iwlwifi: rate scale module cleanups
This patch does following changes 1. rs_get_expected_tpt_table: changed get to set 2. changed IWL_DEBUG_HT to IWL_DEBUG_RATE as appropriate 3. changed rs_get_supported_rates to be returning value function Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Guy Cohen
John W. Linville
parent
39e885049d
commit
eecd6e5705
1 changed files with 51 additions and 54 deletions
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@ -604,25 +604,23 @@ static inline u8 rs_use_green(struct iwl_priv *priv,
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* basic available rates.
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*
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*/
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static void rs_get_supported_rates(struct iwl4965_lq_sta *lq_sta,
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static u16 rs_get_supported_rates(struct iwl4965_lq_sta *lq_sta,
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struct ieee80211_hdr *hdr,
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enum iwl_table_type rate_type,
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u16 *data_rate)
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enum iwl_table_type rate_type)
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{
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if (is_legacy(rate_type))
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*data_rate = lq_sta->active_legacy_rate;
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else {
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if (is_siso(rate_type))
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*data_rate = lq_sta->active_siso_rate;
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else if (is_mimo2(rate_type))
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*data_rate = lq_sta->active_mimo2_rate;
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else
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*data_rate = lq_sta->active_mimo3_rate;
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}
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if (hdr && is_multicast_ether_addr(hdr->addr1) &&
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lq_sta->active_rate_basic) {
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*data_rate = lq_sta->active_rate_basic;
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lq_sta->active_rate_basic)
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return lq_sta->active_rate_basic;
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if (is_legacy(rate_type)) {
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return lq_sta->active_legacy_rate;
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} else {
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if (is_siso(rate_type))
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return lq_sta->active_siso_rate;
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else if (is_mimo2(rate_type))
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return lq_sta->active_mimo2_rate;
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else
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return lq_sta->active_mimo3_rate;
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}
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}
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@ -709,7 +707,7 @@ static u32 rs_get_lower_rate(struct iwl4965_lq_sta *lq_sta,
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tbl->is_SGI = 0;
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}
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rs_get_supported_rates(lq_sta, NULL, tbl->lq_type, &rate_mask);
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rate_mask = rs_get_supported_rates(lq_sta, NULL, tbl->lq_type);
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/* Mask with station rate restriction */
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if (is_legacy(tbl->lq_type)) {
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@ -975,7 +973,7 @@ static u8 rs_is_other_ant_connected(u8 valid_antenna, u8 ant_type)
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static void rs_set_stay_in_table(u8 is_legacy,
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struct iwl4965_lq_sta *lq_sta)
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{
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IWL_DEBUG_HT("we are staying in the same table\n");
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IWL_DEBUG_RATE("we are staying in the same table\n");
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lq_sta->stay_in_tbl = 1; /* only place this gets set */
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if (is_legacy) {
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lq_sta->table_count_limit = IWL_LEGACY_TABLE_COUNT;
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@ -994,7 +992,7 @@ static void rs_set_stay_in_table(u8 is_legacy,
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/*
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* Find correct throughput table for given mode of modulation
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*/
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static void rs_get_expected_tpt_table(struct iwl4965_lq_sta *lq_sta,
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static void rs_set_expected_tpt_table(struct iwl4965_lq_sta *lq_sta,
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struct iwl4965_scale_tbl_info *tbl)
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{
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if (is_legacy(tbl->lq_type)) {
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@ -1161,7 +1159,7 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
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if (!rs_is_both_ant_supp(priv->hw_params.valid_tx_ant))
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return -1;
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IWL_DEBUG_HT("LQ: try to switch to MIMO2\n");
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IWL_DEBUG_RATE("LQ: try to switch to MIMO2\n");
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tbl->lq_type = LQ_MIMO2;
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tbl->is_dup = lq_sta->is_dup;
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@ -1186,20 +1184,20 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
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tbl->is_SGI = 0;
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*/
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rs_get_expected_tpt_table(lq_sta, tbl);
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rs_set_expected_tpt_table(lq_sta, tbl);
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rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index, index);
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IWL_DEBUG_HT("LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
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IWL_DEBUG_RATE("LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
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if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
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IWL_DEBUG_HT("Can't switch with index %d rate mask %x\n",
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IWL_DEBUG_RATE("Can't switch with index %d rate mask %x\n",
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rate, rate_mask);
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return -1;
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}
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tbl->current_rate = rate_n_flags_from_tbl(tbl, rate, is_green);
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IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
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IWL_DEBUG_RATE("LQ: Switch to new mcs %X index is green %X\n",
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tbl->current_rate, is_green);
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return 0;
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}
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@ -1232,7 +1230,7 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
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!sta->ht_info.ht_supported)
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return -1;
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IWL_DEBUG_HT("LQ: try to switch to SISO\n");
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IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
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tbl->is_dup = lq_sta->is_dup;
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tbl->lq_type = LQ_SISO;
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@ -1260,17 +1258,17 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
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if (is_green)
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tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/
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rs_get_expected_tpt_table(lq_sta, tbl);
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rs_set_expected_tpt_table(lq_sta, tbl);
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rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index, index);
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IWL_DEBUG_HT("LQ: get best rate %d mask %X\n", rate, rate_mask);
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IWL_DEBUG_RATE("LQ: get best rate %d mask %X\n", rate, rate_mask);
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if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
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IWL_DEBUG_HT("can not switch with index %d rate mask %x\n",
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IWL_DEBUG_RATE("can not switch with index %d rate mask %x\n",
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rate, rate_mask);
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return -1;
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}
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tbl->current_rate = rate_n_flags_from_tbl(tbl, rate, is_green);
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IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
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IWL_DEBUG_RATE("LQ: Switch to new mcs %X index is green %X\n",
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tbl->current_rate, is_green);
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return 0;
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#else
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@ -1302,7 +1300,7 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
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for (; ;) {
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switch (tbl->action) {
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case IWL_LEGACY_SWITCH_ANTENNA:
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IWL_DEBUG_HT("LQ Legacy toggle Antenna\n");
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IWL_DEBUG_RATE("LQ Legacy toggle Antenna\n");
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search_tbl->lq_type = LQ_NONE;
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lq_sta->action_counter++;
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@ -1322,12 +1320,12 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
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rs_toggle_antenna(&search_tbl->current_rate,
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search_tbl);
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rs_get_expected_tpt_table(lq_sta, search_tbl);
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rs_set_expected_tpt_table(lq_sta, search_tbl);
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lq_sta->search_better_tbl = 1;
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goto out;
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case IWL_LEGACY_SWITCH_SISO:
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IWL_DEBUG_HT("LQ: Legacy switch to SISO\n");
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IWL_DEBUG_RATE("LQ: Legacy switch to SISO\n");
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/* Set up search table to try SISO */
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memcpy(search_tbl, tbl, sz);
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@ -1342,7 +1340,7 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
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break;
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case IWL_LEGACY_SWITCH_MIMO2:
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IWL_DEBUG_HT("LQ: Legacy switch to MIMO2\n");
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IWL_DEBUG_RATE("LQ: Legacy switch to MIMO2\n");
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/* Set up search table to try MIMO */
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memcpy(search_tbl, tbl, sz);
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@ -1401,7 +1399,7 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
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lq_sta->action_counter++;
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switch (tbl->action) {
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case IWL_SISO_SWITCH_ANTENNA:
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IWL_DEBUG_HT("LQ: SISO toggle Antenna\n");
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IWL_DEBUG_RATE("LQ: SISO toggle Antenna\n");
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/*FIXME:RS: is this really needed for SISO?*/
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if (window->success_ratio >= IWL_RS_GOOD_RATIO)
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break;
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@ -1417,7 +1415,7 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
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goto out;
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case IWL_SISO_SWITCH_MIMO2:
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IWL_DEBUG_HT("LQ: SISO switch to MIMO\n");
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IWL_DEBUG_RATE("LQ: SISO switch to MIMO\n");
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memcpy(search_tbl, tbl, sz);
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search_tbl->is_SGI = 0;
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search_tbl->ant_type = ANT_AB; /*FIXME:RS*/
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@ -1429,7 +1427,7 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
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}
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break;
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case IWL_SISO_SWITCH_GI:
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IWL_DEBUG_HT("LQ: SISO toggle SGI/NGI\n");
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IWL_DEBUG_RATE("LQ: SISO toggle SGI/NGI\n");
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memcpy(search_tbl, tbl, sz);
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if (is_green) {
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@ -1439,7 +1437,7 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
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IWL_ERROR("SGI was set in GF+SISO\n");
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}
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search_tbl->is_SGI = !tbl->is_SGI;
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rs_get_expected_tpt_table(lq_sta, search_tbl);
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rs_set_expected_tpt_table(lq_sta, search_tbl);
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if (tbl->is_SGI) {
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s32 tpt = lq_sta->last_tpt / 100;
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if (tpt >= search_tbl->expected_tpt[index])
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@ -1490,7 +1488,7 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
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switch (tbl->action) {
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case IWL_MIMO_SWITCH_ANTENNA_A:
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case IWL_MIMO_SWITCH_ANTENNA_B:
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IWL_DEBUG_HT("LQ: MIMO2 switch to SISO\n");
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IWL_DEBUG_RATE("LQ: MIMO2 switch to SISO\n");
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/* Set up new search table for SISO */
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memcpy(search_tbl, tbl, sz);
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@ -1510,12 +1508,12 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
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break;
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case IWL_MIMO_SWITCH_GI:
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IWL_DEBUG_HT("LQ: MIMO toggle SGI/NGI\n");
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IWL_DEBUG_RATE("LQ: MIMO toggle SGI/NGI\n");
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/* Set up new search table for MIMO */
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memcpy(search_tbl, tbl, sz);
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search_tbl->is_SGI = !tbl->is_SGI;
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rs_get_expected_tpt_table(lq_sta, search_tbl);
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rs_set_expected_tpt_table(lq_sta, search_tbl);
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/*
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* If active table already uses the fastest possible
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* modulation (dual stream with short guard interval),
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@ -1593,7 +1591,7 @@ static void rs_stay_in_table(struct iwl4965_lq_sta *lq_sta)
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(lq_sta->total_success > lq_sta->max_success_limit) ||
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((!lq_sta->search_better_tbl) && (lq_sta->flush_timer)
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&& (flush_interval_passed))) {
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IWL_DEBUG_HT("LQ: stay is expired %d %d %d\n:",
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IWL_DEBUG_RATE("LQ: stay is expired %d %d %d\n:",
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lq_sta->total_failed,
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lq_sta->total_success,
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flush_interval_passed);
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@ -1616,7 +1614,7 @@ static void rs_stay_in_table(struct iwl4965_lq_sta *lq_sta)
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lq_sta->table_count_limit) {
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lq_sta->table_count = 0;
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IWL_DEBUG_HT("LQ: stay in table clear win\n");
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IWL_DEBUG_RATE("LQ: stay in table clear win\n");
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for (i = 0; i < IWL_RATE_COUNT; i++)
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rs_rate_scale_clear_window(
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&(tbl->win[i]));
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@ -1715,8 +1713,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
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tbl->lq_type);
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/* rates available for this association, and for modulation mode */
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rs_get_supported_rates(lq_sta, hdr, tbl->lq_type,
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&rate_mask);
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rate_mask = rs_get_supported_rates(lq_sta, hdr, tbl->lq_type);
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IWL_DEBUG_RATE("mask 0x%04X \n", rate_mask);
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@ -1756,7 +1753,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
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/* Get expected throughput table and history window for current rate */
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if (!tbl->expected_tpt)
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rs_get_expected_tpt_table(lq_sta, tbl);
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rs_set_expected_tpt_table(lq_sta, tbl);
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window = &(tbl->win[index]);
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@ -1806,7 +1803,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
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if ((window->success_ratio > success_limit) ||
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(window->average_tpt > lq_sta->last_tpt)) {
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if (!is_legacy(tbl->lq_type)) {
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IWL_DEBUG_HT("LQ: we are switching to HT"
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IWL_DEBUG_RATE("LQ: we are switching to HT"
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" rate suc %d current tpt %d"
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" old tpt %d\n",
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window->success_ratio,
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@ -1834,7 +1831,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
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/* Need to set up a new rate table in uCode */
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update_lq = 1;
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IWL_DEBUG_HT("XXY GO BACK TO OLD TABLE\n");
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IWL_DEBUG_RATE("XXY GO BACK TO OLD TABLE\n");
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}
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/* Either way, we've made a decision; modulation mode
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@ -1942,7 +1939,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
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break;
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}
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IWL_DEBUG_HT("choose rate scale index %d action %d low %d "
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IWL_DEBUG_RATE("choose rate scale index %d action %d low %d "
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"high %d type %d\n",
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index, scale_action, low, high, tbl->lq_type);
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@ -1987,7 +1984,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
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index = iwl4965_hwrate_to_plcp_idx(
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tbl->current_rate);
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IWL_DEBUG_HT("Switch current mcs: %X index: %d\n",
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IWL_DEBUG_RATE("Switch current mcs: %X index: %d\n",
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tbl->current_rate, index);
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rs_fill_link_cmd(priv, lq_sta, tbl->current_rate,
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&lq_sta->lq);
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@ -2006,7 +2003,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
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#endif
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(lq_sta->action_counter >= 1)) {
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lq_sta->action_counter = 0;
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IWL_DEBUG_HT("LQ: STAY in legacy table\n");
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IWL_DEBUG_RATE("LQ: STAY in legacy table\n");
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rs_set_stay_in_table(1, lq_sta);
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}
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@ -2019,7 +2016,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
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if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
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(lq_sta->tx_agg_tid_en & (1 << tid)) &&
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(tid != MAX_TID_COUNT)) {
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IWL_DEBUG_HT("try to aggregate tid %d\n", tid);
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IWL_DEBUG_RATE("try to aggregate tid %d\n", tid);
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rs_tl_turn_on_agg(priv, tid, lq_sta, sta);
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}
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#endif /*CONFIG_IWL4965_HT */
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@ -2103,7 +2100,7 @@ static void rs_initialize_lq(struct iwl_priv *priv,
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rate = rate_n_flags_from_tbl(tbl, rate_idx, use_green);
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tbl->current_rate = rate;
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rs_get_expected_tpt_table(lq_sta, tbl);
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rs_set_expected_tpt_table(lq_sta, tbl);
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rs_fill_link_cmd(NULL, lq_sta, rate, &lq_sta->lq);
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iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
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out:
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@ -2227,7 +2224,7 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
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DECLARE_MAC_BUF(mac);
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/* for IBSS the call are from tasklet */
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IWL_DEBUG_HT("LQ: ADD station %s\n",
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IWL_DEBUG_RATE("LQ: ADD station %s\n",
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print_mac(mac, sta->addr));
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if (sta_id == IWL_INVALID_STATION) {
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@ -2287,7 +2284,7 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
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lq_sta->active_mimo3_rate &= ~((u16)0x2);
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lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
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IWL_DEBUG_HT("SISO RATE %X MIMO2 RATE %X MIMO3 RATE %X\n",
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IWL_DEBUG_RATE("SISO RATE %X MIMO2 RATE %X MIMO3 RATE %X\n",
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lq_sta->active_siso_rate,
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lq_sta->active_mimo2_rate,
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lq_sta->active_mimo3_rate);
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