From: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ath9k.h | 5 ++
drivers/net/wireless/ath/ath9k/debug.c | 90 ++++++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath9k/debug.h | 9 +++-
drivers/net/wireless/ath/ath9k/main.c | 10 +++-
4 files changed, 111 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 60bf784..86e26a1 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -259,6 +259,7 @@ struct ath_atx_tid {
};
struct ath_node {
+ struct ath_softc *sc;
struct ieee80211_sta *sta; /* station struct we're part of */
struct ieee80211_vif *vif; /* interface with which we're associated */
struct ath_atx_tid tid[IEEE80211_NUM_TIDS];
@@ -269,6 +270,10 @@ struct ath_node {
u8 mpdudensity;
bool sleeping;
+
+#if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
+ struct dentry *node_stat;
+#endif
};
#define AGGR_CLEANUP BIT(1)
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index cb5e457..13ff9ed 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -1509,6 +1509,96 @@ static const struct file_operations fops_btcoex = {
};
#endif
+static ssize_t read_file_node_stat(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath_node *an = file->private_data;
+ struct ath_softc *sc = an->sc;
+ struct ath_atx_tid *tid;
+ struct ath_atx_ac *ac;
+ struct ath_txq *txq;
+ u32 len = 0, size = 4096;
+ char *buf;
+ size_t retval;
+ int tidno, acno;
+
+ buf = kzalloc(size, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ if (!an->sta->ht_cap.ht_supported) {
+ len = snprintf(buf, size, "%s\n",
+ "HT not supported");
+ goto exit;
+ }
+
+ len = snprintf(buf, size, "Max-AMPDU: %d\n",
+ an->maxampdu);
+ len += snprintf(buf + len, size - len, "MPDU Density: %d\n\n",
+ an->mpdudensity);
+
+ len += snprintf(buf + len, size - len,
+ "%2s%7s\n", "AC", "SCHED");
+
+ for (acno = 0, ac = &an->ac[acno];
+ acno < IEEE80211_NUM_ACS; acno++, ac++) {
+ txq = ac->txq;
+ ath_txq_lock(sc, txq);
+ len += snprintf(buf + len, size - len,
+ "%2d%7d\n",
+ acno, ac->sched);
+ ath_txq_unlock(sc, txq);
+ }
+
+ len += snprintf(buf + len, size - len,
+ "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
+ "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
+ "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
+
+ for (tidno = 0, tid = &an->tid[tidno];
+ tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
+ txq = tid->ac->txq;
+ ath_txq_lock(sc, txq);
+ len += snprintf(buf + len, size - len,
+ "%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
+ tid->tidno, tid->seq_start, tid->seq_next,
+ tid->baw_size, tid->baw_head, tid->baw_tail,
+ tid->bar_index, tid->sched, tid->paused);
+ ath_txq_unlock(sc, txq);
+ }
+exit:
+ retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+ kfree(buf);
+
+ return retval;
+}
+
+static const struct file_operations fops_node_stat = {
+ .read = read_file_node_stat,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
+void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct dentry *dir)
+{
+ struct ath_node *an = (struct ath_node *)sta->drv_priv;
+ an->node_stat = debugfs_create_file("node_stat", S_IRUGO,
+ dir, an, &fops_node_stat);
+}
+
+void ath9k_sta_remove_debugfs(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct dentry *dir)
+{
+ struct ath_node *an = (struct ath_node *)sta->drv_priv;
+ debugfs_remove(an->node_stat);
+}
+
/* Ethtool support for get-stats */
#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index bfc21b3..72d4893 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -315,7 +315,14 @@ void ath9k_get_et_stats(struct ieee80211_hw *hw,
void ath9k_get_et_strings(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
u32 sset, u8 *data);
-
+void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct dentry *dir);
+void ath9k_sta_remove_debugfs(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct dentry *dir);
#else
#define RX_STAT_INC(c) /* NOP */
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index ffae384..be30a9a 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -331,6 +331,7 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
u8 density;
an = (struct ath_node *)sta->drv_priv;
+ an->sc = sc;
an->sta = sta;
an->vif = vif;
@@ -2275,7 +2276,12 @@ struct ieee80211_ops ath9k_ops = {
#ifdef CONFIG_ATH9K_DEBUGFS
.get_et_sset_count = ath9k_get_et_sset_count,
- .get_et_stats = ath9k_get_et_stats,
- .get_et_strings = ath9k_get_et_strings,
+ .get_et_stats = ath9k_get_et_stats,
+ .get_et_strings = ath9k_get_et_strings,
+#endif
+
+#if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
+ .sta_add_debugfs = ath9k_sta_add_debugfs,
+ .sta_remove_debugfs = ath9k_sta_remove_debugfs,
#endif
};
--
1.8.0.1
--
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