Hi Asaf,

Yes, it seems that DPDK version 20.08 code is built-in with the VNF I’m deploying, so it is always using this version, which apparently doesn’t have the patch that overrides this error.

I think the patch is the following:

https://patches.dpdk.org/project/dpdk/patch/20200603150602.4686-7-ophirmu@mellanox.com/

and the code part that solves the error is:

+ if (mlx5_class_get(pci_dev->device.devargs) != MLX5_CLASS_NET) {

+ DRV_LOG(DEBUG, "Skip probing - should be probed by other mlx5"

+ " driver.");

+ return 1;

+ }

Could you please confirm?

Thanks,

Rocío

From: Asaf Penso <asafp@nvidia.com>
Sent: Monday, January 31, 2022 12:49 PM
To: Rocio Dominguez <rocio.dominguez@ericsson.com>; NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas@monjalon.net>
Cc: users@dpdk.org; Matan Azrad <matan@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>; Raslan Darawsheh <rasland@nvidia.com>
Subject: RE: net_mlx5: unable to recognize master/representors on the multiple IB devices

I see two differences below.

First, in testpmd the version is 19.11.11, and in your application, it’s 20.08. See this print:

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.610+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] USER1: DPDK version: DPDK 20.08.0"}

Second, in your application, I see the VFIO driver is not started properly:

20T19:19:16.637+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: cannot open VFIO container, error 2 (No such file or directory)"}

Regards,

Asaf Penso

From: Rocio Dominguez <rocio.dominguez@ericsson.com>
Sent: Thursday, January 20, 2022 9:49 PM
To: Asaf Penso <asafp@nvidia.com>; NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas@monjalon.net>
Cc: users@dpdk.org; Matan Azrad <matan@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>; Raslan Darawsheh <rasland@nvidia.com>
Subject: RE: net_mlx5: unable to recognize master/representors on the multiple IB devices

Hi Asaf,

I have manually compile and install the DPDK 19.11.11.

Executing testpmd in the Mellanox NICs VFs where I want to run my app gives this result:

pcgwpod009-c04:~/dpdk-stable-19.11.11 # ./x86_64-native-linux-gcc/app/testpmd -l 8-15 -n 4 -w d8:00.2 -w d8:00.3 -w d8:00.4 -w d8:00.5 -- --rxq=2 --txq=2 -i

EAL: Detected 96 lcore(s)

EAL: Detected 2 NUMA nodes

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket

EAL: Selected IOVA mode 'VA'

EAL: 2048 hugepages of size 2097152 reserved, but no mounted hugetlbfs found for that size

EAL: Probing VFIO support...

EAL: VFIO support initialized

EAL: PCI device 0000:d8:00.2 on NUMA socket 1

EAL: probe driver: 15b3:1014 net_mlx5

EAL: PCI device 0000:d8:00.3 on NUMA socket 1

EAL: probe driver: 15b3:1014 net_mlx5

EAL: PCI device 0000:d8:00.4 on NUMA socket 1

EAL: probe driver: 15b3:1014 net_mlx5

EAL: PCI device 0000:d8:00.5 on NUMA socket 1

EAL: probe driver: 15b3:1014 net_mlx5

Interactive-mode selected

testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=203456, size=2176, socket=0

testpmd: preferred mempool ops selected: ring_mp_mc

testpmd: create a new mbuf pool <mbuf_pool_socket_1>: n=203456, size=2176, socket=1

testpmd: preferred mempool ops selected: ring_mp_mc

Configuring Port 0 (socket 1)

Port 0: 36:FE:F0:D2:90:27

Configuring Port 1 (socket 1)

Port 1: 72:AC:33:BF:0A:FA

Configuring Port 2 (socket 1)

Port 2: 1E:8D:81:60:43:E0

Configuring Port 3 (socket 1)

Port 3: C2:3C:EA:94:06:B4

Checking link statuses...

Done

testpmd>

But when I run my Data Plane app, the result is

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.609+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"7"},"message":"[pktio_linux_packet_mmap_setup] block_size: 67108864, frame_size: 4096, block_nr: 1, frame_nr: 16384, mem_size: 67108864"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.610+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"7"},"message":"[add_pio_pci_devices_from_env_to_config] pci device from PCIDEVICE_MELLANOX_COM_MLNX_SRIOV_NETDEVICE=0000:d8:00.5 found"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.610+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] USER1: DPDK version: DPDK 20.08.0"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.610+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] USER1: rte_eal_init() args: pio -m 1024 -n 4 --no-telemetry --file-prefix pio-0 --master-lcore=4 --lcores=4@(4) --pci-whitelist 0000:d8:00.5 --base-virtaddr=0x200000000 --iova-mode=va --legacy-mem --no-shconf "}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.618+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: Detected 96 lcore(s)"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.618+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: Detected 2 NUMA nodes"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.636+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: Selected IOVA mode 'VA'"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.637+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: 2048 hugepages of size 2097152 reserved, but no mounted hugetlbfs found for that size"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.637+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: Probing VFIO support..."}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:16.637+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: cannot open VFIO container, error 2 (No such file or directory)"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:17.567+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: Probe PCI driver: mlx5_pci (15b3:1014) device: 0000:d8:00.5 (socket 1)"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:17.569+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":"2022-01-20T19:19:17.569+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pio] EAL: Requested device 0000:d8:00.5 cannot be used"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:17.569+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":"2022-01-20T19:19:17.631+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":"2022-01-20T19:19:17.631+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!"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:17.631+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pktio_init_cpu] libpio packet module is NOT initialized"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:17.631+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pktio_init_cpu] pktsock packet module is NOT initialized"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:17.631+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pktio_init_cpu] linux packet module is initialized"}

{"version":"0.2.0","timestamp":"2022-01-20T19:19:17.631+00:00","severity":"info","service_id":"eric-pc-up-data-plane","metadata":{"proc_id":"6"},"message":"[pktio_init_cpu] tap packet module is NOT initialized"}

Any idea on what could be the problem?

Thanks,

Rocío

From: Asaf Penso <asafp@nvidia.com>
Sent: Thursday, January 20, 2022 8:17 AM
To: Rocio Dominguez <rocio.dominguez@ericsson.com>; NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas@monjalon.net>
Cc: users@dpdk.org; Matan Azrad <matan@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>; Raslan Darawsheh <rasland@nvidia.com>
Subject: Re: net_mlx5: unable to recognize master/representors on the multiple IB devices

Although inbox drivers come with a pre installed DPDK, you can manually download, compile, install, and work with whatever version you wish.

Let us know the results, and we'll continue from there.

Regards,

Asaf Penso

From: Rocio Dominguez <rocio.dominguez@ericsson.com>
Sent: Monday, January 17, 2022 10:20:58 PM
To: Asaf Penso <asafp@nvidia.com>; NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas@monjalon.net>
Cc: users@dpdk.org <users@dpdk.org>; Matan Azrad <matan@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>; Raslan Darawsheh <rasland@nvidia.com>
Subject: RE: net_mlx5: unable to recognize master/representors on the multiple IB devices

Hi Asaf,

Thanks for the prompt answer.

I have checked that the latest 19.11 LTS is 19.11.11, but in OpenSUSE repositories the corresponding RPM package for SLES 15 SP2 is not available, the latest one is DPDK 19.11.10.

I have installed it but the problem persists. It's probably solved in 19.11.11.

There is a RPM package in SLES 15 SP3 for DPDK 20.11.3, which is LTS also, not sure if it could be a problem to install it in SLES 15 SP2. I will try it anyway.

Also I will try to find other way to load the 19.11.11 in SLES 15 SP2 apart from using RPM or zipper, any suggestion is appreciated.

Thanks,

Rocío

-----Original Message-----
From: Asaf Penso <asafp@nvidia.com>
Sent: Sunday, January 16, 2022 4:31 PM
To: NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas@monjalon.net>; Rocio Dominguez <rocio.dominguez@ericsson.com>
Cc: users@dpdk.org; Matan Azrad <matan@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>; Raslan Darawsheh <rasland@nvidia.com>
Subject: RE: net_mlx5: unable to recognize master/representors on the multiple IB devices

Hello Rocio,
IIRC, there was a fix in a recent stable version.
Would you please try taking latest 19.11 LTS and tell whether you still see the issue?

Regards,
Asaf Penso

>-----Original Message-----
>From: Thomas Monjalon <thomas@monjalon.net>
>Sent: Sunday, January 16, 2022 3:24 PM
>To: Rocio Dominguez <rocio.dominguez@ericsson.com>
>Cc: users@dpdk.org; Matan Azrad <matan@nvidia.com>; Slava Ovsiienko
><viacheslavo@nvidia.com>; Raslan Darawsheh <rasland@nvidia.com>
>Subject: Re: net_mlx5: unable to recognize master/representors on the
>multiple IB devices
>
>+Cc mlx5 experts
>
>
>14/01/2022 11:10, Rocio Dominguez:
>> 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","sever
>> i
>> ty":"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","sever
>> i
>> ty":"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","sever
>> i
>> ty":"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","sever
>> i
>> ty":"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","sever
>> i
>> ty":"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","sever
>> i
>> ty":"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
>>
>
>
>
>