On 30 November 2016 at 21:24, Damjan Marion (damarion) <damar...@cisco.com> wrote:
> I was also thinking about building native driver for mlx using their > libraries and skip overhead of PMD, that might be interesting project… > That would be cool :-). We just did this for Snabb. Our driver is ~ 1500 lines of Lua and it runs completely stand alone i.e. replaces Linux mlx5 driver + OFED library + DPDK PMD. I see this as making our lives much simpler from a support and distribution perspective. The one driver works for all ConnectX-4 / ConnectX-4 Lx / ConnectX-5 NICs because Mellanox implement the device side in firmware and keep it uniform between cards (thanks!) If you decide to take this route I would be happy to answer any questions about our experience. Our code is here: https://github.com/snabbco/snabb/blob/mellanox/src/apps/mellanox/connectx4.lua and we have used 100% public reference materials for the development (citation in the source file.) Cheers, -Luke P.S. I am also happy to have a separate driver because I am not entirely convinced about some optimizations that Mellanox/DPDK are making in their software, see http://dpdk.org/ml/archives/dev/2016-September/046705.html.
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