Disable ASPM on various devices

From: Matthew Garrett
Date: Fri Nov 11 2011 - 11:05:34 EST


If the firmware has given us control of PCIe capabilities then it's valid
for an operating system to configure ASPM more aggressively than the
firmware did. A small number of devices object to this and exhibit various
failure modes. Windows provides a mechanism to disable ASPM in the driver,
indicated by the Needs=PciASPMOptOut statement in the .inf file. Trawling
through Windows drivers has indicated the following set of hardware that
disables ASPM in Windows but doesn't currently disable it in Linux. It makes
sense for us to mimic Windows in this situation.

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