drivers/net/wireless/mac80211_hwsim.h - kernel/common - Git at Google

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
  * Copyright (c) 2008, Jouni Malinen <[email protected]>
  * Copyright (c) 2011, Javier Lopez <[email protected]>
  * Copyright (C) 2020 Intel Corporation
  */

 #ifndef __MAC80211_HWSIM_H
 #define __MAC80211_HWSIM_H

 /**
  * enum hwsim_tx_control_flags - flags to describe transmission info/status
  *
  * These flags are used to give the wmediumd extra information in order to
  * modify its behavior for each frame
  *
  * @HWSIM_TX_CTL_REQ_TX_STATUS: require TX status callback for this frame.
  * @HWSIM_TX_CTL_NO_ACK: tell the wmediumd not to wait for an ack
  * @HWSIM_TX_STAT_ACK: Frame was acknowledged
  *
  */
 enum hwsim_tx_control_flags {
 	HWSIM_TX_CTL_REQ_TX_STATUS		= BIT(0),
 	HWSIM_TX_CTL_NO_ACK			= BIT(1),
 	HWSIM_TX_STAT_ACK			= BIT(2),
 };

 /**
  * DOC: Frame transmission/registration support
  *
  * Frame transmission and registration support exists to allow userspace
  * entities such as wmediumd to receive and process all broadcasted
  * frames from a mac80211_hwsim radio device.
  *
  * This allow user space applications to decide if the frame should be
  * dropped or not and implement a wireless medium simulator at user space.
  *
  * Registration is done by sending a register message to the driver and
  * will be automatically unregistered if the user application doesn't
  * responds to sent frames.
  * Once registered the user application has to take responsibility of
  * broadcasting the frames to all listening mac80211_hwsim radio
  * interfaces.
  *
  * For more technical details, see the corresponding command descriptions
  * below.
  */

 /**
  * enum hwsim_commands - supported hwsim commands
  *
  * @HWSIM_CMD_UNSPEC: unspecified command to catch errors
  *
  * @HWSIM_CMD_REGISTER: request to register and received all broadcasted
  *	frames by any mac80211_hwsim radio device.
  * @HWSIM_CMD_FRAME: send/receive a broadcasted frame from/to kernel/user
  *	space, uses:
  *	%HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_ADDR_RECEIVER,
  *	%HWSIM_ATTR_FRAME, %HWSIM_ATTR_FLAGS, %HWSIM_ATTR_RX_RATE,
  *	%HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE, %HWSIM_ATTR_FREQ (optional)
  * @HWSIM_CMD_TX_INFO_FRAME: Transmission info report from user space to
  *	kernel, uses:
  *	%HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_FLAGS,
  *	%HWSIM_ATTR_TX_INFO, %WSIM_ATTR_TX_INFO_FLAGS,
  *	%HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE
  * @HWSIM_CMD_NEW_RADIO: create a new radio with the given parameters,
  *	returns the radio ID (>= 0) or negative on errors, if successful
  *	then multicast the result, uses optional parameter:
  *	%HWSIM_ATTR_REG_STRICT_REG, %HWSIM_ATTR_SUPPORT_P2P_DEVICE,
  *	%HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE, %HWSIM_ATTR_CHANNELS,
  *	%HWSIM_ATTR_NO_VIF, %HWSIM_ATTR_RADIO_NAME, %HWSIM_ATTR_USE_CHANCTX,
  *	%HWSIM_ATTR_REG_HINT_ALPHA2, %HWSIM_ATTR_REG_CUSTOM_REG,
  *	%HWSIM_ATTR_PERM_ADDR
  * @HWSIM_CMD_DEL_RADIO: destroy a radio, reply is multicasted
  * @HWSIM_CMD_GET_RADIO: fetch information about existing radios, uses:
  *	%HWSIM_ATTR_RADIO_ID
  * @HWSIM_CMD_ADD_MAC_ADDR: add a receive MAC address (given in the
  *	%HWSIM_ATTR_ADDR_RECEIVER attribute) to a device identified by
  *	%HWSIM_ATTR_ADDR_TRANSMITTER. This lets wmediumd forward frames
  *	to this receiver address for a given station.
  * @HWSIM_CMD_DEL_MAC_ADDR: remove the MAC address again, the attributes
  *	are the same as to @HWSIM_CMD_ADD_MAC_ADDR.
  * @__HWSIM_CMD_MAX: enum limit
  */
 enum {
 	HWSIM_CMD_UNSPEC,
 	HWSIM_CMD_REGISTER,
 	HWSIM_CMD_FRAME,
 	HWSIM_CMD_TX_INFO_FRAME,
 	HWSIM_CMD_NEW_RADIO,
 	HWSIM_CMD_DEL_RADIO,
 	HWSIM_CMD_GET_RADIO,
 	HWSIM_CMD_ADD_MAC_ADDR,
 	HWSIM_CMD_DEL_MAC_ADDR,
 	__HWSIM_CMD_MAX,
 };
 #define HWSIM_CMD_MAX (_HWSIM_CMD_MAX - 1)

 #define HWSIM_CMD_CREATE_RADIO   HWSIM_CMD_NEW_RADIO
 #define HWSIM_CMD_DESTROY_RADIO  HWSIM_CMD_DEL_RADIO

 /**
  * enum hwsim_attrs - hwsim netlink attributes
  *
  * @HWSIM_ATTR_UNSPEC: unspecified attribute to catch errors
  *
  * @HWSIM_ATTR_ADDR_RECEIVER: MAC address of the radio device that
  *	the frame is broadcasted to
  * @HWSIM_ATTR_ADDR_TRANSMITTER: MAC address of the radio device that
  *	the frame was broadcasted from
  * @HWSIM_ATTR_FRAME: Data array
  * @HWSIM_ATTR_FLAGS: mac80211 transmission flags, used to process
 	properly the frame at user space
  * @HWSIM_ATTR_RX_RATE: estimated rx rate index for this frame at user
 	space
  * @HWSIM_ATTR_SIGNAL: estimated RX signal for this frame at user
 	space
  * @HWSIM_ATTR_TX_INFO: ieee80211_tx_rate array
  * @HWSIM_ATTR_COOKIE: sk_buff cookie to identify the frame
  * @HWSIM_ATTR_CHANNELS: u32 attribute used with the %HWSIM_CMD_CREATE_RADIO
  *	command giving the number of channels supported by the new radio
  * @HWSIM_ATTR_RADIO_ID: u32 attribute used with %HWSIM_CMD_DESTROY_RADIO
  *	only to destroy a radio
  * @HWSIM_ATTR_REG_HINT_ALPHA2: alpha2 for regulatoro driver hint
  *	(nla string, length 2)
  * @HWSIM_ATTR_REG_CUSTOM_REG: custom regulatory domain index (u32 attribute)
  * @HWSIM_ATTR_REG_STRICT_REG: request REGULATORY_STRICT_REG (flag attribute)
  * @HWSIM_ATTR_SUPPORT_P2P_DEVICE: support P2P Device virtual interface (flag)
  * @HWSIM_ATTR_USE_CHANCTX: used with the %HWSIM_CMD_CREATE_RADIO
  *	command to force use of channel contexts even when only a
  *	single channel is supported
  * @HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE: used with the %HWSIM_CMD_CREATE_RADIO
  *	command to force radio removal when process that created the radio dies
  * @HWSIM_ATTR_RADIO_NAME: Name of radio, e.g. phy666
  * @HWSIM_ATTR_NO_VIF:  Do not create vif (wlanX) when creating radio.
  * @HWSIM_ATTR_FREQ: Frequency at which packet is transmitted or received.
  * @HWSIM_ATTR_TX_INFO_FLAGS: additional flags for corresponding
  *	rates of %HWSIM_ATTR_TX_INFO
  * @HWSIM_ATTR_PERM_ADDR: permanent mac address of new radio
  * @HWSIM_ATTR_IFTYPE_SUPPORT: u32 attribute of supported interface types bits
  * @HWSIM_ATTR_CIPHER_SUPPORT: u32 array of supported cipher types
  * @__HWSIM_ATTR_MAX: enum limit
  */


 enum {
 	HWSIM_ATTR_UNSPEC,
 	HWSIM_ATTR_ADDR_RECEIVER,
 	HWSIM_ATTR_ADDR_TRANSMITTER,
 	HWSIM_ATTR_FRAME,
 	HWSIM_ATTR_FLAGS,
 	HWSIM_ATTR_RX_RATE,
 	HWSIM_ATTR_SIGNAL,
 	HWSIM_ATTR_TX_INFO,
 	HWSIM_ATTR_COOKIE,
 	HWSIM_ATTR_CHANNELS,
 	HWSIM_ATTR_RADIO_ID,
 	HWSIM_ATTR_REG_HINT_ALPHA2,
 	HWSIM_ATTR_REG_CUSTOM_REG,
 	HWSIM_ATTR_REG_STRICT_REG,
 	HWSIM_ATTR_SUPPORT_P2P_DEVICE,
 	HWSIM_ATTR_USE_CHANCTX,
 	HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE,
 	HWSIM_ATTR_RADIO_NAME,
 	HWSIM_ATTR_NO_VIF,
 	HWSIM_ATTR_FREQ,
 	HWSIM_ATTR_PAD,
 	HWSIM_ATTR_TX_INFO_FLAGS,
 	HWSIM_ATTR_PERM_ADDR,
 	HWSIM_ATTR_IFTYPE_SUPPORT,
 	HWSIM_ATTR_CIPHER_SUPPORT,
 	__HWSIM_ATTR_MAX,
 };
 #define HWSIM_ATTR_MAX (__HWSIM_ATTR_MAX - 1)

 /**
  * struct hwsim_tx_rate - rate selection/status
  *
  * @idx: rate index to attempt to send with
  * @count: number of tries in this rate before going to the next rate
  *
  * A value of -1 for @idx indicates an invalid rate and, if used
  * in an array of retry rates, that no more rates should be tried.
  *
  * When used for transmit status reporting, the driver should
  * always report the rate and number of retries used.
  *
  */
 struct hwsim_tx_rate {
 	s8 idx;
 	u8 count;
 } __packed;

 /**
  * enum hwsim_tx_rate_flags - per-rate flags set by the rate control algorithm.
  *	Inspired by structure mac80211_rate_control_flags. New flags may be
  *	appended, but old flags not deleted, to keep compatibility for
  *	userspace.
  *
  * These flags are set by the Rate control algorithm for each rate during tx,
  * in the @flags member of struct ieee80211_tx_rate.
  *
  * @MAC80211_HWSIM_TX_RC_USE_RTS_CTS: Use RTS/CTS exchange for this rate.
  * @MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT: CTS-to-self protection is required.
  *	This is set if the current BSS requires ERP protection.
  * @MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE: Use short preamble.
  * @MAC80211_HWSIM_TX_RC_MCS: HT rate.
  * @MAC80211_HWSIM_TX_RC_VHT_MCS: VHT MCS rate, in this case the idx field is
  *	split into a higher 4 bits (Nss) and lower 4 bits (MCS number)
  * @MAC80211_HWSIM_TX_RC_GREEN_FIELD: Indicates whether this rate should be used
  *	in Greenfield mode.
  * @MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH: Indicates if the Channel Width should be
  *	40 MHz.
  * @MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH: Indicates 80 MHz transmission
  * @MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH: Indicates 160 MHz transmission
  *	(80+80 isn't supported yet)
  * @MAC80211_HWSIM_TX_RC_DUP_DATA: The frame should be transmitted on both of
  *	the adjacent 20 MHz channels, if the current channel type is
  *	NL80211_CHAN_HT40MINUS or NL80211_CHAN_HT40PLUS.
  * @MAC80211_HWSIM_TX_RC_SHORT_GI: Short Guard interval should be used for this
  *	rate.
  */
 enum hwsim_tx_rate_flags {
 	MAC80211_HWSIM_TX_RC_USE_RTS_CTS		= BIT(0),
 	MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT		= BIT(1),
 	MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE	= BIT(2),

 	/* rate index is an HT/VHT MCS instead of an index */
 	MAC80211_HWSIM_TX_RC_MCS			= BIT(3),
 	MAC80211_HWSIM_TX_RC_GREEN_FIELD		= BIT(4),
 	MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH		= BIT(5),
 	MAC80211_HWSIM_TX_RC_DUP_DATA		= BIT(6),
 	MAC80211_HWSIM_TX_RC_SHORT_GI		= BIT(7),
 	MAC80211_HWSIM_TX_RC_VHT_MCS			= BIT(8),
 	MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH		= BIT(9),
 	MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH		= BIT(10),
 };

 /**
  * struct hwsim_tx_rate - rate selection/status
  *
  * @idx: rate index to attempt to send with
  * @count: number of tries in this rate before going to the next rate
  *
  * A value of -1 for @idx indicates an invalid rate and, if used
  * in an array of retry rates, that no more rates should be tried.
  *
  * When used for transmit status reporting, the driver should
  * always report the rate and number of retries used.
  *
  */
 struct hwsim_tx_rate_flag {
 	s8 idx;
 	u16 flags;
 } __packed;

 /**
  * DOC: Frame transmission support over virtio
  *
  * Frame transmission is also supported over virtio to allow communication
  * with external entities.
  */

 /**
  * enum hwsim_vqs - queues for virtio frame transmission
  *
  * @HWSIM_VQ_TX: send frames to external entity
  * @HWSIM_VQ_RX: receive frames and transmission info reports
  * @HWSIM_NUM_VQS: enum limit
  */
 enum {
 	HWSIM_VQ_TX,
 	HWSIM_VQ_RX,
 	HWSIM_NUM_VQS,
 };
 #endif /* __MAC80211_HWSIM_H */
	/* SPDX-License-Identifier: GPL-2.0-only */
	/*
	* mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
	* Copyright (c) 2008, Jouni Malinen <[email protected]>
	* Copyright (c) 2011, Javier Lopez <[email protected]>
	* Copyright (C) 2020 Intel Corporation
	*/

	#ifndef __MAC80211_HWSIM_H
	#define __MAC80211_HWSIM_H

	/**
	* enum hwsim_tx_control_flags - flags to describe transmission info/status
	*
	* These flags are used to give the wmediumd extra information in order to
	* modify its behavior for each frame
	*
	* @HWSIM_TX_CTL_REQ_TX_STATUS: require TX status callback for this frame.
	* @HWSIM_TX_CTL_NO_ACK: tell the wmediumd not to wait for an ack
	* @HWSIM_TX_STAT_ACK: Frame was acknowledged
	*
	*/
	enum hwsim_tx_control_flags {
	HWSIM_TX_CTL_REQ_TX_STATUS = BIT(0),
	HWSIM_TX_CTL_NO_ACK = BIT(1),
	HWSIM_TX_STAT_ACK = BIT(2),
	};

	/**
	* DOC: Frame transmission/registration support
	*
	* Frame transmission and registration support exists to allow userspace
	* entities such as wmediumd to receive and process all broadcasted
	* frames from a mac80211_hwsim radio device.
	*
	* This allow user space applications to decide if the frame should be
	* dropped or not and implement a wireless medium simulator at user space.
	*
	* Registration is done by sending a register message to the driver and
	* will be automatically unregistered if the user application doesn't
	* responds to sent frames.
	* Once registered the user application has to take responsibility of
	* broadcasting the frames to all listening mac80211_hwsim radio
	* interfaces.
	*
	* For more technical details, see the corresponding command descriptions
	* below.
	*/

	/**
	* enum hwsim_commands - supported hwsim commands
	*
	* @HWSIM_CMD_UNSPEC: unspecified command to catch errors
	*
	* @HWSIM_CMD_REGISTER: request to register and received all broadcasted
	* frames by any mac80211_hwsim radio device.
	* @HWSIM_CMD_FRAME: send/receive a broadcasted frame from/to kernel/user
	* space, uses:
	* %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_ADDR_RECEIVER,
	* %HWSIM_ATTR_FRAME, %HWSIM_ATTR_FLAGS, %HWSIM_ATTR_RX_RATE,
	* %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE, %HWSIM_ATTR_FREQ (optional)
	* @HWSIM_CMD_TX_INFO_FRAME: Transmission info report from user space to
	* kernel, uses:
	* %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_FLAGS,
	* %HWSIM_ATTR_TX_INFO, %WSIM_ATTR_TX_INFO_FLAGS,
	* %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE
	* @HWSIM_CMD_NEW_RADIO: create a new radio with the given parameters,
	* returns the radio ID (>= 0) or negative on errors, if successful
	* then multicast the result, uses optional parameter:
	* %HWSIM_ATTR_REG_STRICT_REG, %HWSIM_ATTR_SUPPORT_P2P_DEVICE,
	* %HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE, %HWSIM_ATTR_CHANNELS,
	* %HWSIM_ATTR_NO_VIF, %HWSIM_ATTR_RADIO_NAME, %HWSIM_ATTR_USE_CHANCTX,
	* %HWSIM_ATTR_REG_HINT_ALPHA2, %HWSIM_ATTR_REG_CUSTOM_REG,
	* %HWSIM_ATTR_PERM_ADDR
	* @HWSIM_CMD_DEL_RADIO: destroy a radio, reply is multicasted
	* @HWSIM_CMD_GET_RADIO: fetch information about existing radios, uses:
	* %HWSIM_ATTR_RADIO_ID
	* @HWSIM_CMD_ADD_MAC_ADDR: add a receive MAC address (given in the
	* %HWSIM_ATTR_ADDR_RECEIVER attribute) to a device identified by
	* %HWSIM_ATTR_ADDR_TRANSMITTER. This lets wmediumd forward frames
	* to this receiver address for a given station.
	* @HWSIM_CMD_DEL_MAC_ADDR: remove the MAC address again, the attributes
	* are the same as to @HWSIM_CMD_ADD_MAC_ADDR.
	* @__HWSIM_CMD_MAX: enum limit
	*/
	enum {
	HWSIM_CMD_UNSPEC,
	HWSIM_CMD_REGISTER,
	HWSIM_CMD_FRAME,
	HWSIM_CMD_TX_INFO_FRAME,
	HWSIM_CMD_NEW_RADIO,
	HWSIM_CMD_DEL_RADIO,
	HWSIM_CMD_GET_RADIO,
	HWSIM_CMD_ADD_MAC_ADDR,
	HWSIM_CMD_DEL_MAC_ADDR,
	__HWSIM_CMD_MAX,
	};
	#define HWSIM_CMD_MAX (_HWSIM_CMD_MAX - 1)

	#define HWSIM_CMD_CREATE_RADIO HWSIM_CMD_NEW_RADIO
	#define HWSIM_CMD_DESTROY_RADIO HWSIM_CMD_DEL_RADIO

	/**
	* enum hwsim_attrs - hwsim netlink attributes
	*
	* @HWSIM_ATTR_UNSPEC: unspecified attribute to catch errors
	*
	* @HWSIM_ATTR_ADDR_RECEIVER: MAC address of the radio device that
	* the frame is broadcasted to
	* @HWSIM_ATTR_ADDR_TRANSMITTER: MAC address of the radio device that
	* the frame was broadcasted from
	* @HWSIM_ATTR_FRAME: Data array
	* @HWSIM_ATTR_FLAGS: mac80211 transmission flags, used to process
	properly the frame at user space
	* @HWSIM_ATTR_RX_RATE: estimated rx rate index for this frame at user
	space
	* @HWSIM_ATTR_SIGNAL: estimated RX signal for this frame at user
	space
	* @HWSIM_ATTR_TX_INFO: ieee80211_tx_rate array
	* @HWSIM_ATTR_COOKIE: sk_buff cookie to identify the frame
	* @HWSIM_ATTR_CHANNELS: u32 attribute used with the %HWSIM_CMD_CREATE_RADIO
	* command giving the number of channels supported by the new radio
	* @HWSIM_ATTR_RADIO_ID: u32 attribute used with %HWSIM_CMD_DESTROY_RADIO
	* only to destroy a radio
	* @HWSIM_ATTR_REG_HINT_ALPHA2: alpha2 for regulatoro driver hint
	* (nla string, length 2)
	* @HWSIM_ATTR_REG_CUSTOM_REG: custom regulatory domain index (u32 attribute)
	* @HWSIM_ATTR_REG_STRICT_REG: request REGULATORY_STRICT_REG (flag attribute)
	* @HWSIM_ATTR_SUPPORT_P2P_DEVICE: support P2P Device virtual interface (flag)
	* @HWSIM_ATTR_USE_CHANCTX: used with the %HWSIM_CMD_CREATE_RADIO
	* command to force use of channel contexts even when only a
	* single channel is supported
	* @HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE: used with the %HWSIM_CMD_CREATE_RADIO
	* command to force radio removal when process that created the radio dies
	* @HWSIM_ATTR_RADIO_NAME: Name of radio, e.g. phy666
	* @HWSIM_ATTR_NO_VIF: Do not create vif (wlanX) when creating radio.
	* @HWSIM_ATTR_FREQ: Frequency at which packet is transmitted or received.
	* @HWSIM_ATTR_TX_INFO_FLAGS: additional flags for corresponding
	* rates of %HWSIM_ATTR_TX_INFO
	* @HWSIM_ATTR_PERM_ADDR: permanent mac address of new radio
	* @HWSIM_ATTR_IFTYPE_SUPPORT: u32 attribute of supported interface types bits
	* @HWSIM_ATTR_CIPHER_SUPPORT: u32 array of supported cipher types
	* @__HWSIM_ATTR_MAX: enum limit
	*/


	enum {
	HWSIM_ATTR_UNSPEC,
	HWSIM_ATTR_ADDR_RECEIVER,
	HWSIM_ATTR_ADDR_TRANSMITTER,
	HWSIM_ATTR_FRAME,
	HWSIM_ATTR_FLAGS,
	HWSIM_ATTR_RX_RATE,
	HWSIM_ATTR_SIGNAL,
	HWSIM_ATTR_TX_INFO,
	HWSIM_ATTR_COOKIE,
	HWSIM_ATTR_CHANNELS,
	HWSIM_ATTR_RADIO_ID,
	HWSIM_ATTR_REG_HINT_ALPHA2,
	HWSIM_ATTR_REG_CUSTOM_REG,
	HWSIM_ATTR_REG_STRICT_REG,
	HWSIM_ATTR_SUPPORT_P2P_DEVICE,
	HWSIM_ATTR_USE_CHANCTX,
	HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE,
	HWSIM_ATTR_RADIO_NAME,
	HWSIM_ATTR_NO_VIF,
	HWSIM_ATTR_FREQ,
	HWSIM_ATTR_PAD,
	HWSIM_ATTR_TX_INFO_FLAGS,
	HWSIM_ATTR_PERM_ADDR,
	HWSIM_ATTR_IFTYPE_SUPPORT,
	HWSIM_ATTR_CIPHER_SUPPORT,
	__HWSIM_ATTR_MAX,
	};
	#define HWSIM_ATTR_MAX (__HWSIM_ATTR_MAX - 1)

	/**
	* struct hwsim_tx_rate - rate selection/status
	*
	* @idx: rate index to attempt to send with
	* @count: number of tries in this rate before going to the next rate
	*
	* A value of -1 for @idx indicates an invalid rate and, if used
	* in an array of retry rates, that no more rates should be tried.
	*
	* When used for transmit status reporting, the driver should
	* always report the rate and number of retries used.
	*
	*/
	struct hwsim_tx_rate {
	s8 idx;
	u8 count;
	} __packed;

	/**
	* enum hwsim_tx_rate_flags - per-rate flags set by the rate control algorithm.
	* Inspired by structure mac80211_rate_control_flags. New flags may be
	* appended, but old flags not deleted, to keep compatibility for
	* userspace.
	*
	* These flags are set by the Rate control algorithm for each rate during tx,
	* in the @flags member of struct ieee80211_tx_rate.
	*
	* @MAC80211_HWSIM_TX_RC_USE_RTS_CTS: Use RTS/CTS exchange for this rate.
	* @MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT: CTS-to-self protection is required.
	* This is set if the current BSS requires ERP protection.
	* @MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE: Use short preamble.
	* @MAC80211_HWSIM_TX_RC_MCS: HT rate.
	* @MAC80211_HWSIM_TX_RC_VHT_MCS: VHT MCS rate, in this case the idx field is
	* split into a higher 4 bits (Nss) and lower 4 bits (MCS number)
	* @MAC80211_HWSIM_TX_RC_GREEN_FIELD: Indicates whether this rate should be used
	* in Greenfield mode.
	* @MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH: Indicates if the Channel Width should be
	* 40 MHz.
	* @MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH: Indicates 80 MHz transmission
	* @MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH: Indicates 160 MHz transmission
	* (80+80 isn't supported yet)
	* @MAC80211_HWSIM_TX_RC_DUP_DATA: The frame should be transmitted on both of
	* the adjacent 20 MHz channels, if the current channel type is
	* NL80211_CHAN_HT40MINUS or NL80211_CHAN_HT40PLUS.
	* @MAC80211_HWSIM_TX_RC_SHORT_GI: Short Guard interval should be used for this
	* rate.
	*/
	enum hwsim_tx_rate_flags {
	MAC80211_HWSIM_TX_RC_USE_RTS_CTS = BIT(0),
	MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT = BIT(1),
	MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE = BIT(2),

	/* rate index is an HT/VHT MCS instead of an index */
	MAC80211_HWSIM_TX_RC_MCS = BIT(3),
	MAC80211_HWSIM_TX_RC_GREEN_FIELD = BIT(4),
	MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH = BIT(5),
	MAC80211_HWSIM_TX_RC_DUP_DATA = BIT(6),
	MAC80211_HWSIM_TX_RC_SHORT_GI = BIT(7),
	MAC80211_HWSIM_TX_RC_VHT_MCS = BIT(8),
	MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH = BIT(9),
	MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH = BIT(10),
	};

	/**
	* struct hwsim_tx_rate - rate selection/status
	*
	* @idx: rate index to attempt to send with
	* @count: number of tries in this rate before going to the next rate
	*
	* A value of -1 for @idx indicates an invalid rate and, if used
	* in an array of retry rates, that no more rates should be tried.
	*
	* When used for transmit status reporting, the driver should
	* always report the rate and number of retries used.
	*
	*/
	struct hwsim_tx_rate_flag {
	s8 idx;
	u16 flags;
	} __packed;

	/**
	* DOC: Frame transmission support over virtio
	*
	* Frame transmission is also supported over virtio to allow communication
	* with external entities.
	*/

	/**
	* enum hwsim_vqs - queues for virtio frame transmission
	*
	* @HWSIM_VQ_TX: send frames to external entity
	* @HWSIM_VQ_RX: receive frames and transmission info reports
	* @HWSIM_NUM_VQS: enum limit
	*/
	enum {
	HWSIM_VQ_TX,
	HWSIM_VQ_RX,
	HWSIM_NUM_VQS,
	};
	#endif /* __MAC80211_HWSIM_H */