diff options
| author | Shani Michaeli <shanim@mellanox.com> | 2014-11-09 13:51:53 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-11 13:20:02 -0500 |
| commit | f8c6455bb04b944edb69e9b074e28efee2c56bdd (patch) | |
| tree | 9f4f031bb3a33ea164aa2014294c027c478e1d7e /drivers/net/ethernet/mellanox/mlx4/main.c | |
| parent | dd65beac48a5259945846956d4b27344dfb73bd9 (diff) | |
net/mlx4_en: Extend checksum offloading by CHECKSUM COMPLETE
When processing received traffic, pass CHECKSUM_COMPLETE status to the
stack, with calculated checksum for non TCP/UDP packets (such
as GRE or ICMP).
Although the stack expects checksum which doesn't include the pseudo
header, the HW adds it. To address that, we are subtracting the pseudo
header checksum from the checksum value provided by the HW.
In the IPv6 case, we also compute/add the IP header checksum which
is not added by the HW for such packets.
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/main.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/main.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 9f821964a1b9..2f6ba420ac03 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1629,6 +1629,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) struct mlx4_init_hca_param init_hca; u64 icm_size; int err; + struct mlx4_config_dev_params params; if (!mlx4_is_slave(dev)) { err = mlx4_QUERY_FW(dev); @@ -1762,6 +1763,14 @@ static int mlx4_init_hca(struct mlx4_dev *dev) goto unmap_bf; } + /* Query CONFIG_DEV parameters */ + err = mlx4_config_dev_retrieval(dev, ¶ms); + if (err && err != -ENOTSUPP) { + mlx4_err(dev, "Failed to query CONFIG_DEV parameters\n"); + } else if (!err) { + dev->caps.rx_checksum_flags_port[1] = params.rx_csum_flags_port_1; + dev->caps.rx_checksum_flags_port[2] = params.rx_csum_flags_port_2; + } priv->eq_table.inta_pin = adapter.inta_pin; memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id); |