diff options
Diffstat (limited to 'sys/pci')
| -rw-r--r-- | sys/pci/if_pcn.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/pci/if_pcn.c b/sys/pci/if_pcn.c index eced632..6bf15e0 100644 --- a/sys/pci/if_pcn.c +++ b/sys/pci/if_pcn.c @@ -440,8 +440,16 @@ static int pcn_probe(dev) chip_id = pcn_bcr_read16(sc, PCN_BCR_PCISUBSYSID); chip_id <<= 16; chip_id |= pcn_bcr_read16(sc, PCN_BCR_PCISUBVENID); + /* + * Note III: the test for 0x10001000 is a hack to + * pacify VMware, who's pseudo-PCnet interface is + * broken. Reading the subsystem register from PCI + * config space yeilds 0x00000000 while reading the + * same value from I/O space yeilds 0x10001000. It's + * not supposed to be that way. + */ if (chip_id == pci_read_config(dev, - PCIR_SUBVEND_0, 4)) { + PCIR_SUBVEND_0, 4) || chip_id == 0x10001000) { /* We're in 16-bit mode. */ chip_id = pcn_csr_read16(sc, PCN_CSR_CHIPID1); chip_id <<= 16; |
