Return-path: Received: from nbd.name ([46.4.11.11]:34642 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752278Ab1AONaW (ORCPT ); Sat, 15 Jan 2011 08:30:22 -0500 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com, lrodriguez@atheros.com, Felix Fietkau Subject: [PATCH 1/2] ath9k: try more than one tid when scheduling a new aggregate Date: Sat, 15 Jan 2011 14:30:14 +0100 Message-Id: <1295098215-98910-1-git-send-email-nbd@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: Sometimes the first TID in the first AC's list is not available for forming a new aggregate (the BAW might not allow it), however other TIDs may have data available for sending. Prevent a slowdown of other TIDs by going through multiple entries until we've either hit the last one or enough AMPDUs are pending in the hardware queue. Signed-off-by: Felix Fietkau --- drivers/net/wireless/ath/ath9k/xmit.c | 9 ++++++--- 1 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index ab4f7b4..fffd13d 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1224,12 +1224,14 @@ void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq) void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq) { struct ath_atx_ac *ac; - struct ath_atx_tid *tid; + struct ath_atx_tid *tid, *last; - if (list_empty(&txq->axq_acq)) + if (list_empty(&txq->axq_acq) || + txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) return; ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, list); + last = list_entry(ac->tid_q.prev, struct ath_atx_tid, list); list_del(&ac->list); ac->sched = false; @@ -1253,7 +1255,8 @@ void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq) if (!list_empty(&tid->buf_q)) ath_tx_queue_tid(txq, tid); - break; + if (tid == last || txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) + break; } while (!list_empty(&ac->tid_q)); if (!list_empty(&ac->tid_q)) { -- 1.7.3.2