What does this mii-diag output mean?

[Kallol Biswas]

I have solved this problem by increasing the delay 
value between write and read.

> I am having a problem with the control register (REG0) of PHY.
> I wrote 0x3300 to it but when read back it became 0x0080
> and the driver did not work.
> 
> Any input on what might be the cause of this problem is greatly 
> appreciated.
> 
> 
> > 
> y On Tue, 7 Mar 2000, Sarah James wrote:
> > 
> > > I'm having a hard time deciphering this output from mii-diag. The numbers
> > > don't match what is given in
> > > http://cesdis.gsfc.nasa.gov/linux/diag/mii-status.html
> > > 
> > > Here it is:
> > > 
> > > Basic registers of MII PHY #1:  3000 782d 02a8 0154 05e1 40a1 0001 0000.
> > > Basic mode control register 0x3000: Auto-negotiation enabled.
> > > You have link beat, and everything is working OK.
> > > Your link partner advertised 40a1: 100baseTx 10baseT.
> > > 
> > > The mode of the network we're connected to is supposed to be a 10MB full
> > > duplex.
> > > 
> > > Does this output confirm that our Intel eepro sees this and is configured
> > > correctly?
> > 
> > Well, I can confirm for one thing that if it detects as 100mbit and your
> > network is only 10, it won't work at all :) So if you're suffering packet
> > loss or slow connectivity, this is not the problem. Full/Half duplex I
> > have not really encountered, and certainly that information doesn't appear
> > to define whether you're on duplex or not, but I suspect that unless
> > you're not recieving/transmitting anything at all then your auto detection
> > has worked fine.
> > 
> > At least in my experience, I am by no means a definitive answer on such
> > issues, I fiddle until they work :)
> > 
> > Richard.
> > 
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> > 
> 
> 
> --
> 


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