commit e6a9854b05c1a6af1308fe2b8c68f35abf28a3ee
author Johannes Berg <johannes@sipsolutions.net> Tue Oct 21 12:40:02 2008 +0200
committer John W. Linville <linville@tuxdriver.com> Fri Oct 31 19:00:23 2008 -0400
tree 241f611f8194586ccabf61bacb060508773b9d05
parent cb121bad67a32cde37adc2729b7e18aa4fd3063e

mac80211/drivers: rewrite the rate control API

So after the previous changes we were still unhappy with how
convoluted the API is and decided to make things simpler for
everybody. This completely changes the rate control API, now
taking into account 802.11n with MCS rates and more control,
most drivers don't support that though.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath9k/xmit.c

diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index ba818cc..9fa3954 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -168,7 +168,9 @@
 
 	hdr = (struct ieee80211_hdr *)skb->data;
 	fc = hdr->frame_control;
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 
 	if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) {
 		txctl->use_minrate = 1;
@@ -288,13 +290,16 @@
 
 	if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
 		txctl->flags |= ATH9K_TXDESC_NOACK;
-	if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)
+
+	if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
 		txctl->flags |= ATH9K_TXDESC_RTSENA;
 
 	/*
 	 * Setup for rate calculations.
 	 */
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 	rcs = tx_info_priv->rcs;
 
 	if (ieee80211_is_data(fc) && !txctl->use_minrate) {
@@ -855,7 +860,9 @@
 
 	skb = (struct sk_buff *)bf->bf_mpdu;
 	tx_info = IEEE80211_SKB_CB(skb);
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 	memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0]));
 
 	/* update starting sequence number for subsequent ADDBA request */
@@ -1249,8 +1256,9 @@
 		}
 		skb = bf->bf_mpdu;
 		tx_info = IEEE80211_SKB_CB(skb);
-		tx_info_priv = (struct ath_tx_info_priv *)
-			tx_info->driver_data[0];
+
+		/* XXX: HACK! */
+		tx_info_priv = (struct ath_tx_info_priv *) tx_info->control.vif;
 		if (ds->ds_txstat.ts_status & ATH9K_TXERR_FILT)
 			tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
 		if ((ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) == 0 &&
@@ -1431,7 +1439,8 @@
 
 	skb = (struct sk_buff *)bf->bf_mpdu;
 	tx_info = IEEE80211_SKB_CB(skb);
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 	memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0]));
 
 	/* Add sub-frame to BAW */
@@ -1466,7 +1475,7 @@
 	skb = (struct sk_buff *)bf->bf_mpdu;
 	tx_info = IEEE80211_SKB_CB(skb);
 	tx_info_priv = (struct ath_tx_info_priv *)
-		tx_info->driver_data[0];
+		tx_info->control.vif; /* XXX: HACK! */
 	memcpy(bf->bf_rcs,
 		tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0]));
 
@@ -1927,7 +1936,8 @@
 
 	bf->bf_flags = txctl->flags;
 	bf->bf_keytype = txctl->keytype;
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 	rcs = tx_info_priv->rcs;
 	bf->bf_rcs[0] = rcs[0];
 	bf->bf_rcs[1] = rcs[1];