Messages in this thread |  | | Date | Thu, 16 Nov 2006 11:04:41 +0100 | From | Brice Goglin <> | Subject | [PATCH] ALSA: hda-intel - Disable MSI support by default] |
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(forgot to cc: LKML)
Roland Dreier wrote: > > A whitelist is an awkward solution, the problem is the number of > > chipsets available with MSI will continue to grow. And the assumption > > is that after Microsoft OS supports MSI, that newer chipsets will work. > > Maybe a whitelist for older systems and then enable everything after a > DMI cutoff date by default? Doesn't work on non-PC stuff though...
When I started sending patches about all this, I proposed a whitelist for PCI bridges and a blacklist for PCIe bridges, but Greg was against whitelisting.
Now, reading this thread, I am very disturbed with the idea of disabling MSI on all non-Intel bridges. Blacklisting correctly shouldn't be that hard. From my point of view, there are several non-Intel bridges that seem to support MSI very well (especially some HT<->PCIe bridges). And apart from being required for ipath, MSI improves the performance of network drivers a bit, so I'd rather keep it enabled on trusted bridges...
Brice
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