lkml.org 
[lkml]   [2008]   [Jul]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: PCI: MSI interrupts masked using prohibited method
On Tue, 22 Jul 2008 10:52:26 -0700
Jesse Barnes <jbarnes@virtuousgeek.org> wrote:

> On Tuesday, July 22, 2008 6:56 am Michal Schmidt wrote:
> > This breaks the setting of SMP affinity for MSI interrupts :-(
> > With the patch, writes to /proc/irq/<n>/smp_affinity are ignored
> > for an MSI interrupt.
>
> It should only break it for devices that don't provide a mask bit.

Yes, smp_affinity works for devices with a mask bit.

> But given that we can't really mask generically on those devices,
> maybe that's ok given that it fixes the other problems mentioned in
> this thread...

Does it mean there is no way IRQ migration could work reliably for
devices without a mask bit?

Michal


\
 
 \ /
  Last update: 2008-07-23 15:05    [W:0.105 / U:3.784 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site