Re: [dpdk-users] Enable MLX5 driver v20.11

[Gerry Wan <gerryw@stanford.edu>]

OK, I was able to build it this way.
However, it seems that it still does not solve my problem where the
application detects no ports available. I am building it outside the
development kit using Make. It appears the same issue happens with the
provided sample applications. If I compile the "skeleton" sample
application with make, running it will error saying no ports available. If
I compile it using meson (meson configure -Dexamples=skeleton) and then run
it through ./<build_dir>/examples/dpdk-skeleton it works fine. How can I
compile the applications outside of the development kit? The current
documentation says this should still be possible using make as before.

On Sun, Dec 13, 2020 at 3:31 AM Raslan Darawsheh <rasland@nvidia.com> wrote:

> Starting OFED 5.1 it stopped the support for MLX4 pmd
>
> And seems that you have some libmlx4 under your local lib dir,
>
> In the meanwhile what you can do when doing ninja is to disable mxl4
> compilation:
>
>
>
> meson build -D disable_driver=net/mlx4; ninja -C build
>
>
>
> Kindest regards,
>
> Raslan Darawsheh
>
>
>
> *From:* Gerry Wan <gerryw@stanford.edu>
> *Sent:* Sunday, December 13, 2020 1:25 PM
> *To:* Raslan Darawsheh <rasland@nvidia.com>
> *Cc:* users@dpdk.org
> *Subject:* Re: [dpdk-users] Enable MLX5 driver v20.11
>
>
>
> Thanks,
>
> I updated my MLNX_OFED to 5.1-2.5.8.0, which was tested against for this
> DPDK release.
>
> To install, I ran ./mlnxofedinstall --dpdk --upstream-libs --with-mft
> --with-kernel-mft
>
> then /etc/init.d/openibd restart
> Now, ninja install gives me ../drivers/net/mlx4/mlx4_glue.h:16:10: fatal
> error: infiniband/mlx4dv.h: No such file or directory
>
>
>
> What other steps am I missing?
>
>
>
> On Sun, Dec 13, 2020 at 12:35 AM Raslan Darawsheh <rasland@nvidia.com>
> wrote:
>
> Hi Gerry,
>
> Starting V20.11 the build system was switched to use meson only,
> And if you have necessary packages for MLX5 (a.k. rdma-core) it will be
> built automatically.
>
> As for your question if you still don't need to bind mlx5 driver that's
> true, its still valid.
>
> Kindest regards,
> Raslan Darawsheh
>
> > -----Original Message-----
> > From: users <users-bounces@dpdk.org> On Behalf Of Gerry Wan
> > Sent: Sunday, December 13, 2020 1:22 AM
> > To: users@dpdk.org
> > Subject: [dpdk-users] Enable MLX5 driver v20.11
> >
> > Hello,
> > I am trying to update my DPDK version from 20.08 to 20.11. I am using the
> > mlx5 driver, and previously to enable it I had to set
> > CONFIG_RTE_LIBRTE_MLX5_PMD=y in config/common_base. In 20.11, I see
> > no
> > option to do so. I was able to build my application (and the sample
> > applications), but running rte_eth_dev_count_avail() returns 0 and cannot
> > find any ports.
> >
> > The steps I did to build DPDK from source were:
> >
> > $ meson build
> >
> > $ cd build
> >
> > $ sudo ninja install
> >
> > $ sudo ldconfig
> >
> >
> > Normally I would edit dpdk-20.xx/config/common_base before meson build,
> > but
> > that file is gone.
> >
> > What are the steps I need to take to enable mlx5 driver? I also recall
> that
> > I don't need to bind the mlx5 driver, is that still the case?
> >
> > Thanks
>
>