On Fri, 2017-04-28 at 13:23 +0900, TETSURO NAKAMURA wrote: > Hi Nova team, > > I'm writing this e-mail because I'd like to have a discussion about > DPDK support at OpenStack Summit in Boston. > > We have developed a dpdk-based patch panel named SPP[1], and we'd > like to start working on Openstack (ML2 driver) to develop > "networking-spp". > > Especially, we'd like to use DPDK-ivshmem that was used to be used > to create "dpdkr" interface in ovs-dpdk[2].
To the best of my knowledge, IVSHMEM ports are no longer supported in upstream. The documentation for this feature was recently removed from OVS [1] stating: - The ivshmem library has been removed in DPDK since DPDK 16.11. - The instructions/scheme provided will not work with current supported and future DPDK versions. - The linked patch needed to enable support in QEMU has never been upstreamed and does not apply to the last 4 QEMU releases. - Userspace vhost has become the defacto OVS-DPDK path to the guest. Note: I worked on DPDK vSwitch [2] way back when, and there were severe security implications with sharing a chunk of host memory between multiple guests (which is how IVSHMEM works). I'm not at all surprised the feature was killed. > We have issued a blueprint[3] for that use case. Per above, I don't think this is necessary. vhost-user ports already work as expected in nova. > As we are attending Boston Summit, could you have a discussion with > us at the Summit? I'll be around the summit (IRC: sfinucan) if you want to chat more. However, I'd suggest reaching out to Sean Mooney or Igor Duarte Cardoso (both CCd) if you want further information about general support of OVS-DPDK in OpenStack and DPDK acceleration in SFC, respectively. I'd also suggest looking at networking-ovs-dpdk [3] which contains a lot of helper tools for using OVS-DPDK in OpenStack, along with links to a Brighttalk video I recently gave regarding the state of OVS-DPDK in OpenStack. Hope this helps, Stephen [1] https://github.com/openvswitch/ovs/commit/90ca71dd317fea1ccf0040389 dae895aa7b2b561 [2] https://github.com/01org/dpdk-ovs [3] https://github.com/openstack/networking-ovs-dpdk __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
