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 "dfs_debug.h"
22 
23 struct ath_txq;
24 struct ath_buf;
25 struct fft_sample_tlv;
26 
27 #ifdef CONFIG_ATH9K_DEBUGFS
28 #define TX_STAT_INC(sc, q, c)	 do { (sc)->debug.stats.txstats[q].c++; } while (0)
29 #define RX_STAT_INC(sc, c)	 do { (sc)->debug.stats.rxstats.c++; } while (0)
30 #define RESET_STAT_INC(sc, type) do { (sc)->debug.stats.reset[type]++; } while (0)
31 #define ANT_STAT_INC(sc, i, c)	 do { (sc)->debug.stats.ant_stats[i].c++; } while (0)
32 #define ANT_LNA_INC(sc, i, c)	 do { (sc)->debug.stats.ant_stats[i].lna_recv_cnt[c]++; } while (0)
33 #else
34 #define TX_STAT_INC(sc, q, c)	 do { (void)(sc); } while (0)
35 #define RX_STAT_INC(sc, c)	 do { (void)(sc); } while (0)
36 #define RESET_STAT_INC(sc, type) do { (void)(sc); } while (0)
37 #define ANT_STAT_INC(sc, i, c)	 do { (void)(sc); } while (0)
38 #define ANT_LNA_INC(sc, i, c)	 do { (void)(sc); } while (0)
39 #endif
40 
41 enum ath_reset_type {
42 	RESET_TYPE_BB_HANG,
43 	RESET_TYPE_BB_WATCHDOG,
44 	RESET_TYPE_FATAL_INT,
45 	RESET_TYPE_TX_ERROR,
46 	RESET_TYPE_TX_GTT,
47 	RESET_TYPE_TX_HANG,
48 	RESET_TYPE_PLL_HANG,
49 	RESET_TYPE_MAC_HANG,
50 	RESET_TYPE_BEACON_STUCK,
51 	RESET_TYPE_MCI,
52 	RESET_TYPE_CALIBRATION,
53 	RESET_TX_DMA_ERROR,
54 	RESET_RX_DMA_ERROR,
55 	__RESET_TYPE_MAX
56 };
57 
58 #ifdef CONFIG_ATH9K_DEBUGFS
59 
60 /**
61  * struct ath_interrupt_stats - Contains statistics about interrupts
62  * @total: Total no. of interrupts generated so far
63  * @rxok: RX with no errors
64  * @rxlp: RX with low priority RX
65  * @rxhp: RX with high priority, uapsd only
66  * @rxeol: RX with no more RXDESC available
67  * @rxorn: RX FIFO overrun
68  * @txok: TX completed at the requested rate
69  * @txurn: TX FIFO underrun
70  * @mib: MIB regs reaching its threshold
71  * @rxphyerr: RX with phy errors
72  * @rx_keycache_miss: RX with key cache misses
73  * @swba: Software Beacon Alert
74  * @bmiss: Beacon Miss
75  * @bnr: Beacon Not Ready
76  * @cst: Carrier Sense TImeout
77  * @gtt: Global TX Timeout
78  * @tim: RX beacon TIM occurrence
79  * @cabend: RX End of CAB traffic
80  * @dtimsync: DTIM sync lossage
81  * @dtim: RX Beacon with DTIM
82  * @bb_watchdog: Baseband watchdog
83  * @tsfoor: TSF out of range, indicates that the corrected TSF received
84  * from a beacon differs from the PCU's internal TSF by more than a
85  * (programmable) threshold
86  * @local_timeout: Internal bus timeout.
87  * @mci: MCI interrupt, specific to MCI based BTCOEX chipsets
88  * @gen_timer: Generic hardware timer interrupt
89  */
90 struct ath_interrupt_stats {
91 	u32 total;
92 	u32 rxok;
93 	u32 rxlp;
94 	u32 rxhp;
95 	u32 rxeol;
96 	u32 rxorn;
97 	u32 txok;
98 	u32 txeol;
99 	u32 txurn;
100 	u32 mib;
101 	u32 rxphyerr;
102 	u32 rx_keycache_miss;
103 	u32 swba;
104 	u32 bmiss;
105 	u32 bnr;
106 	u32 cst;
107 	u32 gtt;
108 	u32 tim;
109 	u32 cabend;
110 	u32 dtimsync;
111 	u32 dtim;
112 	u32 bb_watchdog;
113 	u32 tsfoor;
114 	u32 mci;
115 	u32 gen_timer;
116 
117 	/* Sync-cause stats */
118 	u32 sync_cause_all;
119 	u32 sync_rtc_irq;
120 	u32 sync_mac_irq;
121 	u32 eeprom_illegal_access;
122 	u32 apb_timeout;
123 	u32 pci_mode_conflict;
124 	u32 host1_fatal;
125 	u32 host1_perr;
126 	u32 trcv_fifo_perr;
127 	u32 radm_cpl_ep;
128 	u32 radm_cpl_dllp_abort;
129 	u32 radm_cpl_tlp_abort;
130 	u32 radm_cpl_ecrc_err;
131 	u32 radm_cpl_timeout;
132 	u32 local_timeout;
133 	u32 pm_access;
134 	u32 mac_awake;
135 	u32 mac_asleep;
136 	u32 mac_sleep_access;
137 };
138 
139 
140 /**
141  * struct ath_tx_stats - Statistics about TX
142  * @tx_pkts_all:  No. of total frames transmitted, including ones that
143 	may have had errors.
144  * @tx_bytes_all:  No. of total bytes transmitted, including ones that
145 	may have had errors.
146  * @queued: Total MPDUs (non-aggr) queued
147  * @completed: Total MPDUs (non-aggr) completed
148  * @a_aggr: Total no. of aggregates queued
149  * @a_queued_hw: Total AMPDUs queued to hardware
150  * @a_completed: Total AMPDUs completed
151  * @a_retries: No. of AMPDUs retried (SW)
152  * @a_xretries: No. of AMPDUs dropped due to xretries
153  * @txerr_filtered: No. of frames with TXERR_FILT flag set.
154  * @fifo_underrun: FIFO underrun occurrences
155 	Valid only for:
156 		- non-aggregate condition.
157 		- first packet of aggregate.
158  * @xtxop: No. of frames filtered because of TXOP limit
159  * @timer_exp: Transmit timer expiry
160  * @desc_cfg_err: Descriptor configuration errors
161  * @data_urn: TX data underrun errors
162  * @delim_urn: TX delimiter underrun errors
163  * @puttxbuf: Number of times hardware was given txbuf to write.
164  * @txstart:  Number of times hardware was told to start tx.
165  * @txprocdesc:  Number of times tx descriptor was processed
166  * @txfailed:  Out-of-memory or other errors in xmit path.
167  */
168 struct ath_tx_stats {
169 	u32 tx_pkts_all;
170 	u32 tx_bytes_all;
171 	u32 queued;
172 	u32 completed;
173 	u32 xretries;
174 	u32 a_aggr;
175 	u32 a_queued_hw;
176 	u32 a_completed;
177 	u32 a_retries;
178 	u32 a_xretries;
179 	u32 txerr_filtered;
180 	u32 fifo_underrun;
181 	u32 xtxop;
182 	u32 timer_exp;
183 	u32 desc_cfg_err;
184 	u32 data_underrun;
185 	u32 delim_underrun;
186 	u32 puttxbuf;
187 	u32 txstart;
188 	u32 txprocdesc;
189 	u32 txfailed;
190 };
191 
192 /*
193  * Various utility macros to print TX/Queue counters.
194  */
195 #define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum
196 #define TXSTATS sc->debug.stats.txstats
197 #define PR(str, elem)							\
198 	do {								\
199 		seq_printf(file, "%s%13u%11u%10u%10u\n", str,		\
200 			   TXSTATS[PR_QNUM(IEEE80211_AC_BE)].elem,\
201 			   TXSTATS[PR_QNUM(IEEE80211_AC_BK)].elem,\
202 			   TXSTATS[PR_QNUM(IEEE80211_AC_VI)].elem,\
203 			   TXSTATS[PR_QNUM(IEEE80211_AC_VO)].elem); \
204 	} while(0)
205 
206 struct ath_rx_rate_stats {
207 	struct {
208 		u32 ht20_cnt;
209 		u32 ht40_cnt;
210 		u32 sgi_cnt;
211 		u32 lgi_cnt;
212 	} ht_stats[24];
213 
214 	struct {
215 		u32 ofdm_cnt;
216 	} ofdm_stats[8];
217 
218 	struct {
219 		u32 cck_lp_cnt;
220 		u32 cck_sp_cnt;
221 	} cck_stats[4];
222 };
223 
224 struct ath_airtime_stats {
225 	u32 rx_airtime;
226 	u32 tx_airtime;
227 };
228 
229 #define ANT_MAIN 0
230 #define ANT_ALT  1
231 
232 struct ath_antenna_stats {
233 	u32 recv_cnt;
234 	u32 rssi_avg;
235 	u32 lna_recv_cnt[4];
236 	u32 lna_attempt_cnt[4];
237 };
238 
239 struct ath_stats {
240 	struct ath_interrupt_stats istats;
241 	struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
242 	struct ath_rx_stats rxstats;
243 	struct ath_dfs_stats dfs_stats;
244 	struct ath_antenna_stats ant_stats[2];
245 	u32 reset[__RESET_TYPE_MAX];
246 };
247 
248 struct ath9k_debug {
249 	struct dentry *debugfs_phy;
250 	u32 regidx;
251 	struct ath_stats stats;
252 };
253 
254 int ath9k_init_debug(struct ath_hw *ah);
255 void ath9k_deinit_debug(struct ath_softc *sc);
256 
257 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
258 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
259 		       struct ath_tx_status *ts, struct ath_txq *txq,
260 		       unsigned int flags);
261 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs);
262 int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
263 			    struct ieee80211_vif *vif, int sset);
264 void ath9k_get_et_stats(struct ieee80211_hw *hw,
265 			struct ieee80211_vif *vif,
266 			struct ethtool_stats *stats, u64 *data);
267 void ath9k_get_et_strings(struct ieee80211_hw *hw,
268 			  struct ieee80211_vif *vif,
269 			  u32 sset, u8 *data);
270 void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
271 			   struct ieee80211_vif *vif,
272 			   struct ieee80211_sta *sta,
273 			   struct dentry *dir);
274 void ath9k_debug_stat_ant(struct ath_softc *sc,
275 			  struct ath_hw_antcomb_conf *div_ant_conf,
276 			  int main_rssi_avg, int alt_rssi_avg);
277 void ath9k_debug_sync_cause(struct ath_softc *sc, u32 sync_cause);
278 
279 #else
280 
281 static inline int ath9k_init_debug(struct ath_hw *ah)
282 {
283 	return 0;
284 }
285 
286 static inline void ath9k_deinit_debug(struct ath_softc *sc)
287 {
288 }
289 static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
290 					    enum ath9k_int status)
291 {
292 }
293 static inline void ath_debug_stat_tx(struct ath_softc *sc,
294 				     struct ath_buf *bf,
295 				     struct ath_tx_status *ts,
296 				     struct ath_txq *txq,
297 				     unsigned int flags)
298 {
299 }
300 static inline void ath_debug_stat_rx(struct ath_softc *sc,
301 				     struct ath_rx_status *rs)
302 {
303 }
304 static inline void ath9k_debug_stat_ant(struct ath_softc *sc,
305 					struct ath_hw_antcomb_conf *div_ant_conf,
306 					int main_rssi_avg, int alt_rssi_avg)
307 {
308 
309 }
310 
311 static inline void
312 ath9k_debug_sync_cause(struct ath_softc *sc, u32 sync_cause)
313 {
314 }
315 
316 #endif /* CONFIG_ATH9K_DEBUGFS */
317 
318 #ifdef CONFIG_ATH9K_STATION_STATISTICS
319 void ath_debug_rate_stats(struct ath_softc *sc,
320 			  struct ath_rx_status *rs,
321 			  struct sk_buff *skb);
322 void ath_debug_airtime(struct ath_softc *sc,
323 		       struct ath_node *an,
324 		       u32 rx, u32 tx);
325 #else
326 static inline void ath_debug_rate_stats(struct ath_softc *sc,
327 					struct ath_rx_status *rs,
328 					struct sk_buff *skb)
329 {
330 }
331 static inline void ath_debug_airtime(struct ath_softc *sc,
332 			      struct ath_node *an,
333 			      u32 rx, u32 tx)
334 {
335 }
336 #endif /* CONFIG_ATH9K_STATION_STATISTICS */
337 
338 #endif /* DEBUG_H */
339