ahci: fix notification handling

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Asynchronous notification on ICH9 didn't work because it didn't write
AN FIS into the RX area - it only updates SNotification.  Also,
snooping SDB_FIS RX area is racy against further SDB FIS receptions.
Let sata_async_notification() determine using SNTF if it's available
and snoop RX area iff SNTF isn't available

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

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Tejun Heo 2007-10-09 15:02:23 +09:00 • committed by Jeff Garzik

parent 1c954a4d9a

commit 5f226c6bf7

1 changed files with 21 additions and 9 deletions

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drivers/ata/ahci.c

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