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author | Nathan Whitehorn <nwhitehorn@FreeBSD.org> | 2009-10-18 17:11:16 +0000 |
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committer | Nathan Whitehorn <nwhitehorn@FreeBSD.org> | 2009-10-18 17:11:16 +0000 |
commit | 635dc3f7ffc279095d5e971d785578849c72db95 (patch) | |
tree | e27cab1973784c0d03b9a35b6b9e93760f6dca5a | |
parent | 6b95af36e0d50e7d05e77eeba88198f0b34e652f (diff) | |
download | src-635dc3f7ffc279095d5e971d785578849c72db95.tar.gz src-635dc3f7ffc279095d5e971d785578849c72db95.zip |
Work around a quirk with the G5 Xserve, which has a fake GMAC controller
with an all-zero MAC address. In this case, don't attach.
Discussed with: marius
Notes
Notes:
svn path=/head/; revision=198211
-rw-r--r-- | sys/dev/gem/if_gem_pci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/dev/gem/if_gem_pci.c b/sys/dev/gem/if_gem_pci.c index 05be3236ca7e..051dbcc5bfbd 100644 --- a/sys/dev/gem/if_gem_pci.c +++ b/sys/dev/gem/if_gem_pci.c @@ -295,6 +295,16 @@ gem_pci_attach(device_t dev) GEM_PCI_ROM_OFFSET + j + PCI_VPDRES_LARGE_SIZE + PCI_VPD_SIZE, sc->sc_enaddr, ETHER_ADDR_LEN); #endif + /* + * The Xserve G5 has a fake GMAC with an all-zero MAC address. + * Check for this, and don't attach in this case. + */ + + for (i = 0; i < ETHER_ADDR_LEN && sc->sc_enaddr[i] == 0; i++) {} + if (i == ETHER_ADDR_LEN) { + device_printf(dev, "invalid MAC address\n"); + goto fail; + } if (gem_attach(sc) != 0) { device_printf(dev, "could not be attached\n"); |