Regards _Sugesh
From: Advith Nagappa [mailto:advith.naga...@gmail.com] Sent: Wednesday, October 19, 2016 1:02 AM To: Chandran, Sugesh <sugesh.chand...@intel.com> Cc: discuss@openvswitch.org Subject: Re: [ovs-discuss] OVS - Userspace packet processing Hello Sugesh, Thank you for the response. I am using userspace OVS without DPDK. I do plan to use DPDK at a future point, but currently am trying to understand the behavior of a pure userspace ovs switch. I have put in custom DBG messages in /lib/dpif_netdev. (specifically dp_netdev_process_rxq_port) but this dbg message doesn't get triggered when I ping between two hosts connected by a OVS capable switch. I do see that in this case, the netdev_linux.c module is called, but I don't know who is calling this module (i.e the entry point to the ovs code base) [Sugesh]It looks to me you are using kernel interfaces in your setup, which is not ‘pure’ userspace openvswitch. Can you share the setup details? What type of interface you used to connect hosts to OVS? Any input is appreciated. Best Regards Advith On Tue, Oct 18, 2016 at 10:37 AM, Chandran, Sugesh <sugesh.chand...@intel.com<mailto:sugesh.chand...@intel.com>> wrote: Regards _Sugesh From: discuss [mailto:discuss-boun...@openvswitch.org<mailto:discuss-boun...@openvswitch.org>] On Behalf Of Advith Nagappa Sent: Sunday, October 16, 2016 1:33 AM To: discuss@openvswitch.org<mailto:discuss@openvswitch.org> Subject: [ovs-discuss] OVS - Userspace packet processing Hello, I am running OVS in userspace (rmmod openvswitch.ko). I wanted to the entry point for a packet within the OVS code base. I.e which module first 'sees' the packet in pure userspace OVS. [Sugesh] [Sugesh] Look at the INSTALL.DPDK.md<http://INSTALL.DPDK.md> and INSTALL.DPDK-advanced.md<http://INSTALL.DPDK-advanced.md> for the set up guide. You can start looking at the lib/dpif-netdev.c. mainly the functions such as dp_netdev_process_rxq_port, dp_netdev_input etc. Best Regards Advith
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