Hi,
I've been looking at memory management in ehci. IMHO to cleanly
solve the deadlock, callers need a way to pass down memory reserves
to the HCD. As they are unique to the bus, this needs a method to allocate
such reserves from the HCD.
So a few questions arise.
1. Can every HCD compute how much reserves it would need in the
worst case to transfer one buffer of a given size over a given endpoint?
2. Can the SCSI layer deal with partially executed sg requests?
Regards
Oliver
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