libata: adjust speed down rules

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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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Tejun Heo 2007-11-27 19:28:57 +09:00 • committed by Jeff Garzik

parent 3884f7b0a8

commit 663f99b86a

1 changed files with 6 additions and 6 deletions

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drivers/ata/libata-eh.c

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