Can USDPAA be used to re-assemble a data stream?

[clemenseisserer]

Hi,

We are currently planning an application where we receive streaming data as UDP jumbo packets at a very high rate.

The UDP-payload contains a protocol specific header as well as the "real" payload, therefore a packet looks like: MAC:IP:UDP:CUSTOM_PROTOCOLL:payload

What we would like to achieve is to copy the payload without any headers into a continous ring-buffer, without manual CPU intervention (like memcpy).

Are the accelerators in the QorIQ series (LS2080A) capable of performing operations like the mentioned one?

Thank you in advance, Clemens

[yipingwang]

Hello Clemens Eisserer,

USDPAA supports reassembly, you could refer to the "reassembly_demo" USDPAA application. In fact, reassembly action is performed in FMAN, so the important task is to define FMC policy files.

The software architecture of LS2 product is different from Power Arch products, NADK is used to replace the orginal USDPAA in LS2 Linux SDK.

Have a great day,
Yiping

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