From: Mohamed Abbas <mabbas@xxxxxxxxxxxxxxx>
Add new API to MAC80211 to allow low level driver to
notify MAC with driver status like comming from suspend
and HW rfkill
Signed-off-by: Mohamed Abbas <mabbas@xxxxxxxxxxxxxxx>
Signed-off-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl3945-base.c | 1 +
drivers/net/wireless/iwlwifi/iwl4965-base.c | 1 +
include/net/mac80211.h | 21 +++++++++++++++++++++
net/mac80211/ieee80211_sta.c | 27 +++++++++++++++++++++++++++
4 files changed, 50 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index d4daa04..19a14ad 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -5883,6 +5883,7 @@ static void iwl3945_alive_start(struct iwl3945_priv *priv)
if (priv->error_recovering)
iwl3945_error_recovery(priv);
+ ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
return;
restart:
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 4517e4c..4de81d8 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -5711,6 +5711,7 @@ static void iwl4965_alive_start(struct iwl_priv *priv)
iwl4965_error_recovery(priv);
iwlcore_low_level_notify(priv, IWLCORE_START_EVT);
+ ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
return;
restart:
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 01b3215..9fcda2d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -74,6 +74,14 @@
*/
/**
+ * enum ieee80211_notification_type - Low level driver notification
+ * @IEEE80211_NOTIFY_RE_ASSOC: start the re-association sequence
+ */
+enum ieee80211_notification_types {
+ IEEE80211_NOTIFY_RE_ASSOC,
+};
+
+/**
* struct ieee80211_ht_bss_info - describing BSS's HT characteristics
*
* This structure describes most essential parameters needed
@@ -1677,4 +1685,17 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid);
void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
u16 tid);
+/**
+ * ieee80211_notify_mac - low level driver notification
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @notification_types: enum ieee80211_notification_types
+ *
+ * This function must be called by low level driver to inform mac80211 of
+ * low level driver status change or force mac80211 to re-assoc for low
+ * level driver internal error that require re-assoc. A good example to use
+ * this notification to call mac80211 after suspend/resume, some NIC require
+ * re-assoc.
+ */
+void ieee80211_notify_mac(struct ieee80211_hw *hw,
+ enum ieee80211_notification_types notif_type);
#endif /* MAC80211_H */
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index f3c8a21..e1dd739 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -4235,3 +4235,30 @@ int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
ieee80211_set_disassoc(dev, ifsta, 0);
return 0;
}
+
+void ieee80211_notify_mac(struct ieee80211_hw *hw,
+ enum ieee80211_notification_types notif_type)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata;
+
+ switch (notif_type) {
+ case IEEE80211_NOTIFY_RE_ASSOC:
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+
+ /* No need to wake the master device. */
+ if (sdata->dev == local->mdev)
+ continue;
+
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+ ieee80211_sta_req_auth(sdata->dev,
+ &sdata->u.sta);
+ }
+
+ }
+ rcu_read_unlock();
+ break;
+ }
+}
+EXPORT_SYMBOL(ieee80211_notify_mac);
--
1.5.3.4
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