diff options
Diffstat (limited to 'package/mac80211/patches/425-rewrite-rate-api.patch')
| -rw-r--r-- | package/mac80211/patches/425-rewrite-rate-api.patch | 3005 |
1 files changed, 3005 insertions, 0 deletions
diff --git a/package/mac80211/patches/425-rewrite-rate-api.patch b/package/mac80211/patches/425-rewrite-rate-api.patch new file mode 100644 index 0000000000..c0652a0b0d --- /dev/null +++ b/package/mac80211/patches/425-rewrite-rate-api.patch @@ -0,0 +1,3005 @@ +Subject: mac80211/drivers: rewrite the rate control API + +So after the previous changes we were still unhappy with how +convoluted the API is and decided to make things simpler for +everybody. This completely changes the rate control API, now +taking into account 802.11n with MCS rates and more control, +most drivers don't support that though. + +Signed-off-by: Felix Fietkau <nbd@openwrt.org> +Signed-off-by: Johannes Berg <johannes@sipsolutions.net> +--- + drivers/net/wireless/adm8211.c | 21 - + drivers/net/wireless/ath5k/base.c | 34 +- + drivers/net/wireless/ath9k/main.c | 18 - + drivers/net/wireless/ath9k/rc.c | 40 +-- + drivers/net/wireless/ath9k/xmit.c | 28 +- + drivers/net/wireless/b43/dma.c | 4 + drivers/net/wireless/b43/main.c | 2 + drivers/net/wireless/b43/pio.c | 4 + drivers/net/wireless/b43/xmit.c | 60 +++- + drivers/net/wireless/b43/xmit.h | 5 + drivers/net/wireless/b43legacy/dma.c | 46 ++- + drivers/net/wireless/b43legacy/main.c | 2 + drivers/net/wireless/b43legacy/pio.c | 31 ++ + drivers/net/wireless/b43legacy/xmit.c | 26 +- + drivers/net/wireless/b43legacy/xmit.h | 2 + drivers/net/wireless/iwlwifi/iwl-3945-rs.c | 57 +--- + drivers/net/wireless/iwlwifi/iwl-3945.c | 62 ++++- + drivers/net/wireless/iwlwifi/iwl-3945.h | 2 + drivers/net/wireless/iwlwifi/iwl-4965.c | 8 + drivers/net/wireless/iwlwifi/iwl-5000.c | 8 + drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 37 +- + drivers/net/wireless/iwlwifi/iwl-core.c | 19 - + drivers/net/wireless/iwlwifi/iwl3945-base.c | 5 + drivers/net/wireless/libertas_tf/main.c | 4 + drivers/net/wireless/mac80211_hwsim.c | 12 + drivers/net/wireless/p54/p54common.c | 16 - + drivers/net/wireless/rt2x00/rt2x00dev.c | 11 + drivers/net/wireless/rt2x00/rt2x00mac.c | 14 - + drivers/net/wireless/rt2x00/rt2x00queue.c | 11 + drivers/net/wireless/rtl8180_dev.c | 28 +- + drivers/net/wireless/rtl8187_dev.c | 10 + drivers/net/wireless/zd1211rw/zd_mac.c | 28 +- + include/net/mac80211.h | 206 +++++++++------- + net/mac80211/ieee80211_i.h | 8 + net/mac80211/main.c | 54 +++- + net/mac80211/mesh_hwmp.c | 6 + net/mac80211/rate.c | 50 +--- + net/mac80211/rate.h | 5 + net/mac80211/rc80211_minstrel.c | 72 ++--- + net/mac80211/rc80211_pid.h | 1 + net/mac80211/rc80211_pid_algo.c | 26 +- + net/mac80211/rc80211_pid_debugfs.c | 5 + net/mac80211/sta_info.h | 4 + net/mac80211/tx.c | 347 +++++++++++----------------- + net/mac80211/wext.c | 4 + 45 files changed, 781 insertions(+), 662 deletions(-) + +--- a/include/net/mac80211.h ++++ b/include/net/mac80211.h +@@ -222,29 +222,24 @@ struct ieee80211_bss_conf { + * These flags are used with the @flags member of &ieee80211_tx_info. + * + * @IEEE80211_TX_CTL_REQ_TX_STATUS: request TX status callback for this frame. +- * @IEEE80211_TX_CTL_USE_RTS_CTS: use RTS-CTS before sending frame +- * @IEEE80211_TX_CTL_USE_CTS_PROTECT: use CTS protection for the frame (e.g., +- * for combined 802.11g / 802.11b networks) ++ * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence ++ * number to this frame, taking care of not overwriting the fragment ++ * number and increasing the sequence number only when the ++ * IEEE80211_TX_CTL_FIRST_FRAGMENT flags is set. mac80211 will properly ++ * assign sequence numbers to QoS-data frames but cannot do so correctly ++ * for non-QoS-data and management frames because beacons need them from ++ * that counter as well and mac80211 cannot guarantee proper sequencing. ++ * If this flag is set, the driver should instruct the hardware to ++ * assign a sequence number to the frame or assign one itself. Cf. IEEE ++ * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for ++ * beacons always be clear for frames without a sequence number field. + * @IEEE80211_TX_CTL_NO_ACK: tell the low level not to wait for an ack +- * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: TBD + * @IEEE80211_TX_CTL_CLEAR_PS_FILT: clear powersave filter for destination + * station +- * @IEEE80211_TX_CTL_REQUEUE: TBD + * @IEEE80211_TX_CTL_FIRST_FRAGMENT: this is a first fragment of the frame +- * @IEEE80211_TX_CTL_SHORT_PREAMBLE: TBD +- * @IEEE80211_TX_CTL_LONG_RETRY_LIMIT: this frame should be send using the +- * through set_retry_limit configured long retry value + * @IEEE80211_TX_CTL_SEND_AFTER_DTIM: send this frame after DTIM beacon + * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU +- * @IEEE80211_TX_CTL_OFDM_HT: this frame can be sent in HT OFDM rates. number +- * of streams when this flag is on can be extracted from antenna_sel_tx, +- * so if 1 antenna is marked use SISO, 2 antennas marked use MIMO, n +- * antennas marked use MIMO_n. +- * @IEEE80211_TX_CTL_GREEN_FIELD: use green field protection for this frame +- * @IEEE80211_TX_CTL_40_MHZ_WIDTH: send this frame using 40 Mhz channel width +- * @IEEE80211_TX_CTL_DUP_DATA: duplicate data frame on both 20 Mhz channels +- * @IEEE80211_TX_CTL_SHORT_GI: send this frame using short guard interval +- * @IEEE80211_TX_CTL_INJECTED: TBD ++ * @IEEE80211_TX_CTL_INJECTED: Frame was injected, internal to mac80211. + * @IEEE80211_TX_STAT_TX_FILTERED: The frame was not transmitted + * because the destination STA was in powersave mode. + * @IEEE80211_TX_STAT_ACK: Frame was acknowledged +@@ -252,42 +247,41 @@ struct ieee80211_bss_conf { + * is for the whole aggregation. + * @IEEE80211_TX_STAT_AMPDU_NO_BACK: no block ack was returned, + * so consider using block ack request (BAR). +- * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence +- * number to this frame, taking care of not overwriting the fragment +- * number and increasing the sequence number only when the +- * IEEE80211_TX_CTL_FIRST_FRAGMENT flags is set. mac80211 will properly +- * assign sequence numbers to QoS-data frames but cannot do so correctly +- * for non-QoS-data and management frames because beacons need them from +- * that counter as well and mac80211 cannot guarantee proper sequencing. +- * If this flag is set, the driver should instruct the hardware to +- * assign a sequence number to the frame or assign one itself. Cf. IEEE +- * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for +- * beacons always be clear for frames without a sequence number field. ++ * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be ++ * set by rate control algorithms to indicate probe rate, will ++ * be cleared for fragmented frames (except on the last fragment) ++ * @IEEE80211_TX_CTL_REQUEUE: REMOVE THIS + */ + enum mac80211_tx_control_flags { + IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0), +- IEEE80211_TX_CTL_USE_RTS_CTS = BIT(2), +- IEEE80211_TX_CTL_USE_CTS_PROTECT = BIT(3), +- IEEE80211_TX_CTL_NO_ACK = BIT(4), +- IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(5), +- IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(6), +- IEEE80211_TX_CTL_REQUEUE = BIT(7), +- IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(8), +- IEEE80211_TX_CTL_SHORT_PREAMBLE = BIT(9), +- IEEE80211_TX_CTL_LONG_RETRY_LIMIT = BIT(10), +- IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(12), +- IEEE80211_TX_CTL_AMPDU = BIT(13), +- IEEE80211_TX_CTL_OFDM_HT = BIT(14), +- IEEE80211_TX_CTL_GREEN_FIELD = BIT(15), +- IEEE80211_TX_CTL_40_MHZ_WIDTH = BIT(16), +- IEEE80211_TX_CTL_DUP_DATA = BIT(17), +- IEEE80211_TX_CTL_SHORT_GI = BIT(18), +- IEEE80211_TX_CTL_INJECTED = BIT(19), +- IEEE80211_TX_STAT_TX_FILTERED = BIT(20), +- IEEE80211_TX_STAT_ACK = BIT(21), +- IEEE80211_TX_STAT_AMPDU = BIT(22), +- IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(23), +- IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(24), ++ IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), ++ IEEE80211_TX_CTL_NO_ACK = BIT(2), ++ IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(3), ++ IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(4), ++ IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(5), ++ IEEE80211_TX_CTL_AMPDU = BIT(6), ++ IEEE80211_TX_CTL_INJECTED = BIT(7), ++ IEEE80211_TX_STAT_TX_FILTERED = BIT(8), ++ IEEE80211_TX_STAT_ACK = BIT(9), ++ IEEE80211_TX_STAT_AMPDU = BIT(10), ++ IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(11), ++ IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(12), ++ ++ /* XXX: remove this */ ++ IEEE80211_TX_CTL_REQUEUE = BIT(13), ++}; ++ ++enum mac80211_rate_control_flags { ++ IEEE80211_TX_RC_USE_RTS_CTS = BIT(0), ++ IEEE80211_TX_RC_USE_CTS_PROTECT = BIT(1), ++ IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(2), ++ ++ /* rate index is an MCS rate number instead of an index */ ++ IEEE80211_TX_RC_MCS = BIT(3), ++ IEEE80211_TX_RC_GREEN_FIELD = BIT(4), ++ IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(5), ++ IEEE80211_TX_RC_DUP_DATA = BIT(6), ++ IEEE80211_TX_RC_SHORT_GI = BIT(7), + }; + + +@@ -296,18 +290,26 @@ enum mac80211_tx_control_flags { + #define IEEE80211_TX_INFO_DRIVER_DATA_PTRS \ + (IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *)) + +-/* maximum number of alternate rate retry stages */ +-#define IEEE80211_TX_MAX_ALTRATE 3 ++/* maximum number of rate stages */ ++#define IEEE80211_TX_MAX_RATES 4 + + /** +- * struct ieee80211_tx_altrate - alternate rate selection/status ++ * struct ieee80211_tx_rate - rate selection/status + * +- * @rate_idx: rate index to attempt to send with ++ * @idx: rate index to attempt to send with ++ * @flags: rate control flags (&enum mac80211_rate_control_flags) + * @limit: number of retries before fallback ++ * ++ * A value of -1 for @idx indicates an invalid rate and, if used ++ * in an array of retry rates, that no more rates should be tried. ++ * ++ * When used for transmit status reporting, the driver should ++ * always report the rate along with the flags it used. + */ +-struct ieee80211_tx_altrate { +- s8 rate_idx; +- u8 limit; ++struct ieee80211_tx_rate { ++ s8 idx; ++ u8 count; ++ u8 flags; + }; + + /** +@@ -322,15 +324,12 @@ struct ieee80211_tx_altrate { + * it may be NULL. + * + * @flags: transmit info flags, defined above +- * @band: TBD +- * @tx_rate_idx: TBD ++ * @band: the band to transmit on (use for checking for races) + * @antenna_sel_tx: antenna to use, 0 for automatic diversity + * @control: union for control data + * @status: union for status data + * @driver_data: array of driver_data pointers + * @retry_count: number of retries +- * @excessive_retries: set to 1 if the frame was retried many times +- * but not acknowledged + * @ampdu_ack_len: number of aggregated frames. + * relevant only if IEEE80211_TX_STATUS_AMPDU was set. + * @ampdu_ack_map: block ack bit map for the aggregation. +@@ -341,28 +340,28 @@ struct ieee80211_tx_info { + /* common information */ + u32 flags; + u8 band; +- s8 tx_rate_idx; ++ + u8 antenna_sel_tx; + +- /* 1 byte hole */ ++ /* 2 byte hole */ + + union { + struct { ++ union { ++ struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES]; ++ /* we need the jiffies only before rate control */ ++ unsigned long jiffies; ++ }; ++ s8 rts_cts_rate_idx; + /* NB: vif can be NULL for injected frames */ + struct ieee80211_vif *vif; + struct ieee80211_key_conf *hw_key; + struct ieee80211_sta *sta; +- unsigned long jiffies; +- s8 rts_cts_rate_idx; +- u8 retry_limit; +- struct ieee80211_tx_altrate retries[IEEE80211_TX_MAX_ALTRATE]; + } control; + struct { ++ struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES]; + u64 ampdu_ack_map; + int ack_signal; +- struct ieee80211_tx_altrate retries[IEEE80211_TX_MAX_ALTRATE + 1]; +- u8 retry_count; +- bool excessive_retries; + u8 ampdu_ack_len; + } status; + void *driver_data[IEEE80211_TX_INFO_DRIVER_DATA_PTRS]; +@@ -374,6 +373,22 @@ static inline struct ieee80211_tx_info * + return (struct ieee80211_tx_info *)skb->cb; + } + ++static inline void ++ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) ++{ ++ int i; ++ ++ BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != ++ offsetof(struct ieee80211_tx_info, control.rates)); ++ /* clear the rate counts */ ++ for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) ++ info->status.rates[i].count = 0; ++ ++ memset(&info->status.ampdu_ack_map, 0, ++ sizeof(struct ieee80211_tx_info) - ++ offsetof(struct ieee80211_tx_info, status.ampdu_ack_map)); ++} ++ + + /** + * enum mac80211_rx_flags - receive flags +@@ -875,8 +890,8 @@ enum ieee80211_hw_flags { + * @sta_data_size: size (in bytes) of the drv_priv data area + * within &struct ieee80211_sta. + * +- * @max_altrates: maximum number of alternate rate retry stages +- * @max_altrate_tries: maximum number of tries for each stage ++ * @max_rates: maximum number of alternate rate retry stages ++ * @max_rate_tries: maximum number of tries for each stage + */ + struct ieee80211_hw { + struct ieee80211_conf conf; +@@ -893,8 +908,8 @@ struct ieee80211_hw { + u16 ampdu_queues; + u16 max_listen_interval; + s8 max_signal; +- u8 max_altrates; +- u8 max_altrate_tries; ++ u8 max_rates; ++ u8 max_rate_tries; + }; + + /** +@@ -933,9 +948,9 @@ static inline struct ieee80211_rate * + ieee80211_get_tx_rate(const struct ieee80211_hw *hw, + const struct ieee80211_tx_info *c) + { +- if (WARN_ON(c->tx_rate_idx < 0)) ++ if (WARN_ON(c->control.rates[0].idx < 0)) + return NULL; +- return &hw->wiphy->bands[c->band]->bitrates[c->tx_rate_idx]; ++ return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[0].idx]; + } + + static inline struct ieee80211_rate * +@@ -951,9 +966,9 @@ static inline struct ieee80211_rate * + ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw, + const struct ieee80211_tx_info *c, int idx) + { +- if (c->control.retries[idx].rate_idx < 0) ++ if (c->control.rates[idx + 1].idx < 0) + return NULL; +- return &hw->wiphy->bands[c->band]->bitrates[c->control.retries[idx].rate_idx]; ++ return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[idx + 1].idx]; + } + + /** +@@ -1847,17 +1862,28 @@ struct ieee80211_sta *ieee80211_find_sta + + + /* Rate control API */ ++ + /** +- * struct rate_selection - rate information for/from rate control algorithms ++ * struct ieee80211_tx_rate_control - rate control information for/from RC algo + * +- * @rate_idx: selected transmission rate index +- * @nonerp_idx: Non-ERP rate to use instead if ERP cannot be used +- * @probe_idx: rate for probing (or -1) +- * @max_rate_idx: maximum rate index that can be used, this is +- * input to the algorithm and will be enforced +- */ +-struct rate_selection { +- s8 rate_idx, nonerp_idx, probe_idx, max_rate_idx; ++ * @sband: The band this frame is being transmitted on. ++ * @bss_conf: the current BSS configuration ++ * @reported_rate: The rate control algorithm can fill this in to indicate ++ * which rate should be reported to userspace as the current rate and ++ * used for rate calculations in the mesh network. ++ * @rts: whether RTS will be used for this frame because it is longer than the ++ * RTS threshold ++ * @short_preamble: whether mac80211 will request short-preamble transmission ++ * if the selected rate supports it ++ * @max_rate_idx: user-requested maximum rate (not MCS for now) ++ */ ++struct ieee80211_tx_rate_control { ++ struct ieee80211_supported_band *sband; ++ struct ieee80211_bss_conf *bss_conf; ++ struct sk_buff *skb; ++ struct ieee80211_tx_rate reported_rate; ++ bool rts, short_preamble; ++ u8 max_rate_idx; + }; + + struct rate_control_ops { +@@ -1876,10 +1902,8 @@ struct rate_control_ops { + void (*tx_status)(void *priv, struct ieee80211_supported_band *sband, + struct ieee80211_sta *sta, void *priv_sta, + struct sk_buff *skb); +- void (*get_rate)(void *priv, struct ieee80211_supported_band *sband, +- struct ieee80211_sta *sta, void *priv_sta, +- struct sk_buff *skb, +- struct rate_selection *sel); ++ void (*get_rate)(void *priv, struct ieee80211_sta *sta, void *priv_sta, ++ struct ieee80211_tx_rate_control *txrc); + + void (*add_sta_debugfs)(void *priv, void *priv_sta, + struct dentry *dir); +--- a/net/mac80211/main.c ++++ b/net/mac80211/main.c +@@ -41,6 +41,8 @@ + */ + struct ieee80211_tx_status_rtap_hdr { + struct ieee80211_radiotap_header hdr; ++ u8 rate; ++ u8 padding_for_rate; + __le16 tx_flags; + u8 data_retries; + } __attribute__ ((packed)); +@@ -463,13 +465,28 @@ void ieee80211_tx_status(struct ieee8021 + struct ieee80211_sub_if_data *sdata; + struct net_device *prev_dev = NULL; + struct sta_info *sta; ++ int retry_count = -1, i; ++ ++ for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { ++ /* the HW cannot have attempted that rate */ ++ if (i >= hw->max_rates) { ++ info->status.rates[i].idx = -1; ++ info->status.rates[i].count = 0; ++ } ++ ++ retry_count += info->status.rates[i].count; ++ } ++ if (retry_count < 0) ++ retry_count = 0; + + rcu_read_lock(); + ++ sband = local->hw.wiphy->bands[info->band]; ++ + sta = sta_info_get(local, hdr->addr1); + + if (sta) { +- if (info->status.excessive_retries && ++ if (!(info->flags & IEEE80211_TX_STAT_ACK) && + test_sta_flags(sta, WLAN_STA_PS)) { + /* + * The STA is in power save mode, so assume +@@ -500,12 +517,11 @@ void ieee80211_tx_status(struct ieee8021 + rcu_read_unlock(); + return; + } else { +- if (info->status.excessive_retries) ++ if (!(info->flags & IEEE80211_TX_STAT_ACK)) + sta->tx_retry_failed++; +- sta->tx_retry_count += info->status.retry_count; ++ sta->tx_retry_count += retry_count; + } + +- sband = local->hw.wiphy->bands[info->band]; + rate_control_tx_status(local, sband, sta, skb); + } + +@@ -526,9 +542,9 @@ void ieee80211_tx_status(struct ieee8021 + local->dot11TransmittedFrameCount++; + if (is_multicast_ether_addr(hdr->addr1)) + local->dot11MulticastTransmittedFrameCount++; +- if (info->status.retry_count > 0) ++ if (retry_count > 0) + local->dot11RetryCount++; +- if (info->status.retry_count > 1) ++ if (retry_count > 1) + local->dot11MultipleRetryCount++; + } + +@@ -572,19 +588,30 @@ void ieee80211_tx_status(struct ieee8021 + rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); + rthdr->hdr.it_present = + cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | +- (1 << IEEE80211_RADIOTAP_DATA_RETRIES)); ++ (1 << IEEE80211_RADIOTAP_DATA_RETRIES) | ++ (1 << IEEE80211_RADIOTAP_RATE)); + + if (!(info->flags & IEEE80211_TX_STAT_ACK) && + !is_multicast_ether_addr(hdr->addr1)) + rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); + +- if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) && +- (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) ++ /* ++ * XXX: Once radiotap gets the bitmap reset thing the vendor ++ * extensions proposal contains, we can actually report ++ * the whole set of tries we did. ++ */ ++ if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || ++ (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) + rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); +- else if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ++ else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) + rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); ++ if (info->status.rates[0].idx >= 0 && ++ !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) ++ rthdr->rate = sband->bitrates[ ++ info->status.rates[0].idx].bitrate / 5; + +- rthdr->data_retries = info->status.retry_count; ++ /* for now report the total retry_count */ ++ rthdr->data_retries = retry_count; + + /* XXX: is this sufficient for BPF? */ + skb_set_mac_header(skb, 0); +@@ -669,8 +696,9 @@ struct ieee80211_hw *ieee80211_alloc_hw( + BUG_ON(!ops->configure_filter); + local->ops = ops; + +- local->hw.queues = 1; /* default */ +- ++ /* set up some defaults */ ++ local->hw.queues = 1; ++ local->hw.max_rates = 1; + local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; + local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; + local->hw.conf.long_frame_max_tx_count = 4; +--- a/net/mac80211/tx.c ++++ b/net/mac80211/tx.c +@@ -46,13 +46,20 @@ static __le16 ieee80211_duration(struct + struct ieee80211_local *local = tx->local; + struct ieee80211_supported_band *sband; + struct ieee80211_hdr *hdr; ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); ++ ++ /* assume HW handles this */ ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS) ++ return 0; ++ ++ /* uh huh? */ ++ if (WARN_ON(info->control.rates[0].idx < 0)) ++ return 0; + + sband = local->hw.wiphy->bands[tx->channel->band]; +- txrate = &sband->bitrates[tx->rate_idx]; ++ txrate = &sband->bitrates[info->control.rates[0].idx]; + +- erp = 0; +- if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) +- erp = txrate->flags & IEEE80211_RATE_ERP_G; ++ erp = txrate->flags & IEEE80211_RATE_ERP_G; + + /* + * data and mgmt (except PS Poll): +@@ -439,140 +446,123 @@ ieee80211_tx_h_select_key(struct ieee802 + static ieee80211_tx_result debug_noinline + ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) + { +- struct rate_selection rsel; +- struct ieee80211_supported_band *sband; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); ++ struct ieee80211_hdr *hdr = (void *)tx->skb->data; ++ struct ieee80211_supported_band *sband; ++ struct ieee80211_rate *rate; ++ int i, len; ++ bool inval = false, rts = false, short_preamble = false; ++ struct ieee80211_tx_rate_control txrc; + +- sband = tx->local->hw.wiphy->bands[tx->channel->band]; ++ memset(&txrc, 0, sizeof(txrc)); + +- if (likely(tx->rate_idx < 0)) { +- rate_control_get_rate(tx->sdata, sband, tx->sta, +- tx->skb, &rsel); +- if (tx->sta) +- tx->sta->last_txrate_idx = rsel.rate_idx; +- tx->rate_idx = rsel.rate_idx; +- if (unlikely(rsel.probe_idx >= 0)) { +- info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; +- tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG; +- info->control.retries[0].rate_idx = tx->rate_idx; +- info->control.retries[0].limit = tx->local->hw.max_altrate_tries; +- tx->rate_idx = rsel.probe_idx; +- } else if (info->control.retries[0].limit == 0) +- info->control.retries[0].rate_idx = -1; ++ sband = tx->local->hw.wiphy->bands[tx->channel->band]; + +- if (unlikely(tx->rate_idx < 0)) +- return TX_DROP; +- } else +- info->control.retries[0].rate_idx = -1; ++ len = min_t(int, tx->skb->len + FCS_LEN, ++ tx->local->fragmentation_threshold); + +- if (tx->sdata->vif.bss_conf.use_cts_prot && +- (tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) { +- tx->last_frag_rate_idx = tx->rate_idx; +- if (rsel.probe_idx >= 0) +- tx->flags &= ~IEEE80211_TX_PROBE_LAST_FRAG; +- else +- tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG; +- tx->rate_idx = rsel.nonerp_idx; +- info->tx_rate_idx = rsel.nonerp_idx; +- info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; +- } else { +- tx->last_frag_rate_idx = tx->rate_idx; +- info->tx_rate_idx = tx->rate_idx; ++ /* set up the tx rate control struct we give the RC algo */ ++ txrc.sband = sband; ++ txrc.bss_conf = &tx->sdata->vif.bss_conf; ++ txrc.skb = tx->skb; ++ txrc.reported_rate.idx = -1; ++ txrc.max_rate_idx = tx->sdata->max_ratectrl_rateidx; ++ ++ /* set up RTS protection if desired */ ++ if (tx->local->rts_threshold < IEEE80211_MAX_RTS_THRESHOLD && ++ len > tx->local->rts_threshold) { ++ txrc.rts = rts = true; + } +- info->tx_rate_idx = tx->rate_idx; + +- return TX_CONTINUE; +-} ++ /* XXX: Is this really the right thing to check? */ ++ if (ieee80211_is_data(hdr->frame_control) && ++ tx->sdata->vif.bss_conf.use_short_preamble && ++ (!tx->sta || test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))) ++ txrc.short_preamble = short_preamble = true; + +-static ieee80211_tx_result debug_noinline +-ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) +-{ +- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; +- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); +- struct ieee80211_supported_band *sband; + +- sband = tx->local->hw.wiphy->bands[tx->channel->band]; ++ rate_control_get_rate(tx->sdata, tx->sta, &txrc); ++ ++ if (unlikely(info->control.rates[0].idx < 0)) ++ return TX_DROP; ++ ++ if (txrc.reported_rate.idx < 0) ++ txrc.reported_rate = info->control.rates[0]; + + if (tx->sta) +- info->control.sta = &tx->sta->sta; ++ tx->sta->last_tx_rate = txrc.reported_rate; + +- if (!info->control.retry_limit) { +- if (!is_multicast_ether_addr(hdr->addr1)) { +- int len = min_t(int, tx->skb->len + FCS_LEN, +- tx->local->fragmentation_threshold); +- if (len > tx->local->rts_threshold +- && tx->local->rts_threshold < +- IEEE80211_MAX_RTS_THRESHOLD) { +- info->flags |= IEEE80211_TX_CTL_USE_RTS_CTS; +- info->flags |= +- IEEE80211_TX_CTL_LONG_RETRY_LIMIT; +- info->control.retry_limit = +- tx->local->hw.conf.long_frame_max_tx_count - 1; +- } else { +- info->control.retry_limit = +- tx->local->hw.conf.short_frame_max_tx_count - 1; +- } +- } else { +- info->control.retry_limit = 1; +- } +- } ++ if (unlikely(!info->control.rates[0].count)) ++ info->control.rates[0].count = 1; + +- if (tx->flags & IEEE80211_TX_FRAGMENTED) { +- /* Do not use multiple retry rates when sending fragmented +- * frames. +- * TODO: The last fragment could still use multiple retry +- * rates. */ +- info->control.retries[0].rate_idx = -1; +- } +- +- /* Use CTS protection for unicast frames sent using extended rates if +- * there are associated non-ERP stations and RTS/CTS is not configured +- * for the frame. */ +- if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) && +- (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_ERP_G) && +- (tx->flags & IEEE80211_TX_UNICAST) && +- tx->sdata->vif.bss_conf.use_cts_prot && +- !(info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)) +- info->flags |= IEEE80211_TX_CTL_USE_CTS_PROTECT; +- +- /* Transmit data frames using short preambles if the driver supports +- * short preambles at the selected rate and short preambles are +- * available on the network at the current point in time. */ +- if (ieee80211_is_data(hdr->frame_control) && +- (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) && +- tx->sdata->vif.bss_conf.use_short_preamble && +- (!tx->sta || test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))) { +- info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; ++ if (is_multicast_ether_addr(hdr->addr1)) { ++ /* ++ * XXX: verify the rate is in the basic rateset ++ */ ++ return TX_CONTINUE; + } + +- if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || +- (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { +- struct ieee80211_rate *rate; +- s8 baserate = -1; +- int idx; ++ for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { ++ /* ++ * make sure there's no valid rate following ++ * an invalid one, just in case drivers don't ++ * take the API seriously to stop at -1. ++ */ ++ if (inval) { ++ info->control.rates[i].idx = -1; ++ continue; ++ } ++ if (info->control.rates[i].idx < 0) { ++ inval = true; ++ continue; ++ } + +- /* Do not use multiple retry rates when using RTS/CTS */ +- info->control.retries[0].rate_idx = -1; ++ /* ++ * For now assume MCS is already set up correctly, this ++ * needs to be fixed. ++ */ ++ if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) { ++ WARN_ON(info->control.rates[i].idx > 76); ++ continue; ++ } + +- /* Use min(data rate, max base rate) as CTS/RTS rate */ +- rate = &sband->bitrates[tx->rate_idx]; ++ /* set up RTS protection if desired */ ++ if (rts) { ++ info->control.rates[i].flags |= ++ IEEE80211_TX_RC_USE_RTS_CTS; ++ rts = true; ++ } + +- for (idx = 0; idx < sband->n_bitrates; idx++) { +- if (sband->bitrates[idx].bitrate > rate->bitrate) +- continue; +- if (tx->sdata->vif.bss_conf.basic_rates & BIT(idx) && +- (baserate < 0 || +- (sband->bitrates[baserate].bitrate +- < sband->bitrates[idx].bitrate))) +- baserate = idx; ++ /* RC is busted */ ++ if (WARN_ON(info->control.rates[i].idx >= ++ sband->n_bitrates)) { ++ info->control.rates[i].idx = -1; ++ continue; + } + +- if (baserate >= 0) +- info->control.rts_cts_rate_idx = baserate; +- else +- info->control.rts_cts_rate_idx = 0; ++ rate = &sband->bitrates[info->control.rates[i].idx]; ++ ++ /* set up short preamble */ ++ if (short_preamble && ++ rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) ++ info->control.rates[i].flags |= ++ IEEE80211_TX_RC_USE_SHORT_PREAMBLE; ++ ++ /* set up G protection */ ++ if (!rts && tx->sdata->vif.bss_conf.use_cts_prot && ++ rate->flags & IEEE80211_RATE_ERP_G) ++ info->control.rates[i].flags |= ++ IEEE80211_TX_RC_USE_CTS_PROTECT; + } + ++ return TX_CONTINUE; ++} ++ ++static ieee80211_tx_result debug_noinline ++ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) ++{ ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); ++ + if (tx->sta) + info->control.sta = &tx->sta->sta; + +@@ -680,6 +670,7 @@ ieee80211_tx_h_fragment(struct ieee80211 + left = payload_len - per_fragm; + for (i = 0; i < num_fragm - 1; i++) { + struct ieee80211_hdr *fhdr; ++ struct ieee80211_tx_info *info; + size_t copylen; + + if (left <= 0) +@@ -694,20 +685,44 @@ ieee80211_tx_h_fragment(struct ieee80211 + IEEE80211_ENCRYPT_TAILROOM); + if (!frag) + goto fail; ++ + /* Make sure that all fragments use the same priority so + * that they end up using the same TX queue */ + frag->priority = first->priority; ++ + skb_reserve(frag, tx->local->tx_headroom + + IEEE80211_ENCRYPT_HEADROOM); ++ ++ /* copy TX information */ ++ info = IEEE80211_SKB_CB(frag); ++ memcpy(info, first->cb, sizeof(frag->cb)); ++ ++ /* copy/fill in 802.11 header */ + fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen); + memcpy(fhdr, first->data, hdrlen); +- if (i == num_fragm - 2) +- fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS); + fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG)); ++ ++ if (i == num_fragm - 2) { ++ /* clear MOREFRAGS bit for the last fragment */ ++ fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS); ++ } else { ++ /* ++ * No multi-rate retries for fragmented frames, that ++ * would completely throw off the NAV at other STAs. ++ */ ++ info->control.rates[1].idx = -1; ++ info->control.rates[2].idx = -1; ++ info->control.rates[3].idx = -1; ++ BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 4); ++ info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; ++ } ++ ++ /* copy data */ + copylen = left > per_fragm ? per_fragm : left; + memcpy(skb_put(frag, copylen), pos, copylen); +- memcpy(frag->cb, first->cb, sizeof(frag->cb)); ++ + skb_copy_queue_mapping(frag, first); ++ + frag->do_not_encrypt = first->do_not_encrypt; + + pos += copylen; +@@ -767,12 +782,10 @@ ieee80211_tx_h_calculate_duration(struct + tx->extra_frag[0]->len); + + for (i = 0; i < tx->num_extra_frag; i++) { +- if (i + 1 < tx->num_extra_frag) { ++ if (i + 1 < tx->num_extra_frag) + next_len = tx->extra_frag[i + 1]->len; +- } else { ++ else + next_len = 0; +- tx->rate_idx = tx->last_frag_rate_idx; +- } + + hdr = (struct ieee80211_hdr *)tx->extra_frag[i]->data; + hdr->duration_id = ieee80211_duration(tx, 0, next_len); +@@ -825,7 +838,6 @@ __ieee80211_parse_tx_radiotap(struct iee + (struct ieee80211_radiotap_header *) skb->data; + struct ieee80211_supported_band *sband; + int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len); +- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + + sband = tx->local->hw.wiphy->bands[tx->channel->band]; + +@@ -839,8 +851,6 @@ __ieee80211_parse_tx_radiotap(struct iee + */ + + while (!ret) { +- int i, target_rate; +- + ret = ieee80211_radiotap_iterator_next(&iterator); + + if (ret) +@@ -854,38 +864,6 @@ __ieee80211_parse_tx_radiotap(struct iee + * get_unaligned((type *)iterator.this_arg) to dereference + * iterator.this_arg for type "type" safely on all arches. + */ +- case IEEE80211_RADIOTAP_RATE: +- /* +- * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps +- * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps +- */ +- target_rate = (*iterator.this_arg) * 5; +- for (i = 0; i < sband->n_bitrates; i++) { +- struct ieee80211_rate *r; +- +- r = &sband->bitrates[i]; +- +- if (r->bitrate == target_rate) { +- tx->rate_idx = i; +- break; +- } +- } +- break; +- +- case IEEE80211_RADIOTAP_ANTENNA: +- /* +- * radiotap uses 0 for 1st ant, mac80211 is 1 for +- * 1st ant +- */ +- info->antenna_sel_tx = (*iterator.this_arg) + 1; +- break; +- +-#if 0 +- case IEEE80211_RADIOTAP_DBM_TX_POWER: +- control->power_level = *iterator.this_arg; +- break; +-#endif +- + case IEEE80211_RADIOTAP_FLAGS: + if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) { + /* +@@ -951,8 +929,6 @@ __ieee80211_tx_prepare(struct ieee80211_ + tx->local = local; + tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev); + tx->channel = local->hw.conf.channel; +- tx->rate_idx = -1; +- tx->last_frag_rate_idx = -1; + /* + * Set this flag (used below to indicate "automatic fragmentation"), + * it will be cleared/left by radiotap as desired. +@@ -1053,23 +1029,11 @@ static int __ieee80211_tx(struct ieee802 + if (!tx->extra_frag[i]) + continue; + info = IEEE80211_SKB_CB(tx->extra_frag[i]); +- info->flags &= ~(IEEE80211_TX_CTL_USE_RTS_CTS | +- IEEE80211_TX_CTL_USE_CTS_PROTECT | +- IEEE80211_TX_CTL_CLEAR_PS_FILT | ++ info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT | + IEEE80211_TX_CTL_FIRST_FRAGMENT); + if (netif_subqueue_stopped(local->mdev, + tx->extra_frag[i])) + return IEEE80211_TX_FRAG_AGAIN; +- if (i == tx->num_extra_frag) { +- info->tx_rate_idx = tx->last_frag_rate_idx; +- +- if (tx->flags & IEEE80211_TX_PROBE_LAST_FRAG) +- info->flags |= +- IEEE80211_TX_CTL_RATE_CTRL_PROBE; +- else +- info->flags &= +- ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; +- } + + ret = local->ops->tx(local_to_hw(local), + tx->extra_frag[i]); +@@ -1206,9 +1170,6 @@ retry: + store->skb = skb; + store->extra_frag = tx.extra_frag; + store->num_extra_frag = tx.num_extra_frag; +- store->last_frag_rate_idx = tx.last_frag_rate_idx; +- store->last_frag_rate_ctrl_probe = +- !!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG); + } + out: + rcu_read_unlock(); +@@ -1767,10 +1728,7 @@ void ieee80211_tx_pending(unsigned long + store = &local->pending_packet[i]; + tx.extra_frag = store->extra_frag; + tx.num_extra_frag = store->num_extra_frag; +- tx.last_frag_rate_idx = store->last_frag_rate_idx; + tx.flags = 0; +- if (store->last_frag_rate_ctrl_probe) +- tx.flags |= IEEE80211_TX_PROBE_LAST_FRAG; + ret = __ieee80211_tx(local, store->skb, &tx); + if (ret) { + if (ret == IEEE80211_TX_FRAG_AGAIN) +@@ -1858,7 +1816,6 @@ struct sk_buff *ieee80211_beacon_get(str + struct ieee80211_sub_if_data *sdata = NULL; + struct ieee80211_if_ap *ap = NULL; + struct ieee80211_if_sta *ifsta = NULL; +- struct rate_selection rsel; + struct beacon_data *beacon; + struct ieee80211_supported_band *sband; + enum ieee80211_band band = local->hw.conf.channel->band; +@@ -1962,32 +1919,22 @@ struct sk_buff *ieee80211_beacon_get(str + skb->do_not_encrypt = 1; + + info->band = band; +- rate_control_get_rate(sdata, sband, NULL, skb, &rsel); +- +- if (unlikely(rsel.rate_idx < 0)) { +- if (net_ratelimit()) { +- printk(KERN_DEBUG "%s: ieee80211_beacon_get: " +- "no rate found\n", +- wiphy_name(local->hw.wiphy)); +- } +- dev_kfree_skb_any(skb); +- skb = NULL; +- goto out; +- } ++ /* ++ * XXX: For now, always use the lowest rate ++ */ ++ info->control.rates[0].idx = 0; ++ info->control.rates[0].count = 1; ++ info->control.rates[1].idx = -1; ++ info->control.rates[2].idx = -1; ++ info->control.rates[3].idx = -1; ++ BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 4); + + info->control.vif = vif; +- info->tx_rate_idx = rsel.rate_idx; + + info->flags |= IEEE80211_TX_CTL_NO_ACK; + info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; + info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ; +- if (sdata->vif.bss_conf.use_short_preamble && +- sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) +- info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; +- +- info->control.retry_limit = 1; +- +-out: ++ out: + rcu_read_unlock(); + return skb; + } +--- a/net/mac80211/ieee80211_i.h ++++ b/net/mac80211/ieee80211_i.h +@@ -142,7 +142,6 @@ typedef unsigned __bitwise__ ieee80211_t + #define IEEE80211_TX_FRAGMENTED BIT(0) + #define IEEE80211_TX_UNICAST BIT(1) + #define IEEE80211_TX_PS_BUFFERED BIT(2) +-#define IEEE80211_TX_PROBE_LAST_FRAG BIT(3) + + struct ieee80211_tx_data { + struct sk_buff *skb; +@@ -153,11 +152,6 @@ struct ieee80211_tx_data { + struct ieee80211_key *key; + + struct ieee80211_channel *channel; +- s8 rate_idx; +- /* use this rate (if set) for last fragment; rate can +- * be set to lower rate for the first fragments, e.g., +- * when using CTS protection with IEEE 802.11g. */ +- s8 last_frag_rate_idx; + + /* Extra fragments (in addition to the first fragment + * in skb) */ +@@ -203,9 +197,7 @@ struct ieee80211_rx_data { + struct ieee80211_tx_stored_packet { + struct sk_buff *skb; + struct sk_buff **extra_frag; +- s8 last_frag_rate_idx; + int num_extra_frag; +- bool last_frag_rate_ctrl_probe; + }; + + struct beacon_data { +--- a/net/mac80211/rate.c ++++ b/net/mac80211/rate.c +@@ -199,48 +199,44 @@ static void rate_control_release(struct + } + + void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, +- struct ieee80211_supported_band *sband, +- struct sta_info *sta, struct sk_buff *skb, +- struct rate_selection *sel) ++ struct sta_info *sta, ++ struct ieee80211_tx_rate_control *txrc) + { + struct rate_control_ref *ref = sdata->local->rate_ctrl; + void *priv_sta = NULL; + struct ieee80211_sta *ista = NULL; ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb); + int i; + +- sel->rate_idx = -1; +- sel->nonerp_idx = -1; +- sel->probe_idx = -1; +- sel->max_rate_idx = sdata->max_ratectrl_rateidx; +- + if (sta) { + ista = &sta->sta; + priv_sta = sta->rate_ctrl_priv; + } + ++ for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { ++ info->control.rates[i].idx = -1; ++ info->control.rates[i].flags = 0; ++ info->control.rates[i].count = 1; ++ } ++ + if (sta && sdata->force_unicast_rateidx > -1) +- sel->rate_idx = sdata->force_unicast_rateidx; ++ info->control.rates[0].idx = sdata->force_unicast_rateidx; + else +- ref->ops->get_rate(ref->priv, sband, ista, priv_sta, skb, sel); ++ ref->ops->get_rate(ref->priv, ista, priv_sta, txrc); + +- if (sdata->max_ratectrl_rateidx > -1 && +- sel->rate_idx > sdata->max_ratectrl_rateidx) +- sel->rate_idx = sdata->max_ratectrl_rateidx; +- +- BUG_ON(sel->rate_idx < 0); +- +- /* Select a non-ERP backup rate. */ +- if (sel->nonerp_idx < 0) { +- for (i = 0; i < sband->n_bitrates; i++) { +- struct ieee80211_rate *rate = &sband->bitrates[i]; +- if (sband->bitrates[sel->rate_idx].bitrate < rate->bitrate) +- break; +- +- if (rate_supported(ista, sband->band, i) && +- !(rate->flags & IEEE80211_RATE_ERP_G)) +- sel->nonerp_idx = i; +- } ++ /* ++ * try to enforce the maximum rate the user wanted ++ */ ++ if (sdata->max_ratectrl_rateidx > -1) ++ for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { ++ if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) ++ continue; ++ info->control.rates[i].idx = ++ min_t(s8, info->control.rates[i].idx, ++ sdata->max_ratectrl_rateidx); + } ++ ++ BUG_ON(info->control.rates[0].idx < 0); + } + + struct rate_control_ref *rate_control_get(struct rate_control_ref *ref) +--- a/net/mac80211/rate.h ++++ b/net/mac80211/rate.h +@@ -31,9 +31,8 @@ struct rate_control_ref { + struct rate_control_ref *rate_control_alloc(const char *name, + struct ieee80211_local *local); + void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, +- struct ieee80211_supported_band *sband, +- struct sta_info *sta, struct sk_buff *skb, +- struct rate_selection *sel); ++ struct sta_info *sta, ++ struct ieee80211_tx_rate_control *txrc); + struct rate_control_ref *rate_control_get(struct rate_control_ref *ref); + void rate_control_put(struct rate_control_ref *ref); + +--- a/net/mac80211/sta_info.h ++++ b/net/mac80211/sta_info.h +@@ -196,7 +196,7 @@ struct sta_ampdu_mlme { + * @tx_packets: number of RX/TX MSDUs + * @tx_bytes: TBD + * @tx_fragments: number of transmitted MPDUs +- * @last_txrate_idx: Index of the last used transmit rate ++ * @last_txrate: description of the last used transmit rate + * @tid_seq: TBD + * @ampdu_mlme: TBD + * @timer_to_tid: identity mapping to ID timers +@@ -267,7 +267,7 @@ struct sta_info { + unsigned long tx_packets; + unsigned long tx_bytes; + unsigned long tx_fragments; +- unsigned int last_txrate_idx; ++ struct ieee80211_tx_rate last_tx_rate; + u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; + + /* +--- a/net/mac80211/wext.c ++++ b/net/mac80211/wext.c +@@ -636,8 +636,8 @@ static int ieee80211_ioctl_giwrate(struc + + sta = sta_info_get(local, sdata->u.sta.bssid); + +- if (sta && sta->last_txrate_idx < sband->n_bitrates) +- rate->value = sband->bitrates[sta->last_txrate_idx].bitrate; ++ if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) ++ rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate; + else + rate->value = 0; + +--- a/net/mac80211/mesh_hwmp.c ++++ b/net/mac80211/mesh_hwmp.c +@@ -218,12 +218,16 @@ static u32 airtime_link_metric_get(struc + + if (sta->fail_avg >= 100) + return MAX_METRIC; ++ ++ if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS) ++ return MAX_METRIC; ++ + err = (sta->fail_avg << ARITH_SHIFT) / 100; + + /* bitrate is in units of 100 Kbps, while we need rate in units of + * 1Mbps. This will be corrected on tx_time computation. + */ +- rate = sband->bitrates[sta->last_txrate_idx].bitrate; ++ rate = sband->bitrates[sta->last_tx_rate.idx].bitrate; + tx_time = (device_constant + 10 * test_frame_len / rate); + estimated_retx = ((1 << (2 * ARITH_SHIFT)) / (s_unit - err)); + result = (tx_time * estimated_retx) >> (2 * ARITH_SHIFT) ; +--- a/net/mac80211/rc80211_pid_algo.c ++++ b/net/mac80211/rc80211_pid_algo.c +@@ -241,7 +241,7 @@ static void rate_control_pid_tx_status(v + + /* Ignore all frames that were sent with a different rate than the rate + * we currently advise mac80211 to use. */ +- if (info->tx_rate_idx != spinfo->txrate_idx) ++ if (info->status.rates[0].idx != spinfo->txrate_idx) + return; + + spinfo->tx_num_xmit++; +@@ -253,10 +253,10 @@ static void rate_control_pid_tx_status(v + /* We count frames that totally failed to be transmitted as two bad + * frames, those that made it out but had some retries as one good and + * one bad frame. */ +- if (info->status.excessive_retries) { ++ if (!(info->flags & IEEE80211_TX_STAT_ACK)) { + spinfo->tx_num_failed += 2; + spinfo->tx_num_xmit++; +- } else if (info->status.retry_count) { ++ } else if (info->status.rates[0].count) { + spinfo->tx_num_failed++; + spinfo->tx_num_xmit++; + } +@@ -270,23 +270,31 @@ static void rate_control_pid_tx_status(v + } + + static void +-rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband, +- struct ieee80211_sta *sta, void *priv_sta, +- struct sk_buff *skb, +- struct rate_selection *sel) ++rate_control_pid_get_rate(void *priv, struct ieee80211_sta *sta, ++ void *priv_sta, ++ struct ieee80211_tx_rate_control *txrc) + { ++ struct sk_buff *skb = txrc->skb; ++ struct ieee80211_supported_band *sband = txrc->sband; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct rc_pid_sta_info *spinfo = priv_sta; + int rateidx; + u16 fc; + ++ /* XXX: Should use the user-configured values */ ++ if (txrc->rts) ++ info->control.rates[0].count = 4; /* long retry count */ ++ else ++ info->control.rates[0].count = 7; /* short retry count */ ++ + /* Send management frames and broadcast/multicast data using lowest + * rate. */ + fc = le16_to_cpu(hdr->frame_control); + if (!sta || !spinfo || + (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || + is_multicast_ether_addr(hdr->addr1)) { +- sel->rate_idx = rate_lowest_index(sband, sta); ++ info->control.rates[0].idx = rate_lowest_index(sband, sta); + return; + } + +@@ -295,7 +303,7 @@ rate_control_pid_get_rate(void *priv, st + if (rateidx >= sband->n_bitrates) + rateidx = sband->n_bitrates - 1; + +- sel->rate_idx = rateidx; ++ info->control.rates[0].idx = rateidx; + + #ifdef CONFIG_MAC80211_DEBUGFS + rate_control_pid_event_tx_rate(&spinfo->events, +--- a/net/mac80211/rc80211_minstrel.c ++++ b/net/mac80211/rc80211_minstrel.c +@@ -169,30 +169,20 @@ minstrel_tx_status(void *priv, struct ie + { + struct minstrel_sta_info *mi = priv_sta; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); +- struct ieee80211_tx_altrate *ar = info->status.retries; +- struct minstrel_priv *mp = priv; +- int i, ndx, tries; +- int success = 0; ++ struct ieee80211_tx_rate *ar = info->status.rates; ++ int i, ndx; ++ int success; + +- if (!info->status.excessive_retries) +- success = 1; ++ success = !!(info->flags & IEEE80211_TX_STAT_ACK); + +- if (!mp->has_mrr || (ar[0].rate_idx < 0)) { +- ndx = rix_to_ndx(mi, info->tx_rate_idx); +- tries = info->status.retry_count + 1; +- mi->r[ndx].success += success; +- mi->r[ndx].attempts += tries; +- return; +- } +- +- for (i = 0; i < 4; i++) { +- if (ar[i].rate_idx < 0) ++ for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { ++ if (ar[i].idx < 0) + break; + +- ndx = rix_to_ndx(mi, ar[i].rate_idx); +- mi->r[ndx].attempts += ar[i].limit + 1; ++ ndx = rix_to_ndx(mi, ar[i].idx); ++ mi->r[ndx].attempts += ar[i].count; + +- if ((i != 3) && (ar[i + 1].rate_idx < 0)) ++ if ((i != IEEE80211_TX_MAX_RATES - 1) && (ar[i + 1].idx < 0)) + mi->r[ndx].success += success; + } + +@@ -210,9 +200,9 @@ minstrel_get_retry_count(struct minstrel + { + unsigned int retry = mr->adjusted_retry_count; + +- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) + retry = max(2U, min(mr->retry_count_rtscts, retry)); +- else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) ++ else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) + retry = max(2U, min(mr->retry_count_cts, retry)); + return retry; + } +@@ -234,14 +224,15 @@ minstrel_get_next_sample(struct minstrel + } + + void +-minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, +- struct ieee80211_sta *sta, void *priv_sta, +- struct sk_buff *skb, struct rate_selection *sel) ++minstrel_get_rate(void *priv, struct ieee80211_sta *sta, ++ void *priv_sta, struct ieee80211_tx_rate_control *txrc) + { ++ struct sk_buff *skb = txrc->skb; ++ struct ieee80211_supported_band *sband = txrc->sband; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct minstrel_sta_info *mi = priv_sta; + struct minstrel_priv *mp = priv; +- struct ieee80211_tx_altrate *ar = info->control.retries; ++ struct ieee80211_tx_rate *ar = info->control.rates; + unsigned int ndx, sample_ndx = 0; + bool mrr; + bool sample_slower = false; +@@ -251,16 +242,12 @@ minstrel_get_rate(void *priv, struct iee + int sample_rate; + + if (!sta || !mi || use_low_rate(skb)) { +- sel->rate_idx = rate_lowest_index(sband, sta); ++ ar[0].idx = rate_lowest_index(sband, sta); ++ ar[0].count = mp->max_retry; + return; + } + +- mrr = mp->has_mrr; +- +- /* mac80211 does not allow mrr for RTS/CTS */ +- if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || +- (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) +- mrr = false; ++ mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot; + + if (time_after(jiffies, mi->stats_update + (mp->update_interval * + HZ) / 1000)) +@@ -315,13 +302,12 @@ minstrel_get_rate(void *priv, struct iee + mi->sample_deferred++; + } + } +- sel->rate_idx = mi->r[ndx].rix; +- info->control.retry_limit = minstrel_get_retry_count(&mi->r[ndx], info); ++ ar[0].idx = mi->r[ndx].rix; ++ ar[0].count = minstrel_get_retry_count(&mi->r[ndx], info); + + if (!mrr) { +- ar[0].rate_idx = mi->lowest_rix; +- ar[0].limit = mp->max_retry; +- ar[1].rate_idx = -1; ++ ar[1].idx = mi->lowest_rix; ++ ar[1].count = mp->max_retry; + return; + } + +@@ -336,9 +322,9 @@ minstrel_get_rate(void *priv, struct iee + } + mrr_ndx[1] = mi->max_prob_rate; + mrr_ndx[2] = 0; +- for (i = 0; i < 3; i++) { +- ar[i].rate_idx = mi->r[mrr_ndx[i]].rix; +- ar[i].limit = mi->r[mrr_ndx[i]].adjusted_retry_count; ++ for (i = 1; i < 4; i++) { ++ ar[i].idx = mi->r[mrr_ndx[i - 1]].rix; ++ ar[i].count = mi->r[mrr_ndx[i - 1]].adjusted_retry_count; + } + } + +@@ -532,13 +518,13 @@ minstrel_alloc(struct ieee80211_hw *hw, + /* maximum time that the hw is allowed to stay in one MRR segment */ + mp->segment_size = 6000; + +- if (hw->max_altrate_tries > 0) +- mp->max_retry = hw->max_altrate_tries; ++ if (hw->max_rate_tries > 0) ++ mp->max_retry = hw->max_rate_tries; + else + /* safe default, does not necessarily have to match hw properties */ + mp->max_retry = 7; + +- if (hw->max_altrates >= 3) ++ if (hw->max_rates >= 4) + mp->has_mrr = true; + + mp->hw = hw; +--- a/net/mac80211/rc80211_pid_debugfs.c ++++ b/net/mac80211/rc80211_pid_debugfs.c +@@ -43,6 +43,7 @@ void rate_control_pid_event_tx_status(st + { + union rc_pid_event_data evd; + ++ evd.flags = stat->flags; + memcpy(&evd.tx_status, stat, sizeof(struct ieee80211_tx_info)); + rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_STATUS, &evd); + } +@@ -167,8 +168,8 @@ static ssize_t rate_control_pid_events_r + switch (ev->type) { + case RC_PID_EVENT_TYPE_TX_STATUS: + p += snprintf(pb + p, length - p, "tx_status %u %u", +- ev->data.tx_status.status.excessive_retries, +- ev->data.tx_status.status.retry_count); ++ !(ev->data.flags & IEEE80211_TX_STAT_ACK), ++ ev->data.tx_status.status.rates[0].idx); + break; + case RC_PID_EVENT_TYPE_RATE_CHANGE: + p += snprintf(pb + p, length - p, "rate_change %d %d", +--- a/net/mac80211/rc80211_pid.h ++++ b/net/mac80211/rc80211_pid.h +@@ -61,6 +61,7 @@ enum rc_pid_event_type { + union rc_pid_event_data { + /* RC_PID_EVENT_TX_STATUS */ + struct { ++ u32 flags; + struct ieee80211_tx_info tx_status; + }; + /* RC_PID_EVENT_TYPE_RATE_CHANGE */ +--- a/drivers/net/wireless/zd1211rw/zd_mac.c ++++ b/drivers/net/wireless/zd1211rw/zd_mac.c +@@ -296,15 +296,14 @@ static void zd_op_stop(struct ieee80211_ + * If no status information has been requested, the skb is freed. + */ + static void tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, +- u32 flags, int ackssi, bool success) ++ int ackssi, bool success) + { + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + +- memset(&info->status, 0, sizeof(info->status)); ++ ieee80211_tx_info_clear_status(info); + +- if (!success) +- info->status.excessive_retries = 1; +- info->flags |= flags; ++ if (success) ++ info->flags |= IEEE80211_TX_STAT_ACK; + info->status.ack_signal = ackssi; + ieee80211_tx_status_irqsafe(hw, skb); + } +@@ -326,7 +325,7 @@ void zd_mac_tx_failed(struct ieee80211_h + if (skb == NULL) + return; + +- tx_status(hw, skb, 0, 0, 0); ++ tx_status(hw, skb, 0, 0); + } + + /** +@@ -347,7 +346,7 @@ void zd_mac_tx_to_dev(struct sk_buff *sk + skb_pull(skb, sizeof(struct zd_ctrlset)); + if (unlikely(error || + (info->flags & IEEE80211_TX_CTL_NO_ACK))) { +- tx_status(hw, skb, 0, 0, !error); ++ tx_status(hw, skb, 0, !error); + } else { + struct sk_buff_head *q = + &zd_hw_mac(hw)->ack_wait_queue; +@@ -406,7 +405,8 @@ static int zd_calc_tx_length_us(u8 *serv + } + + static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, +- struct ieee80211_hdr *header, u32 flags) ++ struct ieee80211_hdr *header, ++ struct ieee80211_tx_info *info) + { + /* + * CONTROL TODO: +@@ -417,7 +417,7 @@ static void cs_set_control(struct zd_mac + cs->control = 0; + + /* First fragment */ +- if (flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) ++ if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) + cs->control |= ZD_CS_NEED_RANDOM_BACKOFF; + + /* Multicast */ +@@ -428,10 +428,10 @@ static void cs_set_control(struct zd_mac + if (ieee80211_is_pspoll(header->frame_control)) + cs->control |= ZD_CS_PS_POLL_FRAME; + +- if (flags & IEEE80211_TX_CTL_USE_RTS_CTS) ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) + cs->control |= ZD_CS_RTS; + +- if (flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) + cs->control |= ZD_CS_SELF_CTS; + + /* FIXME: Management frame? */ +@@ -517,12 +517,12 @@ static int fill_ctrlset(struct zd_mac *m + txrate = ieee80211_get_tx_rate(mac->hw, info); + + cs->modulation = txrate->hw_value; +- if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) + cs->modulation = txrate->hw_value_short; + + cs->tx_length = cpu_to_le16(frag_len); + +- cs_set_control(mac, cs, hdr, info->flags); ++ cs_set_control(mac, cs, hdr, info); + + packet_length = frag_len + sizeof(struct zd_ctrlset) + 10; + ZD_ASSERT(packet_length <= 0xffff); +@@ -618,7 +618,7 @@ static int filter_ack(struct ieee80211_h + if (likely(!compare_ether_addr(tx_hdr->addr2, rx_hdr->addr1))) + { + __skb_unlink(skb, q); +- tx_status(hw, skb, IEEE80211_TX_STAT_ACK, stats->signal, 1); ++ tx_status(hw, skb, stats->signal, 1); + goto out; + } + } +--- a/drivers/net/wireless/rt2x00/rt2x00dev.c ++++ b/drivers/net/wireless/rt2x00/rt2x00dev.c +@@ -499,6 +499,7 @@ void rt2x00lib_txdone(struct queue_entry + struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); + enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); ++ bool rts; + + /* + * Unmap the skb. +@@ -528,14 +529,14 @@ void rt2x00lib_txdone(struct queue_entry + rt2x00dev->link.qual.tx_failed += + test_bit(TXDONE_FAILURE, &txdesc->flags); + ++ rts = !!(tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS); ++ + /* + * Initialize TX status + */ +- memset(&tx_info->status, 0, sizeof(tx_info->status)); ++ ieee80211_tx_info_clear_status(tx_info); + tx_info->status.ack_signal = 0; +- tx_info->status.excessive_retries = +- test_bit(TXDONE_EXCESSIVE_RETRY, &txdesc->flags); +- tx_info->status.retry_count = txdesc->retry; ++ tx_info->status.rates[0].count = txdesc->retry + 1; + + if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { + if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) +@@ -544,7 +545,7 @@ void rt2x00lib_txdone(struct queue_entry + rt2x00dev->low_level_stats.dot11ACKFailureCount++; + } + +- if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { ++ if (rts) { + if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) + rt2x00dev->low_level_stats.dot11RTSSuccessCount++; + else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) +--- a/drivers/net/wireless/rt2x00/rt2x00mac.c ++++ b/drivers/net/wireless/rt2x00/rt2x00mac.c +@@ -39,7 +39,7 @@ static int rt2x00mac_tx_rts_cts(struct r + unsigned int data_length; + int retval = 0; + +- if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) ++ if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) + data_length = sizeof(struct ieee80211_cts); + else + data_length = sizeof(struct ieee80211_rts); +@@ -64,11 +64,11 @@ static int rt2x00mac_tx_rts_cts(struct r + */ + memcpy(skb->cb, frag_skb->cb, sizeof(skb->cb)); + rts_info = IEEE80211_SKB_CB(skb); +- rts_info->flags &= ~IEEE80211_TX_CTL_USE_RTS_CTS; +- rts_info->flags &= ~IEEE80211_TX_CTL_USE_CTS_PROTECT; ++ rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_RTS_CTS; ++ rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_CTS_PROTECT; + rts_info->flags &= ~IEEE80211_TX_CTL_REQ_TX_STATUS; + +- if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) ++ if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) + rts_info->flags |= IEEE80211_TX_CTL_NO_ACK; + else + rts_info->flags &= ~IEEE80211_TX_CTL_NO_ACK; +@@ -84,7 +84,7 @@ static int rt2x00mac_tx_rts_cts(struct r + data_length += rt2x00crypto_tx_overhead(tx_info); + #endif /* CONFIG_RT2X00_LIB_CRYPTO */ + +- if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) ++ if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) + ieee80211_ctstoself_get(rt2x00dev->hw, tx_info->control.vif, + frag_skb->data, data_length, tx_info, + (struct ieee80211_cts *)(skb->data)); +@@ -146,8 +146,8 @@ int rt2x00mac_tx(struct ieee80211_hw *hw + * inside the hardware. + */ + frame_control = le16_to_cpu(ieee80211hdr->frame_control); +- if ((tx_info->flags & (IEEE80211_TX_CTL_USE_RTS_CTS | +- IEEE80211_TX_CTL_USE_CTS_PROTECT)) && ++ if ((tx_info->control.rates[0].flags & (IEEE80211_TX_RC_USE_RTS_CTS | ++ IEEE80211_TX_RC_USE_CTS_PROTECT)) && + !rt2x00dev->ops->hw->set_rts_threshold) { + if (rt2x00queue_available(queue) <= 1) + goto exit_fail; +--- a/drivers/net/wireless/rt2x00/rt2x00queue.c ++++ b/drivers/net/wireless/rt2x00/rt2x00queue.c +@@ -230,8 +230,15 @@ static void rt2x00queue_create_tx_descri + /* + * Determine retry information. + */ +- txdesc->retry_limit = tx_info->control.retry_limit; +- if (tx_info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) ++ txdesc->retry_limit = tx_info->control.rates[0].count - 1; ++ /* ++ * XXX: If at this point we knew whether the HW is going to use ++ * the RETRY_MODE bit or the retry_limit (currently all ++ * use the RETRY_MODE bit) we could do something like b43 ++ * does, set the RETRY_MODE bit when the RC algorithm is ++ * requesting more than the long retry limit. ++ */ ++ if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) + __set_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags); + + /* +--- a/drivers/net/wireless/adm8211.c ++++ b/drivers/net/wireless/adm8211.c +@@ -341,15 +341,14 @@ static void adm8211_interrupt_tci(struct + pci_unmap_single(priv->pdev, info->mapping, + info->skb->len, PCI_DMA_TODEVICE); + +- memset(&txi->status, 0, sizeof(txi->status)); ++ ieee80211_tx_info_clear_status(txi); ++ + skb_pull(skb, sizeof(struct adm8211_tx_hdr)); + memcpy(skb_push(skb, info->hdrlen), skb->cb, info->hdrlen); +- if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) { +- if (status & TDES0_STATUS_ES) +- txi->status.excessive_retries = 1; +- else +- txi->flags |= IEEE80211_TX_STAT_ACK; +- } ++ if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ++ !(status & TDES0_STATUS_ES)) ++ txi->flags |= IEEE80211_TX_STAT_ACK; ++ + ieee80211_tx_status_irqsafe(dev, skb); + + info->skb = NULL; +@@ -1691,8 +1690,10 @@ static int adm8211_tx(struct ieee80211_h + struct ieee80211_hdr *hdr; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_rate *txrate = ieee80211_get_tx_rate(dev, info); ++ u8 rc_flags; + +- short_preamble = !!(txrate->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE); ++ rc_flags = info->control.rates[0].flags; ++ short_preamble = !!(rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE); + plcp_signal = txrate->bitrate; + + hdr = (struct ieee80211_hdr *)skb->data; +@@ -1724,10 +1725,10 @@ static int adm8211_tx(struct ieee80211_h + if (short_preamble) + txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_SHORT_PREAMBLE); + +- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ++ if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) + txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_ENABLE_RTS); + +- txhdr->retry_limit = info->control.retry_limit; ++ txhdr->retry_limit = info->control.rates[0].count; + + adm8211_tx_raw(dev, skb, plcp_signal, hdrlen); + +--- a/drivers/net/wireless/ath5k/base.c ++++ b/drivers/net/wireless/ath5k/base.c +@@ -542,8 +542,8 @@ ath5k_pci_probe(struct pci_dev *pdev, + + /* set up multi-rate retry capabilities */ + if (sc->ah->ah_version == AR5K_AR5212) { +- hw->max_altrates = 3; +- hw->max_altrate_tries = 11; ++ hw->max_rates = 4; ++ hw->max_rate_tries = 11; + } + + /* Finish private driver data initialization */ +@@ -1188,7 +1188,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc + ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL, + (sc->power_level * 2), + ieee80211_get_tx_rate(sc->hw, info)->hw_value, +- info->control.retry_limit, keyidx, 0, flags, 0, 0); ++ info->control.rates[0].count, keyidx, 0, flags, 0, 0); + if (ret) + goto err_unmap; + +@@ -1200,7 +1200,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc + break; + + mrr_rate[i] = rate->hw_value; +- mrr_tries[i] = info->control.retries[i].limit; ++ mrr_tries[i] = info->control.rates[i + 1].count; + } + + ah->ah_setup_mrr_tx_desc(ah, ds, +@@ -1846,30 +1846,26 @@ ath5k_tx_processq(struct ath5k_softc *sc + pci_unmap_single(sc->pdev, bf->skbaddr, skb->len, + PCI_DMA_TODEVICE); + +- memset(&info->status, 0, sizeof(info->status)); +- info->tx_rate_idx = ath5k_hw_to_driver_rix(sc, +- ts.ts_rate[ts.ts_final_idx]); +- info->status.retry_count = ts.ts_longretry; +- ++ ieee80211_tx_info_clear_status(info); + for (i = 0; i < 4; i++) { +- struct ieee80211_tx_altrate *r = +- &info->status.retries[i]; ++ struct ieee80211_tx_rate *r = ++ &info->status.rates[i]; + + if (ts.ts_rate[i]) { +- r->rate_idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]); +- r->limit = ts.ts_retry[i]; ++ r->idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]); ++ r->count = ts.ts_retry[i]; + } else { +- r->rate_idx = -1; +- r->limit = 0; ++ r->idx = -1; ++ r->count = 0; + } + } + +- info->status.excessive_retries = 0; ++ /* count the successful attempt as well */ ++ info->status.rates[ts.ts_final_idx].count++; ++ + if (unlikely(ts.ts_status)) { + sc->ll_stats.dot11ACKFailureCount++; +- if (ts.ts_status & AR5K_TXERR_XRETRY) +- info->status.excessive_retries = 1; +- else if (ts.ts_status & AR5K_TXERR_FILT) ++ if (ts.ts_status & AR5K_TXERR_FILT) + info->flags |= IEEE80211_TX_STAT_TX_FILTERED; + } else { + info->flags |= IEEE80211_TX_STAT_ACK; +--- a/drivers/net/wireless/ath9k/main.c ++++ b/drivers/net/wireless/ath9k/main.c +@@ -461,12 +461,13 @@ void ath_tx_complete(struct ath_softc *s + DPRINTF(sc, ATH_DBG_XMIT, + "%s: TX complete: skb: %p\n", __func__, skb); + ++ ieee80211_tx_info_clear_status(tx_info); + if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK || + tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) { +- /* free driver's private data area of tx_info */ +- if (tx_info->driver_data[0] != NULL) +- kfree(tx_info->driver_data[0]); +- tx_info->driver_data[0] = NULL; ++ /* free driver's private data area of tx_info, XXX: HACK! */ ++ if (tx_info->control.vif != NULL) ++ kfree(tx_info->control.vif); ++ tx_info->control.vif = NULL; + } + + if (tx_status->flags & ATH_TX_BAR) { +@@ -474,17 +475,12 @@ void ath_tx_complete(struct ath_softc *s + tx_status->flags &= ~ATH_TX_BAR; + } + +- if (tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY)) { +- if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { +- /* Frame was not ACKed, but an ACK was expected */ +- tx_info->status.excessive_retries = 1; +- } +- } else { ++ if (!(tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY))) { + /* Frame was ACKed */ + tx_info->flags |= IEEE80211_TX_STAT_ACK; + } + +- tx_info->status.retry_count = tx_status->retries; ++ tx_info->status.rates[0].count = tx_status->retries + 1; + + ieee80211_tx_status(hw, skb); + if (an) +--- a/drivers/net/wireless/ath9k/rc.c ++++ b/drivers/net/wireless/ath9k/rc.c +@@ -1864,24 +1864,21 @@ static void ath_tx_status(void *priv, st + + hdr = (struct ieee80211_hdr *)skb->data; + fc = hdr->frame_control; +- tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; ++ /* XXX: UGLY HACK!! */ ++ tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + + spin_lock_bh(&sc->node_lock); + an = ath_node_find(sc, hdr->addr1); + spin_unlock_bh(&sc->node_lock); + +- if (!an || !priv_sta || !ieee80211_is_data(fc)) { +- if (tx_info->driver_data[0] != NULL) { +- kfree(tx_info->driver_data[0]); +- tx_info->driver_data[0] = NULL; +- } ++ if (tx_info_priv == NULL) + return; +- } +- if (tx_info->driver_data[0] != NULL) { ++ ++ if (an && priv_sta && ieee80211_is_data(fc)) + ath_rate_tx_complete(sc, an, priv_sta, tx_info_priv); +- kfree(tx_info->driver_data[0]); +- tx_info->driver_data[0] = NULL; +- } ++ ++ kfree(tx_info_priv); ++ tx_info->control.vif = NULL; + } + + static void ath_tx_aggr_resp(struct ath_softc *sc, +@@ -1927,10 +1924,11 @@ static void ath_tx_aggr_resp(struct ath_ + } + } + +-static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, +- struct ieee80211_sta *sta, void *priv_sta, +- struct sk_buff *skb, struct rate_selection *sel) ++static void ath_get_rate(void *priv, 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; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ath_softc *sc = priv; + struct ieee80211_hw *hw = sc->hw; +@@ -1946,17 +1944,17 @@ static void ath_get_rate(void *priv, str + + DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__); + +- /* allocate driver private area of tx_info */ +- tx_info->driver_data[0] = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC); +- ASSERT(tx_info->driver_data[0] != NULL); +- tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; ++ /* allocate driver private area of tx_info, XXX: UGLY HACK! */ ++ tx_info->control.vif = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC); ++ tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; ++ ASSERT(tx_info_priv != NULL); + + lowest_idx = rate_lowest_index(sband, sta); + tx_info_priv->min_rate = (sband->bitrates[lowest_idx].bitrate * 2) / 10; + /* lowest rate for management and multicast/broadcast frames */ + if (!ieee80211_is_data(fc) || + is_multicast_ether_addr(hdr->addr1) || !sta) { +- sel->rate_idx = lowest_idx; ++ tx_info->control.rates[0].idx = lowest_idx; + return; + } + +@@ -1967,8 +1965,10 @@ static void ath_get_rate(void *priv, str + tx_info_priv->rcs, + &is_probe, + false); ++#if 0 + if (is_probe) + sel->probe_idx = ath_rc_priv->tx_ratectrl.probe_rate; ++#endif + + /* Ratecontrol sometimes returns invalid rate index */ + if (tx_info_priv->rcs[0].rix != 0xff) +@@ -1976,7 +1976,7 @@ static void ath_get_rate(void *priv, str + else + tx_info_priv->rcs[0].rix = ath_rc_priv->prev_data_rix; + +- sel->rate_idx = tx_info_priv->rcs[0].rix; ++ tx_info->control.rates[0].idx = tx_info_priv->rcs[0].rix; + + /* Check if aggregation has to be enabled for this tid */ + +--- a/drivers/net/wireless/ath9k/xmit.c ++++ b/drivers/net/wireless/ath9k/xmit.c +@@ -168,7 +168,9 @@ static void fill_min_rates(struct sk_buf + + hdr = (struct ieee80211_hdr *)skb->data; + fc = hdr->frame_control; +- tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; ++ ++ /* XXX: HACK! */ ++ tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + + if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) { + txctl->use_minrate = 1; +@@ -288,13 +290,16 @@ static int ath_tx_prepare(struct ath_sof + + if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK) + txctl->flags |= ATH9K_TXDESC_NOACK; +- if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ++ ++ if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) + txctl->flags |= ATH9K_TXDESC_RTSENA; + + /* + * Setup for rate calculations. + */ +- tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; ++ ++ /* XXX: HACK! */ ++ tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + rcs = tx_info_priv->rcs; + + if (ieee80211_is_data(fc) && !txctl->use_minrate) { +@@ -854,7 +859,9 @@ static int ath_tx_send_normal(struct ath + + skb = (struct sk_buff *)bf->bf_mpdu; + tx_info = IEEE80211_SKB_CB(skb); +- tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; ++ ++ /* XXX: HACK! */ ++ tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); + + /* update starting sequence number for subsequent ADDBA request */ +@@ -1248,8 +1255,9 @@ static int ath_tx_processq(struct ath_so + } + skb = bf->bf_mpdu; + tx_info = IEEE80211_SKB_CB(skb); +- tx_info_priv = (struct ath_tx_info_priv *) +- tx_info->driver_data[0]; ++ ++ /* XXX: HACK! */ ++ tx_info_priv = (struct ath_tx_info_priv *) tx_info->control.vif; + if (ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) + tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED; + if ((ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) == 0 && +@@ -1430,7 +1438,8 @@ static int ath_tx_send_ampdu(struct ath_ + + skb = (struct sk_buff *)bf->bf_mpdu; + tx_info = IEEE80211_SKB_CB(skb); +- tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; ++ /* XXX: HACK! */ ++ tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); + + /* Add sub-frame to BAW */ +@@ -1464,7 +1473,7 @@ static u32 ath_lookup_rate(struct ath_so + skb = (struct sk_buff *)bf->bf_mpdu; + tx_info = IEEE80211_SKB_CB(skb); + tx_info_priv = (struct ath_tx_info_priv *) +- tx_info->driver_data[0]; ++ tx_info->control.vif; /* XXX: HACK! */ + memcpy(bf->bf_rcs, + tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); + +@@ -1924,7 +1933,8 @@ static int ath_tx_start_dma(struct ath_s + + bf->bf_flags = txctl->flags; + bf->bf_keytype = txctl->keytype; +- tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; ++ /* XXX: HACK! */ ++ tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + rcs = tx_info_priv->rcs; + bf->bf_rcs[0] = rcs[0]; + bf->bf_rcs[1] = rcs[1]; +--- a/drivers/net/wireless/b43/dma.c ++++ b/drivers/net/wireless/b43/dma.c +@@ -1387,13 +1387,13 @@ void b43_dma_handle_txstatus(struct b43_ + + info = IEEE80211_SKB_CB(meta->skb); + +- memset(&info->status, 0, sizeof(info->status)); ++ ieee80211_tx_info_clear_status(info); + + /* + * Call back to inform the ieee80211 subsystem about + * the status of the transmission. + */ +- frame_succeed = b43_fill_txstatus_report(info, status); ++ frame_succeed = b43_fill_txstatus_report(dev, info, status); + #ifdef CONFIG_B43_DEBUG + if (frame_succeed) + ring->nr_succeed_tx_packets++; +--- a/drivers/net/wireless/b43/main.c ++++ b/drivers/net/wireless/b43/main.c +@@ -4563,7 +4563,7 @@ static int b43_wireless_init(struct ssb_ + BIT(NL80211_IFTYPE_ADHOC); + + hw->queues = b43_modparam_qos ? 4 : 1; +- hw->max_altrates = 1; ++ hw->max_rates = 2; + SET_IEEE80211_DEV(hw, dev->dev); + if (is_valid_ether_addr(sprom->et1mac)) + SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); +--- a/drivers/net/wireless/b43/pio.c ++++ b/drivers/net/wireless/b43/pio.c +@@ -587,9 +587,9 @@ void b43_pio_handle_txstatus(struct b43_ + spin_lock(&q->lock); /* IRQs are already disabled. */ + + info = IEEE80211_SKB_CB(pack->skb); +- memset(&info->status, 0, sizeof(info->status)); ++ ieee80211_tx_info_clear_status(info); + +- b43_fill_txstatus_report(info, status); ++ b43_fill_txstatus_report(dev, info, status); + + total_len = pack->skb->len + b43_txhdr_size(dev); + total_len = roundup(total_len, 4); +--- a/drivers/net/wireless/b43/xmit.c ++++ b/drivers/net/wireless/b43/xmit.c +@@ -185,7 +185,7 @@ int b43_generate_txhdr(struct b43_wldev + u8 *_txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, +- const struct ieee80211_tx_info *info, ++ struct ieee80211_tx_info *info, + u16 cookie) + { + struct b43_txhdr *txhdr = (struct b43_txhdr *)_txhdr; +@@ -202,6 +202,7 @@ int b43_generate_txhdr(struct b43_wldev + u16 phy_ctl = 0; + u8 extra_ft = 0; + struct ieee80211_rate *txrate; ++ struct ieee80211_tx_rate *rates; + + memset(txhdr, 0, sizeof(*txhdr)); + +@@ -291,7 +292,7 @@ int b43_generate_txhdr(struct b43_wldev + phy_ctl |= B43_TXH_PHY_ENC_OFDM; + else + phy_ctl |= B43_TXH_PHY_ENC_CCK; +- if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) + phy_ctl |= B43_TXH_PHY_SHORTPRMBL; + + switch (b43_ieee80211_antenna_sanitize(dev, info->antenna_sel_tx)) { +@@ -314,6 +315,7 @@ int b43_generate_txhdr(struct b43_wldev + B43_WARN_ON(1); + } + ++ rates = info->control.rates; + /* MAC control */ + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) + mac_ctl |= B43_TXH_MAC_ACK; +@@ -324,12 +326,22 @@ int b43_generate_txhdr(struct b43_wldev + mac_ctl |= B43_TXH_MAC_STMSDU; + if (phy->type == B43_PHYTYPE_A) + mac_ctl |= B43_TXH_MAC_5GHZ; +- if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) ++ ++ /* Overwrite rates[0].count to make the retry calculation ++ * in the tx status easier. need the actual retry limit to ++ * detect whether the fallback rate was used. ++ */ ++ if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || ++ (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) { ++ rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count; + mac_ctl |= B43_TXH_MAC_LONGFRAME; ++ } else { ++ rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count; ++ } + + /* Generate the RTS or CTS-to-self frame */ +- if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || +- (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { ++ if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || ++ (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) { + unsigned int len; + struct ieee80211_hdr *hdr; + int rts_rate, rts_rate_fb; +@@ -344,7 +356,7 @@ int b43_generate_txhdr(struct b43_wldev + rts_rate_fb = b43_calc_fallback_rate(rts_rate); + rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb); + +- if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { ++ if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + struct ieee80211_cts *cts; + + if (b43_is_old_txhdr_format(dev)) { +@@ -687,10 +699,18 @@ void b43_handle_txstatus(struct b43_wlde + /* Fill out the mac80211 TXstatus report based on the b43-specific + * txstatus report data. This returns a boolean whether the frame was + * successfully transmitted. */ +-bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, ++bool b43_fill_txstatus_report(struct b43_wldev *dev, ++ struct ieee80211_tx_info *report, + const struct b43_txstatus *status) + { + bool frame_success = 1; ++ int retry_limit; ++ ++ /* preserve the confiured retry limit before clearing the status ++ * The xmit function has overwritten the rc's value with the actual ++ * retry limit done by the hardware */ ++ retry_limit = report->status.rates[0].count; ++ ieee80211_tx_info_clear_status(report); + + if (status->acked) { + /* The frame was ACKed. */ +@@ -700,14 +720,32 @@ bool b43_fill_txstatus_report(struct iee + if (!(report->flags & IEEE80211_TX_CTL_NO_ACK)) { + /* ...but we expected an ACK. */ + frame_success = 0; +- report->status.excessive_retries = 1; + } + } + if (status->frame_count == 0) { + /* The frame was not transmitted at all. */ +- report->status.retry_count = 0; +- } else +- report->status.retry_count = status->frame_count - 1; ++ report->status.rates[0].count = 0; ++ } else if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { ++ /* ++ * If the short retries (RTS, not data frame) have exceeded ++ * the limit, the hw will not have tried the selected rate, ++ * but will have used the fallback rate instead. ++ * Don't let the rate control count attempts for the selected ++ * rate in this case, otherwise the statistics will be off. ++ */ ++ report->status.rates[0].count = 0; ++ report->status.rates[1].count = status->frame_count; ++ } else { ++ if (status->frame_count > retry_limit) { ++ report->status.rates[0].count = retry_limit; ++ report->status.rates[1].count = status->frame_count - ++ retry_limit; ++ ++ } else { ++ report->status.rates[0].count = status->frame_count; ++ report->status.rates[1].idx = -1; ++ } ++ } + + return frame_success; + } +--- a/drivers/net/wireless/b43/xmit.h ++++ b/drivers/net/wireless/b43/xmit.h +@@ -178,7 +178,7 @@ int b43_generate_txhdr(struct b43_wldev + u8 * txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, +- const struct ieee80211_tx_info *txctl, u16 cookie); ++ struct ieee80211_tx_info *txctl, u16 cookie); + + /* Transmit Status */ + struct b43_txstatus { +@@ -294,7 +294,8 @@ void b43_rx(struct b43_wldev *dev, struc + + void b43_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status); +-bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, ++bool b43_fill_txstatus_report(struct b43_wldev *dev, ++ struct ieee80211_tx_info *report, + const struct b43_txstatus *status); + + void b43_tx_suspend(struct b43_wldev *dev); +--- a/drivers/net/wireless/b43legacy/dma.c ++++ b/drivers/net/wireless/b43legacy/dma.c +@@ -1411,6 +1411,7 @@ void b43legacy_dma_handle_txstatus(struc + struct b43legacy_dmaring *ring; + struct b43legacy_dmadesc_generic *desc; + struct b43legacy_dmadesc_meta *meta; ++ int retry_limit; + int slot; + + ring = parse_cookie(dev, status->cookie, &slot); +@@ -1437,25 +1438,42 @@ void b43legacy_dma_handle_txstatus(struc + struct ieee80211_tx_info *info; + BUG_ON(!meta->skb); + info = IEEE80211_SKB_CB(meta->skb); +- /* Call back to inform the ieee80211 subsystem about the +- * status of the transmission. +- * Some fields of txstat are already filled in dma_tx(). +- */ + +- memset(&info->status, 0, sizeof(info->status)); ++ /* preserve the confiured retry limit before clearing the status ++ * The xmit function has overwritten the rc's value with the actual ++ * retry limit done by the hardware */ ++ retry_limit = info->status.rates[0].count; ++ ieee80211_tx_info_clear_status(info); + +- if (status->acked) { ++ if (status->acked) + info->flags |= IEEE80211_TX_STAT_ACK; ++ ++ if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { ++ /* ++ * If the short retries (RTS, not data frame) have exceeded ++ * the limit, the hw will not have tried the selected rate, ++ * but will have used the fallback rate instead. ++ * Don't let the rate control count attempts for the selected ++ * rate in this case, otherwise the statistics will be off. ++ */ ++ info->status.rates[0].count = 0; ++ info->status.rates[1].count = status->frame_count; + } else { +- if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) +- info->status.excessive_retries = 1; ++ if (status->frame_count > retry_limit) { ++ info->status.rates[0].count = retry_limit; ++ info->status.rates[1].count = status->frame_count - ++ retry_limit; ++ ++ } else { ++ info->status.rates[0].count = status->frame_count; ++ info->status.rates[1].idx = -1; ++ } + } +- if (status->frame_count == 0) { +- /* The frame was not transmitted at all. */ +- info->status.retry_count = 0; +- } else +- info->status.retry_count = status->frame_count +- - 1; ++ ++ /* Call back to inform the ieee80211 subsystem about the ++ * status of the transmission. ++ * Some fields of txstat are already filled in dma_tx(). ++ */ + ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb); + /* skb is freed by ieee80211_tx_status_irqsafe() */ + meta->skb = NULL; +--- a/drivers/net/wireless/b43legacy/main.c ++++ b/drivers/net/wireless/b43legacy/main.c +@@ -3691,7 +3691,7 @@ static int b43legacy_wireless_init(struc + BIT(NL80211_IFTYPE_WDS) | + BIT(NL80211_IFTYPE_ADHOC); + hw->queues = 1; /* FIXME: hardware has more queues */ +- hw->max_altrates = 1; ++ hw->max_rates = 2; + SET_IEEE80211_DEV(hw, dev->dev); + if (is_valid_ether_addr(sprom->et1mac)) + SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); +--- a/drivers/net/wireless/b43legacy/pio.c ++++ b/drivers/net/wireless/b43legacy/pio.c +@@ -491,6 +491,7 @@ void b43legacy_pio_handle_txstatus(struc + struct b43legacy_pioqueue *queue; + struct b43legacy_pio_txpacket *packet; + struct ieee80211_tx_info *info; ++ int retry_limit; + + queue = parse_cookie(dev, status->cookie, &packet); + B43legacy_WARN_ON(!queue); +@@ -503,11 +504,37 @@ void b43legacy_pio_handle_txstatus(struc + sizeof(struct b43legacy_txhdr_fw3)); + + info = IEEE80211_SKB_CB(packet->skb); +- memset(&info->status, 0, sizeof(info->status)); ++ ++ /* preserve the confiured retry limit before clearing the status ++ * The xmit function has overwritten the rc's value with the actual ++ * retry limit done by the hardware */ ++ retry_limit = info->status.rates[0].count; ++ ieee80211_tx_info_clear_status(info); + + if (status->acked) + info->flags |= IEEE80211_TX_STAT_ACK; +- info->status.retry_count = status->frame_count - 1; ++ ++ if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { ++ /* ++ * If the short retries (RTS, not data frame) have exceeded ++ * the limit, the hw will not have tried the selected rate, ++ * but will have used the fallback rate instead. ++ * Don't let the rate control count attempts for the selected ++ * rate in this case, otherwise the statistics will be off. ++ */ ++ info->status.rates[0].count = 0; ++ info->status.rates[1].count = status->frame_count; ++ } else { ++ if (status->frame_count > retry_limit) { ++ info->status.rates[0].count = retry_limit; ++ info->status.rates[1].count = status->frame_count - ++ retry_limit; ++ ++ } else { ++ info->status.rates[0].count = status->frame_count; ++ info->status.rates[1].idx = -1; ++ } ++ } + ieee80211_tx_status_irqsafe(dev->wl->hw, packet->skb); + packet->skb = NULL; + +--- a/drivers/net/wireless/b43legacy/xmit.c ++++ b/drivers/net/wireless/b43legacy/xmit.c +@@ -188,7 +188,7 @@ static int generate_txhdr_fw3(struct b43 + struct b43legacy_txhdr_fw3 *txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, +- const struct ieee80211_tx_info *info, ++ struct ieee80211_tx_info *info, + u16 cookie) + { + const struct ieee80211_hdr *wlhdr; +@@ -201,6 +201,7 @@ static int generate_txhdr_fw3(struct b43 + u32 mac_ctl = 0; + u16 phy_ctl = 0; + struct ieee80211_rate *tx_rate; ++ struct ieee80211_tx_rate *rates; + + wlhdr = (const struct ieee80211_hdr *)fragment_data; + +@@ -274,7 +275,7 @@ static int generate_txhdr_fw3(struct b43 + /* PHY TX Control word */ + if (rate_ofdm) + phy_ctl |= B43legacy_TX4_PHY_OFDM; +- if (dev->short_preamble) ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) + phy_ctl |= B43legacy_TX4_PHY_SHORTPRMBL; + switch (info->antenna_sel_tx) { + case 0: +@@ -291,6 +292,7 @@ static int generate_txhdr_fw3(struct b43 + } + + /* MAC control */ ++ rates = info->control.rates; + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) + mac_ctl |= B43legacy_TX4_MAC_ACK; + if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) +@@ -299,12 +301,22 @@ static int generate_txhdr_fw3(struct b43 + mac_ctl |= B43legacy_TX4_MAC_STMSDU; + if (rate_fb_ofdm) + mac_ctl |= B43legacy_TX4_MAC_FALLBACKOFDM; +- if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) ++ ++ /* Overwrite rates[0].count to make the retry calculation ++ * in the tx status easier. need the actual retry limit to ++ * detect whether the fallback rate was used. ++ */ ++ if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || ++ (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) { ++ rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count; + mac_ctl |= B43legacy_TX4_MAC_LONGFRAME; ++ } else { ++ rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count; ++ } + + /* Generate the RTS or CTS-to-self frame */ +- if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || +- (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { ++ if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || ++ (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) { + unsigned int len; + struct ieee80211_hdr *hdr; + int rts_rate; +@@ -319,7 +331,7 @@ static int generate_txhdr_fw3(struct b43 + if (rts_rate_fb_ofdm) + mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM; + +- if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { ++ if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + ieee80211_ctstoself_get(dev->wl->hw, + info->control.vif, + fragment_data, +@@ -362,7 +374,7 @@ int b43legacy_generate_txhdr(struct b43l + u8 *txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, +- const struct ieee80211_tx_info *info, ++ struct ieee80211_tx_info *info, + u16 cookie) + { + return generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr, +--- a/drivers/net/wireless/b43legacy/xmit.h ++++ b/drivers/net/wireless/b43legacy/xmit.h +@@ -80,7 +80,7 @@ int b43legacy_generate_txhdr(struct b43l + u8 *txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, +- const struct ieee80211_tx_info *info, ++ struct ieee80211_tx_info *info, + u16 cookie); + + +--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c ++++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c +@@ -422,34 +422,6 @@ static void rs_free_sta(void *priv, stru + } + + +-/* +- * get ieee prev rate from rate scale table. +- * for A and B mode we need to overright prev +- * value +- */ +-static int rs_adjust_next_rate(struct iwl3945_priv *priv, int rate) +-{ +- int next_rate = iwl3945_get_prev_ieee_rate(rate); +- +- switch (priv->band) { +- case IEEE80211_BAND_5GHZ: +- if (rate == IWL_RATE_12M_INDEX) +- next_rate = IWL_RATE_9M_INDEX; +- else if (rate == IWL_RATE_6M_INDEX) +- next_rate = IWL_RATE_6M_INDEX; +- break; +-/* XXX cannot be invoked in current mac80211 so not a regression +- case MODE_IEEE80211B: +- if (rate == IWL_RATE_11M_INDEX_TABLE) +- next_rate = IWL_RATE_5M_INDEX_TABLE; +- break; +- */ +- default: +- break; +- } +- +- return next_rate; +-} + /** + * rs_tx_status - Update rate control values based on Tx results + * +@@ -460,17 +432,21 @@ static void rs_tx_status(void *priv_rate + struct ieee80211_sta *sta, void *priv_sta, + struct sk_buff *skb) + { +- u8 retries, current_count; ++ u8 retries = 0, current_count; + int scale_rate_index, first_index, last_index; + unsigned long flags; + struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate; + struct iwl3945_rs_sta *rs_sta = priv_sta; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); ++ int i; + + IWL_DEBUG_RATE("enter\n"); + +- retries = info->status.retry_count; +- first_index = sband->bitrates[info->tx_rate_idx].hw_value; ++ for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) ++ retries += info->status.rates[i].count; ++ retries--; ++ ++ first_index = sband->bitrates[info->status.rates[0].idx].hw_value; + if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) { + IWL_DEBUG_RATE("leave: Rate out of bounds: %d\n", first_index); + return; +@@ -502,7 +478,7 @@ static void rs_tx_status(void *priv_rate + last_index = scale_rate_index; + } else { + current_count = priv->retry_rate; +- last_index = rs_adjust_next_rate(priv, ++ last_index = iwl3945_rs_next_rate(priv, + scale_rate_index); + } + +@@ -518,7 +494,7 @@ static void rs_tx_status(void *priv_rate + + if (retries) + scale_rate_index = +- rs_adjust_next_rate(priv, scale_rate_index); ++ iwl3945_rs_next_rate(priv, scale_rate_index); + } + + +@@ -630,10 +606,11 @@ static u16 iwl3945_get_adjacent_rate(str + * rate table and must reference the driver allocated rate table + * + */ +-static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, +- struct ieee80211_sta *sta, void *priv_sta, +- struct sk_buff *skb, struct rate_selection *sel) ++static void 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; + u16 high_low; +@@ -649,6 +626,7 @@ static void rs_get_rate(void *priv_r, st + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + u16 fc, rate_mask; + struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_r; ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + DECLARE_MAC_BUF(mac); + + IWL_DEBUG_RATE("enter\n"); +@@ -660,7 +638,7 @@ static void rs_get_rate(void *priv_r, st + is_multicast_ether_addr(hdr->addr1) || + !sta || !priv_sta) { + IWL_DEBUG_RATE("leave: No STA priv data to update!\n"); +- sel->rate_idx = rate_lowest_index(sband, sta); ++ info->control.rates[0].idx = rate_lowest_index(sband, sta); + return; + } + +@@ -793,9 +771,10 @@ static void rs_get_rate(void *priv_r, st + + rs_sta->last_txrate_idx = index; + if (sband->band == IEEE80211_BAND_5GHZ) +- sel->rate_idx = rs_sta->last_txrate_idx - IWL_FIRST_OFDM_RATE; ++ info->control.rates[0].idx = rs_sta->last_txrate_idx - ++ IWL_FIRST_OFDM_RATE; + else +- sel->rate_idx = rs_sta->last_txrate_idx; ++ info->control.rates[0].idx = rs_sta->last_txrate_idx; + + IWL_DEBUG_RATE("leave: %d\n", index); + } +--- a/drivers/net/wireless/iwlwifi/iwl-3945.c ++++ b/drivers/net/wireless/iwlwifi/iwl-3945.c +@@ -261,6 +261,35 @@ static inline const char *iwl3945_get_tx + } + #endif + ++/* ++ * get ieee prev rate from rate scale table. ++ * for A and B mode we need to overright prev ++ * value ++ */ ++int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate) ++{ ++ int next_rate = iwl3945_get_prev_ieee_rate(rate); ++ ++ switch (priv->band) { ++ case IEEE80211_BAND_5GHZ: ++ if (rate == IWL_RATE_12M_INDEX) ++ next_rate = IWL_RATE_9M_INDEX; ++ else if (rate == IWL_RATE_6M_INDEX) ++ next_rate = IWL_RATE_6M_INDEX; ++ break; ++/* XXX cannot be invoked in current mac80211 so not a regression ++ case MODE_IEEE80211B: ++ if (rate == IWL_RATE_11M_INDEX_TABLE) ++ next_rate = IWL_RATE_5M_INDEX_TABLE; ++ break; ++ */ ++ default: ++ break; ++ } ++ ++ return next_rate; ++} ++ + + /** + * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd +@@ -308,6 +337,7 @@ static void iwl3945_rx_reply_tx(struct i + struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; + u32 status = le32_to_cpu(tx_resp->status); + int rate_idx; ++ int fail, i; + + if ((index >= txq->q.n_bd) || (iwl3945_x2_queue_used(&txq->q, index) == 0)) { + IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " +@@ -318,9 +348,33 @@ static void iwl3945_rx_reply_tx(struct i + } + + info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]); +- memset(&info->status, 0, sizeof(info->status)); ++ ieee80211_tx_info_clear_status(info); ++ ++ /* Fill the MRR chain with some info about on-chip retransmissions */ ++ rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); ++ if (info->band == IEEE80211_BAND_5GHZ) ++ rate_idx -= IWL_FIRST_OFDM_RATE; ++ ++ info->status.rates[0].count = tx_resp->failure_frame + 1; ++ fail = tx_resp->failure_frame; ++ for(i = 0; i < 4; i++) { ++ int next = iwl3945_rs_next_rate(priv, rate_idx); ++ ++ info->status.rates[i].idx = rate_idx; ++ ++ if ((rate_idx == next) || (i == 3)) { ++ info->status.rates[i].count = fail; ++ break; ++ } ++ ++ info->status.rates[i].count = priv->retry_rate; ++ fail -= priv->retry_rate; ++ rate_idx = next; ++ if (fail <= 0) ++ break; ++ } ++ info->status.rates[i].count++; /* add final attempt */ + +- info->status.retry_count = tx_resp->failure_frame; + /* tx_status->rts_retry_count = tx_resp->failure_rts; */ + info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ? + IEEE80211_TX_STAT_ACK : 0; +@@ -329,10 +383,6 @@ static void iwl3945_rx_reply_tx(struct i + txq_id, iwl3945_get_tx_fail_reason(status), status, + tx_resp->rate, tx_resp->failure_frame); + +- rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); +- if (info->band == IEEE80211_BAND_5GHZ) +- rate_idx -= IWL_FIRST_OFDM_RATE; +- info->tx_rate_idx = rate_idx; + IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); + iwl3945_tx_queue_reclaim(priv, txq_id, index); + +--- a/drivers/net/wireless/iwlwifi/iwl-3945.h ++++ b/drivers/net/wireless/iwlwifi/iwl-3945.h +@@ -954,6 +954,8 @@ static inline int is_channel_ibss(const + extern const struct iwl3945_channel_info *iwl3945_get_channel_info( + const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel); + ++extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate); ++ + /* Requires full declaration of iwl3945_priv before including */ + #include "iwl-3945-io.h" + +--- a/drivers/net/wireless/iwlwifi/iwl-core.c ++++ b/drivers/net/wireless/iwlwifi/iwl-core.c +@@ -88,26 +88,27 @@ EXPORT_SYMBOL(iwl_rates); + * translate ucode response to mac80211 tx status control values + */ + void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, +- struct ieee80211_tx_info *control) ++ struct ieee80211_tx_info *info) + { + int rate_index; ++ struct ieee80211_tx_rate *r = &info->control.rates[0]; + +- control->antenna_sel_tx = ++ info->antenna_sel_tx = + ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); + if (rate_n_flags & RATE_MCS_HT_MSK) +- control->flags |= IEEE80211_TX_CTL_OFDM_HT; ++ r->flags |= IEEE80211_TX_RC_MCS; + if (rate_n_flags & RATE_MCS_GF_MSK) +- control->flags |= IEEE80211_TX_CTL_GREEN_FIELD; ++ r->flags |= IEEE80211_TX_RC_GREEN_FIELD; + if (rate_n_flags & RATE_MCS_FAT_MSK) +- control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH; ++ r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; + if (rate_n_flags & RATE_MCS_DUP_MSK) +- control->flags |= IEEE80211_TX_CTL_DUP_DATA; ++ r->flags |= IEEE80211_TX_RC_DUP_DATA; + if (rate_n_flags & RATE_MCS_SGI_MSK) +- control->flags |= IEEE80211_TX_CTL_SHORT_GI; ++ r->flags |= IEEE80211_TX_RC_SHORT_GI; + rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); +- if (control->band == IEEE80211_BAND_5GHZ) ++ if (info->band == IEEE80211_BAND_5GHZ) + rate_index -= IWL_FIRST_OFDM_RATE; +- control->tx_rate_idx = rate_index; ++ r->idx = rate_index; + } + EXPORT_SYMBOL(iwl_hwrate_to_tx_control); + +--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c ++++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c +@@ -2397,6 +2397,7 @@ static void iwl3945_build_tx_cmd_basic(s + { + __le16 fc = hdr->frame_control; + __le32 tx_flags = cmd->cmd.tx.tx_flags; ++ u8 rc_flags = info->control.rates[0].flags; + + cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { +@@ -2423,10 +2424,10 @@ static void iwl3945_build_tx_cmd_basic(s + tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; + } + +- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { ++ if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { + tx_flags |= TX_CMD_FLG_RTS_MSK; + tx_flags &= ~TX_CMD_FLG_CTS_MSK; +- } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { ++ } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + tx_flags &= ~TX_CMD_FLG_RTS_MSK; + tx_flags |= TX_CMD_FLG_CTS_MSK; + } +--- a/drivers/net/wireless/mac80211_hwsim.c ++++ b/drivers/net/wireless/mac80211_hwsim.c +@@ -209,7 +209,7 @@ static bool mac80211_hwsim_tx_frame(stru + /* TODO: set mactime */ + rx_status.freq = data->channel->center_freq; + rx_status.band = data->channel->band; +- rx_status.rate_idx = info->tx_rate_idx; ++ rx_status.rate_idx = info->control.rates[0].idx; + /* TODO: simulate signal strength (and optional packet drop) */ + + /* Copy skb to all enabled radios that are on the current frequency */ +@@ -269,13 +269,9 @@ static int mac80211_hwsim_tx(struct ieee + if (txi->control.sta) + hwsim_check_sta_magic(txi->control.sta); + +- memset(&txi->status, 0, sizeof(txi->status)); +- if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) { +- if (ack) +- txi->flags |= IEEE80211_TX_STAT_ACK; +- else +- txi->status.excessive_retries = 1; +- } ++ ieee80211_tx_info_clear_status(txi); ++ if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack) ++ txi->flags |= IEEE80211_TX_STAT_ACK; + ieee80211_tx_status_irqsafe(hw, skb); + return NETDEV_TX_OK; + } +--- a/drivers/net/wireless/rtl8180_dev.c ++++ b/drivers/net/wireless/rtl8180_dev.c +@@ -182,15 +182,13 @@ static void rtl8180_handle_tx(struct iee + skb->len, PCI_DMA_TODEVICE); + + info = IEEE80211_SKB_CB(skb); +- memset(&info->status, 0, sizeof(info->status)); ++ ieee80211_tx_info_clear_status(info); + +- if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { +- if (flags & RTL818X_TX_DESC_FLAG_TX_OK) +- info->flags |= IEEE80211_TX_STAT_ACK; +- else +- info->status.excessive_retries = 1; +- } +- info->status.retry_count = flags & 0xFF; ++ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && ++ (flags & RTL818X_TX_DESC_FLAG_TX_OK)) ++ info->flags |= IEEE80211_TX_STAT_ACK; ++ ++ info->status.rates[0].count = (flags & 0xFF) + 1; + + ieee80211_tx_status_irqsafe(dev, skb); + if (ring->entries - skb_queue_len(&ring->queue) == 2) +@@ -243,6 +241,7 @@ static int rtl8180_tx(struct ieee80211_h + unsigned int idx, prio; + dma_addr_t mapping; + u32 tx_flags; ++ u8 rc_flags; + u16 plcp_len = 0; + __le16 rts_duration = 0; + +@@ -261,15 +260,16 @@ static int rtl8180_tx(struct ieee80211_h + tx_flags |= RTL818X_TX_DESC_FLAG_DMA | + RTL818X_TX_DESC_FLAG_NO_ENC; + +- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { ++ rc_flags = info->control.rates[0].flags; ++ if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { + tx_flags |= RTL818X_TX_DESC_FLAG_RTS; + tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; +- } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { ++ } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + tx_flags |= RTL818X_TX_DESC_FLAG_CTS; + tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; + } + +- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ++ if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) + rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len, + info); + +@@ -292,9 +292,9 @@ static int rtl8180_tx(struct ieee80211_h + entry->plcp_len = cpu_to_le16(plcp_len); + entry->tx_buf = cpu_to_le32(mapping); + entry->frame_len = cpu_to_le32(skb->len); +- entry->flags2 = info->control.retries[0].rate_idx >= 0 ? ++ entry->flags2 = info->control.rates[1].idx >= 0 ? + ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0; +- entry->retry_limit = info->control.retry_limit; ++ entry->retry_limit = info->control.rates[0].count; + entry->flags = cpu_to_le32(tx_flags); + __skb_queue_tail(&ring->queue, skb); + if (ring->entries - skb_queue_len(&ring->queue) < 2) +@@ -856,7 +856,7 @@ static int __devinit rtl8180_probe(struc + priv = dev->priv; + priv->pdev = pdev; + +- dev->max_altrates = 1; ++ dev->max_rates = 2; + SET_IEEE80211_DEV(dev, &pdev->dev); + pci_set_drvdata(pdev, dev); + +--- a/drivers/net/wireless/rtl8187_dev.c ++++ b/drivers/net/wireless/rtl8187_dev.c +@@ -163,7 +163,7 @@ static void rtl8187_tx_cb(struct urb *ur + usb_free_urb(info->driver_data[1]); + skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) : + sizeof(struct rtl8187_tx_hdr)); +- memset(&info->status, 0, sizeof(info->status)); ++ ieee80211_tx_info_clear_status(info); + info->flags |= IEEE80211_TX_STAT_ACK; + ieee80211_tx_status_irqsafe(hw, skb); + } +@@ -192,12 +192,12 @@ static int rtl8187_tx(struct ieee80211_h + flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24; + if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control)) + flags |= RTL818X_TX_DESC_FLAG_MOREFRAG; +- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { + flags |= RTL818X_TX_DESC_FLAG_RTS; + flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; + rts_dur = ieee80211_rts_duration(dev, priv->vif, + skb->len, info); +- } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { ++ } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + flags |= RTL818X_TX_DESC_FLAG_CTS; + flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; + } +@@ -208,7 +208,7 @@ static int rtl8187_tx(struct ieee80211_h + hdr->flags = cpu_to_le32(flags); + hdr->len = 0; + hdr->rts_duration = rts_dur; +- hdr->retry = cpu_to_le32(info->control.retry_limit << 8); ++ hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); + buf = hdr; + + ep = 2; +@@ -226,7 +226,7 @@ static int rtl8187_tx(struct ieee80211_h + memset(hdr, 0, sizeof(*hdr)); + hdr->flags = cpu_to_le32(flags); + hdr->rts_duration = rts_dur; +- hdr->retry = cpu_to_le32(info->control.retry_limit << 8); ++ hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); + hdr->tx_duration = + ieee80211_generic_frame_duration(dev, priv->vif, + skb->len, txrate); +--- a/drivers/net/wireless/p54/p54common.c ++++ b/drivers/net/wireless/p54/p54common.c +@@ -577,7 +577,7 @@ static void p54_rx_frame_sent(struct iee + __skb_unlink(entry, &priv->tx_queue); + spin_unlock_irqrestore(&priv->tx_queue.lock, flags); + +- memset(&info->status, 0, sizeof(info->status)); ++ ieee80211_tx_info_clear_status(info); + entry_hdr = (struct p54_control_hdr *) entry->data; + entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data; + if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0) +@@ -587,10 +587,8 @@ static void p54_rx_frame_sent(struct iee + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { + if (!(payload->status & 0x01)) + info->flags |= IEEE80211_TX_STAT_ACK; +- else +- info->status.excessive_retries = 1; + } +- info->status.retry_count = payload->retries - 1; ++ info->status.rates[0].count = payload->retries; + info->status.ack_signal = p54_rssi_to_dbm(dev, + le16_to_cpu(payload->ack_rssi)); + skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); +@@ -816,6 +814,7 @@ static int p54_tx(struct ieee80211_hw *d + size_t padding, len; + u8 rate; + u8 cts_rate = 0x20; ++ u8 rc_flags; + + current_queue = &priv->tx_stats[skb_get_queue_mapping(skb) + 4]; + if (unlikely(current_queue->len > current_queue->limit)) +@@ -838,18 +837,19 @@ static int p54_tx(struct ieee80211_hw *d + hdr->magic1 = cpu_to_le16(0x0010); + hdr->len = cpu_to_le16(len); + hdr->type = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cpu_to_le16(1); +- hdr->retry1 = hdr->retry2 = info->control.retry_limit; ++ hdr->retry1 = hdr->retry2 = info->control.rates[0].count; + + /* TODO: add support for alternate retry TX rates */ + rate = ieee80211_get_tx_rate(dev, info)->hw_value; +- if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) { ++ rc_flags = info->control.rates[0].flags; ++ if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) { + rate |= 0x10; + cts_rate |= 0x10; + } +- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { ++ if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { + rate |= 0x40; + cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; +- } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { ++ } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + rate |= 0x20; + cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; + } +--- a/drivers/net/wireless/iwlwifi/iwl-4965.c ++++ b/drivers/net/wireless/iwlwifi/iwl-4965.c +@@ -619,10 +619,10 @@ static void iwl4965_gain_computation(str + static void iwl4965_rts_tx_cmd_flag(struct ieee80211_tx_info *info, + __le32 *tx_flags) + { +- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { ++ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { + *tx_flags |= TX_CMD_FLG_RTS_MSK; + *tx_flags &= ~TX_CMD_FLG_CTS_MSK; +- } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { ++ } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + *tx_flags &= ~TX_CMD_FLG_RTS_MSK; + *tx_flags |= TX_CMD_FLG_CTS_MSK; + } +@@ -2070,7 +2070,7 @@ static int iwl4965_tx_status_reply_tx(st + agg->frame_count, agg->start_idx, idx); + + info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); +- info->status.retry_count = tx_resp->failure_frame; ++ info->status.rates[0].count = tx_resp->failure_frame + 1; + info->flags &= ~IEEE80211_TX_CTL_AMPDU; + info->flags |= iwl_is_tx_success(status)? + IEEE80211_TX_STAT_ACK : 0; +@@ -2227,7 +2227,7 @@ static void iwl4965_rx_reply_tx(struct i + iwl_txq_check_empty(priv, sta_id, tid, txq_id); + } + } else { +- info->status.retry_count = tx_resp->failure_frame; ++ info->status.rates[0].count = tx_resp->failure_frame + 1; + info->flags |= + iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; + iwl_hwrate_to_tx_control(priv, +--- a/drivers/net/wireless/iwlwifi/iwl-5000.c ++++ b/drivers/net/wireless/iwlwifi/iwl-5000.c +@@ -390,8 +390,8 @@ static void iwl5000_chain_noise_reset(st + static void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info, + __le32 *tx_flags) + { +- if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || +- (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) ++ if ((info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || ++ (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) + *tx_flags |= TX_CMD_FLG_RTS_CTS_MSK; + else + *tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK; +@@ -1136,7 +1136,7 @@ static int iwl5000_tx_status_reply_tx(st + agg->frame_count, agg->start_idx, idx); + + info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); +- info->status.retry_count = tx_resp->failure_frame; ++ info->status.rates[0].count = tx_resp->failure_frame + 1; + info->flags &= ~IEEE80211_TX_CTL_AMPDU; + info->flags |= iwl_is_tx_success(status)? + IEEE80211_TX_STAT_ACK : 0; +@@ -1289,7 +1289,7 @@ static void iwl5000_rx_reply_tx(struct i + iwl_txq_check_empty(priv, sta_id, tid, txq_id); + } + } else { +- info->status.retry_count = tx_resp->failure_frame; ++ info->status.rates[0].count = tx_resp->failure_frame + 1; + info->flags = + iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; + iwl_hwrate_to_tx_control(priv, +--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c ++++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +@@ -800,7 +800,7 @@ static void rs_tx_status(void *priv_r, s + !(info->flags & IEEE80211_TX_STAT_AMPDU)) + return; + +- retries = info->status.retry_count; ++ retries = info->status.rates[0].count + 1; + + if (retries > 15) + retries = 15; +@@ -832,20 +832,15 @@ static void rs_tx_status(void *priv_r, s + if (priv->band == IEEE80211_BAND_5GHZ) + rs_index -= IWL_FIRST_OFDM_RATE; + +- if ((info->tx_rate_idx < 0) || +- (tbl_type.is_SGI ^ +- !!(info->flags & IEEE80211_TX_CTL_SHORT_GI)) || +- (tbl_type.is_fat ^ +- !!(info->flags & IEEE80211_TX_CTL_40_MHZ_WIDTH)) || +- (tbl_type.is_dup ^ +- !!(info->flags & IEEE80211_TX_CTL_DUP_DATA)) || +- (tbl_type.ant_type ^ info->antenna_sel_tx) || +- (!!(tx_rate & RATE_MCS_HT_MSK) ^ +- !!(info->flags & IEEE80211_TX_CTL_OFDM_HT)) || +- (!!(tx_rate & RATE_MCS_GF_MSK) ^ +- !!(info->flags & IEEE80211_TX_CTL_GREEN_FIELD)) || ++ if ((info->status.rates[0].idx < 0) || ++ (tbl_type.is_SGI != !!(info->status.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)) || ++ (tbl_type.is_fat != !!(info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) || ++ (tbl_type.is_dup != !!(info->status.rates[0].flags & IEEE80211_TX_RC_DUP_DATA)) || ++ (tbl_type.ant_type != info->antenna_sel_tx) || ++ (!!(tx_rate & RATE_MCS_HT_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) || ++ (!!(tx_rate & RATE_MCS_GF_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)) || + (hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate != +- hw->wiphy->bands[info->band]->bitrates[info->tx_rate_idx].bitrate)) { ++ hw->wiphy->bands[info->band]->bitrates[info->status.rates[0].idx].bitrate)) { + IWL_DEBUG_RATE("initial rate does not match 0x%x\n", tx_rate); + goto out; + } +@@ -2103,15 +2098,17 @@ static void rs_initialize_lq(struct iwl_ + return; + } + +-static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, +- struct ieee80211_sta *sta, void *priv_sta, +- struct sk_buff *skb, struct rate_selection *sel) ++static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta, ++ struct ieee80211_tx_rate_control *txrc) + { + + int i; ++ struct sk_buff *skb = txrc->skb; ++ struct ieee80211_supported_band *sband = txrc->sband; + struct iwl_priv *priv = (struct iwl_priv *)priv_r; + struct ieee80211_conf *conf = &priv->hw->conf; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + __le16 fc; + struct iwl_lq_sta *lq_sta; + +@@ -2122,7 +2119,7 @@ static void rs_get_rate(void *priv_r, st + fc = hdr->frame_control; + if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) || + !sta || !priv_sta) { +- sel->rate_idx = rate_lowest_index(sband, sta); ++ info->control.rates[0].idx = rate_lowest_index(sband, sta); + return; + } + +@@ -2149,13 +2146,13 @@ static void rs_get_rate(void *priv_r, st + } + + if ((i < 0) || (i > IWL_RATE_COUNT)) { +- sel->rate_idx = rate_lowest_index(sband, sta); ++ info->control.rates[0].idx = rate_lowest_index(sband, sta); + return; + } + + if (sband->band == IEEE80211_BAND_5GHZ) + i -= IWL_FIRST_OFDM_RATE; +- sel->rate_idx = i; ++ info->control.rates[0].idx = i; + } + + static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta, |