drivers/dma/fsl-dpaa2-qdma/dpdmai.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 // Copyright 2019 NXP

 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/io.h>
 #include <linux/fsl/mc.h>
 #include "dpdmai.h"

 struct dpdmai_rsp_get_attributes {
 	__le32 id;
 	u8 num_of_priorities;
 	u8 pad0[3];
 	__le16 major;
 	__le16 minor;
 };

 struct dpdmai_cmd_queue {
 	__le32 dest_id;
 	u8 priority;
 	u8 queue;
 	u8 dest_type;
 	u8 pad;
 	__le64 user_ctx;
 	union {
 		__le32 options;
 		__le32 fqid;
 	};
 };

 struct dpdmai_rsp_get_tx_queue {
 	__le64 pad;
 	__le32 fqid;
 };

 #define MC_CMD_OP(_cmd, _param, _offset, _width, _type, _arg) \
 	((_cmd).params[_param] |= mc_enc((_offset), (_width), _arg))

 /* cmd, param, offset, width, type, arg_name */
 #define DPDMAI_CMD_CREATE(cmd, cfg) \
 do { \
 	MC_CMD_OP(cmd, 0, 8,  8,  u8,  (cfg)->priorities[0]);\
 	MC_CMD_OP(cmd, 0, 16, 8,  u8,  (cfg)->priorities[1]);\
 } while (0)

 static inline u64 mc_enc(int lsoffset, int width, u64 val)
 {
 	return (val & MAKE_UMASK64(width)) << lsoffset;
 }

 /**
  * dpdmai_open() - Open a control session for the specified object
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @dpdmai_id:	DPDMAI unique ID
  * @token:	Returned token; use in subsequent API calls
  *
  * This function can be used to open a control session for an
  * already created object; an object may have been declared in
  * the DPL or by calling the dpdmai_create() function.
  * This function returns a unique authentication token,
  * associated with the specific object ID and the specific MC
  * portal; this token must be used in all subsequent commands for
  * this specific object.
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_open(struct fsl_mc_io *mc_io, u32 cmd_flags,
 		int dpdmai_id, u16 *token)
 {
 	struct fsl_mc_command cmd = { 0 };
 	__le64 *cmd_dpdmai_id;
 	int err;

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_OPEN,
 					  cmd_flags, 0);

 	cmd_dpdmai_id = cmd.params;
 	*cmd_dpdmai_id = cpu_to_le32(dpdmai_id);

 	/* send command to mc*/
 	err = mc_send_command(mc_io, &cmd);
 	if (err)
 		return err;

 	/* retrieve response parameters */
 	*token = mc_cmd_hdr_read_token(&cmd);

 	return 0;
 }
 EXPORT_SYMBOL_GPL(dpdmai_open);

 /**
  * dpdmai_close() - Close the control session of the object
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @token:	Token of DPDMAI object
  *
  * After this function is called, no further operations are
  * allowed on the object without opening a new control session.
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
 {
 	struct fsl_mc_command cmd = { 0 };

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CLOSE,
 					  cmd_flags, token);

 	/* send command to mc*/
 	return mc_send_command(mc_io, &cmd);
 }
 EXPORT_SYMBOL_GPL(dpdmai_close);

 /**
  * dpdmai_create() - Create the DPDMAI object
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @cfg:	Configuration structure
  * @token:	Returned token; use in subsequent API calls
  *
  * Create the DPDMAI object, allocate required resources and
  * perform required initialization.
  *
  * The object can be created either by declaring it in the
  * DPL file, or by calling this function.
  *
  * This function returns a unique authentication token,
  * associated with the specific object ID and the specific MC
  * portal; this token must be used in all subsequent calls to
  * this specific object. For objects that are created using the
  * DPL file, call dpdmai_open() function to get an authentication
  * token first.
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_create(struct fsl_mc_io *mc_io, u32 cmd_flags,
 		  const struct dpdmai_cfg *cfg, u16 *token)
 {
 	struct fsl_mc_command cmd = { 0 };
 	int err;

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CREATE,
 					  cmd_flags, 0);
 	DPDMAI_CMD_CREATE(cmd, cfg);

 	/* send command to mc*/
 	err = mc_send_command(mc_io, &cmd);
 	if (err)
 		return err;

 	/* retrieve response parameters */
 	*token = mc_cmd_hdr_read_token(&cmd);

 	return 0;
 }

 /**
  * dpdmai_enable() - Enable the DPDMAI, allow sending and receiving frames.
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @token:	Token of DPDMAI object
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
 {
 	struct fsl_mc_command cmd = { 0 };

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_ENABLE,
 					  cmd_flags, token);

 	/* send command to mc*/
 	return mc_send_command(mc_io, &cmd);
 }
 EXPORT_SYMBOL_GPL(dpdmai_enable);

 /**
  * dpdmai_disable() - Disable the DPDMAI, stop sending and receiving frames.
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @token:	Token of DPDMAI object
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
 {
 	struct fsl_mc_command cmd = { 0 };

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DISABLE,
 					  cmd_flags, token);

 	/* send command to mc*/
 	return mc_send_command(mc_io, &cmd);
 }
 EXPORT_SYMBOL_GPL(dpdmai_disable);

 /**
  * dpdmai_reset() - Reset the DPDMAI, returns the object to initial state.
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @token:	Token of DPDMAI object
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
 {
 	struct fsl_mc_command cmd = { 0 };

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_RESET,
 					  cmd_flags, token);

 	/* send command to mc*/
 	return mc_send_command(mc_io, &cmd);
 }
 EXPORT_SYMBOL_GPL(dpdmai_reset);

 /**
  * dpdmai_get_attributes() - Retrieve DPDMAI attributes.
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @token:	Token of DPDMAI object
  * @attr:	Returned object's attributes
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags,
 			  u16 token, struct dpdmai_attr *attr)
 {
 	struct dpdmai_rsp_get_attributes *rsp_params;
 	struct fsl_mc_command cmd = { 0 };
 	int err;

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_ATTR,
 					  cmd_flags, token);

 	/* send command to mc*/
 	err = mc_send_command(mc_io, &cmd);
 	if (err)
 		return err;

 	/* retrieve response parameters */
 	rsp_params = (struct dpdmai_rsp_get_attributes *)cmd.params;
 	attr->id = le32_to_cpu(rsp_params->id);
 	attr->version.major = le16_to_cpu(rsp_params->major);
 	attr->version.minor = le16_to_cpu(rsp_params->minor);
 	attr->num_of_priorities = rsp_params->num_of_priorities;

 	return 0;
 }
 EXPORT_SYMBOL_GPL(dpdmai_get_attributes);

 /**
  * dpdmai_set_rx_queue() - Set Rx queue configuration
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @token:	Token of DPDMAI object
  * @priority:	Select the queue relative to number of
  *		priorities configured at DPDMAI creation
  * @cfg:	Rx queue configuration
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
 			u8 priority, const struct dpdmai_rx_queue_cfg *cfg)
 {
 	struct dpdmai_cmd_queue *cmd_params;
 	struct fsl_mc_command cmd = { 0 };

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_SET_RX_QUEUE,
 					  cmd_flags, token);

 	cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
 	cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
 	cmd_params->priority = cfg->dest_cfg.priority;
 	cmd_params->queue = priority;
 	cmd_params->dest_type = cfg->dest_cfg.dest_type;
 	cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
 	cmd_params->options = cpu_to_le32(cfg->options);

 	/* send command to mc*/
 	return mc_send_command(mc_io, &cmd);
 }
 EXPORT_SYMBOL_GPL(dpdmai_set_rx_queue);

 /**
  * dpdmai_get_rx_queue() - Retrieve Rx queue attributes.
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @token:	Token of DPDMAI object
  * @priority:	Select the queue relative to number of
  *				priorities configured at DPDMAI creation
  * @attr:	Returned Rx queue attributes
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
 			u8 priority, struct dpdmai_rx_queue_attr *attr)
 {
 	struct dpdmai_cmd_queue *cmd_params;
 	struct fsl_mc_command cmd = { 0 };
 	int err;

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_RX_QUEUE,
 					  cmd_flags, token);

 	cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
 	cmd_params->queue = priority;

 	/* send command to mc*/
 	err = mc_send_command(mc_io, &cmd);
 	if (err)
 		return err;

 	/* retrieve response parameters */
 	attr->dest_cfg.dest_id = le32_to_cpu(cmd_params->dest_id);
 	attr->dest_cfg.priority = cmd_params->priority;
 	attr->dest_cfg.dest_type = cmd_params->dest_type;
 	attr->user_ctx = le64_to_cpu(cmd_params->user_ctx);
 	attr->fqid = le32_to_cpu(cmd_params->fqid);

 	return 0;
 }
 EXPORT_SYMBOL_GPL(dpdmai_get_rx_queue);

 /**
  * dpdmai_get_tx_queue() - Retrieve Tx queue attributes.
  * @mc_io:	Pointer to MC portal's I/O object
  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
  * @token:	Token of DPDMAI object
  * @priority:	Select the queue relative to number of
  *			priorities configured at DPDMAI creation
  * @fqid:	Returned Tx queue
  *
  * Return:	'0' on Success; Error code otherwise.
  */
 int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
 			u16 token, u8 priority, u32 *fqid)
 {
 	struct dpdmai_rsp_get_tx_queue *rsp_params;
 	struct dpdmai_cmd_queue *cmd_params;
 	struct fsl_mc_command cmd = { 0 };
 	int err;

 	/* prepare command */
 	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_TX_QUEUE,
 					  cmd_flags, token);

 	cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
 	cmd_params->queue = priority;

 	/* send command to mc*/
 	err = mc_send_command(mc_io, &cmd);
 	if (err)
 		return err;

 	/* retrieve response parameters */

 	rsp_params = (struct dpdmai_rsp_get_tx_queue *)cmd.params;
 	*fqid = le32_to_cpu(rsp_params->fqid);

 	return 0;
 }
 EXPORT_SYMBOL_GPL(dpdmai_get_tx_queue);

 MODULE_LICENSE("GPL v2");
	// SPDX-License-Identifier: GPL-2.0
	// Copyright 2019 NXP

	#include <linux/module.h>
	#include <linux/types.h>
	#include <linux/io.h>
	#include <linux/fsl/mc.h>
	#include "dpdmai.h"

	struct dpdmai_rsp_get_attributes {
	__le32 id;
	u8 num_of_priorities;
	u8 pad0[3];
	__le16 major;
	__le16 minor;
	};

	struct dpdmai_cmd_queue {
	__le32 dest_id;
	u8 priority;
	u8 queue;
	u8 dest_type;
	u8 pad;
	__le64 user_ctx;
	union {
	__le32 options;
	__le32 fqid;
	};
	};

	struct dpdmai_rsp_get_tx_queue {
	__le64 pad;
	__le32 fqid;
	};

	#define MC_CMD_OP(_cmd, _param, _offset, _width, _type, _arg) \
	((_cmd).params[_param] \|= mc_enc((_offset), (_width), _arg))

	/* cmd, param, offset, width, type, arg_name */
	#define DPDMAI_CMD_CREATE(cmd, cfg) \
	do { \
	MC_CMD_OP(cmd, 0, 8, 8, u8, (cfg)->priorities[0]);\
	MC_CMD_OP(cmd, 0, 16, 8, u8, (cfg)->priorities[1]);\
	} while (0)

	static inline u64 mc_enc(int lsoffset, int width, u64 val)
	{
	return (val & MAKE_UMASK64(width)) << lsoffset;
	}

	/**
	* dpdmai_open() - Open a control session for the specified object
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @dpdmai_id: DPDMAI unique ID
	* @token: Returned token; use in subsequent API calls
	*
	* This function can be used to open a control session for an
	* already created object; an object may have been declared in
	* the DPL or by calling the dpdmai_create() function.
	* This function returns a unique authentication token,
	* associated with the specific object ID and the specific MC
	* portal; this token must be used in all subsequent commands for
	* this specific object.
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_open(struct fsl_mc_io *mc_io, u32 cmd_flags,
	int dpdmai_id, u16 *token)
	{
	struct fsl_mc_command cmd = { 0 };
	__le64 *cmd_dpdmai_id;
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_OPEN,
	cmd_flags, 0);

	cmd_dpdmai_id = cmd.params;
	*cmd_dpdmai_id = cpu_to_le32(dpdmai_id);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
	return err;

	/* retrieve response parameters */
	*token = mc_cmd_hdr_read_token(&cmd);

	return 0;
	}
	EXPORT_SYMBOL_GPL(dpdmai_open);

	/**
	* dpdmai_close() - Close the control session of the object
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @token: Token of DPDMAI object
	*
	* After this function is called, no further operations are
	* allowed on the object without opening a new control session.
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
	{
	struct fsl_mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CLOSE,
	cmd_flags, token);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
	}
	EXPORT_SYMBOL_GPL(dpdmai_close);

	/**
	* dpdmai_create() - Create the DPDMAI object
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @cfg: Configuration structure
	* @token: Returned token; use in subsequent API calls
	*
	* Create the DPDMAI object, allocate required resources and
	* perform required initialization.
	*
	* The object can be created either by declaring it in the
	* DPL file, or by calling this function.
	*
	* This function returns a unique authentication token,
	* associated with the specific object ID and the specific MC
	* portal; this token must be used in all subsequent calls to
	* this specific object. For objects that are created using the
	* DPL file, call dpdmai_open() function to get an authentication
	* token first.
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_create(struct fsl_mc_io *mc_io, u32 cmd_flags,
	const struct dpdmai_cfg cfg, u16 token)
	{
	struct fsl_mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_CREATE,
	cmd_flags, 0);
	DPDMAI_CMD_CREATE(cmd, cfg);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
	return err;

	/* retrieve response parameters */
	*token = mc_cmd_hdr_read_token(&cmd);

	return 0;
	}

	/**
	* dpdmai_enable() - Enable the DPDMAI, allow sending and receiving frames.
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @token: Token of DPDMAI object
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
	{
	struct fsl_mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_ENABLE,
	cmd_flags, token);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
	}
	EXPORT_SYMBOL_GPL(dpdmai_enable);

	/**
	* dpdmai_disable() - Disable the DPDMAI, stop sending and receiving frames.
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @token: Token of DPDMAI object
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
	{
	struct fsl_mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DISABLE,
	cmd_flags, token);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
	}
	EXPORT_SYMBOL_GPL(dpdmai_disable);

	/**
	* dpdmai_reset() - Reset the DPDMAI, returns the object to initial state.
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @token: Token of DPDMAI object
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
	{
	struct fsl_mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_RESET,
	cmd_flags, token);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
	}
	EXPORT_SYMBOL_GPL(dpdmai_reset);

	/**
	* dpdmai_get_attributes() - Retrieve DPDMAI attributes.
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @token: Token of DPDMAI object
	* @attr: Returned object's attributes
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags,
	u16 token, struct dpdmai_attr *attr)
	{
	struct dpdmai_rsp_get_attributes *rsp_params;
	struct fsl_mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_ATTR,
	cmd_flags, token);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
	return err;

	/* retrieve response parameters */
	rsp_params = (struct dpdmai_rsp_get_attributes *)cmd.params;
	attr->id = le32_to_cpu(rsp_params->id);
	attr->version.major = le16_to_cpu(rsp_params->major);
	attr->version.minor = le16_to_cpu(rsp_params->minor);
	attr->num_of_priorities = rsp_params->num_of_priorities;

	return 0;
	}
	EXPORT_SYMBOL_GPL(dpdmai_get_attributes);

	/**
	* dpdmai_set_rx_queue() - Set Rx queue configuration
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @token: Token of DPDMAI object
	* @priority: Select the queue relative to number of
	* priorities configured at DPDMAI creation
	* @cfg: Rx queue configuration
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
	u8 priority, const struct dpdmai_rx_queue_cfg *cfg)
	{
	struct dpdmai_cmd_queue *cmd_params;
	struct fsl_mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_SET_RX_QUEUE,
	cmd_flags, token);

	cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
	cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
	cmd_params->priority = cfg->dest_cfg.priority;
	cmd_params->queue = priority;
	cmd_params->dest_type = cfg->dest_cfg.dest_type;
	cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
	cmd_params->options = cpu_to_le32(cfg->options);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
	}
	EXPORT_SYMBOL_GPL(dpdmai_set_rx_queue);

	/**
	* dpdmai_get_rx_queue() - Retrieve Rx queue attributes.
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @token: Token of DPDMAI object
	* @priority: Select the queue relative to number of
	* priorities configured at DPDMAI creation
	* @attr: Returned Rx queue attributes
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
	u8 priority, struct dpdmai_rx_queue_attr *attr)
	{
	struct dpdmai_cmd_queue *cmd_params;
	struct fsl_mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_RX_QUEUE,
	cmd_flags, token);

	cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
	cmd_params->queue = priority;

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
	return err;

	/* retrieve response parameters */
	attr->dest_cfg.dest_id = le32_to_cpu(cmd_params->dest_id);
	attr->dest_cfg.priority = cmd_params->priority;
	attr->dest_cfg.dest_type = cmd_params->dest_type;
	attr->user_ctx = le64_to_cpu(cmd_params->user_ctx);
	attr->fqid = le32_to_cpu(cmd_params->fqid);

	return 0;
	}
	EXPORT_SYMBOL_GPL(dpdmai_get_rx_queue);

	/**
	* dpdmai_get_tx_queue() - Retrieve Tx queue attributes.
	* @mc_io: Pointer to MC portal's I/O object
	* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
	* @token: Token of DPDMAI object
	* @priority: Select the queue relative to number of
	* priorities configured at DPDMAI creation
	* @fqid: Returned Tx queue
	*
	* Return: '0' on Success; Error code otherwise.
	*/
	int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
	u16 token, u8 priority, u32 *fqid)
	{
	struct dpdmai_rsp_get_tx_queue *rsp_params;
	struct dpdmai_cmd_queue *cmd_params;
	struct fsl_mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_GET_TX_QUEUE,
	cmd_flags, token);

	cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
	cmd_params->queue = priority;

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
	return err;

	/* retrieve response parameters */

	rsp_params = (struct dpdmai_rsp_get_tx_queue *)cmd.params;
	*fqid = le32_to_cpu(rsp_params->fqid);

	return 0;
	}
	EXPORT_SYMBOL_GPL(dpdmai_get_tx_queue);

	MODULE_LICENSE("GPL v2");