*/
#include <math.h>
+#include <rte_malloc.h>
#include <rte_mtr.h>
#include <rte_mtr_driver.h>
#include "mlx5.h"
+#include "mlx5_flow.h"
+
+/**
+ * Find meter profile by id.
+ *
+ * @param priv
+ * Pointer to mlx5_priv.
+ * @param meter_profile_id
+ * Meter profile id.
+ *
+ * @return
+ * Pointer to the profile found on success, NULL otherwise.
+ */
+static struct mlx5_flow_meter_profile *
+mlx5_flow_meter_profile_find(struct mlx5_priv *priv, uint32_t meter_profile_id)
+{
+ struct mlx5_mtr_profiles *fmps = &priv->flow_meter_profiles;
+ struct mlx5_flow_meter_profile *fmp;
+
+ TAILQ_FOREACH(fmp, fmps, next)
+ if (meter_profile_id == fmp->meter_profile_id)
+ return fmp;
+ return NULL;
+}
+
+/**
+ * Validate the MTR profile.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_profile_id
+ * Meter profile id.
+ * @param[in] profile
+ * Pointer to meter profile detail.
+ * @param[out] error
+ * Pointer to the error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_profile_validate(struct rte_eth_dev *dev,
+ uint32_t meter_profile_id,
+ struct rte_mtr_meter_profile *profile,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_profile *fmp;
+
+ /* Profile must not be NULL. */
+ if (profile == NULL)
+ return -rte_mtr_error_set(error, EINVAL,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE,
+ NULL, "Meter profile is null.");
+ /* Meter profile ID must be valid. */
+ if (meter_profile_id == UINT32_MAX)
+ return -rte_mtr_error_set(error, EINVAL,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+ NULL, "Meter profile id not valid.");
+ /* Meter profile must not exist. */
+ fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
+ if (fmp)
+ return -rte_mtr_error_set(error, EEXIST,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+ NULL,
+ "Meter profile already exists.");
+ if (profile->alg == RTE_MTR_SRTCM_RFC2697) {
+ if (priv->config.hca_attr.qos.srtcm_sup) {
+ /* Verify support for flow meter parameters. */
+ if (profile->srtcm_rfc2697.cir > 0 &&
+ profile->srtcm_rfc2697.cir <= MLX5_SRTCM_CIR_MAX &&
+ profile->srtcm_rfc2697.cbs > 0 &&
+ profile->srtcm_rfc2697.cbs <= MLX5_SRTCM_CBS_MAX &&
+ profile->srtcm_rfc2697.ebs <= MLX5_SRTCM_EBS_MAX)
+ return 0;
+ else
+ return -rte_mtr_error_set
+ (error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS,
+ NULL,
+ profile->srtcm_rfc2697.ebs ?
+ "Metering value ebs must be 0." :
+ "Invalid metering parameters.");
+ }
+ }
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE,
+ NULL, "Metering algorithm not supported.");
+}
+
+/**
+ * Calculate mantissa and exponent for cir.
+ *
+ * @param[in] cir
+ * Value to be calculated.
+ * @param[out] man
+ * Pointer to the mantissa.
+ * @param[out] exp
+ * Pointer to the exp.
+ */
+static void
+mlx5_flow_meter_cir_man_exp_calc(int64_t cir, uint8_t *man, uint8_t *exp)
+{
+ int64_t _cir;
+ int64_t delta = INT64_MAX;
+ uint8_t _man = 0;
+ uint8_t _exp = 0;
+ uint64_t m, e;
+
+ for (m = 0; m <= 0xFF; m++) { /* man width 8 bit */
+ for (e = 0; e <= 0x1F; e++) { /* exp width 5bit */
+ _cir = (1000000000ULL * m) >> e;
+ if (llabs(cir - _cir) <= delta) {
+ delta = llabs(cir - _cir);
+ _man = m;
+ _exp = e;
+ }
+ }
+ }
+ *man = _man;
+ *exp = _exp;
+}
+
+/**
+ * Calculate mantissa and exponent for xbs.
+ *
+ * @param[in] xbs
+ * Value to be calculated.
+ * @param[out] man
+ * Pointer to the mantissa.
+ * @param[out] exp
+ * Pointer to the exp.
+ */
+static void
+mlx5_flow_meter_xbs_man_exp_calc(uint64_t xbs, uint8_t *man, uint8_t *exp)
+{
+ int _exp;
+ double _man;
+
+ /* Special case xbs == 0 ? both exp and matissa are 0. */
+ if (xbs == 0) {
+ *man = 0;
+ *exp = 0;
+ return;
+ }
+ /* xbs = xbs_mantissa * 2^xbs_exponent */
+ _man = frexp(xbs, &_exp);
+ _man = _man * pow(2, MLX5_MAN_WIDTH);
+ _exp = _exp - MLX5_MAN_WIDTH;
+ *man = (uint8_t)ceil(_man);
+ *exp = _exp;
+}
+
+/**
+ * Fill the prm meter parameter.
+ *
+ * @param[in,out] fmp
+ * Pointer to meter profie to be converted.
+ * @param[out] error
+ * Pointer to the error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_param_fill(struct mlx5_flow_meter_profile *fmp,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm = &fmp->srtcm_prm;
+ uint8_t man, exp;
+
+ if (fmp->profile.alg != RTE_MTR_SRTCM_RFC2697)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE,
+ NULL, "Metering algorithm not supported.");
+ /* cbs = cbs_mantissa * 2^cbs_exponent */
+ mlx5_flow_meter_xbs_man_exp_calc(fmp->profile.srtcm_rfc2697.cbs,
+ &man, &exp);
+ srtcm->cbs_mantissa = man;
+ srtcm->cbs_exponent = exp;
+ /* Check if cbs mantissa is too large. */
+ if (srtcm->cbs_exponent != exp)
+ return -rte_mtr_error_set(error, EINVAL,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
+ "Metering profile parameter cbs is"
+ " invalid.");
+ /* ebs = ebs_mantissa * 2^ebs_exponent */
+ mlx5_flow_meter_xbs_man_exp_calc(fmp->profile.srtcm_rfc2697.ebs,
+ &man, &exp);
+ srtcm->ebs_mantissa = man;
+ srtcm->ebs_exponent = exp;
+ /* Check if ebs mantissa is too large. */
+ if (srtcm->ebs_exponent != exp)
+ return -rte_mtr_error_set(error, EINVAL,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
+ "Metering profile parameter ebs is"
+ " invalid.");
+ /* cir = 8G * cir_mantissa * 1/(2^cir_exponent)) Bytes/Sec */
+ mlx5_flow_meter_cir_man_exp_calc(fmp->profile.srtcm_rfc2697.cir,
+ &man, &exp);
+ srtcm->cir_mantissa = man;
+ srtcm->cir_exponent = exp;
+ /* Check if cir mantissa is too large. */
+ if (srtcm->cir_exponent != exp)
+ return -rte_mtr_error_set(error, EINVAL,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
+ "Metering profile parameter cir is"
+ " invalid.");
+ return 0;
+}
+
+/**
+ * Callback to get MTR capabilities.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[out] cap
+ * Pointer to save MTR capabilities.
+ * @param[out] error
+ * Pointer to the error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_mtr_cap_get(struct rte_eth_dev *dev,
+ struct rte_mtr_capabilities *cap,
+ struct rte_mtr_error *error __rte_unused)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_hca_qos_attr *qattr = &priv->config.hca_attr.qos;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not support");
+ memset(cap, 0, sizeof(*cap));
+ cap->n_max = 1 << qattr->log_max_flow_meter;
+ cap->n_shared_max = cap->n_max;
+ cap->identical = 1;
+ cap->shared_identical = 1;
+ cap->shared_n_flows_per_mtr_max = 4 << 20;
+ /* 2M flows can share the same meter. */
+ cap->chaining_n_mtrs_per_flow_max = 1; /* Chaining is not supported. */
+ cap->meter_srtcm_rfc2697_n_max = qattr->srtcm_sup ? cap->n_max : 0;
+ cap->meter_rate_max = 1ULL << 40; /* 1 Tera tokens per sec. */
+ cap->policer_action_drop_supported = 1;
+ cap->stats_mask = RTE_MTR_STATS_N_BYTES_DROPPED |
+ RTE_MTR_STATS_N_PKTS_DROPPED;
+ return 0;
+}
+
+/**
+ * Callback to add MTR profile.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_profile_id
+ * Meter profile id.
+ * @param[in] profile
+ * Pointer to meter profile detail.
+ * @param[out] error
+ * Pointer to the error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_profile_add(struct rte_eth_dev *dev,
+ uint32_t meter_profile_id,
+ struct rte_mtr_meter_profile *profile,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_mtr_profiles *fmps = &priv->flow_meter_profiles;
+ struct mlx5_flow_meter_profile *fmp;
+ int ret;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not support");
+ /* Check input params. */
+ ret = mlx5_flow_meter_profile_validate(dev, meter_profile_id,
+ profile, error);
+ if (ret)
+ return ret;
+ /* Meter profile memory allocation. */
+ fmp = rte_calloc(__func__, 1, sizeof(struct mlx5_flow_meter_profile),
+ RTE_CACHE_LINE_SIZE);
+ if (fmp == NULL)
+ return -rte_mtr_error_set(error, ENOMEM,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+ NULL, "Meter profile memory "
+ "alloc failed.");
+ /* Fill profile info. */
+ fmp->meter_profile_id = meter_profile_id;
+ fmp->profile = *profile;
+ /* Fill the flow meter parameters for the PRM. */
+ ret = mlx5_flow_meter_param_fill(fmp, error);
+ if (ret)
+ goto error;
+ /* Add to list. */
+ TAILQ_INSERT_TAIL(fmps, fmp, next);
+ return 0;
+error:
+ rte_free(fmp);
+ return ret;
+}
+
+/**
+ * Callback to delete MTR profile.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_profile_id
+ * Meter profile id.
+ * @param[out] error
+ * Pointer to the error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_profile_delete(struct rte_eth_dev *dev,
+ uint32_t meter_profile_id,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_profile *fmp;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not support");
+ /* Meter profile must exist. */
+ fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
+ if (fmp == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+ &meter_profile_id,
+ "Meter profile id invalid.");
+ /* Check profile is unused. */
+ if (fmp->ref_cnt)
+ return -rte_mtr_error_set(error, EBUSY,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+ NULL, "Meter profile in use.");
+ /* Remove from list. */
+ TAILQ_REMOVE(&priv->flow_meter_profiles, fmp, next);
+ rte_free(fmp);
+ return 0;
+}
+
+/**
+ * Convert wrong color setting action to verbose error.
+ *
+ * @param[in] action
+ * Policy color action.
+ *
+ * @return
+ * Verbose meter color error type.
+ */
+static inline enum rte_mtr_error_type
+action2error(enum rte_mtr_policer_action action)
+{
+ switch (action) {
+ case MTR_POLICER_ACTION_COLOR_GREEN:
+ return RTE_MTR_ERROR_TYPE_POLICER_ACTION_GREEN;
+ case MTR_POLICER_ACTION_COLOR_YELLOW:
+ return RTE_MTR_ERROR_TYPE_POLICER_ACTION_YELLOW;
+ case MTR_POLICER_ACTION_COLOR_RED:
+ return RTE_MTR_ERROR_TYPE_POLICER_ACTION_RED;
+ default:
+ break;
+ }
+ return RTE_MTR_ERROR_TYPE_UNSPECIFIED;
+}
+
+/**
+ * Check meter validation.
+ *
+ * @param[in] priv
+ * Pointer to mlx5 private data structure.
+ * @param[in] meter_id
+ * Meter id.
+ * @param[in] params
+ * Pointer to rte meter parameters.
+ * @param[out] error
+ * Pointer to rte meter error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_validate(struct mlx5_priv *priv, uint32_t meter_id,
+ struct rte_mtr_params *params,
+ struct rte_mtr_error *error)
+{
+ static enum rte_mtr_policer_action
+ valid_recol_action[RTE_COLORS] = {
+ MTR_POLICER_ACTION_COLOR_GREEN,
+ MTR_POLICER_ACTION_COLOR_YELLOW,
+ MTR_POLICER_ACTION_COLOR_RED };
+ int i;
+
+ /* Meter params must not be NULL. */
+ if (params == NULL)
+ return -rte_mtr_error_set(error, EINVAL,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS,
+ NULL, "Meter object params null.");
+ /* Previous meter color is not supported. */
+ if (params->use_prev_mtr_color)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS,
+ NULL,
+ "Previous meter color "
+ "not supported.");
+ /* Validate policer settings. */
+ for (i = 0; i < RTE_COLORS; i++)
+ if (params->action[i] != valid_recol_action[i] &&
+ params->action[i] != MTR_POLICER_ACTION_DROP)
+ return -rte_mtr_error_set
+ (error, ENOTSUP,
+ action2error(params->action[i]), NULL,
+ "Recolor action not supported.");
+ /* Validate meter id. */
+ if (mlx5_flow_meter_find(priv, meter_id))
+ return -rte_mtr_error_set(error, EEXIST,
+ RTE_MTR_ERROR_TYPE_MTR_ID, NULL,
+ "Meter object already exists.");
+ return 0;
+}
+
+/**
+ * Modify the flow meter action.
+ *
+ * @param[in] priv
+ * Pointer to mlx5 private data structure.
+ * @param[in] fm
+ * Pointer to flow meter to be modified.
+ * @param[in] srtcm
+ * Pointer to meter srtcm description parameter.
+ * @param[in] modify_bits
+ * The bit in srtcm to be updated.
+ * @param[in] active_state
+ * The state to be updated.
+ * @return
+ * 0 on success, o negative value otherwise.
+ */
+static int
+mlx5_flow_meter_action_modify(struct mlx5_priv *priv,
+ struct mlx5_flow_meter *fm,
+ const struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm,
+ uint64_t modify_bits, uint32_t active_state)
+{
+#ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
+ uint32_t in[MLX5_ST_SZ_DW(flow_meter_parameters)] = { 0 };
+ uint32_t *attr;
+ struct mlx5dv_dr_flow_meter_attr mod_attr = { 0 };
+ int ret;
+
+ /* Fill command parameters. */
+ mod_attr.reg_c_index = priv->mtr_color_reg - REG_C_0;
+ mod_attr.flow_meter_parameter = in;
+ mod_attr.flow_meter_parameter_sz = fm->mfts->fmp_size;
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
+ mod_attr.active = !!active_state;
+ else
+ mod_attr.active = 0;
+ attr = in;
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS) {
+ MLX5_SET(flow_meter_parameters,
+ attr, cbs_exponent, srtcm->cbs_exponent);
+ MLX5_SET(flow_meter_parameters,
+ attr, cbs_mantissa, srtcm->cbs_mantissa);
+ }
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR) {
+ MLX5_SET(flow_meter_parameters,
+ attr, cir_exponent, srtcm->cir_exponent);
+ MLX5_SET(flow_meter_parameters,
+ attr, cir_mantissa, srtcm->cir_mantissa);
+ }
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_EBS) {
+ MLX5_SET(flow_meter_parameters,
+ attr, ebs_exponent, srtcm->ebs_exponent);
+ MLX5_SET(flow_meter_parameters,
+ attr, ebs_mantissa, srtcm->ebs_mantissa);
+ }
+ /* Apply modifications to meter only if it was created. */
+ if (fm->mfts->meter_action) {
+ ret = mlx5_glue->dv_modify_flow_action_meter
+ (fm->mfts->meter_action, &mod_attr,
+ rte_cpu_to_be_64(modify_bits));
+ if (ret)
+ return ret;
+ }
+ /* Update succeedded modify meter parameters. */
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
+ fm->active_state = !!active_state;
+ attr = fm->mfts->fmp;
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS) {
+ MLX5_SET(flow_meter_parameters,
+ attr, cbs_exponent, srtcm->cbs_exponent);
+ MLX5_SET(flow_meter_parameters,
+ attr, cbs_mantissa, srtcm->cbs_mantissa);
+ }
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR) {
+ MLX5_SET(flow_meter_parameters,
+ attr, cir_exponent, srtcm->cir_exponent);
+ MLX5_SET(flow_meter_parameters,
+ attr, cir_mantissa, srtcm->cir_mantissa);
+ }
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_EBS) {
+ MLX5_SET(flow_meter_parameters,
+ attr, ebs_exponent, srtcm->ebs_exponent);
+ MLX5_SET(flow_meter_parameters,
+ attr, ebs_mantissa, srtcm->ebs_mantissa);
+ }
+
+ return 0;
+#else
+ (void)priv;
+ (void)fm;
+ (void)srtcm;
+ (void)modify_bits;
+ (void)active_state;
+ return -ENOTSUP;
+#endif
+}
+
+/**
+ * Create meter rules.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_id
+ * Meter id.
+ * @param[in] params
+ * Pointer to rte meter parameters.
+ * @param[in] shared
+ * Meter shared with other flow or not.
+ * @param[out] error
+ * Pointer to rte meter error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_create(struct rte_eth_dev *dev, uint32_t meter_id,
+ struct rte_mtr_params *params, int shared,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meters *fms = &priv->flow_meters;
+ struct mlx5_flow_meter_profile *fmp;
+ struct mlx5_flow_meter *fm;
+ const struct rte_flow_attr attr = {
+ .ingress = 1,
+ .egress = 1,
+ .transfer = priv->config.dv_esw_en ? 1 : 0,
+ };
+ int ret;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not support");
+ /* Validate the parameters. */
+ ret = mlx5_flow_meter_validate(priv, meter_id, params, error);
+ if (ret)
+ return ret;
+ /* Meter profile must exist. */
+ fmp = mlx5_flow_meter_profile_find(priv, params->meter_profile_id);
+ if (fmp == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+ NULL, "Meter profile id not valid.");
+ /* Allocate the flow meter memory. */
+ fm = rte_calloc(__func__, 1,
+ sizeof(struct mlx5_flow_meter), RTE_CACHE_LINE_SIZE);
+ if (fm == NULL)
+ return -rte_mtr_error_set(error, ENOMEM,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Memory alloc failed for meter.");
+ /* Fill the flow meter parameters. */
+ fm->meter_id = meter_id;
+ fm->profile = fmp;
+ fm->params = *params;
+ fm->mfts = mlx5_flow_create_mtr_tbls(dev);
+ if (!fm->mfts)
+ goto error;
+ ret = mlx5_flow_create_policer_rules(dev, fm, &attr);
+ if (ret)
+ goto error;
+ /* Add to the flow meter list. */
+ TAILQ_INSERT_TAIL(fms, fm, next);
+ fm->active_state = 1; /* Config meter starts as active. */
+ fm->shared = !!shared;
+ fm->profile->ref_cnt++;
+ return 0;
+error:
+ mlx5_flow_destroy_policer_rules(dev, fm, &attr);
+ mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
+ rte_free(fm);
+ return -rte_mtr_error_set(error, -ret,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+ NULL, "Failed to create devx meter.");
+}
+
+/**
+ * Destroy meter rules.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_id
+ * Meter id.
+ * @param[out] error
+ * Pointer to rte meter error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_destroy(struct rte_eth_dev *dev, uint32_t meter_id,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meters *fms = &priv->flow_meters;
+ struct mlx5_flow_meter_profile *fmp;
+ struct mlx5_flow_meter *fm;
+ const struct rte_flow_attr attr = {
+ .ingress = 1,
+ .egress = 1,
+ .transfer = priv->config.dv_esw_en ? 1 : 0,
+ };
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not support");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id);
+ if (fm == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_MTR_ID,
+ NULL, "Meter object id not valid.");
+ /* Meter object must not have any owner. */
+ if (fm->ref_cnt > 0)
+ return -rte_mtr_error_set(error, EBUSY,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+ NULL, "Meter object is being used.");
+ /* Get the meter profile. */
+ fmp = fm->profile;
+ RTE_ASSERT(fmp);
+ /* Update dependencies. */
+ fmp->ref_cnt--;
+ /* Remove from the flow meter list. */
+ TAILQ_REMOVE(fms, fm, next);
+ /* Free meter flow table */
+ mlx5_flow_destroy_policer_rules(dev, fm, &attr);
+ mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
+ rte_free(fm);
+ return 0;
+}
+
+/**
+ * Modify meter state.
+ *
+ * @param[in] priv
+ * Pointer to mlx5 private data structure.
+ * @param[in] fm
+ * Pointer to flow meter.
+ * @param[in] new_state
+ * New state to update.
+ * @param[out] error
+ * Pointer to rte meter error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_modify_state(struct mlx5_priv *priv,
+ struct mlx5_flow_meter *fm,
+ uint32_t new_state,
+ struct rte_mtr_error *error)
+{
+ static const struct mlx5_flow_meter_srtcm_rfc2697_prm srtcm = {
+ .cbs_exponent = 20,
+ .cbs_mantissa = 191,
+ .cir_exponent = 0,
+ .cir_mantissa = 200,
+ .ebs_exponent = 0,
+ .ebs_mantissa = 0,
+ };
+ uint64_t modify_bits = MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS |
+ MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR;
+ int ret;
+
+ if (new_state == MLX5_FLOW_METER_DISABLE)
+ ret = mlx5_flow_meter_action_modify(priv, fm, &srtcm,
+ modify_bits, 0);
+ else
+ ret = mlx5_flow_meter_action_modify(priv, fm,
+ &fm->profile->srtcm_prm,
+ modify_bits, 0);
+ if (ret)
+ return -rte_mtr_error_set(error, -ret,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS,
+ NULL,
+ new_state ?
+ "Failed to enable meter." :
+ "Failed to disable meter.");
+ return 0;
+}
+
+/**
+ * Callback to enable flow meter.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_id
+ * Meter id.
+ * @param[out] error
+ * Pointer to rte meter error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_enable(struct rte_eth_dev *dev,
+ uint32_t meter_id,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter *fm;
+ int ret;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not support");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id);
+ if (fm == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_MTR_ID,
+ NULL, "Meter not found.");
+ if (fm->active_state == MLX5_FLOW_METER_ENABLE)
+ return 0;
+ ret = mlx5_flow_meter_modify_state(priv, fm, MLX5_FLOW_METER_ENABLE,
+ error);
+ if (!ret)
+ fm->active_state = MLX5_FLOW_METER_ENABLE;
+ return ret;
+}
+
+/**
+ * Callback to disable flow meter.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_id
+ * Meter id.
+ * @param[out] error
+ * Pointer to rte meter error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_disable(struct rte_eth_dev *dev,
+ uint32_t meter_id,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter *fm;
+ int ret;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not support");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id);
+ if (fm == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_MTR_ID,
+ NULL, "Meter not found.");
+ if (fm->active_state == MLX5_FLOW_METER_DISABLE)
+ return 0;
+ ret = mlx5_flow_meter_modify_state(priv, fm, MLX5_FLOW_METER_DISABLE,
+ error);
+ if (!ret)
+ fm->active_state = MLX5_FLOW_METER_DISABLE;
+ return ret;
+}
+
+/**
+ * Callback to update meter profile.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_id
+ * Meter id.
+ * @param[in] meter_profile_id
+ * To be updated meter profile id.
+ * @param[out] error
+ * Pointer to rte meter error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_meter_profile_update(struct rte_eth_dev *dev,
+ uint32_t meter_id,
+ uint32_t meter_profile_id,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_profile *fmp;
+ struct mlx5_flow_meter_profile *old_fmp;
+ struct mlx5_flow_meter *fm;
+ uint64_t modify_bits = MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS |
+ MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR;
+ int ret;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not support");
+ /* Meter profile must exist. */
+ fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
+ if (fmp == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+ NULL, "Meter profile not found.");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id);
+ if (fm == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_MTR_ID,
+ NULL, "Meter not found.");
+ /* MTR object already set to meter profile id. */
+ old_fmp = fm->profile;
+ if (fmp == old_fmp)
+ return 0;
+ /* Update the profile. */
+ fm->profile = fmp;
+ /* Update meter params in HW (if not disabled). */
+ if (fm->active_state == MLX5_FLOW_METER_DISABLE)
+ return 0;
+ ret = mlx5_flow_meter_action_modify(priv, fm, &fm->profile->srtcm_prm,
+ modify_bits, fm->active_state);
+ if (ret) {
+ fm->profile = old_fmp;
+ return -rte_mtr_error_set(error, -ret,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS,
+ NULL, "Failed to update meter"
+ " parmeters in hardware.");
+ }
+ old_fmp->ref_cnt--;
+ fmp->ref_cnt++;
+ return 0;
+}
static const struct rte_mtr_ops mlx5_flow_mtr_ops = {
- .capabilities_get = NULL,
- .meter_profile_add = NULL,
- .meter_profile_delete = NULL,
- .create = NULL,
- .destroy = NULL,
- .meter_enable = NULL,
- .meter_disable = NULL,
- .meter_profile_update = NULL,
+ .capabilities_get = mlx5_flow_mtr_cap_get,
+ .meter_profile_add = mlx5_flow_meter_profile_add,
+ .meter_profile_delete = mlx5_flow_meter_profile_delete,
+ .create = mlx5_flow_meter_create,
+ .destroy = mlx5_flow_meter_destroy,
+ .meter_enable = mlx5_flow_meter_enable,
+ .meter_disable = mlx5_flow_meter_disable,
+ .meter_profile_update = mlx5_flow_meter_profile_update,
.meter_dscp_table_update = NULL,
.policer_actions_update = NULL,
.stats_update = NULL,
*(const struct rte_mtr_ops **)arg = &mlx5_flow_mtr_ops;
return 0;
}
+
+/**
+ * Find meter by id.
+ *
+ * @param priv
+ * Pointer to mlx5_priv.
+ * @param meter_id
+ * Meter id.
+ *
+ * @return
+ * Pointer to the profile found on success, NULL otherwise.
+ */
+struct mlx5_flow_meter *
+mlx5_flow_meter_find(struct mlx5_priv *priv, uint32_t meter_id)
+{
+ struct mlx5_flow_meters *fms = &priv->flow_meters;
+ struct mlx5_flow_meter *fm;
+
+ TAILQ_FOREACH(fm, fms, next)
+ if (meter_id == fm->meter_id)
+ return fm;
+ return NULL;
+}
git.droids-corp.org / dpdk.git / blobdiff