Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-omap-h63xx.git] / net / mac80211 / rc80211_pid_algo.c

diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index a849b745bdb56b6f83b19a98e73f069f42341621..a914ba73ccf56a3d828fa88a851dc44eebfd8fdb 100644 (file)
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -237,8 +237,7 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
 }
 
 static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
-                                      struct sk_buff *skb,
-                                      struct ieee80211_tx_status *status)
+                                      struct sk_buff *skb)
 {
        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -248,6 +247,7 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
        struct rc_pid_sta_info *spinfo;
        unsigned long period;
        struct ieee80211_supported_band *sband;
+       struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
        rcu_read_lock();
 
@@ -259,35 +259,35 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
 
        /* Don't update the state if we're not controlling the rate. */
        sdata = sta->sdata;
-       if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
-               sta->txrate_idx = sdata->bss->max_ratectrl_rateidx;
+       if (sdata->force_unicast_rateidx > -1) {
+               sta->txrate_idx = sdata->max_ratectrl_rateidx;
                goto unlock;
        }
 
        /* Ignore all frames that were sent with a different rate than the rate
         * we currently advise mac80211 to use. */
-       if (status->control.tx_rate != &sband->bitrates[sta->txrate_idx])
+       if (info->tx_rate_idx != sta->txrate_idx)
                goto unlock;
 
        spinfo = sta->rate_ctrl_priv;
        spinfo->tx_num_xmit++;
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-       rate_control_pid_event_tx_status(&spinfo->events, status);
+       rate_control_pid_event_tx_status(&spinfo->events, info);
 #endif
 
        /* We count frames that totally failed to be transmitted as two bad
         * frames, those that made it out but had some retries as one good and
         * one bad frame. */
-       if (status->excessive_retries) {
+       if (info->status.excessive_retries) {
                spinfo->tx_num_failed += 2;
                spinfo->tx_num_xmit++;
-       } else if (status->retry_count) {
+       } else if (info->status.retry_count) {
                spinfo->tx_num_failed++;
                spinfo->tx_num_xmit++;
        }
 
-       if (status->excessive_retries) {
+       if (info->status.excessive_retries) {
                sta->tx_retry_failed++;
                sta->tx_num_consecutive_failures++;
                sta->tx_num_mpdu_fail++;
@@ -295,8 +295,8 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
                sta->tx_num_consecutive_failures = 0;
                sta->tx_num_mpdu_ok++;
        }
-       sta->tx_retry_count += status->retry_count;
-       sta->tx_num_mpdu_fail += status->retry_count;
+       sta->tx_retry_count += info->status.retry_count;
+       sta->tx_num_mpdu_fail += info->status.retry_count;
 
        /* Update PID controller state. */
        period = (HZ * pinfo->sampling_period + 500) / 1000;
@@ -330,15 +330,15 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
        fc = le16_to_cpu(hdr->frame_control);
        if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
            is_multicast_ether_addr(hdr->addr1) || !sta) {
-               sel->rate = rate_lowest(local, sband, sta);
+               sel->rate_idx = rate_lowest_index(local, sband, sta);
                rcu_read_unlock();
                return;
        }
 
        /* If a forced rate is in effect, select it. */
        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-       if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
-               sta->txrate_idx = sdata->bss->force_unicast_rateidx;
+       if (sdata->force_unicast_rateidx > -1)
+               sta->txrate_idx = sdata->force_unicast_rateidx;
 
        rateidx = sta->txrate_idx;
 
@@ -349,7 +349,7 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
 
        rcu_read_unlock();
 
-       sel->rate = &sband->bitrates[rateidx];
+       sel->rate_idx = rateidx;
 
 #ifdef CONFIG_MAC80211_DEBUGFS
        rate_control_pid_event_tx_rate(
@@ -398,13 +398,25 @@ static void *rate_control_pid_alloc(struct ieee80211_local *local)
                return NULL;
        }
 
+       pinfo->target = RC_PID_TARGET_PF;
+       pinfo->sampling_period = RC_PID_INTERVAL;
+       pinfo->coeff_p = RC_PID_COEFF_P;
+       pinfo->coeff_i = RC_PID_COEFF_I;
+       pinfo->coeff_d = RC_PID_COEFF_D;
+       pinfo->smoothing_shift = RC_PID_SMOOTHING_SHIFT;
+       pinfo->sharpen_factor = RC_PID_SHARPENING_FACTOR;
+       pinfo->sharpen_duration = RC_PID_SHARPENING_DURATION;
+       pinfo->norm_offset = RC_PID_NORM_OFFSET;
+       pinfo->rinfo = rinfo;
+       pinfo->oldrate = 0;
+
        /* Sort the rates. This is optimized for the most common case (i.e.
         * almost-sorted CCK+OFDM rates). Kind of bubble-sort with reversed
         * mapping too. */
        for (i = 0; i < sband->n_bitrates; i++) {
                rinfo[i].index = i;
                rinfo[i].rev_index = i;
-               if (pinfo->fast_start)
+               if (RC_PID_FAST_START)
                        rinfo[i].diff = 0;
                else
                        rinfo[i].diff = i * pinfo->norm_offset;
@@ -425,19 +437,6 @@ static void *rate_control_pid_alloc(struct ieee80211_local *local)
                        break;
        }
 
-       pinfo->target = RC_PID_TARGET_PF;
-       pinfo->sampling_period = RC_PID_INTERVAL;
-       pinfo->coeff_p = RC_PID_COEFF_P;
-       pinfo->coeff_i = RC_PID_COEFF_I;
-       pinfo->coeff_d = RC_PID_COEFF_D;
-       pinfo->smoothing_shift = RC_PID_SMOOTHING_SHIFT;
-       pinfo->sharpen_factor = RC_PID_SHARPENING_FACTOR;
-       pinfo->sharpen_duration = RC_PID_SHARPENING_DURATION;
-       pinfo->norm_offset = RC_PID_NORM_OFFSET;
-       pinfo->fast_start = RC_PID_FAST_START;
-       pinfo->rinfo = rinfo;
-       pinfo->oldrate = 0;
-
 #ifdef CONFIG_MAC80211_DEBUGFS
        de = &pinfo->dentries;
        de->dir = debugfs_create_dir("rc80211_pid",
@@ -465,9 +464,6 @@ static void *rate_control_pid_alloc(struct ieee80211_local *local)
        de->norm_offset = debugfs_create_u32("norm_offset",
                                             S_IRUSR | S_IWUSR, de->dir,
                                             &pinfo->norm_offset);
-       de->fast_start = debugfs_create_bool("fast_start",
-                                            S_IRUSR | S_IWUSR, de->dir,
-                                            &pinfo->fast_start);
 #endif
 
        return pinfo;
@@ -479,7 +475,6 @@ static void rate_control_pid_free(void *priv)
 #ifdef CONFIG_MAC80211_DEBUGFS
        struct rc_pid_debugfs_entries *de = &pinfo->dentries;
 
-       debugfs_remove(de->fast_start);
        debugfs_remove(de->norm_offset);
        debugfs_remove(de->sharpen_duration);
        debugfs_remove(de->sharpen_factor);
@@ -540,11 +535,6 @@ static struct rate_control_ops mac80211_rcpid = {
 #endif
 };
 
-MODULE_DESCRIPTION("PID controller based rate control algorithm");
-MODULE_AUTHOR("Stefano Brivio");
-MODULE_AUTHOR("Mattias Nissler");
-MODULE_LICENSE("GPL");
-
 int __init rc80211_pid_init(void)
 {
        return ieee80211_rate_control_register(&mac80211_rcpid);
@@ -554,8 +544,3 @@ void rc80211_pid_exit(void)
 {
        ieee80211_rate_control_unregister(&mac80211_rcpid);
 }
-
-#ifdef CONFIG_MAC80211_RC_PID_MODULE
-module_init(rc80211_pid_init);
-module_exit(rc80211_pid_exit);
-#endif