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net: mscc: ocelot: Hardware ofload for tc flower filter

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Hardware offload of port filtering are now supported via tc command using
flower filter. ACL rules are used to enable the hardware offload.
The following keys are supported:

vlan_id
vlan_prio
dst_mac/src_mac for non IP frames
dst_ip/src_ip
dst_port/src_port

The following actions are supported:
trap
drop

These filters are supported only on the ingress schedulare.

Add:
tc qdisc add dev eth3 ingress
tc filter ad dev eth3 parent ffff: ip_proto ip flower \
    ip_proto tcp dst_port 80 action drop

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Horatiu Vultur
2019-05-31 09:16:57 +02:00
committed by David S. Miller
parent b596229448
commit fe3490e610
4 changed files with 373 additions and 7 deletions
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5
drivers/net/ethernet/mscc/ocelot_ace.h
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@@ -224,4 +224,9 @@ int ocelot_ace_rule_stats_update(struct ocelot_ace_rule *rule);
int ocelot_ace_init(struct ocelot *ocelot);
void ocelot_ace_deinit(void);
int ocelot_setup_tc_block_flower_bind(struct ocelot_port *port,
struct tc_block_offload *f);
void ocelot_setup_tc_block_flower_unbind(struct ocelot_port *port,
struct tc_block_offload *f);
#endif /* _MSCC_OCELOT_ACE_H_ */