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// SPDX-License-Identifier: GPL-2.0+
/*
* Freescale Layerscape MC I/O wrapper
*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
* Author: Prabhakar Kushwaha <prabhakar@freescale.com>
*/
#include <fsl-mc/fsl_mc_sys.h>
#include <fsl-mc/fsl_mc_cmd.h>
#include <fsl-mc/fsl_dpmac.h>
/**
* dpmac_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_'
* @dpmac_id: DPMAC 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 dpmac_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 dpmac_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpmac_id, u16 *token)
{
struct dpmac_cmd_open *cmd_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_OPEN, cmd_flags, 0);
cmd_params = (struct dpmac_cmd_open *)cmd.params;
cmd_params->dpmac_id = cpu_to_le32(dpmac_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;
}
/**
* dpmac_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 DPMAC 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 dpmac_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(DPMAC_CMDID_CLOSE, cmd_flags, token);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpmac_create() - Create the DPMAC 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
*
* Create the DPMAC object, allocate required resources and
* perform required initialization.
*
* The function accepts an authentication token of a parent
* container that this object should be assigned to. The token
* can be '0' so the object will be assigned to the default container.
* The newly created object can be opened with the returned
* object id and using the container's associated tokens and MC portals.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmac_create(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
const struct dpmac_cfg *cfg, u32 *obj_id)
{
struct dpmac_cmd_create *cmd_params;
struct mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CREATE, cmd_flags, dprc_token);
cmd_params = (struct dpmac_cmd_create *)cmd.params;
cmd_params->mac_id = cpu_to_le32(cfg->mac_id);
/* 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;
}
/**
* dpmac_destroy() - Destroy the DPMAC 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_'
* @object_id: The object id; it must be a valid id within the container that
* created this object;
*
* The function accepts the authentication token of the parent container that
* created the object (not the one that currently owns the object). The object
* is searched within parent using the provided 'object_id'.
* All tokens to the object must be closed before calling destroy.
*
* Return: '0' on Success; error code otherwise.
*/
int dpmac_destroy(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags,
u32 object_id)
{
struct dpmac_cmd_destroy *cmd_params;
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_DESTROY,
cmd_flags,
dprc_token);
cmd_params = (struct dpmac_cmd_destroy *)cmd.params;
cmd_params->dpmac_id = cpu_to_le32(object_id);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpmac_set_link_state() - Set the Ethernet link status
* @mc_io: Pointer to opaque I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPMAC object
* @link_state: Link state configuration
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmac_set_link_state(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
struct dpmac_link_state *link_state)
{
struct dpmac_cmd_set_link_state *cmd_params;
struct mc_command cmd = { 0 };
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_LINK_STATE, cmd_flags, token);
cmd_params = (struct dpmac_cmd_set_link_state *)cmd.params;
cmd_params->options = cpu_to_le64(link_state->options);
cmd_params->rate = cpu_to_le32(link_state->rate);
cmd_params->up = dpmac_get_field(link_state->up, STATE);
dpmac_set_field(cmd_params->up, STATE_VALID, link_state->state_valid);
cmd_params->supported = cpu_to_le64(link_state->supported);
cmd_params->advertising = cpu_to_le64(link_state->advertising);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
/**
* dpmac_get_counter() - Read a specific DPMAC counter
* @mc_io: Pointer to opaque I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPMAC object
* @type: The requested counter
* @counter: Returned counter value
*
* Return: The requested counter; '0' otherwise.
*/
int dpmac_get_counter(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
enum dpmac_counter type, uint64_t *counter)
{
struct dpmac_cmd_get_counter *dpmac_cmd;
struct dpmac_rsp_get_counter *dpmac_rsp;
struct mc_command cmd = { 0 };
int err = 0;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_COUNTER,
cmd_flags,
token);
dpmac_cmd = (struct dpmac_cmd_get_counter *)cmd.params;
dpmac_cmd->type = type;
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
dpmac_rsp = (struct dpmac_rsp_get_counter *)cmd.params;
*counter = le64_to_cpu(dpmac_rsp->counter);
return 0;
}
/**
* dpmac_get_api_version() - Get Data Path MAC 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 data path mac API
* @minor_ver: Minor version of data path mac API
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmac_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;
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_API_VERSION,
cmd_flags,
0);
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
return 0;
}
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