[Bug 188897] [dc] dc ethernet driver seems to prevent the detection of other NIC chipsets

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=188897

John Baldwin <jhb at FreeBSD.org> changed:

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                 CC|                            |jhb at FreeBSD.org

--- Comment #5 from John Baldwin <jhb at FreeBSD.org> ---
I would also need a verbose dmesg (so dmesg from 'boot -v') for both of your
PRs.  In particular, I need to see what the PCI-PCI bridge driver is doing
under the hood to manage its windows.  It seems odd to me that your BIOS is
assigning prefetchable memory to the memory registers for these devices.  One
hack would be to force the re(4) driver to use its I/O bar instead of its
memory bar (you can set the 'hw.re.prefer_iomap=1' tunable in loader.conf to
test this).  That would confirm that the issue is with the memory BAR.

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