[tulip] Slow transmits in embedded MIPs Linux

[Donald Becker]

On Mon, 12 Feb 2001, Winefred Washington wrote:

> My company uses a version of embedded Linux by Lineo in a MIPs based
> product. We have a ST Microelectronics Ethernet chip onboard. The chip
> reports it is running at 100Mb (and the hub agrees); however, we are
> getting a very slow data rate ~12Mb. I suspect we are having a problem
> with a timer interrupt, the HZ variable or jiffies. Does the tulip
> driver depend on some sort of timer interrupt or when send packets or
> is the timer only used for tx timeouts? 

The timer is used only for timeout and media monitoring.

[[  Isn't Lineo providing support for their product? ]]

Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Second Generation Beowulf Clusters
Annapolis MD 21403			410-990-9993