Hi,

I'm doing a setup with Mellanox ConnectX-4 (MCX416A-CCA) NICs.

I'm using:

OS SLES 15 SP2
DPDK 19.11.4 (the official supported version for SLES 15 SP2)
MLNX_OFED_LINUX-5.5-1.0.3.2-sles15sp2-x86_64 (the latest one)
Mellanox adapters firmware 12.28.2006 (corresponding to this MLNX_OFED version)
kernel 5.3.18-24.34-default


This is my SRIOV configuration for DPDK capable PCI slots:

            {
                "resourceName": "mlnx_sriov_netdevice",
                "resourcePrefix": "mellanox.com",
                "isRdma": true,
                "selectors": {
                    "vendors": ["15b3"],
                    "devices": ["1014"],
                    "drivers": ["mlx5_core"],
                    "pciAddresses": ["0000:d8:00.2", "0000:d8:00.3", "0000:d8:00.4", "0000:d8:00.5"],
                    "isRdma": true
                }

The sriov device plugin starts without problems, the devices are correctly allocated:

{
  "cpu": "92",
  "ephemeral-storage": "419533922385",
  "hugepages-1Gi": "8Gi",
  "hugepages-2Mi": "4Gi",
  "intel.com/intel_sriov_dpdk": "0",
  "intel.com/sriov_cre": "3",
  "mellanox.com/mlnx_sriov_netdevice": "4",
  "mellanox.com/sriov_dp": "0",
  "memory": "183870336Ki",
  "pods": "110"
}

The Mellanox NICs are binded to the kernel driver mlx5_core:

pcgwpod009-c04:~ # dpdk-devbind --status

Network devices using kernel driver
===================================
0000:18:00.0 'Ethernet Controller 10G X550T 1563' if=em1 drv=ixgbe unused=vfio-pci
0000:18:00.1 'Ethernet Controller 10G X550T 1563' if=em2 drv=ixgbe unused=vfio-pci
0000:19:00.0 'Ethernet Controller 10G X550T 1563' if=em3 drv=ixgbe unused=vfio-pci
0000:19:00.1 'Ethernet Controller 10G X550T 1563' if=em4 drv=ixgbe unused=vfio-pci
0000:3b:00.0 'MT27700 Family [ConnectX-4] 1013' if=enp59s0f0 drv=mlx5_core unused=vfio-pci
0000:3b:00.1 'MT27700 Family [ConnectX-4] 1013' if=enp59s0f1 drv=mlx5_core unused=vfio-pci
0000:5e:00.0 '82599ES 10-Gigabit SFI/SFP+ Network Connection 10fb' if=p3p1 drv=ixgbe unused=vfio-pci
0000:5e:00.1 '82599ES 10-Gigabit SFI/SFP+ Network Connection 10fb' if=p3p2 drv=ixgbe unused=vfio-pci
0000:5e:10.0 '82599 Ethernet Controller Virtual Function 10ed' if= drv=ixgbevf unused=vfio-pci
0000:5e:10.2 '82599 Ethernet Controller Virtual Function 10ed' if=p3p1_1 drv=ixgbevf unused=vfio-pci
0000:5e:10.4 '82599 Ethernet Controller Virtual Function 10ed' if= drv=ixgbevf unused=vfio-pci
0000:5e:10.6 '82599 Ethernet Controller Virtual Function 10ed' if=p3p1_3 drv=ixgbevf unused=vfio-pci
0000:af:00.0 '82599ES 10-Gigabit SFI/SFP+ Network Connection 10fb' if=p4p1 drv=ixgbe unused=vfio-pci
0000:af:00.1 '82599ES 10-Gigabit SFI/SFP+ Network Connection 10fb' if=p4p2 drv=ixgbe unused=vfio-pci
0000:d8:00.0 'MT27700 Family [ConnectX-4] 1013' if=enp216s0f0 drv=mlx5_core unused=vfio-pci
0000:d8:00.1 'MT27700 Family [ConnectX-4] 1013' if=enp216s0f1 drv=mlx5_core unused=vfio-pci
0000:d8:00.2 'MT27700 Family [ConnectX-4 Virtual Function] 1014' if=enp216s0f2 drv=mlx5_core unused=vfio-pci
0000:d8:00.3 'MT27700 Family [ConnectX-4 Virtual Function] 1014' if=enp216s0f3 drv=mlx5_core unused=vfio-pci
0000:d8:00.4 'MT27700 Family [ConnectX-4 Virtual Function] 1014' if=enp216s0f4 drv=mlx5_core unused=vfio-pci
0000:d8:00.5 'MT27700 Family [ConnectX-4 Virtual Function] 1014' if=enp216s0f5 drv=mlx5_core unused=vfio-pci

The interfaces are up:

pcgwpod009-c04:~ # ibdev2netdev -v
0000:3b:00.0 mlx5_0 (MT4115 - MT1646K01301) CX416A - ConnectX-4 QSFP28 fw 12.28.2006 port 1 (ACTIVE) ==> enp59s0f0 (Up)
0000:3b:00.1 mlx5_1 (MT4115 - MT1646K01301) CX416A - ConnectX-4 QSFP28 fw 12.28.2006 port 1 (ACTIVE) ==> enp59s0f1 (Up)
0000:d8:00.0 mlx5_2 (MT4115 - MT1646K00538) CX416A - ConnectX-4 QSFP28 fw 12.28.2006 port 1 (ACTIVE) ==> enp216s0f0 (Up)
0000:d8:00.1 mlx5_3 (MT4115 - MT1646K00538) CX416A - ConnectX-4 QSFP28 fw 12.28.2006 port 1 (ACTIVE) ==> enp216s0f1 (Up)
0000:d8:00.2 mlx5_4 (MT4116 - NA)  fw 12.28.2006 port 1 (ACTIVE) ==> enp216s0f2 (Up)
0000:d8:00.3 mlx5_5 (MT4116 - NA)  fw 12.28.2006 port 1 (ACTIVE) ==> enp216s0f3 (Up)
0000:d8:00.4 mlx5_6 (MT4116 - NA)  fw 12.28.2006 port 1 (ACTIVE) ==> enp216s0f4 (Up)
0000:d8:00.5 mlx5_7 (MT4116 - NA)  fw 12.28.2006 port 1 (ACTIVE) ==> enp216s0f5 (Up)
pcgwpod009-c04:~ #


But when I run my application the Mellanox adapters are probed and I obtain the following error:

{"proc_id":"6"},"message":"[pio] EAL: Probe PCI driver: mlx5_pci (15b3:1014) device: 0000:d8:00.4 (socket 1)"}
{"version":"0.2.0","timestamp":"2022-01-14T09:51:39.826+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] net_mlx5: unable to recognize master/representors on the multiple IB devices"}
{"version":"0.2.0","timestamp":"2022-01-14T09:51:39.826+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] common_mlx5: Failed to load driver = net_mlx5."}
{"version":"0.2.0","timestamp":"2022-01-14T09:51:39.826+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: Requested device 0000:d8:00.4 cannot be used"}
{"version":"0.2.0","timestamp":"2022-01-14T09:51:39.826+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: Bus (pci) probe failed."}
{"version":"0.2.0","timestamp":"2022-01-14T09:51:39.890+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] USER1: ports init fail in DPDK, expect 1 ports, actual 0 ports."}
{"version":"0.2.0","timestamp":"2022-01-14T09:51:39.890+00:00","severity":"error","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pktio_libpio_init] No network ports could be enabled!"}

Could you please help me with this issue?


Thanks,

Rocío