Commit | Line | Data |
---|---|---|
bfcd3a46 JP |
1 | /* |
2 | * net/core/devlink.c - Network physical/parent device Netlink interface | |
3 | * | |
4 | * Heavily inspired by net/wireless/ | |
5 | * Copyright (c) 2016 Mellanox Technologies. All rights reserved. | |
6 | * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | */ | |
13 | ||
14 | #include <linux/kernel.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/types.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/gfp.h> | |
19 | #include <linux/device.h> | |
20 | #include <linux/list.h> | |
21 | #include <linux/netdevice.h> | |
22 | #include <rdma/ib_verbs.h> | |
23 | #include <net/netlink.h> | |
24 | #include <net/genetlink.h> | |
25 | #include <net/rtnetlink.h> | |
26 | #include <net/net_namespace.h> | |
27 | #include <net/sock.h> | |
28 | #include <net/devlink.h> | |
e5224f0f JP |
29 | #define CREATE_TRACE_POINTS |
30 | #include <trace/events/devlink.h> | |
31 | ||
11770091 AS |
32 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
33 | { | |
12bdc5e1 | 34 | .name = "destination mac", |
11770091 AS |
35 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
36 | .bitwidth = 48, | |
37 | }, | |
38 | }; | |
39 | ||
40 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
41 | .name = "ethernet", | |
42 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
43 | .fields = devlink_dpipe_fields_ethernet, | |
44 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
45 | .global = true, | |
46 | }; | |
47 | EXPORT_SYMBOL(devlink_dpipe_header_ethernet); | |
48 | ||
3fb886ec AS |
49 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
50 | { | |
51 | .name = "destination ip", | |
52 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
53 | .bitwidth = 32, | |
54 | }, | |
55 | }; | |
56 | ||
57 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
58 | .name = "ipv4", | |
59 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
60 | .fields = devlink_dpipe_fields_ipv4, | |
61 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
62 | .global = true, | |
63 | }; | |
64 | EXPORT_SYMBOL(devlink_dpipe_header_ipv4); | |
65 | ||
1797f5b3 AS |
66 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
67 | { | |
68 | .name = "destination ip", | |
69 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
70 | .bitwidth = 128, | |
71 | }, | |
72 | }; | |
73 | ||
74 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
75 | .name = "ipv6", | |
76 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
77 | .fields = devlink_dpipe_fields_ipv6, | |
78 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
79 | .global = true, | |
80 | }; | |
81 | EXPORT_SYMBOL(devlink_dpipe_header_ipv6); | |
82 | ||
e5224f0f | 83 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
bfcd3a46 JP |
84 | |
85 | static LIST_HEAD(devlink_list); | |
86 | ||
87 | /* devlink_mutex | |
88 | * | |
89 | * An overall lock guarding every operation coming from userspace. | |
90 | * It also guards devlink devices list and it is taken when | |
91 | * driver registers/unregisters it. | |
92 | */ | |
93 | static DEFINE_MUTEX(devlink_mutex); | |
94 | ||
bfcd3a46 JP |
95 | static struct net *devlink_net(const struct devlink *devlink) |
96 | { | |
97 | return read_pnet(&devlink->_net); | |
98 | } | |
99 | ||
100 | static void devlink_net_set(struct devlink *devlink, struct net *net) | |
101 | { | |
102 | write_pnet(&devlink->_net, net); | |
103 | } | |
104 | ||
105 | static struct devlink *devlink_get_from_attrs(struct net *net, | |
106 | struct nlattr **attrs) | |
107 | { | |
108 | struct devlink *devlink; | |
109 | char *busname; | |
110 | char *devname; | |
111 | ||
112 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
113 | return ERR_PTR(-EINVAL); | |
114 | ||
115 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
116 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
117 | ||
118 | list_for_each_entry(devlink, &devlink_list, list) { | |
119 | if (strcmp(devlink->dev->bus->name, busname) == 0 && | |
120 | strcmp(dev_name(devlink->dev), devname) == 0 && | |
121 | net_eq(devlink_net(devlink), net)) | |
122 | return devlink; | |
123 | } | |
124 | ||
125 | return ERR_PTR(-ENODEV); | |
126 | } | |
127 | ||
128 | static struct devlink *devlink_get_from_info(struct genl_info *info) | |
129 | { | |
130 | return devlink_get_from_attrs(genl_info_net(info), info->attrs); | |
131 | } | |
132 | ||
133 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
134 | int port_index) | |
135 | { | |
136 | struct devlink_port *devlink_port; | |
137 | ||
138 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
139 | if (devlink_port->index == port_index) | |
140 | return devlink_port; | |
141 | } | |
142 | return NULL; | |
143 | } | |
144 | ||
145 | static bool devlink_port_index_exists(struct devlink *devlink, int port_index) | |
146 | { | |
147 | return devlink_port_get_by_index(devlink, port_index); | |
148 | } | |
149 | ||
150 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
151 | struct nlattr **attrs) | |
152 | { | |
153 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
154 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
155 | struct devlink_port *devlink_port; | |
156 | ||
157 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
158 | if (!devlink_port) | |
159 | return ERR_PTR(-ENODEV); | |
160 | return devlink_port; | |
161 | } | |
162 | return ERR_PTR(-EINVAL); | |
163 | } | |
164 | ||
165 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
166 | struct genl_info *info) | |
167 | { | |
168 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
169 | } | |
170 | ||
bf797471 JP |
171 | struct devlink_sb { |
172 | struct list_head list; | |
173 | unsigned int index; | |
174 | u32 size; | |
175 | u16 ingress_pools_count; | |
176 | u16 egress_pools_count; | |
177 | u16 ingress_tc_count; | |
178 | u16 egress_tc_count; | |
179 | }; | |
180 | ||
181 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
182 | { | |
183 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
184 | } | |
185 | ||
186 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
187 | unsigned int sb_index) | |
188 | { | |
189 | struct devlink_sb *devlink_sb; | |
190 | ||
191 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
192 | if (devlink_sb->index == sb_index) | |
193 | return devlink_sb; | |
194 | } | |
195 | return NULL; | |
196 | } | |
197 | ||
198 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
199 | unsigned int sb_index) | |
200 | { | |
201 | return devlink_sb_get_by_index(devlink, sb_index); | |
202 | } | |
203 | ||
204 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
205 | struct nlattr **attrs) | |
206 | { | |
207 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
208 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
209 | struct devlink_sb *devlink_sb; | |
210 | ||
211 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
212 | if (!devlink_sb) | |
213 | return ERR_PTR(-ENODEV); | |
214 | return devlink_sb; | |
215 | } | |
216 | return ERR_PTR(-EINVAL); | |
217 | } | |
218 | ||
219 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
220 | struct genl_info *info) | |
221 | { | |
222 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
223 | } | |
224 | ||
225 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
226 | struct nlattr **attrs, | |
227 | u16 *p_pool_index) | |
228 | { | |
229 | u16 val; | |
230 | ||
231 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
232 | return -EINVAL; | |
233 | ||
234 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
235 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
236 | return -EINVAL; | |
237 | *p_pool_index = val; | |
238 | return 0; | |
239 | } | |
240 | ||
241 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
242 | struct genl_info *info, | |
243 | u16 *p_pool_index) | |
244 | { | |
245 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
246 | p_pool_index); | |
247 | } | |
248 | ||
249 | static int | |
250 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
251 | enum devlink_sb_pool_type *p_pool_type) | |
252 | { | |
253 | u8 val; | |
254 | ||
255 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
256 | return -EINVAL; | |
257 | ||
258 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
259 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
260 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
261 | return -EINVAL; | |
262 | *p_pool_type = val; | |
263 | return 0; | |
264 | } | |
265 | ||
266 | static int | |
267 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
268 | enum devlink_sb_pool_type *p_pool_type) | |
269 | { | |
270 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
271 | } | |
272 | ||
273 | static int | |
274 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
275 | enum devlink_sb_threshold_type *p_th_type) | |
276 | { | |
277 | u8 val; | |
278 | ||
279 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
280 | return -EINVAL; | |
281 | ||
282 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
283 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
284 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
285 | return -EINVAL; | |
286 | *p_th_type = val; | |
287 | return 0; | |
288 | } | |
289 | ||
290 | static int | |
291 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
292 | enum devlink_sb_threshold_type *p_th_type) | |
293 | { | |
294 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
295 | } | |
296 | ||
297 | static int | |
298 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
299 | struct nlattr **attrs, | |
300 | enum devlink_sb_pool_type pool_type, | |
301 | u16 *p_tc_index) | |
302 | { | |
303 | u16 val; | |
304 | ||
305 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
306 | return -EINVAL; | |
307 | ||
308 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
309 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
310 | val >= devlink_sb->ingress_tc_count) | |
311 | return -EINVAL; | |
312 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
313 | val >= devlink_sb->egress_tc_count) | |
314 | return -EINVAL; | |
315 | *p_tc_index = val; | |
316 | return 0; | |
317 | } | |
318 | ||
319 | static int | |
320 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
321 | struct genl_info *info, | |
322 | enum devlink_sb_pool_type pool_type, | |
323 | u16 *p_tc_index) | |
324 | { | |
325 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
326 | pool_type, p_tc_index); | |
327 | } | |
328 | ||
b16ebe92 AV |
329 | struct devlink_region { |
330 | struct devlink *devlink; | |
331 | struct list_head list; | |
332 | const char *name; | |
333 | struct list_head snapshot_list; | |
334 | u32 max_snapshots; | |
335 | u32 cur_snapshots; | |
336 | u64 size; | |
337 | }; | |
338 | ||
d7e52722 AV |
339 | struct devlink_snapshot { |
340 | struct list_head list; | |
341 | struct devlink_region *region; | |
342 | devlink_snapshot_data_dest_t *data_destructor; | |
343 | u64 data_len; | |
344 | u8 *data; | |
345 | u32 id; | |
346 | }; | |
347 | ||
b16ebe92 AV |
348 | static struct devlink_region * |
349 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
350 | { | |
351 | struct devlink_region *region; | |
352 | ||
353 | list_for_each_entry(region, &devlink->region_list, list) | |
354 | if (!strcmp(region->name, region_name)) | |
355 | return region; | |
356 | ||
357 | return NULL; | |
358 | } | |
359 | ||
d7e52722 AV |
360 | static struct devlink_snapshot * |
361 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
362 | { | |
363 | struct devlink_snapshot *snapshot; | |
364 | ||
365 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
366 | if (snapshot->id == id) | |
367 | return snapshot; | |
368 | ||
369 | return NULL; | |
370 | } | |
371 | ||
372 | static void devlink_region_snapshot_del(struct devlink_snapshot *snapshot) | |
373 | { | |
374 | snapshot->region->cur_snapshots--; | |
375 | list_del(&snapshot->list); | |
376 | (*snapshot->data_destructor)(snapshot->data); | |
377 | kfree(snapshot); | |
378 | } | |
379 | ||
1fc2257e JP |
380 | #define DEVLINK_NL_FLAG_NEED_DEVLINK BIT(0) |
381 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(1) | |
bf797471 | 382 | #define DEVLINK_NL_FLAG_NEED_SB BIT(2) |
2406e7e5 AS |
383 | |
384 | /* The per devlink instance lock is taken by default in the pre-doit | |
385 | * operation, yet several commands do not require this. The global | |
386 | * devlink lock is taken and protects from disruption by user-calls. | |
387 | */ | |
388 | #define DEVLINK_NL_FLAG_NO_LOCK BIT(3) | |
bfcd3a46 JP |
389 | |
390 | static int devlink_nl_pre_doit(const struct genl_ops *ops, | |
391 | struct sk_buff *skb, struct genl_info *info) | |
392 | { | |
393 | struct devlink *devlink; | |
2406e7e5 | 394 | int err; |
bfcd3a46 JP |
395 | |
396 | mutex_lock(&devlink_mutex); | |
397 | devlink = devlink_get_from_info(info); | |
398 | if (IS_ERR(devlink)) { | |
399 | mutex_unlock(&devlink_mutex); | |
400 | return PTR_ERR(devlink); | |
401 | } | |
2406e7e5 AS |
402 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
403 | mutex_lock(&devlink->lock); | |
1fc2257e JP |
404 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) { |
405 | info->user_ptr[0] = devlink; | |
406 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
407 | struct devlink_port *devlink_port; |
408 | ||
bfcd3a46 JP |
409 | devlink_port = devlink_port_get_from_info(devlink, info); |
410 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
411 | err = PTR_ERR(devlink_port); |
412 | goto unlock; | |
bfcd3a46 | 413 | } |
1fc2257e | 414 | info->user_ptr[0] = devlink_port; |
bfcd3a46 | 415 | } |
bf797471 JP |
416 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_SB) { |
417 | struct devlink_sb *devlink_sb; | |
418 | ||
419 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
420 | if (IS_ERR(devlink_sb)) { | |
2406e7e5 AS |
421 | err = PTR_ERR(devlink_sb); |
422 | goto unlock; | |
bf797471 JP |
423 | } |
424 | info->user_ptr[1] = devlink_sb; | |
425 | } | |
bfcd3a46 | 426 | return 0; |
2406e7e5 AS |
427 | |
428 | unlock: | |
429 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
430 | mutex_unlock(&devlink->lock); | |
431 | mutex_unlock(&devlink_mutex); | |
432 | return err; | |
bfcd3a46 JP |
433 | } |
434 | ||
435 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
436 | struct sk_buff *skb, struct genl_info *info) | |
437 | { | |
2406e7e5 AS |
438 | struct devlink *devlink; |
439 | ||
440 | devlink = devlink_get_from_info(info); | |
441 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
442 | mutex_unlock(&devlink->lock); | |
bfcd3a46 JP |
443 | mutex_unlock(&devlink_mutex); |
444 | } | |
445 | ||
489111e5 | 446 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
447 | |
448 | enum devlink_multicast_groups { | |
449 | DEVLINK_MCGRP_CONFIG, | |
450 | }; | |
451 | ||
452 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
453 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
454 | }; | |
455 | ||
456 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
457 | { | |
458 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
459 | return -EMSGSIZE; | |
460 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
461 | return -EMSGSIZE; | |
462 | return 0; | |
463 | } | |
464 | ||
465 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, | |
466 | enum devlink_command cmd, u32 portid, | |
467 | u32 seq, int flags) | |
468 | { | |
469 | void *hdr; | |
470 | ||
471 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
472 | if (!hdr) | |
473 | return -EMSGSIZE; | |
474 | ||
475 | if (devlink_nl_put_handle(msg, devlink)) | |
476 | goto nla_put_failure; | |
477 | ||
478 | genlmsg_end(msg, hdr); | |
479 | return 0; | |
480 | ||
481 | nla_put_failure: | |
482 | genlmsg_cancel(msg, hdr); | |
483 | return -EMSGSIZE; | |
484 | } | |
485 | ||
486 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
487 | { | |
488 | struct sk_buff *msg; | |
489 | int err; | |
490 | ||
491 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
492 | ||
493 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
494 | if (!msg) | |
495 | return; | |
496 | ||
497 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
498 | if (err) { | |
499 | nlmsg_free(msg); | |
500 | return; | |
501 | } | |
502 | ||
503 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
504 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
505 | } | |
506 | ||
b9ffcbaf JP |
507 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
508 | struct devlink_port *devlink_port) | |
509 | { | |
510 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
511 | ||
512 | if (!attrs->set) | |
513 | return 0; | |
5ec1380a JP |
514 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
515 | return -EMSGSIZE; | |
b9ffcbaf JP |
516 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, attrs->port_number)) |
517 | return -EMSGSIZE; | |
518 | if (!attrs->split) | |
519 | return 0; | |
520 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, attrs->port_number)) | |
521 | return -EMSGSIZE; | |
522 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
523 | attrs->split_subport_number)) | |
524 | return -EMSGSIZE; | |
525 | return 0; | |
526 | } | |
527 | ||
bfcd3a46 JP |
528 | static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink, |
529 | struct devlink_port *devlink_port, | |
530 | enum devlink_command cmd, u32 portid, | |
531 | u32 seq, int flags) | |
532 | { | |
533 | void *hdr; | |
534 | ||
535 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
536 | if (!hdr) | |
537 | return -EMSGSIZE; | |
538 | ||
539 | if (devlink_nl_put_handle(msg, devlink)) | |
540 | goto nla_put_failure; | |
541 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
542 | goto nla_put_failure; | |
543 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) | |
544 | goto nla_put_failure; | |
545 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && | |
546 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
547 | devlink_port->desired_type)) | |
548 | goto nla_put_failure; | |
549 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { | |
550 | struct net_device *netdev = devlink_port->type_dev; | |
551 | ||
552 | if (netdev && | |
553 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, | |
554 | netdev->ifindex) || | |
555 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
556 | netdev->name))) | |
557 | goto nla_put_failure; | |
558 | } | |
559 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
560 | struct ib_device *ibdev = devlink_port->type_dev; | |
561 | ||
562 | if (ibdev && | |
563 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
564 | ibdev->name)) | |
565 | goto nla_put_failure; | |
566 | } | |
b9ffcbaf | 567 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 JP |
568 | goto nla_put_failure; |
569 | ||
570 | genlmsg_end(msg, hdr); | |
571 | return 0; | |
572 | ||
573 | nla_put_failure: | |
574 | genlmsg_cancel(msg, hdr); | |
575 | return -EMSGSIZE; | |
576 | } | |
577 | ||
578 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
579 | enum devlink_command cmd) | |
580 | { | |
581 | struct devlink *devlink = devlink_port->devlink; | |
582 | struct sk_buff *msg; | |
583 | int err; | |
584 | ||
585 | if (!devlink_port->registered) | |
586 | return; | |
587 | ||
588 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); | |
589 | ||
590 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
591 | if (!msg) | |
592 | return; | |
593 | ||
594 | err = devlink_nl_port_fill(msg, devlink, devlink_port, cmd, 0, 0, 0); | |
595 | if (err) { | |
596 | nlmsg_free(msg); | |
597 | return; | |
598 | } | |
599 | ||
600 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
601 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
602 | } | |
603 | ||
604 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) | |
605 | { | |
606 | struct devlink *devlink = info->user_ptr[0]; | |
607 | struct sk_buff *msg; | |
608 | int err; | |
609 | ||
610 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
611 | if (!msg) | |
612 | return -ENOMEM; | |
613 | ||
614 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
615 | info->snd_portid, info->snd_seq, 0); | |
616 | if (err) { | |
617 | nlmsg_free(msg); | |
618 | return err; | |
619 | } | |
620 | ||
621 | return genlmsg_reply(msg, info); | |
622 | } | |
623 | ||
624 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
625 | struct netlink_callback *cb) | |
626 | { | |
627 | struct devlink *devlink; | |
628 | int start = cb->args[0]; | |
629 | int idx = 0; | |
630 | int err; | |
631 | ||
632 | mutex_lock(&devlink_mutex); | |
633 | list_for_each_entry(devlink, &devlink_list, list) { | |
634 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
635 | continue; | |
636 | if (idx < start) { | |
637 | idx++; | |
638 | continue; | |
639 | } | |
640 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
641 | NETLINK_CB(cb->skb).portid, | |
642 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
643 | if (err) | |
644 | goto out; | |
645 | idx++; | |
646 | } | |
647 | out: | |
648 | mutex_unlock(&devlink_mutex); | |
649 | ||
650 | cb->args[0] = idx; | |
651 | return msg->len; | |
652 | } | |
653 | ||
654 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
655 | struct genl_info *info) | |
656 | { | |
1fc2257e JP |
657 | struct devlink_port *devlink_port = info->user_ptr[0]; |
658 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
659 | struct sk_buff *msg; |
660 | int err; | |
661 | ||
662 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
663 | if (!msg) | |
664 | return -ENOMEM; | |
665 | ||
666 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
667 | DEVLINK_CMD_PORT_NEW, | |
668 | info->snd_portid, info->snd_seq, 0); | |
669 | if (err) { | |
670 | nlmsg_free(msg); | |
671 | return err; | |
672 | } | |
673 | ||
674 | return genlmsg_reply(msg, info); | |
675 | } | |
676 | ||
677 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
678 | struct netlink_callback *cb) | |
679 | { | |
680 | struct devlink *devlink; | |
681 | struct devlink_port *devlink_port; | |
682 | int start = cb->args[0]; | |
683 | int idx = 0; | |
684 | int err; | |
685 | ||
686 | mutex_lock(&devlink_mutex); | |
bfcd3a46 JP |
687 | list_for_each_entry(devlink, &devlink_list, list) { |
688 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
689 | continue; | |
2406e7e5 | 690 | mutex_lock(&devlink->lock); |
bfcd3a46 JP |
691 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
692 | if (idx < start) { | |
693 | idx++; | |
694 | continue; | |
695 | } | |
696 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
697 | DEVLINK_CMD_NEW, | |
698 | NETLINK_CB(cb->skb).portid, | |
699 | cb->nlh->nlmsg_seq, | |
700 | NLM_F_MULTI); | |
2406e7e5 AS |
701 | if (err) { |
702 | mutex_unlock(&devlink->lock); | |
bfcd3a46 | 703 | goto out; |
2406e7e5 | 704 | } |
bfcd3a46 JP |
705 | idx++; |
706 | } | |
2406e7e5 | 707 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
708 | } |
709 | out: | |
bfcd3a46 JP |
710 | mutex_unlock(&devlink_mutex); |
711 | ||
712 | cb->args[0] = idx; | |
713 | return msg->len; | |
714 | } | |
715 | ||
716 | static int devlink_port_type_set(struct devlink *devlink, | |
717 | struct devlink_port *devlink_port, | |
718 | enum devlink_port_type port_type) | |
719 | ||
720 | { | |
721 | int err; | |
722 | ||
723 | if (devlink->ops && devlink->ops->port_type_set) { | |
724 | if (port_type == DEVLINK_PORT_TYPE_NOTSET) | |
725 | return -EINVAL; | |
6edf1017 ER |
726 | if (port_type == devlink_port->type) |
727 | return 0; | |
bfcd3a46 JP |
728 | err = devlink->ops->port_type_set(devlink_port, port_type); |
729 | if (err) | |
730 | return err; | |
731 | devlink_port->desired_type = port_type; | |
732 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
733 | return 0; | |
734 | } | |
735 | return -EOPNOTSUPP; | |
736 | } | |
737 | ||
738 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, | |
739 | struct genl_info *info) | |
740 | { | |
1fc2257e JP |
741 | struct devlink_port *devlink_port = info->user_ptr[0]; |
742 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
743 | int err; |
744 | ||
745 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
746 | enum devlink_port_type port_type; | |
747 | ||
748 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
749 | err = devlink_port_type_set(devlink, devlink_port, port_type); | |
750 | if (err) | |
751 | return err; | |
752 | } | |
753 | return 0; | |
754 | } | |
755 | ||
ac0fc8a1 DA |
756 | static int devlink_port_split(struct devlink *devlink, u32 port_index, |
757 | u32 count, struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
758 | |
759 | { | |
760 | if (devlink->ops && devlink->ops->port_split) | |
ac0fc8a1 DA |
761 | return devlink->ops->port_split(devlink, port_index, count, |
762 | extack); | |
bfcd3a46 JP |
763 | return -EOPNOTSUPP; |
764 | } | |
765 | ||
766 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, | |
767 | struct genl_info *info) | |
768 | { | |
769 | struct devlink *devlink = info->user_ptr[0]; | |
770 | u32 port_index; | |
771 | u32 count; | |
772 | ||
773 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX] || | |
774 | !info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) | |
775 | return -EINVAL; | |
776 | ||
777 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
778 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); | |
ac0fc8a1 | 779 | return devlink_port_split(devlink, port_index, count, info->extack); |
bfcd3a46 JP |
780 | } |
781 | ||
ac0fc8a1 DA |
782 | static int devlink_port_unsplit(struct devlink *devlink, u32 port_index, |
783 | struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
784 | |
785 | { | |
786 | if (devlink->ops && devlink->ops->port_unsplit) | |
ac0fc8a1 | 787 | return devlink->ops->port_unsplit(devlink, port_index, extack); |
bfcd3a46 JP |
788 | return -EOPNOTSUPP; |
789 | } | |
790 | ||
791 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
792 | struct genl_info *info) | |
793 | { | |
794 | struct devlink *devlink = info->user_ptr[0]; | |
795 | u32 port_index; | |
796 | ||
797 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) | |
798 | return -EINVAL; | |
799 | ||
800 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
ac0fc8a1 | 801 | return devlink_port_unsplit(devlink, port_index, info->extack); |
bfcd3a46 JP |
802 | } |
803 | ||
bf797471 JP |
804 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
805 | struct devlink_sb *devlink_sb, | |
806 | enum devlink_command cmd, u32 portid, | |
807 | u32 seq, int flags) | |
808 | { | |
809 | void *hdr; | |
810 | ||
811 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
812 | if (!hdr) | |
813 | return -EMSGSIZE; | |
814 | ||
815 | if (devlink_nl_put_handle(msg, devlink)) | |
816 | goto nla_put_failure; | |
817 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
818 | goto nla_put_failure; | |
819 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
820 | goto nla_put_failure; | |
821 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
822 | devlink_sb->ingress_pools_count)) | |
823 | goto nla_put_failure; | |
824 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
825 | devlink_sb->egress_pools_count)) | |
826 | goto nla_put_failure; | |
827 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
828 | devlink_sb->ingress_tc_count)) | |
829 | goto nla_put_failure; | |
830 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
831 | devlink_sb->egress_tc_count)) | |
832 | goto nla_put_failure; | |
833 | ||
834 | genlmsg_end(msg, hdr); | |
835 | return 0; | |
836 | ||
837 | nla_put_failure: | |
838 | genlmsg_cancel(msg, hdr); | |
839 | return -EMSGSIZE; | |
840 | } | |
841 | ||
842 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
843 | struct genl_info *info) | |
844 | { | |
845 | struct devlink *devlink = info->user_ptr[0]; | |
846 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
847 | struct sk_buff *msg; | |
848 | int err; | |
849 | ||
850 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
851 | if (!msg) | |
852 | return -ENOMEM; | |
853 | ||
854 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
855 | DEVLINK_CMD_SB_NEW, | |
856 | info->snd_portid, info->snd_seq, 0); | |
857 | if (err) { | |
858 | nlmsg_free(msg); | |
859 | return err; | |
860 | } | |
861 | ||
862 | return genlmsg_reply(msg, info); | |
863 | } | |
864 | ||
865 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
866 | struct netlink_callback *cb) | |
867 | { | |
868 | struct devlink *devlink; | |
869 | struct devlink_sb *devlink_sb; | |
870 | int start = cb->args[0]; | |
871 | int idx = 0; | |
872 | int err; | |
873 | ||
874 | mutex_lock(&devlink_mutex); | |
875 | list_for_each_entry(devlink, &devlink_list, list) { | |
876 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
877 | continue; | |
2406e7e5 | 878 | mutex_lock(&devlink->lock); |
bf797471 JP |
879 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
880 | if (idx < start) { | |
881 | idx++; | |
882 | continue; | |
883 | } | |
884 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
885 | DEVLINK_CMD_SB_NEW, | |
886 | NETLINK_CB(cb->skb).portid, | |
887 | cb->nlh->nlmsg_seq, | |
888 | NLM_F_MULTI); | |
2406e7e5 AS |
889 | if (err) { |
890 | mutex_unlock(&devlink->lock); | |
bf797471 | 891 | goto out; |
2406e7e5 | 892 | } |
bf797471 JP |
893 | idx++; |
894 | } | |
2406e7e5 | 895 | mutex_unlock(&devlink->lock); |
bf797471 JP |
896 | } |
897 | out: | |
898 | mutex_unlock(&devlink_mutex); | |
899 | ||
900 | cb->args[0] = idx; | |
901 | return msg->len; | |
902 | } | |
903 | ||
904 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
905 | struct devlink_sb *devlink_sb, | |
906 | u16 pool_index, enum devlink_command cmd, | |
907 | u32 portid, u32 seq, int flags) | |
908 | { | |
909 | struct devlink_sb_pool_info pool_info; | |
910 | void *hdr; | |
911 | int err; | |
912 | ||
913 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
914 | pool_index, &pool_info); | |
915 | if (err) | |
916 | return err; | |
917 | ||
918 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
919 | if (!hdr) | |
920 | return -EMSGSIZE; | |
921 | ||
922 | if (devlink_nl_put_handle(msg, devlink)) | |
923 | goto nla_put_failure; | |
924 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
925 | goto nla_put_failure; | |
926 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
927 | goto nla_put_failure; | |
928 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
929 | goto nla_put_failure; | |
930 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
931 | goto nla_put_failure; | |
932 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
933 | pool_info.threshold_type)) | |
934 | goto nla_put_failure; | |
935 | ||
936 | genlmsg_end(msg, hdr); | |
937 | return 0; | |
938 | ||
939 | nla_put_failure: | |
940 | genlmsg_cancel(msg, hdr); | |
941 | return -EMSGSIZE; | |
942 | } | |
943 | ||
944 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
945 | struct genl_info *info) | |
946 | { | |
947 | struct devlink *devlink = info->user_ptr[0]; | |
948 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
949 | struct sk_buff *msg; | |
950 | u16 pool_index; | |
951 | int err; | |
952 | ||
953 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
954 | &pool_index); | |
955 | if (err) | |
956 | return err; | |
957 | ||
958 | if (!devlink->ops || !devlink->ops->sb_pool_get) | |
959 | return -EOPNOTSUPP; | |
960 | ||
961 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
962 | if (!msg) | |
963 | return -ENOMEM; | |
964 | ||
965 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
966 | DEVLINK_CMD_SB_POOL_NEW, | |
967 | info->snd_portid, info->snd_seq, 0); | |
968 | if (err) { | |
969 | nlmsg_free(msg); | |
970 | return err; | |
971 | } | |
972 | ||
973 | return genlmsg_reply(msg, info); | |
974 | } | |
975 | ||
976 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
977 | struct devlink *devlink, | |
978 | struct devlink_sb *devlink_sb, | |
979 | u32 portid, u32 seq) | |
980 | { | |
981 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
982 | u16 pool_index; | |
983 | int err; | |
984 | ||
985 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
986 | if (*p_idx < start) { | |
987 | (*p_idx)++; | |
988 | continue; | |
989 | } | |
990 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
991 | devlink_sb, | |
992 | pool_index, | |
993 | DEVLINK_CMD_SB_POOL_NEW, | |
994 | portid, seq, NLM_F_MULTI); | |
995 | if (err) | |
996 | return err; | |
997 | (*p_idx)++; | |
998 | } | |
999 | return 0; | |
1000 | } | |
1001 | ||
1002 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
1003 | struct netlink_callback *cb) | |
1004 | { | |
1005 | struct devlink *devlink; | |
1006 | struct devlink_sb *devlink_sb; | |
1007 | int start = cb->args[0]; | |
1008 | int idx = 0; | |
1009 | int err; | |
1010 | ||
1011 | mutex_lock(&devlink_mutex); | |
1012 | list_for_each_entry(devlink, &devlink_list, list) { | |
1013 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1014 | !devlink->ops || !devlink->ops->sb_pool_get) | |
1015 | continue; | |
2406e7e5 | 1016 | mutex_lock(&devlink->lock); |
bf797471 JP |
1017 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1018 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
1019 | devlink_sb, | |
1020 | NETLINK_CB(cb->skb).portid, | |
1021 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1022 | if (err && err != -EOPNOTSUPP) { |
1023 | mutex_unlock(&devlink->lock); | |
bf797471 | 1024 | goto out; |
2406e7e5 | 1025 | } |
bf797471 | 1026 | } |
2406e7e5 | 1027 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1028 | } |
1029 | out: | |
1030 | mutex_unlock(&devlink_mutex); | |
1031 | ||
1032 | cb->args[0] = idx; | |
1033 | return msg->len; | |
1034 | } | |
1035 | ||
1036 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
1037 | u16 pool_index, u32 size, | |
1038 | enum devlink_sb_threshold_type threshold_type) | |
1039 | ||
1040 | { | |
1041 | const struct devlink_ops *ops = devlink->ops; | |
1042 | ||
1043 | if (ops && ops->sb_pool_set) | |
1044 | return ops->sb_pool_set(devlink, sb_index, pool_index, | |
1045 | size, threshold_type); | |
1046 | return -EOPNOTSUPP; | |
1047 | } | |
1048 | ||
1049 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
1050 | struct genl_info *info) | |
1051 | { | |
1052 | struct devlink *devlink = info->user_ptr[0]; | |
1053 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1054 | enum devlink_sb_threshold_type threshold_type; | |
1055 | u16 pool_index; | |
1056 | u32 size; | |
1057 | int err; | |
1058 | ||
1059 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1060 | &pool_index); | |
1061 | if (err) | |
1062 | return err; | |
1063 | ||
1064 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
1065 | if (err) | |
1066 | return err; | |
1067 | ||
1068 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
1069 | return -EINVAL; | |
1070 | ||
1071 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
1072 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
1073 | pool_index, size, threshold_type); | |
1074 | } | |
1075 | ||
1076 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
1077 | struct devlink *devlink, | |
1078 | struct devlink_port *devlink_port, | |
1079 | struct devlink_sb *devlink_sb, | |
1080 | u16 pool_index, | |
1081 | enum devlink_command cmd, | |
1082 | u32 portid, u32 seq, int flags) | |
1083 | { | |
df38dafd | 1084 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1085 | u32 threshold; |
1086 | void *hdr; | |
1087 | int err; | |
1088 | ||
df38dafd JP |
1089 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
1090 | pool_index, &threshold); | |
bf797471 JP |
1091 | if (err) |
1092 | return err; | |
1093 | ||
1094 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1095 | if (!hdr) | |
1096 | return -EMSGSIZE; | |
1097 | ||
1098 | if (devlink_nl_put_handle(msg, devlink)) | |
1099 | goto nla_put_failure; | |
1100 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1101 | goto nla_put_failure; | |
1102 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1103 | goto nla_put_failure; | |
1104 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1105 | goto nla_put_failure; | |
1106 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1107 | goto nla_put_failure; | |
1108 | ||
df38dafd JP |
1109 | if (ops->sb_occ_port_pool_get) { |
1110 | u32 cur; | |
1111 | u32 max; | |
1112 | ||
1113 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
1114 | pool_index, &cur, &max); | |
1115 | if (err && err != -EOPNOTSUPP) | |
1116 | return err; | |
1117 | if (!err) { | |
1118 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1119 | goto nla_put_failure; | |
1120 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1121 | goto nla_put_failure; | |
1122 | } | |
1123 | } | |
1124 | ||
bf797471 JP |
1125 | genlmsg_end(msg, hdr); |
1126 | return 0; | |
1127 | ||
1128 | nla_put_failure: | |
1129 | genlmsg_cancel(msg, hdr); | |
1130 | return -EMSGSIZE; | |
1131 | } | |
1132 | ||
1133 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
1134 | struct genl_info *info) | |
1135 | { | |
1136 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1137 | struct devlink *devlink = devlink_port->devlink; | |
1138 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1139 | struct sk_buff *msg; | |
1140 | u16 pool_index; | |
1141 | int err; | |
1142 | ||
1143 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1144 | &pool_index); | |
1145 | if (err) | |
1146 | return err; | |
1147 | ||
1148 | if (!devlink->ops || !devlink->ops->sb_port_pool_get) | |
1149 | return -EOPNOTSUPP; | |
1150 | ||
1151 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1152 | if (!msg) | |
1153 | return -ENOMEM; | |
1154 | ||
1155 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
1156 | devlink_sb, pool_index, | |
1157 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1158 | info->snd_portid, info->snd_seq, 0); | |
1159 | if (err) { | |
1160 | nlmsg_free(msg); | |
1161 | return err; | |
1162 | } | |
1163 | ||
1164 | return genlmsg_reply(msg, info); | |
1165 | } | |
1166 | ||
1167 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
1168 | struct devlink *devlink, | |
1169 | struct devlink_sb *devlink_sb, | |
1170 | u32 portid, u32 seq) | |
1171 | { | |
1172 | struct devlink_port *devlink_port; | |
1173 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
1174 | u16 pool_index; | |
1175 | int err; | |
1176 | ||
1177 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1178 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
1179 | if (*p_idx < start) { | |
1180 | (*p_idx)++; | |
1181 | continue; | |
1182 | } | |
1183 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
1184 | devlink_port, | |
1185 | devlink_sb, | |
1186 | pool_index, | |
1187 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1188 | portid, seq, | |
1189 | NLM_F_MULTI); | |
1190 | if (err) | |
1191 | return err; | |
1192 | (*p_idx)++; | |
1193 | } | |
1194 | } | |
1195 | return 0; | |
1196 | } | |
1197 | ||
1198 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
1199 | struct netlink_callback *cb) | |
1200 | { | |
1201 | struct devlink *devlink; | |
1202 | struct devlink_sb *devlink_sb; | |
1203 | int start = cb->args[0]; | |
1204 | int idx = 0; | |
1205 | int err; | |
1206 | ||
1207 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1208 | list_for_each_entry(devlink, &devlink_list, list) { |
1209 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1210 | !devlink->ops || !devlink->ops->sb_port_pool_get) | |
1211 | continue; | |
2406e7e5 | 1212 | mutex_lock(&devlink->lock); |
bf797471 JP |
1213 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1214 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
1215 | devlink, devlink_sb, | |
1216 | NETLINK_CB(cb->skb).portid, | |
1217 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1218 | if (err && err != -EOPNOTSUPP) { |
1219 | mutex_unlock(&devlink->lock); | |
bf797471 | 1220 | goto out; |
2406e7e5 | 1221 | } |
bf797471 | 1222 | } |
2406e7e5 | 1223 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1224 | } |
1225 | out: | |
bf797471 JP |
1226 | mutex_unlock(&devlink_mutex); |
1227 | ||
1228 | cb->args[0] = idx; | |
1229 | return msg->len; | |
1230 | } | |
1231 | ||
1232 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
1233 | unsigned int sb_index, u16 pool_index, | |
1234 | u32 threshold) | |
1235 | ||
1236 | { | |
1237 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1238 | ||
1239 | if (ops && ops->sb_port_pool_set) | |
1240 | return ops->sb_port_pool_set(devlink_port, sb_index, | |
1241 | pool_index, threshold); | |
1242 | return -EOPNOTSUPP; | |
1243 | } | |
1244 | ||
1245 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
1246 | struct genl_info *info) | |
1247 | { | |
1248 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1249 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1250 | u16 pool_index; | |
1251 | u32 threshold; | |
1252 | int err; | |
1253 | ||
1254 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1255 | &pool_index); | |
1256 | if (err) | |
1257 | return err; | |
1258 | ||
1259 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1260 | return -EINVAL; | |
1261 | ||
1262 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1263 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
1264 | pool_index, threshold); | |
1265 | } | |
1266 | ||
1267 | static int | |
1268 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
1269 | struct devlink_port *devlink_port, | |
1270 | struct devlink_sb *devlink_sb, u16 tc_index, | |
1271 | enum devlink_sb_pool_type pool_type, | |
1272 | enum devlink_command cmd, | |
1273 | u32 portid, u32 seq, int flags) | |
1274 | { | |
df38dafd | 1275 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1276 | u16 pool_index; |
1277 | u32 threshold; | |
1278 | void *hdr; | |
1279 | int err; | |
1280 | ||
df38dafd JP |
1281 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
1282 | tc_index, pool_type, | |
1283 | &pool_index, &threshold); | |
bf797471 JP |
1284 | if (err) |
1285 | return err; | |
1286 | ||
1287 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1288 | if (!hdr) | |
1289 | return -EMSGSIZE; | |
1290 | ||
1291 | if (devlink_nl_put_handle(msg, devlink)) | |
1292 | goto nla_put_failure; | |
1293 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1294 | goto nla_put_failure; | |
1295 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1296 | goto nla_put_failure; | |
1297 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
1298 | goto nla_put_failure; | |
1299 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
1300 | goto nla_put_failure; | |
1301 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1302 | goto nla_put_failure; | |
1303 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1304 | goto nla_put_failure; | |
1305 | ||
df38dafd JP |
1306 | if (ops->sb_occ_tc_port_bind_get) { |
1307 | u32 cur; | |
1308 | u32 max; | |
1309 | ||
1310 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
1311 | devlink_sb->index, | |
1312 | tc_index, pool_type, | |
1313 | &cur, &max); | |
1314 | if (err && err != -EOPNOTSUPP) | |
1315 | return err; | |
1316 | if (!err) { | |
1317 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1318 | goto nla_put_failure; | |
1319 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1320 | goto nla_put_failure; | |
1321 | } | |
1322 | } | |
1323 | ||
bf797471 JP |
1324 | genlmsg_end(msg, hdr); |
1325 | return 0; | |
1326 | ||
1327 | nla_put_failure: | |
1328 | genlmsg_cancel(msg, hdr); | |
1329 | return -EMSGSIZE; | |
1330 | } | |
1331 | ||
1332 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
1333 | struct genl_info *info) | |
1334 | { | |
1335 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1336 | struct devlink *devlink = devlink_port->devlink; | |
1337 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1338 | struct sk_buff *msg; | |
1339 | enum devlink_sb_pool_type pool_type; | |
1340 | u16 tc_index; | |
1341 | int err; | |
1342 | ||
1343 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1344 | if (err) | |
1345 | return err; | |
1346 | ||
1347 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1348 | pool_type, &tc_index); | |
1349 | if (err) | |
1350 | return err; | |
1351 | ||
1352 | if (!devlink->ops || !devlink->ops->sb_tc_pool_bind_get) | |
1353 | return -EOPNOTSUPP; | |
1354 | ||
1355 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1356 | if (!msg) | |
1357 | return -ENOMEM; | |
1358 | ||
1359 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
1360 | devlink_sb, tc_index, pool_type, | |
1361 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1362 | info->snd_portid, | |
1363 | info->snd_seq, 0); | |
1364 | if (err) { | |
1365 | nlmsg_free(msg); | |
1366 | return err; | |
1367 | } | |
1368 | ||
1369 | return genlmsg_reply(msg, info); | |
1370 | } | |
1371 | ||
1372 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1373 | int start, int *p_idx, | |
1374 | struct devlink *devlink, | |
1375 | struct devlink_sb *devlink_sb, | |
1376 | u32 portid, u32 seq) | |
1377 | { | |
1378 | struct devlink_port *devlink_port; | |
1379 | u16 tc_index; | |
1380 | int err; | |
1381 | ||
1382 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1383 | for (tc_index = 0; | |
1384 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
1385 | if (*p_idx < start) { | |
1386 | (*p_idx)++; | |
1387 | continue; | |
1388 | } | |
1389 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1390 | devlink_port, | |
1391 | devlink_sb, | |
1392 | tc_index, | |
1393 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
1394 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1395 | portid, seq, | |
1396 | NLM_F_MULTI); | |
1397 | if (err) | |
1398 | return err; | |
1399 | (*p_idx)++; | |
1400 | } | |
1401 | for (tc_index = 0; | |
1402 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
1403 | if (*p_idx < start) { | |
1404 | (*p_idx)++; | |
1405 | continue; | |
1406 | } | |
1407 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1408 | devlink_port, | |
1409 | devlink_sb, | |
1410 | tc_index, | |
1411 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
1412 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1413 | portid, seq, | |
1414 | NLM_F_MULTI); | |
1415 | if (err) | |
1416 | return err; | |
1417 | (*p_idx)++; | |
1418 | } | |
1419 | } | |
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | static int | |
1424 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1425 | struct netlink_callback *cb) | |
1426 | { | |
1427 | struct devlink *devlink; | |
1428 | struct devlink_sb *devlink_sb; | |
1429 | int start = cb->args[0]; | |
1430 | int idx = 0; | |
1431 | int err; | |
1432 | ||
1433 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1434 | list_for_each_entry(devlink, &devlink_list, list) { |
1435 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1436 | !devlink->ops || !devlink->ops->sb_tc_pool_bind_get) | |
1437 | continue; | |
2406e7e5 AS |
1438 | |
1439 | mutex_lock(&devlink->lock); | |
bf797471 JP |
1440 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1441 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
1442 | devlink, | |
1443 | devlink_sb, | |
1444 | NETLINK_CB(cb->skb).portid, | |
1445 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1446 | if (err && err != -EOPNOTSUPP) { |
1447 | mutex_unlock(&devlink->lock); | |
bf797471 | 1448 | goto out; |
2406e7e5 | 1449 | } |
bf797471 | 1450 | } |
2406e7e5 | 1451 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1452 | } |
1453 | out: | |
bf797471 JP |
1454 | mutex_unlock(&devlink_mutex); |
1455 | ||
1456 | cb->args[0] = idx; | |
1457 | return msg->len; | |
1458 | } | |
1459 | ||
1460 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
1461 | unsigned int sb_index, u16 tc_index, | |
1462 | enum devlink_sb_pool_type pool_type, | |
1463 | u16 pool_index, u32 threshold) | |
1464 | ||
1465 | { | |
1466 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1467 | ||
1468 | if (ops && ops->sb_tc_pool_bind_set) | |
1469 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, | |
1470 | tc_index, pool_type, | |
1471 | pool_index, threshold); | |
1472 | return -EOPNOTSUPP; | |
1473 | } | |
1474 | ||
1475 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
1476 | struct genl_info *info) | |
1477 | { | |
1478 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1479 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1480 | enum devlink_sb_pool_type pool_type; | |
1481 | u16 tc_index; | |
1482 | u16 pool_index; | |
1483 | u32 threshold; | |
1484 | int err; | |
1485 | ||
1486 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1487 | if (err) | |
1488 | return err; | |
1489 | ||
1490 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1491 | pool_type, &tc_index); | |
1492 | if (err) | |
1493 | return err; | |
1494 | ||
1495 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1496 | &pool_index); | |
1497 | if (err) | |
1498 | return err; | |
1499 | ||
1500 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1501 | return -EINVAL; | |
1502 | ||
1503 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1504 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
1505 | tc_index, pool_type, | |
1506 | pool_index, threshold); | |
1507 | } | |
1508 | ||
df38dafd JP |
1509 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
1510 | struct genl_info *info) | |
1511 | { | |
1512 | struct devlink *devlink = info->user_ptr[0]; | |
1513 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1514 | const struct devlink_ops *ops = devlink->ops; | |
1515 | ||
1516 | if (ops && ops->sb_occ_snapshot) | |
1517 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); | |
1518 | return -EOPNOTSUPP; | |
1519 | } | |
1520 | ||
1521 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
1522 | struct genl_info *info) | |
1523 | { | |
1524 | struct devlink *devlink = info->user_ptr[0]; | |
1525 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1526 | const struct devlink_ops *ops = devlink->ops; | |
1527 | ||
1528 | if (ops && ops->sb_occ_max_clear) | |
1529 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); | |
1530 | return -EOPNOTSUPP; | |
1531 | } | |
1532 | ||
21e3d2dd JP |
1533 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
1534 | enum devlink_command cmd, u32 portid, | |
1535 | u32 seq, int flags) | |
08f4b591 | 1536 | { |
59bfde01 | 1537 | const struct devlink_ops *ops = devlink->ops; |
f43e9b06 | 1538 | u8 inline_mode, encap_mode; |
08f4b591 | 1539 | void *hdr; |
59bfde01 RD |
1540 | int err = 0; |
1541 | u16 mode; | |
08f4b591 OG |
1542 | |
1543 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1544 | if (!hdr) | |
1545 | return -EMSGSIZE; | |
1546 | ||
59bfde01 RD |
1547 | err = devlink_nl_put_handle(msg, devlink); |
1548 | if (err) | |
1a6aa36b | 1549 | goto nla_put_failure; |
08f4b591 | 1550 | |
4456f61c JP |
1551 | if (ops->eswitch_mode_get) { |
1552 | err = ops->eswitch_mode_get(devlink, &mode); | |
1553 | if (err) | |
1554 | goto nla_put_failure; | |
1555 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
1556 | if (err) | |
1557 | goto nla_put_failure; | |
1558 | } | |
59bfde01 RD |
1559 | |
1560 | if (ops->eswitch_inline_mode_get) { | |
1561 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
1562 | if (err) | |
1a6aa36b | 1563 | goto nla_put_failure; |
59bfde01 RD |
1564 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
1565 | inline_mode); | |
1566 | if (err) | |
1a6aa36b | 1567 | goto nla_put_failure; |
59bfde01 | 1568 | } |
08f4b591 | 1569 | |
f43e9b06 RD |
1570 | if (ops->eswitch_encap_mode_get) { |
1571 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
1572 | if (err) | |
1573 | goto nla_put_failure; | |
1574 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
1575 | if (err) | |
1576 | goto nla_put_failure; | |
1577 | } | |
1578 | ||
08f4b591 OG |
1579 | genlmsg_end(msg, hdr); |
1580 | return 0; | |
1581 | ||
1a6aa36b | 1582 | nla_put_failure: |
08f4b591 | 1583 | genlmsg_cancel(msg, hdr); |
59bfde01 | 1584 | return err; |
08f4b591 OG |
1585 | } |
1586 | ||
adf200f3 JP |
1587 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
1588 | struct genl_info *info) | |
08f4b591 OG |
1589 | { |
1590 | struct devlink *devlink = info->user_ptr[0]; | |
1591 | const struct devlink_ops *ops = devlink->ops; | |
1592 | struct sk_buff *msg; | |
08f4b591 OG |
1593 | int err; |
1594 | ||
4456f61c | 1595 | if (!ops) |
08f4b591 OG |
1596 | return -EOPNOTSUPP; |
1597 | ||
08f4b591 OG |
1598 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1599 | if (!msg) | |
1600 | return -ENOMEM; | |
1601 | ||
21e3d2dd JP |
1602 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
1603 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
1604 | |
1605 | if (err) { | |
1606 | nlmsg_free(msg); | |
1607 | return err; | |
1608 | } | |
1609 | ||
1610 | return genlmsg_reply(msg, info); | |
1611 | } | |
1612 | ||
adf200f3 JP |
1613 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
1614 | struct genl_info *info) | |
08f4b591 OG |
1615 | { |
1616 | struct devlink *devlink = info->user_ptr[0]; | |
1617 | const struct devlink_ops *ops = devlink->ops; | |
f43e9b06 | 1618 | u8 inline_mode, encap_mode; |
59bfde01 | 1619 | int err = 0; |
f43e9b06 | 1620 | u16 mode; |
08f4b591 | 1621 | |
59bfde01 RD |
1622 | if (!ops) |
1623 | return -EOPNOTSUPP; | |
08f4b591 | 1624 | |
59bfde01 RD |
1625 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
1626 | if (!ops->eswitch_mode_set) | |
1627 | return -EOPNOTSUPP; | |
1628 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
1629 | err = ops->eswitch_mode_set(devlink, mode); | |
1630 | if (err) | |
1631 | return err; | |
1632 | } | |
08f4b591 | 1633 | |
59bfde01 RD |
1634 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
1635 | if (!ops->eswitch_inline_mode_set) | |
1636 | return -EOPNOTSUPP; | |
1637 | inline_mode = nla_get_u8( | |
1638 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
1639 | err = ops->eswitch_inline_mode_set(devlink, inline_mode); | |
1640 | if (err) | |
1641 | return err; | |
1642 | } | |
f43e9b06 RD |
1643 | |
1644 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
1645 | if (!ops->eswitch_encap_mode_set) | |
1646 | return -EOPNOTSUPP; | |
1647 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
1648 | err = ops->eswitch_encap_mode_set(devlink, encap_mode); | |
1649 | if (err) | |
1650 | return err; | |
1651 | } | |
1652 | ||
1555d204 AS |
1653 | return 0; |
1654 | } | |
1655 | ||
1656 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
1657 | struct devlink_dpipe_match *match) | |
1658 | { | |
1659 | struct devlink_dpipe_header *header = match->header; | |
1660 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
1661 | struct nlattr *match_attr; | |
1662 | ||
1663 | match_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_MATCH); | |
1664 | if (!match_attr) | |
1665 | return -EMSGSIZE; | |
1666 | ||
1667 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
1668 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
1669 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1670 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1671 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1672 | goto nla_put_failure; | |
1673 | ||
1674 | nla_nest_end(skb, match_attr); | |
1675 | return 0; | |
1676 | ||
1677 | nla_put_failure: | |
1678 | nla_nest_cancel(skb, match_attr); | |
1679 | return -EMSGSIZE; | |
1680 | } | |
1681 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
1682 | ||
1683 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
1684 | struct sk_buff *skb) | |
1685 | { | |
1686 | struct nlattr *matches_attr; | |
1687 | ||
1688 | matches_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1689 | if (!matches_attr) | |
1690 | return -EMSGSIZE; | |
1691 | ||
1692 | if (table->table_ops->matches_dump(table->priv, skb)) | |
1693 | goto nla_put_failure; | |
1694 | ||
1695 | nla_nest_end(skb, matches_attr); | |
1696 | return 0; | |
1697 | ||
1698 | nla_put_failure: | |
1699 | nla_nest_cancel(skb, matches_attr); | |
1700 | return -EMSGSIZE; | |
1701 | } | |
1702 | ||
1703 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
1704 | struct devlink_dpipe_action *action) | |
1705 | { | |
1706 | struct devlink_dpipe_header *header = action->header; | |
1707 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
1708 | struct nlattr *action_attr; | |
1709 | ||
1710 | action_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ACTION); | |
1711 | if (!action_attr) | |
1712 | return -EMSGSIZE; | |
1713 | ||
1714 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
1715 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
1716 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1717 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1718 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1719 | goto nla_put_failure; | |
1720 | ||
1721 | nla_nest_end(skb, action_attr); | |
1722 | return 0; | |
1723 | ||
1724 | nla_put_failure: | |
1725 | nla_nest_cancel(skb, action_attr); | |
1726 | return -EMSGSIZE; | |
1727 | } | |
1728 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
1729 | ||
1730 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
1731 | struct sk_buff *skb) | |
1732 | { | |
1733 | struct nlattr *actions_attr; | |
1734 | ||
1735 | actions_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1736 | if (!actions_attr) | |
1737 | return -EMSGSIZE; | |
1738 | ||
1739 | if (table->table_ops->actions_dump(table->priv, skb)) | |
1740 | goto nla_put_failure; | |
1741 | ||
1742 | nla_nest_end(skb, actions_attr); | |
1743 | return 0; | |
1744 | ||
1745 | nla_put_failure: | |
1746 | nla_nest_cancel(skb, actions_attr); | |
1747 | return -EMSGSIZE; | |
1748 | } | |
1749 | ||
1750 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
1751 | struct devlink_dpipe_table *table) | |
1752 | { | |
1753 | struct nlattr *table_attr; | |
ffd3cdcc | 1754 | u64 table_size; |
1555d204 | 1755 | |
ffd3cdcc | 1756 | table_size = table->table_ops->size_get(table->priv); |
1555d204 AS |
1757 | table_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1758 | if (!table_attr) | |
1759 | return -EMSGSIZE; | |
1760 | ||
1761 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 1762 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
1763 | DEVLINK_ATTR_PAD)) |
1764 | goto nla_put_failure; | |
1765 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
1766 | table->counters_enabled)) | |
1767 | goto nla_put_failure; | |
1768 | ||
56dc7cd0 | 1769 | if (table->resource_valid) { |
3d18e4f1 AS |
1770 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
1771 | table->resource_id, DEVLINK_ATTR_PAD) || | |
1772 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
1773 | table->resource_units, DEVLINK_ATTR_PAD)) | |
1774 | goto nla_put_failure; | |
56dc7cd0 | 1775 | } |
1555d204 AS |
1776 | if (devlink_dpipe_matches_put(table, skb)) |
1777 | goto nla_put_failure; | |
1778 | ||
1779 | if (devlink_dpipe_actions_put(table, skb)) | |
1780 | goto nla_put_failure; | |
1781 | ||
1782 | nla_nest_end(skb, table_attr); | |
1783 | return 0; | |
1784 | ||
1785 | nla_put_failure: | |
1786 | nla_nest_cancel(skb, table_attr); | |
1787 | return -EMSGSIZE; | |
1788 | } | |
1789 | ||
1790 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
1791 | struct genl_info *info) | |
1792 | { | |
1793 | int err; | |
1794 | ||
1795 | if (*pskb) { | |
1796 | err = genlmsg_reply(*pskb, info); | |
1797 | if (err) | |
1798 | return err; | |
1799 | } | |
1800 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1801 | if (!*pskb) | |
1802 | return -ENOMEM; | |
1803 | return 0; | |
1804 | } | |
1805 | ||
1806 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
1807 | enum devlink_command cmd, int flags, | |
1808 | struct list_head *dpipe_tables, | |
1809 | const char *table_name) | |
1810 | { | |
1811 | struct devlink *devlink = info->user_ptr[0]; | |
1812 | struct devlink_dpipe_table *table; | |
1813 | struct nlattr *tables_attr; | |
1814 | struct sk_buff *skb = NULL; | |
1815 | struct nlmsghdr *nlh; | |
1816 | bool incomplete; | |
1817 | void *hdr; | |
1818 | int i; | |
1819 | int err; | |
1820 | ||
1821 | table = list_first_entry(dpipe_tables, | |
1822 | struct devlink_dpipe_table, list); | |
1823 | start_again: | |
1824 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1825 | if (err) | |
1826 | return err; | |
1827 | ||
1828 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1829 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
1830 | if (!hdr) { |
1831 | nlmsg_free(skb); | |
1555d204 | 1832 | return -EMSGSIZE; |
6044bd4a | 1833 | } |
1555d204 AS |
1834 | |
1835 | if (devlink_nl_put_handle(skb, devlink)) | |
1836 | goto nla_put_failure; | |
1837 | tables_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLES); | |
1838 | if (!tables_attr) | |
1839 | goto nla_put_failure; | |
1840 | ||
1841 | i = 0; | |
1842 | incomplete = false; | |
1843 | list_for_each_entry_from(table, dpipe_tables, list) { | |
1844 | if (!table_name) { | |
1845 | err = devlink_dpipe_table_put(skb, table); | |
1846 | if (err) { | |
1847 | if (!i) | |
1848 | goto err_table_put; | |
1849 | incomplete = true; | |
1850 | break; | |
1851 | } | |
1852 | } else { | |
1853 | if (!strcmp(table->name, table_name)) { | |
1854 | err = devlink_dpipe_table_put(skb, table); | |
1855 | if (err) | |
1856 | break; | |
1857 | } | |
1858 | } | |
1859 | i++; | |
1860 | } | |
1861 | ||
1862 | nla_nest_end(skb, tables_attr); | |
1863 | genlmsg_end(skb, hdr); | |
1864 | if (incomplete) | |
1865 | goto start_again; | |
1866 | ||
1867 | send_done: | |
1868 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1869 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
1870 | if (!nlh) { | |
1871 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1872 | if (err) | |
7fe4d6dc | 1873 | return err; |
1555d204 AS |
1874 | goto send_done; |
1875 | } | |
1876 | ||
1877 | return genlmsg_reply(skb, info); | |
1878 | ||
1879 | nla_put_failure: | |
1880 | err = -EMSGSIZE; | |
1881 | err_table_put: | |
1555d204 AS |
1882 | nlmsg_free(skb); |
1883 | return err; | |
1884 | } | |
1885 | ||
1886 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
1887 | struct genl_info *info) | |
1888 | { | |
1889 | struct devlink *devlink = info->user_ptr[0]; | |
1890 | const char *table_name = NULL; | |
1891 | ||
1892 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
1893 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
1894 | ||
1895 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
1896 | &devlink->dpipe_table_list, | |
1897 | table_name); | |
1898 | } | |
1899 | ||
1900 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
1901 | struct devlink_dpipe_value *value) | |
1902 | { | |
1903 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
1904 | value->value_size, value->value)) | |
1905 | return -EMSGSIZE; | |
1906 | if (value->mask) | |
1907 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
1908 | value->value_size, value->mask)) | |
1909 | return -EMSGSIZE; | |
1910 | if (value->mapping_valid) | |
1911 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
1912 | value->mapping_value)) | |
1913 | return -EMSGSIZE; | |
1914 | return 0; | |
1915 | } | |
1916 | ||
1917 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
1918 | struct devlink_dpipe_value *value) | |
1919 | { | |
1920 | if (!value->action) | |
1921 | return -EINVAL; | |
1922 | if (devlink_dpipe_action_put(skb, value->action)) | |
1923 | return -EMSGSIZE; | |
1924 | if (devlink_dpipe_value_put(skb, value)) | |
1925 | return -EMSGSIZE; | |
1926 | return 0; | |
1927 | } | |
1928 | ||
1929 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
1930 | struct devlink_dpipe_value *values, | |
1931 | unsigned int values_count) | |
1932 | { | |
1933 | struct nlattr *action_attr; | |
1934 | int i; | |
1935 | int err; | |
1936 | ||
1937 | for (i = 0; i < values_count; i++) { | |
1938 | action_attr = nla_nest_start(skb, | |
1939 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1940 | if (!action_attr) | |
1941 | return -EMSGSIZE; | |
1942 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
1943 | if (err) | |
1944 | goto err_action_value_put; | |
1945 | nla_nest_end(skb, action_attr); | |
1946 | } | |
1947 | return 0; | |
1948 | ||
1949 | err_action_value_put: | |
1950 | nla_nest_cancel(skb, action_attr); | |
1951 | return err; | |
1952 | } | |
1953 | ||
1954 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
1955 | struct devlink_dpipe_value *value) | |
1956 | { | |
1957 | if (!value->match) | |
1958 | return -EINVAL; | |
1959 | if (devlink_dpipe_match_put(skb, value->match)) | |
1960 | return -EMSGSIZE; | |
1961 | if (devlink_dpipe_value_put(skb, value)) | |
1962 | return -EMSGSIZE; | |
1963 | return 0; | |
1964 | } | |
1965 | ||
1966 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
1967 | struct devlink_dpipe_value *values, | |
1968 | unsigned int values_count) | |
1969 | { | |
1970 | struct nlattr *match_attr; | |
1971 | int i; | |
1972 | int err; | |
1973 | ||
1974 | for (i = 0; i < values_count; i++) { | |
1975 | match_attr = nla_nest_start(skb, | |
1976 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1977 | if (!match_attr) | |
1978 | return -EMSGSIZE; | |
1979 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
1980 | if (err) | |
1981 | goto err_match_value_put; | |
1982 | nla_nest_end(skb, match_attr); | |
1983 | } | |
1984 | return 0; | |
1985 | ||
1986 | err_match_value_put: | |
1987 | nla_nest_cancel(skb, match_attr); | |
1988 | return err; | |
1989 | } | |
1990 | ||
1991 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
1992 | struct devlink_dpipe_entry *entry) | |
1993 | { | |
1994 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
1995 | int err; | |
1996 | ||
1997 | entry_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ENTRY); | |
1998 | if (!entry_attr) | |
1999 | return -EMSGSIZE; | |
2000 | ||
2001 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
2002 | DEVLINK_ATTR_PAD)) | |
2003 | goto nla_put_failure; | |
2004 | if (entry->counter_valid) | |
2005 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
2006 | entry->counter, DEVLINK_ATTR_PAD)) | |
2007 | goto nla_put_failure; | |
2008 | ||
2009 | matches_attr = nla_nest_start(skb, | |
2010 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
2011 | if (!matches_attr) | |
2012 | goto nla_put_failure; | |
2013 | ||
2014 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
2015 | entry->match_values_count); | |
2016 | if (err) { | |
2017 | nla_nest_cancel(skb, matches_attr); | |
2018 | goto err_match_values_put; | |
2019 | } | |
2020 | nla_nest_end(skb, matches_attr); | |
2021 | ||
2022 | actions_attr = nla_nest_start(skb, | |
2023 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
2024 | if (!actions_attr) | |
2025 | goto nla_put_failure; | |
2026 | ||
2027 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
2028 | entry->action_values_count); | |
2029 | if (err) { | |
2030 | nla_nest_cancel(skb, actions_attr); | |
2031 | goto err_action_values_put; | |
2032 | } | |
2033 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 2034 | |
1555d204 | 2035 | nla_nest_end(skb, entry_attr); |
59bfde01 | 2036 | return 0; |
1555d204 AS |
2037 | |
2038 | nla_put_failure: | |
2039 | err = -EMSGSIZE; | |
2040 | err_match_values_put: | |
2041 | err_action_values_put: | |
2042 | nla_nest_cancel(skb, entry_attr); | |
2043 | return err; | |
2044 | } | |
2045 | ||
2046 | static struct devlink_dpipe_table * | |
2047 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2048 | const char *table_name) | |
2049 | { | |
2050 | struct devlink_dpipe_table *table; | |
2051 | ||
2052 | list_for_each_entry_rcu(table, dpipe_tables, list) { | |
2053 | if (!strcmp(table->name, table_name)) | |
2054 | return table; | |
2055 | } | |
2056 | return NULL; | |
2057 | } | |
2058 | ||
2059 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2060 | { | |
2061 | struct devlink *devlink; | |
2062 | int err; | |
2063 | ||
2064 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
2065 | dump_ctx->info); | |
2066 | if (err) | |
2067 | return err; | |
2068 | ||
2069 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
2070 | dump_ctx->info->snd_portid, | |
2071 | dump_ctx->info->snd_seq, | |
2072 | &devlink_nl_family, NLM_F_MULTI, | |
2073 | dump_ctx->cmd); | |
2074 | if (!dump_ctx->hdr) | |
2075 | goto nla_put_failure; | |
2076 | ||
2077 | devlink = dump_ctx->info->user_ptr[0]; | |
2078 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
2079 | goto nla_put_failure; | |
2080 | dump_ctx->nest = nla_nest_start(dump_ctx->skb, | |
2081 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
2082 | if (!dump_ctx->nest) | |
2083 | goto nla_put_failure; | |
2084 | return 0; | |
2085 | ||
2086 | nla_put_failure: | |
1555d204 AS |
2087 | nlmsg_free(dump_ctx->skb); |
2088 | return -EMSGSIZE; | |
2089 | } | |
2090 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
2091 | ||
2092 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
2093 | struct devlink_dpipe_entry *entry) | |
2094 | { | |
2095 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
2096 | } | |
2097 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
2098 | ||
2099 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2100 | { | |
2101 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
2102 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
2103 | return 0; | |
2104 | } | |
2105 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
2106 | ||
35807324 AS |
2107 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
2108 | ||
2109 | { | |
2110 | unsigned int value_count, value_index; | |
2111 | struct devlink_dpipe_value *value; | |
2112 | ||
2113 | value = entry->action_values; | |
2114 | value_count = entry->action_values_count; | |
2115 | for (value_index = 0; value_index < value_count; value_index++) { | |
2116 | kfree(value[value_index].value); | |
2117 | kfree(value[value_index].mask); | |
2118 | } | |
2119 | ||
2120 | value = entry->match_values; | |
2121 | value_count = entry->match_values_count; | |
2122 | for (value_index = 0; value_index < value_count; value_index++) { | |
2123 | kfree(value[value_index].value); | |
2124 | kfree(value[value_index].mask); | |
2125 | } | |
2126 | } | |
2127 | EXPORT_SYMBOL(devlink_dpipe_entry_clear); | |
2128 | ||
1555d204 AS |
2129 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
2130 | enum devlink_command cmd, int flags, | |
2131 | struct devlink_dpipe_table *table) | |
2132 | { | |
2133 | struct devlink_dpipe_dump_ctx dump_ctx; | |
2134 | struct nlmsghdr *nlh; | |
2135 | int err; | |
2136 | ||
2137 | dump_ctx.skb = NULL; | |
2138 | dump_ctx.cmd = cmd; | |
2139 | dump_ctx.info = info; | |
2140 | ||
2141 | err = table->table_ops->entries_dump(table->priv, | |
2142 | table->counters_enabled, | |
2143 | &dump_ctx); | |
2144 | if (err) | |
7fe4d6dc | 2145 | return err; |
1555d204 AS |
2146 | |
2147 | send_done: | |
2148 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
2149 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2150 | if (!nlh) { | |
2151 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
2152 | if (err) | |
7fe4d6dc | 2153 | return err; |
1555d204 AS |
2154 | goto send_done; |
2155 | } | |
2156 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
2157 | } |
2158 | ||
2159 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
2160 | struct genl_info *info) | |
2161 | { | |
2162 | struct devlink *devlink = info->user_ptr[0]; | |
2163 | struct devlink_dpipe_table *table; | |
2164 | const char *table_name; | |
2165 | ||
2166 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
2167 | return -EINVAL; | |
2168 | ||
2169 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2170 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2171 | table_name); | |
2172 | if (!table) | |
2173 | return -EINVAL; | |
2174 | ||
2175 | if (!table->table_ops->entries_dump) | |
2176 | return -EINVAL; | |
2177 | ||
2178 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
2179 | 0, table); | |
2180 | } | |
2181 | ||
2182 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
2183 | const struct devlink_dpipe_header *header) | |
2184 | { | |
2185 | struct devlink_dpipe_field *field; | |
2186 | struct nlattr *field_attr; | |
2187 | int i; | |
2188 | ||
2189 | for (i = 0; i < header->fields_count; i++) { | |
2190 | field = &header->fields[i]; | |
2191 | field_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_FIELD); | |
2192 | if (!field_attr) | |
2193 | return -EMSGSIZE; | |
2194 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
2195 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
2196 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
2197 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
2198 | goto nla_put_failure; | |
2199 | nla_nest_end(skb, field_attr); | |
2200 | } | |
2201 | return 0; | |
2202 | ||
2203 | nla_put_failure: | |
2204 | nla_nest_cancel(skb, field_attr); | |
2205 | return -EMSGSIZE; | |
2206 | } | |
2207 | ||
2208 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
2209 | struct devlink_dpipe_header *header) | |
2210 | { | |
2211 | struct nlattr *fields_attr, *header_attr; | |
2212 | int err; | |
2213 | ||
2214 | header_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER); | |
cb6bf9cf | 2215 | if (!header_attr) |
1555d204 AS |
2216 | return -EMSGSIZE; |
2217 | ||
2218 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
2219 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
2220 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
2221 | goto nla_put_failure; | |
2222 | ||
2223 | fields_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
2224 | if (!fields_attr) | |
2225 | goto nla_put_failure; | |
2226 | ||
2227 | err = devlink_dpipe_fields_put(skb, header); | |
2228 | if (err) { | |
2229 | nla_nest_cancel(skb, fields_attr); | |
2230 | goto nla_put_failure; | |
2231 | } | |
2232 | nla_nest_end(skb, fields_attr); | |
2233 | nla_nest_end(skb, header_attr); | |
2234 | return 0; | |
2235 | ||
2236 | nla_put_failure: | |
2237 | err = -EMSGSIZE; | |
2238 | nla_nest_cancel(skb, header_attr); | |
2239 | return err; | |
2240 | } | |
2241 | ||
2242 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
2243 | enum devlink_command cmd, int flags, | |
2244 | struct devlink_dpipe_headers * | |
2245 | dpipe_headers) | |
2246 | { | |
2247 | struct devlink *devlink = info->user_ptr[0]; | |
2248 | struct nlattr *headers_attr; | |
2249 | struct sk_buff *skb = NULL; | |
2250 | struct nlmsghdr *nlh; | |
2251 | void *hdr; | |
2252 | int i, j; | |
2253 | int err; | |
2254 | ||
2255 | i = 0; | |
2256 | start_again: | |
2257 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2258 | if (err) | |
2259 | return err; | |
2260 | ||
2261 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2262 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
2263 | if (!hdr) { |
2264 | nlmsg_free(skb); | |
1555d204 | 2265 | return -EMSGSIZE; |
6044bd4a | 2266 | } |
1555d204 AS |
2267 | |
2268 | if (devlink_nl_put_handle(skb, devlink)) | |
2269 | goto nla_put_failure; | |
2270 | headers_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADERS); | |
2271 | if (!headers_attr) | |
2272 | goto nla_put_failure; | |
2273 | ||
2274 | j = 0; | |
2275 | for (; i < dpipe_headers->headers_count; i++) { | |
2276 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
2277 | if (err) { | |
2278 | if (!j) | |
2279 | goto err_table_put; | |
2280 | break; | |
2281 | } | |
2282 | j++; | |
2283 | } | |
2284 | nla_nest_end(skb, headers_attr); | |
2285 | genlmsg_end(skb, hdr); | |
2286 | if (i != dpipe_headers->headers_count) | |
2287 | goto start_again; | |
2288 | ||
2289 | send_done: | |
2290 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2291 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2292 | if (!nlh) { | |
2293 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2294 | if (err) | |
7fe4d6dc | 2295 | return err; |
1555d204 AS |
2296 | goto send_done; |
2297 | } | |
2298 | return genlmsg_reply(skb, info); | |
2299 | ||
2300 | nla_put_failure: | |
2301 | err = -EMSGSIZE; | |
2302 | err_table_put: | |
1555d204 AS |
2303 | nlmsg_free(skb); |
2304 | return err; | |
2305 | } | |
2306 | ||
2307 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
2308 | struct genl_info *info) | |
2309 | { | |
2310 | struct devlink *devlink = info->user_ptr[0]; | |
2311 | ||
2312 | if (!devlink->dpipe_headers) | |
2313 | return -EOPNOTSUPP; | |
2314 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
2315 | 0, devlink->dpipe_headers); | |
2316 | } | |
2317 | ||
2318 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
2319 | const char *table_name, | |
2320 | bool enable) | |
2321 | { | |
2322 | struct devlink_dpipe_table *table; | |
2323 | ||
2324 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2325 | table_name); | |
2326 | if (!table) | |
2327 | return -EINVAL; | |
2328 | ||
2329 | if (table->counter_control_extern) | |
2330 | return -EOPNOTSUPP; | |
2331 | ||
2332 | if (!(table->counters_enabled ^ enable)) | |
2333 | return 0; | |
2334 | ||
2335 | table->counters_enabled = enable; | |
2336 | if (table->table_ops->counters_set_update) | |
2337 | table->table_ops->counters_set_update(table->priv, enable); | |
2338 | return 0; | |
2339 | } | |
2340 | ||
2341 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
2342 | struct genl_info *info) | |
2343 | { | |
2344 | struct devlink *devlink = info->user_ptr[0]; | |
2345 | const char *table_name; | |
2346 | bool counters_enable; | |
2347 | ||
2348 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
2349 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
2350 | return -EINVAL; | |
2351 | ||
2352 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2353 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
2354 | ||
2355 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
2356 | counters_enable); | |
08f4b591 OG |
2357 | } |
2358 | ||
43dd7512 | 2359 | static struct devlink_resource * |
d9f9b9a4 AS |
2360 | devlink_resource_find(struct devlink *devlink, |
2361 | struct devlink_resource *resource, u64 resource_id) | |
2362 | { | |
2363 | struct list_head *resource_list; | |
2364 | ||
2365 | if (resource) | |
2366 | resource_list = &resource->resource_list; | |
2367 | else | |
2368 | resource_list = &devlink->resource_list; | |
2369 | ||
2370 | list_for_each_entry(resource, resource_list, list) { | |
2371 | struct devlink_resource *child_resource; | |
2372 | ||
2373 | if (resource->id == resource_id) | |
2374 | return resource; | |
2375 | ||
2376 | child_resource = devlink_resource_find(devlink, resource, | |
2377 | resource_id); | |
2378 | if (child_resource) | |
2379 | return child_resource; | |
2380 | } | |
2381 | return NULL; | |
2382 | } | |
2383 | ||
43dd7512 WY |
2384 | static void |
2385 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
2386 | { |
2387 | struct devlink_resource *child_resource; | |
2388 | bool size_valid = true; | |
2389 | u64 parts_size = 0; | |
2390 | ||
2391 | if (list_empty(&resource->resource_list)) | |
2392 | goto out; | |
2393 | ||
2394 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
2395 | parts_size += child_resource->size_new; | |
2396 | ||
b9d17175 | 2397 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
2398 | size_valid = false; |
2399 | out: | |
2400 | resource->size_valid = size_valid; | |
2401 | } | |
2402 | ||
cc944ead AS |
2403 | static int |
2404 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
2405 | struct netlink_ext_ack *extack) | |
2406 | { | |
2407 | u64 reminder; | |
2408 | int err = 0; | |
2409 | ||
0f3e9c97 | 2410 | if (size > resource->size_params.size_max) { |
cc944ead AS |
2411 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
2412 | err = -EINVAL; | |
2413 | } | |
2414 | ||
0f3e9c97 | 2415 | if (size < resource->size_params.size_min) { |
cc944ead AS |
2416 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
2417 | err = -EINVAL; | |
2418 | } | |
2419 | ||
0f3e9c97 | 2420 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
2421 | if (reminder) { |
2422 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
2423 | err = -EINVAL; | |
2424 | } | |
2425 | ||
2426 | return err; | |
2427 | } | |
2428 | ||
d9f9b9a4 AS |
2429 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
2430 | struct genl_info *info) | |
2431 | { | |
2432 | struct devlink *devlink = info->user_ptr[0]; | |
2433 | struct devlink_resource *resource; | |
2434 | u64 resource_id; | |
2435 | u64 size; | |
2436 | int err; | |
2437 | ||
2438 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || | |
2439 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) | |
2440 | return -EINVAL; | |
2441 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
2442 | ||
2443 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
2444 | if (!resource) | |
2445 | return -EINVAL; | |
2446 | ||
d9f9b9a4 | 2447 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 2448 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
2449 | if (err) |
2450 | return err; | |
2451 | ||
2452 | resource->size_new = size; | |
2453 | devlink_resource_validate_children(resource); | |
2454 | if (resource->parent) | |
2455 | devlink_resource_validate_children(resource->parent); | |
2456 | return 0; | |
2457 | } | |
2458 | ||
3d18e4f1 | 2459 | static int |
d9f9b9a4 AS |
2460 | devlink_resource_size_params_put(struct devlink_resource *resource, |
2461 | struct sk_buff *skb) | |
2462 | { | |
2463 | struct devlink_resource_size_params *size_params; | |
2464 | ||
77d27096 | 2465 | size_params = &resource->size_params; |
3d18e4f1 AS |
2466 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
2467 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
2468 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
2469 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
2470 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
2471 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
2472 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
2473 | return -EMSGSIZE; | |
2474 | return 0; | |
d9f9b9a4 AS |
2475 | } |
2476 | ||
fc56be47 JP |
2477 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
2478 | struct sk_buff *skb) | |
2479 | { | |
2480 | if (!resource->occ_get) | |
2481 | return 0; | |
2482 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
2483 | resource->occ_get(resource->occ_get_priv), | |
2484 | DEVLINK_ATTR_PAD); | |
2485 | } | |
2486 | ||
d9f9b9a4 AS |
2487 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
2488 | struct devlink_resource *resource) | |
2489 | { | |
2490 | struct devlink_resource *child_resource; | |
2491 | struct nlattr *child_resource_attr; | |
2492 | struct nlattr *resource_attr; | |
2493 | ||
2494 | resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE); | |
2495 | if (!resource_attr) | |
2496 | return -EMSGSIZE; | |
2497 | ||
2498 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
2499 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
2500 | DEVLINK_ATTR_PAD) || | |
2501 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
2502 | DEVLINK_ATTR_PAD)) | |
2503 | goto nla_put_failure; | |
2504 | if (resource->size != resource->size_new) | |
2505 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
2506 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
2507 | if (devlink_resource_occ_put(resource, skb)) |
2508 | goto nla_put_failure; | |
3d18e4f1 AS |
2509 | if (devlink_resource_size_params_put(resource, skb)) |
2510 | goto nla_put_failure; | |
d9f9b9a4 AS |
2511 | if (list_empty(&resource->resource_list)) |
2512 | goto out; | |
2513 | ||
2514 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
2515 | resource->size_valid)) | |
2516 | goto nla_put_failure; | |
2517 | ||
2518 | child_resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST); | |
2519 | if (!child_resource_attr) | |
2520 | goto nla_put_failure; | |
2521 | ||
2522 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
2523 | if (devlink_resource_put(devlink, skb, child_resource)) | |
2524 | goto resource_put_failure; | |
2525 | } | |
2526 | ||
2527 | nla_nest_end(skb, child_resource_attr); | |
2528 | out: | |
2529 | nla_nest_end(skb, resource_attr); | |
2530 | return 0; | |
2531 | ||
2532 | resource_put_failure: | |
2533 | nla_nest_cancel(skb, child_resource_attr); | |
2534 | nla_put_failure: | |
2535 | nla_nest_cancel(skb, resource_attr); | |
2536 | return -EMSGSIZE; | |
2537 | } | |
2538 | ||
2539 | static int devlink_resource_fill(struct genl_info *info, | |
2540 | enum devlink_command cmd, int flags) | |
2541 | { | |
2542 | struct devlink *devlink = info->user_ptr[0]; | |
2543 | struct devlink_resource *resource; | |
2544 | struct nlattr *resources_attr; | |
2545 | struct sk_buff *skb = NULL; | |
2546 | struct nlmsghdr *nlh; | |
2547 | bool incomplete; | |
2548 | void *hdr; | |
2549 | int i; | |
2550 | int err; | |
2551 | ||
2552 | resource = list_first_entry(&devlink->resource_list, | |
2553 | struct devlink_resource, list); | |
2554 | start_again: | |
2555 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2556 | if (err) | |
2557 | return err; | |
2558 | ||
2559 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2560 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
2561 | if (!hdr) { | |
2562 | nlmsg_free(skb); | |
2563 | return -EMSGSIZE; | |
2564 | } | |
2565 | ||
2566 | if (devlink_nl_put_handle(skb, devlink)) | |
2567 | goto nla_put_failure; | |
2568 | ||
2569 | resources_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST); | |
2570 | if (!resources_attr) | |
2571 | goto nla_put_failure; | |
2572 | ||
2573 | incomplete = false; | |
2574 | i = 0; | |
2575 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
2576 | err = devlink_resource_put(devlink, skb, resource); | |
2577 | if (err) { | |
2578 | if (!i) | |
2579 | goto err_resource_put; | |
2580 | incomplete = true; | |
2581 | break; | |
2582 | } | |
2583 | i++; | |
2584 | } | |
2585 | nla_nest_end(skb, resources_attr); | |
2586 | genlmsg_end(skb, hdr); | |
2587 | if (incomplete) | |
2588 | goto start_again; | |
2589 | send_done: | |
2590 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2591 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2592 | if (!nlh) { | |
2593 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2594 | if (err) | |
2595 | goto err_skb_send_alloc; | |
2596 | goto send_done; | |
2597 | } | |
2598 | return genlmsg_reply(skb, info); | |
2599 | ||
2600 | nla_put_failure: | |
2601 | err = -EMSGSIZE; | |
2602 | err_resource_put: | |
2603 | err_skb_send_alloc: | |
d9f9b9a4 AS |
2604 | nlmsg_free(skb); |
2605 | return err; | |
2606 | } | |
2607 | ||
2608 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
2609 | struct genl_info *info) | |
2610 | { | |
2611 | struct devlink *devlink = info->user_ptr[0]; | |
2612 | ||
2613 | if (list_empty(&devlink->resource_list)) | |
2614 | return -EOPNOTSUPP; | |
2615 | ||
2616 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
2617 | } | |
2618 | ||
2d8dc5bb AS |
2619 | static int |
2620 | devlink_resources_validate(struct devlink *devlink, | |
2621 | struct devlink_resource *resource, | |
2622 | struct genl_info *info) | |
2623 | { | |
2624 | struct list_head *resource_list; | |
2625 | int err = 0; | |
2626 | ||
2627 | if (resource) | |
2628 | resource_list = &resource->resource_list; | |
2629 | else | |
2630 | resource_list = &devlink->resource_list; | |
2631 | ||
2632 | list_for_each_entry(resource, resource_list, list) { | |
2633 | if (!resource->size_valid) | |
2634 | return -EINVAL; | |
2635 | err = devlink_resources_validate(devlink, resource, info); | |
2636 | if (err) | |
2637 | return err; | |
2638 | } | |
2639 | return err; | |
2640 | } | |
2641 | ||
2642 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) | |
2643 | { | |
2644 | struct devlink *devlink = info->user_ptr[0]; | |
2645 | int err; | |
2646 | ||
2647 | if (!devlink->ops->reload) | |
2648 | return -EOPNOTSUPP; | |
2649 | ||
2650 | err = devlink_resources_validate(devlink, NULL, info); | |
2651 | if (err) { | |
2652 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
2653 | return err; | |
2654 | } | |
ac0fc8a1 | 2655 | return devlink->ops->reload(devlink, info->extack); |
2d8dc5bb AS |
2656 | } |
2657 | ||
036467c3 MS |
2658 | static const struct devlink_param devlink_param_generic[] = { |
2659 | { | |
2660 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
2661 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
2662 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
2663 | }, | |
2664 | { | |
2665 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
2666 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
2667 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
2668 | }, | |
f567bcda VV |
2669 | { |
2670 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
2671 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
2672 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
2673 | }, | |
036467c3 | 2674 | }; |
eabaef18 MS |
2675 | |
2676 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
2677 | { | |
2678 | /* verify it match generic parameter by id and name */ | |
2679 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
2680 | return -EINVAL; | |
2681 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
2682 | return -ENOENT; | |
2683 | ||
2684 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
2685 | ||
2686 | return 0; | |
2687 | } | |
2688 | ||
2689 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
2690 | { | |
2691 | int i; | |
2692 | ||
2693 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
2694 | return -EINVAL; | |
2695 | /* verify no such name in generic params */ | |
2696 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
2697 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
2698 | return -EEXIST; | |
2699 | ||
2700 | return 0; | |
2701 | } | |
2702 | ||
2703 | static struct devlink_param_item * | |
2704 | devlink_param_find_by_name(struct list_head *param_list, | |
2705 | const char *param_name) | |
2706 | { | |
2707 | struct devlink_param_item *param_item; | |
2708 | ||
2709 | list_for_each_entry(param_item, param_list, list) | |
2710 | if (!strcmp(param_item->param->name, param_name)) | |
2711 | return param_item; | |
2712 | return NULL; | |
2713 | } | |
2714 | ||
ec01aeb1 MS |
2715 | static struct devlink_param_item * |
2716 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
2717 | { | |
2718 | struct devlink_param_item *param_item; | |
2719 | ||
2720 | list_for_each_entry(param_item, param_list, list) | |
2721 | if (param_item->param->id == param_id) | |
2722 | return param_item; | |
2723 | return NULL; | |
2724 | } | |
2725 | ||
45f05def MS |
2726 | static bool |
2727 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
2728 | enum devlink_param_cmode cmode) | |
2729 | { | |
2730 | return test_bit(cmode, ¶m->supported_cmodes); | |
2731 | } | |
2732 | ||
2733 | static int devlink_param_get(struct devlink *devlink, | |
2734 | const struct devlink_param *param, | |
2735 | struct devlink_param_gset_ctx *ctx) | |
2736 | { | |
2737 | if (!param->get) | |
2738 | return -EOPNOTSUPP; | |
2739 | return param->get(devlink, param->id, ctx); | |
2740 | } | |
2741 | ||
e3b7ca18 MS |
2742 | static int devlink_param_set(struct devlink *devlink, |
2743 | const struct devlink_param *param, | |
2744 | struct devlink_param_gset_ctx *ctx) | |
2745 | { | |
2746 | if (!param->set) | |
2747 | return -EOPNOTSUPP; | |
2748 | return param->set(devlink, param->id, ctx); | |
2749 | } | |
2750 | ||
45f05def MS |
2751 | static int |
2752 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
2753 | { | |
2754 | switch (param_type) { | |
2755 | case DEVLINK_PARAM_TYPE_U8: | |
2756 | return NLA_U8; | |
2757 | case DEVLINK_PARAM_TYPE_U16: | |
2758 | return NLA_U16; | |
2759 | case DEVLINK_PARAM_TYPE_U32: | |
2760 | return NLA_U32; | |
2761 | case DEVLINK_PARAM_TYPE_STRING: | |
2762 | return NLA_STRING; | |
2763 | case DEVLINK_PARAM_TYPE_BOOL: | |
2764 | return NLA_FLAG; | |
2765 | default: | |
2766 | return -EINVAL; | |
2767 | } | |
2768 | } | |
2769 | ||
2770 | static int | |
2771 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
2772 | enum devlink_param_type type, | |
2773 | enum devlink_param_cmode cmode, | |
2774 | union devlink_param_value val) | |
2775 | { | |
2776 | struct nlattr *param_value_attr; | |
2777 | ||
2778 | param_value_attr = nla_nest_start(msg, DEVLINK_ATTR_PARAM_VALUE); | |
2779 | if (!param_value_attr) | |
2780 | goto nla_put_failure; | |
2781 | ||
2782 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
2783 | goto value_nest_cancel; | |
2784 | ||
2785 | switch (type) { | |
2786 | case DEVLINK_PARAM_TYPE_U8: | |
2787 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
2788 | goto value_nest_cancel; | |
2789 | break; | |
2790 | case DEVLINK_PARAM_TYPE_U16: | |
2791 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
2792 | goto value_nest_cancel; | |
2793 | break; | |
2794 | case DEVLINK_PARAM_TYPE_U32: | |
2795 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
2796 | goto value_nest_cancel; | |
2797 | break; | |
2798 | case DEVLINK_PARAM_TYPE_STRING: | |
2799 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
2800 | val.vstr)) | |
2801 | goto value_nest_cancel; | |
2802 | break; | |
2803 | case DEVLINK_PARAM_TYPE_BOOL: | |
2804 | if (val.vbool && | |
2805 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
2806 | goto value_nest_cancel; | |
2807 | break; | |
2808 | } | |
2809 | ||
2810 | nla_nest_end(msg, param_value_attr); | |
2811 | return 0; | |
2812 | ||
2813 | value_nest_cancel: | |
2814 | nla_nest_cancel(msg, param_value_attr); | |
2815 | nla_put_failure: | |
2816 | return -EMSGSIZE; | |
2817 | } | |
2818 | ||
2819 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
2820 | struct devlink_param_item *param_item, | |
2821 | enum devlink_command cmd, | |
2822 | u32 portid, u32 seq, int flags) | |
2823 | { | |
2824 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
2825 | const struct devlink_param *param = param_item->param; | |
2826 | struct devlink_param_gset_ctx ctx; | |
2827 | struct nlattr *param_values_list; | |
2828 | struct nlattr *param_attr; | |
2829 | int nla_type; | |
2830 | void *hdr; | |
2831 | int err; | |
2832 | int i; | |
2833 | ||
2834 | /* Get value from driver part to driverinit configuration mode */ | |
2835 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
2836 | if (!devlink_param_cmode_is_supported(param, i)) | |
2837 | continue; | |
2838 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
2839 | if (!param_item->driverinit_value_valid) | |
2840 | return -EOPNOTSUPP; | |
2841 | param_value[i] = param_item->driverinit_value; | |
2842 | } else { | |
2843 | ctx.cmode = i; | |
2844 | err = devlink_param_get(devlink, param, &ctx); | |
2845 | if (err) | |
2846 | return err; | |
2847 | param_value[i] = ctx.val; | |
2848 | } | |
2849 | } | |
2850 | ||
2851 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2852 | if (!hdr) | |
2853 | return -EMSGSIZE; | |
2854 | ||
2855 | if (devlink_nl_put_handle(msg, devlink)) | |
2856 | goto genlmsg_cancel; | |
2857 | param_attr = nla_nest_start(msg, DEVLINK_ATTR_PARAM); | |
2858 | if (!param_attr) | |
2859 | goto genlmsg_cancel; | |
2860 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
2861 | goto param_nest_cancel; | |
2862 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
2863 | goto param_nest_cancel; | |
2864 | ||
2865 | nla_type = devlink_param_type_to_nla_type(param->type); | |
2866 | if (nla_type < 0) | |
2867 | goto param_nest_cancel; | |
2868 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
2869 | goto param_nest_cancel; | |
2870 | ||
2871 | param_values_list = nla_nest_start(msg, DEVLINK_ATTR_PARAM_VALUES_LIST); | |
2872 | if (!param_values_list) | |
2873 | goto param_nest_cancel; | |
2874 | ||
2875 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
2876 | if (!devlink_param_cmode_is_supported(param, i)) | |
2877 | continue; | |
2878 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
2879 | i, param_value[i]); | |
2880 | if (err) | |
2881 | goto values_list_nest_cancel; | |
2882 | } | |
2883 | ||
2884 | nla_nest_end(msg, param_values_list); | |
2885 | nla_nest_end(msg, param_attr); | |
2886 | genlmsg_end(msg, hdr); | |
2887 | return 0; | |
2888 | ||
2889 | values_list_nest_cancel: | |
2890 | nla_nest_end(msg, param_values_list); | |
2891 | param_nest_cancel: | |
2892 | nla_nest_cancel(msg, param_attr); | |
2893 | genlmsg_cancel: | |
2894 | genlmsg_cancel(msg, hdr); | |
2895 | return -EMSGSIZE; | |
2896 | } | |
2897 | ||
ea601e17 MS |
2898 | static void devlink_param_notify(struct devlink *devlink, |
2899 | struct devlink_param_item *param_item, | |
2900 | enum devlink_command cmd) | |
2901 | { | |
2902 | struct sk_buff *msg; | |
2903 | int err; | |
2904 | ||
2905 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL); | |
2906 | ||
2907 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2908 | if (!msg) | |
2909 | return; | |
2910 | err = devlink_nl_param_fill(msg, devlink, param_item, cmd, 0, 0, 0); | |
2911 | if (err) { | |
2912 | nlmsg_free(msg); | |
2913 | return; | |
2914 | } | |
2915 | ||
2916 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2917 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2918 | } | |
2919 | ||
45f05def MS |
2920 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
2921 | struct netlink_callback *cb) | |
2922 | { | |
2923 | struct devlink_param_item *param_item; | |
2924 | struct devlink *devlink; | |
2925 | int start = cb->args[0]; | |
2926 | int idx = 0; | |
2927 | int err; | |
2928 | ||
2929 | mutex_lock(&devlink_mutex); | |
2930 | list_for_each_entry(devlink, &devlink_list, list) { | |
2931 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
2932 | continue; | |
2933 | mutex_lock(&devlink->lock); | |
2934 | list_for_each_entry(param_item, &devlink->param_list, list) { | |
2935 | if (idx < start) { | |
2936 | idx++; | |
2937 | continue; | |
2938 | } | |
2939 | err = devlink_nl_param_fill(msg, devlink, param_item, | |
2940 | DEVLINK_CMD_PARAM_GET, | |
2941 | NETLINK_CB(cb->skb).portid, | |
2942 | cb->nlh->nlmsg_seq, | |
2943 | NLM_F_MULTI); | |
2944 | if (err) { | |
2945 | mutex_unlock(&devlink->lock); | |
2946 | goto out; | |
2947 | } | |
2948 | idx++; | |
2949 | } | |
2950 | mutex_unlock(&devlink->lock); | |
2951 | } | |
2952 | out: | |
2953 | mutex_unlock(&devlink_mutex); | |
2954 | ||
2955 | cb->args[0] = idx; | |
2956 | return msg->len; | |
2957 | } | |
2958 | ||
e3b7ca18 MS |
2959 | static int |
2960 | devlink_param_type_get_from_info(struct genl_info *info, | |
2961 | enum devlink_param_type *param_type) | |
2962 | { | |
2963 | if (!info->attrs[DEVLINK_ATTR_PARAM_TYPE]) | |
2964 | return -EINVAL; | |
2965 | ||
2966 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
2967 | case NLA_U8: | |
2968 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
2969 | break; | |
2970 | case NLA_U16: | |
2971 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
2972 | break; | |
2973 | case NLA_U32: | |
2974 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
2975 | break; | |
2976 | case NLA_STRING: | |
2977 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
2978 | break; | |
2979 | case NLA_FLAG: | |
2980 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
2981 | break; | |
2982 | default: | |
2983 | return -EINVAL; | |
2984 | } | |
2985 | ||
2986 | return 0; | |
2987 | } | |
2988 | ||
2989 | static int | |
2990 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
2991 | struct genl_info *info, | |
2992 | union devlink_param_value *value) | |
2993 | { | |
2994 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && | |
2995 | !info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) | |
2996 | return -EINVAL; | |
2997 | ||
2998 | switch (param->type) { | |
2999 | case DEVLINK_PARAM_TYPE_U8: | |
3000 | value->vu8 = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); | |
3001 | break; | |
3002 | case DEVLINK_PARAM_TYPE_U16: | |
3003 | value->vu16 = nla_get_u16(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); | |
3004 | break; | |
3005 | case DEVLINK_PARAM_TYPE_U32: | |
3006 | value->vu32 = nla_get_u32(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); | |
3007 | break; | |
3008 | case DEVLINK_PARAM_TYPE_STRING: | |
3009 | if (nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) > | |
3010 | DEVLINK_PARAM_MAX_STRING_VALUE) | |
3011 | return -EINVAL; | |
3012 | value->vstr = nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); | |
3013 | break; | |
3014 | case DEVLINK_PARAM_TYPE_BOOL: | |
3015 | value->vbool = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA] ? | |
3016 | true : false; | |
3017 | break; | |
3018 | } | |
3019 | return 0; | |
3020 | } | |
3021 | ||
45f05def MS |
3022 | static struct devlink_param_item * |
3023 | devlink_param_get_from_info(struct devlink *devlink, | |
3024 | struct genl_info *info) | |
3025 | { | |
3026 | char *param_name; | |
3027 | ||
3028 | if (!info->attrs[DEVLINK_ATTR_PARAM_NAME]) | |
3029 | return NULL; | |
3030 | ||
3031 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
3032 | return devlink_param_find_by_name(&devlink->param_list, param_name); | |
3033 | } | |
3034 | ||
3035 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
3036 | struct genl_info *info) | |
3037 | { | |
3038 | struct devlink *devlink = info->user_ptr[0]; | |
3039 | struct devlink_param_item *param_item; | |
3040 | struct sk_buff *msg; | |
3041 | int err; | |
3042 | ||
3043 | param_item = devlink_param_get_from_info(devlink, info); | |
3044 | if (!param_item) | |
3045 | return -EINVAL; | |
3046 | ||
3047 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3048 | if (!msg) | |
3049 | return -ENOMEM; | |
3050 | ||
3051 | err = devlink_nl_param_fill(msg, devlink, param_item, | |
3052 | DEVLINK_CMD_PARAM_GET, | |
3053 | info->snd_portid, info->snd_seq, 0); | |
3054 | if (err) { | |
3055 | nlmsg_free(msg); | |
3056 | return err; | |
3057 | } | |
3058 | ||
3059 | return genlmsg_reply(msg, info); | |
3060 | } | |
3061 | ||
e3b7ca18 MS |
3062 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
3063 | struct genl_info *info) | |
3064 | { | |
3065 | struct devlink *devlink = info->user_ptr[0]; | |
3066 | enum devlink_param_type param_type; | |
3067 | struct devlink_param_gset_ctx ctx; | |
3068 | enum devlink_param_cmode cmode; | |
3069 | struct devlink_param_item *param_item; | |
3070 | const struct devlink_param *param; | |
3071 | union devlink_param_value value; | |
3072 | int err = 0; | |
3073 | ||
3074 | param_item = devlink_param_get_from_info(devlink, info); | |
3075 | if (!param_item) | |
3076 | return -EINVAL; | |
3077 | param = param_item->param; | |
3078 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
3079 | if (err) | |
3080 | return err; | |
3081 | if (param_type != param->type) | |
3082 | return -EINVAL; | |
3083 | err = devlink_param_value_get_from_info(param, info, &value); | |
3084 | if (err) | |
3085 | return err; | |
3086 | if (param->validate) { | |
3087 | err = param->validate(devlink, param->id, value, info->extack); | |
3088 | if (err) | |
3089 | return err; | |
3090 | } | |
3091 | ||
3092 | if (!info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]) | |
3093 | return -EINVAL; | |
3094 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
3095 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
3096 | return -EOPNOTSUPP; | |
3097 | ||
3098 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
3099 | param_item->driverinit_value = value; | |
3100 | param_item->driverinit_value_valid = true; | |
3101 | } else { | |
3102 | if (!param->set) | |
3103 | return -EOPNOTSUPP; | |
3104 | ctx.val = value; | |
3105 | ctx.cmode = cmode; | |
3106 | err = devlink_param_set(devlink, param, &ctx); | |
3107 | if (err) | |
3108 | return err; | |
3109 | } | |
3110 | ||
ea601e17 | 3111 | devlink_param_notify(devlink, param_item, DEVLINK_CMD_PARAM_NEW); |
e3b7ca18 MS |
3112 | return 0; |
3113 | } | |
3114 | ||
eabaef18 MS |
3115 | static int devlink_param_register_one(struct devlink *devlink, |
3116 | const struct devlink_param *param) | |
3117 | { | |
3118 | struct devlink_param_item *param_item; | |
3119 | ||
3120 | if (devlink_param_find_by_name(&devlink->param_list, | |
3121 | param->name)) | |
3122 | return -EEXIST; | |
3123 | ||
3124 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
3125 | WARN_ON(param->get || param->set); | |
3126 | else | |
3127 | WARN_ON(!param->get || !param->set); | |
3128 | ||
3129 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
3130 | if (!param_item) | |
3131 | return -ENOMEM; | |
3132 | param_item->param = param; | |
3133 | ||
3134 | list_add_tail(¶m_item->list, &devlink->param_list); | |
ea601e17 | 3135 | devlink_param_notify(devlink, param_item, DEVLINK_CMD_PARAM_NEW); |
eabaef18 MS |
3136 | return 0; |
3137 | } | |
3138 | ||
3139 | static void devlink_param_unregister_one(struct devlink *devlink, | |
3140 | const struct devlink_param *param) | |
3141 | { | |
3142 | struct devlink_param_item *param_item; | |
3143 | ||
3144 | param_item = devlink_param_find_by_name(&devlink->param_list, | |
3145 | param->name); | |
3146 | WARN_ON(!param_item); | |
ea601e17 | 3147 | devlink_param_notify(devlink, param_item, DEVLINK_CMD_PARAM_DEL); |
eabaef18 MS |
3148 | list_del(¶m_item->list); |
3149 | kfree(param_item); | |
3150 | } | |
3151 | ||
d8db7ea5 AV |
3152 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
3153 | enum devlink_command cmd, u32 portid, | |
3154 | u32 seq, int flags, | |
3155 | struct devlink_region *region) | |
3156 | { | |
3157 | void *hdr; | |
3158 | int err; | |
3159 | ||
3160 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3161 | if (!hdr) | |
3162 | return -EMSGSIZE; | |
3163 | ||
3164 | err = devlink_nl_put_handle(msg, devlink); | |
3165 | if (err) | |
3166 | goto nla_put_failure; | |
3167 | ||
3168 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->name); | |
3169 | if (err) | |
3170 | goto nla_put_failure; | |
3171 | ||
3172 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
3173 | region->size, | |
3174 | DEVLINK_ATTR_PAD); | |
3175 | if (err) | |
3176 | goto nla_put_failure; | |
3177 | ||
3178 | genlmsg_end(msg, hdr); | |
3179 | return 0; | |
3180 | ||
3181 | nla_put_failure: | |
3182 | genlmsg_cancel(msg, hdr); | |
3183 | return err; | |
3184 | } | |
3185 | ||
3186 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, | |
3187 | struct genl_info *info) | |
3188 | { | |
3189 | struct devlink *devlink = info->user_ptr[0]; | |
3190 | struct devlink_region *region; | |
3191 | const char *region_name; | |
3192 | struct sk_buff *msg; | |
3193 | int err; | |
3194 | ||
3195 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) | |
3196 | return -EINVAL; | |
3197 | ||
3198 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
3199 | region = devlink_region_get_by_name(devlink, region_name); | |
3200 | if (!region) | |
3201 | return -EINVAL; | |
3202 | ||
3203 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3204 | if (!msg) | |
3205 | return -ENOMEM; | |
3206 | ||
3207 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
3208 | info->snd_portid, info->snd_seq, 0, | |
3209 | region); | |
3210 | if (err) { | |
3211 | nlmsg_free(msg); | |
3212 | return err; | |
3213 | } | |
3214 | ||
3215 | return genlmsg_reply(msg, info); | |
3216 | } | |
3217 | ||
3218 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, | |
3219 | struct netlink_callback *cb) | |
3220 | { | |
3221 | struct devlink_region *region; | |
3222 | struct devlink *devlink; | |
3223 | int start = cb->args[0]; | |
3224 | int idx = 0; | |
3225 | int err; | |
3226 | ||
3227 | mutex_lock(&devlink_mutex); | |
3228 | list_for_each_entry(devlink, &devlink_list, list) { | |
3229 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
3230 | continue; | |
3231 | ||
3232 | mutex_lock(&devlink->lock); | |
3233 | list_for_each_entry(region, &devlink->region_list, list) { | |
3234 | if (idx < start) { | |
3235 | idx++; | |
3236 | continue; | |
3237 | } | |
3238 | err = devlink_nl_region_fill(msg, devlink, | |
3239 | DEVLINK_CMD_REGION_GET, | |
3240 | NETLINK_CB(cb->skb).portid, | |
3241 | cb->nlh->nlmsg_seq, | |
3242 | NLM_F_MULTI, region); | |
3243 | if (err) { | |
3244 | mutex_unlock(&devlink->lock); | |
3245 | goto out; | |
3246 | } | |
3247 | idx++; | |
3248 | } | |
3249 | mutex_unlock(&devlink->lock); | |
3250 | } | |
3251 | out: | |
3252 | mutex_unlock(&devlink_mutex); | |
3253 | cb->args[0] = idx; | |
3254 | return msg->len; | |
3255 | } | |
3256 | ||
bfcd3a46 JP |
3257 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
3258 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, | |
3259 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
3260 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
3261 | [DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 }, | |
3262 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, | |
bf797471 JP |
3263 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
3264 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
3265 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
3266 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
3267 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
3268 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
3269 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
08f4b591 | 3270 | [DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 }, |
59bfde01 | 3271 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 3272 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
3273 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
3274 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
3275 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
3276 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
3277 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
3278 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
3279 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 3280 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
bfcd3a46 JP |
3281 | }; |
3282 | ||
3283 | static const struct genl_ops devlink_nl_ops[] = { | |
3284 | { | |
3285 | .cmd = DEVLINK_CMD_GET, | |
3286 | .doit = devlink_nl_cmd_get_doit, | |
3287 | .dumpit = devlink_nl_cmd_get_dumpit, | |
3288 | .policy = devlink_nl_policy, | |
1fc2257e | 3289 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
bfcd3a46 JP |
3290 | /* can be retrieved by unprivileged users */ |
3291 | }, | |
3292 | { | |
3293 | .cmd = DEVLINK_CMD_PORT_GET, | |
3294 | .doit = devlink_nl_cmd_port_get_doit, | |
3295 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
3296 | .policy = devlink_nl_policy, | |
3297 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
3298 | /* can be retrieved by unprivileged users */ | |
3299 | }, | |
3300 | { | |
3301 | .cmd = DEVLINK_CMD_PORT_SET, | |
3302 | .doit = devlink_nl_cmd_port_set_doit, | |
3303 | .policy = devlink_nl_policy, | |
3304 | .flags = GENL_ADMIN_PERM, | |
3305 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
3306 | }, | |
3307 | { | |
3308 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
3309 | .doit = devlink_nl_cmd_port_split_doit, | |
3310 | .policy = devlink_nl_policy, | |
3311 | .flags = GENL_ADMIN_PERM, | |
2406e7e5 AS |
3312 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
3313 | DEVLINK_NL_FLAG_NO_LOCK, | |
bfcd3a46 JP |
3314 | }, |
3315 | { | |
3316 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
3317 | .doit = devlink_nl_cmd_port_unsplit_doit, | |
3318 | .policy = devlink_nl_policy, | |
3319 | .flags = GENL_ADMIN_PERM, | |
2406e7e5 AS |
3320 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
3321 | DEVLINK_NL_FLAG_NO_LOCK, | |
bfcd3a46 | 3322 | }, |
bf797471 JP |
3323 | { |
3324 | .cmd = DEVLINK_CMD_SB_GET, | |
3325 | .doit = devlink_nl_cmd_sb_get_doit, | |
3326 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
3327 | .policy = devlink_nl_policy, | |
3328 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
3329 | DEVLINK_NL_FLAG_NEED_SB, | |
3330 | /* can be retrieved by unprivileged users */ | |
3331 | }, | |
3332 | { | |
3333 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
3334 | .doit = devlink_nl_cmd_sb_pool_get_doit, | |
3335 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
3336 | .policy = devlink_nl_policy, | |
3337 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
3338 | DEVLINK_NL_FLAG_NEED_SB, | |
3339 | /* can be retrieved by unprivileged users */ | |
3340 | }, | |
3341 | { | |
3342 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
3343 | .doit = devlink_nl_cmd_sb_pool_set_doit, | |
3344 | .policy = devlink_nl_policy, | |
3345 | .flags = GENL_ADMIN_PERM, | |
3346 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
3347 | DEVLINK_NL_FLAG_NEED_SB, | |
3348 | }, | |
3349 | { | |
3350 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
3351 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, | |
3352 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
3353 | .policy = devlink_nl_policy, | |
3354 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
3355 | DEVLINK_NL_FLAG_NEED_SB, | |
3356 | /* can be retrieved by unprivileged users */ | |
3357 | }, | |
3358 | { | |
3359 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
3360 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, | |
3361 | .policy = devlink_nl_policy, | |
3362 | .flags = GENL_ADMIN_PERM, | |
3363 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
3364 | DEVLINK_NL_FLAG_NEED_SB, | |
3365 | }, | |
3366 | { | |
3367 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
3368 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, | |
3369 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
3370 | .policy = devlink_nl_policy, | |
3371 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
3372 | DEVLINK_NL_FLAG_NEED_SB, | |
3373 | /* can be retrieved by unprivileged users */ | |
3374 | }, | |
3375 | { | |
3376 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
3377 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, | |
3378 | .policy = devlink_nl_policy, | |
3379 | .flags = GENL_ADMIN_PERM, | |
3380 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
3381 | DEVLINK_NL_FLAG_NEED_SB, | |
3382 | }, | |
df38dafd JP |
3383 | { |
3384 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
3385 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, | |
3386 | .policy = devlink_nl_policy, | |
3387 | .flags = GENL_ADMIN_PERM, | |
3388 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2406e7e5 | 3389 | DEVLINK_NL_FLAG_NEED_SB, |
df38dafd JP |
3390 | }, |
3391 | { | |
3392 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
3393 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, | |
3394 | .policy = devlink_nl_policy, | |
3395 | .flags = GENL_ADMIN_PERM, | |
3396 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2406e7e5 | 3397 | DEVLINK_NL_FLAG_NEED_SB, |
df38dafd | 3398 | }, |
08f4b591 | 3399 | { |
adf200f3 JP |
3400 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
3401 | .doit = devlink_nl_cmd_eswitch_get_doit, | |
08f4b591 OG |
3402 | .policy = devlink_nl_policy, |
3403 | .flags = GENL_ADMIN_PERM, | |
3404 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
3405 | }, | |
3406 | { | |
adf200f3 JP |
3407 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
3408 | .doit = devlink_nl_cmd_eswitch_set_doit, | |
08f4b591 OG |
3409 | .policy = devlink_nl_policy, |
3410 | .flags = GENL_ADMIN_PERM, | |
7ac1cc9a JK |
3411 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
3412 | DEVLINK_NL_FLAG_NO_LOCK, | |
08f4b591 | 3413 | }, |
1555d204 AS |
3414 | { |
3415 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
3416 | .doit = devlink_nl_cmd_dpipe_table_get, | |
3417 | .policy = devlink_nl_policy, | |
1555d204 | 3418 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 3419 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
3420 | }, |
3421 | { | |
3422 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
3423 | .doit = devlink_nl_cmd_dpipe_entries_get, | |
3424 | .policy = devlink_nl_policy, | |
1555d204 | 3425 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 3426 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
3427 | }, |
3428 | { | |
3429 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
3430 | .doit = devlink_nl_cmd_dpipe_headers_get, | |
3431 | .policy = devlink_nl_policy, | |
1555d204 | 3432 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 3433 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
3434 | }, |
3435 | { | |
3436 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
3437 | .doit = devlink_nl_cmd_dpipe_table_counters_set, | |
3438 | .policy = devlink_nl_policy, | |
3439 | .flags = GENL_ADMIN_PERM, | |
3440 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
3441 | }, | |
d9f9b9a4 AS |
3442 | { |
3443 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
3444 | .doit = devlink_nl_cmd_resource_set, | |
3445 | .policy = devlink_nl_policy, | |
3446 | .flags = GENL_ADMIN_PERM, | |
3447 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
3448 | }, | |
3449 | { | |
3450 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
3451 | .doit = devlink_nl_cmd_resource_dump, | |
3452 | .policy = devlink_nl_policy, | |
d9f9b9a4 | 3453 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 3454 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 3455 | }, |
2d8dc5bb AS |
3456 | { |
3457 | .cmd = DEVLINK_CMD_RELOAD, | |
3458 | .doit = devlink_nl_cmd_reload, | |
3459 | .policy = devlink_nl_policy, | |
3460 | .flags = GENL_ADMIN_PERM, | |
3461 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
3462 | DEVLINK_NL_FLAG_NO_LOCK, | |
3463 | }, | |
45f05def MS |
3464 | { |
3465 | .cmd = DEVLINK_CMD_PARAM_GET, | |
3466 | .doit = devlink_nl_cmd_param_get_doit, | |
3467 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
3468 | .policy = devlink_nl_policy, | |
3469 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
3470 | /* can be retrieved by unprivileged users */ | |
3471 | }, | |
e3b7ca18 MS |
3472 | { |
3473 | .cmd = DEVLINK_CMD_PARAM_SET, | |
3474 | .doit = devlink_nl_cmd_param_set_doit, | |
3475 | .policy = devlink_nl_policy, | |
3476 | .flags = GENL_ADMIN_PERM, | |
3477 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
3478 | }, | |
d8db7ea5 AV |
3479 | { |
3480 | .cmd = DEVLINK_CMD_REGION_GET, | |
3481 | .doit = devlink_nl_cmd_region_get_doit, | |
3482 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
3483 | .policy = devlink_nl_policy, | |
3484 | .flags = GENL_ADMIN_PERM, | |
3485 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
3486 | }, | |
bfcd3a46 JP |
3487 | }; |
3488 | ||
56989f6d | 3489 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
3490 | .name = DEVLINK_GENL_NAME, |
3491 | .version = DEVLINK_GENL_VERSION, | |
3492 | .maxattr = DEVLINK_ATTR_MAX, | |
3493 | .netnsok = true, | |
3494 | .pre_doit = devlink_nl_pre_doit, | |
3495 | .post_doit = devlink_nl_post_doit, | |
3496 | .module = THIS_MODULE, | |
3497 | .ops = devlink_nl_ops, | |
3498 | .n_ops = ARRAY_SIZE(devlink_nl_ops), | |
3499 | .mcgrps = devlink_nl_mcgrps, | |
3500 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
3501 | }; | |
3502 | ||
bfcd3a46 JP |
3503 | /** |
3504 | * devlink_alloc - Allocate new devlink instance resources | |
3505 | * | |
3506 | * @ops: ops | |
3507 | * @priv_size: size of user private data | |
3508 | * | |
3509 | * Allocate new devlink instance resources, including devlink index | |
3510 | * and name. | |
3511 | */ | |
3512 | struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size) | |
3513 | { | |
3514 | struct devlink *devlink; | |
3515 | ||
3516 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); | |
3517 | if (!devlink) | |
3518 | return NULL; | |
3519 | devlink->ops = ops; | |
3520 | devlink_net_set(devlink, &init_net); | |
3521 | INIT_LIST_HEAD(&devlink->port_list); | |
bf797471 | 3522 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 3523 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 3524 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 3525 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 3526 | INIT_LIST_HEAD(&devlink->region_list); |
2406e7e5 | 3527 | mutex_init(&devlink->lock); |
bfcd3a46 JP |
3528 | return devlink; |
3529 | } | |
3530 | EXPORT_SYMBOL_GPL(devlink_alloc); | |
3531 | ||
3532 | /** | |
3533 | * devlink_register - Register devlink instance | |
3534 | * | |
3535 | * @devlink: devlink | |
3536 | */ | |
3537 | int devlink_register(struct devlink *devlink, struct device *dev) | |
3538 | { | |
3539 | mutex_lock(&devlink_mutex); | |
3540 | devlink->dev = dev; | |
3541 | list_add_tail(&devlink->list, &devlink_list); | |
3542 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
3543 | mutex_unlock(&devlink_mutex); | |
3544 | return 0; | |
3545 | } | |
3546 | EXPORT_SYMBOL_GPL(devlink_register); | |
3547 | ||
3548 | /** | |
3549 | * devlink_unregister - Unregister devlink instance | |
3550 | * | |
3551 | * @devlink: devlink | |
3552 | */ | |
3553 | void devlink_unregister(struct devlink *devlink) | |
3554 | { | |
3555 | mutex_lock(&devlink_mutex); | |
3556 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
3557 | list_del(&devlink->list); | |
3558 | mutex_unlock(&devlink_mutex); | |
3559 | } | |
3560 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
3561 | ||
3562 | /** | |
3563 | * devlink_free - Free devlink instance resources | |
3564 | * | |
3565 | * @devlink: devlink | |
3566 | */ | |
3567 | void devlink_free(struct devlink *devlink) | |
3568 | { | |
3569 | kfree(devlink); | |
3570 | } | |
3571 | EXPORT_SYMBOL_GPL(devlink_free); | |
3572 | ||
3573 | /** | |
3574 | * devlink_port_register - Register devlink port | |
3575 | * | |
3576 | * @devlink: devlink | |
3577 | * @devlink_port: devlink port | |
3578 | * @port_index | |
3579 | * | |
3580 | * Register devlink port with provided port index. User can use | |
3581 | * any indexing, even hw-related one. devlink_port structure | |
3582 | * is convenient to be embedded inside user driver private structure. | |
3583 | * Note that the caller should take care of zeroing the devlink_port | |
3584 | * structure. | |
3585 | */ | |
3586 | int devlink_port_register(struct devlink *devlink, | |
3587 | struct devlink_port *devlink_port, | |
3588 | unsigned int port_index) | |
3589 | { | |
2406e7e5 | 3590 | mutex_lock(&devlink->lock); |
bfcd3a46 | 3591 | if (devlink_port_index_exists(devlink, port_index)) { |
2406e7e5 | 3592 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
3593 | return -EEXIST; |
3594 | } | |
3595 | devlink_port->devlink = devlink; | |
3596 | devlink_port->index = port_index; | |
bfcd3a46 JP |
3597 | devlink_port->registered = true; |
3598 | list_add_tail(&devlink_port->list, &devlink->port_list); | |
2406e7e5 | 3599 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
3600 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
3601 | return 0; | |
3602 | } | |
3603 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
3604 | ||
3605 | /** | |
3606 | * devlink_port_unregister - Unregister devlink port | |
3607 | * | |
3608 | * @devlink_port: devlink port | |
3609 | */ | |
3610 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
3611 | { | |
2406e7e5 AS |
3612 | struct devlink *devlink = devlink_port->devlink; |
3613 | ||
bfcd3a46 | 3614 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); |
2406e7e5 | 3615 | mutex_lock(&devlink->lock); |
bfcd3a46 | 3616 | list_del(&devlink_port->list); |
2406e7e5 | 3617 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
3618 | } |
3619 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
3620 | ||
3621 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
3622 | enum devlink_port_type type, | |
3623 | void *type_dev) | |
3624 | { | |
3625 | devlink_port->type = type; | |
3626 | devlink_port->type_dev = type_dev; | |
3627 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
3628 | } | |
3629 | ||
3630 | /** | |
3631 | * devlink_port_type_eth_set - Set port type to Ethernet | |
3632 | * | |
3633 | * @devlink_port: devlink port | |
3634 | * @netdev: related netdevice | |
3635 | */ | |
3636 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
3637 | struct net_device *netdev) | |
3638 | { | |
3639 | return __devlink_port_type_set(devlink_port, | |
3640 | DEVLINK_PORT_TYPE_ETH, netdev); | |
3641 | } | |
3642 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
3643 | ||
3644 | /** | |
3645 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
3646 | * | |
3647 | * @devlink_port: devlink port | |
3648 | * @ibdev: related IB device | |
3649 | */ | |
3650 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
3651 | struct ib_device *ibdev) | |
3652 | { | |
3653 | return __devlink_port_type_set(devlink_port, | |
3654 | DEVLINK_PORT_TYPE_IB, ibdev); | |
3655 | } | |
3656 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
3657 | ||
3658 | /** | |
3659 | * devlink_port_type_clear - Clear port type | |
3660 | * | |
3661 | * @devlink_port: devlink port | |
3662 | */ | |
3663 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
3664 | { | |
3665 | return __devlink_port_type_set(devlink_port, | |
3666 | DEVLINK_PORT_TYPE_NOTSET, NULL); | |
3667 | } | |
3668 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
3669 | ||
3670 | /** | |
b9ffcbaf | 3671 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
3672 | * |
3673 | * @devlink_port: devlink port | |
5ec1380a | 3674 | * @flavour: flavour of the port |
b9ffcbaf JP |
3675 | * @port_number: number of the port that is facing user, for example |
3676 | * the front panel port number | |
3677 | * @split: indicates if this is split port | |
3678 | * @split_subport_number: if the port is split, this is the number | |
3679 | * of subport. | |
bfcd3a46 | 3680 | */ |
b9ffcbaf | 3681 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
5ec1380a | 3682 | enum devlink_port_flavour flavour, |
b9ffcbaf JP |
3683 | u32 port_number, bool split, |
3684 | u32 split_subport_number) | |
bfcd3a46 | 3685 | { |
b9ffcbaf JP |
3686 | struct devlink_port_attrs *attrs = &devlink_port->attrs; |
3687 | ||
3688 | attrs->set = true; | |
5ec1380a | 3689 | attrs->flavour = flavour; |
b9ffcbaf JP |
3690 | attrs->port_number = port_number; |
3691 | attrs->split = split; | |
3692 | attrs->split_subport_number = split_subport_number; | |
bfcd3a46 JP |
3693 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
3694 | } | |
b9ffcbaf | 3695 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 3696 | |
08474c1a JP |
3697 | int devlink_port_get_phys_port_name(struct devlink_port *devlink_port, |
3698 | char *name, size_t len) | |
3699 | { | |
3700 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
3701 | int n = 0; | |
3702 | ||
3703 | if (!attrs->set) | |
3704 | return -EOPNOTSUPP; | |
3705 | ||
3706 | switch (attrs->flavour) { | |
3707 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
3708 | if (!attrs->split) | |
3709 | n = snprintf(name, len, "p%u", attrs->port_number); | |
3710 | else | |
3711 | n = snprintf(name, len, "p%us%u", attrs->port_number, | |
3712 | attrs->split_subport_number); | |
3713 | break; | |
3714 | case DEVLINK_PORT_FLAVOUR_CPU: | |
3715 | case DEVLINK_PORT_FLAVOUR_DSA: | |
3716 | /* As CPU and DSA ports do not have a netdevice associated | |
3717 | * case should not ever happen. | |
3718 | */ | |
3719 | WARN_ON(1); | |
3720 | return -EINVAL; | |
3721 | } | |
3722 | ||
3723 | if (n >= len) | |
3724 | return -EINVAL; | |
3725 | ||
3726 | return 0; | |
3727 | } | |
3728 | EXPORT_SYMBOL_GPL(devlink_port_get_phys_port_name); | |
3729 | ||
bf797471 JP |
3730 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, |
3731 | u32 size, u16 ingress_pools_count, | |
3732 | u16 egress_pools_count, u16 ingress_tc_count, | |
3733 | u16 egress_tc_count) | |
3734 | { | |
3735 | struct devlink_sb *devlink_sb; | |
3736 | int err = 0; | |
3737 | ||
2406e7e5 | 3738 | mutex_lock(&devlink->lock); |
bf797471 JP |
3739 | if (devlink_sb_index_exists(devlink, sb_index)) { |
3740 | err = -EEXIST; | |
3741 | goto unlock; | |
3742 | } | |
3743 | ||
3744 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
3745 | if (!devlink_sb) { | |
3746 | err = -ENOMEM; | |
3747 | goto unlock; | |
3748 | } | |
3749 | devlink_sb->index = sb_index; | |
3750 | devlink_sb->size = size; | |
3751 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
3752 | devlink_sb->egress_pools_count = egress_pools_count; | |
3753 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
3754 | devlink_sb->egress_tc_count = egress_tc_count; | |
3755 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
3756 | unlock: | |
2406e7e5 | 3757 | mutex_unlock(&devlink->lock); |
bf797471 JP |
3758 | return err; |
3759 | } | |
3760 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
3761 | ||
3762 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
3763 | { | |
3764 | struct devlink_sb *devlink_sb; | |
3765 | ||
2406e7e5 | 3766 | mutex_lock(&devlink->lock); |
bf797471 JP |
3767 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
3768 | WARN_ON(!devlink_sb); | |
3769 | list_del(&devlink_sb->list); | |
2406e7e5 | 3770 | mutex_unlock(&devlink->lock); |
bf797471 JP |
3771 | kfree(devlink_sb); |
3772 | } | |
3773 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); | |
3774 | ||
1555d204 AS |
3775 | /** |
3776 | * devlink_dpipe_headers_register - register dpipe headers | |
3777 | * | |
3778 | * @devlink: devlink | |
3779 | * @dpipe_headers: dpipe header array | |
3780 | * | |
3781 | * Register the headers supported by hardware. | |
3782 | */ | |
3783 | int devlink_dpipe_headers_register(struct devlink *devlink, | |
3784 | struct devlink_dpipe_headers *dpipe_headers) | |
3785 | { | |
2406e7e5 | 3786 | mutex_lock(&devlink->lock); |
1555d204 | 3787 | devlink->dpipe_headers = dpipe_headers; |
2406e7e5 | 3788 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3789 | return 0; |
3790 | } | |
3791 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register); | |
3792 | ||
3793 | /** | |
3794 | * devlink_dpipe_headers_unregister - unregister dpipe headers | |
3795 | * | |
3796 | * @devlink: devlink | |
3797 | * | |
3798 | * Unregister the headers supported by hardware. | |
3799 | */ | |
3800 | void devlink_dpipe_headers_unregister(struct devlink *devlink) | |
3801 | { | |
2406e7e5 | 3802 | mutex_lock(&devlink->lock); |
1555d204 | 3803 | devlink->dpipe_headers = NULL; |
2406e7e5 | 3804 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3805 | } |
3806 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister); | |
3807 | ||
3808 | /** | |
3809 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
3810 | * required | |
3811 | * @devlink: devlink | |
3812 | * @table_name: tables name | |
3813 | * | |
3814 | * Used by driver to check if counter allocation is required. | |
3815 | * After counter allocation is turned on the table entries | |
3816 | * are updated to include counter statistics. | |
3817 | * | |
3818 | * After that point on the driver must respect the counter | |
3819 | * state so that each entry added to the table is added | |
3820 | * with a counter. | |
3821 | */ | |
3822 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
3823 | const char *table_name) | |
3824 | { | |
3825 | struct devlink_dpipe_table *table; | |
3826 | bool enabled; | |
3827 | ||
3828 | rcu_read_lock(); | |
3829 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
3830 | table_name); | |
3831 | enabled = false; | |
3832 | if (table) | |
3833 | enabled = table->counters_enabled; | |
3834 | rcu_read_unlock(); | |
3835 | return enabled; | |
3836 | } | |
3837 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
3838 | ||
3839 | /** | |
3840 | * devlink_dpipe_table_register - register dpipe table | |
3841 | * | |
3842 | * @devlink: devlink | |
3843 | * @table_name: table name | |
3844 | * @table_ops: table ops | |
3845 | * @priv: priv | |
1555d204 AS |
3846 | * @counter_control_extern: external control for counters |
3847 | */ | |
3848 | int devlink_dpipe_table_register(struct devlink *devlink, | |
3849 | const char *table_name, | |
3850 | struct devlink_dpipe_table_ops *table_ops, | |
ffd3cdcc | 3851 | void *priv, bool counter_control_extern) |
1555d204 AS |
3852 | { |
3853 | struct devlink_dpipe_table *table; | |
3854 | ||
3855 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name)) | |
3856 | return -EEXIST; | |
3857 | ||
ffd3cdcc AS |
3858 | if (WARN_ON(!table_ops->size_get)) |
3859 | return -EINVAL; | |
3860 | ||
1555d204 AS |
3861 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
3862 | if (!table) | |
3863 | return -ENOMEM; | |
3864 | ||
3865 | table->name = table_name; | |
3866 | table->table_ops = table_ops; | |
3867 | table->priv = priv; | |
1555d204 AS |
3868 | table->counter_control_extern = counter_control_extern; |
3869 | ||
2406e7e5 | 3870 | mutex_lock(&devlink->lock); |
1555d204 | 3871 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
2406e7e5 | 3872 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3873 | return 0; |
3874 | } | |
3875 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_register); | |
3876 | ||
3877 | /** | |
3878 | * devlink_dpipe_table_unregister - unregister dpipe table | |
3879 | * | |
3880 | * @devlink: devlink | |
3881 | * @table_name: table name | |
3882 | */ | |
3883 | void devlink_dpipe_table_unregister(struct devlink *devlink, | |
3884 | const char *table_name) | |
3885 | { | |
3886 | struct devlink_dpipe_table *table; | |
3887 | ||
2406e7e5 | 3888 | mutex_lock(&devlink->lock); |
1555d204 AS |
3889 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
3890 | table_name); | |
3891 | if (!table) | |
3892 | goto unlock; | |
3893 | list_del_rcu(&table->list); | |
2406e7e5 | 3894 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3895 | kfree_rcu(table, rcu); |
3896 | return; | |
3897 | unlock: | |
2406e7e5 | 3898 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3899 | } |
3900 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister); | |
3901 | ||
d9f9b9a4 AS |
3902 | /** |
3903 | * devlink_resource_register - devlink resource register | |
3904 | * | |
3905 | * @devlink: devlink | |
3906 | * @resource_name: resource's name | |
3907 | * @top_hierarchy: top hierarchy | |
3908 | * @reload_required: reload is required for new configuration to | |
3909 | * apply | |
3910 | * @resource_size: resource's size | |
3911 | * @resource_id: resource's id | |
3912 | * @parent_reosurce_id: resource's parent id | |
3913 | * @size params: size parameters | |
d9f9b9a4 AS |
3914 | */ |
3915 | int devlink_resource_register(struct devlink *devlink, | |
3916 | const char *resource_name, | |
d9f9b9a4 AS |
3917 | u64 resource_size, |
3918 | u64 resource_id, | |
3919 | u64 parent_resource_id, | |
fc56be47 | 3920 | const struct devlink_resource_size_params *size_params) |
d9f9b9a4 AS |
3921 | { |
3922 | struct devlink_resource *resource; | |
3923 | struct list_head *resource_list; | |
14530746 | 3924 | bool top_hierarchy; |
d9f9b9a4 AS |
3925 | int err = 0; |
3926 | ||
14530746 DA |
3927 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
3928 | ||
d9f9b9a4 AS |
3929 | mutex_lock(&devlink->lock); |
3930 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
3931 | if (resource) { | |
3932 | err = -EINVAL; | |
3933 | goto out; | |
3934 | } | |
3935 | ||
3936 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
3937 | if (!resource) { | |
3938 | err = -ENOMEM; | |
3939 | goto out; | |
3940 | } | |
3941 | ||
3942 | if (top_hierarchy) { | |
3943 | resource_list = &devlink->resource_list; | |
3944 | } else { | |
3945 | struct devlink_resource *parent_resource; | |
3946 | ||
3947 | parent_resource = devlink_resource_find(devlink, NULL, | |
3948 | parent_resource_id); | |
3949 | if (parent_resource) { | |
3950 | resource_list = &parent_resource->resource_list; | |
3951 | resource->parent = parent_resource; | |
3952 | } else { | |
b75703de | 3953 | kfree(resource); |
d9f9b9a4 AS |
3954 | err = -EINVAL; |
3955 | goto out; | |
3956 | } | |
3957 | } | |
3958 | ||
3959 | resource->name = resource_name; | |
3960 | resource->size = resource_size; | |
3961 | resource->size_new = resource_size; | |
3962 | resource->id = resource_id; | |
d9f9b9a4 | 3963 | resource->size_valid = true; |
77d27096 JP |
3964 | memcpy(&resource->size_params, size_params, |
3965 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
3966 | INIT_LIST_HEAD(&resource->resource_list); |
3967 | list_add_tail(&resource->list, resource_list); | |
3968 | out: | |
3969 | mutex_unlock(&devlink->lock); | |
3970 | return err; | |
3971 | } | |
3972 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
3973 | ||
3974 | /** | |
3975 | * devlink_resources_unregister - free all resources | |
3976 | * | |
3977 | * @devlink: devlink | |
3978 | * @resource: resource | |
3979 | */ | |
3980 | void devlink_resources_unregister(struct devlink *devlink, | |
3981 | struct devlink_resource *resource) | |
3982 | { | |
3983 | struct devlink_resource *tmp, *child_resource; | |
3984 | struct list_head *resource_list; | |
3985 | ||
3986 | if (resource) | |
3987 | resource_list = &resource->resource_list; | |
3988 | else | |
3989 | resource_list = &devlink->resource_list; | |
3990 | ||
3991 | if (!resource) | |
3992 | mutex_lock(&devlink->lock); | |
3993 | ||
3994 | list_for_each_entry_safe(child_resource, tmp, resource_list, list) { | |
3995 | devlink_resources_unregister(devlink, child_resource); | |
3996 | list_del(&child_resource->list); | |
3997 | kfree(child_resource); | |
3998 | } | |
3999 | ||
4000 | if (!resource) | |
4001 | mutex_unlock(&devlink->lock); | |
4002 | } | |
4003 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
4004 | ||
4005 | /** | |
4006 | * devlink_resource_size_get - get and update size | |
4007 | * | |
4008 | * @devlink: devlink | |
4009 | * @resource_id: the requested resource id | |
4010 | * @p_resource_size: ptr to update | |
4011 | */ | |
4012 | int devlink_resource_size_get(struct devlink *devlink, | |
4013 | u64 resource_id, | |
4014 | u64 *p_resource_size) | |
4015 | { | |
4016 | struct devlink_resource *resource; | |
4017 | int err = 0; | |
4018 | ||
4019 | mutex_lock(&devlink->lock); | |
4020 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4021 | if (!resource) { | |
4022 | err = -EINVAL; | |
4023 | goto out; | |
4024 | } | |
4025 | *p_resource_size = resource->size_new; | |
4026 | resource->size = resource->size_new; | |
4027 | out: | |
4028 | mutex_unlock(&devlink->lock); | |
4029 | return err; | |
4030 | } | |
4031 | EXPORT_SYMBOL_GPL(devlink_resource_size_get); | |
4032 | ||
56dc7cd0 AS |
4033 | /** |
4034 | * devlink_dpipe_table_resource_set - set the resource id | |
4035 | * | |
4036 | * @devlink: devlink | |
4037 | * @table_name: table name | |
4038 | * @resource_id: resource id | |
4039 | * @resource_units: number of resource's units consumed per table's entry | |
4040 | */ | |
4041 | int devlink_dpipe_table_resource_set(struct devlink *devlink, | |
4042 | const char *table_name, u64 resource_id, | |
4043 | u64 resource_units) | |
4044 | { | |
4045 | struct devlink_dpipe_table *table; | |
4046 | int err = 0; | |
4047 | ||
4048 | mutex_lock(&devlink->lock); | |
4049 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
4050 | table_name); | |
4051 | if (!table) { | |
4052 | err = -EINVAL; | |
4053 | goto out; | |
4054 | } | |
4055 | table->resource_id = resource_id; | |
4056 | table->resource_units = resource_units; | |
4057 | table->resource_valid = true; | |
4058 | out: | |
4059 | mutex_unlock(&devlink->lock); | |
4060 | return err; | |
4061 | } | |
4062 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_resource_set); | |
4063 | ||
fc56be47 JP |
4064 | /** |
4065 | * devlink_resource_occ_get_register - register occupancy getter | |
4066 | * | |
4067 | * @devlink: devlink | |
4068 | * @resource_id: resource id | |
4069 | * @occ_get: occupancy getter callback | |
4070 | * @occ_get_priv: occupancy getter callback priv | |
4071 | */ | |
4072 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
4073 | u64 resource_id, | |
4074 | devlink_resource_occ_get_t *occ_get, | |
4075 | void *occ_get_priv) | |
4076 | { | |
4077 | struct devlink_resource *resource; | |
4078 | ||
4079 | mutex_lock(&devlink->lock); | |
4080 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4081 | if (WARN_ON(!resource)) | |
4082 | goto out; | |
4083 | WARN_ON(resource->occ_get); | |
4084 | ||
4085 | resource->occ_get = occ_get; | |
4086 | resource->occ_get_priv = occ_get_priv; | |
4087 | out: | |
4088 | mutex_unlock(&devlink->lock); | |
4089 | } | |
4090 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
4091 | ||
4092 | /** | |
4093 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
4094 | * | |
4095 | * @devlink: devlink | |
4096 | * @resource_id: resource id | |
4097 | */ | |
4098 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
4099 | u64 resource_id) | |
4100 | { | |
4101 | struct devlink_resource *resource; | |
4102 | ||
4103 | mutex_lock(&devlink->lock); | |
4104 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4105 | if (WARN_ON(!resource)) | |
4106 | goto out; | |
4107 | WARN_ON(!resource->occ_get); | |
4108 | ||
4109 | resource->occ_get = NULL; | |
4110 | resource->occ_get_priv = NULL; | |
4111 | out: | |
4112 | mutex_unlock(&devlink->lock); | |
4113 | } | |
4114 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
4115 | ||
eabaef18 MS |
4116 | /** |
4117 | * devlink_params_register - register configuration parameters | |
4118 | * | |
4119 | * @devlink: devlink | |
4120 | * @params: configuration parameters array | |
4121 | * @params_count: number of parameters provided | |
4122 | * | |
4123 | * Register the configuration parameters supported by the driver. | |
4124 | */ | |
4125 | int devlink_params_register(struct devlink *devlink, | |
4126 | const struct devlink_param *params, | |
4127 | size_t params_count) | |
4128 | { | |
4129 | const struct devlink_param *param = params; | |
4130 | int i; | |
4131 | int err; | |
4132 | ||
4133 | mutex_lock(&devlink->lock); | |
4134 | for (i = 0; i < params_count; i++, param++) { | |
4135 | if (!param || !param->name || !param->supported_cmodes) { | |
4136 | err = -EINVAL; | |
4137 | goto rollback; | |
4138 | } | |
4139 | if (param->generic) { | |
4140 | err = devlink_param_generic_verify(param); | |
4141 | if (err) | |
4142 | goto rollback; | |
4143 | } else { | |
4144 | err = devlink_param_driver_verify(param); | |
4145 | if (err) | |
4146 | goto rollback; | |
4147 | } | |
4148 | err = devlink_param_register_one(devlink, param); | |
4149 | if (err) | |
4150 | goto rollback; | |
4151 | } | |
4152 | ||
4153 | mutex_unlock(&devlink->lock); | |
4154 | return 0; | |
4155 | ||
4156 | rollback: | |
4157 | if (!i) | |
4158 | goto unlock; | |
4159 | for (param--; i > 0; i--, param--) | |
4160 | devlink_param_unregister_one(devlink, param); | |
4161 | unlock: | |
4162 | mutex_unlock(&devlink->lock); | |
4163 | return err; | |
4164 | } | |
4165 | EXPORT_SYMBOL_GPL(devlink_params_register); | |
4166 | ||
4167 | /** | |
4168 | * devlink_params_unregister - unregister configuration parameters | |
4169 | * @devlink: devlink | |
4170 | * @params: configuration parameters to unregister | |
4171 | * @params_count: number of parameters provided | |
4172 | */ | |
4173 | void devlink_params_unregister(struct devlink *devlink, | |
4174 | const struct devlink_param *params, | |
4175 | size_t params_count) | |
4176 | { | |
4177 | const struct devlink_param *param = params; | |
4178 | int i; | |
4179 | ||
4180 | mutex_lock(&devlink->lock); | |
4181 | for (i = 0; i < params_count; i++, param++) | |
4182 | devlink_param_unregister_one(devlink, param); | |
4183 | mutex_unlock(&devlink->lock); | |
4184 | } | |
4185 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
4186 | ||
ec01aeb1 MS |
4187 | /** |
4188 | * devlink_param_driverinit_value_get - get configuration parameter | |
4189 | * value for driver initializing | |
4190 | * | |
4191 | * @devlink: devlink | |
4192 | * @param_id: parameter ID | |
4193 | * @init_val: value of parameter in driverinit configuration mode | |
4194 | * | |
4195 | * This function should be used by the driver to get driverinit | |
4196 | * configuration for initialization after reload command. | |
4197 | */ | |
4198 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
4199 | union devlink_param_value *init_val) | |
4200 | { | |
4201 | struct devlink_param_item *param_item; | |
4202 | ||
4203 | if (!devlink->ops || !devlink->ops->reload) | |
4204 | return -EOPNOTSUPP; | |
4205 | ||
4206 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
4207 | if (!param_item) | |
4208 | return -EINVAL; | |
4209 | ||
4210 | if (!param_item->driverinit_value_valid || | |
4211 | !devlink_param_cmode_is_supported(param_item->param, | |
4212 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
4213 | return -EOPNOTSUPP; | |
4214 | ||
4215 | *init_val = param_item->driverinit_value; | |
4216 | ||
4217 | return 0; | |
4218 | } | |
4219 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); | |
4220 | ||
4221 | /** | |
4222 | * devlink_param_driverinit_value_set - set value of configuration | |
4223 | * parameter for driverinit | |
4224 | * configuration mode | |
4225 | * | |
4226 | * @devlink: devlink | |
4227 | * @param_id: parameter ID | |
4228 | * @init_val: value of parameter to set for driverinit configuration mode | |
4229 | * | |
4230 | * This function should be used by the driver to set driverinit | |
4231 | * configuration mode default value. | |
4232 | */ | |
4233 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
4234 | union devlink_param_value init_val) | |
4235 | { | |
4236 | struct devlink_param_item *param_item; | |
4237 | ||
4238 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
4239 | if (!param_item) | |
4240 | return -EINVAL; | |
4241 | ||
4242 | if (!devlink_param_cmode_is_supported(param_item->param, | |
4243 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
4244 | return -EOPNOTSUPP; | |
4245 | ||
4246 | param_item->driverinit_value = init_val; | |
4247 | param_item->driverinit_value_valid = true; | |
4248 | ||
ea601e17 | 4249 | devlink_param_notify(devlink, param_item, DEVLINK_CMD_PARAM_NEW); |
ec01aeb1 MS |
4250 | return 0; |
4251 | } | |
4252 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); | |
4253 | ||
ea601e17 MS |
4254 | /** |
4255 | * devlink_param_value_changed - notify devlink on a parameter's value | |
4256 | * change. Should be called by the driver | |
4257 | * right after the change. | |
4258 | * | |
4259 | * @devlink: devlink | |
4260 | * @param_id: parameter ID | |
4261 | * | |
4262 | * This function should be used by the driver to notify devlink on value | |
4263 | * change, excluding driverinit configuration mode. | |
4264 | * For driverinit configuration mode driver should use the function | |
4265 | * devlink_param_driverinit_value_set() instead. | |
4266 | */ | |
4267 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
4268 | { | |
4269 | struct devlink_param_item *param_item; | |
4270 | ||
4271 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
4272 | WARN_ON(!param_item); | |
4273 | ||
4274 | devlink_param_notify(devlink, param_item, DEVLINK_CMD_PARAM_NEW); | |
4275 | } | |
4276 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
4277 | ||
b16ebe92 AV |
4278 | /** |
4279 | * devlink_region_create - create a new address region | |
4280 | * | |
4281 | * @devlink: devlink | |
4282 | * @region_name: region name | |
4283 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
4284 | * @region_size: size of region | |
4285 | */ | |
4286 | struct devlink_region *devlink_region_create(struct devlink *devlink, | |
4287 | const char *region_name, | |
4288 | u32 region_max_snapshots, | |
4289 | u64 region_size) | |
4290 | { | |
4291 | struct devlink_region *region; | |
4292 | int err = 0; | |
4293 | ||
4294 | mutex_lock(&devlink->lock); | |
4295 | ||
4296 | if (devlink_region_get_by_name(devlink, region_name)) { | |
4297 | err = -EEXIST; | |
4298 | goto unlock; | |
4299 | } | |
4300 | ||
4301 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
4302 | if (!region) { | |
4303 | err = -ENOMEM; | |
4304 | goto unlock; | |
4305 | } | |
4306 | ||
4307 | region->devlink = devlink; | |
4308 | region->max_snapshots = region_max_snapshots; | |
4309 | region->name = region_name; | |
4310 | region->size = region_size; | |
4311 | INIT_LIST_HEAD(®ion->snapshot_list); | |
4312 | list_add_tail(®ion->list, &devlink->region_list); | |
4313 | ||
4314 | mutex_unlock(&devlink->lock); | |
4315 | return region; | |
4316 | ||
4317 | unlock: | |
4318 | mutex_unlock(&devlink->lock); | |
4319 | return ERR_PTR(err); | |
4320 | } | |
4321 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
4322 | ||
4323 | /** | |
4324 | * devlink_region_destroy - destroy address region | |
4325 | * | |
4326 | * @region: devlink region to destroy | |
4327 | */ | |
4328 | void devlink_region_destroy(struct devlink_region *region) | |
4329 | { | |
4330 | struct devlink *devlink = region->devlink; | |
d7e52722 | 4331 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 AV |
4332 | |
4333 | mutex_lock(&devlink->lock); | |
d7e52722 AV |
4334 | |
4335 | /* Free all snapshots of region */ | |
4336 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
4337 | devlink_region_snapshot_del(snapshot); | |
4338 | ||
b16ebe92 AV |
4339 | list_del(®ion->list); |
4340 | mutex_unlock(&devlink->lock); | |
4341 | kfree(region); | |
4342 | } | |
4343 | EXPORT_SYMBOL_GPL(devlink_region_destroy); | |
4344 | ||
ccadfa44 AV |
4345 | /** |
4346 | * devlink_region_shapshot_id_get - get snapshot ID | |
4347 | * | |
4348 | * This callback should be called when adding a new snapshot, | |
4349 | * Driver should use the same id for multiple snapshots taken | |
4350 | * on multiple regions at the same time/by the same trigger. | |
4351 | * | |
4352 | * @devlink: devlink | |
4353 | */ | |
4354 | u32 devlink_region_shapshot_id_get(struct devlink *devlink) | |
4355 | { | |
4356 | u32 id; | |
4357 | ||
4358 | mutex_lock(&devlink->lock); | |
4359 | id = ++devlink->snapshot_id; | |
4360 | mutex_unlock(&devlink->lock); | |
4361 | ||
4362 | return id; | |
4363 | } | |
4364 | EXPORT_SYMBOL_GPL(devlink_region_shapshot_id_get); | |
4365 | ||
d7e52722 AV |
4366 | /** |
4367 | * devlink_region_snapshot_create - create a new snapshot | |
4368 | * This will add a new snapshot of a region. The snapshot | |
4369 | * will be stored on the region struct and can be accessed | |
4370 | * from devlink. This is useful for future analyses of snapshots. | |
4371 | * Multiple snapshots can be created on a region. | |
4372 | * The @snapshot_id should be obtained using the getter function. | |
4373 | * | |
4374 | * @devlink_region: devlink region of the snapshot | |
4375 | * @data_len: size of snapshot data | |
4376 | * @data: snapshot data | |
4377 | * @snapshot_id: snapshot id to be created | |
4378 | * @data_destructor: pointer to destructor function to free data | |
4379 | */ | |
4380 | int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len, | |
4381 | u8 *data, u32 snapshot_id, | |
4382 | devlink_snapshot_data_dest_t *data_destructor) | |
4383 | { | |
4384 | struct devlink *devlink = region->devlink; | |
4385 | struct devlink_snapshot *snapshot; | |
4386 | int err; | |
4387 | ||
4388 | mutex_lock(&devlink->lock); | |
4389 | ||
4390 | /* check if region can hold one more snapshot */ | |
4391 | if (region->cur_snapshots == region->max_snapshots) { | |
4392 | err = -ENOMEM; | |
4393 | goto unlock; | |
4394 | } | |
4395 | ||
4396 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { | |
4397 | err = -EEXIST; | |
4398 | goto unlock; | |
4399 | } | |
4400 | ||
4401 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
4402 | if (!snapshot) { | |
4403 | err = -ENOMEM; | |
4404 | goto unlock; | |
4405 | } | |
4406 | ||
4407 | snapshot->id = snapshot_id; | |
4408 | snapshot->region = region; | |
4409 | snapshot->data = data; | |
4410 | snapshot->data_len = data_len; | |
4411 | snapshot->data_destructor = data_destructor; | |
4412 | ||
4413 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
4414 | ||
4415 | region->cur_snapshots++; | |
4416 | ||
4417 | mutex_unlock(&devlink->lock); | |
4418 | return 0; | |
4419 | ||
4420 | unlock: | |
4421 | mutex_unlock(&devlink->lock); | |
4422 | return err; | |
4423 | } | |
4424 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
4425 | ||
bfcd3a46 JP |
4426 | static int __init devlink_module_init(void) |
4427 | { | |
489111e5 | 4428 | return genl_register_family(&devlink_nl_family); |
bfcd3a46 JP |
4429 | } |
4430 | ||
4431 | static void __exit devlink_module_exit(void) | |
4432 | { | |
4433 | genl_unregister_family(&devlink_nl_family); | |
4434 | } | |
4435 | ||
4436 | module_init(devlink_module_init); | |
4437 | module_exit(devlink_module_exit); | |
4438 | ||
4439 | MODULE_LICENSE("GPL v2"); | |
4440 | MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>"); | |
4441 | MODULE_DESCRIPTION("Network physical device Netlink interface"); | |
4442 | MODULE_ALIAS_GENL_FAMILY(DEVLINK_GENL_NAME); |