[PATCH] sata_sil24: implement loss of completion interrupt on PCI-X errta fix

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SiI3124 might lose completion interrupt if completion interrupt occurs
shortly after SLOT_STAT register is read for the previous completion
interrupt if it is operating in PCI-X mode.

This currently doesn't trigger as libata never queues more than one
command, but it will with NCQ changes.  This patch implements the
workaround - turning on WoC and explicitly clearing interrupt.

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

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Tejun Heo 2006-04-11 22:32:19 +09:00 • committed by Jeff Garzik

parent 9466d85bb2

commit 37024e8ee0

1 changed files with 25 additions and 2 deletions

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drivers/scsi/sata_sil24.c

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