On Sat, 29 Dec 2018 13:52:23 +0100, Bartek Kois wrote:
> Hi,
> I`ve got problem while queuing with HFSC vlan tagged packets after
> migrating my tc scripts from Debian 8.2 (3.16.0-4-amd64) to Debian 9.5
> (4.9.0-6-amd64). tc filters added to eth1 do not classify correctly src
> and dst ip addresses anymore if they are encapsulated with vlan tag
> which wasn`t a problem previously. It works fine if I run them without
> vlan tagging oraz if the root device is a vlan (eg. tc filter add dev
> eth1.20). Could you please help me find out what has changed in kernel
> between those two versions and what is walkaround for that problem?
Could this be related to your device driver not stripping VLAN tags by
default any more? Just a short in the dark.. Try:
$ ethtool -k lo | grep vlan
on working vs broken setup. What is your HW/device driver?
> Example of my classification filters:
>
> tc filter add dev eth1 parent 1:0 prio 4 protocol ip u32
> tc filter add dev eth1 parent 1:0 prio 4 handle ${NETWORK_GROUP_HEX}:
> protocol ip u32 divisor 256
> tc filter add dev eth1 protocol ip parent 1:0 prio 4 u32 ht 800:: match
> ip dst ${NETWORK_ADDRESS}/24 hashkey mask 0x000000ff at 16 link
> ${NETWORK_GROUP_HEX}:
> tc filter add dev eth1 parent 1:0 protocol ip prio 4 u32 ht
> ${NETWORK_GROUP_HEX}:0x${ADDR_Q4_HEX} match ip dst $ADDR classid
> 1:${MARK_NORMAL}
>
>
> Best regards
> Bartek Kois
