GigE on PowerMac G5

[Andreas Schwab]

I suppose the NIC in the PowerMac G5 can do GigE, yet when plugged into a
GB switch it is only willing to talk 100MB with it.  Any idea why?  Kernel
is 2.6.16-rc5-git2.

# lsprop /proc/device-tree/ht at 0,f2000000/pci at 6/ethernet at f
name             "ethernet"
linux,phandle    ff9c53d8
interrupt-parent ff9779b0
gbit-phy        
assigned-addresses 82047810 00000000 80400000 00000000 00200000
                 82047830 00000000 80300000 00000000 00100000
local-mac-address 00 0a 95 ba b8 70                              .....p
stats            00000000 00000000 00000000 00000000 00000000
reg              00047800 00000000 00000000 00000000 00000000
                 02047810 00000000 00000000 00000000 00020000
                 02047830 00000000 00000000 00000000 00010000
max-frame-size   000005ee (1518)
address-bits     00000030 (48)
built-in        
compatible       "K2-GMAC"
category         "net"
removable        "network"
network-type     "ethernet"
device_type      "network"
fast-back-to-back
devsel-speed     00000002
max-latency      00000040 (64)
min-grant        00000040 (64)
interrupts       00000029 00000001
class-code       00020000 (131072)
revision-id      00000000
device-id        0000004c (76)
vendor-id        0000106b (4203)
# ethtool eth0
Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Half 1000baseT/Full 
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Half 1000baseT/Full 
        Advertised auto-negotiation: No
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Current message level: 0x00000007 (7)
        Link detected: yes

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab at suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."