+/**
+ * Validate meter policy actions.
+ * Dispatcher for action type specific validation.
+ *
+ * @param[in] dev
+ * Pointer to the Ethernet device structure.
+ * @param[in] action
+ * The meter policy action object to validate.
+ * @param[in] attr
+ * Attributes of flow to determine steering domain.
+ * @param[out] error
+ * Perform verbose error reporting if not NULL. Initialized in case of
+ * error only.
+ *
+ * @return
+ * 0 on success, otherwise negative errno value.
+ */
+static int
+flow_dv_validate_mtr_policy_acts(struct rte_eth_dev *dev,
+ const struct rte_flow_action *actions[RTE_COLORS],
+ struct rte_flow_attr *attr,
+ bool *is_rss,
+ uint8_t *domain_bitmap,
+ bool *is_def_policy,
+ struct rte_mtr_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_dev_config *dev_conf = &priv->config;
+ const struct rte_flow_action *act;
+ uint64_t action_flags = 0;
+ int actions_n;
+ int i, ret;
+ struct rte_flow_error flow_err;
+ uint8_t domain_color[RTE_COLORS] = {0};
+ uint8_t def_domain = MLX5_MTR_ALL_DOMAIN_BIT;
+
+ if (!priv->config.dv_esw_en)
+ def_domain &= ~MLX5_MTR_DOMAIN_TRANSFER_BIT;
+ *domain_bitmap = def_domain;
+ if (actions[RTE_COLOR_YELLOW] &&
+ actions[RTE_COLOR_YELLOW]->type != RTE_FLOW_ACTION_TYPE_END)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL,
+ "Yellow color does not support any action.");
+ if (actions[RTE_COLOR_YELLOW] &&
+ actions[RTE_COLOR_YELLOW]->type != RTE_FLOW_ACTION_TYPE_DROP)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "Red color only supports drop action.");
+ /*
+ * Check default policy actions:
+ * Green/Yellow: no action, Red: drop action
+ */
+ if ((!actions[RTE_COLOR_GREEN] ||
+ actions[RTE_COLOR_GREEN]->type == RTE_FLOW_ACTION_TYPE_END)) {
+ *is_def_policy = true;
+ return 0;
+ }
+ flow_err.message = NULL;
+ for (i = 0; i < RTE_COLORS; i++) {
+ act = actions[i];
+ for (action_flags = 0, actions_n = 0;
+ act && act->type != RTE_FLOW_ACTION_TYPE_END;
+ act++) {
+ if (actions_n == MLX5_DV_MAX_NUMBER_OF_ACTIONS)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "too many actions");
+ switch (act->type) {
+ case RTE_FLOW_ACTION_TYPE_PORT_ID:
+ if (!priv->config.dv_esw_en)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "PORT action validate check"
+ " fail for ESW disable");
+ ret = flow_dv_validate_action_port_id(dev,
+ action_flags,
+ act, attr, &flow_err);
+ if (ret)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, flow_err.message ?
+ flow_err.message :
+ "PORT action validate check fail");
+ ++actions_n;
+ action_flags |= MLX5_FLOW_ACTION_PORT_ID;
+ break;
+ case RTE_FLOW_ACTION_TYPE_MARK:
+ ret = flow_dv_validate_action_mark(dev, act,
+ action_flags,
+ attr, &flow_err);
+ if (ret < 0)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, flow_err.message ?
+ flow_err.message :
+ "Mark action validate check fail");
+ if (dev_conf->dv_xmeta_en !=
+ MLX5_XMETA_MODE_LEGACY)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "Extend MARK action is "
+ "not supported. Please try use "
+ "default policy for meter.");
+ action_flags |= MLX5_FLOW_ACTION_MARK;
+ ++actions_n;
+ break;
+ case RTE_FLOW_ACTION_TYPE_SET_TAG:
+ ret = flow_dv_validate_action_set_tag(dev,
+ act, action_flags,
+ attr, &flow_err);
+ if (ret)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, flow_err.message ?
+ flow_err.message :
+ "Set tag action validate check fail");
+ /*
+ * Count all modify-header actions
+ * as one action.
+ */
+ if (!(action_flags &
+ MLX5_FLOW_MODIFY_HDR_ACTIONS))
+ ++actions_n;
+ action_flags |= MLX5_FLOW_ACTION_SET_TAG;
+ break;
+ case RTE_FLOW_ACTION_TYPE_DROP:
+ ret = mlx5_flow_validate_action_drop
+ (action_flags,
+ attr, &flow_err);
+ if (ret < 0)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, flow_err.message ?
+ flow_err.message :
+ "Drop action validate check fail");
+ action_flags |= MLX5_FLOW_ACTION_DROP;
+ ++actions_n;
+ break;
+ case RTE_FLOW_ACTION_TYPE_QUEUE:
+ /*
+ * Check whether extensive
+ * metadata feature is engaged.
+ */
+ if (dev_conf->dv_flow_en &&
+ (dev_conf->dv_xmeta_en !=
+ MLX5_XMETA_MODE_LEGACY) &&
+ mlx5_flow_ext_mreg_supported(dev))
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "Queue action with meta "
+ "is not supported. Please try use "
+ "default policy for meter.");
+ ret = mlx5_flow_validate_action_queue(act,
+ action_flags, dev,
+ attr, &flow_err);
+ if (ret < 0)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, flow_err.message ?
+ flow_err.message :
+ "Queue action validate check fail");
+ action_flags |= MLX5_FLOW_ACTION_QUEUE;
+ ++actions_n;
+ break;
+ case RTE_FLOW_ACTION_TYPE_RSS:
+ if (dev_conf->dv_flow_en &&
+ (dev_conf->dv_xmeta_en !=
+ MLX5_XMETA_MODE_LEGACY) &&
+ mlx5_flow_ext_mreg_supported(dev))
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "RSS action with meta "
+ "is not supported. Please try use "
+ "default policy for meter.");
+ ret = mlx5_validate_action_rss(dev, act,
+ &flow_err);
+ if (ret < 0)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, flow_err.message ?
+ flow_err.message :
+ "RSS action validate check fail");
+ action_flags |= MLX5_FLOW_ACTION_RSS;
+ ++actions_n;
+ *is_rss = true;
+ break;
+ case RTE_FLOW_ACTION_TYPE_JUMP:
+ ret = flow_dv_validate_action_jump(dev,
+ NULL, act, action_flags,
+ attr, true, &flow_err);
+ if (ret)
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, flow_err.message ?
+ flow_err.message :
+ "Jump action validate check fail");
+ ++actions_n;
+ action_flags |= MLX5_FLOW_ACTION_JUMP;
+ break;
+ default:
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL,
+ "Doesn't support optional action");
+ }
+ }
+ /* Yellow is not supported, just skip. */
+ if (i == RTE_COLOR_YELLOW)
+ continue;
+ if (action_flags & MLX5_FLOW_ACTION_PORT_ID)
+ domain_color[i] = MLX5_MTR_DOMAIN_TRANSFER_BIT;
+ else if ((action_flags &
+ (MLX5_FLOW_ACTION_RSS | MLX5_FLOW_ACTION_QUEUE)) ||
+ (action_flags & MLX5_FLOW_ACTION_MARK))
+ /*
+ * Only support MLX5_XMETA_MODE_LEGACY
+ * so MARK action only in ingress domain.
+ */
+ domain_color[i] = MLX5_MTR_DOMAIN_INGRESS_BIT;
+ else
+ domain_color[i] = def_domain;
+ /*
+ * Validate the drop action mutual exclusion
+ * with other actions. Drop action is mutually-exclusive
+ * with any other action, except for Count action.
+ */
+ if ((action_flags & MLX5_FLOW_ACTION_DROP) &&
+ (action_flags & ~MLX5_FLOW_ACTION_DROP)) {
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "Drop action is mutually-exclusive "
+ "with any other action");
+ }
+ /* Eswitch has few restrictions on using items and actions */
+ if (domain_color[i] & MLX5_MTR_DOMAIN_TRANSFER_BIT) {
+ if (!mlx5_flow_ext_mreg_supported(dev) &&
+ action_flags & MLX5_FLOW_ACTION_MARK)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "unsupported action MARK");
+ if (action_flags & MLX5_FLOW_ACTION_QUEUE)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "unsupported action QUEUE");
+ if (action_flags & MLX5_FLOW_ACTION_RSS)
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "unsupported action RSS");
+ if (!(action_flags & MLX5_FLOW_FATE_ESWITCH_ACTIONS))
+ return -rte_mtr_error_set(error, ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "no fate action is found");
+ } else {
+ if (!(action_flags & MLX5_FLOW_FATE_ACTIONS) &&
+ (domain_color[i] &
+ MLX5_MTR_DOMAIN_INGRESS_BIT)) {
+ if ((domain_color[i] &
+ MLX5_MTR_DOMAIN_EGRESS_BIT))
+ domain_color[i] =
+ MLX5_MTR_DOMAIN_EGRESS_BIT;
+ else
+ return -rte_mtr_error_set(error,
+ ENOTSUP,
+ RTE_MTR_ERROR_TYPE_METER_POLICY,
+ NULL, "no fate action is found");
+ }
+ }
+ if (domain_color[i] != def_domain)
+ *domain_bitmap = domain_color[i];
+ }
+ return 0;
+}
+