From 545750d36fa78203e28acefb4bab61ebb7c4d197 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 23 Nov 2009 22:21:01 +0100 Subject: [PATCH] ath9k: properly use the mac80211 rate control api This patch changes ath9k to pass proper MCS indexes and flags between the RC and the rest of the driver code. sc->cur_rate_table remains, as it's used by the RC code internally, but the rest of the driver code no longer uses it, so a potential new RC for ath9k would not have to update it. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 5 +- drivers/net/wireless/ath/ath9k/beacon.c | 10 +- drivers/net/wireless/ath/ath9k/debug.c | 14 +- drivers/net/wireless/ath/ath9k/debug.h | 5 +- drivers/net/wireless/ath/ath9k/hw.c | 12 +- drivers/net/wireless/ath/ath9k/hw.h | 2 +- drivers/net/wireless/ath/ath9k/mac.h | 1 - drivers/net/wireless/ath/ath9k/main.c | 112 ++++----- drivers/net/wireless/ath/ath9k/rc.c | 311 ++++++++++++------------ drivers/net/wireless/ath/ath9k/rc.h | 3 +- drivers/net/wireless/ath/ath9k/xmit.c | 110 ++++++--- 11 files changed, 291 insertions(+), 294 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 2a40fa2cd914..9ff53c9c4119 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -21,7 +21,6 @@ #include #include -#include "rc.h" #include "debug.h" #include "common.h" @@ -423,6 +422,7 @@ struct ath_led { #define SC_OP_BT_PRIORITY_DETECTED BIT(21) struct ath_wiphy; +struct ath_rate_table; struct ath_softc { struct ieee80211_hw *hw; @@ -467,9 +467,8 @@ struct ath_softc { struct ath_rx rx; struct ath_tx tx; struct ath_beacon beacon; - struct ieee80211_rate rates[IEEE80211_NUM_BANDS][ATH_RATE_MAX]; - const struct ath_rate_table *hw_rate_table[ATH9K_MODE_MAX]; const struct ath_rate_table *cur_rate_table; + enum wireless_mode cur_rate_mode; struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; struct ath_led radio_led; diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index b10c884f2933..cb774cc828a3 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -65,9 +65,9 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp, struct ath_common *common = ath9k_hw_common(ah); struct ath_desc *ds; struct ath9k_11n_rate_series series[4]; - const struct ath_rate_table *rt; int flags, antenna, ctsrate = 0, ctsduration = 0; - u8 rate; + struct ieee80211_supported_band *sband; + u8 rate = 0; ds = bf->bf_desc; flags = ATH9K_TXDESC_NOACK; @@ -91,10 +91,10 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp, ds->ds_data = bf->bf_buf_addr; - rt = sc->cur_rate_table; - rate = rt->info[0].ratecode; + sband = &sc->sbands[common->hw->conf.channel->band]; + rate = sband->bitrates[0].hw_value; if (sc->sc_flags & SC_OP_PREAMBLE_SHORT) - rate |= rt->info[0].short_preamble; + rate |= sband->bitrates[0].hw_value_short; ath9k_hw_set11n_txdesc(ah, ds, skb->len + FCS_LEN, ATH9K_PKT_TYPE_BEACON, diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 06f1fcfb03e9..608fa06e531c 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -255,21 +255,11 @@ static const struct file_operations fops_interrupt = { .owner = THIS_MODULE }; -void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb) +void ath_debug_stat_rc(struct ath_softc *sc, int final_rate) { - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ieee80211_tx_rate *rates = tx_info->status.rates; - int final_ts_idx = 0, idx, i; struct ath_rc_stats *stats; - for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { - if (!rates[i].count) - break; - - final_ts_idx = i; - } - idx = rates[final_ts_idx].idx; - stats = &sc->debug.stats.rcstats[idx]; + stats = &sc->debug.stats.rcstats[final_rate]; stats->success++; } diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index 749e85d57551..f282eeef669b 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -18,6 +18,7 @@ #define DEBUG_H #include "hw.h" +#include "rc.h" struct ath_txq; struct ath_buf; @@ -138,7 +139,7 @@ void ath9k_exit_debug(struct ath_hw *ah); int ath9k_debug_create_root(void); void ath9k_debug_remove_root(void); void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status); -void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb); +void ath_debug_stat_rc(struct ath_softc *sc, int final_rate); void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq, struct ath_buf *bf); void ath_debug_stat_retries(struct ath_softc *sc, int rix, @@ -170,7 +171,7 @@ static inline void ath_debug_stat_interrupt(struct ath_softc *sc, } static inline void ath_debug_stat_rc(struct ath_softc *sc, - struct sk_buff *skb) + int final_rate) { } diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 53a7b980d8f6..63d84613dc96 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -148,22 +148,19 @@ bool ath9k_get_channel_edges(struct ath_hw *ah, } u16 ath9k_hw_computetxtime(struct ath_hw *ah, - const struct ath_rate_table *rates, + u8 phy, int kbps, u32 frameLen, u16 rateix, bool shortPreamble) { u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime; - u32 kbps; - - kbps = rates->info[rateix].ratekbps; if (kbps == 0) return 0; - switch (rates->info[rateix].phy) { + switch (phy) { case WLAN_RC_PHY_CCK: phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS; - if (shortPreamble && rates->info[rateix].short_preamble) + if (shortPreamble) phyTime >>= 1; numBits = frameLen << 3; txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps); @@ -194,8 +191,7 @@ u16 ath9k_hw_computetxtime(struct ath_hw *ah, break; default: ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL, - "Unknown phy %u (rate ix %u)\n", - rates->info[rateix].phy, rateix); + "Unknown phy %u (rate ix %u)\n", phy, rateix); txTime = 0; break; } diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index a22ed766b6ae..b12634262d97 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -647,7 +647,7 @@ bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout); u32 ath9k_hw_reverse_bits(u32 val, u32 n); bool ath9k_get_channel_edges(struct ath_hw *ah, u16 flags, u16 *low, u16 *high); u16 ath9k_hw_computetxtime(struct ath_hw *ah, - const struct ath_rate_table *rates, + u8 phy, int kbps, u32 frameLen, u16 rateix, bool shortPreamble); void ath9k_hw_get_channel_centers(struct ath_hw *ah, struct ath9k_channel *chan, diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h index fefb65dafb1c..29dfe14751a7 100644 --- a/drivers/net/wireless/ath/ath9k/mac.h +++ b/drivers/net/wireless/ath/ath9k/mac.h @@ -616,7 +616,6 @@ enum ath9k_cipher { struct ath_hw; struct ath9k_channel; -struct ath_rate_table; u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q); void ath9k_hw_puttxbuf(struct ath_hw *ah, u32 q, u32 txdp); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index cbf5d2a1bb26..bd1e2de3a1f9 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -104,37 +104,55 @@ static struct ieee80211_channel ath9k_5ghz_chantable[] = { CHAN5G(5825, 37), /* Channel 165 */ }; +/* Atheros hardware rate code addition for short premble */ +#define SHPCHECK(__hw_rate, __flags) \ + ((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04 ) : 0) + +#define RATE(_bitrate, _hw_rate, _flags) { \ + .bitrate = (_bitrate), \ + .flags = (_flags), \ + .hw_value = (_hw_rate), \ + .hw_value_short = (SHPCHECK(_hw_rate, _flags)) \ +} + +static struct ieee80211_rate ath9k_legacy_rates[] = { + RATE(10, 0x1b, 0), + RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(60, 0x0b, 0), + RATE(90, 0x0f, 0), + RATE(120, 0x0a, 0), + RATE(180, 0x0e, 0), + RATE(240, 0x09, 0), + RATE(360, 0x0d, 0), + RATE(480, 0x08, 0), + RATE(540, 0x0c, 0), +}; + static void ath_cache_conf_rate(struct ath_softc *sc, struct ieee80211_conf *conf) { switch (conf->channel->band) { case IEEE80211_BAND_2GHZ: if (conf_is_ht20(conf)) - sc->cur_rate_table = - sc->hw_rate_table[ATH9K_MODE_11NG_HT20]; + sc->cur_rate_mode = ATH9K_MODE_11NG_HT20; else if (conf_is_ht40_minus(conf)) - sc->cur_rate_table = - sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS]; + sc->cur_rate_mode = ATH9K_MODE_11NG_HT40MINUS; else if (conf_is_ht40_plus(conf)) - sc->cur_rate_table = - sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS]; + sc->cur_rate_mode = ATH9K_MODE_11NG_HT40PLUS; else - sc->cur_rate_table = - sc->hw_rate_table[ATH9K_MODE_11G]; + sc->cur_rate_mode = ATH9K_MODE_11G; break; case IEEE80211_BAND_5GHZ: if (conf_is_ht20(conf)) - sc->cur_rate_table = - sc->hw_rate_table[ATH9K_MODE_11NA_HT20]; + sc->cur_rate_mode = ATH9K_MODE_11NA_HT20; else if (conf_is_ht40_minus(conf)) - sc->cur_rate_table = - sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS]; + sc->cur_rate_mode = ATH9K_MODE_11NA_HT40MINUS; else if (conf_is_ht40_plus(conf)) - sc->cur_rate_table = - sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS]; + sc->cur_rate_mode = ATH9K_MODE_11NA_HT40PLUS; else - sc->cur_rate_table = - sc->hw_rate_table[ATH9K_MODE_11A]; + sc->cur_rate_mode = ATH9K_MODE_11A; break; default: BUG_ON(1); @@ -190,51 +208,6 @@ static u8 parse_mpdudensity(u8 mpdudensity) } } -static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) -{ - const struct ath_rate_table *rate_table = NULL; - struct ieee80211_supported_band *sband; - struct ieee80211_rate *rate; - int i, maxrates; - - switch (band) { - case IEEE80211_BAND_2GHZ: - rate_table = sc->hw_rate_table[ATH9K_MODE_11G]; - break; - case IEEE80211_BAND_5GHZ: - rate_table = sc->hw_rate_table[ATH9K_MODE_11A]; - break; - default: - break; - } - - if (rate_table == NULL) - return; - - sband = &sc->sbands[band]; - rate = sc->rates[band]; - - if (rate_table->rate_cnt > ATH_RATE_MAX) - maxrates = ATH_RATE_MAX; - else - maxrates = rate_table->rate_cnt; - - for (i = 0; i < maxrates; i++) { - rate[i].bitrate = rate_table->info[i].ratekbps / 100; - rate[i].hw_value = rate_table->info[i].ratecode; - if (rate_table->info[i].short_preamble) { - rate[i].hw_value_short = rate_table->info[i].ratecode | - rate_table->info[i].short_preamble; - rate[i].flags = IEEE80211_RATE_SHORT_PREAMBLE; - } - sband->n_bitrates++; - - ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, - "Rate: %2dMbps, ratecode: %2d\n", - rate[i].bitrate / 10, rate[i].hw_value); - } -} - static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, struct ieee80211_hw *hw) { @@ -1701,12 +1674,6 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid, /* default to MONITOR mode */ sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; - /* Setup rate tables */ - - ath_rate_attach(sc); - ath_setup_rates(sc, IEEE80211_BAND_2GHZ); - ath_setup_rates(sc, IEEE80211_BAND_5GHZ); - /* * Allocate hardware transmit queues: one queue for * beacon frames and one data queue for each QoS @@ -1827,19 +1794,22 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid, /* setup channels and rates */ sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; - sc->sbands[IEEE80211_BAND_2GHZ].bitrates = - sc->rates[IEEE80211_BAND_2GHZ]; sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; sc->sbands[IEEE80211_BAND_2GHZ].n_channels = ARRAY_SIZE(ath9k_2ghz_chantable); + sc->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates; + sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates = + ARRAY_SIZE(ath9k_legacy_rates); if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; - sc->sbands[IEEE80211_BAND_5GHZ].bitrates = - sc->rates[IEEE80211_BAND_5GHZ]; sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; sc->sbands[IEEE80211_BAND_5GHZ].n_channels = ARRAY_SIZE(ath9k_5ghz_chantable); + sc->sbands[IEEE80211_BAND_5GHZ].bitrates = + ath9k_legacy_rates + 4; + sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates = + ARRAY_SIZE(ath9k_legacy_rates) - 4; } switch (ah->btcoex_hw.scheme) { diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 1d96777b4cd2..66d3004af2bc 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -19,132 +19,133 @@ static const struct ath_rate_table ar5416_11na_ratetable = { 42, + 8, /* MCS start */ { { VALID, VALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ - 5400, 0x0b, 0x00, 12, + 5400, 0, 0x00, 12, 0, 0, 0, 0, 0, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ - 7800, 0x0f, 0x00, 18, + 7800, 1, 0x00, 18, 0, 1, 1, 1, 1, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ - 10000, 0x0a, 0x00, 24, + 10000, 2, 0x00, 24, 2, 2, 2, 2, 2, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ - 13900, 0x0e, 0x00, 36, + 13900, 3, 0x00, 36, 2, 3, 3, 3, 3, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ - 17300, 0x09, 0x00, 48, + 17300, 4, 0x00, 48, 4, 4, 4, 4, 4, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ - 23000, 0x0d, 0x00, 72, + 23000, 5, 0x00, 72, 4, 5, 5, 5, 5, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ - 27400, 0x08, 0x00, 96, + 27400, 6, 0x00, 96, 4, 6, 6, 6, 6, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ - 29300, 0x0c, 0x00, 108, + 29300, 7, 0x00, 108, 4, 7, 7, 7, 7, 0 }, { VALID_2040, VALID_2040, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */ - 6400, 0x80, 0x00, 0, + 6400, 0, 0x00, 0, 0, 8, 24, 8, 24, 3216 }, { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 13000, /* 13 Mb */ - 12700, 0x81, 0x00, 1, + 12700, 1, 0x00, 1, 2, 9, 25, 9, 25, 6434 }, { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 19500, /* 19.5 Mb */ - 18800, 0x82, 0x00, 2, + 18800, 2, 0x00, 2, 2, 10, 26, 10, 26, 9650 }, { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 26000, /* 26 Mb */ - 25000, 0x83, 0x00, 3, + 25000, 3, 0x00, 3, 4, 11, 27, 11, 27, 12868 }, { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 39000, /* 39 Mb */ - 36700, 0x84, 0x00, 4, + 36700, 4, 0x00, 4, 4, 12, 28, 12, 28, 19304 }, { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 52000, /* 52 Mb */ - 48100, 0x85, 0x00, 5, + 48100, 5, 0x00, 5, 4, 13, 29, 13, 29, 25740 }, { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 58500, /* 58.5 Mb */ - 53500, 0x86, 0x00, 6, + 53500, 6, 0x00, 6, 4, 14, 30, 14, 30, 28956 }, { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 65000, /* 65 Mb */ - 59000, 0x87, 0x00, 7, + 59000, 7, 0x00, 7, 4, 15, 31, 15, 32, 32180 }, { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 13000, /* 13 Mb */ - 12700, 0x88, 0x00, + 12700, 8, 0x00, 8, 3, 16, 33, 16, 33, 6430 }, { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 26000, /* 26 Mb */ - 24800, 0x89, 0x00, 9, + 24800, 9, 0x00, 9, 2, 17, 34, 17, 34, 12860 }, { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 39000, /* 39 Mb */ - 36600, 0x8a, 0x00, 10, + 36600, 10, 0x00, 10, 2, 18, 35, 18, 35, 19300 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 52000, /* 52 Mb */ - 48100, 0x8b, 0x00, 11, + 48100, 11, 0x00, 11, 4, 19, 36, 19, 36, 25736 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 78000, /* 78 Mb */ - 69500, 0x8c, 0x00, 12, + 69500, 12, 0x00, 12, 4, 20, 37, 20, 37, 38600 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 104000, /* 104 Mb */ - 89500, 0x8d, 0x00, 13, + 89500, 13, 0x00, 13, 4, 21, 38, 21, 38, 51472 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 117000, /* 117 Mb */ - 98900, 0x8e, 0x00, 14, + 98900, 14, 0x00, 14, 4, 22, 39, 22, 39, 57890 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 130000, /* 130 Mb */ - 108300, 0x8f, 0x00, 15, + 108300, 15, 0x00, 15, 4, 23, 40, 23, 41, 64320 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 13500, /* 13.5 Mb */ - 13200, 0x80, 0x00, 0, + 13200, 0, 0x00, 0, 0, 8, 24, 24, 24, 6684 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 27500, /* 27.0 Mb */ - 25900, 0x81, 0x00, 1, + 25900, 1, 0x00, 1, 2, 9, 25, 25, 25, 13368 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 40500, /* 40.5 Mb */ - 38600, 0x82, 0x00, 2, + 38600, 2, 0x00, 2, 2, 10, 26, 26, 26, 20052 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 54000, /* 54 Mb */ - 49800, 0x83, 0x00, 3, + 49800, 3, 0x00, 3, 4, 11, 27, 27, 27, 26738 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 81500, /* 81 Mb */ - 72200, 0x84, 0x00, 4, + 72200, 4, 0x00, 4, 4, 12, 28, 28, 28, 40104 }, { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 108000, /* 108 Mb */ - 92900, 0x85, 0x00, 5, + 92900, 5, 0x00, 5, 4, 13, 29, 29, 29, 53476 }, { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 121500, /* 121.5 Mb */ - 102700, 0x86, 0x00, 6, + 102700, 6, 0x00, 6, 4, 14, 30, 30, 30, 60156 }, { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 135000, /* 135 Mb */ - 112000, 0x87, 0x00, 7, + 112000, 7, 0x00, 7, 4, 15, 31, 32, 32, 66840 }, { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, /* 150 Mb */ - 122000, 0x87, 0x00, 7, + 122000, 7, 0x00, 7, 4, 15, 31, 32, 32, 74200 }, { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 27000, /* 27 Mb */ - 25800, 0x88, 0x00, 8, + 25800, 8, 0x00, 8, 0, 16, 33, 33, 33, 13360 }, { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 54000, /* 54 Mb */ - 49800, 0x89, 0x00, 9, + 49800, 9, 0x00, 9, 2, 17, 34, 34, 34, 26720 }, { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 81000, /* 81 Mb */ - 71900, 0x8a, 0x00, 10, + 71900, 10, 0x00, 10, 2, 18, 35, 35, 35, 40080 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 108000, /* 108 Mb */ - 92500, 0x8b, 0x00, 11, + 92500, 11, 0x00, 11, 4, 19, 36, 36, 36, 53440 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 162000, /* 162 Mb */ - 130300, 0x8c, 0x00, 12, + 130300, 12, 0x00, 12, 4, 20, 37, 37, 37, 80160 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 216000, /* 216 Mb */ - 162800, 0x8d, 0x00, 13, + 162800, 13, 0x00, 13, 4, 21, 38, 38, 38, 106880 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 243000, /* 243 Mb */ - 178200, 0x8e, 0x00, 14, + 178200, 14, 0x00, 14, 4, 22, 39, 39, 39, 120240 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 270000, /* 270 Mb */ - 192100, 0x8f, 0x00, 15, + 192100, 15, 0x00, 15, 4, 23, 40, 41, 41, 133600 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS_HGI, 300000, /* 300 Mb */ - 207000, 0x8f, 0x00, 15, + 207000, 15, 0x00, 15, 4, 23, 40, 41, 41, 148400 }, }, 50, /* probe interval */ @@ -156,144 +157,145 @@ static const struct ath_rate_table ar5416_11na_ratetable = { static const struct ath_rate_table ar5416_11ng_ratetable = { 46, + 12, /* MCS start */ { { VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */ - 900, 0x1b, 0x00, 2, + 900, 0, 0x00, 2, 0, 0, 0, 0, 0, 0 }, { VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */ - 1900, 0x1a, 0x04, 4, + 1900, 1, 0x04, 4, 1, 1, 1, 1, 1, 0 }, { VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */ - 4900, 0x19, 0x04, 11, + 4900, 2, 0x04, 11, 2, 2, 2, 2, 2, 0 }, { VALID_ALL, VALID_ALL, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */ - 8100, 0x18, 0x04, 22, + 8100, 3, 0x04, 22, 3, 3, 3, 3, 3, 0 }, { INVALID, INVALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ - 5400, 0x0b, 0x00, 12, + 5400, 4, 0x00, 12, 4, 4, 4, 4, 4, 0 }, { INVALID, INVALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ - 7800, 0x0f, 0x00, 18, + 7800, 5, 0x00, 18, 4, 5, 5, 5, 5, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ - 10100, 0x0a, 0x00, 24, + 10100, 6, 0x00, 24, 6, 6, 6, 6, 6, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ - 14100, 0x0e, 0x00, 36, + 14100, 7, 0x00, 36, 6, 7, 7, 7, 7, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ - 17700, 0x09, 0x00, 48, + 17700, 8, 0x00, 48, 8, 8, 8, 8, 8, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ - 23700, 0x0d, 0x00, 72, + 23700, 9, 0x00, 72, 8, 9, 9, 9, 9, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ - 27400, 0x08, 0x00, 96, + 27400, 10, 0x00, 96, 8, 10, 10, 10, 10, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ - 30900, 0x0c, 0x00, 108, + 30900, 11, 0x00, 108, 8, 11, 11, 11, 11, 0 }, { INVALID, INVALID, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */ - 6400, 0x80, 0x00, 0, + 6400, 0, 0x00, 0, 4, 12, 28, 12, 28, 3216 }, { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 13000, /* 13 Mb */ - 12700, 0x81, 0x00, 1, + 12700, 1, 0x00, 1, 6, 13, 29, 13, 29, 6434 }, { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 19500, /* 19.5 Mb */ - 18800, 0x82, 0x00, 2, + 18800, 2, 0x00, 2, 6, 14, 30, 14, 30, 9650 }, { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 26000, /* 26 Mb */ - 25000, 0x83, 0x00, 3, + 25000, 3, 0x00, 3, 8, 15, 31, 15, 31, 12868 }, { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 39000, /* 39 Mb */ - 36700, 0x84, 0x00, 4, + 36700, 4, 0x00, 4, 8, 16, 32, 16, 32, 19304 }, { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 52000, /* 52 Mb */ - 48100, 0x85, 0x00, 5, + 48100, 5, 0x00, 5, 8, 17, 33, 17, 33, 25740 }, { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 58500, /* 58.5 Mb */ - 53500, 0x86, 0x00, 6, + 53500, 6, 0x00, 6, 8, 18, 34, 18, 34, 28956 }, { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 65000, /* 65 Mb */ - 59000, 0x87, 0x00, 7, + 59000, 7, 0x00, 7, 8, 19, 35, 19, 36, 32180 }, { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 13000, /* 13 Mb */ - 12700, 0x88, 0x00, 8, + 12700, 8, 0x00, 8, 4, 20, 37, 20, 37, 6430 }, { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 26000, /* 26 Mb */ - 24800, 0x89, 0x00, 9, + 24800, 9, 0x00, 9, 6, 21, 38, 21, 38, 12860 }, { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 39000, /* 39 Mb */ - 36600, 0x8a, 0x00, 10, + 36600, 10, 0x00, 10, 6, 22, 39, 22, 39, 19300 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 52000, /* 52 Mb */ - 48100, 0x8b, 0x00, 11, + 48100, 11, 0x00, 11, 8, 23, 40, 23, 40, 25736 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 78000, /* 78 Mb */ - 69500, 0x8c, 0x00, 12, + 69500, 12, 0x00, 12, 8, 24, 41, 24, 41, 38600 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 104000, /* 104 Mb */ - 89500, 0x8d, 0x00, 13, + 89500, 13, 0x00, 13, 8, 25, 42, 25, 42, 51472 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 117000, /* 117 Mb */ - 98900, 0x8e, 0x00, 14, + 98900, 14, 0x00, 14, 8, 26, 43, 26, 44, 57890 }, { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 130000, /* 130 Mb */ - 108300, 0x8f, 0x00, 15, + 108300, 15, 0x00, 15, 8, 27, 44, 27, 45, 64320 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 13500, /* 13.5 Mb */ - 13200, 0x80, 0x00, 0, + 13200, 0, 0x00, 0, 8, 12, 28, 28, 28, 6684 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 27500, /* 27.0 Mb */ - 25900, 0x81, 0x00, 1, + 25900, 1, 0x00, 1, 8, 13, 29, 29, 29, 13368 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 40500, /* 40.5 Mb */ - 38600, 0x82, 0x00, 2, + 38600, 2, 0x00, 2, 8, 14, 30, 30, 30, 20052 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 54000, /* 54 Mb */ - 49800, 0x83, 0x00, 3, + 49800, 3, 0x00, 3, 8, 15, 31, 31, 31, 26738 }, { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 81500, /* 81 Mb */ - 72200, 0x84, 0x00, 4, + 72200, 4, 0x00, 4, 8, 16, 32, 32, 32, 40104 }, { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 108000, /* 108 Mb */ - 92900, 0x85, 0x00, 5, + 92900, 5, 0x00, 5, 8, 17, 33, 33, 33, 53476 }, { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 121500, /* 121.5 Mb */ - 102700, 0x86, 0x00, 6, + 102700, 6, 0x00, 6, 8, 18, 34, 34, 34, 60156 }, { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 135000, /* 135 Mb */ - 112000, 0x87, 0x00, 7, + 112000, 7, 0x00, 7, 8, 19, 35, 36, 36, 66840 }, { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, /* 150 Mb */ - 122000, 0x87, 0x00, 7, + 122000, 7, 0x00, 7, 8, 19, 35, 36, 36, 74200 }, { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 27000, /* 27 Mb */ - 25800, 0x88, 0x00, 8, + 25800, 8, 0x00, 8, 8, 20, 37, 37, 37, 13360 }, { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 54000, /* 54 Mb */ - 49800, 0x89, 0x00, 9, + 49800, 9, 0x00, 9, 8, 21, 38, 38, 38, 26720 }, { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 81000, /* 81 Mb */ - 71900, 0x8a, 0x00, 10, + 71900, 10, 0x00, 10, 8, 22, 39, 39, 39, 40080 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 108000, /* 108 Mb */ - 92500, 0x8b, 0x00, 11, + 92500, 11, 0x00, 11, 8, 23, 40, 40, 40, 53440 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 162000, /* 162 Mb */ - 130300, 0x8c, 0x00, 12, + 130300, 12, 0x00, 12, 8, 24, 41, 41, 41, 80160 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 216000, /* 216 Mb */ - 162800, 0x8d, 0x00, 13, + 162800, 13, 0x00, 13, 8, 25, 42, 42, 42, 106880 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 243000, /* 243 Mb */ - 178200, 0x8e, 0x00, 14, + 178200, 14, 0x00, 14, 8, 26, 43, 43, 43, 120240 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 270000, /* 270 Mb */ - 192100, 0x8f, 0x00, 15, + 192100, 15, 0x00, 15, 8, 27, 44, 45, 45, 133600 }, { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS_HGI, 300000, /* 300 Mb */ - 207000, 0x8f, 0x00, 15, + 207000, 15, 0x00, 15, 8, 27, 44, 45, 45, 148400 }, }, 50, /* probe interval */ @@ -302,30 +304,31 @@ static const struct ath_rate_table ar5416_11ng_ratetable = { static const struct ath_rate_table ar5416_11a_ratetable = { 8, + 0, { { VALID, VALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ - 5400, 0x0b, 0x00, (0x80|12), + 5400, 0, 0x00, 12, 0, 0, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ - 7800, 0x0f, 0x00, 18, + 7800, 1, 0x00, 18, 0, 1, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ - 10000, 0x0a, 0x00, (0x80|24), + 10000, 2, 0x00, 24, 2, 2, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ - 13900, 0x0e, 0x00, 36, + 13900, 3, 0x00, 36, 2, 3, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ - 17300, 0x09, 0x00, (0x80|48), + 17300, 4, 0x00, 48, 4, 4, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ - 23000, 0x0d, 0x00, 72, + 23000, 5, 0x00, 72, 4, 5, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ - 27400, 0x08, 0x00, 96, + 27400, 6, 0x00, 96, 4, 6, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ - 29300, 0x0c, 0x00, 108, + 29300, 7, 0x00, 108, 4, 7, 0 }, }, 50, /* probe interval */ @@ -334,48 +337,63 @@ static const struct ath_rate_table ar5416_11a_ratetable = { static const struct ath_rate_table ar5416_11g_ratetable = { 12, + 0, { { VALID, VALID, WLAN_RC_PHY_CCK, 1000, /* 1 Mb */ - 900, 0x1b, 0x00, 2, + 900, 0, 0x00, 2, 0, 0, 0 }, { VALID, VALID, WLAN_RC_PHY_CCK, 2000, /* 2 Mb */ - 1900, 0x1a, 0x04, 4, + 1900, 1, 0x04, 4, 1, 1, 0 }, { VALID, VALID, WLAN_RC_PHY_CCK, 5500, /* 5.5 Mb */ - 4900, 0x19, 0x04, 11, + 4900, 2, 0x04, 11, 2, 2, 0 }, { VALID, VALID, WLAN_RC_PHY_CCK, 11000, /* 11 Mb */ - 8100, 0x18, 0x04, 22, + 8100, 3, 0x04, 22, 3, 3, 0 }, { INVALID, INVALID, WLAN_RC_PHY_OFDM, 6000, /* 6 Mb */ - 5400, 0x0b, 0x00, 12, + 5400, 4, 0x00, 12, 4, 4, 0 }, { INVALID, INVALID, WLAN_RC_PHY_OFDM, 9000, /* 9 Mb */ - 7800, 0x0f, 0x00, 18, + 7800, 5, 0x00, 18, 4, 5, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 12000, /* 12 Mb */ - 10000, 0x0a, 0x00, 24, + 10000, 6, 0x00, 24, 6, 6, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 18000, /* 18 Mb */ - 13900, 0x0e, 0x00, 36, + 13900, 7, 0x00, 36, 6, 7, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 24000, /* 24 Mb */ - 17300, 0x09, 0x00, 48, + 17300, 8, 0x00, 48, 8, 8, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 36000, /* 36 Mb */ - 23000, 0x0d, 0x00, 72, + 23000, 9, 0x00, 72, 8, 9, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 48000, /* 48 Mb */ - 27400, 0x08, 0x00, 96, + 27400, 10, 0x00, 96, 8, 10, 0 }, { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */ - 29300, 0x0c, 0x00, 108, + 29300, 11, 0x00, 108, 8, 11, 0 }, }, 50, /* probe interval */ 0, /* Phy rates allowed initially */ }; +static const struct ath_rate_table *hw_rate_table[ATH9K_MODE_MAX] = { + [ATH9K_MODE_11A] = &ar5416_11a_ratetable, + [ATH9K_MODE_11G] = &ar5416_11g_ratetable, + [ATH9K_MODE_11NA_HT20] = &ar5416_11na_ratetable, + [ATH9K_MODE_11NG_HT20] = &ar5416_11ng_ratetable, + [ATH9K_MODE_11NA_HT40PLUS] = &ar5416_11na_ratetable, + [ATH9K_MODE_11NA_HT40MINUS] = &ar5416_11na_ratetable, + [ATH9K_MODE_11NG_HT40PLUS] = &ar5416_11ng_ratetable, + [ATH9K_MODE_11NG_HT40MINUS] = &ar5416_11ng_ratetable, +}; + +static int ath_rc_get_rateindex(const struct ath_rate_table *rate_table, + struct ieee80211_tx_rate *rate); + static inline int8_t median(int8_t a, int8_t b, int8_t c) { if (a >= b) { @@ -534,7 +552,7 @@ static u8 ath_rc_setvalid_rates(struct ath_rate_priv *ath_rc_priv, * capflag matches one of the validity * (VALID/VALID_20/VALID_40) flags */ - if (((rate & 0x7F) == (dot11rate & 0x7F)) && + if ((rate == dot11rate) && ((valid & WLAN_RC_CAP_MODE(capflag)) == WLAN_RC_CAP_MODE(capflag)) && !WLAN_RC_PHY_HT(phy)) { @@ -576,8 +594,7 @@ static u8 ath_rc_setvalid_htrates(struct ath_rate_priv *ath_rc_priv, u8 rate = rateset->rs_rates[i]; u8 dot11rate = rate_table->info[j].dot11rate; - if (((rate & 0x7F) != (dot11rate & 0x7F)) || - !WLAN_RC_PHY_HT(phy) || + if ((rate != dot11rate) || !WLAN_RC_PHY_HT(phy) || !WLAN_RC_PHY_HT_VALID(valid, capflag)) continue; @@ -696,18 +713,20 @@ static void ath_rc_rate_set_series(const struct ath_rate_table *rate_table, u8 tries, u8 rix, int rtsctsenable) { rate->count = tries; - rate->idx = rix; + rate->idx = rate_table->info[rix].ratecode; if (txrc->short_preamble) rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE; if (txrc->rts || rtsctsenable) rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS; - if (WLAN_RC_PHY_40(rate_table->info[rix].phy)) - rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; - if (WLAN_RC_PHY_SGI(rate_table->info[rix].phy)) - rate->flags |= IEEE80211_TX_RC_SHORT_GI; - if (WLAN_RC_PHY_HT(rate_table->info[rix].phy)) + + if (WLAN_RC_PHY_HT(rate_table->info[rix].phy)) { rate->flags |= IEEE80211_TX_RC_MCS; + if (WLAN_RC_PHY_40(rate_table->info[rix].phy)) + rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; + if (WLAN_RC_PHY_SGI(rate_table->info[rix].phy)) + rate->flags |= IEEE80211_TX_RC_SHORT_GI; + } } static void ath_rc_rate_set_rtscts(struct ath_softc *sc, @@ -720,7 +739,7 @@ static void ath_rc_rate_set_rtscts(struct ath_softc *sc, /* get the cix for the lowest valid rix */ for (i = 3; i >= 0; i--) { if (rates[i].count && (rates[i].idx >= 0)) { - rix = rates[i].idx; + rix = ath_rc_get_rateindex(rate_table, &rates[i]); break; } } @@ -1080,15 +1099,19 @@ static int ath_rc_get_rateindex(const struct ath_rate_table *rate_table, { int rix; + if (!(rate->flags & IEEE80211_TX_RC_MCS)) + return rate->idx; + + rix = rate->idx + rate_table->mcs_start; if ((rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && (rate->flags & IEEE80211_TX_RC_SHORT_GI)) - rix = rate_table->info[rate->idx].ht_index; + rix = rate_table->info[rix].ht_index; else if (rate->flags & IEEE80211_TX_RC_SHORT_GI) - rix = rate_table->info[rate->idx].sgi_index; + rix = rate_table->info[rix].sgi_index; else if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) - rix = rate_table->info[rate->idx].cw40index; + rix = rate_table->info[rix].cw40index; else - rix = rate_table->info[rate->idx].base_index; + rix = rate_table->info[rix].base_index; return rix; } @@ -1183,7 +1206,9 @@ struct ath_rate_table *ath_choose_rate_table(struct ath_softc *sc, ath_print(common, ATH_DBG_CONFIG, "Choosing rate table for mode: %d\n", mode); - return sc->hw_rate_table[mode]; + + sc->cur_rate_mode = mode; + return hw_rate_table[mode]; } static void ath_rc_init(struct ath_softc *sc, @@ -1197,12 +1222,6 @@ static void ath_rc_init(struct ath_softc *sc, u8 *ht_mcs = (u8 *)&ath_rc_priv->neg_ht_rates; u8 i, j, k, hi = 0, hthi = 0; - if (!rate_table) { - ath_print(common, ATH_DBG_FATAL, - "Rate table not initialized\n"); - return; - } - /* Initial rate table size. Will change depending * on the working rate set */ ath_rc_priv->rate_table_size = RATE_TABLE_SIZE; @@ -1357,7 +1376,8 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, } } - ath_debug_stat_rc(sc, skb); + ath_debug_stat_rc(sc, ath_rc_get_rateindex(sc->cur_rate_table, + &tx_info->status.rates[final_ts_idx])); } static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband, @@ -1365,7 +1385,7 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband, { struct ath_softc *sc = priv; struct ath_rate_priv *ath_rc_priv = priv_sta; - const struct ath_rate_table *rate_table = NULL; + const struct ath_rate_table *rate_table; bool is_cw40, is_sgi40; int i, j = 0; @@ -1397,11 +1417,9 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband, (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) || (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)) { rate_table = ath_choose_rate_table(sc, sband->band, - sta->ht_cap.ht_supported, - is_cw40); - } else if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) { - /* cur_rate_table would be set on init through config() */ - rate_table = sc->cur_rate_table; + sta->ht_cap.ht_supported, is_cw40); + } else { + rate_table = hw_rate_table[sc->cur_rate_mode]; } ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, is_cw40, is_sgi40); @@ -1445,6 +1463,7 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband, ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, "Operating HT Bandwidth changed to: %d\n", sc->hw->conf.channel_type); + sc->cur_rate_table = hw_rate_table[sc->cur_rate_mode]; } } } @@ -1497,26 +1516,6 @@ static struct rate_control_ops ath_rate_ops = { .free_sta = ath_rate_free_sta, }; -void ath_rate_attach(struct ath_softc *sc) -{ - sc->hw_rate_table[ATH9K_MODE_11A] = - &ar5416_11a_ratetable; - sc->hw_rate_table[ATH9K_MODE_11G] = - &ar5416_11g_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NA_HT20] = - &ar5416_11na_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NG_HT20] = - &ar5416_11ng_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS] = - &ar5416_11na_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS] = - &ar5416_11na_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS] = - &ar5416_11ng_ratetable; - sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS] = - &ar5416_11ng_ratetable; -} - int ath_rate_control_register(void) { return ieee80211_rate_control_register(&ath_rate_ops); diff --git a/drivers/net/wireless/ath/ath9k/rc.h b/drivers/net/wireless/ath/ath9k/rc.h index 51f85ecbe88d..d68bc946bb3a 100644 --- a/drivers/net/wireless/ath/ath9k/rc.h +++ b/drivers/net/wireless/ath/ath9k/rc.h @@ -104,6 +104,7 @@ enum { */ struct ath_rate_table { int rate_cnt; + int mcs_start; struct { int valid; int valid_single_stream; @@ -179,8 +180,6 @@ enum ath9k_internal_frame_type { ATH9K_INT_UNPAUSE }; -void ath_rate_attach(struct ath_softc *sc); -u8 ath_rate_findrateix(struct ath_softc *sc, u8 dot11_rate); int ath_rate_control_register(void); void ath_rate_control_unregister(void); diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 745d91995d78..2bb8c91bf4f9 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -70,6 +70,29 @@ static int ath_tx_num_badfrms(struct ath_softc *sc, struct ath_buf *bf, static void ath_tx_rc_status(struct ath_buf *bf, struct ath_desc *ds, int nbad, int txok, bool update_rc); +enum { + MCS_DEFAULT, + MCS_HT40, + MCS_HT40_SGI, +}; + +static int ath_max_4ms_framelen[3][16] = { + [MCS_DEFAULT] = { + 3216, 6434, 9650, 12868, 19304, 25740, 28956, 32180, + 6430, 12860, 19300, 25736, 38600, 51472, 57890, 64320, + }, + [MCS_HT40] = { + 6684, 13368, 20052, 26738, 40104, 53476, 60156, 66840, + 13360, 26720, 40080, 53440, 80160, 106880, 120240, 133600, + }, + [MCS_HT40_SGI] = { + /* TODO: Only MCS 7 and 15 updated, recalculate the rest */ + 6684, 13368, 20052, 26738, 40104, 53476, 60156, 74200, + 13360, 26720, 40080, 53440, 80160, 106880, 120240, 148400, + } +}; + + /*********************/ /* Aggregation logic */ /*********************/ @@ -459,7 +482,6 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf, struct ath_atx_tid *tid) { - const struct ath_rate_table *rate_table = sc->cur_rate_table; struct sk_buff *skb; struct ieee80211_tx_info *tx_info; struct ieee80211_tx_rate *rates; @@ -480,12 +502,20 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf, for (i = 0; i < 4; i++) { if (rates[i].count) { - if (!WLAN_RC_PHY_HT(rate_table->info[rates[i].idx].phy)) { + int modeidx; + if (!(rates[i].flags & IEEE80211_TX_RC_MCS)) { legacy = 1; break; } - frmlen = rate_table->info[rates[i].idx].max_4ms_framelen; + if (rates[i].flags & IEEE80211_TX_RC_SHORT_GI) + modeidx = MCS_HT40_SGI; + else if (rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) + modeidx = MCS_HT40; + else + modeidx = MCS_DEFAULT; + + frmlen = ath_max_4ms_framelen[modeidx][rates[i].idx]; max_4ms_framelen = min(max_4ms_framelen, frmlen); } } @@ -523,12 +553,11 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf, static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid, struct ath_buf *bf, u16 frmlen) { - const struct ath_rate_table *rt = sc->cur_rate_table; struct sk_buff *skb = bf->bf_mpdu; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); u32 nsymbits, nsymbols; u16 minlen; - u8 rc, flags, rix; + u8 flags, rix; int width, half_gi, ndelim, mindelim; /* Select standard number of delimiters based on frame length alone */ @@ -558,7 +587,6 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid, rix = tx_info->control.rates[0].idx; flags = tx_info->control.rates[0].flags; - rc = rt->info[rix].ratecode; width = (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) ? 1 : 0; half_gi = (flags & IEEE80211_TX_RC_SHORT_GI) ? 1 : 0; @@ -570,7 +598,7 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid, if (nsymbols == 0) nsymbols = 1; - nsymbits = bits_per_symbol[HT_RC_2_MCS(rc)][width]; + nsymbits = bits_per_symbol[rix][width]; minlen = (nsymbols * nsymbits) / BITS_PER_BYTE; if (frmlen < minlen) { @@ -1425,22 +1453,14 @@ static int setup_tx_flags(struct ath_softc *sc, struct sk_buff *skb, static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, struct ath_buf *bf, int width, int half_gi, bool shortPreamble) { - const struct ath_rate_table *rate_table = sc->cur_rate_table; u32 nbits, nsymbits, duration, nsymbols; - u8 rc; int streams, pktlen; pktlen = bf_isaggr(bf) ? bf->bf_al : bf->bf_frmlen; - rc = rate_table->info[rix].ratecode; - - /* for legacy rates, use old function to compute packet duration */ - if (!IS_HT_RATE(rc)) - return ath9k_hw_computetxtime(sc->sc_ah, rate_table, pktlen, - rix, shortPreamble); /* find number of symbols: PLCP + data */ nbits = (pktlen << 3) + OFDM_PLCP_BITS; - nsymbits = bits_per_symbol[HT_RC_2_MCS(rc)][width]; + nsymbits = bits_per_symbol[rix][width]; nsymbols = (nbits + nsymbits - 1) / nsymbits; if (!half_gi) @@ -1449,7 +1469,7 @@ static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, struct ath_buf *bf, duration = SYMBOL_TIME_HALFGI(nsymbols); /* addup duration for legacy/ht training and signal fields */ - streams = HT_RC_2_STREAMS(rc); + streams = HT_RC_2_STREAMS(rix); duration += L_STF + L_LTF + L_SIG + HT_SIG + HT_STF + HT_LTF(streams); return duration; @@ -1458,11 +1478,11 @@ static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, struct ath_buf *bf, static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); - const struct ath_rate_table *rt = sc->cur_rate_table; struct ath9k_11n_rate_series series[4]; struct sk_buff *skb; struct ieee80211_tx_info *tx_info; struct ieee80211_tx_rate *rates; + const struct ieee80211_rate *rate; struct ieee80211_hdr *hdr; int i, flags = 0; u8 rix = 0, ctsrate = 0; @@ -1481,11 +1501,10 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) * checking the BSS's global flag. * But for the rate series, IEEE80211_TX_RC_USE_SHORT_PREAMBLE is used. */ + rate = ieee80211_get_rts_cts_rate(sc->hw, tx_info); + ctsrate = rate->hw_value; if (sc->sc_flags & SC_OP_PREAMBLE_SHORT) - ctsrate = rt->info[tx_info->control.rts_cts_rate_idx].ratecode | - rt->info[tx_info->control.rts_cts_rate_idx].short_preamble; - else - ctsrate = rt->info[tx_info->control.rts_cts_rate_idx].ratecode; + ctsrate |= rate->hw_value_short; /* * ATH9K_TXDESC_RTSENA and ATH9K_TXDESC_CTSENA are mutually exclusive. @@ -1508,6 +1527,9 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) flags &= ~(ATH9K_TXDESC_RTSENA); for (i = 0; i < 4; i++) { + bool is_40, is_sgi, is_sp; + int phy; + if (!rates[i].count || (rates[i].idx < 0)) continue; @@ -1515,12 +1537,6 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) series[i].Tries = rates[i].count; series[i].ChSel = common->tx_chainmask; - if (rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) - series[i].Rate = rt->info[rix].ratecode | - rt->info[rix].short_preamble; - else - series[i].Rate = rt->info[rix].ratecode; - if (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS; if (rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) @@ -1528,10 +1544,36 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) if (rates[i].flags & IEEE80211_TX_RC_SHORT_GI) series[i].RateFlags |= ATH9K_RATESERIES_HALFGI; - series[i].PktDuration = ath_pkt_duration(sc, rix, bf, - (rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) != 0, - (rates[i].flags & IEEE80211_TX_RC_SHORT_GI), - (rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)); + is_sgi = !!(rates[i].flags & IEEE80211_TX_RC_SHORT_GI); + is_40 = !!(rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH); + is_sp = !!(rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE); + + if (rates[i].flags & IEEE80211_TX_RC_MCS) { + /* MCS rates */ + series[i].Rate = rix | 0x80; + series[i].PktDuration = ath_pkt_duration(sc, rix, bf, + is_40, is_sgi, is_sp); + continue; + } + + /* legcay rates */ + if ((tx_info->band == IEEE80211_BAND_2GHZ) && + !(rate->flags & IEEE80211_RATE_ERP_G)) + phy = WLAN_RC_PHY_CCK; + else + phy = WLAN_RC_PHY_OFDM; + + rate = &sc->sbands[tx_info->band].bitrates[rates[i].idx]; + series[i].Rate = rate->hw_value; + if (rate->hw_value_short) { + if (rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) + series[i].Rate |= rate->hw_value_short; + } else { + is_sp = false; + } + + series[i].PktDuration = ath9k_hw_computetxtime(sc->sc_ah, + phy, rate->bitrate * 100, bf->bf_frmlen, rix, is_sp); } /* set dur_update_en for l-sig computation except for PS-Poll frames */ @@ -1920,8 +1962,10 @@ static void ath_tx_rc_status(struct ath_buf *bf, struct ath_desc *ds, } } - for (i = tx_rateindex + 1; i < hw->max_rates; i++) + for (i = tx_rateindex + 1; i < hw->max_rates; i++) { tx_info->status.rates[i].count = 0; + tx_info->status.rates[i].idx = -1; + } tx_info->status.rates[tx_rateindex].count = bf->bf_retries + 1; }