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Commit 71e025a5 authored by Ben Greear's avatar Ben Greear Committed by John W. Linville
Browse files

ath9k: More xmit queue debugfs information. 



To try to figure out why xmit logic hangs.

Signed-off-by: default avatarBen Greear <greearb@candelatech.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 7f010c93

drivers/net/wireless/ath/ath9k/debug.c

+26 −0
Original line number Original line Diff line number Diff line
@@ -679,6 +679,32 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, 
		PRQLE(tmp, txq_fifo[i]);

		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:

done:

	if (len > size)

	if (len > size)

		len = size;

		len = size;