Re: AF_XDP socket TX path interact with TC?

[Toke Høiland-Jørgensen <toke@xxxxxxxxxx>]

Jun Hu <hujun.work@xxxxxxxxx> writes:

> Hi,
> I want to put a timestamp in the egress packets, and I want to use
> AF_XDP socket for both sending and receiving packets; since a XDP
> kernel program only work in ingress direction, I wonder if I could use
> a tc kernel program to change a packet sent out via an AF_XDP socket?
> I searched around, but couldn't find any direct answer...

Nope, AF_XDP bypasses the stack completely, so TC won't see the packet
on egress...

-Toke