[dpdk-dev] [PATCH v3 03/17] net/mlx5: use meter color reg for CT

[Bing Zhao]

Based on the capacity, 3 registers could be used. Due to the register
allocation, only the one REG_C_3 for meter color could be reused
right now.

Then in the same flow, no more than one ASO action can be supported.

Signed-off-by: Bing Zhao <bi...@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow.c | 4 +++-
 drivers/net/mlx5/mlx5_flow.h | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index a7ceafe221..edad6007a8 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -760,7 +760,9 @@ mlx5_flow_get_reg_id(struct rte_eth_dev *dev,
                        return priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
                               REG_C_3;
        case MLX5_MTR_COLOR:
-       case MLX5_ASO_FLOW_HIT: /* Both features use the same REG_C. */
+       case MLX5_ASO_FLOW_HIT:
+       case MLX5_ASO_CONNTRACK:
+               /* All features use the same REG_C. */
                MLX5_ASSERT(priv->mtr_color_reg != REG_NON);
                return priv->mtr_color_reg;
        case MLX5_COPY_MARK:
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index cc3e79d088..964e13a869 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -84,6 +84,7 @@ enum mlx5_feature_name {
        MLX5_MTR_COLOR,
        MLX5_MTR_ID,
        MLX5_ASO_FLOW_HIT,
+       MLX5_ASO_CONNTRACK,
 };
 
 /* Default queue number. */
-- 
2.27.0