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From: Marcel Holtmann <holtmann@linux.intel.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Matthew Wilcox <matthew@wil.cx>, Greg KH <greg@kroah.com>,
	bgmerrell@novell.com, hirofuchi@users.sourceforge.net,
	linux-kernel@vger.kernel.org, usbip-devel@lists.sourceforge.net
Subject: Re: USBIP protocol
Date: Sat, 30 Aug 2008 00:31:43 +0200	[thread overview]
Message-ID: <1220049103.7145.23.camel@californication> (raw)
In-Reply-To: <87ej47q5k8.fsf@basil.nowhere.org>

Hi Matthew,

> > I'm in the middle of implementing a userspace client for usbip and I
> > strongly feel that the protocol needs to be changed before it is merged.
> >
> >  - I'm unconvinced that TCP is the correct protocol to be running this over.
> >    I understand the reluctance to use UDP, but the protocol is fundamentally
> >    packet-based.  If TCP is used, the delimitation of packets within the
> >    stream needs to be much more robust. 
> 
> If you want reliable transport with record boundaries an alternative
> would be also SCTP. Main drawback is that firewalls often don't support it
> though (but presumably that wouldn't be a big issue for this)

I would also have proposed SCTP. The telco carries seems be very happy
with it.

Regards

Marcel



  reply	other threads:[~2008-08-29 20:31 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-29 14:02 USBIP protocol Matthew Wilcox
2008-08-29 14:06 ` Andi Kleen
2008-08-29 22:31   ` Marcel Holtmann [this message]
2008-08-29 20:46     ` Matthew Wilcox
2008-08-29 20:51       ` Willy Tarreau
2008-08-29 14:30 ` Greg KH
2008-08-29 14:43   ` Matthew Wilcox
2008-08-29 14:54     ` Greg KH
2008-08-29 15:36       ` Matthew Wilcox
2008-08-29 15:53         ` Dave Higton
2008-09-03  4:25       ` Matthew Wilcox
2008-09-03 15:40         ` Alan Stern
2008-09-03 19:10           ` Matthew Wilcox
2008-09-03 20:15             ` Alan Stern
2008-09-04 21:48               ` Matthew Wilcox
2008-09-04 22:15                 ` Greg KH
2008-09-05  3:26                 ` Pete Zaitcev
2008-09-05 11:37                 ` Tilman Schmidt
2008-09-05 15:05                 ` Alan Stern
2008-09-09  0:53                   ` Matthew Wilcox
2008-09-09  7:12                     ` Steve Calfee
2008-09-09  7:33                       ` Greg KH
2008-09-09  8:04                         ` Greg KH
2008-09-09 15:21                     ` Alan Stern
2008-09-03 15:57         ` Greg KH
2008-09-03 19:43           ` Matthew Wilcox
2008-09-04  2:41             ` Greg KH

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