1 files changed, 58 insertions, 96 deletions

diff --git a/package/mac80211/src/net/mac80211/rc80211_simple.c b/package/mac80211/src/net/mac80211/rc80211_simple.c
index ef91ce428a..c4678905a1 100644
--- a/package/mac80211/src/net/mac80211/rc80211_simple.c
+++ b/package/mac80211/src/net/mac80211/rc80211_simple.c
@@ -7,13 +7,13 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/netdevice.h>
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/skbuff.h>
 #include <linux/compiler.h>
+#include <linux/module.h>
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
@@ -24,19 +24,19 @@
 /* This is a minimal implementation of TX rate controlling that can be used
  * as the default when no improved mechanisms are available. */
 
+#define RATE_CONTROL_NUM_DOWN 20
+#define RATE_CONTROL_NUM_UP   15
 
 #define RATE_CONTROL_EMERG_DEC 2
 #define RATE_CONTROL_INTERVAL (HZ / 20)
 #define RATE_CONTROL_MIN_TX 10
 
-MODULE_ALIAS("rc80211_default");
-
 static void rate_control_rate_inc(struct ieee80211_local *local,
 				  struct sta_info *sta)
 {
 	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_hw_mode *mode;
-	int i = sta->txrate;
+	struct ieee80211_supported_band *sband;
+	int i = sta->txrate_idx;
 	int maxrate;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
@@ -45,18 +45,17 @@ static void rate_control_rate_inc(struct ieee80211_local *local,
 		return;
 	}
 
-	mode = local->oper_hw_mode;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 	maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
 
-	if (i > mode->num_rates)
-		i = mode->num_rates - 2;
+	if (i > sband->n_bitrates)
+		i = sband->n_bitrates - 2;
 
-	while (i + 1 < mode->num_rates) {
+	while (i + 1 < sband->n_bitrates) {
 		i++;
-		if (sta->supp_rates & BIT(i) &&
-		    mode->rates[i].flags & IEEE80211_RATE_SUPPORTED &&
+		if (rate_supported(sta, sband->band, i) &&
 		    (maxrate < 0 || i <= maxrate)) {
-			sta->txrate = i;
+			sta->txrate_idx = i;
 			break;
 		}
 	}
@@ -67,8 +66,8 @@ static void rate_control_rate_dec(struct ieee80211_local *local,
 				  struct sta_info *sta)
 {
 	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_hw_mode *mode;
-	int i = sta->txrate;
+	struct ieee80211_supported_band *sband;
+	int i = sta->txrate_idx;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
 	if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
@@ -76,40 +75,19 @@ static void rate_control_rate_dec(struct ieee80211_local *local,
 		return;
 	}
 
-	mode = local->oper_hw_mode;
-	if (i > mode->num_rates)
-		i = mode->num_rates;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	if (i > sband->n_bitrates)
+		i = sband->n_bitrates;
 
 	while (i > 0) {
 		i--;
-		if (sta->supp_rates & BIT(i) &&
-		    mode->rates[i].flags & IEEE80211_RATE_SUPPORTED) {
-			sta->txrate = i;
+		if (rate_supported(sta, sband->band, i)) {
+			sta->txrate_idx = i;
 			break;
 		}
 	}
 }
 
-
-static struct ieee80211_rate *
-rate_control_lowest_rate(struct ieee80211_local *local,
-			 struct ieee80211_hw_mode *mode)
-{
-	int i;
-
-	for (i = 0; i < mode->num_rates; i++) {
-		struct ieee80211_rate *rate = &mode->rates[i];
-
-		if (rate->flags & IEEE80211_RATE_SUPPORTED)
-			return rate;
-	}
-
-	printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates "
-	       "found\n");
-	return &mode->rates[0];
-}
-
-
 struct global_rate_control {
 	int dummy;
 };
@@ -188,7 +166,7 @@ static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
 		} else if (per_failed < RATE_CONTROL_NUM_UP) {
 			rate_control_rate_inc(local, sta);
 		}
-		srctrl->tx_avg_rate_sum += status->control.rate->rate;
+		srctrl->tx_avg_rate_sum += status->control.tx_rate->bitrate;
 		srctrl->tx_avg_rate_num++;
 		srctrl->tx_num_failures = 0;
 		srctrl->tx_num_xmit = 0;
@@ -201,9 +179,10 @@ static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
 		srctrl->avg_rate_update = jiffies;
 		if (srctrl->tx_avg_rate_num > 0) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-			printk(KERN_DEBUG "%s: STA " MAC_FMT " Average rate: "
+			DECLARE_MAC_BUF(mac);
+			printk(KERN_DEBUG "%s: STA %s Average rate: "
 			       "%d (%d/%d)\n",
-			       dev->name, MAC_ARG(sta->addr),
+			       dev->name, print_mac(mac, sta->addr),
 			       srctrl->tx_avg_rate_sum /
 			       srctrl->tx_avg_rate_num,
 			       srctrl->tx_avg_rate_sum,
@@ -218,56 +197,47 @@ static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
 }
 
 
-static struct ieee80211_rate *
+static void
 rate_control_simple_get_rate(void *priv, struct net_device *dev,
+			     struct ieee80211_supported_band *sband,
 			     struct sk_buff *skb,
-			     struct rate_control_extra *extra)
+			     struct rate_selection *sel)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct ieee80211_hw_mode *mode = extra->mode;
+	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
-	int rateidx, nonerp_idx;
+	int rateidx;
 	u16 fc;
 
-	memset(extra, 0, sizeof(*extra));
+	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 ||
-	    (hdr->addr1[0] & 0x01)) {
-		/* Send management frames and broadcast/multicast data using
-		 * lowest rate. */
-		/* TODO: this could probably be improved.. */
-		return rate_control_lowest_rate(local, mode);
+	    is_multicast_ether_addr(hdr->addr1) || !sta) {
+		sel->rate = rate_lowest(local, sband, sta);
+		if (sta)
+			sta_info_put(sta);
+		return;
 	}
 
-	sta = sta_info_get(local, hdr->addr1);
-
-	if (!sta)
-		return rate_control_lowest_rate(local, mode);
-
+	/* 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 = sdata->bss->force_unicast_rateidx;
+		sta->txrate_idx = sdata->bss->force_unicast_rateidx;
 
-	rateidx = sta->txrate;
+	rateidx = sta->txrate_idx;
 
-	if (rateidx >= mode->num_rates)
-		rateidx = mode->num_rates - 1;
+	if (rateidx >= sband->n_bitrates)
+		rateidx = sband->n_bitrates - 1;
 
-	sta->last_txrate = rateidx;
-	nonerp_idx = rateidx;
-	while (nonerp_idx > 0 &&
-	       ((mode->rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
-		!(mode->rates[nonerp_idx].flags & IEEE80211_RATE_SUPPORTED) ||
-		!(sta->supp_rates & BIT(nonerp_idx))))
-		nonerp_idx--;
-	extra->nonerp = &mode->rates[nonerp_idx];
+	sta->last_txrate_idx = rateidx;
 
 	sta_info_put(sta);
 
-	return &mode->rates[rateidx];
+	sel->rate = &sband->bitrates[rateidx];
 }
 
 
@@ -275,21 +245,15 @@ static void rate_control_simple_rate_init(void *priv, void *priv_sta,
 					  struct ieee80211_local *local,
 					  struct sta_info *sta)
 {
-	struct ieee80211_hw_mode *mode;
-	int i;
-	sta->txrate = 0;
-	mode = local->oper_hw_mode;
+	struct ieee80211_supported_band *sband;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
 	/* TODO: This routine should consider using RSSI from previous packets
 	 * as we need to have IEEE 802.1X auth succeed immediately after assoc..
 	 * Until that method is implemented, we will use the lowest supported rate
 	 * as a workaround, */
-	for (i = 0; i < mode->num_rates; i++) {
-		if ((sta->supp_rates & BIT(i)) &&
-		    (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED)) {
-			sta->txrate = i;
-			break;
-		}
-	}
+	sta->txrate_idx = rate_lowest_index(local, sband, sta);
 }
 
 
@@ -393,8 +357,7 @@ static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
 }
 #endif
 
-static struct rate_control_ops rate_control_simple = {
-	.module = THIS_MODULE,
+static struct rate_control_ops mac80211_rcsimple = {
 	.name = "simple",
 	.tx_status = rate_control_simple_tx_status,
 	.get_rate = rate_control_simple_get_rate,
@@ -410,21 +373,20 @@ static struct rate_control_ops rate_control_simple = {
 #endif
 };
 
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Simple rate control algorithm");
 
-static int __init rate_control_simple_init(void)
+int __init rc80211_simple_init(void)
 {
-	return ieee80211_rate_control_register(&rate_control_simple);
+	return ieee80211_rate_control_register(&mac80211_rcsimple);
 }
 
-
-static void __exit rate_control_simple_exit(void)
+void rc80211_simple_exit(void)
 {
-	ieee80211_rate_control_unregister(&rate_control_simple);
+	ieee80211_rate_control_unregister(&mac80211_rcsimple);
 }
 
-
-subsys_initcall(rate_control_simple_init);
-module_exit(rate_control_simple_exit);
-
-MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
-MODULE_LICENSE("GPL");
+#ifdef CONFIG_MAC80211_RC_SIMPLE_MODULE
+module_init(rc80211_simple_init);
+module_exit(rc80211_simple_exit);
+#endif