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author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2009-10-18 17:11:16 +0000 |
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committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2009-10-18 17:11:16 +0000 |
commit | 293ef380b87ae1fc6e29c44411db8739bef1a185 (patch) | |
tree | e27cab1973784c0d03b9a35b6b9e93760f6dca5a /sys/dev/gem | |
parent | c1e0edc6e9f931b31e1fbafe4833140fbb84d34b (diff) | |
download | FreeBSD-src-293ef380b87ae1fc6e29c44411db8739bef1a185.zip FreeBSD-src-293ef380b87ae1fc6e29c44411db8739bef1a185.tar.gz |
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
Diffstat (limited to 'sys/dev/gem')
-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 05be323..051dbcc 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"); |