diff options
Diffstat (limited to 'drivers/net/wireless/iwlegacy/iwl-3945-rs.c')
-rw-r--r-- | drivers/net/wireless/iwlegacy/iwl-3945-rs.c | 468 |
1 files changed, 234 insertions, 234 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-rs.c b/drivers/net/wireless/iwlegacy/iwl-3945-rs.c index 8faeaf2ddde..d97f24bfc45 100644 --- a/drivers/net/wireless/iwlegacy/iwl-3945-rs.c +++ b/drivers/net/wireless/iwlegacy/iwl-3945-rs.c @@ -42,80 +42,80 @@ #define RS_NAME "iwl-3945-rs" -static s32 iwl3945_expected_tpt_g[IWL_RATE_COUNT_3945] = { +static s32 il3945_expected_tpt_g[IL_RATE_COUNT_3945] = { 7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202 }; -static s32 iwl3945_expected_tpt_g_prot[IWL_RATE_COUNT_3945] = { +static s32 il3945_expected_tpt_g_prot[IL_RATE_COUNT_3945] = { 7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125 }; -static s32 iwl3945_expected_tpt_a[IWL_RATE_COUNT_3945] = { +static s32 il3945_expected_tpt_a[IL_RATE_COUNT_3945] = { 0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186 }; -static s32 iwl3945_expected_tpt_b[IWL_RATE_COUNT_3945] = { +static s32 il3945_expected_tpt_b[IL_RATE_COUNT_3945] = { 7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0 }; -struct iwl3945_tpt_entry { +struct il3945_tpt_entry { s8 min_rssi; u8 index; }; -static struct iwl3945_tpt_entry iwl3945_tpt_table_a[] = { - {-60, IWL_RATE_54M_INDEX}, - {-64, IWL_RATE_48M_INDEX}, - {-72, IWL_RATE_36M_INDEX}, - {-80, IWL_RATE_24M_INDEX}, - {-84, IWL_RATE_18M_INDEX}, - {-85, IWL_RATE_12M_INDEX}, - {-87, IWL_RATE_9M_INDEX}, - {-89, IWL_RATE_6M_INDEX} +static struct il3945_tpt_entry il3945_tpt_table_a[] = { + {-60, IL_RATE_54M_INDEX}, + {-64, IL_RATE_48M_INDEX}, + {-72, IL_RATE_36M_INDEX}, + {-80, IL_RATE_24M_INDEX}, + {-84, IL_RATE_18M_INDEX}, + {-85, IL_RATE_12M_INDEX}, + {-87, IL_RATE_9M_INDEX}, + {-89, IL_RATE_6M_INDEX} }; -static struct iwl3945_tpt_entry iwl3945_tpt_table_g[] = { - {-60, IWL_RATE_54M_INDEX}, - {-64, IWL_RATE_48M_INDEX}, - {-68, IWL_RATE_36M_INDEX}, - {-80, IWL_RATE_24M_INDEX}, - {-84, IWL_RATE_18M_INDEX}, - {-85, IWL_RATE_12M_INDEX}, - {-86, IWL_RATE_11M_INDEX}, - {-88, IWL_RATE_5M_INDEX}, - {-90, IWL_RATE_2M_INDEX}, - {-92, IWL_RATE_1M_INDEX} +static struct il3945_tpt_entry il3945_tpt_table_g[] = { + {-60, IL_RATE_54M_INDEX}, + {-64, IL_RATE_48M_INDEX}, + {-68, IL_RATE_36M_INDEX}, + {-80, IL_RATE_24M_INDEX}, + {-84, IL_RATE_18M_INDEX}, + {-85, IL_RATE_12M_INDEX}, + {-86, IL_RATE_11M_INDEX}, + {-88, IL_RATE_5M_INDEX}, + {-90, IL_RATE_2M_INDEX}, + {-92, IL_RATE_1M_INDEX} }; -#define IWL_RATE_MAX_WINDOW 62 -#define IWL_RATE_FLUSH (3*HZ) -#define IWL_RATE_WIN_FLUSH (HZ/2) +#define IL_RATE_MAX_WINDOW 62 +#define IL_RATE_FLUSH (3*HZ) +#define IL_RATE_WIN_FLUSH (HZ/2) #define IWL39_RATE_HIGH_TH 11520 -#define IWL_SUCCESS_UP_TH 8960 -#define IWL_SUCCESS_DOWN_TH 10880 -#define IWL_RATE_MIN_FAILURE_TH 6 -#define IWL_RATE_MIN_SUCCESS_TH 8 -#define IWL_RATE_DECREASE_TH 1920 -#define IWL_RATE_RETRY_TH 15 - -static u8 iwl3945_get_rate_index_by_rssi(s32 rssi, enum ieee80211_band band) +#define IL_SUCCESS_UP_TH 8960 +#define IL_SUCCESS_DOWN_TH 10880 +#define IL_RATE_MIN_FAILURE_TH 6 +#define IL_RATE_MIN_SUCCESS_TH 8 +#define IL_RATE_DECREASE_TH 1920 +#define IL_RATE_RETRY_TH 15 + +static u8 il3945_get_rate_index_by_rssi(s32 rssi, enum ieee80211_band band) { u32 index = 0; u32 table_size = 0; - struct iwl3945_tpt_entry *tpt_table = NULL; + struct il3945_tpt_entry *tpt_table = NULL; - if ((rssi < IWL_MIN_RSSI_VAL) || (rssi > IWL_MAX_RSSI_VAL)) - rssi = IWL_MIN_RSSI_VAL; + if ((rssi < IL_MIN_RSSI_VAL) || (rssi > IL_MAX_RSSI_VAL)) + rssi = IL_MIN_RSSI_VAL; switch (band) { case IEEE80211_BAND_2GHZ: - tpt_table = iwl3945_tpt_table_g; - table_size = ARRAY_SIZE(iwl3945_tpt_table_g); + tpt_table = il3945_tpt_table_g; + table_size = ARRAY_SIZE(il3945_tpt_table_g); break; case IEEE80211_BAND_5GHZ: - tpt_table = iwl3945_tpt_table_a; - table_size = ARRAY_SIZE(iwl3945_tpt_table_a); + tpt_table = il3945_tpt_table_a; + table_size = ARRAY_SIZE(il3945_tpt_table_a); break; default: @@ -131,46 +131,46 @@ static u8 iwl3945_get_rate_index_by_rssi(s32 rssi, enum ieee80211_band band) return tpt_table[index].index; } -static void iwl3945_clear_window(struct iwl3945_rate_scale_data *window) +static void il3945_clear_window(struct il3945_rate_scale_data *window) { window->data = 0; window->success_counter = 0; window->success_ratio = -1; window->counter = 0; - window->average_tpt = IWL_INVALID_VALUE; + window->average_tpt = IL_INVALID_VALUE; window->stamp = 0; } /** - * iwl3945_rate_scale_flush_windows - flush out the rate scale windows + * il3945_rate_scale_flush_windows - flush out the rate scale windows * * Returns the number of windows that have gathered data but were * not flushed. If there were any that were not flushed, then * reschedule the rate flushing routine. */ -static int iwl3945_rate_scale_flush_windows(struct iwl3945_rs_sta *rs_sta) +static int il3945_rate_scale_flush_windows(struct il3945_rs_sta *rs_sta) { int unflushed = 0; int i; unsigned long flags; - struct iwl_priv *priv __maybe_unused = rs_sta->priv; + struct il_priv *priv __maybe_unused = rs_sta->priv; /* * For each rate, if we have collected data on that rate - * and it has been more than IWL_RATE_WIN_FLUSH + * and it has been more than IL_RATE_WIN_FLUSH * since we flushed, clear out the gathered statistics */ - for (i = 0; i < IWL_RATE_COUNT_3945; i++) { + for (i = 0; i < IL_RATE_COUNT_3945; i++) { if (!rs_sta->win[i].counter) continue; spin_lock_irqsave(&rs_sta->lock, flags); if (time_after(jiffies, rs_sta->win[i].stamp + - IWL_RATE_WIN_FLUSH)) { - IWL_DEBUG_RATE(priv, "flushing %d samples of rate " + IL_RATE_WIN_FLUSH)) { + IL_DEBUG_RATE(priv, "flushing %d samples of rate " "index %d\n", rs_sta->win[i].counter, i); - iwl3945_clear_window(&rs_sta->win[i]); + il3945_clear_window(&rs_sta->win[i]); } else unflushed++; spin_unlock_irqrestore(&rs_sta->lock, flags); @@ -179,21 +179,21 @@ static int iwl3945_rate_scale_flush_windows(struct iwl3945_rs_sta *rs_sta) return unflushed; } -#define IWL_RATE_FLUSH_MAX 5000 /* msec */ -#define IWL_RATE_FLUSH_MIN 50 /* msec */ -#define IWL_AVERAGE_PACKETS 1500 +#define IL_RATE_FLUSH_MAX 5000 /* msec */ +#define IL_RATE_FLUSH_MIN 50 /* msec */ +#define IL_AVERAGE_PACKETS 1500 -static void iwl3945_bg_rate_scale_flush(unsigned long data) +static void il3945_bg_rate_scale_flush(unsigned long data) { - struct iwl3945_rs_sta *rs_sta = (void *)data; - struct iwl_priv *priv __maybe_unused = rs_sta->priv; + struct il3945_rs_sta *rs_sta = (void *)data; + struct il_priv *priv __maybe_unused = rs_sta->priv; int unflushed = 0; unsigned long flags; u32 packet_count, duration, pps; - IWL_DEBUG_RATE(priv, "enter\n"); + IL_DEBUG_RATE(priv, "enter\n"); - unflushed = iwl3945_rate_scale_flush_windows(rs_sta); + unflushed = il3945_rate_scale_flush_windows(rs_sta); spin_lock_irqsave(&rs_sta->lock, flags); @@ -206,7 +206,7 @@ static void iwl3945_bg_rate_scale_flush(unsigned long data) duration = jiffies_to_msecs(jiffies - rs_sta->last_partial_flush); - IWL_DEBUG_RATE(priv, "Tx'd %d packets in %dms\n", + IL_DEBUG_RATE(priv, "Tx'd %d packets in %dms\n", packet_count, duration); /* Determine packets per second */ @@ -216,17 +216,17 @@ static void iwl3945_bg_rate_scale_flush(unsigned long data) pps = 0; if (pps) { - duration = (IWL_AVERAGE_PACKETS * 1000) / pps; - if (duration < IWL_RATE_FLUSH_MIN) - duration = IWL_RATE_FLUSH_MIN; - else if (duration > IWL_RATE_FLUSH_MAX) - duration = IWL_RATE_FLUSH_MAX; + duration = (IL_AVERAGE_PACKETS * 1000) / pps; + if (duration < IL_RATE_FLUSH_MIN) + duration = IL_RATE_FLUSH_MIN; + else if (duration > IL_RATE_FLUSH_MAX) + duration = IL_RATE_FLUSH_MAX; } else - duration = IWL_RATE_FLUSH_MAX; + duration = IL_RATE_FLUSH_MAX; rs_sta->flush_time = msecs_to_jiffies(duration); - IWL_DEBUG_RATE(priv, "new flush period: %d msec ave %d\n", + IL_DEBUG_RATE(priv, "new flush period: %d msec ave %d\n", duration, packet_count); mod_timer(&rs_sta->rate_scale_flush, jiffies + @@ -234,7 +234,7 @@ static void iwl3945_bg_rate_scale_flush(unsigned long data) rs_sta->last_partial_flush = jiffies; } else { - rs_sta->flush_time = IWL_RATE_FLUSH; + rs_sta->flush_time = IL_RATE_FLUSH; rs_sta->flush_pending = 0; } /* If there weren't any unflushed entries, we don't schedule the timer @@ -244,26 +244,26 @@ static void iwl3945_bg_rate_scale_flush(unsigned long data) spin_unlock_irqrestore(&rs_sta->lock, flags); - IWL_DEBUG_RATE(priv, "leave\n"); + IL_DEBUG_RATE(priv, "leave\n"); } /** - * iwl3945_collect_tx_data - Update the success/failure sliding window + * il3945_collect_tx_data - Update the success/failure sliding window * * We keep a sliding window of the last 64 packets transmitted * at this rate. window->data contains the bitmask of successful * packets. */ -static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta, - struct iwl3945_rate_scale_data *window, +static void il3945_collect_tx_data(struct il3945_rs_sta *rs_sta, + struct il3945_rate_scale_data *window, int success, int retries, int index) { unsigned long flags; s32 fail_count; - struct iwl_priv *priv __maybe_unused = rs_sta->priv; + struct il_priv *priv __maybe_unused = rs_sta->priv; if (!retries) { - IWL_DEBUG_RATE(priv, "leave: retries == 0 -- should be at least 1\n"); + IL_DEBUG_RATE(priv, "leave: retries == 0 -- should be at least 1\n"); return; } @@ -278,13 +278,13 @@ static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta, * we keep these bitmaps!). * */ while (retries > 0) { - if (window->counter >= IWL_RATE_MAX_WINDOW) { + if (window->counter >= IL_RATE_MAX_WINDOW) { /* remove earliest */ - window->counter = IWL_RATE_MAX_WINDOW - 1; + window->counter = IL_RATE_MAX_WINDOW - 1; - if (window->data & (1ULL << (IWL_RATE_MAX_WINDOW - 1))) { - window->data &= ~(1ULL << (IWL_RATE_MAX_WINDOW - 1)); + if (window->data & (1ULL << (IL_RATE_MAX_WINDOW - 1))) { + window->data &= ~(1ULL << (IL_RATE_MAX_WINDOW - 1)); window->success_counter--; } } @@ -310,17 +310,17 @@ static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta, window->success_ratio = 128 * (100 * window->success_counter) / window->counter; else - window->success_ratio = IWL_INVALID_VALUE; + window->success_ratio = IL_INVALID_VALUE; fail_count = window->counter - window->success_counter; /* Calculate average throughput, if we have enough history. */ - if ((fail_count >= IWL_RATE_MIN_FAILURE_TH) || - (window->success_counter >= IWL_RATE_MIN_SUCCESS_TH)) + if ((fail_count >= IL_RATE_MIN_FAILURE_TH) || + (window->success_counter >= IL_RATE_MIN_SUCCESS_TH)) window->average_tpt = ((window->success_ratio * rs_sta->expected_tpt[index] + 64) / 128); else - window->average_tpt = IWL_INVALID_VALUE; + window->average_tpt = IL_INVALID_VALUE; /* Tag this window as having been updated */ window->stamp = jiffies; @@ -332,40 +332,40 @@ static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta, /* * Called after adding a new station to initialize rate scaling */ -void iwl3945_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_id) +void il3945_rs_rate_init(struct il_priv *priv, struct ieee80211_sta *sta, u8 sta_id) { struct ieee80211_hw *hw = priv->hw; struct ieee80211_conf *conf = &priv->hw->conf; - struct iwl3945_sta_priv *psta; - struct iwl3945_rs_sta *rs_sta; + struct il3945_sta_priv *psta; + struct il3945_rs_sta *rs_sta; struct ieee80211_supported_band *sband; int i; - IWL_DEBUG_INFO(priv, "enter\n"); - if (sta_id == priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id) + IL_DEBUG_INFO(priv, "enter\n"); + if (sta_id == priv->contexts[IL_RXON_CTX_BSS].bcast_sta_id) goto out; - psta = (struct iwl3945_sta_priv *) sta->drv_priv; + psta = (struct il3945_sta_priv *) sta->drv_priv; rs_sta = &psta->rs_sta; sband = hw->wiphy->bands[conf->channel->band]; rs_sta->priv = priv; - rs_sta->start_rate = IWL_RATE_INVALID; + rs_sta->start_rate = IL_RATE_INVALID; /* default to just 802.11b */ - rs_sta->expected_tpt = iwl3945_expected_tpt_b; + rs_sta->expected_tpt = il3945_expected_tpt_b; rs_sta->last_partial_flush = jiffies; rs_sta->last_flush = jiffies; - rs_sta->flush_time = IWL_RATE_FLUSH; + rs_sta->flush_time = IL_RATE_FLUSH; rs_sta->last_tx_packets = 0; rs_sta->rate_scale_flush.data = (unsigned long)rs_sta; - rs_sta->rate_scale_flush.function = iwl3945_bg_rate_scale_flush; + rs_sta->rate_scale_flush.function = il3945_bg_rate_scale_flush; - for (i = 0; i < IWL_RATE_COUNT_3945; i++) - iwl3945_clear_window(&rs_sta->win[i]); + for (i = 0; i < IL_RATE_COUNT_3945; i++) + il3945_clear_window(&rs_sta->win[i]); /* TODO: what is a good starting rate for STA? About middle? Maybe not * the lowest or the highest rate.. Could consider using RSSI from @@ -380,56 +380,56 @@ void iwl3945_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 s } priv->_3945.sta_supp_rates = sta->supp_rates[sband->band]; - /* For 5 GHz band it start at IWL_FIRST_OFDM_RATE */ + /* For 5 GHz band it start at IL_FIRST_OFDM_RATE */ if (sband->band == IEEE80211_BAND_5GHZ) { - rs_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE; + rs_sta->last_txrate_idx += IL_FIRST_OFDM_RATE; priv->_3945.sta_supp_rates = priv->_3945.sta_supp_rates << - IWL_FIRST_OFDM_RATE; + IL_FIRST_OFDM_RATE; } out: - priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS; + priv->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS; - IWL_DEBUG_INFO(priv, "leave\n"); + IL_DEBUG_INFO(priv, "leave\n"); } -static void *iwl3945_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) +static void *il3945_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) { return hw->priv; } /* rate scale requires free function to be implemented */ -static void iwl3945_rs_free(void *priv) +static void il3945_rs_free(void *priv) { return; } -static void *iwl3945_rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp) +static void *il3945_rs_alloc_sta(void *il_priv, struct ieee80211_sta *sta, gfp_t gfp) { - struct iwl3945_rs_sta *rs_sta; - struct iwl3945_sta_priv *psta = (void *) sta->drv_priv; - struct iwl_priv *priv __maybe_unused = iwl_priv; + struct il3945_rs_sta *rs_sta; + struct il3945_sta_priv *psta = (void *) sta->drv_priv; + struct il_priv *priv __maybe_unused = il_priv; - IWL_DEBUG_RATE(priv, "enter\n"); + IL_DEBUG_RATE(priv, "enter\n"); rs_sta = &psta->rs_sta; spin_lock_init(&rs_sta->lock); init_timer(&rs_sta->rate_scale_flush); - IWL_DEBUG_RATE(priv, "leave\n"); + IL_DEBUG_RATE(priv, "leave\n"); return rs_sta; } -static void iwl3945_rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta, +static void il3945_rs_free_sta(void *il_priv, struct ieee80211_sta *sta, void *priv_sta) { - struct iwl3945_rs_sta *rs_sta = priv_sta; + struct il3945_rs_sta *rs_sta = priv_sta; /* - * Be careful not to use any members of iwl3945_rs_sta (like trying - * to use iwl_priv to print out debugging) since it may not be fully + * Be careful not to use any members of il3945_rs_sta (like trying + * to use il_priv to print out debugging) since it may not be fully * initialized at this point. */ del_timer_sync(&rs_sta->rate_scale_flush); @@ -437,43 +437,43 @@ static void iwl3945_rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta, /** - * iwl3945_rs_tx_status - Update rate control values based on Tx results + * il3945_rs_tx_status - Update rate control values based on Tx results * - * NOTE: Uses iwl_priv->retry_rate for the # of retries attempted by + * NOTE: Uses il_priv->retry_rate for the # of retries attempted by * the hardware for each rate. */ -static void iwl3945_rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband, +static void il3945_rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband, struct ieee80211_sta *sta, void *priv_sta, struct sk_buff *skb) { s8 retries = 0, current_count; int scale_rate_index, first_index, last_index; unsigned long flags; - struct iwl_priv *priv = (struct iwl_priv *)priv_rate; - struct iwl3945_rs_sta *rs_sta = priv_sta; + struct il_priv *priv = (struct il_priv *)priv_rate; + struct il3945_rs_sta *rs_sta = priv_sta; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - IWL_DEBUG_RATE(priv, "enter\n"); + IL_DEBUG_RATE(priv, "enter\n"); retries = info->status.rates[0].count; /* Sanity Check for retries */ - if (retries > IWL_RATE_RETRY_TH) - retries = IWL_RATE_RETRY_TH; + if (retries > IL_RATE_RETRY_TH) + retries = IL_RATE_RETRY_TH; first_index = sband->bitrates[info->status.rates[0].idx].hw_value; - if ((first_index < 0) || (first_index >= IWL_RATE_COUNT_3945)) { - IWL_DEBUG_RATE(priv, "leave: Rate out of bounds: %d\n", first_index); + if ((first_index < 0) || (first_index >= IL_RATE_COUNT_3945)) { + IL_DEBUG_RATE(priv, "leave: Rate out of bounds: %d\n", first_index); return; } if (!priv_sta) { - IWL_DEBUG_RATE(priv, "leave: No STA priv data to update!\n"); + IL_DEBUG_RATE(priv, "leave: No STA priv data to update!\n"); return; } /* Treat uninitialized rate scaling data same as non-existing. */ if (!rs_sta->priv) { - IWL_DEBUG_RATE(priv, "leave: STA priv data uninitialized!\n"); + IL_DEBUG_RATE(priv, "leave: STA priv data uninitialized!\n"); return; } @@ -499,16 +499,16 @@ static void iwl3945_rs_tx_status(void *priv_rate, struct ieee80211_supported_ban last_index = scale_rate_index; } else { current_count = priv->retry_rate; - last_index = iwl3945_rs_next_rate(priv, + last_index = il3945_rs_next_rate(priv, scale_rate_index); } /* Update this rate accounting for as many retries * as was used for it (per current_count) */ - iwl3945_collect_tx_data(rs_sta, + il3945_collect_tx_data(rs_sta, &rs_sta->win[scale_rate_index], 0, current_count, scale_rate_index); - IWL_DEBUG_RATE(priv, "Update rate %d for %d retries.\n", + IL_DEBUG_RATE(priv, "Update rate %d for %d retries.\n", scale_rate_index, current_count); retries -= current_count; @@ -518,11 +518,11 @@ static void iwl3945_rs_tx_status(void *priv_rate, struct ieee80211_supported_ban /* Update the last index window with success/failure based on ACK */ - IWL_DEBUG_RATE(priv, "Update rate %d with %s.\n", + IL_DEBUG_RATE(priv, "Update rate %d with %s.\n", last_index, (info->flags & IEEE80211_TX_STAT_ACK) ? "success" : "failure"); - iwl3945_collect_tx_data(rs_sta, + il3945_collect_tx_data(rs_sta, &rs_sta->win[last_index], info->flags & IEEE80211_TX_STAT_ACK, 1, last_index); @@ -543,15 +543,15 @@ static void iwl3945_rs_tx_status(void *priv_rate, struct ieee80211_supported_ban spin_unlock_irqrestore(&rs_sta->lock, flags); - IWL_DEBUG_RATE(priv, "leave\n"); + IL_DEBUG_RATE(priv, "leave\n"); } -static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta, +static u16 il3945_get_adjacent_rate(struct il3945_rs_sta *rs_sta, u8 index, u16 rate_mask, enum ieee80211_band band) { - u8 high = IWL_RATE_INVALID; - u8 low = IWL_RATE_INVALID; - struct iwl_priv *priv __maybe_unused = rs_sta->priv; + u8 high = IL_RATE_INVALID; + u8 low = IL_RATE_INVALID; + struct il_priv *priv __maybe_unused = rs_sta->priv; /* 802.11A walks to the next literal adjacent rate in * the rate table */ @@ -570,7 +570,7 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta, /* Find the next rate that is in the rate mask */ i = index + 1; - for (mask = (1 << i); i < IWL_RATE_COUNT_3945; + for (mask = (1 << i); i < IL_RATE_COUNT_3945; i++, mask <<= 1) { if (rate_mask & mask) { high = i; @@ -582,36 +582,36 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta, } low = index; - while (low != IWL_RATE_INVALID) { + while (low != IL_RATE_INVALID) { if (rs_sta->tgg) - low = iwl3945_rates[low].prev_rs_tgg; + low = il3945_rates[low].prev_rs_tgg; else - low = iwl3945_rates[low].prev_rs; - if (low == IWL_RATE_INVALID) + low = il3945_rates[low].prev_rs; + if (low == IL_RATE_INVALID) break; if (rate_mask & (1 << low)) break; - IWL_DEBUG_RATE(priv, "Skipping masked lower rate: %d\n", low); + IL_DEBUG_RATE(priv, "Skipping masked lower rate: %d\n", low); } high = index; - while (high != IWL_RATE_INVALID) { + while (high != IL_RATE_INVALID) { if (rs_sta->tgg) - high = iwl3945_rates[high].next_rs_tgg; + high = il3945_rates[high].next_rs_tgg; else - high = iwl3945_rates[high].next_rs; - if (high == IWL_RATE_INVALID) + high = il3945_rates[high].next_rs; + if (high == IL_RATE_INVALID) break; if (rate_mask & (1 << high)) break; - IWL_DEBUG_RATE(priv, "Skipping masked higher rate: %d\n", high); + IL_DEBUG_RATE(priv, "Skipping masked higher rate: %d\n", high); } return (high << 8) | low; } /** - * iwl3945_rs_get_rate - find the rate for the requested packet + * il3945_rs_get_rate - find the rate for the requested packet * * Returns the ieee80211_rate structure allocated by the driver. * @@ -626,33 +626,33 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta, * rate table and must reference the driver allocated rate table * */ -static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, +static void il3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta, struct ieee80211_tx_rate_control *txrc) { struct ieee80211_supported_band *sband = txrc->sband; struct sk_buff *skb = txrc->skb; - u8 low = IWL_RATE_INVALID; - u8 high = IWL_RATE_INVALID; + u8 low = IL_RATE_INVALID; + u8 high = IL_RATE_INVALID; u16 high_low; int index; - struct iwl3945_rs_sta *rs_sta = priv_sta; - struct iwl3945_rate_scale_data *window = NULL; - int current_tpt = IWL_INVALID_VALUE; - int low_tpt = IWL_INVALID_VALUE; - int high_tpt = IWL_INVALID_VALUE; + struct il3945_rs_sta *rs_sta = priv_sta; + struct il3945_rate_scale_data *window = NULL; + int current_tpt = IL_INVALID_VALUE; + int low_tpt = IL_INVALID_VALUE; + int high_tpt = IL_INVALID_VALUE; u32 fail_count; s8 scale_action = 0; unsigned long flags; u16 rate_mask; s8 max_rate_idx = -1; - struct iwl_priv *priv __maybe_unused = (struct iwl_priv *)priv_r; + struct il_priv *priv __maybe_unused = (struct il_priv *)priv_r; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - IWL_DEBUG_RATE(priv, "enter\n"); + IL_DEBUG_RATE(priv, "enter\n"); /* Treat uninitialized rate scaling data same as non-existing. */ if (rs_sta && !rs_sta->priv) { - IWL_DEBUG_RATE(priv, "Rate scaling information not initialized yet.\n"); + IL_DEBUG_RATE(priv, "Rate scaling information not initialized yet.\n"); priv_sta = NULL; } @@ -664,25 +664,25 @@ static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, /* get user max rate if set */ max_rate_idx = txrc->max_rate_idx; if ((sband->band == IEEE80211_BAND_5GHZ) && (max_rate_idx != -1)) - max_rate_idx += IWL_FIRST_OFDM_RATE; - if ((max_rate_idx < 0) || (max_rate_idx >= IWL_RATE_COUNT)) + max_rate_idx += IL_FIRST_OFDM_RATE; + if ((max_rate_idx < 0) || (max_rate_idx >= IL_RATE_COUNT)) max_rate_idx = -1; - index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT_3945 - 1); + index = min(rs_sta->last_txrate_idx & 0xffff, IL_RATE_COUNT_3945 - 1); if (sband->band == IEEE80211_BAND_5GHZ) - rate_mask = rate_mask << IWL_FIRST_OFDM_RATE; + rate_mask = rate_mask << IL_FIRST_OFDM_RATE; spin_lock_irqsave(&rs_sta->lock, flags); /* for recent assoc, choose best rate regarding * to rssi value */ - if (rs_sta->start_rate != IWL_RATE_INVALID) { + if (rs_sta->start_rate != IL_RATE_INVALID) { if (rs_sta->start_rate < index && (rate_mask & (1 << rs_sta->start_rate))) index = rs_sta->start_rate; - rs_sta->start_rate = IWL_RATE_INVALID; + rs_sta->start_rate = IL_RATE_INVALID; } /* force user max rate if set by user */ @@ -695,11 +695,11 @@ static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, fail_count = window->counter - window->success_counter; - if (((fail_count < IWL_RATE_MIN_FAILURE_TH) && - (window->success_counter < IWL_RATE_MIN_SUCCESS_TH))) { + if (((fail_count < IL_RATE_MIN_FAILURE_TH) && + (window->success_counter < IL_RATE_MIN_SUCCESS_TH))) { spin_unlock_irqrestore(&rs_sta->lock, flags); - IWL_DEBUG_RATE(priv, "Invalid average_tpt on rate %d: " + IL_DEBUG_RATE(priv, "Invalid average_tpt on rate %d: " "counter: %d, success_counter: %d, " "expected_tpt is %sNULL\n", index, @@ -708,27 +708,27 @@ static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, rs_sta->expected_tpt ? "not " : ""); /* Can't calculate this yet; not enough history */ - window->average_tpt = IWL_INVALID_VALUE; + window->average_tpt = IL_INVALID_VALUE; goto out; } current_tpt = window->average_tpt; - high_low = iwl3945_get_adjacent_rate(rs_sta, index, rate_mask, + high_low = il3945_get_adjacent_rate(rs_sta, index, rate_mask, sband->band); low = high_low & 0xff; high = (high_low >> 8) & 0xff; /* If user set max rate, dont allow higher than user constrain */ if ((max_rate_idx != -1) && (max_rate_idx < high)) - high = IWL_RATE_INVALID; + high = IL_RATE_INVALID; /* Collect Measured throughputs of adjacent rates */ - if (low != IWL_RATE_INVALID) + if (low != IL_RATE_INVALID) low_tpt = rs_sta->win[low].average_tpt; - if (high != IWL_RATE_INVALID) + if (high != IL_RATE_INVALID) high_tpt = rs_sta->win[high].average_tpt; spin_unlock_irqrestore(&rs_sta->lock, flags); @@ -736,51 +736,51 @@ static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, scale_action = 0; /* Low success ratio , need to drop the rate */ - if ((window->success_ratio < IWL_RATE_DECREASE_TH) || !current_tpt) { - IWL_DEBUG_RATE(priv, "decrease rate because of low success_ratio\n"); + if ((window->success_ratio < IL_RATE_DECREASE_TH) || !current_tpt) { + IL_DEBUG_RATE(priv, "decrease rate because of low success_ratio\n"); scale_action = -1; /* No throughput measured yet for adjacent rates, * try increase */ - } else if ((low_tpt == IWL_INVALID_VALUE) && - (high_tpt == IWL_INVALID_VALUE)) { + } else if ((low_tpt == IL_INVALID_VALUE) && + (high_tpt == IL_INVALID_VALUE)) { - if (high != IWL_RATE_INVALID && window->success_ratio >= IWL_RATE_INCREASE_TH) + if (high != IL_RATE_INVALID && window->success_ratio >= IL_RATE_INCREASE_TH) scale_action = 1; - else if (low != IWL_RATE_INVALID) + else if (low != IL_RATE_INVALID) scale_action = 0; /* Both adjacent throughputs are measured, but neither one has * better throughput; we're using the best rate, don't change * it! */ - } else if ((low_tpt != IWL_INVALID_VALUE) && - (high_tpt != IWL_INVALID_VALUE) && + } else if ((low_tpt != IL_INVALID_VALUE) && + (high_tpt != IL_INVALID_VALUE) && (low_tpt < current_tpt) && (high_tpt < current_tpt)) { - IWL_DEBUG_RATE(priv, "No action -- low [%d] & high [%d] < " + IL_DEBUG_RATE(priv, "No action -- low [%d] & high [%d] < " "current_tpt [%d]\n", low_tpt, high_tpt, current_tpt); scale_action = 0; /* At least one of the rates has better throughput */ } else { - if (high_tpt != IWL_INVALID_VALUE) { + if (high_tpt != IL_INVALID_VALUE) { /* High rate has better throughput, Increase * rate */ if (high_tpt > current_tpt && - window->success_ratio >= IWL_RATE_INCREASE_TH) + window->success_ratio >= IL_RATE_INCREASE_TH) scale_action = 1; else { - IWL_DEBUG_RATE(priv, + IL_DEBUG_RATE(priv, "decrease rate because of high tpt\n"); scale_action = 0; } - } else if (low_tpt != IWL_INVALID_VALUE) { + } else if (low_tpt != IL_INVALID_VALUE) { if (low_tpt > current_tpt) { - IWL_DEBUG_RATE(priv, + IL_DEBUG_RATE(priv, "decrease rate because of low tpt\n"); scale_action = -1; - } else if (window->success_ratio >= IWL_RATE_INCREASE_TH) { + } else if (window->success_ratio >= IL_RATE_INCREASE_TH) { /* Lower rate has better * throughput,decrease rate */ scale_action = 1; @@ -790,8 +790,8 @@ static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, /* Sanity check; asked for decrease, but success rate or throughput * has been good at old rate. Don't change it. */ - if ((scale_action == -1) && (low != IWL_RATE_INVALID) && - ((window->success_ratio > IWL_RATE_HIGH_TH) || + if ((scale_action == -1) && (low != IL_RATE_INVALID) && + ((window->success_ratio > IL_RATE_HIGH_TH) || (current_tpt > (100 * rs_sta->expected_tpt[low])))) scale_action = 0; @@ -799,13 +799,13 @@ static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, case -1: /* Decrese rate */ - if (low != IWL_RATE_INVALID) + if (low != IL_RATE_INVALID) index = low; break; case 1: /* Increase rate */ - if (high != IWL_RATE_INVALID) + if (high != IL_RATE_INVALID) index = high; break; @@ -816,32 +816,32 @@ static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, break; } - IWL_DEBUG_RATE(priv, "Selected %d (action %d) - low %d high %d\n", + IL_DEBUG_RATE(priv, "Selected %d (action %d) - low %d high %d\n", index, scale_action, low, high); out: if (sband->band == IEEE80211_BAND_5GHZ) { - if (WARN_ON_ONCE(index < IWL_FIRST_OFDM_RATE)) - index = IWL_FIRST_OFDM_RATE; + if (WARN_ON_ONCE(index < IL_FIRST_OFDM_RATE)) + index = IL_FIRST_OFDM_RATE; rs_sta->last_txrate_idx = index; - info->control.rates[0].idx = index - IWL_FIRST_OFDM_RATE; + info->control.rates[0].idx = index - IL_FIRST_OFDM_RATE; } else { rs_sta->last_txrate_idx = index; info->control.rates[0].idx = rs_sta->last_txrate_idx; } - IWL_DEBUG_RATE(priv, "leave: %d\n", index); + IL_DEBUG_RATE(priv, "leave: %d\n", index); } #ifdef CONFIG_MAC80211_DEBUGFS -static int iwl3945_open_file_generic(struct inode *inode, struct file *file) +static int il3945_open_file_generic(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; } -static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file, +static ssize_t il3945_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -849,7 +849,7 @@ static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file, int desc = 0; int j; ssize_t ret; - struct iwl3945_rs_sta *lq_sta = file->private_data; + struct il3945_rs_sta *lq_sta = file->private_data; buff = kmalloc(1024, GFP_KERNEL); if (!buff) @@ -860,7 +860,7 @@ static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file, lq_sta->tx_packets, lq_sta->last_txrate_idx, lq_sta->start_rate, jiffies_to_msecs(lq_sta->flush_time)); - for (j = 0; j < IWL_RATE_COUNT_3945; j++) { + for (j = 0; j < IL_RATE_COUNT_3945; j++) { desc += sprintf(buff+desc, "counter=%d success=%d %%=%d\n", lq_sta->win[j].counter, @@ -873,15 +873,15 @@ static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file, } static const struct file_operations rs_sta_dbgfs_stats_table_ops = { - .read = iwl3945_sta_dbgfs_stats_table_read, - .open = iwl3945_open_file_generic, + .read = il3945_sta_dbgfs_stats_table_read, + .open = il3945_open_file_generic, .llseek = default_llseek, }; -static void iwl3945_add_debugfs(void *priv, void *priv_sta, +static void il3945_add_debugfs(void *priv, void *priv_sta, struct dentry *dir) { - struct iwl3945_rs_sta *lq_sta = priv_sta; + struct il3945_rs_sta *lq_sta = priv_sta; lq_sta->rs_sta_dbgfs_stats_table_file = debugfs_create_file("rate_stats_table", 0600, dir, @@ -889,9 +889,9 @@ static void iwl3945_add_debugfs(void *priv, void *priv_sta, } -static void iwl3945_remove_debugfs(void *priv, void *priv_sta) +static void il3945_remove_debugfs(void *priv, void *priv_sta) { - struct iwl3945_rs_sta *lq_sta = priv_sta; + struct il3945_rs_sta *lq_sta = priv_sta; debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); } #endif @@ -901,7 +901,7 @@ static void iwl3945_remove_debugfs(void *priv, void *priv_sta) * the station is added. Since mac80211 calls this function before a * station is added we ignore it. */ -static void iwl3945_rs_rate_init_stub(void *priv_r, +static void il3945_rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sband, struct ieee80211_sta *sta, void *priv_sta) { @@ -910,36 +910,36 @@ static void iwl3945_rs_rate_init_stub(void *priv_r, static struct rate_control_ops rs_ops = { .module = NULL, .name = RS_NAME, - .tx_status = iwl3945_rs_tx_status, - .get_rate = iwl3945_rs_get_rate, - .rate_init = iwl3945_rs_rate_init_stub, - .alloc = iwl3945_rs_alloc, - .free = iwl3945_rs_free, - .alloc_sta = iwl3945_rs_alloc_sta, - .free_sta = iwl3945_rs_free_sta, + .tx_status = il3945_rs_tx_status, + .get_rate = il3945_rs_get_rate, + .rate_init = il3945_rs_rate_init_stub, + .alloc = il3945_rs_alloc, + .free = il3945_rs_free, + .alloc_sta = il3945_rs_alloc_sta, + .free_sta = il3945_rs_free_sta, #ifdef CONFIG_MAC80211_DEBUGFS - .add_sta_debugfs = iwl3945_add_debugfs, - .remove_sta_debugfs = iwl3945_remove_debugfs, + .add_sta_debugfs = il3945_add_debugfs, + .remove_sta_debugfs = il3945_remove_debugfs, #endif }; -void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) +void il3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) { - struct iwl_priv *priv = hw->priv; + struct il_priv *priv = hw->priv; s32 rssi = 0; unsigned long flags; - struct iwl3945_rs_sta *rs_sta; + struct il3945_rs_sta *rs_sta; struct ieee80211_sta *sta; - struct iwl3945_sta_priv *psta; + struct il3945_sta_priv *psta; - IWL_DEBUG_RATE(priv, "enter\n"); + IL_DEBUG_RATE(priv, "enter\n"); rcu_read_lock(); - sta = ieee80211_find_sta(priv->contexts[IWL_RXON_CTX_BSS].vif, + sta = ieee80211_find_sta(priv->contexts[IL_RXON_CTX_BSS].vif, priv->stations[sta_id].sta.sta.addr); if (!sta) { - IWL_DEBUG_RATE(priv, "Unable to find station to initialize rate scaling.\n"); + IL_DEBUG_RATE(priv, "Unable to find station to initialize rate scaling.\n"); rcu_read_unlock(); return; } @@ -953,16 +953,16 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) switch (priv->band) { case IEEE80211_BAND_2GHZ: /* TODO: this always does G, not a regression */ - if (priv->contexts[IWL_RXON_CTX_BSS].active.flags & + if (priv->contexts[IL_RXON_CTX_BSS].active.flags & RXON_FLG_TGG_PROTECT_MSK) { rs_sta->tgg = 1; - rs_sta->expected_tpt = iwl3945_expected_tpt_g_prot; + rs_sta->expected_tpt = il3945_expected_tpt_g_prot; } else - rs_sta->expected_tpt = iwl3945_expected_tpt_g; + rs_sta->expected_tpt = il3945_expected_tpt_g; break; case IEEE80211_BAND_5GHZ: - rs_sta->expected_tpt = iwl3945_expected_tpt_a; + rs_sta->expected_tpt = il3945_expected_tpt_a; break; case IEEE80211_NUM_BANDS: BUG(); @@ -973,24 +973,24 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) rssi = priv->_3945.last_rx_rssi; if (rssi == 0) - rssi = IWL_MIN_RSSI_VAL; + rssi = IL_MIN_RSSI_VAL; - IWL_DEBUG_RATE(priv, "Network RSSI: %d\n", rssi); + IL_DEBUG_RATE(priv, "Network RSSI: %d\n", rssi); - rs_sta->start_rate = iwl3945_get_rate_index_by_rssi(rssi, priv->band); + rs_sta->start_rate = il3945_get_rate_index_by_rssi(rssi, priv->band); - IWL_DEBUG_RATE(priv, "leave: rssi %d assign rate index: " + IL_DEBUG_RATE(priv, "leave: rssi %d assign rate index: " "%d (plcp 0x%x)\n", rssi, rs_sta->start_rate, - iwl3945_rates[rs_sta->start_rate].plcp); + il3945_rates[rs_sta->start_rate].plcp); rcu_read_unlock(); } -int iwl3945_rate_control_register(void) +int il3945_rate_control_register(void) { return ieee80211_rate_control_register(&rs_ops); } -void iwl3945_rate_control_unregister(void) +void il3945_rate_control_unregister(void) { ieee80211_rate_control_unregister(&rs_ops); } |