Atheros 9285 & Atheros AR8131

[Ian Smith]

On Mon, 28 Mar 2011, John Baldwin wrote:
 > On Saturday, March 26, 2011 1:13:45 pm ÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿ wrote:
 > > Network cards do not work. Tried on systems 8.0, 8.1, and 8.2. Notebook Aser
 > > Extenza 5635ZG. Tried to change Wi-Fi adapter on the other, but the
 > > situation has not changed. In all kinds of windows and linux, works fine.
 > > 
 > > ath0: <Atheros 9285> irq 19 at device 0.0 on pci7
 > > ath0: 0x10000 bytes of rid 0x10 res 3 failed (0, 0xffffffff).
 > > ath0: cannot map register space
 > > device_attach: ath0 attach returned 6
 > > 
 > > alc0: <Atheros AR8131 PCIe Gigabit Ethernet> irq 17 at device 0.0 on pci9
 > > alc0: 0x40000 bytes of rid 0x10 res 3 failed (0, 0xffffffff).
 > > alc0: cannot allocate memory resources.
 > > device_attach: alc0 attach returned 6
 > > 
 > > Attached: dmesg, sysctl hw.acpi and acpidump -t -d
 > 
 > This is probably due to a problem FreeBSD has with ACPI initialization 
 > sometimes wiping out the state in PCI-PCI bridges for resource windows and not 
 > gracefully recovering from that.  I have some early work in progress to 
 > address this, but it will be a while before I have something ready for 
 > testing.

I'd forwarded the original message to adrian@, who's been beavering away 
on ath recently.  His take would seem to complement yours:

 > Date: Sun, 27 Mar 2011 15:39:03 +0800
 > From: Adrian Chadd <adrian at freebsd.org>
 > To: Ian Smith <smithi at nimnet.asn.au>
 > Subject: Re: Atheros 9285 & Atheros AR8131 (fwd)
 >
 > Hi,
 >
 > He's going to have crappy performance on the AR9285 on -8. I fixed a lot
 > (and I mean a lot!) of AR9285 related bugs.
 >
 > But this is likely an ACPI issue and/or general bus issue. He can't map
 > register space, that needs to be fixed. It's nothing to do with the driver
 > as far as I can tell; it's to do with the bus management stuff.
 >
 > Fix that, then we can work on his AR9285 issues. :)
 >
 > Adrian

cheers, Ian