netdev - RE: [PATCH v19 bpf-next 20/23] net: xdp: introduce bpf_xdp

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Date:   Mon, 06 Dec 2021 10:34:54 -0800
From:   John Fastabend <john.fastabend@...il.com>
To:     Lorenzo Bianconi <lorenzo@...nel.org>, bpf@...r.kernel.org,
        netdev@...r.kernel.org
Cc:     lorenzo.bianconi@...hat.com, davem@...emloft.net, kuba@...nel.org,
        ast@...nel.org, daniel@...earbox.net, shayagr@...zon.com,
        john.fastabend@...il.com, dsahern@...nel.org, brouer@...hat.com,
        echaudro@...hat.com, jasowang@...hat.com,
        alexander.duyck@...il.com, saeed@...nel.org,
        maciej.fijalkowski@...el.com, magnus.karlsson@...el.com,
        tirthendu.sarkar@...el.com, toke@...hat.com
Subject: RE: [PATCH v19 bpf-next 20/23] net: xdp: introduce bpf_xdp_pointer
 utility routine

Lorenzo Bianconi wrote:
> Similar to skb_header_pointer, introduce bpf_xdp_pointer utility routine
> to return a pointer to a given position in the xdp_buff if the requested
> area (offset + len) is contained in a contiguous memory area otherwise it
> will be copied in a bounce buffer provided by the caller.
> Similar to the tc counterpart, introduce the two following xdp helpers:
> - bpf_xdp_load_bytes
> - bpf_xdp_store_bytes
> 
> Reviewed-by: Eelco Chaudron <echaudro@...hat.com>
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> ---

Nice. Thanks for working on this.

Acked-by: John Fastabend <john.fastabend@...il.com>