diff options
Diffstat (limited to 'net/mac80211/rx.c')
| -rw-r--r-- | net/mac80211/rx.c | 86 |
1 files changed, 15 insertions, 71 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index c06496f..28316b2a 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -781,7 +781,7 @@ static void ap_sta_ps_start(struct sta_info *sta) struct ieee80211_local *local = sdata->local; atomic_inc(&sdata->bss->num_sta_ps); - set_sta_flags(sta, WLAN_STA_PS); + set_sta_flags(sta, WLAN_STA_PS_STA); drv_sta_notify(local, &sdata->vif, STA_NOTIFY_SLEEP, &sta->sta); #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG printk(KERN_DEBUG "%s: STA %pM aid %d enters power save mode\n", @@ -792,33 +792,25 @@ static void ap_sta_ps_start(struct sta_info *sta) static void ap_sta_ps_end(struct sta_info *sta) { struct ieee80211_sub_if_data *sdata = sta->sdata; - struct ieee80211_local *local = sdata->local; - int sent, buffered; atomic_dec(&sdata->bss->num_sta_ps); - clear_sta_flags(sta, WLAN_STA_PS); - drv_sta_notify(local, &sdata->vif, STA_NOTIFY_AWAKE, &sta->sta); - - if (!skb_queue_empty(&sta->ps_tx_buf)) - sta_info_clear_tim_bit(sta); + clear_sta_flags(sta, WLAN_STA_PS_STA); #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG printk(KERN_DEBUG "%s: STA %pM aid %d exits power save mode\n", sdata->dev->name, sta->sta.addr, sta->sta.aid); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - /* Send all buffered frames to the station */ - 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; - + if (test_sta_flags(sta, WLAN_STA_PS_DRIVER)) { #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - 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); + printk(KERN_DEBUG "%s: STA %pM aid %d driver-ps-blocked\n", + sdata->dev->name, sta->sta.addr, sta->sta.aid); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ + return; + } + + ieee80211_sta_ps_deliver_wakeup(sta); } static ieee80211_rx_result debug_noinline @@ -866,7 +858,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) if (!ieee80211_has_morefrags(hdr->frame_control) && (rx->sdata->vif.type == NL80211_IFTYPE_AP || rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) { - if (test_sta_flags(sta, WLAN_STA_PS)) { + if (test_sta_flags(sta, WLAN_STA_PS_STA)) { /* * Ignore doze->wake transitions that are * indicated by non-data frames, the standard @@ -1094,9 +1086,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) static ieee80211_rx_result debug_noinline ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev); - struct sk_buff *skb; - int no_pending_pkts; + struct ieee80211_sub_if_data *sdata = rx->sdata; __le16 fc = ((struct ieee80211_hdr *)rx->skb->data)->frame_control; if (likely(!rx->sta || !ieee80211_is_pspoll(fc) || @@ -1107,56 +1097,10 @@ ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx) (sdata->vif.type != NL80211_IFTYPE_AP_VLAN)) return RX_DROP_UNUSABLE; - skb = skb_dequeue(&rx->sta->tx_filtered); - if (!skb) { - skb = skb_dequeue(&rx->sta->ps_tx_buf); - if (skb) - rx->local->total_ps_buffered--; - } - no_pending_pkts = skb_queue_empty(&rx->sta->tx_filtered) && - skb_queue_empty(&rx->sta->ps_tx_buf); - - if (skb) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) skb->data; - - /* - * Tell TX path to send this frame even though the STA may - * still remain is PS mode after this frame exchange. - */ - info->flags |= IEEE80211_TX_CTL_PSPOLL_RESPONSE; - -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA %pM aid %d: PS Poll (entries after %d)\n", - rx->sta->sta.addr, rx->sta->sta.aid, - skb_queue_len(&rx->sta->ps_tx_buf)); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - - /* Use MoreData flag to indicate whether there are more - * buffered frames for this STA */ - if (no_pending_pkts) - hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA); - else - hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA); - - ieee80211_add_pending_skb(rx->local, skb); - - if (no_pending_pkts) - sta_info_clear_tim_bit(rx->sta); -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - } else { - /* - * FIXME: This can be the result of a race condition between - * us expiring a frame and the station polling for it. - * Should we send it a null-func frame indicating we - * have nothing buffered for it? - */ - printk(KERN_DEBUG "%s: STA %pM sent PS Poll even " - "though there are no buffered frames for it\n", - rx->dev->name, rx->sta->sta.addr); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - } + if (!test_sta_flags(rx->sta, WLAN_STA_PS_DRIVER)) + ieee80211_sta_ps_deliver_poll_response(rx->sta); + else + set_sta_flags(rx->sta, WLAN_STA_PSPOLL); /* Free PS Poll skb here instead of returning RX_DROP that would * count as an dropped frame. */ |
