Tejun Heo wrote:
Kristen Carlson Accardi wrote:
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
As supporting AN needs host interrupt handler change. I think we need
host-supports-AN flag; otherwise, we might end up with screaming
interrupts in the worst case.
Quite so. Lacking a host flag, we need to know how each and every
controller behaves when AN is activated (and supported by the device).
I'm willing to bet some of the first-gen SATA controllers' ASIC state
machines croak when AN is activated.
Jeff
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