Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/linville/wireless-next-2.6

drivers/net/wireless/ath/ar9170/main.c

@@ -1293,7 +1293,9 @@ static void ar9170_op_stop(struct ieee80211_hw *hw)
 	flush_workqueue(ar->hw->workqueue);
 
 	cancel_delayed_work_sync(&ar->tx_janitor);
+#ifdef CONFIG_AR9170_LEDS
 	cancel_delayed_work_sync(&ar->led_work);
+#endif
 	cancel_work_sync(&ar->filter_config_work);
 	cancel_work_sync(&ar->beacon_work);
 	mutex_lock(&ar->mutex);

drivers/net/wireless/ath/ath9k/Kconfig

@@ -18,6 +18,6 @@ config ATH9K_DEBUG
 	  Say Y, if you need ath9k to display debug messages.
 	  Pass the debug mask as a module parameter:
 
-	  modprobe ath9k debug=0x00002000
+	  modprobe ath9k debug=0x00000200
 
-	  Look in ath9k/core.h for possible debug masks
+	  Look in ath9k/debug.h for possible debug masks

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -190,12 +190,9 @@ void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd,
 #define ATH_AGGR_MIN_QDEPTH        2
 #define ATH_AMPDU_SUBFRAME_DEFAULT 32
 #define ATH_AMPDU_LIMIT_MAX        (64 * 1024 - 1)
-#define ATH_AMPDU_LIMIT_DEFAULT    ATH_AMPDU_LIMIT_MAX
 
 #define IEEE80211_SEQ_SEQ_SHIFT    4
 #define IEEE80211_SEQ_MAX          4096
-#define IEEE80211_MIN_AMPDU_BUF    0x8
-#define IEEE80211_HTCAP_MAXRXAMPDU_FACTOR 13
 #define IEEE80211_WEP_IVLEN        3
 #define IEEE80211_WEP_KIDLEN       1
 #define IEEE80211_WEP_CRCLEN       4
@@ -240,7 +237,6 @@ struct ath_txq {
 	spinlock_t axq_lock;
 	u32 axq_depth;
 	u8 axq_aggr_depth;
-	u32 axq_totalqueued;
 	bool stopped;
 	bool axq_tx_inprogress;
 	struct ath_buf *axq_linkbuf;
@@ -365,9 +361,9 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 void ath_tx_tasklet(struct ath_softc *sc);
 void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb);
 bool ath_tx_aggr_check(struct ath_softc *sc, struct ath_node *an, u8 tidno);
-int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
-		      u16 tid, u16 *ssn);
-int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
+void ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
+		       u16 tid, u16 *ssn);
+void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
 void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
 
 /********/
@@ -576,6 +572,7 @@ struct ath_softc {
 	u32 keymax;
 	DECLARE_BITMAP(keymap, ATH_KEYMAX);
 	u8 splitmic;
+	bool ps_enabled;
 	unsigned long ps_usecount;
 	enum ath9k_int imask;
 	enum ath9k_ht_extprotspacing ht_extprotspacing;

drivers/net/wireless/ath/ath9k/calib.c

@@ -116,7 +116,7 @@ static void ath9k_hw_do_getnf(struct ath_hw *ah,
 				"NF calibrated [ctl] [chain 1] is %d\n", nf);
 		nfarray[1] = nf;
 
-		if (!AR_SREV_9280(ah)) {
+		if (!AR_SREV_9280(ah) && !AR_SREV_9287(ah)) {
 			nf = MS(REG_READ(ah, AR_PHY_CH2_CCA),
 					AR_PHY_CH2_MINCCA_PWR);
 			if (nf & 0x100)
@@ -154,7 +154,7 @@ static void ath9k_hw_do_getnf(struct ath_hw *ah,
 				"NF calibrated [ext] [chain 1] is %d\n", nf);
 		nfarray[4] = nf;
 
-		if (!AR_SREV_9280(ah)) {
+		if (!AR_SREV_9280(ah) && !AR_SREV_9287(ah)) {
 			nf = MS(REG_READ(ah, AR_PHY_CH2_EXT_CCA),
 					AR_PHY_CH2_EXT_MINCCA_PWR);
 			if (nf & 0x100)
@@ -613,7 +613,7 @@ void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
 
 	if (AR_SREV_9285(ah))
 		chainmask = 0x9;
-	else if (AR_SREV_9280(ah))
+	else if (AR_SREV_9280(ah) || AR_SREV_9287(ah))
 		chainmask = 0x1B;
 	else
 		chainmask = 0x3F;
@@ -873,7 +873,7 @@ bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
 		if (AR_SREV_9285_11_OR_LATER(ah))
 			ath9k_hw_9285_pa_cal(ah);
 
-		if (OLC_FOR_AR9280_20_LATER)
+		if (OLC_FOR_AR9280_20_LATER || OLC_FOR_AR9287_10_LATER)
 			ath9k_olc_temp_compensation(ah);
 		ath9k_hw_getnf(ah, chan);
 		ath9k_hw_loadnf(ah, ah->curchan);
@@ -929,8 +929,11 @@ bool ath9k_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan)
 			return false;
 	} else {
 		if (AR_SREV_9280_10_OR_LATER(ah)) {
-			REG_CLR_BIT(ah, AR_PHY_ADC_CTL, AR_PHY_ADC_CTL_OFF_PWDADC);
-			REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL);
+			if (!AR_SREV_9287_10_OR_LATER(ah))
+				REG_CLR_BIT(ah, AR_PHY_ADC_CTL,
+					    AR_PHY_ADC_CTL_OFF_PWDADC);
+			REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
+				    AR_PHY_AGC_CONTROL_FLTR_CAL);
 		}
 
 		/* Calibrate the AGC */
@@ -948,8 +951,11 @@ bool ath9k_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan)
 		}
 
 		if (AR_SREV_9280_10_OR_LATER(ah)) {
-			REG_SET_BIT(ah, AR_PHY_ADC_CTL, AR_PHY_ADC_CTL_OFF_PWDADC);
-			REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL);
+			if (!AR_SREV_9287_10_OR_LATER(ah))
+				REG_SET_BIT(ah, AR_PHY_ADC_CTL,
+					    AR_PHY_ADC_CTL_OFF_PWDADC);
+			REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
+				    AR_PHY_AGC_CONTROL_FLTR_CAL);
 		}
 	}
 

drivers/net/wireless/ath/ath9k/debug.c

@@ -486,6 +486,83 @@ static const struct file_operations fops_wiphy = {
 	.owner = THIS_MODULE
 };
 
+#define PR(str, elem)							\
+	do {								\
+		len += snprintf(buf + len, size - len,			\
+				"%s%13u%11u%10u%10u\n", str,		\
+		sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
+		sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
+		sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
+		sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
+} while(0)
+
+static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
+			      size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	char *buf;
+	unsigned int len = 0, size = 2048;
+	ssize_t retval = 0;
+
+	buf = kzalloc(size, GFP_KERNEL);
+	if (buf == NULL)
+		return 0;
+
+	len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
+
+	PR("MPDUs Queued:    ", queued);
+	PR("MPDUs Completed: ", completed);
+	PR("Aggregates:      ", a_aggr);
+	PR("AMPDUs Queued:   ", a_queued);
+	PR("AMPDUs Completed:", a_completed);
+	PR("AMPDUs Retried:  ", a_retries);
+	PR("AMPDUs XRetried: ", a_xretries);
+	PR("FIFO Underrun:   ", fifo_underrun);
+	PR("TXOP Exceeded:   ", xtxop);
+	PR("TXTIMER Expiry:  ", timer_exp);
+	PR("DESC CFG Error:  ", desc_cfg_err);
+	PR("DATA Underrun:   ", data_underrun);
+	PR("DELIM Underrun:  ", delim_underrun);
+
+	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	kfree(buf);
+
+	return retval;
+}
+
+void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
+		       struct ath_buf *bf)
+{
+	struct ath_desc *ds = bf->bf_desc;
+
+	if (bf_isampdu(bf)) {
+		if (bf_isxretried(bf))
+			TX_STAT_INC(txq->axq_qnum, a_xretries);
+		else
+			TX_STAT_INC(txq->axq_qnum, a_completed);
+	} else {
+		TX_STAT_INC(txq->axq_qnum, completed);
+	}
+
+	if (ds->ds_txstat.ts_status & ATH9K_TXERR_FIFO)
+		TX_STAT_INC(txq->axq_qnum, fifo_underrun);
+	if (ds->ds_txstat.ts_status & ATH9K_TXERR_XTXOP)
+		TX_STAT_INC(txq->axq_qnum, xtxop);
+	if (ds->ds_txstat.ts_status & ATH9K_TXERR_TIMER_EXPIRED)
+		TX_STAT_INC(txq->axq_qnum, timer_exp);
+	if (ds->ds_txstat.ts_flags & ATH9K_TX_DESC_CFG_ERR)
+		TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
+	if (ds->ds_txstat.ts_flags & ATH9K_TX_DATA_UNDERRUN)
+		TX_STAT_INC(txq->axq_qnum, data_underrun);
+	if (ds->ds_txstat.ts_flags & ATH9K_TX_DELIM_UNDERRUN)
+		TX_STAT_INC(txq->axq_qnum, delim_underrun);
+}
+
+static const struct file_operations fops_xmit = {
+	.read = read_file_xmit,
+	.open = ath9k_debugfs_open,
+	.owner = THIS_MODULE
+};
 
 int ath9k_init_debug(struct ath_softc *sc)
 {
@@ -529,6 +606,13 @@ int ath9k_init_debug(struct ath_softc *sc)
 	if (!sc->debug.debugfs_wiphy)
 		goto err;
 
+	sc->debug.debugfs_xmit = debugfs_create_file("xmit",
+						     S_IRUSR,
+						     sc->debug.debugfs_phy,
+						     sc, &fops_xmit);
+	if (!sc->debug.debugfs_xmit)
+		goto err;
+
 	return 0;
 err:
 	ath9k_exit_debug(sc);
@@ -537,6 +621,7 @@ int ath9k_init_debug(struct ath_softc *sc)
 
 void ath9k_exit_debug(struct ath_softc *sc)
 {
+	debugfs_remove(sc->debug.debugfs_xmit);
 	debugfs_remove(sc->debug.debugfs_wiphy);
 	debugfs_remove(sc->debug.debugfs_rcstat);
 	debugfs_remove(sc->debug.debugfs_interrupt);

drivers/net/wireless/ath/ath9k/debug.h

@@ -35,6 +35,15 @@ enum ATH_DEBUG {
 
 #define DBG_DEFAULT (ATH_DBG_FATAL)
 
+struct ath_txq;
+struct ath_buf;
+
+#ifdef CONFIG_ATH9K_DEBUG
+#define TX_STAT_INC(q, c) sc->debug.stats.txstats[q].c++
+#else
+#define TX_STAT_INC(q, c) do { } while (0)
+#endif
+
 #ifdef CONFIG_ATH9K_DEBUG
 
 /**
@@ -87,9 +96,45 @@ struct ath_rc_stats {
 	u8 per;
 };
 
+/**
+ * struct ath_tx_stats - Statistics about TX
+ * @queued: Total MPDUs (non-aggr) queued
+ * @completed: Total MPDUs (non-aggr) completed
+ * @a_aggr: Total no. of aggregates queued
+ * @a_queued: Total AMPDUs queued
+ * @a_completed: Total AMPDUs completed
+ * @a_retries: No. of AMPDUs retried (SW)
+ * @a_xretries: No. of AMPDUs dropped due to xretries
+ * @fifo_underrun: FIFO underrun occurrences
+	Valid only for:
+		- non-aggregate condition.
+		- first packet of aggregate.
+ * @xtxop: No. of frames filtered because of TXOP limit
+ * @timer_exp: Transmit timer expiry
+ * @desc_cfg_err: Descriptor configuration errors
+ * @data_urn: TX data underrun errors
+ * @delim_urn: TX delimiter underrun errors
+ */
+struct ath_tx_stats {
+	u32 queued;
+	u32 completed;
+	u32 a_aggr;
+	u32 a_queued;
+	u32 a_completed;
+	u32 a_retries;
+	u32 a_xretries;
+	u32 fifo_underrun;
+	u32 xtxop;
+	u32 timer_exp;
+	u32 desc_cfg_err;
+	u32 data_underrun;
+	u32 delim_underrun;
+};
+
 struct ath_stats {
 	struct ath_interrupt_stats istats;
 	struct ath_rc_stats rcstats[RATE_TABLE_SIZE];
+	struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
 };
 
 struct ath9k_debug {
@@ -100,6 +145,7 @@ struct ath9k_debug {
 	struct dentry *debugfs_interrupt;
 	struct dentry *debugfs_rcstat;
 	struct dentry *debugfs_wiphy;
+	struct dentry *debugfs_xmit;
 	struct ath_stats stats;
 };
 
@@ -110,6 +156,8 @@ int ath9k_debug_create_root(void);
 void ath9k_debug_remove_root(void);
 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb);
+void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
+		       struct ath_buf *bf);
 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 			    int xretries, int retries, u8 per);
 
@@ -148,6 +196,12 @@ static inline void ath_debug_stat_rc(struct ath_softc *sc,
 {
 }
 
+static inline void ath_debug_stat_tx(struct ath_softc *sc,
+				     struct ath_txq *txq,
+				     struct ath_buf *bf)
+{
+}
+
 static inline void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 					  int xretries, int retries, u8 per)
 {