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_DEBUG
  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_DEBUG
  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  * @rxeol: RX with no more RXDESC available
  39  * @rxorn: RX FIFO overrun
  40  * @txok: TX completed at the requested rate
  41  * @txurn: TX FIFO underrun
  42  * @mib: MIB regs reaching its threshold
  43  * @rxphyerr: RX with phy errors
  44  * @rx_keycache_miss: RX with key cache misses
  45  * @swba: Software Beacon Alert
  46  * @bmiss: Beacon Miss
  47  * @bnr: Beacon Not Ready
  48  * @cst: Carrier Sense TImeout
  49  * @gtt: Global TX Timeout
  50  * @tim: RX beacon TIM occurrence
  51  * @cabend: RX End of CAB traffic
  52  * @dtimsync: DTIM sync lossage
  53  * @dtim: RX Beacon with DTIM
  54  */
  55 struct ath_interrupt_stats {
  56         u32 total;
  57         u32 rxok;
  58         u32 rxeol;
  59         u32 rxorn;
  60         u32 txok;
  61         u32 txeol;
  62         u32 txurn;
  63         u32 mib;
  64         u32 rxphyerr;
  65         u32 rx_keycache_miss;
  66         u32 swba;
  67         u32 bmiss;
  68         u32 bnr;
  69         u32 cst;
  70         u32 gtt;
  71         u32 tim;
  72         u32 cabend;
  73         u32 dtimsync;
  74         u32 dtim;
  75 };
  76
  77 struct ath_rc_stats {
  78         u32 success;
  79         u32 retries;
  80         u32 xretries;
  81         u8 per;
  82 };
  83
  84 /**
  85  * struct ath_tx_stats - Statistics about TX
  86  * @queued: Total MPDUs (non-aggr) queued
  87  * @completed: Total MPDUs (non-aggr) completed
  88  * @a_aggr: Total no. of aggregates queued
  89  * @a_queued: Total AMPDUs queued
  90  * @a_completed: Total AMPDUs completed
  91  * @a_retries: No. of AMPDUs retried (SW)
  92  * @a_xretries: No. of AMPDUs dropped due to xretries
  93  * @fifo_underrun: FIFO underrun occurrences
  94         Valid only for:
  95                 - non-aggregate condition.
  96                 - first packet of aggregate.
  97  * @xtxop: No. of frames filtered because of TXOP limit
  98  * @timer_exp: Transmit timer expiry
  99  * @desc_cfg_err: Descriptor configuration errors
 100  * @data_urn: TX data underrun errors
 101  * @delim_urn: TX delimiter underrun errors
 102  */
 103 struct ath_tx_stats {
 104         u32 queued;
 105         u32 completed;
 106         u32 a_aggr;
 107         u32 a_queued;
 108         u32 a_completed;
 109         u32 a_retries;
 110         u32 a_xretries;
 111         u32 fifo_underrun;
 112         u32 xtxop;
 113         u32 timer_exp;
 114         u32 desc_cfg_err;
 115         u32 data_underrun;
 116         u32 delim_underrun;
 117 };
 118
 119 struct ath_stats {
 120         struct ath_interrupt_stats istats;
 121         struct ath_rc_stats rcstats[RATE_TABLE_SIZE];
 122         struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
 123 };
 124
 125 struct ath9k_debug {
 126         struct dentry *debugfs_phy;
 127         struct dentry *debugfs_debug;
 128         struct dentry *debugfs_dma;
 129         struct dentry *debugfs_interrupt;
 130         struct dentry *debugfs_rcstat;
 131         struct dentry *debugfs_wiphy;
 132         struct dentry *debugfs_xmit;
 133         struct ath_stats stats;
 134 };
 135
 136 int ath9k_init_debug(struct ath_hw *ah);
 137 void ath9k_exit_debug(struct ath_hw *ah);
 138
 139 int ath9k_debug_create_root(void);
 140 void ath9k_debug_remove_root(void);
 141 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 142 void ath_debug_stat_rc(struct ath_softc *sc, int final_rate);
 143 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
 144                        struct ath_buf *bf);
 145 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 146                             int xretries, int retries, u8 per);
 147
 148 #else
 149
 150 static inline int ath9k_init_debug(struct ath_hw *ah)
 151 {
 152         return 0;
 153 }
 154
 155 static inline void ath9k_exit_debug(struct ath_hw *ah)
 156 {
 157 }
 158
 159 static inline int ath9k_debug_create_root(void)
 160 {
 161         return 0;
 162 }
 163
 164 static inline void ath9k_debug_remove_root(void)
 165 {
 166 }
 167
 168 static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
 169                                             enum ath9k_int status)
 170 {
 171 }
 172
 173 static inline void ath_debug_stat_rc(struct ath_softc *sc,
 174                                      int final_rate)
 175 {
 176 }
 177
 178 static inline void ath_debug_stat_tx(struct ath_softc *sc,
 179                                      struct ath_txq *txq,
 180                                      struct ath_buf *bf)
 181 {
 182 }
 183
 184 static inline void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 185                                           int xretries, int retries, u8 per)
 186 {
 187 }
 188
 189 #endif /* CONFIG_ATH9K_DEBUG */
 190
 191 #endif /* DEBUG_H */