From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail30t.wh2.ocn.ne.jp ([125.206.180.136]:35419 "HELO mail30t.wh2.ocn.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754700Ab0IQCgl (ORCPT ); Thu, 16 Sep 2010 22:36:41 -0400 Received: from vs3017.wh2.ocn.ne.jp (125.206.180.250) by mail30t.wh2.ocn.ne.jp (RS ver 1.0.95vs) with SMTP id 3-012166999 for ; Fri, 17 Sep 2010 11:36:39 +0900 (JST) Subject: [PATCH 08/11] ath5k: Count how many times a queue got stuck To: linville@tuxdriver.com From: Bruno Randolf Cc: ath5k-devel@lists.ath5k.org, linux-wireless@vger.kernel.org Date: Fri, 17 Sep 2010 11:37:02 +0900 Message-ID: <20100917023702.24997.19042.stgit@tt-desk> In-Reply-To: <20100917023543.24997.48466.stgit@tt-desk> References: <20100917023543.24997.48466.stgit@tt-desk> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-wireless-owner@vger.kernel.org List-ID: Add a counter to show how many times a queue got stuck in the debugfs queue file. Signed-off-by: Bruno Randolf --- drivers/net/wireless/ath/ath5k/base.c | 2 ++ drivers/net/wireless/ath/ath5k/base.h | 1 + drivers/net/wireless/ath/ath5k/debug.c | 2 ++ 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 d13df7a..c4f0786 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -896,6 +896,7 @@ 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]; } @@ -2197,6 +2198,7 @@ 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 d8e2674..7f9d0d3 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 b2c610b..6583a82 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))