Re: Further on P4R800-VM and 3c59x

On Mon, 12 Jan 2004, Andrej Prsa wrote:

> so please correct me if I did anything foolish that could compromise the
> results of the tests! :)

Everything was fine :-)

> 11) Tried pinging my laptop, unfortunately to no avail. I continuously
>     ran tcpdump on my laptop to see whether anything comes through and
>     it doesn't.

Too bad... I was hoping this to work :-(

> While doing this, I monitored the connection with tcpdump on the laptop
> and with dmesg on the desktop. For all combinations (TxReset 0 through 8
> and RxReset 0 through 8) no improvement was noted.

OK. Another one bites the dust :-)

> Just to be absolutely sure: 4 is equivalent to 0x04, right? The original
> source contained 0x04 and I was using simply | 4.

Yes. Up to (and including) 9, 0x0N = N; hexadecimal versus decimal base :-)

> 3Com 3C920B-EMB-WNM Lan
> Driver: el90xbc5.sys

Yes, I have found these as well when looking into the Windows .INF file 
that comes with the driver from the Asus site. But it doesn't help much, 
except maybe for a name (although Radeon Tornado sounds nicer); the 
numbers for I/O and Memory Range and the IRQ are variable at runtime in 
Windows just like in Linux...

So now I think that Donald was right and we need to actively do something 
as opposed to just not disturb the power-on state with a reset. But how to 
find what to do in this case is much harder...

Hmm, another thing that I just realized, but it's just a stab in the dark:  
you've never tried to reset the transceiver after everything was up.  
Please run "mii-diag -R eth0"  after the interface is configured (after
insmod and ifconfig) and see if something changes; you need to wait up to
1 minute for the driver to catch up with any changes in the
autonegotiation, so just keep sending packets for more than a minute 
after you run "mii-diag" :-)
(you can get mii-diag from ftp.scyld.com in the same dir with 
vortex-diag).

-- 
Bogdan Costescu

IWR - Interdisziplinaeres Zentrum fuer Wissenschaftliches Rechnen
Universitaet Heidelberg, INF 368, D-69120 Heidelberg, GERMANY
Telephone: +49 6221 54 8869, Telefax: +49 6221 54 8868
E-mail: [email protected]

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