• Patrick McHardy's avatar
    net: vlan: add 802.1ad support · 8ad227ff
    Patrick McHardy authored
    
    
    Add support for 802.1ad VLAN devices. This mainly consists of checking for
    ETH_P_8021AD in addition to ETH_P_8021Q in a couple of places and check
    offloading capabilities based on the used protocol.
    
    Configuration is done using "ip link":
    
    # ip link add link eth0 eth0.1000 \
    	type vlan proto 802.1ad id 1000
    # ip link add link eth0.1000 eth0.1000.1000 \
    	type vlan proto 802.1q id 1000
    
    52:54:00:12:34:56 > 92:b1:54:28:e4:8c, ethertype 802.1Q (0x8100), length 106: vlan 1000, p 0, ethertype 802.1Q, vlan 1000, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
        20.1.0.2 > 20.1.0.1: ICMP echo request, id 3003, seq 8, length 64
    92:b1:54:28:e4:8c > 52:54:00:12:34:56, ethertype 802.1Q-QinQ (0x88a8), length 106: vlan 1000, p 0, ethertype 802.1Q, vlan 1000, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 47944, offset 0, flags [none], proto ICMP (1), length 84)
        20.1.0.1 > 20.1.0.2: ICMP echo reply, id 3003, seq 8, length 64
    Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    8ad227ff
netdev_features.h 6.34 KB