netdev - [PATCH mlx5-next 9/9] net/mlx5: TX WQE Add trailer insertion field

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Date:   Fri, 24 Apr 2020 12:45:10 -0700
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        Leon Romanovsky <leonro@...lanox.com>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        Raed Salem <raeds@...lanox.com>
Subject: [PATCH mlx5-next 9/9] net/mlx5: TX WQE Add trailer insertion field

From: Raed Salem <raeds@...lanox.com>

Add new TX WQE field for Connect-X6DX trailer insertion support,
when set, the HW adds a trailer to the packet, the WQE trailer
association flags are used to set to HW the header which the
trailer belongs.

Signed-off-by: Raed Salem <raeds@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 include/linux/mlx5/qp.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index ef127a156a62..f23eb18526fe 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -229,6 +229,11 @@ enum {
 
 enum {
 	MLX5_ETH_WQE_SVLAN              = 1 << 0,
+	MLX5_ETH_WQE_TRAILER_HDR_OUTER_IP_ASSOC = 1 << 26,
+	MLX5_ETH_WQE_TRAILER_HDR_OUTER_L4_ASSOC = 1 << 27,
+	MLX5_ETH_WQE_TRAILER_HDR_INNER_IP_ASSOC = 3 << 26,
+	MLX5_ETH_WQE_TRAILER_HDR_INNER_L4_ASSOC = 1 << 28,
+	MLX5_ETH_WQE_INSERT_TRAILER     = 1 << 30,
 	MLX5_ETH_WQE_INSERT_VLAN        = 1 << 15,
 };
 
@@ -257,6 +262,7 @@ struct mlx5_wqe_eth_seg {
 			__be16 type;
 			__be16 vlan_tci;
 		} insert;
+		__be32 trailer;
 	};
 };
 
-- 
2.25.3