Hi Biju, > -----Original Message----- > From: Talukdar, Biju [mailto:Biju_Talukdar at student.uml.edu] > Sent: Wednesday, April 13, 2016 1:04 AM > To: Singh, Jasvinder <jasvinder.singh at intel.com>; users <users at dpdk.org> > Subject: Re: problem running ip pipeline application > > Hi Jasvinder, > Thanks a lot for your guidance. > > I could see the prints that the pipeline initialization is complete. I gave > prints > in the function pipeline_passthrough_init(). And I could see the prints. But I > get no prints from the function pkt_work(). This function process all the > packets. PKT_WORK macro uses pkt_work() function. Again PKT_WORK is > used by port_in_ah macro. I am showing the code snippets from > passthrough pipeline. > > #define port_in_ah(dma_size, hash_enabled) \ > PKT_WORK(dma_size, hash_enabled) \ > PKT4_WORK(dma_size, hash_enabled) \ > PIPELINE_PORT_IN_AH(port_in_ah_size##dma_size##_hash##hash_enable > d,\ > pkt_work_size##dma_size##_hash##hash_enabled, \ > pkt4_work_size##dma_size##_hash##hash_enabled) > > > Now, port_in_ah is called like as show below: > > port_in_ah(8, 0) > port_in_ah(8, 1) > port_in_ah(16, 0) > port_in_ah(16, 1) > port_in_ah(24, 0) > port_in_ah(24, 1) > port_in_ah(32, 0) > port_in_ah(32, 1) > port_in_ah(40, 0) > port_in_ah(40, 1) > port_in_ah(48, 0) > port_in_ah(48, 1) > port_in_ah(56, 0) > port_in_ah(56, 1) > port_in_ah(64, 0) > port_in_ah(64, 1) > > So eventually pkt_work() should get called by the above calls. But why I am > not getting any prints from pkt_work(). I have no clue why I am not getting > any test prints. Why the program execuion is not reaching up to those > printfs. > Do you think that I am not even getting any packets and thats why > pkt_work() is not get called at all. In that scenario, where I should look in? > Remember I am just trying the sample example application. There is no code > change there apart from my prints. Logically it should work. >
The routine pkt_work() is invoked to process one packet at a time and, in case, when continuous packets are sent, pkt4_work() comes into play which processes packets in bulk (4 packets at a time) for the performance reason. Therefore, try sending one packet to the pipeline and see if printf() (introduced in pkt_work()) works or insert printf() in pkt4_work() as well. Thanks, Jasvinder
