From: John Ackermann (terhi.victor@logonet.com)
Date: Thu Jan 04 2001 - 14:53:18 EET
> Hi John,
>
> On Tue, 2 Jan 2001, John Ackermann wrote:
> > However, I get a stream of messages to the console saying "ax1:
> > transmit timed out, driver problem?". I also get the same message for
> > ax2. ax1 is the master side of the pty. Another data point is that if
> > I "ifconfig ax1 down" and then bring it back up, the error messages
> > seem to stop. Any ideas what's causing this?
>
> Which kernel version are u using?
2.2.17 on a Debian 2.2 system, with the latest ax.25 tools, etc.
>
> > The second problem relates to the dmascc driver which is running an
> > Ottawa PI card. In ifconfig's output I'm seeing a lot of RX frame
> > errors -- about 1/3 of the total number of RX packets shown. What does
> > the "frame" error signify? Could it be a sign of either TXD or TXtail
> > being too short on one of the stations being heard, such that the flags
> > are being cut off? I didn't notice this error with the old
> > motherboard, but that may just be a coincidence.
>
> I can't see how you can get be getting frame errors as the driver does
> count them (in 2.4.x)?!?! mmm, maybe dmascc needs an audit...
>
> What does the output of ifconfig look like?
jra@mvfma:~$ /sbin/ifconfig dmascc0
dmascc0 Link encap:AMPR AX.25 HWaddr W8APR-12
inet addr:44.71.36.130 Mask:255.255.255.128
UP RUNNING MTU:256 Metric:1
RX packets:21682 errors:6437 dropped:0 overruns:0 frame:6437
TX packets:14159 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:64
Interrupt:5 Base address:0x380 DMA chan:3
> What parameters are u using?
I'm using the PI card in internally clocked mode at 19.2kbps:
/usr/sbin/dmascc_cfg dmascc0 --speed 614400 --nrzi 1 --clocks 0x78 \
--sqdelay 3 --txdelay 50 --persist 32 --slottime 50 --dma 3
/bin/sleep 1
/sbin/ifconfig dmascc0 44.71.36.130 hw ax25 w8apr-12
/sbin/ifconfig dmascc0 broadcast 44.71.36.255 netmask 255.255.255.128
/sbin/ifconfig dmascc0 arp mtu 256 up
/sbin/route add -net 44.71.36.128 irtt 1500 mss 216 window 256 dmascc0
73,
John
-- John Ackermann N8UR Dayton, Ohio, USA qixwnz@blg.ch -- http://www.febo.com-----BEGIN PGP PUBLIC KEY BLOCK----- Version: 2.6.3a
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