Date: Wed, 28 Mar 2012 14:38:42 -0400 From: John Baldwin <jhb@freebsd.org> To: Baptiste Daroussin <bapt@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: No disks usable on a P5NE MB (aka regession is r219737) Message-ID: <201203281438.42924.jhb@freebsd.org> In-Reply-To: <20111115231253.GC96251@azathoth.lan> References: <e15ca6b07d1d4ee72f8dc063d25505d1@etoilebsd.net> <201111151246.42038.jhb@freebsd.org> <20111115231253.GC96251@azathoth.lan>
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On Tuesday, November 15, 2011 6:12:53 pm Baptiste Daroussin wrote: > On Tue, Nov 15, 2011 at 12:46:41PM -0500, John Baldwin wrote: > [...] > > and > > > 10 remove that block : > > > http://people.freebsd.org/~bapt/workaround-to-boot-p5ne.diff > > > > Yeah, the problem is that NVIDIA chipsets seem to have really odd behavior in > > that once you turn MSI mapping on for a given node in the HyperTransport tree > > it expects all child devices to only use MSI and not INTx. Linux has a lot of > > quirk code to try to handle this by only turning on the mapping window when > > MSI is enabled for a given device. However, it has lots of hacks to try to > > find the right Host-PCI Bridge that a given device is a child of. I'm mostly > > tempted to just disable MSI on NVIDIA chipsets that have these issues rather > > than adding the same number of quirks. However I haven't really had time to > > sit down and look at this. > > > > Thanks for reply, if you can do some testing for you if you want. Please try http://www.FreeBSD.org/~jhb/patches/hostb_htmsi.patch -- John Baldwin
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