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From: Stanislav Fomichev <sdf@google.com>
To: David Vernet <void@manifault.com>
Cc: bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
	andrii@kernel.org, martin.lau@linux.dev, song@kernel.org,
	yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org,
	haoluo@google.com, jolsa@kernel.org,
	David Ahern <dsahern@gmail.com>, Jakub Kicinski <kuba@kernel.org>,
	Willem de Bruijn <willemb@google.com>,
	Jesper Dangaard Brouer <brouer@redhat.com>,
	Anatoly Burakov <anatoly.burakov@intel.com>,
	Alexander Lobakin <alexandr.lobakin@intel.com>,
	Magnus Karlsson <magnus.karlsson@gmail.com>,
	Maryam Tahhan <mtahhan@redhat.com>,
	xdp-hints@xdp-project.net, netdev@vger.kernel.org
Subject: Re: [PATCH bpf-next v5 07/17] bpf: XDP metadata RX kfuncs
Date: Tue, 3 Jan 2023 14:23:59 -0800	[thread overview]
Message-ID: <CAKH8qBseZ_ceu1A4Cyt_NND9ZcFRapu-74CugPYBfooppXF3xA@mail.gmail.com> (raw)
In-Reply-To: <Y6tWrtltKfAlo0rT@maniforge.lan>

On Tue, Dec 27, 2022 at 12:33 PM David Vernet <void@manifault.com> wrote:
>
> On Tue, Dec 20, 2022 at 02:20:33PM -0800, Stanislav Fomichev wrote:
>
> Hey Stanislav,
>
> [...]
>
> > diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> > index aad12a179e54..b41d18490595 100644
> > --- a/include/linux/netdevice.h
> > +++ b/include/linux/netdevice.h
> > @@ -74,6 +74,7 @@ struct udp_tunnel_nic_info;
> >  struct udp_tunnel_nic;
> >  struct bpf_prog;
> >  struct xdp_buff;
> > +struct xdp_md;
> >
> >  void synchronize_net(void);
> >  void netdev_set_default_ethtool_ops(struct net_device *dev,
> > @@ -1618,6 +1619,11 @@ struct net_device_ops {
> >                                                 bool cycles);
> >  };
> >
> > +struct xdp_metadata_ops {
> > +     int     (*xmo_rx_timestamp)(const struct xdp_md *ctx, u64 *timestamp);
> > +     int     (*xmo_rx_hash)(const struct xdp_md *ctx, u32 *hash);
> > +};
> > +
> >  /**
> >   * enum netdev_priv_flags - &struct net_device priv_flags
> >   *
> > @@ -2050,6 +2056,7 @@ struct net_device {
> >       unsigned int            flags;
> >       unsigned long long      priv_flags;
> >       const struct net_device_ops *netdev_ops;
> > +     const struct xdp_metadata_ops *xdp_metadata_ops;
>
> You need to document this field above the struct, or the docs build will
> complain:
>
>   SPHINX  htmldocs -->
>   <redacted>
>   make[2]: Nothing to be done for 'html'.
>   Using sphinx_rtd_theme theme
>   source directory: networking
>   ./include/linux/netdevice.h:2371: warning: Function parameter or
>   member 'xdp_metadata_ops' not described in 'net_device'
>
> >       int                     ifindex;
> >       unsigned short          gflags;
> >       unsigned short          hard_header_len;

Thanks, I will try to actually build the doc. Last time I tried it
took too long and I gave up :-)

> Thanks,
> David

  reply	other threads:[~2023-01-03 22:27 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-20 22:20 [PATCH bpf-next v5 00/17] xdp: hints via kfuncs Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 01/17] bpf: Document XDP RX metadata Stanislav Fomichev
2022-12-28 17:25   ` David Vernet
2023-01-03 22:23     ` Stanislav Fomichev
2023-01-04 16:02       ` David Vernet
2022-12-20 22:20 ` [PATCH bpf-next v5 02/17] bpf: Rename bpf_{prog,map}_is_dev_bound to is_offloaded Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 03/17] bpf: Move offload initialization into late_initcall Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 04/17] bpf: Reshuffle some parts of bpf/offload.c Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 05/17] bpf: Introduce device-bound XDP programs Stanislav Fomichev
2022-12-23  0:19   ` Martin KaFai Lau
2022-12-23  4:06     ` Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 06/17] selftests/bpf: Update expected test_offload.py messages Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 07/17] bpf: XDP metadata RX kfuncs Stanislav Fomichev
2022-12-21  5:43   ` kernel test robot
2022-12-21 17:49     ` Stanislav Fomichev
2022-12-23  0:31   ` Martin KaFai Lau
2022-12-23  4:06     ` Stanislav Fomichev
2022-12-27 20:33   ` David Vernet
2023-01-03 22:23     ` Stanislav Fomichev [this message]
2023-01-03 22:35       ` David Vernet
2022-12-20 22:20 ` [PATCH bpf-next v5 08/17] bpf: Support consuming XDP HW metadata from fext programs Stanislav Fomichev
2022-12-23  0:37   ` Martin KaFai Lau
2022-12-23  4:06     ` Stanislav Fomichev
2023-01-04  1:51       ` Martin KaFai Lau
2023-01-04  3:59         ` Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 09/17] veth: Introduce veth_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 10/17] veth: Support RX XDP metadata Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 11/17] selftests/bpf: Verify xdp_metadata xdp->af_xdp path Stanislav Fomichev
2022-12-23  0:40   ` Martin KaFai Lau
2022-12-23  4:06     ` Stanislav Fomichev
2023-01-04  2:05       ` Martin KaFai Lau
2022-12-20 22:20 ` [PATCH bpf-next v5 12/17] net/mlx4_en: Introduce wrapper for xdp_buff Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 13/17] net/mlx4_en: Support RX XDP metadata Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 14/17] xsk: Add cb area to struct xdp_buff_xsk Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 15/17] net/mlx5e: Introduce wrapper for xdp_buff Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 16/17] net/mlx5e: Support RX XDP metadata Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 17/17] selftests/bpf: Simple program to dump XDP RX metadata Stanislav Fomichev
2022-12-23  0:53   ` Martin KaFai Lau
2022-12-23  4:07     ` Stanislav Fomichev

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