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Commit | Line | Data |
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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 | ||
95 | /* devlink_port_mutex | |
96 | * | |
97 | * Shared lock to guard lists of ports in all devlink devices. | |
98 | */ | |
99 | static DEFINE_MUTEX(devlink_port_mutex); | |
100 | ||
101 | static struct net *devlink_net(const struct devlink *devlink) | |
102 | { | |
103 | return read_pnet(&devlink->_net); | |
104 | } | |
105 | ||
106 | static void devlink_net_set(struct devlink *devlink, struct net *net) | |
107 | { | |
108 | write_pnet(&devlink->_net, net); | |
109 | } | |
110 | ||
111 | static struct devlink *devlink_get_from_attrs(struct net *net, | |
112 | struct nlattr **attrs) | |
113 | { | |
114 | struct devlink *devlink; | |
115 | char *busname; | |
116 | char *devname; | |
117 | ||
118 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
119 | return ERR_PTR(-EINVAL); | |
120 | ||
121 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
122 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
123 | ||
124 | list_for_each_entry(devlink, &devlink_list, list) { | |
125 | if (strcmp(devlink->dev->bus->name, busname) == 0 && | |
126 | strcmp(dev_name(devlink->dev), devname) == 0 && | |
127 | net_eq(devlink_net(devlink), net)) | |
128 | return devlink; | |
129 | } | |
130 | ||
131 | return ERR_PTR(-ENODEV); | |
132 | } | |
133 | ||
134 | static struct devlink *devlink_get_from_info(struct genl_info *info) | |
135 | { | |
136 | return devlink_get_from_attrs(genl_info_net(info), info->attrs); | |
137 | } | |
138 | ||
139 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
140 | int port_index) | |
141 | { | |
142 | struct devlink_port *devlink_port; | |
143 | ||
144 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
145 | if (devlink_port->index == port_index) | |
146 | return devlink_port; | |
147 | } | |
148 | return NULL; | |
149 | } | |
150 | ||
151 | static bool devlink_port_index_exists(struct devlink *devlink, int port_index) | |
152 | { | |
153 | return devlink_port_get_by_index(devlink, port_index); | |
154 | } | |
155 | ||
156 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
157 | struct nlattr **attrs) | |
158 | { | |
159 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
160 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
161 | struct devlink_port *devlink_port; | |
162 | ||
163 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
164 | if (!devlink_port) | |
165 | return ERR_PTR(-ENODEV); | |
166 | return devlink_port; | |
167 | } | |
168 | return ERR_PTR(-EINVAL); | |
169 | } | |
170 | ||
171 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
172 | struct genl_info *info) | |
173 | { | |
174 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
175 | } | |
176 | ||
bf797471 JP |
177 | struct devlink_sb { |
178 | struct list_head list; | |
179 | unsigned int index; | |
180 | u32 size; | |
181 | u16 ingress_pools_count; | |
182 | u16 egress_pools_count; | |
183 | u16 ingress_tc_count; | |
184 | u16 egress_tc_count; | |
185 | }; | |
186 | ||
187 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
188 | { | |
189 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
190 | } | |
191 | ||
192 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
193 | unsigned int sb_index) | |
194 | { | |
195 | struct devlink_sb *devlink_sb; | |
196 | ||
197 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
198 | if (devlink_sb->index == sb_index) | |
199 | return devlink_sb; | |
200 | } | |
201 | return NULL; | |
202 | } | |
203 | ||
204 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
205 | unsigned int sb_index) | |
206 | { | |
207 | return devlink_sb_get_by_index(devlink, sb_index); | |
208 | } | |
209 | ||
210 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
211 | struct nlattr **attrs) | |
212 | { | |
213 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
214 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
215 | struct devlink_sb *devlink_sb; | |
216 | ||
217 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
218 | if (!devlink_sb) | |
219 | return ERR_PTR(-ENODEV); | |
220 | return devlink_sb; | |
221 | } | |
222 | return ERR_PTR(-EINVAL); | |
223 | } | |
224 | ||
225 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
226 | struct genl_info *info) | |
227 | { | |
228 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
229 | } | |
230 | ||
231 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
232 | struct nlattr **attrs, | |
233 | u16 *p_pool_index) | |
234 | { | |
235 | u16 val; | |
236 | ||
237 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
238 | return -EINVAL; | |
239 | ||
240 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
241 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
242 | return -EINVAL; | |
243 | *p_pool_index = val; | |
244 | return 0; | |
245 | } | |
246 | ||
247 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
248 | struct genl_info *info, | |
249 | u16 *p_pool_index) | |
250 | { | |
251 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
252 | p_pool_index); | |
253 | } | |
254 | ||
255 | static int | |
256 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
257 | enum devlink_sb_pool_type *p_pool_type) | |
258 | { | |
259 | u8 val; | |
260 | ||
261 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
262 | return -EINVAL; | |
263 | ||
264 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
265 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
266 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
267 | return -EINVAL; | |
268 | *p_pool_type = val; | |
269 | return 0; | |
270 | } | |
271 | ||
272 | static int | |
273 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
274 | enum devlink_sb_pool_type *p_pool_type) | |
275 | { | |
276 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
277 | } | |
278 | ||
279 | static int | |
280 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
281 | enum devlink_sb_threshold_type *p_th_type) | |
282 | { | |
283 | u8 val; | |
284 | ||
285 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
286 | return -EINVAL; | |
287 | ||
288 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
289 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
290 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
291 | return -EINVAL; | |
292 | *p_th_type = val; | |
293 | return 0; | |
294 | } | |
295 | ||
296 | static int | |
297 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
298 | enum devlink_sb_threshold_type *p_th_type) | |
299 | { | |
300 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
301 | } | |
302 | ||
303 | static int | |
304 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
305 | struct nlattr **attrs, | |
306 | enum devlink_sb_pool_type pool_type, | |
307 | u16 *p_tc_index) | |
308 | { | |
309 | u16 val; | |
310 | ||
311 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
312 | return -EINVAL; | |
313 | ||
314 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
315 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
316 | val >= devlink_sb->ingress_tc_count) | |
317 | return -EINVAL; | |
318 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
319 | val >= devlink_sb->egress_tc_count) | |
320 | return -EINVAL; | |
321 | *p_tc_index = val; | |
322 | return 0; | |
323 | } | |
324 | ||
325 | static int | |
326 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
327 | struct genl_info *info, | |
328 | enum devlink_sb_pool_type pool_type, | |
329 | u16 *p_tc_index) | |
330 | { | |
331 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
332 | pool_type, p_tc_index); | |
333 | } | |
334 | ||
1fc2257e JP |
335 | #define DEVLINK_NL_FLAG_NEED_DEVLINK BIT(0) |
336 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(1) | |
bf797471 | 337 | #define DEVLINK_NL_FLAG_NEED_SB BIT(2) |
df38dafd JP |
338 | #define DEVLINK_NL_FLAG_LOCK_PORTS BIT(3) |
339 | /* port is not needed but we need to ensure they don't | |
340 | * change in the middle of command | |
341 | */ | |
bfcd3a46 JP |
342 | |
343 | static int devlink_nl_pre_doit(const struct genl_ops *ops, | |
344 | struct sk_buff *skb, struct genl_info *info) | |
345 | { | |
346 | struct devlink *devlink; | |
347 | ||
348 | mutex_lock(&devlink_mutex); | |
349 | devlink = devlink_get_from_info(info); | |
350 | if (IS_ERR(devlink)) { | |
351 | mutex_unlock(&devlink_mutex); | |
352 | return PTR_ERR(devlink); | |
353 | } | |
1fc2257e JP |
354 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) { |
355 | info->user_ptr[0] = devlink; | |
356 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
357 | struct devlink_port *devlink_port; |
358 | ||
359 | mutex_lock(&devlink_port_mutex); | |
360 | devlink_port = devlink_port_get_from_info(devlink, info); | |
361 | if (IS_ERR(devlink_port)) { | |
362 | mutex_unlock(&devlink_port_mutex); | |
363 | mutex_unlock(&devlink_mutex); | |
364 | return PTR_ERR(devlink_port); | |
365 | } | |
1fc2257e | 366 | info->user_ptr[0] = devlink_port; |
bfcd3a46 | 367 | } |
df38dafd JP |
368 | if (ops->internal_flags & DEVLINK_NL_FLAG_LOCK_PORTS) { |
369 | mutex_lock(&devlink_port_mutex); | |
370 | } | |
bf797471 JP |
371 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_SB) { |
372 | struct devlink_sb *devlink_sb; | |
373 | ||
374 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
375 | if (IS_ERR(devlink_sb)) { | |
376 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) | |
377 | mutex_unlock(&devlink_port_mutex); | |
378 | mutex_unlock(&devlink_mutex); | |
379 | return PTR_ERR(devlink_sb); | |
380 | } | |
381 | info->user_ptr[1] = devlink_sb; | |
382 | } | |
bfcd3a46 JP |
383 | return 0; |
384 | } | |
385 | ||
386 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
387 | struct sk_buff *skb, struct genl_info *info) | |
388 | { | |
df38dafd JP |
389 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT || |
390 | ops->internal_flags & DEVLINK_NL_FLAG_LOCK_PORTS) | |
bfcd3a46 JP |
391 | mutex_unlock(&devlink_port_mutex); |
392 | mutex_unlock(&devlink_mutex); | |
393 | } | |
394 | ||
489111e5 | 395 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
396 | |
397 | enum devlink_multicast_groups { | |
398 | DEVLINK_MCGRP_CONFIG, | |
399 | }; | |
400 | ||
401 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
402 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
403 | }; | |
404 | ||
405 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
406 | { | |
407 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
408 | return -EMSGSIZE; | |
409 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
410 | return -EMSGSIZE; | |
411 | return 0; | |
412 | } | |
413 | ||
414 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, | |
415 | enum devlink_command cmd, u32 portid, | |
416 | u32 seq, int flags) | |
417 | { | |
418 | void *hdr; | |
419 | ||
420 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
421 | if (!hdr) | |
422 | return -EMSGSIZE; | |
423 | ||
424 | if (devlink_nl_put_handle(msg, devlink)) | |
425 | goto nla_put_failure; | |
426 | ||
427 | genlmsg_end(msg, hdr); | |
428 | return 0; | |
429 | ||
430 | nla_put_failure: | |
431 | genlmsg_cancel(msg, hdr); | |
432 | return -EMSGSIZE; | |
433 | } | |
434 | ||
435 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
436 | { | |
437 | struct sk_buff *msg; | |
438 | int err; | |
439 | ||
440 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
441 | ||
442 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
443 | if (!msg) | |
444 | return; | |
445 | ||
446 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
447 | if (err) { | |
448 | nlmsg_free(msg); | |
449 | return; | |
450 | } | |
451 | ||
452 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
453 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
454 | } | |
455 | ||
456 | static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink, | |
457 | struct devlink_port *devlink_port, | |
458 | enum devlink_command cmd, u32 portid, | |
459 | u32 seq, int flags) | |
460 | { | |
461 | void *hdr; | |
462 | ||
463 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
464 | if (!hdr) | |
465 | return -EMSGSIZE; | |
466 | ||
467 | if (devlink_nl_put_handle(msg, devlink)) | |
468 | goto nla_put_failure; | |
469 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
470 | goto nla_put_failure; | |
471 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) | |
472 | goto nla_put_failure; | |
473 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && | |
474 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
475 | devlink_port->desired_type)) | |
476 | goto nla_put_failure; | |
477 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { | |
478 | struct net_device *netdev = devlink_port->type_dev; | |
479 | ||
480 | if (netdev && | |
481 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, | |
482 | netdev->ifindex) || | |
483 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
484 | netdev->name))) | |
485 | goto nla_put_failure; | |
486 | } | |
487 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
488 | struct ib_device *ibdev = devlink_port->type_dev; | |
489 | ||
490 | if (ibdev && | |
491 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
492 | ibdev->name)) | |
493 | goto nla_put_failure; | |
494 | } | |
495 | if (devlink_port->split && | |
496 | nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
497 | devlink_port->split_group)) | |
498 | goto nla_put_failure; | |
499 | ||
500 | genlmsg_end(msg, hdr); | |
501 | return 0; | |
502 | ||
503 | nla_put_failure: | |
504 | genlmsg_cancel(msg, hdr); | |
505 | return -EMSGSIZE; | |
506 | } | |
507 | ||
508 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
509 | enum devlink_command cmd) | |
510 | { | |
511 | struct devlink *devlink = devlink_port->devlink; | |
512 | struct sk_buff *msg; | |
513 | int err; | |
514 | ||
515 | if (!devlink_port->registered) | |
516 | return; | |
517 | ||
518 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); | |
519 | ||
520 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
521 | if (!msg) | |
522 | return; | |
523 | ||
524 | err = devlink_nl_port_fill(msg, devlink, devlink_port, cmd, 0, 0, 0); | |
525 | if (err) { | |
526 | nlmsg_free(msg); | |
527 | return; | |
528 | } | |
529 | ||
530 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
531 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
532 | } | |
533 | ||
534 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) | |
535 | { | |
536 | struct devlink *devlink = info->user_ptr[0]; | |
537 | struct sk_buff *msg; | |
538 | int err; | |
539 | ||
540 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
541 | if (!msg) | |
542 | return -ENOMEM; | |
543 | ||
544 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
545 | info->snd_portid, info->snd_seq, 0); | |
546 | if (err) { | |
547 | nlmsg_free(msg); | |
548 | return err; | |
549 | } | |
550 | ||
551 | return genlmsg_reply(msg, info); | |
552 | } | |
553 | ||
554 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
555 | struct netlink_callback *cb) | |
556 | { | |
557 | struct devlink *devlink; | |
558 | int start = cb->args[0]; | |
559 | int idx = 0; | |
560 | int err; | |
561 | ||
562 | mutex_lock(&devlink_mutex); | |
563 | list_for_each_entry(devlink, &devlink_list, list) { | |
564 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
565 | continue; | |
566 | if (idx < start) { | |
567 | idx++; | |
568 | continue; | |
569 | } | |
570 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
571 | NETLINK_CB(cb->skb).portid, | |
572 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
573 | if (err) | |
574 | goto out; | |
575 | idx++; | |
576 | } | |
577 | out: | |
578 | mutex_unlock(&devlink_mutex); | |
579 | ||
580 | cb->args[0] = idx; | |
581 | return msg->len; | |
582 | } | |
583 | ||
584 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
585 | struct genl_info *info) | |
586 | { | |
1fc2257e JP |
587 | struct devlink_port *devlink_port = info->user_ptr[0]; |
588 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
589 | struct sk_buff *msg; |
590 | int err; | |
591 | ||
592 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
593 | if (!msg) | |
594 | return -ENOMEM; | |
595 | ||
596 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
597 | DEVLINK_CMD_PORT_NEW, | |
598 | info->snd_portid, info->snd_seq, 0); | |
599 | if (err) { | |
600 | nlmsg_free(msg); | |
601 | return err; | |
602 | } | |
603 | ||
604 | return genlmsg_reply(msg, info); | |
605 | } | |
606 | ||
607 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
608 | struct netlink_callback *cb) | |
609 | { | |
610 | struct devlink *devlink; | |
611 | struct devlink_port *devlink_port; | |
612 | int start = cb->args[0]; | |
613 | int idx = 0; | |
614 | int err; | |
615 | ||
616 | mutex_lock(&devlink_mutex); | |
617 | mutex_lock(&devlink_port_mutex); | |
618 | list_for_each_entry(devlink, &devlink_list, list) { | |
619 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
620 | continue; | |
621 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
622 | if (idx < start) { | |
623 | idx++; | |
624 | continue; | |
625 | } | |
626 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
627 | DEVLINK_CMD_NEW, | |
628 | NETLINK_CB(cb->skb).portid, | |
629 | cb->nlh->nlmsg_seq, | |
630 | NLM_F_MULTI); | |
631 | if (err) | |
632 | goto out; | |
633 | idx++; | |
634 | } | |
635 | } | |
636 | out: | |
637 | mutex_unlock(&devlink_port_mutex); | |
638 | mutex_unlock(&devlink_mutex); | |
639 | ||
640 | cb->args[0] = idx; | |
641 | return msg->len; | |
642 | } | |
643 | ||
644 | static int devlink_port_type_set(struct devlink *devlink, | |
645 | struct devlink_port *devlink_port, | |
646 | enum devlink_port_type port_type) | |
647 | ||
648 | { | |
649 | int err; | |
650 | ||
651 | if (devlink->ops && devlink->ops->port_type_set) { | |
652 | if (port_type == DEVLINK_PORT_TYPE_NOTSET) | |
653 | return -EINVAL; | |
6edf1017 ER |
654 | if (port_type == devlink_port->type) |
655 | return 0; | |
bfcd3a46 JP |
656 | err = devlink->ops->port_type_set(devlink_port, port_type); |
657 | if (err) | |
658 | return err; | |
659 | devlink_port->desired_type = port_type; | |
660 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
661 | return 0; | |
662 | } | |
663 | return -EOPNOTSUPP; | |
664 | } | |
665 | ||
666 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, | |
667 | struct genl_info *info) | |
668 | { | |
1fc2257e JP |
669 | struct devlink_port *devlink_port = info->user_ptr[0]; |
670 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
671 | int err; |
672 | ||
673 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
674 | enum devlink_port_type port_type; | |
675 | ||
676 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
677 | err = devlink_port_type_set(devlink, devlink_port, port_type); | |
678 | if (err) | |
679 | return err; | |
680 | } | |
681 | return 0; | |
682 | } | |
683 | ||
684 | static int devlink_port_split(struct devlink *devlink, | |
685 | u32 port_index, u32 count) | |
686 | ||
687 | { | |
688 | if (devlink->ops && devlink->ops->port_split) | |
689 | return devlink->ops->port_split(devlink, port_index, count); | |
690 | return -EOPNOTSUPP; | |
691 | } | |
692 | ||
693 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, | |
694 | struct genl_info *info) | |
695 | { | |
696 | struct devlink *devlink = info->user_ptr[0]; | |
697 | u32 port_index; | |
698 | u32 count; | |
699 | ||
700 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX] || | |
701 | !info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) | |
702 | return -EINVAL; | |
703 | ||
704 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
705 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); | |
706 | return devlink_port_split(devlink, port_index, count); | |
707 | } | |
708 | ||
709 | static int devlink_port_unsplit(struct devlink *devlink, u32 port_index) | |
710 | ||
711 | { | |
712 | if (devlink->ops && devlink->ops->port_unsplit) | |
713 | return devlink->ops->port_unsplit(devlink, port_index); | |
714 | return -EOPNOTSUPP; | |
715 | } | |
716 | ||
717 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
718 | struct genl_info *info) | |
719 | { | |
720 | struct devlink *devlink = info->user_ptr[0]; | |
721 | u32 port_index; | |
722 | ||
723 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) | |
724 | return -EINVAL; | |
725 | ||
726 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
727 | return devlink_port_unsplit(devlink, port_index); | |
728 | } | |
729 | ||
bf797471 JP |
730 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
731 | struct devlink_sb *devlink_sb, | |
732 | enum devlink_command cmd, u32 portid, | |
733 | u32 seq, int flags) | |
734 | { | |
735 | void *hdr; | |
736 | ||
737 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
738 | if (!hdr) | |
739 | return -EMSGSIZE; | |
740 | ||
741 | if (devlink_nl_put_handle(msg, devlink)) | |
742 | goto nla_put_failure; | |
743 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
744 | goto nla_put_failure; | |
745 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
746 | goto nla_put_failure; | |
747 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
748 | devlink_sb->ingress_pools_count)) | |
749 | goto nla_put_failure; | |
750 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
751 | devlink_sb->egress_pools_count)) | |
752 | goto nla_put_failure; | |
753 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
754 | devlink_sb->ingress_tc_count)) | |
755 | goto nla_put_failure; | |
756 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
757 | devlink_sb->egress_tc_count)) | |
758 | goto nla_put_failure; | |
759 | ||
760 | genlmsg_end(msg, hdr); | |
761 | return 0; | |
762 | ||
763 | nla_put_failure: | |
764 | genlmsg_cancel(msg, hdr); | |
765 | return -EMSGSIZE; | |
766 | } | |
767 | ||
768 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
769 | struct genl_info *info) | |
770 | { | |
771 | struct devlink *devlink = info->user_ptr[0]; | |
772 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
773 | struct sk_buff *msg; | |
774 | int err; | |
775 | ||
776 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
777 | if (!msg) | |
778 | return -ENOMEM; | |
779 | ||
780 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
781 | DEVLINK_CMD_SB_NEW, | |
782 | info->snd_portid, info->snd_seq, 0); | |
783 | if (err) { | |
784 | nlmsg_free(msg); | |
785 | return err; | |
786 | } | |
787 | ||
788 | return genlmsg_reply(msg, info); | |
789 | } | |
790 | ||
791 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
792 | struct netlink_callback *cb) | |
793 | { | |
794 | struct devlink *devlink; | |
795 | struct devlink_sb *devlink_sb; | |
796 | int start = cb->args[0]; | |
797 | int idx = 0; | |
798 | int err; | |
799 | ||
800 | mutex_lock(&devlink_mutex); | |
801 | list_for_each_entry(devlink, &devlink_list, list) { | |
802 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
803 | continue; | |
804 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
805 | if (idx < start) { | |
806 | idx++; | |
807 | continue; | |
808 | } | |
809 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
810 | DEVLINK_CMD_SB_NEW, | |
811 | NETLINK_CB(cb->skb).portid, | |
812 | cb->nlh->nlmsg_seq, | |
813 | NLM_F_MULTI); | |
814 | if (err) | |
815 | goto out; | |
816 | idx++; | |
817 | } | |
818 | } | |
819 | out: | |
820 | mutex_unlock(&devlink_mutex); | |
821 | ||
822 | cb->args[0] = idx; | |
823 | return msg->len; | |
824 | } | |
825 | ||
826 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
827 | struct devlink_sb *devlink_sb, | |
828 | u16 pool_index, enum devlink_command cmd, | |
829 | u32 portid, u32 seq, int flags) | |
830 | { | |
831 | struct devlink_sb_pool_info pool_info; | |
832 | void *hdr; | |
833 | int err; | |
834 | ||
835 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
836 | pool_index, &pool_info); | |
837 | if (err) | |
838 | return err; | |
839 | ||
840 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
841 | if (!hdr) | |
842 | return -EMSGSIZE; | |
843 | ||
844 | if (devlink_nl_put_handle(msg, devlink)) | |
845 | goto nla_put_failure; | |
846 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
847 | goto nla_put_failure; | |
848 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
849 | goto nla_put_failure; | |
850 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
851 | goto nla_put_failure; | |
852 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
853 | goto nla_put_failure; | |
854 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
855 | pool_info.threshold_type)) | |
856 | goto nla_put_failure; | |
857 | ||
858 | genlmsg_end(msg, hdr); | |
859 | return 0; | |
860 | ||
861 | nla_put_failure: | |
862 | genlmsg_cancel(msg, hdr); | |
863 | return -EMSGSIZE; | |
864 | } | |
865 | ||
866 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
867 | struct genl_info *info) | |
868 | { | |
869 | struct devlink *devlink = info->user_ptr[0]; | |
870 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
871 | struct sk_buff *msg; | |
872 | u16 pool_index; | |
873 | int err; | |
874 | ||
875 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
876 | &pool_index); | |
877 | if (err) | |
878 | return err; | |
879 | ||
880 | if (!devlink->ops || !devlink->ops->sb_pool_get) | |
881 | return -EOPNOTSUPP; | |
882 | ||
883 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
884 | if (!msg) | |
885 | return -ENOMEM; | |
886 | ||
887 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
888 | DEVLINK_CMD_SB_POOL_NEW, | |
889 | info->snd_portid, info->snd_seq, 0); | |
890 | if (err) { | |
891 | nlmsg_free(msg); | |
892 | return err; | |
893 | } | |
894 | ||
895 | return genlmsg_reply(msg, info); | |
896 | } | |
897 | ||
898 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
899 | struct devlink *devlink, | |
900 | struct devlink_sb *devlink_sb, | |
901 | u32 portid, u32 seq) | |
902 | { | |
903 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
904 | u16 pool_index; | |
905 | int err; | |
906 | ||
907 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
908 | if (*p_idx < start) { | |
909 | (*p_idx)++; | |
910 | continue; | |
911 | } | |
912 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
913 | devlink_sb, | |
914 | pool_index, | |
915 | DEVLINK_CMD_SB_POOL_NEW, | |
916 | portid, seq, NLM_F_MULTI); | |
917 | if (err) | |
918 | return err; | |
919 | (*p_idx)++; | |
920 | } | |
921 | return 0; | |
922 | } | |
923 | ||
924 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
925 | struct netlink_callback *cb) | |
926 | { | |
927 | struct devlink *devlink; | |
928 | struct devlink_sb *devlink_sb; | |
929 | int start = cb->args[0]; | |
930 | int idx = 0; | |
931 | int err; | |
932 | ||
933 | mutex_lock(&devlink_mutex); | |
934 | list_for_each_entry(devlink, &devlink_list, list) { | |
935 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
936 | !devlink->ops || !devlink->ops->sb_pool_get) | |
937 | continue; | |
938 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
939 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
940 | devlink_sb, | |
941 | NETLINK_CB(cb->skb).portid, | |
942 | cb->nlh->nlmsg_seq); | |
943 | if (err && err != -EOPNOTSUPP) | |
944 | goto out; | |
945 | } | |
946 | } | |
947 | out: | |
948 | mutex_unlock(&devlink_mutex); | |
949 | ||
950 | cb->args[0] = idx; | |
951 | return msg->len; | |
952 | } | |
953 | ||
954 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
955 | u16 pool_index, u32 size, | |
956 | enum devlink_sb_threshold_type threshold_type) | |
957 | ||
958 | { | |
959 | const struct devlink_ops *ops = devlink->ops; | |
960 | ||
961 | if (ops && ops->sb_pool_set) | |
962 | return ops->sb_pool_set(devlink, sb_index, pool_index, | |
963 | size, threshold_type); | |
964 | return -EOPNOTSUPP; | |
965 | } | |
966 | ||
967 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
968 | struct genl_info *info) | |
969 | { | |
970 | struct devlink *devlink = info->user_ptr[0]; | |
971 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
972 | enum devlink_sb_threshold_type threshold_type; | |
973 | u16 pool_index; | |
974 | u32 size; | |
975 | int err; | |
976 | ||
977 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
978 | &pool_index); | |
979 | if (err) | |
980 | return err; | |
981 | ||
982 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
983 | if (err) | |
984 | return err; | |
985 | ||
986 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
987 | return -EINVAL; | |
988 | ||
989 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
990 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
991 | pool_index, size, threshold_type); | |
992 | } | |
993 | ||
994 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
995 | struct devlink *devlink, | |
996 | struct devlink_port *devlink_port, | |
997 | struct devlink_sb *devlink_sb, | |
998 | u16 pool_index, | |
999 | enum devlink_command cmd, | |
1000 | u32 portid, u32 seq, int flags) | |
1001 | { | |
df38dafd | 1002 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1003 | u32 threshold; |
1004 | void *hdr; | |
1005 | int err; | |
1006 | ||
df38dafd JP |
1007 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
1008 | pool_index, &threshold); | |
bf797471 JP |
1009 | if (err) |
1010 | return err; | |
1011 | ||
1012 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1013 | if (!hdr) | |
1014 | return -EMSGSIZE; | |
1015 | ||
1016 | if (devlink_nl_put_handle(msg, devlink)) | |
1017 | goto nla_put_failure; | |
1018 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1019 | goto nla_put_failure; | |
1020 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1021 | goto nla_put_failure; | |
1022 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1023 | goto nla_put_failure; | |
1024 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1025 | goto nla_put_failure; | |
1026 | ||
df38dafd JP |
1027 | if (ops->sb_occ_port_pool_get) { |
1028 | u32 cur; | |
1029 | u32 max; | |
1030 | ||
1031 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
1032 | pool_index, &cur, &max); | |
1033 | if (err && err != -EOPNOTSUPP) | |
1034 | return err; | |
1035 | if (!err) { | |
1036 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1037 | goto nla_put_failure; | |
1038 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1039 | goto nla_put_failure; | |
1040 | } | |
1041 | } | |
1042 | ||
bf797471 JP |
1043 | genlmsg_end(msg, hdr); |
1044 | return 0; | |
1045 | ||
1046 | nla_put_failure: | |
1047 | genlmsg_cancel(msg, hdr); | |
1048 | return -EMSGSIZE; | |
1049 | } | |
1050 | ||
1051 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
1052 | struct genl_info *info) | |
1053 | { | |
1054 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1055 | struct devlink *devlink = devlink_port->devlink; | |
1056 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1057 | struct sk_buff *msg; | |
1058 | u16 pool_index; | |
1059 | int err; | |
1060 | ||
1061 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1062 | &pool_index); | |
1063 | if (err) | |
1064 | return err; | |
1065 | ||
1066 | if (!devlink->ops || !devlink->ops->sb_port_pool_get) | |
1067 | return -EOPNOTSUPP; | |
1068 | ||
1069 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1070 | if (!msg) | |
1071 | return -ENOMEM; | |
1072 | ||
1073 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
1074 | devlink_sb, pool_index, | |
1075 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1076 | info->snd_portid, info->snd_seq, 0); | |
1077 | if (err) { | |
1078 | nlmsg_free(msg); | |
1079 | return err; | |
1080 | } | |
1081 | ||
1082 | return genlmsg_reply(msg, info); | |
1083 | } | |
1084 | ||
1085 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
1086 | struct devlink *devlink, | |
1087 | struct devlink_sb *devlink_sb, | |
1088 | u32 portid, u32 seq) | |
1089 | { | |
1090 | struct devlink_port *devlink_port; | |
1091 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
1092 | u16 pool_index; | |
1093 | int err; | |
1094 | ||
1095 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1096 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
1097 | if (*p_idx < start) { | |
1098 | (*p_idx)++; | |
1099 | continue; | |
1100 | } | |
1101 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
1102 | devlink_port, | |
1103 | devlink_sb, | |
1104 | pool_index, | |
1105 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1106 | portid, seq, | |
1107 | NLM_F_MULTI); | |
1108 | if (err) | |
1109 | return err; | |
1110 | (*p_idx)++; | |
1111 | } | |
1112 | } | |
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
1117 | struct netlink_callback *cb) | |
1118 | { | |
1119 | struct devlink *devlink; | |
1120 | struct devlink_sb *devlink_sb; | |
1121 | int start = cb->args[0]; | |
1122 | int idx = 0; | |
1123 | int err; | |
1124 | ||
1125 | mutex_lock(&devlink_mutex); | |
1126 | mutex_lock(&devlink_port_mutex); | |
1127 | list_for_each_entry(devlink, &devlink_list, list) { | |
1128 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1129 | !devlink->ops || !devlink->ops->sb_port_pool_get) | |
1130 | continue; | |
1131 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
1132 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
1133 | devlink, devlink_sb, | |
1134 | NETLINK_CB(cb->skb).portid, | |
1135 | cb->nlh->nlmsg_seq); | |
1136 | if (err && err != -EOPNOTSUPP) | |
1137 | goto out; | |
1138 | } | |
1139 | } | |
1140 | out: | |
1141 | mutex_unlock(&devlink_port_mutex); | |
1142 | mutex_unlock(&devlink_mutex); | |
1143 | ||
1144 | cb->args[0] = idx; | |
1145 | return msg->len; | |
1146 | } | |
1147 | ||
1148 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
1149 | unsigned int sb_index, u16 pool_index, | |
1150 | u32 threshold) | |
1151 | ||
1152 | { | |
1153 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1154 | ||
1155 | if (ops && ops->sb_port_pool_set) | |
1156 | return ops->sb_port_pool_set(devlink_port, sb_index, | |
1157 | pool_index, threshold); | |
1158 | return -EOPNOTSUPP; | |
1159 | } | |
1160 | ||
1161 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
1162 | struct genl_info *info) | |
1163 | { | |
1164 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1165 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1166 | u16 pool_index; | |
1167 | u32 threshold; | |
1168 | int err; | |
1169 | ||
1170 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1171 | &pool_index); | |
1172 | if (err) | |
1173 | return err; | |
1174 | ||
1175 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1176 | return -EINVAL; | |
1177 | ||
1178 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1179 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
1180 | pool_index, threshold); | |
1181 | } | |
1182 | ||
1183 | static int | |
1184 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
1185 | struct devlink_port *devlink_port, | |
1186 | struct devlink_sb *devlink_sb, u16 tc_index, | |
1187 | enum devlink_sb_pool_type pool_type, | |
1188 | enum devlink_command cmd, | |
1189 | u32 portid, u32 seq, int flags) | |
1190 | { | |
df38dafd | 1191 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1192 | u16 pool_index; |
1193 | u32 threshold; | |
1194 | void *hdr; | |
1195 | int err; | |
1196 | ||
df38dafd JP |
1197 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
1198 | tc_index, pool_type, | |
1199 | &pool_index, &threshold); | |
bf797471 JP |
1200 | if (err) |
1201 | return err; | |
1202 | ||
1203 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1204 | if (!hdr) | |
1205 | return -EMSGSIZE; | |
1206 | ||
1207 | if (devlink_nl_put_handle(msg, devlink)) | |
1208 | goto nla_put_failure; | |
1209 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1210 | goto nla_put_failure; | |
1211 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1212 | goto nla_put_failure; | |
1213 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
1214 | goto nla_put_failure; | |
1215 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
1216 | goto nla_put_failure; | |
1217 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1218 | goto nla_put_failure; | |
1219 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1220 | goto nla_put_failure; | |
1221 | ||
df38dafd JP |
1222 | if (ops->sb_occ_tc_port_bind_get) { |
1223 | u32 cur; | |
1224 | u32 max; | |
1225 | ||
1226 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
1227 | devlink_sb->index, | |
1228 | tc_index, pool_type, | |
1229 | &cur, &max); | |
1230 | if (err && err != -EOPNOTSUPP) | |
1231 | return err; | |
1232 | if (!err) { | |
1233 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1234 | goto nla_put_failure; | |
1235 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1236 | goto nla_put_failure; | |
1237 | } | |
1238 | } | |
1239 | ||
bf797471 JP |
1240 | genlmsg_end(msg, hdr); |
1241 | return 0; | |
1242 | ||
1243 | nla_put_failure: | |
1244 | genlmsg_cancel(msg, hdr); | |
1245 | return -EMSGSIZE; | |
1246 | } | |
1247 | ||
1248 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
1249 | struct genl_info *info) | |
1250 | { | |
1251 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1252 | struct devlink *devlink = devlink_port->devlink; | |
1253 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1254 | struct sk_buff *msg; | |
1255 | enum devlink_sb_pool_type pool_type; | |
1256 | u16 tc_index; | |
1257 | int err; | |
1258 | ||
1259 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1260 | if (err) | |
1261 | return err; | |
1262 | ||
1263 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1264 | pool_type, &tc_index); | |
1265 | if (err) | |
1266 | return err; | |
1267 | ||
1268 | if (!devlink->ops || !devlink->ops->sb_tc_pool_bind_get) | |
1269 | return -EOPNOTSUPP; | |
1270 | ||
1271 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1272 | if (!msg) | |
1273 | return -ENOMEM; | |
1274 | ||
1275 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
1276 | devlink_sb, tc_index, pool_type, | |
1277 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1278 | info->snd_portid, | |
1279 | info->snd_seq, 0); | |
1280 | if (err) { | |
1281 | nlmsg_free(msg); | |
1282 | return err; | |
1283 | } | |
1284 | ||
1285 | return genlmsg_reply(msg, info); | |
1286 | } | |
1287 | ||
1288 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1289 | int start, int *p_idx, | |
1290 | struct devlink *devlink, | |
1291 | struct devlink_sb *devlink_sb, | |
1292 | u32 portid, u32 seq) | |
1293 | { | |
1294 | struct devlink_port *devlink_port; | |
1295 | u16 tc_index; | |
1296 | int err; | |
1297 | ||
1298 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1299 | for (tc_index = 0; | |
1300 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
1301 | if (*p_idx < start) { | |
1302 | (*p_idx)++; | |
1303 | continue; | |
1304 | } | |
1305 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1306 | devlink_port, | |
1307 | devlink_sb, | |
1308 | tc_index, | |
1309 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
1310 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1311 | portid, seq, | |
1312 | NLM_F_MULTI); | |
1313 | if (err) | |
1314 | return err; | |
1315 | (*p_idx)++; | |
1316 | } | |
1317 | for (tc_index = 0; | |
1318 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
1319 | if (*p_idx < start) { | |
1320 | (*p_idx)++; | |
1321 | continue; | |
1322 | } | |
1323 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1324 | devlink_port, | |
1325 | devlink_sb, | |
1326 | tc_index, | |
1327 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
1328 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1329 | portid, seq, | |
1330 | NLM_F_MULTI); | |
1331 | if (err) | |
1332 | return err; | |
1333 | (*p_idx)++; | |
1334 | } | |
1335 | } | |
1336 | return 0; | |
1337 | } | |
1338 | ||
1339 | static int | |
1340 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1341 | struct netlink_callback *cb) | |
1342 | { | |
1343 | struct devlink *devlink; | |
1344 | struct devlink_sb *devlink_sb; | |
1345 | int start = cb->args[0]; | |
1346 | int idx = 0; | |
1347 | int err; | |
1348 | ||
1349 | mutex_lock(&devlink_mutex); | |
1350 | mutex_lock(&devlink_port_mutex); | |
1351 | list_for_each_entry(devlink, &devlink_list, list) { | |
1352 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1353 | !devlink->ops || !devlink->ops->sb_tc_pool_bind_get) | |
1354 | continue; | |
1355 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
1356 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
1357 | devlink, | |
1358 | devlink_sb, | |
1359 | NETLINK_CB(cb->skb).portid, | |
1360 | cb->nlh->nlmsg_seq); | |
1361 | if (err && err != -EOPNOTSUPP) | |
1362 | goto out; | |
1363 | } | |
1364 | } | |
1365 | out: | |
1366 | mutex_unlock(&devlink_port_mutex); | |
1367 | mutex_unlock(&devlink_mutex); | |
1368 | ||
1369 | cb->args[0] = idx; | |
1370 | return msg->len; | |
1371 | } | |
1372 | ||
1373 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
1374 | unsigned int sb_index, u16 tc_index, | |
1375 | enum devlink_sb_pool_type pool_type, | |
1376 | u16 pool_index, u32 threshold) | |
1377 | ||
1378 | { | |
1379 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1380 | ||
1381 | if (ops && ops->sb_tc_pool_bind_set) | |
1382 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, | |
1383 | tc_index, pool_type, | |
1384 | pool_index, threshold); | |
1385 | return -EOPNOTSUPP; | |
1386 | } | |
1387 | ||
1388 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
1389 | struct genl_info *info) | |
1390 | { | |
1391 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1392 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1393 | enum devlink_sb_pool_type pool_type; | |
1394 | u16 tc_index; | |
1395 | u16 pool_index; | |
1396 | u32 threshold; | |
1397 | int err; | |
1398 | ||
1399 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1400 | if (err) | |
1401 | return err; | |
1402 | ||
1403 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1404 | pool_type, &tc_index); | |
1405 | if (err) | |
1406 | return err; | |
1407 | ||
1408 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1409 | &pool_index); | |
1410 | if (err) | |
1411 | return err; | |
1412 | ||
1413 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1414 | return -EINVAL; | |
1415 | ||
1416 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1417 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
1418 | tc_index, pool_type, | |
1419 | pool_index, threshold); | |
1420 | } | |
1421 | ||
df38dafd JP |
1422 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
1423 | struct genl_info *info) | |
1424 | { | |
1425 | struct devlink *devlink = info->user_ptr[0]; | |
1426 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1427 | const struct devlink_ops *ops = devlink->ops; | |
1428 | ||
1429 | if (ops && ops->sb_occ_snapshot) | |
1430 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); | |
1431 | return -EOPNOTSUPP; | |
1432 | } | |
1433 | ||
1434 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
1435 | struct genl_info *info) | |
1436 | { | |
1437 | struct devlink *devlink = info->user_ptr[0]; | |
1438 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1439 | const struct devlink_ops *ops = devlink->ops; | |
1440 | ||
1441 | if (ops && ops->sb_occ_max_clear) | |
1442 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); | |
1443 | return -EOPNOTSUPP; | |
1444 | } | |
1445 | ||
21e3d2dd JP |
1446 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
1447 | enum devlink_command cmd, u32 portid, | |
1448 | u32 seq, int flags) | |
08f4b591 | 1449 | { |
59bfde01 | 1450 | const struct devlink_ops *ops = devlink->ops; |
f43e9b06 | 1451 | u8 inline_mode, encap_mode; |
08f4b591 | 1452 | void *hdr; |
59bfde01 RD |
1453 | int err = 0; |
1454 | u16 mode; | |
08f4b591 OG |
1455 | |
1456 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1457 | if (!hdr) | |
1458 | return -EMSGSIZE; | |
1459 | ||
59bfde01 RD |
1460 | err = devlink_nl_put_handle(msg, devlink); |
1461 | if (err) | |
1a6aa36b | 1462 | goto nla_put_failure; |
08f4b591 | 1463 | |
4456f61c JP |
1464 | if (ops->eswitch_mode_get) { |
1465 | err = ops->eswitch_mode_get(devlink, &mode); | |
1466 | if (err) | |
1467 | goto nla_put_failure; | |
1468 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
1469 | if (err) | |
1470 | goto nla_put_failure; | |
1471 | } | |
59bfde01 RD |
1472 | |
1473 | if (ops->eswitch_inline_mode_get) { | |
1474 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
1475 | if (err) | |
1a6aa36b | 1476 | goto nla_put_failure; |
59bfde01 RD |
1477 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
1478 | inline_mode); | |
1479 | if (err) | |
1a6aa36b | 1480 | goto nla_put_failure; |
59bfde01 | 1481 | } |
08f4b591 | 1482 | |
f43e9b06 RD |
1483 | if (ops->eswitch_encap_mode_get) { |
1484 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
1485 | if (err) | |
1486 | goto nla_put_failure; | |
1487 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
1488 | if (err) | |
1489 | goto nla_put_failure; | |
1490 | } | |
1491 | ||
08f4b591 OG |
1492 | genlmsg_end(msg, hdr); |
1493 | return 0; | |
1494 | ||
1a6aa36b | 1495 | nla_put_failure: |
08f4b591 | 1496 | genlmsg_cancel(msg, hdr); |
59bfde01 | 1497 | return err; |
08f4b591 OG |
1498 | } |
1499 | ||
adf200f3 JP |
1500 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
1501 | struct genl_info *info) | |
08f4b591 OG |
1502 | { |
1503 | struct devlink *devlink = info->user_ptr[0]; | |
1504 | const struct devlink_ops *ops = devlink->ops; | |
1505 | struct sk_buff *msg; | |
08f4b591 OG |
1506 | int err; |
1507 | ||
4456f61c | 1508 | if (!ops) |
08f4b591 OG |
1509 | return -EOPNOTSUPP; |
1510 | ||
08f4b591 OG |
1511 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1512 | if (!msg) | |
1513 | return -ENOMEM; | |
1514 | ||
21e3d2dd JP |
1515 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
1516 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
1517 | |
1518 | if (err) { | |
1519 | nlmsg_free(msg); | |
1520 | return err; | |
1521 | } | |
1522 | ||
1523 | return genlmsg_reply(msg, info); | |
1524 | } | |
1525 | ||
adf200f3 JP |
1526 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
1527 | struct genl_info *info) | |
08f4b591 OG |
1528 | { |
1529 | struct devlink *devlink = info->user_ptr[0]; | |
1530 | const struct devlink_ops *ops = devlink->ops; | |
f43e9b06 | 1531 | u8 inline_mode, encap_mode; |
59bfde01 | 1532 | int err = 0; |
f43e9b06 | 1533 | u16 mode; |
08f4b591 | 1534 | |
59bfde01 RD |
1535 | if (!ops) |
1536 | return -EOPNOTSUPP; | |
08f4b591 | 1537 | |
59bfde01 RD |
1538 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
1539 | if (!ops->eswitch_mode_set) | |
1540 | return -EOPNOTSUPP; | |
1541 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
1542 | err = ops->eswitch_mode_set(devlink, mode); | |
1543 | if (err) | |
1544 | return err; | |
1545 | } | |
08f4b591 | 1546 | |
59bfde01 RD |
1547 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
1548 | if (!ops->eswitch_inline_mode_set) | |
1549 | return -EOPNOTSUPP; | |
1550 | inline_mode = nla_get_u8( | |
1551 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
1552 | err = ops->eswitch_inline_mode_set(devlink, inline_mode); | |
1553 | if (err) | |
1554 | return err; | |
1555 | } | |
f43e9b06 RD |
1556 | |
1557 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
1558 | if (!ops->eswitch_encap_mode_set) | |
1559 | return -EOPNOTSUPP; | |
1560 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
1561 | err = ops->eswitch_encap_mode_set(devlink, encap_mode); | |
1562 | if (err) | |
1563 | return err; | |
1564 | } | |
1565 | ||
1555d204 AS |
1566 | return 0; |
1567 | } | |
1568 | ||
1569 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
1570 | struct devlink_dpipe_match *match) | |
1571 | { | |
1572 | struct devlink_dpipe_header *header = match->header; | |
1573 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
1574 | struct nlattr *match_attr; | |
1575 | ||
1576 | match_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_MATCH); | |
1577 | if (!match_attr) | |
1578 | return -EMSGSIZE; | |
1579 | ||
1580 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
1581 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
1582 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1583 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1584 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1585 | goto nla_put_failure; | |
1586 | ||
1587 | nla_nest_end(skb, match_attr); | |
1588 | return 0; | |
1589 | ||
1590 | nla_put_failure: | |
1591 | nla_nest_cancel(skb, match_attr); | |
1592 | return -EMSGSIZE; | |
1593 | } | |
1594 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
1595 | ||
1596 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
1597 | struct sk_buff *skb) | |
1598 | { | |
1599 | struct nlattr *matches_attr; | |
1600 | ||
1601 | matches_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1602 | if (!matches_attr) | |
1603 | return -EMSGSIZE; | |
1604 | ||
1605 | if (table->table_ops->matches_dump(table->priv, skb)) | |
1606 | goto nla_put_failure; | |
1607 | ||
1608 | nla_nest_end(skb, matches_attr); | |
1609 | return 0; | |
1610 | ||
1611 | nla_put_failure: | |
1612 | nla_nest_cancel(skb, matches_attr); | |
1613 | return -EMSGSIZE; | |
1614 | } | |
1615 | ||
1616 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
1617 | struct devlink_dpipe_action *action) | |
1618 | { | |
1619 | struct devlink_dpipe_header *header = action->header; | |
1620 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
1621 | struct nlattr *action_attr; | |
1622 | ||
1623 | action_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ACTION); | |
1624 | if (!action_attr) | |
1625 | return -EMSGSIZE; | |
1626 | ||
1627 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
1628 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
1629 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1630 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1631 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1632 | goto nla_put_failure; | |
1633 | ||
1634 | nla_nest_end(skb, action_attr); | |
1635 | return 0; | |
1636 | ||
1637 | nla_put_failure: | |
1638 | nla_nest_cancel(skb, action_attr); | |
1639 | return -EMSGSIZE; | |
1640 | } | |
1641 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
1642 | ||
1643 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
1644 | struct sk_buff *skb) | |
1645 | { | |
1646 | struct nlattr *actions_attr; | |
1647 | ||
1648 | actions_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1649 | if (!actions_attr) | |
1650 | return -EMSGSIZE; | |
1651 | ||
1652 | if (table->table_ops->actions_dump(table->priv, skb)) | |
1653 | goto nla_put_failure; | |
1654 | ||
1655 | nla_nest_end(skb, actions_attr); | |
1656 | return 0; | |
1657 | ||
1658 | nla_put_failure: | |
1659 | nla_nest_cancel(skb, actions_attr); | |
1660 | return -EMSGSIZE; | |
1661 | } | |
1662 | ||
1663 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
1664 | struct devlink_dpipe_table *table) | |
1665 | { | |
1666 | struct nlattr *table_attr; | |
ffd3cdcc | 1667 | u64 table_size; |
1555d204 | 1668 | |
ffd3cdcc | 1669 | table_size = table->table_ops->size_get(table->priv); |
1555d204 AS |
1670 | table_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1671 | if (!table_attr) | |
1672 | return -EMSGSIZE; | |
1673 | ||
1674 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 1675 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
1676 | DEVLINK_ATTR_PAD)) |
1677 | goto nla_put_failure; | |
1678 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
1679 | table->counters_enabled)) | |
1680 | goto nla_put_failure; | |
1681 | ||
1682 | if (devlink_dpipe_matches_put(table, skb)) | |
1683 | goto nla_put_failure; | |
1684 | ||
1685 | if (devlink_dpipe_actions_put(table, skb)) | |
1686 | goto nla_put_failure; | |
1687 | ||
1688 | nla_nest_end(skb, table_attr); | |
1689 | return 0; | |
1690 | ||
1691 | nla_put_failure: | |
1692 | nla_nest_cancel(skb, table_attr); | |
1693 | return -EMSGSIZE; | |
1694 | } | |
1695 | ||
1696 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
1697 | struct genl_info *info) | |
1698 | { | |
1699 | int err; | |
1700 | ||
1701 | if (*pskb) { | |
1702 | err = genlmsg_reply(*pskb, info); | |
1703 | if (err) | |
1704 | return err; | |
1705 | } | |
1706 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1707 | if (!*pskb) | |
1708 | return -ENOMEM; | |
1709 | return 0; | |
1710 | } | |
1711 | ||
1712 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
1713 | enum devlink_command cmd, int flags, | |
1714 | struct list_head *dpipe_tables, | |
1715 | const char *table_name) | |
1716 | { | |
1717 | struct devlink *devlink = info->user_ptr[0]; | |
1718 | struct devlink_dpipe_table *table; | |
1719 | struct nlattr *tables_attr; | |
1720 | struct sk_buff *skb = NULL; | |
1721 | struct nlmsghdr *nlh; | |
1722 | bool incomplete; | |
1723 | void *hdr; | |
1724 | int i; | |
1725 | int err; | |
1726 | ||
1727 | table = list_first_entry(dpipe_tables, | |
1728 | struct devlink_dpipe_table, list); | |
1729 | start_again: | |
1730 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1731 | if (err) | |
1732 | return err; | |
1733 | ||
1734 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1735 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
1736 | if (!hdr) { |
1737 | nlmsg_free(skb); | |
1555d204 | 1738 | return -EMSGSIZE; |
6044bd4a | 1739 | } |
1555d204 AS |
1740 | |
1741 | if (devlink_nl_put_handle(skb, devlink)) | |
1742 | goto nla_put_failure; | |
1743 | tables_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLES); | |
1744 | if (!tables_attr) | |
1745 | goto nla_put_failure; | |
1746 | ||
1747 | i = 0; | |
1748 | incomplete = false; | |
1749 | list_for_each_entry_from(table, dpipe_tables, list) { | |
1750 | if (!table_name) { | |
1751 | err = devlink_dpipe_table_put(skb, table); | |
1752 | if (err) { | |
1753 | if (!i) | |
1754 | goto err_table_put; | |
1755 | incomplete = true; | |
1756 | break; | |
1757 | } | |
1758 | } else { | |
1759 | if (!strcmp(table->name, table_name)) { | |
1760 | err = devlink_dpipe_table_put(skb, table); | |
1761 | if (err) | |
1762 | break; | |
1763 | } | |
1764 | } | |
1765 | i++; | |
1766 | } | |
1767 | ||
1768 | nla_nest_end(skb, tables_attr); | |
1769 | genlmsg_end(skb, hdr); | |
1770 | if (incomplete) | |
1771 | goto start_again; | |
1772 | ||
1773 | send_done: | |
1774 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1775 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
1776 | if (!nlh) { | |
1777 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1778 | if (err) | |
865e97e4 | 1779 | return err; |
1555d204 AS |
1780 | goto send_done; |
1781 | } | |
1782 | ||
1783 | return genlmsg_reply(skb, info); | |
1784 | ||
1785 | nla_put_failure: | |
1786 | err = -EMSGSIZE; | |
1787 | err_table_put: | |
1555d204 AS |
1788 | genlmsg_cancel(skb, hdr); |
1789 | nlmsg_free(skb); | |
1790 | return err; | |
1791 | } | |
1792 | ||
1793 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
1794 | struct genl_info *info) | |
1795 | { | |
1796 | struct devlink *devlink = info->user_ptr[0]; | |
1797 | const char *table_name = NULL; | |
1798 | ||
1799 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
1800 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
1801 | ||
1802 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
1803 | &devlink->dpipe_table_list, | |
1804 | table_name); | |
1805 | } | |
1806 | ||
1807 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
1808 | struct devlink_dpipe_value *value) | |
1809 | { | |
1810 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
1811 | value->value_size, value->value)) | |
1812 | return -EMSGSIZE; | |
1813 | if (value->mask) | |
1814 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
1815 | value->value_size, value->mask)) | |
1816 | return -EMSGSIZE; | |
1817 | if (value->mapping_valid) | |
1818 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
1819 | value->mapping_value)) | |
1820 | return -EMSGSIZE; | |
1821 | return 0; | |
1822 | } | |
1823 | ||
1824 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
1825 | struct devlink_dpipe_value *value) | |
1826 | { | |
1827 | if (!value->action) | |
1828 | return -EINVAL; | |
1829 | if (devlink_dpipe_action_put(skb, value->action)) | |
1830 | return -EMSGSIZE; | |
1831 | if (devlink_dpipe_value_put(skb, value)) | |
1832 | return -EMSGSIZE; | |
1833 | return 0; | |
1834 | } | |
1835 | ||
1836 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
1837 | struct devlink_dpipe_value *values, | |
1838 | unsigned int values_count) | |
1839 | { | |
1840 | struct nlattr *action_attr; | |
1841 | int i; | |
1842 | int err; | |
1843 | ||
1844 | for (i = 0; i < values_count; i++) { | |
1845 | action_attr = nla_nest_start(skb, | |
1846 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1847 | if (!action_attr) | |
1848 | return -EMSGSIZE; | |
1849 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
1850 | if (err) | |
1851 | goto err_action_value_put; | |
1852 | nla_nest_end(skb, action_attr); | |
1853 | } | |
1854 | return 0; | |
1855 | ||
1856 | err_action_value_put: | |
1857 | nla_nest_cancel(skb, action_attr); | |
1858 | return err; | |
1859 | } | |
1860 | ||
1861 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
1862 | struct devlink_dpipe_value *value) | |
1863 | { | |
1864 | if (!value->match) | |
1865 | return -EINVAL; | |
1866 | if (devlink_dpipe_match_put(skb, value->match)) | |
1867 | return -EMSGSIZE; | |
1868 | if (devlink_dpipe_value_put(skb, value)) | |
1869 | return -EMSGSIZE; | |
1870 | return 0; | |
1871 | } | |
1872 | ||
1873 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
1874 | struct devlink_dpipe_value *values, | |
1875 | unsigned int values_count) | |
1876 | { | |
1877 | struct nlattr *match_attr; | |
1878 | int i; | |
1879 | int err; | |
1880 | ||
1881 | for (i = 0; i < values_count; i++) { | |
1882 | match_attr = nla_nest_start(skb, | |
1883 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1884 | if (!match_attr) | |
1885 | return -EMSGSIZE; | |
1886 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
1887 | if (err) | |
1888 | goto err_match_value_put; | |
1889 | nla_nest_end(skb, match_attr); | |
1890 | } | |
1891 | return 0; | |
1892 | ||
1893 | err_match_value_put: | |
1894 | nla_nest_cancel(skb, match_attr); | |
1895 | return err; | |
1896 | } | |
1897 | ||
1898 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
1899 | struct devlink_dpipe_entry *entry) | |
1900 | { | |
1901 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
1902 | int err; | |
1903 | ||
1904 | entry_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ENTRY); | |
1905 | if (!entry_attr) | |
1906 | return -EMSGSIZE; | |
1907 | ||
1908 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
1909 | DEVLINK_ATTR_PAD)) | |
1910 | goto nla_put_failure; | |
1911 | if (entry->counter_valid) | |
1912 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
1913 | entry->counter, DEVLINK_ATTR_PAD)) | |
1914 | goto nla_put_failure; | |
1915 | ||
1916 | matches_attr = nla_nest_start(skb, | |
1917 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1918 | if (!matches_attr) | |
1919 | goto nla_put_failure; | |
1920 | ||
1921 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
1922 | entry->match_values_count); | |
1923 | if (err) { | |
1924 | nla_nest_cancel(skb, matches_attr); | |
1925 | goto err_match_values_put; | |
1926 | } | |
1927 | nla_nest_end(skb, matches_attr); | |
1928 | ||
1929 | actions_attr = nla_nest_start(skb, | |
1930 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1931 | if (!actions_attr) | |
1932 | goto nla_put_failure; | |
1933 | ||
1934 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
1935 | entry->action_values_count); | |
1936 | if (err) { | |
1937 | nla_nest_cancel(skb, actions_attr); | |
1938 | goto err_action_values_put; | |
1939 | } | |
1940 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 1941 | |
1555d204 | 1942 | nla_nest_end(skb, entry_attr); |
59bfde01 | 1943 | return 0; |
1555d204 AS |
1944 | |
1945 | nla_put_failure: | |
1946 | err = -EMSGSIZE; | |
1947 | err_match_values_put: | |
1948 | err_action_values_put: | |
1949 | nla_nest_cancel(skb, entry_attr); | |
1950 | return err; | |
1951 | } | |
1952 | ||
1953 | static struct devlink_dpipe_table * | |
1954 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
1955 | const char *table_name) | |
1956 | { | |
1957 | struct devlink_dpipe_table *table; | |
1958 | ||
1959 | list_for_each_entry_rcu(table, dpipe_tables, list) { | |
1960 | if (!strcmp(table->name, table_name)) | |
1961 | return table; | |
1962 | } | |
1963 | return NULL; | |
1964 | } | |
1965 | ||
1966 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
1967 | { | |
1968 | struct devlink *devlink; | |
1969 | int err; | |
1970 | ||
1971 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
1972 | dump_ctx->info); | |
1973 | if (err) | |
1974 | return err; | |
1975 | ||
1976 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
1977 | dump_ctx->info->snd_portid, | |
1978 | dump_ctx->info->snd_seq, | |
1979 | &devlink_nl_family, NLM_F_MULTI, | |
1980 | dump_ctx->cmd); | |
1981 | if (!dump_ctx->hdr) | |
1982 | goto nla_put_failure; | |
1983 | ||
1984 | devlink = dump_ctx->info->user_ptr[0]; | |
1985 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
1986 | goto nla_put_failure; | |
1987 | dump_ctx->nest = nla_nest_start(dump_ctx->skb, | |
1988 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1989 | if (!dump_ctx->nest) | |
1990 | goto nla_put_failure; | |
1991 | return 0; | |
1992 | ||
1993 | nla_put_failure: | |
1994 | genlmsg_cancel(dump_ctx->skb, dump_ctx->hdr); | |
1995 | nlmsg_free(dump_ctx->skb); | |
1996 | return -EMSGSIZE; | |
1997 | } | |
1998 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
1999 | ||
2000 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
2001 | struct devlink_dpipe_entry *entry) | |
2002 | { | |
2003 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
2004 | } | |
2005 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
2006 | ||
2007 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2008 | { | |
2009 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
2010 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
2011 | return 0; | |
2012 | } | |
2013 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
2014 | ||
35807324 AS |
2015 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
2016 | ||
2017 | { | |
2018 | unsigned int value_count, value_index; | |
2019 | struct devlink_dpipe_value *value; | |
2020 | ||
2021 | value = entry->action_values; | |
2022 | value_count = entry->action_values_count; | |
2023 | for (value_index = 0; value_index < value_count; value_index++) { | |
2024 | kfree(value[value_index].value); | |
2025 | kfree(value[value_index].mask); | |
2026 | } | |
2027 | ||
2028 | value = entry->match_values; | |
2029 | value_count = entry->match_values_count; | |
2030 | for (value_index = 0; value_index < value_count; value_index++) { | |
2031 | kfree(value[value_index].value); | |
2032 | kfree(value[value_index].mask); | |
2033 | } | |
2034 | } | |
2035 | EXPORT_SYMBOL(devlink_dpipe_entry_clear); | |
2036 | ||
1555d204 AS |
2037 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
2038 | enum devlink_command cmd, int flags, | |
2039 | struct devlink_dpipe_table *table) | |
2040 | { | |
2041 | struct devlink_dpipe_dump_ctx dump_ctx; | |
2042 | struct nlmsghdr *nlh; | |
2043 | int err; | |
2044 | ||
2045 | dump_ctx.skb = NULL; | |
2046 | dump_ctx.cmd = cmd; | |
2047 | dump_ctx.info = info; | |
2048 | ||
2049 | err = table->table_ops->entries_dump(table->priv, | |
2050 | table->counters_enabled, | |
2051 | &dump_ctx); | |
2052 | if (err) | |
865e97e4 | 2053 | return err; |
1555d204 AS |
2054 | |
2055 | send_done: | |
2056 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
2057 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2058 | if (!nlh) { | |
2059 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
2060 | if (err) | |
865e97e4 | 2061 | return err; |
1555d204 AS |
2062 | goto send_done; |
2063 | } | |
2064 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
2065 | } |
2066 | ||
2067 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
2068 | struct genl_info *info) | |
2069 | { | |
2070 | struct devlink *devlink = info->user_ptr[0]; | |
2071 | struct devlink_dpipe_table *table; | |
2072 | const char *table_name; | |
2073 | ||
2074 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
2075 | return -EINVAL; | |
2076 | ||
2077 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2078 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2079 | table_name); | |
2080 | if (!table) | |
2081 | return -EINVAL; | |
2082 | ||
2083 | if (!table->table_ops->entries_dump) | |
2084 | return -EINVAL; | |
2085 | ||
2086 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
2087 | 0, table); | |
2088 | } | |
2089 | ||
2090 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
2091 | const struct devlink_dpipe_header *header) | |
2092 | { | |
2093 | struct devlink_dpipe_field *field; | |
2094 | struct nlattr *field_attr; | |
2095 | int i; | |
2096 | ||
2097 | for (i = 0; i < header->fields_count; i++) { | |
2098 | field = &header->fields[i]; | |
2099 | field_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_FIELD); | |
2100 | if (!field_attr) | |
2101 | return -EMSGSIZE; | |
2102 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
2103 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
2104 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
2105 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
2106 | goto nla_put_failure; | |
2107 | nla_nest_end(skb, field_attr); | |
2108 | } | |
2109 | return 0; | |
2110 | ||
2111 | nla_put_failure: | |
2112 | nla_nest_cancel(skb, field_attr); | |
2113 | return -EMSGSIZE; | |
2114 | } | |
2115 | ||
2116 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
2117 | struct devlink_dpipe_header *header) | |
2118 | { | |
2119 | struct nlattr *fields_attr, *header_attr; | |
2120 | int err; | |
2121 | ||
2122 | header_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER); | |
cb6bf9cf | 2123 | if (!header_attr) |
1555d204 AS |
2124 | return -EMSGSIZE; |
2125 | ||
2126 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
2127 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
2128 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
2129 | goto nla_put_failure; | |
2130 | ||
2131 | fields_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
2132 | if (!fields_attr) | |
2133 | goto nla_put_failure; | |
2134 | ||
2135 | err = devlink_dpipe_fields_put(skb, header); | |
2136 | if (err) { | |
2137 | nla_nest_cancel(skb, fields_attr); | |
2138 | goto nla_put_failure; | |
2139 | } | |
2140 | nla_nest_end(skb, fields_attr); | |
2141 | nla_nest_end(skb, header_attr); | |
2142 | return 0; | |
2143 | ||
2144 | nla_put_failure: | |
2145 | err = -EMSGSIZE; | |
2146 | nla_nest_cancel(skb, header_attr); | |
2147 | return err; | |
2148 | } | |
2149 | ||
2150 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
2151 | enum devlink_command cmd, int flags, | |
2152 | struct devlink_dpipe_headers * | |
2153 | dpipe_headers) | |
2154 | { | |
2155 | struct devlink *devlink = info->user_ptr[0]; | |
2156 | struct nlattr *headers_attr; | |
2157 | struct sk_buff *skb = NULL; | |
2158 | struct nlmsghdr *nlh; | |
2159 | void *hdr; | |
2160 | int i, j; | |
2161 | int err; | |
2162 | ||
2163 | i = 0; | |
2164 | start_again: | |
2165 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2166 | if (err) | |
2167 | return err; | |
2168 | ||
2169 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2170 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
2171 | if (!hdr) { |
2172 | nlmsg_free(skb); | |
1555d204 | 2173 | return -EMSGSIZE; |
6044bd4a | 2174 | } |
1555d204 AS |
2175 | |
2176 | if (devlink_nl_put_handle(skb, devlink)) | |
2177 | goto nla_put_failure; | |
2178 | headers_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADERS); | |
2179 | if (!headers_attr) | |
2180 | goto nla_put_failure; | |
2181 | ||
2182 | j = 0; | |
2183 | for (; i < dpipe_headers->headers_count; i++) { | |
2184 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
2185 | if (err) { | |
2186 | if (!j) | |
2187 | goto err_table_put; | |
2188 | break; | |
2189 | } | |
2190 | j++; | |
2191 | } | |
2192 | nla_nest_end(skb, headers_attr); | |
2193 | genlmsg_end(skb, hdr); | |
2194 | if (i != dpipe_headers->headers_count) | |
2195 | goto start_again; | |
2196 | ||
2197 | send_done: | |
2198 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2199 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2200 | if (!nlh) { | |
2201 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2202 | if (err) | |
865e97e4 | 2203 | return err; |
1555d204 AS |
2204 | goto send_done; |
2205 | } | |
2206 | return genlmsg_reply(skb, info); | |
2207 | ||
2208 | nla_put_failure: | |
2209 | err = -EMSGSIZE; | |
2210 | err_table_put: | |
1555d204 AS |
2211 | genlmsg_cancel(skb, hdr); |
2212 | nlmsg_free(skb); | |
2213 | return err; | |
2214 | } | |
2215 | ||
2216 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
2217 | struct genl_info *info) | |
2218 | { | |
2219 | struct devlink *devlink = info->user_ptr[0]; | |
2220 | ||
2221 | if (!devlink->dpipe_headers) | |
2222 | return -EOPNOTSUPP; | |
2223 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
2224 | 0, devlink->dpipe_headers); | |
2225 | } | |
2226 | ||
2227 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
2228 | const char *table_name, | |
2229 | bool enable) | |
2230 | { | |
2231 | struct devlink_dpipe_table *table; | |
2232 | ||
2233 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2234 | table_name); | |
2235 | if (!table) | |
2236 | return -EINVAL; | |
2237 | ||
2238 | if (table->counter_control_extern) | |
2239 | return -EOPNOTSUPP; | |
2240 | ||
2241 | if (!(table->counters_enabled ^ enable)) | |
2242 | return 0; | |
2243 | ||
2244 | table->counters_enabled = enable; | |
2245 | if (table->table_ops->counters_set_update) | |
2246 | table->table_ops->counters_set_update(table->priv, enable); | |
2247 | return 0; | |
2248 | } | |
2249 | ||
2250 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
2251 | struct genl_info *info) | |
2252 | { | |
2253 | struct devlink *devlink = info->user_ptr[0]; | |
2254 | const char *table_name; | |
2255 | bool counters_enable; | |
2256 | ||
2257 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
2258 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
2259 | return -EINVAL; | |
2260 | ||
2261 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2262 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
2263 | ||
2264 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
2265 | counters_enable); | |
08f4b591 OG |
2266 | } |
2267 | ||
bfcd3a46 JP |
2268 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
2269 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, | |
2270 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
2271 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
2272 | [DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 }, | |
2273 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, | |
bf797471 JP |
2274 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
2275 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
2276 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
2277 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
2278 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
2279 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
2280 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
08f4b591 | 2281 | [DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 }, |
59bfde01 | 2282 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 2283 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
2284 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
2285 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
bfcd3a46 JP |
2286 | }; |
2287 | ||
2288 | static const struct genl_ops devlink_nl_ops[] = { | |
2289 | { | |
2290 | .cmd = DEVLINK_CMD_GET, | |
2291 | .doit = devlink_nl_cmd_get_doit, | |
2292 | .dumpit = devlink_nl_cmd_get_dumpit, | |
2293 | .policy = devlink_nl_policy, | |
1fc2257e | 2294 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
bfcd3a46 JP |
2295 | /* can be retrieved by unprivileged users */ |
2296 | }, | |
2297 | { | |
2298 | .cmd = DEVLINK_CMD_PORT_GET, | |
2299 | .doit = devlink_nl_cmd_port_get_doit, | |
2300 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
2301 | .policy = devlink_nl_policy, | |
2302 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
2303 | /* can be retrieved by unprivileged users */ | |
2304 | }, | |
2305 | { | |
2306 | .cmd = DEVLINK_CMD_PORT_SET, | |
2307 | .doit = devlink_nl_cmd_port_set_doit, | |
2308 | .policy = devlink_nl_policy, | |
2309 | .flags = GENL_ADMIN_PERM, | |
2310 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
2311 | }, | |
2312 | { | |
2313 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
2314 | .doit = devlink_nl_cmd_port_split_doit, | |
2315 | .policy = devlink_nl_policy, | |
2316 | .flags = GENL_ADMIN_PERM, | |
1fc2257e | 2317 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
bfcd3a46 JP |
2318 | }, |
2319 | { | |
2320 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
2321 | .doit = devlink_nl_cmd_port_unsplit_doit, | |
2322 | .policy = devlink_nl_policy, | |
2323 | .flags = GENL_ADMIN_PERM, | |
1fc2257e | 2324 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
bfcd3a46 | 2325 | }, |
bf797471 JP |
2326 | { |
2327 | .cmd = DEVLINK_CMD_SB_GET, | |
2328 | .doit = devlink_nl_cmd_sb_get_doit, | |
2329 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
2330 | .policy = devlink_nl_policy, | |
2331 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2332 | DEVLINK_NL_FLAG_NEED_SB, | |
2333 | /* can be retrieved by unprivileged users */ | |
2334 | }, | |
2335 | { | |
2336 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
2337 | .doit = devlink_nl_cmd_sb_pool_get_doit, | |
2338 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
2339 | .policy = devlink_nl_policy, | |
2340 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2341 | DEVLINK_NL_FLAG_NEED_SB, | |
2342 | /* can be retrieved by unprivileged users */ | |
2343 | }, | |
2344 | { | |
2345 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
2346 | .doit = devlink_nl_cmd_sb_pool_set_doit, | |
2347 | .policy = devlink_nl_policy, | |
2348 | .flags = GENL_ADMIN_PERM, | |
2349 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2350 | DEVLINK_NL_FLAG_NEED_SB, | |
2351 | }, | |
2352 | { | |
2353 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
2354 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, | |
2355 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
2356 | .policy = devlink_nl_policy, | |
2357 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
2358 | DEVLINK_NL_FLAG_NEED_SB, | |
2359 | /* can be retrieved by unprivileged users */ | |
2360 | }, | |
2361 | { | |
2362 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
2363 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, | |
2364 | .policy = devlink_nl_policy, | |
2365 | .flags = GENL_ADMIN_PERM, | |
2366 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
2367 | DEVLINK_NL_FLAG_NEED_SB, | |
2368 | }, | |
2369 | { | |
2370 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
2371 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, | |
2372 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
2373 | .policy = devlink_nl_policy, | |
2374 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
2375 | DEVLINK_NL_FLAG_NEED_SB, | |
2376 | /* can be retrieved by unprivileged users */ | |
2377 | }, | |
2378 | { | |
2379 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
2380 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, | |
2381 | .policy = devlink_nl_policy, | |
2382 | .flags = GENL_ADMIN_PERM, | |
2383 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
2384 | DEVLINK_NL_FLAG_NEED_SB, | |
2385 | }, | |
df38dafd JP |
2386 | { |
2387 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
2388 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, | |
2389 | .policy = devlink_nl_policy, | |
2390 | .flags = GENL_ADMIN_PERM, | |
2391 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2392 | DEVLINK_NL_FLAG_NEED_SB | | |
2393 | DEVLINK_NL_FLAG_LOCK_PORTS, | |
2394 | }, | |
2395 | { | |
2396 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
2397 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, | |
2398 | .policy = devlink_nl_policy, | |
2399 | .flags = GENL_ADMIN_PERM, | |
2400 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2401 | DEVLINK_NL_FLAG_NEED_SB | | |
2402 | DEVLINK_NL_FLAG_LOCK_PORTS, | |
2403 | }, | |
08f4b591 | 2404 | { |
adf200f3 JP |
2405 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
2406 | .doit = devlink_nl_cmd_eswitch_get_doit, | |
08f4b591 OG |
2407 | .policy = devlink_nl_policy, |
2408 | .flags = GENL_ADMIN_PERM, | |
2409 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2410 | }, | |
2411 | { | |
adf200f3 JP |
2412 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
2413 | .doit = devlink_nl_cmd_eswitch_set_doit, | |
08f4b591 OG |
2414 | .policy = devlink_nl_policy, |
2415 | .flags = GENL_ADMIN_PERM, | |
2416 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2417 | }, | |
1555d204 AS |
2418 | { |
2419 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
2420 | .doit = devlink_nl_cmd_dpipe_table_get, | |
2421 | .policy = devlink_nl_policy, | |
2422 | .flags = GENL_ADMIN_PERM, | |
2423 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2424 | }, | |
2425 | { | |
2426 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
2427 | .doit = devlink_nl_cmd_dpipe_entries_get, | |
2428 | .policy = devlink_nl_policy, | |
2429 | .flags = GENL_ADMIN_PERM, | |
2430 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2431 | }, | |
2432 | { | |
2433 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
2434 | .doit = devlink_nl_cmd_dpipe_headers_get, | |
2435 | .policy = devlink_nl_policy, | |
2436 | .flags = GENL_ADMIN_PERM, | |
2437 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2438 | }, | |
2439 | { | |
2440 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
2441 | .doit = devlink_nl_cmd_dpipe_table_counters_set, | |
2442 | .policy = devlink_nl_policy, | |
2443 | .flags = GENL_ADMIN_PERM, | |
2444 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2445 | }, | |
bfcd3a46 JP |
2446 | }; |
2447 | ||
56989f6d | 2448 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
2449 | .name = DEVLINK_GENL_NAME, |
2450 | .version = DEVLINK_GENL_VERSION, | |
2451 | .maxattr = DEVLINK_ATTR_MAX, | |
2452 | .netnsok = true, | |
2453 | .pre_doit = devlink_nl_pre_doit, | |
2454 | .post_doit = devlink_nl_post_doit, | |
2455 | .module = THIS_MODULE, | |
2456 | .ops = devlink_nl_ops, | |
2457 | .n_ops = ARRAY_SIZE(devlink_nl_ops), | |
2458 | .mcgrps = devlink_nl_mcgrps, | |
2459 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
2460 | }; | |
2461 | ||
bfcd3a46 JP |
2462 | /** |
2463 | * devlink_alloc - Allocate new devlink instance resources | |
2464 | * | |
2465 | * @ops: ops | |
2466 | * @priv_size: size of user private data | |
2467 | * | |
2468 | * Allocate new devlink instance resources, including devlink index | |
2469 | * and name. | |
2470 | */ | |
2471 | struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size) | |
2472 | { | |
2473 | struct devlink *devlink; | |
2474 | ||
2475 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); | |
2476 | if (!devlink) | |
2477 | return NULL; | |
2478 | devlink->ops = ops; | |
2479 | devlink_net_set(devlink, &init_net); | |
2480 | INIT_LIST_HEAD(&devlink->port_list); | |
bf797471 | 2481 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 2482 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
bfcd3a46 JP |
2483 | return devlink; |
2484 | } | |
2485 | EXPORT_SYMBOL_GPL(devlink_alloc); | |
2486 | ||
2487 | /** | |
2488 | * devlink_register - Register devlink instance | |
2489 | * | |
2490 | * @devlink: devlink | |
2491 | */ | |
2492 | int devlink_register(struct devlink *devlink, struct device *dev) | |
2493 | { | |
2494 | mutex_lock(&devlink_mutex); | |
2495 | devlink->dev = dev; | |
2496 | list_add_tail(&devlink->list, &devlink_list); | |
2497 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
2498 | mutex_unlock(&devlink_mutex); | |
2499 | return 0; | |
2500 | } | |
2501 | EXPORT_SYMBOL_GPL(devlink_register); | |
2502 | ||
2503 | /** | |
2504 | * devlink_unregister - Unregister devlink instance | |
2505 | * | |
2506 | * @devlink: devlink | |
2507 | */ | |
2508 | void devlink_unregister(struct devlink *devlink) | |
2509 | { | |
2510 | mutex_lock(&devlink_mutex); | |
2511 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
2512 | list_del(&devlink->list); | |
2513 | mutex_unlock(&devlink_mutex); | |
2514 | } | |
2515 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
2516 | ||
2517 | /** | |
2518 | * devlink_free - Free devlink instance resources | |
2519 | * | |
2520 | * @devlink: devlink | |
2521 | */ | |
2522 | void devlink_free(struct devlink *devlink) | |
2523 | { | |
2524 | kfree(devlink); | |
2525 | } | |
2526 | EXPORT_SYMBOL_GPL(devlink_free); | |
2527 | ||
2528 | /** | |
2529 | * devlink_port_register - Register devlink port | |
2530 | * | |
2531 | * @devlink: devlink | |
2532 | * @devlink_port: devlink port | |
2533 | * @port_index | |
2534 | * | |
2535 | * Register devlink port with provided port index. User can use | |
2536 | * any indexing, even hw-related one. devlink_port structure | |
2537 | * is convenient to be embedded inside user driver private structure. | |
2538 | * Note that the caller should take care of zeroing the devlink_port | |
2539 | * structure. | |
2540 | */ | |
2541 | int devlink_port_register(struct devlink *devlink, | |
2542 | struct devlink_port *devlink_port, | |
2543 | unsigned int port_index) | |
2544 | { | |
2545 | mutex_lock(&devlink_port_mutex); | |
2546 | if (devlink_port_index_exists(devlink, port_index)) { | |
2547 | mutex_unlock(&devlink_port_mutex); | |
2548 | return -EEXIST; | |
2549 | } | |
2550 | devlink_port->devlink = devlink; | |
2551 | devlink_port->index = port_index; | |
bfcd3a46 JP |
2552 | devlink_port->registered = true; |
2553 | list_add_tail(&devlink_port->list, &devlink->port_list); | |
2554 | mutex_unlock(&devlink_port_mutex); | |
2555 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
2556 | return 0; | |
2557 | } | |
2558 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
2559 | ||
2560 | /** | |
2561 | * devlink_port_unregister - Unregister devlink port | |
2562 | * | |
2563 | * @devlink_port: devlink port | |
2564 | */ | |
2565 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
2566 | { | |
2567 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
2568 | mutex_lock(&devlink_port_mutex); | |
2569 | list_del(&devlink_port->list); | |
2570 | mutex_unlock(&devlink_port_mutex); | |
2571 | } | |
2572 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
2573 | ||
2574 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
2575 | enum devlink_port_type type, | |
2576 | void *type_dev) | |
2577 | { | |
2578 | devlink_port->type = type; | |
2579 | devlink_port->type_dev = type_dev; | |
2580 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
2581 | } | |
2582 | ||
2583 | /** | |
2584 | * devlink_port_type_eth_set - Set port type to Ethernet | |
2585 | * | |
2586 | * @devlink_port: devlink port | |
2587 | * @netdev: related netdevice | |
2588 | */ | |
2589 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
2590 | struct net_device *netdev) | |
2591 | { | |
2592 | return __devlink_port_type_set(devlink_port, | |
2593 | DEVLINK_PORT_TYPE_ETH, netdev); | |
2594 | } | |
2595 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
2596 | ||
2597 | /** | |
2598 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
2599 | * | |
2600 | * @devlink_port: devlink port | |
2601 | * @ibdev: related IB device | |
2602 | */ | |
2603 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
2604 | struct ib_device *ibdev) | |
2605 | { | |
2606 | return __devlink_port_type_set(devlink_port, | |
2607 | DEVLINK_PORT_TYPE_IB, ibdev); | |
2608 | } | |
2609 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
2610 | ||
2611 | /** | |
2612 | * devlink_port_type_clear - Clear port type | |
2613 | * | |
2614 | * @devlink_port: devlink port | |
2615 | */ | |
2616 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
2617 | { | |
2618 | return __devlink_port_type_set(devlink_port, | |
2619 | DEVLINK_PORT_TYPE_NOTSET, NULL); | |
2620 | } | |
2621 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
2622 | ||
2623 | /** | |
2624 | * devlink_port_split_set - Set port is split | |
2625 | * | |
2626 | * @devlink_port: devlink port | |
2627 | * @split_group: split group - identifies group split port is part of | |
2628 | */ | |
2629 | void devlink_port_split_set(struct devlink_port *devlink_port, | |
2630 | u32 split_group) | |
2631 | { | |
2632 | devlink_port->split = true; | |
2633 | devlink_port->split_group = split_group; | |
2634 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
2635 | } | |
2636 | EXPORT_SYMBOL_GPL(devlink_port_split_set); | |
2637 | ||
bf797471 JP |
2638 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, |
2639 | u32 size, u16 ingress_pools_count, | |
2640 | u16 egress_pools_count, u16 ingress_tc_count, | |
2641 | u16 egress_tc_count) | |
2642 | { | |
2643 | struct devlink_sb *devlink_sb; | |
2644 | int err = 0; | |
2645 | ||
2646 | mutex_lock(&devlink_mutex); | |
2647 | if (devlink_sb_index_exists(devlink, sb_index)) { | |
2648 | err = -EEXIST; | |
2649 | goto unlock; | |
2650 | } | |
2651 | ||
2652 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
2653 | if (!devlink_sb) { | |
2654 | err = -ENOMEM; | |
2655 | goto unlock; | |
2656 | } | |
2657 | devlink_sb->index = sb_index; | |
2658 | devlink_sb->size = size; | |
2659 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
2660 | devlink_sb->egress_pools_count = egress_pools_count; | |
2661 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
2662 | devlink_sb->egress_tc_count = egress_tc_count; | |
2663 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
2664 | unlock: | |
2665 | mutex_unlock(&devlink_mutex); | |
2666 | return err; | |
2667 | } | |
2668 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
2669 | ||
2670 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
2671 | { | |
2672 | struct devlink_sb *devlink_sb; | |
2673 | ||
2674 | mutex_lock(&devlink_mutex); | |
2675 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
2676 | WARN_ON(!devlink_sb); | |
2677 | list_del(&devlink_sb->list); | |
2678 | mutex_unlock(&devlink_mutex); | |
2679 | kfree(devlink_sb); | |
2680 | } | |
2681 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); | |
2682 | ||
1555d204 AS |
2683 | /** |
2684 | * devlink_dpipe_headers_register - register dpipe headers | |
2685 | * | |
2686 | * @devlink: devlink | |
2687 | * @dpipe_headers: dpipe header array | |
2688 | * | |
2689 | * Register the headers supported by hardware. | |
2690 | */ | |
2691 | int devlink_dpipe_headers_register(struct devlink *devlink, | |
2692 | struct devlink_dpipe_headers *dpipe_headers) | |
2693 | { | |
2694 | mutex_lock(&devlink_mutex); | |
2695 | devlink->dpipe_headers = dpipe_headers; | |
2696 | mutex_unlock(&devlink_mutex); | |
2697 | return 0; | |
2698 | } | |
2699 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register); | |
2700 | ||
2701 | /** | |
2702 | * devlink_dpipe_headers_unregister - unregister dpipe headers | |
2703 | * | |
2704 | * @devlink: devlink | |
2705 | * | |
2706 | * Unregister the headers supported by hardware. | |
2707 | */ | |
2708 | void devlink_dpipe_headers_unregister(struct devlink *devlink) | |
2709 | { | |
2710 | mutex_lock(&devlink_mutex); | |
2711 | devlink->dpipe_headers = NULL; | |
2712 | mutex_unlock(&devlink_mutex); | |
2713 | } | |
2714 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister); | |
2715 | ||
2716 | /** | |
2717 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
2718 | * required | |
2719 | * @devlink: devlink | |
2720 | * @table_name: tables name | |
2721 | * | |
2722 | * Used by driver to check if counter allocation is required. | |
2723 | * After counter allocation is turned on the table entries | |
2724 | * are updated to include counter statistics. | |
2725 | * | |
2726 | * After that point on the driver must respect the counter | |
2727 | * state so that each entry added to the table is added | |
2728 | * with a counter. | |
2729 | */ | |
2730 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
2731 | const char *table_name) | |
2732 | { | |
2733 | struct devlink_dpipe_table *table; | |
2734 | bool enabled; | |
2735 | ||
2736 | rcu_read_lock(); | |
2737 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2738 | table_name); | |
2739 | enabled = false; | |
2740 | if (table) | |
2741 | enabled = table->counters_enabled; | |
2742 | rcu_read_unlock(); | |
2743 | return enabled; | |
2744 | } | |
2745 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
2746 | ||
2747 | /** | |
2748 | * devlink_dpipe_table_register - register dpipe table | |
2749 | * | |
2750 | * @devlink: devlink | |
2751 | * @table_name: table name | |
2752 | * @table_ops: table ops | |
2753 | * @priv: priv | |
1555d204 AS |
2754 | * @counter_control_extern: external control for counters |
2755 | */ | |
2756 | int devlink_dpipe_table_register(struct devlink *devlink, | |
2757 | const char *table_name, | |
2758 | struct devlink_dpipe_table_ops *table_ops, | |
ffd3cdcc | 2759 | void *priv, bool counter_control_extern) |
1555d204 AS |
2760 | { |
2761 | struct devlink_dpipe_table *table; | |
2762 | ||
2763 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name)) | |
2764 | return -EEXIST; | |
2765 | ||
ffd3cdcc AS |
2766 | if (WARN_ON(!table_ops->size_get)) |
2767 | return -EINVAL; | |
2768 | ||
1555d204 AS |
2769 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
2770 | if (!table) | |
2771 | return -ENOMEM; | |
2772 | ||
2773 | table->name = table_name; | |
2774 | table->table_ops = table_ops; | |
2775 | table->priv = priv; | |
1555d204 AS |
2776 | table->counter_control_extern = counter_control_extern; |
2777 | ||
2778 | mutex_lock(&devlink_mutex); | |
2779 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); | |
2780 | mutex_unlock(&devlink_mutex); | |
2781 | return 0; | |
2782 | } | |
2783 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_register); | |
2784 | ||
2785 | /** | |
2786 | * devlink_dpipe_table_unregister - unregister dpipe table | |
2787 | * | |
2788 | * @devlink: devlink | |
2789 | * @table_name: table name | |
2790 | */ | |
2791 | void devlink_dpipe_table_unregister(struct devlink *devlink, | |
2792 | const char *table_name) | |
2793 | { | |
2794 | struct devlink_dpipe_table *table; | |
2795 | ||
2796 | mutex_lock(&devlink_mutex); | |
2797 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2798 | table_name); | |
2799 | if (!table) | |
2800 | goto unlock; | |
2801 | list_del_rcu(&table->list); | |
2802 | mutex_unlock(&devlink_mutex); | |
2803 | kfree_rcu(table, rcu); | |
2804 | return; | |
2805 | unlock: | |
2806 | mutex_unlock(&devlink_mutex); | |
2807 | } | |
2808 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister); | |
2809 | ||
bfcd3a46 JP |
2810 | static int __init devlink_module_init(void) |
2811 | { | |
489111e5 | 2812 | return genl_register_family(&devlink_nl_family); |
bfcd3a46 JP |
2813 | } |
2814 | ||
2815 | static void __exit devlink_module_exit(void) | |
2816 | { | |
2817 | genl_unregister_family(&devlink_nl_family); | |
2818 | } | |
2819 | ||
2820 | module_init(devlink_module_init); | |
2821 | module_exit(devlink_module_exit); | |
2822 | ||
2823 | MODULE_LICENSE("GPL v2"); | |
2824 | MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>"); | |
2825 | MODULE_DESCRIPTION("Network physical device Netlink interface"); | |
2826 | MODULE_ALIAS_GENL_FAMILY(DEVLINK_GENL_NAME); |