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mlx4: use netdev_rss_key_fill() helper

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Use of well known RSS key increases attack surface.
Switch to a random one, using generic helper so that all
ports share a common key.

Also provide ethtool -x support to fetch RSS key

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2014-11-16 06:23:16 -08:00
committed by David S. Miller
parent 9913c61c44
commit b9d1ab7eb4
3 changed files with 12 additions and 7 deletions
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4
include/linux/mlx4/qp.h
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@@ -120,13 +120,15 @@ enum {
MLX4_RSS_QPC_FLAG_OFFSET = 13,
};
#define MLX4_EN_RSS_KEY_SIZE 40
struct mlx4_rss_context {
__be32 base_qpn;
__be32 default_qpn;
u16 reserved;
u8 hash_fn;
u8 flags;
__be32 rss_key[10];
__be32 rss_key[MLX4_EN_RSS_KEY_SIZE / sizeof(__be32)];
__be32 base_qpn_udp;
};