Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Reasonably busy this cycle, but perhaps not as busy as in the 4.12
  merge window:

   1) Several optimizations for UDP processing under high load from
      Paolo Abeni.

   2) Support pacing internally in TCP when using the sch_fq packet
      scheduler for this is not practical. From Eric Dumazet.

   3) Support mutliple filter chains per qdisc, from Jiri Pirko.

   4) Move to 1ms TCP timestamp clock, from Eric Dumazet.

   5) Add batch dequeueing to vhost_net, from Jason Wang.

   6) Flesh out more completely SCTP checksum offload support, from
      Davide Caratti.

   7) More plumbing of extended netlink ACKs, from David Ahern, Pablo
      Neira Ayuso, and Matthias Schiffer.

   8) Add devlink support to nfp driver, from Simon Horman.

   9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa
      Prabhu.

  10) Add stack depth tracking to BPF verifier and use this information
      in the various eBPF JITs. From Alexei Starovoitov.

  11) Support XDP on qed device VFs, from Yuval Mintz.

  12) Introduce BPF PROG ID for better introspection of installed BPF
      programs. From Martin KaFai Lau.

  13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann.

  14) For loads, allow narrower accesses in bpf verifier checking, from
      Yonghong Song.

  15) Support MIPS in the BPF selftests and samples infrastructure, the
      MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David
      Daney.

  16) Support kernel based TLS, from Dave Watson and others.

  17) Remove completely DST garbage collection, from Wei Wang.

  18) Allow installing TCP MD5 rules using prefixes, from Ivan
      Delalande.

  19) Add XDP support to Intel i40e driver, from Björn Töpel

  20) Add support for TC flower offload in nfp driver, from Simon
      Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub
      Kicinski, and Bert van Leeuwen.

  21) IPSEC offloading support in mlx5, from Ilan Tayari.

  22) Add HW PTP support to macb driver, from Rafal Ozieblo.

  23) Networking refcount_t conversions, From Elena Reshetova.

  24) Add sock_ops support to BPF, from Lawrence Brako. This is useful
      for tuning the TCP sockopt settings of a group of applications,
      currently via CGROUPs"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits)
  net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap
  dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap
  cxgb4: Support for get_ts_info ethtool method
  cxgb4: Add PTP Hardware Clock (PHC) support
  cxgb4: time stamping interface for PTP
  nfp: default to chained metadata prepend format
  nfp: remove legacy MAC address lookup
  nfp: improve order of interfaces in breakout mode
  net: macb: remove extraneous return when MACB_EXT_DESC is defined
  bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case
  bpf: fix return in load_bpf_file
  mpls: fix rtm policy in mpls_getroute
  net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_route.refcount from atomic_t to refcount_t
  net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t
  net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t
  net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t
  ...

16 files changed, 870 insertions, 145 deletions

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
index 9b970dc2b922..984c1d0560b1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
@@ -108,12 +108,14 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
 	int ret = 0;
 	u8 data;
 	u32 addr, gpiocontrol;
-	unsigned long flags;
 
 	pdata = &sdiodev->settings->bus.sdio;
 	if (pdata->oob_irq_supported) {
 		brcmf_dbg(SDIO, "Enter, register OOB IRQ %d\n",
 			  pdata->oob_irq_nr);
+		spin_lock_init(&sdiodev->irq_en_lock);
+		sdiodev->irq_en = true;
+
 		ret = request_irq(pdata->oob_irq_nr, brcmf_sdiod_oob_irqhandler,
 				  pdata->oob_irq_flags, "brcmf_oob_intr",
 				  &sdiodev->func[1]->dev);
@@ -122,10 +124,6 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
 			return ret;
 		}
 		sdiodev->oob_irq_requested = true;
-		spin_lock_init(&sdiodev->irq_en_lock);
-		spin_lock_irqsave(&sdiodev->irq_en_lock, flags);
-		sdiodev->irq_en = true;
-		spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags);
 
 		ret = enable_irq_wake(pdata->oob_irq_nr);
 		if (ret != 0) {
@@ -706,7 +704,7 @@ done:
 int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
 			   struct sk_buff_head *pktq, uint totlen)
 {
-	struct sk_buff *glom_skb;
+	struct sk_buff *glom_skb = NULL;
 	struct sk_buff *skb;
 	u32 addr = sdiodev->sbwad;
 	int err = 0;
@@ -727,10 +725,8 @@ int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
 			return -ENOMEM;
 		err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr,
 					 glom_skb);
-		if (err) {
-			brcmu_pkt_buf_free_skb(glom_skb);
+		if (err)
 			goto done;
-		}
 
 		skb_queue_walk(pktq, skb) {
 			memcpy(skb->data, glom_skb->data, skb->len);
@@ -741,6 +737,7 @@ int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
 					    pktq);
 
 done:
+	brcmu_pkt_buf_free_skb(glom_skb);
 	return err;
 }
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c
index 14a70d4b4e86..3559fb5b8fb0 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/btcoex.c
@@ -380,9 +380,7 @@ int brcmf_btcoex_attach(struct brcmf_cfg80211_info *cfg)
 	/* Set up timer for BT  */
 	btci->timer_on = false;
 	btci->timeout = BRCMF_BTCOEX_OPPR_WIN_TIME;
-	init_timer(&btci->timer);
-	btci->timer.data = (ulong)btci;
-	btci->timer.function = brcmf_btcoex_timerfunc;
+	setup_timer(&btci->timer, brcmf_btcoex_timerfunc, (ulong)btci);
 	btci->cfg = cfg;
 	btci->saved_regs_part1 = false;
 	btci->saved_regs_part2 = false;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
index b55c3293c4b4..163ddc49f951 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
@@ -113,6 +113,17 @@ struct brcmf_bus_msgbuf {
 
 
 /**
+ * struct brcmf_bus_stats - bus statistic counters.
+ *
+ * @pktcowed: packets cowed for extra headroom/unorphan.
+ * @pktcow_failed: packets dropped due to failed cow-ing.
+ */
+struct brcmf_bus_stats {
+	atomic_t pktcowed;
+	atomic_t pktcow_failed;
+};
+
+/**
  * struct brcmf_bus - interface structure between common and bus layer
  *
  * @bus_priv: pointer to private bus device.
@@ -120,11 +131,10 @@ struct brcmf_bus_msgbuf {
  * @dev: device pointer of bus device.
  * @drvr: public driver information.
  * @state: operational state of the bus interface.
+ * @stats: statistics shared between common and bus layer.
  * @maxctl: maximum size for rxctl request message.
- * @tx_realloc: number of tx packets realloced for headroom.
- * @dstats: dongle-based statistical data.
- * @dcmd_list: bus/device specific dongle initialization commands.
  * @chip: device identifier of the dongle chip.
+ * @always_use_fws_queue: bus wants use queue also when fwsignal is inactive.
  * @wowl_supported: is wowl supported by bus driver.
  * @chiprev: revision of the dongle chip.
  */
@@ -138,8 +148,8 @@ struct brcmf_bus {
 	struct device *dev;
 	struct brcmf_pub *drvr;
 	enum brcmf_bus_state state;
+	struct brcmf_bus_stats stats;
 	uint maxctl;
-	unsigned long tx_realloc;
 	u32 chip;
 	u32 chiprev;
 	bool always_use_fws_queue;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 617199c0e5a0..dcde596c9eb9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -625,6 +625,7 @@ struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name,
 	err = brcmf_net_attach(ifp, true);
 	if (err) {
 		brcmf_err("Registering netdevice failed\n");
+		free_netdev(ifp->ndev);
 		goto fail;
 	}
 
@@ -719,6 +720,8 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 {
 	struct brcmf_scan_params_le params_le;
 	struct cfg80211_scan_request *scan_request;
+	u64 reqid;
+	u32 bucket;
 	s32 err = 0;
 
 	brcmf_dbg(SCAN, "Enter\n");
@@ -749,7 +752,7 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 		err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
 					     &params_le, sizeof(params_le));
 		if (err)
-			brcmf_err("Scan abort  failed\n");
+			brcmf_err("Scan abort failed\n");
 	}
 
 	brcmf_scan_config_mpc(ifp, 1);
@@ -758,11 +761,21 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 	 * e-scan can be initiated internally
 	 * which takes precedence.
 	 */
-	if (cfg->internal_escan) {
-		brcmf_dbg(SCAN, "scheduled scan completed\n");
-		cfg->internal_escan = false;
-		if (!aborted)
-			cfg80211_sched_scan_results(cfg_to_wiphy(cfg), 0);
+	if (cfg->int_escan_map) {
+		brcmf_dbg(SCAN, "scheduled scan completed (%x)\n",
+			  cfg->int_escan_map);
+		while (cfg->int_escan_map) {
+			bucket = __ffs(cfg->int_escan_map);
+			cfg->int_escan_map &= ~BIT(bucket);
+			reqid = brcmf_pno_find_reqid_by_bucket(cfg->pno,
+							       bucket);
+			if (!aborted) {
+				brcmf_dbg(SCAN, "report results: reqid=%llu\n",
+					  reqid);
+				cfg80211_sched_scan_results(cfg_to_wiphy(cfg),
+							    reqid);
+			}
+		}
 	} else if (scan_request) {
 		struct cfg80211_scan_info info = {
 			.aborted = aborted,
@@ -1011,7 +1024,7 @@ static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
 			if (!ssid_le.SSID_len)
 				brcmf_dbg(SCAN, "%d: Broadcast scan\n", i);
 			else
-				brcmf_dbg(SCAN, "%d: scan for  %s size =%d\n",
+				brcmf_dbg(SCAN, "%d: scan for  %.32s size=%d\n",
 					  i, ssid_le.SSID, ssid_le.SSID_len);
 			memcpy(ptr, &ssid_le, sizeof(ssid_le));
 			ptr += sizeof(ssid_le);
@@ -1344,6 +1357,27 @@ static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e)
 	return reason;
 }
 
+static int brcmf_set_pmk(struct brcmf_if *ifp, const u8 *pmk_data, u16 pmk_len)
+{
+	struct brcmf_wsec_pmk_le pmk;
+	int i, err;
+
+	/* convert to firmware key format */
+	pmk.key_len = cpu_to_le16(pmk_len << 1);
+	pmk.flags = cpu_to_le16(BRCMF_WSEC_PASSPHRASE);
+	for (i = 0; i < pmk_len; i++)
+		snprintf(&pmk.key[2 * i], 3, "%02x", pmk_data[i]);
+
+	/* store psk in firmware */
+	err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_WSEC_PMK,
+				     &pmk, sizeof(pmk));
+	if (err < 0)
+		brcmf_err("failed to change PSK in firmware (len=%u)\n",
+			  pmk_len);
+
+	return err;
+}
+
 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason)
 {
 	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
@@ -1366,6 +1400,10 @@ static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason)
 	clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
 	clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
 	brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
+	if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_NONE) {
+		brcmf_set_pmk(vif->ifp, NULL, 0);
+		vif->profile.use_fwsup = BRCMF_PROFILE_FWSUP_NONE;
+	}
 	brcmf_dbg(TRACE, "Exit\n");
 }
 
@@ -1679,6 +1717,7 @@ static s32
 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
 {
 	struct brcmf_if *ifp = netdev_priv(ndev);
+	struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
 	s32 val;
 	s32 err;
 	const struct brcmf_tlv *rsn_ie;
@@ -1689,6 +1728,8 @@ brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
 	u32 mfp;
 	u16 count;
 
+	profile->use_fwsup = BRCMF_PROFILE_FWSUP_NONE;
+
 	if (!sme->crypto.n_akm_suites)
 		return 0;
 
@@ -1701,6 +1742,8 @@ brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
 		switch (sme->crypto.akm_suites[0]) {
 		case WLAN_AKM_SUITE_8021X:
 			val = WPA_AUTH_UNSPECIFIED;
+			if (sme->want_1x)
+				profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X;
 			break;
 		case WLAN_AKM_SUITE_PSK:
 			val = WPA_AUTH_PSK;
@@ -1714,9 +1757,13 @@ brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
 		switch (sme->crypto.akm_suites[0]) {
 		case WLAN_AKM_SUITE_8021X:
 			val = WPA2_AUTH_UNSPECIFIED;
+			if (sme->want_1x)
+				profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X;
 			break;
 		case WLAN_AKM_SUITE_8021X_SHA256:
 			val = WPA2_AUTH_1X_SHA256;
+			if (sme->want_1x)
+				profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X;
 			break;
 		case WLAN_AKM_SUITE_PSK_SHA256:
 			val = WPA2_AUTH_PSK_SHA256;
@@ -1731,6 +1778,9 @@ brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
 		}
 	}
 
+	if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_1X)
+		brcmf_dbg(INFO, "using 1X offload\n");
+
 	if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP))
 		goto skip_mfp_config;
 	/* The MFP mode (1 or 2) needs to be determined, parse IEs. The
@@ -1903,6 +1953,7 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 {
 	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct brcmf_if *ifp = netdev_priv(ndev);
+	struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
 	struct ieee80211_channel *chan = sme->channel;
 	struct brcmf_join_params join_params;
 	size_t join_params_size;
@@ -1999,6 +2050,31 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 		goto done;
 	}
 
+	if (sme->crypto.psk) {
+		if (WARN_ON(profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE)) {
+			err = -EINVAL;
+			goto done;
+		}
+		brcmf_dbg(INFO, "using PSK offload\n");
+		profile->use_fwsup = BRCMF_PROFILE_FWSUP_PSK;
+	}
+
+	if (profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE) {
+		/* enable firmware supplicant for this interface */
+		err = brcmf_fil_iovar_int_set(ifp, "sup_wpa", 1);
+		if (err < 0) {
+			brcmf_err("failed to enable fw supplicant\n");
+			goto done;
+		}
+	}
+
+	if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_PSK) {
+		err = brcmf_set_pmk(ifp, sme->crypto.psk,
+				    BRCMF_WSEC_MAX_PSK_LEN);
+		if (err)
+			goto done;
+	}
+
 	/* Join with specific BSSID and cached SSID
 	 * If SSID is zero join based on BSSID only
 	 */
@@ -3011,7 +3087,7 @@ void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
 	struct escan_info *escan = &cfg->escan_info;
 
 	set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
-	if (cfg->internal_escan || cfg->scan_request) {
+	if (cfg->int_escan_map || cfg->scan_request) {
 		escan->escan_state = WL_ESCAN_STATE_IDLE;
 		brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
 	}
@@ -3034,7 +3110,7 @@ static void brcmf_escan_timeout(unsigned long data)
 	struct brcmf_cfg80211_info *cfg =
 			(struct brcmf_cfg80211_info *)data;
 
-	if (cfg->internal_escan || cfg->scan_request) {
+	if (cfg->int_escan_map || cfg->scan_request) {
 		brcmf_err("timer expired\n");
 		schedule_work(&cfg->escan_timeout_work);
 	}
@@ -3120,7 +3196,7 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 		if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
 			goto exit;
 
-		if (!cfg->internal_escan && !cfg->scan_request) {
+		if (!cfg->int_escan_map && !cfg->scan_request) {
 			brcmf_dbg(SCAN, "result without cfg80211 request\n");
 			goto exit;
 		}
@@ -3166,7 +3242,7 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 		cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
 		if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
 			goto exit;
-		if (cfg->internal_escan || cfg->scan_request) {
+		if (cfg->int_escan_map || cfg->scan_request) {
 			brcmf_inform_bss(cfg);
 			aborted = status != BRCMF_E_STATUS_SUCCESS;
 			brcmf_notify_escan_complete(cfg, ifp, aborted, false);
@@ -3248,17 +3324,21 @@ static int brcmf_internal_escan_add_info(struct cfg80211_scan_request *req,
 	return 0;
 }
 
-static int brcmf_start_internal_escan(struct brcmf_if *ifp,
+static int brcmf_start_internal_escan(struct brcmf_if *ifp, u32 fwmap,
 				      struct cfg80211_scan_request *request)
 {
 	struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
 	int err;
 
 	if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
+		if (cfg->int_escan_map)
+			brcmf_dbg(SCAN, "aborting internal scan: map=%u\n",
+				  cfg->int_escan_map);
 		/* Abort any on-going scan */
 		brcmf_abort_scanning(cfg);
 	}
 
+	brcmf_dbg(SCAN, "start internal scan: map=%u\n", fwmap);
 	set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
 	cfg->escan_info.run = brcmf_run_escan;
 	err = brcmf_do_escan(ifp, request);
@@ -3266,7 +3346,7 @@ static int brcmf_start_internal_escan(struct brcmf_if *ifp,
 		clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
 		return err;
 	}
-	cfg->internal_escan = true;
+	cfg->int_escan_map = fwmap;
 	return 0;
 }
 
@@ -3308,6 +3388,7 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 	struct wiphy *wiphy = cfg_to_wiphy(cfg);
 	int i, err = 0;
 	struct brcmf_pno_scanresults_le *pfn_result;
+	u32 bucket_map;
 	u32 result_count;
 	u32 status;
 	u32 datalen;
@@ -3352,6 +3433,7 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 		goto out_err;
 	}
 
+	bucket_map = 0;
 	for (i = 0; i < result_count; i++) {
 		netinfo = &netinfo_start[i];
 
@@ -3359,6 +3441,7 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 			netinfo->SSID_len = IEEE80211_MAX_SSID_LEN;
 		brcmf_dbg(SCAN, "SSID:%.32s Channel:%d\n",
 			  netinfo->SSID, netinfo->channel);
+		bucket_map |= brcmf_pno_get_bucket_map(cfg->pno, netinfo);
 		err = brcmf_internal_escan_add_info(request,
 						    netinfo->SSID,
 						    netinfo->SSID_len,
@@ -3367,7 +3450,10 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 			goto out_err;
 	}
 
-	err = brcmf_start_internal_escan(ifp, request);
+	if (!bucket_map)
+		goto free_req;
+
+	err = brcmf_start_internal_escan(ifp, bucket_map, request);
 	if (!err)
 		goto free_req;
 
@@ -3386,11 +3472,11 @@ brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
 
-	brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
+	brcmf_dbg(SCAN, "Enter: n_match_sets=%d n_ssids=%d\n",
 		  req->n_match_sets, req->n_ssids);
 
 	if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
-		brcmf_err("Scanning suppressed: status (%lu)\n",
+		brcmf_err("Scanning suppressed: status=%lu\n",
 			  cfg->scan_status);
 		return -EAGAIN;
 	}
@@ -3411,8 +3497,8 @@ static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
 	struct brcmf_if *ifp = netdev_priv(ndev);
 
 	brcmf_dbg(SCAN, "enter\n");
-	brcmf_pno_clean(ifp);
-	if (cfg->internal_escan)
+	brcmf_pno_stop_sched_scan(ifp, reqid);
+	if (cfg->int_escan_map)
 		brcmf_notify_escan_complete(cfg, ifp, true, true);
 	return 0;
 }
@@ -4674,9 +4760,6 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
 		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
 		if (err < 0)
 			brcmf_err("setting AP mode failed %d\n", err);
-		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
-		if (err < 0)
-			brcmf_err("setting INFRA mode failed %d\n", err);
 		if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
 			brcmf_fil_iovar_int_set(ifp, "mbss", 0);
 		brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
@@ -5131,6 +5214,34 @@ brcmf_cfg80211_set_rekey_data(struct wiphy *wiphy, struct net_device *ndev,
 }
 #endif
 
+static int brcmf_cfg80211_set_pmk(struct wiphy *wiphy, struct net_device *dev,
+				  const struct cfg80211_pmk_conf *conf)
+{
+	struct brcmf_if *ifp;
+
+	brcmf_dbg(TRACE, "enter\n");
+
+	/* expect using firmware supplicant for 1X */
+	ifp = netdev_priv(dev);
+	if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X))
+		return -EINVAL;
+
+	return brcmf_set_pmk(ifp, conf->pmk, conf->pmk_len);
+}
+
+static int brcmf_cfg80211_del_pmk(struct wiphy *wiphy, struct net_device *dev,
+				  const u8 *aa)
+{
+	struct brcmf_if *ifp;
+
+	brcmf_dbg(TRACE, "enter\n");
+	ifp = netdev_priv(dev);
+	if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X))
+		return -EINVAL;
+
+	return brcmf_set_pmk(ifp, NULL, 0);
+}
+
 static struct cfg80211_ops brcmf_cfg80211_ops = {
 	.add_virtual_intf = brcmf_cfg80211_add_iface,
 	.del_virtual_intf = brcmf_cfg80211_del_iface,
@@ -5174,6 +5285,8 @@ static struct cfg80211_ops brcmf_cfg80211_ops = {
 	.crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
 	.tdls_oper = brcmf_cfg80211_tdls_oper,
 	.update_connect_params = brcmf_cfg80211_update_conn_params,
+	.set_pmk = brcmf_cfg80211_set_pmk,
+	.del_pmk = brcmf_cfg80211_del_pmk,
 };
 
 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
@@ -5227,16 +5340,31 @@ void brcmf_cfg80211_free_netdev(struct net_device *ndev)
 		brcmf_free_vif(vif);
 }
 
-static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
+static bool brcmf_is_linkup(struct brcmf_cfg80211_vif *vif,
+			    const struct brcmf_event_msg *e)
 {
 	u32 event = e->event_code;
 	u32 status = e->status;
 
+	if (vif->profile.use_fwsup == BRCMF_PROFILE_FWSUP_PSK &&
+	    event == BRCMF_E_PSK_SUP &&
+	    status == BRCMF_E_STATUS_FWSUP_COMPLETED)
+		set_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state);
 	if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
 		brcmf_dbg(CONN, "Processing set ssid\n");
-		return true;
+		memcpy(vif->profile.bssid, e->addr, ETH_ALEN);
+		if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_PSK)
+			return true;
+
+		set_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state);
 	}
 
+	if (test_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state) &&
+	    test_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state)) {
+		clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state);
+		clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state);
+		return true;
+	}
 	return false;
 }
 
@@ -5271,6 +5399,13 @@ static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
 		return true;
 	}
 
+	if (event == BRCMF_E_PSK_SUP &&
+	    status != BRCMF_E_STATUS_FWSUP_COMPLETED) {
+		brcmf_dbg(CONN, "Processing failed supplicant state: %u\n",
+			  status);
+		return true;
+	}
+
 	return false;
 }
 
@@ -5421,27 +5556,28 @@ brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
 	struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
+	struct cfg80211_connect_resp_params conn_params;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
 	if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
 			       &ifp->vif->sme_state)) {
+		memset(&conn_params, 0, sizeof(conn_params));
 		if (completed) {
 			brcmf_get_assoc_ies(cfg, ifp);
-			memcpy(profile->bssid, e->addr, ETH_ALEN);
 			brcmf_update_bss_info(cfg, ifp);
 			set_bit(BRCMF_VIF_STATUS_CONNECTED,
 				&ifp->vif->sme_state);
+			conn_params.status = WLAN_STATUS_SUCCESS;
+		} else {
+			conn_params.status = WLAN_STATUS_AUTH_TIMEOUT;
 		}
-		cfg80211_connect_result(ndev,
-					(u8 *)profile->bssid,
-					conn_info->req_ie,
-					conn_info->req_ie_len,
-					conn_info->resp_ie,
-					conn_info->resp_ie_len,
-					completed ? WLAN_STATUS_SUCCESS :
-						    WLAN_STATUS_AUTH_TIMEOUT,
-					GFP_KERNEL);
+		conn_params.bssid = profile->bssid;
+		conn_params.req_ie = conn_info->req_ie;
+		conn_params.req_ie_len = conn_info->req_ie_len;
+		conn_params.resp_ie = conn_info->resp_ie;
+		conn_params.resp_ie_len = conn_info->resp_ie_len;
+		cfg80211_connect_done(ndev, &conn_params, GFP_KERNEL);
 		brcmf_dbg(CONN, "Report connect result - connection %s\n",
 			  completed ? "succeeded" : "failed");
 	}
@@ -5507,7 +5643,7 @@ brcmf_notify_connect_status(struct brcmf_if *ifp,
 
 	if (brcmf_is_apmode(ifp->vif)) {
 		err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
-	} else if (brcmf_is_linkup(e)) {
+	} else if (brcmf_is_linkup(ifp->vif, e)) {
 		brcmf_dbg(CONN, "Linkup\n");
 		if (brcmf_is_ibssmode(ifp->vif)) {
 			brcmf_inform_ibss(cfg, ndev, e->addr);
@@ -5675,6 +5811,8 @@ static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
 			    brcmf_p2p_notify_action_tx_complete);
 	brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
 			    brcmf_p2p_notify_action_tx_complete);
+	brcmf_fweh_register(cfg->pub, BRCMF_E_PSK_SUP,
+			    brcmf_notify_connect_status);
 }
 
 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
@@ -6377,16 +6515,6 @@ err:
 	return -ENOMEM;
 }
 
-static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
-{
-	/* scheduled scan settings */
-	wiphy->max_sched_scan_reqs = 1;
-	wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
-	wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
-	wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
-	wiphy->max_sched_scan_plan_interval = BRCMF_PNO_SCHED_SCAN_MAX_PERIOD;
-}
-
 #ifdef CONFIG_PM
 static const struct wiphy_wowlan_support brcmf_wowlan_support = {
 	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
@@ -6433,6 +6561,7 @@ static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
 	const struct ieee80211_iface_combination *combo;
 	struct ieee80211_supported_band *band;
 	u16 max_interfaces = 0;
+	bool gscan;
 	__le32 bandlist[3];
 	u32 n_bands;
 	int err, i;
@@ -6480,11 +6609,18 @@ static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
 		wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
 	if (!ifp->drvr->settings->roamoff)
 		wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
+	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_FWSUP)) {
+		wiphy_ext_feature_set(wiphy,
+				      NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK);
+		wiphy_ext_feature_set(wiphy,
+				      NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X);
+	}
 	wiphy->mgmt_stypes = brcmf_txrx_stypes;
 	wiphy->max_remain_on_channel_duration = 5000;
-	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO))
-		brcmf_wiphy_pno_params(wiphy);
-
+	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) {
+		gscan = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_GSCAN);
+		brcmf_pno_wiphy_params(wiphy, gscan);
+	}
 	/* vendor commands/events support */
 	wiphy->vendor_commands = brcmf_vendor_cmds;
 	wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1;
@@ -6766,7 +6902,7 @@ static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
 	/* ignore non-ISO3166 country codes */
 	for (i = 0; i < sizeof(req->alpha2); i++)
 		if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
-			brcmf_err("not a ISO3166 code (0x%02x 0x%02x)\n",
+			brcmf_err("not an ISO3166 code (0x%02x 0x%02x)\n",
 				  req->alpha2[0], req->alpha2[1]);
 			return;
 		}
@@ -6850,7 +6986,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 	wiphy = wiphy_new(ops, sizeof(struct brcmf_cfg80211_info));
 	if (!wiphy) {
 		brcmf_err("Could not allocate wiphy device\n");
-		return NULL;
+		goto ops_out;
 	}
 	memcpy(wiphy->perm_addr, drvr->mac, ETH_ALEN);
 	set_wiphy_dev(wiphy, busdev);
@@ -6951,6 +7087,13 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 		brcmf_p2p_detach(&cfg->p2p);
 		goto wiphy_unreg_out;
 	}
+	err = brcmf_pno_attach(cfg);
+	if (err) {
+		brcmf_err("PNO initialisation failed (%d)\n", err);
+		brcmf_btcoex_detach(cfg);
+		brcmf_p2p_detach(&cfg->p2p);
+		goto wiphy_unreg_out;
+	}
 
 	if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) {
 		err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1);
@@ -6983,6 +7126,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 	return cfg;
 
 detach:
+	brcmf_pno_detach(cfg);
 	brcmf_btcoex_detach(cfg);
 	brcmf_p2p_detach(&cfg->p2p);
 wiphy_unreg_out:
@@ -6993,6 +7137,7 @@ priv_out:
 	ifp->vif = NULL;
 wiphy_out:
 	brcmf_free_wiphy(wiphy);
+ops_out:
 	kfree(ops);
 	return NULL;
 }
@@ -7002,6 +7147,7 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
 	if (!cfg)
 		return;
 
+	brcmf_pno_detach(cfg);
 	brcmf_btcoex_detach(cfg);
 	wiphy_unregister(cfg->wiphy);
 	kfree(cfg->ops);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
index 8f19d95d4175..7b2835e5e434 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
@@ -24,6 +24,8 @@
 #include "fwil_types.h"
 #include "p2p.h"
 
+#define BRCMF_SCAN_IE_LEN_MAX		2048
+
 #define WL_NUM_SCAN_MAX			10
 #define WL_TLV_INFO_MAX			1024
 #define WL_BSS_INFO_MAX			2048
@@ -113,6 +115,12 @@ struct brcmf_cfg80211_security {
 	u32 cipher_group;
 };
 
+enum brcmf_profile_fwsup {
+	BRCMF_PROFILE_FWSUP_NONE,
+	BRCMF_PROFILE_FWSUP_PSK,
+	BRCMF_PROFILE_FWSUP_1X
+};
+
 /**
  * struct brcmf_cfg80211_profile - profile information.
  *
@@ -124,6 +132,7 @@ struct brcmf_cfg80211_profile {
 	u8 bssid[ETH_ALEN];
 	struct brcmf_cfg80211_security sec;
 	struct brcmf_wsec_key key[BRCMF_MAX_DEFAULT_KEYS];
+	enum brcmf_profile_fwsup use_fwsup;
 };
 
 /**
@@ -131,16 +140,20 @@ struct brcmf_cfg80211_profile {
  *
  * @BRCMF_VIF_STATUS_READY: ready for operation.
  * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
- * @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
+ * @BRCMF_VIF_STATUS_CONNECTED: connected/joined successfully.
  * @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
  * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
+ * @BRCMF_VIF_STATUS_EAP_SUCCUSS: EAPOL handshake successful.
+ * @BRCMF_VIF_STATUS_ASSOC_SUCCESS: successful SET_SSID received.
  */
 enum brcmf_vif_status {
 	BRCMF_VIF_STATUS_READY,
 	BRCMF_VIF_STATUS_CONNECTING,
 	BRCMF_VIF_STATUS_CONNECTED,
 	BRCMF_VIF_STATUS_DISCONNECTING,
-	BRCMF_VIF_STATUS_AP_CREATED
+	BRCMF_VIF_STATUS_AP_CREATED,
+	BRCMF_VIF_STATUS_EAP_SUCCESS,
+	BRCMF_VIF_STATUS_ASSOC_SUCCESS,
 };
 
 /**
@@ -271,7 +284,7 @@ struct brcmf_cfg80211_wowl {
  * @pub: common driver information.
  * @channel: current channel.
  * @active_scan: current scan mode.
- * @internal_escan: indicates internally initiated e-scan is running.
+ * @int_escan_map: bucket map for which internal e-scan is done.
  * @ibss_starter: indicates this sta is ibss starter.
  * @pwr_save: indicate whether dongle to support power save mode.
  * @dongle_up: indicate whether dongle up or not.
@@ -287,6 +300,7 @@ struct brcmf_cfg80211_wowl {
  * @vif_cnt: number of vif instances.
  * @vif_event: vif event signalling.
  * @wowl: wowl related information.
+ * @pno: information of pno module.
  */
 struct brcmf_cfg80211_info {
 	struct wiphy *wiphy;
@@ -303,7 +317,7 @@ struct brcmf_cfg80211_info {
 	struct brcmf_pub *pub;
 	u32 channel;
 	bool active_scan;
-	bool internal_escan;
+	u32 int_escan_map;
 	bool ibss_starter;
 	bool pwr_save;
 	bool dongle_up;
@@ -320,6 +334,7 @@ struct brcmf_cfg80211_info {
 	struct brcmu_d11inf d11inf;
 	struct brcmf_assoclist_le assoclist;
 	struct brcmf_cfg80211_wowl wowl;
+	struct brcmf_pno_info *pno;
 };
 
 /**
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index 511d190c6cca..2153e8062b4c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -30,6 +30,7 @@
 #include "debug.h"
 #include "fwil_types.h"
 #include "p2p.h"
+#include "pno.h"
 #include "cfg80211.h"
 #include "fwil.h"
 #include "feature.h"
@@ -198,6 +199,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_pub *drvr = ifp->drvr;
 	struct ethhdr *eh;
+	int head_delta;
 
 	brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
 
@@ -210,13 +212,21 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 		goto done;
 	}
 
-	/* Make sure there's enough writable headroom*/
-	ret = skb_cow_head(skb, drvr->hdrlen);
-	if (ret < 0) {
-		brcmf_err("%s: skb_cow_head failed\n",
-			  brcmf_ifname(ifp));
-		dev_kfree_skb(skb);
-		goto done;
+	/* Make sure there's enough writeable headroom */
+	if (skb_headroom(skb) < drvr->hdrlen || skb_header_cloned(skb)) {
+		head_delta = drvr->hdrlen - skb_headroom(skb);
+
+		brcmf_dbg(INFO, "%s: insufficient headroom (%d)\n",
+			  brcmf_ifname(ifp), head_delta);
+		atomic_inc(&drvr->bus_if->stats.pktcowed);
+		ret = pskb_expand_head(skb, ALIGN(head_delta, NET_SKB_PAD), 0,
+				       GFP_ATOMIC);
+		if (ret < 0) {
+			brcmf_err("%s: failed to expand headroom\n",
+				  brcmf_ifname(ifp));
+			atomic_inc(&drvr->bus_if->stats.pktcow_failed);
+			goto done;
+		}
 	}
 
 	/* validate length for ether packet */
@@ -484,13 +494,13 @@ int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
 		goto fail;
 	}
 
+	ndev->priv_destructor = brcmf_cfg80211_free_netdev;
 	brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name);
 	return 0;
 
 fail:
 	drvr->iflist[ifp->bsscfgidx] = NULL;
 	ndev->netdev_ops = NULL;
-	free_netdev(ndev);
 	return -EBADE;
 }
 
@@ -503,6 +513,7 @@ static void brcmf_net_detach(struct net_device *ndev, bool rtnl_locked)
 			unregister_netdev(ndev);
 	} else {
 		brcmf_cfg80211_free_netdev(ndev);
+		free_netdev(ndev);
 	}
 }
 
@@ -579,7 +590,6 @@ static int brcmf_net_p2p_attach(struct brcmf_if *ifp)
 fail:
 	ifp->drvr->iflist[ifp->bsscfgidx] = NULL;
 	ndev->netdev_ops = NULL;
-	free_netdev(ndev);
 	return -EBADE;
 }
 
@@ -625,7 +635,6 @@ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
 			return ERR_PTR(-ENOMEM);
 
 		ndev->needs_free_netdev = true;
-		ndev->priv_destructor = brcmf_cfg80211_free_netdev;
 		ifp = netdev_priv(ndev);
 		ifp->ndev = ndev;
 		/* store mapping ifidx to bsscfgidx */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
index fe264a5798f1..35919d9e8e13 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
@@ -78,6 +78,7 @@ do {								\
 #define BRCMF_EVENT_ON()	(brcmf_msg_level & BRCMF_EVENT_VAL)
 #define BRCMF_FIL_ON()		(brcmf_msg_level & BRCMF_FIL_VAL)
 #define BRCMF_FWCON_ON()	(brcmf_msg_level & BRCMF_FWCON_VAL)
+#define BRCMF_SCAN_ON()		(brcmf_msg_level & BRCMF_SCAN_VAL)
 
 #else /* defined(DEBUG) || defined(CONFIG_BRCM_TRACING) */
 
@@ -96,6 +97,7 @@ do {								\
 #define BRCMF_EVENT_ON()	0
 #define BRCMF_FIL_ON()		0
 #define BRCMF_FWCON_ON()	0
+#define BRCMF_SCAN_ON()		0
 
 #endif /* defined(DEBUG) || defined(CONFIG_BRCM_TRACING) */
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
index 62985f2c0853..d21258d277ce 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -27,6 +27,7 @@
 #include "feature.h"
 #include "common.h"
 
+#define BRCMF_FW_UNSUPPORTED	23
 
 /*
  * expand feature list to array of feature strings.
@@ -113,6 +114,22 @@ static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp,
 	}
 }
 
+static void brcmf_feat_iovar_data_set(struct brcmf_if *ifp,
+				      enum brcmf_feat_id id, char *name,
+				      const void *data, size_t len)
+{
+	int err;
+
+	err = brcmf_fil_iovar_data_set(ifp, name, data, len);
+	if (err != -BRCMF_FW_UNSUPPORTED) {
+		brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
+		ifp->drvr->feat_flags |= BIT(id);
+	} else {
+		brcmf_dbg(TRACE, "%s feature check failed: %d\n",
+			  brcmf_feat_names[id], err);
+	}
+}
+
 static void brcmf_feat_firmware_capabilities(struct brcmf_if *ifp)
 {
 	char caps[256];
@@ -136,11 +153,14 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
 {
 	struct brcmf_if *ifp = brcmf_get_ifp(drvr, 0);
 	struct brcmf_pno_macaddr_le pfn_mac;
+	struct brcmf_gscan_config gscan_cfg;
 	u32 wowl_cap;
 	s32 err;
 
 	brcmf_feat_firmware_capabilities(ifp);
-
+	memset(&gscan_cfg, 0, sizeof(gscan_cfg));
+	brcmf_feat_iovar_data_set(ifp, BRCMF_FEAT_GSCAN, "pfn_gscan_cfg",
+				  &gscan_cfg, sizeof(gscan_cfg));
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn");
 	if (drvr->bus_if->wowl_supported)
 		brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
@@ -175,6 +195,7 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
 			  drvr->settings->feature_disable);
 		ifp->drvr->feat_flags &= ~drvr->settings->feature_disable;
 	}
+	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_FWSUP, "sup_wpa");
 
 	/* set chip related quirks */
 	switch (drvr->bus_if->chip) {
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h
index db4733a95e28..1ab4f1617112 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h
@@ -31,6 +31,8 @@
  * WOWL_GTK: (WOWL) GTK rekeying offload
  * WOWL_ARP_ND: ARP and Neighbor Discovery offload support during WOWL.
  * MFP: 802.11w Management Frame Protection.
+ * GSCAN: enhanced scan offload feature.
+ * FWSUP: Firmware supplicant.
  */
 #define BRCMF_FEAT_LIST \
 	BRCMF_FEAT_DEF(MBSS) \
@@ -44,7 +46,9 @@
 	BRCMF_FEAT_DEF(WOWL_ND) \
 	BRCMF_FEAT_DEF(WOWL_GTK) \
 	BRCMF_FEAT_DEF(WOWL_ARP_ND) \
-	BRCMF_FEAT_DEF(MFP)
+	BRCMF_FEAT_DEF(MFP) \
+	BRCMF_FEAT_DEF(GSCAN) \
+	BRCMF_FEAT_DEF(FWSUP)
 
 /*
  * Quirks:
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
index 5fba4b49f3b3..816f80ea925b 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
@@ -142,6 +142,16 @@ enum brcmf_fweh_event_code {
 #define BRCMF_E_STATUS_CS_ABORT			15
 #define BRCMF_E_STATUS_ERROR			16
 
+/* status field values for PSK_SUP event */
+#define BRCMF_E_STATUS_FWSUP_WAIT_M1		4
+#define BRCMF_E_STATUS_FWSUP_PREP_M2		5
+#define BRCMF_E_STATUS_FWSUP_COMPLETED		6
+#define BRCMF_E_STATUS_FWSUP_TIMEOUT		7
+#define BRCMF_E_STATUS_FWSUP_WAIT_M3		8
+#define BRCMF_E_STATUS_FWSUP_PREP_M4		9
+#define BRCMF_E_STATUS_FWSUP_WAIT_G1		10
+#define BRCMF_E_STATUS_FWSUP_PREP_G2		11
+
 /* reason field values in struct brcmf_event_msg */
 #define BRCMF_E_REASON_INITIAL_ASSOC		0
 #define BRCMF_E_REASON_LOW_RSSI			1
@@ -161,6 +171,26 @@ enum brcmf_fweh_event_code {
 #define BRCMF_E_REASON_TDLS_PEER_CONNECTED	1
 #define BRCMF_E_REASON_TDLS_PEER_DISCONNECTED	2
 
+/* reason field values for PSK_SUP event */
+#define BRCMF_E_REASON_FWSUP_OTHER		0
+#define BRCMF_E_REASON_FWSUP_DECRYPT_KEY_DATA	1
+#define BRCMF_E_REASON_FWSUP_BAD_UCAST_WEP128	2
+#define BRCMF_E_REASON_FWSUP_BAD_UCAST_WEP40	3
+#define BRCMF_E_REASON_FWSUP_UNSUP_KEY_LEN	4
+#define BRCMF_E_REASON_FWSUP_PW_KEY_CIPHER	5
+#define BRCMF_E_REASON_FWSUP_MSG3_TOO_MANY_IE	6
+#define BRCMF_E_REASON_FWSUP_MSG3_IE_MISMATCH	7
+#define BRCMF_E_REASON_FWSUP_NO_INSTALL_FLAG	8
+#define BRCMF_E_REASON_FWSUP_MSG3_NO_GTK	9
+#define BRCMF_E_REASON_FWSUP_GRP_KEY_CIPHER	10
+#define BRCMF_E_REASON_FWSUP_GRP_MSG1_NO_GTK	11
+#define BRCMF_E_REASON_FWSUP_GTK_DECRYPT_FAIL	12
+#define BRCMF_E_REASON_FWSUP_SEND_FAIL		13
+#define BRCMF_E_REASON_FWSUP_DEAUTH		14
+#define BRCMF_E_REASON_FWSUP_WPA_PSK_TMO	15
+#define BRCMF_E_REASON_FWSUP_WPA_PSK_M1_TMO	16
+#define BRCMF_E_REASON_FWSUP_WPA_PSK_M3_TMO	17
+
 /* action field values for brcmf_ifevent */
 #define BRCMF_E_IF_ADD				1
 #define BRCMF_E_IF_DEL				2
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
index 3a9a76dd9222..63b1287e2e6d 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
@@ -85,6 +85,7 @@
 #define BRCMF_C_SET_SCAN_PASSIVE_TIME		258
 #define BRCMF_C_GET_VAR				262
 #define BRCMF_C_SET_VAR				263
+#define BRCMF_C_SET_WSEC_PMK			268
 
 s32 brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len);
 s32 brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
index 9a1eb5ab6c4b..8391989b1882 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
@@ -45,6 +45,9 @@
 #define BRCMF_SCAN_PARAMS_COUNT_MASK	0x0000ffff
 #define BRCMF_SCAN_PARAMS_NSSID_SHIFT	16
 
+#define BRCMF_WSEC_MAX_PSK_LEN		32
+#define	BRCMF_WSEC_PASSPHRASE		BIT(0)
+
 /* primary (ie tx) key */
 #define BRCMF_PRIMARY_KEY		(1 << 1)
 #define DOT11_BSSTYPE_ANY		2
@@ -470,6 +473,19 @@ struct brcmf_wsec_key_le {
 	u8 ea[ETH_ALEN];	/* per station */
 };
 
+/**
+ * struct brcmf_wsec_pmk_le - firmware pmk material.
+ *
+ * @key_len: number of octets in key material.
+ * @flags: key handling qualifiers.
+ * @key: PMK key material.
+ */
+struct brcmf_wsec_pmk_le {
+	__le16  key_len;
+	__le16  flags;
+	u8 key[2 * BRCMF_WSEC_MAX_PSK_LEN + 1];
+};
+
 /* Used to get specific STA parameters */
 struct brcmf_scb_val_le {
 	__le32 val;
@@ -806,6 +822,17 @@ struct brcmf_pno_macaddr_le {
 };
 
 /**
+ * struct brcmf_pno_bssid_le - bssid configuration for PNO scan.
+ *
+ * @bssid: BSS network identifier.
+ * @flags: flags for this BSSID.
+ */
+struct brcmf_pno_bssid_le {
+	u8 bssid[ETH_ALEN];
+	__le16 flags;
+};
+
+/**
  * struct brcmf_pktcnt_le - packet counters.
  *
  * @rx_good_pkt: packets (MSDUs & MMPDUs) received from this station
@@ -835,4 +862,69 @@ struct brcmf_gtk_keyinfo_le {
 	u8 replay_counter[BRCMF_RSN_REPLAY_LEN];
 };
 
+#define BRCMF_PNO_REPORT_NO_BATCH	BIT(2)
+
+/**
+ * struct brcmf_gscan_bucket_config - configuration data for channel bucket.
+ *
+ * @bucket_end_index: last channel index in @channel_list in
+ *	@struct brcmf_pno_config_le.
+ * @bucket_freq_multiple: scan interval expressed in N * @scan_freq.
+ * @flag: channel bucket report flags.
+ * @reserved: for future use.
+ * @repeat: number of scan at interval for exponential scan.
+ * @max_freq_multiple: maximum scan interval for exponential scan.
+ */
+struct brcmf_gscan_bucket_config {
+	u8 bucket_end_index;
+	u8 bucket_freq_multiple;
+	u8 flag;
+	u8 reserved;
+	__le16 repeat;
+	__le16 max_freq_multiple;
+};
+
+/* version supported which must match firmware */
+#define BRCMF_GSCAN_CFG_VERSION                     2
+
+/**
+ * enum brcmf_gscan_cfg_flags - bit values for gscan flags.
+ *
+ * @BRCMF_GSCAN_CFG_FLAGS_ALL_RESULTS: send probe responses/beacons to host.
+ * @BRCMF_GSCAN_CFG_ALL_BUCKETS_IN_1ST_SCAN: all buckets will be included in
+ *	first scan cycle.
+ * @BRCMF_GSCAN_CFG_FLAGS_CHANGE_ONLY: indicated only flags member is changed.
+ */
+enum brcmf_gscan_cfg_flags {
+	BRCMF_GSCAN_CFG_FLAGS_ALL_RESULTS = BIT(0),
+	BRCMF_GSCAN_CFG_ALL_BUCKETS_IN_1ST_SCAN = BIT(3),
+	BRCMF_GSCAN_CFG_FLAGS_CHANGE_ONLY = BIT(7),
+};
+
+/**
+ * struct brcmf_gscan_config - configuration data for gscan.
+ *
+ * @version: version of the api to match firmware.
+ * @flags: flags according %enum brcmf_gscan_cfg_flags.
+ * @buffer_threshold: percentage threshold of buffer to generate an event.
+ * @swc_nbssid_threshold: number of BSSIDs with significant change that
+ *	will generate an event.
+ * @swc_rssi_window_size: size of rssi cache buffer (max=8).
+ * @count_of_channel_buckets: number of array members in @bucket.
+ * @retry_threshold: !unknown!
+ * @lost_ap_window: !unknown!
+ * @bucket: array of channel buckets.
+ */
+struct brcmf_gscan_config {
+	__le16 version;
+	u8 flags;
+	u8 buffer_threshold;
+	u8 swc_nbssid_threshold;
+	u8 swc_rssi_window_size;
+	u8 count_of_channel_buckets;
+	u8 retry_threshold;
+	__le16  lost_ap_window;
+	struct brcmf_gscan_bucket_config bucket[1];
+};
+
 #endif /* FWIL_TYPES_H_ */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
index aa299c47bfa2..2ce675ab40ef 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
@@ -2208,6 +2208,7 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
 	err = brcmf_net_attach(ifp, true);
 	if (err) {
 		brcmf_err("Registering netdevice failed\n");
+		free_netdev(ifp->ndev);
 		goto fail;
 	}
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
index 6c3bde83d070..ffa243e2e2d0 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
@@ -14,6 +14,7 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 #include <linux/netdevice.h>
+#include <linux/gcd.h>
 #include <net/cfg80211.h>
 
 #include "core.h"
@@ -35,6 +36,67 @@
 #define BRCMF_PNO_HIDDEN_BIT		2
 #define BRCMF_PNO_SCHED_SCAN_PERIOD	30
 
+#define BRCMF_PNO_MAX_BUCKETS		16
+#define GSCAN_BATCH_NO_THR_SET			101
+#define GSCAN_RETRY_THRESHOLD			3
+
+struct brcmf_pno_info {
+	int n_reqs;
+	struct cfg80211_sched_scan_request *reqs[BRCMF_PNO_MAX_BUCKETS];
+	struct mutex req_lock;
+};
+
+#define ifp_to_pno(_ifp)	((_ifp)->drvr->config->pno)
+
+static int brcmf_pno_store_request(struct brcmf_pno_info *pi,
+				   struct cfg80211_sched_scan_request *req)
+{
+	if (WARN(pi->n_reqs == BRCMF_PNO_MAX_BUCKETS,
+		 "pno request storage full\n"))
+		return -ENOSPC;
+
+	brcmf_dbg(SCAN, "reqid=%llu\n", req->reqid);
+	mutex_lock(&pi->req_lock);
+	pi->reqs[pi->n_reqs++] = req;
+	mutex_unlock(&pi->req_lock);
+	return 0;
+}
+
+static int brcmf_pno_remove_request(struct brcmf_pno_info *pi, u64 reqid)
+{
+	int i, err = 0;
+
+	mutex_lock(&pi->req_lock);
+
+	/* find request */
+	for (i = 0; i < pi->n_reqs; i++) {
+		if (pi->reqs[i]->reqid == reqid)
+			break;
+	}
+	/* request not found */
+	if (WARN(i == pi->n_reqs, "reqid not found\n")) {
+		err = -ENOENT;
+		goto done;
+	}
+
+	brcmf_dbg(SCAN, "reqid=%llu\n", reqid);
+	pi->n_reqs--;
+
+	/* if last we are done */
+	if (!pi->n_reqs || i == pi->n_reqs)
+		goto done;
+
+	/* fill the gap with remaining requests */
+	while (i <= pi->n_reqs - 1) {
+		pi->reqs[i] = pi->reqs[i + 1];
+		i++;
+	}
+
+done:
+	mutex_unlock(&pi->req_lock);
+	return err;
+}
+
 static int brcmf_pno_channel_config(struct brcmf_if *ifp,
 				    struct brcmf_pno_config_le *cfg)
 {
@@ -57,16 +119,11 @@ static int brcmf_pno_config(struct brcmf_if *ifp, u32 scan_freq,
 
 	/* set extra pno params */
 	flags = BIT(BRCMF_PNO_IMMEDIATE_SCAN_BIT) |
-		BIT(BRCMF_PNO_REPORT_SEPARATELY_BIT) |
 		BIT(BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
 	pfn_param.repeat = BRCMF_PNO_REPEAT;
 	pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
 
 	/* set up pno scan fr */
-	if (scan_freq < BRCMF_PNO_SCHED_SCAN_MIN_PERIOD) {
-		brcmf_dbg(SCAN, "scan period too small, using minimum\n");
-		scan_freq = BRCMF_PNO_SCHED_SCAN_MIN_PERIOD;
-	}
 	pfn_param.scan_freq = cpu_to_le32(scan_freq);
 
 	if (mscan) {
@@ -101,12 +158,24 @@ exit:
 	return err;
 }
 
-static int brcmf_pno_set_random(struct brcmf_if *ifp, u8 *mac_addr,
-				u8 *mac_mask)
+static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
 {
 	struct brcmf_pno_macaddr_le pfn_mac;
+	u8 *mac_addr = NULL;
+	u8 *mac_mask = NULL;
 	int err, i;
 
+	for (i = 0; i < pi->n_reqs; i++)
+		if (pi->reqs[i]->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
+			mac_addr = pi->reqs[i]->mac_addr;
+			mac_mask = pi->reqs[i]->mac_addr_mask;
+			break;
+		}
+
+	/* no random mac requested */
+	if (!mac_addr)
+		return 0;
+
 	pfn_mac.version = BRCMF_PFN_MACADDR_CFG_VER;
 	pfn_mac.flags = BRCMF_PFN_MAC_OUI_ONLY | BRCMF_PFN_SET_MAC_UNASSOC;
 
@@ -120,6 +189,8 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, u8 *mac_addr,
 	/* Set locally administered */
 	pfn_mac.mac[0] |= 0x02;
 
+	brcmf_dbg(SCAN, "enabling random mac: reqid=%llu mac=%pM\n",
+		  pi->reqs[i]->reqid, pfn_mac.mac);
 	err = brcmf_fil_iovar_data_set(ifp, "pfn_macaddr", &pfn_mac,
 				       sizeof(pfn_mac));
 	if (err)
@@ -132,6 +203,7 @@ static int brcmf_pno_add_ssid(struct brcmf_if *ifp, struct cfg80211_ssid *ssid,
 			      bool active)
 {
 	struct brcmf_pno_net_param_le pfn;
+	int err;
 
 	pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
 	pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
@@ -142,7 +214,28 @@ static int brcmf_pno_add_ssid(struct brcmf_if *ifp, struct cfg80211_ssid *ssid,
 		pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
 	pfn.ssid.SSID_len = cpu_to_le32(ssid->ssid_len);
 	memcpy(pfn.ssid.SSID, ssid->ssid, ssid->ssid_len);
-	return brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn, sizeof(pfn));
+
+	brcmf_dbg(SCAN, "adding ssid=%.32s (active=%d)\n", ssid->ssid, active);
+	err = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn, sizeof(pfn));
+	if (err < 0)
+		brcmf_err("adding failed: err=%d\n", err);
+	return err;
+}
+
+static int brcmf_pno_add_bssid(struct brcmf_if *ifp, const u8 *bssid)
+{
+	struct brcmf_pno_bssid_le bssid_cfg;
+	int err;
+
+	memcpy(bssid_cfg.bssid, bssid, ETH_ALEN);
+	bssid_cfg.flags = 0;
+
+	brcmf_dbg(SCAN, "adding bssid=%pM\n", bssid);
+	err = brcmf_fil_iovar_data_set(ifp, "pfn_add_bssid", &bssid_cfg,
+				       sizeof(bssid_cfg));
+	if (err < 0)
+		brcmf_err("adding failed: err=%d\n", err);
+	return err;
 }
 
 static bool brcmf_is_ssid_active(struct cfg80211_ssid *ssid,
@@ -163,7 +256,7 @@ static bool brcmf_is_ssid_active(struct cfg80211_ssid *ssid,
 	return false;
 }
 
-int brcmf_pno_clean(struct brcmf_if *ifp)
+static int brcmf_pno_clean(struct brcmf_if *ifp)
 {
 	int ret;
 
@@ -179,63 +272,320 @@ int brcmf_pno_clean(struct brcmf_if *ifp)
 	return ret;
 }
 
-int brcmf_pno_start_sched_scan(struct brcmf_if *ifp,
-			       struct cfg80211_sched_scan_request *req)
+static int brcmf_pno_get_bucket_channels(struct cfg80211_sched_scan_request *r,
+					 struct brcmf_pno_config_le *pno_cfg)
 {
-	struct brcmf_pno_config_le pno_cfg;
-	struct cfg80211_ssid *ssid;
+	u32 n_chan = le32_to_cpu(pno_cfg->channel_num);
 	u16 chan;
-	int i, ret;
+	int i, err = 0;
 
-	/* clean up everything */
-	ret = brcmf_pno_clean(ifp);
-	if  (ret < 0) {
-		brcmf_err("failed error=%d\n", ret);
-		return ret;
+	for (i = 0; i < r->n_channels; i++) {
+		if (n_chan >= BRCMF_NUMCHANNELS) {
+			err = -ENOSPC;
+			goto done;
+		}
+		chan = r->channels[i]->hw_value;
+		brcmf_dbg(SCAN, "[%d] Chan : %u\n", n_chan, chan);
+		pno_cfg->channel_list[n_chan++] = cpu_to_le16(chan);
 	}
+	/* return number of channels */
+	err = n_chan;
+done:
+	pno_cfg->channel_num = cpu_to_le32(n_chan);
+	return err;
+}
 
-	/* configure pno */
-	ret = brcmf_pno_config(ifp, req->scan_plans[0].interval, 0, 0);
-	if (ret < 0)
-		return ret;
-
-	/* configure random mac */
-	if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
-		ret = brcmf_pno_set_random(ifp, req->mac_addr,
-					   req->mac_addr_mask);
-		if (ret < 0)
-			return ret;
+static int brcmf_pno_prep_fwconfig(struct brcmf_pno_info *pi,
+				   struct brcmf_pno_config_le *pno_cfg,
+				   struct brcmf_gscan_bucket_config **buckets,
+				   u32 *scan_freq)
+{
+	struct cfg80211_sched_scan_request *sr;
+	struct brcmf_gscan_bucket_config *fw_buckets;
+	int i, err, chidx;
+
+	brcmf_dbg(SCAN, "n_reqs=%d\n", pi->n_reqs);
+	if (WARN_ON(!pi->n_reqs))
+		return -ENODATA;
+
+	/*
+	 * actual scan period is determined using gcd() for each
+	 * scheduled scan period.
+	 */
+	*scan_freq = pi->reqs[0]->scan_plans[0].interval;
+	for (i = 1; i < pi->n_reqs; i++) {
+		sr = pi->reqs[i];
+		*scan_freq = gcd(sr->scan_plans[0].interval, *scan_freq);
+	}
+	if (*scan_freq < BRCMF_PNO_SCHED_SCAN_MIN_PERIOD) {
+		brcmf_dbg(SCAN, "scan period too small, using minimum\n");
+		*scan_freq = BRCMF_PNO_SCHED_SCAN_MIN_PERIOD;
 	}
 
-	/* configure channels to use */
-	for (i = 0; i < req->n_channels; i++) {
-		chan = req->channels[i]->hw_value;
-		pno_cfg.channel_list[i] = cpu_to_le16(chan);
+	*buckets = NULL;
+	fw_buckets = kcalloc(pi->n_reqs, sizeof(*fw_buckets), GFP_KERNEL);
+	if (!fw_buckets)
+		return -ENOMEM;
+
+	memset(pno_cfg, 0, sizeof(*pno_cfg));
+	for (i = 0; i < pi->n_reqs; i++) {
+		sr = pi->reqs[i];
+		chidx = brcmf_pno_get_bucket_channels(sr, pno_cfg);
+		if (chidx < 0) {
+			err = chidx;
+			goto fail;
+		}
+		fw_buckets[i].bucket_end_index = chidx - 1;
+		fw_buckets[i].bucket_freq_multiple =
+			sr->scan_plans[0].interval / *scan_freq;
+		/* assure period is non-zero */
+		if (!fw_buckets[i].bucket_freq_multiple)
+			fw_buckets[i].bucket_freq_multiple = 1;
+		fw_buckets[i].flag = BRCMF_PNO_REPORT_NO_BATCH;
 	}
-	if (req->n_channels) {
-		pno_cfg.channel_num = cpu_to_le32(req->n_channels);
-		brcmf_pno_channel_config(ifp, &pno_cfg);
+
+	if (BRCMF_SCAN_ON()) {
+		brcmf_err("base period=%u\n", *scan_freq);
+		for (i = 0; i < pi->n_reqs; i++) {
+			brcmf_err("[%d] period %u max %u repeat %u flag %x idx %u\n",
+				  i, fw_buckets[i].bucket_freq_multiple,
+				  le16_to_cpu(fw_buckets[i].max_freq_multiple),
+				  fw_buckets[i].repeat, fw_buckets[i].flag,
+				  fw_buckets[i].bucket_end_index);
+		}
 	}
+	*buckets = fw_buckets;
+	return pi->n_reqs;
 
-	/* configure each match set */
-	for (i = 0; i < req->n_match_sets; i++) {
-		ssid = &req->match_sets[i].ssid;
-		if (!ssid->ssid_len) {
-			brcmf_err("skip broadcast ssid\n");
-			continue;
+fail:
+	kfree(fw_buckets);
+	return err;
+}
+
+static int brcmf_pno_config_networks(struct brcmf_if *ifp,
+				     struct brcmf_pno_info *pi)
+{
+	struct cfg80211_sched_scan_request *r;
+	struct cfg80211_match_set *ms;
+	bool active;
+	int i, j, err = 0;
+
+	for (i = 0; i < pi->n_reqs; i++) {
+		r = pi->reqs[i];
+
+		for (j = 0; j < r->n_match_sets; j++) {
+			ms = &r->match_sets[j];
+			if (ms->ssid.ssid_len) {
+				active = brcmf_is_ssid_active(&ms->ssid, r);
+				err = brcmf_pno_add_ssid(ifp, &ms->ssid,
+							 active);
+			}
+			if (!err && is_valid_ether_addr(ms->bssid))
+				err = brcmf_pno_add_bssid(ifp, ms->bssid);
+
+			if (err < 0)
+				return err;
 		}
+	}
+	return 0;
+}
+
+static int brcmf_pno_config_sched_scans(struct brcmf_if *ifp)
+{
+	struct brcmf_pno_info *pi;
+	struct brcmf_gscan_config *gscan_cfg;
+	struct brcmf_gscan_bucket_config *buckets;
+	struct brcmf_pno_config_le pno_cfg;
+	size_t gsz;
+	u32 scan_freq;
+	int err, n_buckets;
+
+	pi = ifp_to_pno(ifp);
+	n_buckets = brcmf_pno_prep_fwconfig(pi, &pno_cfg, &buckets,
+					    &scan_freq);
+	if (n_buckets < 0)
+		return n_buckets;
+
+	gsz = sizeof(*gscan_cfg) + (n_buckets - 1) * sizeof(*buckets);
+	gscan_cfg = kzalloc(gsz, GFP_KERNEL);
+	if (!gscan_cfg) {
+		err = -ENOMEM;
+		goto free_buckets;
+	}
 
-		ret = brcmf_pno_add_ssid(ifp, ssid,
-					 brcmf_is_ssid_active(ssid, req));
-		if (ret < 0)
-			brcmf_dbg(SCAN, ">>> PNO filter %s for ssid (%s)\n",
-				  ret == 0 ? "set" : "failed", ssid->ssid);
+	/* clean up everything */
+	err = brcmf_pno_clean(ifp);
+	if  (err < 0) {
+		brcmf_err("failed error=%d\n", err);
+		goto free_gscan;
 	}
+
+	/* configure pno */
+	err = brcmf_pno_config(ifp, scan_freq, 0, 0);
+	if (err < 0)
+		goto free_gscan;
+
+	err = brcmf_pno_channel_config(ifp, &pno_cfg);
+	if (err < 0)
+		goto clean;
+
+	gscan_cfg->version = cpu_to_le16(BRCMF_GSCAN_CFG_VERSION);
+	gscan_cfg->retry_threshold = GSCAN_RETRY_THRESHOLD;
+	gscan_cfg->buffer_threshold = GSCAN_BATCH_NO_THR_SET;
+	gscan_cfg->flags = BRCMF_GSCAN_CFG_ALL_BUCKETS_IN_1ST_SCAN;
+
+	gscan_cfg->count_of_channel_buckets = n_buckets;
+	memcpy(&gscan_cfg->bucket[0], buckets,
+	       n_buckets * sizeof(*buckets));
+
+	err = brcmf_fil_iovar_data_set(ifp, "pfn_gscan_cfg", gscan_cfg, gsz);
+
+	if (err < 0)
+		goto clean;
+
+	/* configure random mac */
+	err = brcmf_pno_set_random(ifp, pi);
+	if (err < 0)
+		goto clean;
+
+	err = brcmf_pno_config_networks(ifp, pi);
+	if (err < 0)
+		goto clean;
+
 	/* Enable the PNO */
-	ret = brcmf_fil_iovar_int_set(ifp, "pfn", 1);
+	err = brcmf_fil_iovar_int_set(ifp, "pfn", 1);
+
+clean:
+	if (err < 0)
+		brcmf_pno_clean(ifp);
+free_gscan:
+	kfree(gscan_cfg);
+free_buckets:
+	kfree(buckets);
+	return err;
+}
+
+int brcmf_pno_start_sched_scan(struct brcmf_if *ifp,
+			       struct cfg80211_sched_scan_request *req)
+{
+	struct brcmf_pno_info *pi;
+	int ret;
+
+	brcmf_dbg(TRACE, "reqid=%llu\n", req->reqid);
+
+	pi = ifp_to_pno(ifp);
+	ret = brcmf_pno_store_request(pi, req);
 	if (ret < 0)
-		brcmf_err("PNO enable failed!! ret=%d\n", ret);
+		return ret;
 
-	return ret;
+	ret = brcmf_pno_config_sched_scans(ifp);
+	if (ret < 0) {
+		brcmf_pno_remove_request(pi, req->reqid);
+		if (pi->n_reqs)
+			(void)brcmf_pno_config_sched_scans(ifp);
+		return ret;
+	}
+	return 0;
 }
 
+int brcmf_pno_stop_sched_scan(struct brcmf_if *ifp, u64 reqid)
+{
+	struct brcmf_pno_info *pi;
+	int err;
+
+	brcmf_dbg(TRACE, "reqid=%llu\n", reqid);
+
+	pi = ifp_to_pno(ifp);
+	err = brcmf_pno_remove_request(pi, reqid);
+	if (err)
+		return err;
+
+	brcmf_pno_clean(ifp);
+
+	if (pi->n_reqs)
+		(void)brcmf_pno_config_sched_scans(ifp);
+
+	return 0;
+}
+
+int brcmf_pno_attach(struct brcmf_cfg80211_info *cfg)
+{
+	struct brcmf_pno_info *pi;
+
+	brcmf_dbg(TRACE, "enter\n");
+	pi = kzalloc(sizeof(*pi), GFP_KERNEL);
+	if (!pi)
+		return -ENOMEM;
+
+	cfg->pno = pi;
+	mutex_init(&pi->req_lock);
+	return 0;
+}
+
+void brcmf_pno_detach(struct brcmf_cfg80211_info *cfg)
+{
+	struct brcmf_pno_info *pi;
+
+	brcmf_dbg(TRACE, "enter\n");
+	pi = cfg->pno;
+	cfg->pno = NULL;
+
+	WARN_ON(pi->n_reqs);
+	mutex_destroy(&pi->req_lock);
+	kfree(pi);
+}
+
+void brcmf_pno_wiphy_params(struct wiphy *wiphy, bool gscan)
+{
+	/* scheduled scan settings */
+	wiphy->max_sched_scan_reqs = gscan ? BRCMF_PNO_MAX_BUCKETS : 1;
+	wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
+	wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
+	wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
+	wiphy->max_sched_scan_plan_interval = BRCMF_PNO_SCHED_SCAN_MAX_PERIOD;
+}
+
+u64 brcmf_pno_find_reqid_by_bucket(struct brcmf_pno_info *pi, u32 bucket)
+{
+	u64 reqid = 0;
+
+	mutex_lock(&pi->req_lock);
+
+	if (bucket < pi->n_reqs)
+		reqid = pi->reqs[bucket]->reqid;
+
+	mutex_unlock(&pi->req_lock);
+	return reqid;
+}
+
+u32 brcmf_pno_get_bucket_map(struct brcmf_pno_info *pi,
+			     struct brcmf_pno_net_info_le *ni)
+{
+	struct cfg80211_sched_scan_request *req;
+	struct cfg80211_match_set *ms;
+	u32 bucket_map = 0;
+	int i, j;
+
+	mutex_lock(&pi->req_lock);
+	for (i = 0; i < pi->n_reqs; i++) {
+		req = pi->reqs[i];
+
+		if (!req->n_match_sets)
+			continue;
+		for (j = 0; j < req->n_match_sets; j++) {
+			ms = &req->match_sets[j];
+			if (ms->ssid.ssid_len == ni->SSID_len &&
+			    !memcmp(ms->ssid.ssid, ni->SSID, ni->SSID_len)) {
+				bucket_map |= BIT(i);
+				break;
+			}
+			if (is_valid_ether_addr(ms->bssid) &&
+			    !memcmp(ms->bssid, ni->bssid, ETH_ALEN)) {
+				bucket_map |= BIT(i);
+				break;
+			}
+		}
+	}
+	mutex_unlock(&pi->req_lock);
+	return bucket_map;
+}
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.h
index bae55b2af78c..cd9e35ae3b21 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.h
@@ -21,12 +21,8 @@
 #define BRCMF_PNO_SCHED_SCAN_MIN_PERIOD	10
 #define BRCMF_PNO_SCHED_SCAN_MAX_PERIOD	508
 
-/**
- * brcmf_pno_clean - disable and clear pno in firmware.
- *
- * @ifp: interface object used.
- */
-int brcmf_pno_clean(struct brcmf_if *ifp);
+/* forward declaration */
+struct brcmf_pno_info;
 
 /**
  * brcmf_pno_start_sched_scan - initiate scheduled scan on device.
@@ -37,4 +33,51 @@ int brcmf_pno_clean(struct brcmf_if *ifp);
 int brcmf_pno_start_sched_scan(struct brcmf_if *ifp,
 			       struct cfg80211_sched_scan_request *req);
 
+/**
+ * brcmf_pno_stop_sched_scan - terminate scheduled scan on device.
+ *
+ * @ifp: interface object used.
+ * @reqid: unique identifier of scan to be stopped.
+ */
+int brcmf_pno_stop_sched_scan(struct brcmf_if *ifp, u64 reqid);
+
+/**
+ * brcmf_pno_wiphy_params - fill scheduled scan parameters in wiphy instance.
+ *
+ * @wiphy: wiphy instance to be used.
+ * @gscan: indicates whether the device has support for g-scan feature.
+ */
+void brcmf_pno_wiphy_params(struct wiphy *wiphy, bool gscan);
+
+/**
+ * brcmf_pno_attach - allocate and attach module information.
+ *
+ * @cfg: cfg80211 context used.
+ */
+int brcmf_pno_attach(struct brcmf_cfg80211_info *cfg);
+
+/**
+ * brcmf_pno_detach - detach and free module information.
+ *
+ * @cfg: cfg80211 context used.
+ */
+void brcmf_pno_detach(struct brcmf_cfg80211_info *cfg);
+
+/**
+ * brcmf_pno_find_reqid_by_bucket - find request id for given bucket index.
+ *
+ * @pi: pno instance used.
+ * @bucket: index of firmware bucket.
+ */
+u64 brcmf_pno_find_reqid_by_bucket(struct brcmf_pno_info *pi, u32 bucket);
+
+/**
+ * brcmf_pno_get_bucket_map - determine bucket map for given netinfo.
+ *
+ * @pi: pno instance used.
+ * @netinfo: netinfo to compare with bucket configuration.
+ */
+u32 brcmf_pno_get_bucket_map(struct brcmf_pno_info *pi,
+			     struct brcmf_pno_net_info_le *netinfo);
+
 #endif /* _BRCMF_PNO_H */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 5653d6dd38f6..fbcbb4325936 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -612,7 +612,9 @@ BRCMF_FW_NVRAM_DEF(43340, "brcmfmac43340-sdio.bin", "brcmfmac43340-sdio.txt");
 BRCMF_FW_NVRAM_DEF(4335, "brcmfmac4335-sdio.bin", "brcmfmac4335-sdio.txt");
 BRCMF_FW_NVRAM_DEF(43362, "brcmfmac43362-sdio.bin", "brcmfmac43362-sdio.txt");
 BRCMF_FW_NVRAM_DEF(4339, "brcmfmac4339-sdio.bin", "brcmfmac4339-sdio.txt");
-BRCMF_FW_NVRAM_DEF(43430, "brcmfmac43430-sdio.bin", "brcmfmac43430-sdio.txt");
+BRCMF_FW_NVRAM_DEF(43430A0, "brcmfmac43430a0-sdio.bin", "brcmfmac43430a0-sdio.txt");
+/* Note the names are not postfixed with a1 for backward compatibility */
+BRCMF_FW_NVRAM_DEF(43430A1, "brcmfmac43430-sdio.bin", "brcmfmac43430-sdio.txt");
 BRCMF_FW_NVRAM_DEF(43455, "brcmfmac43455-sdio.bin", "brcmfmac43455-sdio.txt");
 BRCMF_FW_NVRAM_DEF(4354, "brcmfmac4354-sdio.bin", "brcmfmac4354-sdio.txt");
 BRCMF_FW_NVRAM_DEF(4356, "brcmfmac4356-sdio.bin", "brcmfmac4356-sdio.txt");
@@ -630,7 +632,8 @@ static struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = {
 	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4335_CHIP_ID, 0xFFFFFFFF, 4335),
 	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_43362_CHIP_ID, 0xFFFFFFFE, 43362),
 	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4339_CHIP_ID, 0xFFFFFFFF, 4339),
-	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_43430_CHIP_ID, 0xFFFFFFFF, 43430),
+	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_43430_CHIP_ID, 0x00000001, 43430A0),
+	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_43430_CHIP_ID, 0xFFFFFFFE, 43430A1),
 	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4345_CHIP_ID, 0xFFFFFFC0, 43455),
 	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4354_CHIP_ID, 0xFFFFFFFF, 4354),
 	BRCMF_FW_NVRAM_ENTRY(BRCM_CC_4356_CHIP_ID, 0xFFFFFFFF, 4356)
@@ -2034,6 +2037,7 @@ brcmf_sdio_wait_event_wakeup(struct brcmf_sdio *bus)
 
 static int brcmf_sdio_txpkt_hdalign(struct brcmf_sdio *bus, struct sk_buff *pkt)
 {
+	struct brcmf_bus_stats *stats;
 	u16 head_pad;
 	u8 *dat_buf;
 
@@ -2043,16 +2047,18 @@ static int brcmf_sdio_txpkt_hdalign(struct brcmf_sdio *bus, struct sk_buff *pkt)
 	head_pad = ((unsigned long)dat_buf % bus->head_align);
 	if (head_pad) {
 		if (skb_headroom(pkt) < head_pad) {
-			bus->sdiodev->bus_if->tx_realloc++;
-			head_pad = 0;
-			if (skb_cow(pkt, head_pad))
+			stats = &bus->sdiodev->bus_if->stats;
+			atomic_inc(&stats->pktcowed);
+			if (skb_cow_head(pkt, head_pad)) {
+				atomic_inc(&stats->pktcow_failed);
 				return -ENOMEM;
+			}
 		}
 		skb_push(pkt, head_pad);
 		dat_buf = (u8 *)(pkt->data);
-		memset(dat_buf, 0, head_pad + bus->tx_hdrlen);
 	}
-	return head_pad;
+	memset(dat_buf, 0, head_pad + bus->tx_hdrlen);
+	return 0;
 }
 
 /**