* it can be sent out.
* @IEEE80211_TX_INTFL_RETRIED: completely internal to mac80211,
* used to indicate that a frame was already retried due to PS
+ * @IEEE80211_TX_INTFL_DONT_ENCRYPT: completely internal to mac80211,
+ * used to indicate frame should not be encrypted
*/
enum mac80211_tx_control_flags {
IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0),
IEEE80211_TX_INTFL_RCALGO = BIT(13),
IEEE80211_TX_INTFL_NEED_TXPROCESSING = BIT(14),
IEEE80211_TX_INTFL_RETRIED = BIT(15),
+ IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(16),
};
/**
if (!skb_queue_empty(&sta->ampdu_mlme.tid_tx[tid]->pending)) {
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
- /* mark queue as pending, it is stopped already */
- __set_bit(IEEE80211_QUEUE_STOP_REASON_PENDING,
- &local->queue_stop_reasons[queue]);
/* copy over remaining packets */
skb_queue_splice_tail_init(
&sta->ampdu_mlme.tid_tx[tid]->pending,
for (q = 0; q < local->hw.queues; q++)
res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
local->queue_stop_reasons[q],
- __netif_subqueue_stopped(local->mdev, q));
+ skb_queue_len(&local->pending[q]));
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
return simple_read_from_buffer(user_buf, count, ppos, buf, res);
IEEE80211_QUEUE_STOP_REASON_CSA,
IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
IEEE80211_QUEUE_STOP_REASON_SUSPEND,
- IEEE80211_QUEUE_STOP_REASON_PENDING,
IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
};
-struct ieee80211_master_priv {
- struct ieee80211_local *local;
-};
-
struct ieee80211_local {
/* embed the driver visible part.
* don't cast (use the static inlines below), but we keep
/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
spinlock_t queue_stop_reason_lock;
- struct net_device *mdev; /* wmaster# - "master" 802.11 device */
int open_count;
int monitors, cooked_mntrs;
/* number of interfaces with corresponding FIF_ flags */
int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
unsigned int filter_flags; /* FIF_* */
struct iw_statistics wstats;
+
+ /* protects the aggregated multicast list and filter calls */
+ spinlock_t filter_lock;
+
+ /* aggregated multicast list */
+ struct dev_addr_list *mc_list;
+ int mc_count;
+
bool tim_in_locked_section; /* see ieee80211_beacon_get() */
/*
static inline struct ieee80211_sub_if_data *
IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- BUG_ON(!local || local->mdev == dev);
-
return netdev_priv(dev);
}
/* tx handling */
void ieee80211_clear_tx_pending(struct ieee80211_local *local);
void ieee80211_tx_pending(unsigned long data);
-int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
ETH_ALEN);
}
- if (compare_ether_addr(null_addr, local->mdev->dev_addr) == 0)
- memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr,
- ETH_ALEN);
-
/*
* Validate the MAC address for this device.
*/
if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
local->fif_other_bss++;
- netif_addr_lock_bh(local->mdev);
+ spin_lock_bh(&local->filter_lock);
ieee80211_configure_filter(local);
- netif_addr_unlock_bh(local->mdev);
+ spin_unlock_bh(&local->filter_lock);
break;
default:
conf.vif = &sdata->vif;
if (ieee80211_vif_is_mesh(&sdata->vif)) {
local->fif_other_bss++;
- netif_addr_lock_bh(local->mdev);
+ spin_lock_bh(&local->filter_lock);
ieee80211_configure_filter(local);
- netif_addr_unlock_bh(local->mdev);
+ spin_unlock_bh(&local->filter_lock);
ieee80211_start_mesh(sdata);
}
}
if (local->open_count == 0) {
- res = dev_open(local->mdev);
- WARN_ON(res);
- if (res)
- goto err_del_interface;
tasklet_enable(&local->tx_pending_tasklet);
tasklet_enable(&local->tasklet);
}
if (sdata->flags & IEEE80211_SDATA_PROMISC)
atomic_dec(&local->iff_promiscs);
- dev_mc_unsync(local->mdev, dev);
+ netif_addr_lock_bh(dev);
+ spin_lock_bh(&local->filter_lock);
+ __dev_addr_unsync(&local->mc_list, &local->mc_count,
+ &dev->mc_list, &dev->mc_count);
+ ieee80211_configure_filter(local);
+ spin_unlock_bh(&local->filter_lock);
+ netif_addr_unlock_bh(dev);
+
del_timer_sync(&local->dynamic_ps_timer);
cancel_work_sync(&local->dynamic_ps_enable_work);
if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
local->fif_other_bss--;
- netif_addr_lock_bh(local->mdev);
+ spin_lock_bh(&local->filter_lock);
ieee80211_configure_filter(local);
- netif_addr_unlock_bh(local->mdev);
+ spin_unlock_bh(&local->filter_lock);
break;
case NL80211_IFTYPE_STATION:
del_timer_sync(&sdata->u.mgd.chswitch_timer);
local->fif_other_bss--;
atomic_dec(&local->iff_allmultis);
- netif_addr_lock_bh(local->mdev);
+ spin_lock_bh(&local->filter_lock);
ieee80211_configure_filter(local);
- netif_addr_unlock_bh(local->mdev);
+ spin_unlock_bh(&local->filter_lock);
ieee80211_stop_mesh(sdata);
}
ieee80211_recalc_ps(local, -1);
if (local->open_count == 0) {
- if (netif_running(local->mdev))
- dev_close(local->mdev);
-
drv_stop(local);
ieee80211_led_radio(local, false);
atomic_dec(&local->iff_promiscs);
sdata->flags ^= IEEE80211_SDATA_PROMISC;
}
-
- dev_mc_sync(local->mdev, dev);
+ spin_lock_bh(&local->filter_lock);
+ __dev_addr_sync(&local->mc_list, &local->mc_count,
+ &dev->mc_list, &dev->mc_count);
+ ieee80211_configure_filter(local);
+ spin_unlock_bh(&local->filter_lock);
}
/*
new_flags |= (1<<31);
drv_configure_filter(local, changed_flags, &new_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
+ local->mc_count,
+ local->mc_list);
WARN_ON(new_flags & (1<<31));
local->filter_flags = new_flags & ~(1<<31);
}
-/* master interface */
-
-static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr)
-{
- memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
- return ETH_ALEN;
-}
-
-static const struct header_ops ieee80211_header_ops = {
- .create = eth_header,
- .parse = header_parse_80211,
- .rebuild = eth_rebuild_header,
- .cache = eth_header_cache,
- .cache_update = eth_header_cache_update,
-};
-
-static int ieee80211_master_open(struct net_device *dev)
-{
- struct ieee80211_master_priv *mpriv = netdev_priv(dev);
- struct ieee80211_local *local = mpriv->local;
- struct ieee80211_sub_if_data *sdata;
- int res = -EOPNOTSUPP;
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(sdata, &local->interfaces, list) {
- if (netif_running(sdata->dev)) {
- res = 0;
- break;
- }
- }
-
- if (res)
- return res;
-
- netif_tx_start_all_queues(local->mdev);
-
- return 0;
-}
-
-static int ieee80211_master_stop(struct net_device *dev)
-{
- struct ieee80211_master_priv *mpriv = netdev_priv(dev);
- struct ieee80211_local *local = mpriv->local;
- struct ieee80211_sub_if_data *sdata;
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(sdata, &local->interfaces, list)
- if (netif_running(sdata->dev))
- dev_close(sdata->dev);
-
- return 0;
-}
-
-static void ieee80211_master_set_multicast_list(struct net_device *dev)
-{
- struct ieee80211_master_priv *mpriv = netdev_priv(dev);
- struct ieee80211_local *local = mpriv->local;
-
- ieee80211_configure_filter(local);
-}
-
int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
{
struct ieee80211_channel *chan, *scan_chan;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
int tmp;
- skb->dev = local->mdev;
skb->pkt_type = IEEE80211_TX_STATUS_MSG;
skb_queue_tail(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS ?
&local->skb_queue : &local->skb_queue_unreliable, skb);
mutex_init(&local->scan_mtx);
spin_lock_init(&local->key_lock);
-
+ spin_lock_init(&local->filter_lock);
spin_lock_init(&local->queue_stop_reason_lock);
INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
}
EXPORT_SYMBOL(ieee80211_alloc_hw);
-static const struct net_device_ops ieee80211_master_ops = {
- .ndo_start_xmit = ieee80211_master_start_xmit,
- .ndo_open = ieee80211_master_open,
- .ndo_stop = ieee80211_master_stop,
- .ndo_set_multicast_list = ieee80211_master_set_multicast_list,
- .ndo_select_queue = ieee80211_select_queue,
-};
-
-static void ieee80211_master_setup(struct net_device *mdev)
-{
- mdev->type = ARPHRD_IEEE80211;
- mdev->netdev_ops = &ieee80211_master_ops;
- mdev->header_ops = &ieee80211_header_ops;
- mdev->tx_queue_len = 1000;
- mdev->addr_len = ETH_ALEN;
-}
-
int ieee80211_register_hw(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
int result;
enum ieee80211_band band;
- struct net_device *mdev;
- struct ieee80211_master_priv *mpriv;
int channels, i, j, max_bitrates;
bool supp_ht;
static const u32 cipher_suites[] = {
if (hw->queues > IEEE80211_MAX_QUEUES)
hw->queues = IEEE80211_MAX_QUEUES;
- mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv),
- "wmaster%d", ieee80211_master_setup,
- hw->queues);
- if (!mdev)
- goto fail_mdev_alloc;
-
- mpriv = netdev_priv(mdev);
- mpriv->local = local;
- local->mdev = mdev;
-
local->hw.workqueue =
create_singlethread_workqueue(wiphy_name(local->hw.wiphy));
if (!local->hw.workqueue) {
}
rtnl_lock();
- result = dev_alloc_name(local->mdev, local->mdev->name);
- if (result < 0)
- goto fail_dev;
-
- memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
- SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy));
- local->mdev->features |= NETIF_F_NETNS_LOCAL;
-
- result = register_netdevice(local->mdev);
- if (result < 0)
- goto fail_dev;
result = ieee80211_init_rate_ctrl_alg(local,
hw->rate_control_algorithm);
ieee80211_led_exit(local);
ieee80211_remove_interfaces(local);
fail_rate:
- unregister_netdevice(local->mdev);
- local->mdev = NULL;
- fail_dev:
rtnl_unlock();
ieee80211_wep_free(local);
fail_wep:
debugfs_hw_del(local);
destroy_workqueue(local->hw.workqueue);
fail_workqueue:
- if (local->mdev)
- free_netdev(local->mdev);
- fail_mdev_alloc:
wiphy_unregister(local->hw.wiphy);
fail_wiphy_register:
kfree(local->int_scan_req.channels);
* because the driver cannot be handing us frames any
* more and the tasklet is killed.
*/
-
- /* First, we remove all virtual interfaces. */
ieee80211_remove_interfaces(local);
- /* then, finally, remove the master interface */
- unregister_netdevice(local->mdev);
-
rtnl_unlock();
ieee80211_clear_tx_pending(local);
wiphy_unregister(local->hw.wiphy);
ieee80211_wep_free(local);
ieee80211_led_exit(local);
- free_netdev(local->mdev);
kfree(local->int_scan_req.channels);
}
EXPORT_SYMBOL(ieee80211_unregister_hw);
struct rate_control_ref *ref, *old;
ASSERT_RTNL();
- if (local->open_count || netif_running(local->mdev))
+ if (local->open_count)
return -EBUSY;
ref = rate_control_alloc(name, local);
struct ieee80211s_hdr *mesh_hdr;
unsigned int hdrlen;
struct sk_buff *skb = rx->skb, *fwd_skb;
+ struct ieee80211_local *local = rx->local;
hdr = (struct ieee80211_hdr *) skb->data;
hdrlen = ieee80211_hdrlen(hdr->frame_control);
dropped_frames_ttl);
else {
struct ieee80211_hdr *fwd_hdr;
+ struct ieee80211_tx_info *info;
+
fwd_skb = skb_copy(skb, GFP_ATOMIC);
if (!fwd_skb && net_ratelimit())
*/
memcpy(fwd_hdr->addr1, fwd_hdr->addr2, ETH_ALEN);
memcpy(fwd_hdr->addr2, rx->dev->dev_addr, ETH_ALEN);
- fwd_skb->dev = rx->local->mdev;
+ info = IEEE80211_SKB_CB(fwd_skb);
+ memset(info, 0, sizeof(*info));
+ info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
fwd_skb->iif = rx->dev->ifindex;
- dev_queue_xmit(fwd_skb);
+ ieee80211_select_queue(local, fwd_skb);
+ ieee80211_add_pending_skb(local, fwd_skb);
}
}
return RX_DROP_MONITOR;
}
-static void ieee80211_rx_michael_mic_report(struct net_device *dev,
- struct ieee80211_hdr *hdr,
+static void ieee80211_rx_michael_mic_report(struct ieee80211_hdr *hdr,
struct ieee80211_rx_data *rx)
{
int keyidx;
}
if ((status->flag & RX_FLAG_MMIC_ERROR)) {
- ieee80211_rx_michael_mic_report(local->mdev, hdr, &rx);
+ ieee80211_rx_michael_mic_report(hdr, &rx);
return;
}
BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb));
- skb->dev = local->mdev;
skb->pkt_type = IEEE80211_RX_MSG;
skb_queue_tail(&local->skb_queue, skb);
tasklet_schedule(&local->tasklet);
if (was_hw_scan)
goto done;
- netif_tx_lock_bh(local->mdev);
- netif_addr_lock(local->mdev);
+ spin_lock_bh(&local->filter_lock);
local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
drv_configure_filter(local, FIF_BCN_PRBRESP_PROMISC,
&local->filter_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
-
- netif_addr_unlock(local->mdev);
- netif_tx_unlock_bh(local->mdev);
+ local->mc_count,
+ local->mc_list);
+ spin_unlock_bh(&local->filter_lock);
drv_sw_scan_complete(local);
local->scan_state = SCAN_SET_CHANNEL;
local->scan_channel_idx = 0;
- netif_addr_lock_bh(local->mdev);
+ spin_lock_bh(&local->filter_lock);
local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
drv_configure_filter(local, FIF_BCN_PRBRESP_PROMISC,
&local->filter_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
- netif_addr_unlock_bh(local->mdev);
+ local->mc_count,
+ local->mc_list);
+ spin_unlock_bh(&local->filter_lock);
/* TODO: start scan as soon as all nullfunc frames are ACKed */
queue_delayed_work(local->hw.workqueue, &local->scan_work,
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
- if (unlikely(tx->skb->do_not_encrypt))
+ if (unlikely(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT))
tx->key = NULL;
else if (tx->sta && (key = rcu_dereference(tx->sta->key)))
tx->key = key;
}
if (!tx->key || !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- tx->skb->do_not_encrypt = 1;
+ info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
return TX_CONTINUE;
}
memcpy(tmp->cb, skb->cb, sizeof(tmp->cb));
skb_copy_queue_mapping(tmp, skb);
tmp->priority = skb->priority;
- tmp->do_not_encrypt = skb->do_not_encrypt;
tmp->dev = skb->dev;
- tmp->iif = skb->iif;
/* copy header and data */
memcpy(skb_put(tmp, hdrlen), skb->data, hdrlen);
/*
* Warn when submitting a fragmented A-MPDU frame and drop it.
- * This scenario is handled in __ieee80211_tx_prepare but extra
+ * This scenario is handled in ieee80211_tx_prepare but extra
* caution taken here as fragmented ampdu may cause Tx stop.
*/
if (WARN_ON(info->flags & IEEE80211_TX_CTL_AMPDU))
struct ieee80211_radiotap_header *rthdr =
(struct ieee80211_radiotap_header *) skb->data;
struct ieee80211_supported_band *sband;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
sband = tx->local->hw.wiphy->bands[tx->channel->band];
- skb->do_not_encrypt = 1;
+ info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
tx->flags &= ~IEEE80211_TX_FRAGMENTED;
/*
skb_trim(skb, skb->len - FCS_LEN);
}
if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
- tx->skb->do_not_encrypt = 0;
+ info->flags &= ~IEEE80211_TX_INTFL_DONT_ENCRYPT;
if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
tx->flags |= IEEE80211_TX_FRAGMENTED;
break;
* initialises @tx
*/
static ieee80211_tx_result
-__ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
- struct sk_buff *skb,
- struct net_device *dev)
+ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_tx_data *tx,
+ struct sk_buff *skb)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_hdr *hdr;
- struct ieee80211_sub_if_data *sdata;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
int hdrlen, tid;
u8 *qc, *state;
memset(tx, 0, sizeof(*tx));
tx->skb = skb;
- tx->dev = dev; /* use original interface */
+ tx->dev = sdata->dev; /* use original interface */
tx->local = local;
- tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ tx->sdata = sdata;
tx->channel = local->hw.conf.channel;
/*
* Set this flag (used below to indicate "automatic fragmentation"),
tx->flags |= IEEE80211_TX_FRAGMENTED;
/* process and remove the injection radiotap header */
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED)) {
if (!__ieee80211_parse_tx_radiotap(tx, skb))
return TX_DROP;
return TX_CONTINUE;
}
-/*
- * NB: @tx is uninitialised when passed in here
- */
-static int ieee80211_tx_prepare(struct ieee80211_local *local,
- struct ieee80211_tx_data *tx,
- struct sk_buff *skb)
-{
- struct net_device *dev;
-
- dev = dev_get_by_index(&init_net, skb->iif);
- if (unlikely(dev && !is_ieee80211_device(local, dev))) {
- dev_put(dev);
- dev = NULL;
- }
- if (unlikely(!dev))
- return -ENODEV;
- /*
- * initialises tx with control
- *
- * return value is safe to ignore here because this function
- * can only be invoked for multicast frames
- *
- * XXX: clean up
- */
- __ieee80211_tx_prepare(tx, skb, dev);
- dev_put(dev);
- return 0;
-}
-
static int __ieee80211_tx(struct ieee80211_local *local,
struct sk_buff **skbp,
- struct sta_info *sta)
+ struct sta_info *sta,
+ bool txpending)
{
struct sk_buff *skb = *skbp, *next;
struct ieee80211_tx_info *info;
+ unsigned long flags;
int ret, len;
bool fragm = false;
- local->mdev->trans_start = jiffies;
-
while (skb) {
- if (ieee80211_queue_stopped(&local->hw,
- skb_get_queue_mapping(skb)))
- return IEEE80211_TX_PENDING;
+ int q = skb_get_queue_mapping(skb);
+
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+ ret = IEEE80211_TX_OK;
+ if (local->queue_stop_reasons[q] ||
+ (!txpending && !skb_queue_empty(&local->pending[q])))
+ ret = IEEE80211_TX_PENDING;
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+ if (ret != IEEE80211_TX_OK)
+ return ret;
info = IEEE80211_SKB_CB(skb);
return 0;
}
-static void ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
- bool txpending)
+static void ieee80211_tx(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, bool txpending)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_data tx;
ieee80211_tx_result res_prepare;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
queue = skb_get_queue_mapping(skb);
- WARN_ON(!txpending && !skb_queue_empty(&local->pending[queue]));
-
if (unlikely(skb->len < 10)) {
dev_kfree_skb(skb);
return;
rcu_read_lock();
/* initialises tx */
- res_prepare = __ieee80211_tx_prepare(&tx, skb, dev);
+ res_prepare = ieee80211_tx_prepare(sdata, &tx, skb);
if (unlikely(res_prepare == TX_DROP)) {
dev_kfree_skb(skb);
retries = 0;
retry:
- ret = __ieee80211_tx(local, &tx.skb, tx.sta);
+ ret = __ieee80211_tx(local, &tx.skb, tx.sta, txpending);
switch (ret) {
case IEEE80211_TX_OK:
break;
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
- if (__netif_subqueue_stopped(local->mdev, queue)) {
+ if (local->queue_stop_reasons[queue] ||
+ !skb_queue_empty(&local->pending[queue])) {
+ /*
+ * if queue is stopped, queue up frames for later
+ * transmission from the tasklet
+ */
do {
next = skb->next;
skb->next = NULL;
if (unlikely(txpending))
- skb_queue_head(&local->pending[queue],
- skb);
+ __skb_queue_head(&local->pending[queue],
+ skb);
else
- skb_queue_tail(&local->pending[queue],
- skb);
+ __skb_queue_tail(&local->pending[queue],
+ skb);
} while ((skb = next));
- /*
- * Make sure nobody will enable the queue on us
- * (without going through the tasklet) nor disable the
- * netdev queue underneath the pending handling code.
- */
- __set_bit(IEEE80211_QUEUE_STOP_REASON_PENDING,
- &local->queue_stop_reasons[queue]);
-
spin_unlock_irqrestore(&local->queue_stop_reason_lock,
flags);
} else {
+ /*
+ * otherwise retry, but this is a race condition or
+ * a driver bug (which we warn about if it persists)
+ */
spin_unlock_irqrestore(&local->queue_stop_reason_lock,
flags);
retries++;
- if (WARN(retries > 10, "tx refused but queue active"))
+ if (WARN(retries > 10, "tx refused but queue active\n"))
goto drop;
goto retry;
}
return 0;
}
-int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb)
{
- struct ieee80211_master_priv *mpriv = netdev_priv(dev);
- struct ieee80211_local *local = mpriv->local;
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct net_device *odev = NULL;
- struct ieee80211_sub_if_data *osdata;
+ struct ieee80211_sub_if_data *tmp_sdata;
int headroom;
bool may_encrypt;
enum {
UNKNOWN_ADDRESS,
} monitor_iface = NOT_MONITOR;
- if (skb->iif)
- odev = dev_get_by_index(&init_net, skb->iif);
- if (unlikely(odev && !is_ieee80211_device(local, odev))) {
- dev_put(odev);
- odev = NULL;
- }
- if (unlikely(!odev)) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Discarded packet with nonexistent "
- "originating device\n", dev->name);
-#endif
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
- }
+ dev_hold(sdata->dev);
if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
local->hw.conf.dynamic_ps_timeout > 0 &&
msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));
}
- memset(info, 0, sizeof(*info));
-
info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
- osdata = IEEE80211_DEV_TO_SUB_IF(odev);
-
- if (ieee80211_vif_is_mesh(&osdata->vif) &&
+ if (ieee80211_vif_is_mesh(&sdata->vif) &&
ieee80211_is_data(hdr->frame_control)) {
if (is_multicast_ether_addr(hdr->addr3))
memcpy(hdr->addr1, hdr->addr3, ETH_ALEN);
else
- if (mesh_nexthop_lookup(skb, osdata)) {
- dev_put(odev);
- return NETDEV_TX_OK;
+ if (mesh_nexthop_lookup(skb, sdata)) {
+ dev_put(sdata->dev);
+ return;
}
- if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
- IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh,
- fwded_frames);
- } else if (unlikely(osdata->vif.type == NL80211_IFTYPE_MONITOR)) {
- struct ieee80211_sub_if_data *sdata;
+ if (memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
+ IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
+ fwded_frames);
+ } else if (unlikely(sdata->vif.type == NL80211_IFTYPE_MONITOR)) {
int hdrlen;
u16 len_rthdr;
*/
rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces,
+ list_for_each_entry_rcu(tmp_sdata, &local->interfaces,
list) {
- if (!netif_running(sdata->dev))
+ if (!netif_running(tmp_sdata->dev))
continue;
- if (sdata->vif.type != NL80211_IFTYPE_AP)
+ if (tmp_sdata->vif.type != NL80211_IFTYPE_AP)
continue;
- if (compare_ether_addr(sdata->dev->dev_addr,
+ if (compare_ether_addr(tmp_sdata->dev->dev_addr,
hdr->addr2)) {
- dev_hold(sdata->dev);
- dev_put(odev);
- osdata = sdata;
- odev = osdata->dev;
- skb->iif = sdata->dev->ifindex;
+ dev_hold(tmp_sdata->dev);
+ dev_put(sdata->dev);
+ sdata = tmp_sdata;
monitor_iface = FOUND_SDATA;
break;
}
}
}
- may_encrypt = !skb->do_not_encrypt;
+ may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT);
- headroom = osdata->local->tx_headroom;
+ headroom = local->tx_headroom;
if (may_encrypt)
headroom += IEEE80211_ENCRYPT_HEADROOM;
headroom -= skb_headroom(skb);
headroom = max_t(int, 0, headroom);
- if (ieee80211_skb_resize(osdata->local, skb, headroom, may_encrypt)) {
+ if (ieee80211_skb_resize(local, skb, headroom, may_encrypt)) {
dev_kfree_skb(skb);
- dev_put(odev);
- return NETDEV_TX_OK;
+ dev_put(sdata->dev);
+ return;
}
- if (osdata->vif.type == NL80211_IFTYPE_AP_VLAN)
- osdata = container_of(osdata->bss,
- struct ieee80211_sub_if_data,
- u.ap);
+ tmp_sdata = sdata;
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ tmp_sdata = container_of(sdata->bss,
+ struct ieee80211_sub_if_data,
+ u.ap);
if (likely(monitor_iface != UNKNOWN_ADDRESS))
- info->control.vif = &osdata->vif;
-
- ieee80211_tx(odev, skb, false);
- dev_put(odev);
+ info->control.vif = &tmp_sdata->vif;
- return NETDEV_TX_OK;
+ ieee80211_select_queue(local, skb);
+ ieee80211_tx(sdata, skb, false);
+ dev_put(sdata->dev);
}
int ieee80211_monitor_start_xmit(struct sk_buff *skb,
struct ieee80211_channel *chan = local->hw.conf.channel;
struct ieee80211_radiotap_header *prthdr =
(struct ieee80211_radiotap_header *)skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
u16 len_rthdr;
/*
if (unlikely(skb->len < len_rthdr))
goto fail; /* skb too short for claimed rt header extent */
- skb->dev = local->mdev;
-
/* needed because we set skb device to master */
skb->iif = dev->ifindex;
- /* sometimes we do encrypt injected frames, will be fixed
- * up in radiotap parser if not wanted */
- skb->do_not_encrypt = 0;
-
/*
* fix up the pointers accounting for the radiotap
* header still being in there. We are being given
skb_set_network_header(skb, len_rthdr);
skb_set_transport_header(skb, len_rthdr);
- /* pass the radiotap header up to the next stage intact */
- dev_queue_xmit(skb);
+ memset(info, 0, sizeof(*info));
+
+ /* pass the radiotap header up to xmit */
+ ieee80211_xmit(IEEE80211_DEV_TO_SUB_IF(dev), skb);
return NETDEV_TX_OK;
fail:
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
int ret = NETDEV_TX_BUSY, head_need;
u16 ethertype, hdrlen, meshhdrlen = 0;
__le16 fc;
skb->iif = dev->ifindex;
- skb->dev = local->mdev;
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
skb_set_network_header(skb, nh_pos);
skb_set_transport_header(skb, h_pos);
+ memset(info, 0, sizeof(*info));
+
dev->trans_start = jiffies;
- dev_queue_xmit(skb);
+ ieee80211_xmit(sdata, skb);
return NETDEV_TX_OK;
return true;
}
- /* validate info->control.vif against skb->iif */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
}
if (info->flags & IEEE80211_TX_INTFL_NEED_TXPROCESSING) {
- ieee80211_tx(dev, skb, true);
+ /* do not use sdata, it may have been changed above */
+ ieee80211_tx(IEEE80211_DEV_TO_SUB_IF(dev), skb, true);
} else {
hdr = (struct ieee80211_hdr *)skb->data;
sta = sta_info_get(local, hdr->addr1);
- ret = __ieee80211_tx(local, &skb, sta);
+ ret = __ieee80211_tx(local, &skb, sta, true);
if (ret != IEEE80211_TX_OK)
result = false;
}
}
/*
- * Transmit all pending packets. Called from tasklet, locks master device
- * TX lock so that no new packets can come in.
+ * Transmit all pending packets. Called from tasklet.
*/
void ieee80211_tx_pending(unsigned long data)
{
struct ieee80211_local *local = (struct ieee80211_local *)data;
- struct net_device *dev = local->mdev;
unsigned long flags;
int i;
- bool next;
+ bool txok;
rcu_read_lock();
- netif_tx_lock_bh(dev);
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
for (i = 0; i < local->hw.queues; i++) {
/*
* If queue is stopped by something other than due to pending
* frames, or we have no pending frames, proceed to next queue.
*/
- spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
- next = false;
- if (local->queue_stop_reasons[i] !=
- BIT(IEEE80211_QUEUE_STOP_REASON_PENDING) ||
+ if (local->queue_stop_reasons[i] ||
skb_queue_empty(&local->pending[i]))
- next = true;
- spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
-
- if (next)
continue;
- /*
- * start the queue now to allow processing our packets,
- * we're under the tx lock here anyway so nothing will
- * happen as a result of this
- */
- netif_start_subqueue(local->mdev, i);
-
while (!skb_queue_empty(&local->pending[i])) {
- struct sk_buff *skb = skb_dequeue(&local->pending[i]);
-
- if (!ieee80211_tx_pending_skb(local, skb)) {
- skb_queue_head(&local->pending[i], skb);
+ struct sk_buff *skb = __skb_dequeue(&local->pending[i]);
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock,
+ flags);
+
+ txok = ieee80211_tx_pending_skb(local, skb);
+ if (!txok)
+ __skb_queue_head(&local->pending[i], skb);
+ spin_lock_irqsave(&local->queue_stop_reason_lock,
+ flags);
+ if (!txok)
break;
- }
}
-
- /* Start regular packet processing again. */
- if (skb_queue_empty(&local->pending[i]))
- ieee80211_wake_queue_by_reason(&local->hw, i,
- IEEE80211_QUEUE_STOP_REASON_PENDING);
}
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
- netif_tx_unlock_bh(dev);
rcu_read_unlock();
}
info = IEEE80211_SKB_CB(skb);
- skb->do_not_encrypt = 1;
-
+ info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
info->band = band;
/*
* XXX: For now, always use the lowest rate
sdata = vif_to_sdata(vif);
bss = &sdata->u.ap;
- if (!bss)
- return NULL;
-
rcu_read_lock();
beacon = rcu_dereference(bss->beacon);
cpu_to_le16(IEEE80211_FCTL_MOREDATA);
}
- if (!ieee80211_tx_prepare(local, &tx, skb))
+ if (!ieee80211_tx_prepare(sdata, &tx, skb))
break;
dev_kfree_skb_any(skb);
}
return skb;
}
EXPORT_SYMBOL(ieee80211_get_buffered_bc);
+
+void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+ int encrypt)
+{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ skb_set_mac_header(skb, 0);
+ skb_set_network_header(skb, 0);
+ skb_set_transport_header(skb, 0);
+
+ skb->iif = sdata->dev->ifindex;
+ if (!encrypt)
+ info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+
+ ieee80211_xmit(sdata, skb);
+}
__clear_bit(reason, &local->queue_stop_reasons[queue]);
- if (!skb_queue_empty(&local->pending[queue]) &&
- local->queue_stop_reasons[queue] ==
- BIT(IEEE80211_QUEUE_STOP_REASON_PENDING))
- tasklet_schedule(&local->tx_pending_tasklet);
-
if (local->queue_stop_reasons[queue] != 0)
/* someone still has this queue stopped */
return;
- netif_wake_subqueue(local->mdev, queue);
+ if (!skb_queue_empty(&local->pending[queue]))
+ tasklet_schedule(&local->tx_pending_tasklet);
}
void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
if (WARN_ON(queue >= hw->queues))
return;
- /*
- * Only stop if it was previously running, this is necessary
- * for correct pending packets handling because there we may
- * start (but not wake) the queue and rely on that.
- */
- if (!local->queue_stop_reasons[queue])
- netif_stop_subqueue(local->mdev, queue);
-
__set_bit(reason, &local->queue_stop_reasons[queue]);
}
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
__ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
- __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_PENDING);
- skb_queue_tail(&local->pending[queue], skb);
+ __skb_queue_tail(&local->pending[queue], skb);
__ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
}
while ((skb = skb_dequeue(skbs))) {
ret++;
queue = skb_get_queue_mapping(skb);
- skb_queue_tail(&local->pending[queue], skb);
+ __skb_queue_tail(&local->pending[queue], skb);
}
- for (i = 0; i < hw->queues; i++) {
- if (ret)
- __ieee80211_stop_queue(hw, i,
- IEEE80211_QUEUE_STOP_REASON_PENDING);
+ for (i = 0; i < hw->queues; i++)
__ieee80211_wake_queue(hw, i,
IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
- }
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
return ret;
int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
{
struct ieee80211_local *local = hw_to_local(hw);
+ unsigned long flags;
+ int ret;
if (WARN_ON(queue >= hw->queues))
return true;
- return __netif_subqueue_stopped(local->mdev, queue);
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+ ret = !!local->queue_stop_reasons[queue];
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+ return ret;
}
EXPORT_SYMBOL(ieee80211_queue_stopped);
ieee80211_set_wmm_default(sdata);
}
-void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
- int encrypt)
-{
- skb->dev = sdata->local->mdev;
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, 0);
- skb_set_transport_header(skb, 0);
-
- skb->iif = sdata->dev->ifindex;
- skb->do_not_encrypt = !encrypt;
-
- dev_queue_xmit(skb);
-}
-
u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
enum ieee80211_band band)
{
/* reconfigure hardware */
ieee80211_hw_config(local, ~0);
- netif_addr_lock_bh(local->mdev);
+ spin_lock_bh(&local->filter_lock);
ieee80211_configure_filter(local);
- netif_addr_unlock_bh(local->mdev);
+ spin_unlock_bh(&local->filter_lock);
/* Finally also reconfigure all the BSS information */
list_for_each_entry(sdata, &local->interfaces, list) {
return ieee802_1d_to_ac[skb->priority];
}
-u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
+void ieee80211_select_queue(struct ieee80211_local *local, struct sk_buff *skb)
{
- struct ieee80211_master_priv *mpriv = netdev_priv(dev);
- struct ieee80211_local *local = mpriv->local;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 queue;
u8 tid;
*p = 0;
}
- return queue;
+ skb_set_queue_mapping(skb, queue);
}
extern const int ieee802_1d_to_ac[8];
-u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb);
+void ieee80211_select_queue(struct ieee80211_local *local,
+ struct sk_buff *skb);
#endif /* _WME_H */
projects / users / hch / misc.git / commitdiff