1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /* Copyright (c) 2019 Mellanox Technologies. All rights reserved */
3
4 #include <linux/bitops.h>
5 #include <linux/kernel.h>
6 #include <linux/netlink.h>
7 #include <net/devlink.h>
8 #include <uapi/linux/devlink.h>
9
10 #include "core.h"
11 #include "reg.h"
12 #include "spectrum.h"
13 #include "spectrum_trap.h"
14
15 struct mlxsw_sp_trap_policer_item {
16 struct devlink_trap_policer policer;
17 u16 hw_id;
18 };
19
20 struct mlxsw_sp_trap_group_item {
21 struct devlink_trap_group group;
22 u16 hw_group_id;
23 u8 priority;
24 u8 fixed_policer:1; /* Whether policer binding can change */
25 };
26
27 #define MLXSW_SP_TRAP_LISTENERS_MAX 3
28
29 struct mlxsw_sp_trap_item {
30 struct devlink_trap trap;
31 struct mlxsw_listener listeners_arr[MLXSW_SP_TRAP_LISTENERS_MAX];
32 u8 is_source:1;
33 };
34
35 /* All driver-specific traps must be documented in
36 * Documentation/networking/devlink/mlxsw.rst
37 */
38 enum {
39 DEVLINK_MLXSW_TRAP_ID_BASE = DEVLINK_TRAP_GENERIC_ID_MAX,
40 DEVLINK_MLXSW_TRAP_ID_IRIF_DISABLED,
41 DEVLINK_MLXSW_TRAP_ID_ERIF_DISABLED,
42 };
43
44 #define DEVLINK_MLXSW_TRAP_NAME_IRIF_DISABLED \
45 "irif_disabled"
46 #define DEVLINK_MLXSW_TRAP_NAME_ERIF_DISABLED \
47 "erif_disabled"
48
49 #define MLXSW_SP_TRAP_METADATA DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT
50
51 enum {
52 /* Packet was mirrored from ingress. */
53 MLXSW_SP_MIRROR_REASON_INGRESS = 1,
54 /* Packet was mirrored from policy engine. */
55 MLXSW_SP_MIRROR_REASON_POLICY_ENGINE = 2,
56 /* Packet was early dropped. */
57 MLXSW_SP_MIRROR_REASON_INGRESS_WRED = 9,
58 /* Packet was mirrored from egress. */
59 MLXSW_SP_MIRROR_REASON_EGRESS = 14,
60 };
61
mlxsw_sp_rx_listener(struct mlxsw_sp * mlxsw_sp,struct sk_buff * skb,u16 local_port,struct mlxsw_sp_port * mlxsw_sp_port)62 static int mlxsw_sp_rx_listener(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
63 u16 local_port,
64 struct mlxsw_sp_port *mlxsw_sp_port)
65 {
66 struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
67
68 if (unlikely(!mlxsw_sp_port)) {
69 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
70 local_port);
71 kfree_skb(skb);
72 return -EINVAL;
73 }
74
75 skb->dev = mlxsw_sp_port->dev;
76
77 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
78 u64_stats_update_begin(&pcpu_stats->syncp);
79 pcpu_stats->rx_packets++;
80 pcpu_stats->rx_bytes += skb->len;
81 u64_stats_update_end(&pcpu_stats->syncp);
82
83 skb->protocol = eth_type_trans(skb, skb->dev);
84
85 return 0;
86 }
87
mlxsw_sp_rx_drop_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)88 static void mlxsw_sp_rx_drop_listener(struct sk_buff *skb, u16 local_port,
89 void *trap_ctx)
90 {
91 struct devlink_port *in_devlink_port;
92 struct mlxsw_sp_port *mlxsw_sp_port;
93 struct mlxsw_sp *mlxsw_sp;
94 struct devlink *devlink;
95 int err;
96
97 mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
98 mlxsw_sp_port = mlxsw_sp->ports[local_port];
99
100 err = mlxsw_sp_rx_listener(mlxsw_sp, skb, local_port, mlxsw_sp_port);
101 if (err)
102 return;
103
104 devlink = priv_to_devlink(mlxsw_sp->core);
105 in_devlink_port = mlxsw_core_port_devlink_port_get(mlxsw_sp->core,
106 local_port);
107 skb_push(skb, ETH_HLEN);
108 devlink_trap_report(devlink, skb, trap_ctx, in_devlink_port, NULL);
109 consume_skb(skb);
110 }
111
mlxsw_sp_rx_acl_drop_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)112 static void mlxsw_sp_rx_acl_drop_listener(struct sk_buff *skb, u16 local_port,
113 void *trap_ctx)
114 {
115 u32 cookie_index = mlxsw_skb_cb(skb)->rx_md_info.cookie_index;
116 const struct flow_action_cookie *fa_cookie;
117 struct devlink_port *in_devlink_port;
118 struct mlxsw_sp_port *mlxsw_sp_port;
119 struct mlxsw_sp *mlxsw_sp;
120 struct devlink *devlink;
121 int err;
122
123 mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
124 mlxsw_sp_port = mlxsw_sp->ports[local_port];
125
126 err = mlxsw_sp_rx_listener(mlxsw_sp, skb, local_port, mlxsw_sp_port);
127 if (err)
128 return;
129
130 devlink = priv_to_devlink(mlxsw_sp->core);
131 in_devlink_port = mlxsw_core_port_devlink_port_get(mlxsw_sp->core,
132 local_port);
133 skb_push(skb, ETH_HLEN);
134 rcu_read_lock();
135 fa_cookie = mlxsw_sp_acl_act_cookie_lookup(mlxsw_sp, cookie_index);
136 devlink_trap_report(devlink, skb, trap_ctx, in_devlink_port, fa_cookie);
137 rcu_read_unlock();
138 consume_skb(skb);
139 }
140
__mlxsw_sp_rx_no_mark_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)141 static int __mlxsw_sp_rx_no_mark_listener(struct sk_buff *skb, u16 local_port,
142 void *trap_ctx)
143 {
144 struct devlink_port *in_devlink_port;
145 struct mlxsw_sp_port *mlxsw_sp_port;
146 struct mlxsw_sp *mlxsw_sp;
147 struct devlink *devlink;
148 int err;
149
150 mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
151 mlxsw_sp_port = mlxsw_sp->ports[local_port];
152
153 err = mlxsw_sp_rx_listener(mlxsw_sp, skb, local_port, mlxsw_sp_port);
154 if (err)
155 return err;
156
157 devlink = priv_to_devlink(mlxsw_sp->core);
158 in_devlink_port = mlxsw_core_port_devlink_port_get(mlxsw_sp->core,
159 local_port);
160 skb_push(skb, ETH_HLEN);
161 devlink_trap_report(devlink, skb, trap_ctx, in_devlink_port, NULL);
162 skb_pull(skb, ETH_HLEN);
163
164 return 0;
165 }
166
mlxsw_sp_rx_no_mark_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)167 static void mlxsw_sp_rx_no_mark_listener(struct sk_buff *skb, u16 local_port,
168 void *trap_ctx)
169 {
170 int err;
171
172 err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
173 if (err)
174 return;
175
176 netif_receive_skb(skb);
177 }
178
mlxsw_sp_rx_mark_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)179 static void mlxsw_sp_rx_mark_listener(struct sk_buff *skb, u16 local_port,
180 void *trap_ctx)
181 {
182 skb->offload_fwd_mark = 1;
183 mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
184 }
185
mlxsw_sp_rx_l3_mark_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)186 static void mlxsw_sp_rx_l3_mark_listener(struct sk_buff *skb, u16 local_port,
187 void *trap_ctx)
188 {
189 skb->offload_l3_fwd_mark = 1;
190 skb->offload_fwd_mark = 1;
191 mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
192 }
193
mlxsw_sp_rx_ptp_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)194 static void mlxsw_sp_rx_ptp_listener(struct sk_buff *skb, u16 local_port,
195 void *trap_ctx)
196 {
197 struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
198 int err;
199
200 err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
201 if (err)
202 return;
203
204 /* The PTP handler expects skb->data to point to the start of the
205 * Ethernet header.
206 */
207 skb_push(skb, ETH_HLEN);
208 mlxsw_sp_ptp_receive(mlxsw_sp, skb, local_port);
209 }
210
211 static struct mlxsw_sp_port *
mlxsw_sp_sample_tx_port_get(struct mlxsw_sp * mlxsw_sp,const struct mlxsw_rx_md_info * rx_md_info)212 mlxsw_sp_sample_tx_port_get(struct mlxsw_sp *mlxsw_sp,
213 const struct mlxsw_rx_md_info *rx_md_info)
214 {
215 u16 local_port;
216
217 if (!rx_md_info->tx_port_valid)
218 return NULL;
219
220 if (rx_md_info->tx_port_is_lag)
221 local_port = mlxsw_core_lag_mapping_get(mlxsw_sp->core,
222 rx_md_info->tx_lag_id,
223 rx_md_info->tx_lag_port_index);
224 else
225 local_port = rx_md_info->tx_sys_port;
226
227 if (local_port >= mlxsw_core_max_ports(mlxsw_sp->core))
228 return NULL;
229
230 return mlxsw_sp->ports[local_port];
231 }
232
233 /* The latency units are determined according to MOGCR.mirror_latency_units. It
234 * defaults to 64 nanoseconds.
235 */
236 #define MLXSW_SP_MIRROR_LATENCY_SHIFT 6
237
mlxsw_sp_psample_md_init(struct mlxsw_sp * mlxsw_sp,struct psample_metadata * md,struct sk_buff * skb,int in_ifindex,bool truncate,u32 trunc_size)238 static void mlxsw_sp_psample_md_init(struct mlxsw_sp *mlxsw_sp,
239 struct psample_metadata *md,
240 struct sk_buff *skb, int in_ifindex,
241 bool truncate, u32 trunc_size)
242 {
243 struct mlxsw_rx_md_info *rx_md_info = &mlxsw_skb_cb(skb)->rx_md_info;
244 struct mlxsw_sp_port *mlxsw_sp_port;
245
246 md->trunc_size = truncate ? trunc_size : skb->len;
247 md->in_ifindex = in_ifindex;
248 mlxsw_sp_port = mlxsw_sp_sample_tx_port_get(mlxsw_sp, rx_md_info);
249 md->out_ifindex = mlxsw_sp_port && mlxsw_sp_port->dev ?
250 mlxsw_sp_port->dev->ifindex : 0;
251 md->out_tc_valid = rx_md_info->tx_tc_valid;
252 md->out_tc = rx_md_info->tx_tc;
253 md->out_tc_occ_valid = rx_md_info->tx_congestion_valid;
254 md->out_tc_occ = rx_md_info->tx_congestion;
255 md->latency_valid = rx_md_info->latency_valid;
256 md->latency = rx_md_info->latency;
257 md->latency <<= MLXSW_SP_MIRROR_LATENCY_SHIFT;
258 }
259
mlxsw_sp_rx_sample_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)260 static void mlxsw_sp_rx_sample_listener(struct sk_buff *skb, u16 local_port,
261 void *trap_ctx)
262 {
263 struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
264 struct mlxsw_sp_sample_trigger trigger;
265 struct mlxsw_sp_sample_params *params;
266 struct mlxsw_sp_port *mlxsw_sp_port;
267 struct psample_metadata md = {};
268 int err;
269
270 err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
271 if (err)
272 return;
273
274 mlxsw_sp_port = mlxsw_sp->ports[local_port];
275 if (!mlxsw_sp_port)
276 goto out;
277
278 trigger.type = MLXSW_SP_SAMPLE_TRIGGER_TYPE_INGRESS;
279 trigger.local_port = local_port;
280 params = mlxsw_sp_sample_trigger_params_lookup(mlxsw_sp, &trigger);
281 if (!params)
282 goto out;
283
284 /* The psample module expects skb->data to point to the start of the
285 * Ethernet header.
286 */
287 skb_push(skb, ETH_HLEN);
288 mlxsw_sp_psample_md_init(mlxsw_sp, &md, skb,
289 mlxsw_sp_port->dev->ifindex, params->truncate,
290 params->trunc_size);
291 psample_sample_packet(params->psample_group, skb, params->rate, &md);
292 out:
293 consume_skb(skb);
294 }
295
mlxsw_sp_rx_sample_tx_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)296 static void mlxsw_sp_rx_sample_tx_listener(struct sk_buff *skb, u16 local_port,
297 void *trap_ctx)
298 {
299 struct mlxsw_rx_md_info *rx_md_info = &mlxsw_skb_cb(skb)->rx_md_info;
300 struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
301 struct mlxsw_sp_port *mlxsw_sp_port, *mlxsw_sp_port_tx;
302 struct mlxsw_sp_sample_trigger trigger;
303 struct mlxsw_sp_sample_params *params;
304 struct psample_metadata md = {};
305 int err;
306
307 /* Locally generated packets are not reported from the policy engine
308 * trigger, so do not report them from the egress trigger as well.
309 */
310 if (local_port == MLXSW_PORT_CPU_PORT)
311 goto out;
312
313 err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
314 if (err)
315 return;
316
317 mlxsw_sp_port = mlxsw_sp->ports[local_port];
318 if (!mlxsw_sp_port)
319 goto out;
320
321 /* Packet was sampled from Tx, so we need to retrieve the sample
322 * parameters based on the Tx port and not the Rx port.
323 */
324 mlxsw_sp_port_tx = mlxsw_sp_sample_tx_port_get(mlxsw_sp, rx_md_info);
325 if (!mlxsw_sp_port_tx)
326 goto out;
327
328 trigger.type = MLXSW_SP_SAMPLE_TRIGGER_TYPE_EGRESS;
329 trigger.local_port = mlxsw_sp_port_tx->local_port;
330 params = mlxsw_sp_sample_trigger_params_lookup(mlxsw_sp, &trigger);
331 if (!params)
332 goto out;
333
334 /* The psample module expects skb->data to point to the start of the
335 * Ethernet header.
336 */
337 skb_push(skb, ETH_HLEN);
338 mlxsw_sp_psample_md_init(mlxsw_sp, &md, skb,
339 mlxsw_sp_port->dev->ifindex, params->truncate,
340 params->trunc_size);
341 psample_sample_packet(params->psample_group, skb, params->rate, &md);
342 out:
343 consume_skb(skb);
344 }
345
mlxsw_sp_rx_sample_acl_listener(struct sk_buff * skb,u16 local_port,void * trap_ctx)346 static void mlxsw_sp_rx_sample_acl_listener(struct sk_buff *skb, u16 local_port,
347 void *trap_ctx)
348 {
349 struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx);
350 struct mlxsw_sp_sample_trigger trigger = {
351 .type = MLXSW_SP_SAMPLE_TRIGGER_TYPE_POLICY_ENGINE,
352 };
353 struct mlxsw_sp_sample_params *params;
354 struct mlxsw_sp_port *mlxsw_sp_port;
355 struct psample_metadata md = {};
356 int err;
357
358 err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx);
359 if (err)
360 return;
361
362 mlxsw_sp_port = mlxsw_sp->ports[local_port];
363 if (!mlxsw_sp_port)
364 goto out;
365
366 params = mlxsw_sp_sample_trigger_params_lookup(mlxsw_sp, &trigger);
367 if (!params)
368 goto out;
369
370 /* The psample module expects skb->data to point to the start of the
371 * Ethernet header.
372 */
373 skb_push(skb, ETH_HLEN);
374 mlxsw_sp_psample_md_init(mlxsw_sp, &md, skb,
375 mlxsw_sp_port->dev->ifindex, params->truncate,
376 params->trunc_size);
377 psample_sample_packet(params->psample_group, skb, params->rate, &md);
378 out:
379 consume_skb(skb);
380 }
381
382 #define MLXSW_SP_TRAP_DROP(_id, _group_id) \
383 DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \
384 DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
385 MLXSW_SP_TRAP_METADATA)
386
387 #define MLXSW_SP_TRAP_DROP_EXT(_id, _group_id, _metadata) \
388 DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \
389 DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
390 MLXSW_SP_TRAP_METADATA | (_metadata))
391
392 #define MLXSW_SP_TRAP_BUFFER_DROP(_id) \
393 DEVLINK_TRAP_GENERIC(DROP, TRAP, _id, \
394 DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS, \
395 MLXSW_SP_TRAP_METADATA)
396
397 #define MLXSW_SP_TRAP_DRIVER_DROP(_id, _group_id) \
398 DEVLINK_TRAP_DRIVER(DROP, DROP, DEVLINK_MLXSW_TRAP_ID_##_id, \
399 DEVLINK_MLXSW_TRAP_NAME_##_id, \
400 DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
401 MLXSW_SP_TRAP_METADATA)
402
403 #define MLXSW_SP_TRAP_EXCEPTION(_id, _group_id) \
404 DEVLINK_TRAP_GENERIC(EXCEPTION, TRAP, _id, \
405 DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
406 MLXSW_SP_TRAP_METADATA)
407
408 #define MLXSW_SP_TRAP_CONTROL(_id, _group_id, _action) \
409 DEVLINK_TRAP_GENERIC(CONTROL, _action, _id, \
410 DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
411 MLXSW_SP_TRAP_METADATA)
412
413 #define MLXSW_SP_RXL_DISCARD(_id, _group_id) \
414 MLXSW_RXL_DIS(mlxsw_sp_rx_drop_listener, DISCARD_##_id, \
415 TRAP_EXCEPTION_TO_CPU, false, SP_##_group_id, \
416 SET_FW_DEFAULT, SP_##_group_id)
417
418 #define MLXSW_SP_RXL_ACL_DISCARD(_id, _en_group_id, _dis_group_id) \
419 MLXSW_RXL_DIS(mlxsw_sp_rx_acl_drop_listener, DISCARD_##_id, \
420 TRAP_EXCEPTION_TO_CPU, false, SP_##_en_group_id, \
421 SET_FW_DEFAULT, SP_##_dis_group_id)
422
423 #define MLXSW_SP_RXL_BUFFER_DISCARD(_mirror_reason) \
424 MLXSW_RXL_MIRROR(mlxsw_sp_rx_drop_listener, 0, SP_BUFFER_DISCARDS, \
425 MLXSW_SP_MIRROR_REASON_##_mirror_reason)
426
427 #define MLXSW_SP_RXL_EXCEPTION(_id, _group_id, _action) \
428 MLXSW_RXL(mlxsw_sp_rx_mark_listener, _id, \
429 _action, false, SP_##_group_id, SET_FW_DEFAULT)
430
431 #define MLXSW_SP_RXL_NO_MARK(_id, _group_id, _action, _is_ctrl) \
432 MLXSW_RXL(mlxsw_sp_rx_no_mark_listener, _id, _action, \
433 _is_ctrl, SP_##_group_id, DISCARD)
434
435 #define MLXSW_SP_RXL_MARK(_id, _group_id, _action, _is_ctrl) \
436 MLXSW_RXL(mlxsw_sp_rx_mark_listener, _id, _action, _is_ctrl, \
437 SP_##_group_id, DISCARD)
438
439 #define MLXSW_SP_RXL_L3_MARK(_id, _group_id, _action, _is_ctrl) \
440 MLXSW_RXL(mlxsw_sp_rx_l3_mark_listener, _id, _action, _is_ctrl, \
441 SP_##_group_id, DISCARD)
442
443 #define MLXSW_SP_TRAP_POLICER(_id, _rate, _burst) \
444 DEVLINK_TRAP_POLICER(_id, _rate, _burst, \
445 MLXSW_REG_QPCR_HIGHEST_CIR, \
446 MLXSW_REG_QPCR_LOWEST_CIR, \
447 1 << MLXSW_REG_QPCR_HIGHEST_CBS, \
448 1 << MLXSW_REG_QPCR_LOWEST_CBS)
449
450 /* Ordered by policer identifier */
451 static const struct mlxsw_sp_trap_policer_item
452 mlxsw_sp_trap_policer_items_arr[] = {
453 {
454 .policer = MLXSW_SP_TRAP_POLICER(1, 10 * 1024, 4096),
455 },
456 {
457 .policer = MLXSW_SP_TRAP_POLICER(2, 128, 128),
458 },
459 {
460 .policer = MLXSW_SP_TRAP_POLICER(3, 128, 128),
461 },
462 {
463 .policer = MLXSW_SP_TRAP_POLICER(4, 128, 128),
464 },
465 {
466 .policer = MLXSW_SP_TRAP_POLICER(5, 16 * 1024, 8192),
467 },
468 {
469 .policer = MLXSW_SP_TRAP_POLICER(6, 128, 128),
470 },
471 {
472 .policer = MLXSW_SP_TRAP_POLICER(7, 1024, 512),
473 },
474 {
475 .policer = MLXSW_SP_TRAP_POLICER(8, 20 * 1024, 8192),
476 },
477 {
478 .policer = MLXSW_SP_TRAP_POLICER(9, 128, 128),
479 },
480 {
481 .policer = MLXSW_SP_TRAP_POLICER(10, 1024, 512),
482 },
483 {
484 .policer = MLXSW_SP_TRAP_POLICER(11, 256, 128),
485 },
486 {
487 .policer = MLXSW_SP_TRAP_POLICER(12, 128, 128),
488 },
489 {
490 .policer = MLXSW_SP_TRAP_POLICER(13, 128, 128),
491 },
492 {
493 .policer = MLXSW_SP_TRAP_POLICER(14, 1024, 512),
494 },
495 {
496 .policer = MLXSW_SP_TRAP_POLICER(15, 1024, 512),
497 },
498 {
499 .policer = MLXSW_SP_TRAP_POLICER(16, 24 * 1024, 16384),
500 },
501 {
502 .policer = MLXSW_SP_TRAP_POLICER(17, 19 * 1024, 8192),
503 },
504 {
505 .policer = MLXSW_SP_TRAP_POLICER(18, 1024, 512),
506 },
507 {
508 .policer = MLXSW_SP_TRAP_POLICER(19, 1024, 512),
509 },
510 {
511 .policer = MLXSW_SP_TRAP_POLICER(20, 10240, 4096),
512 },
513 {
514 .policer = MLXSW_SP_TRAP_POLICER(21, 128, 128),
515 },
516 };
517
518 static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = {
519 {
520 .group = DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 1),
521 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L2_DISCARDS,
522 .priority = 0,
523 },
524 {
525 .group = DEVLINK_TRAP_GROUP_GENERIC(L3_DROPS, 1),
526 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_DISCARDS,
527 .priority = 0,
528 },
529 {
530 .group = DEVLINK_TRAP_GROUP_GENERIC(L3_EXCEPTIONS, 1),
531 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_EXCEPTIONS,
532 .priority = 2,
533 },
534 {
535 .group = DEVLINK_TRAP_GROUP_GENERIC(TUNNEL_DROPS, 1),
536 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_TUNNEL_DISCARDS,
537 .priority = 0,
538 },
539 {
540 .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_DROPS, 1),
541 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_ACL_DISCARDS,
542 .priority = 0,
543 },
544 {
545 .group = DEVLINK_TRAP_GROUP_GENERIC(STP, 2),
546 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_STP,
547 .priority = 5,
548 },
549 {
550 .group = DEVLINK_TRAP_GROUP_GENERIC(LACP, 3),
551 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP,
552 .priority = 5,
553 },
554 {
555 .group = DEVLINK_TRAP_GROUP_GENERIC(LLDP, 4),
556 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP,
557 .priority = 5,
558 },
559 {
560 .group = DEVLINK_TRAP_GROUP_GENERIC(MC_SNOOPING, 5),
561 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_MC_SNOOPING,
562 .priority = 3,
563 },
564 {
565 .group = DEVLINK_TRAP_GROUP_GENERIC(DHCP, 6),
566 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP,
567 .priority = 2,
568 },
569 {
570 .group = DEVLINK_TRAP_GROUP_GENERIC(NEIGH_DISCOVERY, 7),
571 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_NEIGH_DISCOVERY,
572 .priority = 2,
573 },
574 {
575 .group = DEVLINK_TRAP_GROUP_GENERIC(BFD, 8),
576 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_BFD,
577 .priority = 5,
578 },
579 {
580 .group = DEVLINK_TRAP_GROUP_GENERIC(OSPF, 9),
581 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF,
582 .priority = 5,
583 },
584 {
585 .group = DEVLINK_TRAP_GROUP_GENERIC(BGP, 10),
586 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP,
587 .priority = 4,
588 },
589 {
590 .group = DEVLINK_TRAP_GROUP_GENERIC(VRRP, 11),
591 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP,
592 .priority = 5,
593 },
594 {
595 .group = DEVLINK_TRAP_GROUP_GENERIC(PIM, 12),
596 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM,
597 .priority = 5,
598 },
599 {
600 .group = DEVLINK_TRAP_GROUP_GENERIC(UC_LB, 13),
601 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR,
602 .priority = 0,
603 },
604 {
605 .group = DEVLINK_TRAP_GROUP_GENERIC(LOCAL_DELIVERY, 14),
606 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME,
607 .priority = 2,
608 },
609 {
610 .group = DEVLINK_TRAP_GROUP_GENERIC(EXTERNAL_DELIVERY, 19),
611 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_EXTERNAL_ROUTE,
612 .priority = 1,
613 },
614 {
615 .group = DEVLINK_TRAP_GROUP_GENERIC(IPV6, 15),
616 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6,
617 .priority = 2,
618 },
619 {
620 .group = DEVLINK_TRAP_GROUP_GENERIC(PTP_EVENT, 16),
621 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0,
622 .priority = 5,
623 },
624 {
625 .group = DEVLINK_TRAP_GROUP_GENERIC(PTP_GENERAL, 17),
626 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1,
627 .priority = 2,
628 },
629 {
630 .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_TRAP, 18),
631 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_FLOW_LOGGING,
632 .priority = 4,
633 },
634 {
635 .group = DEVLINK_TRAP_GROUP_GENERIC(EAPOL, 21),
636 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_EAPOL,
637 .priority = 5,
638 },
639 };
640
641 static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
642 {
643 .trap = MLXSW_SP_TRAP_DROP(SMAC_MC, L2_DROPS),
644 .listeners_arr = {
645 MLXSW_SP_RXL_DISCARD(ING_PACKET_SMAC_MC, L2_DISCARDS),
646 },
647 },
648 {
649 .trap = MLXSW_SP_TRAP_DROP(VLAN_TAG_MISMATCH, L2_DROPS),
650 .listeners_arr = {
651 MLXSW_SP_RXL_DISCARD(ING_SWITCH_VTAG_ALLOW,
652 L2_DISCARDS),
653 },
654 },
655 {
656 .trap = MLXSW_SP_TRAP_DROP(INGRESS_VLAN_FILTER, L2_DROPS),
657 .listeners_arr = {
658 MLXSW_SP_RXL_DISCARD(ING_SWITCH_VLAN, L2_DISCARDS),
659 },
660 },
661 {
662 .trap = MLXSW_SP_TRAP_DROP(INGRESS_STP_FILTER, L2_DROPS),
663 .listeners_arr = {
664 MLXSW_SP_RXL_DISCARD(ING_SWITCH_STP, L2_DISCARDS),
665 },
666 },
667 {
668 .trap = MLXSW_SP_TRAP_DROP(EMPTY_TX_LIST, L2_DROPS),
669 .listeners_arr = {
670 MLXSW_SP_RXL_DISCARD(LOOKUP_SWITCH_UC, L2_DISCARDS),
671 MLXSW_SP_RXL_DISCARD(LOOKUP_SWITCH_MC_NULL, L2_DISCARDS),
672 },
673 },
674 {
675 .trap = MLXSW_SP_TRAP_DROP(PORT_LOOPBACK_FILTER, L2_DROPS),
676 .listeners_arr = {
677 MLXSW_SP_RXL_DISCARD(LOOKUP_SWITCH_LB, L2_DISCARDS),
678 },
679 },
680 {
681 .trap = MLXSW_SP_TRAP_DROP(BLACKHOLE_ROUTE, L3_DROPS),
682 .listeners_arr = {
683 MLXSW_SP_RXL_DISCARD(ROUTER2, L3_DISCARDS),
684 },
685 },
686 {
687 .trap = MLXSW_SP_TRAP_DROP(NON_IP_PACKET, L3_DROPS),
688 .listeners_arr = {
689 MLXSW_SP_RXL_DISCARD(ING_ROUTER_NON_IP_PACKET,
690 L3_DISCARDS),
691 },
692 },
693 {
694 .trap = MLXSW_SP_TRAP_DROP(UC_DIP_MC_DMAC, L3_DROPS),
695 .listeners_arr = {
696 MLXSW_SP_RXL_DISCARD(ING_ROUTER_UC_DIP_MC_DMAC,
697 L3_DISCARDS),
698 },
699 },
700 {
701 .trap = MLXSW_SP_TRAP_DROP(DIP_LB, L3_DROPS),
702 .listeners_arr = {
703 MLXSW_SP_RXL_DISCARD(ING_ROUTER_DIP_LB, L3_DISCARDS),
704 },
705 },
706 {
707 .trap = MLXSW_SP_TRAP_DROP(SIP_MC, L3_DROPS),
708 .listeners_arr = {
709 MLXSW_SP_RXL_DISCARD(ING_ROUTER_SIP_MC, L3_DISCARDS),
710 },
711 },
712 {
713 .trap = MLXSW_SP_TRAP_DROP(SIP_LB, L3_DROPS),
714 .listeners_arr = {
715 MLXSW_SP_RXL_DISCARD(ING_ROUTER_SIP_LB, L3_DISCARDS),
716 },
717 },
718 {
719 .trap = MLXSW_SP_TRAP_DROP(CORRUPTED_IP_HDR, L3_DROPS),
720 .listeners_arr = {
721 MLXSW_SP_RXL_DISCARD(ING_ROUTER_CORRUPTED_IP_HDR,
722 L3_DISCARDS),
723 },
724 },
725 {
726 .trap = MLXSW_SP_TRAP_DROP(IPV4_SIP_BC, L3_DROPS),
727 .listeners_arr = {
728 MLXSW_SP_RXL_DISCARD(ING_ROUTER_IPV4_SIP_BC,
729 L3_DISCARDS),
730 },
731 },
732 {
733 .trap = MLXSW_SP_TRAP_DROP(IPV6_MC_DIP_RESERVED_SCOPE,
734 L3_DROPS),
735 .listeners_arr = {
736 MLXSW_SP_RXL_DISCARD(IPV6_MC_DIP_RESERVED_SCOPE,
737 L3_DISCARDS),
738 },
739 },
740 {
741 .trap = MLXSW_SP_TRAP_DROP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE,
742 L3_DROPS),
743 .listeners_arr = {
744 MLXSW_SP_RXL_DISCARD(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE,
745 L3_DISCARDS),
746 },
747 },
748 {
749 .trap = MLXSW_SP_TRAP_EXCEPTION(MTU_ERROR, L3_EXCEPTIONS),
750 .listeners_arr = {
751 MLXSW_SP_RXL_EXCEPTION(MTUERROR, L3_EXCEPTIONS,
752 TRAP_TO_CPU),
753 },
754 },
755 {
756 .trap = MLXSW_SP_TRAP_EXCEPTION(TTL_ERROR, L3_EXCEPTIONS),
757 .listeners_arr = {
758 MLXSW_SP_RXL_EXCEPTION(TTLERROR, L3_EXCEPTIONS,
759 TRAP_TO_CPU),
760 },
761 },
762 {
763 .trap = MLXSW_SP_TRAP_EXCEPTION(RPF, L3_EXCEPTIONS),
764 .listeners_arr = {
765 MLXSW_SP_RXL_EXCEPTION(RPF, L3_EXCEPTIONS, TRAP_TO_CPU),
766 },
767 },
768 {
769 .trap = MLXSW_SP_TRAP_EXCEPTION(REJECT_ROUTE, L3_EXCEPTIONS),
770 .listeners_arr = {
771 MLXSW_SP_RXL_EXCEPTION(RTR_INGRESS1, L3_EXCEPTIONS,
772 TRAP_TO_CPU),
773 },
774 },
775 {
776 .trap = MLXSW_SP_TRAP_EXCEPTION(UNRESOLVED_NEIGH,
777 L3_EXCEPTIONS),
778 .listeners_arr = {
779 MLXSW_SP_RXL_EXCEPTION(HOST_MISS_IPV4, L3_EXCEPTIONS,
780 TRAP_TO_CPU),
781 MLXSW_SP_RXL_EXCEPTION(HOST_MISS_IPV6, L3_EXCEPTIONS,
782 TRAP_TO_CPU),
783 MLXSW_SP_RXL_EXCEPTION(RTR_EGRESS0, L3_EXCEPTIONS,
784 TRAP_EXCEPTION_TO_CPU),
785 },
786 },
787 {
788 .trap = MLXSW_SP_TRAP_EXCEPTION(IPV4_LPM_UNICAST_MISS,
789 L3_EXCEPTIONS),
790 .listeners_arr = {
791 MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER_LPM4,
792 L3_EXCEPTIONS,
793 TRAP_EXCEPTION_TO_CPU),
794 },
795 },
796 {
797 .trap = MLXSW_SP_TRAP_EXCEPTION(IPV6_LPM_UNICAST_MISS,
798 L3_EXCEPTIONS),
799 .listeners_arr = {
800 MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER_LPM6,
801 L3_EXCEPTIONS,
802 TRAP_EXCEPTION_TO_CPU),
803 },
804 },
805 {
806 .trap = MLXSW_SP_TRAP_DRIVER_DROP(IRIF_DISABLED, L3_DROPS),
807 .listeners_arr = {
808 MLXSW_SP_RXL_DISCARD(ROUTER_IRIF_EN, L3_DISCARDS),
809 },
810 },
811 {
812 .trap = MLXSW_SP_TRAP_DRIVER_DROP(ERIF_DISABLED, L3_DROPS),
813 .listeners_arr = {
814 MLXSW_SP_RXL_DISCARD(ROUTER_ERIF_EN, L3_DISCARDS),
815 },
816 },
817 {
818 .trap = MLXSW_SP_TRAP_DROP(NON_ROUTABLE, L3_DROPS),
819 .listeners_arr = {
820 MLXSW_SP_RXL_DISCARD(NON_ROUTABLE, L3_DISCARDS),
821 },
822 },
823 {
824 .trap = MLXSW_SP_TRAP_EXCEPTION(DECAP_ERROR, TUNNEL_DROPS),
825 .listeners_arr = {
826 MLXSW_SP_RXL_EXCEPTION(DECAP_ECN0, TUNNEL_DISCARDS,
827 TRAP_EXCEPTION_TO_CPU),
828 MLXSW_SP_RXL_EXCEPTION(IPIP_DECAP_ERROR,
829 TUNNEL_DISCARDS,
830 TRAP_EXCEPTION_TO_CPU),
831 MLXSW_SP_RXL_EXCEPTION(DISCARD_DEC_PKT, TUNNEL_DISCARDS,
832 TRAP_EXCEPTION_TO_CPU),
833 },
834 },
835 {
836 .trap = MLXSW_SP_TRAP_DROP(OVERLAY_SMAC_MC, TUNNEL_DROPS),
837 .listeners_arr = {
838 MLXSW_SP_RXL_DISCARD(OVERLAY_SMAC_MC, TUNNEL_DISCARDS),
839 },
840 },
841 {
842 .trap = MLXSW_SP_TRAP_DROP_EXT(INGRESS_FLOW_ACTION_DROP,
843 ACL_DROPS,
844 DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE),
845 .listeners_arr = {
846 MLXSW_SP_RXL_ACL_DISCARD(INGRESS_ACL, ACL_DISCARDS,
847 DUMMY),
848 },
849 },
850 {
851 .trap = MLXSW_SP_TRAP_DROP_EXT(EGRESS_FLOW_ACTION_DROP,
852 ACL_DROPS,
853 DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE),
854 .listeners_arr = {
855 MLXSW_SP_RXL_ACL_DISCARD(EGRESS_ACL, ACL_DISCARDS,
856 DUMMY),
857 },
858 },
859 {
860 .trap = MLXSW_SP_TRAP_CONTROL(STP, STP, TRAP),
861 .listeners_arr = {
862 MLXSW_SP_RXL_NO_MARK(STP, STP, TRAP_TO_CPU, true),
863 },
864 },
865 {
866 .trap = MLXSW_SP_TRAP_CONTROL(LACP, LACP, TRAP),
867 .listeners_arr = {
868 MLXSW_SP_RXL_NO_MARK(LACP, LACP, TRAP_TO_CPU, true),
869 },
870 },
871 {
872 .trap = MLXSW_SP_TRAP_CONTROL(LLDP, LLDP, TRAP),
873 .listeners_arr = {
874 MLXSW_RXL(mlxsw_sp_rx_ptp_listener, LLDP, TRAP_TO_CPU,
875 true, SP_LLDP, DISCARD),
876 },
877 },
878 {
879 .trap = MLXSW_SP_TRAP_CONTROL(IGMP_QUERY, MC_SNOOPING, MIRROR),
880 .listeners_arr = {
881 MLXSW_SP_RXL_MARK(IGMP_QUERY, MC_SNOOPING,
882 MIRROR_TO_CPU, false),
883 },
884 },
885 {
886 .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V1_REPORT, MC_SNOOPING,
887 TRAP),
888 .listeners_arr = {
889 MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, MC_SNOOPING,
890 TRAP_TO_CPU, false),
891 },
892 },
893 {
894 .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V2_REPORT, MC_SNOOPING,
895 TRAP),
896 .listeners_arr = {
897 MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, MC_SNOOPING,
898 TRAP_TO_CPU, false),
899 },
900 },
901 {
902 .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V3_REPORT, MC_SNOOPING,
903 TRAP),
904 .listeners_arr = {
905 MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, MC_SNOOPING,
906 TRAP_TO_CPU, false),
907 },
908 },
909 {
910 .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V2_LEAVE, MC_SNOOPING,
911 TRAP),
912 .listeners_arr = {
913 MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, MC_SNOOPING,
914 TRAP_TO_CPU, false),
915 },
916 },
917 {
918 .trap = MLXSW_SP_TRAP_CONTROL(MLD_QUERY, MC_SNOOPING, MIRROR),
919 .listeners_arr = {
920 MLXSW_SP_RXL_MARK(IPV6_MLDV12_LISTENER_QUERY,
921 MC_SNOOPING, MIRROR_TO_CPU, false),
922 },
923 },
924 {
925 .trap = MLXSW_SP_TRAP_CONTROL(MLD_V1_REPORT, MC_SNOOPING,
926 TRAP),
927 .listeners_arr = {
928 MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_REPORT,
929 MC_SNOOPING, TRAP_TO_CPU, false),
930 },
931 },
932 {
933 .trap = MLXSW_SP_TRAP_CONTROL(MLD_V2_REPORT, MC_SNOOPING,
934 TRAP),
935 .listeners_arr = {
936 MLXSW_SP_RXL_NO_MARK(IPV6_MLDV2_LISTENER_REPORT,
937 MC_SNOOPING, TRAP_TO_CPU, false),
938 },
939 },
940 {
941 .trap = MLXSW_SP_TRAP_CONTROL(MLD_V1_DONE, MC_SNOOPING,
942 TRAP),
943 .listeners_arr = {
944 MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_DONE,
945 MC_SNOOPING, TRAP_TO_CPU, false),
946 },
947 },
948 {
949 .trap = MLXSW_SP_TRAP_CONTROL(IPV4_DHCP, DHCP, TRAP),
950 .listeners_arr = {
951 MLXSW_SP_RXL_MARK(IPV4_DHCP, DHCP, TRAP_TO_CPU, false),
952 },
953 },
954 {
955 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DHCP, DHCP, TRAP),
956 .listeners_arr = {
957 MLXSW_SP_RXL_MARK(IPV6_DHCP, DHCP, TRAP_TO_CPU, false),
958 },
959 },
960 {
961 .trap = MLXSW_SP_TRAP_CONTROL(ARP_REQUEST, NEIGH_DISCOVERY,
962 MIRROR),
963 .listeners_arr = {
964 MLXSW_SP_RXL_MARK(ROUTER_ARPBC, NEIGH_DISCOVERY,
965 TRAP_TO_CPU, false),
966 },
967 },
968 {
969 .trap = MLXSW_SP_TRAP_CONTROL(ARP_RESPONSE, NEIGH_DISCOVERY,
970 MIRROR),
971 .listeners_arr = {
972 MLXSW_SP_RXL_MARK(ROUTER_ARPUC, NEIGH_DISCOVERY,
973 TRAP_TO_CPU, false),
974 },
975 },
976 {
977 .trap = MLXSW_SP_TRAP_CONTROL(ARP_OVERLAY, NEIGH_DISCOVERY,
978 TRAP),
979 .listeners_arr = {
980 MLXSW_SP_RXL_NO_MARK(NVE_DECAP_ARP, NEIGH_DISCOVERY,
981 TRAP_TO_CPU, false),
982 },
983 },
984 {
985 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_NEIGH_SOLICIT,
986 NEIGH_DISCOVERY, TRAP),
987 .listeners_arr = {
988 MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION,
989 NEIGH_DISCOVERY, TRAP_TO_CPU, false),
990 },
991 },
992 {
993 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_NEIGH_ADVERT,
994 NEIGH_DISCOVERY, TRAP),
995 .listeners_arr = {
996 MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISEMENT,
997 NEIGH_DISCOVERY, TRAP_TO_CPU, false),
998 },
999 },
1000 {
1001 .trap = MLXSW_SP_TRAP_CONTROL(IPV4_BFD, BFD, TRAP),
1002 .listeners_arr = {
1003 MLXSW_SP_RXL_MARK(IPV4_BFD, BFD, TRAP_TO_CPU, false),
1004 },
1005 },
1006 {
1007 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_BFD, BFD, TRAP),
1008 .listeners_arr = {
1009 MLXSW_SP_RXL_MARK(IPV6_BFD, BFD, TRAP_TO_CPU, false),
1010 },
1011 },
1012 {
1013 .trap = MLXSW_SP_TRAP_CONTROL(IPV4_OSPF, OSPF, TRAP),
1014 .listeners_arr = {
1015 MLXSW_SP_RXL_MARK(IPV4_OSPF, OSPF, TRAP_TO_CPU, false),
1016 },
1017 },
1018 {
1019 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_OSPF, OSPF, TRAP),
1020 .listeners_arr = {
1021 MLXSW_SP_RXL_MARK(IPV6_OSPF, OSPF, TRAP_TO_CPU, false),
1022 },
1023 },
1024 {
1025 .trap = MLXSW_SP_TRAP_CONTROL(IPV4_BGP, BGP, TRAP),
1026 .listeners_arr = {
1027 MLXSW_SP_RXL_MARK(IPV4_BGP, BGP, TRAP_TO_CPU, false),
1028 },
1029 },
1030 {
1031 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_BGP, BGP, TRAP),
1032 .listeners_arr = {
1033 MLXSW_SP_RXL_MARK(IPV6_BGP, BGP, TRAP_TO_CPU, false),
1034 },
1035 },
1036 {
1037 .trap = MLXSW_SP_TRAP_CONTROL(IPV4_VRRP, VRRP, TRAP),
1038 .listeners_arr = {
1039 MLXSW_SP_RXL_MARK(IPV4_VRRP, VRRP, TRAP_TO_CPU, false),
1040 },
1041 },
1042 {
1043 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_VRRP, VRRP, TRAP),
1044 .listeners_arr = {
1045 MLXSW_SP_RXL_MARK(IPV6_VRRP, VRRP, TRAP_TO_CPU, false),
1046 },
1047 },
1048 {
1049 .trap = MLXSW_SP_TRAP_CONTROL(IPV4_PIM, PIM, TRAP),
1050 .listeners_arr = {
1051 MLXSW_SP_RXL_MARK(IPV4_PIM, PIM, TRAP_TO_CPU, false),
1052 },
1053 },
1054 {
1055 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_PIM, PIM, TRAP),
1056 .listeners_arr = {
1057 MLXSW_SP_RXL_MARK(IPV6_PIM, PIM, TRAP_TO_CPU, false),
1058 },
1059 },
1060 {
1061 .trap = MLXSW_SP_TRAP_CONTROL(UC_LB, UC_LB, MIRROR),
1062 .listeners_arr = {
1063 MLXSW_SP_RXL_L3_MARK(LBERROR, LBERROR, MIRROR_TO_CPU,
1064 false),
1065 },
1066 },
1067 {
1068 .trap = MLXSW_SP_TRAP_CONTROL(LOCAL_ROUTE, LOCAL_DELIVERY,
1069 TRAP),
1070 .listeners_arr = {
1071 MLXSW_SP_RXL_MARK(IP2ME, IP2ME, TRAP_TO_CPU, false),
1072 },
1073 },
1074 {
1075 .trap = MLXSW_SP_TRAP_CONTROL(EXTERNAL_ROUTE, EXTERNAL_DELIVERY,
1076 TRAP),
1077 .listeners_arr = {
1078 MLXSW_SP_RXL_MARK(RTR_INGRESS0, EXTERNAL_ROUTE,
1079 TRAP_TO_CPU, false),
1080 },
1081 },
1082 {
1083 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_UC_DIP_LINK_LOCAL_SCOPE,
1084 LOCAL_DELIVERY, TRAP),
1085 .listeners_arr = {
1086 MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, IP2ME,
1087 TRAP_TO_CPU, false),
1088 },
1089 },
1090 {
1091 .trap = MLXSW_SP_TRAP_CONTROL(IPV4_ROUTER_ALERT, LOCAL_DELIVERY,
1092 TRAP),
1093 .listeners_arr = {
1094 MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, IP2ME, TRAP_TO_CPU,
1095 false),
1096 },
1097 },
1098 {
1099 /* IPV6_ROUTER_ALERT is defined in uAPI as 22, but it is not
1100 * used in this file, so undefine it.
1101 */
1102 #undef IPV6_ROUTER_ALERT
1103 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_ALERT, LOCAL_DELIVERY,
1104 TRAP),
1105 .listeners_arr = {
1106 MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, IP2ME, TRAP_TO_CPU,
1107 false),
1108 },
1109 },
1110 {
1111 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DIP_ALL_NODES, IPV6, TRAP),
1112 .listeners_arr = {
1113 MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, IPV6,
1114 TRAP_TO_CPU, false),
1115 },
1116 },
1117 {
1118 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DIP_ALL_ROUTERS, IPV6, TRAP),
1119 .listeners_arr = {
1120 MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, IPV6,
1121 TRAP_TO_CPU, false),
1122 },
1123 },
1124 {
1125 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_SOLICIT, IPV6, TRAP),
1126 .listeners_arr = {
1127 MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, IPV6,
1128 TRAP_TO_CPU, false),
1129 },
1130 },
1131 {
1132 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_ADVERT, IPV6, TRAP),
1133 .listeners_arr = {
1134 MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISEMENT, IPV6,
1135 TRAP_TO_CPU, false),
1136 },
1137 },
1138 {
1139 .trap = MLXSW_SP_TRAP_CONTROL(IPV6_REDIRECT, IPV6, TRAP),
1140 .listeners_arr = {
1141 MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, IPV6,
1142 TRAP_TO_CPU, false),
1143 },
1144 },
1145 {
1146 .trap = MLXSW_SP_TRAP_CONTROL(PTP_EVENT, PTP_EVENT, TRAP),
1147 .listeners_arr = {
1148 MLXSW_RXL(mlxsw_sp_rx_ptp_listener, PTP0, TRAP_TO_CPU,
1149 false, SP_PTP0, DISCARD),
1150 },
1151 },
1152 {
1153 .trap = MLXSW_SP_TRAP_CONTROL(PTP_GENERAL, PTP_GENERAL, TRAP),
1154 .listeners_arr = {
1155 MLXSW_SP_RXL_NO_MARK(PTP1, PTP1, TRAP_TO_CPU, false),
1156 },
1157 },
1158 {
1159 .trap = MLXSW_SP_TRAP_CONTROL(FLOW_ACTION_TRAP, ACL_TRAP, TRAP),
1160 .listeners_arr = {
1161 MLXSW_SP_RXL_NO_MARK(ACL0, FLOW_LOGGING, TRAP_TO_CPU,
1162 false),
1163 },
1164 },
1165 {
1166 .trap = MLXSW_SP_TRAP_DROP(BLACKHOLE_NEXTHOP, L3_DROPS),
1167 .listeners_arr = {
1168 MLXSW_SP_RXL_DISCARD(ROUTER3, L3_DISCARDS),
1169 },
1170 },
1171 {
1172 .trap = MLXSW_SP_TRAP_CONTROL(EAPOL, EAPOL, TRAP),
1173 .listeners_arr = {
1174 MLXSW_SP_RXL_NO_MARK(EAPOL, EAPOL, TRAP_TO_CPU, true),
1175 },
1176 },
1177 {
1178 .trap = MLXSW_SP_TRAP_DROP(LOCKED_PORT, L2_DROPS),
1179 .listeners_arr = {
1180 MLXSW_RXL_DIS(mlxsw_sp_rx_drop_listener, FDB_MISS,
1181 TRAP_EXCEPTION_TO_CPU, false,
1182 SP_L2_DISCARDS, DISCARD, SP_L2_DISCARDS),
1183 MLXSW_RXL_DIS(mlxsw_sp_rx_drop_listener, FDB_MISMATCH,
1184 TRAP_EXCEPTION_TO_CPU, false,
1185 SP_L2_DISCARDS, DISCARD, SP_L2_DISCARDS),
1186 },
1187 },
1188 };
1189
1190 static struct mlxsw_sp_trap_policer_item *
mlxsw_sp_trap_policer_item_lookup(struct mlxsw_sp * mlxsw_sp,u32 id)1191 mlxsw_sp_trap_policer_item_lookup(struct mlxsw_sp *mlxsw_sp, u32 id)
1192 {
1193 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1194 int i;
1195
1196 for (i = 0; i < trap->policers_count; i++) {
1197 if (trap->policer_items_arr[i].policer.id == id)
1198 return &trap->policer_items_arr[i];
1199 }
1200
1201 return NULL;
1202 }
1203
1204 static struct mlxsw_sp_trap_group_item *
mlxsw_sp_trap_group_item_lookup(struct mlxsw_sp * mlxsw_sp,u16 id)1205 mlxsw_sp_trap_group_item_lookup(struct mlxsw_sp *mlxsw_sp, u16 id)
1206 {
1207 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1208 int i;
1209
1210 for (i = 0; i < trap->groups_count; i++) {
1211 if (trap->group_items_arr[i].group.id == id)
1212 return &trap->group_items_arr[i];
1213 }
1214
1215 return NULL;
1216 }
1217
1218 static struct mlxsw_sp_trap_item *
mlxsw_sp_trap_item_lookup(struct mlxsw_sp * mlxsw_sp,u16 id)1219 mlxsw_sp_trap_item_lookup(struct mlxsw_sp *mlxsw_sp, u16 id)
1220 {
1221 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1222 int i;
1223
1224 for (i = 0; i < trap->traps_count; i++) {
1225 if (trap->trap_items_arr[i].trap.id == id)
1226 return &trap->trap_items_arr[i];
1227 }
1228
1229 return NULL;
1230 }
1231
mlxsw_sp_trap_cpu_policers_set(struct mlxsw_sp * mlxsw_sp)1232 static int mlxsw_sp_trap_cpu_policers_set(struct mlxsw_sp *mlxsw_sp)
1233 {
1234 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1235 char qpcr_pl[MLXSW_REG_QPCR_LEN];
1236 u16 hw_id;
1237
1238 /* The purpose of "thin" policer is to drop as many packets
1239 * as possible. The dummy group is using it.
1240 */
1241 hw_id = find_first_zero_bit(trap->policers_usage, trap->max_policers);
1242 if (WARN_ON(hw_id == trap->max_policers))
1243 return -ENOBUFS;
1244
1245 __set_bit(hw_id, trap->policers_usage);
1246 trap->thin_policer_hw_id = hw_id;
1247 mlxsw_reg_qpcr_pack(qpcr_pl, hw_id, MLXSW_REG_QPCR_IR_UNITS_M,
1248 false, 1, 4);
1249 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qpcr), qpcr_pl);
1250 }
1251
mlxsw_sp_trap_dummy_group_init(struct mlxsw_sp * mlxsw_sp)1252 static int mlxsw_sp_trap_dummy_group_init(struct mlxsw_sp *mlxsw_sp)
1253 {
1254 char htgt_pl[MLXSW_REG_HTGT_LEN];
1255
1256 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_SP_DUMMY,
1257 mlxsw_sp->trap->thin_policer_hw_id, 0, 1);
1258 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
1259 }
1260
mlxsw_sp_trap_policer_items_arr_init(struct mlxsw_sp * mlxsw_sp)1261 static int mlxsw_sp_trap_policer_items_arr_init(struct mlxsw_sp *mlxsw_sp)
1262 {
1263 size_t arr_size = ARRAY_SIZE(mlxsw_sp_trap_policer_items_arr);
1264 size_t elem_size = sizeof(struct mlxsw_sp_trap_policer_item);
1265 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1266 size_t free_policers = 0;
1267 u32 last_id;
1268 int i;
1269
1270 for_each_clear_bit(i, trap->policers_usage, trap->max_policers)
1271 free_policers++;
1272
1273 if (arr_size > free_policers) {
1274 dev_err(mlxsw_sp->bus_info->dev, "Exceeded number of supported packet trap policers\n");
1275 return -ENOBUFS;
1276 }
1277
1278 trap->policer_items_arr = kcalloc(free_policers, elem_size, GFP_KERNEL);
1279 if (!trap->policer_items_arr)
1280 return -ENOMEM;
1281
1282 trap->policers_count = free_policers;
1283
1284 /* Initialize policer items array with pre-defined policers. */
1285 memcpy(trap->policer_items_arr, mlxsw_sp_trap_policer_items_arr,
1286 elem_size * arr_size);
1287
1288 /* Initialize policer items array with the rest of the available
1289 * policers.
1290 */
1291 last_id = mlxsw_sp_trap_policer_items_arr[arr_size - 1].policer.id;
1292 for (i = arr_size; i < trap->policers_count; i++) {
1293 const struct mlxsw_sp_trap_policer_item *policer_item;
1294
1295 /* Use parameters set for first policer and override
1296 * relevant ones.
1297 */
1298 policer_item = &mlxsw_sp_trap_policer_items_arr[0];
1299 trap->policer_items_arr[i] = *policer_item;
1300 trap->policer_items_arr[i].policer.id = ++last_id;
1301 trap->policer_items_arr[i].policer.init_rate = 1;
1302 trap->policer_items_arr[i].policer.init_burst = 16;
1303 }
1304
1305 return 0;
1306 }
1307
mlxsw_sp_trap_policer_items_arr_fini(struct mlxsw_sp * mlxsw_sp)1308 static void mlxsw_sp_trap_policer_items_arr_fini(struct mlxsw_sp *mlxsw_sp)
1309 {
1310 kfree(mlxsw_sp->trap->policer_items_arr);
1311 }
1312
mlxsw_sp_trap_policers_init(struct mlxsw_sp * mlxsw_sp)1313 static int mlxsw_sp_trap_policers_init(struct mlxsw_sp *mlxsw_sp)
1314 {
1315 struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
1316 const struct mlxsw_sp_trap_policer_item *policer_item;
1317 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1318 int err, i;
1319
1320 err = mlxsw_sp_trap_policer_items_arr_init(mlxsw_sp);
1321 if (err)
1322 return err;
1323
1324 for (i = 0; i < trap->policers_count; i++) {
1325 policer_item = &trap->policer_items_arr[i];
1326 err = devl_trap_policers_register(devlink,
1327 &policer_item->policer, 1);
1328 if (err)
1329 goto err_trap_policer_register;
1330 }
1331
1332 return 0;
1333
1334 err_trap_policer_register:
1335 for (i--; i >= 0; i--) {
1336 policer_item = &trap->policer_items_arr[i];
1337 devl_trap_policers_unregister(devlink,
1338 &policer_item->policer, 1);
1339 }
1340 mlxsw_sp_trap_policer_items_arr_fini(mlxsw_sp);
1341 return err;
1342 }
1343
mlxsw_sp_trap_policers_fini(struct mlxsw_sp * mlxsw_sp)1344 static void mlxsw_sp_trap_policers_fini(struct mlxsw_sp *mlxsw_sp)
1345 {
1346 struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
1347 const struct mlxsw_sp_trap_policer_item *policer_item;
1348 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1349 int i;
1350
1351 for (i = trap->policers_count - 1; i >= 0; i--) {
1352 policer_item = &trap->policer_items_arr[i];
1353 devl_trap_policers_unregister(devlink,
1354 &policer_item->policer, 1);
1355 }
1356 mlxsw_sp_trap_policer_items_arr_fini(mlxsw_sp);
1357 }
1358
mlxsw_sp_trap_group_items_arr_init(struct mlxsw_sp * mlxsw_sp)1359 static int mlxsw_sp_trap_group_items_arr_init(struct mlxsw_sp *mlxsw_sp)
1360 {
1361 size_t common_groups_count = ARRAY_SIZE(mlxsw_sp_trap_group_items_arr);
1362 const struct mlxsw_sp_trap_group_item *spec_group_items_arr;
1363 size_t elem_size = sizeof(struct mlxsw_sp_trap_group_item);
1364 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1365 size_t groups_count, spec_groups_count;
1366 int err;
1367
1368 err = mlxsw_sp->trap_ops->groups_init(mlxsw_sp, &spec_group_items_arr,
1369 &spec_groups_count);
1370 if (err)
1371 return err;
1372
1373 /* The group items array is created by concatenating the common trap
1374 * group items and the ASIC-specific trap group items.
1375 */
1376 groups_count = common_groups_count + spec_groups_count;
1377 trap->group_items_arr = kcalloc(groups_count, elem_size, GFP_KERNEL);
1378 if (!trap->group_items_arr)
1379 return -ENOMEM;
1380
1381 memcpy(trap->group_items_arr, mlxsw_sp_trap_group_items_arr,
1382 elem_size * common_groups_count);
1383 memcpy(trap->group_items_arr + common_groups_count,
1384 spec_group_items_arr, elem_size * spec_groups_count);
1385
1386 trap->groups_count = groups_count;
1387
1388 return 0;
1389 }
1390
mlxsw_sp_trap_group_items_arr_fini(struct mlxsw_sp * mlxsw_sp)1391 static void mlxsw_sp_trap_group_items_arr_fini(struct mlxsw_sp *mlxsw_sp)
1392 {
1393 kfree(mlxsw_sp->trap->group_items_arr);
1394 }
1395
mlxsw_sp_trap_groups_init(struct mlxsw_sp * mlxsw_sp)1396 static int mlxsw_sp_trap_groups_init(struct mlxsw_sp *mlxsw_sp)
1397 {
1398 struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
1399 const struct mlxsw_sp_trap_group_item *group_item;
1400 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1401 int err, i;
1402
1403 err = mlxsw_sp_trap_group_items_arr_init(mlxsw_sp);
1404 if (err)
1405 return err;
1406
1407 for (i = 0; i < trap->groups_count; i++) {
1408 group_item = &trap->group_items_arr[i];
1409 err = devl_trap_groups_register(devlink, &group_item->group, 1);
1410 if (err)
1411 goto err_trap_group_register;
1412 }
1413
1414 return 0;
1415
1416 err_trap_group_register:
1417 for (i--; i >= 0; i--) {
1418 group_item = &trap->group_items_arr[i];
1419 devl_trap_groups_unregister(devlink, &group_item->group, 1);
1420 }
1421 mlxsw_sp_trap_group_items_arr_fini(mlxsw_sp);
1422 return err;
1423 }
1424
mlxsw_sp_trap_groups_fini(struct mlxsw_sp * mlxsw_sp)1425 static void mlxsw_sp_trap_groups_fini(struct mlxsw_sp *mlxsw_sp)
1426 {
1427 struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
1428 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1429 int i;
1430
1431 for (i = trap->groups_count - 1; i >= 0; i--) {
1432 const struct mlxsw_sp_trap_group_item *group_item;
1433
1434 group_item = &trap->group_items_arr[i];
1435 devl_trap_groups_unregister(devlink, &group_item->group, 1);
1436 }
1437 mlxsw_sp_trap_group_items_arr_fini(mlxsw_sp);
1438 }
1439
1440 static bool
mlxsw_sp_trap_listener_is_valid(const struct mlxsw_listener * listener)1441 mlxsw_sp_trap_listener_is_valid(const struct mlxsw_listener *listener)
1442 {
1443 return listener->trap_id != 0;
1444 }
1445
mlxsw_sp_trap_items_arr_init(struct mlxsw_sp * mlxsw_sp)1446 static int mlxsw_sp_trap_items_arr_init(struct mlxsw_sp *mlxsw_sp)
1447 {
1448 size_t common_traps_count = ARRAY_SIZE(mlxsw_sp_trap_items_arr);
1449 const struct mlxsw_sp_trap_item *spec_trap_items_arr;
1450 size_t elem_size = sizeof(struct mlxsw_sp_trap_item);
1451 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1452 size_t traps_count, spec_traps_count;
1453 int err;
1454
1455 err = mlxsw_sp->trap_ops->traps_init(mlxsw_sp, &spec_trap_items_arr,
1456 &spec_traps_count);
1457 if (err)
1458 return err;
1459
1460 /* The trap items array is created by concatenating the common trap
1461 * items and the ASIC-specific trap items.
1462 */
1463 traps_count = common_traps_count + spec_traps_count;
1464 trap->trap_items_arr = kcalloc(traps_count, elem_size, GFP_KERNEL);
1465 if (!trap->trap_items_arr)
1466 return -ENOMEM;
1467
1468 memcpy(trap->trap_items_arr, mlxsw_sp_trap_items_arr,
1469 elem_size * common_traps_count);
1470 memcpy(trap->trap_items_arr + common_traps_count,
1471 spec_trap_items_arr, elem_size * spec_traps_count);
1472
1473 trap->traps_count = traps_count;
1474
1475 return 0;
1476 }
1477
mlxsw_sp_trap_items_arr_fini(struct mlxsw_sp * mlxsw_sp)1478 static void mlxsw_sp_trap_items_arr_fini(struct mlxsw_sp *mlxsw_sp)
1479 {
1480 kfree(mlxsw_sp->trap->trap_items_arr);
1481 }
1482
mlxsw_sp_traps_init(struct mlxsw_sp * mlxsw_sp)1483 static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
1484 {
1485 struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
1486 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1487 const struct mlxsw_sp_trap_item *trap_item;
1488 int err, i;
1489
1490 err = mlxsw_sp_trap_items_arr_init(mlxsw_sp);
1491 if (err)
1492 return err;
1493
1494 for (i = 0; i < trap->traps_count; i++) {
1495 trap_item = &trap->trap_items_arr[i];
1496 err = devl_traps_register(devlink, &trap_item->trap, 1,
1497 mlxsw_sp);
1498 if (err)
1499 goto err_trap_register;
1500 }
1501
1502 return 0;
1503
1504 err_trap_register:
1505 for (i--; i >= 0; i--) {
1506 trap_item = &trap->trap_items_arr[i];
1507 devl_traps_unregister(devlink, &trap_item->trap, 1);
1508 }
1509 mlxsw_sp_trap_items_arr_fini(mlxsw_sp);
1510 return err;
1511 }
1512
mlxsw_sp_traps_fini(struct mlxsw_sp * mlxsw_sp)1513 static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
1514 {
1515 struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
1516 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1517 int i;
1518
1519 for (i = trap->traps_count - 1; i >= 0; i--) {
1520 const struct mlxsw_sp_trap_item *trap_item;
1521
1522 trap_item = &trap->trap_items_arr[i];
1523 devl_traps_unregister(devlink, &trap_item->trap, 1);
1524 }
1525 mlxsw_sp_trap_items_arr_fini(mlxsw_sp);
1526 }
1527
mlxsw_sp_devlink_traps_init(struct mlxsw_sp * mlxsw_sp)1528 int mlxsw_sp_devlink_traps_init(struct mlxsw_sp *mlxsw_sp)
1529 {
1530 int err;
1531
1532 err = mlxsw_sp_trap_cpu_policers_set(mlxsw_sp);
1533 if (err)
1534 return err;
1535
1536 err = mlxsw_sp_trap_dummy_group_init(mlxsw_sp);
1537 if (err)
1538 return err;
1539
1540 err = mlxsw_sp_trap_policers_init(mlxsw_sp);
1541 if (err)
1542 return err;
1543
1544 err = mlxsw_sp_trap_groups_init(mlxsw_sp);
1545 if (err)
1546 goto err_trap_groups_init;
1547
1548 err = mlxsw_sp_traps_init(mlxsw_sp);
1549 if (err)
1550 goto err_traps_init;
1551
1552 return 0;
1553
1554 err_traps_init:
1555 mlxsw_sp_trap_groups_fini(mlxsw_sp);
1556 err_trap_groups_init:
1557 mlxsw_sp_trap_policers_fini(mlxsw_sp);
1558 return err;
1559 }
1560
mlxsw_sp_devlink_traps_fini(struct mlxsw_sp * mlxsw_sp)1561 void mlxsw_sp_devlink_traps_fini(struct mlxsw_sp *mlxsw_sp)
1562 {
1563 mlxsw_sp_traps_fini(mlxsw_sp);
1564 mlxsw_sp_trap_groups_fini(mlxsw_sp);
1565 mlxsw_sp_trap_policers_fini(mlxsw_sp);
1566 }
1567
mlxsw_sp_trap_init(struct mlxsw_core * mlxsw_core,const struct devlink_trap * trap,void * trap_ctx)1568 int mlxsw_sp_trap_init(struct mlxsw_core *mlxsw_core,
1569 const struct devlink_trap *trap, void *trap_ctx)
1570 {
1571 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1572 const struct mlxsw_sp_trap_item *trap_item;
1573 int i;
1574
1575 trap_item = mlxsw_sp_trap_item_lookup(mlxsw_sp, trap->id);
1576 if (WARN_ON(!trap_item))
1577 return -EINVAL;
1578
1579 for (i = 0; i < MLXSW_SP_TRAP_LISTENERS_MAX; i++) {
1580 const struct mlxsw_listener *listener;
1581 int err;
1582
1583 listener = &trap_item->listeners_arr[i];
1584 if (!mlxsw_sp_trap_listener_is_valid(listener))
1585 continue;
1586 err = mlxsw_core_trap_register(mlxsw_core, listener, trap_ctx);
1587 if (err)
1588 return err;
1589 }
1590
1591 return 0;
1592 }
1593
mlxsw_sp_trap_fini(struct mlxsw_core * mlxsw_core,const struct devlink_trap * trap,void * trap_ctx)1594 void mlxsw_sp_trap_fini(struct mlxsw_core *mlxsw_core,
1595 const struct devlink_trap *trap, void *trap_ctx)
1596 {
1597 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1598 const struct mlxsw_sp_trap_item *trap_item;
1599 int i;
1600
1601 trap_item = mlxsw_sp_trap_item_lookup(mlxsw_sp, trap->id);
1602 if (WARN_ON(!trap_item))
1603 return;
1604
1605 for (i = MLXSW_SP_TRAP_LISTENERS_MAX - 1; i >= 0; i--) {
1606 const struct mlxsw_listener *listener;
1607
1608 listener = &trap_item->listeners_arr[i];
1609 if (!mlxsw_sp_trap_listener_is_valid(listener))
1610 continue;
1611 mlxsw_core_trap_unregister(mlxsw_core, listener, trap_ctx);
1612 }
1613 }
1614
mlxsw_sp_trap_action_set(struct mlxsw_core * mlxsw_core,const struct devlink_trap * trap,enum devlink_trap_action action,struct netlink_ext_ack * extack)1615 int mlxsw_sp_trap_action_set(struct mlxsw_core *mlxsw_core,
1616 const struct devlink_trap *trap,
1617 enum devlink_trap_action action,
1618 struct netlink_ext_ack *extack)
1619 {
1620 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1621 const struct mlxsw_sp_trap_item *trap_item;
1622 int i;
1623
1624 trap_item = mlxsw_sp_trap_item_lookup(mlxsw_sp, trap->id);
1625 if (WARN_ON(!trap_item))
1626 return -EINVAL;
1627
1628 if (trap_item->is_source) {
1629 NL_SET_ERR_MSG_MOD(extack, "Changing the action of source traps is not supported");
1630 return -EOPNOTSUPP;
1631 }
1632
1633 for (i = 0; i < MLXSW_SP_TRAP_LISTENERS_MAX; i++) {
1634 const struct mlxsw_listener *listener;
1635 bool enabled;
1636 int err;
1637
1638 listener = &trap_item->listeners_arr[i];
1639 if (!mlxsw_sp_trap_listener_is_valid(listener))
1640 continue;
1641
1642 switch (action) {
1643 case DEVLINK_TRAP_ACTION_DROP:
1644 enabled = false;
1645 break;
1646 case DEVLINK_TRAP_ACTION_TRAP:
1647 enabled = true;
1648 break;
1649 default:
1650 return -EINVAL;
1651 }
1652 err = mlxsw_core_trap_state_set(mlxsw_core, listener, enabled);
1653 if (err)
1654 return err;
1655 }
1656
1657 return 0;
1658 }
1659
1660 static int
__mlxsw_sp_trap_group_init(struct mlxsw_core * mlxsw_core,const struct devlink_trap_group * group,u32 policer_id,struct netlink_ext_ack * extack)1661 __mlxsw_sp_trap_group_init(struct mlxsw_core *mlxsw_core,
1662 const struct devlink_trap_group *group,
1663 u32 policer_id, struct netlink_ext_ack *extack)
1664 {
1665 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1666 u16 hw_policer_id = MLXSW_REG_HTGT_INVALID_POLICER;
1667 const struct mlxsw_sp_trap_group_item *group_item;
1668 char htgt_pl[MLXSW_REG_HTGT_LEN];
1669
1670 group_item = mlxsw_sp_trap_group_item_lookup(mlxsw_sp, group->id);
1671 if (WARN_ON(!group_item))
1672 return -EINVAL;
1673
1674 if (group_item->fixed_policer && policer_id != group->init_policer_id) {
1675 NL_SET_ERR_MSG_MOD(extack, "Changing the policer binding of this group is not supported");
1676 return -EOPNOTSUPP;
1677 }
1678
1679 if (policer_id) {
1680 struct mlxsw_sp_trap_policer_item *policer_item;
1681
1682 policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp,
1683 policer_id);
1684 if (WARN_ON(!policer_item))
1685 return -EINVAL;
1686 hw_policer_id = policer_item->hw_id;
1687 }
1688
1689 mlxsw_reg_htgt_pack(htgt_pl, group_item->hw_group_id, hw_policer_id,
1690 group_item->priority, group_item->priority);
1691 return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
1692 }
1693
mlxsw_sp_trap_group_init(struct mlxsw_core * mlxsw_core,const struct devlink_trap_group * group)1694 int mlxsw_sp_trap_group_init(struct mlxsw_core *mlxsw_core,
1695 const struct devlink_trap_group *group)
1696 {
1697 return __mlxsw_sp_trap_group_init(mlxsw_core, group,
1698 group->init_policer_id, NULL);
1699 }
1700
mlxsw_sp_trap_group_set(struct mlxsw_core * mlxsw_core,const struct devlink_trap_group * group,const struct devlink_trap_policer * policer,struct netlink_ext_ack * extack)1701 int mlxsw_sp_trap_group_set(struct mlxsw_core *mlxsw_core,
1702 const struct devlink_trap_group *group,
1703 const struct devlink_trap_policer *policer,
1704 struct netlink_ext_ack *extack)
1705 {
1706 u32 policer_id = policer ? policer->id : 0;
1707
1708 return __mlxsw_sp_trap_group_init(mlxsw_core, group, policer_id,
1709 extack);
1710 }
1711
1712 static int
mlxsw_sp_trap_policer_item_init(struct mlxsw_sp * mlxsw_sp,struct mlxsw_sp_trap_policer_item * policer_item)1713 mlxsw_sp_trap_policer_item_init(struct mlxsw_sp *mlxsw_sp,
1714 struct mlxsw_sp_trap_policer_item *policer_item)
1715 {
1716 struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
1717 u16 hw_id;
1718
1719 /* We should be able to allocate a policer because the number of
1720 * policers we registered with devlink is in according with the number
1721 * of available policers.
1722 */
1723 hw_id = find_first_zero_bit(trap->policers_usage, trap->max_policers);
1724 if (WARN_ON(hw_id == trap->max_policers))
1725 return -ENOBUFS;
1726
1727 __set_bit(hw_id, trap->policers_usage);
1728 policer_item->hw_id = hw_id;
1729
1730 return 0;
1731 }
1732
1733 static void
mlxsw_sp_trap_policer_item_fini(struct mlxsw_sp * mlxsw_sp,struct mlxsw_sp_trap_policer_item * policer_item)1734 mlxsw_sp_trap_policer_item_fini(struct mlxsw_sp *mlxsw_sp,
1735 struct mlxsw_sp_trap_policer_item *policer_item)
1736 {
1737 __clear_bit(policer_item->hw_id, mlxsw_sp->trap->policers_usage);
1738 }
1739
mlxsw_sp_trap_policer_bs(u64 burst,u8 * p_burst_size,struct netlink_ext_ack * extack)1740 static int mlxsw_sp_trap_policer_bs(u64 burst, u8 *p_burst_size,
1741 struct netlink_ext_ack *extack)
1742 {
1743 int bs = fls64(burst) - 1;
1744
1745 if (burst != (BIT_ULL(bs))) {
1746 NL_SET_ERR_MSG_MOD(extack, "Policer burst size is not power of two");
1747 return -EINVAL;
1748 }
1749
1750 *p_burst_size = bs;
1751
1752 return 0;
1753 }
1754
__mlxsw_sp_trap_policer_set(struct mlxsw_sp * mlxsw_sp,u16 hw_id,u64 rate,u64 burst,bool clear_counter,struct netlink_ext_ack * extack)1755 static int __mlxsw_sp_trap_policer_set(struct mlxsw_sp *mlxsw_sp, u16 hw_id,
1756 u64 rate, u64 burst, bool clear_counter,
1757 struct netlink_ext_ack *extack)
1758 {
1759 char qpcr_pl[MLXSW_REG_QPCR_LEN];
1760 u8 burst_size;
1761 int err;
1762
1763 err = mlxsw_sp_trap_policer_bs(burst, &burst_size, extack);
1764 if (err)
1765 return err;
1766
1767 mlxsw_reg_qpcr_pack(qpcr_pl, hw_id, MLXSW_REG_QPCR_IR_UNITS_M, false,
1768 rate, burst_size);
1769 mlxsw_reg_qpcr_clear_counter_set(qpcr_pl, clear_counter);
1770 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qpcr), qpcr_pl);
1771 }
1772
mlxsw_sp_trap_policer_init(struct mlxsw_core * mlxsw_core,const struct devlink_trap_policer * policer)1773 int mlxsw_sp_trap_policer_init(struct mlxsw_core *mlxsw_core,
1774 const struct devlink_trap_policer *policer)
1775 {
1776 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1777 struct mlxsw_sp_trap_policer_item *policer_item;
1778 int err;
1779
1780 policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer->id);
1781 if (WARN_ON(!policer_item))
1782 return -EINVAL;
1783
1784 err = mlxsw_sp_trap_policer_item_init(mlxsw_sp, policer_item);
1785 if (err)
1786 return err;
1787
1788 err = __mlxsw_sp_trap_policer_set(mlxsw_sp, policer_item->hw_id,
1789 policer->init_rate,
1790 policer->init_burst, true, NULL);
1791 if (err)
1792 goto err_trap_policer_set;
1793
1794 return 0;
1795
1796 err_trap_policer_set:
1797 mlxsw_sp_trap_policer_item_fini(mlxsw_sp, policer_item);
1798 return err;
1799 }
1800
mlxsw_sp_trap_policer_fini(struct mlxsw_core * mlxsw_core,const struct devlink_trap_policer * policer)1801 void mlxsw_sp_trap_policer_fini(struct mlxsw_core *mlxsw_core,
1802 const struct devlink_trap_policer *policer)
1803 {
1804 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1805 struct mlxsw_sp_trap_policer_item *policer_item;
1806
1807 policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer->id);
1808 if (WARN_ON(!policer_item))
1809 return;
1810
1811 mlxsw_sp_trap_policer_item_fini(mlxsw_sp, policer_item);
1812 }
1813
mlxsw_sp_trap_policer_set(struct mlxsw_core * mlxsw_core,const struct devlink_trap_policer * policer,u64 rate,u64 burst,struct netlink_ext_ack * extack)1814 int mlxsw_sp_trap_policer_set(struct mlxsw_core *mlxsw_core,
1815 const struct devlink_trap_policer *policer,
1816 u64 rate, u64 burst,
1817 struct netlink_ext_ack *extack)
1818 {
1819 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1820 struct mlxsw_sp_trap_policer_item *policer_item;
1821
1822 policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer->id);
1823 if (WARN_ON(!policer_item))
1824 return -EINVAL;
1825
1826 return __mlxsw_sp_trap_policer_set(mlxsw_sp, policer_item->hw_id,
1827 rate, burst, false, extack);
1828 }
1829
1830 int
mlxsw_sp_trap_policer_counter_get(struct mlxsw_core * mlxsw_core,const struct devlink_trap_policer * policer,u64 * p_drops)1831 mlxsw_sp_trap_policer_counter_get(struct mlxsw_core *mlxsw_core,
1832 const struct devlink_trap_policer *policer,
1833 u64 *p_drops)
1834 {
1835 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1836 struct mlxsw_sp_trap_policer_item *policer_item;
1837 char qpcr_pl[MLXSW_REG_QPCR_LEN];
1838 int err;
1839
1840 policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer->id);
1841 if (WARN_ON(!policer_item))
1842 return -EINVAL;
1843
1844 mlxsw_reg_qpcr_pack(qpcr_pl, policer_item->hw_id,
1845 MLXSW_REG_QPCR_IR_UNITS_M, false, 0, 0);
1846 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(qpcr), qpcr_pl);
1847 if (err)
1848 return err;
1849
1850 *p_drops = mlxsw_reg_qpcr_violate_count_get(qpcr_pl);
1851
1852 return 0;
1853 }
1854
mlxsw_sp_trap_group_policer_hw_id_get(struct mlxsw_sp * mlxsw_sp,u16 id,bool * p_enabled,u16 * p_hw_id)1855 int mlxsw_sp_trap_group_policer_hw_id_get(struct mlxsw_sp *mlxsw_sp, u16 id,
1856 bool *p_enabled, u16 *p_hw_id)
1857 {
1858 struct mlxsw_sp_trap_policer_item *pol_item;
1859 struct mlxsw_sp_trap_group_item *gr_item;
1860 u32 pol_id;
1861
1862 gr_item = mlxsw_sp_trap_group_item_lookup(mlxsw_sp, id);
1863 if (!gr_item)
1864 return -ENOENT;
1865
1866 pol_id = gr_item->group.init_policer_id;
1867 if (!pol_id) {
1868 *p_enabled = false;
1869 return 0;
1870 }
1871
1872 pol_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, pol_id);
1873 if (WARN_ON(!pol_item))
1874 return -ENOENT;
1875
1876 *p_enabled = true;
1877 *p_hw_id = pol_item->hw_id;
1878 return 0;
1879 }
1880
1881 static const struct mlxsw_sp_trap_group_item
1882 mlxsw_sp1_trap_group_items_arr[] = {
1883 {
1884 .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_SAMPLE, 0),
1885 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE,
1886 .priority = 0,
1887 },
1888 };
1889
1890 static const struct mlxsw_sp_trap_item
1891 mlxsw_sp1_trap_items_arr[] = {
1892 {
1893 .trap = MLXSW_SP_TRAP_CONTROL(FLOW_ACTION_SAMPLE, ACL_SAMPLE,
1894 MIRROR),
1895 .listeners_arr = {
1896 MLXSW_RXL(mlxsw_sp_rx_sample_listener, PKT_SAMPLE,
1897 MIRROR_TO_CPU, false, SP_PKT_SAMPLE, DISCARD),
1898 },
1899 },
1900 };
1901
1902 static int
mlxsw_sp1_trap_groups_init(struct mlxsw_sp * mlxsw_sp,const struct mlxsw_sp_trap_group_item ** arr,size_t * p_groups_count)1903 mlxsw_sp1_trap_groups_init(struct mlxsw_sp *mlxsw_sp,
1904 const struct mlxsw_sp_trap_group_item **arr,
1905 size_t *p_groups_count)
1906 {
1907 *arr = mlxsw_sp1_trap_group_items_arr;
1908 *p_groups_count = ARRAY_SIZE(mlxsw_sp1_trap_group_items_arr);
1909
1910 return 0;
1911 }
1912
mlxsw_sp1_traps_init(struct mlxsw_sp * mlxsw_sp,const struct mlxsw_sp_trap_item ** arr,size_t * p_traps_count)1913 static int mlxsw_sp1_traps_init(struct mlxsw_sp *mlxsw_sp,
1914 const struct mlxsw_sp_trap_item **arr,
1915 size_t *p_traps_count)
1916 {
1917 *arr = mlxsw_sp1_trap_items_arr;
1918 *p_traps_count = ARRAY_SIZE(mlxsw_sp1_trap_items_arr);
1919
1920 return 0;
1921 }
1922
1923 const struct mlxsw_sp_trap_ops mlxsw_sp1_trap_ops = {
1924 .groups_init = mlxsw_sp1_trap_groups_init,
1925 .traps_init = mlxsw_sp1_traps_init,
1926 };
1927
1928 static const struct mlxsw_sp_trap_group_item
1929 mlxsw_sp2_trap_group_items_arr[] = {
1930 {
1931 .group = DEVLINK_TRAP_GROUP_GENERIC(BUFFER_DROPS, 20),
1932 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_BUFFER_DISCARDS,
1933 .priority = 0,
1934 .fixed_policer = true,
1935 },
1936 {
1937 .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_SAMPLE, 0),
1938 .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE,
1939 .priority = 0,
1940 .fixed_policer = true,
1941 },
1942 };
1943
1944 static const struct mlxsw_sp_trap_item
1945 mlxsw_sp2_trap_items_arr[] = {
1946 {
1947 .trap = MLXSW_SP_TRAP_BUFFER_DROP(EARLY_DROP),
1948 .listeners_arr = {
1949 MLXSW_SP_RXL_BUFFER_DISCARD(INGRESS_WRED),
1950 },
1951 .is_source = true,
1952 },
1953 {
1954 .trap = MLXSW_SP_TRAP_CONTROL(FLOW_ACTION_SAMPLE, ACL_SAMPLE,
1955 MIRROR),
1956 .listeners_arr = {
1957 MLXSW_RXL_MIRROR(mlxsw_sp_rx_sample_listener, 1,
1958 SP_PKT_SAMPLE,
1959 MLXSW_SP_MIRROR_REASON_INGRESS),
1960 MLXSW_RXL_MIRROR(mlxsw_sp_rx_sample_tx_listener, 1,
1961 SP_PKT_SAMPLE,
1962 MLXSW_SP_MIRROR_REASON_EGRESS),
1963 MLXSW_RXL_MIRROR(mlxsw_sp_rx_sample_acl_listener, 1,
1964 SP_PKT_SAMPLE,
1965 MLXSW_SP_MIRROR_REASON_POLICY_ENGINE),
1966 },
1967 },
1968 };
1969
1970 static int
mlxsw_sp2_trap_groups_init(struct mlxsw_sp * mlxsw_sp,const struct mlxsw_sp_trap_group_item ** arr,size_t * p_groups_count)1971 mlxsw_sp2_trap_groups_init(struct mlxsw_sp *mlxsw_sp,
1972 const struct mlxsw_sp_trap_group_item **arr,
1973 size_t *p_groups_count)
1974 {
1975 *arr = mlxsw_sp2_trap_group_items_arr;
1976 *p_groups_count = ARRAY_SIZE(mlxsw_sp2_trap_group_items_arr);
1977
1978 return 0;
1979 }
1980
mlxsw_sp2_traps_init(struct mlxsw_sp * mlxsw_sp,const struct mlxsw_sp_trap_item ** arr,size_t * p_traps_count)1981 static int mlxsw_sp2_traps_init(struct mlxsw_sp *mlxsw_sp,
1982 const struct mlxsw_sp_trap_item **arr,
1983 size_t *p_traps_count)
1984 {
1985 *arr = mlxsw_sp2_trap_items_arr;
1986 *p_traps_count = ARRAY_SIZE(mlxsw_sp2_trap_items_arr);
1987
1988 return 0;
1989 }
1990
1991 const struct mlxsw_sp_trap_ops mlxsw_sp2_trap_ops = {
1992 .groups_init = mlxsw_sp2_trap_groups_init,
1993 .traps_init = mlxsw_sp2_traps_init,
1994 };
1995