[dpdk-users] DPDK 20.11 MLX5 testpmd tx_pp 'WQE index ignore feature is required for packet pacing'

[Asaf Penso]

Hello Alessandro,

As you can see from the documentation - http://doc.dpdk.org/guides/nics/mlx5.html#supported-hardware-offloads
The feature is supported starting ConnectX-6 Dx, and it's not supported for ConnectX-4Lx as you tried.

Regards,
Asaf Penso

>-----Original Message-----
>From: users <users-bounces at dpdk.org> On Behalf Of Alessandro Pagani
>Sent: Wednesday, December 9, 2020 6:03 PM
>To: users at dpdk.org
>Subject: [dpdk-users] DPDK 20.11 MLX5 testpmd tx_pp 'WQE index ignore
>feature is required for packet pacing'
>
>Hi all,
>
>I am trying to run dpdk testpmd with Mellanox ConnectX4 Lx (mlx5 driver).
>
>I am specifying the tx_pp parameter to provide the packet send scheduling on
>mbuf timestamps, but the testpmd fails with the following error:
>
># ./dpdk-testpmd -l 8-15 -n 4 -a 3b:00.0,tx_pp=500 -- --flow-isolate-all -i
>EAL: Detected 36 lcore(s)
>EAL: Detected 2 NUMA nodes
>EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
>EAL: Selected IOVA mode 'PA'
>EAL: No available hugepages reported in hugepages-1048576kB
>EAL: Probing VFIO support...
>EAL: VFIO support initialized
>EAL: Probe PCI driver: mlx5_pci (15b3:1015) device: 0000:3b:00.0 (socket 0)
>mlx5_pci: No available register for Sampler.
>mlx5_pci: WQE index ignore feature is required for packet pacing
>mlx5_pci: probe of PCI device 0000:3b:00.0 aborted after encountering an
>error: No such device
>common_mlx5: Failed to load driver = mlx5_pci.
>
>EAL: Requested device 0000:3b:00.0 cannot be used
>EAL: Bus (pci) probe failed.
>EAL: No legacy callbacks, legacy socket not created
>testpmd: No probed ethernet devices
>
>
>
>The error messages suggest that "WQE index ignore feature is required for
>packet pacing".
>
>Anyone knows the reason of this error and how to solve it?
>I know that WQE is related to RDMA (InfiniBand/RoCE) but I do not
>understand how it is related to DPDK.
>
>Thank you.
>
>Best regards
>Alessandro