Re: [dpdk-dev] Cannot use MLX5 groups : cannot create jump action.: Operation not supported

[Tom Barbette <barbette@kth.se>]

Solved. The error was due to that NIC not having UCTX_EN enabled in the 
firmware.

Maybe a less cryptic message/warning would be helpful though? DV was 
enabled so I did not thought the problem could be below. A warning when 
the user explicitly asks for dv_flow_en=1 but UCTX_EN is not enabled maybe?

Thanks,
Tom

Le 30/11/2019 à 12:19, Tom Barbette a écrit :
> Hi all,
> 
> I'm struggling to use the group feature with MLX5.
> 
> I'm using 19.08.2 for now (while 
> https://bugs.dpdk.org/show_bug.cgi?id=371 gets fixed).
> 
> I use the latest OFED (no inbox driver this time).
> 
> I have dv_flow_en=1, but I still get "cannot create jump action.: 
> Operation not supported". when I want to use the jump action or "cannot 
> create table: Cannot allocate memory" when trying to add a rule to table 
> 1, all of this with testpmd but my own app does not work better.
> 
> sudo ~/dpdk-skylake/x86_64-native-linuxapp-gcc/app/testpmd –l 0-3 -w 
> 0000:17:00.0,dv_flow_en=1 –n 6 -- -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 'VA'
> EAL: Probing VFIO support...
> EAL: PCI device 0000:17:00.0 on NUMA socket 0
> EAL:   probe driver: 15b3:1017 net_mlx5
> net_mlx5: can not get IB device "mlx5_0" ports number
> Interactive-mode selected
> testpmd: create a new mbuf pool <mbuf_pool_socket_1>: n=283456, 
> size=2176, socket=1
> testpmd: preferred mempool ops selected: ring_mp_mc
> testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=283456, 
> size=2176, socket=0
> testpmd: preferred mempool ops selected: ring_mp_mc
> 
> Warning! port-topology=paired and odd forward ports number, the last 
> port will pair with itself.
> 
> Configuring Port 0 (socket 0)
> Port 0: 50:6B:4B:43:8A:DA
> Checking link statuses...
> Done
> testpmd> flow create 0 group 1 ingress pattern eth / end actions queue 
> index 0 / end
> Caught error type 1 (cause unspecified): cannot create table: Cannot 
> allocate memory
> testpmd> flow validate 0 group 1 ingress pattern eth / end actions queue 
> index 0 / end
> Flow rule validated
> testpmd> flow create 0 group 0 ingress pattern eth / end actions jump 
> group 1 / end
> Caught error type 16 (specific action): cannot create jump action.: 
> Operation not supported
> testpmd>
> 
> Thanks,
> 
> Tom