ice: VXLAN and Geneve TC support

Add definition for VXLAN and Geneve dummy packet. Define VXLAN and
Geneve type of fields to match on correct UDP tunnel header.

Parse tunnel specific fields from TC tool like outer MACs, outer IPs,
outer destination port and VNI. Save values and masks in outer header
struct and move header pointer to inner to simplify parsing inner
values.

There are two cases for redirect action:
- from uplink to VF - TC filter is added on tunnel device
- from VF to uplink - TC filter is added on PR, for this case check if
  redirect device is tunnel device

VXLAN example:
- create tunnel device
ip l add $VXLAN_DEV type vxlan id $VXLAN_VNI dstport $VXLAN_PORT \
dev $PF
- add TC filter (in switchdev mode)
tc filter add dev $VXLAN_DEV protocol ip parent ffff: flower \
enc_dst_ip $VF1_IP enc_key_id $VXLAN_VNI action mirred egress \
redirect dev $VF1_PR

Geneve example:
- create tunnel device
ip l add $GENEVE_DEV type geneve id $GENEVE_VNI dstport $GENEVE_PORT \
remote $GENEVE_IP
- add TC filter (in switchdev mode)
tc filter add dev $GENEVE_DEV protocol ip parent ffff: flower \
enc_key_id $GENEVE_VNI dst_ip $GENEVE1_IP action mirred egress \
redirect dev $VF1_PR

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_switch.h b/drivers/net/ethernet/intel/ice/ice_switch.h
index c4dd2062c469..7d661c9be81b 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.h
+++ b/drivers/net/ethernet/intel/ice/ice_switch.h
@@ -171,6 +171,7 @@ struct ice_adv_rule_flags_info {
 };
 
 struct ice_adv_rule_info {
+	enum ice_sw_tunnel_type tun_type;
 	struct ice_sw_act_ctrl sw_act;
 	u32 priority;
 	u8 rx; /* true means LOOKUP_RX otherwise LOOKUP_TX */