[libvirt] [PATCH] qemu: multiqueue for ccw devices

Allow ccw devices to be used with multiqueues. Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com&gt; Reviewed-by: Matthew Rosato <mjrosato(a)linux.vnet.ibm.com&gt; Reviewed-by: Daniel Hansel <daniel.hansel(a)linux.vnet.ibm.com&gt; Reviewed-by: Cornelia Huck <cornelia.huck(a)de.ibm.comCornelia Huck <cornelia.huck(a)de.ibm.com&gt;&gt; --- src/qemu/qemu_command.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 2137985..0205831 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -5062,9 +5062,13 @@ qemuBuildNicDevStr(virDomainDefPtr def, } } if (usingVirtio && vhostfdSize > 1) { - /* As advised at http://www.linux-kvm.org/page/Multiqueue - * we should add vectors=2*N+2 where N is the vhostfdSize */ - virBufferAsprintf(&buf, ",mq=on,vectors=%zu", 2 * vhostfdSize + 2); + if (net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) { + virBufferAsprintf(&buf, ",mq=on"); + } else { + /* As advised at http://www.linux-kvm.org/page/Multiqueue + * we should add vectors=2*N+2 where N is the vhostfdSize */ + virBufferAsprintf(&buf, ",mq=on,vectors=%zu", 2 * vhostfdSize + 2); + } } if (vlan == -1) virBufferAsprintf(&buf, ",netdev=host%s", net->info.alias); -- 2.3.0