net/mlx5e: HW_GRO cqe handler implementation

this patch updates the SHAMPO CQE handler to support HW_GRO,

changes in the SHAMPO CQE handler:
- CQE match and flush fields are used to determine if to build new skb
  using the new received packet,
  or to add the received packet data to the existing RQ.hw_gro_skb,
  also this fields are used to determine when to flush the skb.
- in the end of the function mlx5e_poll_rx_cq the RQ.hw_gro_skb is flushed.

Signed-off-by: Khalid Manaa <khalidm@nvidia.com>
Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index c95b6b65c4de..67453dd75b93 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -655,6 +655,12 @@ struct mlx5e_shampo_hd {
 	u64 last_addr;
 };
 
+struct mlx5e_hw_gro_data {
+	struct sk_buff *skb;
+	struct flow_keys fk;
+	int second_ip_id;
+};
+
 struct mlx5e_rq {
 	/* data path */
 	union {
@@ -696,6 +702,8 @@ struct mlx5e_rq {
 	struct mlx5e_icosq    *icosq;
 	struct mlx5e_priv     *priv;
 
+	struct mlx5e_hw_gro_data *hw_gro_data;
+
 	mlx5e_fp_handle_rx_cqe handle_rx_cqe;
 	mlx5e_fp_post_rx_wqes  post_wqes;
 	mlx5e_fp_dealloc_wqe   dealloc_wqe;