* Re: [dpdk-dev] About : Enable optional dequeue zero copy for vHost User [not found] <D9CE3E0C-76CD-42E5-A716-D5F9D336BAD6@corp.netease.com> @ 2018-01-23 10:46 ` Loftus, Ciara 2018-01-23 11:49 ` Chen, Junjie J 0 siblings, 1 reply; 2+ messages in thread From: Loftus, Ciara @ 2018-01-23 10:46 UTC (permalink / raw) To: liyang07; +Cc: dev, dev 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:liyang07@corp.netease.com] Sent: Wednesday, January 17, 2018 10:41 AM To: Loftus, Ciara <ciara.loftus@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. ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [dpdk-dev] About : Enable optional dequeue zero copy for vHost User 2018-01-23 10:46 ` [dpdk-dev] About : Enable optional dequeue zero copy for vHost User Loftus, Ciara @ 2018-01-23 11:49 ` Chen, Junjie J 0 siblings, 0 replies; 2+ messages in thread From: Chen, Junjie J @ 2018-01-23 11:49 UTC (permalink / raw) To: Loftus, Ciara, liyang07; +Cc: dev, dev Hi Which version of dpdk you are using? I have some fixes for dequeue zero copy and now in 18.02-rc1, you can try 18.02-r1. Cheers JJ > -----Original Message----- > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Loftus, Ciara > Sent: Tuesday, January 23, 2018 6:46 PM > To: liyang07 <liyang07@corp.netease.com> > Cc: dev@dpdk.org; dev@openvswitch.org > Subject: Re: [dpdk-dev] About : Enable optional dequeue zero copy for vHost > User > > 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:liyang07@corp.netease.com] > Sent: Wednesday, January 17, 2018 10:41 AM > To: Loftus, Ciara <ciara.loftus@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. > > > ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2018-01-23 11:49 UTC | newest] Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <D9CE3E0C-76CD-42E5-A716-D5F9D336BAD6@corp.netease.com> 2018-01-23 10:46 ` [dpdk-dev] About : Enable optional dequeue zero copy for vHost User Loftus, Ciara 2018-01-23 11:49 ` Chen, Junjie J
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