Thank you Zhao.

I tri= ed it, but now mlx5 driver returned error.

mlx5_net: [mlx5dr_action_create_generic]: Cannot create HWS act= ion since HWS is not supported

It is what I saw in my original code before tryin= g on testpmd.

It seems to= be an issue from connectX-6 configuration.

Is there anyone ever tried to use asynchronous API with connect= X-6?

Setting dv_flow_en= =3D2 and dv_esw_en=3D1 seems not enough.

I explored the mlx5 code, and found that rte_flow_configure= () queries HCA capability by mlx5dr_cmd_query_caps().

In my case, rte_flow_configure() returned erro= r since caps->wqe_based_update is set by 0.

Is there anyone know how to set this value to non-zero?

I already wrote the same ques= tion on nvidia forum.

Sincerely,=

Junghan Yoon

<= p class=3DMsoNormal>

=EB=B3=B4=EB=82=B8 =EC=82=AC=EB=9E=8C: Bing Zhao<= br>=EB=B3=B4=EB=82=B8 =EB=82=A0=EC=A7=9C: 2023=EB=85=84 6= =EC=9B=94 9=EC=9D=BC =EA=B8=88=EC=9A=94=EC=9D=BC = =EC=98=A4=ED=9B=84 10:00
=EB=B0=9B=EB=8A=94= =EC=82=AC=EB=9E=8C: users@dpdk.org; cerotyki@gmail.com
=EC=A0=9C=EB=AA=A9: RE: About rte_flow asynchronous A= PI

Hi Junghan,

In test= pmd, you can easily do it by:

p= ort stop all

# or port stop 0

flow configure 0 =E2=80=A6=E2=80= =A6

# if there are other port(s)

# flow configure Y =E2=80=A6=E2=80=A6

<= span lang=3DEN-US style=3D'font-size:10.0pt;font-family:Consolas'>port star= t all

# or port start 0

= ;

With the source code= implementation, you can configure it before starting a device.

BR. Bing=

From: J= unghan Yoon <cerotyki@gmail.com>
Sent: Friday, June 9, = 2023 10:57:13 AM
To: users@dpdk.org <users@dpdk.org>
= Subject: About rte_flow asynchronous API

Hi.

I=E2=80=99m trying to use testpmd to tes= t rte_flow with asynchronous API in DPDK 22.11.

I turned on dv_esw_en=3D1 by echoing switchdev to /sys/class/net/<= /span>=E2=80=A6., and set dv_flow_en to 2 to use connect= X-6 HWS (hardware steering).

sudo build/app/dpdk-test= pmd -a 0000:8a:00.0,dv_flow_en=3D2 -a 0000:8a:00.1,dv_flow_en=3D2 -- -i --r= xq=3D1 --txq=3D1

<= /span>

In the prompt, I typed b= elow

flow configure 0 queues_number 1 queues_size 10 = counters_number 0 aging_counters_number 0 meters_number 0 flags 0

but it said =E2=80=9CDev= ice with port_id=3D0 already started.=E2=80=9D.

I know rte_flow_configure() call should be= in the middle of rte_eth_dev_configure() and rte_eth_dev_start().

So, I run testpmd by below to po= stpone device start,

sudo build/app/dpdk-testpmd -a 0= 000:8a:00.0,dv_flow_en=3D2 -a 0000:8a:00.1,dv_flow_en=3D2 -- -i --rxq=3D1 -= -txq=3D1 --disable-device-start

However,= now not only rte_eth_dev_start() but also rte_eth_dev_configure() does not= start, so it said =E2=80=9CDevice with port_id= =3D0 is not configured.=E2=80=9D.

= How can I run rte_flow_configure() between rte_eth_dev_c= onfigure() and rte_eth_dev_start() in testpmd?

Is there any parameter to postpone only rte_eth_dev_= start()?

Sincerely,

Junghan Yoon.