RE: [EXT] Re: [RESEND PATCH v4 net 1/1] net: fec: correct the counting of XDP sent frames

[Shenwei Wang]

> -----Original Message-----
> From: Jakub Kicinski <kuba@xxxxxxxxxx>
> Sent: Monday, May 8, 2023 8:46 PM
> To: Shenwei Wang <shenwei.wang@xxxxxxx>
> Cc: Wei Fang <wei.fang@xxxxxxx>; David S. Miller <davem@xxxxxxxxxxxxx>;
> Eric Dumazet <edumazet@xxxxxxxxxx>; Paolo Abeni <pabeni@xxxxxxxxxx>;
> Clark Wang <xiaoning.wang@xxxxxxx>; dl-linux-imx <linux-imx@xxxxxxx>;
> Alexei Starovoitov <ast@xxxxxxxxxx>; Daniel Borkmann <daniel@xxxxxxxxxxxxx>;
> Jesper Dangaard Brouer <hawk@xxxxxxxxxx>; John Fastabend
> <john.fastabend@xxxxxxxxx>; Alexander Lobakin
> <alexandr.lobakin@xxxxxxxxx>; netdev@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; imx@xxxxxxxxxxxxxxx; Gagandeep Singh
> <G.Singh@xxxxxxx>
> Subject: [EXT] Re: [RESEND PATCH v4 net 1/1] net: fec: correct the counting of
> XDP sent frames
>
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> On Mon,  8 May 2023 09:38:31 -0500 Shenwei Wang wrote:
> > In the current xdp_xmit implementation, if any single frame fails to
> > transmit due to insufficient buffer descriptors, the function
> > nevertheless reports success in sending all frames. This results in
> > erroneously indicating that frames were transmitted when in fact they were
> dropped.
> >
> > This patch fixes the issue by ensureing the return value properly
> > indicates the actual number of frames successfully transmitted, rather
> > than potentially reporting success for all frames when some could not transmit.
> >
> > Fixes: 6d6b39f180b8 ("net: fec: add initial XDP support")
> > Signed-off-by: Gagandeep Singh <g.singh@xxxxxxx>
> > Signed-off-by: Shenwei Wang <shenwei.wang@xxxxxxx>
>
> Unfortunately the previous version was silently applied, it seems:
>
> https://git.kernel/
> .org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Fnetdev%2Fnet.git%2Fcommit
> %2F%3Fid%3D26312c685ae0bca61e06ac75ee158b1e69546415&data=05%7C01
> %7Cshenwei.wang%40nxp.com%7C50d9af4da79646cf2d2b08db502f2b7d%7C6
> 86ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C638191935747226987%7C
> Unknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6I
> k1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=O2uy5iy4QJa9v8TN9t
> qM7jqIgVhBY7pMxl4K58abj9s%3D&reserved=0
>
> Could you send an incremental fix, on top of that patch?

Certainly, I will.

Thanks,
Shenwei

> --
> pw-bot: cr