Add new matching type for ip_proto. Use it in the same lookup type as for TTL. In hardware it has the same protocol ID, but different offset.
Example command to add filter with ip_proto: $tc filter add dev eth10 ingress protocol ip flower ip_proto icmp \ skip_sw action mirred egress redirect dev eth0 Reviewed-by: Jedrzej Jagielski <[email protected]> Signed-off-by: Michal Swiatkowski <[email protected]> --- drivers/net/ethernet/intel/ice/ice_tc_lib.c | 17 +++++++++++++++-- drivers/net/ethernet/intel/ice/ice_tc_lib.h | 1 + 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.c b/drivers/net/ethernet/intel/ice/ice_tc_lib.c index 49ed5fd7db10..f7c0f62fb730 100644 --- a/drivers/net/ethernet/intel/ice/ice_tc_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.c @@ -78,7 +78,8 @@ ice_tc_count_lkups(u32 flags, struct ice_tc_flower_lyr_2_4_hdrs *headers, ICE_TC_FLWR_FIELD_DEST_IPV6 | ICE_TC_FLWR_FIELD_SRC_IPV6)) lkups_cnt++; - if (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL)) + if (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL | + ICE_TC_FLWR_FIELD_IP_PROTO)) lkups_cnt++; /* are L2TPv3 options specified? */ @@ -530,7 +531,8 @@ ice_tc_fill_rules(struct ice_hw *hw, u32 flags, } if (headers->l2_key.n_proto == htons(ETH_P_IP) && - (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL))) { + (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL | + ICE_TC_FLWR_FIELD_IP_PROTO))) { list[i].type = ice_proto_type_from_ipv4(inner); if (flags & ICE_TC_FLWR_FIELD_IP_TOS) { @@ -545,6 +547,13 @@ ice_tc_fill_rules(struct ice_hw *hw, u32 flags, headers->l3_mask.ttl; } + if (flags & ICE_TC_FLWR_FIELD_IP_PROTO) { + list[i].h_u.ipv4_hdr.protocol = + headers->l3_key.ip_proto; + list[i].m_u.ipv4_hdr.protocol = + headers->l3_mask.ip_proto; + } + i++; } @@ -1515,7 +1524,11 @@ ice_parse_cls_flower(struct net_device *filter_dev, struct ice_vsi *vsi, headers->l2_key.n_proto = cpu_to_be16(n_proto_key); headers->l2_mask.n_proto = cpu_to_be16(n_proto_mask); + + if (match.key->ip_proto) + fltr->flags |= ICE_TC_FLWR_FIELD_IP_PROTO; headers->l3_key.ip_proto = match.key->ip_proto; + headers->l3_mask.ip_proto = match.mask->ip_proto; } if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.h b/drivers/net/ethernet/intel/ice/ice_tc_lib.h index 65d387163a46..856f371d0687 100644 --- a/drivers/net/ethernet/intel/ice/ice_tc_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.h @@ -34,6 +34,7 @@ #define ICE_TC_FLWR_FIELD_VLAN_PRIO BIT(27) #define ICE_TC_FLWR_FIELD_CVLAN_PRIO BIT(28) #define ICE_TC_FLWR_FIELD_VLAN_TPID BIT(29) +#define ICE_TC_FLWR_FIELD_IP_PROTO BIT(30) #define ICE_TC_FLOWER_MASK_32 0xFFFFFFFF -- 2.42.0
