+/**
+ * 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_flow_meter_profile *fmp;
+ union mlx5_l3t_data data;
+ int ret;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not supported");
+ /* Check input params. */
+ ret = mlx5_flow_meter_profile_validate(dev, meter_profile_id,
+ profile, error);
+ if (ret)
+ return ret;
+ /* Meter profile memory allocation. */
+ fmp = mlx5_malloc(MLX5_MEM_ZERO, sizeof(struct mlx5_flow_meter_profile),
+ RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
+ 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->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;
+ data.ptr = fmp;
+ ret = mlx5_l3t_set_entry(priv->mtr_profile_tbl,
+ meter_profile_id, &data);
+ if (ret)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+ NULL, "Meter profile insert fail.");
+ return 0;
+error:
+ mlx5_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 supported");
+ /* 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 is 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 is in use.");
+ if (mlx5_l3t_clear_entry(priv->mtr_profile_tbl, meter_profile_id))
+ return -rte_mtr_error_set(error, EBUSY,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+ NULL, "Meter profile remove fail.");
+ mlx5_free(fmp);
+ return 0;
+}
+
+/**
+ * Find policy by id.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param policy_id
+ * Policy id.
+ *
+ * @return
+ * Pointer to the policy found on success, NULL otherwise.
+ */
+struct mlx5_flow_meter_policy *
+mlx5_flow_meter_policy_find(struct rte_eth_dev *dev,
+ uint32_t policy_id,
+ uint32_t *policy_idx)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_sub_policy *sub_policy = NULL;
+ union mlx5_l3t_data data;
+
+ if (policy_id > MLX5_MAX_SUB_POLICY_TBL_NUM || !priv->policy_idx_tbl)
+ return NULL;
+ if (mlx5_l3t_get_entry(priv->policy_idx_tbl, policy_id, &data) ||
+ !data.dword)
+ return NULL;
+ if (policy_idx)
+ *policy_idx = data.dword;
+ sub_policy = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
+ data.dword);
+ /* Remove reference taken by the mlx5_l3t_get_entry. */
+ mlx5_l3t_clear_entry(priv->policy_idx_tbl, policy_id);
+ if (sub_policy)
+ if (sub_policy->main_policy_id)
+ return sub_policy->main_policy;
+ return NULL;
+}
+
+/**
+ * Get the last meter's policy from one meter's policy in hierarchy.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] policy
+ * Pointer to flow meter policy.
+ *
+ * @return
+ * Pointer to the final meter's policy, or NULL when fail.
+ */
+struct mlx5_flow_meter_policy *
+mlx5_flow_meter_hierarchy_get_final_policy(struct rte_eth_dev *dev,
+ struct mlx5_flow_meter_policy *policy)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_info *next_fm;
+ struct mlx5_flow_meter_policy *next_policy = policy;
+
+ while (next_policy->is_hierarchy) {
+ next_fm = mlx5_flow_meter_find(priv,
+ next_policy->act_cnt[RTE_COLOR_GREEN].next_mtr_id, NULL);
+ if (!next_fm || next_fm->def_policy)
+ return NULL;
+ next_policy = mlx5_flow_meter_policy_find(dev,
+ next_fm->policy_id, NULL);
+ MLX5_ASSERT(next_policy);
+ }
+ return next_policy;
+}
+
+/**
+ * Callback to check MTR policy action validate
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] actions
+ * Pointer to meter policy action 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_policy_validate(struct rte_eth_dev *dev,
+ struct rte_mtr_meter_policy_params *policy,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct rte_flow_attr attr = { .transfer =
+ priv->config.dv_esw_en ? 1 : 0};
+ bool is_rss = false;
+ uint8_t policy_mode;
+ uint8_t domain_bitmap;
+ int ret;
+
+ if (!priv->mtr_en || !priv->sh->meter_aso_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "meter policy unsupported.");
+ ret = mlx5_flow_validate_mtr_acts(dev, policy->actions, &attr,
+ &is_rss, &domain_bitmap, &policy_mode, error);
+ if (ret)
+ return ret;
+ return 0;
+}
+
+static int
+__mlx5_flow_meter_policy_delete(struct rte_eth_dev *dev,
+ uint32_t policy_id,
+ struct mlx5_flow_meter_policy *mtr_policy,
+ struct rte_mtr_error *error,
+ bool clear_l3t)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_sub_policy *sub_policy;
+ uint32_t i, j;
+ uint16_t sub_policy_num;
+
+ rte_spinlock_lock(&mtr_policy->sl);
+ if (mtr_policy->ref_cnt) {
+ rte_spinlock_unlock(&mtr_policy->sl);
+ return -rte_mtr_error_set(error, EBUSY,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL,
+ "Meter policy object is being used.");
+ }
+ mlx5_flow_destroy_policy_rules(dev, mtr_policy);
+ mlx5_flow_destroy_mtr_acts(dev, mtr_policy);
+ for (i = 0; i < MLX5_MTR_DOMAIN_MAX; i++) {
+ sub_policy_num = (mtr_policy->sub_policy_num >>
+ (MLX5_MTR_SUB_POLICY_NUM_SHIFT * i)) &
+ MLX5_MTR_SUB_POLICY_NUM_MASK;
+ if (sub_policy_num) {
+ for (j = 0; j < sub_policy_num; j++) {
+ sub_policy = mtr_policy->sub_policys[i][j];
+ if (sub_policy)
+ mlx5_ipool_free
+ (priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
+ sub_policy->idx);
+ }
+ }
+ }
+ if (priv->policy_idx_tbl && clear_l3t) {
+ if (mlx5_l3t_clear_entry(priv->policy_idx_tbl, policy_id)) {
+ rte_spinlock_unlock(&mtr_policy->sl);
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID, NULL,
+ "Fail to delete policy in index table.");
+ }
+ }
+ rte_spinlock_unlock(&mtr_policy->sl);
+ return 0;
+}
+
+/**
+ * Callback to add MTR policy.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[out] policy_id
+ * Pointer to policy id
+ * @param[in] actions
+ * Pointer to meter policy action 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_policy_add(struct rte_eth_dev *dev,
+ uint32_t policy_id,
+ struct rte_mtr_meter_policy_params *policy,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct rte_flow_attr attr = { .transfer =
+ priv->config.dv_esw_en ? 1 : 0};
+ uint32_t sub_policy_idx = 0;
+ uint32_t policy_idx = 0;
+ struct mlx5_flow_meter_policy *mtr_policy = NULL;
+ struct mlx5_flow_meter_sub_policy *sub_policy;
+ bool is_rss = false;
+ uint8_t policy_mode;
+ uint32_t i;
+ int ret;
+ uint32_t policy_size = sizeof(struct mlx5_flow_meter_policy);
+ uint16_t sub_policy_num;
+ uint8_t domain_bitmap = 0;
+ union mlx5_l3t_data data;
+ bool skip_rule = false;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "meter policy unsupported. ");
+ if (policy_id == MLX5_INVALID_POLICY_ID)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL, "policy ID is invalid. ");
+ if (policy_id == priv->sh->mtrmng->def_policy_id)
+ return -rte_mtr_error_set(error, EEXIST,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL, "default policy ID exists. ");
+ mtr_policy = mlx5_flow_meter_policy_find(dev, policy_id, &policy_idx);
+ if (mtr_policy)
+ return -rte_mtr_error_set(error, EEXIST,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL, "policy ID exists. ");
+ ret = mlx5_flow_validate_mtr_acts(dev, policy->actions, &attr,
+ &is_rss, &domain_bitmap,
+ &policy_mode, error);
+ if (ret)
+ return ret;
+ if (!domain_bitmap)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "fail to find policy domain.");
+ if (policy_mode == MLX5_MTR_POLICY_MODE_DEF) {
+ if (priv->sh->mtrmng->def_policy_id != MLX5_INVALID_POLICY_ID)
+ return -rte_mtr_error_set(error, EEXIST,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL, "a policy with similar actions "
+ "is already configured");
+ if (mlx5_flow_create_def_policy(dev))
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL,
+ "fail to create non-terminated policy.");
+ priv->sh->mtrmng->def_policy_id = policy_id;
+ return 0;
+ }
+ if (!priv->sh->meter_aso_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY, NULL,
+ "no ASO capability to support the policy ");
+ for (i = 0; i < MLX5_MTR_DOMAIN_MAX; i++) {
+ if (!(domain_bitmap & (1 << i)))
+ continue;
+ /*
+ * If RSS is found, it means that only the ingress domain can
+ * be supported. It is invalid to support RSS for one color
+ * and egress / transfer domain actions for another. Drop and
+ * jump action should have no impact.
+ */
+ if (is_rss) {
+ policy_size +=
+ sizeof(struct mlx5_flow_meter_sub_policy *) *
+ MLX5_MTR_RSS_MAX_SUB_POLICY;
+ break;
+ }
+ policy_size += sizeof(struct mlx5_flow_meter_sub_policy *);
+ }
+ mtr_policy = mlx5_malloc(MLX5_MEM_ZERO, policy_size,
+ RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
+ if (!mtr_policy)
+ return -rte_mtr_error_set(error, ENOMEM,
+ RTE_MTR_ERROR_TYPE_METER_POLICY, NULL,
+ "Memory alloc failed for meter policy.");
+ if (policy_mode == MLX5_MTR_POLICY_MODE_OG)
+ mtr_policy->skip_y = 1;
+ else if (policy_mode == MLX5_MTR_POLICY_MODE_OY)
+ mtr_policy->skip_g = 1;
+ policy_size = sizeof(struct mlx5_flow_meter_policy);
+ for (i = 0; i < MLX5_MTR_DOMAIN_MAX; i++) {
+ if (!(domain_bitmap & (1 << i)))
+ continue;
+ if (i == MLX5_MTR_DOMAIN_INGRESS)
+ mtr_policy->ingress = 1;
+ if (i == MLX5_MTR_DOMAIN_EGRESS)
+ mtr_policy->egress = 1;
+ if (i == MLX5_MTR_DOMAIN_TRANSFER)
+ mtr_policy->transfer = 1;
+ sub_policy = mlx5_ipool_zmalloc
+ (priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
+ &sub_policy_idx);
+ if (!sub_policy ||
+ sub_policy_idx > MLX5_MAX_SUB_POLICY_TBL_NUM)
+ goto policy_add_err;
+ sub_policy->idx = sub_policy_idx;
+ sub_policy->main_policy = mtr_policy;
+ if (!policy_idx) {
+ policy_idx = sub_policy_idx;
+ sub_policy->main_policy_id = 1;
+ }
+ mtr_policy->sub_policys[i] =
+ (struct mlx5_flow_meter_sub_policy **)
+ ((uint8_t *)mtr_policy + policy_size);
+ mtr_policy->sub_policys[i][0] = sub_policy;
+ sub_policy_num = (mtr_policy->sub_policy_num >>
+ (MLX5_MTR_SUB_POLICY_NUM_SHIFT * i)) &
+ MLX5_MTR_SUB_POLICY_NUM_MASK;
+ sub_policy_num++;
+ mtr_policy->sub_policy_num &= ~(MLX5_MTR_SUB_POLICY_NUM_MASK <<
+ (MLX5_MTR_SUB_POLICY_NUM_SHIFT * i));
+ mtr_policy->sub_policy_num |=
+ (sub_policy_num & MLX5_MTR_SUB_POLICY_NUM_MASK) <<
+ (MLX5_MTR_SUB_POLICY_NUM_SHIFT * i);
+ /*
+ * If RSS is found, it means that only the ingress domain can
+ * be supported. It is invalid to support RSS for one color
+ * and egress / transfer domain actions for another. Drop and
+ * jump action should have no impact.
+ */
+ if (is_rss) {
+ mtr_policy->is_rss = 1;
+ break;
+ }
+ policy_size += sizeof(struct mlx5_flow_meter_sub_policy *);
+ }
+ rte_spinlock_init(&mtr_policy->sl);
+ ret = mlx5_flow_create_mtr_acts(dev, mtr_policy,
+ policy->actions, error);
+ if (ret)
+ goto policy_add_err;
+ if (mtr_policy->is_hierarchy) {
+ struct mlx5_flow_meter_policy *final_policy;
+
+ final_policy =
+ mlx5_flow_meter_hierarchy_get_final_policy(dev, mtr_policy);
+ if (!final_policy)
+ goto policy_add_err;
+ skip_rule = (final_policy->is_rss || final_policy->is_queue);
+ }
+ /*
+ * If either Green or Yellow has queue / RSS action, all the policy
+ * rules will be created later in the flow splitting stage.
+ */
+ if (!is_rss && !mtr_policy->is_queue && !skip_rule) {
+ /* Create policy rules in HW. */
+ ret = mlx5_flow_create_policy_rules(dev, mtr_policy);
+ if (ret)
+ goto policy_add_err;
+ }
+ data.dword = policy_idx;
+ if (!priv->policy_idx_tbl) {
+ priv->policy_idx_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_DWORD);
+ if (!priv->policy_idx_tbl)
+ goto policy_add_err;
+ }
+ if (mlx5_l3t_set_entry(priv->policy_idx_tbl, policy_id, &data))
+ goto policy_add_err;
+ return 0;
+policy_add_err:
+ if (mtr_policy) {
+ ret = __mlx5_flow_meter_policy_delete(dev, policy_id,
+ mtr_policy, error, false);
+ mlx5_free(mtr_policy);
+ if (ret)
+ return ret;
+ }
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+ NULL, "Failed to create devx policy.");
+}
+
+/**
+ * Callback to delete MTR policy.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] policy_id
+ * Meter policy 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_policy_delete(struct rte_eth_dev *dev,
+ uint32_t policy_id,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_policy *mtr_policy;
+ uint32_t policy_idx;
+ int ret;
+
+ if (policy_id == priv->sh->mtrmng->def_policy_id) {
+ if (priv->sh->mtrmng->def_policy_ref_cnt > 0)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID, NULL,
+ "Meter policy object is being used.");
+ priv->sh->mtrmng->def_policy_id = MLX5_INVALID_POLICY_ID;
+ return 0;
+ }
+ mtr_policy = mlx5_flow_meter_policy_find(dev, policy_id, &policy_idx);
+ if (!mtr_policy)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID, NULL,
+ "Meter policy id is invalid. ");
+ ret = __mlx5_flow_meter_policy_delete(dev, policy_id, mtr_policy,
+ error, true);
+ if (ret)
+ return ret;
+ mlx5_free(mtr_policy);
+ return 0;
+}
+
+/**
+ * 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)
+{
+ /* Meter must use global drop action. */
+ if (!priv->sh->dr_drop_action)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS,
+ NULL,
+ "No drop action ready for meter.");
+ /* 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.");
+ if (params->meter_policy_id == MLX5_INVALID_POLICY_ID)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL, "Meter policy id not valid.");
+ /* Validate meter id. */
+ if (mlx5_flow_meter_find(priv, meter_id, NULL))
+ 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_info *fm,
+ const struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm,
+ uint64_t modify_bits, uint32_t active_state, uint32_t is_enable)
+{
+#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;
+ struct mlx5_aso_mtr *aso_mtr = NULL;
+ uint32_t cbs_cir, ebs_eir, val;
+
+ if (priv->sh->meter_aso_en) {
+ fm->is_enable = !!is_enable;
+ aso_mtr = container_of(fm, struct mlx5_aso_mtr, fm);
+ ret = mlx5_aso_meter_update_by_wqe(priv->sh, aso_mtr);
+ if (ret)
+ return ret;
+ ret = mlx5_aso_mtr_wait(priv->sh, aso_mtr);
+ if (ret)
+ return ret;
+ } else {
+ /* 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 =
+ MLX5_ST_SZ_BYTES(flow_meter_parameters);
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
+ mod_attr.active = !!active_state;
+ else
+ mod_attr.active = 0;
+ attr = in;
+ cbs_cir = rte_be_to_cpu_32(srtcm->cbs_cir);
+ ebs_eir = rte_be_to_cpu_32(srtcm->ebs_eir);
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS) {
+ val = (cbs_cir >> ASO_DSEG_CBS_EXP_OFFSET) &
+ ASO_DSEG_EXP_MASK;
+ MLX5_SET(flow_meter_parameters, attr,
+ cbs_exponent, val);
+ val = (cbs_cir >> ASO_DSEG_CBS_MAN_OFFSET) &
+ ASO_DSEG_MAN_MASK;
+ MLX5_SET(flow_meter_parameters, attr,
+ cbs_mantissa, val);
+ }
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR) {
+ val = (cbs_cir >> ASO_DSEG_XIR_EXP_OFFSET) &
+ ASO_DSEG_EXP_MASK;
+ MLX5_SET(flow_meter_parameters, attr,
+ cir_exponent, val);
+ val = cbs_cir & ASO_DSEG_MAN_MASK;
+ MLX5_SET(flow_meter_parameters, attr,
+ cir_mantissa, val);
+ }
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_EBS) {
+ val = (ebs_eir >> ASO_DSEG_EBS_EXP_OFFSET) &
+ ASO_DSEG_EXP_MASK;
+ MLX5_SET(flow_meter_parameters, attr,
+ ebs_exponent, val);
+ val = (ebs_eir >> ASO_DSEG_EBS_MAN_OFFSET) &
+ ASO_DSEG_MAN_MASK;
+ MLX5_SET(flow_meter_parameters, attr,
+ ebs_mantissa, val);
+ }
+ /* Apply modifications to meter only if it was created. */
+ if (fm->meter_action) {
+ ret = mlx5_glue->dv_modify_flow_action_meter
+ (fm->meter_action, &mod_attr,
+ rte_cpu_to_be_64(modify_bits));
+ if (ret)
+ return ret;
+ }
+ /* Update succeeded modify meter parameters. */
+ if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
+ fm->active_state = !!active_state;
+ }
+ return 0;
+#else
+ (void)priv;
+ (void)fm;
+ (void)srtcm;
+ (void)modify_bits;
+ (void)active_state;
+ (void)is_enable;
+ return -ENOTSUP;
+#endif
+}
+
+static int
+mlx5_flow_meter_stats_enable_update(struct rte_eth_dev *dev,
+ struct mlx5_flow_meter_info *fm,
+ uint64_t stats_mask)
+{
+ fm->bytes_dropped =
+ (stats_mask & RTE_MTR_STATS_N_BYTES_DROPPED) ? 1 : 0;
+ fm->pkts_dropped = (stats_mask & RTE_MTR_STATS_N_PKTS_DROPPED) ? 1 : 0;
+ if (fm->bytes_dropped || fm->pkts_dropped) {
+ if (!fm->drop_cnt) {
+ /* Alloc policer counters. */
+ fm->drop_cnt = mlx5_counter_alloc(dev);
+ if (!fm->drop_cnt)
+ return -1;
+ }
+ } else {
+ if (fm->drop_cnt) {
+ mlx5_counter_free(dev, fm->drop_cnt);
+ fm->drop_cnt = 0;
+ }
+ }
+ return 0;
+}
+
+/**
+ * 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_legacy_flow_meters *fms = &priv->flow_meters;
+ struct mlx5_flow_meter_profile *fmp;
+ struct mlx5_flow_meter_info *fm;
+ /* GCC fails to infer legacy_fm is set when !priv->sh->meter_aso_en. */
+ struct mlx5_legacy_flow_meter *legacy_fm = NULL;
+ struct mlx5_flow_meter_policy *mtr_policy = NULL;
+ struct mlx5_indexed_pool_config flow_ipool_cfg = {
+ .size = 0,
+ .trunk_size = 64,
+ .need_lock = 1,
+ .type = "mlx5_flow_mtr_flow_id_pool",
+ };
+ struct mlx5_aso_mtr *aso_mtr;
+ uint32_t mtr_idx, policy_idx;
+ union mlx5_l3t_data data;
+ int ret;
+ uint8_t domain_bitmap;
+ uint8_t mtr_id_bits;
+ uint8_t mtr_reg_bits = priv->mtr_reg_share ?
+ MLX5_MTR_IDLE_BITS_IN_COLOR_REG : MLX5_REG_BITS;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not supported");
+ /* 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.");
+ /* Meter policy must exist. */
+ if (params->meter_policy_id == priv->sh->mtrmng->def_policy_id) {
+ __atomic_add_fetch
+ (&priv->sh->mtrmng->def_policy_ref_cnt,
+ 1, __ATOMIC_RELAXED);
+ domain_bitmap = MLX5_MTR_ALL_DOMAIN_BIT;
+ if (!priv->config.dv_esw_en)
+ domain_bitmap &= ~MLX5_MTR_DOMAIN_TRANSFER_BIT;
+ } else {
+ if (!priv->sh->meter_aso_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Part of the policies cannot be "
+ "supported without ASO ");
+ mtr_policy = mlx5_flow_meter_policy_find(dev,
+ params->meter_policy_id, &policy_idx);
+ if (!mtr_policy)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL, "Meter policy id not valid.");
+ domain_bitmap = (mtr_policy->ingress ?
+ MLX5_MTR_DOMAIN_INGRESS_BIT : 0) |
+ (mtr_policy->egress ?
+ MLX5_MTR_DOMAIN_EGRESS_BIT : 0) |
+ (mtr_policy->transfer ?
+ MLX5_MTR_DOMAIN_TRANSFER_BIT : 0);
+ if (fmp->g_support && mtr_policy->skip_g)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL, "Meter green policy is empty.");
+ if (fmp->y_support && mtr_policy->skip_y)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
+ NULL, "Meter yellow policy is empty.");
+ }
+ /* Allocate the flow meter memory. */
+ if (priv->sh->meter_aso_en) {
+ mtr_idx = mlx5_flow_mtr_alloc(dev);
+ if (!mtr_idx)
+ return -rte_mtr_error_set(error, ENOMEM,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Memory alloc failed for meter.");
+ aso_mtr = mlx5_aso_meter_by_idx(priv, mtr_idx);
+ fm = &aso_mtr->fm;
+ } else {
+ if (fmp->y_support)
+ return -rte_mtr_error_set(error, ENOMEM,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Unsupported profile with yellow.");
+ legacy_fm = mlx5_ipool_zmalloc
+ (priv->sh->ipool[MLX5_IPOOL_MTR], &mtr_idx);
+ if (legacy_fm == NULL)
+ return -rte_mtr_error_set(error, ENOMEM,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Memory alloc failed for meter.");
+ legacy_fm->idx = mtr_idx;
+ fm = &legacy_fm->fm;
+ }
+ mtr_id_bits = MLX5_REG_BITS - __builtin_clz(mtr_idx);
+ if ((mtr_id_bits + priv->sh->mtrmng->max_mtr_flow_bits) >
+ mtr_reg_bits) {
+ DRV_LOG(ERR, "Meter number exceeds max limit.");
+ goto error;
+ }
+ if (mtr_id_bits > priv->sh->mtrmng->max_mtr_bits)
+ priv->sh->mtrmng->max_mtr_bits = mtr_id_bits;
+ /* Fill the flow meter parameters. */
+ fm->meter_id = meter_id;
+ fm->policy_id = params->meter_policy_id;
+ fm->profile = fmp;
+ if (mlx5_flow_meter_stats_enable_update(dev, fm, params->stats_mask))
+ goto error;
+ if (mlx5_flow_create_mtr_tbls(dev, fm, mtr_idx, domain_bitmap))
+ goto error;
+ /* Add to the flow meter list. */
+ if (!priv->sh->meter_aso_en) {
+ MLX5_ASSERT(legacy_fm != NULL);
+ TAILQ_INSERT_TAIL(fms, legacy_fm, next);
+ }
+ /* Add to the flow meter list. */
+ fm->active_state = 1; /* Config meter starts as active. */
+ fm->is_enable = 1;
+ fm->shared = !!shared;
+ __atomic_add_fetch(&fm->profile->ref_cnt, 1, __ATOMIC_RELAXED);
+ if (params->meter_policy_id == priv->sh->mtrmng->def_policy_id) {
+ fm->def_policy = 1;
+ fm->flow_ipool = mlx5_ipool_create(&flow_ipool_cfg);
+ if (!fm->flow_ipool)
+ goto error;
+ }
+ rte_spinlock_init(&fm->sl);
+ /* If ASO meter supported, update ASO flow meter by wqe. */
+ if (priv->sh->meter_aso_en) {
+ aso_mtr = container_of(fm, struct mlx5_aso_mtr, fm);
+ ret = mlx5_aso_meter_update_by_wqe(priv->sh, aso_mtr);
+ if (ret)
+ goto error;
+ if (!priv->mtr_idx_tbl) {
+ priv->mtr_idx_tbl =
+ mlx5_l3t_create(MLX5_L3T_TYPE_DWORD);
+ if (!priv->mtr_idx_tbl)
+ goto error;
+ }
+ data.dword = mtr_idx;
+ if (mlx5_l3t_set_entry(priv->mtr_idx_tbl, meter_id, &data))
+ goto error;
+ }
+ if (mtr_policy)
+ __atomic_add_fetch(&mtr_policy->ref_cnt, 1, __ATOMIC_RELAXED);
+ return 0;
+error:
+ mlx5_flow_destroy_mtr_tbls(dev, fm);
+ /* Free policer counters. */
+ if (fm->drop_cnt)
+ mlx5_counter_free(dev, fm->drop_cnt);
+ if (priv->sh->meter_aso_en)
+ mlx5_flow_mtr_free(dev, mtr_idx);
+ else
+ mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR], mtr_idx);
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+ NULL, "Failed to create devx meter.");
+}
+
+static int
+mlx5_flow_meter_params_flush(struct rte_eth_dev *dev,
+ struct mlx5_flow_meter_info *fm,
+ uint32_t mtr_idx)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_legacy_flow_meters *fms = &priv->flow_meters;
+ struct mlx5_flow_meter_profile *fmp;
+ struct mlx5_legacy_flow_meter *legacy_fm = NULL;
+ struct mlx5_flow_meter_policy *mtr_policy;
+
+ /* Meter object must not have any owner. */
+ MLX5_ASSERT(!fm->ref_cnt);
+ /* Get meter profile. */
+ fmp = fm->profile;
+ if (fmp == NULL)
+ return -1;
+ /* Update dependencies. */
+ __atomic_sub_fetch(&fmp->ref_cnt, 1, __ATOMIC_RELAXED);
+ fm->profile = NULL;
+ /* Remove from list. */
+ if (!priv->sh->meter_aso_en) {
+ legacy_fm = container_of(fm,
+ struct mlx5_legacy_flow_meter, fm);
+ TAILQ_REMOVE(fms, legacy_fm, next);
+ }
+ /* Free drop counters. */
+ if (fm->drop_cnt)
+ mlx5_counter_free(dev, fm->drop_cnt);
+ /* Free meter flow table. */
+ if (fm->flow_ipool) {
+ mlx5_ipool_destroy(fm->flow_ipool);
+ fm->flow_ipool = 0;
+ }
+ mlx5_flow_destroy_mtr_tbls(dev, fm);
+ if (fm->def_policy)
+ __atomic_sub_fetch(&priv->sh->mtrmng->def_policy_ref_cnt,
+ 1, __ATOMIC_RELAXED);
+ if (priv->sh->meter_aso_en) {
+ if (!fm->def_policy) {
+ mtr_policy = mlx5_flow_meter_policy_find(dev,
+ fm->policy_id, NULL);
+ if (mtr_policy)
+ __atomic_sub_fetch(&mtr_policy->ref_cnt,
+ 1, __ATOMIC_RELAXED);
+ fm->policy_id = 0;
+ }
+ fm->def_policy = 0;
+ if (mlx5_l3t_clear_entry(priv->mtr_idx_tbl, fm->meter_id))
+ return -1;
+ mlx5_flow_mtr_free(dev, mtr_idx);
+ } else {
+ mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR],
+ legacy_fm->idx);
+ }
+ return 0;
+}
+
+/**
+ * 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_meter_info *fm;
+ uint32_t mtr_idx = 0;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "Meter is not supported");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id, &mtr_idx);
+ 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.");
+ /* Destroy the meter profile. */
+ if (mlx5_flow_meter_params_flush(dev, fm, mtr_idx))
+ return -rte_mtr_error_set(error, EINVAL,
+ RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+ NULL,
+ "MTR object meter profile invalid.");
+ 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_info *fm,
+ uint32_t new_state,
+ struct rte_mtr_error *error)
+{
+ static const struct mlx5_flow_meter_srtcm_rfc2697_prm srtcm = {
+ .cbs_cir = RTE_BE32(MLX5_IFC_FLOW_METER_DISABLE_CBS_CIR_VAL),
+ .ebs_eir = 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, 0);
+ else
+ ret = mlx5_flow_meter_action_modify(priv, fm,
+ &fm->profile->srtcm_prm,
+ modify_bits, 0, 1);
+ 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_info *fm;
+ int ret;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not supported");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id, NULL);
+ 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_info *fm;
+ int ret;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not supported");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id, NULL);
+ 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_info *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 supported");
+ /* 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, NULL);
+ 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, 1);
+ if (ret) {
+ fm->profile = old_fmp;
+ return -rte_mtr_error_set(error, -ret,
+ RTE_MTR_ERROR_TYPE_MTR_PARAMS,
+ NULL, "Failed to update meter"
+ " parameters in hardware.");
+ }
+ old_fmp->ref_cnt--;
+ fmp->ref_cnt++;
+ return 0;
+}
+
+/**
+ * Callback to update meter stats mask.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_id
+ * Meter id.
+ * @param[in] stats_mask
+ * To be updated stats_mask.
+ * @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_stats_update(struct rte_eth_dev *dev,
+ uint32_t meter_id,
+ uint64_t stats_mask,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_info *fm;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not supported");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id, NULL);
+ if (fm == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_MTR_ID,
+ NULL, "Meter object id not valid.");
+ if (mlx5_flow_meter_stats_enable_update(dev, fm, stats_mask))
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_MTR_ID,
+ NULL, "Fail to allocate "
+ "counter for meter.");
+ return 0;
+}
+
+/**
+ * Callback to read meter statistics.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] meter_id
+ * Meter id.
+ * @param[out] stats
+ * Pointer to store the statistics.
+ * @param[out] stats_mask
+ * Pointer to store the stats_mask.
+ * @param[in] clear
+ * Statistic to be cleared after read 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_stats_read(struct rte_eth_dev *dev,
+ uint32_t meter_id,
+ struct rte_mtr_stats *stats,
+ uint64_t *stats_mask,
+ int clear,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_meter_info *fm;
+ uint64_t pkts;
+ uint64_t bytes;
+ int ret = 0;
+
+ if (!priv->mtr_en)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Meter is not supported");
+ /* Meter object must exist. */
+ fm = mlx5_flow_meter_find(priv, meter_id, NULL);
+ if (fm == NULL)
+ return -rte_mtr_error_set(error, ENOENT,
+ RTE_MTR_ERROR_TYPE_MTR_ID,
+ NULL, "Meter object id not valid.");
+ *stats_mask = 0;
+ if (fm->bytes_dropped)
+ *stats_mask |= RTE_MTR_STATS_N_BYTES_DROPPED;
+ if (fm->pkts_dropped)
+ *stats_mask |= RTE_MTR_STATS_N_PKTS_DROPPED;
+ memset(stats, 0, sizeof(*stats));
+ if (fm->drop_cnt) {
+ ret = mlx5_counter_query(dev, fm->drop_cnt, clear, &pkts,
+ &bytes);
+ if (ret)
+ goto error;
+ /* If need to read the packets, set it. */
+ if (fm->pkts_dropped)
+ stats->n_pkts_dropped = pkts;
+ /* If need to read the bytes, set it. */
+ if (fm->bytes_dropped)
+ stats->n_bytes_dropped = bytes;
+ }
+ return 0;
+error:
+ return -rte_mtr_error_set(error, ret, RTE_MTR_ERROR_TYPE_STATS, NULL,
+ "Failed to read meter drop counters.");
+}
+