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ath9k: More xmit queue debugfs information.

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To try to figure out why xmit logic hangs.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ben Greear 2011-01-09 23:11:50 -08:00 committed by John W. Linville
parent 7f010c93d7
commit 71e025a5a6
1 changed files with 26 additions and 0 deletions
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26
drivers/net/wireless/ath/ath9k/debug.c
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@ -679,6 +679,32 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
PRQLE(tmp, txq_fifo[i]);
}
/* Print out more detailed queue-info */
for (i = 0; i <= WME_AC_BK; i++) {
struct ath_txq *txq = &(sc->tx.txq[i]);
struct ath_atx_ac *ac;
struct ath_atx_tid *tid;
if (len >= size)
goto done;
spin_lock_bh(&txq->axq_lock);
if (!list_empty(&txq->axq_acq)) {
ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac,
list);
len += snprintf(buf + len, size - len,
"txq[%i] first-ac: %p sched: %i\n",
i, ac, ac->sched);
if (list_empty(&ac->tid_q) || (len >= size))
goto done_for;
tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
list);
len += snprintf(buf + len, size - len,
" first-tid: %p sched: %i paused: %i\n",
tid, tid->sched, tid->paused);
}
done_for:
spin_unlock_bh(&txq->axq_lock);
}
done:
if (len > size)
len = size;