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charset="koi8-r" Content-Transfer-Encoding: quoted-printable Thanks for the explanation! I understand your use case, and it cannot be supported with ConnectX-5. Regards, Asaf Penso From: Vladimir Yesin Sent: Tuesday, March 1, 2022 10:02 AM To: Asaf Penso Cc: users@dpdk.org Subject: Re: Feature request: MLX5 DPDK flow item type RAW support Hello Asaf, I am currently working on forwarding IQ samples from EttusResearch USRP n32= 0 SDR receiver to Nvidia GPU (via GPUDirect RDMA) with DPDK. We are using Connectx-5 NICs. USRP uses CHDR network protocol (https://files.ettus.com/manual_archive/rel= ease_003_009_000/html/page_rtp.html) over UDP for CONTROL and DATA plan= es. CHDR is very similar to eCPRI, supported via DPDK flex item. I am currently working on UHD driver (https://github.com/EttusResearch/uhd<= https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgithub.= com%2FEttusResearch%2Fuhd&data=3D04%7C01%7Casafp%40nvidia.com%7Cf1ac28854ff= a4ae872b008d9fb59bc44%7C43083d15727340c1b7db39efd9ccc17a%7C0%7C0%7C63781718= 5558439757%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJB= TiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=3D%2BCiDDWu6XTcbjQiTF3UsOPCWx75TQ7Q= XyEqj%2Bhtpz%2FY%3D&reserved=3D0>) modification of to split CONTROL and DAT= A plane CHDR flows to CPU and GPU respectively with DPDK flow API via disti= nct HW queues and mempools. CHDR header contains packet type field to separate these streams using RAW = or FLEX items... Currently, DPDK mlx5 PMD for Connectx-5 NICs does not implement flex and ra= w items. The absence of these functions does not allow us to solve our problem. =D3=C2, 26 =C6=C5=D7=D2. 2022 =C7. =D7 21:08, Asaf Penso >: Hello Vladimir, Would you please elaborate more on your use case? What exactly do you wish to match on? Currently, there is no plan to implement the RAW item. However, with Bluefield 2 DPU, we implemented the flex item, that can be us= eful for you. Regards, Asaf Penso ________________________________ From: Vladimir Yesin > Sent: Friday, February 25, 2022 4:28:57 PM To: users@dpdk.org > Subject: Feature request: MLX5 DPDK flow item type RAW support Current DPDK 21.11 flow API does not support RTE_FLOW_ITEM_TYPE_RAW for MLX= 5. I need support of RTE_FLOW_ITEM_TYPE_RAW in DPDK flow API to enqueue some i= ngress packets by content to GPU with support of GPUDirect RDMA and other t= o CPU via distinct HW queues (RTE_FLOW_ACTION_TYPE_QUEUE). For now RTE_FLOW_ITEM_TYPE_UDP and RTE_FLOW_ITEM_TYPE_IPV4 filtering and en= queueing with address and ports are supported. Are there any plans to support RTE_FLOW_ITEM_TYPE_RAW for MLX5? --_000_DM5PR1201MB255573773DF5A5A91B61A365CD039DM5PR1201MB2555_ Content-Type: text/html; charset="koi8-r" Content-Transfer-Encoding: quoted-printable

Thanks for the explanation!

I understand your use case, and it cannot be suppor= ted with ConnectX-5.

 

Regards,

Asaf Penso

 

From: Vladimir Yesin <v.yesin@gma= il.com>
Sent: Tuesday, March 1, 2022 10:02 AM
To: Asaf Penso <asafp@nvidia.com>
Cc: users@dpdk.org
Subject: Re: Feature request: MLX5 DPDK flow item type RAW support

 

Hello Asaf,

I am currently working on forwarding IQ samples from= EttusResearch USRP n320 SDR receiver to Nvidia GPU (via GPUDirect RDM= A) with DPDK.

We are using Connectx-5 NICs.

 

USRP uses CHDR network protocol (https://files.ettus.com/manual_archive/release_003_009_000/html/pag= e_rtp.html) over UDP for CONTROL and DATA planes. CHDR is very similar to eCPRI, suppo= rted via DPDK flex item.

I am currently working on UHD driver (https://github.com/EttusResearch= /uhd) modification of to split CONTROL and DATA plane CHDR flows to CPU and GPU respectively wit= h DPDK flow API via distinct HW queues and mempools. 

CHDR header contains packet type field to separate t= hese streams using RAW or FLEX items...

 

Currently, DPDK mlx5 PMD for Connectx-5 NICs does no= t implement flex and raw items.

The absence of these functions does not allow us to = solve our problem.

 

 

 

 

=D3=C2, 26 =C6=C5=D7=D2. 2022 =C7. =D7 21:08, Asaf P= enso <asafp@nvidia.com>:=

Hello Vladimir,

 

Would you please elaborate more on your use case?

What exactly do you wish to match on?

 

Currently, there is no plan to implement the RAW ite= m.

However, with Bluefield 2 DPU, we implemented the fl= ex item, that can be useful for you.

 

Regards,

Asaf Penso

From: Vladim= ir Yesin <v.yesin= @gmail.com>
Sent: Friday, February 25, 2022 4:28:57 PM
To: users@dpdk.o= rg <users@dpdk.o= rg>
Subject: Feature request: MLX5 DPDK flow item type RAW support

 

Current DP= DK 21.11 flow API does not support RTE_FLOW_ITEM_TYPE_RAW for MLX5.

I need support of RTE_FLOW_ITEM_TYP= E_RAW in DPDK flow API to enqueue some ingress packets by content to GPU wi= th support of GPUDirect RDMA and other to CPU via distinct HW queues (RTE_FLOW_ACTION_TYPE_QUEUE).

For now RTE_FLOW_ITEM_TYPE_UDP and = RTE_FLOW_ITEM_TYPE_IPV4 filtering and enqueueing with address and ports are= supported.

Are there any plans to support RTE_= FLOW_ITEM_TYPE_RAW for MLX5?

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