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// SPDX-License-Identifier: GPL-2.0+
/*
* Freescale Layerscape MC I/O wrapper
*
* Copyright 2013-2016 Freescale Semiconductor, Inc.
* Copyright 2017-2023 NXP
*/
#include <fsl-mc/fsl_mc_sys.h>
#include <fsl-mc/fsl_mc_cmd.h>
#include <fsl-mc/fsl_dpbp.h>
/**
* dpbp_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_'
* @dpbp_id: DPBP 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 dpbp_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 dpbp_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpbp_id, u16 *token)
{
struct dpbp_cmd_open *cmd_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_OPEN,
cmd_flags, 0);
cmd_params = (struct dpbp_cmd_open *)cmd.params;
cmd_params->dpbp_id = cpu_to_le32(dpbp_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 err;
}
/**
* dpbp_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 DPBP 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 dpbp_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLOSE, cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpbp_create() - Create the DPBP object.
* @mc_io: Pointer to MC portal's I/O object
* @dprc_token: Parent container token; '0' for default container
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @cfg: Configuration structure
* @obj_id: Returned object id; use in subsequent API calls
*
* Create the DPBP object, allocate required resources and
* perform required initialization.
*
* This function accepts an authentication token of a parent
* container that this object should be assigned to and returns
* an object id. This object_id will be used in all subsequent calls to
* this specific object.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpbp_create(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
const struct dpbp_cfg *cfg, u32 *obj_id)
{
struct mc_command cmd = { 0 };
int err;
(void)(cfg); /* unused */
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE,
cmd_flags, dprc_token);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
*obj_id = mc_cmd_read_object_id(&cmd);
return 0;
}
/**
* dpbp_destroy() - Destroy the DPBP object and release all its resources.
* @mc_io: Pointer to MC portal's I/O object
* @dprc_token: Parent container token; '0' for default container
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @obj_id: ID of DPBP object
*
* Return: '0' on Success; error code otherwise.
*/
int dpbp_destroy(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
u32 obj_id)
{
struct dpbp_cmd_destroy *cmd_params;
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_DESTROY,
cmd_flags, dprc_token);
cmd_params = (struct dpbp_cmd_destroy *)cmd.params;
cmd_params->object_id = cpu_to_le32(obj_id);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpbp_enable() - Enable the DPBP.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPBP object
*
* Return: '0' on Success; Error code otherwise.
*/
int dpbp_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_ENABLE, cmd_flags,
token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpbp_disable() - Disable the DPBP.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPBP object
*
* Return: '0' on Success; Error code otherwise.
*/
int dpbp_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_DISABLE,
cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpbp_reset() - Reset the DPBP, 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 DPBP object
*
* Return: '0' on Success; Error code otherwise.
*/
int dpbp_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_RESET,
cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpbp_get_attributes - Retrieve DPBP 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 DPBP object
* @attr: Returned object's attributes
*
* Return: '0' on Success; Error code otherwise.
*/
int dpbp_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
struct dpbp_attr *attr)
{
struct dpbp_rsp_get_attributes *rsp_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_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 dpbp_rsp_get_attributes *)cmd.params;
attr->bpid = le16_to_cpu(rsp_params->bpid);
attr->id = le32_to_cpu(rsp_params->id);
return 0;
}
/**
* dpbp_get_api_version - Get Data Path Buffer Pool API version
* @mc_io: Pointer to Mc portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @major_ver: Major version of Buffer Pool API
* @minor_ver: Minor version of Buffer Pool API
*
* Return: '0' on Success; Error code otherwise.
*/
int dpbp_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
u16 *major_ver, u16 *minor_ver)
{
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_API_VERSION,
cmd_flags, 0);
/* send command to mc */
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
return 0;
}
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