[realtek] Flow control question
Tue Oct 1 15:12:06 2002
On Sat, 28 Sep 2002, Kelvin Proctor wrote:
> > With this approach you will have to add it to an init script.
> Should I hook this into the init scripts before the interface is brought up
> or not? Otherwise I was just planning to throw it in rc.local.
Either place is fine.
> > It's changing the advertised capabilities that the transceiver sends.
> > The rtl8139 allows direct access to the transceiver management as
> > normal registers, that's why I was able to read the settings.
> I've just download the 8139B data sheet. I assume the above should be
> setting the "Auto-negotiation Advertisement Register" at 0066h-0067h. (I've
> now found out what the `magic` numbers are :)
Use 'mii-diag' to see the settings. I was just interpreting them from
the NIC register dump.
> I'm a little confused with a few of the offsets I'm seeing in the register
> dump etc...
> >From the mii-diag output it is stating that the link partner advertised
> 4441. From the above register dump this appears to be at offset
> 0x06A-0x06B. This is different from the datasheet that indicates this
> should be at 0x068-0x069.
These are 16 bit values, while the diagnostic reports register in 32 bit
units. Think little endian...
Donald Becker firstname.lastname@example.org
Scyld Computing Corporation http://www.scyld.com
410 Severn Ave. Suite 210 Second Generation Beowulf Clusters
Annapolis MD 21403 410-990-9993