netdev - Re: [PATCH] infiniband: use %p6 for printing message ids

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Date:	Tue, 28 Oct 2008 16:22:08 -0700
From:	Joe Perches <joe@...ches.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Harvey Harrison <harvey.harrison@...il.com>,
	David Miller <davem@...emloft.net>,
	linux-netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] infiniband: use %p6 for printing message ids

On Tue, 2008-10-28 at 16:07 -0700, Roland Dreier wrote:
> > I'm not sure any of these should be converted like this.
>  > Infiniband gids are not IPv6 addresses.
> 
> Actually, they are.  The IB specification section 4.1 says:
> 
>  "A GID is a valid 128-bit IPv6 address (per RFC 2373) with additional
>   properties / restrictions defined...."
> 
> and it makes sense to format an IB GID as an IPv6 address for display
> (that's what the IB spec does; eg it mentions the "Multicast GID
> FF02:0:0:0:0:0:0:1").

Perhaps the union in ib_verbs

union ib_gid {
	u8	raw[16];
	struct {
		__be64	subnet_prefix;
		__be64	interface_id;
	} global;
};

could/should include a struct in6_addr?


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