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spf=pass smtp.mailfrom=libvir-list-bounces@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com C68BD33459C From: sferdjao@redhat.com To: libvir-list@redhat.com Date: Thu, 15 Jun 2017 10:17:13 -0400 Message-Id: <20170615141715.17708-2-sferdjao@redhat.com> In-Reply-To: <20170615141715.17708-1-sferdjao@redhat.com> References: <20170615141715.17708-1-sferdjao@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-loop: libvir-list@redhat.com Cc: Sahid Orentino Ferdjaoui , laine@redhat.com Subject: [libvirt] [PATCH 1/3] qemu: add capability for vhost-net busy polling X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Thu, 15 Jun 2017 14:20:57 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Sahid Orentino Ferdjaoui QEMU 2.7.0 adds support of busy polling on vhost-net. 69e87b32680a41d9761191443587c595b6f5fc3f Signed-off-by: Sahid Orentino Ferdjaoui --- src/qemu/qemu_capabilities.c | 6 ++++++ src/qemu/qemu_capabilities.h | 1 + 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 + 7 files changed, 12 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index c0c39bd..faf6d82 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -376,6 +376,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, "intel-iommu.device-iotlb", /* 260 */ "virtio.iommu_platform", "virtio.ats", + "vhost-net.poll_us", ); =20 =20 @@ -4773,6 +4774,11 @@ virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps, if (qemuCaps->version >=3D 2006000) virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_KERNEL_IRQCHIP_SPLIT); =20 + /* Support for busy polling on vhost-net devices ("-netdev + * tap,...,poll-us=3Dn") */ + if (qemuCaps->version >=3D 2007000) + virQEMUCapsSet(qemuCaps, QEMU_CAPS_VHOST_NET_POLL_US); + if (virQEMUCapsProbeQMPCommands(qemuCaps, mon) < 0) goto cleanup; =20 diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index e57cae9..33f8ed0 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -415,6 +415,7 @@ typedef enum { QEMU_CAPS_INTEL_IOMMU_DEVICE_IOTLB, /* intel-iommu.device-iotlb */ QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM, /* virtio-*-pci.iommu_platform */ QEMU_CAPS_VIRTIO_PCI_ATS, /* virtio-*-pci.ats */ + QEMU_CAPS_VHOST_NET_POLL_US, /* vhost-net with -netdev poll-us=3D */ =20 QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; diff --git a/tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml b/tests/qemuca= pabilitiesdata/caps_2.7.0.s390x.xml index 70cce64..f833d4a 100644 --- a/tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml +++ b/tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml @@ -132,6 +132,7 @@ + 2007000 0 diff --git a/tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml b/tests/qemuc= apabilitiesdata/caps_2.7.0.x86_64.xml index 49c0462..2ab44cf 100644 --- a/tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml @@ -205,6 +205,7 @@ + 2007000 0 (v2.7.0) diff --git a/tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml b/tests/qemuca= pabilitiesdata/caps_2.8.0.s390x.xml index 51be9bc..98f763d 100644 --- a/tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml +++ b/tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml @@ -134,6 +134,7 @@ + 2007093 0 diff --git a/tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml b/tests/qemuc= apabilitiesdata/caps_2.8.0.x86_64.xml index 01edbc8..bafe08f 100644 --- a/tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml @@ -207,6 +207,7 @@ + 2008000 0 (v2.8.0) diff --git a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml b/tests/qemuc= apabilitiesdata/caps_2.9.0.x86_64.xml index 58dd9f6..dc93b5a 100644 --- a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml @@ -218,6 +218,7 @@ + 2009000 0 (v2.9.0) --=20 2.9.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list