Re: Tulip driver in 2.0.24

Ion Badulescu (ionut@moisil.wal.rhno.columbia.edu)
Sun, 3 Nov 1996 12:06:52 -0500 (EST)

Hi,

On Sun, 3 Nov 1996, Linux support wrote:

> I was not able to get my smc8432 (DEC 21041 Tulip) card working with
> 2.0.24.
>
> After restoring tulip.c to the 2.0.23 version, it works fine again.
>
> I got the message "eth0: enabling BNC port" repeating after some seconds,
> but the interface does never come up.

I've got the same problem with a 21041-based card: stock 2.0.24 does not
work at all and instead cycles the port type; 2.0.23 works just fine as
does 2.0.24 with tulip.c from 2.0.23; finally, 2.1.7 (which includes
_almost_ the same changes to tulip.c as 2.0.24) again works fine.

Now, there is a catch here: the difference between tulip.c in 2.1.7 and
2.0.24 is a constant. 2.1.7 has the correct value (as Linus pointed out in
a previous message). This is the patch for 2.0.24 (apply it with -p1):

--- linux/drivers/net/tulip.c.orig Sun Nov 3 12:02:47 1996
+++ linux/drivers/net/tulip.c Fri Nov 1 06:58:44 1996
@@ -1145,7 +1145,7 @@
tp->tx_skbuff[entry] = 0;
/* Put the setup frame on the Tx list. */
tp->tx_ring[entry].length = 192 |
- (entry == TX_RING_SIZE-1 ? 0x0a000000 : 0x08000);
+ (entry == TX_RING_SIZE-1 ? 0x0a000000 : 0x08000000);
tp->tx_ring[entry].buffer1 = virt_to_bus((char *)tp->setup_frame);
tp->tx_ring[entry].buffer2 = 0;
tp->tx_ring[entry].status = TRING_OWN;

Ionut

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Ionut Badulescu - Columbia College '98	    E-mail:ib42@columbia.edu
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