Re: [dpdk-users] Compile DPDK 17.11 with Mellanox NIC support

[george.dit@gmail.com]

Hi Nelio,

Thanks for the prompt reply and guidance!
My OFED version was 4.1, that's why I was unable to build DPDK 17.11.
With OFED 4.2 everything works on my kernel (v4.4)!

I have one more question: What is the suggested OFED version in order to
have a fully featured NIC with all the DPDK classification/offloading
capabilities?
My NICs are 100G ConnectX-4 (dual and single port).

Best regards,
Georgios

On Fri, Jan 5, 2018 at 8:46 AM, Nelio Laranjeiro <nelio.laranjeiro@6wind.com
> wrote:

> Hi George
>
> On Fri, Jan 05, 2018 at 08:38:11AM +0100, george.dit@gmail.com wrote:
> > Hi,
> >
> > I noticed that DPDK 17.11 brought some changes regarding the Mellanox
> > drivers, hence my compilation script does not work for this version of
> DPDK.
> >
> > Specifically, the release notes of this version state:
> >
> > "Enabled the PMD to run on top of upstream Linux kernel and rdma-core
> libs,
> > removing the dependency on specific Mellanox OFED libraries."
> >
> > Previously, I was setting CONFIG_RTE_LIBRTE_MLX5_PMD but now, with this
> > option set I get build errors in drivers/net/mlx5/mlx5.c.
> >
> > Could you please provide some guidance on how DPDK is expected to work
> > without OFED?
> > Is there any other configuration required?
>
> You should find anything useful in the NIC documentation [1], you have
> two possibilities, keep using the distribution and install MLNX_OFED
> 4.2, or update the Linux Kernel and use RDMA-Core, both are explained in
> he section "21.5.1. Installation".
>
> Regards,
>
> [1] https://dpdk.org/doc/guides/nics/mlx5.html
>
> --
> Nélio Laranjeiro
> 6WIND
>



-- 
Georgios Katsikas
Industrial Ph.D. Student
Network Intelligence Group
Decision, Networks, and Analytics (DNA) Lab
RISE SICS
E-Mail:  georgios.katsikas@ri.se