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

Pull networking updates from David Miller:

 1) Support 6Ghz band in ath11k driver, from Rajkumar Manoharan.

 2) Support UDP segmentation in code TSO code, from Eric Dumazet.

 3) Allow flashing different flash images in cxgb4 driver, from Vishal
    Kulkarni.

 4) Add drop frames counter and flow status to tc flower offloading,
    from Po Liu.

 5) Support n-tuple filters in cxgb4, from Vishal Kulkarni.

 6) Various new indirect call avoidance, from Eric Dumazet and Brian
    Vazquez.

 7) Fix BPF verifier failures on 32-bit pointer arithmetic, from
    Yonghong Song.

 8) Support querying and setting hardware address of a port function via
    devlink, use this in mlx5, from Parav Pandit.

 9) Support hw ipsec offload on bonding slaves, from Jarod Wilson.

10) Switch qca8k driver over to phylink, from Jonathan McDowell.

11) In bpftool, show list of processes holding BPF FD references to
    maps, programs, links, and btf objects. From Andrii Nakryiko.

12) Several conversions over to generic power management, from Vaibhav
    Gupta.

13) Add support for SO_KEEPALIVE et al. to bpf_setsockopt(), from Dmitry
    Yakunin.

14) Various https url conversions, from Alexander A. Klimov.

15) Timestamping and PHC support for mscc PHY driver, from Antoine
    Tenart.

16) Support bpf iterating over tcp and udp sockets, from Yonghong Song.

17) Support 5GBASE-T i40e NICs, from Aleksandr Loktionov.

18) Add kTLS RX HW offload support to mlx5e, from Tariq Toukan.

19) Fix the ->ndo_start_xmit() return type to be netdev_tx_t in several
    drivers. From Luc Van Oostenryck.

20) XDP support for xen-netfront, from Denis Kirjanov.

21) Support receive buffer autotuning in MPTCP, from Florian Westphal.

22) Support EF100 chip in sfc driver, from Edward Cree.

23) Add XDP support to mvpp2 driver, from Matteo Croce.

24) Support MPTCP in sock_diag, from Paolo Abeni.

25) Commonize UDP tunnel offloading code by creating udp_tunnel_nic
    infrastructure, from Jakub Kicinski.

26) Several pci_ --> dma_ API conversions, from Christophe JAILLET.

27) Add FLOW_ACTION_POLICE support to mlxsw, from Ido Schimmel.

28) Add SK_LOOKUP bpf program type, from Jakub Sitnicki.

29) Refactor a lot of networking socket option handling code in order to
    avoid set_fs() calls, from Christoph Hellwig.

30) Add rfc4884 support to icmp code, from Willem de Bruijn.

31) Support TBF offload in dpaa2-eth driver, from Ioana Ciornei.

32) Support XDP_REDIRECT in qede driver, from Alexander Lobakin.

33) Support PCI relaxed ordering in mlx5 driver, from Aya Levin.

34) Support TCP syncookies in MPTCP, from Flowian Westphal.

35) Fix several tricky cases of PMTU handling wrt. briding, from Stefano
    Brivio.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2056 commits)
  net: thunderx: initialize VF's mailbox mutex before first usage
  usb: hso: remove bogus check for EINPROGRESS
  usb: hso: no complaint about kmalloc failure
  hso: fix bailout in error case of probe
  ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM
  selftests/net: relax cpu affinity requirement in msg_zerocopy test
  mptcp: be careful on subflow creation
  selftests: rtnetlink: make kci_test_encap() return sub-test result
  selftests: rtnetlink: correct the final return value for the test
  net: dsa: sja1105: use detected device id instead of DT one on mismatch
  tipc: set ub->ifindex for local ipv6 address
  ipv6: add ipv6_dev_find()
  net: openvswitch: silence suspicious RCU usage warning
  Revert "vxlan: fix tos value before xmit"
  ptp: only allow phase values lower than 1 period
  farsync: switch from 'pci_' to 'dma_' API
  wan: wanxl: switch from 'pci_' to 'dma_' API
  hv_netvsc: do not use VF device if link is down
  dpaa2-eth: Fix passing zero to 'PTR_ERR' warning
  net: macb: Properly handle phylink on at91sam9x
  ...

1 files changed, 938 insertions, 0 deletions

diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.c b/drivers/net/wireless/microchip/wilc1000/netdev.c
new file mode 100644
index 000000000000..20615c7ec168
--- /dev/null
+++ b/drivers/net/wireless/microchip/wilc1000/netdev.c
@@ -0,0 +1,938 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
+ * All rights reserved.
+ */
+
+#include <linux/irq.h>
+#include <linux/kthread.h>
+#include <linux/firmware.h>
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+
+#include "cfg80211.h"
+#include "wlan_cfg.h"
+
+#define WILC_MULTICAST_TABLE_SIZE	8
+
+/* latest API version supported */
+#define WILC1000_API_VER		1
+
+#define WILC1000_FW_PREFIX		"atmel/wilc1000_wifi_firmware-"
+#define __WILC1000_FW(api)		WILC1000_FW_PREFIX #api ".bin"
+#define WILC1000_FW(api)		__WILC1000_FW(api)
+
+static irqreturn_t isr_uh_routine(int irq, void *user_data)
+{
+	struct net_device *dev = user_data;
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc = vif->wilc;
+
+	if (wilc->close) {
+		netdev_err(dev, "Can't handle UH interrupt\n");
+		return IRQ_HANDLED;
+	}
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t isr_bh_routine(int irq, void *userdata)
+{
+	struct net_device *dev = userdata;
+	struct wilc_vif *vif = netdev_priv(userdata);
+	struct wilc *wilc = vif->wilc;
+
+	if (wilc->close) {
+		netdev_err(dev, "Can't handle BH interrupt\n");
+		return IRQ_HANDLED;
+	}
+
+	wilc_handle_isr(wilc);
+
+	return IRQ_HANDLED;
+}
+
+static int init_irq(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wl = vif->wilc;
+	int ret;
+
+	ret = request_threaded_irq(wl->dev_irq_num, isr_uh_routine,
+				   isr_bh_routine,
+				   IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+				   "WILC_IRQ", dev);
+	if (ret) {
+		netdev_err(dev, "Failed to request IRQ [%d]\n", ret);
+		return ret;
+	}
+	netdev_dbg(dev, "IRQ request succeeded IRQ-NUM= %d\n", wl->dev_irq_num);
+
+	return 0;
+}
+
+static void deinit_irq(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc = vif->wilc;
+
+	/* Deinitialize IRQ */
+	if (wilc->dev_irq_num)
+		free_irq(wilc->dev_irq_num, wilc);
+}
+
+void wilc_mac_indicate(struct wilc *wilc)
+{
+	s8 status;
+
+	wilc_wlan_cfg_get_val(wilc, WID_STATUS, &status, 1);
+	if (wilc->mac_status == WILC_MAC_STATUS_INIT) {
+		wilc->mac_status = status;
+		complete(&wilc->sync_event);
+	} else {
+		wilc->mac_status = status;
+	}
+}
+
+static struct net_device *get_if_handler(struct wilc *wilc, u8 *mac_header)
+{
+	struct net_device *ndev = NULL;
+	struct wilc_vif *vif;
+	struct ieee80211_hdr *h = (struct ieee80211_hdr *)mac_header;
+
+	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+		if (vif->mode == WILC_STATION_MODE)
+			if (ether_addr_equal_unaligned(h->addr2, vif->bssid)) {
+				ndev = vif->ndev;
+				goto out;
+			}
+		if (vif->mode == WILC_AP_MODE)
+			if (ether_addr_equal_unaligned(h->addr1, vif->bssid)) {
+				ndev = vif->ndev;
+				goto out;
+			}
+	}
+out:
+	return ndev;
+}
+
+void wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode)
+{
+	struct wilc_vif *vif = netdev_priv(wilc_netdev);
+
+	if (bssid)
+		ether_addr_copy(vif->bssid, bssid);
+	else
+		eth_zero_addr(vif->bssid);
+
+	vif->mode = mode;
+}
+
+int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
+{
+	int srcu_idx;
+	u8 ret_val = 0;
+	struct wilc_vif *vif;
+
+	srcu_idx = srcu_read_lock(&wilc->srcu);
+	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+		if (!is_zero_ether_addr(vif->bssid))
+			ret_val++;
+	}
+	srcu_read_unlock(&wilc->srcu, srcu_idx);
+	return ret_val;
+}
+
+static int wilc_txq_task(void *vp)
+{
+	int ret;
+	u32 txq_count;
+	struct wilc *wl = vp;
+
+	complete(&wl->txq_thread_started);
+	while (1) {
+		wait_for_completion(&wl->txq_event);
+
+		if (wl->close) {
+			complete(&wl->txq_thread_started);
+
+			while (!kthread_should_stop())
+				schedule();
+			break;
+		}
+		do {
+			ret = wilc_wlan_handle_txq(wl, &txq_count);
+			if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD) {
+				int srcu_idx;
+				struct wilc_vif *ifc;
+
+				srcu_idx = srcu_read_lock(&wl->srcu);
+				list_for_each_entry_rcu(ifc, &wl->vif_list,
+							list) {
+					if (ifc->mac_opened && ifc->ndev)
+						netif_wake_queue(ifc->ndev);
+				}
+				srcu_read_unlock(&wl->srcu, srcu_idx);
+			}
+		} while (ret == WILC_VMM_ENTRY_FULL_RETRY && !wl->close);
+	}
+	return 0;
+}
+
+static int wilc_wlan_get_firmware(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc = vif->wilc;
+	int chip_id;
+	const struct firmware *wilc_fw;
+	int ret;
+
+	chip_id = wilc_get_chipid(wilc, false);
+
+	netdev_info(dev, "ChipID [%x] loading firmware [%s]\n", chip_id,
+		    WILC1000_FW(WILC1000_API_VER));
+
+	ret = request_firmware(&wilc_fw, WILC1000_FW(WILC1000_API_VER),
+			       wilc->dev);
+	if (ret != 0) {
+		netdev_err(dev, "%s - firmware not available\n",
+			   WILC1000_FW(WILC1000_API_VER));
+		return -EINVAL;
+	}
+	wilc->firmware = wilc_fw;
+
+	return 0;
+}
+
+static int wilc_start_firmware(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc = vif->wilc;
+	int ret = 0;
+
+	ret = wilc_wlan_start(wilc);
+	if (ret)
+		return ret;
+
+	if (!wait_for_completion_timeout(&wilc->sync_event,
+					 msecs_to_jiffies(5000)))
+		return -ETIME;
+
+	return 0;
+}
+
+static int wilc1000_firmware_download(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc = vif->wilc;
+	int ret = 0;
+
+	if (!wilc->firmware) {
+		netdev_err(dev, "Firmware buffer is NULL\n");
+		return -ENOBUFS;
+	}
+
+	ret = wilc_wlan_firmware_download(wilc, wilc->firmware->data,
+					  wilc->firmware->size);
+	if (ret)
+		return ret;
+
+	release_firmware(wilc->firmware);
+	wilc->firmware = NULL;
+
+	netdev_dbg(dev, "Download Succeeded\n");
+
+	return 0;
+}
+
+static int wilc_init_fw_config(struct net_device *dev, struct wilc_vif *vif)
+{
+	struct wilc_priv *priv = &vif->priv;
+	struct host_if_drv *hif_drv;
+	u8 b;
+	u16 hw;
+	u32 w;
+
+	netdev_dbg(dev, "Start configuring Firmware\n");
+	hif_drv = (struct host_if_drv *)priv->hif_drv;
+	netdev_dbg(dev, "Host = %p\n", hif_drv);
+
+	w = vif->iftype;
+	cpu_to_le32s(&w);
+	if (!wilc_wlan_cfg_set(vif, 1, WID_SET_OPERATION_MODE, (u8 *)&w, 4,
+			       0, 0))
+		goto fail;
+
+	b = WILC_FW_BSS_TYPE_INFRA;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_BSS_TYPE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_TX_RATE_AUTO;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_CURRENT_TX_RATE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_OPER_MODE_G_MIXED_11B_2;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11G_OPERATING_MODE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_PREAMBLE_SHORT;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_PREAMBLE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_11N_PROT_AUTO;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_PROT_MECH, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_ACTIVE_SCAN;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_SCAN_TYPE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_SITE_SURVEY_OFF;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_SITE_SURVEY, &b, 1, 0, 0))
+		goto fail;
+
+	hw = 0xffff;
+	cpu_to_le16s(&hw);
+	if (!wilc_wlan_cfg_set(vif, 0, WID_RTS_THRESHOLD, (u8 *)&hw, 2, 0, 0))
+		goto fail;
+
+	hw = 2346;
+	cpu_to_le16s(&hw);
+	if (!wilc_wlan_cfg_set(vif, 0, WID_FRAG_THRESHOLD, (u8 *)&hw, 2, 0, 0))
+		goto fail;
+
+	b = 0;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_BCAST_SSID, &b, 1, 0, 0))
+		goto fail;
+
+	b = 1;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_QOS_ENABLE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_NO_POWERSAVE;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_POWER_MANAGEMENT, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_SEC_NO;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11I_MODE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_AUTH_OPEN_SYSTEM;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_AUTH_TYPE, &b, 1, 0, 0))
+		goto fail;
+
+	b = 3;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_LISTEN_INTERVAL, &b, 1, 0, 0))
+		goto fail;
+
+	b = 3;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_DTIM_PERIOD, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_ACK_POLICY_NORMAL;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_ACK_POLICY, &b, 1, 0, 0))
+		goto fail;
+
+	b = 0;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_USER_CONTROL_ON_TX_POWER, &b, 1,
+			       0, 0))
+		goto fail;
+
+	b = 48;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11A, &b, 1, 0, 0))
+		goto fail;
+
+	b = 28;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11B, &b, 1, 0, 0))
+		goto fail;
+
+	hw = 100;
+	cpu_to_le16s(&hw);
+	if (!wilc_wlan_cfg_set(vif, 0, WID_BEACON_INTERVAL, (u8 *)&hw, 2, 0, 0))
+		goto fail;
+
+	b = WILC_FW_REKEY_POLICY_DISABLE;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_POLICY, &b, 1, 0, 0))
+		goto fail;
+
+	w = 84600;
+	cpu_to_le32s(&w);
+	if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PERIOD, (u8 *)&w, 4, 0, 0))
+		goto fail;
+
+	w = 500;
+	cpu_to_le32s(&w);
+	if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PACKET_COUNT, (u8 *)&w, 4, 0,
+			       0))
+		goto fail;
+
+	b = 1;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_SHORT_SLOT_ALLOWED, &b, 1, 0,
+			       0))
+		goto fail;
+
+	b = WILC_FW_ERP_PROT_SELF_CTS;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ERP_PROT_TYPE, &b, 1, 0, 0))
+		goto fail;
+
+	b = 1;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ENABLE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_11N_OP_MODE_HT_MIXED;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OPERATING_MODE, &b, 1, 0, 0))
+		goto fail;
+
+	b = 1;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_TXOP_PROT_DISABLE, &b, 1, 0, 0))
+		goto fail;
+
+	b = WILC_FW_OBBS_NONHT_DETECT_PROTECT_REPORT;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OBSS_NONHT_DETECTION, &b, 1,
+			       0, 0))
+		goto fail;
+
+	b = WILC_FW_HT_PROT_RTS_CTS_NONHT;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_HT_PROT_TYPE, &b, 1, 0, 0))
+		goto fail;
+
+	b = 0;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_RIFS_PROT_ENABLE, &b, 1, 0,
+			       0))
+		goto fail;
+
+	b = 7;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_CURRENT_TX_MCS, &b, 1, 0, 0))
+		goto fail;
+
+	b = 1;
+	if (!wilc_wlan_cfg_set(vif, 0, WID_11N_IMMEDIATE_BA_ENABLED, &b, 1,
+			       1, 1))
+		goto fail;
+
+	return 0;
+
+fail:
+	return -EINVAL;
+}
+
+static void wlan_deinitialize_threads(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wl = vif->wilc;
+
+	wl->close = 1;
+
+	complete(&wl->txq_event);
+
+	if (wl->txq_thread) {
+		kthread_stop(wl->txq_thread);
+		wl->txq_thread = NULL;
+	}
+}
+
+static void wilc_wlan_deinitialize(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wl = vif->wilc;
+
+	if (!wl) {
+		netdev_err(dev, "wl is NULL\n");
+		return;
+	}
+
+	if (wl->initialized) {
+		netdev_info(dev, "Deinitializing wilc1000...\n");
+
+		if (!wl->dev_irq_num &&
+		    wl->hif_func->disable_interrupt) {
+			mutex_lock(&wl->hif_cs);
+			wl->hif_func->disable_interrupt(wl);
+			mutex_unlock(&wl->hif_cs);
+		}
+		complete(&wl->txq_event);
+
+		wlan_deinitialize_threads(dev);
+		deinit_irq(dev);
+
+		wilc_wlan_stop(wl, vif);
+		wilc_wlan_cleanup(dev);
+
+		wl->initialized = false;
+
+		netdev_dbg(dev, "wilc1000 deinitialization Done\n");
+	} else {
+		netdev_dbg(dev, "wilc1000 is not initialized\n");
+	}
+}
+
+static int wlan_initialize_threads(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc = vif->wilc;
+
+	wilc->txq_thread = kthread_run(wilc_txq_task, (void *)wilc,
+				       "K_TXQ_TASK");
+	if (IS_ERR(wilc->txq_thread)) {
+		netdev_err(dev, "couldn't create TXQ thread\n");
+		wilc->close = 0;
+		return PTR_ERR(wilc->txq_thread);
+	}
+	wait_for_completion(&wilc->txq_thread_started);
+
+	return 0;
+}
+
+static int wilc_wlan_initialize(struct net_device *dev, struct wilc_vif *vif)
+{
+	int ret = 0;
+	struct wilc *wl = vif->wilc;
+
+	if (!wl->initialized) {
+		wl->mac_status = WILC_MAC_STATUS_INIT;
+		wl->close = 0;
+
+		ret = wilc_wlan_init(dev);
+		if (ret)
+			return ret;
+
+		ret = wlan_initialize_threads(dev);
+		if (ret)
+			goto fail_wilc_wlan;
+
+		if (wl->dev_irq_num && init_irq(dev)) {
+			ret = -EIO;
+			goto fail_threads;
+		}
+
+		if (!wl->dev_irq_num &&
+		    wl->hif_func->enable_interrupt &&
+		    wl->hif_func->enable_interrupt(wl)) {
+			ret = -EIO;
+			goto fail_irq_init;
+		}
+
+		ret = wilc_wlan_get_firmware(dev);
+		if (ret)
+			goto fail_irq_enable;
+
+		ret = wilc1000_firmware_download(dev);
+		if (ret)
+			goto fail_irq_enable;
+
+		ret = wilc_start_firmware(dev);
+		if (ret)
+			goto fail_irq_enable;
+
+		if (wilc_wlan_cfg_get(vif, 1, WID_FIRMWARE_VERSION, 1, 0)) {
+			int size;
+			char firmware_ver[20];
+
+			size = wilc_wlan_cfg_get_val(wl, WID_FIRMWARE_VERSION,
+						     firmware_ver,
+						     sizeof(firmware_ver));
+			firmware_ver[size] = '\0';
+			netdev_dbg(dev, "Firmware Ver = %s\n", firmware_ver);
+		}
+
+		ret = wilc_init_fw_config(dev, vif);
+		if (ret) {
+			netdev_err(dev, "Failed to configure firmware\n");
+			goto fail_fw_start;
+		}
+		wl->initialized = true;
+		return 0;
+
+fail_fw_start:
+		wilc_wlan_stop(wl, vif);
+
+fail_irq_enable:
+		if (!wl->dev_irq_num &&
+		    wl->hif_func->disable_interrupt)
+			wl->hif_func->disable_interrupt(wl);
+fail_irq_init:
+		if (wl->dev_irq_num)
+			deinit_irq(dev);
+fail_threads:
+		wlan_deinitialize_threads(dev);
+fail_wilc_wlan:
+		wilc_wlan_cleanup(dev);
+		netdev_err(dev, "WLAN initialization FAILED\n");
+	} else {
+		netdev_dbg(dev, "wilc1000 already initialized\n");
+	}
+	return ret;
+}
+
+static int mac_init_fn(struct net_device *ndev)
+{
+	netif_start_queue(ndev);
+	netif_stop_queue(ndev);
+
+	return 0;
+}
+
+static int wilc_mac_open(struct net_device *ndev)
+{
+	struct wilc_vif *vif = netdev_priv(ndev);
+	struct wilc *wl = vif->wilc;
+	unsigned char mac_add[ETH_ALEN] = {0};
+	int ret = 0;
+	struct mgmt_frame_regs mgmt_regs = {};
+
+	if (!wl || !wl->dev) {
+		netdev_err(ndev, "device not ready\n");
+		return -ENODEV;
+	}
+
+	netdev_dbg(ndev, "MAC OPEN[%p]\n", ndev);
+
+	ret = wilc_init_host_int(ndev);
+	if (ret)
+		return ret;
+
+	ret = wilc_wlan_initialize(ndev, vif);
+	if (ret) {
+		wilc_deinit_host_int(ndev);
+		return ret;
+	}
+
+	wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), vif->iftype,
+				vif->idx);
+	wilc_get_mac_address(vif, mac_add);
+	netdev_dbg(ndev, "Mac address: %pM\n", mac_add);
+	ether_addr_copy(ndev->dev_addr, mac_add);
+
+	if (!is_valid_ether_addr(ndev->dev_addr)) {
+		netdev_err(ndev, "Wrong MAC address\n");
+		wilc_deinit_host_int(ndev);
+		wilc_wlan_deinitialize(ndev);
+		return -EINVAL;
+	}
+
+	mgmt_regs.interface_stypes = vif->mgmt_reg_stypes;
+	/* so we detect a change */
+	vif->mgmt_reg_stypes = 0;
+	wilc_update_mgmt_frame_registrations(vif->ndev->ieee80211_ptr->wiphy,
+					     vif->ndev->ieee80211_ptr,
+					     &mgmt_regs);
+	netif_wake_queue(ndev);
+	wl->open_ifcs++;
+	vif->mac_opened = 1;
+	return 0;
+}
+
+static struct net_device_stats *mac_stats(struct net_device *dev)
+{
+	struct wilc_vif *vif = netdev_priv(dev);
+
+	return &vif->netstats;
+}
+
+static void wilc_set_multicast_list(struct net_device *dev)
+{
+	struct netdev_hw_addr *ha;
+	struct wilc_vif *vif = netdev_priv(dev);
+	int i;
+	u8 *mc_list;
+	u8 *cur_mc;
+
+	if (dev->flags & IFF_PROMISC)
+		return;
+
+	if (dev->flags & IFF_ALLMULTI ||
+	    dev->mc.count > WILC_MULTICAST_TABLE_SIZE) {
+		wilc_setup_multicast_filter(vif, 0, 0, NULL);
+		return;
+	}
+
+	if (dev->mc.count == 0) {
+		wilc_setup_multicast_filter(vif, 1, 0, NULL);
+		return;
+	}
+
+	mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_ATOMIC);
+	if (!mc_list)
+		return;
+
+	cur_mc = mc_list;
+	i = 0;
+	netdev_for_each_mc_addr(ha, dev) {
+		memcpy(cur_mc, ha->addr, ETH_ALEN);
+		netdev_dbg(dev, "Entry[%d]: %pM\n", i, cur_mc);
+		i++;
+		cur_mc += ETH_ALEN;
+	}
+
+	if (wilc_setup_multicast_filter(vif, 1, dev->mc.count, mc_list))
+		kfree(mc_list);
+}
+
+static void wilc_tx_complete(void *priv, int status)
+{
+	struct tx_complete_data *pv_data = priv;
+
+	dev_kfree_skb(pv_data->skb);
+	kfree(pv_data);
+}
+
+netdev_tx_t wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+	struct wilc_vif *vif = netdev_priv(ndev);
+	struct wilc *wilc = vif->wilc;
+	struct tx_complete_data *tx_data = NULL;
+	int queue_count;
+
+	if (skb->dev != ndev) {
+		netdev_err(ndev, "Packet not destined to this device\n");
+		return NETDEV_TX_OK;
+	}
+
+	tx_data = kmalloc(sizeof(*tx_data), GFP_ATOMIC);
+	if (!tx_data) {
+		dev_kfree_skb(skb);
+		netif_wake_queue(ndev);
+		return NETDEV_TX_OK;
+	}
+
+	tx_data->buff = skb->data;
+	tx_data->size = skb->len;
+	tx_data->skb  = skb;
+
+	vif->netstats.tx_packets++;
+	vif->netstats.tx_bytes += tx_data->size;
+	queue_count = wilc_wlan_txq_add_net_pkt(ndev, (void *)tx_data,
+						tx_data->buff, tx_data->size,
+						wilc_tx_complete);
+
+	if (queue_count > FLOW_CONTROL_UPPER_THRESHOLD) {
+		int srcu_idx;
+		struct wilc_vif *vif;
+
+		srcu_idx = srcu_read_lock(&wilc->srcu);
+		list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+			if (vif->mac_opened)
+				netif_stop_queue(vif->ndev);
+		}
+		srcu_read_unlock(&wilc->srcu, srcu_idx);
+	}
+
+	return NETDEV_TX_OK;
+}
+
+static int wilc_mac_close(struct net_device *ndev)
+{
+	struct wilc_vif *vif = netdev_priv(ndev);
+	struct wilc *wl = vif->wilc;
+
+	netdev_dbg(ndev, "Mac close\n");
+
+	if (wl->open_ifcs > 0)
+		wl->open_ifcs--;
+	else
+		return 0;
+
+	if (vif->ndev) {
+		netif_stop_queue(vif->ndev);
+
+		wilc_deinit_host_int(vif->ndev);
+	}
+
+	if (wl->open_ifcs == 0) {
+		netdev_dbg(ndev, "Deinitializing wilc1000\n");
+		wl->close = 1;
+		wilc_wlan_deinitialize(ndev);
+	}
+
+	vif->mac_opened = 0;
+
+	return 0;
+}
+
+void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size,
+		       u32 pkt_offset)
+{
+	unsigned int frame_len = 0;
+	int stats;
+	unsigned char *buff_to_send = NULL;
+	struct sk_buff *skb;
+	struct net_device *wilc_netdev;
+	struct wilc_vif *vif;
+
+	if (!wilc)
+		return;
+
+	wilc_netdev = get_if_handler(wilc, buff);
+	if (!wilc_netdev)
+		return;
+
+	buff += pkt_offset;
+	vif = netdev_priv(wilc_netdev);
+
+	if (size > 0) {
+		frame_len = size;
+		buff_to_send = buff;
+
+		skb = dev_alloc_skb(frame_len);
+		if (!skb)
+			return;
+
+		skb->dev = wilc_netdev;
+
+		skb_put_data(skb, buff_to_send, frame_len);
+
+		skb->protocol = eth_type_trans(skb, wilc_netdev);
+		vif->netstats.rx_packets++;
+		vif->netstats.rx_bytes += frame_len;
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		stats = netif_rx(skb);
+		netdev_dbg(wilc_netdev, "netif_rx ret value is: %d\n", stats);
+	}
+}
+
+void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size)
+{
+	int srcu_idx;
+	struct wilc_vif *vif;
+
+	srcu_idx = srcu_read_lock(&wilc->srcu);
+	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+		u16 type = le16_to_cpup((__le16 *)buff);
+		u32 type_bit = BIT(type >> 4);
+
+		if (vif->priv.p2p_listen_state &&
+		    vif->mgmt_reg_stypes & type_bit)
+			wilc_wfi_p2p_rx(vif, buff, size);
+
+		if (vif->monitor_flag)
+			wilc_wfi_monitor_rx(wilc->monitor_dev, buff, size);
+	}
+	srcu_read_unlock(&wilc->srcu, srcu_idx);
+}
+
+static const struct net_device_ops wilc_netdev_ops = {
+	.ndo_init = mac_init_fn,
+	.ndo_open = wilc_mac_open,
+	.ndo_stop = wilc_mac_close,
+	.ndo_start_xmit = wilc_mac_xmit,
+	.ndo_get_stats = mac_stats,
+	.ndo_set_rx_mode  = wilc_set_multicast_list,
+};
+
+void wilc_netdev_cleanup(struct wilc *wilc)
+{
+	struct wilc_vif *vif;
+	int srcu_idx, ifc_cnt = 0;
+
+	if (!wilc)
+		return;
+
+	if (wilc->firmware) {
+		release_firmware(wilc->firmware);
+		wilc->firmware = NULL;
+	}
+
+	srcu_idx = srcu_read_lock(&wilc->srcu);
+	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+		if (vif->ndev)
+			unregister_netdev(vif->ndev);
+	}
+	srcu_read_unlock(&wilc->srcu, srcu_idx);
+
+	wilc_wfi_deinit_mon_interface(wilc, false);
+	flush_workqueue(wilc->hif_workqueue);
+	destroy_workqueue(wilc->hif_workqueue);
+
+	while (ifc_cnt < WILC_NUM_CONCURRENT_IFC) {
+		mutex_lock(&wilc->vif_mutex);
+		if (wilc->vif_num <= 0) {
+			mutex_unlock(&wilc->vif_mutex);
+			break;
+		}
+		vif = wilc_get_wl_to_vif(wilc);
+		if (!IS_ERR(vif))
+			list_del_rcu(&vif->list);
+
+		wilc->vif_num--;
+		mutex_unlock(&wilc->vif_mutex);
+		synchronize_srcu(&wilc->srcu);
+		ifc_cnt++;
+	}
+
+	wilc_wlan_cfg_deinit(wilc);
+	wlan_deinit_locks(wilc);
+	kfree(wilc->bus_data);
+	wiphy_unregister(wilc->wiphy);
+	wiphy_free(wilc->wiphy);
+}
+EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
+
+static u8 wilc_get_available_idx(struct wilc *wl)
+{
+	int idx = 0;
+	struct wilc_vif *vif;
+	int srcu_idx;
+
+	srcu_idx = srcu_read_lock(&wl->srcu);
+	list_for_each_entry_rcu(vif, &wl->vif_list, list) {
+		if (vif->idx == 0)
+			idx = 1;
+		else
+			idx = 0;
+	}
+	srcu_read_unlock(&wl->srcu, srcu_idx);
+	return idx;
+}
+
+struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name,
+				      int vif_type, enum nl80211_iftype type,
+				      bool rtnl_locked)
+{
+	struct net_device *ndev;
+	struct wilc_vif *vif;
+	int ret;
+
+	ndev = alloc_etherdev(sizeof(*vif));
+	if (!ndev)
+		return ERR_PTR(-ENOMEM);
+
+	vif = netdev_priv(ndev);
+	ndev->ieee80211_ptr = &vif->priv.wdev;
+	strcpy(ndev->name, name);
+	vif->wilc = wl;
+	vif->ndev = ndev;
+	ndev->ml_priv = vif;
+
+	ndev->netdev_ops = &wilc_netdev_ops;
+
+	SET_NETDEV_DEV(ndev, wiphy_dev(wl->wiphy));
+
+	vif->priv.wdev.wiphy = wl->wiphy;
+	vif->priv.wdev.netdev = ndev;
+	vif->priv.wdev.iftype = type;
+	vif->priv.dev = ndev;
+
+	if (rtnl_locked)
+		ret = register_netdevice(ndev);
+	else
+		ret = register_netdev(ndev);
+
+	if (ret) {
+		free_netdev(ndev);
+		return ERR_PTR(-EFAULT);
+	}
+
+	ndev->needs_free_netdev = true;
+	vif->iftype = vif_type;
+	vif->idx = wilc_get_available_idx(wl);
+	vif->mac_opened = 0;
+	mutex_lock(&wl->vif_mutex);
+	list_add_tail_rcu(&vif->list, &wl->vif_list);
+	wl->vif_num += 1;
+	mutex_unlock(&wl->vif_mutex);
+	synchronize_srcu(&wl->srcu);
+
+	return vif;
+}
+
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(WILC1000_FW(WILC1000_API_VER));