From 28d167086227969fd6586953ee4ac682a3c394ff Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 14 Nov 2010 15:20:10 +0100 Subject: [PATCH] ath9k: clean up code duplication around ath_tx_start Merge initial processing for the CAB queue and regular tx. Also move ath_tx_cabq() to beacon.c and make it static. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 - drivers/net/wireless/ath/ath9k/beacon.c | 19 +++++++ drivers/net/wireless/ath/ath9k/main.c | 25 --------- drivers/net/wireless/ath/ath9k/xmit.c | 67 ++++++++----------------- 4 files changed, 39 insertions(+), 73 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 3fecd03cfb23..711100793081 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -323,7 +323,6 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, struct ath_tx_control *txctl); void ath_tx_tasklet(struct ath_softc *sc); void ath_tx_edma_tasklet(struct ath_softc *sc); -void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb); int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, u16 *ssn); void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 2377376c8d4d..30724a4e8bb2 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -109,6 +109,25 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp, series, 4, 0); } +static void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + struct ath_tx_control txctl; + + memset(&txctl, 0, sizeof(struct ath_tx_control)); + txctl.txq = sc->beacon.cabq; + + ath_print(common, ATH_DBG_XMIT, + "transmitting CABQ packet, skb: %p\n", skb); + + if (ath_tx_start(hw, skb, &txctl) != 0) { + ath_print(common, ATH_DBG_XMIT, "CABQ TX failed\n"); + dev_kfree_skb_any(skb); + } +} + static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index cfec2ad664d8..6e93a53c5e32 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1187,12 +1187,10 @@ mutex_unlock: static int ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_tx_control txctl; - int padpos, padsize; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { @@ -1243,29 +1241,6 @@ static int ath9k_tx(struct ieee80211_hw *hw, } memset(&txctl, 0, sizeof(struct ath_tx_control)); - - /* - * As a temporary workaround, assign seq# here; this will likely need - * to be cleaned up to work better with Beacon transmission and virtual - * BSSes. - */ - if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { - if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) - sc->tx.seq_no += 0x10; - hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); - hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); - } - - /* Add the padding after the header if this is not already done */ - padpos = ath9k_cmn_padpos(hdr->frame_control); - padsize = padpos & 3; - if (padsize && skb->len>padpos) { - if (skb_headroom(skb) < padsize) - return -1; - skb_push(skb, padsize); - memmove(skb->data, skb->data + padsize, padpos); - } - txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)]; ath_print(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index c35033f1a5e0..f3f0d1c6ad0a 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1742,41 +1742,14 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf, int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, struct ath_tx_control *txctl) { + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; struct ath_txq *txq = txctl->txq; struct ath_buf *bf; - int q; - - bf = ath_tx_setup_buffer(hw, skb); - if (unlikely(!bf)) - return -ENOMEM; - - q = skb_get_queue_mapping(skb); - spin_lock_bh(&txq->axq_lock); - if (txq == sc->tx.txq_map[q] && - ++txq->pending_frames > ATH_MAX_QDEPTH && !txq->stopped) { - ath_mac80211_stop_queue(sc, q); - txq->stopped = 1; - } - spin_unlock_bh(&txq->axq_lock); - - ath_tx_start_dma(sc, bf, txctl); - - return 0; -} - -void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb) -{ - struct ath_wiphy *aphy = hw->priv; - struct ath_softc *sc = aphy->sc; - struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; int padpos, padsize; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ath_tx_control txctl; - - memset(&txctl, 0, sizeof(struct ath_tx_control)); + int q; /* * As a temporary workaround, assign seq# here; this will likely need @@ -1793,30 +1766,30 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb) /* Add the padding after the header if this is not already done */ padpos = ath9k_cmn_padpos(hdr->frame_control); padsize = padpos & 3; - if (padsize && skb->len>padpos) { - if (skb_headroom(skb) < padsize) { - ath_print(common, ATH_DBG_XMIT, - "TX CABQ padding failed\n"); - dev_kfree_skb_any(skb); - return; - } + if (padsize && skb->len > padpos) { + if (skb_headroom(skb) < padsize) + return -ENOMEM; + skb_push(skb, padsize); memmove(skb->data, skb->data + padsize, padpos); } - txctl.txq = sc->beacon.cabq; - - ath_print(common, ATH_DBG_XMIT, - "transmitting CABQ packet, skb: %p\n", skb); + bf = ath_tx_setup_buffer(hw, skb); + if (unlikely(!bf)) + return -ENOMEM; - if (ath_tx_start(hw, skb, &txctl) != 0) { - ath_print(common, ATH_DBG_XMIT, "CABQ TX failed\n"); - goto exit; + q = skb_get_queue_mapping(skb); + spin_lock_bh(&txq->axq_lock); + if (txq == sc->tx.txq_map[q] && + ++txq->pending_frames > ATH_MAX_QDEPTH && !txq->stopped) { + ath_mac80211_stop_queue(sc, q); + txq->stopped = 1; } + spin_unlock_bh(&txq->axq_lock); - return; -exit: - dev_kfree_skb_any(skb); + ath_tx_start_dma(sc, bf, txctl); + + return 0; } /*****************/ -- 2.20.1