diff options
| author | Eric Dumazet <edumazet@google.com> | 2018-03-28 00:21:14 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-01 20:56:37 +0300 |
| commit | ce5a453c4421ccd68a98fd987b6878923c549be2 (patch) | |
| tree | 5de68562f90a7db91c809f30d49ab9383370f320 /drivers/net | |
| parent | 2919ee2d41084aef216331d960b9e338ceff77a6 (diff) | |
| download | linux-ce5a453c4421ccd68a98fd987b6878923c549be2.tar.xz | |
net/mlx4_en: CHECKSUM_COMPLETE support for fragments
Refine the RX check summing handling to propagate the
hardware provided checksum so that we do not have to
compute it later in software.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_rx.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 05787efef492..5c613c6663da 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -821,14 +821,12 @@ xdp_drop_no_cnt: skb_record_rx_queue(skb, cq_ring); if (likely(dev->features & NETIF_F_RXCSUM)) { - if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_TCP | - MLX4_CQE_STATUS_UDP)) { + if ((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_TCP | + MLX4_CQE_STATUS_UDP)) && + (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) && + cqe->checksum == cpu_to_be16(0xffff)) { bool l2_tunnel; - if (!((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) && - cqe->checksum == cpu_to_be16(0xffff))) - goto csum_none; - l2_tunnel = (dev->hw_enc_features & NETIF_F_RXCSUM) && (cqe->vlan_my_qpn & cpu_to_be32(MLX4_CQE_L2_TUNNEL)); ip_summed = CHECKSUM_UNNECESSARY; |