> From: Lokesh Chakka <lvenkatakumarcha...@gmail.com> > Sent: Wednesday, October 9, 2024 1:15 PM > To: Stephen Hemminger <step...@networkplumber.org> > Cc: Pathak, Pravin <pravin.pat...@intel.com>; Bing Zhao <bi...@nvidia.com>; > users <users@dpdk.org> > Subject: Re: unable to capture packets > > hi,
Hi Chakka, Please don't "top post" on mailing lists; a reply "inline" with context is a lot easier to follow for all current (and future!) readers. > did certain modifications as per your suggestions. still the same problem. > not able to capture any packets....!!! Have you tried to run the DPDK example applications? Specifically, the skeleton/basicfwd.c has a "known good" setup routine, and forwards packets on a single core. Perhaps it is a good place to compare your setup code to, as it its known working. > I replaced 4096 with 512. rte_pktmbuf_pool_create is giving an error. for the > time being i've left it as 4K only. > I feel it should not be a problem. There is a problem somewhere - and currently in your code it is not root caused. This is a time to re-check code that "seemed ok" before, because somewhere something is not behaving as you expect. > PFA for the revised code. Attaching code to mailing lists is not an easy/good way to review; perhaps create a git repo and push the code there? Then provide a link, and future patches could easily show what improvements/fixes occur. (If you email another version of the "pmd.c" file, readers cannot know what changes were made -> leads to lots of duplication of review effort) > Output is as follows : > > ============================================================================================== > EAL: Detected CPU lcores: 40 > EAL: Detected NUMA nodes: 1 > EAL: Detected shared linkage of DPDK > EAL: Multi-process socket /var/run/dpdk/rte/mp_socket > EAL: Selected IOVA mode 'VA' > EAL: VFIO support initialized > EAL: Using IOMMU type 1 (Type 1) > ice_dev_init(): Failed to read device serial number > > ice_load_pkg_type(): Active package is: 1.3.39.0, ICE OS Default Package > (double VLAN mode) > main 53 port id: 0 num_of_pkts_per_queue: 4096 > ice_set_rx_function(): Using AVX2 Vector Rx (port 0). > Received Interrupt Signal SIGINT (2). Exiting... > main 98 time : 4 total pkts rcvd: 0 bandwidth: 0 > ============================================================================================== <snip> previous conversation, as top-posted answers, and discussion was hard to follow. It seems "num_of_pkts_per_queue" is used everywhere (mempool size, mbuf batch array size, rx_burst size, etc) This is almost certainly impacting things somehow. Review skeleton/basicfwd.c for better sizes/values. Hope that helps! Regards, -Harry
