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Message-ID: <659c1e5543102_32ba6829429@willemb.c.googlers.com.notmuch>
Date: Mon, 08 Jan 2024 11:09:57 -0500
From: Willem de Bruijn <willemdebruijn.kernel@...il.com>
To: Alexander Lobakin <aleksander.lobakin@...el.com>,
Willem de Bruijn <willemdebruijn.kernel@...il.com>
Cc: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
Michal Kubiak <michal.kubiak@...el.com>,
Larysa Zaremba <larysa.zaremba@...el.com>,
Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
intel-wired-lan@...ts.osuosl.org,
netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC net-next 00/34] Christmas 3-serie XDP for idpf
(+generic stuff)
Alexander Lobakin wrote:
> From: Willem De Bruijn <willemdebruijn.kernel@...il.com>
> Date: Tue, 26 Dec 2023 15:23:41 -0500
>
> > Alexander Lobakin wrote:
> >> I was highly asked to send this WIP before the holidays to trigger
> >> some discussions at least for the generic parts.
> >>
> >> This all depends on libie[0] and WB-on-ITR fix[1]. The RFC does not
> >> guarantee to work perfectly, but at least regular XDP seems to work
> >> for me...
> >>
> >> In fact, here are 3 separate series:
> >> * 01-08: convert idpf to libie and make it more sane;
> >> * 09-25: add XDP to idpf;
> >> * 26-34: add XSk to idpf.
> >>
> >> Most people may want to be interested only in the following generic
> >> changes:
> >> * 11: allow attaching already registered memory models to XDP RxQ info;
> >> * 12-13: generic helpers for adding a frag to &xdp_buff and converting
> >> it to an skb;
> >> * 14: get rid of xdp_frame::mem.id, allow mixing pages from different
> >> page_pools within one &xdp_buff/&xdp_frame;
> >> * 15: some Page Pool helper;
> >> * 18: it's for libie, but I wanted to talk about XDP_TX bulking;
> >> * 26: same as 13, but for converting XSK &xdp_buff to skb.
> >>
> >> The rest is up to you, driver-specific stuff is pretty boring sometimes.
> >>
> >> I'll be polishing and finishing this all starting January 3rd and then
> >> preparing and sending sane series, some early feedback never hurts tho.
> >>
> >> Merry Yule!
> >>
> >> [0] https://lore.kernel.org/netdev/20231213112835.2262651-1-aleksander.lobakin@intel.com
> >> [1] https://lore.kernel.org/netdev/20231215193721.425087-1-michal.kubiak@intel.com
> >
> > This is great. Thanks for sharing the entire series.
> >
> > Which SHA1 should we apply this to? I'm having a hard time applying
> > cleanly.
> >
> > The libie v7 series applied cleanly on bc044ae9d64b. Which I chose
> > only based on the follow-on page pool patch.
> >
> > But that base commit causes too many conflicts when applying this.
> > Patch 6 had a trivial one in idpf_rx_singleq_clean (`skb = rx_q->skb`).
> > But patch 14 has so many conflicts in page_pool.c, that I'm clearly
> > on the wrong track trying to fix up manually.
>
> net-next was updated while I was preparing the series. I also did a
> couple changes in the basic libie code, but a new rev wasn't sent.
> Please just use my open GH[0].
>
> [0] https://github.com/alobakin/linux/tree/idpf-libie
Even better, thanks. I'll use that to run my basic XSK tests.
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