net/mlx4_en: Move filters cleanup to a proper location

[linux/fpc-iii.git] / drivers / net / wireless / intel / iwlwifi / mvm / mvm.h

/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 * Copyright(c) 2016        Intel Deutschland GmbH
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
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 * WITHOUT ANY WARRANTY; without even the implied warranty of
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 * General Public License for more details.
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 * USA
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 * The full GNU General Public License is included in this distribution
 * in the file called COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 * Copyright(c) 2016        Intel Deutschland GmbH
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 *****************************************************************************/

#ifndef __IWL_MVM_H__
#define __IWL_MVM_H__

#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/leds.h>
#include <linux/in6.h>

#ifdef CONFIG_THERMAL
#include <linux/thermal.h>
#endif

#include "iwl-op-mode.h"
#include "iwl-trans.h"
#include "iwl-notif-wait.h"
#include "iwl-eeprom-parse.h"
#include "iwl-fw-file.h"
#include "iwl-config.h"
#include "sta.h"
#include "fw-api.h"
#include "constants.h"
#include "tof.h"

#define IWL_MVM_MAX_ADDRESSES           5
/* RSSI offset for WkP */
#define IWL_RSSI_OFFSET 50
#define IWL_MVM_MISSED_BEACONS_THRESHOLD 8
/* A TimeUnit is 1024 microsecond */
#define MSEC_TO_TU(_msec)       (_msec*1000/1024)

/* For GO, this value represents the number of TUs before CSA "beacon
 * 0" TBTT when the CSA time-event needs to be scheduled to start.  It
 * must be big enough to ensure that we switch in time.
 */
#define IWL_MVM_CHANNEL_SWITCH_TIME_GO          40

/* For client, this value represents the number of TUs before CSA
 * "beacon 1" TBTT, instead.  This is because we don't know when the
 * GO/AP will be in the new channel, so we switch early enough.
 */
#define IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT      10

/*
 * This value (in TUs) is used to fine tune the CSA NoA end time which should
 * be just before "beacon 0" TBTT.
 */
#define IWL_MVM_CHANNEL_SWITCH_MARGIN 4

/*
 * Number of beacons to transmit on a new channel until we unblock tx to
 * the stations, even if we didn't identify them on a new channel
 */
#define IWL_MVM_CS_UNBLOCK_TX_TIMEOUT 3

extern const struct ieee80211_ops iwl_mvm_hw_ops;

/**
 * struct iwl_mvm_mod_params - module parameters for iwlmvm
 * @init_dbg: if true, then the NIC won't be stopped if the INIT fw asserted.
 *      We will register to mac80211 to have testmode working. The NIC must not
 *      be up'ed after the INIT fw asserted. This is useful to be able to use
 *      proprietary tools over testmode to debug the INIT fw.
 * @tfd_q_hang_detect: enabled the detection of hung transmit queues
 * @power_scheme: one of enum iwl_power_scheme
 */
struct iwl_mvm_mod_params {
        bool init_dbg;
        bool tfd_q_hang_detect;
        int power_scheme;
};
extern struct iwl_mvm_mod_params iwlmvm_mod_params;

/**
 * struct iwl_mvm_dump_ptrs - set of pointers needed for the fw-error-dump
 *
 * @op_mode_ptr: pointer to the buffer coming from the mvm op_mode
 * @trans_ptr: pointer to struct %iwl_trans_dump_data which contains the
 *      transport's data.
 * @trans_len: length of the valid data in trans_ptr
 * @op_mode_len: length of the valid data in op_mode_ptr
 */
struct iwl_mvm_dump_ptrs {
        struct iwl_trans_dump_data *trans_ptr;
        void *op_mode_ptr;
        u32 op_mode_len;
};

/**
 * struct iwl_mvm_dump_desc - describes the dump
 * @len: length of trig_desc->data
 * @trig_desc: the description of the dump
 */
struct iwl_mvm_dump_desc {
        size_t len;
        /* must be last */
        struct iwl_fw_error_dump_trigger_desc trig_desc;
};

extern const struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert;

struct iwl_mvm_phy_ctxt {
        u16 id;
        u16 color;
        u32 ref;

        /*
         * TODO: This should probably be removed. Currently here only for rate
         * scaling algorithm
         */
        struct ieee80211_channel *channel;
};

struct iwl_mvm_time_event_data {
        struct ieee80211_vif *vif;
        struct list_head list;
        unsigned long end_jiffies;
        u32 duration;
        bool running;
        u32 uid;

        /*
         * The access to the 'id' field must be done when the
         * mvm->time_event_lock is held, as it value is used to indicate
         * if the te is in the time event list or not (when id == TE_MAX)
         */
        u32 id;
};

 /* Power management */

/**
 * enum iwl_power_scheme
 * @IWL_POWER_LEVEL_CAM - Continuously Active Mode
 * @IWL_POWER_LEVEL_BPS - Balanced Power Save (default)
 * @IWL_POWER_LEVEL_LP  - Low Power
 */
enum iwl_power_scheme {
        IWL_POWER_SCHEME_CAM = 1,
        IWL_POWER_SCHEME_BPS,
        IWL_POWER_SCHEME_LP
};

#define IWL_CONN_MAX_LISTEN_INTERVAL    10
#define IWL_UAPSD_MAX_SP                IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL

#ifdef CONFIG_IWLWIFI_DEBUGFS
enum iwl_dbgfs_pm_mask {
        MVM_DEBUGFS_PM_KEEP_ALIVE = BIT(0),
        MVM_DEBUGFS_PM_SKIP_OVER_DTIM = BIT(1),
        MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS = BIT(2),
        MVM_DEBUGFS_PM_RX_DATA_TIMEOUT = BIT(3),
        MVM_DEBUGFS_PM_TX_DATA_TIMEOUT = BIT(4),
        MVM_DEBUGFS_PM_LPRX_ENA = BIT(6),
        MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD = BIT(7),
        MVM_DEBUGFS_PM_SNOOZE_ENABLE = BIT(8),
        MVM_DEBUGFS_PM_UAPSD_MISBEHAVING = BIT(9),
        MVM_DEBUGFS_PM_USE_PS_POLL = BIT(10),
};

struct iwl_dbgfs_pm {
        u16 keep_alive_seconds;
        u32 rx_data_timeout;
        u32 tx_data_timeout;
        bool skip_over_dtim;
        u8 skip_dtim_periods;
        bool lprx_ena;
        u32 lprx_rssi_threshold;
        bool snooze_ena;
        bool uapsd_misbehaving;
        bool use_ps_poll;
        int mask;
};

/* beacon filtering */

enum iwl_dbgfs_bf_mask {
        MVM_DEBUGFS_BF_ENERGY_DELTA = BIT(0),
        MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA = BIT(1),
        MVM_DEBUGFS_BF_ROAMING_STATE = BIT(2),
        MVM_DEBUGFS_BF_TEMP_THRESHOLD = BIT(3),
        MVM_DEBUGFS_BF_TEMP_FAST_FILTER = BIT(4),
        MVM_DEBUGFS_BF_TEMP_SLOW_FILTER = BIT(5),
        MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER = BIT(6),
        MVM_DEBUGFS_BF_DEBUG_FLAG = BIT(7),
        MVM_DEBUGFS_BF_ESCAPE_TIMER = BIT(8),
        MVM_DEBUGFS_BA_ESCAPE_TIMER = BIT(9),
        MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT = BIT(10),
};

struct iwl_dbgfs_bf {
        u32 bf_energy_delta;
        u32 bf_roaming_energy_delta;
        u32 bf_roaming_state;
        u32 bf_temp_threshold;
        u32 bf_temp_fast_filter;
        u32 bf_temp_slow_filter;
        u32 bf_enable_beacon_filter;
        u32 bf_debug_flag;
        u32 bf_escape_timer;
        u32 ba_escape_timer;
        u32 ba_enable_beacon_abort;
        int mask;
};
#endif

enum iwl_mvm_smps_type_request {
        IWL_MVM_SMPS_REQ_BT_COEX,
        IWL_MVM_SMPS_REQ_TT,
        IWL_MVM_SMPS_REQ_PROT,
        NUM_IWL_MVM_SMPS_REQ,
};

enum iwl_mvm_ref_type {
        IWL_MVM_REF_UCODE_DOWN,
        IWL_MVM_REF_SCAN,
        IWL_MVM_REF_ROC,
        IWL_MVM_REF_ROC_AUX,
        IWL_MVM_REF_P2P_CLIENT,
        IWL_MVM_REF_AP_IBSS,
        IWL_MVM_REF_USER,
        IWL_MVM_REF_TX,
        IWL_MVM_REF_TX_AGG,
        IWL_MVM_REF_ADD_IF,
        IWL_MVM_REF_START_AP,
        IWL_MVM_REF_BSS_CHANGED,
        IWL_MVM_REF_PREPARE_TX,
        IWL_MVM_REF_PROTECT_TDLS,
        IWL_MVM_REF_CHECK_CTKILL,
        IWL_MVM_REF_PRPH_READ,
        IWL_MVM_REF_PRPH_WRITE,
        IWL_MVM_REF_NMI,
        IWL_MVM_REF_TM_CMD,
        IWL_MVM_REF_EXIT_WORK,
        IWL_MVM_REF_PROTECT_CSA,
        IWL_MVM_REF_FW_DBG_COLLECT,
        IWL_MVM_REF_INIT_UCODE,
        IWL_MVM_REF_SENDING_CMD,
        IWL_MVM_REF_RX,

        /* update debugfs.c when changing this */

        IWL_MVM_REF_COUNT,
};

enum iwl_bt_force_ant_mode {
        BT_FORCE_ANT_DIS = 0,
        BT_FORCE_ANT_AUTO,
        BT_FORCE_ANT_BT,
        BT_FORCE_ANT_WIFI,

        BT_FORCE_ANT_MAX,
};

/**
* struct iwl_mvm_vif_bf_data - beacon filtering related data
* @bf_enabled: indicates if beacon filtering is enabled
* @ba_enabled: indicated if beacon abort is enabled
* @ave_beacon_signal: average beacon signal
* @last_cqm_event: rssi of the last cqm event
* @bt_coex_min_thold: minimum threshold for BT coex
* @bt_coex_max_thold: maximum threshold for BT coex
* @last_bt_coex_event: rssi of the last BT coex event
*/
struct iwl_mvm_vif_bf_data {
        bool bf_enabled;
        bool ba_enabled;
        int ave_beacon_signal;
        int last_cqm_event;
        int bt_coex_min_thold;
        int bt_coex_max_thold;
        int last_bt_coex_event;
};

/**
 * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context
 * @id: between 0 and 3
 * @color: to solve races upon MAC addition and removal
 * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA
 * @bssid: BSSID for this (client) interface
 * @associated: indicates that we're currently associated, used only for
 *      managing the firmware state in iwl_mvm_bss_info_changed_station()
 * @ap_assoc_sta_count: count of stations associated to us - valid only
 *      if VIF type is AP
 * @uploaded: indicates the MAC context has been added to the device
 * @ap_ibss_active: indicates that AP/IBSS is configured and that the interface
 *      should get quota etc.
 * @pm_enabled - Indicate if MAC power management is allowed
 * @monitor_active: indicates that monitor context is configured, and that the
 *      interface should get quota etc.
 * @low_latency_traffic: indicates low latency traffic was detected
 * @low_latency_dbgfs: low latency mode set from debugfs
 * @low_latency_vcmd: low latency mode set from vendor command
 * @ps_disabled: indicates that this interface requires PS to be disabled
 * @queue_params: QoS params for this MAC
 * @bcast_sta: station used for broadcast packets. Used by the following
 *  vifs: P2P_DEVICE, GO and AP.
 * @beacon_skb: the skb used to hold the AP/GO beacon template
 * @smps_requests: the SMPS requests of different parts of the driver,
 *      combined on update to yield the overall request to mac80211.
 * @beacon_stats: beacon statistics, containing the # of received beacons,
 *      # of received beacons accumulated over FW restart, and the current
 *      average signal of beacons retrieved from the firmware
 * @csa_failed: CSA failed to schedule time event, report an error later
 * @features: hw features active for this vif
 */
struct iwl_mvm_vif {
        struct iwl_mvm *mvm;
        u16 id;
        u16 color;
        u8 ap_sta_id;

        u8 bssid[ETH_ALEN];
        bool associated;
        u8 ap_assoc_sta_count;

        bool uploaded;
        bool ap_ibss_active;
        bool pm_enabled;
        bool monitor_active;
        bool low_latency_traffic, low_latency_dbgfs, low_latency_vcmd;
        bool ps_disabled;
        struct iwl_mvm_vif_bf_data bf_data;

        struct {
                u32 num_beacons, accu_num_beacons;
                u8 avg_signal;
        } beacon_stats;

        u32 ap_beacon_time;

        enum iwl_tsf_id tsf_id;

        /*
         * QoS data from mac80211, need to store this here
         * as mac80211 has a separate callback but we need
         * to have the data for the MAC context
         */
        struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
        struct iwl_mvm_time_event_data time_event_data;
        struct iwl_mvm_time_event_data hs_time_event_data;

        struct iwl_mvm_int_sta bcast_sta;

        /*
         * Assigned while mac80211 has the interface in a channel context,
         * or, for P2P Device, while it exists.
         */
        struct iwl_mvm_phy_ctxt *phy_ctxt;

#ifdef CONFIG_PM
        /* WoWLAN GTK rekey data */
        struct {
                u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
                __le64 replay_ctr;
                bool valid;
        } rekey_data;

        int tx_key_idx;

        bool seqno_valid;
        u16 seqno;
#endif

#if IS_ENABLED(CONFIG_IPV6)
        /* IPv6 addresses for WoWLAN */
        struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX];
        unsigned long tentative_addrs[BITS_TO_LONGS(IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)];
        int num_target_ipv6_addrs;
#endif

#ifdef CONFIG_IWLWIFI_DEBUGFS
        struct dentry *dbgfs_dir;
        struct dentry *dbgfs_slink;
        struct iwl_dbgfs_pm dbgfs_pm;
        struct iwl_dbgfs_bf dbgfs_bf;
        struct iwl_mac_power_cmd mac_pwr_cmd;
        int dbgfs_quota_min;
#endif

        enum ieee80211_smps_mode smps_requests[NUM_IWL_MVM_SMPS_REQ];

        /* FW identified misbehaving AP */
        u8 uapsd_misbehaving_bssid[ETH_ALEN];

        /* Indicates that CSA countdown may be started */
        bool csa_countdown;
        bool csa_failed;

        /* TCP Checksum Offload */
        netdev_features_t features;

        /*
         * link quality measurement - used to check whether this interface
         * is in the middle of a link quality measurement
         */
        bool lqm_active;
};

static inline struct iwl_mvm_vif *
iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
{
        return (void *)vif->drv_priv;
}

extern const u8 tid_to_mac80211_ac[];

#define IWL_MVM_SCAN_STOPPING_SHIFT     8

enum iwl_scan_status {
        IWL_MVM_SCAN_REGULAR            = BIT(0),
        IWL_MVM_SCAN_SCHED              = BIT(1),
        IWL_MVM_SCAN_NETDETECT          = BIT(2),

        IWL_MVM_SCAN_STOPPING_REGULAR   = BIT(8),
        IWL_MVM_SCAN_STOPPING_SCHED     = BIT(9),
        IWL_MVM_SCAN_STOPPING_NETDETECT = BIT(10),

        IWL_MVM_SCAN_REGULAR_MASK       = IWL_MVM_SCAN_REGULAR |
                                          IWL_MVM_SCAN_STOPPING_REGULAR,
        IWL_MVM_SCAN_SCHED_MASK         = IWL_MVM_SCAN_SCHED |
                                          IWL_MVM_SCAN_STOPPING_SCHED,
        IWL_MVM_SCAN_NETDETECT_MASK     = IWL_MVM_SCAN_NETDETECT |
                                          IWL_MVM_SCAN_STOPPING_NETDETECT,

        IWL_MVM_SCAN_STOPPING_MASK      = 0xff << IWL_MVM_SCAN_STOPPING_SHIFT,
        IWL_MVM_SCAN_MASK               = 0xff,
};

enum iwl_mvm_scan_type {
        IWL_SCAN_TYPE_NOT_SET,
        IWL_SCAN_TYPE_UNASSOC,
        IWL_SCAN_TYPE_WILD,
        IWL_SCAN_TYPE_MILD,
        IWL_SCAN_TYPE_FRAGMENTED,
};

enum iwl_mvm_sched_scan_pass_all_states {
        SCHED_SCAN_PASS_ALL_DISABLED,
        SCHED_SCAN_PASS_ALL_ENABLED,
        SCHED_SCAN_PASS_ALL_FOUND,
};

/**
 * struct iwl_nvm_section - describes an NVM section in memory.
 *
 * This struct holds an NVM section read from the NIC using NVM_ACCESS_CMD,
 * and saved for later use by the driver. Not all NVM sections are saved
 * this way, only the needed ones.
 */
struct iwl_nvm_section {
        u16 length;
        const u8 *data;
};

/**
 * struct iwl_mvm_tt_mgnt - Thermal Throttling Management structure
 * @ct_kill_exit: worker to exit thermal kill
 * @dynamic_smps: Is thermal throttling enabled dynamic_smps?
 * @tx_backoff: The current thremal throttling tx backoff in uSec.
 * @min_backoff: The minimal tx backoff due to power restrictions
 * @params: Parameters to configure the thermal throttling algorithm.
 * @throttle: Is thermal throttling is active?
 */
struct iwl_mvm_tt_mgmt {
        struct delayed_work ct_kill_exit;
        bool dynamic_smps;
        u32 tx_backoff;
        u32 min_backoff;
        struct iwl_tt_params params;
        bool throttle;
};

#ifdef CONFIG_THERMAL
/**
 *struct iwl_mvm_thermal_device - thermal zone related data
 * @temp_trips: temperature thresholds for report
 * @fw_trips_index: keep indexes to original array - temp_trips
 * @tzone: thermal zone device data
*/
struct iwl_mvm_thermal_device {
        s16 temp_trips[IWL_MAX_DTS_TRIPS];
        u8 fw_trips_index[IWL_MAX_DTS_TRIPS];
        struct thermal_zone_device *tzone;
};

/*
 * struct iwl_mvm_cooling_device
 * @cur_state: current state
 * @cdev: struct thermal cooling device
 */
struct iwl_mvm_cooling_device {
        u32 cur_state;
        struct thermal_cooling_device *cdev;
};
#endif

#define IWL_MVM_NUM_LAST_FRAMES_UCODE_RATES 8

struct iwl_mvm_frame_stats {
        u32 legacy_frames;
        u32 ht_frames;
        u32 vht_frames;
        u32 bw_20_frames;
        u32 bw_40_frames;
        u32 bw_80_frames;
        u32 bw_160_frames;
        u32 sgi_frames;
        u32 ngi_frames;
        u32 siso_frames;
        u32 mimo2_frames;
        u32 agg_frames;
        u32 ampdu_count;
        u32 success_frames;
        u32 fail_frames;
        u32 last_rates[IWL_MVM_NUM_LAST_FRAMES_UCODE_RATES];
        int last_frame_idx;
};

enum {
        D0I3_DEFER_WAKEUP,
        D0I3_PENDING_WAKEUP,
};

#define IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 0xff
#define IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -100
#define IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 200

enum iwl_mvm_tdls_cs_state {
        IWL_MVM_TDLS_SW_IDLE = 0,
        IWL_MVM_TDLS_SW_REQ_SENT,
        IWL_MVM_TDLS_SW_RESP_RCVD,
        IWL_MVM_TDLS_SW_REQ_RCVD,
        IWL_MVM_TDLS_SW_ACTIVE,
};

struct iwl_mvm_shared_mem_cfg {
        u32 shared_mem_addr;
        u32 shared_mem_size;
        u32 sample_buff_addr;
        u32 sample_buff_size;
        u32 txfifo_addr;
        u32 txfifo_size[TX_FIFO_MAX_NUM];
        u32 rxfifo_size[RX_FIFO_MAX_NUM];
        u32 page_buff_addr;
        u32 page_buff_size;
        u32 rxfifo_addr;
        u32 internal_txfifo_addr;
        u32 internal_txfifo_size[TX_FIFO_INTERNAL_MAX_NUM];
};

/**
 * struct iwl_mvm_reorder_buffer - per ra/tid/queue reorder buffer
 * @head_sn: reorder window head sn
 * @num_stored: number of mpdus stored in the buffer
 * @buf_size: the reorder buffer size as set by the last addba request
 * @sta_id: sta id of this reorder buffer
 * @queue: queue of this reorder buffer
 * @last_amsdu: track last ASMDU SN for duplication detection
 * @last_sub_index: track ASMDU sub frame index for duplication detection
 * @entries: list of skbs stored
 * @reorder_time: time the packet was stored in the reorder buffer
 * @reorder_timer: timer for frames are in the reorder buffer. For AMSDU
 *      it is the time of last received sub-frame
 * @removed: prevent timer re-arming
 * @lock: protect reorder buffer internal state
 * @mvm: mvm pointer, needed for frame timer context
 */
struct iwl_mvm_reorder_buffer {
        u16 head_sn;
        u16 num_stored;
        u8 buf_size;
        u8 sta_id;
        int queue;
        u16 last_amsdu;
        u8 last_sub_index;
        struct sk_buff_head entries[IEEE80211_MAX_AMPDU_BUF];
        unsigned long reorder_time[IEEE80211_MAX_AMPDU_BUF];
        struct timer_list reorder_timer;
        bool removed;
        spinlock_t lock;
        struct iwl_mvm *mvm;
} ____cacheline_aligned_in_smp;

/**
 * struct iwl_mvm_baid_data - BA session data
 * @sta_id: station id
 * @tid: tid of the session
 * @baid baid of the session
 * @timeout: the timeout set in the addba request
 * @last_rx: last rx jiffies, updated only if timeout passed from last update
 * @session_timer: timer to check if BA session expired, runs at 2 * timeout
 * @mvm: mvm pointer, needed for timer context
 * @reorder_buf: reorder buffer, allocated per queue
 */
struct iwl_mvm_baid_data {
        struct rcu_head rcu_head;
        u8 sta_id;
        u8 tid;
        u8 baid;
        u16 timeout;
        unsigned long last_rx;
        struct timer_list session_timer;
        struct iwl_mvm *mvm;
        struct iwl_mvm_reorder_buffer reorder_buf[];
};

/*
 * enum iwl_mvm_queue_status - queue status
 * @IWL_MVM_QUEUE_FREE: the queue is not allocated nor reserved
 *      Basically, this means that this queue can be used for any purpose
 * @IWL_MVM_QUEUE_RESERVED: queue is reserved but not yet in use
 *      This is the state of a queue that has been dedicated for some RATID
 *      (agg'd or not), but that hasn't yet gone through the actual enablement
 *      of iwl_mvm_enable_txq(), and therefore no traffic can go through it yet.
 *      Note that in this state there is no requirement to already know what TID
 *      should be used with this queue, it is just marked as a queue that will
 *      be used, and shouldn't be allocated to anyone else.
 * @IWL_MVM_QUEUE_READY: queue is ready to be used
 *      This is the state of a queue that has been fully configured (including
 *      SCD pointers, etc), has a specific RA/TID assigned to it, and can be
 *      used to send traffic.
 */
enum iwl_mvm_queue_status {
        IWL_MVM_QUEUE_FREE,
        IWL_MVM_QUEUE_RESERVED,
        IWL_MVM_QUEUE_READY,
};

struct iwl_mvm {
        /* for logger access */
        struct device *dev;

        struct iwl_trans *trans;
        const struct iwl_fw *fw;
        const struct iwl_cfg *cfg;
        struct iwl_phy_db *phy_db;
        struct ieee80211_hw *hw;

        /* for protecting access to iwl_mvm */
        struct mutex mutex;
        struct list_head async_handlers_list;
        spinlock_t async_handlers_lock;
        struct work_struct async_handlers_wk;

        struct work_struct roc_done_wk;

        unsigned long status;

        u32 queue_sync_cookie;
        atomic_t queue_sync_counter;
        /*
         * for beacon filtering -
         * currently only one interface can be supported
         */
        struct iwl_mvm_vif *bf_allowed_vif;

        enum iwl_ucode_type cur_ucode;
        bool ucode_loaded;
        bool calibrating;
        u32 error_event_table;
        u32 log_event_table;
        u32 umac_error_event_table;
        bool support_umac_log;
        struct iwl_sf_region sf_space;

        u32 ampdu_ref;

        struct iwl_notif_wait_data notif_wait;

        struct mvm_statistics_rx rx_stats;

        struct {
                u64 rx_time;
                u64 tx_time;
                u64 on_time_rf;
                u64 on_time_scan;
        } radio_stats, accu_radio_stats;

        struct {
                /* Map to HW queue */
                u32 hw_queue_to_mac80211;
                u8 hw_queue_refcount;
                u8 ra_sta_id; /* The RA this queue is mapped to, if exists */
                u16 tid_bitmap; /* Bitmap of the TIDs mapped to this queue */
                enum iwl_mvm_queue_status status;
        } queue_info[IWL_MAX_HW_QUEUES];
        spinlock_t queue_info_lock; /* For syncing queue mgmt operations */
        struct work_struct add_stream_wk; /* To add streams to queues */
        atomic_t mac80211_queue_stop_count[IEEE80211_MAX_QUEUES];

        const char *nvm_file_name;
        struct iwl_nvm_data *nvm_data;
        /* NVM sections */
        struct iwl_nvm_section nvm_sections[NVM_MAX_NUM_SECTIONS];

        /* Paging section */
        struct iwl_fw_paging fw_paging_db[NUM_OF_FW_PAGING_BLOCKS];
        u16 num_of_paging_blk;
        u16 num_of_pages_in_last_blk;

        /* EEPROM MAC addresses */
        struct mac_address addresses[IWL_MVM_MAX_ADDRESSES];

        /* data related to data path */
        struct iwl_rx_phy_info last_phy_info;
        struct ieee80211_sta __rcu *fw_id_to_mac_id[IWL_MVM_STATION_COUNT];
        struct work_struct sta_drained_wk;
        unsigned long sta_deferred_frames[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];
        unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];
        atomic_t pending_frames[IWL_MVM_STATION_COUNT];
        u32 tfd_drained[IWL_MVM_STATION_COUNT];
        u8 rx_ba_sessions;

        /* configured by mac80211 */
        u32 rts_threshold;

        /* Scan status, cmd (pre-allocated) and auxiliary station */
        unsigned int scan_status;
        void *scan_cmd;
        struct iwl_mcast_filter_cmd *mcast_filter_cmd;
        enum iwl_mvm_scan_type scan_type;
        enum iwl_mvm_sched_scan_pass_all_states sched_scan_pass_all;
        struct timer_list scan_timer;

        /* max number of simultaneous scans the FW supports */
        unsigned int max_scans;

        /* ts of the beginning of a non-collect fw dbg data period */
        unsigned long fw_dbg_non_collect_ts_start[FW_DBG_TRIGGER_MAX - 1];

        /* UMAC scan tracking */
        u32 scan_uid_status[IWL_MVM_MAX_UMAC_SCANS];

        /* rx chain antennas set through debugfs for the scan command */
        u8 scan_rx_ant;

#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
        /* broadcast filters to configure for each associated station */
        const struct iwl_fw_bcast_filter *bcast_filters;
#ifdef CONFIG_IWLWIFI_DEBUGFS
        struct {
                bool override;
                struct iwl_bcast_filter_cmd cmd;
        } dbgfs_bcast_filtering;
#endif
#endif

        /* Internal station */
        struct iwl_mvm_int_sta aux_sta;
        struct iwl_mvm_int_sta snif_sta;

        bool last_ebs_successful;

        u8 scan_last_antenna_idx; /* to toggle TX between antennas */
        u8 mgmt_last_antenna_idx;

        /* last smart fifo state that was successfully sent to firmware */
        enum iwl_sf_state sf_state;

#ifdef CONFIG_IWLWIFI_DEBUGFS
        struct dentry *debugfs_dir;
        u32 dbgfs_sram_offset, dbgfs_sram_len;
        u32 dbgfs_prph_reg_addr;
        bool disable_power_off;
        bool disable_power_off_d3;

        bool scan_iter_notif_enabled;

        struct debugfs_blob_wrapper nvm_hw_blob;
        struct debugfs_blob_wrapper nvm_sw_blob;
        struct debugfs_blob_wrapper nvm_calib_blob;
        struct debugfs_blob_wrapper nvm_prod_blob;
        struct debugfs_blob_wrapper nvm_phy_sku_blob;

        struct iwl_mvm_frame_stats drv_rx_stats;
        spinlock_t drv_stats_lock;
        u16 dbgfs_rx_phyinfo;
#endif

        struct iwl_mvm_phy_ctxt phy_ctxts[NUM_PHY_CTX];

        struct list_head time_event_list;
        spinlock_t time_event_lock;

        /*
         * A bitmap indicating the index of the key in use. The firmware
         * can hold 16 keys at most. Reflect this fact.
         */
        unsigned long fw_key_table[BITS_TO_LONGS(STA_KEY_MAX_NUM)];
        u8 fw_key_deleted[STA_KEY_MAX_NUM];

        /* references taken by the driver and spinlock protecting them */
        spinlock_t refs_lock;
        u8 refs[IWL_MVM_REF_COUNT];

        u8 vif_count;

        /* -1 for always, 0 for never, >0 for that many times */
        s8 restart_fw;
        u8 fw_dbg_conf;
        struct delayed_work fw_dump_wk;
        const struct iwl_mvm_dump_desc *fw_dump_desc;
        const struct iwl_fw_dbg_trigger_tlv *fw_dump_trig;

#ifdef CONFIG_IWLWIFI_LEDS
        struct led_classdev led;
#endif

        struct ieee80211_vif *p2p_device_vif;

#ifdef CONFIG_PM
        struct wiphy_wowlan_support wowlan;
        int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;

        /* sched scan settings for net detect */
        struct ieee80211_scan_ies nd_ies;
        struct cfg80211_match_set *nd_match_sets;
        int n_nd_match_sets;
        struct ieee80211_channel **nd_channels;
        int n_nd_channels;
        bool net_detect;
#ifdef CONFIG_IWLWIFI_DEBUGFS
        bool d3_wake_sysassert;
        bool d3_test_active;
        bool store_d3_resume_sram;
        void *d3_resume_sram;
        u32 d3_test_pme_ptr;
        struct ieee80211_vif *keep_vif;
        u32 last_netdetect_scans; /* no. of scans in the last net-detect wake */
#endif
#endif

        /* d0i3 */
        u8 d0i3_ap_sta_id;
        bool d0i3_offloading;
        struct work_struct d0i3_exit_work;
        struct sk_buff_head d0i3_tx;
        /* protect d0i3_suspend_flags */
        struct mutex d0i3_suspend_mutex;
        unsigned long d0i3_suspend_flags;
        /* sync d0i3_tx queue and IWL_MVM_STATUS_IN_D0I3 status flag */
        spinlock_t d0i3_tx_lock;
        wait_queue_head_t d0i3_exit_waitq;

        /* BT-Coex */
        u8 bt_ack_kill_msk[NUM_PHY_CTX];
        u8 bt_cts_kill_msk[NUM_PHY_CTX];

        struct iwl_bt_coex_profile_notif_old last_bt_notif_old;
        struct iwl_bt_coex_ci_cmd_old last_bt_ci_cmd_old;
        struct iwl_bt_coex_profile_notif last_bt_notif;
        struct iwl_bt_coex_ci_cmd last_bt_ci_cmd;

        u32 last_ant_isol;
        u8 last_corun_lut;
        u8 bt_tx_prio;
        enum iwl_bt_force_ant_mode bt_force_ant_mode;

        /* Aux ROC */
        struct list_head aux_roc_te_list;

        /* Thermal Throttling and CTkill */
        struct iwl_mvm_tt_mgmt thermal_throttle;
#ifdef CONFIG_THERMAL
        struct iwl_mvm_thermal_device tz_device;
        struct iwl_mvm_cooling_device cooling_dev;
#endif

        s32 temperature;        /* Celsius */
        /*
         * Debug option to set the NIC temperature. This option makes the
         * driver think this is the actual NIC temperature, and ignore the
         * real temperature that is received from the fw
         */
        bool temperature_test;  /* Debug test temperature is enabled */

        struct iwl_time_quota_cmd last_quota_cmd;

#ifdef CONFIG_NL80211_TESTMODE
        u32 noa_duration;
        struct ieee80211_vif *noa_vif;
#endif

        /* Tx queues */
        u8 aux_queue;
        u8 first_agg_queue;
        u8 last_agg_queue;

        /* Indicate if device power save is allowed */
        u8 ps_disabled; /* u8 instead of bool to ease debugfs_create_* usage */
        unsigned int max_amsdu_len; /* used for debugfs only */

        struct ieee80211_vif __rcu *csa_vif;
        struct ieee80211_vif __rcu *csa_tx_blocked_vif;
        u8 csa_tx_block_bcn_timeout;

        /* system time of last beacon (for AP/GO interface) */
        u32 ap_last_beacon_gp2;

        bool lar_regdom_set;
        enum iwl_mcc_source mcc_src;

        /* TDLS channel switch data */
        struct {
                struct delayed_work dwork;
                enum iwl_mvm_tdls_cs_state state;

                /*
                 * Current cs sta - might be different from periodic cs peer
                 * station. Value is meaningless when the cs-state is idle.
                 */
                u8 cur_sta_id;

                /* TDLS periodic channel-switch peer */
                struct {
                        u8 sta_id;
                        u8 op_class;
                        bool initiator; /* are we the link initiator */
                        struct cfg80211_chan_def chandef;
                        struct sk_buff *skb; /* ch sw template */
                        u32 ch_sw_tm_ie;

                        /* timestamp of last ch-sw request sent (GP2 time) */
                        u32 sent_timestamp;
                } peer;
        } tdls_cs;

        struct iwl_mvm_shared_mem_cfg shared_mem_cfg;

        u32 ciphers[6];
        struct iwl_mvm_tof_data tof_data;

        struct ieee80211_vif *nan_vif;
#define IWL_MAX_BAID    32
        struct iwl_mvm_baid_data __rcu *baid_map[IWL_MAX_BAID];

        /*
         * Drop beacons from other APs in AP mode when there are no connected
         * clients.
         */
        bool drop_bcn_ap_mode;
};

/* Extract MVM priv from op_mode and _hw */
#define IWL_OP_MODE_GET_MVM(_iwl_op_mode)               \
        ((struct iwl_mvm *)(_iwl_op_mode)->op_mode_specific)

#define IWL_MAC80211_GET_MVM(_hw)                       \
        IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))

enum iwl_mvm_status {
        IWL_MVM_STATUS_HW_RFKILL,
        IWL_MVM_STATUS_HW_CTKILL,
        IWL_MVM_STATUS_ROC_RUNNING,
        IWL_MVM_STATUS_IN_HW_RESTART,
        IWL_MVM_STATUS_IN_D0I3,
        IWL_MVM_STATUS_ROC_AUX_RUNNING,
        IWL_MVM_STATUS_D3_RECONFIG,
        IWL_MVM_STATUS_DUMPING_FW_LOG,
};

static inline bool iwl_mvm_is_radio_killed(struct iwl_mvm *mvm)
{
        return test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status) ||
               test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
}

static inline bool iwl_mvm_is_radio_hw_killed(struct iwl_mvm *mvm)
{
        return test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
}

/* Must be called with rcu_read_lock() held and it can only be
 * released when mvmsta is not needed anymore.
 */
static inline struct iwl_mvm_sta *
iwl_mvm_sta_from_staid_rcu(struct iwl_mvm *mvm, u8 sta_id)
{
        struct ieee80211_sta *sta;

        if (sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))
                return NULL;

        sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);

        /* This can happen if the station has been removed right now */
        if (IS_ERR_OR_NULL(sta))
                return NULL;

        return iwl_mvm_sta_from_mac80211(sta);
}

static inline struct iwl_mvm_sta *
iwl_mvm_sta_from_staid_protected(struct iwl_mvm *mvm, u8 sta_id)
{
        struct ieee80211_sta *sta;

        if (sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))
                return NULL;

        sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
                                        lockdep_is_held(&mvm->mutex));

        /* This can happen if the station has been removed right now */
        if (IS_ERR_OR_NULL(sta))
                return NULL;

        return iwl_mvm_sta_from_mac80211(sta);
}

static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm)
{
        return !iwlwifi_mod_params.d0i3_disable &&
                fw_has_capa(&mvm->fw->ucode_capa,
                            IWL_UCODE_TLV_CAPA_D0I3_SUPPORT);
}

static inline bool iwl_mvm_is_dqa_supported(struct iwl_mvm *mvm)
{
        /* Make sure DQA isn't allowed in driver until feature is complete */
        return false && fw_has_capa(&mvm->fw->ucode_capa,
                                    IWL_UCODE_TLV_CAPA_DQA_SUPPORT);
}

static inline bool iwl_mvm_enter_d0i3_on_suspend(struct iwl_mvm *mvm)
{
        /* For now we only use this mode to differentiate between
         * slave transports, which handle D0i3 entry in suspend by
         * themselves in conjunction with runtime PM D0i3.  So, this
         * function is used to check whether we need to do anything
         * when entering suspend or if the transport layer has already
         * done it.
         */
        return (mvm->trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3) &&
                (mvm->trans->runtime_pm_mode != IWL_PLAT_PM_MODE_D0I3);
}

static inline bool iwl_mvm_is_lar_supported(struct iwl_mvm *mvm)
{
        bool nvm_lar = mvm->nvm_data->lar_enabled;
        bool tlv_lar = fw_has_capa(&mvm->fw->ucode_capa,
                                   IWL_UCODE_TLV_CAPA_LAR_SUPPORT);

        if (iwlwifi_mod_params.lar_disable)
                return false;

        /*
         * Enable LAR only if it is supported by the FW (TLV) &&
         * enabled in the NVM
         */
        if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000)
                return nvm_lar && tlv_lar;
        else
                return tlv_lar;
}

static inline bool iwl_mvm_is_wifi_mcc_supported(struct iwl_mvm *mvm)
{
        return fw_has_api(&mvm->fw->ucode_capa,
                          IWL_UCODE_TLV_API_WIFI_MCC_UPDATE) ||
               fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_LAR_MULTI_MCC);
}

static inline bool iwl_mvm_bt_is_plcr_supported(struct iwl_mvm *mvm)
{
        return fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_BT_COEX_PLCR) &&
                IWL_MVM_BT_COEX_CORUNNING;
}

static inline bool iwl_mvm_bt_is_rrc_supported(struct iwl_mvm *mvm)
{
        return fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_BT_COEX_RRC) &&
                IWL_MVM_BT_COEX_RRC;
}

static inline bool iwl_mvm_is_csum_supported(struct iwl_mvm *mvm)
{
        return fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_CSUM_SUPPORT) &&
               !IWL_MVM_HW_CSUM_DISABLE;
}

static inline bool iwl_mvm_is_mplut_supported(struct iwl_mvm *mvm)
{
        return fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_BT_MPLUT_SUPPORT) &&
                IWL_MVM_BT_COEX_MPLUT;
}

static inline
bool iwl_mvm_is_p2p_standalone_uapsd_supported(struct iwl_mvm *mvm)
{
        return fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_P2P_STANDALONE_UAPSD) &&
                !(iwlwifi_mod_params.uapsd_disable &
                  IWL_DISABLE_UAPSD_P2P_CLIENT);
}

static inline bool iwl_mvm_has_new_rx_api(struct iwl_mvm *mvm)
{
        return fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_MULTI_QUEUE_RX_SUPPORT);
}

static inline bool iwl_mvm_is_tt_in_fw(struct iwl_mvm *mvm)
{
#ifdef CONFIG_THERMAL
        /* these two TLV are redundant since the responsibility to CT-kill by
         * FW happens only after we send at least one command of
         * temperature THs report.
         */
        return fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_CT_KILL_BY_FW) &&
               fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_TEMP_THS_REPORT_SUPPORT);
#else /* CONFIG_THERMAL */
        return false;
#endif /* CONFIG_THERMAL */
}

static inline bool iwl_mvm_is_ctdp_supported(struct iwl_mvm *mvm)
{
        return fw_has_capa(&mvm->fw->ucode_capa,
                           IWL_UCODE_TLV_CAPA_CTDP_SUPPORT);
}

extern const u8 iwl_mvm_ac_to_tx_fifo[];

struct iwl_rate_info {
        u8 plcp;        /* uCode API:  IWL_RATE_6M_PLCP, etc. */
        u8 plcp_siso;   /* uCode API:  IWL_RATE_SISO_6M_PLCP, etc. */
        u8 plcp_mimo2;  /* uCode API:  IWL_RATE_MIMO2_6M_PLCP, etc. */
        u8 plcp_mimo3;  /* uCode API:  IWL_RATE_MIMO3_6M_PLCP, etc. */
        u8 ieee;        /* MAC header:  IWL_RATE_6M_IEEE, etc. */
};

void __iwl_mvm_mac_stop(struct iwl_mvm *mvm);
int __iwl_mvm_mac_start(struct iwl_mvm *mvm);

/******************
 * MVM Methods
 ******************/
/* uCode */
int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);

/* Utils */
int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
                                        enum nl80211_band band);
void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags,
                               enum nl80211_band band,
                               struct ieee80211_tx_rate *r);
u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
u8 first_antenna(u8 mask);
u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);

/* Tx / Host Commands */
int __must_check iwl_mvm_send_cmd(struct iwl_mvm *mvm,
                                  struct iwl_host_cmd *cmd);
int __must_check iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id,
                                      u32 flags, u16 len, const void *data);
int __must_check iwl_mvm_send_cmd_status(struct iwl_mvm *mvm,
                                         struct iwl_host_cmd *cmd,
                                         u32 *status);
int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id,
                                             u16 len, const void *data,
                                             u32 *status);
int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
                   struct ieee80211_sta *sta);
int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
                        struct iwl_tx_cmd *tx_cmd,
                        struct ieee80211_tx_info *info, u8 sta_id);
void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd,
                            struct ieee80211_tx_info *info,
                            struct ieee80211_sta *sta, __le16 fc);
#ifdef CONFIG_IWLWIFI_DEBUG
const char *iwl_mvm_get_tx_fail_reason(u32 status);
#else
static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
#endif
int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, u32 flags);
void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);

static inline void iwl_mvm_set_tx_cmd_ccmp(struct ieee80211_tx_info *info,
                                           struct iwl_tx_cmd *tx_cmd)
{
        struct ieee80211_key_conf *keyconf = info->control.hw_key;

        tx_cmd->sec_ctl = TX_CMD_SEC_CCM;
        memcpy(tx_cmd->key, keyconf->key, keyconf->keylen);
        if (info->flags & IEEE80211_TX_CTL_AMPDU)
                tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_CCMP_AGG);
}

static inline void iwl_mvm_wait_for_async_handlers(struct iwl_mvm *mvm)
{
        flush_work(&mvm->async_handlers_wk);
}

/* Statistics */
void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm,
                                  struct iwl_rx_packet *pkt);
void iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
                           struct iwl_rx_cmd_buffer *rxb);
int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear);
void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm);

/* NVM */
int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic);
int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm);

static inline u8 iwl_mvm_get_valid_tx_ant(struct iwl_mvm *mvm)
{
        return mvm->nvm_data && mvm->nvm_data->valid_tx_ant ?
               mvm->fw->valid_tx_ant & mvm->nvm_data->valid_tx_ant :
               mvm->fw->valid_tx_ant;
}

static inline u8 iwl_mvm_get_valid_rx_ant(struct iwl_mvm *mvm)
{
        return mvm->nvm_data && mvm->nvm_data->valid_rx_ant ?
               mvm->fw->valid_rx_ant & mvm->nvm_data->valid_rx_ant :
               mvm->fw->valid_rx_ant;
}

static inline u32 iwl_mvm_get_phy_config(struct iwl_mvm *mvm)
{
        u32 phy_config = ~(FW_PHY_CFG_TX_CHAIN |
                           FW_PHY_CFG_RX_CHAIN);
        u32 valid_rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
        u32 valid_tx_ant = iwl_mvm_get_valid_tx_ant(mvm);

        phy_config |= valid_tx_ant << FW_PHY_CFG_TX_CHAIN_POS |
                      valid_rx_ant << FW_PHY_CFG_RX_CHAIN_POS;

        return mvm->fw->phy_config & phy_config;
}

int iwl_mvm_up(struct iwl_mvm *mvm);
int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);

int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
                                    struct iwl_bcast_filter_cmd *cmd);

/*
 * FW notifications / CMD responses handlers
 * Convention: iwl_mvm_rx_<NAME OF THE CMD>
 */
void iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi,
                        struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_phy_cmd_mq(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
                        struct iwl_rx_cmd_buffer *rxb, int queue);
void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
                              struct iwl_rx_cmd_buffer *rxb, int queue);
int iwl_mvm_notify_rx_queue(struct iwl_mvm *mvm, u32 rxq_mask,
                            const u8 *data, u32 count);
void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
                            int queue);
void iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
                                   struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
                                 struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_mfuart_notif(struct iwl_mvm *mvm,
                             struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_shared_mem_cfg_notif(struct iwl_mvm *mvm,
                                     struct iwl_rx_cmd_buffer *rxb);

/* MVM PHY */
int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
                         struct cfg80211_chan_def *chandef,
                         u8 chains_static, u8 chains_dynamic);
int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
                             struct cfg80211_chan_def *chandef,
                             u8 chains_static, u8 chains_dynamic);
void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm,
                          struct iwl_mvm_phy_ctxt *ctxt);
void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm,
                            struct iwl_mvm_phy_ctxt *ctxt);
int iwl_mvm_phy_ctx_count(struct iwl_mvm *mvm);
u8 iwl_mvm_get_channel_width(struct cfg80211_chan_def *chandef);
u8 iwl_mvm_get_ctrl_pos(struct cfg80211_chan_def *chandef);

/* MAC (virtual interface) programming */
int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                             bool force_assoc_off, const u8 *bssid_override);
int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif);
int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
                                    struct ieee80211_vif *vif);
void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
                             struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,
                                     struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm,
                                    struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
                               struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_window_status_notif(struct iwl_mvm *mvm,
                                 struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm,
                                    struct ieee80211_vif *vif);
unsigned long iwl_mvm_get_used_hw_queues(struct iwl_mvm *mvm,
                                         struct ieee80211_vif *exclude_vif);
/* Bindings */
int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);

/* Quota management */
int iwl_mvm_update_quotas(struct iwl_mvm *mvm, bool force_upload,
                          struct ieee80211_vif *disabled_vif);

/* Scanning */
int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                           struct cfg80211_scan_request *req,
                           struct ieee80211_scan_ies *ies);
int iwl_mvm_scan_size(struct iwl_mvm *mvm);
int iwl_mvm_scan_stop(struct iwl_mvm *mvm, int type, bool notify);
int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm);
void iwl_mvm_report_scan_aborted(struct iwl_mvm *mvm);
void iwl_mvm_scan_timeout(unsigned long data);

/* Scheduled scan */
void iwl_mvm_rx_lmac_scan_complete_notif(struct iwl_mvm *mvm,
                                         struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_lmac_scan_iter_complete_notif(struct iwl_mvm *mvm,
                                              struct iwl_rx_cmd_buffer *rxb);
int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
                             struct ieee80211_vif *vif,
                             struct cfg80211_sched_scan_request *req,
                             struct ieee80211_scan_ies *ies,
                             int type);
void iwl_mvm_rx_scan_match_found(struct iwl_mvm *mvm,
                                 struct iwl_rx_cmd_buffer *rxb);

/* UMAC scan */
int iwl_mvm_config_scan(struct iwl_mvm *mvm);
void iwl_mvm_rx_umac_scan_complete_notif(struct iwl_mvm *mvm,
                                         struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_rx_umac_scan_iter_complete_notif(struct iwl_mvm *mvm,
                                              struct iwl_rx_cmd_buffer *rxb);

/* Paging */
void iwl_free_fw_paging(struct iwl_mvm *mvm);

/* MVM debugfs */
#ifdef CONFIG_IWLWIFI_DEBUGFS
int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
#else
static inline int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm,
                                         struct dentry *dbgfs_dir)
{
        return 0;
}
static inline void
iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
}
static inline void
iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
}
#endif /* CONFIG_IWLWIFI_DEBUGFS */

/* rate scaling */
int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init);
void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm, u32 rate, bool agg);
int rs_pretty_print_rate(char *buf, const u32 rate);
void rs_update_last_rssi(struct iwl_mvm *mvm,
                         struct iwl_lq_sta *lq_sta,
                         struct ieee80211_rx_status *rx_status);

/* power management */
int iwl_mvm_power_update_device(struct iwl_mvm *mvm);
int iwl_mvm_power_update_mac(struct iwl_mvm *mvm);
int iwl_mvm_power_update_ps(struct iwl_mvm *mvm);
int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                                 char *buf, int bufsz);

void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
                                              struct iwl_rx_cmd_buffer *rxb);

#ifdef CONFIG_IWLWIFI_LEDS
int iwl_mvm_leds_init(struct iwl_mvm *mvm);
void iwl_mvm_leds_exit(struct iwl_mvm *mvm);
#else
static inline int iwl_mvm_leds_init(struct iwl_mvm *mvm)
{
        return 0;
}
static inline void iwl_mvm_leds_exit(struct iwl_mvm *mvm)
{
}
#endif

/* D3 (WoWLAN, NetDetect) */
int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
int iwl_mvm_resume(struct ieee80211_hw *hw);
void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
                            struct ieee80211_vif *vif,
                            struct cfg80211_gtk_rekey_data *data);
void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
                              struct ieee80211_vif *vif,
                              struct inet6_dev *idev);
void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
                                     struct ieee80211_vif *vif, int idx);
extern const struct file_operations iwl_dbgfs_d3_test_ops;
#ifdef CONFIG_PM
int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
                                     struct ieee80211_vif *vif,
                                     bool host_awake,
                                     u32 cmd_flags);
void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
                              struct ieee80211_vif *vif,
                              struct iwl_wowlan_status *status);
void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm,
                                 struct ieee80211_vif *vif);
#else
static inline int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
                                                   struct ieee80211_vif *vif,
                                                   bool host_awake,
                                                   u32 cmd_flags)
{
        return 0;
}

static inline void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
                                            struct ieee80211_vif *vif,
                                            struct iwl_wowlan_status *status)
{
}

static inline void
iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
}
#endif
void iwl_mvm_set_wowlan_qos_seq(struct iwl_mvm_sta *mvm_ap_sta,
                                struct iwl_wowlan_config_cmd *cmd);
int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
                               struct ieee80211_vif *vif,
                               bool disable_offloading,
                               bool offload_ns,
                               u32 cmd_flags);

/* D0i3 */
void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type);
void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type);
int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type);
bool iwl_mvm_ref_taken(struct iwl_mvm *mvm);
void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq);
int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode);
int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode);
int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm);

/* BT Coex */
int iwl_send_bt_init_conf(struct iwl_mvm *mvm);
void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
                              struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                           enum ieee80211_rssi_event_data);
void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm);
u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
                                struct ieee80211_sta *sta);
bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
                                     struct ieee80211_sta *sta);
bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant);
bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm);
bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
                                    enum nl80211_band band);
u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
                           struct ieee80211_tx_info *info, u8 ac);

/* beacon filtering */
#ifdef CONFIG_IWLWIFI_DEBUGFS
void
iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
                                         struct iwl_beacon_filter_cmd *cmd);
#else
static inline void
iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
                                         struct iwl_beacon_filter_cmd *cmd)
{}
#endif
int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
                                   struct ieee80211_vif *vif,
                                   bool enable, u32 flags);
int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
                                 struct ieee80211_vif *vif,
                                 u32 flags);
int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
                                  struct ieee80211_vif *vif,
                                  u32 flags);
/* SMPS */
void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                                enum iwl_mvm_smps_type_request req_type,
                                enum ieee80211_smps_mode smps_request);
bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm);

/* Low latency */
int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                               bool value);
/* get SystemLowLatencyMode - only needed for beacon threshold? */
bool iwl_mvm_low_latency(struct iwl_mvm *mvm);
/* get VMACLowLatencyMode */
static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)
{
        /*
         * should this consider associated/active/... state?
         *
         * Normally low-latency should only be active on interfaces
         * that are active, but at least with debugfs it can also be
         * enabled on interfaces that aren't active. However, when
         * interface aren't active then they aren't added into the
         * binding, so this has no real impact. For now, just return
         * the current desired low-latency state.
         */
        return mvmvif->low_latency_dbgfs ||
               mvmvif->low_latency_traffic ||
               mvmvif->low_latency_vcmd;
}

/* hw scheduler queue config */
void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
                        u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg,
                        unsigned int wdg_timeout);
/*
 * Disable a TXQ.
 * Note that in non-DQA mode the %mac80211_queue and %tid params are ignored.
 */
void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
                         u8 tid, u8 flags);
int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 minq, u8 maxq);

/* Return a bitmask with all the hw supported queues, except for the
 * command queue, which can't be flushed.
 */
static inline u32 iwl_mvm_flushable_queues(struct iwl_mvm *mvm)
{
        return ((BIT(mvm->cfg->base_params->num_of_queues) - 1) &
                ~BIT(IWL_MVM_CMD_QUEUE));
}

static inline
void iwl_mvm_enable_ac_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
                           u8 fifo, u16 ssn, unsigned int wdg_timeout)
{
        struct iwl_trans_txq_scd_cfg cfg = {
                .fifo = fifo,
                .tid = IWL_MAX_TID_COUNT,
                .aggregate = false,
                .frame_limit = IWL_FRAME_LIMIT,
        };

        iwl_mvm_enable_txq(mvm, queue, mac80211_queue, ssn, &cfg, wdg_timeout);
}

static inline void iwl_mvm_stop_device(struct iwl_mvm *mvm)
{
        mvm->ucode_loaded = false;
        iwl_trans_stop_device(mvm->trans);
}

/* Stop/start all mac queues in a given bitmap */
void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq);
void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq);

/* Re-configure the SCD for a queue that has already been configured */
int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id,
                         int tid, int frame_limit, u16 ssn);

/* Thermal management and CT-kill */
void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff);
void iwl_mvm_tt_temp_changed(struct iwl_mvm *mvm, u32 temp);
void iwl_mvm_temp_notif(struct iwl_mvm *mvm,
                        struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_tt_handler(struct iwl_mvm *mvm);
void iwl_mvm_thermal_initialize(struct iwl_mvm *mvm, u32 min_backoff);
void iwl_mvm_thermal_exit(struct iwl_mvm *mvm);
void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state);
int iwl_mvm_get_temp(struct iwl_mvm *mvm, s32 *temp);
void iwl_mvm_ct_kill_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
int iwl_mvm_send_temp_report_ths_cmd(struct iwl_mvm *mvm);
int iwl_mvm_ctdp_command(struct iwl_mvm *mvm, u32 op, u32 budget);

/* Location Aware Regulatory */
struct iwl_mcc_update_resp *
iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2,
                   enum iwl_mcc_source src_id);
int iwl_mvm_init_mcc(struct iwl_mvm *mvm);
void iwl_mvm_rx_chub_update_mcc(struct iwl_mvm *mvm,
                                struct iwl_rx_cmd_buffer *rxb);
struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
                                                  const char *alpha2,
                                                  enum iwl_mcc_source src_id,
                                                  bool *changed);
struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
                                                          bool *changed);
int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm);
void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm);

/* smart fifo */
int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                      bool added_vif);

/* TDLS */

/*
 * We use TID 4 (VI) as a FW-used-only TID when TDLS connections are present.
 * This TID is marked as used vs the AP and all connected TDLS peers.
 */
#define IWL_MVM_TDLS_FW_TID 4

int iwl_mvm_tdls_sta_count(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
void iwl_mvm_teardown_tdls_peers(struct iwl_mvm *mvm);
void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                               bool sta_added);
void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw *hw,
                                           struct ieee80211_vif *vif);
int iwl_mvm_tdls_channel_switch(struct ieee80211_hw *hw,
                                struct ieee80211_vif *vif,
                                struct ieee80211_sta *sta, u8 oper_class,
                                struct cfg80211_chan_def *chandef,
                                struct sk_buff *tmpl_skb, u32 ch_sw_tm_ie);
void iwl_mvm_tdls_recv_channel_switch(struct ieee80211_hw *hw,
                                      struct ieee80211_vif *vif,
                                      struct ieee80211_tdls_ch_sw_params *params);
void iwl_mvm_tdls_cancel_channel_switch(struct ieee80211_hw *hw,
                                        struct ieee80211_vif *vif,
                                        struct ieee80211_sta *sta);
void iwl_mvm_rx_tdls_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
void iwl_mvm_tdls_ch_switch_work(struct work_struct *work);

void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
                                     struct iwl_mvm_internal_rxq_notif *notif,
                                     u32 size);
void iwl_mvm_reorder_timer_expired(unsigned long data);
struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm);

void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error);
unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm,
                                    struct ieee80211_vif *vif,
                                    bool tdls, bool cmd_q);
void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
                             const char *errmsg);

/* Link Quality Measurement */
int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif,
                         enum iwl_lqm_cmd_operatrions operation,
                         u32 duration, u32 timeout);
bool iwl_mvm_lqm_active(struct iwl_mvm *mvm);

#endif /* __IWL_MVM_H__ */