From: Jeff Garzik <jgarzik@pobox.com>
To: Mark Lord <liml@rtr.ca>
Cc: IDE/ATA development list <linux-ide@vger.kernel.org>,
Tejun Heo <htejun@gmail.com>
Subject: Re: [PATCH 02/02] sata_mv: warn on PIO with multiple DRQs
Date: Wed, 18 Jun 2008 21:56:56 -0400 [thread overview]
Message-ID: <4859BCE8.4060408@pobox.com> (raw)
In-Reply-To: <4859B9E2.4060909@rtr.ca>
Mark Lord wrote:
> Just about everything can do some form of DMA nowadays,
> but regardless of that the sata_mv chipsets have errata
> for PIO of anything more than a single sector.
>
> In practice, I haven't managed to trigger the issue here,
> but the errata descriptions indicate that it should be a major
> issue for any volume of multi-sector PIO commands.
I need to review the state of PIO-multi, but IIRC it's not used by default.
We should be able to handle this errata without banning all PIO...
Jeff
next prev parent reply other threads:[~2008-06-19 1:57 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-18 16:11 [PATCH 01/02] sata_mv: enable async_notify for 60x1 Rev.C0 and higher Mark Lord
2008-06-18 16:13 ` [PATCH 02/02] sata_mv: warn on PIO with multiple DRQs Mark Lord
2008-06-19 0:29 ` Jeff Garzik
2008-06-19 1:44 ` Mark Lord
2008-06-19 1:48 ` Tejun Heo
2008-06-19 1:56 ` Jeff Garzik [this message]
2008-06-19 2:00 ` Mark Lord
2008-06-19 6:28 ` Jeff Garzik
2008-06-19 20:23 ` Mark Lord
2008-06-19 1:57 ` [PATCH] sata_mv: safer logic for limit_warnings Mark Lord
2008-07-04 13:11 ` Jeff Garzik
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