Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
bfcd3a46 JP |
2 | /* |
3 | * net/core/devlink.c - Network physical/parent device Netlink interface | |
4 | * | |
5 | * Heavily inspired by net/wireless/ | |
6 | * Copyright (c) 2016 Mellanox Technologies. All rights reserved. | |
7 | * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> | |
bfcd3a46 JP |
8 | */ |
9 | ||
b6459415 | 10 | #include <linux/etherdevice.h> |
bfcd3a46 JP |
11 | #include <linux/kernel.h> |
12 | #include <linux/module.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/gfp.h> | |
16 | #include <linux/device.h> | |
17 | #include <linux/list.h> | |
18 | #include <linux/netdevice.h> | |
b8f97554 | 19 | #include <linux/spinlock.h> |
b587bdaf | 20 | #include <linux/refcount.h> |
136bf27f | 21 | #include <linux/workqueue.h> |
0f420b6c IS |
22 | #include <linux/u64_stats_sync.h> |
23 | #include <linux/timekeeping.h> | |
bfcd3a46 JP |
24 | #include <rdma/ib_verbs.h> |
25 | #include <net/netlink.h> | |
26 | #include <net/genetlink.h> | |
27 | #include <net/rtnetlink.h> | |
28 | #include <net/net_namespace.h> | |
29 | #include <net/sock.h> | |
30 | #include <net/devlink.h> | |
e5224f0f JP |
31 | #define CREATE_TRACE_POINTS |
32 | #include <trace/events/devlink.h> | |
33 | ||
687125b5 | 34 | #include "devl_internal.h" |
fcdc8ce2 | 35 | |
c246f9b5 JP |
36 | struct devlink_linecard { |
37 | struct list_head list; | |
38 | struct devlink *devlink; | |
39 | unsigned int index; | |
fcdc8ce2 JP |
40 | const struct devlink_linecard_ops *ops; |
41 | void *priv; | |
42 | enum devlink_linecard_state state; | |
c4a67a21 | 43 | struct mutex state_lock; /* Protects state */ |
fcdc8ce2 JP |
44 | const char *type; |
45 | struct devlink_linecard_type *types; | |
46 | unsigned int types_count; | |
7b2d9a1a | 47 | struct devlink *nested_devlink; |
c246f9b5 JP |
48 | }; |
49 | ||
4c897cfc LR |
50 | /** |
51 | * struct devlink_resource - devlink resource | |
52 | * @name: name of the resource | |
53 | * @id: id, per devlink instance | |
54 | * @size: size of the resource | |
55 | * @size_new: updated size of the resource, reload is needed | |
56 | * @size_valid: valid in case the total size of the resource is valid | |
57 | * including its children | |
58 | * @parent: parent resource | |
59 | * @size_params: size parameters | |
60 | * @list: parent list | |
61 | * @resource_list: list of child resources | |
62 | * @occ_get: occupancy getter callback | |
63 | * @occ_get_priv: occupancy getter callback priv | |
64 | */ | |
65 | struct devlink_resource { | |
66 | const char *name; | |
67 | u64 id; | |
68 | u64 size; | |
69 | u64 size_new; | |
70 | bool size_valid; | |
71 | struct devlink_resource *parent; | |
72 | struct devlink_resource_size_params size_params; | |
73 | struct list_head list; | |
74 | struct list_head resource_list; | |
75 | devlink_resource_occ_get_t *occ_get; | |
76 | void *occ_get_priv; | |
77 | }; | |
78 | ||
11770091 AS |
79 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
80 | { | |
12bdc5e1 | 81 | .name = "destination mac", |
11770091 AS |
82 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
83 | .bitwidth = 48, | |
84 | }, | |
85 | }; | |
86 | ||
87 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
88 | .name = "ethernet", | |
89 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
90 | .fields = devlink_dpipe_fields_ethernet, | |
91 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
92 | .global = true, | |
93 | }; | |
c52ef04d | 94 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ethernet); |
11770091 | 95 | |
3fb886ec AS |
96 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
97 | { | |
98 | .name = "destination ip", | |
99 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
100 | .bitwidth = 32, | |
101 | }, | |
102 | }; | |
103 | ||
104 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
105 | .name = "ipv4", | |
106 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
107 | .fields = devlink_dpipe_fields_ipv4, | |
108 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
109 | .global = true, | |
110 | }; | |
c52ef04d | 111 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv4); |
3fb886ec | 112 | |
1797f5b3 AS |
113 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
114 | { | |
115 | .name = "destination ip", | |
116 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
117 | .bitwidth = 128, | |
118 | }, | |
119 | }; | |
120 | ||
121 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
122 | .name = "ipv6", | |
123 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
124 | .fields = devlink_dpipe_fields_ipv6, | |
125 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
126 | .global = true, | |
127 | }; | |
c52ef04d | 128 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv6); |
1797f5b3 | 129 | |
e5224f0f | 130 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
57186a5f | 131 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
5b88823b | 132 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_trap_report); |
bfcd3a46 | 133 | |
da65e9ff SD |
134 | #define DEVLINK_PORT_FN_CAPS_VALID_MASK \ |
135 | (_BITUL(__DEVLINK_PORT_FN_ATTR_CAPS_MAX) - 1) | |
136 | ||
a1e8ae90 PP |
137 | static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = { |
138 | [DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY }, | |
a556dded PP |
139 | [DEVLINK_PORT_FN_ATTR_STATE] = |
140 | NLA_POLICY_RANGE(NLA_U8, DEVLINK_PORT_FN_STATE_INACTIVE, | |
141 | DEVLINK_PORT_FN_STATE_ACTIVE), | |
da65e9ff SD |
142 | [DEVLINK_PORT_FN_ATTR_CAPS] = |
143 | NLA_POLICY_BITFIELD32(DEVLINK_PORT_FN_CAPS_VALID_MASK), | |
a1e8ae90 PP |
144 | }; |
145 | ||
08f588fa VG |
146 | static const struct nla_policy devlink_selftest_nl_policy[DEVLINK_ATTR_SELFTEST_ID_MAX + 1] = { |
147 | [DEVLINK_ATTR_SELFTEST_ID_FLASH] = { .type = NLA_FLAG }, | |
148 | }; | |
149 | ||
3fcb698d | 150 | #define ASSERT_DEVLINK_PORT_REGISTERED(devlink_port) \ |
081adcfe | 151 | WARN_ON_ONCE(!(devlink_port)->registered) |
3fcb698d | 152 | #define ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port) \ |
081adcfe | 153 | WARN_ON_ONCE((devlink_port)->registered) |
ae3bbc04 JP |
154 | #define ASSERT_DEVLINK_PORT_INITIALIZED(devlink_port) \ |
155 | WARN_ON_ONCE(!(devlink_port)->initialized) | |
3fcb698d | 156 | |
bfcd3a46 | 157 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, |
c7282b50 | 158 | unsigned int port_index) |
bfcd3a46 | 159 | { |
47b438cc | 160 | return xa_load(&devlink->ports, port_index); |
bfcd3a46 JP |
161 | } |
162 | ||
163 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
164 | struct nlattr **attrs) | |
165 | { | |
166 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
167 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
168 | struct devlink_port *devlink_port; | |
169 | ||
170 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
171 | if (!devlink_port) | |
172 | return ERR_PTR(-ENODEV); | |
173 | return devlink_port; | |
174 | } | |
175 | return ERR_PTR(-EINVAL); | |
176 | } | |
177 | ||
623cd13b JK |
178 | struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, |
179 | struct genl_info *info) | |
bfcd3a46 JP |
180 | { |
181 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
182 | } | |
183 | ||
4677efc4 DL |
184 | static inline bool |
185 | devlink_rate_is_leaf(struct devlink_rate *devlink_rate) | |
186 | { | |
187 | return devlink_rate->type == DEVLINK_RATE_TYPE_LEAF; | |
188 | } | |
189 | ||
a8ecb93e DL |
190 | static inline bool |
191 | devlink_rate_is_node(struct devlink_rate *devlink_rate) | |
192 | { | |
193 | return devlink_rate->type == DEVLINK_RATE_TYPE_NODE; | |
194 | } | |
195 | ||
4677efc4 DL |
196 | static struct devlink_rate * |
197 | devlink_rate_leaf_get_from_info(struct devlink *devlink, struct genl_info *info) | |
198 | { | |
199 | struct devlink_rate *devlink_rate; | |
200 | struct devlink_port *devlink_port; | |
201 | ||
202 | devlink_port = devlink_port_get_from_attrs(devlink, info->attrs); | |
203 | if (IS_ERR(devlink_port)) | |
204 | return ERR_CAST(devlink_port); | |
205 | devlink_rate = devlink_port->devlink_rate; | |
206 | return devlink_rate ?: ERR_PTR(-ENODEV); | |
207 | } | |
208 | ||
a8ecb93e DL |
209 | static struct devlink_rate * |
210 | devlink_rate_node_get_by_name(struct devlink *devlink, const char *node_name) | |
211 | { | |
212 | static struct devlink_rate *devlink_rate; | |
213 | ||
214 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { | |
215 | if (devlink_rate_is_node(devlink_rate) && | |
216 | !strcmp(node_name, devlink_rate->name)) | |
217 | return devlink_rate; | |
218 | } | |
219 | return ERR_PTR(-ENODEV); | |
220 | } | |
221 | ||
222 | static struct devlink_rate * | |
223 | devlink_rate_node_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
224 | { | |
225 | const char *rate_node_name; | |
226 | size_t len; | |
227 | ||
228 | if (!attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
229 | return ERR_PTR(-EINVAL); | |
230 | rate_node_name = nla_data(attrs[DEVLINK_ATTR_RATE_NODE_NAME]); | |
231 | len = strlen(rate_node_name); | |
232 | /* Name cannot be empty or decimal number */ | |
233 | if (!len || strspn(rate_node_name, "0123456789") == len) | |
234 | return ERR_PTR(-EINVAL); | |
235 | ||
236 | return devlink_rate_node_get_by_name(devlink, rate_node_name); | |
237 | } | |
238 | ||
623cd13b | 239 | struct devlink_rate * |
a8ecb93e DL |
240 | devlink_rate_node_get_from_info(struct devlink *devlink, struct genl_info *info) |
241 | { | |
242 | return devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
243 | } | |
244 | ||
623cd13b | 245 | struct devlink_rate * |
a8ecb93e DL |
246 | devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info) |
247 | { | |
248 | struct nlattr **attrs = info->attrs; | |
249 | ||
250 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) | |
251 | return devlink_rate_leaf_get_from_info(devlink, info); | |
252 | else if (attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
253 | return devlink_rate_node_get_from_info(devlink, info); | |
254 | else | |
255 | return ERR_PTR(-EINVAL); | |
256 | } | |
257 | ||
c246f9b5 JP |
258 | static struct devlink_linecard * |
259 | devlink_linecard_get_by_index(struct devlink *devlink, | |
260 | unsigned int linecard_index) | |
261 | { | |
262 | struct devlink_linecard *devlink_linecard; | |
263 | ||
264 | list_for_each_entry(devlink_linecard, &devlink->linecard_list, list) { | |
265 | if (devlink_linecard->index == linecard_index) | |
266 | return devlink_linecard; | |
267 | } | |
268 | return NULL; | |
269 | } | |
270 | ||
271 | static bool devlink_linecard_index_exists(struct devlink *devlink, | |
272 | unsigned int linecard_index) | |
273 | { | |
274 | return devlink_linecard_get_by_index(devlink, linecard_index); | |
275 | } | |
276 | ||
277 | static struct devlink_linecard * | |
278 | devlink_linecard_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
279 | { | |
280 | if (attrs[DEVLINK_ATTR_LINECARD_INDEX]) { | |
281 | u32 linecard_index = nla_get_u32(attrs[DEVLINK_ATTR_LINECARD_INDEX]); | |
282 | struct devlink_linecard *linecard; | |
283 | ||
c246f9b5 | 284 | linecard = devlink_linecard_get_by_index(devlink, linecard_index); |
c246f9b5 JP |
285 | if (!linecard) |
286 | return ERR_PTR(-ENODEV); | |
287 | return linecard; | |
288 | } | |
289 | return ERR_PTR(-EINVAL); | |
290 | } | |
291 | ||
623cd13b | 292 | struct devlink_linecard * |
c246f9b5 JP |
293 | devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info) |
294 | { | |
295 | return devlink_linecard_get_from_attrs(devlink, info->attrs); | |
296 | } | |
297 | ||
bf797471 JP |
298 | struct devlink_sb { |
299 | struct list_head list; | |
300 | unsigned int index; | |
301 | u32 size; | |
302 | u16 ingress_pools_count; | |
303 | u16 egress_pools_count; | |
304 | u16 ingress_tc_count; | |
305 | u16 egress_tc_count; | |
306 | }; | |
307 | ||
308 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
309 | { | |
310 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
311 | } | |
312 | ||
313 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
314 | unsigned int sb_index) | |
315 | { | |
316 | struct devlink_sb *devlink_sb; | |
317 | ||
318 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
319 | if (devlink_sb->index == sb_index) | |
320 | return devlink_sb; | |
321 | } | |
322 | return NULL; | |
323 | } | |
324 | ||
325 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
326 | unsigned int sb_index) | |
327 | { | |
328 | return devlink_sb_get_by_index(devlink, sb_index); | |
329 | } | |
330 | ||
331 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
332 | struct nlattr **attrs) | |
333 | { | |
334 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
335 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
336 | struct devlink_sb *devlink_sb; | |
337 | ||
338 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
339 | if (!devlink_sb) | |
340 | return ERR_PTR(-ENODEV); | |
341 | return devlink_sb; | |
342 | } | |
343 | return ERR_PTR(-EINVAL); | |
344 | } | |
345 | ||
346 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
347 | struct genl_info *info) | |
348 | { | |
349 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
350 | } | |
351 | ||
352 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
353 | struct nlattr **attrs, | |
354 | u16 *p_pool_index) | |
355 | { | |
356 | u16 val; | |
357 | ||
358 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
359 | return -EINVAL; | |
360 | ||
361 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
362 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
363 | return -EINVAL; | |
364 | *p_pool_index = val; | |
365 | return 0; | |
366 | } | |
367 | ||
368 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
369 | struct genl_info *info, | |
370 | u16 *p_pool_index) | |
371 | { | |
372 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
373 | p_pool_index); | |
374 | } | |
375 | ||
376 | static int | |
377 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
378 | enum devlink_sb_pool_type *p_pool_type) | |
379 | { | |
380 | u8 val; | |
381 | ||
382 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
383 | return -EINVAL; | |
384 | ||
385 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
386 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
387 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
388 | return -EINVAL; | |
389 | *p_pool_type = val; | |
390 | return 0; | |
391 | } | |
392 | ||
393 | static int | |
394 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
395 | enum devlink_sb_pool_type *p_pool_type) | |
396 | { | |
397 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
398 | } | |
399 | ||
400 | static int | |
401 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
402 | enum devlink_sb_threshold_type *p_th_type) | |
403 | { | |
404 | u8 val; | |
405 | ||
406 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
407 | return -EINVAL; | |
408 | ||
409 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
410 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
411 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
412 | return -EINVAL; | |
413 | *p_th_type = val; | |
414 | return 0; | |
415 | } | |
416 | ||
417 | static int | |
418 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
419 | enum devlink_sb_threshold_type *p_th_type) | |
420 | { | |
421 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
422 | } | |
423 | ||
424 | static int | |
425 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
426 | struct nlattr **attrs, | |
427 | enum devlink_sb_pool_type pool_type, | |
428 | u16 *p_tc_index) | |
429 | { | |
430 | u16 val; | |
431 | ||
432 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
433 | return -EINVAL; | |
434 | ||
435 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
436 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
437 | val >= devlink_sb->ingress_tc_count) | |
438 | return -EINVAL; | |
439 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
440 | val >= devlink_sb->egress_tc_count) | |
441 | return -EINVAL; | |
442 | *p_tc_index = val; | |
443 | return 0; | |
444 | } | |
445 | ||
da65e9ff SD |
446 | static void devlink_port_fn_cap_fill(struct nla_bitfield32 *caps, |
447 | u32 cap, bool is_enable) | |
448 | { | |
449 | caps->selector |= cap; | |
450 | if (is_enable) | |
451 | caps->value |= cap; | |
452 | } | |
453 | ||
454 | static int devlink_port_fn_roce_fill(const struct devlink_ops *ops, | |
455 | struct devlink_port *devlink_port, | |
456 | struct nla_bitfield32 *caps, | |
457 | struct netlink_ext_ack *extack) | |
458 | { | |
459 | bool is_enable; | |
460 | int err; | |
461 | ||
462 | if (!ops->port_fn_roce_get) | |
463 | return 0; | |
464 | ||
465 | err = ops->port_fn_roce_get(devlink_port, &is_enable, extack); | |
466 | if (err) { | |
467 | if (err == -EOPNOTSUPP) | |
468 | return 0; | |
469 | return err; | |
470 | } | |
471 | ||
472 | devlink_port_fn_cap_fill(caps, DEVLINK_PORT_FN_CAP_ROCE, is_enable); | |
473 | return 0; | |
474 | } | |
475 | ||
a8ce7b26 SD |
476 | static int devlink_port_fn_migratable_fill(const struct devlink_ops *ops, |
477 | struct devlink_port *devlink_port, | |
478 | struct nla_bitfield32 *caps, | |
479 | struct netlink_ext_ack *extack) | |
480 | { | |
481 | bool is_enable; | |
482 | int err; | |
483 | ||
484 | if (!ops->port_fn_migratable_get || | |
485 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PCI_VF) | |
486 | return 0; | |
487 | ||
488 | err = ops->port_fn_migratable_get(devlink_port, &is_enable, extack); | |
489 | if (err) { | |
490 | if (err == -EOPNOTSUPP) | |
491 | return 0; | |
492 | return err; | |
493 | } | |
494 | ||
495 | devlink_port_fn_cap_fill(caps, DEVLINK_PORT_FN_CAP_MIGRATABLE, is_enable); | |
496 | return 0; | |
497 | } | |
498 | ||
da65e9ff SD |
499 | static int devlink_port_fn_caps_fill(const struct devlink_ops *ops, |
500 | struct devlink_port *devlink_port, | |
501 | struct sk_buff *msg, | |
502 | struct netlink_ext_ack *extack, | |
503 | bool *msg_updated) | |
504 | { | |
505 | struct nla_bitfield32 caps = {}; | |
506 | int err; | |
507 | ||
508 | err = devlink_port_fn_roce_fill(ops, devlink_port, &caps, extack); | |
509 | if (err) | |
510 | return err; | |
511 | ||
a8ce7b26 SD |
512 | err = devlink_port_fn_migratable_fill(ops, devlink_port, &caps, extack); |
513 | if (err) | |
514 | return err; | |
515 | ||
da65e9ff SD |
516 | if (!caps.selector) |
517 | return 0; | |
518 | err = nla_put_bitfield32(msg, DEVLINK_PORT_FN_ATTR_CAPS, caps.value, | |
519 | caps.selector); | |
520 | if (err) | |
521 | return err; | |
522 | ||
523 | *msg_updated = true; | |
524 | return 0; | |
525 | } | |
526 | ||
bf797471 JP |
527 | static int |
528 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
529 | struct genl_info *info, | |
530 | enum devlink_sb_pool_type pool_type, | |
531 | u16 *p_tc_index) | |
532 | { | |
533 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
534 | pool_type, p_tc_index); | |
535 | } | |
536 | ||
b16ebe92 AV |
537 | struct devlink_region { |
538 | struct devlink *devlink; | |
544e7c33 | 539 | struct devlink_port *port; |
b16ebe92 | 540 | struct list_head list; |
544e7c33 AL |
541 | union { |
542 | const struct devlink_region_ops *ops; | |
543 | const struct devlink_port_region_ops *port_ops; | |
544 | }; | |
2dec18ad JP |
545 | struct mutex snapshot_lock; /* protects snapshot_list, |
546 | * max_snapshots and cur_snapshots | |
547 | * consistency. | |
548 | */ | |
b16ebe92 AV |
549 | struct list_head snapshot_list; |
550 | u32 max_snapshots; | |
551 | u32 cur_snapshots; | |
552 | u64 size; | |
553 | }; | |
554 | ||
d7e52722 AV |
555 | struct devlink_snapshot { |
556 | struct list_head list; | |
557 | struct devlink_region *region; | |
d7e52722 AV |
558 | u8 *data; |
559 | u32 id; | |
560 | }; | |
561 | ||
b16ebe92 AV |
562 | static struct devlink_region * |
563 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
564 | { | |
565 | struct devlink_region *region; | |
566 | ||
567 | list_for_each_entry(region, &devlink->region_list, list) | |
e8937681 | 568 | if (!strcmp(region->ops->name, region_name)) |
b16ebe92 AV |
569 | return region; |
570 | ||
571 | return NULL; | |
572 | } | |
573 | ||
544e7c33 AL |
574 | static struct devlink_region * |
575 | devlink_port_region_get_by_name(struct devlink_port *port, | |
576 | const char *region_name) | |
577 | { | |
578 | struct devlink_region *region; | |
579 | ||
580 | list_for_each_entry(region, &port->region_list, list) | |
581 | if (!strcmp(region->ops->name, region_name)) | |
582 | return region; | |
583 | ||
584 | return NULL; | |
585 | } | |
586 | ||
d7e52722 AV |
587 | static struct devlink_snapshot * |
588 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
589 | { | |
590 | struct devlink_snapshot *snapshot; | |
591 | ||
592 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
593 | if (snapshot->id == id) | |
594 | return snapshot; | |
595 | ||
596 | return NULL; | |
597 | } | |
598 | ||
bfcd3a46 JP |
599 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) |
600 | { | |
601 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
602 | return -EMSGSIZE; | |
603 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
604 | return -EMSGSIZE; | |
605 | return 0; | |
606 | } | |
607 | ||
7b2d9a1a JP |
608 | static int devlink_nl_put_nested_handle(struct sk_buff *msg, struct devlink *devlink) |
609 | { | |
610 | struct nlattr *nested_attr; | |
611 | ||
612 | nested_attr = nla_nest_start(msg, DEVLINK_ATTR_NESTED_DEVLINK); | |
613 | if (!nested_attr) | |
614 | return -EMSGSIZE; | |
615 | if (devlink_nl_put_handle(msg, devlink)) | |
616 | goto nla_put_failure; | |
617 | ||
618 | nla_nest_end(msg, nested_attr); | |
619 | return 0; | |
620 | ||
621 | nla_put_failure: | |
622 | nla_nest_cancel(msg, nested_attr); | |
623 | return -EMSGSIZE; | |
624 | } | |
625 | ||
dca56c30 JP |
626 | int devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port) |
627 | { | |
628 | if (devlink_nl_put_handle(msg, devlink_port->devlink)) | |
629 | return -EMSGSIZE; | |
630 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
631 | return -EMSGSIZE; | |
632 | return 0; | |
633 | } | |
634 | ||
635 | size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port) | |
636 | { | |
637 | struct devlink *devlink = devlink_port->devlink; | |
638 | ||
639 | return nla_total_size(strlen(devlink->dev->bus->name) + 1) /* DEVLINK_ATTR_BUS_NAME */ | |
640 | + nla_total_size(strlen(dev_name(devlink->dev)) + 1) /* DEVLINK_ATTR_DEV_NAME */ | |
641 | + nla_total_size(4); /* DEVLINK_ATTR_PORT_INDEX */ | |
642 | } | |
643 | ||
dc64cc7c MS |
644 | struct devlink_reload_combination { |
645 | enum devlink_reload_action action; | |
646 | enum devlink_reload_limit limit; | |
647 | }; | |
648 | ||
649 | static const struct devlink_reload_combination devlink_reload_invalid_combinations[] = { | |
650 | { | |
651 | /* can't reinitialize driver with no down time */ | |
652 | .action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
653 | .limit = DEVLINK_RELOAD_LIMIT_NO_RESET, | |
654 | }, | |
655 | }; | |
656 | ||
657 | static bool | |
658 | devlink_reload_combination_is_invalid(enum devlink_reload_action action, | |
659 | enum devlink_reload_limit limit) | |
660 | { | |
661 | int i; | |
662 | ||
663 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) | |
664 | if (devlink_reload_invalid_combinations[i].action == action && | |
665 | devlink_reload_invalid_combinations[i].limit == limit) | |
666 | return true; | |
667 | return false; | |
668 | } | |
669 | ||
ccdf0721 MS |
670 | static bool |
671 | devlink_reload_action_is_supported(struct devlink *devlink, enum devlink_reload_action action) | |
672 | { | |
673 | return test_bit(action, &devlink->ops->reload_actions); | |
674 | } | |
675 | ||
dc64cc7c MS |
676 | static bool |
677 | devlink_reload_limit_is_supported(struct devlink *devlink, enum devlink_reload_limit limit) | |
678 | { | |
679 | return test_bit(limit, &devlink->ops->reload_limits); | |
680 | } | |
681 | ||
5204bb68 | 682 | static int devlink_reload_stat_put(struct sk_buff *msg, |
a254c264 MS |
683 | enum devlink_reload_limit limit, u32 value) |
684 | { | |
685 | struct nlattr *reload_stats_entry; | |
686 | ||
687 | reload_stats_entry = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS_ENTRY); | |
688 | if (!reload_stats_entry) | |
689 | return -EMSGSIZE; | |
690 | ||
5204bb68 | 691 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_STATS_LIMIT, limit) || |
a254c264 MS |
692 | nla_put_u32(msg, DEVLINK_ATTR_RELOAD_STATS_VALUE, value)) |
693 | goto nla_put_failure; | |
694 | nla_nest_end(msg, reload_stats_entry); | |
695 | return 0; | |
696 | ||
697 | nla_put_failure: | |
698 | nla_nest_cancel(msg, reload_stats_entry); | |
699 | return -EMSGSIZE; | |
700 | } | |
701 | ||
77069ba2 | 702 | static int devlink_reload_stats_put(struct sk_buff *msg, struct devlink *devlink, bool is_remote) |
a254c264 | 703 | { |
5204bb68 | 704 | struct nlattr *reload_stats_attr, *act_info, *act_stats; |
a254c264 MS |
705 | int i, j, stat_idx; |
706 | u32 value; | |
707 | ||
77069ba2 MS |
708 | if (!is_remote) |
709 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS); | |
710 | else | |
711 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_REMOTE_RELOAD_STATS); | |
a254c264 MS |
712 | |
713 | if (!reload_stats_attr) | |
714 | return -EMSGSIZE; | |
715 | ||
5204bb68 MS |
716 | for (i = 0; i <= DEVLINK_RELOAD_ACTION_MAX; i++) { |
717 | if ((!is_remote && | |
718 | !devlink_reload_action_is_supported(devlink, i)) || | |
719 | i == DEVLINK_RELOAD_ACTION_UNSPEC) | |
a254c264 | 720 | continue; |
5204bb68 MS |
721 | act_info = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_INFO); |
722 | if (!act_info) | |
723 | goto nla_put_failure; | |
724 | ||
725 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_ACTION, i)) | |
726 | goto action_info_nest_cancel; | |
727 | act_stats = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_STATS); | |
728 | if (!act_stats) | |
729 | goto action_info_nest_cancel; | |
730 | ||
731 | for (j = 0; j <= DEVLINK_RELOAD_LIMIT_MAX; j++) { | |
732 | /* Remote stats are shown even if not locally supported. | |
733 | * Stats of actions with unspecified limit are shown | |
734 | * though drivers don't need to register unspecified | |
735 | * limit. | |
736 | */ | |
737 | if ((!is_remote && j != DEVLINK_RELOAD_LIMIT_UNSPEC && | |
738 | !devlink_reload_limit_is_supported(devlink, j)) || | |
a254c264 MS |
739 | devlink_reload_combination_is_invalid(i, j)) |
740 | continue; | |
741 | ||
742 | stat_idx = j * __DEVLINK_RELOAD_ACTION_MAX + i; | |
77069ba2 MS |
743 | if (!is_remote) |
744 | value = devlink->stats.reload_stats[stat_idx]; | |
745 | else | |
746 | value = devlink->stats.remote_reload_stats[stat_idx]; | |
5204bb68 MS |
747 | if (devlink_reload_stat_put(msg, j, value)) |
748 | goto action_stats_nest_cancel; | |
a254c264 | 749 | } |
5204bb68 MS |
750 | nla_nest_end(msg, act_stats); |
751 | nla_nest_end(msg, act_info); | |
a254c264 MS |
752 | } |
753 | nla_nest_end(msg, reload_stats_attr); | |
754 | return 0; | |
755 | ||
5204bb68 MS |
756 | action_stats_nest_cancel: |
757 | nla_nest_cancel(msg, act_stats); | |
758 | action_info_nest_cancel: | |
759 | nla_nest_cancel(msg, act_info); | |
a254c264 MS |
760 | nla_put_failure: |
761 | nla_nest_cancel(msg, reload_stats_attr); | |
762 | return -EMSGSIZE; | |
763 | } | |
764 | ||
bfcd3a46 JP |
765 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, |
766 | enum devlink_command cmd, u32 portid, | |
767 | u32 seq, int flags) | |
768 | { | |
a254c264 | 769 | struct nlattr *dev_stats; |
bfcd3a46 JP |
770 | void *hdr; |
771 | ||
772 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
773 | if (!hdr) | |
774 | return -EMSGSIZE; | |
775 | ||
776 | if (devlink_nl_put_handle(msg, devlink)) | |
777 | goto nla_put_failure; | |
2670ac26 JP |
778 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed)) |
779 | goto nla_put_failure; | |
bfcd3a46 | 780 | |
a254c264 MS |
781 | dev_stats = nla_nest_start(msg, DEVLINK_ATTR_DEV_STATS); |
782 | if (!dev_stats) | |
783 | goto nla_put_failure; | |
784 | ||
77069ba2 MS |
785 | if (devlink_reload_stats_put(msg, devlink, false)) |
786 | goto dev_stats_nest_cancel; | |
787 | if (devlink_reload_stats_put(msg, devlink, true)) | |
a254c264 MS |
788 | goto dev_stats_nest_cancel; |
789 | ||
790 | nla_nest_end(msg, dev_stats); | |
bfcd3a46 JP |
791 | genlmsg_end(msg, hdr); |
792 | return 0; | |
793 | ||
a254c264 MS |
794 | dev_stats_nest_cancel: |
795 | nla_nest_cancel(msg, dev_stats); | |
bfcd3a46 JP |
796 | nla_put_failure: |
797 | genlmsg_cancel(msg, hdr); | |
798 | return -EMSGSIZE; | |
799 | } | |
800 | ||
801 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
802 | { | |
803 | struct sk_buff *msg; | |
804 | int err; | |
805 | ||
806 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
cf530217 | 807 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
bfcd3a46 JP |
808 | |
809 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
810 | if (!msg) | |
811 | return; | |
812 | ||
813 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
814 | if (err) { | |
815 | nlmsg_free(msg); | |
816 | return; | |
817 | } | |
818 | ||
819 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
820 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
821 | } | |
822 | ||
b9ffcbaf JP |
823 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
824 | struct devlink_port *devlink_port) | |
825 | { | |
826 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
827 | ||
10a429ba | 828 | if (!devlink_port->attrs_set) |
b9ffcbaf | 829 | return 0; |
a21cf0a8 DR |
830 | if (attrs->lanes) { |
831 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_LANES, attrs->lanes)) | |
832 | return -EMSGSIZE; | |
833 | } | |
a0f49b54 DR |
834 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_SPLITTABLE, attrs->splittable)) |
835 | return -EMSGSIZE; | |
5ec1380a JP |
836 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
837 | return -EMSGSIZE; | |
58b6be41 PP |
838 | switch (devlink_port->attrs.flavour) { |
839 | case DEVLINK_PORT_FLAVOUR_PCI_PF: | |
3a2d9588 PP |
840 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
841 | attrs->pci_pf.controller) || | |
842 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_pf.pf)) | |
98fd2d65 | 843 | return -EMSGSIZE; |
05b595e9 PP |
844 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_pf.external)) |
845 | return -EMSGSIZE; | |
58b6be41 PP |
846 | break; |
847 | case DEVLINK_PORT_FLAVOUR_PCI_VF: | |
3a2d9588 PP |
848 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
849 | attrs->pci_vf.controller) || | |
850 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_vf.pf) || | |
851 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, attrs->pci_vf.vf)) | |
e41b6bf3 | 852 | return -EMSGSIZE; |
05b595e9 PP |
853 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_vf.external)) |
854 | return -EMSGSIZE; | |
58b6be41 | 855 | break; |
b8288837 PP |
856 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
857 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, | |
858 | attrs->pci_sf.controller) || | |
859 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, | |
860 | attrs->pci_sf.pf) || | |
861 | nla_put_u32(msg, DEVLINK_ATTR_PORT_PCI_SF_NUMBER, | |
862 | attrs->pci_sf.sf)) | |
863 | return -EMSGSIZE; | |
864 | break; | |
58b6be41 PP |
865 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: |
866 | case DEVLINK_PORT_FLAVOUR_CPU: | |
867 | case DEVLINK_PORT_FLAVOUR_DSA: | |
868 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, | |
869 | attrs->phys.port_number)) | |
870 | return -EMSGSIZE; | |
871 | if (!attrs->split) | |
872 | return 0; | |
873 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
874 | attrs->phys.port_number)) | |
875 | return -EMSGSIZE; | |
876 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
877 | attrs->phys.split_subport_number)) | |
878 | return -EMSGSIZE; | |
879 | break; | |
880 | default: | |
881 | break; | |
98fd2d65 | 882 | } |
b9ffcbaf JP |
883 | return 0; |
884 | } | |
885 | ||
82564f6c LR |
886 | static int devlink_port_fn_hw_addr_fill(const struct devlink_ops *ops, |
887 | struct devlink_port *port, | |
888 | struct sk_buff *msg, | |
889 | struct netlink_ext_ack *extack, | |
890 | bool *msg_updated) | |
1230d948 PP |
891 | { |
892 | u8 hw_addr[MAX_ADDR_LEN]; | |
893 | int hw_addr_len; | |
894 | int err; | |
895 | ||
896 | if (!ops->port_function_hw_addr_get) | |
897 | return 0; | |
898 | ||
82564f6c LR |
899 | err = ops->port_function_hw_addr_get(port, hw_addr, &hw_addr_len, |
900 | extack); | |
1230d948 PP |
901 | if (err) { |
902 | if (err == -EOPNOTSUPP) | |
903 | return 0; | |
904 | return err; | |
905 | } | |
906 | err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); | |
907 | if (err) | |
908 | return err; | |
909 | *msg_updated = true; | |
910 | return 0; | |
911 | } | |
912 | ||
4677efc4 | 913 | static int devlink_nl_rate_fill(struct sk_buff *msg, |
4677efc4 | 914 | struct devlink_rate *devlink_rate, |
7ca973dc LR |
915 | enum devlink_command cmd, u32 portid, u32 seq, |
916 | int flags, struct netlink_ext_ack *extack) | |
4677efc4 | 917 | { |
7ca973dc | 918 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
919 | void *hdr; |
920 | ||
921 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
922 | if (!hdr) | |
923 | return -EMSGSIZE; | |
924 | ||
925 | if (devlink_nl_put_handle(msg, devlink)) | |
926 | goto nla_put_failure; | |
927 | ||
928 | if (nla_put_u16(msg, DEVLINK_ATTR_RATE_TYPE, devlink_rate->type)) | |
929 | goto nla_put_failure; | |
930 | ||
931 | if (devlink_rate_is_leaf(devlink_rate)) { | |
932 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
933 | devlink_rate->devlink_port->index)) | |
934 | goto nla_put_failure; | |
a8ecb93e DL |
935 | } else if (devlink_rate_is_node(devlink_rate)) { |
936 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_NODE_NAME, | |
937 | devlink_rate->name)) | |
938 | goto nla_put_failure; | |
4677efc4 DL |
939 | } |
940 | ||
1897db2e DL |
941 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_SHARE, |
942 | devlink_rate->tx_share, DEVLINK_ATTR_PAD)) | |
943 | goto nla_put_failure; | |
944 | ||
945 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_MAX, | |
946 | devlink_rate->tx_max, DEVLINK_ATTR_PAD)) | |
947 | goto nla_put_failure; | |
948 | ||
cd502236 MW |
949 | if (nla_put_u32(msg, DEVLINK_ATTR_RATE_TX_PRIORITY, |
950 | devlink_rate->tx_priority)) | |
951 | goto nla_put_failure; | |
6e2d7e84 MW |
952 | |
953 | if (nla_put_u32(msg, DEVLINK_ATTR_RATE_TX_WEIGHT, | |
954 | devlink_rate->tx_weight)) | |
955 | goto nla_put_failure; | |
956 | ||
d7555984 DL |
957 | if (devlink_rate->parent) |
958 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_PARENT_NODE_NAME, | |
959 | devlink_rate->parent->name)) | |
960 | goto nla_put_failure; | |
961 | ||
4677efc4 DL |
962 | genlmsg_end(msg, hdr); |
963 | return 0; | |
964 | ||
965 | nla_put_failure: | |
966 | genlmsg_cancel(msg, hdr); | |
967 | return -EMSGSIZE; | |
968 | } | |
969 | ||
a556dded PP |
970 | static bool |
971 | devlink_port_fn_state_valid(enum devlink_port_fn_state state) | |
972 | { | |
973 | return state == DEVLINK_PORT_FN_STATE_INACTIVE || | |
974 | state == DEVLINK_PORT_FN_STATE_ACTIVE; | |
975 | } | |
976 | ||
977 | static bool | |
978 | devlink_port_fn_opstate_valid(enum devlink_port_fn_opstate opstate) | |
979 | { | |
980 | return opstate == DEVLINK_PORT_FN_OPSTATE_DETACHED || | |
981 | opstate == DEVLINK_PORT_FN_OPSTATE_ATTACHED; | |
982 | } | |
983 | ||
82564f6c LR |
984 | static int devlink_port_fn_state_fill(const struct devlink_ops *ops, |
985 | struct devlink_port *port, | |
986 | struct sk_buff *msg, | |
987 | struct netlink_ext_ack *extack, | |
988 | bool *msg_updated) | |
a556dded PP |
989 | { |
990 | enum devlink_port_fn_opstate opstate; | |
991 | enum devlink_port_fn_state state; | |
992 | int err; | |
993 | ||
994 | if (!ops->port_fn_state_get) | |
995 | return 0; | |
996 | ||
82564f6c | 997 | err = ops->port_fn_state_get(port, &state, &opstate, extack); |
a556dded PP |
998 | if (err) { |
999 | if (err == -EOPNOTSUPP) | |
1000 | return 0; | |
1001 | return err; | |
1002 | } | |
1003 | if (!devlink_port_fn_state_valid(state)) { | |
1004 | WARN_ON_ONCE(1); | |
1005 | NL_SET_ERR_MSG_MOD(extack, "Invalid state read from driver"); | |
1006 | return -EINVAL; | |
1007 | } | |
1008 | if (!devlink_port_fn_opstate_valid(opstate)) { | |
1009 | WARN_ON_ONCE(1); | |
1010 | NL_SET_ERR_MSG_MOD(extack, | |
1011 | "Invalid operational state read from driver"); | |
1012 | return -EINVAL; | |
1013 | } | |
1014 | if (nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_STATE, state) || | |
1015 | nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_OPSTATE, opstate)) | |
1016 | return -EMSGSIZE; | |
1017 | *msg_updated = true; | |
1018 | return 0; | |
1019 | } | |
1020 | ||
a8ce7b26 SD |
1021 | static int |
1022 | devlink_port_fn_mig_set(struct devlink_port *devlink_port, bool enable, | |
1023 | struct netlink_ext_ack *extack) | |
1024 | { | |
1025 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1026 | ||
1027 | return ops->port_fn_migratable_set(devlink_port, enable, extack); | |
1028 | } | |
1029 | ||
da65e9ff SD |
1030 | static int |
1031 | devlink_port_fn_roce_set(struct devlink_port *devlink_port, bool enable, | |
1032 | struct netlink_ext_ack *extack) | |
1033 | { | |
1034 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1035 | ||
1036 | return ops->port_fn_roce_set(devlink_port, enable, extack); | |
1037 | } | |
1038 | ||
1039 | static int devlink_port_fn_caps_set(struct devlink_port *devlink_port, | |
1040 | const struct nlattr *attr, | |
1041 | struct netlink_ext_ack *extack) | |
1042 | { | |
1043 | struct nla_bitfield32 caps; | |
1044 | u32 caps_value; | |
1045 | int err; | |
1046 | ||
1047 | caps = nla_get_bitfield32(attr); | |
1048 | caps_value = caps.value & caps.selector; | |
1049 | if (caps.selector & DEVLINK_PORT_FN_CAP_ROCE) { | |
1050 | err = devlink_port_fn_roce_set(devlink_port, | |
1051 | caps_value & DEVLINK_PORT_FN_CAP_ROCE, | |
1052 | extack); | |
1053 | if (err) | |
1054 | return err; | |
1055 | } | |
a8ce7b26 SD |
1056 | if (caps.selector & DEVLINK_PORT_FN_CAP_MIGRATABLE) { |
1057 | err = devlink_port_fn_mig_set(devlink_port, caps_value & | |
1058 | DEVLINK_PORT_FN_CAP_MIGRATABLE, | |
1059 | extack); | |
1060 | if (err) | |
1061 | return err; | |
1062 | } | |
da65e9ff SD |
1063 | return 0; |
1064 | } | |
1065 | ||
2a916ecc PP |
1066 | static int |
1067 | devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port, | |
1068 | struct netlink_ext_ack *extack) | |
1069 | { | |
2a916ecc PP |
1070 | const struct devlink_ops *ops; |
1071 | struct nlattr *function_attr; | |
1230d948 PP |
1072 | bool msg_updated = false; |
1073 | int err; | |
2a916ecc PP |
1074 | |
1075 | function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION); | |
1076 | if (!function_attr) | |
1077 | return -EMSGSIZE; | |
1078 | ||
82564f6c LR |
1079 | ops = port->devlink->ops; |
1080 | err = devlink_port_fn_hw_addr_fill(ops, port, msg, extack, | |
1081 | &msg_updated); | |
a556dded PP |
1082 | if (err) |
1083 | goto out; | |
da65e9ff SD |
1084 | err = devlink_port_fn_caps_fill(ops, port, msg, extack, |
1085 | &msg_updated); | |
1086 | if (err) | |
1087 | goto out; | |
82564f6c | 1088 | err = devlink_port_fn_state_fill(ops, port, msg, extack, &msg_updated); |
2a916ecc | 1089 | out: |
1230d948 | 1090 | if (err || !msg_updated) |
2a916ecc PP |
1091 | nla_nest_cancel(msg, function_attr); |
1092 | else | |
1093 | nla_nest_end(msg, function_attr); | |
1094 | return err; | |
1095 | } | |
1096 | ||
7ca973dc | 1097 | static int devlink_nl_port_fill(struct sk_buff *msg, |
bfcd3a46 | 1098 | struct devlink_port *devlink_port, |
7ca973dc | 1099 | enum devlink_command cmd, u32 portid, u32 seq, |
31265c1e | 1100 | int flags, struct netlink_ext_ack *extack) |
bfcd3a46 | 1101 | { |
7ca973dc | 1102 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1103 | void *hdr; |
1104 | ||
1105 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1106 | if (!hdr) | |
1107 | return -EMSGSIZE; | |
1108 | ||
1109 | if (devlink_nl_put_handle(msg, devlink)) | |
1110 | goto nla_put_failure; | |
1111 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1112 | goto nla_put_failure; | |
b8f97554 | 1113 | |
0f420b6c | 1114 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 1115 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
b8f97554 | 1116 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1117 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
1118 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
1119 | devlink_port->desired_type)) | |
b8f97554 | 1120 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1121 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
31265c1e | 1122 | if (devlink_port->type_eth.netdev && |
bfcd3a46 | 1123 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, |
31265c1e | 1124 | devlink_port->type_eth.ifindex) || |
bfcd3a46 | 1125 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, |
31265c1e | 1126 | devlink_port->type_eth.ifname))) |
b8f97554 | 1127 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1128 | } |
1129 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
3830c571 | 1130 | struct ib_device *ibdev = devlink_port->type_ib.ibdev; |
bfcd3a46 JP |
1131 | |
1132 | if (ibdev && | |
1133 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
1134 | ibdev->name)) | |
b8f97554 | 1135 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1136 | } |
0f420b6c | 1137 | spin_unlock_bh(&devlink_port->type_lock); |
b9ffcbaf | 1138 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 | 1139 | goto nla_put_failure; |
2a916ecc PP |
1140 | if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack)) |
1141 | goto nla_put_failure; | |
b8375859 JP |
1142 | if (devlink_port->linecard && |
1143 | nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, | |
1144 | devlink_port->linecard->index)) | |
1145 | goto nla_put_failure; | |
bfcd3a46 JP |
1146 | |
1147 | genlmsg_end(msg, hdr); | |
1148 | return 0; | |
1149 | ||
b8f97554 | 1150 | nla_put_failure_type_locked: |
0f420b6c | 1151 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
1152 | nla_put_failure: |
1153 | genlmsg_cancel(msg, hdr); | |
1154 | return -EMSGSIZE; | |
1155 | } | |
1156 | ||
31265c1e JP |
1157 | static void devlink_port_notify(struct devlink_port *devlink_port, |
1158 | enum devlink_command cmd) | |
bfcd3a46 | 1159 | { |
cf530217 | 1160 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1161 | struct sk_buff *msg; |
1162 | int err; | |
1163 | ||
bfcd3a46 JP |
1164 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); |
1165 | ||
cf530217 LR |
1166 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
1167 | return; | |
1168 | ||
bfcd3a46 JP |
1169 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1170 | if (!msg) | |
1171 | return; | |
1172 | ||
31265c1e | 1173 | err = devlink_nl_port_fill(msg, devlink_port, cmd, 0, 0, 0, NULL); |
bfcd3a46 JP |
1174 | if (err) { |
1175 | nlmsg_free(msg); | |
1176 | return; | |
1177 | } | |
1178 | ||
cf530217 LR |
1179 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1180 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
bfcd3a46 JP |
1181 | } |
1182 | ||
4677efc4 DL |
1183 | static void devlink_rate_notify(struct devlink_rate *devlink_rate, |
1184 | enum devlink_command cmd) | |
1185 | { | |
cf530217 | 1186 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1187 | struct sk_buff *msg; |
1188 | int err; | |
1189 | ||
7ca973dc | 1190 | WARN_ON(cmd != DEVLINK_CMD_RATE_NEW && cmd != DEVLINK_CMD_RATE_DEL); |
ef91abfb LR |
1191 | |
1192 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
1193 | return; | |
4677efc4 DL |
1194 | |
1195 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1196 | if (!msg) | |
1197 | return; | |
1198 | ||
7ca973dc | 1199 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, 0, 0, 0, NULL); |
4677efc4 DL |
1200 | if (err) { |
1201 | nlmsg_free(msg); | |
1202 | return; | |
1203 | } | |
1204 | ||
cf530217 LR |
1205 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1206 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4677efc4 DL |
1207 | } |
1208 | ||
07f3af66 JK |
1209 | static int |
1210 | devlink_nl_cmd_rate_get_dump_one(struct sk_buff *msg, struct devlink *devlink, | |
1211 | struct netlink_callback *cb) | |
4677efc4 | 1212 | { |
3015f822 | 1213 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
07f3af66 JK |
1214 | struct devlink_rate *devlink_rate; |
1215 | int idx = 0; | |
4677efc4 DL |
1216 | int err = 0; |
1217 | ||
07f3af66 JK |
1218 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
1219 | enum devlink_command cmd = DEVLINK_CMD_RATE_NEW; | |
1220 | u32 id = NETLINK_CB(cb->skb).portid; | |
4677efc4 | 1221 | |
07f3af66 | 1222 | if (idx < state->idx) { |
4677efc4 | 1223 | idx++; |
07f3af66 | 1224 | continue; |
4677efc4 | 1225 | } |
07f3af66 JK |
1226 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, id, |
1227 | cb->nlh->nlmsg_seq, | |
1228 | NLM_F_MULTI, NULL); | |
1229 | if (err) { | |
1230 | state->idx = idx; | |
1231 | break; | |
1232 | } | |
1233 | idx++; | |
4677efc4 | 1234 | } |
4677efc4 | 1235 | |
07f3af66 | 1236 | return err; |
4677efc4 DL |
1237 | } |
1238 | ||
07f3af66 JK |
1239 | const struct devlink_gen_cmd devl_gen_rate_get = { |
1240 | .dump_one = devlink_nl_cmd_rate_get_dump_one, | |
1241 | }; | |
1242 | ||
4677efc4 DL |
1243 | static int devlink_nl_cmd_rate_get_doit(struct sk_buff *skb, |
1244 | struct genl_info *info) | |
1245 | { | |
1246 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
4677efc4 DL |
1247 | struct sk_buff *msg; |
1248 | int err; | |
1249 | ||
1250 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1251 | if (!msg) | |
1252 | return -ENOMEM; | |
1253 | ||
7ca973dc | 1254 | err = devlink_nl_rate_fill(msg, devlink_rate, DEVLINK_CMD_RATE_NEW, |
4677efc4 DL |
1255 | info->snd_portid, info->snd_seq, 0, |
1256 | info->extack); | |
1257 | if (err) { | |
1258 | nlmsg_free(msg); | |
1259 | return err; | |
1260 | } | |
1261 | ||
1262 | return genlmsg_reply(msg, info); | |
1263 | } | |
1264 | ||
d7555984 DL |
1265 | static bool |
1266 | devlink_rate_is_parent_node(struct devlink_rate *devlink_rate, | |
1267 | struct devlink_rate *parent) | |
1268 | { | |
1269 | while (parent) { | |
1270 | if (parent == devlink_rate) | |
1271 | return true; | |
1272 | parent = parent->parent; | |
1273 | } | |
1274 | return false; | |
1275 | } | |
1276 | ||
bfcd3a46 JP |
1277 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) |
1278 | { | |
1279 | struct devlink *devlink = info->user_ptr[0]; | |
1280 | struct sk_buff *msg; | |
1281 | int err; | |
1282 | ||
1283 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1284 | if (!msg) | |
1285 | return -ENOMEM; | |
1286 | ||
1287 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
1288 | info->snd_portid, info->snd_seq, 0); | |
1289 | if (err) { | |
1290 | nlmsg_free(msg); | |
1291 | return err; | |
1292 | } | |
1293 | ||
1294 | return genlmsg_reply(msg, info); | |
1295 | } | |
1296 | ||
5ce76d78 JK |
1297 | static int |
1298 | devlink_nl_cmd_get_dump_one(struct sk_buff *msg, struct devlink *devlink, | |
1299 | struct netlink_callback *cb) | |
bfcd3a46 | 1300 | { |
5ce76d78 JK |
1301 | return devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, |
1302 | NETLINK_CB(cb->skb).portid, | |
1303 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
bfcd3a46 JP |
1304 | } |
1305 | ||
5ce76d78 JK |
1306 | const struct devlink_gen_cmd devl_gen_inst = { |
1307 | .dump_one = devlink_nl_cmd_get_dump_one, | |
1308 | }; | |
1309 | ||
bfcd3a46 JP |
1310 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, |
1311 | struct genl_info *info) | |
1312 | { | |
637989b5 | 1313 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1314 | struct sk_buff *msg; |
1315 | int err; | |
1316 | ||
1317 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1318 | if (!msg) | |
1319 | return -ENOMEM; | |
1320 | ||
7ca973dc | 1321 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_PORT_NEW, |
a829eb0d | 1322 | info->snd_portid, info->snd_seq, 0, |
31265c1e | 1323 | info->extack); |
bfcd3a46 JP |
1324 | if (err) { |
1325 | nlmsg_free(msg); | |
1326 | return err; | |
1327 | } | |
1328 | ||
1329 | return genlmsg_reply(msg, info); | |
1330 | } | |
1331 | ||
5ce76d78 JK |
1332 | static int |
1333 | devlink_nl_cmd_port_get_dump_one(struct sk_buff *msg, struct devlink *devlink, | |
1334 | struct netlink_callback *cb) | |
bfcd3a46 | 1335 | { |
3015f822 | 1336 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 JK |
1337 | struct devlink_port *devlink_port; |
1338 | unsigned long port_index; | |
1339 | int idx = 0; | |
1340 | int err = 0; | |
a8f94707 | 1341 | |
5ce76d78 JK |
1342 | xa_for_each(&devlink->ports, port_index, devlink_port) { |
1343 | if (idx < state->idx) { | |
bfcd3a46 | 1344 | idx++; |
5ce76d78 | 1345 | continue; |
bfcd3a46 | 1346 | } |
5ce76d78 JK |
1347 | err = devlink_nl_port_fill(msg, devlink_port, |
1348 | DEVLINK_CMD_NEW, | |
1349 | NETLINK_CB(cb->skb).portid, | |
1350 | cb->nlh->nlmsg_seq, | |
1351 | NLM_F_MULTI, cb->extack); | |
1352 | if (err) { | |
1353 | state->idx = idx; | |
1354 | break; | |
1355 | } | |
1356 | idx++; | |
bfcd3a46 | 1357 | } |
5ce76d78 JK |
1358 | |
1359 | return err; | |
bfcd3a46 JP |
1360 | } |
1361 | ||
5ce76d78 JK |
1362 | const struct devlink_gen_cmd devl_gen_port = { |
1363 | .dump_one = devlink_nl_cmd_port_get_dump_one, | |
1364 | }; | |
1365 | ||
82564f6c | 1366 | static int devlink_port_type_set(struct devlink_port *devlink_port, |
bfcd3a46 JP |
1367 | enum devlink_port_type port_type) |
1368 | ||
1369 | { | |
1370 | int err; | |
1371 | ||
2a2b6e36 | 1372 | if (!devlink_port->devlink->ops->port_type_set) |
82564f6c LR |
1373 | return -EOPNOTSUPP; |
1374 | ||
1375 | if (port_type == devlink_port->type) | |
bfcd3a46 | 1376 | return 0; |
82564f6c LR |
1377 | |
1378 | err = devlink_port->devlink->ops->port_type_set(devlink_port, | |
1379 | port_type); | |
1380 | if (err) | |
1381 | return err; | |
1382 | ||
1383 | devlink_port->desired_type = port_type; | |
1384 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
1385 | return 0; | |
bfcd3a46 JP |
1386 | } |
1387 | ||
82564f6c LR |
1388 | static int devlink_port_function_hw_addr_set(struct devlink_port *port, |
1389 | const struct nlattr *attr, | |
1390 | struct netlink_ext_ack *extack) | |
a1e8ae90 | 1391 | { |
82564f6c | 1392 | const struct devlink_ops *ops = port->devlink->ops; |
a1e8ae90 PP |
1393 | const u8 *hw_addr; |
1394 | int hw_addr_len; | |
a1e8ae90 PP |
1395 | |
1396 | hw_addr = nla_data(attr); | |
1397 | hw_addr_len = nla_len(attr); | |
1398 | if (hw_addr_len > MAX_ADDR_LEN) { | |
1399 | NL_SET_ERR_MSG_MOD(extack, "Port function hardware address too long"); | |
1400 | return -EINVAL; | |
1401 | } | |
1402 | if (port->type == DEVLINK_PORT_TYPE_ETH) { | |
1403 | if (hw_addr_len != ETH_ALEN) { | |
1404 | NL_SET_ERR_MSG_MOD(extack, "Address must be 6 bytes for Ethernet device"); | |
1405 | return -EINVAL; | |
1406 | } | |
1407 | if (!is_unicast_ether_addr(hw_addr)) { | |
1408 | NL_SET_ERR_MSG_MOD(extack, "Non-unicast hardware address unsupported"); | |
1409 | return -EINVAL; | |
1410 | } | |
1411 | } | |
1412 | ||
82564f6c LR |
1413 | return ops->port_function_hw_addr_set(port, hw_addr, hw_addr_len, |
1414 | extack); | |
a1e8ae90 | 1415 | } |
a1e8ae90 | 1416 | |
82564f6c | 1417 | static int devlink_port_fn_state_set(struct devlink_port *port, |
a556dded PP |
1418 | const struct nlattr *attr, |
1419 | struct netlink_ext_ack *extack) | |
1420 | { | |
1421 | enum devlink_port_fn_state state; | |
1422 | const struct devlink_ops *ops; | |
1423 | ||
1424 | state = nla_get_u8(attr); | |
82564f6c | 1425 | ops = port->devlink->ops; |
c0bea69d SD |
1426 | return ops->port_fn_state_set(port, state, extack); |
1427 | } | |
1428 | ||
1429 | static int devlink_port_function_validate(struct devlink_port *devlink_port, | |
1430 | struct nlattr **tb, | |
1431 | struct netlink_ext_ack *extack) | |
1432 | { | |
1433 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
da65e9ff | 1434 | struct nlattr *attr; |
c0bea69d SD |
1435 | |
1436 | if (tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] && | |
1437 | !ops->port_function_hw_addr_set) { | |
1438 | NL_SET_ERR_MSG_ATTR(extack, tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR], | |
1439 | "Port doesn't support function attributes"); | |
a556dded PP |
1440 | return -EOPNOTSUPP; |
1441 | } | |
c0bea69d SD |
1442 | if (tb[DEVLINK_PORT_FN_ATTR_STATE] && !ops->port_fn_state_set) { |
1443 | NL_SET_ERR_MSG_ATTR(extack, tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR], | |
1444 | "Function does not support state setting"); | |
1445 | return -EOPNOTSUPP; | |
1446 | } | |
da65e9ff SD |
1447 | attr = tb[DEVLINK_PORT_FN_ATTR_CAPS]; |
1448 | if (attr) { | |
1449 | struct nla_bitfield32 caps; | |
1450 | ||
1451 | caps = nla_get_bitfield32(attr); | |
1452 | if (caps.selector & DEVLINK_PORT_FN_CAP_ROCE && | |
1453 | !ops->port_fn_roce_set) { | |
1454 | NL_SET_ERR_MSG_ATTR(extack, attr, | |
1455 | "Port doesn't support RoCE function attribute"); | |
1456 | return -EOPNOTSUPP; | |
1457 | } | |
a8ce7b26 SD |
1458 | if (caps.selector & DEVLINK_PORT_FN_CAP_MIGRATABLE) { |
1459 | if (!ops->port_fn_migratable_set) { | |
1460 | NL_SET_ERR_MSG_ATTR(extack, attr, | |
1461 | "Port doesn't support migratable function attribute"); | |
1462 | return -EOPNOTSUPP; | |
1463 | } | |
1464 | if (devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_PCI_VF) { | |
1465 | NL_SET_ERR_MSG_ATTR(extack, attr, | |
1466 | "migratable function attribute supported for VFs only"); | |
1467 | return -EOPNOTSUPP; | |
1468 | } | |
1469 | } | |
da65e9ff | 1470 | } |
c0bea69d | 1471 | return 0; |
a1e8ae90 PP |
1472 | } |
1473 | ||
82564f6c LR |
1474 | static int devlink_port_function_set(struct devlink_port *port, |
1475 | const struct nlattr *attr, | |
1476 | struct netlink_ext_ack *extack) | |
a1e8ae90 PP |
1477 | { |
1478 | struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1]; | |
1479 | int err; | |
1480 | ||
1481 | err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr, | |
1482 | devlink_function_nl_policy, extack); | |
1483 | if (err < 0) { | |
1484 | NL_SET_ERR_MSG_MOD(extack, "Fail to parse port function attributes"); | |
1485 | return err; | |
1486 | } | |
1487 | ||
c0bea69d SD |
1488 | err = devlink_port_function_validate(port, tb, extack); |
1489 | if (err) | |
1490 | return err; | |
1491 | ||
a1e8ae90 | 1492 | attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR]; |
a556dded | 1493 | if (attr) { |
82564f6c | 1494 | err = devlink_port_function_hw_addr_set(port, attr, extack); |
a556dded PP |
1495 | if (err) |
1496 | return err; | |
1497 | } | |
da65e9ff SD |
1498 | |
1499 | attr = tb[DEVLINK_PORT_FN_ATTR_CAPS]; | |
1500 | if (attr) { | |
1501 | err = devlink_port_fn_caps_set(port, attr, extack); | |
1502 | if (err) | |
1503 | return err; | |
1504 | } | |
1505 | ||
a556dded PP |
1506 | /* Keep this as the last function attribute set, so that when |
1507 | * multiple port function attributes are set along with state, | |
1508 | * Those can be applied first before activating the state. | |
1509 | */ | |
1510 | attr = tb[DEVLINK_PORT_FN_ATTR_STATE]; | |
1511 | if (attr) | |
82564f6c | 1512 | err = devlink_port_fn_state_set(port, attr, extack); |
a1e8ae90 | 1513 | |
1230d948 PP |
1514 | if (!err) |
1515 | devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); | |
a1e8ae90 PP |
1516 | return err; |
1517 | } | |
1518 | ||
bfcd3a46 JP |
1519 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, |
1520 | struct genl_info *info) | |
1521 | { | |
637989b5 | 1522 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1523 | int err; |
1524 | ||
1525 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
1526 | enum devlink_port_type port_type; | |
1527 | ||
1528 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
82564f6c | 1529 | err = devlink_port_type_set(devlink_port, port_type); |
bfcd3a46 JP |
1530 | if (err) |
1531 | return err; | |
1532 | } | |
a1e8ae90 PP |
1533 | |
1534 | if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) { | |
1535 | struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION]; | |
1536 | struct netlink_ext_ack *extack = info->extack; | |
1537 | ||
82564f6c | 1538 | err = devlink_port_function_set(devlink_port, attr, extack); |
a1e8ae90 PP |
1539 | if (err) |
1540 | return err; | |
1541 | } | |
1542 | ||
bfcd3a46 JP |
1543 | return 0; |
1544 | } | |
1545 | ||
bfcd3a46 JP |
1546 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, |
1547 | struct genl_info *info) | |
1548 | { | |
706217c1 | 1549 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1550 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 JP |
1551 | u32 count; |
1552 | ||
1f7633b5 | 1553 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PORT_SPLIT_COUNT)) |
bfcd3a46 | 1554 | return -EINVAL; |
706217c1 JK |
1555 | if (!devlink->ops->port_split) |
1556 | return -EOPNOTSUPP; | |
bfcd3a46 | 1557 | |
bfcd3a46 | 1558 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); |
82901ad1 | 1559 | |
82901ad1 DR |
1560 | if (!devlink_port->attrs.splittable) { |
1561 | /* Split ports cannot be split. */ | |
1562 | if (devlink_port->attrs.split) | |
1563 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split further"); | |
1564 | else | |
1565 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split"); | |
1566 | return -EINVAL; | |
1567 | } | |
1568 | ||
1569 | if (count < 2 || !is_power_of_2(count) || count > devlink_port->attrs.lanes) { | |
1570 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid split count"); | |
1571 | return -EINVAL; | |
1572 | } | |
1573 | ||
706217c1 JK |
1574 | return devlink->ops->port_split(devlink, devlink_port, count, |
1575 | info->extack); | |
bfcd3a46 JP |
1576 | } |
1577 | ||
1578 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
1579 | struct genl_info *info) | |
1580 | { | |
706217c1 | 1581 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1582 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 | 1583 | |
706217c1 JK |
1584 | if (!devlink->ops->port_unsplit) |
1585 | return -EOPNOTSUPP; | |
1586 | return devlink->ops->port_unsplit(devlink, devlink_port, info->extack); | |
bfcd3a46 JP |
1587 | } |
1588 | ||
ced92571 JP |
1589 | static int devlink_port_new_notify(struct devlink *devlink, |
1590 | unsigned int port_index, | |
1591 | struct genl_info *info) | |
cd76dcd6 PP |
1592 | { |
1593 | struct devlink_port *devlink_port; | |
1594 | struct sk_buff *msg; | |
1595 | int err; | |
1596 | ||
1597 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1598 | if (!msg) | |
1599 | return -ENOMEM; | |
1600 | ||
f0680ef0 | 1601 | lockdep_assert_held(&devlink->lock); |
cd76dcd6 PP |
1602 | devlink_port = devlink_port_get_by_index(devlink, port_index); |
1603 | if (!devlink_port) { | |
1604 | err = -ENODEV; | |
1605 | goto out; | |
1606 | } | |
1607 | ||
7ca973dc | 1608 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_NEW, |
31265c1e | 1609 | info->snd_portid, info->snd_seq, 0, NULL); |
cd76dcd6 PP |
1610 | if (err) |
1611 | goto out; | |
1612 | ||
a44c4511 | 1613 | return genlmsg_reply(msg, info); |
cd76dcd6 PP |
1614 | |
1615 | out: | |
cd76dcd6 PP |
1616 | nlmsg_free(msg); |
1617 | return err; | |
1618 | } | |
1619 | ||
1620 | static int devlink_nl_cmd_port_new_doit(struct sk_buff *skb, | |
1621 | struct genl_info *info) | |
1622 | { | |
1623 | struct netlink_ext_ack *extack = info->extack; | |
1624 | struct devlink_port_new_attrs new_attrs = {}; | |
1625 | struct devlink *devlink = info->user_ptr[0]; | |
1626 | unsigned int new_port_index; | |
1627 | int err; | |
1628 | ||
1629 | if (!devlink->ops->port_new || !devlink->ops->port_del) | |
1630 | return -EOPNOTSUPP; | |
1631 | ||
1632 | if (!info->attrs[DEVLINK_ATTR_PORT_FLAVOUR] || | |
1633 | !info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]) { | |
1634 | NL_SET_ERR_MSG_MOD(extack, "Port flavour or PCI PF are not specified"); | |
1635 | return -EINVAL; | |
1636 | } | |
1637 | new_attrs.flavour = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_FLAVOUR]); | |
1638 | new_attrs.pfnum = | |
1639 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]); | |
1640 | ||
1641 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1642 | /* Port index of the new port being created by driver. */ | |
1643 | new_attrs.port_index = | |
1644 | nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1645 | new_attrs.port_index_valid = true; | |
1646 | } | |
1647 | if (info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]) { | |
1648 | new_attrs.controller = | |
1649 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]); | |
1650 | new_attrs.controller_valid = true; | |
1651 | } | |
1652 | if (new_attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_SF && | |
1653 | info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]) { | |
1654 | new_attrs.sfnum = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]); | |
1655 | new_attrs.sfnum_valid = true; | |
1656 | } | |
1657 | ||
1658 | err = devlink->ops->port_new(devlink, &new_attrs, extack, | |
1659 | &new_port_index); | |
1660 | if (err) | |
1661 | return err; | |
1662 | ||
ced92571 | 1663 | err = devlink_port_new_notify(devlink, new_port_index, info); |
cd76dcd6 PP |
1664 | if (err && err != -ENODEV) { |
1665 | /* Fail to send the response; destroy newly created port. */ | |
1666 | devlink->ops->port_del(devlink, new_port_index, extack); | |
1667 | } | |
1668 | return err; | |
1669 | } | |
1670 | ||
1671 | static int devlink_nl_cmd_port_del_doit(struct sk_buff *skb, | |
1672 | struct genl_info *info) | |
1673 | { | |
1674 | struct netlink_ext_ack *extack = info->extack; | |
1675 | struct devlink *devlink = info->user_ptr[0]; | |
1676 | unsigned int port_index; | |
1677 | ||
1678 | if (!devlink->ops->port_del) | |
1679 | return -EOPNOTSUPP; | |
1680 | ||
1f7633b5 | 1681 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PORT_INDEX)) { |
cd76dcd6 PP |
1682 | NL_SET_ERR_MSG_MOD(extack, "Port index is not specified"); |
1683 | return -EINVAL; | |
1684 | } | |
1685 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1686 | ||
1687 | return devlink->ops->port_del(devlink, port_index, extack); | |
1688 | } | |
1689 | ||
d7555984 DL |
1690 | static int |
1691 | devlink_nl_rate_parent_node_set(struct devlink_rate *devlink_rate, | |
1692 | struct genl_info *info, | |
1693 | struct nlattr *nla_parent) | |
1694 | { | |
1695 | struct devlink *devlink = devlink_rate->devlink; | |
1696 | const char *parent_name = nla_data(nla_parent); | |
1697 | const struct devlink_ops *ops = devlink->ops; | |
1698 | size_t len = strlen(parent_name); | |
1699 | struct devlink_rate *parent; | |
1700 | int err = -EOPNOTSUPP; | |
1701 | ||
1702 | parent = devlink_rate->parent; | |
04d674f0 MW |
1703 | |
1704 | if (parent && !len) { | |
d7555984 DL |
1705 | if (devlink_rate_is_leaf(devlink_rate)) |
1706 | err = ops->rate_leaf_parent_set(devlink_rate, NULL, | |
1707 | devlink_rate->priv, NULL, | |
1708 | info->extack); | |
1709 | else if (devlink_rate_is_node(devlink_rate)) | |
1710 | err = ops->rate_node_parent_set(devlink_rate, NULL, | |
1711 | devlink_rate->priv, NULL, | |
1712 | info->extack); | |
1713 | if (err) | |
1714 | return err; | |
1715 | ||
1716 | refcount_dec(&parent->refcnt); | |
1717 | devlink_rate->parent = NULL; | |
04d674f0 | 1718 | } else if (len) { |
d7555984 DL |
1719 | parent = devlink_rate_node_get_by_name(devlink, parent_name); |
1720 | if (IS_ERR(parent)) | |
1721 | return -ENODEV; | |
1722 | ||
1723 | if (parent == devlink_rate) { | |
1724 | NL_SET_ERR_MSG_MOD(info->extack, "Parent to self is not allowed"); | |
1725 | return -EINVAL; | |
1726 | } | |
1727 | ||
1728 | if (devlink_rate_is_node(devlink_rate) && | |
1729 | devlink_rate_is_parent_node(devlink_rate, parent->parent)) { | |
1730 | NL_SET_ERR_MSG_MOD(info->extack, "Node is already a parent of parent node."); | |
1731 | return -EEXIST; | |
1732 | } | |
1733 | ||
1734 | if (devlink_rate_is_leaf(devlink_rate)) | |
1735 | err = ops->rate_leaf_parent_set(devlink_rate, parent, | |
1736 | devlink_rate->priv, parent->priv, | |
1737 | info->extack); | |
1738 | else if (devlink_rate_is_node(devlink_rate)) | |
1739 | err = ops->rate_node_parent_set(devlink_rate, parent, | |
1740 | devlink_rate->priv, parent->priv, | |
1741 | info->extack); | |
1742 | if (err) | |
1743 | return err; | |
1744 | ||
04d674f0 MW |
1745 | if (devlink_rate->parent) |
1746 | /* we're reassigning to other parent in this case */ | |
1747 | refcount_dec(&devlink_rate->parent->refcnt); | |
1748 | ||
d7555984 DL |
1749 | refcount_inc(&parent->refcnt); |
1750 | devlink_rate->parent = parent; | |
1751 | } | |
1752 | ||
1753 | return 0; | |
1754 | } | |
1755 | ||
1897db2e DL |
1756 | static int devlink_nl_rate_set(struct devlink_rate *devlink_rate, |
1757 | const struct devlink_ops *ops, | |
1758 | struct genl_info *info) | |
1759 | { | |
d7555984 | 1760 | struct nlattr *nla_parent, **attrs = info->attrs; |
a8ecb93e | 1761 | int err = -EOPNOTSUPP; |
cd502236 | 1762 | u32 priority; |
6e2d7e84 | 1763 | u32 weight; |
1897db2e | 1764 | u64 rate; |
1897db2e DL |
1765 | |
1766 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE]) { | |
1767 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_SHARE]); | |
a8ecb93e DL |
1768 | if (devlink_rate_is_leaf(devlink_rate)) |
1769 | err = ops->rate_leaf_tx_share_set(devlink_rate, devlink_rate->priv, | |
1770 | rate, info->extack); | |
1771 | else if (devlink_rate_is_node(devlink_rate)) | |
1772 | err = ops->rate_node_tx_share_set(devlink_rate, devlink_rate->priv, | |
1773 | rate, info->extack); | |
1897db2e DL |
1774 | if (err) |
1775 | return err; | |
1776 | devlink_rate->tx_share = rate; | |
1777 | } | |
1778 | ||
1779 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX]) { | |
1780 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_MAX]); | |
a8ecb93e DL |
1781 | if (devlink_rate_is_leaf(devlink_rate)) |
1782 | err = ops->rate_leaf_tx_max_set(devlink_rate, devlink_rate->priv, | |
1783 | rate, info->extack); | |
1784 | else if (devlink_rate_is_node(devlink_rate)) | |
1785 | err = ops->rate_node_tx_max_set(devlink_rate, devlink_rate->priv, | |
1786 | rate, info->extack); | |
1897db2e DL |
1787 | if (err) |
1788 | return err; | |
1789 | devlink_rate->tx_max = rate; | |
1790 | } | |
1791 | ||
cd502236 MW |
1792 | if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY]) { |
1793 | priority = nla_get_u32(attrs[DEVLINK_ATTR_RATE_TX_PRIORITY]); | |
1794 | if (devlink_rate_is_leaf(devlink_rate)) | |
1795 | err = ops->rate_leaf_tx_priority_set(devlink_rate, devlink_rate->priv, | |
1796 | priority, info->extack); | |
1797 | else if (devlink_rate_is_node(devlink_rate)) | |
1798 | err = ops->rate_node_tx_priority_set(devlink_rate, devlink_rate->priv, | |
1799 | priority, info->extack); | |
1800 | ||
1801 | if (err) | |
1802 | return err; | |
1803 | devlink_rate->tx_priority = priority; | |
1804 | } | |
1805 | ||
6e2d7e84 MW |
1806 | if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT]) { |
1807 | weight = nla_get_u32(attrs[DEVLINK_ATTR_RATE_TX_WEIGHT]); | |
1808 | if (devlink_rate_is_leaf(devlink_rate)) | |
1809 | err = ops->rate_leaf_tx_weight_set(devlink_rate, devlink_rate->priv, | |
1810 | weight, info->extack); | |
1811 | else if (devlink_rate_is_node(devlink_rate)) | |
1812 | err = ops->rate_node_tx_weight_set(devlink_rate, devlink_rate->priv, | |
1813 | weight, info->extack); | |
1814 | ||
1815 | if (err) | |
1816 | return err; | |
1817 | devlink_rate->tx_weight = weight; | |
1818 | } | |
1819 | ||
d7555984 DL |
1820 | nla_parent = attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME]; |
1821 | if (nla_parent) { | |
1822 | err = devlink_nl_rate_parent_node_set(devlink_rate, info, | |
1823 | nla_parent); | |
1824 | if (err) | |
1825 | return err; | |
1826 | } | |
1827 | ||
1897db2e DL |
1828 | return 0; |
1829 | } | |
1830 | ||
1831 | static bool devlink_rate_set_ops_supported(const struct devlink_ops *ops, | |
1832 | struct genl_info *info, | |
1833 | enum devlink_rate_type type) | |
1834 | { | |
1835 | struct nlattr **attrs = info->attrs; | |
1836 | ||
1837 | if (type == DEVLINK_RATE_TYPE_LEAF) { | |
1838 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_leaf_tx_share_set) { | |
1839 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the leafs"); | |
1840 | return false; | |
1841 | } | |
1842 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_leaf_tx_max_set) { | |
1843 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the leafs"); | |
1844 | return false; | |
1845 | } | |
d7555984 DL |
1846 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
1847 | !ops->rate_leaf_parent_set) { | |
1848 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the leafs"); | |
1849 | return false; | |
1850 | } | |
cd502236 MW |
1851 | if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY] && !ops->rate_leaf_tx_priority_set) { |
1852 | NL_SET_ERR_MSG_ATTR(info->extack, | |
1853 | attrs[DEVLINK_ATTR_RATE_TX_PRIORITY], | |
1854 | "TX priority set isn't supported for the leafs"); | |
1855 | return false; | |
1856 | } | |
6e2d7e84 MW |
1857 | if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT] && !ops->rate_leaf_tx_weight_set) { |
1858 | NL_SET_ERR_MSG_ATTR(info->extack, | |
1859 | attrs[DEVLINK_ATTR_RATE_TX_WEIGHT], | |
1860 | "TX weight set isn't supported for the leafs"); | |
1861 | return false; | |
1862 | } | |
a8ecb93e DL |
1863 | } else if (type == DEVLINK_RATE_TYPE_NODE) { |
1864 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_node_tx_share_set) { | |
1865 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the nodes"); | |
1866 | return false; | |
1867 | } | |
1868 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_node_tx_max_set) { | |
1869 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the nodes"); | |
1870 | return false; | |
1871 | } | |
d7555984 DL |
1872 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
1873 | !ops->rate_node_parent_set) { | |
1874 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the nodes"); | |
1875 | return false; | |
1876 | } | |
cd502236 MW |
1877 | if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY] && !ops->rate_node_tx_priority_set) { |
1878 | NL_SET_ERR_MSG_ATTR(info->extack, | |
1879 | attrs[DEVLINK_ATTR_RATE_TX_PRIORITY], | |
1880 | "TX priority set isn't supported for the nodes"); | |
1881 | return false; | |
1882 | } | |
6e2d7e84 MW |
1883 | if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT] && !ops->rate_node_tx_weight_set) { |
1884 | NL_SET_ERR_MSG_ATTR(info->extack, | |
1885 | attrs[DEVLINK_ATTR_RATE_TX_WEIGHT], | |
1886 | "TX weight set isn't supported for the nodes"); | |
1887 | return false; | |
1888 | } | |
1897db2e | 1889 | } else { |
711d1dee | 1890 | WARN(1, "Unknown type of rate object"); |
1897db2e DL |
1891 | return false; |
1892 | } | |
1893 | ||
1894 | return true; | |
1895 | } | |
1896 | ||
1897 | static int devlink_nl_cmd_rate_set_doit(struct sk_buff *skb, | |
1898 | struct genl_info *info) | |
1899 | { | |
1900 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
1901 | struct devlink *devlink = devlink_rate->devlink; | |
1902 | const struct devlink_ops *ops = devlink->ops; | |
1903 | int err; | |
1904 | ||
1905 | if (!ops || !devlink_rate_set_ops_supported(ops, info, devlink_rate->type)) | |
1906 | return -EOPNOTSUPP; | |
1907 | ||
1908 | err = devlink_nl_rate_set(devlink_rate, ops, info); | |
1909 | ||
1910 | if (!err) | |
1911 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
1912 | return err; | |
1913 | } | |
1914 | ||
a8ecb93e DL |
1915 | static int devlink_nl_cmd_rate_new_doit(struct sk_buff *skb, |
1916 | struct genl_info *info) | |
1917 | { | |
1918 | struct devlink *devlink = info->user_ptr[0]; | |
1919 | struct devlink_rate *rate_node; | |
1920 | const struct devlink_ops *ops; | |
1921 | int err; | |
1922 | ||
1923 | ops = devlink->ops; | |
1924 | if (!ops || !ops->rate_node_new || !ops->rate_node_del) { | |
1925 | NL_SET_ERR_MSG_MOD(info->extack, "Rate nodes aren't supported"); | |
1926 | return -EOPNOTSUPP; | |
1927 | } | |
1928 | ||
1929 | if (!devlink_rate_set_ops_supported(ops, info, DEVLINK_RATE_TYPE_NODE)) | |
1930 | return -EOPNOTSUPP; | |
1931 | ||
1932 | rate_node = devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
1933 | if (!IS_ERR(rate_node)) | |
1934 | return -EEXIST; | |
1935 | else if (rate_node == ERR_PTR(-EINVAL)) | |
1936 | return -EINVAL; | |
1937 | ||
1938 | rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL); | |
1939 | if (!rate_node) | |
1940 | return -ENOMEM; | |
1941 | ||
1942 | rate_node->devlink = devlink; | |
1943 | rate_node->type = DEVLINK_RATE_TYPE_NODE; | |
1944 | rate_node->name = nla_strdup(info->attrs[DEVLINK_ATTR_RATE_NODE_NAME], GFP_KERNEL); | |
1945 | if (!rate_node->name) { | |
1946 | err = -ENOMEM; | |
1947 | goto err_strdup; | |
1948 | } | |
1949 | ||
1950 | err = ops->rate_node_new(rate_node, &rate_node->priv, info->extack); | |
1951 | if (err) | |
1952 | goto err_node_new; | |
1953 | ||
1954 | err = devlink_nl_rate_set(rate_node, ops, info); | |
1955 | if (err) | |
1956 | goto err_rate_set; | |
1957 | ||
d7555984 | 1958 | refcount_set(&rate_node->refcnt, 1); |
a8ecb93e DL |
1959 | list_add(&rate_node->list, &devlink->rate_list); |
1960 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
1961 | return 0; | |
1962 | ||
1963 | err_rate_set: | |
1964 | ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
1965 | err_node_new: | |
1966 | kfree(rate_node->name); | |
1967 | err_strdup: | |
1968 | kfree(rate_node); | |
1969 | return err; | |
1970 | } | |
1971 | ||
1972 | static int devlink_nl_cmd_rate_del_doit(struct sk_buff *skb, | |
1973 | struct genl_info *info) | |
1974 | { | |
1975 | struct devlink_rate *rate_node = info->user_ptr[1]; | |
1976 | struct devlink *devlink = rate_node->devlink; | |
1977 | const struct devlink_ops *ops = devlink->ops; | |
1978 | int err; | |
1979 | ||
d7555984 DL |
1980 | if (refcount_read(&rate_node->refcnt) > 1) { |
1981 | NL_SET_ERR_MSG_MOD(info->extack, "Node has children. Cannot delete node."); | |
1982 | return -EBUSY; | |
1983 | } | |
1984 | ||
a8ecb93e DL |
1985 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); |
1986 | err = ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
d7555984 DL |
1987 | if (rate_node->parent) |
1988 | refcount_dec(&rate_node->parent->refcnt); | |
a8ecb93e DL |
1989 | list_del(&rate_node->list); |
1990 | kfree(rate_node->name); | |
1991 | kfree(rate_node); | |
1992 | return err; | |
1993 | } | |
1994 | ||
fcdc8ce2 JP |
1995 | struct devlink_linecard_type { |
1996 | const char *type; | |
1997 | const void *priv; | |
1998 | }; | |
1999 | ||
c246f9b5 JP |
2000 | static int devlink_nl_linecard_fill(struct sk_buff *msg, |
2001 | struct devlink *devlink, | |
2002 | struct devlink_linecard *linecard, | |
2003 | enum devlink_command cmd, u32 portid, | |
2004 | u32 seq, int flags, | |
2005 | struct netlink_ext_ack *extack) | |
2006 | { | |
fcdc8ce2 JP |
2007 | struct devlink_linecard_type *linecard_type; |
2008 | struct nlattr *attr; | |
c246f9b5 | 2009 | void *hdr; |
fcdc8ce2 | 2010 | int i; |
c246f9b5 JP |
2011 | |
2012 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2013 | if (!hdr) | |
2014 | return -EMSGSIZE; | |
2015 | ||
2016 | if (devlink_nl_put_handle(msg, devlink)) | |
2017 | goto nla_put_failure; | |
2018 | if (nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, linecard->index)) | |
2019 | goto nla_put_failure; | |
fcdc8ce2 JP |
2020 | if (nla_put_u8(msg, DEVLINK_ATTR_LINECARD_STATE, linecard->state)) |
2021 | goto nla_put_failure; | |
2022 | if (linecard->type && | |
2023 | nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, linecard->type)) | |
2024 | goto nla_put_failure; | |
2025 | ||
2026 | if (linecard->types_count) { | |
2027 | attr = nla_nest_start(msg, | |
2028 | DEVLINK_ATTR_LINECARD_SUPPORTED_TYPES); | |
2029 | if (!attr) | |
2030 | goto nla_put_failure; | |
2031 | for (i = 0; i < linecard->types_count; i++) { | |
2032 | linecard_type = &linecard->types[i]; | |
2033 | if (nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, | |
2034 | linecard_type->type)) { | |
2035 | nla_nest_cancel(msg, attr); | |
2036 | goto nla_put_failure; | |
2037 | } | |
2038 | } | |
2039 | nla_nest_end(msg, attr); | |
2040 | } | |
c246f9b5 | 2041 | |
7b2d9a1a JP |
2042 | if (linecard->nested_devlink && |
2043 | devlink_nl_put_nested_handle(msg, linecard->nested_devlink)) | |
2044 | goto nla_put_failure; | |
2045 | ||
c246f9b5 JP |
2046 | genlmsg_end(msg, hdr); |
2047 | return 0; | |
2048 | ||
2049 | nla_put_failure: | |
2050 | genlmsg_cancel(msg, hdr); | |
2051 | return -EMSGSIZE; | |
2052 | } | |
2053 | ||
2054 | static void devlink_linecard_notify(struct devlink_linecard *linecard, | |
2055 | enum devlink_command cmd) | |
2056 | { | |
2057 | struct devlink *devlink = linecard->devlink; | |
2058 | struct sk_buff *msg; | |
2059 | int err; | |
2060 | ||
2061 | WARN_ON(cmd != DEVLINK_CMD_LINECARD_NEW && | |
2062 | cmd != DEVLINK_CMD_LINECARD_DEL); | |
2063 | ||
2064 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
2065 | return; | |
2066 | ||
2067 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2068 | if (!msg) | |
2069 | return; | |
2070 | ||
2071 | err = devlink_nl_linecard_fill(msg, devlink, linecard, cmd, 0, 0, 0, | |
2072 | NULL); | |
2073 | if (err) { | |
2074 | nlmsg_free(msg); | |
2075 | return; | |
2076 | } | |
2077 | ||
2078 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2079 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2080 | } | |
2081 | ||
2082 | static int devlink_nl_cmd_linecard_get_doit(struct sk_buff *skb, | |
2083 | struct genl_info *info) | |
2084 | { | |
2085 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2086 | struct devlink *devlink = linecard->devlink; | |
2087 | struct sk_buff *msg; | |
2088 | int err; | |
2089 | ||
2090 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2091 | if (!msg) | |
2092 | return -ENOMEM; | |
2093 | ||
fcdc8ce2 | 2094 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2095 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2096 | DEVLINK_CMD_LINECARD_NEW, | |
2097 | info->snd_portid, info->snd_seq, 0, | |
2098 | info->extack); | |
fcdc8ce2 | 2099 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2100 | if (err) { |
2101 | nlmsg_free(msg); | |
2102 | return err; | |
2103 | } | |
2104 | ||
2105 | return genlmsg_reply(msg, info); | |
2106 | } | |
2107 | ||
25573968 JP |
2108 | static int devlink_nl_cmd_linecard_get_dump_one(struct sk_buff *msg, |
2109 | struct devlink *devlink, | |
2110 | struct netlink_callback *cb) | |
c246f9b5 | 2111 | { |
3015f822 | 2112 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
c246f9b5 | 2113 | struct devlink_linecard *linecard; |
25573968 JP |
2114 | int idx = 0; |
2115 | int err = 0; | |
ed539ba6 | 2116 | |
25573968 JP |
2117 | list_for_each_entry(linecard, &devlink->linecard_list, list) { |
2118 | if (idx < state->idx) { | |
c246f9b5 | 2119 | idx++; |
25573968 | 2120 | continue; |
c246f9b5 | 2121 | } |
25573968 JP |
2122 | mutex_lock(&linecard->state_lock); |
2123 | err = devlink_nl_linecard_fill(msg, devlink, linecard, | |
2124 | DEVLINK_CMD_LINECARD_NEW, | |
2125 | NETLINK_CB(cb->skb).portid, | |
2126 | cb->nlh->nlmsg_seq, | |
2127 | NLM_F_MULTI, | |
2128 | cb->extack); | |
2129 | mutex_unlock(&linecard->state_lock); | |
2130 | if (err) { | |
2131 | state->idx = idx; | |
2132 | break; | |
2133 | } | |
2134 | idx++; | |
c246f9b5 | 2135 | } |
25573968 JP |
2136 | |
2137 | return err; | |
c246f9b5 JP |
2138 | } |
2139 | ||
25573968 JP |
2140 | const struct devlink_gen_cmd devl_gen_linecard = { |
2141 | .dump_one = devlink_nl_cmd_linecard_get_dump_one, | |
2142 | }; | |
2143 | ||
fcdc8ce2 JP |
2144 | static struct devlink_linecard_type * |
2145 | devlink_linecard_type_lookup(struct devlink_linecard *linecard, | |
2146 | const char *type) | |
2147 | { | |
2148 | struct devlink_linecard_type *linecard_type; | |
2149 | int i; | |
2150 | ||
2151 | for (i = 0; i < linecard->types_count; i++) { | |
2152 | linecard_type = &linecard->types[i]; | |
2153 | if (!strcmp(type, linecard_type->type)) | |
2154 | return linecard_type; | |
2155 | } | |
2156 | return NULL; | |
2157 | } | |
2158 | ||
2159 | static int devlink_linecard_type_set(struct devlink_linecard *linecard, | |
2160 | const char *type, | |
2161 | struct netlink_ext_ack *extack) | |
2162 | { | |
2163 | const struct devlink_linecard_ops *ops = linecard->ops; | |
2164 | struct devlink_linecard_type *linecard_type; | |
2165 | int err; | |
2166 | ||
2167 | mutex_lock(&linecard->state_lock); | |
2168 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2169 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2170 | err = -EBUSY; | |
2171 | goto out; | |
2172 | } | |
2173 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2174 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2175 | err = -EBUSY; | |
2176 | goto out; | |
2177 | } | |
2178 | ||
2179 | linecard_type = devlink_linecard_type_lookup(linecard, type); | |
2180 | if (!linecard_type) { | |
2181 | NL_SET_ERR_MSG_MOD(extack, "Unsupported line card type provided"); | |
2182 | err = -EINVAL; | |
2183 | goto out; | |
2184 | } | |
2185 | ||
2186 | if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED && | |
2187 | linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2188 | NL_SET_ERR_MSG_MOD(extack, "Line card already provisioned"); | |
2189 | err = -EBUSY; | |
2190 | /* Check if the line card is provisioned in the same | |
2191 | * way the user asks. In case it is, make the operation | |
2192 | * to return success. | |
2193 | */ | |
2194 | if (ops->same_provision && | |
2195 | ops->same_provision(linecard, linecard->priv, | |
2196 | linecard_type->type, | |
2197 | linecard_type->priv)) | |
2198 | err = 0; | |
2199 | goto out; | |
2200 | } | |
2201 | ||
2202 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING; | |
2203 | linecard->type = linecard_type->type; | |
2204 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2205 | mutex_unlock(&linecard->state_lock); | |
2206 | err = ops->provision(linecard, linecard->priv, linecard_type->type, | |
2207 | linecard_type->priv, extack); | |
2208 | if (err) { | |
2209 | /* Provisioning failed. Assume the linecard is unprovisioned | |
2210 | * for future operations. | |
2211 | */ | |
2212 | mutex_lock(&linecard->state_lock); | |
2213 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2214 | linecard->type = NULL; | |
2215 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2216 | mutex_unlock(&linecard->state_lock); | |
2217 | } | |
2218 | return err; | |
2219 | ||
2220 | out: | |
2221 | mutex_unlock(&linecard->state_lock); | |
2222 | return err; | |
2223 | } | |
2224 | ||
2225 | static int devlink_linecard_type_unset(struct devlink_linecard *linecard, | |
2226 | struct netlink_ext_ack *extack) | |
2227 | { | |
2228 | int err; | |
2229 | ||
2230 | mutex_lock(&linecard->state_lock); | |
2231 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2232 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2233 | err = -EBUSY; | |
2234 | goto out; | |
2235 | } | |
2236 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2237 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2238 | err = -EBUSY; | |
2239 | goto out; | |
2240 | } | |
2241 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2242 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2243 | linecard->type = NULL; | |
2244 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2245 | err = 0; | |
2246 | goto out; | |
2247 | } | |
2248 | ||
2249 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) { | |
2250 | NL_SET_ERR_MSG_MOD(extack, "Line card is not provisioned"); | |
2251 | err = 0; | |
2252 | goto out; | |
2253 | } | |
2254 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING; | |
2255 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2256 | mutex_unlock(&linecard->state_lock); | |
2257 | err = linecard->ops->unprovision(linecard, linecard->priv, | |
2258 | extack); | |
2259 | if (err) { | |
2260 | /* Unprovisioning failed. Assume the linecard is unprovisioned | |
2261 | * for future operations. | |
2262 | */ | |
2263 | mutex_lock(&linecard->state_lock); | |
2264 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2265 | linecard->type = NULL; | |
2266 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2267 | mutex_unlock(&linecard->state_lock); | |
2268 | } | |
2269 | return err; | |
2270 | ||
2271 | out: | |
2272 | mutex_unlock(&linecard->state_lock); | |
2273 | return err; | |
2274 | } | |
2275 | ||
2276 | static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, | |
2277 | struct genl_info *info) | |
2278 | { | |
2279 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2280 | struct netlink_ext_ack *extack = info->extack; | |
2281 | int err; | |
2282 | ||
2283 | if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { | |
2284 | const char *type; | |
2285 | ||
2286 | type = nla_data(info->attrs[DEVLINK_ATTR_LINECARD_TYPE]); | |
2287 | if (strcmp(type, "")) { | |
2288 | err = devlink_linecard_type_set(linecard, type, extack); | |
2289 | if (err) | |
2290 | return err; | |
2291 | } else { | |
2292 | err = devlink_linecard_type_unset(linecard, extack); | |
2293 | if (err) | |
2294 | return err; | |
2295 | } | |
2296 | } | |
2297 | ||
2298 | return 0; | |
2299 | } | |
2300 | ||
bf797471 JP |
2301 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
2302 | struct devlink_sb *devlink_sb, | |
2303 | enum devlink_command cmd, u32 portid, | |
2304 | u32 seq, int flags) | |
2305 | { | |
2306 | void *hdr; | |
2307 | ||
2308 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2309 | if (!hdr) | |
2310 | return -EMSGSIZE; | |
2311 | ||
2312 | if (devlink_nl_put_handle(msg, devlink)) | |
2313 | goto nla_put_failure; | |
2314 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2315 | goto nla_put_failure; | |
2316 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
2317 | goto nla_put_failure; | |
2318 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
2319 | devlink_sb->ingress_pools_count)) | |
2320 | goto nla_put_failure; | |
2321 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
2322 | devlink_sb->egress_pools_count)) | |
2323 | goto nla_put_failure; | |
2324 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
2325 | devlink_sb->ingress_tc_count)) | |
2326 | goto nla_put_failure; | |
2327 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
2328 | devlink_sb->egress_tc_count)) | |
2329 | goto nla_put_failure; | |
2330 | ||
2331 | genlmsg_end(msg, hdr); | |
2332 | return 0; | |
2333 | ||
2334 | nla_put_failure: | |
2335 | genlmsg_cancel(msg, hdr); | |
2336 | return -EMSGSIZE; | |
2337 | } | |
2338 | ||
2339 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
2340 | struct genl_info *info) | |
2341 | { | |
2342 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2343 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2344 | struct sk_buff *msg; |
2345 | int err; | |
2346 | ||
637989b5 PP |
2347 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2348 | if (IS_ERR(devlink_sb)) | |
2349 | return PTR_ERR(devlink_sb); | |
2350 | ||
bf797471 JP |
2351 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2352 | if (!msg) | |
2353 | return -ENOMEM; | |
2354 | ||
2355 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2356 | DEVLINK_CMD_SB_NEW, | |
2357 | info->snd_portid, info->snd_seq, 0); | |
2358 | if (err) { | |
2359 | nlmsg_free(msg); | |
2360 | return err; | |
2361 | } | |
2362 | ||
2363 | return genlmsg_reply(msg, info); | |
2364 | } | |
2365 | ||
5ce76d78 JK |
2366 | static int |
2367 | devlink_nl_cmd_sb_get_dump_one(struct sk_buff *msg, struct devlink *devlink, | |
2368 | struct netlink_callback *cb) | |
bf797471 | 2369 | { |
3015f822 | 2370 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 JK |
2371 | struct devlink_sb *devlink_sb; |
2372 | int idx = 0; | |
2373 | int err = 0; | |
a8f94707 | 2374 | |
5ce76d78 JK |
2375 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2376 | if (idx < state->idx) { | |
bf797471 | 2377 | idx++; |
5ce76d78 | 2378 | continue; |
bf797471 | 2379 | } |
5ce76d78 JK |
2380 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, |
2381 | DEVLINK_CMD_SB_NEW, | |
2382 | NETLINK_CB(cb->skb).portid, | |
2383 | cb->nlh->nlmsg_seq, | |
2384 | NLM_F_MULTI); | |
2385 | if (err) { | |
2386 | state->idx = idx; | |
2387 | break; | |
2388 | } | |
2389 | idx++; | |
bf797471 | 2390 | } |
5ce76d78 JK |
2391 | |
2392 | return err; | |
bf797471 JP |
2393 | } |
2394 | ||
5ce76d78 JK |
2395 | const struct devlink_gen_cmd devl_gen_sb = { |
2396 | .dump_one = devlink_nl_cmd_sb_get_dump_one, | |
2397 | }; | |
2398 | ||
bf797471 JP |
2399 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, |
2400 | struct devlink_sb *devlink_sb, | |
2401 | u16 pool_index, enum devlink_command cmd, | |
2402 | u32 portid, u32 seq, int flags) | |
2403 | { | |
2404 | struct devlink_sb_pool_info pool_info; | |
2405 | void *hdr; | |
2406 | int err; | |
2407 | ||
2408 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
2409 | pool_index, &pool_info); | |
2410 | if (err) | |
2411 | return err; | |
2412 | ||
2413 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2414 | if (!hdr) | |
2415 | return -EMSGSIZE; | |
2416 | ||
2417 | if (devlink_nl_put_handle(msg, devlink)) | |
2418 | goto nla_put_failure; | |
2419 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2420 | goto nla_put_failure; | |
2421 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2422 | goto nla_put_failure; | |
2423 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
2424 | goto nla_put_failure; | |
2425 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
2426 | goto nla_put_failure; | |
2427 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
2428 | pool_info.threshold_type)) | |
2429 | goto nla_put_failure; | |
bff5731d JK |
2430 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
2431 | pool_info.cell_size)) | |
2432 | goto nla_put_failure; | |
bf797471 JP |
2433 | |
2434 | genlmsg_end(msg, hdr); | |
2435 | return 0; | |
2436 | ||
2437 | nla_put_failure: | |
2438 | genlmsg_cancel(msg, hdr); | |
2439 | return -EMSGSIZE; | |
2440 | } | |
2441 | ||
2442 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
2443 | struct genl_info *info) | |
2444 | { | |
2445 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2446 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2447 | struct sk_buff *msg; |
2448 | u16 pool_index; | |
2449 | int err; | |
2450 | ||
637989b5 PP |
2451 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2452 | if (IS_ERR(devlink_sb)) | |
2453 | return PTR_ERR(devlink_sb); | |
2454 | ||
bf797471 JP |
2455 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2456 | &pool_index); | |
2457 | if (err) | |
2458 | return err; | |
2459 | ||
be6fe1d8 | 2460 | if (!devlink->ops->sb_pool_get) |
bf797471 JP |
2461 | return -EOPNOTSUPP; |
2462 | ||
2463 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2464 | if (!msg) | |
2465 | return -ENOMEM; | |
2466 | ||
2467 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
2468 | DEVLINK_CMD_SB_POOL_NEW, | |
2469 | info->snd_portid, info->snd_seq, 0); | |
2470 | if (err) { | |
2471 | nlmsg_free(msg); | |
2472 | return err; | |
2473 | } | |
2474 | ||
2475 | return genlmsg_reply(msg, info); | |
2476 | } | |
2477 | ||
2478 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2479 | struct devlink *devlink, | |
2480 | struct devlink_sb *devlink_sb, | |
2481 | u32 portid, u32 seq) | |
2482 | { | |
2483 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2484 | u16 pool_index; | |
2485 | int err; | |
2486 | ||
2487 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2488 | if (*p_idx < start) { | |
2489 | (*p_idx)++; | |
2490 | continue; | |
2491 | } | |
2492 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
2493 | devlink_sb, | |
2494 | pool_index, | |
2495 | DEVLINK_CMD_SB_POOL_NEW, | |
2496 | portid, seq, NLM_F_MULTI); | |
2497 | if (err) | |
2498 | return err; | |
2499 | (*p_idx)++; | |
2500 | } | |
2501 | return 0; | |
2502 | } | |
2503 | ||
5ce76d78 JK |
2504 | static int |
2505 | devlink_nl_cmd_sb_pool_get_dump_one(struct sk_buff *msg, | |
2506 | struct devlink *devlink, | |
2507 | struct netlink_callback *cb) | |
bf797471 | 2508 | { |
3015f822 | 2509 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 | 2510 | struct devlink_sb *devlink_sb; |
c62c2cfb | 2511 | int err = 0; |
5ce76d78 | 2512 | int idx = 0; |
bf797471 | 2513 | |
5ce76d78 JK |
2514 | if (!devlink->ops->sb_pool_get) |
2515 | return 0; | |
437ebfd9 | 2516 | |
5ce76d78 JK |
2517 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2518 | err = __sb_pool_get_dumpit(msg, state->idx, &idx, | |
2519 | devlink, devlink_sb, | |
2520 | NETLINK_CB(cb->skb).portid, | |
2521 | cb->nlh->nlmsg_seq); | |
2522 | if (err == -EOPNOTSUPP) { | |
2523 | err = 0; | |
2524 | } else if (err) { | |
2525 | state->idx = idx; | |
2526 | break; | |
bf797471 JP |
2527 | } |
2528 | } | |
c62c2cfb | 2529 | |
5ce76d78 | 2530 | return err; |
bf797471 JP |
2531 | } |
2532 | ||
5ce76d78 JK |
2533 | const struct devlink_gen_cmd devl_gen_sb_pool = { |
2534 | .dump_one = devlink_nl_cmd_sb_pool_get_dump_one, | |
2535 | }; | |
2536 | ||
bf797471 JP |
2537 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, |
2538 | u16 pool_index, u32 size, | |
f2ad1a52 IS |
2539 | enum devlink_sb_threshold_type threshold_type, |
2540 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2541 | |
2542 | { | |
2543 | const struct devlink_ops *ops = devlink->ops; | |
2544 | ||
be6fe1d8 | 2545 | if (ops->sb_pool_set) |
bf797471 | 2546 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
f2ad1a52 | 2547 | size, threshold_type, extack); |
bf797471 JP |
2548 | return -EOPNOTSUPP; |
2549 | } | |
2550 | ||
2551 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
2552 | struct genl_info *info) | |
2553 | { | |
2554 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 2555 | enum devlink_sb_threshold_type threshold_type; |
637989b5 | 2556 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2557 | u16 pool_index; |
2558 | u32 size; | |
2559 | int err; | |
2560 | ||
637989b5 PP |
2561 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2562 | if (IS_ERR(devlink_sb)) | |
2563 | return PTR_ERR(devlink_sb); | |
2564 | ||
bf797471 JP |
2565 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2566 | &pool_index); | |
2567 | if (err) | |
2568 | return err; | |
2569 | ||
2570 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
2571 | if (err) | |
2572 | return err; | |
2573 | ||
1f7633b5 | 2574 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_POOL_SIZE)) |
bf797471 JP |
2575 | return -EINVAL; |
2576 | ||
2577 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
2578 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
f2ad1a52 IS |
2579 | pool_index, size, threshold_type, |
2580 | info->extack); | |
bf797471 JP |
2581 | } |
2582 | ||
2583 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
2584 | struct devlink *devlink, | |
2585 | struct devlink_port *devlink_port, | |
2586 | struct devlink_sb *devlink_sb, | |
2587 | u16 pool_index, | |
2588 | enum devlink_command cmd, | |
2589 | u32 portid, u32 seq, int flags) | |
2590 | { | |
df38dafd | 2591 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2592 | u32 threshold; |
2593 | void *hdr; | |
2594 | int err; | |
2595 | ||
df38dafd JP |
2596 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
2597 | pool_index, &threshold); | |
bf797471 JP |
2598 | if (err) |
2599 | return err; | |
2600 | ||
2601 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2602 | if (!hdr) | |
2603 | return -EMSGSIZE; | |
2604 | ||
2605 | if (devlink_nl_put_handle(msg, devlink)) | |
2606 | goto nla_put_failure; | |
2607 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2608 | goto nla_put_failure; | |
2609 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2610 | goto nla_put_failure; | |
2611 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2612 | goto nla_put_failure; | |
2613 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2614 | goto nla_put_failure; | |
2615 | ||
df38dafd JP |
2616 | if (ops->sb_occ_port_pool_get) { |
2617 | u32 cur; | |
2618 | u32 max; | |
2619 | ||
2620 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
2621 | pool_index, &cur, &max); | |
2622 | if (err && err != -EOPNOTSUPP) | |
849920c7 | 2623 | goto sb_occ_get_failure; |
df38dafd JP |
2624 | if (!err) { |
2625 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2626 | goto nla_put_failure; | |
2627 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2628 | goto nla_put_failure; | |
2629 | } | |
2630 | } | |
2631 | ||
bf797471 JP |
2632 | genlmsg_end(msg, hdr); |
2633 | return 0; | |
2634 | ||
2635 | nla_put_failure: | |
849920c7 WH |
2636 | err = -EMSGSIZE; |
2637 | sb_occ_get_failure: | |
bf797471 | 2638 | genlmsg_cancel(msg, hdr); |
849920c7 | 2639 | return err; |
bf797471 JP |
2640 | } |
2641 | ||
2642 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
2643 | struct genl_info *info) | |
2644 | { | |
637989b5 | 2645 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2646 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2647 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2648 | struct sk_buff *msg; |
2649 | u16 pool_index; | |
2650 | int err; | |
2651 | ||
637989b5 PP |
2652 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2653 | if (IS_ERR(devlink_sb)) | |
2654 | return PTR_ERR(devlink_sb); | |
2655 | ||
bf797471 JP |
2656 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2657 | &pool_index); | |
2658 | if (err) | |
2659 | return err; | |
2660 | ||
be6fe1d8 | 2661 | if (!devlink->ops->sb_port_pool_get) |
bf797471 JP |
2662 | return -EOPNOTSUPP; |
2663 | ||
2664 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2665 | if (!msg) | |
2666 | return -ENOMEM; | |
2667 | ||
2668 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
2669 | devlink_sb, pool_index, | |
2670 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2671 | info->snd_portid, info->snd_seq, 0); | |
2672 | if (err) { | |
2673 | nlmsg_free(msg); | |
2674 | return err; | |
2675 | } | |
2676 | ||
2677 | return genlmsg_reply(msg, info); | |
2678 | } | |
2679 | ||
2680 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2681 | struct devlink *devlink, | |
2682 | struct devlink_sb *devlink_sb, | |
2683 | u32 portid, u32 seq) | |
2684 | { | |
2685 | struct devlink_port *devlink_port; | |
2686 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
47b438cc | 2687 | unsigned long port_index; |
bf797471 JP |
2688 | u16 pool_index; |
2689 | int err; | |
2690 | ||
47b438cc | 2691 | xa_for_each(&devlink->ports, port_index, devlink_port) { |
bf797471 JP |
2692 | for (pool_index = 0; pool_index < pool_count; pool_index++) { |
2693 | if (*p_idx < start) { | |
2694 | (*p_idx)++; | |
2695 | continue; | |
2696 | } | |
2697 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
2698 | devlink_port, | |
2699 | devlink_sb, | |
2700 | pool_index, | |
2701 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2702 | portid, seq, | |
2703 | NLM_F_MULTI); | |
2704 | if (err) | |
2705 | return err; | |
2706 | (*p_idx)++; | |
2707 | } | |
2708 | } | |
2709 | return 0; | |
2710 | } | |
2711 | ||
5ce76d78 JK |
2712 | static int |
2713 | devlink_nl_cmd_sb_port_pool_get_dump_one(struct sk_buff *msg, | |
2714 | struct devlink *devlink, | |
2715 | struct netlink_callback *cb) | |
bf797471 | 2716 | { |
3015f822 | 2717 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 JK |
2718 | struct devlink_sb *devlink_sb; |
2719 | int idx = 0; | |
c62c2cfb | 2720 | int err = 0; |
bf797471 | 2721 | |
5ce76d78 JK |
2722 | if (!devlink->ops->sb_port_pool_get) |
2723 | return 0; | |
437ebfd9 | 2724 | |
5ce76d78 JK |
2725 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2726 | err = __sb_port_pool_get_dumpit(msg, state->idx, &idx, | |
2727 | devlink, devlink_sb, | |
2728 | NETLINK_CB(cb->skb).portid, | |
2729 | cb->nlh->nlmsg_seq); | |
2730 | if (err == -EOPNOTSUPP) { | |
2731 | err = 0; | |
2732 | } else if (err) { | |
2733 | state->idx = idx; | |
2734 | break; | |
bf797471 JP |
2735 | } |
2736 | } | |
c62c2cfb | 2737 | |
5ce76d78 | 2738 | return err; |
bf797471 JP |
2739 | } |
2740 | ||
5ce76d78 JK |
2741 | const struct devlink_gen_cmd devl_gen_sb_port_pool = { |
2742 | .dump_one = devlink_nl_cmd_sb_port_pool_get_dump_one, | |
2743 | }; | |
2744 | ||
bf797471 JP |
2745 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, |
2746 | unsigned int sb_index, u16 pool_index, | |
f2ad1a52 IS |
2747 | u32 threshold, |
2748 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2749 | |
2750 | { | |
2751 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
2752 | ||
be6fe1d8 | 2753 | if (ops->sb_port_pool_set) |
bf797471 | 2754 | return ops->sb_port_pool_set(devlink_port, sb_index, |
f2ad1a52 | 2755 | pool_index, threshold, extack); |
bf797471 JP |
2756 | return -EOPNOTSUPP; |
2757 | } | |
2758 | ||
2759 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
2760 | struct genl_info *info) | |
2761 | { | |
637989b5 PP |
2762 | struct devlink_port *devlink_port = info->user_ptr[1]; |
2763 | struct devlink *devlink = info->user_ptr[0]; | |
2764 | struct devlink_sb *devlink_sb; | |
bf797471 JP |
2765 | u16 pool_index; |
2766 | u32 threshold; | |
2767 | int err; | |
2768 | ||
637989b5 PP |
2769 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2770 | if (IS_ERR(devlink_sb)) | |
2771 | return PTR_ERR(devlink_sb); | |
2772 | ||
bf797471 JP |
2773 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2774 | &pool_index); | |
2775 | if (err) | |
2776 | return err; | |
2777 | ||
1f7633b5 | 2778 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) |
bf797471 JP |
2779 | return -EINVAL; |
2780 | ||
2781 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
2782 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
f2ad1a52 | 2783 | pool_index, threshold, info->extack); |
bf797471 JP |
2784 | } |
2785 | ||
2786 | static int | |
2787 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
2788 | struct devlink_port *devlink_port, | |
2789 | struct devlink_sb *devlink_sb, u16 tc_index, | |
2790 | enum devlink_sb_pool_type pool_type, | |
2791 | enum devlink_command cmd, | |
2792 | u32 portid, u32 seq, int flags) | |
2793 | { | |
df38dafd | 2794 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2795 | u16 pool_index; |
2796 | u32 threshold; | |
2797 | void *hdr; | |
2798 | int err; | |
2799 | ||
df38dafd JP |
2800 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
2801 | tc_index, pool_type, | |
2802 | &pool_index, &threshold); | |
bf797471 JP |
2803 | if (err) |
2804 | return err; | |
2805 | ||
2806 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2807 | if (!hdr) | |
2808 | return -EMSGSIZE; | |
2809 | ||
2810 | if (devlink_nl_put_handle(msg, devlink)) | |
2811 | goto nla_put_failure; | |
2812 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2813 | goto nla_put_failure; | |
2814 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2815 | goto nla_put_failure; | |
2816 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
2817 | goto nla_put_failure; | |
2818 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
2819 | goto nla_put_failure; | |
2820 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2821 | goto nla_put_failure; | |
2822 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2823 | goto nla_put_failure; | |
2824 | ||
df38dafd JP |
2825 | if (ops->sb_occ_tc_port_bind_get) { |
2826 | u32 cur; | |
2827 | u32 max; | |
2828 | ||
2829 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
2830 | devlink_sb->index, | |
2831 | tc_index, pool_type, | |
2832 | &cur, &max); | |
2833 | if (err && err != -EOPNOTSUPP) | |
2834 | return err; | |
2835 | if (!err) { | |
2836 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2837 | goto nla_put_failure; | |
2838 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2839 | goto nla_put_failure; | |
2840 | } | |
2841 | } | |
2842 | ||
bf797471 JP |
2843 | genlmsg_end(msg, hdr); |
2844 | return 0; | |
2845 | ||
2846 | nla_put_failure: | |
2847 | genlmsg_cancel(msg, hdr); | |
2848 | return -EMSGSIZE; | |
2849 | } | |
2850 | ||
2851 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
2852 | struct genl_info *info) | |
2853 | { | |
637989b5 | 2854 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2855 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2856 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2857 | struct sk_buff *msg; |
2858 | enum devlink_sb_pool_type pool_type; | |
2859 | u16 tc_index; | |
2860 | int err; | |
2861 | ||
637989b5 PP |
2862 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2863 | if (IS_ERR(devlink_sb)) | |
2864 | return PTR_ERR(devlink_sb); | |
2865 | ||
bf797471 JP |
2866 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
2867 | if (err) | |
2868 | return err; | |
2869 | ||
2870 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
2871 | pool_type, &tc_index); | |
2872 | if (err) | |
2873 | return err; | |
2874 | ||
be6fe1d8 | 2875 | if (!devlink->ops->sb_tc_pool_bind_get) |
bf797471 JP |
2876 | return -EOPNOTSUPP; |
2877 | ||
2878 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2879 | if (!msg) | |
2880 | return -ENOMEM; | |
2881 | ||
2882 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
2883 | devlink_sb, tc_index, pool_type, | |
2884 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
2885 | info->snd_portid, | |
2886 | info->snd_seq, 0); | |
2887 | if (err) { | |
2888 | nlmsg_free(msg); | |
2889 | return err; | |
2890 | } | |
2891 | ||
2892 | return genlmsg_reply(msg, info); | |
2893 | } | |
2894 | ||
2895 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
2896 | int start, int *p_idx, | |
2897 | struct devlink *devlink, | |
2898 | struct devlink_sb *devlink_sb, | |
2899 | u32 portid, u32 seq) | |
2900 | { | |
2901 | struct devlink_port *devlink_port; | |
47b438cc | 2902 | unsigned long port_index; |
bf797471 JP |
2903 | u16 tc_index; |
2904 | int err; | |
2905 | ||
47b438cc | 2906 | xa_for_each(&devlink->ports, port_index, devlink_port) { |
bf797471 JP |
2907 | for (tc_index = 0; |
2908 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
2909 | if (*p_idx < start) { | |
2910 | (*p_idx)++; | |
2911 | continue; | |
2912 | } | |
2913 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
2914 | devlink_port, | |
2915 | devlink_sb, | |
2916 | tc_index, | |
2917 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
2918 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
2919 | portid, seq, | |
2920 | NLM_F_MULTI); | |
2921 | if (err) | |
2922 | return err; | |
2923 | (*p_idx)++; | |
2924 | } | |
2925 | for (tc_index = 0; | |
2926 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
2927 | if (*p_idx < start) { | |
2928 | (*p_idx)++; | |
2929 | continue; | |
2930 | } | |
2931 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
2932 | devlink_port, | |
2933 | devlink_sb, | |
2934 | tc_index, | |
2935 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
2936 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
2937 | portid, seq, | |
2938 | NLM_F_MULTI); | |
2939 | if (err) | |
2940 | return err; | |
2941 | (*p_idx)++; | |
2942 | } | |
2943 | } | |
2944 | return 0; | |
2945 | } | |
2946 | ||
2947 | static int | |
5ce76d78 JK |
2948 | devlink_nl_cmd_sb_tc_pool_bind_get_dump_one(struct sk_buff *msg, |
2949 | struct devlink *devlink, | |
2950 | struct netlink_callback *cb) | |
bf797471 | 2951 | { |
3015f822 | 2952 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 JK |
2953 | struct devlink_sb *devlink_sb; |
2954 | int idx = 0; | |
c62c2cfb | 2955 | int err = 0; |
bf797471 | 2956 | |
5ce76d78 JK |
2957 | if (!devlink->ops->sb_tc_pool_bind_get) |
2958 | return 0; | |
2406e7e5 | 2959 | |
5ce76d78 JK |
2960 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2961 | err = __sb_tc_pool_bind_get_dumpit(msg, state->idx, &idx, | |
2962 | devlink, devlink_sb, | |
2963 | NETLINK_CB(cb->skb).portid, | |
2964 | cb->nlh->nlmsg_seq); | |
2965 | if (err == -EOPNOTSUPP) { | |
2966 | err = 0; | |
2967 | } else if (err) { | |
2968 | state->idx = idx; | |
2969 | break; | |
bf797471 JP |
2970 | } |
2971 | } | |
c62c2cfb | 2972 | |
5ce76d78 | 2973 | return err; |
bf797471 JP |
2974 | } |
2975 | ||
5ce76d78 JK |
2976 | const struct devlink_gen_cmd devl_gen_sb_tc_pool_bind = { |
2977 | .dump_one = devlink_nl_cmd_sb_tc_pool_bind_get_dump_one, | |
2978 | }; | |
2979 | ||
bf797471 JP |
2980 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, |
2981 | unsigned int sb_index, u16 tc_index, | |
2982 | enum devlink_sb_pool_type pool_type, | |
f2ad1a52 IS |
2983 | u16 pool_index, u32 threshold, |
2984 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2985 | |
2986 | { | |
2987 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
2988 | ||
be6fe1d8 | 2989 | if (ops->sb_tc_pool_bind_set) |
bf797471 JP |
2990 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
2991 | tc_index, pool_type, | |
f2ad1a52 | 2992 | pool_index, threshold, extack); |
bf797471 JP |
2993 | return -EOPNOTSUPP; |
2994 | } | |
2995 | ||
2996 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
2997 | struct genl_info *info) | |
2998 | { | |
637989b5 PP |
2999 | struct devlink_port *devlink_port = info->user_ptr[1]; |
3000 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 3001 | enum devlink_sb_pool_type pool_type; |
637989b5 | 3002 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3003 | u16 tc_index; |
3004 | u16 pool_index; | |
3005 | u32 threshold; | |
3006 | int err; | |
3007 | ||
637989b5 PP |
3008 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3009 | if (IS_ERR(devlink_sb)) | |
3010 | return PTR_ERR(devlink_sb); | |
3011 | ||
bf797471 JP |
3012 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3013 | if (err) | |
3014 | return err; | |
3015 | ||
3016 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3017 | pool_type, &tc_index); | |
3018 | if (err) | |
3019 | return err; | |
3020 | ||
3021 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
3022 | &pool_index); | |
3023 | if (err) | |
3024 | return err; | |
3025 | ||
1f7633b5 | 3026 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) |
bf797471 JP |
3027 | return -EINVAL; |
3028 | ||
3029 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
3030 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
3031 | tc_index, pool_type, | |
f2ad1a52 | 3032 | pool_index, threshold, info->extack); |
bf797471 JP |
3033 | } |
3034 | ||
df38dafd JP |
3035 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
3036 | struct genl_info *info) | |
3037 | { | |
3038 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3039 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3040 | struct devlink_sb *devlink_sb; |
3041 | ||
3042 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3043 | if (IS_ERR(devlink_sb)) | |
3044 | return PTR_ERR(devlink_sb); | |
df38dafd | 3045 | |
be6fe1d8 | 3046 | if (ops->sb_occ_snapshot) |
df38dafd JP |
3047 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
3048 | return -EOPNOTSUPP; | |
3049 | } | |
3050 | ||
3051 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
3052 | struct genl_info *info) | |
3053 | { | |
3054 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3055 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3056 | struct devlink_sb *devlink_sb; |
3057 | ||
3058 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3059 | if (IS_ERR(devlink_sb)) | |
3060 | return PTR_ERR(devlink_sb); | |
df38dafd | 3061 | |
be6fe1d8 | 3062 | if (ops->sb_occ_max_clear) |
df38dafd JP |
3063 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
3064 | return -EOPNOTSUPP; | |
3065 | } | |
3066 | ||
21e3d2dd JP |
3067 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
3068 | enum devlink_command cmd, u32 portid, | |
3069 | u32 seq, int flags) | |
08f4b591 | 3070 | { |
59bfde01 | 3071 | const struct devlink_ops *ops = devlink->ops; |
98fdbea5 LR |
3072 | enum devlink_eswitch_encap_mode encap_mode; |
3073 | u8 inline_mode; | |
08f4b591 | 3074 | void *hdr; |
59bfde01 RD |
3075 | int err = 0; |
3076 | u16 mode; | |
08f4b591 OG |
3077 | |
3078 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3079 | if (!hdr) | |
3080 | return -EMSGSIZE; | |
3081 | ||
59bfde01 RD |
3082 | err = devlink_nl_put_handle(msg, devlink); |
3083 | if (err) | |
1a6aa36b | 3084 | goto nla_put_failure; |
08f4b591 | 3085 | |
4456f61c JP |
3086 | if (ops->eswitch_mode_get) { |
3087 | err = ops->eswitch_mode_get(devlink, &mode); | |
3088 | if (err) | |
3089 | goto nla_put_failure; | |
3090 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
3091 | if (err) | |
3092 | goto nla_put_failure; | |
3093 | } | |
59bfde01 RD |
3094 | |
3095 | if (ops->eswitch_inline_mode_get) { | |
3096 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
3097 | if (err) | |
1a6aa36b | 3098 | goto nla_put_failure; |
59bfde01 RD |
3099 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
3100 | inline_mode); | |
3101 | if (err) | |
1a6aa36b | 3102 | goto nla_put_failure; |
59bfde01 | 3103 | } |
08f4b591 | 3104 | |
f43e9b06 RD |
3105 | if (ops->eswitch_encap_mode_get) { |
3106 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
3107 | if (err) | |
3108 | goto nla_put_failure; | |
3109 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
3110 | if (err) | |
3111 | goto nla_put_failure; | |
3112 | } | |
3113 | ||
08f4b591 OG |
3114 | genlmsg_end(msg, hdr); |
3115 | return 0; | |
3116 | ||
1a6aa36b | 3117 | nla_put_failure: |
08f4b591 | 3118 | genlmsg_cancel(msg, hdr); |
59bfde01 | 3119 | return err; |
08f4b591 OG |
3120 | } |
3121 | ||
adf200f3 JP |
3122 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
3123 | struct genl_info *info) | |
08f4b591 OG |
3124 | { |
3125 | struct devlink *devlink = info->user_ptr[0]; | |
08f4b591 | 3126 | struct sk_buff *msg; |
08f4b591 OG |
3127 | int err; |
3128 | ||
08f4b591 OG |
3129 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3130 | if (!msg) | |
3131 | return -ENOMEM; | |
3132 | ||
21e3d2dd JP |
3133 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
3134 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
3135 | |
3136 | if (err) { | |
3137 | nlmsg_free(msg); | |
3138 | return err; | |
3139 | } | |
3140 | ||
3141 | return genlmsg_reply(msg, info); | |
3142 | } | |
3143 | ||
a8ecb93e DL |
3144 | static int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, |
3145 | struct netlink_ext_ack *extack) | |
3146 | { | |
3147 | struct devlink_rate *devlink_rate; | |
a8ecb93e DL |
3148 | |
3149 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) | |
3150 | if (devlink_rate_is_node(devlink_rate)) { | |
3151 | NL_SET_ERR_MSG_MOD(extack, "Rate node(s) exists."); | |
3152 | return -EBUSY; | |
3153 | } | |
3154 | return 0; | |
3155 | } | |
3156 | ||
adf200f3 JP |
3157 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
3158 | struct genl_info *info) | |
08f4b591 OG |
3159 | { |
3160 | struct devlink *devlink = info->user_ptr[0]; | |
3161 | const struct devlink_ops *ops = devlink->ops; | |
98fdbea5 LR |
3162 | enum devlink_eswitch_encap_mode encap_mode; |
3163 | u8 inline_mode; | |
59bfde01 | 3164 | int err = 0; |
f43e9b06 | 3165 | u16 mode; |
08f4b591 | 3166 | |
59bfde01 RD |
3167 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
3168 | if (!ops->eswitch_mode_set) | |
3169 | return -EOPNOTSUPP; | |
3170 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
a8ecb93e DL |
3171 | err = devlink_rate_nodes_check(devlink, mode, info->extack); |
3172 | if (err) | |
3173 | return err; | |
db7ff19e | 3174 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
3175 | if (err) |
3176 | return err; | |
3177 | } | |
08f4b591 | 3178 | |
59bfde01 RD |
3179 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
3180 | if (!ops->eswitch_inline_mode_set) | |
3181 | return -EOPNOTSUPP; | |
3182 | inline_mode = nla_get_u8( | |
3183 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
3184 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
3185 | info->extack); | |
59bfde01 RD |
3186 | if (err) |
3187 | return err; | |
3188 | } | |
f43e9b06 RD |
3189 | |
3190 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
3191 | if (!ops->eswitch_encap_mode_set) | |
3192 | return -EOPNOTSUPP; | |
3193 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
3194 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
3195 | info->extack); | |
f43e9b06 RD |
3196 | if (err) |
3197 | return err; | |
3198 | } | |
3199 | ||
1555d204 AS |
3200 | return 0; |
3201 | } | |
3202 | ||
3203 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
3204 | struct devlink_dpipe_match *match) | |
3205 | { | |
3206 | struct devlink_dpipe_header *header = match->header; | |
3207 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
3208 | struct nlattr *match_attr; | |
3209 | ||
ae0be8de | 3210 | match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH); |
1555d204 AS |
3211 | if (!match_attr) |
3212 | return -EMSGSIZE; | |
3213 | ||
3214 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
3215 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
3216 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3217 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3218 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3219 | goto nla_put_failure; | |
3220 | ||
3221 | nla_nest_end(skb, match_attr); | |
3222 | return 0; | |
3223 | ||
3224 | nla_put_failure: | |
3225 | nla_nest_cancel(skb, match_attr); | |
3226 | return -EMSGSIZE; | |
3227 | } | |
3228 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
3229 | ||
3230 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
3231 | struct sk_buff *skb) | |
3232 | { | |
3233 | struct nlattr *matches_attr; | |
3234 | ||
ae0be8de MK |
3235 | matches_attr = nla_nest_start_noflag(skb, |
3236 | DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1555d204 AS |
3237 | if (!matches_attr) |
3238 | return -EMSGSIZE; | |
3239 | ||
3240 | if (table->table_ops->matches_dump(table->priv, skb)) | |
3241 | goto nla_put_failure; | |
3242 | ||
3243 | nla_nest_end(skb, matches_attr); | |
3244 | return 0; | |
3245 | ||
3246 | nla_put_failure: | |
3247 | nla_nest_cancel(skb, matches_attr); | |
3248 | return -EMSGSIZE; | |
3249 | } | |
3250 | ||
3251 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
3252 | struct devlink_dpipe_action *action) | |
3253 | { | |
3254 | struct devlink_dpipe_header *header = action->header; | |
3255 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
3256 | struct nlattr *action_attr; | |
3257 | ||
ae0be8de | 3258 | action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION); |
1555d204 AS |
3259 | if (!action_attr) |
3260 | return -EMSGSIZE; | |
3261 | ||
3262 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
3263 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
3264 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3265 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3266 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3267 | goto nla_put_failure; | |
3268 | ||
3269 | nla_nest_end(skb, action_attr); | |
3270 | return 0; | |
3271 | ||
3272 | nla_put_failure: | |
3273 | nla_nest_cancel(skb, action_attr); | |
3274 | return -EMSGSIZE; | |
3275 | } | |
3276 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
3277 | ||
3278 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
3279 | struct sk_buff *skb) | |
3280 | { | |
3281 | struct nlattr *actions_attr; | |
3282 | ||
ae0be8de MK |
3283 | actions_attr = nla_nest_start_noflag(skb, |
3284 | DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1555d204 AS |
3285 | if (!actions_attr) |
3286 | return -EMSGSIZE; | |
3287 | ||
3288 | if (table->table_ops->actions_dump(table->priv, skb)) | |
3289 | goto nla_put_failure; | |
3290 | ||
3291 | nla_nest_end(skb, actions_attr); | |
3292 | return 0; | |
3293 | ||
3294 | nla_put_failure: | |
3295 | nla_nest_cancel(skb, actions_attr); | |
3296 | return -EMSGSIZE; | |
3297 | } | |
3298 | ||
3299 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
3300 | struct devlink_dpipe_table *table) | |
3301 | { | |
3302 | struct nlattr *table_attr; | |
ffd3cdcc | 3303 | u64 table_size; |
1555d204 | 3304 | |
ffd3cdcc | 3305 | table_size = table->table_ops->size_get(table->priv); |
ae0be8de | 3306 | table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1555d204 AS |
3307 | if (!table_attr) |
3308 | return -EMSGSIZE; | |
3309 | ||
3310 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 3311 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
3312 | DEVLINK_ATTR_PAD)) |
3313 | goto nla_put_failure; | |
3314 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
3315 | table->counters_enabled)) | |
3316 | goto nla_put_failure; | |
3317 | ||
56dc7cd0 | 3318 | if (table->resource_valid) { |
3d18e4f1 AS |
3319 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
3320 | table->resource_id, DEVLINK_ATTR_PAD) || | |
3321 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
3322 | table->resource_units, DEVLINK_ATTR_PAD)) | |
3323 | goto nla_put_failure; | |
56dc7cd0 | 3324 | } |
1555d204 AS |
3325 | if (devlink_dpipe_matches_put(table, skb)) |
3326 | goto nla_put_failure; | |
3327 | ||
3328 | if (devlink_dpipe_actions_put(table, skb)) | |
3329 | goto nla_put_failure; | |
3330 | ||
3331 | nla_nest_end(skb, table_attr); | |
3332 | return 0; | |
3333 | ||
3334 | nla_put_failure: | |
3335 | nla_nest_cancel(skb, table_attr); | |
3336 | return -EMSGSIZE; | |
3337 | } | |
3338 | ||
3339 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
3340 | struct genl_info *info) | |
3341 | { | |
3342 | int err; | |
3343 | ||
3344 | if (*pskb) { | |
3345 | err = genlmsg_reply(*pskb, info); | |
3346 | if (err) | |
3347 | return err; | |
3348 | } | |
3349 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3350 | if (!*pskb) | |
3351 | return -ENOMEM; | |
3352 | return 0; | |
3353 | } | |
3354 | ||
3355 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
3356 | enum devlink_command cmd, int flags, | |
3357 | struct list_head *dpipe_tables, | |
3358 | const char *table_name) | |
3359 | { | |
3360 | struct devlink *devlink = info->user_ptr[0]; | |
3361 | struct devlink_dpipe_table *table; | |
3362 | struct nlattr *tables_attr; | |
3363 | struct sk_buff *skb = NULL; | |
3364 | struct nlmsghdr *nlh; | |
3365 | bool incomplete; | |
3366 | void *hdr; | |
3367 | int i; | |
3368 | int err; | |
3369 | ||
3370 | table = list_first_entry(dpipe_tables, | |
3371 | struct devlink_dpipe_table, list); | |
3372 | start_again: | |
3373 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3374 | if (err) | |
3375 | return err; | |
3376 | ||
3377 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3378 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3379 | if (!hdr) { |
3380 | nlmsg_free(skb); | |
1555d204 | 3381 | return -EMSGSIZE; |
6044bd4a | 3382 | } |
1555d204 AS |
3383 | |
3384 | if (devlink_nl_put_handle(skb, devlink)) | |
3385 | goto nla_put_failure; | |
ae0be8de | 3386 | tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES); |
1555d204 AS |
3387 | if (!tables_attr) |
3388 | goto nla_put_failure; | |
3389 | ||
3390 | i = 0; | |
3391 | incomplete = false; | |
3392 | list_for_each_entry_from(table, dpipe_tables, list) { | |
3393 | if (!table_name) { | |
3394 | err = devlink_dpipe_table_put(skb, table); | |
3395 | if (err) { | |
3396 | if (!i) | |
3397 | goto err_table_put; | |
3398 | incomplete = true; | |
3399 | break; | |
3400 | } | |
3401 | } else { | |
3402 | if (!strcmp(table->name, table_name)) { | |
3403 | err = devlink_dpipe_table_put(skb, table); | |
3404 | if (err) | |
3405 | break; | |
3406 | } | |
3407 | } | |
3408 | i++; | |
3409 | } | |
3410 | ||
3411 | nla_nest_end(skb, tables_attr); | |
3412 | genlmsg_end(skb, hdr); | |
3413 | if (incomplete) | |
3414 | goto start_again; | |
3415 | ||
3416 | send_done: | |
3417 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3418 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3419 | if (!nlh) { | |
3420 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3421 | if (err) | |
7fe4d6dc | 3422 | return err; |
1555d204 AS |
3423 | goto send_done; |
3424 | } | |
3425 | ||
3426 | return genlmsg_reply(skb, info); | |
3427 | ||
3428 | nla_put_failure: | |
3429 | err = -EMSGSIZE; | |
3430 | err_table_put: | |
1555d204 AS |
3431 | nlmsg_free(skb); |
3432 | return err; | |
3433 | } | |
3434 | ||
3435 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
3436 | struct genl_info *info) | |
3437 | { | |
3438 | struct devlink *devlink = info->user_ptr[0]; | |
3439 | const char *table_name = NULL; | |
3440 | ||
3441 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3442 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3443 | ||
3444 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
3445 | &devlink->dpipe_table_list, | |
3446 | table_name); | |
3447 | } | |
3448 | ||
3449 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
3450 | struct devlink_dpipe_value *value) | |
3451 | { | |
3452 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
3453 | value->value_size, value->value)) | |
3454 | return -EMSGSIZE; | |
3455 | if (value->mask) | |
3456 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
3457 | value->value_size, value->mask)) | |
3458 | return -EMSGSIZE; | |
3459 | if (value->mapping_valid) | |
3460 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
3461 | value->mapping_value)) | |
3462 | return -EMSGSIZE; | |
3463 | return 0; | |
3464 | } | |
3465 | ||
3466 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
3467 | struct devlink_dpipe_value *value) | |
3468 | { | |
3469 | if (!value->action) | |
3470 | return -EINVAL; | |
3471 | if (devlink_dpipe_action_put(skb, value->action)) | |
3472 | return -EMSGSIZE; | |
3473 | if (devlink_dpipe_value_put(skb, value)) | |
3474 | return -EMSGSIZE; | |
3475 | return 0; | |
3476 | } | |
3477 | ||
3478 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
3479 | struct devlink_dpipe_value *values, | |
3480 | unsigned int values_count) | |
3481 | { | |
3482 | struct nlattr *action_attr; | |
3483 | int i; | |
3484 | int err; | |
3485 | ||
3486 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3487 | action_attr = nla_nest_start_noflag(skb, |
3488 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1555d204 AS |
3489 | if (!action_attr) |
3490 | return -EMSGSIZE; | |
3491 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
3492 | if (err) | |
3493 | goto err_action_value_put; | |
3494 | nla_nest_end(skb, action_attr); | |
3495 | } | |
3496 | return 0; | |
3497 | ||
3498 | err_action_value_put: | |
3499 | nla_nest_cancel(skb, action_attr); | |
3500 | return err; | |
3501 | } | |
3502 | ||
3503 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
3504 | struct devlink_dpipe_value *value) | |
3505 | { | |
3506 | if (!value->match) | |
3507 | return -EINVAL; | |
3508 | if (devlink_dpipe_match_put(skb, value->match)) | |
3509 | return -EMSGSIZE; | |
3510 | if (devlink_dpipe_value_put(skb, value)) | |
3511 | return -EMSGSIZE; | |
3512 | return 0; | |
3513 | } | |
3514 | ||
3515 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
3516 | struct devlink_dpipe_value *values, | |
3517 | unsigned int values_count) | |
3518 | { | |
3519 | struct nlattr *match_attr; | |
3520 | int i; | |
3521 | int err; | |
3522 | ||
3523 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3524 | match_attr = nla_nest_start_noflag(skb, |
3525 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1555d204 AS |
3526 | if (!match_attr) |
3527 | return -EMSGSIZE; | |
3528 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
3529 | if (err) | |
3530 | goto err_match_value_put; | |
3531 | nla_nest_end(skb, match_attr); | |
3532 | } | |
3533 | return 0; | |
3534 | ||
3535 | err_match_value_put: | |
3536 | nla_nest_cancel(skb, match_attr); | |
3537 | return err; | |
3538 | } | |
3539 | ||
3540 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
3541 | struct devlink_dpipe_entry *entry) | |
3542 | { | |
3543 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
3544 | int err; | |
3545 | ||
ae0be8de | 3546 | entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
1555d204 AS |
3547 | if (!entry_attr) |
3548 | return -EMSGSIZE; | |
3549 | ||
3550 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
3551 | DEVLINK_ATTR_PAD)) | |
3552 | goto nla_put_failure; | |
3553 | if (entry->counter_valid) | |
3554 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
3555 | entry->counter, DEVLINK_ATTR_PAD)) | |
3556 | goto nla_put_failure; | |
3557 | ||
ae0be8de MK |
3558 | matches_attr = nla_nest_start_noflag(skb, |
3559 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1555d204 AS |
3560 | if (!matches_attr) |
3561 | goto nla_put_failure; | |
3562 | ||
3563 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
3564 | entry->match_values_count); | |
3565 | if (err) { | |
3566 | nla_nest_cancel(skb, matches_attr); | |
3567 | goto err_match_values_put; | |
3568 | } | |
3569 | nla_nest_end(skb, matches_attr); | |
3570 | ||
ae0be8de MK |
3571 | actions_attr = nla_nest_start_noflag(skb, |
3572 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1555d204 AS |
3573 | if (!actions_attr) |
3574 | goto nla_put_failure; | |
3575 | ||
3576 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
3577 | entry->action_values_count); | |
3578 | if (err) { | |
3579 | nla_nest_cancel(skb, actions_attr); | |
3580 | goto err_action_values_put; | |
3581 | } | |
3582 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 3583 | |
1555d204 | 3584 | nla_nest_end(skb, entry_attr); |
59bfde01 | 3585 | return 0; |
1555d204 AS |
3586 | |
3587 | nla_put_failure: | |
3588 | err = -EMSGSIZE; | |
3589 | err_match_values_put: | |
3590 | err_action_values_put: | |
3591 | nla_nest_cancel(skb, entry_attr); | |
3592 | return err; | |
3593 | } | |
3594 | ||
3595 | static struct devlink_dpipe_table * | |
3596 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2eb51c75 | 3597 | const char *table_name, struct devlink *devlink) |
1555d204 AS |
3598 | { |
3599 | struct devlink_dpipe_table *table; | |
2eb51c75 MB |
3600 | list_for_each_entry_rcu(table, dpipe_tables, list, |
3601 | lockdep_is_held(&devlink->lock)) { | |
1555d204 AS |
3602 | if (!strcmp(table->name, table_name)) |
3603 | return table; | |
3604 | } | |
3605 | return NULL; | |
3606 | } | |
3607 | ||
3608 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3609 | { | |
3610 | struct devlink *devlink; | |
3611 | int err; | |
3612 | ||
3613 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
3614 | dump_ctx->info); | |
3615 | if (err) | |
3616 | return err; | |
3617 | ||
3618 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
3619 | dump_ctx->info->snd_portid, | |
3620 | dump_ctx->info->snd_seq, | |
3621 | &devlink_nl_family, NLM_F_MULTI, | |
3622 | dump_ctx->cmd); | |
3623 | if (!dump_ctx->hdr) | |
3624 | goto nla_put_failure; | |
3625 | ||
3626 | devlink = dump_ctx->info->user_ptr[0]; | |
3627 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
3628 | goto nla_put_failure; | |
ae0be8de MK |
3629 | dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb, |
3630 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1555d204 AS |
3631 | if (!dump_ctx->nest) |
3632 | goto nla_put_failure; | |
3633 | return 0; | |
3634 | ||
3635 | nla_put_failure: | |
1555d204 AS |
3636 | nlmsg_free(dump_ctx->skb); |
3637 | return -EMSGSIZE; | |
3638 | } | |
3639 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
3640 | ||
3641 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
3642 | struct devlink_dpipe_entry *entry) | |
3643 | { | |
3644 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
3645 | } | |
3646 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
3647 | ||
3648 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3649 | { | |
3650 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
3651 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
3652 | return 0; | |
3653 | } | |
3654 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
3655 | ||
35807324 AS |
3656 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
3657 | ||
3658 | { | |
3659 | unsigned int value_count, value_index; | |
3660 | struct devlink_dpipe_value *value; | |
3661 | ||
3662 | value = entry->action_values; | |
3663 | value_count = entry->action_values_count; | |
3664 | for (value_index = 0; value_index < value_count; value_index++) { | |
3665 | kfree(value[value_index].value); | |
3666 | kfree(value[value_index].mask); | |
3667 | } | |
3668 | ||
3669 | value = entry->match_values; | |
3670 | value_count = entry->match_values_count; | |
3671 | for (value_index = 0; value_index < value_count; value_index++) { | |
3672 | kfree(value[value_index].value); | |
3673 | kfree(value[value_index].mask); | |
3674 | } | |
3675 | } | |
c52ef04d | 3676 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_clear); |
35807324 | 3677 | |
1555d204 AS |
3678 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
3679 | enum devlink_command cmd, int flags, | |
3680 | struct devlink_dpipe_table *table) | |
3681 | { | |
3682 | struct devlink_dpipe_dump_ctx dump_ctx; | |
3683 | struct nlmsghdr *nlh; | |
3684 | int err; | |
3685 | ||
3686 | dump_ctx.skb = NULL; | |
3687 | dump_ctx.cmd = cmd; | |
3688 | dump_ctx.info = info; | |
3689 | ||
3690 | err = table->table_ops->entries_dump(table->priv, | |
3691 | table->counters_enabled, | |
3692 | &dump_ctx); | |
3693 | if (err) | |
7fe4d6dc | 3694 | return err; |
1555d204 AS |
3695 | |
3696 | send_done: | |
3697 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
3698 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3699 | if (!nlh) { | |
3700 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
3701 | if (err) | |
7fe4d6dc | 3702 | return err; |
1555d204 AS |
3703 | goto send_done; |
3704 | } | |
3705 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
3706 | } |
3707 | ||
3708 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
3709 | struct genl_info *info) | |
3710 | { | |
3711 | struct devlink *devlink = info->user_ptr[0]; | |
3712 | struct devlink_dpipe_table *table; | |
3713 | const char *table_name; | |
3714 | ||
1f7633b5 | 3715 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME)) |
1555d204 AS |
3716 | return -EINVAL; |
3717 | ||
3718 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3719 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 3720 | table_name, devlink); |
1555d204 AS |
3721 | if (!table) |
3722 | return -EINVAL; | |
3723 | ||
3724 | if (!table->table_ops->entries_dump) | |
3725 | return -EINVAL; | |
3726 | ||
3727 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
3728 | 0, table); | |
3729 | } | |
3730 | ||
3731 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
3732 | const struct devlink_dpipe_header *header) | |
3733 | { | |
3734 | struct devlink_dpipe_field *field; | |
3735 | struct nlattr *field_attr; | |
3736 | int i; | |
3737 | ||
3738 | for (i = 0; i < header->fields_count; i++) { | |
3739 | field = &header->fields[i]; | |
ae0be8de MK |
3740 | field_attr = nla_nest_start_noflag(skb, |
3741 | DEVLINK_ATTR_DPIPE_FIELD); | |
1555d204 AS |
3742 | if (!field_attr) |
3743 | return -EMSGSIZE; | |
3744 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
3745 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3746 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
3747 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
3748 | goto nla_put_failure; | |
3749 | nla_nest_end(skb, field_attr); | |
3750 | } | |
3751 | return 0; | |
3752 | ||
3753 | nla_put_failure: | |
3754 | nla_nest_cancel(skb, field_attr); | |
3755 | return -EMSGSIZE; | |
3756 | } | |
3757 | ||
3758 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
3759 | struct devlink_dpipe_header *header) | |
3760 | { | |
3761 | struct nlattr *fields_attr, *header_attr; | |
3762 | int err; | |
3763 | ||
ae0be8de | 3764 | header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER); |
cb6bf9cf | 3765 | if (!header_attr) |
1555d204 AS |
3766 | return -EMSGSIZE; |
3767 | ||
3768 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
3769 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3770 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3771 | goto nla_put_failure; | |
3772 | ||
ae0be8de MK |
3773 | fields_attr = nla_nest_start_noflag(skb, |
3774 | DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
1555d204 AS |
3775 | if (!fields_attr) |
3776 | goto nla_put_failure; | |
3777 | ||
3778 | err = devlink_dpipe_fields_put(skb, header); | |
3779 | if (err) { | |
3780 | nla_nest_cancel(skb, fields_attr); | |
3781 | goto nla_put_failure; | |
3782 | } | |
3783 | nla_nest_end(skb, fields_attr); | |
3784 | nla_nest_end(skb, header_attr); | |
3785 | return 0; | |
3786 | ||
3787 | nla_put_failure: | |
3788 | err = -EMSGSIZE; | |
3789 | nla_nest_cancel(skb, header_attr); | |
3790 | return err; | |
3791 | } | |
3792 | ||
3793 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
3794 | enum devlink_command cmd, int flags, | |
3795 | struct devlink_dpipe_headers * | |
3796 | dpipe_headers) | |
3797 | { | |
3798 | struct devlink *devlink = info->user_ptr[0]; | |
3799 | struct nlattr *headers_attr; | |
3800 | struct sk_buff *skb = NULL; | |
3801 | struct nlmsghdr *nlh; | |
3802 | void *hdr; | |
3803 | int i, j; | |
3804 | int err; | |
3805 | ||
3806 | i = 0; | |
3807 | start_again: | |
3808 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3809 | if (err) | |
3810 | return err; | |
3811 | ||
3812 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3813 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3814 | if (!hdr) { |
3815 | nlmsg_free(skb); | |
1555d204 | 3816 | return -EMSGSIZE; |
6044bd4a | 3817 | } |
1555d204 AS |
3818 | |
3819 | if (devlink_nl_put_handle(skb, devlink)) | |
3820 | goto nla_put_failure; | |
ae0be8de | 3821 | headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
1555d204 AS |
3822 | if (!headers_attr) |
3823 | goto nla_put_failure; | |
3824 | ||
3825 | j = 0; | |
3826 | for (; i < dpipe_headers->headers_count; i++) { | |
3827 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
3828 | if (err) { | |
3829 | if (!j) | |
3830 | goto err_table_put; | |
3831 | break; | |
3832 | } | |
3833 | j++; | |
3834 | } | |
3835 | nla_nest_end(skb, headers_attr); | |
3836 | genlmsg_end(skb, hdr); | |
3837 | if (i != dpipe_headers->headers_count) | |
3838 | goto start_again; | |
3839 | ||
3840 | send_done: | |
3841 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3842 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3843 | if (!nlh) { | |
3844 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3845 | if (err) | |
7fe4d6dc | 3846 | return err; |
1555d204 AS |
3847 | goto send_done; |
3848 | } | |
3849 | return genlmsg_reply(skb, info); | |
3850 | ||
3851 | nla_put_failure: | |
3852 | err = -EMSGSIZE; | |
3853 | err_table_put: | |
1555d204 AS |
3854 | nlmsg_free(skb); |
3855 | return err; | |
3856 | } | |
3857 | ||
3858 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
3859 | struct genl_info *info) | |
3860 | { | |
3861 | struct devlink *devlink = info->user_ptr[0]; | |
3862 | ||
3863 | if (!devlink->dpipe_headers) | |
3864 | return -EOPNOTSUPP; | |
3865 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
3866 | 0, devlink->dpipe_headers); | |
3867 | } | |
3868 | ||
3869 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
3870 | const char *table_name, | |
3871 | bool enable) | |
3872 | { | |
3873 | struct devlink_dpipe_table *table; | |
3874 | ||
3875 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 3876 | table_name, devlink); |
1555d204 AS |
3877 | if (!table) |
3878 | return -EINVAL; | |
3879 | ||
3880 | if (table->counter_control_extern) | |
3881 | return -EOPNOTSUPP; | |
3882 | ||
3883 | if (!(table->counters_enabled ^ enable)) | |
3884 | return 0; | |
3885 | ||
3886 | table->counters_enabled = enable; | |
3887 | if (table->table_ops->counters_set_update) | |
3888 | table->table_ops->counters_set_update(table->priv, enable); | |
3889 | return 0; | |
3890 | } | |
3891 | ||
3892 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
3893 | struct genl_info *info) | |
3894 | { | |
3895 | struct devlink *devlink = info->user_ptr[0]; | |
3896 | const char *table_name; | |
3897 | bool counters_enable; | |
3898 | ||
1f7633b5 JK |
3899 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME) || |
3900 | GENL_REQ_ATTR_CHECK(info, | |
3901 | DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED)) | |
1555d204 AS |
3902 | return -EINVAL; |
3903 | ||
3904 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3905 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
3906 | ||
3907 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
3908 | counters_enable); | |
08f4b591 OG |
3909 | } |
3910 | ||
43dd7512 | 3911 | static struct devlink_resource * |
d9f9b9a4 AS |
3912 | devlink_resource_find(struct devlink *devlink, |
3913 | struct devlink_resource *resource, u64 resource_id) | |
3914 | { | |
3915 | struct list_head *resource_list; | |
3916 | ||
3917 | if (resource) | |
3918 | resource_list = &resource->resource_list; | |
3919 | else | |
3920 | resource_list = &devlink->resource_list; | |
3921 | ||
3922 | list_for_each_entry(resource, resource_list, list) { | |
3923 | struct devlink_resource *child_resource; | |
3924 | ||
3925 | if (resource->id == resource_id) | |
3926 | return resource; | |
3927 | ||
3928 | child_resource = devlink_resource_find(devlink, resource, | |
3929 | resource_id); | |
3930 | if (child_resource) | |
3931 | return child_resource; | |
3932 | } | |
3933 | return NULL; | |
3934 | } | |
3935 | ||
43dd7512 WY |
3936 | static void |
3937 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
3938 | { |
3939 | struct devlink_resource *child_resource; | |
3940 | bool size_valid = true; | |
3941 | u64 parts_size = 0; | |
3942 | ||
3943 | if (list_empty(&resource->resource_list)) | |
3944 | goto out; | |
3945 | ||
3946 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
3947 | parts_size += child_resource->size_new; | |
3948 | ||
b9d17175 | 3949 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
3950 | size_valid = false; |
3951 | out: | |
3952 | resource->size_valid = size_valid; | |
3953 | } | |
3954 | ||
cc944ead AS |
3955 | static int |
3956 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
3957 | struct netlink_ext_ack *extack) | |
3958 | { | |
3959 | u64 reminder; | |
3960 | int err = 0; | |
3961 | ||
0f3e9c97 | 3962 | if (size > resource->size_params.size_max) { |
cc944ead AS |
3963 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
3964 | err = -EINVAL; | |
3965 | } | |
3966 | ||
0f3e9c97 | 3967 | if (size < resource->size_params.size_min) { |
cc944ead AS |
3968 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
3969 | err = -EINVAL; | |
3970 | } | |
3971 | ||
0f3e9c97 | 3972 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
3973 | if (reminder) { |
3974 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
3975 | err = -EINVAL; | |
3976 | } | |
3977 | ||
3978 | return err; | |
3979 | } | |
3980 | ||
d9f9b9a4 AS |
3981 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
3982 | struct genl_info *info) | |
3983 | { | |
3984 | struct devlink *devlink = info->user_ptr[0]; | |
3985 | struct devlink_resource *resource; | |
3986 | u64 resource_id; | |
3987 | u64 size; | |
3988 | int err; | |
3989 | ||
1f7633b5 JK |
3990 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_RESOURCE_ID) || |
3991 | GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_RESOURCE_SIZE)) | |
d9f9b9a4 AS |
3992 | return -EINVAL; |
3993 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
3994 | ||
3995 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
3996 | if (!resource) | |
3997 | return -EINVAL; | |
3998 | ||
d9f9b9a4 | 3999 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 4000 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
4001 | if (err) |
4002 | return err; | |
4003 | ||
4004 | resource->size_new = size; | |
4005 | devlink_resource_validate_children(resource); | |
4006 | if (resource->parent) | |
4007 | devlink_resource_validate_children(resource->parent); | |
4008 | return 0; | |
4009 | } | |
4010 | ||
3d18e4f1 | 4011 | static int |
d9f9b9a4 AS |
4012 | devlink_resource_size_params_put(struct devlink_resource *resource, |
4013 | struct sk_buff *skb) | |
4014 | { | |
4015 | struct devlink_resource_size_params *size_params; | |
4016 | ||
77d27096 | 4017 | size_params = &resource->size_params; |
3d18e4f1 AS |
4018 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
4019 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
4020 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
4021 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
4022 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
4023 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
4024 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
4025 | return -EMSGSIZE; | |
4026 | return 0; | |
d9f9b9a4 AS |
4027 | } |
4028 | ||
fc56be47 JP |
4029 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
4030 | struct sk_buff *skb) | |
4031 | { | |
4032 | if (!resource->occ_get) | |
4033 | return 0; | |
4034 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
4035 | resource->occ_get(resource->occ_get_priv), | |
4036 | DEVLINK_ATTR_PAD); | |
4037 | } | |
4038 | ||
d9f9b9a4 AS |
4039 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
4040 | struct devlink_resource *resource) | |
4041 | { | |
4042 | struct devlink_resource *child_resource; | |
4043 | struct nlattr *child_resource_attr; | |
4044 | struct nlattr *resource_attr; | |
4045 | ||
ae0be8de | 4046 | resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE); |
d9f9b9a4 AS |
4047 | if (!resource_attr) |
4048 | return -EMSGSIZE; | |
4049 | ||
4050 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
4051 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
4052 | DEVLINK_ATTR_PAD) || | |
4053 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
4054 | DEVLINK_ATTR_PAD)) | |
4055 | goto nla_put_failure; | |
5fc11a40 GI |
4056 | if (resource->size != resource->size_new && |
4057 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
4058 | resource->size_new, DEVLINK_ATTR_PAD)) | |
4059 | goto nla_put_failure; | |
fc56be47 JP |
4060 | if (devlink_resource_occ_put(resource, skb)) |
4061 | goto nla_put_failure; | |
3d18e4f1 AS |
4062 | if (devlink_resource_size_params_put(resource, skb)) |
4063 | goto nla_put_failure; | |
d9f9b9a4 AS |
4064 | if (list_empty(&resource->resource_list)) |
4065 | goto out; | |
4066 | ||
4067 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
4068 | resource->size_valid)) | |
4069 | goto nla_put_failure; | |
4070 | ||
ae0be8de MK |
4071 | child_resource_attr = nla_nest_start_noflag(skb, |
4072 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4073 | if (!child_resource_attr) |
4074 | goto nla_put_failure; | |
4075 | ||
4076 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
4077 | if (devlink_resource_put(devlink, skb, child_resource)) | |
4078 | goto resource_put_failure; | |
4079 | } | |
4080 | ||
4081 | nla_nest_end(skb, child_resource_attr); | |
4082 | out: | |
4083 | nla_nest_end(skb, resource_attr); | |
4084 | return 0; | |
4085 | ||
4086 | resource_put_failure: | |
4087 | nla_nest_cancel(skb, child_resource_attr); | |
4088 | nla_put_failure: | |
4089 | nla_nest_cancel(skb, resource_attr); | |
4090 | return -EMSGSIZE; | |
4091 | } | |
4092 | ||
4093 | static int devlink_resource_fill(struct genl_info *info, | |
4094 | enum devlink_command cmd, int flags) | |
4095 | { | |
4096 | struct devlink *devlink = info->user_ptr[0]; | |
4097 | struct devlink_resource *resource; | |
4098 | struct nlattr *resources_attr; | |
4099 | struct sk_buff *skb = NULL; | |
4100 | struct nlmsghdr *nlh; | |
4101 | bool incomplete; | |
4102 | void *hdr; | |
4103 | int i; | |
4104 | int err; | |
4105 | ||
4106 | resource = list_first_entry(&devlink->resource_list, | |
4107 | struct devlink_resource, list); | |
4108 | start_again: | |
4109 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4110 | if (err) | |
4111 | return err; | |
4112 | ||
4113 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4114 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
4115 | if (!hdr) { | |
4116 | nlmsg_free(skb); | |
4117 | return -EMSGSIZE; | |
4118 | } | |
4119 | ||
4120 | if (devlink_nl_put_handle(skb, devlink)) | |
4121 | goto nla_put_failure; | |
4122 | ||
ae0be8de MK |
4123 | resources_attr = nla_nest_start_noflag(skb, |
4124 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4125 | if (!resources_attr) |
4126 | goto nla_put_failure; | |
4127 | ||
4128 | incomplete = false; | |
4129 | i = 0; | |
4130 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
4131 | err = devlink_resource_put(devlink, skb, resource); | |
4132 | if (err) { | |
4133 | if (!i) | |
4134 | goto err_resource_put; | |
4135 | incomplete = true; | |
4136 | break; | |
4137 | } | |
4138 | i++; | |
4139 | } | |
4140 | nla_nest_end(skb, resources_attr); | |
4141 | genlmsg_end(skb, hdr); | |
4142 | if (incomplete) | |
4143 | goto start_again; | |
4144 | send_done: | |
4145 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4146 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4147 | if (!nlh) { | |
4148 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4149 | if (err) | |
83fe9a96 | 4150 | return err; |
d9f9b9a4 AS |
4151 | goto send_done; |
4152 | } | |
4153 | return genlmsg_reply(skb, info); | |
4154 | ||
4155 | nla_put_failure: | |
4156 | err = -EMSGSIZE; | |
4157 | err_resource_put: | |
d9f9b9a4 AS |
4158 | nlmsg_free(skb); |
4159 | return err; | |
4160 | } | |
4161 | ||
4162 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
4163 | struct genl_info *info) | |
4164 | { | |
4165 | struct devlink *devlink = info->user_ptr[0]; | |
4166 | ||
4167 | if (list_empty(&devlink->resource_list)) | |
4168 | return -EOPNOTSUPP; | |
4169 | ||
4170 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
4171 | } | |
4172 | ||
2d8dc5bb AS |
4173 | static int |
4174 | devlink_resources_validate(struct devlink *devlink, | |
4175 | struct devlink_resource *resource, | |
4176 | struct genl_info *info) | |
4177 | { | |
4178 | struct list_head *resource_list; | |
4179 | int err = 0; | |
4180 | ||
4181 | if (resource) | |
4182 | resource_list = &resource->resource_list; | |
4183 | else | |
4184 | resource_list = &devlink->resource_list; | |
4185 | ||
4186 | list_for_each_entry(resource, resource_list, list) { | |
4187 | if (!resource->size_valid) | |
4188 | return -EINVAL; | |
4189 | err = devlink_resources_validate(devlink, resource, info); | |
4190 | if (err) | |
4191 | return err; | |
4192 | } | |
4193 | return err; | |
4194 | } | |
4195 | ||
070c63f2 JP |
4196 | static struct net *devlink_netns_get(struct sk_buff *skb, |
4197 | struct genl_info *info) | |
4198 | { | |
4199 | struct nlattr *netns_pid_attr = info->attrs[DEVLINK_ATTR_NETNS_PID]; | |
4200 | struct nlattr *netns_fd_attr = info->attrs[DEVLINK_ATTR_NETNS_FD]; | |
4201 | struct nlattr *netns_id_attr = info->attrs[DEVLINK_ATTR_NETNS_ID]; | |
4202 | struct net *net; | |
4203 | ||
4204 | if (!!netns_pid_attr + !!netns_fd_attr + !!netns_id_attr > 1) { | |
054eae82 | 4205 | NL_SET_ERR_MSG_MOD(info->extack, "multiple netns identifying attributes specified"); |
070c63f2 JP |
4206 | return ERR_PTR(-EINVAL); |
4207 | } | |
4208 | ||
4209 | if (netns_pid_attr) { | |
4210 | net = get_net_ns_by_pid(nla_get_u32(netns_pid_attr)); | |
4211 | } else if (netns_fd_attr) { | |
4212 | net = get_net_ns_by_fd(nla_get_u32(netns_fd_attr)); | |
4213 | } else if (netns_id_attr) { | |
4214 | net = get_net_ns_by_id(sock_net(skb->sk), | |
4215 | nla_get_u32(netns_id_attr)); | |
4216 | if (!net) | |
4217 | net = ERR_PTR(-EINVAL); | |
4218 | } else { | |
4219 | WARN_ON(1); | |
4220 | net = ERR_PTR(-EINVAL); | |
4221 | } | |
4222 | if (IS_ERR(net)) { | |
054eae82 | 4223 | NL_SET_ERR_MSG_MOD(info->extack, "Unknown network namespace"); |
070c63f2 JP |
4224 | return ERR_PTR(-EINVAL); |
4225 | } | |
4226 | if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { | |
4227 | put_net(net); | |
4228 | return ERR_PTR(-EPERM); | |
4229 | } | |
4230 | return net; | |
4231 | } | |
4232 | ||
4233 | static void devlink_param_notify(struct devlink *devlink, | |
4234 | unsigned int port_index, | |
4235 | struct devlink_param_item *param_item, | |
4236 | enum devlink_command cmd); | |
4237 | ||
7d7e9169 JP |
4238 | static void devlink_reload_netns_change(struct devlink *devlink, |
4239 | struct net *curr_net, | |
4240 | struct net *dest_net) | |
070c63f2 JP |
4241 | { |
4242 | struct devlink_param_item *param_item; | |
4243 | ||
4244 | /* Userspace needs to be notified about devlink objects | |
4245 | * removed from original and entering new network namespace. | |
4246 | * The rest of the devlink objects are re-created during | |
4247 | * reload process so the notifications are generated separatelly. | |
4248 | */ | |
4249 | ||
7d7e9169 JP |
4250 | list_for_each_entry(param_item, &devlink->param_list, list) |
4251 | devlink_param_notify(devlink, 0, param_item, | |
4252 | DEVLINK_CMD_PARAM_DEL); | |
4253 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
070c63f2 | 4254 | |
7d7e9169 JP |
4255 | move_netdevice_notifier_net(curr_net, dest_net, |
4256 | &devlink->netdevice_nb); | |
4257 | write_pnet(&devlink->_net, dest_net); | |
070c63f2 | 4258 | |
7d7e9169 | 4259 | devlink_notify(devlink, DEVLINK_CMD_NEW); |
070c63f2 | 4260 | list_for_each_entry(param_item, &devlink->param_list, list) |
7d7e9169 JP |
4261 | devlink_param_notify(devlink, 0, param_item, |
4262 | DEVLINK_CMD_PARAM_NEW); | |
070c63f2 JP |
4263 | } |
4264 | ||
2670ac26 JP |
4265 | static void devlink_reload_failed_set(struct devlink *devlink, |
4266 | bool reload_failed) | |
4267 | { | |
4268 | if (devlink->reload_failed == reload_failed) | |
4269 | return; | |
4270 | devlink->reload_failed = reload_failed; | |
4271 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4272 | } | |
4273 | ||
4274 | bool devlink_is_reload_failed(const struct devlink *devlink) | |
4275 | { | |
4276 | return devlink->reload_failed; | |
4277 | } | |
4278 | EXPORT_SYMBOL_GPL(devlink_is_reload_failed); | |
4279 | ||
a254c264 MS |
4280 | static void |
4281 | __devlink_reload_stats_update(struct devlink *devlink, u32 *reload_stats, | |
4282 | enum devlink_reload_limit limit, u32 actions_performed) | |
4283 | { | |
4284 | unsigned long actions = actions_performed; | |
4285 | int stat_idx; | |
4286 | int action; | |
4287 | ||
4288 | for_each_set_bit(action, &actions, __DEVLINK_RELOAD_ACTION_MAX) { | |
4289 | stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; | |
4290 | reload_stats[stat_idx]++; | |
4291 | } | |
4292 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4293 | } | |
4294 | ||
4295 | static void | |
4296 | devlink_reload_stats_update(struct devlink *devlink, enum devlink_reload_limit limit, | |
4297 | u32 actions_performed) | |
4298 | { | |
4299 | __devlink_reload_stats_update(devlink, devlink->stats.reload_stats, limit, | |
4300 | actions_performed); | |
4301 | } | |
4302 | ||
77069ba2 MS |
4303 | /** |
4304 | * devlink_remote_reload_actions_performed - Update devlink on reload actions | |
4305 | * performed which are not a direct result of devlink reload call. | |
4306 | * | |
4307 | * This should be called by a driver after performing reload actions in case it was not | |
4308 | * a result of devlink reload call. For example fw_activate was performed as a result | |
4309 | * of devlink reload triggered fw_activate on another host. | |
4310 | * The motivation for this function is to keep data on reload actions performed on this | |
4311 | * function whether it was done due to direct devlink reload call or not. | |
4312 | * | |
4313 | * @devlink: devlink | |
4314 | * @limit: reload limit | |
4315 | * @actions_performed: bitmask of actions performed | |
4316 | */ | |
4317 | void devlink_remote_reload_actions_performed(struct devlink *devlink, | |
4318 | enum devlink_reload_limit limit, | |
4319 | u32 actions_performed) | |
4320 | { | |
4321 | if (WARN_ON(!actions_performed || | |
4322 | actions_performed & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
4323 | actions_performed >= BIT(__DEVLINK_RELOAD_ACTION_MAX) || | |
4324 | limit > DEVLINK_RELOAD_LIMIT_MAX)) | |
4325 | return; | |
4326 | ||
4327 | __devlink_reload_stats_update(devlink, devlink->stats.remote_reload_stats, limit, | |
4328 | actions_performed); | |
4329 | } | |
4330 | EXPORT_SYMBOL_GPL(devlink_remote_reload_actions_performed); | |
4331 | ||
687125b5 JK |
4332 | int devlink_reload(struct devlink *devlink, struct net *dest_net, |
4333 | enum devlink_reload_action action, | |
4334 | enum devlink_reload_limit limit, | |
4335 | u32 *actions_performed, struct netlink_ext_ack *extack) | |
070c63f2 | 4336 | { |
77069ba2 | 4337 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; |
05a7f4a8 | 4338 | struct net *curr_net; |
070c63f2 JP |
4339 | int err; |
4340 | ||
77069ba2 MS |
4341 | memcpy(remote_reload_stats, devlink->stats.remote_reload_stats, |
4342 | sizeof(remote_reload_stats)); | |
05a7f4a8 | 4343 | |
dc64cc7c | 4344 | err = devlink->ops->reload_down(devlink, !!dest_net, action, limit, extack); |
070c63f2 JP |
4345 | if (err) |
4346 | return err; | |
4347 | ||
7d7e9169 JP |
4348 | curr_net = devlink_net(devlink); |
4349 | if (dest_net && !net_eq(dest_net, curr_net)) | |
4350 | devlink_reload_netns_change(devlink, curr_net, dest_net); | |
070c63f2 | 4351 | |
dc64cc7c | 4352 | err = devlink->ops->reload_up(devlink, action, limit, actions_performed, extack); |
070c63f2 | 4353 | devlink_reload_failed_set(devlink, !!err); |
ccdf0721 MS |
4354 | if (err) |
4355 | return err; | |
4356 | ||
4357 | WARN_ON(!(*actions_performed & BIT(action))); | |
77069ba2 MS |
4358 | /* Catch driver on updating the remote action within devlink reload */ |
4359 | WARN_ON(memcmp(remote_reload_stats, devlink->stats.remote_reload_stats, | |
4360 | sizeof(remote_reload_stats))); | |
a254c264 | 4361 | devlink_reload_stats_update(devlink, limit, *actions_performed); |
ccdf0721 MS |
4362 | return 0; |
4363 | } | |
4364 | ||
4365 | static int | |
4366 | devlink_nl_reload_actions_performed_snd(struct devlink *devlink, u32 actions_performed, | |
4367 | enum devlink_command cmd, struct genl_info *info) | |
4368 | { | |
4369 | struct sk_buff *msg; | |
4370 | void *hdr; | |
4371 | ||
4372 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4373 | if (!msg) | |
4374 | return -ENOMEM; | |
4375 | ||
4376 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &devlink_nl_family, 0, cmd); | |
4377 | if (!hdr) | |
4378 | goto free_msg; | |
4379 | ||
4380 | if (devlink_nl_put_handle(msg, devlink)) | |
4381 | goto nla_put_failure; | |
4382 | ||
4383 | if (nla_put_bitfield32(msg, DEVLINK_ATTR_RELOAD_ACTIONS_PERFORMED, actions_performed, | |
4384 | actions_performed)) | |
4385 | goto nla_put_failure; | |
4386 | genlmsg_end(msg, hdr); | |
4387 | ||
4388 | return genlmsg_reply(msg, info); | |
4389 | ||
4390 | nla_put_failure: | |
4391 | genlmsg_cancel(msg, hdr); | |
4392 | free_msg: | |
4393 | nlmsg_free(msg); | |
4394 | return -EMSGSIZE; | |
070c63f2 JP |
4395 | } |
4396 | ||
2d8dc5bb AS |
4397 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
4398 | { | |
4399 | struct devlink *devlink = info->user_ptr[0]; | |
ccdf0721 | 4400 | enum devlink_reload_action action; |
dc64cc7c | 4401 | enum devlink_reload_limit limit; |
070c63f2 | 4402 | struct net *dest_net = NULL; |
ccdf0721 | 4403 | u32 actions_performed; |
2d8dc5bb AS |
4404 | int err; |
4405 | ||
82465bec | 4406 | if (!(devlink->features & DEVLINK_F_RELOAD)) |
2d8dc5bb AS |
4407 | return -EOPNOTSUPP; |
4408 | ||
4409 | err = devlink_resources_validate(devlink, NULL, info); | |
4410 | if (err) { | |
4411 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
4412 | return err; | |
4413 | } | |
070c63f2 | 4414 | |
ccdf0721 MS |
4415 | if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION]) |
4416 | action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]); | |
4417 | else | |
4418 | action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT; | |
4419 | ||
4420 | if (!devlink_reload_action_is_supported(devlink, action)) { | |
4421 | NL_SET_ERR_MSG_MOD(info->extack, | |
4422 | "Requested reload action is not supported by the driver"); | |
4423 | return -EOPNOTSUPP; | |
4424 | } | |
4425 | ||
dc64cc7c MS |
4426 | limit = DEVLINK_RELOAD_LIMIT_UNSPEC; |
4427 | if (info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) { | |
4428 | struct nla_bitfield32 limits; | |
4429 | u32 limits_selected; | |
4430 | ||
4431 | limits = nla_get_bitfield32(info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]); | |
4432 | limits_selected = limits.value & limits.selector; | |
4433 | if (!limits_selected) { | |
4434 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid limit selected"); | |
4435 | return -EINVAL; | |
4436 | } | |
4437 | for (limit = 0 ; limit <= DEVLINK_RELOAD_LIMIT_MAX ; limit++) | |
4438 | if (limits_selected & BIT(limit)) | |
4439 | break; | |
4440 | /* UAPI enables multiselection, but currently it is not used */ | |
4441 | if (limits_selected != BIT(limit)) { | |
4442 | NL_SET_ERR_MSG_MOD(info->extack, | |
4443 | "Multiselection of limit is not supported"); | |
4444 | return -EOPNOTSUPP; | |
4445 | } | |
4446 | if (!devlink_reload_limit_is_supported(devlink, limit)) { | |
4447 | NL_SET_ERR_MSG_MOD(info->extack, | |
4448 | "Requested limit is not supported by the driver"); | |
4449 | return -EOPNOTSUPP; | |
4450 | } | |
4451 | if (devlink_reload_combination_is_invalid(action, limit)) { | |
4452 | NL_SET_ERR_MSG_MOD(info->extack, | |
4453 | "Requested limit is invalid for this action"); | |
4454 | return -EINVAL; | |
4455 | } | |
4456 | } | |
4dbb0dad ED |
4457 | if (info->attrs[DEVLINK_ATTR_NETNS_PID] || |
4458 | info->attrs[DEVLINK_ATTR_NETNS_FD] || | |
4459 | info->attrs[DEVLINK_ATTR_NETNS_ID]) { | |
4460 | dest_net = devlink_netns_get(skb, info); | |
4461 | if (IS_ERR(dest_net)) | |
4462 | return PTR_ERR(dest_net); | |
4463 | } | |
4464 | ||
dc64cc7c | 4465 | err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack); |
070c63f2 JP |
4466 | |
4467 | if (dest_net) | |
4468 | put_net(dest_net); | |
4469 | ||
ccdf0721 MS |
4470 | if (err) |
4471 | return err; | |
4472 | /* For backward compatibility generate reply only if attributes used by user */ | |
dc64cc7c | 4473 | if (!info->attrs[DEVLINK_ATTR_RELOAD_ACTION] && !info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) |
ccdf0721 MS |
4474 | return 0; |
4475 | ||
4476 | return devlink_nl_reload_actions_performed_snd(devlink, actions_performed, | |
4477 | DEVLINK_CMD_RELOAD, info); | |
2d8dc5bb AS |
4478 | } |
4479 | ||
191ed202 JP |
4480 | static int devlink_nl_flash_update_fill(struct sk_buff *msg, |
4481 | struct devlink *devlink, | |
4482 | enum devlink_command cmd, | |
6700acc5 | 4483 | struct devlink_flash_notify *params) |
191ed202 JP |
4484 | { |
4485 | void *hdr; | |
4486 | ||
4487 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
4488 | if (!hdr) | |
4489 | return -EMSGSIZE; | |
4490 | ||
4491 | if (devlink_nl_put_handle(msg, devlink)) | |
4492 | goto nla_put_failure; | |
4493 | ||
4494 | if (cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS) | |
4495 | goto out; | |
4496 | ||
6700acc5 | 4497 | if (params->status_msg && |
191ed202 | 4498 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_MSG, |
6700acc5 | 4499 | params->status_msg)) |
191ed202 | 4500 | goto nla_put_failure; |
6700acc5 | 4501 | if (params->component && |
191ed202 | 4502 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, |
6700acc5 | 4503 | params->component)) |
191ed202 JP |
4504 | goto nla_put_failure; |
4505 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_DONE, | |
6700acc5 | 4506 | params->done, DEVLINK_ATTR_PAD)) |
191ed202 JP |
4507 | goto nla_put_failure; |
4508 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, | |
6700acc5 | 4509 | params->total, DEVLINK_ATTR_PAD)) |
191ed202 | 4510 | goto nla_put_failure; |
f92970c6 | 4511 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TIMEOUT, |
6700acc5 | 4512 | params->timeout, DEVLINK_ATTR_PAD)) |
f92970c6 | 4513 | goto nla_put_failure; |
191ed202 JP |
4514 | |
4515 | out: | |
4516 | genlmsg_end(msg, hdr); | |
4517 | return 0; | |
4518 | ||
4519 | nla_put_failure: | |
4520 | genlmsg_cancel(msg, hdr); | |
4521 | return -EMSGSIZE; | |
4522 | } | |
4523 | ||
4524 | static void __devlink_flash_update_notify(struct devlink *devlink, | |
4525 | enum devlink_command cmd, | |
6700acc5 | 4526 | struct devlink_flash_notify *params) |
191ed202 JP |
4527 | { |
4528 | struct sk_buff *msg; | |
4529 | int err; | |
4530 | ||
4531 | WARN_ON(cmd != DEVLINK_CMD_FLASH_UPDATE && | |
4532 | cmd != DEVLINK_CMD_FLASH_UPDATE_END && | |
4533 | cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS); | |
fec1faf2 LR |
4534 | |
4535 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
4536 | return; | |
191ed202 JP |
4537 | |
4538 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4539 | if (!msg) | |
4540 | return; | |
4541 | ||
6700acc5 | 4542 | err = devlink_nl_flash_update_fill(msg, devlink, cmd, params); |
191ed202 JP |
4543 | if (err) |
4544 | goto out_free_msg; | |
4545 | ||
4546 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
4547 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4548 | return; | |
4549 | ||
4550 | out_free_msg: | |
4551 | nlmsg_free(msg); | |
4552 | } | |
4553 | ||
52cc5f3a | 4554 | static void devlink_flash_update_begin_notify(struct devlink *devlink) |
191ed202 | 4555 | { |
ed43fbac | 4556 | struct devlink_flash_notify params = {}; |
6700acc5 | 4557 | |
191ed202 JP |
4558 | __devlink_flash_update_notify(devlink, |
4559 | DEVLINK_CMD_FLASH_UPDATE, | |
6700acc5 | 4560 | ¶ms); |
191ed202 | 4561 | } |
191ed202 | 4562 | |
52cc5f3a | 4563 | static void devlink_flash_update_end_notify(struct devlink *devlink) |
191ed202 | 4564 | { |
ed43fbac | 4565 | struct devlink_flash_notify params = {}; |
6700acc5 | 4566 | |
191ed202 JP |
4567 | __devlink_flash_update_notify(devlink, |
4568 | DEVLINK_CMD_FLASH_UPDATE_END, | |
6700acc5 | 4569 | ¶ms); |
191ed202 | 4570 | } |
191ed202 JP |
4571 | |
4572 | void devlink_flash_update_status_notify(struct devlink *devlink, | |
4573 | const char *status_msg, | |
4574 | const char *component, | |
4575 | unsigned long done, | |
4576 | unsigned long total) | |
4577 | { | |
6700acc5 SN |
4578 | struct devlink_flash_notify params = { |
4579 | .status_msg = status_msg, | |
4580 | .component = component, | |
4581 | .done = done, | |
4582 | .total = total, | |
4583 | }; | |
4584 | ||
191ed202 JP |
4585 | __devlink_flash_update_notify(devlink, |
4586 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4587 | ¶ms); |
191ed202 JP |
4588 | } |
4589 | EXPORT_SYMBOL_GPL(devlink_flash_update_status_notify); | |
4590 | ||
f92970c6 SN |
4591 | void devlink_flash_update_timeout_notify(struct devlink *devlink, |
4592 | const char *status_msg, | |
4593 | const char *component, | |
4594 | unsigned long timeout) | |
4595 | { | |
6700acc5 SN |
4596 | struct devlink_flash_notify params = { |
4597 | .status_msg = status_msg, | |
4598 | .component = component, | |
4599 | .timeout = timeout, | |
4600 | }; | |
4601 | ||
f92970c6 SN |
4602 | __devlink_flash_update_notify(devlink, |
4603 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4604 | ¶ms); |
f92970c6 SN |
4605 | } |
4606 | EXPORT_SYMBOL_GPL(devlink_flash_update_timeout_notify); | |
4607 | ||
f94b6063 JP |
4608 | struct devlink_info_req { |
4609 | struct sk_buff *msg; | |
4610 | void (*version_cb)(const char *version_name, | |
4611 | enum devlink_info_version_type version_type, | |
4612 | void *version_cb_priv); | |
4613 | void *version_cb_priv; | |
4614 | }; | |
4615 | ||
4616 | struct devlink_flash_component_lookup_ctx { | |
4617 | const char *lookup_name; | |
4618 | bool lookup_name_found; | |
4619 | }; | |
4620 | ||
4621 | static void | |
4622 | devlink_flash_component_lookup_cb(const char *version_name, | |
4623 | enum devlink_info_version_type version_type, | |
4624 | void *version_cb_priv) | |
4625 | { | |
4626 | struct devlink_flash_component_lookup_ctx *lookup_ctx = version_cb_priv; | |
4627 | ||
4628 | if (version_type != DEVLINK_INFO_VERSION_TYPE_COMPONENT || | |
4629 | lookup_ctx->lookup_name_found) | |
4630 | return; | |
4631 | ||
4632 | lookup_ctx->lookup_name_found = | |
4633 | !strcmp(lookup_ctx->lookup_name, version_name); | |
4634 | } | |
4635 | ||
4636 | static int devlink_flash_component_get(struct devlink *devlink, | |
4637 | struct nlattr *nla_component, | |
4638 | const char **p_component, | |
4639 | struct netlink_ext_ack *extack) | |
4640 | { | |
4641 | struct devlink_flash_component_lookup_ctx lookup_ctx = {}; | |
4642 | struct devlink_info_req req = {}; | |
4643 | const char *component; | |
4644 | int ret; | |
4645 | ||
4646 | if (!nla_component) | |
4647 | return 0; | |
4648 | ||
4649 | component = nla_data(nla_component); | |
4650 | ||
4651 | if (!devlink->ops->info_get) { | |
4652 | NL_SET_ERR_MSG_ATTR(extack, nla_component, | |
4653 | "component update is not supported by this device"); | |
4654 | return -EOPNOTSUPP; | |
4655 | } | |
4656 | ||
4657 | lookup_ctx.lookup_name = component; | |
4658 | req.version_cb = devlink_flash_component_lookup_cb; | |
4659 | req.version_cb_priv = &lookup_ctx; | |
4660 | ||
4661 | ret = devlink->ops->info_get(devlink, &req, NULL); | |
4662 | if (ret) | |
4663 | return ret; | |
4664 | ||
4665 | if (!lookup_ctx.lookup_name_found) { | |
4666 | NL_SET_ERR_MSG_ATTR(extack, nla_component, | |
4667 | "selected component is not supported by this device"); | |
4668 | return -EINVAL; | |
4669 | } | |
4670 | *p_component = component; | |
4671 | return 0; | |
4672 | } | |
4673 | ||
76726ccb JK |
4674 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
4675 | struct genl_info *info) | |
4676 | { | |
f94b6063 | 4677 | struct nlattr *nla_overwrite_mask, *nla_file_name; |
bc75c054 | 4678 | struct devlink_flash_update_params params = {}; |
76726ccb | 4679 | struct devlink *devlink = info->user_ptr[0]; |
b44cfd4f | 4680 | const char *file_name; |
22ec3d23 | 4681 | u32 supported_params; |
b44cfd4f | 4682 | int ret; |
76726ccb JK |
4683 | |
4684 | if (!devlink->ops->flash_update) | |
4685 | return -EOPNOTSUPP; | |
4686 | ||
1f7633b5 | 4687 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME)) |
76726ccb | 4688 | return -EINVAL; |
22ec3d23 | 4689 | |
f94b6063 JP |
4690 | ret = devlink_flash_component_get(devlink, |
4691 | info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT], | |
4692 | ¶ms.component, info->extack); | |
4693 | if (ret) | |
4694 | return ret; | |
22ec3d23 | 4695 | |
f94b6063 | 4696 | supported_params = devlink->ops->supported_flash_update_params; |
76726ccb | 4697 | |
5d5b4128 JK |
4698 | nla_overwrite_mask = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK]; |
4699 | if (nla_overwrite_mask) { | |
4700 | struct nla_bitfield32 sections; | |
4701 | ||
4702 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK)) { | |
4703 | NL_SET_ERR_MSG_ATTR(info->extack, nla_overwrite_mask, | |
4704 | "overwrite settings are not supported by this device"); | |
4705 | return -EOPNOTSUPP; | |
4706 | } | |
4707 | sections = nla_get_bitfield32(nla_overwrite_mask); | |
4708 | params.overwrite_mask = sections.value & sections.selector; | |
4709 | } | |
4710 | ||
b44cfd4f JK |
4711 | nla_file_name = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]; |
4712 | file_name = nla_data(nla_file_name); | |
4713 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); | |
4714 | if (ret) { | |
4715 | NL_SET_ERR_MSG_ATTR(info->extack, nla_file_name, "failed to locate the requested firmware file"); | |
4716 | return ret; | |
4717 | } | |
4718 | ||
52cc5f3a | 4719 | devlink_flash_update_begin_notify(devlink); |
b44cfd4f | 4720 | ret = devlink->ops->flash_update(devlink, ¶ms, info->extack); |
52cc5f3a | 4721 | devlink_flash_update_end_notify(devlink); |
b44cfd4f JK |
4722 | |
4723 | release_firmware(params.fw); | |
4724 | ||
4725 | return ret; | |
76726ccb JK |
4726 | } |
4727 | ||
08f588fa VG |
4728 | static int |
4729 | devlink_nl_selftests_fill(struct sk_buff *msg, struct devlink *devlink, | |
4730 | u32 portid, u32 seq, int flags, | |
4731 | struct netlink_ext_ack *extack) | |
4732 | { | |
4733 | struct nlattr *selftests; | |
4734 | void *hdr; | |
4735 | int err; | |
4736 | int i; | |
4737 | ||
4738 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, | |
4739 | DEVLINK_CMD_SELFTESTS_GET); | |
4740 | if (!hdr) | |
4741 | return -EMSGSIZE; | |
4742 | ||
4743 | err = -EMSGSIZE; | |
4744 | if (devlink_nl_put_handle(msg, devlink)) | |
4745 | goto err_cancel_msg; | |
4746 | ||
4747 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
4748 | if (!selftests) | |
4749 | goto err_cancel_msg; | |
4750 | ||
4751 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
4752 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
4753 | if (devlink->ops->selftest_check(devlink, i, extack)) { | |
4754 | err = nla_put_flag(msg, i); | |
4755 | if (err) | |
4756 | goto err_cancel_msg; | |
4757 | } | |
4758 | } | |
4759 | ||
4760 | nla_nest_end(msg, selftests); | |
4761 | genlmsg_end(msg, hdr); | |
4762 | return 0; | |
4763 | ||
4764 | err_cancel_msg: | |
4765 | genlmsg_cancel(msg, hdr); | |
4766 | return err; | |
4767 | } | |
4768 | ||
4769 | static int devlink_nl_cmd_selftests_get_doit(struct sk_buff *skb, | |
4770 | struct genl_info *info) | |
4771 | { | |
4772 | struct devlink *devlink = info->user_ptr[0]; | |
4773 | struct sk_buff *msg; | |
4774 | int err; | |
4775 | ||
4776 | if (!devlink->ops->selftest_check) | |
4777 | return -EOPNOTSUPP; | |
4778 | ||
4779 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4780 | if (!msg) | |
4781 | return -ENOMEM; | |
4782 | ||
4783 | err = devlink_nl_selftests_fill(msg, devlink, info->snd_portid, | |
4784 | info->snd_seq, 0, info->extack); | |
4785 | if (err) { | |
4786 | nlmsg_free(msg); | |
4787 | return err; | |
4788 | } | |
4789 | ||
4790 | return genlmsg_reply(msg, info); | |
4791 | } | |
4792 | ||
5ce76d78 JK |
4793 | static int |
4794 | devlink_nl_cmd_selftests_get_dump_one(struct sk_buff *msg, | |
4795 | struct devlink *devlink, | |
4796 | struct netlink_callback *cb) | |
08f588fa | 4797 | { |
5ce76d78 JK |
4798 | if (!devlink->ops->selftest_check) |
4799 | return 0; | |
08f588fa | 4800 | |
5ce76d78 JK |
4801 | return devlink_nl_selftests_fill(msg, devlink, |
4802 | NETLINK_CB(cb->skb).portid, | |
4803 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4804 | cb->extack); | |
08f588fa VG |
4805 | } |
4806 | ||
5ce76d78 JK |
4807 | const struct devlink_gen_cmd devl_gen_selftests = { |
4808 | .dump_one = devlink_nl_cmd_selftests_get_dump_one, | |
4809 | }; | |
4810 | ||
08f588fa VG |
4811 | static int devlink_selftest_result_put(struct sk_buff *skb, unsigned int id, |
4812 | enum devlink_selftest_status test_status) | |
4813 | { | |
4814 | struct nlattr *result_attr; | |
4815 | ||
4816 | result_attr = nla_nest_start(skb, DEVLINK_ATTR_SELFTEST_RESULT); | |
4817 | if (!result_attr) | |
4818 | return -EMSGSIZE; | |
4819 | ||
4820 | if (nla_put_u32(skb, DEVLINK_ATTR_SELFTEST_RESULT_ID, id) || | |
4821 | nla_put_u8(skb, DEVLINK_ATTR_SELFTEST_RESULT_STATUS, | |
4822 | test_status)) | |
4823 | goto nla_put_failure; | |
4824 | ||
4825 | nla_nest_end(skb, result_attr); | |
4826 | return 0; | |
4827 | ||
4828 | nla_put_failure: | |
4829 | nla_nest_cancel(skb, result_attr); | |
4830 | return -EMSGSIZE; | |
4831 | } | |
4832 | ||
4833 | static int devlink_nl_cmd_selftests_run(struct sk_buff *skb, | |
4834 | struct genl_info *info) | |
4835 | { | |
4836 | struct nlattr *tb[DEVLINK_ATTR_SELFTEST_ID_MAX + 1]; | |
4837 | struct devlink *devlink = info->user_ptr[0]; | |
4838 | struct nlattr *attrs, *selftests; | |
4839 | struct sk_buff *msg; | |
4840 | void *hdr; | |
4841 | int err; | |
4842 | int i; | |
4843 | ||
4844 | if (!devlink->ops->selftest_run || !devlink->ops->selftest_check) | |
4845 | return -EOPNOTSUPP; | |
4846 | ||
1f7633b5 | 4847 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SELFTESTS)) |
08f588fa | 4848 | return -EINVAL; |
08f588fa VG |
4849 | |
4850 | attrs = info->attrs[DEVLINK_ATTR_SELFTESTS]; | |
4851 | ||
4852 | err = nla_parse_nested(tb, DEVLINK_ATTR_SELFTEST_ID_MAX, attrs, | |
4853 | devlink_selftest_nl_policy, info->extack); | |
4854 | if (err < 0) | |
4855 | return err; | |
4856 | ||
4857 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4858 | if (!msg) | |
4859 | return -ENOMEM; | |
4860 | ||
4861 | err = -EMSGSIZE; | |
4862 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, | |
4863 | &devlink_nl_family, 0, DEVLINK_CMD_SELFTESTS_RUN); | |
4864 | if (!hdr) | |
4865 | goto free_msg; | |
4866 | ||
4867 | if (devlink_nl_put_handle(msg, devlink)) | |
4868 | goto genlmsg_cancel; | |
4869 | ||
4870 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
4871 | if (!selftests) | |
4872 | goto genlmsg_cancel; | |
4873 | ||
4874 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
4875 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
4876 | enum devlink_selftest_status test_status; | |
4877 | ||
4878 | if (nla_get_flag(tb[i])) { | |
4879 | if (!devlink->ops->selftest_check(devlink, i, | |
4880 | info->extack)) { | |
4881 | if (devlink_selftest_result_put(msg, i, | |
4882 | DEVLINK_SELFTEST_STATUS_SKIP)) | |
4883 | goto selftests_nest_cancel; | |
4884 | continue; | |
4885 | } | |
4886 | ||
4887 | test_status = devlink->ops->selftest_run(devlink, i, | |
4888 | info->extack); | |
4889 | if (devlink_selftest_result_put(msg, i, test_status)) | |
4890 | goto selftests_nest_cancel; | |
4891 | } | |
4892 | } | |
4893 | ||
4894 | nla_nest_end(msg, selftests); | |
4895 | genlmsg_end(msg, hdr); | |
4896 | return genlmsg_reply(msg, info); | |
4897 | ||
4898 | selftests_nest_cancel: | |
4899 | nla_nest_cancel(msg, selftests); | |
4900 | genlmsg_cancel: | |
4901 | genlmsg_cancel(msg, hdr); | |
4902 | free_msg: | |
4903 | nlmsg_free(msg); | |
4904 | return err; | |
4905 | } | |
4906 | ||
036467c3 MS |
4907 | static const struct devlink_param devlink_param_generic[] = { |
4908 | { | |
4909 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
4910 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
4911 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
4912 | }, | |
4913 | { | |
4914 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
4915 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
4916 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
4917 | }, | |
f567bcda VV |
4918 | { |
4919 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
4920 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
4921 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
4922 | }, | |
f6a69885 AV |
4923 | { |
4924 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
4925 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
4926 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
4927 | }, | |
e3b51061 VV |
4928 | { |
4929 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
4930 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
4931 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
4932 | }, | |
f61cba42 VV |
4933 | { |
4934 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
4935 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
4936 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
4937 | }, | |
16511789 VV |
4938 | { |
4939 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
4940 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
4941 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
4942 | }, | |
846e980a ST |
4943 | { |
4944 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
4945 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
4946 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
4947 | }, | |
5bbd21df DM |
4948 | { |
4949 | .id = DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE, | |
4950 | .name = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME, | |
4951 | .type = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE, | |
4952 | }, | |
6c7295e1 MG |
4953 | { |
4954 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, | |
4955 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME, | |
4956 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE, | |
4957 | }, | |
195d9dec MS |
4958 | { |
4959 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, | |
4960 | .name = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME, | |
4961 | .type = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE, | |
4962 | }, | |
f13a5ad8 PP |
4963 | { |
4964 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, | |
4965 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME, | |
4966 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE, | |
4967 | }, | |
8ddaabee PP |
4968 | { |
4969 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, | |
4970 | .name = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME, | |
4971 | .type = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE, | |
4972 | }, | |
076b2a9d PP |
4973 | { |
4974 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, | |
4975 | .name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME, | |
4976 | .type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE, | |
4977 | }, | |
325e0d0a SS |
4978 | { |
4979 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP, | |
4980 | .name = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME, | |
4981 | .type = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE, | |
4982 | }, | |
47402385 SD |
4983 | { |
4984 | .id = DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE, | |
4985 | .name = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME, | |
4986 | .type = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE, | |
4987 | }, | |
0b5705eb SD |
4988 | { |
4989 | .id = DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, | |
4990 | .name = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME, | |
4991 | .type = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE, | |
4992 | }, | |
036467c3 | 4993 | }; |
eabaef18 MS |
4994 | |
4995 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
4996 | { | |
4997 | /* verify it match generic parameter by id and name */ | |
4998 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
4999 | return -EINVAL; | |
5000 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
5001 | return -ENOENT; | |
5002 | ||
5003 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
5004 | ||
5005 | return 0; | |
5006 | } | |
5007 | ||
5008 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
5009 | { | |
5010 | int i; | |
5011 | ||
5012 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
5013 | return -EINVAL; | |
5014 | /* verify no such name in generic params */ | |
5015 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
5016 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
5017 | return -EEXIST; | |
5018 | ||
5019 | return 0; | |
5020 | } | |
5021 | ||
5022 | static struct devlink_param_item * | |
5023 | devlink_param_find_by_name(struct list_head *param_list, | |
5024 | const char *param_name) | |
5025 | { | |
5026 | struct devlink_param_item *param_item; | |
5027 | ||
5028 | list_for_each_entry(param_item, param_list, list) | |
5029 | if (!strcmp(param_item->param->name, param_name)) | |
5030 | return param_item; | |
5031 | return NULL; | |
5032 | } | |
5033 | ||
ec01aeb1 MS |
5034 | static struct devlink_param_item * |
5035 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
5036 | { | |
5037 | struct devlink_param_item *param_item; | |
5038 | ||
5039 | list_for_each_entry(param_item, param_list, list) | |
5040 | if (param_item->param->id == param_id) | |
5041 | return param_item; | |
5042 | return NULL; | |
5043 | } | |
5044 | ||
45f05def MS |
5045 | static bool |
5046 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
5047 | enum devlink_param_cmode cmode) | |
5048 | { | |
5049 | return test_bit(cmode, ¶m->supported_cmodes); | |
5050 | } | |
5051 | ||
5052 | static int devlink_param_get(struct devlink *devlink, | |
5053 | const struct devlink_param *param, | |
5054 | struct devlink_param_gset_ctx *ctx) | |
5055 | { | |
6b4db2e5 | 5056 | if (!param->get || devlink->reload_failed) |
45f05def MS |
5057 | return -EOPNOTSUPP; |
5058 | return param->get(devlink, param->id, ctx); | |
5059 | } | |
5060 | ||
e3b7ca18 MS |
5061 | static int devlink_param_set(struct devlink *devlink, |
5062 | const struct devlink_param *param, | |
5063 | struct devlink_param_gset_ctx *ctx) | |
5064 | { | |
6b4db2e5 | 5065 | if (!param->set || devlink->reload_failed) |
e3b7ca18 MS |
5066 | return -EOPNOTSUPP; |
5067 | return param->set(devlink, param->id, ctx); | |
5068 | } | |
5069 | ||
45f05def MS |
5070 | static int |
5071 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
5072 | { | |
5073 | switch (param_type) { | |
5074 | case DEVLINK_PARAM_TYPE_U8: | |
5075 | return NLA_U8; | |
5076 | case DEVLINK_PARAM_TYPE_U16: | |
5077 | return NLA_U16; | |
5078 | case DEVLINK_PARAM_TYPE_U32: | |
5079 | return NLA_U32; | |
5080 | case DEVLINK_PARAM_TYPE_STRING: | |
5081 | return NLA_STRING; | |
5082 | case DEVLINK_PARAM_TYPE_BOOL: | |
5083 | return NLA_FLAG; | |
5084 | default: | |
5085 | return -EINVAL; | |
5086 | } | |
5087 | } | |
5088 | ||
5089 | static int | |
5090 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
5091 | enum devlink_param_type type, | |
5092 | enum devlink_param_cmode cmode, | |
5093 | union devlink_param_value val) | |
5094 | { | |
5095 | struct nlattr *param_value_attr; | |
5096 | ||
ae0be8de MK |
5097 | param_value_attr = nla_nest_start_noflag(msg, |
5098 | DEVLINK_ATTR_PARAM_VALUE); | |
45f05def MS |
5099 | if (!param_value_attr) |
5100 | goto nla_put_failure; | |
5101 | ||
5102 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
5103 | goto value_nest_cancel; | |
5104 | ||
5105 | switch (type) { | |
5106 | case DEVLINK_PARAM_TYPE_U8: | |
5107 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
5108 | goto value_nest_cancel; | |
5109 | break; | |
5110 | case DEVLINK_PARAM_TYPE_U16: | |
5111 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
5112 | goto value_nest_cancel; | |
5113 | break; | |
5114 | case DEVLINK_PARAM_TYPE_U32: | |
5115 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
5116 | goto value_nest_cancel; | |
5117 | break; | |
5118 | case DEVLINK_PARAM_TYPE_STRING: | |
5119 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
5120 | val.vstr)) | |
5121 | goto value_nest_cancel; | |
5122 | break; | |
5123 | case DEVLINK_PARAM_TYPE_BOOL: | |
5124 | if (val.vbool && | |
5125 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
5126 | goto value_nest_cancel; | |
5127 | break; | |
5128 | } | |
5129 | ||
5130 | nla_nest_end(msg, param_value_attr); | |
5131 | return 0; | |
5132 | ||
5133 | value_nest_cancel: | |
5134 | nla_nest_cancel(msg, param_value_attr); | |
5135 | nla_put_failure: | |
5136 | return -EMSGSIZE; | |
5137 | } | |
5138 | ||
5139 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 5140 | unsigned int port_index, |
45f05def MS |
5141 | struct devlink_param_item *param_item, |
5142 | enum devlink_command cmd, | |
5143 | u32 portid, u32 seq, int flags) | |
5144 | { | |
5145 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
7c62cfb8 | 5146 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
45f05def MS |
5147 | const struct devlink_param *param = param_item->param; |
5148 | struct devlink_param_gset_ctx ctx; | |
5149 | struct nlattr *param_values_list; | |
5150 | struct nlattr *param_attr; | |
5151 | int nla_type; | |
5152 | void *hdr; | |
5153 | int err; | |
5154 | int i; | |
5155 | ||
5156 | /* Get value from driver part to driverinit configuration mode */ | |
5157 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
5158 | if (!devlink_param_cmode_is_supported(param, i)) | |
5159 | continue; | |
5160 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
5161 | if (!param_item->driverinit_value_valid) | |
5162 | return -EOPNOTSUPP; | |
5163 | param_value[i] = param_item->driverinit_value; | |
5164 | } else { | |
5165 | ctx.cmode = i; | |
5166 | err = devlink_param_get(devlink, param, &ctx); | |
5167 | if (err) | |
5168 | return err; | |
5169 | param_value[i] = ctx.val; | |
5170 | } | |
7c62cfb8 | 5171 | param_value_set[i] = true; |
45f05def MS |
5172 | } |
5173 | ||
5174 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5175 | if (!hdr) | |
5176 | return -EMSGSIZE; | |
5177 | ||
5178 | if (devlink_nl_put_handle(msg, devlink)) | |
5179 | goto genlmsg_cancel; | |
f4601dee | 5180 | |
c1e5786d VV |
5181 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
5182 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
5183 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
5184 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
5185 | goto genlmsg_cancel; | |
5186 | ||
ae0be8de | 5187 | param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM); |
45f05def MS |
5188 | if (!param_attr) |
5189 | goto genlmsg_cancel; | |
5190 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
5191 | goto param_nest_cancel; | |
5192 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
5193 | goto param_nest_cancel; | |
5194 | ||
5195 | nla_type = devlink_param_type_to_nla_type(param->type); | |
5196 | if (nla_type < 0) | |
5197 | goto param_nest_cancel; | |
5198 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
5199 | goto param_nest_cancel; | |
5200 | ||
ae0be8de MK |
5201 | param_values_list = nla_nest_start_noflag(msg, |
5202 | DEVLINK_ATTR_PARAM_VALUES_LIST); | |
45f05def MS |
5203 | if (!param_values_list) |
5204 | goto param_nest_cancel; | |
5205 | ||
5206 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
7c62cfb8 | 5207 | if (!param_value_set[i]) |
45f05def MS |
5208 | continue; |
5209 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
5210 | i, param_value[i]); | |
5211 | if (err) | |
5212 | goto values_list_nest_cancel; | |
5213 | } | |
5214 | ||
5215 | nla_nest_end(msg, param_values_list); | |
5216 | nla_nest_end(msg, param_attr); | |
5217 | genlmsg_end(msg, hdr); | |
5218 | return 0; | |
5219 | ||
5220 | values_list_nest_cancel: | |
5221 | nla_nest_end(msg, param_values_list); | |
5222 | param_nest_cancel: | |
5223 | nla_nest_cancel(msg, param_attr); | |
5224 | genlmsg_cancel: | |
5225 | genlmsg_cancel(msg, hdr); | |
5226 | return -EMSGSIZE; | |
5227 | } | |
5228 | ||
ea601e17 | 5229 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 5230 | unsigned int port_index, |
ea601e17 MS |
5231 | struct devlink_param_item *param_item, |
5232 | enum devlink_command cmd) | |
5233 | { | |
5234 | struct sk_buff *msg; | |
5235 | int err; | |
5236 | ||
c1e5786d VV |
5237 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
5238 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
5239 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
1d18bb1a JK |
5240 | |
5241 | /* devlink_notify_register() / devlink_notify_unregister() | |
5242 | * will replay the notifications if the params are added/removed | |
5243 | * outside of the lifetime of the instance. | |
5244 | */ | |
5245 | if (!devl_is_registered(devlink)) | |
5246 | return; | |
ea601e17 MS |
5247 | |
5248 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5249 | if (!msg) | |
5250 | return; | |
c1e5786d VV |
5251 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
5252 | 0, 0, 0); | |
ea601e17 MS |
5253 | if (err) { |
5254 | nlmsg_free(msg); | |
5255 | return; | |
5256 | } | |
5257 | ||
5258 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
5259 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
5260 | } | |
5261 | ||
5ce76d78 JK |
5262 | static int |
5263 | devlink_nl_cmd_param_get_dump_one(struct sk_buff *msg, struct devlink *devlink, | |
5264 | struct netlink_callback *cb) | |
45f05def | 5265 | { |
3015f822 | 5266 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 JK |
5267 | struct devlink_param_item *param_item; |
5268 | int idx = 0; | |
c62c2cfb | 5269 | int err = 0; |
45f05def | 5270 | |
5ce76d78 JK |
5271 | list_for_each_entry(param_item, &devlink->param_list, list) { |
5272 | if (idx < state->idx) { | |
45f05def | 5273 | idx++; |
5ce76d78 | 5274 | continue; |
45f05def | 5275 | } |
5ce76d78 JK |
5276 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
5277 | DEVLINK_CMD_PARAM_GET, | |
5278 | NETLINK_CB(cb->skb).portid, | |
5279 | cb->nlh->nlmsg_seq, | |
5280 | NLM_F_MULTI); | |
5281 | if (err == -EOPNOTSUPP) { | |
5282 | err = 0; | |
5283 | } else if (err) { | |
5284 | state->idx = idx; | |
5285 | break; | |
5286 | } | |
5287 | idx++; | |
45f05def | 5288 | } |
c62c2cfb | 5289 | |
5ce76d78 | 5290 | return err; |
45f05def MS |
5291 | } |
5292 | ||
5ce76d78 JK |
5293 | const struct devlink_gen_cmd devl_gen_param = { |
5294 | .dump_one = devlink_nl_cmd_param_get_dump_one, | |
5295 | }; | |
5296 | ||
e3b7ca18 MS |
5297 | static int |
5298 | devlink_param_type_get_from_info(struct genl_info *info, | |
5299 | enum devlink_param_type *param_type) | |
5300 | { | |
1f7633b5 | 5301 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_TYPE)) |
e3b7ca18 MS |
5302 | return -EINVAL; |
5303 | ||
5304 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
5305 | case NLA_U8: | |
5306 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
5307 | break; | |
5308 | case NLA_U16: | |
5309 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
5310 | break; | |
5311 | case NLA_U32: | |
5312 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
5313 | break; | |
5314 | case NLA_STRING: | |
5315 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
5316 | break; | |
5317 | case NLA_FLAG: | |
5318 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
5319 | break; | |
5320 | default: | |
5321 | return -EINVAL; | |
5322 | } | |
5323 | ||
5324 | return 0; | |
5325 | } | |
5326 | ||
5327 | static int | |
5328 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
5329 | struct genl_info *info, | |
5330 | union devlink_param_value *value) | |
5331 | { | |
8750939b | 5332 | struct nlattr *param_data; |
f355cfcd MS |
5333 | int len; |
5334 | ||
8750939b JK |
5335 | param_data = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]; |
5336 | ||
5337 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && !param_data) | |
e3b7ca18 MS |
5338 | return -EINVAL; |
5339 | ||
5340 | switch (param->type) { | |
5341 | case DEVLINK_PARAM_TYPE_U8: | |
8750939b JK |
5342 | if (nla_len(param_data) != sizeof(u8)) |
5343 | return -EINVAL; | |
5344 | value->vu8 = nla_get_u8(param_data); | |
e3b7ca18 MS |
5345 | break; |
5346 | case DEVLINK_PARAM_TYPE_U16: | |
8750939b JK |
5347 | if (nla_len(param_data) != sizeof(u16)) |
5348 | return -EINVAL; | |
5349 | value->vu16 = nla_get_u16(param_data); | |
e3b7ca18 MS |
5350 | break; |
5351 | case DEVLINK_PARAM_TYPE_U32: | |
8750939b JK |
5352 | if (nla_len(param_data) != sizeof(u32)) |
5353 | return -EINVAL; | |
5354 | value->vu32 = nla_get_u32(param_data); | |
e3b7ca18 MS |
5355 | break; |
5356 | case DEVLINK_PARAM_TYPE_STRING: | |
8750939b JK |
5357 | len = strnlen(nla_data(param_data), nla_len(param_data)); |
5358 | if (len == nla_len(param_data) || | |
bde74ad1 | 5359 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 5360 | return -EINVAL; |
8750939b | 5361 | strcpy(value->vstr, nla_data(param_data)); |
e3b7ca18 MS |
5362 | break; |
5363 | case DEVLINK_PARAM_TYPE_BOOL: | |
8750939b JK |
5364 | if (param_data && nla_len(param_data)) |
5365 | return -EINVAL; | |
5366 | value->vbool = nla_get_flag(param_data); | |
e3b7ca18 MS |
5367 | break; |
5368 | } | |
5369 | return 0; | |
5370 | } | |
5371 | ||
45f05def | 5372 | static struct devlink_param_item * |
f4601dee | 5373 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
5374 | struct genl_info *info) |
5375 | { | |
5376 | char *param_name; | |
5377 | ||
1f7633b5 | 5378 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_NAME)) |
45f05def MS |
5379 | return NULL; |
5380 | ||
5381 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 5382 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
5383 | } |
5384 | ||
5385 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
5386 | struct genl_info *info) | |
5387 | { | |
5388 | struct devlink *devlink = info->user_ptr[0]; | |
5389 | struct devlink_param_item *param_item; | |
5390 | struct sk_buff *msg; | |
5391 | int err; | |
5392 | ||
f4601dee | 5393 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
5394 | if (!param_item) |
5395 | return -EINVAL; | |
5396 | ||
5397 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5398 | if (!msg) | |
5399 | return -ENOMEM; | |
5400 | ||
f4601dee | 5401 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5402 | DEVLINK_CMD_PARAM_GET, |
5403 | info->snd_portid, info->snd_seq, 0); | |
5404 | if (err) { | |
5405 | nlmsg_free(msg); | |
5406 | return err; | |
5407 | } | |
5408 | ||
5409 | return genlmsg_reply(msg, info); | |
5410 | } | |
5411 | ||
9c54873b | 5412 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 5413 | unsigned int port_index, |
9c54873b VV |
5414 | struct list_head *param_list, |
5415 | struct genl_info *info, | |
5416 | enum devlink_command cmd) | |
e3b7ca18 | 5417 | { |
e3b7ca18 MS |
5418 | enum devlink_param_type param_type; |
5419 | struct devlink_param_gset_ctx ctx; | |
5420 | enum devlink_param_cmode cmode; | |
5421 | struct devlink_param_item *param_item; | |
5422 | const struct devlink_param *param; | |
5423 | union devlink_param_value value; | |
5424 | int err = 0; | |
5425 | ||
9c54873b | 5426 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
5427 | if (!param_item) |
5428 | return -EINVAL; | |
5429 | param = param_item->param; | |
5430 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
5431 | if (err) | |
5432 | return err; | |
5433 | if (param_type != param->type) | |
5434 | return -EINVAL; | |
5435 | err = devlink_param_value_get_from_info(param, info, &value); | |
5436 | if (err) | |
5437 | return err; | |
5438 | if (param->validate) { | |
5439 | err = param->validate(devlink, param->id, value, info->extack); | |
5440 | if (err) | |
5441 | return err; | |
5442 | } | |
5443 | ||
1f7633b5 | 5444 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_VALUE_CMODE)) |
e3b7ca18 MS |
5445 | return -EINVAL; |
5446 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
5447 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
5448 | return -EOPNOTSUPP; | |
5449 | ||
5450 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
5451 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
5452 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
5453 | else | |
5454 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
5455 | param_item->driverinit_value_valid = true; |
5456 | } else { | |
5457 | if (!param->set) | |
5458 | return -EOPNOTSUPP; | |
5459 | ctx.val = value; | |
5460 | ctx.cmode = cmode; | |
5461 | err = devlink_param_set(devlink, param, &ctx); | |
5462 | if (err) | |
5463 | return err; | |
5464 | } | |
5465 | ||
c1e5786d | 5466 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
5467 | return 0; |
5468 | } | |
5469 | ||
9c54873b VV |
5470 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
5471 | struct genl_info *info) | |
5472 | { | |
5473 | struct devlink *devlink = info->user_ptr[0]; | |
5474 | ||
c1e5786d | 5475 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
5476 | info, DEVLINK_CMD_PARAM_NEW); |
5477 | } | |
5478 | ||
f4601dee VV |
5479 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
5480 | struct netlink_callback *cb) | |
5481 | { | |
146ecbac | 5482 | NL_SET_ERR_MSG_MOD(cb->extack, "Port params are not supported"); |
f4601dee VV |
5483 | return msg->len; |
5484 | } | |
5485 | ||
5486 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
5487 | struct genl_info *info) | |
5488 | { | |
146ecbac JP |
5489 | NL_SET_ERR_MSG_MOD(info->extack, "Port params are not supported"); |
5490 | return -EINVAL; | |
f4601dee VV |
5491 | } |
5492 | ||
9c54873b VV |
5493 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
5494 | struct genl_info *info) | |
5495 | { | |
146ecbac JP |
5496 | NL_SET_ERR_MSG_MOD(info->extack, "Port params are not supported"); |
5497 | return -EINVAL; | |
9c54873b VV |
5498 | } |
5499 | ||
a006d467 AV |
5500 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
5501 | struct devlink *devlink, | |
5502 | struct devlink_snapshot *snapshot) | |
5503 | { | |
5504 | struct nlattr *snap_attr; | |
5505 | int err; | |
5506 | ||
ae0be8de | 5507 | snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
a006d467 AV |
5508 | if (!snap_attr) |
5509 | return -EINVAL; | |
5510 | ||
5511 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
5512 | if (err) | |
5513 | goto nla_put_failure; | |
5514 | ||
5515 | nla_nest_end(msg, snap_attr); | |
5516 | return 0; | |
5517 | ||
5518 | nla_put_failure: | |
5519 | nla_nest_cancel(msg, snap_attr); | |
5520 | return err; | |
5521 | } | |
5522 | ||
5523 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
5524 | struct devlink *devlink, | |
5525 | struct devlink_region *region) | |
5526 | { | |
5527 | struct devlink_snapshot *snapshot; | |
5528 | struct nlattr *snapshots_attr; | |
5529 | int err; | |
5530 | ||
ae0be8de MK |
5531 | snapshots_attr = nla_nest_start_noflag(msg, |
5532 | DEVLINK_ATTR_REGION_SNAPSHOTS); | |
a006d467 AV |
5533 | if (!snapshots_attr) |
5534 | return -EINVAL; | |
5535 | ||
5536 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
5537 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
5538 | if (err) | |
5539 | goto nla_put_failure; | |
5540 | } | |
5541 | ||
5542 | nla_nest_end(msg, snapshots_attr); | |
5543 | return 0; | |
5544 | ||
5545 | nla_put_failure: | |
5546 | nla_nest_cancel(msg, snapshots_attr); | |
5547 | return err; | |
5548 | } | |
5549 | ||
d8db7ea5 AV |
5550 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
5551 | enum devlink_command cmd, u32 portid, | |
5552 | u32 seq, int flags, | |
5553 | struct devlink_region *region) | |
5554 | { | |
5555 | void *hdr; | |
5556 | int err; | |
5557 | ||
5558 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5559 | if (!hdr) | |
5560 | return -EMSGSIZE; | |
5561 | ||
5562 | err = devlink_nl_put_handle(msg, devlink); | |
5563 | if (err) | |
5564 | goto nla_put_failure; | |
5565 | ||
6c211809 DC |
5566 | if (region->port) { |
5567 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5568 | region->port->index); | |
5569 | if (err) | |
544e7c33 | 5570 | goto nla_put_failure; |
6c211809 | 5571 | } |
544e7c33 | 5572 | |
e8937681 | 5573 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name); |
d8db7ea5 AV |
5574 | if (err) |
5575 | goto nla_put_failure; | |
5576 | ||
5577 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5578 | region->size, | |
5579 | DEVLINK_ATTR_PAD); | |
5580 | if (err) | |
5581 | goto nla_put_failure; | |
5582 | ||
a70e3f02 JK |
5583 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_MAX_SNAPSHOTS, |
5584 | region->max_snapshots); | |
5585 | if (err) | |
5586 | goto nla_put_failure; | |
5587 | ||
a006d467 AV |
5588 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
5589 | if (err) | |
5590 | goto nla_put_failure; | |
5591 | ||
d8db7ea5 AV |
5592 | genlmsg_end(msg, hdr); |
5593 | return 0; | |
5594 | ||
5595 | nla_put_failure: | |
5596 | genlmsg_cancel(msg, hdr); | |
5597 | return err; | |
5598 | } | |
5599 | ||
dd86fec7 JK |
5600 | static struct sk_buff * |
5601 | devlink_nl_region_notify_build(struct devlink_region *region, | |
5602 | struct devlink_snapshot *snapshot, | |
5603 | enum devlink_command cmd, u32 portid, u32 seq) | |
866319bb AV |
5604 | { |
5605 | struct devlink *devlink = region->devlink; | |
5606 | struct sk_buff *msg; | |
5607 | void *hdr; | |
5608 | int err; | |
5609 | ||
866319bb AV |
5610 | |
5611 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5612 | if (!msg) | |
dd86fec7 | 5613 | return ERR_PTR(-ENOMEM); |
866319bb | 5614 | |
dd86fec7 JK |
5615 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, 0, cmd); |
5616 | if (!hdr) { | |
5617 | err = -EMSGSIZE; | |
866319bb | 5618 | goto out_free_msg; |
dd86fec7 | 5619 | } |
866319bb AV |
5620 | |
5621 | err = devlink_nl_put_handle(msg, devlink); | |
5622 | if (err) | |
5623 | goto out_cancel_msg; | |
5624 | ||
6c211809 DC |
5625 | if (region->port) { |
5626 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5627 | region->port->index); | |
5628 | if (err) | |
544e7c33 | 5629 | goto out_cancel_msg; |
6c211809 | 5630 | } |
544e7c33 | 5631 | |
866319bb | 5632 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, |
e8937681 | 5633 | region->ops->name); |
866319bb AV |
5634 | if (err) |
5635 | goto out_cancel_msg; | |
5636 | ||
5637 | if (snapshot) { | |
5638 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
5639 | snapshot->id); | |
5640 | if (err) | |
5641 | goto out_cancel_msg; | |
5642 | } else { | |
5643 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5644 | region->size, DEVLINK_ATTR_PAD); | |
5645 | if (err) | |
5646 | goto out_cancel_msg; | |
5647 | } | |
5648 | genlmsg_end(msg, hdr); | |
5649 | ||
dd86fec7 | 5650 | return msg; |
866319bb AV |
5651 | |
5652 | out_cancel_msg: | |
5653 | genlmsg_cancel(msg, hdr); | |
5654 | out_free_msg: | |
5655 | nlmsg_free(msg); | |
dd86fec7 JK |
5656 | return ERR_PTR(err); |
5657 | } | |
5658 | ||
5659 | static void devlink_nl_region_notify(struct devlink_region *region, | |
5660 | struct devlink_snapshot *snapshot, | |
5661 | enum devlink_command cmd) | |
5662 | { | |
cf530217 | 5663 | struct devlink *devlink = region->devlink; |
dd86fec7 JK |
5664 | struct sk_buff *msg; |
5665 | ||
5666 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
ef91abfb LR |
5667 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
5668 | return; | |
dd86fec7 JK |
5669 | |
5670 | msg = devlink_nl_region_notify_build(region, snapshot, cmd, 0, 0); | |
5671 | if (IS_ERR(msg)) | |
5672 | return; | |
5673 | ||
cf530217 LR |
5674 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
5675 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
866319bb AV |
5676 | } |
5677 | ||
12102436 JK |
5678 | /** |
5679 | * __devlink_snapshot_id_increment - Increment number of snapshots using an id | |
5680 | * @devlink: devlink instance | |
5681 | * @id: the snapshot id | |
5682 | * | |
5683 | * Track when a new snapshot begins using an id. Load the count for the | |
5684 | * given id from the snapshot xarray, increment it, and store it back. | |
5685 | * | |
5686 | * Called when a new snapshot is created with the given id. | |
5687 | * | |
5688 | * The id *must* have been previously allocated by | |
5689 | * devlink_region_snapshot_id_get(). | |
5690 | * | |
5691 | * Returns 0 on success, or an error on failure. | |
5692 | */ | |
5693 | static int __devlink_snapshot_id_increment(struct devlink *devlink, u32 id) | |
5694 | { | |
5695 | unsigned long count; | |
5696 | void *p; | |
5502e871 | 5697 | int err; |
12102436 | 5698 | |
5502e871 | 5699 | xa_lock(&devlink->snapshot_ids); |
12102436 | 5700 | p = xa_load(&devlink->snapshot_ids, id); |
5502e871 JP |
5701 | if (WARN_ON(!p)) { |
5702 | err = -EINVAL; | |
5703 | goto unlock; | |
5704 | } | |
12102436 | 5705 | |
5502e871 JP |
5706 | if (WARN_ON(!xa_is_value(p))) { |
5707 | err = -EINVAL; | |
5708 | goto unlock; | |
5709 | } | |
12102436 JK |
5710 | |
5711 | count = xa_to_value(p); | |
5712 | count++; | |
5713 | ||
5502e871 JP |
5714 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5715 | GFP_ATOMIC)); | |
5716 | unlock: | |
5717 | xa_unlock(&devlink->snapshot_ids); | |
5718 | return err; | |
12102436 JK |
5719 | } |
5720 | ||
5721 | /** | |
5722 | * __devlink_snapshot_id_decrement - Decrease number of snapshots using an id | |
5723 | * @devlink: devlink instance | |
5724 | * @id: the snapshot id | |
5725 | * | |
5726 | * Track when a snapshot is deleted and stops using an id. Load the count | |
5727 | * for the given id from the snapshot xarray, decrement it, and store it | |
5728 | * back. | |
5729 | * | |
5730 | * If the count reaches zero, erase this id from the xarray, freeing it | |
5731 | * up for future re-use by devlink_region_snapshot_id_get(). | |
5732 | * | |
5733 | * Called when a snapshot using the given id is deleted, and when the | |
5734 | * initial allocator of the id is finished using it. | |
5735 | */ | |
5736 | static void __devlink_snapshot_id_decrement(struct devlink *devlink, u32 id) | |
5737 | { | |
5738 | unsigned long count; | |
5739 | void *p; | |
5740 | ||
5502e871 | 5741 | xa_lock(&devlink->snapshot_ids); |
12102436 JK |
5742 | p = xa_load(&devlink->snapshot_ids, id); |
5743 | if (WARN_ON(!p)) | |
5502e871 | 5744 | goto unlock; |
12102436 JK |
5745 | |
5746 | if (WARN_ON(!xa_is_value(p))) | |
5502e871 | 5747 | goto unlock; |
12102436 JK |
5748 | |
5749 | count = xa_to_value(p); | |
5750 | ||
5751 | if (count > 1) { | |
5752 | count--; | |
5502e871 JP |
5753 | __xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5754 | GFP_ATOMIC); | |
12102436 JK |
5755 | } else { |
5756 | /* If this was the last user, we can erase this id */ | |
5502e871 | 5757 | __xa_erase(&devlink->snapshot_ids, id); |
12102436 | 5758 | } |
5502e871 JP |
5759 | unlock: |
5760 | xa_unlock(&devlink->snapshot_ids); | |
12102436 JK |
5761 | } |
5762 | ||
b9a17abf JK |
5763 | /** |
5764 | * __devlink_snapshot_id_insert - Insert a specific snapshot ID | |
5765 | * @devlink: devlink instance | |
5766 | * @id: the snapshot id | |
5767 | * | |
5768 | * Mark the given snapshot id as used by inserting a zero value into the | |
5769 | * snapshot xarray. | |
5770 | * | |
5771 | * This must be called while holding the devlink instance lock. Unlike | |
5772 | * devlink_snapshot_id_get, the initial reference count is zero, not one. | |
5773 | * It is expected that the id will immediately be used before | |
5774 | * releasing the devlink instance lock. | |
5775 | * | |
5776 | * Returns zero on success, or an error code if the snapshot id could not | |
5777 | * be inserted. | |
5778 | */ | |
5779 | static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id) | |
5780 | { | |
5502e871 | 5781 | int err; |
b9a17abf | 5782 | |
5502e871 JP |
5783 | xa_lock(&devlink->snapshot_ids); |
5784 | if (xa_load(&devlink->snapshot_ids, id)) { | |
5785 | xa_unlock(&devlink->snapshot_ids); | |
b9a17abf | 5786 | return -EEXIST; |
5502e871 JP |
5787 | } |
5788 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), | |
5789 | GFP_ATOMIC)); | |
5790 | xa_unlock(&devlink->snapshot_ids); | |
5791 | return err; | |
b9a17abf JK |
5792 | } |
5793 | ||
7000108f JK |
5794 | /** |
5795 | * __devlink_region_snapshot_id_get - get snapshot ID | |
5796 | * @devlink: devlink instance | |
7ef19d3b | 5797 | * @id: storage to return snapshot id |
7000108f | 5798 | * |
7ef19d3b JK |
5799 | * Allocates a new snapshot id. Returns zero on success, or a negative |
5800 | * error on failure. Must be called while holding the devlink instance | |
5801 | * lock. | |
12102436 JK |
5802 | * |
5803 | * Snapshot IDs are tracked using an xarray which stores the number of | |
5804 | * users of the snapshot id. | |
5805 | * | |
5806 | * Note that the caller of this function counts as a 'user', in order to | |
5807 | * avoid race conditions. The caller must release its hold on the | |
5808 | * snapshot by using devlink_region_snapshot_id_put. | |
7000108f | 5809 | */ |
7ef19d3b | 5810 | static int __devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
7000108f | 5811 | { |
12102436 JK |
5812 | return xa_alloc(&devlink->snapshot_ids, id, xa_mk_value(1), |
5813 | xa_limit_32b, GFP_KERNEL); | |
7000108f JK |
5814 | } |
5815 | ||
cf80faee JK |
5816 | /** |
5817 | * __devlink_region_snapshot_create - create a new snapshot | |
5818 | * This will add a new snapshot of a region. The snapshot | |
5819 | * will be stored on the region struct and can be accessed | |
5820 | * from devlink. This is useful for future analyses of snapshots. | |
5821 | * Multiple snapshots can be created on a region. | |
5822 | * The @snapshot_id should be obtained using the getter function. | |
5823 | * | |
2dec18ad | 5824 | * Must be called only while holding the region snapshot lock. |
cf80faee JK |
5825 | * |
5826 | * @region: devlink region of the snapshot | |
5827 | * @data: snapshot data | |
5828 | * @snapshot_id: snapshot id to be created | |
5829 | */ | |
5830 | static int | |
5831 | __devlink_region_snapshot_create(struct devlink_region *region, | |
5832 | u8 *data, u32 snapshot_id) | |
5833 | { | |
5834 | struct devlink *devlink = region->devlink; | |
5835 | struct devlink_snapshot *snapshot; | |
12102436 | 5836 | int err; |
cf80faee | 5837 | |
2dec18ad | 5838 | lockdep_assert_held(®ion->snapshot_lock); |
cf80faee JK |
5839 | |
5840 | /* check if region can hold one more snapshot */ | |
5841 | if (region->cur_snapshots == region->max_snapshots) | |
47a39f61 | 5842 | return -ENOSPC; |
cf80faee JK |
5843 | |
5844 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) | |
5845 | return -EEXIST; | |
5846 | ||
5847 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
5848 | if (!snapshot) | |
5849 | return -ENOMEM; | |
5850 | ||
12102436 JK |
5851 | err = __devlink_snapshot_id_increment(devlink, snapshot_id); |
5852 | if (err) | |
5853 | goto err_snapshot_id_increment; | |
5854 | ||
cf80faee JK |
5855 | snapshot->id = snapshot_id; |
5856 | snapshot->region = region; | |
5857 | snapshot->data = data; | |
5858 | ||
5859 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
5860 | ||
5861 | region->cur_snapshots++; | |
5862 | ||
5863 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); | |
5864 | return 0; | |
12102436 JK |
5865 | |
5866 | err_snapshot_id_increment: | |
5867 | kfree(snapshot); | |
5868 | return err; | |
cf80faee JK |
5869 | } |
5870 | ||
92b49822 JP |
5871 | static void devlink_region_snapshot_del(struct devlink_region *region, |
5872 | struct devlink_snapshot *snapshot) | |
5873 | { | |
12102436 JK |
5874 | struct devlink *devlink = region->devlink; |
5875 | ||
2dec18ad | 5876 | lockdep_assert_held(®ion->snapshot_lock); |
12102436 | 5877 | |
92b49822 JP |
5878 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
5879 | region->cur_snapshots--; | |
5880 | list_del(&snapshot->list); | |
a0a09f6b | 5881 | region->ops->destructor(snapshot->data); |
12102436 | 5882 | __devlink_snapshot_id_decrement(devlink, snapshot->id); |
92b49822 JP |
5883 | kfree(snapshot); |
5884 | } | |
5885 | ||
d8db7ea5 AV |
5886 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
5887 | struct genl_info *info) | |
5888 | { | |
5889 | struct devlink *devlink = info->user_ptr[0]; | |
544e7c33 | 5890 | struct devlink_port *port = NULL; |
d8db7ea5 AV |
5891 | struct devlink_region *region; |
5892 | const char *region_name; | |
5893 | struct sk_buff *msg; | |
544e7c33 | 5894 | unsigned int index; |
d8db7ea5 AV |
5895 | int err; |
5896 | ||
1f7633b5 | 5897 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME)) |
d8db7ea5 AV |
5898 | return -EINVAL; |
5899 | ||
544e7c33 AL |
5900 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
5901 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
5902 | ||
5903 | port = devlink_port_get_by_index(devlink, index); | |
5904 | if (!port) | |
5905 | return -ENODEV; | |
5906 | } | |
5907 | ||
d8db7ea5 | 5908 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
5909 | if (port) |
5910 | region = devlink_port_region_get_by_name(port, region_name); | |
5911 | else | |
5912 | region = devlink_region_get_by_name(devlink, region_name); | |
5913 | ||
d8db7ea5 AV |
5914 | if (!region) |
5915 | return -EINVAL; | |
5916 | ||
5917 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5918 | if (!msg) | |
5919 | return -ENOMEM; | |
5920 | ||
5921 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
5922 | info->snd_portid, info->snd_seq, 0, | |
5923 | region); | |
5924 | if (err) { | |
5925 | nlmsg_free(msg); | |
5926 | return err; | |
5927 | } | |
5928 | ||
5929 | return genlmsg_reply(msg, info); | |
5930 | } | |
5931 | ||
544e7c33 AL |
5932 | static int devlink_nl_cmd_region_get_port_dumpit(struct sk_buff *msg, |
5933 | struct netlink_callback *cb, | |
5934 | struct devlink_port *port, | |
5935 | int *idx, | |
5936 | int start) | |
5937 | { | |
5938 | struct devlink_region *region; | |
5939 | int err = 0; | |
5940 | ||
5941 | list_for_each_entry(region, &port->region_list, list) { | |
5942 | if (*idx < start) { | |
5943 | (*idx)++; | |
5944 | continue; | |
5945 | } | |
5946 | err = devlink_nl_region_fill(msg, port->devlink, | |
5947 | DEVLINK_CMD_REGION_GET, | |
5948 | NETLINK_CB(cb->skb).portid, | |
5949 | cb->nlh->nlmsg_seq, | |
5950 | NLM_F_MULTI, region); | |
5951 | if (err) | |
5952 | goto out; | |
5953 | (*idx)++; | |
5954 | } | |
5955 | ||
5956 | out: | |
5957 | return err; | |
5958 | } | |
5959 | ||
5ce76d78 JK |
5960 | static int |
5961 | devlink_nl_cmd_region_get_dump_one(struct sk_buff *msg, struct devlink *devlink, | |
5962 | struct netlink_callback *cb) | |
544e7c33 | 5963 | { |
5ce76d78 | 5964 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
544e7c33 AL |
5965 | struct devlink_region *region; |
5966 | struct devlink_port *port; | |
47b438cc | 5967 | unsigned long port_index; |
5ce76d78 | 5968 | int idx = 0; |
e4d5015b | 5969 | int err; |
544e7c33 | 5970 | |
544e7c33 | 5971 | list_for_each_entry(region, &devlink->region_list, list) { |
5ce76d78 JK |
5972 | if (idx < state->idx) { |
5973 | idx++; | |
544e7c33 AL |
5974 | continue; |
5975 | } | |
5976 | err = devlink_nl_region_fill(msg, devlink, | |
5977 | DEVLINK_CMD_REGION_GET, | |
5978 | NETLINK_CB(cb->skb).portid, | |
5979 | cb->nlh->nlmsg_seq, | |
5980 | NLM_F_MULTI, region); | |
5ce76d78 JK |
5981 | if (err) { |
5982 | state->idx = idx; | |
e4d5015b | 5983 | return err; |
5ce76d78 JK |
5984 | } |
5985 | idx++; | |
544e7c33 AL |
5986 | } |
5987 | ||
47b438cc | 5988 | xa_for_each(&devlink->ports, port_index, port) { |
5ce76d78 JK |
5989 | err = devlink_nl_cmd_region_get_port_dumpit(msg, cb, port, &idx, |
5990 | state->idx); | |
5991 | if (err) { | |
5992 | state->idx = idx; | |
e4d5015b | 5993 | return err; |
5ce76d78 | 5994 | } |
544e7c33 AL |
5995 | } |
5996 | ||
e4d5015b | 5997 | return 0; |
544e7c33 AL |
5998 | } |
5999 | ||
5ce76d78 JK |
6000 | const struct devlink_gen_cmd devl_gen_region = { |
6001 | .dump_one = devlink_nl_cmd_region_get_dump_one, | |
6002 | }; | |
d8db7ea5 | 6003 | |
866319bb AV |
6004 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
6005 | struct genl_info *info) | |
6006 | { | |
6007 | struct devlink *devlink = info->user_ptr[0]; | |
6008 | struct devlink_snapshot *snapshot; | |
544e7c33 | 6009 | struct devlink_port *port = NULL; |
866319bb AV |
6010 | struct devlink_region *region; |
6011 | const char *region_name; | |
544e7c33 | 6012 | unsigned int index; |
866319bb AV |
6013 | u32 snapshot_id; |
6014 | ||
1f7633b5 JK |
6015 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME) || |
6016 | GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_SNAPSHOT_ID)) | |
866319bb AV |
6017 | return -EINVAL; |
6018 | ||
6019 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
6020 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6021 | ||
544e7c33 AL |
6022 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6023 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6024 | ||
6025 | port = devlink_port_get_by_index(devlink, index); | |
6026 | if (!port) | |
6027 | return -ENODEV; | |
6028 | } | |
6029 | ||
6030 | if (port) | |
6031 | region = devlink_port_region_get_by_name(port, region_name); | |
6032 | else | |
6033 | region = devlink_region_get_by_name(devlink, region_name); | |
6034 | ||
866319bb AV |
6035 | if (!region) |
6036 | return -EINVAL; | |
6037 | ||
2dec18ad | 6038 | mutex_lock(®ion->snapshot_lock); |
866319bb | 6039 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); |
2dec18ad JP |
6040 | if (!snapshot) { |
6041 | mutex_unlock(®ion->snapshot_lock); | |
866319bb | 6042 | return -EINVAL; |
2dec18ad | 6043 | } |
866319bb | 6044 | |
92b49822 | 6045 | devlink_region_snapshot_del(region, snapshot); |
2dec18ad | 6046 | mutex_unlock(®ion->snapshot_lock); |
866319bb AV |
6047 | return 0; |
6048 | } | |
6049 | ||
b9a17abf JK |
6050 | static int |
6051 | devlink_nl_cmd_region_new(struct sk_buff *skb, struct genl_info *info) | |
6052 | { | |
6053 | struct devlink *devlink = info->user_ptr[0]; | |
043b3e22 | 6054 | struct devlink_snapshot *snapshot; |
544e7c33 | 6055 | struct devlink_port *port = NULL; |
043b3e22 | 6056 | struct nlattr *snapshot_id_attr; |
b9a17abf JK |
6057 | struct devlink_region *region; |
6058 | const char *region_name; | |
544e7c33 | 6059 | unsigned int index; |
b9a17abf JK |
6060 | u32 snapshot_id; |
6061 | u8 *data; | |
6062 | int err; | |
6063 | ||
1f7633b5 | 6064 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME)) { |
b9a17abf JK |
6065 | NL_SET_ERR_MSG_MOD(info->extack, "No region name provided"); |
6066 | return -EINVAL; | |
6067 | } | |
6068 | ||
b9a17abf | 6069 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6070 | |
6071 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
6072 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6073 | ||
6074 | port = devlink_port_get_by_index(devlink, index); | |
6075 | if (!port) | |
6076 | return -ENODEV; | |
6077 | } | |
6078 | ||
6079 | if (port) | |
6080 | region = devlink_port_region_get_by_name(port, region_name); | |
6081 | else | |
6082 | region = devlink_region_get_by_name(devlink, region_name); | |
6083 | ||
b9a17abf JK |
6084 | if (!region) { |
6085 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not exist"); | |
6086 | return -EINVAL; | |
6087 | } | |
6088 | ||
6089 | if (!region->ops->snapshot) { | |
6090 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not support taking an immediate snapshot"); | |
6091 | return -EOPNOTSUPP; | |
6092 | } | |
6093 | ||
2dec18ad JP |
6094 | mutex_lock(®ion->snapshot_lock); |
6095 | ||
b9a17abf JK |
6096 | if (region->cur_snapshots == region->max_snapshots) { |
6097 | NL_SET_ERR_MSG_MOD(info->extack, "The region has reached the maximum number of stored snapshots"); | |
2dec18ad JP |
6098 | err = -ENOSPC; |
6099 | goto unlock; | |
b9a17abf JK |
6100 | } |
6101 | ||
043b3e22 JK |
6102 | snapshot_id_attr = info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]; |
6103 | if (snapshot_id_attr) { | |
6104 | snapshot_id = nla_get_u32(snapshot_id_attr); | |
b9a17abf | 6105 | |
043b3e22 JK |
6106 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { |
6107 | NL_SET_ERR_MSG_MOD(info->extack, "The requested snapshot id is already in use"); | |
2dec18ad JP |
6108 | err = -EEXIST; |
6109 | goto unlock; | |
043b3e22 | 6110 | } |
b9a17abf | 6111 | |
043b3e22 JK |
6112 | err = __devlink_snapshot_id_insert(devlink, snapshot_id); |
6113 | if (err) | |
2dec18ad | 6114 | goto unlock; |
043b3e22 JK |
6115 | } else { |
6116 | err = __devlink_region_snapshot_id_get(devlink, &snapshot_id); | |
6117 | if (err) { | |
6118 | NL_SET_ERR_MSG_MOD(info->extack, "Failed to allocate a new snapshot id"); | |
2dec18ad | 6119 | goto unlock; |
043b3e22 JK |
6120 | } |
6121 | } | |
b9a17abf | 6122 | |
544e7c33 AL |
6123 | if (port) |
6124 | err = region->port_ops->snapshot(port, region->port_ops, | |
6125 | info->extack, &data); | |
6126 | else | |
6127 | err = region->ops->snapshot(devlink, region->ops, | |
6128 | info->extack, &data); | |
b9a17abf JK |
6129 | if (err) |
6130 | goto err_snapshot_capture; | |
6131 | ||
6132 | err = __devlink_region_snapshot_create(region, data, snapshot_id); | |
6133 | if (err) | |
6134 | goto err_snapshot_create; | |
6135 | ||
043b3e22 JK |
6136 | if (!snapshot_id_attr) { |
6137 | struct sk_buff *msg; | |
6138 | ||
6139 | snapshot = devlink_region_snapshot_get_by_id(region, | |
6140 | snapshot_id); | |
80ef9286 AF |
6141 | if (WARN_ON(!snapshot)) { |
6142 | err = -EINVAL; | |
6143 | goto unlock; | |
6144 | } | |
043b3e22 JK |
6145 | |
6146 | msg = devlink_nl_region_notify_build(region, snapshot, | |
6147 | DEVLINK_CMD_REGION_NEW, | |
6148 | info->snd_portid, | |
6149 | info->snd_seq); | |
6150 | err = PTR_ERR_OR_ZERO(msg); | |
6151 | if (err) | |
6152 | goto err_notify; | |
6153 | ||
6154 | err = genlmsg_reply(msg, info); | |
6155 | if (err) | |
6156 | goto err_notify; | |
6157 | } | |
6158 | ||
2dec18ad | 6159 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf JK |
6160 | return 0; |
6161 | ||
6162 | err_snapshot_create: | |
6163 | region->ops->destructor(data); | |
6164 | err_snapshot_capture: | |
6165 | __devlink_snapshot_id_decrement(devlink, snapshot_id); | |
2dec18ad | 6166 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf | 6167 | return err; |
043b3e22 JK |
6168 | |
6169 | err_notify: | |
6170 | devlink_region_snapshot_del(region, snapshot); | |
2dec18ad JP |
6171 | unlock: |
6172 | mutex_unlock(®ion->snapshot_lock); | |
043b3e22 | 6173 | return err; |
b9a17abf JK |
6174 | } |
6175 | ||
4e54795a | 6176 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
4e54795a AV |
6177 | u8 *chunk, u32 chunk_size, |
6178 | u64 addr) | |
6179 | { | |
6180 | struct nlattr *chunk_attr; | |
6181 | int err; | |
6182 | ||
ae0be8de | 6183 | chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK); |
4e54795a AV |
6184 | if (!chunk_attr) |
6185 | return -EINVAL; | |
6186 | ||
6187 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
6188 | if (err) | |
6189 | goto nla_put_failure; | |
6190 | ||
6191 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
6192 | DEVLINK_ATTR_PAD); | |
6193 | if (err) | |
6194 | goto nla_put_failure; | |
6195 | ||
6196 | nla_nest_end(msg, chunk_attr); | |
6197 | return 0; | |
6198 | ||
6199 | nla_put_failure: | |
6200 | nla_nest_cancel(msg, chunk_attr); | |
6201 | return err; | |
6202 | } | |
6203 | ||
6204 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
6205 | ||
2d4caf09 JK |
6206 | typedef int devlink_chunk_fill_t(void *cb_priv, u8 *chunk, u32 chunk_size, |
6207 | u64 curr_offset, | |
6208 | struct netlink_ext_ack *extack); | |
6209 | ||
6210 | static int | |
6211 | devlink_nl_region_read_fill(struct sk_buff *skb, devlink_chunk_fill_t *cb, | |
6212 | void *cb_priv, u64 start_offset, u64 end_offset, | |
6213 | u64 *new_offset, struct netlink_ext_ack *extack) | |
4e54795a | 6214 | { |
4e54795a | 6215 | u64 curr_offset = start_offset; |
4e54795a | 6216 | int err = 0; |
2d4caf09 JK |
6217 | u8 *data; |
6218 | ||
6219 | /* Allocate and re-use a single buffer */ | |
6220 | data = kmalloc(DEVLINK_REGION_READ_CHUNK_SIZE, GFP_KERNEL); | |
6221 | if (!data) | |
6222 | return -ENOMEM; | |
4e54795a AV |
6223 | |
6224 | *new_offset = start_offset; | |
6225 | ||
4e54795a AV |
6226 | while (curr_offset < end_offset) { |
6227 | u32 data_size; | |
4e54795a | 6228 | |
28e0c250 JK |
6229 | data_size = min_t(u32, end_offset - curr_offset, |
6230 | DEVLINK_REGION_READ_CHUNK_SIZE); | |
4e54795a | 6231 | |
2d4caf09 JK |
6232 | err = cb(cb_priv, data, data_size, curr_offset, extack); |
6233 | if (err) | |
6234 | break; | |
6235 | ||
284e9d1e | 6236 | err = devlink_nl_cmd_region_read_chunk_fill(skb, data, data_size, curr_offset); |
4e54795a AV |
6237 | if (err) |
6238 | break; | |
6239 | ||
6240 | curr_offset += data_size; | |
6241 | } | |
6242 | *new_offset = curr_offset; | |
6243 | ||
2d4caf09 JK |
6244 | kfree(data); |
6245 | ||
4e54795a AV |
6246 | return err; |
6247 | } | |
6248 | ||
2d4caf09 JK |
6249 | static int |
6250 | devlink_region_snapshot_fill(void *cb_priv, u8 *chunk, u32 chunk_size, | |
6251 | u64 curr_offset, | |
6252 | struct netlink_ext_ack __always_unused *extack) | |
6253 | { | |
6254 | struct devlink_snapshot *snapshot = cb_priv; | |
6255 | ||
6256 | memcpy(chunk, &snapshot->data[curr_offset], chunk_size); | |
6257 | ||
6258 | return 0; | |
6259 | } | |
6260 | ||
af6397c9 JK |
6261 | static int |
6262 | devlink_region_port_direct_fill(void *cb_priv, u8 *chunk, u32 chunk_size, | |
6263 | u64 curr_offset, struct netlink_ext_ack *extack) | |
6264 | { | |
6265 | struct devlink_region *region = cb_priv; | |
6266 | ||
6267 | return region->port_ops->read(region->port, region->port_ops, extack, | |
6268 | curr_offset, chunk_size, chunk); | |
6269 | } | |
6270 | ||
6271 | static int | |
6272 | devlink_region_direct_fill(void *cb_priv, u8 *chunk, u32 chunk_size, | |
6273 | u64 curr_offset, struct netlink_ext_ack *extack) | |
6274 | { | |
6275 | struct devlink_region *region = cb_priv; | |
6276 | ||
6277 | return region->ops->read(region->devlink, region->ops, extack, | |
6278 | curr_offset, chunk_size, chunk); | |
6279 | } | |
6280 | ||
4e54795a AV |
6281 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, |
6282 | struct netlink_callback *cb) | |
6283 | { | |
ee85da53 | 6284 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
3015f822 | 6285 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
e004ea10 | 6286 | struct nlattr *chunks_attr, *region_attr, *snapshot_attr; |
5a46b062 | 6287 | u64 ret_offset, start_offset, end_offset = U64_MAX; |
ee85da53 | 6288 | struct nlattr **attrs = info->attrs; |
544e7c33 | 6289 | struct devlink_port *port = NULL; |
af6397c9 | 6290 | devlink_chunk_fill_t *region_cb; |
4e54795a | 6291 | struct devlink_region *region; |
4e54795a AV |
6292 | const char *region_name; |
6293 | struct devlink *devlink; | |
544e7c33 | 6294 | unsigned int index; |
af6397c9 | 6295 | void *region_cb_priv; |
4e54795a AV |
6296 | void *hdr; |
6297 | int err; | |
6298 | ||
3015f822 | 6299 | start_offset = state->start_offset; |
4e54795a | 6300 | |
870c7ad4 | 6301 | devlink = devlink_get_from_attrs_lock(sock_net(cb->skb->sk), attrs); |
d3efc2a6 JP |
6302 | if (IS_ERR(devlink)) |
6303 | return PTR_ERR(devlink); | |
4e54795a | 6304 | |
611fd12c JK |
6305 | if (!attrs[DEVLINK_ATTR_REGION_NAME]) { |
6306 | NL_SET_ERR_MSG(cb->extack, "No region name provided"); | |
6307 | err = -EINVAL; | |
6308 | goto out_unlock; | |
6309 | } | |
6310 | ||
544e7c33 AL |
6311 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6312 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6313 | ||
6314 | port = devlink_port_get_by_index(devlink, index); | |
0d8cb946 DC |
6315 | if (!port) { |
6316 | err = -ENODEV; | |
6317 | goto out_unlock; | |
6318 | } | |
544e7c33 AL |
6319 | } |
6320 | ||
611fd12c JK |
6321 | region_attr = attrs[DEVLINK_ATTR_REGION_NAME]; |
6322 | region_name = nla_data(region_attr); | |
544e7c33 AL |
6323 | |
6324 | if (port) | |
6325 | region = devlink_port_region_get_by_name(port, region_name); | |
6326 | else | |
6327 | region = devlink_region_get_by_name(devlink, region_name); | |
6328 | ||
fdd41ec2 | 6329 | if (!region) { |
611fd12c | 6330 | NL_SET_ERR_MSG_ATTR(cb->extack, region_attr, "Requested region does not exist"); |
fdd41ec2 | 6331 | err = -EINVAL; |
4e54795a | 6332 | goto out_unlock; |
fdd41ec2 | 6333 | } |
4e54795a | 6334 | |
e004ea10 | 6335 | snapshot_attr = attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]; |
af6397c9 JK |
6336 | if (!snapshot_attr) { |
6337 | if (!nla_get_flag(attrs[DEVLINK_ATTR_REGION_DIRECT])) { | |
6338 | NL_SET_ERR_MSG(cb->extack, "No snapshot id provided"); | |
6339 | err = -EINVAL; | |
6340 | goto out_unlock; | |
6341 | } | |
6342 | ||
6343 | if (!region->ops->read) { | |
6344 | NL_SET_ERR_MSG(cb->extack, "Requested region does not support direct read"); | |
6345 | err = -EOPNOTSUPP; | |
6346 | goto out_unlock; | |
6347 | } | |
6348 | ||
6349 | if (port) | |
6350 | region_cb = &devlink_region_port_direct_fill; | |
6351 | else | |
6352 | region_cb = &devlink_region_direct_fill; | |
6353 | region_cb_priv = region; | |
6354 | } else { | |
6355 | struct devlink_snapshot *snapshot; | |
6356 | u32 snapshot_id; | |
6357 | ||
6358 | if (nla_get_flag(attrs[DEVLINK_ATTR_REGION_DIRECT])) { | |
6359 | NL_SET_ERR_MSG_ATTR(cb->extack, snapshot_attr, "Direct region read does not use snapshot"); | |
6360 | err = -EINVAL; | |
6361 | goto out_unlock; | |
6362 | } | |
6363 | ||
6364 | snapshot_id = nla_get_u32(snapshot_attr); | |
6365 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
6366 | if (!snapshot) { | |
6367 | NL_SET_ERR_MSG_ATTR(cb->extack, snapshot_attr, "Requested snapshot does not exist"); | |
6368 | err = -EINVAL; | |
6369 | goto out_unlock; | |
6370 | } | |
6371 | region_cb = &devlink_region_snapshot_fill; | |
6372 | region_cb_priv = snapshot; | |
e004ea10 JK |
6373 | } |
6374 | ||
5a46b062 JK |
6375 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && |
6376 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
6377 | if (!start_offset) | |
6378 | start_offset = | |
6379 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6380 | ||
6381 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6382 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
6383 | } | |
6384 | ||
6385 | if (end_offset > region->size) | |
6386 | end_offset = region->size; | |
6387 | ||
d5b90e99 | 6388 | /* return 0 if there is no further data to read */ |
5a46b062 | 6389 | if (start_offset == end_offset) { |
d5b90e99 JK |
6390 | err = 0; |
6391 | goto out_unlock; | |
6392 | } | |
6393 | ||
4e54795a AV |
6394 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
6395 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
6396 | DEVLINK_CMD_REGION_READ); | |
fdd41ec2 PP |
6397 | if (!hdr) { |
6398 | err = -EMSGSIZE; | |
4e54795a | 6399 | goto out_unlock; |
fdd41ec2 | 6400 | } |
4e54795a AV |
6401 | |
6402 | err = devlink_nl_put_handle(skb, devlink); | |
6403 | if (err) | |
6404 | goto nla_put_failure; | |
6405 | ||
6c211809 DC |
6406 | if (region->port) { |
6407 | err = nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX, | |
6408 | region->port->index); | |
6409 | if (err) | |
544e7c33 | 6410 | goto nla_put_failure; |
6c211809 | 6411 | } |
544e7c33 | 6412 | |
4e54795a AV |
6413 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); |
6414 | if (err) | |
6415 | goto nla_put_failure; | |
6416 | ||
ae0be8de | 6417 | chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS); |
fdd41ec2 PP |
6418 | if (!chunks_attr) { |
6419 | err = -EMSGSIZE; | |
4e54795a | 6420 | goto nla_put_failure; |
fdd41ec2 | 6421 | } |
4e54795a | 6422 | |
af6397c9 JK |
6423 | err = devlink_nl_region_read_fill(skb, region_cb, region_cb_priv, |
6424 | start_offset, end_offset, &ret_offset, | |
6425 | cb->extack); | |
4e54795a AV |
6426 | |
6427 | if (err && err != -EMSGSIZE) | |
6428 | goto nla_put_failure; | |
6429 | ||
6430 | /* Check if there was any progress done to prevent infinite loop */ | |
fdd41ec2 PP |
6431 | if (ret_offset == start_offset) { |
6432 | err = -EINVAL; | |
4e54795a | 6433 | goto nla_put_failure; |
fdd41ec2 | 6434 | } |
4e54795a | 6435 | |
3015f822 | 6436 | state->start_offset = ret_offset; |
4e54795a AV |
6437 | |
6438 | nla_nest_end(skb, chunks_attr); | |
6439 | genlmsg_end(skb, hdr); | |
7715023a | 6440 | devl_unlock(devlink); |
437ebfd9 | 6441 | devlink_put(devlink); |
4e54795a AV |
6442 | return skb->len; |
6443 | ||
6444 | nla_put_failure: | |
6445 | genlmsg_cancel(skb, hdr); | |
6446 | out_unlock: | |
7715023a | 6447 | devl_unlock(devlink); |
437ebfd9 | 6448 | devlink_put(devlink); |
fdd41ec2 | 6449 | return err; |
4e54795a AV |
6450 | } |
6451 | ||
f9cf2288 JK |
6452 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) |
6453 | { | |
f94b6063 JP |
6454 | if (!req->msg) |
6455 | return 0; | |
f9cf2288 JK |
6456 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); |
6457 | } | |
6458 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
6459 | ||
b5872cd0 VV |
6460 | int devlink_info_board_serial_number_put(struct devlink_info_req *req, |
6461 | const char *bsn) | |
6462 | { | |
f94b6063 JP |
6463 | if (!req->msg) |
6464 | return 0; | |
b5872cd0 VV |
6465 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_BOARD_SERIAL_NUMBER, |
6466 | bsn); | |
6467 | } | |
6468 | EXPORT_SYMBOL_GPL(devlink_info_board_serial_number_put); | |
6469 | ||
fc6fae7d JK |
6470 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
6471 | const char *version_name, | |
bb670123 JP |
6472 | const char *version_value, |
6473 | enum devlink_info_version_type version_type) | |
fc6fae7d JK |
6474 | { |
6475 | struct nlattr *nest; | |
6476 | int err; | |
6477 | ||
f94b6063 JP |
6478 | if (req->version_cb) |
6479 | req->version_cb(version_name, version_type, | |
6480 | req->version_cb_priv); | |
6481 | ||
6482 | if (!req->msg) | |
6483 | return 0; | |
6484 | ||
ae0be8de | 6485 | nest = nla_nest_start_noflag(req->msg, attr); |
fc6fae7d JK |
6486 | if (!nest) |
6487 | return -EMSGSIZE; | |
6488 | ||
6489 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
6490 | version_name); | |
6491 | if (err) | |
6492 | goto nla_put_failure; | |
6493 | ||
6494 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
6495 | version_value); | |
6496 | if (err) | |
6497 | goto nla_put_failure; | |
6498 | ||
6499 | nla_nest_end(req->msg, nest); | |
6500 | ||
6501 | return 0; | |
6502 | ||
6503 | nla_put_failure: | |
6504 | nla_nest_cancel(req->msg, nest); | |
6505 | return err; | |
6506 | } | |
6507 | ||
6508 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
6509 | const char *version_name, | |
6510 | const char *version_value) | |
6511 | { | |
6512 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
bb670123 JP |
6513 | version_name, version_value, |
6514 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6515 | } |
6516 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
6517 | ||
6518 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
6519 | const char *version_name, | |
6520 | const char *version_value) | |
6521 | { | |
6522 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
bb670123 JP |
6523 | version_name, version_value, |
6524 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6525 | } |
6526 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
6527 | ||
bb670123 JP |
6528 | int devlink_info_version_stored_put_ext(struct devlink_info_req *req, |
6529 | const char *version_name, | |
6530 | const char *version_value, | |
6531 | enum devlink_info_version_type version_type) | |
6532 | { | |
6533 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
6534 | version_name, version_value, | |
6535 | version_type); | |
6536 | } | |
6537 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put_ext); | |
6538 | ||
fc6fae7d JK |
6539 | int devlink_info_version_running_put(struct devlink_info_req *req, |
6540 | const char *version_name, | |
6541 | const char *version_value) | |
6542 | { | |
6543 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
bb670123 JP |
6544 | version_name, version_value, |
6545 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6546 | } |
6547 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
6548 | ||
bb670123 JP |
6549 | int devlink_info_version_running_put_ext(struct devlink_info_req *req, |
6550 | const char *version_name, | |
6551 | const char *version_value, | |
6552 | enum devlink_info_version_type version_type) | |
6553 | { | |
6554 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
6555 | version_name, version_value, | |
6556 | version_type); | |
6557 | } | |
6558 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put_ext); | |
6559 | ||
226bf980 VM |
6560 | static int devlink_nl_driver_info_get(struct device_driver *drv, |
6561 | struct devlink_info_req *req) | |
6562 | { | |
6563 | if (!drv) | |
6564 | return 0; | |
6565 | ||
6566 | if (drv->name[0]) | |
6567 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, | |
6568 | drv->name); | |
6569 | ||
6570 | return 0; | |
6571 | } | |
6572 | ||
f9cf2288 JK |
6573 | static int |
6574 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
6575 | enum devlink_command cmd, u32 portid, | |
6576 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
6577 | { | |
226bf980 | 6578 | struct device *dev = devlink_to_dev(devlink); |
f94b6063 | 6579 | struct devlink_info_req req = {}; |
f9cf2288 JK |
6580 | void *hdr; |
6581 | int err; | |
6582 | ||
6583 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6584 | if (!hdr) | |
6585 | return -EMSGSIZE; | |
6586 | ||
6587 | err = -EMSGSIZE; | |
6588 | if (devlink_nl_put_handle(msg, devlink)) | |
6589 | goto err_cancel_msg; | |
6590 | ||
6591 | req.msg = msg; | |
c5cd7c86 VM |
6592 | if (devlink->ops->info_get) { |
6593 | err = devlink->ops->info_get(devlink, &req, extack); | |
6594 | if (err) | |
6595 | goto err_cancel_msg; | |
6596 | } | |
f9cf2288 | 6597 | |
226bf980 VM |
6598 | err = devlink_nl_driver_info_get(dev->driver, &req); |
6599 | if (err) | |
6600 | goto err_cancel_msg; | |
6601 | ||
f9cf2288 JK |
6602 | genlmsg_end(msg, hdr); |
6603 | return 0; | |
6604 | ||
6605 | err_cancel_msg: | |
6606 | genlmsg_cancel(msg, hdr); | |
6607 | return err; | |
6608 | } | |
6609 | ||
6610 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
6611 | struct genl_info *info) | |
6612 | { | |
6613 | struct devlink *devlink = info->user_ptr[0]; | |
6614 | struct sk_buff *msg; | |
6615 | int err; | |
6616 | ||
f9cf2288 JK |
6617 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
6618 | if (!msg) | |
6619 | return -ENOMEM; | |
6620 | ||
6621 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
6622 | info->snd_portid, info->snd_seq, 0, | |
6623 | info->extack); | |
6624 | if (err) { | |
6625 | nlmsg_free(msg); | |
6626 | return err; | |
6627 | } | |
6628 | ||
6629 | return genlmsg_reply(msg, info); | |
6630 | } | |
6631 | ||
5ce76d78 JK |
6632 | static int |
6633 | devlink_nl_cmd_info_get_dump_one(struct sk_buff *msg, struct devlink *devlink, | |
6634 | struct netlink_callback *cb) | |
f9cf2288 | 6635 | { |
5ce76d78 | 6636 | int err; |
c62c2cfb | 6637 | |
5ce76d78 JK |
6638 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, |
6639 | NETLINK_CB(cb->skb).portid, | |
6640 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
6641 | cb->extack); | |
6642 | if (err == -EOPNOTSUPP) | |
6643 | err = 0; | |
6644 | return err; | |
f9cf2288 JK |
6645 | } |
6646 | ||
5ce76d78 JK |
6647 | const struct devlink_gen_cmd devl_gen_info = { |
6648 | .dump_one = devlink_nl_cmd_info_get_dump_one, | |
6649 | }; | |
6650 | ||
1db64e87 EBE |
6651 | struct devlink_fmsg_item { |
6652 | struct list_head list; | |
6653 | int attrtype; | |
6654 | u8 nla_type; | |
6655 | u16 len; | |
d2afb41a | 6656 | int value[]; |
1db64e87 EBE |
6657 | }; |
6658 | ||
6659 | struct devlink_fmsg { | |
6660 | struct list_head item_list; | |
573ed90a AL |
6661 | bool putting_binary; /* This flag forces enclosing of binary data |
6662 | * in an array brackets. It forces using | |
6663 | * of designated API: | |
6664 | * devlink_fmsg_binary_pair_nest_start() | |
6665 | * devlink_fmsg_binary_pair_nest_end() | |
6666 | */ | |
1db64e87 EBE |
6667 | }; |
6668 | ||
6669 | static struct devlink_fmsg *devlink_fmsg_alloc(void) | |
6670 | { | |
6671 | struct devlink_fmsg *fmsg; | |
6672 | ||
6673 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); | |
6674 | if (!fmsg) | |
6675 | return NULL; | |
6676 | ||
6677 | INIT_LIST_HEAD(&fmsg->item_list); | |
6678 | ||
6679 | return fmsg; | |
6680 | } | |
6681 | ||
6682 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) | |
6683 | { | |
6684 | struct devlink_fmsg_item *item, *tmp; | |
6685 | ||
6686 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { | |
6687 | list_del(&item->list); | |
6688 | kfree(item); | |
6689 | } | |
6690 | kfree(fmsg); | |
6691 | } | |
6692 | ||
6693 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, | |
6694 | int attrtype) | |
6695 | { | |
6696 | struct devlink_fmsg_item *item; | |
6697 | ||
6698 | item = kzalloc(sizeof(*item), GFP_KERNEL); | |
6699 | if (!item) | |
6700 | return -ENOMEM; | |
6701 | ||
6702 | item->attrtype = attrtype; | |
6703 | list_add_tail(&item->list, &fmsg->item_list); | |
6704 | ||
6705 | return 0; | |
6706 | } | |
6707 | ||
6708 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) | |
6709 | { | |
573ed90a AL |
6710 | if (fmsg->putting_binary) |
6711 | return -EINVAL; | |
6712 | ||
1db64e87 EBE |
6713 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
6714 | } | |
6715 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); | |
6716 | ||
6717 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) | |
6718 | { | |
573ed90a AL |
6719 | if (fmsg->putting_binary) |
6720 | return -EINVAL; | |
6721 | ||
1db64e87 EBE |
6722 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
6723 | } | |
6724 | ||
6725 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) | |
6726 | { | |
573ed90a AL |
6727 | if (fmsg->putting_binary) |
6728 | return -EINVAL; | |
6729 | ||
1db64e87 EBE |
6730 | return devlink_fmsg_nest_end(fmsg); |
6731 | } | |
6732 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); | |
6733 | ||
6734 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) | |
6735 | ||
6736 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) | |
6737 | { | |
6738 | struct devlink_fmsg_item *item; | |
6739 | ||
573ed90a AL |
6740 | if (fmsg->putting_binary) |
6741 | return -EINVAL; | |
6742 | ||
1db64e87 EBE |
6743 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
6744 | return -EMSGSIZE; | |
6745 | ||
6746 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); | |
6747 | if (!item) | |
6748 | return -ENOMEM; | |
6749 | ||
6750 | item->nla_type = NLA_NUL_STRING; | |
6751 | item->len = strlen(name) + 1; | |
6752 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; | |
6753 | memcpy(&item->value, name, item->len); | |
6754 | list_add_tail(&item->list, &fmsg->item_list); | |
6755 | ||
6756 | return 0; | |
6757 | } | |
6758 | ||
6759 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) | |
6760 | { | |
6761 | int err; | |
6762 | ||
573ed90a AL |
6763 | if (fmsg->putting_binary) |
6764 | return -EINVAL; | |
6765 | ||
1db64e87 EBE |
6766 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
6767 | if (err) | |
6768 | return err; | |
6769 | ||
6770 | err = devlink_fmsg_put_name(fmsg, name); | |
6771 | if (err) | |
6772 | return err; | |
6773 | ||
6774 | return 0; | |
6775 | } | |
6776 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); | |
6777 | ||
6778 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) | |
6779 | { | |
573ed90a AL |
6780 | if (fmsg->putting_binary) |
6781 | return -EINVAL; | |
6782 | ||
1db64e87 EBE |
6783 | return devlink_fmsg_nest_end(fmsg); |
6784 | } | |
6785 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); | |
6786 | ||
6787 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, | |
6788 | const char *name) | |
6789 | { | |
6790 | int err; | |
6791 | ||
573ed90a AL |
6792 | if (fmsg->putting_binary) |
6793 | return -EINVAL; | |
6794 | ||
1db64e87 EBE |
6795 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
6796 | if (err) | |
6797 | return err; | |
6798 | ||
6799 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); | |
6800 | if (err) | |
6801 | return err; | |
6802 | ||
6803 | return 0; | |
6804 | } | |
6805 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); | |
6806 | ||
6807 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) | |
6808 | { | |
6809 | int err; | |
6810 | ||
573ed90a AL |
6811 | if (fmsg->putting_binary) |
6812 | return -EINVAL; | |
6813 | ||
1db64e87 EBE |
6814 | err = devlink_fmsg_nest_end(fmsg); |
6815 | if (err) | |
6816 | return err; | |
6817 | ||
6818 | err = devlink_fmsg_nest_end(fmsg); | |
6819 | if (err) | |
6820 | return err; | |
6821 | ||
6822 | return 0; | |
6823 | } | |
6824 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); | |
6825 | ||
573ed90a AL |
6826 | int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg, |
6827 | const char *name) | |
6828 | { | |
6829 | int err; | |
6830 | ||
6831 | err = devlink_fmsg_arr_pair_nest_start(fmsg, name); | |
6832 | if (err) | |
6833 | return err; | |
6834 | ||
6835 | fmsg->putting_binary = true; | |
6836 | return err; | |
6837 | } | |
6838 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start); | |
6839 | ||
6840 | int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg) | |
6841 | { | |
6842 | if (!fmsg->putting_binary) | |
6843 | return -EINVAL; | |
6844 | ||
6845 | fmsg->putting_binary = false; | |
6846 | return devlink_fmsg_arr_pair_nest_end(fmsg); | |
6847 | } | |
6848 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end); | |
6849 | ||
1db64e87 EBE |
6850 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
6851 | const void *value, u16 value_len, | |
6852 | u8 value_nla_type) | |
6853 | { | |
6854 | struct devlink_fmsg_item *item; | |
6855 | ||
6856 | if (value_len > DEVLINK_FMSG_MAX_SIZE) | |
6857 | return -EMSGSIZE; | |
6858 | ||
6859 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); | |
6860 | if (!item) | |
6861 | return -ENOMEM; | |
6862 | ||
6863 | item->nla_type = value_nla_type; | |
6864 | item->len = value_len; | |
6865 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
6866 | memcpy(&item->value, value, item->len); | |
6867 | list_add_tail(&item->list, &fmsg->item_list); | |
6868 | ||
6869 | return 0; | |
6870 | } | |
6871 | ||
6db9350a | 6872 | static int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) |
1db64e87 | 6873 | { |
573ed90a AL |
6874 | if (fmsg->putting_binary) |
6875 | return -EINVAL; | |
6876 | ||
1db64e87 EBE |
6877 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
6878 | } | |
1db64e87 | 6879 | |
6db9350a | 6880 | static int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) |
1db64e87 | 6881 | { |
573ed90a AL |
6882 | if (fmsg->putting_binary) |
6883 | return -EINVAL; | |
6884 | ||
1db64e87 EBE |
6885 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
6886 | } | |
1db64e87 EBE |
6887 | |
6888 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) | |
6889 | { | |
573ed90a AL |
6890 | if (fmsg->putting_binary) |
6891 | return -EINVAL; | |
6892 | ||
1db64e87 EBE |
6893 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
6894 | } | |
6895 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); | |
6896 | ||
6db9350a | 6897 | static int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) |
1db64e87 | 6898 | { |
573ed90a AL |
6899 | if (fmsg->putting_binary) |
6900 | return -EINVAL; | |
6901 | ||
1db64e87 EBE |
6902 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
6903 | } | |
1db64e87 EBE |
6904 | |
6905 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) | |
6906 | { | |
573ed90a AL |
6907 | if (fmsg->putting_binary) |
6908 | return -EINVAL; | |
6909 | ||
1db64e87 EBE |
6910 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
6911 | NLA_NUL_STRING); | |
6912 | } | |
6913 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); | |
6914 | ||
573ed90a AL |
6915 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
6916 | u16 value_len) | |
1db64e87 | 6917 | { |
573ed90a AL |
6918 | if (!fmsg->putting_binary) |
6919 | return -EINVAL; | |
6920 | ||
1db64e87 EBE |
6921 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
6922 | } | |
573ed90a | 6923 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
1db64e87 EBE |
6924 | |
6925 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6926 | bool value) | |
6927 | { | |
6928 | int err; | |
6929 | ||
6930 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6931 | if (err) | |
6932 | return err; | |
6933 | ||
6934 | err = devlink_fmsg_bool_put(fmsg, value); | |
6935 | if (err) | |
6936 | return err; | |
6937 | ||
6938 | err = devlink_fmsg_pair_nest_end(fmsg); | |
6939 | if (err) | |
6940 | return err; | |
6941 | ||
6942 | return 0; | |
6943 | } | |
6944 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); | |
6945 | ||
6946 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6947 | u8 value) | |
6948 | { | |
6949 | int err; | |
6950 | ||
6951 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6952 | if (err) | |
6953 | return err; | |
6954 | ||
6955 | err = devlink_fmsg_u8_put(fmsg, value); | |
6956 | if (err) | |
6957 | return err; | |
6958 | ||
6959 | err = devlink_fmsg_pair_nest_end(fmsg); | |
6960 | if (err) | |
6961 | return err; | |
6962 | ||
6963 | return 0; | |
6964 | } | |
6965 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); | |
6966 | ||
6967 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6968 | u32 value) | |
6969 | { | |
6970 | int err; | |
6971 | ||
6972 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6973 | if (err) | |
6974 | return err; | |
6975 | ||
6976 | err = devlink_fmsg_u32_put(fmsg, value); | |
6977 | if (err) | |
6978 | return err; | |
6979 | ||
6980 | err = devlink_fmsg_pair_nest_end(fmsg); | |
6981 | if (err) | |
6982 | return err; | |
6983 | ||
6984 | return 0; | |
6985 | } | |
6986 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); | |
6987 | ||
6988 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6989 | u64 value) | |
6990 | { | |
6991 | int err; | |
6992 | ||
6993 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6994 | if (err) | |
6995 | return err; | |
6996 | ||
6997 | err = devlink_fmsg_u64_put(fmsg, value); | |
6998 | if (err) | |
6999 | return err; | |
7000 | ||
7001 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7002 | if (err) | |
7003 | return err; | |
7004 | ||
7005 | return 0; | |
7006 | } | |
7007 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); | |
7008 | ||
7009 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7010 | const char *value) | |
7011 | { | |
7012 | int err; | |
7013 | ||
7014 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7015 | if (err) | |
7016 | return err; | |
7017 | ||
7018 | err = devlink_fmsg_string_put(fmsg, value); | |
7019 | if (err) | |
7020 | return err; | |
7021 | ||
7022 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7023 | if (err) | |
7024 | return err; | |
7025 | ||
7026 | return 0; | |
7027 | } | |
7028 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); | |
7029 | ||
7030 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
e2cde864 | 7031 | const void *value, u32 value_len) |
1db64e87 | 7032 | { |
e2cde864 | 7033 | u32 data_size; |
573ed90a | 7034 | int end_err; |
e2cde864 | 7035 | u32 offset; |
1db64e87 EBE |
7036 | int err; |
7037 | ||
573ed90a | 7038 | err = devlink_fmsg_binary_pair_nest_start(fmsg, name); |
1db64e87 EBE |
7039 | if (err) |
7040 | return err; | |
7041 | ||
e2cde864 AL |
7042 | for (offset = 0; offset < value_len; offset += data_size) { |
7043 | data_size = value_len - offset; | |
7044 | if (data_size > DEVLINK_FMSG_MAX_SIZE) | |
7045 | data_size = DEVLINK_FMSG_MAX_SIZE; | |
7046 | err = devlink_fmsg_binary_put(fmsg, value + offset, data_size); | |
7047 | if (err) | |
573ed90a AL |
7048 | break; |
7049 | /* Exit from loop with a break (instead of | |
7050 | * return) to make sure putting_binary is turned off in | |
7051 | * devlink_fmsg_binary_pair_nest_end | |
7052 | */ | |
e2cde864 | 7053 | } |
1db64e87 | 7054 | |
573ed90a AL |
7055 | end_err = devlink_fmsg_binary_pair_nest_end(fmsg); |
7056 | if (end_err) | |
7057 | err = end_err; | |
1db64e87 | 7058 | |
573ed90a | 7059 | return err; |
1db64e87 EBE |
7060 | } |
7061 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); | |
7062 | ||
7063 | static int | |
7064 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7065 | { | |
7066 | switch (msg->nla_type) { | |
7067 | case NLA_FLAG: | |
7068 | case NLA_U8: | |
7069 | case NLA_U32: | |
7070 | case NLA_U64: | |
7071 | case NLA_NUL_STRING: | |
7072 | case NLA_BINARY: | |
7073 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, | |
7074 | msg->nla_type); | |
7075 | default: | |
7076 | return -EINVAL; | |
7077 | } | |
7078 | } | |
7079 | ||
7080 | static int | |
7081 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7082 | { | |
7083 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
7084 | u8 tmp; | |
7085 | ||
7086 | switch (msg->nla_type) { | |
7087 | case NLA_FLAG: | |
7088 | /* Always provide flag data, regardless of its value */ | |
7089 | tmp = *(bool *) msg->value; | |
7090 | ||
7091 | return nla_put_u8(skb, attrtype, tmp); | |
7092 | case NLA_U8: | |
7093 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); | |
7094 | case NLA_U32: | |
7095 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); | |
7096 | case NLA_U64: | |
7097 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, | |
7098 | DEVLINK_ATTR_PAD); | |
7099 | case NLA_NUL_STRING: | |
7100 | return nla_put_string(skb, attrtype, (char *) &msg->value); | |
7101 | case NLA_BINARY: | |
7102 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); | |
7103 | default: | |
7104 | return -EINVAL; | |
7105 | } | |
7106 | } | |
7107 | ||
7108 | static int | |
7109 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, | |
7110 | int *start) | |
7111 | { | |
7112 | struct devlink_fmsg_item *item; | |
7113 | struct nlattr *fmsg_nlattr; | |
4373a023 | 7114 | int err = 0; |
1db64e87 | 7115 | int i = 0; |
1db64e87 | 7116 | |
ae0be8de | 7117 | fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG); |
1db64e87 EBE |
7118 | if (!fmsg_nlattr) |
7119 | return -EMSGSIZE; | |
7120 | ||
7121 | list_for_each_entry(item, &fmsg->item_list, list) { | |
7122 | if (i < *start) { | |
7123 | i++; | |
7124 | continue; | |
7125 | } | |
7126 | ||
7127 | switch (item->attrtype) { | |
7128 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: | |
7129 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: | |
7130 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: | |
7131 | case DEVLINK_ATTR_FMSG_NEST_END: | |
7132 | err = nla_put_flag(skb, item->attrtype); | |
7133 | break; | |
7134 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: | |
7135 | err = devlink_fmsg_item_fill_type(item, skb); | |
7136 | if (err) | |
7137 | break; | |
7138 | err = devlink_fmsg_item_fill_data(item, skb); | |
7139 | break; | |
7140 | case DEVLINK_ATTR_FMSG_OBJ_NAME: | |
7141 | err = nla_put_string(skb, item->attrtype, | |
7142 | (char *) &item->value); | |
7143 | break; | |
7144 | default: | |
7145 | err = -EINVAL; | |
7146 | break; | |
7147 | } | |
7148 | if (!err) | |
7149 | *start = ++i; | |
7150 | else | |
7151 | break; | |
7152 | } | |
7153 | ||
7154 | nla_nest_end(skb, fmsg_nlattr); | |
7155 | return err; | |
7156 | } | |
7157 | ||
7158 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, | |
7159 | struct genl_info *info, | |
7160 | enum devlink_command cmd, int flags) | |
7161 | { | |
7162 | struct nlmsghdr *nlh; | |
7163 | struct sk_buff *skb; | |
7164 | bool last = false; | |
7165 | int index = 0; | |
7166 | void *hdr; | |
7167 | int err; | |
7168 | ||
7169 | while (!last) { | |
7170 | int tmp_index = index; | |
7171 | ||
7172 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7173 | if (!skb) | |
7174 | return -ENOMEM; | |
7175 | ||
7176 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7177 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); | |
7178 | if (!hdr) { | |
7179 | err = -EMSGSIZE; | |
7180 | goto nla_put_failure; | |
7181 | } | |
7182 | ||
7183 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7184 | if (!err) | |
7185 | last = true; | |
7186 | else if (err != -EMSGSIZE || tmp_index == index) | |
7187 | goto nla_put_failure; | |
7188 | ||
7189 | genlmsg_end(skb, hdr); | |
7190 | err = genlmsg_reply(skb, info); | |
7191 | if (err) | |
7192 | return err; | |
7193 | } | |
7194 | ||
7195 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7196 | if (!skb) | |
7197 | return -ENOMEM; | |
7198 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7199 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
7200 | if (!nlh) { | |
7201 | err = -EMSGSIZE; | |
7202 | goto nla_put_failure; | |
7203 | } | |
1db64e87 | 7204 | |
fde55ea7 | 7205 | return genlmsg_reply(skb, info); |
1db64e87 EBE |
7206 | |
7207 | nla_put_failure: | |
7208 | nlmsg_free(skb); | |
7209 | return err; | |
7210 | } | |
7211 | ||
e44ef4e4 AL |
7212 | static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
7213 | struct netlink_callback *cb, | |
7214 | enum devlink_command cmd) | |
7215 | { | |
3015f822 JK |
7216 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
7217 | int index = state->idx; | |
e44ef4e4 AL |
7218 | int tmp_index = index; |
7219 | void *hdr; | |
7220 | int err; | |
7221 | ||
7222 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7223 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd); | |
7224 | if (!hdr) { | |
7225 | err = -EMSGSIZE; | |
7226 | goto nla_put_failure; | |
7227 | } | |
7228 | ||
7229 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7230 | if ((err && err != -EMSGSIZE) || tmp_index == index) | |
7231 | goto nla_put_failure; | |
7232 | ||
3015f822 | 7233 | state->idx = index; |
e44ef4e4 AL |
7234 | genlmsg_end(skb, hdr); |
7235 | return skb->len; | |
7236 | ||
7237 | nla_put_failure: | |
7238 | genlmsg_cancel(skb, hdr); | |
7239 | return err; | |
7240 | } | |
7241 | ||
a0bdcc59 EBE |
7242 | struct devlink_health_reporter { |
7243 | struct list_head list; | |
7244 | void *priv; | |
7245 | const struct devlink_health_reporter_ops *ops; | |
7246 | struct devlink *devlink; | |
f4f54166 | 7247 | struct devlink_port *devlink_port; |
c8e1da0b EBE |
7248 | struct devlink_fmsg *dump_fmsg; |
7249 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ | |
a0bdcc59 EBE |
7250 | u64 graceful_period; |
7251 | bool auto_recover; | |
48bb52c8 | 7252 | bool auto_dump; |
a0bdcc59 | 7253 | u8 health_state; |
c8e1da0b | 7254 | u64 dump_ts; |
d279505b | 7255 | u64 dump_real_ts; |
c8e1da0b EBE |
7256 | u64 error_count; |
7257 | u64 recovery_count; | |
7258 | u64 last_recovery_ts; | |
7259 | }; | |
7260 | ||
a0bdcc59 EBE |
7261 | void * |
7262 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) | |
7263 | { | |
7264 | return reporter->priv; | |
7265 | } | |
7266 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); | |
7267 | ||
7268 | static struct devlink_health_reporter * | |
bd821005 | 7269 | __devlink_health_reporter_find_by_name(struct list_head *reporter_list, |
bd821005 | 7270 | const char *reporter_name) |
a0bdcc59 EBE |
7271 | { |
7272 | struct devlink_health_reporter *reporter; | |
7273 | ||
bd821005 | 7274 | list_for_each_entry(reporter, reporter_list, list) |
a0bdcc59 EBE |
7275 | if (!strcmp(reporter->ops->name, reporter_name)) |
7276 | return reporter; | |
7277 | return NULL; | |
7278 | } | |
7279 | ||
bd821005 VT |
7280 | static struct devlink_health_reporter * |
7281 | devlink_health_reporter_find_by_name(struct devlink *devlink, | |
7282 | const char *reporter_name) | |
7283 | { | |
7284 | return __devlink_health_reporter_find_by_name(&devlink->reporter_list, | |
bd821005 VT |
7285 | reporter_name); |
7286 | } | |
7287 | ||
f4f54166 VT |
7288 | static struct devlink_health_reporter * |
7289 | devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port, | |
7290 | const char *reporter_name) | |
7291 | { | |
7292 | return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list, | |
f4f54166 VT |
7293 | reporter_name); |
7294 | } | |
7295 | ||
c57544b3 VT |
7296 | static struct devlink_health_reporter * |
7297 | __devlink_health_reporter_create(struct devlink *devlink, | |
7298 | const struct devlink_health_reporter_ops *ops, | |
7299 | u64 graceful_period, void *priv) | |
7300 | { | |
7301 | struct devlink_health_reporter *reporter; | |
7302 | ||
7303 | if (WARN_ON(graceful_period && !ops->recover)) | |
7304 | return ERR_PTR(-EINVAL); | |
7305 | ||
7306 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); | |
7307 | if (!reporter) | |
7308 | return ERR_PTR(-ENOMEM); | |
7309 | ||
7310 | reporter->priv = priv; | |
7311 | reporter->ops = ops; | |
7312 | reporter->devlink = devlink; | |
7313 | reporter->graceful_period = graceful_period; | |
7314 | reporter->auto_recover = !!ops->recover; | |
7315 | reporter->auto_dump = !!ops->dump; | |
7316 | mutex_init(&reporter->dump_lock); | |
c57544b3 VT |
7317 | return reporter; |
7318 | } | |
7319 | ||
15c724b9 | 7320 | /** |
dfdfd130 JP |
7321 | * devl_port_health_reporter_create - create devlink health reporter for |
7322 | * specified port instance | |
15c724b9 VT |
7323 | * |
7324 | * @port: devlink_port which should contain the new reporter | |
7325 | * @ops: ops | |
7326 | * @graceful_period: to avoid recovery loops, in msecs | |
7327 | * @priv: priv | |
7328 | */ | |
7329 | struct devlink_health_reporter * | |
dfdfd130 JP |
7330 | devl_port_health_reporter_create(struct devlink_port *port, |
7331 | const struct devlink_health_reporter_ops *ops, | |
7332 | u64 graceful_period, void *priv) | |
15c724b9 VT |
7333 | { |
7334 | struct devlink_health_reporter *reporter; | |
7335 | ||
dfdfd130 | 7336 | devl_assert_locked(port->devlink); |
1dea3b4e | 7337 | |
15c724b9 | 7338 | if (__devlink_health_reporter_find_by_name(&port->reporter_list, |
1dea3b4e JP |
7339 | ops->name)) |
7340 | return ERR_PTR(-EEXIST); | |
15c724b9 VT |
7341 | |
7342 | reporter = __devlink_health_reporter_create(port->devlink, ops, | |
7343 | graceful_period, priv); | |
7344 | if (IS_ERR(reporter)) | |
1dea3b4e | 7345 | return reporter; |
15c724b9 VT |
7346 | |
7347 | reporter->devlink_port = port; | |
7348 | list_add_tail(&reporter->list, &port->reporter_list); | |
15c724b9 VT |
7349 | return reporter; |
7350 | } | |
dfdfd130 JP |
7351 | EXPORT_SYMBOL_GPL(devl_port_health_reporter_create); |
7352 | ||
7353 | struct devlink_health_reporter * | |
7354 | devlink_port_health_reporter_create(struct devlink_port *port, | |
7355 | const struct devlink_health_reporter_ops *ops, | |
7356 | u64 graceful_period, void *priv) | |
7357 | { | |
7358 | struct devlink_health_reporter *reporter; | |
7359 | struct devlink *devlink = port->devlink; | |
7360 | ||
7361 | devl_lock(devlink); | |
7362 | reporter = devl_port_health_reporter_create(port, ops, | |
7363 | graceful_period, priv); | |
7364 | devl_unlock(devlink); | |
7365 | return reporter; | |
7366 | } | |
15c724b9 VT |
7367 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create); |
7368 | ||
a0bdcc59 | 7369 | /** |
dfdfd130 | 7370 | * devl_health_reporter_create - create devlink health reporter |
a0bdcc59 EBE |
7371 | * |
7372 | * @devlink: devlink | |
7373 | * @ops: ops | |
7374 | * @graceful_period: to avoid recovery loops, in msecs | |
a0bdcc59 EBE |
7375 | * @priv: priv |
7376 | */ | |
7377 | struct devlink_health_reporter * | |
dfdfd130 JP |
7378 | devl_health_reporter_create(struct devlink *devlink, |
7379 | const struct devlink_health_reporter_ops *ops, | |
7380 | u64 graceful_period, void *priv) | |
a0bdcc59 EBE |
7381 | { |
7382 | struct devlink_health_reporter *reporter; | |
7383 | ||
dfdfd130 | 7384 | devl_assert_locked(devlink); |
1dea3b4e JP |
7385 | |
7386 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) | |
7387 | return ERR_PTR(-EEXIST); | |
a0bdcc59 | 7388 | |
c57544b3 VT |
7389 | reporter = __devlink_health_reporter_create(devlink, ops, |
7390 | graceful_period, priv); | |
7391 | if (IS_ERR(reporter)) | |
1dea3b4e | 7392 | return reporter; |
a0bdcc59 | 7393 | |
a0bdcc59 | 7394 | list_add_tail(&reporter->list, &devlink->reporter_list); |
a0bdcc59 EBE |
7395 | return reporter; |
7396 | } | |
dfdfd130 JP |
7397 | EXPORT_SYMBOL_GPL(devl_health_reporter_create); |
7398 | ||
7399 | struct devlink_health_reporter * | |
7400 | devlink_health_reporter_create(struct devlink *devlink, | |
7401 | const struct devlink_health_reporter_ops *ops, | |
7402 | u64 graceful_period, void *priv) | |
7403 | { | |
7404 | struct devlink_health_reporter *reporter; | |
7405 | ||
7406 | devl_lock(devlink); | |
7407 | reporter = devl_health_reporter_create(devlink, ops, | |
7408 | graceful_period, priv); | |
7409 | devl_unlock(devlink); | |
7410 | return reporter; | |
7411 | } | |
a0bdcc59 EBE |
7412 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); |
7413 | ||
3c5584bf VT |
7414 | static void |
7415 | devlink_health_reporter_free(struct devlink_health_reporter *reporter) | |
7416 | { | |
7417 | mutex_destroy(&reporter->dump_lock); | |
7418 | if (reporter->dump_fmsg) | |
7419 | devlink_fmsg_free(reporter->dump_fmsg); | |
7420 | kfree(reporter); | |
7421 | } | |
7422 | ||
a0bdcc59 | 7423 | /** |
dfdfd130 | 7424 | * devl_health_reporter_destroy - destroy devlink health reporter |
a0bdcc59 EBE |
7425 | * |
7426 | * @reporter: devlink health reporter to destroy | |
7427 | */ | |
7428 | void | |
dfdfd130 | 7429 | devl_health_reporter_destroy(struct devlink_health_reporter *reporter) |
a0bdcc59 | 7430 | { |
dfdfd130 JP |
7431 | devl_assert_locked(reporter->devlink); |
7432 | ||
9f167327 | 7433 | list_del(&reporter->list); |
e994a75f | 7434 | devlink_health_reporter_free(reporter); |
a0bdcc59 | 7435 | } |
dfdfd130 JP |
7436 | EXPORT_SYMBOL_GPL(devl_health_reporter_destroy); |
7437 | ||
7438 | void | |
7439 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7440 | { | |
7441 | struct devlink *devlink = reporter->devlink; | |
7442 | ||
7443 | devl_lock(devlink); | |
7444 | devl_health_reporter_destroy(reporter); | |
7445 | devl_unlock(devlink); | |
7446 | } | |
a0bdcc59 EBE |
7447 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); |
7448 | ||
6ec8b6cd MS |
7449 | static int |
7450 | devlink_nl_health_reporter_fill(struct sk_buff *msg, | |
6ec8b6cd MS |
7451 | struct devlink_health_reporter *reporter, |
7452 | enum devlink_command cmd, u32 portid, | |
7453 | u32 seq, int flags) | |
7454 | { | |
7ca973dc | 7455 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7456 | struct nlattr *reporter_attr; |
7457 | void *hdr; | |
7458 | ||
7459 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
7460 | if (!hdr) | |
7461 | return -EMSGSIZE; | |
7462 | ||
7463 | if (devlink_nl_put_handle(msg, devlink)) | |
7464 | goto genlmsg_cancel; | |
7465 | ||
f4f54166 VT |
7466 | if (reporter->devlink_port) { |
7467 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, reporter->devlink_port->index)) | |
7468 | goto genlmsg_cancel; | |
7469 | } | |
6ec8b6cd MS |
7470 | reporter_attr = nla_nest_start_noflag(msg, |
7471 | DEVLINK_ATTR_HEALTH_REPORTER); | |
7472 | if (!reporter_attr) | |
7473 | goto genlmsg_cancel; | |
7474 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, | |
7475 | reporter->ops->name)) | |
7476 | goto reporter_nest_cancel; | |
7477 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, | |
7478 | reporter->health_state)) | |
7479 | goto reporter_nest_cancel; | |
7480 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, | |
7481 | reporter->error_count, DEVLINK_ATTR_PAD)) | |
7482 | goto reporter_nest_cancel; | |
7483 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, | |
7484 | reporter->recovery_count, DEVLINK_ATTR_PAD)) | |
7485 | goto reporter_nest_cancel; | |
7486 | if (reporter->ops->recover && | |
7487 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, | |
7488 | reporter->graceful_period, | |
7489 | DEVLINK_ATTR_PAD)) | |
7490 | goto reporter_nest_cancel; | |
7491 | if (reporter->ops->recover && | |
7492 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, | |
7493 | reporter->auto_recover)) | |
7494 | goto reporter_nest_cancel; | |
7495 | if (reporter->dump_fmsg && | |
7496 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, | |
7497 | jiffies_to_msecs(reporter->dump_ts), | |
7498 | DEVLINK_ATTR_PAD)) | |
7499 | goto reporter_nest_cancel; | |
7500 | if (reporter->dump_fmsg && | |
7501 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, | |
7502 | reporter->dump_real_ts, DEVLINK_ATTR_PAD)) | |
7503 | goto reporter_nest_cancel; | |
48bb52c8 EBE |
7504 | if (reporter->ops->dump && |
7505 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, | |
7506 | reporter->auto_dump)) | |
7507 | goto reporter_nest_cancel; | |
6ec8b6cd MS |
7508 | |
7509 | nla_nest_end(msg, reporter_attr); | |
7510 | genlmsg_end(msg, hdr); | |
7511 | return 0; | |
7512 | ||
7513 | reporter_nest_cancel: | |
7514 | nla_nest_end(msg, reporter_attr); | |
7515 | genlmsg_cancel: | |
7516 | genlmsg_cancel(msg, hdr); | |
7517 | return -EMSGSIZE; | |
7518 | } | |
7519 | ||
7520 | static void devlink_recover_notify(struct devlink_health_reporter *reporter, | |
7521 | enum devlink_command cmd) | |
7522 | { | |
cf530217 | 7523 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7524 | struct sk_buff *msg; |
7525 | int err; | |
7526 | ||
7527 | WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
cf530217 | 7528 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
6ec8b6cd MS |
7529 | |
7530 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7531 | if (!msg) | |
7532 | return; | |
7533 | ||
7ca973dc | 7534 | err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0); |
6ec8b6cd MS |
7535 | if (err) { |
7536 | nlmsg_free(msg); | |
7537 | return; | |
7538 | } | |
7539 | ||
cf530217 LR |
7540 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
7541 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
6ec8b6cd MS |
7542 | } |
7543 | ||
6181e5cb VG |
7544 | void |
7545 | devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter) | |
7546 | { | |
7547 | reporter->recovery_count++; | |
7548 | reporter->last_recovery_ts = jiffies; | |
7549 | } | |
7550 | EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done); | |
7551 | ||
c8e1da0b EBE |
7552 | static int |
7553 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, | |
e7a98105 | 7554 | void *priv_ctx, struct netlink_ext_ack *extack) |
c8e1da0b EBE |
7555 | { |
7556 | int err; | |
7557 | ||
40281820 JP |
7558 | if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY) |
7559 | return 0; | |
7560 | ||
c8e1da0b EBE |
7561 | if (!reporter->ops->recover) |
7562 | return -EOPNOTSUPP; | |
7563 | ||
e7a98105 | 7564 | err = reporter->ops->recover(reporter, priv_ctx, extack); |
c8e1da0b EBE |
7565 | if (err) |
7566 | return err; | |
7567 | ||
6181e5cb | 7568 | devlink_health_reporter_recovery_done(reporter); |
c8e1da0b | 7569 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
6ec8b6cd | 7570 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7571 | |
7572 | return 0; | |
7573 | } | |
7574 | ||
7575 | static void | |
7576 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) | |
7577 | { | |
7578 | if (!reporter->dump_fmsg) | |
7579 | return; | |
7580 | devlink_fmsg_free(reporter->dump_fmsg); | |
7581 | reporter->dump_fmsg = NULL; | |
7582 | } | |
7583 | ||
7584 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, | |
e7a98105 JP |
7585 | void *priv_ctx, |
7586 | struct netlink_ext_ack *extack) | |
c8e1da0b EBE |
7587 | { |
7588 | int err; | |
7589 | ||
7590 | if (!reporter->ops->dump) | |
7591 | return 0; | |
7592 | ||
7593 | if (reporter->dump_fmsg) | |
7594 | return 0; | |
7595 | ||
7596 | reporter->dump_fmsg = devlink_fmsg_alloc(); | |
7597 | if (!reporter->dump_fmsg) { | |
7598 | err = -ENOMEM; | |
7599 | return err; | |
7600 | } | |
7601 | ||
7602 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); | |
7603 | if (err) | |
7604 | goto dump_err; | |
7605 | ||
7606 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, | |
e7a98105 | 7607 | priv_ctx, extack); |
c8e1da0b EBE |
7608 | if (err) |
7609 | goto dump_err; | |
7610 | ||
7611 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); | |
7612 | if (err) | |
7613 | goto dump_err; | |
7614 | ||
7615 | reporter->dump_ts = jiffies; | |
d279505b | 7616 | reporter->dump_real_ts = ktime_get_real_ns(); |
c8e1da0b EBE |
7617 | |
7618 | return 0; | |
7619 | ||
7620 | dump_err: | |
7621 | devlink_health_dump_clear(reporter); | |
7622 | return err; | |
7623 | } | |
7624 | ||
7625 | int devlink_health_report(struct devlink_health_reporter *reporter, | |
7626 | const char *msg, void *priv_ctx) | |
7627 | { | |
a0a21adb | 7628 | enum devlink_health_reporter_state prev_health_state; |
c8e1da0b | 7629 | struct devlink *devlink = reporter->devlink; |
bea0c5c9 | 7630 | unsigned long recover_ts_threshold; |
c90005b5 | 7631 | int ret; |
c8e1da0b EBE |
7632 | |
7633 | /* write a log message of the current error */ | |
7634 | WARN_ON(!msg); | |
7635 | trace_devlink_health_report(devlink, reporter->ops->name, msg); | |
7636 | reporter->error_count++; | |
a0a21adb EBE |
7637 | prev_health_state = reporter->health_state; |
7638 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6ec8b6cd | 7639 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7640 | |
7641 | /* abort if the previous error wasn't recovered */ | |
bea0c5c9 AL |
7642 | recover_ts_threshold = reporter->last_recovery_ts + |
7643 | msecs_to_jiffies(reporter->graceful_period); | |
c8e1da0b | 7644 | if (reporter->auto_recover && |
a0a21adb | 7645 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
bea0c5c9 AL |
7646 | (reporter->last_recovery_ts && reporter->recovery_count && |
7647 | time_is_after_jiffies(recover_ts_threshold)))) { | |
c8e1da0b EBE |
7648 | trace_devlink_health_recover_aborted(devlink, |
7649 | reporter->ops->name, | |
7650 | reporter->health_state, | |
7651 | jiffies - | |
7652 | reporter->last_recovery_ts); | |
7653 | return -ECANCELED; | |
7654 | } | |
7655 | ||
48bb52c8 EBE |
7656 | if (reporter->auto_dump) { |
7657 | mutex_lock(&reporter->dump_lock); | |
7658 | /* store current dump of current error, for later analysis */ | |
7659 | devlink_health_do_dump(reporter, priv_ctx, NULL); | |
7660 | mutex_unlock(&reporter->dump_lock); | |
7661 | } | |
c8e1da0b | 7662 | |
c90005b5 MS |
7663 | if (!reporter->auto_recover) |
7664 | return 0; | |
c8e1da0b | 7665 | |
c90005b5 MS |
7666 | devl_lock(devlink); |
7667 | ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL); | |
7668 | devl_unlock(devlink); | |
7669 | ||
7670 | return ret; | |
c8e1da0b EBE |
7671 | } |
7672 | EXPORT_SYMBOL_GPL(devlink_health_report); | |
7673 | ||
7afe335a | 7674 | static struct devlink_health_reporter * |
e44ef4e4 AL |
7675 | devlink_health_reporter_get_from_attrs(struct devlink *devlink, |
7676 | struct nlattr **attrs) | |
7afe335a | 7677 | { |
f4f54166 | 7678 | struct devlink_port *devlink_port; |
7afe335a EBE |
7679 | char *reporter_name; |
7680 | ||
e44ef4e4 | 7681 | if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
7afe335a EBE |
7682 | return NULL; |
7683 | ||
e44ef4e4 | 7684 | reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
f4f54166 | 7685 | devlink_port = devlink_port_get_from_attrs(devlink, attrs); |
e994a75f JP |
7686 | if (IS_ERR(devlink_port)) |
7687 | return devlink_health_reporter_find_by_name(devlink, | |
7688 | reporter_name); | |
7689 | else | |
7690 | return devlink_port_health_reporter_find_by_name(devlink_port, | |
7691 | reporter_name); | |
b587bdaf MS |
7692 | } |
7693 | ||
e44ef4e4 AL |
7694 | static struct devlink_health_reporter * |
7695 | devlink_health_reporter_get_from_info(struct devlink *devlink, | |
7696 | struct genl_info *info) | |
7697 | { | |
7698 | return devlink_health_reporter_get_from_attrs(devlink, info->attrs); | |
7699 | } | |
7700 | ||
7701 | static struct devlink_health_reporter * | |
7702 | devlink_health_reporter_get_from_cb(struct netlink_callback *cb) | |
7703 | { | |
ee85da53 | 7704 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
e44ef4e4 | 7705 | struct devlink_health_reporter *reporter; |
ee85da53 | 7706 | struct nlattr **attrs = info->attrs; |
e44ef4e4 | 7707 | struct devlink *devlink; |
e44ef4e4 | 7708 | |
870c7ad4 | 7709 | devlink = devlink_get_from_attrs_lock(sock_net(cb->skb->sk), attrs); |
e44ef4e4 | 7710 | if (IS_ERR(devlink)) |
d3efc2a6 | 7711 | return NULL; |
870c7ad4 | 7712 | devl_unlock(devlink); |
e44ef4e4 AL |
7713 | |
7714 | reporter = devlink_health_reporter_get_from_attrs(devlink, attrs); | |
437ebfd9 | 7715 | devlink_put(devlink); |
e44ef4e4 | 7716 | return reporter; |
e44ef4e4 AL |
7717 | } |
7718 | ||
97ff3bd3 VG |
7719 | void |
7720 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, | |
7721 | enum devlink_health_reporter_state state) | |
7722 | { | |
7723 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && | |
7724 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) | |
7725 | return; | |
7726 | ||
7727 | if (reporter->health_state == state) | |
7728 | return; | |
7729 | ||
7730 | reporter->health_state = state; | |
7731 | trace_devlink_health_reporter_state_update(reporter->devlink, | |
7732 | reporter->ops->name, state); | |
7733 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
7734 | } | |
7735 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); | |
7736 | ||
7afe335a EBE |
7737 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
7738 | struct genl_info *info) | |
7739 | { | |
7740 | struct devlink *devlink = info->user_ptr[0]; | |
7741 | struct devlink_health_reporter *reporter; | |
7742 | struct sk_buff *msg; | |
7743 | int err; | |
7744 | ||
7745 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7746 | if (!reporter) | |
7747 | return -EINVAL; | |
7748 | ||
7749 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
e994a75f JP |
7750 | if (!msg) |
7751 | return -ENOMEM; | |
7afe335a | 7752 | |
7ca973dc | 7753 | err = devlink_nl_health_reporter_fill(msg, reporter, |
7afe335a EBE |
7754 | DEVLINK_CMD_HEALTH_REPORTER_GET, |
7755 | info->snd_portid, info->snd_seq, | |
7756 | 0); | |
7757 | if (err) { | |
7758 | nlmsg_free(msg); | |
e994a75f | 7759 | return err; |
7afe335a EBE |
7760 | } |
7761 | ||
e994a75f | 7762 | return genlmsg_reply(msg, info); |
7afe335a EBE |
7763 | } |
7764 | ||
7765 | static int | |
19be51a9 JP |
7766 | devlink_nl_cmd_health_reporter_get_dump_one(struct sk_buff *msg, |
7767 | struct devlink *devlink, | |
7768 | struct netlink_callback *cb) | |
7afe335a | 7769 | { |
3015f822 | 7770 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
19be51a9 JP |
7771 | struct devlink_health_reporter *reporter; |
7772 | struct devlink_port *port; | |
7773 | unsigned long port_index; | |
7774 | int idx = 0; | |
7afe335a EBE |
7775 | int err; |
7776 | ||
19be51a9 JP |
7777 | list_for_each_entry(reporter, &devlink->reporter_list, list) { |
7778 | if (idx < state->idx) { | |
7779 | idx++; | |
7780 | continue; | |
7781 | } | |
7782 | err = devlink_nl_health_reporter_fill(msg, reporter, | |
7783 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7784 | NETLINK_CB(cb->skb).portid, | |
7785 | cb->nlh->nlmsg_seq, | |
7786 | NLM_F_MULTI); | |
7787 | if (err) { | |
7788 | state->idx = idx; | |
7789 | return err; | |
7790 | } | |
7791 | idx++; | |
7792 | } | |
7793 | xa_for_each(&devlink->ports, port_index, port) { | |
7794 | list_for_each_entry(reporter, &port->reporter_list, list) { | |
20615659 | 7795 | if (idx < state->idx) { |
7afe335a EBE |
7796 | idx++; |
7797 | continue; | |
7798 | } | |
19be51a9 JP |
7799 | err = devlink_nl_health_reporter_fill(msg, reporter, |
7800 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7801 | NETLINK_CB(cb->skb).portid, | |
7802 | cb->nlh->nlmsg_seq, | |
7803 | NLM_F_MULTI); | |
7afe335a | 7804 | if (err) { |
a8f94707 | 7805 | state->idx = idx; |
19be51a9 | 7806 | return err; |
7afe335a EBE |
7807 | } |
7808 | idx++; | |
7809 | } | |
f4f54166 | 7810 | } |
19be51a9 JP |
7811 | |
7812 | return 0; | |
7afe335a EBE |
7813 | } |
7814 | ||
19be51a9 JP |
7815 | const struct devlink_gen_cmd devl_gen_health_reporter = { |
7816 | .dump_one = devlink_nl_cmd_health_reporter_get_dump_one, | |
7817 | }; | |
7818 | ||
a1e55ec0 EBE |
7819 | static int |
7820 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, | |
7821 | struct genl_info *info) | |
7822 | { | |
7823 | struct devlink *devlink = info->user_ptr[0]; | |
7824 | struct devlink_health_reporter *reporter; | |
7825 | ||
7826 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7827 | if (!reporter) | |
7828 | return -EINVAL; | |
7829 | ||
7830 | if (!reporter->ops->recover && | |
7831 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || | |
e994a75f JP |
7832 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) |
7833 | return -EOPNOTSUPP; | |
7834 | ||
48bb52c8 | 7835 | if (!reporter->ops->dump && |
e994a75f JP |
7836 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
7837 | return -EOPNOTSUPP; | |
a1e55ec0 EBE |
7838 | |
7839 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) | |
7840 | reporter->graceful_period = | |
7841 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); | |
7842 | ||
7843 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) | |
7844 | reporter->auto_recover = | |
7845 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); | |
7846 | ||
48bb52c8 EBE |
7847 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
7848 | reporter->auto_dump = | |
7849 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]); | |
7850 | ||
a1e55ec0 EBE |
7851 | return 0; |
7852 | } | |
7853 | ||
20a0943a EBE |
7854 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
7855 | struct genl_info *info) | |
7856 | { | |
7857 | struct devlink *devlink = info->user_ptr[0]; | |
7858 | struct devlink_health_reporter *reporter; | |
7859 | ||
7860 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7861 | if (!reporter) | |
7862 | return -EINVAL; | |
7863 | ||
e994a75f | 7864 | return devlink_health_reporter_recover(reporter, NULL, info->extack); |
20a0943a EBE |
7865 | } |
7866 | ||
fca42a27 EBE |
7867 | static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb, |
7868 | struct genl_info *info) | |
7869 | { | |
7870 | struct devlink *devlink = info->user_ptr[0]; | |
7871 | struct devlink_health_reporter *reporter; | |
7872 | struct devlink_fmsg *fmsg; | |
7873 | int err; | |
7874 | ||
7875 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7876 | if (!reporter) | |
7877 | return -EINVAL; | |
7878 | ||
e994a75f | 7879 | if (!reporter->ops->diagnose) |
fca42a27 EBE |
7880 | return -EOPNOTSUPP; |
7881 | ||
7882 | fmsg = devlink_fmsg_alloc(); | |
e994a75f | 7883 | if (!fmsg) |
fca42a27 EBE |
7884 | return -ENOMEM; |
7885 | ||
7886 | err = devlink_fmsg_obj_nest_start(fmsg); | |
7887 | if (err) | |
e994a75f | 7888 | return err; |
fca42a27 | 7889 | |
e7a98105 | 7890 | err = reporter->ops->diagnose(reporter, fmsg, info->extack); |
fca42a27 | 7891 | if (err) |
e994a75f | 7892 | return err; |
fca42a27 EBE |
7893 | |
7894 | err = devlink_fmsg_obj_nest_end(fmsg); | |
7895 | if (err) | |
e994a75f | 7896 | return err; |
fca42a27 | 7897 | |
e994a75f JP |
7898 | return devlink_fmsg_snd(fmsg, info, |
7899 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); | |
fca42a27 EBE |
7900 | } |
7901 | ||
e44ef4e4 AL |
7902 | static int |
7903 | devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb, | |
7904 | struct netlink_callback *cb) | |
35455e23 | 7905 | { |
3015f822 | 7906 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
35455e23 EBE |
7907 | struct devlink_health_reporter *reporter; |
7908 | int err; | |
7909 | ||
e44ef4e4 | 7910 | reporter = devlink_health_reporter_get_from_cb(cb); |
35455e23 EBE |
7911 | if (!reporter) |
7912 | return -EINVAL; | |
7913 | ||
e994a75f JP |
7914 | if (!reporter->ops->dump) |
7915 | return -EOPNOTSUPP; | |
7916 | ||
35455e23 | 7917 | mutex_lock(&reporter->dump_lock); |
3015f822 | 7918 | if (!state->idx) { |
e7a98105 | 7919 | err = devlink_health_do_dump(reporter, NULL, cb->extack); |
e44ef4e4 AL |
7920 | if (err) |
7921 | goto unlock; | |
3015f822 | 7922 | state->dump_ts = reporter->dump_ts; |
e44ef4e4 | 7923 | } |
3015f822 | 7924 | if (!reporter->dump_fmsg || state->dump_ts != reporter->dump_ts) { |
e44ef4e4 AL |
7925 | NL_SET_ERR_MSG_MOD(cb->extack, "Dump trampled, please retry"); |
7926 | err = -EAGAIN; | |
7927 | goto unlock; | |
7928 | } | |
35455e23 | 7929 | |
e44ef4e4 AL |
7930 | err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb, |
7931 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET); | |
7932 | unlock: | |
35455e23 EBE |
7933 | mutex_unlock(&reporter->dump_lock); |
7934 | return err; | |
7935 | } | |
7936 | ||
7937 | static int | |
7938 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, | |
7939 | struct genl_info *info) | |
7940 | { | |
7941 | struct devlink *devlink = info->user_ptr[0]; | |
7942 | struct devlink_health_reporter *reporter; | |
7943 | ||
7944 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7945 | if (!reporter) | |
7946 | return -EINVAL; | |
7947 | ||
e994a75f | 7948 | if (!reporter->ops->dump) |
35455e23 EBE |
7949 | return -EOPNOTSUPP; |
7950 | ||
7951 | mutex_lock(&reporter->dump_lock); | |
7952 | devlink_health_dump_clear(reporter); | |
7953 | mutex_unlock(&reporter->dump_lock); | |
7954 | return 0; | |
7955 | } | |
7956 | ||
e2ce94dc JP |
7957 | static int devlink_nl_cmd_health_reporter_test_doit(struct sk_buff *skb, |
7958 | struct genl_info *info) | |
7959 | { | |
7960 | struct devlink *devlink = info->user_ptr[0]; | |
7961 | struct devlink_health_reporter *reporter; | |
e2ce94dc JP |
7962 | |
7963 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7964 | if (!reporter) | |
7965 | return -EINVAL; | |
7966 | ||
e994a75f | 7967 | if (!reporter->ops->test) |
e2ce94dc | 7968 | return -EOPNOTSUPP; |
e2ce94dc | 7969 | |
e994a75f | 7970 | return reporter->ops->test(reporter, info->extack); |
e2ce94dc JP |
7971 | } |
7972 | ||
0f420b6c | 7973 | struct devlink_stats { |
958751e0 ED |
7974 | u64_stats_t rx_bytes; |
7975 | u64_stats_t rx_packets; | |
0f420b6c IS |
7976 | struct u64_stats_sync syncp; |
7977 | }; | |
7978 | ||
1e8c6619 IS |
7979 | /** |
7980 | * struct devlink_trap_policer_item - Packet trap policer attributes. | |
7981 | * @policer: Immutable packet trap policer attributes. | |
7982 | * @rate: Rate in packets / sec. | |
7983 | * @burst: Burst size in packets. | |
7984 | * @list: trap_policer_list member. | |
7985 | * | |
7986 | * Describes packet trap policer attributes. Created by devlink during trap | |
7987 | * policer registration. | |
7988 | */ | |
7989 | struct devlink_trap_policer_item { | |
7990 | const struct devlink_trap_policer *policer; | |
7991 | u64 rate; | |
7992 | u64 burst; | |
7993 | struct list_head list; | |
7994 | }; | |
7995 | ||
0f420b6c IS |
7996 | /** |
7997 | * struct devlink_trap_group_item - Packet trap group attributes. | |
7998 | * @group: Immutable packet trap group attributes. | |
f9f54392 | 7999 | * @policer_item: Associated policer item. Can be NULL. |
0f420b6c IS |
8000 | * @list: trap_group_list member. |
8001 | * @stats: Trap group statistics. | |
8002 | * | |
8003 | * Describes packet trap group attributes. Created by devlink during trap | |
a09b37fc | 8004 | * group registration. |
0f420b6c IS |
8005 | */ |
8006 | struct devlink_trap_group_item { | |
8007 | const struct devlink_trap_group *group; | |
f9f54392 | 8008 | struct devlink_trap_policer_item *policer_item; |
0f420b6c IS |
8009 | struct list_head list; |
8010 | struct devlink_stats __percpu *stats; | |
8011 | }; | |
8012 | ||
8013 | /** | |
8014 | * struct devlink_trap_item - Packet trap attributes. | |
8015 | * @trap: Immutable packet trap attributes. | |
8016 | * @group_item: Associated group item. | |
8017 | * @list: trap_list member. | |
8018 | * @action: Trap action. | |
8019 | * @stats: Trap statistics. | |
8020 | * @priv: Driver private information. | |
8021 | * | |
8022 | * Describes both mutable and immutable packet trap attributes. Created by | |
8023 | * devlink during trap registration and used for all trap related operations. | |
8024 | */ | |
8025 | struct devlink_trap_item { | |
8026 | const struct devlink_trap *trap; | |
8027 | struct devlink_trap_group_item *group_item; | |
8028 | struct list_head list; | |
8029 | enum devlink_trap_action action; | |
8030 | struct devlink_stats __percpu *stats; | |
8031 | void *priv; | |
8032 | }; | |
8033 | ||
1e8c6619 IS |
8034 | static struct devlink_trap_policer_item * |
8035 | devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id) | |
8036 | { | |
8037 | struct devlink_trap_policer_item *policer_item; | |
8038 | ||
8039 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { | |
8040 | if (policer_item->policer->id == id) | |
8041 | return policer_item; | |
8042 | } | |
8043 | ||
8044 | return NULL; | |
8045 | } | |
8046 | ||
0f420b6c IS |
8047 | static struct devlink_trap_item * |
8048 | devlink_trap_item_lookup(struct devlink *devlink, const char *name) | |
8049 | { | |
8050 | struct devlink_trap_item *trap_item; | |
8051 | ||
8052 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8053 | if (!strcmp(trap_item->trap->name, name)) | |
8054 | return trap_item; | |
8055 | } | |
8056 | ||
8057 | return NULL; | |
8058 | } | |
8059 | ||
8060 | static struct devlink_trap_item * | |
8061 | devlink_trap_item_get_from_info(struct devlink *devlink, | |
8062 | struct genl_info *info) | |
8063 | { | |
8064 | struct nlattr *attr; | |
8065 | ||
8066 | if (!info->attrs[DEVLINK_ATTR_TRAP_NAME]) | |
8067 | return NULL; | |
8068 | attr = info->attrs[DEVLINK_ATTR_TRAP_NAME]; | |
8069 | ||
8070 | return devlink_trap_item_lookup(devlink, nla_data(attr)); | |
8071 | } | |
8072 | ||
8073 | static int | |
8074 | devlink_trap_action_get_from_info(struct genl_info *info, | |
8075 | enum devlink_trap_action *p_trap_action) | |
8076 | { | |
8077 | u8 val; | |
8078 | ||
8079 | val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]); | |
8080 | switch (val) { | |
df561f66 GS |
8081 | case DEVLINK_TRAP_ACTION_DROP: |
8082 | case DEVLINK_TRAP_ACTION_TRAP: | |
9eefeabe | 8083 | case DEVLINK_TRAP_ACTION_MIRROR: |
0f420b6c IS |
8084 | *p_trap_action = val; |
8085 | break; | |
8086 | default: | |
8087 | return -EINVAL; | |
8088 | } | |
8089 | ||
8090 | return 0; | |
8091 | } | |
8092 | ||
8093 | static int devlink_trap_metadata_put(struct sk_buff *msg, | |
8094 | const struct devlink_trap *trap) | |
8095 | { | |
8096 | struct nlattr *attr; | |
8097 | ||
8098 | attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA); | |
8099 | if (!attr) | |
8100 | return -EMSGSIZE; | |
8101 | ||
8102 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) && | |
8103 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT)) | |
8104 | goto nla_put_failure; | |
85b0589e JP |
8105 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) && |
8106 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE)) | |
8107 | goto nla_put_failure; | |
0f420b6c IS |
8108 | |
8109 | nla_nest_end(msg, attr); | |
8110 | ||
8111 | return 0; | |
8112 | ||
8113 | nla_put_failure: | |
8114 | nla_nest_cancel(msg, attr); | |
8115 | return -EMSGSIZE; | |
8116 | } | |
8117 | ||
8118 | static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats, | |
8119 | struct devlink_stats *stats) | |
8120 | { | |
8121 | int i; | |
8122 | ||
8123 | memset(stats, 0, sizeof(*stats)); | |
8124 | for_each_possible_cpu(i) { | |
8125 | struct devlink_stats *cpu_stats; | |
8126 | u64 rx_packets, rx_bytes; | |
8127 | unsigned int start; | |
8128 | ||
8129 | cpu_stats = per_cpu_ptr(trap_stats, i); | |
8130 | do { | |
d120d1a6 | 8131 | start = u64_stats_fetch_begin(&cpu_stats->syncp); |
958751e0 ED |
8132 | rx_packets = u64_stats_read(&cpu_stats->rx_packets); |
8133 | rx_bytes = u64_stats_read(&cpu_stats->rx_bytes); | |
d120d1a6 | 8134 | } while (u64_stats_fetch_retry(&cpu_stats->syncp, start)); |
0f420b6c | 8135 | |
958751e0 ED |
8136 | u64_stats_add(&stats->rx_packets, rx_packets); |
8137 | u64_stats_add(&stats->rx_bytes, rx_bytes); | |
0f420b6c IS |
8138 | } |
8139 | } | |
8140 | ||
ddee9dbc OM |
8141 | static int |
8142 | devlink_trap_group_stats_put(struct sk_buff *msg, | |
8143 | struct devlink_stats __percpu *trap_stats) | |
0f420b6c IS |
8144 | { |
8145 | struct devlink_stats stats; | |
8146 | struct nlattr *attr; | |
8147 | ||
8148 | devlink_trap_stats_read(trap_stats, &stats); | |
8149 | ||
8150 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8151 | if (!attr) | |
8152 | return -EMSGSIZE; | |
8153 | ||
8154 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8155 | u64_stats_read(&stats.rx_packets), |
8156 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8157 | goto nla_put_failure; |
8158 | ||
8159 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8160 | u64_stats_read(&stats.rx_bytes), |
8161 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8162 | goto nla_put_failure; |
8163 | ||
8164 | nla_nest_end(msg, attr); | |
8165 | ||
8166 | return 0; | |
8167 | ||
8168 | nla_put_failure: | |
8169 | nla_nest_cancel(msg, attr); | |
8170 | return -EMSGSIZE; | |
8171 | } | |
8172 | ||
ddee9dbc OM |
8173 | static int devlink_trap_stats_put(struct sk_buff *msg, struct devlink *devlink, |
8174 | const struct devlink_trap_item *trap_item) | |
8175 | { | |
8176 | struct devlink_stats stats; | |
8177 | struct nlattr *attr; | |
8178 | u64 drops = 0; | |
8179 | int err; | |
8180 | ||
8181 | if (devlink->ops->trap_drop_counter_get) { | |
8182 | err = devlink->ops->trap_drop_counter_get(devlink, | |
8183 | trap_item->trap, | |
8184 | &drops); | |
8185 | if (err) | |
8186 | return err; | |
8187 | } | |
8188 | ||
8189 | devlink_trap_stats_read(trap_item->stats, &stats); | |
8190 | ||
8191 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8192 | if (!attr) | |
8193 | return -EMSGSIZE; | |
8194 | ||
8195 | if (devlink->ops->trap_drop_counter_get && | |
8196 | nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8197 | DEVLINK_ATTR_PAD)) | |
8198 | goto nla_put_failure; | |
8199 | ||
8200 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8201 | u64_stats_read(&stats.rx_packets), |
8202 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8203 | goto nla_put_failure; |
8204 | ||
8205 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8206 | u64_stats_read(&stats.rx_bytes), |
8207 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8208 | goto nla_put_failure; |
8209 | ||
8210 | nla_nest_end(msg, attr); | |
8211 | ||
8212 | return 0; | |
8213 | ||
8214 | nla_put_failure: | |
8215 | nla_nest_cancel(msg, attr); | |
8216 | return -EMSGSIZE; | |
8217 | } | |
8218 | ||
0f420b6c IS |
8219 | static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink, |
8220 | const struct devlink_trap_item *trap_item, | |
8221 | enum devlink_command cmd, u32 portid, u32 seq, | |
8222 | int flags) | |
8223 | { | |
8224 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
8225 | void *hdr; | |
8226 | int err; | |
8227 | ||
8228 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8229 | if (!hdr) | |
8230 | return -EMSGSIZE; | |
8231 | ||
8232 | if (devlink_nl_put_handle(msg, devlink)) | |
8233 | goto nla_put_failure; | |
8234 | ||
8235 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8236 | group_item->group->name)) | |
8237 | goto nla_put_failure; | |
8238 | ||
8239 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name)) | |
8240 | goto nla_put_failure; | |
8241 | ||
8242 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type)) | |
8243 | goto nla_put_failure; | |
8244 | ||
8245 | if (trap_item->trap->generic && | |
8246 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8247 | goto nla_put_failure; | |
8248 | ||
8249 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action)) | |
8250 | goto nla_put_failure; | |
8251 | ||
8252 | err = devlink_trap_metadata_put(msg, trap_item->trap); | |
8253 | if (err) | |
8254 | goto nla_put_failure; | |
8255 | ||
ddee9dbc | 8256 | err = devlink_trap_stats_put(msg, devlink, trap_item); |
0f420b6c IS |
8257 | if (err) |
8258 | goto nla_put_failure; | |
8259 | ||
8260 | genlmsg_end(msg, hdr); | |
8261 | ||
8262 | return 0; | |
8263 | ||
8264 | nla_put_failure: | |
8265 | genlmsg_cancel(msg, hdr); | |
8266 | return -EMSGSIZE; | |
8267 | } | |
8268 | ||
8269 | static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb, | |
8270 | struct genl_info *info) | |
8271 | { | |
8272 | struct netlink_ext_ack *extack = info->extack; | |
8273 | struct devlink *devlink = info->user_ptr[0]; | |
8274 | struct devlink_trap_item *trap_item; | |
8275 | struct sk_buff *msg; | |
8276 | int err; | |
8277 | ||
8278 | if (list_empty(&devlink->trap_list)) | |
8279 | return -EOPNOTSUPP; | |
8280 | ||
8281 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8282 | if (!trap_item) { | |
8283 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8284 | return -ENOENT; | |
8285 | } | |
8286 | ||
8287 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8288 | if (!msg) | |
8289 | return -ENOMEM; | |
8290 | ||
8291 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8292 | DEVLINK_CMD_TRAP_NEW, info->snd_portid, | |
8293 | info->snd_seq, 0); | |
8294 | if (err) | |
8295 | goto err_trap_fill; | |
8296 | ||
8297 | return genlmsg_reply(msg, info); | |
8298 | ||
8299 | err_trap_fill: | |
8300 | nlmsg_free(msg); | |
8301 | return err; | |
8302 | } | |
8303 | ||
5ce76d78 JK |
8304 | static int |
8305 | devlink_nl_cmd_trap_get_dump_one(struct sk_buff *msg, struct devlink *devlink, | |
8306 | struct netlink_callback *cb) | |
0f420b6c | 8307 | { |
3015f822 | 8308 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 JK |
8309 | struct devlink_trap_item *trap_item; |
8310 | int idx = 0; | |
8311 | int err = 0; | |
a8f94707 | 8312 | |
5ce76d78 JK |
8313 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
8314 | if (idx < state->idx) { | |
0f420b6c | 8315 | idx++; |
5ce76d78 | 8316 | continue; |
0f420b6c | 8317 | } |
5ce76d78 JK |
8318 | err = devlink_nl_trap_fill(msg, devlink, trap_item, |
8319 | DEVLINK_CMD_TRAP_NEW, | |
8320 | NETLINK_CB(cb->skb).portid, | |
8321 | cb->nlh->nlmsg_seq, | |
8322 | NLM_F_MULTI); | |
8323 | if (err) { | |
8324 | state->idx = idx; | |
8325 | break; | |
8326 | } | |
8327 | idx++; | |
0f420b6c | 8328 | } |
5ce76d78 JK |
8329 | |
8330 | return err; | |
0f420b6c IS |
8331 | } |
8332 | ||
5ce76d78 JK |
8333 | const struct devlink_gen_cmd devl_gen_trap = { |
8334 | .dump_one = devlink_nl_cmd_trap_get_dump_one, | |
8335 | }; | |
8336 | ||
0f420b6c IS |
8337 | static int __devlink_trap_action_set(struct devlink *devlink, |
8338 | struct devlink_trap_item *trap_item, | |
8339 | enum devlink_trap_action trap_action, | |
8340 | struct netlink_ext_ack *extack) | |
8341 | { | |
8342 | int err; | |
8343 | ||
8344 | if (trap_item->action != trap_action && | |
8345 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) { | |
8346 | NL_SET_ERR_MSG_MOD(extack, "Cannot change action of non-drop traps. Skipping"); | |
8347 | return 0; | |
8348 | } | |
8349 | ||
8350 | err = devlink->ops->trap_action_set(devlink, trap_item->trap, | |
c88e11e0 | 8351 | trap_action, extack); |
0f420b6c IS |
8352 | if (err) |
8353 | return err; | |
8354 | ||
8355 | trap_item->action = trap_action; | |
8356 | ||
8357 | return 0; | |
8358 | } | |
8359 | ||
8360 | static int devlink_trap_action_set(struct devlink *devlink, | |
8361 | struct devlink_trap_item *trap_item, | |
8362 | struct genl_info *info) | |
8363 | { | |
8364 | enum devlink_trap_action trap_action; | |
8365 | int err; | |
8366 | ||
8367 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8368 | return 0; | |
8369 | ||
8370 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8371 | if (err) { | |
8372 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8373 | return -EINVAL; | |
8374 | } | |
8375 | ||
8376 | return __devlink_trap_action_set(devlink, trap_item, trap_action, | |
8377 | info->extack); | |
8378 | } | |
8379 | ||
8380 | static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, | |
8381 | struct genl_info *info) | |
8382 | { | |
8383 | struct netlink_ext_ack *extack = info->extack; | |
8384 | struct devlink *devlink = info->user_ptr[0]; | |
8385 | struct devlink_trap_item *trap_item; | |
0f420b6c IS |
8386 | |
8387 | if (list_empty(&devlink->trap_list)) | |
8388 | return -EOPNOTSUPP; | |
8389 | ||
8390 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8391 | if (!trap_item) { | |
8392 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8393 | return -ENOENT; | |
8394 | } | |
8395 | ||
8daa76a5 | 8396 | return devlink_trap_action_set(devlink, trap_item, info); |
0f420b6c IS |
8397 | } |
8398 | ||
8399 | static struct devlink_trap_group_item * | |
8400 | devlink_trap_group_item_lookup(struct devlink *devlink, const char *name) | |
8401 | { | |
8402 | struct devlink_trap_group_item *group_item; | |
8403 | ||
8404 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8405 | if (!strcmp(group_item->group->name, name)) | |
8406 | return group_item; | |
8407 | } | |
8408 | ||
8409 | return NULL; | |
8410 | } | |
8411 | ||
107f1678 IS |
8412 | static struct devlink_trap_group_item * |
8413 | devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id) | |
8414 | { | |
8415 | struct devlink_trap_group_item *group_item; | |
8416 | ||
8417 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8418 | if (group_item->group->id == id) | |
8419 | return group_item; | |
8420 | } | |
8421 | ||
8422 | return NULL; | |
8423 | } | |
8424 | ||
0f420b6c IS |
8425 | static struct devlink_trap_group_item * |
8426 | devlink_trap_group_item_get_from_info(struct devlink *devlink, | |
8427 | struct genl_info *info) | |
8428 | { | |
8429 | char *name; | |
8430 | ||
8431 | if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]) | |
8432 | return NULL; | |
8433 | name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]); | |
8434 | ||
8435 | return devlink_trap_group_item_lookup(devlink, name); | |
8436 | } | |
8437 | ||
8438 | static int | |
8439 | devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink, | |
8440 | const struct devlink_trap_group_item *group_item, | |
8441 | enum devlink_command cmd, u32 portid, u32 seq, | |
8442 | int flags) | |
8443 | { | |
8444 | void *hdr; | |
8445 | int err; | |
8446 | ||
8447 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8448 | if (!hdr) | |
8449 | return -EMSGSIZE; | |
8450 | ||
8451 | if (devlink_nl_put_handle(msg, devlink)) | |
8452 | goto nla_put_failure; | |
8453 | ||
8454 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8455 | group_item->group->name)) | |
8456 | goto nla_put_failure; | |
8457 | ||
8458 | if (group_item->group->generic && | |
8459 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8460 | goto nla_put_failure; | |
8461 | ||
f9f54392 IS |
8462 | if (group_item->policer_item && |
8463 | nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8464 | group_item->policer_item->policer->id)) | |
8465 | goto nla_put_failure; | |
8466 | ||
ddee9dbc | 8467 | err = devlink_trap_group_stats_put(msg, group_item->stats); |
0f420b6c IS |
8468 | if (err) |
8469 | goto nla_put_failure; | |
8470 | ||
8471 | genlmsg_end(msg, hdr); | |
8472 | ||
8473 | return 0; | |
8474 | ||
8475 | nla_put_failure: | |
8476 | genlmsg_cancel(msg, hdr); | |
8477 | return -EMSGSIZE; | |
8478 | } | |
8479 | ||
8480 | static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb, | |
8481 | struct genl_info *info) | |
8482 | { | |
8483 | struct netlink_ext_ack *extack = info->extack; | |
8484 | struct devlink *devlink = info->user_ptr[0]; | |
8485 | struct devlink_trap_group_item *group_item; | |
8486 | struct sk_buff *msg; | |
8487 | int err; | |
8488 | ||
8489 | if (list_empty(&devlink->trap_group_list)) | |
8490 | return -EOPNOTSUPP; | |
8491 | ||
8492 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8493 | if (!group_item) { | |
8494 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8495 | return -ENOENT; | |
8496 | } | |
8497 | ||
8498 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8499 | if (!msg) | |
8500 | return -ENOMEM; | |
8501 | ||
8502 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, | |
8503 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
8504 | info->snd_portid, info->snd_seq, 0); | |
8505 | if (err) | |
8506 | goto err_trap_group_fill; | |
8507 | ||
8508 | return genlmsg_reply(msg, info); | |
8509 | ||
8510 | err_trap_group_fill: | |
8511 | nlmsg_free(msg); | |
8512 | return err; | |
8513 | } | |
8514 | ||
5ce76d78 JK |
8515 | static int |
8516 | devlink_nl_cmd_trap_group_get_dump_one(struct sk_buff *msg, | |
8517 | struct devlink *devlink, | |
8518 | struct netlink_callback *cb) | |
0f420b6c | 8519 | { |
3015f822 | 8520 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 JK |
8521 | struct devlink_trap_group_item *group_item; |
8522 | int idx = 0; | |
8523 | int err = 0; | |
0f420b6c | 8524 | |
a8f94707 | 8525 | |
5ce76d78 JK |
8526 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { |
8527 | if (idx < state->idx) { | |
0f420b6c | 8528 | idx++; |
5ce76d78 | 8529 | continue; |
0f420b6c | 8530 | } |
5ce76d78 JK |
8531 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, |
8532 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
8533 | NETLINK_CB(cb->skb).portid, | |
8534 | cb->nlh->nlmsg_seq, | |
8535 | NLM_F_MULTI); | |
8536 | if (err) { | |
8537 | state->idx = idx; | |
8538 | break; | |
8539 | } | |
8540 | idx++; | |
0f420b6c | 8541 | } |
5ce76d78 JK |
8542 | |
8543 | return err; | |
0f420b6c IS |
8544 | } |
8545 | ||
5ce76d78 JK |
8546 | const struct devlink_gen_cmd devl_gen_trap_group = { |
8547 | .dump_one = devlink_nl_cmd_trap_group_get_dump_one, | |
8548 | }; | |
8549 | ||
0f420b6c IS |
8550 | static int |
8551 | __devlink_trap_group_action_set(struct devlink *devlink, | |
8552 | struct devlink_trap_group_item *group_item, | |
8553 | enum devlink_trap_action trap_action, | |
8554 | struct netlink_ext_ack *extack) | |
8555 | { | |
8556 | const char *group_name = group_item->group->name; | |
8557 | struct devlink_trap_item *trap_item; | |
8558 | int err; | |
8559 | ||
c50bf2be IC |
8560 | if (devlink->ops->trap_group_action_set) { |
8561 | err = devlink->ops->trap_group_action_set(devlink, group_item->group, | |
8562 | trap_action, extack); | |
8563 | if (err) | |
8564 | return err; | |
8565 | ||
8566 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8567 | if (strcmp(trap_item->group_item->group->name, group_name)) | |
8568 | continue; | |
8569 | if (trap_item->action != trap_action && | |
8570 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) | |
8571 | continue; | |
8572 | trap_item->action = trap_action; | |
8573 | } | |
8574 | ||
8575 | return 0; | |
8576 | } | |
8577 | ||
0f420b6c | 8578 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
107f1678 | 8579 | if (strcmp(trap_item->group_item->group->name, group_name)) |
0f420b6c IS |
8580 | continue; |
8581 | err = __devlink_trap_action_set(devlink, trap_item, | |
8582 | trap_action, extack); | |
8583 | if (err) | |
8584 | return err; | |
8585 | } | |
8586 | ||
8587 | return 0; | |
8588 | } | |
8589 | ||
8590 | static int | |
8591 | devlink_trap_group_action_set(struct devlink *devlink, | |
8592 | struct devlink_trap_group_item *group_item, | |
c064875a | 8593 | struct genl_info *info, bool *p_modified) |
0f420b6c IS |
8594 | { |
8595 | enum devlink_trap_action trap_action; | |
8596 | int err; | |
8597 | ||
8598 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8599 | return 0; | |
8600 | ||
8601 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8602 | if (err) { | |
8603 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8604 | return -EINVAL; | |
8605 | } | |
8606 | ||
8607 | err = __devlink_trap_group_action_set(devlink, group_item, trap_action, | |
8608 | info->extack); | |
8609 | if (err) | |
8610 | return err; | |
8611 | ||
c064875a IS |
8612 | *p_modified = true; |
8613 | ||
8614 | return 0; | |
8615 | } | |
8616 | ||
8617 | static int devlink_trap_group_set(struct devlink *devlink, | |
8618 | struct devlink_trap_group_item *group_item, | |
8619 | struct genl_info *info) | |
8620 | { | |
8621 | struct devlink_trap_policer_item *policer_item; | |
8622 | struct netlink_ext_ack *extack = info->extack; | |
8623 | const struct devlink_trap_policer *policer; | |
8624 | struct nlattr **attrs = info->attrs; | |
501543b4 | 8625 | u32 policer_id; |
c064875a IS |
8626 | int err; |
8627 | ||
8628 | if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8629 | return 0; | |
8630 | ||
8631 | if (!devlink->ops->trap_group_set) | |
8632 | return -EOPNOTSUPP; | |
8633 | ||
501543b4 DC |
8634 | policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); |
8635 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
8636 | if (policer_id && !policer_item) { | |
8637 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8638 | return -ENOENT; | |
c064875a IS |
8639 | } |
8640 | policer = policer_item ? policer_item->policer : NULL; | |
8641 | ||
c88e11e0 IS |
8642 | err = devlink->ops->trap_group_set(devlink, group_item->group, policer, |
8643 | extack); | |
c064875a IS |
8644 | if (err) |
8645 | return err; | |
8646 | ||
8647 | group_item->policer_item = policer_item; | |
8648 | ||
0f420b6c IS |
8649 | return 0; |
8650 | } | |
8651 | ||
8652 | static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb, | |
8653 | struct genl_info *info) | |
8654 | { | |
8655 | struct netlink_ext_ack *extack = info->extack; | |
8656 | struct devlink *devlink = info->user_ptr[0]; | |
8657 | struct devlink_trap_group_item *group_item; | |
c064875a | 8658 | bool modified = false; |
0f420b6c IS |
8659 | int err; |
8660 | ||
8661 | if (list_empty(&devlink->trap_group_list)) | |
8662 | return -EOPNOTSUPP; | |
8663 | ||
8664 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8665 | if (!group_item) { | |
8666 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8667 | return -ENOENT; | |
8668 | } | |
8669 | ||
c064875a IS |
8670 | err = devlink_trap_group_action_set(devlink, group_item, info, |
8671 | &modified); | |
0f420b6c IS |
8672 | if (err) |
8673 | return err; | |
8674 | ||
c064875a IS |
8675 | err = devlink_trap_group_set(devlink, group_item, info); |
8676 | if (err) | |
8677 | goto err_trap_group_set; | |
8678 | ||
0f420b6c | 8679 | return 0; |
c064875a IS |
8680 | |
8681 | err_trap_group_set: | |
8682 | if (modified) | |
8683 | NL_SET_ERR_MSG_MOD(extack, "Trap group set failed, but some changes were committed already"); | |
8684 | return err; | |
0f420b6c IS |
8685 | } |
8686 | ||
1e8c6619 IS |
8687 | static struct devlink_trap_policer_item * |
8688 | devlink_trap_policer_item_get_from_info(struct devlink *devlink, | |
8689 | struct genl_info *info) | |
8690 | { | |
8691 | u32 id; | |
8692 | ||
8693 | if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8694 | return NULL; | |
8695 | id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8696 | ||
8697 | return devlink_trap_policer_item_lookup(devlink, id); | |
8698 | } | |
8699 | ||
8700 | static int | |
8701 | devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink, | |
8702 | const struct devlink_trap_policer *policer) | |
8703 | { | |
8704 | struct nlattr *attr; | |
8705 | u64 drops; | |
8706 | int err; | |
8707 | ||
8708 | if (!devlink->ops->trap_policer_counter_get) | |
8709 | return 0; | |
8710 | ||
8711 | err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops); | |
8712 | if (err) | |
8713 | return err; | |
8714 | ||
8715 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8716 | if (!attr) | |
8717 | return -EMSGSIZE; | |
8718 | ||
8719 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8720 | DEVLINK_ATTR_PAD)) | |
8721 | goto nla_put_failure; | |
8722 | ||
8723 | nla_nest_end(msg, attr); | |
8724 | ||
8725 | return 0; | |
8726 | ||
8727 | nla_put_failure: | |
8728 | nla_nest_cancel(msg, attr); | |
8729 | return -EMSGSIZE; | |
8730 | } | |
8731 | ||
8732 | static int | |
8733 | devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink, | |
8734 | const struct devlink_trap_policer_item *policer_item, | |
8735 | enum devlink_command cmd, u32 portid, u32 seq, | |
8736 | int flags) | |
8737 | { | |
8738 | void *hdr; | |
8739 | int err; | |
8740 | ||
8741 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8742 | if (!hdr) | |
8743 | return -EMSGSIZE; | |
8744 | ||
8745 | if (devlink_nl_put_handle(msg, devlink)) | |
8746 | goto nla_put_failure; | |
8747 | ||
8748 | if (nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8749 | policer_item->policer->id)) | |
8750 | goto nla_put_failure; | |
8751 | ||
8752 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE, | |
8753 | policer_item->rate, DEVLINK_ATTR_PAD)) | |
8754 | goto nla_put_failure; | |
8755 | ||
8756 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST, | |
8757 | policer_item->burst, DEVLINK_ATTR_PAD)) | |
8758 | goto nla_put_failure; | |
8759 | ||
8760 | err = devlink_trap_policer_stats_put(msg, devlink, | |
8761 | policer_item->policer); | |
8762 | if (err) | |
8763 | goto nla_put_failure; | |
8764 | ||
8765 | genlmsg_end(msg, hdr); | |
8766 | ||
8767 | return 0; | |
8768 | ||
8769 | nla_put_failure: | |
8770 | genlmsg_cancel(msg, hdr); | |
8771 | return -EMSGSIZE; | |
8772 | } | |
8773 | ||
8774 | static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb, | |
8775 | struct genl_info *info) | |
8776 | { | |
8777 | struct devlink_trap_policer_item *policer_item; | |
8778 | struct netlink_ext_ack *extack = info->extack; | |
8779 | struct devlink *devlink = info->user_ptr[0]; | |
8780 | struct sk_buff *msg; | |
8781 | int err; | |
8782 | ||
8783 | if (list_empty(&devlink->trap_policer_list)) | |
8784 | return -EOPNOTSUPP; | |
8785 | ||
8786 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
8787 | if (!policer_item) { | |
8788 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8789 | return -ENOENT; | |
8790 | } | |
8791 | ||
8792 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8793 | if (!msg) | |
8794 | return -ENOMEM; | |
8795 | ||
8796 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, | |
8797 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
8798 | info->snd_portid, info->snd_seq, 0); | |
8799 | if (err) | |
8800 | goto err_trap_policer_fill; | |
8801 | ||
8802 | return genlmsg_reply(msg, info); | |
8803 | ||
8804 | err_trap_policer_fill: | |
8805 | nlmsg_free(msg); | |
8806 | return err; | |
8807 | } | |
8808 | ||
5ce76d78 JK |
8809 | static int |
8810 | devlink_nl_cmd_trap_policer_get_dump_one(struct sk_buff *msg, | |
8811 | struct devlink *devlink, | |
8812 | struct netlink_callback *cb) | |
1e8c6619 | 8813 | { |
3015f822 | 8814 | struct devlink_nl_dump_state *state = devlink_dump_state(cb); |
5ce76d78 JK |
8815 | struct devlink_trap_policer_item *policer_item; |
8816 | int idx = 0; | |
8817 | int err = 0; | |
a8f94707 | 8818 | |
5ce76d78 JK |
8819 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { |
8820 | if (idx < state->idx) { | |
1e8c6619 | 8821 | idx++; |
5ce76d78 | 8822 | continue; |
1e8c6619 | 8823 | } |
5ce76d78 JK |
8824 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, |
8825 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
8826 | NETLINK_CB(cb->skb).portid, | |
8827 | cb->nlh->nlmsg_seq, | |
8828 | NLM_F_MULTI); | |
8829 | if (err) { | |
8830 | state->idx = idx; | |
8831 | break; | |
8832 | } | |
8833 | idx++; | |
1e8c6619 | 8834 | } |
5ce76d78 JK |
8835 | |
8836 | return err; | |
1e8c6619 IS |
8837 | } |
8838 | ||
5ce76d78 JK |
8839 | const struct devlink_gen_cmd devl_gen_trap_policer = { |
8840 | .dump_one = devlink_nl_cmd_trap_policer_get_dump_one, | |
8841 | }; | |
8842 | ||
1e8c6619 IS |
8843 | static int |
8844 | devlink_trap_policer_set(struct devlink *devlink, | |
8845 | struct devlink_trap_policer_item *policer_item, | |
8846 | struct genl_info *info) | |
8847 | { | |
8848 | struct netlink_ext_ack *extack = info->extack; | |
8849 | struct nlattr **attrs = info->attrs; | |
8850 | u64 rate, burst; | |
8851 | int err; | |
8852 | ||
8853 | rate = policer_item->rate; | |
8854 | burst = policer_item->burst; | |
8855 | ||
8856 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]) | |
8857 | rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]); | |
8858 | ||
8859 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]) | |
8860 | burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]); | |
8861 | ||
8862 | if (rate < policer_item->policer->min_rate) { | |
8863 | NL_SET_ERR_MSG_MOD(extack, "Policer rate lower than limit"); | |
8864 | return -EINVAL; | |
8865 | } | |
8866 | ||
8867 | if (rate > policer_item->policer->max_rate) { | |
8868 | NL_SET_ERR_MSG_MOD(extack, "Policer rate higher than limit"); | |
8869 | return -EINVAL; | |
8870 | } | |
8871 | ||
8872 | if (burst < policer_item->policer->min_burst) { | |
8873 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size lower than limit"); | |
8874 | return -EINVAL; | |
8875 | } | |
8876 | ||
8877 | if (burst > policer_item->policer->max_burst) { | |
8878 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size higher than limit"); | |
8879 | return -EINVAL; | |
8880 | } | |
8881 | ||
8882 | err = devlink->ops->trap_policer_set(devlink, policer_item->policer, | |
8883 | rate, burst, info->extack); | |
8884 | if (err) | |
8885 | return err; | |
8886 | ||
8887 | policer_item->rate = rate; | |
8888 | policer_item->burst = burst; | |
8889 | ||
8890 | return 0; | |
8891 | } | |
8892 | ||
8893 | static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb, | |
8894 | struct genl_info *info) | |
8895 | { | |
8896 | struct devlink_trap_policer_item *policer_item; | |
8897 | struct netlink_ext_ack *extack = info->extack; | |
8898 | struct devlink *devlink = info->user_ptr[0]; | |
8899 | ||
8900 | if (list_empty(&devlink->trap_policer_list)) | |
8901 | return -EOPNOTSUPP; | |
8902 | ||
8903 | if (!devlink->ops->trap_policer_set) | |
8904 | return -EOPNOTSUPP; | |
8905 | ||
8906 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
8907 | if (!policer_item) { | |
8908 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8909 | return -ENOENT; | |
8910 | } | |
8911 | ||
8912 | return devlink_trap_policer_set(devlink, policer_item, info); | |
8913 | } | |
8914 | ||
623cd13b | 8915 | const struct genl_small_ops devlink_nl_ops[56] = { |
bfcd3a46 JP |
8916 | { |
8917 | .cmd = DEVLINK_CMD_GET, | |
ef6243ac | 8918 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 8919 | .doit = devlink_nl_cmd_get_doit, |
5ce76d78 | 8920 | .dumpit = devlink_nl_instance_iter_dump, |
bfcd3a46 JP |
8921 | /* can be retrieved by unprivileged users */ |
8922 | }, | |
8923 | { | |
8924 | .cmd = DEVLINK_CMD_PORT_GET, | |
ef6243ac | 8925 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 8926 | .doit = devlink_nl_cmd_port_get_doit, |
5ce76d78 | 8927 | .dumpit = devlink_nl_instance_iter_dump, |
bfcd3a46 JP |
8928 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
8929 | /* can be retrieved by unprivileged users */ | |
8930 | }, | |
8931 | { | |
8932 | .cmd = DEVLINK_CMD_PORT_SET, | |
ef6243ac | 8933 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 8934 | .doit = devlink_nl_cmd_port_set_doit, |
bfcd3a46 JP |
8935 | .flags = GENL_ADMIN_PERM, |
8936 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
8937 | }, | |
4677efc4 DL |
8938 | { |
8939 | .cmd = DEVLINK_CMD_RATE_GET, | |
8940 | .doit = devlink_nl_cmd_rate_get_doit, | |
07f3af66 | 8941 | .dumpit = devlink_nl_instance_iter_dump, |
4677efc4 DL |
8942 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, |
8943 | /* can be retrieved by unprivileged users */ | |
8944 | }, | |
1897db2e DL |
8945 | { |
8946 | .cmd = DEVLINK_CMD_RATE_SET, | |
8947 | .doit = devlink_nl_cmd_rate_set_doit, | |
8948 | .flags = GENL_ADMIN_PERM, | |
8949 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
8950 | }, | |
a8ecb93e DL |
8951 | { |
8952 | .cmd = DEVLINK_CMD_RATE_NEW, | |
8953 | .doit = devlink_nl_cmd_rate_new_doit, | |
8954 | .flags = GENL_ADMIN_PERM, | |
8955 | }, | |
8956 | { | |
8957 | .cmd = DEVLINK_CMD_RATE_DEL, | |
8958 | .doit = devlink_nl_cmd_rate_del_doit, | |
8959 | .flags = GENL_ADMIN_PERM, | |
8960 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE_NODE, | |
8961 | }, | |
bfcd3a46 JP |
8962 | { |
8963 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
ef6243ac | 8964 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 8965 | .doit = devlink_nl_cmd_port_split_doit, |
bfcd3a46 | 8966 | .flags = GENL_ADMIN_PERM, |
706217c1 | 8967 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 JP |
8968 | }, |
8969 | { | |
8970 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
ef6243ac | 8971 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 8972 | .doit = devlink_nl_cmd_port_unsplit_doit, |
bfcd3a46 | 8973 | .flags = GENL_ADMIN_PERM, |
706217c1 | 8974 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 | 8975 | }, |
cd76dcd6 PP |
8976 | { |
8977 | .cmd = DEVLINK_CMD_PORT_NEW, | |
8978 | .doit = devlink_nl_cmd_port_new_doit, | |
8979 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 PP |
8980 | }, |
8981 | { | |
8982 | .cmd = DEVLINK_CMD_PORT_DEL, | |
8983 | .doit = devlink_nl_cmd_port_del_doit, | |
8984 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 | 8985 | }, |
c246f9b5 JP |
8986 | { |
8987 | .cmd = DEVLINK_CMD_LINECARD_GET, | |
8988 | .doit = devlink_nl_cmd_linecard_get_doit, | |
25573968 | 8989 | .dumpit = devlink_nl_instance_iter_dump, |
c246f9b5 JP |
8990 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, |
8991 | /* can be retrieved by unprivileged users */ | |
8992 | }, | |
fcdc8ce2 JP |
8993 | { |
8994 | .cmd = DEVLINK_CMD_LINECARD_SET, | |
8995 | .doit = devlink_nl_cmd_linecard_set_doit, | |
8996 | .flags = GENL_ADMIN_PERM, | |
8997 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
8998 | }, | |
bf797471 JP |
8999 | { |
9000 | .cmd = DEVLINK_CMD_SB_GET, | |
ef6243ac | 9001 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9002 | .doit = devlink_nl_cmd_sb_get_doit, |
5ce76d78 | 9003 | .dumpit = devlink_nl_instance_iter_dump, |
bf797471 JP |
9004 | /* can be retrieved by unprivileged users */ |
9005 | }, | |
9006 | { | |
9007 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
ef6243ac | 9008 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9009 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
5ce76d78 | 9010 | .dumpit = devlink_nl_instance_iter_dump, |
bf797471 JP |
9011 | /* can be retrieved by unprivileged users */ |
9012 | }, | |
9013 | { | |
9014 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
ef6243ac | 9015 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9016 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
bf797471 | 9017 | .flags = GENL_ADMIN_PERM, |
bf797471 JP |
9018 | }, |
9019 | { | |
9020 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
ef6243ac | 9021 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9022 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
5ce76d78 | 9023 | .dumpit = devlink_nl_instance_iter_dump, |
637989b5 | 9024 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9025 | /* can be retrieved by unprivileged users */ |
9026 | }, | |
9027 | { | |
9028 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
ef6243ac | 9029 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9030 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
bf797471 | 9031 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9032 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9033 | }, |
9034 | { | |
9035 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
ef6243ac | 9036 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9037 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
5ce76d78 | 9038 | .dumpit = devlink_nl_instance_iter_dump, |
637989b5 | 9039 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9040 | /* can be retrieved by unprivileged users */ |
9041 | }, | |
9042 | { | |
9043 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
ef6243ac | 9044 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9045 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
bf797471 | 9046 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9047 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 | 9048 | }, |
df38dafd JP |
9049 | { |
9050 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
ef6243ac | 9051 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9052 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
df38dafd | 9053 | .flags = GENL_ADMIN_PERM, |
df38dafd JP |
9054 | }, |
9055 | { | |
9056 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
ef6243ac | 9057 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9058 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
df38dafd | 9059 | .flags = GENL_ADMIN_PERM, |
df38dafd | 9060 | }, |
08f4b591 | 9061 | { |
adf200f3 | 9062 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
ef6243ac | 9063 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9064 | .doit = devlink_nl_cmd_eswitch_get_doit, |
08f4b591 | 9065 | .flags = GENL_ADMIN_PERM, |
08f4b591 OG |
9066 | }, |
9067 | { | |
adf200f3 | 9068 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
ef6243ac | 9069 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9070 | .doit = devlink_nl_cmd_eswitch_set_doit, |
08f4b591 | 9071 | .flags = GENL_ADMIN_PERM, |
08f4b591 | 9072 | }, |
1555d204 AS |
9073 | { |
9074 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
ef6243ac | 9075 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9076 | .doit = devlink_nl_cmd_dpipe_table_get, |
67ae686b | 9077 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9078 | }, |
9079 | { | |
9080 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
ef6243ac | 9081 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9082 | .doit = devlink_nl_cmd_dpipe_entries_get, |
67ae686b | 9083 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9084 | }, |
9085 | { | |
9086 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
ef6243ac | 9087 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9088 | .doit = devlink_nl_cmd_dpipe_headers_get, |
67ae686b | 9089 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9090 | }, |
9091 | { | |
9092 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
ef6243ac | 9093 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9094 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
1555d204 | 9095 | .flags = GENL_ADMIN_PERM, |
1555d204 | 9096 | }, |
d9f9b9a4 AS |
9097 | { |
9098 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
ef6243ac | 9099 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9100 | .doit = devlink_nl_cmd_resource_set, |
d9f9b9a4 | 9101 | .flags = GENL_ADMIN_PERM, |
d9f9b9a4 AS |
9102 | }, |
9103 | { | |
9104 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
ef6243ac | 9105 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9106 | .doit = devlink_nl_cmd_resource_dump, |
67ae686b | 9107 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 9108 | }, |
2d8dc5bb AS |
9109 | { |
9110 | .cmd = DEVLINK_CMD_RELOAD, | |
ef6243ac | 9111 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
2d8dc5bb | 9112 | .doit = devlink_nl_cmd_reload, |
2d8dc5bb | 9113 | .flags = GENL_ADMIN_PERM, |
2d8dc5bb | 9114 | }, |
45f05def MS |
9115 | { |
9116 | .cmd = DEVLINK_CMD_PARAM_GET, | |
ef6243ac | 9117 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
45f05def | 9118 | .doit = devlink_nl_cmd_param_get_doit, |
5ce76d78 | 9119 | .dumpit = devlink_nl_instance_iter_dump, |
45f05def MS |
9120 | /* can be retrieved by unprivileged users */ |
9121 | }, | |
e3b7ca18 MS |
9122 | { |
9123 | .cmd = DEVLINK_CMD_PARAM_SET, | |
ef6243ac | 9124 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
e3b7ca18 | 9125 | .doit = devlink_nl_cmd_param_set_doit, |
e3b7ca18 | 9126 | .flags = GENL_ADMIN_PERM, |
e3b7ca18 | 9127 | }, |
f4601dee VV |
9128 | { |
9129 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
ef6243ac | 9130 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f4601dee VV |
9131 | .doit = devlink_nl_cmd_port_param_get_doit, |
9132 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
f4601dee VV |
9133 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9134 | /* can be retrieved by unprivileged users */ | |
9135 | }, | |
9c54873b VV |
9136 | { |
9137 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
ef6243ac | 9138 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9c54873b | 9139 | .doit = devlink_nl_cmd_port_param_set_doit, |
9c54873b VV |
9140 | .flags = GENL_ADMIN_PERM, |
9141 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9142 | }, | |
d8db7ea5 AV |
9143 | { |
9144 | .cmd = DEVLINK_CMD_REGION_GET, | |
ef6243ac | 9145 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d8db7ea5 | 9146 | .doit = devlink_nl_cmd_region_get_doit, |
5ce76d78 | 9147 | .dumpit = devlink_nl_instance_iter_dump, |
d8db7ea5 | 9148 | .flags = GENL_ADMIN_PERM, |
d8db7ea5 | 9149 | }, |
b9a17abf JK |
9150 | { |
9151 | .cmd = DEVLINK_CMD_REGION_NEW, | |
9152 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9153 | .doit = devlink_nl_cmd_region_new, | |
9154 | .flags = GENL_ADMIN_PERM, | |
b9a17abf | 9155 | }, |
866319bb AV |
9156 | { |
9157 | .cmd = DEVLINK_CMD_REGION_DEL, | |
ef6243ac | 9158 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
866319bb | 9159 | .doit = devlink_nl_cmd_region_del, |
866319bb | 9160 | .flags = GENL_ADMIN_PERM, |
866319bb | 9161 | }, |
4e54795a AV |
9162 | { |
9163 | .cmd = DEVLINK_CMD_REGION_READ, | |
ee85da53 JP |
9164 | .validate = GENL_DONT_VALIDATE_STRICT | |
9165 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
4e54795a | 9166 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
4e54795a | 9167 | .flags = GENL_ADMIN_PERM, |
4e54795a | 9168 | }, |
f9cf2288 JK |
9169 | { |
9170 | .cmd = DEVLINK_CMD_INFO_GET, | |
ef6243ac | 9171 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f9cf2288 | 9172 | .doit = devlink_nl_cmd_info_get_doit, |
5ce76d78 | 9173 | .dumpit = devlink_nl_instance_iter_dump, |
f9cf2288 JK |
9174 | /* can be retrieved by unprivileged users */ |
9175 | }, | |
7afe335a EBE |
9176 | { |
9177 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, | |
ef6243ac | 9178 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7afe335a | 9179 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
19be51a9 | 9180 | .dumpit = devlink_nl_instance_iter_dump, |
c90005b5 | 9181 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
7afe335a EBE |
9182 | /* can be retrieved by unprivileged users */ |
9183 | }, | |
a1e55ec0 EBE |
9184 | { |
9185 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, | |
ef6243ac | 9186 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
a1e55ec0 | 9187 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
a1e55ec0 | 9188 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9189 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
a1e55ec0 | 9190 | }, |
20a0943a EBE |
9191 | { |
9192 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, | |
ef6243ac | 9193 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
20a0943a | 9194 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
20a0943a | 9195 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9196 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
20a0943a | 9197 | }, |
fca42a27 EBE |
9198 | { |
9199 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, | |
ef6243ac | 9200 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fca42a27 | 9201 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
fca42a27 | 9202 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9203 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
fca42a27 | 9204 | }, |
35455e23 EBE |
9205 | { |
9206 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, | |
82a843de JP |
9207 | .validate = GENL_DONT_VALIDATE_STRICT | |
9208 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
e44ef4e4 | 9209 | .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit, |
35455e23 | 9210 | .flags = GENL_ADMIN_PERM, |
35455e23 EBE |
9211 | }, |
9212 | { | |
9213 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, | |
ef6243ac | 9214 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35455e23 | 9215 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
35455e23 | 9216 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9217 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
35455e23 | 9218 | }, |
e2ce94dc JP |
9219 | { |
9220 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST, | |
9221 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9222 | .doit = devlink_nl_cmd_health_reporter_test_doit, | |
9223 | .flags = GENL_ADMIN_PERM, | |
c90005b5 | 9224 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
e2ce94dc | 9225 | }, |
76726ccb JK |
9226 | { |
9227 | .cmd = DEVLINK_CMD_FLASH_UPDATE, | |
ef6243ac | 9228 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
76726ccb | 9229 | .doit = devlink_nl_cmd_flash_update, |
76726ccb | 9230 | .flags = GENL_ADMIN_PERM, |
76726ccb | 9231 | }, |
0f420b6c IS |
9232 | { |
9233 | .cmd = DEVLINK_CMD_TRAP_GET, | |
9234 | .doit = devlink_nl_cmd_trap_get_doit, | |
5ce76d78 | 9235 | .dumpit = devlink_nl_instance_iter_dump, |
0f420b6c IS |
9236 | /* can be retrieved by unprivileged users */ |
9237 | }, | |
9238 | { | |
9239 | .cmd = DEVLINK_CMD_TRAP_SET, | |
9240 | .doit = devlink_nl_cmd_trap_set_doit, | |
9241 | .flags = GENL_ADMIN_PERM, | |
0f420b6c IS |
9242 | }, |
9243 | { | |
9244 | .cmd = DEVLINK_CMD_TRAP_GROUP_GET, | |
9245 | .doit = devlink_nl_cmd_trap_group_get_doit, | |
5ce76d78 | 9246 | .dumpit = devlink_nl_instance_iter_dump, |
0f420b6c IS |
9247 | /* can be retrieved by unprivileged users */ |
9248 | }, | |
9249 | { | |
9250 | .cmd = DEVLINK_CMD_TRAP_GROUP_SET, | |
9251 | .doit = devlink_nl_cmd_trap_group_set_doit, | |
9252 | .flags = GENL_ADMIN_PERM, | |
0f420b6c | 9253 | }, |
1e8c6619 IS |
9254 | { |
9255 | .cmd = DEVLINK_CMD_TRAP_POLICER_GET, | |
9256 | .doit = devlink_nl_cmd_trap_policer_get_doit, | |
5ce76d78 | 9257 | .dumpit = devlink_nl_instance_iter_dump, |
1e8c6619 IS |
9258 | /* can be retrieved by unprivileged users */ |
9259 | }, | |
9260 | { | |
9261 | .cmd = DEVLINK_CMD_TRAP_POLICER_SET, | |
9262 | .doit = devlink_nl_cmd_trap_policer_set_doit, | |
9263 | .flags = GENL_ADMIN_PERM, | |
1e8c6619 | 9264 | }, |
08f588fa VG |
9265 | { |
9266 | .cmd = DEVLINK_CMD_SELFTESTS_GET, | |
9267 | .doit = devlink_nl_cmd_selftests_get_doit, | |
5ce76d78 | 9268 | .dumpit = devlink_nl_instance_iter_dump, |
08f588fa VG |
9269 | /* can be retrieved by unprivileged users */ |
9270 | }, | |
9271 | { | |
9272 | .cmd = DEVLINK_CMD_SELFTESTS_RUN, | |
9273 | .doit = devlink_nl_cmd_selftests_run, | |
9274 | .flags = GENL_ADMIN_PERM, | |
9275 | }, | |
623cd13b | 9276 | /* -- No new ops here! Use split ops going forward! -- */ |
489111e5 JB |
9277 | }; |
9278 | ||
687125b5 | 9279 | bool devlink_reload_actions_valid(const struct devlink_ops *ops) |
ccdf0721 | 9280 | { |
dc64cc7c MS |
9281 | const struct devlink_reload_combination *comb; |
9282 | int i; | |
9283 | ||
ccdf0721 MS |
9284 | if (!devlink_reload_supported(ops)) { |
9285 | if (WARN_ON(ops->reload_actions)) | |
9286 | return false; | |
9287 | return true; | |
9288 | } | |
9289 | ||
9290 | if (WARN_ON(!ops->reload_actions || | |
9291 | ops->reload_actions & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
9292 | ops->reload_actions >= BIT(__DEVLINK_RELOAD_ACTION_MAX))) | |
9293 | return false; | |
dc64cc7c MS |
9294 | |
9295 | if (WARN_ON(ops->reload_limits & BIT(DEVLINK_RELOAD_LIMIT_UNSPEC) || | |
9296 | ops->reload_limits >= BIT(__DEVLINK_RELOAD_LIMIT_MAX))) | |
9297 | return false; | |
9298 | ||
9299 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) { | |
9300 | comb = &devlink_reload_invalid_combinations[i]; | |
9301 | if (ops->reload_actions == BIT(comb->action) && | |
9302 | ops->reload_limits == BIT(comb->limit)) | |
9303 | return false; | |
9304 | } | |
ccdf0721 MS |
9305 | return true; |
9306 | } | |
9307 | ||
cf530217 LR |
9308 | static void |
9309 | devlink_trap_policer_notify(struct devlink *devlink, | |
9310 | const struct devlink_trap_policer_item *policer_item, | |
9311 | enum devlink_command cmd); | |
9312 | static void | |
9313 | devlink_trap_group_notify(struct devlink *devlink, | |
9314 | const struct devlink_trap_group_item *group_item, | |
9315 | enum devlink_command cmd); | |
9316 | static void devlink_trap_notify(struct devlink *devlink, | |
9317 | const struct devlink_trap_item *trap_item, | |
9318 | enum devlink_command cmd); | |
9319 | ||
687125b5 | 9320 | void devlink_notify_register(struct devlink *devlink) |
cf530217 LR |
9321 | { |
9322 | struct devlink_trap_policer_item *policer_item; | |
9323 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9324 | struct devlink_param_item *param_item; |
cf530217 LR |
9325 | struct devlink_trap_item *trap_item; |
9326 | struct devlink_port *devlink_port; | |
c246f9b5 | 9327 | struct devlink_linecard *linecard; |
ef91abfb LR |
9328 | struct devlink_rate *rate_node; |
9329 | struct devlink_region *region; | |
47b438cc | 9330 | unsigned long port_index; |
cf530217 LR |
9331 | |
9332 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
c246f9b5 JP |
9333 | list_for_each_entry(linecard, &devlink->linecard_list, list) |
9334 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
9335 | ||
47b438cc | 9336 | xa_for_each(&devlink->ports, port_index, devlink_port) |
cf530217 LR |
9337 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
9338 | ||
9339 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) | |
9340 | devlink_trap_policer_notify(devlink, policer_item, | |
9341 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
9342 | ||
9343 | list_for_each_entry(group_item, &devlink->trap_group_list, list) | |
9344 | devlink_trap_group_notify(devlink, group_item, | |
9345 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
9346 | ||
9347 | list_for_each_entry(trap_item, &devlink->trap_list, list) | |
9348 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
9349 | ||
ef91abfb LR |
9350 | list_for_each_entry(rate_node, &devlink->rate_list, list) |
9351 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
9352 | ||
9353 | list_for_each_entry(region, &devlink->region_list, list) | |
9354 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
9355 | ||
99ad92ef LR |
9356 | list_for_each_entry(param_item, &devlink->param_list, list) |
9357 | devlink_param_notify(devlink, 0, param_item, | |
9358 | DEVLINK_CMD_PARAM_NEW); | |
cf530217 LR |
9359 | } |
9360 | ||
687125b5 | 9361 | void devlink_notify_unregister(struct devlink *devlink) |
cf530217 LR |
9362 | { |
9363 | struct devlink_trap_policer_item *policer_item; | |
9364 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9365 | struct devlink_param_item *param_item; |
cf530217 LR |
9366 | struct devlink_trap_item *trap_item; |
9367 | struct devlink_port *devlink_port; | |
ef91abfb LR |
9368 | struct devlink_rate *rate_node; |
9369 | struct devlink_region *region; | |
47b438cc | 9370 | unsigned long port_index; |
cf530217 | 9371 | |
99ad92ef LR |
9372 | list_for_each_entry_reverse(param_item, &devlink->param_list, list) |
9373 | devlink_param_notify(devlink, 0, param_item, | |
9374 | DEVLINK_CMD_PARAM_DEL); | |
cf530217 | 9375 | |
ef91abfb LR |
9376 | list_for_each_entry_reverse(region, &devlink->region_list, list) |
9377 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
9378 | ||
9379 | list_for_each_entry_reverse(rate_node, &devlink->rate_list, list) | |
9380 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); | |
9381 | ||
cf530217 LR |
9382 | list_for_each_entry_reverse(trap_item, &devlink->trap_list, list) |
9383 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
9384 | ||
9385 | list_for_each_entry_reverse(group_item, &devlink->trap_group_list, list) | |
9386 | devlink_trap_group_notify(devlink, group_item, | |
9387 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
9388 | list_for_each_entry_reverse(policer_item, &devlink->trap_policer_list, | |
9389 | list) | |
9390 | devlink_trap_policer_notify(devlink, policer_item, | |
9391 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
9392 | ||
47b438cc | 9393 | xa_for_each(&devlink->ports, port_index, devlink_port) |
cf530217 LR |
9394 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); |
9395 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
9396 | } | |
9397 | ||
136bf27f JP |
9398 | static void devlink_port_type_warn(struct work_struct *work) |
9399 | { | |
9400 | WARN(true, "Type was not set for devlink port."); | |
9401 | } | |
9402 | ||
9403 | static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) | |
9404 | { | |
9405 | /* Ignore CPU and DSA flavours. */ | |
9406 | return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU && | |
cf116634 AL |
9407 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA && |
9408 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_UNUSED; | |
136bf27f JP |
9409 | } |
9410 | ||
4c582234 | 9411 | #define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600) |
136bf27f JP |
9412 | |
9413 | static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port) | |
9414 | { | |
9415 | if (!devlink_port_type_should_warn(devlink_port)) | |
9416 | return; | |
9417 | /* Schedule a work to WARN in case driver does not set port | |
9418 | * type within timeout. | |
9419 | */ | |
9420 | schedule_delayed_work(&devlink_port->type_warn_dw, | |
9421 | DEVLINK_PORT_TYPE_WARN_TIMEOUT); | |
9422 | } | |
9423 | ||
9424 | static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port) | |
9425 | { | |
9426 | if (!devlink_port_type_should_warn(devlink_port)) | |
9427 | return; | |
9428 | cancel_delayed_work_sync(&devlink_port->type_warn_dw); | |
9429 | } | |
9430 | ||
ae3bbc04 JP |
9431 | /** |
9432 | * devlink_port_init() - Init devlink port | |
9433 | * | |
9434 | * @devlink: devlink | |
9435 | * @devlink_port: devlink port | |
9436 | * | |
9437 | * Initialize essencial stuff that is needed for functions | |
9438 | * that may be called before devlink port registration. | |
9439 | * Call to this function is optional and not needed | |
9440 | * in case the driver does not use such functions. | |
9441 | */ | |
9442 | void devlink_port_init(struct devlink *devlink, | |
9443 | struct devlink_port *devlink_port) | |
9444 | { | |
9445 | if (devlink_port->initialized) | |
9446 | return; | |
9447 | devlink_port->devlink = devlink; | |
9448 | INIT_LIST_HEAD(&devlink_port->region_list); | |
9449 | devlink_port->initialized = true; | |
9450 | } | |
9451 | EXPORT_SYMBOL_GPL(devlink_port_init); | |
9452 | ||
9453 | /** | |
9454 | * devlink_port_fini() - Deinitialize devlink port | |
9455 | * | |
9456 | * @devlink_port: devlink port | |
9457 | * | |
9458 | * Deinitialize essencial stuff that is in use for functions | |
9459 | * that may be called after devlink port unregistration. | |
9460 | * Call to this function is optional and not needed | |
9461 | * in case the driver does not use such functions. | |
9462 | */ | |
9463 | void devlink_port_fini(struct devlink_port *devlink_port) | |
9464 | { | |
9465 | WARN_ON(!list_empty(&devlink_port->region_list)); | |
9466 | } | |
9467 | EXPORT_SYMBOL_GPL(devlink_port_fini); | |
9468 | ||
1abfb265 JP |
9469 | /** |
9470 | * devl_port_register() - Register devlink port | |
9471 | * | |
9472 | * @devlink: devlink | |
9473 | * @devlink_port: devlink port | |
9474 | * @port_index: driver-specific numerical identifier of the port | |
9475 | * | |
9476 | * Register devlink port with provided port index. User can use | |
9477 | * any indexing, even hw-related one. devlink_port structure | |
9478 | * is convenient to be embedded inside user driver private structure. | |
9479 | * Note that the caller should take care of zeroing the devlink_port | |
9480 | * structure. | |
9481 | */ | |
2cb7b489 JK |
9482 | int devl_port_register(struct devlink *devlink, |
9483 | struct devlink_port *devlink_port, | |
9484 | unsigned int port_index) | |
9485 | { | |
47b438cc | 9486 | int err; |
2cb7b489 | 9487 | |
47b438cc | 9488 | devl_assert_locked(devlink); |
2cb7b489 | 9489 | |
3fcb698d JP |
9490 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
9491 | ||
ae3bbc04 | 9492 | devlink_port_init(devlink, devlink_port); |
081adcfe | 9493 | devlink_port->registered = true; |
2cb7b489 JK |
9494 | devlink_port->index = port_index; |
9495 | spin_lock_init(&devlink_port->type_lock); | |
9496 | INIT_LIST_HEAD(&devlink_port->reporter_list); | |
47b438cc | 9497 | err = xa_insert(&devlink->ports, port_index, devlink_port, GFP_KERNEL); |
1dea3b4e | 9498 | if (err) |
47b438cc | 9499 | return err; |
2cb7b489 JK |
9500 | |
9501 | INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn); | |
9502 | devlink_port_type_warn_schedule(devlink_port); | |
9503 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9504 | return 0; | |
9505 | } | |
9506 | EXPORT_SYMBOL_GPL(devl_port_register); | |
9507 | ||
bfcd3a46 JP |
9508 | /** |
9509 | * devlink_port_register - Register devlink port | |
9510 | * | |
9511 | * @devlink: devlink | |
9512 | * @devlink_port: devlink port | |
eeaadd82 | 9513 | * @port_index: driver-specific numerical identifier of the port |
bfcd3a46 JP |
9514 | * |
9515 | * Register devlink port with provided port index. User can use | |
9516 | * any indexing, even hw-related one. devlink_port structure | |
9517 | * is convenient to be embedded inside user driver private structure. | |
9518 | * Note that the caller should take care of zeroing the devlink_port | |
9519 | * structure. | |
1abfb265 JP |
9520 | * |
9521 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9522 | */ |
9523 | int devlink_port_register(struct devlink *devlink, | |
9524 | struct devlink_port *devlink_port, | |
9525 | unsigned int port_index) | |
9526 | { | |
2cb7b489 | 9527 | int err; |
d7907a2b | 9528 | |
7715023a | 9529 | devl_lock(devlink); |
2cb7b489 | 9530 | err = devl_port_register(devlink, devlink_port, port_index); |
7715023a | 9531 | devl_unlock(devlink); |
2cb7b489 | 9532 | return err; |
bfcd3a46 JP |
9533 | } |
9534 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
9535 | ||
1abfb265 JP |
9536 | /** |
9537 | * devl_port_unregister() - Unregister devlink port | |
9538 | * | |
9539 | * @devlink_port: devlink port | |
9540 | */ | |
2cb7b489 JK |
9541 | void devl_port_unregister(struct devlink_port *devlink_port) |
9542 | { | |
9543 | lockdep_assert_held(&devlink_port->devlink->lock); | |
e705a621 | 9544 | WARN_ON(devlink_port->type != DEVLINK_PORT_TYPE_NOTSET); |
2cb7b489 JK |
9545 | |
9546 | devlink_port_type_warn_cancel(devlink_port); | |
9547 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
47b438cc | 9548 | xa_erase(&devlink_port->devlink->ports, devlink_port->index); |
2cb7b489 | 9549 | WARN_ON(!list_empty(&devlink_port->reporter_list)); |
081adcfe | 9550 | devlink_port->registered = false; |
2cb7b489 JK |
9551 | } |
9552 | EXPORT_SYMBOL_GPL(devl_port_unregister); | |
9553 | ||
bfcd3a46 JP |
9554 | /** |
9555 | * devlink_port_unregister - Unregister devlink port | |
9556 | * | |
9557 | * @devlink_port: devlink port | |
1abfb265 JP |
9558 | * |
9559 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9560 | */ |
9561 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
9562 | { | |
2406e7e5 AS |
9563 | struct devlink *devlink = devlink_port->devlink; |
9564 | ||
7715023a | 9565 | devl_lock(devlink); |
2cb7b489 | 9566 | devl_port_unregister(devlink_port); |
7715023a | 9567 | devl_unlock(devlink); |
bfcd3a46 JP |
9568 | } |
9569 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
9570 | ||
3ea87ca7 JK |
9571 | static void devlink_port_type_netdev_checks(struct devlink_port *devlink_port, |
9572 | struct net_device *netdev) | |
bfcd3a46 | 9573 | { |
119c0b57 JP |
9574 | const struct net_device_ops *ops = netdev->netdev_ops; |
9575 | ||
746364f2 JP |
9576 | /* If driver registers devlink port, it should set devlink port |
9577 | * attributes accordingly so the compat functions are called | |
9578 | * and the original ops are not used. | |
9579 | */ | |
119c0b57 | 9580 | if (ops->ndo_get_phys_port_name) { |
746364f2 JP |
9581 | /* Some drivers use the same set of ndos for netdevs |
9582 | * that have devlink_port registered and also for | |
9583 | * those who don't. Make sure that ndo_get_phys_port_name | |
9584 | * returns -EOPNOTSUPP here in case it is defined. | |
9585 | * Warn if not. | |
9586 | */ | |
746364f2 JP |
9587 | char name[IFNAMSIZ]; |
9588 | int err; | |
9589 | ||
9590 | err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name)); | |
9591 | WARN_ON(err != -EOPNOTSUPP); | |
9592 | } | |
119c0b57 JP |
9593 | if (ops->ndo_get_port_parent_id) { |
9594 | /* Some drivers use the same set of ndos for netdevs | |
9595 | * that have devlink_port registered and also for | |
9596 | * those who don't. Make sure that ndo_get_port_parent_id | |
9597 | * returns -EOPNOTSUPP here in case it is defined. | |
9598 | * Warn if not. | |
9599 | */ | |
9600 | struct netdev_phys_item_id ppid; | |
9601 | int err; | |
9602 | ||
9603 | err = ops->ndo_get_port_parent_id(netdev, &ppid); | |
9604 | WARN_ON(err != -EOPNOTSUPP); | |
9605 | } | |
3ea87ca7 JK |
9606 | } |
9607 | ||
45791e0d JP |
9608 | static void __devlink_port_type_set(struct devlink_port *devlink_port, |
9609 | enum devlink_port_type type, | |
31265c1e | 9610 | void *type_dev) |
45791e0d JP |
9611 | { |
9612 | struct net_device *netdev = type_dev; | |
9613 | ||
9614 | ASSERT_DEVLINK_PORT_REGISTERED(devlink_port); | |
9615 | ||
9616 | if (type == DEVLINK_PORT_TYPE_NOTSET) { | |
9617 | devlink_port_type_warn_schedule(devlink_port); | |
9618 | } else { | |
9619 | devlink_port_type_warn_cancel(devlink_port); | |
9620 | if (type == DEVLINK_PORT_TYPE_ETH && netdev) | |
9621 | devlink_port_type_netdev_checks(devlink_port, netdev); | |
9622 | } | |
9623 | ||
9624 | spin_lock_bh(&devlink_port->type_lock); | |
9625 | devlink_port->type = type; | |
9626 | switch (type) { | |
9627 | case DEVLINK_PORT_TYPE_ETH: | |
9628 | devlink_port->type_eth.netdev = netdev; | |
31265c1e JP |
9629 | if (netdev) { |
9630 | ASSERT_RTNL(); | |
9631 | devlink_port->type_eth.ifindex = netdev->ifindex; | |
9632 | BUILD_BUG_ON(sizeof(devlink_port->type_eth.ifname) != | |
9633 | sizeof(netdev->name)); | |
9634 | strcpy(devlink_port->type_eth.ifname, netdev->name); | |
9635 | } | |
45791e0d JP |
9636 | break; |
9637 | case DEVLINK_PORT_TYPE_IB: | |
9638 | devlink_port->type_ib.ibdev = type_dev; | |
9639 | break; | |
9640 | default: | |
9641 | break; | |
9642 | } | |
9643 | spin_unlock_bh(&devlink_port->type_lock); | |
31265c1e | 9644 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
45791e0d JP |
9645 | } |
9646 | ||
3ea87ca7 JK |
9647 | /** |
9648 | * devlink_port_type_eth_set - Set port type to Ethernet | |
9649 | * | |
9650 | * @devlink_port: devlink port | |
c8096578 JP |
9651 | * |
9652 | * If driver is calling this, most likely it is doing something wrong. | |
3ea87ca7 | 9653 | */ |
c8096578 | 9654 | void devlink_port_type_eth_set(struct devlink_port *devlink_port) |
3ea87ca7 | 9655 | { |
c8096578 JP |
9656 | dev_warn(devlink_port->devlink->dev, |
9657 | "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", | |
9658 | devlink_port->index); | |
31265c1e | 9659 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, NULL); |
bfcd3a46 JP |
9660 | } |
9661 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
9662 | ||
9663 | /** | |
9664 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
9665 | * | |
9666 | * @devlink_port: devlink port | |
9667 | * @ibdev: related IB device | |
9668 | */ | |
9669 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
9670 | struct ib_device *ibdev) | |
9671 | { | |
31265c1e | 9672 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev); |
bfcd3a46 JP |
9673 | } |
9674 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
9675 | ||
9676 | /** | |
9677 | * devlink_port_type_clear - Clear port type | |
9678 | * | |
9679 | * @devlink_port: devlink port | |
c8096578 JP |
9680 | * |
9681 | * If driver is calling this for clearing Ethernet type, most likely | |
9682 | * it is doing something wrong. | |
bfcd3a46 JP |
9683 | */ |
9684 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
9685 | { | |
c8096578 JP |
9686 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) |
9687 | dev_warn(devlink_port->devlink->dev, | |
9688 | "devlink port type for port %d cleared without a software interface reference, device type not supported by the kernel?\n", | |
9689 | devlink_port->index); | |
31265c1e | 9690 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); |
bfcd3a46 JP |
9691 | } |
9692 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
9693 | ||
687125b5 JK |
9694 | int devlink_port_netdevice_event(struct notifier_block *nb, |
9695 | unsigned long event, void *ptr) | |
02a68a47 JP |
9696 | { |
9697 | struct net_device *netdev = netdev_notifier_info_to_dev(ptr); | |
9698 | struct devlink_port *devlink_port = netdev->devlink_port; | |
9699 | struct devlink *devlink; | |
9700 | ||
9701 | devlink = container_of(nb, struct devlink, netdevice_nb); | |
9702 | ||
9703 | if (!devlink_port || devlink_port->devlink != devlink) | |
9704 | return NOTIFY_OK; | |
9705 | ||
9706 | switch (event) { | |
9707 | case NETDEV_POST_INIT: | |
9708 | /* Set the type but not netdev pointer. It is going to be set | |
9709 | * later on by NETDEV_REGISTER event. Happens once during | |
9710 | * netdevice register | |
9711 | */ | |
9712 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, | |
31265c1e | 9713 | NULL); |
02a68a47 JP |
9714 | break; |
9715 | case NETDEV_REGISTER: | |
31265c1e | 9716 | case NETDEV_CHANGENAME: |
02a68a47 JP |
9717 | /* Set the netdev on top of previously set type. Note this |
9718 | * event happens also during net namespace change so here | |
9719 | * we take into account netdev pointer appearing in this | |
9720 | * namespace. | |
9721 | */ | |
1fb22ed6 | 9722 | __devlink_port_type_set(devlink_port, devlink_port->type, |
31265c1e | 9723 | netdev); |
02a68a47 JP |
9724 | break; |
9725 | case NETDEV_UNREGISTER: | |
9726 | /* Clear netdev pointer, but not the type. This event happens | |
9727 | * also during net namespace change so we need to clear | |
9728 | * pointer to netdev that is going to another net namespace. | |
9729 | */ | |
1fb22ed6 | 9730 | __devlink_port_type_set(devlink_port, devlink_port->type, |
31265c1e | 9731 | NULL); |
02a68a47 JP |
9732 | break; |
9733 | case NETDEV_PRE_UNINIT: | |
9734 | /* Clear the type and the netdev pointer. Happens one during | |
9735 | * netdevice unregister. | |
9736 | */ | |
9737 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, | |
31265c1e | 9738 | NULL); |
02a68a47 JP |
9739 | break; |
9740 | } | |
9741 | ||
9742 | return NOTIFY_OK; | |
9743 | } | |
9744 | ||
378ef01b | 9745 | static int __devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 9746 | enum devlink_port_flavour flavour) |
378ef01b PP |
9747 | { |
9748 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
9749 | ||
10a429ba | 9750 | devlink_port->attrs_set = true; |
378ef01b | 9751 | attrs->flavour = flavour; |
71ad8d55 | 9752 | if (attrs->switch_id.id_len) { |
46737a19 | 9753 | devlink_port->switch_port = true; |
71ad8d55 DR |
9754 | if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN)) |
9755 | attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN; | |
378ef01b | 9756 | } else { |
46737a19 | 9757 | devlink_port->switch_port = false; |
378ef01b PP |
9758 | } |
9759 | return 0; | |
9760 | } | |
9761 | ||
bfcd3a46 | 9762 | /** |
b9ffcbaf | 9763 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
9764 | * |
9765 | * @devlink_port: devlink port | |
71ad8d55 | 9766 | * @attrs: devlink port attrs |
bfcd3a46 | 9767 | */ |
b9ffcbaf | 9768 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 9769 | struct devlink_port_attrs *attrs) |
bfcd3a46 | 9770 | { |
378ef01b | 9771 | int ret; |
b9ffcbaf | 9772 | |
3fcb698d JP |
9773 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
9774 | ||
71ad8d55 DR |
9775 | devlink_port->attrs = *attrs; |
9776 | ret = __devlink_port_attrs_set(devlink_port, attrs->flavour); | |
378ef01b | 9777 | if (ret) |
45b86112 | 9778 | return; |
a0f49b54 | 9779 | WARN_ON(attrs->splittable && attrs->split); |
bfcd3a46 | 9780 | } |
b9ffcbaf | 9781 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 9782 | |
98fd2d65 PP |
9783 | /** |
9784 | * devlink_port_attrs_pci_pf_set - Set PCI PF port attributes | |
9785 | * | |
9786 | * @devlink_port: devlink port | |
3a2d9588 | 9787 | * @controller: associated controller number for the devlink port instance |
98fd2d65 | 9788 | * @pf: associated PF for the devlink port instance |
05b595e9 | 9789 | * @external: indicates if the port is for an external controller |
98fd2d65 | 9790 | */ |
3a2d9588 PP |
9791 | void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller, |
9792 | u16 pf, bool external) | |
98fd2d65 PP |
9793 | { |
9794 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
9795 | int ret; | |
9796 | ||
3fcb698d JP |
9797 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
9798 | ||
98fd2d65 | 9799 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 9800 | DEVLINK_PORT_FLAVOUR_PCI_PF); |
98fd2d65 PP |
9801 | if (ret) |
9802 | return; | |
3a2d9588 | 9803 | attrs->pci_pf.controller = controller; |
98fd2d65 | 9804 | attrs->pci_pf.pf = pf; |
05b595e9 | 9805 | attrs->pci_pf.external = external; |
98fd2d65 PP |
9806 | } |
9807 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set); | |
9808 | ||
e41b6bf3 PP |
9809 | /** |
9810 | * devlink_port_attrs_pci_vf_set - Set PCI VF port attributes | |
9811 | * | |
9812 | * @devlink_port: devlink port | |
3a2d9588 | 9813 | * @controller: associated controller number for the devlink port instance |
e41b6bf3 PP |
9814 | * @pf: associated PF for the devlink port instance |
9815 | * @vf: associated VF of a PF for the devlink port instance | |
05b595e9 | 9816 | * @external: indicates if the port is for an external controller |
e41b6bf3 | 9817 | */ |
3a2d9588 | 9818 | void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller, |
05b595e9 | 9819 | u16 pf, u16 vf, bool external) |
e41b6bf3 PP |
9820 | { |
9821 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
9822 | int ret; | |
9823 | ||
3fcb698d JP |
9824 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
9825 | ||
e41b6bf3 | 9826 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 9827 | DEVLINK_PORT_FLAVOUR_PCI_VF); |
e41b6bf3 PP |
9828 | if (ret) |
9829 | return; | |
3a2d9588 | 9830 | attrs->pci_vf.controller = controller; |
e41b6bf3 PP |
9831 | attrs->pci_vf.pf = pf; |
9832 | attrs->pci_vf.vf = vf; | |
05b595e9 | 9833 | attrs->pci_vf.external = external; |
e41b6bf3 PP |
9834 | } |
9835 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set); | |
9836 | ||
b8288837 PP |
9837 | /** |
9838 | * devlink_port_attrs_pci_sf_set - Set PCI SF port attributes | |
9839 | * | |
9840 | * @devlink_port: devlink port | |
9841 | * @controller: associated controller number for the devlink port instance | |
9842 | * @pf: associated PF for the devlink port instance | |
9843 | * @sf: associated SF of a PF for the devlink port instance | |
a1ab3e45 | 9844 | * @external: indicates if the port is for an external controller |
b8288837 PP |
9845 | */ |
9846 | void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port, u32 controller, | |
a1ab3e45 | 9847 | u16 pf, u32 sf, bool external) |
b8288837 PP |
9848 | { |
9849 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
9850 | int ret; | |
9851 | ||
3fcb698d JP |
9852 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
9853 | ||
b8288837 PP |
9854 | ret = __devlink_port_attrs_set(devlink_port, |
9855 | DEVLINK_PORT_FLAVOUR_PCI_SF); | |
9856 | if (ret) | |
9857 | return; | |
9858 | attrs->pci_sf.controller = controller; | |
9859 | attrs->pci_sf.pf = pf; | |
9860 | attrs->pci_sf.sf = sf; | |
a1ab3e45 | 9861 | attrs->pci_sf.external = external; |
b8288837 PP |
9862 | } |
9863 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_sf_set); | |
9864 | ||
caba177d MW |
9865 | /** |
9866 | * devl_rate_node_create - create devlink rate node | |
9867 | * @devlink: devlink instance | |
9868 | * @priv: driver private data | |
9869 | * @node_name: name of the resulting node | |
9870 | * @parent: parent devlink_rate struct | |
9871 | * | |
9872 | * Create devlink rate object of type node | |
9873 | */ | |
9874 | struct devlink_rate * | |
9875 | devl_rate_node_create(struct devlink *devlink, void *priv, char *node_name, | |
9876 | struct devlink_rate *parent) | |
9877 | { | |
9878 | struct devlink_rate *rate_node; | |
9879 | ||
9880 | rate_node = devlink_rate_node_get_by_name(devlink, node_name); | |
9881 | if (!IS_ERR(rate_node)) | |
9882 | return ERR_PTR(-EEXIST); | |
9883 | ||
9884 | rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL); | |
9885 | if (!rate_node) | |
9886 | return ERR_PTR(-ENOMEM); | |
9887 | ||
9888 | if (parent) { | |
9889 | rate_node->parent = parent; | |
9890 | refcount_inc(&rate_node->parent->refcnt); | |
9891 | } | |
9892 | ||
9893 | rate_node->type = DEVLINK_RATE_TYPE_NODE; | |
9894 | rate_node->devlink = devlink; | |
9895 | rate_node->priv = priv; | |
9896 | ||
9897 | rate_node->name = kstrdup(node_name, GFP_KERNEL); | |
9898 | if (!rate_node->name) { | |
9899 | kfree(rate_node); | |
9900 | return ERR_PTR(-ENOMEM); | |
9901 | } | |
9902 | ||
9903 | refcount_set(&rate_node->refcnt, 1); | |
9904 | list_add(&rate_node->list, &devlink->rate_list); | |
9905 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
9906 | return rate_node; | |
9907 | } | |
9908 | EXPORT_SYMBOL_GPL(devl_rate_node_create); | |
9909 | ||
4677efc4 | 9910 | /** |
8879b32a | 9911 | * devl_rate_leaf_create - create devlink rate leaf |
4677efc4 DL |
9912 | * @devlink_port: devlink port object to create rate object on |
9913 | * @priv: driver private data | |
f2fc15e2 | 9914 | * @parent: parent devlink_rate struct |
4677efc4 DL |
9915 | * |
9916 | * Create devlink rate object of type leaf on provided @devlink_port. | |
4677efc4 | 9917 | */ |
f2fc15e2 MW |
9918 | int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv, |
9919 | struct devlink_rate *parent) | |
4677efc4 DL |
9920 | { |
9921 | struct devlink *devlink = devlink_port->devlink; | |
9922 | struct devlink_rate *devlink_rate; | |
9923 | ||
8879b32a JK |
9924 | devl_assert_locked(devlink_port->devlink); |
9925 | ||
9926 | if (WARN_ON(devlink_port->devlink_rate)) | |
9927 | return -EBUSY; | |
9928 | ||
4677efc4 DL |
9929 | devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL); |
9930 | if (!devlink_rate) | |
9931 | return -ENOMEM; | |
9932 | ||
f2fc15e2 MW |
9933 | if (parent) { |
9934 | devlink_rate->parent = parent; | |
9935 | refcount_inc(&devlink_rate->parent->refcnt); | |
9936 | } | |
9937 | ||
4677efc4 DL |
9938 | devlink_rate->type = DEVLINK_RATE_TYPE_LEAF; |
9939 | devlink_rate->devlink = devlink; | |
9940 | devlink_rate->devlink_port = devlink_port; | |
9941 | devlink_rate->priv = priv; | |
9942 | list_add_tail(&devlink_rate->list, &devlink->rate_list); | |
9943 | devlink_port->devlink_rate = devlink_rate; | |
9944 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
4677efc4 DL |
9945 | |
9946 | return 0; | |
9947 | } | |
8879b32a JK |
9948 | EXPORT_SYMBOL_GPL(devl_rate_leaf_create); |
9949 | ||
df539fc6 MS |
9950 | /** |
9951 | * devl_rate_leaf_destroy - destroy devlink rate leaf | |
9952 | * | |
9953 | * @devlink_port: devlink port linked to the rate object | |
9954 | * | |
9955 | * Destroy the devlink rate object of type leaf on provided @devlink_port. | |
9956 | */ | |
8879b32a JK |
9957 | void devl_rate_leaf_destroy(struct devlink_port *devlink_port) |
9958 | { | |
9959 | struct devlink_rate *devlink_rate = devlink_port->devlink_rate; | |
9960 | ||
9961 | devl_assert_locked(devlink_port->devlink); | |
9962 | if (!devlink_rate) | |
9963 | return; | |
9964 | ||
9965 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL); | |
9966 | if (devlink_rate->parent) | |
9967 | refcount_dec(&devlink_rate->parent->refcnt); | |
9968 | list_del(&devlink_rate->list); | |
9969 | devlink_port->devlink_rate = NULL; | |
9970 | kfree(devlink_rate); | |
9971 | } | |
9972 | EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy); | |
9973 | ||
a8ecb93e | 9974 | /** |
8879b32a | 9975 | * devl_rate_nodes_destroy - destroy all devlink rate nodes on device |
a8ecb93e DL |
9976 | * @devlink: devlink instance |
9977 | * | |
d7555984 DL |
9978 | * Unset parent for all rate objects and destroy all rate nodes |
9979 | * on specified device. | |
a8ecb93e | 9980 | */ |
8879b32a | 9981 | void devl_rate_nodes_destroy(struct devlink *devlink) |
a8ecb93e DL |
9982 | { |
9983 | static struct devlink_rate *devlink_rate, *tmp; | |
9984 | const struct devlink_ops *ops = devlink->ops; | |
9985 | ||
8879b32a JK |
9986 | devl_assert_locked(devlink); |
9987 | ||
d7555984 DL |
9988 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
9989 | if (!devlink_rate->parent) | |
9990 | continue; | |
9991 | ||
9992 | refcount_dec(&devlink_rate->parent->refcnt); | |
9993 | if (devlink_rate_is_leaf(devlink_rate)) | |
9994 | ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
9995 | NULL, NULL); | |
9996 | else if (devlink_rate_is_node(devlink_rate)) | |
9997 | ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
9998 | NULL, NULL); | |
9999 | } | |
a8ecb93e DL |
10000 | list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) { |
10001 | if (devlink_rate_is_node(devlink_rate)) { | |
10002 | ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL); | |
10003 | list_del(&devlink_rate->list); | |
10004 | kfree(devlink_rate->name); | |
10005 | kfree(devlink_rate); | |
10006 | } | |
10007 | } | |
8879b32a JK |
10008 | } |
10009 | EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy); | |
10010 | ||
b8375859 JP |
10011 | /** |
10012 | * devlink_port_linecard_set - Link port with a linecard | |
10013 | * | |
10014 | * @devlink_port: devlink port | |
10015 | * @linecard: devlink linecard | |
10016 | */ | |
10017 | void devlink_port_linecard_set(struct devlink_port *devlink_port, | |
10018 | struct devlink_linecard *linecard) | |
10019 | { | |
3fcb698d JP |
10020 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10021 | ||
b8375859 JP |
10022 | devlink_port->linecard = linecard; |
10023 | } | |
10024 | EXPORT_SYMBOL_GPL(devlink_port_linecard_set); | |
10025 | ||
af3836df JP |
10026 | static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, |
10027 | char *name, size_t len) | |
08474c1a JP |
10028 | { |
10029 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10030 | int n = 0; | |
10031 | ||
10a429ba | 10032 | if (!devlink_port->attrs_set) |
08474c1a JP |
10033 | return -EOPNOTSUPP; |
10034 | ||
10035 | switch (attrs->flavour) { | |
10036 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
b8375859 JP |
10037 | if (devlink_port->linecard) |
10038 | n = snprintf(name, len, "l%u", | |
10039 | devlink_port->linecard->index); | |
10040 | if (n < len) | |
10041 | n += snprintf(name + n, len - n, "p%u", | |
10042 | attrs->phys.port_number); | |
f285f37c JP |
10043 | if (n < len && attrs->split) |
10044 | n += snprintf(name + n, len - n, "s%u", | |
10045 | attrs->phys.split_subport_number); | |
08474c1a JP |
10046 | break; |
10047 | case DEVLINK_PORT_FLAVOUR_CPU: | |
10048 | case DEVLINK_PORT_FLAVOUR_DSA: | |
cf116634 | 10049 | case DEVLINK_PORT_FLAVOUR_UNUSED: |
08474c1a JP |
10050 | /* As CPU and DSA ports do not have a netdevice associated |
10051 | * case should not ever happen. | |
10052 | */ | |
10053 | WARN_ON(1); | |
10054 | return -EINVAL; | |
98fd2d65 | 10055 | case DEVLINK_PORT_FLAVOUR_PCI_PF: |
66b17082 PP |
10056 | if (attrs->pci_pf.external) { |
10057 | n = snprintf(name, len, "c%u", attrs->pci_pf.controller); | |
10058 | if (n >= len) | |
10059 | return -EINVAL; | |
10060 | len -= n; | |
10061 | name += n; | |
10062 | } | |
98fd2d65 PP |
10063 | n = snprintf(name, len, "pf%u", attrs->pci_pf.pf); |
10064 | break; | |
e41b6bf3 | 10065 | case DEVLINK_PORT_FLAVOUR_PCI_VF: |
66b17082 PP |
10066 | if (attrs->pci_vf.external) { |
10067 | n = snprintf(name, len, "c%u", attrs->pci_vf.controller); | |
10068 | if (n >= len) | |
10069 | return -EINVAL; | |
10070 | len -= n; | |
10071 | name += n; | |
10072 | } | |
e41b6bf3 PP |
10073 | n = snprintf(name, len, "pf%uvf%u", |
10074 | attrs->pci_vf.pf, attrs->pci_vf.vf); | |
10075 | break; | |
b8288837 | 10076 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
a1ab3e45 PP |
10077 | if (attrs->pci_sf.external) { |
10078 | n = snprintf(name, len, "c%u", attrs->pci_sf.controller); | |
10079 | if (n >= len) | |
10080 | return -EINVAL; | |
10081 | len -= n; | |
10082 | name += n; | |
10083 | } | |
b8288837 PP |
10084 | n = snprintf(name, len, "pf%usf%u", attrs->pci_sf.pf, |
10085 | attrs->pci_sf.sf); | |
10086 | break; | |
149ea30f PP |
10087 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
10088 | return -EOPNOTSUPP; | |
08474c1a JP |
10089 | } |
10090 | ||
10091 | if (n >= len) | |
10092 | return -EINVAL; | |
10093 | ||
10094 | return 0; | |
10095 | } | |
af3836df | 10096 | |
fcdc8ce2 JP |
10097 | static int devlink_linecard_types_init(struct devlink_linecard *linecard) |
10098 | { | |
10099 | struct devlink_linecard_type *linecard_type; | |
10100 | unsigned int count; | |
10101 | int i; | |
10102 | ||
10103 | count = linecard->ops->types_count(linecard, linecard->priv); | |
10104 | linecard->types = kmalloc_array(count, sizeof(*linecard_type), | |
10105 | GFP_KERNEL); | |
10106 | if (!linecard->types) | |
10107 | return -ENOMEM; | |
10108 | linecard->types_count = count; | |
10109 | ||
10110 | for (i = 0; i < count; i++) { | |
10111 | linecard_type = &linecard->types[i]; | |
10112 | linecard->ops->types_get(linecard, linecard->priv, i, | |
10113 | &linecard_type->type, | |
10114 | &linecard_type->priv); | |
10115 | } | |
10116 | return 0; | |
10117 | } | |
10118 | ||
10119 | static void devlink_linecard_types_fini(struct devlink_linecard *linecard) | |
10120 | { | |
10121 | kfree(linecard->types); | |
10122 | } | |
10123 | ||
c246f9b5 | 10124 | /** |
5cc9049c | 10125 | * devl_linecard_create - Create devlink linecard |
c246f9b5 JP |
10126 | * |
10127 | * @devlink: devlink | |
10128 | * @linecard_index: driver-specific numerical identifier of the linecard | |
fcdc8ce2 JP |
10129 | * @ops: linecards ops |
10130 | * @priv: user priv pointer | |
c246f9b5 JP |
10131 | * |
10132 | * Create devlink linecard instance with provided linecard index. | |
10133 | * Caller can use any indexing, even hw-related one. | |
fcdc8ce2 JP |
10134 | * |
10135 | * Return: Line card structure or an ERR_PTR() encoded error code. | |
c246f9b5 | 10136 | */ |
fcdc8ce2 | 10137 | struct devlink_linecard * |
5cc9049c JP |
10138 | devl_linecard_create(struct devlink *devlink, unsigned int linecard_index, |
10139 | const struct devlink_linecard_ops *ops, void *priv) | |
c246f9b5 JP |
10140 | { |
10141 | struct devlink_linecard *linecard; | |
fcdc8ce2 JP |
10142 | int err; |
10143 | ||
10144 | if (WARN_ON(!ops || !ops->provision || !ops->unprovision || | |
10145 | !ops->types_count || !ops->types_get)) | |
10146 | return ERR_PTR(-EINVAL); | |
c246f9b5 | 10147 | |
5cc9049c | 10148 | if (devlink_linecard_index_exists(devlink, linecard_index)) |
c246f9b5 | 10149 | return ERR_PTR(-EEXIST); |
c246f9b5 JP |
10150 | |
10151 | linecard = kzalloc(sizeof(*linecard), GFP_KERNEL); | |
5cc9049c | 10152 | if (!linecard) |
c246f9b5 | 10153 | return ERR_PTR(-ENOMEM); |
c246f9b5 JP |
10154 | |
10155 | linecard->devlink = devlink; | |
10156 | linecard->index = linecard_index; | |
fcdc8ce2 JP |
10157 | linecard->ops = ops; |
10158 | linecard->priv = priv; | |
10159 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
10160 | mutex_init(&linecard->state_lock); | |
10161 | ||
10162 | err = devlink_linecard_types_init(linecard); | |
10163 | if (err) { | |
10164 | mutex_destroy(&linecard->state_lock); | |
10165 | kfree(linecard); | |
fcdc8ce2 JP |
10166 | return ERR_PTR(err); |
10167 | } | |
10168 | ||
c246f9b5 | 10169 | list_add_tail(&linecard->list, &devlink->linecard_list); |
c246f9b5 JP |
10170 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); |
10171 | return linecard; | |
10172 | } | |
5cc9049c | 10173 | EXPORT_SYMBOL_GPL(devl_linecard_create); |
c246f9b5 JP |
10174 | |
10175 | /** | |
5cc9049c | 10176 | * devl_linecard_destroy - Destroy devlink linecard |
c246f9b5 JP |
10177 | * |
10178 | * @linecard: devlink linecard | |
10179 | */ | |
5cc9049c | 10180 | void devl_linecard_destroy(struct devlink_linecard *linecard) |
c246f9b5 | 10181 | { |
c246f9b5 | 10182 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL); |
c246f9b5 | 10183 | list_del(&linecard->list); |
fcdc8ce2 | 10184 | devlink_linecard_types_fini(linecard); |
3a10173f JP |
10185 | mutex_destroy(&linecard->state_lock); |
10186 | kfree(linecard); | |
c246f9b5 | 10187 | } |
5cc9049c | 10188 | EXPORT_SYMBOL_GPL(devl_linecard_destroy); |
c246f9b5 | 10189 | |
fcdc8ce2 JP |
10190 | /** |
10191 | * devlink_linecard_provision_set - Set provisioning on linecard | |
10192 | * | |
10193 | * @linecard: devlink linecard | |
10194 | * @type: linecard type | |
10195 | * | |
10196 | * This is either called directly from the provision() op call or | |
10197 | * as a result of the provision() op call asynchronously. | |
10198 | */ | |
10199 | void devlink_linecard_provision_set(struct devlink_linecard *linecard, | |
10200 | const char *type) | |
10201 | { | |
10202 | mutex_lock(&linecard->state_lock); | |
10203 | WARN_ON(linecard->type && strcmp(linecard->type, type)); | |
10204 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10205 | linecard->type = type; | |
10206 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10207 | mutex_unlock(&linecard->state_lock); | |
10208 | } | |
10209 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_set); | |
10210 | ||
10211 | /** | |
10212 | * devlink_linecard_provision_clear - Clear provisioning on linecard | |
10213 | * | |
10214 | * @linecard: devlink linecard | |
10215 | * | |
10216 | * This is either called directly from the unprovision() op call or | |
10217 | * as a result of the unprovision() op call asynchronously. | |
10218 | */ | |
10219 | void devlink_linecard_provision_clear(struct devlink_linecard *linecard) | |
10220 | { | |
10221 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10222 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10223 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; |
10224 | linecard->type = NULL; | |
10225 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10226 | mutex_unlock(&linecard->state_lock); | |
10227 | } | |
10228 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_clear); | |
10229 | ||
10230 | /** | |
10231 | * devlink_linecard_provision_fail - Fail provisioning on linecard | |
10232 | * | |
10233 | * @linecard: devlink linecard | |
10234 | * | |
10235 | * This is either called directly from the provision() op call or | |
10236 | * as a result of the provision() op call asynchronously. | |
10237 | */ | |
10238 | void devlink_linecard_provision_fail(struct devlink_linecard *linecard) | |
10239 | { | |
10240 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10241 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10242 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED; |
10243 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10244 | mutex_unlock(&linecard->state_lock); | |
10245 | } | |
10246 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail); | |
10247 | ||
fc9f50d5 JP |
10248 | /** |
10249 | * devlink_linecard_activate - Set linecard active | |
10250 | * | |
10251 | * @linecard: devlink linecard | |
10252 | */ | |
10253 | void devlink_linecard_activate(struct devlink_linecard *linecard) | |
10254 | { | |
10255 | mutex_lock(&linecard->state_lock); | |
10256 | WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED); | |
10257 | linecard->state = DEVLINK_LINECARD_STATE_ACTIVE; | |
10258 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10259 | mutex_unlock(&linecard->state_lock); | |
10260 | } | |
10261 | EXPORT_SYMBOL_GPL(devlink_linecard_activate); | |
10262 | ||
10263 | /** | |
10264 | * devlink_linecard_deactivate - Set linecard inactive | |
10265 | * | |
10266 | * @linecard: devlink linecard | |
10267 | */ | |
10268 | void devlink_linecard_deactivate(struct devlink_linecard *linecard) | |
10269 | { | |
10270 | mutex_lock(&linecard->state_lock); | |
10271 | switch (linecard->state) { | |
10272 | case DEVLINK_LINECARD_STATE_ACTIVE: | |
10273 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10274 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10275 | break; | |
10276 | case DEVLINK_LINECARD_STATE_UNPROVISIONING: | |
10277 | /* Line card is being deactivated as part | |
10278 | * of unprovisioning flow. | |
10279 | */ | |
10280 | break; | |
10281 | default: | |
10282 | WARN_ON(1); | |
10283 | break; | |
10284 | } | |
10285 | mutex_unlock(&linecard->state_lock); | |
10286 | } | |
10287 | EXPORT_SYMBOL_GPL(devlink_linecard_deactivate); | |
10288 | ||
7b2d9a1a JP |
10289 | /** |
10290 | * devlink_linecard_nested_dl_set - Attach/detach nested devlink | |
10291 | * instance to linecard. | |
10292 | * | |
10293 | * @linecard: devlink linecard | |
10294 | * @nested_devlink: devlink instance to attach or NULL to detach | |
10295 | */ | |
10296 | void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard, | |
10297 | struct devlink *nested_devlink) | |
10298 | { | |
10299 | mutex_lock(&linecard->state_lock); | |
10300 | linecard->nested_devlink = nested_devlink; | |
10301 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10302 | mutex_unlock(&linecard->state_lock); | |
10303 | } | |
10304 | EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set); | |
10305 | ||
755cfa69 JP |
10306 | int devl_sb_register(struct devlink *devlink, unsigned int sb_index, |
10307 | u32 size, u16 ingress_pools_count, | |
10308 | u16 egress_pools_count, u16 ingress_tc_count, | |
10309 | u16 egress_tc_count) | |
bf797471 JP |
10310 | { |
10311 | struct devlink_sb *devlink_sb; | |
bf797471 | 10312 | |
755cfa69 JP |
10313 | lockdep_assert_held(&devlink->lock); |
10314 | ||
10315 | if (devlink_sb_index_exists(devlink, sb_index)) | |
10316 | return -EEXIST; | |
bf797471 JP |
10317 | |
10318 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
755cfa69 JP |
10319 | if (!devlink_sb) |
10320 | return -ENOMEM; | |
bf797471 JP |
10321 | devlink_sb->index = sb_index; |
10322 | devlink_sb->size = size; | |
10323 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
10324 | devlink_sb->egress_pools_count = egress_pools_count; | |
10325 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
10326 | devlink_sb->egress_tc_count = egress_tc_count; | |
10327 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
755cfa69 JP |
10328 | return 0; |
10329 | } | |
10330 | EXPORT_SYMBOL_GPL(devl_sb_register); | |
10331 | ||
10332 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, | |
10333 | u32 size, u16 ingress_pools_count, | |
10334 | u16 egress_pools_count, u16 ingress_tc_count, | |
10335 | u16 egress_tc_count) | |
10336 | { | |
10337 | int err; | |
10338 | ||
10339 | devl_lock(devlink); | |
10340 | err = devl_sb_register(devlink, sb_index, size, ingress_pools_count, | |
10341 | egress_pools_count, ingress_tc_count, | |
10342 | egress_tc_count); | |
7715023a | 10343 | devl_unlock(devlink); |
bf797471 JP |
10344 | return err; |
10345 | } | |
10346 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
10347 | ||
755cfa69 | 10348 | void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index) |
bf797471 JP |
10349 | { |
10350 | struct devlink_sb *devlink_sb; | |
10351 | ||
755cfa69 JP |
10352 | lockdep_assert_held(&devlink->lock); |
10353 | ||
bf797471 JP |
10354 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
10355 | WARN_ON(!devlink_sb); | |
10356 | list_del(&devlink_sb->list); | |
bf797471 JP |
10357 | kfree(devlink_sb); |
10358 | } | |
755cfa69 JP |
10359 | EXPORT_SYMBOL_GPL(devl_sb_unregister); |
10360 | ||
10361 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
10362 | { | |
10363 | devl_lock(devlink); | |
10364 | devl_sb_unregister(devlink, sb_index); | |
10365 | devl_unlock(devlink); | |
10366 | } | |
bf797471 JP |
10367 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); |
10368 | ||
70a2ff89 JP |
10369 | /** |
10370 | * devl_dpipe_headers_register - register dpipe headers | |
10371 | * | |
10372 | * @devlink: devlink | |
10373 | * @dpipe_headers: dpipe header array | |
10374 | * | |
10375 | * Register the headers supported by hardware. | |
10376 | */ | |
10377 | void devl_dpipe_headers_register(struct devlink *devlink, | |
10378 | struct devlink_dpipe_headers *dpipe_headers) | |
10379 | { | |
10380 | lockdep_assert_held(&devlink->lock); | |
10381 | ||
10382 | devlink->dpipe_headers = dpipe_headers; | |
10383 | } | |
10384 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_register); | |
10385 | ||
70a2ff89 JP |
10386 | /** |
10387 | * devl_dpipe_headers_unregister - unregister dpipe headers | |
10388 | * | |
10389 | * @devlink: devlink | |
10390 | * | |
10391 | * Unregister the headers supported by hardware. | |
10392 | */ | |
10393 | void devl_dpipe_headers_unregister(struct devlink *devlink) | |
10394 | { | |
10395 | lockdep_assert_held(&devlink->lock); | |
10396 | ||
10397 | devlink->dpipe_headers = NULL; | |
10398 | } | |
10399 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_unregister); | |
10400 | ||
1555d204 AS |
10401 | /** |
10402 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
10403 | * required | |
10404 | * @devlink: devlink | |
10405 | * @table_name: tables name | |
10406 | * | |
10407 | * Used by driver to check if counter allocation is required. | |
10408 | * After counter allocation is turned on the table entries | |
10409 | * are updated to include counter statistics. | |
10410 | * | |
10411 | * After that point on the driver must respect the counter | |
10412 | * state so that each entry added to the table is added | |
10413 | * with a counter. | |
10414 | */ | |
10415 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
10416 | const char *table_name) | |
10417 | { | |
10418 | struct devlink_dpipe_table *table; | |
10419 | bool enabled; | |
10420 | ||
10421 | rcu_read_lock(); | |
10422 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 10423 | table_name, devlink); |
1555d204 AS |
10424 | enabled = false; |
10425 | if (table) | |
10426 | enabled = table->counters_enabled; | |
10427 | rcu_read_unlock(); | |
10428 | return enabled; | |
10429 | } | |
10430 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
10431 | ||
10432 | /** | |
70a2ff89 | 10433 | * devl_dpipe_table_register - register dpipe table |
1555d204 | 10434 | * |
70a2ff89 JP |
10435 | * @devlink: devlink |
10436 | * @table_name: table name | |
10437 | * @table_ops: table ops | |
10438 | * @priv: priv | |
10439 | * @counter_control_extern: external control for counters | |
1555d204 | 10440 | */ |
70a2ff89 JP |
10441 | int devl_dpipe_table_register(struct devlink *devlink, |
10442 | const char *table_name, | |
10443 | struct devlink_dpipe_table_ops *table_ops, | |
10444 | void *priv, bool counter_control_extern) | |
1555d204 AS |
10445 | { |
10446 | struct devlink_dpipe_table *table; | |
70a2ff89 JP |
10447 | |
10448 | lockdep_assert_held(&devlink->lock); | |
1555d204 | 10449 | |
ffd3cdcc AS |
10450 | if (WARN_ON(!table_ops->size_get)) |
10451 | return -EINVAL; | |
10452 | ||
2eb51c75 | 10453 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name, |
70a2ff89 JP |
10454 | devlink)) |
10455 | return -EEXIST; | |
6132c1d9 | 10456 | |
1555d204 | 10457 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
70a2ff89 JP |
10458 | if (!table) |
10459 | return -ENOMEM; | |
1555d204 AS |
10460 | |
10461 | table->name = table_name; | |
10462 | table->table_ops = table_ops; | |
10463 | table->priv = priv; | |
1555d204 AS |
10464 | table->counter_control_extern = counter_control_extern; |
10465 | ||
1555d204 | 10466 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
70a2ff89 JP |
10467 | |
10468 | return 0; | |
10469 | } | |
10470 | EXPORT_SYMBOL_GPL(devl_dpipe_table_register); | |
10471 | ||
1555d204 | 10472 | /** |
70a2ff89 | 10473 | * devl_dpipe_table_unregister - unregister dpipe table |
1555d204 | 10474 | * |
70a2ff89 JP |
10475 | * @devlink: devlink |
10476 | * @table_name: table name | |
1555d204 | 10477 | */ |
70a2ff89 JP |
10478 | void devl_dpipe_table_unregister(struct devlink *devlink, |
10479 | const char *table_name) | |
1555d204 AS |
10480 | { |
10481 | struct devlink_dpipe_table *table; | |
10482 | ||
70a2ff89 JP |
10483 | lockdep_assert_held(&devlink->lock); |
10484 | ||
1555d204 | 10485 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
2eb51c75 | 10486 | table_name, devlink); |
1555d204 | 10487 | if (!table) |
70a2ff89 | 10488 | return; |
1555d204 | 10489 | list_del_rcu(&table->list); |
1555d204 | 10490 | kfree_rcu(table, rcu); |
70a2ff89 JP |
10491 | } |
10492 | EXPORT_SYMBOL_GPL(devl_dpipe_table_unregister); | |
10493 | ||
d9f9b9a4 | 10494 | /** |
c223d6a4 | 10495 | * devl_resource_register - devlink resource register |
d9f9b9a4 | 10496 | * |
c223d6a4 JP |
10497 | * @devlink: devlink |
10498 | * @resource_name: resource's name | |
10499 | * @resource_size: resource's size | |
10500 | * @resource_id: resource's id | |
10501 | * @parent_resource_id: resource's parent id | |
10502 | * @size_params: size parameters | |
321f7ab0 | 10503 | * |
c223d6a4 JP |
10504 | * Generic resources should reuse the same names across drivers. |
10505 | * Please see the generic resources list at: | |
10506 | * Documentation/networking/devlink/devlink-resource.rst | |
d9f9b9a4 | 10507 | */ |
c223d6a4 JP |
10508 | int devl_resource_register(struct devlink *devlink, |
10509 | const char *resource_name, | |
10510 | u64 resource_size, | |
10511 | u64 resource_id, | |
10512 | u64 parent_resource_id, | |
10513 | const struct devlink_resource_size_params *size_params) | |
d9f9b9a4 AS |
10514 | { |
10515 | struct devlink_resource *resource; | |
10516 | struct list_head *resource_list; | |
14530746 | 10517 | bool top_hierarchy; |
c223d6a4 JP |
10518 | |
10519 | lockdep_assert_held(&devlink->lock); | |
d9f9b9a4 | 10520 | |
14530746 DA |
10521 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
10522 | ||
d9f9b9a4 | 10523 | resource = devlink_resource_find(devlink, NULL, resource_id); |
c223d6a4 JP |
10524 | if (resource) |
10525 | return -EINVAL; | |
d9f9b9a4 AS |
10526 | |
10527 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
c223d6a4 JP |
10528 | if (!resource) |
10529 | return -ENOMEM; | |
d9f9b9a4 AS |
10530 | |
10531 | if (top_hierarchy) { | |
10532 | resource_list = &devlink->resource_list; | |
10533 | } else { | |
10534 | struct devlink_resource *parent_resource; | |
10535 | ||
10536 | parent_resource = devlink_resource_find(devlink, NULL, | |
10537 | parent_resource_id); | |
10538 | if (parent_resource) { | |
10539 | resource_list = &parent_resource->resource_list; | |
10540 | resource->parent = parent_resource; | |
10541 | } else { | |
b75703de | 10542 | kfree(resource); |
c223d6a4 | 10543 | return -EINVAL; |
d9f9b9a4 AS |
10544 | } |
10545 | } | |
10546 | ||
10547 | resource->name = resource_name; | |
10548 | resource->size = resource_size; | |
10549 | resource->size_new = resource_size; | |
10550 | resource->id = resource_id; | |
d9f9b9a4 | 10551 | resource->size_valid = true; |
77d27096 JP |
10552 | memcpy(&resource->size_params, size_params, |
10553 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
10554 | INIT_LIST_HEAD(&resource->resource_list); |
10555 | list_add_tail(&resource->list, resource_list); | |
c223d6a4 JP |
10556 | |
10557 | return 0; | |
10558 | } | |
10559 | EXPORT_SYMBOL_GPL(devl_resource_register); | |
10560 | ||
10561 | /** | |
10562 | * devlink_resource_register - devlink resource register | |
10563 | * | |
10564 | * @devlink: devlink | |
10565 | * @resource_name: resource's name | |
10566 | * @resource_size: resource's size | |
10567 | * @resource_id: resource's id | |
10568 | * @parent_resource_id: resource's parent id | |
10569 | * @size_params: size parameters | |
10570 | * | |
10571 | * Generic resources should reuse the same names across drivers. | |
10572 | * Please see the generic resources list at: | |
10573 | * Documentation/networking/devlink/devlink-resource.rst | |
10574 | * | |
10575 | * Context: Takes and release devlink->lock <mutex>. | |
10576 | */ | |
10577 | int devlink_resource_register(struct devlink *devlink, | |
10578 | const char *resource_name, | |
10579 | u64 resource_size, | |
10580 | u64 resource_id, | |
10581 | u64 parent_resource_id, | |
10582 | const struct devlink_resource_size_params *size_params) | |
10583 | { | |
10584 | int err; | |
10585 | ||
10586 | devl_lock(devlink); | |
10587 | err = devl_resource_register(devlink, resource_name, resource_size, | |
10588 | resource_id, parent_resource_id, size_params); | |
7715023a | 10589 | devl_unlock(devlink); |
d9f9b9a4 AS |
10590 | return err; |
10591 | } | |
10592 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
10593 | ||
4c897cfc LR |
10594 | static void devlink_resource_unregister(struct devlink *devlink, |
10595 | struct devlink_resource *resource) | |
10596 | { | |
10597 | struct devlink_resource *tmp, *child_resource; | |
10598 | ||
10599 | list_for_each_entry_safe(child_resource, tmp, &resource->resource_list, | |
10600 | list) { | |
10601 | devlink_resource_unregister(devlink, child_resource); | |
10602 | list_del(&child_resource->list); | |
10603 | kfree(child_resource); | |
10604 | } | |
10605 | } | |
10606 | ||
d9f9b9a4 | 10607 | /** |
c223d6a4 | 10608 | * devl_resources_unregister - free all resources |
d9f9b9a4 | 10609 | * |
c223d6a4 | 10610 | * @devlink: devlink |
d9f9b9a4 | 10611 | */ |
c223d6a4 | 10612 | void devl_resources_unregister(struct devlink *devlink) |
d9f9b9a4 AS |
10613 | { |
10614 | struct devlink_resource *tmp, *child_resource; | |
d9f9b9a4 | 10615 | |
c223d6a4 | 10616 | lockdep_assert_held(&devlink->lock); |
d9f9b9a4 | 10617 | |
4c897cfc LR |
10618 | list_for_each_entry_safe(child_resource, tmp, &devlink->resource_list, |
10619 | list) { | |
10620 | devlink_resource_unregister(devlink, child_resource); | |
d9f9b9a4 AS |
10621 | list_del(&child_resource->list); |
10622 | kfree(child_resource); | |
10623 | } | |
c223d6a4 JP |
10624 | } |
10625 | EXPORT_SYMBOL_GPL(devl_resources_unregister); | |
d9f9b9a4 | 10626 | |
c223d6a4 JP |
10627 | /** |
10628 | * devlink_resources_unregister - free all resources | |
10629 | * | |
10630 | * @devlink: devlink | |
10631 | * | |
10632 | * Context: Takes and release devlink->lock <mutex>. | |
10633 | */ | |
10634 | void devlink_resources_unregister(struct devlink *devlink) | |
10635 | { | |
10636 | devl_lock(devlink); | |
10637 | devl_resources_unregister(devlink); | |
7715023a | 10638 | devl_unlock(devlink); |
d9f9b9a4 AS |
10639 | } |
10640 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
10641 | ||
c223d6a4 JP |
10642 | /** |
10643 | * devl_resource_size_get - get and update size | |
10644 | * | |
10645 | * @devlink: devlink | |
10646 | * @resource_id: the requested resource id | |
10647 | * @p_resource_size: ptr to update | |
10648 | */ | |
10649 | int devl_resource_size_get(struct devlink *devlink, | |
10650 | u64 resource_id, | |
10651 | u64 *p_resource_size) | |
10652 | { | |
10653 | struct devlink_resource *resource; | |
10654 | ||
10655 | lockdep_assert_held(&devlink->lock); | |
10656 | ||
10657 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
10658 | if (!resource) | |
10659 | return -EINVAL; | |
10660 | *p_resource_size = resource->size_new; | |
10661 | resource->size = resource->size_new; | |
10662 | return 0; | |
10663 | } | |
10664 | EXPORT_SYMBOL_GPL(devl_resource_size_get); | |
10665 | ||
70a2ff89 JP |
10666 | /** |
10667 | * devl_dpipe_table_resource_set - set the resource id | |
10668 | * | |
10669 | * @devlink: devlink | |
10670 | * @table_name: table name | |
10671 | * @resource_id: resource id | |
10672 | * @resource_units: number of resource's units consumed per table's entry | |
10673 | */ | |
10674 | int devl_dpipe_table_resource_set(struct devlink *devlink, | |
10675 | const char *table_name, u64 resource_id, | |
10676 | u64 resource_units) | |
10677 | { | |
10678 | struct devlink_dpipe_table *table; | |
10679 | ||
10680 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
10681 | table_name, devlink); | |
10682 | if (!table) | |
10683 | return -EINVAL; | |
10684 | ||
10685 | table->resource_id = resource_id; | |
10686 | table->resource_units = resource_units; | |
10687 | table->resource_valid = true; | |
10688 | return 0; | |
10689 | } | |
10690 | EXPORT_SYMBOL_GPL(devl_dpipe_table_resource_set); | |
10691 | ||
c223d6a4 JP |
10692 | /** |
10693 | * devl_resource_occ_get_register - register occupancy getter | |
10694 | * | |
10695 | * @devlink: devlink | |
10696 | * @resource_id: resource id | |
10697 | * @occ_get: occupancy getter callback | |
10698 | * @occ_get_priv: occupancy getter callback priv | |
10699 | */ | |
10700 | void devl_resource_occ_get_register(struct devlink *devlink, | |
10701 | u64 resource_id, | |
10702 | devlink_resource_occ_get_t *occ_get, | |
10703 | void *occ_get_priv) | |
10704 | { | |
10705 | struct devlink_resource *resource; | |
10706 | ||
10707 | lockdep_assert_held(&devlink->lock); | |
10708 | ||
10709 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
10710 | if (WARN_ON(!resource)) | |
10711 | return; | |
10712 | WARN_ON(resource->occ_get); | |
10713 | ||
10714 | resource->occ_get = occ_get; | |
10715 | resource->occ_get_priv = occ_get_priv; | |
10716 | } | |
10717 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_register); | |
10718 | ||
fc56be47 JP |
10719 | /** |
10720 | * devlink_resource_occ_get_register - register occupancy getter | |
10721 | * | |
10722 | * @devlink: devlink | |
10723 | * @resource_id: resource id | |
10724 | * @occ_get: occupancy getter callback | |
10725 | * @occ_get_priv: occupancy getter callback priv | |
c223d6a4 JP |
10726 | * |
10727 | * Context: Takes and release devlink->lock <mutex>. | |
fc56be47 JP |
10728 | */ |
10729 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
10730 | u64 resource_id, | |
10731 | devlink_resource_occ_get_t *occ_get, | |
10732 | void *occ_get_priv) | |
10733 | { | |
7715023a | 10734 | devl_lock(devlink); |
c223d6a4 JP |
10735 | devl_resource_occ_get_register(devlink, resource_id, |
10736 | occ_get, occ_get_priv); | |
7715023a | 10737 | devl_unlock(devlink); |
fc56be47 JP |
10738 | } |
10739 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
10740 | ||
10741 | /** | |
c223d6a4 | 10742 | * devl_resource_occ_get_unregister - unregister occupancy getter |
fc56be47 | 10743 | * |
c223d6a4 JP |
10744 | * @devlink: devlink |
10745 | * @resource_id: resource id | |
fc56be47 | 10746 | */ |
c223d6a4 JP |
10747 | void devl_resource_occ_get_unregister(struct devlink *devlink, |
10748 | u64 resource_id) | |
fc56be47 JP |
10749 | { |
10750 | struct devlink_resource *resource; | |
10751 | ||
c223d6a4 JP |
10752 | lockdep_assert_held(&devlink->lock); |
10753 | ||
fc56be47 JP |
10754 | resource = devlink_resource_find(devlink, NULL, resource_id); |
10755 | if (WARN_ON(!resource)) | |
c223d6a4 | 10756 | return; |
fc56be47 JP |
10757 | WARN_ON(!resource->occ_get); |
10758 | ||
10759 | resource->occ_get = NULL; | |
10760 | resource->occ_get_priv = NULL; | |
c223d6a4 JP |
10761 | } |
10762 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_unregister); | |
10763 | ||
10764 | /** | |
10765 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
10766 | * | |
10767 | * @devlink: devlink | |
10768 | * @resource_id: resource id | |
10769 | * | |
10770 | * Context: Takes and release devlink->lock <mutex>. | |
10771 | */ | |
10772 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
10773 | u64 resource_id) | |
10774 | { | |
10775 | devl_lock(devlink); | |
10776 | devl_resource_occ_get_unregister(devlink, resource_id); | |
7715023a | 10777 | devl_unlock(devlink); |
fc56be47 JP |
10778 | } |
10779 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
10780 | ||
39e6160e VV |
10781 | static int devlink_param_verify(const struct devlink_param *param) |
10782 | { | |
10783 | if (!param || !param->name || !param->supported_cmodes) | |
10784 | return -EINVAL; | |
10785 | if (param->generic) | |
10786 | return devlink_param_generic_verify(param); | |
10787 | else | |
10788 | return devlink_param_driver_verify(param); | |
10789 | } | |
10790 | ||
020dd127 JP |
10791 | static int devlink_param_register(struct devlink *devlink, |
10792 | const struct devlink_param *param) | |
10793 | { | |
10794 | struct devlink_param_item *param_item; | |
10795 | ||
10796 | WARN_ON(devlink_param_verify(param)); | |
10797 | WARN_ON(devlink_param_find_by_name(&devlink->param_list, param->name)); | |
10798 | ||
10799 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
10800 | WARN_ON(param->get || param->set); | |
10801 | else | |
10802 | WARN_ON(!param->get || !param->set); | |
10803 | ||
10804 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
10805 | if (!param_item) | |
10806 | return -ENOMEM; | |
10807 | ||
10808 | param_item->param = param; | |
10809 | ||
10810 | list_add_tail(¶m_item->list, &devlink->param_list); | |
10811 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); | |
10812 | return 0; | |
10813 | } | |
10814 | ||
10815 | static void devlink_param_unregister(struct devlink *devlink, | |
10816 | const struct devlink_param *param) | |
10817 | { | |
10818 | struct devlink_param_item *param_item; | |
10819 | ||
10820 | param_item = | |
10821 | devlink_param_find_by_name(&devlink->param_list, param->name); | |
bb9bb6bf JP |
10822 | if (WARN_ON(!param_item)) |
10823 | return; | |
020dd127 JP |
10824 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_DEL); |
10825 | list_del(¶m_item->list); | |
10826 | kfree(param_item); | |
10827 | } | |
10828 | ||
39e6160e | 10829 | /** |
075935f0 | 10830 | * devl_params_register - register configuration parameters |
39e6160e VV |
10831 | * |
10832 | * @devlink: devlink | |
10833 | * @params: configuration parameters array | |
10834 | * @params_count: number of parameters provided | |
10835 | * | |
10836 | * Register the configuration parameters supported by the driver. | |
10837 | */ | |
075935f0 JP |
10838 | int devl_params_register(struct devlink *devlink, |
10839 | const struct devlink_param *params, | |
10840 | size_t params_count) | |
39e6160e | 10841 | { |
ee775b56 LR |
10842 | const struct devlink_param *param = params; |
10843 | int i, err; | |
10844 | ||
075935f0 JP |
10845 | lockdep_assert_held(&devlink->lock); |
10846 | ||
ee775b56 LR |
10847 | for (i = 0; i < params_count; i++, param++) { |
10848 | err = devlink_param_register(devlink, param); | |
10849 | if (err) | |
10850 | goto rollback; | |
10851 | } | |
10852 | return 0; | |
10853 | ||
10854 | rollback: | |
10855 | if (!i) | |
10856 | return err; | |
10857 | ||
10858 | for (param--; i > 0; i--, param--) | |
10859 | devlink_param_unregister(devlink, param); | |
10860 | return err; | |
39e6160e | 10861 | } |
075935f0 JP |
10862 | EXPORT_SYMBOL_GPL(devl_params_register); |
10863 | ||
10864 | int devlink_params_register(struct devlink *devlink, | |
10865 | const struct devlink_param *params, | |
10866 | size_t params_count) | |
10867 | { | |
10868 | int err; | |
10869 | ||
10870 | devl_lock(devlink); | |
10871 | err = devl_params_register(devlink, params, params_count); | |
10872 | devl_unlock(devlink); | |
10873 | return err; | |
10874 | } | |
eabaef18 MS |
10875 | EXPORT_SYMBOL_GPL(devlink_params_register); |
10876 | ||
10877 | /** | |
075935f0 | 10878 | * devl_params_unregister - unregister configuration parameters |
eabaef18 MS |
10879 | * @devlink: devlink |
10880 | * @params: configuration parameters to unregister | |
10881 | * @params_count: number of parameters provided | |
10882 | */ | |
075935f0 JP |
10883 | void devl_params_unregister(struct devlink *devlink, |
10884 | const struct devlink_param *params, | |
10885 | size_t params_count) | |
eabaef18 | 10886 | { |
ee775b56 LR |
10887 | const struct devlink_param *param = params; |
10888 | int i; | |
10889 | ||
075935f0 JP |
10890 | lockdep_assert_held(&devlink->lock); |
10891 | ||
ee775b56 LR |
10892 | for (i = 0; i < params_count; i++, param++) |
10893 | devlink_param_unregister(devlink, param); | |
eabaef18 | 10894 | } |
075935f0 JP |
10895 | EXPORT_SYMBOL_GPL(devl_params_unregister); |
10896 | ||
10897 | void devlink_params_unregister(struct devlink *devlink, | |
10898 | const struct devlink_param *params, | |
10899 | size_t params_count) | |
10900 | { | |
10901 | devl_lock(devlink); | |
10902 | devl_params_unregister(devlink, params, params_count); | |
10903 | devl_unlock(devlink); | |
10904 | } | |
eabaef18 MS |
10905 | EXPORT_SYMBOL_GPL(devlink_params_unregister); |
10906 | ||
8ba024df | 10907 | /** |
075935f0 JP |
10908 | * devl_param_driverinit_value_get - get configuration parameter |
10909 | * value for driver initializing | |
8ba024df LR |
10910 | * |
10911 | * @devlink: devlink | |
10912 | * @param_id: parameter ID | |
10913 | * @init_val: value of parameter in driverinit configuration mode | |
10914 | * | |
10915 | * This function should be used by the driver to get driverinit | |
10916 | * configuration for initialization after reload command. | |
10917 | */ | |
075935f0 JP |
10918 | int devl_param_driverinit_value_get(struct devlink *devlink, u32 param_id, |
10919 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
10920 | { |
10921 | struct devlink_param_item *param_item; | |
10922 | ||
075935f0 JP |
10923 | lockdep_assert_held(&devlink->lock); |
10924 | ||
3f716a62 | 10925 | if (WARN_ON(!devlink_reload_supported(devlink->ops))) |
8ba024df LR |
10926 | return -EOPNOTSUPP; |
10927 | ||
10928 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
ec01aeb1 MS |
10929 | if (!param_item) |
10930 | return -EINVAL; | |
10931 | ||
3f716a62 JP |
10932 | if (!param_item->driverinit_value_valid) |
10933 | return -EOPNOTSUPP; | |
10934 | ||
10935 | if (WARN_ON(!devlink_param_cmode_is_supported(param_item->param, | |
10936 | DEVLINK_PARAM_CMODE_DRIVERINIT))) | |
ec01aeb1 MS |
10937 | return -EOPNOTSUPP; |
10938 | ||
1276534c MS |
10939 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
10940 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
10941 | else | |
10942 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
10943 | |
10944 | return 0; | |
10945 | } | |
075935f0 | 10946 | EXPORT_SYMBOL_GPL(devl_param_driverinit_value_get); |
ffd19b9a | 10947 | |
8ba024df | 10948 | /** |
075935f0 JP |
10949 | * devl_param_driverinit_value_set - set value of configuration |
10950 | * parameter for driverinit | |
10951 | * configuration mode | |
8ba024df LR |
10952 | * |
10953 | * @devlink: devlink | |
10954 | * @param_id: parameter ID | |
10955 | * @init_val: value of parameter to set for driverinit configuration mode | |
10956 | * | |
10957 | * This function should be used by the driver to set driverinit | |
10958 | * configuration mode default value. | |
10959 | */ | |
075935f0 JP |
10960 | void devl_param_driverinit_value_set(struct devlink *devlink, u32 param_id, |
10961 | union devlink_param_value init_val) | |
5473a7bd VV |
10962 | { |
10963 | struct devlink_param_item *param_item; | |
10964 | ||
8ba024df | 10965 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); |
85fe0b32 JP |
10966 | if (WARN_ON(!param_item)) |
10967 | return; | |
5473a7bd | 10968 | |
85fe0b32 JP |
10969 | if (WARN_ON(!devlink_param_cmode_is_supported(param_item->param, |
10970 | DEVLINK_PARAM_CMODE_DRIVERINIT))) | |
10971 | return; | |
5473a7bd VV |
10972 | |
10973 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
10974 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
10975 | else | |
10976 | param_item->driverinit_value = init_val; | |
10977 | param_item->driverinit_value_valid = true; | |
1d18bb1a JK |
10978 | |
10979 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); | |
5473a7bd | 10980 | } |
075935f0 | 10981 | EXPORT_SYMBOL_GPL(devl_param_driverinit_value_set); |
ec01aeb1 | 10982 | |
ea601e17 | 10983 | /** |
075935f0 JP |
10984 | * devl_param_value_changed - notify devlink on a parameter's value |
10985 | * change. Should be called by the driver | |
10986 | * right after the change. | |
ea601e17 MS |
10987 | * |
10988 | * @devlink: devlink | |
10989 | * @param_id: parameter ID | |
10990 | * | |
10991 | * This function should be used by the driver to notify devlink on value | |
10992 | * change, excluding driverinit configuration mode. | |
10993 | * For driverinit configuration mode driver should use the function | |
ea601e17 | 10994 | */ |
075935f0 | 10995 | void devl_param_value_changed(struct devlink *devlink, u32 param_id) |
ea601e17 MS |
10996 | { |
10997 | struct devlink_param_item *param_item; | |
10998 | ||
10999 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
11000 | WARN_ON(!param_item); | |
11001 | ||
c1e5786d | 11002 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 | 11003 | } |
075935f0 | 11004 | EXPORT_SYMBOL_GPL(devl_param_value_changed); |
ea601e17 | 11005 | |
b16ebe92 | 11006 | /** |
eb0e9fa2 | 11007 | * devl_region_create - create a new address region |
b16ebe92 | 11008 | * |
eb0e9fa2 JP |
11009 | * @devlink: devlink |
11010 | * @ops: region operations and name | |
11011 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11012 | * @region_size: size of region | |
b16ebe92 | 11013 | */ |
eb0e9fa2 JP |
11014 | struct devlink_region *devl_region_create(struct devlink *devlink, |
11015 | const struct devlink_region_ops *ops, | |
11016 | u32 region_max_snapshots, | |
11017 | u64 region_size) | |
b16ebe92 AV |
11018 | { |
11019 | struct devlink_region *region; | |
eb0e9fa2 JP |
11020 | |
11021 | devl_assert_locked(devlink); | |
b16ebe92 | 11022 | |
a0a09f6b JK |
11023 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11024 | return ERR_PTR(-EINVAL); | |
11025 | ||
eb0e9fa2 JP |
11026 | if (devlink_region_get_by_name(devlink, ops->name)) |
11027 | return ERR_PTR(-EEXIST); | |
b16ebe92 AV |
11028 | |
11029 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
eb0e9fa2 JP |
11030 | if (!region) |
11031 | return ERR_PTR(-ENOMEM); | |
b16ebe92 AV |
11032 | |
11033 | region->devlink = devlink; | |
11034 | region->max_snapshots = region_max_snapshots; | |
e8937681 | 11035 | region->ops = ops; |
b16ebe92 AV |
11036 | region->size = region_size; |
11037 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11038 | mutex_init(®ion->snapshot_lock); |
b16ebe92 | 11039 | list_add_tail(®ion->list, &devlink->region_list); |
866319bb | 11040 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 | 11041 | |
b16ebe92 | 11042 | return region; |
eb0e9fa2 JP |
11043 | } |
11044 | EXPORT_SYMBOL_GPL(devl_region_create); | |
b16ebe92 | 11045 | |
eb0e9fa2 JP |
11046 | /** |
11047 | * devlink_region_create - create a new address region | |
11048 | * | |
11049 | * @devlink: devlink | |
11050 | * @ops: region operations and name | |
11051 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11052 | * @region_size: size of region | |
11053 | * | |
11054 | * Context: Takes and release devlink->lock <mutex>. | |
11055 | */ | |
11056 | struct devlink_region * | |
11057 | devlink_region_create(struct devlink *devlink, | |
11058 | const struct devlink_region_ops *ops, | |
11059 | u32 region_max_snapshots, u64 region_size) | |
11060 | { | |
11061 | struct devlink_region *region; | |
11062 | ||
11063 | devl_lock(devlink); | |
11064 | region = devl_region_create(devlink, ops, region_max_snapshots, | |
11065 | region_size); | |
7715023a | 11066 | devl_unlock(devlink); |
eb0e9fa2 | 11067 | return region; |
b16ebe92 AV |
11068 | } |
11069 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
11070 | ||
544e7c33 AL |
11071 | /** |
11072 | * devlink_port_region_create - create a new address region for a port | |
11073 | * | |
11074 | * @port: devlink port | |
11075 | * @ops: region operations and name | |
11076 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11077 | * @region_size: size of region | |
eb0e9fa2 JP |
11078 | * |
11079 | * Context: Takes and release devlink->lock <mutex>. | |
544e7c33 AL |
11080 | */ |
11081 | struct devlink_region * | |
11082 | devlink_port_region_create(struct devlink_port *port, | |
11083 | const struct devlink_port_region_ops *ops, | |
11084 | u32 region_max_snapshots, u64 region_size) | |
11085 | { | |
11086 | struct devlink *devlink = port->devlink; | |
11087 | struct devlink_region *region; | |
11088 | int err = 0; | |
11089 | ||
ae3bbc04 JP |
11090 | ASSERT_DEVLINK_PORT_INITIALIZED(port); |
11091 | ||
544e7c33 AL |
11092 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11093 | return ERR_PTR(-EINVAL); | |
11094 | ||
7715023a | 11095 | devl_lock(devlink); |
544e7c33 AL |
11096 | |
11097 | if (devlink_port_region_get_by_name(port, ops->name)) { | |
11098 | err = -EEXIST; | |
11099 | goto unlock; | |
11100 | } | |
11101 | ||
11102 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
11103 | if (!region) { | |
11104 | err = -ENOMEM; | |
11105 | goto unlock; | |
11106 | } | |
11107 | ||
11108 | region->devlink = devlink; | |
11109 | region->port = port; | |
11110 | region->max_snapshots = region_max_snapshots; | |
11111 | region->port_ops = ops; | |
11112 | region->size = region_size; | |
11113 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11114 | mutex_init(®ion->snapshot_lock); |
544e7c33 AL |
11115 | list_add_tail(®ion->list, &port->region_list); |
11116 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
11117 | ||
7715023a | 11118 | devl_unlock(devlink); |
544e7c33 AL |
11119 | return region; |
11120 | ||
11121 | unlock: | |
7715023a | 11122 | devl_unlock(devlink); |
544e7c33 AL |
11123 | return ERR_PTR(err); |
11124 | } | |
11125 | EXPORT_SYMBOL_GPL(devlink_port_region_create); | |
11126 | ||
b16ebe92 | 11127 | /** |
eb0e9fa2 | 11128 | * devl_region_destroy - destroy address region |
b16ebe92 | 11129 | * |
eb0e9fa2 | 11130 | * @region: devlink region to destroy |
b16ebe92 | 11131 | */ |
eb0e9fa2 | 11132 | void devl_region_destroy(struct devlink_region *region) |
b16ebe92 AV |
11133 | { |
11134 | struct devlink *devlink = region->devlink; | |
d7e52722 | 11135 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 | 11136 | |
eb0e9fa2 | 11137 | devl_assert_locked(devlink); |
d7e52722 AV |
11138 | |
11139 | /* Free all snapshots of region */ | |
b4cafb3d | 11140 | mutex_lock(®ion->snapshot_lock); |
d7e52722 | 11141 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) |
92b49822 | 11142 | devlink_region_snapshot_del(region, snapshot); |
b4cafb3d | 11143 | mutex_unlock(®ion->snapshot_lock); |
d7e52722 | 11144 | |
b16ebe92 | 11145 | list_del(®ion->list); |
2dec18ad | 11146 | mutex_destroy(®ion->snapshot_lock); |
866319bb AV |
11147 | |
11148 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
11149 | kfree(region); |
11150 | } | |
eb0e9fa2 JP |
11151 | EXPORT_SYMBOL_GPL(devl_region_destroy); |
11152 | ||
11153 | /** | |
11154 | * devlink_region_destroy - destroy address region | |
11155 | * | |
11156 | * @region: devlink region to destroy | |
11157 | * | |
11158 | * Context: Takes and release devlink->lock <mutex>. | |
11159 | */ | |
11160 | void devlink_region_destroy(struct devlink_region *region) | |
11161 | { | |
11162 | struct devlink *devlink = region->devlink; | |
11163 | ||
11164 | devl_lock(devlink); | |
11165 | devl_region_destroy(region); | |
11166 | devl_unlock(devlink); | |
11167 | } | |
b16ebe92 AV |
11168 | EXPORT_SYMBOL_GPL(devlink_region_destroy); |
11169 | ||
ccadfa44 | 11170 | /** |
b0efcae5 | 11171 | * devlink_region_snapshot_id_get - get snapshot ID |
ccadfa44 AV |
11172 | * |
11173 | * This callback should be called when adding a new snapshot, | |
11174 | * Driver should use the same id for multiple snapshots taken | |
11175 | * on multiple regions at the same time/by the same trigger. | |
11176 | * | |
12102436 JK |
11177 | * The caller of this function must use devlink_region_snapshot_id_put |
11178 | * when finished creating regions using this id. | |
11179 | * | |
7ef19d3b JK |
11180 | * Returns zero on success, or a negative error code on failure. |
11181 | * | |
ccadfa44 | 11182 | * @devlink: devlink |
7ef19d3b | 11183 | * @id: storage to return id |
ccadfa44 | 11184 | */ |
7ef19d3b | 11185 | int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
ccadfa44 | 11186 | { |
5502e871 | 11187 | return __devlink_region_snapshot_id_get(devlink, id); |
ccadfa44 | 11188 | } |
b0efcae5 | 11189 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get); |
ccadfa44 | 11190 | |
12102436 JK |
11191 | /** |
11192 | * devlink_region_snapshot_id_put - put snapshot ID reference | |
11193 | * | |
11194 | * This should be called by a driver after finishing creating snapshots | |
11195 | * with an id. Doing so ensures that the ID can later be released in the | |
11196 | * event that all snapshots using it have been destroyed. | |
11197 | * | |
11198 | * @devlink: devlink | |
11199 | * @id: id to release reference on | |
11200 | */ | |
11201 | void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id) | |
11202 | { | |
12102436 | 11203 | __devlink_snapshot_id_decrement(devlink, id); |
12102436 JK |
11204 | } |
11205 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_put); | |
11206 | ||
d7e52722 AV |
11207 | /** |
11208 | * devlink_region_snapshot_create - create a new snapshot | |
11209 | * This will add a new snapshot of a region. The snapshot | |
11210 | * will be stored on the region struct and can be accessed | |
6d82f67e | 11211 | * from devlink. This is useful for future analyses of snapshots. |
d7e52722 AV |
11212 | * Multiple snapshots can be created on a region. |
11213 | * The @snapshot_id should be obtained using the getter function. | |
11214 | * | |
eeaadd82 | 11215 | * @region: devlink region of the snapshot |
d7e52722 AV |
11216 | * @data: snapshot data |
11217 | * @snapshot_id: snapshot id to be created | |
d7e52722 | 11218 | */ |
3a5e5234 | 11219 | int devlink_region_snapshot_create(struct devlink_region *region, |
a0a09f6b | 11220 | u8 *data, u32 snapshot_id) |
d7e52722 | 11221 | { |
d7e52722 AV |
11222 | int err; |
11223 | ||
2dec18ad | 11224 | mutex_lock(®ion->snapshot_lock); |
cf80faee | 11225 | err = __devlink_region_snapshot_create(region, data, snapshot_id); |
2dec18ad | 11226 | mutex_unlock(®ion->snapshot_lock); |
d7e52722 AV |
11227 | return err; |
11228 | } | |
11229 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
11230 | ||
0f420b6c IS |
11231 | #define DEVLINK_TRAP(_id, _type) \ |
11232 | { \ | |
11233 | .type = DEVLINK_TRAP_TYPE_##_type, \ | |
11234 | .id = DEVLINK_TRAP_GENERIC_ID_##_id, \ | |
11235 | .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \ | |
11236 | } | |
11237 | ||
11238 | static const struct devlink_trap devlink_trap_generic[] = { | |
391203ab IS |
11239 | DEVLINK_TRAP(SMAC_MC, DROP), |
11240 | DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP), | |
11241 | DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP), | |
11242 | DEVLINK_TRAP(INGRESS_STP_FILTER, DROP), | |
11243 | DEVLINK_TRAP(EMPTY_TX_LIST, DROP), | |
11244 | DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP), | |
11245 | DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP), | |
11246 | DEVLINK_TRAP(TTL_ERROR, EXCEPTION), | |
11247 | DEVLINK_TRAP(TAIL_DROP, DROP), | |
6896cc4d AC |
11248 | DEVLINK_TRAP(NON_IP_PACKET, DROP), |
11249 | DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP), | |
11250 | DEVLINK_TRAP(DIP_LB, DROP), | |
11251 | DEVLINK_TRAP(SIP_MC, DROP), | |
11252 | DEVLINK_TRAP(SIP_LB, DROP), | |
11253 | DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP), | |
11254 | DEVLINK_TRAP(IPV4_SIP_BC, DROP), | |
11255 | DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP), | |
11256 | DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP), | |
3b063ae5 AC |
11257 | DEVLINK_TRAP(MTU_ERROR, EXCEPTION), |
11258 | DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION), | |
11259 | DEVLINK_TRAP(RPF, EXCEPTION), | |
11260 | DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), | |
11261 | DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), | |
11262 | DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), | |
95f0ead8 | 11263 | DEVLINK_TRAP(NON_ROUTABLE, DROP), |
13c056ec | 11264 | DEVLINK_TRAP(DECAP_ERROR, EXCEPTION), |
c3cae491 | 11265 | DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP), |
ecd942a0 JP |
11266 | DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP), |
11267 | DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP), | |
515eac67 IS |
11268 | DEVLINK_TRAP(STP, CONTROL), |
11269 | DEVLINK_TRAP(LACP, CONTROL), | |
11270 | DEVLINK_TRAP(LLDP, CONTROL), | |
11271 | DEVLINK_TRAP(IGMP_QUERY, CONTROL), | |
11272 | DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL), | |
11273 | DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL), | |
11274 | DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL), | |
11275 | DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL), | |
11276 | DEVLINK_TRAP(MLD_QUERY, CONTROL), | |
11277 | DEVLINK_TRAP(MLD_V1_REPORT, CONTROL), | |
11278 | DEVLINK_TRAP(MLD_V2_REPORT, CONTROL), | |
11279 | DEVLINK_TRAP(MLD_V1_DONE, CONTROL), | |
d77cfd16 IS |
11280 | DEVLINK_TRAP(IPV4_DHCP, CONTROL), |
11281 | DEVLINK_TRAP(IPV6_DHCP, CONTROL), | |
11282 | DEVLINK_TRAP(ARP_REQUEST, CONTROL), | |
11283 | DEVLINK_TRAP(ARP_RESPONSE, CONTROL), | |
11284 | DEVLINK_TRAP(ARP_OVERLAY, CONTROL), | |
11285 | DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL), | |
11286 | DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL), | |
11287 | DEVLINK_TRAP(IPV4_BFD, CONTROL), | |
11288 | DEVLINK_TRAP(IPV6_BFD, CONTROL), | |
11289 | DEVLINK_TRAP(IPV4_OSPF, CONTROL), | |
11290 | DEVLINK_TRAP(IPV6_OSPF, CONTROL), | |
11291 | DEVLINK_TRAP(IPV4_BGP, CONTROL), | |
11292 | DEVLINK_TRAP(IPV6_BGP, CONTROL), | |
11293 | DEVLINK_TRAP(IPV4_VRRP, CONTROL), | |
11294 | DEVLINK_TRAP(IPV6_VRRP, CONTROL), | |
11295 | DEVLINK_TRAP(IPV4_PIM, CONTROL), | |
11296 | DEVLINK_TRAP(IPV6_PIM, CONTROL), | |
11297 | DEVLINK_TRAP(UC_LB, CONTROL), | |
11298 | DEVLINK_TRAP(LOCAL_ROUTE, CONTROL), | |
11299 | DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL), | |
11300 | DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL), | |
11301 | DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL), | |
11302 | DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL), | |
11303 | DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL), | |
11304 | DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL), | |
11305 | DEVLINK_TRAP(IPV6_REDIRECT, CONTROL), | |
11306 | DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL), | |
11307 | DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL), | |
11308 | DEVLINK_TRAP(PTP_EVENT, CONTROL), | |
11309 | DEVLINK_TRAP(PTP_GENERAL, CONTROL), | |
5eb18a2b IS |
11310 | DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL), |
11311 | DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL), | |
08e335f6 | 11312 | DEVLINK_TRAP(EARLY_DROP, DROP), |
10c24eb2 IC |
11313 | DEVLINK_TRAP(VXLAN_PARSING, DROP), |
11314 | DEVLINK_TRAP(LLC_SNAP_PARSING, DROP), | |
11315 | DEVLINK_TRAP(VLAN_PARSING, DROP), | |
11316 | DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP), | |
11317 | DEVLINK_TRAP(MPLS_PARSING, DROP), | |
11318 | DEVLINK_TRAP(ARP_PARSING, DROP), | |
11319 | DEVLINK_TRAP(IP_1_PARSING, DROP), | |
11320 | DEVLINK_TRAP(IP_N_PARSING, DROP), | |
11321 | DEVLINK_TRAP(GRE_PARSING, DROP), | |
11322 | DEVLINK_TRAP(UDP_PARSING, DROP), | |
11323 | DEVLINK_TRAP(TCP_PARSING, DROP), | |
11324 | DEVLINK_TRAP(IPSEC_PARSING, DROP), | |
11325 | DEVLINK_TRAP(SCTP_PARSING, DROP), | |
11326 | DEVLINK_TRAP(DCCP_PARSING, DROP), | |
11327 | DEVLINK_TRAP(GTP_PARSING, DROP), | |
11328 | DEVLINK_TRAP(ESP_PARSING, DROP), | |
f0a5013e | 11329 | DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP), |
e78ab164 | 11330 | DEVLINK_TRAP(DMAC_FILTER, DROP), |
2640a82b IS |
11331 | DEVLINK_TRAP(EAPOL, CONTROL), |
11332 | DEVLINK_TRAP(LOCKED_PORT, DROP), | |
0f420b6c IS |
11333 | }; |
11334 | ||
11335 | #define DEVLINK_TRAP_GROUP(_id) \ | |
11336 | { \ | |
11337 | .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \ | |
11338 | .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \ | |
11339 | } | |
11340 | ||
11341 | static const struct devlink_trap_group devlink_trap_group_generic[] = { | |
391203ab IS |
11342 | DEVLINK_TRAP_GROUP(L2_DROPS), |
11343 | DEVLINK_TRAP_GROUP(L3_DROPS), | |
678eb199 | 11344 | DEVLINK_TRAP_GROUP(L3_EXCEPTIONS), |
391203ab | 11345 | DEVLINK_TRAP_GROUP(BUFFER_DROPS), |
13c056ec | 11346 | DEVLINK_TRAP_GROUP(TUNNEL_DROPS), |
ecd942a0 | 11347 | DEVLINK_TRAP_GROUP(ACL_DROPS), |
515eac67 IS |
11348 | DEVLINK_TRAP_GROUP(STP), |
11349 | DEVLINK_TRAP_GROUP(LACP), | |
11350 | DEVLINK_TRAP_GROUP(LLDP), | |
11351 | DEVLINK_TRAP_GROUP(MC_SNOOPING), | |
d77cfd16 IS |
11352 | DEVLINK_TRAP_GROUP(DHCP), |
11353 | DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY), | |
11354 | DEVLINK_TRAP_GROUP(BFD), | |
11355 | DEVLINK_TRAP_GROUP(OSPF), | |
11356 | DEVLINK_TRAP_GROUP(BGP), | |
11357 | DEVLINK_TRAP_GROUP(VRRP), | |
11358 | DEVLINK_TRAP_GROUP(PIM), | |
11359 | DEVLINK_TRAP_GROUP(UC_LB), | |
11360 | DEVLINK_TRAP_GROUP(LOCAL_DELIVERY), | |
ec4f5b36 | 11361 | DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY), |
d77cfd16 IS |
11362 | DEVLINK_TRAP_GROUP(IPV6), |
11363 | DEVLINK_TRAP_GROUP(PTP_EVENT), | |
11364 | DEVLINK_TRAP_GROUP(PTP_GENERAL), | |
5eb18a2b IS |
11365 | DEVLINK_TRAP_GROUP(ACL_SAMPLE), |
11366 | DEVLINK_TRAP_GROUP(ACL_TRAP), | |
10c24eb2 | 11367 | DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS), |
2640a82b | 11368 | DEVLINK_TRAP_GROUP(EAPOL), |
0f420b6c IS |
11369 | }; |
11370 | ||
11371 | static int devlink_trap_generic_verify(const struct devlink_trap *trap) | |
11372 | { | |
11373 | if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX) | |
11374 | return -EINVAL; | |
11375 | ||
11376 | if (strcmp(trap->name, devlink_trap_generic[trap->id].name)) | |
11377 | return -EINVAL; | |
11378 | ||
11379 | if (trap->type != devlink_trap_generic[trap->id].type) | |
11380 | return -EINVAL; | |
11381 | ||
11382 | return 0; | |
11383 | } | |
11384 | ||
11385 | static int devlink_trap_driver_verify(const struct devlink_trap *trap) | |
11386 | { | |
11387 | int i; | |
11388 | ||
11389 | if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX) | |
11390 | return -EINVAL; | |
11391 | ||
11392 | for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) { | |
11393 | if (!strcmp(trap->name, devlink_trap_generic[i].name)) | |
11394 | return -EEXIST; | |
11395 | } | |
11396 | ||
11397 | return 0; | |
11398 | } | |
11399 | ||
11400 | static int devlink_trap_verify(const struct devlink_trap *trap) | |
11401 | { | |
107f1678 | 11402 | if (!trap || !trap->name) |
0f420b6c IS |
11403 | return -EINVAL; |
11404 | ||
11405 | if (trap->generic) | |
11406 | return devlink_trap_generic_verify(trap); | |
11407 | else | |
11408 | return devlink_trap_driver_verify(trap); | |
11409 | } | |
11410 | ||
11411 | static int | |
11412 | devlink_trap_group_generic_verify(const struct devlink_trap_group *group) | |
11413 | { | |
11414 | if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11415 | return -EINVAL; | |
11416 | ||
11417 | if (strcmp(group->name, devlink_trap_group_generic[group->id].name)) | |
11418 | return -EINVAL; | |
11419 | ||
11420 | return 0; | |
11421 | } | |
11422 | ||
11423 | static int | |
11424 | devlink_trap_group_driver_verify(const struct devlink_trap_group *group) | |
11425 | { | |
11426 | int i; | |
11427 | ||
11428 | if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11429 | return -EINVAL; | |
11430 | ||
11431 | for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) { | |
11432 | if (!strcmp(group->name, devlink_trap_group_generic[i].name)) | |
11433 | return -EEXIST; | |
11434 | } | |
11435 | ||
11436 | return 0; | |
11437 | } | |
11438 | ||
11439 | static int devlink_trap_group_verify(const struct devlink_trap_group *group) | |
11440 | { | |
11441 | if (group->generic) | |
11442 | return devlink_trap_group_generic_verify(group); | |
11443 | else | |
11444 | return devlink_trap_group_driver_verify(group); | |
11445 | } | |
11446 | ||
11447 | static void | |
11448 | devlink_trap_group_notify(struct devlink *devlink, | |
11449 | const struct devlink_trap_group_item *group_item, | |
11450 | enum devlink_command cmd) | |
11451 | { | |
11452 | struct sk_buff *msg; | |
11453 | int err; | |
11454 | ||
11455 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW && | |
11456 | cmd != DEVLINK_CMD_TRAP_GROUP_DEL); | |
fb9d19c2 LR |
11457 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11458 | return; | |
0f420b6c IS |
11459 | |
11460 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11461 | if (!msg) | |
11462 | return; | |
11463 | ||
11464 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, cmd, 0, 0, | |
11465 | 0); | |
11466 | if (err) { | |
11467 | nlmsg_free(msg); | |
11468 | return; | |
11469 | } | |
11470 | ||
11471 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11472 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11473 | } | |
11474 | ||
0f420b6c IS |
11475 | static int |
11476 | devlink_trap_item_group_link(struct devlink *devlink, | |
11477 | struct devlink_trap_item *trap_item) | |
11478 | { | |
107f1678 | 11479 | u16 group_id = trap_item->trap->init_group_id; |
0f420b6c IS |
11480 | struct devlink_trap_group_item *group_item; |
11481 | ||
107f1678 | 11482 | group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id); |
a09b37fc IS |
11483 | if (WARN_ON_ONCE(!group_item)) |
11484 | return -EINVAL; | |
0f420b6c IS |
11485 | |
11486 | trap_item->group_item = group_item; | |
11487 | ||
11488 | return 0; | |
11489 | } | |
11490 | ||
0f420b6c IS |
11491 | static void devlink_trap_notify(struct devlink *devlink, |
11492 | const struct devlink_trap_item *trap_item, | |
11493 | enum devlink_command cmd) | |
11494 | { | |
11495 | struct sk_buff *msg; | |
11496 | int err; | |
11497 | ||
11498 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW && | |
11499 | cmd != DEVLINK_CMD_TRAP_DEL); | |
cf530217 LR |
11500 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11501 | return; | |
0f420b6c IS |
11502 | |
11503 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11504 | if (!msg) | |
11505 | return; | |
11506 | ||
11507 | err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0); | |
11508 | if (err) { | |
11509 | nlmsg_free(msg); | |
11510 | return; | |
11511 | } | |
11512 | ||
11513 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11514 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11515 | } | |
11516 | ||
11517 | static int | |
11518 | devlink_trap_register(struct devlink *devlink, | |
11519 | const struct devlink_trap *trap, void *priv) | |
11520 | { | |
11521 | struct devlink_trap_item *trap_item; | |
11522 | int err; | |
11523 | ||
11524 | if (devlink_trap_item_lookup(devlink, trap->name)) | |
11525 | return -EEXIST; | |
11526 | ||
11527 | trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL); | |
11528 | if (!trap_item) | |
11529 | return -ENOMEM; | |
11530 | ||
11531 | trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
11532 | if (!trap_item->stats) { | |
11533 | err = -ENOMEM; | |
11534 | goto err_stats_alloc; | |
11535 | } | |
11536 | ||
11537 | trap_item->trap = trap; | |
11538 | trap_item->action = trap->init_action; | |
11539 | trap_item->priv = priv; | |
11540 | ||
11541 | err = devlink_trap_item_group_link(devlink, trap_item); | |
11542 | if (err) | |
11543 | goto err_group_link; | |
11544 | ||
11545 | err = devlink->ops->trap_init(devlink, trap, trap_item); | |
11546 | if (err) | |
11547 | goto err_trap_init; | |
11548 | ||
11549 | list_add_tail(&trap_item->list, &devlink->trap_list); | |
11550 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
11551 | ||
11552 | return 0; | |
11553 | ||
11554 | err_trap_init: | |
0f420b6c IS |
11555 | err_group_link: |
11556 | free_percpu(trap_item->stats); | |
11557 | err_stats_alloc: | |
11558 | kfree(trap_item); | |
11559 | return err; | |
11560 | } | |
11561 | ||
11562 | static void devlink_trap_unregister(struct devlink *devlink, | |
11563 | const struct devlink_trap *trap) | |
11564 | { | |
11565 | struct devlink_trap_item *trap_item; | |
11566 | ||
11567 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11568 | if (WARN_ON_ONCE(!trap_item)) | |
11569 | return; | |
11570 | ||
11571 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
11572 | list_del(&trap_item->list); | |
11573 | if (devlink->ops->trap_fini) | |
11574 | devlink->ops->trap_fini(devlink, trap, trap_item); | |
0f420b6c IS |
11575 | free_percpu(trap_item->stats); |
11576 | kfree(trap_item); | |
11577 | } | |
11578 | ||
11579 | static void devlink_trap_disable(struct devlink *devlink, | |
11580 | const struct devlink_trap *trap) | |
11581 | { | |
11582 | struct devlink_trap_item *trap_item; | |
11583 | ||
11584 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11585 | if (WARN_ON_ONCE(!trap_item)) | |
11586 | return; | |
11587 | ||
c88e11e0 IS |
11588 | devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP, |
11589 | NULL); | |
0f420b6c IS |
11590 | trap_item->action = DEVLINK_TRAP_ACTION_DROP; |
11591 | } | |
11592 | ||
11593 | /** | |
852e85a7 | 11594 | * devl_traps_register - Register packet traps with devlink. |
0f420b6c IS |
11595 | * @devlink: devlink. |
11596 | * @traps: Packet traps. | |
11597 | * @traps_count: Count of provided packet traps. | |
11598 | * @priv: Driver private information. | |
11599 | * | |
11600 | * Return: Non-zero value on failure. | |
11601 | */ | |
852e85a7 JP |
11602 | int devl_traps_register(struct devlink *devlink, |
11603 | const struct devlink_trap *traps, | |
11604 | size_t traps_count, void *priv) | |
0f420b6c IS |
11605 | { |
11606 | int i, err; | |
11607 | ||
11608 | if (!devlink->ops->trap_init || !devlink->ops->trap_action_set) | |
11609 | return -EINVAL; | |
11610 | ||
852e85a7 | 11611 | devl_assert_locked(devlink); |
0f420b6c IS |
11612 | for (i = 0; i < traps_count; i++) { |
11613 | const struct devlink_trap *trap = &traps[i]; | |
11614 | ||
11615 | err = devlink_trap_verify(trap); | |
11616 | if (err) | |
11617 | goto err_trap_verify; | |
11618 | ||
11619 | err = devlink_trap_register(devlink, trap, priv); | |
11620 | if (err) | |
11621 | goto err_trap_register; | |
11622 | } | |
0f420b6c IS |
11623 | |
11624 | return 0; | |
11625 | ||
11626 | err_trap_register: | |
11627 | err_trap_verify: | |
11628 | for (i--; i >= 0; i--) | |
11629 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11630 | return err; |
11631 | } | |
11632 | EXPORT_SYMBOL_GPL(devl_traps_register); | |
11633 | ||
11634 | /** | |
11635 | * devlink_traps_register - Register packet traps with devlink. | |
11636 | * @devlink: devlink. | |
11637 | * @traps: Packet traps. | |
11638 | * @traps_count: Count of provided packet traps. | |
11639 | * @priv: Driver private information. | |
11640 | * | |
11641 | * Context: Takes and release devlink->lock <mutex>. | |
11642 | * | |
11643 | * Return: Non-zero value on failure. | |
11644 | */ | |
11645 | int devlink_traps_register(struct devlink *devlink, | |
11646 | const struct devlink_trap *traps, | |
11647 | size_t traps_count, void *priv) | |
11648 | { | |
11649 | int err; | |
11650 | ||
11651 | devl_lock(devlink); | |
11652 | err = devl_traps_register(devlink, traps, traps_count, priv); | |
7715023a | 11653 | devl_unlock(devlink); |
0f420b6c IS |
11654 | return err; |
11655 | } | |
11656 | EXPORT_SYMBOL_GPL(devlink_traps_register); | |
11657 | ||
11658 | /** | |
852e85a7 | 11659 | * devl_traps_unregister - Unregister packet traps from devlink. |
0f420b6c IS |
11660 | * @devlink: devlink. |
11661 | * @traps: Packet traps. | |
11662 | * @traps_count: Count of provided packet traps. | |
11663 | */ | |
852e85a7 JP |
11664 | void devl_traps_unregister(struct devlink *devlink, |
11665 | const struct devlink_trap *traps, | |
11666 | size_t traps_count) | |
0f420b6c IS |
11667 | { |
11668 | int i; | |
11669 | ||
852e85a7 | 11670 | devl_assert_locked(devlink); |
0f420b6c IS |
11671 | /* Make sure we do not have any packets in-flight while unregistering |
11672 | * traps by disabling all of them and waiting for a grace period. | |
11673 | */ | |
11674 | for (i = traps_count - 1; i >= 0; i--) | |
11675 | devlink_trap_disable(devlink, &traps[i]); | |
11676 | synchronize_rcu(); | |
11677 | for (i = traps_count - 1; i >= 0; i--) | |
11678 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11679 | } |
11680 | EXPORT_SYMBOL_GPL(devl_traps_unregister); | |
11681 | ||
11682 | /** | |
11683 | * devlink_traps_unregister - Unregister packet traps from devlink. | |
11684 | * @devlink: devlink. | |
11685 | * @traps: Packet traps. | |
11686 | * @traps_count: Count of provided packet traps. | |
11687 | * | |
11688 | * Context: Takes and release devlink->lock <mutex>. | |
11689 | */ | |
11690 | void devlink_traps_unregister(struct devlink *devlink, | |
11691 | const struct devlink_trap *traps, | |
11692 | size_t traps_count) | |
11693 | { | |
11694 | devl_lock(devlink); | |
11695 | devl_traps_unregister(devlink, traps, traps_count); | |
7715023a | 11696 | devl_unlock(devlink); |
0f420b6c IS |
11697 | } |
11698 | EXPORT_SYMBOL_GPL(devlink_traps_unregister); | |
11699 | ||
11700 | static void | |
11701 | devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats, | |
11702 | size_t skb_len) | |
11703 | { | |
11704 | struct devlink_stats *stats; | |
11705 | ||
11706 | stats = this_cpu_ptr(trap_stats); | |
11707 | u64_stats_update_begin(&stats->syncp); | |
958751e0 ED |
11708 | u64_stats_add(&stats->rx_bytes, skb_len); |
11709 | u64_stats_inc(&stats->rx_packets); | |
0f420b6c IS |
11710 | u64_stats_update_end(&stats->syncp); |
11711 | } | |
11712 | ||
5b88823b IS |
11713 | static void |
11714 | devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata, | |
11715 | const struct devlink_trap_item *trap_item, | |
11716 | struct devlink_port *in_devlink_port, | |
11717 | const struct flow_action_cookie *fa_cookie) | |
11718 | { | |
11719 | metadata->trap_name = trap_item->trap->name; | |
11720 | metadata->trap_group_name = trap_item->group_item->group->name; | |
11721 | metadata->fa_cookie = fa_cookie; | |
93e15596 | 11722 | metadata->trap_type = trap_item->trap->type; |
5b88823b IS |
11723 | |
11724 | spin_lock(&in_devlink_port->type_lock); | |
11725 | if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) | |
3830c571 | 11726 | metadata->input_dev = in_devlink_port->type_eth.netdev; |
5b88823b IS |
11727 | spin_unlock(&in_devlink_port->type_lock); |
11728 | } | |
11729 | ||
0f420b6c IS |
11730 | /** |
11731 | * devlink_trap_report - Report trapped packet to drop monitor. | |
11732 | * @devlink: devlink. | |
11733 | * @skb: Trapped packet. | |
11734 | * @trap_ctx: Trap context. | |
11735 | * @in_devlink_port: Input devlink port. | |
5a2e106c | 11736 | * @fa_cookie: Flow action cookie. Could be NULL. |
0f420b6c IS |
11737 | */ |
11738 | void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, | |
5a2e106c JP |
11739 | void *trap_ctx, struct devlink_port *in_devlink_port, |
11740 | const struct flow_action_cookie *fa_cookie) | |
11741 | ||
0f420b6c IS |
11742 | { |
11743 | struct devlink_trap_item *trap_item = trap_ctx; | |
0f420b6c IS |
11744 | |
11745 | devlink_trap_stats_update(trap_item->stats, skb->len); | |
11746 | devlink_trap_stats_update(trap_item->group_item->stats, skb->len); | |
11747 | ||
5b88823b IS |
11748 | if (trace_devlink_trap_report_enabled()) { |
11749 | struct devlink_trap_metadata metadata = {}; | |
11750 | ||
11751 | devlink_trap_report_metadata_set(&metadata, trap_item, | |
11752 | in_devlink_port, fa_cookie); | |
11753 | trace_devlink_trap_report(devlink, skb, &metadata); | |
11754 | } | |
0f420b6c IS |
11755 | } |
11756 | EXPORT_SYMBOL_GPL(devlink_trap_report); | |
11757 | ||
11758 | /** | |
11759 | * devlink_trap_ctx_priv - Trap context to driver private information. | |
11760 | * @trap_ctx: Trap context. | |
11761 | * | |
11762 | * Return: Driver private information passed during registration. | |
11763 | */ | |
11764 | void *devlink_trap_ctx_priv(void *trap_ctx) | |
11765 | { | |
11766 | struct devlink_trap_item *trap_item = trap_ctx; | |
11767 | ||
11768 | return trap_item->priv; | |
11769 | } | |
11770 | EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv); | |
11771 | ||
f9f54392 IS |
11772 | static int |
11773 | devlink_trap_group_item_policer_link(struct devlink *devlink, | |
11774 | struct devlink_trap_group_item *group_item) | |
11775 | { | |
11776 | u32 policer_id = group_item->group->init_policer_id; | |
11777 | struct devlink_trap_policer_item *policer_item; | |
11778 | ||
11779 | if (policer_id == 0) | |
11780 | return 0; | |
11781 | ||
11782 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
11783 | if (WARN_ON_ONCE(!policer_item)) | |
11784 | return -EINVAL; | |
11785 | ||
11786 | group_item->policer_item = policer_item; | |
11787 | ||
11788 | return 0; | |
11789 | } | |
11790 | ||
95ad9555 IS |
11791 | static int |
11792 | devlink_trap_group_register(struct devlink *devlink, | |
11793 | const struct devlink_trap_group *group) | |
11794 | { | |
11795 | struct devlink_trap_group_item *group_item; | |
11796 | int err; | |
11797 | ||
11798 | if (devlink_trap_group_item_lookup(devlink, group->name)) | |
11799 | return -EEXIST; | |
11800 | ||
11801 | group_item = kzalloc(sizeof(*group_item), GFP_KERNEL); | |
11802 | if (!group_item) | |
11803 | return -ENOMEM; | |
11804 | ||
11805 | group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
11806 | if (!group_item->stats) { | |
11807 | err = -ENOMEM; | |
11808 | goto err_stats_alloc; | |
11809 | } | |
11810 | ||
11811 | group_item->group = group; | |
95ad9555 | 11812 | |
f9f54392 IS |
11813 | err = devlink_trap_group_item_policer_link(devlink, group_item); |
11814 | if (err) | |
11815 | goto err_policer_link; | |
11816 | ||
95ad9555 IS |
11817 | if (devlink->ops->trap_group_init) { |
11818 | err = devlink->ops->trap_group_init(devlink, group); | |
11819 | if (err) | |
11820 | goto err_group_init; | |
11821 | } | |
11822 | ||
11823 | list_add_tail(&group_item->list, &devlink->trap_group_list); | |
fb9d19c2 LR |
11824 | devlink_trap_group_notify(devlink, group_item, |
11825 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
11826 | ||
95ad9555 IS |
11827 | return 0; |
11828 | ||
11829 | err_group_init: | |
f9f54392 | 11830 | err_policer_link: |
95ad9555 IS |
11831 | free_percpu(group_item->stats); |
11832 | err_stats_alloc: | |
11833 | kfree(group_item); | |
11834 | return err; | |
11835 | } | |
11836 | ||
11837 | static void | |
11838 | devlink_trap_group_unregister(struct devlink *devlink, | |
11839 | const struct devlink_trap_group *group) | |
11840 | { | |
11841 | struct devlink_trap_group_item *group_item; | |
11842 | ||
11843 | group_item = devlink_trap_group_item_lookup(devlink, group->name); | |
11844 | if (WARN_ON_ONCE(!group_item)) | |
11845 | return; | |
11846 | ||
fb9d19c2 LR |
11847 | devlink_trap_group_notify(devlink, group_item, |
11848 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
95ad9555 IS |
11849 | list_del(&group_item->list); |
11850 | free_percpu(group_item->stats); | |
11851 | kfree(group_item); | |
11852 | } | |
11853 | ||
11854 | /** | |
852e85a7 | 11855 | * devl_trap_groups_register - Register packet trap groups with devlink. |
95ad9555 IS |
11856 | * @devlink: devlink. |
11857 | * @groups: Packet trap groups. | |
11858 | * @groups_count: Count of provided packet trap groups. | |
11859 | * | |
11860 | * Return: Non-zero value on failure. | |
11861 | */ | |
852e85a7 JP |
11862 | int devl_trap_groups_register(struct devlink *devlink, |
11863 | const struct devlink_trap_group *groups, | |
11864 | size_t groups_count) | |
95ad9555 IS |
11865 | { |
11866 | int i, err; | |
11867 | ||
852e85a7 | 11868 | devl_assert_locked(devlink); |
95ad9555 IS |
11869 | for (i = 0; i < groups_count; i++) { |
11870 | const struct devlink_trap_group *group = &groups[i]; | |
11871 | ||
11872 | err = devlink_trap_group_verify(group); | |
11873 | if (err) | |
11874 | goto err_trap_group_verify; | |
11875 | ||
11876 | err = devlink_trap_group_register(devlink, group); | |
11877 | if (err) | |
11878 | goto err_trap_group_register; | |
11879 | } | |
95ad9555 IS |
11880 | |
11881 | return 0; | |
11882 | ||
11883 | err_trap_group_register: | |
11884 | err_trap_group_verify: | |
11885 | for (i--; i >= 0; i--) | |
11886 | devlink_trap_group_unregister(devlink, &groups[i]); | |
852e85a7 JP |
11887 | return err; |
11888 | } | |
11889 | EXPORT_SYMBOL_GPL(devl_trap_groups_register); | |
11890 | ||
11891 | /** | |
11892 | * devlink_trap_groups_register - Register packet trap groups with devlink. | |
11893 | * @devlink: devlink. | |
11894 | * @groups: Packet trap groups. | |
11895 | * @groups_count: Count of provided packet trap groups. | |
11896 | * | |
11897 | * Context: Takes and release devlink->lock <mutex>. | |
11898 | * | |
11899 | * Return: Non-zero value on failure. | |
11900 | */ | |
11901 | int devlink_trap_groups_register(struct devlink *devlink, | |
11902 | const struct devlink_trap_group *groups, | |
11903 | size_t groups_count) | |
11904 | { | |
11905 | int err; | |
11906 | ||
11907 | devl_lock(devlink); | |
11908 | err = devl_trap_groups_register(devlink, groups, groups_count); | |
7715023a | 11909 | devl_unlock(devlink); |
95ad9555 IS |
11910 | return err; |
11911 | } | |
11912 | EXPORT_SYMBOL_GPL(devlink_trap_groups_register); | |
11913 | ||
852e85a7 JP |
11914 | /** |
11915 | * devl_trap_groups_unregister - Unregister packet trap groups from devlink. | |
11916 | * @devlink: devlink. | |
11917 | * @groups: Packet trap groups. | |
11918 | * @groups_count: Count of provided packet trap groups. | |
11919 | */ | |
11920 | void devl_trap_groups_unregister(struct devlink *devlink, | |
11921 | const struct devlink_trap_group *groups, | |
11922 | size_t groups_count) | |
11923 | { | |
11924 | int i; | |
11925 | ||
11926 | devl_assert_locked(devlink); | |
11927 | for (i = groups_count - 1; i >= 0; i--) | |
11928 | devlink_trap_group_unregister(devlink, &groups[i]); | |
11929 | } | |
11930 | EXPORT_SYMBOL_GPL(devl_trap_groups_unregister); | |
11931 | ||
95ad9555 IS |
11932 | /** |
11933 | * devlink_trap_groups_unregister - Unregister packet trap groups from devlink. | |
11934 | * @devlink: devlink. | |
11935 | * @groups: Packet trap groups. | |
11936 | * @groups_count: Count of provided packet trap groups. | |
852e85a7 JP |
11937 | * |
11938 | * Context: Takes and release devlink->lock <mutex>. | |
95ad9555 IS |
11939 | */ |
11940 | void devlink_trap_groups_unregister(struct devlink *devlink, | |
11941 | const struct devlink_trap_group *groups, | |
11942 | size_t groups_count) | |
11943 | { | |
7715023a | 11944 | devl_lock(devlink); |
852e85a7 | 11945 | devl_trap_groups_unregister(devlink, groups, groups_count); |
7715023a | 11946 | devl_unlock(devlink); |
95ad9555 IS |
11947 | } |
11948 | EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister); | |
11949 | ||
1e8c6619 IS |
11950 | static void |
11951 | devlink_trap_policer_notify(struct devlink *devlink, | |
11952 | const struct devlink_trap_policer_item *policer_item, | |
11953 | enum devlink_command cmd) | |
11954 | { | |
11955 | struct sk_buff *msg; | |
11956 | int err; | |
11957 | ||
11958 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && | |
11959 | cmd != DEVLINK_CMD_TRAP_POLICER_DEL); | |
c5e0321e LR |
11960 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11961 | return; | |
1e8c6619 IS |
11962 | |
11963 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11964 | if (!msg) | |
11965 | return; | |
11966 | ||
11967 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, cmd, 0, | |
11968 | 0, 0); | |
11969 | if (err) { | |
11970 | nlmsg_free(msg); | |
11971 | return; | |
11972 | } | |
11973 | ||
11974 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11975 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11976 | } | |
11977 | ||
11978 | static int | |
11979 | devlink_trap_policer_register(struct devlink *devlink, | |
11980 | const struct devlink_trap_policer *policer) | |
11981 | { | |
11982 | struct devlink_trap_policer_item *policer_item; | |
11983 | int err; | |
11984 | ||
11985 | if (devlink_trap_policer_item_lookup(devlink, policer->id)) | |
11986 | return -EEXIST; | |
11987 | ||
11988 | policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL); | |
11989 | if (!policer_item) | |
11990 | return -ENOMEM; | |
11991 | ||
11992 | policer_item->policer = policer; | |
11993 | policer_item->rate = policer->init_rate; | |
11994 | policer_item->burst = policer->init_burst; | |
11995 | ||
11996 | if (devlink->ops->trap_policer_init) { | |
11997 | err = devlink->ops->trap_policer_init(devlink, policer); | |
11998 | if (err) | |
11999 | goto err_policer_init; | |
12000 | } | |
12001 | ||
12002 | list_add_tail(&policer_item->list, &devlink->trap_policer_list); | |
c5e0321e LR |
12003 | devlink_trap_policer_notify(devlink, policer_item, |
12004 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
12005 | ||
1e8c6619 IS |
12006 | return 0; |
12007 | ||
12008 | err_policer_init: | |
12009 | kfree(policer_item); | |
12010 | return err; | |
12011 | } | |
12012 | ||
12013 | static void | |
12014 | devlink_trap_policer_unregister(struct devlink *devlink, | |
12015 | const struct devlink_trap_policer *policer) | |
12016 | { | |
12017 | struct devlink_trap_policer_item *policer_item; | |
12018 | ||
12019 | policer_item = devlink_trap_policer_item_lookup(devlink, policer->id); | |
12020 | if (WARN_ON_ONCE(!policer_item)) | |
12021 | return; | |
12022 | ||
c5e0321e LR |
12023 | devlink_trap_policer_notify(devlink, policer_item, |
12024 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
1e8c6619 IS |
12025 | list_del(&policer_item->list); |
12026 | if (devlink->ops->trap_policer_fini) | |
12027 | devlink->ops->trap_policer_fini(devlink, policer); | |
12028 | kfree(policer_item); | |
12029 | } | |
12030 | ||
12031 | /** | |
852e85a7 | 12032 | * devl_trap_policers_register - Register packet trap policers with devlink. |
1e8c6619 IS |
12033 | * @devlink: devlink. |
12034 | * @policers: Packet trap policers. | |
12035 | * @policers_count: Count of provided packet trap policers. | |
12036 | * | |
12037 | * Return: Non-zero value on failure. | |
12038 | */ | |
12039 | int | |
852e85a7 JP |
12040 | devl_trap_policers_register(struct devlink *devlink, |
12041 | const struct devlink_trap_policer *policers, | |
12042 | size_t policers_count) | |
1e8c6619 IS |
12043 | { |
12044 | int i, err; | |
12045 | ||
852e85a7 | 12046 | devl_assert_locked(devlink); |
1e8c6619 IS |
12047 | for (i = 0; i < policers_count; i++) { |
12048 | const struct devlink_trap_policer *policer = &policers[i]; | |
12049 | ||
12050 | if (WARN_ON(policer->id == 0 || | |
12051 | policer->max_rate < policer->min_rate || | |
12052 | policer->max_burst < policer->min_burst)) { | |
12053 | err = -EINVAL; | |
12054 | goto err_trap_policer_verify; | |
12055 | } | |
12056 | ||
12057 | err = devlink_trap_policer_register(devlink, policer); | |
12058 | if (err) | |
12059 | goto err_trap_policer_register; | |
12060 | } | |
1e8c6619 IS |
12061 | return 0; |
12062 | ||
12063 | err_trap_policer_register: | |
12064 | err_trap_policer_verify: | |
12065 | for (i--; i >= 0; i--) | |
12066 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
852e85a7 JP |
12067 | return err; |
12068 | } | |
12069 | EXPORT_SYMBOL_GPL(devl_trap_policers_register); | |
12070 | ||
852e85a7 JP |
12071 | /** |
12072 | * devl_trap_policers_unregister - Unregister packet trap policers from devlink. | |
12073 | * @devlink: devlink. | |
12074 | * @policers: Packet trap policers. | |
12075 | * @policers_count: Count of provided packet trap policers. | |
12076 | */ | |
12077 | void | |
12078 | devl_trap_policers_unregister(struct devlink *devlink, | |
12079 | const struct devlink_trap_policer *policers, | |
12080 | size_t policers_count) | |
12081 | { | |
12082 | int i; | |
12083 | ||
12084 | devl_assert_locked(devlink); | |
12085 | for (i = policers_count - 1; i >= 0; i--) | |
12086 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
12087 | } | |
12088 | EXPORT_SYMBOL_GPL(devl_trap_policers_unregister); | |
12089 | ||
ddb6e99e JK |
12090 | static void __devlink_compat_running_version(struct devlink *devlink, |
12091 | char *buf, size_t len) | |
12092 | { | |
f94b6063 | 12093 | struct devlink_info_req req = {}; |
ddb6e99e | 12094 | const struct nlattr *nlattr; |
ddb6e99e JK |
12095 | struct sk_buff *msg; |
12096 | int rem, err; | |
12097 | ||
ddb6e99e JK |
12098 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
12099 | if (!msg) | |
12100 | return; | |
12101 | ||
12102 | req.msg = msg; | |
12103 | err = devlink->ops->info_get(devlink, &req, NULL); | |
12104 | if (err) | |
12105 | goto free_msg; | |
12106 | ||
12107 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
12108 | const struct nlattr *kv; | |
12109 | int rem_kv; | |
12110 | ||
12111 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
12112 | continue; | |
12113 | ||
12114 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
12115 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
12116 | continue; | |
12117 | ||
12118 | strlcat(buf, nla_data(kv), len); | |
12119 | strlcat(buf, " ", len); | |
12120 | } | |
12121 | } | |
12122 | free_msg: | |
12123 | nlmsg_free(msg); | |
12124 | } | |
12125 | ||
1af0a094 | 12126 | void devlink_compat_running_version(struct devlink *devlink, |
ddb6e99e JK |
12127 | char *buf, size_t len) |
12128 | { | |
1af0a094 JK |
12129 | if (!devlink->ops->info_get) |
12130 | return; | |
b473b0d2 | 12131 | |
7715023a | 12132 | devl_lock(devlink); |
ed539ba6 JK |
12133 | if (devl_is_registered(devlink)) |
12134 | __devlink_compat_running_version(devlink, buf, len); | |
7715023a | 12135 | devl_unlock(devlink); |
ddb6e99e JK |
12136 | } |
12137 | ||
1af0a094 | 12138 | int devlink_compat_flash_update(struct devlink *devlink, const char *file_name) |
4eceba17 | 12139 | { |
bc75c054 | 12140 | struct devlink_flash_update_params params = {}; |
e0dcd386 | 12141 | int ret; |
4eceba17 | 12142 | |
ed539ba6 JK |
12143 | devl_lock(devlink); |
12144 | if (!devl_is_registered(devlink)) { | |
12145 | ret = -ENODEV; | |
12146 | goto out_unlock; | |
12147 | } | |
12148 | ||
12149 | if (!devlink->ops->flash_update) { | |
12150 | ret = -EOPNOTSUPP; | |
12151 | goto out_unlock; | |
12152 | } | |
4eceba17 | 12153 | |
b44cfd4f JK |
12154 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); |
12155 | if (ret) | |
ed539ba6 | 12156 | goto out_unlock; |
bc75c054 | 12157 | |
52cc5f3a | 12158 | devlink_flash_update_begin_notify(devlink); |
bc75c054 | 12159 | ret = devlink->ops->flash_update(devlink, ¶ms, NULL); |
52cc5f3a | 12160 | devlink_flash_update_end_notify(devlink); |
1b45ff6c | 12161 | |
b44cfd4f | 12162 | release_firmware(params.fw); |
ed539ba6 JK |
12163 | out_unlock: |
12164 | devl_unlock(devlink); | |
b44cfd4f | 12165 | |
b473b0d2 | 12166 | return ret; |
4eceba17 JK |
12167 | } |
12168 | ||
af3836df JP |
12169 | int devlink_compat_phys_port_name_get(struct net_device *dev, |
12170 | char *name, size_t len) | |
12171 | { | |
12172 | struct devlink_port *devlink_port; | |
12173 | ||
12174 | /* RTNL mutex is held here which ensures that devlink_port | |
12175 | * instance cannot disappear in the middle. No need to take | |
12176 | * any devlink lock as only permanent values are accessed. | |
12177 | */ | |
12178 | ASSERT_RTNL(); | |
12179 | ||
8eba37f7 | 12180 | devlink_port = dev->devlink_port; |
af3836df JP |
12181 | if (!devlink_port) |
12182 | return -EOPNOTSUPP; | |
12183 | ||
12184 | return __devlink_port_phys_port_name_get(devlink_port, name, len); | |
12185 | } | |
12186 | ||
7e1146e8 JP |
12187 | int devlink_compat_switch_id_get(struct net_device *dev, |
12188 | struct netdev_phys_item_id *ppid) | |
12189 | { | |
12190 | struct devlink_port *devlink_port; | |
12191 | ||
043b8413 VB |
12192 | /* Caller must hold RTNL mutex or reference to dev, which ensures that |
12193 | * devlink_port instance cannot disappear in the middle. No need to take | |
7e1146e8 JP |
12194 | * any devlink lock as only permanent values are accessed. |
12195 | */ | |
8eba37f7 | 12196 | devlink_port = dev->devlink_port; |
46737a19 | 12197 | if (!devlink_port || !devlink_port->switch_port) |
7e1146e8 JP |
12198 | return -EOPNOTSUPP; |
12199 | ||
12200 | memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid)); | |
12201 | ||
12202 | return 0; | |
12203 | } |