Linksys Cardbus 10/100 performance note
Wed Feb 24 15:27:17 1999
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.
Are you using a 21143-TD based LinkSys Cardbus adapter, or do you have the
original LinkSys card?
-- Nathan Anderson