Re: [Etherboot-developers] secrets behind symbol, INCLUDE_LANCE ?

[Ken Y. <ke...@nl...>]

|Have been studying the lance driver for some time. Of course confusion
|reigns. The confusion stems from the conditional compilation symbol,
|INCLUDE_LANCE. Here is why. 

The confusion is because INCLUDE_LANCE is a bit of a misnomer. It really
means "this is a PCI lance card".

|Where the probe routine definition occurs, the entry point to lancepci_probe
|is defined within an ifdef INCLUDE_LANCE. But there is no alternative
|definition to serve in the case the symbol is undefined.

If the symbol is undefined, one of the others will be, INCLUDE_NE2100 or
INCLUDE_NI6510. I'm guessing since you probably have a PCI lance card,
you should continue to use INCLUDE_LANCE. To add an entry to the PCI
entries for lance, edit config.c and NIC. Also add an entry to
chip_table[] in lance.c.

|I don't mean to be picky here but I have to modify the driver to accommodate
|a second nic. Further to this end it is necessary for me to understand
|driver subtleties that seem to be eluding me.

If by second NIC you mean detecting two cards on the same machine rather
than adding a new type of card to the table, you are entering
unchartered territory. I don't think the current code will work for more
than one card without large modifications, there are too many
non-reentrancies in the code.