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authorBruno Randolf <br1@einfach.org>2010-09-17 11:37:02 +0900
committerJohn W. Linville <linville@tuxdriver.com>2010-09-21 11:05:14 -0400
commit923e5b3d3d773b9956b943ac64f782d5a127bdea (patch)
tree04baaf5b5f2edb1b467f6e9debc075c2bb2b62cc /drivers
parent4edd761f4075b03be5932682a2f7b9368dc9e536 (diff)
ath5k: Count how many times a queue got stuck
Add a counter to show how many times a queue got stuck in the debugfs queue file. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/ath5k/base.c2
-rw-r--r--drivers/net/wireless/ath/ath5k/base.h1
-rw-r--r--drivers/net/wireless/ath/ath5k/debug.c2
3 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index afedfeba13d..cae9fe4676e 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -892,6 +892,7 @@ ath5k_txq_setup(struct ath5k_softc *sc,
txq->setup = true;
txq->txq_len = 0;
txq->txq_poll_mark = false;
+ txq->txq_stuck = 0;
}
return &sc->txqs[qnum];
}
@@ -2193,6 +2194,7 @@ ath5k_tx_complete_poll_work(struct work_struct *work)
"TX queue stuck %d\n",
txq->qnum);
needreset = true;
+ txq->txq_stuck++;
spin_unlock_bh(&txq->lock);
break;
} else {
diff --git a/drivers/net/wireless/ath/ath5k/base.h b/drivers/net/wireless/ath/ath5k/base.h
index d8e2674aec7..7f9d0d3018e 100644
--- a/drivers/net/wireless/ath/ath5k/base.h
+++ b/drivers/net/wireless/ath/ath5k/base.h
@@ -88,6 +88,7 @@ struct ath5k_txq {
bool setup;
int txq_len; /* number of queued buffers */
bool txq_poll_mark;
+ unsigned int txq_stuck; /* informational counter */
};
#define ATH5K_LED_MAX_NAME_LEN 31
diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
index b2c610ba8b7..6583a82a078 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -785,6 +785,8 @@ static ssize_t read_file_queue(struct file *file, char __user *user_buf,
len += snprintf(buf+len, sizeof(buf)-len,
" len: %d bufs: %d\n", txq->txq_len, n);
+ len += snprintf(buf+len, sizeof(buf)-len,
+ " stuck: %d\n", txq->txq_stuck);
}
if (len > sizeof(buf))