Support for primary rate

[Hans Petter Selasky]

Hi,

I just want to let you know that support for Primary Rate is almost finished. 

I have done some testing on a Pentium 200MHz, and can show you the following 
numbers at 4MBit/second total transfer rate:

31 channels(rx+tx) under HDLC emulation: CPU load: 20% (according to ps)
31 channels(rx+tx) under hardware HDLC:  CPU load: 10% (according to ps)

It would run on a 33MHz even :-)

NOTE: the HDLC-emulator has to pipes reading, and one pipe writing, hence I 
used two devices for this experiment. The hardware HDLC has only got one pipe 
reading and one pipe writing. So a more fair view is:

10% / 2 = 5% per 2MBit/s
20% / 3 = 7% per 2MBit/s

So software HDLC is very fast.

I expect something working by the end of next week. The chip I have added 
support for is HFC-E1, and cards with that device can be bought at: 
http://www.beronet.com and http://www.junghanns.net for around 500 euros, 
which is not so bad.

--HPS