1 files changed, 49 insertions, 151 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 10c64bdb314..6fc5e7361f2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -36,8 +36,6 @@
 
 #include <linux/workqueue.h>
 
-#include "../net/mac80211/rate.h"
-
 #include "iwl-3945.h"
 
 #define RS_NAME "iwl-3945-rs"
@@ -65,6 +63,9 @@ struct iwl3945_rs_sta {
         u8 ibss_sta_added;
         struct timer_list rate_scale_flush;
         struct iwl3945_rate_scale_data win[IWL_RATE_COUNT];
+
+        /* used to be in sta_info */
+        int last_txrate_idx;
 };
 
 static s32 iwl3945_expected_tpt_g[IWL_RATE_COUNT] = {
@@ -316,9 +317,10 @@ static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta,
         }
 }
 
-static void rs_rate_init(void *priv_rate, void *priv_sta,
-                         struct ieee80211_local *local, struct sta_info *sta)
+static void rs_rate_init(void *priv, struct ieee80211_supported_band *sband,
+                         struct ieee80211_sta *sta, void *priv_sta)
 {
+        struct iwl3945_rs_sta *rs_sta = priv_sta;
         int i;
 
         IWL_DEBUG_RATE("enter\n");
@@ -329,24 +331,22 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
          * after assoc.. */
 
         for (i = IWL_RATE_COUNT - 1; i >= 0; i--) {
-                if (sta->supp_rates[local->hw.conf.channel->band] & (1 << i)) {
-                        sta->txrate_idx = i;
+                if (sta->supp_rates[sband->band] & (1 << i)) {
+                        rs_sta->last_txrate_idx = i;
                         break;
                 }
         }
 
-        sta->last_txrate_idx = sta->txrate_idx;
-
         /* For 5 GHz band it start at IWL_FIRST_OFDM_RATE */
-        if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
-                sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
+        if (sband->band == IEEE80211_BAND_5GHZ)
+                rs_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
 
         IWL_DEBUG_RATE("leave\n");
 }
 
-static void *rs_alloc(struct ieee80211_local *local)
+static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
 {
-        return local->hw.priv;
+        return hw->priv;
 }
 
 /* rate scale requires free function to be implemented */
@@ -354,17 +354,24 @@ static void rs_free(void *priv)
 {
         return;
 }
+
 static void rs_clear(void *priv)
 {
         return;
 }
 
 
-static void *rs_alloc_sta(void *priv, gfp_t gfp)
+static void *rs_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
 {
         struct iwl3945_rs_sta *rs_sta;
+        struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
         int i;
 
+        /*
+         * XXX: If it's using sta->drv_priv anyway, it might
+         *      as well just put all the information there.
+         */
+
         IWL_DEBUG_RATE("enter\n");
 
         rs_sta = kzalloc(sizeof(struct iwl3945_rs_sta), gfp);
@@ -373,6 +380,8 @@ static void *rs_alloc_sta(void *priv, gfp_t gfp)
                 return NULL;
         }
 
+        psta->rs_sta = rs_sta;
+
         spin_lock_init(&rs_sta->lock);
 
         rs_sta->start_rate = IWL_RATE_INVALID;
@@ -398,10 +407,14 @@ static void *rs_alloc_sta(void *priv, gfp_t gfp)
         return rs_sta;
 }
 
-static void rs_free_sta(void *priv, void *priv_sta)
+static void rs_free_sta(void *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;
 
+        psta->rs_sta = NULL;
+
         IWL_DEBUG_RATE("enter\n");
         del_timer_sync(&rs_sta->rate_scale_flush);
         kfree(rs_sta);
@@ -443,26 +456,19 @@ static int rs_adjust_next_rate(struct iwl3945_priv *priv, int rate)
  * NOTE: Uses iwl3945_priv->retry_rate for the # of retries attempted by
  * the hardware for each rate.
  */
-static void rs_tx_status(void *priv_rate,
-                         struct net_device *dev,
+static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband,
+                         struct ieee80211_sta *sta, void *priv_sta,
                          struct sk_buff *skb)
 {
         u8 retries, current_count;
         int scale_rate_index, first_index, last_index;
         unsigned long flags;
-        struct sta_info *sta;
-        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
         struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
-        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-        struct iwl3945_rs_sta *rs_sta;
-        struct ieee80211_supported_band *sband;
+        struct iwl3945_rs_sta *rs_sta = priv_sta;
         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
         IWL_DEBUG_RATE("enter\n");
 
-        sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-
         retries = info->status.retry_count;
         first_index = sband->bitrates[info->tx_rate_idx].hw_value;
         if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) {
@@ -470,17 +476,11 @@ static void rs_tx_status(void *priv_rate,
                 return;
         }
 
-        rcu_read_lock();
-
-        sta = sta_info_get(local, hdr->addr1);
-        if (!sta || !sta->rate_ctrl_priv) {
-                rcu_read_unlock();
+        if (!priv_sta) {
                 IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
                 return;
         }
 
-        rs_sta = (void *)sta->rate_ctrl_priv;
-
         rs_sta->tx_packets++;
 
         scale_rate_index = first_index;
@@ -547,8 +547,6 @@ static void rs_tx_status(void *priv_rate,
 
         spin_unlock_irqrestore(&rs_sta->lock, flags);
 
-        rcu_read_unlock();
-
         IWL_DEBUG_RATE("leave\n");
 
         return;
@@ -632,16 +630,15 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta,
  * rate table and must reference the driver allocated rate table
  *
  */
-static void rs_get_rate(void *priv_rate, struct net_device *dev,
-                        struct ieee80211_supported_band *sband,
-                        struct sk_buff *skb,
-                        struct rate_selection *sel)
+static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
+                        struct ieee80211_sta *sta, void *priv_sta,
+                        struct sk_buff *skb, struct rate_selection *sel)
 {
         u8 low = IWL_RATE_INVALID;
         u8 high = IWL_RATE_INVALID;
         u16 high_low;
         int index;
-        struct iwl3945_rs_sta *rs_sta;
+        struct iwl3945_rs_sta *rs_sta = priv_sta;
         struct iwl3945_rate_scale_data *window = NULL;
         int current_tpt = IWL_INV_TPT;
         int low_tpt = IWL_INV_TPT;
@@ -649,40 +646,31 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
         u32 fail_count;
         s8 scale_action = 0;
         unsigned long flags;
-        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-        struct sta_info *sta;
         u16 fc, rate_mask;
-        struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
+        struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_r;
         DECLARE_MAC_BUF(mac);
 
         IWL_DEBUG_RATE("enter\n");
 
-        rcu_read_lock();
-
-        sta = sta_info_get(local, hdr->addr1);
-
         /* Send management frames and broadcast/multicast data using lowest
          * rate. */
         fc = le16_to_cpu(hdr->frame_control);
         if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
             is_multicast_ether_addr(hdr->addr1) ||
-            !sta || !sta->rate_ctrl_priv) {
+            !sta || !priv_sta) {
                 IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
-                sel->rate_idx = rate_lowest_index(local, sband, sta);
-                rcu_read_unlock();
+                sel->rate_idx = rate_lowest_index(sband, sta);
                 return;
         }
 
         rate_mask = sta->supp_rates[sband->band];
-        index = min(sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT - 1);
+        index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT - 1);
 
         if (sband->band == IEEE80211_BAND_5GHZ)
                 rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
 
-        rs_sta = (void *)sta->rate_ctrl_priv;
-
-        if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
+        if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
             !rs_sta->ibss_sta_added) {
                 u8 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
 
@@ -803,17 +791,13 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
 
  out:
 
-        sta->last_txrate_idx = index;
+        rs_sta->last_txrate_idx = index;
         if (sband->band == IEEE80211_BAND_5GHZ)
-                sta->txrate_idx = sta->last_txrate_idx - IWL_FIRST_OFDM_RATE;
+                sel->rate_idx = rs_sta->last_txrate_idx - IWL_FIRST_OFDM_RATE;
         else
-                sta->txrate_idx = sta->last_txrate_idx;
-
-        rcu_read_unlock();
+                sel->rate_idx = rs_sta->last_txrate_idx;
 
         IWL_DEBUG_RATE("leave: %d\n", index);
-
-        sel->rate_idx = sta->txrate_idx;
 }
 
 static struct rate_control_ops rs_ops = {
@@ -829,114 +813,28 @@ static struct rate_control_ops rs_ops = {
         .free_sta = rs_free_sta,
 };
 
-int iwl3945_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
-{
-        struct ieee80211_local *local = hw_to_local(hw);
-        struct iwl3945_priv *priv = hw->priv;
-        struct iwl3945_rs_sta *rs_sta;
-        struct sta_info *sta;
-        unsigned long flags;
-        int count = 0, i;
-        u32 samples = 0, success = 0, good = 0;
-        unsigned long now = jiffies;
-        u32 max_time = 0;
-
-        rcu_read_lock();
-
-        sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
-        if (!sta || !sta->rate_ctrl_priv) {
-                if (sta)
-                        IWL_DEBUG_RATE("leave - no private rate data!\n");
-                else
-                        IWL_DEBUG_RATE("leave - no station!\n");
-                rcu_read_unlock();
-                return sprintf(buf, "station %d not found\n", sta_id);
-        }
-
-        rs_sta = (void *)sta->rate_ctrl_priv;
-        spin_lock_irqsave(&rs_sta->lock, flags);
-        i = IWL_RATE_54M_INDEX;
-        while (1) {
-                u64 mask;
-                int j;
-
-                count +=
-                    sprintf(&buf[count], " %2dMbs: ", iwl3945_rates[i].ieee / 2);
-
-                mask = (1ULL << (IWL_RATE_MAX_WINDOW - 1));
-                for (j = 0; j < IWL_RATE_MAX_WINDOW; j++, mask >>= 1)
-                        buf[count++] =
-                            (rs_sta->win[i].data & mask) ? '1' : '0';
-
-                samples += rs_sta->win[i].counter;
-                good += rs_sta->win[i].success_counter;
-                success += rs_sta->win[i].success_counter *
-                                                iwl3945_rates[i].ieee;
-
-                if (rs_sta->win[i].stamp) {
-                        int delta =
-                            jiffies_to_msecs(now - rs_sta->win[i].stamp);
-
-                        if (delta > max_time)
-                                max_time = delta;
-
-                        count += sprintf(&buf[count], "%5dms\n", delta);
-                } else
-                        buf[count++] = '\n';
-
-                j = iwl3945_get_prev_ieee_rate(i);
-                if (j == i)
-                        break;
-                i = j;
-        }
-        spin_unlock_irqrestore(&rs_sta->lock, flags);
-        rcu_read_unlock();
-
-        /* Display the average rate of all samples taken.
-         *
-         * NOTE:  We multiple # of samples by 2 since the IEEE measurement
-         * added from iwl3945_rates is actually 2X the rate */
-        if (samples)
-                count += sprintf(
-                        &buf[count],
-                        "\nAverage rate is %3d.%02dMbs over last %4dms\n"
-                        "%3d%% success (%d good packets over %d tries)\n",
-                        success / (2 * samples), (success * 5 / samples) % 10,
-                        max_time, good * 100 / samples, good, samples);
-        else
-                count += sprintf(&buf[count], "\nAverage rate: 0Mbs\n");
-
-        return count;
-}
-
 void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
 {
         struct iwl3945_priv *priv = hw->priv;
         s32 rssi = 0;
         unsigned long flags;
-        struct ieee80211_local *local = hw_to_local(hw);
         struct iwl3945_rs_sta *rs_sta;
-        struct sta_info *sta;
+        struct ieee80211_sta *sta;
+        struct iwl3945_sta_priv *psta;
 
         IWL_DEBUG_RATE("enter\n");
 
-        if (!local->rate_ctrl->ops->name ||
-            strcmp(local->rate_ctrl->ops->name, RS_NAME)) {
-                IWL_WARNING("iwl-3945-rs not selected as rate control algo!\n");
-                IWL_DEBUG_RATE("leave - mac80211 picked the wrong RC algo.\n");
-                return;
-        }
-
         rcu_read_lock();
 
-        sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
-        if (!sta || !sta->rate_ctrl_priv) {
+        sta = ieee80211_find_sta(hw, priv->stations[sta_id].sta.sta.addr);
+        psta = (void *) sta->drv_priv;
+        if (!sta || !psta) {
                 IWL_DEBUG_RATE("leave - no private rate data!\n");
                 rcu_read_unlock();
                 return;
         }
 
-        rs_sta = (void *)sta->rate_ctrl_priv;
+        rs_sta = psta->rs_sta;
 
         spin_lock_irqsave(&rs_sta->lock, flags);