diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-11-16 17:23:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-16 23:59:13 +0300 |
| commit | b9d1ab7eb42ede51ffbb6cafffd0a521b30c12e1 (patch) | |
| tree | 98b5fe3058b3ec7e8743444fa277bfe8a98891c9 /drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | |
| parent | 9913c61c4486e2452ca848729dede6038adb6ec2 (diff) | |
| download | linux-b9d1ab7eb42ede51ffbb6cafffd0a521b30c12e1.tar.xz | |
mlx4: use netdev_rss_key_fill() helper
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>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index 6c643230a5ed..710cf309962a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -973,6 +973,11 @@ static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev) return priv->rx_ring_num; } +static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev) +{ + return MLX4_EN_RSS_KEY_SIZE; +} + static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key) { struct mlx4_en_priv *priv = netdev_priv(dev); @@ -988,7 +993,8 @@ static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key) ring_index[n] = rss_map->qps[n % rss_rings].qpn - rss_map->base_qpn; } - + if (key) + netdev_rss_key_fill(key, MLX4_EN_RSS_KEY_SIZE); return err; } @@ -1799,6 +1805,7 @@ const struct ethtool_ops mlx4_en_ethtool_ops = { .get_rxnfc = mlx4_en_get_rxnfc, .set_rxnfc = mlx4_en_set_rxnfc, .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size, + .get_rxfh_key_size = mlx4_en_get_rxfh_key_size, .get_rxfh = mlx4_en_get_rxfh, .set_rxfh = mlx4_en_set_rxfh, .get_channels = mlx4_en_get_channels, |