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net/mlx5e: Offload TC matching on tcp flags 

Enable offloading of TC matching on tcp flags.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Or Gerlitz 2017-06-01 21:37:39 +03:00 committed by David S. Miller
parent 4d80cc0aaa
commit e77834ec0a
1 changed files with 21 additions and 1 deletions
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22
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
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@ -581,7 +581,8 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) |
BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) |
BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) |
BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL))) {
BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) |
BIT(FLOW_DISSECTOR_KEY_TCP))) {
netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n",
f->dissector->used_keys);
return -EOPNOTSUPP;
@ -808,6 +809,25 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
*min_inline = MLX5_INLINE_MODE_TCP_UDP;
}
if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_TCP)) {
struct flow_dissector_key_tcp *key =
skb_flow_dissector_target(f->dissector,
FLOW_DISSECTOR_KEY_TCP,
f->key);
struct flow_dissector_key_tcp *mask =
skb_flow_dissector_target(f->dissector,
FLOW_DISSECTOR_KEY_TCP,
f->mask);
MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_flags,
ntohs(mask->flags));
MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_flags,
ntohs(key->flags));
if (mask->flags)
*min_inline = MLX5_INLINE_MODE_TCP_UDP;
}
return 0;
}