PCI quirks with via82xx soundcard / sysfs paths

PCI quirks with via82xx soundcard / sysfs paths

[Mario Manno]

Hi,

I'm trying to get a via82xx onboard soundcard working in a domU.
So far it only works, if I enable permissive mode with:
echo "Y" > /sys/module/pciback/parameters/permissive
I still can't hear any sound, but the modules load fine and i can use
the alsamixer. (which most likely is unrelated to xen)


I tried to use xend-pci-quirks.sxp, but the python script fails, because
there is no /sys/bus/pci/drivers/pciback/quirks.

Adding the card to /sys/bus/pci/drivers/pciback/permissive fails with:
Error: pci: failed to open/write/close permissive sysfs node: [Errno 13]
Permission denied: '/sys/bus/pci/drivers/pciback/permissive'

The part of the documentation dealing with pci quirks and permissive
seems to be outdated. See user.pdf page 29/30.
The section about binding works perfectly, though.

I'm running debian amd64 with xen hypervisor and utils at version
3.0-unstable+hg11561-1. Two nic ports (dlink 4-port nic) are reassigned
to the domU and work fine.

lspci -n gives the following output (11.5 is the soundcard):
00:00.0 0600: 1106:0204
00:00.1 0600: 1106:1204
00:00.2 0600: 1106:2204
00:00.3 0600: 1106:3204
00:00.4 0600: 1106:4204
00:00.7 0600: 1106:7204
00:01.0 0604: 1106:b188
00:07.0 0c00: 1106:3044 (rev 80)
00:0b.0 0604: 8086:b152
00:0c.0 0280: 1397:2bd0 (rev 02)
00:0d.0 0280: 1397:2bd0 (rev 02)
00:0f.0 0101: 1106:3149 (rev 80)
00:0f.1 0101: 1106:0571 (rev 06)
00:10.0 0c03: 1106:3038 (rev 81)
00:10.1 0c03: 1106:3038 (rev 81)
00:10.2 0c03: 1106:3038 (rev 81)
00:10.3 0c03: 1106:3038 (rev 81)
00:10.4 0c03: 1106:3104 (rev 86)
00:11.0 0601: 1106:3227
00:11.5 0401: 1106:3059 (rev 60)
00:11.6 0780: 1106:3068 (rev 80)
00:12.0 0200: 1106:3065 (rev 78)
00:18.0 0600: 1022:1100
00:18.1 0600: 1022:1101
00:18.2 0600: 1022:1102
00:18.3 0600: 1022:1103
01:00.0 0300: 1106:3108 (rev 01)
02:04.0 0200: 1186:1002 (rev 15)
02:05.0 0200: 1186:1002 (rev 15)
02:06.0 0200: 1186:1002 (rev 15)
02:07.0 0200: 1186:1002 (rev 15)

thanks.
mfg
-- 
Mario Manno <m.manno@gmx.net>

Re: PCI quirks with via82xx soundcard / sysfs paths

[Keir Fraser]

On 15/10/06 16:52, "Mario Manno" <m.manno@gmx.net> wrote:

> I'm trying to get a via82xx onboard soundcard working in a domU.
> So far it only works, if I enable permissive mode with:
> echo "Y" > /sys/module/pciback/parameters/permissive
> I still can't hear any sound, but the modules load fine and i can use
> the alsamixer. (which most likely is unrelated to xen)
> 
> I tried to use xend-pci-quirks.sxp, but the python script fails, because
> there is no /sys/bus/pci/drivers/pciback/quirks.
> 
> Adding the card to /sys/bus/pci/drivers/pciback/permissive fails with:
> Error: pci: failed to open/write/close permissive sysfs node: [Errno 13]
> Permission denied: '/sys/bus/pci/drivers/pciback/permissive'

Current pciback driver does not have the 'permissive' module option. Since
yours does, and does not have the replacement 'permissive' and 'quirks'
sysfs files, you must be running an out-of-date domain0 kernel (or at least
the pciback module is out of date).

Check the build time of your kernel!

 -- Keir

Re: PCI quirks with via82xx soundcard / sysfs paths

[Mario Manno]

On Mon, 2006-10-16 at 17:56 +0100, Keir Fraser wrote:
> Current pciback driver does not have the 'permissive' module option. Since
> yours does, and does not have the replacement 'permissive' and 'quirks'
> sysfs files, you must be running an out-of-date domain0 kernel (or at least
> the pciback module is out of date).
> 
> Check the build time of your kernel!

Thanks a lot,

Imho there is something wrong with the debian dependencies of
xen-linux-system; kernel xen and hypervisor/utils versions do not match
up.

I upgraded to a debian unstable kernel (2.6.18-2) and now i can
use /etc/xen/xend-pci-quirks.sxp

I added the following lines to make the hardware work:
(sundance
    (pci_ids        ('1186:1002'))
    (pci_config_space_fields        ('00000054:2:00000000'))
)
(snd_via82xx
    (pci_ids        ('1106:3059'))
    (pci_config_space_fields        ('000000c4:2:00000000'))
)

-- 
Mario Manno <m.manno@gmx.net>

Re: PCI quirks with via82xx soundcard / sysfs paths

[Keir Fraser]

Thanks, I'll check this out and add to the file.

 K.

On 16/10/06 7:42 pm, "Mario Manno" <m.manno@gmx.net> wrote:

> I added the following lines to make the hardware work:
> (sundance
>     (pci_ids        ('1186:1002'))
>     (pci_config_space_fields        ('00000054:2:00000000'))
> )
> (snd_via82xx
>     (pci_ids        ('1106:3059'))
>     (pci_config_space_fields        ('000000c4:2:00000000'))
> )

Re: PCI quirks with via82xx soundcard / sysfs paths

[Keir Fraser]

On 16/10/06 19:42, "Mario Manno" <m.manno@gmx.net> wrote:

> (sundance
>     (pci_ids        ('1186:1002'))
>     (pci_config_space_fields        ('00000054:2:00000000'))
> )
> (snd_via82xx
>     (pci_ids        ('1106:3059'))
>     (pci_config_space_fields        ('000000c4:2:00000000'))
> )

I'd like to put a comment by each permitted register to indicate its
device-specific purpose. Unfortunately I can't find any reference to these
register offsets in the drivers, which is very weird.

What Linux kernel version do these particular drivers come from?

 -- Keir

Re: PCI quirks with via82xx soundcard / sysfs paths

[Mario Manno]

On Thu, 2006-10-19 at 16:13 +0100, Keir Fraser wrote:
> On 16/10/06 19:42, "Mario Manno" <m.manno@gmx.net> wrote:
> 
> > (sundance
> >     (pci_ids        ('1186:1002'))
> >     (pci_config_space_fields        ('00000054:2:00000000'))
> > )
> > (snd_via82xx
> >     (pci_ids        ('1106:3059'))
> >     (pci_config_space_fields        ('000000c4:2:00000000'))
> > )
> 
> I'd like to put a comment by each permitted register to indicate its
> device-specific purpose. Unfortunately I can't find any reference to these
> register offsets in the drivers, which is very weird.
> 
> What Linux kernel version do these particular drivers come from?

Well, i added them because the log messages said so... but the addresses
indeed differ from my previous setup (same hypervisor, but debian kernel
2.6.17): Sundance didn't need quirks or permissive and vi82xx complained
about more addresses.

==============
dom0# cat /proc/version
Linux version 2.6.18-1-xen-amd64 (Debian 2.6.18-2) (waldi@debian.org)
(gcc version 4.1.2 20060920 (prerelease) (Debian 4.1.1-14)) #1 SMP Fri
Sep 29 18:28:20 CEST 2006

domU# cat /proc/version
Linux version 2.6.17-2-xen-amd64 (Debian 2.6.17-9) (waldi@debian.org)
(gcc version 4.1.2 20060901 (prerelease) (Debian 4.1.1-13)) #1 SMP Wed
Sep 13 18:35:45 CEST 2006

dom0# dpkg -l 
ii  linux-image-2.6.17-2-xen-amd64      2.6.17-9
ii  linux-image-2.6.18-1-xen-amd64      2.6.18-2
ii  xen-hypervisor-3.0-unstable         3.0-unstable+hg11561-1
==============

I just upgraded the domU kernel to 2.6.18 and now i need all of the
following values for the onboard soundcard:
'000000c4:2:00000000'   # ??
'00000041:1:00000000'   # VIA_ACLINK_CTRL
'00000042:1:00000000'   # VIA_FUNC_ENABLE
'00000049:1:00000000'   # VIA8233_SPDIF_CTRL

But since i don't even get the soundcard working inside dom0, besides
mixer, i would drop this issue altogether. Asterisk will do fine without
a soundcard anyways.

Sundance however still works with 0x54.


-- 
Mario Manno <m.manno@gmx.net>