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 enum ATH_DEBUG {
  21         ATH_DBG_RESET           = 0x00000001,
  22         ATH_DBG_QUEUE           = 0x00000002,
  23         ATH_DBG_EEPROM          = 0x00000004,
  24         ATH_DBG_CALIBRATE       = 0x00000008,
  25         ATH_DBG_INTERRUPT       = 0x00000010,
  26         ATH_DBG_REGULATORY      = 0x00000020,
  27         ATH_DBG_ANI             = 0x00000040,
  28         ATH_DBG_XMIT            = 0x00000080,
  29         ATH_DBG_BEACON          = 0x00000100,
  30         ATH_DBG_CONFIG          = 0x00000200,
  31         ATH_DBG_FATAL           = 0x00000400,
  32         ATH_DBG_PS              = 0x00000800,
  33         ATH_DBG_HWTIMER         = 0x00001000,
  34         ATH_DBG_BTCOEX          = 0x00002000,
  35         ATH_DBG_ANY             = 0xffffffff
  36 };
  37
  38 #define DBG_DEFAULT (ATH_DBG_FATAL)
  39
  40 struct ath_txq;
  41 struct ath_buf;
  42
  43 #ifdef CONFIG_ATH9K_DEBUG
  44 #define TX_STAT_INC(q, c) sc->debug.stats.txstats[q].c++
  45 #else
  46 #define TX_STAT_INC(q, c) do { } while (0)
  47 #endif
  48
  49 #ifdef CONFIG_ATH9K_DEBUG
  50
  51 /**
  52  * struct ath_interrupt_stats - Contains statistics about interrupts
  53  * @total: Total no. of interrupts generated so far
  54  * @rxok: RX with no errors
  55  * @rxeol: RX with no more RXDESC available
  56  * @rxorn: RX FIFO overrun
  57  * @txok: TX completed at the requested rate
  58  * @txurn: TX FIFO underrun
  59  * @mib: MIB regs reaching its threshold
  60  * @rxphyerr: RX with phy errors
  61  * @rx_keycache_miss: RX with key cache misses
  62  * @swba: Software Beacon Alert
  63  * @bmiss: Beacon Miss
  64  * @bnr: Beacon Not Ready
  65  * @cst: Carrier Sense TImeout
  66  * @gtt: Global TX Timeout
  67  * @tim: RX beacon TIM occurrence
  68  * @cabend: RX End of CAB traffic
  69  * @dtimsync: DTIM sync lossage
  70  * @dtim: RX Beacon with DTIM
  71  */
  72 struct ath_interrupt_stats {
  73         u32 total;
  74         u32 rxok;
  75         u32 rxeol;
  76         u32 rxorn;
  77         u32 txok;
  78         u32 txeol;
  79         u32 txurn;
  80         u32 mib;
  81         u32 rxphyerr;
  82         u32 rx_keycache_miss;
  83         u32 swba;
  84         u32 bmiss;
  85         u32 bnr;
  86         u32 cst;
  87         u32 gtt;
  88         u32 tim;
  89         u32 cabend;
  90         u32 dtimsync;
  91         u32 dtim;
  92 };
  93
  94 struct ath_rc_stats {
  95         u32 success;
  96         u32 retries;
  97         u32 xretries;
  98         u8 per;
  99 };
 100
 101 /**
 102  * struct ath_tx_stats - Statistics about TX
 103  * @queued: Total MPDUs (non-aggr) queued
 104  * @completed: Total MPDUs (non-aggr) completed
 105  * @a_aggr: Total no. of aggregates queued
 106  * @a_queued: Total AMPDUs queued
 107  * @a_completed: Total AMPDUs completed
 108  * @a_retries: No. of AMPDUs retried (SW)
 109  * @a_xretries: No. of AMPDUs dropped due to xretries
 110  * @fifo_underrun: FIFO underrun occurrences
 111         Valid only for:
 112                 - non-aggregate condition.
 113                 - first packet of aggregate.
 114  * @xtxop: No. of frames filtered because of TXOP limit
 115  * @timer_exp: Transmit timer expiry
 116  * @desc_cfg_err: Descriptor configuration errors
 117  * @data_urn: TX data underrun errors
 118  * @delim_urn: TX delimiter underrun errors
 119  */
 120 struct ath_tx_stats {
 121         u32 queued;
 122         u32 completed;
 123         u32 a_aggr;
 124         u32 a_queued;
 125         u32 a_completed;
 126         u32 a_retries;
 127         u32 a_xretries;
 128         u32 fifo_underrun;
 129         u32 xtxop;
 130         u32 timer_exp;
 131         u32 desc_cfg_err;
 132         u32 data_underrun;
 133         u32 delim_underrun;
 134 };
 135
 136 struct ath_stats {
 137         struct ath_interrupt_stats istats;
 138         struct ath_rc_stats rcstats[RATE_TABLE_SIZE];
 139         struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
 140 };
 141
 142 struct ath9k_debug {
 143         int debug_mask;
 144         struct dentry *debugfs_phy;
 145         struct dentry *debugfs_debug;
 146         struct dentry *debugfs_dma;
 147         struct dentry *debugfs_interrupt;
 148         struct dentry *debugfs_rcstat;
 149         struct dentry *debugfs_wiphy;
 150         struct dentry *debugfs_xmit;
 151         struct ath_stats stats;
 152 };
 153
 154 void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...);
 155 int ath9k_init_debug(struct ath_softc *sc);
 156 void ath9k_exit_debug(struct ath_softc *sc);
 157 int ath9k_debug_create_root(void);
 158 void ath9k_debug_remove_root(void);
 159 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 160 void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb);
 161 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
 162                        struct ath_buf *bf);
 163 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 164                             int xretries, int retries, u8 per);
 165
 166 #else
 167
 168 static inline void DPRINTF(struct ath_softc *sc, int dbg_mask,
 169                            const char *fmt, ...)
 170 {
 171 }
 172
 173 static inline int ath9k_init_debug(struct ath_softc *sc)
 174 {
 175         return 0;
 176 }
 177
 178 static inline void ath9k_exit_debug(struct ath_softc *sc)
 179 {
 180 }
 181
 182 static inline int ath9k_debug_create_root(void)
 183 {
 184         return 0;
 185 }
 186
 187 static inline void ath9k_debug_remove_root(void)
 188 {
 189 }
 190
 191 static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
 192                                             enum ath9k_int status)
 193 {
 194 }
 195
 196 static inline void ath_debug_stat_rc(struct ath_softc *sc,
 197                                      struct sk_buff *skb)
 198 {
 199 }
 200
 201 static inline void ath_debug_stat_tx(struct ath_softc *sc,
 202                                      struct ath_txq *txq,
 203                                      struct ath_buf *bf)
 204 {
 205 }
 206
 207 static inline void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 208                                           int xretries, int retries, u8 per)
 209 {
 210 }
 211
 212 #endif /* CONFIG_ATH9K_DEBUG */
 213
 214 #endif /* DEBUG_H */