summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/ath9k/xmit.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/xmit.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c1442
1 files changed, 884 insertions, 558 deletions
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index c59ae43b9b35..0ac9212e42f7 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -34,6 +34,12 @@
#define NUM_SYMBOLS_PER_USEC(_usec) (_usec >> 2)
#define NUM_SYMBOLS_PER_USEC_HALFGI(_usec) (((_usec*5)-4)/18)
+/* Shifts in ar5008_phy.c and ar9003_phy.c are equal for all revisions */
+#define ATH9K_PWRTBL_11NA_OFDM_SHIFT 0
+#define ATH9K_PWRTBL_11NG_OFDM_SHIFT 4
+#define ATH9K_PWRTBL_11NA_HT_SHIFT 8
+#define ATH9K_PWRTBL_11NG_HT_SHIFT 12
+
static u16 bits_per_symbol[][2] = {
/* 20MHz 40MHz */
@@ -47,26 +53,27 @@ static u16 bits_per_symbol[][2] = {
{ 260, 540 }, /* 7: 64-QAM 5/6 */
};
-#define IS_HT_RATE(_rate) ((_rate) & 0x80)
-
static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
struct ath_atx_tid *tid, struct sk_buff *skb);
static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
- int tx_flags, struct ath_txq *txq);
+ int tx_flags, struct ath_txq *txq,
+ struct ieee80211_sta *sta);
static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
struct ath_txq *txq, struct list_head *bf_q,
+ struct ieee80211_sta *sta,
struct ath_tx_status *ts, int txok);
static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
struct list_head *head, bool internal);
static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
struct ath_tx_status *ts, int nframes, int nbad,
int txok);
-static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
- int seqno);
+static void ath_tx_update_baw(struct ath_atx_tid *tid, struct ath_buf *bf);
static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
struct ath_txq *txq,
struct ath_atx_tid *tid,
struct sk_buff *skb);
+static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ath_tx_control *txctl);
enum {
MCS_HT20,
@@ -79,21 +86,27 @@ enum {
/* Aggregation logic */
/*********************/
-void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
- __acquires(&txq->axq_lock)
+static void ath_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
{
- spin_lock_bh(&txq->axq_lock);
-}
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_sta *sta = info->status.status_driver_data[0];
-void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
- __releases(&txq->axq_lock)
-{
- spin_unlock_bh(&txq->axq_lock);
+ if (info->flags & (IEEE80211_TX_CTL_REQ_TX_STATUS |
+ IEEE80211_TX_STATUS_EOSP)) {
+ ieee80211_tx_status_skb(hw, skb);
+ return;
+ }
+
+ if (sta)
+ ieee80211_tx_status_noskb(hw, sta, info);
+
+ dev_kfree_skb(skb);
}
void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq)
__releases(&txq->axq_lock)
{
+ struct ieee80211_hw *hw = sc->hw;
struct sk_buff_head q;
struct sk_buff *skb;
@@ -102,53 +115,169 @@ void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq)
spin_unlock_bh(&txq->axq_lock);
while ((skb = __skb_dequeue(&q)))
- ieee80211_tx_status(sc->hw, skb);
+ ath_tx_status(hw, skb);
}
-static void ath_tx_queue_tid(struct ath_txq *txq, struct ath_atx_tid *tid)
+void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
{
- struct ath_atx_ac *ac = tid->ac;
-
- if (tid->paused)
- return;
+ struct ieee80211_txq *queue =
+ container_of((void *)tid, struct ieee80211_txq, drv_priv);
- if (tid->sched)
- return;
+ ieee80211_schedule_txq(sc->hw, queue);
+}
- tid->sched = true;
- list_add_tail(&tid->list, &ac->tid_q);
+void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue)
+{
+ struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ath_atx_tid *tid = (struct ath_atx_tid *) queue->drv_priv;
+ struct ath_txq *txq = tid->txq;
- if (ac->sched)
- return;
+ ath_dbg(common, QUEUE, "Waking TX queue: %pM (%d)\n",
+ queue->sta ? queue->sta->addr : queue->vif->addr,
+ tid->tidno);
- ac->sched = true;
- list_add_tail(&ac->list, &txq->axq_acq);
+ ath_txq_lock(sc, txq);
+ ath_txq_schedule(sc, txq);
+ ath_txq_unlock(sc, txq);
}
static struct ath_frame_info *get_frame_info(struct sk_buff *skb)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
BUILD_BUG_ON(sizeof(struct ath_frame_info) >
- sizeof(tx_info->rate_driver_data));
- return (struct ath_frame_info *) &tx_info->rate_driver_data[0];
+ sizeof(tx_info->status.status_driver_data));
+ return (struct ath_frame_info *) &tx_info->status.status_driver_data[0];
}
static void ath_send_bar(struct ath_atx_tid *tid, u16 seqno)
{
+ if (!tid->an->sta)
+ return;
+
ieee80211_send_bar(tid->an->vif, tid->an->sta->addr, tid->tidno,
seqno << IEEE80211_SEQ_SEQ_SHIFT);
}
+static bool ath_merge_ratetbl(struct ieee80211_sta *sta, struct ath_buf *bf,
+ struct ieee80211_tx_info *tx_info)
+{
+ struct ieee80211_sta_rates *ratetbl;
+ u8 i;
+
+ if (!sta)
+ return false;
+
+ ratetbl = rcu_dereference(sta->rates);
+ if (!ratetbl)
+ return false;
+
+ if (tx_info->control.rates[0].idx < 0 ||
+ tx_info->control.rates[0].count == 0)
+ {
+ i = 0;
+ } else {
+ bf->rates[0] = tx_info->control.rates[0];
+ i = 1;
+ }
+
+ for ( ; i < IEEE80211_TX_MAX_RATES; i++) {
+ bf->rates[i].idx = ratetbl->rate[i].idx;
+ bf->rates[i].flags = ratetbl->rate[i].flags;
+ if (tx_info->control.use_rts)
+ bf->rates[i].count = ratetbl->rate[i].count_rts;
+ else if (tx_info->control.use_cts_prot)
+ bf->rates[i].count = ratetbl->rate[i].count_cts;
+ else
+ bf->rates[i].count = ratetbl->rate[i].count;
+ }
+
+ return true;
+}
+
static void ath_set_rates(struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ath_buf *bf)
{
- ieee80211_get_tx_rates(vif, sta, bf->bf_mpdu, bf->rates,
- ARRAY_SIZE(bf->rates));
+ struct ieee80211_tx_info *tx_info;
+
+ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
+
+ if (!ath_merge_ratetbl(sta, bf, tx_info))
+ ieee80211_get_tx_rates(vif, sta, bf->bf_mpdu, bf->rates,
+ ARRAY_SIZE(bf->rates));
+}
+
+static void ath_txq_skb_done(struct ath_softc *sc, struct sk_buff *skb)
+{
+ struct ath_frame_info *fi = get_frame_info(skb);
+ struct ath_txq *txq;
+ int q = fi->txq;
+
+ if (q < 0)
+ return;
+
+ txq = sc->tx.txq_map[q];
+ if (WARN_ON(--txq->pending_frames < 0))
+ txq->pending_frames = 0;
+
+}
+
+static struct ath_atx_tid *
+ath_get_skb_tid(struct ath_node *an, struct sk_buff *skb)
+{
+ u8 tidno = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
+ return ATH_AN_2_TID(an, tidno);
+}
+
+static int
+ath_tid_pull(struct ath_atx_tid *tid, struct sk_buff **skbuf)
+{
+ struct ieee80211_txq *txq = container_of((void*)tid, struct ieee80211_txq, drv_priv);
+ struct ath_softc *sc = tid->an->sc;
+ struct ieee80211_hw *hw = sc->hw;
+ struct ath_tx_control txctl = {
+ .txq = tid->txq,
+ .sta = tid->an->sta,
+ };
+ struct sk_buff *skb;
+ struct ath_frame_info *fi;
+ int q, ret;
+
+ skb = ieee80211_tx_dequeue(hw, txq);
+ if (!skb)
+ return -ENOENT;
+
+ ret = ath_tx_prepare(hw, skb, &txctl);
+ if (ret) {
+ ieee80211_free_txskb(hw, skb);
+ return ret;
+ }
+
+ q = skb_get_queue_mapping(skb);
+ if (tid->txq == sc->tx.txq_map[q]) {
+ fi = get_frame_info(skb);
+ fi->txq = q;
+ ++tid->txq->pending_frames;
+ }
+
+ *skbuf = skb;
+ return 0;
+}
+
+static int ath_tid_dequeue(struct ath_atx_tid *tid,
+ struct sk_buff **skb)
+{
+ int ret = 0;
+ *skb = __skb_dequeue(&tid->retry_q);
+ if (!*skb)
+ ret = ath_tid_pull(tid, skb);
+
+ return ret;
}
static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
{
- struct ath_txq *txq = tid->ac->txq;
+ struct ath_txq *txq = tid->txq;
struct sk_buff *skb;
struct ath_buf *bf;
struct list_head bf_head;
@@ -160,27 +289,22 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
memset(&ts, 0, sizeof(ts));
- while ((skb = __skb_dequeue(&tid->buf_q))) {
+ while ((skb = __skb_dequeue(&tid->retry_q))) {
fi = get_frame_info(skb);
bf = fi->bf;
-
if (!bf) {
- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
- if (!bf) {
- ieee80211_free_txskb(sc->hw, skb);
- continue;
- }
+ ath_txq_skb_done(sc, skb);
+ ieee80211_free_txskb(sc->hw, skb);
+ continue;
}
- if (fi->retries) {
- list_add_tail(&bf->list, &bf_head);
- ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
+ if (fi->baw_tracked) {
+ ath_tx_update_baw(tid, bf);
sendbar = true;
- } else {
- ath_set_rates(tid->an->vif, tid->an->sta, bf);
- ath_tx_send_normal(sc, txq, NULL, skb);
}
+
+ list_add_tail(&bf->list, &bf_head);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, &ts, 0);
}
if (sendbar) {
@@ -190,11 +314,15 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
}
}
-static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
- int seqno)
+static void ath_tx_update_baw(struct ath_atx_tid *tid, struct ath_buf *bf)
{
+ struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu);
+ u16 seqno = bf->bf_state.seqno;
int index, cindex;
+ if (!fi->baw_tracked)
+ return;
+
index = ATH_BA_INDEX(tid->seq_start, seqno);
cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
@@ -208,14 +336,19 @@ static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
}
}
-static void ath_tx_addto_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
- u16 seqno)
+static void ath_tx_addto_baw(struct ath_atx_tid *tid, struct ath_buf *bf)
{
+ struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu);
+ u16 seqno = bf->bf_state.seqno;
int index, cindex;
+ if (fi->baw_tracked)
+ return;
+
index = ATH_BA_INDEX(tid->seq_start, seqno);
cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
__set_bit(cindex, tid->tx_buf);
+ fi->baw_tracked = 1;
if (index >= ((tid->baw_tail - tid->baw_head) &
(ATH_TID_MAX_BUFS - 1))) {
@@ -224,12 +357,6 @@ static void ath_tx_addto_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
}
}
-/*
- * TODO: For frame(s) that are in the retry state, we will reuse the
- * sequence number(s) without setting the retry bit. The
- * alternative is to give up on these and BAR the receiver's window
- * forward.
- */
static void ath_tid_drain(struct ath_softc *sc, struct ath_txq *txq,
struct ath_atx_tid *tid)
@@ -243,24 +370,18 @@ static void ath_tid_drain(struct ath_softc *sc, struct ath_txq *txq,
memset(&ts, 0, sizeof(ts));
INIT_LIST_HEAD(&bf_head);
- while ((skb = __skb_dequeue(&tid->buf_q))) {
+ while (ath_tid_dequeue(tid, &skb) == 0) {
fi = get_frame_info(skb);
bf = fi->bf;
if (!bf) {
- ath_tx_complete(sc, skb, ATH_TX_ERROR, txq);
+ ath_tx_complete(sc, skb, ATH_TX_ERROR, txq, NULL);
continue;
}
list_add_tail(&bf->list, &bf_head);
-
- ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, &ts, 0);
}
-
- tid->seq_next = tid->seq_start;
- tid->baw_tail = tid->baw_head;
- tid->bar_index = -1;
}
static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq,
@@ -271,7 +392,7 @@ static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq,
struct ieee80211_hdr *hdr;
int prev = fi->retries;
- TX_STAT_INC(txq->axq_qnum, a_retries);
+ TX_STAT_INC(sc, txq->axq_qnum, a_retries);
fi->retries += count;
if (prev > 0)
@@ -323,15 +444,14 @@ static struct ath_buf* ath_clone_txbuf(struct ath_softc *sc, struct ath_buf *bf)
tbf->bf_buf_addr = bf->bf_buf_addr;
memcpy(tbf->bf_desc, bf->bf_desc, sc->sc_ah->caps.tx_desc_len);
tbf->bf_state = bf->bf_state;
+ tbf->bf_state.stale = false;
return tbf;
}
-static void ath_tx_count_frames(struct ath_softc *sc, struct ath_buf *bf,
- struct ath_tx_status *ts, int txok,
- int *nframes, int *nbad)
+static void ath_tx_count_frames(struct ath_buf *bf, struct ath_tx_status *ts,
+ int txok, int *nframes, int *nbad)
{
- struct ath_frame_info *fi;
u16 seq_st = 0;
u32 ba[WME_BA_BMP_SIZE >> 5];
int ba_index;
@@ -341,13 +461,14 @@ static void ath_tx_count_frames(struct ath_softc *sc, struct ath_buf *bf,
*nframes = 0;
isaggr = bf_isaggr(bf);
+ memset(ba, 0, WME_BA_BMP_SIZE >> 3);
+
if (isaggr) {
seq_st = ts->ts_seqnum;
- memcpy(ba, &ts->ba_low, WME_BA_BMP_SIZE >> 3);
+ memcpy(ba, &ts->ba, WME_BA_BMP_SIZE >> 3);
}
while (bf) {
- fi = get_frame_info(bf->bf_mpdu);
ba_index = ATH_BA_INDEX(seq_st, bf->bf_state.seqno);
(*nframes)++;
@@ -361,15 +482,13 @@ static void ath_tx_count_frames(struct ath_softc *sc, struct ath_buf *bf,
static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
struct ath_buf *bf, struct list_head *bf_q,
+ struct ieee80211_sta *sta,
+ struct ath_atx_tid *tid,
struct ath_tx_status *ts, int txok)
{
struct ath_node *an = NULL;
struct sk_buff *skb;
- struct ieee80211_sta *sta;
- struct ieee80211_hw *hw = sc->hw;
- struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *tx_info;
- struct ath_atx_tid *tid = NULL;
struct ath_buf *bf_next, *bf_last = bf->bf_lastbf;
struct list_head bf_head;
struct sk_buff_head bf_pending;
@@ -380,14 +499,11 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
struct ieee80211_tx_rate rates[4];
struct ath_frame_info *fi;
int nframes;
- u8 tidno;
bool flush = !!(ts->ts_status & ATH9K_TX_FLUSH);
int i, retries;
int bar_index = -1;
skb = bf->bf_mpdu;
- hdr = (struct ieee80211_hdr *)skb->data;
-
tx_info = IEEE80211_SKB_CB(skb);
memcpy(rates, bf->rates, sizeof(rates));
@@ -396,20 +512,15 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
for (i = 0; i < ts->ts_rateindex; i++)
retries += rates[i].count;
- rcu_read_lock();
-
- sta = ieee80211_find_sta_by_ifaddr(hw, hdr->addr1, hdr->addr2);
if (!sta) {
- rcu_read_unlock();
-
INIT_LIST_HEAD(&bf_head);
while (bf) {
bf_next = bf->bf_next;
- if (!bf->bf_stale || bf_next != NULL)
+ if (!bf->bf_state.stale || bf_next != NULL)
list_move_tail(&bf->list, &bf_head);
- ath_tx_complete_buf(sc, bf, txq, &bf_head, ts, 0);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, ts, 0);
bf = bf_next;
}
@@ -417,8 +528,6 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
}
an = (struct ath_node *)sta->drv_priv;
- tidno = ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
- tid = ATH_AN_2_TID(an, tidno);
seq_first = tid->seq_start;
isba = ts->ts_flags & ATH9K_TX_BA;
@@ -430,7 +539,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
* Only BlockAcks have a TID and therefore normal Acks cannot be
* checked
*/
- if (isba && tidno != ts->tid)
+ if (isba && tid->tidno != ts->tid)
txok = false;
isaggr = bf_isaggr(bf);
@@ -439,12 +548,12 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
if (isaggr && txok) {
if (ts->ts_flags & ATH9K_TX_BA) {
seq_st = ts->ts_seqnum;
- memcpy(ba, &ts->ba_low, WME_BA_BMP_SIZE >> 3);
+ memcpy(ba, &ts->ba, WME_BA_BMP_SIZE >> 3);
} else {
/*
* AR5416 can become deaf/mute when BA
* issue happens. Chip needs to be reset.
- * But AP code may have sychronization issues
+ * But AP code may have synchronization issues
* when perform internal reset in this routine.
* Only enable reset in STA mode for now.
*/
@@ -455,7 +564,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
__skb_queue_head_init(&bf_pending);
- ath_tx_count_frames(sc, bf, ts, txok, &nframes, &nbad);
+ ath_tx_count_frames(bf, ts, txok, &nframes, &nbad);
while (bf) {
u16 seqno = bf->bf_state.seqno;
@@ -466,7 +575,8 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
tx_info = IEEE80211_SKB_CB(skb);
fi = get_frame_info(skb);
- if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno)) {
+ if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno) ||
+ !tid->active) {
/*
* Outside of the current BlockAck window,
* maybe part of a previous session
@@ -499,7 +609,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
* not a holding desc.
*/
INIT_LIST_HEAD(&bf_head);
- if (bf_next != NULL || !bf_last->bf_stale)
+ if (bf_next != NULL || !bf_last->bf_state.stale)
list_move_tail(&bf->list, &bf_head);
if (!txpending) {
@@ -507,15 +617,19 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
* complete the acked-ones/xretried ones; update
* block-ack window
*/
- ath_tx_update_baw(sc, tid, seqno);
+ ath_tx_update_baw(tid, bf);
if (rc_update && (acked_cnt == 1 || txfail_cnt == 1)) {
memcpy(tx_info->control.rates, rates, sizeof(rates));
ath_tx_rc_status(sc, bf, ts, nframes, nbad, txok);
rc_update = false;
+ if (bf == bf->bf_lastbf)
+ ath_dynack_sample_tx_ts(sc->sc_ah,
+ bf->bf_mpdu,
+ ts, sta);
}
- ath_tx_complete_buf(sc, bf, txq, &bf_head, ts,
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, sta, ts,
!txfail);
} else {
if (tx_info->flags & IEEE80211_TX_STATUS_EOSP) {
@@ -523,7 +637,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
ieee80211_sta_eosp(sta);
}
/* retry the un-acked ones */
- if (bf->bf_next == NULL && bf_last->bf_stale) {
+ if (bf->bf_next == NULL && bf_last->bf_state.stale) {
struct ath_buf *tbf;
tbf = ath_clone_txbuf(sc, bf_last);
@@ -533,10 +647,11 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
* run out of tx buf.
*/
if (!tbf) {
- ath_tx_update_baw(sc, tid, seqno);
+ ath_tx_update_baw(tid, bf);
ath_tx_complete_buf(sc, bf, txq,
- &bf_head, ts, 0);
+ &bf_head, NULL, ts,
+ 0);
bar_index = max_t(int, bar_index,
ATH_BA_INDEX(seq_first, seqno));
break;
@@ -560,12 +675,11 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
if (an->sleeping)
ieee80211_sta_set_buffered(sta, tid->tidno, true);
- skb_queue_splice(&bf_pending, &tid->buf_q);
+ skb_queue_splice_tail(&bf_pending, &tid->retry_q);
if (!an->sleeping) {
- ath_tx_queue_tid(txq, tid);
-
+ ath_tx_queue_tid(sc, tid);
if (ts->ts_status & (ATH9K_TXERR_FILT | ATH9K_TXERR_XRETRY))
- tid->ac->clear_ps_filter = true;
+ tid->clear_ps_filter = true;
}
}
@@ -580,8 +694,6 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
ath_txq_lock(sc, txq);
}
- rcu_read_unlock();
-
if (needreset)
ath9k_queue_reset(sc, RESET_TYPE_TX_ERROR);
}
@@ -592,11 +704,33 @@ static bool bf_is_ampdu_not_probing(struct ath_buf *bf)
return bf_isampdu(bf) && !(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE);
}
+static void ath_tx_count_airtime(struct ath_softc *sc,
+ struct ieee80211_sta *sta,
+ struct ath_buf *bf,
+ struct ath_tx_status *ts,
+ u8 tid)
+{
+ u32 airtime = 0;
+ int i;
+
+ airtime += ts->duration * (ts->ts_longretry + 1);
+ for(i = 0; i < ts->ts_rateindex; i++) {
+ int rate_dur = ath9k_hw_get_duration(sc->sc_ah, bf->bf_desc, i);
+ airtime += rate_dur * bf->rates[i].count;
+ }
+
+ ieee80211_sta_register_airtime(sta, tid, airtime, 0);
+}
+
static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
struct ath_tx_status *ts, struct ath_buf *bf,
struct list_head *bf_head)
{
+ struct ieee80211_hw *hw = sc->hw;
struct ieee80211_tx_info *info;
+ struct ieee80211_sta *sta;
+ struct ieee80211_hdr *hdr;
+ struct ath_atx_tid *tid = NULL;
bool txok, flush;
txok = !(ts->ts_status & ATH9K_TXERR_MASK);
@@ -607,18 +741,33 @@ static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
if (bf_is_ampdu_not_probing(bf))
txq->axq_ampdu_depth--;
+ ts->duration = ath9k_hw_get_duration(sc->sc_ah, bf->bf_desc,
+ ts->ts_rateindex);
+
+ hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
+ sta = ieee80211_find_sta_by_ifaddr(hw, hdr->addr1, hdr->addr2);
+ if (sta) {
+ struct ath_node *an = (struct ath_node *)sta->drv_priv;
+ tid = ath_get_skb_tid(an, bf->bf_mpdu);
+ ath_tx_count_airtime(sc, sta, bf, ts, tid->tidno);
+ if (ts->ts_status & (ATH9K_TXERR_FILT | ATH9K_TXERR_XRETRY))
+ tid->clear_ps_filter = true;
+ }
+
if (!bf_isampdu(bf)) {
if (!flush) {
info = IEEE80211_SKB_CB(bf->bf_mpdu);
memcpy(info->control.rates, bf->rates,
sizeof(info->control.rates));
ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok);
+ ath_dynack_sample_tx_ts(sc->sc_ah, bf->bf_mpdu, ts,
+ sta);
}
- ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok);
+ ath_tx_complete_buf(sc, bf, txq, bf_head, sta, ts, txok);
} else
- ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
+ ath_tx_complete_aggr(sc, txq, bf, bf_head, sta, tid, ts, txok);
- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) && !flush)
+ if (!flush)
ath_txq_schedule(sc, txq);
}
@@ -652,7 +801,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
struct ieee80211_tx_rate *rates;
u32 max_4ms_framelen, frmlen;
u16 aggr_limit, bt_aggr_limit, legacy = 0;
- int q = tid->ac->txq->mac80211_qnum;
+ int q = tid->txq->mac80211_qnum;
int i;
skb = bf->bf_mpdu;
@@ -705,11 +854,6 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
if (bt_aggr_limit)
aggr_limit = bt_aggr_limit;
- /*
- * h/w can accept aggregates up to 16 bit lengths (65535).
- * The IE, however can hold up to 65536, which shows up here
- * as zero. Ignore 65536 since we are constrained by hw.
- */
if (tid->an->maxampdu)
aggr_limit = min(aggr_limit, tid->an->maxampdu);
@@ -790,37 +934,73 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
return ndelim;
}
-static struct ath_buf *
+static int
ath_tx_get_tid_subframe(struct ath_softc *sc, struct ath_txq *txq,
- struct ath_atx_tid *tid)
+ struct ath_atx_tid *tid, struct ath_buf **buf)
{
+ struct ieee80211_tx_info *tx_info;
struct ath_frame_info *fi;
- struct sk_buff *skb;
struct ath_buf *bf;
+ struct sk_buff *skb, *first_skb = NULL;
u16 seqno;
+ int ret;
while (1) {
- skb = skb_peek(&tid->buf_q);
- if (!skb)
- break;
+ ret = ath_tid_dequeue(tid, &skb);
+ if (ret < 0)
+ return ret;
fi = get_frame_info(skb);
bf = fi->bf;
if (!fi->bf)
bf = ath_tx_setup_buffer(sc, txq, tid, skb);
+ else
+ bf->bf_state.stale = false;
if (!bf) {
- __skb_unlink(skb, &tid->buf_q);
+ ath_txq_skb_done(sc, skb);
ieee80211_free_txskb(sc->hw, skb);
continue;
}
+ bf->bf_next = NULL;
+ bf->bf_lastbf = bf;
+
+ tx_info = IEEE80211_SKB_CB(skb);
+ tx_info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT |
+ IEEE80211_TX_STATUS_EOSP);
+
+ /*
+ * No aggregation session is running, but there may be frames
+ * from a previous session or a failed attempt in the queue.
+ * Send them out as normal data frames
+ */
+ if (!tid->active)
+ tx_info->flags &= ~IEEE80211_TX_CTL_AMPDU;
+
+ if (!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
+ bf->bf_state.bf_type = 0;
+ break;
+ }
+
bf->bf_state.bf_type = BUF_AMPDU | BUF_AGGR;
seqno = bf->bf_state.seqno;
/* do not step over block-ack window */
- if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno))
- break;
+ if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno)) {
+ __skb_queue_tail(&tid->retry_q, skb);
+
+ /* If there are other skbs in the retry q, they are
+ * probably within the BAW, so loop immediately to get
+ * one of them. Otherwise the queue can get stuck. */
+ if (!skb_queue_is_first(&tid->retry_q, skb) &&
+ !WARN_ON(skb == first_skb)) {
+ if(!first_skb) /* infinite loop prevention */
+ first_skb = skb;
+ continue;
+ }
+ return -EINPROGRESS;
+ }
if (tid->bar_index > ATH_BA_INDEX(tid->seq_start, seqno)) {
struct ath_tx_status ts = {};
@@ -828,73 +1008,55 @@ ath_tx_get_tid_subframe(struct ath_softc *sc, struct ath_txq *txq,
INIT_LIST_HEAD(&bf_head);
list_add(&bf->list, &bf_head);
- __skb_unlink(skb, &tid->buf_q);
- ath_tx_update_baw(sc, tid, seqno);
- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
+ ath_tx_update_baw(tid, bf);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, &ts, 0);
continue;
}
- bf->bf_next = NULL;
- bf->bf_lastbf = bf;
- return bf;
+ if (bf_isampdu(bf))
+ ath_tx_addto_baw(tid, bf);
+
+ break;
}
- return NULL;
+ *buf = bf;
+ return 0;
}
-static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
- struct ath_txq *txq,
- struct ath_atx_tid *tid,
- struct list_head *bf_q,
- int *aggr_len)
+static int
+ath_tx_form_aggr(struct ath_softc *sc, struct ath_txq *txq,
+ struct ath_atx_tid *tid, struct list_head *bf_q,
+ struct ath_buf *bf_first)
{
#define PADBYTES(_len) ((4 - ((_len) % 4)) % 4)
- struct ath_buf *bf, *bf_first = NULL, *bf_prev = NULL;
- int rl = 0, nframes = 0, ndelim, prev_al = 0;
+ struct ath_buf *bf = bf_first, *bf_prev = NULL;
+ int nframes = 0, ndelim, ret;
u16 aggr_limit = 0, al = 0, bpad = 0,
- al_delta, h_baw = tid->baw_size / 2;
- enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
+ al_delta, h_baw = tid->baw_size / 2;
struct ieee80211_tx_info *tx_info;
struct ath_frame_info *fi;
struct sk_buff *skb;
- do {
- bf = ath_tx_get_tid_subframe(sc, txq, tid);
- if (!bf) {
- status = ATH_AGGR_BAW_CLOSED;
- break;
- }
+ bf = bf_first;
+ aggr_limit = ath_lookup_rate(sc, bf, tid);
+
+ while (bf)
+ {
skb = bf->bf_mpdu;
fi = get_frame_info(skb);
- if (!bf_first)
- bf_first = bf;
-
- if (!rl) {
- ath_set_rates(tid->an->vif, tid->an->sta, bf);
- aggr_limit = ath_lookup_rate(sc, bf, tid);
- rl = 1;
- }
-
/* do not exceed aggregation limit */
al_delta = ATH_AGGR_DELIM_SZ + fi->framelen;
-
- if (nframes &&
- ((aggr_limit < (al + bpad + al_delta + prev_al)) ||
- ath_lookup_legacy(bf))) {
- status = ATH_AGGR_LIMITED;
- break;
- }
-
- tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
- if (nframes && (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
- break;
-
- /* do not exceed subframe limit */
- if (nframes >= min((int)h_baw, ATH_AMPDU_SUBFRAME_DEFAULT)) {
- status = ATH_AGGR_LIMITED;
- break;
+ if (nframes) {
+ if (aggr_limit < al + bpad + al_delta ||
+ ath_lookup_legacy(bf) || nframes >= h_baw)
+ goto stop;
+
+ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
+ if ((tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) ||
+ !(tx_info->flags & IEEE80211_TX_CTL_AMPDU))
+ goto stop;
}
/* add padding for previous frame to aggregation length */
@@ -912,22 +1074,33 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
bf->bf_next = NULL;
/* link buffers of this frame to the aggregate */
- if (!fi->retries)
- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
bf->bf_state.ndelim = ndelim;
- __skb_unlink(skb, &tid->buf_q);
list_add_tail(&bf->list, bf_q);
if (bf_prev)
bf_prev->bf_next = bf;
bf_prev = bf;
- } while (!skb_queue_empty(&tid->buf_q));
+ ret = ath_tx_get_tid_subframe(sc, txq, tid, &bf);
+ if (ret < 0)
+ break;
+ }
+ goto finish;
+stop:
+ __skb_queue_tail(&tid->retry_q, bf->bf_mpdu);
+finish:
+ bf = bf_first;
+ bf->bf_lastbf = bf_prev;
- *aggr_len = al;
+ if (bf == bf_prev) {
+ al = get_frame_info(bf->bf_mpdu)->framelen;
+ bf->bf_state.bf_type = BUF_AMPDU;
+ } else {
+ TX_STAT_INC(sc, txq->axq_qnum, a_aggr);
+ }
- return status;
+ return al;
#undef PADBYTES
}
@@ -937,8 +1110,8 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
* width - 0 for 20 MHz, 1 for 40 MHz
* half_gi - to use 4us v/s 3.6 us for symbol time
*/
-static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen,
- int width, int half_gi, bool shortPreamble)
+u32 ath_pkt_duration(u8 rix, int pktlen, int width,
+ int half_gi, bool shortPreamble)
{
u32 nbits, nsymbits, duration, nsymbols;
int streams;
@@ -966,11 +1139,11 @@ static int ath_max_framelen(int usec, int mcs, bool ht40, bool sgi)
int symbols, bits;
int bytes = 0;
+ usec -= L_STF + L_LTF + L_SIG + HT_SIG + HT_STF + HT_LTF(streams);
symbols = sgi ? TIME_SYMBOLS_HALFGI(usec) : TIME_SYMBOLS(usec);
bits = symbols * bits_per_symbol[mcs % 8][ht40] * streams;
bits -= OFDM_PLCP_BITS;
bytes = bits / 8;
- bytes -= L_STF + L_LTF + L_SIG + HT_SIG + HT_STF + HT_LTF(streams);
if (bytes > 65532)
bytes = 65532;
@@ -998,16 +1171,104 @@ void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop)
}
}
+static u8 ath_get_rate_txpower(struct ath_softc *sc, struct ath_buf *bf,
+ u8 rateidx, bool is_40, bool is_cck, bool is_mcs)
+{
+ u8 max_power;
+ struct sk_buff *skb;
+ struct ath_frame_info *fi;
+ struct ieee80211_tx_info *info;
+ struct ath_hw *ah = sc->sc_ah;
+ bool is_2ghz, is_5ghz, use_stbc;
+
+ if (sc->tx99_state || !ah->tpc_enabled)
+ return MAX_RATE_POWER;
+
+ skb = bf->bf_mpdu;
+ fi = get_frame_info(skb);
+ info = IEEE80211_SKB_CB(skb);
+
+ is_2ghz = info->band == NL80211_BAND_2GHZ;
+ is_5ghz = info->band == NL80211_BAND_5GHZ;
+ use_stbc = is_mcs && rateidx < 8 && (info->flags &
+ IEEE80211_TX_CTL_STBC);
+
+ if (is_mcs)
+ rateidx += is_5ghz ? ATH9K_PWRTBL_11NA_HT_SHIFT
+ : ATH9K_PWRTBL_11NG_HT_SHIFT;
+ else if (is_2ghz && !is_cck)
+ rateidx += ATH9K_PWRTBL_11NG_OFDM_SHIFT;
+ else
+ rateidx += ATH9K_PWRTBL_11NA_OFDM_SHIFT;
+
+ if (!AR_SREV_9300_20_OR_LATER(ah)) {
+ int txpower = fi->tx_power;
+
+ if (is_40) {
+ u8 power_ht40delta;
+ struct ar5416_eeprom_def *eep = &ah->eeprom.def;
+ u16 eeprom_rev = ah->eep_ops->get_eeprom_rev(ah);
+
+ if (eeprom_rev >= AR5416_EEP_MINOR_VER_2) {
+ struct modal_eep_header *pmodal;
+
+ pmodal = &eep->modalHeader[is_2ghz];
+ power_ht40delta = pmodal->ht40PowerIncForPdadc;
+ } else {
+ power_ht40delta = 2;
+ }
+ txpower += power_ht40delta;
+ }
+
+ if (AR_SREV_9287(ah) || AR_SREV_9285(ah) ||
+ AR_SREV_9271(ah)) {
+ txpower -= 2 * AR9287_PWR_TABLE_OFFSET_DB;
+ } else if (AR_SREV_9280_20_OR_LATER(ah)) {
+ s8 power_offset;
+
+ power_offset = ah->eep_ops->get_eeprom(ah,
+ EEP_PWR_TABLE_OFFSET);
+ txpower -= 2 * power_offset;
+ }
+
+ if (OLC_FOR_AR9280_20_LATER(ah) && is_cck)
+ txpower -= 2;
+
+ txpower = max(txpower, 0);
+ max_power = min_t(u8, ah->tx_power[rateidx], txpower);
+
+ /* XXX: clamp minimum TX power at 1 for AR9160 since if
+ * max_power is set to 0, frames are transmitted at max
+ * TX power
+ */
+ if (!max_power && !AR_SREV_9280_20_OR_LATER(ah))
+ max_power = 1;
+ } else if (!bf->bf_state.bfs_paprd) {
+ if (use_stbc)
+ max_power = min_t(u8, ah->tx_power_stbc[rateidx],
+ fi->tx_power);
+ else
+ max_power = min_t(u8, ah->tx_power[rateidx],
+ fi->tx_power);
+ } else {
+ max_power = ah->paprd_training_power;
+ }
+
+ return max_power;
+}
+
static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf,
- struct ath_tx_info *info, int len)
+ struct ath_tx_info *info, int len, bool rts)
{
struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
struct sk_buff *skb;
struct ieee80211_tx_info *tx_info;
struct ieee80211_tx_rate *rates;
const struct ieee80211_rate *rate;
struct ieee80211_hdr *hdr;
struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu);
+ u32 rts_thresh = sc->hw->wiphy->rts_threshold;
int i;
u8 rix = 0;
@@ -1021,16 +1282,26 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf,
info->rtscts_rate = fi->rtscts_rate;
for (i = 0; i < ARRAY_SIZE(bf->rates); i++) {
- bool is_40, is_sgi, is_sp;
+ bool is_40, is_sgi, is_sp, is_cck;
int phy;
if (!rates[i].count || (rates[i].idx < 0))
- continue;
+ break;
rix = rates[i].idx;
info->rates[i].Tries = rates[i].count;
- if (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
+ /*
+ * Handle RTS threshold for unaggregated HT frames.
+ */
+ if (bf_isampdu(bf) && !bf_isaggr(bf) &&
+ (rates[i].flags & IEEE80211_TX_RC_MCS) &&
+ unlikely(rts_thresh != (u32) -1)) {
+ if (!rts_thresh || (len > rts_thresh))
+ rts = true;
+ }
+
+ if (rts || rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
info->rates[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS;
info->flags |= ATH9K_TXDESC_RTSENA;
} else if (rates[i].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
@@ -1052,16 +1323,24 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf,
info->rates[i].Rate = rix | 0x80;
info->rates[i].ChSel = ath_txchainmask_reduction(sc,
ah->txchainmask, info->rates[i].Rate);
- info->rates[i].PktDuration = ath_pkt_duration(sc, rix, len,
+ info->rates[i].PktDuration = ath_pkt_duration(rix, len,
is_40, is_sgi, is_sp);
if (rix < 8 && (tx_info->flags & IEEE80211_TX_CTL_STBC))
info->rates[i].RateFlags |= ATH9K_RATESERIES_STBC;
+ if (rix >= 8 && fi->dyn_smps) {
+ info->rates[i].RateFlags |=
+ ATH9K_RATESERIES_RTS_CTS;
+ info->flags |= ATH9K_TXDESC_CTSENA;
+ }
+
+ info->txpower[i] = ath_get_rate_txpower(sc, bf, rix,
+ is_40, false, true);
continue;
}
/* legacy rates */
- rate = &sc->sbands[tx_info->band].bitrates[rates[i].idx];
- if ((tx_info->band == IEEE80211_BAND_2GHZ) &&
+ rate = &common->sbands[tx_info->band].bitrates[rates[i].idx];
+ if ((tx_info->band == NL80211_BAND_2GHZ) &&
!(rate->flags & IEEE80211_RATE_ERP_G))
phy = WLAN_RC_PHY_CCK;
else
@@ -1083,6 +1362,10 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf,
info->rates[i].PktDuration = ath9k_hw_computetxtime(sc->sc_ah,
phy, rate->bitrate * 100, len, rix, is_sp);
+
+ is_cck = IS_CCK_RATE(info->rates[i].Rate);
+ info->txpower[i] = ath_get_rate_txpower(sc, bf, rix, false,
+ is_cck, false);
}
/* For AR5416 - RTS cannot be followed by a frame larger than 8K */
@@ -1123,11 +1406,12 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
struct ath_hw *ah = sc->sc_ah;
struct ath_buf *bf_first = NULL;
struct ath_tx_info info;
+ u32 rts_thresh = sc->hw->wiphy->rts_threshold;
+ bool rts = false;
memset(&info, 0, sizeof(info));
info.is_first = true;
info.is_last = true;
- info.txpower = MAX_RATE_POWER;
info.qcu = txq->axq_qnum;
while (bf) {
@@ -1140,12 +1424,13 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
if (bf->bf_next)
info.link = bf->bf_next->bf_daddr;
else
- info.link = 0;
+ info.link = (sc->tx99_state) ? bf->bf_daddr : 0;
if (!bf_first) {
bf_first = bf;
- info.flags = ATH9K_TXDESC_INTREQ;
+ if (!sc->tx99_state)
+ info.flags = ATH9K_TXDESC_INTREQ;
if ((tx_info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT) ||
txq == sc->tx.uapsdq)
info.flags |= ATH9K_TXDESC_CLRDMASK;
@@ -1159,7 +1444,26 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
info.flags |= (u32) bf->bf_state.bfs_paprd <<
ATH9K_TXDESC_PAPRD_S;
- ath_buf_set_rate(sc, bf, &info, len);
+ /*
+ * mac80211 doesn't handle RTS threshold for HT because
+ * the decision has to be taken based on AMPDU length
+ * and aggregation is done entirely inside ath9k.
+ * Set the RTS/CTS flag for the first subframe based
+ * on the threshold.
+ */
+ if (aggr && (bf == bf_first) &&
+ unlikely(rts_thresh != (u32) -1)) {
+ /*
+ * "len" is the size of the entire AMPDU.
+ */
+ if (!rts_thresh || (len > rts_thresh))
+ rts = true;
+ }
+
+ if (!aggr)
+ len = fi->framelen;
+
+ ath_buf_set_rate(sc, bf, &info, len, rts);
}
info.buf_addr[0] = bf->bf_buf_addr;
@@ -1188,96 +1492,133 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
}
}
-static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
- struct ath_atx_tid *tid)
+static void
+ath_tx_form_burst(struct ath_softc *sc, struct ath_txq *txq,
+ struct ath_atx_tid *tid, struct list_head *bf_q,
+ struct ath_buf *bf_first)
{
- struct ath_buf *bf;
- enum ATH_AGGR_STATUS status;
- struct ieee80211_tx_info *tx_info;
- struct list_head bf_q;
- int aggr_len;
+ struct ath_buf *bf = bf_first, *bf_prev = NULL;
+ int nframes = 0, ret;
do {
- if (skb_queue_empty(&tid->buf_q))
- return;
+ struct ieee80211_tx_info *tx_info;
- INIT_LIST_HEAD(&bf_q);
+ nframes++;
+ list_add_tail(&bf->list, bf_q);
+ if (bf_prev)
+ bf_prev->bf_next = bf;
+ bf_prev = bf;
- status = ath_tx_form_aggr(sc, txq, tid, &bf_q, &aggr_len);
+ if (nframes >= 2)
+ break;
- /*
- * no frames picked up to be aggregated;
- * block-ack window is not open.
- */
- if (list_empty(&bf_q))
+ ret = ath_tx_get_tid_subframe(sc, txq, tid, &bf);
+ if (ret < 0)
break;
- bf = list_first_entry(&bf_q, struct ath_buf, list);
- bf->bf_lastbf = list_entry(bf_q.prev, struct ath_buf, list);
tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-
- if (tid->ac->clear_ps_filter) {
- tid->ac->clear_ps_filter = false;
- tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
- } else {
- tx_info->flags &= ~IEEE80211_TX_CTL_CLEAR_PS_FILT;
+ if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
+ __skb_queue_tail(&tid->retry_q, bf->bf_mpdu);
+ break;
}
- /* if only one frame, send as non-aggregate */
- if (bf == bf->bf_lastbf) {
- aggr_len = get_frame_info(bf->bf_mpdu)->framelen;
- bf->bf_state.bf_type = BUF_AMPDU;
- } else {
- TX_STAT_INC(txq->axq_qnum, a_aggr);
- }
+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
+ } while (1);
+}
+
+static int ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
+ struct ath_atx_tid *tid)
+{
+ struct ath_buf *bf = NULL;
+ struct ieee80211_tx_info *tx_info;
+ struct list_head bf_q;
+ int aggr_len = 0, ret;
+ bool aggr;
+
+ INIT_LIST_HEAD(&bf_q);
+
+ ret = ath_tx_get_tid_subframe(sc, txq, tid, &bf);
+ if (ret < 0)
+ return ret;
+
+ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
+ aggr = !!(tx_info->flags & IEEE80211_TX_CTL_AMPDU);
+ if ((aggr && txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) ||
+ (!aggr && txq->axq_depth >= ATH_NON_AGGR_MIN_QDEPTH)) {
+ __skb_queue_tail(&tid->retry_q, bf->bf_mpdu);
+ return -EBUSY;
+ }
- ath_tx_fill_desc(sc, bf, txq, aggr_len);
- ath_tx_txqaddbuf(sc, txq, &bf_q, false);
- } while (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
- status != ATH_AGGR_BAW_CLOSED);
+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
+ if (aggr)
+ aggr_len = ath_tx_form_aggr(sc, txq, tid, &bf_q, bf);
+ else
+ ath_tx_form_burst(sc, txq, tid, &bf_q, bf);
+
+ if (list_empty(&bf_q))
+ return -EAGAIN;
+
+ if (tid->clear_ps_filter || tid->an->no_ps_filter) {
+ tid->clear_ps_filter = false;
+ tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+ }
+
+ ath_tx_fill_desc(sc, bf, txq, aggr_len);
+ ath_tx_txqaddbuf(sc, txq, &bf_q, false);
+ return 0;
}
int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
u16 tid, u16 *ssn)
{
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_atx_tid *txtid;
+ struct ath_txq *txq;
struct ath_node *an;
u8 density;
+ ath_dbg(common, XMIT, "%s called\n", __func__);
+
an = (struct ath_node *)sta->drv_priv;
txtid = ATH_AN_2_TID(an, tid);
+ txq = txtid->txq;
+
+ ath_txq_lock(sc, txq);
/* update ampdu factor/density, they may have changed. This may happen
* in HT IBSS when a beacon with HT-info is received after the station
* has already been added.
*/
- if (sta->ht_cap.ht_supported) {
- an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
- sta->ht_cap.ampdu_factor);
- density = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
+ if (sta->deflink.ht_cap.ht_supported) {
+ an->maxampdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+ sta->deflink.ht_cap.ampdu_factor)) - 1;
+ density = ath9k_parse_mpdudensity(sta->deflink.ht_cap.ampdu_density);
an->mpdudensity = density;
}
txtid->active = true;
- txtid->paused = true;
*ssn = txtid->seq_start = txtid->seq_next;
txtid->bar_index = -1;
memset(txtid->tx_buf, 0, sizeof(txtid->tx_buf));
txtid->baw_head = txtid->baw_tail = 0;
+ ath_txq_unlock_complete(sc, txq);
+
return 0;
}
void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
{
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_node *an = (struct ath_node *)sta->drv_priv;
struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
- struct ath_txq *txq = txtid->ac->txq;
+ struct ath_txq *txq = txtid->txq;
+
+ ath_dbg(common, XMIT, "%s called\n", __func__);
ath_txq_lock(sc, txq);
txtid->active = false;
- txtid->paused = true;
ath_tx_flush_tid(sc, txtid);
ath_txq_unlock_complete(sc, txq);
}
@@ -1285,86 +1626,65 @@ void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
struct ath_node *an)
{
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_atx_tid *tid;
- struct ath_atx_ac *ac;
- struct ath_txq *txq;
- bool buffered;
int tidno;
- for (tidno = 0, tid = &an->tid[tidno];
- tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
-
- if (!tid->sched)
- continue;
-
- ac = tid->ac;
- txq = ac->txq;
-
- ath_txq_lock(sc, txq);
-
- buffered = !skb_queue_empty(&tid->buf_q);
+ ath_dbg(common, XMIT, "%s called\n", __func__);
- tid->sched = false;
- list_del(&tid->list);
-
- if (ac->sched) {
- ac->sched = false;
- list_del(&ac->list);
- }
+ for (tidno = 0; tidno < IEEE80211_NUM_TIDS; tidno++) {
+ tid = ath_node_to_tid(an, tidno);
- ath_txq_unlock(sc, txq);
+ if (!skb_queue_empty(&tid->retry_q))
+ ieee80211_sta_set_buffered(sta, tid->tidno, true);
- ieee80211_sta_set_buffered(sta, tidno, buffered);
}
}
void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an)
{
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_atx_tid *tid;
- struct ath_atx_ac *ac;
struct ath_txq *txq;
int tidno;
- for (tidno = 0, tid = &an->tid[tidno];
- tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
+ ath_dbg(common, XMIT, "%s called\n", __func__);
- ac = tid->ac;
- txq = ac->txq;
+ for (tidno = 0; tidno < IEEE80211_NUM_TIDS; tidno++) {
+ tid = ath_node_to_tid(an, tidno);
+ txq = tid->txq;
ath_txq_lock(sc, txq);
- ac->clear_ps_filter = true;
-
- if (!skb_queue_empty(&tid->buf_q) && !tid->paused) {
- ath_tx_queue_tid(txq, tid);
+ tid->clear_ps_filter = true;
+ if (!skb_queue_empty(&tid->retry_q)) {
+ ath_tx_queue_tid(sc, tid);
ath_txq_schedule(sc, txq);
}
-
ath_txq_unlock_complete(sc, txq);
+
}
}
-void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta,
- u16 tidno)
-{
- struct ath_atx_tid *tid;
- struct ath_node *an;
- struct ath_txq *txq;
- an = (struct ath_node *)sta->drv_priv;
- tid = ATH_AN_2_TID(an, tidno);
- txq = tid->ac->txq;
+static void
+ath9k_set_moredata(struct ath_softc *sc, struct ath_buf *bf, bool val)
+{
+ struct ieee80211_hdr *hdr;
+ __le16 mask, mask_val;
- ath_txq_lock(sc, txq);
+ mask = cpu_to_le16(IEEE80211_FCTL_MOREDATA);
- tid->baw_size = IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor;
- tid->paused = false;
+ if (val)
+ mask_val = mask;
+ else
+ mask_val = 0;
- if (!skb_queue_empty(&tid->buf_q)) {
- ath_tx_queue_tid(txq, tid);
- ath_txq_schedule(sc, txq);
+ hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
+ if ((hdr->frame_control & mask) != mask_val) {
+ hdr->frame_control = (hdr->frame_control & ~mask) | mask_val;
+ dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
+ sizeof(*hdr), DMA_TO_DEVICE);
}
-
- ath_txq_unlock_complete(sc, txq);
}
void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
@@ -1378,9 +1698,8 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
struct ath_txq *txq = sc->tx.uapsdq;
struct ieee80211_tx_info *info;
struct list_head bf_q;
- struct ath_buf *bf_tail = NULL, *bf;
- int sent = 0;
- int i;
+ struct ath_buf *bf_tail = NULL, *bf = NULL;
+ int i, ret;
INIT_LIST_HEAD(&bf_q);
for (i = 0; tids && nframes; i++, tids >>= 1) {
@@ -1390,37 +1709,38 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
continue;
tid = ATH_AN_2_TID(an, i);
- if (tid->paused)
- continue;
- ath_txq_lock(sc, tid->ac->txq);
- while (!skb_queue_empty(&tid->buf_q) && nframes > 0) {
- bf = ath_tx_get_tid_subframe(sc, sc->tx.uapsdq, tid);
- if (!bf)
+ ath_txq_lock(sc, tid->txq);
+ while (nframes > 0) {
+ ret = ath_tx_get_tid_subframe(sc, sc->tx.uapsdq,
+ tid, &bf);
+ if (ret < 0)
break;
- __skb_unlink(bf->bf_mpdu, &tid->buf_q);
+ ath9k_set_moredata(sc, bf, true);
list_add_tail(&bf->list, &bf_q);
ath_set_rates(tid->an->vif, tid->an->sta, bf);
- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
- bf->bf_state.bf_type &= ~BUF_AGGR;
+ if (bf_isampdu(bf))
+ bf->bf_state.bf_type &= ~BUF_AGGR;
if (bf_tail)
bf_tail->bf_next = bf;
bf_tail = bf;
nframes--;
- sent++;
- TX_STAT_INC(txq->axq_qnum, a_queued_hw);
+ TX_STAT_INC(sc, txq->axq_qnum, a_queued_hw);
- if (skb_queue_empty(&tid->buf_q))
+ if (an->sta && skb_queue_empty(&tid->retry_q))
ieee80211_sta_set_buffered(an->sta, i, false);
}
- ath_txq_unlock_complete(sc, tid->ac->txq);
+ ath_txq_unlock_complete(sc, tid->txq);
}
if (list_empty(&bf_q))
return;
+ if (!more_data)
+ ath9k_set_moredata(sc, bf_tail, false);
+
info = IEEE80211_SKB_CB(bf_tail->bf_mpdu);
info->flags |= IEEE80211_TX_STATUS_EOSP;
@@ -1494,7 +1814,6 @@ struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype)
txq->axq_link = NULL;
__skb_queue_head_init(&txq->complete_q);
INIT_LIST_HEAD(&txq->axq_q);
- INIT_LIST_HEAD(&txq->axq_acq);
spin_lock_init(&txq->axq_lock);
txq->axq_depth = 0;
txq->axq_ampdu_depth = 0;
@@ -1538,20 +1857,13 @@ int ath_txq_update(struct ath_softc *sc, int qnum,
int ath_cabq_update(struct ath_softc *sc)
{
struct ath9k_tx_queue_info qi;
- struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
+ struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
int qnum = sc->beacon.cabq->axq_qnum;
ath9k_hw_get_txq_props(sc->sc_ah, qnum, &qi);
- /*
- * Ensure the readytime % is within the bounds.
- */
- if (sc->config.cabqReadytime < ATH9K_READY_TIME_LO_BOUND)
- sc->config.cabqReadytime = ATH9K_READY_TIME_LO_BOUND;
- else if (sc->config.cabqReadytime > ATH9K_READY_TIME_HI_BOUND)
- sc->config.cabqReadytime = ATH9K_READY_TIME_HI_BOUND;
- qi.tqi_readyTime = (cur_conf->beacon_interval *
- sc->config.cabqReadytime) / 100;
+ qi.tqi_readyTime = (TU_TO_USEC(cur_conf->beacon_interval) *
+ ATH_CABQ_READY_TIME) / 100;
ath_txq_update(sc, qnum, &qi);
return 0;
@@ -1571,7 +1883,7 @@ static void ath_drain_txq_list(struct ath_softc *sc, struct ath_txq *txq,
while (!list_empty(list)) {
bf = list_first_entry(list, struct ath_buf, list);
- if (bf->bf_stale) {
+ if (bf->bf_state.stale) {
list_del(&bf->list);
ath_tx_return_buffer(sc, bf);
@@ -1592,6 +1904,7 @@ static void ath_drain_txq_list(struct ath_softc *sc, struct ath_txq *txq,
*/
void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq)
{
+ rcu_read_lock();
ath_txq_lock(sc, txq);
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
@@ -1610,6 +1923,7 @@ void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq)
ath_drain_txq_list(sc, txq, &txq->axq_q);
ath_txq_unlock_complete(sc, txq);
+ rcu_read_unlock();
}
bool ath_drain_all_txq(struct ath_softc *sc)
@@ -1620,7 +1934,7 @@ bool ath_drain_all_txq(struct ath_softc *sc)
int i;
u32 npend = 0;
- if (test_bit(SC_OP_INVALID, &sc->sc_flags))
+ if (test_bit(ATH_OP_INVALID, &common->op_flags))
return true;
ath9k_hw_abort_tx_dma(ah);
@@ -1630,24 +1944,24 @@ bool ath_drain_all_txq(struct ath_softc *sc)
if (!ATH_TXQ_SETUP(sc, i))
continue;
+ if (!sc->tx.txq[i].axq_depth)
+ continue;
+
if (ath9k_hw_numtxpending(ah, sc->tx.txq[i].axq_qnum))
npend |= BIT(i);
}
- if (npend)
- ath_err(common, "Failed to stop TX DMA, queues=0x%03x!\n", npend);
+ if (npend) {
+ RESET_STAT_INC(sc, RESET_TX_DMA_ERROR);
+ ath_dbg(common, RESET,
+ "Failed to stop TX DMA, queues=0x%03x!\n", npend);
+ }
for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
if (!ATH_TXQ_SETUP(sc, i))
continue;
- /*
- * The caller will resume queues with ieee80211_wake_queues.
- * Mark the queue as not stopped to prevent ath_tx_complete
- * from waking the queue too early.
- */
txq = &sc->tx.txq[i];
- txq->stopped = false;
ath_draintxq(sc, txq);
}
@@ -1660,63 +1974,60 @@ void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq)
sc->tx.txqsetup &= ~(1<<txq->axq_qnum);
}
-/* For each axq_acq entry, for each tid, try to schedule packets
+/* For each acq entry, for each tid, try to schedule packets
* for transmit until ampdu_depth has reached min Q depth.
*/
void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq)
{
- struct ath_atx_ac *ac, *ac_tmp, *last_ac;
- struct ath_atx_tid *tid, *last_tid;
+ struct ieee80211_hw *hw = sc->hw;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ieee80211_txq *queue;
+ struct ath_atx_tid *tid;
+ int ret;
+
+ if (txq->mac80211_qnum < 0)
+ return;
- if (test_bit(SC_OP_HW_RESET, &sc->sc_flags) ||
- list_empty(&txq->axq_acq) ||
- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
+ if (test_bit(ATH_OP_HW_RESET, &common->op_flags))
return;
+ ieee80211_txq_schedule_start(hw, txq->mac80211_qnum);
+ spin_lock_bh(&sc->chan_lock);
rcu_read_lock();
- ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, list);
- last_ac = list_entry(txq->axq_acq.prev, struct ath_atx_ac, list);
+ if (sc->cur_chan->stopped)
+ goto out;
- list_for_each_entry_safe(ac, ac_tmp, &txq->axq_acq, list) {
- last_tid = list_entry(ac->tid_q.prev, struct ath_atx_tid, list);
- list_del(&ac->list);
- ac->sched = false;
+ while ((queue = ieee80211_next_txq(hw, txq->mac80211_qnum))) {
+ bool force;
- while (!list_empty(&ac->tid_q)) {
- tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
- list);
- list_del(&tid->list);
- tid->sched = false;
+ tid = (struct ath_atx_tid *)queue->drv_priv;
- if (tid->paused)
- continue;
+ ret = ath_tx_sched_aggr(sc, txq, tid);
+ ath_dbg(common, QUEUE, "ath_tx_sched_aggr returned %d\n", ret);
- ath_tx_sched_aggr(sc, txq, tid);
+ force = !skb_queue_empty(&tid->retry_q);
+ ieee80211_return_txq(hw, queue, force);
+ }
- /*
- * add tid to round-robin queue if more frames
- * are pending for the tid
- */
- if (!skb_queue_empty(&tid->buf_q))
- ath_tx_queue_tid(txq, tid);
+out:
+ rcu_read_unlock();
+ spin_unlock_bh(&sc->chan_lock);
+ ieee80211_txq_schedule_end(hw, txq->mac80211_qnum);
+}
- if (tid == last_tid ||
- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
- break;
- }
+void ath_txq_schedule_all(struct ath_softc *sc)
+{
+ struct ath_txq *txq;
+ int i;
- if (!list_empty(&ac->tid_q) && !ac->sched) {
- ac->sched = true;
- list_add_tail(&ac->list, &txq->axq_acq);
- }
+ for (i = 0; i < IEEE80211_NUM_ACS; i++) {
+ txq = sc->tx.txq_map[i];
- if (ac == last_ac ||
- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
- break;
+ spin_lock_bh(&txq->axq_lock);
+ ath_txq_schedule(sc, txq);
+ spin_unlock_bh(&txq->axq_lock);
}
-
- rcu_read_unlock();
}
/***********/
@@ -1770,14 +2081,14 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
}
if (puttxbuf) {
- TX_STAT_INC(txq->axq_qnum, puttxbuf);
+ TX_STAT_INC(sc, txq->axq_qnum, puttxbuf);
ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
ath_dbg(common, XMIT, "TXDP[%u] = %llx (%p)\n",
txq->axq_qnum, ito64(bf->bf_daddr), bf->bf_desc);
}
- if (!edma) {
- TX_STAT_INC(txq->axq_qnum, txstart);
+ if (!edma || sc->tx99_state) {
+ TX_STAT_INC(sc, txq->axq_qnum, txstart);
ath9k_hw_txstart(ah, txq->axq_qnum);
}
@@ -1787,80 +2098,34 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
if (bf_is_ampdu_not_probing(bf))
txq->axq_ampdu_depth++;
- bf = bf->bf_lastbf->bf_next;
+ bf_last = bf->bf_lastbf;
+ bf = bf_last->bf_next;
+ bf_last->bf_next = NULL;
}
}
}
-static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_txq *txq,
- struct ath_atx_tid *tid, struct sk_buff *skb,
- struct ath_tx_control *txctl)
-{
- struct ath_frame_info *fi = get_frame_info(skb);
- struct list_head bf_head;
- struct ath_buf *bf;
-
- /*
- * Do not queue to h/w when any of the following conditions is true:
- * - there are pending frames in software queue
- * - the TID is currently paused for ADDBA/BAR request
- * - seqno is not within block-ack window
- * - h/w queue depth exceeds low water mark
- */
- if ((!skb_queue_empty(&tid->buf_q) || tid->paused ||
- !BAW_WITHIN(tid->seq_start, tid->baw_size, tid->seq_next) ||
- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) &&
- txq != sc->tx.uapsdq) {
- /*
- * Add this frame to software queue for scheduling later
- * for aggregation.
- */
- TX_STAT_INC(txq->axq_qnum, a_queued_sw);
- __skb_queue_tail(&tid->buf_q, skb);
- if (!txctl->an || !txctl->an->sleeping)
- ath_tx_queue_tid(txq, tid);
- return;
- }
-
- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
- if (!bf) {
- ieee80211_free_txskb(sc->hw, skb);
- return;
- }
-
- ath_set_rates(tid->an->vif, tid->an->sta, bf);
- bf->bf_state.bf_type = BUF_AMPDU;
- INIT_LIST_HEAD(&bf_head);
- list_add(&bf->list, &bf_head);
-
- /* Add sub-frame to BAW */
- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
-
- /* Queue to h/w without aggregation */
- TX_STAT_INC(txq->axq_qnum, a_queued_hw);
- bf->bf_lastbf = bf;
- ath_tx_fill_desc(sc, bf, txq, fi->framelen);
- ath_tx_txqaddbuf(sc, txq, &bf_head, false);
-}
-
static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
struct ath_atx_tid *tid, struct sk_buff *skb)
{
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ath_frame_info *fi = get_frame_info(skb);
struct list_head bf_head;
- struct ath_buf *bf;
-
- bf = fi->bf;
+ struct ath_buf *bf = fi->bf;
INIT_LIST_HEAD(&bf_head);
list_add_tail(&bf->list, &bf_head);
bf->bf_state.bf_type = 0;
+ if (tid && (tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
+ bf->bf_state.bf_type = BUF_AMPDU;
+ ath_tx_addto_baw(tid, bf);
+ }
bf->bf_next = NULL;
bf->bf_lastbf = bf;
ath_tx_fill_desc(sc, bf, txq, fi->framelen);
ath_tx_txqaddbuf(sc, txq, &bf_head, false);
- TX_STAT_INC(txq->axq_qnum, queued);
+ TX_STAT_INC(sc, txq->axq_qnum, queued);
}
static void setup_frame_info(struct ieee80211_hw *hw,
@@ -1876,6 +2141,7 @@ static void setup_frame_info(struct ieee80211_hw *hw,
struct ath_node *an = NULL;
enum ath9k_key_type keytype;
bool short_preamble = false;
+ u8 txpower;
/*
* We check if Short Preamble is needed for the CTS rate by
@@ -1892,15 +2158,34 @@ static void setup_frame_info(struct ieee80211_hw *hw,
if (sta)
an = (struct ath_node *) sta->drv_priv;
+ if (tx_info->control.vif) {
+ struct ieee80211_vif *vif = tx_info->control.vif;
+ if (vif->bss_conf.txpower == INT_MIN)
+ goto nonvifpower;
+ txpower = 2 * vif->bss_conf.txpower;
+ } else {
+ struct ath_softc *sc;
+ nonvifpower:
+ sc = hw->priv;
+
+ txpower = sc->cur_chan->cur_txpower;
+ }
+
memset(fi, 0, sizeof(*fi));
+ fi->txq = -1;
if (hw_key)
fi->keyix = hw_key->hw_key_idx;
else if (an && ieee80211_is_data(hdr->frame_control) && an->ps_key > 0)
fi->keyix = an->ps_key;
else
fi->keyix = ATH9K_TXKEYIX_INVALID;
+ fi->dyn_smps = sta && sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC;
fi->keytype = keytype;
fi->framelen = framelen;
+ fi->tx_power = txpower;
+
+ if (!rate)
+ return;
fi->rtscts_rate = rate->hw_value;
if (short_preamble)
fi->rtscts_rate |= rate->hw_value_short;
@@ -1911,8 +2196,7 @@ u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate)
struct ath_hw *ah = sc->sc_ah;
struct ath9k_channel *curchan = ah->curchan;
- if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) &&
- (curchan->channelFlags & CHANNEL_5GHZ) &&
+ if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && IS_CHAN_5GHZ(curchan) &&
(chainmask == 0x7) && (rate < 0x90))
return 0x3;
else if (AR_SREV_9462(ah) && ath9k_hw_btcoex_is_enabled(ah) &&
@@ -1946,7 +2230,7 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
ATH_TXBUF_RESET(bf);
- if (tid) {
+ if (tid && ieee80211_is_data_present(hdr->frame_control)) {
fragno = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
seqno = tid->seq_next;
hdr->seq_ctrl = cpu_to_le16(tid->seq_next << IEEE80211_SEQ_SEQ_SHIFT);
@@ -1978,6 +2262,28 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
return bf;
}
+void ath_assign_seq(struct ath_common *common, struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_vif *vif = info->control.vif;
+ struct ath_vif *avp;
+
+ if (!(info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ))
+ return;
+
+ if (!vif)
+ return;
+
+ avp = (struct ath_vif *)vif->drv_priv;
+
+ if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+ avp->seq_no += 0x10;
+
+ hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+ hdr->seq_ctrl |= cpu_to_le16(avp->seq_no);
+}
+
static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb,
struct ath_tx_control *txctl)
{
@@ -1989,24 +2295,10 @@ static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb,
int frmlen = skb->len + FCS_LEN;
int padpos, padsize;
- /* NOTE: sta can be NULL according to net/mac80211.h */
- if (sta)
- txctl->an = (struct ath_node *)sta->drv_priv;
-
if (info->control.hw_key)
frmlen += info->control.hw_key->icv_len;
- /*
- * 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);
- }
+ ath_assign_seq(ath9k_hw_common(sc->sc_ah), skb);
if ((vif && vif->type != NL80211_IFTYPE_AP &&
vif->type != NL80211_IFTYPE_AP_VLAN) ||
@@ -2033,23 +2325,24 @@ static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb,
int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
struct ath_tx_control *txctl)
{
- struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_sta *sta = txctl->sta;
struct ieee80211_vif *vif = info->control.vif;
+ struct ath_frame_info *fi = get_frame_info(skb);
struct ath_softc *sc = hw->priv;
struct ath_txq *txq = txctl->txq;
struct ath_atx_tid *tid = NULL;
+ struct ath_node *an = NULL;
struct ath_buf *bf;
- u8 tidno;
- int q;
- int ret;
+ bool ps_resp;
+ int q, ret;
+
+ ps_resp = !!(info->control.flags & IEEE80211_TX_CTRL_PS_RESPONSE);
ret = ath_tx_prepare(hw, skb, txctl);
if (ret)
return ret;
- hdr = (struct ieee80211_hdr *) skb->data;
/*
* At this point, the vif, hw_key and sta pointers in the tx control
* info are no longer valid (overwritten by the ath_frame_info data.
@@ -2057,39 +2350,23 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
q = skb_get_queue_mapping(skb);
- ath_txq_lock(sc, txq);
- if (txq == sc->tx.txq_map[q] &&
- ++txq->pending_frames > sc->tx.txq_max_pending[q] &&
- !txq->stopped) {
- ieee80211_stop_queue(sc->hw, q);
- txq->stopped = true;
- }
-
- if (info->flags & IEEE80211_TX_CTL_PS_RESPONSE) {
- ath_txq_unlock(sc, txq);
+ if (ps_resp)
txq = sc->tx.uapsdq;
- ath_txq_lock(sc, txq);
- }
- if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
- tidno = ieee80211_get_qos_ctl(hdr)[0] &
- IEEE80211_QOS_CTL_TID_MASK;
- tid = ATH_AN_2_TID(txctl->an, tidno);
-
- WARN_ON(tid->ac->txq != txctl->txq);
+ if (txctl->sta) {
+ an = (struct ath_node *) sta->drv_priv;
+ tid = ath_get_skb_tid(an, skb);
}
- if ((info->flags & IEEE80211_TX_CTL_AMPDU) && tid) {
- /*
- * Try aggregation if it's a unicast data frame
- * and the destination is HT capable.
- */
- ath_tx_send_ampdu(sc, txq, tid, skb, txctl);
- goto out;
+ ath_txq_lock(sc, txq);
+ if (txq == sc->tx.txq_map[q]) {
+ fi->txq = q;
+ ++txq->pending_frames;
}
bf = ath_tx_setup_buffer(sc, txq, tid, skb);
if (!bf) {
+ ath_txq_skb_done(sc, skb);
if (txctl->paprd)
dev_kfree_skb_any(skb);
else
@@ -2119,7 +2396,6 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
.txq = sc->beacon.cabq
};
struct ath_tx_info info = {};
- struct ieee80211_hdr *hdr;
struct ath_buf *bf_tail = NULL;
struct ath_buf *bf;
LIST_HEAD(bf_q);
@@ -2127,8 +2403,8 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
int max_duration;
max_duration =
- sc->cur_beacon_conf.beacon_interval * 1000 *
- sc->cur_beacon_conf.dtim_period / ATH_BCBUF;
+ sc->cur_chan->beacon.beacon_interval * 1000 *
+ sc->cur_chan->beacon.dtim_period / ATH_BCBUF;
do {
struct ath_frame_info *fi = get_frame_info(skb);
@@ -2142,7 +2418,7 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
bf->bf_lastbf = bf;
ath_set_rates(vif, NULL, bf);
- ath_buf_set_rate(sc, bf, &info, fi->framelen);
+ ath_buf_set_rate(sc, bf, &info, fi->framelen, false);
duration += info.rates[0].PktDuration;
if (bf_tail)
bf_tail->bf_next = bf;
@@ -2163,19 +2439,14 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
if (list_empty(&bf_q))
return;
- bf = list_first_entry(&bf_q, struct ath_buf, list);
- hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
-
- if (hdr->frame_control & IEEE80211_FCTL_MOREDATA) {
- hdr->frame_control &= ~IEEE80211_FCTL_MOREDATA;
- dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
- sizeof(*hdr), DMA_TO_DEVICE);
- }
+ bf = list_last_entry(&bf_q, struct ath_buf, list);
+ ath9k_set_moredata(sc, bf, false);
+ bf = list_first_entry(&bf_q, struct ath_buf, list);
ath_txq_lock(sc, txctl.txq);
ath_tx_fill_desc(sc, bf, txctl.txq, 0);
ath_tx_txqaddbuf(sc, txctl.txq, &bf_q, false);
- TX_STAT_INC(txctl.txq->axq_qnum, queued);
+ TX_STAT_INC(sc, txctl.txq->axq_qnum, queued);
ath_txq_unlock(sc, txctl.txq);
}
@@ -2184,32 +2455,38 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
/*****************/
static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
- int tx_flags, struct ath_txq *txq)
+ int tx_flags, struct ath_txq *txq,
+ struct ieee80211_sta *sta)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_hdr * hdr = (struct ieee80211_hdr *)skb->data;
- int q, padpos, padsize;
+ int padpos, padsize;
unsigned long flags;
ath_dbg(common, XMIT, "TX complete: skb: %p\n", skb);
if (sc->sc_ah->caldata)
- sc->sc_ah->caldata->paprd_packet_sent = true;
+ set_bit(PAPRD_PACKET_SENT, &sc->sc_ah->caldata->cal_flags);
- if (!(tx_flags & ATH_TX_ERROR))
- /* Frame was ACKed */
- tx_info->flags |= IEEE80211_TX_STAT_ACK;
+ if (!(tx_flags & ATH_TX_ERROR)) {
+ if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
+ tx_info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
+ else
+ tx_info->flags |= IEEE80211_TX_STAT_ACK;
+ }
- padpos = ieee80211_hdrlen(hdr->frame_control);
- padsize = padpos & 3;
- if (padsize && skb->len>padpos+padsize) {
- /*
- * Remove MAC header padding before giving the frame back to
- * mac80211.
- */
- memmove(skb->data + padsize, skb->data, padpos);
- skb_pull(skb, padsize);
+ if (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
+ padpos = ieee80211_hdrlen(hdr->frame_control);
+ padsize = padpos & 3;
+ if (padsize && skb->len>padpos+padsize) {
+ /*
+ * Remove MAC header padding before giving the frame back to
+ * mac80211.
+ */
+ memmove(skb->data + padsize, skb->data, padpos);
+ skb_pull(skb, padsize);
+ }
}
spin_lock_irqsave(&sc->sc_pm_lock, flags);
@@ -2224,26 +2501,14 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
}
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
+ ath_txq_skb_done(sc, skb);
+ tx_info->status.status_driver_data[0] = sta;
__skb_queue_tail(&txq->complete_q, skb);
-
- q = skb_get_queue_mapping(skb);
- if (txq == sc->tx.uapsdq)
- txq = sc->tx.txq_map[q];
-
- if (txq == sc->tx.txq_map[q]) {
- if (WARN_ON(--txq->pending_frames < 0))
- txq->pending_frames = 0;
-
- if (txq->stopped &&
- txq->pending_frames < sc->tx.txq_max_pending[q]) {
- ieee80211_wake_queue(sc->hw, q);
- txq->stopped = false;
- }
- }
}
static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
struct ath_txq *txq, struct list_head *bf_q,
+ struct ieee80211_sta *sta,
struct ath_tx_status *ts, int txok)
{
struct sk_buff *skb = bf->bf_mpdu;
@@ -2259,6 +2524,8 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
dma_unmap_single(sc->dev, bf->bf_buf_addr, skb->len, DMA_TO_DEVICE);
bf->bf_buf_addr = 0;
+ if (sc->tx99_state)
+ goto skip_tx_complete;
if (bf->bf_state.bfs_paprd) {
if (time_after(jiffies,
@@ -2269,8 +2536,9 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
complete(&sc->paprd_complete);
} else {
ath_debug_stat_tx(sc, bf, ts, txq, tx_flags);
- ath_tx_complete(sc, skb, tx_flags, txq);
+ ath_tx_complete(sc, skb, tx_flags, txq, sta);
}
+skip_tx_complete:
/* At this point, skb (bf->bf_mpdu) is consumed...make sure we don't
* accidentally reference it later.
*/
@@ -2284,6 +2552,16 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
spin_unlock_irqrestore(&sc->tx.txbuflock, flags);
}
+static void ath_clear_tx_status(struct ieee80211_tx_info *tx_info)
+{
+ void *ptr = &tx_info->status;
+
+ memset(ptr + sizeof(tx_info->status.rates), 0,
+ sizeof(tx_info->status) -
+ sizeof(tx_info->status.rates) -
+ sizeof(tx_info->status.status_driver_data));
+}
+
static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
struct ath_tx_status *ts, int nframes, int nbad,
int txok)
@@ -2295,6 +2573,8 @@ static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
struct ath_hw *ah = sc->sc_ah;
u8 i, tx_rateindex;
+ ath_clear_tx_status(tx_info);
+
if (txok)
tx_info->status.ack_signal = ts->ts_rssi;
@@ -2309,6 +2589,13 @@ static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
tx_info->status.ampdu_len = nframes;
tx_info->status.ampdu_ack_len = nframes - nbad;
+ tx_info->status.rates[tx_rateindex].count = ts->ts_longretry + 1;
+
+ for (i = tx_rateindex + 1; i < hw->max_rates; i++) {
+ tx_info->status.rates[i].count = 0;
+ tx_info->status.rates[i].idx = -1;
+ }
+
if ((ts->ts_status & ATH9K_TXERR_FILT) == 0 &&
(tx_info->flags & IEEE80211_TX_CTL_NO_ACK) == 0) {
/*
@@ -2330,13 +2617,6 @@ static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
tx_info->status.rates[tx_rateindex].count =
hw->max_rate_tries;
}
-
- for (i = tx_rateindex + 1; i < hw->max_rates; i++) {
- tx_info->status.rates[i].count = 0;
- tx_info->status.rates[i].idx = -1;
- }
-
- tx_info->status.rates[tx_rateindex].count = ts->ts_longretry + 1;
}
static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
@@ -2355,13 +2635,12 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
ath_txq_lock(sc, txq);
for (;;) {
- if (test_bit(SC_OP_HW_RESET, &sc->sc_flags))
+ if (test_bit(ATH_OP_HW_RESET, &common->op_flags))
break;
if (list_empty(&txq->axq_q)) {
txq->axq_link = NULL;
- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
- ath_txq_schedule(sc, txq);
+ ath_txq_schedule(sc, txq);
break;
}
bf = list_first_entry(&txq->axq_q, struct ath_buf, list);
@@ -2375,7 +2654,7 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
* it with the STALE flag.
*/
bf_held = NULL;
- if (bf->bf_stale) {
+ if (bf->bf_state.stale) {
bf_held = bf;
if (list_is_last(&bf_held->list, &txq->axq_q))
break;
@@ -2392,14 +2671,14 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
if (status == -EINPROGRESS)
break;
- TX_STAT_INC(txq->axq_qnum, txprocdesc);
+ TX_STAT_INC(sc, txq->axq_qnum, txprocdesc);
/*
* Remove ath_buf's of the same transmit unit from txq,
* however leave the last descriptor back as the holding
* descriptor for hw.
*/
- lastbf->bf_stale = true;
+ lastbf->bf_state.stale = true;
INIT_LIST_HEAD(&bf_head);
if (!list_is_singular(&lastbf->list))
list_cut_position(&bf_head,
@@ -2421,10 +2700,12 @@ void ath_tx_tasklet(struct ath_softc *sc)
u32 qcumask = ((1 << ATH9K_NUM_TX_QUEUES) - 1) & ah->intr_txqs;
int i;
+ rcu_read_lock();
for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
if (ATH_TXQ_SETUP(sc, i) && (qcumask & (1 << i)))
ath_tx_processq(sc, &sc->tx.txq[i]);
}
+ rcu_read_unlock();
}
void ath_tx_edma_tasklet(struct ath_softc *sc)
@@ -2438,8 +2719,9 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
struct list_head *fifo_list;
int status;
+ rcu_read_lock();
for (;;) {
- if (test_bit(SC_OP_HW_RESET, &sc->sc_flags))
+ if (test_bit(ATH_OP_HW_RESET, &common->op_flags))
break;
status = ath9k_hw_txprocdesc(ah, NULL, (void *)&ts);
@@ -2454,6 +2736,13 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
if (ts.qid == sc->beacon.beaconq) {
sc->beacon.tx_processed = true;
sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
+
+ if (ath9k_is_chanctx_enabled()) {
+ ath_chanctx_event(sc, NULL,
+ ATH_CHANCTX_EVENT_BEACON_SENT);
+ }
+
+ ath9k_csa_update(sc);
continue;
}
@@ -2461,16 +2750,16 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
ath_txq_lock(sc, txq);
- TX_STAT_INC(txq->axq_qnum, txprocdesc);
+ TX_STAT_INC(sc, txq->axq_qnum, txprocdesc);
fifo_list = &txq->txq_fifo[txq->txq_tailidx];
if (list_empty(fifo_list)) {
ath_txq_unlock(sc, txq);
- return;
+ break;
}
bf = list_first_entry(fifo_list, struct ath_buf, list);
- if (bf->bf_stale) {
+ if (bf->bf_state.stale) {
list_del(&bf->list);
ath_tx_return_buffer(sc, bf);
bf = list_first_entry(fifo_list, struct ath_buf, list);
@@ -2492,7 +2781,7 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
ath_tx_txqaddbuf(sc, txq, &bf_q, true);
}
} else {
- lastbf->bf_stale = true;
+ lastbf->bf_state.stale = true;
if (bf != lastbf)
list_cut_position(&bf_head, fifo_list,
lastbf->list.prev);
@@ -2501,6 +2790,7 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
ath_txq_unlock_complete(sc, txq);
}
+ rcu_read_unlock();
}
/*****************/
@@ -2557,8 +2847,6 @@ int ath_tx_init(struct ath_softc *sc, int nbufs)
return error;
}
- INIT_DELAYED_WORK(&sc->tx_complete_work, ath_tx_complete_poll_work);
-
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
error = ath_tx_edma_init(sc);
@@ -2568,61 +2856,99 @@ int ath_tx_init(struct ath_softc *sc, int nbufs)
void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an)
{
struct ath_atx_tid *tid;
- struct ath_atx_ac *ac;
int tidno, acno;
- for (tidno = 0, tid = &an->tid[tidno];
- tidno < IEEE80211_NUM_TIDS;
- tidno++, tid++) {
+ for (tidno = 0; tidno < IEEE80211_NUM_TIDS; tidno++) {
+ tid = ath_node_to_tid(an, tidno);
tid->an = an;
tid->tidno = tidno;
tid->seq_start = tid->seq_next = 0;
tid->baw_size = WME_MAX_BA;
tid->baw_head = tid->baw_tail = 0;
- tid->sched = false;
- tid->paused = false;
tid->active = false;
- __skb_queue_head_init(&tid->buf_q);
+ tid->clear_ps_filter = true;
+ __skb_queue_head_init(&tid->retry_q);
+ INIT_LIST_HEAD(&tid->list);
acno = TID_TO_WME_AC(tidno);
- tid->ac = &an->ac[acno];
- }
+ tid->txq = sc->tx.txq_map[acno];
- for (acno = 0, ac = &an->ac[acno];
- acno < IEEE80211_NUM_ACS; acno++, ac++) {
- ac->sched = false;
- ac->txq = sc->tx.txq_map[acno];
- INIT_LIST_HEAD(&ac->tid_q);
+ if (!an->sta)
+ break; /* just one multicast ath_atx_tid */
}
}
void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an)
{
- struct ath_atx_ac *ac;
struct ath_atx_tid *tid;
struct ath_txq *txq;
int tidno;
- for (tidno = 0, tid = &an->tid[tidno];
- tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
+ rcu_read_lock();
- ac = tid->ac;
- txq = ac->txq;
+ for (tidno = 0; tidno < IEEE80211_NUM_TIDS; tidno++) {
+ tid = ath_node_to_tid(an, tidno);
+ txq = tid->txq;
ath_txq_lock(sc, txq);
- if (tid->sched) {
- list_del(&tid->list);
- tid->sched = false;
- }
-
- if (ac->sched) {
- list_del(&ac->list);
- tid->ac->sched = false;
- }
+ if (!list_empty(&tid->list))
+ list_del_init(&tid->list);
ath_tid_drain(sc, txq, tid);
tid->active = false;
ath_txq_unlock(sc, txq);
+
+ if (!an->sta)
+ break; /* just one multicast ath_atx_tid */
}
+
+ rcu_read_unlock();
}
+
+#ifdef CONFIG_ATH9K_TX99
+
+int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
+ struct ath_tx_control *txctl)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ath_frame_info *fi = get_frame_info(skb);
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ath_buf *bf;
+ int padpos, padsize;
+
+ padpos = ieee80211_hdrlen(hdr->frame_control);
+ padsize = padpos & 3;
+
+ if (padsize && skb->len > padpos) {
+ if (skb_headroom(skb) < padsize) {
+ ath_dbg(common, XMIT,
+ "tx99 padding failed\n");
+ return -EINVAL;
+ }
+
+ skb_push(skb, padsize);
+ memmove(skb->data, skb->data + padsize, padpos);
+ }
+
+ fi->keyix = ATH9K_TXKEYIX_INVALID;
+ fi->framelen = skb->len + FCS_LEN;
+ fi->keytype = ATH9K_KEY_TYPE_CLEAR;
+
+ bf = ath_tx_setup_buffer(sc, txctl->txq, NULL, skb);
+ if (!bf) {
+ ath_dbg(common, XMIT, "tx99 buffer setup failed\n");
+ return -EINVAL;
+ }
+
+ ath_set_rates(sc->tx99_vif, NULL, bf);
+
+ ath9k_hw_set_desc_link(sc->sc_ah, bf->bf_desc, bf->bf_daddr);
+ ath9k_hw_tx99_start(sc->sc_ah, txctl->txq->axq_qnum);
+
+ ath_tx_send_normal(sc, txctl->txq, NULL, skb);
+
+ return 0;
+}
+
+#endif /* CONFIG_ATH9K_TX99 */
generated by cgit (git 2.34.1) at 2025-12-25 10:59:55 +0000