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6678 packet accelerator with RX linked descriptors

SRiva
Intellectual 330 points

Hi all, I'm trying to configure the PA in order to receive from eth switch two linked descriptor: one host packet with 34 byte payload (header) and one linked host buffer with the payload (RX, not TX).

There's no example about RX "linked" receive.

Currently I have a working implementation (I'm receiving both descriptors from the gHiPriAccumList), but sometimes instead of 1 host packet + 1 host buffer I'm receiving 1 host packet + multiple host buffer, all with fixed 34 bytes length.

My question is: is it possible to force a receive chain with "fixed length" host packets? If yes, why sometimes I'm receiving multiple host buffer even if my configuration is fixed?

Thanks