include/linux/ipa_wdi3.h - kernel/msm-4.9 - Gitiles

 /* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */

 #ifndef _IPA_WDI3_H_
 #define _IPA_WDI3_H_

 #include <linux/ipa.h>

 #define IPA_HW_WDI3_TCL_DATA_CMD_ER_DESC_SIZE 32
 #define IPA_HW_WDI3_IPA2FW_ER_DESC_SIZE 8

 #define IPA_HW_WDI3_MAX_ER_DESC_SIZE \
 	(((IPA_HW_WDI3_TCL_DATA_CMD_ER_DESC_SIZE) > \
 	(IPA_HW_WDI3_IPA2FW_ER_DESC_SIZE)) ?  \
 	(IPA_HW_WDI3_TCL_DATA_CMD_ER_DESC_SIZE) : \
 	(IPA_HW_WDI3_IPA2FW_ER_DESC_SIZE))

 #define IPA_WDI_MAX_SUPPORTED_SYS_PIPE 3

 enum ipa_wdi_version {
 	IPA_WDI_1,
 	IPA_WDI_2,
 	IPA_WDI_3
 };

 /**
  * struct ipa_wdi_init_in_params - wdi init input parameters
  *
  * @wdi_version: wdi version
  * @notify: uc ready callback
  * @priv: uc ready callback cookie
  */
 struct ipa_wdi_init_in_params {
 	enum ipa_wdi_version wdi_version;
 	ipa_uc_ready_cb notify;
 	void *priv;
 	ipa_wdi_meter_notifier_cb wdi_notify;
 };

 /**
  * struct ipa_wdi_init_out_params - wdi init output parameters
  *
  * @is_uC_ready: is uC ready. No API should be called until uC
     is ready.
  * @is_smmu_enable: is smmu enabled
  */
 struct ipa_wdi_init_out_params {
 	bool is_uC_ready;
 	bool is_smmu_enabled;
 };

 /**
  * struct ipa_wdi_hdr_info - Header to install on IPA HW
  *
  * @hdr: header to install on IPA HW
  * @hdr_len: length of header
  * @dst_mac_addr_offset: destination mac address offset
  * @hdr_type: layer two header type
  */
 struct ipa_wdi_hdr_info {
 	u8 *hdr;
 	u8 hdr_len;
 	u8 dst_mac_addr_offset;
 	enum ipa_hdr_l2_type hdr_type;
 };

 /**
  * struct ipa_wdi_reg_intf_in_params - parameters for uC offload
  *	interface registration
  *
  * @netdev_name: network interface name
  * @hdr_info: header information
  * @is_meta_data_valid: if meta data is valid
  * @meta_data: meta data if any
  * @meta_data_mask: meta data mask
  */
 struct ipa_wdi_reg_intf_in_params {
 	const char *netdev_name;
 	struct ipa_wdi_hdr_info hdr_info[IPA_IP_MAX];
 	enum ipa_client_type alt_dst_pipe;
 	u8 is_meta_data_valid;
 	u32 meta_data;
 	u32 meta_data_mask;
 };

 /**
  * struct  ipa_wdi_pipe_setup_info - WDI TX/Rx configuration
  * @ipa_ep_cfg: ipa endpoint configuration
  * @client: type of "client"
  * @transfer_ring_base_pa:  physical address of the base of the transfer ring
  * @transfer_ring_size:  size of the transfer ring
  * @transfer_ring_doorbell_pa:  physical address of the doorbell that
 	IPA uC will update the tailpointer of the transfer ring
  * @event_ring_base_pa:  physical address of the base of the event ring
  * @event_ring_size:  event ring size
  * @event_ring_doorbell_pa:  physical address of the doorbell that IPA uC
 	will update the headpointer of the event ring
  * @num_pkt_buffers:  Number of pkt buffers allocated. The size of the event
 	ring and the transfer ring has to be atleast ( num_pkt_buffers + 1)
  * @pkt_offset: packet offset (wdi header length)
  * @desc_format_template[IPA_HW_WDI3_MAX_ER_DESC_SIZE]:  Holds a cached
 	template of the desc format
  */
 struct ipa_wdi_pipe_setup_info {
 	struct ipa_ep_cfg ipa_ep_cfg;
 	enum ipa_client_type client;
 	phys_addr_t  transfer_ring_base_pa;
 	u32  transfer_ring_size;
 	phys_addr_t  transfer_ring_doorbell_pa;

 	phys_addr_t  event_ring_base_pa;
 	u32  event_ring_size;
 	phys_addr_t  event_ring_doorbell_pa;
 	u16  num_pkt_buffers;

 	u16 pkt_offset;

 	u32  desc_format_template[IPA_HW_WDI3_MAX_ER_DESC_SIZE];
 };

 /**
  * struct  ipa_wdi_pipe_setup_info_smmu - WDI TX/Rx configuration
  * @ipa_ep_cfg: ipa endpoint configuration
  * @client: type of "client"
  * @transfer_ring_base_pa:  physical address of the base of the transfer ring
  * @transfer_ring_size:  size of the transfer ring
  * @transfer_ring_doorbell_pa:  physical address of the doorbell that
 	IPA uC will update the tailpointer of the transfer ring
  * @event_ring_base_pa:  physical address of the base of the event ring
  * @event_ring_size:  event ring size
  * @event_ring_doorbell_pa:  physical address of the doorbell that IPA uC
 	will update the headpointer of the event ring
  * @num_pkt_buffers:  Number of pkt buffers allocated. The size of the event
 	ring and the transfer ring has to be atleast ( num_pkt_buffers + 1)
  * @pkt_offset: packet offset (wdi header length)
  * @desc_format_template[IPA_HW_WDI3_MAX_ER_DESC_SIZE]:  Holds a cached
 	template of the desc format
  */
 struct ipa_wdi_pipe_setup_info_smmu {
 	struct ipa_ep_cfg ipa_ep_cfg;
 	enum ipa_client_type client;
 	struct sg_table  transfer_ring_base;
 	u32  transfer_ring_size;
 	phys_addr_t  transfer_ring_doorbell_pa;

 	struct sg_table  event_ring_base;
 	u32  event_ring_size;
 	phys_addr_t  event_ring_doorbell_pa;
 	u16  num_pkt_buffers;

 	u16 pkt_offset;

 	u32  desc_format_template[IPA_HW_WDI3_MAX_ER_DESC_SIZE];
 };

 /**
  * struct  ipa_wdi_conn_in_params - information provided by
  *		uC offload client
  * @notify: client callback function
  * @priv: client cookie
  * @is_smmu_enabled: if smmu is enabled
  * @num_sys_pipe_needed: number of sys pipe needed
  * @sys_in: parameters to setup sys pipe in mcc mode
  * @tx: parameters to connect TX pipe(from IPA to WLAN)
  * @tx_smmu: smmu parameters to connect TX pipe(from IPA to WLAN)
  * @rx: parameters to connect RX pipe(from WLAN to IPA)
  * @rx_smmu: smmu parameters to connect RX pipe(from WLAN to IPA)
  */
 struct ipa_wdi_conn_in_params {
 	ipa_notify_cb notify;
 	void *priv;
 	bool is_smmu_enabled;
 	u8 num_sys_pipe_needed;
 	struct ipa_sys_connect_params sys_in[IPA_WDI_MAX_SUPPORTED_SYS_PIPE];
 	union {
 		struct ipa_wdi_pipe_setup_info tx;
 		struct ipa_wdi_pipe_setup_info_smmu tx_smmu;
 	} u_tx;
 	union {
 		struct ipa_wdi_pipe_setup_info rx;
 		struct ipa_wdi_pipe_setup_info_smmu rx_smmu;
 	} u_rx;
 };

 /**
  * struct  ipa_wdi_conn_out_params - information provided
  *				to WLAN driver
  * @tx_uc_db_pa: physical address of IPA uC doorbell for TX
  * @rx_uc_db_pa: physical address of IPA uC doorbell for RX
  */
 struct ipa_wdi_conn_out_params {
 	phys_addr_t tx_uc_db_pa;
 	phys_addr_t rx_uc_db_pa;
 };

 /**
  * struct  ipa_wdi_perf_profile - To set BandWidth profile
  *
  * @client: type of client
  * @max_supported_bw_mbps: maximum bandwidth needed (in Mbps)
  */
 struct ipa_wdi_perf_profile {
 	enum ipa_client_type client;
 	u32 max_supported_bw_mbps;
 };

 #if defined CONFIG_IPA || defined CONFIG_IPA3

 /**
  * ipa_wdi_init - Client should call this function to
  * init WDI IPA offload data path
  *
  * Note: Should not be called from atomic context and only
  * after checking IPA readiness using ipa_register_ipa_ready_cb()
  *
  * @Return 0 on success, negative on failure
  */
 int ipa_wdi_init(struct ipa_wdi_init_in_params *in,
 	struct ipa_wdi_init_out_params *out);

 /**
  * ipa_wdi_cleanup - Client should call this function to
  * clean up WDI IPA offload data path
  *
  * @Return 0 on success, negative on failure
  */
 int ipa_wdi_cleanup(void);

 /**
  * ipa_wdi_reg_intf - Client should call this function to
  * register interface
  *
  * Note: Should not be called from atomic context
  *
  * @Return 0 on success, negative on failure
  */
 int ipa_wdi_reg_intf(
 	struct ipa_wdi_reg_intf_in_params *in);

 /**
  * ipa_wdi_dereg_intf - Client Driver should call this
  * function to deregister before unload and after disconnect
  *
  * @Return 0 on success, negative on failure
  */
 int ipa_wdi_dereg_intf(const char *netdev_name);

 /**
  * ipa_wdi_conn_pipes - Client should call this
  * function to connect pipes
  *
  * @in:	[in] input parameters from client
  * @out: [out] output params to client
  *
  * Note: Should not be called from atomic context
  *
  * @Return 0 on success, negative on failure
  */
 int ipa_wdi_conn_pipes(struct ipa_wdi_conn_in_params *in,
 	struct ipa_wdi_conn_out_params *out);

 /**
  * ipa_wdi_disconn_pipes() - Client should call this
  *		function to disconnect pipes
  *
  * Note: Should not be called from atomic context
  *
  * Returns: 0 on success, negative on failure
  */
 int ipa_wdi_disconn_pipes(void);

 /**
  * ipa_wdi_enable_pipes() - Client should call this
  *		function to enable IPA offload data path
  *
  * Note: Should not be called from atomic context
  *
  * Returns: 0 on success, negative on failure
  */
 int ipa_wdi_enable_pipes(void);

 /**
  * ipa_wdi_disable_pipes() - Client should call this
  *		function to disable IPA offload data path
  *
  * Note: Should not be called from atomic context
  *
  * Returns: 0 on success, negative on failure
  */
 int ipa_wdi_disable_pipes(void);

 /**
  * ipa_wdi_set_perf_profile() - Client should call this function to
  *		set IPA clock bandwidth based on data rates
  *
  * @profile: [in] BandWidth profile to use
  *
  * Returns: 0 on success, negative on failure
  */
 int ipa_wdi_set_perf_profile(struct ipa_wdi_perf_profile *profile);

 /**
  * ipa_wdi_create_smmu_mapping() - Create smmu mapping
  *
  * @num_buffers: number of buffers
  *
  * @info: wdi buffer info
  */
 int ipa_wdi_create_smmu_mapping(u32 num_buffers,
 	struct ipa_wdi_buffer_info *info);

 /**
  * ipa_wdi_release_smmu_mapping() - Release smmu mapping
  *
  * @num_buffers: number of buffers
  *
  * @info: wdi buffer info
  */
 int ipa_wdi_release_smmu_mapping(u32 num_buffers,
 	struct ipa_wdi_buffer_info *info);

 /**
  * ipa_wdi_get_stats() - Query WDI statistics
  * @stats:	[inout] stats blob from client populated by driver
  *
  * Returns:	0 on success, negative on failure
  *
  * @note Cannot be called from atomic context
  *
  */
 int ipa_wdi_get_stats(struct IpaHwStatsWDIInfoData_t *stats);

 #else /* (CONFIG_IPA || CONFIG_IPA3) */

 static inline int ipa_wdi_init(struct ipa_wdi_init_in_params *in,
 	struct ipa_wdi_init_out_params *out)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_cleanup(void)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_reg_intf(
 	struct ipa_wdi_reg_intf_in_params *in)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_dereg_intf(const char *netdev_name)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_conn_pipes(struct ipa_wdi_conn_in_params *in,
 	struct ipa_wdi_conn_out_params *out)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_disconn_pipes(void)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_enable_pipes(void)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_disable_pipes(void)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_set_perf_profile(
 	struct ipa_wdi_perf_profile *profile)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_create_smmu_mapping(u32 num_buffers,
 	struct ipa_wdi_buffer_info *info)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_release_smmu_mapping(u32 num_buffers,
 	struct ipa_wdi_buffer_info *info)
 {
 	return -EPERM;
 }

 static inline int ipa_wdi_get_stats(struct IpaHwStatsWDIInfoData_t *stats)
 {
 	return -EPERM;
 }

 #endif /* CONFIG_IPA3 */

 #endif /* _IPA_WDI3_H_ */
	/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*/

	#ifndef _IPA_WDI3_H_
	#define _IPA_WDI3_H_

	#include <linux/ipa.h>

	#define IPA_HW_WDI3_TCL_DATA_CMD_ER_DESC_SIZE 32
	#define IPA_HW_WDI3_IPA2FW_ER_DESC_SIZE 8

	#define IPA_HW_WDI3_MAX_ER_DESC_SIZE \
	(((IPA_HW_WDI3_TCL_DATA_CMD_ER_DESC_SIZE) > \
	(IPA_HW_WDI3_IPA2FW_ER_DESC_SIZE)) ? \
	(IPA_HW_WDI3_TCL_DATA_CMD_ER_DESC_SIZE) : \
	(IPA_HW_WDI3_IPA2FW_ER_DESC_SIZE))

	#define IPA_WDI_MAX_SUPPORTED_SYS_PIPE 3

	enum ipa_wdi_version {
	IPA_WDI_1,
	IPA_WDI_2,
	IPA_WDI_3
	};

	/**
	* struct ipa_wdi_init_in_params - wdi init input parameters
	*
	* @wdi_version: wdi version
	* @notify: uc ready callback
	* @priv: uc ready callback cookie
	*/
	struct ipa_wdi_init_in_params {
	enum ipa_wdi_version wdi_version;
	ipa_uc_ready_cb notify;
	void *priv;
	ipa_wdi_meter_notifier_cb wdi_notify;
	};

	/**
	* struct ipa_wdi_init_out_params - wdi init output parameters
	*
	* @is_uC_ready: is uC ready. No API should be called until uC
	is ready.
	* @is_smmu_enable: is smmu enabled
	*/
	struct ipa_wdi_init_out_params {
	bool is_uC_ready;
	bool is_smmu_enabled;
	};

	/**
	* struct ipa_wdi_hdr_info - Header to install on IPA HW
	*
	* @hdr: header to install on IPA HW
	* @hdr_len: length of header
	* @dst_mac_addr_offset: destination mac address offset
	* @hdr_type: layer two header type
	*/
	struct ipa_wdi_hdr_info {
	u8 *hdr;
	u8 hdr_len;
	u8 dst_mac_addr_offset;
	enum ipa_hdr_l2_type hdr_type;
	};

	/**
	* struct ipa_wdi_reg_intf_in_params - parameters for uC offload
	* interface registration
	*
	* @netdev_name: network interface name
	* @hdr_info: header information
	* @is_meta_data_valid: if meta data is valid
	* @meta_data: meta data if any
	* @meta_data_mask: meta data mask
	*/
	struct ipa_wdi_reg_intf_in_params {
	const char *netdev_name;
	struct ipa_wdi_hdr_info hdr_info[IPA_IP_MAX];
	enum ipa_client_type alt_dst_pipe;
	u8 is_meta_data_valid;
	u32 meta_data;
	u32 meta_data_mask;
	};

	/**
	* struct ipa_wdi_pipe_setup_info - WDI TX/Rx configuration
	* @ipa_ep_cfg: ipa endpoint configuration
	* @client: type of "client"
	* @transfer_ring_base_pa: physical address of the base of the transfer ring
	* @transfer_ring_size: size of the transfer ring
	* @transfer_ring_doorbell_pa: physical address of the doorbell that
	IPA uC will update the tailpointer of the transfer ring
	* @event_ring_base_pa: physical address of the base of the event ring
	* @event_ring_size: event ring size
	* @event_ring_doorbell_pa: physical address of the doorbell that IPA uC
	will update the headpointer of the event ring
	* @num_pkt_buffers: Number of pkt buffers allocated. The size of the event
	ring and the transfer ring has to be atleast ( num_pkt_buffers + 1)
	* @pkt_offset: packet offset (wdi header length)
	* @desc_format_template[IPA_HW_WDI3_MAX_ER_DESC_SIZE]: Holds a cached
	template of the desc format
	*/
	struct ipa_wdi_pipe_setup_info {
	struct ipa_ep_cfg ipa_ep_cfg;
	enum ipa_client_type client;
	phys_addr_t transfer_ring_base_pa;
	u32 transfer_ring_size;
	phys_addr_t transfer_ring_doorbell_pa;

	phys_addr_t event_ring_base_pa;
	u32 event_ring_size;
	phys_addr_t event_ring_doorbell_pa;
	u16 num_pkt_buffers;

	u16 pkt_offset;

	u32 desc_format_template[IPA_HW_WDI3_MAX_ER_DESC_SIZE];
	};

	/**
	* struct ipa_wdi_pipe_setup_info_smmu - WDI TX/Rx configuration
	* @ipa_ep_cfg: ipa endpoint configuration
	* @client: type of "client"
	* @transfer_ring_base_pa: physical address of the base of the transfer ring
	* @transfer_ring_size: size of the transfer ring
	* @transfer_ring_doorbell_pa: physical address of the doorbell that
	IPA uC will update the tailpointer of the transfer ring
	* @event_ring_base_pa: physical address of the base of the event ring
	* @event_ring_size: event ring size
	* @event_ring_doorbell_pa: physical address of the doorbell that IPA uC
	will update the headpointer of the event ring
	* @num_pkt_buffers: Number of pkt buffers allocated. The size of the event
	ring and the transfer ring has to be atleast ( num_pkt_buffers + 1)
	* @pkt_offset: packet offset (wdi header length)
	* @desc_format_template[IPA_HW_WDI3_MAX_ER_DESC_SIZE]: Holds a cached
	template of the desc format
	*/
	struct ipa_wdi_pipe_setup_info_smmu {
	struct ipa_ep_cfg ipa_ep_cfg;
	enum ipa_client_type client;
	struct sg_table transfer_ring_base;
	u32 transfer_ring_size;
	phys_addr_t transfer_ring_doorbell_pa;

	struct sg_table event_ring_base;
	u32 event_ring_size;
	phys_addr_t event_ring_doorbell_pa;
	u16 num_pkt_buffers;

	u16 pkt_offset;

	u32 desc_format_template[IPA_HW_WDI3_MAX_ER_DESC_SIZE];
	};

	/**
	* struct ipa_wdi_conn_in_params - information provided by
	* uC offload client
	* @notify: client callback function
	* @priv: client cookie
	* @is_smmu_enabled: if smmu is enabled
	* @num_sys_pipe_needed: number of sys pipe needed
	* @sys_in: parameters to setup sys pipe in mcc mode
	* @tx: parameters to connect TX pipe(from IPA to WLAN)
	* @tx_smmu: smmu parameters to connect TX pipe(from IPA to WLAN)
	* @rx: parameters to connect RX pipe(from WLAN to IPA)
	* @rx_smmu: smmu parameters to connect RX pipe(from WLAN to IPA)
	*/
	struct ipa_wdi_conn_in_params {
	ipa_notify_cb notify;
	void *priv;
	bool is_smmu_enabled;
	u8 num_sys_pipe_needed;
	struct ipa_sys_connect_params sys_in[IPA_WDI_MAX_SUPPORTED_SYS_PIPE];
	union {
	struct ipa_wdi_pipe_setup_info tx;
	struct ipa_wdi_pipe_setup_info_smmu tx_smmu;
	} u_tx;
	union {
	struct ipa_wdi_pipe_setup_info rx;
	struct ipa_wdi_pipe_setup_info_smmu rx_smmu;
	} u_rx;
	};

	/**
	* struct ipa_wdi_conn_out_params - information provided
	* to WLAN driver
	* @tx_uc_db_pa: physical address of IPA uC doorbell for TX
	* @rx_uc_db_pa: physical address of IPA uC doorbell for RX
	*/
	struct ipa_wdi_conn_out_params {
	phys_addr_t tx_uc_db_pa;
	phys_addr_t rx_uc_db_pa;
	};

	/**
	* struct ipa_wdi_perf_profile - To set BandWidth profile
	*
	* @client: type of client
	* @max_supported_bw_mbps: maximum bandwidth needed (in Mbps)
	*/
	struct ipa_wdi_perf_profile {
	enum ipa_client_type client;
	u32 max_supported_bw_mbps;
	};

	#if defined CONFIG_IPA \|\| defined CONFIG_IPA3

	/**
	* ipa_wdi_init - Client should call this function to
	* init WDI IPA offload data path
	*
	* Note: Should not be called from atomic context and only
	* after checking IPA readiness using ipa_register_ipa_ready_cb()
	*
	* @Return 0 on success, negative on failure
	*/
	int ipa_wdi_init(struct ipa_wdi_init_in_params *in,
	struct ipa_wdi_init_out_params *out);

	/**
	* ipa_wdi_cleanup - Client should call this function to
	* clean up WDI IPA offload data path
	*
	* @Return 0 on success, negative on failure
	*/
	int ipa_wdi_cleanup(void);

	/**
	* ipa_wdi_reg_intf - Client should call this function to
	* register interface
	*
	* Note: Should not be called from atomic context
	*
	* @Return 0 on success, negative on failure
	*/
	int ipa_wdi_reg_intf(
	struct ipa_wdi_reg_intf_in_params *in);

	/**
	* ipa_wdi_dereg_intf - Client Driver should call this
	* function to deregister before unload and after disconnect
	*
	* @Return 0 on success, negative on failure
	*/
	int ipa_wdi_dereg_intf(const char *netdev_name);

	/**
	* ipa_wdi_conn_pipes - Client should call this
	* function to connect pipes
	*
	* @in: [in] input parameters from client
	* @out: [out] output params to client
	*
	* Note: Should not be called from atomic context
	*
	* @Return 0 on success, negative on failure
	*/
	int ipa_wdi_conn_pipes(struct ipa_wdi_conn_in_params *in,
	struct ipa_wdi_conn_out_params *out);

	/**
	* ipa_wdi_disconn_pipes() - Client should call this
	* function to disconnect pipes
	*
	* Note: Should not be called from atomic context
	*
	* Returns: 0 on success, negative on failure
	*/
	int ipa_wdi_disconn_pipes(void);

	/**
	* ipa_wdi_enable_pipes() - Client should call this
	* function to enable IPA offload data path
	*
	* Note: Should not be called from atomic context
	*
	* Returns: 0 on success, negative on failure
	*/
	int ipa_wdi_enable_pipes(void);

	/**
	* ipa_wdi_disable_pipes() - Client should call this
	* function to disable IPA offload data path
	*
	* Note: Should not be called from atomic context
	*
	* Returns: 0 on success, negative on failure
	*/
	int ipa_wdi_disable_pipes(void);

	/**
	* ipa_wdi_set_perf_profile() - Client should call this function to
	* set IPA clock bandwidth based on data rates
	*
	* @profile: [in] BandWidth profile to use
	*
	* Returns: 0 on success, negative on failure
	*/
	int ipa_wdi_set_perf_profile(struct ipa_wdi_perf_profile *profile);

	/**
	* ipa_wdi_create_smmu_mapping() - Create smmu mapping
	*
	* @num_buffers: number of buffers
	*
	* @info: wdi buffer info
	*/
	int ipa_wdi_create_smmu_mapping(u32 num_buffers,
	struct ipa_wdi_buffer_info *info);

	/**
	* ipa_wdi_release_smmu_mapping() - Release smmu mapping
	*
	* @num_buffers: number of buffers
	*
	* @info: wdi buffer info
	*/
	int ipa_wdi_release_smmu_mapping(u32 num_buffers,
	struct ipa_wdi_buffer_info *info);

	/**
	* ipa_wdi_get_stats() - Query WDI statistics
	* @stats: [inout] stats blob from client populated by driver
	*
	* Returns: 0 on success, negative on failure
	*
	* @note Cannot be called from atomic context
	*
	*/
	int ipa_wdi_get_stats(struct IpaHwStatsWDIInfoData_t *stats);

	#else /* (CONFIG_IPA \|\| CONFIG_IPA3) */

	static inline int ipa_wdi_init(struct ipa_wdi_init_in_params *in,
	struct ipa_wdi_init_out_params *out)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_cleanup(void)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_reg_intf(
	struct ipa_wdi_reg_intf_in_params *in)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_dereg_intf(const char *netdev_name)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_conn_pipes(struct ipa_wdi_conn_in_params *in,
	struct ipa_wdi_conn_out_params *out)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_disconn_pipes(void)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_enable_pipes(void)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_disable_pipes(void)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_set_perf_profile(
	struct ipa_wdi_perf_profile *profile)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_create_smmu_mapping(u32 num_buffers,
	struct ipa_wdi_buffer_info *info)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_release_smmu_mapping(u32 num_buffers,
	struct ipa_wdi_buffer_info *info)
	{
	return -EPERM;
	}

	static inline int ipa_wdi_get_stats(struct IpaHwStatsWDIInfoData_t *stats)
	{
	return -EPERM;
	}

	#endif /* CONFIG_IPA3 */

	#endif /* _IPA_WDI3_H_ */