[Intel-wired-lan] [PATCH 6/6] [net-next]net: i40e: Enable cloud filters in i40e via tc/flower classifier

[Jamal Hadi Salim]

On 17-07-31 08:38 PM, Amritha Nambiar wrote:
> This patch enables tc-flower based hardware offloads. tc/flower
> filter provided by the kernel is configured as driver specific
> cloud filter. The patch implements functions and admin queue
> commands needed to support cloud filters in the driver and
> adds cloud filters to configure these tc-flower filters.
> 
> The only action supported is to redirect packets to a traffic class
> on the same device.
> 
> # tc qdisc add dev eth0 ingress
> # ethtool -K eth0 hw-tc-offload on
> 
> # tc filter add dev eth0 protocol ip parent ffff:\
>    prio 1 flower dst_mac 3c:fd:fe:a0:d6:70 skip_sw indev eth0\
>    action mirred ingress redirect dev eth0 tc 0
> 

Out of curiosity - did you need to say "indev eth0" there?
Also: Is it possible to add an skbmark? Example something like
these that directs two flows to the same queue but different
skb marks:

# tc filter add dev eth0 protocol ip parent ffff: \
   prio 2 flower dst_ip 192.168.3.5/32 \
   ip_proto udp dst_port 2a skip_sw \
   action skbedit mark 11 \
   action mirred ingress redirect dev eth0 tcqueue 1

# tc filter add dev eth0 protocol ip parent ffff: \
     prio 1 flower dst_mac 3c:fd:fe:a0:d6:70 skip_sw \
     action skbedit mark 12 \
     action mirred ingress redirect dev eth0 tcqueue 1

cheers,
jamal