[eepro100] 82557 driver can drive 82559..?
Donald Becker
becker@scyld.com
Wed Sep 4 04:30:02 2002
On 2 Sep 2002, atul srivastava wrote:
> >firmware change in a later chip caused them to take an
> >unpredictable (or
> >just undocumented) amount of time.
> >
> > outl(0, ioaddr + SCBPointer);
> > inl(ioaddr + SCBPointer); /* Flush to PCI. */
> > udelay(10); /* Bogus, but it avoids the bug. */
...
> my query is that does above behaviour is indicated by
> 82559/82559er cards everwhere or it also depends on
> which board these cards are inserted in..?
I haven't traced the PCI transactions associated with these lines of
code.
It's very possible that the bug here depends on both the firmware (chip
revision) and the specific PCI bus implementation.
--
Donald Becker becker@scyld.com
Scyld Computing Corporation http://www.scyld.com
410 Severn Ave. Suite 210 Second Generation Beowulf Clusters
Annapolis MD 21403 410-990-9993