Re: [PATCH bpf-next v3 0/4] xdp: recycle Page Pool backed skbs built from XDP frames

[Alexander Lobakin <aleksander.lobakin@xxxxxxxxx>]

From: Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>
Date: Tue, 14 Mar 2023 16:54:25 -0700

> On Tue, Mar 14, 2023 at 11:52 AM Alexei Starovoitov
> <alexei.starovoitov@xxxxxxxxx> wrote:

[...]

> test_xdp_do_redirect:PASS:prog_run 0 nsec
> test_xdp_do_redirect:PASS:pkt_count_xdp 0 nsec
> test_xdp_do_redirect:PASS:pkt_count_zero 0 nsec
> test_xdp_do_redirect:FAIL:pkt_count_tc unexpected pkt_count_tc: actual
> 220 != expected 9998
> test_max_pkt_size:PASS:prog_run_max_size 0 nsec
> test_max_pkt_size:PASS:prog_run_too_big 0 nsec
> close_netns:PASS:setns 0 nsec
> #289 xdp_do_redirect:FAIL
> Summary: 270/1674 PASSED, 30 SKIPPED, 1 FAILED
> 
> Alex,
> could you please take a look at why it's happening?
> 
> I suspect it's an endianness issue in:
>         if (*metadata != 0x42)
>                 return XDP_ABORTED;
> but your patch didn't change that,
> so I'm not sure why it worked before.

Sure, lemme fix it real quick.

Thanks,
Olek