Messages in this thread | | | Date | Sat, 18 Feb 2006 22:29:46 +0300 | From | Sergey Vlasov <> | Subject | Re: Help: DGE-560T not recognized by Linux |
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On Sat, 18 Feb 2006 10:01:26 -0700 Brian Hall wrote:
> On Fri, 17 Feb 2006 23:48:41 -0800 > Andrew Morton <akpm@osdl.org> wrote: > > Brian Hall <brihall@pcisys.net> wrote: > > > I see that the sky2 driver in 2.6.16rc4 lists my card, but for some > > > reason it fails to access the card, maybe because I have an ULi > > > chipset? > > > > > > Feb 17 23:18:46 syrinx sky2 0000:02:00.0: can't access PCI config > > > space > > > > Looks like something died way down in the PCI bus config space > > read/write operations. I don't know what would cause that. You > > could perhaps play with `pci=conf1', `pci=conf2', etc as per > > Documentation/kernel-parameters.txt. > > OK, I tried all these pci= options, plus acpi=off, to no effect: > conf1, conf2, nommconf, biosirq, noacpi, routeirq, nosort, rom, > lastbus=2, assign-busses, usepirqmask acpi=off > > Also tried adjusting PCIe-related stuff in the BIOS (underclocking PCIe > from 100 to 70 and adjusting Northbridge options). No change.
Most likely it fails here:
err = pci_write_config_dword(hw->pdev, PEX_UNC_ERR_STAT, 0xffffffffUL); if (err) goto pci_err;
PEX_UNC_ERR_STAT is 0x104; this register is outside of the standard 256-byte PCI configuration space, and is reachable only via the MMCONFIG access mechanism. Seems that kernel is not using MMCONFIG for some reason; you mentioned that you have CONFIG_PCI_MMCONFIG=y in kernel config, so it looks like your BIOS does not provide proper MCFG table. Full dmesg output might give some clues. [unhandled content-type:application/pgp-signature] | |