lkml.org 
[lkml]   [2006]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectDisable INTx when enabling MSI
Some device manufacturers seem to think it's the OS's responsibility to 
disable legacy interrupt delivery when using MSI. If the driver doesn't
handle it (which they generally don't), and the device isn't PCI-Express,
a steady stream of legacy interrupts will be delivered in addition to the
MSI ones, eventually leading to the legacy IRQ getting disabled, which
kills any device that shares it.

Jeff proposed a patch in http://lkml.org/lkml/2006/11/21/332 when Linus
wanted to do it in the PCI layer, but nobody seems to have told the actual
PCI maintainer.

I'm trying to get a patch into -stable to do pci_intx in exactly the same
situations, but only for forcedeth (which is the device that's causing
problems for me), but that requires that the real solution be merged in
the mainline.

-Daniel
*This .sig left intentionally blank*
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-12-07 23:33    [W:0.048 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site