$ mii-tool -v eth0
eth0: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:aa:00, model 56 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
At least ethtool knows that the card is capable of gigabit.
Leni.
Atul Talesara wrote:
Did you try: /sbin/mii-tool Check it's man to see supported media tech. You can force it's speed negotiation. HTH.
Regards,
Atul P Talesara
http://the-shaolin.blogspot.com/
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Given enough time and money, eventually
M$ will re-invent UNIX!!!
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----Original Message-----
From: Leni Mayo [mailto:[EMAIL PROTECTED] Sent: Thursday, May 12, 2005 5:26 PM
To: debian-user@lists.debian.org
Subject: gigabit ethernet stuck at 100Mbps
Hi -
I'm stumped if I can figure out how to get my supposedly gigabit NIC to actually negotiate at 1000 Mbps.
If anyone can suggest techniques for debugging and/or fixing this sort of problem I'd be grateful.
There are two Gigabit ethernet cards in the computer, which appear in /proc/pci as: Ethernet controller: Intel Corp. 82547EI Gigabit Ethernet Controller DGE-530T Gigabit Ethernet Adapter
The problem is with the Intel card, and here is the first sign of trouble:
$ dmesg | grep eth0 e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex eth0: no IPv6 routers present
The driver reports that the link has been negotiated at 100 Mbps. The LED on the 3com OfficeConnect Gigabit switch shows solid green at 100 Mbps too.
The switch port connected to the D-Link DGE-530T card shows a green LED at 1000 Mbps, so that's something.
$ ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: umbg Wake-on: g Current message level: 0x00000007 (7) Link detected: yes
The card is supposedly advertising 1000baseT/Full but it negotiates to only 100 Mb/s!
$ ethtool -s eth0 speed 1000
exits with status code 1. The LED for the switch port flashes during the negotiation, which seems normal. But the speed remains at only 100 Mbps.
All I can imagine is that there's a driver issue or that there is something specific whereby the Intel NIC and the 3com switch don't like each other.
$ insmod e1000 Speed=1000 and $ insmod e1000 AutoNeg=0x20
both cause ethtool to report: Speed: Unknown! (65535)
I've also tried compiling the driver into the kernel, and had a look at the the nictools-pci package, which doesn't seem to have anything relevant to this particular intel card, and mii-diag doesn't appear to know anything about gigabit.
The cheapest solution at this point is definitely go out and buy a second D-link gigabit card. But having got this far, I'd thought I'd ask whether anyone had suggestions for debugging and/or fixing it.
The kernel version is 2.6.8.
Thanks.
Leni.
PS: in case this is useful...
$ ethtool -d eth0
MAC Registers ------------- 0x00000: CTRL (Device control register) 0x183C0241 Duplex: full Endian mode (buffers): little Link reset: normal Set link up: 1 Invert Loss-Of-Signal: no Receive flow control: enabled Transmit flow control: enabled VLAN mode: disabled Auto speed detect: disabled Speed select: 1000Mb/s Force speed: no Force duplex: no 0x00008: STATUS (Device status register) 0x00000343 Duplex: full Link up: link config TBI mode: disabled Link speed: 100Mb/s Bus type: PCI Bus speed: 33MHz Bus width: 32-bit 0x00100: RCTL (Receive control register) 0x00008002 Receiver: enabled Store bad packets: disabled Unicast promiscuous: disabled Multicast promiscuous: disabled Long packet: disabled Descriptor minimum threshold size: 1/2 Broadcast accept mode: accept VLAN filter: disabled Cononical form indicator: disabled Discard pause frames: filtered Pass MAC control frames: don't pass Receive buffer size: 2048 0x02808: RDLEN (Receive desc length) 0x00001000 0x02810: RDH (Receive desc head) 0x00000086 0x02818: RDT (Receive desc tail) 0x00000080 0x02820: RDTR (Receive delay timer) 0x00000000 0x00400: TCTL (Transmit ctrl register) 0x000400FA Transmitter: enabled Pad short packets: enabled Software XOFF Transmission: disabled Re-transmit on late collision: disabled 0x03808: TDLEN (Transmit desc length) 0x00001000 0x03810: TDH (Transmit desc head) 0x00000016 0x03818: TDT (Transmit desc tail) 0x00000016 0x03820: TIDV (Transmit delay timer) 0x00000040 PHY type: IGP
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