Hi, For the meantime this feature is proposed as ‘experimental’ for OVS DPDK. Unless you are transmitting to a NIC, you don’t need to set the n_txq_desc. My testing has been only with a DPDK driver in the guest. Have you tried that option?
Thanks, Ciara From: liyang07 [mailto:liyan...@corp.netease.com] Sent: Wednesday, January 17, 2018 10:41 AM To: Loftus, Ciara <ciara.lof...@intel.com> Cc: dev@dpdk.org Subject: About : Enable optional dequeue zero copy for vHost User Hi Ciara, I am tesing the function of "vHost dequeue zero copy" for vm2vm on a host, and I have some problems: 1. The networking is OK before run iperf, I can ping successed from vm1 to vm2，but after run iperf, the networking between vm1 and vm2 is down;(I think n_txq_desc cause the problem) 2. I know the limitation about n_txq_desc, but I cannot set the n_txq_desc for dpdkport while the vms on the same host, because there is no dpdkports work fow my testing; Thus, how can I resolve it, thanks.
