Function flow_dv_mreg_create_cb

dpdk/drivers/net/mlx5/mlx5_flow.c:5049–5163

}

struct mlx5_list_entry *
flow_dv_mreg_create_cb(void *tool_ctx, void *cb_ctx)
{
	struct rte_eth_dev *dev = tool_ctx;
	struct mlx5_priv *priv = dev->data->dev_private;
	struct mlx5_flow_cb_ctx *ctx = cb_ctx;
	struct mlx5_flow_mreg_copy_resource *mcp_res;
	struct rte_flow_error *error = ctx->error;
	uint32_t idx = 0;
	int ret;
	uint32_t mark_id = *(uint32_t *)(ctx->data);
	struct rte_flow_attr attr = {
		.group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
		.ingress = 1,
	};
	struct mlx5_rte_flow_item_tag tag_spec = {
		.data = mark_id,
	};
	struct rte_flow_item items[] = {
		[1] = { .type = RTE_FLOW_ITEM_TYPE_END, },
	};
	struct rte_flow_action_mark ftag = {
		.id = mark_id,
	};
	struct mlx5_flow_action_copy_mreg cp_mreg = {
		.dst = REG_B,
		.src = REG_NON,
	};
	struct rte_flow_action_jump jump = {
		.group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
	};
	struct rte_flow_action actions[] = {
		[3] = { .type = RTE_FLOW_ACTION_TYPE_END, },
	};

	/* Fill the register fields in the flow. */
	ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error);
	if (ret < 0)
		return NULL;
	tag_spec.id = ret;
	ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
	if (ret < 0)
		return NULL;
	cp_mreg.src = ret;
	/* Provide the full width of FLAG specific value. */
	if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT))
		tag_spec.data = MLX5_FLOW_MARK_DEFAULT;
	/* Build a new flow. */
	if (mark_id != MLX5_DEFAULT_COPY_ID) {
		items[0] = (struct rte_flow_item){
			.type = (enum rte_flow_item_type)
				MLX5_RTE_FLOW_ITEM_TYPE_TAG,
			.spec = &tag_spec,
		};
		items[1] = (struct rte_flow_item){
			.type = RTE_FLOW_ITEM_TYPE_END,
		};
		actions[0] = (struct rte_flow_action){