cvs commit: src/sys/dev/nve if_nve.c

Kövesdán Gábor gabor.kovesdan at
Fri Apr 28 20:30:18 UTC 2006

John Baldwin wrote:
> jhb         2006-04-28 20:08:16 UTC
>   FreeBSD src repository
>   Modified files:
>     sys/dev/nve          if_nve.c 
>   Log:
>   The nvidia binary blob sometimes defers tx completion notification to the
>   OS dependent layer.  Thus, the watchdog timer can go off when the tx
>   engine is working fine but the OS dependent layer just hasn't been called
>   to cleanup finished tx transactions.  To workaround this, when the watchdog
>   fires, poke the binary blob to force it to flush any pending tx
>   completions.  If this drops the pending tx count to zero then just return
>   without logging a message or resetting the chip.
>   This reportedly fixes the 'device timeout()' errors with at least several
>   NF4 nve(4) parts.
>   Submitted by:   Nathan Alexander Whitehorn <nathanw at> (code)
>   Submitted by:   dg (inspiration for comment and explanation)
>   MFC after:      1 week
>   Revision  Changes    Path
>   1.21      +19 -1     src/sys/dev/nve/if_nve.c
It sounds nice, thanks!
Anyway, as far as I know, OpenBSD people have written a native 
reverse-engineered nForce ethernet controller driver. It would be nice 
if someone could port it to FreeBSD. I'm interested but unfortunately 
I'm only an average user, I don't have the necessary knowledge.

Gabor Kovesdan

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