[dpdk-users] DPDK MLX5 Probe error

["Mora Gamboa, Luis Eduardo" <luis-eduardo.mora-gamboa@hpe.com>]

Hi everyone,

This is my first question I send to the DPDK users mail pool. I'm experiencing the following scenario:

I'm not able to use the mlx5 pmd driver with some Mellanox NICs I have installed on my server. The error I'm receiving during EAL initialization is:

et_mlx5: no Verbs device matches PCI device 0000:03:00.0, are kernel drivers loaded?

The DPDK version I'm currently using is: DPDK-STABLE-18.11

I have installed the OFED latest version:

mlnx-en-4.5-1.0.1.0-ubuntu16.04-x86_64

I have performed modprobe of the ib_uverbs kernel module

Here's the kernel version I'm using

moragalu@server:~$ uname -r
4.4.0-143-generic

Here are the NIC models:

moragalu@server:~$ lspci | grep Mell
03:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
03:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
06:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
06:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]

The firmware version that the NICs are using:

moragalu@eridium03:~$ ethtool -i eridium25-03
driver: mlx5_core
version: 4.5-1.0.1
firmware-version: 14.24.1000 (MT_2420110034)
expansion-rom-version:
bus-info: 0000:06:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: yes

The complete output is of the eal initialization is:

EAL: Detected 16 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: No free hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: PCI device 0000:03:00.0 on NUMA socket 0
EAL:   probe driver: 15b3:1015 net_mlx5
net_mlx5: no Verbs device matches PCI device 0000:03:00.0, are kernel drivers loaded?
EAL: Requested device 0000:03:00.0 cannot be used
EAL: PCI device 0000:03:00.1 on NUMA socket 0
EAL:   probe driver: 15b3:1015 net_mlx5
net_mlx5: no Verbs device matches PCI device 0000:03:00.1, are kernel drivers loaded?
EAL: Requested device 0000:03:00.1 cannot be used
EAL: PCI device 0000:06:00.0 on NUMA socket 0
EAL:   probe driver: 15b3:1015 net_mlx5
net_mlx5: no Verbs device matches PCI device 0000:06:00.0, are kernel drivers loaded?
EAL: Requested device 0000:06:00.0 cannot be used
EAL: PCI device 0000:06:00.1 on NUMA socket 0
EAL:   probe driver: 15b3:1015 net_mlx5
net_mlx5: no Verbs device matches PCI device 0000:06:00.1, are kernel drivers loaded?
EAL: Requested device 0000:06:00.1 cannot be used
EAL: PCI device 0000:03:00.1 on NUMA socket 0
EAL:   probe driver: 15b3:1015 net_mlx5
net_mlx5: no Verbs device matches PCI device 0000:03:00.1, are kernel drivers loaded?
EAL: Driver cannot attach the device (03:00.1)
EAL: Failed to attach device on primary process

Current modules loaded in the kernel:

moragalu@eridium03:~$ lsmod | grep ib
mlx5_ib                16384  0
mlx_compat             24576  4 mlx4_en,mlx5_ib,mlx4_core,mlx5_core
ib_uverbs              61440  0
ib_iser                49152  0
rdma_cm                49152  1 ib_iser
ib_cm                  49152  1 rdma_cm
ib_sa                  36864  2 rdma_cm,ib_cm
ib_mad                 49152  2 ib_cm,ib_sa
ib_core               106496  7 rdma_cm,ib_cm,ib_sa,iw_cm,ib_mad,ib_iser,ib_uverbs
ib_addr                20480  2 rdma_cm,ib_core

Hope you can help me out beacause I'm really lost here :) Thank you in advance.

Regards,
Eduardo Mora Gamboa