From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Bruce Edge <bruce.edge@gmail.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: pv-ops domU not working with MSI interrupts on Nehalem
Date: Thu, 14 Oct 2010 09:57:09 -0400 [thread overview]
Message-ID: <20101014135709.GA2727@dumpdata.com> (raw)
In-Reply-To: <AANLkTikj1WrA18Y7VFf8utBDMeKz4+nz8Cxxz0bmfGe8@mail.gmail.com>
> >> You can't use SG buffers? And chain them together and provide them
> >> to the device? A lot of other drivers do this ...
> >
> > Perhaps. I don't know. I'm not the driver author. I think that it
> > worked using 1 giant buffer before so there was no need to use SG
> > buffers.
>
> Got some more info. It's a hardware requirement for the tachyon chip.
> It uses a 2 MB block for the FC SEST index table. It's one place where
> we can't use SG.
OK, pci_alloc_consistent is the way. I think you can go up to 2MB with it.
> It really not a matter of laziness.
<nods>
next prev parent reply other threads:[~2010-10-14 13:57 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-27 15:52 pv-ops domU not working with MSI interrupts on Nehalem Bruce Edge
2010-09-27 17:24 ` Konrad Rzeszutek Wilk
2010-09-27 19:16 ` Bruce Edge
2010-09-27 19:54 ` Konrad Rzeszutek Wilk
2010-09-27 23:54 ` Bruce Edge
2010-09-28 1:15 ` Jiang, Yunhong
2010-09-28 3:16 ` Bruce Edge
2010-09-28 3:26 ` Jiang, Yunhong
2010-09-28 4:45 ` Bruce Edge
2010-09-28 16:08 ` Lin, Ray
2010-09-28 16:19 ` Konrad Rzeszutek Wilk
2010-09-28 18:35 ` Lin, Ray
2010-09-28 20:14 ` Konrad Rzeszutek Wilk
2010-09-28 20:38 ` Lin, Ray
2010-09-29 0:53 ` Jiang, Yunhong
2010-09-30 16:30 ` Lin, Ray
2010-09-28 14:56 ` Konrad Rzeszutek Wilk
2010-09-30 18:55 ` Bruce Edge
2010-10-01 21:11 ` Konrad Rzeszutek Wilk
2010-10-01 21:19 ` Bruce Edge
2010-10-01 23:30 ` Bruce Edge
2010-10-03 5:46 ` Bruce Edge
2010-10-03 12:08 ` Pasi Kärkkäinen
2010-10-04 14:48 ` Konrad Rzeszutek Wilk
2010-10-05 18:21 ` Bruce Edge
2010-10-06 14:21 ` Konrad Rzeszutek Wilk
2010-10-06 18:21 ` Bruce Edge
2010-10-08 16:48 ` Lin, Ray
2010-10-08 17:30 ` Konrad Rzeszutek Wilk
2010-10-08 17:40 ` Lin, Ray
2010-10-08 17:52 ` Bruce Edge
2010-10-08 21:01 ` Lin, Ray
2010-10-08 17:56 ` Bruce Edge
2010-10-11 21:12 ` Bruce Edge
2010-10-11 21:46 ` Konrad Rzeszutek Wilk
2010-10-13 21:36 ` Bruce Edge
2010-10-13 21:46 ` Konrad Rzeszutek Wilk
2010-10-13 22:00 ` Bruce Edge
2010-10-13 22:08 ` Bruce Edge
2010-10-14 13:57 ` Konrad Rzeszutek Wilk [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-09-28 23:25 Lin, Ray
2010-09-28 23:57 ` Konrad Rzeszutek Wilk
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