Hi, Ian. I prepared a fix for this problem here: http://openvswitch.org/pipermail/dev/2016-February/066066.html
Maybe it will be better than note in documentation. Best regards, Ilya Maximets. On 09.02.2016 17:40, Ian Stokes wrote: > Linux kernel network devices in a guest should have the number of > multi-purpose channels configured when used with DPDK multiqueue on the host. > This commit adds an example of how this can be done. Also add QEMU 2.5 > requirements for multiqueue with DPDK in NEWS. > > Signed-off-by: Ian Stokes <ian.sto...@intel.com> > --- > INSTALL.DPDK.md | 17 +++++++++++++++++ > NEWS | 2 +- > 2 files changed, 18 insertions(+), 1 deletions(-) > > diff --git a/INSTALL.DPDK.md b/INSTALL.DPDK.md > index d892788..e9f9acc 100644 > --- a/INSTALL.DPDK.md > +++ b/INSTALL.DPDK.md > @@ -586,6 +586,23 @@ Follow the steps below to attach vhost-user port(s) to a > VM. > -device > virtio-net-pci,mac=00:00:00:00:00:02,netdev=mynet2,mq=on,vectors=$v > ``` > > + Also, the driver in the guest operating system must be configured to use > + the exact same number of queues. If the number of queues is less than $q, > + then packets that are enqueued to queues unused by guest will not be > + received. > + > + This can be done for the Linux kernel virtio-net driver with: > + > + ``` > + ethtool -L <DEV> combined <$q> > + ``` > + > + A note on the command above: > + > + `-L`: Changes the numbers of channels of the specified network device > + > + `combined`: Changes the number of multi-purpose channels. > + > DPDK vhost-cuse: > ---------------- > > diff --git a/NEWS b/NEWS > index 3e33871..2d1b8fb 100644 > --- a/NEWS > +++ b/NEWS > @@ -55,7 +55,7 @@ v2.5.0 - xx xxx xxxx > - DPDK: > * Requires DPDK 2.2 > * Added multiqueue support to vhost-user > - > + * Note: QEMU 2.5+ required for multiqueue support > > v2.4.0 - 20 Aug 2015 > --------------------- > _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
