[syslinux] comboot+PXE stack

[H. Peter Anvin]

Pawel Oleksik wrote:
>   
> 3) however, GET CACHED INFO can be called without sending pointers:
> 
>   p->PacketType = 2;
>   p->BufferSize = p->Buffer.seg = p->Buffer.offs = 0;
> 
> then calling int 0x22 with inreg as above succeeds and p->Buffer (after
> conversion) points to memory area containing correct information.
> 

This is the common usage.  PXE stacks are very buggy, so it's possible 
that the buffer usage simply doesn't work on your card.

> So, I could stand with it, but  UPD OPEN does not work either

Don't call UDP OPEN; PXELINUX runs with the UDP stack already open!

	-hpa