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path: root/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-3945-rs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945-rs.c102
1 files changed, 28 insertions, 74 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index cbb0585083a..d4b49883b30 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -42,38 +42,6 @@
#define RS_NAME "iwl-3945-rs"
-struct iwl3945_rate_scale_data {
- u64 data;
- s32 success_counter;
- s32 success_ratio;
- s32 counter;
- s32 average_tpt;
- unsigned long stamp;
-};
-
-struct iwl3945_rs_sta {
- spinlock_t lock;
- struct iwl_priv *priv;
- s32 *expected_tpt;
- unsigned long last_partial_flush;
- unsigned long last_flush;
- u32 flush_time;
- u32 last_tx_packets;
- u32 tx_packets;
- u8 tgg;
- u8 flush_pending;
- u8 start_rate;
- u8 ibss_sta_added;
- struct timer_list rate_scale_flush;
- struct iwl3945_rate_scale_data win[IWL_RATE_COUNT_3945];
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct dentry *rs_sta_dbgfs_stats_table_file;
-#endif
-
- /* used to be in sta_info */
- int last_txrate_idx;
-};
-
static s32 iwl3945_expected_tpt_g[IWL_RATE_COUNT_3945] = {
7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202
};
@@ -370,6 +338,28 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
IWL_DEBUG_RATE(priv, "enter\n");
+ spin_lock_init(&rs_sta->lock);
+
+ rs_sta->priv = priv;
+
+ rs_sta->start_rate = IWL_RATE_INVALID;
+
+ /* default to just 802.11b */
+ rs_sta->expected_tpt = iwl3945_expected_tpt_b;
+
+ rs_sta->last_partial_flush = jiffies;
+ rs_sta->last_flush = jiffies;
+ rs_sta->flush_time = IWL_RATE_FLUSH;
+ rs_sta->last_tx_packets = 0;
+ rs_sta->ibss_sta_added = 0;
+
+ init_timer(&rs_sta->rate_scale_flush);
+ rs_sta->rate_scale_flush.data = (unsigned long)rs_sta;
+ rs_sta->rate_scale_flush.function = iwl3945_bg_rate_scale_flush;
+
+ for (i = 0; i < IWL_RATE_COUNT_3945; i++)
+ iwl3945_clear_window(&rs_sta->win[i]);
+
/* TODO: what is a good starting rate for STA? About middle? Maybe not
* the lowest or the highest rate.. Could consider using RSSI from
* previous packets? Need to have IEEE 802.1X auth succeed immediately
@@ -409,45 +399,11 @@ static void *rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp)
{
struct iwl3945_rs_sta *rs_sta;
struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
- struct iwl_priv *priv = iwl_priv;
- int i;
-
- /*
- * XXX: If it's using sta->drv_priv anyway, it might
- * as well just put all the information there.
- */
+ struct iwl_priv *priv __maybe_unused = iwl_priv;
IWL_DEBUG_RATE(priv, "enter\n");
- rs_sta = kzalloc(sizeof(struct iwl3945_rs_sta), gfp);
- if (!rs_sta) {
- IWL_DEBUG_RATE(priv, "leave: ENOMEM\n");
- return NULL;
- }
-
- psta->rs_sta = rs_sta;
-
- spin_lock_init(&rs_sta->lock);
-
- rs_sta->priv = priv;
-
- rs_sta->start_rate = IWL_RATE_INVALID;
-
- /* default to just 802.11b */
- rs_sta->expected_tpt = iwl3945_expected_tpt_b;
-
- rs_sta->last_partial_flush = jiffies;
- rs_sta->last_flush = jiffies;
- rs_sta->flush_time = IWL_RATE_FLUSH;
- rs_sta->last_tx_packets = 0;
- rs_sta->ibss_sta_added = 0;
-
- init_timer(&rs_sta->rate_scale_flush);
- rs_sta->rate_scale_flush.data = (unsigned long)rs_sta;
- rs_sta->rate_scale_flush.function = &iwl3945_bg_rate_scale_flush;
-
- for (i = 0; i < IWL_RATE_COUNT_3945; i++)
- iwl3945_clear_window(&rs_sta->win[i]);
+ rs_sta = &psta->rs_sta;
IWL_DEBUG_RATE(priv, "leave\n");
@@ -458,14 +414,11 @@ static void rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta,
void *priv_sta)
{
struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
- struct iwl3945_rs_sta *rs_sta = priv_sta;
+ struct iwl3945_rs_sta *rs_sta = &psta->rs_sta;
struct iwl_priv *priv __maybe_unused = rs_sta->priv;
- psta->rs_sta = NULL;
-
IWL_DEBUG_RATE(priv, "enter\n");
del_timer_sync(&rs_sta->rate_scale_flush);
- kfree(rs_sta);
IWL_DEBUG_RATE(priv, "leave\n");
}
@@ -960,14 +913,15 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
rcu_read_lock();
- sta = ieee80211_find_sta(hw, priv->stations[sta_id].sta.sta.addr);
+ sta = ieee80211_find_sta(priv->vif,
+ priv->stations[sta_id].sta.sta.addr);
if (!sta) {
rcu_read_unlock();
return;
}
psta = (void *) sta->drv_priv;
- rs_sta = psta->rs_sta;
+ rs_sta = &psta->rs_sta;
spin_lock_irqsave(&rs_sta->lock, flags);