Hi Yuanhan, On 01/29/2016 05:58 AM, Yuanhan Liu wrote: > It's actually a feature already enabled in Linux kernel (since v3.5). > What we need to do is simply to claim that we support such feature, > and nothing else. > > With that, the guest will send an ARP message after live migration > to notify the switches about the new location of migrated VM. > > Signed-off-by: Yuanhan Liu <yuanhan.liu at linux.intel.com> > Tested-by: Pavel Fedin <p.fedin at samsung.com> > --- > lib/librte_vhost/virtio-net.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c > index 03044f6..0ba5045 100644 > --- a/lib/librte_vhost/virtio-net.c > +++ b/lib/librte_vhost/virtio-net.c > @@ -74,6 +74,7 @@ static struct virtio_net_config_ll *ll_root; > #define VHOST_SUPPORTED_FEATURES ((1ULL << VIRTIO_NET_F_MRG_RXBUF) | \ > (1ULL << VIRTIO_NET_F_CTRL_VQ) | \ > (1ULL << VIRTIO_NET_F_CTRL_RX) | \ > + (1ULL << VIRTIO_NET_F_GUEST_ANNOUNCE) | \ > (VHOST_SUPPORTS_MQ) | \ > (1ULL << VIRTIO_F_VERSION_1) | \ > (1ULL << VHOST_F_LOG_ALL) | \ >
I'm trying to compile the dpdk on an debian-7, and it fails due to this patch. Indeed, the define VIRTIO_NET_F_GUEST_ANNOUNCE is not present in /usr/include/linux/virtio_net.h on this distribution. I'm wondering if the librte_vhost shouldn't embed its own version of virtio_net.h instead of relying on the one from the distribution. It seems it has been done this way for the virtio guest PMD in dpdk.org/drivers/net/virtio/virtio_pci.h. What do you think? Thanks, Olivier
