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Message-ID: <901e1a7a-bb86-8d62-4bd7-512a1257d3b0@linux.dev>
Date:   Mon, 23 Jan 2023 10:53:06 -0800
From:   Martin KaFai Lau <martin.lau@...ux.dev>
To:     Stanislav Fomichev <sdf@...gle.com>
Cc:     ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        song@...nel.org, yhs@...com, john.fastabend@...il.com,
        kpsingh@...nel.org, haoluo@...gle.com, jolsa@...nel.org,
        David Ahern <dsahern@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Willem de Bruijn <willemb@...gle.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Anatoly Burakov <anatoly.burakov@...el.com>,
        Alexander Lobakin <alexandr.lobakin@...el.com>,
        Magnus Karlsson <magnus.karlsson@...il.com>,
        Maryam Tahhan <mtahhan@...hat.com>, xdp-hints@...-project.net,
        netdev@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH bpf-next v8 00/17] xdp: hints via kfuncs

On 1/19/23 2:15 PM, Stanislav Fomichev wrote:
> Please see the first patch in the series for the overall
> design and use-cases.
> 
> See the following email from Toke for the per-packet metadata overhead:
> https://lore.kernel.org/bpf/20221206024554.3826186-1-sdf@google.com/T/#m49d48ea08d525ec88360c7d14c4d34fb0e45e798
> 
> Recent changes:
> - Keep new functions in en/xdp.c, do 'extern mlx5_xdp_metadata_ops' (Tariq)
> 
> - Remove mxbuf pointer and use xsk_buff_to_mxbuf (Tariq)
> 
> - Clarify xdp_buff vs 'XDP frame' (Jesper)
> 
> - Explicitly mention that AF_XDP RX descriptor lacks metadata size (Jesper)
> 
> - Drop libbpf_flags/xdp_flags from selftests and use ifindex instead
>    of ifname (due to recent xsk.h refactoring)

Applied with the minor changes in the selftests discussed in patch 11 and 17. 
Thanks!

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