Update:
The issue disappeared when moved to the 6.2.0-1018-azure kernel and newer rdma/ibverbs versions (28->39).

On Wed, Jan 24, 2024 at 3:33 AM Stephen Hemminger <stephen@networkplumber.org> wrote:
On Tue, 23 Jan 2024 21:06:22 +0200
Oleksandr Nahnybida <oleksandrn@interfacemasters.com> wrote:

> > >
> > > I also installed rdma-core/libibverbs1 (dpdk was compiled
> > > with  ibverbs_link=shared)

Try without ibverbs_link shared? Maybe

Mlx5 maintainers are:

M: Dariusz Sosnowski <dsosnowski@nvidia.com>
M: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
M: Ori Kam <orika@nvidia.com>
M: Suanming Mou <suanmingm@nvidia.com>
M: Matan Azrad <matan@nvidia.com>