xref: /openbmc/linux/drivers/net/wireless/intel/iwlwifi/fw/api/datapath.h (revision 5c75a208)

/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
 * Copyright (C) 2012-2014, 2018-2020 Intel Corporation
 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
 * Copyright (C) 2016-2017 Intel Deutschland GmbH
 */
#ifndef __iwl_fw_api_datapath_h__
#define __iwl_fw_api_datapath_h__

/**
 * enum iwl_data_path_subcmd_ids - data path group commands
 */
enum iwl_data_path_subcmd_ids {
	/**
	 * @DQA_ENABLE_CMD: &struct iwl_dqa_enable_cmd
	 */
	DQA_ENABLE_CMD = 0x0,

	/**
	 * @UPDATE_MU_GROUPS_CMD: &struct iwl_mu_group_mgmt_cmd
	 */
	UPDATE_MU_GROUPS_CMD = 0x1,

	/**
	 * @TRIGGER_RX_QUEUES_NOTIF_CMD: &struct iwl_rxq_sync_cmd
	 */
	TRIGGER_RX_QUEUES_NOTIF_CMD = 0x2,

	/**
	 * @STA_HE_CTXT_CMD: &struct iwl_he_sta_context_cmd
	 */
	STA_HE_CTXT_CMD = 0x7,

	/**
	 * @RLC_CONFIG_CMD: &struct iwl_rlc_config_cmd
	 */
	RLC_CONFIG_CMD = 0x8,

	/**
	 * @RFH_QUEUE_CONFIG_CMD: &struct iwl_rfh_queue_config
	 */
	RFH_QUEUE_CONFIG_CMD = 0xD,

	/**
	 * @TLC_MNG_CONFIG_CMD: &struct iwl_tlc_config_cmd_v4
	 */
	TLC_MNG_CONFIG_CMD = 0xF,

	/**
	 * @HE_AIR_SNIFFER_CONFIG_CMD: &struct iwl_he_monitor_cmd
	 */
	HE_AIR_SNIFFER_CONFIG_CMD = 0x13,

	/**
	 * @CHEST_COLLECTOR_FILTER_CONFIG_CMD: Configure the CSI
	 *	matrix collection, uses &struct iwl_channel_estimation_cfg
	 */
	CHEST_COLLECTOR_FILTER_CONFIG_CMD = 0x14,

	/**
	 * @RX_BAID_ALLOCATION_CONFIG_CMD: Allocate/deallocate a BAID for an RX
	 *	blockack session, uses &struct iwl_rx_baid_cfg_cmd for the
	 *	command, and &struct iwl_rx_baid_cfg_resp as a response.
	 */
	RX_BAID_ALLOCATION_CONFIG_CMD = 0x16,

	/**
	 * @SCD_QUEUE_CONFIG_CMD: new scheduler queue allocation/config/removal
	 *	command, uses &struct iwl_scd_queue_cfg_cmd and the response
	 *	is (same as before) &struct iwl_tx_queue_cfg_rsp.
	 */
	SCD_QUEUE_CONFIG_CMD = 0x17,

	/**
	 * @SEC_KEY_CMD: security key command, uses &struct iwl_sec_key_cmd
	 */
	SEC_KEY_CMD = 0x18,

	/**
	 * @MONITOR_NOTIF: Datapath monitoring notification, using
	 *	&struct iwl_datapath_monitor_notif
	 */
	MONITOR_NOTIF = 0xF4,

	/**
	 * @RX_NO_DATA_NOTIF: &struct iwl_rx_no_data
	 */
	RX_NO_DATA_NOTIF = 0xF5,

	/**
	 * @THERMAL_DUAL_CHAIN_DISABLE_REQ: firmware request for SMPS mode,
	 *	&struct iwl_thermal_dual_chain_request
	 */
	THERMAL_DUAL_CHAIN_REQUEST = 0xF6,

	/**
	 * @TLC_MNG_UPDATE_NOTIF: &struct iwl_tlc_update_notif
	 */
	TLC_MNG_UPDATE_NOTIF = 0xF7,

	/**
	 * @STA_PM_NOTIF: &struct iwl_mvm_pm_state_notification
	 */
	STA_PM_NOTIF = 0xFD,

	/**
	 * @MU_GROUP_MGMT_NOTIF: &struct iwl_mu_group_mgmt_notif
	 */
	MU_GROUP_MGMT_NOTIF = 0xFE,

	/**
	 * @RX_QUEUES_NOTIFICATION: &struct iwl_rxq_sync_notification
	 */
	RX_QUEUES_NOTIFICATION = 0xFF,
};

/**
 * struct iwl_mu_group_mgmt_cmd - VHT MU-MIMO group configuration
 *
 * @reserved: reserved
 * @membership_status: a bitmap of MU groups
 * @user_position:the position of station in a group. If the station is in the
 *	group then bits (group * 2) is the position -1
 */
struct iwl_mu_group_mgmt_cmd {
	__le32 reserved;
	__le32 membership_status[2];
	__le32 user_position[4];
} __packed; /* MU_GROUP_ID_MNG_TABLE_API_S_VER_1 */

/**
 * struct iwl_mu_group_mgmt_notif - VHT MU-MIMO group id notification
 *
 * @membership_status: a bitmap of MU groups
 * @user_position: the position of station in a group. If the station is in the
 *	group then bits (group * 2) is the position -1
 */
struct iwl_mu_group_mgmt_notif {
	__le32 membership_status[2];
	__le32 user_position[4];
} __packed; /* MU_GROUP_MNG_NTFY_API_S_VER_1 */

enum iwl_channel_estimation_flags {
	IWL_CHANNEL_ESTIMATION_ENABLE	= BIT(0),
	IWL_CHANNEL_ESTIMATION_TIMER	= BIT(1),
	IWL_CHANNEL_ESTIMATION_COUNTER	= BIT(2),
};

/**
 * struct iwl_channel_estimation_cfg - channel estimation reporting config
 */
struct iwl_channel_estimation_cfg {
	/**
	 * @flags: flags, see &enum iwl_channel_estimation_flags
	 */
	__le32 flags;
	/**
	 * @timer: if enabled via flags, automatically disable after this many
	 *	microseconds
	 */
	__le32 timer;
	/**
	 * @count: if enabled via flags, automatically disable after this many
	 *	frames with channel estimation matrix were captured
	 */
	__le32 count;
	/**
	 * @rate_n_flags_mask: only try to record the channel estimation matrix
	 *	if the rate_n_flags value for the received frame (let's call
	 *	that rx_rnf) matches the mask/value given here like this:
	 *	(rx_rnf & rate_n_flags_mask) == rate_n_flags_val.
	 */
	__le32 rate_n_flags_mask;
	/**
	 * @rate_n_flags_val: see @rate_n_flags_mask
	 */
	__le32 rate_n_flags_val;
	/**
	 * @reserved: reserved (for alignment)
	 */
	__le32 reserved;
	/**
	 * @frame_types: bitmap of frame types to capture, the received frame's
	 *	subtype|type takes 6 bits in the frame and the corresponding bit
	 *	in this field must be set to 1 to capture channel estimation for
	 *	that frame type. Set to all-ones to enable capturing for all
	 *	frame types.
	 */
	__le64 frame_types;
} __packed; /* CHEST_COLLECTOR_FILTER_CMD_API_S_VER_1 */

enum iwl_datapath_monitor_notif_type {
	IWL_DP_MON_NOTIF_TYPE_EXT_CCA,
};

struct iwl_datapath_monitor_notif {
	__le32 type;
	u8 mac_id;
	u8 reserved[3];
} __packed; /* MONITOR_NTF_API_S_VER_1 */

/**
 * enum iwl_thermal_dual_chain_req_events - firmware SMPS request event
 * @THERMAL_DUAL_CHAIN_REQ_ENABLE: (re-)enable dual-chain operation
 *	(subject to other constraints)
 * @THERMAL_DUAL_CHAIN_REQ_DISABLE: disable dual-chain operation
 *	(static SMPS)
 */
enum iwl_thermal_dual_chain_req_events {
	THERMAL_DUAL_CHAIN_REQ_ENABLE,
	THERMAL_DUAL_CHAIN_REQ_DISABLE,
}; /* THERMAL_DUAL_CHAIN_DISABLE_STATE_API_E_VER_1 */

/**
 * struct iwl_thermal_dual_chain_request - SMPS request
 * @event: the type of request, see &enum iwl_thermal_dual_chain_req_events
 */
struct iwl_thermal_dual_chain_request {
	__le32 event;
} __packed; /* THERMAL_DUAL_CHAIN_DISABLE_REQ_NTFY_API_S_VER_1 */

enum iwl_rlc_chain_info {
	IWL_RLC_CHAIN_INFO_DRIVER_FORCE		= BIT(0),
	IWL_RLC_CHAIN_INFO_VALID		= 0x000e,
	IWL_RLC_CHAIN_INFO_FORCE		= 0x0070,
	IWL_RLC_CHAIN_INFO_FORCE_MIMO		= 0x0380,
	IWL_RLC_CHAIN_INFO_COUNT		= 0x0c00,
	IWL_RLC_CHAIN_INFO_MIMO_COUNT		= 0x3000,
};

/**
 * struct iwl_rlc_properties - RLC properties
 * @rx_chain_info: RX chain info, &enum iwl_rlc_chain_info
 * @reserved: reserved
 */
struct iwl_rlc_properties {
	__le32 rx_chain_info;
	__le32 reserved;
} __packed; /* RLC_PROPERTIES_S_VER_1 */

enum iwl_sad_mode {
	IWL_SAD_MODE_ENABLED		= BIT(0),
	IWL_SAD_MODE_DEFAULT_ANT_MSK	= 0x6,
	IWL_SAD_MODE_DEFAULT_ANT_FW	= 0x0,
	IWL_SAD_MODE_DEFAULT_ANT_A	= 0x2,
	IWL_SAD_MODE_DEFAULT_ANT_B	= 0x4,
};

/**
 * struct iwl_sad_properties - SAD properties
 * @chain_a_sad_mode: chain A SAD mode, &enum iwl_sad_mode
 * @chain_b_sad_mode: chain B SAD mode, &enum iwl_sad_mode
 * @mac_id: MAC index
 * @reserved: reserved
 */
struct iwl_sad_properties {
	__le32 chain_a_sad_mode;
	__le32 chain_b_sad_mode;
	__le32 mac_id;
	__le32 reserved;
} __packed;

/**
 * struct iwl_rlc_config_cmd - RLC configuration
 * @phy_id: PHY index
 * @rlc: RLC properties, &struct iwl_rlc_properties
 * @sad: SAD (single antenna diversity) options, &struct iwl_sad_properties
 * @flags: flags, &enum iwl_rlc_flags
 * @reserved: reserved
 */
struct iwl_rlc_config_cmd {
	__le32 phy_id;
	struct iwl_rlc_properties rlc;
	struct iwl_sad_properties sad;
	u8 flags;
	u8 reserved[3];
} __packed; /* RLC_CONFIG_CMD_API_S_VER_2 */

#define IWL_MAX_BAID_OLD	16 /* MAX_IMMEDIATE_BA_API_D_VER_2 */
#define IWL_MAX_BAID		32 /* MAX_IMMEDIATE_BA_API_D_VER_3 */

/**
 * enum iwl_rx_baid_action - BAID allocation/config action
 * @IWL_RX_BAID_ACTION_ADD: add a new BAID session
 * @IWL_RX_BAID_ACTION_MODIFY: modify the BAID session
 * @IWL_RX_BAID_ACTION_REMOVE: remove the BAID session
 */
enum iwl_rx_baid_action {
	IWL_RX_BAID_ACTION_ADD,
	IWL_RX_BAID_ACTION_MODIFY,
	IWL_RX_BAID_ACTION_REMOVE,
}; /*  RX_BAID_ALLOCATION_ACTION_E_VER_1 */

/**
 * struct iwl_rx_baid_cfg_cmd_alloc - BAID allocation data
 * @sta_id_mask: station ID mask
 * @tid: the TID for this session
 * @reserved: reserved
 * @ssn: the starting sequence number
 * @win_size: RX BA session window size
 */
struct iwl_rx_baid_cfg_cmd_alloc {
	__le32 sta_id_mask;
	u8 tid;
	u8 reserved[3];
	__le16 ssn;
	__le16 win_size;
} __packed; /* RX_BAID_ALLOCATION_ADD_CMD_API_S_VER_1 */

/**
 * struct iwl_rx_baid_cfg_cmd_modify - BAID modification data
 * @old_sta_id_mask: old station ID mask
 * @new_sta_id_mask: new station ID mask
 * @tid: TID of the BAID
 */
struct iwl_rx_baid_cfg_cmd_modify {
	__le32 old_sta_id_mask;
	__le32 new_sta_id_mask;
	__le32 tid;
} __packed; /* RX_BAID_ALLOCATION_MODIFY_CMD_API_S_VER_2 */

/**
 * struct iwl_rx_baid_cfg_cmd_remove_v1 - BAID removal data
 * @baid: the BAID to remove
 */
struct iwl_rx_baid_cfg_cmd_remove_v1 {
	__le32 baid;
} __packed; /* RX_BAID_ALLOCATION_REMOVE_CMD_API_S_VER_1 */

/**
 * struct iwl_rx_baid_cfg_cmd_remove - BAID removal data
 * @sta_id_mask: the station mask of the BAID to remove
 * @tid: the TID of the BAID to remove
 */
struct iwl_rx_baid_cfg_cmd_remove {
	__le32 sta_id_mask;
	__le32 tid;
} __packed; /* RX_BAID_ALLOCATION_REMOVE_CMD_API_S_VER_2 */

/**
 * struct iwl_rx_baid_cfg_cmd - BAID allocation/config command
 * @action: the action, from &enum iwl_rx_baid_action
 */
struct iwl_rx_baid_cfg_cmd {
	__le32 action;
	union {
		struct iwl_rx_baid_cfg_cmd_alloc alloc;
		struct iwl_rx_baid_cfg_cmd_modify modify;
		struct iwl_rx_baid_cfg_cmd_remove_v1 remove_v1;
		struct iwl_rx_baid_cfg_cmd_remove remove;
	}; /* RX_BAID_ALLOCATION_OPERATION_API_U_VER_2 */
} __packed; /* RX_BAID_ALLOCATION_CONFIG_CMD_API_S_VER_2 */

/**
 * struct iwl_rx_baid_cfg_resp - BAID allocation response
 * @baid: the allocated BAID
 */
struct iwl_rx_baid_cfg_resp {
	__le32 baid;
}; /* RX_BAID_ALLOCATION_RESPONSE_API_S_VER_1 */

/**
 * enum iwl_scd_queue_cfg_operation - scheduler queue operation
 * @IWL_SCD_QUEUE_ADD: allocate a new queue
 * @IWL_SCD_QUEUE_REMOVE: remove a queue
 * @IWL_SCD_QUEUE_MODIFY: modify a queue
 */
enum iwl_scd_queue_cfg_operation {
	IWL_SCD_QUEUE_ADD = 0,
	IWL_SCD_QUEUE_REMOVE = 1,
	IWL_SCD_QUEUE_MODIFY = 2,
};

/**
 * struct iwl_scd_queue_cfg_cmd - scheduler queue allocation command
 * @operation: the operation, see &enum iwl_scd_queue_cfg_operation
 * @u.add.sta_mask: station mask
 * @u.add.tid: TID
 * @u.add.reserved: reserved
 * @u.add.flags: flags from &enum iwl_tx_queue_cfg_actions, except
 *	%TX_QUEUE_CFG_ENABLE_QUEUE is not valid
 * @u.add.cb_size: size code
 * @u.add.bc_dram_addr: byte-count table IOVA
 * @u.add.tfdq_dram_addr: TFD queue IOVA
 * @u.remove.queue: queue ID for removal
 * @u.modify.sta_mask: new station mask for modify
 * @u.modify.queue: queue ID to modify
 */
struct iwl_scd_queue_cfg_cmd {
	__le32 operation;
	union {
		struct {
			__le32 sta_mask;
			u8 tid;
			u8 reserved[3];
			__le32 flags;
			__le32 cb_size;
			__le64 bc_dram_addr;
			__le64 tfdq_dram_addr;
		} __packed add; /* TX_QUEUE_CFG_CMD_ADD_API_S_VER_1 */
		struct {
			__le32 queue;
		} __packed remove; /* TX_QUEUE_CFG_CMD_REMOVE_API_S_VER_1 */
		struct {
			__le32 sta_mask;
			__le32 queue;
		} __packed modify; /* TX_QUEUE_CFG_CMD_MODIFY_API_S_VER_1 */
	} __packed u; /* TX_QUEUE_CFG_CMD_OPERATION_API_U_VER_1 */
} __packed; /* TX_QUEUE_CFG_CMD_API_S_VER_3 */

/**
 * enum iwl_sec_key_flags - security key command key flags
 * @IWL_SEC_KEY_FLAG_CIPHER_MASK: cipher mask
 * @IWL_SEC_KEY_FLAG_CIPHER_WEP: WEP cipher
 * @IWL_SEC_KEY_FLAG_CIPHER_CCMP: CCMP/CMAC cipher
 * @IWL_SEC_KEY_FLAG_CIPHER_TKIP: TKIP cipher
 * @IWL_SEC_KEY_FLAG_CIPHER_GCMP: GCMP/GMAC cipher
 * @IWL_SEC_KEY_FLAG_NO_TX: don't install for TX
 * @IWL_SEC_KEY_FLAG_KEY_SIZE: large key size (WEP-104, GCMP-256, GMAC-256)
 * @IWL_SEC_KEY_FLAG_MFP: MFP is in used for this key
 * @IWL_SEC_KEY_FLAG_MCAST_KEY: this is a multicast key
 * @IWL_SEC_KEY_FLAG_SPP_AMSDU: SPP A-MSDU should be used
 */
enum iwl_sec_key_flags {
	IWL_SEC_KEY_FLAG_CIPHER_MASK	= 0x07,
	IWL_SEC_KEY_FLAG_CIPHER_WEP	= 0x01,
	IWL_SEC_KEY_FLAG_CIPHER_CCMP	= 0x02,
	IWL_SEC_KEY_FLAG_CIPHER_TKIP	= 0x03,
	IWL_SEC_KEY_FLAG_CIPHER_GCMP	= 0x05,
	IWL_SEC_KEY_FLAG_NO_TX		= 0x08,
	IWL_SEC_KEY_FLAG_KEY_SIZE	= 0x10,
	IWL_SEC_KEY_FLAG_MFP		= 0x20,
	IWL_SEC_KEY_FLAG_MCAST_KEY	= 0x40,
	IWL_SEC_KEY_FLAG_SPP_AMSDU	= 0x80,
};

#define IWL_SEC_WEP_KEY_OFFSET	3

/**
 * struct iwl_sec_key_cmd - security key command
 * @action: action from &enum iwl_ctxt_action
 * @u.add.sta_mask: station mask for the new key
 * @u.add.key_id: key ID (0-7) for the new key
 * @u.add.key_flags: key flags per &enum iwl_sec_key_flags
 * @u.add.key: key material. WEP keys should start from &IWL_SEC_WEP_KEY_OFFSET.
 * @u.add.tkip_mic_rx_key: TKIP MIC RX key
 * @u.add.tkip_mic_tx_key: TKIP MIC TX key
 * @u.add.rx_seq: RX sequence counter value
 * @u.add.tx_seq: TX sequence counter value
 * @u.modify.old_sta_mask: old station mask
 * @u.modify.new_sta_mask: new station mask
 * @u.modify.key_id: key ID
 * @u.modify.key_flags: new key flags
 * @u.remove.sta_mask: station mask
 * @u.remove.key_id: key ID
 * @u.remove.key_flags: key flags
 */
struct iwl_sec_key_cmd {
	__le32 action;
	union {
		struct {
			__le32 sta_mask;
			__le32 key_id;
			__le32 key_flags;
			u8 key[32];
			u8 tkip_mic_rx_key[8];
			u8 tkip_mic_tx_key[8];
			__le64 rx_seq;
			__le64 tx_seq;
		} __packed add; /* SEC_KEY_ADD_CMD_API_S_VER_1 */
		struct {
			__le32 old_sta_mask;
			__le32 new_sta_mask;
			__le32 key_id;
			__le32 key_flags;
		} __packed modify; /* SEC_KEY_MODIFY_CMD_API_S_VER_1 */
		struct {
			__le32 sta_mask;
			__le32 key_id;
			__le32 key_flags;
		} __packed remove; /* SEC_KEY_REMOVE_CMD_API_S_VER_1 */
	} __packed u; /* SEC_KEY_OPERATION_API_U_VER_1 */
} __packed; /* SEC_KEY_CMD_API_S_VER_1 */

#endif /* __iwl_fw_api_datapath_h__ */