netdev - Re: [PATCH bpf-next v5 06/13] xsk: Document tx_metadata

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Date: Sun, 5 Nov 2023 07:45:14 -0500
From: Simon Horman <horms@...nel.org>
To: Stanislav Fomichev <sdf@...gle.com>
Cc: bpf@...r.kernel.org, ast@...nel.org, daniel@...earbox.net,
	andrii@...nel.org, martin.lau@...ux.dev, song@...nel.org,
	yhs@...com, john.fastabend@...il.com, kpsingh@...nel.org,
	haoluo@...gle.com, jolsa@...nel.org, kuba@...nel.org,
	toke@...nel.org, willemb@...gle.com, dsahern@...nel.org,
	magnus.karlsson@...el.com, bjorn@...nel.org,
	maciej.fijalkowski@...el.com, hawk@...nel.org,
	yoong.siang.song@...el.com, netdev@...r.kernel.org,
	xdp-hints@...-project.net
Subject: Re: [PATCH bpf-next v5 06/13] xsk: Document tx_metadata_len layout

On Thu, Nov 02, 2023 at 03:58:30PM -0700, Stanislav Fomichev wrote:
> - how to use
> - how to query features
> - pointers to the examples
> 
> Signed-off-by: Stanislav Fomichev <sdf@...gle.com>

...

> diff --git a/Documentation/networking/xsk-tx-metadata.rst b/Documentation/networking/xsk-tx-metadata.rst
> new file mode 100644
> index 000000000000..4f376560b23f
> --- /dev/null
> +++ b/Documentation/networking/xsk-tx-metadata.rst
> @@ -0,0 +1,70 @@

Hi Stan,

a minor nit from my side: an SPDX licence identifier tag should probably go
here.

> +==================
> +AF_XDP TX Metadata
> +==================
> +
> +This document describes how to enable offloads when transmitting packets
> +via :doc:`af_xdp`. Refer to :doc:`xdp-rx-metadata` on how to access similar
> +metadata on the receive side.

...