From: Tejun Heo <htejun@gmail.com>
Date: Tue, 27 Nov 2007 10:28:57 +0000 (+0900)
Subject: libata: adjust speed down rules
X-Git-Tag: v2.6.25-rc1~1233^2~53
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=663f99b86ac7d4c0eed8c239638da0ea8849288b;p=pandora-kernel.git

libata: adjust speed down rules

Speed down rules were too conservative.  Adjust them a bit.

* More than 10 timeouts can't happen in 5 minutes as command timeout
  is 30secs.  Lower the limit for rule #1 to 6.

* 10 timeouts is too high for rule #3 too.  Lower it to 6.

* SATAPI can benefit from falling back to PIO too.  Allow SATAPI
  devices to fall back to PIO.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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