summaryrefslogtreecommitdiffstats
path: root/drivers/net/mlx4/fw.c
diff options
context:
space:
mode:
authorEli Cohen <eli@dev.mellanox.co.il>2008-04-17 06:01:10 +0200
committerRoland Dreier <rolandd@cisco.com>2008-04-17 06:01:10 +0200
commit8ff095ec4bce7be943beff3b330562e2f0e42167 (patch)
treed0643b575033a033a072c2c0687be7e57d183d99 /drivers/net/mlx4/fw.c
parentIPoIB: Use checksum offload support if available (diff)
downloadlinux-8ff095ec4bce7be943beff3b330562e2f0e42167.tar.xz
linux-8ff095ec4bce7be943beff3b330562e2f0e42167.zip
IB/mlx4: Add IPoIB checksum offload support
ConnectX devices support checksum generation and verification of TCP and UDP packets for UD IPoIB messages. This patch checks if the HCA supports this and sets the IB_DEVICE_UD_IP_CSUM capability flag if it does. It implements support for handling the IB_SEND_IP_CSUM send flag and setting the csum_ok field in receive work completions. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Ali Ayub <ali@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net/mlx4/fw.c')
-rw-r--r--drivers/net/mlx4/fw.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
index 61dc4951d6b0..f494c3e8bce3 100644
--- a/drivers/net/mlx4/fw.c
+++ b/drivers/net/mlx4/fw.c
@@ -696,6 +696,10 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
/* Check port for UD address vector: */
*(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
+ /* Enable IPoIB checksumming if we can: */
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
+ *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3);
+
/* QPC/EEC/CQC/EQC/RDMARC attributes */
MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET);