---- a/drivers/net/wireless/ath/ath9k/hw.h
-+++ b/drivers/net/wireless/ath/ath9k/hw.h
-@@ -603,7 +603,6 @@ struct ath_hw_ops {
- int power_off);
- void (*rx_enable)(struct ath_hw *ah);
- void (*set_desc_link)(void *ds, u32 link);
-- void (*get_desc_link)(void *ds, u32 **link);
- bool (*calibrate)(struct ath_hw *ah,
- struct ath9k_channel *chan,
- u8 rxchainmask,
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -62,8 +62,6 @@ static bool ath9k_has_pending_frames(str
-
- if (txq->axq_depth || !list_empty(&txq->axq_acq))
- pending = true;
-- else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
-- pending = !list_empty(&txq->txq_fifo_pending);
-
- spin_unlock_bh(&txq->axq_lock);
- return pending;
---- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
-@@ -28,11 +28,6 @@ static void ar9002_hw_set_desc_link(void
- ((struct ath_desc*) ds)->ds_link = ds_link;
- }
-
--static void ar9002_hw_get_desc_link(void *ds, u32 **ds_link)
--{
-- *ds_link = &((struct ath_desc *)ds)->ds_link;
--}
--
- static bool ar9002_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
- {
- u32 isr = 0;
-@@ -437,7 +432,6 @@ void ar9002_hw_attach_mac_ops(struct ath
-
- ops->rx_enable = ar9002_hw_rx_enable;
- ops->set_desc_link = ar9002_hw_set_desc_link;
-- ops->get_desc_link = ar9002_hw_get_desc_link;
- ops->get_isr = ar9002_hw_get_isr;
- ops->fill_txdesc = ar9002_hw_fill_txdesc;
- ops->proc_txdesc = ar9002_hw_proc_txdesc;
---- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-@@ -43,13 +43,6 @@ static void ar9003_hw_set_desc_link(void
- ads->ctl10 |= ar9003_calc_ptr_chksum(ads);
- }
-
--static void ar9003_hw_get_desc_link(void *ds, u32 **ds_link)
--{
-- struct ar9003_txc *ads = ds;
--
-- *ds_link = &ads->link;
--}
--
- static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
- {
- u32 isr = 0;
-@@ -498,7 +491,6 @@ void ar9003_hw_attach_mac_ops(struct ath
-
- ops->rx_enable = ar9003_hw_rx_enable;
- ops->set_desc_link = ar9003_hw_set_desc_link;
-- ops->get_desc_link = ar9003_hw_get_desc_link;
- ops->get_isr = ar9003_hw_get_isr;
- ops->fill_txdesc = ar9003_hw_fill_txdesc;
- ops->proc_txdesc = ar9003_hw_proc_txdesc;
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -179,7 +179,7 @@ enum ATH_AGGR_STATUS {
- struct ath_txq {
- int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
- u32 axq_qnum; /* ath9k hardware queue number */
-- u32 *axq_link;
-+ void *axq_link;
- struct list_head axq_q;
- spinlock_t axq_lock;
- u32 axq_depth;
-@@ -188,7 +188,6 @@ struct ath_txq {
- bool axq_tx_inprogress;
- struct list_head axq_acq;
- struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
-- struct list_head txq_fifo_pending;
- u8 txq_headidx;
- u8 txq_tailidx;
- int pending_frames;
---- a/drivers/net/wireless/ath/ath9k/debug.c
-+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -550,6 +550,7 @@ static ssize_t read_file_xmit(struct fil
-
- PR("MPDUs Queued: ", queued);
- PR("MPDUs Completed: ", completed);
-+ PR("MPDUs XRetried: ", xretries);
- PR("Aggregates: ", a_aggr);
- PR("AMPDUs Queued HW:", a_queued_hw);
- PR("AMPDUs Queued SW:", a_queued_sw);
-@@ -587,7 +588,6 @@ static ssize_t read_file_xmit(struct fil
-
- PRQLE("axq_q empty: ", axq_q);
- PRQLE("axq_acq empty: ", axq_acq);
-- PRQLE("txq_fifo_pending: ", txq_fifo_pending);
- for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
- snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
- PRQLE(tmp, txq_fifo[i]);
-@@ -807,7 +807,10 @@ void ath_debug_stat_tx(struct ath_softc
- else
- TX_STAT_INC(qnum, a_completed);
- } else {
-- TX_STAT_INC(qnum, completed);
-+ if (bf_isxretried(bf))
-+ TX_STAT_INC(qnum, xretries);
-+ else
-+ TX_STAT_INC(qnum, completed);
- }
-
- if (ts->ts_status & ATH9K_TXERR_FIFO)
---- a/drivers/net/wireless/ath/ath9k/hw-ops.h
-+++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
-@@ -39,11 +39,6 @@ static inline void ath9k_hw_set_desc_lin
- ath9k_hw_ops(ah)->set_desc_link(ds, link);
- }
-
--static inline void ath9k_hw_get_desc_link(struct ath_hw *ah, void *ds,
-- u32 **link)
--{
-- ath9k_hw_ops(ah)->get_desc_link(ds, link);
--}
- static inline bool ath9k_hw_calibrate(struct ath_hw *ah,
- struct ath9k_channel *chan,
- u8 rxchainmask,
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -53,7 +53,7 @@ static void ath_tx_complete_buf(struct a
- struct ath_txq *txq, struct list_head *bf_q,
- struct ath_tx_status *ts, int txok, int sendbar);
- static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
-- struct list_head *head);
-+ struct list_head *head, bool internal);
- static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, int len);
- static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
- struct ath_tx_status *ts, int nframes, int nbad,
-@@ -377,8 +377,7 @@ static void ath_tx_complete_aggr(struct
- bf_next = bf->bf_next;
-
- bf->bf_state.bf_type |= BUF_XRETRY;
-- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) ||
-- !bf->bf_stale || bf_next != NULL)
-+ if (!bf->bf_stale || bf_next != NULL)
- list_move_tail(&bf->list, &bf_head);
-
- ath_tx_rc_status(sc, bf, ts, 1, 1, 0, false);
-@@ -463,20 +462,14 @@ static void ath_tx_complete_aggr(struct
- }
- }
-
-- if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
-- bf_next == NULL) {
-- /*
-- * Make sure the last desc is reclaimed if it
-- * not a holding desc.
-- */
-- if (!bf_last->bf_stale)
-- list_move_tail(&bf->list, &bf_head);
-- else
-- INIT_LIST_HEAD(&bf_head);
-- } else {
-- BUG_ON(list_empty(bf_q));
-+ /*
-+ * Make sure the last desc is reclaimed if it
-+ * not a holding desc.
-+ */
-+ if (!bf_last->bf_stale || bf_next != NULL)
- list_move_tail(&bf->list, &bf_head);
-- }
-+ else
-+ INIT_LIST_HEAD(&bf_head);
-
- if (!txpending || (tid->state & AGGR_CLEANUP)) {
- /*
-@@ -837,7 +830,7 @@ static void ath_tx_sched_aggr(struct ath
- bf->bf_state.bf_type &= ~BUF_AGGR;
- ath9k_hw_clr11n_aggr(sc->sc_ah, bf->bf_desc);
- ath_buf_set_rate(sc, bf, fi->framelen);
-- ath_tx_txqaddbuf(sc, txq, &bf_q);
-+ ath_tx_txqaddbuf(sc, txq, &bf_q, false);
- continue;
- }
-
-@@ -849,7 +842,7 @@ static void ath_tx_sched_aggr(struct ath
- /* anchor last desc of aggregate */
- ath9k_hw_set11n_aggr_last(sc->sc_ah, bf->bf_lastbf->bf_desc);
-
-- ath_tx_txqaddbuf(sc, txq, &bf_q);
-+ ath_tx_txqaddbuf(sc, txq, &bf_q, false);
- TX_STAT_INC(txq->axq_qnum, a_aggr);
-
- } while (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
-@@ -1085,7 +1078,6 @@ struct ath_txq *ath_txq_setup(struct ath
- txq->txq_headidx = txq->txq_tailidx = 0;
- for (i = 0; i < ATH_TXFIFO_DEPTH; i++)
- INIT_LIST_HEAD(&txq->txq_fifo[i]);
-- INIT_LIST_HEAD(&txq->txq_fifo_pending);
- }
- return &sc->tx.txq[axq_qnum];
- }
-@@ -1155,13 +1147,8 @@ static bool bf_is_ampdu_not_probing(stru
- return bf_isampdu(bf) && !(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE);
- }
-
--/*
-- * Drain a given TX queue (could be Beacon or Data)
-- *
-- * This assumes output has been stopped and
-- * we do not need to block ath_tx_tasklet.
-- */
--void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx)
-+static void ath_drain_txq_list(struct ath_softc *sc, struct ath_txq *txq,
-+ struct list_head *list, bool retry_tx)
- {
- struct ath_buf *bf, *lastbf;
- struct list_head bf_head;
-@@ -1170,93 +1157,63 @@ void ath_draintxq(struct ath_softc *sc,
- memset(&ts, 0, sizeof(ts));
- INIT_LIST_HEAD(&bf_head);
-
-- for (;;) {
-- spin_lock_bh(&txq->axq_lock);
-+ while (!list_empty(list)) {
-+ bf = list_first_entry(list, struct ath_buf, list);
-
-- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
-- if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
-- txq->txq_headidx = txq->txq_tailidx = 0;
-- spin_unlock_bh(&txq->axq_lock);
-- break;
-- } else {
-- bf = list_first_entry(&txq->txq_fifo[txq->txq_tailidx],
-- struct ath_buf, list);
-- }
-- } else {
-- if (list_empty(&txq->axq_q)) {
-- txq->axq_link = NULL;
-- spin_unlock_bh(&txq->axq_lock);
-- break;
-- }
-- bf = list_first_entry(&txq->axq_q, struct ath_buf,
-- list);
--
-- if (bf->bf_stale) {
-- list_del(&bf->list);
-- spin_unlock_bh(&txq->axq_lock);
-+ if (bf->bf_stale) {
-+ list_del(&bf->list);
-
-- ath_tx_return_buffer(sc, bf);
-- continue;
-- }
-+ ath_tx_return_buffer(sc, bf);
-+ continue;
- }
-
- lastbf = bf->bf_lastbf;
--
-- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
-- list_cut_position(&bf_head,
-- &txq->txq_fifo[txq->txq_tailidx],
-- &lastbf->list);
-- INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
-- } else {
-- /* remove ath_buf's of the same mpdu from txq */
-- list_cut_position(&bf_head, &txq->axq_q, &lastbf->list);
-- }
-+ list_cut_position(&bf_head, list, &lastbf->list);
-
- txq->axq_depth--;
- if (bf_is_ampdu_not_probing(bf))
- txq->axq_ampdu_depth--;
-- spin_unlock_bh(&txq->axq_lock);
-
-+ spin_unlock_bh(&txq->axq_lock);
- if (bf_isampdu(bf))
- ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, 0,
- retry_tx);
- else
- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0, 0);
-+ spin_lock_bh(&txq->axq_lock);
- }
-+}
-
-+/*
-+ * Drain a given TX queue (could be Beacon or Data)
-+ *
-+ * This assumes output has been stopped and
-+ * we do not need to block ath_tx_tasklet.
-+ */
-+void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx)
-+{
- spin_lock_bh(&txq->axq_lock);
-- txq->axq_tx_inprogress = false;
-- spin_unlock_bh(&txq->axq_lock);
--
- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
-- spin_lock_bh(&txq->axq_lock);
-- while (!list_empty(&txq->txq_fifo_pending)) {
-- bf = list_first_entry(&txq->txq_fifo_pending,
-- struct ath_buf, list);
-- list_cut_position(&bf_head,
-- &txq->txq_fifo_pending,
-- &bf->bf_lastbf->list);
-- spin_unlock_bh(&txq->axq_lock);
-+ int idx = txq->txq_tailidx;
-
-- if (bf_isampdu(bf))
-- ath_tx_complete_aggr(sc, txq, bf, &bf_head,
-- &ts, 0, retry_tx);
-- else
-- ath_tx_complete_buf(sc, bf, txq, &bf_head,
-- &ts, 0, 0);
-- spin_lock_bh(&txq->axq_lock);
-+ while (!list_empty(&txq->txq_fifo[idx])) {
-+ ath_drain_txq_list(sc, txq, &txq->txq_fifo[idx],
-+ retry_tx);
-+
-+ INCR(idx, ATH_TXFIFO_DEPTH);
- }
-- spin_unlock_bh(&txq->axq_lock);
-+ txq->txq_tailidx = idx;
- }
-
-+ txq->axq_link = NULL;
-+ txq->axq_tx_inprogress = false;
-+ ath_drain_txq_list(sc, txq, &txq->axq_q, retry_tx);
-+
- /* flush any pending frames if aggregation is enabled */
-- if (sc->sc_flags & SC_OP_TXAGGR) {
-- if (!retry_tx) {
-- spin_lock_bh(&txq->axq_lock);
-- ath_txq_drain_pending_buffers(sc, txq);
-- spin_unlock_bh(&txq->axq_lock);
-- }
-- }
-+ if ((sc->sc_flags & SC_OP_TXAGGR) && !retry_tx)
-+ ath_txq_drain_pending_buffers(sc, txq);
-+
-+ spin_unlock_bh(&txq->axq_lock);
- }
-
- bool ath_drain_all_txq(struct ath_softc *sc, bool retry_tx)
-@@ -1370,11 +1327,13 @@ void ath_txq_schedule(struct ath_softc *
- * assume the descriptors are already chained together by caller.
- */
- static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
-- struct list_head *head)
-+ struct list_head *head, bool internal)
- {
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
-- struct ath_buf *bf;
-+ struct ath_buf *bf, *bf_last;
-+ bool puttxbuf = false;
-+ bool edma;
-
- /*
- * Insert the frame on the outbound list and
-@@ -1384,51 +1343,49 @@ static void ath_tx_txqaddbuf(struct ath_
- if (list_empty(head))
- return;
-
-+ edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
- bf = list_first_entry(head, struct ath_buf, list);
-+ bf_last = list_entry(head->prev, struct ath_buf, list);
-
- ath_dbg(common, ATH_DBG_QUEUE,
- "qnum: %d, txq depth: %d\n", txq->axq_qnum, txq->axq_depth);
-
-- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
-- if (txq->axq_depth >= ATH_TXFIFO_DEPTH) {
-- list_splice_tail_init(head, &txq->txq_fifo_pending);
-- return;
-- }
-- if (!list_empty(&txq->txq_fifo[txq->txq_headidx]))
-- ath_dbg(common, ATH_DBG_XMIT,
-- "Initializing tx fifo %d which is non-empty\n",
-- txq->txq_headidx);
-- INIT_LIST_HEAD(&txq->txq_fifo[txq->txq_headidx]);
-- list_splice_init(head, &txq->txq_fifo[txq->txq_headidx]);
-+ if (edma && list_empty(&txq->txq_fifo[txq->txq_headidx])) {
-+ list_splice_tail_init(head, &txq->txq_fifo[txq->txq_headidx]);
- INCR(txq->txq_headidx, ATH_TXFIFO_DEPTH);
-- TX_STAT_INC(txq->axq_qnum, puttxbuf);
-- ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
-- ath_dbg(common, ATH_DBG_XMIT, "TXDP[%u] = %llx (%p)\n",
-- txq->axq_qnum, ito64(bf->bf_daddr), bf->bf_desc);
-+ puttxbuf = true;
- } else {
- list_splice_tail_init(head, &txq->axq_q);
-
-- if (txq->axq_link == NULL) {
-- TX_STAT_INC(txq->axq_qnum, puttxbuf);
-- ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
-- ath_dbg(common, ATH_DBG_XMIT, "TXDP[%u] = %llx (%p)\n",
-- txq->axq_qnum, ito64(bf->bf_daddr),
-- bf->bf_desc);
-- } else {
-- *txq->axq_link = bf->bf_daddr;
-+ if (txq->axq_link) {
-+ ath9k_hw_set_desc_link(ah, txq->axq_link, bf->bf_daddr);
- ath_dbg(common, ATH_DBG_XMIT,
- "link[%u] (%p)=%llx (%p)\n",
- txq->axq_qnum, txq->axq_link,
- ito64(bf->bf_daddr), bf->bf_desc);
-- }
-- ath9k_hw_get_desc_link(ah, bf->bf_lastbf->bf_desc,
-- &txq->axq_link);
-+ } else if (!edma)
-+ puttxbuf = true;
-+
-+ txq->axq_link = bf_last->bf_desc;
-+ }
-+
-+ if (puttxbuf) {
-+ TX_STAT_INC(txq->axq_qnum, puttxbuf);
-+ ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
-+ ath_dbg(common, ATH_DBG_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);
- ath9k_hw_txstart(ah, txq->axq_qnum);
- }
-- txq->axq_depth++;
-- if (bf_is_ampdu_not_probing(bf))
-- txq->axq_ampdu_depth++;
-+
-+ if (!internal) {
-+ txq->axq_depth++;
-+ if (bf_is_ampdu_not_probing(bf))
-+ txq->axq_ampdu_depth++;
-+ }
- }
-
- static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
-@@ -1470,7 +1427,7 @@ static void ath_tx_send_ampdu(struct ath
- TX_STAT_INC(txctl->txq->axq_qnum, a_queued_hw);
- bf->bf_lastbf = bf;
- ath_buf_set_rate(sc, bf, fi->framelen);
-- ath_tx_txqaddbuf(sc, txctl->txq, &bf_head);
-+ ath_tx_txqaddbuf(sc, txctl->txq, &bf_head, false);
- }
-
- static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
-@@ -1490,7 +1447,7 @@ static void ath_tx_send_normal(struct at
- bf->bf_lastbf = bf;
- fi = get_frame_info(bf->bf_mpdu);
- ath_buf_set_rate(sc, bf, fi->framelen);
-- ath_tx_txqaddbuf(sc, txq, bf_head);
-+ ath_tx_txqaddbuf(sc, txq, bf_head, false);
- TX_STAT_INC(txq->axq_qnum, queued);
- }
-
-@@ -2077,6 +2034,38 @@ static void ath_tx_rc_status(struct ath_
- tx_info->status.rates[tx_rateindex].count = ts->ts_longretry + 1;
- }
-
-+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)
-+{
-+ int txok;
-+
-+ txq->axq_depth--;
-+ txok = !(ts->ts_status & ATH9K_TXERR_MASK);
-+ txq->axq_tx_inprogress = false;
-+ if (bf_is_ampdu_not_probing(bf))
-+ txq->axq_ampdu_depth--;
-+
-+ spin_unlock_bh(&txq->axq_lock);
-+
-+ if (!bf_isampdu(bf)) {
-+ /*
-+ * This frame is sent out as a single frame.
-+ * Use hardware retry status for this frame.
-+ */
-+ if (ts->ts_status & ATH9K_TXERR_XRETRY)
-+ bf->bf_state.bf_type |= BUF_XRETRY;
-+ ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok, true);
-+ ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok, 0);
-+ } else
-+ ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok, true);
-+
-+ spin_lock_bh(&txq->axq_lock);
-+
-+ if (sc->sc_flags & SC_OP_TXAGGR)
-+ ath_txq_schedule(sc, txq);
-+}
-+
- static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
- {
- struct ath_hw *ah = sc->sc_ah;
-@@ -2085,20 +2074,18 @@ static void ath_tx_processq(struct ath_s
- struct list_head bf_head;
- struct ath_desc *ds;
- struct ath_tx_status ts;
-- int txok;
- int status;
-
- ath_dbg(common, ATH_DBG_QUEUE, "tx queue %d (%x), link %p\n",
- txq->axq_qnum, ath9k_hw_gettxbuf(sc->sc_ah, txq->axq_qnum),
- txq->axq_link);
-
-+ spin_lock_bh(&txq->axq_lock);
- for (;;) {
-- spin_lock_bh(&txq->axq_lock);
- if (list_empty(&txq->axq_q)) {
- txq->axq_link = NULL;
- if (sc->sc_flags & SC_OP_TXAGGR)
- ath_txq_schedule(sc, txq);
-- spin_unlock_bh(&txq->axq_lock);
- break;
- }
- bf = list_first_entry(&txq->axq_q, struct ath_buf, list);
-@@ -2114,13 +2101,11 @@ static void ath_tx_processq(struct ath_s
- bf_held = NULL;
- if (bf->bf_stale) {
- bf_held = bf;
-- if (list_is_last(&bf_held->list, &txq->axq_q)) {
-- spin_unlock_bh(&txq->axq_lock);
-+ if (list_is_last(&bf_held->list, &txq->axq_q))
- break;
-- } else {
-- bf = list_entry(bf_held->list.next,
-- struct ath_buf, list);
-- }
-+
-+ bf = list_entry(bf_held->list.next, struct ath_buf,
-+ list);
- }
-
- lastbf = bf->bf_lastbf;
-@@ -2128,10 +2113,9 @@ static void ath_tx_processq(struct ath_s
-
- memset(&ts, 0, sizeof(ts));
- status = ath9k_hw_txprocdesc(ah, ds, &ts);
-- if (status == -EINPROGRESS) {
-- spin_unlock_bh(&txq->axq_lock);
-+ if (status == -EINPROGRESS)
- break;
-- }
-+
- TX_STAT_INC(txq->axq_qnum, txprocdesc);
-
- /*
-@@ -2145,42 +2129,14 @@ static void ath_tx_processq(struct ath_s
- list_cut_position(&bf_head,
- &txq->axq_q, lastbf->list.prev);
-
-- txq->axq_depth--;
-- txok = !(ts.ts_status & ATH9K_TXERR_MASK);
-- txq->axq_tx_inprogress = false;
-- if (bf_held)
-+ if (bf_held) {
- list_del(&bf_held->list);
--
-- if (bf_is_ampdu_not_probing(bf))
-- txq->axq_ampdu_depth--;
--
-- spin_unlock_bh(&txq->axq_lock);
--
-- if (bf_held)
- ath_tx_return_buffer(sc, bf_held);
--
-- if (!bf_isampdu(bf)) {
-- /*
-- * This frame is sent out as a single frame.
-- * Use hardware retry status for this frame.
-- */
-- if (ts.ts_status & ATH9K_TXERR_XRETRY)
-- bf->bf_state.bf_type |= BUF_XRETRY;
-- ath_tx_rc_status(sc, bf, &ts, 1, txok ? 0 : 1, txok, true);
- }
-
-- if (bf_isampdu(bf))
-- ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, txok,
-- true);
-- else
-- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, txok, 0);
--
-- spin_lock_bh(&txq->axq_lock);
--
-- if (sc->sc_flags & SC_OP_TXAGGR)
-- ath_txq_schedule(sc, txq);
-- spin_unlock_bh(&txq->axq_lock);
-+ ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
- }
-+ spin_unlock_bh(&txq->axq_lock);
- }
-
- static void ath_tx_complete_poll_work(struct work_struct *work)
-@@ -2237,17 +2193,16 @@ void ath_tx_tasklet(struct ath_softc *sc
-
- void ath_tx_edma_tasklet(struct ath_softc *sc)
- {
-- struct ath_tx_status txs;
-+ struct ath_tx_status ts;
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_hw *ah = sc->sc_ah;
- struct ath_txq *txq;
- struct ath_buf *bf, *lastbf;
- struct list_head bf_head;
- int status;
-- int txok;
-
- for (;;) {
-- status = ath9k_hw_txprocdesc(ah, NULL, (void *)&txs);
-+ status = ath9k_hw_txprocdesc(ah, NULL, (void *)&ts);
- if (status == -EINPROGRESS)
- break;
- if (status == -EIO) {
-@@ -2257,12 +2212,13 @@ void ath_tx_edma_tasklet(struct ath_soft
- }
-
- /* Skip beacon completions */
-- if (txs.qid == sc->beacon.beaconq)
-+ if (ts.qid == sc->beacon.beaconq)
- continue;
-
-- txq = &sc->tx.txq[txs.qid];
-+ txq = &sc->tx.txq[ts.qid];
-
- spin_lock_bh(&txq->axq_lock);
-+
- if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
- spin_unlock_bh(&txq->axq_lock);
- return;
-@@ -2275,41 +2231,21 @@ void ath_tx_edma_tasklet(struct ath_soft
- INIT_LIST_HEAD(&bf_head);
- list_cut_position(&bf_head, &txq->txq_fifo[txq->txq_tailidx],
- &lastbf->list);
-- INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
-- txq->axq_depth--;
-- txq->axq_tx_inprogress = false;
-- if (bf_is_ampdu_not_probing(bf))
-- txq->axq_ampdu_depth--;
-- spin_unlock_bh(&txq->axq_lock);
-
-- txok = !(txs.ts_status & ATH9K_TXERR_MASK);
--
-- if (!bf_isampdu(bf)) {
-- if (txs.ts_status & ATH9K_TXERR_XRETRY)
-- bf->bf_state.bf_type |= BUF_XRETRY;
-- ath_tx_rc_status(sc, bf, &txs, 1, txok ? 0 : 1, txok, true);
-- }
--
-- if (bf_isampdu(bf))
-- ath_tx_complete_aggr(sc, txq, bf, &bf_head, &txs,
-- txok, true);
-- else
-- ath_tx_complete_buf(sc, bf, txq, &bf_head,
-- &txs, txok, 0);
-+ if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
-+ INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
-
-- spin_lock_bh(&txq->axq_lock);
-+ if (!list_empty(&txq->axq_q)) {
-+ struct list_head bf_q;
-
-- if (!list_empty(&txq->txq_fifo_pending)) {
-- INIT_LIST_HEAD(&bf_head);
-- bf = list_first_entry(&txq->txq_fifo_pending,
-- struct ath_buf, list);
-- list_cut_position(&bf_head,
-- &txq->txq_fifo_pending,
-- &bf->bf_lastbf->list);
-- ath_tx_txqaddbuf(sc, txq, &bf_head);
-- } else if (sc->sc_flags & SC_OP_TXAGGR)
-- ath_txq_schedule(sc, txq);
-+ INIT_LIST_HEAD(&bf_q);
-+ txq->axq_link = NULL;
-+ list_splice_tail_init(&txq->axq_q, &bf_q);
-+ ath_tx_txqaddbuf(sc, txq, &bf_q, true);
-+ }
-+ }
-
-+ ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
- spin_unlock_bh(&txq->axq_lock);
- }
- }
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
-@@ -161,6 +161,8 @@ static void ieee80211_send_addba_resp(st
+@@ -176,6 +176,8 @@ static void ieee80211_send_addba_resp(st
memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
else if (sdata->vif.type == NL80211_IFTYPE_STATION)
memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_ACTION);
+@@ -262,7 +264,11 @@ void ieee80211_process_addba_request(str
+ "%pM on tid %u\n",
+ mgmt->sa, tid);
+ #endif /* CONFIG_MAC80211_HT_DEBUG */
+- goto end;
++
++ /* delete existing Rx BA session on the same tid */
++ ___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
++ WLAN_STATUS_UNSPECIFIED_QOS,
++ false);
+ }
+
+ /* prepare A-MPDU MLME for Rx aggregation */
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -79,7 +79,8 @@ static void ieee80211_send_addba_request
memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
else if (sdata->vif.type == NL80211_IFTYPE_STATION)
memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
-@@ -388,7 +389,8 @@ int ieee80211_start_tx_ba_session(struct
+@@ -398,7 +399,8 @@ int ieee80211_start_tx_ba_session(struct
*/
if (sdata->vif.type != NL80211_IFTYPE_STATION &&
sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
static void ieee80211_iface_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
-@@ -822,6 +863,9 @@ static void ieee80211_iface_work(struct
+@@ -822,6 +863,9 @@ static void ieee80211_iface_work(struct
break;
ieee80211_mesh_rx_queued_mgmt(sdata, skb);
break;
WLAN_STA_CLEAR_PS_FILT = 1<<9,
WLAN_STA_MFP = 1<<10,
WLAN_STA_BLOCK_BA = 1<<11,
---- a/drivers/net/wireless/ath/ath9k/debug.h
-+++ b/drivers/net/wireless/ath/ath9k/debug.h
-@@ -116,6 +116,7 @@ struct ath_tx_stats {
- u32 tx_bytes_all;
- u32 queued;
- u32 completed;
-+ u32 xretries;
- u32 a_aggr;
- u32 a_queued_hw;
- u32 a_queued_sw;
---- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-@@ -4645,10 +4645,16 @@ static void ar9003_hw_set_power_per_rate
- case 1:
- break;
- case 2:
-- scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+ if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
-+ scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+ else
-+ scaledPower = 0;
- break;
- case 3:
-- scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+ if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
-+ scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+ else
-+ scaledPower = 0;
- break;
+--- a/drivers/net/wireless/ath/ath9k/beacon.c
++++ b/drivers/net/wireless/ath/ath9k/beacon.c
+@@ -360,6 +360,7 @@ void ath_beacon_tasklet(unsigned long da
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath_buf *bf = NULL;
+ struct ieee80211_vif *vif;
++ struct ath_tx_status ts;
+ int slot;
+ u32 bfaddr, bc = 0;
+
+@@ -384,7 +385,9 @@ void ath_beacon_tasklet(unsigned long da
+ ath_dbg(common, ATH_DBG_BSTUCK,
+ "beacon is officially stuck\n");
+ sc->sc_flags |= SC_OP_TSF_RESET;
++ spin_lock(&sc->sc_pcu_lock);
+ ath_reset(sc, true);
++ spin_unlock(&sc->sc_pcu_lock);
+ }
+
+ return;
+@@ -464,6 +467,11 @@ void ath_beacon_tasklet(unsigned long da
+ ath9k_hw_txstart(ah, sc->beacon.beaconq);
+
+ sc->beacon.ast_be_xmit += bc; /* XXX per-vif? */
++ if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
++ spin_lock_bh(&sc->sc_pcu_lock);
++ ath9k_hw_txprocdesc(ah, bf->bf_desc, (void *)&ts);
++ spin_unlock_bh(&sc->sc_pcu_lock);
++ }
}
+ }
---- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c
-+++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
-@@ -524,10 +524,16 @@ static void ath9k_hw_set_ar9287_power_pe
- case 1:
- break;
- case 2:
-- scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+ if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
-+ scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+ else
-+ scaledPower = 0;
- break;
- case 3:
-- scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+ if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
-+ scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+ else
-+ scaledPower = 0;
- break;
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -617,8 +617,11 @@ void ath_hw_check(struct work_struct *wo
+ ath_dbg(common, ATH_DBG_RESET, "Possible baseband hang, "
+ "busy=%d (try %d)\n", busy, sc->hw_busy_count + 1);
+ if (busy >= 99) {
+- if (++sc->hw_busy_count >= 3)
++ if (++sc->hw_busy_count >= 3) {
++ spin_lock_bh(&sc->sc_pcu_lock);
+ ath_reset(sc, true);
++ spin_unlock_bh(&sc->sc_pcu_lock);
++ }
+ } else if (busy >= 0)
+ sc->hw_busy_count = 0;
+
+@@ -637,7 +640,9 @@ static void ath_hw_pll_rx_hang_check(str
+ /* Rx is hung for more than 500ms. Reset it */
+ ath_dbg(common, ATH_DBG_RESET,
+ "Possible RX hang, resetting");
++ spin_lock_bh(&sc->sc_pcu_lock);
+ ath_reset(sc, true);
++ spin_unlock_bh(&sc->sc_pcu_lock);
+ count = 0;
+ }
+ } else
+@@ -674,7 +679,9 @@ void ath9k_tasklet(unsigned long data)
+
+ if ((status & ATH9K_INT_FATAL) ||
+ (status & ATH9K_INT_BB_WATCHDOG)) {
++ spin_lock(&sc->sc_pcu_lock);
+ ath_reset(sc, true);
++ spin_unlock(&sc->sc_pcu_lock);
+ return;
}
- scaledPower = max((u16)0, scaledPower);
+
+@@ -980,7 +987,6 @@ int ath_reset(struct ath_softc *sc, bool
+ del_timer_sync(&common->ani.timer);
+
+ ath9k_ps_wakeup(sc);
+- spin_lock_bh(&sc->sc_pcu_lock);
+
+ ieee80211_stop_queues(hw);
+
+@@ -1023,7 +1029,6 @@ int ath_reset(struct ath_softc *sc, bool
+ }
+
+ ieee80211_wake_queues(hw);
+- spin_unlock_bh(&sc->sc_pcu_lock);
+
+ /* Start ANI */
+ if (!common->disable_ani)
+@@ -2326,9 +2331,9 @@ static void ath9k_flush(struct ieee80211
+ ath9k_ps_wakeup(sc);
+ spin_lock_bh(&sc->sc_pcu_lock);
+ drain_txq = ath_drain_all_txq(sc, false);
+- spin_unlock_bh(&sc->sc_pcu_lock);
+ if (!drain_txq)
+ ath_reset(sc, false);
++ spin_unlock_bh(&sc->sc_pcu_lock);
+ ath9k_ps_restore(sc);
+ ieee80211_wake_queues(hw);
+
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -565,11 +565,8 @@ static void ath_tx_complete_aggr(struct
+
+ rcu_read_unlock();
+
+- if (needreset) {
+- spin_unlock_bh(&sc->sc_pcu_lock);
++ if (needreset)
+ ath_reset(sc, false);
+- spin_lock_bh(&sc->sc_pcu_lock);
+- }
+ }
+
+ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
+@@ -664,7 +661,8 @@ static int ath_compute_num_delims(struct
+ * TODO - this could be improved to be dependent on the rate.
+ * The hardware can keep up at lower rates, but not higher rates
+ */
+- if (fi->keyix != ATH9K_TXKEYIX_INVALID)
++ if ((fi->keyix != ATH9K_TXKEYIX_INVALID) &&
++ !(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))
+ ndelim += ATH_AGGR_ENCRYPTDELIM;
+
+ /*
+@@ -2169,7 +2167,9 @@ static void ath_tx_complete_poll_work(st
+ if (needreset) {
+ ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_RESET,
+ "tx hung, resetting the chip\n");
++ spin_lock_bh(&sc->sc_pcu_lock);
+ ath_reset(sc, true);
++ spin_unlock_bh(&sc->sc_pcu_lock);
+ }
+
+ ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,
+--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+@@ -236,7 +236,7 @@ static void ar9003_paprd_get_gain_table(
+ memset(entry, 0, sizeof(ah->paprd_gain_table_entries));
+ memset(index, 0, sizeof(ah->paprd_gain_table_index));
+
+- for (i = 0; i < 32; i++) {
++ for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
+ entry[i] = REG_READ(ah, reg);
+ index[i] = (entry[i] >> 24) & 0xff;
+ reg += 4;
+@@ -246,13 +246,13 @@ static void ar9003_paprd_get_gain_table(
+ static unsigned int ar9003_get_desired_gain(struct ath_hw *ah, int chain,
+ int target_power)
+ {
+- int olpc_gain_delta = 0;
++ int olpc_gain_delta = 0, cl_gain_mod;
+ int alpha_therm, alpha_volt;
+ int therm_cal_value, volt_cal_value;
+ int therm_value, volt_value;
+ int thermal_gain_corr, voltage_gain_corr;
+ int desired_scale, desired_gain = 0;
+- u32 reg;
++ u32 reg_olpc = 0, reg_cl_gain = 0;
+
+ REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1,
+ AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
+@@ -271,15 +271,29 @@ static unsigned int ar9003_get_desired_g
+ volt_value = REG_READ_FIELD(ah, AR_PHY_BB_THERM_ADC_4,
+ AR_PHY_BB_THERM_ADC_4_LATEST_VOLT_VALUE);
+
+- if (chain == 0)
+- reg = AR_PHY_TPC_11_B0;
+- else if (chain == 1)
+- reg = AR_PHY_TPC_11_B1;
+- else
+- reg = AR_PHY_TPC_11_B2;
++ switch (chain) {
++ case 0:
++ reg_olpc = AR_PHY_TPC_11_B0;
++ reg_cl_gain = AR_PHY_CL_TAB_0;
++ break;
++ case 1:
++ reg_olpc = AR_PHY_TPC_11_B1;
++ reg_cl_gain = AR_PHY_CL_TAB_1;
++ break;
++ case 2:
++ reg_olpc = AR_PHY_TPC_11_B2;
++ reg_cl_gain = AR_PHY_CL_TAB_2;
++ break;
++ default:
++ ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
++ "Invalid chainmask: %d\n", chain);
++ break;
++ }
+
+- olpc_gain_delta = REG_READ_FIELD(ah, reg,
++ olpc_gain_delta = REG_READ_FIELD(ah, reg_olpc,
+ AR_PHY_TPC_11_OLPC_GAIN_DELTA);
++ cl_gain_mod = REG_READ_FIELD(ah, reg_cl_gain,
++ AR_PHY_CL_TAB_CL_GAIN_MOD);
+
+ if (olpc_gain_delta >= 128)
+ olpc_gain_delta = olpc_gain_delta - 256;
+@@ -289,7 +303,7 @@ static unsigned int ar9003_get_desired_g
+ voltage_gain_corr = (alpha_volt * (volt_value - volt_cal_value) +
+ (128 / 2)) / 128;
+ desired_gain = target_power - olpc_gain_delta - thermal_gain_corr -
+- voltage_gain_corr + desired_scale;
++ voltage_gain_corr + desired_scale + cl_gain_mod;
+
+ return desired_gain;
+ }
+@@ -727,7 +741,7 @@ int ar9003_paprd_setup_gain_table(struct
+ desired_gain = ar9003_get_desired_gain(ah, chain, train_power);
+
+ gain_index = 0;
+- for (i = 0; i < 32; i++) {
++ for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
+ if (ah->paprd_gain_table_index[i] >= desired_gain)
+ break;
+ gain_index++;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
++++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+@@ -1121,6 +1121,9 @@
+ #define AR_PHY_POWERTX_RATE8_POWERTXHT40_5 0x3F00
+ #define AR_PHY_POWERTX_RATE8_POWERTXHT40_5_S 8
+
++#define AR_PHY_CL_TAB_CL_GAIN_MOD 0x1f
++#define AR_PHY_CL_TAB_CL_GAIN_MOD_S 0
++
+ void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx);
+
+ #endif /* AR9003_PHY_H */
+--- a/drivers/net/wireless/ath/ath5k/eeprom.c
++++ b/drivers/net/wireless/ath/ath5k/eeprom.c
+@@ -691,14 +691,12 @@ ath5k_eeprom_free_pcal_info(struct ath5k
+ if (!chinfo[pier].pd_curves)
+ continue;
+
+- for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) {
++ for (pdg = 0; pdg < AR5K_EEPROM_N_PD_CURVES; pdg++) {
+ struct ath5k_pdgain_info *pd =
+ &chinfo[pier].pd_curves[pdg];
+
+- if (pd != NULL) {
+- kfree(pd->pd_step);
+- kfree(pd->pd_pwr);
+- }
++ kfree(pd->pd_step);
++ kfree(pd->pd_pwr);
+ }
+
+ kfree(chinfo[pier].pd_curves);
+--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+@@ -229,6 +229,7 @@ static void ar9003_hw_fill_txdesc(struct
+ static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
+ struct ath_tx_status *ts)
+ {
++ struct ar9003_txc *txc = (struct ar9003_txc *) ds;
+ struct ar9003_txs *ads;
+ u32 status;
+
+@@ -238,7 +239,11 @@ static int ar9003_hw_proc_txdesc(struct
+ if ((status & AR_TxDone) == 0)
+ return -EINPROGRESS;
+
+- ah->ts_tail = (ah->ts_tail + 1) % ah->ts_size;
++ ts->qid = MS(ads->ds_info, AR_TxQcuNum);
++ if (!txc || (MS(txc->info, AR_TxQcuNum) == ts->qid))
++ ah->ts_tail = (ah->ts_tail + 1) % ah->ts_size;
++ else
++ return -ENOENT;
+
+ if ((MS(ads->ds_info, AR_DescId) != ATHEROS_VENDOR_ID) ||
+ (MS(ads->ds_info, AR_TxRxDesc) != 1)) {
+@@ -254,7 +259,6 @@ static int ar9003_hw_proc_txdesc(struct
+ ts->ts_seqnum = MS(status, AR_SeqNum);
+ ts->tid = MS(status, AR_TxTid);
+
+- ts->qid = MS(ads->ds_info, AR_TxQcuNum);
+ ts->desc_id = MS(ads->status1, AR_TxDescId);
+ ts->ts_tstamp = ads->status4;
+ ts->ts_status = 0;
projects / openwrt.git / blobdiff