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

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Date: Thu, 19 Oct 2023 10:05:24 +0200
From: Larysa Zaremba <larysa.zaremba@...el.com>
To: Jakub Kicinski <kuba@...nel.org>
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 Wed, Oct 18, 2023 at 04:59:31PM -0700, Jakub Kicinski wrote:
> 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

Thanks! Will do this.