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Date:	Mon, 19 Jan 2015 08:59:38 +0000
From:	Thomas Graf <tgraf@...g.ch>
To:	Tom Herbert <therbert@...gle.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 2/2] vxlan: Eliminate dependency on UDP socket
 in transmit path

On 01/17/15 at 10:18am, Tom Herbert wrote:
> diff --git a/include/net/vxlan.h b/include/net/vxlan.h
> index 7be8c34..2927d62 100644
> --- a/include/net/vxlan.h
> +++ b/include/net/vxlan.h
> @@ -129,8 +129,12 @@ struct vxlan_sock {
>  #define VXLAN_F_REMCSUM_RX		0x400
>  #define VXLAN_F_GBP			0x800
>  
> -/* These flags must match in order for a socket to be shareable */
> -#define VXLAN_F_UNSHAREABLE		VXLAN_F_GBP
> +/* Flags that are used in the receive patch. These flags must match in
                                          ^^^^^



> + * order for a socket to be shareable
> + */
> +#define VXLAN_F_RCV_FLAGS		(VXLAN_F_GBP |			\
> +					 VXLAN_F_UDP_ZERO_CSUM6_RX |	\
> +					 VXLAN_F_REMCSUM_RX)

I'm fine with this. It is slightly odd that we will be transmitting
RCO and other extensions on UDP ports which cannot accept the same
frames. I assume you have specific use cases for this scenario.
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