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mac80211: move last_txrate_idx into RC algorithms

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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: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2008-09-11 02:22:58 +02:00
committed by John W. Linville
parent 95dac04004
commit b7e3500881
4 changed files with 21 additions and 18 deletions
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20
drivers/net/wireless/iwlwifi/iwl-3945-rs.c
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@@ -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();