netdev - Re: [PATCH bpf-next v6 08/18] xdp: Add VLAN tag hint

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Date: Wed, 18 Oct 2023 16:59:31 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Larysa Zaremba <larysa.zaremba@...el.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, sdf@...gle.com,
 haoluo@...gle.com, jolsa@...nel.org, David Ahern <dsahern@...il.com>,
 Willem de Bruijn <willemb@...gle.com>, Jesper Dangaard Brouer
 <hawk@...nel.org>, 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, Willem de Bruijn
 <willemdebruijn.kernel@...il.com>, Alexei Starovoitov
 <alexei.starovoitov@...il.com>, Simon Horman <simon.horman@...igine.com>,
 Tariq Toukan <tariqt@...lanox.com>, Saeed Mahameed <saeedm@...lanox.com>,
 Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Subject: Re: [PATCH bpf-next v6 08/18] xdp: Add VLAN tag hint

On Thu, 12 Oct 2023 19:05:14 +0200 Larysa Zaremba wrote:
> diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h
> index 2943a151d4f1..661f603e3e43 100644
> --- a/include/uapi/linux/netdev.h
> +++ b/include/uapi/linux/netdev.h
> @@ -44,13 +44,16 @@ enum netdev_xdp_act {
>   *   timestamp via bpf_xdp_metadata_rx_timestamp().
>   * @NETDEV_XDP_RX_METADATA_HASH: Device is capable of exposing receive packet
>   *   hash via bpf_xdp_metadata_rx_hash().
> + * @NETDEV_XDP_RX_METADATA_VLAN_TAG: Device is capable of exposing stripped
> + *   receive VLAN tag (proto and TCI) via bpf_xdp_metadata_rx_vlan_tag().
>   */
>  enum netdev_xdp_rx_metadata {
>  	NETDEV_XDP_RX_METADATA_TIMESTAMP = 1,
>  	NETDEV_XDP_RX_METADATA_HASH = 2,
> +	NETDEV_XDP_RX_METADATA_VLAN_TAG = 4,
>  
>  	/* private: */
> -	NETDEV_XDP_RX_METADATA_MASK = 3,
> +	NETDEV_XDP_RX_METADATA_MASK = 7,
>  };
>  
>  enum {

Top of this file says:

/* Do not edit directly, auto-generated from: */
/*	Documentation/netlink/specs/netdev.yaml */
/* YNL-GEN uapi header */

Please add your new value in Documentation/netlink/specs/netdev.yaml
and then run ./tools/net/ynl/ynl-regen.sh