Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

35 files changed, 12715 insertions, 0 deletions

diff --git a/drivers/net/wireless/quantenna/Kconfig b/drivers/net/wireless/quantenna/Kconfig
new file mode 100644
index 0000000000..91d78c6856
--- /dev/null
+++ b/drivers/net/wireless/quantenna/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config WLAN_VENDOR_QUANTENNA
+	bool "Quantenna wireless cards support"
+	default y
+	help
+	  If you have a wireless card belonging to this class, say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all the
+	  questions about these cards. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if WLAN_VENDOR_QUANTENNA
+
+source "drivers/net/wireless/quantenna/qtnfmac/Kconfig"
+
+endif # WLAN_VENDOR_QUANTENNA
diff --git a/drivers/net/wireless/quantenna/Makefile b/drivers/net/wireless/quantenna/Makefile
new file mode 100644
index 0000000000..cea83d178d
--- /dev/null
+++ b/drivers/net/wireless/quantenna/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2015-2016 Quantenna Communications, Inc.
+# All rights reserved.
+#
+
+obj-$(CONFIG_QTNFMAC)	+= qtnfmac/
diff --git a/drivers/net/wireless/quantenna/qtnfmac/Kconfig b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
new file mode 100644
index 0000000000..b4a6df06da
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config QTNFMAC
+	tristate
+	depends on QTNFMAC_PCIE
+	default m if QTNFMAC_PCIE=m
+	default y if QTNFMAC_PCIE=y
+
+config QTNFMAC_PCIE
+	tristate "Quantenna QSR1000/QSR2000/QSR10g PCIe support"
+	default n
+	depends on PCI && CFG80211
+	select QTNFMAC
+	select FW_LOADER
+	select CRC32
+	help
+	  This option adds support for wireless adapters based on Quantenna
+	  802.11ac QSR10g (aka Pearl) and QSR1000/QSR2000 (aka Topaz)
+	  FullMAC chipsets running over PCIe.
+
+	  If you choose to build it as a module, two modules will be built:
+	  qtnfmac.ko and qtnfmac_pcie.ko.
diff --git a/drivers/net/wireless/quantenna/qtnfmac/Makefile b/drivers/net/wireless/quantenna/qtnfmac/Makefile
new file mode 100644
index 0000000000..40dffbd2ea
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/Makefile
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2015-2016 Quantenna Communications, Inc.
+# All rights reserved.
+#
+
+ccflags-y += \
+	-Idrivers/net/wireless/quantenna/qtnfmac
+
+obj-$(CONFIG_QTNFMAC) += qtnfmac.o
+qtnfmac-objs += \
+	core.o \
+	commands.o \
+	trans.o \
+	cfg80211.o \
+	event.o \
+	util.o \
+	qlink_util.o
+
+#
+
+obj-$(CONFIG_QTNFMAC_PCIE) += qtnfmac_pcie.o
+
+qtnfmac_pcie-objs += \
+	shm_ipc.o \
+	pcie/pcie.o \
+	pcie/pearl_pcie.o \
+	pcie/topaz_pcie.o
+
+qtnfmac_pcie-$(CONFIG_DEBUG_FS) += debug.o
diff --git a/drivers/net/wireless/quantenna/qtnfmac/bus.h b/drivers/net/wireless/quantenna/qtnfmac/bus.h
new file mode 100644
index 0000000000..3334c45aac
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/bus.h
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015 Quantenna Communications. All rights reserved. */
+
+#ifndef QTNFMAC_BUS_H
+#define QTNFMAC_BUS_H
+
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+
+#include "trans.h"
+#include "core.h"
+
+#define QTNF_MAX_MAC		3
+
+#define HBM_FRAME_META_MAGIC_PATTERN_S	0xAB
+#define HBM_FRAME_META_MAGIC_PATTERN_E	0xBA
+
+struct qtnf_frame_meta_info {
+	u8 magic_s;
+	u8 ifidx;
+	u8 macid;
+	u8 magic_e;
+} __packed;
+
+enum qtnf_fw_state {
+	QTNF_FW_STATE_DETACHED,
+	QTNF_FW_STATE_BOOT_DONE,
+	QTNF_FW_STATE_ACTIVE,
+	QTNF_FW_STATE_RUNNING,
+	QTNF_FW_STATE_DEAD,
+};
+
+struct qtnf_bus;
+
+struct qtnf_bus_ops {
+	/* mgmt methods */
+	int (*preinit)(struct qtnf_bus *);
+	void (*stop)(struct qtnf_bus *);
+
+	/* control path methods */
+	int (*control_tx)(struct qtnf_bus *, struct sk_buff *);
+
+	/* data xfer methods */
+	int (*data_tx)(struct qtnf_bus *bus, struct sk_buff *skb,
+		       unsigned int macid, unsigned int vifid);
+	void (*data_tx_timeout)(struct qtnf_bus *, struct net_device *);
+	void (*data_tx_use_meta_set)(struct qtnf_bus *bus, bool use_meta);
+	void (*data_rx_start)(struct qtnf_bus *);
+	void (*data_rx_stop)(struct qtnf_bus *);
+};
+
+struct qtnf_bus {
+	struct device *dev;
+	enum qtnf_fw_state fw_state;
+	u32 chip;
+	u32 chiprev;
+	struct qtnf_bus_ops *bus_ops;
+	struct qtnf_wmac *mac[QTNF_MAX_MAC];
+	struct qtnf_qlink_transport trans;
+	struct qtnf_hw_info hw_info;
+	struct napi_struct mux_napi;
+	struct net_device mux_dev;
+	struct workqueue_struct *workqueue;
+	struct workqueue_struct *hprio_workqueue;
+	struct work_struct fw_work;
+	struct work_struct event_work;
+	struct mutex bus_lock; /* lock during command/event processing */
+	struct dentry *dbg_dir;
+	struct notifier_block netdev_nb;
+	u8 hw_id[ETH_ALEN];
+	/* bus private data */
+	char bus_priv[] __aligned(sizeof(void *));
+};
+
+static inline bool qtnf_fw_is_up(struct qtnf_bus *bus)
+{
+	enum qtnf_fw_state state = bus->fw_state;
+
+	return ((state == QTNF_FW_STATE_ACTIVE) ||
+		(state == QTNF_FW_STATE_RUNNING));
+}
+
+static inline bool qtnf_fw_is_attached(struct qtnf_bus *bus)
+{
+	enum qtnf_fw_state state = bus->fw_state;
+
+	return ((state == QTNF_FW_STATE_ACTIVE) ||
+		(state == QTNF_FW_STATE_RUNNING) ||
+		(state == QTNF_FW_STATE_DEAD));
+}
+
+static inline void *get_bus_priv(struct qtnf_bus *bus)
+{
+	if (WARN(!bus, "qtnfmac: invalid bus pointer"))
+		return NULL;
+
+	return &bus->bus_priv;
+}
+
+/* callback wrappers */
+
+static inline int qtnf_bus_preinit(struct qtnf_bus *bus)
+{
+	if (!bus->bus_ops->preinit)
+		return 0;
+	return bus->bus_ops->preinit(bus);
+}
+
+static inline void qtnf_bus_stop(struct qtnf_bus *bus)
+{
+	if (!bus->bus_ops->stop)
+		return;
+	bus->bus_ops->stop(bus);
+}
+
+static inline int qtnf_bus_data_tx(struct qtnf_bus *bus, struct sk_buff *skb,
+				   unsigned int macid, unsigned int vifid)
+{
+	return bus->bus_ops->data_tx(bus, skb, macid, vifid);
+}
+
+static inline void
+qtnf_bus_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev)
+{
+	return bus->bus_ops->data_tx_timeout(bus, ndev);
+}
+
+static inline int qtnf_bus_control_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	return bus->bus_ops->control_tx(bus, skb);
+}
+
+static inline void qtnf_bus_data_rx_start(struct qtnf_bus *bus)
+{
+	return bus->bus_ops->data_rx_start(bus);
+}
+
+static inline void qtnf_bus_data_rx_stop(struct qtnf_bus *bus)
+{
+	return bus->bus_ops->data_rx_stop(bus);
+}
+
+static __always_inline void qtnf_bus_lock(struct qtnf_bus *bus)
+{
+	mutex_lock(&bus->bus_lock);
+}
+
+static __always_inline void qtnf_bus_unlock(struct qtnf_bus *bus)
+{
+	mutex_unlock(&bus->bus_lock);
+}
+
+/* interface functions from common layer */
+
+int qtnf_core_attach(struct qtnf_bus *bus);
+void qtnf_core_detach(struct qtnf_bus *bus);
+
+#endif /* QTNFMAC_BUS_H */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
new file mode 100644
index 0000000000..73e6f9408b
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -0,0 +1,1289 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include <linux/kernel.h>
+#include <linux/etherdevice.h>
+#include <linux/vmalloc.h>
+#include <linux/ieee80211.h>
+#include <net/cfg80211.h>
+#include <net/netlink.h>
+
+#include "cfg80211.h"
+#include "commands.h"
+#include "core.h"
+#include "util.h"
+#include "bus.h"
+
+/* Supported rates to be advertised to the cfg80211 */
+static struct ieee80211_rate qtnf_rates_2g[] = {
+	{.bitrate = 10, .hw_value = 2, },
+	{.bitrate = 20, .hw_value = 4, },
+	{.bitrate = 55, .hw_value = 11, },
+	{.bitrate = 110, .hw_value = 22, },
+	{.bitrate = 60, .hw_value = 12, },
+	{.bitrate = 90, .hw_value = 18, },
+	{.bitrate = 120, .hw_value = 24, },
+	{.bitrate = 180, .hw_value = 36, },
+	{.bitrate = 240, .hw_value = 48, },
+	{.bitrate = 360, .hw_value = 72, },
+	{.bitrate = 480, .hw_value = 96, },
+	{.bitrate = 540, .hw_value = 108, },
+};
+
+/* Supported rates to be advertised to the cfg80211 */
+static struct ieee80211_rate qtnf_rates_5g[] = {
+	{.bitrate = 60, .hw_value = 12, },
+	{.bitrate = 90, .hw_value = 18, },
+	{.bitrate = 120, .hw_value = 24, },
+	{.bitrate = 180, .hw_value = 36, },
+	{.bitrate = 240, .hw_value = 48, },
+	{.bitrate = 360, .hw_value = 72, },
+	{.bitrate = 480, .hw_value = 96, },
+	{.bitrate = 540, .hw_value = 108, },
+};
+
+/* Supported crypto cipher suits to be advertised to cfg80211 */
+static const u32 qtnf_cipher_suites[] = {
+	WLAN_CIPHER_SUITE_TKIP,
+	WLAN_CIPHER_SUITE_CCMP,
+	WLAN_CIPHER_SUITE_AES_CMAC,
+};
+
+/* Supported mgmt frame types to be advertised to cfg80211 */
+static const struct ieee80211_txrx_stypes
+qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = {
+	[NL80211_IFTYPE_STATION] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_AUTH >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
+		      BIT(IEEE80211_STYPE_AUTH >> 4),
+	},
+	[NL80211_IFTYPE_AP] = {
+		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_AUTH >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
+		      BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
+		      BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
+		      BIT(IEEE80211_STYPE_AUTH >> 4),
+	},
+};
+
+static int
+qtnf_validate_iface_combinations(struct wiphy *wiphy,
+				 struct qtnf_vif *change_vif,
+				 enum nl80211_iftype new_type)
+{
+	struct qtnf_wmac *mac;
+	struct qtnf_vif *vif;
+	int i;
+	int ret = 0;
+	struct iface_combination_params params = {
+		.num_different_channels = 1,
+	};
+
+	mac = wiphy_priv(wiphy);
+	if (!mac)
+		return -EFAULT;
+
+	for (i = 0; i < QTNF_MAX_INTF; i++) {
+		vif = &mac->iflist[i];
+		if (vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED)
+			params.iftype_num[vif->wdev.iftype]++;
+	}
+
+	if (change_vif) {
+		params.iftype_num[new_type]++;
+		params.iftype_num[change_vif->wdev.iftype]--;
+	} else {
+		params.iftype_num[new_type]++;
+	}
+
+	ret = cfg80211_check_combinations(wiphy, &params);
+
+	if (ret)
+		return ret;
+
+	/* Check repeater interface combination: primary VIF should be STA only.
+	 * STA (primary) + AP (secondary) is OK.
+	 * AP (primary) + STA (secondary) is not supported.
+	 */
+	vif = qtnf_mac_get_base_vif(mac);
+	if (vif && vif->wdev.iftype == NL80211_IFTYPE_AP &&
+	    vif != change_vif && new_type == NL80211_IFTYPE_STATION) {
+		ret = -EINVAL;
+		pr_err("MAC%u invalid combination: AP as primary repeater interface is not supported\n",
+		       mac->macid);
+	}
+
+	return ret;
+}
+
+static int
+qtnf_change_virtual_intf(struct wiphy *wiphy,
+			 struct net_device *dev,
+			 enum nl80211_iftype type,
+			 struct vif_params *params)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	u8 *mac_addr = NULL;
+	int use4addr = 0;
+	int ret;
+
+	ret = qtnf_validate_iface_combinations(wiphy, vif, type);
+	if (ret) {
+		pr_err("VIF%u.%u combination check: failed to set type %d\n",
+		       vif->mac->macid, vif->vifid, type);
+		return ret;
+	}
+
+	if (params) {
+		mac_addr = params->macaddr;
+		use4addr = params->use_4addr;
+	}
+
+	qtnf_scan_done(vif->mac, true);
+
+	ret = qtnf_cmd_send_change_intf_type(vif, type, use4addr, mac_addr);
+	if (ret) {
+		pr_err("VIF%u.%u: failed to change type to %d\n",
+		       vif->mac->macid, vif->vifid, type);
+		return ret;
+	}
+
+	vif->wdev.iftype = type;
+	return 0;
+}
+
+int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
+{
+	struct net_device *netdev =  wdev->netdev;
+	struct qtnf_vif *vif;
+	struct sk_buff *skb;
+
+	if (WARN_ON(!netdev))
+		return -EFAULT;
+
+	vif = qtnf_netdev_get_priv(wdev->netdev);
+
+	qtnf_scan_done(vif->mac, true);
+
+	/* Stop data */
+	netif_tx_stop_all_queues(netdev);
+	if (netif_carrier_ok(netdev))
+		netif_carrier_off(netdev);
+
+	while ((skb = skb_dequeue(&vif->high_pri_tx_queue)))
+		dev_kfree_skb_any(skb);
+
+	cancel_work_sync(&vif->high_pri_tx_work);
+
+	if (netdev->reg_state == NETREG_REGISTERED)
+		cfg80211_unregister_netdevice(netdev);
+
+	if (qtnf_cmd_send_del_intf(vif))
+		pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid,
+		       vif->vifid);
+
+	vif->netdev->ieee80211_ptr = NULL;
+	vif->netdev = NULL;
+	vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+
+	return 0;
+}
+
+static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy,
+						  const char *name,
+						  unsigned char name_assign_t,
+						  enum nl80211_iftype type,
+						  struct vif_params *params)
+{
+	struct qtnf_wmac *mac;
+	struct qtnf_vif *vif;
+	u8 *mac_addr = NULL;
+	int use4addr = 0;
+	int ret;
+
+	mac = wiphy_priv(wiphy);
+
+	if (!mac)
+		return ERR_PTR(-EFAULT);
+
+	ret = qtnf_validate_iface_combinations(wiphy, NULL, type);
+	if (ret) {
+		pr_err("MAC%u invalid combination: failed to add type %d\n",
+		       mac->macid, type);
+		return ERR_PTR(ret);
+	}
+
+	switch (type) {
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_AP:
+		vif = qtnf_mac_get_free_vif(mac);
+		if (!vif) {
+			pr_err("MAC%u: no free VIF available\n", mac->macid);
+			return ERR_PTR(-EFAULT);
+		}
+
+		eth_zero_addr(vif->mac_addr);
+		eth_zero_addr(vif->bssid);
+		vif->bss_priority = QTNF_DEF_BSS_PRIORITY;
+		memset(&vif->wdev, 0, sizeof(vif->wdev));
+		vif->wdev.wiphy = wiphy;
+		vif->wdev.iftype = type;
+		break;
+	default:
+		pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type);
+		return ERR_PTR(-ENOTSUPP);
+	}
+
+	if (params) {
+		mac_addr = params->macaddr;
+		use4addr = params->use_4addr;
+	}
+
+	ret = qtnf_cmd_send_add_intf(vif, type, use4addr, mac_addr);
+	if (ret) {
+		pr_err("VIF%u.%u: failed to add VIF %pM\n",
+		       mac->macid, vif->vifid, mac_addr);
+		goto err_cmd;
+	}
+
+	if (!is_valid_ether_addr(vif->mac_addr)) {
+		pr_err("VIF%u.%u: FW reported bad MAC: %pM\n",
+		       mac->macid, vif->vifid, vif->mac_addr);
+		ret = -EINVAL;
+		goto error_del_vif;
+	}
+
+	ret = qtnf_core_net_attach(mac, vif, name, name_assign_t);
+	if (ret) {
+		pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid,
+		       vif->vifid);
+		goto error_del_vif;
+	}
+
+	if (qtnf_hwcap_is_set(&mac->bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE)) {
+		ret = qtnf_cmd_netdev_changeupper(vif, vif->netdev->ifindex);
+		if (ret) {
+			cfg80211_unregister_netdevice(vif->netdev);
+			vif->netdev = NULL;
+			goto error_del_vif;
+		}
+	}
+
+	vif->wdev.netdev = vif->netdev;
+	return &vif->wdev;
+
+error_del_vif:
+	qtnf_cmd_send_del_intf(vif);
+err_cmd:
+	vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+
+	return ERR_PTR(ret);
+}
+
+static int qtnf_mgmt_set_appie(struct qtnf_vif *vif,
+			       const struct cfg80211_beacon_data *info)
+{
+	int ret = 0;
+
+	if (!info->beacon_ies || !info->beacon_ies_len) {
+		ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES,
+						   NULL, 0);
+	} else {
+		ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES,
+						   info->beacon_ies,
+						   info->beacon_ies_len);
+	}
+
+	if (ret)
+		goto out;
+
+	if (!info->proberesp_ies || !info->proberesp_ies_len) {
+		ret = qtnf_cmd_send_mgmt_set_appie(vif,
+						   QLINK_IE_SET_PROBE_RESP_IES,
+						   NULL, 0);
+	} else {
+		ret = qtnf_cmd_send_mgmt_set_appie(vif,
+						   QLINK_IE_SET_PROBE_RESP_IES,
+						   info->proberesp_ies,
+						   info->proberesp_ies_len);
+	}
+
+	if (ret)
+		goto out;
+
+	if (!info->assocresp_ies || !info->assocresp_ies_len) {
+		ret = qtnf_cmd_send_mgmt_set_appie(vif,
+						   QLINK_IE_SET_ASSOC_RESP,
+						   NULL, 0);
+	} else {
+		ret = qtnf_cmd_send_mgmt_set_appie(vif,
+						   QLINK_IE_SET_ASSOC_RESP,
+						   info->assocresp_ies,
+						   info->assocresp_ies_len);
+	}
+
+out:
+	return ret;
+}
+
+static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev,
+			      struct cfg80211_beacon_data *info)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+	return qtnf_mgmt_set_appie(vif, info);
+}
+
+static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev,
+			 struct cfg80211_ap_settings *settings)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	ret = qtnf_cmd_send_start_ap(vif, settings);
+	if (ret)
+		pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid,
+		       vif->vifid);
+
+	return ret;
+}
+
+static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev,
+			unsigned int link_id)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	qtnf_scan_done(vif->mac, true);
+
+	ret = qtnf_cmd_send_stop_ap(vif);
+	if (ret)
+		pr_err("VIF%u.%u: failed to stop AP operation in FW\n",
+		       vif->mac->macid, vif->vifid);
+
+	netif_carrier_off(vif->netdev);
+
+	return ret;
+}
+
+static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+{
+	struct qtnf_wmac *mac = wiphy_priv(wiphy);
+	struct qtnf_vif *vif;
+	int ret;
+
+	vif = qtnf_mac_get_base_vif(mac);
+	if (!vif) {
+		pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
+		return -EFAULT;
+	}
+
+	ret = qtnf_cmd_send_update_phy_params(mac, changed);
+	if (ret)
+		pr_err("MAC%u: failed to update PHY params\n", mac->macid);
+
+	return ret;
+}
+
+static void
+qtnf_update_mgmt_frame_registrations(struct wiphy *wiphy,
+				     struct wireless_dev *wdev,
+				     struct mgmt_frame_regs *upd)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
+	u16 new_mask = upd->interface_stypes;
+	u16 old_mask = vif->mgmt_frames_bitmask;
+	static const struct {
+		u16 mask, qlink_type;
+	} updates[] = {
+		{
+			.mask = BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
+				BIT(IEEE80211_STYPE_ASSOC_REQ >> 4),
+			.qlink_type = QLINK_MGMT_FRAME_ASSOC_REQ,
+		},
+		{
+			.mask = BIT(IEEE80211_STYPE_AUTH >> 4),
+			.qlink_type = QLINK_MGMT_FRAME_AUTH,
+		},
+		{
+			.mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
+			.qlink_type = QLINK_MGMT_FRAME_PROBE_REQ,
+		},
+		{
+			.mask = BIT(IEEE80211_STYPE_ACTION >> 4),
+			.qlink_type = QLINK_MGMT_FRAME_ACTION,
+		},
+	};
+	unsigned int i;
+
+	if (new_mask == old_mask)
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(updates); i++) {
+		u16 mask = updates[i].mask;
+		u16 qlink_frame_type = updates[i].qlink_type;
+		bool reg;
+
+		/* the ! are here due to the assoc/reassoc merge */
+		if (!(new_mask & mask) == !(old_mask & mask))
+			continue;
+
+		reg = new_mask & mask;
+
+		if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg))
+			pr_warn("VIF%u.%u: failed to %sregister qlink frame type 0x%x\n",
+				vif->mac->macid, vif->vifid, reg ? "" : "un",
+				qlink_frame_type);
+	}
+
+	vif->mgmt_frames_bitmask = new_mask;
+}
+
+static int
+qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
+	     struct cfg80211_mgmt_tx_params *params, u64 *cookie)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
+	const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf;
+	u32 short_cookie = get_random_u32();
+	u16 flags = 0;
+	u16 freq;
+
+	*cookie = short_cookie;
+
+	if (params->offchan)
+		flags |= QLINK_FRAME_TX_FLAG_OFFCHAN;
+
+	if (params->no_cck)
+		flags |= QLINK_FRAME_TX_FLAG_NO_CCK;
+
+	if (params->dont_wait_for_ack)
+		flags |= QLINK_FRAME_TX_FLAG_ACK_NOWAIT;
+
+	/* If channel is not specified, pass "freq = 0" to tell device
+	 * firmware to use current channel.
+	 */
+	if (params->chan)
+		freq = params->chan->center_freq;
+	else
+		freq = 0;
+
+	pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n",
+		 wdev->netdev->name, freq,
+		 le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da,
+		 params->len, short_cookie, flags);
+
+	return qtnf_cmd_send_frame(vif, short_cookie, flags,
+				   freq, params->buf, params->len);
+}
+
+static int
+qtnf_get_station(struct wiphy *wiphy, struct net_device *dev,
+		 const u8 *mac, struct station_info *sinfo)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+
+	sinfo->generation = vif->generation;
+	return qtnf_cmd_get_sta_info(vif, mac, sinfo);
+}
+
+static int
+qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev,
+		  int idx, u8 *mac, struct station_info *sinfo)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	const struct qtnf_sta_node *sta_node;
+	int ret;
+
+	switch (vif->wdev.iftype) {
+	case NL80211_IFTYPE_STATION:
+		if (idx != 0 || !vif->wdev.connected)
+			return -ENOENT;
+
+		ether_addr_copy(mac, vif->bssid);
+		break;
+	case NL80211_IFTYPE_AP:
+		sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx);
+		if (unlikely(!sta_node))
+			return -ENOENT;
+
+		ether_addr_copy(mac, sta_node->mac_addr);
+		break;
+	default:
+		return -ENOTSUPP;
+	}
+
+	ret = qtnf_cmd_get_sta_info(vif, mac, sinfo);
+
+	if (vif->wdev.iftype == NL80211_IFTYPE_AP) {
+		if (ret == -ENOENT) {
+			cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL);
+			sinfo->filled = 0;
+		}
+	}
+
+	sinfo->generation = vif->generation;
+
+	return ret;
+}
+
+static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev,
+			int link_id, u8 key_index, bool pairwise,
+			const u8 *mac_addr, struct key_params *params)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params);
+	if (ret)
+		pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n",
+		       vif->mac->macid, vif->vifid, params->cipher, key_index,
+		       pairwise);
+
+	return ret;
+}
+
+static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev,
+			int link_id, u8 key_index, bool pairwise,
+			const u8 *mac_addr)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr);
+	if (ret) {
+		if (ret == -ENOENT) {
+			pr_debug("VIF%u.%u: key index %d out of bounds\n",
+				 vif->mac->macid, vif->vifid, key_index);
+		} else {
+			pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n",
+			       vif->mac->macid, vif->vifid,
+			       key_index, pairwise);
+		}
+	}
+
+	return ret;
+}
+
+static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev,
+				int link_id, u8 key_index, bool unicast,
+				bool multicast)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast);
+	if (ret)
+		pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n",
+		       vif->mac->macid, vif->vifid, key_index, unicast,
+		       multicast);
+
+	return ret;
+}
+
+static int
+qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev,
+			  int link_id, u8 key_index)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index);
+	if (ret)
+		pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n",
+		       vif->mac->macid, vif->vifid, key_index);
+
+	return ret;
+}
+
+static int
+qtnf_change_station(struct wiphy *wiphy, struct net_device *dev,
+		    const u8 *mac, struct station_parameters *params)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	ret = qtnf_cmd_send_change_sta(vif, mac, params);
+	if (ret)
+		pr_err("VIF%u.%u: failed to change STA %pM\n",
+		       vif->mac->macid, vif->vifid, mac);
+
+	return ret;
+}
+
+static int
+qtnf_del_station(struct wiphy *wiphy, struct net_device *dev,
+		 struct station_del_parameters *params)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	if (params->mac &&
+	    (vif->wdev.iftype == NL80211_IFTYPE_AP) &&
+	    !is_broadcast_ether_addr(params->mac) &&
+	    !qtnf_sta_list_lookup(&vif->sta_list, params->mac))
+		return 0;
+
+	ret = qtnf_cmd_send_del_sta(vif, params);
+	if (ret)
+		pr_err("VIF%u.%u: failed to delete STA %pM\n",
+		       vif->mac->macid, vif->vifid, params->mac);
+
+	return ret;
+}
+
+static int
+qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
+{
+	struct qtnf_wmac *mac = wiphy_priv(wiphy);
+	int ret;
+
+	cancel_delayed_work_sync(&mac->scan_timeout);
+
+	mac->scan_req = request;
+
+	ret = qtnf_cmd_send_scan(mac);
+	if (ret) {
+		pr_err("MAC%u: failed to start scan\n", mac->macid);
+		mac->scan_req = NULL;
+		goto out;
+	}
+
+	pr_debug("MAC%u: scan started\n", mac->macid);
+	queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout,
+			   QTNF_SCAN_TIMEOUT_SEC * HZ);
+
+out:
+	return ret;
+}
+
+static int
+qtnf_connect(struct wiphy *wiphy, struct net_device *dev,
+	     struct cfg80211_connect_params *sme)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	if (sme->auth_type == NL80211_AUTHTYPE_SAE &&
+	    !(sme->flags & CONNECT_REQ_EXTERNAL_AUTH_SUPPORT)) {
+		pr_err("can not offload authentication to userspace\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (sme->bssid)
+		ether_addr_copy(vif->bssid, sme->bssid);
+	else
+		eth_zero_addr(vif->bssid);
+
+	ret = qtnf_cmd_send_connect(vif, sme);
+	if (ret)
+		pr_err("VIF%u.%u: failed to connect\n",
+		       vif->mac->macid, vif->vifid);
+
+	return ret;
+}
+
+static int
+qtnf_external_auth(struct wiphy *wiphy, struct net_device *dev,
+		   struct cfg80211_external_auth_params *auth)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	if (vif->wdev.iftype == NL80211_IFTYPE_STATION &&
+	    !ether_addr_equal(vif->bssid, auth->bssid))
+		pr_warn("unexpected bssid: %pM", auth->bssid);
+
+	ret = qtnf_cmd_send_external_auth(vif, auth);
+	if (ret)
+		pr_err("VIF%u.%u: failed to report external auth\n",
+		       vif->mac->macid, vif->vifid);
+
+	return ret;
+}
+
+static int
+qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev,
+		u16 reason_code)
+{
+	struct qtnf_wmac *mac = wiphy_priv(wiphy);
+	struct qtnf_vif *vif;
+	int ret = 0;
+
+	vif = qtnf_mac_get_base_vif(mac);
+	if (!vif) {
+		pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
+		return -EFAULT;
+	}
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	ret = qtnf_cmd_send_disconnect(vif, reason_code);
+	if (ret)
+		pr_err("VIF%u.%u: failed to disconnect\n",
+		       mac->macid, vif->vifid);
+
+	if (vif->wdev.connected) {
+		netif_carrier_off(vif->netdev);
+		cfg80211_disconnected(vif->netdev, reason_code,
+				      NULL, 0, true, GFP_KERNEL);
+	}
+
+	return ret;
+}
+
+static int
+qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev,
+		 int idx, struct survey_info *survey)
+{
+	struct qtnf_wmac *mac = wiphy_priv(wiphy);
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct ieee80211_supported_band *sband;
+	const struct cfg80211_chan_def *chandef = wdev_chandef(wdev, 0);
+	struct ieee80211_channel *chan;
+	int ret;
+
+	sband = wiphy->bands[NL80211_BAND_2GHZ];
+	if (sband && idx >= sband->n_channels) {
+		idx -= sband->n_channels;
+		sband = NULL;
+	}
+
+	if (!sband)
+		sband = wiphy->bands[NL80211_BAND_5GHZ];
+
+	if (!sband || idx >= sband->n_channels)
+		return -ENOENT;
+
+	chan = &sband->channels[idx];
+	survey->channel = chan;
+	survey->filled = 0x0;
+
+	if (chandef && chan == chandef->chan)
+		survey->filled = SURVEY_INFO_IN_USE;
+
+	ret = qtnf_cmd_get_chan_stats(mac, chan->center_freq, survey);
+	if (ret)
+		pr_debug("failed to get chan(%d) stats from card\n",
+			 chan->hw_value);
+
+	return ret;
+}
+
+static int
+qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
+		 unsigned int link_id, struct cfg80211_chan_def *chandef)
+{
+	struct net_device *ndev = wdev->netdev;
+	struct qtnf_vif *vif;
+	int ret;
+
+	if (!ndev)
+		return -ENODEV;
+
+	vif = qtnf_netdev_get_priv(wdev->netdev);
+
+	ret = qtnf_cmd_get_channel(vif, chandef);
+	if (ret) {
+		pr_err("%s: failed to get channel: %d\n", ndev->name, ret);
+		ret = -ENODATA;
+		goto out;
+	}
+
+	if (!cfg80211_chandef_valid(chandef)) {
+		pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n",
+		       ndev->name, chandef->chan->center_freq,
+		       chandef->center_freq1, chandef->center_freq2,
+		       chandef->width);
+		ret = -ENODATA;
+		goto out;
+	}
+
+out:
+	return ret;
+}
+
+static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev,
+			       struct cfg80211_csa_settings *params)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name,
+		 params->chandef.chan->hw_value, params->count,
+		 params->radar_required, params->block_tx);
+
+	if (!cfg80211_chandef_valid(&params->chandef)) {
+		pr_err("%s: invalid channel\n", dev->name);
+		return -EINVAL;
+	}
+
+	ret = qtnf_cmd_send_chan_switch(vif, params);
+	if (ret)
+		pr_warn("%s: failed to switch to channel (%u)\n",
+			dev->name, params->chandef.chan->hw_value);
+
+	return ret;
+}
+
+static int qtnf_start_radar_detection(struct wiphy *wiphy,
+				      struct net_device *ndev,
+				      struct cfg80211_chan_def *chandef,
+				      u32 cac_time_ms)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+	int ret;
+
+	if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD))
+		return -ENOTSUPP;
+
+	ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms);
+	if (ret)
+		pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret);
+
+	return ret;
+}
+
+static int qtnf_set_mac_acl(struct wiphy *wiphy,
+			    struct net_device *dev,
+			    const struct cfg80211_acl_data *params)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	ret = qtnf_cmd_set_mac_acl(vif, params);
+	if (ret)
+		pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret);
+
+	return ret;
+}
+
+static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
+			       bool enabled, int timeout)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY :
+				   QLINK_PM_OFF, timeout);
+	if (ret)
+		pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret);
+
+	return ret;
+}
+
+static int qtnf_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
+			     int *dbm)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
+	int ret;
+
+	ret = qtnf_cmd_get_tx_power(vif, dbm);
+	if (ret)
+		pr_err("MAC%u: failed to get Tx power\n", vif->mac->macid);
+
+	return ret;
+}
+
+static int qtnf_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
+			     enum nl80211_tx_power_setting type, int mbm)
+{
+	struct qtnf_vif *vif;
+	int ret;
+
+	if (wdev) {
+		vif = qtnf_netdev_get_priv(wdev->netdev);
+	} else {
+		struct qtnf_wmac *mac = wiphy_priv(wiphy);
+
+		vif = qtnf_mac_get_base_vif(mac);
+		if (!vif) {
+			pr_err("MAC%u: primary VIF is not configured\n",
+			       mac->macid);
+			return -EFAULT;
+		}
+	}
+
+	ret = qtnf_cmd_set_tx_power(vif, type, mbm);
+	if (ret)
+		pr_err("MAC%u: failed to set Tx power\n", vif->mac->macid);
+
+	return ret;
+}
+
+static int qtnf_update_owe_info(struct wiphy *wiphy, struct net_device *dev,
+				struct cfg80211_update_owe_info *owe_info)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
+	int ret;
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_AP)
+		return -EOPNOTSUPP;
+
+	ret = qtnf_cmd_send_update_owe(vif, owe_info);
+	if (ret)
+		pr_err("VIF%u.%u: failed to update owe info\n",
+		       vif->mac->macid, vif->vifid);
+
+	return ret;
+}
+
+#ifdef CONFIG_PM
+static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan)
+{
+	struct qtnf_wmac *mac = wiphy_priv(wiphy);
+	struct qtnf_vif *vif;
+	int ret = 0;
+
+	vif = qtnf_mac_get_base_vif(mac);
+	if (!vif) {
+		pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
+		ret = -EFAULT;
+		goto exit;
+	}
+
+	if (!wowlan) {
+		pr_debug("WoWLAN triggers are not enabled\n");
+		qtnf_virtual_intf_cleanup(vif->netdev);
+		goto exit;
+	}
+
+	qtnf_scan_done(vif->mac, true);
+
+	ret = qtnf_cmd_send_wowlan_set(vif, wowlan);
+	if (ret) {
+		pr_err("MAC%u: failed to set WoWLAN triggers\n",
+		       mac->macid);
+		goto exit;
+	}
+
+exit:
+	return ret;
+}
+
+static int qtnf_resume(struct wiphy *wiphy)
+{
+	struct qtnf_wmac *mac = wiphy_priv(wiphy);
+	struct qtnf_vif *vif;
+	int ret = 0;
+
+	vif = qtnf_mac_get_base_vif(mac);
+	if (!vif) {
+		pr_err("MAC%u: primary VIF is not configured\n", mac->macid);
+		return -EFAULT;
+	}
+
+	ret = qtnf_cmd_send_wowlan_set(vif, NULL);
+	if (ret)
+		pr_err("MAC%u: failed to reset WoWLAN triggers\n",
+		       mac->macid);
+
+	return ret;
+}
+
+static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled)
+{
+	struct qtnf_wmac *mac = wiphy_priv(wiphy);
+	struct qtnf_bus *bus = mac->bus;
+
+	device_set_wakeup_enable(bus->dev, enabled);
+}
+#endif
+
+static struct cfg80211_ops qtn_cfg80211_ops = {
+	.add_virtual_intf	= qtnf_add_virtual_intf,
+	.change_virtual_intf	= qtnf_change_virtual_intf,
+	.del_virtual_intf	= qtnf_del_virtual_intf,
+	.start_ap		= qtnf_start_ap,
+	.change_beacon		= qtnf_change_beacon,
+	.stop_ap		= qtnf_stop_ap,
+	.set_wiphy_params	= qtnf_set_wiphy_params,
+	.update_mgmt_frame_registrations =
+		qtnf_update_mgmt_frame_registrations,
+	.mgmt_tx		= qtnf_mgmt_tx,
+	.change_station		= qtnf_change_station,
+	.del_station		= qtnf_del_station,
+	.get_station		= qtnf_get_station,
+	.dump_station		= qtnf_dump_station,
+	.add_key		= qtnf_add_key,
+	.del_key		= qtnf_del_key,
+	.set_default_key	= qtnf_set_default_key,
+	.set_default_mgmt_key	= qtnf_set_default_mgmt_key,
+	.scan			= qtnf_scan,
+	.connect		= qtnf_connect,
+	.external_auth		= qtnf_external_auth,
+	.disconnect		= qtnf_disconnect,
+	.dump_survey		= qtnf_dump_survey,
+	.get_channel		= qtnf_get_channel,
+	.channel_switch		= qtnf_channel_switch,
+	.start_radar_detection	= qtnf_start_radar_detection,
+	.set_mac_acl		= qtnf_set_mac_acl,
+	.set_power_mgmt		= qtnf_set_power_mgmt,
+	.get_tx_power		= qtnf_get_tx_power,
+	.set_tx_power		= qtnf_set_tx_power,
+	.update_owe_info	= qtnf_update_owe_info,
+#ifdef CONFIG_PM
+	.suspend		= qtnf_suspend,
+	.resume			= qtnf_resume,
+	.set_wakeup		= qtnf_set_wakeup,
+#endif
+};
+
+static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy,
+				       struct regulatory_request *req)
+{
+	struct qtnf_wmac *mac = wiphy_priv(wiphy);
+	enum nl80211_band band;
+	int ret;
+
+	pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator,
+		 req->alpha2[0], req->alpha2[1]);
+
+	ret = qtnf_cmd_reg_notify(mac, req, qtnf_slave_radar_get(),
+				  qtnf_dfs_offload_get());
+	if (ret) {
+		pr_err("MAC%u: failed to update region to %c%c: %d\n",
+		       mac->macid, req->alpha2[0], req->alpha2[1], ret);
+		return;
+	}
+
+	for (band = 0; band < NUM_NL80211_BANDS; ++band) {
+		if (!wiphy->bands[band])
+			continue;
+
+		ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]);
+		if (ret)
+			pr_err("MAC%u: failed to update band %u\n",
+			       mac->macid, band);
+	}
+}
+
+struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus,
+				  struct platform_device *pdev)
+{
+	struct wiphy *wiphy;
+
+	if (qtnf_dfs_offload_get() &&
+	    qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_DFS_OFFLOAD))
+		qtn_cfg80211_ops.start_radar_detection = NULL;
+
+	if (!qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_PWR_MGMT))
+		qtn_cfg80211_ops.set_power_mgmt	= NULL;
+
+	wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac));
+	if (!wiphy)
+		return NULL;
+
+	if (pdev)
+		set_wiphy_dev(wiphy, &pdev->dev);
+	else
+		set_wiphy_dev(wiphy, bus->dev);
+
+	return wiphy;
+}
+
+static int
+qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info)
+{
+	struct ieee80211_iface_combination *if_comb;
+	size_t n_if_comb;
+	u16 interface_modes = 0;
+	size_t i, j;
+
+	if_comb = mac_info->if_comb;
+	n_if_comb = mac_info->n_if_comb;
+
+	if (!if_comb || !n_if_comb)
+		return -ENOENT;
+
+	for (i = 0; i < n_if_comb; i++) {
+		if_comb[i].radar_detect_widths = mac_info->radar_detect_widths;
+
+		for (j = 0; j < if_comb[i].n_limits; j++)
+			interface_modes |= if_comb[i].limits[j].types;
+	}
+
+	wiphy->iface_combinations = if_comb;
+	wiphy->n_iface_combinations = n_if_comb;
+	wiphy->interface_modes = interface_modes;
+
+	return 0;
+}
+
+int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac)
+{
+	struct wiphy *wiphy = priv_to_wiphy(mac);
+	struct qtnf_mac_info *macinfo = &mac->macinfo;
+	int ret;
+	bool regdomain_is_known;
+
+	if (!wiphy) {
+		pr_err("invalid wiphy pointer\n");
+		return -EFAULT;
+	}
+
+	wiphy->frag_threshold = macinfo->frag_thr;
+	wiphy->rts_threshold = macinfo->rts_thr;
+	wiphy->retry_short = macinfo->sretry_limit;
+	wiphy->retry_long = macinfo->lretry_limit;
+	wiphy->coverage_class = macinfo->coverage_class;
+
+	wiphy->max_scan_ssids =
+		(macinfo->max_scan_ssids) ? macinfo->max_scan_ssids : 1;
+	wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN;
+	wiphy->mgmt_stypes = qtnf_mgmt_stypes;
+	wiphy->max_remain_on_channel_duration = 5000;
+	wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs;
+	wiphy->max_num_csa_counters = 2;
+
+	ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo);
+	if (ret)
+		goto out;
+
+	/* Initialize cipher suits */
+	wiphy->cipher_suites = qtnf_cipher_suites;
+	wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites);
+	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
+			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
+			WIPHY_FLAG_AP_UAPSD |
+			WIPHY_FLAG_HAS_CHANNEL_SWITCH |
+			WIPHY_FLAG_4ADDR_STATION |
+			WIPHY_FLAG_NETNS_OK;
+	wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
+
+	if (qtnf_dfs_offload_get() &&
+	    qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_DFS_OFFLOAD))
+		wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD);
+
+	if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SCAN_DWELL))
+		wiphy_ext_feature_set(wiphy,
+				      NL80211_EXT_FEATURE_SET_SCAN_DWELL);
+
+	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
+				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;
+
+	wiphy->available_antennas_tx = macinfo->num_tx_chain;
+	wiphy->available_antennas_rx = macinfo->num_rx_chain;
+
+	wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta;
+	wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask;
+	wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask;
+
+	ether_addr_copy(wiphy->perm_addr, mac->macaddr);
+
+	if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_STA_INACT_TIMEOUT))
+		wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
+
+	if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR))
+		wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
+
+	if (!qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_OBSS_SCAN))
+		wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN;
+
+	if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SAE))
+		wiphy->features |= NL80211_FEATURE_SAE;
+
+#ifdef CONFIG_PM
+	if (macinfo->wowlan)
+		wiphy->wowlan = macinfo->wowlan;
+#endif
+
+	regdomain_is_known = isalpha(mac->rd->alpha2[0]) &&
+				isalpha(mac->rd->alpha2[1]);
+
+	if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_REG_UPDATE)) {
+		wiphy->reg_notifier = qtnf_cfg80211_reg_notifier;
+
+		if (mac->rd->alpha2[0] == '9' && mac->rd->alpha2[1] == '9') {
+			wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
+				REGULATORY_STRICT_REG;
+			wiphy_apply_custom_regulatory(wiphy, mac->rd);
+		} else if (regdomain_is_known) {
+			wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
+		}
+	} else {
+		wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
+	}
+
+	if (mac->macinfo.extended_capabilities_len) {
+		wiphy->extended_capabilities =
+			mac->macinfo.extended_capabilities;
+		wiphy->extended_capabilities_mask =
+			mac->macinfo.extended_capabilities_mask;
+		wiphy->extended_capabilities_len =
+			mac->macinfo.extended_capabilities_len;
+	}
+
+	strscpy(wiphy->fw_version, hw_info->fw_version,
+		sizeof(wiphy->fw_version));
+	wiphy->hw_version = hw_info->hw_version;
+
+	ret = wiphy_register(wiphy);
+	if (ret < 0)
+		goto out;
+
+	if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED)
+		ret = regulatory_set_wiphy_regd(wiphy, mac->rd);
+	else if (regdomain_is_known)
+		ret = regulatory_hint(wiphy, mac->rd->alpha2);
+
+out:
+	return ret;
+}
+
+void qtnf_netdev_updown(struct net_device *ndev, bool up)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+
+	if (qtnf_cmd_send_updown_intf(vif, up))
+		pr_err("failed to send %s command to VIF%u.%u\n",
+		       up ? "UP" : "DOWN", vif->mac->macid, vif->vifid);
+}
+
+void qtnf_virtual_intf_cleanup(struct net_device *ndev)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+	struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy);
+
+	if (vif->wdev.iftype == NL80211_IFTYPE_STATION)
+		qtnf_disconnect(vif->wdev.wiphy, ndev,
+				WLAN_REASON_DEAUTH_LEAVING);
+
+	qtnf_scan_done(mac, true);
+}
+
+void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif)
+{
+	if (vif->wdev.iftype == NL80211_IFTYPE_STATION)
+		cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING,
+				      NULL, 0, 1, GFP_KERNEL);
+
+	cfg80211_shutdown_all_interfaces(vif->wdev.wiphy);
+}
+
+void qtnf_band_init_rates(struct ieee80211_supported_band *band)
+{
+	switch (band->band) {
+	case NL80211_BAND_2GHZ:
+		band->bitrates = qtnf_rates_2g;
+		band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g);
+		break;
+	case NL80211_BAND_5GHZ:
+		band->bitrates = qtnf_rates_5g;
+		band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g);
+		break;
+	default:
+		band->bitrates = NULL;
+		band->n_bitrates = 0;
+		break;
+	}
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h
new file mode 100644
index 0000000000..c374857283
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_FMAC_CFG80211_H_
+#define _QTN_FMAC_CFG80211_H_
+
+#include <net/cfg80211.h>
+
+#include "core.h"
+
+int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac);
+int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev);
+void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif);
+void qtnf_band_init_rates(struct ieee80211_supported_band *band);
+void qtnf_band_setup_htvht_caps(struct qtnf_mac_info *macinfo,
+				struct ieee80211_supported_band *band);
+
+#endif /* _QTN_FMAC_CFG80211_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c
new file mode 100644
index 0000000000..68ae9c7ea9
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -0,0 +1,2769 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include <linux/types.h>
+#include <linux/skbuff.h>
+
+#include "cfg80211.h"
+#include "core.h"
+#include "qlink.h"
+#include "qlink_util.h"
+#include "bus.h"
+#include "commands.h"
+
+/* Let device itself to select best values for current conditions */
+#define QTNF_SCAN_TIME_AUTO	0
+
+#define QTNF_SCAN_DWELL_ACTIVE_DEFAULT		90
+#define QTNF_SCAN_DWELL_PASSIVE_DEFAULT		100
+#define QTNF_SCAN_SAMPLE_DURATION_DEFAULT	QTNF_SCAN_TIME_AUTO
+
+static int qtnf_cmd_check_reply_header(const struct qlink_resp *resp,
+				       u16 cmd_id, u8 mac_id, u8 vif_id,
+				       size_t resp_size)
+{
+	if (unlikely(le16_to_cpu(resp->cmd_id) != cmd_id)) {
+		pr_warn("VIF%u.%u CMD%x: bad cmd_id in response: 0x%.4X\n",
+			mac_id, vif_id, cmd_id, le16_to_cpu(resp->cmd_id));
+		return -EINVAL;
+	}
+
+	if (unlikely(resp->macid != mac_id)) {
+		pr_warn("VIF%u.%u CMD%x: bad MAC in response: %u\n",
+			mac_id, vif_id, cmd_id, resp->macid);
+		return -EINVAL;
+	}
+
+	if (unlikely(resp->vifid != vif_id)) {
+		pr_warn("VIF%u.%u CMD%x: bad VIF in response: %u\n",
+			mac_id, vif_id, cmd_id, resp->vifid);
+		return -EINVAL;
+	}
+
+	if (unlikely(le16_to_cpu(resp->mhdr.len) < resp_size)) {
+		pr_warn("VIF%u.%u CMD%x: bad response size %u < %zu\n",
+			mac_id, vif_id, cmd_id,
+			le16_to_cpu(resp->mhdr.len), resp_size);
+		return -ENOSPC;
+	}
+
+	return 0;
+}
+
+static int qtnf_cmd_resp_result_decode(enum qlink_cmd_result qcode)
+{
+	switch (qcode) {
+	case QLINK_CMD_RESULT_OK:
+		return 0;
+	case QLINK_CMD_RESULT_INVALID:
+		return -EINVAL;
+	case QLINK_CMD_RESULT_ENOTSUPP:
+		return -ENOTSUPP;
+	case QLINK_CMD_RESULT_ENOTFOUND:
+		return -ENOENT;
+	case QLINK_CMD_RESULT_EALREADY:
+		return -EALREADY;
+	case QLINK_CMD_RESULT_EADDRINUSE:
+		return -EADDRINUSE;
+	case QLINK_CMD_RESULT_EADDRNOTAVAIL:
+		return -EADDRNOTAVAIL;
+	case QLINK_CMD_RESULT_EBUSY:
+		return -EBUSY;
+	default:
+		return -EFAULT;
+	}
+}
+
+static int qtnf_cmd_send_with_reply(struct qtnf_bus *bus,
+				    struct sk_buff *cmd_skb,
+				    struct sk_buff **response_skb,
+				    size_t const_resp_size,
+				    size_t *var_resp_size)
+{
+	struct qlink_cmd *cmd;
+	struct qlink_resp *resp = NULL;
+	struct sk_buff *resp_skb = NULL;
+	int resp_res = 0;
+	u16 cmd_id;
+	u8 mac_id;
+	u8 vif_id;
+	int ret;
+
+	cmd = (struct qlink_cmd *)cmd_skb->data;
+	cmd_id = le16_to_cpu(cmd->cmd_id);
+	mac_id = cmd->macid;
+	vif_id = cmd->vifid;
+	cmd->mhdr.len = cpu_to_le16(cmd_skb->len);
+
+	pr_debug("VIF%u.%u cmd=0x%.4X\n", mac_id, vif_id, cmd_id);
+
+	if (!qtnf_fw_is_up(bus) && cmd_id != QLINK_CMD_FW_INIT) {
+		pr_warn("VIF%u.%u: drop cmd 0x%.4X in fw state %d\n",
+			mac_id, vif_id, cmd_id, bus->fw_state);
+		dev_kfree_skb(cmd_skb);
+		return -ENODEV;
+	}
+
+	ret = qtnf_trans_send_cmd_with_resp(bus, cmd_skb, &resp_skb);
+	if (ret)
+		goto out;
+
+	if (WARN_ON(!resp_skb || !resp_skb->data)) {
+		ret = -EFAULT;
+		goto out;
+	}
+
+	resp = (struct qlink_resp *)resp_skb->data;
+	resp_res = le16_to_cpu(resp->result);
+	ret = qtnf_cmd_check_reply_header(resp, cmd_id, mac_id, vif_id,
+					  const_resp_size);
+	if (ret)
+		goto out;
+
+	/* Return length of variable part of response */
+	if (response_skb && var_resp_size)
+		*var_resp_size = le16_to_cpu(resp->mhdr.len) - const_resp_size;
+
+out:
+	if (response_skb)
+		*response_skb = resp_skb;
+	else
+		consume_skb(resp_skb);
+
+	if (!ret)
+		return qtnf_cmd_resp_result_decode(resp_res);
+
+	pr_warn("VIF%u.%u: cmd 0x%.4X failed: %d\n",
+		mac_id, vif_id, cmd_id, ret);
+
+	return ret;
+}
+
+static inline int qtnf_cmd_send(struct qtnf_bus *bus, struct sk_buff *cmd_skb)
+{
+	return qtnf_cmd_send_with_reply(bus, cmd_skb, NULL,
+					sizeof(struct qlink_resp), NULL);
+}
+
+static struct sk_buff *qtnf_cmd_alloc_new_cmdskb(u8 macid, u8 vifid, u16 cmd_no,
+						 size_t cmd_size)
+{
+	struct qlink_cmd *cmd;
+	struct sk_buff *cmd_skb;
+
+	cmd_skb = __dev_alloc_skb(sizeof(*cmd) +
+				  QTNF_MAX_CMD_BUF_SIZE, GFP_KERNEL);
+	if (unlikely(!cmd_skb)) {
+		pr_err("VIF%u.%u CMD %u: alloc failed\n", macid, vifid, cmd_no);
+		return NULL;
+	}
+
+	skb_put_zero(cmd_skb, cmd_size);
+
+	cmd = (struct qlink_cmd *)cmd_skb->data;
+	cmd->mhdr.len = cpu_to_le16(cmd_skb->len);
+	cmd->mhdr.type = cpu_to_le16(QLINK_MSG_TYPE_CMD);
+	cmd->cmd_id = cpu_to_le16(cmd_no);
+	cmd->macid = macid;
+	cmd->vifid = vifid;
+
+	return cmd_skb;
+}
+
+static void qtnf_cmd_tlv_ie_set_add(struct sk_buff *cmd_skb, u8 frame_type,
+				    const u8 *buf, size_t len)
+{
+	struct qlink_tlv_ie_set *tlv;
+
+	tlv = (struct qlink_tlv_ie_set *)skb_put(cmd_skb, sizeof(*tlv) +
+						 round_up(len, QLINK_ALIGN));
+	tlv->hdr.type = cpu_to_le16(QTN_TLV_ID_IE_SET);
+	tlv->hdr.len = cpu_to_le16(len + sizeof(*tlv) - sizeof(tlv->hdr));
+	tlv->type = frame_type;
+	tlv->flags = 0;
+
+	if (len && buf)
+		memcpy(tlv->ie_data, buf, len);
+}
+
+static bool qtnf_cmd_start_ap_can_fit(const struct qtnf_vif *vif,
+				      const struct cfg80211_ap_settings *s)
+{
+	unsigned int len = sizeof(struct qlink_cmd_start_ap);
+
+	len += round_up(s->ssid_len, QLINK_ALIGN);
+	len += round_up(s->beacon.head_len, QLINK_ALIGN);
+	len += round_up(s->beacon.tail_len, QLINK_ALIGN);
+	len += round_up(s->beacon.beacon_ies_len, QLINK_ALIGN);
+	len += round_up(s->beacon.proberesp_ies_len, QLINK_ALIGN);
+	len += round_up(s->beacon.assocresp_ies_len, QLINK_ALIGN);
+	len += round_up(s->beacon.probe_resp_len, QLINK_ALIGN);
+
+	if (cfg80211_chandef_valid(&s->chandef))
+		len += sizeof(struct qlink_tlv_chandef);
+
+	if (s->acl) {
+		unsigned int acl_len = struct_size(s->acl, mac_addrs,
+						   s->acl->n_acl_entries);
+
+		len += sizeof(struct qlink_tlv_hdr) +
+			round_up(acl_len, QLINK_ALIGN);
+	}
+
+	if (len > (sizeof(struct qlink_cmd) + QTNF_MAX_CMD_BUF_SIZE)) {
+		pr_err("VIF%u.%u: can not fit AP settings: %u\n",
+		       vif->mac->macid, vif->vifid, len);
+		return false;
+	}
+
+	return true;
+}
+
+static void qtnf_cmd_tlv_ie_ext_add(struct sk_buff *cmd_skb, u8 eid_ext,
+				    const void *buf, size_t len)
+{
+	struct qlink_tlv_ext_ie *tlv;
+
+	tlv = (struct qlink_tlv_ext_ie *)skb_put(cmd_skb, sizeof(*tlv) + len);
+	tlv->hdr.type = cpu_to_le16(WLAN_EID_EXTENSION);
+	tlv->hdr.len = cpu_to_le16(sizeof(*tlv) + len - sizeof(tlv->hdr));
+	tlv->eid_ext = eid_ext;
+
+	if (len && buf)
+		memcpy(tlv->ie_data, buf, len);
+}
+
+int qtnf_cmd_send_start_ap(struct qtnf_vif *vif,
+			   const struct cfg80211_ap_settings *s)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_start_ap *cmd;
+	struct qlink_auth_encr *aen;
+	int ret;
+	int i;
+	int n;
+
+	if (!qtnf_cmd_start_ap_can_fit(vif, s))
+		return -E2BIG;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_START_AP,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_start_ap *)cmd_skb->data;
+	cmd->dtim_period = s->dtim_period;
+	cmd->beacon_interval = cpu_to_le16(s->beacon_interval);
+	cmd->hidden_ssid = qlink_hidden_ssid_nl2q(s->hidden_ssid);
+	cmd->inactivity_timeout = cpu_to_le16(s->inactivity_timeout);
+	cmd->smps_mode = s->smps_mode;
+	cmd->p2p_ctwindow = s->p2p_ctwindow;
+	cmd->p2p_opp_ps = s->p2p_opp_ps;
+	cmd->pbss = s->pbss;
+	cmd->ht_required = s->ht_required;
+	cmd->vht_required = s->vht_required;
+	cmd->twt_responder = s->twt_responder;
+	if (s->he_obss_pd.enable) {
+		cmd->sr_params.sr_control |= QLINK_SR_SRG_INFORMATION_PRESENT;
+		cmd->sr_params.srg_obss_pd_min_offset =
+			s->he_obss_pd.min_offset;
+		cmd->sr_params.srg_obss_pd_max_offset =
+			s->he_obss_pd.max_offset;
+	}
+
+	aen = &cmd->aen;
+	aen->auth_type = s->auth_type;
+	aen->privacy = !!s->privacy;
+	aen->wpa_versions = cpu_to_le32(s->crypto.wpa_versions);
+	aen->cipher_group = cpu_to_le32(s->crypto.cipher_group);
+	aen->n_ciphers_pairwise = cpu_to_le32(s->crypto.n_ciphers_pairwise);
+	for (i = 0; i < QLINK_MAX_NR_CIPHER_SUITES; i++)
+		aen->ciphers_pairwise[i] =
+				cpu_to_le32(s->crypto.ciphers_pairwise[i]);
+	n = min(QLINK_MAX_NR_AKM_SUITES, s->crypto.n_akm_suites);
+	aen->n_akm_suites = cpu_to_le32(n);
+	for (i = 0; i < n; i++)
+		aen->akm_suites[i] = cpu_to_le32(s->crypto.akm_suites[i]);
+	aen->control_port = s->crypto.control_port;
+	aen->control_port_no_encrypt = s->crypto.control_port_no_encrypt;
+	aen->control_port_ethertype =
+		cpu_to_le16(be16_to_cpu(s->crypto.control_port_ethertype));
+
+	if (s->ssid && s->ssid_len > 0 && s->ssid_len <= IEEE80211_MAX_SSID_LEN)
+		qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID, s->ssid,
+					 s->ssid_len);
+
+	if (cfg80211_chandef_valid(&s->chandef)) {
+		struct qlink_tlv_chandef *chtlv =
+			(struct qlink_tlv_chandef *)skb_put(cmd_skb,
+							    sizeof(*chtlv));
+
+		chtlv->hdr.type = cpu_to_le16(QTN_TLV_ID_CHANDEF);
+		chtlv->hdr.len = cpu_to_le16(sizeof(*chtlv) -
+					     sizeof(chtlv->hdr));
+		qlink_chandef_cfg2q(&s->chandef, &chtlv->chdef);
+	}
+
+	qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_HEAD,
+				s->beacon.head, s->beacon.head_len);
+	qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_TAIL,
+				s->beacon.tail, s->beacon.tail_len);
+	qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_IES,
+				s->beacon.beacon_ies, s->beacon.beacon_ies_len);
+	qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_PROBE_RESP,
+				s->beacon.probe_resp, s->beacon.probe_resp_len);
+	qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_PROBE_RESP_IES,
+				s->beacon.proberesp_ies,
+				s->beacon.proberesp_ies_len);
+	qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_ASSOC_RESP,
+				s->beacon.assocresp_ies,
+				s->beacon.assocresp_ies_len);
+
+	if (s->ht_cap) {
+		struct qlink_tlv_hdr *tlv = (struct qlink_tlv_hdr *)
+			skb_put(cmd_skb, sizeof(*tlv) +
+				round_up(sizeof(*s->ht_cap), QLINK_ALIGN));
+
+		tlv->type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
+		tlv->len = cpu_to_le16(sizeof(*s->ht_cap));
+		memcpy(tlv->val, s->ht_cap, sizeof(*s->ht_cap));
+	}
+
+	if (s->vht_cap) {
+		struct qlink_tlv_hdr *tlv = (struct qlink_tlv_hdr *)
+			skb_put(cmd_skb, sizeof(*tlv) + sizeof(*s->vht_cap));
+
+		tlv->type = cpu_to_le16(WLAN_EID_VHT_CAPABILITY);
+		tlv->len = cpu_to_le16(sizeof(*s->vht_cap));
+		memcpy(tlv->val, s->vht_cap, sizeof(*s->vht_cap));
+	}
+
+	if (s->he_cap)
+		qtnf_cmd_tlv_ie_ext_add(cmd_skb, WLAN_EID_EXT_HE_CAPABILITY,
+					s->he_cap, sizeof(*s->he_cap));
+
+	if (s->acl) {
+		size_t acl_size = struct_size(s->acl, mac_addrs,
+					      s->acl->n_acl_entries);
+		struct qlink_tlv_hdr *tlv =
+			skb_put(cmd_skb,
+				sizeof(*tlv) + round_up(acl_size, QLINK_ALIGN));
+
+		tlv->type = cpu_to_le16(QTN_TLV_ID_ACL_DATA);
+		tlv->len = cpu_to_le16(acl_size);
+		qlink_acl_data_cfg2q(s->acl, (struct qlink_acl_data *)tlv->val);
+	}
+
+	qtnf_bus_lock(vif->mac->bus);
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+	if (ret)
+		goto out;
+
+	netif_carrier_on(vif->netdev);
+
+out:
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_stop_ap(struct qtnf_vif *vif)
+{
+	struct sk_buff *cmd_skb;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_STOP_AP,
+					    sizeof(struct qlink_cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_register_mgmt(struct qtnf_vif *vif, u16 frame_type, bool reg)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_mgmt_frame_register *cmd;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_REGISTER_MGMT,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_mgmt_frame_register *)cmd_skb->data;
+	cmd->frame_type = cpu_to_le16(frame_type);
+	cmd->do_register = reg;
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_frame(struct qtnf_vif *vif, u32 cookie, u16 flags,
+			u16 freq, const u8 *buf, size_t len)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_frame_tx *cmd;
+	int ret;
+
+	if (sizeof(*cmd) + len > QTNF_MAX_CMD_BUF_SIZE) {
+		pr_warn("VIF%u.%u: frame is too big: %zu\n", vif->mac->macid,
+			vif->vifid, len);
+		return -E2BIG;
+	}
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_SEND_FRAME,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_frame_tx *)cmd_skb->data;
+	cmd->cookie = cpu_to_le32(cookie);
+	cmd->freq = cpu_to_le16(freq);
+	cmd->flags = cpu_to_le16(flags);
+
+	if (len && buf)
+		qtnf_cmd_skb_put_buffer(cmd_skb, buf, len);
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_mgmt_set_appie(struct qtnf_vif *vif, u8 frame_type,
+				 const u8 *buf, size_t len)
+{
+	struct sk_buff *cmd_skb;
+	int ret;
+
+	if (len > QTNF_MAX_CMD_BUF_SIZE) {
+		pr_warn("VIF%u.%u: %u frame is too big: %zu\n", vif->mac->macid,
+			vif->vifid, frame_type, len);
+		return -E2BIG;
+	}
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_MGMT_SET_APPIE,
+					    sizeof(struct qlink_cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_cmd_tlv_ie_set_add(cmd_skb, frame_type, buf, len);
+
+	qtnf_bus_lock(vif->mac->bus);
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+static void
+qtnf_sta_info_parse_rate(struct rate_info *rate_dst,
+			 const struct qlink_sta_info_rate *rate_src)
+{
+	rate_dst->legacy = get_unaligned_le16(&rate_src->rate) * 10;
+
+	rate_dst->mcs = rate_src->mcs;
+	rate_dst->nss = rate_src->nss;
+	rate_dst->flags = 0;
+
+	switch (rate_src->bw) {
+	case QLINK_CHAN_WIDTH_5:
+		rate_dst->bw = RATE_INFO_BW_5;
+		break;
+	case QLINK_CHAN_WIDTH_10:
+		rate_dst->bw = RATE_INFO_BW_10;
+		break;
+	case QLINK_CHAN_WIDTH_20:
+	case QLINK_CHAN_WIDTH_20_NOHT:
+		rate_dst->bw = RATE_INFO_BW_20;
+		break;
+	case QLINK_CHAN_WIDTH_40:
+		rate_dst->bw = RATE_INFO_BW_40;
+		break;
+	case QLINK_CHAN_WIDTH_80:
+		rate_dst->bw = RATE_INFO_BW_80;
+		break;
+	case QLINK_CHAN_WIDTH_160:
+		rate_dst->bw = RATE_INFO_BW_160;
+		break;
+	default:
+		rate_dst->bw = 0;
+		break;
+	}
+
+	if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_HT_MCS)
+		rate_dst->flags |= RATE_INFO_FLAGS_MCS;
+	else if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_VHT_MCS)
+		rate_dst->flags |= RATE_INFO_FLAGS_VHT_MCS;
+	else if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_HE_MCS)
+		rate_dst->flags |= RATE_INFO_FLAGS_HE_MCS;
+
+	if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_SHORT_GI)
+		rate_dst->flags |= RATE_INFO_FLAGS_SHORT_GI;
+}
+
+static void
+qtnf_sta_info_parse_flags(struct nl80211_sta_flag_update *dst,
+			  const struct qlink_sta_info_state *src)
+{
+	u32 mask, value;
+
+	dst->mask = 0;
+	dst->set = 0;
+
+	mask = le32_to_cpu(src->mask);
+	value = le32_to_cpu(src->value);
+
+	if (mask & QLINK_STA_FLAG_AUTHORIZED) {
+		dst->mask |= BIT(NL80211_STA_FLAG_AUTHORIZED);
+		if (value & QLINK_STA_FLAG_AUTHORIZED)
+			dst->set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
+	}
+
+	if (mask & QLINK_STA_FLAG_SHORT_PREAMBLE) {
+		dst->mask |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
+		if (value & QLINK_STA_FLAG_SHORT_PREAMBLE)
+			dst->set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
+	}
+
+	if (mask & QLINK_STA_FLAG_WME) {
+		dst->mask |= BIT(NL80211_STA_FLAG_WME);
+		if (value & QLINK_STA_FLAG_WME)
+			dst->set |= BIT(NL80211_STA_FLAG_WME);
+	}
+
+	if (mask & QLINK_STA_FLAG_MFP) {
+		dst->mask |= BIT(NL80211_STA_FLAG_MFP);
+		if (value & QLINK_STA_FLAG_MFP)
+			dst->set |= BIT(NL80211_STA_FLAG_MFP);
+	}
+
+	if (mask & QLINK_STA_FLAG_AUTHENTICATED) {
+		dst->mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
+		if (value & QLINK_STA_FLAG_AUTHENTICATED)
+			dst->set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
+	}
+
+	if (mask & QLINK_STA_FLAG_TDLS_PEER) {
+		dst->mask |= BIT(NL80211_STA_FLAG_TDLS_PEER);
+		if (value & QLINK_STA_FLAG_TDLS_PEER)
+			dst->set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
+	}
+
+	if (mask & QLINK_STA_FLAG_ASSOCIATED) {
+		dst->mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
+		if (value & QLINK_STA_FLAG_ASSOCIATED)
+			dst->set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
+	}
+}
+
+static void
+qtnf_cmd_sta_info_parse(struct station_info *sinfo, const u8 *data,
+			size_t resp_size)
+{
+	const struct qlink_tlv_hdr *tlv;
+	const struct qlink_sta_stats *stats = NULL;
+	const u8 *map = NULL;
+	unsigned int map_len = 0;
+	unsigned int stats_len = 0;
+	u16 tlv_len;
+
+#define qtnf_sta_stat_avail(stat_name, bitn)	\
+	(qtnf_utils_is_bit_set(map, bitn, map_len) && \
+	 (offsetofend(struct qlink_sta_stats, stat_name) <= stats_len))
+
+	qlink_for_each_tlv(tlv, data, resp_size) {
+		tlv_len = le16_to_cpu(tlv->len);
+
+		switch (le16_to_cpu(tlv->type)) {
+		case QTN_TLV_ID_BITMAP:
+			map_len = tlv_len;
+			map = tlv->val;
+			break;
+		case QTN_TLV_ID_STA_STATS:
+			stats_len = tlv_len;
+			stats = (const struct qlink_sta_stats *)tlv->val;
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (!qlink_tlv_parsing_ok(tlv, data, resp_size)) {
+		pr_err("Malformed TLV buffer\n");
+		return;
+	}
+
+	if (!map || !stats)
+		return;
+
+	if (qtnf_sta_stat_avail(inactive_time, QLINK_STA_INFO_INACTIVE_TIME)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME);
+		sinfo->inactive_time = le32_to_cpu(stats->inactive_time);
+	}
+
+	if (qtnf_sta_stat_avail(connected_time,
+				QLINK_STA_INFO_CONNECTED_TIME)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CONNECTED_TIME);
+		sinfo->connected_time = le32_to_cpu(stats->connected_time);
+	}
+
+	if (qtnf_sta_stat_avail(signal, QLINK_STA_INFO_SIGNAL)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
+		sinfo->signal = stats->signal - QLINK_RSSI_OFFSET;
+	}
+
+	if (qtnf_sta_stat_avail(signal_avg, QLINK_STA_INFO_SIGNAL_AVG)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
+		sinfo->signal_avg = stats->signal_avg - QLINK_RSSI_OFFSET;
+	}
+
+	if (qtnf_sta_stat_avail(rxrate, QLINK_STA_INFO_RX_BITRATE)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE);
+		qtnf_sta_info_parse_rate(&sinfo->rxrate, &stats->rxrate);
+	}
+
+	if (qtnf_sta_stat_avail(txrate, QLINK_STA_INFO_TX_BITRATE)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
+		qtnf_sta_info_parse_rate(&sinfo->txrate, &stats->txrate);
+	}
+
+	if (qtnf_sta_stat_avail(sta_flags, QLINK_STA_INFO_STA_FLAGS)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_STA_FLAGS);
+		qtnf_sta_info_parse_flags(&sinfo->sta_flags, &stats->sta_flags);
+	}
+
+	if (qtnf_sta_stat_avail(rx_bytes, QLINK_STA_INFO_RX_BYTES)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES);
+		sinfo->rx_bytes = le64_to_cpu(stats->rx_bytes);
+	}
+
+	if (qtnf_sta_stat_avail(tx_bytes, QLINK_STA_INFO_TX_BYTES)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES);
+		sinfo->tx_bytes = le64_to_cpu(stats->tx_bytes);
+	}
+
+	if (qtnf_sta_stat_avail(rx_bytes, QLINK_STA_INFO_RX_BYTES64)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64);
+		sinfo->rx_bytes = le64_to_cpu(stats->rx_bytes);
+	}
+
+	if (qtnf_sta_stat_avail(tx_bytes, QLINK_STA_INFO_TX_BYTES64)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64);
+		sinfo->tx_bytes = le64_to_cpu(stats->tx_bytes);
+	}
+
+	if (qtnf_sta_stat_avail(rx_packets, QLINK_STA_INFO_RX_PACKETS)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
+		sinfo->rx_packets = le32_to_cpu(stats->rx_packets);
+	}
+
+	if (qtnf_sta_stat_avail(tx_packets, QLINK_STA_INFO_TX_PACKETS)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS);
+		sinfo->tx_packets = le32_to_cpu(stats->tx_packets);
+	}
+
+	if (qtnf_sta_stat_avail(rx_beacon, QLINK_STA_INFO_BEACON_RX)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
+		sinfo->rx_beacon = le64_to_cpu(stats->rx_beacon);
+	}
+
+	if (qtnf_sta_stat_avail(rx_dropped_misc, QLINK_STA_INFO_RX_DROP_MISC)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC);
+		sinfo->rx_dropped_misc = le32_to_cpu(stats->rx_dropped_misc);
+	}
+
+	if (qtnf_sta_stat_avail(tx_failed, QLINK_STA_INFO_TX_FAILED)) {
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED);
+		sinfo->tx_failed = le32_to_cpu(stats->tx_failed);
+	}
+
+#undef qtnf_sta_stat_avail
+}
+
+int qtnf_cmd_get_sta_info(struct qtnf_vif *vif, const u8 *sta_mac,
+			  struct station_info *sinfo)
+{
+	struct sk_buff *cmd_skb, *resp_skb = NULL;
+	struct qlink_cmd_get_sta_info *cmd;
+	const struct qlink_resp_get_sta_info *resp;
+	size_t var_resp_len = 0;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_GET_STA_INFO,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_get_sta_info *)cmd_skb->data;
+	ether_addr_copy(cmd->sta_addr, sta_mac);
+
+	ret = qtnf_cmd_send_with_reply(vif->mac->bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), &var_resp_len);
+	if (ret)
+		goto out;
+
+	resp = (const struct qlink_resp_get_sta_info *)resp_skb->data;
+
+	if (!ether_addr_equal(sta_mac, resp->sta_addr)) {
+		pr_err("VIF%u.%u: wrong mac in reply: %pM != %pM\n",
+		       vif->mac->macid, vif->vifid, resp->sta_addr, sta_mac);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	qtnf_cmd_sta_info_parse(sinfo, resp->info, var_resp_len);
+
+out:
+	qtnf_bus_unlock(vif->mac->bus);
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+static int qtnf_cmd_send_add_change_intf(struct qtnf_vif *vif,
+					 enum nl80211_iftype iftype,
+					 int use4addr,
+					 u8 *mac_addr,
+					 enum qlink_cmd_type cmd_type)
+{
+	struct sk_buff *cmd_skb, *resp_skb = NULL;
+	struct qlink_cmd_manage_intf *cmd;
+	const struct qlink_resp_manage_intf *resp;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    cmd_type,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_manage_intf *)cmd_skb->data;
+	cmd->intf_info.use4addr = use4addr;
+
+	switch (iftype) {
+	case NL80211_IFTYPE_AP:
+		cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_AP);
+		break;
+	case NL80211_IFTYPE_STATION:
+		cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_STATION);
+		break;
+	default:
+		pr_err("VIF%u.%u: unsupported type %d\n", vif->mac->macid,
+		       vif->vifid, iftype);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (mac_addr)
+		ether_addr_copy(cmd->intf_info.mac_addr, mac_addr);
+	else
+		eth_zero_addr(cmd->intf_info.mac_addr);
+
+	ret = qtnf_cmd_send_with_reply(vif->mac->bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), NULL);
+	if (ret)
+		goto out;
+
+	resp = (const struct qlink_resp_manage_intf *)resp_skb->data;
+	ether_addr_copy(vif->mac_addr, resp->intf_info.mac_addr);
+
+out:
+	qtnf_bus_unlock(vif->mac->bus);
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+int qtnf_cmd_send_add_intf(struct qtnf_vif *vif, enum nl80211_iftype iftype,
+			   int use4addr, u8 *mac_addr)
+{
+	return qtnf_cmd_send_add_change_intf(vif, iftype, use4addr, mac_addr,
+			QLINK_CMD_ADD_INTF);
+}
+
+int qtnf_cmd_send_change_intf_type(struct qtnf_vif *vif,
+				   enum nl80211_iftype iftype,
+				   int use4addr,
+				   u8 *mac_addr)
+{
+	int ret;
+
+	ret = qtnf_cmd_send_add_change_intf(vif, iftype, use4addr, mac_addr,
+					    QLINK_CMD_CHANGE_INTF);
+
+	/* Regulatory settings may be different for different interface types */
+	if (ret == 0 && vif->wdev.iftype != iftype) {
+		enum nl80211_band band;
+		struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+
+		for (band = 0; band < NUM_NL80211_BANDS; ++band) {
+			if (!wiphy->bands[band])
+				continue;
+
+			qtnf_cmd_band_info_get(vif->mac, wiphy->bands[band]);
+		}
+	}
+
+	return ret;
+}
+
+int qtnf_cmd_send_del_intf(struct qtnf_vif *vif)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_manage_intf *cmd;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_DEL_INTF,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_manage_intf *)cmd_skb->data;
+
+	switch (vif->wdev.iftype) {
+	case NL80211_IFTYPE_AP:
+		cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_AP);
+		break;
+	case NL80211_IFTYPE_STATION:
+		cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_STATION);
+		break;
+	default:
+		pr_warn("VIF%u.%u: unsupported iftype %d\n", vif->mac->macid,
+			vif->vifid, vif->wdev.iftype);
+		dev_kfree_skb(cmd_skb);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	eth_zero_addr(cmd->intf_info.mac_addr);
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+	if (ret)
+		goto out;
+
+out:
+	qtnf_bus_unlock(vif->mac->bus);
+	return ret;
+}
+
+static int
+qtnf_cmd_resp_proc_hw_info(struct qtnf_bus *bus,
+			   const struct qlink_resp_get_hw_info *resp,
+			   size_t info_len)
+{
+	struct qtnf_hw_info *hwinfo = &bus->hw_info;
+	const struct qlink_tlv_hdr *tlv;
+	const char *bld_name = NULL;
+	const char *bld_rev = NULL;
+	const char *bld_type = NULL;
+	const char *bld_label = NULL;
+	u32 bld_tmstamp = 0;
+	u32 plat_id = 0;
+	const char *hw_id = NULL;
+	const char *calibration_ver = NULL;
+	const char *uboot_ver = NULL;
+	u32 hw_ver = 0;
+	u16 tlv_type;
+	u16 tlv_len;
+
+	hwinfo->num_mac = resp->num_mac;
+	hwinfo->mac_bitmap = resp->mac_bitmap;
+	hwinfo->fw_ver = le32_to_cpu(resp->fw_ver);
+	hwinfo->total_tx_chain = resp->total_tx_chain;
+	hwinfo->total_rx_chain = resp->total_rx_chain;
+
+	bld_tmstamp = le32_to_cpu(resp->bld_tmstamp);
+	plat_id = le32_to_cpu(resp->plat_id);
+	hw_ver = le32_to_cpu(resp->hw_ver);
+
+	qlink_for_each_tlv(tlv, resp->info, info_len) {
+		tlv_type = le16_to_cpu(tlv->type);
+		tlv_len = le16_to_cpu(tlv->len);
+
+		switch (tlv_type) {
+		case QTN_TLV_ID_BUILD_NAME:
+			bld_name = (const void *)tlv->val;
+			break;
+		case QTN_TLV_ID_BUILD_REV:
+			bld_rev = (const void *)tlv->val;
+			break;
+		case QTN_TLV_ID_BUILD_TYPE:
+			bld_type = (const void *)tlv->val;
+			break;
+		case QTN_TLV_ID_BUILD_LABEL:
+			bld_label = (const void *)tlv->val;
+			break;
+		case QTN_TLV_ID_HW_ID:
+			hw_id = (const void *)tlv->val;
+			break;
+		case QTN_TLV_ID_CALIBRATION_VER:
+			calibration_ver = (const void *)tlv->val;
+			break;
+		case QTN_TLV_ID_UBOOT_VER:
+			uboot_ver = (const void *)tlv->val;
+			break;
+		case QTN_TLV_ID_BITMAP:
+			memcpy(hwinfo->hw_capab, tlv->val,
+			       min(sizeof(hwinfo->hw_capab), (size_t)tlv_len));
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (!qlink_tlv_parsing_ok(tlv, resp->info, info_len)) {
+		pr_err("Malformed TLV buffer\n");
+		return -EINVAL;
+	}
+
+	pr_info("\nBuild name:            %s\n"
+		"Build revision:        %s\n"
+		"Build type:            %s\n"
+		"Build label:           %s\n"
+		"Build timestamp:       %lu\n"
+		"Platform ID:           %lu\n"
+		"Hardware ID:           %s\n"
+		"Calibration version:   %s\n"
+		"U-Boot version:        %s\n"
+		"Hardware version:      0x%08x\n"
+		"Qlink ver:             %u.%u\n"
+		"MACs map:              %#x\n"
+		"Chains Rx-Tx:          %ux%u\n"
+		"FW version:            0x%x\n",
+		bld_name, bld_rev, bld_type, bld_label,
+		(unsigned long)bld_tmstamp,
+		(unsigned long)plat_id,
+		hw_id, calibration_ver, uboot_ver, hw_ver,
+		QLINK_VER_MAJOR(bus->hw_info.ql_proto_ver),
+		QLINK_VER_MINOR(bus->hw_info.ql_proto_ver),
+		hwinfo->mac_bitmap,
+		hwinfo->total_rx_chain, hwinfo->total_tx_chain,
+		hwinfo->fw_ver);
+
+	strscpy(hwinfo->fw_version, bld_label, sizeof(hwinfo->fw_version));
+	hwinfo->hw_version = hw_ver;
+
+	return 0;
+}
+
+static void
+qtnf_parse_wowlan_info(struct qtnf_wmac *mac,
+		       const struct qlink_wowlan_capab_data *wowlan)
+{
+	struct qtnf_mac_info *mac_info = &mac->macinfo;
+	const struct qlink_wowlan_support *data1;
+	struct wiphy_wowlan_support *supp;
+
+	supp = kzalloc(sizeof(*supp), GFP_KERNEL);
+	if (!supp)
+		return;
+
+	switch (le16_to_cpu(wowlan->version)) {
+	case 0x1:
+		data1 = (struct qlink_wowlan_support *)wowlan->data;
+
+		supp->flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT;
+		supp->n_patterns = le32_to_cpu(data1->n_patterns);
+		supp->pattern_max_len = le32_to_cpu(data1->pattern_max_len);
+		supp->pattern_min_len = le32_to_cpu(data1->pattern_min_len);
+
+		mac_info->wowlan = supp;
+		break;
+	default:
+		pr_warn("MAC%u: unsupported WoWLAN version 0x%x\n",
+			mac->macid, le16_to_cpu(wowlan->version));
+		kfree(supp);
+		break;
+	}
+}
+
+static int
+qtnf_parse_variable_mac_info(struct qtnf_wmac *mac,
+			     const struct qlink_resp_get_mac_info *resp,
+			     size_t tlv_buf_size)
+{
+	struct ieee80211_iface_combination *comb = mac->macinfo.if_comb;
+	size_t n_comb = 0;
+	struct ieee80211_iface_limit *limits;
+	const struct qlink_iface_limit_record *rec;
+	const struct qlink_iface_limit *lim;
+	const struct qlink_wowlan_capab_data *wowlan;
+	u16 rec_len;
+	u16 tlv_type;
+	u16 tlv_value_len;
+	const struct qlink_tlv_hdr *tlv;
+	u8 *ext_capa = NULL;
+	u8 *ext_capa_mask = NULL;
+	u8 ext_capa_len = 0;
+	u8 ext_capa_mask_len = 0;
+	int i = 0;
+	struct ieee80211_reg_rule *rule;
+	unsigned int rule_idx = 0;
+	const struct qlink_tlv_reg_rule *tlv_rule;
+
+	if (WARN_ON(resp->n_reg_rules > NL80211_MAX_SUPP_REG_RULES))
+		return -E2BIG;
+
+	mac->rd = kzalloc(struct_size(mac->rd, reg_rules, resp->n_reg_rules),
+			  GFP_KERNEL);
+	if (!mac->rd)
+		return -ENOMEM;
+
+	mac->rd->n_reg_rules = resp->n_reg_rules;
+	mac->rd->alpha2[0] = resp->alpha2[0];
+	mac->rd->alpha2[1] = resp->alpha2[1];
+
+	switch (resp->dfs_region) {
+	case QLINK_DFS_FCC:
+		mac->rd->dfs_region = NL80211_DFS_FCC;
+		break;
+	case QLINK_DFS_ETSI:
+		mac->rd->dfs_region = NL80211_DFS_ETSI;
+		break;
+	case QLINK_DFS_JP:
+		mac->rd->dfs_region = NL80211_DFS_JP;
+		break;
+	case QLINK_DFS_UNSET:
+	default:
+		mac->rd->dfs_region = NL80211_DFS_UNSET;
+		break;
+	}
+
+	qlink_for_each_tlv(tlv, resp->var_info, tlv_buf_size) {
+		tlv_type = le16_to_cpu(tlv->type);
+		tlv_value_len = le16_to_cpu(tlv->len);
+
+		switch (tlv_type) {
+		case QTN_TLV_ID_IFACE_LIMIT:
+			if (unlikely(!comb)) {
+				pr_warn("MAC%u: no combinations advertised\n",
+					mac->macid);
+				return -EINVAL;
+			}
+
+			if (n_comb >= mac->macinfo.n_if_comb) {
+				pr_warn("MAC%u: combinations count exceeded\n",
+					mac->macid);
+				n_comb++;
+				break;
+			}
+
+			rec = (void *)tlv->val;
+			rec_len = sizeof(*rec) + rec->n_limits * sizeof(*lim);
+
+			if (unlikely(tlv_value_len != rec_len)) {
+				pr_warn("MAC%u: record %zu size mismatch\n",
+					mac->macid, n_comb);
+				return -EINVAL;
+			}
+
+			limits = kcalloc(rec->n_limits, sizeof(*limits),
+					 GFP_KERNEL);
+			if (!limits)
+				return -ENOMEM;
+
+			comb[n_comb].num_different_channels =
+				rec->num_different_channels;
+			comb[n_comb].max_interfaces =
+				le16_to_cpu(rec->max_interfaces);
+			comb[n_comb].n_limits = rec->n_limits;
+			comb[n_comb].limits = limits;
+
+			for (i = 0; i < rec->n_limits; i++) {
+				lim = &rec->limits[i];
+				limits[i].max = le16_to_cpu(lim->max_num);
+				limits[i].types =
+					qlink_iface_type_to_nl_mask(le16_to_cpu(lim->type));
+				pr_debug("MAC%u: comb[%zu]: MAX:%u TYPES:%.4X\n",
+					 mac->macid, n_comb,
+					 limits[i].max, limits[i].types);
+			}
+
+			n_comb++;
+			break;
+		case WLAN_EID_EXT_CAPABILITY:
+			if (unlikely(tlv_value_len > U8_MAX))
+				return -EINVAL;
+			ext_capa = (u8 *)tlv->val;
+			ext_capa_len = tlv_value_len;
+			break;
+		case QTN_TLV_ID_EXT_CAPABILITY_MASK:
+			if (unlikely(tlv_value_len > U8_MAX))
+				return -EINVAL;
+			ext_capa_mask = (u8 *)tlv->val;
+			ext_capa_mask_len = tlv_value_len;
+			break;
+		case QTN_TLV_ID_WOWLAN_CAPAB:
+			if (tlv_value_len < sizeof(*wowlan))
+				return -EINVAL;
+
+			wowlan = (void *)tlv->val;
+			if (!le16_to_cpu(wowlan->len)) {
+				pr_warn("MAC%u: skip empty WoWLAN data\n",
+					mac->macid);
+				break;
+			}
+
+			rec_len = sizeof(*wowlan) + le16_to_cpu(wowlan->len);
+			if (unlikely(tlv_value_len != rec_len)) {
+				pr_warn("MAC%u: WoWLAN data size mismatch\n",
+					mac->macid);
+				return -EINVAL;
+			}
+
+			kfree(mac->macinfo.wowlan);
+			mac->macinfo.wowlan = NULL;
+			qtnf_parse_wowlan_info(mac, wowlan);
+			break;
+		case QTN_TLV_ID_REG_RULE:
+			if (rule_idx >= resp->n_reg_rules) {
+				pr_warn("unexpected number of rules: %u\n",
+					resp->n_reg_rules);
+				return -EINVAL;
+			}
+
+			if (tlv_value_len != sizeof(*tlv_rule) - sizeof(*tlv)) {
+				pr_warn("malformed TLV 0x%.2X; LEN: %u\n",
+					tlv_type, tlv_value_len);
+				return -EINVAL;
+			}
+
+			tlv_rule = (const struct qlink_tlv_reg_rule *)tlv;
+			rule = &mac->rd->reg_rules[rule_idx++];
+			qlink_utils_regrule_q2nl(rule, tlv_rule);
+			break;
+		default:
+			pr_warn("MAC%u: unknown TLV type %u\n",
+				mac->macid, tlv_type);
+			break;
+		}
+	}
+
+	if (!qlink_tlv_parsing_ok(tlv, resp->var_info, tlv_buf_size)) {
+		pr_err("Malformed TLV buffer\n");
+		return -EINVAL;
+	}
+
+	if (mac->macinfo.n_if_comb != n_comb) {
+		pr_err("MAC%u: combination mismatch: reported=%zu parsed=%zu\n",
+		       mac->macid, mac->macinfo.n_if_comb, n_comb);
+		return -EINVAL;
+	}
+
+	if (ext_capa_len != ext_capa_mask_len) {
+		pr_err("MAC%u: ext_capa/_mask lengths mismatch: %u != %u\n",
+		       mac->macid, ext_capa_len, ext_capa_mask_len);
+		return -EINVAL;
+	}
+
+	if (rule_idx != resp->n_reg_rules) {
+		pr_warn("unexpected number of rules: expected %u got %u\n",
+			resp->n_reg_rules, rule_idx);
+		return -EINVAL;
+	}
+
+	if (ext_capa_len > 0) {
+		ext_capa = kmemdup(ext_capa, ext_capa_len, GFP_KERNEL);
+		if (!ext_capa)
+			return -ENOMEM;
+
+		ext_capa_mask =
+			kmemdup(ext_capa_mask, ext_capa_mask_len, GFP_KERNEL);
+		if (!ext_capa_mask) {
+			kfree(ext_capa);
+			return -ENOMEM;
+		}
+	} else {
+		ext_capa = NULL;
+		ext_capa_mask = NULL;
+	}
+
+	qtnf_mac_ext_caps_free(mac);
+	mac->macinfo.extended_capabilities = ext_capa;
+	mac->macinfo.extended_capabilities_mask = ext_capa_mask;
+	mac->macinfo.extended_capabilities_len = ext_capa_len;
+
+	return 0;
+}
+
+static int
+qtnf_cmd_resp_proc_mac_info(struct qtnf_wmac *mac,
+			    const struct qlink_resp_get_mac_info *resp_info)
+{
+	struct qtnf_mac_info *mac_info;
+	struct qtnf_vif *vif;
+
+	qtnf_mac_iface_comb_free(mac);
+
+	mac_info = &mac->macinfo;
+
+	mac_info->bands_cap = resp_info->bands_cap;
+	ether_addr_copy(mac->macaddr, resp_info->dev_mac);
+
+	vif = qtnf_mac_get_base_vif(mac);
+	if (vif)
+		ether_addr_copy(vif->mac_addr, mac->macaddr);
+	else
+		pr_err("could not get valid base vif\n");
+
+	mac_info->num_tx_chain = resp_info->num_tx_chain;
+	mac_info->num_rx_chain = resp_info->num_rx_chain;
+
+	mac_info->max_ap_assoc_sta = le16_to_cpu(resp_info->max_ap_assoc_sta);
+	mac_info->radar_detect_widths =
+			qlink_chan_width_mask_to_nl(le16_to_cpu(
+					resp_info->radar_detect_widths));
+	mac_info->max_acl_mac_addrs = le16_to_cpu(resp_info->max_acl_mac_addrs);
+	mac_info->frag_thr = le32_to_cpu(resp_info->frag_threshold);
+	mac_info->rts_thr = le32_to_cpu(resp_info->rts_threshold);
+	mac_info->sretry_limit = resp_info->retry_short;
+	mac_info->lretry_limit = resp_info->retry_long;
+	mac_info->coverage_class = resp_info->coverage_class;
+	mac_info->max_scan_ssids = resp_info->max_scan_ssids;
+
+	memcpy(&mac_info->ht_cap_mod_mask, &resp_info->ht_cap_mod_mask,
+	       sizeof(mac_info->ht_cap_mod_mask));
+	memcpy(&mac_info->vht_cap_mod_mask, &resp_info->vht_cap_mod_mask,
+	       sizeof(mac_info->vht_cap_mod_mask));
+
+	mac_info->n_if_comb = resp_info->n_iface_combinations;
+	mac_info->if_comb = kcalloc(mac->macinfo.n_if_comb,
+				    sizeof(*mac->macinfo.if_comb),
+				    GFP_KERNEL);
+
+	if (!mac->macinfo.if_comb)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void qtnf_cmd_resp_band_fill_htcap(const u8 *info,
+					  struct ieee80211_sta_ht_cap *bcap)
+{
+	const struct ieee80211_ht_cap *ht_cap =
+		(const struct ieee80211_ht_cap *)info;
+
+	bcap->ht_supported = true;
+	bcap->cap = le16_to_cpu(ht_cap->cap_info);
+	bcap->ampdu_factor =
+		ht_cap->ampdu_params_info & IEEE80211_HT_AMPDU_PARM_FACTOR;
+	bcap->ampdu_density =
+		(ht_cap->ampdu_params_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >>
+		IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT;
+	memcpy(&bcap->mcs, &ht_cap->mcs, sizeof(bcap->mcs));
+}
+
+static void qtnf_cmd_resp_band_fill_vhtcap(const u8 *info,
+					   struct ieee80211_sta_vht_cap *bcap)
+{
+	const struct ieee80211_vht_cap *vht_cap =
+		(const struct ieee80211_vht_cap *)info;
+
+	bcap->vht_supported = true;
+	bcap->cap = le32_to_cpu(vht_cap->vht_cap_info);
+	memcpy(&bcap->vht_mcs, &vht_cap->supp_mcs, sizeof(bcap->vht_mcs));
+}
+
+static void qtnf_cmd_conv_iftype(struct ieee80211_sband_iftype_data
+				  *iftype_data,
+				  const struct qlink_sband_iftype_data
+				  *qlink_data)
+{
+	iftype_data->types_mask = le16_to_cpu(qlink_data->types_mask);
+
+	iftype_data->he_cap.has_he = true;
+	memcpy(&iftype_data->he_cap.he_cap_elem, &qlink_data->he_cap_elem,
+	       sizeof(qlink_data->he_cap_elem));
+	memcpy(iftype_data->he_cap.ppe_thres, qlink_data->ppe_thres,
+	       ARRAY_SIZE(qlink_data->ppe_thres));
+
+	iftype_data->he_cap.he_mcs_nss_supp.rx_mcs_80 =
+		qlink_data->he_mcs_nss_supp.rx_mcs_80;
+	iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_80 =
+		qlink_data->he_mcs_nss_supp.tx_mcs_80;
+	iftype_data->he_cap.he_mcs_nss_supp.rx_mcs_160 =
+		qlink_data->he_mcs_nss_supp.rx_mcs_160;
+	iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_160 =
+		qlink_data->he_mcs_nss_supp.tx_mcs_160;
+	iftype_data->he_cap.he_mcs_nss_supp.rx_mcs_80p80 =
+		qlink_data->he_mcs_nss_supp.rx_mcs_80p80;
+	iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_80p80 =
+		qlink_data->he_mcs_nss_supp.tx_mcs_80p80;
+}
+
+static int qtnf_cmd_band_fill_iftype(const u8 *data,
+				     struct ieee80211_supported_band *band)
+{
+	unsigned int i;
+	struct ieee80211_sband_iftype_data *iftype_data;
+	const struct qlink_tlv_iftype_data *tlv =
+		(const struct qlink_tlv_iftype_data *)data;
+	size_t payload_len;
+
+	payload_len = struct_size(tlv, iftype_data, tlv->n_iftype_data);
+	payload_len = size_sub(payload_len, sizeof(struct qlink_tlv_hdr));
+
+	if (tlv->hdr.len != cpu_to_le16(payload_len)) {
+		pr_err("bad IFTYPE_DATA TLV len %u\n", tlv->hdr.len);
+		return -EINVAL;
+	}
+
+	kfree(band->iftype_data);
+	band->iftype_data = NULL;
+	band->n_iftype_data = tlv->n_iftype_data;
+	if (band->n_iftype_data == 0)
+		return 0;
+
+	iftype_data = kcalloc(band->n_iftype_data, sizeof(*iftype_data),
+			      GFP_KERNEL);
+	if (!iftype_data) {
+		band->n_iftype_data = 0;
+		return -ENOMEM;
+	}
+	band->iftype_data = iftype_data;
+
+	for (i = 0; i < band->n_iftype_data; i++)
+		qtnf_cmd_conv_iftype(iftype_data++, &tlv->iftype_data[i]);
+
+	return 0;
+}
+
+static int
+qtnf_cmd_resp_fill_band_info(struct ieee80211_supported_band *band,
+			     struct qlink_resp_band_info_get *resp,
+			     size_t payload_len)
+{
+	u16 tlv_type;
+	size_t tlv_dlen;
+	const struct qlink_tlv_hdr *tlv;
+	const struct qlink_channel *qchan;
+	struct ieee80211_channel *chan;
+	unsigned int chidx = 0;
+	u32 qflags;
+	int ret = -EINVAL;
+
+	memset(&band->ht_cap, 0, sizeof(band->ht_cap));
+	memset(&band->vht_cap, 0, sizeof(band->vht_cap));
+
+	if (band->channels) {
+		if (band->n_channels == resp->num_chans) {
+			memset(band->channels, 0,
+			       sizeof(*band->channels) * band->n_channels);
+		} else {
+			kfree(band->channels);
+			band->n_channels = 0;
+			band->channels = NULL;
+		}
+	}
+
+	band->n_channels = resp->num_chans;
+	if (band->n_channels == 0)
+		return 0;
+
+	if (!band->channels)
+		band->channels = kcalloc(band->n_channels, sizeof(*chan),
+					 GFP_KERNEL);
+	if (!band->channels) {
+		band->n_channels = 0;
+		return -ENOMEM;
+	}
+
+	qlink_for_each_tlv(tlv, resp->info, payload_len) {
+		tlv_type = le16_to_cpu(tlv->type);
+		tlv_dlen = le16_to_cpu(tlv->len);
+
+		switch (tlv_type) {
+		case QTN_TLV_ID_CHANNEL:
+			if (unlikely(tlv_dlen != sizeof(*qchan))) {
+				pr_err("invalid channel TLV len %zu\n",
+				       tlv_dlen);
+				goto error_ret;
+			}
+
+			if (chidx == band->n_channels) {
+				pr_err("too many channel TLVs\n");
+				goto error_ret;
+			}
+
+			qchan = (const struct qlink_channel *)tlv->val;
+			chan = &band->channels[chidx++];
+			qflags = le32_to_cpu(qchan->flags);
+
+			chan->hw_value = le16_to_cpu(qchan->hw_value);
+			chan->band = band->band;
+			chan->center_freq = le16_to_cpu(qchan->center_freq);
+			chan->max_antenna_gain = (int)qchan->max_antenna_gain;
+			chan->max_power = (int)qchan->max_power;
+			chan->max_reg_power = (int)qchan->max_reg_power;
+			chan->beacon_found = qchan->beacon_found;
+			chan->dfs_cac_ms = le32_to_cpu(qchan->dfs_cac_ms);
+			chan->flags = 0;
+
+			if (qflags & QLINK_CHAN_DISABLED)
+				chan->flags |= IEEE80211_CHAN_DISABLED;
+
+			if (qflags & QLINK_CHAN_NO_IR)
+				chan->flags |= IEEE80211_CHAN_NO_IR;
+
+			if (qflags & QLINK_CHAN_NO_HT40PLUS)
+				chan->flags |= IEEE80211_CHAN_NO_HT40PLUS;
+
+			if (qflags & QLINK_CHAN_NO_HT40MINUS)
+				chan->flags |= IEEE80211_CHAN_NO_HT40MINUS;
+
+			if (qflags & QLINK_CHAN_NO_OFDM)
+				chan->flags |= IEEE80211_CHAN_NO_OFDM;
+
+			if (qflags & QLINK_CHAN_NO_80MHZ)
+				chan->flags |= IEEE80211_CHAN_NO_80MHZ;
+
+			if (qflags & QLINK_CHAN_NO_160MHZ)
+				chan->flags |= IEEE80211_CHAN_NO_160MHZ;
+
+			if (qflags & QLINK_CHAN_INDOOR_ONLY)
+				chan->flags |= IEEE80211_CHAN_INDOOR_ONLY;
+
+			if (qflags & QLINK_CHAN_IR_CONCURRENT)
+				chan->flags |= IEEE80211_CHAN_IR_CONCURRENT;
+
+			if (qflags & QLINK_CHAN_NO_20MHZ)
+				chan->flags |= IEEE80211_CHAN_NO_20MHZ;
+
+			if (qflags & QLINK_CHAN_NO_10MHZ)
+				chan->flags |= IEEE80211_CHAN_NO_10MHZ;
+
+			if (qflags & QLINK_CHAN_RADAR) {
+				chan->flags |= IEEE80211_CHAN_RADAR;
+				chan->dfs_state_entered = jiffies;
+
+				if (qchan->dfs_state == QLINK_DFS_USABLE)
+					chan->dfs_state = NL80211_DFS_USABLE;
+				else if (qchan->dfs_state ==
+					QLINK_DFS_AVAILABLE)
+					chan->dfs_state = NL80211_DFS_AVAILABLE;
+				else
+					chan->dfs_state =
+						NL80211_DFS_UNAVAILABLE;
+			}
+
+			pr_debug("chan=%d flags=%#x max_pow=%d max_reg_pow=%d\n",
+				 chan->hw_value, chan->flags, chan->max_power,
+				 chan->max_reg_power);
+			break;
+		case WLAN_EID_HT_CAPABILITY:
+			if (unlikely(tlv_dlen !=
+				     sizeof(struct ieee80211_ht_cap))) {
+				pr_err("bad HTCAP TLV len %zu\n", tlv_dlen);
+				goto error_ret;
+			}
+
+			qtnf_cmd_resp_band_fill_htcap(tlv->val, &band->ht_cap);
+			break;
+		case WLAN_EID_VHT_CAPABILITY:
+			if (unlikely(tlv_dlen !=
+				     sizeof(struct ieee80211_vht_cap))) {
+				pr_err("bad VHTCAP TLV len %zu\n", tlv_dlen);
+				goto error_ret;
+			}
+
+			qtnf_cmd_resp_band_fill_vhtcap(tlv->val,
+						       &band->vht_cap);
+			break;
+		case QTN_TLV_ID_IFTYPE_DATA:
+			ret = qtnf_cmd_band_fill_iftype((const uint8_t *)tlv,
+							band);
+			if (ret)
+				goto error_ret;
+			break;
+		default:
+			pr_warn("unknown TLV type: %#x\n", tlv_type);
+			break;
+		}
+	}
+
+	if (!qlink_tlv_parsing_ok(tlv, resp->info, payload_len)) {
+		pr_err("Malformed TLV buffer\n");
+		goto error_ret;
+	}
+
+	if (band->n_channels != chidx) {
+		pr_err("channel count mismatch: reported=%d, parsed=%d\n",
+		       band->n_channels, chidx);
+		goto error_ret;
+	}
+
+	return 0;
+
+error_ret:
+	kfree(band->channels);
+	band->channels = NULL;
+	band->n_channels = 0;
+
+	return ret;
+}
+
+int qtnf_cmd_get_mac_info(struct qtnf_wmac *mac)
+{
+	struct sk_buff *cmd_skb, *resp_skb = NULL;
+	const struct qlink_resp_get_mac_info *resp;
+	size_t var_data_len = 0;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
+					    QLINK_CMD_MAC_INFO,
+					    sizeof(struct qlink_cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(mac->bus);
+	ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), &var_data_len);
+	if (ret)
+		goto out;
+
+	resp = (const struct qlink_resp_get_mac_info *)resp_skb->data;
+	ret = qtnf_cmd_resp_proc_mac_info(mac, resp);
+	if (ret)
+		goto out;
+
+	ret = qtnf_parse_variable_mac_info(mac, resp, var_data_len);
+
+out:
+	qtnf_bus_unlock(mac->bus);
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+int qtnf_cmd_get_hw_info(struct qtnf_bus *bus)
+{
+	struct sk_buff *cmd_skb, *resp_skb = NULL;
+	const struct qlink_resp_get_hw_info *resp;
+	size_t info_len = 0;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD,
+					    QLINK_CMD_GET_HW_INFO,
+					    sizeof(struct qlink_cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(bus);
+	ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), &info_len);
+	if (ret)
+		goto out;
+
+	resp = (const struct qlink_resp_get_hw_info *)resp_skb->data;
+	ret = qtnf_cmd_resp_proc_hw_info(bus, resp, info_len);
+
+out:
+	qtnf_bus_unlock(bus);
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+int qtnf_cmd_band_info_get(struct qtnf_wmac *mac,
+			   struct ieee80211_supported_band *band)
+{
+	struct sk_buff *cmd_skb, *resp_skb = NULL;
+	struct qlink_cmd_band_info_get *cmd;
+	struct qlink_resp_band_info_get *resp;
+	size_t info_len = 0;
+	int ret = 0;
+	u8 qband = qlink_utils_band_cfg2q(band->band);
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0,
+					    QLINK_CMD_BAND_INFO_GET,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_band_info_get *)cmd_skb->data;
+	cmd->band = qband;
+
+	qtnf_bus_lock(mac->bus);
+	ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), &info_len);
+	if (ret)
+		goto out;
+
+	resp = (struct qlink_resp_band_info_get *)resp_skb->data;
+	if (resp->band != qband) {
+		pr_err("MAC%u: reply band %u != cmd band %u\n", mac->macid,
+		       resp->band, qband);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = qtnf_cmd_resp_fill_band_info(band, resp, info_len);
+
+out:
+	qtnf_bus_unlock(mac->bus);
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+int qtnf_cmd_send_update_phy_params(struct qtnf_wmac *mac, u32 changed)
+{
+	struct wiphy *wiphy = priv_to_wiphy(mac);
+	struct sk_buff *cmd_skb;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0,
+					    QLINK_CMD_PHY_PARAMS_SET,
+					    sizeof(struct qlink_cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(mac->bus);
+
+	if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
+		qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_FRAG_THRESH,
+					 wiphy->frag_threshold);
+	if (changed & WIPHY_PARAM_RTS_THRESHOLD)
+		qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_RTS_THRESH,
+					 wiphy->rts_threshold);
+	if (changed & WIPHY_PARAM_COVERAGE_CLASS)
+		qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_COVERAGE_CLASS,
+					 wiphy->coverage_class);
+
+	if (changed & WIPHY_PARAM_RETRY_LONG)
+		qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_LRETRY_LIMIT,
+					 wiphy->retry_long);
+
+	if (changed & WIPHY_PARAM_RETRY_SHORT)
+		qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_SRETRY_LIMIT,
+					 wiphy->retry_short);
+
+	ret = qtnf_cmd_send(mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_init_fw(struct qtnf_bus *bus)
+{
+	struct sk_buff *resp_skb = NULL;
+	struct qlink_resp_init_fw *resp;
+	struct qlink_cmd_init_fw *cmd;
+	struct sk_buff *cmd_skb;
+	size_t info_len = 0;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD,
+					    QLINK_CMD_FW_INIT,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_init_fw *)cmd_skb->data;
+	cmd->qlink_proto_ver = cpu_to_le32(QLINK_PROTO_VER);
+
+	qtnf_bus_lock(bus);
+	ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), &info_len);
+	qtnf_bus_unlock(bus);
+
+	if (ret)
+		goto out;
+
+	resp = (struct qlink_resp_init_fw *)resp_skb->data;
+	bus->hw_info.ql_proto_ver = le32_to_cpu(resp->qlink_proto_ver);
+
+out:
+	consume_skb(resp_skb);
+	return ret;
+}
+
+void qtnf_cmd_send_deinit_fw(struct qtnf_bus *bus)
+{
+	struct sk_buff *cmd_skb;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD,
+					    QLINK_CMD_FW_DEINIT,
+					    sizeof(struct qlink_cmd));
+	if (!cmd_skb)
+		return;
+
+	qtnf_bus_lock(bus);
+	qtnf_cmd_send(bus, cmd_skb);
+	qtnf_bus_unlock(bus);
+}
+
+int qtnf_cmd_send_add_key(struct qtnf_vif *vif, u8 key_index, bool pairwise,
+			  const u8 *mac_addr, struct key_params *params)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_add_key *cmd;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_ADD_KEY,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_add_key *)cmd_skb->data;
+
+	if (mac_addr)
+		ether_addr_copy(cmd->addr, mac_addr);
+	else
+		eth_broadcast_addr(cmd->addr);
+
+	cmd->cipher = cpu_to_le32(params->cipher);
+	cmd->key_index = key_index;
+	cmd->pairwise = pairwise;
+
+	if (params->key && params->key_len > 0)
+		qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_KEY,
+					 params->key,
+					 params->key_len);
+
+	if (params->seq && params->seq_len > 0)
+		qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_SEQ,
+					 params->seq,
+					 params->seq_len);
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_del_key(struct qtnf_vif *vif, u8 key_index, bool pairwise,
+			  const u8 *mac_addr)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_del_key *cmd;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_DEL_KEY,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_del_key *)cmd_skb->data;
+
+	if (mac_addr)
+		ether_addr_copy(cmd->addr, mac_addr);
+	else
+		eth_broadcast_addr(cmd->addr);
+
+	cmd->key_index = key_index;
+	cmd->pairwise = pairwise;
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_set_default_key(struct qtnf_vif *vif, u8 key_index,
+				  bool unicast, bool multicast)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_set_def_key *cmd;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_SET_DEFAULT_KEY,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_set_def_key *)cmd_skb->data;
+	cmd->key_index = key_index;
+	cmd->unicast = unicast;
+	cmd->multicast = multicast;
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_set_default_mgmt_key(struct qtnf_vif *vif, u8 key_index)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_set_def_mgmt_key *cmd;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_SET_DEFAULT_MGMT_KEY,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_set_def_mgmt_key *)cmd_skb->data;
+	cmd->key_index = key_index;
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+static u32 qtnf_encode_sta_flags(u32 flags)
+{
+	u32 code = 0;
+
+	if (flags & BIT(NL80211_STA_FLAG_AUTHORIZED))
+		code |= QLINK_STA_FLAG_AUTHORIZED;
+	if (flags & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
+		code |= QLINK_STA_FLAG_SHORT_PREAMBLE;
+	if (flags & BIT(NL80211_STA_FLAG_WME))
+		code |= QLINK_STA_FLAG_WME;
+	if (flags & BIT(NL80211_STA_FLAG_MFP))
+		code |= QLINK_STA_FLAG_MFP;
+	if (flags & BIT(NL80211_STA_FLAG_AUTHENTICATED))
+		code |= QLINK_STA_FLAG_AUTHENTICATED;
+	if (flags & BIT(NL80211_STA_FLAG_TDLS_PEER))
+		code |= QLINK_STA_FLAG_TDLS_PEER;
+	if (flags & BIT(NL80211_STA_FLAG_ASSOCIATED))
+		code |= QLINK_STA_FLAG_ASSOCIATED;
+	return code;
+}
+
+int qtnf_cmd_send_change_sta(struct qtnf_vif *vif, const u8 *mac,
+			     struct station_parameters *params)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_change_sta *cmd;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_CHANGE_STA,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_change_sta *)cmd_skb->data;
+	ether_addr_copy(cmd->sta_addr, mac);
+	cmd->flag_update.mask =
+		cpu_to_le32(qtnf_encode_sta_flags(params->sta_flags_mask));
+	cmd->flag_update.value =
+		cpu_to_le32(qtnf_encode_sta_flags(params->sta_flags_set));
+
+	switch (vif->wdev.iftype) {
+	case NL80211_IFTYPE_AP:
+		cmd->if_type = cpu_to_le16(QLINK_IFTYPE_AP);
+		break;
+	case NL80211_IFTYPE_STATION:
+		cmd->if_type = cpu_to_le16(QLINK_IFTYPE_STATION);
+		break;
+	default:
+		pr_err("unsupported iftype %d\n", vif->wdev.iftype);
+		dev_kfree_skb(cmd_skb);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+out:
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_del_sta(struct qtnf_vif *vif,
+			  struct station_del_parameters *params)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_del_sta *cmd;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_DEL_STA,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_del_sta *)cmd_skb->data;
+
+	if (params->mac)
+		ether_addr_copy(cmd->sta_addr, params->mac);
+	else
+		eth_broadcast_addr(cmd->sta_addr);	/* flush all stations */
+
+	cmd->subtype = params->subtype;
+	cmd->reason_code = cpu_to_le16(params->reason_code);
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+static void qtnf_cmd_channel_tlv_add(struct sk_buff *cmd_skb,
+				     const struct ieee80211_channel *sc)
+{
+	struct qlink_tlv_channel *tlv;
+	struct qlink_channel *qch;
+
+	tlv = skb_put_zero(cmd_skb, sizeof(*tlv));
+	qch = &tlv->chan;
+	tlv->hdr.type = cpu_to_le16(QTN_TLV_ID_CHANNEL);
+	tlv->hdr.len = cpu_to_le16(sizeof(*qch));
+
+	qch->center_freq = cpu_to_le16(sc->center_freq);
+	qch->hw_value = cpu_to_le16(sc->hw_value);
+	qch->band = qlink_utils_band_cfg2q(sc->band);
+	qch->max_power = sc->max_power;
+	qch->max_reg_power = sc->max_reg_power;
+	qch->max_antenna_gain = sc->max_antenna_gain;
+	qch->beacon_found = sc->beacon_found;
+	qch->dfs_state = qlink_utils_dfs_state_cfg2q(sc->dfs_state);
+	qch->flags = cpu_to_le32(qlink_utils_chflags_cfg2q(sc->flags));
+}
+
+static void qtnf_cmd_randmac_tlv_add(struct sk_buff *cmd_skb,
+				     const u8 *mac_addr,
+				     const u8 *mac_addr_mask)
+{
+	struct qlink_random_mac_addr *randmac;
+	struct qlink_tlv_hdr *hdr =
+		skb_put(cmd_skb, sizeof(*hdr) + sizeof(*randmac));
+
+	hdr->type = cpu_to_le16(QTN_TLV_ID_RANDOM_MAC_ADDR);
+	hdr->len = cpu_to_le16(sizeof(*randmac));
+	randmac = (struct qlink_random_mac_addr *)hdr->val;
+
+	memcpy(randmac->mac_addr, mac_addr, ETH_ALEN);
+	memcpy(randmac->mac_addr_mask, mac_addr_mask, ETH_ALEN);
+}
+
+int qtnf_cmd_send_scan(struct qtnf_wmac *mac)
+{
+	struct cfg80211_scan_request *scan_req = mac->scan_req;
+	u16 dwell_passive = QTNF_SCAN_DWELL_PASSIVE_DEFAULT;
+	u16 dwell_active = QTNF_SCAN_DWELL_ACTIVE_DEFAULT;
+	struct wireless_dev *wdev = scan_req->wdev;
+	struct ieee80211_channel *sc;
+	struct qlink_cmd_scan *cmd;
+	struct sk_buff *cmd_skb;
+	int n_channels = 0;
+	u64 flags = 0;
+	int count;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
+					    QLINK_CMD_SCAN,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_scan *)cmd_skb->data;
+
+	if (scan_req->duration) {
+		dwell_active = scan_req->duration;
+		dwell_passive = scan_req->duration;
+	} else if (wdev->iftype == NL80211_IFTYPE_STATION &&
+		   wdev->connected) {
+		/* let device select dwell based on traffic conditions */
+		dwell_active = QTNF_SCAN_TIME_AUTO;
+		dwell_passive = QTNF_SCAN_TIME_AUTO;
+	}
+
+	cmd->n_ssids = cpu_to_le16(scan_req->n_ssids);
+	for (count = 0; count < scan_req->n_ssids; ++count) {
+		qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID,
+					 scan_req->ssids[count].ssid,
+					 scan_req->ssids[count].ssid_len);
+	}
+
+	if (scan_req->ie_len != 0)
+		qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_PROBE_REQ,
+					scan_req->ie, scan_req->ie_len);
+
+	for (count = 0; count < scan_req->n_channels; ++count) {
+		sc = scan_req->channels[count];
+		if (sc->flags & IEEE80211_CHAN_DISABLED)
+			continue;
+
+		pr_debug("[MAC%u] scan chan=%d, freq=%d, flags=%#x\n",
+			 mac->macid, sc->hw_value, sc->center_freq,
+			 sc->flags);
+
+		qtnf_cmd_channel_tlv_add(cmd_skb, sc);
+		++n_channels;
+	}
+
+	if (scan_req->flags & NL80211_SCAN_FLAG_FLUSH)
+		flags |= QLINK_SCAN_FLAG_FLUSH;
+
+	if (scan_req->duration_mandatory)
+		flags |= QLINK_SCAN_FLAG_DURATION_MANDATORY;
+
+	cmd->n_channels = cpu_to_le16(n_channels);
+	cmd->active_dwell = cpu_to_le16(dwell_active);
+	cmd->passive_dwell = cpu_to_le16(dwell_passive);
+	cmd->sample_duration = cpu_to_le16(QTNF_SCAN_SAMPLE_DURATION_DEFAULT);
+	cmd->flags = cpu_to_le64(flags);
+
+	pr_debug("[MAC%u] %s scan dwell active=%u passive=%u duration=%u\n",
+		 mac->macid,
+		 scan_req->duration_mandatory ? "mandatory" : "max",
+		 dwell_active, dwell_passive,
+		 QTNF_SCAN_SAMPLE_DURATION_DEFAULT);
+
+	if (scan_req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
+		pr_debug("[MAC%u] scan with random addr=%pM, mask=%pM\n",
+			 mac->macid,
+			 scan_req->mac_addr, scan_req->mac_addr_mask);
+		qtnf_cmd_randmac_tlv_add(cmd_skb, scan_req->mac_addr,
+					 scan_req->mac_addr_mask);
+	}
+
+	qtnf_bus_lock(mac->bus);
+	ret = qtnf_cmd_send(mac->bus, cmd_skb);
+	qtnf_bus_unlock(mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_connect(struct qtnf_vif *vif,
+			  struct cfg80211_connect_params *sme)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_connect *cmd;
+	struct qlink_auth_encr *aen;
+	int ret;
+	int i;
+	int n;
+	u32 connect_flags = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_CONNECT,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_connect *)cmd_skb->data;
+
+	ether_addr_copy(cmd->bssid, vif->bssid);
+
+	if (sme->bssid_hint)
+		ether_addr_copy(cmd->bssid_hint, sme->bssid_hint);
+	else
+		eth_zero_addr(cmd->bssid_hint);
+
+	if (sme->prev_bssid)
+		ether_addr_copy(cmd->prev_bssid, sme->prev_bssid);
+	else
+		eth_zero_addr(cmd->prev_bssid);
+
+	if ((sme->bg_scan_period >= 0) &&
+	    (sme->bg_scan_period <= SHRT_MAX))
+		cmd->bg_scan_period = cpu_to_le16(sme->bg_scan_period);
+	else
+		cmd->bg_scan_period = cpu_to_le16(-1); /* use default value */
+
+	if (sme->flags & ASSOC_REQ_DISABLE_HT)
+		connect_flags |= QLINK_STA_CONNECT_DISABLE_HT;
+	if (sme->flags & ASSOC_REQ_DISABLE_VHT)
+		connect_flags |= QLINK_STA_CONNECT_DISABLE_VHT;
+	if (sme->flags & ASSOC_REQ_USE_RRM)
+		connect_flags |= QLINK_STA_CONNECT_USE_RRM;
+
+	cmd->flags = cpu_to_le32(connect_flags);
+	memcpy(&cmd->ht_capa, &sme->ht_capa, sizeof(cmd->ht_capa));
+	memcpy(&cmd->ht_capa_mask, &sme->ht_capa_mask,
+	       sizeof(cmd->ht_capa_mask));
+	memcpy(&cmd->vht_capa, &sme->vht_capa, sizeof(cmd->vht_capa));
+	memcpy(&cmd->vht_capa_mask, &sme->vht_capa_mask,
+	       sizeof(cmd->vht_capa_mask));
+	cmd->pbss = sme->pbss;
+
+	aen = &cmd->aen;
+	aen->auth_type = sme->auth_type;
+	aen->privacy = !!sme->privacy;
+	cmd->mfp = sme->mfp;
+	aen->wpa_versions = cpu_to_le32(sme->crypto.wpa_versions);
+	aen->cipher_group = cpu_to_le32(sme->crypto.cipher_group);
+	aen->n_ciphers_pairwise = cpu_to_le32(sme->crypto.n_ciphers_pairwise);
+
+	for (i = 0; i < QLINK_MAX_NR_CIPHER_SUITES; i++)
+		aen->ciphers_pairwise[i] =
+			cpu_to_le32(sme->crypto.ciphers_pairwise[i]);
+
+	n = min(QLINK_MAX_NR_AKM_SUITES, sme->crypto.n_akm_suites);
+	aen->n_akm_suites = cpu_to_le32(n);
+
+	for (i = 0; i < n; i++)
+		aen->akm_suites[i] = cpu_to_le32(sme->crypto.akm_suites[i]);
+
+	aen->control_port = sme->crypto.control_port;
+	aen->control_port_no_encrypt =
+		sme->crypto.control_port_no_encrypt;
+	aen->control_port_ethertype =
+		cpu_to_le16(be16_to_cpu(sme->crypto.control_port_ethertype));
+
+	qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID, sme->ssid,
+				 sme->ssid_len);
+
+	if (sme->ie_len != 0)
+		qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_ASSOC_REQ,
+					sme->ie, sme->ie_len);
+
+	if (sme->channel)
+		qtnf_cmd_channel_tlv_add(cmd_skb, sme->channel);
+
+	qtnf_bus_lock(vif->mac->bus);
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_external_auth(struct qtnf_vif *vif,
+				struct cfg80211_external_auth_params *auth)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_external_auth *cmd;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_EXTERNAL_AUTH,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_external_auth *)cmd_skb->data;
+
+	ether_addr_copy(cmd->peer, auth->bssid);
+	cmd->status = cpu_to_le16(auth->status);
+
+	qtnf_bus_lock(vif->mac->bus);
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_disconnect(struct qtnf_vif *vif, u16 reason_code)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_disconnect *cmd;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_DISCONNECT,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(vif->mac->bus);
+
+	cmd = (struct qlink_cmd_disconnect *)cmd_skb->data;
+	cmd->reason = cpu_to_le16(reason_code);
+
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif, bool up)
+{
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_updown *cmd;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_UPDOWN_INTF,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_updown *)cmd_skb->data;
+	cmd->if_up = !!up;
+
+	qtnf_bus_lock(vif->mac->bus);
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req,
+			bool slave_radar, bool dfs_offload)
+{
+	struct wiphy *wiphy = priv_to_wiphy(mac);
+	struct qtnf_bus *bus = mac->bus;
+	struct sk_buff *cmd_skb;
+	int ret;
+	struct qlink_cmd_reg_notify *cmd;
+	enum nl80211_band band;
+	const struct ieee80211_supported_band *cfg_band;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
+					    QLINK_CMD_REG_NOTIFY,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_reg_notify *)cmd_skb->data;
+	cmd->alpha2[0] = req->alpha2[0];
+	cmd->alpha2[1] = req->alpha2[1];
+
+	switch (req->initiator) {
+	case NL80211_REGDOM_SET_BY_CORE:
+		cmd->initiator = QLINK_REGDOM_SET_BY_CORE;
+		break;
+	case NL80211_REGDOM_SET_BY_USER:
+		cmd->initiator = QLINK_REGDOM_SET_BY_USER;
+		break;
+	case NL80211_REGDOM_SET_BY_DRIVER:
+		cmd->initiator = QLINK_REGDOM_SET_BY_DRIVER;
+		break;
+	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
+		cmd->initiator = QLINK_REGDOM_SET_BY_COUNTRY_IE;
+		break;
+	}
+
+	switch (req->user_reg_hint_type) {
+	case NL80211_USER_REG_HINT_USER:
+		cmd->user_reg_hint_type = QLINK_USER_REG_HINT_USER;
+		break;
+	case NL80211_USER_REG_HINT_CELL_BASE:
+		cmd->user_reg_hint_type = QLINK_USER_REG_HINT_CELL_BASE;
+		break;
+	case NL80211_USER_REG_HINT_INDOOR:
+		cmd->user_reg_hint_type = QLINK_USER_REG_HINT_INDOOR;
+		break;
+	}
+
+	switch (req->dfs_region) {
+	case NL80211_DFS_FCC:
+		cmd->dfs_region = QLINK_DFS_FCC;
+		break;
+	case NL80211_DFS_ETSI:
+		cmd->dfs_region = QLINK_DFS_ETSI;
+		break;
+	case NL80211_DFS_JP:
+		cmd->dfs_region = QLINK_DFS_JP;
+		break;
+	default:
+		cmd->dfs_region = QLINK_DFS_UNSET;
+		break;
+	}
+
+	cmd->slave_radar = slave_radar;
+	cmd->dfs_offload = dfs_offload;
+	cmd->num_channels = 0;
+
+	for (band = 0; band < NUM_NL80211_BANDS; band++) {
+		unsigned int i;
+
+		cfg_band = wiphy->bands[band];
+		if (!cfg_band)
+			continue;
+
+		cmd->num_channels += cfg_band->n_channels;
+
+		for (i = 0; i < cfg_band->n_channels; ++i) {
+			qtnf_cmd_channel_tlv_add(cmd_skb,
+						 &cfg_band->channels[i]);
+		}
+	}
+
+	qtnf_bus_lock(bus);
+	ret = qtnf_cmd_send(bus, cmd_skb);
+	qtnf_bus_unlock(bus);
+
+	return ret;
+}
+
+static int
+qtnf_cmd_resp_proc_chan_stat_info(struct survey_info *survey,
+				  const u8 *payload, size_t payload_len)
+{
+	const struct qlink_chan_stats *stats = NULL;
+	const struct qlink_tlv_hdr *tlv;
+	u16 tlv_value_len;
+	u16 tlv_type;
+	const u8 *map = NULL;
+	unsigned int map_len = 0;
+	unsigned int stats_len = 0;
+
+	qlink_for_each_tlv(tlv, payload, payload_len) {
+		tlv_type = le16_to_cpu(tlv->type);
+		tlv_value_len = le16_to_cpu(tlv->len);
+
+		switch (tlv_type) {
+		case QTN_TLV_ID_BITMAP:
+			map = tlv->val;
+			map_len = tlv_value_len;
+			break;
+		case QTN_TLV_ID_CHANNEL_STATS:
+			stats = (struct qlink_chan_stats *)tlv->val;
+			stats_len = tlv_value_len;
+			break;
+		default:
+			pr_info("Unknown TLV type: %#x\n", tlv_type);
+			break;
+		}
+	}
+
+	if (!qlink_tlv_parsing_ok(tlv, payload, payload_len)) {
+		pr_err("Malformed TLV buffer\n");
+		return -EINVAL;
+	}
+
+	if (!map || !stats)
+		return 0;
+
+#define qtnf_chan_stat_avail(stat_name, bitn)	\
+	(qtnf_utils_is_bit_set(map, bitn, map_len) && \
+	 (offsetofend(struct qlink_chan_stats, stat_name) <= stats_len))
+
+	if (qtnf_chan_stat_avail(time_on, QLINK_CHAN_STAT_TIME_ON)) {
+		survey->filled |= SURVEY_INFO_TIME;
+		survey->time = le64_to_cpu(stats->time_on);
+	}
+
+	if (qtnf_chan_stat_avail(time_tx, QLINK_CHAN_STAT_TIME_TX)) {
+		survey->filled |= SURVEY_INFO_TIME_TX;
+		survey->time_tx = le64_to_cpu(stats->time_tx);
+	}
+
+	if (qtnf_chan_stat_avail(time_rx, QLINK_CHAN_STAT_TIME_RX)) {
+		survey->filled |= SURVEY_INFO_TIME_RX;
+		survey->time_rx = le64_to_cpu(stats->time_rx);
+	}
+
+	if (qtnf_chan_stat_avail(cca_busy, QLINK_CHAN_STAT_CCA_BUSY)) {
+		survey->filled |= SURVEY_INFO_TIME_BUSY;
+		survey->time_busy = le64_to_cpu(stats->cca_busy);
+	}
+
+	if (qtnf_chan_stat_avail(cca_busy_ext, QLINK_CHAN_STAT_CCA_BUSY_EXT)) {
+		survey->filled |= SURVEY_INFO_TIME_EXT_BUSY;
+		survey->time_ext_busy = le64_to_cpu(stats->cca_busy_ext);
+	}
+
+	if (qtnf_chan_stat_avail(time_scan, QLINK_CHAN_STAT_TIME_SCAN)) {
+		survey->filled |= SURVEY_INFO_TIME_SCAN;
+		survey->time_scan = le64_to_cpu(stats->time_scan);
+	}
+
+	if (qtnf_chan_stat_avail(chan_noise, QLINK_CHAN_STAT_CHAN_NOISE)) {
+		survey->filled |= SURVEY_INFO_NOISE_DBM;
+		survey->noise = stats->chan_noise;
+	}
+
+#undef qtnf_chan_stat_avail
+
+	return 0;
+}
+
+int qtnf_cmd_get_chan_stats(struct qtnf_wmac *mac, u32 chan_freq,
+			    struct survey_info *survey)
+{
+	struct sk_buff *cmd_skb, *resp_skb = NULL;
+	struct qlink_cmd_get_chan_stats *cmd;
+	struct qlink_resp_get_chan_stats *resp;
+	size_t var_data_len = 0;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
+					    QLINK_CMD_CHAN_STATS,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_get_chan_stats *)cmd_skb->data;
+	cmd->channel_freq = cpu_to_le32(chan_freq);
+
+	qtnf_bus_lock(mac->bus);
+	ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), &var_data_len);
+	qtnf_bus_unlock(mac->bus);
+
+	if (ret)
+		goto out;
+
+	resp = (struct qlink_resp_get_chan_stats *)resp_skb->data;
+
+	if (le32_to_cpu(resp->chan_freq) != chan_freq) {
+		pr_err("[MAC%u] channel stats freq %u != requested %u\n",
+		       mac->macid, le32_to_cpu(resp->chan_freq), chan_freq);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = qtnf_cmd_resp_proc_chan_stat_info(survey, resp->info,
+						var_data_len);
+
+out:
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+int qtnf_cmd_send_chan_switch(struct qtnf_vif *vif,
+			      struct cfg80211_csa_settings *params)
+{
+	struct qtnf_wmac *mac = vif->mac;
+	struct qlink_cmd_chan_switch *cmd;
+	struct sk_buff *cmd_skb;
+	int ret;
+	u64 flags = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, vif->vifid,
+					    QLINK_CMD_CHAN_SWITCH,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	if (params->radar_required)
+		flags |= QLINK_CHAN_SW_RADAR_REQUIRED;
+
+	if (params->block_tx)
+		flags |= QLINK_CHAN_SW_BLOCK_TX;
+
+	cmd = (struct qlink_cmd_chan_switch *)cmd_skb->data;
+	qlink_chandef_cfg2q(&params->chandef, &cmd->channel);
+	cmd->flags = cpu_to_le64(flags);
+	cmd->beacon_count = params->count;
+
+	qtnf_bus_lock(mac->bus);
+	ret = qtnf_cmd_send(mac->bus, cmd_skb);
+	qtnf_bus_unlock(mac->bus);
+
+	return ret;
+}
+
+int qtnf_cmd_get_channel(struct qtnf_vif *vif, struct cfg80211_chan_def *chdef)
+{
+	struct qtnf_bus *bus = vif->mac->bus;
+	const struct qlink_resp_channel_get *resp;
+	struct sk_buff *cmd_skb;
+	struct sk_buff *resp_skb = NULL;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_CHAN_GET,
+					    sizeof(struct qlink_cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(bus);
+	ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), NULL);
+	if (ret)
+		goto out;
+
+	resp = (const struct qlink_resp_channel_get *)resp_skb->data;
+	qlink_chandef_q2cfg(priv_to_wiphy(vif->mac), &resp->chan, chdef);
+
+out:
+	qtnf_bus_unlock(bus);
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+int qtnf_cmd_start_cac(const struct qtnf_vif *vif,
+		       const struct cfg80211_chan_def *chdef,
+		       u32 cac_time_ms)
+{
+	struct qtnf_bus *bus = vif->mac->bus;
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_start_cac *cmd;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_START_CAC,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_start_cac *)cmd_skb->data;
+	cmd->cac_time_ms = cpu_to_le32(cac_time_ms);
+	qlink_chandef_cfg2q(chdef, &cmd->chan);
+
+	qtnf_bus_lock(bus);
+	ret = qtnf_cmd_send(bus, cmd_skb);
+	qtnf_bus_unlock(bus);
+
+	return ret;
+}
+
+int qtnf_cmd_set_mac_acl(const struct qtnf_vif *vif,
+			 const struct cfg80211_acl_data *params)
+{
+	struct qtnf_bus *bus = vif->mac->bus;
+	struct sk_buff *cmd_skb;
+	struct qlink_tlv_hdr *tlv;
+	size_t acl_size = struct_size(params, mac_addrs, params->n_acl_entries);
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_SET_MAC_ACL,
+					    sizeof(struct qlink_cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	tlv = skb_put(cmd_skb, sizeof(*tlv) + round_up(acl_size, QLINK_ALIGN));
+	tlv->type = cpu_to_le16(QTN_TLV_ID_ACL_DATA);
+	tlv->len = cpu_to_le16(acl_size);
+	qlink_acl_data_cfg2q(params, (struct qlink_acl_data *)tlv->val);
+
+	qtnf_bus_lock(bus);
+	ret = qtnf_cmd_send(bus, cmd_skb);
+	qtnf_bus_unlock(bus);
+
+	return ret;
+}
+
+int qtnf_cmd_send_pm_set(const struct qtnf_vif *vif, u8 pm_mode, int timeout)
+{
+	struct qtnf_bus *bus = vif->mac->bus;
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_pm_set *cmd;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_PM_SET, sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_pm_set *)cmd_skb->data;
+	cmd->pm_mode = pm_mode;
+	cmd->pm_standby_timer = cpu_to_le32(timeout);
+
+	qtnf_bus_lock(bus);
+
+	ret = qtnf_cmd_send(bus, cmd_skb);
+
+	qtnf_bus_unlock(bus);
+
+	return ret;
+}
+
+int qtnf_cmd_get_tx_power(const struct qtnf_vif *vif, int *dbm)
+{
+	struct qtnf_bus *bus = vif->mac->bus;
+	const struct qlink_resp_txpwr *resp;
+	struct sk_buff *resp_skb = NULL;
+	struct qlink_cmd_txpwr *cmd;
+	struct sk_buff *cmd_skb;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_TXPWR, sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_txpwr *)cmd_skb->data;
+	cmd->op_type = QLINK_TXPWR_GET;
+
+	qtnf_bus_lock(bus);
+
+	ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), NULL);
+	if (ret)
+		goto out;
+
+	resp = (const struct qlink_resp_txpwr *)resp_skb->data;
+	*dbm = MBM_TO_DBM(le32_to_cpu(resp->txpwr));
+
+out:
+	qtnf_bus_unlock(bus);
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+int qtnf_cmd_set_tx_power(const struct qtnf_vif *vif,
+			  enum nl80211_tx_power_setting type, int mbm)
+{
+	struct qtnf_bus *bus = vif->mac->bus;
+	const struct qlink_resp_txpwr *resp;
+	struct sk_buff *resp_skb = NULL;
+	struct qlink_cmd_txpwr *cmd;
+	struct sk_buff *cmd_skb;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_TXPWR, sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_txpwr *)cmd_skb->data;
+	cmd->op_type = QLINK_TXPWR_SET;
+	cmd->txpwr_setting = type;
+	cmd->txpwr = cpu_to_le32(mbm);
+
+	qtnf_bus_lock(bus);
+
+	ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb,
+				       sizeof(*resp), NULL);
+
+	qtnf_bus_unlock(bus);
+	consume_skb(resp_skb);
+
+	return ret;
+}
+
+int qtnf_cmd_send_wowlan_set(const struct qtnf_vif *vif,
+			     const struct cfg80211_wowlan *wowl)
+{
+	struct qtnf_bus *bus = vif->mac->bus;
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_wowlan_set *cmd;
+	u32 triggers = 0;
+	int count = 0;
+	int ret = 0;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_WOWLAN_SET, sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	qtnf_bus_lock(bus);
+
+	cmd = (struct qlink_cmd_wowlan_set *)cmd_skb->data;
+
+	if (wowl) {
+		if (wowl->disconnect)
+			triggers |=  QLINK_WOWLAN_TRIG_DISCONNECT;
+
+		if (wowl->magic_pkt)
+			triggers |= QLINK_WOWLAN_TRIG_MAGIC_PKT;
+
+		if (wowl->n_patterns && wowl->patterns) {
+			triggers |= QLINK_WOWLAN_TRIG_PATTERN_PKT;
+			while (count < wowl->n_patterns) {
+				qtnf_cmd_skb_put_tlv_arr(cmd_skb,
+					QTN_TLV_ID_WOWLAN_PATTERN,
+					wowl->patterns[count].pattern,
+					wowl->patterns[count].pattern_len);
+				count++;
+			}
+		}
+	}
+
+	cmd->triggers = cpu_to_le32(triggers);
+
+	ret = qtnf_cmd_send(bus, cmd_skb);
+
+	qtnf_bus_unlock(bus);
+	return ret;
+}
+
+int qtnf_cmd_netdev_changeupper(const struct qtnf_vif *vif, int br_domain)
+{
+	struct qtnf_bus *bus = vif->mac->bus;
+	struct sk_buff *cmd_skb;
+	struct qlink_cmd_ndev_changeupper *cmd;
+	int ret;
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_NDEV_EVENT,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	pr_debug("[VIF%u.%u] set broadcast domain to %d\n",
+		 vif->mac->macid, vif->vifid, br_domain);
+
+	cmd = (struct qlink_cmd_ndev_changeupper *)cmd_skb->data;
+	cmd->nehdr.event = cpu_to_le16(QLINK_NDEV_EVENT_CHANGEUPPER);
+	cmd->upper_type = QLINK_NDEV_UPPER_TYPE_BRIDGE;
+	cmd->br_domain = cpu_to_le32(br_domain);
+
+	qtnf_bus_lock(bus);
+	ret = qtnf_cmd_send(bus, cmd_skb);
+	qtnf_bus_unlock(bus);
+
+	if (ret)
+		pr_err("[VIF%u.%u] failed to set broadcast domain\n",
+		       vif->mac->macid, vif->vifid);
+
+	return ret;
+}
+
+int qtnf_cmd_send_update_owe(struct qtnf_vif *vif,
+			     struct cfg80211_update_owe_info *owe)
+{
+	struct qlink_cmd_update_owe *cmd;
+	struct sk_buff *cmd_skb;
+	int ret;
+
+	if (sizeof(*cmd) + owe->ie_len > QTNF_MAX_CMD_BUF_SIZE) {
+		pr_warn("VIF%u.%u: OWE update IEs too big: %zu\n",
+			vif->mac->macid, vif->vifid, owe->ie_len);
+		return -E2BIG;
+	}
+
+	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+					    QLINK_CMD_UPDATE_OWE,
+					    sizeof(*cmd));
+	if (!cmd_skb)
+		return -ENOMEM;
+
+	cmd = (struct qlink_cmd_update_owe *)cmd_skb->data;
+	ether_addr_copy(cmd->peer, owe->peer);
+	cmd->status = cpu_to_le16(owe->status);
+	if (owe->ie_len && owe->ie)
+		qtnf_cmd_skb_put_buffer(cmd_skb, owe->ie, owe->ie_len);
+
+	qtnf_bus_lock(vif->mac->bus);
+	ret = qtnf_cmd_send(vif->mac->bus, cmd_skb);
+	qtnf_bus_unlock(vif->mac->bus);
+
+	return ret;
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.h b/drivers/net/wireless/quantenna/qtnfmac/commands.h
new file mode 100644
index 0000000000..72ad6ae5c7
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2016 Quantenna Communications. All rights reserved. */
+
+#ifndef QLINK_COMMANDS_H_
+#define QLINK_COMMANDS_H_
+
+#include <linux/nl80211.h>
+
+#include "core.h"
+#include "bus.h"
+
+int qtnf_cmd_send_init_fw(struct qtnf_bus *bus);
+void qtnf_cmd_send_deinit_fw(struct qtnf_bus *bus);
+int qtnf_cmd_get_hw_info(struct qtnf_bus *bus);
+int qtnf_cmd_get_mac_info(struct qtnf_wmac *mac);
+int qtnf_cmd_send_add_intf(struct qtnf_vif *vif, enum nl80211_iftype iftype,
+			   int use4addr, u8 *mac_addr);
+int qtnf_cmd_send_change_intf_type(struct qtnf_vif *vif,
+				   enum nl80211_iftype iftype,
+				   int use4addr,
+				   u8 *mac_addr);
+int qtnf_cmd_send_del_intf(struct qtnf_vif *vif);
+int qtnf_cmd_band_info_get(struct qtnf_wmac *mac,
+			   struct ieee80211_supported_band *band);
+int qtnf_cmd_send_regulatory_config(struct qtnf_wmac *mac, const char *alpha2);
+int qtnf_cmd_send_start_ap(struct qtnf_vif *vif,
+			   const struct cfg80211_ap_settings *s);
+int qtnf_cmd_send_stop_ap(struct qtnf_vif *vif);
+int qtnf_cmd_send_register_mgmt(struct qtnf_vif *vif, u16 frame_type, bool reg);
+int qtnf_cmd_send_frame(struct qtnf_vif *vif, u32 cookie, u16 flags,
+			u16 freq, const u8 *buf, size_t len);
+int qtnf_cmd_send_mgmt_set_appie(struct qtnf_vif *vif, u8 frame_type,
+				 const u8 *buf, size_t len);
+int qtnf_cmd_get_sta_info(struct qtnf_vif *vif, const u8 *sta_mac,
+			  struct station_info *sinfo);
+int qtnf_cmd_send_phy_params(struct qtnf_wmac *mac, u16 cmd_action,
+			     void *data_buf);
+int qtnf_cmd_send_add_key(struct qtnf_vif *vif, u8 key_index, bool pairwise,
+			  const u8 *mac_addr, struct key_params *params);
+int qtnf_cmd_send_del_key(struct qtnf_vif *vif, u8 key_index, bool pairwise,
+			  const u8 *mac_addr);
+int qtnf_cmd_send_set_default_key(struct qtnf_vif *vif, u8 key_index,
+				  bool unicast, bool multicast);
+int qtnf_cmd_send_set_default_mgmt_key(struct qtnf_vif *vif, u8 key_index);
+int qtnf_cmd_send_add_sta(struct qtnf_vif *vif, const u8 *mac,
+			  struct station_parameters *params);
+int qtnf_cmd_send_change_sta(struct qtnf_vif *vif, const u8 *mac,
+			     struct station_parameters *params);
+int qtnf_cmd_send_del_sta(struct qtnf_vif *vif,
+			  struct station_del_parameters *params);
+int qtnf_cmd_send_scan(struct qtnf_wmac *mac);
+int qtnf_cmd_send_connect(struct qtnf_vif *vif,
+			  struct cfg80211_connect_params *sme);
+int qtnf_cmd_send_external_auth(struct qtnf_vif *vif,
+				struct cfg80211_external_auth_params *auth);
+int qtnf_cmd_send_disconnect(struct qtnf_vif *vif,
+			     u16 reason_code);
+int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif,
+			      bool up);
+int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req,
+			bool slave_radar, bool dfs_offload);
+int qtnf_cmd_get_chan_stats(struct qtnf_wmac *mac, u32 chan_freq,
+			    struct survey_info *survey);
+int qtnf_cmd_send_chan_switch(struct qtnf_vif *vif,
+			      struct cfg80211_csa_settings *params);
+int qtnf_cmd_get_channel(struct qtnf_vif *vif, struct cfg80211_chan_def *chdef);
+int qtnf_cmd_start_cac(const struct qtnf_vif *vif,
+		       const struct cfg80211_chan_def *chdef,
+		       u32 cac_time_ms);
+int qtnf_cmd_set_mac_acl(const struct qtnf_vif *vif,
+			 const struct cfg80211_acl_data *params);
+int qtnf_cmd_send_pm_set(const struct qtnf_vif *vif, u8 pm_mode, int timeout);
+int qtnf_cmd_get_tx_power(const struct qtnf_vif *vif, int *dbm);
+int qtnf_cmd_set_tx_power(const struct qtnf_vif *vif,
+			  enum nl80211_tx_power_setting type, int mbm);
+int qtnf_cmd_send_wowlan_set(const struct qtnf_vif *vif,
+			     const struct cfg80211_wowlan *wowl);
+int qtnf_cmd_netdev_changeupper(const struct qtnf_vif *vif, int br_domain);
+int qtnf_cmd_send_update_owe(struct qtnf_vif *vif,
+			     struct cfg80211_update_owe_info *owe);
+
+#endif /* QLINK_COMMANDS_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.c b/drivers/net/wireless/quantenna/qtnfmac/core.c
new file mode 100644
index 0000000000..2a63ffdc4b
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.c
@@ -0,0 +1,946 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/if_ether.h>
+#include <linux/nospec.h>
+
+#include "core.h"
+#include "bus.h"
+#include "trans.h"
+#include "commands.h"
+#include "cfg80211.h"
+#include "event.h"
+#include "util.h"
+#include "switchdev.h"
+
+#define QTNF_PRIMARY_VIF_IDX	0
+
+static bool slave_radar = true;
+module_param(slave_radar, bool, 0644);
+MODULE_PARM_DESC(slave_radar, "set 0 to disable radar detection in slave mode");
+
+static bool dfs_offload;
+module_param(dfs_offload, bool, 0644);
+MODULE_PARM_DESC(dfs_offload, "set 1 to enable DFS offload to firmware");
+
+static struct dentry *qtnf_debugfs_dir;
+
+bool qtnf_slave_radar_get(void)
+{
+	return slave_radar;
+}
+
+bool qtnf_dfs_offload_get(void)
+{
+	return dfs_offload;
+}
+
+struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid)
+{
+	struct qtnf_wmac *mac = NULL;
+
+	if (macid >= QTNF_MAX_MAC) {
+		pr_err("invalid MAC index %u\n", macid);
+		return NULL;
+	}
+
+	macid = array_index_nospec(macid, QTNF_MAX_MAC);
+	mac = bus->mac[macid];
+
+	if (unlikely(!mac)) {
+		pr_err("MAC%u: not initialized\n", macid);
+		return NULL;
+	}
+
+	return mac;
+}
+
+/* Netdev handler for open.
+ */
+static int qtnf_netdev_open(struct net_device *ndev)
+{
+	netif_carrier_off(ndev);
+	qtnf_netdev_updown(ndev, 1);
+	return 0;
+}
+
+/* Netdev handler for close.
+ */
+static int qtnf_netdev_close(struct net_device *ndev)
+{
+	netif_carrier_off(ndev);
+	qtnf_virtual_intf_cleanup(ndev);
+	qtnf_netdev_updown(ndev, 0);
+	return 0;
+}
+
+static void qtnf_packet_send_hi_pri(struct sk_buff *skb)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(skb->dev);
+
+	skb_queue_tail(&vif->high_pri_tx_queue, skb);
+	queue_work(vif->mac->bus->hprio_workqueue, &vif->high_pri_tx_work);
+}
+
+/* Netdev handler for data transmission.
+ */
+static netdev_tx_t
+qtnf_netdev_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+	struct qtnf_vif *vif;
+	struct qtnf_wmac *mac;
+
+	vif = qtnf_netdev_get_priv(ndev);
+
+	if (unlikely(skb->dev != ndev)) {
+		pr_err_ratelimited("invalid skb->dev");
+		dev_kfree_skb_any(skb);
+		return 0;
+	}
+
+	if (unlikely(vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)) {
+		pr_err_ratelimited("%s: VIF not initialized\n", ndev->name);
+		dev_kfree_skb_any(skb);
+		return 0;
+	}
+
+	mac = vif->mac;
+	if (unlikely(!mac)) {
+		pr_err_ratelimited("%s: NULL mac pointer", ndev->name);
+		dev_kfree_skb_any(skb);
+		return 0;
+	}
+
+	if (!skb->len || (skb->len > ETH_FRAME_LEN)) {
+		pr_err_ratelimited("%s: invalid skb len %d\n", ndev->name,
+				   skb->len);
+		dev_kfree_skb_any(skb);
+		ndev->stats.tx_dropped++;
+		return 0;
+	}
+
+	/* tx path is enabled: reset vif timeout */
+	vif->cons_tx_timeout_cnt = 0;
+
+	if (unlikely(skb->protocol == htons(ETH_P_PAE))) {
+		qtnf_packet_send_hi_pri(skb);
+		dev_sw_netstats_tx_add(ndev, 1, skb->len);
+		return NETDEV_TX_OK;
+	}
+
+	return qtnf_bus_data_tx(mac->bus, skb, mac->macid, vif->vifid);
+}
+
+/* Netdev handler for transmission timeout.
+ */
+static void qtnf_netdev_tx_timeout(struct net_device *ndev, unsigned int txqueue)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+	struct qtnf_wmac *mac;
+	struct qtnf_bus *bus;
+
+	if (unlikely(!vif || !vif->mac || !vif->mac->bus))
+		return;
+
+	mac = vif->mac;
+	bus = mac->bus;
+
+	pr_warn("VIF%u.%u: Tx timeout- %lu\n", mac->macid, vif->vifid, jiffies);
+
+	qtnf_bus_data_tx_timeout(bus, ndev);
+	ndev->stats.tx_errors++;
+
+	if (++vif->cons_tx_timeout_cnt > QTNF_TX_TIMEOUT_TRSHLD) {
+		pr_err("Tx timeout threshold exceeded !\n");
+		pr_err("schedule interface %s reset !\n", netdev_name(ndev));
+		queue_work(bus->workqueue, &vif->reset_work);
+	}
+}
+
+static int qtnf_netdev_set_mac_address(struct net_device *ndev, void *addr)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+	struct sockaddr *sa = addr;
+	int ret;
+	unsigned char old_addr[ETH_ALEN];
+
+	memcpy(old_addr, sa->sa_data, sizeof(old_addr));
+
+	ret = eth_mac_addr(ndev, sa);
+	if (ret)
+		return ret;
+
+	qtnf_scan_done(vif->mac, true);
+
+	ret = qtnf_cmd_send_change_intf_type(vif, vif->wdev.iftype,
+					     vif->wdev.use_4addr,
+					     sa->sa_data);
+
+	if (ret)
+		eth_hw_addr_set(ndev, old_addr);
+
+	return ret;
+}
+
+static int qtnf_netdev_port_parent_id(struct net_device *ndev,
+				      struct netdev_phys_item_id *ppid)
+{
+	const struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+	const struct qtnf_bus *bus = vif->mac->bus;
+
+	ppid->id_len = sizeof(bus->hw_id);
+	memcpy(&ppid->id, bus->hw_id, ppid->id_len);
+
+	return 0;
+}
+
+static int qtnf_netdev_alloc_pcpu_stats(struct net_device *dev)
+{
+	dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+
+	return dev->tstats ? 0 : -ENOMEM;
+}
+
+static void qtnf_netdev_free_pcpu_stats(struct net_device *dev)
+{
+	free_percpu(dev->tstats);
+}
+
+/* Network device ops handlers */
+const struct net_device_ops qtnf_netdev_ops = {
+	.ndo_init = qtnf_netdev_alloc_pcpu_stats,
+	.ndo_uninit = qtnf_netdev_free_pcpu_stats,
+	.ndo_open = qtnf_netdev_open,
+	.ndo_stop = qtnf_netdev_close,
+	.ndo_start_xmit = qtnf_netdev_hard_start_xmit,
+	.ndo_tx_timeout = qtnf_netdev_tx_timeout,
+	.ndo_get_stats64 = dev_get_tstats64,
+	.ndo_set_mac_address = qtnf_netdev_set_mac_address,
+	.ndo_get_port_parent_id = qtnf_netdev_port_parent_id,
+};
+
+static int qtnf_mac_init_single_band(struct wiphy *wiphy,
+				     struct qtnf_wmac *mac,
+				     enum nl80211_band band)
+{
+	int ret;
+
+	wiphy->bands[band] = kzalloc(sizeof(*wiphy->bands[band]), GFP_KERNEL);
+	if (!wiphy->bands[band])
+		return -ENOMEM;
+
+	wiphy->bands[band]->band = band;
+
+	ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]);
+	if (ret) {
+		pr_err("MAC%u: band %u: failed to get chans info: %d\n",
+		       mac->macid, band, ret);
+		return ret;
+	}
+
+	qtnf_band_init_rates(wiphy->bands[band]);
+
+	return 0;
+}
+
+static int qtnf_mac_init_bands(struct qtnf_wmac *mac)
+{
+	struct wiphy *wiphy = priv_to_wiphy(mac);
+	int ret = 0;
+
+	if (mac->macinfo.bands_cap & QLINK_BAND_2GHZ) {
+		ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_2GHZ);
+		if (ret)
+			goto out;
+	}
+
+	if (mac->macinfo.bands_cap & QLINK_BAND_5GHZ) {
+		ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_5GHZ);
+		if (ret)
+			goto out;
+	}
+
+	if (mac->macinfo.bands_cap & QLINK_BAND_60GHZ)
+		ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_60GHZ);
+
+out:
+	return ret;
+}
+
+struct qtnf_vif *qtnf_mac_get_free_vif(struct qtnf_wmac *mac)
+{
+	struct qtnf_vif *vif;
+	int i;
+
+	for (i = 0; i < QTNF_MAX_INTF; i++) {
+		vif = &mac->iflist[i];
+		if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)
+			return vif;
+	}
+
+	return NULL;
+}
+
+struct qtnf_vif *qtnf_mac_get_base_vif(struct qtnf_wmac *mac)
+{
+	struct qtnf_vif *vif;
+
+	vif = &mac->iflist[QTNF_PRIMARY_VIF_IDX];
+
+	if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)
+		return NULL;
+
+	return vif;
+}
+
+void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac)
+{
+	struct ieee80211_iface_combination *comb;
+	int i;
+
+	if (mac->macinfo.if_comb) {
+		for (i = 0; i < mac->macinfo.n_if_comb; i++) {
+			comb = &mac->macinfo.if_comb[i];
+			kfree(comb->limits);
+			comb->limits = NULL;
+		}
+
+		kfree(mac->macinfo.if_comb);
+		mac->macinfo.if_comb = NULL;
+	}
+}
+
+void qtnf_mac_ext_caps_free(struct qtnf_wmac *mac)
+{
+	if (mac->macinfo.extended_capabilities_len) {
+		kfree(mac->macinfo.extended_capabilities);
+		mac->macinfo.extended_capabilities = NULL;
+
+		kfree(mac->macinfo.extended_capabilities_mask);
+		mac->macinfo.extended_capabilities_mask = NULL;
+
+		mac->macinfo.extended_capabilities_len = 0;
+	}
+}
+
+static void qtnf_vif_reset_handler(struct work_struct *work)
+{
+	struct qtnf_vif *vif = container_of(work, struct qtnf_vif, reset_work);
+
+	rtnl_lock();
+
+	if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) {
+		rtnl_unlock();
+		return;
+	}
+
+	/* stop tx completely */
+	netif_tx_stop_all_queues(vif->netdev);
+	if (netif_carrier_ok(vif->netdev))
+		netif_carrier_off(vif->netdev);
+
+	qtnf_cfg80211_vif_reset(vif);
+
+	rtnl_unlock();
+}
+
+static void qtnf_mac_init_primary_intf(struct qtnf_wmac *mac)
+{
+	struct qtnf_vif *vif = &mac->iflist[QTNF_PRIMARY_VIF_IDX];
+
+	vif->wdev.iftype = NL80211_IFTYPE_STATION;
+	vif->bss_priority = QTNF_DEF_BSS_PRIORITY;
+	vif->wdev.wiphy = priv_to_wiphy(mac);
+	INIT_WORK(&vif->reset_work, qtnf_vif_reset_handler);
+	vif->cons_tx_timeout_cnt = 0;
+}
+
+static void qtnf_mac_scan_finish(struct qtnf_wmac *mac, bool aborted)
+{
+	struct cfg80211_scan_info info = {
+		.aborted = aborted,
+	};
+
+	mutex_lock(&mac->mac_lock);
+
+	if (mac->scan_req) {
+		cfg80211_scan_done(mac->scan_req, &info);
+		mac->scan_req = NULL;
+	}
+
+	mutex_unlock(&mac->mac_lock);
+}
+
+void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted)
+{
+	cancel_delayed_work_sync(&mac->scan_timeout);
+	qtnf_mac_scan_finish(mac, aborted);
+}
+
+static void qtnf_mac_scan_timeout(struct work_struct *work)
+{
+	struct qtnf_wmac *mac =
+		container_of(work, struct qtnf_wmac, scan_timeout.work);
+
+	pr_warn("MAC%d: scan timed out\n", mac->macid);
+	qtnf_mac_scan_finish(mac, true);
+}
+
+static void qtnf_vif_send_data_high_pri(struct work_struct *work)
+{
+	struct qtnf_vif *vif =
+		container_of(work, struct qtnf_vif, high_pri_tx_work);
+	struct sk_buff *skb;
+
+	if (!vif->netdev ||
+	    vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)
+		return;
+
+	while ((skb = skb_dequeue(&vif->high_pri_tx_queue))) {
+		qtnf_cmd_send_frame(vif, 0, QLINK_FRAME_TX_FLAG_8023,
+				    0, skb->data, skb->len);
+		dev_kfree_skb_any(skb);
+	}
+}
+
+static struct qtnf_wmac *qtnf_core_mac_alloc(struct qtnf_bus *bus,
+					     unsigned int macid)
+{
+	struct platform_device *pdev = NULL;
+	struct qtnf_wmac *mac;
+	struct qtnf_vif *vif;
+	struct wiphy *wiphy;
+	unsigned int i;
+
+	if (bus->hw_info.num_mac > 1) {
+		pdev = platform_device_register_data(bus->dev,
+						     dev_name(bus->dev),
+						     macid, NULL, 0);
+		if (IS_ERR(pdev))
+			return ERR_PTR(-EINVAL);
+	}
+
+	wiphy = qtnf_wiphy_allocate(bus, pdev);
+	if (!wiphy) {
+		if (pdev)
+			platform_device_unregister(pdev);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	mac = wiphy_priv(wiphy);
+
+	mac->macid = macid;
+	mac->pdev = pdev;
+	mac->bus = bus;
+	mutex_init(&mac->mac_lock);
+	INIT_DELAYED_WORK(&mac->scan_timeout, qtnf_mac_scan_timeout);
+
+	for (i = 0; i < QTNF_MAX_INTF; i++) {
+		vif = &mac->iflist[i];
+
+		memset(vif, 0, sizeof(*vif));
+		vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+		vif->mac = mac;
+		vif->vifid = i;
+		qtnf_sta_list_init(&vif->sta_list);
+		INIT_WORK(&vif->high_pri_tx_work, qtnf_vif_send_data_high_pri);
+		skb_queue_head_init(&vif->high_pri_tx_queue);
+	}
+
+	qtnf_mac_init_primary_intf(mac);
+	bus->mac[macid] = mac;
+
+	return mac;
+}
+
+static const struct ethtool_ops qtnf_ethtool_ops = {
+	.get_drvinfo = cfg80211_get_drvinfo,
+};
+
+int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *vif,
+			 const char *name, unsigned char name_assign_type)
+{
+	struct wiphy *wiphy = priv_to_wiphy(mac);
+	struct net_device *dev;
+	void *qdev_vif;
+	int ret;
+
+	dev = alloc_netdev_mqs(sizeof(struct qtnf_vif *), name,
+			       name_assign_type, ether_setup, 1, 1);
+	if (!dev)
+		return -ENOMEM;
+
+	vif->netdev = dev;
+
+	dev->netdev_ops = &qtnf_netdev_ops;
+	dev->needs_free_netdev = true;
+	dev_net_set(dev, wiphy_net(wiphy));
+	dev->ieee80211_ptr = &vif->wdev;
+	eth_hw_addr_set(dev, vif->mac_addr);
+	dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
+	dev->watchdog_timeo = QTNF_DEF_WDOG_TIMEOUT;
+	dev->tx_queue_len = 100;
+	dev->ethtool_ops = &qtnf_ethtool_ops;
+
+	if (qtnf_hwcap_is_set(&mac->bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE))
+		dev->needed_tailroom = sizeof(struct qtnf_frame_meta_info);
+
+	qdev_vif = netdev_priv(dev);
+	*((void **)qdev_vif) = vif;
+
+	SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
+
+	ret = cfg80211_register_netdevice(dev);
+	if (ret) {
+		free_netdev(dev);
+		vif->netdev = NULL;
+	}
+
+	return ret;
+}
+
+static void qtnf_core_mac_detach(struct qtnf_bus *bus, unsigned int macid)
+{
+	struct qtnf_wmac *mac;
+	struct wiphy *wiphy;
+	struct qtnf_vif *vif;
+	unsigned int i;
+	enum nl80211_band band;
+
+	mac = bus->mac[macid];
+
+	if (!mac)
+		return;
+
+	wiphy = priv_to_wiphy(mac);
+
+	for (i = 0; i < QTNF_MAX_INTF; i++) {
+		vif = &mac->iflist[i];
+		rtnl_lock();
+		if (vif->netdev &&
+		    vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) {
+			qtnf_virtual_intf_cleanup(vif->netdev);
+			qtnf_del_virtual_intf(wiphy, &vif->wdev);
+		}
+		rtnl_unlock();
+		qtnf_sta_list_free(&vif->sta_list);
+	}
+
+	if (mac->wiphy_registered)
+		wiphy_unregister(wiphy);
+
+	for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; ++band) {
+		if (!wiphy->bands[band])
+			continue;
+
+		kfree(wiphy->bands[band]->iftype_data);
+		wiphy->bands[band]->n_iftype_data = 0;
+
+		kfree(wiphy->bands[band]->channels);
+		wiphy->bands[band]->n_channels = 0;
+
+		kfree(wiphy->bands[band]);
+		wiphy->bands[band] = NULL;
+	}
+
+	platform_device_unregister(mac->pdev);
+	qtnf_mac_iface_comb_free(mac);
+	qtnf_mac_ext_caps_free(mac);
+	kfree(mac->macinfo.wowlan);
+	kfree(mac->rd);
+	mac->rd = NULL;
+	wiphy_free(wiphy);
+	bus->mac[macid] = NULL;
+}
+
+static int qtnf_core_mac_attach(struct qtnf_bus *bus, unsigned int macid)
+{
+	struct qtnf_wmac *mac;
+	struct qtnf_vif *vif;
+	int ret;
+
+	if (!(bus->hw_info.mac_bitmap & BIT(macid))) {
+		pr_info("MAC%u is not active in FW\n", macid);
+		return 0;
+	}
+
+	mac = qtnf_core_mac_alloc(bus, macid);
+	if (IS_ERR(mac)) {
+		pr_err("MAC%u allocation failed\n", macid);
+		return PTR_ERR(mac);
+	}
+
+	vif = qtnf_mac_get_base_vif(mac);
+	if (!vif) {
+		pr_err("MAC%u: primary VIF is not ready\n", macid);
+		ret = -EFAULT;
+		goto error;
+	}
+
+	ret = qtnf_cmd_send_add_intf(vif, vif->wdev.iftype,
+				     vif->wdev.use_4addr, vif->mac_addr);
+	if (ret) {
+		pr_err("MAC%u: failed to add VIF\n", macid);
+		goto error;
+	}
+
+	ret = qtnf_cmd_get_mac_info(mac);
+	if (ret) {
+		pr_err("MAC%u: failed to get MAC info\n", macid);
+		goto error_del_vif;
+	}
+
+	/* Use MAC address of the first active radio as a unique device ID */
+	if (is_zero_ether_addr(mac->bus->hw_id))
+		ether_addr_copy(mac->bus->hw_id, mac->macaddr);
+
+	ret = qtnf_mac_init_bands(mac);
+	if (ret) {
+		pr_err("MAC%u: failed to init bands\n", macid);
+		goto error_del_vif;
+	}
+
+	ret = qtnf_wiphy_register(&bus->hw_info, mac);
+	if (ret) {
+		pr_err("MAC%u: wiphy registration failed\n", macid);
+		goto error_del_vif;
+	}
+
+	mac->wiphy_registered = 1;
+
+	rtnl_lock();
+	wiphy_lock(priv_to_wiphy(mac));
+	ret = qtnf_core_net_attach(mac, vif, "wlan%d", NET_NAME_ENUM);
+	wiphy_unlock(priv_to_wiphy(mac));
+	rtnl_unlock();
+
+	if (ret) {
+		pr_err("MAC%u: failed to attach netdev\n", macid);
+		goto error_del_vif;
+	}
+
+	if (qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE)) {
+		ret = qtnf_cmd_netdev_changeupper(vif, vif->netdev->ifindex);
+		if (ret)
+			goto error;
+	}
+
+	pr_debug("MAC%u initialized\n", macid);
+
+	return 0;
+
+error_del_vif:
+	qtnf_cmd_send_del_intf(vif);
+	vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+error:
+	qtnf_core_mac_detach(bus, macid);
+	return ret;
+}
+
+bool qtnf_netdev_is_qtn(const struct net_device *ndev)
+{
+	return ndev->netdev_ops == &qtnf_netdev_ops;
+}
+
+static int qtnf_check_br_ports(struct net_device *dev,
+			       struct netdev_nested_priv *priv)
+{
+	struct net_device *ndev = (struct net_device *)priv->data;
+
+	if (dev != ndev && netdev_port_same_parent_id(dev, ndev))
+		return -ENOTSUPP;
+
+	return 0;
+}
+
+static int qtnf_core_netdevice_event(struct notifier_block *nb,
+				     unsigned long event, void *ptr)
+{
+	struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
+	const struct netdev_notifier_changeupper_info *info;
+	struct netdev_nested_priv priv = {
+		.data = (void *)ndev,
+	};
+	struct net_device *brdev;
+	struct qtnf_vif *vif;
+	struct qtnf_bus *bus;
+	int br_domain;
+	int ret = 0;
+
+	if (!qtnf_netdev_is_qtn(ndev))
+		return NOTIFY_DONE;
+
+	if (!net_eq(dev_net(ndev), &init_net))
+		return NOTIFY_OK;
+
+	vif = qtnf_netdev_get_priv(ndev);
+	bus = vif->mac->bus;
+
+	switch (event) {
+	case NETDEV_CHANGEUPPER:
+		info = ptr;
+		brdev = info->upper_dev;
+
+		if (!netif_is_bridge_master(brdev))
+			break;
+
+		pr_debug("[VIF%u.%u] change bridge: %s %s\n",
+			 vif->mac->macid, vif->vifid, netdev_name(brdev),
+			 info->linking ? "add" : "del");
+
+		if (IS_ENABLED(CONFIG_NET_SWITCHDEV) &&
+		    qtnf_hwcap_is_set(&bus->hw_info,
+				      QLINK_HW_CAPAB_HW_BRIDGE)) {
+			if (info->linking)
+				br_domain = brdev->ifindex;
+			else
+				br_domain = ndev->ifindex;
+
+			ret = qtnf_cmd_netdev_changeupper(vif, br_domain);
+		} else {
+			ret = netdev_walk_all_lower_dev(brdev,
+							qtnf_check_br_ports,
+							&priv);
+		}
+
+		break;
+	default:
+		break;
+	}
+
+	return notifier_from_errno(ret);
+}
+
+int qtnf_core_attach(struct qtnf_bus *bus)
+{
+	unsigned int i;
+	int ret;
+
+	qtnf_trans_init(bus);
+	qtnf_bus_data_rx_start(bus);
+
+	bus->workqueue = alloc_ordered_workqueue("QTNF_BUS", 0);
+	if (!bus->workqueue) {
+		pr_err("failed to alloc main workqueue\n");
+		ret = -ENOMEM;
+		goto error;
+	}
+
+	bus->hprio_workqueue = alloc_workqueue("QTNF_HPRI", WQ_HIGHPRI, 0);
+	if (!bus->hprio_workqueue) {
+		pr_err("failed to alloc high prio workqueue\n");
+		ret = -ENOMEM;
+		goto error;
+	}
+
+	INIT_WORK(&bus->event_work, qtnf_event_work_handler);
+
+	ret = qtnf_cmd_send_init_fw(bus);
+	if (ret) {
+		pr_err("failed to init FW: %d\n", ret);
+		goto error;
+	}
+
+	if (QLINK_VER_MAJOR(bus->hw_info.ql_proto_ver) !=
+	    QLINK_PROTO_VER_MAJOR) {
+		pr_err("qlink driver vs FW version mismatch: %u vs %u\n",
+		       QLINK_PROTO_VER_MAJOR,
+		       QLINK_VER_MAJOR(bus->hw_info.ql_proto_ver));
+		ret = -EPROTONOSUPPORT;
+		goto error;
+	}
+
+	bus->fw_state = QTNF_FW_STATE_ACTIVE;
+	ret = qtnf_cmd_get_hw_info(bus);
+	if (ret) {
+		pr_err("failed to get HW info: %d\n", ret);
+		goto error;
+	}
+
+	if (qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE) &&
+	    bus->bus_ops->data_tx_use_meta_set)
+		bus->bus_ops->data_tx_use_meta_set(bus, true);
+
+	if (bus->hw_info.num_mac > QTNF_MAX_MAC) {
+		pr_err("no support for number of MACs=%u\n",
+		       bus->hw_info.num_mac);
+		ret = -ERANGE;
+		goto error;
+	}
+
+	for (i = 0; i < bus->hw_info.num_mac; i++) {
+		ret = qtnf_core_mac_attach(bus, i);
+
+		if (ret) {
+			pr_err("MAC%u: attach failed: %d\n", i, ret);
+			goto error;
+		}
+	}
+
+	bus->netdev_nb.notifier_call = qtnf_core_netdevice_event;
+	ret = register_netdevice_notifier(&bus->netdev_nb);
+	if (ret) {
+		pr_err("failed to register netdev notifier: %d\n", ret);
+		goto error;
+	}
+
+	bus->fw_state = QTNF_FW_STATE_RUNNING;
+	return 0;
+
+error:
+	qtnf_core_detach(bus);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(qtnf_core_attach);
+
+void qtnf_core_detach(struct qtnf_bus *bus)
+{
+	unsigned int macid;
+
+	unregister_netdevice_notifier(&bus->netdev_nb);
+	qtnf_bus_data_rx_stop(bus);
+
+	for (macid = 0; macid < QTNF_MAX_MAC; macid++)
+		qtnf_core_mac_detach(bus, macid);
+
+	if (qtnf_fw_is_up(bus))
+		qtnf_cmd_send_deinit_fw(bus);
+
+	bus->fw_state = QTNF_FW_STATE_DETACHED;
+
+	if (bus->workqueue) {
+		destroy_workqueue(bus->workqueue);
+		bus->workqueue = NULL;
+	}
+
+	if (bus->hprio_workqueue) {
+		destroy_workqueue(bus->hprio_workqueue);
+		bus->hprio_workqueue = NULL;
+	}
+
+	qtnf_trans_free(bus);
+}
+EXPORT_SYMBOL_GPL(qtnf_core_detach);
+
+static inline int qtnf_is_frame_meta_magic_valid(struct qtnf_frame_meta_info *m)
+{
+	return m->magic_s == HBM_FRAME_META_MAGIC_PATTERN_S &&
+		m->magic_e == HBM_FRAME_META_MAGIC_PATTERN_E;
+}
+
+struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	struct qtnf_frame_meta_info *meta;
+	struct net_device *ndev = NULL;
+	struct qtnf_wmac *mac;
+	struct qtnf_vif *vif;
+
+	if (unlikely(bus->fw_state != QTNF_FW_STATE_RUNNING))
+		return NULL;
+
+	meta = (struct qtnf_frame_meta_info *)
+		(skb_tail_pointer(skb) - sizeof(*meta));
+
+	if (unlikely(!qtnf_is_frame_meta_magic_valid(meta))) {
+		pr_err_ratelimited("invalid magic 0x%x:0x%x\n",
+				   meta->magic_s, meta->magic_e);
+		goto out;
+	}
+
+	if (unlikely(meta->macid >= QTNF_MAX_MAC)) {
+		pr_err_ratelimited("invalid mac(%u)\n", meta->macid);
+		goto out;
+	}
+
+	if (unlikely(meta->ifidx >= QTNF_MAX_INTF)) {
+		pr_err_ratelimited("invalid vif(%u)\n", meta->ifidx);
+		goto out;
+	}
+
+	mac = bus->mac[meta->macid];
+
+	if (unlikely(!mac)) {
+		pr_err_ratelimited("mac(%d) does not exist\n", meta->macid);
+		goto out;
+	}
+
+	vif = &mac->iflist[meta->ifidx];
+
+	if (unlikely(vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)) {
+		pr_err_ratelimited("vif(%u) does not exists\n", meta->ifidx);
+		goto out;
+	}
+
+	ndev = vif->netdev;
+
+	if (unlikely(!ndev)) {
+		pr_err_ratelimited("netdev for wlan%u.%u does not exists\n",
+				   meta->macid, meta->ifidx);
+		goto out;
+	}
+
+	__skb_trim(skb, skb->len - sizeof(*meta));
+	/* Firmware always handles packets that require flooding */
+	qtnfmac_switch_mark_skb_flooded(skb);
+
+out:
+	return ndev;
+}
+EXPORT_SYMBOL_GPL(qtnf_classify_skb);
+
+void qtnf_wake_all_queues(struct net_device *ndev)
+{
+	struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);
+	struct qtnf_wmac *mac;
+	struct qtnf_bus *bus;
+	int macid;
+	int i;
+
+	if (unlikely(!vif || !vif->mac || !vif->mac->bus))
+		return;
+
+	bus = vif->mac->bus;
+
+	for (macid = 0; macid < QTNF_MAX_MAC; macid++) {
+		if (!(bus->hw_info.mac_bitmap & BIT(macid)))
+			continue;
+
+		mac = bus->mac[macid];
+		for (i = 0; i < QTNF_MAX_INTF; i++) {
+			vif = &mac->iflist[i];
+			if (vif->netdev && netif_queue_stopped(vif->netdev))
+				netif_tx_wake_all_queues(vif->netdev);
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(qtnf_wake_all_queues);
+
+struct dentry *qtnf_get_debugfs_dir(void)
+{
+	return qtnf_debugfs_dir;
+}
+EXPORT_SYMBOL_GPL(qtnf_get_debugfs_dir);
+
+static int __init qtnf_core_register(void)
+{
+	qtnf_debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
+
+	if (IS_ERR(qtnf_debugfs_dir))
+		qtnf_debugfs_dir = NULL;
+
+	return 0;
+}
+
+static void __exit qtnf_core_exit(void)
+{
+	debugfs_remove(qtnf_debugfs_dir);
+}
+
+module_init(qtnf_core_register);
+module_exit(qtnf_core_exit);
+
+MODULE_AUTHOR("Quantenna Communications");
+MODULE_DESCRIPTION("Quantenna 802.11 wireless LAN FullMAC driver.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.h b/drivers/net/wireless/quantenna/qtnfmac/core.h
new file mode 100644
index 0000000000..b204a24074
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.h
@@ -0,0 +1,160 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_FMAC_CORE_H_
+#define _QTN_FMAC_CORE_H_
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/semaphore.h>
+#include <linux/ip.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/etherdevice.h>
+#include <net/sock.h>
+#include <net/lib80211.h>
+#include <net/cfg80211.h>
+#include <linux/vmalloc.h>
+#include <linux/firmware.h>
+#include <linux/ctype.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+#include "qlink.h"
+#include "trans.h"
+#include "qlink_util.h"
+
+#undef pr_fmt
+#define pr_fmt(fmt)	KBUILD_MODNAME ": %s: " fmt, __func__
+
+#define QTNF_MAX_VSIE_LEN		255
+#define QTNF_MAX_INTF			8
+#define QTNF_MAX_EVENT_QUEUE_LEN	255
+#define QTNF_SCAN_TIMEOUT_SEC		15
+
+#define QTNF_DEF_BSS_PRIORITY		0
+#define QTNF_DEF_WDOG_TIMEOUT		5
+#define QTNF_TX_TIMEOUT_TRSHLD		100
+
+extern const struct net_device_ops qtnf_netdev_ops;
+
+struct qtnf_bus;
+struct qtnf_vif;
+
+struct qtnf_sta_node {
+	struct list_head list;
+	u8 mac_addr[ETH_ALEN];
+};
+
+struct qtnf_sta_list {
+	struct list_head head;
+	atomic_t size;
+};
+
+struct qtnf_vif {
+	struct wireless_dev wdev;
+	u8 bssid[ETH_ALEN];
+	u8 mac_addr[ETH_ALEN];
+	u8 vifid;
+	u8 bss_priority;
+	u8 bss_status;
+	u16 mgmt_frames_bitmask;
+	struct net_device *netdev;
+	struct qtnf_wmac *mac;
+
+	struct work_struct reset_work;
+	struct work_struct high_pri_tx_work;
+	struct sk_buff_head high_pri_tx_queue;
+	struct qtnf_sta_list sta_list;
+	unsigned long cons_tx_timeout_cnt;
+	int generation;
+};
+
+struct qtnf_mac_info {
+	u8 bands_cap;
+	u8 num_tx_chain;
+	u8 num_rx_chain;
+	u16 max_ap_assoc_sta;
+	u32 frag_thr;
+	u32 rts_thr;
+	u8 lretry_limit;
+	u8 sretry_limit;
+	u8 coverage_class;
+	u8 radar_detect_widths;
+	u8 max_scan_ssids;
+	u16 max_acl_mac_addrs;
+	struct ieee80211_ht_cap ht_cap_mod_mask;
+	struct ieee80211_vht_cap vht_cap_mod_mask;
+	struct ieee80211_iface_combination *if_comb;
+	size_t n_if_comb;
+	u8 *extended_capabilities;
+	u8 *extended_capabilities_mask;
+	u8 extended_capabilities_len;
+	struct wiphy_wowlan_support *wowlan;
+};
+
+struct qtnf_wmac {
+	u8 macid;
+	u8 wiphy_registered;
+	u8 macaddr[ETH_ALEN];
+	struct qtnf_bus *bus;
+	struct qtnf_mac_info macinfo;
+	struct qtnf_vif iflist[QTNF_MAX_INTF];
+	struct cfg80211_scan_request *scan_req;
+	struct mutex mac_lock;	/* lock during wmac speicific ops */
+	struct delayed_work scan_timeout;
+	struct ieee80211_regdomain *rd;
+	struct platform_device *pdev;
+};
+
+struct qtnf_hw_info {
+	u32 ql_proto_ver;
+	u8 num_mac;
+	u8 mac_bitmap;
+	u32 fw_ver;
+	u8 total_tx_chain;
+	u8 total_rx_chain;
+	char fw_version[ETHTOOL_FWVERS_LEN];
+	u32 hw_version;
+	u8 hw_capab[QLINK_HW_CAPAB_NUM / BITS_PER_BYTE + 1];
+};
+
+struct qtnf_vif *qtnf_mac_get_free_vif(struct qtnf_wmac *mac);
+struct qtnf_vif *qtnf_mac_get_base_vif(struct qtnf_wmac *mac);
+void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac);
+void qtnf_mac_ext_caps_free(struct qtnf_wmac *mac);
+bool qtnf_slave_radar_get(void);
+bool qtnf_dfs_offload_get(void);
+struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus,
+				  struct platform_device *pdev);
+int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *priv,
+			 const char *name, unsigned char name_assign_type);
+void qtnf_main_work_queue(struct work_struct *work);
+int qtnf_cmd_send_update_phy_params(struct qtnf_wmac *mac, u32 changed);
+
+struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid);
+struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb);
+void qtnf_wake_all_queues(struct net_device *ndev);
+
+void qtnf_virtual_intf_cleanup(struct net_device *ndev);
+
+void qtnf_netdev_updown(struct net_device *ndev, bool up);
+void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted);
+struct dentry *qtnf_get_debugfs_dir(void);
+bool qtnf_netdev_is_qtn(const struct net_device *ndev);
+
+static inline struct qtnf_vif *qtnf_netdev_get_priv(struct net_device *dev)
+{
+	return *((void **)netdev_priv(dev));
+}
+
+static inline bool qtnf_hwcap_is_set(const struct qtnf_hw_info *info,
+				     unsigned int bit)
+{
+	return qtnf_utils_is_bit_set(info->hw_capab, bit,
+				     sizeof(info->hw_capab));
+}
+
+#endif /* _QTN_FMAC_CORE_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/debug.c b/drivers/net/wireless/quantenna/qtnfmac/debug.c
new file mode 100644
index 0000000000..2d3574c1f1
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/debug.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include "debug.h"
+
+void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name)
+{
+	struct dentry *parent = qtnf_get_debugfs_dir();
+
+	bus->dbg_dir = debugfs_create_dir(name, parent);
+}
+
+void qtnf_debugfs_remove(struct qtnf_bus *bus)
+{
+	debugfs_remove_recursive(bus->dbg_dir);
+	bus->dbg_dir = NULL;
+}
+
+void qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name,
+			    int (*fn)(struct seq_file *seq, void *data))
+{
+	debugfs_create_devm_seqfile(bus->dev, name, bus->dbg_dir, fn);
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/debug.h b/drivers/net/wireless/quantenna/qtnfmac/debug.h
new file mode 100644
index 0000000000..61b45536b8
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/debug.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_FMAC_DEBUG_H_
+#define _QTN_FMAC_DEBUG_H_
+
+#include <linux/debugfs.h>
+
+#include "core.h"
+#include "bus.h"
+
+#ifdef CONFIG_DEBUG_FS
+
+void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name);
+void qtnf_debugfs_remove(struct qtnf_bus *bus);
+void qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name,
+			    int (*fn)(struct seq_file *seq, void *data));
+
+#else
+
+static inline void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name)
+{
+}
+
+static inline void qtnf_debugfs_remove(struct qtnf_bus *bus)
+{
+}
+
+static inline void
+qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name,
+		       int (*fn)(struct seq_file *seq, void *data))
+{
+}
+
+#endif /* CONFIG_DEBUG_FS */
+
+#endif /* _QTN_FMAC_DEBUG_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.c b/drivers/net/wireless/quantenna/qtnfmac/event.c
new file mode 100644
index 0000000000..31bc58e96a
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.c
@@ -0,0 +1,797 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/nospec.h>
+
+#include "cfg80211.h"
+#include "core.h"
+#include "qlink.h"
+#include "bus.h"
+#include "trans.h"
+#include "util.h"
+#include "event.h"
+#include "qlink_util.h"
+
+static int
+qtnf_event_handle_sta_assoc(struct qtnf_wmac *mac, struct qtnf_vif *vif,
+			    const struct qlink_event_sta_assoc *sta_assoc,
+			    u16 len)
+{
+	const u8 *sta_addr;
+	u16 frame_control;
+	struct station_info *sinfo;
+	size_t payload_len;
+	u16 tlv_type;
+	u16 tlv_value_len;
+	const struct qlink_tlv_hdr *tlv;
+	int ret = 0;
+
+	if (unlikely(len < sizeof(*sta_assoc))) {
+		pr_err("VIF%u.%u: payload is too short (%u < %zu)\n",
+		       mac->macid, vif->vifid, len, sizeof(*sta_assoc));
+		return -EINVAL;
+	}
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_AP) {
+		pr_err("VIF%u.%u: STA_ASSOC event when not in AP mode\n",
+		       mac->macid, vif->vifid);
+		return -EPROTO;
+	}
+
+	sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
+	if (!sinfo)
+		return -ENOMEM;
+
+	sta_addr = sta_assoc->sta_addr;
+	frame_control = le16_to_cpu(sta_assoc->frame_control);
+
+	pr_debug("VIF%u.%u: MAC:%pM FC:%x\n", mac->macid, vif->vifid, sta_addr,
+		 frame_control);
+
+	qtnf_sta_list_add(vif, sta_addr);
+
+	sinfo->assoc_req_ies = NULL;
+	sinfo->assoc_req_ies_len = 0;
+	sinfo->generation = vif->generation;
+
+	payload_len = len - sizeof(*sta_assoc);
+
+	qlink_for_each_tlv(tlv, sta_assoc->ies, payload_len) {
+		tlv_type = le16_to_cpu(tlv->type);
+		tlv_value_len = le16_to_cpu(tlv->len);
+
+		if (tlv_type == QTN_TLV_ID_IE_SET) {
+			const struct qlink_tlv_ie_set *ie_set;
+			unsigned int ie_len;
+
+			if (tlv_value_len <
+			    (sizeof(*ie_set) - sizeof(ie_set->hdr))) {
+				ret = -EINVAL;
+				goto out;
+			}
+
+			ie_set = (const struct qlink_tlv_ie_set *)tlv;
+			ie_len = tlv_value_len -
+				(sizeof(*ie_set) - sizeof(ie_set->hdr));
+
+			if (ie_set->type == QLINK_IE_SET_ASSOC_REQ && ie_len) {
+				sinfo->assoc_req_ies = ie_set->ie_data;
+				sinfo->assoc_req_ies_len = ie_len;
+			}
+		}
+	}
+
+	if (!qlink_tlv_parsing_ok(tlv, sta_assoc->ies, payload_len)) {
+		pr_err("Malformed TLV buffer\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	cfg80211_new_sta(vif->netdev, sta_assoc->sta_addr, sinfo,
+			 GFP_KERNEL);
+
+out:
+	kfree(sinfo);
+	return ret;
+}
+
+static int
+qtnf_event_handle_sta_deauth(struct qtnf_wmac *mac, struct qtnf_vif *vif,
+			     const struct qlink_event_sta_deauth *sta_deauth,
+			     u16 len)
+{
+	const u8 *sta_addr;
+	u16 reason;
+
+	if (unlikely(len < sizeof(*sta_deauth))) {
+		pr_err("VIF%u.%u: payload is too short (%u < %zu)\n",
+		       mac->macid, vif->vifid, len,
+		       sizeof(struct qlink_event_sta_deauth));
+		return -EINVAL;
+	}
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_AP) {
+		pr_err("VIF%u.%u: STA_DEAUTH event when not in AP mode\n",
+		       mac->macid, vif->vifid);
+		return -EPROTO;
+	}
+
+	sta_addr = sta_deauth->sta_addr;
+	reason = le16_to_cpu(sta_deauth->reason);
+
+	pr_debug("VIF%u.%u: MAC:%pM reason:%x\n", mac->macid, vif->vifid,
+		 sta_addr, reason);
+
+	if (qtnf_sta_list_del(vif, sta_addr))
+		cfg80211_del_sta(vif->netdev, sta_deauth->sta_addr,
+				 GFP_KERNEL);
+
+	return 0;
+}
+
+static int
+qtnf_event_handle_bss_join(struct qtnf_vif *vif,
+			   const struct qlink_event_bss_join *join_info,
+			   u16 len)
+{
+	struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+	enum ieee80211_statuscode status = le16_to_cpu(join_info->status);
+	struct cfg80211_chan_def chandef;
+	struct cfg80211_bss *bss = NULL;
+	u8 *ie = NULL;
+	size_t payload_len;
+	u16 tlv_type;
+	u16 tlv_value_len;
+	const struct qlink_tlv_hdr *tlv;
+	const u8 *rsp_ies = NULL;
+	size_t rsp_ies_len = 0;
+
+	if (unlikely(len < sizeof(*join_info))) {
+		pr_err("VIF%u.%u: payload is too short (%u < %zu)\n",
+		       vif->mac->macid, vif->vifid, len,
+		       sizeof(struct qlink_event_bss_join));
+		return -EINVAL;
+	}
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
+		pr_err("VIF%u.%u: BSS_JOIN event when not in STA mode\n",
+		       vif->mac->macid, vif->vifid);
+		return -EPROTO;
+	}
+
+	pr_debug("VIF%u.%u: BSSID:%pM chan:%u status:%u\n",
+		 vif->mac->macid, vif->vifid, join_info->bssid,
+		 le16_to_cpu(join_info->chan.chan.center_freq), status);
+
+	if (status != WLAN_STATUS_SUCCESS)
+		goto done;
+
+	qlink_chandef_q2cfg(wiphy, &join_info->chan, &chandef);
+	if (!cfg80211_chandef_valid(&chandef)) {
+		pr_warn("MAC%u.%u: bad channel freq=%u cf1=%u cf2=%u bw=%u\n",
+			vif->mac->macid, vif->vifid,
+			chandef.chan ? chandef.chan->center_freq : 0,
+			chandef.center_freq1,
+			chandef.center_freq2,
+			chandef.width);
+		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+		goto done;
+	}
+
+	bss = cfg80211_get_bss(wiphy, chandef.chan, join_info->bssid,
+			       NULL, 0, IEEE80211_BSS_TYPE_ESS,
+			       IEEE80211_PRIVACY_ANY);
+	if (!bss) {
+		pr_warn("VIF%u.%u: add missing BSS:%pM chan:%u\n",
+			vif->mac->macid, vif->vifid,
+			join_info->bssid, chandef.chan->hw_value);
+
+		if (!vif->wdev.u.client.ssid_len) {
+			pr_warn("VIF%u.%u: SSID unknown for BSS:%pM\n",
+				vif->mac->macid, vif->vifid,
+				join_info->bssid);
+			status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+			goto done;
+		}
+
+		ie = kzalloc(2 + vif->wdev.u.client.ssid_len, GFP_KERNEL);
+		if (!ie) {
+			pr_warn("VIF%u.%u: IE alloc failed for BSS:%pM\n",
+				vif->mac->macid, vif->vifid,
+				join_info->bssid);
+			status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+			goto done;
+		}
+
+		ie[0] = WLAN_EID_SSID;
+		ie[1] = vif->wdev.u.client.ssid_len;
+		memcpy(ie + 2, vif->wdev.u.client.ssid,
+		       vif->wdev.u.client.ssid_len);
+
+		bss = cfg80211_inform_bss(wiphy, chandef.chan,
+					  CFG80211_BSS_FTYPE_UNKNOWN,
+					  join_info->bssid, 0,
+					  WLAN_CAPABILITY_ESS, 100,
+					  ie, 2 + vif->wdev.u.client.ssid_len,
+					  0, GFP_KERNEL);
+		if (!bss) {
+			pr_warn("VIF%u.%u: can't connect to unknown BSS: %pM\n",
+				vif->mac->macid, vif->vifid,
+				join_info->bssid);
+			status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+			goto done;
+		}
+	}
+
+	payload_len = len - sizeof(*join_info);
+
+	qlink_for_each_tlv(tlv, join_info->ies, payload_len) {
+		tlv_type = le16_to_cpu(tlv->type);
+		tlv_value_len = le16_to_cpu(tlv->len);
+
+		if (tlv_type == QTN_TLV_ID_IE_SET) {
+			const struct qlink_tlv_ie_set *ie_set;
+			unsigned int ie_len;
+
+			if (tlv_value_len <
+			    (sizeof(*ie_set) - sizeof(ie_set->hdr))) {
+				pr_warn("invalid IE_SET TLV\n");
+				status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+				goto done;
+			}
+
+			ie_set = (const struct qlink_tlv_ie_set *)tlv;
+			ie_len = tlv_value_len -
+				(sizeof(*ie_set) - sizeof(ie_set->hdr));
+
+			switch (ie_set->type) {
+			case QLINK_IE_SET_ASSOC_RESP:
+				if (ie_len) {
+					rsp_ies = ie_set->ie_data;
+					rsp_ies_len = ie_len;
+				}
+				break;
+			default:
+				pr_warn("unexpected IE type: %u\n",
+					ie_set->type);
+				break;
+			}
+		}
+	}
+
+	if (!qlink_tlv_parsing_ok(tlv, join_info->ies, payload_len))
+		pr_warn("Malformed TLV buffer\n");
+done:
+	cfg80211_connect_result(vif->netdev, join_info->bssid, NULL, 0, rsp_ies,
+				rsp_ies_len, status, GFP_KERNEL);
+	if (bss) {
+		if (!ether_addr_equal(vif->bssid, join_info->bssid))
+			ether_addr_copy(vif->bssid, join_info->bssid);
+		cfg80211_put_bss(wiphy, bss);
+	}
+
+	if (status == WLAN_STATUS_SUCCESS)
+		netif_carrier_on(vif->netdev);
+
+	kfree(ie);
+	return 0;
+}
+
+static int
+qtnf_event_handle_bss_leave(struct qtnf_vif *vif,
+			    const struct qlink_event_bss_leave *leave_info,
+			    u16 len)
+{
+	if (unlikely(len < sizeof(*leave_info))) {
+		pr_err("VIF%u.%u: payload is too short (%u < %zu)\n",
+		       vif->mac->macid, vif->vifid, len,
+		       sizeof(struct qlink_event_bss_leave));
+		return -EINVAL;
+	}
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
+		pr_err("VIF%u.%u: BSS_LEAVE event when not in STA mode\n",
+		       vif->mac->macid, vif->vifid);
+		return -EPROTO;
+	}
+
+	pr_debug("VIF%u.%u: disconnected\n", vif->mac->macid, vif->vifid);
+
+	cfg80211_disconnected(vif->netdev, le16_to_cpu(leave_info->reason),
+			      NULL, 0, 0, GFP_KERNEL);
+	netif_carrier_off(vif->netdev);
+
+	return 0;
+}
+
+static int
+qtnf_event_handle_mgmt_received(struct qtnf_vif *vif,
+				const struct qlink_event_rxmgmt *rxmgmt,
+				u16 len)
+{
+	const size_t min_len = sizeof(*rxmgmt) +
+			       sizeof(struct ieee80211_hdr_3addr);
+	const struct ieee80211_hdr_3addr *frame = (void *)rxmgmt->frame_data;
+	const u16 frame_len = len - sizeof(*rxmgmt);
+	enum nl80211_rxmgmt_flags flags = 0;
+
+	if (unlikely(len < min_len)) {
+		pr_err("VIF%u.%u: payload is too short (%u < %zu)\n",
+		       vif->mac->macid, vif->vifid, len, min_len);
+		return -EINVAL;
+	}
+
+	if (le32_to_cpu(rxmgmt->flags) & QLINK_RXMGMT_FLAG_ANSWERED)
+		flags |= NL80211_RXMGMT_FLAG_ANSWERED;
+
+	pr_debug("%s LEN:%u FC:%.4X SA:%pM\n", vif->netdev->name, frame_len,
+		 le16_to_cpu(frame->frame_control), frame->addr2);
+
+	cfg80211_rx_mgmt(&vif->wdev, le32_to_cpu(rxmgmt->freq), rxmgmt->sig_dbm,
+			 rxmgmt->frame_data, frame_len, flags);
+
+	return 0;
+}
+
+static int
+qtnf_event_handle_scan_results(struct qtnf_vif *vif,
+			       const struct qlink_event_scan_result *sr,
+			       u16 len)
+{
+	struct cfg80211_bss *bss;
+	struct ieee80211_channel *channel;
+	struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+	enum cfg80211_bss_frame_type frame_type = CFG80211_BSS_FTYPE_UNKNOWN;
+	size_t payload_len;
+	u16 tlv_type;
+	u16 tlv_value_len;
+	const struct qlink_tlv_hdr *tlv;
+	const u8 *ies = NULL;
+	size_t ies_len = 0;
+
+	if (len < sizeof(*sr)) {
+		pr_err("VIF%u.%u: payload is too short\n", vif->mac->macid,
+		       vif->vifid);
+		return -EINVAL;
+	}
+
+	channel = ieee80211_get_channel(wiphy, le16_to_cpu(sr->freq));
+	if (!channel) {
+		pr_err("VIF%u.%u: channel at %u MHz not found\n",
+		       vif->mac->macid, vif->vifid, le16_to_cpu(sr->freq));
+		return -EINVAL;
+	}
+
+	payload_len = len - sizeof(*sr);
+
+	qlink_for_each_tlv(tlv, sr->payload, payload_len) {
+		tlv_type = le16_to_cpu(tlv->type);
+		tlv_value_len = le16_to_cpu(tlv->len);
+
+		if (tlv_type == QTN_TLV_ID_IE_SET) {
+			const struct qlink_tlv_ie_set *ie_set;
+			unsigned int ie_len;
+
+			if (tlv_value_len <
+			    (sizeof(*ie_set) - sizeof(ie_set->hdr)))
+				return -EINVAL;
+
+			ie_set = (const struct qlink_tlv_ie_set *)tlv;
+			ie_len = tlv_value_len -
+				(sizeof(*ie_set) - sizeof(ie_set->hdr));
+
+			switch (ie_set->type) {
+			case QLINK_IE_SET_BEACON_IES:
+				frame_type = CFG80211_BSS_FTYPE_BEACON;
+				break;
+			case QLINK_IE_SET_PROBE_RESP_IES:
+				frame_type = CFG80211_BSS_FTYPE_PRESP;
+				break;
+			default:
+				frame_type = CFG80211_BSS_FTYPE_UNKNOWN;
+			}
+
+			if (ie_len) {
+				ies = ie_set->ie_data;
+				ies_len = ie_len;
+			}
+		}
+	}
+
+	if (!qlink_tlv_parsing_ok(tlv, sr->payload, payload_len))
+		return -EINVAL;
+
+	bss = cfg80211_inform_bss(wiphy, channel, frame_type,
+				  sr->bssid, get_unaligned_le64(&sr->tsf),
+				  le16_to_cpu(sr->capab),
+				  le16_to_cpu(sr->bintval), ies, ies_len,
+				  DBM_TO_MBM(sr->sig_dbm), GFP_KERNEL);
+	if (!bss)
+		return -ENOMEM;
+
+	cfg80211_put_bss(wiphy, bss);
+
+	return 0;
+}
+
+static int
+qtnf_event_handle_scan_complete(struct qtnf_wmac *mac,
+				const struct qlink_event_scan_complete *status,
+				u16 len)
+{
+	if (len < sizeof(*status)) {
+		pr_err("MAC%u: payload is too short\n", mac->macid);
+		return -EINVAL;
+	}
+
+	qtnf_scan_done(mac, le32_to_cpu(status->flags) & QLINK_SCAN_ABORTED);
+
+	return 0;
+}
+
+static int
+qtnf_event_handle_freq_change(struct qtnf_wmac *mac,
+			      const struct qlink_event_freq_change *data,
+			      u16 len)
+{
+	struct wiphy *wiphy = priv_to_wiphy(mac);
+	struct cfg80211_chan_def chandef;
+	struct qtnf_vif *vif;
+	int i;
+
+	if (len < sizeof(*data)) {
+		pr_err("MAC%u: payload is too short\n", mac->macid);
+		return -EINVAL;
+	}
+
+	if (!wiphy->registered)
+		return 0;
+
+	qlink_chandef_q2cfg(wiphy, &data->chan, &chandef);
+
+	if (!cfg80211_chandef_valid(&chandef)) {
+		pr_err("MAC%u: bad channel freq=%u cf1=%u cf2=%u bw=%u\n",
+		       mac->macid, chandef.chan->center_freq,
+		       chandef.center_freq1, chandef.center_freq2,
+		       chandef.width);
+		return -EINVAL;
+	}
+
+	pr_debug("MAC%d: new channel ieee=%u freq1=%u freq2=%u bw=%u\n",
+		 mac->macid, chandef.chan->hw_value, chandef.center_freq1,
+		 chandef.center_freq2, chandef.width);
+
+	for (i = 0; i < QTNF_MAX_INTF; i++) {
+		vif = &mac->iflist[i];
+
+		if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)
+			continue;
+
+		if (vif->wdev.iftype == NL80211_IFTYPE_STATION &&
+		    !vif->wdev.connected)
+			continue;
+
+		if (!vif->netdev)
+			continue;
+
+		mutex_lock(&vif->wdev.mtx);
+		cfg80211_ch_switch_notify(vif->netdev, &chandef, 0, 0);
+		mutex_unlock(&vif->wdev.mtx);
+	}
+
+	return 0;
+}
+
+static int qtnf_event_handle_radar(struct qtnf_vif *vif,
+				   const struct qlink_event_radar *ev,
+				   u16 len)
+{
+	struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+	struct cfg80211_chan_def chandef;
+
+	if (len < sizeof(*ev)) {
+		pr_err("MAC%u: payload is too short\n", vif->mac->macid);
+		return -EINVAL;
+	}
+
+	if (!wiphy->registered || !vif->netdev)
+		return 0;
+
+	qlink_chandef_q2cfg(wiphy, &ev->chan, &chandef);
+
+	if (!cfg80211_chandef_valid(&chandef)) {
+		pr_err("MAC%u: bad channel f1=%u f2=%u bw=%u\n",
+		       vif->mac->macid,
+		       chandef.center_freq1, chandef.center_freq2,
+		       chandef.width);
+		return -EINVAL;
+	}
+
+	pr_info("%s: radar event=%u f1=%u f2=%u bw=%u\n",
+		vif->netdev->name, ev->event,
+		chandef.center_freq1, chandef.center_freq2,
+		chandef.width);
+
+	switch (ev->event) {
+	case QLINK_RADAR_DETECTED:
+		cfg80211_radar_event(wiphy, &chandef, GFP_KERNEL);
+		break;
+	case QLINK_RADAR_CAC_FINISHED:
+		if (!vif->wdev.cac_started)
+			break;
+
+		cfg80211_cac_event(vif->netdev, &chandef,
+				   NL80211_RADAR_CAC_FINISHED, GFP_KERNEL);
+		break;
+	case QLINK_RADAR_CAC_ABORTED:
+		if (!vif->wdev.cac_started)
+			break;
+
+		cfg80211_cac_event(vif->netdev, &chandef,
+				   NL80211_RADAR_CAC_ABORTED, GFP_KERNEL);
+		break;
+	case QLINK_RADAR_CAC_STARTED:
+		if (vif->wdev.cac_started)
+			break;
+
+		if (!wiphy_ext_feature_isset(wiphy,
+					     NL80211_EXT_FEATURE_DFS_OFFLOAD))
+			break;
+
+		cfg80211_cac_event(vif->netdev, &chandef,
+				   NL80211_RADAR_CAC_STARTED, GFP_KERNEL);
+		break;
+	default:
+		pr_warn("%s: unhandled radar event %u\n",
+			vif->netdev->name, ev->event);
+		break;
+	}
+
+	return 0;
+}
+
+static int
+qtnf_event_handle_external_auth(struct qtnf_vif *vif,
+				const struct qlink_event_external_auth *ev,
+				u16 len)
+{
+	struct cfg80211_external_auth_params auth = {0};
+	struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+	int ret;
+
+	if (len < sizeof(*ev)) {
+		pr_err("MAC%u: payload is too short\n", vif->mac->macid);
+		return -EINVAL;
+	}
+
+	if (!wiphy->registered || !vif->netdev)
+		return 0;
+
+	if (ev->ssid_len) {
+		int len = clamp_val(ev->ssid_len, 0, IEEE80211_MAX_SSID_LEN);
+
+		memcpy(auth.ssid.ssid, ev->ssid, len);
+		auth.ssid.ssid_len = len;
+	}
+
+	auth.key_mgmt_suite = le32_to_cpu(ev->akm_suite);
+	ether_addr_copy(auth.bssid, ev->bssid);
+	auth.action = ev->action;
+
+	pr_debug("%s: external SAE processing: bss=%pM action=%u akm=%u\n",
+		 vif->netdev->name, auth.bssid, auth.action,
+		 auth.key_mgmt_suite);
+
+	ret = cfg80211_external_auth_request(vif->netdev, &auth, GFP_KERNEL);
+	if (ret)
+		pr_warn("failed to offload external auth request\n");
+
+	return ret;
+}
+
+static int
+qtnf_event_handle_mic_failure(struct qtnf_vif *vif,
+			      const struct qlink_event_mic_failure *mic_ev,
+			      u16 len)
+{
+	struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+	u8 pairwise;
+
+	if (len < sizeof(*mic_ev)) {
+		pr_err("VIF%u.%u: payload is too short (%u < %zu)\n",
+		       vif->mac->macid, vif->vifid, len,
+		       sizeof(struct qlink_event_mic_failure));
+		return -EINVAL;
+	}
+
+	if (!wiphy->registered || !vif->netdev)
+		return 0;
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
+		pr_err("VIF%u.%u: MIC_FAILURE event when not in STA mode\n",
+		       vif->mac->macid, vif->vifid);
+		return -EPROTO;
+	}
+
+	pairwise = mic_ev->pairwise ?
+		NL80211_KEYTYPE_PAIRWISE : NL80211_KEYTYPE_GROUP;
+
+	pr_info("%s: MIC error: src=%pM key_index=%u pairwise=%u\n",
+		vif->netdev->name, mic_ev->src, mic_ev->key_index, pairwise);
+
+	cfg80211_michael_mic_failure(vif->netdev, mic_ev->src, pairwise,
+				     mic_ev->key_index, NULL, GFP_KERNEL);
+
+	return 0;
+}
+
+static int
+qtnf_event_handle_update_owe(struct qtnf_vif *vif,
+			     const struct qlink_event_update_owe *owe_ev,
+			     u16 len)
+{
+	struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+	struct cfg80211_update_owe_info owe_info = {};
+	const u16 ie_len = len - sizeof(*owe_ev);
+	u8 *ie;
+
+	if (len < sizeof(*owe_ev)) {
+		pr_err("VIF%u.%u: payload is too short (%u < %zu)\n",
+		       vif->mac->macid, vif->vifid, len,
+		       sizeof(struct qlink_event_update_owe));
+		return -EINVAL;
+	}
+
+	if (!wiphy->registered || !vif->netdev)
+		return 0;
+
+	if (vif->wdev.iftype != NL80211_IFTYPE_AP) {
+		pr_err("VIF%u.%u: UPDATE_OWE event when not in AP mode\n",
+		       vif->mac->macid, vif->vifid);
+		return -EPROTO;
+	}
+
+	ie = kzalloc(ie_len, GFP_KERNEL);
+	if (!ie)
+		return -ENOMEM;
+
+	memcpy(owe_info.peer, owe_ev->peer, ETH_ALEN);
+	memcpy(ie, owe_ev->ies, ie_len);
+	owe_info.ie_len = ie_len;
+	owe_info.ie = ie;
+	owe_info.assoc_link_id = -1;
+
+	pr_info("%s: external OWE processing: peer=%pM\n",
+		vif->netdev->name, owe_ev->peer);
+
+	cfg80211_update_owe_info_event(vif->netdev, &owe_info, GFP_KERNEL);
+	kfree(ie);
+
+	return 0;
+}
+
+static int qtnf_event_parse(struct qtnf_wmac *mac,
+			    const struct sk_buff *event_skb)
+{
+	const struct qlink_event *event;
+	struct qtnf_vif *vif = NULL;
+	int ret = -1;
+	u16 event_id;
+	u16 event_len;
+	u8 vifid;
+
+	event = (const struct qlink_event *)event_skb->data;
+	event_id = le16_to_cpu(event->event_id);
+	event_len = le16_to_cpu(event->mhdr.len);
+
+	if (event->vifid >= QTNF_MAX_INTF) {
+		pr_err("invalid vif(%u)\n", event->vifid);
+		return -EINVAL;
+	}
+
+	vifid = array_index_nospec(event->vifid, QTNF_MAX_INTF);
+	vif = &mac->iflist[vifid];
+
+	switch (event_id) {
+	case QLINK_EVENT_STA_ASSOCIATED:
+		ret = qtnf_event_handle_sta_assoc(mac, vif, (const void *)event,
+						  event_len);
+		break;
+	case QLINK_EVENT_STA_DEAUTH:
+		ret = qtnf_event_handle_sta_deauth(mac, vif,
+						   (const void *)event,
+						   event_len);
+		break;
+	case QLINK_EVENT_MGMT_RECEIVED:
+		ret = qtnf_event_handle_mgmt_received(vif, (const void *)event,
+						      event_len);
+		break;
+	case QLINK_EVENT_SCAN_RESULTS:
+		ret = qtnf_event_handle_scan_results(vif, (const void *)event,
+						     event_len);
+		break;
+	case QLINK_EVENT_SCAN_COMPLETE:
+		ret = qtnf_event_handle_scan_complete(mac, (const void *)event,
+						      event_len);
+		break;
+	case QLINK_EVENT_BSS_JOIN:
+		ret = qtnf_event_handle_bss_join(vif, (const void *)event,
+						 event_len);
+		break;
+	case QLINK_EVENT_BSS_LEAVE:
+		ret = qtnf_event_handle_bss_leave(vif, (const void *)event,
+						  event_len);
+		break;
+	case QLINK_EVENT_FREQ_CHANGE:
+		ret = qtnf_event_handle_freq_change(mac, (const void *)event,
+						    event_len);
+		break;
+	case QLINK_EVENT_RADAR:
+		ret = qtnf_event_handle_radar(vif, (const void *)event,
+					      event_len);
+		break;
+	case QLINK_EVENT_EXTERNAL_AUTH:
+		ret = qtnf_event_handle_external_auth(vif, (const void *)event,
+						      event_len);
+		break;
+	case QLINK_EVENT_MIC_FAILURE:
+		ret = qtnf_event_handle_mic_failure(vif, (const void *)event,
+						    event_len);
+		break;
+	case QLINK_EVENT_UPDATE_OWE:
+		ret = qtnf_event_handle_update_owe(vif, (const void *)event,
+						   event_len);
+		break;
+	default:
+		pr_warn("unknown event type: %x\n", event_id);
+		break;
+	}
+
+	return ret;
+}
+
+static int qtnf_event_process_skb(struct qtnf_bus *bus,
+				  const struct sk_buff *skb)
+{
+	const struct qlink_event *event;
+	struct qtnf_wmac *mac;
+	int res;
+
+	if (unlikely(!skb || skb->len < sizeof(*event))) {
+		pr_err("invalid event buffer\n");
+		return -EINVAL;
+	}
+
+	event = (struct qlink_event *)skb->data;
+
+	mac = qtnf_core_get_mac(bus, event->macid);
+
+	pr_debug("new event id:%x len:%u mac:%u vif:%u\n",
+		 le16_to_cpu(event->event_id), le16_to_cpu(event->mhdr.len),
+		 event->macid, event->vifid);
+
+	if (unlikely(!mac))
+		return -ENXIO;
+
+	rtnl_lock();
+	res = qtnf_event_parse(mac, skb);
+	rtnl_unlock();
+
+	return res;
+}
+
+void qtnf_event_work_handler(struct work_struct *work)
+{
+	struct qtnf_bus *bus = container_of(work, struct qtnf_bus, event_work);
+	struct sk_buff_head *event_queue = &bus->trans.event_queue;
+	struct sk_buff *current_event_skb = skb_dequeue(event_queue);
+
+	while (current_event_skb) {
+		qtnf_event_process_skb(bus, current_event_skb);
+		dev_kfree_skb_any(current_event_skb);
+		current_event_skb = skb_dequeue(event_queue);
+	}
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.h b/drivers/net/wireless/quantenna/qtnfmac/event.h
new file mode 100644
index 0000000000..533ad99d04
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_FMAC_EVENT_H_
+#define _QTN_FMAC_EVENT_H_
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "qlink.h"
+
+void qtnf_event_work_handler(struct work_struct *work);
+
+#endif /* _QTN_FMAC_EVENT_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
new file mode 100644
index 0000000000..9ad4c120fa
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
@@ -0,0 +1,485 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2018 Quantenna Communications, Inc. All rights reserved. */
+
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+#include <linux/netdevice.h>
+#include <linux/seq_file.h>
+#include <linux/workqueue.h>
+#include <linux/completion.h>
+
+#include "pcie_priv.h"
+#include "bus.h"
+#include "shm_ipc.h"
+#include "core.h"
+#include "debug.h"
+#include "util.h"
+#include "qtn_hw_ids.h"
+
+#define QTN_SYSCTL_BAR	0
+#define QTN_SHMEM_BAR	2
+#define QTN_DMA_BAR	3
+
+#define QTN_PCIE_MAX_FW_BUFSZ		(1 * 1024 * 1024)
+
+static bool use_msi = true;
+module_param(use_msi, bool, 0644);
+MODULE_PARM_DESC(use_msi, "set 0 to use legacy interrupt");
+
+static unsigned int tx_bd_size_param;
+module_param(tx_bd_size_param, uint, 0644);
+MODULE_PARM_DESC(tx_bd_size_param, "Tx descriptors queue size");
+
+static unsigned int rx_bd_size_param;
+module_param(rx_bd_size_param, uint, 0644);
+MODULE_PARM_DESC(rx_bd_size_param, "Rx descriptors queue size");
+
+static u8 flashboot = 1;
+module_param(flashboot, byte, 0644);
+MODULE_PARM_DESC(flashboot, "set to 0 to use FW binary file on FS");
+
+static unsigned int fw_blksize_param = QTN_PCIE_MAX_FW_BUFSZ;
+module_param(fw_blksize_param, uint, 0644);
+MODULE_PARM_DESC(fw_blksize_param, "firmware loading block size in bytes");
+
+#define DRV_NAME	"qtnfmac_pcie"
+
+int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+	int ret;
+
+	ret = qtnf_shm_ipc_send(&priv->shm_ipc_ep_in, skb->data, skb->len);
+
+	if (ret == -ETIMEDOUT) {
+		pr_err("EP firmware is dead\n");
+		bus->fw_state = QTNF_FW_STATE_DEAD;
+	}
+
+	return ret;
+}
+
+int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv)
+{
+	struct sk_buff **vaddr;
+	int len;
+
+	len = priv->tx_bd_num * sizeof(*priv->tx_skb) +
+		priv->rx_bd_num * sizeof(*priv->rx_skb);
+	vaddr = devm_kzalloc(&priv->pdev->dev, len, GFP_KERNEL);
+
+	if (!vaddr)
+		return -ENOMEM;
+
+	priv->tx_skb = vaddr;
+
+	vaddr += priv->tx_bd_num;
+	priv->rx_skb = vaddr;
+
+	return 0;
+}
+
+static void qtnf_pcie_bringup_fw_async(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+	struct pci_dev *pdev = priv->pdev;
+
+	get_device(&pdev->dev);
+	schedule_work(&bus->fw_work);
+}
+
+static int qtnf_dbg_mps_show(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+
+	seq_printf(s, "%d\n", pcie_get_mps(priv->pdev));
+
+	return 0;
+}
+
+static int qtnf_dbg_msi_show(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+
+	seq_printf(s, "%u\n", priv->msi_enabled);
+
+	return 0;
+}
+
+static int qtnf_dbg_shm_stats(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+
+	seq_printf(s, "shm_ipc_ep_in.tx_packet_count(%zu)\n",
+		   priv->shm_ipc_ep_in.tx_packet_count);
+	seq_printf(s, "shm_ipc_ep_in.rx_packet_count(%zu)\n",
+		   priv->shm_ipc_ep_in.rx_packet_count);
+	seq_printf(s, "shm_ipc_ep_out.tx_packet_count(%zu)\n",
+		   priv->shm_ipc_ep_out.tx_timeout_count);
+	seq_printf(s, "shm_ipc_ep_out.rx_packet_count(%zu)\n",
+		   priv->shm_ipc_ep_out.rx_packet_count);
+
+	return 0;
+}
+
+int qtnf_pcie_fw_boot_done(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
+	char card_id[64];
+	int ret;
+
+	bus->fw_state = QTNF_FW_STATE_BOOT_DONE;
+	ret = qtnf_core_attach(bus);
+	if (ret) {
+		pr_err("failed to attach core\n");
+	} else {
+		snprintf(card_id, sizeof(card_id), "%s:%s",
+			 DRV_NAME, pci_name(priv->pdev));
+		qtnf_debugfs_init(bus, card_id);
+		qtnf_debugfs_add_entry(bus, "mps", qtnf_dbg_mps_show);
+		qtnf_debugfs_add_entry(bus, "msi_enabled", qtnf_dbg_msi_show);
+		qtnf_debugfs_add_entry(bus, "shm_stats", qtnf_dbg_shm_stats);
+	}
+
+	return ret;
+}
+
+static void qtnf_tune_pcie_mps(struct pci_dev *pdev)
+{
+	struct pci_dev *parent;
+	int mps_p, mps_o, mps_m, mps;
+	int ret;
+
+	/* current mps */
+	mps_o = pcie_get_mps(pdev);
+
+	/* maximum supported mps */
+	mps_m = 128 << pdev->pcie_mpss;
+
+	/* suggested new mps value */
+	mps = mps_m;
+
+	if (pdev->bus && pdev->bus->self) {
+		/* parent (bus) mps */
+		parent = pdev->bus->self;
+
+		if (pci_is_pcie(parent)) {
+			mps_p = pcie_get_mps(parent);
+			mps = min(mps_m, mps_p);
+		}
+	}
+
+	ret = pcie_set_mps(pdev, mps);
+	if (ret) {
+		pr_err("failed to set mps to %d, keep using current %d\n",
+		       mps, mps_o);
+		return;
+	}
+
+	pr_debug("set mps to %d (was %d, max %d)\n", mps, mps_o, mps_m);
+}
+
+static void qtnf_pcie_init_irq(struct qtnf_pcie_bus_priv *priv, bool use_msi)
+{
+	struct pci_dev *pdev = priv->pdev;
+
+	/* fall back to legacy INTx interrupts by default */
+	priv->msi_enabled = 0;
+
+	/* check if MSI capability is available */
+	if (use_msi) {
+		if (!pci_enable_msi(pdev)) {
+			pr_debug("enabled MSI interrupt\n");
+			priv->msi_enabled = 1;
+		} else {
+			pr_warn("failed to enable MSI interrupts");
+		}
+	}
+
+	if (!priv->msi_enabled) {
+		pr_warn("legacy PCIE interrupts enabled\n");
+		pci_intx(pdev, 1);
+	}
+}
+
+static void __iomem *qtnf_map_bar(struct pci_dev *pdev, u8 index)
+{
+	void __iomem *vaddr;
+	dma_addr_t busaddr;
+	size_t len;
+	int ret;
+
+	ret = pcim_iomap_regions(pdev, 1 << index, "qtnfmac_pcie");
+	if (ret)
+		return IOMEM_ERR_PTR(ret);
+
+	busaddr = pci_resource_start(pdev, index);
+	len = pci_resource_len(pdev, index);
+	vaddr = pcim_iomap_table(pdev)[index];
+	if (!vaddr)
+		return IOMEM_ERR_PTR(-ENOMEM);
+
+	pr_debug("BAR%u vaddr=0x%p busaddr=%pad len=%u\n",
+		 index, vaddr, &busaddr, (int)len);
+
+	return vaddr;
+}
+
+static void qtnf_pcie_control_rx_callback(void *arg, const u8 __iomem *buf,
+					  size_t len)
+{
+	struct qtnf_pcie_bus_priv *priv = arg;
+	struct qtnf_bus *bus = pci_get_drvdata(priv->pdev);
+	struct sk_buff *skb;
+
+	if (unlikely(len == 0)) {
+		pr_warn("zero length packet received\n");
+		return;
+	}
+
+	skb = __dev_alloc_skb(len, GFP_KERNEL);
+
+	if (unlikely(!skb)) {
+		pr_err("failed to allocate skb\n");
+		return;
+	}
+
+	memcpy_fromio(skb_put(skb, len), buf, len);
+
+	qtnf_trans_handle_rx_ctl_packet(bus, skb);
+}
+
+void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv,
+			    struct qtnf_shm_ipc_region __iomem *ipc_tx_reg,
+			    struct qtnf_shm_ipc_region __iomem *ipc_rx_reg,
+			    const struct qtnf_shm_ipc_int *ipc_int)
+{
+	const struct qtnf_shm_ipc_rx_callback rx_callback = {
+					qtnf_pcie_control_rx_callback, priv };
+
+	qtnf_shm_ipc_init(&priv->shm_ipc_ep_in, QTNF_SHM_IPC_OUTBOUND,
+			  ipc_tx_reg, priv->workqueue,
+			  ipc_int, &rx_callback);
+	qtnf_shm_ipc_init(&priv->shm_ipc_ep_out, QTNF_SHM_IPC_INBOUND,
+			  ipc_rx_reg, priv->workqueue,
+			  ipc_int, &rx_callback);
+}
+
+static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	struct qtnf_pcie_bus_priv *pcie_priv;
+	struct qtnf_bus *bus;
+	void __iomem *sysctl_bar;
+	void __iomem *epmem_bar;
+	void __iomem *dmareg_bar;
+	unsigned int chipid;
+	int ret;
+
+	if (!pci_is_pcie(pdev)) {
+		pr_err("device %s is not PCI Express\n", pci_name(pdev));
+		return -EIO;
+	}
+
+	qtnf_tune_pcie_mps(pdev);
+
+	ret = pcim_enable_device(pdev);
+	if (ret) {
+		pr_err("failed to init PCI device %x\n", pdev->device);
+		return ret;
+	}
+
+	pci_set_master(pdev);
+
+	sysctl_bar = qtnf_map_bar(pdev, QTN_SYSCTL_BAR);
+	if (IS_ERR(sysctl_bar)) {
+		pr_err("failed to map BAR%u\n", QTN_SYSCTL_BAR);
+		return PTR_ERR(sysctl_bar);
+	}
+
+	dmareg_bar = qtnf_map_bar(pdev, QTN_DMA_BAR);
+	if (IS_ERR(dmareg_bar)) {
+		pr_err("failed to map BAR%u\n", QTN_DMA_BAR);
+		return PTR_ERR(dmareg_bar);
+	}
+
+	epmem_bar = qtnf_map_bar(pdev, QTN_SHMEM_BAR);
+	if (IS_ERR(epmem_bar)) {
+		pr_err("failed to map BAR%u\n", QTN_SHMEM_BAR);
+		return PTR_ERR(epmem_bar);
+	}
+
+	chipid = qtnf_chip_id_get(sysctl_bar);
+
+	pr_info("identified device: %s\n", qtnf_chipid_to_string(chipid));
+
+	switch (chipid) {
+	case QTN_CHIP_ID_PEARL:
+	case QTN_CHIP_ID_PEARL_B:
+	case QTN_CHIP_ID_PEARL_C:
+		bus = qtnf_pcie_pearl_alloc(pdev);
+		break;
+	case QTN_CHIP_ID_TOPAZ:
+		bus = qtnf_pcie_topaz_alloc(pdev);
+		break;
+	default:
+		pr_err("unsupported chip ID 0x%x\n", chipid);
+		return -ENOTSUPP;
+	}
+
+	if (!bus)
+		return -ENOMEM;
+
+	pcie_priv = get_bus_priv(bus);
+	pci_set_drvdata(pdev, bus);
+	bus->dev = &pdev->dev;
+	bus->fw_state = QTNF_FW_STATE_DETACHED;
+	pcie_priv->pdev = pdev;
+	pcie_priv->tx_stopped = 0;
+	pcie_priv->flashboot = flashboot;
+
+	if (fw_blksize_param > QTN_PCIE_MAX_FW_BUFSZ)
+		pcie_priv->fw_blksize =  QTN_PCIE_MAX_FW_BUFSZ;
+	else
+		pcie_priv->fw_blksize = fw_blksize_param;
+
+	mutex_init(&bus->bus_lock);
+	spin_lock_init(&pcie_priv->tx_lock);
+	spin_lock_init(&pcie_priv->tx_reclaim_lock);
+
+	pcie_priv->tx_full_count = 0;
+	pcie_priv->tx_done_count = 0;
+	pcie_priv->pcie_irq_count = 0;
+	pcie_priv->tx_reclaim_done = 0;
+	pcie_priv->tx_reclaim_req = 0;
+
+	pcie_priv->workqueue = create_singlethread_workqueue("QTNF_PCIE");
+	if (!pcie_priv->workqueue) {
+		pr_err("failed to alloc bus workqueue\n");
+		return -ENODEV;
+	}
+
+	ret = dma_set_mask_and_coherent(&pdev->dev,
+					pcie_priv->dma_mask_get_cb());
+	if (ret) {
+		pr_err("PCIE DMA coherent mask init failed 0x%llx\n",
+		       pcie_priv->dma_mask_get_cb());
+		goto error;
+	}
+
+	init_dummy_netdev(&bus->mux_dev);
+	qtnf_pcie_init_irq(pcie_priv, use_msi);
+	pcie_priv->sysctl_bar = sysctl_bar;
+	pcie_priv->dmareg_bar = dmareg_bar;
+	pcie_priv->epmem_bar = epmem_bar;
+	pci_save_state(pdev);
+
+	ret = pcie_priv->probe_cb(bus, tx_bd_size_param, rx_bd_size_param);
+	if (ret)
+		goto error;
+
+	qtnf_pcie_bringup_fw_async(bus);
+	return 0;
+
+error:
+	destroy_workqueue(pcie_priv->workqueue);
+	pci_set_drvdata(pdev, NULL);
+	return ret;
+}
+
+static void qtnf_pcie_free_shm_ipc(struct qtnf_pcie_bus_priv *priv)
+{
+	qtnf_shm_ipc_free(&priv->shm_ipc_ep_in);
+	qtnf_shm_ipc_free(&priv->shm_ipc_ep_out);
+}
+
+static void qtnf_pcie_remove(struct pci_dev *dev)
+{
+	struct qtnf_pcie_bus_priv *priv;
+	struct qtnf_bus *bus;
+
+	bus = pci_get_drvdata(dev);
+	if (!bus)
+		return;
+
+	priv = get_bus_priv(bus);
+
+	cancel_work_sync(&bus->fw_work);
+
+	if (qtnf_fw_is_attached(bus))
+		qtnf_core_detach(bus);
+
+	netif_napi_del(&bus->mux_napi);
+	destroy_workqueue(priv->workqueue);
+	tasklet_kill(&priv->reclaim_tq);
+
+	qtnf_pcie_free_shm_ipc(priv);
+	qtnf_debugfs_remove(bus);
+	priv->remove_cb(bus);
+	pci_set_drvdata(priv->pdev, NULL);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int qtnf_pcie_suspend(struct device *dev)
+{
+	struct qtnf_pcie_bus_priv *priv;
+	struct qtnf_bus *bus;
+
+	bus = dev_get_drvdata(dev);
+	if (!bus)
+		return -EFAULT;
+
+	priv = get_bus_priv(bus);
+	return priv->suspend_cb(bus);
+}
+
+static int qtnf_pcie_resume(struct device *dev)
+{
+	struct qtnf_pcie_bus_priv *priv;
+	struct qtnf_bus *bus;
+
+	bus = dev_get_drvdata(dev);
+	if (!bus)
+		return -EFAULT;
+
+	priv = get_bus_priv(bus);
+	return priv->resume_cb(bus);
+}
+
+/* Power Management Hooks */
+static SIMPLE_DEV_PM_OPS(qtnf_pcie_pm_ops, qtnf_pcie_suspend,
+			 qtnf_pcie_resume);
+#endif
+
+static const struct pci_device_id qtnf_pcie_devid_table[] = {
+	{
+		PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QSR,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+	},
+	{ },
+};
+
+MODULE_DEVICE_TABLE(pci, qtnf_pcie_devid_table);
+
+static struct pci_driver qtnf_pcie_drv_data = {
+	.name = DRV_NAME,
+	.id_table = qtnf_pcie_devid_table,
+	.probe = qtnf_pcie_probe,
+	.remove = qtnf_pcie_remove,
+#ifdef CONFIG_PM_SLEEP
+	.driver = {
+		.pm = &qtnf_pcie_pm_ops,
+	},
+#endif
+};
+
+module_pci_driver(qtnf_pcie_drv_data)
+
+MODULE_AUTHOR("Quantenna Communications");
+MODULE_DESCRIPTION("Quantenna PCIe bus driver for 802.11 wireless LAN.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
new file mode 100644
index 0000000000..2a6a928e13
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2018 Quantenna Communications, Inc. All rights reserved. */
+
+#ifndef _QTN_FMAC_PCIE_H_
+#define _QTN_FMAC_PCIE_H_
+
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+
+#include "shm_ipc.h"
+#include "bus.h"
+
+#define SKB_BUF_SIZE		2048
+
+#define QTN_FW_DL_TIMEOUT_MS	3000
+#define QTN_FW_QLINK_TIMEOUT_MS	30000
+#define QTN_EP_RESET_WAIT_MS	1000
+
+struct qtnf_pcie_bus_priv {
+	struct pci_dev *pdev;
+
+	int (*probe_cb)(struct qtnf_bus *bus, unsigned int tx_bd_size,
+			unsigned int rx_bd_size);
+	void (*remove_cb)(struct qtnf_bus *bus);
+	int (*suspend_cb)(struct qtnf_bus *bus);
+	int (*resume_cb)(struct qtnf_bus *bus);
+	u64 (*dma_mask_get_cb)(void);
+
+	spinlock_t tx_reclaim_lock;
+	spinlock_t tx_lock;
+
+	struct workqueue_struct *workqueue;
+	struct tasklet_struct reclaim_tq;
+
+	void __iomem *sysctl_bar;
+	void __iomem *epmem_bar;
+	void __iomem *dmareg_bar;
+
+	struct qtnf_shm_ipc shm_ipc_ep_in;
+	struct qtnf_shm_ipc shm_ipc_ep_out;
+
+	u16 tx_bd_num;
+	u16 rx_bd_num;
+
+	struct sk_buff **tx_skb;
+	struct sk_buff **rx_skb;
+
+	unsigned int fw_blksize;
+
+	u32 rx_bd_w_index;
+	u32 rx_bd_r_index;
+
+	u32 tx_bd_w_index;
+	u32 tx_bd_r_index;
+
+	/* diagnostics stats */
+	u32 pcie_irq_count;
+	u32 tx_full_count;
+	u32 tx_done_count;
+	u32 tx_reclaim_done;
+	u32 tx_reclaim_req;
+
+	u8 msi_enabled;
+	u8 tx_stopped;
+	bool flashboot;
+};
+
+int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb);
+int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv);
+int qtnf_pcie_fw_boot_done(struct qtnf_bus *bus);
+void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv,
+			    struct qtnf_shm_ipc_region __iomem *ipc_tx_reg,
+			    struct qtnf_shm_ipc_region __iomem *ipc_rx_reg,
+			    const struct qtnf_shm_ipc_int *ipc_int);
+struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev);
+struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev);
+
+static inline void qtnf_non_posted_write(u32 val, void __iomem *basereg)
+{
+	writel(val, basereg);
+
+	/* flush posted write */
+	readl(basereg);
+}
+
+#endif /* _QTN_FMAC_PCIE_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c
new file mode 100644
index 0000000000..8c23a77d16
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c
@@ -0,0 +1,1199 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2018 Quantenna Communications */
+
+#include <linux/kernel.h>
+#include <linux/firmware.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/completion.h>
+#include <linux/crc32.h>
+#include <linux/spinlock.h>
+#include <linux/circ_buf.h>
+#include <linux/log2.h>
+
+#include "pcie_priv.h"
+#include "pearl_pcie_regs.h"
+#include "pearl_pcie_ipc.h"
+#include "qtn_hw_ids.h"
+#include "core.h"
+#include "bus.h"
+#include "shm_ipc.h"
+#include "debug.h"
+
+#define PEARL_TX_BD_SIZE_DEFAULT	32
+#define PEARL_RX_BD_SIZE_DEFAULT	256
+
+struct qtnf_pearl_bda {
+	__le16 bda_len;
+	__le16 bda_version;
+	__le32 bda_pci_endian;
+	__le32 bda_ep_state;
+	__le32 bda_rc_state;
+	__le32 bda_dma_mask;
+	__le32 bda_msi_addr;
+	__le32 bda_flashsz;
+	u8 bda_boardname[PCIE_BDA_NAMELEN];
+	__le32 bda_rc_msi_enabled;
+	u8 bda_hhbm_list[PCIE_HHBM_MAX_SIZE];
+	__le32 bda_dsbw_start_index;
+	__le32 bda_dsbw_end_index;
+	__le32 bda_dsbw_total_bytes;
+	__le32 bda_rc_tx_bd_base;
+	__le32 bda_rc_tx_bd_num;
+	u8 bda_pcie_mac[QTN_ENET_ADDR_LENGTH];
+	struct qtnf_shm_ipc_region bda_shm_reg1 __aligned(4096); /* host TX */
+	struct qtnf_shm_ipc_region bda_shm_reg2 __aligned(4096); /* host RX */
+} __packed;
+
+struct qtnf_pearl_tx_bd {
+	__le32 addr;
+	__le32 addr_h;
+	__le32 info;
+	__le32 info_h;
+} __packed;
+
+struct qtnf_pearl_rx_bd {
+	__le32 addr;
+	__le32 addr_h;
+	__le32 info;
+	__le32 info_h;
+	__le32 next_ptr;
+	__le32 next_ptr_h;
+} __packed;
+
+struct qtnf_pearl_fw_hdr {
+	u8 boardflg[8];
+	__le32 fwsize;
+	__le32 seqnum;
+	__le32 type;
+	__le32 pktlen;
+	__le32 crc;
+} __packed;
+
+struct qtnf_pcie_pearl_state {
+	struct qtnf_pcie_bus_priv base;
+
+	/* lock for irq configuration changes */
+	spinlock_t irq_lock;
+
+	struct qtnf_pearl_bda __iomem *bda;
+	void __iomem *pcie_reg_base;
+
+	struct qtnf_pearl_tx_bd *tx_bd_vbase;
+	dma_addr_t tx_bd_pbase;
+
+	struct qtnf_pearl_rx_bd *rx_bd_vbase;
+	dma_addr_t rx_bd_pbase;
+
+	dma_addr_t bd_table_paddr;
+	void *bd_table_vaddr;
+	u32 bd_table_len;
+	u32 pcie_irq_mask;
+	u32 pcie_irq_rx_count;
+	u32 pcie_irq_tx_count;
+	u32 pcie_irq_uf_count;
+};
+
+static inline void qtnf_init_hdp_irqs(struct qtnf_pcie_pearl_state *ps)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->irq_lock, flags);
+	ps->pcie_irq_mask = (PCIE_HDP_INT_RX_BITS | PCIE_HDP_INT_TX_BITS);
+	spin_unlock_irqrestore(&ps->irq_lock, flags);
+}
+
+static inline void qtnf_enable_hdp_irqs(struct qtnf_pcie_pearl_state *ps)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->irq_lock, flags);
+	writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base));
+	spin_unlock_irqrestore(&ps->irq_lock, flags);
+}
+
+static inline void qtnf_disable_hdp_irqs(struct qtnf_pcie_pearl_state *ps)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->irq_lock, flags);
+	writel(0x0, PCIE_HDP_INT_EN(ps->pcie_reg_base));
+	spin_unlock_irqrestore(&ps->irq_lock, flags);
+}
+
+static inline void qtnf_en_rxdone_irq(struct qtnf_pcie_pearl_state *ps)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->irq_lock, flags);
+	ps->pcie_irq_mask |= PCIE_HDP_INT_RX_BITS;
+	writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base));
+	spin_unlock_irqrestore(&ps->irq_lock, flags);
+}
+
+static inline void qtnf_dis_rxdone_irq(struct qtnf_pcie_pearl_state *ps)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->irq_lock, flags);
+	ps->pcie_irq_mask &= ~PCIE_HDP_INT_RX_BITS;
+	writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base));
+	spin_unlock_irqrestore(&ps->irq_lock, flags);
+}
+
+static inline void qtnf_en_txdone_irq(struct qtnf_pcie_pearl_state *ps)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->irq_lock, flags);
+	ps->pcie_irq_mask |= PCIE_HDP_INT_TX_BITS;
+	writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base));
+	spin_unlock_irqrestore(&ps->irq_lock, flags);
+}
+
+static inline void qtnf_dis_txdone_irq(struct qtnf_pcie_pearl_state *ps)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ps->irq_lock, flags);
+	ps->pcie_irq_mask &= ~PCIE_HDP_INT_TX_BITS;
+	writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base));
+	spin_unlock_irqrestore(&ps->irq_lock, flags);
+}
+
+static void qtnf_deassert_intx(struct qtnf_pcie_pearl_state *ps)
+{
+	void __iomem *reg = ps->base.sysctl_bar + PEARL_PCIE_CFG0_OFFSET;
+	u32 cfg;
+
+	cfg = readl(reg);
+	cfg &= ~PEARL_ASSERT_INTX;
+	qtnf_non_posted_write(cfg, reg);
+}
+
+static void qtnf_pearl_reset_ep(struct qtnf_pcie_pearl_state *ps)
+{
+	const u32 data = QTN_PEARL_IPC_IRQ_WORD(QTN_PEARL_LHOST_EP_RESET);
+	void __iomem *reg = ps->base.sysctl_bar +
+			    QTN_PEARL_SYSCTL_LHOST_IRQ_OFFSET;
+
+	qtnf_non_posted_write(data, reg);
+	msleep(QTN_EP_RESET_WAIT_MS);
+	pci_restore_state(ps->base.pdev);
+}
+
+static void qtnf_pcie_pearl_ipc_gen_ep_int(void *arg)
+{
+	const struct qtnf_pcie_pearl_state *ps = arg;
+	const u32 data = QTN_PEARL_IPC_IRQ_WORD(QTN_PEARL_LHOST_IPC_IRQ);
+	void __iomem *reg = ps->base.sysctl_bar +
+			    QTN_PEARL_SYSCTL_LHOST_IRQ_OFFSET;
+
+	qtnf_non_posted_write(data, reg);
+}
+
+static int qtnf_is_state(__le32 __iomem *reg, u32 state)
+{
+	u32 s = readl(reg);
+
+	return s & state;
+}
+
+static void qtnf_set_state(__le32 __iomem *reg, u32 state)
+{
+	u32 s = readl(reg);
+
+	qtnf_non_posted_write(state | s, reg);
+}
+
+static void qtnf_clear_state(__le32 __iomem *reg, u32 state)
+{
+	u32 s = readl(reg);
+
+	qtnf_non_posted_write(s & ~state, reg);
+}
+
+static int qtnf_poll_state(__le32 __iomem *reg, u32 state, u32 delay_in_ms)
+{
+	u32 timeout = 0;
+
+	while ((qtnf_is_state(reg, state) == 0)) {
+		usleep_range(1000, 1200);
+		if (++timeout > delay_in_ms)
+			return -1;
+	}
+
+	return 0;
+}
+
+static int pearl_alloc_bd_table(struct qtnf_pcie_pearl_state *ps)
+{
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+	dma_addr_t paddr;
+	void *vaddr;
+	int len;
+
+	len = priv->tx_bd_num * sizeof(struct qtnf_pearl_tx_bd) +
+		priv->rx_bd_num * sizeof(struct qtnf_pearl_rx_bd);
+
+	vaddr = dmam_alloc_coherent(&priv->pdev->dev, len, &paddr, GFP_KERNEL);
+	if (!vaddr)
+		return -ENOMEM;
+
+	/* tx bd */
+
+	ps->bd_table_vaddr = vaddr;
+	ps->bd_table_paddr = paddr;
+	ps->bd_table_len = len;
+
+	ps->tx_bd_vbase = vaddr;
+	ps->tx_bd_pbase = paddr;
+
+	pr_debug("TX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr);
+
+	priv->tx_bd_r_index = 0;
+	priv->tx_bd_w_index = 0;
+
+	/* rx bd */
+
+	vaddr = ((struct qtnf_pearl_tx_bd *)vaddr) + priv->tx_bd_num;
+	paddr += priv->tx_bd_num * sizeof(struct qtnf_pearl_tx_bd);
+
+	ps->rx_bd_vbase = vaddr;
+	ps->rx_bd_pbase = paddr;
+
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+	writel(QTN_HOST_HI32(paddr),
+	       PCIE_HDP_TX_HOST_Q_BASE_H(ps->pcie_reg_base));
+#endif
+	writel(QTN_HOST_LO32(paddr),
+	       PCIE_HDP_TX_HOST_Q_BASE_L(ps->pcie_reg_base));
+	writel(priv->rx_bd_num | (sizeof(struct qtnf_pearl_rx_bd)) << 16,
+	       PCIE_HDP_TX_HOST_Q_SZ_CTRL(ps->pcie_reg_base));
+
+	pr_debug("RX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr);
+
+	return 0;
+}
+
+static int pearl_skb2rbd_attach(struct qtnf_pcie_pearl_state *ps, u16 index)
+{
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+	struct qtnf_pearl_rx_bd *rxbd;
+	struct sk_buff *skb;
+	dma_addr_t paddr;
+
+	skb = netdev_alloc_skb_ip_align(NULL, SKB_BUF_SIZE);
+	if (!skb) {
+		priv->rx_skb[index] = NULL;
+		return -ENOMEM;
+	}
+
+	priv->rx_skb[index] = skb;
+	rxbd = &ps->rx_bd_vbase[index];
+
+	paddr = dma_map_single(&priv->pdev->dev, skb->data, SKB_BUF_SIZE,
+			       DMA_FROM_DEVICE);
+	if (dma_mapping_error(&priv->pdev->dev, paddr)) {
+		pr_err("skb DMA mapping error: %pad\n", &paddr);
+		return -ENOMEM;
+	}
+
+	/* keep rx skb paddrs in rx buffer descriptors for cleanup purposes */
+	rxbd->addr = cpu_to_le32(QTN_HOST_LO32(paddr));
+	rxbd->addr_h = cpu_to_le32(QTN_HOST_HI32(paddr));
+	rxbd->info = 0x0;
+
+	priv->rx_bd_w_index = index;
+
+	/* sync up all descriptor updates */
+	wmb();
+
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+	writel(QTN_HOST_HI32(paddr),
+	       PCIE_HDP_HHBM_BUF_PTR_H(ps->pcie_reg_base));
+#endif
+	writel(QTN_HOST_LO32(paddr),
+	       PCIE_HDP_HHBM_BUF_PTR(ps->pcie_reg_base));
+
+	writel(index, PCIE_HDP_TX_HOST_Q_WR_PTR(ps->pcie_reg_base));
+	return 0;
+}
+
+static int pearl_alloc_rx_buffers(struct qtnf_pcie_pearl_state *ps)
+{
+	u16 i;
+	int ret = 0;
+
+	memset(ps->rx_bd_vbase, 0x0,
+	       ps->base.rx_bd_num * sizeof(struct qtnf_pearl_rx_bd));
+
+	for (i = 0; i < ps->base.rx_bd_num; i++) {
+		ret = pearl_skb2rbd_attach(ps, i);
+		if (ret)
+			break;
+	}
+
+	return ret;
+}
+
+/* all rx/tx activity should have ceased before calling this function */
+static void qtnf_pearl_free_xfer_buffers(struct qtnf_pcie_pearl_state *ps)
+{
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+	struct qtnf_pearl_tx_bd *txbd;
+	struct qtnf_pearl_rx_bd *rxbd;
+	struct sk_buff *skb;
+	dma_addr_t paddr;
+	int i;
+
+	/* free rx buffers */
+	for (i = 0; i < priv->rx_bd_num; i++) {
+		if (priv->rx_skb && priv->rx_skb[i]) {
+			rxbd = &ps->rx_bd_vbase[i];
+			skb = priv->rx_skb[i];
+			paddr = QTN_HOST_ADDR(le32_to_cpu(rxbd->addr_h),
+					      le32_to_cpu(rxbd->addr));
+			dma_unmap_single(&priv->pdev->dev, paddr,
+					 SKB_BUF_SIZE, DMA_FROM_DEVICE);
+			dev_kfree_skb_any(skb);
+			priv->rx_skb[i] = NULL;
+		}
+	}
+
+	/* free tx buffers */
+	for (i = 0; i < priv->tx_bd_num; i++) {
+		if (priv->tx_skb && priv->tx_skb[i]) {
+			txbd = &ps->tx_bd_vbase[i];
+			skb = priv->tx_skb[i];
+			paddr = QTN_HOST_ADDR(le32_to_cpu(txbd->addr_h),
+					      le32_to_cpu(txbd->addr));
+			dma_unmap_single(&priv->pdev->dev, paddr, skb->len,
+					 DMA_TO_DEVICE);
+			dev_kfree_skb_any(skb);
+			priv->tx_skb[i] = NULL;
+		}
+	}
+}
+
+static int pearl_hhbm_init(struct qtnf_pcie_pearl_state *ps)
+{
+	u32 val;
+
+	val = readl(PCIE_HHBM_CONFIG(ps->pcie_reg_base));
+	val |= HHBM_CONFIG_SOFT_RESET;
+	writel(val, PCIE_HHBM_CONFIG(ps->pcie_reg_base));
+	usleep_range(50, 100);
+	val &= ~HHBM_CONFIG_SOFT_RESET;
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+	val |= HHBM_64BIT;
+#endif
+	writel(val, PCIE_HHBM_CONFIG(ps->pcie_reg_base));
+	writel(ps->base.rx_bd_num, PCIE_HHBM_Q_LIMIT_REG(ps->pcie_reg_base));
+
+	return 0;
+}
+
+static int qtnf_pcie_pearl_init_xfer(struct qtnf_pcie_pearl_state *ps,
+				     unsigned int tx_bd_size,
+				     unsigned int rx_bd_size)
+{
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+	int ret;
+	u32 val;
+
+	if (tx_bd_size == 0)
+		tx_bd_size = PEARL_TX_BD_SIZE_DEFAULT;
+
+	val = tx_bd_size * sizeof(struct qtnf_pearl_tx_bd);
+
+	if (!is_power_of_2(tx_bd_size) || val > PCIE_HHBM_MAX_SIZE) {
+		pr_warn("invalid tx_bd_size value %u, use default %u\n",
+			tx_bd_size, PEARL_TX_BD_SIZE_DEFAULT);
+		priv->tx_bd_num = PEARL_TX_BD_SIZE_DEFAULT;
+	} else {
+		priv->tx_bd_num = tx_bd_size;
+	}
+
+	if (rx_bd_size == 0)
+		rx_bd_size = PEARL_RX_BD_SIZE_DEFAULT;
+
+	val = rx_bd_size * sizeof(dma_addr_t);
+
+	if (!is_power_of_2(rx_bd_size) || val > PCIE_HHBM_MAX_SIZE) {
+		pr_warn("invalid rx_bd_size value %u, use default %u\n",
+			rx_bd_size, PEARL_RX_BD_SIZE_DEFAULT);
+		priv->rx_bd_num = PEARL_RX_BD_SIZE_DEFAULT;
+	} else {
+		priv->rx_bd_num = rx_bd_size;
+	}
+
+	priv->rx_bd_w_index = 0;
+	priv->rx_bd_r_index = 0;
+
+	ret = pearl_hhbm_init(ps);
+	if (ret) {
+		pr_err("failed to init h/w queues\n");
+		return ret;
+	}
+
+	ret = qtnf_pcie_alloc_skb_array(priv);
+	if (ret) {
+		pr_err("failed to allocate skb array\n");
+		return ret;
+	}
+
+	ret = pearl_alloc_bd_table(ps);
+	if (ret) {
+		pr_err("failed to allocate bd table\n");
+		return ret;
+	}
+
+	ret = pearl_alloc_rx_buffers(ps);
+	if (ret) {
+		pr_err("failed to allocate rx buffers\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+static void qtnf_pearl_data_tx_reclaim(struct qtnf_pcie_pearl_state *ps)
+{
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+	struct qtnf_pearl_tx_bd *txbd;
+	struct sk_buff *skb;
+	unsigned long flags;
+	dma_addr_t paddr;
+	u32 tx_done_index;
+	int count = 0;
+	int i;
+
+	spin_lock_irqsave(&priv->tx_reclaim_lock, flags);
+
+	tx_done_index = readl(PCIE_HDP_RX0DMA_CNT(ps->pcie_reg_base))
+			& (priv->tx_bd_num - 1);
+
+	i = priv->tx_bd_r_index;
+
+	while (CIRC_CNT(tx_done_index, i, priv->tx_bd_num)) {
+		skb = priv->tx_skb[i];
+		if (likely(skb)) {
+			txbd = &ps->tx_bd_vbase[i];
+			paddr = QTN_HOST_ADDR(le32_to_cpu(txbd->addr_h),
+					      le32_to_cpu(txbd->addr));
+			dma_unmap_single(&priv->pdev->dev, paddr, skb->len,
+					 DMA_TO_DEVICE);
+
+			if (skb->dev) {
+				dev_sw_netstats_tx_add(skb->dev, 1, skb->len);
+				if (unlikely(priv->tx_stopped)) {
+					qtnf_wake_all_queues(skb->dev);
+					priv->tx_stopped = 0;
+				}
+			}
+
+			dev_kfree_skb_any(skb);
+		}
+
+		priv->tx_skb[i] = NULL;
+		count++;
+
+		if (++i >= priv->tx_bd_num)
+			i = 0;
+	}
+
+	priv->tx_reclaim_done += count;
+	priv->tx_reclaim_req++;
+	priv->tx_bd_r_index = i;
+
+	spin_unlock_irqrestore(&priv->tx_reclaim_lock, flags);
+}
+
+static int qtnf_tx_queue_ready(struct qtnf_pcie_pearl_state *ps)
+{
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+
+	if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index,
+			priv->tx_bd_num)) {
+		qtnf_pearl_data_tx_reclaim(ps);
+
+		if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index,
+				priv->tx_bd_num)) {
+			pr_warn_ratelimited("reclaim full Tx queue\n");
+			priv->tx_full_count++;
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+static int qtnf_pcie_skb_send(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+	dma_addr_t txbd_paddr, skb_paddr;
+	struct qtnf_pearl_tx_bd *txbd;
+	unsigned long flags;
+	int len, i;
+	u32 info;
+	int ret = 0;
+
+	spin_lock_irqsave(&priv->tx_lock, flags);
+
+	if (!qtnf_tx_queue_ready(ps)) {
+		if (skb->dev) {
+			netif_tx_stop_all_queues(skb->dev);
+			priv->tx_stopped = 1;
+		}
+
+		spin_unlock_irqrestore(&priv->tx_lock, flags);
+		return NETDEV_TX_BUSY;
+	}
+
+	i = priv->tx_bd_w_index;
+	priv->tx_skb[i] = skb;
+	len = skb->len;
+
+	skb_paddr = dma_map_single(&priv->pdev->dev, skb->data, skb->len,
+				   DMA_TO_DEVICE);
+	if (dma_mapping_error(&priv->pdev->dev, skb_paddr)) {
+		pr_err("skb DMA mapping error: %pad\n", &skb_paddr);
+		ret = -ENOMEM;
+		goto tx_done;
+	}
+
+	txbd = &ps->tx_bd_vbase[i];
+	txbd->addr = cpu_to_le32(QTN_HOST_LO32(skb_paddr));
+	txbd->addr_h = cpu_to_le32(QTN_HOST_HI32(skb_paddr));
+
+	info = (len & QTN_PCIE_TX_DESC_LEN_MASK) << QTN_PCIE_TX_DESC_LEN_SHIFT;
+	txbd->info = cpu_to_le32(info);
+
+	/* sync up all descriptor updates before passing them to EP */
+	dma_wmb();
+
+	/* write new TX descriptor to PCIE_RX_FIFO on EP */
+	txbd_paddr = ps->tx_bd_pbase + i * sizeof(struct qtnf_pearl_tx_bd);
+
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+	writel(QTN_HOST_HI32(txbd_paddr),
+	       PCIE_HDP_HOST_WR_DESC0_H(ps->pcie_reg_base));
+#endif
+	writel(QTN_HOST_LO32(txbd_paddr),
+	       PCIE_HDP_HOST_WR_DESC0(ps->pcie_reg_base));
+
+	if (++i >= priv->tx_bd_num)
+		i = 0;
+
+	priv->tx_bd_w_index = i;
+
+tx_done:
+	if (ret) {
+		pr_err_ratelimited("drop skb\n");
+		if (skb->dev)
+			skb->dev->stats.tx_dropped++;
+		dev_kfree_skb_any(skb);
+	}
+
+	priv->tx_done_count++;
+	spin_unlock_irqrestore(&priv->tx_lock, flags);
+
+	qtnf_pearl_data_tx_reclaim(ps);
+
+	return NETDEV_TX_OK;
+}
+
+static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb,
+			     unsigned int macid, unsigned int vifid)
+{
+	return qtnf_pcie_skb_send(bus, skb);
+}
+
+static int qtnf_pcie_data_tx_meta(struct qtnf_bus *bus, struct sk_buff *skb,
+				  unsigned int macid, unsigned int vifid)
+{
+	struct qtnf_frame_meta_info *meta;
+	int tail_need = sizeof(*meta) - skb_tailroom(skb);
+	int ret;
+
+	if (tail_need > 0 && pskb_expand_head(skb, 0, tail_need, GFP_ATOMIC)) {
+		skb->dev->stats.tx_dropped++;
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	meta = skb_put(skb, sizeof(*meta));
+	meta->magic_s = HBM_FRAME_META_MAGIC_PATTERN_S;
+	meta->magic_e = HBM_FRAME_META_MAGIC_PATTERN_E;
+	meta->macid = macid;
+	meta->ifidx = vifid;
+
+	ret = qtnf_pcie_skb_send(bus, skb);
+	if (unlikely(ret == NETDEV_TX_BUSY))
+		__skb_trim(skb, skb->len - sizeof(*meta));
+
+	return ret;
+}
+
+static irqreturn_t qtnf_pcie_pearl_interrupt(int irq, void *data)
+{
+	struct qtnf_bus *bus = (struct qtnf_bus *)data;
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+	u32 status;
+
+	priv->pcie_irq_count++;
+	status = readl(PCIE_HDP_INT_STATUS(ps->pcie_reg_base));
+
+	qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in);
+	qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_out);
+
+	if (!(status & ps->pcie_irq_mask))
+		goto irq_done;
+
+	if (status & PCIE_HDP_INT_RX_BITS)
+		ps->pcie_irq_rx_count++;
+
+	if (status & PCIE_HDP_INT_TX_BITS)
+		ps->pcie_irq_tx_count++;
+
+	if (status & PCIE_HDP_INT_HHBM_UF)
+		ps->pcie_irq_uf_count++;
+
+	if (status & PCIE_HDP_INT_RX_BITS) {
+		qtnf_dis_rxdone_irq(ps);
+		napi_schedule(&bus->mux_napi);
+	}
+
+	if (status & PCIE_HDP_INT_TX_BITS) {
+		qtnf_dis_txdone_irq(ps);
+		tasklet_hi_schedule(&priv->reclaim_tq);
+	}
+
+irq_done:
+	/* H/W workaround: clean all bits, not only enabled */
+	qtnf_non_posted_write(~0U, PCIE_HDP_INT_STATUS(ps->pcie_reg_base));
+
+	if (!priv->msi_enabled)
+		qtnf_deassert_intx(ps);
+
+	return IRQ_HANDLED;
+}
+
+static int qtnf_rx_data_ready(struct qtnf_pcie_pearl_state *ps)
+{
+	u16 index = ps->base.rx_bd_r_index;
+	struct qtnf_pearl_rx_bd *rxbd;
+	u32 descw;
+
+	rxbd = &ps->rx_bd_vbase[index];
+	descw = le32_to_cpu(rxbd->info);
+
+	if (descw & QTN_TXDONE_MASK)
+		return 1;
+
+	return 0;
+}
+
+static int qtnf_pcie_pearl_rx_poll(struct napi_struct *napi, int budget)
+{
+	struct qtnf_bus *bus = container_of(napi, struct qtnf_bus, mux_napi);
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+	struct net_device *ndev = NULL;
+	struct sk_buff *skb = NULL;
+	int processed = 0;
+	struct qtnf_pearl_rx_bd *rxbd;
+	dma_addr_t skb_paddr;
+	int consume;
+	u32 descw;
+	u32 psize;
+	u16 r_idx;
+	u16 w_idx;
+	int ret;
+
+	while (processed < budget) {
+		if (!qtnf_rx_data_ready(ps))
+			goto rx_out;
+
+		r_idx = priv->rx_bd_r_index;
+		rxbd = &ps->rx_bd_vbase[r_idx];
+		descw = le32_to_cpu(rxbd->info);
+
+		skb = priv->rx_skb[r_idx];
+		psize = QTN_GET_LEN(descw);
+		consume = 1;
+
+		if (!(descw & QTN_TXDONE_MASK)) {
+			pr_warn("skip invalid rxbd[%d]\n", r_idx);
+			consume = 0;
+		}
+
+		if (!skb) {
+			pr_warn("skip missing rx_skb[%d]\n", r_idx);
+			consume = 0;
+		}
+
+		if (skb && (skb_tailroom(skb) <  psize)) {
+			pr_err("skip packet with invalid length: %u > %u\n",
+			       psize, skb_tailroom(skb));
+			consume = 0;
+		}
+
+		if (skb) {
+			skb_paddr = QTN_HOST_ADDR(le32_to_cpu(rxbd->addr_h),
+						  le32_to_cpu(rxbd->addr));
+			dma_unmap_single(&priv->pdev->dev, skb_paddr,
+					 SKB_BUF_SIZE, DMA_FROM_DEVICE);
+		}
+
+		if (consume) {
+			skb_put(skb, psize);
+			ndev = qtnf_classify_skb(bus, skb);
+			if (likely(ndev)) {
+				dev_sw_netstats_rx_add(ndev, skb->len);
+				skb->protocol = eth_type_trans(skb, ndev);
+				napi_gro_receive(napi, skb);
+			} else {
+				pr_debug("drop untagged skb\n");
+				bus->mux_dev.stats.rx_dropped++;
+				dev_kfree_skb_any(skb);
+			}
+		} else {
+			if (skb) {
+				bus->mux_dev.stats.rx_dropped++;
+				dev_kfree_skb_any(skb);
+			}
+		}
+
+		priv->rx_skb[r_idx] = NULL;
+		if (++r_idx >= priv->rx_bd_num)
+			r_idx = 0;
+
+		priv->rx_bd_r_index = r_idx;
+
+		/* repalce processed buffer by a new one */
+		w_idx = priv->rx_bd_w_index;
+		while (CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index,
+				  priv->rx_bd_num) > 0) {
+			if (++w_idx >= priv->rx_bd_num)
+				w_idx = 0;
+
+			ret = pearl_skb2rbd_attach(ps, w_idx);
+			if (ret) {
+				pr_err("failed to allocate new rx_skb[%d]\n",
+				       w_idx);
+				break;
+			}
+		}
+
+		processed++;
+	}
+
+rx_out:
+	if (processed < budget) {
+		napi_complete(napi);
+		qtnf_en_rxdone_irq(ps);
+	}
+
+	return processed;
+}
+
+static void
+qtnf_pcie_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev)
+{
+	struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus);
+
+	tasklet_hi_schedule(&ps->base.reclaim_tq);
+}
+
+static void qtnf_pcie_data_rx_start(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus);
+
+	qtnf_enable_hdp_irqs(ps);
+	napi_enable(&bus->mux_napi);
+}
+
+static void qtnf_pcie_data_rx_stop(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus);
+
+	napi_disable(&bus->mux_napi);
+	qtnf_disable_hdp_irqs(ps);
+}
+
+static void qtnf_pearl_tx_use_meta_info_set(struct qtnf_bus *bus, bool use_meta)
+{
+	if (use_meta)
+		bus->bus_ops->data_tx = qtnf_pcie_data_tx_meta;
+	else
+		bus->bus_ops->data_tx = qtnf_pcie_data_tx;
+}
+
+static struct qtnf_bus_ops qtnf_pcie_pearl_bus_ops = {
+	/* control path methods */
+	.control_tx	= qtnf_pcie_control_tx,
+
+	/* data path methods */
+	.data_tx		= qtnf_pcie_data_tx,
+	.data_tx_timeout	= qtnf_pcie_data_tx_timeout,
+	.data_tx_use_meta_set	= qtnf_pearl_tx_use_meta_info_set,
+	.data_rx_start		= qtnf_pcie_data_rx_start,
+	.data_rx_stop		= qtnf_pcie_data_rx_stop,
+};
+
+static int qtnf_dbg_irq_stats(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
+	u32 reg = readl(PCIE_HDP_INT_EN(ps->pcie_reg_base));
+	u32 status;
+
+	seq_printf(s, "pcie_irq_count(%u)\n", ps->base.pcie_irq_count);
+	seq_printf(s, "pcie_irq_tx_count(%u)\n", ps->pcie_irq_tx_count);
+	status = reg &  PCIE_HDP_INT_TX_BITS;
+	seq_printf(s, "pcie_irq_tx_status(%s)\n",
+		   (status == PCIE_HDP_INT_TX_BITS) ? "EN" : "DIS");
+	seq_printf(s, "pcie_irq_rx_count(%u)\n", ps->pcie_irq_rx_count);
+	status = reg &  PCIE_HDP_INT_RX_BITS;
+	seq_printf(s, "pcie_irq_rx_status(%s)\n",
+		   (status == PCIE_HDP_INT_RX_BITS) ? "EN" : "DIS");
+	seq_printf(s, "pcie_irq_uf_count(%u)\n", ps->pcie_irq_uf_count);
+	status = reg &  PCIE_HDP_INT_HHBM_UF;
+	seq_printf(s, "pcie_irq_hhbm_uf_status(%s)\n",
+		   (status == PCIE_HDP_INT_HHBM_UF) ? "EN" : "DIS");
+
+	return 0;
+}
+
+static int qtnf_dbg_hdp_stats(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ps->base;
+
+	seq_printf(s, "tx_full_count(%u)\n", priv->tx_full_count);
+	seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count);
+	seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done);
+	seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req);
+
+	seq_printf(s, "tx_bd_r_index(%u)\n", priv->tx_bd_r_index);
+	seq_printf(s, "tx_bd_p_index(%u)\n",
+		   readl(PCIE_HDP_RX0DMA_CNT(ps->pcie_reg_base))
+			& (priv->tx_bd_num - 1));
+	seq_printf(s, "tx_bd_w_index(%u)\n", priv->tx_bd_w_index);
+	seq_printf(s, "tx queue len(%u)\n",
+		   CIRC_CNT(priv->tx_bd_w_index, priv->tx_bd_r_index,
+			    priv->tx_bd_num));
+
+	seq_printf(s, "rx_bd_r_index(%u)\n", priv->rx_bd_r_index);
+	seq_printf(s, "rx_bd_p_index(%u)\n",
+		   readl(PCIE_HDP_TX0DMA_CNT(ps->pcie_reg_base))
+			& (priv->rx_bd_num - 1));
+	seq_printf(s, "rx_bd_w_index(%u)\n", priv->rx_bd_w_index);
+	seq_printf(s, "rx alloc queue len(%u)\n",
+		   CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index,
+			      priv->rx_bd_num));
+
+	return 0;
+}
+
+static int qtnf_ep_fw_send(struct pci_dev *pdev, uint32_t size,
+			   int blk, const u8 *pblk, const u8 *fw)
+{
+	struct qtnf_bus *bus = pci_get_drvdata(pdev);
+
+	struct qtnf_pearl_fw_hdr *hdr;
+	u8 *pdata;
+
+	int hds = sizeof(*hdr);
+	struct sk_buff *skb = NULL;
+	int len = 0;
+	int ret;
+
+	skb = __dev_alloc_skb(QTN_PCIE_FW_BUFSZ, GFP_KERNEL);
+	if (!skb)
+		return -ENOMEM;
+
+	skb->len = QTN_PCIE_FW_BUFSZ;
+	skb->dev = NULL;
+
+	hdr = (struct qtnf_pearl_fw_hdr *)skb->data;
+	memcpy(hdr->boardflg, QTN_PCIE_BOARDFLG, strlen(QTN_PCIE_BOARDFLG));
+	hdr->fwsize = cpu_to_le32(size);
+	hdr->seqnum = cpu_to_le32(blk);
+
+	if (blk)
+		hdr->type = cpu_to_le32(QTN_FW_DSUB);
+	else
+		hdr->type = cpu_to_le32(QTN_FW_DBEGIN);
+
+	pdata = skb->data + hds;
+
+	len = QTN_PCIE_FW_BUFSZ - hds;
+	if (pblk >= (fw + size - len)) {
+		len = fw + size - pblk;
+		hdr->type = cpu_to_le32(QTN_FW_DEND);
+	}
+
+	hdr->pktlen = cpu_to_le32(len);
+	memcpy(pdata, pblk, len);
+	hdr->crc = cpu_to_le32(~crc32(0, pdata, len));
+
+	ret = qtnf_pcie_skb_send(bus, skb);
+
+	return (ret == NETDEV_TX_OK) ? len : 0;
+}
+
+static int
+qtnf_ep_fw_load(struct qtnf_pcie_pearl_state *ps, const u8 *fw, u32 fw_size)
+{
+	int blk_size = QTN_PCIE_FW_BUFSZ - sizeof(struct qtnf_pearl_fw_hdr);
+	int blk_count = fw_size / blk_size + ((fw_size % blk_size) ? 1 : 0);
+	const u8 *pblk = fw;
+	int threshold = 0;
+	int blk = 0;
+	int len;
+
+	pr_debug("FW upload started: fw_addr=0x%p size=%d\n", fw, fw_size);
+
+	while (blk < blk_count) {
+		if (++threshold > 10000) {
+			pr_err("FW upload failed: too many retries\n");
+			return -ETIMEDOUT;
+		}
+
+		len = qtnf_ep_fw_send(ps->base.pdev, fw_size, blk, pblk, fw);
+		if (len <= 0)
+			continue;
+
+		if (!((blk + 1) & QTN_PCIE_FW_DLMASK) ||
+		    (blk == (blk_count - 1))) {
+			qtnf_set_state(&ps->bda->bda_rc_state,
+				       QTN_RC_FW_SYNC);
+			if (qtnf_poll_state(&ps->bda->bda_ep_state,
+					    QTN_EP_FW_SYNC,
+					    QTN_FW_DL_TIMEOUT_MS)) {
+				pr_err("FW upload failed: SYNC timed out\n");
+				return -ETIMEDOUT;
+			}
+
+			qtnf_clear_state(&ps->bda->bda_ep_state,
+					 QTN_EP_FW_SYNC);
+
+			if (qtnf_is_state(&ps->bda->bda_ep_state,
+					  QTN_EP_FW_RETRY)) {
+				if (blk == (blk_count - 1)) {
+					int last_round =
+						blk_count & QTN_PCIE_FW_DLMASK;
+					blk -= last_round;
+					pblk -= ((last_round - 1) *
+						blk_size + len);
+				} else {
+					blk -= QTN_PCIE_FW_DLMASK;
+					pblk -= QTN_PCIE_FW_DLMASK * blk_size;
+				}
+
+				qtnf_clear_state(&ps->bda->bda_ep_state,
+						 QTN_EP_FW_RETRY);
+
+				pr_warn("FW upload retry: block #%d\n", blk);
+				continue;
+			}
+
+			qtnf_pearl_data_tx_reclaim(ps);
+		}
+
+		pblk += len;
+		blk++;
+	}
+
+	pr_debug("FW upload completed: totally sent %d blocks\n", blk);
+	return 0;
+}
+
+static void qtnf_pearl_fw_work_handler(struct work_struct *work)
+{
+	struct qtnf_bus *bus = container_of(work, struct qtnf_bus, fw_work);
+	struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus);
+	u32 state = QTN_RC_FW_LOADRDY | QTN_RC_FW_QLINK;
+	const char *fwname = QTN_PCI_PEARL_FW_NAME;
+	struct pci_dev *pdev = ps->base.pdev;
+	const struct firmware *fw;
+	int ret;
+
+	if (ps->base.flashboot) {
+		state |= QTN_RC_FW_FLASHBOOT;
+	} else {
+		ret = request_firmware(&fw, fwname, &pdev->dev);
+		if (ret < 0) {
+			pr_err("failed to get firmware %s\n", fwname);
+			goto fw_load_exit;
+		}
+	}
+
+	qtnf_set_state(&ps->bda->bda_rc_state, state);
+
+	if (qtnf_poll_state(&ps->bda->bda_ep_state, QTN_EP_FW_LOADRDY,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("card is not ready\n");
+
+		if (!ps->base.flashboot)
+			release_firmware(fw);
+
+		goto fw_load_exit;
+	}
+
+	qtnf_clear_state(&ps->bda->bda_ep_state, QTN_EP_FW_LOADRDY);
+
+	if (ps->base.flashboot) {
+		pr_info("booting firmware from flash\n");
+
+	} else {
+		pr_info("starting firmware upload: %s\n", fwname);
+
+		ret = qtnf_ep_fw_load(ps, fw->data, fw->size);
+		release_firmware(fw);
+		if (ret) {
+			pr_err("firmware upload error\n");
+			goto fw_load_exit;
+		}
+	}
+
+	if (qtnf_poll_state(&ps->bda->bda_ep_state, QTN_EP_FW_DONE,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("firmware bringup timed out\n");
+		goto fw_load_exit;
+	}
+
+	if (qtnf_poll_state(&ps->bda->bda_ep_state,
+			    QTN_EP_FW_QLINK_DONE, QTN_FW_QLINK_TIMEOUT_MS)) {
+		pr_err("firmware runtime failure\n");
+		goto fw_load_exit;
+	}
+
+	pr_info("firmware is up and running\n");
+
+	ret = qtnf_pcie_fw_boot_done(bus);
+	if (ret)
+		goto fw_load_exit;
+
+	qtnf_debugfs_add_entry(bus, "hdp_stats", qtnf_dbg_hdp_stats);
+	qtnf_debugfs_add_entry(bus, "irq_stats", qtnf_dbg_irq_stats);
+
+fw_load_exit:
+	put_device(&pdev->dev);
+}
+
+static void qtnf_pearl_reclaim_tasklet_fn(struct tasklet_struct *t)
+{
+	struct qtnf_pcie_pearl_state *ps = from_tasklet(ps, t, base.reclaim_tq);
+
+	qtnf_pearl_data_tx_reclaim(ps);
+	qtnf_en_txdone_irq(ps);
+}
+
+static u64 qtnf_pearl_dma_mask_get(void)
+{
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+	return DMA_BIT_MASK(64);
+#else
+	return DMA_BIT_MASK(32);
+#endif
+}
+
+static int qtnf_pcie_pearl_probe(struct qtnf_bus *bus, unsigned int tx_bd_size,
+				 unsigned int rx_bd_size)
+{
+	struct qtnf_shm_ipc_int ipc_int;
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
+	struct pci_dev *pdev = ps->base.pdev;
+	int ret;
+
+	bus->bus_ops = &qtnf_pcie_pearl_bus_ops;
+	spin_lock_init(&ps->irq_lock);
+	INIT_WORK(&bus->fw_work, qtnf_pearl_fw_work_handler);
+
+	ps->pcie_reg_base = ps->base.dmareg_bar;
+	ps->bda = ps->base.epmem_bar;
+	writel(ps->base.msi_enabled, &ps->bda->bda_rc_msi_enabled);
+
+	ret = qtnf_pcie_pearl_init_xfer(ps, tx_bd_size, rx_bd_size);
+	if (ret) {
+		pr_err("PCIE xfer init failed\n");
+		return ret;
+	}
+
+	/* init default irq settings */
+	qtnf_init_hdp_irqs(ps);
+
+	/* start with disabled irqs */
+	qtnf_disable_hdp_irqs(ps);
+
+	ret = devm_request_irq(&pdev->dev, pdev->irq,
+			       &qtnf_pcie_pearl_interrupt, 0,
+			       "qtnf_pearl_irq", (void *)bus);
+	if (ret) {
+		pr_err("failed to request pcie irq %d\n", pdev->irq);
+		qtnf_pearl_free_xfer_buffers(ps);
+		return ret;
+	}
+
+	tasklet_setup(&ps->base.reclaim_tq, qtnf_pearl_reclaim_tasklet_fn);
+	netif_napi_add_weight(&bus->mux_dev, &bus->mux_napi,
+			      qtnf_pcie_pearl_rx_poll, 10);
+
+	ipc_int.fn = qtnf_pcie_pearl_ipc_gen_ep_int;
+	ipc_int.arg = ps;
+	qtnf_pcie_init_shm_ipc(&ps->base, &ps->bda->bda_shm_reg1,
+			       &ps->bda->bda_shm_reg2, &ipc_int);
+
+	return 0;
+}
+
+static void qtnf_pcie_pearl_remove(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
+
+	qtnf_pearl_reset_ep(ps);
+	qtnf_pearl_free_xfer_buffers(ps);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int qtnf_pcie_pearl_suspend(struct qtnf_bus *bus)
+{
+	return -EOPNOTSUPP;
+}
+
+static int qtnf_pcie_pearl_resume(struct qtnf_bus *bus)
+{
+	return 0;
+}
+#endif
+
+struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev)
+{
+	struct qtnf_bus *bus;
+	struct qtnf_pcie_pearl_state *ps;
+
+	bus = devm_kzalloc(&pdev->dev, sizeof(*bus) + sizeof(*ps), GFP_KERNEL);
+	if (!bus)
+		return NULL;
+
+	ps = get_bus_priv(bus);
+	ps->base.probe_cb = qtnf_pcie_pearl_probe;
+	ps->base.remove_cb = qtnf_pcie_pearl_remove;
+	ps->base.dma_mask_get_cb = qtnf_pearl_dma_mask_get;
+#ifdef CONFIG_PM_SLEEP
+	ps->base.resume_cb = qtnf_pcie_pearl_resume;
+	ps->base.suspend_cb = qtnf_pcie_pearl_suspend;
+#endif
+
+	return bus;
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_ipc.h
new file mode 100644
index 0000000000..634480fe6a
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_ipc.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications */
+
+#ifndef _QTN_FMAC_PCIE_IPC_H_
+#define _QTN_FMAC_PCIE_IPC_H_
+
+#include <linux/types.h>
+
+#include "shm_ipc_defs.h"
+
+/* bitmap for EP status and flags: updated by EP, read by RC */
+#define QTN_EP_HAS_UBOOT	BIT(0)
+#define QTN_EP_HAS_FIRMWARE	BIT(1)
+#define QTN_EP_REQ_UBOOT	BIT(2)
+#define QTN_EP_REQ_FIRMWARE	BIT(3)
+#define QTN_EP_ERROR_UBOOT	BIT(4)
+#define QTN_EP_ERROR_FIRMWARE	BIT(5)
+
+#define QTN_EP_FW_LOADRDY	BIT(8)
+#define QTN_EP_FW_SYNC		BIT(9)
+#define QTN_EP_FW_RETRY		BIT(10)
+#define QTN_EP_FW_QLINK_DONE	BIT(15)
+#define QTN_EP_FW_DONE		BIT(16)
+
+/* bitmap for RC status and flags: updated by RC, read by EP */
+#define QTN_RC_PCIE_LINK	BIT(0)
+#define QTN_RC_NET_LINK		BIT(1)
+#define QTN_RC_FW_FLASHBOOT	BIT(5)
+#define QTN_RC_FW_QLINK		BIT(7)
+#define QTN_RC_FW_LOADRDY	BIT(8)
+#define QTN_RC_FW_SYNC		BIT(9)
+
+#define PCIE_HDP_INT_RX_BITS (0		\
+	| PCIE_HDP_INT_EP_TXDMA		\
+	| PCIE_HDP_INT_EP_TXEMPTY	\
+	| PCIE_HDP_INT_HHBM_UF		\
+	)
+
+#define PCIE_HDP_INT_TX_BITS (0		\
+	| PCIE_HDP_INT_EP_RXDMA		\
+	)
+
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+#define QTN_HOST_HI32(a)	((u32)(((u64)a) >> 32))
+#define QTN_HOST_LO32(a)	((u32)(((u64)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l)	((((u64)h) << 32) | ((u64)l))
+#else
+#define QTN_HOST_HI32(a)	0
+#define QTN_HOST_LO32(a)	((u32)(((u32)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l)	((u32)l)
+#endif
+
+#define QTN_PCIE_BDA_VERSION		0x1002
+
+#define PCIE_BDA_NAMELEN		32
+#define PCIE_HHBM_MAX_SIZE		2048
+
+#define QTN_PCIE_BOARDFLG	"PCIEQTN"
+#define QTN_PCIE_FW_DLMASK	0xF
+#define QTN_PCIE_FW_BUFSZ	2048
+
+#define QTN_ENET_ADDR_LENGTH	6
+
+#define QTN_TXDONE_MASK		((u32)0x80000000)
+#define QTN_GET_LEN(x)		((x) & 0xFFFF)
+
+#define QTN_PCIE_TX_DESC_LEN_MASK	0xFFFF
+#define QTN_PCIE_TX_DESC_LEN_SHIFT	0
+#define QTN_PCIE_TX_DESC_PORT_MASK	0xF
+#define QTN_PCIE_TX_DESC_PORT_SHIFT	16
+#define QTN_PCIE_TX_DESC_TQE_BIT	BIT(24)
+
+#define QTN_EP_LHOST_TQE_PORT	4
+
+enum qtnf_fw_loadtype {
+	QTN_FW_DBEGIN,
+	QTN_FW_DSUB,
+	QTN_FW_DEND,
+	QTN_FW_CTRL
+};
+
+#endif /* _QTN_FMAC_PCIE_IPC_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_regs.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_regs.h
new file mode 100644
index 0000000000..6e9a5c61d4
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_regs.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015 Quantenna Communications */
+
+#ifndef __PEARL_PCIE_H
+#define __PEARL_PCIE_H
+
+/* Pearl PCIe HDP registers */
+#define PCIE_HDP_CTRL(base)			((base) + 0x2c00)
+#define PCIE_HDP_AXI_CTRL(base)			((base) + 0x2c04)
+#define PCIE_HDP_HOST_WR_DESC0(base)		((base) + 0x2c10)
+#define PCIE_HDP_HOST_WR_DESC0_H(base)		((base) + 0x2c14)
+#define PCIE_HDP_HOST_WR_DESC1(base)		((base) + 0x2c18)
+#define PCIE_HDP_HOST_WR_DESC1_H(base)		((base) + 0x2c1c)
+#define PCIE_HDP_HOST_WR_DESC2(base)		((base) + 0x2c20)
+#define PCIE_HDP_HOST_WR_DESC2_H(base)		((base) + 0x2c24)
+#define PCIE_HDP_HOST_WR_DESC3(base)		((base) + 0x2c28)
+#define PCIE_HDP_HOST_WR_DESC4_H(base)		((base) + 0x2c2c)
+#define PCIE_HDP_RX_INT_CTRL(base)		((base) + 0x2c30)
+#define PCIE_HDP_TX_INT_CTRL(base)		((base) + 0x2c34)
+#define PCIE_HDP_INT_STATUS(base)		((base) + 0x2c38)
+#define PCIE_HDP_INT_EN(base)			((base) + 0x2c3c)
+#define PCIE_HDP_RX_DESC0_PTR(base)		((base) + 0x2c40)
+#define PCIE_HDP_RX_DESC0_NOE(base)		((base) + 0x2c44)
+#define PCIE_HDP_RX_DESC1_PTR(base)		((base) + 0x2c48)
+#define PCIE_HDP_RX_DESC1_NOE(base)		((base) + 0x2c4c)
+#define PCIE_HDP_RX_DESC2_PTR(base)		((base) + 0x2c50)
+#define PCIE_HDP_RX_DESC2_NOE(base)		((base) + 0x2c54)
+#define PCIE_HDP_RX_DESC3_PTR(base)		((base) + 0x2c58)
+#define PCIE_HDP_RX_DESC3_NOE(base)		((base) + 0x2c5c)
+
+#define PCIE_HDP_TX0_BASE_ADDR(base)		((base) + 0x2c60)
+#define PCIE_HDP_TX1_BASE_ADDR(base)		((base) + 0x2c64)
+#define PCIE_HDP_TX0_Q_CTRL(base)		((base) + 0x2c70)
+#define PCIE_HDP_TX1_Q_CTRL(base)		((base) + 0x2c74)
+#define PCIE_HDP_CFG0(base)			((base) + 0x2c80)
+#define PCIE_HDP_CFG1(base)			((base) + 0x2c84)
+#define PCIE_HDP_CFG2(base)			((base) + 0x2c88)
+#define PCIE_HDP_CFG3(base)			((base) + 0x2c8c)
+#define PCIE_HDP_CFG4(base)			((base) + 0x2c90)
+#define PCIE_HDP_CFG5(base)			((base) + 0x2c94)
+#define PCIE_HDP_CFG6(base)			((base) + 0x2c98)
+#define PCIE_HDP_CFG7(base)			((base) + 0x2c9c)
+#define PCIE_HDP_CFG8(base)			((base) + 0x2ca0)
+#define PCIE_HDP_CFG9(base)			((base) + 0x2ca4)
+#define PCIE_HDP_CFG10(base)			((base) + 0x2ca8)
+#define PCIE_HDP_CFG11(base)			((base) + 0x2cac)
+#define PCIE_INT(base)				((base) + 0x2cb0)
+#define PCIE_INT_MASK(base)			((base) + 0x2cb4)
+#define PCIE_MSI_MASK(base)			((base) + 0x2cb8)
+#define PCIE_MSI_PNDG(base)			((base) + 0x2cbc)
+#define PCIE_PRI_CFG(base)			((base) + 0x2cc0)
+#define PCIE_PHY_CR(base)			((base) + 0x2cc4)
+#define PCIE_HDP_CTAG_CTRL(base)		((base) + 0x2cf4)
+#define PCIE_HDP_HHBM_BUF_PTR(base)		((base) + 0x2d00)
+#define PCIE_HDP_HHBM_BUF_PTR_H(base)		((base) + 0x2d04)
+#define PCIE_HDP_HHBM_BUF_FIFO_NOE(base)	((base) + 0x2d04)
+#define PCIE_HDP_RX0DMA_CNT(base)		((base) + 0x2d10)
+#define PCIE_HDP_RX1DMA_CNT(base)		((base) + 0x2d14)
+#define PCIE_HDP_RX2DMA_CNT(base)		((base) + 0x2d18)
+#define PCIE_HDP_RX3DMA_CNT(base)		((base) + 0x2d1c)
+#define PCIE_HDP_TX0DMA_CNT(base)		((base) + 0x2d20)
+#define PCIE_HDP_TX1DMA_CNT(base)		((base) + 0x2d24)
+#define PCIE_HDP_RXDMA_CTRL(base)		((base) + 0x2d28)
+#define PCIE_HDP_TX_HOST_Q_SZ_CTRL(base)	((base) + 0x2d2c)
+#define PCIE_HDP_TX_HOST_Q_BASE_L(base)		((base) + 0x2d30)
+#define PCIE_HDP_TX_HOST_Q_BASE_H(base)		((base) + 0x2d34)
+#define PCIE_HDP_TX_HOST_Q_WR_PTR(base)		((base) + 0x2d38)
+#define PCIE_HDP_TX_HOST_Q_RD_PTR(base)		((base) + 0x2d3c)
+#define PCIE_HDP_TX_HOST_Q_STS(base)		((base) + 0x2d40)
+
+/* Pearl PCIe HBM pool registers */
+#define PCIE_HHBM_CSR_REG(base)			((base) + 0x2e00)
+#define PCIE_HHBM_Q_BASE_REG(base)		((base) + 0x2e04)
+#define PCIE_HHBM_Q_LIMIT_REG(base)		((base) + 0x2e08)
+#define PCIE_HHBM_Q_WR_REG(base)		((base) + 0x2e0c)
+#define PCIE_HHBM_Q_RD_REG(base)		((base) + 0x2e10)
+#define PCIE_HHBM_POOL_DATA_0_H(base)		((base) + 0x2e90)
+#define PCIE_HHBM_CONFIG(base)			((base) + 0x2f9c)
+#define PCIE_HHBM_POOL_REQ_0(base)		((base) + 0x2f10)
+#define PCIE_HHBM_POOL_DATA_0(base)		((base) + 0x2f40)
+#define PCIE_HHBM_WATERMARK_MASKED_INT(base)	((base) + 0x2f68)
+#define PCIE_HHBM_WATERMARK_INT(base)		((base) + 0x2f6c)
+#define PCIE_HHBM_POOL_WATERMARK(base)		((base) + 0x2f70)
+#define PCIE_HHBM_POOL_OVERFLOW_CNT(base)	((base) + 0x2f90)
+#define PCIE_HHBM_POOL_UNDERFLOW_CNT(base)	((base) + 0x2f94)
+#define HBM_INT_STATUS(base)			((base) + 0x2f9c)
+#define PCIE_HHBM_POOL_CNFIG(base)		((base) + 0x2f9c)
+
+/* Pearl PCIe HBM bit field definitions */
+#define HHBM_CONFIG_SOFT_RESET			(BIT(8))
+#define HHBM_WR_REQ				(BIT(0))
+#define HHBM_RD_REQ				(BIT(1))
+#define HHBM_DONE				(BIT(31))
+#define HHBM_64BIT				(BIT(10))
+
+/* PCIe HDP interrupt status definition */
+#define PCIE_HDP_INT_EP_RXDMA		(BIT(0))
+#define PCIE_HDP_INT_HBM_UF		(BIT(1))
+#define PCIE_HDP_INT_RX_LEN_ERR		(BIT(2))
+#define PCIE_HDP_INT_RX_HDR_LEN_ERR	(BIT(3))
+#define PCIE_HDP_INT_EP_TXDMA		(BIT(12))
+#define PCIE_HDP_INT_HHBM_UF		(BIT(13))
+#define PCIE_HDP_INT_EP_TXEMPTY		(BIT(15))
+#define PCIE_HDP_INT_IPC		(BIT(29))
+
+/* PCIe interrupt status definition */
+#define PCIE_INT_MSI			(BIT(24))
+#define PCIE_INT_INTX			(BIT(23))
+
+/* PCIe legacy INTx */
+#define PEARL_PCIE_CFG0_OFFSET		(0x6C)
+#define PEARL_ASSERT_INTX		(BIT(9))
+
+/* SYS CTL regs */
+#define QTN_PEARL_SYSCTL_LHOST_IRQ_OFFSET	(0x001C)
+
+#define QTN_PEARL_IPC_IRQ_WORD(irq)	(BIT(irq) | BIT(irq + 16))
+#define QTN_PEARL_LHOST_IPC_IRQ		(6)
+#define QTN_PEARL_LHOST_EP_RESET	(7)
+
+#endif /* __PEARL_PCIE_H */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
new file mode 100644
index 0000000000..d833625783
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
@@ -0,0 +1,1236 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2018 Quantenna Communications */
+
+#include <linux/kernel.h>
+#include <linux/firmware.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/crc32.h>
+#include <linux/completion.h>
+#include <linux/spinlock.h>
+#include <linux/circ_buf.h>
+
+#include "pcie_priv.h"
+#include "topaz_pcie_regs.h"
+#include "topaz_pcie_ipc.h"
+#include "qtn_hw_ids.h"
+#include "core.h"
+#include "bus.h"
+#include "shm_ipc.h"
+#include "debug.h"
+
+#define TOPAZ_TX_BD_SIZE_DEFAULT	128
+#define TOPAZ_RX_BD_SIZE_DEFAULT	256
+
+struct qtnf_topaz_tx_bd {
+	__le32 addr;
+	__le32 info;
+} __packed;
+
+struct qtnf_topaz_rx_bd {
+	__le32 addr;
+	__le32 info;
+} __packed;
+
+struct qtnf_extra_bd_params {
+	__le32 param1;
+	__le32 param2;
+	__le32 param3;
+	__le32 param4;
+} __packed;
+
+#define QTNF_BD_PARAM_OFFSET(n)	offsetof(struct qtnf_extra_bd_params, param##n)
+
+struct vmac_pkt_info {
+	__le32 addr;
+	__le32 info;
+};
+
+struct qtnf_topaz_bda {
+	__le16	bda_len;
+	__le16	bda_version;
+	__le32	bda_bootstate;
+	__le32	bda_dma_mask;
+	__le32	bda_dma_offset;
+	__le32	bda_flags;
+	__le32	bda_img;
+	__le32	bda_img_size;
+	__le32	bda_ep2h_irqstatus;
+	__le32	bda_h2ep_irqstatus;
+	__le32	bda_msi_addr;
+	u8	reserved1[56];
+	__le32	bda_flashsz;
+	u8	bda_boardname[PCIE_BDA_NAMELEN];
+	__le32	bda_pci_pre_status;
+	__le32	bda_pci_endian;
+	__le32	bda_pci_post_status;
+	__le32	bda_h2ep_txd_budget;
+	__le32	bda_ep2h_txd_budget;
+	__le32	bda_rc_rx_bd_base;
+	__le32	bda_rc_rx_bd_num;
+	__le32	bda_rc_tx_bd_base;
+	__le32	bda_rc_tx_bd_num;
+	u8	bda_ep_link_state;
+	u8	bda_rc_link_state;
+	u8	bda_rc_msi_enabled;
+	u8	reserved2;
+	__le32	bda_ep_next_pkt;
+	struct vmac_pkt_info request[QTN_PCIE_RC_TX_QUEUE_LEN];
+	struct qtnf_shm_ipc_region bda_shm_reg1 __aligned(4096);
+	struct qtnf_shm_ipc_region bda_shm_reg2 __aligned(4096);
+} __packed;
+
+struct qtnf_pcie_topaz_state {
+	struct qtnf_pcie_bus_priv base;
+	struct qtnf_topaz_bda __iomem *bda;
+
+	dma_addr_t dma_msi_dummy;
+	u32 dma_msi_imwr;
+
+	struct qtnf_topaz_tx_bd *tx_bd_vbase;
+	struct qtnf_topaz_rx_bd *rx_bd_vbase;
+
+	__le32 __iomem *ep_next_rx_pkt;
+	__le32 __iomem *txqueue_wake;
+	__le32 __iomem *ep_pmstate;
+
+	unsigned long rx_pkt_count;
+};
+
+static void qtnf_deassert_intx(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = ts->base.sysctl_bar + TOPAZ_PCIE_CFG0_OFFSET;
+	u32 cfg;
+
+	cfg = readl(reg);
+	cfg &= ~TOPAZ_ASSERT_INTX;
+	qtnf_non_posted_write(cfg, reg);
+}
+
+static inline int qtnf_topaz_intx_asserted(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = ts->base.sysctl_bar + TOPAZ_PCIE_CFG0_OFFSET;
+	u32 cfg = readl(reg);
+
+	return !!(cfg & TOPAZ_ASSERT_INTX);
+}
+
+static void qtnf_topaz_reset_ep(struct qtnf_pcie_topaz_state *ts)
+{
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_RST_EP_IRQ),
+	       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+	msleep(QTN_EP_RESET_WAIT_MS);
+	pci_restore_state(ts->base.pdev);
+}
+
+static void setup_rx_irqs(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar);
+
+	ts->dma_msi_imwr = readl(reg);
+}
+
+static void enable_rx_irqs(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar);
+
+	qtnf_non_posted_write(ts->dma_msi_imwr, reg);
+}
+
+static void disable_rx_irqs(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar);
+
+	qtnf_non_posted_write(QTN_HOST_LO32(ts->dma_msi_dummy), reg);
+}
+
+static void qtnf_topaz_ipc_gen_ep_int(void *arg)
+{
+	struct qtnf_pcie_topaz_state *ts = arg;
+
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_CTRL_IRQ),
+	       TOPAZ_CTL_M2L_INT(ts->base.sysctl_bar));
+}
+
+static int qtnf_is_state(__le32 __iomem *reg, u32 state)
+{
+	u32 s = readl(reg);
+
+	return (s == state);
+}
+
+static void qtnf_set_state(__le32 __iomem *reg, u32 state)
+{
+	qtnf_non_posted_write(state, reg);
+}
+
+static int qtnf_poll_state(__le32 __iomem *reg, u32 state, u32 delay_in_ms)
+{
+	u32 timeout = 0;
+
+	while ((qtnf_is_state(reg, state) == 0)) {
+		usleep_range(1000, 1200);
+		if (++timeout > delay_in_ms)
+			return -1;
+	}
+
+	return 0;
+}
+
+static int topaz_alloc_bd_table(struct qtnf_pcie_topaz_state *ts,
+				struct qtnf_topaz_bda __iomem *bda)
+{
+	struct qtnf_extra_bd_params __iomem *extra_params;
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	dma_addr_t paddr;
+	void *vaddr;
+	int len;
+	int i;
+
+	/* bd table */
+
+	len = priv->tx_bd_num * sizeof(struct qtnf_topaz_tx_bd) +
+		priv->rx_bd_num * sizeof(struct qtnf_topaz_rx_bd) +
+			sizeof(struct qtnf_extra_bd_params);
+
+	vaddr = dmam_alloc_coherent(&priv->pdev->dev, len, &paddr, GFP_KERNEL);
+	if (!vaddr)
+		return -ENOMEM;
+
+	/* tx bd */
+
+	ts->tx_bd_vbase = vaddr;
+	qtnf_non_posted_write(paddr, &bda->bda_rc_tx_bd_base);
+
+	for (i = 0; i < priv->tx_bd_num; i++)
+		ts->tx_bd_vbase[i].info |= cpu_to_le32(QTN_BD_EMPTY);
+
+	pr_debug("TX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr);
+
+	priv->tx_bd_r_index = 0;
+	priv->tx_bd_w_index = 0;
+
+	/* rx bd */
+
+	vaddr = ((struct qtnf_topaz_tx_bd *)vaddr) + priv->tx_bd_num;
+	paddr += priv->tx_bd_num * sizeof(struct qtnf_topaz_tx_bd);
+
+	ts->rx_bd_vbase = vaddr;
+	qtnf_non_posted_write(paddr, &bda->bda_rc_rx_bd_base);
+
+	pr_debug("RX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr);
+
+	/* extra shared params */
+
+	vaddr = ((struct qtnf_topaz_rx_bd *)vaddr) + priv->rx_bd_num;
+	paddr += priv->rx_bd_num * sizeof(struct qtnf_topaz_rx_bd);
+
+	extra_params = (struct qtnf_extra_bd_params __iomem *)vaddr;
+
+	ts->ep_next_rx_pkt = &extra_params->param1;
+	qtnf_non_posted_write(paddr + QTNF_BD_PARAM_OFFSET(1),
+			      &bda->bda_ep_next_pkt);
+	ts->txqueue_wake = &extra_params->param2;
+	ts->ep_pmstate = &extra_params->param3;
+	ts->dma_msi_dummy = paddr + QTNF_BD_PARAM_OFFSET(4);
+
+	return 0;
+}
+
+static int
+topaz_skb2rbd_attach(struct qtnf_pcie_topaz_state *ts, u16 index, u32 wrap)
+{
+	struct qtnf_topaz_rx_bd *rxbd = &ts->rx_bd_vbase[index];
+	struct sk_buff *skb;
+	dma_addr_t paddr;
+
+	skb = netdev_alloc_skb_ip_align(NULL, SKB_BUF_SIZE);
+	if (!skb) {
+		ts->base.rx_skb[index] = NULL;
+		return -ENOMEM;
+	}
+
+	ts->base.rx_skb[index] = skb;
+
+	paddr = dma_map_single(&ts->base.pdev->dev, skb->data, SKB_BUF_SIZE,
+			       DMA_FROM_DEVICE);
+	if (dma_mapping_error(&ts->base.pdev->dev, paddr)) {
+		pr_err("skb mapping error: %pad\n", &paddr);
+		return -ENOMEM;
+	}
+
+	rxbd->addr = cpu_to_le32(QTN_HOST_LO32(paddr));
+	rxbd->info = cpu_to_le32(QTN_BD_EMPTY | wrap);
+
+	ts->base.rx_bd_w_index = index;
+
+	return 0;
+}
+
+static int topaz_alloc_rx_buffers(struct qtnf_pcie_topaz_state *ts)
+{
+	u16 i;
+	int ret = 0;
+
+	memset(ts->rx_bd_vbase, 0x0,
+	       ts->base.rx_bd_num * sizeof(struct qtnf_topaz_rx_bd));
+
+	for (i = 0; i < ts->base.rx_bd_num; i++) {
+		ret = topaz_skb2rbd_attach(ts, i, 0);
+		if (ret)
+			break;
+	}
+
+	ts->rx_bd_vbase[ts->base.rx_bd_num - 1].info |=
+						cpu_to_le32(QTN_BD_WRAP);
+
+	return ret;
+}
+
+/* all rx/tx activity should have ceased before calling this function */
+static void qtnf_topaz_free_xfer_buffers(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	struct qtnf_topaz_rx_bd *rxbd;
+	struct qtnf_topaz_tx_bd *txbd;
+	struct sk_buff *skb;
+	dma_addr_t paddr;
+	int i;
+
+	/* free rx buffers */
+	for (i = 0; i < priv->rx_bd_num; i++) {
+		if (priv->rx_skb && priv->rx_skb[i]) {
+			rxbd = &ts->rx_bd_vbase[i];
+			skb = priv->rx_skb[i];
+			paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(rxbd->addr));
+			dma_unmap_single(&priv->pdev->dev, paddr,
+					 SKB_BUF_SIZE, DMA_FROM_DEVICE);
+			dev_kfree_skb_any(skb);
+			priv->rx_skb[i] = NULL;
+			rxbd->addr = 0;
+			rxbd->info = 0;
+		}
+	}
+
+	/* free tx buffers */
+	for (i = 0; i < priv->tx_bd_num; i++) {
+		if (priv->tx_skb && priv->tx_skb[i]) {
+			txbd = &ts->tx_bd_vbase[i];
+			skb = priv->tx_skb[i];
+			paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(txbd->addr));
+			dma_unmap_single(&priv->pdev->dev, paddr,
+					 SKB_BUF_SIZE, DMA_TO_DEVICE);
+			dev_kfree_skb_any(skb);
+			priv->tx_skb[i] = NULL;
+			txbd->addr = 0;
+			txbd->info = 0;
+		}
+	}
+}
+
+static int qtnf_pcie_topaz_init_xfer(struct qtnf_pcie_topaz_state *ts,
+				     unsigned int tx_bd_size,
+				     unsigned int rx_bd_size)
+{
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	int ret;
+
+	if (tx_bd_size == 0)
+		tx_bd_size = TOPAZ_TX_BD_SIZE_DEFAULT;
+
+	/* check TX BD queue max length according to struct qtnf_topaz_bda */
+	if (tx_bd_size > QTN_PCIE_RC_TX_QUEUE_LEN) {
+		pr_warn("TX BD queue cannot exceed %d\n",
+			QTN_PCIE_RC_TX_QUEUE_LEN);
+		tx_bd_size = QTN_PCIE_RC_TX_QUEUE_LEN;
+	}
+
+	priv->tx_bd_num = tx_bd_size;
+	qtnf_non_posted_write(priv->tx_bd_num, &bda->bda_rc_tx_bd_num);
+
+	if (rx_bd_size == 0)
+		rx_bd_size = TOPAZ_RX_BD_SIZE_DEFAULT;
+
+	if (rx_bd_size > TOPAZ_RX_BD_SIZE_DEFAULT) {
+		pr_warn("RX BD queue cannot exceed %d\n",
+			TOPAZ_RX_BD_SIZE_DEFAULT);
+		rx_bd_size = TOPAZ_RX_BD_SIZE_DEFAULT;
+	}
+
+	priv->rx_bd_num = rx_bd_size;
+	qtnf_non_posted_write(priv->rx_bd_num, &bda->bda_rc_rx_bd_num);
+
+	priv->rx_bd_w_index = 0;
+	priv->rx_bd_r_index = 0;
+
+	ret = qtnf_pcie_alloc_skb_array(priv);
+	if (ret) {
+		pr_err("failed to allocate skb array\n");
+		return ret;
+	}
+
+	ret = topaz_alloc_bd_table(ts, bda);
+	if (ret) {
+		pr_err("failed to allocate bd table\n");
+		return ret;
+	}
+
+	ret = topaz_alloc_rx_buffers(ts);
+	if (ret) {
+		pr_err("failed to allocate rx buffers\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+static void qtnf_topaz_data_tx_reclaim(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	struct qtnf_topaz_tx_bd *txbd;
+	struct sk_buff *skb;
+	unsigned long flags;
+	dma_addr_t paddr;
+	u32 tx_done_index;
+	int count = 0;
+	int i;
+
+	spin_lock_irqsave(&priv->tx_reclaim_lock, flags);
+
+	tx_done_index = readl(ts->ep_next_rx_pkt);
+	i = priv->tx_bd_r_index;
+
+	if (CIRC_CNT(priv->tx_bd_w_index, tx_done_index, priv->tx_bd_num))
+		writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_DONE_IRQ),
+		       TOPAZ_LH_IPC4_INT(priv->sysctl_bar));
+
+	while (CIRC_CNT(tx_done_index, i, priv->tx_bd_num)) {
+		skb = priv->tx_skb[i];
+
+		if (likely(skb)) {
+			txbd = &ts->tx_bd_vbase[i];
+			paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(txbd->addr));
+			dma_unmap_single(&priv->pdev->dev, paddr, skb->len,
+					 DMA_TO_DEVICE);
+
+			if (skb->dev) {
+				dev_sw_netstats_tx_add(skb->dev, 1, skb->len);
+				if (unlikely(priv->tx_stopped)) {
+					qtnf_wake_all_queues(skb->dev);
+					priv->tx_stopped = 0;
+				}
+			}
+
+			dev_kfree_skb_any(skb);
+		}
+
+		priv->tx_skb[i] = NULL;
+		count++;
+
+		if (++i >= priv->tx_bd_num)
+			i = 0;
+	}
+
+	priv->tx_reclaim_done += count;
+	priv->tx_reclaim_req++;
+	priv->tx_bd_r_index = i;
+
+	spin_unlock_irqrestore(&priv->tx_reclaim_lock, flags);
+}
+
+static void qtnf_try_stop_xmit(struct qtnf_bus *bus, struct net_device *ndev)
+{
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+
+	if (ndev) {
+		netif_tx_stop_all_queues(ndev);
+		ts->base.tx_stopped = 1;
+	}
+
+	writel(0x0, ts->txqueue_wake);
+
+	/* sync up tx queue status before generating interrupt */
+	dma_wmb();
+
+	/* send irq to card: tx stopped */
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_STOP_IRQ),
+	       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+
+	/* schedule reclaim attempt */
+	tasklet_hi_schedule(&ts->base.reclaim_tq);
+}
+
+static void qtnf_try_wake_xmit(struct qtnf_bus *bus, struct net_device *ndev)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	int ready;
+
+	ready = readl(ts->txqueue_wake);
+	if (ready) {
+		netif_wake_queue(ndev);
+	} else {
+		/* re-send irq to card: tx stopped */
+		writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_STOP_IRQ),
+		       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+	}
+}
+
+static int qtnf_tx_queue_ready(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+
+	if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index,
+			priv->tx_bd_num)) {
+		qtnf_topaz_data_tx_reclaim(ts);
+
+		if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index,
+				priv->tx_bd_num)) {
+			priv->tx_full_count++;
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb,
+			     unsigned int macid, unsigned int vifid)
+{
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	struct qtnf_topaz_tx_bd *txbd;
+	dma_addr_t skb_paddr;
+	unsigned long flags;
+	int ret = 0;
+	int len;
+	int i;
+
+	spin_lock_irqsave(&priv->tx_lock, flags);
+
+	if (!qtnf_tx_queue_ready(ts)) {
+		qtnf_try_stop_xmit(bus, skb->dev);
+		spin_unlock_irqrestore(&priv->tx_lock, flags);
+		return NETDEV_TX_BUSY;
+	}
+
+	i = priv->tx_bd_w_index;
+	priv->tx_skb[i] = skb;
+	len = skb->len;
+
+	skb_paddr = dma_map_single(&priv->pdev->dev, skb->data, skb->len,
+				   DMA_TO_DEVICE);
+	if (dma_mapping_error(&priv->pdev->dev, skb_paddr)) {
+		ret = -ENOMEM;
+		goto tx_done;
+	}
+
+	txbd = &ts->tx_bd_vbase[i];
+	txbd->addr = cpu_to_le32(QTN_HOST_LO32(skb_paddr));
+
+	writel(QTN_HOST_LO32(skb_paddr), &bda->request[i].addr);
+	writel(len | QTN_PCIE_TX_VALID_PKT, &bda->request[i].info);
+
+	/* sync up descriptor updates before generating interrupt */
+	dma_wmb();
+
+	/* generate irq to card: tx done */
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_DONE_IRQ),
+	       TOPAZ_LH_IPC4_INT(priv->sysctl_bar));
+
+	if (++i >= priv->tx_bd_num)
+		i = 0;
+
+	priv->tx_bd_w_index = i;
+
+tx_done:
+	if (ret) {
+		if (skb->dev)
+			skb->dev->stats.tx_dropped++;
+		dev_kfree_skb_any(skb);
+	}
+
+	priv->tx_done_count++;
+	spin_unlock_irqrestore(&priv->tx_lock, flags);
+
+	qtnf_topaz_data_tx_reclaim(ts);
+
+	return NETDEV_TX_OK;
+}
+
+static irqreturn_t qtnf_pcie_topaz_interrupt(int irq, void *data)
+{
+	struct qtnf_bus *bus = (struct qtnf_bus *)data;
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+
+	if (!priv->msi_enabled && !qtnf_topaz_intx_asserted(ts))
+		return IRQ_NONE;
+
+	if (!priv->msi_enabled)
+		qtnf_deassert_intx(ts);
+
+	priv->pcie_irq_count++;
+
+	qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in);
+	qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_out);
+
+	if (napi_schedule_prep(&bus->mux_napi)) {
+		disable_rx_irqs(ts);
+		__napi_schedule(&bus->mux_napi);
+	}
+
+	tasklet_hi_schedule(&priv->reclaim_tq);
+
+	return IRQ_HANDLED;
+}
+
+static int qtnf_rx_data_ready(struct qtnf_pcie_topaz_state *ts)
+{
+	u16 index = ts->base.rx_bd_r_index;
+	struct qtnf_topaz_rx_bd *rxbd;
+	u32 descw;
+
+	rxbd = &ts->rx_bd_vbase[index];
+	descw = le32_to_cpu(rxbd->info);
+
+	if (descw & QTN_BD_EMPTY)
+		return 0;
+
+	return 1;
+}
+
+static int qtnf_topaz_rx_poll(struct napi_struct *napi, int budget)
+{
+	struct qtnf_bus *bus = container_of(napi, struct qtnf_bus, mux_napi);
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	struct net_device *ndev = NULL;
+	struct sk_buff *skb = NULL;
+	int processed = 0;
+	struct qtnf_topaz_rx_bd *rxbd;
+	dma_addr_t skb_paddr;
+	int consume;
+	u32 descw;
+	u32 poffset;
+	u32 psize;
+	u16 r_idx;
+	u16 w_idx;
+	int ret;
+
+	while (processed < budget) {
+		if (!qtnf_rx_data_ready(ts))
+			goto rx_out;
+
+		r_idx = priv->rx_bd_r_index;
+		rxbd = &ts->rx_bd_vbase[r_idx];
+		descw = le32_to_cpu(rxbd->info);
+
+		skb = priv->rx_skb[r_idx];
+		poffset = QTN_GET_OFFSET(descw);
+		psize = QTN_GET_LEN(descw);
+		consume = 1;
+
+		if (descw & QTN_BD_EMPTY) {
+			pr_warn("skip invalid rxbd[%d]\n", r_idx);
+			consume = 0;
+		}
+
+		if (!skb) {
+			pr_warn("skip missing rx_skb[%d]\n", r_idx);
+			consume = 0;
+		}
+
+		if (skb && (skb_tailroom(skb) <  psize)) {
+			pr_err("skip packet with invalid length: %u > %u\n",
+			       psize, skb_tailroom(skb));
+			consume = 0;
+		}
+
+		if (skb) {
+			skb_paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(rxbd->addr));
+			dma_unmap_single(&priv->pdev->dev, skb_paddr,
+					 SKB_BUF_SIZE, DMA_FROM_DEVICE);
+		}
+
+		if (consume) {
+			skb_reserve(skb, poffset);
+			skb_put(skb, psize);
+			ndev = qtnf_classify_skb(bus, skb);
+			if (likely(ndev)) {
+				dev_sw_netstats_rx_add(ndev, skb->len);
+				skb->protocol = eth_type_trans(skb, ndev);
+				netif_receive_skb(skb);
+			} else {
+				pr_debug("drop untagged skb\n");
+				bus->mux_dev.stats.rx_dropped++;
+				dev_kfree_skb_any(skb);
+			}
+		} else {
+			if (skb) {
+				bus->mux_dev.stats.rx_dropped++;
+				dev_kfree_skb_any(skb);
+			}
+		}
+
+		/* notify card about recv packets once per several packets */
+		if (((++ts->rx_pkt_count) & RX_DONE_INTR_MSK) == 0)
+			writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_RX_DONE_IRQ),
+			       TOPAZ_LH_IPC4_INT(priv->sysctl_bar));
+
+		priv->rx_skb[r_idx] = NULL;
+		if (++r_idx >= priv->rx_bd_num)
+			r_idx = 0;
+
+		priv->rx_bd_r_index = r_idx;
+
+		/* repalce processed buffer by a new one */
+		w_idx = priv->rx_bd_w_index;
+		while (CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index,
+				  priv->rx_bd_num) > 0) {
+			if (++w_idx >= priv->rx_bd_num)
+				w_idx = 0;
+
+			ret = topaz_skb2rbd_attach(ts, w_idx,
+						   descw & QTN_BD_WRAP);
+			if (ret) {
+				pr_err("failed to allocate new rx_skb[%d]\n",
+				       w_idx);
+				break;
+			}
+		}
+
+		processed++;
+	}
+
+rx_out:
+	if (processed < budget) {
+		napi_complete(napi);
+		enable_rx_irqs(ts);
+	}
+
+	return processed;
+}
+
+static void
+qtnf_pcie_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	qtnf_try_wake_xmit(bus, ndev);
+	tasklet_hi_schedule(&ts->base.reclaim_tq);
+}
+
+static void qtnf_pcie_data_rx_start(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	napi_enable(&bus->mux_napi);
+	enable_rx_irqs(ts);
+}
+
+static void qtnf_pcie_data_rx_stop(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	disable_rx_irqs(ts);
+	napi_disable(&bus->mux_napi);
+}
+
+static struct qtnf_bus_ops qtnf_pcie_topaz_bus_ops = {
+	/* control path methods */
+	.control_tx	= qtnf_pcie_control_tx,
+
+	/* data path methods */
+	.data_tx		= qtnf_pcie_data_tx,
+	.data_tx_timeout	= qtnf_pcie_data_tx_timeout,
+	.data_rx_start		= qtnf_pcie_data_rx_start,
+	.data_rx_stop		= qtnf_pcie_data_rx_stop,
+};
+
+static int qtnf_dbg_irq_stats(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	seq_printf(s, "pcie_irq_count(%u)\n", ts->base.pcie_irq_count);
+
+	return 0;
+}
+
+static int qtnf_dbg_pkt_stats(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	u32 tx_done_index = readl(ts->ep_next_rx_pkt);
+
+	seq_printf(s, "tx_full_count(%u)\n", priv->tx_full_count);
+	seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count);
+	seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done);
+	seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req);
+
+	seq_printf(s, "tx_bd_r_index(%u)\n", priv->tx_bd_r_index);
+	seq_printf(s, "tx_done_index(%u)\n", tx_done_index);
+	seq_printf(s, "tx_bd_w_index(%u)\n", priv->tx_bd_w_index);
+
+	seq_printf(s, "tx host queue len(%u)\n",
+		   CIRC_CNT(priv->tx_bd_w_index, priv->tx_bd_r_index,
+			    priv->tx_bd_num));
+	seq_printf(s, "tx reclaim queue len(%u)\n",
+		   CIRC_CNT(tx_done_index, priv->tx_bd_r_index,
+			    priv->tx_bd_num));
+	seq_printf(s, "tx card queue len(%u)\n",
+		   CIRC_CNT(priv->tx_bd_w_index, tx_done_index,
+			    priv->tx_bd_num));
+
+	seq_printf(s, "rx_bd_r_index(%u)\n", priv->rx_bd_r_index);
+	seq_printf(s, "rx_bd_w_index(%u)\n", priv->rx_bd_w_index);
+	seq_printf(s, "rx alloc queue len(%u)\n",
+		   CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index,
+			      priv->rx_bd_num));
+
+	return 0;
+}
+
+static void qtnf_reset_dma_offset(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	u32 offset = readl(&bda->bda_dma_offset);
+
+	if ((offset & PCIE_DMA_OFFSET_ERROR_MASK) != PCIE_DMA_OFFSET_ERROR)
+		return;
+
+	writel(0x0, &bda->bda_dma_offset);
+}
+
+static int qtnf_pcie_endian_detect(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	u32 timeout = 0;
+	u32 endian;
+	int ret = 0;
+
+	writel(QTN_PCI_ENDIAN_DETECT_DATA, &bda->bda_pci_endian);
+
+	/* flush endian modifications before status update */
+	dma_wmb();
+
+	writel(QTN_PCI_ENDIAN_VALID_STATUS, &bda->bda_pci_pre_status);
+
+	while (readl(&bda->bda_pci_post_status) !=
+	       QTN_PCI_ENDIAN_VALID_STATUS) {
+		usleep_range(1000, 1200);
+		if (++timeout > QTN_FW_DL_TIMEOUT_MS) {
+			pr_err("card endianness detection timed out\n");
+			ret = -ETIMEDOUT;
+			goto endian_out;
+		}
+	}
+
+	/* do not read before status is updated */
+	dma_rmb();
+
+	endian = readl(&bda->bda_pci_endian);
+	WARN(endian != QTN_PCI_LITTLE_ENDIAN,
+	     "%s: unexpected card endianness", __func__);
+
+endian_out:
+	writel(0, &bda->bda_pci_pre_status);
+	writel(0, &bda->bda_pci_post_status);
+	writel(0, &bda->bda_pci_endian);
+
+	return ret;
+}
+
+static int qtnf_pre_init_ep(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	u32 flags;
+	int ret;
+
+	ret = qtnf_pcie_endian_detect(ts);
+	if (ret < 0) {
+		pr_err("failed to detect card endianness\n");
+		return ret;
+	}
+
+	writeb(ts->base.msi_enabled, &ts->bda->bda_rc_msi_enabled);
+	qtnf_reset_dma_offset(ts);
+
+	/* notify card about driver type and boot mode */
+	flags = readl(&bda->bda_flags) | QTN_BDA_HOST_QLINK_DRV;
+
+	if (ts->base.flashboot)
+		flags |= QTN_BDA_FLASH_BOOT;
+	else
+		flags &= ~QTN_BDA_FLASH_BOOT;
+
+	writel(flags, &bda->bda_flags);
+
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_HOST_RDY);
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_TARGET_RDY,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("card is not ready to boot...\n");
+		return -ETIMEDOUT;
+	}
+
+	return ret;
+}
+
+static int qtnf_post_init_ep(struct qtnf_pcie_topaz_state *ts)
+{
+	struct pci_dev *pdev = ts->base.pdev;
+
+	setup_rx_irqs(ts);
+	disable_rx_irqs(ts);
+
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_QLINK_DONE,
+			    QTN_FW_QLINK_TIMEOUT_MS))
+		return -ETIMEDOUT;
+
+	enable_irq(pdev->irq);
+	return 0;
+}
+
+static int
+qtnf_ep_fw_load(struct qtnf_pcie_topaz_state *ts, const u8 *fw, u32 fw_size)
+{
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	struct pci_dev *pdev = ts->base.pdev;
+	u32 remaining = fw_size;
+	u8 *curr = (u8 *)fw;
+	u32 blksize;
+	u32 nblocks;
+	u32 offset;
+	u32 count;
+	u32 size;
+	dma_addr_t paddr;
+	void *data;
+	int ret = 0;
+
+	pr_debug("FW upload started: fw_addr = 0x%p, size=%d\n", fw, fw_size);
+
+	blksize = ts->base.fw_blksize;
+
+	if (blksize < PAGE_SIZE)
+		blksize = PAGE_SIZE;
+
+	while (blksize >= PAGE_SIZE) {
+		pr_debug("allocating %u bytes to upload FW\n", blksize);
+		data = dma_alloc_coherent(&pdev->dev, blksize,
+					  &paddr, GFP_KERNEL);
+		if (data)
+			break;
+		blksize /= 2;
+	}
+
+	if (!data) {
+		pr_err("failed to allocate DMA buffer for FW upload\n");
+		ret = -ENOMEM;
+		goto fw_load_out;
+	}
+
+	nblocks = NBLOCKS(fw_size, blksize);
+	offset = readl(&bda->bda_dma_offset);
+
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_HOST_LOAD);
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_EP_RDY,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("card is not ready to download FW\n");
+		ret = -ETIMEDOUT;
+		goto fw_load_map;
+	}
+
+	for (count = 0 ; count < nblocks; count++) {
+		size = (remaining > blksize) ? blksize : remaining;
+
+		memcpy(data, curr, size);
+		qtnf_non_posted_write(paddr + offset, &bda->bda_img);
+		qtnf_non_posted_write(size, &bda->bda_img_size);
+
+		pr_debug("chunk[%u] VA[0x%p] PA[%pad] sz[%u]\n",
+			 count, (void *)curr, &paddr, size);
+
+		qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_RDY);
+		if (qtnf_poll_state(&ts->bda->bda_bootstate,
+				    QTN_BDA_FW_BLOCK_DONE,
+				    QTN_FW_DL_TIMEOUT_MS)) {
+			pr_err("confirmation for block #%d timed out\n", count);
+			ret = -ETIMEDOUT;
+			goto fw_load_map;
+		}
+
+		remaining = (remaining < size) ? remaining : (remaining - size);
+		curr += size;
+	}
+
+	/* upload completion mark: zero-sized block */
+	qtnf_non_posted_write(0, &bda->bda_img);
+	qtnf_non_posted_write(0, &bda->bda_img_size);
+
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_RDY);
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_DONE,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("confirmation for the last block timed out\n");
+		ret = -ETIMEDOUT;
+		goto fw_load_map;
+	}
+
+	/* RC is done */
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_END);
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_LOAD_DONE,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("confirmation for FW upload completion timed out\n");
+		ret = -ETIMEDOUT;
+		goto fw_load_map;
+	}
+
+	pr_debug("FW upload completed: totally sent %d blocks\n", count);
+
+fw_load_map:
+	dma_free_coherent(&pdev->dev, blksize, data, paddr);
+
+fw_load_out:
+	return ret;
+}
+
+static int qtnf_topaz_fw_upload(struct qtnf_pcie_topaz_state *ts,
+				const char *fwname)
+{
+	const struct firmware *fw;
+	struct pci_dev *pdev = ts->base.pdev;
+	int ret;
+
+	if (qtnf_poll_state(&ts->bda->bda_bootstate,
+			    QTN_BDA_FW_LOAD_RDY,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("%s: card is not ready\n", fwname);
+		return -1;
+	}
+
+	pr_info("starting firmware upload: %s\n", fwname);
+
+	ret = request_firmware(&fw, fwname, &pdev->dev);
+	if (ret < 0) {
+		pr_err("%s: request_firmware error %d\n", fwname, ret);
+		return -1;
+	}
+
+	ret = qtnf_ep_fw_load(ts, fw->data, fw->size);
+	release_firmware(fw);
+
+	if (ret)
+		pr_err("%s: FW upload error\n", fwname);
+
+	return ret;
+}
+
+static void qtnf_topaz_fw_work_handler(struct work_struct *work)
+{
+	struct qtnf_bus *bus = container_of(work, struct qtnf_bus, fw_work);
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	int bootloader_needed = readl(&ts->bda->bda_flags) & QTN_BDA_XMIT_UBOOT;
+	struct pci_dev *pdev = ts->base.pdev;
+	int ret;
+
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_TARGET_BOOT);
+
+	if (bootloader_needed) {
+		ret = qtnf_topaz_fw_upload(ts, QTN_PCI_TOPAZ_BOOTLD_NAME);
+		if (ret)
+			goto fw_load_exit;
+
+		ret = qtnf_pre_init_ep(bus);
+		if (ret)
+			goto fw_load_exit;
+
+		qtnf_set_state(&ts->bda->bda_bootstate,
+			       QTN_BDA_FW_TARGET_BOOT);
+	}
+
+	if (ts->base.flashboot) {
+		pr_info("booting firmware from flash\n");
+
+		ret = qtnf_poll_state(&ts->bda->bda_bootstate,
+				      QTN_BDA_FW_FLASH_BOOT,
+				      QTN_FW_DL_TIMEOUT_MS);
+		if (ret)
+			goto fw_load_exit;
+	} else {
+		ret = qtnf_topaz_fw_upload(ts, QTN_PCI_TOPAZ_FW_NAME);
+		if (ret)
+			goto fw_load_exit;
+
+		qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_START);
+		ret = qtnf_poll_state(&ts->bda->bda_bootstate,
+				      QTN_BDA_FW_CONFIG,
+				      QTN_FW_QLINK_TIMEOUT_MS);
+		if (ret) {
+			pr_err("FW bringup timed out\n");
+			goto fw_load_exit;
+		}
+
+		qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_RUN);
+		ret = qtnf_poll_state(&ts->bda->bda_bootstate,
+				      QTN_BDA_FW_RUNNING,
+				      QTN_FW_QLINK_TIMEOUT_MS);
+		if (ret) {
+			pr_err("card bringup timed out\n");
+			goto fw_load_exit;
+		}
+	}
+
+	ret = qtnf_post_init_ep(ts);
+	if (ret) {
+		pr_err("FW runtime failure\n");
+		goto fw_load_exit;
+	}
+
+	pr_info("firmware is up and running\n");
+
+	ret = qtnf_pcie_fw_boot_done(bus);
+	if (ret)
+		goto fw_load_exit;
+
+	qtnf_debugfs_add_entry(bus, "pkt_stats", qtnf_dbg_pkt_stats);
+	qtnf_debugfs_add_entry(bus, "irq_stats", qtnf_dbg_irq_stats);
+
+fw_load_exit:
+	put_device(&pdev->dev);
+}
+
+static void qtnf_reclaim_tasklet_fn(struct tasklet_struct *t)
+{
+	struct qtnf_pcie_topaz_state *ts = from_tasklet(ts, t, base.reclaim_tq);
+
+	qtnf_topaz_data_tx_reclaim(ts);
+}
+
+static u64 qtnf_topaz_dma_mask_get(void)
+{
+	return DMA_BIT_MASK(32);
+}
+
+static int qtnf_pcie_topaz_probe(struct qtnf_bus *bus,
+				 unsigned int tx_bd_num, unsigned int rx_bd_num)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	struct pci_dev *pdev = ts->base.pdev;
+	struct qtnf_shm_ipc_int ipc_int;
+	unsigned long irqflags;
+	int ret;
+
+	bus->bus_ops = &qtnf_pcie_topaz_bus_ops;
+	INIT_WORK(&bus->fw_work, qtnf_topaz_fw_work_handler);
+	ts->bda = ts->base.epmem_bar;
+
+	/* assign host msi irq before card init */
+	if (ts->base.msi_enabled)
+		irqflags = IRQF_NOBALANCING;
+	else
+		irqflags = IRQF_NOBALANCING | IRQF_SHARED;
+
+	ret = devm_request_irq(&pdev->dev, pdev->irq,
+			       &qtnf_pcie_topaz_interrupt,
+			       irqflags, "qtnf_topaz_irq", (void *)bus);
+	if (ret) {
+		pr_err("failed to request pcie irq %d\n", pdev->irq);
+		return ret;
+	}
+
+	disable_irq(pdev->irq);
+
+	ret = qtnf_pre_init_ep(bus);
+	if (ret) {
+		pr_err("failed to init card\n");
+		return ret;
+	}
+
+	ret = qtnf_pcie_topaz_init_xfer(ts, tx_bd_num, rx_bd_num);
+	if (ret) {
+		pr_err("PCIE xfer init failed\n");
+		return ret;
+	}
+
+	tasklet_setup(&ts->base.reclaim_tq, qtnf_reclaim_tasklet_fn);
+	netif_napi_add_weight(&bus->mux_dev, &bus->mux_napi,
+			      qtnf_topaz_rx_poll, 10);
+
+	ipc_int.fn = qtnf_topaz_ipc_gen_ep_int;
+	ipc_int.arg = ts;
+	qtnf_pcie_init_shm_ipc(&ts->base, &ts->bda->bda_shm_reg1,
+			       &ts->bda->bda_shm_reg2, &ipc_int);
+
+	return 0;
+}
+
+static void qtnf_pcie_topaz_remove(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	qtnf_topaz_reset_ep(ts);
+	qtnf_topaz_free_xfer_buffers(ts);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int qtnf_pcie_topaz_suspend(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	struct pci_dev *pdev = ts->base.pdev;
+
+	writel((u32 __force)PCI_D3hot, ts->ep_pmstate);
+	dma_wmb();
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_PM_EP_IRQ),
+	       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+
+	pci_save_state(pdev);
+	pci_enable_wake(pdev, PCI_D3hot, 1);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
+}
+
+static int qtnf_pcie_topaz_resume(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	struct pci_dev *pdev = ts->base.pdev;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	pci_enable_wake(pdev, PCI_D0, 0);
+
+	writel((u32 __force)PCI_D0, ts->ep_pmstate);
+	dma_wmb();
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_PM_EP_IRQ),
+	       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+
+	return 0;
+}
+#endif
+
+struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev)
+{
+	struct qtnf_bus *bus;
+	struct qtnf_pcie_topaz_state *ts;
+
+	bus = devm_kzalloc(&pdev->dev, sizeof(*bus) + sizeof(*ts), GFP_KERNEL);
+	if (!bus)
+		return NULL;
+
+	ts = get_bus_priv(bus);
+	ts->base.probe_cb = qtnf_pcie_topaz_probe;
+	ts->base.remove_cb = qtnf_pcie_topaz_remove;
+	ts->base.dma_mask_get_cb = qtnf_topaz_dma_mask_get;
+#ifdef CONFIG_PM_SLEEP
+	ts->base.resume_cb = qtnf_pcie_topaz_resume;
+	ts->base.suspend_cb = qtnf_pcie_topaz_suspend;
+#endif
+
+	return bus;
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h
new file mode 100644
index 0000000000..eb30e9d08d
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2018 Quantenna Communications */
+
+#ifndef _QTN_FMAC_PCIE_IPC_H_
+#define _QTN_FMAC_PCIE_IPC_H_
+
+#include <linux/types.h>
+
+#include "shm_ipc_defs.h"
+
+/* EP/RC status and flags */
+#define QTN_BDA_PCIE_INIT		0x01
+#define QTN_BDA_PCIE_RDY		0x02
+#define QTN_BDA_FW_LOAD_RDY		0x03
+#define QTN_BDA_FW_LOAD_DONE		0x04
+#define QTN_BDA_FW_START		0x05
+#define QTN_BDA_FW_RUN			0x06
+#define QTN_BDA_FW_HOST_RDY		0x07
+#define QTN_BDA_FW_TARGET_RDY		0x11
+#define QTN_BDA_FW_TARGET_BOOT		0x12
+#define QTN_BDA_FW_FLASH_BOOT		0x13
+#define QTN_BDA_FW_QLINK_DONE		0x14
+#define QTN_BDA_FW_HOST_LOAD		0x08
+#define QTN_BDA_FW_BLOCK_DONE		0x09
+#define QTN_BDA_FW_BLOCK_RDY		0x0A
+#define QTN_BDA_FW_EP_RDY		0x0B
+#define QTN_BDA_FW_BLOCK_END		0x0C
+#define QTN_BDA_FW_CONFIG		0x0D
+#define QTN_BDA_FW_RUNNING		0x0E
+#define QTN_BDA_PCIE_FAIL		0x82
+#define QTN_BDA_FW_LOAD_FAIL		0x85
+
+#define QTN_BDA_RCMODE			BIT(1)
+#define QTN_BDA_MSI			BIT(2)
+#define QTN_BDA_HOST_CALCMD		BIT(3)
+#define QTN_BDA_FLASH_PRESENT		BIT(4)
+#define QTN_BDA_FLASH_BOOT		BIT(5)
+#define QTN_BDA_XMIT_UBOOT		BIT(6)
+#define QTN_BDA_HOST_QLINK_DRV		BIT(7)
+#define QTN_BDA_TARGET_FBOOT_ERR	BIT(8)
+#define QTN_BDA_TARGET_FWLOAD_ERR	BIT(9)
+#define QTN_BDA_HOST_NOFW_ERR		BIT(12)
+#define QTN_BDA_HOST_MEMALLOC_ERR	BIT(13)
+#define QTN_BDA_HOST_MEMMAP_ERR		BIT(14)
+#define QTN_BDA_VER(x)			(((x) >> 4) & 0xFF)
+#define QTN_BDA_ERROR_MASK		0xFF00
+
+/* registers and shmem address macros */
+#if BITS_PER_LONG == 64
+#define QTN_HOST_HI32(a)	((u32)(((u64)a) >> 32))
+#define QTN_HOST_LO32(a)	((u32)(((u64)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l)	((((u64)h) << 32) | ((u64)l))
+#elif BITS_PER_LONG == 32
+#define QTN_HOST_HI32(a)	0
+#define QTN_HOST_LO32(a)	((u32)(((u32)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l)	((u32)l)
+#else
+#error Unexpected BITS_PER_LONG value
+#endif
+
+#define QTN_PCIE_BDA_VERSION		0x1001
+
+#define PCIE_BDA_NAMELEN		32
+
+#define QTN_PCIE_RC_TX_QUEUE_LEN	256
+#define QTN_PCIE_TX_VALID_PKT		0x80000000
+#define QTN_PCIE_PKT_LEN_MASK		0xffff
+
+#define QTN_BD_EMPTY		((uint32_t)0x00000001)
+#define QTN_BD_WRAP		((uint32_t)0x00000002)
+#define QTN_BD_MASK_LEN		((uint32_t)0xFFFF0000)
+#define QTN_BD_MASK_OFFSET	((uint32_t)0x0000FF00)
+
+#define QTN_GET_LEN(x)		(((x) >> 16) & 0xFFFF)
+#define QTN_GET_OFFSET(x)	(((x) >> 8) & 0xFF)
+#define QTN_SET_LEN(len)	(((len) & 0xFFFF) << 16)
+#define QTN_SET_OFFSET(of)	(((of) & 0xFF) << 8)
+
+#define RX_DONE_INTR_MSK	((0x1 << 6) - 1)
+
+#define PCIE_DMA_OFFSET_ERROR		0xFFFF
+#define PCIE_DMA_OFFSET_ERROR_MASK	0xFFFF
+
+#define QTN_PCI_ENDIAN_DETECT_DATA	0x12345678
+#define QTN_PCI_ENDIAN_REVERSE_DATA	0x78563412
+#define QTN_PCI_ENDIAN_VALID_STATUS	0x3c3c3c3c
+#define QTN_PCI_ENDIAN_INVALID_STATUS	0
+#define QTN_PCI_LITTLE_ENDIAN		0
+#define QTN_PCI_BIG_ENDIAN		0xffffffff
+
+#define NBLOCKS(size, blksize)		\
+	((size) / (blksize) + (((size) % (blksize) > 0) ? 1 : 0))
+
+#endif /* _QTN_FMAC_PCIE_IPC_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h
new file mode 100644
index 0000000000..4782e1ed3c
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2018 Quantenna Communications */
+
+#ifndef __TOPAZ_PCIE_H
+#define __TOPAZ_PCIE_H
+
+/* Topaz PCIe DMA registers */
+#define PCIE_DMA_WR_INTR_STATUS(base)		((base) + 0x9bc)
+#define PCIE_DMA_WR_INTR_MASK(base)		((base) + 0x9c4)
+#define PCIE_DMA_WR_INTR_CLR(base)		((base) + 0x9c8)
+#define PCIE_DMA_WR_ERR_STATUS(base)		((base) + 0x9cc)
+#define PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(base)	((base) + 0x9D0)
+#define PCIE_DMA_WR_DONE_IMWR_ADDR_HIGH(base)	((base) + 0x9d4)
+
+#define PCIE_DMA_RD_INTR_STATUS(base)		((base) + 0x310)
+#define PCIE_DMA_RD_INTR_MASK(base)		((base) + 0x319)
+#define PCIE_DMA_RD_INTR_CLR(base)		((base) + 0x31c)
+#define PCIE_DMA_RD_ERR_STATUS_LOW(base)	((base) + 0x324)
+#define PCIE_DMA_RD_ERR_STATUS_HIGH(base)	((base) + 0x328)
+#define PCIE_DMA_RD_DONE_IMWR_ADDR_LOW(base)	((base) + 0x33c)
+#define PCIE_DMA_RD_DONE_IMWR_ADDR_HIGH(base)	((base) + 0x340)
+
+/* Topaz LHost IPC4 interrupt */
+#define TOPAZ_LH_IPC4_INT(base)			((base) + 0x13C)
+#define TOPAZ_LH_IPC4_INT_MASK(base)		((base) + 0x140)
+
+#define TOPAZ_RC_TX_DONE_IRQ			(0)
+#define TOPAZ_RC_RST_EP_IRQ			(1)
+#define TOPAZ_RC_TX_STOP_IRQ			(2)
+#define TOPAZ_RC_RX_DONE_IRQ			(3)
+#define TOPAZ_RC_PM_EP_IRQ			(4)
+
+/* Topaz LHost M2L interrupt */
+#define TOPAZ_CTL_M2L_INT(base)			((base) + 0x2C)
+#define TOPAZ_CTL_M2L_INT_MASK(base)		((base) + 0x30)
+
+#define TOPAZ_RC_CTRL_IRQ			(6)
+
+#define TOPAZ_IPC_IRQ_WORD(irq)			(BIT(irq) | BIT(irq + 16))
+
+/* PCIe legacy INTx */
+#define TOPAZ_PCIE_CFG0_OFFSET	(0x6C)
+#define TOPAZ_ASSERT_INTX	BIT(9)
+
+#endif /* __TOPAZ_PCIE_H */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink.h b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
new file mode 100644
index 0000000000..674461fa7f
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
@@ -0,0 +1,1886 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_QLINK_H_
+#define _QTN_QLINK_H_
+
+#include <linux/ieee80211.h>
+
+#define QLINK_PROTO_VER_MAJOR_M		0xFFFF
+#define QLINK_PROTO_VER_MAJOR_S		16
+#define QLINK_PROTO_VER_MINOR_M		0xFFFF
+#define QLINK_VER_MINOR(_ver)	((_ver) & QLINK_PROTO_VER_MINOR_M)
+#define QLINK_VER_MAJOR(_ver)	\
+	(((_ver) >> QLINK_PROTO_VER_MAJOR_S) & QLINK_PROTO_VER_MAJOR_M)
+#define QLINK_VER(_maj, _min)	(((_maj) << QLINK_PROTO_VER_MAJOR_S) | (_min))
+
+#define QLINK_PROTO_VER_MAJOR		18
+#define QLINK_PROTO_VER_MINOR		1
+#define QLINK_PROTO_VER		\
+	QLINK_VER(QLINK_PROTO_VER_MAJOR, QLINK_PROTO_VER_MINOR)
+
+#define QLINK_ALIGN	4
+
+#define QLINK_MACID_RSVD		0xFF
+#define QLINK_VIFID_RSVD		0xFF
+
+/* Common QLINK protocol messages definitions.
+ */
+
+/**
+ * enum qlink_msg_type - QLINK message types
+ *
+ * Used to distinguish between message types of QLINK protocol.
+ *
+ * @QLINK_MSG_TYPE_CMD: Message is carrying data of a command sent from
+ *	driver to wireless hardware.
+ * @QLINK_MSG_TYPE_CMDRSP: Message is carrying data of a response to a command.
+ *	Sent from wireless HW to driver in reply to previously issued command.
+ * @QLINK_MSG_TYPE_EVENT: Data for an event originated in wireless hardware and
+ *	sent asynchronously to driver.
+ */
+enum qlink_msg_type {
+	QLINK_MSG_TYPE_CMD	= 1,
+	QLINK_MSG_TYPE_CMDRSP	= 2,
+	QLINK_MSG_TYPE_EVENT	= 3
+};
+
+/**
+ * struct qlink_msg_header - common QLINK protocol message header
+ *
+ * Portion of QLINK protocol header common for all message types.
+ *
+ * @type: Message type, one of &enum qlink_msg_type.
+ * @len: Total length of message including all headers.
+ */
+struct qlink_msg_header {
+	__le16 type;
+	__le16 len;
+} __packed;
+
+/* Generic definitions of data and information carried in QLINK messages
+ */
+
+/**
+ * enum qlink_hw_capab - device capabilities.
+ *
+ * @QLINK_HW_CAPAB_REG_UPDATE: device can update it's regulatory region.
+ * @QLINK_HW_CAPAB_STA_INACT_TIMEOUT: device implements a logic to kick-out
+ *	associated STAs due to inactivity. Inactivity timeout period is taken
+ *	from QLINK_CMD_START_AP parameters.
+ * @QLINK_HW_CAPAB_DFS_OFFLOAD: device implements DFS offload functionality
+ * @QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR: device supports MAC Address
+ *	Randomization in probe requests.
+ * @QLINK_HW_CAPAB_OBSS_SCAN: device can perform OBSS scanning.
+ * @QLINK_HW_CAPAB_HW_BRIDGE: device has hardware switch capabilities.
+ */
+enum qlink_hw_capab {
+	QLINK_HW_CAPAB_REG_UPDATE = 0,
+	QLINK_HW_CAPAB_STA_INACT_TIMEOUT,
+	QLINK_HW_CAPAB_DFS_OFFLOAD,
+	QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR,
+	QLINK_HW_CAPAB_PWR_MGMT,
+	QLINK_HW_CAPAB_OBSS_SCAN,
+	QLINK_HW_CAPAB_SCAN_DWELL,
+	QLINK_HW_CAPAB_SAE,
+	QLINK_HW_CAPAB_HW_BRIDGE,
+	QLINK_HW_CAPAB_NUM
+};
+
+/**
+ * enum qlink_driver_capab - host driver capabilities.
+ *
+ */
+enum qlink_driver_capab {
+	QLINK_DRV_CAPAB_NUM = 0
+};
+
+enum qlink_iface_type {
+	QLINK_IFTYPE_AP		= 1,
+	QLINK_IFTYPE_STATION	= 2,
+	QLINK_IFTYPE_ADHOC	= 3,
+	QLINK_IFTYPE_MONITOR	= 4,
+	QLINK_IFTYPE_WDS	= 5,
+	QLINK_IFTYPE_AP_VLAN	= 6,
+};
+
+/**
+ * struct qlink_intf_info - information on virtual interface.
+ *
+ * Data describing a single virtual interface.
+ *
+ * @if_type: Mode of interface operation, one of &enum qlink_iface_type
+ * @vlanid: VLAN ID for AP_VLAN interface type
+ * @mac_addr: MAC address of virtual interface.
+ */
+struct qlink_intf_info {
+	__le16 if_type;
+	__le16 vlanid;
+	u8 mac_addr[ETH_ALEN];
+	u8 use4addr;
+	u8 rsvd[1];
+} __packed;
+
+enum qlink_sta_flags {
+	QLINK_STA_FLAG_INVALID		= 0,
+	QLINK_STA_FLAG_AUTHORIZED		= BIT(0),
+	QLINK_STA_FLAG_SHORT_PREAMBLE	= BIT(1),
+	QLINK_STA_FLAG_WME			= BIT(2),
+	QLINK_STA_FLAG_MFP			= BIT(3),
+	QLINK_STA_FLAG_AUTHENTICATED		= BIT(4),
+	QLINK_STA_FLAG_TDLS_PEER		= BIT(5),
+	QLINK_STA_FLAG_ASSOCIATED		= BIT(6),
+};
+
+enum qlink_channel_width {
+	QLINK_CHAN_WIDTH_5 = 0,
+	QLINK_CHAN_WIDTH_10,
+	QLINK_CHAN_WIDTH_20_NOHT,
+	QLINK_CHAN_WIDTH_20,
+	QLINK_CHAN_WIDTH_40,
+	QLINK_CHAN_WIDTH_80,
+	QLINK_CHAN_WIDTH_80P80,
+	QLINK_CHAN_WIDTH_160,
+};
+
+/**
+ * struct qlink_channel - qlink control channel definition
+ *
+ * @hw_value: hardware-specific value for the channel
+ * @center_freq: center frequency in MHz
+ * @flags: channel flags from &enum qlink_channel_flags
+ * @band: band this channel belongs to
+ * @max_antenna_gain: maximum antenna gain in dBi
+ * @max_power: maximum transmission power (in dBm)
+ * @max_reg_power: maximum regulatory transmission power (in dBm)
+ * @dfs_state: current state of this channel.
+ *      Only relevant if radar is required on this channel.
+ * @beacon_found: helper to regulatory code to indicate when a beacon
+ *	has been found on this channel. Use regulatory_hint_found_beacon()
+ *	to enable this, this is useful only on 5 GHz band.
+ */
+struct qlink_channel {
+	__le16 hw_value;
+	__le16 center_freq;
+	__le32 flags;
+	u8 band;
+	u8 max_antenna_gain;
+	u8 max_power;
+	u8 max_reg_power;
+	__le32 dfs_cac_ms;
+	u8 dfs_state;
+	u8 beacon_found;
+	u8 rsvd[2];
+} __packed;
+
+/**
+ * struct qlink_chandef - qlink channel definition
+ *
+ * @chan: primary channel definition
+ * @center_freq1: center frequency of first segment
+ * @center_freq2: center frequency of second segment (80+80 only)
+ * @width: channel width, one of @enum qlink_channel_width
+ */
+struct qlink_chandef {
+	struct qlink_channel chan;
+	__le16 center_freq1;
+	__le16 center_freq2;
+	u8 width;
+	u8 rsvd[3];
+} __packed;
+
+#define QLINK_MAX_NR_CIPHER_SUITES            5
+#define QLINK_MAX_NR_AKM_SUITES               2
+
+struct qlink_auth_encr {
+	__le32 wpa_versions;
+	__le32 cipher_group;
+	__le32 n_ciphers_pairwise;
+	__le32 ciphers_pairwise[QLINK_MAX_NR_CIPHER_SUITES];
+	__le32 n_akm_suites;
+	__le32 akm_suites[QLINK_MAX_NR_AKM_SUITES];
+	__le16 control_port_ethertype;
+	u8 auth_type;
+	u8 privacy;
+	u8 control_port;
+	u8 control_port_no_encrypt;
+	u8 rsvd[2];
+} __packed;
+
+/**
+ * struct qlink_sta_info_state - station flags mask/value
+ *
+ * @mask: STA flags mask, bitmap of &enum qlink_sta_flags
+ * @value: STA flags values, bitmap of &enum qlink_sta_flags
+ */
+struct qlink_sta_info_state {
+	__le32 mask;
+	__le32 value;
+} __packed;
+
+/**
+ * enum qlink_sr_ctrl_flags - control flags for spatial reuse parameter set
+ *
+ * @QLINK_SR_PSR_DISALLOWED: indicates whether or not PSR-based spatial reuse
+ * transmissions are allowed for STAs associated with the AP
+ * @QLINK_SR_NON_SRG_OBSS_PD_SR_DISALLOWED: indicates whether or not
+ * Non-SRG OBSS PD spatial reuse transmissions are allowed for STAs associated
+ * with the AP
+ * @NON_SRG_OFFSET_PRESENT: indicates whether or not Non-SRG OBSS PD Max offset
+ * field is valid in the element
+ * @QLINK_SR_SRG_INFORMATION_PRESENT: indicates whether or not SRG OBSS PD
+ * Min/Max offset fields ore valid in the element
+ */
+enum qlink_sr_ctrl_flags {
+	QLINK_SR_PSR_DISALLOWED                = BIT(0),
+	QLINK_SR_NON_SRG_OBSS_PD_SR_DISALLOWED = BIT(1),
+	QLINK_SR_NON_SRG_OFFSET_PRESENT        = BIT(2),
+	QLINK_SR_SRG_INFORMATION_PRESENT       = BIT(3),
+};
+
+/**
+ * struct qlink_sr_params - spatial reuse parameters
+ *
+ * @sr_control: spatial reuse control field; flags contained in this field are
+ * defined in @qlink_sr_ctrl_flags
+ * @non_srg_obss_pd_max: added to -82 dBm to generate the value of the
+ * Non-SRG OBSS PD Max parameter
+ * @srg_obss_pd_min_offset: added to -82 dBm to generate the value of the
+ * SRG OBSS PD Min parameter
+ * @srg_obss_pd_max_offset: added to -82 dBm to generate the value of the
+ * SRG PBSS PD Max parameter
+ */
+struct qlink_sr_params {
+	u8 sr_control;
+	u8 non_srg_obss_pd_max;
+	u8 srg_obss_pd_min_offset;
+	u8 srg_obss_pd_max_offset;
+} __packed;
+
+/* QLINK Command messages related definitions
+ */
+
+/**
+ * enum qlink_cmd_type - list of supported commands
+ *
+ * Commands are QLINK messages of type @QLINK_MSG_TYPE_CMD, sent by driver to
+ * wireless network device for processing. Device is expected to send back a
+ * reply message of type &QLINK_MSG_TYPE_CMDRSP, containing at least command
+ * execution status (one of &enum qlink_cmd_result). Reply message
+ * may also contain data payload specific to the command type.
+ *
+ * @QLINK_CMD_SEND_FRAME: send specified frame over the air; firmware will
+ *	encapsulate 802.3 packet into 802.11 frame automatically.
+ * @QLINK_CMD_BAND_INFO_GET: for the specified MAC and specified band, get
+ *	the band's description including number of operational channels and
+ *	info on each channel, HT/VHT capabilities, supported rates etc.
+ *	This command is generic to a specified MAC, interface index must be set
+ *	to QLINK_VIFID_RSVD in command header.
+ * @QLINK_CMD_REG_NOTIFY: notify device about regulatory domain change. This
+ *	command is supported only if device reports QLINK_HW_SUPPORTS_REG_UPDATE
+ *	capability.
+ * @QLINK_CMD_START_CAC: start radar detection procedure on a specified channel.
+ * @QLINK_CMD_TXPWR: get or set current channel transmit power for
+ *	the specified MAC.
+ * @QLINK_CMD_NDEV_EVENT: signalizes changes made with a corresponding network
+ *	device.
+ */
+enum qlink_cmd_type {
+	QLINK_CMD_FW_INIT		= 0x0001,
+	QLINK_CMD_FW_DEINIT		= 0x0002,
+	QLINK_CMD_REGISTER_MGMT		= 0x0003,
+	QLINK_CMD_SEND_FRAME		= 0x0004,
+	QLINK_CMD_MGMT_SET_APPIE	= 0x0005,
+	QLINK_CMD_PHY_PARAMS_SET	= 0x0012,
+	QLINK_CMD_GET_HW_INFO		= 0x0013,
+	QLINK_CMD_MAC_INFO		= 0x0014,
+	QLINK_CMD_ADD_INTF		= 0x0015,
+	QLINK_CMD_DEL_INTF		= 0x0016,
+	QLINK_CMD_CHANGE_INTF		= 0x0017,
+	QLINK_CMD_UPDOWN_INTF		= 0x0018,
+	QLINK_CMD_REG_NOTIFY		= 0x0019,
+	QLINK_CMD_BAND_INFO_GET		= 0x001A,
+	QLINK_CMD_CHAN_SWITCH		= 0x001B,
+	QLINK_CMD_CHAN_GET		= 0x001C,
+	QLINK_CMD_START_CAC		= 0x001D,
+	QLINK_CMD_START_AP		= 0x0021,
+	QLINK_CMD_STOP_AP		= 0x0022,
+	QLINK_CMD_SET_MAC_ACL		= 0x0023,
+	QLINK_CMD_GET_STA_INFO		= 0x0030,
+	QLINK_CMD_ADD_KEY		= 0x0040,
+	QLINK_CMD_DEL_KEY		= 0x0041,
+	QLINK_CMD_SET_DEFAULT_KEY	= 0x0042,
+	QLINK_CMD_SET_DEFAULT_MGMT_KEY	= 0x0043,
+	QLINK_CMD_CHANGE_STA		= 0x0051,
+	QLINK_CMD_DEL_STA		= 0x0052,
+	QLINK_CMD_SCAN			= 0x0053,
+	QLINK_CMD_CHAN_STATS		= 0x0054,
+	QLINK_CMD_NDEV_EVENT		= 0x0055,
+	QLINK_CMD_CONNECT		= 0x0060,
+	QLINK_CMD_DISCONNECT		= 0x0061,
+	QLINK_CMD_PM_SET		= 0x0062,
+	QLINK_CMD_WOWLAN_SET		= 0x0063,
+	QLINK_CMD_EXTERNAL_AUTH		= 0x0066,
+	QLINK_CMD_TXPWR			= 0x0067,
+	QLINK_CMD_UPDATE_OWE		= 0x0068,
+};
+
+/**
+ * struct qlink_cmd - QLINK command message header
+ *
+ * Header used for QLINK messages of QLINK_MSG_TYPE_CMD type.
+ *
+ * @mhdr: Common QLINK message header.
+ * @cmd_id: command id, one of &enum qlink_cmd_type.
+ * @seq_num: sequence number of command message, used for matching with
+ *	response message.
+ * @macid: index of physical radio device the command is destined to or
+ *	QLINK_MACID_RSVD if not applicable.
+ * @vifid: index of virtual wireless interface on specified @macid the command
+ *	is destined to or QLINK_VIFID_RSVD if not applicable.
+ */
+struct qlink_cmd {
+	struct qlink_msg_header mhdr;
+	__le16 cmd_id;
+	__le16 seq_num;
+	u8 macid;
+	u8 vifid;
+	u8 rsvd[2];
+} __packed;
+
+/**
+ * struct qlink_cmd_init_fw - data for QLINK_CMD_FW_INIT
+ *
+ * Initialize firmware based on specified host configuration. This is the first
+ * command sent to wifi card and it's fixed part should never be changed, any
+ * additions must be done by appending TLVs.
+ * If wifi card can not operate with a specified parameters it will return
+ * error.
+ *
+ * @qlink_proto_ver: QLINK protocol version used by host driver.
+ */
+struct qlink_cmd_init_fw {
+	struct qlink_cmd chdr;
+	__le32 qlink_proto_ver;
+	u8 var_info[];
+} __packed;
+
+/**
+ * struct qlink_cmd_manage_intf - interface management command
+ *
+ * Data for interface management commands QLINK_CMD_ADD_INTF, QLINK_CMD_DEL_INTF
+ * and QLINK_CMD_CHANGE_INTF.
+ *
+ * @intf_info: interface description.
+ */
+struct qlink_cmd_manage_intf {
+	struct qlink_cmd chdr;
+	struct qlink_intf_info intf_info;
+} __packed;
+
+enum qlink_mgmt_frame_type {
+	QLINK_MGMT_FRAME_ASSOC_REQ	= 0x00,
+	QLINK_MGMT_FRAME_ASSOC_RESP	= 0x01,
+	QLINK_MGMT_FRAME_REASSOC_REQ	= 0x02,
+	QLINK_MGMT_FRAME_REASSOC_RESP	= 0x03,
+	QLINK_MGMT_FRAME_PROBE_REQ	= 0x04,
+	QLINK_MGMT_FRAME_PROBE_RESP	= 0x05,
+	QLINK_MGMT_FRAME_BEACON		= 0x06,
+	QLINK_MGMT_FRAME_ATIM		= 0x07,
+	QLINK_MGMT_FRAME_DISASSOC	= 0x08,
+	QLINK_MGMT_FRAME_AUTH		= 0x09,
+	QLINK_MGMT_FRAME_DEAUTH		= 0x0A,
+	QLINK_MGMT_FRAME_ACTION		= 0x0B,
+
+	QLINK_MGMT_FRAME_TYPE_COUNT
+};
+
+/**
+ * struct qlink_cmd_mgmt_frame_register - data for QLINK_CMD_REGISTER_MGMT
+ *
+ * @frame_type: MGMT frame type the registration request describes, one of
+ *	&enum qlink_mgmt_frame_type.
+ * @do_register: 0 - unregister, otherwise register for reception of specified
+ *	MGMT frame type.
+ */
+struct qlink_cmd_mgmt_frame_register {
+	struct qlink_cmd chdr;
+	__le16 frame_type;
+	u8 do_register;
+	u8 rsvd[1];
+} __packed;
+
+/**
+ * @QLINK_FRAME_TX_FLAG_8023: frame has a 802.3 header; if not set, frame
+ *	is a 802.11 encapsulated.
+ */
+enum qlink_frame_tx_flags {
+	QLINK_FRAME_TX_FLAG_OFFCHAN	= BIT(0),
+	QLINK_FRAME_TX_FLAG_NO_CCK	= BIT(1),
+	QLINK_FRAME_TX_FLAG_ACK_NOWAIT	= BIT(2),
+	QLINK_FRAME_TX_FLAG_8023	= BIT(3),
+};
+
+/**
+ * struct qlink_cmd_frame_tx - data for QLINK_CMD_SEND_FRAME command
+ *
+ * @cookie: opaque request identifier.
+ * @freq: Frequency to use for frame transmission.
+ * @flags: Transmission flags, one of &enum qlink_frame_tx_flags.
+ * @frame_data: frame to transmit.
+ */
+struct qlink_cmd_frame_tx {
+	struct qlink_cmd chdr;
+	__le32 cookie;
+	__le16 freq;
+	__le16 flags;
+	u8 frame_data[];
+} __packed;
+
+/**
+ * struct qlink_cmd_get_sta_info - data for QLINK_CMD_GET_STA_INFO command
+ *
+ * @sta_addr: MAC address of the STA statistics is requested for.
+ */
+struct qlink_cmd_get_sta_info {
+	struct qlink_cmd chdr;
+	u8 sta_addr[ETH_ALEN];
+	u8 rsvd[2];
+} __packed;
+
+/**
+ * struct qlink_cmd_add_key - data for QLINK_CMD_ADD_KEY command.
+ *
+ * @key_index: index of the key being installed.
+ * @pairwise: whether to use pairwise key.
+ * @addr: MAC address of a STA key is being installed to.
+ * @cipher: cipher suite.
+ * @vlanid: VLAN ID for AP_VLAN interface type
+ * @key_data: key data itself.
+ */
+struct qlink_cmd_add_key {
+	struct qlink_cmd chdr;
+	u8 key_index;
+	u8 pairwise;
+	u8 addr[ETH_ALEN];
+	__le32 cipher;
+	__le16 vlanid;
+	u8 rsvd[2];
+	u8 key_data[];
+} __packed;
+
+/**
+ * struct qlink_cmd_del_key_req - data for QLINK_CMD_DEL_KEY command
+ *
+ * @key_index: index of the key being removed.
+ * @pairwise: whether to use pairwise key.
+ * @addr: MAC address of a STA for which a key is removed.
+ */
+struct qlink_cmd_del_key {
+	struct qlink_cmd chdr;
+	u8 key_index;
+	u8 pairwise;
+	u8 addr[ETH_ALEN];
+} __packed;
+
+/**
+ * struct qlink_cmd_set_def_key - data for QLINK_CMD_SET_DEFAULT_KEY command
+ *
+ * @key_index: index of the key to be set as default one.
+ * @unicast: key is unicast.
+ * @multicast: key is multicast.
+ */
+struct qlink_cmd_set_def_key {
+	struct qlink_cmd chdr;
+	u8 key_index;
+	u8 unicast;
+	u8 multicast;
+	u8 rsvd[1];
+} __packed;
+
+/**
+ * struct qlink_cmd_set_def_mgmt_key - data for QLINK_CMD_SET_DEFAULT_MGMT_KEY
+ *
+ * @key_index: index of the key to be set as default MGMT key.
+ */
+struct qlink_cmd_set_def_mgmt_key {
+	struct qlink_cmd chdr;
+	u8 key_index;
+	u8 rsvd[3];
+} __packed;
+
+/**
+ * struct qlink_cmd_change_sta - data for QLINK_CMD_CHANGE_STA command
+ *
+ * @flag_update: STA flags to update
+ * @if_type: Mode of interface operation, one of &enum qlink_iface_type
+ * @vlanid: VLAN ID to assign to specific STA
+ * @sta_addr: address of the STA for which parameters are set.
+ */
+struct qlink_cmd_change_sta {
+	struct qlink_cmd chdr;
+	struct qlink_sta_info_state flag_update;
+	__le16 if_type;
+	__le16 vlanid;
+	u8 sta_addr[ETH_ALEN];
+	u8 rsvd[2];
+} __packed;
+
+/**
+ * struct qlink_cmd_del_sta - data for QLINK_CMD_DEL_STA command.
+ *
+ * See &struct station_del_parameters
+ */
+struct qlink_cmd_del_sta {
+	struct qlink_cmd chdr;
+	__le16 reason_code;
+	u8 sta_addr[ETH_ALEN];
+	u8 subtype;
+	u8 rsvd[3];
+} __packed;
+
+enum qlink_sta_connect_flags {
+	QLINK_STA_CONNECT_DISABLE_HT	= BIT(0),
+	QLINK_STA_CONNECT_DISABLE_VHT	= BIT(1),
+	QLINK_STA_CONNECT_USE_RRM	= BIT(2),
+};
+
+/**
+ * struct qlink_cmd_connect - data for QLINK_CMD_CONNECT command
+ *
+ * @bssid: BSSID of the BSS to connect to.
+ * @bssid_hint: recommended AP BSSID for initial connection to the BSS or
+ *	00:00:00:00:00:00 if not specified.
+ * @prev_bssid: previous BSSID, if specified (not 00:00:00:00:00:00) indicates
+ *	a request to reassociate.
+ * @bg_scan_period: period of background scan.
+ * @flags: one of &enum qlink_sta_connect_flags.
+ * @ht_capa: HT Capabilities overrides.
+ * @ht_capa_mask: The bits of ht_capa which are to be used.
+ * @vht_capa: VHT Capability overrides
+ * @vht_capa_mask: The bits of vht_capa which are to be used.
+ * @aen: authentication information.
+ * @mfp: whether to use management frame protection.
+ * @payload: variable portion of connection request.
+ */
+struct qlink_cmd_connect {
+	struct qlink_cmd chdr;
+	u8 bssid[ETH_ALEN];
+	u8 bssid_hint[ETH_ALEN];
+	u8 prev_bssid[ETH_ALEN];
+	__le16 bg_scan_period;
+	__le32 flags;
+	struct ieee80211_ht_cap ht_capa;
+	struct ieee80211_ht_cap ht_capa_mask;
+	struct ieee80211_vht_cap vht_capa;
+	struct ieee80211_vht_cap vht_capa_mask;
+	struct qlink_auth_encr aen;
+	u8 mfp;
+	u8 pbss;
+	u8 rsvd[2];
+	u8 payload[];
+} __packed;
+
+/**
+ * struct qlink_cmd_external_auth - data for QLINK_CMD_EXTERNAL_AUTH command
+ *
+ * @bssid: BSSID of the BSS to connect to
+ * @status: authentication status code
+ * @payload: variable portion of connection request.
+ */
+struct qlink_cmd_external_auth {
+	struct qlink_cmd chdr;
+	u8 peer[ETH_ALEN];
+	__le16 status;
+	u8 payload[];
+} __packed;
+
+/**
+ * struct qlink_cmd_disconnect - data for QLINK_CMD_DISCONNECT command
+ *
+ * @reason: code of the reason of disconnect, see &enum ieee80211_reasoncode.
+ */
+struct qlink_cmd_disconnect {
+	struct qlink_cmd chdr;
+	__le16 reason;
+	u8 rsvd[2];
+} __packed;
+
+/**
+ * struct qlink_cmd_updown - data for QLINK_CMD_UPDOWN_INTF command
+ *
+ * @if_up: bring specified interface DOWN (if_up==0) or UP (otherwise).
+ *	Interface is specified in common command header @chdr.
+ */
+struct qlink_cmd_updown {
+	struct qlink_cmd chdr;
+	u8 if_up;
+	u8 rsvd[3];
+} __packed;
+
+/**
+ * enum qlink_band - a list of frequency bands
+ *
+ * @QLINK_BAND_2GHZ: 2.4GHz band
+ * @QLINK_BAND_5GHZ: 5GHz band
+ * @QLINK_BAND_60GHZ: 60GHz band
+ */
+enum qlink_band {
+	QLINK_BAND_2GHZ = BIT(0),
+	QLINK_BAND_5GHZ = BIT(1),
+	QLINK_BAND_60GHZ = BIT(2),
+};
+
+/**
+ * struct qlink_cmd_band_info_get - data for QLINK_CMD_BAND_INFO_GET command
+ *
+ * @band: a PHY band for which information is queried, one of @enum qlink_band
+ */
+struct qlink_cmd_band_info_get {
+	struct qlink_cmd chdr;
+	u8 band;
+	u8 rsvd[3];
+} __packed;
+
+/**
+ * struct qlink_cmd_get_chan_stats - data for QLINK_CMD_CHAN_STATS command
+ *
+ * @channel_freq: channel center frequency
+ */
+struct qlink_cmd_get_chan_stats {
+	struct qlink_cmd chdr;
+	__le32 channel_freq;
+} __packed;
+
+/**
+ * enum qlink_reg_initiator - Indicates the initiator of a reg domain request
+ *
+ * See &enum nl80211_reg_initiator for more info.
+ */
+enum qlink_reg_initiator {
+	QLINK_REGDOM_SET_BY_CORE,
+	QLINK_REGDOM_SET_BY_USER,
+	QLINK_REGDOM_SET_BY_DRIVER,
+	QLINK_REGDOM_SET_BY_COUNTRY_IE,
+};
+
+/**
+ * enum qlink_user_reg_hint_type - type of user regulatory hint
+ *
+ * See &enum nl80211_user_reg_hint_type for more info.
+ */
+enum qlink_user_reg_hint_type {
+	QLINK_USER_REG_HINT_USER	= 0,
+	QLINK_USER_REG_HINT_CELL_BASE	= 1,
+	QLINK_USER_REG_HINT_INDOOR	= 2,
+};
+
+/**
+ * struct qlink_cmd_reg_notify - data for QLINK_CMD_REG_NOTIFY command
+ *
+ * @alpha2: the ISO / IEC 3166 alpha2 country code.
+ * @initiator: which entity sent the request, one of &enum qlink_reg_initiator.
+ * @user_reg_hint_type: type of hint for QLINK_REGDOM_SET_BY_USER request, one
+ *	of &enum qlink_user_reg_hint_type.
+ * @num_channels: number of &struct qlink_tlv_channel in a variable portion of a
+ *	payload.
+ * @dfs_region: one of &enum qlink_dfs_regions.
+ * @slave_radar: whether slave device should enable radar detection.
+ * @dfs_offload: enable or disable DFS offload to firmware.
+ * @info: variable portion of regulatory notifier callback.
+ */
+struct qlink_cmd_reg_notify {
+	struct qlink_cmd chdr;
+	u8 alpha2[2];
+	u8 initiator;
+	u8 user_reg_hint_type;
+	u8 num_channels;
+	u8 dfs_region;
+	u8 slave_radar;
+	u8 dfs_offload;
+	u8 info[];
+} __packed;
+
+/**
+ * enum qlink_chan_sw_flags - channel switch control flags
+ *
+ * @QLINK_CHAN_SW_RADAR_REQUIRED: whether radar detection is required on a new
+ *	channel.
+ * @QLINK_CHAN_SW_BLOCK_TX: whether transmissions should be blocked while
+ *	changing a channel.
+ */
+enum qlink_chan_sw_flags {
+	QLINK_CHAN_SW_RADAR_REQUIRED = BIT(0),
+	QLINK_CHAN_SW_BLOCK_TX = BIT(1),
+};
+
+/**
+ * struct qlink_cmd_chan_switch - data for QLINK_CMD_CHAN_SWITCH command
+ *
+ * @channel: channel to switch to.
+ * @flags: flags to control channel switch, bitmap of &enum qlink_chan_sw_flags.
+ * @beacon_count: number of beacons until switch
+ */
+struct qlink_cmd_chan_switch {
+	struct qlink_cmd chdr;
+	struct qlink_chandef channel;
+	__le64 flags;
+	__le32 n_counter_offsets_beacon;
+	__le32 n_counter_offsets_presp;
+	u8 beacon_count;
+	u8 rsvd[3];
+} __packed;
+
+/**
+ * enum qlink_hidden_ssid - values for %NL80211_ATTR_HIDDEN_SSID
+ *
+ * Refer to &enum nl80211_hidden_ssid
+ */
+enum qlink_hidden_ssid {
+	QLINK_HIDDEN_SSID_NOT_IN_USE,
+	QLINK_HIDDEN_SSID_ZERO_LEN,
+	QLINK_HIDDEN_SSID_ZERO_CONTENTS
+};
+
+/**
+ * struct qlink_cmd_start_ap - data for QLINK_CMD_START_AP command
+ *
+ * @beacon_interval: beacon interval
+ * @inactivity_timeout: station's inactivity period in seconds
+ * @dtim_period: DTIM period
+ * @hidden_ssid: whether to hide the SSID, one of &enum qlink_hidden_ssid
+ * @smps_mode: SMPS mode
+ * @ht_required: stations must support HT
+ * @vht_required: stations must support VHT
+ * @aen: encryption info
+ * @sr_params: spatial reuse parameters
+ * @twt_responder: enable Target Wake Time
+ * @info: variable configurations
+ */
+struct qlink_cmd_start_ap {
+	struct qlink_cmd chdr;
+	__le16 beacon_interval;
+	__le16 inactivity_timeout;
+	u8 dtim_period;
+	u8 hidden_ssid;
+	u8 smps_mode;
+	u8 p2p_ctwindow;
+	u8 p2p_opp_ps;
+	u8 pbss;
+	u8 ht_required;
+	u8 vht_required;
+	struct qlink_auth_encr aen;
+	struct qlink_sr_params sr_params;
+	u8 twt_responder;
+	u8 rsvd[3];
+	u8 info[];
+} __packed;
+
+/**
+ * struct qlink_cmd_start_cac - data for QLINK_CMD_START_CAC command
+ *
+ * @chan: a channel to start a radar detection procedure on.
+ * @cac_time_ms: CAC time.
+ */
+struct qlink_cmd_start_cac {
+	struct qlink_cmd chdr;
+	struct qlink_chandef chan;
+	__le32 cac_time_ms;
+} __packed;
+
+enum qlink_acl_policy {
+	QLINK_ACL_POLICY_ACCEPT_UNLESS_LISTED,
+	QLINK_ACL_POLICY_DENY_UNLESS_LISTED,
+};
+
+struct qlink_mac_address {
+	u8 addr[ETH_ALEN];
+} __packed;
+
+/**
+ * struct qlink_acl_data - ACL data
+ *
+ * @policy: filter policy, one of &enum qlink_acl_policy.
+ * @num_entries: number of MAC addresses in array.
+ * @mac_address: MAC addresses array.
+ */
+struct qlink_acl_data {
+	__le32 policy;
+	__le32 num_entries;
+	struct qlink_mac_address mac_addrs[];
+} __packed;
+
+/**
+ * enum qlink_pm_mode - Power Management mode
+ *
+ * @QLINK_PM_OFF: normal mode, no power saving enabled
+ * @QLINK_PM_AUTO_STANDBY: enable auto power save mode
+ */
+enum qlink_pm_mode {
+	QLINK_PM_OFF		= 0,
+	QLINK_PM_AUTO_STANDBY	= 1,
+};
+
+/**
+ * struct qlink_cmd_pm_set - data for QLINK_CMD_PM_SET command
+ *
+ * @pm_standby timer: period of network inactivity in seconds before
+ *	putting a radio in power save mode
+ * @pm_mode: power management mode
+ */
+struct qlink_cmd_pm_set {
+	struct qlink_cmd chdr;
+	__le32 pm_standby_timer;
+	u8 pm_mode;
+	u8 rsvd[3];
+} __packed;
+
+/**
+ * enum qlink_txpwr_op - transmit power operation type
+ * @QLINK_TXPWR_SET: set tx power
+ * @QLINK_TXPWR_GET: get current tx power setting
+ */
+enum qlink_txpwr_op {
+	QLINK_TXPWR_SET,
+	QLINK_TXPWR_GET
+};
+
+/**
+ * struct qlink_cmd_txpwr - get or set current transmit power
+ *
+ * @txpwr: new transmit power setting, in mBm
+ * @txpwr_setting: transmit power setting type, one of
+ *	&enum nl80211_tx_power_setting
+ * @op_type: type of operation, one of &enum qlink_txpwr_op
+ */
+struct qlink_cmd_txpwr {
+	struct qlink_cmd chdr;
+	__le32 txpwr;
+	u8 txpwr_setting;
+	u8 op_type;
+	u8 rsvd[2];
+} __packed;
+
+/**
+ * enum qlink_wowlan_trigger
+ *
+ * @QLINK_WOWLAN_TRIG_DISCONNECT: wakeup on disconnect
+ * @QLINK_WOWLAN_TRIG_MAGIC_PKT: wakeup on magic packet
+ * @QLINK_WOWLAN_TRIG_PATTERN_PKT: wakeup on user-defined packet
+ */
+enum qlink_wowlan_trigger {
+	QLINK_WOWLAN_TRIG_DISCONNECT	= BIT(0),
+	QLINK_WOWLAN_TRIG_MAGIC_PKT	= BIT(1),
+	QLINK_WOWLAN_TRIG_PATTERN_PKT	= BIT(2),
+};
+
+/**
+ * struct qlink_cmd_wowlan_set - data for QLINK_CMD_WOWLAN_SET command
+ *
+ * @triggers: requested bitmask of WoWLAN triggers
+ */
+struct qlink_cmd_wowlan_set {
+	struct qlink_cmd chdr;
+	__le32 triggers;
+	u8 data[];
+} __packed;
+
+enum qlink_ndev_event_type {
+	QLINK_NDEV_EVENT_CHANGEUPPER,
+};
+
+/**
+ * struct qlink_cmd_ndev_event - data for QLINK_CMD_NDEV_EVENT command
+ *
+ * @event: type of event, one of &enum qlink_ndev_event_type
+ */
+struct qlink_cmd_ndev_event {
+	struct qlink_cmd chdr;
+	__le16 event;
+	u8 rsvd[2];
+} __packed;
+
+enum qlink_ndev_upper_type {
+	QLINK_NDEV_UPPER_TYPE_NONE,
+	QLINK_NDEV_UPPER_TYPE_BRIDGE,
+};
+
+/**
+ * struct qlink_cmd_ndev_changeupper - data for QLINK_NDEV_EVENT_CHANGEUPPER
+ *
+ * @br_domain: layer 2 broadcast domain ID that ndev is a member of
+ * @upper_type: type of upper device, one of &enum qlink_ndev_upper_type
+ */
+struct qlink_cmd_ndev_changeupper {
+	struct qlink_cmd_ndev_event nehdr;
+	__le64 flags;
+	__le32 br_domain;
+	__le32 netspace_id;
+	__le16 vlanid;
+	u8 upper_type;
+	u8 rsvd[1];
+} __packed;
+
+/**
+ * enum qlink_scan_flags -  scan request control flags
+ *
+ * Scan flags are used to control QLINK_CMD_SCAN behavior.
+ *
+ * @QLINK_SCAN_FLAG_FLUSH: flush cache before scanning.
+ */
+enum qlink_scan_flags {
+	QLINK_SCAN_FLAG_FLUSH = BIT(0),
+	QLINK_SCAN_FLAG_DURATION_MANDATORY = BIT(1),
+};
+
+/**
+ * struct qlink_cmd_scan - data for QLINK_CMD_SCAN command
+ *
+ * @flags: scan flags, a bitmap of &enum qlink_scan_flags.
+ * @n_ssids: number of WLAN_EID_SSID TLVs expected in variable portion of the
+ *	command.
+ * @n_channels: number of QTN_TLV_ID_CHANNEL TLVs expected in variable payload.
+ * @active_dwell: time spent on a single channel for an active scan.
+ * @passive_dwell: time spent on a single channel for a passive scan.
+ * @sample_duration: total duration of sampling a single channel during a scan
+ *	including off-channel dwell time and operating channel time.
+ * @bssid: specific BSSID to scan for or a broadcast BSSID.
+ * @scan_width: channel width to use, one of &enum qlink_channel_width.
+ */
+struct qlink_cmd_scan {
+	struct qlink_cmd chdr;
+	__le64 flags;
+	__le16 n_ssids;
+	__le16 n_channels;
+	__le16 active_dwell;
+	__le16 passive_dwell;
+	__le16 sample_duration;
+	u8 bssid[ETH_ALEN];
+	u8 scan_width;
+	u8 rsvd[3];
+	u8 var_info[];
+} __packed;
+
+/**
+ * struct qlink_cmd_update_owe - data for QLINK_CMD_UPDATE_OWE_INFO command
+ *
+ * @peer: MAC of the peer device for which OWE processing has been completed
+ * @status: OWE external processing status code
+ * @ies: IEs for the peer constructed by the user space
+ */
+struct qlink_cmd_update_owe {
+	struct qlink_cmd chdr;
+	u8 peer[ETH_ALEN];
+	__le16 status;
+	u8 ies[];
+} __packed;
+
+/* QLINK Command Responses messages related definitions
+ */
+
+enum qlink_cmd_result {
+	QLINK_CMD_RESULT_OK = 0,
+	QLINK_CMD_RESULT_INVALID,
+	QLINK_CMD_RESULT_ENOTSUPP,
+	QLINK_CMD_RESULT_ENOTFOUND,
+	QLINK_CMD_RESULT_EALREADY,
+	QLINK_CMD_RESULT_EADDRINUSE,
+	QLINK_CMD_RESULT_EADDRNOTAVAIL,
+	QLINK_CMD_RESULT_EBUSY,
+};
+
+/**
+ * struct qlink_resp - QLINK command response message header
+ *
+ * Header used for QLINK messages of QLINK_MSG_TYPE_CMDRSP type.
+ *
+ * @mhdr: see &struct qlink_msg_header.
+ * @cmd_id: command ID the response corresponds to, one of &enum qlink_cmd_type.
+ * @seq_num: sequence number of command message, used for matching with
+ *	response message.
+ * @result: result of the command execution, one of &enum qlink_cmd_result.
+ * @macid: index of physical radio device the response is sent from or
+ *	QLINK_MACID_RSVD if not applicable.
+ * @vifid: index of virtual wireless interface on specified @macid the response
+ *	is sent from or QLINK_VIFID_RSVD if not applicable.
+ */
+struct qlink_resp {
+	struct qlink_msg_header mhdr;
+	__le16 cmd_id;
+	__le16 seq_num;
+	__le16 result;
+	u8 macid;
+	u8 vifid;
+} __packed;
+
+/**
+ * struct qlink_resp_init_fw - response for QLINK_CMD_FW_INIT
+ *
+ * @qlink_proto_ver: QLINK protocol version used by wifi card firmware.
+ */
+struct qlink_resp_init_fw {
+	struct qlink_resp rhdr;
+	__le32 qlink_proto_ver;
+} __packed;
+
+/**
+ * enum qlink_dfs_regions - regulatory DFS regions
+ *
+ * Corresponds to &enum nl80211_dfs_regions.
+ */
+enum qlink_dfs_regions {
+	QLINK_DFS_UNSET	= 0,
+	QLINK_DFS_FCC	= 1,
+	QLINK_DFS_ETSI	= 2,
+	QLINK_DFS_JP	= 3,
+};
+
+/**
+ * struct qlink_resp_get_mac_info - response for QLINK_CMD_MAC_INFO command
+ *
+ * Data describing specific physical device providing wireless MAC
+ * functionality.
+ *
+ * @dev_mac: MAC address of physical WMAC device (used for first BSS on
+ *	specified WMAC).
+ * @num_tx_chain: Number of transmit chains used by WMAC.
+ * @num_rx_chain: Number of receive chains used by WMAC.
+ * @vht_cap_mod_mask: mask specifying which VHT capabilities can be altered.
+ * @ht_cap_mod_mask: mask specifying which HT capabilities can be altered.
+ * @max_scan_ssids: maximum number of SSIDs the device can scan for in any scan.
+ * @bands_cap: wireless bands WMAC can operate in, bitmap of &enum qlink_band.
+ * @max_ap_assoc_sta: Maximum number of associations supported by WMAC.
+ * @radar_detect_widths: bitmask of channels BW for which WMAC can detect radar.
+ * @alpha2: country code ID firmware is configured to.
+ * @n_reg_rules: number of regulatory rules TLVs in variable portion of the
+ *	message.
+ * @dfs_region: regulatory DFS region, one of &enum qlink_dfs_regions.
+ * @var_info: variable-length WMAC info data.
+ */
+struct qlink_resp_get_mac_info {
+	struct qlink_resp rhdr;
+	u8 dev_mac[ETH_ALEN];
+	u8 num_tx_chain;
+	u8 num_rx_chain;
+	struct ieee80211_vht_cap vht_cap_mod_mask;
+	struct ieee80211_ht_cap ht_cap_mod_mask;
+
+	__le16 max_ap_assoc_sta;
+	__le32 hw_version;
+	__le32 probe_resp_offload;
+	__le32 bss_select_support;
+	__le16 n_addresses;
+	__le16 radar_detect_widths;
+	__le16 max_remain_on_channel_duration;
+	__le16 max_acl_mac_addrs;
+
+	__le32 frag_threshold;
+	__le32 rts_threshold;
+	u8 retry_short;
+	u8 retry_long;
+	u8 coverage_class;
+
+	u8 max_scan_ssids;
+	u8 max_sched_scan_reqs;
+	u8 max_sched_scan_ssids;
+	u8 max_match_sets;
+	u8 max_adj_channel_rssi_comp;
+
+	__le16 max_scan_ie_len;
+	__le16 max_sched_scan_ie_len;
+	__le32 max_sched_scan_plans;
+	__le32 max_sched_scan_plan_interval;
+	__le32 max_sched_scan_plan_iterations;
+
+	u8 n_cipher_suites;
+	u8 n_akm_suites;
+	u8 max_num_pmkids;
+	u8 num_iftype_ext_capab;
+	u8 extended_capabilities_len;
+	u8 max_data_retry_count;
+	u8 n_iface_combinations;
+	u8 max_num_csa_counters;
+
+	u8 bands_cap;
+	u8 alpha2[2];
+	u8 n_reg_rules;
+	u8 dfs_region;
+	u8 rsvd[3];
+	u8 var_info[];
+} __packed;
+
+/**
+ * struct qlink_resp_get_hw_info - response for QLINK_CMD_GET_HW_INFO command
+ *
+ * Description of wireless hardware capabilities and features.
+ *
+ * @fw_ver: wireless hardware firmware version.
+ * @num_mac: Number of separate physical radio devices provided by hardware.
+ * @mac_bitmap: Bitmap of MAC IDs that are active and can be used in firmware.
+ * @total_tx_chains: total number of transmit chains used by device.
+ * @total_rx_chains: total number of receive chains.
+ * @info: variable-length HW info.
+ */
+struct qlink_resp_get_hw_info {
+	struct qlink_resp rhdr;
+	__le32 fw_ver;
+	__le32 bld_tmstamp;
+	__le32 plat_id;
+	__le32 hw_ver;
+	u8 num_mac;
+	u8 mac_bitmap;
+	u8 total_tx_chain;
+	u8 total_rx_chain;
+	u8 info[];
+} __packed;
+
+/**
+ * struct qlink_resp_manage_intf - response for interface management commands
+ *
+ * Response data for QLINK_CMD_ADD_INTF and QLINK_CMD_CHANGE_INTF commands.
+ *
+ * @rhdr: Common Command Response message header.
+ * @intf_info: interface description.
+ */
+struct qlink_resp_manage_intf {
+	struct qlink_resp rhdr;
+	struct qlink_intf_info intf_info;
+} __packed;
+
+enum qlink_sta_info_rate_flags {
+	QLINK_STA_INFO_RATE_FLAG_HT_MCS		= BIT(0),
+	QLINK_STA_INFO_RATE_FLAG_VHT_MCS	= BIT(1),
+	QLINK_STA_INFO_RATE_FLAG_SHORT_GI	= BIT(2),
+	QLINK_STA_INFO_RATE_FLAG_60G		= BIT(3),
+	QLINK_STA_INFO_RATE_FLAG_HE_MCS		= BIT(4),
+};
+
+/**
+ * struct qlink_resp_get_sta_info - response for QLINK_CMD_GET_STA_INFO command
+ *
+ * Response data containing statistics for specified STA.
+ *
+ * @sta_addr: MAC address of STA the response carries statistic for.
+ * @info: variable statistics for specified STA.
+ */
+struct qlink_resp_get_sta_info {
+	struct qlink_resp rhdr;
+	u8 sta_addr[ETH_ALEN];
+	u8 rsvd[2];
+	u8 info[];
+} __packed;
+
+/**
+ * struct qlink_resp_band_info_get - response for QLINK_CMD_BAND_INFO_GET cmd
+ *
+ * @band: frequency band that the response describes, one of @enum qlink_band.
+ * @num_chans: total number of channels info TLVs contained in reply.
+ * @num_bitrates: total number of bitrate TLVs contained in reply.
+ * @info: variable-length info portion.
+ */
+struct qlink_resp_band_info_get {
+	struct qlink_resp rhdr;
+	u8 band;
+	u8 num_chans;
+	u8 num_bitrates;
+	u8 rsvd[1];
+	u8 info[];
+} __packed;
+
+/**
+ * struct qlink_resp_get_chan_stats - response for QLINK_CMD_CHAN_STATS cmd
+ *
+ * @chan_freq: center frequency for a channel the report is sent for.
+ * @info: variable-length channel info.
+ */
+struct qlink_resp_get_chan_stats {
+	struct qlink_resp rhdr;
+	__le32 chan_freq;
+	u8 info[];
+} __packed;
+
+/**
+ * struct qlink_resp_channel_get - response for QLINK_CMD_CHAN_GET command
+ *
+ * @chan: definition of current operating channel.
+ */
+struct qlink_resp_channel_get {
+	struct qlink_resp rhdr;
+	struct qlink_chandef chan;
+} __packed;
+
+/**
+ * struct qlink_resp_txpwr - response for QLINK_CMD_TXPWR command
+ *
+ * This response is intended for QLINK_TXPWR_GET operation and does not
+ * contain any meaningful information in case of QLINK_TXPWR_SET operation.
+ *
+ * @txpwr: current transmit power setting, in mBm
+ */
+struct qlink_resp_txpwr {
+	struct qlink_resp rhdr;
+	__le32 txpwr;
+} __packed;
+
+/* QLINK Events messages related definitions
+ */
+
+enum qlink_event_type {
+	QLINK_EVENT_STA_ASSOCIATED	= 0x0021,
+	QLINK_EVENT_STA_DEAUTH		= 0x0022,
+	QLINK_EVENT_MGMT_RECEIVED	= 0x0023,
+	QLINK_EVENT_SCAN_RESULTS	= 0x0024,
+	QLINK_EVENT_SCAN_COMPLETE	= 0x0025,
+	QLINK_EVENT_BSS_JOIN		= 0x0026,
+	QLINK_EVENT_BSS_LEAVE		= 0x0027,
+	QLINK_EVENT_FREQ_CHANGE		= 0x0028,
+	QLINK_EVENT_RADAR		= 0x0029,
+	QLINK_EVENT_EXTERNAL_AUTH	= 0x0030,
+	QLINK_EVENT_MIC_FAILURE		= 0x0031,
+	QLINK_EVENT_UPDATE_OWE		= 0x0032,
+};
+
+/**
+ * struct qlink_event - QLINK event message header
+ *
+ * Header used for QLINK messages of QLINK_MSG_TYPE_EVENT type.
+ *
+ * @mhdr: Common QLINK message header.
+ * @event_id: Specifies specific event ID, one of &enum qlink_event_type.
+ * @macid: index of physical radio device the event was generated on or
+ *	QLINK_MACID_RSVD if not applicable.
+ * @vifid: index of virtual wireless interface on specified @macid the event
+ *	was generated on or QLINK_VIFID_RSVD if not applicable.
+ */
+struct qlink_event {
+	struct qlink_msg_header mhdr;
+	__le16 event_id;
+	u8 macid;
+	u8 vifid;
+} __packed;
+
+/**
+ * struct qlink_event_sta_assoc - data for QLINK_EVENT_STA_ASSOCIATED event
+ *
+ * @sta_addr: Address of a STA for which new association event was generated
+ * @frame_control: control bits from 802.11 ASSOC_REQUEST header.
+ * @payload: IEs from association request.
+ */
+struct qlink_event_sta_assoc {
+	struct qlink_event ehdr;
+	u8 sta_addr[ETH_ALEN];
+	__le16 frame_control;
+	u8 ies[];
+} __packed;
+
+/**
+ * struct qlink_event_sta_deauth - data for QLINK_EVENT_STA_DEAUTH event
+ *
+ * @sta_addr: Address of a deauthenticated STA.
+ * @reason: reason for deauthentication.
+ */
+struct qlink_event_sta_deauth {
+	struct qlink_event ehdr;
+	u8 sta_addr[ETH_ALEN];
+	__le16 reason;
+} __packed;
+
+/**
+ * struct qlink_event_bss_join - data for QLINK_EVENT_BSS_JOIN event
+ *
+ * @chan: new operating channel definition
+ * @bssid: BSSID of a BSS which interface tried to joined.
+ * @status: status of joining attempt, see &enum ieee80211_statuscode.
+ */
+struct qlink_event_bss_join {
+	struct qlink_event ehdr;
+	struct qlink_chandef chan;
+	u8 bssid[ETH_ALEN];
+	__le16 status;
+	u8 ies[];
+} __packed;
+
+/**
+ * struct qlink_event_bss_leave - data for QLINK_EVENT_BSS_LEAVE event
+ *
+ * @reason: reason of disconnecting from BSS.
+ */
+struct qlink_event_bss_leave {
+	struct qlink_event ehdr;
+	__le16 reason;
+	u8 rsvd[2];
+} __packed;
+
+/**
+ * struct qlink_event_freq_change - data for QLINK_EVENT_FREQ_CHANGE event
+ *
+ * @chan: new operating channel definition
+ */
+struct qlink_event_freq_change {
+	struct qlink_event ehdr;
+	struct qlink_chandef chan;
+} __packed;
+
+enum qlink_rxmgmt_flags {
+	QLINK_RXMGMT_FLAG_ANSWERED = 1 << 0,
+};
+
+/**
+ * struct qlink_event_rxmgmt - data for QLINK_EVENT_MGMT_RECEIVED event
+ *
+ * @freq: Frequency on which the frame was received in MHz.
+ * @flags: bitmap of &enum qlink_rxmgmt_flags.
+ * @sig_dbm: signal strength in dBm.
+ * @frame_data: data of Rx'd frame itself.
+ */
+struct qlink_event_rxmgmt {
+	struct qlink_event ehdr;
+	__le32 freq;
+	__le32 flags;
+	s8 sig_dbm;
+	u8 rsvd[3];
+	u8 frame_data[];
+} __packed;
+
+/**
+ * struct qlink_event_scan_result - data for QLINK_EVENT_SCAN_RESULTS event
+ *
+ * @tsf: TSF timestamp indicating when scan results were generated.
+ * @freq: Center frequency of the channel where BSS for which the scan result
+ *	event was generated was discovered.
+ * @capab: capabilities field.
+ * @bintval: beacon interval announced by discovered BSS.
+ * @sig_dbm: signal strength in dBm.
+ * @bssid: BSSID announced by discovered BSS.
+ * @ssid_len: length of SSID announced by BSS.
+ * @ssid: SSID announced by discovered BSS.
+ * @payload: IEs that are announced by discovered BSS in its MGMt frames.
+ */
+struct qlink_event_scan_result {
+	struct qlink_event ehdr;
+	__le64 tsf;
+	__le16 freq;
+	__le16 capab;
+	__le16 bintval;
+	s8 sig_dbm;
+	u8 ssid_len;
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	u8 bssid[ETH_ALEN];
+	u8 rsvd[2];
+	u8 payload[];
+} __packed;
+
+/**
+ * enum qlink_scan_complete_flags - indicates result of scan request.
+ *
+ * @QLINK_SCAN_NONE: Scan request was processed.
+ * @QLINK_SCAN_ABORTED: Scan was aborted.
+ */
+enum qlink_scan_complete_flags {
+	QLINK_SCAN_NONE		= 0,
+	QLINK_SCAN_ABORTED	= BIT(0),
+};
+
+/**
+ * struct qlink_event_scan_complete - data for QLINK_EVENT_SCAN_COMPLETE event
+ *
+ * @flags: flags indicating the status of pending scan request,
+ *	see &enum qlink_scan_complete_flags.
+ */
+struct qlink_event_scan_complete {
+	struct qlink_event ehdr;
+	__le32 flags;
+} __packed;
+
+enum qlink_radar_event {
+	QLINK_RADAR_DETECTED,
+	QLINK_RADAR_CAC_FINISHED,
+	QLINK_RADAR_CAC_ABORTED,
+	QLINK_RADAR_NOP_FINISHED,
+	QLINK_RADAR_PRE_CAC_EXPIRED,
+	QLINK_RADAR_CAC_STARTED,
+};
+
+/**
+ * struct qlink_event_radar - data for QLINK_EVENT_RADAR event
+ *
+ * @chan: channel on which radar event happened.
+ * @event: radar event type, one of &enum qlink_radar_event.
+ */
+struct qlink_event_radar {
+	struct qlink_event ehdr;
+	struct qlink_chandef chan;
+	u8 event;
+	u8 rsvd[3];
+} __packed;
+
+/**
+ * struct qlink_event_external_auth - data for QLINK_EVENT_EXTERNAL_AUTH event
+ *
+ * @ssid: SSID announced by BSS
+ * @ssid_len: SSID length
+ * @bssid: BSSID of the BSS to connect to
+ * @akm_suite: AKM suite for external authentication
+ * @action: action type/trigger for external authentication
+ */
+struct qlink_event_external_auth {
+	struct qlink_event ehdr;
+	__le32 akm_suite;
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	u8 bssid[ETH_ALEN];
+	u8 ssid_len;
+	u8 action;
+} __packed;
+
+/**
+ * struct qlink_event_mic_failure - data for QLINK_EVENT_MIC_FAILURE event
+ *
+ * @src: source MAC address of the frame
+ * @key_index: index of the key being reported
+ * @pairwise: whether the key is pairwise or group
+ */
+struct qlink_event_mic_failure {
+	struct qlink_event ehdr;
+	u8 src[ETH_ALEN];
+	u8 key_index;
+	u8 pairwise;
+} __packed;
+
+/**
+ * struct qlink_event_update_owe - data for QLINK_EVENT_UPDATE_OWE event
+ *
+ * @peer: MAC addr of the peer device for which OWE processing needs to be done
+ * @ies: IEs from the peer
+ */
+struct qlink_event_update_owe {
+	struct qlink_event ehdr;
+	u8 peer[ETH_ALEN];
+	u8 rsvd[2];
+	u8 ies[];
+} __packed;
+
+/* QLINK TLVs (Type-Length Values) definitions
+ */
+
+/**
+ * enum qlink_tlv_id - list of TLVs that Qlink messages can carry
+ *
+ * @QTN_TLV_ID_BITMAP: a data representing a bitmap that is used together with
+ *	other TLVs:
+ *	&enum qlink_sta_info used to indicate which statistic carried in
+ *	QTN_TLV_ID_STA_STATS is valid.
+ *	&enum qlink_hw_capab listing wireless card capabilities.
+ *	&enum qlink_driver_capab listing driver/host system capabilities.
+ *	&enum qlink_chan_stat used to indicate which statistic carried in
+ *	QTN_TLV_ID_CHANNEL_STATS is valid.
+ * @QTN_TLV_ID_STA_STATS: per-STA statistics as defined by
+ *	&struct qlink_sta_stats. Valid values are marked as such in a bitmap
+ *	carried by QTN_TLV_ID_BITMAP.
+ * @QTN_TLV_ID_IFTYPE_DATA: supported band data.
+ */
+enum qlink_tlv_id {
+	QTN_TLV_ID_FRAG_THRESH		= 0x0201,
+	QTN_TLV_ID_RTS_THRESH		= 0x0202,
+	QTN_TLV_ID_SRETRY_LIMIT		= 0x0203,
+	QTN_TLV_ID_LRETRY_LIMIT		= 0x0204,
+	QTN_TLV_ID_REG_RULE		= 0x0207,
+	QTN_TLV_ID_CHANNEL		= 0x020F,
+	QTN_TLV_ID_CHANDEF		= 0x0210,
+	QTN_TLV_ID_BITMAP		= 0x0211,
+	QTN_TLV_ID_STA_STATS		= 0x0212,
+	QTN_TLV_ID_COVERAGE_CLASS	= 0x0213,
+	QTN_TLV_ID_IFACE_LIMIT		= 0x0214,
+	QTN_TLV_ID_CHANNEL_STATS	= 0x0216,
+	QTN_TLV_ID_KEY			= 0x0302,
+	QTN_TLV_ID_SEQ			= 0x0303,
+	QTN_TLV_ID_IE_SET		= 0x0305,
+	QTN_TLV_ID_EXT_CAPABILITY_MASK	= 0x0306,
+	QTN_TLV_ID_ACL_DATA		= 0x0307,
+	QTN_TLV_ID_BUILD_NAME		= 0x0401,
+	QTN_TLV_ID_BUILD_REV		= 0x0402,
+	QTN_TLV_ID_BUILD_TYPE		= 0x0403,
+	QTN_TLV_ID_BUILD_LABEL		= 0x0404,
+	QTN_TLV_ID_HW_ID		= 0x0405,
+	QTN_TLV_ID_CALIBRATION_VER	= 0x0406,
+	QTN_TLV_ID_UBOOT_VER		= 0x0407,
+	QTN_TLV_ID_RANDOM_MAC_ADDR	= 0x0408,
+	QTN_TLV_ID_WOWLAN_CAPAB		= 0x0410,
+	QTN_TLV_ID_WOWLAN_PATTERN	= 0x0411,
+	QTN_TLV_ID_IFTYPE_DATA		= 0x0418,
+};
+
+struct qlink_tlv_hdr {
+	__le16 type;
+	__le16 len;
+	u8 val[];
+} __packed;
+
+struct qlink_iface_limit {
+	__le16 max_num;
+	__le16 type;
+} __packed;
+
+struct qlink_iface_limit_record {
+	__le16 max_interfaces;
+	u8 num_different_channels;
+	u8 n_limits;
+	struct qlink_iface_limit limits[];
+} __packed;
+
+#define QLINK_RSSI_OFFSET	120
+
+/**
+ * enum qlink_reg_rule_flags - regulatory rule flags
+ *
+ * See description of &enum nl80211_reg_rule_flags
+ */
+enum qlink_reg_rule_flags {
+	QLINK_RRF_NO_OFDM	= BIT(0),
+	QLINK_RRF_NO_CCK	= BIT(1),
+	QLINK_RRF_NO_INDOOR	= BIT(2),
+	QLINK_RRF_NO_OUTDOOR	= BIT(3),
+	QLINK_RRF_DFS		= BIT(4),
+	QLINK_RRF_PTP_ONLY	= BIT(5),
+	QLINK_RRF_PTMP_ONLY	= BIT(6),
+	QLINK_RRF_NO_IR		= BIT(7),
+	QLINK_RRF_AUTO_BW	= BIT(8),
+	QLINK_RRF_IR_CONCURRENT	= BIT(9),
+	QLINK_RRF_NO_HT40MINUS	= BIT(10),
+	QLINK_RRF_NO_HT40PLUS	= BIT(11),
+	QLINK_RRF_NO_80MHZ	= BIT(12),
+	QLINK_RRF_NO_160MHZ	= BIT(13),
+};
+
+/**
+ * struct qlink_tlv_reg_rule - data for QTN_TLV_ID_REG_RULE TLV
+ *
+ * Regulatory rule description.
+ *
+ * @start_freq_khz: start frequency of the range the rule is attributed to.
+ * @end_freq_khz: end frequency of the range the rule is attributed to.
+ * @max_bandwidth_khz: max bandwidth that channels in specified range can be
+ *	configured to.
+ * @max_antenna_gain: max antenna gain that can be used in the specified
+ *	frequency range, dBi.
+ * @max_eirp: maximum EIRP.
+ * @flags: regulatory rule flags in &enum qlink_reg_rule_flags.
+ * @dfs_cac_ms: DFS CAC period.
+ */
+struct qlink_tlv_reg_rule {
+	struct qlink_tlv_hdr hdr;
+	__le32 start_freq_khz;
+	__le32 end_freq_khz;
+	__le32 max_bandwidth_khz;
+	__le32 max_antenna_gain;
+	__le32 max_eirp;
+	__le32 flags;
+	__le32 dfs_cac_ms;
+} __packed;
+
+enum qlink_channel_flags {
+	QLINK_CHAN_DISABLED		= BIT(0),
+	QLINK_CHAN_NO_IR		= BIT(1),
+	QLINK_CHAN_RADAR		= BIT(3),
+	QLINK_CHAN_NO_HT40PLUS		= BIT(4),
+	QLINK_CHAN_NO_HT40MINUS		= BIT(5),
+	QLINK_CHAN_NO_OFDM		= BIT(6),
+	QLINK_CHAN_NO_80MHZ		= BIT(7),
+	QLINK_CHAN_NO_160MHZ		= BIT(8),
+	QLINK_CHAN_INDOOR_ONLY		= BIT(9),
+	QLINK_CHAN_IR_CONCURRENT	= BIT(10),
+	QLINK_CHAN_NO_20MHZ		= BIT(11),
+	QLINK_CHAN_NO_10MHZ		= BIT(12),
+};
+
+enum qlink_dfs_state {
+	QLINK_DFS_USABLE,
+	QLINK_DFS_UNAVAILABLE,
+	QLINK_DFS_AVAILABLE,
+};
+
+/**
+ * struct qlink_tlv_channel - data for QTN_TLV_ID_CHANNEL TLV
+ *
+ * Channel settings.
+ *
+ * @channel: ieee80211 channel settings.
+ */
+struct qlink_tlv_channel {
+	struct qlink_tlv_hdr hdr;
+	struct qlink_channel chan;
+} __packed;
+
+/**
+ * struct qlink_tlv_chandef - data for QTN_TLV_ID_CHANDEF TLV
+ *
+ * Channel definition.
+ *
+ * @chan: channel definition data.
+ */
+struct qlink_tlv_chandef {
+	struct qlink_tlv_hdr hdr;
+	struct qlink_chandef chdef;
+} __packed;
+
+enum qlink_ie_set_type {
+	QLINK_IE_SET_UNKNOWN,
+	QLINK_IE_SET_ASSOC_REQ,
+	QLINK_IE_SET_ASSOC_RESP,
+	QLINK_IE_SET_PROBE_REQ,
+	QLINK_IE_SET_SCAN,
+	QLINK_IE_SET_BEACON_HEAD,
+	QLINK_IE_SET_BEACON_TAIL,
+	QLINK_IE_SET_BEACON_IES,
+	QLINK_IE_SET_PROBE_RESP,
+	QLINK_IE_SET_PROBE_RESP_IES,
+};
+
+/**
+ * struct qlink_tlv_ie_set - data for QTN_TLV_ID_IE_SET
+ *
+ * @type: type of MGMT frame IEs belong to, one of &enum qlink_ie_set_type.
+ * @flags: for future use.
+ * @ie_data: IEs data.
+ */
+struct qlink_tlv_ie_set {
+	struct qlink_tlv_hdr hdr;
+	u8 type;
+	u8 flags;
+	u8 rsvd[2];
+	u8 ie_data[];
+} __packed;
+
+/**
+ * struct qlink_tlv_ext_ie - extension IE
+ *
+ * @eid_ext: element ID extension, one of &enum ieee80211_eid_ext.
+ * @ie_data: IEs data.
+ */
+struct qlink_tlv_ext_ie {
+	struct qlink_tlv_hdr hdr;
+	u8 eid_ext;
+	u8 rsvd[3];
+	u8 ie_data[];
+} __packed;
+
+#define IEEE80211_HE_PPE_THRES_MAX_LEN		25
+struct qlink_sband_iftype_data {
+	__le16 types_mask;
+	struct ieee80211_he_cap_elem he_cap_elem;
+	struct ieee80211_he_mcs_nss_supp he_mcs_nss_supp;
+	u8 ppe_thres[IEEE80211_HE_PPE_THRES_MAX_LEN];
+} __packed;
+
+/**
+ * struct qlink_tlv_iftype_data - data for QTN_TLV_ID_IFTYPE_DATA
+ *
+ * @n_iftype_data: number of entries in iftype_data.
+ * @iftype_data: interface type data entries.
+ */
+struct qlink_tlv_iftype_data {
+	struct qlink_tlv_hdr hdr;
+	u8 n_iftype_data;
+	u8 rsvd[3];
+	struct qlink_sband_iftype_data iftype_data[];
+} __packed;
+
+/**
+ * enum qlink_chan_stat - channel statistics bitmap
+ *
+ * Used to indicate which statistics values in &struct qlink_chan_stats
+ * are valid. Individual values are used to fill a bitmap carried in a
+ * payload of QTN_TLV_ID_BITMAP.
+ *
+ * @QLINK_CHAN_STAT_TIME_ON: time_on value is valid.
+ * @QLINK_CHAN_STAT_TIME_TX: time_tx value is valid.
+ * @QLINK_CHAN_STAT_TIME_RX: time_rx value is valid.
+ * @QLINK_CHAN_STAT_CCA_BUSY: cca_busy value is valid.
+ * @QLINK_CHAN_STAT_CCA_BUSY_EXT: cca_busy_ext value is valid.
+ * @QLINK_CHAN_STAT_TIME_SCAN: time_scan value is valid.
+ * @QLINK_CHAN_STAT_CHAN_NOISE: chan_noise value is valid.
+ */
+enum qlink_chan_stat {
+	QLINK_CHAN_STAT_TIME_ON,
+	QLINK_CHAN_STAT_TIME_TX,
+	QLINK_CHAN_STAT_TIME_RX,
+	QLINK_CHAN_STAT_CCA_BUSY,
+	QLINK_CHAN_STAT_CCA_BUSY_EXT,
+	QLINK_CHAN_STAT_TIME_SCAN,
+	QLINK_CHAN_STAT_CHAN_NOISE,
+	QLINK_CHAN_STAT_NUM,
+};
+
+/**
+ * struct qlink_chan_stats - data for QTN_TLV_ID_CHANNEL_STATS
+ *
+ * Carries a per-channel statistics. Not all fields may be filled with
+ * valid values. Valid fields should be indicated as such using a bitmap of
+ * &enum qlink_chan_stat. Bitmap is carried separately in a payload of
+ * QTN_TLV_ID_BITMAP.
+ *
+ * @time_on: amount of time radio operated on that channel.
+ * @time_tx: amount of time radio spent transmitting on the channel.
+ * @time_rx: amount of time radio spent receiving on the channel.
+ * @cca_busy: amount of time the primary channel was busy.
+ * @cca_busy_ext: amount of time the secondary channel was busy.
+ * @time_scan: amount of radio spent scanning on the channel.
+ * @chan_noise: channel noise.
+ */
+struct qlink_chan_stats {
+	__le64 time_on;
+	__le64 time_tx;
+	__le64 time_rx;
+	__le64 cca_busy;
+	__le64 cca_busy_ext;
+	__le64 time_scan;
+	s8 chan_noise;
+	u8 rsvd[3];
+} __packed;
+
+/**
+ * enum qlink_sta_info - station information bitmap
+ *
+ * Used to indicate which statistics values in &struct qlink_sta_stats
+ * are valid. Individual values are used to fill a bitmap carried in a
+ * payload of QTN_TLV_ID_BITMAP.
+ *
+ * @QLINK_STA_INFO_CONNECTED_TIME: connected_time value is valid.
+ * @QLINK_STA_INFO_INACTIVE_TIME: inactive_time value is valid.
+ * @QLINK_STA_INFO_RX_BYTES: lower 32 bits of rx_bytes value are valid.
+ * @QLINK_STA_INFO_TX_BYTES: lower 32 bits of tx_bytes value are valid.
+ * @QLINK_STA_INFO_RX_BYTES64: rx_bytes value is valid.
+ * @QLINK_STA_INFO_TX_BYTES64: tx_bytes value is valid.
+ * @QLINK_STA_INFO_RX_DROP_MISC: rx_dropped_misc value is valid.
+ * @QLINK_STA_INFO_BEACON_RX: rx_beacon value is valid.
+ * @QLINK_STA_INFO_SIGNAL: signal value is valid.
+ * @QLINK_STA_INFO_SIGNAL_AVG: signal_avg value is valid.
+ * @QLINK_STA_INFO_RX_BITRATE: rxrate value is valid.
+ * @QLINK_STA_INFO_TX_BITRATE: txrate value is valid.
+ * @QLINK_STA_INFO_RX_PACKETS: rx_packets value is valid.
+ * @QLINK_STA_INFO_TX_PACKETS: tx_packets value is valid.
+ * @QLINK_STA_INFO_TX_RETRIES: tx_retries value is valid.
+ * @QLINK_STA_INFO_TX_FAILED: tx_failed value is valid.
+ * @QLINK_STA_INFO_STA_FLAGS: sta_flags value is valid.
+ */
+enum qlink_sta_info {
+	QLINK_STA_INFO_CONNECTED_TIME,
+	QLINK_STA_INFO_INACTIVE_TIME,
+	QLINK_STA_INFO_RX_BYTES,
+	QLINK_STA_INFO_TX_BYTES,
+	QLINK_STA_INFO_RX_BYTES64,
+	QLINK_STA_INFO_TX_BYTES64,
+	QLINK_STA_INFO_RX_DROP_MISC,
+	QLINK_STA_INFO_BEACON_RX,
+	QLINK_STA_INFO_SIGNAL,
+	QLINK_STA_INFO_SIGNAL_AVG,
+	QLINK_STA_INFO_RX_BITRATE,
+	QLINK_STA_INFO_TX_BITRATE,
+	QLINK_STA_INFO_RX_PACKETS,
+	QLINK_STA_INFO_TX_PACKETS,
+	QLINK_STA_INFO_TX_RETRIES,
+	QLINK_STA_INFO_TX_FAILED,
+	QLINK_STA_INFO_STA_FLAGS,
+	QLINK_STA_INFO_NUM,
+};
+
+/**
+ * struct qlink_sta_info_rate - STA rate statistics
+ *
+ * @rate: data rate in Mbps.
+ * @flags: bitmap of &enum qlink_sta_info_rate_flags.
+ * @mcs: 802.11-defined MCS index.
+ * nss: Number of Spatial Streams.
+ * @bw: bandwidth, one of &enum qlink_channel_width.
+ */
+struct qlink_sta_info_rate {
+	__le16 rate;
+	u8 flags;
+	u8 mcs;
+	u8 nss;
+	u8 bw;
+} __packed;
+
+/**
+ * struct qlink_sta_stats - data for QTN_TLV_ID_STA_STATS
+ *
+ * Carries statistics of a STA. Not all fields may be filled with
+ * valid values. Valid fields should be indicated as such using a bitmap of
+ * &enum qlink_sta_info. Bitmap is carried separately in a payload of
+ * QTN_TLV_ID_BITMAP.
+ */
+struct qlink_sta_stats {
+	__le64 rx_bytes;
+	__le64 tx_bytes;
+	__le64 rx_beacon;
+	__le64 rx_duration;
+	__le64 t_offset;
+	__le32 connected_time;
+	__le32 inactive_time;
+	__le32 rx_packets;
+	__le32 tx_packets;
+	__le32 tx_retries;
+	__le32 tx_failed;
+	__le32 rx_dropped_misc;
+	__le32 beacon_loss_count;
+	__le32 expected_throughput;
+	struct qlink_sta_info_state sta_flags;
+	struct qlink_sta_info_rate txrate;
+	struct qlink_sta_info_rate rxrate;
+	__le16 llid;
+	__le16 plid;
+	u8 local_pm;
+	u8 peer_pm;
+	u8 nonpeer_pm;
+	u8 rx_beacon_signal_avg;
+	u8 plink_state;
+	u8 signal;
+	u8 signal_avg;
+	u8 rsvd[1];
+};
+
+/**
+ * struct qlink_random_mac_addr - data for QTN_TLV_ID_RANDOM_MAC_ADDR TLV
+ *
+ * Specifies MAC address mask/value for generation random MAC address
+ * during scan.
+ *
+ * @mac_addr: MAC address used with randomisation
+ * @mac_addr_mask: MAC address mask used with randomisation, bits that
+ *	are 0 in the mask should be randomised, bits that are 1 should
+ *	be taken from the @mac_addr
+ */
+struct qlink_random_mac_addr {
+	u8 mac_addr[ETH_ALEN];
+	u8 mac_addr_mask[ETH_ALEN];
+} __packed;
+
+/**
+ * struct qlink_wowlan_capab_data - data for QTN_TLV_ID_WOWLAN_CAPAB TLV
+ *
+ * WoWLAN capabilities supported by cards.
+ *
+ * @version: version of WoWLAN data structure, to ensure backward
+ *	compatibility for firmwares with limited WoWLAN support
+ * @len: Total length of WoWLAN data
+ * @data: supported WoWLAN features
+ */
+struct qlink_wowlan_capab_data {
+	__le16 version;
+	__le16 len;
+	u8 data[];
+} __packed;
+
+/**
+ * struct qlink_wowlan_support - supported WoWLAN capabilities
+ *
+ * @n_patterns: number of supported wakeup patterns
+ * @pattern_max_len: maximum length of each pattern
+ * @pattern_min_len: minimum length of each pattern
+ */
+struct qlink_wowlan_support {
+	__le32 n_patterns;
+	__le32 pattern_max_len;
+	__le32 pattern_min_len;
+} __packed;
+
+#endif /* _QTN_QLINK_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c
new file mode 100644
index 0000000000..30b60d6ae5
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c
@@ -0,0 +1,303 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include <linux/nl80211.h>
+
+#include "qlink_util.h"
+
+u16 qlink_iface_type_to_nl_mask(u16 qlink_type)
+{
+	u16 result = 0;
+
+	switch (qlink_type) {
+	case QLINK_IFTYPE_AP:
+		result |= BIT(NL80211_IFTYPE_AP);
+		break;
+	case QLINK_IFTYPE_STATION:
+		result |= BIT(NL80211_IFTYPE_STATION);
+		break;
+	case QLINK_IFTYPE_ADHOC:
+		result |= BIT(NL80211_IFTYPE_ADHOC);
+		break;
+	case QLINK_IFTYPE_MONITOR:
+		result |= BIT(NL80211_IFTYPE_MONITOR);
+		break;
+	case QLINK_IFTYPE_WDS:
+		result |= BIT(NL80211_IFTYPE_WDS);
+		break;
+	case QLINK_IFTYPE_AP_VLAN:
+		result |= BIT(NL80211_IFTYPE_AP_VLAN);
+		break;
+	}
+
+	return result;
+}
+
+u8 qlink_chan_width_mask_to_nl(u16 qlink_mask)
+{
+	u8 result = 0;
+
+	if (qlink_mask & BIT(QLINK_CHAN_WIDTH_5))
+		result |= BIT(NL80211_CHAN_WIDTH_5);
+
+	if (qlink_mask & BIT(QLINK_CHAN_WIDTH_10))
+		result |= BIT(NL80211_CHAN_WIDTH_10);
+
+	if (qlink_mask & BIT(QLINK_CHAN_WIDTH_20_NOHT))
+		result |= BIT(NL80211_CHAN_WIDTH_20_NOHT);
+
+	if (qlink_mask & BIT(QLINK_CHAN_WIDTH_20))
+		result |= BIT(NL80211_CHAN_WIDTH_20);
+
+	if (qlink_mask & BIT(QLINK_CHAN_WIDTH_40))
+		result |= BIT(NL80211_CHAN_WIDTH_40);
+
+	if (qlink_mask & BIT(QLINK_CHAN_WIDTH_80))
+		result |= BIT(NL80211_CHAN_WIDTH_80);
+
+	if (qlink_mask & BIT(QLINK_CHAN_WIDTH_80P80))
+		result |= BIT(NL80211_CHAN_WIDTH_80P80);
+
+	if (qlink_mask & BIT(QLINK_CHAN_WIDTH_160))
+		result |= BIT(NL80211_CHAN_WIDTH_160);
+
+	return result;
+}
+
+static enum nl80211_chan_width qlink_chanwidth_to_nl(u8 qlw)
+{
+	switch (qlw) {
+	case QLINK_CHAN_WIDTH_20_NOHT:
+		return NL80211_CHAN_WIDTH_20_NOHT;
+	case QLINK_CHAN_WIDTH_20:
+		return NL80211_CHAN_WIDTH_20;
+	case QLINK_CHAN_WIDTH_40:
+		return NL80211_CHAN_WIDTH_40;
+	case QLINK_CHAN_WIDTH_80:
+		return NL80211_CHAN_WIDTH_80;
+	case QLINK_CHAN_WIDTH_80P80:
+		return NL80211_CHAN_WIDTH_80P80;
+	case QLINK_CHAN_WIDTH_160:
+		return NL80211_CHAN_WIDTH_160;
+	case QLINK_CHAN_WIDTH_5:
+		return NL80211_CHAN_WIDTH_5;
+	case QLINK_CHAN_WIDTH_10:
+		return NL80211_CHAN_WIDTH_10;
+	default:
+		return -1;
+	}
+}
+
+static u8 qlink_chanwidth_nl_to_qlink(enum nl80211_chan_width nlwidth)
+{
+	switch (nlwidth) {
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		return QLINK_CHAN_WIDTH_20_NOHT;
+	case NL80211_CHAN_WIDTH_20:
+		return QLINK_CHAN_WIDTH_20;
+	case NL80211_CHAN_WIDTH_40:
+		return QLINK_CHAN_WIDTH_40;
+	case NL80211_CHAN_WIDTH_80:
+		return QLINK_CHAN_WIDTH_80;
+	case NL80211_CHAN_WIDTH_80P80:
+		return QLINK_CHAN_WIDTH_80P80;
+	case NL80211_CHAN_WIDTH_160:
+		return QLINK_CHAN_WIDTH_160;
+	case NL80211_CHAN_WIDTH_5:
+		return QLINK_CHAN_WIDTH_5;
+	case NL80211_CHAN_WIDTH_10:
+		return QLINK_CHAN_WIDTH_10;
+	default:
+		return -1;
+	}
+}
+
+void qlink_chandef_q2cfg(struct wiphy *wiphy,
+			 const struct qlink_chandef *qch,
+			 struct cfg80211_chan_def *chdef)
+{
+	struct ieee80211_channel *chan;
+
+	chan = ieee80211_get_channel(wiphy, le16_to_cpu(qch->chan.center_freq));
+
+	chdef->chan = chan;
+	chdef->center_freq1 = le16_to_cpu(qch->center_freq1);
+	chdef->center_freq2 = le16_to_cpu(qch->center_freq2);
+	chdef->width = qlink_chanwidth_to_nl(qch->width);
+	chdef->edmg.bw_config = 0;
+	chdef->edmg.channels = 0;
+}
+
+void qlink_chandef_cfg2q(const struct cfg80211_chan_def *chdef,
+			 struct qlink_chandef *qch)
+{
+	struct ieee80211_channel *chan = chdef->chan;
+
+	qch->chan.hw_value = cpu_to_le16(chan->hw_value);
+	qch->chan.center_freq = cpu_to_le16(chan->center_freq);
+	qch->chan.flags = cpu_to_le32(chan->flags);
+
+	qch->center_freq1 = cpu_to_le16(chdef->center_freq1);
+	qch->center_freq2 = cpu_to_le16(chdef->center_freq2);
+	qch->width = qlink_chanwidth_nl_to_qlink(chdef->width);
+}
+
+enum qlink_hidden_ssid qlink_hidden_ssid_nl2q(enum nl80211_hidden_ssid nl_val)
+{
+	switch (nl_val) {
+	case NL80211_HIDDEN_SSID_ZERO_LEN:
+		return QLINK_HIDDEN_SSID_ZERO_LEN;
+	case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
+		return QLINK_HIDDEN_SSID_ZERO_CONTENTS;
+	case NL80211_HIDDEN_SSID_NOT_IN_USE:
+	default:
+		return QLINK_HIDDEN_SSID_NOT_IN_USE;
+	}
+}
+
+bool qtnf_utils_is_bit_set(const u8 *arr, unsigned int bit,
+			   unsigned int arr_max_len)
+{
+	unsigned int idx = bit / BITS_PER_BYTE;
+	u8 mask = 1 << (bit - (idx * BITS_PER_BYTE));
+
+	if (idx >= arr_max_len)
+		return false;
+
+	return arr[idx] & mask;
+}
+
+void qlink_acl_data_cfg2q(const struct cfg80211_acl_data *acl,
+			  struct qlink_acl_data *qacl)
+{
+	switch (acl->acl_policy) {
+	case NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED:
+		qacl->policy =
+			cpu_to_le32(QLINK_ACL_POLICY_ACCEPT_UNLESS_LISTED);
+		break;
+	case NL80211_ACL_POLICY_DENY_UNLESS_LISTED:
+		qacl->policy = cpu_to_le32(QLINK_ACL_POLICY_DENY_UNLESS_LISTED);
+		break;
+	}
+
+	qacl->num_entries = cpu_to_le32(acl->n_acl_entries);
+	memcpy(qacl->mac_addrs, acl->mac_addrs,
+	       acl->n_acl_entries * sizeof(*qacl->mac_addrs));
+}
+
+enum qlink_band qlink_utils_band_cfg2q(enum nl80211_band band)
+{
+	switch (band) {
+	case NL80211_BAND_2GHZ:
+		return QLINK_BAND_2GHZ;
+	case NL80211_BAND_5GHZ:
+		return QLINK_BAND_5GHZ;
+	case NL80211_BAND_60GHZ:
+		return QLINK_BAND_60GHZ;
+	default:
+		return -EINVAL;
+	}
+}
+
+enum qlink_dfs_state qlink_utils_dfs_state_cfg2q(enum nl80211_dfs_state state)
+{
+	switch (state) {
+	case NL80211_DFS_USABLE:
+		return QLINK_DFS_USABLE;
+	case NL80211_DFS_AVAILABLE:
+		return QLINK_DFS_AVAILABLE;
+	case NL80211_DFS_UNAVAILABLE:
+	default:
+		return QLINK_DFS_UNAVAILABLE;
+	}
+}
+
+u32 qlink_utils_chflags_cfg2q(u32 cfgflags)
+{
+	u32 flags = 0;
+
+	if (cfgflags & IEEE80211_CHAN_DISABLED)
+		flags |= QLINK_CHAN_DISABLED;
+
+	if (cfgflags & IEEE80211_CHAN_NO_IR)
+		flags |= QLINK_CHAN_NO_IR;
+
+	if (cfgflags & IEEE80211_CHAN_RADAR)
+		flags |= QLINK_CHAN_RADAR;
+
+	if (cfgflags & IEEE80211_CHAN_NO_HT40PLUS)
+		flags |= QLINK_CHAN_NO_HT40PLUS;
+
+	if (cfgflags & IEEE80211_CHAN_NO_HT40MINUS)
+		flags |= QLINK_CHAN_NO_HT40MINUS;
+
+	if (cfgflags & IEEE80211_CHAN_NO_80MHZ)
+		flags |= QLINK_CHAN_NO_80MHZ;
+
+	if (cfgflags & IEEE80211_CHAN_NO_160MHZ)
+		flags |= QLINK_CHAN_NO_160MHZ;
+
+	return flags;
+}
+
+static u32 qtnf_reg_rule_flags_parse(u32 qflags)
+{
+	u32 flags = 0;
+
+	if (qflags & QLINK_RRF_NO_OFDM)
+		flags |= NL80211_RRF_NO_OFDM;
+
+	if (qflags & QLINK_RRF_NO_CCK)
+		flags |= NL80211_RRF_NO_CCK;
+
+	if (qflags & QLINK_RRF_NO_INDOOR)
+		flags |= NL80211_RRF_NO_INDOOR;
+
+	if (qflags & QLINK_RRF_NO_OUTDOOR)
+		flags |= NL80211_RRF_NO_OUTDOOR;
+
+	if (qflags & QLINK_RRF_DFS)
+		flags |= NL80211_RRF_DFS;
+
+	if (qflags & QLINK_RRF_PTP_ONLY)
+		flags |= NL80211_RRF_PTP_ONLY;
+
+	if (qflags & QLINK_RRF_PTMP_ONLY)
+		flags |= NL80211_RRF_PTMP_ONLY;
+
+	if (qflags & QLINK_RRF_NO_IR)
+		flags |= NL80211_RRF_NO_IR;
+
+	if (qflags & QLINK_RRF_AUTO_BW)
+		flags |= NL80211_RRF_AUTO_BW;
+
+	if (qflags & QLINK_RRF_IR_CONCURRENT)
+		flags |= NL80211_RRF_IR_CONCURRENT;
+
+	if (qflags & QLINK_RRF_NO_HT40MINUS)
+		flags |= NL80211_RRF_NO_HT40MINUS;
+
+	if (qflags & QLINK_RRF_NO_HT40PLUS)
+		flags |= NL80211_RRF_NO_HT40PLUS;
+
+	if (qflags & QLINK_RRF_NO_80MHZ)
+		flags |= NL80211_RRF_NO_80MHZ;
+
+	if (qflags & QLINK_RRF_NO_160MHZ)
+		flags |= NL80211_RRF_NO_160MHZ;
+
+	return flags;
+}
+
+void qlink_utils_regrule_q2nl(struct ieee80211_reg_rule *rule,
+			      const struct qlink_tlv_reg_rule *tlv)
+{
+	rule->freq_range.start_freq_khz = le32_to_cpu(tlv->start_freq_khz);
+	rule->freq_range.end_freq_khz = le32_to_cpu(tlv->end_freq_khz);
+	rule->freq_range.max_bandwidth_khz =
+		le32_to_cpu(tlv->max_bandwidth_khz);
+	rule->power_rule.max_antenna_gain = le32_to_cpu(tlv->max_antenna_gain);
+	rule->power_rule.max_eirp = le32_to_cpu(tlv->max_eirp);
+	rule->dfs_cac_ms = le32_to_cpu(tlv->dfs_cac_ms);
+	rule->flags = qtnf_reg_rule_flags_parse(le32_to_cpu(tlv->flags));
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h
new file mode 100644
index 0000000000..230a10a41c
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_FMAC_QLINK_UTIL_H_
+#define _QTN_FMAC_QLINK_UTIL_H_
+
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <net/cfg80211.h>
+
+#include "qlink.h"
+
+static inline void
+qtnf_cmd_skb_put_buffer(struct sk_buff *skb, const u8 *buf_src, size_t len)
+{
+	skb_put_data(skb, buf_src, len);
+}
+
+static inline void qtnf_cmd_skb_put_tlv_arr(struct sk_buff *skb,
+					    u16 tlv_id, const u8 arr[],
+					    size_t arr_len)
+{
+	struct qlink_tlv_hdr *hdr;
+
+	hdr = skb_put(skb, sizeof(*hdr) + round_up(arr_len, QLINK_ALIGN));
+	hdr->type = cpu_to_le16(tlv_id);
+	hdr->len = cpu_to_le16(arr_len);
+	memcpy(hdr->val, arr, arr_len);
+}
+
+static inline void qtnf_cmd_skb_put_tlv_u32(struct sk_buff *skb,
+					    u16 tlv_id, u32 value)
+{
+	struct qlink_tlv_hdr *hdr = skb_put(skb, sizeof(*hdr) + sizeof(value));
+	__le32 tmp = cpu_to_le32(value);
+
+	hdr->type = cpu_to_le16(tlv_id);
+	hdr->len = cpu_to_le16(sizeof(value));
+	memcpy(hdr->val, &tmp, sizeof(tmp));
+}
+
+u16 qlink_iface_type_to_nl_mask(u16 qlink_type);
+u8 qlink_chan_width_mask_to_nl(u16 qlink_mask);
+void qlink_chandef_q2cfg(struct wiphy *wiphy,
+			 const struct qlink_chandef *qch,
+			 struct cfg80211_chan_def *chdef);
+void qlink_chandef_cfg2q(const struct cfg80211_chan_def *chdef,
+			 struct qlink_chandef *qch);
+enum qlink_hidden_ssid qlink_hidden_ssid_nl2q(enum nl80211_hidden_ssid nl_val);
+bool qtnf_utils_is_bit_set(const u8 *arr, unsigned int bit,
+			   unsigned int arr_max_len);
+void qlink_acl_data_cfg2q(const struct cfg80211_acl_data *acl,
+			  struct qlink_acl_data *qacl);
+enum qlink_band qlink_utils_band_cfg2q(enum nl80211_band band);
+enum qlink_dfs_state qlink_utils_dfs_state_cfg2q(enum nl80211_dfs_state state);
+u32 qlink_utils_chflags_cfg2q(u32 cfgflags);
+void qlink_utils_regrule_q2nl(struct ieee80211_reg_rule *rule,
+			      const struct qlink_tlv_reg_rule *tlv_rule);
+
+#define qlink_for_each_tlv(_tlv, _start, _datalen)			\
+	for (_tlv = (const struct qlink_tlv_hdr *)(_start);		\
+	     (const u8 *)(_start) + (_datalen) - (const u8 *)_tlv >=	\
+		(int)sizeof(*_tlv) &&					\
+	     (const u8 *)(_start) + (_datalen) - (const u8 *)_tlv >=	\
+		(int)sizeof(*_tlv) + le16_to_cpu(_tlv->len);		\
+	     _tlv = (const struct qlink_tlv_hdr *)(_tlv->val +		\
+		round_up(le16_to_cpu(_tlv->len), QLINK_ALIGN)))
+
+#define qlink_tlv_parsing_ok(_tlv_last, _start, _datalen)	\
+	((const u8 *)(_tlv_last) == \
+		(const u8 *)(_start) + round_up(_datalen, QLINK_ALIGN))
+
+#endif /* _QTN_FMAC_QLINK_UTIL_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h b/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h
new file mode 100644
index 0000000000..82d879950b
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef	_QTN_HW_IDS_H_
+#define	_QTN_HW_IDS_H_
+
+#include <linux/pci_ids.h>
+
+#define PCIE_VENDOR_ID_QUANTENNA	(0x1bb5)
+
+/* PCIE Device IDs */
+
+#define	PCIE_DEVICE_ID_QSR		(0x0008)
+
+#define QTN_REG_SYS_CTRL_CSR		0x14
+#define QTN_CHIP_ID_MASK		0xF0
+#define QTN_CHIP_ID_TOPAZ		0x40
+#define QTN_CHIP_ID_PEARL		0x50
+#define QTN_CHIP_ID_PEARL_B		0x60
+#define QTN_CHIP_ID_PEARL_C		0x70
+
+/* FW names */
+
+#define QTN_PCI_PEARL_FW_NAME		"qtn/fmac_qsr10g.img"
+#define QTN_PCI_TOPAZ_FW_NAME		"qtn/fmac_qsr1000.img"
+#define QTN_PCI_TOPAZ_BOOTLD_NAME	"qtn/uboot_qsr1000.img"
+
+static inline unsigned int qtnf_chip_id_get(const void __iomem *regs_base)
+{
+	u32 board_rev = readl(regs_base + QTN_REG_SYS_CTRL_CSR);
+
+	return board_rev & QTN_CHIP_ID_MASK;
+}
+
+#endif	/* _QTN_HW_IDS_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c
new file mode 100644
index 0000000000..ff678951d3
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include <linux/types.h>
+#include <linux/io.h>
+
+#include "shm_ipc.h"
+
+#undef pr_fmt
+#define pr_fmt(fmt)	"qtnfmac shm_ipc: %s: " fmt, __func__
+
+static bool qtnf_shm_ipc_has_new_data(struct qtnf_shm_ipc *ipc)
+{
+	const u32 flags = readl(&ipc->shm_region->headroom.hdr.flags);
+
+	return (flags & QTNF_SHM_IPC_NEW_DATA);
+}
+
+static void qtnf_shm_handle_new_data(struct qtnf_shm_ipc *ipc)
+{
+	size_t size;
+	bool rx_buff_ok = true;
+	struct qtnf_shm_ipc_region_header __iomem *shm_reg_hdr;
+
+	shm_reg_hdr = &ipc->shm_region->headroom.hdr;
+
+	size = readw(&shm_reg_hdr->data_len);
+
+	if (unlikely(size == 0 || size > QTN_IPC_MAX_DATA_SZ)) {
+		pr_err("wrong rx packet size: %zu\n", size);
+		rx_buff_ok = false;
+	}
+
+	if (likely(rx_buff_ok)) {
+		ipc->rx_packet_count++;
+		ipc->rx_callback.fn(ipc->rx_callback.arg,
+				    ipc->shm_region->data, size);
+	}
+
+	writel(QTNF_SHM_IPC_ACK, &shm_reg_hdr->flags);
+	readl(&shm_reg_hdr->flags); /* flush PCIe write */
+
+	ipc->interrupt.fn(ipc->interrupt.arg);
+}
+
+static void qtnf_shm_ipc_irq_work(struct work_struct *work)
+{
+	struct qtnf_shm_ipc *ipc = container_of(work, struct qtnf_shm_ipc,
+						irq_work);
+
+	while (qtnf_shm_ipc_has_new_data(ipc))
+		qtnf_shm_handle_new_data(ipc);
+}
+
+static void qtnf_shm_ipc_irq_inbound_handler(struct qtnf_shm_ipc *ipc)
+{
+	u32 flags;
+
+	flags = readl(&ipc->shm_region->headroom.hdr.flags);
+
+	if (flags & QTNF_SHM_IPC_NEW_DATA)
+		queue_work(ipc->workqueue, &ipc->irq_work);
+}
+
+static void qtnf_shm_ipc_irq_outbound_handler(struct qtnf_shm_ipc *ipc)
+{
+	u32 flags;
+
+	if (!READ_ONCE(ipc->waiting_for_ack))
+		return;
+
+	flags = readl(&ipc->shm_region->headroom.hdr.flags);
+
+	if (flags & QTNF_SHM_IPC_ACK) {
+		WRITE_ONCE(ipc->waiting_for_ack, 0);
+		complete(&ipc->tx_completion);
+	}
+}
+
+int qtnf_shm_ipc_init(struct qtnf_shm_ipc *ipc,
+		      enum qtnf_shm_ipc_direction direction,
+		      struct qtnf_shm_ipc_region __iomem *shm_region,
+		      struct workqueue_struct *workqueue,
+		      const struct qtnf_shm_ipc_int *interrupt,
+		      const struct qtnf_shm_ipc_rx_callback *rx_callback)
+{
+	BUILD_BUG_ON(offsetof(struct qtnf_shm_ipc_region, data) !=
+		     QTN_IPC_REG_HDR_SZ);
+	BUILD_BUG_ON(sizeof(struct qtnf_shm_ipc_region) > QTN_IPC_REG_SZ);
+
+	ipc->shm_region = shm_region;
+	ipc->direction = direction;
+	ipc->interrupt = *interrupt;
+	ipc->rx_callback = *rx_callback;
+	ipc->tx_packet_count = 0;
+	ipc->rx_packet_count = 0;
+	ipc->workqueue = workqueue;
+	ipc->waiting_for_ack = 0;
+	ipc->tx_timeout_count = 0;
+
+	switch (direction) {
+	case QTNF_SHM_IPC_OUTBOUND:
+		ipc->irq_handler = qtnf_shm_ipc_irq_outbound_handler;
+		break;
+	case QTNF_SHM_IPC_INBOUND:
+		ipc->irq_handler = qtnf_shm_ipc_irq_inbound_handler;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	INIT_WORK(&ipc->irq_work, qtnf_shm_ipc_irq_work);
+	init_completion(&ipc->tx_completion);
+
+	return 0;
+}
+
+void qtnf_shm_ipc_free(struct qtnf_shm_ipc *ipc)
+{
+	complete_all(&ipc->tx_completion);
+}
+
+int qtnf_shm_ipc_send(struct qtnf_shm_ipc *ipc, const u8 *buf, size_t size)
+{
+	int ret = 0;
+	struct qtnf_shm_ipc_region_header __iomem *shm_reg_hdr;
+
+	shm_reg_hdr = &ipc->shm_region->headroom.hdr;
+
+	if (unlikely(size > QTN_IPC_MAX_DATA_SZ))
+		return -E2BIG;
+
+	ipc->tx_packet_count++;
+
+	writew(size, &shm_reg_hdr->data_len);
+	memcpy_toio(ipc->shm_region->data, buf, size);
+
+	/* sync previous writes before proceeding */
+	dma_wmb();
+
+	WRITE_ONCE(ipc->waiting_for_ack, 1);
+
+	/* sync previous memory write before announcing new data ready */
+	wmb();
+
+	writel(QTNF_SHM_IPC_NEW_DATA, &shm_reg_hdr->flags);
+	readl(&shm_reg_hdr->flags); /* flush PCIe write */
+
+	ipc->interrupt.fn(ipc->interrupt.arg);
+
+	if (!wait_for_completion_timeout(&ipc->tx_completion,
+					 QTN_SHM_IPC_ACK_TIMEOUT)) {
+		ret = -ETIMEDOUT;
+		ipc->tx_timeout_count++;
+		pr_err("TX ACK timeout\n");
+	}
+
+	/* now we're not waiting for ACK even in case of timeout */
+	WRITE_ONCE(ipc->waiting_for_ack, 0);
+
+	return ret;
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h
new file mode 100644
index 0000000000..52cac5439b
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_FMAC_SHM_IPC_H_
+#define _QTN_FMAC_SHM_IPC_H_
+
+#include <linux/workqueue.h>
+#include <linux/completion.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+
+#include "shm_ipc_defs.h"
+
+#define QTN_SHM_IPC_ACK_TIMEOUT		(2 * HZ)
+
+struct qtnf_shm_ipc_int {
+	void (*fn)(void *arg);
+	void *arg;
+};
+
+struct qtnf_shm_ipc_rx_callback {
+	void (*fn)(void *arg, const u8 __iomem *buf, size_t len);
+	void *arg;
+};
+
+enum qtnf_shm_ipc_direction {
+	QTNF_SHM_IPC_OUTBOUND		= BIT(0),
+	QTNF_SHM_IPC_INBOUND		= BIT(1),
+};
+
+struct qtnf_shm_ipc {
+	struct qtnf_shm_ipc_region __iomem *shm_region;
+	enum qtnf_shm_ipc_direction direction;
+	size_t tx_packet_count;
+	size_t rx_packet_count;
+
+	size_t tx_timeout_count;
+
+	u8 waiting_for_ack;
+
+	struct qtnf_shm_ipc_int interrupt;
+	struct qtnf_shm_ipc_rx_callback rx_callback;
+
+	void (*irq_handler)(struct qtnf_shm_ipc *ipc);
+
+	struct workqueue_struct *workqueue;
+	struct work_struct irq_work;
+	struct completion tx_completion;
+};
+
+int qtnf_shm_ipc_init(struct qtnf_shm_ipc *ipc,
+		      enum qtnf_shm_ipc_direction direction,
+		      struct qtnf_shm_ipc_region __iomem *shm_region,
+		      struct workqueue_struct *workqueue,
+		      const struct qtnf_shm_ipc_int *interrupt,
+		      const struct qtnf_shm_ipc_rx_callback *rx_callback);
+void qtnf_shm_ipc_free(struct qtnf_shm_ipc *ipc);
+int qtnf_shm_ipc_send(struct qtnf_shm_ipc *ipc, const u8 *buf, size_t size);
+
+static inline void qtnf_shm_ipc_irq_handler(struct qtnf_shm_ipc *ipc)
+{
+	ipc->irq_handler(ipc);
+}
+
+#endif /* _QTN_FMAC_SHM_IPC_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h
new file mode 100644
index 0000000000..78be70df12
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_FMAC_SHM_IPC_DEFS_H_
+#define _QTN_FMAC_SHM_IPC_DEFS_H_
+
+#include <linux/types.h>
+
+#define QTN_IPC_REG_HDR_SZ	(32)
+#define QTN_IPC_REG_SZ		(4096)
+#define QTN_IPC_MAX_DATA_SZ	(QTN_IPC_REG_SZ - QTN_IPC_REG_HDR_SZ)
+
+enum qtnf_shm_ipc_region_flags {
+	QTNF_SHM_IPC_NEW_DATA		= BIT(0),
+	QTNF_SHM_IPC_ACK		= BIT(1),
+};
+
+struct qtnf_shm_ipc_region_header {
+	__le32 flags;
+	__le16 data_len;
+} __packed;
+
+union qtnf_shm_ipc_region_headroom {
+	struct qtnf_shm_ipc_region_header hdr;
+	u8 headroom[QTN_IPC_REG_HDR_SZ];
+} __packed;
+
+struct qtnf_shm_ipc_region {
+	union qtnf_shm_ipc_region_headroom headroom;
+	u8 data[QTN_IPC_MAX_DATA_SZ];
+} __packed;
+
+#endif /* _QTN_FMAC_SHM_IPC_DEFS_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/switchdev.h b/drivers/net/wireless/quantenna/qtnfmac/switchdev.h
new file mode 100644
index 0000000000..b962e670c4
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/switchdev.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2019 Quantenna Communications. All rights reserved. */
+
+#ifndef QTNFMAC_SWITCHDEV_H_
+#define QTNFMAC_SWITCHDEV_H_
+
+#include <linux/skbuff.h>
+
+#ifdef CONFIG_NET_SWITCHDEV
+
+static inline void qtnfmac_switch_mark_skb_flooded(struct sk_buff *skb)
+{
+	skb->offload_fwd_mark = 1;
+}
+
+#else
+
+static inline void qtnfmac_switch_mark_skb_flooded(struct sk_buff *skb)
+{
+}
+
+#endif
+
+#endif /* QTNFMAC_SWITCHDEV_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/trans.c b/drivers/net/wireless/quantenna/qtnfmac/trans.c
new file mode 100644
index 0000000000..95356e280e
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/trans.c
@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include <linux/types.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+
+#include "core.h"
+#include "commands.h"
+#include "event.h"
+#include "bus.h"
+
+#define QTNF_DEF_SYNC_CMD_TIMEOUT	(5 * HZ)
+
+int qtnf_trans_send_cmd_with_resp(struct qtnf_bus *bus, struct sk_buff *cmd_skb,
+				  struct sk_buff **response_skb)
+{
+	struct qtnf_cmd_ctl_node *ctl_node = &bus->trans.curr_cmd;
+	struct qlink_cmd *cmd = (void *)cmd_skb->data;
+	int ret = 0;
+	long status;
+	bool resp_not_handled = true;
+	struct sk_buff *resp_skb = NULL;
+
+	if (unlikely(!response_skb)) {
+		dev_kfree_skb(cmd_skb);
+		return -EFAULT;
+	}
+
+	spin_lock(&ctl_node->resp_lock);
+	ctl_node->seq_num++;
+	cmd->seq_num = cpu_to_le16(ctl_node->seq_num);
+	WARN(ctl_node->resp_skb, "qtnfmac: response skb not empty\n");
+	ctl_node->waiting_for_resp = true;
+	spin_unlock(&ctl_node->resp_lock);
+
+	ret = qtnf_bus_control_tx(bus, cmd_skb);
+	dev_kfree_skb(cmd_skb);
+
+	if (unlikely(ret))
+		goto out;
+
+	status = wait_for_completion_interruptible_timeout(
+						&ctl_node->cmd_resp_completion,
+						QTNF_DEF_SYNC_CMD_TIMEOUT);
+
+	spin_lock(&ctl_node->resp_lock);
+	resp_not_handled = ctl_node->waiting_for_resp;
+	resp_skb = ctl_node->resp_skb;
+	ctl_node->resp_skb = NULL;
+	ctl_node->waiting_for_resp = false;
+	spin_unlock(&ctl_node->resp_lock);
+
+	if (unlikely(status <= 0)) {
+		if (status == 0) {
+			ret = -ETIMEDOUT;
+			pr_err("response timeout\n");
+		} else {
+			ret = -EINTR;
+			pr_debug("interrupted\n");
+		}
+	}
+
+	if (unlikely(!resp_skb || resp_not_handled)) {
+		if (!ret)
+			ret = -EFAULT;
+
+		goto out;
+	}
+
+	ret = 0;
+	*response_skb = resp_skb;
+
+out:
+	if (unlikely(resp_skb && resp_not_handled))
+		dev_kfree_skb(resp_skb);
+
+	return ret;
+}
+
+static void qtnf_trans_signal_cmdresp(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	struct qtnf_cmd_ctl_node *ctl_node = &bus->trans.curr_cmd;
+	const struct qlink_resp *resp = (const struct qlink_resp *)skb->data;
+	const u16 recvd_seq_num = le16_to_cpu(resp->seq_num);
+
+	spin_lock(&ctl_node->resp_lock);
+
+	if (unlikely(!ctl_node->waiting_for_resp)) {
+		pr_err("unexpected response\n");
+		goto out_err;
+	}
+
+	if (unlikely(recvd_seq_num != ctl_node->seq_num)) {
+		pr_err("seq num mismatch\n");
+		goto out_err;
+	}
+
+	ctl_node->resp_skb = skb;
+	ctl_node->waiting_for_resp = false;
+
+	spin_unlock(&ctl_node->resp_lock);
+
+	complete(&ctl_node->cmd_resp_completion);
+	return;
+
+out_err:
+	spin_unlock(&ctl_node->resp_lock);
+	dev_kfree_skb(skb);
+}
+
+static int qtnf_trans_event_enqueue(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	struct qtnf_qlink_transport *trans = &bus->trans;
+
+	if (likely(skb_queue_len(&trans->event_queue) <
+		   trans->event_queue_max_len)) {
+		skb_queue_tail(&trans->event_queue, skb);
+		queue_work(bus->workqueue, &bus->event_work);
+	} else {
+		pr_warn("event dropped due to queue overflow\n");
+		dev_kfree_skb(skb);
+		return -1;
+	}
+
+	return 0;
+}
+
+void qtnf_trans_init(struct qtnf_bus *bus)
+{
+	struct qtnf_qlink_transport *trans = &bus->trans;
+
+	init_completion(&trans->curr_cmd.cmd_resp_completion);
+	spin_lock_init(&trans->curr_cmd.resp_lock);
+
+	spin_lock(&trans->curr_cmd.resp_lock);
+	trans->curr_cmd.seq_num = 0;
+	trans->curr_cmd.waiting_for_resp = false;
+	trans->curr_cmd.resp_skb = NULL;
+	spin_unlock(&trans->curr_cmd.resp_lock);
+
+	/* Init event handling related fields */
+	skb_queue_head_init(&trans->event_queue);
+	trans->event_queue_max_len = QTNF_MAX_EVENT_QUEUE_LEN;
+}
+
+static void qtnf_trans_free_events(struct qtnf_bus *bus)
+{
+	struct sk_buff_head *event_queue = &bus->trans.event_queue;
+	struct sk_buff *current_event_skb = skb_dequeue(event_queue);
+
+	while (current_event_skb) {
+		dev_kfree_skb_any(current_event_skb);
+		current_event_skb = skb_dequeue(event_queue);
+	}
+}
+
+void qtnf_trans_free(struct qtnf_bus *bus)
+{
+	if (!bus) {
+		pr_err("invalid bus pointer\n");
+		return;
+	}
+
+	qtnf_trans_free_events(bus);
+}
+
+int qtnf_trans_handle_rx_ctl_packet(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	const struct qlink_msg_header *header = (void *)skb->data;
+	int ret = -1;
+
+	if (unlikely(skb->len < sizeof(*header))) {
+		pr_warn("packet is too small: %u\n", skb->len);
+		dev_kfree_skb(skb);
+		return -EINVAL;
+	}
+
+	if (unlikely(skb->len != le16_to_cpu(header->len))) {
+		pr_warn("cmd reply length mismatch: %u != %u\n",
+			skb->len, le16_to_cpu(header->len));
+		dev_kfree_skb(skb);
+		return -EFAULT;
+	}
+
+	switch (le16_to_cpu(header->type)) {
+	case QLINK_MSG_TYPE_CMDRSP:
+		if (unlikely(skb->len < sizeof(struct qlink_cmd))) {
+			pr_warn("cmd reply too short: %u\n", skb->len);
+			dev_kfree_skb(skb);
+			break;
+		}
+
+		qtnf_trans_signal_cmdresp(bus, skb);
+		break;
+	case QLINK_MSG_TYPE_EVENT:
+		if (unlikely(skb->len < sizeof(struct qlink_event))) {
+			pr_warn("event too short: %u\n", skb->len);
+			dev_kfree_skb(skb);
+			break;
+		}
+
+		ret = qtnf_trans_event_enqueue(bus, skb);
+		break;
+	default:
+		pr_warn("unknown packet type: %x\n", le16_to_cpu(header->type));
+		dev_kfree_skb(skb);
+		break;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(qtnf_trans_handle_rx_ctl_packet);
diff --git a/drivers/net/wireless/quantenna/qtnfmac/trans.h b/drivers/net/wireless/quantenna/qtnfmac/trans.h
new file mode 100644
index 0000000000..c0b76f871b
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/trans.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#ifndef _QTN_FMAC_TRANS_H_
+#define _QTN_FMAC_TRANS_H_
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/mutex.h>
+
+#include "qlink.h"
+
+#define QTNF_CMD_FLAG_RESP_REQ		BIT(0)
+
+#define QTNF_MAX_CMD_BUF_SIZE	2048
+#define QTNF_DEF_CMD_HROOM	4
+
+struct qtnf_bus;
+
+struct qtnf_cmd_ctl_node {
+	struct completion cmd_resp_completion;
+	struct sk_buff *resp_skb;
+	u16 seq_num;
+	bool waiting_for_resp;
+	spinlock_t resp_lock; /* lock for resp_skb & waiting_for_resp changes */
+};
+
+struct qtnf_qlink_transport {
+	struct qtnf_cmd_ctl_node curr_cmd;
+	struct sk_buff_head event_queue;
+	size_t event_queue_max_len;
+};
+
+void qtnf_trans_init(struct qtnf_bus *bus);
+void qtnf_trans_free(struct qtnf_bus *bus);
+
+int qtnf_trans_send_next_cmd(struct qtnf_bus *bus);
+int qtnf_trans_handle_rx_ctl_packet(struct qtnf_bus *bus, struct sk_buff *skb);
+int qtnf_trans_send_cmd_with_resp(struct qtnf_bus *bus,
+				  struct sk_buff *cmd_skb,
+				  struct sk_buff **response_skb);
+
+#endif /* _QTN_FMAC_TRANS_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.c b/drivers/net/wireless/quantenna/qtnfmac/util.c
new file mode 100644
index 0000000000..cda6f5f3f3
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/util.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
+
+#include "util.h"
+#include "qtn_hw_ids.h"
+
+void qtnf_sta_list_init(struct qtnf_sta_list *list)
+{
+	if (unlikely(!list))
+		return;
+
+	INIT_LIST_HEAD(&list->head);
+	atomic_set(&list->size, 0);
+}
+
+struct qtnf_sta_node *qtnf_sta_list_lookup(struct qtnf_sta_list *list,
+					   const u8 *mac)
+{
+	struct qtnf_sta_node *node;
+
+	if (unlikely(!mac))
+		return NULL;
+
+	list_for_each_entry(node, &list->head, list) {
+		if (ether_addr_equal(node->mac_addr, mac))
+			return node;
+	}
+
+	return NULL;
+}
+
+struct qtnf_sta_node *qtnf_sta_list_lookup_index(struct qtnf_sta_list *list,
+						 size_t index)
+{
+	struct qtnf_sta_node *node;
+
+	if (qtnf_sta_list_size(list) <= index)
+		return NULL;
+
+	list_for_each_entry(node, &list->head, list) {
+		if (index-- == 0)
+			return node;
+	}
+
+	return NULL;
+}
+
+struct qtnf_sta_node *qtnf_sta_list_add(struct qtnf_vif *vif,
+					const u8 *mac)
+{
+	struct qtnf_sta_list *list = &vif->sta_list;
+	struct qtnf_sta_node *node;
+
+	if (unlikely(!mac))
+		return NULL;
+
+	node = qtnf_sta_list_lookup(list, mac);
+
+	if (node)
+		goto done;
+
+	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	if (unlikely(!node))
+		goto done;
+
+	ether_addr_copy(node->mac_addr, mac);
+	list_add_tail(&node->list, &list->head);
+	atomic_inc(&list->size);
+	++vif->generation;
+
+done:
+	return node;
+}
+
+bool qtnf_sta_list_del(struct qtnf_vif *vif, const u8 *mac)
+{
+	struct qtnf_sta_list *list = &vif->sta_list;
+	struct qtnf_sta_node *node;
+	bool ret = false;
+
+	node = qtnf_sta_list_lookup(list, mac);
+
+	if (node) {
+		list_del(&node->list);
+		atomic_dec(&list->size);
+		kfree(node);
+		++vif->generation;
+		ret = true;
+	}
+
+	return ret;
+}
+
+void qtnf_sta_list_free(struct qtnf_sta_list *list)
+{
+	struct qtnf_sta_node *node, *tmp;
+
+	atomic_set(&list->size, 0);
+
+	list_for_each_entry_safe(node, tmp, &list->head, list) {
+		list_del(&node->list);
+		kfree(node);
+	}
+
+	INIT_LIST_HEAD(&list->head);
+}
+
+const char *qtnf_chipid_to_string(unsigned long chip_id)
+{
+	switch (chip_id) {
+	case QTN_CHIP_ID_TOPAZ:
+		return "Topaz";
+	case QTN_CHIP_ID_PEARL:
+		return "Pearl revA";
+	case QTN_CHIP_ID_PEARL_B:
+		return "Pearl revB";
+	case QTN_CHIP_ID_PEARL_C:
+		return "Pearl revC";
+	default:
+		return "unknown";
+	}
+}
+EXPORT_SYMBOL_GPL(qtnf_chipid_to_string);
diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.h b/drivers/net/wireless/quantenna/qtnfmac/util.h
new file mode 100644
index 0000000000..a14b7078a9
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/util.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2015 Quantenna Communications. All rights reserved. */
+
+#ifndef QTNFMAC_UTIL_H
+#define QTNFMAC_UTIL_H
+
+#include <linux/kernel.h>
+#include "core.h"
+
+const char *qtnf_chipid_to_string(unsigned long chip_id);
+
+void qtnf_sta_list_init(struct qtnf_sta_list *list);
+
+struct qtnf_sta_node *qtnf_sta_list_lookup(struct qtnf_sta_list *list,
+					   const u8 *mac);
+struct qtnf_sta_node *qtnf_sta_list_lookup_index(struct qtnf_sta_list *list,
+						 size_t index);
+struct qtnf_sta_node *qtnf_sta_list_add(struct qtnf_vif *vif,
+					const u8 *mac);
+bool qtnf_sta_list_del(struct qtnf_vif *vif, const u8 *mac);
+
+void qtnf_sta_list_free(struct qtnf_sta_list *list);
+
+static inline size_t qtnf_sta_list_size(const struct qtnf_sta_list *list)
+{
+	return atomic_read(&list->size);
+}
+
+static inline bool qtnf_sta_list_empty(const struct qtnf_sta_list *list)
+{
+	return list_empty(&list->head);
+}
+
+#endif /* QTNFMAC_UTIL_H */