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mac80211: always process blockack action from workqueue 

To prepare for making the ampdu_action callback
sleep, make mac80211 always process blockack
action frames from the skb queue. This gets rid
of the current special case for managed mode
interfaces as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2010-06-10 10:21:35 +02:00 committed by John W. Linville
parent 77a121c3a8
commit bed7ee6e44
3 changed files with 43 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
net/mac80211/iface.c
View File

@ -724,7 +724,36 @@ static void ieee80211_iface_work(struct work_struct *work)
/* first process frames */ /* first process frames */
while ((skb = skb_dequeue(&sdata->skb_queue))) { while ((skb = skb_dequeue(&sdata->skb_queue))) {
switch (sdata->vif.type) { struct ieee80211_mgmt *mgmt = (void *)skb->data;
if (ieee80211_is_action(mgmt->frame_control) &&
mgmt->u.action.category == WLAN_CATEGORY_BACK) {
int len = skb->len;
struct sta_info *sta;
rcu_read_lock();
sta = sta_info_get(sdata, mgmt->sa);
if (sta) {
switch (mgmt->u.action.u.addba_req.action_code) {
case WLAN_ACTION_ADDBA_REQ:
ieee80211_process_addba_request(
local, sta, mgmt, len);
break;
case WLAN_ACTION_ADDBA_RESP:
ieee80211_process_addba_resp(local, sta,
mgmt, len);
break;
case WLAN_ACTION_DELBA:
ieee80211_process_delba(sdata, sta,
mgmt, len);
break;
default:
WARN_ON(1);
break;
}
}
rcu_read_unlock();
} else switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_STATION:
ieee80211_sta_rx_queued_mgmt(sdata, skb); ieee80211_sta_rx_queued_mgmt(sdata, skb);
break; break;

38
net/mac80211/mlme.c
View File

@ -1666,44 +1666,6 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
break; break;
case IEEE80211_STYPE_ACTION: case IEEE80211_STYPE_ACTION:
switch (mgmt->u.action.category) { switch (mgmt->u.action.category) {
case WLAN_CATEGORY_BACK: {
struct ieee80211_local *local = sdata->local;
int len = skb->len;
struct sta_info *sta;
rcu_read_lock();
sta = sta_info_get(sdata, mgmt->sa);
if (!sta) {
rcu_read_unlock();
break;
}
local_bh_disable();
switch (mgmt->u.action.u.addba_req.action_code) {
case WLAN_ACTION_ADDBA_REQ:
if (len < (IEEE80211_MIN_ACTION_SIZE +
sizeof(mgmt->u.action.u.addba_req)))
break;
ieee80211_process_addba_request(local, sta, mgmt, len);
break;
case WLAN_ACTION_ADDBA_RESP:
if (len < (IEEE80211_MIN_ACTION_SIZE +
sizeof(mgmt->u.action.u.addba_resp)))
break;
ieee80211_process_addba_resp(local, sta, mgmt, len);
break;
case WLAN_ACTION_DELBA:
if (len < (IEEE80211_MIN_ACTION_SIZE +
sizeof(mgmt->u.action.u.delba)))
break;
ieee80211_process_delba(sdata, sta, mgmt, len);
break;
}
local_bh_enable();
rcu_read_unlock();
break;
}
case WLAN_CATEGORY_SPECTRUM_MGMT: case WLAN_CATEGORY_SPECTRUM_MGMT:
ieee80211_sta_process_chanswitch(sdata, ieee80211_sta_process_chanswitch(sdata,
&mgmt->u.action.u.chan_switch.sw_elem, &mgmt->u.action.u.chan_switch.sw_elem,

29
net/mac80211/rx.c
View File

@ -1950,33 +1950,29 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
if (len < IEEE80211_MIN_ACTION_SIZE + 1) if (len < IEEE80211_MIN_ACTION_SIZE + 1)
break; break;
if (sdata->vif.type == NL80211_IFTYPE_STATION) {
skb_queue_tail(&sdata->skb_queue, rx->skb);
ieee80211_queue_work(&local->hw, &sdata->work);
return RX_QUEUED;
}
switch (mgmt->u.action.u.addba_req.action_code) { switch (mgmt->u.action.u.addba_req.action_code) {
case WLAN_ACTION_ADDBA_REQ: case WLAN_ACTION_ADDBA_REQ:
if (len < (IEEE80211_MIN_ACTION_SIZE + if (len < (IEEE80211_MIN_ACTION_SIZE +
sizeof(mgmt->u.action.u.addba_req))) sizeof(mgmt->u.action.u.addba_req)))
return RX_DROP_MONITOR; goto invalid;
ieee80211_process_addba_request(local, rx->sta, mgmt, len); break;
goto handled;
case WLAN_ACTION_ADDBA_RESP: case WLAN_ACTION_ADDBA_RESP:
if (len < (IEEE80211_MIN_ACTION_SIZE + if (len < (IEEE80211_MIN_ACTION_SIZE +
sizeof(mgmt->u.action.u.addba_resp))) sizeof(mgmt->u.action.u.addba_resp)))
break; goto invalid;
ieee80211_process_addba_resp(local, rx->sta, mgmt, len); break;
goto handled;
case WLAN_ACTION_DELBA: case WLAN_ACTION_DELBA:
if (len < (IEEE80211_MIN_ACTION_SIZE + if (len < (IEEE80211_MIN_ACTION_SIZE +
sizeof(mgmt->u.action.u.delba))) sizeof(mgmt->u.action.u.delba)))
break; goto invalid;
ieee80211_process_delba(sdata, rx->sta, mgmt, len); break;
goto handled; default:
goto invalid;
} }
break;
skb_queue_tail(&sdata->skb_queue, rx->skb);
ieee80211_queue_work(&local->hw, &sdata->work);
return RX_QUEUED;
case WLAN_CATEGORY_SPECTRUM_MGMT: case WLAN_CATEGORY_SPECTRUM_MGMT:
if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ) if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)
break; break;
@ -2033,6 +2029,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
return RX_QUEUED; return RX_QUEUED;
} }
invalid:
/* /*
* For AP mode, hostapd is responsible for handling any action * For AP mode, hostapd is responsible for handling any action
* frames that we didn't handle, including returning unknown * frames that we didn't handle, including returning unknown