mirror of https://gitee.com/openkylin/linux.git
Staging: hv: reorganize netvsc_drv.c
Saves space by getting rid of the forward declarations. Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
parent
02fafbc619
commit
df2fff28ec
|
|
@ -39,19 +39,6 @@
|
||||||
|
|
||||||
MODULE_LICENSE("GPL");
|
MODULE_LICENSE("GPL");
|
||||||
|
|
||||||
static int netvsc_probe(struct device *device);
|
|
||||||
static int netvsc_remove(struct device *device);
|
|
||||||
static int netvsc_open(struct net_device *net);
|
|
||||||
static void netvsc_xmit_completion(void *context);
|
|
||||||
static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net);
|
|
||||||
static int netvsc_recv_callback(struct hv_device *device_obj,
|
|
||||||
struct hv_netvsc_packet *Packet);
|
|
||||||
static int netvsc_close(struct net_device *net);
|
|
||||||
static struct net_device_stats *netvsc_get_stats(struct net_device *net);
|
|
||||||
static void netvsc_linkstatus_callback(struct hv_device *device_obj,
|
|
||||||
unsigned int status);
|
|
||||||
|
|
||||||
|
|
||||||
struct net_device_context {
|
struct net_device_context {
|
||||||
/* point back to our device context */
|
/* point back to our device context */
|
||||||
struct device_context *device_ctx;
|
struct device_context *device_ctx;
|
||||||
|
|
@ -70,38 +57,6 @@ static int netvsc_ringbuffer_size = NETVSC_DEVICE_RING_BUFFER_SIZE;
|
||||||
/* The one and only one */
|
/* The one and only one */
|
||||||
static struct netvsc_driver_context g_netvsc_drv;
|
static struct netvsc_driver_context g_netvsc_drv;
|
||||||
|
|
||||||
static int netvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
|
|
||||||
{
|
|
||||||
struct netvsc_driver *net_drv_obj = &g_netvsc_drv.drv_obj;
|
|
||||||
struct driver_context *drv_ctx = &g_netvsc_drv.drv_ctx;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
DPRINT_ENTER(NETVSC_DRV);
|
|
||||||
|
|
||||||
vmbus_get_interface(&net_drv_obj->Base.VmbusChannelInterface);
|
|
||||||
|
|
||||||
net_drv_obj->RingBufferSize = netvsc_ringbuffer_size;
|
|
||||||
net_drv_obj->OnReceiveCallback = netvsc_recv_callback;
|
|
||||||
net_drv_obj->OnLinkStatusChanged = netvsc_linkstatus_callback;
|
|
||||||
|
|
||||||
/* Callback to client driver to complete the initialization */
|
|
||||||
pfn_drv_init(&net_drv_obj->Base);
|
|
||||||
|
|
||||||
drv_ctx->driver.name = net_drv_obj->Base.name;
|
|
||||||
memcpy(&drv_ctx->class_id, &net_drv_obj->Base.deviceType,
|
|
||||||
sizeof(struct hv_guid));
|
|
||||||
|
|
||||||
drv_ctx->probe = netvsc_probe;
|
|
||||||
drv_ctx->remove = netvsc_remove;
|
|
||||||
|
|
||||||
/* The driver belongs to vmbus */
|
|
||||||
ret = vmbus_child_driver_register(drv_ctx);
|
|
||||||
|
|
||||||
DPRINT_EXIT(NETVSC_DRV);
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static struct net_device_stats *netvsc_get_stats(struct net_device *net)
|
static struct net_device_stats *netvsc_get_stats(struct net_device *net)
|
||||||
{
|
{
|
||||||
struct net_device_context *net_device_ctx = netdev_priv(net);
|
struct net_device_context *net_device_ctx = netdev_priv(net);
|
||||||
|
|
@ -113,132 +68,6 @@ static void netvsc_set_multicast_list(struct net_device *net)
|
||||||
{
|
{
|
||||||
}
|
}
|
||||||
|
|
||||||
static const struct net_device_ops device_ops = {
|
|
||||||
.ndo_open = netvsc_open,
|
|
||||||
.ndo_stop = netvsc_close,
|
|
||||||
.ndo_start_xmit = netvsc_start_xmit,
|
|
||||||
.ndo_get_stats = netvsc_get_stats,
|
|
||||||
.ndo_set_multicast_list = netvsc_set_multicast_list,
|
|
||||||
};
|
|
||||||
|
|
||||||
static int netvsc_probe(struct device *device)
|
|
||||||
{
|
|
||||||
struct driver_context *driver_ctx =
|
|
||||||
driver_to_driver_context(device->driver);
|
|
||||||
struct netvsc_driver_context *net_drv_ctx =
|
|
||||||
(struct netvsc_driver_context *)driver_ctx;
|
|
||||||
struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
|
|
||||||
struct device_context *device_ctx = device_to_device_context(device);
|
|
||||||
struct hv_device *device_obj = &device_ctx->device_obj;
|
|
||||||
struct net_device *net = NULL;
|
|
||||||
struct net_device_context *net_device_ctx;
|
|
||||||
struct netvsc_device_info device_info;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
DPRINT_ENTER(NETVSC_DRV);
|
|
||||||
|
|
||||||
if (!net_drv_obj->Base.OnDeviceAdd)
|
|
||||||
return -1;
|
|
||||||
|
|
||||||
net = alloc_netdev(sizeof(struct net_device_context), "seth%d",
|
|
||||||
ether_setup);
|
|
||||||
if (!net)
|
|
||||||
return -1;
|
|
||||||
|
|
||||||
/* Set initial state */
|
|
||||||
netif_carrier_off(net);
|
|
||||||
netif_stop_queue(net);
|
|
||||||
|
|
||||||
net_device_ctx = netdev_priv(net);
|
|
||||||
net_device_ctx->device_ctx = device_ctx;
|
|
||||||
dev_set_drvdata(device, net);
|
|
||||||
|
|
||||||
/* Notify the netvsc driver of the new device */
|
|
||||||
ret = net_drv_obj->Base.OnDeviceAdd(device_obj, &device_info);
|
|
||||||
if (ret != 0) {
|
|
||||||
free_netdev(net);
|
|
||||||
dev_set_drvdata(device, NULL);
|
|
||||||
|
|
||||||
DPRINT_ERR(NETVSC_DRV, "unable to add netvsc device (ret %d)",
|
|
||||||
ret);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* If carrier is still off ie we did not get a link status callback,
|
|
||||||
* update it if necessary
|
|
||||||
*/
|
|
||||||
/*
|
|
||||||
* FIXME: We should use a atomic or test/set instead to avoid getting
|
|
||||||
* out of sync with the device's link status
|
|
||||||
*/
|
|
||||||
if (!netif_carrier_ok(net))
|
|
||||||
if (!device_info.LinkState)
|
|
||||||
netif_carrier_on(net);
|
|
||||||
|
|
||||||
memcpy(net->dev_addr, device_info.MacAddr, ETH_ALEN);
|
|
||||||
|
|
||||||
net->netdev_ops = &device_ops;
|
|
||||||
|
|
||||||
SET_NETDEV_DEV(net, device);
|
|
||||||
|
|
||||||
ret = register_netdev(net);
|
|
||||||
if (ret != 0) {
|
|
||||||
/* Remove the device and release the resource */
|
|
||||||
net_drv_obj->Base.OnDeviceRemove(device_obj);
|
|
||||||
free_netdev(net);
|
|
||||||
}
|
|
||||||
|
|
||||||
DPRINT_EXIT(NETVSC_DRV);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int netvsc_remove(struct device *device)
|
|
||||||
{
|
|
||||||
struct driver_context *driver_ctx =
|
|
||||||
driver_to_driver_context(device->driver);
|
|
||||||
struct netvsc_driver_context *net_drv_ctx =
|
|
||||||
(struct netvsc_driver_context *)driver_ctx;
|
|
||||||
struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
|
|
||||||
struct device_context *device_ctx = device_to_device_context(device);
|
|
||||||
struct net_device *net = dev_get_drvdata(&device_ctx->device);
|
|
||||||
struct hv_device *device_obj = &device_ctx->device_obj;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
DPRINT_ENTER(NETVSC_DRV);
|
|
||||||
|
|
||||||
if (net == NULL) {
|
|
||||||
DPRINT_INFO(NETVSC, "no net device to remove");
|
|
||||||
DPRINT_EXIT(NETVSC_DRV);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!net_drv_obj->Base.OnDeviceRemove) {
|
|
||||||
DPRINT_EXIT(NETVSC_DRV);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Stop outbound asap */
|
|
||||||
netif_stop_queue(net);
|
|
||||||
/* netif_carrier_off(net); */
|
|
||||||
|
|
||||||
unregister_netdev(net);
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Call to the vsc driver to let it know that the device is being
|
|
||||||
* removed
|
|
||||||
*/
|
|
||||||
ret = net_drv_obj->Base.OnDeviceRemove(device_obj);
|
|
||||||
if (ret != 0) {
|
|
||||||
/* TODO: */
|
|
||||||
DPRINT_ERR(NETVSC, "unable to remove vsc device (ret %d)", ret);
|
|
||||||
}
|
|
||||||
|
|
||||||
free_netdev(net);
|
|
||||||
DPRINT_EXIT(NETVSC_DRV);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int netvsc_open(struct net_device *net)
|
static int netvsc_open(struct net_device *net)
|
||||||
{
|
{
|
||||||
struct net_device_context *net_device_ctx = netdev_priv(net);
|
struct net_device_context *net_device_ctx = netdev_priv(net);
|
||||||
|
|
@ -556,6 +385,132 @@ static int netvsc_recv_callback(struct hv_device *device_obj,
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static const struct net_device_ops device_ops = {
|
||||||
|
.ndo_open = netvsc_open,
|
||||||
|
.ndo_stop = netvsc_close,
|
||||||
|
.ndo_start_xmit = netvsc_start_xmit,
|
||||||
|
.ndo_get_stats = netvsc_get_stats,
|
||||||
|
.ndo_set_multicast_list = netvsc_set_multicast_list,
|
||||||
|
};
|
||||||
|
|
||||||
|
static int netvsc_probe(struct device *device)
|
||||||
|
{
|
||||||
|
struct driver_context *driver_ctx =
|
||||||
|
driver_to_driver_context(device->driver);
|
||||||
|
struct netvsc_driver_context *net_drv_ctx =
|
||||||
|
(struct netvsc_driver_context *)driver_ctx;
|
||||||
|
struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
|
||||||
|
struct device_context *device_ctx = device_to_device_context(device);
|
||||||
|
struct hv_device *device_obj = &device_ctx->device_obj;
|
||||||
|
struct net_device *net = NULL;
|
||||||
|
struct net_device_context *net_device_ctx;
|
||||||
|
struct netvsc_device_info device_info;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
DPRINT_ENTER(NETVSC_DRV);
|
||||||
|
|
||||||
|
if (!net_drv_obj->Base.OnDeviceAdd)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
net = alloc_netdev(sizeof(struct net_device_context), "seth%d",
|
||||||
|
ether_setup);
|
||||||
|
if (!net)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* Set initial state */
|
||||||
|
netif_carrier_off(net);
|
||||||
|
netif_stop_queue(net);
|
||||||
|
|
||||||
|
net_device_ctx = netdev_priv(net);
|
||||||
|
net_device_ctx->device_ctx = device_ctx;
|
||||||
|
dev_set_drvdata(device, net);
|
||||||
|
|
||||||
|
/* Notify the netvsc driver of the new device */
|
||||||
|
ret = net_drv_obj->Base.OnDeviceAdd(device_obj, &device_info);
|
||||||
|
if (ret != 0) {
|
||||||
|
free_netdev(net);
|
||||||
|
dev_set_drvdata(device, NULL);
|
||||||
|
|
||||||
|
DPRINT_ERR(NETVSC_DRV, "unable to add netvsc device (ret %d)",
|
||||||
|
ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* If carrier is still off ie we did not get a link status callback,
|
||||||
|
* update it if necessary
|
||||||
|
*/
|
||||||
|
/*
|
||||||
|
* FIXME: We should use a atomic or test/set instead to avoid getting
|
||||||
|
* out of sync with the device's link status
|
||||||
|
*/
|
||||||
|
if (!netif_carrier_ok(net))
|
||||||
|
if (!device_info.LinkState)
|
||||||
|
netif_carrier_on(net);
|
||||||
|
|
||||||
|
memcpy(net->dev_addr, device_info.MacAddr, ETH_ALEN);
|
||||||
|
|
||||||
|
net->netdev_ops = &device_ops;
|
||||||
|
|
||||||
|
SET_NETDEV_DEV(net, device);
|
||||||
|
|
||||||
|
ret = register_netdev(net);
|
||||||
|
if (ret != 0) {
|
||||||
|
/* Remove the device and release the resource */
|
||||||
|
net_drv_obj->Base.OnDeviceRemove(device_obj);
|
||||||
|
free_netdev(net);
|
||||||
|
}
|
||||||
|
|
||||||
|
DPRINT_EXIT(NETVSC_DRV);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int netvsc_remove(struct device *device)
|
||||||
|
{
|
||||||
|
struct driver_context *driver_ctx =
|
||||||
|
driver_to_driver_context(device->driver);
|
||||||
|
struct netvsc_driver_context *net_drv_ctx =
|
||||||
|
(struct netvsc_driver_context *)driver_ctx;
|
||||||
|
struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
|
||||||
|
struct device_context *device_ctx = device_to_device_context(device);
|
||||||
|
struct net_device *net = dev_get_drvdata(&device_ctx->device);
|
||||||
|
struct hv_device *device_obj = &device_ctx->device_obj;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
DPRINT_ENTER(NETVSC_DRV);
|
||||||
|
|
||||||
|
if (net == NULL) {
|
||||||
|
DPRINT_INFO(NETVSC, "no net device to remove");
|
||||||
|
DPRINT_EXIT(NETVSC_DRV);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!net_drv_obj->Base.OnDeviceRemove) {
|
||||||
|
DPRINT_EXIT(NETVSC_DRV);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Stop outbound asap */
|
||||||
|
netif_stop_queue(net);
|
||||||
|
/* netif_carrier_off(net); */
|
||||||
|
|
||||||
|
unregister_netdev(net);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Call to the vsc driver to let it know that the device is being
|
||||||
|
* removed
|
||||||
|
*/
|
||||||
|
ret = net_drv_obj->Base.OnDeviceRemove(device_obj);
|
||||||
|
if (ret != 0) {
|
||||||
|
/* TODO: */
|
||||||
|
DPRINT_ERR(NETVSC, "unable to remove vsc device (ret %d)", ret);
|
||||||
|
}
|
||||||
|
|
||||||
|
free_netdev(net);
|
||||||
|
DPRINT_EXIT(NETVSC_DRV);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
static int netvsc_drv_exit_cb(struct device *dev, void *data)
|
static int netvsc_drv_exit_cb(struct device *dev, void *data)
|
||||||
{
|
{
|
||||||
struct device **curr = (struct device **)data;
|
struct device **curr = (struct device **)data;
|
||||||
|
|
@ -604,6 +559,38 @@ static void netvsc_drv_exit(void)
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static int netvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
|
||||||
|
{
|
||||||
|
struct netvsc_driver *net_drv_obj = &g_netvsc_drv.drv_obj;
|
||||||
|
struct driver_context *drv_ctx = &g_netvsc_drv.drv_ctx;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
DPRINT_ENTER(NETVSC_DRV);
|
||||||
|
|
||||||
|
vmbus_get_interface(&net_drv_obj->Base.VmbusChannelInterface);
|
||||||
|
|
||||||
|
net_drv_obj->RingBufferSize = netvsc_ringbuffer_size;
|
||||||
|
net_drv_obj->OnReceiveCallback = netvsc_recv_callback;
|
||||||
|
net_drv_obj->OnLinkStatusChanged = netvsc_linkstatus_callback;
|
||||||
|
|
||||||
|
/* Callback to client driver to complete the initialization */
|
||||||
|
pfn_drv_init(&net_drv_obj->Base);
|
||||||
|
|
||||||
|
drv_ctx->driver.name = net_drv_obj->Base.name;
|
||||||
|
memcpy(&drv_ctx->class_id, &net_drv_obj->Base.deviceType,
|
||||||
|
sizeof(struct hv_guid));
|
||||||
|
|
||||||
|
drv_ctx->probe = netvsc_probe;
|
||||||
|
drv_ctx->remove = netvsc_remove;
|
||||||
|
|
||||||
|
/* The driver belongs to vmbus */
|
||||||
|
ret = vmbus_child_driver_register(drv_ctx);
|
||||||
|
|
||||||
|
DPRINT_EXIT(NETVSC_DRV);
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
static int __init netvsc_init(void)
|
static int __init netvsc_init(void)
|
||||||
{
|
{
|
||||||
int ret;
|
int ret;
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue