Hi, That seems to be the simplest way to view the traffic. I just tried it successfully on a ConnectX-5 card (Mellanox driver OFED-5.0 on a Centos 7.7 / Kernel 3.10.0). Thank you. Dimitris On Mon, Feb 3, 2020 at 11:53 PM Parav Pandit <parav@xxxxxxxxxxxx> wrote: > > > > > From: linux-rdma-owner@xxxxxxxxxxxxxxx <linux-rdma- > > owner@xxxxxxxxxxxxxxx> On Behalf Of Leon Romanovsky > > Sent: Tuesday, February 4, 2020 1:38 AM > > To: Dimitris Dimitropoulos <d.dimitropoulos@xxxxxxxxxxx> > > Cc: linux-rdma@xxxxxxxxxxxxxxx > > Subject: Re: RDMA header inspection > > > > On Mon, Feb 03, 2020 at 11:30:09AM -0800, Dimitris Dimitropoulos wrote: > > > Hi, > > > > > > I'm trying to inspect RDMA headers and they do not show up on > > > wireshark. How can I observe RDMA headers ? Also, any header parser > > > available in the code base that I can link to and use to process the > > > headers ? > > > > The libpcap which is compiled with RDMA support has ability to catch traffic for > > mlx4/mlx5 devices. > > https://github.com/the-tcpdump-group/libpcap/pull/585 > > > > If you want to consume this feature in simpler and quicker way, you can follow the steps [1] without affecting your OS userspace environment. > I find it useful and quick way to debug issues. > > But feel free ignore my suggestion and use your latest or compiled tcpdump with latest libpcap. > > [1] https://hub.docker.com/r/mellanox/tcpdump-rdma