diff mbox

[4/8] iwlwifi: update LQ for bcast station on channel change

Message ID 1277505781-25268-5-git-send-email-reinette.chatre@intel.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Reinette Chatre June 25, 2010, 10:42 p.m. UTC 
None
diff mbox

Patch

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 24743b9..1daf159 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -217,6 +217,7 @@  static struct iwl_lib_ops iwl1000_lib = {
 		.set_ct_kill = iwl1000_set_ct_threshold,
 	 },
 	.manage_ibss_station = iwlagn_manage_ibss_station,
+	.update_bcast_station = iwl_update_bcast_station,
 	.debugfs_ops = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 67526a1..1dd3bc4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2280,6 +2280,7 @@  static struct iwl_lib_ops iwl4965_lib = {
 		.set_ct_kill = iwl4965_set_ct_threshold,
 	},
 	.manage_ibss_station = iwlagn_manage_ibss_station,
+	.update_bcast_station = iwl_update_bcast_station,
 	.debugfs_ops = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index fa2dbb5..b8f3e20 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -393,6 +393,7 @@  static struct iwl_lib_ops iwl5000_lib = {
 		.set_ct_kill = iwl5000_set_ct_threshold,
 	 },
 	.manage_ibss_station = iwlagn_manage_ibss_station,
+	.update_bcast_station = iwl_update_bcast_station,
 	.debugfs_ops = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
@@ -455,6 +456,7 @@  static struct iwl_lib_ops iwl5150_lib = {
 		.set_ct_kill = iwl5150_set_ct_threshold,
 	 },
 	.manage_ibss_station = iwlagn_manage_ibss_station,
+	.update_bcast_station = iwl_update_bcast_station,
 	.debugfs_ops = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index c909a9c..61cf0b3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -318,6 +318,7 @@  static struct iwl_lib_ops iwl6000_lib = {
 		.set_calib_version = iwl6000_set_calib_version,
 	 },
 	.manage_ibss_station = iwlagn_manage_ibss_station,
+	.update_bcast_station = iwl_update_bcast_station,
 	.debugfs_ops = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 329e510..f47a58f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2110,6 +2110,9 @@  int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
 		iwl_set_flags_for_band(priv, conf->channel->band, priv->vif);
 		spin_unlock_irqrestore(&priv->lock, flags);
 
+		if (priv->cfg->ops->lib->update_bcast_station)
+			ret = priv->cfg->ops->lib->update_bcast_station(priv);
+
  set_ch_out:
 		/* The list of supported rates and rate mask can be different
 		 * for each band; since the band may have changed, reset
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index cdcb51d..15930e0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -196,6 +196,7 @@  struct iwl_lib_ops {
 	/* station management */
 	int (*manage_ibss_station)(struct iwl_priv *priv,
 				   struct ieee80211_vif *vif, bool add);
+	int (*update_bcast_station)(struct iwl_priv *priv);
 	/* recover from tx queue stall */
 	void (*recover_from_tx_stall)(unsigned long data);
 	/* check for plcp health */
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 6a9cd08..9511f03 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -1259,6 +1259,36 @@  int iwl_alloc_bcast_station(struct iwl_priv *priv, bool init_lq)
 }
 EXPORT_SYMBOL_GPL(iwl_alloc_bcast_station);
 
+/**
+ * iwl_update_bcast_station - update broadcast station's LQ command
+ *
+ * Only used by iwlagn. Placed here to have all bcast station management
+ * code together.
+ */
+int iwl_update_bcast_station(struct iwl_priv *priv)
+{
+	unsigned long flags;
+	struct iwl_link_quality_cmd *link_cmd;
+	u8 sta_id = priv->hw_params.bcast_sta_id;
+
+	link_cmd = iwl_sta_alloc_lq(priv, sta_id);
+	if (!link_cmd) {
+		IWL_ERR(priv, "Unable to initialize rate scaling for bcast station.\n");
+		return -ENOMEM;
+	}
+
+	spin_lock_irqsave(&priv->sta_lock, flags);
+	if (priv->stations[sta_id].lq)
+		kfree(priv->stations[sta_id].lq);
+	else
+		IWL_DEBUG_INFO(priv, "Bcast station rate scaling has not been initialized yet.\n");
+	priv->stations[sta_id].lq = link_cmd;
+	spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(iwl_update_bcast_station);
+
 void iwl_dealloc_bcast_station(struct iwl_priv *priv)
 {
 	unsigned long flags;
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.h b/drivers/net/wireless/iwlwifi/iwl-sta.h
index 619bb99..ba95b1a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.h
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.h
@@ -60,6 +60,7 @@  void iwl_restore_stations(struct iwl_priv *priv);
 void iwl_clear_ucode_stations(struct iwl_priv *priv);
 int iwl_alloc_bcast_station(struct iwl_priv *priv, bool init_lq);
 void iwl_dealloc_bcast_station(struct iwl_priv *priv);
+int iwl_update_bcast_station(struct iwl_priv *priv);
 int iwl_get_free_ucode_key_index(struct iwl_priv *priv);
 int iwl_send_add_sta(struct iwl_priv *priv,
 		     struct iwl_addsta_cmd *sta, u8 flags);