[dpdk-users] Unable to recognize master/representor on the multiple IB devices

[dpdk-users] Unable to recognize master/representor on the multiple IB devices

[Sankalpa Timilsina]

 Hi, I am getting a DPDK MLX5 probing issue.

   1. I have installed the mlx5/ofed driver
   2. I have loaded the kernel modules.

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: No available hugepages reported in hugepages-2048kB
EAL: Probing VFIO support...
EAL: Probe PCI driver: mlx5_pci (15b3:1013) device: 0000:5e:00.0 (socket 0)
mlx5_pci: unable to recognize master/representors on the multiple IB devices
common_mlx5: Failed to load driver = mlx5_pci.

EAL: Requested device 0000:5e:00.0 cannot be used
EAL: Bus (pci) probe failed.

As for the 'failing to load mlx5_pci' driver, I can see that the mlx5_core
driver is loaded.

dpdk-devbind.py -s

Network devices using kernel driver
===================================
0000:5e:00.0 'MT27700 Family [ConnectX-4]' if=enp94s0 drv=mlx5_core unused=

What does failing to recognize master/representors on multiple IB devices
mean?

My configuration is: CentOS 7.9, Linux Kernel 5.12, OFED 4.9 (LTS)

Re: [dpdk-users] Unable to recognize master/representor on the multiple IB devices

[Xueming(Steven) Li]

Hi Sankalpa,

Have you enabled SRIOV and switchdev mode correctly? Is there any error in demsg?
Here is the regular steps:
1. enable sriov - new VF ports shown in `ip link`
2. unbind VFs - new VF ports disappear
3. enable switchdev mode - new representor ports shown in `ip link`
4. bind VFs again or passthrough to VM

Best Regards,
Xueming

> -----Original Message-----
> From: users <users-bounces@dpdk.org> On Behalf Of Sankalpa Timilsina
> Sent: Sunday, May 23, 2021 2:43 AM
> To: users@dpdk.org
> Subject: [dpdk-users] Unable to recognize master/representor on the multiple IB devices
> 
>  Hi, I am getting a DPDK MLX5 probing issue.
> 
>    1. I have installed the mlx5/ofed driver
>    2. I have loaded the kernel modules.
> 
> EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
> EAL: Selected IOVA mode 'PA'
> EAL: No available hugepages reported in hugepages-2048kB
> EAL: Probing VFIO support...
> EAL: Probe PCI driver: mlx5_pci (15b3:1013) device: 0000:5e:00.0 (socket 0)
> mlx5_pci: unable to recognize master/representors on the multiple IB devices
> common_mlx5: Failed to load driver = mlx5_pci.
> 
> EAL: Requested device 0000:5e:00.0 cannot be used
> EAL: Bus (pci) probe failed.
> 
> As for the 'failing to load mlx5_pci' driver, I can see that the mlx5_core driver is loaded.
> 
> dpdk-devbind.py -s
> 
> Network devices using kernel driver
> ===================================
> 0000:5e:00.0 'MT27700 Family [ConnectX-4]' if=enp94s0 drv=mlx5_core unused=
> 
> What does failing to recognize master/representors on multiple IB devices mean?
> 
> My configuration is: CentOS 7.9, Linux Kernel 5.12, OFED 4.9 (LTS)

Re: [dpdk-users] Unable to recognize master/representor on the multiple IB devices

[Asaf Penso]

Hello Sankalpa,

Are you seeing this with testpmd? If so can you provide the command line?
If not, can you provide the EAL parameters and the devargs used?

Regards,
Asaf Penso

>-----Original Message-----
>From: users <users-bounces@dpdk.org> On Behalf Of Sankalpa Timilsina
>Sent: Saturday, May 22, 2021 8:58 PM
>To: users@dpdk.org
>Subject: [dpdk-users] Unable to recognize master/representor on the
>multiple IB devices
>
> Hi, I am getting a DPDK MLX5 probing issue.
>
>   1. I have installed the mlx5/ofed driver
>   2. I have loaded the kernel modules.
>
>EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
>EAL: Selected IOVA mode 'PA'
>EAL: No available hugepages reported in hugepages-2048kB
>EAL: Probing VFIO support...
>EAL: Probe PCI driver: mlx5_pci (15b3:1013) device: 0000:5e:00.0 (socket 0)
>mlx5_pci: unable to recognize master/representors on the multiple IB devices
>common_mlx5: Failed to load driver = mlx5_pci.
>
>EAL: Requested device 0000:5e:00.0 cannot be used
>EAL: Bus (pci) probe failed.
>
>As for the 'failing to load mlx5_pci' driver, I can see that the mlx5_core driver is
>loaded.
>
>dpdk-devbind.py -s
>
>Network devices using kernel driver
>===================================
>0000:5e:00.0 'MT27700 Family [ConnectX-4]' if=enp94s0 drv=mlx5_core
>unused=
>
>What does failing to recognize master/representors on multiple IB devices
>mean?
>
>My configuration is: CentOS 7.9, Linux Kernel 5.12, OFED 4.9 (LTS)

[dpdk-users] Unable to recognize master/representor on the multiple IB devices

[Sankalpa Timilsina]

 Hi, I am getting a DPDK MLX5 probing issue.

   1. I have installed the mlx5/ofed driver
   2. I have loaded the kernel modules.

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: No available hugepages reported in hugepages-2048kB
EAL: Probing VFIO support...
EAL: Probe PCI driver: mlx5_pci (15b3:1013) device: 0000:5e:00.0 (socket 0)
mlx5_pci: unable to recognize master/representors on the multiple IB devices
common_mlx5: Failed to load driver = mlx5_pci.

EAL: Requested device 0000:5e:00.0 cannot be used
EAL: Bus (pci) probe failed.

As for the 'failing to load mlx5_pci' driver, I can see that the mlx5_core
driver is loaded.

dpdk-devbind.py -s

Network devices using kernel driver
===================================
0000:5e:00.0 'MT27700 Family [ConnectX-4]' if=enp94s0 drv=mlx5_core unused=

What does failing to recognize master/representors on multiple IB devices
mean?

My configuration is: CentOS 7.9, Linux Kernel 5.12, OFED 4.9 (LTS)