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mac80211: reconfigure tx on device reconfiguration 

Add tx_conf array to save the current tx queues
configuration, and reconfig it on resume (ieee80211_reconfig).

On resume, the driver is being reconfigured. Without
reconfiguring the tx queues as well, the driver might
configure the device to use wrong ac params (e.g. ps-poll
instead of uapsd).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Eliad Peller 2011-07-14 20:29:42 +03:00 committed by John W. Linville
parent b3c2ce131c
commit 2683d65bb0
4 changed files with 12 additions and 1 deletions
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4
net/mac80211/cfg.c
View File

@ -1255,6 +1255,10 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
*/
p.uapsd = false;
if (params->queue >= local->hw.queues)
return -EINVAL;
local->tx_conf[params->queue] = p;
if (drv_conf_tx(local, params->queue, &p)) {
wiphy_debug(local->hw.wiphy,
"failed to set TX queue parameters for queue %d\n",

1
net/mac80211/ieee80211_i.h
View File

@ -746,6 +746,7 @@ struct ieee80211_local {
struct workqueue_struct *workqueue;
unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
struct ieee80211_tx_queue_params tx_conf[IEEE80211_MAX_QUEUES];
/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
spinlock_t queue_stop_reason_lock;

1
net/mac80211/mlme.c
View File

@ -917,6 +917,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
params.aifs, params.cw_min, params.cw_max,
params.txop, params.uapsd);
#endif
local->tx_conf[queue] = params;
if (drv_conf_tx(local, queue, &params))
wiphy_debug(local->hw.wiphy,
"failed to set TX queue parameters for queue %d\n",

7
net/mac80211/util.c
View File

@ -799,6 +799,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
qparam.uapsd = false;
local->tx_conf[queue] = qparam;
drv_conf_tx(local, queue, &qparam);
}
@ -1134,7 +1135,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
struct ieee80211_hw *hw = &local->hw;
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
int res;
int res, i;
#ifdef CONFIG_PM
if (local->suspended)
@ -1211,6 +1212,10 @@ int ieee80211_reconfig(struct ieee80211_local *local)
}
mutex_unlock(&local->sta_mtx);
/* reconfigure tx conf */
for (i = 0; i < hw->queues; i++)
drv_conf_tx(local, i, &local->tx_conf[i]);
/* reconfigure hardware */
ieee80211_hw_config(local, ~0);