Unable to run dpdk-dumpcap application

[Stephen Hemminger]

On Fri, 10 Jun 2022 10:52:31 +0000
Ariba Ehtesham <ariba at dreambigsemi.com> wrote:

> Hi All,
> Can anybody guide me I am unable to run dpdk-dumpcap application with dpdk-22.03  ,
> 
> I am performing following steps:
> 
> First:
> 
> $ sudo ./build/app/dpdk-testpmd -l 0-3 -n 4  -a 0000:04:00.1 --proc-type=primary -- -i --rxq=8 --txq=8
> 
> Second:
> 
> $  sudo ./build/app/dpdk-dumpcap  -i 1 -c 6 -w /tmp/capture.pcapng
> 
> 
> I am getting following error
> mlx5_net: Cannot attach mlx5 shared data
> mlx5_net: Unable to init PMD global data: No such file or directory
> mlx5_common: Failed to load driver mlx5_eth
> EAL: Requested device 0000:42:00.0 cannot be used
> mlx5_net: Cannot attach mlx5 shared data
> mlx5_net: Unable to init PMD global data: No such file or directory
> mlx5_common: Failed to load driver mlx5_eth
> EAL: Requested device 0000:42:00.1 cannot be used
> mlx5_net: Cannot attach mlx5 shared data
> mlx5_net: Unable to init PMD global data: No such file or directory
> mlx5_common: Failed to load driver mlx5_eth
> EAL: Requested device 0000:43:00.0 cannot be used
> mlx5_net: Cannot attach mlx5 shared data
> mlx5_net: Unable to init PMD global data: No such file or directory
> mlx5_common: Failed to load driver mlx5_eth
> EAL: Requested device 0000:43:00.1 cannot be used
> Capturing on '0000:04:00.1'
> Packets captured: 0 ^C
> Packets received/dropped on interface '0000:04:00.1': 0/0 (0.0)
> EAL: Error: Invalid memory
> 
> 
> Regards ,
> Ariba Ehtesham
> 

Looks like problem with secondary process support in mlx5 driver.
Does dpdk-procinfo work for you?