From: Mark Lord <liml@rtr.ca>
To: Tejun Heo <htejun@gmail.com>
Cc: IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: WARNING: at drivers/ata/libata-core.c:5988 ata_qc_issue()
Date: Thu, 24 Jan 2008 23:01:01 -0500 [thread overview]
Message-ID: <47995EFD.8030102@rtr.ca> (raw)
In-Reply-To: <4799285F.3060308@gmail.com>
Tejun Heo wrote:
> Mark Lord wrote:
..
>> Super. And when I add FIS-based-switching PMP support on top of NCQ,
>> *then* what should it point at?
>
> If the controller can do FIS-based switching w/o any other restrictions,
> ata_std_qc_defer() can just stay. If there are restrictions, you need
> to roll your own qc_defer. sata_sil24 had to.
>
> For command-based switching, sata_pmp_qc_defer_cmd_switch() can be used.
...
Super! You've done a great job with this stuff, Tejun!
-ml
next prev parent reply other threads:[~2008-01-25 4:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-24 15:20 WARNING: at drivers/ata/libata-core.c:5988 ata_qc_issue() Mark Lord
2008-01-24 15:26 ` Tejun Heo
2008-01-24 15:56 ` Mark Lord
2008-01-24 23:36 ` Tejun Heo
2008-01-24 23:52 ` Mark Lord
2008-01-24 23:57 ` Tejun Heo
2008-01-25 0:02 ` Mark Lord
2008-01-25 0:07 ` Tejun Heo
2008-01-25 4:01 ` Mark Lord [this message]
2008-01-25 4:08 ` Tejun Heo
2008-01-25 4:29 ` Mark Lord
2008-01-25 4:36 ` Tejun Heo
2008-01-25 7:20 ` Jeff Garzik
2008-01-25 7:18 ` Jeff Garzik
2008-01-25 15:01 ` James Bottomley
2008-01-25 15:18 ` Mark Lord
2008-01-25 15:29 ` James Bottomley
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