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IB/mlx4: Add support to RSS hash for inner headers

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Support RSS hash for inner headers according to a new flag,
MLX4_IB_RX_HASH_INNER provided by the vendor channel.

In case the flag is set, RSS hash will be done on the inner headers of
VXLAN packets (which are encapsulated).
Non-encapsulated packets will be hashed according to the outer headers.

Signed-off-by: Guy Levi <guyle@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Guy Levi 2017-12-24 14:51:24 +02:00 • committed by Jason Gunthorpe
parent 76a895d9e1
commit 07d84f7b6a
3 changed files with 24 additions and 3 deletions
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7
include/uapi/rdma/mlx4-abi.h
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@ -97,8 +97,8 @@ struct mlx4_ib_create_srq_resp {
};
struct mlx4_ib_create_qp_rss {
__u64 rx_hash_fields_mask;
__u8 rx_hash_function;
__u64 rx_hash_fields_mask; /* Use enum mlx4_ib_rx_hash_fields */
__u8 rx_hash_function; /* Use enum mlx4_ib_rx_hash_function_flags */
__u8 reserved[7];
__u8 rx_hash_key[40];
__u32 comp_mask;
@ -152,7 +152,8 @@ enum mlx4_ib_rx_hash_fields {
MLX4_IB_RX_HASH_SRC_PORT_TCP = 1 << 4,
MLX4_IB_RX_HASH_DST_PORT_TCP = 1 << 5,
MLX4_IB_RX_HASH_SRC_PORT_UDP = 1 << 6,
MLX4_IB_RX_HASH_DST_PORT_UDP = 1 << 7
MLX4_IB_RX_HASH_DST_PORT_UDP = 1 << 7,
MLX4_IB_RX_HASH_INNER = 1ULL << 31,
};
#endif /* MLX4_ABI_USER_H */