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ath5k: Count how many times a queue got stuck

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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>
This commit is contained in:
Bruno Randolf 2010-09-17 11:37:02 +09:00 committed by John W. Linville
parent 4edd761f40
commit 923e5b3d3d
3 changed files with 5 additions and 0 deletions
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2
drivers/net/wireless/ath/ath5k/base.c
View File

@ -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 {

1
drivers/net/wireless/ath/ath5k/base.h
View File

@ -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

2
drivers/net/wireless/ath/ath5k/debug.c
View File

@ -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))