Date: Mon, 17 Feb 2014 20:36:06 +0200 From: wishmaster <artemrts@ukr.net> To: Luigi Rizzo <rizzo@iet.unipi.it> Cc: "freebsd-net@freebsd.org" <net@freebsd.org> Subject: Re: netmap, VALE and netmap pipes Message-ID: <1392661063.244494415.kh0fdlsv@frv34.fwdcdn.com> In-Reply-To: <CA%2BhQ2%2Bgbs9aBneUaDGAnKVoPHspzc=5o%2Bh%2Bf_K=T%2BCy8sRxr%2Bw@mail.gmail.com> References: <CA%2BhQ2%2Bgbs9aBneUaDGAnKVoPHspzc=5o%2Bh%2Bf_K=T%2BCy8sRxr%2Bw@mail.gmail.com>
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Thanks, prof. Luigi. As for me, netmap-ipfw is especially interesting. Would you like add some examples for userspace bundle of ipfw and dummynet. Because not all clear in README-file. E.g. I have classic router with 2 interfaces igb >From README-file s f f d [pkt-gen]-->--[valeA]-->--[kipfw]-->--[valeB]-->--[pkt-gen] The commands to run (in separate windows) are ### this is clear # preliminarly, load the netmap module sudo kldload netmap.ko ### what with vale? how i should connect real interfaces to vale switch? # connect the firewall to two vale switches ./kipfw valeA:f valeB:f & ### it's clear # configure ipfw/dummynet ipfw/ipfw show # or other ### with real packets flow i think this is no needed. My mistake? # start the sink pkt-gen -i valeB:d -f rx # start an infinite source pkt-gen -i valeA:s -f tx ### it's clear # plain again with the firewall and enjoy ipfw/ipfw show # or other I think one real small example will be useful for everybody. Thanks for this great tool. -- Cheers, w --- Original message --- From: "Luigi Rizzo" <rizzo@iet.unipi.it> Date: 17 February 2014, 12:17:33 > Hi, > we have recently made a few extensions to netmap/VALE and put various > pieces of code on public repositories, so i thought i'd share the > pointers. All the code below runs with equal features and performance > on FreeBSD and Linux, and we are trying to upstream it in the relevant > projects if possible (as an example, QEMU recently added a netmap backend), > at which point some of these clone repositories will become unnecessary. > > See http://info.iet.unipi.it/~luigi/netmap for more details. > > https://code.google.com/p/netmap/ > The latest netmap code for FreeBSD/Linux. It has native support > for certain NICs; emulated netmap over unmodified drivers; > enhanced parallelism in the VALE switch (20 Mpps/source, scaling > up to ~50Mpps); and a new feature called "netmap pipe" that > does zero-copy blocking I/O at over 100 Mpps. > Other features are the ability to allocate tons of extra > netmap buffers, and configurable sharing of memory among NICs, > VALE ports and netmap pipes. This increases the opportunity for > zero copy operation. > The user API is also greatly simplified, with a naming > scheme that permits easy access to all types of ports including > individual NIC queues. > > https://code.google.com/p/netmap-libpcap > a netmap-enabled version of libpcap. With this, basically any > pcap client can read/write traffic at 10+ Mpps, with zerocopy > reads and (soon) support for zerocopy writes. Whether applications > can cope with these packet rates, of course, is another story. > > https://code.google.com/p/netmap-click > a netmap-enabled version of the Click Modular Router. This > code matches the current version of netmap, supporting all > features (including netmap pipes). > > 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. > > cheers > luigi > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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