Hi, I have discovered today the netmap project[1] through an ACM Queue article[2].
Netmap is a new interface to send and receive packets through an Ethernet interface (NIC). It seems to provide a raw access to network interface in order to process packets at high rate with a low overhead. This is an another example of "kernel-bypass"/"zero-copy" which are core features of InfiniBand verbs/RDMA. But unlike InfiniBand verbs/RDMA, Netmap seems to have a very small API. Such API could be enough to build an unreliable datagram messaging system on "low cost" hardware (without concerns of determinism, flow control, etc.). I'm asking myself if the way netmap exposes internal NIC rings could be applicable for IB/IBoE HCA ? e.g. beyond 10GbE NIC, is netmap relevant ? Regards. [1] http://info.iet.unipi.it/~luigi/netmap/ netmap - a novel framework for fast packet I/O Luigi Rizzo Università di Pisa [2] http://queue.acm.org/detail.cfm?id=2103536 Revisiting Network I/O APIs: The netmap Framework Luigi Rizzo, 2012-01-17 -- Yann Droneaud -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
