Date: Sat, 5 Nov 2011 03:49:42 +0800 From: Archy Cho <archycho@gmail.com> To: freebsd-current@freebsd.org, rizzo@iet.unipi.it Subject: Fwd: Netmap for routers (em0 device) Message-ID: <CA%2BYO1LGsCRgDyc1ySivwn7Fw%2Bd%2BRkBhFB2xUjt0U=H1MHY20yg@mail.gmail.com> In-Reply-To: <CA%2BYO1LEV48aoeY=k3M_%2Byc8c9yR%2BnuuXvQKH-CsszPygPOAsUw@mail.gmail.com> References: <CA%2BYO1LE1995YDuy442jgEeX8ZV2bAf3zRBkVr=Rqw=8DgT=x5Q@mail.gmail.com> <89098B91-49DE-4316-81C6-12AAB1849B44@dudu.ro> <CA%2BYO1LEV48aoeY=k3M_%2Byc8c9yR%2BnuuXvQKH-CsszPygPOAsUw@mail.gmail.com>
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---------- Forwarded message ---------- From: Archy Cho <archycho@gmail.com> Date: 2011/11/5 Subject: Re: Netmap for routers (em0 device) To: Vlad Galu <dudu@dudu.ro> Do you know about time line for this ? Thanks. 2011/11/5 Vlad Galu <dudu@dudu.ro> > On Nov 4, 2011, at 4:06 PM, Archy Cho wrote: > > Hello > > > > I am very happy to see freebsd could have such network performance with > > netmap , > > since I am currently using freebsd as core routers instead of cisco. > > > > I tried to re-compile the freebsd 8.2 kernel to test , > > however , I could not complete the task ( both i386 and amd64 ), > > I could only success at 9.0-RC-1. > > > > Here is my task and error message, > > > > cp /usr/src/sys/i386/conf/GENERIC /usr/src/sys/i386/conf/Netmap-Router > > echo "device netmap" >> /usr/src/sys/i386/conf/Netmap-Router > > cd /tmp/netmap/sys/ > > cp -R * /usr/src/sys/ > > cd /usr/src/ > > patch -p < /tmp/netmap/head-netmap.diff > > echo "WITHOUT_MODULES = bge re igb" >> /etc/make.conf > > make buildkernel KERNCONF=Netmap-Router > > make installkernel KERNCONF=Netmap-Router > > > > -Werror ../../../dev/e1000/if_em.c -I../../../dev/e1000 > > ../../../dev/e1000/if_em.c: In function 'em_setup_receive_ring': > > ../../../dev/e1000/if_em.c:4012: error: 'j' undeclared (first use in this > > function) > > ../../../dev/e1000/if_em.c:4012: error: (Each undeclared identifier is > > reported only once > > ../../../dev/e1000/if_em.c:4012: error: for each function it appears in.) > > *** Error code 1 > > > > Stop in /usr/src/sys/i386/compile/Netmap-Router > > > > > > Any hint of error message ? > > > > It's fairly easy to remove the offending code, AFAIK there were a few > unused variable and signed vs unsigned comparisons. > > > More questions , > > I seldom facing DDOS , whatever using polling or not , > > 1Gbps link with 64bytes packet will cause CPU 100% , > > if a freebsd box compile with netmap , > > could it have performance boost of routed / ipfw / pf ? > > Not yet. In order to do that, ipfw or pf need to be ported to userspace. I > believe that was on Luigi's agenda, though. > > > -- > Good, fast & cheap: pick any two. > >
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