kernel/mac80211-explicitly-disable-enable-QoS.patch

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2010-07-30 00:19:53 +00:00
From: Stanislaw Gruszka <sgruszka@redhat.com>
To: kernel@lists.fedoraproject.org, "John W. Linville" <linville@redhat.com>
Subject: [PATCH 1/4 2.6.34.y] mac80211: explicitly disable/enable QoS
Date: Fri, 11 Jun 2010 17:05:11 +0200
commit e1b3ec1a2a336c328c336cfa5485a5f0484cc90d upstream.
Add interface to disable/enable QoS (aka WMM or WME). Currently drivers
enable it explicitly when ->conf_tx method is called, and newer disable.
Disabling is needed for some APs, which do not support QoS, such
we should send QoS frames to them.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
include/net/mac80211.h | 5 +++++
net/mac80211/mlme.c | 9 ++++++++-
net/mac80211/util.c | 5 +++++
3 files changed, 18 insertions(+), 1 deletions(-)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 45d7d44..ea607d6 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -580,11 +580,15 @@ struct ieee80211_rx_status {
* may turn the device off as much as possible. Typically, this flag will
* be set when an interface is set UP but not associated or scanning, but
* it can also be unset in that case when monitor interfaces are active.
+ * @IEEE80211_CONF_QOS: Enable 802.11e QoS also know as WMM (Wireless
+ * Multimedia). On some drivers (iwlwifi is one of know) we have
+ * to enable/disable QoS explicitly.
*/
enum ieee80211_conf_flags {
IEEE80211_CONF_MONITOR = (1<<0),
IEEE80211_CONF_PS = (1<<1),
IEEE80211_CONF_IDLE = (1<<2),
+ IEEE80211_CONF_QOS = (1<<3),
};
@@ -609,6 +613,7 @@ enum ieee80211_conf_changed {
IEEE80211_CONF_CHANGE_CHANNEL = BIT(6),
IEEE80211_CONF_CHANGE_RETRY_LIMITS = BIT(7),
IEEE80211_CONF_CHANGE_IDLE = BIT(8),
+ IEEE80211_CONF_CHANGE_QOS = BIT(9),
};
/**
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 875c8de..1b80e2b 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -592,6 +592,9 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
int count;
u8 *pos, uapsd_queues = 0;
+ if (!local->ops->conf_tx)
+ return;
+
if (local->hw.queues < 4)
return;
@@ -666,11 +669,15 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
params.aifs, params.cw_min, params.cw_max, params.txop,
params.uapsd);
#endif
- if (drv_conf_tx(local, queue, &params) && local->ops->conf_tx)
+ if (drv_conf_tx(local, queue, &params))
printk(KERN_DEBUG "%s: failed to set TX queue "
"parameters for queue %d\n",
wiphy_name(local->hw.wiphy), queue);
}
+
+ /* enable WMM or activate new settings */
+ local->hw.conf.flags |= IEEE80211_CONF_QOS;
+ drv_config(local, IEEE80211_CONF_CHANGE_QOS);
}
static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 53af570..582f43a 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -796,6 +796,11 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
drv_conf_tx(local, queue, &qparam);
}
+
+ /* after reinitialize QoS TX queues setting to default,
+ * disable QoS at all */
+ local->hw.conf.flags &= ~IEEE80211_CONF_QOS;
+ drv_config(local, IEEE80211_CONF_CHANGE_QOS);
}
void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
--
1.6.2.5
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