On Wed, 18 Feb 2009, James Bottomley wrote:
On Wed, 2009-02-18 at 10:04 -0800, Andrew Morton wrote:
On Wed, 18 Feb 2009 04:27:28 -0800 (PST) david@xxxxxxx wrote:
On Wed, 18 Feb 2009, Matthew Wilcox wrote:
On Tue, Feb 17, 2009 at 08:40:09PM -0800, Yinghai Lu wrote:
Impact: workaround BIOS that doesn't enable that bit
David reported that LSI sas doesn't work with MSI.
it turns out that BIOS doesn't enable HT MSI
8132 does support HT MSI.
add quirk to enable it
Reported-by: David Lang <david@xxxxxxx>
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
Reviewed-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Jesse, I think this should go into Linus' tree sooner rather than later.
please forward to -stable as well. this is a regression since the card
works with older kernels.
Which kernel version introduced the regression?
Technically, it's not a regression. The MSI problem has always been
there, it was just exposed when the SAS card switched to using MSI by
default. It's fixed by the bridge quirk ... of course it's unclear how
many more bridges with problems there are.
Do we not need mpt-fix-enable-lsi-sas-to-use-msi-as-default.patch as
well, to fix this regression?
No ... it's a separate issue. MSI was enabled for fusion SAS in 2.6.26;
the problem msi patch which the above corrects actually has the effect
of disabling MSI for fusion and went into 2.6.29-rc2, which isn't a
kernel that's been tested here.
actually, some of the failed tests were using the 2.6.29-rc5+ git tree
pulled last evening. so that should have included any fixes that went into
-rc2
David Lang
I sent mpt-fix-enable-lsi-sas-to-use-msi-as-default.patch to the
maintainers a week ago and it was ignored, along with everything else.
If this happens again I shall merge it under my own cognisance, along
with everything else.
Yes, they've been a bit unresponsive. I'm not unhappy with the current
situation, since MSI is globally disabled for fusion at the moment (so
we shouldn't get any more MSI problem reports), so I'm happy to wait and
see what they want to do.
James
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