Dear Bruce Richardson and DPDK experts. Thank you very much for your the best great efforts and precious answers. I will study and think about it. Thank you very much. Sincerely Yours, Ick-Sung Choi. -----Original Message----- From: "Bruce Richardson"<bruce.richardson@intel.com> To: "최익성"<pnk003@naver.com>; Cc: <dev@dpdk.org>; Sent: 2015-09-30 (수) 21:03:44 Subject: Re: [dpdk-dev] Is there any example application to used DPDK packet distributor library? On Wed, Sep 30, 2015 at 08:41:04PM +0900, 최익성 wrote: > Dear Bruce Richardson and DPDK experts. > > Thank you very much for your precious answer. > > I found it. It seems very short and simple. > > Thank you very much. > > I have another question. > > I don't know how the following steps work from new_tag to match variables. > > /* in dpdk library. ~/dpdk-?.?.?/lib/librte_distributor/rte_distributor.c */ > /* process a set of packets to distribute them to workers */ > rte_distributor_process(struct rte_distributor *d, struct rte_mbuf **mbufs, unsigned num_mbufs) > { > ... > new_tag = next_mb->hash.usr; /* flow ID hash.usr is set by NIC */ > > for (i = 0; i < d->num_workers; i++) > match |= (!(d->in_flight_tags[i] ^ new_tag) << i); > > /* Only turned-on bits are considered as match */ > match &= d->in_flight_bitmask; > > unsigned worker = __builtin_ctzl(match); > ... > } > > I will appreciate if you let me know the steps. We build up a bitmask for each worker, where the bit is set of the new_tag matches the inflight tag for the worker. We then find the matching worker, if any using count-training-zeros (ctz) operation. /Bruce > > Thank you very much. > > Sincerely Yours, > > Ick-Sung Choi. > > > -----Original Message----- > From: "Bruce Richardson"<bruce.richardson@intel.com> > To: "최익성"<pnk003@naver.com>; > Cc: <dev@dpdk.org>; > Sent: 2015-09-30 (수) 19:56:28 > Subject: Re: [dpdk-dev] Is there any example application to used DPDK packet distributor library? > > On Wed, Sep 30, 2015 at 02:45:20PM +0900, 최익성 wrote: > > Dear DPDK experts. > > > > I am Ick-Sung Choi living in South Korea. > > > > I have a question about DPDK에 packet distributor library. > > > > Is there any example application to used DPDK packet distributor library? > > > > I am trying to experiment simple function using DPDK packet distributor library. > > > > If I can study an example application of DPDK packet distributor library, it would be very helpful for my experiment. > > > > I will appreciate if I can be given any example applications, advice, and information. > > > > Thank you very much. > > > > Sincerely Yours, > > > > Ick-Sung Choi. > > > Hi, > > there is a "distributor" example app in the examples directory. > > /Bruce > &vڣ8f&Nrtmxm5j] ryǢ_j)hoGH( ^rj)hoGH( ^r9^5Fvd_"13tOCׯvdNrݴם:^6M!Mz+um#>'[(v|~zivJ+gDm5mv׍M 0 Ģv