diff options
Diffstat (limited to 'drivers/net/hyperv/netvsc.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index ec313fc08d82..eddce3cdafa8 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -33,6 +33,30 @@ #include "hyperv_net.h" +/* + * Switch the data path from the synthetic interface to the VF + * interface. + */ +void netvsc_switch_datapath(struct netvsc_device *nv_dev, bool vf) +{ + struct nvsp_message *init_pkt = &nv_dev->channel_init_pkt; + struct hv_device *dev = nv_dev->dev; + + memset(init_pkt, 0, sizeof(struct nvsp_message)); + init_pkt->hdr.msg_type = NVSP_MSG4_TYPE_SWITCH_DATA_PATH; + if (vf) + init_pkt->msg.v4_msg.active_dp.active_datapath = + NVSP_DATAPATH_VF; + else + init_pkt->msg.v4_msg.active_dp.active_datapath = + NVSP_DATAPATH_SYNTHETIC; + + vmbus_sendpacket(dev->channel, init_pkt, + sizeof(struct nvsp_message), + (unsigned long)init_pkt, + VM_PKT_DATA_INBAND, 0); +} + static struct netvsc_device *alloc_net_device(struct hv_device *device) { @@ -52,11 +76,16 @@ static struct netvsc_device *alloc_net_device(struct hv_device *device) init_waitqueue_head(&net_device->wait_drain); net_device->start_remove = false; net_device->destroy = false; + atomic_set(&net_device->open_cnt, 0); + atomic_set(&net_device->vf_use_cnt, 0); net_device->dev = device; net_device->ndev = ndev; net_device->max_pkt = RNDIS_MAX_PKT_DEFAULT; net_device->pkt_align = RNDIS_PKT_ALIGN_DEFAULT; + net_device->vf_netdev = NULL; + net_device->vf_inject = false; + hv_set_drvdata(device, net_device); return net_device; } |