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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 <erezsh@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Erez Shitrit 2016-02-21 16:27:18 +02:00 committed by Doug Ledford
parent f031396531
commit c7ce833b36
1 changed files with 4 additions and 1 deletions
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5
drivers/infiniband/hw/mlx5/cq.c
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@ -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;