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From: Matthew Wilcox <matthew@wil.cx>
To: Stefan Richter <stefanr@s5r6.in-berlin.de>,
	Pekka J Enberg <penberg@cs.helsinki.fi>,
	Alan Stern <stern@rowland.harvard.edu>,
	linux-kernel@vger.kernel.org, dsd@gentoo.org,
	linux-usb@vger.kernel.org, vegardno@ifi.uio.no,
	James.Bottomley@HansenPartnership.com,
	linux-scsi@vger.kernel.org, Greg KH <greg@kroah.com>
Subject: Re: [RFC/PATCH] usb-storage: wait for device scanning before mounting root
Date: Thu, 19 Jun 2008 14:49:55 -0600	[thread overview]
Message-ID: <20080619204954.GQ4392@parisc-linux.org> (raw)
In-Reply-To: <20080619195240.GX19934@one-eyed-alien.net>

On Thu, Jun 19, 2008 at 12:52:40PM -0700, Matthew Dharm wrote:
> First, there are usb-storage devices which are USB<->SCSI bridges and
> therefore support multiple target devices.

This is true.

> Second, you would still need multiple hosts when you have more than 15
> target USB devices, anyway.

This isn't true.  Look at topologies like fibre channel which can have
thousands of targets on a single host.

I would suggest that you want one 'channel' per usb endpoint.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."

  reply	other threads:[~2008-06-19 20:50 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-24 20:21 [RFC/PATCH] usb-storage: wait for device scanning before mounting root Pekka J Enberg
2008-04-24 21:08 ` Alan Stern
2008-04-24 21:25   ` Pekka J Enberg
2008-04-24 22:56     ` Greg KH
2008-04-24 23:30       ` Matthew Dharm
2008-04-25  6:30         ` Pekka J Enberg
2008-04-25  7:04           ` Matthew Dharm
2008-04-25  8:19             ` Pekka J Enberg
2008-04-25 15:35               ` Matthew Dharm
2008-04-25 16:05               ` Greg KH
2008-04-25  6:09       ` Pekka J Enberg
2008-04-25  7:53     ` Stefan Richter
2008-04-25  8:15       ` Pekka J Enberg
2008-04-25  9:11         ` Matthew Wilcox
2008-06-19 18:23           ` Matthew Wilcox
2008-06-19 18:39             ` Stefan Richter
2008-06-19 18:43               ` Stefan Richter
2008-06-19 18:54               ` Matthew Wilcox
2008-06-19 19:52                 ` Matthew Dharm
2008-06-19 20:49                   ` Matthew Wilcox [this message]
2008-06-19 21:19                     ` Stefan Richter
2008-06-19 19:54                 ` Stefan Richter
2008-06-19 20:22                   ` Matthew Wilcox
2008-06-19 20:34                     ` Stefan Richter
2008-06-19 21:39             ` Alan Stern
2008-06-19 23:13               ` David Brownell
2008-06-20  9:53                 ` Gabor Gombas
2008-06-20 14:14                   ` Matthew Dharm
2008-06-20 15:15               ` Vegard Nossum
2008-06-20 15:31                 ` Matthew Wilcox
2008-06-20 15:42                 ` Alan Stern
2008-06-20 16:37                   ` Stefan Richter

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