Linksys Cardbus 10/100 performance note

[Nicholas Jenkins]

In short, I'll have to check tonight.

I purchased the card only about 1 month ago -
from buycomp.com - which I believe does enough
volume to turn over their stock quickly???

At any rate, after purchasing, I went to the Linksys
site, and I noticed a statement saying that they
had recently changed from rev C of the chip, to rev D,
and that if the supplied Linux driver did not work,
that you probably had a rev D, and that you should
look to this list for upcoming drivers.  Needless
to say, my card did not work with the supplied driver,
or any other up until rev .90p.  Actually, I got it to
work with .90K for about 5 minutes - once.

Additionally, I thought that only the "rev D" chips
required the EEPROM_SIZE set to "8"?

I think that primarily based on these 2 criteria, I
assume that I have a rev D chip.  However, when I
get home tonight, I will verify for a fact which
card I have (I assume with the diag tool I can download?)

-NICK


> -----Original Message-----
> From: Nathan Anderson [mailto:nathana@premier1.net]
> Sent: Wednesday, February 24, 1999 3:20 PM
> To: Nicholas Jenkins
> Cc: linux-tulip@beowulf.gsfc.nasa.gov
> Subject: Re: Linksys Cardbus 10/100 performance note
>
>
> On Tue, 23 Feb 1999, Nicholas Jenkins wrote:
>
> > Good Day, ALL:
> >
> > I recompiled the tulip.c driver today, using
> > various values for the "performance" register
> > setting (static int csr0 = 0x01A00000 | 0x8000; - line 82).
> >
> > After installing the latest version of the PCMCIA
> > drivers - 3.0.9, here's what I found:
> >
> > tulip.c w/csr0 = 0x01A00000 | 0x8000 yielded 40-90Kbytes/sec.
> > tulip.c w/csr0 = 0x01A00000 | 0x9000 yielded 90-130Kbytes/sec.
> > tulip.c w/csr0 = 0x01A00000 | 0xE000 yielded 890-1100Kbytes/sec.
> >
> > This was on a 10BT hubbed network, using FTP.
> >
> > Thus, it would appear that the Linksys Cardbus 10/100
> > card prefers a defined "burst limit" (0x8000 vs 0x9000), and
> > that it works better with 32 longwords for cache than 16.
>
> Nick,
>
> Are you using a 21143-TD based LinkSys Cardbus adapter, or do you have the
> original LinkSys card?
>
> TIA,
>
> -- Nathan Anderson
>    <mailto:nathana@premier1.net>
>
>
>