todo:
-IPv6
-clean up jumbo buffer allocation - NetBSD provides an opaque argument
to the free function, thus doesn't need the hack done here
-deal correctly with the mapping of the shared memory
rewrite of the driver for the DECchip 21x4x Ethernet chips, and a variety
of clones.
Currently, the driver supports the Winbond 89C840F (this works pretty
well), and the Lite-On PNIC (e.g. NetGear PCI boards), however Lite-On
support may be broken [I may simply have a busted test board].
Eventually, support for the Macronix and ASIX chips will filter into
this driver, and then, slowly, support for the genuine DEC chips,
and maybe even the DE-425 EISA model.
chip-dependant code this required the following changes:
- Instead of attaching the device in a generic way with some chip-dependant
routines, use a chip-dependant attach routine with some common code
factored out. The code is marginally bigger, but this allows the CMD64x
flag hack to go away.
- For chips that report per-channel 'irq triggered', test this before calling
wdcintr() for the native-pci irq case (compat intr can't be shared),
as wdcintr() has no good way to know if a irq was for it or not, and
ends up with irq loss. XXX for chips that don't have this feature irq sharing
will not work properly !
- add my copyrigth notice (could have been done some time ago I think :)
There are still some issues to be solved with the Promise controller and
ATAPI devices.
Many thanks to Paul Newhouse for shipping me 2 Ultra/33 boards for doing this
work.
* Don't allocate receive buffers until the interface is actually brought
up, and release all of them if the interface is taken down.
* Add a knob (defaults to off) which will copy an incoming packet to
a single header mbuf if it is small enough to fit in one, rather than
burning an entire cluster on it. Note that this change will be mostly
moot if/when sbcompress() it changed to handle compressing clusters.
augustss