From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andre Hedrick <andre@linux-ide.org>
Cc: Nathan Bryant <nbryant@optonline.net>,
linux-scsi@vger.kernel.org, Pavel Machek <pavel@ucw.cz>
Subject: Re: device_suspend() levels [was Re: [patch] ACPI work on aic7xxx]
Date: Tue, 27 Jul 2004 21:18:00 -0400 [thread overview]
Message-ID: <1090977479.2006.30.camel@gaston> (raw)
In-Reply-To: <Pine.LNX.4.10.10407260026590.1977-100000@master.linux-ide.org>
On Mon, 2004-07-26 at 03:32, Andre Hedrick wrote:
> Ben,
>
> Remember to prevent suspend "BRAIN DAMAGE", scsi has host-hba
> dma-queue-rings to manage. I have thought about this for a while and have
> considered a glass of scotch or two ease the pain.
>
> SCSI != IDE
>
> IDE is a simple child by comparison.
>
> SCSI is painful because the hardware specifically prevents raw low-level
> access to the bus-phase.
Hi Andre !
That shouldn't be a problem in our case though, but the scsi layer more
complicated command queuing mecanism is...
Ben.
next prev parent reply other threads:[~2004-07-28 1:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-20 15:22 [patch] ACPI work on aic7xxx Nathan Bryant
2004-07-20 15:59 ` Pavel Machek
2004-07-20 16:48 ` Nathan Bryant
2004-07-20 17:46 ` device_suspend() levels [was Re: [patch] ACPI work on aic7xxx] Pavel Machek
2004-07-20 18:10 ` Nathan Bryant
2004-07-20 18:25 ` Benjamin Herrenschmidt
2004-07-20 18:34 ` Nathan Bryant
2004-07-20 19:10 ` Benjamin Herrenschmidt
2004-07-20 19:23 ` Pavel Machek
[not found] ` <40FD82B1.8030704@optonline.net>
2004-07-20 20:41 ` Benjamin Herrenschmidt
2004-07-20 20:50 ` Nathan Bryant
2004-07-20 21:02 ` Benjamin Herrenschmidt
2004-07-24 15:31 ` Nathan Bryant
2004-07-24 16:00 ` Benjamin Herrenschmidt
2004-07-24 16:45 ` Nathan Bryant
2004-07-24 18:35 ` Benjamin Herrenschmidt
2004-07-25 0:19 ` Nathan Bryant
2004-07-25 22:10 ` Benjamin Herrenschmidt
2004-07-26 7:32 ` Andre Hedrick
2004-07-28 1:18 ` Benjamin Herrenschmidt [this message]
2004-07-26 14:02 ` Nathan Bryant
2004-07-28 1:16 ` Benjamin Herrenschmidt
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