From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.candelatech.com ([208.74.158.172]:49550 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755029Ab1AGSBG (ORCPT ); Fri, 7 Jan 2011 13:01:06 -0500 From: greearb@candelatech.com To: linux-wireless@vger.kernel.org Cc: ath9k-devel@venema.h4ckr.net, Ben Greear Subject: [PATCH 1/2] ath9k: More xmit queue debugfs information. Date: Fri, 7 Jan 2011 10:00:58 -0800 Message-Id: <1294423259-8163-1-git-send-email-greearb@candelatech.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ben Greear To try to figure out why xmit logic hangs. Signed-off-by: Ben Greear --- :100644 100644 650f00f... 9e009cc... M drivers/net/wireless/ath/ath9k/debug.c drivers/net/wireless/ath/ath9k/debug.c | 26 ++++++++++++++++++++++++++ 1 files changed, 26 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 650f00f..9e009cc 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -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; -- 1.7.2.3