net: sched: add ingress mirred action to hardware IR

TC mirred actions (redirect and mirred) can send to egress or ingress of a
device. Currently only egress is used for hw offload rules.

Modify the intermediate representation for hw offload to include mirred
actions that go to ingress. This gives drivers access to such rules and
can decide whether or not to offload them.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/flow_offload.h

@@ -117,6 +117,8 @@ enum flow_action_id {
 	FLOW_ACTION_GOTO,
 	FLOW_ACTION_REDIRECT,
 	FLOW_ACTION_MIRRED,
+	FLOW_ACTION_REDIRECT_INGRESS,
+	FLOW_ACTION_MIRRED_INGRESS,
 	FLOW_ACTION_VLAN_PUSH,
 	FLOW_ACTION_VLAN_POP,
 	FLOW_ACTION_VLAN_MANGLE,

net/sched/cls_api.c

@@ -3205,6 +3205,12 @@ int tc_setup_flow_action(struct flow_action *flow_action,
 		} else if (is_tcf_mirred_egress_mirror(act)) {
 			entry->id = FLOW_ACTION_MIRRED;
 			entry->dev = tcf_mirred_dev(act);
+		} else if (is_tcf_mirred_ingress_redirect(act)) {
+			entry->id = FLOW_ACTION_REDIRECT_INGRESS;
+			entry->dev = tcf_mirred_dev(act);
+		} else if (is_tcf_mirred_ingress_mirror(act)) {
+			entry->id = FLOW_ACTION_MIRRED_INGRESS;
+			entry->dev = tcf_mirred_dev(act);
 		} else if (is_tcf_vlan(act)) {
 			switch (tcf_vlan_action(act)) {
 			case TCA_VLAN_ACT_PUSH: