/* we hold the RTNL here so can safely walk the list */
list_for_each_entry(sdata, &local->interfaces, list) {
- if (sdata->dev != dev && netif_running(sdata->dev)) {
+ if (netif_running(sdata->dev)) {
res = 0;
break;
}
/* we hold the RTNL here so can safely walk the list */
list_for_each_entry(sdata, &local->interfaces, list)
- if (sdata->dev != dev && netif_running(sdata->dev))
+ if (netif_running(sdata->dev))
dev_close(sdata->dev);
return 0;
/* FIX: what would be proper limits for MTU?
* This interface uses 802.3 frames. */
if (new_mtu < 256 ||
- new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) {
- printk(KERN_WARNING "%s: invalid MTU %d\n",
- dev->name, new_mtu);
+ new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) {
return -EINVAL;
}
{
struct ieee80211_sub_if_data *sdata, *nsdata;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
struct ieee80211_if_init_conf conf;
+ u32 changed = 0;
int res;
bool need_hw_reconfig = 0;
- struct sta_info *sta;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
list_for_each_entry(nsdata, &local->interfaces, list) {
struct net_device *ndev = nsdata->dev;
- if (ndev != dev && ndev != local->mdev && netif_running(ndev)) {
+ if (ndev != dev && netif_running(ndev)) {
/*
* Allow only a single IBSS interface to be up at any
* time. This is restricted because beacon distribution
nsdata->vif.type == IEEE80211_IF_TYPE_IBSS)
return -EBUSY;
- /*
- * Disallow multiple IBSS/STA mode interfaces.
- *
- * This is a technical restriction, it is possible although
- * most likely not IEEE 802.11 compliant to have multiple
- * STAs with just a single hardware (the TSF timer will not
- * be adjusted properly.)
- *
- * However, because mac80211 uses the master device's BSS
- * information for each STA/IBSS interface, doing this will
- * currently corrupt that BSS information completely, unless,
- * a not very useful case, both STAs are associated to the
- * same BSS.
- *
- * To remove this restriction, the BSS information needs to
- * be embedded in the STA/IBSS mode sdata instead of using
- * the master device's BSS structure.
- */
- if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) &&
- (nsdata->vif.type == IEEE80211_IF_TYPE_STA ||
- nsdata->vif.type == IEEE80211_IF_TYPE_IBSS))
- return -EBUSY;
-
/*
* The remaining checks are only performed for interfaces
* with the same MAC address.
*/
if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN &&
nsdata->vif.type == IEEE80211_IF_TYPE_AP)
- sdata->u.vlan.ap = nsdata;
+ sdata->bss = &nsdata->u.ap;
}
}
return -ENOLINK;
break;
case IEEE80211_IF_TYPE_VLAN:
- if (!sdata->u.vlan.ap)
+ if (!sdata->bss)
return -ENOLINK;
+ list_add(&sdata->u.vlan.list, &sdata->bss->vlans);
break;
case IEEE80211_IF_TYPE_AP:
+ sdata->bss = &sdata->u.ap;
+ break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_MNTR:
case IEEE80211_IF_TYPE_IBSS:
if (local->ops->start)
res = local->ops->start(local_to_hw(local));
if (res)
- return res;
+ goto err_del_bss;
need_hw_reconfig = 1;
ieee80211_led_radio(local, local->hw.conf.radio_enabled);
}
switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_VLAN:
- list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
/* no need to tell driver */
break;
case IEEE80211_IF_TYPE_MNTR:
goto err_stop;
ieee80211_if_config(dev);
- ieee80211_reset_erp_info(dev);
+ changed |= ieee80211_reset_erp_info(dev);
+ ieee80211_bss_info_change_notify(sdata, changed);
ieee80211_enable_keys(sdata);
if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
err_stop:
if (!local->open_count && local->ops->stop)
local->ops->stop(local_to_hw(local));
+ err_del_bss:
+ sdata->bss = NULL;
+ if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
+ list_del(&sdata->u.vlan.list);
return res;
}
switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_VLAN:
list_del(&sdata->u.vlan.list);
- sdata->u.vlan.ap = NULL;
/* no need to tell driver */
break;
case IEEE80211_IF_TYPE_MNTR:
local->sta_hw_scanning = 0;
}
- flush_workqueue(local->hw.workqueue);
-
sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
kfree(sdata->u.sta.extra_ie);
sdata->u.sta.extra_ie = NULL;
local->ops->remove_interface(local_to_hw(local), &conf);
}
+ sdata->bss = NULL;
+
if (local->open_count == 0) {
if (netif_running(local->mdev))
dev_close(local->mdev);
ieee80211_led_radio(local, 0);
+ flush_workqueue(local->hw.workqueue);
+
tasklet_disable(&local->tx_pending_tasklet);
tasklet_disable(&local->tasklet);
}
int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
{
struct ieee80211_local *local = hw_to_local(hw);
+ struct netdev_queue *txq;
struct sta_info *sta;
struct ieee80211_sub_if_data *sdata;
u16 start_seq_num = 0;
sta = sta_info_get(local, ra);
if (!sta) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Could not find the station\n");
+#endif
ret = -ENOENT;
goto exit;
}
sta->ampdu_mlme.tid_tx[tid] =
kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
if (!sta->ampdu_mlme.tid_tx[tid]) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
if (net_ratelimit())
printk(KERN_ERR "allocate tx mlme to tid %d failed\n",
tid);
+#endif
ret = -ENOMEM;
goto err_unlock_sta;
}
/* ensure that TX flow won't interrupt us
* until the end of the call to requeue function */
- spin_lock_bh(&local->mdev->queue_lock);
+ txq = &local->mdev->tx_queue;
+ spin_lock_bh(&txq->lock);
/* create a new queue for this aggregation */
ret = ieee80211_ht_agg_queue_add(local, sta, tid);
/* Will put all the packets in the new SW queue */
ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
- spin_unlock_bh(&local->mdev->queue_lock);
+ spin_unlock_bh(&txq->lock);
spin_unlock_bh(&sta->lock);
/* send an addBA request */
sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires =
jiffies + ADDBA_RESP_INTERVAL;
add_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
+#endif
goto exit;
err_unlock_queue:
kfree(sta->ampdu_mlme.tid_tx[tid]);
sta->ampdu_mlme.tid_tx[tid] = NULL;
- spin_unlock_bh(&local->mdev->queue_lock);
+ spin_unlock_bh(&txq->lock);
ret = -EBUSY;
err_unlock_sta:
spin_unlock_bh(&sta->lock);
DECLARE_MAC_BUF(mac);
if (tid >= STA_TID_NUM) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
tid, STA_TID_NUM);
+#endif
return;
}
sta = sta_info_get(local, ra);
if (!sta) {
rcu_read_unlock();
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Could not find station: %s\n",
print_mac(mac, ra));
+#endif
return;
}
spin_lock_bh(&sta->lock);
if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
*state);
+#endif
spin_unlock_bh(&sta->lock);
rcu_read_unlock();
return;
*state |= HT_ADDBA_DRV_READY_MSK;
if (*state == HT_AGG_STATE_OPERATIONAL) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
+#endif
ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
}
spin_unlock_bh(&sta->lock);
void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
{
struct ieee80211_local *local = hw_to_local(hw);
+ struct netdev_queue *txq;
struct sta_info *sta;
u8 *state;
int agg_queue;
DECLARE_MAC_BUF(mac);
if (tid >= STA_TID_NUM) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
tid, STA_TID_NUM);
+#endif
return;
}
rcu_read_lock();
sta = sta_info_get(local, ra);
if (!sta) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Could not find station: %s\n",
print_mac(mac, ra));
+#endif
rcu_read_unlock();
return;
}
* ieee80211_stop_tx_ba_session will let only
* one stop call to pass through per sta/tid */
if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
+#endif
rcu_read_unlock();
return;
}
/* avoid ordering issues: we are the only one that can modify
* the content of the qdiscs */
- spin_lock_bh(&local->mdev->queue_lock);
+ txq = &local->mdev->tx_queue;
+ spin_lock_bh(&txq->lock);
/* remove the queue for this aggregation */
ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
- spin_unlock_bh(&local->mdev->queue_lock);
+ spin_unlock_bh(&txq->lock);
/* we just requeued the all the frames that were in the removed
- * queue, and since we might miss a softirq we do netif_schedule.
+ * queue, and since we might miss a softirq we do netif_schedule_queue.
* ieee80211_wake_queue is not used here as this queue is not
* necessarily stopped */
- netif_schedule(local->mdev);
+ netif_schedule_queue(txq);
spin_lock_bh(&sta->lock);
*state = HT_AGG_STATE_IDLE;
sta->ampdu_mlme.addba_req_num[tid] = 0;
struct sk_buff *skb = dev_alloc_skb(0);
if (unlikely(!skb)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
if (net_ratelimit())
printk(KERN_WARNING "%s: Not enough memory, "
"dropping start BA session", skb->dev->name);
+#endif
return;
}
ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
struct sk_buff *skb = dev_alloc_skb(0);
if (unlikely(!skb)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
if (net_ratelimit())
printk(KERN_WARNING "%s: Not enough memory, "
"dropping stop BA session", skb->dev->name);
+#endif
return;
}
ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
.cache_update = eth_header_cache_update,
};
-/* Must not be called for mdev */
void ieee80211_if_setup(struct net_device *dev)
{
ether_setup(dev);
dev->change_mtu = ieee80211_change_mtu;
dev->open = ieee80211_open;
dev->stop = ieee80211_stop;
- dev->destructor = ieee80211_if_free;
+ dev->destructor = free_netdev;
}
/* everything else */
changed);
}
-void ieee80211_reset_erp_info(struct net_device *dev)
+u32 ieee80211_reset_erp_info(struct net_device *dev)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
sdata->bss_conf.use_cts_prot = 0;
sdata->bss_conf.use_short_preamble = 0;
- ieee80211_bss_info_change_notify(sdata,
- BSS_CHANGED_ERP_CTS_PROT |
- BSS_CHANGED_ERP_PREAMBLE);
+ return BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_ERP_PREAMBLE;
}
void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
ra_tid->ra, ra_tid->tid);
dev_kfree_skb(skb);
break ;
- default: /* should never get here! */
- printk(KERN_ERR "%s: Unknown message type (%d)\n",
- wiphy_name(local->hw.wiphy), skb->pkt_type);
+ default:
+ WARN_ON(1);
dev_kfree_skb(skb);
break;
}
return;
}
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (net_ratelimit())
printk(KERN_DEBUG "%s: dropped TX filtered frame, "
"queue_len=%d PS=%d @%lu\n",
wiphy_name(local->hw.wiphy),
skb_queue_len(&sta->tx_filtered),
!!test_sta_flags(sta, WLAN_STA_PS), jiffies);
+#endif
dev_kfree_skb(skb);
}
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
u16 frag, type;
+ __le16 fc;
struct ieee80211_tx_status_rtap_hdr *rthdr;
struct ieee80211_sub_if_data *sdata;
struct net_device *prev_dev = NULL;
+ struct sta_info *sta;
rcu_read_lock();
if (info->status.excessive_retries) {
- struct sta_info *sta;
sta = sta_info_get(local, hdr->addr1);
if (sta) {
if (test_sta_flags(sta, WLAN_STA_PS)) {
}
}
+ fc = hdr->frame_control;
+
+ if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) &&
+ (ieee80211_is_data_qos(fc))) {
+ u16 tid, ssn;
+ u8 *qc;
+ sta = sta_info_get(local, hdr->addr1);
+ if (sta) {
+ qc = ieee80211_get_qos_ctl(hdr);
+ tid = qc[0] & 0xf;
+ ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10)
+ & IEEE80211_SCTL_SEQ);
+ ieee80211_send_bar(sta->sdata->dev, hdr->addr1,
+ tid, ssn);
+ }
+ }
+
if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
- struct sta_info *sta;
sta = sta_info_get(local, hdr->addr1);
if (sta) {
ieee80211_handle_filtered_frame(local, sta, skb);
int result;
enum ieee80211_band band;
struct net_device *mdev;
- struct ieee80211_sub_if_data *sdata;
+ struct wireless_dev *mwdev;
/*
* generic code guarantees at least one band,
hw->ampdu_queues = 0;
#endif
- /* for now, mdev needs sub_if_data :/ */
- mdev = alloc_netdev_mq(sizeof(struct ieee80211_sub_if_data),
+ mdev = alloc_netdev_mq(sizeof(struct wireless_dev),
"wmaster%d", ether_setup,
ieee80211_num_queues(hw));
if (!mdev)
if (ieee80211_num_queues(hw) > 1)
mdev->features |= NETIF_F_MULTI_QUEUE;
- sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
- mdev->ieee80211_ptr = &sdata->wdev;
- sdata->wdev.wiphy = local->hw.wiphy;
+ mwdev = netdev_priv(mdev);
+ mdev->ieee80211_ptr = mwdev;
+ mwdev->wiphy = local->hw.wiphy;
local->mdev = mdev;
- ieee80211_rx_bss_list_init(mdev);
+ ieee80211_rx_bss_list_init(local);
mdev->hard_start_xmit = ieee80211_master_start_xmit;
mdev->open = ieee80211_master_open;
mdev->header_ops = &ieee80211_header_ops;
mdev->set_multicast_list = ieee80211_master_set_multicast_list;
- sdata->vif.type = IEEE80211_IF_TYPE_AP;
- sdata->dev = mdev;
- sdata->local = local;
- sdata->u.ap.force_unicast_rateidx = -1;
- sdata->u.ap.max_ratectrl_rateidx = -1;
- ieee80211_if_sdata_init(sdata);
-
- /* no RCU needed since we're still during init phase */
- list_add_tail(&sdata->list, &local->interfaces);
-
name = wiphy_dev(local->hw.wiphy)->driver->name;
- local->hw.workqueue = create_singlethread_workqueue(name);
+ local->hw.workqueue = create_freezeable_workqueue(name);
if (!local->hw.workqueue) {
result = -ENOMEM;
goto fail_workqueue;
if (result < 0)
goto fail_dev;
- ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
- ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
-
result = ieee80211_init_rate_ctrl_alg(local,
hw->rate_control_algorithm);
if (result < 0) {
ieee80211_install_qdisc(local->mdev);
/* add one default STA interface */
- result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
+ result = ieee80211_if_add(local, "wlan%d", NULL,
IEEE80211_IF_TYPE_STA, NULL);
if (result)
printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
wiphy_name(local->hw.wiphy));
- local->reg_state = IEEE80211_DEV_REGISTERED;
rtnl_unlock();
ieee80211_led_init(local);
fail_wep:
rate_control_deinitialize(local);
fail_rate:
- ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
unregister_netdevice(local->mdev);
local->mdev = NULL;
fail_dev:
debugfs_hw_del(local);
destroy_workqueue(local->hw.workqueue);
fail_workqueue:
- if (local->mdev != NULL) {
- ieee80211_if_free(local->mdev);
- local->mdev = NULL;
- }
+ if (local->mdev)
+ free_netdev(local->mdev);
fail_mdev_alloc:
wiphy_unregister(local->hw.wiphy);
return result;
void ieee80211_unregister_hw(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata, *tmp;
tasklet_kill(&local->tx_pending_tasklet);
tasklet_kill(&local->tasklet);
rtnl_lock();
- BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
-
- local->reg_state = IEEE80211_DEV_UNREGISTERED;
-
/*
* At this point, interface list manipulations are fine
* because the driver cannot be handing us frames any
* more and the tasklet is killed.
*/
- /*
- * First, we remove all non-master interfaces. Do this because they
- * may have bss pointer dependency on the master, and when we free
- * the master these would be freed as well, breaking our list
- * iteration completely.
- */
- list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
- if (sdata->dev == local->mdev)
- continue;
- list_del(&sdata->list);
- __ieee80211_if_del(local, sdata);
- }
+ /* First, we remove all virtual interfaces. */
+ ieee80211_remove_interfaces(local);
/* then, finally, remove the master interface */
- __ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev));
+ unregister_netdevice(local->mdev);
rtnl_unlock();
- ieee80211_rx_bss_list_deinit(local->mdev);
+ ieee80211_rx_bss_list_deinit(local);
ieee80211_clear_tx_pending(local);
sta_info_stop(local);
rate_control_deinitialize(local);
wiphy_unregister(local->hw.wiphy);
ieee80211_wep_free(local);
ieee80211_led_exit(local);
- ieee80211_if_free(local->mdev);
- local->mdev = NULL;
+ free_netdev(local->mdev);
}
EXPORT_SYMBOL(ieee80211_unregister_hw);
projects / linux-2.6 / blobdiff