Problem whit an old 3c905B-Tx

Hello

  I'm trying to use a 3C905B-Tx in a dual Pentium III Pc together with an
  other network card (a Realtek) to build a small linux router.
  I'm using RedHat 8.0 fully updated (kernel 2.4.18-27.8.0smp).

  The problem is the following: using dhcp to configure the card the system is
  unable to configure saying  that there is a network cable problem. If I
  configure the network card by hand everything works well.
  Moreover, the 3com card speed is always 10Mb instead of 100Mb.

  The output of dmesg is the following:

-------------------------------------------------------------------------------
  eth0: RealTek RTL8139 Fast Ethernet at 0xd8900000, 00:40:33:d4:b0:36, IRQ 5
  eth0:  Identified 8139 chip type 'RTL-8139A'
  eth0: Setting 100mbps full-duplex based on auto-negotiated partner ability 45e1.
  3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
  See Documentation/networking/vortex.txt
  00:09.0: 3Com PCI 3c905B Cyclone 100baseTx at 0xd000. Vers LK1.1.18-ac
  PCI: Setting latency timer of device 00:09.0 to 64
   00:10:5a:05:c8:61, IRQ 9
    product code 5146 rev 00.9 date 06-27-98
    Internal config register is 0000, transceivers 0xa.
    8K byte-wide RAM 5:3 Rx:Tx split, 10baseT interface.
    Enabling bus-master transmits and whole-frame receives.
  00:09.0: scatter/gather enabled. h/w checksums enabled
  divert: allocating divert_blk for eth1
-------------------------------------------------------------------------------

  I've tryed to remove the realtek card and nothing changes. I've installed
  the card in a windows 98 machine and it works well at full 100Mb speed (at
  least, the led for 100Mb swith on).

  The output of ./vortex-diag -a is:
-------------------------------------------------------------------------------
  vortex-diag.c:v2.14 12/28/2002 Donald Becker ([email protected])
   http://www.scyld.com/diag/index.html
  Index #1: Found a 3c905B Cyclone 100baseTx adapter at 0xd000.
   Station address 00:10:5a:05:c8:61.
    Receive mode is 0x07: Normal unicast and all multicast.
  The Vortex chip may be active, so FIFO registers will not be read.
  To see all register values use the '-f' flag.
  Initial window 7, registers values by window:
    Window 0: 0000 0000 0000 0000 f5f5 00bf 0000 0000.
    Window 1: FIFO FIFO 0000 0000 0000 0000 0000 2000.
    Window 2: 1000 055a 61c8 0000 0000 0000 000a 4000.
    Window 3: 0000 0000 05ea 0000 000a 0800 0800 6000.
    Window 4: 0000 0000 0000 0cd2 0001 88c0 0000 8000.
    Window 5: 1ffc 0000 0000 0600 0807 06ce 06c6 a000.
    Window 6: 0000 0000 0000 2300 0000 09c6 0000 c000.
    Window 7: 0000 0000 0000 0000 0000 0000 0000 e000.
  Vortex chip registers at 0xd000
    0xD010: **FIFO** 00000000 0000000a *STATUS*
    0xD020: 00000020 00000000 00080000 00000004
    0xD030: 00000000 dcd4232c 1400d030 00080004
    0xD040: 005046fb 00000000 00000000 00000000
    0xD050: 00000000 00000000 00000000 00000000
    0xD060: 00000000 00000000 00000000 00000000
    0xD070: 00009000 00000000 00200000 00000000
    DMA control register is 00000020.
     Tx list starts at 00000000.
     Tx FIFO thresholds: min. burst 256 bytes, priority with 128 bytes to empty.
     Rx FIFO thresholds: min. burst 256 bytes, priority with 128 bytes to full.
     Poll period Tx 00 ns.,  Rx 0 ns.
     Maximum burst recorded Tx 0,  Rx 32.
   Indication enable is 06c6, interrupt enable is 06ce.
    No interrupt sources are pending.
   Transceiver/media interfaces available:  100baseTx 10baseT.
  Transceiver type in use:  10baseT.
   MAC settings: half-duplex.
   Station address set to 00:10:5a:05:c8:61.
   Configuration options 000a.
-------------------------------------------------------------------------------

  The cable is working and the realtek works at 100Mb full-duplex.

  Can you help me? There is some settings to add to /etc/modules.conf
  I've tried with options=4 but the problem was the same (only that if I
  remove the 3c90x module and reinstall it by hand using ismod than the speed
  switch to 100Mb ...)

  Thank you!
	Alessandro V.

-- 
Alessandro Villani			 Tel: +39 0461 883918
Head of Computer Networks Lab.		 Fax: +39 0461 882093
University of Trento
Via Sommarive 14			 E-mail: [email protected]
38050 -- POVO (TN)   	 		 http://www.dit.unitn.it/~avillani/
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