From: Roland Dreier <roland@topspin.com>
To: ebiederm@xmission.com (Eric W. Biederman)
Cc: Matt Mackall <mpm@selenic.com>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: 2.6.6-mm5
Date: 24 May 2004 10:43:30 -0700 [thread overview]
Message-ID: <52brkdwwjh.fsf@topspin.com> (raw)
In-Reply-To: <m17jv1n4fk.fsf@ebiederm.dsl.xmission.com>
Eric> If no hardware actually cared or someone could show me that
Eric> you can't generate a 64bit memory I/O cycle on the PCI bus
Eric> that would be interesting. I have seen several drivers that
Eric> care. Later today I intend to look at my pci docs and
Eric> confirm that 64bit I/O cycles do exist on the bus, even in
Eric> 32bit slots. PCI bus traffic is packet based so I would be
Eric> strongly surprised if 64bit cycles did not exist.
Hang on -- how could you generate a 64-bit cycle on a 32-bit PCI bus?
By definition a 32-bit PCI bus can only transfer 32 bits per cycle.
PCI Express traffic is packet based but parallel PCI definitely is not.
- Roland
next prev parent reply other threads:[~2004-05-24 17:43 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-22 8:36 2.6.6-mm5 Andrew Morton
2004-05-22 9:09 ` 2.6.6-mm5 Jeff Garzik
2004-05-22 9:22 ` 2.6.6-mm5 hch
2004-05-22 9:26 ` 2.6.6-mm5 Andrew Morton
2004-05-22 11:51 ` 2.6.6-mm5 R. J. Wysocki
2004-05-22 9:26 ` 2.6.6-mm5 hch
2004-05-22 9:32 ` 2.6.6-mm5 Andrew Morton
2004-05-22 9:41 ` 2.6.6-mm5 hch
2004-05-22 19:03 ` 2.6.6-mm5 Brian King
2004-05-22 9:38 ` 2.6.6-mm5 hch
2004-05-22 9:44 ` 2.6.6-mm5 Jens Axboe
2004-05-22 9:46 ` 2.6.6-mm5 Felipe Alfaro Solana
2004-05-23 15:51 ` 2.6.6-mm5 James Morris
2004-05-22 11:59 ` 2.6.6-mm5 Matthias Andree
2004-05-22 12:19 ` [patch] 2.6.6-mm5: JFFS2_FS_NAND=y compile error Adrian Bunk
2004-05-23 1:01 ` 2.6.6-mm5 Eric W. Biederman
2004-05-23 1:08 ` 2.6.6-mm5 Andrew Morton
2004-05-23 1:15 ` 2.6.6-mm5 Roland Dreier
2004-05-24 16:17 ` 2.6.6-mm5 Matt Mackall
2004-05-24 17:03 ` 2.6.6-mm5 Eric W. Biederman
2004-05-24 17:43 ` Roland Dreier [this message]
2004-05-25 7:25 ` 2.6.6-mm5 Eric W. Biederman
2004-05-23 2:45 ` 2.6.6-mm5 Eric W. Biederman
2004-05-24 22:11 ` 2.6.6-mm5 (compile stats) John Cherry
2004-05-25 13:53 ` 2.6.6-mm5 Pavel Machek
2004-05-26 12:41 ` 2.6.6-mm5 Anders Gustafsson
2004-05-26 12:49 ` 2.6.6-mm5 Jens Axboe
2004-05-26 12:59 ` 2.6.6-mm5 Anders Gustafsson
2004-05-26 13:03 ` 2.6.6-mm5 Jens Axboe
2004-05-22 10:27 2.6.6-mm5 Oleg Nesterov
2004-05-22 18:02 2.6.6-mm5 Adam Radford
[not found] <1YAd2-6Th-13@gated-at.bofh.it>
[not found] ` <1YPF4-2hJ-11@gated-at.bofh.it>
[not found] ` <1YPOI-2nq-1@gated-at.bofh.it>
[not found] ` <1YRdQ-3pu-5@gated-at.bofh.it>
2004-05-23 11:39 ` 2.6.6-mm5 Andi Kleen
2004-05-23 21:32 ` 2.6.6-mm5 Eric W. Biederman
2004-05-24 0:02 ` 2.6.6-mm5 Eric W. Biederman
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