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https://github.com/AsahiLinux/u-boot
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694dc0dd79
Sync the Data Path Buffer Pool APIs to their latest form, this means the layout of each command is created based on structures which clearly describe the endianness of each field rather than some macros. The command version is kept in place, meaning that the minimum MC version accepted is not changed in any way. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
264 lines
7.1 KiB
C
264 lines
7.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Freescale Layerscape MC I/O wrapper
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*
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* Copyright 2013-2016 Freescale Semiconductor, Inc.
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* Copyright 2017-2023 NXP
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*/
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#include <fsl-mc/fsl_mc_sys.h>
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#include <fsl-mc/fsl_mc_cmd.h>
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#include <fsl-mc/fsl_dpbp.h>
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/**
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* dpbp_open() - Open a control session for the specified object.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @dpbp_id: DPBP unique ID
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* @token: Returned token; use in subsequent API calls
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*
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* This function can be used to open a control session for an
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* already created object; an object may have been declared in
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* the DPL or by calling the dpbp_create function.
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* This function returns a unique authentication token,
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* associated with the specific object ID and the specific MC
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* portal; this token must be used in all subsequent commands for
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* this specific object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpbp_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpbp_id, u16 *token)
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{
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struct dpbp_cmd_open *cmd_params;
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_OPEN,
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cmd_flags, 0);
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cmd_params = (struct dpbp_cmd_open *)cmd.params;
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cmd_params->dpbp_id = cpu_to_le32(dpbp_id);
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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*token = mc_cmd_hdr_read_token(&cmd);
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return err;
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}
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/**
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* dpbp_close() - Close the control session of the object
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPBP object
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*
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* After this function is called, no further operations are
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* allowed on the object without opening a new control session.
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpbp_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLOSE, cmd_flags,
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token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpbp_create() - Create the DPBP object.
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* @mc_io: Pointer to MC portal's I/O object
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* @dprc_token: Parent container token; '0' for default container
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @cfg: Configuration structure
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* @obj_id: Returned object id; use in subsequent API calls
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*
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* Create the DPBP object, allocate required resources and
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* perform required initialization.
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*
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* This function accepts an authentication token of a parent
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* container that this object should be assigned to and returns
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* an object id. This object_id will be used in all subsequent calls to
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* this specific object.
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpbp_create(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
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const struct dpbp_cfg *cfg, u32 *obj_id)
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{
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struct mc_command cmd = { 0 };
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int err;
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(void)(cfg); /* unused */
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE,
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cmd_flags, dprc_token);
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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*obj_id = mc_cmd_read_object_id(&cmd);
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return 0;
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}
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/**
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* dpbp_destroy() - Destroy the DPBP object and release all its resources.
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* @mc_io: Pointer to MC portal's I/O object
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* @dprc_token: Parent container token; '0' for default container
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @obj_id: ID of DPBP object
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*
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* Return: '0' on Success; error code otherwise.
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*/
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int dpbp_destroy(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
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u32 obj_id)
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{
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struct dpbp_cmd_destroy *cmd_params;
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_DESTROY,
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cmd_flags, dprc_token);
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cmd_params = (struct dpbp_cmd_destroy *)cmd.params;
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cmd_params->object_id = cpu_to_le32(obj_id);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpbp_enable() - Enable the DPBP.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPBP object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpbp_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_ENABLE, cmd_flags,
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token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpbp_disable() - Disable the DPBP.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPBP object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpbp_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_DISABLE,
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cmd_flags, token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpbp_reset() - Reset the DPBP, returns the object to initial state.
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPBP object
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpbp_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
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{
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struct mc_command cmd = { 0 };
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_RESET,
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cmd_flags, token);
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/* send command to mc*/
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return mc_send_command(mc_io, &cmd);
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}
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/**
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* dpbp_get_attributes - Retrieve DPBP attributes.
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*
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* @mc_io: Pointer to MC portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @token: Token of DPBP object
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* @attr: Returned object's attributes
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpbp_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
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struct dpbp_attr *attr)
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{
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struct dpbp_rsp_get_attributes *rsp_params;
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_ATTR,
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cmd_flags, token);
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/* send command to mc*/
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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rsp_params = (struct dpbp_rsp_get_attributes *)cmd.params;
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attr->bpid = le16_to_cpu(rsp_params->bpid);
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attr->id = le32_to_cpu(rsp_params->id);
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return 0;
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}
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/**
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* dpbp_get_api_version - Get Data Path Buffer Pool API version
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* @mc_io: Pointer to Mc portal's I/O object
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* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
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* @major_ver: Major version of Buffer Pool API
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* @minor_ver: Minor version of Buffer Pool API
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*
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* Return: '0' on Success; Error code otherwise.
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*/
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int dpbp_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
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u16 *major_ver, u16 *minor_ver)
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{
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struct mc_command cmd = { 0 };
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int err;
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/* prepare command */
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cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_API_VERSION,
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cmd_flags, 0);
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/* send command to mc */
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err = mc_send_command(mc_io, &cmd);
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if (err)
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return err;
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/* retrieve response parameters */
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mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
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return 0;
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}
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