+--- a/drivers/net/wireless/ath/ath9k/Kconfig
++++ b/drivers/net/wireless/ath/ath9k/Kconfig
+@@ -32,6 +32,13 @@ config ATH9K_DEBUGFS
+
+ Also required for changing debug message flags at run time.
+
++config ATH9K_PKTLOG
++ bool "ath9k packet logging support"
++ depends on ATH9K_DEBUGFS
++ ---help---
++ Say Y to dump frame information during tx/rx, rate information
++ and ani state.
++
+ config ATH9K_HTC
+ tristate "Atheros HTC based wireless cards support"
+ depends on USB && MAC80211
+@@ -53,3 +60,4 @@ config ATH9K_HTC_DEBUGFS
+ depends on ATH9K_HTC && DEBUG_FS
+ ---help---
+ Say Y, if you need access to ath9k_htc's statistics.
++
+--- a/drivers/net/wireless/ath/ath9k/Makefile
++++ b/drivers/net/wireless/ath/ath9k/Makefile
+@@ -10,6 +10,7 @@ ath9k-y += beacon.o \
+ ath9k-$(CONFIG_PCI) += pci.o
+ ath9k-$(CONFIG_ATHEROS_AR71XX) += ahb.o
+ ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o
++ath9k-$(CONFIG_ATH9K_PKTLOG) += pktlog.o
+
+ obj-$(CONFIG_ATH9K) += ath9k.o
+
+--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+@@ -215,7 +215,8 @@ static void ar9002_hw_fill_txdesc(struct
+ }
+
+ static int ar9002_hw_proc_txdesc(struct ath_hw *ah, void *ds,
+- struct ath_tx_status *ts)
++ struct ath_tx_status *ts,
++ void *txs_desc)
+ {
+ struct ar5416_desc *ads = AR5416DESC(ds);
+
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/ar9003_2p0_initvals.h
@@ -0,0 +1,1784 @@
+};
+
+#endif /* INITVALS_9003_2P2_H */
+--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+@@ -739,6 +739,12 @@ static bool ar9003_hw_init_cal(struct at
+ */
+ ar9003_hw_set_chain_masks(ah, 0x7, 0x7);
+
++ /* Do Tx IQ Calibration */
++ ar9003_hw_tx_iq_cal(ah);
++ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
++ udelay(5);
++ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
++
+ /* Calibrate the AGC */
+ REG_WRITE(ah, AR_PHY_AGC_CONTROL,
+ REG_READ(ah, AR_PHY_AGC_CONTROL) |
+@@ -753,10 +759,6 @@ static bool ar9003_hw_init_cal(struct at
+ return false;
+ }
+
+- /* Do Tx IQ Calibration */
+- if (ah->config.tx_iq_calibration)
+- ar9003_hw_tx_iq_cal(ah);
+-
+ /* Revert chainmasks to their original values before NF cal */
+ ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
+
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -16,7 +16,8 @@
-};
-
-#endif /* INITVALS_9003_H */
+--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+@@ -90,6 +90,8 @@ static bool ar9003_hw_get_isr(struct ath
+ MAP_ISR_S2_CST);
+ mask2 |= ((isr2 & AR_ISR_S2_TSFOOR) >>
+ MAP_ISR_S2_TSFOOR);
++ mask2 |= ((isr2 & AR_ISR_S2_BB_WATCHDOG) >>
++ MAP_ISR_S2_BB_WATCHDOG);
+
+ if (!(pCap->hw_caps & ATH9K_HW_CAP_RAC_SUPPORTED)) {
+ REG_WRITE(ah, AR_ISR_S2, isr2);
+@@ -167,6 +169,9 @@ static bool ar9003_hw_get_isr(struct ath
+
+ (void) REG_READ(ah, AR_ISR);
+ }
++
++ if (*masked & ATH9K_INT_BB_WATCHDOG)
++ ar9003_hw_bb_watchdog_read(ah);
+ }
+
+ if (sync_cause) {
+@@ -229,7 +234,8 @@ static void ar9003_hw_fill_txdesc(struct
+ }
+
+ static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
+- struct ath_tx_status *ts)
++ struct ath_tx_status *ts,
++ void *txs_desc)
+ {
+ struct ar9003_txs *ads;
+
+@@ -300,6 +306,7 @@ static int ar9003_hw_proc_txdesc(struct
+
+ ts->tid = MS(ads->status8, AR_TxTid);
+
++ memcpy(txs_desc, ads, sizeof(*ads));
+ memset(ads, 0, sizeof(*ads));
+
+ return 0;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.h
++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.h
+@@ -47,6 +47,7 @@
+ #define MAP_ISR_S2_DTIMSYNC 7
+ #define MAP_ISR_S2_DTIM 7
+ #define MAP_ISR_S2_TSFOOR 4
++#define MAP_ISR_S2_BB_WATCHDOG 6
+
+ #define AR9003TXC_CONST(_ds) ((const struct ar9003_txc *) _ds)
+
+--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+@@ -1132,3 +1132,122 @@ void ar9003_hw_attach_phy_ops(struct ath
+ priv_ops->do_getnf = ar9003_hw_do_getnf;
+ priv_ops->loadnf = ar9003_hw_loadnf;
+ }
++
++void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
++{
++ struct ath_common *common = ath9k_hw_common(ah);
++ u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
++ u32 val, idle_count;
++
++ if (!idle_tmo_ms) {
++ /* disable IRQ, disable chip-reset for BB panic */
++ REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
++ REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
++ ~(AR_PHY_WATCHDOG_RST_ENABLE |
++ AR_PHY_WATCHDOG_IRQ_ENABLE));
++
++ /* disable watchdog in non-IDLE mode, disable in IDLE mode */
++ REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
++ REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
++ ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
++ AR_PHY_WATCHDOG_IDLE_ENABLE));
++
++ ath_print(common, ATH_DBG_RESET, "Disabled BB Watchdog\n");
++ return;
++ }
++
++ /* enable IRQ, disable chip-reset for BB watchdog */
++ val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
++ REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
++ (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
++ ~AR_PHY_WATCHDOG_RST_ENABLE);
++
++ /* bound limit to 10 secs */
++ if (idle_tmo_ms > 10000)
++ idle_tmo_ms = 10000;
++
++ /*
++ * The time unit for watchdog event is 2^15 44/88MHz cycles.
++ *
++ * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
++ * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
++ *
++ * Given we use fast clock now in 5 GHz, these time units should
++ * be common for both 2 GHz and 5 GHz.
++ */
++ idle_count = (100 * idle_tmo_ms) / 74;
++ if (ah->curchan && IS_CHAN_HT40(ah->curchan))
++ idle_count = (100 * idle_tmo_ms) / 37;
++
++ /*
++ * enable watchdog in non-IDLE mode, disable in IDLE mode,
++ * set idle time-out.
++ */
++ REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
++ AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
++ AR_PHY_WATCHDOG_IDLE_MASK |
++ (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));
++
++ ath_print(common, ATH_DBG_RESET,
++ "Enabled BB Watchdog timeout (%u ms)\n",
++ idle_tmo_ms);
++}
++
++void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
++{
++ /*
++ * we want to avoid printing in ISR context so we save the
++ * watchdog status to be printed later in bottom half context.
++ */
++ ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);
++
++ /*
++ * the watchdog timer should reset on status read but to be sure
++ * sure we write 0 to the watchdog status bit.
++ */
++ REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
++ ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
++}
++
++void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
++{
++ struct ath_common *common = ath9k_hw_common(ah);
++ u32 rxc_pcnt = 0, rxf_pcnt = 0, txf_pcnt = 0, status;
++
++ if (likely(!(common->debug_mask & ATH_DBG_RESET)))
++ return;
++
++ status = ah->bb_watchdog_last_status;
++ ath_print(common, ATH_DBG_RESET,
++ "\n==== BB update: BB status=0x%08x ====\n", status);
++ ath_print(common, ATH_DBG_RESET,
++ "** BB state: wd=%u det=%u rdar=%u rOFDM=%d "
++ "rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
++ MS(status, AR_PHY_WATCHDOG_INFO),
++ MS(status, AR_PHY_WATCHDOG_DET_HANG),
++ MS(status, AR_PHY_WATCHDOG_RADAR_SM),
++ MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
++ MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
++ MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
++ MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
++ MS(status, AR_PHY_WATCHDOG_AGC_SM),
++ MS(status,AR_PHY_WATCHDOG_SRCH_SM));
++
++ ath_print(common, ATH_DBG_RESET,
++ "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
++ REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
++ REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
++ ath_print(common, ATH_DBG_RESET,
++ "** BB mode: BB_gen_controls=0x%08x **\n",
++ REG_READ(ah, AR_PHY_GEN_CTRL));
++
++ if (ath9k_hw_GetMibCycleCountsPct(ah, &rxc_pcnt, &rxf_pcnt, &txf_pcnt))
++ ath_print(common, ATH_DBG_RESET,
++ "** BB busy times: rx_clear=%d%%, "
++ "rx_frame=%d%%, tx_frame=%d%% **\n",
++ rxc_pcnt, rxf_pcnt, txf_pcnt);
++
++ ath_print(common, ATH_DBG_RESET,
++ "==== BB update: done ====\n\n");
++}
++EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);
+--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
++++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+@@ -483,10 +483,10 @@
+ #define AR_PHY_TX_IQCAL_STATUS_B0 (AR_SM_BASE + 0x48c)
+ #define AR_PHY_TX_IQCAL_CORR_COEFF_01_B0 (AR_SM_BASE + 0x450)
+
+-#define AR_PHY_PANIC_WD_STATUS (AR_SM_BASE + 0x5c0)
+-#define AR_PHY_PANIC_WD_CTL_1 (AR_SM_BASE + 0x5c4)
+-#define AR_PHY_PANIC_WD_CTL_2 (AR_SM_BASE + 0x5c8)
+-#define AR_PHY_BT_CTL (AR_SM_BASE + 0x5cc)
++#define AR_PHY_WATCHDOG_STATUS (AR_SM_BASE + 0x5c0)
++#define AR_PHY_WATCHDOG_CTL_1 (AR_SM_BASE + 0x5c4)
++#define AR_PHY_WATCHDOG_CTL_2 (AR_SM_BASE + 0x5c8)
++#define AR_PHY_WATCHDOG_CTL (AR_SM_BASE + 0x5cc)
+ #define AR_PHY_ONLY_WARMRESET (AR_SM_BASE + 0x5d0)
+ #define AR_PHY_ONLY_CTL (AR_SM_BASE + 0x5d4)
+ #define AR_PHY_ECO_CTRL (AR_SM_BASE + 0x5dc)
+@@ -812,35 +812,35 @@
+ #define AR_PHY_CAL_MEAS_2_9300_10(_i) (AR_PHY_IQ_ADC_MEAS_2_B0_9300_10 + (AR_PHY_CHAIN_OFFSET * (_i)))
+ #define AR_PHY_CAL_MEAS_3_9300_10(_i) (AR_PHY_IQ_ADC_MEAS_3_B0_9300_10 + (AR_PHY_CHAIN_OFFSET * (_i)))
+
+-#define AR_PHY_BB_PANIC_NON_IDLE_ENABLE 0x00000001
+-#define AR_PHY_BB_PANIC_IDLE_ENABLE 0x00000002
+-#define AR_PHY_BB_PANIC_IDLE_MASK 0xFFFF0000
+-#define AR_PHY_BB_PANIC_NON_IDLE_MASK 0x0000FFFC
+-
+-#define AR_PHY_BB_PANIC_RST_ENABLE 0x00000002
+-#define AR_PHY_BB_PANIC_IRQ_ENABLE 0x00000004
+-#define AR_PHY_BB_PANIC_CNTL2_MASK 0xFFFFFFF9
+-
+-#define AR_PHY_BB_WD_STATUS 0x00000007
+-#define AR_PHY_BB_WD_STATUS_S 0
+-#define AR_PHY_BB_WD_DET_HANG 0x00000008
+-#define AR_PHY_BB_WD_DET_HANG_S 3
+-#define AR_PHY_BB_WD_RADAR_SM 0x000000F0
+-#define AR_PHY_BB_WD_RADAR_SM_S 4
+-#define AR_PHY_BB_WD_RX_OFDM_SM 0x00000F00
+-#define AR_PHY_BB_WD_RX_OFDM_SM_S 8
+-#define AR_PHY_BB_WD_RX_CCK_SM 0x0000F000
+-#define AR_PHY_BB_WD_RX_CCK_SM_S 12
+-#define AR_PHY_BB_WD_TX_OFDM_SM 0x000F0000
+-#define AR_PHY_BB_WD_TX_OFDM_SM_S 16
+-#define AR_PHY_BB_WD_TX_CCK_SM 0x00F00000
+-#define AR_PHY_BB_WD_TX_CCK_SM_S 20
+-#define AR_PHY_BB_WD_AGC_SM 0x0F000000
+-#define AR_PHY_BB_WD_AGC_SM_S 24
+-#define AR_PHY_BB_WD_SRCH_SM 0xF0000000
+-#define AR_PHY_BB_WD_SRCH_SM_S 28
++#define AR_PHY_WATCHDOG_NON_IDLE_ENABLE 0x00000001
++#define AR_PHY_WATCHDOG_IDLE_ENABLE 0x00000002
++#define AR_PHY_WATCHDOG_IDLE_MASK 0xFFFF0000
++#define AR_PHY_WATCHDOG_NON_IDLE_MASK 0x0000FFFC
++
++#define AR_PHY_WATCHDOG_RST_ENABLE 0x00000002
++#define AR_PHY_WATCHDOG_IRQ_ENABLE 0x00000004
++#define AR_PHY_WATCHDOG_CNTL2_MASK 0xFFFFFFF9
++
++#define AR_PHY_WATCHDOG_INFO 0x00000007
++#define AR_PHY_WATCHDOG_INFO_S 0
++#define AR_PHY_WATCHDOG_DET_HANG 0x00000008
++#define AR_PHY_WATCHDOG_DET_HANG_S 3
++#define AR_PHY_WATCHDOG_RADAR_SM 0x000000F0
++#define AR_PHY_WATCHDOG_RADAR_SM_S 4
++#define AR_PHY_WATCHDOG_RX_OFDM_SM 0x00000F00
++#define AR_PHY_WATCHDOG_RX_OFDM_SM_S 8
++#define AR_PHY_WATCHDOG_RX_CCK_SM 0x0000F000
++#define AR_PHY_WATCHDOG_RX_CCK_SM_S 12
++#define AR_PHY_WATCHDOG_TX_OFDM_SM 0x000F0000
++#define AR_PHY_WATCHDOG_TX_OFDM_SM_S 16
++#define AR_PHY_WATCHDOG_TX_CCK_SM 0x00F00000
++#define AR_PHY_WATCHDOG_TX_CCK_SM_S 20
++#define AR_PHY_WATCHDOG_AGC_SM 0x0F000000
++#define AR_PHY_WATCHDOG_AGC_SM_S 24
++#define AR_PHY_WATCHDOG_SRCH_SM 0xF0000000
++#define AR_PHY_WATCHDOG_SRCH_SM_S 28
+
+-#define AR_PHY_BB_WD_STATUS_CLR 0x00000008
++#define AR_PHY_WATCHDOG_STATUS_CLR 0x00000008
+
+ void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx);
+
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -23,6 +23,7 @@
+
+ #include "debug.h"
+ #include "common.h"
++#include "pktlog.h"
+
+ /*
+ * Header for the ath9k.ko driver core *only* -- hw code nor any other driver
+@@ -206,6 +207,69 @@ struct ath_txq {
+ u8 txq_tailidx;
+ };
+
++struct ath_atx_ac {
++ int sched;
++ int qnum;
++ struct list_head list;
++ struct list_head tid_q;
++};
++
++struct ath_buf_state {
++ int bfs_nframes;
++ u16 bfs_al;
++ u16 bfs_frmlen;
++ int bfs_seqno;
++ int bfs_tidno;
++ int bfs_retries;
++ u8 bf_type;
++ u32 bfs_keyix;
++ enum ath9k_key_type bfs_keytype;
++};
++
++struct ath_buf {
++ struct list_head list;
++ struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
++ an aggregate) */
++ struct ath_buf *bf_next; /* next subframe in the aggregate */
++ struct sk_buff *bf_mpdu; /* enclosing frame structure */
++ void *bf_desc; /* virtual addr of desc */
++ dma_addr_t bf_daddr; /* physical addr of desc */
++ dma_addr_t bf_buf_addr; /* physical addr of data buffer */
++ bool bf_stale;
++ bool bf_isnullfunc;
++ bool bf_tx_aborted;
++ u16 bf_flags;
++ struct ath_buf_state bf_state;
++ dma_addr_t bf_dmacontext;
++ struct ath_wiphy *aphy;
++};
++
++struct ath_atx_tid {
++ struct list_head list;
++ struct list_head buf_q;
++ struct ath_node *an;
++ struct ath_atx_ac *ac;
++ struct ath_buf *tx_buf[ATH_TID_MAX_BUFS];
++ u16 seq_start;
++ u16 seq_next;
++ u16 baw_size;
++ int tidno;
++ int baw_head; /* first un-acked tx buffer */
++ int baw_tail; /* next unused tx buffer slot */
++ int sched;
++ int paused;
++ u8 state;
++};
++
++struct ath_node {
++ struct ath_common *common;
++ struct ath_atx_tid tid[WME_NUM_TID];
++ struct ath_atx_ac ac[WME_NUM_AC];
++ u16 maxampdu;
++ u8 mpdudensity;
++ int last_rssi;
++};
++
+ #define AGGR_CLEANUP BIT(1)
+ #define AGGR_ADDBA_COMPLETE BIT(2)
+ #define AGGR_ADDBA_PROGRESS BIT(3)
+@@ -446,6 +510,7 @@ void ath_deinit_leds(struct ath_softc *s
+ #define SC_OP_TSF_RESET BIT(11)
+ #define SC_OP_BT_PRIORITY_DETECTED BIT(12)
+ #define SC_OP_BT_SCAN BIT(13)
++#define SC_OP_PKTLOGGING BIT(14)
+
+ /* Powersave flags */
+ #define PS_WAIT_FOR_BEACON BIT(0)
+@@ -523,6 +588,10 @@ struct ath_softc {
+ #ifdef CONFIG_ATH9K_DEBUGFS
+ struct ath9k_debug debug;
+ #endif
++#ifdef CONFIG_ATH9K_PKTLOG
++ struct ath_pktlog_debugfs pktlog;
++#endif
++ bool is_pkt_logging;
+ struct ath_beacon_config cur_beacon_conf;
+ struct delayed_work tx_complete_work;
+ struct ath_btcoex btcoex;
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -76,22 +76,13 @@ static void ath_beacon_setup(struct ath_
}
void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
---- a/net/mac80211/Kconfig
-+++ b/net/mac80211/Kconfig
-@@ -33,6 +33,13 @@ config MAC80211_RC_MINSTREL
- ---help---
- This option enables the 'minstrel' TX rate control algorithm
-
-+config MAC80211_RC_MINSTREL_HT
-+ bool "Minstrel 802.11n support" if EMBEDDED
-+ depends on MAC80211_RC_MINSTREL
-+ default y
-+ ---help---
-+ This option enables the 'minstrel_ht' TX rate control algorithm
-+
- choice
- prompt "Default rate control algorithm"
- depends on MAC80211_HAS_RC
---- a/net/mac80211/Makefile
-+++ b/net/mac80211/Makefile
-@@ -51,7 +51,11 @@ rc80211_pid-$(CONFIG_MAC80211_DEBUGFS) +
- rc80211_minstrel-y := rc80211_minstrel.o
- rc80211_minstrel-$(CONFIG_MAC80211_DEBUGFS) += rc80211_minstrel_debugfs.o
-
-+rc80211_minstrel_ht-y := rc80211_minstrel_ht.o
-+rc80211_minstrel_ht-$(CONFIG_MAC80211_DEBUGFS) += rc80211_minstrel_ht_debugfs.o
-+
- mac80211-$(CONFIG_MAC80211_RC_PID) += $(rc80211_pid-y)
- mac80211-$(CONFIG_MAC80211_RC_MINSTREL) += $(rc80211_minstrel-y)
-+mac80211-$(CONFIG_MAC80211_RC_MINSTREL_HT) += $(rc80211_minstrel_ht-y)
+--- a/drivers/net/wireless/ath/ath9k/common.c
++++ b/drivers/net/wireless/ath/ath9k/common.c
+@@ -27,270 +27,6 @@ MODULE_AUTHOR("Atheros Communications");
+ MODULE_DESCRIPTION("Shared library for Atheros wireless 802.11n LAN cards.");
+ MODULE_LICENSE("Dual BSD/GPL");
- ccflags-y += -D__CHECK_ENDIAN__
---- a/net/mac80211/main.c
-+++ b/net/mac80211/main.c
-@@ -701,6 +701,10 @@ static int __init ieee80211_init(void)
- if (ret)
- return ret;
+-/* Common RX processing */
+-
+-/* Assumes you've already done the endian to CPU conversion */
+-static bool ath9k_rx_accept(struct ath_common *common,
+- struct sk_buff *skb,
+- struct ieee80211_rx_status *rxs,
+- struct ath_rx_status *rx_stats,
+- bool *decrypt_error)
+-{
+- struct ath_hw *ah = common->ah;
+- struct ieee80211_hdr *hdr;
+- __le16 fc;
+-
+- hdr = (struct ieee80211_hdr *) skb->data;
+- fc = hdr->frame_control;
+-
+- if (!rx_stats->rs_datalen)
+- return false;
+- /*
+- * rs_status follows rs_datalen so if rs_datalen is too large
+- * we can take a hint that hardware corrupted it, so ignore
+- * those frames.
+- */
+- if (rx_stats->rs_datalen > common->rx_bufsize)
+- return false;
+-
+- /*
+- * rs_more indicates chained descriptors which can be used
+- * to link buffers together for a sort of scatter-gather
+- * operation.
+- * reject the frame, we don't support scatter-gather yet and
+- * the frame is probably corrupt anyway
+- */
+- if (rx_stats->rs_more)
+- return false;
+-
+- /*
+- * The rx_stats->rs_status will not be set until the end of the
+- * chained descriptors so it can be ignored if rs_more is set. The
+- * rs_more will be false at the last element of the chained
+- * descriptors.
+- */
+- if (rx_stats->rs_status != 0) {
+- if (rx_stats->rs_status & ATH9K_RXERR_CRC)
+- rxs->flag |= RX_FLAG_FAILED_FCS_CRC;
+- if (rx_stats->rs_status & ATH9K_RXERR_PHY)
+- return false;
+-
+- if (rx_stats->rs_status & ATH9K_RXERR_DECRYPT) {
+- *decrypt_error = true;
+- } else if (rx_stats->rs_status & ATH9K_RXERR_MIC) {
+- if (ieee80211_is_ctl(fc))
+- /*
+- * Sometimes, we get invalid
+- * MIC failures on valid control frames.
+- * Remove these mic errors.
+- */
+- rx_stats->rs_status &= ~ATH9K_RXERR_MIC;
+- else
+- rxs->flag |= RX_FLAG_MMIC_ERROR;
+- }
+- /*
+- * Reject error frames with the exception of
+- * decryption and MIC failures. For monitor mode,
+- * we also ignore the CRC error.
+- */
+- if (ah->opmode == NL80211_IFTYPE_MONITOR) {
+- if (rx_stats->rs_status &
+- ~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC |
+- ATH9K_RXERR_CRC))
+- return false;
+- } else {
+- if (rx_stats->rs_status &
+- ~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC)) {
+- return false;
+- }
+- }
+- }
+- return true;
+-}
+-
+-static int ath9k_process_rate(struct ath_common *common,
+- struct ieee80211_hw *hw,
+- struct ath_rx_status *rx_stats,
+- struct ieee80211_rx_status *rxs,
+- struct sk_buff *skb)
+-{
+- struct ieee80211_supported_band *sband;
+- enum ieee80211_band band;
+- unsigned int i = 0;
+-
+- band = hw->conf.channel->band;
+- sband = hw->wiphy->bands[band];
+-
+- if (rx_stats->rs_rate & 0x80) {
+- /* HT rate */
+- rxs->flag |= RX_FLAG_HT;
+- if (rx_stats->rs_flags & ATH9K_RX_2040)
+- rxs->flag |= RX_FLAG_40MHZ;
+- if (rx_stats->rs_flags & ATH9K_RX_GI)
+- rxs->flag |= RX_FLAG_SHORT_GI;
+- rxs->rate_idx = rx_stats->rs_rate & 0x7f;
+- return 0;
+- }
+-
+- for (i = 0; i < sband->n_bitrates; i++) {
+- if (sband->bitrates[i].hw_value == rx_stats->rs_rate) {
+- rxs->rate_idx = i;
+- return 0;
+- }
+- if (sband->bitrates[i].hw_value_short == rx_stats->rs_rate) {
+- rxs->flag |= RX_FLAG_SHORTPRE;
+- rxs->rate_idx = i;
+- return 0;
+- }
+- }
+-
+- /*
+- * No valid hardware bitrate found -- we should not get here
+- * because hardware has already validated this frame as OK.
+- */
+- ath_print(common, ATH_DBG_XMIT, "unsupported hw bitrate detected "
+- "0x%02x using 1 Mbit\n", rx_stats->rs_rate);
+- if ((common->debug_mask & ATH_DBG_XMIT))
+- print_hex_dump_bytes("", DUMP_PREFIX_NONE, skb->data, skb->len);
+-
+- return -EINVAL;
+-}
+-
+-static void ath9k_process_rssi(struct ath_common *common,
+- struct ieee80211_hw *hw,
+- struct sk_buff *skb,
+- struct ath_rx_status *rx_stats)
+-{
+- struct ath_hw *ah = common->ah;
+- struct ieee80211_sta *sta;
+- struct ieee80211_hdr *hdr;
+- struct ath_node *an;
+- int last_rssi = ATH_RSSI_DUMMY_MARKER;
+- __le16 fc;
+-
+- hdr = (struct ieee80211_hdr *)skb->data;
+- fc = hdr->frame_control;
+-
+- rcu_read_lock();
+- /*
+- * XXX: use ieee80211_find_sta! This requires quite a bit of work
+- * under the current ath9k virtual wiphy implementation as we have
+- * no way of tying a vif to wiphy. Typically vifs are attached to
+- * at least one sdata of a wiphy on mac80211 but with ath9k virtual
+- * wiphy you'd have to iterate over every wiphy and each sdata.
+- */
+- sta = ieee80211_find_sta_by_hw(hw, hdr->addr2);
+- if (sta) {
+- an = (struct ath_node *) sta->drv_priv;
+- if (rx_stats->rs_rssi != ATH9K_RSSI_BAD &&
+- !rx_stats->rs_moreaggr)
+- ATH_RSSI_LPF(an->last_rssi, rx_stats->rs_rssi);
+- last_rssi = an->last_rssi;
+- }
+- rcu_read_unlock();
+-
+- if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
+- rx_stats->rs_rssi = ATH_EP_RND(last_rssi,
+- ATH_RSSI_EP_MULTIPLIER);
+- if (rx_stats->rs_rssi < 0)
+- rx_stats->rs_rssi = 0;
+-
+- /* Update Beacon RSSI, this is used by ANI. */
+- if (ieee80211_is_beacon(fc))
+- ah->stats.avgbrssi = rx_stats->rs_rssi;
+-}
+-
+-/*
+- * For Decrypt or Demic errors, we only mark packet status here and always push
+- * up the frame up to let mac80211 handle the actual error case, be it no
+- * decryption key or real decryption error. This let us keep statistics there.
+- */
+-int ath9k_cmn_rx_skb_preprocess(struct ath_common *common,
+- struct ieee80211_hw *hw,
+- struct sk_buff *skb,
+- struct ath_rx_status *rx_stats,
+- struct ieee80211_rx_status *rx_status,
+- bool *decrypt_error)
+-{
+- struct ath_hw *ah = common->ah;
+-
+- memset(rx_status, 0, sizeof(struct ieee80211_rx_status));
+-
+- /*
+- * everything but the rate is checked here, the rate check is done
+- * separately to avoid doing two lookups for a rate for each frame.
+- */
+- if (!ath9k_rx_accept(common, skb, rx_status, rx_stats, decrypt_error))
+- return -EINVAL;
+-
+- ath9k_process_rssi(common, hw, skb, rx_stats);
+-
+- if (ath9k_process_rate(common, hw, rx_stats, rx_status, skb))
+- return -EINVAL;
+-
+- rx_status->mactime = ath9k_hw_extend_tsf(ah, rx_stats->rs_tstamp);
+- rx_status->band = hw->conf.channel->band;
+- rx_status->freq = hw->conf.channel->center_freq;
+- rx_status->signal = ATH_DEFAULT_NOISE_FLOOR + rx_stats->rs_rssi;
+- rx_status->antenna = rx_stats->rs_antenna;
+- rx_status->flag |= RX_FLAG_TSFT;
+-
+- return 0;
+-}
+-EXPORT_SYMBOL(ath9k_cmn_rx_skb_preprocess);
+-
+-void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,
+- struct sk_buff *skb,
+- struct ath_rx_status *rx_stats,
+- struct ieee80211_rx_status *rxs,
+- bool decrypt_error)
+-{
+- struct ath_hw *ah = common->ah;
+- struct ieee80211_hdr *hdr;
+- int hdrlen, padpos, padsize;
+- u8 keyix;
+- __le16 fc;
+-
+- /* see if any padding is done by the hw and remove it */
+- hdr = (struct ieee80211_hdr *) skb->data;
+- hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+- fc = hdr->frame_control;
+- padpos = ath9k_cmn_padpos(hdr->frame_control);
+-
+- /* The MAC header is padded to have 32-bit boundary if the
+- * packet payload is non-zero. The general calculation for
+- * padsize would take into account odd header lengths:
+- * padsize = (4 - padpos % 4) % 4; However, since only
+- * even-length headers are used, padding can only be 0 or 2
+- * bytes and we can optimize this a bit. In addition, we must
+- * not try to remove padding from short control frames that do
+- * not have payload. */
+- padsize = padpos & 3;
+- if (padsize && skb->len>=padpos+padsize+FCS_LEN) {
+- memmove(skb->data + padsize, skb->data, padpos);
+- skb_pull(skb, padsize);
+- }
+-
+- keyix = rx_stats->rs_keyix;
+-
+- if (!(keyix == ATH9K_RXKEYIX_INVALID) && !decrypt_error &&
+- ieee80211_has_protected(fc)) {
+- rxs->flag |= RX_FLAG_DECRYPTED;
+- } else if (ieee80211_has_protected(fc)
+- && !decrypt_error && skb->len >= hdrlen + 4) {
+- keyix = skb->data[hdrlen + 3] >> 6;
+-
+- if (test_bit(keyix, common->keymap))
+- rxs->flag |= RX_FLAG_DECRYPTED;
+- }
+- if (ah->sw_mgmt_crypto &&
+- (rxs->flag & RX_FLAG_DECRYPTED) &&
+- ieee80211_is_mgmt(fc))
+- /* Use software decrypt for management frames. */
+- rxs->flag &= ~RX_FLAG_DECRYPTED;
+-}
+-EXPORT_SYMBOL(ath9k_cmn_rx_skb_postprocess);
+-
+ int ath9k_cmn_padpos(__le16 frame_control)
+ {
+ int padpos = 24;
+--- a/drivers/net/wireless/ath/ath9k/common.h
++++ b/drivers/net/wireless/ath/ath9k/common.h
+@@ -52,82 +52,6 @@
+ #define ATH_EP_RND(x, mul) \
+ ((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
-+ ret = rc80211_minstrel_ht_init();
-+ if (ret)
-+ goto err_minstrel;
-+
- ret = rc80211_pid_init();
- if (ret)
- goto err_pid;
-@@ -713,6 +717,8 @@ static int __init ieee80211_init(void)
- err_netdev:
- rc80211_pid_exit();
- err_pid:
-+ rc80211_minstrel_ht_exit();
-+ err_minstrel:
- rc80211_minstrel_exit();
+-struct ath_atx_ac {
+- int sched;
+- int qnum;
+- struct list_head list;
+- struct list_head tid_q;
+-};
+-
+-struct ath_buf_state {
+- int bfs_nframes;
+- u16 bfs_al;
+- u16 bfs_frmlen;
+- int bfs_seqno;
+- int bfs_tidno;
+- int bfs_retries;
+- u8 bf_type;
+- u32 bfs_keyix;
+- enum ath9k_key_type bfs_keytype;
+-};
+-
+-struct ath_buf {
+- struct list_head list;
+- struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
+- an aggregate) */
+- struct ath_buf *bf_next; /* next subframe in the aggregate */
+- struct sk_buff *bf_mpdu; /* enclosing frame structure */
+- void *bf_desc; /* virtual addr of desc */
+- dma_addr_t bf_daddr; /* physical addr of desc */
+- dma_addr_t bf_buf_addr; /* physical addr of data buffer */
+- bool bf_stale;
+- bool bf_isnullfunc;
+- bool bf_tx_aborted;
+- u16 bf_flags;
+- struct ath_buf_state bf_state;
+- dma_addr_t bf_dmacontext;
+- struct ath_wiphy *aphy;
+-};
+-
+-struct ath_atx_tid {
+- struct list_head list;
+- struct list_head buf_q;
+- struct ath_node *an;
+- struct ath_atx_ac *ac;
+- struct ath_buf *tx_buf[ATH_TID_MAX_BUFS];
+- u16 seq_start;
+- u16 seq_next;
+- u16 baw_size;
+- int tidno;
+- int baw_head; /* first un-acked tx buffer */
+- int baw_tail; /* next unused tx buffer slot */
+- int sched;
+- int paused;
+- u8 state;
+-};
+-
+-struct ath_node {
+- struct ath_common *common;
+- struct ath_atx_tid tid[WME_NUM_TID];
+- struct ath_atx_ac ac[WME_NUM_AC];
+- u16 maxampdu;
+- u8 mpdudensity;
+- int last_rssi;
+-};
+-
+-int ath9k_cmn_rx_skb_preprocess(struct ath_common *common,
+- struct ieee80211_hw *hw,
+- struct sk_buff *skb,
+- struct ath_rx_status *rx_stats,
+- struct ieee80211_rx_status *rx_status,
+- bool *decrypt_error);
+-
+-void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,
+- struct sk_buff *skb,
+- struct ath_rx_status *rx_stats,
+- struct ieee80211_rx_status *rxs,
+- bool decrypt_error);
+-
+ int ath9k_cmn_padpos(__le16 frame_control);
+ int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
+ void ath9k_cmn_update_ichannel(struct ieee80211_hw *hw,
+--- a/drivers/net/wireless/ath/ath9k/debug.c
++++ b/drivers/net/wireless/ath/ath9k/debug.c
+@@ -15,6 +15,7 @@
+ */
- return ret;
-@@ -721,6 +727,7 @@ static int __init ieee80211_init(void)
- static void __exit ieee80211_exit(void)
- {
- rc80211_pid_exit();
-+ rc80211_minstrel_ht_exit();
- rc80211_minstrel_exit();
+ #include <linux/slab.h>
++#include <linux/vmalloc.h>
+ #include <asm/unaligned.h>
- /*
---- a/net/mac80211/rate.h
-+++ b/net/mac80211/rate.h
-@@ -147,5 +147,18 @@ static inline void rc80211_minstrel_exit
+ #include "ath9k.h"
+@@ -32,6 +33,19 @@ static int ath9k_debugfs_open(struct ino
+ return 0;
}
- #endif
-+#ifdef CONFIG_MAC80211_RC_MINSTREL_HT
-+extern int rc80211_minstrel_ht_init(void);
-+extern void rc80211_minstrel_ht_exit(void);
-+#else
-+static inline int rc80211_minstrel_ht_init(void)
++static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
++ size_t count, loff_t *ppos)
+{
-+ return 0;
++ u8 *buf = file->private_data;
++ return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
+}
-+static inline void rc80211_minstrel_ht_exit(void)
++
++static int ath9k_debugfs_release_buf (struct inode *inode, struct file *file)
+{
++ vfree(file->private_data);
++ return 0;
+}
-+#endif
+
+ #ifdef CONFIG_ATH_DEBUG
- #endif /* IEEE80211_RATE_H */
---- /dev/null
-+++ b/net/mac80211/rc80211_minstrel_ht.c
-@@ -0,0 +1,824 @@
-+/*
-+ * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+#include <linux/netdevice.h>
-+#include <linux/types.h>
-+#include <linux/skbuff.h>
-+#include <linux/debugfs.h>
-+#include <linux/random.h>
-+#include <linux/ieee80211.h>
-+#include <net/mac80211.h>
-+#include "rate.h"
-+#include "rc80211_minstrel.h"
-+#include "rc80211_minstrel_ht.h"
+ static ssize_t read_file_debug(struct file *file, char __user *user_buf,
+@@ -269,6 +283,8 @@ void ath_debug_stat_interrupt(struct ath
+ sc->debug.stats.istats.rxlp++;
+ if (status & ATH9K_INT_RXHP)
+ sc->debug.stats.istats.rxhp++;
++ if (status & ATH9K_INT_BB_WATCHDOG)
++ sc->debug.stats.istats.bb_watchdog++;
+ } else {
+ if (status & ATH9K_INT_RX)
+ sc->debug.stats.istats.rxok++;
+@@ -319,6 +335,9 @@ static ssize_t read_file_interrupt(struc
+ "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
+ len += snprintf(buf + len, sizeof(buf) - len,
+ "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
++ len += snprintf(buf + len, sizeof(buf) - len,
++ "%8s: %10u\n", "WATCHDOG",
++ sc->debug.stats.istats.bb_watchdog);
+ } else {
+ len += snprintf(buf + len, sizeof(buf) - len,
+ "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
+@@ -871,7 +890,38 @@ static ssize_t write_file_regval(struct
+ static const struct file_operations fops_regval = {
+ .read = read_file_regval,
+ .write = write_file_regval,
+- .open = ath9k_debugfs_open,
++};
+
-+#define AVG_PKT_SIZE 1200
-+#define SAMPLE_COLUMNS 10
-+#define EWMA_LEVEL 75
++#define REGDUMP_LINE_SIZE 20
++#define REGDUMP_NUM_REGS (0x16bd4 / 4 + 1)
++#define REGDUMP_DATA_LEN (REGDUMP_NUM_REGS * REGDUMP_LINE_SIZE + 1)
+
-+/* Number of bits for an average sized packet */
-+#define MCS_NBITS (AVG_PKT_SIZE << 3)
++static int open_file_regdump(struct inode *inode, struct file *file)
++{
++ struct ath_softc *sc = inode->i_private;
++ unsigned int len = 0;
++ u8 *buf;
++ int i;
+
-+/* Number of symbols for a packet with (bps) bits per symbol */
-+#define MCS_NSYMS(bps) ((MCS_NBITS + (bps) - 1) / (bps))
++ buf = vmalloc(REGDUMP_DATA_LEN);
++ if (!buf)
++ return -ENOMEM;
+
-+/* Transmission time for a packet containing (syms) symbols */
-+#define MCS_SYMBOL_TIME(sgi, syms) \
-+ (sgi ? \
-+ ((syms) * 18 + 4) / 5 : /* syms * 3.6 us */ \
-+ (syms) << 2 /* syms * 4 us */ \
-+ )
++ ath9k_ps_wakeup(sc);
++ for (i = 0; i < REGDUMP_NUM_REGS; i++)
++ len += scnprintf(buf + len, REGDUMP_DATA_LEN - len,
++ "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
++ ath9k_ps_restore(sc);
+
-+/* Transmit duration for the raw data part of an average sized packet */
-+#define MCS_DURATION(streams, sgi, bps) MCS_SYMBOL_TIME(sgi, MCS_NSYMS((streams) * (bps)))
++ file->private_data = buf;
+
-+/* MCS rate information for an MCS group */
-+#define MCS_GROUP(_streams, _sgi, _ht40) { \
-+ .streams = _streams, \
-+ .flags = \
++ return 0;
++}
++
++static const struct file_operations fops_regdump = {
++ .open = open_file_regdump,
++ .read = ath9k_debugfs_read_buf,
++ .release = ath9k_debugfs_release_buf,
+ .owner = THIS_MODULE
+ };
+
+@@ -935,6 +985,16 @@ int ath9k_init_debug(struct ath_hw *ah)
+ goto err;
+
+ sc->debug.regidx = 0;
++
++ if (!debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy,
++ sc, &fops_regdump))
++ goto err;
++
++#ifdef CONFIG_ATH9K_PKTLOG
++ if (ath9k_init_pktlog(sc) != 0)
++ goto err;
++#endif
++
+ return 0;
+ err:
+ ath9k_exit_debug(ah);
+@@ -946,6 +1006,10 @@ void ath9k_exit_debug(struct ath_hw *ah)
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath_softc *sc = (struct ath_softc *) common->priv;
+
++#ifdef CONFIG_ATH9K_PKTLOG
++ ath9k_deinit_pktlog(sc);
++#endif
++ debugfs_remove(sc->debug.debugfs_regdump);
+ debugfs_remove_recursive(sc->debug.debugfs_phy);
+ }
+
+--- a/drivers/net/wireless/ath/ath9k/debug.h
++++ b/drivers/net/wireless/ath/ath9k/debug.h
+@@ -53,6 +53,7 @@ struct ath_buf;
+ * @cabend: RX End of CAB traffic
+ * @dtimsync: DTIM sync lossage
+ * @dtim: RX Beacon with DTIM
++ * @bb_watchdog: Baseband watchdog
+ */
+ struct ath_interrupt_stats {
+ u32 total;
+@@ -76,6 +77,7 @@ struct ath_interrupt_stats {
+ u32 cabend;
+ u32 dtimsync;
+ u32 dtim;
++ u32 bb_watchdog;
+ };
+
+ struct ath_rc_stats {
+@@ -154,6 +156,14 @@ struct ath_stats {
+ struct ath9k_debug {
+ struct dentry *debugfs_phy;
+ u32 regidx;
++ struct dentry *debugfs_debug;
++ struct dentry *debugfs_dma;
++ struct dentry *debugfs_interrupt;
++ struct dentry *debugfs_rcstat;
++ struct dentry *debugfs_wiphy;
++ struct dentry *debugfs_xmit;
++ struct dentry *debugfs_recv;
++ struct dentry *debugfs_regdump;
+ struct ath_stats stats;
+ };
+
+--- a/drivers/net/wireless/ath/ath9k/hw-ops.h
++++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
+@@ -67,9 +67,10 @@ static inline void ath9k_hw_filltxdesc(s
+ }
+
+ static inline int ath9k_hw_txprocdesc(struct ath_hw *ah, void *ds,
+- struct ath_tx_status *ts)
++ struct ath_tx_status *ts,
++ void *txs_desc)
+ {
+- return ath9k_hw_ops(ah)->proc_txdesc(ah, ds, ts);
++ return ath9k_hw_ops(ah)->proc_txdesc(ah, ds, ts, txs_desc);
+ }
+
+ static inline void ath9k_hw_set11n_txdesc(struct ath_hw *ah, void *ds,
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -395,12 +395,6 @@ static void ath9k_hw_init_config(struct
+ ah->config.rx_intr_mitigation = true;
+
+ /*
+- * Tx IQ Calibration (ah->config.tx_iq_calibration) is only
+- * used by AR9003, but it is showing reliability issues.
+- * It will take a while to fix so this is currently disabled.
+- */
+-
+- /*
+ * We need this for PCI devices only (Cardbus, PCI, miniPCI)
+ * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
+ * This means we use it for all AR5416 devices, and the few
+@@ -639,6 +633,7 @@ static int __ath9k_hw_init(struct ath_hw
+ ar9003_hw_set_nf_limits(ah);
+
+ ath9k_init_nfcal_hist_buffer(ah);
++ ah->bb_watchdog_timeout_ms = 25;
+
+ common->state = ATH_HW_INITIALIZED;
+
+@@ -1453,6 +1448,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ ath9k_hw_loadnf(ah, curchan);
+ ath9k_hw_start_nfcal(ah);
++ ar9003_hw_bb_watchdog_config(ah);
+ }
+
+ return 0;
+@@ -2177,7 +2173,7 @@ int ath9k_hw_fill_cap_info(struct ath_hw
+ pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
+ }
+ #endif
+- if (AR_SREV_9271(ah))
++ if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
+ else
+ pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
+@@ -2244,6 +2240,9 @@ int ath9k_hw_fill_cap_info(struct ath_hw
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
+
++ if (AR_SREV_9287_10_OR_LATER(ah))
++ pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
++
+ return 0;
+ }
+
+@@ -2478,7 +2477,7 @@ void ath9k_hw_setrxfilter(struct ath_hw
+ phybits |= AR_PHY_ERR_RADAR;
+ if (bits & ATH9K_RX_FILTER_PHYERR)
+ phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
+- REG_WRITE(ah, AR_PHY_ERR, phybits);
++ REG_WRITE(ah, AR_PHY_ERR, 0xffffffff);
+
+ if (phybits)
+ REG_WRITE(ah, AR_RXCFG,
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -199,6 +199,7 @@ enum ath9k_hw_caps {
+ ATH9K_HW_CAP_RAC_SUPPORTED = BIT(18),
+ ATH9K_HW_CAP_LDPC = BIT(19),
+ ATH9K_HW_CAP_FASTCLOCK = BIT(20),
++ ATH9K_HW_CAP_SGI_20 = BIT(21),
+ };
+
+ enum ath9k_capability_type {
+@@ -262,7 +263,6 @@ struct ath9k_ops_config {
+ #define AR_BASE_FREQ_5GHZ 4900
+ #define AR_SPUR_FEEQ_BOUND_HT40 19
+ #define AR_SPUR_FEEQ_BOUND_HT20 10
+- bool tx_iq_calibration; /* Only available for >= AR9003 */
+ int spurmode;
+ u16 spurchans[AR_EEPROM_MODAL_SPURS][2];
+ u8 max_txtrig_level;
+@@ -279,6 +279,7 @@ enum ath9k_int {
+ ATH9K_INT_TX = 0x00000040,
+ ATH9K_INT_TXDESC = 0x00000080,
+ ATH9K_INT_TIM_TIMER = 0x00000100,
++ ATH9K_INT_BB_WATCHDOG = 0x00000400,
+ ATH9K_INT_TXURN = 0x00000800,
+ ATH9K_INT_MIB = 0x00001000,
+ ATH9K_INT_RXPHY = 0x00004000,
+@@ -581,7 +582,7 @@ struct ath_hw_ops {
+ const void *ds0, dma_addr_t buf_addr,
+ unsigned int qcu);
+ int (*proc_txdesc)(struct ath_hw *ah, void *ds,
+- struct ath_tx_status *ts);
++ struct ath_tx_status *ts, void* txs_desc);
+ void (*set11n_txdesc)(struct ath_hw *ah, void *ds,
+ u32 pktLen, enum ath9k_pkt_type type,
+ u32 txPower, u32 keyIx,
+@@ -789,6 +790,11 @@ struct ath_hw {
+ u32 ts_paddr_end;
+ u16 ts_tail;
+ u8 ts_size;
++
++ u32 bb_watchdog_last_status;
++ u32 bb_watchdog_timeout_ms; /* in ms, 0 to disable */
++
++ bool is_pkt_logging;
+ };
+
+ static inline struct ath_common *ath9k_hw_common(struct ath_hw *ah)
+@@ -910,10 +916,13 @@ void ar9002_hw_enable_async_fifo(struct
+ void ar9002_hw_enable_wep_aggregation(struct ath_hw *ah);
+
+ /*
+- * Code specifric to AR9003, we stuff these here to avoid callbacks
++ * Code specific to AR9003, we stuff these here to avoid callbacks
+ * for older families
+ */
+ void ar9003_hw_set_nf_limits(struct ath_hw *ah);
++void ar9003_hw_bb_watchdog_config(struct ath_hw *ah);
++void ar9003_hw_bb_watchdog_read(struct ath_hw *ah);
++void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah);
+
+ /* Hardware family op attach helpers */
+ void ar5008_hw_attach_phy_ops(struct ath_hw *ah);
+--- a/drivers/net/wireless/ath/ath9k/init.c
++++ b/drivers/net/wireless/ath/ath9k/init.c
+@@ -209,6 +209,9 @@ static void setup_ht_cap(struct ath_soft
+ if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_LDPC)
+ ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
+
++ if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
++ ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
++
+ ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
+ ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
+
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -521,6 +521,12 @@ irqreturn_t ath_isr(int irq, void *dev)
+ !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
+ goto chip_reset;
+
++ if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
++ (status & ATH9K_INT_BB_WATCHDOG)) {
++ ar9003_hw_bb_watchdog_dbg_info(ah);
++ goto chip_reset;
++ }
++
+ if (status & ATH9K_INT_SWBA)
+ tasklet_schedule(&sc->bcon_tasklet);
+
+@@ -1196,7 +1202,9 @@ static int ath9k_start(struct ieee80211_
+ ATH9K_INT_GLOBAL;
+
+ if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
+- ah->imask |= ATH9K_INT_RXHP | ATH9K_INT_RXLP;
++ ah->imask |= ATH9K_INT_RXHP |
++ ATH9K_INT_RXLP |
++ ATH9K_INT_BB_WATCHDOG;
+ else
+ ah->imask |= ATH9K_INT_RX;
+
+@@ -1275,7 +1283,8 @@ static int ath9k_tx(struct ieee80211_hw
+ * completed and if needed, also for RX of buffered frames.
+ */
+ ath9k_ps_wakeup(sc);
+- ath9k_hw_setrxabort(sc->sc_ah, 0);
++ if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
++ ath9k_hw_setrxabort(sc->sc_ah, 0);
+ if (ieee80211_is_pspoll(hdr->frame_control)) {
+ ath_print(common, ATH_DBG_PS,
+ "Sending PS-Poll to pick a buffered frame\n");
+@@ -1539,8 +1548,8 @@ void ath9k_enable_ps(struct ath_softc *s
+ ah->imask |= ATH9K_INT_TIM_TIMER;
+ ath9k_hw_set_interrupts(ah, ah->imask);
+ }
++ ath9k_hw_setrxabort(ah, 1);
+ }
+- ath9k_hw_setrxabort(ah, 1);
+ }
+
+ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
+--- a/drivers/net/wireless/ath/ath9k/pci.c
++++ b/drivers/net/wireless/ath/ath9k/pci.c
+@@ -29,6 +29,7 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_i
+ { PCI_VDEVICE(ATHEROS, 0x002C) }, /* PCI-E 802.11n bonded out */
+ { PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI */
+ { PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */
++ { PCI_VDEVICE(ATHEROS, 0x0030) }, /* PCI-E AR9300 */
+ { 0 }
+ };
+
+--- /dev/null
++++ b/drivers/net/wireless/ath/ath9k/pktlog.c
+@@ -0,0 +1,783 @@
++
++#include <linux/vmalloc.h>
++#include <linux/highmem.h>
++#include "ath9k.h"
++
++static int ath9k_debugfs_open(struct inode *inode, struct file *file)
++{
++ file->private_data = inode->i_private;
++ return 0;
++}
++
++static struct page *pktlog_virt_to_logical(void *addr)
++{
++ struct page *page;
++ unsigned long vpage = 0UL;
++
++ page = vmalloc_to_page(addr);
++ if (page) {
++ vpage = (unsigned long) page_address(page);
++ vpage |= ((unsigned long) addr & (PAGE_SIZE - 1));
++ }
++ return virt_to_page((void *) vpage);
++}
++
++static void ath_pktlog_release(struct ath_pktlog *pktlog)
++{
++ unsigned long page_cnt, vaddr;
++ struct page *page;
++
++ page_cnt =
++ ((sizeof(*(pktlog->pktlog_buf)) +
++ pktlog->pktlog_buf_size) / PAGE_SIZE) + 1;
++
++ for (vaddr = (unsigned long) (pktlog->pktlog_buf); vaddr <
++ (unsigned long) (pktlog->pktlog_buf) +
++ (page_cnt * PAGE_SIZE);
++ vaddr += PAGE_SIZE) {
++ page = pktlog_virt_to_logical((void *) vaddr);
++ clear_bit(PG_reserved, &page->flags);
++ }
++
++ vfree(pktlog->pktlog_buf);
++ pktlog->pktlog_buf = NULL;
++}
++
++static int ath_alloc_pktlog_buf(struct ath_softc *sc)
++{
++ u32 page_cnt;
++ unsigned long vaddr;
++ struct page *page;
++ struct ath_pktlog *pktlog = &sc->pktlog.pktlog;
++
++ if (pktlog->pktlog_buf_size == 0)
++ return -EINVAL;
++
++ page_cnt = (sizeof(*(pktlog->pktlog_buf)) +
++ pktlog->pktlog_buf_size) / PAGE_SIZE;
++
++ pktlog->pktlog_buf = vmalloc((page_cnt + 2) * PAGE_SIZE);
++ if (pktlog->pktlog_buf == NULL) {
++ printk(KERN_ERR "Failed to allocate memory for pktlog");
++ return -ENOMEM;
++ }
++
++ pktlog->pktlog_buf = (struct ath_pktlog_buf *)
++ (((unsigned long)
++ (pktlog->pktlog_buf)
++ + PAGE_SIZE - 1) & PAGE_MASK);
++
++ for (vaddr = (unsigned long) (pktlog->pktlog_buf);
++ vaddr < ((unsigned long) (pktlog->pktlog_buf)
++ + (page_cnt * PAGE_SIZE)); vaddr += PAGE_SIZE) {
++ page = pktlog_virt_to_logical((void *)vaddr);
++ set_bit(PG_reserved, &page->flags);
++ }
++
++ return 0;
++}
++
++static void ath_init_pktlog_buf(struct ath_pktlog *pktlog)
++{
++ pktlog->pktlog_buf->bufhdr.magic_num = PKTLOG_MAGIC_NUM;
++ pktlog->pktlog_buf->bufhdr.version = CUR_PKTLOG_VER;
++ pktlog->pktlog_buf->rd_offset = -1;
++ pktlog->pktlog_buf->wr_offset = 0;
++ if (pktlog->pktlog_filter == 0)
++ pktlog->pktlog_filter = ATH_PKTLOG_FILTER_DEFAULT;
++}
++
++static char *ath_pktlog_getbuf(struct ath_pktlog *pl_info,
++ u16 log_type, size_t log_size,
++ u32 flags)
++{
++ struct ath_pktlog_buf *log_buf;
++ struct ath_pktlog_hdr *log_hdr;
++ int32_t cur_wr_offset, buf_size;
++ char *log_ptr;
++
++ log_buf = pl_info->pktlog_buf;
++ buf_size = pl_info->pktlog_buf_size;
++
++ spin_lock_bh(&pl_info->pktlog_lock);
++ cur_wr_offset = log_buf->wr_offset;
++ /* Move read offset to the next entry if there is a buffer overlap */
++ if (log_buf->rd_offset >= 0) {
++ if ((cur_wr_offset <= log_buf->rd_offset)
++ && (cur_wr_offset +
++ sizeof(struct ath_pktlog_hdr)) >
++ log_buf->rd_offset)
++ PKTLOG_MOV_RD_IDX(log_buf->rd_offset, log_buf,
++ buf_size);
++ } else {
++ log_buf->rd_offset = cur_wr_offset;
++ }
++
++ log_hdr =
++ (struct ath_pktlog_hdr *) (log_buf->log_data + cur_wr_offset);
++ log_hdr->log_type = log_type;
++ log_hdr->flags = flags;
++ log_hdr->timestamp = jiffies;
++ log_hdr->size = (u16) log_size;
++
++ cur_wr_offset += sizeof(*log_hdr);
++
++ if ((buf_size - cur_wr_offset) < log_size) {
++ while ((cur_wr_offset <= log_buf->rd_offset)
++ && (log_buf->rd_offset < buf_size))
++ PKTLOG_MOV_RD_IDX(log_buf->rd_offset, log_buf,
++ buf_size);
++ cur_wr_offset = 0;
++ }
++
++ while ((cur_wr_offset <= log_buf->rd_offset)
++ && (cur_wr_offset + log_size) > log_buf->rd_offset)
++ PKTLOG_MOV_RD_IDX(log_buf->rd_offset, log_buf, buf_size);
++
++ log_ptr = &(log_buf->log_data[cur_wr_offset]);
++
++ cur_wr_offset += log_hdr->size;
++
++ log_buf->wr_offset =
++ ((buf_size - cur_wr_offset) >=
++ sizeof(struct ath_pktlog_hdr)) ? cur_wr_offset : 0;
++ spin_unlock_bh(&pl_info->pktlog_lock);
++
++ return log_ptr;
++}
++
++static void ath9k_hw_get_descinfo(struct ath_hw *ah, struct ath_desc_info *desc_info)
++{
++ desc_info->txctl_numwords = TXCTL_NUMWORDS(ah);
++ desc_info->txctl_offset = TXCTL_OFFSET(ah);
++ desc_info->txstatus_numwords = TXSTATUS_NUMWORDS(ah);
++ desc_info->txstatus_offset = TXSTATUS_OFFSET(ah);
++
++ desc_info->rxctl_numwords = RXCTL_NUMWORDS(ah);
++ desc_info->rxctl_offset = RXCTL_OFFSET(ah);
++ desc_info->rxstatus_numwords = RXSTATUS_NUMWORDS(ah);
++ desc_info->rxstatus_offset = RXSTATUS_OFFSET(ah);
++}
++
++static int pktlog_pgfault(struct vm_area_struct *vma, struct vm_fault *vmf)
++{
++ unsigned long address = (unsigned long) vmf->virtual_address;
++
++ if (address == 0UL)
++ return VM_FAULT_NOPAGE;
++
++ if (vmf->pgoff > vma->vm_end)
++ return VM_FAULT_SIGBUS;
++
++ get_page(virt_to_page(address));
++ vmf->page = virt_to_page(address);
++ return VM_FAULT_MINOR;
++}
++
++static struct vm_operations_struct pktlog_vmops = {
++ .fault = pktlog_pgfault
++};
++
++static int ath_pktlog_mmap(struct file *file, struct vm_area_struct *vma)
++{
++ struct ath_softc *sc = file->private_data;
++
++ /* entire buffer should be mapped */
++ if (vma->vm_pgoff != 0)
++ return -EINVAL;
++
++ if (!sc->pktlog.pktlog.pktlog_buf) {
++ printk(KERN_ERR "Can't allocate pktlog buf");
++ return -ENOMEM;
++ }
++
++ vma->vm_flags |= VM_LOCKED;
++ vma->vm_ops = &pktlog_vmops;
++
++ return 0;
++}
++
++static ssize_t ath_pktlog_read(struct file *file, char __user *userbuf,
++ size_t count, loff_t *ppos)
++{
++ size_t bufhdr_size;
++ size_t nbytes = 0, ret_val = 0;
++ int rem_len;
++ int start_offset, end_offset;
++ int fold_offset, ppos_data, cur_rd_offset;
++ struct ath_softc *sc = file->private_data;
++ struct ath_pktlog *pktlog_info = &sc->pktlog.pktlog;
++ struct ath_pktlog_buf *log_buf = pktlog_info->pktlog_buf;
++
++ if (log_buf == NULL)
++ return 0;
++
++ bufhdr_size = sizeof(log_buf->bufhdr);
++
++ /* copy valid log entries from circular buffer into user space */
++ rem_len = count;
++
++ nbytes = 0;
++
++ if (*ppos < bufhdr_size) {
++ nbytes = min((int) (bufhdr_size - *ppos), rem_len);
++ if (copy_to_user(userbuf,
++ ((char *) &log_buf->bufhdr) + *ppos, nbytes))
++ return -EFAULT;
++ rem_len -= nbytes;
++ ret_val += nbytes;
++ }
++
++ start_offset = log_buf->rd_offset;
++
++ if ((rem_len == 0) || (start_offset < 0))
++ goto read_done;
++
++ fold_offset = -1;
++ cur_rd_offset = start_offset;
++
++ /* Find the last offset and fold-offset if the buffer is folded */
++ do {
++ struct ath_pktlog_hdr *log_hdr;
++ int log_data_offset;
++
++ log_hdr =
++ (struct ath_pktlog_hdr *) (log_buf->log_data +
++ cur_rd_offset);
++
++ log_data_offset = cur_rd_offset + sizeof(struct ath_pktlog_hdr);
++
++ if ((fold_offset == -1)
++ && ((pktlog_info->pktlog_buf_size -
++ log_data_offset) <= log_hdr->size))
++ fold_offset = log_data_offset - 1;
++
++ PKTLOG_MOV_RD_IDX(cur_rd_offset, log_buf,
++ pktlog_info->pktlog_buf_size);
++
++ if ((fold_offset == -1) && (cur_rd_offset == 0)
++ && (cur_rd_offset != log_buf->wr_offset))
++ fold_offset = log_data_offset + log_hdr->size - 1;
++
++ end_offset = log_data_offset + log_hdr->size - 1;
++ } while (cur_rd_offset != log_buf->wr_offset);
++
++ ppos_data = *ppos + ret_val - bufhdr_size + start_offset;
++
++ if (fold_offset == -1) {
++ if (ppos_data > end_offset)
++ goto read_done;
++
++ nbytes = min(rem_len, end_offset - ppos_data + 1);
++ if (copy_to_user(userbuf + ret_val,
++ log_buf->log_data + ppos_data, nbytes))
++ return -EFAULT;
++ ret_val += nbytes;
++ rem_len -= nbytes;
++ } else {
++ if (ppos_data <= fold_offset) {
++ nbytes = min(rem_len, fold_offset - ppos_data + 1);
++ if (copy_to_user(userbuf + ret_val,
++ log_buf->log_data + ppos_data,
++ nbytes))
++ return -EFAULT;
++ ret_val += nbytes;
++ rem_len -= nbytes;
++ }
++
++ if (rem_len == 0)
++ goto read_done;
++
++ ppos_data =
++ *ppos + ret_val - (bufhdr_size +
++ (fold_offset - start_offset + 1));
++
++ if (ppos_data <= end_offset) {
++ nbytes = min(rem_len, end_offset - ppos_data + 1);
++ if (copy_to_user(userbuf + ret_val, log_buf->log_data
++ + ppos_data,
++ nbytes))
++ return -EFAULT;
++ ret_val += nbytes;
++ rem_len -= nbytes;
++ }
++ }
++
++read_done:
++ *ppos += ret_val;
++
++ return ret_val;
++}
++
++static const struct file_operations fops_pktlog_dump = {
++ .read = ath_pktlog_read,
++ .mmap = ath_pktlog_mmap,
++ .open = ath9k_debugfs_open
++};
++
++static ssize_t write_pktlog_start(struct file *file, const char __user *ubuf,
++ size_t count, loff_t *ppos)
++{
++ struct ath_softc *sc = file->private_data;
++ struct ath_pktlog *pktlog = &sc->pktlog.pktlog;
++ char buf[32];
++ int buf_size;
++ int start_pktlog, err;
++
++ buf_size = min(count, sizeof(buf) - 1);
++ if (copy_from_user(buf, ubuf, buf_size))
++ return -EFAULT;
++
++ sscanf(buf, "%d", &start_pktlog);
++ if (start_pktlog) {
++ if (pktlog->pktlog_buf != NULL)
++ ath_pktlog_release(pktlog);
++
++ err = ath_alloc_pktlog_buf(sc);
++ if (err != 0)
++ return err;
++
++ ath_init_pktlog_buf(pktlog);
++ pktlog->pktlog_buf->rd_offset = -1;
++ pktlog->pktlog_buf->wr_offset = 0;
++ sc->is_pkt_logging = 1;
++ } else {
++ sc->is_pkt_logging = 0;
++ }
++
++ sc->sc_ah->is_pkt_logging = sc->is_pkt_logging;
++ return count;
++}
++
++static ssize_t read_pktlog_start(struct file *file, char __user *ubuf,
++ size_t count, loff_t *ppos)
++{
++ char buf[32];
++ struct ath_softc *sc = file->private_data;
++ int len = 0;
++
++ len = scnprintf(buf, sizeof(buf) - len, "%d", sc->is_pkt_logging);
++ return simple_read_from_buffer(ubuf, count, ppos, buf, len);
++}
++
++static const struct file_operations fops_pktlog_start = {
++ .read = read_pktlog_start,
++ .write = write_pktlog_start,
++ .open = ath9k_debugfs_open
++};
++
++static ssize_t pktlog_size_write(struct file *file, const char __user *ubuf,
++ size_t count, loff_t *ppos)
++{
++ struct ath_softc *sc = file->private_data;
++ char buf[32];
++ u32 pktlog_size;
++ int buf_size;
++
++ buf_size = min(count, sizeof(buf) - 1);
++ if (copy_from_user(buf, ubuf, buf_size))
++ return -EFAULT;
++
++ sscanf(buf, "%d", &pktlog_size);
++
++ if (pktlog_size == sc->pktlog.pktlog.pktlog_buf_size)
++ return count;
++
++ if (sc->is_pkt_logging) {
++ printk(KERN_DEBUG "Stop packet logging before"
++ " changing the pktlog size \n");
++ return -EINVAL;
++ }
++
++ sc->pktlog.pktlog.pktlog_buf_size = pktlog_size;
++
++ return count;
++}
++
++static ssize_t pktlog_size_read(struct file *file, char __user *ubuf,
++ size_t count, loff_t *ppos)
++{
++ char buf[32];
++ struct ath_softc *sc = file->private_data;
++ int len = 0;
++
++ len = scnprintf(buf, sizeof(buf) - len, "%ul",
++ sc->pktlog.pktlog.pktlog_buf_size);
++ return simple_read_from_buffer(ubuf, count, ppos, buf, len);
++}
++
++static const struct file_operations fops_pktlog_size = {
++ .read = pktlog_size_read,
++ .write = pktlog_size_write,
++ .open = ath9k_debugfs_open
++};
++
++static ssize_t pktlog_filter_write(struct file *file, const char __user *ubuf,
++ size_t count, loff_t *ppos)
++{
++ char buf[32];
++ struct ath_softc *sc = file->private_data;
++ u32 filter;
++ int buf_count;
++
++ buf_count = min(count, sizeof(buf) - 1);
++ if (copy_from_user(buf, ubuf, buf_count))
++ return -EFAULT;
++
++ if (sscanf(buf, "%x", &filter))
++ sc->pktlog.pktlog.pktlog_filter = filter;
++ else
++ sc->pktlog.pktlog.pktlog_filter = 0;
++
++ return count;
++}
++
++static ssize_t pktlog_filter_read(struct file *file, char __user *ubuf,
++ size_t count, loff_t *ppos)
++{
++ char buf[32];
++ struct ath_softc *sc = file->private_data;
++ int len = 0;
++
++ len = scnprintf(buf, sizeof(buf) - len, "%ul",
++ sc->pktlog.pktlog.pktlog_filter);
++
++ return simple_read_from_buffer(ubuf, count, ppos, buf, len);
++}
++
++static const struct file_operations fops_pktlog_filter = {
++ .read = pktlog_filter_read,
++ .write = pktlog_filter_write,
++ .open = ath9k_debugfs_open
++};
++
++void ath_pktlog_txctl(struct ath_softc *sc, struct ath_buf *bf)
++{
++ struct ath_pktlog_txctl *tx_log;
++ struct ath_pktlog *pl_info;
++ struct ieee80211_hdr *hdr;
++ struct ath_desc_info desc_info;
++ int i;
++ u32 *ds_words, flags = 0;
++
++ pl_info = &sc->pktlog.pktlog;
++
++ if ((pl_info->pktlog_filter & ATH_PKTLOG_TX) == 0 ||
++ bf->bf_mpdu == NULL || !sc->is_pkt_logging)
++ return;
++
++ flags |= (((sc->sc_ah->hw_version.macRev <<
++ PHFLAGS_MACREV_SFT) & PHFLAGS_MACREV_MASK) |
++ ((sc->sc_ah->hw_version.macVersion << PHFLAGS_MACVERSION_SFT)
++ & PHFLAGS_MACVERSION_MASK));
++
++ tx_log = (struct ath_pktlog_txctl *)ath_pktlog_getbuf(pl_info,
++ PKTLOG_TYPE_TXCTL, sizeof(*tx_log), flags);
++
++ memset(tx_log, 0, sizeof(*tx_log));
++
++ hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
++ tx_log->framectrl = hdr->frame_control;
++ tx_log->seqctrl = hdr->seq_ctrl;
++
++ if (ieee80211_has_tods(tx_log->framectrl)) {
++ tx_log->bssid_tail = (hdr->addr1[ETH_ALEN - 2] << 8) |
++ (hdr->addr1[ETH_ALEN - 1]);
++ tx_log->sa_tail = (hdr->addr2[ETH_ALEN - 2] << 8) |
++ (hdr->addr2[ETH_ALEN - 1]);
++ tx_log->da_tail = (hdr->addr3[ETH_ALEN - 2] << 8) |
++ (hdr->addr3[ETH_ALEN - 1]);
++ } else if (ieee80211_has_fromds(tx_log->framectrl)) {
++ tx_log->bssid_tail = (hdr->addr2[ETH_ALEN - 2] << 8) |
++ (hdr->addr2[ETH_ALEN - 1]);
++ tx_log->sa_tail = (hdr->addr3[ETH_ALEN - 2] << 8) |
++ (hdr->addr3[ETH_ALEN - 1]);
++ tx_log->da_tail = (hdr->addr1[ETH_ALEN - 2] << 8) |
++ (hdr->addr1[ETH_ALEN - 1]);
++ } else {
++ tx_log->bssid_tail = (hdr->addr3[ETH_ALEN - 2] << 8) |
++ (hdr->addr3[ETH_ALEN - 1]);
++ tx_log->sa_tail = (hdr->addr2[ETH_ALEN - 2] << 8) |
++ (hdr->addr2[ETH_ALEN - 1]);
++ tx_log->da_tail = (hdr->addr1[ETH_ALEN - 2] << 8) |
++ (hdr->addr1[ETH_ALEN - 1]);
++ }
++
++ ath9k_hw_get_descinfo(sc->sc_ah, &desc_info);
++
++ ds_words = (u32 *)(bf->bf_desc) + desc_info.txctl_offset;
++ for (i = 0; i < desc_info.txctl_numwords; i++)
++ tx_log->txdesc_ctl[i] = ds_words[i];
++}
++
++void ath_pktlog_txstatus(struct ath_softc *sc, void *ds)
++{
++ struct ath_pktlog_txstatus *tx_log;
++ struct ath_pktlog *pl_info;
++ struct ath_desc_info desc_info;
++ int i;
++ u32 *ds_words, flags = 0;
++
++ pl_info = &sc->pktlog.pktlog;
++
++ if ((pl_info->pktlog_filter & ATH_PKTLOG_TX) == 0 ||
++ !sc->is_pkt_logging)
++ return;
++
++ flags |= (((sc->sc_ah->hw_version.macRev <<
++ PHFLAGS_MACREV_SFT) & PHFLAGS_MACREV_MASK) |
++ ((sc->sc_ah->hw_version.macVersion << PHFLAGS_MACVERSION_SFT)
++ & PHFLAGS_MACVERSION_MASK));
++ tx_log = (struct ath_pktlog_txstatus *)ath_pktlog_getbuf(pl_info,
++ PKTLOG_TYPE_TXSTATUS, sizeof(*tx_log), flags);
++
++ memset(tx_log, 0, sizeof(*tx_log));
++
++ ath9k_hw_get_descinfo(sc->sc_ah, &desc_info);
++
++ ds_words = (u32 *)(ds) + desc_info.txstatus_offset;
++
++ for (i = 0; i < desc_info.txstatus_numwords; i++)
++ tx_log->txdesc_status[i] = ds_words[i];
++}
++
++void ath_pktlog_rx(struct ath_softc *sc, void *desc, struct sk_buff *skb)
++{
++ struct ath_pktlog_rx *rx_log;
++ struct ath_pktlog *pl_info;
++ struct ieee80211_hdr *hdr;
++ struct ath_desc_info desc_info;
++ int i;
++ u32 *ds_words, flags = 0;
++
++ pl_info = &sc->pktlog.pktlog;
++
++ if ((pl_info->pktlog_filter & ATH_PKTLOG_RX) == 0 ||
++ !sc->is_pkt_logging)
++ return;
++
++ flags |= (((sc->sc_ah->hw_version.macRev <<
++ PHFLAGS_MACREV_SFT) & PHFLAGS_MACREV_MASK) |
++ ((sc->sc_ah->hw_version.macVersion <<
++ PHFLAGS_MACVERSION_SFT) & PHFLAGS_MACVERSION_MASK));
++
++ rx_log = (struct ath_pktlog_rx *)ath_pktlog_getbuf(pl_info, PKTLOG_TYPE_RX,
++ sizeof(*rx_log), flags);
++
++ memset(rx_log, 0, sizeof(*rx_log));
++
++ if (skb->len > sizeof(struct ieee80211_hdr)) {
++ hdr = (struct ieee80211_hdr *) skb->data;
++ rx_log->framectrl = hdr->frame_control;
++ rx_log->seqctrl = hdr->seq_ctrl;
++
++ if (ieee80211_has_tods(rx_log->framectrl)) {
++ rx_log->bssid_tail = (hdr->addr1[ETH_ALEN - 2] << 8) |
++ (hdr->addr1[ETH_ALEN - 1]);
++ rx_log->sa_tail = (hdr->addr2[ETH_ALEN - 2] << 8) |
++ (hdr->addr2[ETH_ALEN - 1]);
++ rx_log->da_tail = (hdr->addr3[ETH_ALEN - 2] << 8) |
++ (hdr->addr3[ETH_ALEN - 1]);
++ } else if (ieee80211_has_fromds(rx_log->framectrl)) {
++ rx_log->bssid_tail = (hdr->addr2[ETH_ALEN - 2] << 8) |
++ (hdr->addr2[ETH_ALEN - 1]);
++ rx_log->sa_tail = (hdr->addr3[ETH_ALEN - 2] << 8) |
++ (hdr->addr3[ETH_ALEN - 1]);
++ rx_log->da_tail = (hdr->addr1[ETH_ALEN - 2] << 8) |
++ (hdr->addr1[ETH_ALEN - 1]);
++ } else {
++ rx_log->bssid_tail = (hdr->addr3[ETH_ALEN - 2] << 8) |
++ (hdr->addr3[ETH_ALEN - 1]);
++ rx_log->sa_tail = (hdr->addr2[ETH_ALEN - 2] << 8) |
++ (hdr->addr2[ETH_ALEN - 1]);
++ rx_log->da_tail = (hdr->addr1[ETH_ALEN - 2] << 8) |
++ (hdr->addr1[ETH_ALEN - 1]);
++ }
++ } else {
++ hdr = (struct ieee80211_hdr *) skb->data;
++
++ if (ieee80211_is_ctl(hdr->frame_control)) {
++ rx_log->framectrl = hdr->frame_control;
++ rx_log->da_tail = (hdr->addr1[ETH_ALEN - 2] << 8) |
++ (hdr->addr1[ETH_ALEN - 1]);
++ if (skb->len < sizeof(struct ieee80211_rts)) {
++ rx_log->sa_tail = 0;
++ } else {
++ rx_log->sa_tail = (hdr->addr2[ETH_ALEN - 2]
++ << 8) |
++ (hdr->addr2[ETH_ALEN - 1]);
++ }
++ } else {
++ rx_log->framectrl = 0xFFFF;
++ rx_log->da_tail = 0;
++ rx_log->sa_tail = 0;
++ }
++
++ rx_log->seqctrl = 0;
++ rx_log->bssid_tail = 0;
++ }
++
++ ath9k_hw_get_descinfo(sc->sc_ah, &desc_info);
++
++ ds_words = (u32 *)(desc) + desc_info.rxstatus_offset;
++
++ for (i = 0; i < desc_info.rxstatus_numwords; i++)
++ rx_log->rxdesc_status[i] = ds_words[i];
++}
++
++void ath9k_pktlog_rc(struct ath_softc *sc, struct ath_rate_priv *ath_rc_priv,
++ int8_t ratecode, u8 rate, int8_t is_probing, u16 ac)
++{
++ struct ath_pktlog_rcfind *rcf_log;
++ struct ath_pktlog *pl_info;
++ u32 flags = 0;
++
++ pl_info = &sc->pktlog.pktlog;
++
++ if ((pl_info->pktlog_filter & ATH_PKTLOG_RCFIND) == 0 ||
++ !sc->is_pkt_logging)
++ return;
++
++ flags |= (((sc->sc_ah->hw_version.macRev <<
++ PHFLAGS_MACREV_SFT) & PHFLAGS_MACREV_MASK) |
++ ((sc->sc_ah->hw_version.macVersion <<
++ PHFLAGS_MACVERSION_SFT) & PHFLAGS_MACVERSION_MASK));
++ rcf_log = (struct ath_pktlog_rcfind *)ath_pktlog_getbuf(pl_info,
++ PKTLOG_TYPE_RCFIND, sizeof(*rcf_log), flags);
++
++ rcf_log->rate = rate;
++ rcf_log->rateCode = ratecode;
++ rcf_log->rcProbeRate = is_probing ? ath_rc_priv->probe_rate : 0;
++ rcf_log->isProbing = is_probing;
++ rcf_log->ac = ac;
++ rcf_log->rcRateMax = ath_rc_priv->rate_max_phy;
++ rcf_log->rcRateTableSize = ath_rc_priv->rate_table_size;
++}
++
++void ath9k_pktlog_rcupdate(struct ath_softc *sc, struct ath_rate_priv *ath_rc_priv, u8 tx_rate,
++ u8 rate_code, u8 xretries, u8 retries, int8_t rssi, u16 ac)
++{
++ struct ath_pktlog_rcupdate *rcu_log;
++ struct ath_pktlog *pl_info;
++ int i;
++ u32 flags = 0;
++
++ pl_info = &sc->pktlog.pktlog;
++
++ if ((pl_info->pktlog_filter & ATH_PKTLOG_RCUPDATE) == 0 ||
++ !sc->is_pkt_logging)
++ return;
++
++ flags |= (((sc->sc_ah->hw_version.macRev <<
++ PHFLAGS_MACREV_SFT) & PHFLAGS_MACREV_MASK) |
++ ((sc->sc_ah->hw_version.macVersion <<
++ PHFLAGS_MACVERSION_SFT) & PHFLAGS_MACVERSION_MASK));
++ rcu_log = (struct ath_pktlog_rcupdate *)ath_pktlog_getbuf(pl_info,
++ PKTLOG_TYPE_RCUPDATE,
++ sizeof(*rcu_log), flags);
++
++ memset(rcu_log, 0, sizeof(*rcu_log));
++
++ rcu_log->txRate = tx_rate;
++ rcu_log->rateCode = rate_code;
++ rcu_log->Xretries = xretries;
++ rcu_log->retries = retries;
++ rcu_log->rssiAck = rssi;
++ rcu_log->ac = ac;
++ rcu_log->rcProbeRate = ath_rc_priv->probe_rate;
++ rcu_log->rcRateMax = ath_rc_priv->rate_max_phy;
++
++ for (i = 0; i < RATE_TABLE_SIZE; i++) {
++ rcu_log->rcPer[i] = ath_rc_priv->per[i];
++ }
++}
++
++void ath9k_pktlog_txcomplete(struct ath_softc *sc, struct list_head *bf_head,
++ struct ath_buf *bf, struct ath_buf *bf_last)
++{
++ struct log_tx ;
++ struct ath_buf *tbf;
++
++ list_for_each_entry(tbf, bf_head, list)
++ ath_pktlog_txctl(sc, tbf);
++
++ if (bf->bf_next == NULL && bf_last->bf_stale)
++ ath_pktlog_txctl(sc, bf_last);
++}
++
++void ath9k_pktlog_txctrl(struct ath_softc *sc, struct list_head *bf_head, struct ath_buf *lastbf)
++{
++ struct log_tx ;
++ struct ath_buf *tbf;
++
++ list_for_each_entry(tbf, bf_head, list)
++ ath_pktlog_txctl(sc, tbf);
++
++ /* log the last descriptor. */
++ ath_pktlog_txctl(sc, lastbf);
++}
++
++static void pktlog_init(struct ath_softc *sc)
++{
++ spin_lock_init(&sc->pktlog.pktlog.pktlog_lock);
++ sc->pktlog.pktlog.pktlog_buf_size = ATH_DEBUGFS_PKTLOG_SIZE_DEFAULT;
++ sc->pktlog.pktlog.pktlog_buf = NULL;
++ sc->pktlog.pktlog.pktlog_filter = 0;
++}
++
++int ath9k_init_pktlog(struct ath_softc *sc)
++{
++ sc->pktlog.debugfs_pktlog = debugfs_create_dir("pktlog",
++ sc->debug.debugfs_phy);
++ if (!sc->pktlog.debugfs_pktlog)
++ goto err;
++
++ sc->pktlog.pktlog_start = debugfs_create_file("pktlog_start",
++ S_IRUGO | S_IWUSR,
++ sc->pktlog.debugfs_pktlog,
++ sc, &fops_pktlog_start);
++ if (!sc->pktlog.pktlog_start)
++ goto err;
++
++ sc->pktlog.pktlog_size = debugfs_create_file("pktlog_size",
++ S_IRUGO | S_IWUSR,
++ sc->pktlog.debugfs_pktlog,
++ sc, &fops_pktlog_size);
++ if (!sc->pktlog.pktlog_size)
++ goto err;
++
++ sc->pktlog.pktlog_filter = debugfs_create_file("pktlog_filter",
++ S_IRUGO | S_IWUSR,
++ sc->pktlog.debugfs_pktlog,
++ sc, &fops_pktlog_filter);
++ if (!sc->pktlog.pktlog_filter)
++ goto err;
++
++ sc->pktlog.pktlog_dump = debugfs_create_file("pktlog_dump",
++ S_IRUGO,
++ sc->pktlog.debugfs_pktlog,
++ sc, &fops_pktlog_dump);
++ if (!sc->pktlog.pktlog_dump)
++ goto err;
++
++ pktlog_init(sc);
++
++ return 0;
++
++err:
++ return -ENOMEM;
++}
++
++void ath9k_deinit_pktlog(struct ath_softc *sc)
++{
++ struct ath_pktlog *pktlog = &sc->pktlog.pktlog;
++
++ if (pktlog->pktlog_buf != NULL)
++ ath_pktlog_release(pktlog);
++
++ debugfs_remove(sc->pktlog.pktlog_start);
++ debugfs_remove(sc->pktlog.pktlog_size);
++ debugfs_remove(sc->pktlog.pktlog_filter);
++ debugfs_remove(sc->pktlog.pktlog_dump);
++ debugfs_remove(sc->pktlog.debugfs_pktlog);
++}
+--- /dev/null
++++ b/drivers/net/wireless/ath/ath9k/pktlog.h
+@@ -0,0 +1,235 @@
++#ifndef PKTLOG_H
++#define PKTLOG_H
++
++#ifdef CONFIG_ATH9K_PKTLOG
++#define CUR_PKTLOG_VER 10010 /* Packet log version */
++#define PKTLOG_MAGIC_NUM 7735225
++#define ATH_PKTLOG_TX 0x000000001
++#define ATH_PKTLOG_RX 0x000000002
++#define ATH_PKTLOG_RCFIND 0x000000004
++#define ATH_PKTLOG_RCUPDATE 0x000000008
++
++#define ATH_DEBUGFS_PKTLOG_SIZE_DEFAULT (1024 * 1024)
++#define ATH_PKTLOG_FILTER_DEFAULT (ATH_PKTLOG_TX | ATH_PKTLOG_RX | \
++ ATH_PKTLOG_RCFIND | ATH_PKTLOG_RCUPDATE)
++
++#define PHFLAGS_MACVERSION_MASK 0x00ff0000
++#define PHFLAGS_MACVERSION_SFT 16
++#define PHFLAGS_MACREV_MASK 0xff0 /* MAC revision */
++#define PHFLAGS_MACREV_SFT 4
++
++struct ath_pktlog_hdr {
++ u32 flags;
++ u16 log_type; /* Type of log information foll this header */
++ int16_t size; /* Size of variable length log information in bytes */
++ u32 timestamp;
++} __packed;
++
++/* Types of packet log events */
++#define PKTLOG_TYPE_TXCTL 0
++#define PKTLOG_TYPE_TXSTATUS 1
++#define PKTLOG_TYPE_RX 2
++#define PKTLOG_TYPE_RCFIND 3
++#define PKTLOG_TYPE_RCUPDATE 4
++
++#define PKTLOG_MAX_TXCTL_WORDS 12
++#define PKTLOG_MAX_TXSTATUS_WORDS 10
++#define PKTLOG_MAX_PROTO_WORDS 16
++
++struct ath_pktlog_txctl {
++ __le16 framectrl; /* frame control field from header */
++ __le16 seqctrl; /* frame control field from header */
++ u16 bssid_tail; /* last two octets of bssid */
++ u16 sa_tail; /* last two octets of SA */
++ u16 da_tail; /* last two octets of DA */
++ u16 resvd;
++ u32 txdesc_ctl[PKTLOG_MAX_TXCTL_WORDS]; /* Tx descriptor words */
++ unsigned long proto_hdr; /* protocol header (variable length!) */
++ int32_t misc[0]; /* Can be used for HT specific or other misc info */
++} __packed;
++
++struct ath_pktlog_txstatus {
++ /* Tx descriptor status words */
++ u32 txdesc_status[PKTLOG_MAX_TXSTATUS_WORDS];
++ int32_t misc[0]; /* Can be used for HT specific or other misc info */
++} __packed;
++
++#define PKTLOG_MAX_RXSTATUS_WORDS 11
++
++struct ath_pktlog_rx {
++ u16 framectrl; /* frame control field from header */
++ u16 seqctrl; /* sequence control field */
++ u16 bssid_tail; /* last two octets of bssid */
++ u16 sa_tail; /* last two octets of SA */
++ u16 da_tail; /* last two octets of DA */
++ u16 resvd;
++ u32 rxdesc_status[PKTLOG_MAX_RXSTATUS_WORDS]; /* Rx descriptor words */
++ unsigned long proto_hdr; /* protocol header (variable length!) */
++ int32_t misc[0]; /* Can be used for HT specific or other misc info */
++} __packed;
++
++struct ath_pktlog_rcfind {
++ u8 rate;
++ u8 rateCode;
++ s8 rcRssiLast;
++ s8 rcRssiLastPrev;
++ s8 rcRssiLastPrev2;
++ s8 rssiReduce;
++ u8 rcProbeRate;
++ s8 isProbing;
++ s8 primeInUse;
++ s8 currentPrimeState;
++ u8 rcRateTableSize;
++ u8 rcRateMax;
++ u8 ac;
++ int32_t misc[0]; /* Can be used for HT specific or other misc info */
++} __packed;
++
++struct ath_pktlog_rcupdate {
++ u8 txRate;
++ u8 rateCode;
++ s8 rssiAck;
++ u8 Xretries;
++ u8 retries;
++ s8 rcRssiLast;
++ s8 rcRssiLastLkup;
++ s8 rcRssiLastPrev;
++ s8 rcRssiLastPrev2;
++ u8 rcProbeRate;
++ u8 rcRateMax;
++ s8 useTurboPrime;
++ s8 currentBoostState;
++ u8 rcHwMaxRetryRate;
++ u8 ac;
++ u8 resvd[2];
++ s8 rcRssiThres[RATE_TABLE_SIZE];
++ u8 rcPer[RATE_TABLE_SIZE];
++ u8 resv2[RATE_TABLE_SIZE + 5];
++ int32_t misc[0]; /* Can be used for HT specific or other misc info */
++};
++
++#define TXCTL_OFFSET(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 11 : 2)
++#define TXCTL_NUMWORDS(ah) (AR_SREV_5416_20_OR_LATER(ah) ? 12 : 8)
++#define TXSTATUS_OFFSET(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 2 : 14)
++#define TXSTATUS_NUMWORDS(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 7 : 10)
++
++#define RXCTL_OFFSET(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 0 : 3)
++#define RXCTL_NUMWORDS(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 0 : 1)
++#define RXSTATUS_OFFSET(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 1 : 4)
++#define RXSTATUS_NUMWORDS(ah) (AR_SREV_9300_20_OR_LATER(ah) ? 11 : 9)
++
++struct ath_desc_info {
++ u8 txctl_offset;
++ u8 txctl_numwords;
++ u8 txstatus_offset;
++ u8 txstatus_numwords;
++ u8 rxctl_offset;
++ u8 rxctl_numwords;
++ u8 rxstatus_offset;
++ u8 rxstatus_numwords;
++};
++
++#define PKTLOG_MOV_RD_IDX(_rd_offset, _log_buf, _log_size) \
++ do { \
++ if ((_rd_offset + sizeof(struct ath_pktlog_hdr) + \
++ ((struct ath_pktlog_hdr *)((_log_buf)->log_data + \
++ (_rd_offset)))->size) <= _log_size) { \
++ _rd_offset = ((_rd_offset) + \
++ sizeof(struct ath_pktlog_hdr) + \
++ ((struct ath_pktlog_hdr *) \
++ ((_log_buf)->log_data + \
++ (_rd_offset)))->size); \
++ } else { \
++ _rd_offset = ((struct ath_pktlog_hdr *) \
++ ((_log_buf)->log_data + \
++ (_rd_offset)))->size; \
++ } \
++ (_rd_offset) = (((_log_size) - (_rd_offset)) >= \
++ sizeof(struct ath_pktlog_hdr)) ? \
++ _rd_offset : 0; \
++ } while (0);
++
++struct ath_pktlog_bufhdr {
++ u32 magic_num; /* Used by post processing scripts */
++ u32 version; /* Set to CUR_PKTLOG_VER */
++};
++
++struct ath_pktlog_buf {
++ struct ath_pktlog_bufhdr bufhdr;
++ int32_t rd_offset;
++ int32_t wr_offset;
++ char log_data[0];
++};
++
++struct ath_pktlog {
++ struct ath_pktlog_buf *pktlog_buf;
++ u32 pktlog_filter;
++ u32 pktlog_buf_size; /* Size of buffer in bytes */
++ spinlock_t pktlog_lock;
++};
++
++struct ath_pktlog_debugfs {
++ struct dentry *debugfs_pktlog;
++ struct dentry *pktlog_enable;
++ struct dentry *pktlog_start;
++ struct dentry *pktlog_filter;
++ struct dentry *pktlog_size;
++ struct dentry *pktlog_dump;
++ struct ath_pktlog pktlog;
++};
++
++void ath_pktlog_txctl(struct ath_softc *sc, struct ath_buf *bf);
++void ath_pktlog_txstatus(struct ath_softc *sc, void *ds);
++void ath_pktlog_rx(struct ath_softc *sc, void *ds, struct sk_buff *skb);
++void ath9k_pktlog_rc(struct ath_softc *sc, struct ath_rate_priv *ath_rc_priv,
++ int8_t ratecode, u8 rate, int8_t is_probing, u16 ac);
++void ath9k_pktlog_rcupdate(struct ath_softc *sc,
++ struct ath_rate_priv *ath_rc_priv, u8 tx_rate,
++ u8 rate_code, u8 xretries, u8 retries, int8_t rssi,
++ u16 ac);
++void ath9k_pktlog_txcomplete(struct ath_softc *sc ,struct list_head *bf_head,
++ struct ath_buf *bf, struct ath_buf *bf_last);
++void ath9k_pktlog_txctrl(struct ath_softc *sc, struct list_head *bf_head,
++ struct ath_buf *lastbf);
++int ath9k_init_pktlog(struct ath_softc *sc);
++void ath9k_deinit_pktlog(struct ath_softc *sc);
++#else /* CONFIG_ATH9K_PKTLOG */
++static inline void ath_pktlog_txstatus(struct ath_softc *sc, void *ds)
++{
++}
++
++static inline void ath_pktlog_rx(struct ath_softc *sc, void *ds,
++ struct sk_buff *skb)
++{
++}
++
++static inline void ath9k_pktlog_rc(struct ath_softc *sc,
++ struct ath_rate_priv *ath_rc_priv,
++ int8_t ratecode, u8 rate,
++ int8_t is_probing, u16 ac)
++{
++}
++
++static inline void ath9k_pktlog_rcupdate(struct ath_softc *sc,
++ struct ath_rate_priv *ath_rc_priv,
++ u8 tx_rate, u8 rate_code,
++ u8 xretries, u8 retries,
++ int8_t rssi, u16 ac)
++{
++}
++
++static inline void ath9k_pktlog_txcomplete(struct ath_softc *sc,
++ struct list_head *bf_head,
++ struct ath_buf *bf,
++ struct ath_buf *bf_last)
++{
++}
++
++static inline void ath9k_pktlog_txctrl(struct ath_softc *sc,
++ struct list_head *bf_head,
++ struct ath_buf *lastbf)
++{
++}
++#endif /* CONFIG_ATH9K_PKTLOG */
++
++#endif
+--- a/drivers/net/wireless/ath/ath9k/rc.c
++++ b/drivers/net/wireless/ath/ath9k/rc.c
+@@ -40,73 +40,75 @@ static const struct ath_rate_table ar541
+ { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */
+ 29300, 7, 108, 4, 7, 7, 7, 7 },
+ { VALID_2040, VALID_2040, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */
+- 6400, 0, 0, 0, 8, 24, 8, 24 },
++ 6400, 0, 0, 0, 8, 25, 8, 25 },
+ { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 13000, /* 13 Mb */
+- 12700, 1, 1, 2, 9, 25, 9, 25 },
++ 12700, 1, 1, 2, 9, 26, 9, 26 },
+ { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 19500, /* 19.5 Mb */
+- 18800, 2, 2, 2, 10, 26, 10, 26 },
++ 18800, 2, 2, 2, 10, 27, 10, 27 },
+ { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 26000, /* 26 Mb */
+- 25000, 3, 3, 4, 11, 27, 11, 27 },
++ 25000, 3, 3, 4, 11, 28, 11, 28 },
+ { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 39000, /* 39 Mb */
+- 36700, 4, 4, 4, 12, 28, 12, 28 },
++ 36700, 4, 4, 4, 12, 29, 12, 29 },
+ { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 52000, /* 52 Mb */
+- 48100, 5, 5, 4, 13, 29, 13, 29 },
++ 48100, 5, 5, 4, 13, 30, 13, 30 },
+ { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 58500, /* 58.5 Mb */
+- 53500, 6, 6, 4, 14, 30, 14, 30 },
++ 53500, 6, 6, 4, 14, 31, 14, 31 },
+ { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 65000, /* 65 Mb */
+- 59000, 7, 7, 4, 15, 31, 15, 32 },
++ 59000, 7, 7, 4, 15, 32, 15, 33 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 13000, /* 13 Mb */
+- 12700, 8, 8, 3, 16, 33, 16, 33 },
++ 12700, 8, 8, 3, 16, 34, 16, 34 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 26000, /* 26 Mb */
+- 24800, 9, 9, 2, 17, 34, 17, 34 },
++ 24800, 9, 9, 2, 17, 35, 17, 35 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 39000, /* 39 Mb */
+- 36600, 10, 10, 2, 18, 35, 18, 35 },
++ 36600, 10, 10, 2, 18, 36, 18, 36 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 52000, /* 52 Mb */
+- 48100, 11, 11, 4, 19, 36, 19, 36 },
++ 48100, 11, 11, 4, 19, 37, 19, 37 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 78000, /* 78 Mb */
+- 69500, 12, 12, 4, 20, 37, 20, 37 },
++ 69500, 12, 12, 4, 20, 38, 20, 38 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 104000, /* 104 Mb */
+- 89500, 13, 13, 4, 21, 38, 21, 38 },
++ 89500, 13, 13, 4, 21, 39, 21, 39 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 117000, /* 117 Mb */
+- 98900, 14, 14, 4, 22, 39, 22, 39 },
++ 98900, 14, 14, 4, 22, 40, 22, 40 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 130000, /* 130 Mb */
+- 108300, 15, 15, 4, 23, 40, 23, 41 },
++ 108300, 15, 15, 4, 23, 41, 24, 42 },
++ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS_HGI, 144400, /* 144.4 Mb */
++ 12000, 15, 15, 4, 23, 41, 24, 42 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 13500, /* 13.5 Mb */
+- 13200, 0, 0, 0, 8, 24, 24, 24 },
++ 13200, 0, 0, 0, 8, 25, 25, 25 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 27500, /* 27.0 Mb */
+- 25900, 1, 1, 2, 9, 25, 25, 25 },
++ 25900, 1, 1, 2, 9, 26, 26, 26 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 40500, /* 40.5 Mb */
+- 38600, 2, 2, 2, 10, 26, 26, 26 },
++ 38600, 2, 2, 2, 10, 27, 27, 27 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 54000, /* 54 Mb */
+- 49800, 3, 3, 4, 11, 27, 27, 27 },
++ 49800, 3, 3, 4, 11, 28, 28, 28 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 81500, /* 81 Mb */
+- 72200, 4, 4, 4, 12, 28, 28, 28 },
++ 72200, 4, 4, 4, 12, 29, 29, 29 },
+ { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 108000, /* 108 Mb */
+- 92900, 5, 5, 4, 13, 29, 29, 29 },
++ 92900, 5, 5, 4, 13, 30, 30, 30 },
+ { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 121500, /* 121.5 Mb */
+- 102700, 6, 6, 4, 14, 30, 30, 30 },
++ 102700, 6, 6, 4, 14, 31, 31, 31 },
+ { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 135000, /* 135 Mb */
+- 112000, 7, 7, 4, 15, 31, 32, 32 },
++ 112000, 7, 7, 4, 15, 32, 33, 33 },
+ { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, /* 150 Mb */
+- 122000, 7, 7, 4, 15, 31, 32, 32 },
++ 122000, 7, 7, 4, 15, 32, 33, 33 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 27000, /* 27 Mb */
+- 25800, 8, 8, 0, 16, 33, 33, 33 },
++ 25800, 8, 8, 0, 16, 34, 34, 34 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 54000, /* 54 Mb */
+- 49800, 9, 9, 2, 17, 34, 34, 34 },
++ 49800, 9, 9, 2, 17, 35, 35, 35 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 81000, /* 81 Mb */
+- 71900, 10, 10, 2, 18, 35, 35, 35 },
++ 71900, 10, 10, 2, 18, 36, 36, 36 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 108000, /* 108 Mb */
+- 92500, 11, 11, 4, 19, 36, 36, 36 },
++ 92500, 11, 11, 4, 19, 37, 37, 37 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 162000, /* 162 Mb */
+- 130300, 12, 12, 4, 20, 37, 37, 37 },
++ 130300, 12, 12, 4, 20, 38, 38, 38 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 216000, /* 216 Mb */
+- 162800, 13, 13, 4, 21, 38, 38, 38 },
++ 162800, 13, 13, 4, 21, 39, 39, 39 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 243000, /* 243 Mb */
+- 178200, 14, 14, 4, 22, 39, 39, 39 },
++ 178200, 14, 14, 4, 22, 40, 40, 40 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 270000, /* 270 Mb */
+- 192100, 15, 15, 4, 23, 40, 41, 41 },
++ 192100, 15, 15, 4, 23, 41, 42, 42 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS_HGI, 300000, /* 300 Mb */
+- 207000, 15, 15, 4, 23, 40, 41, 41 },
++ 207000, 15, 15, 4, 23, 41, 42, 42 },
+ },
+ 50, /* probe interval */
+ WLAN_RC_HT_FLAG, /* Phy rates allowed initially */
+@@ -144,73 +146,75 @@ static const struct ath_rate_table ar541
+ { VALID, VALID, WLAN_RC_PHY_OFDM, 54000, /* 54 Mb */
+ 30900, 11, 108, 8, 11, 11, 11, 11 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_20_SS, 6500, /* 6.5 Mb */
+- 6400, 0, 0, 4, 12, 28, 12, 28 },
++ 6400, 0, 0, 4, 12, 29, 12, 29 },
+ { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 13000, /* 13 Mb */
+- 12700, 1, 1, 6, 13, 29, 13, 29 },
++ 12700, 1, 1, 6, 13, 30, 13, 30 },
+ { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 19500, /* 19.5 Mb */
+- 18800, 2, 2, 6, 14, 30, 14, 30 },
++ 18800, 2, 2, 6, 14, 31, 14, 31 },
+ { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 26000, /* 26 Mb */
+- 25000, 3, 3, 8, 15, 31, 15, 31 },
++ 25000, 3, 3, 8, 15, 32, 15, 32 },
+ { VALID_20, VALID_20, WLAN_RC_PHY_HT_20_SS, 39000, /* 39 Mb */
+- 36700, 4, 4, 8, 16, 32, 16, 32 },
++ 36700, 4, 4, 8, 16, 33, 16, 33 },
+ { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 52000, /* 52 Mb */
+- 48100, 5, 5, 8, 17, 33, 17, 33 },
++ 48100, 5, 5, 8, 17, 34, 17, 34 },
+ { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 58500, /* 58.5 Mb */
+- 53500, 6, 6, 8, 18, 34, 18, 34 },
++ 53500, 6, 6, 8, 18, 35, 18, 35 },
+ { INVALID, VALID_20, WLAN_RC_PHY_HT_20_SS, 65000, /* 65 Mb */
+- 59000, 7, 7, 8, 19, 35, 19, 36 },
++ 59000, 7, 7, 8, 19, 36, 19, 37 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 13000, /* 13 Mb */
+- 12700, 8, 8, 4, 20, 37, 20, 37 },
++ 12700, 8, 8, 4, 20, 38, 20, 38 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 26000, /* 26 Mb */
+- 24800, 9, 9, 6, 21, 38, 21, 38 },
++ 24800, 9, 9, 6, 21, 39, 21, 39 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_20_DS, 39000, /* 39 Mb */
+- 36600, 10, 10, 6, 22, 39, 22, 39 },
++ 36600, 10, 10, 6, 22, 40, 22, 40 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 52000, /* 52 Mb */
+- 48100, 11, 11, 8, 23, 40, 23, 40 },
++ 48100, 11, 11, 8, 23, 41, 23, 41 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 78000, /* 78 Mb */
+- 69500, 12, 12, 8, 24, 41, 24, 41 },
++ 69500, 12, 12, 8, 24, 42, 24, 42 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 104000, /* 104 Mb */
+- 89500, 13, 13, 8, 25, 42, 25, 42 },
++ 89500, 13, 13, 8, 25, 43, 25, 43 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 117000, /* 117 Mb */
+- 98900, 14, 14, 8, 26, 43, 26, 44 },
++ 98900, 14, 14, 8, 26, 44, 26, 44 },
+ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS, 130000, /* 130 Mb */
+- 108300, 15, 15, 8, 27, 44, 27, 45 },
++ 108300, 15, 15, 8, 27, 45, 28, 46 },
++ { VALID_20, INVALID, WLAN_RC_PHY_HT_20_DS_HGI, 144400, /* 130 Mb */
++ 120000, 15, 15, 8, 27, 45, 28, 46 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 13500, /* 13.5 Mb */
+- 13200, 0, 0, 8, 12, 28, 28, 28 },
++ 13200, 0, 0, 8, 12, 29, 29, 29 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 27500, /* 27.0 Mb */
+- 25900, 1, 1, 8, 13, 29, 29, 29 },
++ 25900, 1, 1, 8, 13, 30, 30, 30 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 40500, /* 40.5 Mb */
+- 38600, 2, 2, 8, 14, 30, 30, 30 },
++ 38600, 2, 2, 8, 14, 31, 31, 31 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 54000, /* 54 Mb */
+- 49800, 3, 3, 8, 15, 31, 31, 31 },
++ 49800, 3, 3, 8, 15, 32, 32, 32 },
+ { VALID_40, VALID_40, WLAN_RC_PHY_HT_40_SS, 81500, /* 81 Mb */
+- 72200, 4, 4, 8, 16, 32, 32, 32 },
++ 72200, 4, 4, 8, 16, 33, 33, 33 },
+ { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 108000, /* 108 Mb */
+- 92900, 5, 5, 8, 17, 33, 33, 33 },
++ 92900, 5, 5, 8, 17, 34, 34, 34 },
+ { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 121500, /* 121.5 Mb */
+- 102700, 6, 6, 8, 18, 34, 34, 34 },
++ 102700, 6, 6, 8, 18, 35, 35, 35 },
+ { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS, 135000, /* 135 Mb */
+- 112000, 7, 7, 8, 19, 35, 36, 36 },
++ 112000, 7, 7, 8, 19, 36, 37, 37 },
+ { INVALID, VALID_40, WLAN_RC_PHY_HT_40_SS_HGI, 150000, /* 150 Mb */
+- 122000, 7, 7, 8, 19, 35, 36, 36 },
++ 122000, 7, 7, 8, 19, 36, 37, 37 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 27000, /* 27 Mb */
+- 25800, 8, 8, 8, 20, 37, 37, 37 },
++ 25800, 8, 8, 8, 20, 38, 38, 38 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 54000, /* 54 Mb */
+- 49800, 9, 9, 8, 21, 38, 38, 38 },
++ 49800, 9, 9, 8, 21, 39, 39, 39 },
+ { INVALID, INVALID, WLAN_RC_PHY_HT_40_DS, 81000, /* 81 Mb */
+- 71900, 10, 10, 8, 22, 39, 39, 39 },
++ 71900, 10, 10, 8, 22, 40, 40, 40 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 108000, /* 108 Mb */
+- 92500, 11, 11, 8, 23, 40, 40, 40 },
++ 92500, 11, 11, 8, 23, 41, 41, 41 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 162000, /* 162 Mb */
+- 130300, 12, 12, 8, 24, 41, 41, 41 },
++ 130300, 12, 12, 8, 24, 42, 42, 42 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 216000, /* 216 Mb */
+- 162800, 13, 13, 8, 25, 42, 42, 42 },
++ 162800, 13, 13, 8, 25, 43, 43, 43 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 243000, /* 243 Mb */
+- 178200, 14, 14, 8, 26, 43, 43, 43 },
++ 178200, 14, 14, 8, 26, 44, 44, 44 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS, 270000, /* 270 Mb */
+- 192100, 15, 15, 8, 27, 44, 45, 45 },
++ 192100, 15, 15, 8, 27, 45, 46, 46 },
+ { VALID_40, INVALID, WLAN_RC_PHY_HT_40_DS_HGI, 300000, /* 300 Mb */
+- 207000, 15, 15, 8, 27, 44, 45, 45 },
++ 207000, 15, 15, 8, 27, 45, 46, 46 },
+ },
+ 50, /* probe interval */
+ WLAN_RC_HT_FLAG, /* Phy rates allowed initially */
+@@ -510,7 +514,7 @@ static u8 ath_rc_setvalid_htrates(struct
+ static u8 ath_rc_get_highest_rix(struct ath_softc *sc,
+ struct ath_rate_priv *ath_rc_priv,
+ const struct ath_rate_table *rate_table,
+- int *is_probing)
++ int *is_probing, u16 ac)
+ {
+ u32 best_thruput, this_thruput, now_msec;
+ u8 rate, next_rate, best_rate, maxindex, minindex;
+@@ -598,6 +602,8 @@ static u8 ath_rc_get_highest_rix(struct
+
+ rate = ath_rc_priv->valid_rate_index[0];
+
++ ath9k_pktlog_rc(sc, ath_rc_priv, rate_table->info[rate].ratecode,
++ rate, *is_probing, ac);
+ return rate;
+ }
+
+@@ -689,7 +695,7 @@ static void ath_get_rate(void *priv, str
+ try_per_rate = 4;
+
+ rate_table = sc->cur_rate_table;
+- rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table, &is_probe);
++ rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table, &is_probe, skb_get_queue_mapping(skb));
+
+ /*
+ * If we're in HT mode and both us and our peer supports LDPC.
+@@ -929,7 +935,8 @@ static bool ath_rc_update_per(struct ath
+ static void ath_rc_update_ht(struct ath_softc *sc,
+ struct ath_rate_priv *ath_rc_priv,
+ struct ieee80211_tx_info *tx_info,
+- int tx_rate, int xretries, int retries)
++ int tx_rate, int xretries, int retries,
++ u16 ac)
+ {
+ u32 now_msec = jiffies_to_msecs(jiffies);
+ int rate;
+@@ -998,6 +1005,9 @@ static void ath_rc_update_ht(struct ath_
+ ath_debug_stat_retries(sc, tx_rate, xretries, retries,
+ ath_rc_priv->per[tx_rate]);
+
++ ath9k_pktlog_rcupdate(sc, ath_rc_priv, tx_rate,
++ rate_table->info[tx_rate].ratecode,
++ xretries, retries, tx_info->status.ack_signal, ac);
+ }
+
+ static int ath_rc_get_rateindex(const struct ath_rate_table *rate_table,
+@@ -1025,7 +1035,8 @@ static int ath_rc_get_rateindex(const st
+ static void ath_rc_tx_status(struct ath_softc *sc,
+ struct ath_rate_priv *ath_rc_priv,
+ struct ieee80211_tx_info *tx_info,
+- int final_ts_idx, int xretries, int long_retry)
++ int final_ts_idx, int xretries, int long_retry,
++ u16 ac)
+ {
+ const struct ath_rate_table *rate_table;
+ struct ieee80211_tx_rate *rates = tx_info->status.rates;
+@@ -1054,7 +1065,7 @@ static void ath_rc_tx_status(struct ath_
+ rix = ath_rc_get_rateindex(rate_table, &rates[i]);
+ ath_rc_update_ht(sc, ath_rc_priv, tx_info,
+ rix, xretries ? 1 : 2,
+- rates[i].count);
++ rates[i].count, ac);
+ }
+ }
+ } else {
+@@ -1076,7 +1087,7 @@ static void ath_rc_tx_status(struct ath_
+ return;
+
+ rix = ath_rc_get_rateindex(rate_table, &rates[i]);
+- ath_rc_update_ht(sc, ath_rc_priv, tx_info, rix, xretries, long_retry);
++ ath_rc_update_ht(sc, ath_rc_priv, tx_info, rix, xretries, long_retry, ac);
+ }
+
+ static const
+@@ -1193,7 +1204,7 @@ static void ath_rc_init(struct ath_softc
+ }
+
+ static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta,
+- bool is_cw40, bool is_sgi40)
++ bool is_cw40, bool is_sgi)
+ {
+ u8 caps = 0;
+
+@@ -1206,8 +1217,9 @@ static u8 ath_rc_build_ht_caps(struct at
+ }
+ if (is_cw40)
+ caps |= WLAN_RC_40_FLAG;
+- if (is_sgi40)
++ if (is_sgi)
+ caps |= WLAN_RC_SGI_FLAG;
++
+ }
+
+ return caps;
+@@ -1272,7 +1284,8 @@ static void ath_tx_status(void *priv, st
+ tx_status = 1;
+
+ ath_rc_tx_status(sc, ath_rc_priv, tx_info, final_ts_idx, tx_status,
+- (is_underrun) ? sc->hw->max_rate_tries : long_retry);
++ (is_underrun) ? sc->hw->max_rate_tries : long_retry,
++ skb_get_queue_mapping(skb));
+
+ /* Check if aggregation has to be enabled for this tid */
+ if (conf_is_ht(&sc->hw->conf) &&
+@@ -1300,7 +1313,7 @@ static void ath_rate_init(void *priv, st
+ struct ath_softc *sc = priv;
+ struct ath_rate_priv *ath_rc_priv = priv_sta;
+ const struct ath_rate_table *rate_table;
+- bool is_cw40, is_sgi40;
++ bool is_cw40, is_sgi = false;
+ int i, j = 0;
+
+ for (i = 0; i < sband->n_bitrates; i++) {
+@@ -1323,7 +1336,11 @@ static void ath_rate_init(void *priv, st
+ }
+
+ is_cw40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+- is_sgi40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
++
++ if (is_cw40)
++ is_sgi = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40;
++ else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
++ is_sgi = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
+
+ /* Choose rate table first */
+
+@@ -1336,7 +1353,7 @@ static void ath_rate_init(void *priv, st
+ rate_table = hw_rate_table[sc->cur_rate_mode];
+ }
+
+- ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, is_cw40, is_sgi40);
++ ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, is_cw40, is_sgi);
+ ath_rc_init(sc, priv_sta, sband, sta, rate_table);
+ }
+
+@@ -1347,10 +1364,10 @@ static void ath_rate_update(void *priv,
+ struct ath_softc *sc = priv;
+ struct ath_rate_priv *ath_rc_priv = priv_sta;
+ const struct ath_rate_table *rate_table = NULL;
+- bool oper_cw40 = false, oper_sgi40;
++ bool oper_cw40 = false, oper_sgi;
+ bool local_cw40 = (ath_rc_priv->ht_cap & WLAN_RC_40_FLAG) ?
+ true : false;
+- bool local_sgi40 = (ath_rc_priv->ht_cap & WLAN_RC_SGI_FLAG) ?
++ bool local_sgi = (ath_rc_priv->ht_cap & WLAN_RC_SGI_FLAG) ?
+ true : false;
+
+ /* FIXME: Handle AP mode later when we support CWM */
+@@ -1363,15 +1380,21 @@ static void ath_rate_update(void *priv,
+ oper_chan_type == NL80211_CHAN_HT40PLUS)
+ oper_cw40 = true;
+
+- oper_sgi40 = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ?
+- true : false;
++ if (oper_cw40)
++ oper_sgi = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ?
++ true : false;
++ else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
++ oper_sgi = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ?
++ true : false;
++ else
++ oper_sgi = false;
+
+- if ((local_cw40 != oper_cw40) || (local_sgi40 != oper_sgi40)) {
++ if ((local_cw40 != oper_cw40) || (local_sgi != oper_sgi)) {
+ rate_table = ath_choose_rate_table(sc, sband->band,
+ sta->ht_cap.ht_supported,
+ oper_cw40);
+ ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta,
+- oper_cw40, oper_sgi40);
++ oper_cw40, oper_sgi);
+ ath_rc_init(sc, priv_sta, sband, sta, rate_table);
+
+ ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG,
+--- a/drivers/net/wireless/ath/ath9k/recv.c
++++ b/drivers/net/wireless/ath/ath9k/recv.c
+@@ -700,12 +700,16 @@ static bool ath_edma_get_buffers(struct
+ bf = SKB_CB_ATHBUF(skb);
+ BUG_ON(!bf);
+
+- dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
++ dma_sync_single_for_cpu(sc->dev, bf->bf_buf_addr,
+ common->rx_bufsize, DMA_FROM_DEVICE);
+
+ ret = ath9k_hw_process_rxdesc_edma(ah, NULL, skb->data);
+- if (ret == -EINPROGRESS)
++ if (ret == -EINPROGRESS) {
++ /*let device gain the buffer again*/
++ dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
++ common->rx_bufsize, DMA_FROM_DEVICE);
+ return false;
++ }
+
+ __skb_unlink(skb, &rx_edma->rx_fifo);
+ if (ret == -EINVAL) {
+@@ -814,13 +818,266 @@ static struct ath_buf *ath_get_next_rx_b
+ * 1. accessing the frame
+ * 2. requeueing the same buffer to h/w
+ */
+- dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
++ dma_sync_single_for_cpu(sc->dev, bf->bf_buf_addr,
+ common->rx_bufsize,
+ DMA_FROM_DEVICE);
+
+ return bf;
+ }
+
++/* Assumes you've already done the endian to CPU conversion */
++static bool ath9k_rx_accept(struct ath_common *common,
++ struct ieee80211_hdr *hdr,
++ struct ieee80211_rx_status *rxs,
++ struct ath_rx_status *rx_stats,
++ bool *decrypt_error)
++{
++ struct ath_hw *ah = common->ah;
++ __le16 fc;
++ u8 rx_status_len = ah->caps.rx_status_len;
++
++ fc = hdr->frame_control;
++
++ if (!rx_stats->rs_datalen)
++ return false;
++ /*
++ * rs_status follows rs_datalen so if rs_datalen is too large
++ * we can take a hint that hardware corrupted it, so ignore
++ * those frames.
++ */
++ if (rx_stats->rs_datalen > (common->rx_bufsize - rx_status_len))
++ return false;
++
++ /*
++ * rs_more indicates chained descriptors which can be used
++ * to link buffers together for a sort of scatter-gather
++ * operation.
++ * reject the frame, we don't support scatter-gather yet and
++ * the frame is probably corrupt anyway
++ */
++ if (rx_stats->rs_more)
++ return false;
++
++ /*
++ * The rx_stats->rs_status will not be set until the end of the
++ * chained descriptors so it can be ignored if rs_more is set. The
++ * rs_more will be false at the last element of the chained
++ * descriptors.
++ */
++ if (rx_stats->rs_status != 0) {
++ if (rx_stats->rs_status & ATH9K_RXERR_CRC)
++ rxs->flag |= RX_FLAG_FAILED_FCS_CRC;
++ if (rx_stats->rs_status & ATH9K_RXERR_PHY)
++ return false;
++
++ if (rx_stats->rs_status & ATH9K_RXERR_DECRYPT) {
++ *decrypt_error = true;
++ } else if (rx_stats->rs_status & ATH9K_RXERR_MIC) {
++ if (ieee80211_is_ctl(fc))
++ /*
++ * Sometimes, we get invalid
++ * MIC failures on valid control frames.
++ * Remove these mic errors.
++ */
++ rx_stats->rs_status &= ~ATH9K_RXERR_MIC;
++ else
++ rxs->flag |= RX_FLAG_MMIC_ERROR;
++ }
++ /*
++ * Reject error frames with the exception of
++ * decryption and MIC failures. For monitor mode,
++ * we also ignore the CRC error.
++ */
++ if (ah->opmode == NL80211_IFTYPE_MONITOR) {
++ if (rx_stats->rs_status &
++ ~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC |
++ ATH9K_RXERR_CRC))
++ return false;
++ } else {
++ if (rx_stats->rs_status &
++ ~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC)) {
++ return false;
++ }
++ }
++ }
++ return true;
++}
++
++static int ath9k_process_rate(struct ath_common *common,
++ struct ieee80211_hw *hw,
++ struct ath_rx_status *rx_stats,
++ struct ieee80211_rx_status *rxs)
++{
++ struct ieee80211_supported_band *sband;
++ enum ieee80211_band band;
++ unsigned int i = 0;
++
++ band = hw->conf.channel->band;
++ sband = hw->wiphy->bands[band];
++
++ if (rx_stats->rs_rate & 0x80) {
++ /* HT rate */
++ rxs->flag |= RX_FLAG_HT;
++ if (rx_stats->rs_flags & ATH9K_RX_2040)
++ rxs->flag |= RX_FLAG_40MHZ;
++ if (rx_stats->rs_flags & ATH9K_RX_GI)
++ rxs->flag |= RX_FLAG_SHORT_GI;
++ rxs->rate_idx = rx_stats->rs_rate & 0x7f;
++ return 0;
++ }
++
++ for (i = 0; i < sband->n_bitrates; i++) {
++ if (sband->bitrates[i].hw_value == rx_stats->rs_rate) {
++ rxs->rate_idx = i;
++ return 0;
++ }
++ if (sband->bitrates[i].hw_value_short == rx_stats->rs_rate) {
++ rxs->flag |= RX_FLAG_SHORTPRE;
++ rxs->rate_idx = i;
++ return 0;
++ }
++ }
++
++ /*
++ * No valid hardware bitrate found -- we should not get here
++ * because hardware has already validated this frame as OK.
++ */
++ ath_print(common, ATH_DBG_XMIT, "unsupported hw bitrate detected "
++ "0x%02x using 1 Mbit\n", rx_stats->rs_rate);
++
++ return -EINVAL;
++}
++
++static void ath9k_process_rssi(struct ath_common *common,
++ struct ieee80211_hw *hw,
++ struct ieee80211_hdr *hdr,
++ struct ath_rx_status *rx_stats)
++{
++ struct ath_hw *ah = common->ah;
++ struct ieee80211_sta *sta;
++ struct ath_node *an;
++ int last_rssi = ATH_RSSI_DUMMY_MARKER;
++ __le16 fc;
++
++ fc = hdr->frame_control;
++
++ rcu_read_lock();
++ /*
++ * XXX: use ieee80211_find_sta! This requires quite a bit of work
++ * under the current ath9k virtual wiphy implementation as we have
++ * no way of tying a vif to wiphy. Typically vifs are attached to
++ * at least one sdata of a wiphy on mac80211 but with ath9k virtual
++ * wiphy you'd have to iterate over every wiphy and each sdata.
++ */
++ sta = ieee80211_find_sta_by_hw(hw, hdr->addr2);
++ if (sta) {
++ an = (struct ath_node *) sta->drv_priv;
++ if (rx_stats->rs_rssi != ATH9K_RSSI_BAD &&
++ !rx_stats->rs_moreaggr)
++ ATH_RSSI_LPF(an->last_rssi, rx_stats->rs_rssi);
++ last_rssi = an->last_rssi;
++ }
++ rcu_read_unlock();
++
++ if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
++ rx_stats->rs_rssi = ATH_EP_RND(last_rssi,
++ ATH_RSSI_EP_MULTIPLIER);
++ if (rx_stats->rs_rssi < 0)
++ rx_stats->rs_rssi = 0;
++
++ /* Update Beacon RSSI, this is used by ANI. */
++ if (ieee80211_is_beacon(fc))
++ ah->stats.avgbrssi = rx_stats->rs_rssi;
++}
++
++/*
++ * For Decrypt or Demic errors, we only mark packet status here and always push
++ * up the frame up to let mac80211 handle the actual error case, be it no
++ * decryption key or real decryption error. This let us keep statistics there.
++ */
++static int ath9k_rx_skb_preprocess(struct ath_common *common,
++ struct ieee80211_hw *hw,
++ struct ieee80211_hdr *hdr,
++ struct ath_rx_status *rx_stats,
++ struct ieee80211_rx_status *rx_status,
++ bool *decrypt_error)
++{
++ struct ath_hw *ah = common->ah;
++
++ memset(rx_status, 0, sizeof(struct ieee80211_rx_status));
++
++ /*
++ * everything but the rate is checked here, the rate check is done
++ * separately to avoid doing two lookups for a rate for each frame.
++ */
++ if (!ath9k_rx_accept(common, hdr, rx_status, rx_stats, decrypt_error))
++ return -EINVAL;
++
++ ath9k_process_rssi(common, hw, hdr, rx_stats);
++
++ if (ath9k_process_rate(common, hw, rx_stats, rx_status))
++ return -EINVAL;
++
++ rx_status->mactime = ath9k_hw_extend_tsf(ah, rx_stats->rs_tstamp);
++ rx_status->band = hw->conf.channel->band;
++ rx_status->freq = hw->conf.channel->center_freq;
++ rx_status->signal = ATH_DEFAULT_NOISE_FLOOR + rx_stats->rs_rssi;
++ rx_status->antenna = rx_stats->rs_antenna;
++ rx_status->flag |= RX_FLAG_TSFT;
++
++ return 0;
++}
++
++static void ath9k_rx_skb_postprocess(struct ath_common *common,
++ struct sk_buff *skb,
++ struct ath_rx_status *rx_stats,
++ struct ieee80211_rx_status *rxs,
++ bool decrypt_error)
++{
++ struct ath_hw *ah = common->ah;
++ struct ieee80211_hdr *hdr;
++ int hdrlen, padpos, padsize;
++ u8 keyix;
++ __le16 fc;
++
++ /* see if any padding is done by the hw and remove it */
++ hdr = (struct ieee80211_hdr *) skb->data;
++ hdrlen = ieee80211_get_hdrlen_from_skb(skb);
++ fc = hdr->frame_control;
++ padpos = ath9k_cmn_padpos(hdr->frame_control);
++
++ /* The MAC header is padded to have 32-bit boundary if the
++ * packet payload is non-zero. The general calculation for
++ * padsize would take into account odd header lengths:
++ * padsize = (4 - padpos % 4) % 4; However, since only
++ * even-length headers are used, padding can only be 0 or 2
++ * bytes and we can optimize this a bit. In addition, we must
++ * not try to remove padding from short control frames that do
++ * not have payload. */
++ padsize = padpos & 3;
++ if (padsize && skb->len>=padpos+padsize+FCS_LEN) {
++ memmove(skb->data + padsize, skb->data, padpos);
++ skb_pull(skb, padsize);
++ }
++
++ keyix = rx_stats->rs_keyix;
++
++ if (!(keyix == ATH9K_RXKEYIX_INVALID) && !decrypt_error &&
++ ieee80211_has_protected(fc)) {
++ rxs->flag |= RX_FLAG_DECRYPTED;
++ } else if (ieee80211_has_protected(fc)
++ && !decrypt_error && skb->len >= hdrlen + 4) {
++ keyix = skb->data[hdrlen + 3] >> 6;
++
++ if (test_bit(keyix, common->keymap))
++ rxs->flag |= RX_FLAG_DECRYPTED;
++ }
++ if (ah->sw_mgmt_crypto &&
++ (rxs->flag & RX_FLAG_DECRYPTED) &&
++ ieee80211_is_mgmt(fc))
++ /* Use software decrypt for management frames. */
++ rxs->flag &= ~RX_FLAG_DECRYPTED;
++}
+
+ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
+ {
+@@ -829,6 +1086,7 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ struct ieee80211_rx_status *rxs;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
++ u32 *rx_desc = NULL;
+ /*
+ * The hw can techncically differ from common->hw when using ath9k
+ * virtual wiphy so to account for that we iterate over the active
+@@ -842,6 +1100,7 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ enum ath9k_rx_qtype qtype;
+ bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
+ int dma_type;
++ u8 rx_status_len = ah->caps.rx_status_len;
+
+ if (edma)
+ dma_type = DMA_FROM_DEVICE;
+@@ -869,7 +1128,7 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ if (!skb)
+ continue;
+
+- hdr = (struct ieee80211_hdr *) skb->data;
++ hdr = (struct ieee80211_hdr *) (skb->data + rx_status_len);
+ rxs = IEEE80211_SKB_RXCB(skb);
+
+ hw = ath_get_virt_hw(sc, hdr);
+@@ -883,8 +1142,8 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ if (flush)
+ goto requeue;
+
+- retval = ath9k_cmn_rx_skb_preprocess(common, hw, skb, &rs,
+- rxs, &decrypt_error);
++ retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs,
++ rxs, &decrypt_error);
+ if (retval)
+ goto requeue;
+
+@@ -905,11 +1164,23 @@ int ath_rx_tasklet(struct ath_softc *sc,
+ dma_type);
+
+ skb_put(skb, rs.rs_datalen + ah->caps.rx_status_len);
+- if (ah->caps.rx_status_len)
++ if (ah->caps.rx_status_len) {
++ rx_desc = kzalloc(ah->caps.rx_status_len, GFP_ATOMIC);
++ if (rx_desc == NULL)
++ BUG_ON(1);
++ memcpy(rx_desc, skb->data, ah->caps.rx_status_len);
+ skb_pull(skb, ah->caps.rx_status_len);
++ }
++
++ ath9k_rx_skb_postprocess(common, skb, &rs,
++ rxs, decrypt_error);
+
+- ath9k_cmn_rx_skb_postprocess(common, skb, &rs,
+- rxs, decrypt_error);
++ if (rx_desc) {
++ ath_pktlog_rx(sc, (void *) rx_desc, skb);
++ kfree(rx_desc);
++ } else {
++ ath_pktlog_rx(sc, bf->bf_desc, skb);
++ }
+
+ /* We will now give hardware our shiny new allocated skb */
+ bf->bf_mpdu = requeue_skb;
+--- a/drivers/net/wireless/ath/ath9k/reg.h
++++ b/drivers/net/wireless/ath/ath9k/reg.h
+@@ -222,6 +222,7 @@
+
+ #define AR_ISR_S2 0x008c
+ #define AR_ISR_S2_QCU_TXURN 0x000003FF
++#define AR_ISR_S2_BB_WATCHDOG 0x00010000
+ #define AR_ISR_S2_CST 0x00400000
+ #define AR_ISR_S2_GTT 0x00800000
+ #define AR_ISR_S2_TIM 0x01000000
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -418,6 +418,8 @@ static void ath_tx_complete_aggr(struct
+ list_move_tail(&bf->list, &bf_head);
+ }
+
++ ath9k_pktlog_txcomplete(sc, &bf_head, bf, bf_last);
++
+ if (!txpending) {
+ /*
+ * complete the acked-ones/xretried ones; update
+@@ -1728,6 +1730,8 @@ static int ath_tx_setup_buffer(struct ie
+ } else
+ bf->bf_isnullfunc = false;
+
++ bf->bf_tx_aborted = false;
++
+ return 0;
+ }
+
+@@ -1989,7 +1993,7 @@ static int ath_tx_num_badfrms(struct ath
+ int nbad = 0;
+ int isaggr = 0;
+
+- if (bf->bf_tx_aborted)
++ if (bf->bf_lastbf->bf_tx_aborted)
+ return 0;
+
+ isaggr = bf_isaggr(bf);
+@@ -2115,7 +2119,7 @@ static void ath_tx_processq(struct ath_s
+ ds = lastbf->bf_desc;
+
+ memset(&ts, 0, sizeof(ts));
+- status = ath9k_hw_txprocdesc(ah, ds, &ts);
++ status = ath9k_hw_txprocdesc(ah, ds, &ts, NULL);
+ if (status == -EINPROGRESS) {
+ spin_unlock_bh(&txq->axq_lock);
+ break;
+@@ -2165,10 +2169,14 @@ static void ath_tx_processq(struct ath_s
+ ath_tx_rc_status(bf, &ts, 0, txok, true);
+ }
+
+- if (bf_isampdu(bf))
++ if (bf_isampdu(bf)) {
+ ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, txok);
+- else
++ } else {
++ ath9k_pktlog_txctrl(sc, &bf_head, lastbf);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, txok, 0);
++ }
++
++ ath_pktlog_txstatus(sc, lastbf->bf_desc);
+
+ ath_wake_mac80211_queue(sc, txq);
+
+@@ -2240,9 +2248,11 @@ void ath_tx_edma_tasklet(struct ath_soft
+ struct list_head bf_head;
+ int status;
+ int txok;
++ u32 txs_desc[9];
+
+ for (;;) {
+- status = ath9k_hw_txprocdesc(ah, NULL, (void *)&txs);
++ status = ath9k_hw_txprocdesc(ah, NULL, (void *)&txs,
++ (void *) txs_desc);
+ if (status == -EINPROGRESS)
+ break;
+ if (status == -EIO) {
+@@ -2277,6 +2287,17 @@ void ath_tx_edma_tasklet(struct ath_soft
+
+ txok = !(txs.ts_status & ATH9K_TXERR_MASK);
+
++ /*
++ * Make sure null func frame is acked before configuring
++ * hw into ps mode.
++ */
++ if (bf->bf_isnullfunc && txok) {
++ if ((sc->ps_flags & PS_ENABLED))
++ ath9k_enable_ps(sc);
++ else
++ sc->ps_flags |= PS_NULLFUNC_COMPLETED;
++ }
++
+ if (!bf_isampdu(bf)) {
+ bf->bf_retries = txs.ts_longretry;
+ if (txs.ts_status & ATH9K_TXERR_XRETRY)
+@@ -2284,14 +2305,18 @@ void ath_tx_edma_tasklet(struct ath_soft
+ ath_tx_rc_status(bf, &txs, 0, txok, true);
+ }
+
+- if (bf_isampdu(bf))
++ if (bf_isampdu(bf)) {
+ ath_tx_complete_aggr(sc, txq, bf, &bf_head, &txs, txok);
+- else
++ } else {
++ ath9k_pktlog_txctrl(sc, &bf_head, lastbf);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head,
+ &txs, txok, 0);
++ }
+
+ ath_wake_mac80211_queue(sc, txq);
+
++ ath_pktlog_txstatus(sc, txs_desc);
++
+ spin_lock_bh(&txq->axq_lock);
+ if (!list_empty(&txq->txq_fifo_pending)) {
+ INIT_LIST_HEAD(&bf_head);
+--- a/net/mac80211/Kconfig
++++ b/net/mac80211/Kconfig
+@@ -33,6 +33,13 @@ config MAC80211_RC_MINSTREL
+ ---help---
+ This option enables the 'minstrel' TX rate control algorithm
+
++config MAC80211_RC_MINSTREL_HT
++ bool "Minstrel 802.11n support" if EMBEDDED
++ depends on MAC80211_RC_MINSTREL
++ default y
++ ---help---
++ This option enables the 'minstrel_ht' TX rate control algorithm
++
+ choice
+ prompt "Default rate control algorithm"
+ depends on MAC80211_HAS_RC
+--- a/net/mac80211/Makefile
++++ b/net/mac80211/Makefile
+@@ -51,7 +51,11 @@ rc80211_pid-$(CONFIG_MAC80211_DEBUGFS) +
+ rc80211_minstrel-y := rc80211_minstrel.o
+ rc80211_minstrel-$(CONFIG_MAC80211_DEBUGFS) += rc80211_minstrel_debugfs.o
+
++rc80211_minstrel_ht-y := rc80211_minstrel_ht.o
++rc80211_minstrel_ht-$(CONFIG_MAC80211_DEBUGFS) += rc80211_minstrel_ht_debugfs.o
++
+ mac80211-$(CONFIG_MAC80211_RC_PID) += $(rc80211_pid-y)
+ mac80211-$(CONFIG_MAC80211_RC_MINSTREL) += $(rc80211_minstrel-y)
++mac80211-$(CONFIG_MAC80211_RC_MINSTREL_HT) += $(rc80211_minstrel_ht-y)
+
+ ccflags-y += -D__CHECK_ENDIAN__
+--- a/net/mac80211/main.c
++++ b/net/mac80211/main.c
+@@ -710,6 +710,10 @@ static int __init ieee80211_init(void)
+ if (ret)
+ return ret;
+
++ ret = rc80211_minstrel_ht_init();
++ if (ret)
++ goto err_minstrel;
++
+ ret = rc80211_pid_init();
+ if (ret)
+ goto err_pid;
+@@ -722,6 +726,8 @@ static int __init ieee80211_init(void)
+ err_netdev:
+ rc80211_pid_exit();
+ err_pid:
++ rc80211_minstrel_ht_exit();
++ err_minstrel:
+ rc80211_minstrel_exit();
+
+ return ret;
+@@ -730,6 +736,7 @@ static int __init ieee80211_init(void)
+ static void __exit ieee80211_exit(void)
+ {
+ rc80211_pid_exit();
++ rc80211_minstrel_ht_exit();
+ rc80211_minstrel_exit();
+
+ /*
+--- a/net/mac80211/rate.h
++++ b/net/mac80211/rate.h
+@@ -147,5 +147,18 @@ static inline void rc80211_minstrel_exit
+ }
+ #endif
+
++#ifdef CONFIG_MAC80211_RC_MINSTREL_HT
++extern int rc80211_minstrel_ht_init(void);
++extern void rc80211_minstrel_ht_exit(void);
++#else
++static inline int rc80211_minstrel_ht_init(void)
++{
++ return 0;
++}
++static inline void rc80211_minstrel_ht_exit(void)
++{
++}
++#endif
++
+
+ #endif /* IEEE80211_RATE_H */
+--- /dev/null
++++ b/net/mac80211/rc80211_minstrel_ht.c
+@@ -0,0 +1,824 @@
++/*
++ * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++#include <linux/netdevice.h>
++#include <linux/types.h>
++#include <linux/skbuff.h>
++#include <linux/debugfs.h>
++#include <linux/random.h>
++#include <linux/ieee80211.h>
++#include <net/mac80211.h>
++#include "rate.h"
++#include "rc80211_minstrel.h"
++#include "rc80211_minstrel_ht.h"
++
++#define AVG_PKT_SIZE 1200
++#define SAMPLE_COLUMNS 10
++#define EWMA_LEVEL 75
++
++/* Number of bits for an average sized packet */
++#define MCS_NBITS (AVG_PKT_SIZE << 3)
++
++/* Number of symbols for a packet with (bps) bits per symbol */
++#define MCS_NSYMS(bps) ((MCS_NBITS + (bps) - 1) / (bps))
++
++/* Transmission time for a packet containing (syms) symbols */
++#define MCS_SYMBOL_TIME(sgi, syms) \
++ (sgi ? \
++ ((syms) * 18 + 4) / 5 : /* syms * 3.6 us */ \
++ (syms) << 2 /* syms * 4 us */ \
++ )
++
++/* Transmit duration for the raw data part of an average sized packet */
++#define MCS_DURATION(streams, sgi, bps) MCS_SYMBOL_TIME(sgi, MCS_NSYMS((streams) * (bps)))
++
++/* MCS rate information for an MCS group */
++#define MCS_GROUP(_streams, _sgi, _ht40) { \
++ .streams = _streams, \
++ .flags = \
+ (_sgi ? IEEE80211_TX_RC_SHORT_GI : 0) | \
+ (_ht40 ? IEEE80211_TX_RC_40_MHZ_WIDTH : 0), \
+ .duration = { \
+
+ debugfs_remove(msp->dbg_stats);
+}
---- a/net/wireless/scan.c
-+++ b/net/wireless/scan.c
-@@ -525,7 +525,7 @@ cfg80211_inform_bss(struct wiphy *wiphy,
-
- privsz = wiphy->bss_priv_size;
-
-- if (WARN_ON(wiphy->signal_type == NL80211_BSS_SIGNAL_UNSPEC &&
-+ if (WARN_ON(wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC &&
- (signal < 0 || signal > 100)))
- return NULL;
-
-@@ -581,7 +581,7 @@ cfg80211_inform_bss_frame(struct wiphy *
- u.probe_resp.variable);
- size_t privsz = wiphy->bss_priv_size;
-
-- if (WARN_ON(wiphy->signal_type == NL80211_BSS_SIGNAL_UNSPEC &&
-+ if (WARN_ON(wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC &&
- (signal < 0 || signal > 100)))
- return NULL;
-
---- a/net/wireless/chan.c
-+++ b/net/wireless/chan.c
-@@ -50,7 +50,7 @@ int cfg80211_set_freq(struct cfg80211_re
- struct ieee80211_channel *chan;
- int result;
-
-- if (wdev->iftype == NL80211_IFTYPE_MONITOR)
-+ if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR)
- wdev = NULL;
-
- if (wdev) {
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