netmap, VALE and netmap pipes

[Luigi Rizzo]

On Wed, Feb 19, 2014 at 10:14:18PM +0100, Olivier Cochard-Labb? wrote:
> On Mon, Feb 17, 2014 at 11:11 AM, Luigi Rizzo <rizzo at iet.unipi.it> wrote:
> 
> >
> >
> > https://code.google.com/p/netmap-ipfw
> >     a netmap-enabled, userspace version of the ipfw firewall and
> >     dummynet network emulator. This version reaches 7-10 Mpps for
> >     filtering and over 2.5 Mpps for emulation.
> >
> >
> > Hope you'll find it useful.
> >
> 
> Hi,
> 
> I didn't reach to compile netmap-ipfw under FreeBSD (10-stable r261209 and
> 11.0-CURRENT r262140):
> 
> fetch
> http://netmap.googlecode.com/archive/7f66866e7b735497cc0f0b81cfca94e32e81a182.zip
>  fetch
> http://netmap-ipfw.googlecode.com/archive/1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip
> unzip 7f66866e7b735497cc0f0b81cfca94e32e81a182.zip
> unzip 1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip
> cd netmap-ipfw-1430cbad0d12/
> gmake NETMAP_INC=../netmap-7f66866e7b73/sys
> 
> Building userspace ...
> gmake[1]: Entering directory `/root/netmap-ipfw-1430cbad0d12/ipfw'
> (cd ../objs; gmake -f ../Makefile.kipfw include_e)
> gmake[2]: Entering directory `/root/netmap-ipfw-1430cbad0d12/objs'
> Building /root/netmap-ipfw-1430cbad0d12/objs/../objs/include_e ...
> gmake[2]: Leaving directory `/root/netmap-ipfw-1430cbad0d12/objs'
>    CC ipfw2.c
>    CC dummynet.c
>    CC main.c
>    CC ipv6.c
>    CC altq.c
>    CC ../extra/glue.c
> ../extra/glue.c:181:36: error: comparison of unsigned expression < 0 is
> always false [-Werror,-Wtautological-compare]
>         if((oldlenp != NULL) && (*oldlenp < 0))

oh, clang... just remove the check for the time being,
i will fix it upstream in the meantime

thanks
luigi