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

   1 /*
   2  * Copyright (c) 2008-2011 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 #include "dfs_debug.h"
  23
  24 struct ath_txq;
  25 struct ath_buf;
  26
  27 #ifdef CONFIG_ATH9K_DEBUGFS
  28 #define TX_STAT_INC(q, c) sc->debug.stats.txstats[q].c++
  29 #define RESET_STAT_INC(sc, type) sc->debug.stats.reset[type]++
  30 #else
  31 #define TX_STAT_INC(q, c) do { } while (0)
  32 #define RESET_STAT_INC(sc, type) do { } while (0)
  33 #endif
  34
  35 #ifdef CONFIG_ATH9K_DEBUGFS
  36
  37 /**
  38  * struct ath_interrupt_stats - Contains statistics about interrupts
  39  * @total: Total no. of interrupts generated so far
  40  * @rxok: RX with no errors
  41  * @rxlp: RX with low priority RX
  42  * @rxhp: RX with high priority, uapsd only
  43  * @rxeol: RX with no more RXDESC available
  44  * @rxorn: RX FIFO overrun
  45  * @txok: TX completed at the requested rate
  46  * @txurn: TX FIFO underrun
  47  * @mib: MIB regs reaching its threshold
  48  * @rxphyerr: RX with phy errors
  49  * @rx_keycache_miss: RX with key cache misses
  50  * @swba: Software Beacon Alert
  51  * @bmiss: Beacon Miss
  52  * @bnr: Beacon Not Ready
  53  * @cst: Carrier Sense TImeout
  54  * @gtt: Global TX Timeout
  55  * @tim: RX beacon TIM occurrence
  56  * @cabend: RX End of CAB traffic
  57  * @dtimsync: DTIM sync lossage
  58  * @dtim: RX Beacon with DTIM
  59  * @bb_watchdog: Baseband watchdog
  60  * @tsfoor: TSF out of range, indicates that the corrected TSF received
  61  * from a beacon differs from the PCU's internal TSF by more than a
  62  * (programmable) threshold
  63  */
  64 struct ath_interrupt_stats {
  65         u32 total;
  66         u32 rxok;
  67         u32 rxlp;
  68         u32 rxhp;
  69         u32 rxeol;
  70         u32 rxorn;
  71         u32 txok;
  72         u32 txeol;
  73         u32 txurn;
  74         u32 mib;
  75         u32 rxphyerr;
  76         u32 rx_keycache_miss;
  77         u32 swba;
  78         u32 bmiss;
  79         u32 bnr;
  80         u32 cst;
  81         u32 gtt;
  82         u32 tim;
  83         u32 cabend;
  84         u32 dtimsync;
  85         u32 dtim;
  86         u32 bb_watchdog;
  87         u32 tsfoor;
  88 };
  89
  90 /**
  91  * struct ath_tx_stats - Statistics about TX
  92  * @tx_pkts_all:  No. of total frames transmitted, including ones that
  93         may have had errors.
  94  * @tx_bytes_all:  No. of total bytes transmitted, including ones that
  95         may have had errors.
  96  * @queued: Total MPDUs (non-aggr) queued
  97  * @completed: Total MPDUs (non-aggr) completed
  98  * @a_aggr: Total no. of aggregates queued
  99  * @a_queued_hw: Total AMPDUs queued to hardware
 100  * @a_queued_sw: Total AMPDUs queued to software queues
 101  * @a_completed: Total AMPDUs completed
 102  * @a_retries: No. of AMPDUs retried (SW)
 103  * @a_xretries: No. of AMPDUs dropped due to xretries
 104  * @fifo_underrun: FIFO underrun occurrences
 105         Valid only for:
 106                 - non-aggregate condition.
 107                 - first packet of aggregate.
 108  * @xtxop: No. of frames filtered because of TXOP limit
 109  * @timer_exp: Transmit timer expiry
 110  * @desc_cfg_err: Descriptor configuration errors
 111  * @data_urn: TX data underrun errors
 112  * @delim_urn: TX delimiter underrun errors
 113  * @puttxbuf: Number of times hardware was given txbuf to write.
 114  * @txstart:  Number of times hardware was told to start tx.
 115  * @txprocdesc:  Number of times tx descriptor was processed
 116  * @txfailed:  Out-of-memory or other errors in xmit path.
 117  */
 118 struct ath_tx_stats {
 119         u32 tx_pkts_all;
 120         u32 tx_bytes_all;
 121         u32 queued;
 122         u32 completed;
 123         u32 xretries;
 124         u32 a_aggr;
 125         u32 a_queued_hw;
 126         u32 a_queued_sw;
 127         u32 a_completed;
 128         u32 a_retries;
 129         u32 a_xretries;
 130         u32 fifo_underrun;
 131         u32 xtxop;
 132         u32 timer_exp;
 133         u32 desc_cfg_err;
 134         u32 data_underrun;
 135         u32 delim_underrun;
 136         u32 puttxbuf;
 137         u32 txstart;
 138         u32 txprocdesc;
 139         u32 txfailed;
 140 };
 141
 142 #define RX_STAT_INC(c) (sc->debug.stats.rxstats.c++)
 143
 144 /**
 145  * struct ath_rx_stats - RX Statistics
 146  * @rx_pkts_all:  No. of total frames received, including ones that
 147         may have had errors.
 148  * @rx_bytes_all:  No. of total bytes received, including ones that
 149         may have had errors.
 150  * @crc_err: No. of frames with incorrect CRC value
 151  * @decrypt_crc_err: No. of frames whose CRC check failed after
 152         decryption process completed
 153  * @phy_err: No. of frames whose reception failed because the PHY
 154         encountered an error
 155  * @mic_err: No. of frames with incorrect TKIP MIC verification failure
 156  * @pre_delim_crc_err: Pre-Frame delimiter CRC error detections
 157  * @post_delim_crc_err: Post-Frame delimiter CRC error detections
 158  * @decrypt_busy_err: Decryption interruptions counter
 159  * @phy_err_stats: Individual PHY error statistics
 160  * @rx_len_err:  No. of frames discarded due to bad length.
 161  * @rx_oom_err:  No. of frames dropped due to OOM issues.
 162  * @rx_rate_err:  No. of frames dropped due to rate errors.
 163  * @rx_too_many_frags_err:  Frames dropped due to too-many-frags received.
 164  * @rx_drop_rxflush: No. of frames dropped due to RX-FLUSH.
 165  * @rx_beacons:  No. of beacons received.
 166  * @rx_frags:  No. of rx-fragements received.
 167  */
 168 struct ath_rx_stats {
 169         u32 rx_pkts_all;
 170         u32 rx_bytes_all;
 171         u32 crc_err;
 172         u32 decrypt_crc_err;
 173         u32 phy_err;
 174         u32 mic_err;
 175         u32 pre_delim_crc_err;
 176         u32 post_delim_crc_err;
 177         u32 decrypt_busy_err;
 178         u32 phy_err_stats[ATH9K_PHYERR_MAX];
 179         u32 rx_len_err;
 180         u32 rx_oom_err;
 181         u32 rx_rate_err;
 182         u32 rx_too_many_frags_err;
 183         u32 rx_drop_rxflush;
 184         u32 rx_beacons;
 185         u32 rx_frags;
 186 };
 187
 188 enum ath_reset_type {
 189         RESET_TYPE_BB_HANG,
 190         RESET_TYPE_BB_WATCHDOG,
 191         RESET_TYPE_FATAL_INT,
 192         RESET_TYPE_TX_ERROR,
 193         RESET_TYPE_TX_HANG,
 194         RESET_TYPE_PLL_HANG,
 195         RESET_TYPE_MAC_HANG,
 196         __RESET_TYPE_MAX
 197 };
 198
 199 struct ath_stats {
 200         struct ath_interrupt_stats istats;
 201         struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
 202         struct ath_rx_stats rxstats;
 203         struct ath_dfs_stats dfs_stats;
 204         u32 reset[__RESET_TYPE_MAX];
 205 };
 206
 207 #define ATH_DBG_MAX_SAMPLES     10
 208 struct ath_dbg_bb_mac_samp {
 209         u32 dma_dbg_reg_vals[ATH9K_NUM_DMA_DEBUG_REGS];
 210         u32 pcu_obs, pcu_cr, noise;
 211         struct {
 212                 u64 jiffies;
 213                 int8_t rssi_ctl0;
 214                 int8_t rssi_ctl1;
 215                 int8_t rssi_ctl2;
 216                 int8_t rssi_ext0;
 217                 int8_t rssi_ext1;
 218                 int8_t rssi_ext2;
 219                 int8_t rssi;
 220                 bool isok;
 221                 u8 rts_fail_cnt;
 222                 u8 data_fail_cnt;
 223                 u8 rateindex;
 224                 u8 qid;
 225                 u8 tid;
 226                 u32 ba_low;
 227                 u32 ba_high;
 228         } ts[ATH_DBG_MAX_SAMPLES];
 229         struct {
 230                 u64 jiffies;
 231                 int8_t rssi_ctl0;
 232                 int8_t rssi_ctl1;
 233                 int8_t rssi_ctl2;
 234                 int8_t rssi_ext0;
 235                 int8_t rssi_ext1;
 236                 int8_t rssi_ext2;
 237                 int8_t rssi;
 238                 bool is_mybeacon;
 239                 u8 antenna;
 240                 u8 rate;
 241         } rs[ATH_DBG_MAX_SAMPLES];
 242         struct ath_cycle_counters cc;
 243         struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS];
 244 };
 245
 246 struct ath9k_debug {
 247         struct dentry *debugfs_phy;
 248         u32 regidx;
 249         struct ath_stats stats;
 250 #ifdef CONFIG_ATH9K_MAC_DEBUG
 251         spinlock_t samp_lock;
 252         struct ath_dbg_bb_mac_samp bb_mac_samp[ATH_DBG_MAX_SAMPLES];
 253         u8 sampidx;
 254         u8 tsidx;
 255         u8 rsidx;
 256 #endif
 257 };
 258
 259 int ath9k_init_debug(struct ath_hw *ah);
 260
 261 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 262 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 263                        struct ath_tx_status *ts, struct ath_txq *txq,
 264                        unsigned int flags);
 265 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs);
 266
 267 #else
 268
 269 #define RX_STAT_INC(c) /* NOP */
 270
 271 static inline int ath9k_init_debug(struct ath_hw *ah)
 272 {
 273         return 0;
 274 }
 275
 276 static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
 277                                             enum ath9k_int status)
 278 {
 279 }
 280
 281 static inline void ath_debug_stat_tx(struct ath_softc *sc,
 282                                      struct ath_buf *bf,
 283                                      struct ath_tx_status *ts,
 284                                      struct ath_txq *txq,
 285                                      unsigned int flags)
 286 {
 287 }
 288
 289 static inline void ath_debug_stat_rx(struct ath_softc *sc,
 290                                      struct ath_rx_status *rs)
 291 {
 292 }
 293
 294 #endif /* CONFIG_ATH9K_DEBUGFS */
 295
 296 #ifdef CONFIG_ATH9K_MAC_DEBUG
 297
 298 void ath9k_debug_samp_bb_mac(struct ath_softc *sc);
 299
 300 #else
 301
 302 static inline void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
 303 {
 304 }
 305
 306 #endif
 307
 308
 309 #endif /* DEBUG_H */