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openwrtv3/package/mac80211/patches/540-ath9k_rc_debugfs.patch

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--- 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)
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