Unable to create VFs

1. Please make sure that SR-IOV is enabled in BIOS.

2. Verify SRIOV_EN is true and NUM_OF_VFS bigger than 1. Run:

   # mlxconfig -d /dev/mst/mt41686_pciconf0 -e q |grep -i "SRIOV_EN\|num_of_vf"
   Configurations:           Default         Current         Next Boot
   *        NUM_OF_VFS       16              16              16
   *        SRIOV_EN         True(1)         True(1)         True(1)

No traffic between VF to external host

1. Please verify creation of representors for VFs inside the Bluefield DPU. Run: 

   # /opt/mellanox/iproute2/sbin/rdma link |grep -i up
   ...
   link mlx5_0/2 state ACTIVE physical_state LINK_UP netdev pf0vf0 
   ...

2. Make sure the representors of the VFs are added to the bridge. Run: 

   # ovs-vsctl add-port <bridage_name> pf0vf0

3. Verify VF configuration. Run: 

   $ ovs-vsctl show
   bb993992-7930-4dd2-bc14-73514854b024
       Bridge ovsbr1
           Port pf0vf0
               Interface pf0vf0
                   type: internal
           Port pf0hpf
               Interface pf0hpf
           Port pf0sf0
               Interface pf0sf0
           Port p0
               Interface p0
       Bridge ovsbr2
           Port ovsbr2
               Interface ovsbr2
                   type: internal
           Port pf1sf0
               Interface pf1sf0
           Port p1
               Interface p1
           Port pf1hpf
               Interface pf1hpf
       ovs_version: "2.14.1"