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authorShani Michaeli <shanim@mellanox.com>2014-11-09 13:51:53 +0200
committerDavid S. Miller <davem@davemloft.net>2014-11-11 13:20:02 -0500
commitf8c6455bb04b944edb69e9b074e28efee2c56bdd (patch)
tree9f4f031bb3a33ea164aa2014294c027c478e1d7e /include/linux/mlx4
parentdd65beac48a5259945846956d4b27344dfb73bd9 (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 'include/linux/mlx4')
-rw-r--r--include/linux/mlx4/device.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 5cc5eac47d1b..3d9bff00f24a 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -497,6 +497,7 @@ struct mlx4_caps {
u16 hca_core_clock;
u64 phys_port_id[MLX4_MAX_PORTS + 1];
int tunnel_offload_mode;
+ u8 rx_checksum_flags_port[MLX4_MAX_PORTS + 1];
};
struct mlx4_buf_list {