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From: Stephan Gatzka <stephan.gatzka@gmail.com>
To: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>,
	netdev <netdev@vger.kernel.org>,
	linux1394-devel@lists.sourceforge.net,
	David Miller <davem@davemloft.net>
Subject: Re: [RFC:] struct net_device_ops: Add function pointer to fill device specific ndisc information
Date: Mon, 21 Jan 2013 20:25:31 +0100	[thread overview]
Message-ID: <50FD962B.8020500@gmail.com> (raw)
In-Reply-To: <20130121083957.6e2c5a68@stein>


> Two net_device instances on one 1394 card would be awkward:  They would
> have to share one instance of isochronous reception context (for reception
> of asynchronous 1394 streams; those are used for broadcasts and
> multicasts).  Such a sharing is surely possible, but if double net_device
> instantiation can be avoided, then avoid it.
>
> Not to mention the user interface problem of having two netifs, one which
> only supports IPv4 and another one which only supports IPv6.  So far I
> never had IPv6 configured into a Linux kernel, but I suppose that folks
> are used to be able to use eth0 etc. for both protocols.

Full ack. And that's the reason why I feel very uncomfortable with a 
Yoshifujis hardware address extensions by fifo_addr, spd, and max_rec.

This seems possible with a single netdevice for IPv4/6 only if we 
_always_ use the same fifo address for both IPv4 and IPv6. Do we all 
agree on that?

Stephan

  parent reply	other threads:[~2013-01-21 19:25 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-20 17:52 [RFC:] struct net_device_ops: Add function pointer to fill device specific ndisc information Stephan Gatzka
2013-01-20 18:47 ` YOSHIFUJI Hideaki
2013-01-20 21:23   ` Stephan Gatzka
2013-01-21  2:29     ` YOSHIFUJI Hideaki
2013-01-21  6:25       ` Stephan Gatzka
2013-01-21  7:39         ` Stefan Richter
2013-01-21 11:50           ` YOSHIFUJI Hideaki
2013-01-21 19:25           ` Stephan Gatzka [this message]
2013-01-21 19:57             ` YOSHIFUJI Hideaki
2013-01-21 21:16               ` Stephan Gatzka
2013-01-27 14:43                 ` Stefan Richter
2013-01-27 17:21                   ` Stephan Gatzka
2013-01-27 18:20                     ` Stephan Gatzka
2013-01-27 18:25                       ` YOSHIFUJI Hideaki
2013-01-27 19:28                     ` YOSHIFUJI Hideaki
2013-01-27 23:26                       ` Stefan Richter
2013-01-21 11:50         ` YOSHIFUJI Hideaki
2013-01-21  8:09     ` Stefan Richter
2013-01-21 12:04       ` YOSHIFUJI Hideaki
2013-01-21 13:15         ` Stefan Richter
2013-01-21  6:37   ` Stephan Gatzka
2013-01-21 12:16     ` YOSHIFUJI Hideaki
2013-01-20 21:22 ` Waskiewicz Jr, Peter P
2013-01-21  6:17   ` Stephan Gatzka
2013-01-21  8:28     ` Stefan Richter
2013-01-21 12:32       ` YOSHIFUJI Hideaki
2013-01-21 14:15         ` YOSHIFUJI Hideaki

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