CFT/CFR: NDIS(4) USB support

[Weongyo Jeong]

On Sun, Jul 27, 2008 at 11:00:09PM +0200, Paul B. Mahol wrote:
> On 7/24/08, Weongyo Jeong <weongyo.jeong at gmail.com> wrote:
> > Hello All,
> >
> > It looks that NDIS USB support works for some USB wireless drivers so
> > I'd like to call for tests to everyone who interested in NDIS for
> > FreeBSD.  I have 7 USB wireless adapters and with current NDIS USB
> > support 4 of 7 adapters are supported.  The detail is as follows:
> >
> > Working:
> >   U-Khan UW-2054i (Marvell Libertas chipset)
> >   Netgear WG111v2 (Intersil/Prism chipset) - supported by upgt(4)
> >   EFM-IPTIME G054U2 (Ralink RT2573) - supported by rum(4)
> >   ZCOM XM-142 (Intersil/Prism chipset, another revision)
> >
> > Not working:
> >   Unicorn WL-54G (ZyDAS zd1211b chipset) - supported by zyd(4)
> >     Attaching is working sucessfully and LED works fine but it's not
> >     UPed.
> >   Zyxel G-200v2 (ZyDAS zd1211 chipset) - supported by zyd(4)
> >     The sympotom is same with Unicorn WL-54G.
> >   SMCWUSBT-G-CA EZ 108Mbps (Atheros chipset)
> >     This NDIS driver uses some functions which aren't supported by
> >     current NDIS implementation.  So I can't test it now.
> >
> > The patch for HEAD can be found at:
> >
> > 	http://people.freebsd.org/~weongyo/patch_ndisusb_20080724.diff
> >
> > When you try to test this patch, you should make sure that ndiscvt(8)
> > is updated.  Some instructions like below could be helpful:
> >
> >   # cd /usr/src
> >   # patch -p0 < ~/patch_ndisusb_20080724.diff
> >   # cd usr.sbin/ndiscvt
> >   # make && make install
> >   # cd ~/
> >   # ndisgen ABC.inf ABC.sys
> >   # cd /usr/src/sys/modules/ndis
> >   # make
> >   # kldload ./ndis.ko
> >   # cd /usr/src/sys/modules/if_ndis
> >   # make
> >   # kldload ./if_ndis.ko
> >   # kldload ~/ABC_sys.ko
> >
> > It seems that the current status of NDIS USB support is beta status so
> > I'm not sure I've implemented all features yet that it needs more
> > debugging and stability.  I don't have all H/Ws for testing! :)
> > Please tell me if you were successful or you failed though it looks
> > it's not easy to debug NDIS .sys binary using disassembler.
> >
> > Any help and comments are welcome.  Thanks.
> 
> Great. What about making ndis module not depends on usb/pccard ie. not
> loading usb kernel module when ndis/if_ndis are being loaded?

It's a good point.  AFAIK it's inevitable currently and looks it's
related with the structure of if_ndis module.  I think we need some
#ifdef and Makefile flags to do this.  I'd try to apply it into HEAD.

regards,
Weongyo Jeong