iwlwifi: move HT configuration data into context

A lot of HT configuration semantically belongs into
the context, even if right now it will never be
different between contexts. Move it so we're better
prepared for future changes in mac80211.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

1 files changed, 43 insertions, 23 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index e78f3f0592d6..57629fba3a7d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -602,11 +602,13 @@ static int rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags,
  * Green-field mode is valid if the station supports it and
  * there are no non-GF stations present in the BSS.
  */
-static inline u8 rs_use_green(struct ieee80211_sta *sta,
-			      struct iwl_ht_config *ht_conf)
+static bool rs_use_green(struct ieee80211_sta *sta)
 {
+	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+	struct iwl_rxon_context *ctx = sta_priv->common.ctx;
+
 	return (sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
-		!(ht_conf->non_GF_STA_present);
+		!(ctx->ht.non_gf_sta_present);
 }
 
 /**
@@ -758,8 +760,8 @@ static bool table_type_matches(struct iwl_scale_tbl_info *a,
 		(a->is_SGI == b->is_SGI);
 }
 
-static void rs_bt_update_lq(struct iwl_priv *priv,
-			       struct iwl_lq_sta *lq_sta)
+static void rs_bt_update_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
+			    struct iwl_lq_sta *lq_sta)
 {
 	struct iwl_scale_tbl_info *tbl;
 	bool full_concurrent;
@@ -778,7 +780,7 @@ static void rs_bt_update_lq(struct iwl_priv *priv,
 		/* Update uCode's rate table. */
 		tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 		rs_fill_link_cmd(priv, lq_sta, tbl->current_rate);
-		iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC, false);
+		iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false);
 
 		queue_work(priv->workqueue, &priv->bt_full_concurrency);
 	}
@@ -803,6 +805,8 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 	u32 tx_rate;
 	struct iwl_scale_tbl_info tbl_type;
 	struct iwl_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl;
+	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+	struct iwl_rxon_context *ctx = sta_priv->common.ctx;
 
 	IWL_DEBUG_RATE_LIMIT(priv, "get frame ack response, update rate scale window\n");
 
@@ -869,7 +873,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 		lq_sta->missed_rate_counter++;
 		if (lq_sta->missed_rate_counter > IWL_MISSED_RATE_MAX) {
 			lq_sta->missed_rate_counter = 0;
-			iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC, false);
+			iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false);
 		}
 		/* Regardless, ignore this status info for outdated rate */
 		return;
@@ -969,7 +973,7 @@ done:
 
 	/* Is there a need to switch between full concurrency and 3-wire? */
 	if (priv->bt_ant_couple_ok)
-		rs_bt_update_lq(priv, lq_sta);
+		rs_bt_update_lq(priv, ctx, lq_sta);
 }
 
 /*
@@ -1163,6 +1167,8 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
 	u16 rate_mask;
 	s32 rate;
 	s8 is_green = lq_sta->is_green;
+	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+	struct iwl_rxon_context *ctx = sta_priv->common.ctx;
 
 	if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
 		return -1;
@@ -1183,7 +1189,7 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
 	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_mimo2_rate;
 
-	if (iwl_is_ht40_tx_allowed(priv, &sta->ht_cap))
+	if (iwl_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap))
 		tbl->is_ht40 = 1;
 	else
 		tbl->is_ht40 = 0;
@@ -1217,6 +1223,8 @@ static int rs_switch_to_mimo3(struct iwl_priv *priv,
 	u16 rate_mask;
 	s32 rate;
 	s8 is_green = lq_sta->is_green;
+	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+	struct iwl_rxon_context *ctx = sta_priv->common.ctx;
 
 	if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
 		return -1;
@@ -1237,7 +1245,7 @@ static int rs_switch_to_mimo3(struct iwl_priv *priv,
 	tbl->max_search = IWL_MAX_11N_MIMO3_SEARCH;
 	rate_mask = lq_sta->active_mimo3_rate;
 
-	if (iwl_is_ht40_tx_allowed(priv, &sta->ht_cap))
+	if (iwl_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap))
 		tbl->is_ht40 = 1;
 	else
 		tbl->is_ht40 = 0;
@@ -1272,6 +1280,8 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
 	u16 rate_mask;
 	u8 is_green = lq_sta->is_green;
 	s32 rate;
+	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+	struct iwl_rxon_context *ctx = sta_priv->common.ctx;
 
 	if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
 		return -1;
@@ -1284,7 +1294,7 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
 	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_siso_rate;
 
-	if (iwl_is_ht40_tx_allowed(priv, &sta->ht_cap))
+	if (iwl_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap))
 		tbl->is_ht40 = 1;
 	else
 		tbl->is_ht40 = 0;
@@ -2086,6 +2096,7 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search)
  * return rate_n_flags as used in the table
  */
 static u32 rs_update_rate_tbl(struct iwl_priv *priv,
+			      struct iwl_rxon_context *ctx,
 				struct iwl_lq_sta *lq_sta,
 				struct iwl_scale_tbl_info *tbl,
 				int index, u8 is_green)
@@ -2095,7 +2106,7 @@ static u32 rs_update_rate_tbl(struct iwl_priv *priv,
 	/* Update uCode's rate table. */
 	rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
 	rs_fill_link_cmd(priv, lq_sta, rate);
-	iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC, false);
+	iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false);
 
 	return rate;
 }
@@ -2134,6 +2145,8 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 	s32 sr;
 	u8 tid = MAX_TID_COUNT;
 	struct iwl_tid_data *tid_data;
+	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+	struct iwl_rxon_context *ctx = sta_priv->common.ctx;
 
 	IWL_DEBUG_RATE(priv, "rate scale calculate new rate for skb\n");
 
@@ -2172,7 +2185,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 	if (is_legacy(tbl->lq_type))
 		lq_sta->is_green = 0;
 	else
-		lq_sta->is_green = rs_use_green(sta, &priv->current_ht_config);
+		lq_sta->is_green = rs_use_green(sta);
 	is_green = lq_sta->is_green;
 
 	/* current tx rate */
@@ -2211,7 +2224,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 			tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 			/* get "active" rate info */
 			index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
-			rate = rs_update_rate_tbl(priv, lq_sta,
+			rate = rs_update_rate_tbl(priv, ctx, lq_sta,
 						  tbl, index, is_green);
 		}
 		return;
@@ -2453,7 +2466,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 lq_update:
 	/* Replace uCode's rate table for the destination station. */
 	if (update_lq)
-		rate = rs_update_rate_tbl(priv, lq_sta,
+		rate = rs_update_rate_tbl(priv, ctx, lq_sta,
 					  tbl, index, is_green);
 
 	if (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_MULTI) {
@@ -2495,7 +2508,7 @@ lq_update:
 			IWL_DEBUG_RATE(priv, "Switch current  mcs: %X index: %d\n",
 				     tbl->current_rate, index);
 			rs_fill_link_cmd(priv, lq_sta, tbl->current_rate);
-			iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC, false);
+			iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false);
 		} else
 			done_search = 1;
 	}
@@ -2565,12 +2578,17 @@ static void rs_initialize_lq(struct iwl_priv *priv,
 	int rate_idx;
 	int i;
 	u32 rate;
-	u8 use_green = rs_use_green(sta, &priv->current_ht_config);
+	u8 use_green = rs_use_green(sta);
 	u8 active_tbl = 0;
 	u8 valid_tx_ant;
+	struct iwl_station_priv *sta_priv;
+	struct iwl_rxon_context *ctx;
 
 	if (!sta || !lq_sta)
-		goto out;
+		return;
+
+	sta_priv = (void *)sta->drv_priv;
+	ctx = sta_priv->common.ctx;
 
 	i = lq_sta->last_txrate_idx;
 
@@ -2602,9 +2620,7 @@ static void rs_initialize_lq(struct iwl_priv *priv,
 	rs_set_expected_tpt_table(lq_sta, tbl);
 	rs_fill_link_cmd(NULL, lq_sta, rate);
 	priv->stations[lq_sta->lq.sta_id].lq = &lq_sta->lq;
-	iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_SYNC, true);
- out:
-	return;
+	iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_SYNC, true);
 }
 
 static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
@@ -2732,7 +2748,7 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i
 	lq_sta->is_dup = 0;
 	lq_sta->max_rate_idx = -1;
 	lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX;
-	lq_sta->is_green = rs_use_green(sta, &priv->current_ht_config);
+	lq_sta->is_green = rs_use_green(sta);
 	lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000);
 	lq_sta->band = priv->band;
 	/*
@@ -2992,6 +3008,9 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
 	char buf[64];
 	int buf_size;
 	u32 parsed_rate;
+	struct iwl_station_priv *sta_priv =
+		container_of(lq_sta, struct iwl_station_priv, lq_sta);
+	struct iwl_rxon_context *ctx = sta_priv->common.ctx;
 
 	priv = lq_sta->drv;
 	memset(buf, 0, sizeof(buf));
@@ -3014,7 +3033,8 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
 
 	if (lq_sta->dbg_fixed_rate) {
 		rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
-		iwl_send_lq_cmd(lq_sta->drv, &lq_sta->lq, CMD_ASYNC, false);
+		iwl_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC,
+				false);
 	}
 
 	return count;