eepro100 rev 12 problems

eepro100 rev 12 problems

[James Fidell]

I have two eepro100 interfaces in a machine, one rev 8, which works just
fine, and another rev 12, which appears as a device when the kernel boots
and can be configured with an IP address etc., but I can't get any data
in or out of it.  All the other hardware looks like it's working fine and
all my rev 8 cards work, so I'm led to ask, are there any known problems
with eepro100 rev 12 cards under 2.2.18?

James

Re: eepro100 rev 12 problems

[Ion Badulescu]

On Thu, 17 May 2001 16:59:04 +0100, James Fidell <james@cloud9.co.uk> wrote:
> I have two eepro100 interfaces in a machine, one rev 8, which works just
> fine, and another rev 12, which appears as a device when the kernel boots
> and can be configured with an IP address etc., but I can't get any data
> in or out of it.  All the other hardware looks like it's working fine and
> all my rev 8 cards work, so I'm led to ask, are there any known problems
> with eepro100 rev 12 cards under 2.2.18?

Is this a real card, or is it built-in on the motherboard?

I don't think eepro100 has got much testing with rev > 9, though it should
have worked. All eepro100 chips are supposed to be backwards compatible with
the 82557, but maybe our driver initializes some registers in a way that
upsets newer chips. Not having docs for the newer chips doesn't help, either...

Intel's own e100 driver probably works, their code does things differently if
rev >= 12 (what they call the D102 revision). Give it a spin, I guess.

Ion

-- 
  It is better to keep your mouth shut and be thought a fool,
            than to open it and remove all doubt.

Re: eepro100 rev 12 problems

[James Fidell]

Quoting Ion Badulescu (ionut@moisil.cs.columbia.edu):
> On Thu, 17 May 2001 16:59:04 +0100, James Fidell <james@cloud9.co.uk> wrote:
> > I have two eepro100 interfaces in a machine, one rev 8, which works just
> > fine, and another rev 12, which appears as a device when the kernel boots
> > and can be configured with an IP address etc., but I can't get any data
> > in or out of it.  All the other hardware looks like it's working fine and
> > all my rev 8 cards work, so I'm led to ask, are there any known problems
> > with eepro100 rev 12 cards under 2.2.18?
> 
> Is this a real card, or is it built-in on the motherboard?

It's a real card.

> I don't think eepro100 has got much testing with rev > 9, though it should
> have worked. All eepro100 chips are supposed to be backwards compatible with
> the 82557, but maybe our driver initializes some registers in a way that
> upsets newer chips. Not having docs for the newer chips doesn't help,
> either...
> 
> Intel's own e100 driver probably works, their code does things differently if
> rev >= 12 (what they call the D102 revision). Give it a spin, I guess.

For various reasons that are far to boring to go into here, I'm not entirely
free in my choice of card.  What I'll probably do is try to get a rev 8 card
swapped in for the rev 12 one.  If I can't get a rev 8 card for that machine,
I'll go with the e100 driver and let you know what happens.

James

Re: eepro100 rev 12 problems

[Ion Badulescu]

On Fri, 18 May 2001, James Fidell wrote:

> > Is this a real card, or is it built-in on the motherboard?
> 
> It's a real card.

All right, that's good to know. Maybe I'll get one for myself, so I can 
test new code on it -- right now I only have rev 9 and earlier cards.

> For various reasons that are far to boring to go into here, I'm not entirely
> free in my choice of card.  What I'll probably do is try to get a rev 8 card
> swapped in for the rev 12 one.  If I can't get a rev 8 card for that machine,
> I'll go with the e100 driver and let you know what happens.

Yes, and do let us know what happens. Whatever the problem is, it wants 
fixing sooner than later.

Thanks,
Ion

-- 
  It is better to keep your mouth shut and be thought a fool,
            than to open it and remove all doubt.