From c7ce833b364bc19ef51b3c973c94a863e4af0e06 Mon Sep 17 00:00:00 2001 From: Erez Shitrit Date: Sun, 21 Feb 2016 16:27:18 +0200 Subject: [PATCH] IB/mlx5: Add support for CSUM in RX flow The driver checks the csum from the HW when completion arrived and marks it in the wc->wc_flags field for the ulp drivers. These is for packets from type IB_WC_RECV only. Signed-off-by: Erez Shitrit Signed-off-by: Eran Ben Elisha Reviewed-by: Leon Romanovsky Signed-off-by: Doug Ledford --- drivers/infiniband/hw/mlx5/cq.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index fd1de31e0611..5ece9a89f7c2 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -207,7 +207,10 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe, break; case MLX5_CQE_RESP_SEND: wc->opcode = IB_WC_RECV; - wc->wc_flags = 0; + wc->wc_flags = IB_WC_IP_CSUM_OK; + if (unlikely(!((cqe->hds_ip_ext & CQE_L3_OK) && + (cqe->hds_ip_ext & CQE_L4_OK)))) + wc->wc_flags = 0; break; case MLX5_CQE_RESP_SEND_IMM: wc->opcode = IB_WC_RECV; -- 2.39.5