1 // SPDX-License-Identifier: BSD-3-Clause
3 * Copyright 2018 Mellanox Technologies, Ltd
8 #include <rte_malloc.h>
10 #include <rte_mtr_driver.h>
12 #include <mlx5_devx_cmds.h>
13 #include <mlx5_malloc.h>
16 #include "mlx5_flow.h"
19 * Create the meter action.
22 * Pointer to mlx5_priv.
24 * Pointer to flow meter to be converted.
27 * Pointer to the meter action on success, NULL otherwise.
30 mlx5_flow_meter_action_create(struct mlx5_priv *priv,
31 struct mlx5_flow_meter *fm)
33 #ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
34 struct mlx5dv_dr_flow_meter_attr mtr_init;
35 void *attr = fm->mfts->fmp;
36 struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm =
37 &fm->profile->srtcm_prm;
39 fm->mfts->fmp_size = MLX5_ST_SZ_BYTES(flow_meter_parameters);
40 memset(attr, 0, fm->mfts->fmp_size);
41 MLX5_SET(flow_meter_parameters, attr, valid, 1);
42 MLX5_SET(flow_meter_parameters, attr, bucket_overflow, 1);
43 MLX5_SET(flow_meter_parameters, attr,
44 start_color, MLX5_FLOW_COLOR_GREEN);
45 MLX5_SET(flow_meter_parameters, attr, both_buckets_on_green, 0);
46 MLX5_SET(flow_meter_parameters,
47 attr, cbs_exponent, srtcm->cbs_exponent);
48 MLX5_SET(flow_meter_parameters,
49 attr, cbs_mantissa, srtcm->cbs_mantissa);
50 MLX5_SET(flow_meter_parameters,
51 attr, cir_exponent, srtcm->cir_exponent);
52 MLX5_SET(flow_meter_parameters,
53 attr, cir_mantissa, srtcm->cir_mantissa);
54 MLX5_SET(flow_meter_parameters,
55 attr, ebs_exponent, srtcm->ebs_exponent);
56 MLX5_SET(flow_meter_parameters,
57 attr, ebs_mantissa, srtcm->ebs_mantissa);
59 fm->transfer ? fm->mfts->transfer.tbl->obj :
60 fm->egress ? fm->mfts->egress.tbl->obj :
61 fm->mfts->ingress.tbl->obj;
62 mtr_init.reg_c_index = priv->mtr_color_reg - REG_C_0;
63 mtr_init.flow_meter_parameter = fm->mfts->fmp;
64 mtr_init.flow_meter_parameter_sz = fm->mfts->fmp_size;
65 mtr_init.active = fm->active_state;
66 return mlx5_glue->dv_create_flow_action_meter(&mtr_init);
75 * Find meter profile by id.
78 * Pointer to mlx5_priv.
79 * @param meter_profile_id
83 * Pointer to the profile found on success, NULL otherwise.
85 static struct mlx5_flow_meter_profile *
86 mlx5_flow_meter_profile_find(struct mlx5_priv *priv, uint32_t meter_profile_id)
88 struct mlx5_mtr_profiles *fmps = &priv->flow_meter_profiles;
89 struct mlx5_flow_meter_profile *fmp;
91 TAILQ_FOREACH(fmp, fmps, next)
92 if (meter_profile_id == fmp->meter_profile_id)
98 * Validate the MTR profile.
101 * Pointer to Ethernet device.
102 * @param[in] meter_profile_id
105 * Pointer to meter profile detail.
107 * Pointer to the error structure.
110 * 0 on success, a negative errno value otherwise and rte_errno is set.
113 mlx5_flow_meter_profile_validate(struct rte_eth_dev *dev,
114 uint32_t meter_profile_id,
115 struct rte_mtr_meter_profile *profile,
116 struct rte_mtr_error *error)
118 struct mlx5_priv *priv = dev->data->dev_private;
119 struct mlx5_flow_meter_profile *fmp;
121 /* Profile must not be NULL. */
123 return -rte_mtr_error_set(error, EINVAL,
124 RTE_MTR_ERROR_TYPE_METER_PROFILE,
125 NULL, "Meter profile is null.");
126 /* Meter profile ID must be valid. */
127 if (meter_profile_id == UINT32_MAX)
128 return -rte_mtr_error_set(error, EINVAL,
129 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
130 NULL, "Meter profile id not valid.");
131 /* Meter profile must not exist. */
132 fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
134 return -rte_mtr_error_set(error, EEXIST,
135 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
137 "Meter profile already exists.");
138 if (profile->alg == RTE_MTR_SRTCM_RFC2697) {
139 if (priv->config.hca_attr.qos.srtcm_sup) {
140 /* Verify support for flow meter parameters. */
141 if (profile->srtcm_rfc2697.cir > 0 &&
142 profile->srtcm_rfc2697.cir <= MLX5_SRTCM_CIR_MAX &&
143 profile->srtcm_rfc2697.cbs > 0 &&
144 profile->srtcm_rfc2697.cbs <= MLX5_SRTCM_CBS_MAX &&
145 profile->srtcm_rfc2697.ebs <= MLX5_SRTCM_EBS_MAX)
148 return -rte_mtr_error_set
150 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
152 profile->srtcm_rfc2697.ebs ?
153 "Metering value ebs must be 0." :
154 "Invalid metering parameters.");
157 return -rte_mtr_error_set(error, ENOTSUP,
158 RTE_MTR_ERROR_TYPE_METER_PROFILE,
159 NULL, "Metering algorithm not supported.");
163 * Calculate mantissa and exponent for cir.
166 * Value to be calculated.
168 * Pointer to the mantissa.
170 * Pointer to the exp.
173 mlx5_flow_meter_cir_man_exp_calc(int64_t cir, uint8_t *man, uint8_t *exp)
176 int64_t delta = INT64_MAX;
181 for (m = 0; m <= 0xFF; m++) { /* man width 8 bit */
182 for (e = 0; e <= 0x1F; e++) { /* exp width 5bit */
183 _cir = (1000000000ULL * m) >> e;
184 if (llabs(cir - _cir) <= delta) {
185 delta = llabs(cir - _cir);
196 * Calculate mantissa and exponent for xbs.
199 * Value to be calculated.
201 * Pointer to the mantissa.
203 * Pointer to the exp.
206 mlx5_flow_meter_xbs_man_exp_calc(uint64_t xbs, uint8_t *man, uint8_t *exp)
211 /* Special case xbs == 0 ? both exp and matissa are 0. */
217 /* xbs = xbs_mantissa * 2^xbs_exponent */
218 _man = frexp(xbs, &_exp);
219 _man = _man * pow(2, MLX5_MAN_WIDTH);
220 _exp = _exp - MLX5_MAN_WIDTH;
221 *man = (uint8_t)ceil(_man);
226 * Fill the prm meter parameter.
229 * Pointer to meter profie to be converted.
231 * Pointer to the error structure.
234 * 0 on success, a negative errno value otherwise and rte_errno is set.
237 mlx5_flow_meter_param_fill(struct mlx5_flow_meter_profile *fmp,
238 struct rte_mtr_error *error)
240 struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm = &fmp->srtcm_prm;
243 if (fmp->profile.alg != RTE_MTR_SRTCM_RFC2697)
244 return -rte_mtr_error_set(error, ENOTSUP,
245 RTE_MTR_ERROR_TYPE_METER_PROFILE,
246 NULL, "Metering algorithm not supported.");
247 /* cbs = cbs_mantissa * 2^cbs_exponent */
248 mlx5_flow_meter_xbs_man_exp_calc(fmp->profile.srtcm_rfc2697.cbs,
250 srtcm->cbs_mantissa = man;
251 srtcm->cbs_exponent = exp;
252 /* Check if cbs mantissa is too large. */
253 if (srtcm->cbs_exponent != exp)
254 return -rte_mtr_error_set(error, EINVAL,
255 RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
256 "Metering profile parameter cbs is"
258 /* ebs = ebs_mantissa * 2^ebs_exponent */
259 mlx5_flow_meter_xbs_man_exp_calc(fmp->profile.srtcm_rfc2697.ebs,
261 srtcm->ebs_mantissa = man;
262 srtcm->ebs_exponent = exp;
263 /* Check if ebs mantissa is too large. */
264 if (srtcm->ebs_exponent != exp)
265 return -rte_mtr_error_set(error, EINVAL,
266 RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
267 "Metering profile parameter ebs is"
269 /* cir = 8G * cir_mantissa * 1/(2^cir_exponent)) Bytes/Sec */
270 mlx5_flow_meter_cir_man_exp_calc(fmp->profile.srtcm_rfc2697.cir,
272 srtcm->cir_mantissa = man;
273 srtcm->cir_exponent = exp;
274 /* Check if cir mantissa is too large. */
275 if (srtcm->cir_exponent != exp)
276 return -rte_mtr_error_set(error, EINVAL,
277 RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
278 "Metering profile parameter cir is"
284 * Callback to get MTR capabilities.
287 * Pointer to Ethernet device.
289 * Pointer to save MTR capabilities.
291 * Pointer to the error structure.
294 * 0 on success, a negative errno value otherwise and rte_errno is set.
297 mlx5_flow_mtr_cap_get(struct rte_eth_dev *dev,
298 struct rte_mtr_capabilities *cap,
299 struct rte_mtr_error *error __rte_unused)
301 struct mlx5_priv *priv = dev->data->dev_private;
302 struct mlx5_hca_qos_attr *qattr = &priv->config.hca_attr.qos;
305 return -rte_mtr_error_set(error, ENOTSUP,
306 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
307 "Meter is not supported");
308 memset(cap, 0, sizeof(*cap));
309 cap->n_max = 1 << qattr->log_max_flow_meter;
310 cap->n_shared_max = cap->n_max;
312 cap->shared_identical = 1;
313 cap->shared_n_flows_per_mtr_max = 4 << 20;
314 /* 2M flows can share the same meter. */
315 cap->chaining_n_mtrs_per_flow_max = 1; /* Chaining is not supported. */
316 cap->meter_srtcm_rfc2697_n_max = qattr->srtcm_sup ? cap->n_max : 0;
317 cap->meter_rate_max = 1ULL << 40; /* 1 Tera tokens per sec. */
318 cap->policer_action_drop_supported = 1;
319 cap->stats_mask = RTE_MTR_STATS_N_BYTES_DROPPED |
320 RTE_MTR_STATS_N_PKTS_DROPPED;
325 * Callback to add MTR profile.
328 * Pointer to Ethernet device.
329 * @param[in] meter_profile_id
332 * Pointer to meter profile detail.
334 * Pointer to the error structure.
337 * 0 on success, a negative errno value otherwise and rte_errno is set.
340 mlx5_flow_meter_profile_add(struct rte_eth_dev *dev,
341 uint32_t meter_profile_id,
342 struct rte_mtr_meter_profile *profile,
343 struct rte_mtr_error *error)
345 struct mlx5_priv *priv = dev->data->dev_private;
346 struct mlx5_mtr_profiles *fmps = &priv->flow_meter_profiles;
347 struct mlx5_flow_meter_profile *fmp;
351 return -rte_mtr_error_set(error, ENOTSUP,
352 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
353 "Meter is not supported");
354 /* Check input params. */
355 ret = mlx5_flow_meter_profile_validate(dev, meter_profile_id,
359 /* Meter profile memory allocation. */
360 fmp = mlx5_malloc(MLX5_MEM_ZERO, sizeof(struct mlx5_flow_meter_profile),
361 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
363 return -rte_mtr_error_set(error, ENOMEM,
364 RTE_MTR_ERROR_TYPE_UNSPECIFIED,
365 NULL, "Meter profile memory "
367 /* Fill profile info. */
368 fmp->meter_profile_id = meter_profile_id;
369 fmp->profile = *profile;
370 /* Fill the flow meter parameters for the PRM. */
371 ret = mlx5_flow_meter_param_fill(fmp, error);
375 TAILQ_INSERT_TAIL(fmps, fmp, next);
383 * Callback to delete MTR profile.
386 * Pointer to Ethernet device.
387 * @param[in] meter_profile_id
390 * Pointer to the error structure.
393 * 0 on success, a negative errno value otherwise and rte_errno is set.
396 mlx5_flow_meter_profile_delete(struct rte_eth_dev *dev,
397 uint32_t meter_profile_id,
398 struct rte_mtr_error *error)
400 struct mlx5_priv *priv = dev->data->dev_private;
401 struct mlx5_flow_meter_profile *fmp;
404 return -rte_mtr_error_set(error, ENOTSUP,
405 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
406 "Meter is not supported");
407 /* Meter profile must exist. */
408 fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
410 return -rte_mtr_error_set(error, ENOENT,
411 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
413 "Meter profile id is invalid.");
414 /* Check profile is unused. */
416 return -rte_mtr_error_set(error, EBUSY,
417 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
418 NULL, "Meter profile is in use.");
419 /* Remove from list. */
420 TAILQ_REMOVE(&priv->flow_meter_profiles, fmp, next);
426 * Convert wrong color setting action to verbose error.
429 * Policy color action.
432 * Verbose meter color error type.
434 static inline enum rte_mtr_error_type
435 action2error(enum rte_mtr_policer_action action)
438 case MTR_POLICER_ACTION_COLOR_GREEN:
439 return RTE_MTR_ERROR_TYPE_POLICER_ACTION_GREEN;
440 case MTR_POLICER_ACTION_COLOR_YELLOW:
441 return RTE_MTR_ERROR_TYPE_POLICER_ACTION_YELLOW;
442 case MTR_POLICER_ACTION_COLOR_RED:
443 return RTE_MTR_ERROR_TYPE_POLICER_ACTION_RED;
447 return RTE_MTR_ERROR_TYPE_UNSPECIFIED;
451 * Check meter validation.
454 * Pointer to mlx5 private data structure.
455 * @param[in] meter_id
458 * Pointer to rte meter parameters.
460 * Pointer to rte meter error structure.
463 * 0 on success, a negative errno value otherwise and rte_errno is set.
466 mlx5_flow_meter_validate(struct mlx5_priv *priv, uint32_t meter_id,
467 struct rte_mtr_params *params,
468 struct rte_mtr_error *error)
470 static enum rte_mtr_policer_action
471 valid_recol_action[RTE_COLORS] = {
472 MTR_POLICER_ACTION_COLOR_GREEN,
473 MTR_POLICER_ACTION_COLOR_YELLOW,
474 MTR_POLICER_ACTION_COLOR_RED };
477 /* Meter params must not be NULL. */
479 return -rte_mtr_error_set(error, EINVAL,
480 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
481 NULL, "Meter object params null.");
482 /* Previous meter color is not supported. */
483 if (params->use_prev_mtr_color)
484 return -rte_mtr_error_set(error, ENOTSUP,
485 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
487 "Previous meter color "
489 /* Validate policer settings. */
490 for (i = 0; i < RTE_COLORS; i++)
491 if (params->action[i] != valid_recol_action[i] &&
492 params->action[i] != MTR_POLICER_ACTION_DROP)
493 return -rte_mtr_error_set
495 action2error(params->action[i]), NULL,
496 "Recolor action not supported.");
497 /* Validate meter id. */
498 if (mlx5_flow_meter_find(priv, meter_id))
499 return -rte_mtr_error_set(error, EEXIST,
500 RTE_MTR_ERROR_TYPE_MTR_ID, NULL,
501 "Meter object already exists.");
506 * Modify the flow meter action.
509 * Pointer to mlx5 private data structure.
511 * Pointer to flow meter to be modified.
513 * Pointer to meter srtcm description parameter.
514 * @param[in] modify_bits
515 * The bit in srtcm to be updated.
516 * @param[in] active_state
517 * The state to be updated.
519 * 0 on success, o negative value otherwise.
522 mlx5_flow_meter_action_modify(struct mlx5_priv *priv,
523 struct mlx5_flow_meter *fm,
524 const struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm,
525 uint64_t modify_bits, uint32_t active_state)
527 #ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
528 uint32_t in[MLX5_ST_SZ_DW(flow_meter_parameters)] = { 0 };
530 struct mlx5dv_dr_flow_meter_attr mod_attr = { 0 };
533 /* Fill command parameters. */
534 mod_attr.reg_c_index = priv->mtr_color_reg - REG_C_0;
535 mod_attr.flow_meter_parameter = in;
536 mod_attr.flow_meter_parameter_sz = fm->mfts->fmp_size;
537 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
538 mod_attr.active = !!active_state;
542 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS) {
543 MLX5_SET(flow_meter_parameters,
544 attr, cbs_exponent, srtcm->cbs_exponent);
545 MLX5_SET(flow_meter_parameters,
546 attr, cbs_mantissa, srtcm->cbs_mantissa);
548 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR) {
549 MLX5_SET(flow_meter_parameters,
550 attr, cir_exponent, srtcm->cir_exponent);
551 MLX5_SET(flow_meter_parameters,
552 attr, cir_mantissa, srtcm->cir_mantissa);
554 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_EBS) {
555 MLX5_SET(flow_meter_parameters,
556 attr, ebs_exponent, srtcm->ebs_exponent);
557 MLX5_SET(flow_meter_parameters,
558 attr, ebs_mantissa, srtcm->ebs_mantissa);
560 /* Apply modifications to meter only if it was created. */
561 if (fm->mfts->meter_action) {
562 ret = mlx5_glue->dv_modify_flow_action_meter
563 (fm->mfts->meter_action, &mod_attr,
564 rte_cpu_to_be_64(modify_bits));
568 /* Update succeedded modify meter parameters. */
569 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
570 fm->active_state = !!active_state;
571 attr = fm->mfts->fmp;
572 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS) {
573 MLX5_SET(flow_meter_parameters,
574 attr, cbs_exponent, srtcm->cbs_exponent);
575 MLX5_SET(flow_meter_parameters,
576 attr, cbs_mantissa, srtcm->cbs_mantissa);
578 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR) {
579 MLX5_SET(flow_meter_parameters,
580 attr, cir_exponent, srtcm->cir_exponent);
581 MLX5_SET(flow_meter_parameters,
582 attr, cir_mantissa, srtcm->cir_mantissa);
584 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_EBS) {
585 MLX5_SET(flow_meter_parameters,
586 attr, ebs_exponent, srtcm->ebs_exponent);
587 MLX5_SET(flow_meter_parameters,
588 attr, ebs_mantissa, srtcm->ebs_mantissa);
603 * Create meter rules.
606 * Pointer to Ethernet device.
607 * @param[in] meter_id
610 * Pointer to rte meter parameters.
612 * Meter shared with other flow or not.
614 * Pointer to rte meter error structure.
617 * 0 on success, a negative errno value otherwise and rte_errno is set.
620 mlx5_flow_meter_create(struct rte_eth_dev *dev, uint32_t meter_id,
621 struct rte_mtr_params *params, int shared,
622 struct rte_mtr_error *error)
624 struct mlx5_priv *priv = dev->data->dev_private;
625 struct mlx5_flow_meters *fms = &priv->flow_meters;
626 struct mlx5_flow_meter_profile *fmp;
627 struct mlx5_flow_meter *fm;
628 const struct rte_flow_attr attr = {
631 .transfer = priv->config.dv_esw_en ? 1 : 0,
638 return -rte_mtr_error_set(error, ENOTSUP,
639 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
640 "Meter is not supported");
641 /* Validate the parameters. */
642 ret = mlx5_flow_meter_validate(priv, meter_id, params, error);
645 /* Meter profile must exist. */
646 fmp = mlx5_flow_meter_profile_find(priv, params->meter_profile_id);
648 return -rte_mtr_error_set(error, ENOENT,
649 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
650 NULL, "Meter profile id not valid.");
651 /* Allocate the flow meter memory. */
652 fm = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MTR], &idx);
654 return -rte_mtr_error_set(error, ENOMEM,
655 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
656 "Memory alloc failed for meter.");
658 /* Fill the flow meter parameters. */
659 fm->meter_id = meter_id;
661 memcpy(fm->action, params->action, sizeof(params->action));
662 fm->stats_mask = params->stats_mask;
664 /* Alloc policer counters. */
665 for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++) {
666 fm->policer_stats.cnt[i] = mlx5_counter_alloc(dev);
667 if (!fm->policer_stats.cnt[i])
670 fm->mfts = mlx5_flow_create_mtr_tbls(dev, fm);
673 ret = mlx5_flow_create_policer_rules(dev, fm, &attr);
676 /* Add to the flow meter list. */
677 TAILQ_INSERT_TAIL(fms, fm, next);
678 fm->active_state = 1; /* Config meter starts as active. */
679 fm->shared = !!shared;
680 fm->policer_stats.stats_mask = params->stats_mask;
681 fm->profile->ref_cnt++;
682 rte_spinlock_init(&fm->sl);
685 mlx5_flow_destroy_policer_rules(dev, fm, &attr);
686 mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
687 /* Free policer counters. */
688 for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++)
689 if (fm->policer_stats.cnt[i])
690 mlx5_counter_free(dev, fm->policer_stats.cnt[i]);
691 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR], idx);
692 return -rte_mtr_error_set(error, -ret,
693 RTE_MTR_ERROR_TYPE_UNSPECIFIED,
694 NULL, "Failed to create devx meter.");
698 * Destroy meter rules.
701 * Pointer to Ethernet device.
702 * @param[in] meter_id
705 * Pointer to rte meter error structure.
708 * 0 on success, a negative errno value otherwise and rte_errno is set.
711 mlx5_flow_meter_destroy(struct rte_eth_dev *dev, uint32_t meter_id,
712 struct rte_mtr_error *error)
714 struct mlx5_priv *priv = dev->data->dev_private;
715 struct mlx5_flow_meters *fms = &priv->flow_meters;
716 struct mlx5_flow_meter_profile *fmp;
717 struct mlx5_flow_meter *fm;
718 const struct rte_flow_attr attr = {
721 .transfer = priv->config.dv_esw_en ? 1 : 0,
726 return -rte_mtr_error_set(error, ENOTSUP,
727 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
728 "Meter is not supported");
729 /* Meter object must exist. */
730 fm = mlx5_flow_meter_find(priv, meter_id);
732 return -rte_mtr_error_set(error, ENOENT,
733 RTE_MTR_ERROR_TYPE_MTR_ID,
734 NULL, "Meter object id not valid.");
735 /* Meter object must not have any owner. */
737 return -rte_mtr_error_set(error, EBUSY,
738 RTE_MTR_ERROR_TYPE_UNSPECIFIED,
739 NULL, "Meter object is being used.");
740 /* Get the meter profile. */
743 /* Update dependencies. */
745 /* Remove from the flow meter list. */
746 TAILQ_REMOVE(fms, fm, next);
747 /* Free policer counters. */
748 for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++)
749 if (fm->policer_stats.cnt[i])
750 mlx5_counter_free(dev, fm->policer_stats.cnt[i]);
751 /* Free meter flow table */
752 mlx5_flow_destroy_policer_rules(dev, fm, &attr);
753 mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
754 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR], fm->idx);
759 * Modify meter state.
762 * Pointer to mlx5 private data structure.
764 * Pointer to flow meter.
765 * @param[in] new_state
766 * New state to update.
768 * Pointer to rte meter error structure.
771 * 0 on success, a negative errno value otherwise and rte_errno is set.
774 mlx5_flow_meter_modify_state(struct mlx5_priv *priv,
775 struct mlx5_flow_meter *fm,
777 struct rte_mtr_error *error)
779 static const struct mlx5_flow_meter_srtcm_rfc2697_prm srtcm = {
787 uint64_t modify_bits = MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS |
788 MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR;
791 if (new_state == MLX5_FLOW_METER_DISABLE)
792 ret = mlx5_flow_meter_action_modify(priv, fm, &srtcm,
795 ret = mlx5_flow_meter_action_modify(priv, fm,
796 &fm->profile->srtcm_prm,
799 return -rte_mtr_error_set(error, -ret,
800 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
803 "Failed to enable meter." :
804 "Failed to disable meter.");
809 * Callback to enable flow meter.
812 * Pointer to Ethernet device.
813 * @param[in] meter_id
816 * Pointer to rte meter error structure.
819 * 0 on success, a negative errno value otherwise and rte_errno is set.
822 mlx5_flow_meter_enable(struct rte_eth_dev *dev,
824 struct rte_mtr_error *error)
826 struct mlx5_priv *priv = dev->data->dev_private;
827 struct mlx5_flow_meter *fm;
831 return -rte_mtr_error_set(error, ENOTSUP,
832 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
833 "Meter is not supported");
834 /* Meter object must exist. */
835 fm = mlx5_flow_meter_find(priv, meter_id);
837 return -rte_mtr_error_set(error, ENOENT,
838 RTE_MTR_ERROR_TYPE_MTR_ID,
839 NULL, "Meter not found.");
840 if (fm->active_state == MLX5_FLOW_METER_ENABLE)
842 ret = mlx5_flow_meter_modify_state(priv, fm, MLX5_FLOW_METER_ENABLE,
845 fm->active_state = MLX5_FLOW_METER_ENABLE;
850 * Callback to disable flow meter.
853 * Pointer to Ethernet device.
854 * @param[in] meter_id
857 * Pointer to rte meter error structure.
860 * 0 on success, a negative errno value otherwise and rte_errno is set.
863 mlx5_flow_meter_disable(struct rte_eth_dev *dev,
865 struct rte_mtr_error *error)
867 struct mlx5_priv *priv = dev->data->dev_private;
868 struct mlx5_flow_meter *fm;
872 return -rte_mtr_error_set(error, ENOTSUP,
873 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
874 "Meter is not supported");
875 /* Meter object must exist. */
876 fm = mlx5_flow_meter_find(priv, meter_id);
878 return -rte_mtr_error_set(error, ENOENT,
879 RTE_MTR_ERROR_TYPE_MTR_ID,
880 NULL, "Meter not found.");
881 if (fm->active_state == MLX5_FLOW_METER_DISABLE)
883 ret = mlx5_flow_meter_modify_state(priv, fm, MLX5_FLOW_METER_DISABLE,
886 fm->active_state = MLX5_FLOW_METER_DISABLE;
891 * Callback to update meter profile.
894 * Pointer to Ethernet device.
895 * @param[in] meter_id
897 * @param[in] meter_profile_id
898 * To be updated meter profile id.
900 * Pointer to rte meter error structure.
903 * 0 on success, a negative errno value otherwise and rte_errno is set.
906 mlx5_flow_meter_profile_update(struct rte_eth_dev *dev,
908 uint32_t meter_profile_id,
909 struct rte_mtr_error *error)
911 struct mlx5_priv *priv = dev->data->dev_private;
912 struct mlx5_flow_meter_profile *fmp;
913 struct mlx5_flow_meter_profile *old_fmp;
914 struct mlx5_flow_meter *fm;
915 uint64_t modify_bits = MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS |
916 MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR;
920 return -rte_mtr_error_set(error, ENOTSUP,
921 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
922 "Meter is not supported");
923 /* Meter profile must exist. */
924 fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
926 return -rte_mtr_error_set(error, ENOENT,
927 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
928 NULL, "Meter profile not found.");
929 /* Meter object must exist. */
930 fm = mlx5_flow_meter_find(priv, meter_id);
932 return -rte_mtr_error_set(error, ENOENT,
933 RTE_MTR_ERROR_TYPE_MTR_ID,
934 NULL, "Meter not found.");
935 /* MTR object already set to meter profile id. */
936 old_fmp = fm->profile;
939 /* Update the profile. */
941 /* Update meter params in HW (if not disabled). */
942 if (fm->active_state == MLX5_FLOW_METER_DISABLE)
944 ret = mlx5_flow_meter_action_modify(priv, fm, &fm->profile->srtcm_prm,
945 modify_bits, fm->active_state);
947 fm->profile = old_fmp;
948 return -rte_mtr_error_set(error, -ret,
949 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
950 NULL, "Failed to update meter"
951 " parmeters in hardware.");
959 * Callback to update meter stats mask.
962 * Pointer to Ethernet device.
963 * @param[in] meter_id
965 * @param[in] stats_mask
966 * To be updated stats_mask.
968 * Pointer to rte meter error structure.
971 * 0 on success, a negative errno value otherwise and rte_errno is set.
974 mlx5_flow_meter_stats_update(struct rte_eth_dev *dev,
977 struct rte_mtr_error *error)
979 struct mlx5_priv *priv = dev->data->dev_private;
980 struct mlx5_flow_meter *fm;
983 return -rte_mtr_error_set(error, ENOTSUP,
984 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
985 "Meter is not supported");
986 /* Meter object must exist. */
987 fm = mlx5_flow_meter_find(priv, meter_id);
989 return -rte_mtr_error_set(error, ENOENT,
990 RTE_MTR_ERROR_TYPE_MTR_ID,
991 NULL, "Meter object id not valid.");
992 fm->policer_stats.stats_mask = stats_mask;
997 * Callback to read meter statistics.
1000 * Pointer to Ethernet device.
1001 * @param[in] meter_id
1004 * Pointer to store the statistics.
1005 * @param[out] stats_mask
1006 * Pointer to store the stats_mask.
1008 * Statistic to be cleared after read or not.
1010 * Pointer to rte meter error structure.
1013 * 0 on success, a negative errno value otherwise and rte_errno is set.
1016 mlx5_flow_meter_stats_read(struct rte_eth_dev *dev,
1018 struct rte_mtr_stats *stats,
1019 uint64_t *stats_mask,
1021 struct rte_mtr_error *error)
1023 static uint64_t meter2mask[RTE_MTR_DROPPED + 1] = {
1024 RTE_MTR_STATS_N_PKTS_GREEN | RTE_MTR_STATS_N_BYTES_GREEN,
1025 RTE_MTR_STATS_N_PKTS_YELLOW | RTE_MTR_STATS_N_BYTES_YELLOW,
1026 RTE_MTR_STATS_N_PKTS_RED | RTE_MTR_STATS_N_BYTES_RED,
1027 RTE_MTR_STATS_N_PKTS_DROPPED | RTE_MTR_STATS_N_BYTES_DROPPED
1029 struct mlx5_priv *priv = dev->data->dev_private;
1030 struct mlx5_flow_meter *fm;
1031 struct mlx5_flow_policer_stats *ps;
1032 uint64_t pkts_dropped = 0;
1033 uint64_t bytes_dropped = 0;
1040 return -rte_mtr_error_set(error, ENOTSUP,
1041 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
1042 "Meter is not supported");
1043 /* Meter object must exist. */
1044 fm = mlx5_flow_meter_find(priv, meter_id);
1046 return -rte_mtr_error_set(error, ENOENT,
1047 RTE_MTR_ERROR_TYPE_MTR_ID,
1048 NULL, "Meter object id not valid.");
1049 ps = &fm->policer_stats;
1050 *stats_mask = ps->stats_mask;
1051 for (i = 0; i < RTE_MTR_DROPPED; i++) {
1052 if (*stats_mask & meter2mask[i]) {
1053 ret = mlx5_counter_query(dev, ps->cnt[i], clear, &pkts,
1057 if (fm->action[i] == MTR_POLICER_ACTION_DROP) {
1058 pkts_dropped += pkts;
1059 bytes_dropped += bytes;
1061 /* If need to read the packets, set it. */
1062 if ((1 << i) & (*stats_mask & meter2mask[i]))
1063 stats->n_pkts[i] = pkts;
1064 /* If need to read the bytes, set it. */
1065 if ((1 << (RTE_MTR_DROPPED + 1 + i)) &
1066 (*stats_mask & meter2mask[i]))
1067 stats->n_bytes[i] = bytes;
1070 /* Dropped packets/bytes are treated differently. */
1071 if (*stats_mask & meter2mask[i]) {
1072 ret = mlx5_counter_query(dev, ps->cnt[i], clear, &pkts,
1076 pkts += pkts_dropped;
1077 bytes += bytes_dropped;
1078 /* If need to read the packets, set it. */
1079 if ((*stats_mask & meter2mask[i]) &
1080 RTE_MTR_STATS_N_PKTS_DROPPED)
1081 stats->n_pkts_dropped = pkts;
1082 /* If need to read the bytes, set it. */
1083 if ((*stats_mask & meter2mask[i]) &
1084 RTE_MTR_STATS_N_BYTES_DROPPED)
1085 stats->n_bytes_dropped = bytes;
1089 return -rte_mtr_error_set(error, ret, RTE_MTR_ERROR_TYPE_STATS, NULL,
1090 "Failed to read policer counters.");
1093 static const struct rte_mtr_ops mlx5_flow_mtr_ops = {
1094 .capabilities_get = mlx5_flow_mtr_cap_get,
1095 .meter_profile_add = mlx5_flow_meter_profile_add,
1096 .meter_profile_delete = mlx5_flow_meter_profile_delete,
1097 .create = mlx5_flow_meter_create,
1098 .destroy = mlx5_flow_meter_destroy,
1099 .meter_enable = mlx5_flow_meter_enable,
1100 .meter_disable = mlx5_flow_meter_disable,
1101 .meter_profile_update = mlx5_flow_meter_profile_update,
1102 .meter_dscp_table_update = NULL,
1103 .policer_actions_update = NULL,
1104 .stats_update = mlx5_flow_meter_stats_update,
1105 .stats_read = mlx5_flow_meter_stats_read,
1109 * Get meter operations.
1112 * Pointer to Ethernet device structure.
1114 * Pointer to set the mtr operations.
1120 mlx5_flow_meter_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
1122 *(const struct rte_mtr_ops **)arg = &mlx5_flow_mtr_ops;
1130 * Pointer to mlx5_priv.
1135 * Pointer to the profile found on success, NULL otherwise.
1137 struct mlx5_flow_meter *
1138 mlx5_flow_meter_find(struct mlx5_priv *priv, uint32_t meter_id)
1140 struct mlx5_flow_meters *fms = &priv->flow_meters;
1141 struct mlx5_flow_meter *fm;
1143 TAILQ_FOREACH(fm, fms, next)
1144 if (meter_id == fm->meter_id)
1150 * Attach meter to flow.
1151 * Unidirectional Meter creation can only be done
1152 * when flow direction is known, i.e. when calling meter_attach.
1155 * Pointer to mlx5 private data.
1156 * @param [in] meter_id
1159 * Pointer to flow attributes.
1160 * @param [out] error
1161 * Pointer to error structure.
1163 * @return the flow meter pointer, NULL otherwise.
1165 struct mlx5_flow_meter *
1166 mlx5_flow_meter_attach(struct mlx5_priv *priv, uint32_t meter_id,
1167 const struct rte_flow_attr *attr,
1168 struct rte_flow_error *error)
1170 struct mlx5_flow_meter *fm;
1173 fm = mlx5_flow_meter_find(priv, meter_id);
1175 rte_flow_error_set(error, ENOENT,
1176 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1177 "Meter object id not valid");
1180 rte_spinlock_lock(&fm->sl);
1181 if (fm->mfts->meter_action) {
1183 attr->transfer == fm->transfer &&
1184 attr->ingress == fm->ingress &&
1185 attr->egress == fm->egress)
1190 fm->ingress = attr->ingress;
1191 fm->egress = attr->egress;
1192 fm->transfer = attr->transfer;
1194 /* This also creates the meter object. */
1195 fm->mfts->meter_action = mlx5_flow_meter_action_create(priv,
1197 if (!fm->mfts->meter_action) {
1203 DRV_LOG(ERR, "Meter action create failed.");
1206 rte_spinlock_unlock(&fm->sl);
1208 rte_flow_error_set(error, EINVAL,
1209 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1210 fm->mfts->meter_action ?
1211 "Meter attr not match" :
1212 "Meter action create failed");
1213 return ret ? NULL : fm;
1217 * Detach meter from flow.
1220 * Pointer to flow meter.
1223 mlx5_flow_meter_detach(struct mlx5_flow_meter *fm)
1225 #ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
1226 rte_spinlock_lock(&fm->sl);
1227 MLX5_ASSERT(fm->ref_cnt);
1228 if (--fm->ref_cnt == 0) {
1229 mlx5_glue->destroy_flow_action(fm->mfts->meter_action);
1230 fm->mfts->meter_action = NULL;
1235 rte_spinlock_unlock(&fm->sl);
1242 * Flush meter configuration.
1245 * Pointer to Ethernet device.
1247 * Pointer to rte meter error structure.
1250 * 0 on success, a negative errno value otherwise and rte_errno is set.
1253 mlx5_flow_meter_flush(struct rte_eth_dev *dev, struct rte_mtr_error *error)
1255 struct mlx5_priv *priv = dev->data->dev_private;
1256 struct mlx5_flow_meters *fms = &priv->flow_meters;
1257 struct mlx5_mtr_profiles *fmps = &priv->flow_meter_profiles;
1258 struct mlx5_flow_meter_profile *fmp;
1259 struct mlx5_flow_meter *fm;
1260 const struct rte_flow_attr attr = {
1263 .transfer = priv->config.dv_esw_en ? 1 : 0,
1268 TAILQ_FOREACH_SAFE(fm, fms, next, tmp) {
1269 /* Meter object must not have any owner. */
1270 MLX5_ASSERT(!fm->ref_cnt);
1271 /* Get meter profile. */
1274 return -rte_mtr_error_set(error, EINVAL,
1275 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
1276 NULL, "MTR object meter profile invalid.");
1277 /* Update dependencies. */
1279 /* Remove from list. */
1280 TAILQ_REMOVE(fms, fm, next);
1281 /* Free policer counters. */
1282 for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++)
1283 if (fm->policer_stats.cnt[i])
1284 mlx5_counter_free(dev,
1285 fm->policer_stats.cnt[i]);
1286 /* Free meter flow table. */
1287 mlx5_flow_destroy_policer_rules(dev, fm, &attr);
1288 mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
1289 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR], fm->idx);
1291 TAILQ_FOREACH_SAFE(fmp, fmps, next, tmp) {
1293 MLX5_ASSERT(!fmp->ref_cnt);
1294 /* Remove from list. */
1295 TAILQ_REMOVE(&priv->flow_meter_profiles, fmp, next);