1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2019 Mellanox Technologies. */
6 #include "en/devlink.h"
9 /* Keep this string array consistent with the MLX5E_SQ_STATE_* enums in en.h */
10 static const char * const sq_sw_state_type_name[] = {
11 [MLX5E_SQ_STATE_ENABLED] = "enabled",
12 [MLX5E_SQ_STATE_MPWQE] = "mpwqe",
13 [MLX5E_SQ_STATE_RECOVERING] = "recovering",
14 [MLX5E_SQ_STATE_IPSEC] = "ipsec",
15 [MLX5E_SQ_STATE_DIM] = "dim",
16 [MLX5E_SQ_STATE_VLAN_NEED_L2_INLINE] = "vlan_need_l2_inline",
17 [MLX5E_SQ_STATE_PENDING_XSK_TX] = "pending_xsk_tx",
18 [MLX5E_SQ_STATE_PENDING_TLS_RX_RESYNC] = "pending_tls_rx_resync",
19 [MLX5E_SQ_STATE_XDP_MULTIBUF] = "xdp_multibuf",
22 static int mlx5e_wait_for_sq_flush(struct mlx5e_txqsq *sq)
24 struct mlx5_core_dev *dev = sq->mdev;
25 unsigned long exp_time;
27 exp_time = jiffies + msecs_to_jiffies(mlx5_tout_ms(dev, FLUSH_ON_ERROR));
29 while (time_before(jiffies, exp_time)) {
36 netdev_err(sq->netdev,
37 "Wait for SQ 0x%x flush timeout (sq cc = 0x%x, sq pc = 0x%x)\n",
38 sq->sqn, sq->cc, sq->pc);
43 static void mlx5e_reset_txqsq_cc_pc(struct mlx5e_txqsq *sq)
45 WARN_ONCE(sq->cc != sq->pc,
46 "SQ 0x%x: cc (0x%x) != pc (0x%x)\n",
47 sq->sqn, sq->cc, sq->pc);
53 static void mlx5e_health_sq_put_sw_state(struct devlink_fmsg *fmsg, struct mlx5e_txqsq *sq)
57 BUILD_BUG_ON_MSG(ARRAY_SIZE(sq_sw_state_type_name) != MLX5E_NUM_SQ_STATES,
58 "sq_sw_state_type_name string array must be consistent with MLX5E_SQ_STATE_* enum in en.h");
59 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "SW State");
61 for (i = 0; i < ARRAY_SIZE(sq_sw_state_type_name); ++i)
62 devlink_fmsg_u32_pair_put(fmsg, sq_sw_state_type_name[i],
63 test_bit(i, &sq->state));
65 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
68 static int mlx5e_tx_reporter_err_cqe_recover(void *ctx)
70 struct mlx5_core_dev *mdev;
71 struct net_device *dev;
72 struct mlx5e_txqsq *sq;
80 if (!test_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state))
83 err = mlx5_core_query_sq_state(mdev, sq->sqn, &state);
85 netdev_err(dev, "Failed to query SQ 0x%x state. err = %d\n",
90 if (state != MLX5_SQC_STATE_ERR)
93 mlx5e_tx_disable_queue(sq->txq);
95 err = mlx5e_wait_for_sq_flush(sq);
99 /* At this point, no new packets will arrive from the stack as TXQ is
100 * marked with QUEUE_STATE_DRV_XOFF. In addition, NAPI cleared all
101 * pending WQEs. SQ can safely reset the SQ.
104 err = mlx5e_health_sq_to_ready(mdev, dev, sq->sqn);
108 mlx5e_reset_txqsq_cc_pc(sq);
109 sq->stats->recover++;
110 clear_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state);
111 mlx5e_activate_txqsq(sq);
113 mlx5e_trigger_napi_icosq(sq->channel);
115 mlx5e_trigger_napi_sched(sq->cq.napi);
119 clear_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state);
123 struct mlx5e_tx_timeout_ctx {
124 struct mlx5e_txqsq *sq;
128 static int mlx5e_tx_reporter_timeout_recover(void *ctx)
130 struct mlx5e_tx_timeout_ctx *to_ctx;
131 struct mlx5e_priv *priv;
132 struct mlx5_eq_comp *eq;
133 struct mlx5e_txqsq *sq;
140 err = mlx5e_health_channel_eq_recover(sq->netdev, eq, sq->cq.ch_stats);
142 to_ctx->status = 0; /* this sq recovered */
146 err = mlx5e_safe_reopen_channels(priv);
148 to_ctx->status = 1; /* all channels recovered */
152 to_ctx->status = err;
153 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
154 netdev_err(priv->netdev,
155 "mlx5e_safe_reopen_channels failed recovering from a tx_timeout, err(%d).\n",
161 static int mlx5e_tx_reporter_ptpsq_unhealthy_recover(void *ctx)
163 struct mlx5e_ptpsq *ptpsq = ctx;
164 struct mlx5e_channels *chs;
165 struct net_device *netdev;
166 struct mlx5e_priv *priv;
170 if (!test_bit(MLX5E_SQ_STATE_RECOVERING, &ptpsq->txqsq.state))
173 priv = ptpsq->txqsq.priv;
175 mutex_lock(&priv->state_lock);
176 chs = &priv->channels;
177 netdev = priv->netdev;
179 carrier_ok = netif_carrier_ok(netdev);
180 netif_carrier_off(netdev);
182 mlx5e_deactivate_priv_channels(priv);
184 mlx5e_ptp_close(chs->ptp);
185 err = mlx5e_ptp_open(priv, &chs->params, chs->c[0]->lag_port, &chs->ptp);
187 mlx5e_activate_priv_channels(priv);
189 /* return carrier back if needed */
191 netif_carrier_on(netdev);
193 mutex_unlock(&priv->state_lock);
198 /* state lock cannot be grabbed within this function.
199 * It can cause a dead lock or a read-after-free.
201 static int mlx5e_tx_reporter_recover_from_ctx(struct mlx5e_err_ctx *err_ctx)
203 return err_ctx->recover(err_ctx->ctx);
206 static int mlx5e_tx_reporter_recover(struct devlink_health_reporter *reporter,
208 struct netlink_ext_ack *extack)
210 struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
211 struct mlx5e_err_ctx *err_ctx = context;
213 return err_ctx ? mlx5e_tx_reporter_recover_from_ctx(err_ctx) :
214 mlx5e_health_recover_channels(priv);
218 mlx5e_tx_reporter_build_diagnose_output_sq_common(struct devlink_fmsg *fmsg,
219 struct mlx5e_txqsq *sq, int tc)
221 bool stopped = netif_xmit_stopped(sq->txq);
225 devlink_fmsg_u32_pair_put(fmsg, "tc", tc);
226 devlink_fmsg_u32_pair_put(fmsg, "txq ix", sq->txq_ix);
227 devlink_fmsg_u32_pair_put(fmsg, "sqn", sq->sqn);
229 err = mlx5_core_query_sq_state(sq->mdev, sq->sqn, &state);
231 devlink_fmsg_u8_pair_put(fmsg, "HW state", state);
233 devlink_fmsg_bool_pair_put(fmsg, "stopped", stopped);
234 devlink_fmsg_u32_pair_put(fmsg, "cc", sq->cc);
235 devlink_fmsg_u32_pair_put(fmsg, "pc", sq->pc);
236 mlx5e_health_sq_put_sw_state(fmsg, sq);
237 mlx5e_health_cq_diag_fmsg(&sq->cq, fmsg);
238 mlx5e_health_eq_diag_fmsg(sq->cq.mcq.eq, fmsg);
242 mlx5e_tx_reporter_build_diagnose_output(struct devlink_fmsg *fmsg,
243 struct mlx5e_txqsq *sq, int tc)
245 devlink_fmsg_obj_nest_start(fmsg);
246 devlink_fmsg_u32_pair_put(fmsg, "channel ix", sq->ch_ix);
247 mlx5e_tx_reporter_build_diagnose_output_sq_common(fmsg, sq, tc);
248 devlink_fmsg_obj_nest_end(fmsg);
252 mlx5e_tx_reporter_build_diagnose_output_ptpsq(struct devlink_fmsg *fmsg,
253 struct mlx5e_ptpsq *ptpsq, int tc)
255 devlink_fmsg_obj_nest_start(fmsg);
256 devlink_fmsg_string_pair_put(fmsg, "channel", "ptp");
257 mlx5e_tx_reporter_build_diagnose_output_sq_common(fmsg, &ptpsq->txqsq, tc);
258 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "Port TS");
259 mlx5e_health_cq_diag_fmsg(&ptpsq->ts_cq, fmsg);
260 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
261 devlink_fmsg_obj_nest_end(fmsg);
265 mlx5e_tx_reporter_diagnose_generic_txqsq(struct devlink_fmsg *fmsg,
266 struct mlx5e_txqsq *txqsq)
268 bool real_time = mlx5_is_real_time_sq(txqsq->mdev);
269 u32 sq_sz = mlx5_wq_cyc_get_size(&txqsq->wq);
270 u32 sq_stride = MLX5_SEND_WQE_BB;
272 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "SQ");
273 devlink_fmsg_u64_pair_put(fmsg, "stride size", sq_stride);
274 devlink_fmsg_u32_pair_put(fmsg, "size", sq_sz);
275 devlink_fmsg_string_pair_put(fmsg, "ts_format", real_time ? "RT" : "FRC");
276 mlx5e_health_cq_common_diag_fmsg(&txqsq->cq, fmsg);
277 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
281 mlx5e_tx_reporter_diagnose_generic_tx_port_ts(struct devlink_fmsg *fmsg,
282 struct mlx5e_ptpsq *ptpsq)
284 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "Port TS");
285 mlx5e_health_cq_common_diag_fmsg(&ptpsq->ts_cq, fmsg);
286 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
290 mlx5e_tx_reporter_diagnose_common_config(struct devlink_health_reporter *reporter,
291 struct devlink_fmsg *fmsg)
293 struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
294 struct mlx5e_txqsq *generic_sq = priv->txq2sq[0];
295 struct mlx5e_ptp *ptp_ch = priv->channels.ptp;
296 struct mlx5e_ptpsq *generic_ptpsq;
298 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "Common Config");
299 mlx5e_tx_reporter_diagnose_generic_txqsq(fmsg, generic_sq);
301 if (!ptp_ch || !test_bit(MLX5E_PTP_STATE_TX, ptp_ch->state))
304 generic_ptpsq = &ptp_ch->ptpsq[0];
305 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "PTP");
306 mlx5e_tx_reporter_diagnose_generic_txqsq(fmsg, &generic_ptpsq->txqsq);
307 mlx5e_tx_reporter_diagnose_generic_tx_port_ts(fmsg, generic_ptpsq);
308 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
310 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
313 static int mlx5e_tx_reporter_diagnose(struct devlink_health_reporter *reporter,
314 struct devlink_fmsg *fmsg,
315 struct netlink_ext_ack *extack)
317 struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
318 struct mlx5e_ptp *ptp_ch = priv->channels.ptp;
322 mutex_lock(&priv->state_lock);
324 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
327 mlx5e_tx_reporter_diagnose_common_config(reporter, fmsg);
328 devlink_fmsg_arr_pair_nest_start(fmsg, "SQs");
330 for (i = 0; i < priv->channels.num; i++) {
331 struct mlx5e_channel *c = priv->channels.c[i];
333 for (tc = 0; tc < mlx5e_get_dcb_num_tc(&priv->channels.params); tc++) {
334 struct mlx5e_txqsq *sq = &c->sq[tc];
336 mlx5e_tx_reporter_build_diagnose_output(fmsg, sq, tc);
340 if (!ptp_ch || !test_bit(MLX5E_PTP_STATE_TX, ptp_ch->state))
343 for (tc = 0; tc < mlx5e_get_dcb_num_tc(&priv->channels.params); tc++)
344 mlx5e_tx_reporter_build_diagnose_output_ptpsq(fmsg,
349 devlink_fmsg_arr_pair_nest_end(fmsg);
351 mutex_unlock(&priv->state_lock);
355 static int mlx5e_tx_reporter_dump_sq(struct mlx5e_priv *priv, struct devlink_fmsg *fmsg,
358 struct mlx5_rsc_key key = {};
359 struct mlx5e_txqsq *sq = ctx;
361 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
364 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "SX Slice");
365 key.size = PAGE_SIZE;
366 key.rsc = MLX5_SGMT_TYPE_SX_SLICE_ALL;
367 mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
368 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
370 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "SQ");
371 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "QPC");
372 key.rsc = MLX5_SGMT_TYPE_FULL_QPC;
373 key.index1 = sq->sqn;
375 mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
376 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
378 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "send_buff");
379 key.rsc = MLX5_SGMT_TYPE_SND_BUFF;
380 key.num_of_obj2 = MLX5_RSC_DUMP_ALL;
381 mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
382 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
384 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
389 static int mlx5e_tx_reporter_timeout_dump(struct mlx5e_priv *priv, struct devlink_fmsg *fmsg,
392 struct mlx5e_tx_timeout_ctx *to_ctx = ctx;
394 return mlx5e_tx_reporter_dump_sq(priv, fmsg, to_ctx->sq);
397 static int mlx5e_tx_reporter_ptpsq_unhealthy_dump(struct mlx5e_priv *priv,
398 struct devlink_fmsg *fmsg,
401 struct mlx5e_ptpsq *ptpsq = ctx;
403 return mlx5e_tx_reporter_dump_sq(priv, fmsg, &ptpsq->txqsq);
406 static int mlx5e_tx_reporter_dump_all_sqs(struct mlx5e_priv *priv,
407 struct devlink_fmsg *fmsg)
409 struct mlx5e_ptp *ptp_ch = priv->channels.ptp;
410 struct mlx5_rsc_key key = {};
413 if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
416 mlx5e_health_fmsg_named_obj_nest_start(fmsg, "SX Slice");
417 key.size = PAGE_SIZE;
418 key.rsc = MLX5_SGMT_TYPE_SX_SLICE_ALL;
419 mlx5e_health_rsc_fmsg_dump(priv, &key, fmsg);
420 mlx5e_health_fmsg_named_obj_nest_end(fmsg);
421 devlink_fmsg_arr_pair_nest_start(fmsg, "SQs");
423 for (i = 0; i < priv->channels.num; i++) {
424 struct mlx5e_channel *c = priv->channels.c[i];
426 for (tc = 0; tc < mlx5e_get_dcb_num_tc(&priv->channels.params); tc++) {
427 struct mlx5e_txqsq *sq = &c->sq[tc];
429 mlx5e_health_queue_dump(priv, fmsg, sq->sqn, "SQ");
433 if (ptp_ch && test_bit(MLX5E_PTP_STATE_TX, ptp_ch->state)) {
434 for (tc = 0; tc < mlx5e_get_dcb_num_tc(&priv->channels.params); tc++) {
435 struct mlx5e_txqsq *sq = &ptp_ch->ptpsq[tc].txqsq;
437 mlx5e_health_queue_dump(priv, fmsg, sq->sqn, "PTP SQ");
441 devlink_fmsg_arr_pair_nest_end(fmsg);
445 static int mlx5e_tx_reporter_dump_from_ctx(struct mlx5e_priv *priv,
446 struct mlx5e_err_ctx *err_ctx,
447 struct devlink_fmsg *fmsg)
449 return err_ctx->dump(priv, fmsg, err_ctx->ctx);
452 static int mlx5e_tx_reporter_dump(struct devlink_health_reporter *reporter,
453 struct devlink_fmsg *fmsg, void *context,
454 struct netlink_ext_ack *extack)
456 struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
457 struct mlx5e_err_ctx *err_ctx = context;
459 return err_ctx ? mlx5e_tx_reporter_dump_from_ctx(priv, err_ctx, fmsg) :
460 mlx5e_tx_reporter_dump_all_sqs(priv, fmsg);
463 void mlx5e_reporter_tx_err_cqe(struct mlx5e_txqsq *sq)
465 char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
466 struct mlx5e_priv *priv = sq->priv;
467 struct mlx5e_err_ctx err_ctx = {};
470 err_ctx.recover = mlx5e_tx_reporter_err_cqe_recover;
471 err_ctx.dump = mlx5e_tx_reporter_dump_sq;
472 snprintf(err_str, sizeof(err_str), "ERR CQE on SQ: 0x%x", sq->sqn);
474 mlx5e_health_report(priv, priv->tx_reporter, err_str, &err_ctx);
477 int mlx5e_reporter_tx_timeout(struct mlx5e_txqsq *sq)
479 char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
480 struct mlx5e_tx_timeout_ctx to_ctx = {};
481 struct mlx5e_priv *priv = sq->priv;
482 struct mlx5e_err_ctx err_ctx = {};
485 err_ctx.ctx = &to_ctx;
486 err_ctx.recover = mlx5e_tx_reporter_timeout_recover;
487 err_ctx.dump = mlx5e_tx_reporter_timeout_dump;
488 snprintf(err_str, sizeof(err_str),
489 "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x, usecs since last trans: %u",
490 sq->ch_ix, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc,
491 jiffies_to_usecs(jiffies - READ_ONCE(sq->txq->trans_start)));
493 mlx5e_health_report(priv, priv->tx_reporter, err_str, &err_ctx);
494 return to_ctx.status;
497 void mlx5e_reporter_tx_ptpsq_unhealthy(struct mlx5e_ptpsq *ptpsq)
499 struct mlx5e_ptp_metadata_map *map = &ptpsq->metadata_map;
500 char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
501 struct mlx5e_txqsq *txqsq = &ptpsq->txqsq;
502 struct mlx5e_cq *ts_cq = &ptpsq->ts_cq;
503 struct mlx5e_priv *priv = txqsq->priv;
504 struct mlx5e_err_ctx err_ctx = {};
507 err_ctx.recover = mlx5e_tx_reporter_ptpsq_unhealthy_recover;
508 err_ctx.dump = mlx5e_tx_reporter_ptpsq_unhealthy_dump;
509 snprintf(err_str, sizeof(err_str),
510 "Unhealthy TX port TS queue: %d, SQ: 0x%x, CQ: 0x%x, Undelivered CQEs: %u Map Capacity: %u",
511 txqsq->ch_ix, txqsq->sqn, ts_cq->mcq.cqn, map->undelivered_counter, map->capacity);
513 mlx5e_health_report(priv, priv->tx_reporter, err_str, &err_ctx);
516 static const struct devlink_health_reporter_ops mlx5_tx_reporter_ops = {
518 .recover = mlx5e_tx_reporter_recover,
519 .diagnose = mlx5e_tx_reporter_diagnose,
520 .dump = mlx5e_tx_reporter_dump,
523 #define MLX5_REPORTER_TX_GRACEFUL_PERIOD 500
525 void mlx5e_reporter_tx_create(struct mlx5e_priv *priv)
527 struct devlink_health_reporter *reporter;
529 reporter = devlink_port_health_reporter_create(priv->netdev->devlink_port,
530 &mlx5_tx_reporter_ops,
531 MLX5_REPORTER_TX_GRACEFUL_PERIOD, priv);
532 if (IS_ERR(reporter)) {
533 netdev_warn(priv->netdev,
534 "Failed to create tx reporter, err = %ld\n",
538 priv->tx_reporter = reporter;
541 void mlx5e_reporter_tx_destroy(struct mlx5e_priv *priv)
543 if (!priv->tx_reporter)
546 devlink_health_reporter_destroy(priv->tx_reporter);
547 priv->tx_reporter = NULL;