tc: flower: support masked ICMP code and type match

Extend ICMP code and type match to support masks.

Also add missing documentation to synopsis in manpage.

tc qdisc add dev eth0 ingress
tc filter add dev eth0 protocol ipv6 parent ffff: flower \
	indev eth0 ip_proto icmpv6 type 128/240 code 0 action drop

Signed-off-by: Simon Horman <simon.horman@netronome.com>
2 files changed