netdev - RE: [PATCH bpf-next V2 0/5] XDP-hints: XDP kfunc metadata for driver igc

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Date:   Tue, 18 Apr 2023 14:53:40 +0000
From:   "Song, Yoong Siang" <yoong.siang.song@...el.com>
To:     "Brouer, Jesper" <brouer@...hat.com>,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Toke Høiland-Jørgensen <toke@...hat.com>
CC:     "Brouer, Jesper" <brouer@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "martin.lau@...nel.org" <martin.lau@...nel.org>,
        "ast@...nel.org" <ast@...nel.org>,
        "daniel@...earbox.net" <daniel@...earbox.net>,
        "Lobakin, Aleksander" <aleksander.lobakin@...el.com>,
        "Zaremba, Larysa" <larysa.zaremba@...el.com>,
        "xdp-hints@...-project.net" <xdp-hints@...-project.net>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "john.fastabend@...il.com" <john.fastabend@...il.com>,
        "hawk@...nel.org" <hawk@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>
Subject: RE: [PATCH bpf-next V2 0/5] XDP-hints: XDP kfunc metadata for driver
 igc

On Tuesday, April 18, 2023 9:31 PM, Jesper Dangaard Brouer <brouer@...hat.com> wrote:
>Implement both RX hash and RX timestamp XDP hints kfunc metadata for driver
>igc.
>
>First patch fix RX hashing for igc in general.
>
>Last patch change test program xdp_hw_metadata to track more timestamps,
>which helps us correlate the hardware RX timestamp with something.
>
>---
>To maintainers: I'm uncertain which git tree this should be sent against. This is
>primary NIC driver code (net-next), but it's BPF/XDP related (bpf-next) via
>xdp_metadata_ops.
>
>Jesper Dangaard Brouer (5):
>      igc: enable and fix RX hash usage by netstack
>      igc: add igc_xdp_buff wrapper for xdp_buff in driver
>      igc: add XDP hints kfuncs for RX hash
>      igc: add XDP hints kfuncs for RX timestamp
>      selftests/bpf: xdp_hw_metadata track more timestamps
>
>
> drivers/net/ethernet/intel/igc/igc.h          |  35 ++++++
> drivers/net/ethernet/intel/igc/igc_main.c     | 116 ++++++++++++++++--
> .../selftests/bpf/progs/xdp_hw_metadata.c     |   4 +-
> tools/testing/selftests/bpf/xdp_hw_metadata.c |  47 ++++++-
> tools/testing/selftests/bpf/xdp_metadata.h    |   1 +
> 5 files changed, 186 insertions(+), 17 deletions(-)
>
>--

This patchset lgtm.
Thanks for the changes.

Thanks & Regards
Siang