Ric Wheeler wrote:
Alan Cox wrote:
Ar Iau, 2006-09-21 am 12:26 -0400, ysgrifennodd Ric Wheeler:
Would this be a reasonable thing for a config option? Better to add
yet another blacklist for devices that might have a justified need
for this derating?
I think so. I've got "Adding a set of flags to blacklist entries" on my
todo list so that we can indicate and deal with different kinds of
horkage.
That could be very useful - flag specific drives to disable NCQ
(regardless of the internal setting for drive queue depth) and so on.
Yeap, in general, we need a blacklist. For example, some drives only do
NCQ w/ only 16 or so commands or others have completely broken NCQ
support. But I don't think the broken read log page 10h needs a
blacklist entry. It can be easily handled by good default behavior.
--
tejun
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