2004-01-07 13:38:26

by Florian Weimer

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Subject: [2.6.0] autonegotiation broken with 3c905C

On Linux 2.6.0 (and earler -test versions), the card is stuck in
10-BaseT half-duplex mode, at least according to mii-tool. The abysmal
TCP performance for bulk transfers *from* that host suggests that it's
true. 8-(

Boot messages are:

kernel: 3c59x: Donald Becker and others. http://www.scyld.com/network/vortex.html
kernel: 0000:00:08.0: 3Com PCI 3c905C Tornado at 0xd000. Vers LK1.1.19

"lspci -v" shows the following output:

00:08.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 30)
Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management NIC
Flags: bus master, medium devsel, latency 32, IRQ 11
I/O ports at d000 [size=128]
Memory at e3000000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2

Any suggestions?

(The card is fine with 2.4.21.)


2004-01-08 07:37:30

by Andrew Morton

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Subject: Re: [2.6.0] autonegotiation broken with 3c905C

Florian Weimer <[email protected]> wrote:
>
> On Linux 2.6.0 (and earler -test versions), the card is stuck in
> 10-BaseT half-duplex mode, at least according to mii-tool. The abysmal
> TCP performance for bulk transfers *from* that host suggests that it's
> true. 8-(

grr, someone should fix this.

Could you please gather all the info which is described in
Documentation/networking/vortex.txt under both 2.4 and 2.6 and send it to
me? I'll see if I can remember how the darn thing works.

Thanks.