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mac80211: refuse TX queue configuration on non-QoS HW 

Drivers that don't support QoS also don't support
setting up their ACs, catch that early. While at
it, remove the input check since cfg80211 does it
now.

Also fix up the restart code to not try to set up
the queues in this case.

Finally also change the tx_conf array to have
IEEE80211_NUM_ACS entries instead of # of queues
since that's what it really needs.

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 2012-03-28 11:04:25 +02:00 committed by John W. Linville
parent a3304b0a17
commit 54bcbc695e
3 changed files with 22 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
net/mac80211/cfg.c
View File

@ -1437,6 +1437,9 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
if (!local->ops->conf_tx)
return -EOPNOTSUPP;
if (local->hw.queues < IEEE80211_NUM_ACS)
return -EOPNOTSUPP;
memset(&p, 0, sizeof(p));
p.aifs = params->aifs;
p.cw_max = params->cwmax;
@ -1449,9 +1452,6 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
*/
p.uapsd = false;
if (params->ac >= local->hw.queues)
return -EINVAL;
sdata->tx_conf[params->ac] = p;
if (drv_conf_tx(local, sdata, params->ac, &p)) {
wiphy_debug(local->hw.wiphy,

2
net/mac80211/ieee80211_i.h
View File

@ -687,7 +687,7 @@ struct ieee80211_sub_if_data {
__be16 control_port_protocol;
bool control_port_no_encrypt;
struct ieee80211_tx_queue_params tx_conf[IEEE80211_MAX_QUEUES];
struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
struct work_struct work;
struct sk_buff_head skb_queue;

30
net/mac80211/util.c
View File

@ -769,19 +769,22 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_queue_params qparam;
int queue;
int ac;
bool use_11b;
int aCWmin, aCWmax;
if (!local->ops->conf_tx)
return;
if (local->hw.queues < IEEE80211_NUM_ACS)
return;
memset(&qparam, 0, sizeof(qparam));
use_11b = (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) &&
!(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE);
for (queue = 0; queue < local->hw.queues; queue++) {
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
/* Set defaults according to 802.11-2007 Table 7-37 */
aCWmax = 1023;
if (use_11b)
@ -789,7 +792,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
else
aCWmin = 15;
switch (queue) {
switch (ac) {
case IEEE80211_AC_BK:
qparam.cw_max = aCWmax;
qparam.cw_min = aCWmin;
@ -825,8 +828,8 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
qparam.uapsd = false;
sdata->tx_conf[queue] = qparam;
drv_conf_tx(local, sdata, queue, &qparam);
sdata->tx_conf[ac] = qparam;
drv_conf_tx(local, sdata, ac, &qparam);
}
/* after reinitialize QoS TX queues setting to default,
@ -1226,14 +1229,17 @@ int ieee80211_reconfig(struct ieee80211_local *local)
mutex_unlock(&local->sta_mtx);
/* reconfigure tx conf */
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
sdata->vif.type == NL80211_IFTYPE_MONITOR ||
!ieee80211_sdata_running(sdata))
continue;
if (hw->queues >= IEEE80211_NUM_ACS) {
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
sdata->vif.type == NL80211_IFTYPE_MONITOR ||
!ieee80211_sdata_running(sdata))
continue;
for (i = 0; i < hw->queues; i++)
drv_conf_tx(local, sdata, i, &sdata->tx_conf[i]);
for (i = 0; i < IEEE80211_NUM_ACS; i++)
drv_conf_tx(local, sdata, i,
&sdata->tx_conf[i]);
}
}
/* reconfigure hardware */