[dpdk-users] Running a second DPDK process that prints the NIC's link status/speed causes the first DPDK process to stop transmitting.
Antoine POLLENUS
a.pollenus at deltacast.tv
Fri Sep 7 12:38:32 CEST 2018
Francis
You should read these 2 resources on how DPDK multi process works:
https://doc.dpdk.org/guides/prog_guide/multi_proc_support.html
https://doc.dpdk.org/guides/sample_app_ug/multi_process.html
and most specifically this one :
https://doc.dpdk.org/guides/prog_guide/multi_proc_support.html#multi-process-limitations
The delivery of interrupts, such as Ethernet* device link status interrupts, do not work in secondary processes. All interrupts are triggered inside the primary process only. Any application needing interrupt notification in multiple processes should provide its own mechanism to transfer the interrupt information from the primary process to any secondary process that needs the information.
Regards
Antoine
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