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 | ||
bfcd3a46 JP |
95 | static struct net *devlink_net(const struct devlink *devlink) |
96 | { | |
97 | return read_pnet(&devlink->_net); | |
98 | } | |
99 | ||
100 | static void devlink_net_set(struct devlink *devlink, struct net *net) | |
101 | { | |
102 | write_pnet(&devlink->_net, net); | |
103 | } | |
104 | ||
105 | static struct devlink *devlink_get_from_attrs(struct net *net, | |
106 | struct nlattr **attrs) | |
107 | { | |
108 | struct devlink *devlink; | |
109 | char *busname; | |
110 | char *devname; | |
111 | ||
112 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
113 | return ERR_PTR(-EINVAL); | |
114 | ||
115 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
116 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
117 | ||
118 | list_for_each_entry(devlink, &devlink_list, list) { | |
119 | if (strcmp(devlink->dev->bus->name, busname) == 0 && | |
120 | strcmp(dev_name(devlink->dev), devname) == 0 && | |
121 | net_eq(devlink_net(devlink), net)) | |
122 | return devlink; | |
123 | } | |
124 | ||
125 | return ERR_PTR(-ENODEV); | |
126 | } | |
127 | ||
128 | static struct devlink *devlink_get_from_info(struct genl_info *info) | |
129 | { | |
130 | return devlink_get_from_attrs(genl_info_net(info), info->attrs); | |
131 | } | |
132 | ||
133 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
134 | int port_index) | |
135 | { | |
136 | struct devlink_port *devlink_port; | |
137 | ||
138 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
139 | if (devlink_port->index == port_index) | |
140 | return devlink_port; | |
141 | } | |
142 | return NULL; | |
143 | } | |
144 | ||
145 | static bool devlink_port_index_exists(struct devlink *devlink, int port_index) | |
146 | { | |
147 | return devlink_port_get_by_index(devlink, port_index); | |
148 | } | |
149 | ||
150 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
151 | struct nlattr **attrs) | |
152 | { | |
153 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
154 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
155 | struct devlink_port *devlink_port; | |
156 | ||
157 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
158 | if (!devlink_port) | |
159 | return ERR_PTR(-ENODEV); | |
160 | return devlink_port; | |
161 | } | |
162 | return ERR_PTR(-EINVAL); | |
163 | } | |
164 | ||
165 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
166 | struct genl_info *info) | |
167 | { | |
168 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
169 | } | |
170 | ||
bf797471 JP |
171 | struct devlink_sb { |
172 | struct list_head list; | |
173 | unsigned int index; | |
174 | u32 size; | |
175 | u16 ingress_pools_count; | |
176 | u16 egress_pools_count; | |
177 | u16 ingress_tc_count; | |
178 | u16 egress_tc_count; | |
179 | }; | |
180 | ||
181 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
182 | { | |
183 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
184 | } | |
185 | ||
186 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
187 | unsigned int sb_index) | |
188 | { | |
189 | struct devlink_sb *devlink_sb; | |
190 | ||
191 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
192 | if (devlink_sb->index == sb_index) | |
193 | return devlink_sb; | |
194 | } | |
195 | return NULL; | |
196 | } | |
197 | ||
198 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
199 | unsigned int sb_index) | |
200 | { | |
201 | return devlink_sb_get_by_index(devlink, sb_index); | |
202 | } | |
203 | ||
204 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
205 | struct nlattr **attrs) | |
206 | { | |
207 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
208 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
209 | struct devlink_sb *devlink_sb; | |
210 | ||
211 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
212 | if (!devlink_sb) | |
213 | return ERR_PTR(-ENODEV); | |
214 | return devlink_sb; | |
215 | } | |
216 | return ERR_PTR(-EINVAL); | |
217 | } | |
218 | ||
219 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
220 | struct genl_info *info) | |
221 | { | |
222 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
223 | } | |
224 | ||
225 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
226 | struct nlattr **attrs, | |
227 | u16 *p_pool_index) | |
228 | { | |
229 | u16 val; | |
230 | ||
231 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
232 | return -EINVAL; | |
233 | ||
234 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
235 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
236 | return -EINVAL; | |
237 | *p_pool_index = val; | |
238 | return 0; | |
239 | } | |
240 | ||
241 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
242 | struct genl_info *info, | |
243 | u16 *p_pool_index) | |
244 | { | |
245 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
246 | p_pool_index); | |
247 | } | |
248 | ||
249 | static int | |
250 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
251 | enum devlink_sb_pool_type *p_pool_type) | |
252 | { | |
253 | u8 val; | |
254 | ||
255 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
256 | return -EINVAL; | |
257 | ||
258 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
259 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
260 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
261 | return -EINVAL; | |
262 | *p_pool_type = val; | |
263 | return 0; | |
264 | } | |
265 | ||
266 | static int | |
267 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
268 | enum devlink_sb_pool_type *p_pool_type) | |
269 | { | |
270 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
271 | } | |
272 | ||
273 | static int | |
274 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
275 | enum devlink_sb_threshold_type *p_th_type) | |
276 | { | |
277 | u8 val; | |
278 | ||
279 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
280 | return -EINVAL; | |
281 | ||
282 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
283 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
284 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
285 | return -EINVAL; | |
286 | *p_th_type = val; | |
287 | return 0; | |
288 | } | |
289 | ||
290 | static int | |
291 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
292 | enum devlink_sb_threshold_type *p_th_type) | |
293 | { | |
294 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
295 | } | |
296 | ||
297 | static int | |
298 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
299 | struct nlattr **attrs, | |
300 | enum devlink_sb_pool_type pool_type, | |
301 | u16 *p_tc_index) | |
302 | { | |
303 | u16 val; | |
304 | ||
305 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
306 | return -EINVAL; | |
307 | ||
308 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
309 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
310 | val >= devlink_sb->ingress_tc_count) | |
311 | return -EINVAL; | |
312 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
313 | val >= devlink_sb->egress_tc_count) | |
314 | return -EINVAL; | |
315 | *p_tc_index = val; | |
316 | return 0; | |
317 | } | |
318 | ||
319 | static int | |
320 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
321 | struct genl_info *info, | |
322 | enum devlink_sb_pool_type pool_type, | |
323 | u16 *p_tc_index) | |
324 | { | |
325 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
326 | pool_type, p_tc_index); | |
327 | } | |
328 | ||
1fc2257e JP |
329 | #define DEVLINK_NL_FLAG_NEED_DEVLINK BIT(0) |
330 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(1) | |
bf797471 | 331 | #define DEVLINK_NL_FLAG_NEED_SB BIT(2) |
2406e7e5 AS |
332 | |
333 | /* The per devlink instance lock is taken by default in the pre-doit | |
334 | * operation, yet several commands do not require this. The global | |
335 | * devlink lock is taken and protects from disruption by user-calls. | |
336 | */ | |
337 | #define DEVLINK_NL_FLAG_NO_LOCK BIT(3) | |
bfcd3a46 JP |
338 | |
339 | static int devlink_nl_pre_doit(const struct genl_ops *ops, | |
340 | struct sk_buff *skb, struct genl_info *info) | |
341 | { | |
342 | struct devlink *devlink; | |
2406e7e5 | 343 | int err; |
bfcd3a46 JP |
344 | |
345 | mutex_lock(&devlink_mutex); | |
346 | devlink = devlink_get_from_info(info); | |
347 | if (IS_ERR(devlink)) { | |
348 | mutex_unlock(&devlink_mutex); | |
349 | return PTR_ERR(devlink); | |
350 | } | |
2406e7e5 AS |
351 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
352 | mutex_lock(&devlink->lock); | |
1fc2257e JP |
353 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) { |
354 | info->user_ptr[0] = devlink; | |
355 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
356 | struct devlink_port *devlink_port; |
357 | ||
bfcd3a46 JP |
358 | devlink_port = devlink_port_get_from_info(devlink, info); |
359 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
360 | err = PTR_ERR(devlink_port); |
361 | goto unlock; | |
bfcd3a46 | 362 | } |
1fc2257e | 363 | info->user_ptr[0] = devlink_port; |
bfcd3a46 | 364 | } |
bf797471 JP |
365 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_SB) { |
366 | struct devlink_sb *devlink_sb; | |
367 | ||
368 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
369 | if (IS_ERR(devlink_sb)) { | |
2406e7e5 AS |
370 | err = PTR_ERR(devlink_sb); |
371 | goto unlock; | |
bf797471 JP |
372 | } |
373 | info->user_ptr[1] = devlink_sb; | |
374 | } | |
bfcd3a46 | 375 | return 0; |
2406e7e5 AS |
376 | |
377 | unlock: | |
378 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
379 | mutex_unlock(&devlink->lock); | |
380 | mutex_unlock(&devlink_mutex); | |
381 | return err; | |
bfcd3a46 JP |
382 | } |
383 | ||
384 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
385 | struct sk_buff *skb, struct genl_info *info) | |
386 | { | |
2406e7e5 AS |
387 | struct devlink *devlink; |
388 | ||
389 | devlink = devlink_get_from_info(info); | |
390 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
391 | mutex_unlock(&devlink->lock); | |
bfcd3a46 JP |
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 | ||
b9ffcbaf JP |
456 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
457 | struct devlink_port *devlink_port) | |
458 | { | |
459 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
460 | ||
461 | if (!attrs->set) | |
462 | return 0; | |
5ec1380a JP |
463 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
464 | return -EMSGSIZE; | |
b9ffcbaf JP |
465 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, attrs->port_number)) |
466 | return -EMSGSIZE; | |
467 | if (!attrs->split) | |
468 | return 0; | |
469 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, attrs->port_number)) | |
470 | return -EMSGSIZE; | |
471 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
472 | attrs->split_subport_number)) | |
473 | return -EMSGSIZE; | |
474 | return 0; | |
475 | } | |
476 | ||
bfcd3a46 JP |
477 | static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink, |
478 | struct devlink_port *devlink_port, | |
479 | enum devlink_command cmd, u32 portid, | |
480 | u32 seq, int flags) | |
481 | { | |
482 | void *hdr; | |
483 | ||
484 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
485 | if (!hdr) | |
486 | return -EMSGSIZE; | |
487 | ||
488 | if (devlink_nl_put_handle(msg, devlink)) | |
489 | goto nla_put_failure; | |
490 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
491 | goto nla_put_failure; | |
492 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) | |
493 | goto nla_put_failure; | |
494 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && | |
495 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
496 | devlink_port->desired_type)) | |
497 | goto nla_put_failure; | |
498 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { | |
499 | struct net_device *netdev = devlink_port->type_dev; | |
500 | ||
501 | if (netdev && | |
502 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, | |
503 | netdev->ifindex) || | |
504 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
505 | netdev->name))) | |
506 | goto nla_put_failure; | |
507 | } | |
508 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
509 | struct ib_device *ibdev = devlink_port->type_dev; | |
510 | ||
511 | if (ibdev && | |
512 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
513 | ibdev->name)) | |
514 | goto nla_put_failure; | |
515 | } | |
b9ffcbaf | 516 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 JP |
517 | goto nla_put_failure; |
518 | ||
519 | genlmsg_end(msg, hdr); | |
520 | return 0; | |
521 | ||
522 | nla_put_failure: | |
523 | genlmsg_cancel(msg, hdr); | |
524 | return -EMSGSIZE; | |
525 | } | |
526 | ||
527 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
528 | enum devlink_command cmd) | |
529 | { | |
530 | struct devlink *devlink = devlink_port->devlink; | |
531 | struct sk_buff *msg; | |
532 | int err; | |
533 | ||
534 | if (!devlink_port->registered) | |
535 | return; | |
536 | ||
537 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); | |
538 | ||
539 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
540 | if (!msg) | |
541 | return; | |
542 | ||
543 | err = devlink_nl_port_fill(msg, devlink, devlink_port, cmd, 0, 0, 0); | |
544 | if (err) { | |
545 | nlmsg_free(msg); | |
546 | return; | |
547 | } | |
548 | ||
549 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
550 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
551 | } | |
552 | ||
553 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) | |
554 | { | |
555 | struct devlink *devlink = info->user_ptr[0]; | |
556 | struct sk_buff *msg; | |
557 | int err; | |
558 | ||
559 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
560 | if (!msg) | |
561 | return -ENOMEM; | |
562 | ||
563 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
564 | info->snd_portid, info->snd_seq, 0); | |
565 | if (err) { | |
566 | nlmsg_free(msg); | |
567 | return err; | |
568 | } | |
569 | ||
570 | return genlmsg_reply(msg, info); | |
571 | } | |
572 | ||
573 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
574 | struct netlink_callback *cb) | |
575 | { | |
576 | struct devlink *devlink; | |
577 | int start = cb->args[0]; | |
578 | int idx = 0; | |
579 | int err; | |
580 | ||
581 | mutex_lock(&devlink_mutex); | |
582 | list_for_each_entry(devlink, &devlink_list, list) { | |
583 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
584 | continue; | |
585 | if (idx < start) { | |
586 | idx++; | |
587 | continue; | |
588 | } | |
589 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
590 | NETLINK_CB(cb->skb).portid, | |
591 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
592 | if (err) | |
593 | goto out; | |
594 | idx++; | |
595 | } | |
596 | out: | |
597 | mutex_unlock(&devlink_mutex); | |
598 | ||
599 | cb->args[0] = idx; | |
600 | return msg->len; | |
601 | } | |
602 | ||
603 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
604 | struct genl_info *info) | |
605 | { | |
1fc2257e JP |
606 | struct devlink_port *devlink_port = info->user_ptr[0]; |
607 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
608 | struct sk_buff *msg; |
609 | int err; | |
610 | ||
611 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
612 | if (!msg) | |
613 | return -ENOMEM; | |
614 | ||
615 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
616 | DEVLINK_CMD_PORT_NEW, | |
617 | info->snd_portid, info->snd_seq, 0); | |
618 | if (err) { | |
619 | nlmsg_free(msg); | |
620 | return err; | |
621 | } | |
622 | ||
623 | return genlmsg_reply(msg, info); | |
624 | } | |
625 | ||
626 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
627 | struct netlink_callback *cb) | |
628 | { | |
629 | struct devlink *devlink; | |
630 | struct devlink_port *devlink_port; | |
631 | int start = cb->args[0]; | |
632 | int idx = 0; | |
633 | int err; | |
634 | ||
635 | mutex_lock(&devlink_mutex); | |
bfcd3a46 JP |
636 | list_for_each_entry(devlink, &devlink_list, list) { |
637 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
638 | continue; | |
2406e7e5 | 639 | mutex_lock(&devlink->lock); |
bfcd3a46 JP |
640 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
641 | if (idx < start) { | |
642 | idx++; | |
643 | continue; | |
644 | } | |
645 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
646 | DEVLINK_CMD_NEW, | |
647 | NETLINK_CB(cb->skb).portid, | |
648 | cb->nlh->nlmsg_seq, | |
649 | NLM_F_MULTI); | |
2406e7e5 AS |
650 | if (err) { |
651 | mutex_unlock(&devlink->lock); | |
bfcd3a46 | 652 | goto out; |
2406e7e5 | 653 | } |
bfcd3a46 JP |
654 | idx++; |
655 | } | |
2406e7e5 | 656 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
657 | } |
658 | out: | |
bfcd3a46 JP |
659 | mutex_unlock(&devlink_mutex); |
660 | ||
661 | cb->args[0] = idx; | |
662 | return msg->len; | |
663 | } | |
664 | ||
665 | static int devlink_port_type_set(struct devlink *devlink, | |
666 | struct devlink_port *devlink_port, | |
667 | enum devlink_port_type port_type) | |
668 | ||
669 | { | |
670 | int err; | |
671 | ||
672 | if (devlink->ops && devlink->ops->port_type_set) { | |
673 | if (port_type == DEVLINK_PORT_TYPE_NOTSET) | |
674 | return -EINVAL; | |
6edf1017 ER |
675 | if (port_type == devlink_port->type) |
676 | return 0; | |
bfcd3a46 JP |
677 | err = devlink->ops->port_type_set(devlink_port, port_type); |
678 | if (err) | |
679 | return err; | |
680 | devlink_port->desired_type = port_type; | |
681 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
682 | return 0; | |
683 | } | |
684 | return -EOPNOTSUPP; | |
685 | } | |
686 | ||
687 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, | |
688 | struct genl_info *info) | |
689 | { | |
1fc2257e JP |
690 | struct devlink_port *devlink_port = info->user_ptr[0]; |
691 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
692 | int err; |
693 | ||
694 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
695 | enum devlink_port_type port_type; | |
696 | ||
697 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
698 | err = devlink_port_type_set(devlink, devlink_port, port_type); | |
699 | if (err) | |
700 | return err; | |
701 | } | |
702 | return 0; | |
703 | } | |
704 | ||
ac0fc8a1 DA |
705 | static int devlink_port_split(struct devlink *devlink, u32 port_index, |
706 | u32 count, struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
707 | |
708 | { | |
709 | if (devlink->ops && devlink->ops->port_split) | |
ac0fc8a1 DA |
710 | return devlink->ops->port_split(devlink, port_index, count, |
711 | extack); | |
bfcd3a46 JP |
712 | return -EOPNOTSUPP; |
713 | } | |
714 | ||
715 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, | |
716 | struct genl_info *info) | |
717 | { | |
718 | struct devlink *devlink = info->user_ptr[0]; | |
719 | u32 port_index; | |
720 | u32 count; | |
721 | ||
722 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX] || | |
723 | !info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) | |
724 | return -EINVAL; | |
725 | ||
726 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
727 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); | |
ac0fc8a1 | 728 | return devlink_port_split(devlink, port_index, count, info->extack); |
bfcd3a46 JP |
729 | } |
730 | ||
ac0fc8a1 DA |
731 | static int devlink_port_unsplit(struct devlink *devlink, u32 port_index, |
732 | struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
733 | |
734 | { | |
735 | if (devlink->ops && devlink->ops->port_unsplit) | |
ac0fc8a1 | 736 | return devlink->ops->port_unsplit(devlink, port_index, extack); |
bfcd3a46 JP |
737 | return -EOPNOTSUPP; |
738 | } | |
739 | ||
740 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
741 | struct genl_info *info) | |
742 | { | |
743 | struct devlink *devlink = info->user_ptr[0]; | |
744 | u32 port_index; | |
745 | ||
746 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) | |
747 | return -EINVAL; | |
748 | ||
749 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
ac0fc8a1 | 750 | return devlink_port_unsplit(devlink, port_index, info->extack); |
bfcd3a46 JP |
751 | } |
752 | ||
bf797471 JP |
753 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
754 | struct devlink_sb *devlink_sb, | |
755 | enum devlink_command cmd, u32 portid, | |
756 | u32 seq, int flags) | |
757 | { | |
758 | void *hdr; | |
759 | ||
760 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
761 | if (!hdr) | |
762 | return -EMSGSIZE; | |
763 | ||
764 | if (devlink_nl_put_handle(msg, devlink)) | |
765 | goto nla_put_failure; | |
766 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
767 | goto nla_put_failure; | |
768 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
769 | goto nla_put_failure; | |
770 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
771 | devlink_sb->ingress_pools_count)) | |
772 | goto nla_put_failure; | |
773 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
774 | devlink_sb->egress_pools_count)) | |
775 | goto nla_put_failure; | |
776 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
777 | devlink_sb->ingress_tc_count)) | |
778 | goto nla_put_failure; | |
779 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
780 | devlink_sb->egress_tc_count)) | |
781 | goto nla_put_failure; | |
782 | ||
783 | genlmsg_end(msg, hdr); | |
784 | return 0; | |
785 | ||
786 | nla_put_failure: | |
787 | genlmsg_cancel(msg, hdr); | |
788 | return -EMSGSIZE; | |
789 | } | |
790 | ||
791 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
792 | struct genl_info *info) | |
793 | { | |
794 | struct devlink *devlink = info->user_ptr[0]; | |
795 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
796 | struct sk_buff *msg; | |
797 | int err; | |
798 | ||
799 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
800 | if (!msg) | |
801 | return -ENOMEM; | |
802 | ||
803 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
804 | DEVLINK_CMD_SB_NEW, | |
805 | info->snd_portid, info->snd_seq, 0); | |
806 | if (err) { | |
807 | nlmsg_free(msg); | |
808 | return err; | |
809 | } | |
810 | ||
811 | return genlmsg_reply(msg, info); | |
812 | } | |
813 | ||
814 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
815 | struct netlink_callback *cb) | |
816 | { | |
817 | struct devlink *devlink; | |
818 | struct devlink_sb *devlink_sb; | |
819 | int start = cb->args[0]; | |
820 | int idx = 0; | |
821 | int err; | |
822 | ||
823 | mutex_lock(&devlink_mutex); | |
824 | list_for_each_entry(devlink, &devlink_list, list) { | |
825 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
826 | continue; | |
2406e7e5 | 827 | mutex_lock(&devlink->lock); |
bf797471 JP |
828 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
829 | if (idx < start) { | |
830 | idx++; | |
831 | continue; | |
832 | } | |
833 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
834 | DEVLINK_CMD_SB_NEW, | |
835 | NETLINK_CB(cb->skb).portid, | |
836 | cb->nlh->nlmsg_seq, | |
837 | NLM_F_MULTI); | |
2406e7e5 AS |
838 | if (err) { |
839 | mutex_unlock(&devlink->lock); | |
bf797471 | 840 | goto out; |
2406e7e5 | 841 | } |
bf797471 JP |
842 | idx++; |
843 | } | |
2406e7e5 | 844 | mutex_unlock(&devlink->lock); |
bf797471 JP |
845 | } |
846 | out: | |
847 | mutex_unlock(&devlink_mutex); | |
848 | ||
849 | cb->args[0] = idx; | |
850 | return msg->len; | |
851 | } | |
852 | ||
853 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
854 | struct devlink_sb *devlink_sb, | |
855 | u16 pool_index, enum devlink_command cmd, | |
856 | u32 portid, u32 seq, int flags) | |
857 | { | |
858 | struct devlink_sb_pool_info pool_info; | |
859 | void *hdr; | |
860 | int err; | |
861 | ||
862 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
863 | pool_index, &pool_info); | |
864 | if (err) | |
865 | return err; | |
866 | ||
867 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
868 | if (!hdr) | |
869 | return -EMSGSIZE; | |
870 | ||
871 | if (devlink_nl_put_handle(msg, devlink)) | |
872 | goto nla_put_failure; | |
873 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
874 | goto nla_put_failure; | |
875 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
876 | goto nla_put_failure; | |
877 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
878 | goto nla_put_failure; | |
879 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
880 | goto nla_put_failure; | |
881 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
882 | pool_info.threshold_type)) | |
883 | goto nla_put_failure; | |
884 | ||
885 | genlmsg_end(msg, hdr); | |
886 | return 0; | |
887 | ||
888 | nla_put_failure: | |
889 | genlmsg_cancel(msg, hdr); | |
890 | return -EMSGSIZE; | |
891 | } | |
892 | ||
893 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
894 | struct genl_info *info) | |
895 | { | |
896 | struct devlink *devlink = info->user_ptr[0]; | |
897 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
898 | struct sk_buff *msg; | |
899 | u16 pool_index; | |
900 | int err; | |
901 | ||
902 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
903 | &pool_index); | |
904 | if (err) | |
905 | return err; | |
906 | ||
907 | if (!devlink->ops || !devlink->ops->sb_pool_get) | |
908 | return -EOPNOTSUPP; | |
909 | ||
910 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
911 | if (!msg) | |
912 | return -ENOMEM; | |
913 | ||
914 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
915 | DEVLINK_CMD_SB_POOL_NEW, | |
916 | info->snd_portid, info->snd_seq, 0); | |
917 | if (err) { | |
918 | nlmsg_free(msg); | |
919 | return err; | |
920 | } | |
921 | ||
922 | return genlmsg_reply(msg, info); | |
923 | } | |
924 | ||
925 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
926 | struct devlink *devlink, | |
927 | struct devlink_sb *devlink_sb, | |
928 | u32 portid, u32 seq) | |
929 | { | |
930 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
931 | u16 pool_index; | |
932 | int err; | |
933 | ||
934 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
935 | if (*p_idx < start) { | |
936 | (*p_idx)++; | |
937 | continue; | |
938 | } | |
939 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
940 | devlink_sb, | |
941 | pool_index, | |
942 | DEVLINK_CMD_SB_POOL_NEW, | |
943 | portid, seq, NLM_F_MULTI); | |
944 | if (err) | |
945 | return err; | |
946 | (*p_idx)++; | |
947 | } | |
948 | return 0; | |
949 | } | |
950 | ||
951 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
952 | struct netlink_callback *cb) | |
953 | { | |
954 | struct devlink *devlink; | |
955 | struct devlink_sb *devlink_sb; | |
956 | int start = cb->args[0]; | |
957 | int idx = 0; | |
958 | int err; | |
959 | ||
960 | mutex_lock(&devlink_mutex); | |
961 | list_for_each_entry(devlink, &devlink_list, list) { | |
962 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
963 | !devlink->ops || !devlink->ops->sb_pool_get) | |
964 | continue; | |
2406e7e5 | 965 | mutex_lock(&devlink->lock); |
bf797471 JP |
966 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
967 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
968 | devlink_sb, | |
969 | NETLINK_CB(cb->skb).portid, | |
970 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
971 | if (err && err != -EOPNOTSUPP) { |
972 | mutex_unlock(&devlink->lock); | |
bf797471 | 973 | goto out; |
2406e7e5 | 974 | } |
bf797471 | 975 | } |
2406e7e5 | 976 | mutex_unlock(&devlink->lock); |
bf797471 JP |
977 | } |
978 | out: | |
979 | mutex_unlock(&devlink_mutex); | |
980 | ||
981 | cb->args[0] = idx; | |
982 | return msg->len; | |
983 | } | |
984 | ||
985 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
986 | u16 pool_index, u32 size, | |
987 | enum devlink_sb_threshold_type threshold_type) | |
988 | ||
989 | { | |
990 | const struct devlink_ops *ops = devlink->ops; | |
991 | ||
992 | if (ops && ops->sb_pool_set) | |
993 | return ops->sb_pool_set(devlink, sb_index, pool_index, | |
994 | size, threshold_type); | |
995 | return -EOPNOTSUPP; | |
996 | } | |
997 | ||
998 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
999 | struct genl_info *info) | |
1000 | { | |
1001 | struct devlink *devlink = info->user_ptr[0]; | |
1002 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1003 | enum devlink_sb_threshold_type threshold_type; | |
1004 | u16 pool_index; | |
1005 | u32 size; | |
1006 | int err; | |
1007 | ||
1008 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1009 | &pool_index); | |
1010 | if (err) | |
1011 | return err; | |
1012 | ||
1013 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
1014 | if (err) | |
1015 | return err; | |
1016 | ||
1017 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
1018 | return -EINVAL; | |
1019 | ||
1020 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
1021 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
1022 | pool_index, size, threshold_type); | |
1023 | } | |
1024 | ||
1025 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
1026 | struct devlink *devlink, | |
1027 | struct devlink_port *devlink_port, | |
1028 | struct devlink_sb *devlink_sb, | |
1029 | u16 pool_index, | |
1030 | enum devlink_command cmd, | |
1031 | u32 portid, u32 seq, int flags) | |
1032 | { | |
df38dafd | 1033 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1034 | u32 threshold; |
1035 | void *hdr; | |
1036 | int err; | |
1037 | ||
df38dafd JP |
1038 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
1039 | pool_index, &threshold); | |
bf797471 JP |
1040 | if (err) |
1041 | return err; | |
1042 | ||
1043 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1044 | if (!hdr) | |
1045 | return -EMSGSIZE; | |
1046 | ||
1047 | if (devlink_nl_put_handle(msg, devlink)) | |
1048 | goto nla_put_failure; | |
1049 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1050 | goto nla_put_failure; | |
1051 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1052 | goto nla_put_failure; | |
1053 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1054 | goto nla_put_failure; | |
1055 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1056 | goto nla_put_failure; | |
1057 | ||
df38dafd JP |
1058 | if (ops->sb_occ_port_pool_get) { |
1059 | u32 cur; | |
1060 | u32 max; | |
1061 | ||
1062 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
1063 | pool_index, &cur, &max); | |
1064 | if (err && err != -EOPNOTSUPP) | |
1065 | return err; | |
1066 | if (!err) { | |
1067 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1068 | goto nla_put_failure; | |
1069 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1070 | goto nla_put_failure; | |
1071 | } | |
1072 | } | |
1073 | ||
bf797471 JP |
1074 | genlmsg_end(msg, hdr); |
1075 | return 0; | |
1076 | ||
1077 | nla_put_failure: | |
1078 | genlmsg_cancel(msg, hdr); | |
1079 | return -EMSGSIZE; | |
1080 | } | |
1081 | ||
1082 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
1083 | struct genl_info *info) | |
1084 | { | |
1085 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1086 | struct devlink *devlink = devlink_port->devlink; | |
1087 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1088 | struct sk_buff *msg; | |
1089 | u16 pool_index; | |
1090 | int err; | |
1091 | ||
1092 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1093 | &pool_index); | |
1094 | if (err) | |
1095 | return err; | |
1096 | ||
1097 | if (!devlink->ops || !devlink->ops->sb_port_pool_get) | |
1098 | return -EOPNOTSUPP; | |
1099 | ||
1100 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1101 | if (!msg) | |
1102 | return -ENOMEM; | |
1103 | ||
1104 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
1105 | devlink_sb, pool_index, | |
1106 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1107 | info->snd_portid, info->snd_seq, 0); | |
1108 | if (err) { | |
1109 | nlmsg_free(msg); | |
1110 | return err; | |
1111 | } | |
1112 | ||
1113 | return genlmsg_reply(msg, info); | |
1114 | } | |
1115 | ||
1116 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
1117 | struct devlink *devlink, | |
1118 | struct devlink_sb *devlink_sb, | |
1119 | u32 portid, u32 seq) | |
1120 | { | |
1121 | struct devlink_port *devlink_port; | |
1122 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
1123 | u16 pool_index; | |
1124 | int err; | |
1125 | ||
1126 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1127 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
1128 | if (*p_idx < start) { | |
1129 | (*p_idx)++; | |
1130 | continue; | |
1131 | } | |
1132 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
1133 | devlink_port, | |
1134 | devlink_sb, | |
1135 | pool_index, | |
1136 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1137 | portid, seq, | |
1138 | NLM_F_MULTI); | |
1139 | if (err) | |
1140 | return err; | |
1141 | (*p_idx)++; | |
1142 | } | |
1143 | } | |
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
1148 | struct netlink_callback *cb) | |
1149 | { | |
1150 | struct devlink *devlink; | |
1151 | struct devlink_sb *devlink_sb; | |
1152 | int start = cb->args[0]; | |
1153 | int idx = 0; | |
1154 | int err; | |
1155 | ||
1156 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1157 | list_for_each_entry(devlink, &devlink_list, list) { |
1158 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1159 | !devlink->ops || !devlink->ops->sb_port_pool_get) | |
1160 | continue; | |
2406e7e5 | 1161 | mutex_lock(&devlink->lock); |
bf797471 JP |
1162 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1163 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
1164 | devlink, devlink_sb, | |
1165 | NETLINK_CB(cb->skb).portid, | |
1166 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1167 | if (err && err != -EOPNOTSUPP) { |
1168 | mutex_unlock(&devlink->lock); | |
bf797471 | 1169 | goto out; |
2406e7e5 | 1170 | } |
bf797471 | 1171 | } |
2406e7e5 | 1172 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1173 | } |
1174 | out: | |
bf797471 JP |
1175 | mutex_unlock(&devlink_mutex); |
1176 | ||
1177 | cb->args[0] = idx; | |
1178 | return msg->len; | |
1179 | } | |
1180 | ||
1181 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
1182 | unsigned int sb_index, u16 pool_index, | |
1183 | u32 threshold) | |
1184 | ||
1185 | { | |
1186 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1187 | ||
1188 | if (ops && ops->sb_port_pool_set) | |
1189 | return ops->sb_port_pool_set(devlink_port, sb_index, | |
1190 | pool_index, threshold); | |
1191 | return -EOPNOTSUPP; | |
1192 | } | |
1193 | ||
1194 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
1195 | struct genl_info *info) | |
1196 | { | |
1197 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1198 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1199 | u16 pool_index; | |
1200 | u32 threshold; | |
1201 | int err; | |
1202 | ||
1203 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1204 | &pool_index); | |
1205 | if (err) | |
1206 | return err; | |
1207 | ||
1208 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1209 | return -EINVAL; | |
1210 | ||
1211 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1212 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
1213 | pool_index, threshold); | |
1214 | } | |
1215 | ||
1216 | static int | |
1217 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
1218 | struct devlink_port *devlink_port, | |
1219 | struct devlink_sb *devlink_sb, u16 tc_index, | |
1220 | enum devlink_sb_pool_type pool_type, | |
1221 | enum devlink_command cmd, | |
1222 | u32 portid, u32 seq, int flags) | |
1223 | { | |
df38dafd | 1224 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1225 | u16 pool_index; |
1226 | u32 threshold; | |
1227 | void *hdr; | |
1228 | int err; | |
1229 | ||
df38dafd JP |
1230 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
1231 | tc_index, pool_type, | |
1232 | &pool_index, &threshold); | |
bf797471 JP |
1233 | if (err) |
1234 | return err; | |
1235 | ||
1236 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1237 | if (!hdr) | |
1238 | return -EMSGSIZE; | |
1239 | ||
1240 | if (devlink_nl_put_handle(msg, devlink)) | |
1241 | goto nla_put_failure; | |
1242 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1243 | goto nla_put_failure; | |
1244 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1245 | goto nla_put_failure; | |
1246 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
1247 | goto nla_put_failure; | |
1248 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
1249 | goto nla_put_failure; | |
1250 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1251 | goto nla_put_failure; | |
1252 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1253 | goto nla_put_failure; | |
1254 | ||
df38dafd JP |
1255 | if (ops->sb_occ_tc_port_bind_get) { |
1256 | u32 cur; | |
1257 | u32 max; | |
1258 | ||
1259 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
1260 | devlink_sb->index, | |
1261 | tc_index, pool_type, | |
1262 | &cur, &max); | |
1263 | if (err && err != -EOPNOTSUPP) | |
1264 | return err; | |
1265 | if (!err) { | |
1266 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1267 | goto nla_put_failure; | |
1268 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1269 | goto nla_put_failure; | |
1270 | } | |
1271 | } | |
1272 | ||
bf797471 JP |
1273 | genlmsg_end(msg, hdr); |
1274 | return 0; | |
1275 | ||
1276 | nla_put_failure: | |
1277 | genlmsg_cancel(msg, hdr); | |
1278 | return -EMSGSIZE; | |
1279 | } | |
1280 | ||
1281 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
1282 | struct genl_info *info) | |
1283 | { | |
1284 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1285 | struct devlink *devlink = devlink_port->devlink; | |
1286 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1287 | struct sk_buff *msg; | |
1288 | enum devlink_sb_pool_type pool_type; | |
1289 | u16 tc_index; | |
1290 | int err; | |
1291 | ||
1292 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1293 | if (err) | |
1294 | return err; | |
1295 | ||
1296 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1297 | pool_type, &tc_index); | |
1298 | if (err) | |
1299 | return err; | |
1300 | ||
1301 | if (!devlink->ops || !devlink->ops->sb_tc_pool_bind_get) | |
1302 | return -EOPNOTSUPP; | |
1303 | ||
1304 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1305 | if (!msg) | |
1306 | return -ENOMEM; | |
1307 | ||
1308 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
1309 | devlink_sb, tc_index, pool_type, | |
1310 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1311 | info->snd_portid, | |
1312 | info->snd_seq, 0); | |
1313 | if (err) { | |
1314 | nlmsg_free(msg); | |
1315 | return err; | |
1316 | } | |
1317 | ||
1318 | return genlmsg_reply(msg, info); | |
1319 | } | |
1320 | ||
1321 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1322 | int start, int *p_idx, | |
1323 | struct devlink *devlink, | |
1324 | struct devlink_sb *devlink_sb, | |
1325 | u32 portid, u32 seq) | |
1326 | { | |
1327 | struct devlink_port *devlink_port; | |
1328 | u16 tc_index; | |
1329 | int err; | |
1330 | ||
1331 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1332 | for (tc_index = 0; | |
1333 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
1334 | if (*p_idx < start) { | |
1335 | (*p_idx)++; | |
1336 | continue; | |
1337 | } | |
1338 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1339 | devlink_port, | |
1340 | devlink_sb, | |
1341 | tc_index, | |
1342 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
1343 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1344 | portid, seq, | |
1345 | NLM_F_MULTI); | |
1346 | if (err) | |
1347 | return err; | |
1348 | (*p_idx)++; | |
1349 | } | |
1350 | for (tc_index = 0; | |
1351 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
1352 | if (*p_idx < start) { | |
1353 | (*p_idx)++; | |
1354 | continue; | |
1355 | } | |
1356 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1357 | devlink_port, | |
1358 | devlink_sb, | |
1359 | tc_index, | |
1360 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
1361 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1362 | portid, seq, | |
1363 | NLM_F_MULTI); | |
1364 | if (err) | |
1365 | return err; | |
1366 | (*p_idx)++; | |
1367 | } | |
1368 | } | |
1369 | return 0; | |
1370 | } | |
1371 | ||
1372 | static int | |
1373 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1374 | struct netlink_callback *cb) | |
1375 | { | |
1376 | struct devlink *devlink; | |
1377 | struct devlink_sb *devlink_sb; | |
1378 | int start = cb->args[0]; | |
1379 | int idx = 0; | |
1380 | int err; | |
1381 | ||
1382 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1383 | list_for_each_entry(devlink, &devlink_list, list) { |
1384 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1385 | !devlink->ops || !devlink->ops->sb_tc_pool_bind_get) | |
1386 | continue; | |
2406e7e5 AS |
1387 | |
1388 | mutex_lock(&devlink->lock); | |
bf797471 JP |
1389 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1390 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
1391 | devlink, | |
1392 | devlink_sb, | |
1393 | NETLINK_CB(cb->skb).portid, | |
1394 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1395 | if (err && err != -EOPNOTSUPP) { |
1396 | mutex_unlock(&devlink->lock); | |
bf797471 | 1397 | goto out; |
2406e7e5 | 1398 | } |
bf797471 | 1399 | } |
2406e7e5 | 1400 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1401 | } |
1402 | out: | |
bf797471 JP |
1403 | mutex_unlock(&devlink_mutex); |
1404 | ||
1405 | cb->args[0] = idx; | |
1406 | return msg->len; | |
1407 | } | |
1408 | ||
1409 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
1410 | unsigned int sb_index, u16 tc_index, | |
1411 | enum devlink_sb_pool_type pool_type, | |
1412 | u16 pool_index, u32 threshold) | |
1413 | ||
1414 | { | |
1415 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1416 | ||
1417 | if (ops && ops->sb_tc_pool_bind_set) | |
1418 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, | |
1419 | tc_index, pool_type, | |
1420 | pool_index, threshold); | |
1421 | return -EOPNOTSUPP; | |
1422 | } | |
1423 | ||
1424 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
1425 | struct genl_info *info) | |
1426 | { | |
1427 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1428 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1429 | enum devlink_sb_pool_type pool_type; | |
1430 | u16 tc_index; | |
1431 | u16 pool_index; | |
1432 | u32 threshold; | |
1433 | int err; | |
1434 | ||
1435 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1436 | if (err) | |
1437 | return err; | |
1438 | ||
1439 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1440 | pool_type, &tc_index); | |
1441 | if (err) | |
1442 | return err; | |
1443 | ||
1444 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1445 | &pool_index); | |
1446 | if (err) | |
1447 | return err; | |
1448 | ||
1449 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1450 | return -EINVAL; | |
1451 | ||
1452 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1453 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
1454 | tc_index, pool_type, | |
1455 | pool_index, threshold); | |
1456 | } | |
1457 | ||
df38dafd JP |
1458 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
1459 | struct genl_info *info) | |
1460 | { | |
1461 | struct devlink *devlink = info->user_ptr[0]; | |
1462 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1463 | const struct devlink_ops *ops = devlink->ops; | |
1464 | ||
1465 | if (ops && ops->sb_occ_snapshot) | |
1466 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); | |
1467 | return -EOPNOTSUPP; | |
1468 | } | |
1469 | ||
1470 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
1471 | struct genl_info *info) | |
1472 | { | |
1473 | struct devlink *devlink = info->user_ptr[0]; | |
1474 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1475 | const struct devlink_ops *ops = devlink->ops; | |
1476 | ||
1477 | if (ops && ops->sb_occ_max_clear) | |
1478 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); | |
1479 | return -EOPNOTSUPP; | |
1480 | } | |
1481 | ||
21e3d2dd JP |
1482 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
1483 | enum devlink_command cmd, u32 portid, | |
1484 | u32 seq, int flags) | |
08f4b591 | 1485 | { |
59bfde01 | 1486 | const struct devlink_ops *ops = devlink->ops; |
f43e9b06 | 1487 | u8 inline_mode, encap_mode; |
08f4b591 | 1488 | void *hdr; |
59bfde01 RD |
1489 | int err = 0; |
1490 | u16 mode; | |
08f4b591 OG |
1491 | |
1492 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1493 | if (!hdr) | |
1494 | return -EMSGSIZE; | |
1495 | ||
59bfde01 RD |
1496 | err = devlink_nl_put_handle(msg, devlink); |
1497 | if (err) | |
1a6aa36b | 1498 | goto nla_put_failure; |
08f4b591 | 1499 | |
4456f61c JP |
1500 | if (ops->eswitch_mode_get) { |
1501 | err = ops->eswitch_mode_get(devlink, &mode); | |
1502 | if (err) | |
1503 | goto nla_put_failure; | |
1504 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
1505 | if (err) | |
1506 | goto nla_put_failure; | |
1507 | } | |
59bfde01 RD |
1508 | |
1509 | if (ops->eswitch_inline_mode_get) { | |
1510 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
1511 | if (err) | |
1a6aa36b | 1512 | goto nla_put_failure; |
59bfde01 RD |
1513 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
1514 | inline_mode); | |
1515 | if (err) | |
1a6aa36b | 1516 | goto nla_put_failure; |
59bfde01 | 1517 | } |
08f4b591 | 1518 | |
f43e9b06 RD |
1519 | if (ops->eswitch_encap_mode_get) { |
1520 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
1521 | if (err) | |
1522 | goto nla_put_failure; | |
1523 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
1524 | if (err) | |
1525 | goto nla_put_failure; | |
1526 | } | |
1527 | ||
08f4b591 OG |
1528 | genlmsg_end(msg, hdr); |
1529 | return 0; | |
1530 | ||
1a6aa36b | 1531 | nla_put_failure: |
08f4b591 | 1532 | genlmsg_cancel(msg, hdr); |
59bfde01 | 1533 | return err; |
08f4b591 OG |
1534 | } |
1535 | ||
adf200f3 JP |
1536 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
1537 | struct genl_info *info) | |
08f4b591 OG |
1538 | { |
1539 | struct devlink *devlink = info->user_ptr[0]; | |
1540 | const struct devlink_ops *ops = devlink->ops; | |
1541 | struct sk_buff *msg; | |
08f4b591 OG |
1542 | int err; |
1543 | ||
4456f61c | 1544 | if (!ops) |
08f4b591 OG |
1545 | return -EOPNOTSUPP; |
1546 | ||
08f4b591 OG |
1547 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1548 | if (!msg) | |
1549 | return -ENOMEM; | |
1550 | ||
21e3d2dd JP |
1551 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
1552 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
1553 | |
1554 | if (err) { | |
1555 | nlmsg_free(msg); | |
1556 | return err; | |
1557 | } | |
1558 | ||
1559 | return genlmsg_reply(msg, info); | |
1560 | } | |
1561 | ||
adf200f3 JP |
1562 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
1563 | struct genl_info *info) | |
08f4b591 OG |
1564 | { |
1565 | struct devlink *devlink = info->user_ptr[0]; | |
1566 | const struct devlink_ops *ops = devlink->ops; | |
f43e9b06 | 1567 | u8 inline_mode, encap_mode; |
59bfde01 | 1568 | int err = 0; |
f43e9b06 | 1569 | u16 mode; |
08f4b591 | 1570 | |
59bfde01 RD |
1571 | if (!ops) |
1572 | return -EOPNOTSUPP; | |
08f4b591 | 1573 | |
59bfde01 RD |
1574 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
1575 | if (!ops->eswitch_mode_set) | |
1576 | return -EOPNOTSUPP; | |
1577 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
1578 | err = ops->eswitch_mode_set(devlink, mode); | |
1579 | if (err) | |
1580 | return err; | |
1581 | } | |
08f4b591 | 1582 | |
59bfde01 RD |
1583 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
1584 | if (!ops->eswitch_inline_mode_set) | |
1585 | return -EOPNOTSUPP; | |
1586 | inline_mode = nla_get_u8( | |
1587 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
1588 | err = ops->eswitch_inline_mode_set(devlink, inline_mode); | |
1589 | if (err) | |
1590 | return err; | |
1591 | } | |
f43e9b06 RD |
1592 | |
1593 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
1594 | if (!ops->eswitch_encap_mode_set) | |
1595 | return -EOPNOTSUPP; | |
1596 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
1597 | err = ops->eswitch_encap_mode_set(devlink, encap_mode); | |
1598 | if (err) | |
1599 | return err; | |
1600 | } | |
1601 | ||
1555d204 AS |
1602 | return 0; |
1603 | } | |
1604 | ||
1605 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
1606 | struct devlink_dpipe_match *match) | |
1607 | { | |
1608 | struct devlink_dpipe_header *header = match->header; | |
1609 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
1610 | struct nlattr *match_attr; | |
1611 | ||
1612 | match_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_MATCH); | |
1613 | if (!match_attr) | |
1614 | return -EMSGSIZE; | |
1615 | ||
1616 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
1617 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
1618 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1619 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1620 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1621 | goto nla_put_failure; | |
1622 | ||
1623 | nla_nest_end(skb, match_attr); | |
1624 | return 0; | |
1625 | ||
1626 | nla_put_failure: | |
1627 | nla_nest_cancel(skb, match_attr); | |
1628 | return -EMSGSIZE; | |
1629 | } | |
1630 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
1631 | ||
1632 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
1633 | struct sk_buff *skb) | |
1634 | { | |
1635 | struct nlattr *matches_attr; | |
1636 | ||
1637 | matches_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1638 | if (!matches_attr) | |
1639 | return -EMSGSIZE; | |
1640 | ||
1641 | if (table->table_ops->matches_dump(table->priv, skb)) | |
1642 | goto nla_put_failure; | |
1643 | ||
1644 | nla_nest_end(skb, matches_attr); | |
1645 | return 0; | |
1646 | ||
1647 | nla_put_failure: | |
1648 | nla_nest_cancel(skb, matches_attr); | |
1649 | return -EMSGSIZE; | |
1650 | } | |
1651 | ||
1652 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
1653 | struct devlink_dpipe_action *action) | |
1654 | { | |
1655 | struct devlink_dpipe_header *header = action->header; | |
1656 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
1657 | struct nlattr *action_attr; | |
1658 | ||
1659 | action_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ACTION); | |
1660 | if (!action_attr) | |
1661 | return -EMSGSIZE; | |
1662 | ||
1663 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
1664 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
1665 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1666 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1667 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1668 | goto nla_put_failure; | |
1669 | ||
1670 | nla_nest_end(skb, action_attr); | |
1671 | return 0; | |
1672 | ||
1673 | nla_put_failure: | |
1674 | nla_nest_cancel(skb, action_attr); | |
1675 | return -EMSGSIZE; | |
1676 | } | |
1677 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
1678 | ||
1679 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
1680 | struct sk_buff *skb) | |
1681 | { | |
1682 | struct nlattr *actions_attr; | |
1683 | ||
1684 | actions_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1685 | if (!actions_attr) | |
1686 | return -EMSGSIZE; | |
1687 | ||
1688 | if (table->table_ops->actions_dump(table->priv, skb)) | |
1689 | goto nla_put_failure; | |
1690 | ||
1691 | nla_nest_end(skb, actions_attr); | |
1692 | return 0; | |
1693 | ||
1694 | nla_put_failure: | |
1695 | nla_nest_cancel(skb, actions_attr); | |
1696 | return -EMSGSIZE; | |
1697 | } | |
1698 | ||
1699 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
1700 | struct devlink_dpipe_table *table) | |
1701 | { | |
1702 | struct nlattr *table_attr; | |
ffd3cdcc | 1703 | u64 table_size; |
1555d204 | 1704 | |
ffd3cdcc | 1705 | table_size = table->table_ops->size_get(table->priv); |
1555d204 AS |
1706 | table_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1707 | if (!table_attr) | |
1708 | return -EMSGSIZE; | |
1709 | ||
1710 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 1711 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
1712 | DEVLINK_ATTR_PAD)) |
1713 | goto nla_put_failure; | |
1714 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
1715 | table->counters_enabled)) | |
1716 | goto nla_put_failure; | |
1717 | ||
56dc7cd0 | 1718 | if (table->resource_valid) { |
3d18e4f1 AS |
1719 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
1720 | table->resource_id, DEVLINK_ATTR_PAD) || | |
1721 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
1722 | table->resource_units, DEVLINK_ATTR_PAD)) | |
1723 | goto nla_put_failure; | |
56dc7cd0 | 1724 | } |
1555d204 AS |
1725 | if (devlink_dpipe_matches_put(table, skb)) |
1726 | goto nla_put_failure; | |
1727 | ||
1728 | if (devlink_dpipe_actions_put(table, skb)) | |
1729 | goto nla_put_failure; | |
1730 | ||
1731 | nla_nest_end(skb, table_attr); | |
1732 | return 0; | |
1733 | ||
1734 | nla_put_failure: | |
1735 | nla_nest_cancel(skb, table_attr); | |
1736 | return -EMSGSIZE; | |
1737 | } | |
1738 | ||
1739 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
1740 | struct genl_info *info) | |
1741 | { | |
1742 | int err; | |
1743 | ||
1744 | if (*pskb) { | |
1745 | err = genlmsg_reply(*pskb, info); | |
1746 | if (err) | |
1747 | return err; | |
1748 | } | |
1749 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1750 | if (!*pskb) | |
1751 | return -ENOMEM; | |
1752 | return 0; | |
1753 | } | |
1754 | ||
1755 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
1756 | enum devlink_command cmd, int flags, | |
1757 | struct list_head *dpipe_tables, | |
1758 | const char *table_name) | |
1759 | { | |
1760 | struct devlink *devlink = info->user_ptr[0]; | |
1761 | struct devlink_dpipe_table *table; | |
1762 | struct nlattr *tables_attr; | |
1763 | struct sk_buff *skb = NULL; | |
1764 | struct nlmsghdr *nlh; | |
1765 | bool incomplete; | |
1766 | void *hdr; | |
1767 | int i; | |
1768 | int err; | |
1769 | ||
1770 | table = list_first_entry(dpipe_tables, | |
1771 | struct devlink_dpipe_table, list); | |
1772 | start_again: | |
1773 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1774 | if (err) | |
1775 | return err; | |
1776 | ||
1777 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1778 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
1779 | if (!hdr) { |
1780 | nlmsg_free(skb); | |
1555d204 | 1781 | return -EMSGSIZE; |
6044bd4a | 1782 | } |
1555d204 AS |
1783 | |
1784 | if (devlink_nl_put_handle(skb, devlink)) | |
1785 | goto nla_put_failure; | |
1786 | tables_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLES); | |
1787 | if (!tables_attr) | |
1788 | goto nla_put_failure; | |
1789 | ||
1790 | i = 0; | |
1791 | incomplete = false; | |
1792 | list_for_each_entry_from(table, dpipe_tables, list) { | |
1793 | if (!table_name) { | |
1794 | err = devlink_dpipe_table_put(skb, table); | |
1795 | if (err) { | |
1796 | if (!i) | |
1797 | goto err_table_put; | |
1798 | incomplete = true; | |
1799 | break; | |
1800 | } | |
1801 | } else { | |
1802 | if (!strcmp(table->name, table_name)) { | |
1803 | err = devlink_dpipe_table_put(skb, table); | |
1804 | if (err) | |
1805 | break; | |
1806 | } | |
1807 | } | |
1808 | i++; | |
1809 | } | |
1810 | ||
1811 | nla_nest_end(skb, tables_attr); | |
1812 | genlmsg_end(skb, hdr); | |
1813 | if (incomplete) | |
1814 | goto start_again; | |
1815 | ||
1816 | send_done: | |
1817 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1818 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
1819 | if (!nlh) { | |
1820 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1821 | if (err) | |
7fe4d6dc | 1822 | return err; |
1555d204 AS |
1823 | goto send_done; |
1824 | } | |
1825 | ||
1826 | return genlmsg_reply(skb, info); | |
1827 | ||
1828 | nla_put_failure: | |
1829 | err = -EMSGSIZE; | |
1830 | err_table_put: | |
1555d204 AS |
1831 | nlmsg_free(skb); |
1832 | return err; | |
1833 | } | |
1834 | ||
1835 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
1836 | struct genl_info *info) | |
1837 | { | |
1838 | struct devlink *devlink = info->user_ptr[0]; | |
1839 | const char *table_name = NULL; | |
1840 | ||
1841 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
1842 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
1843 | ||
1844 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
1845 | &devlink->dpipe_table_list, | |
1846 | table_name); | |
1847 | } | |
1848 | ||
1849 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
1850 | struct devlink_dpipe_value *value) | |
1851 | { | |
1852 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
1853 | value->value_size, value->value)) | |
1854 | return -EMSGSIZE; | |
1855 | if (value->mask) | |
1856 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
1857 | value->value_size, value->mask)) | |
1858 | return -EMSGSIZE; | |
1859 | if (value->mapping_valid) | |
1860 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
1861 | value->mapping_value)) | |
1862 | return -EMSGSIZE; | |
1863 | return 0; | |
1864 | } | |
1865 | ||
1866 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
1867 | struct devlink_dpipe_value *value) | |
1868 | { | |
1869 | if (!value->action) | |
1870 | return -EINVAL; | |
1871 | if (devlink_dpipe_action_put(skb, value->action)) | |
1872 | return -EMSGSIZE; | |
1873 | if (devlink_dpipe_value_put(skb, value)) | |
1874 | return -EMSGSIZE; | |
1875 | return 0; | |
1876 | } | |
1877 | ||
1878 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
1879 | struct devlink_dpipe_value *values, | |
1880 | unsigned int values_count) | |
1881 | { | |
1882 | struct nlattr *action_attr; | |
1883 | int i; | |
1884 | int err; | |
1885 | ||
1886 | for (i = 0; i < values_count; i++) { | |
1887 | action_attr = nla_nest_start(skb, | |
1888 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1889 | if (!action_attr) | |
1890 | return -EMSGSIZE; | |
1891 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
1892 | if (err) | |
1893 | goto err_action_value_put; | |
1894 | nla_nest_end(skb, action_attr); | |
1895 | } | |
1896 | return 0; | |
1897 | ||
1898 | err_action_value_put: | |
1899 | nla_nest_cancel(skb, action_attr); | |
1900 | return err; | |
1901 | } | |
1902 | ||
1903 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
1904 | struct devlink_dpipe_value *value) | |
1905 | { | |
1906 | if (!value->match) | |
1907 | return -EINVAL; | |
1908 | if (devlink_dpipe_match_put(skb, value->match)) | |
1909 | return -EMSGSIZE; | |
1910 | if (devlink_dpipe_value_put(skb, value)) | |
1911 | return -EMSGSIZE; | |
1912 | return 0; | |
1913 | } | |
1914 | ||
1915 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
1916 | struct devlink_dpipe_value *values, | |
1917 | unsigned int values_count) | |
1918 | { | |
1919 | struct nlattr *match_attr; | |
1920 | int i; | |
1921 | int err; | |
1922 | ||
1923 | for (i = 0; i < values_count; i++) { | |
1924 | match_attr = nla_nest_start(skb, | |
1925 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1926 | if (!match_attr) | |
1927 | return -EMSGSIZE; | |
1928 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
1929 | if (err) | |
1930 | goto err_match_value_put; | |
1931 | nla_nest_end(skb, match_attr); | |
1932 | } | |
1933 | return 0; | |
1934 | ||
1935 | err_match_value_put: | |
1936 | nla_nest_cancel(skb, match_attr); | |
1937 | return err; | |
1938 | } | |
1939 | ||
1940 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
1941 | struct devlink_dpipe_entry *entry) | |
1942 | { | |
1943 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
1944 | int err; | |
1945 | ||
1946 | entry_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ENTRY); | |
1947 | if (!entry_attr) | |
1948 | return -EMSGSIZE; | |
1949 | ||
1950 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
1951 | DEVLINK_ATTR_PAD)) | |
1952 | goto nla_put_failure; | |
1953 | if (entry->counter_valid) | |
1954 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
1955 | entry->counter, DEVLINK_ATTR_PAD)) | |
1956 | goto nla_put_failure; | |
1957 | ||
1958 | matches_attr = nla_nest_start(skb, | |
1959 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1960 | if (!matches_attr) | |
1961 | goto nla_put_failure; | |
1962 | ||
1963 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
1964 | entry->match_values_count); | |
1965 | if (err) { | |
1966 | nla_nest_cancel(skb, matches_attr); | |
1967 | goto err_match_values_put; | |
1968 | } | |
1969 | nla_nest_end(skb, matches_attr); | |
1970 | ||
1971 | actions_attr = nla_nest_start(skb, | |
1972 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1973 | if (!actions_attr) | |
1974 | goto nla_put_failure; | |
1975 | ||
1976 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
1977 | entry->action_values_count); | |
1978 | if (err) { | |
1979 | nla_nest_cancel(skb, actions_attr); | |
1980 | goto err_action_values_put; | |
1981 | } | |
1982 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 1983 | |
1555d204 | 1984 | nla_nest_end(skb, entry_attr); |
59bfde01 | 1985 | return 0; |
1555d204 AS |
1986 | |
1987 | nla_put_failure: | |
1988 | err = -EMSGSIZE; | |
1989 | err_match_values_put: | |
1990 | err_action_values_put: | |
1991 | nla_nest_cancel(skb, entry_attr); | |
1992 | return err; | |
1993 | } | |
1994 | ||
1995 | static struct devlink_dpipe_table * | |
1996 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
1997 | const char *table_name) | |
1998 | { | |
1999 | struct devlink_dpipe_table *table; | |
2000 | ||
2001 | list_for_each_entry_rcu(table, dpipe_tables, list) { | |
2002 | if (!strcmp(table->name, table_name)) | |
2003 | return table; | |
2004 | } | |
2005 | return NULL; | |
2006 | } | |
2007 | ||
2008 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2009 | { | |
2010 | struct devlink *devlink; | |
2011 | int err; | |
2012 | ||
2013 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
2014 | dump_ctx->info); | |
2015 | if (err) | |
2016 | return err; | |
2017 | ||
2018 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
2019 | dump_ctx->info->snd_portid, | |
2020 | dump_ctx->info->snd_seq, | |
2021 | &devlink_nl_family, NLM_F_MULTI, | |
2022 | dump_ctx->cmd); | |
2023 | if (!dump_ctx->hdr) | |
2024 | goto nla_put_failure; | |
2025 | ||
2026 | devlink = dump_ctx->info->user_ptr[0]; | |
2027 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
2028 | goto nla_put_failure; | |
2029 | dump_ctx->nest = nla_nest_start(dump_ctx->skb, | |
2030 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
2031 | if (!dump_ctx->nest) | |
2032 | goto nla_put_failure; | |
2033 | return 0; | |
2034 | ||
2035 | nla_put_failure: | |
1555d204 AS |
2036 | nlmsg_free(dump_ctx->skb); |
2037 | return -EMSGSIZE; | |
2038 | } | |
2039 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
2040 | ||
2041 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
2042 | struct devlink_dpipe_entry *entry) | |
2043 | { | |
2044 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
2045 | } | |
2046 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
2047 | ||
2048 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2049 | { | |
2050 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
2051 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
2052 | return 0; | |
2053 | } | |
2054 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
2055 | ||
35807324 AS |
2056 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
2057 | ||
2058 | { | |
2059 | unsigned int value_count, value_index; | |
2060 | struct devlink_dpipe_value *value; | |
2061 | ||
2062 | value = entry->action_values; | |
2063 | value_count = entry->action_values_count; | |
2064 | for (value_index = 0; value_index < value_count; value_index++) { | |
2065 | kfree(value[value_index].value); | |
2066 | kfree(value[value_index].mask); | |
2067 | } | |
2068 | ||
2069 | value = entry->match_values; | |
2070 | value_count = entry->match_values_count; | |
2071 | for (value_index = 0; value_index < value_count; value_index++) { | |
2072 | kfree(value[value_index].value); | |
2073 | kfree(value[value_index].mask); | |
2074 | } | |
2075 | } | |
2076 | EXPORT_SYMBOL(devlink_dpipe_entry_clear); | |
2077 | ||
1555d204 AS |
2078 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
2079 | enum devlink_command cmd, int flags, | |
2080 | struct devlink_dpipe_table *table) | |
2081 | { | |
2082 | struct devlink_dpipe_dump_ctx dump_ctx; | |
2083 | struct nlmsghdr *nlh; | |
2084 | int err; | |
2085 | ||
2086 | dump_ctx.skb = NULL; | |
2087 | dump_ctx.cmd = cmd; | |
2088 | dump_ctx.info = info; | |
2089 | ||
2090 | err = table->table_ops->entries_dump(table->priv, | |
2091 | table->counters_enabled, | |
2092 | &dump_ctx); | |
2093 | if (err) | |
7fe4d6dc | 2094 | return err; |
1555d204 AS |
2095 | |
2096 | send_done: | |
2097 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
2098 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2099 | if (!nlh) { | |
2100 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
2101 | if (err) | |
7fe4d6dc | 2102 | return err; |
1555d204 AS |
2103 | goto send_done; |
2104 | } | |
2105 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
2106 | } |
2107 | ||
2108 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
2109 | struct genl_info *info) | |
2110 | { | |
2111 | struct devlink *devlink = info->user_ptr[0]; | |
2112 | struct devlink_dpipe_table *table; | |
2113 | const char *table_name; | |
2114 | ||
2115 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
2116 | return -EINVAL; | |
2117 | ||
2118 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2119 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2120 | table_name); | |
2121 | if (!table) | |
2122 | return -EINVAL; | |
2123 | ||
2124 | if (!table->table_ops->entries_dump) | |
2125 | return -EINVAL; | |
2126 | ||
2127 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
2128 | 0, table); | |
2129 | } | |
2130 | ||
2131 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
2132 | const struct devlink_dpipe_header *header) | |
2133 | { | |
2134 | struct devlink_dpipe_field *field; | |
2135 | struct nlattr *field_attr; | |
2136 | int i; | |
2137 | ||
2138 | for (i = 0; i < header->fields_count; i++) { | |
2139 | field = &header->fields[i]; | |
2140 | field_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_FIELD); | |
2141 | if (!field_attr) | |
2142 | return -EMSGSIZE; | |
2143 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
2144 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
2145 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
2146 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
2147 | goto nla_put_failure; | |
2148 | nla_nest_end(skb, field_attr); | |
2149 | } | |
2150 | return 0; | |
2151 | ||
2152 | nla_put_failure: | |
2153 | nla_nest_cancel(skb, field_attr); | |
2154 | return -EMSGSIZE; | |
2155 | } | |
2156 | ||
2157 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
2158 | struct devlink_dpipe_header *header) | |
2159 | { | |
2160 | struct nlattr *fields_attr, *header_attr; | |
2161 | int err; | |
2162 | ||
2163 | header_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER); | |
cb6bf9cf | 2164 | if (!header_attr) |
1555d204 AS |
2165 | return -EMSGSIZE; |
2166 | ||
2167 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
2168 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
2169 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
2170 | goto nla_put_failure; | |
2171 | ||
2172 | fields_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
2173 | if (!fields_attr) | |
2174 | goto nla_put_failure; | |
2175 | ||
2176 | err = devlink_dpipe_fields_put(skb, header); | |
2177 | if (err) { | |
2178 | nla_nest_cancel(skb, fields_attr); | |
2179 | goto nla_put_failure; | |
2180 | } | |
2181 | nla_nest_end(skb, fields_attr); | |
2182 | nla_nest_end(skb, header_attr); | |
2183 | return 0; | |
2184 | ||
2185 | nla_put_failure: | |
2186 | err = -EMSGSIZE; | |
2187 | nla_nest_cancel(skb, header_attr); | |
2188 | return err; | |
2189 | } | |
2190 | ||
2191 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
2192 | enum devlink_command cmd, int flags, | |
2193 | struct devlink_dpipe_headers * | |
2194 | dpipe_headers) | |
2195 | { | |
2196 | struct devlink *devlink = info->user_ptr[0]; | |
2197 | struct nlattr *headers_attr; | |
2198 | struct sk_buff *skb = NULL; | |
2199 | struct nlmsghdr *nlh; | |
2200 | void *hdr; | |
2201 | int i, j; | |
2202 | int err; | |
2203 | ||
2204 | i = 0; | |
2205 | start_again: | |
2206 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2207 | if (err) | |
2208 | return err; | |
2209 | ||
2210 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2211 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
2212 | if (!hdr) { |
2213 | nlmsg_free(skb); | |
1555d204 | 2214 | return -EMSGSIZE; |
6044bd4a | 2215 | } |
1555d204 AS |
2216 | |
2217 | if (devlink_nl_put_handle(skb, devlink)) | |
2218 | goto nla_put_failure; | |
2219 | headers_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADERS); | |
2220 | if (!headers_attr) | |
2221 | goto nla_put_failure; | |
2222 | ||
2223 | j = 0; | |
2224 | for (; i < dpipe_headers->headers_count; i++) { | |
2225 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
2226 | if (err) { | |
2227 | if (!j) | |
2228 | goto err_table_put; | |
2229 | break; | |
2230 | } | |
2231 | j++; | |
2232 | } | |
2233 | nla_nest_end(skb, headers_attr); | |
2234 | genlmsg_end(skb, hdr); | |
2235 | if (i != dpipe_headers->headers_count) | |
2236 | goto start_again; | |
2237 | ||
2238 | send_done: | |
2239 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2240 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2241 | if (!nlh) { | |
2242 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2243 | if (err) | |
7fe4d6dc | 2244 | return err; |
1555d204 AS |
2245 | goto send_done; |
2246 | } | |
2247 | return genlmsg_reply(skb, info); | |
2248 | ||
2249 | nla_put_failure: | |
2250 | err = -EMSGSIZE; | |
2251 | err_table_put: | |
1555d204 AS |
2252 | nlmsg_free(skb); |
2253 | return err; | |
2254 | } | |
2255 | ||
2256 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
2257 | struct genl_info *info) | |
2258 | { | |
2259 | struct devlink *devlink = info->user_ptr[0]; | |
2260 | ||
2261 | if (!devlink->dpipe_headers) | |
2262 | return -EOPNOTSUPP; | |
2263 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
2264 | 0, devlink->dpipe_headers); | |
2265 | } | |
2266 | ||
2267 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
2268 | const char *table_name, | |
2269 | bool enable) | |
2270 | { | |
2271 | struct devlink_dpipe_table *table; | |
2272 | ||
2273 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2274 | table_name); | |
2275 | if (!table) | |
2276 | return -EINVAL; | |
2277 | ||
2278 | if (table->counter_control_extern) | |
2279 | return -EOPNOTSUPP; | |
2280 | ||
2281 | if (!(table->counters_enabled ^ enable)) | |
2282 | return 0; | |
2283 | ||
2284 | table->counters_enabled = enable; | |
2285 | if (table->table_ops->counters_set_update) | |
2286 | table->table_ops->counters_set_update(table->priv, enable); | |
2287 | return 0; | |
2288 | } | |
2289 | ||
2290 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
2291 | struct genl_info *info) | |
2292 | { | |
2293 | struct devlink *devlink = info->user_ptr[0]; | |
2294 | const char *table_name; | |
2295 | bool counters_enable; | |
2296 | ||
2297 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
2298 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
2299 | return -EINVAL; | |
2300 | ||
2301 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2302 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
2303 | ||
2304 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
2305 | counters_enable); | |
08f4b591 OG |
2306 | } |
2307 | ||
43dd7512 | 2308 | static struct devlink_resource * |
d9f9b9a4 AS |
2309 | devlink_resource_find(struct devlink *devlink, |
2310 | struct devlink_resource *resource, u64 resource_id) | |
2311 | { | |
2312 | struct list_head *resource_list; | |
2313 | ||
2314 | if (resource) | |
2315 | resource_list = &resource->resource_list; | |
2316 | else | |
2317 | resource_list = &devlink->resource_list; | |
2318 | ||
2319 | list_for_each_entry(resource, resource_list, list) { | |
2320 | struct devlink_resource *child_resource; | |
2321 | ||
2322 | if (resource->id == resource_id) | |
2323 | return resource; | |
2324 | ||
2325 | child_resource = devlink_resource_find(devlink, resource, | |
2326 | resource_id); | |
2327 | if (child_resource) | |
2328 | return child_resource; | |
2329 | } | |
2330 | return NULL; | |
2331 | } | |
2332 | ||
43dd7512 WY |
2333 | static void |
2334 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
2335 | { |
2336 | struct devlink_resource *child_resource; | |
2337 | bool size_valid = true; | |
2338 | u64 parts_size = 0; | |
2339 | ||
2340 | if (list_empty(&resource->resource_list)) | |
2341 | goto out; | |
2342 | ||
2343 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
2344 | parts_size += child_resource->size_new; | |
2345 | ||
b9d17175 | 2346 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
2347 | size_valid = false; |
2348 | out: | |
2349 | resource->size_valid = size_valid; | |
2350 | } | |
2351 | ||
cc944ead AS |
2352 | static int |
2353 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
2354 | struct netlink_ext_ack *extack) | |
2355 | { | |
2356 | u64 reminder; | |
2357 | int err = 0; | |
2358 | ||
0f3e9c97 | 2359 | if (size > resource->size_params.size_max) { |
cc944ead AS |
2360 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
2361 | err = -EINVAL; | |
2362 | } | |
2363 | ||
0f3e9c97 | 2364 | if (size < resource->size_params.size_min) { |
cc944ead AS |
2365 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
2366 | err = -EINVAL; | |
2367 | } | |
2368 | ||
0f3e9c97 | 2369 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
2370 | if (reminder) { |
2371 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
2372 | err = -EINVAL; | |
2373 | } | |
2374 | ||
2375 | return err; | |
2376 | } | |
2377 | ||
d9f9b9a4 AS |
2378 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
2379 | struct genl_info *info) | |
2380 | { | |
2381 | struct devlink *devlink = info->user_ptr[0]; | |
2382 | struct devlink_resource *resource; | |
2383 | u64 resource_id; | |
2384 | u64 size; | |
2385 | int err; | |
2386 | ||
2387 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || | |
2388 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) | |
2389 | return -EINVAL; | |
2390 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
2391 | ||
2392 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
2393 | if (!resource) | |
2394 | return -EINVAL; | |
2395 | ||
d9f9b9a4 | 2396 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 2397 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
2398 | if (err) |
2399 | return err; | |
2400 | ||
2401 | resource->size_new = size; | |
2402 | devlink_resource_validate_children(resource); | |
2403 | if (resource->parent) | |
2404 | devlink_resource_validate_children(resource->parent); | |
2405 | return 0; | |
2406 | } | |
2407 | ||
3d18e4f1 | 2408 | static int |
d9f9b9a4 AS |
2409 | devlink_resource_size_params_put(struct devlink_resource *resource, |
2410 | struct sk_buff *skb) | |
2411 | { | |
2412 | struct devlink_resource_size_params *size_params; | |
2413 | ||
77d27096 | 2414 | size_params = &resource->size_params; |
3d18e4f1 AS |
2415 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
2416 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
2417 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
2418 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
2419 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
2420 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
2421 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
2422 | return -EMSGSIZE; | |
2423 | return 0; | |
d9f9b9a4 AS |
2424 | } |
2425 | ||
fc56be47 JP |
2426 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
2427 | struct sk_buff *skb) | |
2428 | { | |
2429 | if (!resource->occ_get) | |
2430 | return 0; | |
2431 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
2432 | resource->occ_get(resource->occ_get_priv), | |
2433 | DEVLINK_ATTR_PAD); | |
2434 | } | |
2435 | ||
d9f9b9a4 AS |
2436 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
2437 | struct devlink_resource *resource) | |
2438 | { | |
2439 | struct devlink_resource *child_resource; | |
2440 | struct nlattr *child_resource_attr; | |
2441 | struct nlattr *resource_attr; | |
2442 | ||
2443 | resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE); | |
2444 | if (!resource_attr) | |
2445 | return -EMSGSIZE; | |
2446 | ||
2447 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
2448 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
2449 | DEVLINK_ATTR_PAD) || | |
2450 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
2451 | DEVLINK_ATTR_PAD)) | |
2452 | goto nla_put_failure; | |
2453 | if (resource->size != resource->size_new) | |
2454 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
2455 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
2456 | if (devlink_resource_occ_put(resource, skb)) |
2457 | goto nla_put_failure; | |
3d18e4f1 AS |
2458 | if (devlink_resource_size_params_put(resource, skb)) |
2459 | goto nla_put_failure; | |
d9f9b9a4 AS |
2460 | if (list_empty(&resource->resource_list)) |
2461 | goto out; | |
2462 | ||
2463 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
2464 | resource->size_valid)) | |
2465 | goto nla_put_failure; | |
2466 | ||
2467 | child_resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST); | |
2468 | if (!child_resource_attr) | |
2469 | goto nla_put_failure; | |
2470 | ||
2471 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
2472 | if (devlink_resource_put(devlink, skb, child_resource)) | |
2473 | goto resource_put_failure; | |
2474 | } | |
2475 | ||
2476 | nla_nest_end(skb, child_resource_attr); | |
2477 | out: | |
2478 | nla_nest_end(skb, resource_attr); | |
2479 | return 0; | |
2480 | ||
2481 | resource_put_failure: | |
2482 | nla_nest_cancel(skb, child_resource_attr); | |
2483 | nla_put_failure: | |
2484 | nla_nest_cancel(skb, resource_attr); | |
2485 | return -EMSGSIZE; | |
2486 | } | |
2487 | ||
2488 | static int devlink_resource_fill(struct genl_info *info, | |
2489 | enum devlink_command cmd, int flags) | |
2490 | { | |
2491 | struct devlink *devlink = info->user_ptr[0]; | |
2492 | struct devlink_resource *resource; | |
2493 | struct nlattr *resources_attr; | |
2494 | struct sk_buff *skb = NULL; | |
2495 | struct nlmsghdr *nlh; | |
2496 | bool incomplete; | |
2497 | void *hdr; | |
2498 | int i; | |
2499 | int err; | |
2500 | ||
2501 | resource = list_first_entry(&devlink->resource_list, | |
2502 | struct devlink_resource, list); | |
2503 | start_again: | |
2504 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2505 | if (err) | |
2506 | return err; | |
2507 | ||
2508 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2509 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
2510 | if (!hdr) { | |
2511 | nlmsg_free(skb); | |
2512 | return -EMSGSIZE; | |
2513 | } | |
2514 | ||
2515 | if (devlink_nl_put_handle(skb, devlink)) | |
2516 | goto nla_put_failure; | |
2517 | ||
2518 | resources_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST); | |
2519 | if (!resources_attr) | |
2520 | goto nla_put_failure; | |
2521 | ||
2522 | incomplete = false; | |
2523 | i = 0; | |
2524 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
2525 | err = devlink_resource_put(devlink, skb, resource); | |
2526 | if (err) { | |
2527 | if (!i) | |
2528 | goto err_resource_put; | |
2529 | incomplete = true; | |
2530 | break; | |
2531 | } | |
2532 | i++; | |
2533 | } | |
2534 | nla_nest_end(skb, resources_attr); | |
2535 | genlmsg_end(skb, hdr); | |
2536 | if (incomplete) | |
2537 | goto start_again; | |
2538 | send_done: | |
2539 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2540 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2541 | if (!nlh) { | |
2542 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2543 | if (err) | |
2544 | goto err_skb_send_alloc; | |
2545 | goto send_done; | |
2546 | } | |
2547 | return genlmsg_reply(skb, info); | |
2548 | ||
2549 | nla_put_failure: | |
2550 | err = -EMSGSIZE; | |
2551 | err_resource_put: | |
2552 | err_skb_send_alloc: | |
d9f9b9a4 AS |
2553 | nlmsg_free(skb); |
2554 | return err; | |
2555 | } | |
2556 | ||
2557 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
2558 | struct genl_info *info) | |
2559 | { | |
2560 | struct devlink *devlink = info->user_ptr[0]; | |
2561 | ||
2562 | if (list_empty(&devlink->resource_list)) | |
2563 | return -EOPNOTSUPP; | |
2564 | ||
2565 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
2566 | } | |
2567 | ||
2d8dc5bb AS |
2568 | static int |
2569 | devlink_resources_validate(struct devlink *devlink, | |
2570 | struct devlink_resource *resource, | |
2571 | struct genl_info *info) | |
2572 | { | |
2573 | struct list_head *resource_list; | |
2574 | int err = 0; | |
2575 | ||
2576 | if (resource) | |
2577 | resource_list = &resource->resource_list; | |
2578 | else | |
2579 | resource_list = &devlink->resource_list; | |
2580 | ||
2581 | list_for_each_entry(resource, resource_list, list) { | |
2582 | if (!resource->size_valid) | |
2583 | return -EINVAL; | |
2584 | err = devlink_resources_validate(devlink, resource, info); | |
2585 | if (err) | |
2586 | return err; | |
2587 | } | |
2588 | return err; | |
2589 | } | |
2590 | ||
2591 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) | |
2592 | { | |
2593 | struct devlink *devlink = info->user_ptr[0]; | |
2594 | int err; | |
2595 | ||
2596 | if (!devlink->ops->reload) | |
2597 | return -EOPNOTSUPP; | |
2598 | ||
2599 | err = devlink_resources_validate(devlink, NULL, info); | |
2600 | if (err) { | |
2601 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
2602 | return err; | |
2603 | } | |
ac0fc8a1 | 2604 | return devlink->ops->reload(devlink, info->extack); |
2d8dc5bb AS |
2605 | } |
2606 | ||
bfcd3a46 JP |
2607 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
2608 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, | |
2609 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
2610 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
2611 | [DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 }, | |
2612 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, | |
bf797471 JP |
2613 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
2614 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
2615 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
2616 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
2617 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
2618 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
2619 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
08f4b591 | 2620 | [DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 }, |
59bfde01 | 2621 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 2622 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
2623 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
2624 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
2625 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
2626 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
bfcd3a46 JP |
2627 | }; |
2628 | ||
2629 | static const struct genl_ops devlink_nl_ops[] = { | |
2630 | { | |
2631 | .cmd = DEVLINK_CMD_GET, | |
2632 | .doit = devlink_nl_cmd_get_doit, | |
2633 | .dumpit = devlink_nl_cmd_get_dumpit, | |
2634 | .policy = devlink_nl_policy, | |
1fc2257e | 2635 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
bfcd3a46 JP |
2636 | /* can be retrieved by unprivileged users */ |
2637 | }, | |
2638 | { | |
2639 | .cmd = DEVLINK_CMD_PORT_GET, | |
2640 | .doit = devlink_nl_cmd_port_get_doit, | |
2641 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
2642 | .policy = devlink_nl_policy, | |
2643 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
2644 | /* can be retrieved by unprivileged users */ | |
2645 | }, | |
2646 | { | |
2647 | .cmd = DEVLINK_CMD_PORT_SET, | |
2648 | .doit = devlink_nl_cmd_port_set_doit, | |
2649 | .policy = devlink_nl_policy, | |
2650 | .flags = GENL_ADMIN_PERM, | |
2651 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
2652 | }, | |
2653 | { | |
2654 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
2655 | .doit = devlink_nl_cmd_port_split_doit, | |
2656 | .policy = devlink_nl_policy, | |
2657 | .flags = GENL_ADMIN_PERM, | |
2406e7e5 AS |
2658 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
2659 | DEVLINK_NL_FLAG_NO_LOCK, | |
bfcd3a46 JP |
2660 | }, |
2661 | { | |
2662 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
2663 | .doit = devlink_nl_cmd_port_unsplit_doit, | |
2664 | .policy = devlink_nl_policy, | |
2665 | .flags = GENL_ADMIN_PERM, | |
2406e7e5 AS |
2666 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
2667 | DEVLINK_NL_FLAG_NO_LOCK, | |
bfcd3a46 | 2668 | }, |
bf797471 JP |
2669 | { |
2670 | .cmd = DEVLINK_CMD_SB_GET, | |
2671 | .doit = devlink_nl_cmd_sb_get_doit, | |
2672 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
2673 | .policy = devlink_nl_policy, | |
2674 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2675 | DEVLINK_NL_FLAG_NEED_SB, | |
2676 | /* can be retrieved by unprivileged users */ | |
2677 | }, | |
2678 | { | |
2679 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
2680 | .doit = devlink_nl_cmd_sb_pool_get_doit, | |
2681 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
2682 | .policy = devlink_nl_policy, | |
2683 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2684 | DEVLINK_NL_FLAG_NEED_SB, | |
2685 | /* can be retrieved by unprivileged users */ | |
2686 | }, | |
2687 | { | |
2688 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
2689 | .doit = devlink_nl_cmd_sb_pool_set_doit, | |
2690 | .policy = devlink_nl_policy, | |
2691 | .flags = GENL_ADMIN_PERM, | |
2692 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2693 | DEVLINK_NL_FLAG_NEED_SB, | |
2694 | }, | |
2695 | { | |
2696 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
2697 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, | |
2698 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
2699 | .policy = devlink_nl_policy, | |
2700 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
2701 | DEVLINK_NL_FLAG_NEED_SB, | |
2702 | /* can be retrieved by unprivileged users */ | |
2703 | }, | |
2704 | { | |
2705 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
2706 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, | |
2707 | .policy = devlink_nl_policy, | |
2708 | .flags = GENL_ADMIN_PERM, | |
2709 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
2710 | DEVLINK_NL_FLAG_NEED_SB, | |
2711 | }, | |
2712 | { | |
2713 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
2714 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, | |
2715 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
2716 | .policy = devlink_nl_policy, | |
2717 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
2718 | DEVLINK_NL_FLAG_NEED_SB, | |
2719 | /* can be retrieved by unprivileged users */ | |
2720 | }, | |
2721 | { | |
2722 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
2723 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, | |
2724 | .policy = devlink_nl_policy, | |
2725 | .flags = GENL_ADMIN_PERM, | |
2726 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
2727 | DEVLINK_NL_FLAG_NEED_SB, | |
2728 | }, | |
df38dafd JP |
2729 | { |
2730 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
2731 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, | |
2732 | .policy = devlink_nl_policy, | |
2733 | .flags = GENL_ADMIN_PERM, | |
2734 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2406e7e5 | 2735 | DEVLINK_NL_FLAG_NEED_SB, |
df38dafd JP |
2736 | }, |
2737 | { | |
2738 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
2739 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, | |
2740 | .policy = devlink_nl_policy, | |
2741 | .flags = GENL_ADMIN_PERM, | |
2742 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2406e7e5 | 2743 | DEVLINK_NL_FLAG_NEED_SB, |
df38dafd | 2744 | }, |
08f4b591 | 2745 | { |
adf200f3 JP |
2746 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
2747 | .doit = devlink_nl_cmd_eswitch_get_doit, | |
08f4b591 OG |
2748 | .policy = devlink_nl_policy, |
2749 | .flags = GENL_ADMIN_PERM, | |
2750 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2751 | }, | |
2752 | { | |
adf200f3 JP |
2753 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
2754 | .doit = devlink_nl_cmd_eswitch_set_doit, | |
08f4b591 OG |
2755 | .policy = devlink_nl_policy, |
2756 | .flags = GENL_ADMIN_PERM, | |
7ac1cc9a JK |
2757 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
2758 | DEVLINK_NL_FLAG_NO_LOCK, | |
08f4b591 | 2759 | }, |
1555d204 AS |
2760 | { |
2761 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
2762 | .doit = devlink_nl_cmd_dpipe_table_get, | |
2763 | .policy = devlink_nl_policy, | |
1555d204 | 2764 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 2765 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
2766 | }, |
2767 | { | |
2768 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
2769 | .doit = devlink_nl_cmd_dpipe_entries_get, | |
2770 | .policy = devlink_nl_policy, | |
1555d204 | 2771 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 2772 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
2773 | }, |
2774 | { | |
2775 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
2776 | .doit = devlink_nl_cmd_dpipe_headers_get, | |
2777 | .policy = devlink_nl_policy, | |
1555d204 | 2778 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 2779 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
2780 | }, |
2781 | { | |
2782 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
2783 | .doit = devlink_nl_cmd_dpipe_table_counters_set, | |
2784 | .policy = devlink_nl_policy, | |
2785 | .flags = GENL_ADMIN_PERM, | |
2786 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2787 | }, | |
d9f9b9a4 AS |
2788 | { |
2789 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
2790 | .doit = devlink_nl_cmd_resource_set, | |
2791 | .policy = devlink_nl_policy, | |
2792 | .flags = GENL_ADMIN_PERM, | |
2793 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
2794 | }, | |
2795 | { | |
2796 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
2797 | .doit = devlink_nl_cmd_resource_dump, | |
2798 | .policy = devlink_nl_policy, | |
d9f9b9a4 | 2799 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 2800 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 2801 | }, |
2d8dc5bb AS |
2802 | { |
2803 | .cmd = DEVLINK_CMD_RELOAD, | |
2804 | .doit = devlink_nl_cmd_reload, | |
2805 | .policy = devlink_nl_policy, | |
2806 | .flags = GENL_ADMIN_PERM, | |
2807 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2808 | DEVLINK_NL_FLAG_NO_LOCK, | |
2809 | }, | |
bfcd3a46 JP |
2810 | }; |
2811 | ||
56989f6d | 2812 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
2813 | .name = DEVLINK_GENL_NAME, |
2814 | .version = DEVLINK_GENL_VERSION, | |
2815 | .maxattr = DEVLINK_ATTR_MAX, | |
2816 | .netnsok = true, | |
2817 | .pre_doit = devlink_nl_pre_doit, | |
2818 | .post_doit = devlink_nl_post_doit, | |
2819 | .module = THIS_MODULE, | |
2820 | .ops = devlink_nl_ops, | |
2821 | .n_ops = ARRAY_SIZE(devlink_nl_ops), | |
2822 | .mcgrps = devlink_nl_mcgrps, | |
2823 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
2824 | }; | |
2825 | ||
bfcd3a46 JP |
2826 | /** |
2827 | * devlink_alloc - Allocate new devlink instance resources | |
2828 | * | |
2829 | * @ops: ops | |
2830 | * @priv_size: size of user private data | |
2831 | * | |
2832 | * Allocate new devlink instance resources, including devlink index | |
2833 | * and name. | |
2834 | */ | |
2835 | struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size) | |
2836 | { | |
2837 | struct devlink *devlink; | |
2838 | ||
2839 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); | |
2840 | if (!devlink) | |
2841 | return NULL; | |
2842 | devlink->ops = ops; | |
2843 | devlink_net_set(devlink, &init_net); | |
2844 | INIT_LIST_HEAD(&devlink->port_list); | |
bf797471 | 2845 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 2846 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 2847 | INIT_LIST_HEAD(&devlink->resource_list); |
2406e7e5 | 2848 | mutex_init(&devlink->lock); |
bfcd3a46 JP |
2849 | return devlink; |
2850 | } | |
2851 | EXPORT_SYMBOL_GPL(devlink_alloc); | |
2852 | ||
2853 | /** | |
2854 | * devlink_register - Register devlink instance | |
2855 | * | |
2856 | * @devlink: devlink | |
2857 | */ | |
2858 | int devlink_register(struct devlink *devlink, struct device *dev) | |
2859 | { | |
2860 | mutex_lock(&devlink_mutex); | |
2861 | devlink->dev = dev; | |
2862 | list_add_tail(&devlink->list, &devlink_list); | |
2863 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
2864 | mutex_unlock(&devlink_mutex); | |
2865 | return 0; | |
2866 | } | |
2867 | EXPORT_SYMBOL_GPL(devlink_register); | |
2868 | ||
2869 | /** | |
2870 | * devlink_unregister - Unregister devlink instance | |
2871 | * | |
2872 | * @devlink: devlink | |
2873 | */ | |
2874 | void devlink_unregister(struct devlink *devlink) | |
2875 | { | |
2876 | mutex_lock(&devlink_mutex); | |
2877 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
2878 | list_del(&devlink->list); | |
2879 | mutex_unlock(&devlink_mutex); | |
2880 | } | |
2881 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
2882 | ||
2883 | /** | |
2884 | * devlink_free - Free devlink instance resources | |
2885 | * | |
2886 | * @devlink: devlink | |
2887 | */ | |
2888 | void devlink_free(struct devlink *devlink) | |
2889 | { | |
2890 | kfree(devlink); | |
2891 | } | |
2892 | EXPORT_SYMBOL_GPL(devlink_free); | |
2893 | ||
2894 | /** | |
2895 | * devlink_port_register - Register devlink port | |
2896 | * | |
2897 | * @devlink: devlink | |
2898 | * @devlink_port: devlink port | |
2899 | * @port_index | |
2900 | * | |
2901 | * Register devlink port with provided port index. User can use | |
2902 | * any indexing, even hw-related one. devlink_port structure | |
2903 | * is convenient to be embedded inside user driver private structure. | |
2904 | * Note that the caller should take care of zeroing the devlink_port | |
2905 | * structure. | |
2906 | */ | |
2907 | int devlink_port_register(struct devlink *devlink, | |
2908 | struct devlink_port *devlink_port, | |
2909 | unsigned int port_index) | |
2910 | { | |
2406e7e5 | 2911 | mutex_lock(&devlink->lock); |
bfcd3a46 | 2912 | if (devlink_port_index_exists(devlink, port_index)) { |
2406e7e5 | 2913 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
2914 | return -EEXIST; |
2915 | } | |
2916 | devlink_port->devlink = devlink; | |
2917 | devlink_port->index = port_index; | |
bfcd3a46 JP |
2918 | devlink_port->registered = true; |
2919 | list_add_tail(&devlink_port->list, &devlink->port_list); | |
2406e7e5 | 2920 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
2921 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
2922 | return 0; | |
2923 | } | |
2924 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
2925 | ||
2926 | /** | |
2927 | * devlink_port_unregister - Unregister devlink port | |
2928 | * | |
2929 | * @devlink_port: devlink port | |
2930 | */ | |
2931 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
2932 | { | |
2406e7e5 AS |
2933 | struct devlink *devlink = devlink_port->devlink; |
2934 | ||
bfcd3a46 | 2935 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); |
2406e7e5 | 2936 | mutex_lock(&devlink->lock); |
bfcd3a46 | 2937 | list_del(&devlink_port->list); |
2406e7e5 | 2938 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
2939 | } |
2940 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
2941 | ||
2942 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
2943 | enum devlink_port_type type, | |
2944 | void *type_dev) | |
2945 | { | |
2946 | devlink_port->type = type; | |
2947 | devlink_port->type_dev = type_dev; | |
2948 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
2949 | } | |
2950 | ||
2951 | /** | |
2952 | * devlink_port_type_eth_set - Set port type to Ethernet | |
2953 | * | |
2954 | * @devlink_port: devlink port | |
2955 | * @netdev: related netdevice | |
2956 | */ | |
2957 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
2958 | struct net_device *netdev) | |
2959 | { | |
2960 | return __devlink_port_type_set(devlink_port, | |
2961 | DEVLINK_PORT_TYPE_ETH, netdev); | |
2962 | } | |
2963 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
2964 | ||
2965 | /** | |
2966 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
2967 | * | |
2968 | * @devlink_port: devlink port | |
2969 | * @ibdev: related IB device | |
2970 | */ | |
2971 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
2972 | struct ib_device *ibdev) | |
2973 | { | |
2974 | return __devlink_port_type_set(devlink_port, | |
2975 | DEVLINK_PORT_TYPE_IB, ibdev); | |
2976 | } | |
2977 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
2978 | ||
2979 | /** | |
2980 | * devlink_port_type_clear - Clear port type | |
2981 | * | |
2982 | * @devlink_port: devlink port | |
2983 | */ | |
2984 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
2985 | { | |
2986 | return __devlink_port_type_set(devlink_port, | |
2987 | DEVLINK_PORT_TYPE_NOTSET, NULL); | |
2988 | } | |
2989 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
2990 | ||
2991 | /** | |
b9ffcbaf | 2992 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
2993 | * |
2994 | * @devlink_port: devlink port | |
5ec1380a | 2995 | * @flavour: flavour of the port |
b9ffcbaf JP |
2996 | * @port_number: number of the port that is facing user, for example |
2997 | * the front panel port number | |
2998 | * @split: indicates if this is split port | |
2999 | * @split_subport_number: if the port is split, this is the number | |
3000 | * of subport. | |
bfcd3a46 | 3001 | */ |
b9ffcbaf | 3002 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
5ec1380a | 3003 | enum devlink_port_flavour flavour, |
b9ffcbaf JP |
3004 | u32 port_number, bool split, |
3005 | u32 split_subport_number) | |
bfcd3a46 | 3006 | { |
b9ffcbaf JP |
3007 | struct devlink_port_attrs *attrs = &devlink_port->attrs; |
3008 | ||
3009 | attrs->set = true; | |
5ec1380a | 3010 | attrs->flavour = flavour; |
b9ffcbaf JP |
3011 | attrs->port_number = port_number; |
3012 | attrs->split = split; | |
3013 | attrs->split_subport_number = split_subport_number; | |
bfcd3a46 JP |
3014 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
3015 | } | |
b9ffcbaf | 3016 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 3017 | |
08474c1a JP |
3018 | int devlink_port_get_phys_port_name(struct devlink_port *devlink_port, |
3019 | char *name, size_t len) | |
3020 | { | |
3021 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
3022 | int n = 0; | |
3023 | ||
3024 | if (!attrs->set) | |
3025 | return -EOPNOTSUPP; | |
3026 | ||
3027 | switch (attrs->flavour) { | |
3028 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
3029 | if (!attrs->split) | |
3030 | n = snprintf(name, len, "p%u", attrs->port_number); | |
3031 | else | |
3032 | n = snprintf(name, len, "p%us%u", attrs->port_number, | |
3033 | attrs->split_subport_number); | |
3034 | break; | |
3035 | case DEVLINK_PORT_FLAVOUR_CPU: | |
3036 | case DEVLINK_PORT_FLAVOUR_DSA: | |
3037 | /* As CPU and DSA ports do not have a netdevice associated | |
3038 | * case should not ever happen. | |
3039 | */ | |
3040 | WARN_ON(1); | |
3041 | return -EINVAL; | |
3042 | } | |
3043 | ||
3044 | if (n >= len) | |
3045 | return -EINVAL; | |
3046 | ||
3047 | return 0; | |
3048 | } | |
3049 | EXPORT_SYMBOL_GPL(devlink_port_get_phys_port_name); | |
3050 | ||
bf797471 JP |
3051 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, |
3052 | u32 size, u16 ingress_pools_count, | |
3053 | u16 egress_pools_count, u16 ingress_tc_count, | |
3054 | u16 egress_tc_count) | |
3055 | { | |
3056 | struct devlink_sb *devlink_sb; | |
3057 | int err = 0; | |
3058 | ||
2406e7e5 | 3059 | mutex_lock(&devlink->lock); |
bf797471 JP |
3060 | if (devlink_sb_index_exists(devlink, sb_index)) { |
3061 | err = -EEXIST; | |
3062 | goto unlock; | |
3063 | } | |
3064 | ||
3065 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
3066 | if (!devlink_sb) { | |
3067 | err = -ENOMEM; | |
3068 | goto unlock; | |
3069 | } | |
3070 | devlink_sb->index = sb_index; | |
3071 | devlink_sb->size = size; | |
3072 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
3073 | devlink_sb->egress_pools_count = egress_pools_count; | |
3074 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
3075 | devlink_sb->egress_tc_count = egress_tc_count; | |
3076 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
3077 | unlock: | |
2406e7e5 | 3078 | mutex_unlock(&devlink->lock); |
bf797471 JP |
3079 | return err; |
3080 | } | |
3081 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
3082 | ||
3083 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
3084 | { | |
3085 | struct devlink_sb *devlink_sb; | |
3086 | ||
2406e7e5 | 3087 | mutex_lock(&devlink->lock); |
bf797471 JP |
3088 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
3089 | WARN_ON(!devlink_sb); | |
3090 | list_del(&devlink_sb->list); | |
2406e7e5 | 3091 | mutex_unlock(&devlink->lock); |
bf797471 JP |
3092 | kfree(devlink_sb); |
3093 | } | |
3094 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); | |
3095 | ||
1555d204 AS |
3096 | /** |
3097 | * devlink_dpipe_headers_register - register dpipe headers | |
3098 | * | |
3099 | * @devlink: devlink | |
3100 | * @dpipe_headers: dpipe header array | |
3101 | * | |
3102 | * Register the headers supported by hardware. | |
3103 | */ | |
3104 | int devlink_dpipe_headers_register(struct devlink *devlink, | |
3105 | struct devlink_dpipe_headers *dpipe_headers) | |
3106 | { | |
2406e7e5 | 3107 | mutex_lock(&devlink->lock); |
1555d204 | 3108 | devlink->dpipe_headers = dpipe_headers; |
2406e7e5 | 3109 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3110 | return 0; |
3111 | } | |
3112 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register); | |
3113 | ||
3114 | /** | |
3115 | * devlink_dpipe_headers_unregister - unregister dpipe headers | |
3116 | * | |
3117 | * @devlink: devlink | |
3118 | * | |
3119 | * Unregister the headers supported by hardware. | |
3120 | */ | |
3121 | void devlink_dpipe_headers_unregister(struct devlink *devlink) | |
3122 | { | |
2406e7e5 | 3123 | mutex_lock(&devlink->lock); |
1555d204 | 3124 | devlink->dpipe_headers = NULL; |
2406e7e5 | 3125 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3126 | } |
3127 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister); | |
3128 | ||
3129 | /** | |
3130 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
3131 | * required | |
3132 | * @devlink: devlink | |
3133 | * @table_name: tables name | |
3134 | * | |
3135 | * Used by driver to check if counter allocation is required. | |
3136 | * After counter allocation is turned on the table entries | |
3137 | * are updated to include counter statistics. | |
3138 | * | |
3139 | * After that point on the driver must respect the counter | |
3140 | * state so that each entry added to the table is added | |
3141 | * with a counter. | |
3142 | */ | |
3143 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
3144 | const char *table_name) | |
3145 | { | |
3146 | struct devlink_dpipe_table *table; | |
3147 | bool enabled; | |
3148 | ||
3149 | rcu_read_lock(); | |
3150 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
3151 | table_name); | |
3152 | enabled = false; | |
3153 | if (table) | |
3154 | enabled = table->counters_enabled; | |
3155 | rcu_read_unlock(); | |
3156 | return enabled; | |
3157 | } | |
3158 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
3159 | ||
3160 | /** | |
3161 | * devlink_dpipe_table_register - register dpipe table | |
3162 | * | |
3163 | * @devlink: devlink | |
3164 | * @table_name: table name | |
3165 | * @table_ops: table ops | |
3166 | * @priv: priv | |
1555d204 AS |
3167 | * @counter_control_extern: external control for counters |
3168 | */ | |
3169 | int devlink_dpipe_table_register(struct devlink *devlink, | |
3170 | const char *table_name, | |
3171 | struct devlink_dpipe_table_ops *table_ops, | |
ffd3cdcc | 3172 | void *priv, bool counter_control_extern) |
1555d204 AS |
3173 | { |
3174 | struct devlink_dpipe_table *table; | |
3175 | ||
3176 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name)) | |
3177 | return -EEXIST; | |
3178 | ||
ffd3cdcc AS |
3179 | if (WARN_ON(!table_ops->size_get)) |
3180 | return -EINVAL; | |
3181 | ||
1555d204 AS |
3182 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
3183 | if (!table) | |
3184 | return -ENOMEM; | |
3185 | ||
3186 | table->name = table_name; | |
3187 | table->table_ops = table_ops; | |
3188 | table->priv = priv; | |
1555d204 AS |
3189 | table->counter_control_extern = counter_control_extern; |
3190 | ||
2406e7e5 | 3191 | mutex_lock(&devlink->lock); |
1555d204 | 3192 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
2406e7e5 | 3193 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3194 | return 0; |
3195 | } | |
3196 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_register); | |
3197 | ||
3198 | /** | |
3199 | * devlink_dpipe_table_unregister - unregister dpipe table | |
3200 | * | |
3201 | * @devlink: devlink | |
3202 | * @table_name: table name | |
3203 | */ | |
3204 | void devlink_dpipe_table_unregister(struct devlink *devlink, | |
3205 | const char *table_name) | |
3206 | { | |
3207 | struct devlink_dpipe_table *table; | |
3208 | ||
2406e7e5 | 3209 | mutex_lock(&devlink->lock); |
1555d204 AS |
3210 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
3211 | table_name); | |
3212 | if (!table) | |
3213 | goto unlock; | |
3214 | list_del_rcu(&table->list); | |
2406e7e5 | 3215 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3216 | kfree_rcu(table, rcu); |
3217 | return; | |
3218 | unlock: | |
2406e7e5 | 3219 | mutex_unlock(&devlink->lock); |
1555d204 AS |
3220 | } |
3221 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister); | |
3222 | ||
d9f9b9a4 AS |
3223 | /** |
3224 | * devlink_resource_register - devlink resource register | |
3225 | * | |
3226 | * @devlink: devlink | |
3227 | * @resource_name: resource's name | |
3228 | * @top_hierarchy: top hierarchy | |
3229 | * @reload_required: reload is required for new configuration to | |
3230 | * apply | |
3231 | * @resource_size: resource's size | |
3232 | * @resource_id: resource's id | |
3233 | * @parent_reosurce_id: resource's parent id | |
3234 | * @size params: size parameters | |
d9f9b9a4 AS |
3235 | */ |
3236 | int devlink_resource_register(struct devlink *devlink, | |
3237 | const char *resource_name, | |
d9f9b9a4 AS |
3238 | u64 resource_size, |
3239 | u64 resource_id, | |
3240 | u64 parent_resource_id, | |
fc56be47 | 3241 | const struct devlink_resource_size_params *size_params) |
d9f9b9a4 AS |
3242 | { |
3243 | struct devlink_resource *resource; | |
3244 | struct list_head *resource_list; | |
14530746 | 3245 | bool top_hierarchy; |
d9f9b9a4 AS |
3246 | int err = 0; |
3247 | ||
14530746 DA |
3248 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
3249 | ||
d9f9b9a4 AS |
3250 | mutex_lock(&devlink->lock); |
3251 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
3252 | if (resource) { | |
3253 | err = -EINVAL; | |
3254 | goto out; | |
3255 | } | |
3256 | ||
3257 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
3258 | if (!resource) { | |
3259 | err = -ENOMEM; | |
3260 | goto out; | |
3261 | } | |
3262 | ||
3263 | if (top_hierarchy) { | |
3264 | resource_list = &devlink->resource_list; | |
3265 | } else { | |
3266 | struct devlink_resource *parent_resource; | |
3267 | ||
3268 | parent_resource = devlink_resource_find(devlink, NULL, | |
3269 | parent_resource_id); | |
3270 | if (parent_resource) { | |
3271 | resource_list = &parent_resource->resource_list; | |
3272 | resource->parent = parent_resource; | |
3273 | } else { | |
b75703de | 3274 | kfree(resource); |
d9f9b9a4 AS |
3275 | err = -EINVAL; |
3276 | goto out; | |
3277 | } | |
3278 | } | |
3279 | ||
3280 | resource->name = resource_name; | |
3281 | resource->size = resource_size; | |
3282 | resource->size_new = resource_size; | |
3283 | resource->id = resource_id; | |
d9f9b9a4 | 3284 | resource->size_valid = true; |
77d27096 JP |
3285 | memcpy(&resource->size_params, size_params, |
3286 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
3287 | INIT_LIST_HEAD(&resource->resource_list); |
3288 | list_add_tail(&resource->list, resource_list); | |
3289 | out: | |
3290 | mutex_unlock(&devlink->lock); | |
3291 | return err; | |
3292 | } | |
3293 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
3294 | ||
3295 | /** | |
3296 | * devlink_resources_unregister - free all resources | |
3297 | * | |
3298 | * @devlink: devlink | |
3299 | * @resource: resource | |
3300 | */ | |
3301 | void devlink_resources_unregister(struct devlink *devlink, | |
3302 | struct devlink_resource *resource) | |
3303 | { | |
3304 | struct devlink_resource *tmp, *child_resource; | |
3305 | struct list_head *resource_list; | |
3306 | ||
3307 | if (resource) | |
3308 | resource_list = &resource->resource_list; | |
3309 | else | |
3310 | resource_list = &devlink->resource_list; | |
3311 | ||
3312 | if (!resource) | |
3313 | mutex_lock(&devlink->lock); | |
3314 | ||
3315 | list_for_each_entry_safe(child_resource, tmp, resource_list, list) { | |
3316 | devlink_resources_unregister(devlink, child_resource); | |
3317 | list_del(&child_resource->list); | |
3318 | kfree(child_resource); | |
3319 | } | |
3320 | ||
3321 | if (!resource) | |
3322 | mutex_unlock(&devlink->lock); | |
3323 | } | |
3324 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
3325 | ||
3326 | /** | |
3327 | * devlink_resource_size_get - get and update size | |
3328 | * | |
3329 | * @devlink: devlink | |
3330 | * @resource_id: the requested resource id | |
3331 | * @p_resource_size: ptr to update | |
3332 | */ | |
3333 | int devlink_resource_size_get(struct devlink *devlink, | |
3334 | u64 resource_id, | |
3335 | u64 *p_resource_size) | |
3336 | { | |
3337 | struct devlink_resource *resource; | |
3338 | int err = 0; | |
3339 | ||
3340 | mutex_lock(&devlink->lock); | |
3341 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
3342 | if (!resource) { | |
3343 | err = -EINVAL; | |
3344 | goto out; | |
3345 | } | |
3346 | *p_resource_size = resource->size_new; | |
3347 | resource->size = resource->size_new; | |
3348 | out: | |
3349 | mutex_unlock(&devlink->lock); | |
3350 | return err; | |
3351 | } | |
3352 | EXPORT_SYMBOL_GPL(devlink_resource_size_get); | |
3353 | ||
56dc7cd0 AS |
3354 | /** |
3355 | * devlink_dpipe_table_resource_set - set the resource id | |
3356 | * | |
3357 | * @devlink: devlink | |
3358 | * @table_name: table name | |
3359 | * @resource_id: resource id | |
3360 | * @resource_units: number of resource's units consumed per table's entry | |
3361 | */ | |
3362 | int devlink_dpipe_table_resource_set(struct devlink *devlink, | |
3363 | const char *table_name, u64 resource_id, | |
3364 | u64 resource_units) | |
3365 | { | |
3366 | struct devlink_dpipe_table *table; | |
3367 | int err = 0; | |
3368 | ||
3369 | mutex_lock(&devlink->lock); | |
3370 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
3371 | table_name); | |
3372 | if (!table) { | |
3373 | err = -EINVAL; | |
3374 | goto out; | |
3375 | } | |
3376 | table->resource_id = resource_id; | |
3377 | table->resource_units = resource_units; | |
3378 | table->resource_valid = true; | |
3379 | out: | |
3380 | mutex_unlock(&devlink->lock); | |
3381 | return err; | |
3382 | } | |
3383 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_resource_set); | |
3384 | ||
fc56be47 JP |
3385 | /** |
3386 | * devlink_resource_occ_get_register - register occupancy getter | |
3387 | * | |
3388 | * @devlink: devlink | |
3389 | * @resource_id: resource id | |
3390 | * @occ_get: occupancy getter callback | |
3391 | * @occ_get_priv: occupancy getter callback priv | |
3392 | */ | |
3393 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
3394 | u64 resource_id, | |
3395 | devlink_resource_occ_get_t *occ_get, | |
3396 | void *occ_get_priv) | |
3397 | { | |
3398 | struct devlink_resource *resource; | |
3399 | ||
3400 | mutex_lock(&devlink->lock); | |
3401 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
3402 | if (WARN_ON(!resource)) | |
3403 | goto out; | |
3404 | WARN_ON(resource->occ_get); | |
3405 | ||
3406 | resource->occ_get = occ_get; | |
3407 | resource->occ_get_priv = occ_get_priv; | |
3408 | out: | |
3409 | mutex_unlock(&devlink->lock); | |
3410 | } | |
3411 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
3412 | ||
3413 | /** | |
3414 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
3415 | * | |
3416 | * @devlink: devlink | |
3417 | * @resource_id: resource id | |
3418 | */ | |
3419 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
3420 | u64 resource_id) | |
3421 | { | |
3422 | struct devlink_resource *resource; | |
3423 | ||
3424 | mutex_lock(&devlink->lock); | |
3425 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
3426 | if (WARN_ON(!resource)) | |
3427 | goto out; | |
3428 | WARN_ON(!resource->occ_get); | |
3429 | ||
3430 | resource->occ_get = NULL; | |
3431 | resource->occ_get_priv = NULL; | |
3432 | out: | |
3433 | mutex_unlock(&devlink->lock); | |
3434 | } | |
3435 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
3436 | ||
bfcd3a46 JP |
3437 | static int __init devlink_module_init(void) |
3438 | { | |
489111e5 | 3439 | return genl_register_family(&devlink_nl_family); |
bfcd3a46 JP |
3440 | } |
3441 | ||
3442 | static void __exit devlink_module_exit(void) | |
3443 | { | |
3444 | genl_unregister_family(&devlink_nl_family); | |
3445 | } | |
3446 | ||
3447 | module_init(devlink_module_init); | |
3448 | module_exit(devlink_module_exit); | |
3449 | ||
3450 | MODULE_LICENSE("GPL v2"); | |
3451 | MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>"); | |
3452 | MODULE_DESCRIPTION("Network physical device Netlink interface"); | |
3453 | MODULE_ALIAS_GENL_FAMILY(DEVLINK_GENL_NAME); |