If the peer's type is vdpa,set the mac address to NIC in virtio_net_device_realize, Also sometime vdpa get an all 0 macaddress from the hardware, this will cause the traffic down So we add the check for this part. if we get an 0 mac address we will use the default mac address instead
Signed-off-by: Cindy Lu <l...@redhat.com> --- hw/net/virtio-net.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index cb0d27084c..7db9da1482 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -126,6 +126,7 @@ static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config) VirtIONet *n = VIRTIO_NET(vdev); struct virtio_net_config netcfg; NetClientState *nc = qemu_get_queue(n->nic); + static const MACAddr zero = { .a = { 0, 0, 0, 0, 0, 0 } }; int ret = 0; memset(&netcfg, 0 , sizeof(struct virtio_net_config)); @@ -151,7 +152,11 @@ static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config) ret = vhost_net_get_config(get_vhost_net(nc->peer), (uint8_t *)&netcfg, n->config_size); if (ret != -1) { - memcpy(config, &netcfg, n->config_size); + if (memcmp(&netcfg.mac, &zero, sizeof(zero)) != 0) { + memcpy(config, &netcfg, n->config_size); + } else { + error_report("Get an all zero mac address from hardware"); + } } } } @@ -3399,6 +3404,11 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp) nc = qemu_get_queue(n->nic); nc->rxfilter_notify_enabled = 1; + if (nc->peer && nc->peer->info->type == NET_CLIENT_DRIVER_VHOST_VDPA) { + struct virtio_net_config netcfg = {}; + memcpy(&netcfg.mac, &n->nic_conf.macaddr, ETH_ALEN); + virtio_net_set_config(vdev, (uint8_t *)&netcfg); + } QTAILQ_INIT(&n->rsc_chains); n->qdev = dev; -- 2.21.3