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Commit b7e35008 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

mac80211: move last_txrate_idx into RC algorithms 



This variable in sta_info is only used in a meaningful way
by the Intel RC algorithms, so move it into those.

Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 95dac040

drivers/net/wireless/iwlwifi/iwl-3945-rs.c

+12 −8
Original line number Diff line number Diff line
@@ -65,6 +65,9 @@ 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] = {
@@ -319,6 +322,7 @@ 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)

{

	struct iwl3945_rs_sta *rs_sta = (void *)sta->rate_ctrl_priv;

	int i;



	IWL_DEBUG_RATE("enter\n");
@@ -335,11 +339,11 @@ static void rs_rate_init(void *priv_rate, void *priv_sta, 
		}

	}



	sta->last_txrate_idx = sta->txrate_idx;

	rs_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;

		rs_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;



	IWL_DEBUG_RATE("leave\n");

}
@@ -674,14 +678,14 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev, 
		return;

	}



	rs_sta = (void *)sta->rate_ctrl_priv;



	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 == NL80211_IFTYPE_ADHOC) &&

	    !rs_sta->ibss_sta_added) {

		u8 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
@@ -803,11 +807,11 @@ 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;

		sta->txrate_idx = rs_sta->last_txrate_idx - IWL_FIRST_OFDM_RATE;

	else

		sta->txrate_idx = sta->last_txrate_idx;

		sta->txrate_idx = rs_sta->last_txrate_idx;



	rcu_read_unlock();

drivers/net/wireless/iwlwifi/iwl-agn-rs.c

+9 −6
Original line number Diff line number Diff line
@@ -163,6 +163,9 @@ struct iwl_lq_sta { 
	u32 dbg_fixed_rate;

#endif

	struct iwl_priv *drv;



	/* used to be in sta_info */

	int last_txrate_idx;

};



static void rs_rate_scale_perform(struct iwl_priv *priv,
@@ -1746,7 +1749,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv, 
	is_green = lq_sta->is_green;



	/* current tx rate */

	index = sta->last_txrate_idx;

	index = lq_sta->last_txrate_idx;



	IWL_DEBUG_RATE("Rate scale index %d for type %d\n", index,

		       tbl->lq_type);
@@ -2059,7 +2062,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv, 
out:

	tbl->current_rate = rate_n_flags_from_tbl(tbl, index, is_green);

	i = index;

	sta->last_txrate_idx = i;

	lq_sta->last_txrate_idx = i;



	/* sta->txrate_idx is an index to A mode rates which start

	 * at IWL_FIRST_OFDM_RATE
@@ -2090,7 +2093,7 @@ static void rs_initialize_lq(struct iwl_priv *priv, 
		goto out;



	lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;

	i = sta->last_txrate_idx;

	i = lq_sta->last_txrate_idx;



	if ((lq_sta->lq.sta_id == 0xff) &&

	    (priv->iw_mode == NL80211_IFTYPE_ADHOC))
@@ -2161,7 +2164,7 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev, 
	}



	lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;

	i = sta->last_txrate_idx;

	i = lq_sta->last_txrate_idx;



	if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&

	    !lq_sta->ibss_sta_added) {
@@ -2270,10 +2273,10 @@ static void rs_rate_init(void *priv_rate, void *priv_sta, 
		if (sta->supp_rates[sband->band] & BIT(i))

			sta->txrate_idx = i;



	sta->last_txrate_idx = sta->txrate_idx;

	lq_sta->last_txrate_idx = sta->txrate_idx;

	/* For MODE_IEEE80211A, skip over cck rates in global rate table */

	if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)

		sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;

		lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;



	lq_sta->is_dup = 0;

	lq_sta->is_green = rs_use_green(priv, conf);

net/mac80211/rc80211_pid_algo.c

+0 −2
Original line number Diff line number Diff line
@@ -329,8 +329,6 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev, 
	if (rateidx >= sband->n_bitrates)

		rateidx = sband->n_bitrates - 1;



	sta->last_txrate_idx = rateidx;



	rcu_read_unlock();



	sel->rate_idx = rateidx;

net/mac80211/sta_info.h

+0 −2
Original line number Diff line number Diff line
@@ -200,7 +200,6 @@ struct sta_ampdu_mlme { 
 * @tx_bytes: TBD

 * @tx_fragments: number of transmitted MPDUs

 * @txrate_idx: TBD

 * @last_txrate_idx: TBD

 * @tid_seq: TBD

 * @wme_tx_queue: TBD

 * @ampdu_mlme: TBD
@@ -278,7 +277,6 @@ struct sta_info { 
	unsigned long tx_bytes;

	unsigned long tx_fragments;

	int txrate_idx;

	int last_txrate_idx;

	u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];

#ifdef CONFIG_MAC80211_DEBUG_COUNTERS

	unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];