On Wed, Apr 15, 2015 at 12:03 AM, Panu Matilainen <pmati...@redhat.com> wrote: > On 04/14/2015 11:31 PM, Pravin Shelar wrote: >> >> On Thu, Mar 19, 2015 at 11:48 AM, Ciara Loftus <ciara.lof...@intel.com> >> wrote: >>> >>> This patch adds support for a new port type to the userspace datapath >>> called dpdkvhostuser. It adds to the existing infrastructure of >>> vhost-cuse, however disables vhost-cuse ports in favour of vhost-user >>> ports. >>> >>> A new dpdkvhostuser port will create a unix domain socket which when >>> provided to QEMU is used to facilitate communication between the >>> virtio-net device on the VM and the OVS port. >>> >>> Signed-off-by: Ciara Loftus <ciara.lof...@intel.com> >>> --- >>> INSTALL.DPDK.md | 115 >>> ++++++++++++++++++++++++++++++++++++------------ >> >> ... >> ... >>> >>> >>> diff --git a/acinclude.m4 b/acinclude.m4 >>> index 18598b3..2113dfb 100644 >>> --- a/acinclude.m4 >>> +++ b/acinclude.m4 >>> @@ -224,6 +224,19 @@ AC_DEFUN([OVS_CHECK_DPDK], [ >>> AM_CONDITIONAL([DPDK_NETDEV], test -n "$RTE_SDK") >>> ]) >>> >>> +dnl OVS_CHECK_VHOST_CUSE >>> +dnl >>> +dnl Enable DPDK vhost-cuse support in favour of vhost-user >>> +AC_DEFUN([OVS_CHECK_VHOST_CUSE], [ >>> + AC_ARG_WITH(vhostcuse, >>> + [AC_HELP_STRING([--with-vhostcuse], >>> + [Enable DPDK vhost-cuse])]) >>> + >>> + if test X"$with_vhostcuse" != X; then >>> + AC_DEFINE([VHOST_CUSE], [1], [DPDK vhost-cuse support enabled, >>> vhost-user disabled.]) >>> + fi >>> +]) >>> + >>> dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH]) >>> dnl >>> dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise >>> IF-NO-MATCH. >>> diff --git a/configure.ac b/configure.ac >>> index 8d47eb9..14c4b35 100644 >> >> >> We need to compile-in support for both - vhost-cuse and vhost-user and >> use it according to port configuration. This way we can keep single >> executable for all use cases. > > > The problem is that this is a compile-time option in DPDK, librte_vhost only > supports one or the other depending on how DPDK was built. > > The API looks the same in both cases, but behaves differently in that that > rte_vhost_driver_register() expects an absolute path for vhost-user and a > relative one (under /dev) for vhost-cuse. >
ok. If you detect vhost implementation build in DPDK library at configure time there is no need for another OVS configure option. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
