Hi, I have some questions regarding the classifier API.
When creating cascading pmrs, cos parameter is specified - see odp_cos_pmr_cos A cos is basically (as stated in the classifier doc) a target for packets. One of the elements attached to the cos is the frame queue (or a group of frame queues). When linking a pmr by other pmr the odp_cos_pmr_cos function is used. In this case, packets that match let's say pmr1 will go to cos1 then to pmr2 and if there is a match they will go to cos2. (pmr1 -->cos1 -->pmr2->cos2) Why do we need the cos in this situation? Do we make an enqueue to cos1 then from this enqueue we go to pmr2?(I think that classification should be done directly without the scheduler intervention) Or the cos is seen just as a logical element to link pmr1 with pmr2? In this case what is the sense of the cos' frame queue if it is not used? Why not link the pmrs directly without any cos? If there is a cascading chain (consider the above one as a snippet in a longer chain) what happens if the packets arrive to pmr2 but there is no match with it.? They will be dropped? Regards, Radu
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