[libvirt] [PATCH 0/3] exposing busy polling support for vhost-net
From: Sahid Orentino Ferdjaoui <sahid.ferdjaoui(a)redhat.com>
In version 2.7.0, QEMU introduced support of busy polling for
vhost-net [0]. To avoid paraphrasing original authors of that feature
and the purpose it I prefer to share a pointer [1].
This patch serie exposes throught the NIC driver-specific element a
new option 'poll_us'. That option is only available with the backend
driver 'vhost'.
The option 'poll_us' takes a positive number. 0 means that the option
is not going to be exposed.
[0] 69e87b32680a41d9761191443587c595b6f5fc3f
[1] https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg04595.html
Sahid Orentino Ferdjaoui (3):
qemu: add capability for vhost-net busy polling
conf: introduce 'poll_us' attribute for domain interface
qemu: add busy polling support
docs/formatdomain.html.in | 12 ++++++++++-
docs/schemas/domaincommon.rng | 5 +++++
src/conf/domain_conf.c | 16 +++++++++++++++
src/conf/domain_conf.h | 1 +
src/qemu/qemu_capabilities.c | 6 ++++++
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_command.c | 22 +++++++++++++++++++++
src/qemu/qemu_hotplug.c | 12 +++++++++++
tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml | 1 +
tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml | 1 +
tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml | 1 +
tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml | 1 +
tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml | 1 +
.../qemuxml2argv-net-virtio-netdev-pollus-fail.xml | 23 ++++++++++++++++++++++
...xml2argv-net-virtio-netdev-pollus-qemu-fail.xml | 23 ++++++++++++++++++++++
.../qemuxml2argv-net-virtio-netdev-pollus.args | 23 ++++++++++++++++++++++
.../qemuxml2argv-net-virtio-netdev-pollus.xml | 23 ++++++++++++++++++++++
tests/qemuxml2argvtest.c | 9 +++++++++
18 files changed, 180 insertions(+), 1 deletion(-)
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-net-virtio-netdev-pollus-fail.xml
create mode 100644
tests/qemuxml2argvdata/qemuxml2argv-net-virtio-netdev-pollus-qemu-fail.xml
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-net-virtio-netdev-pollus.args
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-net-virtio-netdev-pollus.xml
--
2.9.4