Greetings, I am currently using dpdk version 17.11.2. I see that there are a few other revisions in 17.11.3, followed by the latest stable version of 18.02.2.
Based on the issues I have faced so far (see Original Message below), would you suggest that I go for another version? If yes, which one? In essence, my question is, would resorting to a different version of dpdk solve my current issue of virtqueue id being invalid? Any help is much appreciated. Thanks ----- Original Message ----- > From: "Bala Sankaran" <[email protected]> > To: [email protected] > Cc: "Aaron Conole" <[email protected]> > Sent: Thursday, June 28, 2018 3:18:13 PM > Subject: Traffic doesn't forward on virtual devices > > > Hello team, > > I am working on a project to do PVP tests on dpdk. As a first step, I would > like to get traffic flow between tap devices. I'm in process of setting up > the architecture, in which I've used testpmd to forward traffic between two > virtual devices(tap and vhost users) over a bridge. > > While I'm at it, I've identified that the internal dev_attached flag never > gets set to 1 from the rte_eth_vhost.c file. I've tried to manually set it > to 1 in the start routine, but I just see that the queue index being > referenced is out of range. > > I'm not sure how to proceed. Has anyone had luck using testpmd to > communicate with vhost-user devices? If yes, any hints on a workaround? > > Here's how I configured my setup after installing dpdk and openvswitch: > > 1. To start ovs-ctl: > /usr/local/share/openvswitch/scripts/ovs-ctl start > > 2. Setup hugepages: > echo '2048' > /proc/sys/vm/nr_hugepages > > 3. Add a new network namespace: > ip netns add ns1 > > 4. Add and set a bridge: > ovs-vsctl add-br dpdkbr0 -- set Bridge dpdkbr0 datapath_type=netdev > options:vhost-server-path=/usr/local/var/run/openvswitch/vhu0 > ovs-vsctl show > > 5. Add a vhost user to the bridge created: > ovs-vsctl add-port dpdkbr0 vhu0 -- set Interface vhu0 > type=dpdkvhostuserclient > > 6. Execute bash on the network namespace: > ip netns exec ns1 bash > > 7. Use testpmd and connect the namespaces: > testpmd --socket-mem=512 > --vdev='eth_vhost0,iface=/usr/local/var/run/openvswitch/vhu0,queues=1' > --vdev='net_tap0,iface=tap0' --file-prefix page0 -- -i > > > I repeated steps 3 - 7 for another network namespace on the same bridge. > Following this, in fresh terminals, I assigned IP addresses to the tap > devices created and tried pinging them. From port statistics, > I identified the above mentioned issue with the dev_attached and queue > statistics. > > I would greatly appreciate any help from your end. > > Thanks. > > ------------------------------------------------- > Bala Sankaran > Networking Services Intern > Red Hat Inc ., > ------------------------------------------------- Bala Sankaran Networking Services Intern
