What does Linux need to do for supporting LER(intel's live errorrecovery) ?

From: Lin-Bao Zhang
Date: Fri Apr 27 2012 - 04:32:07 EST


we know Intel has release IV-bridge CPU which has LER feature .
1, I want to know what linux needs to do for supporting LER feature .

2, what's the difference between AER and LER ?

another point: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=a654e5ee4f2213844d23361eda4955fe9efaf35f
aer_recover_queue() is called when recoverable PCIe AER errors are
notified by firmware to do the recovery work.
Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx

this patch claimed that Linux kernel has supported firmware first
feature and can call correctly original devices' recovery functions .
my question is that :
3, if CPU supports LER feature ,we linux kernel will enhance this patch ?
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