5.4 bugs when driving ourselves via UNDI.

suspect that we need it, and implementing it would require needlessly
complicating the net device API.

Convert printf() to DBG(); printf() is not allowed in drivers.

handed a P_UNKNOWN packet.

Correct typo in pxenv_set_station_address().

via UNDI API and also by ifstat command; may be useful for debugging.

by PXE and NBI) and UNDI packets (as used by undinet and UNDI).

Use generic fields in struct device_description rather than assuming
that the struct device * is contained within a pci_device or
isapnp_device; this assumption is broken when using the undionly
driver.

Add PXENV_UNDI_SET_STATION_ADDRESS.

correct, but it's enough to get RIS working.

(i.e. LSB transmitted first on the wire), even though SPI commands and
addresses always have to be big-endian.

begin with.

pointer to it.

Implement PXENV_RESTART_TFTP.

DHCPD and Windows RIS in particular).

This reverts commit 03ca71c38d.

(0x7ef4) tends to really screw up anything that loads at 0x7c00...

portion, not to the bit we want to currently write to...