1 // SPDX-License-Identifier: BSD-3-Clause
3 * Copyright 2018 Mellanox Technologies, Ltd
7 #include <rte_malloc.h>
9 #include <rte_mtr_driver.h>
12 #include "mlx5_flow.h"
15 * Create the meter action.
18 * Pointer to mlx5_priv.
20 * Pointer to flow meter to be converted.
23 * Pointer to the meter action on success, NULL otherwise.
26 mlx5_flow_meter_action_create(struct mlx5_priv *priv,
27 struct mlx5_flow_meter *fm)
29 #ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
30 struct mlx5dv_dr_flow_meter_attr mtr_init;
31 void *attr = fm->mfts->fmp;
32 struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm =
33 &fm->profile->srtcm_prm;
35 fm->mfts->fmp_size = MLX5_ST_SZ_BYTES(flow_meter_parameters);
36 memset(attr, 0, fm->mfts->fmp_size);
37 MLX5_SET(flow_meter_parameters, attr, valid, 1);
38 MLX5_SET(flow_meter_parameters, attr, bucket_overflow, 1);
39 MLX5_SET(flow_meter_parameters, attr,
40 start_color, MLX5_FLOW_COLOR_GREEN);
41 MLX5_SET(flow_meter_parameters, attr, both_buckets_on_green, 0);
42 MLX5_SET(flow_meter_parameters,
43 attr, cbs_exponent, srtcm->cbs_exponent);
44 MLX5_SET(flow_meter_parameters,
45 attr, cbs_mantissa, srtcm->cbs_mantissa);
46 MLX5_SET(flow_meter_parameters,
47 attr, cir_exponent, srtcm->cir_exponent);
48 MLX5_SET(flow_meter_parameters,
49 attr, cir_mantissa, srtcm->cir_mantissa);
50 MLX5_SET(flow_meter_parameters,
51 attr, ebs_exponent, srtcm->ebs_exponent);
52 MLX5_SET(flow_meter_parameters,
53 attr, ebs_mantissa, srtcm->ebs_mantissa);
55 fm->attr.transfer ? fm->mfts->transfer.tbl->obj :
56 fm->attr.egress ? fm->mfts->egress.tbl->obj :
57 fm->mfts->ingress.tbl->obj;
58 mtr_init.reg_c_index = priv->mtr_color_reg - REG_C_0;
59 mtr_init.flow_meter_parameter = fm->mfts->fmp;
60 mtr_init.flow_meter_parameter_sz = fm->mfts->fmp_size;
61 mtr_init.active = fm->active_state;
62 return mlx5_glue->dv_create_flow_action_meter(&mtr_init);
71 * Find meter profile by id.
74 * Pointer to mlx5_priv.
75 * @param meter_profile_id
79 * Pointer to the profile found on success, NULL otherwise.
81 static struct mlx5_flow_meter_profile *
82 mlx5_flow_meter_profile_find(struct mlx5_priv *priv, uint32_t meter_profile_id)
84 struct mlx5_mtr_profiles *fmps = &priv->flow_meter_profiles;
85 struct mlx5_flow_meter_profile *fmp;
87 TAILQ_FOREACH(fmp, fmps, next)
88 if (meter_profile_id == fmp->meter_profile_id)
94 * Validate the MTR profile.
97 * Pointer to Ethernet device.
98 * @param[in] meter_profile_id
101 * Pointer to meter profile detail.
103 * Pointer to the error structure.
106 * 0 on success, a negative errno value otherwise and rte_errno is set.
109 mlx5_flow_meter_profile_validate(struct rte_eth_dev *dev,
110 uint32_t meter_profile_id,
111 struct rte_mtr_meter_profile *profile,
112 struct rte_mtr_error *error)
114 struct mlx5_priv *priv = dev->data->dev_private;
115 struct mlx5_flow_meter_profile *fmp;
117 /* Profile must not be NULL. */
119 return -rte_mtr_error_set(error, EINVAL,
120 RTE_MTR_ERROR_TYPE_METER_PROFILE,
121 NULL, "Meter profile is null.");
122 /* Meter profile ID must be valid. */
123 if (meter_profile_id == UINT32_MAX)
124 return -rte_mtr_error_set(error, EINVAL,
125 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
126 NULL, "Meter profile id not valid.");
127 /* Meter profile must not exist. */
128 fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
130 return -rte_mtr_error_set(error, EEXIST,
131 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
133 "Meter profile already exists.");
134 if (profile->alg == RTE_MTR_SRTCM_RFC2697) {
135 if (priv->config.hca_attr.qos.srtcm_sup) {
136 /* Verify support for flow meter parameters. */
137 if (profile->srtcm_rfc2697.cir > 0 &&
138 profile->srtcm_rfc2697.cir <= MLX5_SRTCM_CIR_MAX &&
139 profile->srtcm_rfc2697.cbs > 0 &&
140 profile->srtcm_rfc2697.cbs <= MLX5_SRTCM_CBS_MAX &&
141 profile->srtcm_rfc2697.ebs <= MLX5_SRTCM_EBS_MAX)
144 return -rte_mtr_error_set
146 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
148 profile->srtcm_rfc2697.ebs ?
149 "Metering value ebs must be 0." :
150 "Invalid metering parameters.");
153 return -rte_mtr_error_set(error, ENOTSUP,
154 RTE_MTR_ERROR_TYPE_METER_PROFILE,
155 NULL, "Metering algorithm not supported.");
159 * Calculate mantissa and exponent for cir.
162 * Value to be calculated.
164 * Pointer to the mantissa.
166 * Pointer to the exp.
169 mlx5_flow_meter_cir_man_exp_calc(int64_t cir, uint8_t *man, uint8_t *exp)
172 int64_t delta = INT64_MAX;
177 for (m = 0; m <= 0xFF; m++) { /* man width 8 bit */
178 for (e = 0; e <= 0x1F; e++) { /* exp width 5bit */
179 _cir = (1000000000ULL * m) >> e;
180 if (llabs(cir - _cir) <= delta) {
181 delta = llabs(cir - _cir);
192 * Calculate mantissa and exponent for xbs.
195 * Value to be calculated.
197 * Pointer to the mantissa.
199 * Pointer to the exp.
202 mlx5_flow_meter_xbs_man_exp_calc(uint64_t xbs, uint8_t *man, uint8_t *exp)
207 /* Special case xbs == 0 ? both exp and matissa are 0. */
213 /* xbs = xbs_mantissa * 2^xbs_exponent */
214 _man = frexp(xbs, &_exp);
215 _man = _man * pow(2, MLX5_MAN_WIDTH);
216 _exp = _exp - MLX5_MAN_WIDTH;
217 *man = (uint8_t)ceil(_man);
222 * Fill the prm meter parameter.
225 * Pointer to meter profie to be converted.
227 * Pointer to the error structure.
230 * 0 on success, a negative errno value otherwise and rte_errno is set.
233 mlx5_flow_meter_param_fill(struct mlx5_flow_meter_profile *fmp,
234 struct rte_mtr_error *error)
236 struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm = &fmp->srtcm_prm;
239 if (fmp->profile.alg != RTE_MTR_SRTCM_RFC2697)
240 return -rte_mtr_error_set(error, ENOTSUP,
241 RTE_MTR_ERROR_TYPE_METER_PROFILE,
242 NULL, "Metering algorithm not supported.");
243 /* cbs = cbs_mantissa * 2^cbs_exponent */
244 mlx5_flow_meter_xbs_man_exp_calc(fmp->profile.srtcm_rfc2697.cbs,
246 srtcm->cbs_mantissa = man;
247 srtcm->cbs_exponent = exp;
248 /* Check if cbs mantissa is too large. */
249 if (srtcm->cbs_exponent != exp)
250 return -rte_mtr_error_set(error, EINVAL,
251 RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
252 "Metering profile parameter cbs is"
254 /* ebs = ebs_mantissa * 2^ebs_exponent */
255 mlx5_flow_meter_xbs_man_exp_calc(fmp->profile.srtcm_rfc2697.ebs,
257 srtcm->ebs_mantissa = man;
258 srtcm->ebs_exponent = exp;
259 /* Check if ebs mantissa is too large. */
260 if (srtcm->ebs_exponent != exp)
261 return -rte_mtr_error_set(error, EINVAL,
262 RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
263 "Metering profile parameter ebs is"
265 /* cir = 8G * cir_mantissa * 1/(2^cir_exponent)) Bytes/Sec */
266 mlx5_flow_meter_cir_man_exp_calc(fmp->profile.srtcm_rfc2697.cir,
268 srtcm->cir_mantissa = man;
269 srtcm->cir_exponent = exp;
270 /* Check if cir mantissa is too large. */
271 if (srtcm->cir_exponent != exp)
272 return -rte_mtr_error_set(error, EINVAL,
273 RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
274 "Metering profile parameter cir is"
280 * Callback to get MTR capabilities.
283 * Pointer to Ethernet device.
285 * Pointer to save MTR capabilities.
287 * Pointer to the error structure.
290 * 0 on success, a negative errno value otherwise and rte_errno is set.
293 mlx5_flow_mtr_cap_get(struct rte_eth_dev *dev,
294 struct rte_mtr_capabilities *cap,
295 struct rte_mtr_error *error __rte_unused)
297 struct mlx5_priv *priv = dev->data->dev_private;
298 struct mlx5_hca_qos_attr *qattr = &priv->config.hca_attr.qos;
301 return -rte_mtr_error_set(error, ENOTSUP,
302 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
303 "Meter is not support");
304 memset(cap, 0, sizeof(*cap));
305 cap->n_max = 1 << qattr->log_max_flow_meter;
306 cap->n_shared_max = cap->n_max;
308 cap->shared_identical = 1;
309 cap->shared_n_flows_per_mtr_max = 4 << 20;
310 /* 2M flows can share the same meter. */
311 cap->chaining_n_mtrs_per_flow_max = 1; /* Chaining is not supported. */
312 cap->meter_srtcm_rfc2697_n_max = qattr->srtcm_sup ? cap->n_max : 0;
313 cap->meter_rate_max = 1ULL << 40; /* 1 Tera tokens per sec. */
314 cap->policer_action_drop_supported = 1;
315 cap->stats_mask = RTE_MTR_STATS_N_BYTES_DROPPED |
316 RTE_MTR_STATS_N_PKTS_DROPPED;
321 * Callback to add MTR profile.
324 * Pointer to Ethernet device.
325 * @param[in] meter_profile_id
328 * Pointer to meter profile detail.
330 * Pointer to the error structure.
333 * 0 on success, a negative errno value otherwise and rte_errno is set.
336 mlx5_flow_meter_profile_add(struct rte_eth_dev *dev,
337 uint32_t meter_profile_id,
338 struct rte_mtr_meter_profile *profile,
339 struct rte_mtr_error *error)
341 struct mlx5_priv *priv = dev->data->dev_private;
342 struct mlx5_mtr_profiles *fmps = &priv->flow_meter_profiles;
343 struct mlx5_flow_meter_profile *fmp;
347 return -rte_mtr_error_set(error, ENOTSUP,
348 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
349 "Meter is not support");
350 /* Check input params. */
351 ret = mlx5_flow_meter_profile_validate(dev, meter_profile_id,
355 /* Meter profile memory allocation. */
356 fmp = rte_calloc(__func__, 1, sizeof(struct mlx5_flow_meter_profile),
357 RTE_CACHE_LINE_SIZE);
359 return -rte_mtr_error_set(error, ENOMEM,
360 RTE_MTR_ERROR_TYPE_UNSPECIFIED,
361 NULL, "Meter profile memory "
363 /* Fill profile info. */
364 fmp->meter_profile_id = meter_profile_id;
365 fmp->profile = *profile;
366 /* Fill the flow meter parameters for the PRM. */
367 ret = mlx5_flow_meter_param_fill(fmp, error);
371 TAILQ_INSERT_TAIL(fmps, fmp, next);
379 * Callback to delete MTR profile.
382 * Pointer to Ethernet device.
383 * @param[in] meter_profile_id
386 * Pointer to the error structure.
389 * 0 on success, a negative errno value otherwise and rte_errno is set.
392 mlx5_flow_meter_profile_delete(struct rte_eth_dev *dev,
393 uint32_t meter_profile_id,
394 struct rte_mtr_error *error)
396 struct mlx5_priv *priv = dev->data->dev_private;
397 struct mlx5_flow_meter_profile *fmp;
400 return -rte_mtr_error_set(error, ENOTSUP,
401 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
402 "Meter is not support");
403 /* Meter profile must exist. */
404 fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
406 return -rte_mtr_error_set(error, ENOENT,
407 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
409 "Meter profile id invalid.");
410 /* Check profile is unused. */
412 return -rte_mtr_error_set(error, EBUSY,
413 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
414 NULL, "Meter profile in use.");
415 /* Remove from list. */
416 TAILQ_REMOVE(&priv->flow_meter_profiles, fmp, next);
422 * Convert wrong color setting action to verbose error.
425 * Policy color action.
428 * Verbose meter color error type.
430 static inline enum rte_mtr_error_type
431 action2error(enum rte_mtr_policer_action action)
434 case MTR_POLICER_ACTION_COLOR_GREEN:
435 return RTE_MTR_ERROR_TYPE_POLICER_ACTION_GREEN;
436 case MTR_POLICER_ACTION_COLOR_YELLOW:
437 return RTE_MTR_ERROR_TYPE_POLICER_ACTION_YELLOW;
438 case MTR_POLICER_ACTION_COLOR_RED:
439 return RTE_MTR_ERROR_TYPE_POLICER_ACTION_RED;
443 return RTE_MTR_ERROR_TYPE_UNSPECIFIED;
447 * Check meter validation.
450 * Pointer to mlx5 private data structure.
451 * @param[in] meter_id
454 * Pointer to rte meter parameters.
456 * Pointer to rte meter error structure.
459 * 0 on success, a negative errno value otherwise and rte_errno is set.
462 mlx5_flow_meter_validate(struct mlx5_priv *priv, uint32_t meter_id,
463 struct rte_mtr_params *params,
464 struct rte_mtr_error *error)
466 static enum rte_mtr_policer_action
467 valid_recol_action[RTE_COLORS] = {
468 MTR_POLICER_ACTION_COLOR_GREEN,
469 MTR_POLICER_ACTION_COLOR_YELLOW,
470 MTR_POLICER_ACTION_COLOR_RED };
473 /* Meter params must not be NULL. */
475 return -rte_mtr_error_set(error, EINVAL,
476 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
477 NULL, "Meter object params null.");
478 /* Previous meter color is not supported. */
479 if (params->use_prev_mtr_color)
480 return -rte_mtr_error_set(error, ENOTSUP,
481 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
483 "Previous meter color "
485 /* Validate policer settings. */
486 for (i = 0; i < RTE_COLORS; i++)
487 if (params->action[i] != valid_recol_action[i] &&
488 params->action[i] != MTR_POLICER_ACTION_DROP)
489 return -rte_mtr_error_set
491 action2error(params->action[i]), NULL,
492 "Recolor action not supported.");
493 /* Validate meter id. */
494 if (mlx5_flow_meter_find(priv, meter_id))
495 return -rte_mtr_error_set(error, EEXIST,
496 RTE_MTR_ERROR_TYPE_MTR_ID, NULL,
497 "Meter object already exists.");
502 * Modify the flow meter action.
505 * Pointer to mlx5 private data structure.
507 * Pointer to flow meter to be modified.
509 * Pointer to meter srtcm description parameter.
510 * @param[in] modify_bits
511 * The bit in srtcm to be updated.
512 * @param[in] active_state
513 * The state to be updated.
515 * 0 on success, o negative value otherwise.
518 mlx5_flow_meter_action_modify(struct mlx5_priv *priv,
519 struct mlx5_flow_meter *fm,
520 const struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm,
521 uint64_t modify_bits, uint32_t active_state)
523 #ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
524 uint32_t in[MLX5_ST_SZ_DW(flow_meter_parameters)] = { 0 };
526 struct mlx5dv_dr_flow_meter_attr mod_attr = { 0 };
529 /* Fill command parameters. */
530 mod_attr.reg_c_index = priv->mtr_color_reg - REG_C_0;
531 mod_attr.flow_meter_parameter = in;
532 mod_attr.flow_meter_parameter_sz = fm->mfts->fmp_size;
533 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
534 mod_attr.active = !!active_state;
538 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS) {
539 MLX5_SET(flow_meter_parameters,
540 attr, cbs_exponent, srtcm->cbs_exponent);
541 MLX5_SET(flow_meter_parameters,
542 attr, cbs_mantissa, srtcm->cbs_mantissa);
544 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR) {
545 MLX5_SET(flow_meter_parameters,
546 attr, cir_exponent, srtcm->cir_exponent);
547 MLX5_SET(flow_meter_parameters,
548 attr, cir_mantissa, srtcm->cir_mantissa);
550 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_EBS) {
551 MLX5_SET(flow_meter_parameters,
552 attr, ebs_exponent, srtcm->ebs_exponent);
553 MLX5_SET(flow_meter_parameters,
554 attr, ebs_mantissa, srtcm->ebs_mantissa);
556 /* Apply modifications to meter only if it was created. */
557 if (fm->mfts->meter_action) {
558 ret = mlx5_glue->dv_modify_flow_action_meter
559 (fm->mfts->meter_action, &mod_attr,
560 rte_cpu_to_be_64(modify_bits));
564 /* Update succeedded modify meter parameters. */
565 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
566 fm->active_state = !!active_state;
567 attr = fm->mfts->fmp;
568 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS) {
569 MLX5_SET(flow_meter_parameters,
570 attr, cbs_exponent, srtcm->cbs_exponent);
571 MLX5_SET(flow_meter_parameters,
572 attr, cbs_mantissa, srtcm->cbs_mantissa);
574 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR) {
575 MLX5_SET(flow_meter_parameters,
576 attr, cir_exponent, srtcm->cir_exponent);
577 MLX5_SET(flow_meter_parameters,
578 attr, cir_mantissa, srtcm->cir_mantissa);
580 if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_EBS) {
581 MLX5_SET(flow_meter_parameters,
582 attr, ebs_exponent, srtcm->ebs_exponent);
583 MLX5_SET(flow_meter_parameters,
584 attr, ebs_mantissa, srtcm->ebs_mantissa);
599 * Create meter rules.
602 * Pointer to Ethernet device.
603 * @param[in] meter_id
606 * Pointer to rte meter parameters.
608 * Meter shared with other flow or not.
610 * Pointer to rte meter error structure.
613 * 0 on success, a negative errno value otherwise and rte_errno is set.
616 mlx5_flow_meter_create(struct rte_eth_dev *dev, uint32_t meter_id,
617 struct rte_mtr_params *params, int shared,
618 struct rte_mtr_error *error)
620 struct mlx5_priv *priv = dev->data->dev_private;
621 struct mlx5_flow_meters *fms = &priv->flow_meters;
622 struct mlx5_flow_meter_profile *fmp;
623 struct mlx5_flow_meter *fm;
624 const struct rte_flow_attr attr = {
627 .transfer = priv->config.dv_esw_en ? 1 : 0,
633 return -rte_mtr_error_set(error, ENOTSUP,
634 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
635 "Meter is not support");
636 /* Validate the parameters. */
637 ret = mlx5_flow_meter_validate(priv, meter_id, params, error);
640 /* Meter profile must exist. */
641 fmp = mlx5_flow_meter_profile_find(priv, params->meter_profile_id);
643 return -rte_mtr_error_set(error, ENOENT,
644 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
645 NULL, "Meter profile id not valid.");
646 /* Allocate the flow meter memory. */
647 fm = rte_calloc(__func__, 1,
648 sizeof(struct mlx5_flow_meter), RTE_CACHE_LINE_SIZE);
650 return -rte_mtr_error_set(error, ENOMEM,
651 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
652 "Memory alloc failed for meter.");
653 /* Fill the flow meter parameters. */
654 fm->meter_id = meter_id;
656 fm->params = *params;
657 /* Alloc policer counters. */
658 for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++) {
659 fm->policer_stats.cnt[i] = mlx5_counter_alloc(dev);
660 if (!fm->policer_stats.cnt[i])
663 fm->mfts = mlx5_flow_create_mtr_tbls(dev, fm);
666 ret = mlx5_flow_create_policer_rules(dev, fm, &attr);
669 /* Add to the flow meter list. */
670 TAILQ_INSERT_TAIL(fms, fm, next);
671 fm->active_state = 1; /* Config meter starts as active. */
672 fm->shared = !!shared;
673 fm->policer_stats.stats_mask = params->stats_mask;
674 fm->profile->ref_cnt++;
677 mlx5_flow_destroy_policer_rules(dev, fm, &attr);
678 mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
679 /* Free policer counters. */
680 for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++)
681 if (fm->policer_stats.cnt[i])
682 mlx5_counter_free(dev, fm->policer_stats.cnt[i]);
684 return -rte_mtr_error_set(error, -ret,
685 RTE_MTR_ERROR_TYPE_UNSPECIFIED,
686 NULL, "Failed to create devx meter.");
690 * Destroy meter rules.
693 * Pointer to Ethernet device.
694 * @param[in] meter_id
697 * Pointer to rte meter error structure.
700 * 0 on success, a negative errno value otherwise and rte_errno is set.
703 mlx5_flow_meter_destroy(struct rte_eth_dev *dev, uint32_t meter_id,
704 struct rte_mtr_error *error)
706 struct mlx5_priv *priv = dev->data->dev_private;
707 struct mlx5_flow_meters *fms = &priv->flow_meters;
708 struct mlx5_flow_meter_profile *fmp;
709 struct mlx5_flow_meter *fm;
710 const struct rte_flow_attr attr = {
713 .transfer = priv->config.dv_esw_en ? 1 : 0,
718 return -rte_mtr_error_set(error, ENOTSUP,
719 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
720 "Meter is not support");
721 /* Meter object must exist. */
722 fm = mlx5_flow_meter_find(priv, meter_id);
724 return -rte_mtr_error_set(error, ENOENT,
725 RTE_MTR_ERROR_TYPE_MTR_ID,
726 NULL, "Meter object id not valid.");
727 /* Meter object must not have any owner. */
729 return -rte_mtr_error_set(error, EBUSY,
730 RTE_MTR_ERROR_TYPE_UNSPECIFIED,
731 NULL, "Meter object is being used.");
732 /* Get the meter profile. */
735 /* Update dependencies. */
737 /* Remove from the flow meter list. */
738 TAILQ_REMOVE(fms, fm, next);
739 /* Free policer counters. */
740 for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++)
741 if (fm->policer_stats.cnt[i])
742 mlx5_counter_free(dev, fm->policer_stats.cnt[i]);
743 /* Free meter flow table */
744 mlx5_flow_destroy_policer_rules(dev, fm, &attr);
745 mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
751 * Modify meter state.
754 * Pointer to mlx5 private data structure.
756 * Pointer to flow meter.
757 * @param[in] new_state
758 * New state to update.
760 * Pointer to rte meter error structure.
763 * 0 on success, a negative errno value otherwise and rte_errno is set.
766 mlx5_flow_meter_modify_state(struct mlx5_priv *priv,
767 struct mlx5_flow_meter *fm,
769 struct rte_mtr_error *error)
771 static const struct mlx5_flow_meter_srtcm_rfc2697_prm srtcm = {
779 uint64_t modify_bits = MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS |
780 MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR;
783 if (new_state == MLX5_FLOW_METER_DISABLE)
784 ret = mlx5_flow_meter_action_modify(priv, fm, &srtcm,
787 ret = mlx5_flow_meter_action_modify(priv, fm,
788 &fm->profile->srtcm_prm,
791 return -rte_mtr_error_set(error, -ret,
792 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
795 "Failed to enable meter." :
796 "Failed to disable meter.");
801 * Callback to enable flow meter.
804 * Pointer to Ethernet device.
805 * @param[in] meter_id
808 * Pointer to rte meter error structure.
811 * 0 on success, a negative errno value otherwise and rte_errno is set.
814 mlx5_flow_meter_enable(struct rte_eth_dev *dev,
816 struct rte_mtr_error *error)
818 struct mlx5_priv *priv = dev->data->dev_private;
819 struct mlx5_flow_meter *fm;
823 return -rte_mtr_error_set(error, ENOTSUP,
824 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
825 "Meter is not support");
826 /* Meter object must exist. */
827 fm = mlx5_flow_meter_find(priv, meter_id);
829 return -rte_mtr_error_set(error, ENOENT,
830 RTE_MTR_ERROR_TYPE_MTR_ID,
831 NULL, "Meter not found.");
832 if (fm->active_state == MLX5_FLOW_METER_ENABLE)
834 ret = mlx5_flow_meter_modify_state(priv, fm, MLX5_FLOW_METER_ENABLE,
837 fm->active_state = MLX5_FLOW_METER_ENABLE;
842 * Callback to disable flow meter.
845 * Pointer to Ethernet device.
846 * @param[in] meter_id
849 * Pointer to rte meter error structure.
852 * 0 on success, a negative errno value otherwise and rte_errno is set.
855 mlx5_flow_meter_disable(struct rte_eth_dev *dev,
857 struct rte_mtr_error *error)
859 struct mlx5_priv *priv = dev->data->dev_private;
860 struct mlx5_flow_meter *fm;
864 return -rte_mtr_error_set(error, ENOTSUP,
865 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
866 "Meter is not support");
867 /* Meter object must exist. */
868 fm = mlx5_flow_meter_find(priv, meter_id);
870 return -rte_mtr_error_set(error, ENOENT,
871 RTE_MTR_ERROR_TYPE_MTR_ID,
872 NULL, "Meter not found.");
873 if (fm->active_state == MLX5_FLOW_METER_DISABLE)
875 ret = mlx5_flow_meter_modify_state(priv, fm, MLX5_FLOW_METER_DISABLE,
878 fm->active_state = MLX5_FLOW_METER_DISABLE;
883 * Callback to update meter profile.
886 * Pointer to Ethernet device.
887 * @param[in] meter_id
889 * @param[in] meter_profile_id
890 * To be updated meter profile id.
892 * Pointer to rte meter error structure.
895 * 0 on success, a negative errno value otherwise and rte_errno is set.
898 mlx5_flow_meter_profile_update(struct rte_eth_dev *dev,
900 uint32_t meter_profile_id,
901 struct rte_mtr_error *error)
903 struct mlx5_priv *priv = dev->data->dev_private;
904 struct mlx5_flow_meter_profile *fmp;
905 struct mlx5_flow_meter_profile *old_fmp;
906 struct mlx5_flow_meter *fm;
907 uint64_t modify_bits = MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS |
908 MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR;
912 return -rte_mtr_error_set(error, ENOTSUP,
913 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
914 "Meter is not support");
915 /* Meter profile must exist. */
916 fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
918 return -rte_mtr_error_set(error, ENOENT,
919 RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
920 NULL, "Meter profile not found.");
921 /* Meter object must exist. */
922 fm = mlx5_flow_meter_find(priv, meter_id);
924 return -rte_mtr_error_set(error, ENOENT,
925 RTE_MTR_ERROR_TYPE_MTR_ID,
926 NULL, "Meter not found.");
927 /* MTR object already set to meter profile id. */
928 old_fmp = fm->profile;
931 /* Update the profile. */
933 /* Update meter params in HW (if not disabled). */
934 if (fm->active_state == MLX5_FLOW_METER_DISABLE)
936 ret = mlx5_flow_meter_action_modify(priv, fm, &fm->profile->srtcm_prm,
937 modify_bits, fm->active_state);
939 fm->profile = old_fmp;
940 return -rte_mtr_error_set(error, -ret,
941 RTE_MTR_ERROR_TYPE_MTR_PARAMS,
942 NULL, "Failed to update meter"
943 " parmeters in hardware.");
951 * Callback to update meter stats mask.
954 * Pointer to Ethernet device.
955 * @param[in] meter_id
957 * @param[in] stats_mask
958 * To be updated stats_mask.
960 * Pointer to rte meter error structure.
963 * 0 on success, a negative errno value otherwise and rte_errno is set.
966 mlx5_flow_meter_stats_update(struct rte_eth_dev *dev,
969 struct rte_mtr_error *error)
971 struct mlx5_priv *priv = dev->data->dev_private;
972 struct mlx5_flow_meter *fm;
975 return -rte_mtr_error_set(error, ENOTSUP,
976 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
977 "Meter is not support");
978 /* Meter object must exist. */
979 fm = mlx5_flow_meter_find(priv, meter_id);
981 return -rte_mtr_error_set(error, ENOENT,
982 RTE_MTR_ERROR_TYPE_MTR_ID,
983 NULL, "Meter object id not valid.");
984 fm->policer_stats.stats_mask = stats_mask;
989 * Callback to read meter statistics.
992 * Pointer to Ethernet device.
993 * @param[in] meter_id
996 * Pointer to store the statistics.
997 * @param[out] stats_mask
998 * Pointer to store the stats_mask.
1000 * Statistic to be cleared after read or not.
1002 * Pointer to rte meter error structure.
1005 * 0 on success, a negative errno value otherwise and rte_errno is set.
1008 mlx5_flow_meter_stats_read(struct rte_eth_dev *dev,
1010 struct rte_mtr_stats *stats,
1011 uint64_t *stats_mask,
1013 struct rte_mtr_error *error)
1015 static uint64_t meter2mask[RTE_MTR_DROPPED + 1] = {
1016 RTE_MTR_STATS_N_PKTS_GREEN | RTE_MTR_STATS_N_BYTES_GREEN,
1017 RTE_MTR_STATS_N_PKTS_YELLOW | RTE_MTR_STATS_N_BYTES_YELLOW,
1018 RTE_MTR_STATS_N_PKTS_RED | RTE_MTR_STATS_N_BYTES_RED,
1019 RTE_MTR_STATS_N_PKTS_DROPPED | RTE_MTR_STATS_N_BYTES_DROPPED
1021 struct mlx5_priv *priv = dev->data->dev_private;
1022 struct mlx5_flow_meter *fm;
1023 struct mlx5_flow_policer_stats *ps;
1024 uint64_t pkts_dropped = 0;
1025 uint64_t bytes_dropped = 0;
1032 return -rte_mtr_error_set(error, ENOTSUP,
1033 RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
1034 "Meter is not support");
1035 /* Meter object must exist. */
1036 fm = mlx5_flow_meter_find(priv, meter_id);
1038 return -rte_mtr_error_set(error, ENOENT,
1039 RTE_MTR_ERROR_TYPE_MTR_ID,
1040 NULL, "Meter object id not valid.");
1041 ps = &fm->policer_stats;
1042 *stats_mask = ps->stats_mask;
1043 for (i = 0; i < RTE_MTR_DROPPED; i++) {
1044 if (*stats_mask & meter2mask[i]) {
1045 ret = mlx5_counter_query(dev, ps->cnt[i], clear, &pkts,
1049 if (fm->params.action[i] == MTR_POLICER_ACTION_DROP) {
1050 pkts_dropped += pkts;
1051 bytes_dropped += bytes;
1053 /* If need to read the packets, set it. */
1054 if ((1 << i) & (*stats_mask & meter2mask[i]))
1055 stats->n_pkts[i] = pkts;
1056 /* If need to read the bytes, set it. */
1057 if ((1 << (RTE_MTR_DROPPED + 1 + i)) &
1058 (*stats_mask & meter2mask[i]))
1059 stats->n_bytes[i] = bytes;
1062 /* Dropped packets/bytes are treated differently. */
1063 if (*stats_mask & meter2mask[i]) {
1064 ret = mlx5_counter_query(dev, ps->cnt[i], clear, &pkts,
1068 pkts += pkts_dropped;
1069 bytes += bytes_dropped;
1070 /* If need to read the packets, set it. */
1071 if ((*stats_mask & meter2mask[i]) &
1072 RTE_MTR_STATS_N_PKTS_DROPPED)
1073 stats->n_pkts_dropped = pkts;
1074 /* If need to read the bytes, set it. */
1075 if ((*stats_mask & meter2mask[i]) &
1076 RTE_MTR_STATS_N_BYTES_DROPPED)
1077 stats->n_bytes_dropped = bytes;
1081 return -rte_mtr_error_set(error, ret, RTE_MTR_ERROR_TYPE_STATS, NULL,
1082 "Failed to read policer counters.");
1085 static const struct rte_mtr_ops mlx5_flow_mtr_ops = {
1086 .capabilities_get = mlx5_flow_mtr_cap_get,
1087 .meter_profile_add = mlx5_flow_meter_profile_add,
1088 .meter_profile_delete = mlx5_flow_meter_profile_delete,
1089 .create = mlx5_flow_meter_create,
1090 .destroy = mlx5_flow_meter_destroy,
1091 .meter_enable = mlx5_flow_meter_enable,
1092 .meter_disable = mlx5_flow_meter_disable,
1093 .meter_profile_update = mlx5_flow_meter_profile_update,
1094 .meter_dscp_table_update = NULL,
1095 .policer_actions_update = NULL,
1096 .stats_update = mlx5_flow_meter_stats_update,
1097 .stats_read = mlx5_flow_meter_stats_read,
1101 * Get meter operations.
1104 * Pointer to Ethernet device structure.
1106 * Pointer to set the mtr operations.
1112 mlx5_flow_meter_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
1114 *(const struct rte_mtr_ops **)arg = &mlx5_flow_mtr_ops;
1122 * Pointer to mlx5_priv.
1127 * Pointer to the profile found on success, NULL otherwise.
1129 struct mlx5_flow_meter *
1130 mlx5_flow_meter_find(struct mlx5_priv *priv, uint32_t meter_id)
1132 struct mlx5_flow_meters *fms = &priv->flow_meters;
1133 struct mlx5_flow_meter *fm;
1135 TAILQ_FOREACH(fm, fms, next)
1136 if (meter_id == fm->meter_id)
1142 * Attach meter to flow.
1143 * Unidirectional Meter creation can only be done
1144 * when flow direction is known, i.e. when calling meter_attach.
1147 * Pointer to mlx5 private data.
1148 * @param [in] meter_id
1151 * Pointer to flow attributes.
1152 * @param [out] error
1153 * Pointer to error structure.
1155 * @return the flow meter pointer, NULL otherwise.
1157 struct mlx5_flow_meter *
1158 mlx5_flow_meter_attach(struct mlx5_priv *priv, uint32_t meter_id,
1159 const struct rte_flow_attr *attr,
1160 struct rte_flow_error *error)
1162 struct mlx5_flow_meter *fm;
1164 fm = mlx5_flow_meter_find(priv, meter_id);
1166 rte_flow_error_set(error, ENOENT,
1167 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1168 "Meter object id not valid");
1171 if (!fm->shared && fm->ref_cnt) {
1172 DRV_LOG(ERR, "Cannot share a non-shared meter.");
1173 rte_flow_error_set(error, EINVAL,
1174 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1175 "Meter can't be shared");
1178 if (!fm->ref_cnt++) {
1179 RTE_ASSERT(!fm->mfts->meter_action);
1181 /* This also creates the meter object. */
1182 fm->mfts->meter_action = mlx5_flow_meter_action_create(priv,
1184 if (!fm->mfts->meter_action)
1187 RTE_ASSERT(fm->mfts->meter_action);
1188 if (attr->transfer != fm->attr.transfer ||
1189 attr->ingress != fm->attr.ingress ||
1190 attr->egress != fm->attr.egress) {
1191 DRV_LOG(ERR, "meter I/O attributes do not "
1192 "match flow I/O attributes.");
1198 mlx5_flow_meter_detach(fm);
1199 rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
1200 fm->mfts->meter_action ? "Meter attr not match" :
1201 "Meter action create failed");
1207 * Detach meter from flow.
1210 * Pointer to flow meter.
1213 mlx5_flow_meter_detach(struct mlx5_flow_meter *fm)
1215 const struct rte_flow_attr attr = { 0 };
1217 RTE_ASSERT(fm->ref_cnt);
1220 if (fm->mfts->meter_action)
1221 mlx5_glue->destroy_flow_action(fm->mfts->meter_action);
1222 fm->mfts->meter_action = NULL;