[Bug 196980] [pci] PCI Resource Allocation Causing 2 em devices to fail during initialization

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196980

Peter Eriksson <peter at ifm.liu.se> changed:

           What    |Removed                     |Added
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                 CC|                            |peter at ifm.liu.se

--- Comment #6 from Peter Eriksson <peter at ifm.liu.se> ---
Just a quick comment that this indeed seems to be a problem in 10.2-RELEASE
also.

I tried the MSI-quirks hack described above but it makes no difference.

In my case (also using Sun Fire X4500 - Thumper) the following devices seems to
be affected:

> pcib8: <ACPI PCI-PCI bridge> at device 6.0 on pci4
> pcib8: failed to allocate initial I/O port window: 0xd000-0xdfff

> em2: <Intel(R) PRO/1000 Legacy Network Connection 1.0.6> mem 0xfdbe0000-0xfdbfffff irq 61 at device 1.0 on pci8
> em2: 0x40 bytes of rid 0x20 res 4 failed (0, 0xffffffffffffffff).
> em2: Unable to allocate bus resource: ioport
> em2: Allocation of PCI resources failed
> device_attach: em2 attach returned 6

> em2: <Intel(R) PRO/1000 Legacy Network Connection 1.0.6> mem 0xfdbc0000-0xfdbdffff irq 62 at device 1.1 on pci8
> em2: 0x40 bytes of rid 0x20 res 4 failed (0, 0xffffffffffffffff).
> em2: Unable to allocate bus resource: ioport
> em2: Allocation of PCI resources failed
> device_attach: em2 attach returned 6

> pcib14: <ACPI PCI-PCI bridge> at device 8.0 on pci9
> pcib14: failed to allocate initial I/O port window: 0xf000-0xffff

> ppc0: cannot reserve I/O port range

(the ppc0 is not really a problem though - doubt there even is a parallel
printer port :-)

- Peter

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