Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 733 insertions, 0 deletions

diff --git a/drivers/net/wireless/marvell/mwifiex/init.c b/drivers/net/wireless/marvell/mwifiex/init.c
new file mode 100644
index 000000000..7dddb4b5d
--- /dev/null
+++ b/drivers/net/wireless/marvell/mwifiex/init.c
@@ -0,0 +1,733 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * NXP Wireless LAN device driver: HW/FW Initialization
+ *
+ * Copyright 2011-2020 NXP
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "wmm.h"
+#include "11n.h"
+
+/*
+ * This function adds a BSS priority table to the table list.
+ *
+ * The function allocates a new BSS priority table node and adds it to
+ * the end of BSS priority table list, kept in driver memory.
+ */
+static int mwifiex_add_bss_prio_tbl(struct mwifiex_private *priv)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct mwifiex_bss_prio_node *bss_prio;
+	struct mwifiex_bss_prio_tbl *tbl = adapter->bss_prio_tbl;
+
+	bss_prio = kzalloc(sizeof(struct mwifiex_bss_prio_node), GFP_KERNEL);
+	if (!bss_prio)
+		return -ENOMEM;
+
+	bss_prio->priv = priv;
+	INIT_LIST_HEAD(&bss_prio->list);
+
+	spin_lock_bh(&tbl[priv->bss_priority].bss_prio_lock);
+	list_add_tail(&bss_prio->list, &tbl[priv->bss_priority].bss_prio_head);
+	spin_unlock_bh(&tbl[priv->bss_priority].bss_prio_lock);
+
+	return 0;
+}
+
+static void wakeup_timer_fn(struct timer_list *t)
+{
+	struct mwifiex_adapter *adapter = from_timer(adapter, t, wakeup_timer);
+
+	mwifiex_dbg(adapter, ERROR, "Firmware wakeup failed\n");
+	adapter->hw_status = MWIFIEX_HW_STATUS_RESET;
+	mwifiex_cancel_all_pending_cmd(adapter);
+
+	if (adapter->if_ops.card_reset)
+		adapter->if_ops.card_reset(adapter);
+}
+
+static void fw_dump_work(struct work_struct *work)
+{
+	struct mwifiex_adapter *adapter =
+		container_of(work, struct mwifiex_adapter, devdump_work.work);
+
+	mwifiex_upload_device_dump(adapter);
+}
+
+/*
+ * This function initializes the private structure and sets default
+ * values to the members.
+ *
+ * Additionally, it also initializes all the locks and sets up all the
+ * lists.
+ */
+int mwifiex_init_priv(struct mwifiex_private *priv)
+{
+	u32 i;
+
+	priv->media_connected = false;
+	eth_broadcast_addr(priv->curr_addr);
+	priv->port_open = false;
+	priv->usb_port = MWIFIEX_USB_EP_DATA;
+	priv->pkt_tx_ctrl = 0;
+	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
+	priv->data_rate = 0;	/* Initially indicate the rate as auto */
+	priv->is_data_rate_auto = true;
+	priv->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR;
+	priv->data_avg_factor = DEFAULT_DATA_AVG_FACTOR;
+
+	priv->sec_info.wep_enabled = 0;
+	priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
+	priv->sec_info.encryption_mode = 0;
+	for (i = 0; i < ARRAY_SIZE(priv->wep_key); i++)
+		memset(&priv->wep_key[i], 0, sizeof(struct mwifiex_wep_key));
+	priv->wep_key_curr_index = 0;
+	priv->curr_pkt_filter = HostCmd_ACT_MAC_DYNAMIC_BW_ENABLE |
+				HostCmd_ACT_MAC_RX_ON | HostCmd_ACT_MAC_TX_ON |
+				HostCmd_ACT_MAC_ETHERNETII_ENABLE;
+
+	priv->beacon_period = 100; /* beacon interval */
+	priv->attempted_bss_desc = NULL;
+	memset(&priv->curr_bss_params, 0, sizeof(priv->curr_bss_params));
+	priv->listen_interval = MWIFIEX_DEFAULT_LISTEN_INTERVAL;
+
+	memset(&priv->prev_ssid, 0, sizeof(priv->prev_ssid));
+	memset(&priv->prev_bssid, 0, sizeof(priv->prev_bssid));
+	memset(&priv->assoc_rsp_buf, 0, sizeof(priv->assoc_rsp_buf));
+	priv->assoc_rsp_size = 0;
+	priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
+	priv->atim_window = 0;
+	priv->adhoc_state = ADHOC_IDLE;
+	priv->tx_power_level = 0;
+	priv->max_tx_power_level = 0;
+	priv->min_tx_power_level = 0;
+	priv->tx_ant = 0;
+	priv->rx_ant = 0;
+	priv->tx_rate = 0;
+	priv->rxpd_htinfo = 0;
+	priv->rxpd_rate = 0;
+	priv->rate_bitmap = 0;
+	priv->data_rssi_last = 0;
+	priv->data_rssi_avg = 0;
+	priv->data_nf_avg = 0;
+	priv->data_nf_last = 0;
+	priv->bcn_rssi_last = 0;
+	priv->bcn_rssi_avg = 0;
+	priv->bcn_nf_avg = 0;
+	priv->bcn_nf_last = 0;
+	memset(&priv->wpa_ie, 0, sizeof(priv->wpa_ie));
+	memset(&priv->aes_key, 0, sizeof(priv->aes_key));
+	priv->wpa_ie_len = 0;
+	priv->wpa_is_gtk_set = false;
+
+	memset(&priv->assoc_tlv_buf, 0, sizeof(priv->assoc_tlv_buf));
+	priv->assoc_tlv_buf_len = 0;
+	memset(&priv->wps, 0, sizeof(priv->wps));
+	memset(&priv->gen_ie_buf, 0, sizeof(priv->gen_ie_buf));
+	priv->gen_ie_buf_len = 0;
+	memset(priv->vs_ie, 0, sizeof(priv->vs_ie));
+
+	priv->wmm_required = true;
+	priv->wmm_enabled = false;
+	priv->wmm_qosinfo = 0;
+	priv->curr_bcn_buf = NULL;
+	priv->curr_bcn_size = 0;
+	priv->wps_ie = NULL;
+	priv->wps_ie_len = 0;
+	priv->ap_11n_enabled = 0;
+	memset(&priv->roc_cfg, 0, sizeof(priv->roc_cfg));
+
+	priv->scan_block = false;
+
+	priv->csa_chan = 0;
+	priv->csa_expire_time = 0;
+	priv->del_list_idx = 0;
+	priv->hs2_enabled = false;
+	priv->check_tdls_tx = false;
+	memcpy(priv->tos_to_tid_inv, tos_to_tid_inv, MAX_NUM_TID);
+
+	mwifiex_init_11h_params(priv);
+
+	return mwifiex_add_bss_prio_tbl(priv);
+}
+
+/*
+ * This function allocates buffers for members of the adapter
+ * structure.
+ *
+ * The memory allocated includes scan table, command buffers, and
+ * sleep confirm command buffer. In addition, the queues are
+ * also initialized.
+ */
+static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter)
+{
+	int ret;
+
+	/* Allocate command buffer */
+	ret = mwifiex_alloc_cmd_buffer(adapter);
+	if (ret) {
+		mwifiex_dbg(adapter, ERROR,
+			    "%s: failed to alloc cmd buffer\n",
+			    __func__);
+		return -1;
+	}
+
+	adapter->sleep_cfm =
+		dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm)
+			      + INTF_HEADER_LEN);
+
+	if (!adapter->sleep_cfm) {
+		mwifiex_dbg(adapter, ERROR,
+			    "%s: failed to alloc sleep cfm\t"
+			    " cmd buffer\n", __func__);
+		return -1;
+	}
+	skb_reserve(adapter->sleep_cfm, INTF_HEADER_LEN);
+
+	return 0;
+}
+
+/*
+ * This function initializes the adapter structure and sets default
+ * values to the members of adapter.
+ *
+ * This also initializes the WMM related parameters in the driver private
+ * structures.
+ */
+static void mwifiex_init_adapter(struct mwifiex_adapter *adapter)
+{
+	struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = NULL;
+
+	skb_put(adapter->sleep_cfm, sizeof(struct mwifiex_opt_sleep_confirm));
+
+	adapter->cmd_sent = false;
+
+	if (adapter->iface_type == MWIFIEX_SDIO)
+		adapter->data_sent = true;
+	else
+		adapter->data_sent = false;
+
+	if (adapter->iface_type == MWIFIEX_USB)
+		adapter->intf_hdr_len = 0;
+	else
+		adapter->intf_hdr_len = INTF_HEADER_LEN;
+
+	adapter->cmd_resp_received = false;
+	adapter->event_received = false;
+	adapter->data_received = false;
+
+	clear_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags);
+
+	adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
+
+	adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
+	adapter->ps_state = PS_STATE_AWAKE;
+	adapter->need_to_wakeup = false;
+
+	adapter->scan_mode = HostCmd_BSS_MODE_ANY;
+	adapter->specific_scan_time = MWIFIEX_SPECIFIC_SCAN_CHAN_TIME;
+	adapter->active_scan_time = MWIFIEX_ACTIVE_SCAN_CHAN_TIME;
+	adapter->passive_scan_time = MWIFIEX_PASSIVE_SCAN_CHAN_TIME;
+	adapter->scan_chan_gap_time = MWIFIEX_DEF_SCAN_CHAN_GAP_TIME;
+
+	adapter->scan_probes = 1;
+
+	adapter->multiple_dtim = 1;
+
+	adapter->local_listen_interval = 0;	/* default value in firmware
+						   will be used */
+
+	adapter->is_deep_sleep = false;
+
+	adapter->delay_null_pkt = false;
+	adapter->delay_to_ps = 1000;
+	adapter->enhanced_ps_mode = PS_MODE_AUTO;
+
+	adapter->gen_null_pkt = false;	/* Disable NULL Pkg generation by
+					   default */
+	adapter->pps_uapsd_mode = false; /* Disable pps/uapsd mode by
+					   default */
+	adapter->pm_wakeup_card_req = false;
+
+	adapter->pm_wakeup_fw_try = false;
+
+	adapter->curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
+
+	clear_bit(MWIFIEX_IS_HS_CONFIGURED, &adapter->work_flags);
+	adapter->hs_cfg.conditions = cpu_to_le32(HS_CFG_COND_DEF);
+	adapter->hs_cfg.gpio = HS_CFG_GPIO_DEF;
+	adapter->hs_cfg.gap = HS_CFG_GAP_DEF;
+	adapter->hs_activated = false;
+
+	memset(adapter->event_body, 0, sizeof(adapter->event_body));
+	adapter->hw_dot_11n_dev_cap = 0;
+	adapter->hw_dev_mcs_support = 0;
+	adapter->sec_chan_offset = 0;
+	adapter->adhoc_11n_enabled = false;
+
+	mwifiex_wmm_init(adapter);
+	atomic_set(&adapter->tx_hw_pending, 0);
+
+	sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm *)
+					adapter->sleep_cfm->data;
+	memset(sleep_cfm_buf, 0, adapter->sleep_cfm->len);
+	sleep_cfm_buf->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
+	sleep_cfm_buf->size = cpu_to_le16(adapter->sleep_cfm->len);
+	sleep_cfm_buf->result = 0;
+	sleep_cfm_buf->action = cpu_to_le16(SLEEP_CONFIRM);
+	sleep_cfm_buf->resp_ctrl = cpu_to_le16(RESP_NEEDED);
+
+	memset(&adapter->sleep_params, 0, sizeof(adapter->sleep_params));
+	memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period));
+	adapter->tx_lock_flag = false;
+	adapter->null_pkt_interval = 0;
+	adapter->fw_bands = 0;
+	adapter->config_bands = 0;
+	adapter->adhoc_start_band = 0;
+	adapter->scan_channels = NULL;
+	adapter->fw_release_number = 0;
+	adapter->fw_cap_info = 0;
+	memset(&adapter->upld_buf, 0, sizeof(adapter->upld_buf));
+	adapter->event_cause = 0;
+	adapter->region_code = 0;
+	adapter->bcn_miss_time_out = DEFAULT_BCN_MISS_TIMEOUT;
+	adapter->adhoc_awake_period = 0;
+	memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter));
+	adapter->arp_filter_size = 0;
+	adapter->max_mgmt_ie_index = MAX_MGMT_IE_INDEX;
+	adapter->mfg_mode = mfg_mode;
+	adapter->key_api_major_ver = 0;
+	adapter->key_api_minor_ver = 0;
+	eth_broadcast_addr(adapter->perm_addr);
+	adapter->iface_limit.sta_intf = MWIFIEX_MAX_STA_NUM;
+	adapter->iface_limit.uap_intf = MWIFIEX_MAX_UAP_NUM;
+	adapter->iface_limit.p2p_intf = MWIFIEX_MAX_P2P_NUM;
+	adapter->active_scan_triggered = false;
+	timer_setup(&adapter->wakeup_timer, wakeup_timer_fn, 0);
+	adapter->devdump_len = 0;
+	INIT_DELAYED_WORK(&adapter->devdump_work, fw_dump_work);
+}
+
+/*
+ * This function sets trans_start per tx_queue
+ */
+void mwifiex_set_trans_start(struct net_device *dev)
+{
+	int i;
+
+	for (i = 0; i < dev->num_tx_queues; i++)
+		txq_trans_cond_update(netdev_get_tx_queue(dev, i));
+
+	netif_trans_update(dev);
+}
+
+/*
+ * This function wakes up all queues in net_device
+ */
+void mwifiex_wake_up_net_dev_queue(struct net_device *netdev,
+					struct mwifiex_adapter *adapter)
+{
+	spin_lock_bh(&adapter->queue_lock);
+	netif_tx_wake_all_queues(netdev);
+	spin_unlock_bh(&adapter->queue_lock);
+}
+
+/*
+ * This function stops all queues in net_device
+ */
+void mwifiex_stop_net_dev_queue(struct net_device *netdev,
+					struct mwifiex_adapter *adapter)
+{
+	spin_lock_bh(&adapter->queue_lock);
+	netif_tx_stop_all_queues(netdev);
+	spin_unlock_bh(&adapter->queue_lock);
+}
+
+/*
+ * This function invalidates the list heads.
+ */
+static void mwifiex_invalidate_lists(struct mwifiex_adapter *adapter)
+{
+	struct mwifiex_private *priv;
+	s32 i, j;
+
+	list_del(&adapter->cmd_free_q);
+	list_del(&adapter->cmd_pending_q);
+	list_del(&adapter->scan_pending_q);
+
+	for (i = 0; i < adapter->priv_num; i++)
+		list_del(&adapter->bss_prio_tbl[i].bss_prio_head);
+
+	for (i = 0; i < adapter->priv_num; i++) {
+		if (adapter->priv[i]) {
+			priv = adapter->priv[i];
+			for (j = 0; j < MAX_NUM_TID; ++j)
+				list_del(&priv->wmm.tid_tbl_ptr[j].ra_list);
+			list_del(&priv->tx_ba_stream_tbl_ptr);
+			list_del(&priv->rx_reorder_tbl_ptr);
+			list_del(&priv->sta_list);
+			list_del(&priv->auto_tdls_list);
+		}
+	}
+}
+
+/*
+ * This function performs cleanup for adapter structure.
+ *
+ * The cleanup is done recursively, by canceling all pending
+ * commands, freeing the member buffers previously allocated
+ * (command buffers, scan table buffer, sleep confirm command
+ * buffer), stopping the timers and calling the cleanup routines
+ * for every interface.
+ */
+static void
+mwifiex_adapter_cleanup(struct mwifiex_adapter *adapter)
+{
+	del_timer(&adapter->wakeup_timer);
+	cancel_delayed_work_sync(&adapter->devdump_work);
+	mwifiex_cancel_all_pending_cmd(adapter);
+	wake_up_interruptible(&adapter->cmd_wait_q.wait);
+	wake_up_interruptible(&adapter->hs_activate_wait_q);
+}
+
+void mwifiex_free_cmd_buffers(struct mwifiex_adapter *adapter)
+{
+	mwifiex_invalidate_lists(adapter);
+
+	/* Free command buffer */
+	mwifiex_dbg(adapter, INFO, "info: free cmd buffer\n");
+	mwifiex_free_cmd_buffer(adapter);
+
+	if (adapter->sleep_cfm)
+		dev_kfree_skb_any(adapter->sleep_cfm);
+}
+
+/*
+ *  This function intializes the lock variables and
+ *  the list heads.
+ */
+int mwifiex_init_lock_list(struct mwifiex_adapter *adapter)
+{
+	struct mwifiex_private *priv;
+	s32 i, j;
+
+	spin_lock_init(&adapter->int_lock);
+	spin_lock_init(&adapter->main_proc_lock);
+	spin_lock_init(&adapter->mwifiex_cmd_lock);
+	spin_lock_init(&adapter->queue_lock);
+	for (i = 0; i < adapter->priv_num; i++) {
+		if (adapter->priv[i]) {
+			priv = adapter->priv[i];
+			spin_lock_init(&priv->wmm.ra_list_spinlock);
+			spin_lock_init(&priv->curr_bcn_buf_lock);
+			spin_lock_init(&priv->sta_list_spinlock);
+			spin_lock_init(&priv->auto_tdls_lock);
+		}
+	}
+
+	/* Initialize cmd_free_q */
+	INIT_LIST_HEAD(&adapter->cmd_free_q);
+	/* Initialize cmd_pending_q */
+	INIT_LIST_HEAD(&adapter->cmd_pending_q);
+	/* Initialize scan_pending_q */
+	INIT_LIST_HEAD(&adapter->scan_pending_q);
+
+	spin_lock_init(&adapter->cmd_free_q_lock);
+	spin_lock_init(&adapter->cmd_pending_q_lock);
+	spin_lock_init(&adapter->scan_pending_q_lock);
+	spin_lock_init(&adapter->rx_proc_lock);
+
+	skb_queue_head_init(&adapter->rx_data_q);
+	skb_queue_head_init(&adapter->tx_data_q);
+
+	for (i = 0; i < adapter->priv_num; ++i) {
+		INIT_LIST_HEAD(&adapter->bss_prio_tbl[i].bss_prio_head);
+		spin_lock_init(&adapter->bss_prio_tbl[i].bss_prio_lock);
+	}
+
+	for (i = 0; i < adapter->priv_num; i++) {
+		if (!adapter->priv[i])
+			continue;
+		priv = adapter->priv[i];
+		for (j = 0; j < MAX_NUM_TID; ++j)
+			INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list);
+		INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr);
+		INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr);
+		INIT_LIST_HEAD(&priv->sta_list);
+		INIT_LIST_HEAD(&priv->auto_tdls_list);
+		skb_queue_head_init(&priv->tdls_txq);
+		skb_queue_head_init(&priv->bypass_txq);
+
+		spin_lock_init(&priv->tx_ba_stream_tbl_lock);
+		spin_lock_init(&priv->rx_reorder_tbl_lock);
+
+		spin_lock_init(&priv->ack_status_lock);
+		idr_init(&priv->ack_status_frames);
+	}
+
+	return 0;
+}
+
+/*
+ * This function initializes the firmware.
+ *
+ * The following operations are performed sequentially -
+ *      - Allocate adapter structure
+ *      - Initialize the adapter structure
+ *      - Initialize the private structure
+ *      - Add BSS priority tables to the adapter structure
+ *      - For each interface, send the init commands to firmware
+ *      - Send the first command in command pending queue, if available
+ */
+int mwifiex_init_fw(struct mwifiex_adapter *adapter)
+{
+	int ret;
+	struct mwifiex_private *priv;
+	u8 i, first_sta = true;
+	int is_cmd_pend_q_empty;
+
+	adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
+
+	/* Allocate memory for member of adapter structure */
+	ret = mwifiex_allocate_adapter(adapter);
+	if (ret)
+		return -1;
+
+	/* Initialize adapter structure */
+	mwifiex_init_adapter(adapter);
+
+	for (i = 0; i < adapter->priv_num; i++) {
+		if (adapter->priv[i]) {
+			priv = adapter->priv[i];
+
+			/* Initialize private structure */
+			ret = mwifiex_init_priv(priv);
+			if (ret)
+				return -1;
+		}
+	}
+	if (adapter->mfg_mode) {
+		adapter->hw_status = MWIFIEX_HW_STATUS_READY;
+		ret = -EINPROGRESS;
+	} else {
+		for (i = 0; i < adapter->priv_num; i++) {
+			if (adapter->priv[i]) {
+				ret = mwifiex_sta_init_cmd(adapter->priv[i],
+							   first_sta, true);
+				if (ret == -1)
+					return -1;
+
+				first_sta = false;
+			}
+
+
+
+		}
+	}
+
+	spin_lock_bh(&adapter->cmd_pending_q_lock);
+	is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q);
+	spin_unlock_bh(&adapter->cmd_pending_q_lock);
+	if (!is_cmd_pend_q_empty) {
+		/* Send the first command in queue and return */
+		if (mwifiex_main_process(adapter) != -1)
+			ret = -EINPROGRESS;
+	} else {
+		adapter->hw_status = MWIFIEX_HW_STATUS_READY;
+	}
+
+	return ret;
+}
+
+/*
+ * This function deletes the BSS priority tables.
+ *
+ * The function traverses through all the allocated BSS priority nodes
+ * in every BSS priority table and frees them.
+ */
+static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv)
+{
+	int i;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct mwifiex_bss_prio_node *bssprio_node, *tmp_node;
+	struct list_head *head;
+	spinlock_t *lock; /* bss priority lock */
+
+	for (i = 0; i < adapter->priv_num; ++i) {
+		head = &adapter->bss_prio_tbl[i].bss_prio_head;
+		lock = &adapter->bss_prio_tbl[i].bss_prio_lock;
+		mwifiex_dbg(adapter, INFO,
+			    "info: delete BSS priority table,\t"
+			    "bss_type = %d, bss_num = %d, i = %d,\t"
+			    "head = %p\n",
+			    priv->bss_type, priv->bss_num, i, head);
+
+		{
+			spin_lock_bh(lock);
+			list_for_each_entry_safe(bssprio_node, tmp_node, head,
+						 list) {
+				if (bssprio_node->priv == priv) {
+					mwifiex_dbg(adapter, INFO,
+						    "info: Delete\t"
+						    "node %p, next = %p\n",
+						    bssprio_node, tmp_node);
+					list_del(&bssprio_node->list);
+					kfree(bssprio_node);
+				}
+			}
+			spin_unlock_bh(lock);
+		}
+	}
+}
+
+/*
+ * This function frees the private structure, including cleans
+ * up the TX and RX queues and frees the BSS priority tables.
+ */
+void mwifiex_free_priv(struct mwifiex_private *priv)
+{
+	mwifiex_clean_txrx(priv);
+	mwifiex_delete_bss_prio_tbl(priv);
+	mwifiex_free_curr_bcn(priv);
+}
+
+/*
+ * This function is used to shutdown the driver.
+ *
+ * The following operations are performed sequentially -
+ *      - Check if already shut down
+ *      - Make sure the main process has stopped
+ *      - Clean up the Tx and Rx queues
+ *      - Delete BSS priority tables
+ *      - Free the adapter
+ *      - Notify completion
+ */
+void
+mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
+{
+	struct mwifiex_private *priv;
+	s32 i;
+	struct sk_buff *skb;
+
+	/* mwifiex already shutdown */
+	if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)
+		return;
+
+	/* cancel current command */
+	if (adapter->curr_cmd) {
+		mwifiex_dbg(adapter, WARN,
+			    "curr_cmd is still in processing\n");
+		del_timer_sync(&adapter->cmd_timer);
+		mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
+		adapter->curr_cmd = NULL;
+	}
+
+	/* shut down mwifiex */
+	mwifiex_dbg(adapter, MSG,
+		    "info: shutdown mwifiex...\n");
+
+	/* Clean up Tx/Rx queues and delete BSS priority table */
+	for (i = 0; i < adapter->priv_num; i++) {
+		if (adapter->priv[i]) {
+			priv = adapter->priv[i];
+
+			mwifiex_clean_auto_tdls(priv);
+			mwifiex_abort_cac(priv);
+			mwifiex_free_priv(priv);
+		}
+	}
+
+	atomic_set(&adapter->tx_queued, 0);
+	while ((skb = skb_dequeue(&adapter->tx_data_q)))
+		mwifiex_write_data_complete(adapter, skb, 0, 0);
+
+	spin_lock_bh(&adapter->rx_proc_lock);
+
+	while ((skb = skb_dequeue(&adapter->rx_data_q))) {
+		struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb);
+
+		atomic_dec(&adapter->rx_pending);
+		priv = adapter->priv[rx_info->bss_num];
+		if (priv)
+			priv->stats.rx_dropped++;
+
+		dev_kfree_skb_any(skb);
+	}
+
+	spin_unlock_bh(&adapter->rx_proc_lock);
+
+	mwifiex_adapter_cleanup(adapter);
+
+	adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY;
+}
+
+/*
+ * This function downloads the firmware to the card.
+ *
+ * The actual download is preceded by two sanity checks -
+ *      - Check if firmware is already running
+ *      - Check if the interface is the winner to download the firmware
+ *
+ * ...and followed by another -
+ *      - Check if the firmware is downloaded successfully
+ *
+ * After download is successfully completed, the host interrupts are enabled.
+ */
+int mwifiex_dnld_fw(struct mwifiex_adapter *adapter,
+		    struct mwifiex_fw_image *pmfw)
+{
+	int ret;
+	u32 poll_num = 1;
+
+	/* check if firmware is already running */
+	ret = adapter->if_ops.check_fw_status(adapter, poll_num);
+	if (!ret) {
+		mwifiex_dbg(adapter, MSG,
+			    "WLAN FW already running! Skip FW dnld\n");
+		return 0;
+	}
+
+	/* check if we are the winner for downloading FW */
+	if (adapter->if_ops.check_winner_status) {
+		adapter->winner = 0;
+		ret = adapter->if_ops.check_winner_status(adapter);
+
+		poll_num = MAX_FIRMWARE_POLL_TRIES;
+		if (ret) {
+			mwifiex_dbg(adapter, MSG,
+				    "WLAN read winner status failed!\n");
+			return ret;
+		}
+
+		if (!adapter->winner) {
+			mwifiex_dbg(adapter, MSG,
+				    "WLAN is not the winner! Skip FW dnld\n");
+			goto poll_fw;
+		}
+	}
+
+	if (pmfw) {
+		/* Download firmware with helper */
+		ret = adapter->if_ops.prog_fw(adapter, pmfw);
+		if (ret) {
+			mwifiex_dbg(adapter, ERROR,
+				    "prog_fw failed ret=%#x\n", ret);
+			return ret;
+		}
+	}
+
+poll_fw:
+	/* Check if the firmware is downloaded successfully or not */
+	ret = adapter->if_ops.check_fw_status(adapter, poll_num);
+	if (ret)
+		mwifiex_dbg(adapter, ERROR,
+			    "FW failed to be active in time\n");
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mwifiex_dnld_fw);