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/*
* Copyright (c) 2008-2009 Atheros Communications Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef DEBUG_H
#define DEBUG_H
#include "hw.h"
#include "rc.h"
struct ath_txq;
struct ath_buf;
#ifdef CONFIG_ATH9K_DEBUGFS
#define TX_STAT_INC(q, c) sc->debug.stats.txstats[q].c++
#else
#define TX_STAT_INC(q, c) do { } while (0)
#endif
#ifdef CONFIG_ATH9K_DEBUGFS
/**
* struct ath_interrupt_stats - Contains statistics about interrupts
* @total: Total no. of interrupts generated so far
* @rxok: RX with no errors
* @rxeol: RX with no more RXDESC available
* @rxorn: RX FIFO overrun
* @txok: TX completed at the requested rate
* @txurn: TX FIFO underrun
* @mib: MIB regs reaching its threshold
* @rxphyerr: RX with phy errors
* @rx_keycache_miss: RX with key cache misses
* @swba: Software Beacon Alert
* @bmiss: Beacon Miss
* @bnr: Beacon Not Ready
* @cst: Carrier Sense TImeout
* @gtt: Global TX Timeout
* @tim: RX beacon TIM occurrence
* @cabend: RX End of CAB traffic
* @dtimsync: DTIM sync lossage
* @dtim: RX Beacon with DTIM
*/
struct ath_interrupt_stats {
u32 total;
u32 rxok;
u32 rxeol;
u32 rxorn;
u32 txok;
u32 txeol;
u32 txurn;
u32 mib;
u32 rxphyerr;
u32 rx_keycache_miss;
u32 swba;
u32 bmiss;
u32 bnr;
u32 cst;
u32 gtt;
u32 tim;
u32 cabend;
u32 dtimsync;
u32 dtim;
};
struct ath_rc_stats {
u32 success;
u32 retries;
u32 xretries;
u8 per;
};
/**
* struct ath_tx_stats - Statistics about TX
* @queued: Total MPDUs (non-aggr) queued
* @completed: Total MPDUs (non-aggr) completed
* @a_aggr: Total no. of aggregates queued
* @a_queued: Total AMPDUs queued
* @a_completed: Total AMPDUs completed
* @a_retries: No. of AMPDUs retried (SW)
* @a_xretries: No. of AMPDUs dropped due to xretries
* @fifo_underrun: FIFO underrun occurrences
Valid only for:
- non-aggregate condition.
- first packet of aggregate.
* @xtxop: No. of frames filtered because of TXOP limit
* @timer_exp: Transmit timer expiry
* @desc_cfg_err: Descriptor configuration errors
* @data_urn: TX data underrun errors
* @delim_urn: TX delimiter underrun errors
*/
struct ath_tx_stats {
u32 queued;
u32 completed;
u32 a_aggr;
u32 a_queued;
u32 a_completed;
u32 a_retries;
u32 a_xretries;
u32 fifo_underrun;
u32 xtxop;
u32 timer_exp;
u32 desc_cfg_err;
u32 data_underrun;
u32 delim_underrun;
};
struct ath_stats {
struct ath_interrupt_stats istats;
struct ath_rc_stats rcstats[RATE_TABLE_SIZE];
struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
};
struct ath9k_debug {
struct dentry *debugfs_phy;
struct dentry *debugfs_debug;
struct dentry *debugfs_dma;
struct dentry *debugfs_interrupt;
struct dentry *debugfs_rcstat;
struct dentry *debugfs_wiphy;
struct dentry *debugfs_xmit;
struct ath_stats stats;
};
int ath9k_init_debug(struct ath_hw *ah);
void ath9k_exit_debug(struct ath_hw *ah);
int ath9k_debug_create_root(void);
void ath9k_debug_remove_root(void);
void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
void ath_debug_stat_rc(struct ath_softc *sc, int final_rate);
void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
struct ath_buf *bf);
void ath_debug_stat_retries(struct ath_softc *sc, int rix,
int xretries, int retries, u8 per);
#else
static inline int ath9k_init_debug(struct ath_hw *ah)
{
return 0;
}
static inline void ath9k_exit_debug(struct ath_hw *ah)
{
}
static inline int ath9k_debug_create_root(void)
{
return 0;
}
static inline void ath9k_debug_remove_root(void)
{
}
static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
enum ath9k_int status)
{
}
static inline void ath_debug_stat_rc(struct ath_softc *sc,
int final_rate)
{
}
static inline void ath_debug_stat_tx(struct ath_softc *sc,
struct ath_txq *txq,
struct ath_buf *bf)
{
}
static inline void ath_debug_stat_retries(struct ath_softc *sc, int rix,
int xretries, int retries, u8 per)
{
}
#endif /* CONFIG_ATH9K_DEBUGFS */
#endif /* DEBUG_H */
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