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mlxsw: spectrum_flower: Add support for tcp flags

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Allow to offload rules that contain tcp flags within the mask.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2017-05-23 18:40:48 +02:00 committed by David S. Miller
parent dea2d6457f
commit 8a41d845c4
2 changed files with 30 additions and 0 deletions
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1
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
View File

@ -983,6 +983,7 @@ static const enum mlxsw_afk_element mlxsw_sp_acl_tcam_pattern_ipv4[] = {
MLXSW_AFK_ELEMENT_SRC_L4_PORT,
MLXSW_AFK_ELEMENT_VID,
MLXSW_AFK_ELEMENT_PCP,
MLXSW_AFK_ELEMENT_TCP_FLAGS,
};
static const enum mlxsw_afk_element mlxsw_sp_acl_tcam_pattern_ipv6[] = {

29
drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
View File

@ -178,6 +178,32 @@ static int mlxsw_sp_flower_parse_ports(struct mlxsw_sp *mlxsw_sp,
return 0;
}
static int mlxsw_sp_flower_parse_tcp(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei,
struct tc_cls_flower_offload *f,
u8 ip_proto)
{
struct flow_dissector_key_tcp *key, *mask;
if (!dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_TCP))
return 0;
if (ip_proto != IPPROTO_TCP) {
dev_err(mlxsw_sp->bus_info->dev, "TCP keys supported only for TCP\n");
return -EINVAL;
}
key = skb_flow_dissector_target(f->dissector,
FLOW_DISSECTOR_KEY_TCP,
f->key);
mask = skb_flow_dissector_target(f->dissector,
FLOW_DISSECTOR_KEY_TCP,
f->mask);
mlxsw_sp_acl_rulei_keymask_u32(rulei, MLXSW_AFK_ELEMENT_TCP_FLAGS,
ntohs(key->flags), ntohs(mask->flags));
return 0;
}
static int mlxsw_sp_flower_parse(struct mlxsw_sp *mlxsw_sp,
struct net_device *dev,
struct mlxsw_sp_acl_rule_info *rulei,
@ -284,6 +310,9 @@ static int mlxsw_sp_flower_parse(struct mlxsw_sp *mlxsw_sp,
mlxsw_sp_flower_parse_ipv6(rulei, f);
err = mlxsw_sp_flower_parse_ports(mlxsw_sp, rulei, f, ip_proto);
if (err)
return err;
err = mlxsw_sp_flower_parse_tcp(mlxsw_sp, rulei, f, ip_proto);
if (err)
return err;