netdev - Re: [PATCH net-2.6.25 4/7][ATM]: [br2864] routed support

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Date:	Mon, 31 Dec 2007 09:09:58 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	chas williams - CONTRACTOR <chas@....nrl.navy.mil>
Cc:	netdev@...r.kernel.org, davem@...emloft.net
Subject: Re: [PATCH net-2.6.25 4/7][ATM]: [br2864] routed support

> +#define BR2684_ETHERTYPE_LEN	2
> +#define BR2684_PAD_LEN		2
> +
> +#define LLC		0xaa, 0xaa, 0x03
> +#define SNAP_BRIDGED	0x00, 0x80, 0xc2
> +#define SNAP_ROUTED	0x00, 0x00, 0x00
> +#define PID_ETHERNET	0x00, 0x07
> +#define ETHERTYPE_IPV4	0x08, 0x00
> +#define ETHERTYPE_IPV6	0x86, 0xdd
> +#define PAD_BRIDGED	0x00, 0x00
> +
> +static unsigned char ethertype_ipv4[] =
> +	{ ETHERTYPE_IPV4 };
> +static unsigned char ethertype_ipv6[] =
> +	{ ETHERTYPE_IPV6 };
>  static unsigned char llc_oui_pid_pad[] =
> -    { 0xAA, 0xAA, 0x03, 0x00, 0x80, 0xC2, 0x00, 0x07, 0x00, 0x00 };
> -#define PADLEN	(2)
> +	{ LLC, SNAP_BRIDGED, PID_ETHERNET, PAD_BRIDGED };
> +static unsigned char llc_oui_ipv4[] =
> +	{ LLC, SNAP_ROUTED, ETHERTYPE_IPV4 };
> +static unsigned char llc_oui_ipv6[] =
> +	{ LLC, SNAP_ROUTED, ETHERTYPE_IPV6 };

I think this should be in a global header.  And IIRC we already have
at least some of these somewhere as part of the general llc support.

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