Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git

ath.git patches for 4.10. Major changes:

ath9k

* add device tree bindings
* switch to use mac80211 intermediate software queues to reduce
  latency and fix bufferbloat

Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt

+* Qualcomm Atheros ath9k wireless devices
+
+This node provides properties for configuring the ath9k wireless device. The
+node is expected to be specified as a child node of the PCI controller to
+which the wireless chip is connected.
+
+Required properties:
+- compatible: For PCI and PCIe devices this should be an identifier following
+		the format as defined in "PCI Bus Binding to Open Firmware"
+		Revision 2.1. One of the possible formats is "pciVVVV,DDDD"
+		where VVVV is the PCI vendor ID and DDDD is PCI device ID.
+		Typically QCA's PCI vendor ID 168c is used while the PCI device
+		ID depends on the chipset - see the following (possibly
+		incomplete) list:
+			- 0023 for AR5416
+			- 0024 for AR5418
+			- 0027 for AR9160
+			- 0029 for AR9220 and AR9223
+			- 002a for AR9280 and AR9283
+			- 002b for AR9285
+			- 002c for AR2427
+			- 002d for AR9227
+			- 002e for AR9287
+			- 0030 for AR9380, AR9381 and AR9382
+			- 0032 for AR9485
+			- 0033 for AR9580 and AR9590
+			- 0034 for AR9462
+			- 0036 for AR9565
+			- 0037 for AR9485
+- reg: Address and length of the register set for the device.
+
+Optional properties:
+- qca,no-eeprom: Indicates that there is no physical EEPROM connected to the
+			ath9k wireless chip (in this case the calibration /
+			EEPROM data will be loaded from userspace using the
+			kernel firmware loader).
+- mac-address: See ethernet.txt in the parent directory
+- local-mac-address: See ethernet.txt in the parent directory
+
+
+In this example, the node is defined as child node of the PCI controller:
+&pci0 {
+	wifi@168c,002d {
+		compatible = "pci168c,002d";
+		reg = <0x7000 0 0 0 0x1000>;
+		qca,no-eeprom;
+	};
+};

drivers/net/wireless/ath/ath.h

@@ -327,4 +327,10 @@ static inline const char *ath_opmode_to_string(enum nl80211_iftype opmode)
 }
 #endif
 
+extern const char *ath_bus_type_strings[];
+static inline const char *ath_bus_type_to_string(enum ath_bus_type bustype)
+{
+	return ath_bus_type_strings[bustype];
+}
+
 #endif /* ATH_H */

drivers/net/wireless/ath/ath10k/core.h

@@ -556,10 +556,8 @@ enum ath10k_fw_features {
 	 */
 	ATH10K_FW_FEATURE_BTCOEX_PARAM = 14,
 
-	/* Older firmware with HTT delivers incorrect tx status for null func
-	 * frames to driver, but this fixed in 10.2 and 10.4 firmware versions.
-	 * Also this workaround results in reporting of incorrect null func
-	 * status for 10.4. This flag is used to skip the workaround.
+	/* Unused flag and proven to be not working, enable this if you want
+	 * to experiment sending NULL func data frames in HTT TX
 	 */
 	ATH10K_FW_FEATURE_SKIP_NULL_FUNC_WAR = 15,
 

drivers/net/wireless/ath/ath10k/htt_tx.c

@@ -229,6 +229,32 @@ void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id)
 	idr_remove(&htt->pending_tx, msdu_id);
 }
 
+static void ath10k_htt_tx_free_cont_txbuf(struct ath10k_htt *htt)
+{
+	struct ath10k *ar = htt->ar;
+	size_t size;
+
+	if (!htt->txbuf.vaddr)
+		return;
+
+	size = htt->max_num_pending_tx * sizeof(struct ath10k_htt_txbuf);
+	dma_free_coherent(ar->dev, size, htt->txbuf.vaddr, htt->txbuf.paddr);
+}
+
+static int ath10k_htt_tx_alloc_cont_txbuf(struct ath10k_htt *htt)
+{
+	struct ath10k *ar = htt->ar;
+	size_t size;
+
+	size = htt->max_num_pending_tx * sizeof(struct ath10k_htt_txbuf);
+	htt->txbuf.vaddr = dma_alloc_coherent(ar->dev, size, &htt->txbuf.paddr,
+					      GFP_KERNEL);
+	if (!htt->txbuf.vaddr)
+		return -ENOMEM;
+
+	return 0;
+}
+
 static void ath10k_htt_tx_free_cont_frag_desc(struct ath10k_htt *htt)
 {
 	size_t size;
@@ -256,10 +282,8 @@ static int ath10k_htt_tx_alloc_cont_frag_desc(struct ath10k_htt *htt)
 	htt->frag_desc.vaddr = dma_alloc_coherent(ar->dev, size,
 						  &htt->frag_desc.paddr,
 						  GFP_KERNEL);
-	if (!htt->frag_desc.vaddr) {
-		ath10k_err(ar, "failed to alloc fragment desc memory\n");
+	if (!htt->frag_desc.vaddr)
 		return -ENOMEM;
-	}
 
 	return 0;
 }
@@ -310,10 +334,26 @@ static int ath10k_htt_tx_alloc_txq(struct ath10k_htt *htt)
 	return 0;
 }
 
+static void ath10k_htt_tx_free_txdone_fifo(struct ath10k_htt *htt)
+{
+	WARN_ON(!kfifo_is_empty(&htt->txdone_fifo));
+	kfifo_free(&htt->txdone_fifo);
+}
+
+static int ath10k_htt_tx_alloc_txdone_fifo(struct ath10k_htt *htt)
+{
+	int ret;
+	size_t size;
+
+	size = roundup_pow_of_two(htt->max_num_pending_tx);
+	ret = kfifo_alloc(&htt->txdone_fifo, size, GFP_KERNEL);
+	return ret;
+}
+
 int ath10k_htt_tx_alloc(struct ath10k_htt *htt)
 {
 	struct ath10k *ar = htt->ar;
-	int ret, size;
+	int ret;
 
 	ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt tx max num pending tx %d\n",
 		   htt->max_num_pending_tx);
@@ -321,13 +361,9 @@ int ath10k_htt_tx_alloc(struct ath10k_htt *htt)
 	spin_lock_init(&htt->tx_lock);
 	idr_init(&htt->pending_tx);
 
-	size = htt->max_num_pending_tx * sizeof(struct ath10k_htt_txbuf);
-	htt->txbuf.vaddr = dma_alloc_coherent(ar->dev, size,
-						  &htt->txbuf.paddr,
-						  GFP_KERNEL);
-	if (!htt->txbuf.vaddr) {
-		ath10k_err(ar, "failed to alloc tx buffer\n");
-		ret = -ENOMEM;
+	ret = ath10k_htt_tx_alloc_cont_txbuf(htt);
+	if (ret) {
+		ath10k_err(ar, "failed to alloc cont tx buffer: %d\n", ret);
 		goto free_idr_pending_tx;
 	}
 
@@ -343,8 +379,7 @@ int ath10k_htt_tx_alloc(struct ath10k_htt *htt)
 		goto free_frag_desc;
 	}
 
-	size = roundup_pow_of_two(htt->max_num_pending_tx);
-	ret = kfifo_alloc(&htt->txdone_fifo, size, GFP_KERNEL);
+	ret = ath10k_htt_tx_alloc_txdone_fifo(htt);
 	if (ret) {
 		ath10k_err(ar, "failed to alloc txdone fifo: %d\n", ret);
 		goto free_txq;
@@ -359,10 +394,7 @@ int ath10k_htt_tx_alloc(struct ath10k_htt *htt)
 	ath10k_htt_tx_free_cont_frag_desc(htt);
 
 free_txbuf:
-	size = htt->max_num_pending_tx *
-			  sizeof(struct ath10k_htt_txbuf);
-	dma_free_coherent(htt->ar->dev, size, htt->txbuf.vaddr,
-			  htt->txbuf.paddr);
+	ath10k_htt_tx_free_cont_txbuf(htt);
 
 free_idr_pending_tx:
 	idr_destroy(&htt->pending_tx);
@@ -388,22 +420,13 @@ static int ath10k_htt_tx_clean_up_pending(int msdu_id, void *skb, void *ctx)
 
 void ath10k_htt_tx_free(struct ath10k_htt *htt)
 {
-	int size;
-
 	idr_for_each(&htt->pending_tx, ath10k_htt_tx_clean_up_pending, htt->ar);
 	idr_destroy(&htt->pending_tx);
 
-	if (htt->txbuf.vaddr) {
-		size = htt->max_num_pending_tx *
-				  sizeof(struct ath10k_htt_txbuf);
-		dma_free_coherent(htt->ar->dev, size, htt->txbuf.vaddr,
-				  htt->txbuf.paddr);
-	}
-
+	ath10k_htt_tx_free_cont_txbuf(htt);
 	ath10k_htt_tx_free_txq(htt);
 	ath10k_htt_tx_free_cont_frag_desc(htt);
-	WARN_ON(!kfifo_is_empty(&htt->txdone_fifo));
-	kfifo_free(&htt->txdone_fifo);
+	ath10k_htt_tx_free_txdone_fifo(htt);
 }
 
 void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)

drivers/net/wireless/ath/ath10k/mac.c

@@ -3257,8 +3257,6 @@ ath10k_mac_tx_h_get_txmode(struct ath10k *ar,
 	if (ar->htt.target_version_major < 3 &&
 	    (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) &&
 	    !test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
-		      ar->running_fw->fw_file.fw_features) &&
-	    !test_bit(ATH10K_FW_FEATURE_SKIP_NULL_FUNC_WAR,
 		      ar->running_fw->fw_file.fw_features))
 		return ATH10K_HW_TXRX_MGMT;
 

drivers/net/wireless/ath/ath10k/spectral.c

@@ -338,7 +338,7 @@ static ssize_t write_file_spec_scan_ctl(struct file *file,
 		} else {
 			res = -EINVAL;
 		}
-	} else if (strncmp("background", buf, 9) == 0) {
+	} else if (strncmp("background", buf, 10) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_BACKGROUND);
 	} else if (strncmp("manual", buf, 6) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_MANUAL);

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -91,7 +91,6 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
 #define ATH_RXBUF               512
 #define ATH_TXBUF               512
 #define ATH_TXBUF_RESERVE       5
-#define ATH_MAX_QDEPTH          (ATH_TXBUF / 4 - ATH_TXBUF_RESERVE)
 #define ATH_TXMAXTRY            13
 #define ATH_MAX_SW_RETRIES      30
 
@@ -145,7 +144,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
 #define BAW_WITHIN(_start, _bawsz, _seqno) \
 	((((_seqno) - (_start)) & 4095) < (_bawsz))
 
-#define ATH_AN_2_TID(_an, _tidno)  (&(_an)->tid[(_tidno)])
+#define ATH_AN_2_TID(_an, _tidno) ath_node_to_tid(_an, _tidno)
 
 #define IS_HT_RATE(rate)   (rate & 0x80)
 #define IS_CCK_RATE(rate)  ((rate >= 0x18) && (rate <= 0x1e))
@@ -164,7 +163,6 @@ struct ath_txq {
 	spinlock_t axq_lock;
 	u32 axq_depth;
 	u32 axq_ampdu_depth;
-	bool stopped;
 	bool axq_tx_inprogress;
 	struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
 	u8 txq_headidx;
@@ -232,7 +230,6 @@ struct ath_buf {
 
 struct ath_atx_tid {
 	struct list_head list;
-	struct sk_buff_head buf_q;
 	struct sk_buff_head retry_q;
 	struct ath_node *an;
 	struct ath_txq *txq;
@@ -247,13 +244,13 @@ struct ath_atx_tid {
 	s8 bar_index;
 	bool active;
 	bool clear_ps_filter;
+	bool has_queued;
 };
 
 struct ath_node {
 	struct ath_softc *sc;
 	struct ieee80211_sta *sta; /* station struct we're part of */
 	struct ieee80211_vif *vif; /* interface with which we're associated */
-	struct ath_atx_tid tid[IEEE80211_NUM_TIDS];
 
 	u16 maxampdu;
 	u8 mpdudensity;
@@ -276,7 +273,6 @@ struct ath_tx_control {
 	struct ath_node *an;
 	struct ieee80211_sta *sta;
 	u8 paprd;
-	bool force_channel;
 };
 
 
@@ -293,7 +289,6 @@ struct ath_tx {
 	struct ath_descdma txdma;
 	struct ath_txq *txq_map[IEEE80211_NUM_ACS];
 	struct ath_txq *uapsdq;
-	u32 txq_max_pending[IEEE80211_NUM_ACS];
 	u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
 };
 
@@ -421,6 +416,22 @@ struct ath_offchannel {
 	int duration;
 };
 
+static inline struct ath_atx_tid *
+ath_node_to_tid(struct ath_node *an, u8 tidno)
+{
+	struct ieee80211_sta *sta = an->sta;
+	struct ieee80211_vif *vif = an->vif;
+	struct ieee80211_txq *txq;
+
+	BUG_ON(!vif);
+	if (sta)
+		txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
+	else
+		txq = vif->txq;
+
+	return (struct ath_atx_tid *) txq->drv_priv;
+}
+
 #define case_rtn_string(val) case val: return #val
 
 #define ath_for_each_chanctx(_sc, _ctx)                             \
@@ -575,7 +586,6 @@ void ath_tx_edma_tasklet(struct ath_softc *sc);
 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
 		      u16 tid, u16 *ssn);
 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
-void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
 
 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
@@ -585,6 +595,7 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
 				   u16 tids, int nframes,
 				   enum ieee80211_frame_release_type reason,
 				   bool more_data);
+void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
 
 /********/
 /* VIFs */

drivers/net/wireless/ath/ath9k/channel.c

@@ -1010,7 +1010,6 @@ static void ath_scan_send_probe(struct ath_softc *sc,
 		goto error;
 
 	txctl.txq = sc->tx.txq_map[IEEE80211_AC_VO];
-	txctl.force_channel = true;
 	if (ath_tx_start(sc->hw, skb, &txctl))
 		goto error;
 
@@ -1133,7 +1132,6 @@ ath_chanctx_send_vif_ps_frame(struct ath_softc *sc, struct ath_vif *avp,
 	memset(&txctl, 0, sizeof(txctl));
 	txctl.txq = sc->tx.txq_map[IEEE80211_AC_VO];
 	txctl.sta = sta;
-	txctl.force_channel = true;
 	if (ath_tx_start(sc->hw, skb, &txctl)) {
 		ieee80211_free_txskb(sc->hw, skb);
 		return false;

drivers/net/wireless/ath/ath9k/debug.c

@@ -600,7 +600,6 @@ static int read_file_xmit(struct seq_file *file, void *data)
 	PR("MPDUs XRetried:  ", xretries);
 	PR("Aggregates:      ", a_aggr);
 	PR("AMPDUs Queued HW:", a_queued_hw);
-	PR("AMPDUs Queued SW:", a_queued_sw);
 	PR("AMPDUs Completed:", a_completed);
 	PR("AMPDUs Retried:  ", a_retries);
 	PR("AMPDUs XRetried: ", a_xretries);
@@ -629,8 +628,7 @@ static void print_queue(struct ath_softc *sc, struct ath_txq *txq,
 	seq_printf(file, "%s: %d ", "qnum", txq->axq_qnum);
 	seq_printf(file, "%s: %2d ", "qdepth", txq->axq_depth);
 	seq_printf(file, "%s: %2d ", "ampdu-depth", txq->axq_ampdu_depth);
-	seq_printf(file, "%s: %3d ", "pending", txq->pending_frames);
-	seq_printf(file, "%s: %d\n", "stopped", txq->stopped);
+	seq_printf(file, "%s: %3d\n", "pending", txq->pending_frames);
 
 	ath_txq_unlock(sc, txq);
 }
@@ -1208,7 +1206,6 @@ static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
 	AMKSTR(d_tx_mpdu_xretries),
 	AMKSTR(d_tx_aggregates),
 	AMKSTR(d_tx_ampdus_queued_hw),
-	AMKSTR(d_tx_ampdus_queued_sw),
 	AMKSTR(d_tx_ampdus_completed),
 	AMKSTR(d_tx_ampdu_retries),
 	AMKSTR(d_tx_ampdu_xretries),
@@ -1288,7 +1285,6 @@ void ath9k_get_et_stats(struct ieee80211_hw *hw,
 	AWDATA(xretries);
 	AWDATA(a_aggr);
 	AWDATA(a_queued_hw);
-	AWDATA(a_queued_sw);
 	AWDATA(a_completed);
 	AWDATA(a_retries);
 	AWDATA(a_xretries);
@@ -1346,14 +1342,6 @@ int ath9k_init_debug(struct ath_hw *ah)
 				    read_file_xmit);
 	debugfs_create_devm_seqfile(sc->dev, "queues", sc->debug.debugfs_phy,
 				    read_file_queues);
-	debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
-			   &sc->tx.txq_max_pending[IEEE80211_AC_BK]);
-	debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
-			   &sc->tx.txq_max_pending[IEEE80211_AC_BE]);
-	debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
-			   &sc->tx.txq_max_pending[IEEE80211_AC_VI]);
-	debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
-			   &sc->tx.txq_max_pending[IEEE80211_AC_VO]);
 	debugfs_create_devm_seqfile(sc->dev, "misc", sc->debug.debugfs_phy,
 				    read_file_misc);
 	debugfs_create_devm_seqfile(sc->dev, "reset", sc->debug.debugfs_phy,

drivers/net/wireless/ath/ath9k/debug.h

@@ -147,7 +147,6 @@ struct ath_interrupt_stats {
  * @completed: Total MPDUs (non-aggr) completed
  * @a_aggr: Total no. of aggregates queued
  * @a_queued_hw: Total AMPDUs queued to hardware
- * @a_queued_sw: Total AMPDUs queued to software queues
  * @a_completed: Total AMPDUs completed
  * @a_retries: No. of AMPDUs retried (SW)
  * @a_xretries: No. of AMPDUs dropped due to xretries
@@ -174,7 +173,6 @@ struct ath_tx_stats {
 	u32 xretries;
 	u32 a_aggr;
 	u32 a_queued_hw;
-	u32 a_queued_sw;
 	u32 a_completed;
 	u32 a_retries;
 	u32 a_xretries;

drivers/net/wireless/ath/ath9k/debug_sta.c

@@ -52,8 +52,8 @@ static ssize_t read_file_node_aggr(struct file *file, char __user *user_buf,
 			 "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
 			 "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
 
-	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);
 		txq = tid->txq;
 		ath_txq_lock(sc, txq);
 		if (tid->active) {

drivers/net/wireless/ath/ath9k/htc_hst.c

@@ -244,8 +244,8 @@ int htc_connect_service(struct htc_target *target,
 	/* Find an available endpoint */
 	endpoint = get_next_avail_ep(target->endpoint);
 	if (!endpoint) {
-		dev_err(target->dev, "Endpoint is not available for"
-			"service %d\n", service_connreq->service_id);
+		dev_err(target->dev, "Endpoint is not available for service %d\n",
+			service_connreq->service_id);
 		return -EINVAL;
 	}
 
@@ -382,7 +382,7 @@ static void ath9k_htc_fw_panic_report(struct htc_target *htc_handle,
 		break;
 		}
 	default:
-		dev_err(htc_handle->dev, "ath: uknown panic pattern!\n");
+		dev_err(htc_handle->dev, "ath: unknown panic pattern!\n");
 		break;
 	}
 }

drivers/net/wireless/ath/ath9k/init.c

@@ -20,6 +20,8 @@
 #include <linux/slab.h>
 #include <linux/ath9k_platform.h>
 #include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
 #include <linux/relay.h>
 #include <net/ieee80211_radiotap.h>
 
@@ -358,7 +360,6 @@ static int ath9k_init_queues(struct ath_softc *sc)
 	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 		sc->tx.txq_map[i] = ath_txq_setup(sc, ATH9K_TX_QUEUE_DATA, i);
 		sc->tx.txq_map[i]->mac80211_qnum = i;
-		sc->tx.txq_max_pending[i] = ATH_MAX_QDEPTH;
 	}
 	return 0;
 }
@@ -555,6 +556,42 @@ static int ath9k_init_platform(struct ath_softc *sc)
 	return 0;
 }
 
+static int ath9k_of_init(struct ath_softc *sc)
+{
+	struct device_node *np = sc->dev->of_node;
+	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+	enum ath_bus_type bus_type = common->bus_ops->ath_bus_type;
+	const char *mac;
+	char eeprom_name[100];
+	int ret;
+
+	if (!of_device_is_available(np))
+		return 0;
+
+	ath_dbg(common, CONFIG, "parsing configuration from OF node\n");
+
+	if (of_property_read_bool(np, "qca,no-eeprom")) {
+		/* ath9k-eeprom-<bus>-<id>.bin */
+		scnprintf(eeprom_name, sizeof(eeprom_name),
+			  "ath9k-eeprom-%s-%s.bin",
+			  ath_bus_type_to_string(bus_type), dev_name(ah->dev));
+
+		ret = ath9k_eeprom_request(sc, eeprom_name);
+		if (ret)
+			return ret;
+	}
+
+	mac = of_get_mac_address(np);
+	if (mac)
+		ether_addr_copy(common->macaddr, mac);
+
+	ah->ah_flags &= ~AH_USE_EEPROM;
+	ah->ah_flags |= AH_NO_EEP_SWAP;
+
+	return 0;
+}
+
 static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 			    const struct ath_bus_ops *bus_ops)
 {
@@ -611,6 +648,10 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	if (ret)
 		return ret;
 
+	ret = ath9k_of_init(sc);
+	if (ret)
+		return ret;
+
 	if (ath9k_led_active_high != -1)
 		ah->config.led_active_high = ath9k_led_active_high == 1;
 
@@ -877,6 +918,7 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	hw->max_rate_tries = 10;
 	hw->sta_data_size = sizeof(struct ath_node);
 	hw->vif_data_size = sizeof(struct ath_vif);
+	hw->txq_data_size = sizeof(struct ath_atx_tid);
 	hw->extra_tx_headroom = 4;
 
 	hw->wiphy->available_antennas_rx = BIT(ah->caps.max_rxchains) - 1;

drivers/net/wireless/ath/ath9k/main.c

@@ -1902,9 +1902,11 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 	bool flush = false;
 	int ret = 0;
 	struct ieee80211_sta *sta = params->sta;
+	struct ath_node *an = (struct ath_node *)sta->drv_priv;
 	enum ieee80211_ampdu_mlme_action action = params->action;
 	u16 tid = params->tid;
 	u16 *ssn = &params->ssn;
+	struct ath_atx_tid *atid;
 
 	mutex_lock(&sc->mutex);
 
@@ -1937,9 +1939,9 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 		ath9k_ps_restore(sc);
 		break;
 	case IEEE80211_AMPDU_TX_OPERATIONAL:
-		ath9k_ps_wakeup(sc);
-		ath_tx_aggr_resume(sc, sta, tid);
-		ath9k_ps_restore(sc);
+		atid = ath_node_to_tid(an, tid);
+		atid->baw_size = IEEE80211_MIN_AMPDU_BUF <<
+			        sta->ht_cap.ampdu_factor;
 		break;
 	default:
 		ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
@@ -2701,4 +2703,5 @@ struct ieee80211_ops ath9k_ops = {
 	.sw_scan_start	    = ath9k_sw_scan_start,
 	.sw_scan_complete   = ath9k_sw_scan_complete,
 	.get_txpower        = ath9k_get_txpower,
+	.wake_tx_queue      = ath9k_wake_tx_queue,
 };

drivers/net/wireless/ath/ath9k/pci.c

@@ -26,7 +26,6 @@ static const struct pci_device_id ath_pci_id_table[] = {
 	{ PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI   */
 	{ PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
 	{ PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI   */
-	{ PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI   */
 
 #ifdef CONFIG_ATH9K_PCOEM
 	/* Mini PCI AR9220 MB92 cards: Compex WLM200NX, Wistron DNMA-92 */
@@ -37,7 +36,7 @@ static const struct pci_device_id ath_pci_id_table[] = {
 	  .driver_data = ATH9K_PCI_LED_ACT_HI },
 #endif
 
-	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
+	{ PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI   */
 
 #ifdef CONFIG_ATH9K_PCOEM
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
@@ -85,7 +84,11 @@ static const struct pci_device_id ath_pci_id_table[] = {
 			 0x10CF, /* Fujitsu */
 			 0x1536),
 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
+#endif
 
+	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
+
+#ifdef CONFIG_ATH9K_PCOEM
 	/* AR9285 card for Asus */
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 			 0x002B,

drivers/net/wireless/ath/main.c

@@ -90,3 +90,10 @@ void ath_printk(const char *level, const struct ath_common* common,
 	va_end(args);
 }
 EXPORT_SYMBOL(ath_printk);
+
+const char *ath_bus_type_strings[] = {
+	[ATH_PCI] = "pci",
+	[ATH_AHB] = "ahb",
+	[ATH_USB] = "usb",
+};
+EXPORT_SYMBOL(ath_bus_type_strings);