On 08/06/13 03:24, aseem.jolly wrote:
I don't want to play around with 'kern.maxbcache', can we actually allow
driver to support 64 bit DMA?
In future we can use a bootarg/sysctl to enable this support if someone
comes across this issue else we will use 32 bit DMA allocations.
I am willing to enable this support, please guide me.
Hi,
You can start with the EHCI driver, if you like. Download the EHCI PDF
from INTEL's site. Figure out all the 32-bit HIGH fields and put valid
data in them. For all 32-bit address there is a corresponding 32-bit
high field.
Thank you!
--HPS
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