{
struct net_device_context *ndevctx =
container_of(w, struct net_device_context, work);
- struct netvsc_device *nvdev;
+ struct hv_device *device_obj = ndevctx->device_ctx;
+ struct net_device *ndev = hv_get_drvdata(device_obj);
+ struct netvsc_device *nvdev = ndevctx->nvdev;
struct rndis_device *rdev;
- nvdev = hv_get_drvdata(ndevctx->device_ctx);
- if (nvdev == NULL || nvdev->ndev == NULL)
+ if (!nvdev)
return;
rdev = nvdev->extension;
if (rdev == NULL)
return;
- if (nvdev->ndev->flags & IFF_PROMISC)
+ if (ndev->flags & IFF_PROMISC)
rndis_filter_set_packet_filter(rdev,
NDIS_PACKET_TYPE_PROMISCUOUS);
else
{
struct net_device_context *net_device_ctx = netdev_priv(net);
struct hv_device *device_obj = net_device_ctx->device_ctx;
- struct netvsc_device *nvdev;
+ struct netvsc_device *nvdev = net_device_ctx->nvdev;
struct rndis_device *rdev;
int ret = 0;
netif_tx_wake_all_queues(net);
- nvdev = hv_get_drvdata(device_obj);
rdev = nvdev->extension;
if (!rdev->link_state)
netif_carrier_on(net);
{
struct net_device_context *net_device_ctx = netdev_priv(net);
struct hv_device *device_obj = net_device_ctx->device_ctx;
- struct netvsc_device *nvdev = hv_get_drvdata(device_obj);
+ struct netvsc_device *nvdev = net_device_ctx->nvdev;
int ret;
u32 aread, awrite, i, msec = 10, retry = 0, retry_max = 20;
struct vmbus_channel *chn;
void *accel_priv, select_queue_fallback_t fallback)
{
struct net_device_context *net_device_ctx = netdev_priv(ndev);
- struct hv_device *hdev = net_device_ctx->device_ctx;
- struct netvsc_device *nvsc_dev = hv_get_drvdata(hdev);
+ struct netvsc_device *nvsc_dev = net_device_ctx->nvdev;
u32 hash;
u16 q_idx = 0;
struct rndis_indicate_status *indicate = &resp->msg.indicate_status;
struct net_device *net;
struct net_device_context *ndev_ctx;
- struct netvsc_device *net_device;
struct netvsc_reconfig *event;
unsigned long flags;
indicate->status != RNDIS_STATUS_MEDIA_DISCONNECT)
return;
- net_device = hv_get_drvdata(device_obj);
- net = net_device->ndev;
+ net = hv_get_drvdata(device_obj);
if (!net || net->reg_state != NETREG_REGISTERED)
return;
struct vmbus_channel *channel,
u16 vlan_tci)
{
- struct net_device *net;
- struct net_device_context *net_device_ctx;
+ struct net_device *net = hv_get_drvdata(device_obj);
+ struct net_device_context *net_device_ctx = netdev_priv(net);
struct sk_buff *skb;
struct sk_buff *vf_skb;
struct netvsc_stats *rx_stats;
- struct netvsc_device *netvsc_dev = hv_get_drvdata(device_obj);
+ struct netvsc_device *netvsc_dev = net_device_ctx->nvdev;
u32 bytes_recvd = packet->total_data_buflen;
int ret = 0;
- net = netvsc_dev->ndev;
if (!net || net->reg_state != NETREG_REGISTERED)
return NVSP_STAT_FAIL;
struct ethtool_channels *channel)
{
struct net_device_context *net_device_ctx = netdev_priv(net);
- struct hv_device *dev = net_device_ctx->device_ctx;
- struct netvsc_device *nvdev = hv_get_drvdata(dev);
+ struct netvsc_device *nvdev = net_device_ctx->nvdev;
if (nvdev) {
channel->max_combined = nvdev->max_chn;
{
struct net_device_context *net_device_ctx = netdev_priv(net);
struct hv_device *dev = net_device_ctx->device_ctx;
- struct netvsc_device *nvdev = hv_get_drvdata(dev);
+ struct netvsc_device *nvdev = net_device_ctx->nvdev;
struct netvsc_device_info device_info;
u32 num_chn;
u32 max_chn;
goto out;
do_set:
- nvdev->start_remove = true;
+ net_device_ctx->start_remove = true;
rndis_filter_device_remove(dev);
nvdev->num_chn = channels->combined_count;
- net_device_ctx->device_ctx = dev;
- hv_set_drvdata(dev, net);
-
memset(&device_info, 0, sizeof(device_info));
device_info.num_chn = nvdev->num_chn; /* passed to RNDIS */
device_info.ring_size = ring_size;
goto recover;
}
- nvdev = hv_get_drvdata(dev);
+ nvdev = net_device_ctx->nvdev;
ret = netif_set_real_num_tx_queues(net, nvdev->num_chn);
if (ret) {
out:
netvsc_open(net);
+ net_device_ctx->start_remove = false;
+ /* We may have missed link change notifications */
+ schedule_delayed_work(&net_device_ctx->dwork, 0);
return ret;
static int netvsc_change_mtu(struct net_device *ndev, int mtu)
{
struct net_device_context *ndevctx = netdev_priv(ndev);
- struct hv_device *hdev = ndevctx->device_ctx;
- struct netvsc_device *nvdev = hv_get_drvdata(hdev);
+ struct netvsc_device *nvdev = ndevctx->nvdev;
+ struct hv_device *hdev = ndevctx->device_ctx;
struct netvsc_device_info device_info;
int limit = ETH_DATA_LEN;
u32 num_chn;
num_chn = nvdev->num_chn;
- nvdev->start_remove = true;
+ ndevctx->start_remove = true;
rndis_filter_device_remove(hdev);
ndev->mtu = mtu;
- ndevctx->device_ctx = hdev;
- hv_set_drvdata(hdev, ndev);
-
memset(&device_info, 0, sizeof(device_info));
device_info.ring_size = ring_size;
device_info.num_chn = num_chn;
out:
netvsc_open(ndev);
+ ndevctx->start_remove = false;
+
+ /* We may have missed link change notifications */
+ schedule_delayed_work(&ndevctx->dwork, 0);
return ret;
}
*/
static void netvsc_link_change(struct work_struct *w)
{
- struct net_device_context *ndev_ctx;
- struct net_device *net;
+ struct net_device_context *ndev_ctx =
+ container_of(w, struct net_device_context, dwork.work);
+ struct hv_device *device_obj = ndev_ctx->device_ctx;
+ struct net_device *net = hv_get_drvdata(device_obj);
struct netvsc_device *net_device;
struct rndis_device *rdev;
struct netvsc_reconfig *event = NULL;
bool notify = false, reschedule = false;
unsigned long flags, next_reconfig, delay;
- ndev_ctx = container_of(w, struct net_device_context, dwork.work);
- net_device = hv_get_drvdata(ndev_ctx->device_ctx);
+ rtnl_lock();
+ if (ndev_ctx->start_remove)
+ goto out_unlock;
+
+ net_device = ndev_ctx->nvdev;
rdev = net_device->extension;
- net = net_device->ndev;
next_reconfig = ndev_ctx->last_reconfig + LINKCHANGE_INT;
if (time_is_after_jiffies(next_reconfig)) {
delay = next_reconfig - jiffies;
delay = delay < LINKCHANGE_INT ? delay : LINKCHANGE_INT;
schedule_delayed_work(&ndev_ctx->dwork, delay);
- return;
+ goto out_unlock;
}
ndev_ctx->last_reconfig = jiffies;
spin_unlock_irqrestore(&ndev_ctx->lock, flags);
if (!event)
- return;
-
- rtnl_lock();
+ goto out_unlock;
switch (event->event) {
/* Only the following events are possible due to the check in
*/
if (reschedule)
schedule_delayed_work(&ndev_ctx->dwork, LINKCHANGE_INT);
+
+ return;
+
+out_unlock:
+ rtnl_unlock();
}
static void netvsc_free_netdev(struct net_device *netdev)
atomic_dec(&gwrk->netvsc_dev->vf_use_cnt);
}
-static struct netvsc_device *get_netvsc_device(char *mac)
+static struct net_device *get_netvsc_net_device(char *mac)
{
- struct net_device *dev;
- struct net_device_context *netvsc_ctx = NULL;
+ struct net_device *dev, *found = NULL;
int rtnl_locked;
rtnl_locked = rtnl_trylock();
if (memcmp(dev->dev_addr, mac, ETH_ALEN) == 0) {
if (dev->netdev_ops != &device_ops)
continue;
- netvsc_ctx = netdev_priv(dev);
+ found = dev;
break;
}
}
if (rtnl_locked)
rtnl_unlock();
- if (netvsc_ctx == NULL)
- return NULL;
-
- return hv_get_drvdata(netvsc_ctx->device_ctx);
+ return found;
}
static int netvsc_register_vf(struct net_device *vf_netdev)
{
+ struct net_device *ndev;
+ struct net_device_context *net_device_ctx;
struct netvsc_device *netvsc_dev;
const struct ethtool_ops *eth_ops = vf_netdev->ethtool_ops;
* associate with the VF interface. If we don't find a matching
* synthetic interface, move on.
*/
- netvsc_dev = get_netvsc_device(vf_netdev->dev_addr);
+ ndev = get_netvsc_net_device(vf_netdev->dev_addr);
+ if (!ndev)
+ return NOTIFY_DONE;
+
+ net_device_ctx = netdev_priv(ndev);
+ netvsc_dev = net_device_ctx->nvdev;
if (netvsc_dev == NULL)
return NOTIFY_DONE;
- netdev_info(netvsc_dev->ndev, "VF registering: %s\n", vf_netdev->name);
+ netdev_info(ndev, "VF registering: %s\n", vf_netdev->name);
/*
* Take a reference on the module.
*/
static int netvsc_vf_up(struct net_device *vf_netdev)
{
+ struct net_device *ndev;
struct netvsc_device *netvsc_dev;
const struct ethtool_ops *eth_ops = vf_netdev->ethtool_ops;
struct net_device_context *net_device_ctx;
if (eth_ops == ðtool_ops)
return NOTIFY_DONE;
- netvsc_dev = get_netvsc_device(vf_netdev->dev_addr);
+ ndev = get_netvsc_net_device(vf_netdev->dev_addr);
+ if (!ndev)
+ return NOTIFY_DONE;
+
+ net_device_ctx = netdev_priv(ndev);
+ netvsc_dev = net_device_ctx->nvdev;
if ((netvsc_dev == NULL) || (netvsc_dev->vf_netdev == NULL))
return NOTIFY_DONE;
- netdev_info(netvsc_dev->ndev, "VF up: %s\n", vf_netdev->name);
- net_device_ctx = netdev_priv(netvsc_dev->ndev);
+ netdev_info(ndev, "VF up: %s\n", vf_netdev->name);
netvsc_dev->vf_inject = true;
/*
/*
* notify the host to switch the data path.
*/
- netvsc_switch_datapath(netvsc_dev, true);
- netdev_info(netvsc_dev->ndev, "Data path switched to VF: %s\n",
- vf_netdev->name);
+ netvsc_switch_datapath(ndev, true);
+ netdev_info(ndev, "Data path switched to VF: %s\n", vf_netdev->name);
- netif_carrier_off(netvsc_dev->ndev);
+ netif_carrier_off(ndev);
/*
* Now notify peers. We are scheduling work to
static int netvsc_vf_down(struct net_device *vf_netdev)
{
+ struct net_device *ndev;
struct netvsc_device *netvsc_dev;
struct net_device_context *net_device_ctx;
const struct ethtool_ops *eth_ops = vf_netdev->ethtool_ops;
if (eth_ops == ðtool_ops)
return NOTIFY_DONE;
- netvsc_dev = get_netvsc_device(vf_netdev->dev_addr);
+ ndev = get_netvsc_net_device(vf_netdev->dev_addr);
+ if (!ndev)
+ return NOTIFY_DONE;
+
+ net_device_ctx = netdev_priv(ndev);
+ netvsc_dev = net_device_ctx->nvdev;
if ((netvsc_dev == NULL) || (netvsc_dev->vf_netdev == NULL))
return NOTIFY_DONE;
- netdev_info(netvsc_dev->ndev, "VF down: %s\n", vf_netdev->name);
- net_device_ctx = netdev_priv(netvsc_dev->ndev);
+ netdev_info(ndev, "VF down: %s\n", vf_netdev->name);
netvsc_dev->vf_inject = false;
/*
* Wait for currently active users to
while (atomic_read(&netvsc_dev->vf_use_cnt) != 0)
udelay(50);
- netvsc_switch_datapath(netvsc_dev, false);
- netdev_info(netvsc_dev->ndev, "Data path switched from VF: %s\n",
- vf_netdev->name);
+ netvsc_switch_datapath(ndev, false);
+ netdev_info(ndev, "Data path switched from VF: %s\n", vf_netdev->name);
rndis_filter_close(net_device_ctx->device_ctx);
- netif_carrier_on(netvsc_dev->ndev);
+ netif_carrier_on(ndev);
/*
* Notify peers.
*/
atomic_inc(&netvsc_dev->vf_use_cnt);
- net_device_ctx->gwrk.netdev = netvsc_dev->ndev;
+ net_device_ctx->gwrk.netdev = ndev;
net_device_ctx->gwrk.netvsc_dev = netvsc_dev;
schedule_work(&net_device_ctx->gwrk.dwrk);
static int netvsc_unregister_vf(struct net_device *vf_netdev)
{
+ struct net_device *ndev;
struct netvsc_device *netvsc_dev;
const struct ethtool_ops *eth_ops = vf_netdev->ethtool_ops;
+ struct net_device_context *net_device_ctx;
if (eth_ops == ðtool_ops)
return NOTIFY_DONE;
- netvsc_dev = get_netvsc_device(vf_netdev->dev_addr);
+ ndev = get_netvsc_net_device(vf_netdev->dev_addr);
+ if (!ndev)
+ return NOTIFY_DONE;
+
+ net_device_ctx = netdev_priv(ndev);
+ netvsc_dev = net_device_ctx->nvdev;
if (netvsc_dev == NULL)
return NOTIFY_DONE;
- netdev_info(netvsc_dev->ndev, "VF unregistering: %s\n",
- vf_netdev->name);
+ netdev_info(ndev, "VF unregistering: %s\n", vf_netdev->name);
netvsc_dev->vf_netdev = NULL;
module_put(THIS_MODULE);
}
hv_set_drvdata(dev, net);
+
+ net_device_ctx->start_remove = false;
+
INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_link_change);
INIT_WORK(&net_device_ctx->work, do_set_multicast);
INIT_WORK(&net_device_ctx->gwrk.dwrk, netvsc_notify_peers);
}
memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN);
- nvdev = hv_get_drvdata(dev);
+ nvdev = net_device_ctx->nvdev;
netif_set_real_num_tx_queues(net, nvdev->num_chn);
netif_set_real_num_rx_queues(net, nvdev->num_chn);
struct net_device_context *ndev_ctx;
struct netvsc_device *net_device;
- net_device = hv_get_drvdata(dev);
- net = net_device->ndev;
+ net = hv_get_drvdata(dev);
if (net == NULL) {
dev_err(&dev->device, "No net device to remove\n");
return 0;
}
- net_device->start_remove = true;
ndev_ctx = netdev_priv(net);
+ net_device = ndev_ctx->nvdev;
+
+ ndev_ctx->start_remove = true;
+
cancel_delayed_work_sync(&ndev_ctx->dwork);
cancel_work_sync(&ndev_ctx->work);
*/
rndis_filter_device_remove(dev);
+ hv_set_drvdata(dev, NULL);
+
netvsc_free_netdev(net);
return 0;
}
projects / cascardo / linux.git / blobdiff