Return-path: Received: from nbd.name ([46.4.11.11]:49810 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751342Ab1AXU3b (ORCPT ); Mon, 24 Jan 2011 15:29:31 -0500 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com, lrodriguez@atheros.com, Ben Greear Subject: [PATCH] ath9k: fix tx queue index confusion in debugfs code Date: Mon, 24 Jan 2011 21:29:25 +0100 Message-Id: <1295900965-24893-1-git-send-email-nbd@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: Various places printing tx queue information used various different ways to get a tx queue index for printing statistics. Most of these ways were wrong. ATH_TXQ_AC_* cannot be used as an index for sc->tx.txq, because it is only used internally for queue assignment. One place used WME_AC_* as a queue index for sc->debug.stats.txstats, however this array uses the ath9k_hw queue number as well. Fix all of this by always using the ath9k_hw queue number as an index, and always looking it up by going through sc->tx.txq_map. Signed-off-by: Felix Fietkau Cc: Ben Greear --- drivers/net/wireless/ath/ath9k/debug.c | 37 ++++++++++++++++--------------- drivers/net/wireless/ath/ath9k/debug.h | 2 +- drivers/net/wireless/ath/ath9k/xmit.c | 2 +- 3 files changed, 21 insertions(+), 20 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index f517c0c..9cdc41b 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -450,14 +450,15 @@ static const struct file_operations fops_wiphy = { .llseek = default_llseek, }; +#define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum #define PR(str, elem) \ do { \ len += snprintf(buf + len, size - len, \ "%s%13u%11u%10u%10u\n", str, \ - sc->debug.stats.txstats[WME_AC_BE].elem, \ - sc->debug.stats.txstats[WME_AC_BK].elem, \ - sc->debug.stats.txstats[WME_AC_VI].elem, \ - sc->debug.stats.txstats[WME_AC_VO].elem); \ + sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \ + sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \ + sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \ + sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \ if (len >= size) \ goto done; \ } while(0) @@ -466,10 +467,10 @@ static const struct file_operations fops_wiphy = { do { \ len += snprintf(buf + len, size - len, \ "%s%13u%11u%10u%10u\n", str, \ - (unsigned int)(sc->tx.txq[ATH_TXQ_AC_BE].elem), \ - (unsigned int)(sc->tx.txq[ATH_TXQ_AC_BK].elem), \ - (unsigned int)(sc->tx.txq[ATH_TXQ_AC_VI].elem), \ - (unsigned int)(sc->tx.txq[ATH_TXQ_AC_VO].elem)); \ + (unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem), \ + (unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem), \ + (unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem), \ + (unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem)); \ if (len >= size) \ goto done; \ } while(0) @@ -478,10 +479,10 @@ do { \ do { \ len += snprintf(buf + len, size - len, \ "%s%13i%11i%10i%10i\n", str, \ - list_empty(&sc->tx.txq[ATH_TXQ_AC_BE].elem), \ - list_empty(&sc->tx.txq[ATH_TXQ_AC_BK].elem), \ - list_empty(&sc->tx.txq[ATH_TXQ_AC_VI].elem), \ - list_empty(&sc->tx.txq[ATH_TXQ_AC_VO].elem)); \ + list_empty(&sc->tx.txq_map[WME_AC_BE]->elem), \ + list_empty(&sc->tx.txq_map[WME_AC_BK]->elem), \ + list_empty(&sc->tx.txq_map[WME_AC_VI]->elem), \ + list_empty(&sc->tx.txq_map[WME_AC_VO]->elem)); \ if (len >= size) \ goto done; \ } while (0) @@ -528,10 +529,10 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, PR("hw-tx-proc-desc: ", txprocdesc); len += snprintf(buf + len, size - len, "%s%11p%11p%10p%10p\n", "txq-memory-address:", - &(sc->tx.txq[ATH_TXQ_AC_BE]), - &(sc->tx.txq[ATH_TXQ_AC_BK]), - &(sc->tx.txq[ATH_TXQ_AC_VI]), - &(sc->tx.txq[ATH_TXQ_AC_VO])); + &(sc->tx.txq_map[WME_AC_BE]), + &(sc->tx.txq_map[WME_AC_BK]), + &(sc->tx.txq_map[WME_AC_VI]), + &(sc->tx.txq_map[WME_AC_VO])); if (len >= size) goto done; @@ -751,9 +752,9 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf, } void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, - struct ath_tx_status *ts) + struct ath_tx_status *ts, struct ath_txq *txq) { - int qnum = skb_get_queue_mapping(bf->bf_mpdu); + int qnum = txq->axq_qnum; TX_STAT_INC(qnum, tx_pkts_all); sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len; diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index 980c9fa..1bdc6d4 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -175,7 +175,7 @@ int ath9k_init_debug(struct ath_hw *ah); void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status); void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, - struct ath_tx_status *ts); + struct ath_tx_status *ts, struct ath_txq *txq); void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs); #else diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 1afbd22..85c3d0a 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1913,7 +1913,7 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf, else complete(&sc->paprd_complete); } else { - ath_debug_stat_tx(sc, bf, ts); + ath_debug_stat_tx(sc, bf, ts, txq); ath_tx_complete(sc, skb, tx_flags, bf->bf_state.bfs_ftype, txq); } -- 1.7.3.2