release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/net/wireless/ath/ath9k/debug.h

   1 /*
   2  * Copyright (c) 2008-2009 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef DEBUG_H
  18 #define DEBUG_H
  19
  20 #include "hw.h"
  21 #include "rc.h"
  22
  23 struct ath_txq;
  24 struct ath_buf;
  25
  26 #ifdef CONFIG_ATH9K_DEBUGFS
  27 #define TX_STAT_INC(q, c) sc->debug.stats.txstats[q].c++
  28 #else
  29 #define TX_STAT_INC(q, c) do { } while (0)
  30 #endif
  31
  32 #ifdef CONFIG_ATH9K_DEBUGFS
  33
  34 /**
  35  * struct ath_interrupt_stats - Contains statistics about interrupts
  36  * @total: Total no. of interrupts generated so far
  37  * @rxok: RX with no errors
  38  * @rxlp: RX with low priority RX
  39  * @rxhp: RX with high priority, uapsd only
  40  * @rxeol: RX with no more RXDESC available
  41  * @rxorn: RX FIFO overrun
  42  * @txok: TX completed at the requested rate
  43  * @txurn: TX FIFO underrun
  44  * @mib: MIB regs reaching its threshold
  45  * @rxphyerr: RX with phy errors
  46  * @rx_keycache_miss: RX with key cache misses
  47  * @swba: Software Beacon Alert
  48  * @bmiss: Beacon Miss
  49  * @bnr: Beacon Not Ready
  50  * @cst: Carrier Sense TImeout
  51  * @gtt: Global TX Timeout
  52  * @tim: RX beacon TIM occurrence
  53  * @cabend: RX End of CAB traffic
  54  * @dtimsync: DTIM sync lossage
  55  * @dtim: RX Beacon with DTIM
  56  * @bb_watchdog: Baseband watchdog
  57  */
  58 struct ath_interrupt_stats {
  59         u32 total;
  60         u32 rxok;
  61         u32 rxlp;
  62         u32 rxhp;
  63         u32 rxeol;
  64         u32 rxorn;
  65         u32 txok;
  66         u32 txeol;
  67         u32 txurn;
  68         u32 mib;
  69         u32 rxphyerr;
  70         u32 rx_keycache_miss;
  71         u32 swba;
  72         u32 bmiss;
  73         u32 bnr;
  74         u32 cst;
  75         u32 gtt;
  76         u32 tim;
  77         u32 cabend;
  78         u32 dtimsync;
  79         u32 dtim;
  80         u32 bb_watchdog;
  81 };
  82
  83 struct ath_rc_stats {
  84         u32 success;
  85         u32 retries;
  86         u32 xretries;
  87         u8 per;
  88 };
  89
  90 /**
  91  * struct ath_tx_stats - Statistics about TX
  92  * @queued: Total MPDUs (non-aggr) queued
  93  * @completed: Total MPDUs (non-aggr) completed
  94  * @a_aggr: Total no. of aggregates queued
  95  * @a_queued: Total AMPDUs queued
  96  * @a_completed: Total AMPDUs completed
  97  * @a_retries: No. of AMPDUs retried (SW)
  98  * @a_xretries: No. of AMPDUs dropped due to xretries
  99  * @fifo_underrun: FIFO underrun occurrences
 100         Valid only for:
 101                 - non-aggregate condition.
 102                 - first packet of aggregate.
 103  * @xtxop: No. of frames filtered because of TXOP limit
 104  * @timer_exp: Transmit timer expiry
 105  * @desc_cfg_err: Descriptor configuration errors
 106  * @data_urn: TX data underrun errors
 107  * @delim_urn: TX delimiter underrun errors
 108  */
 109 struct ath_tx_stats {
 110         u32 queued;
 111         u32 completed;
 112         u32 a_aggr;
 113         u32 a_queued;
 114         u32 a_completed;
 115         u32 a_retries;
 116         u32 a_xretries;
 117         u32 fifo_underrun;
 118         u32 xtxop;
 119         u32 timer_exp;
 120         u32 desc_cfg_err;
 121         u32 data_underrun;
 122         u32 delim_underrun;
 123 };
 124
 125 /**
 126  * struct ath_rx_stats - RX Statistics
 127  * @crc_err: No. of frames with incorrect CRC value
 128  * @decrypt_crc_err: No. of frames whose CRC check failed after
 129         decryption process completed
 130  * @phy_err: No. of frames whose reception failed because the PHY
 131         encountered an error
 132  * @mic_err: No. of frames with incorrect TKIP MIC verification failure
 133  * @pre_delim_crc_err: Pre-Frame delimiter CRC error detections
 134  * @post_delim_crc_err: Post-Frame delimiter CRC error detections
 135  * @decrypt_busy_err: Decryption interruptions counter
 136  * @phy_err_stats: Individual PHY error statistics
 137  */
 138 struct ath_rx_stats {
 139         u32 crc_err;
 140         u32 decrypt_crc_err;
 141         u32 phy_err;
 142         u32 mic_err;
 143         u32 pre_delim_crc_err;
 144         u32 post_delim_crc_err;
 145         u32 decrypt_busy_err;
 146         u32 phy_err_stats[ATH9K_PHYERR_MAX];
 147 };
 148
 149 struct ath_stats {
 150         struct ath_interrupt_stats istats;
 151         struct ath_rc_stats rcstats[RATE_TABLE_SIZE];
 152         struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
 153         struct ath_rx_stats rxstats;
 154 };
 155
 156 struct ath9k_debug {
 157         struct dentry *debugfs_phy;
 158         u32 regidx;
 159         struct ath_stats stats;
 160 };
 161
 162 int ath9k_init_debug(struct ath_hw *ah);
 163 void ath9k_exit_debug(struct ath_hw *ah);
 164
 165 int ath9k_debug_create_root(void);
 166 void ath9k_debug_remove_root(void);
 167 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 168 void ath_debug_stat_rc(struct ath_softc *sc, int final_rate);
 169 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
 170                        struct ath_buf *bf, struct ath_tx_status *ts);
 171 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs);
 172 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 173                             int xretries, int retries, u8 per);
 174
 175 #else
 176
 177 static inline int ath9k_init_debug(struct ath_hw *ah)
 178 {
 179         return 0;
 180 }
 181
 182 static inline void ath9k_exit_debug(struct ath_hw *ah)
 183 {
 184 }
 185
 186 static inline int ath9k_debug_create_root(void)
 187 {
 188         return 0;
 189 }
 190
 191 static inline void ath9k_debug_remove_root(void)
 192 {
 193 }
 194
 195 static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
 196                                             enum ath9k_int status)
 197 {
 198 }
 199
 200 static inline void ath_debug_stat_rc(struct ath_softc *sc,
 201                                      int final_rate)
 202 {
 203 }
 204
 205 static inline void ath_debug_stat_tx(struct ath_softc *sc,
 206                                      struct ath_txq *txq,
 207                                      struct ath_buf *bf,
 208                                      struct ath_tx_status *ts)
 209 {
 210 }
 211
 212 static inline void ath_debug_stat_rx(struct ath_softc *sc,
 213                                      struct ath_rx_status *rs)
 214 {
 215 }
 216
 217 static inline void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 218                                           int xretries, int retries, u8 per)
 219 {
 220 }
 221
 222 #endif /* CONFIG_ATH9K_DEBUGFS */
 223
 224 #endif /* DEBUG_H */