From: Jake Moilanen <moilanen@austin.ibm.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH][0/2] RTAS MSI
Date: Fri, 28 Jul 2006 13:42:21 -0500 [thread overview]
Message-ID: <1154112142.29826.297.camel@goblue> (raw)
In-Reply-To: <802085A1-AA37-4787-A2D6-B619C6BE7AB4@kernel.crashing.org>
On Fri, 2006-07-28 at 20:43 +0200, Segher Boessenkool wrote:
> >> The RTAS patch skips the intel-centric MSI layer and uses
> >> pci_enable/disable_msi() calls directly. It does not correctly
> >> handle
> >> multi-vector MSI either.
> >
> > Multi-vector MSIs aren't handled by the linux API anyway it seems (the
> > doc says pci_enable_msi() only ever enables one MSI) so that's fine if
> > you don't handle them :) The word on the street is that multivector
> > MSIs
> > aren't useful, MSI-X are.
>
> pci_enable_msi() should always enable exactly one or zero MSIs. Maybe
> Jake's patch doesn't follow this rule, and that is what he alluded to?
Sorry, I was less-than-clear. I was going to use this same framework
for MSI-X, and I was saying that it is not being correctly handled at
this point.
Jake
next prev parent reply other threads:[~2006-07-28 18:45 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-27 18:15 [PATCH][0/2] RTAS MSI Jake Moilanen
2006-07-27 18:17 ` [PATCH][1/2] export msi symbols Jake Moilanen
2006-07-27 18:41 ` Segher Boessenkool
2006-07-27 18:27 ` [PATCH][2/2] RTAS MSI Jake Moilanen
2006-07-27 18:46 ` Segher Boessenkool
2006-07-27 18:50 ` Segher Boessenkool
2006-07-27 19:34 ` Jake Moilanen
2006-07-27 20:35 ` Segher Boessenkool
2006-07-31 4:07 ` Paul Mackerras
2006-07-31 19:55 ` Jake Moilanen
2006-07-31 4:33 ` Michael Ellerman
2006-07-31 20:47 ` Jake Moilanen
2006-07-31 21:01 ` Jake Moilanen
2006-08-01 23:26 ` Michael Ellerman
2006-08-02 5:35 ` Segher Boessenkool
2006-08-02 9:04 ` Michael Ellerman
2006-08-09 9:50 ` Benjamin Herrenschmidt
2006-08-10 8:03 ` Michael Ellerman
2006-08-10 8:18 ` Benjamin Herrenschmidt
2006-07-28 4:56 ` [PATCH][0/2] " Benjamin Herrenschmidt
2006-07-28 18:43 ` Segher Boessenkool
2006-07-28 18:42 ` Jake Moilanen [this message]
2006-07-28 18:53 ` Segher Boessenkool
2006-08-09 2:23 ` Michael Ellerman
2006-08-09 9:52 ` Segher Boessenkool
2006-08-09 10:27 ` Michael Ellerman
2006-08-09 15:41 ` Benjamin Herrenschmidt
2006-08-10 8:22 ` Michael Ellerman
2006-08-10 9:23 ` Benjamin Herrenschmidt
2006-08-09 15:38 ` Benjamin Herrenschmidt
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