Re: nfe(4) vs. nve(4)

On mainbord 'MSI K9N Neo' the newest nfe(4) driver is the only one 
working stable for me (nForce MCP55 Networking Adapter with ciphy patch).

Thanks again,
Rainer


Pyun YongHyeon schrieb:
> Dear All,
> 
> As you know we have two drivers, nve(4) and nfe(4), in tree to serve
> nVidia network adapters. nve(4) was the first driver for nVidia
> network adapters and it relied on binary code(nvenetlib.o) from vendor
> to access the hardware. Using the binary code revealed several issues
> and David E. O'Brien imported FreeBSD nfe(4) which was ported by
> Shigeaki Tagashira from OpenBSD nfe(4).
> 
> The nfe(4) was very promising as it has full source code and supported
> lots of newer nVidia hardwares. With bus_dma(9) changes I could even
> get netperf performance report for the first time which was never
> possible on nve(4).(It always panicked my box while the test was in
> progress and it's still true on CURRENT).
> 
> Shigeaki Tagashira and I had been working on enhancing nfe(4) for
> several months. Now I think we'got stable working nfe(4) and it's time
> to supesede nve(4) with the overhauled nfe(4) before branching to 7.
> We fixed serveral bus_dma(9) bugs in the driver and added new hardware
> capabilities such as MSI/MSIX, hardware VLAN support and TSO.
> The only drawback of the overhauled nfe(4) I'm aware is lack of manual
> half-duplex media configuration. Autosensing the media works but some
> hardwares including mine does not work at all with manual half-duplex
> media configuration. Other than that it should work better than nve(4).
> 
> I had mailed several times to David E. O'Brien to get his comments but
> I still didn't receive a reply. I'd like to commit the overhauled
> nfe(4) and make the nfe(4) default drivers for 6-STABLE/7.
> If there is objection please let me know.
> 
> The overhauled nfe(4) can be found at the following URL.
> http://people.freebsd.org/~yongari/nfe/if_nfe.c
> http://people.freebsd.org/~yongari/nfe/if_nfereg.h
> http://people.freebsd.org/~yongari/nfe/if_nfevar.h
> 
> If you are brave enough to test Rx lock-free nfe(4), try:
> http://people.freebsd.org/~yongari/nfe/WIP/if_nfe.c
> http://people.freebsd.org/~yongari/nfe/WIP/if_nfereg.h
> http://people.freebsd.org/~yongari/nfe/WIP/if_nfevar.h
> 
> 
> Thanks.