diff options
Diffstat (limited to 'package/mac80211/patches/540-ath9k_rc_debugfs.patch')
| -rw-r--r-- | package/mac80211/patches/540-ath9k_rc_debugfs.patch | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/package/mac80211/patches/540-ath9k_rc_debugfs.patch b/package/mac80211/patches/540-ath9k_rc_debugfs.patch new file mode 100644 index 0000000000..4e413f88d1 --- /dev/null +++ b/package/mac80211/patches/540-ath9k_rc_debugfs.patch @@ -0,0 +1,363 @@ +--- a/drivers/net/wireless/ath/ath9k/debug.c ++++ b/drivers/net/wireless/ath/ath9k/debug.c +@@ -378,95 +378,6 @@ static const struct file_operations fops + .owner = THIS_MODULE + }; + +-void ath_debug_stat_rc(struct ath_softc *sc, int final_rate) +-{ +- struct ath_rc_stats *stats; +- +- stats = &sc->debug.stats.rcstats[final_rate]; +- stats->success++; +-} +- +-void ath_debug_stat_retries(struct ath_softc *sc, int rix, +- int xretries, int retries, u8 per) +-{ +- struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix]; +- +- stats->xretries += xretries; +- stats->retries += retries; +- stats->per = per; +-} +- +-static ssize_t read_file_rcstat(struct file *file, char __user *user_buf, +- size_t count, loff_t *ppos) +-{ +- struct ath_softc *sc = file->private_data; +- char *buf; +- unsigned int len = 0, max; +- int i = 0; +- ssize_t retval; +- +- if (sc->cur_rate_table == NULL) +- return 0; +- +- max = 80 + sc->cur_rate_table->rate_cnt * 1024 + 1; +- buf = kmalloc(max, GFP_KERNEL); +- if (buf == NULL) +- return -ENOMEM; +- +- len += sprintf(buf, "%6s %6s %6s " +- "%10s %10s %10s %10s\n", +- "HT", "MCS", "Rate", +- "Success", "Retries", "XRetries", "PER"); +- +- for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) { +- u32 ratekbps = sc->cur_rate_table->info[i].ratekbps; +- struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i]; +- char mcs[5]; +- char htmode[5]; +- int used_mcs = 0, used_htmode = 0; +- +- if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) { +- used_mcs = snprintf(mcs, 5, "%d", +- sc->cur_rate_table->info[i].ratecode); +- +- if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy)) +- used_htmode = snprintf(htmode, 5, "HT40"); +- else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy)) +- used_htmode = snprintf(htmode, 5, "HT20"); +- else +- used_htmode = snprintf(htmode, 5, "????"); +- } +- +- mcs[used_mcs] = '\0'; +- htmode[used_htmode] = '\0'; +- +- len += snprintf(buf + len, max - len, +- "%6s %6s %3u.%d: " +- "%10u %10u %10u %10u\n", +- htmode, +- mcs, +- ratekbps / 1000, +- (ratekbps % 1000) / 100, +- stats->success, +- stats->retries, +- stats->xretries, +- stats->per); +- } +- +- if (len > max) +- len = max; +- +- retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); +- kfree(buf); +- return retval; +-} +- +-static const struct file_operations fops_rcstat = { +- .read = read_file_rcstat, +- .open = ath9k_debugfs_open, +- .owner = THIS_MODULE +-}; +- + static const char * ath_wiphy_state_str(enum ath_wiphy_state state) + { + switch (state) { +@@ -1024,10 +935,6 @@ int ath9k_init_debug(struct ath_hw *ah) + sc, &fops_interrupt)) + goto err; + +- if (!debugfs_create_file("rcstat", S_IRUSR, sc->debug.debugfs_phy, +- sc, &fops_rcstat)) +- goto err; +- + if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR, + sc->debug.debugfs_phy, sc, &fops_wiphy)) + goto err; +--- a/drivers/net/wireless/ath/ath9k/debug.h ++++ b/drivers/net/wireless/ath/ath9k/debug.h +@@ -80,13 +80,6 @@ struct ath_interrupt_stats { + u32 bb_watchdog; + }; + +-struct ath_rc_stats { +- u32 success; +- u32 retries; +- u32 xretries; +- u8 per; +-}; +- + /** + * struct ath_tx_stats - Statistics about TX + * @tx_pkts_all: No. of total frames transmitted, including ones that +@@ -160,7 +153,6 @@ struct ath_rx_stats { + + 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 ath_rx_stats rxstats; + }; +@@ -177,12 +169,9 @@ 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, struct ath_tx_status *ts); + void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs); +-void ath_debug_stat_retries(struct ath_softc *sc, int rix, +- int xretries, int retries, u8 per); + + #else + +@@ -209,11 +198,6 @@ static inline void ath_debug_stat_interr + { + } + +-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, +@@ -226,11 +210,6 @@ static inline void ath_debug_stat_rx(str + { + } + +-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 */ +--- a/drivers/net/wireless/ath/ath9k/rc.c ++++ b/drivers/net/wireless/ath/ath9k/rc.c +@@ -1026,6 +1026,16 @@ static bool ath_rc_update_per(struct ath + return state_change; + } + ++static void ath_debug_stat_retries(struct ath_rate_priv *rc, int rix, ++ int xretries, int retries, u8 per) ++{ ++ struct ath_rc_stats *stats = &rc->rcstats[rix]; ++ ++ stats->xretries += xretries; ++ stats->retries += retries; ++ stats->per = per; ++} ++ + /* Update PER, RSSI and whatever else that the code thinks it is doing. + If you can make sense of all this, you really need to go out more. */ + +@@ -1098,7 +1108,7 @@ static void ath_rc_update_ht(struct ath_ + ath_rc_priv->per_down_time = now_msec; + } + +- ath_debug_stat_retries(sc, tx_rate, xretries, retries, ++ ath_debug_stat_retries(ath_rc_priv, tx_rate, xretries, retries, + ath_rc_priv->per[tx_rate]); + + } +@@ -1294,6 +1304,7 @@ static void ath_rc_init(struct ath_softc + ath_rc_sort_validrates(rate_table, ath_rc_priv); + ath_rc_priv->rate_max_phy = ath_rc_priv->valid_rate_index[k-4]; + sc->cur_rate_table = rate_table; ++ ath_rc_priv->rate_table = rate_table; + + ath_print(common, ATH_DBG_CONFIG, + "RC Initialized with capabilities: 0x%x\n", +@@ -1340,6 +1351,15 @@ static bool ath_tx_aggr_check(struct ath + /* mac80211 Rate Control callbacks */ + /***********************************/ + ++static void ath_debug_stat_rc(struct ath_rate_priv *rc, int final_rate) ++{ ++ struct ath_rc_stats *stats; ++ ++ stats = &rc->rcstats[final_rate]; ++ stats->success++; ++} ++ ++ + static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, + struct ieee80211_sta *sta, void *priv_sta, + struct sk_buff *skb) +@@ -1419,7 +1439,7 @@ static void ath_tx_status(void *priv, st + } + } + +- ath_debug_stat_rc(sc, ath_rc_get_rateindex(sc->cur_rate_table, ++ ath_debug_stat_rc(ath_rc_priv, ath_rc_get_rateindex(sc->cur_rate_table, + &tx_info->status.rates[final_ts_idx])); + } + +@@ -1521,6 +1541,94 @@ static void ath_rate_update(void *priv, + } + } + ++#ifdef CONFIG_ATH9K_DEBUGFS ++ ++static int ath9k_debugfs_open(struct inode *inode, struct file *file) ++{ ++ file->private_data = inode->i_private; ++ return 0; ++} ++ ++static ssize_t read_file_rcstat(struct file *file, char __user *user_buf, ++ size_t count, loff_t *ppos) ++{ ++ struct ath_rate_priv *rc = file->private_data; ++ char *buf; ++ unsigned int len = 0, max; ++ int i = 0; ++ ssize_t retval; ++ ++ if (rc->rate_table == NULL) ++ return 0; ++ ++ max = 80 + rc->rate_table->rate_cnt * 1024 + 1; ++ buf = kmalloc(max, GFP_KERNEL); ++ if (buf == NULL) ++ return -ENOMEM; ++ ++ len += sprintf(buf, "%6s %6s %6s " ++ "%10s %10s %10s %10s\n", ++ "HT", "MCS", "Rate", ++ "Success", "Retries", "XRetries", "PER"); ++ ++ for (i = 0; i < rc->rate_table->rate_cnt; i++) { ++ u32 ratekbps = rc->rate_table->info[i].ratekbps; ++ struct ath_rc_stats *stats = &rc->rcstats[i]; ++ char mcs[5]; ++ char htmode[5]; ++ int used_mcs = 0, used_htmode = 0; ++ ++ if (WLAN_RC_PHY_HT(rc->rate_table->info[i].phy)) { ++ used_mcs = snprintf(mcs, 5, "%d", ++ rc->rate_table->info[i].ratecode); ++ ++ if (WLAN_RC_PHY_40(rc->rate_table->info[i].phy)) ++ used_htmode = snprintf(htmode, 5, "HT40"); ++ else if (WLAN_RC_PHY_20(rc->rate_table->info[i].phy)) ++ used_htmode = snprintf(htmode, 5, "HT20"); ++ else ++ used_htmode = snprintf(htmode, 5, "????"); ++ } ++ ++ mcs[used_mcs] = '\0'; ++ htmode[used_htmode] = '\0'; ++ ++ len += snprintf(buf + len, max - len, ++ "%6s %6s %3u.%d: " ++ "%10u %10u %10u %10u\n", ++ htmode, ++ mcs, ++ ratekbps / 1000, ++ (ratekbps % 1000) / 100, ++ stats->success, ++ stats->retries, ++ stats->xretries, ++ stats->per); ++ } ++ ++ if (len > max) ++ len = max; ++ ++ retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); ++ kfree(buf); ++ return retval; ++} ++ ++static const struct file_operations fops_rcstat = { ++ .read = read_file_rcstat, ++ .open = ath9k_debugfs_open, ++ .owner = THIS_MODULE ++}; ++ ++static void ath_rate_add_sta_debugfs(void *priv, void *priv_sta, ++ struct dentry *dir) ++{ ++ struct ath_rate_priv *rc = priv_sta; ++ debugfs_create_file("rc_stats", S_IRUGO, dir, rc, &fops_rcstat); ++} ++ ++#endif /* CONFIG_ATH9K_DEBUGFS */ ++ + static void *ath_rate_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) + { + struct ath_wiphy *aphy = hw->priv; +@@ -1567,6 +1675,9 @@ static struct rate_control_ops ath_rate_ + .free = ath_rate_free, + .alloc_sta = ath_rate_alloc_sta, + .free_sta = ath_rate_free_sta, ++#ifdef CONFIG_ATH9K_DEBUGFS ++ .add_sta_debugfs = ath_rate_add_sta_debugfs, ++#endif + }; + + int ath_rate_control_register(void) +--- a/drivers/net/wireless/ath/ath9k/rc.h ++++ b/drivers/net/wireless/ath/ath9k/rc.h +@@ -176,6 +176,13 @@ struct ath_rateset { + u8 rs_rates[ATH_RATE_MAX]; + }; + ++struct ath_rc_stats { ++ u32 success; ++ u32 retries; ++ u32 xretries; ++ u8 per; ++}; ++ + /** + * struct ath_rate_priv - Rate Control priv data + * @state: RC state +@@ -212,6 +219,10 @@ struct ath_rate_priv { + struct ath_rateset neg_rates; + struct ath_rateset neg_ht_rates; + struct ath_rate_softc *asc; ++ const struct ath_rate_table *rate_table; ++ ++ struct dentry *debugfs_rcstats; ++ struct ath_rc_stats rcstats[RATE_TABLE_SIZE]; + }; + + #define ATH_TX_INFO_FRAME_TYPE_INTERNAL (1 << 0) |