spectrum_trap.c 53 KB

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