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net/mlx5e: Offload TC matching on ip tos / traffic-class

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Enable offloading of TC matching on ipv4 tos or ipv6 traffic-class.

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 21:37:40 +03:00 committed by David S. Miller
parent e77834ec0a
commit fd7da28b28
1 changed files with 25 additions and 1 deletions
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26
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
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@ -582,7 +582,8 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) |
BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) |
BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) |
BIT(FLOW_DISSECTOR_KEY_TCP))) {
BIT(FLOW_DISSECTOR_KEY_TCP) |
BIT(FLOW_DISSECTOR_KEY_IP))) {
netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n",
f->dissector->used_keys);
return -EOPNOTSUPP;
@ -809,6 +810,29 @@ 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_IP)) {
struct flow_dissector_key_ip *key =
skb_flow_dissector_target(f->dissector,
FLOW_DISSECTOR_KEY_IP,
f->key);
struct flow_dissector_key_ip *mask =
skb_flow_dissector_target(f->dissector,
FLOW_DISSECTOR_KEY_IP,
f->mask);
MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_ecn, mask->tos & 0x3);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, key->tos & 0x3);
MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_dscp, mask->tos >> 2);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, key->tos >> 2);
if (mask->tos)
*min_inline = MLX5_INLINE_MODE_IP;
if (mask->ttl) /* currently not supported */
return -EOPNOTSUPP;
}
if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_TCP)) {
struct flow_dissector_key_tcp *key =
skb_flow_dissector_target(f->dissector,