netdev - Re: [PATCH v10 08/12] bpf: add XDP_TX xdp

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Message-ID: <20160719215310.GF64618@ast-mbp.thefacebook.com>
Date:	Tue, 19 Jul 2016 14:53:12 -0700
From:	Alexei Starovoitov <alexei.starovoitov@...il.com>
To:	Brenden Blanco <bblanco@...mgrid.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Saeed Mahameed <saeedm@....mellanox.co.il>,
	Martin KaFai Lau <kafai@...com>,
	Jesper Dangaard Brouer <brouer@...hat.com>,
	Ari Saha <as754m@....com>, Or Gerlitz <gerlitz.or@...il.com>,
	john.fastabend@...il.com, hannes@...essinduktion.org,
	Thomas Graf <tgraf@...g.ch>, Tom Herbert <tom@...bertland.com>,
	Daniel Borkmann <daniel@...earbox.net>,
	Tariq Toukan <ttoukan.linux@...il.com>
Subject: Re: [PATCH v10 08/12] bpf: add XDP_TX xdp_action for direct
 forwarding

On Tue, Jul 19, 2016 at 12:16:53PM -0700, Brenden Blanco wrote:
> XDP enabled drivers must transmit received packets back out on the same
> port they were received on when a program returns this action.
> 
> Signed-off-by: Brenden Blanco <bblanco@...mgrid.com>
> ---
>  include/uapi/linux/bpf.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> index a517865..2b7076f 100644
> --- a/include/uapi/linux/bpf.h
> +++ b/include/uapi/linux/bpf.h
> @@ -449,6 +449,7 @@ enum xdp_action {
>  	XDP_ABORTED = 0,
>  	XDP_DROP,
>  	XDP_PASS,
> +	XDP_TX,

Acked-by: Alexei Starovoitov <ast@...nel.org>