Hello everyone. I have a question regarding the "Programmable pipeline for new network flows" feature of ConnectX-6 SmartNIC. I want to know how this feature can be manipulated?

Infrastructure & Networking Adapters And Cables
#1

In the datasheet paper of CX6 SmartNIC, it says that, ConnectX-6 offers intelligent flexible pipeline capabilities, including a programmable flexible parser and match-action tables that enable hardware offloads for future protocols.

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At this end, I want utilize CX6 to implement my new idea about network protocols.

In the designed protocol, the packet header will be rewrited according to the already-sent packet information.

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So three questions are imposed for the implementation of the designed protocol:

i) the SmartNIC has to identify all the packets;

ii) the NIC has to store the already-sent statistics, e.g., counters may be needed;

iii) and rewrite the packet header.

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My question would be, how to implement the above-mentioned three questions on CX6 SmartNIC ?

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I’m looking forward to your answers!

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Sincerely, yours

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#2

Hi long,

Maybe you can refer to flex parser.

In latest DPDK, the ‘rte flow’ provide some functions for flex.

DPDK community provide more info about this.

https://doc.dpdk.org/guides/prog_guide/rte_flow.html#data-matching-item-types

Regards,

Levei