Merge tag 'master-2014-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next

John W. Linville says:

====================
pull request: wireless-next 2014-10-03

Please pull tihs batch of updates intended for the 3.18 stream!

For the iwlwifi bits, Emmanuel says:

"I have here a few things that depend on the latest mac80211's changes:
RRM, TPC, Quiet Period etc...  Eyal keeps improving our rate control
and we have a new device ID. This last patch should probably have
gone to wireless.git, but at that stage, I preferred to send it to
-next and CC stable."

For (most of) the Atheros bits, Kalle says:

"The only new feature is testmode support from me. Ben added a new method
to crash the firmware with an assert for debug purposes. As usual, we
have lots of smaller fixes from Michal. Matteo fixed a Kconfig
dependency with debugfs. I fixed some warnings recently added to
checkpatch."

For the NFC bits, Samuel says:

"We've had major updates for TI and ST Microelectronics drivers, and a
few NCI related changes.

For TI's trf7970a driver:

- Target mode support for trf7970a
- Suspend/resume support for trf7970a
- DT properties additions to handle different quirks
- A bunch of fixes for smartphone IOP related issues

For ST Microelectronics' ST21NFCA and ST21NFCB drivers:

- ISO15693 support for st21nfcb
- checkpatch and sparse related warning fixes
- Code cleanups and a few minor fixes

Finally, Marvell added ISO15693 support to the NCI stack, together with a
couple of NCI fixes."

For the Bluetooth bits, Johan says:

"This 3.18 pull request replaces the one I did on Monday ("bluetooth-next
2014-09-22", which hasn't been pulled yet). The additions since the last
request are:

 - SCO connection fix for devices not supporting eSCO
 - Cleanups regarding the SCO establishment logic
 - Remove unnecessary return value from logging functions
 - Header compression fix for 6lowpan
 - Cleanups to the ieee802154/mrf24j40 driver

Here's a copy from previous request that this one replaces:

'
Here are some more patches for 3.18. They include various fixes to the
btusb HCI driver, a fix for LE SMP, as well as adding Jukka to the
MAINTAINERS file for generic 6LoWPAN (as requested by Alexander Aring).

I've held on to this pull request a bit since we were waiting for a SCO
related fix to get sorted out first. However, since the merge window is
getting closer I decided not to wait for it. If we do get the fix sorted
out there'll probably be a second small pull request later this week.
'"

And,

"Unless 3.17 gets delayed this will probably be our last -next pull request for
3.18. We've got:

  - New Marvell hardware supportr
  - Multicast support for 6lowpan
  - Several of 6lowpan fixes & cleanups
  - Fix for a (false-positive) lockdep warning in L2CAP
  - Minor btusb cleanup"

On top of all that comes the usual sort of updates to ath5k, ath9k,
ath10k, brcmfmac, mwifiex, and wil6210.  This time around there are
also a number of rtlwifi updates to enable some new hardware and
to reconcile the in-kernel drivers with some newer releases of the
Realtek vendor drivers.  Also of note is some device tree work for
the bcma bus.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

11 files changed, 339 insertions, 72 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
index 3122b86050a1..80e73a1262be 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
@@ -67,6 +67,7 @@ struct brcmf_bus_dcmd {
  * @txctl: transmit a control request message to dongle.
  * @rxctl: receive a control response message from dongle.
  * @gettxq: obtain a reference of bus transmit queue (optional).
+ * @wowl_config: specify if dongle is configured for wowl when going to suspend
  *
  * This structure provides an abstract interface towards the
  * bus specific driver. For control messages to common driver
@@ -80,6 +81,7 @@ struct brcmf_bus_ops {
 	int (*txctl)(struct device *dev, unsigned char *msg, uint len);
 	int (*rxctl)(struct device *dev, unsigned char *msg, uint len);
 	struct pktq * (*gettxq)(struct device *dev);
+	void (*wowl_config)(struct device *dev, bool enabled);
 };
 
 
@@ -114,6 +116,7 @@ struct brcmf_bus_msgbuf {
  * @dstats: dongle-based statistical data.
  * @dcmd_list: bus/device specific dongle initialization commands.
  * @chip: device identifier of the dongle chip.
+ * @wowl_supported: is wowl supported by bus driver.
  * @chiprev: revision of the dongle chip.
  */
 struct brcmf_bus {
@@ -131,6 +134,7 @@ struct brcmf_bus {
 	u32 chip;
 	u32 chiprev;
 	bool always_use_fws_queue;
+	bool wowl_supported;
 
 	struct brcmf_bus_ops *ops;
 	struct brcmf_bus_msgbuf *msgbuf;
@@ -177,6 +181,13 @@ struct pktq *brcmf_bus_gettxq(struct brcmf_bus *bus)
 	return bus->ops->gettxq(bus->dev);
 }
 
+static inline
+void brcmf_bus_wowl_config(struct brcmf_bus *bus, bool enabled)
+{
+	if (bus->ops->wowl_config)
+		bus->ops->wowl_config(bus->dev, enabled);
+}
+
 static inline bool brcmf_bus_ready(struct brcmf_bus *bus)
 {
 	return bus->state == BRCMF_BUS_LOAD || bus->state == BRCMF_BUS_DATA;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/brcm80211/brcmfmac/feature.c
index 50877e3c5d2f..aed53acef456 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/feature.c
@@ -107,6 +107,8 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
 	struct brcmf_if *ifp = drvr->iflist[0];
 
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MCHAN, "mchan");
+	if (drvr->bus_if->wowl_supported)
+		brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
 
 	/* set chip related quirks */
 	switch (drvr->bus_if->chip) {
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/feature.h b/drivers/net/wireless/brcm80211/brcmfmac/feature.h
index 961d175f8afb..b9a796d0a44d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/feature.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/feature.h
@@ -22,7 +22,8 @@
  * MCHAN: multi-channel for concurrent P2P.
  */
 #define BRCMF_FEAT_LIST \
-	BRCMF_FEAT_DEF(MCHAN)
+	BRCMF_FEAT_DEF(MCHAN) \
+	BRCMF_FEAT_DEF(WOWL)
 /*
  * Quirks:
  *
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/flowring.c b/drivers/net/wireless/brcm80211/brcmfmac/flowring.c
index a1016b811284..1faa929f5fff 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/flowring.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/flowring.c
@@ -354,7 +354,7 @@ struct brcmf_flowring *brcmf_flowring_attach(struct device *dev, u16 nrofrings)
 	struct brcmf_flowring *flow;
 	u32 i;
 
-	flow = kzalloc(sizeof(*flow), GFP_ATOMIC);
+	flow = kzalloc(sizeof(*flow), GFP_KERNEL);
 	if (flow) {
 		flow->dev = dev;
 		flow->nrofrings = nrofrings;
@@ -364,7 +364,7 @@ struct brcmf_flowring *brcmf_flowring_attach(struct device *dev, u16 nrofrings)
 		for (i = 0; i < ARRAY_SIZE(flow->hash); i++)
 			flow->hash[i].ifidx = BRCMF_FLOWRING_INVALID_IFIDX;
 		flow->rings = kcalloc(nrofrings, sizeof(*flow->rings),
-				      GFP_ATOMIC);
+				      GFP_KERNEL);
 		if (!flow->rings) {
 			kfree(flow);
 			flow = NULL;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h
index 2bc68a2137fc..5ff5cd0bb032 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h
@@ -53,6 +53,62 @@
 #define BRCMF_OBSS_COEX_OFF		0
 #define BRCMF_OBSS_COEX_ON		1
 
+/* WOWL bits */
+/* Wakeup on Magic packet: */
+#define WL_WOWL_MAGIC			(1 << 0)
+/* Wakeup on Netpattern */
+#define WL_WOWL_NET			(1 << 1)
+/* Wakeup on loss-of-link due to Disassoc/Deauth: */
+#define WL_WOWL_DIS			(1 << 2)
+/* Wakeup on retrograde TSF: */
+#define WL_WOWL_RETR			(1 << 3)
+/* Wakeup on loss of beacon: */
+#define WL_WOWL_BCN			(1 << 4)
+/* Wakeup after test: */
+#define WL_WOWL_TST			(1 << 5)
+/* Wakeup after PTK refresh: */
+#define WL_WOWL_M1			(1 << 6)
+/* Wakeup after receipt of EAP-Identity Req: */
+#define WL_WOWL_EAPID			(1 << 7)
+/* Wakeind via PME(0) or GPIO(1): */
+#define WL_WOWL_PME_GPIO		(1 << 8)
+/* need tkip phase 1 key to be updated by the driver: */
+#define WL_WOWL_NEEDTKIP1		(1 << 9)
+/* enable wakeup if GTK fails: */
+#define WL_WOWL_GTK_FAILURE		(1 << 10)
+/* support extended magic packets: */
+#define WL_WOWL_EXTMAGPAT		(1 << 11)
+/* support ARP/NS/keepalive offloading: */
+#define WL_WOWL_ARPOFFLOAD		(1 << 12)
+/* read protocol version for EAPOL frames: */
+#define WL_WOWL_WPA2			(1 << 13)
+/* If the bit is set, use key rotaton: */
+#define WL_WOWL_KEYROT			(1 << 14)
+/* If the bit is set, frm received was bcast frame: */
+#define WL_WOWL_BCAST			(1 << 15)
+/* If the bit is set, scan offload is enabled: */
+#define WL_WOWL_SCANOL			(1 << 16)
+/* Wakeup on tcpkeep alive timeout: */
+#define WL_WOWL_TCPKEEP_TIME		(1 << 17)
+/* Wakeup on mDNS Conflict Resolution: */
+#define WL_WOWL_MDNS_CONFLICT		(1 << 18)
+/* Wakeup on mDNS Service Connect: */
+#define WL_WOWL_MDNS_SERVICE		(1 << 19)
+/* tcp keepalive got data: */
+#define WL_WOWL_TCPKEEP_DATA		(1 << 20)
+/* Firmware died in wowl mode: */
+#define WL_WOWL_FW_HALT			(1 << 21)
+/* Enable detection of radio button changes: */
+#define WL_WOWL_ENAB_HWRADIO		(1 << 22)
+/* Offloads detected MIC failure(s): */
+#define WL_WOWL_MIC_FAIL		(1 << 23)
+/* Wakeup in Unassociated state (Net/Magic Pattern): */
+#define WL_WOWL_UNASSOC			(1 << 24)
+/* Wakeup if received matched secured pattern: */
+#define WL_WOWL_SECURE			(1 << 25)
+/* Link Down indication in WoWL mode: */
+#define WL_WOWL_LINKDOWN		(1 << 31)
+
 /* join preference types for join_pref iovar */
 enum brcmf_join_pref_types {
 	BRCMF_JOIN_PREF_RSSI = 1,
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index d42f7d04b65f..183f08d7fc8c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1636,7 +1636,7 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 	if (!signal_len)
 		return 0;
 	/* if flow control disabled, skip to packet data and leave */
-	if (!fws->fw_signals) {
+	if ((!fws) || (!fws->fw_signals)) {
 		skb_pull(skb, signal_len);
 		return 0;
 	}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
index 8f8b9373de95..11cc051f97cd 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
@@ -208,6 +208,14 @@ struct msgbuf_flowring_flush_resp {
 	__le32				rsvd0[3];
 };
 
+struct brcmf_msgbuf_work_item {
+	struct list_head queue;
+	u32 flowid;
+	int ifidx;
+	u8 sa[ETH_ALEN];
+	u8 da[ETH_ALEN];
+};
+
 struct brcmf_msgbuf {
 	struct brcmf_pub *drvr;
 
@@ -230,7 +238,7 @@ struct brcmf_msgbuf {
 	dma_addr_t ioctbuf_handle;
 	u32 ioctbuf_phys_hi;
 	u32 ioctbuf_phys_lo;
-	u32 ioctl_resp_status;
+	int ioctl_resp_status;
 	u32 ioctl_resp_ret_len;
 	u32 ioctl_resp_pktid;
 
@@ -248,6 +256,10 @@ struct brcmf_msgbuf {
 	struct work_struct txflow_work;
 	unsigned long *flow_map;
 	unsigned long *txstatus_done_map;
+
+	struct work_struct flowring_work;
+	spinlock_t flowring_work_lock;
+	struct list_head work_queue;
 };
 
 struct brcmf_msgbuf_pktid {
@@ -284,11 +296,11 @@ brcmf_msgbuf_init_pktids(u32 nr_array_entries,
 	struct brcmf_msgbuf_pktid *array;
 	struct brcmf_msgbuf_pktids *pktids;
 
-	array = kcalloc(nr_array_entries, sizeof(*array), GFP_ATOMIC);
+	array = kcalloc(nr_array_entries, sizeof(*array), GFP_KERNEL);
 	if (!array)
 		return NULL;
 
-	pktids = kzalloc(sizeof(*pktids), GFP_ATOMIC);
+	pktids = kzalloc(sizeof(*pktids), GFP_KERNEL);
 	if (!pktids) {
 		kfree(array);
 		return NULL;
@@ -544,11 +556,29 @@ brcmf_msgbuf_remove_flowring(struct brcmf_msgbuf *msgbuf, u16 flowid)
 }
 
 
-static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx,
-					struct sk_buff *skb)
+static struct brcmf_msgbuf_work_item *
+brcmf_msgbuf_dequeue_work(struct brcmf_msgbuf *msgbuf)
+{
+	struct brcmf_msgbuf_work_item *work = NULL;
+	ulong flags;
+
+	spin_lock_irqsave(&msgbuf->flowring_work_lock, flags);
+	if (!list_empty(&msgbuf->work_queue)) {
+		work = list_first_entry(&msgbuf->work_queue,
+					struct brcmf_msgbuf_work_item, queue);
+		list_del(&work->queue);
+	}
+	spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags);
+
+	return work;
+}
+
+
+static u32
+brcmf_msgbuf_flowring_create_worker(struct brcmf_msgbuf *msgbuf,
+				    struct brcmf_msgbuf_work_item *work)
 {
 	struct msgbuf_tx_flowring_create_req *create;
-	struct ethhdr *eh = (struct ethhdr *)(skb->data);
 	struct brcmf_commonring *commonring;
 	void *ret_ptr;
 	u32 flowid;
@@ -557,16 +587,11 @@ static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx,
 	long long address;
 	int err;
 
-	flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest,
-				       skb->priority, ifidx);
-	if (flowid == BRCMF_FLOWRING_INVALID_ID)
-		return flowid;
-
+	flowid = work->flowid;
 	dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE;
-
 	dma_buf = dma_alloc_coherent(msgbuf->drvr->bus_if->dev, dma_sz,
 				     &msgbuf->flowring_dma_handle[flowid],
-				     GFP_ATOMIC);
+				     GFP_KERNEL);
 	if (!dma_buf) {
 		brcmf_err("dma_alloc_coherent failed\n");
 		brcmf_flowring_delete(msgbuf->flow, flowid);
@@ -589,13 +614,13 @@ static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx,
 
 	create = (struct msgbuf_tx_flowring_create_req *)ret_ptr;
 	create->msg.msgtype = MSGBUF_TYPE_FLOW_RING_CREATE;
-	create->msg.ifidx = ifidx;
+	create->msg.ifidx = work->ifidx;
 	create->msg.request_id = 0;
 	create->tid = brcmf_flowring_tid(msgbuf->flow, flowid);
 	create->flow_ring_id = cpu_to_le16(flowid +
 					   BRCMF_NROF_H2D_COMMON_MSGRINGS);
-	memcpy(create->sa, eh->h_source, ETH_ALEN);
-	memcpy(create->da, eh->h_dest, ETH_ALEN);
+	memcpy(create->sa, work->sa, ETH_ALEN);
+	memcpy(create->da, work->da, ETH_ALEN);
 	address = (long long)(long)msgbuf->flowring_dma_handle[flowid];
 	create->flow_ring_addr.high_addr = cpu_to_le32(address >> 32);
 	create->flow_ring_addr.low_addr = cpu_to_le32(address & 0xffffffff);
@@ -603,7 +628,7 @@ static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx,
 	create->len_item = cpu_to_le16(BRCMF_H2D_TXFLOWRING_ITEMSIZE);
 
 	brcmf_dbg(MSGBUF, "Send Flow Create Req flow ID %d for peer %pM prio %d ifindex %d\n",
-		  flowid, eh->h_dest, create->tid, ifidx);
+		  flowid, work->da, create->tid, work->ifidx);
 
 	err = brcmf_commonring_write_complete(commonring);
 	brcmf_commonring_unlock(commonring);
@@ -617,6 +642,53 @@ static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx,
 }
 
 
+static void brcmf_msgbuf_flowring_worker(struct work_struct *work)
+{
+	struct brcmf_msgbuf *msgbuf;
+	struct brcmf_msgbuf_work_item *create;
+
+	msgbuf = container_of(work, struct brcmf_msgbuf, flowring_work);
+
+	while ((create = brcmf_msgbuf_dequeue_work(msgbuf))) {
+		brcmf_msgbuf_flowring_create_worker(msgbuf, create);
+		kfree(create);
+	}
+}
+
+
+static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx,
+					struct sk_buff *skb)
+{
+	struct brcmf_msgbuf_work_item *create;
+	struct ethhdr *eh = (struct ethhdr *)(skb->data);
+	u32 flowid;
+	ulong flags;
+
+	create = kzalloc(sizeof(*create), GFP_ATOMIC);
+	if (create == NULL)
+		return BRCMF_FLOWRING_INVALID_ID;
+
+	flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest,
+				       skb->priority, ifidx);
+	if (flowid == BRCMF_FLOWRING_INVALID_ID) {
+		kfree(create);
+		return flowid;
+	}
+
+	create->flowid = flowid;
+	create->ifidx = ifidx;
+	memcpy(create->sa, eh->h_source, ETH_ALEN);
+	memcpy(create->da, eh->h_dest, ETH_ALEN);
+
+	spin_lock_irqsave(&msgbuf->flowring_work_lock, flags);
+	list_add_tail(&create->queue, &msgbuf->work_queue);
+	spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags);
+	schedule_work(&msgbuf->flowring_work);
+
+	return flowid;
+}
+
+
 static void brcmf_msgbuf_txflow(struct brcmf_msgbuf *msgbuf, u8 flowid)
 {
 	struct brcmf_flowring *flow = msgbuf->flow;
@@ -767,7 +839,8 @@ brcmf_msgbuf_process_ioctl_complete(struct brcmf_msgbuf *msgbuf, void *buf)
 
 	ioctl_resp = (struct msgbuf_ioctl_resp_hdr *)buf;
 
-	msgbuf->ioctl_resp_status = le16_to_cpu(ioctl_resp->compl_hdr.status);
+	msgbuf->ioctl_resp_status =
+			(s16)le16_to_cpu(ioctl_resp->compl_hdr.status);
 	msgbuf->ioctl_resp_ret_len = le16_to_cpu(ioctl_resp->resp_len);
 	msgbuf->ioctl_resp_pktid = le32_to_cpu(ioctl_resp->msg.request_id);
 
@@ -1271,7 +1344,7 @@ int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
 	u32 count;
 
 	if_msgbuf = drvr->bus_if->msgbuf;
-	msgbuf = kzalloc(sizeof(*msgbuf), GFP_ATOMIC);
+	msgbuf = kzalloc(sizeof(*msgbuf), GFP_KERNEL);
 	if (!msgbuf)
 		goto fail;
 
@@ -1282,11 +1355,11 @@ int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
 	}
 	INIT_WORK(&msgbuf->txflow_work, brcmf_msgbuf_txflow_worker);
 	count = BITS_TO_LONGS(if_msgbuf->nrof_flowrings);
-	msgbuf->flow_map = kzalloc(count, GFP_ATOMIC);
+	msgbuf->flow_map = kzalloc(count, GFP_KERNEL);
 	if (!msgbuf->flow_map)
 		goto fail;
 
-	msgbuf->txstatus_done_map = kzalloc(count, GFP_ATOMIC);
+	msgbuf->txstatus_done_map = kzalloc(count, GFP_KERNEL);
 	if (!msgbuf->txstatus_done_map)
 		goto fail;
 
@@ -1294,7 +1367,7 @@ int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
 	msgbuf->ioctbuf = dma_alloc_coherent(drvr->bus_if->dev,
 					     BRCMF_TX_IOCTL_MAX_MSG_SIZE,
 					     &msgbuf->ioctbuf_handle,
-					     GFP_ATOMIC);
+					     GFP_KERNEL);
 	if (!msgbuf->ioctbuf)
 		goto fail;
 	address = (long long)(long)msgbuf->ioctbuf_handle;
@@ -1317,7 +1390,7 @@ int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
 	msgbuf->flowrings = (struct brcmf_commonring **)if_msgbuf->flowrings;
 	msgbuf->nrof_flowrings = if_msgbuf->nrof_flowrings;
 	msgbuf->flowring_dma_handle = kzalloc(msgbuf->nrof_flowrings *
-		sizeof(*msgbuf->flowring_dma_handle), GFP_ATOMIC);
+		sizeof(*msgbuf->flowring_dma_handle), GFP_KERNEL);
 	if (!msgbuf->flowring_dma_handle)
 		goto fail;
 
@@ -1357,6 +1430,10 @@ int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
 	brcmf_msgbuf_rxbuf_event_post(msgbuf);
 	brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf);
 
+	INIT_WORK(&msgbuf->flowring_work, brcmf_msgbuf_flowring_worker);
+	spin_lock_init(&msgbuf->flowring_work_lock);
+	INIT_LIST_HEAD(&msgbuf->work_queue);
+
 	return 0;
 
 fail:
@@ -1379,11 +1456,19 @@ fail:
 void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr)
 {
 	struct brcmf_msgbuf *msgbuf;
+	struct brcmf_msgbuf_work_item *work;
 
 	brcmf_dbg(TRACE, "Enter\n");
 	if (drvr->proto->pd) {
 		msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd;
-
+		cancel_work_sync(&msgbuf->flowring_work);
+		while (!list_empty(&msgbuf->work_queue)) {
+			work = list_first_entry(&msgbuf->work_queue,
+						struct brcmf_msgbuf_work_item,
+						queue);
+			list_del(&work->queue);
+			kfree(work);
+		}
 		kfree(msgbuf->flow_map);
 		kfree(msgbuf->txstatus_done_map);
 		if (msgbuf->txflow_wq)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index 1d78a91db594..d54c58a32faa 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -440,8 +440,11 @@ static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac)
 
 	/* In case of COB type, firmware has default mac address
 	 * After Initializing firmware, we have to set current mac address to
-	 * firmware for P2P device address
+	 * firmware for P2P device address. This must be done with discovery
+	 * disabled.
 	 */
+	brcmf_fil_iovar_int_set(ifp, "p2p_disc", 0);
+
 	ret = brcmf_fil_iovar_data_set(ifp, "p2p_da_override", p2p_mac,
 				       ETH_ALEN);
 	if (ret)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/brcm80211/brcmfmac/pcie.c
index e5101b287e4e..8c0632ec9f7a 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/pcie.c
@@ -165,6 +165,8 @@ enum brcmf_pcie_state {
 
 #define BRCMF_H2D_HOST_D3_INFORM		0x00000001
 #define BRCMF_H2D_HOST_DS_ACK			0x00000002
+#define BRCMF_H2D_HOST_D0_INFORM_IN_USE		0x00000008
+#define BRCMF_H2D_HOST_D0_INFORM		0x00000010
 
 #define BRCMF_PCIE_MBDATA_TIMEOUT		2000
 
@@ -243,6 +245,7 @@ struct brcmf_pciedev_info {
 	wait_queue_head_t mbdata_resp_wait;
 	bool mbdata_completed;
 	bool irq_allocated;
+	bool wowl_enabled;
 };
 
 struct brcmf_pcie_ringbuf {
@@ -537,7 +540,7 @@ static int brcmf_pcie_exit_download_state(struct brcmf_pciedev_info *devinfo,
 }
 
 
-static void
+static int
 brcmf_pcie_send_mb_data(struct brcmf_pciedev_info *devinfo, u32 htod_mb_data)
 {
 	struct brcmf_pcie_shared_info *shared;
@@ -558,13 +561,15 @@ brcmf_pcie_send_mb_data(struct brcmf_pciedev_info *devinfo, u32 htod_mb_data)
 		msleep(10);
 		i++;
 		if (i > 100)
-			break;
+			return -EIO;
 		cur_htod_mb_data = brcmf_pcie_read_tcm32(devinfo, addr);
 	}
 
 	brcmf_pcie_write_tcm32(devinfo, addr, htod_mb_data);
 	pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1);
 	pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1);
+
+	return 0;
 }
 
 
@@ -1229,11 +1234,27 @@ static int brcmf_pcie_rx_ctlpkt(struct device *dev, unsigned char *msg,
 }
 
 
+static void brcmf_pcie_wowl_config(struct device *dev, bool enabled)
+{
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie;
+	struct brcmf_pciedev_info *devinfo = buspub->devinfo;
+
+	brcmf_dbg(PCIE, "Configuring WOWL, enabled=%d\n", enabled);
+	devinfo->wowl_enabled = enabled;
+	if (enabled)
+		device_set_wakeup_enable(&devinfo->pdev->dev, true);
+	else
+		device_set_wakeup_enable(&devinfo->pdev->dev, false);
+}
+
+
 static struct brcmf_bus_ops brcmf_pcie_bus_ops = {
 	.txdata = brcmf_pcie_tx,
 	.stop = brcmf_pcie_down,
 	.txctl = brcmf_pcie_tx_ctlpkt,
 	.rxctl = brcmf_pcie_rx_ctlpkt,
+	.wowl_config = brcmf_pcie_wowl_config,
 };
 
 
@@ -1668,6 +1689,7 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	bus->ops = &brcmf_pcie_bus_ops;
 	bus->proto_type = BRCMF_PROTO_MSGBUF;
 	bus->chip = devinfo->coreid;
+	bus->wowl_supported = pci_pme_capable(pdev, PCI_D3hot);
 	dev_set_drvdata(&pdev->dev, bus);
 
 	ret = brcmf_pcie_get_fwnames(devinfo);
@@ -1759,36 +1781,62 @@ static int brcmf_pcie_suspend(struct pci_dev *pdev, pm_message_t state)
 		brcmf_err("Timeout on response for entering D3 substate\n");
 		return -EIO;
 	}
-	brcmf_pcie_release_irq(devinfo);
+	brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_D0_INFORM_IN_USE);
 
 	err = pci_save_state(pdev);
-	if (err) {
+	if (err)
 		brcmf_err("pci_save_state failed, err=%d\n", err);
-		return err;
+	if ((err) || (!devinfo->wowl_enabled)) {
+		brcmf_chip_detach(devinfo->ci);
+		devinfo->ci = NULL;
+		brcmf_pcie_remove(pdev);
+		return 0;
 	}
 
-	brcmf_chip_detach(devinfo->ci);
-	devinfo->ci = NULL;
-
-	brcmf_pcie_remove(pdev);
-
 	return pci_prepare_to_sleep(pdev);
 }
 
-
 static int brcmf_pcie_resume(struct pci_dev *pdev)
 {
+	struct brcmf_pciedev_info *devinfo;
+	struct brcmf_bus *bus;
 	int err;
 
-	brcmf_dbg(PCIE, "Enter, pdev=%p\n", pdev);
+	bus = dev_get_drvdata(&pdev->dev);
+	brcmf_dbg(PCIE, "Enter, pdev=%p, bus=%p\n", pdev, bus);
 
 	err = pci_set_power_state(pdev, PCI_D0);
 	if (err) {
 		brcmf_err("pci_set_power_state failed, err=%d\n", err);
-		return err;
+		goto cleanup;
 	}
 	pci_restore_state(pdev);
+	pci_enable_wake(pdev, PCI_D3hot, false);
+	pci_enable_wake(pdev, PCI_D3cold, false);
+
+	/* Check if device is still up and running, if so we are ready */
+	if (bus) {
+		devinfo = bus->bus_priv.pcie->devinfo;
+		if (brcmf_pcie_read_reg32(devinfo,
+					  BRCMF_PCIE_PCIE2REG_INTMASK) != 0) {
+			if (brcmf_pcie_send_mb_data(devinfo,
+						    BRCMF_H2D_HOST_D0_INFORM))
+				goto cleanup;
+			brcmf_dbg(PCIE, "Hot resume, continue....\n");
+			brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2);
+			brcmf_bus_change_state(bus, BRCMF_BUS_DATA);
+			brcmf_pcie_intr_enable(devinfo);
+			return 0;
+		}
+	}
 
+cleanup:
+	if (bus) {
+		devinfo = bus->bus_priv.pcie->devinfo;
+		brcmf_chip_detach(devinfo->ci);
+		devinfo->ci = NULL;
+		brcmf_pcie_remove(pdev);
+	}
 	err = brcmf_pcie_probe(pdev, NULL);
 	if (err)
 		brcmf_err("probe after resume failed, err=%d\n", err);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 1db11b00001c..28fa25b509db 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -37,6 +37,7 @@
 #include "fwil.h"
 #include "proto.h"
 #include "vendor.h"
+#include "dhd_bus.h"
 
 #define BRCMF_SCAN_IE_LEN_MAX		2048
 #define BRCMF_PNO_VERSION		2
@@ -2429,7 +2430,7 @@ static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
 	s32 err = 0;
 	int i;
 
-	bss_list = cfg->bss_list;
+	bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
 	if (bss_list->count != 0 &&
 	    bss_list->version != BRCMF_BSS_INFO_VERSION) {
 		brcmf_err("Version %d != WL_BSS_INFO_VERSION\n",
@@ -2605,6 +2606,7 @@ static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
 			container_of(work, struct brcmf_cfg80211_info,
 				     escan_timeout_work);
 
+	brcmf_inform_bss(cfg);
 	brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
 }
 
@@ -2743,12 +2745,9 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 		if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
 			goto exit;
 		if (cfg->scan_request) {
-			cfg->bss_list = (struct brcmf_scan_results *)
-				cfg->escan_info.escan_buf;
 			brcmf_inform_bss(cfg);
 			aborted = status != BRCMF_E_STATUS_SUCCESS;
-			brcmf_notify_escan_complete(cfg, ifp, aborted,
-						    false);
+			brcmf_notify_escan_complete(cfg, ifp, aborted, false);
 		} else
 			brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
 				  status);
@@ -2782,50 +2781,91 @@ static __always_inline void brcmf_delay(u32 ms)
 
 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
 {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct net_device *ndev = cfg_to_ndev(cfg);
+	struct brcmf_if *ifp = netdev_priv(ndev);
+
 	brcmf_dbg(TRACE, "Enter\n");
 
+	if (cfg->wowl_enabled) {
+		brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM,
+				      cfg->pre_wowl_pmmode);
+		brcmf_fil_iovar_data_set(ifp, "wowl_pattern", "clr", 4);
+		brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0);
+		cfg->wowl_enabled = false;
+	}
 	return 0;
 }
 
+static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg,
+				 struct brcmf_if *ifp,
+				 struct cfg80211_wowlan *wowl)
+{
+	u32 wowl_config;
+
+	brcmf_dbg(TRACE, "Suspend, wowl config.\n");
+
+	brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->pre_wowl_pmmode);
+	brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX);
+
+	wowl_config = 0;
+	if (wowl->disconnect)
+		wowl_config |= WL_WOWL_DIS | WL_WOWL_BCN | WL_WOWL_RETR;
+		/* Note: if "wowl" target and not "wowlpf" then wowl_bcn_loss
+		 * should be configured. This paramater is not supported by
+		 * wowlpf.
+		 */
+	if (wowl->magic_pkt)
+		wowl_config |= WL_WOWL_MAGIC;
+	brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config);
+	brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1);
+	brcmf_bus_wowl_config(cfg->pub->bus_if, true);
+	cfg->wowl_enabled = true;
+}
+
 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
-				  struct cfg80211_wowlan *wow)
+				  struct cfg80211_wowlan *wowl)
 {
 	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct net_device *ndev = cfg_to_ndev(cfg);
+	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_cfg80211_vif *vif;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
-	/*
-	 * if the primary net_device is not READY there is nothing
+	/* if the primary net_device is not READY there is nothing
 	 * we can do but pray resume goes smoothly.
 	 */
-	vif = ((struct brcmf_if *)netdev_priv(ndev))->vif;
-	if (!check_vif_up(vif))
+	if (!check_vif_up(ifp->vif))
 		goto exit;
 
-	list_for_each_entry(vif, &cfg->vif_list, list) {
-		if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
-			continue;
-		/*
-		 * While going to suspend if associated with AP disassociate
-		 * from AP to save power while system is in suspended state
-		 */
-		brcmf_link_down(vif);
-
-		/* Make sure WPA_Supplicant receives all the event
-		 * generated due to DISASSOC call to the fw to keep
-		 * the state fw and WPA_Supplicant state consistent
-		 */
-		brcmf_delay(500);
-	}
-
 	/* end any scanning */
 	if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
 		brcmf_abort_scanning(cfg);
 
-	/* Turn off watchdog timer */
-	brcmf_set_mpc(netdev_priv(ndev), 1);
+	if (wowl == NULL) {
+		brcmf_bus_wowl_config(cfg->pub->bus_if, false);
+		list_for_each_entry(vif, &cfg->vif_list, list) {
+			if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state))
+				continue;
+			/* While going to suspend if associated with AP
+			 * disassociate from AP to save power while system is
+			 * in suspended state
+			 */
+			brcmf_link_down(vif);
+			/* Make sure WPA_Supplicant receives all the event
+			 * generated due to DISASSOC call to the fw to keep
+			 * the state fw and WPA_Supplicant state consistent
+			 */
+			brcmf_delay(500);
+		}
+		/* Configure MPC */
+		brcmf_set_mpc(ifp, 1);
+
+	} else {
+		/* Configure WOWL paramaters */
+		brcmf_configure_wowl(cfg, ifp, wowl);
+	}
 
 exit:
 	brcmf_dbg(TRACE, "Exit\n");
@@ -5400,6 +5440,21 @@ static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
 	wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
 }
 
+
+#ifdef CONFIG_PM
+static const struct wiphy_wowlan_support brcmf_wowlan_support = {
+	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
+};
+#endif
+
+static void brcmf_wiphy_wowl_params(struct wiphy *wiphy)
+{
+#ifdef CONFIG_PM
+	/* wowl settings */
+	wiphy->wowlan = &brcmf_wowlan_support;
+#endif
+}
+
 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
 {
 	struct ieee80211_iface_combination ifc_combo;
@@ -5437,6 +5492,9 @@ static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
 	wiphy->vendor_commands = brcmf_vendor_cmds;
 	wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
 
+	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL))
+		brcmf_wiphy_wowl_params(wiphy);
+
 	return brcmf_setup_wiphybands(wiphy);
 }
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
index f9fb10998e79..6abf94e41d3d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
@@ -35,7 +35,7 @@
 #define WL_SCAN_PASSIVE_TIME		120
 
 #define WL_ESCAN_BUF_SIZE		(1024 * 64)
-#define WL_ESCAN_TIMER_INTERVAL_MS	8000 /* E-Scan timeout */
+#define WL_ESCAN_TIMER_INTERVAL_MS	10000 /* E-Scan timeout */
 
 #define WL_ESCAN_ACTION_START		1
 #define WL_ESCAN_ACTION_CONTINUE	2
@@ -363,6 +363,8 @@ struct brcmf_cfg80211_vif_event {
  * @vif_list: linked list of vif instances.
  * @vif_cnt: number of vif instances.
  * @vif_event: vif event signalling.
+ * @wowl_enabled; set during suspend, is wowl used.
+ * @pre_wowl_pmmode: intermediate storage of pm mode during wowl.
  */
 struct brcmf_cfg80211_info {
 	struct wiphy *wiphy;
@@ -371,7 +373,6 @@ struct brcmf_cfg80211_info {
 	struct brcmf_btcoex_info *btcoex;
 	struct cfg80211_scan_request *scan_request;
 	struct mutex usr_sync;
-	struct brcmf_scan_results *bss_list;
 	struct brcmf_cfg80211_scan_req scan_req_int;
 	struct wl_cfg80211_bss_info *bss_info;
 	struct brcmf_cfg80211_ie ie;
@@ -397,6 +398,8 @@ struct brcmf_cfg80211_info {
 	struct brcmf_cfg80211_vif_event vif_event;
 	struct completion vif_disabled;
 	struct brcmu_d11inf d11inf;
+	bool wowl_enabled;
+	u32 pre_wowl_pmmode;
 };
 
 /**