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authorFelix Fietkau <nbd@openwrt.org>2010-11-14 15:20:10 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-11-17 16:19:23 -0500
commit28d167086227969fd6586953ee4ac682a3c394ff (patch)
treef4dc62f175cc3b934aeadb72375967aba27937bd
parentc5992618259598ade82c386aa1595bf105e92d1f (diff)
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 <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c19
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c25
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c67
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;
}
/*****************/