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authorEli Cohen <eli@dev.mellanox.co.il>2008-04-16 21:01:10 -0700
committerRoland Dreier <rolandd@cisco.com>2008-04-16 21:01:10 -0700
commit8ff095ec4bce7be943beff3b330562e2f0e42167 (patch)
treed0643b575033a033a072c2c0687be7e57d183d99 /include/linux/mlx4/cq.h
parent6046136c742e32d5e6431cdcd8957638d1816821 (diff)
downloadlinux-next-8ff095ec4bce7be943beff3b330562e2f0e42167.tar.gz
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 'include/linux/mlx4/cq.h')
-rw-r--r--include/linux/mlx4/cq.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/mlx4/cq.h b/include/linux/mlx4/cq.h
index 0181e0a57cbf..1243ebace561 100644
--- a/include/linux/mlx4/cq.h
+++ b/include/linux/mlx4/cq.h
@@ -45,11 +45,11 @@ struct mlx4_cqe {
u8 sl;
u8 reserved1;
__be16 rlid;
- u32 reserved2;
+ __be32 ipoib_status;
__be32 byte_cnt;
__be16 wqe_index;
__be16 checksum;
- u8 reserved3[3];
+ u8 reserved2[3];
u8 owner_sr_opcode;
};
@@ -85,6 +85,16 @@ enum {
MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR = 0x22,
};
+enum {
+ MLX4_CQE_IPOIB_STATUS_IPV4 = 1 << 22,
+ MLX4_CQE_IPOIB_STATUS_IPV4F = 1 << 23,
+ MLX4_CQE_IPOIB_STATUS_IPV6 = 1 << 24,
+ MLX4_CQE_IPOIB_STATUS_IPV4OPT = 1 << 25,
+ MLX4_CQE_IPOIB_STATUS_TCP = 1 << 26,
+ MLX4_CQE_IPOIB_STATUS_UDP = 1 << 27,
+ MLX4_CQE_IPOIB_STATUS_IPOK = 1 << 28,
+};
+
static inline void mlx4_cq_arm(struct mlx4_cq *cq, u32 cmd,
void __iomem *uar_page,
spinlock_t *doorbell_lock)