Jason Wang cd7d1d26b0 vhost_net: start/stop guest notifiers properly ... commit a9f98bb5eb "vhost: multiqueue support" changed the order of stopping the device. Previously vhost_dev_stop would disable backend and only afterwards, unset guest notifiers. We now unset guest notifiers while vhost is still active. This can lose interrupts causing guest networking to fail. In particular, this has been observed during migration. To fix this, several other changes are needed: - remove the hdev->started assertion in vhost.c since we may want to start the guest notifiers before vhost starts and stop the guest notifiers after vhost is stopped. - introduce the vhost_net_set_vq_index() and call it before setting guest notifiers. This is to guarantee vhost_net has the correct virtqueue index when setting guest notifiers. MST: fix up error handling. Cc: qemu-stable@nongnu.org Cc: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Andrey Korolyov <andrey@xdel.ru> Reported-by: "Zhangjie (HZ)" <zhangjie14@huawei.com> Tested-by: William Dauchy <william@gandi.net> Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>		2014-09-03 16:40:44 +03:00
..
dataplane	virtio-blk: embed VirtQueueElement in VirtIOBlockReq	2014-07-14 12:03:20 +02:00
Makefile.objs	Add vhost-user as a vhost backend.	2014-06-19 16:41:56 +03:00
vhost-backend.c	virtio: Move extern declaration to header file	2014-08-09 00:06:32 +04:00
vhost-user.c	vhost-user: minor cleanups	2014-07-18 02:22:24 +03:00
vhost.c	vhost_net: start/stop guest notifiers properly	2014-09-03 16:40:44 +03:00
virtio-balloon.c	virtio-balloon: use virtio wrappers to access page frame numbers	2014-06-29 19:39:42 +03:00
virtio-bus.c	virtio-bus: cleanup plug/unplug interface	2013-12-09 21:46:48 +01:00
virtio-mmio.c	hw/virtio: enable common virtio feature for mmio device	2014-07-06 09:13:54 +03:00
virtio-pci.c	memory: remove memory_region_destroy	2014-08-18 12:06:21 +02:00
virtio-pci.h	virtio-blk: use aliases instead of duplicate qdev properties	2014-07-01 09:15:02 +02:00
virtio-rng.c	virtio-rng: add some trace events	2014-08-12 14:29:55 +01:00
virtio.c	virtio: allow byte swapping for vring	2014-06-29 19:39:42 +03:00