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If we can't probe the RTL80x9 for some reason, fall back to probing it

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as a Novell NE-2000.  This is necessary for unpatched qemu working
correctly.  qemu claims to be a RTL8029, but doesn't implement the
RTL8029 specific registers at this time.  I've created patches for
that, but there's no reason we can't use qemu's emulation w/o these
patches.  This should make life easier for those folks that boot
FreeBSD via qemu.
This commit is contained in:
Warner Losh 2005-10-13 22:12:34 +00:00
parent fab4f06582
commit 92a6736a5b
1 changed files with 9 additions and 2 deletions
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11
sys/dev/ed/if_ed_pci.c
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@ -82,11 +82,18 @@ ed_pci_attach(device_t dev)
{
struct ed_softc *sc = device_get_softc(dev);
int flags = 0;
int error;
int error = ENXIO;
/*
* If this card claims to be a RTL8029, probe it as such.
* However, allow that probe to fail. Some versions of qemu
* claim to be a 8029 in the PCI register, but it doesn't
* implement the 8029 specific registers. In that case, fall
* back to a normal NE2000.
*/
if (pci_get_devid(dev) == ED_RTL8029_PCI_ID)
error = ed_probe_RTL80x9(dev, PCIR_BAR(0), flags);
else
if (error)
error = ed_probe_Novell(dev, PCIR_BAR(0), flags);
if (error) {
ed_release_resources(dev);