Subject: Re: bus_dma'ed DEFTA driver committed.
To: Jason Thorpe <thorpej@nas.nasa.gov>
From: Matt Thomas <matt@3am-software.com>
List: port-pmax
Date: 05/26/1998 21:19:10
At 02:46 PM 5/26/98 , Jason Thorpe wrote:
>On Tue, 26 May 1998 11:36:25 -0400, I wrote:
>
> > fta0 at tc0 slot 0 offset 0x0: DEC DEFTA TC FDDI SAS Controller 
> > fta0: FDDI address 08:00:2b:a0:1f:0d, FW=0.7a, HW=2, SMT V7.2 
> > fta0: FDDI Port = S (PMD = ANSI Single-Mode Type 1) 
>
>Cool!  :-)

I think so!

>Please try it with the lastest version of pmax/bus_dma.c (1.2).

After fixing the latest version, ping times are getting reasonable.

matt@baker> mips.ttcp -t -s -f m -n 8192 -u 10.16.176.70
ttcp-t: buflen=8192, nbuf=8192, align=16384/0, port=5001  udp  -> 10.16.176.70
ttcp-t: socket
ttcp-t: 67108864 bytes in 12.60 real seconds = 40.63 Mbit/sec +++
ttcp-t: 8198 I/O calls, msec/call = 1.57, calls/sec = 650.62
ttcp-t: 0.2user 12.3sys 0:12real 99% 0i+0d 0maxrss 0+2pf 0+144csw

Slow compared to my alphas but sure the Ethernet its on.  Tomorrow
I get to see if I can boot and run diskless over fddi.
-- 
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Nashua, NH                Disclaimer: I disavow all knowledge of this message