static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
struct tid_ampdu_rx *tid_agg_rx,
struct sk_buff *skb,
- struct ieee80211_rx_status *status,
u16 mpdu_seq_num,
int bar_req);
/*
return skb;
}
-static inline int should_drop_frame(struct ieee80211_rx_status *status,
- struct sk_buff *skb,
+static inline int should_drop_frame(struct sk_buff *skb,
int present_fcs_len,
int radiotap_len)
{
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
static void
ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
struct sk_buff *skb,
- struct ieee80211_rx_status *status,
struct ieee80211_rate *rate,
int rtap_len)
{
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_radiotap_header *rthdr;
unsigned char *pos;
*/
static struct sk_buff *
ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
- struct ieee80211_rx_status *status,
struct ieee80211_rate *rate)
{
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(origskb);
struct ieee80211_sub_if_data *sdata;
int needed_headroom = 0;
struct sk_buff *skb, *skb2;
present_fcs_len = FCS_LEN;
if (!local->monitors) {
- if (should_drop_frame(status, origskb, present_fcs_len,
- rtap_len)) {
+ if (should_drop_frame(origskb, present_fcs_len, rtap_len)) {
dev_kfree_skb(origskb);
return NULL;
}
return remove_monitor_info(local, origskb, rtap_len);
}
- if (should_drop_frame(status, origskb, present_fcs_len, rtap_len)) {
+ if (should_drop_frame(origskb, present_fcs_len, rtap_len)) {
/* only need to expand headroom if necessary */
skb = origskb;
origskb = NULL;
/* if necessary, prepend radiotap information */
if (!(status->flag & RX_FLAG_RADIOTAP))
- ieee80211_add_rx_radiotap_header(local, skb, status, rate,
+ ieee80211_add_rx_radiotap_header(local, skb, rate,
needed_headroom);
skb_reset_mac_header(skb);
struct sk_buff *skb = rx->skb;
if (unlikely(local->hw_scanning))
- return ieee80211_scan_rx(rx->sdata, skb, rx->status);
+ return ieee80211_scan_rx(rx->sdata, skb);
if (unlikely(local->sw_scanning)) {
/* drop all the other packets during a software scan anyway */
- if (ieee80211_scan_rx(rx->sdata, skb, rx->status)
- != RX_QUEUED)
+ if (ieee80211_scan_rx(rx->sdata, skb) != RX_QUEUED)
dev_kfree_skb(skb);
return RX_QUEUED;
}
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
struct ieee80211_local *local = sdata->local;
- struct sk_buff *skb;
- int sent = 0;
+ int sent, buffered;
atomic_dec(&sdata->bss->num_sta_ps);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
/* Send all buffered frames to the station */
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- sent++;
- skb->requeue = 1;
- dev_queue_xmit(skb);
- }
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- local->total_ps_buffered--;
- sent++;
+ sent = ieee80211_add_pending_skbs(local, &sta->tx_filtered);
+ buffered = ieee80211_add_pending_skbs(local, &sta->ps_tx_buf);
+ sent += buffered;
+ local->total_ps_buffered -= buffered;
+
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA %pM aid %d send PS frame "
- "since STA not sleeping anymore\n", sdata->dev->name,
- sta->sta.addr, sta->sta.aid);
+ printk(KERN_DEBUG "%s: STA %pM aid %d sending %d filtered/%d PS frames "
+ "since STA not sleeping anymore\n", sdata->dev->name,
+ sta->sta.addr, sta->sta.aid, sent - buffered, buffered);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- skb->requeue = 1;
- dev_queue_xmit(skb);
- }
return sent;
}
* mac80211. That also explains the __skb_push()
* below.
*/
- align = (unsigned long)skb->data & 3;
+ align = ((unsigned long)(skb->data + sizeof(struct ethhdr))) & 3;
if (align) {
if (WARN_ON(skb_headroom(skb) < 3)) {
dev_kfree_skb(skb);
/* manage reordering buffer according to requested */
/* sequence number */
rcu_read_lock();
- ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL, NULL,
+ ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL,
start_seq_num, 1);
rcu_read_unlock();
return RX_DROP_UNUSABLE;
return RX_DROP_MONITOR;
if (ieee80211_vif_is_mesh(&sdata->vif))
- return ieee80211_mesh_rx_mgmt(sdata, rx->skb, rx->status);
+ return ieee80211_mesh_rx_mgmt(sdata, rx->skb);
if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
- return ieee80211_ibss_rx_mgmt(sdata, rx->skb, rx->status);
+ return ieee80211_ibss_rx_mgmt(sdata, rx->skb);
if (sdata->vif.type == NL80211_IFTYPE_STATION)
- return ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status);
+ return ieee80211_sta_rx_mgmt(sdata, rx->skb);
return RX_DROP_MONITOR;
}
!ieee80211_is_auth(hdr->frame_control))
goto ignore;
- mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr, NULL);
+ mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr, NULL,
+ GFP_ATOMIC);
ignore:
dev_kfree_skb(rx->skb);
rx->skb = NULL;
*/
static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
struct sk_buff *skb,
- struct ieee80211_rx_status *status,
struct ieee80211_rate *rate)
{
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hdr *hdr;
{
struct ieee80211_supported_band *sband;
struct ieee80211_rate *rate;
- struct ieee80211_rx_status status;
+ struct sk_buff *skb = tid_agg_rx->reorder_buf[index];
+ struct ieee80211_rx_status *status;
- if (!tid_agg_rx->reorder_buf[index])
+ if (!skb)
goto no_frame;
+ status = IEEE80211_SKB_RXCB(skb);
+
/* release the reordered frames to stack */
- memcpy(&status, tid_agg_rx->reorder_buf[index]->cb, sizeof(status));
- sband = hw->wiphy->bands[status.band];
- if (status.flag & RX_FLAG_HT)
+ sband = hw->wiphy->bands[status->band];
+ if (status->flag & RX_FLAG_HT)
rate = sband->bitrates; /* TODO: HT rates */
else
- rate = &sband->bitrates[status.rate_idx];
- __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
- &status, rate);
+ rate = &sband->bitrates[status->rate_idx];
+ __ieee80211_rx_handle_packet(hw, skb, rate);
tid_agg_rx->stored_mpdu_num--;
tid_agg_rx->reorder_buf[index] = NULL;
static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
struct tid_ampdu_rx *tid_agg_rx,
struct sk_buff *skb,
- struct ieee80211_rx_status *rxstatus,
u16 mpdu_seq_num,
int bar_req)
{
/* put the frame in the reordering buffer */
tid_agg_rx->reorder_buf[index] = skb;
tid_agg_rx->reorder_time[index] = jiffies;
- memcpy(tid_agg_rx->reorder_buf[index]->cb, rxstatus,
- sizeof(*rxstatus));
tid_agg_rx->stored_mpdu_num++;
/* release the buffer until next missing frame */
index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn)
}
static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_rx_status *status)
+ struct sk_buff *skb)
{
struct ieee80211_hw *hw = &local->hw;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
/* according to mpdu sequence number deal with reordering buffer */
mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4;
- ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb, status,
+ ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb,
mpdu_seq_num, 0);
end_reorder:
return ret;
* This is the receive path handler. It is called by a low level driver when an
* 802.11 MPDU is received from the hardware.
*/
-void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
+void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate = NULL;
struct ieee80211_supported_band *sband;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
if (status->band < 0 ||
status->band >= IEEE80211_NUM_BANDS) {
* if it was previously present.
* Also, frames with less than 16 bytes are dropped.
*/
- skb = ieee80211_rx_monitor(local, skb, status, rate);
+ skb = ieee80211_rx_monitor(local, skb, rate);
if (!skb) {
rcu_read_unlock();
return;
* frames from other than operational channel), but that should not
* happen in normal networks.
*/
- if (!ieee80211_rx_reorder_ampdu(local, skb, status))
- __ieee80211_rx_handle_packet(hw, skb, status, rate);
+ if (!ieee80211_rx_reorder_ampdu(local, skb))
+ __ieee80211_rx_handle_packet(hw, skb, rate);
rcu_read_unlock();
}
/* This is a version of the rx handler that can be called from hard irq
* context. Post the skb on the queue and schedule the tasklet */
-void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
+void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct ieee80211_local *local = hw_to_local(hw);
BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb));
skb->dev = local->mdev;
- /* copy status into skb->cb for use by tasklet */
- memcpy(skb->cb, status, sizeof(*status));
skb->pkt_type = IEEE80211_RX_MSG;
skb_queue_tail(&local->skb_queue, skb);
tasklet_schedule(&local->tasklet);
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