Quelle dpmac.c
Sprache: C
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/* Copyright 2013-2016 Freescale Semiconductor Inc.
* Copyright 2019 NXP
*/
#include <linux/fsl/mc.h>
#include "dpmac.h"
#include "dpmac-cmd.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 fsl_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 fsl_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_get_attributes - Retrieve DPMAC 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 DPMAC object
* @ attr : Returned object ' s attributes
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpmac_get_attributes(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token,
struct dpmac_attr *attr)
{
struct dpmac_rsp_get_attributes *rsp_params;
struct fsl_mc_command cmd = { 0 };
int err;
/* prepare command */
cmd.header = mc_encode_cmd_header(DPMAC_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 dpmac_rsp_get_attributes *)cmd.params;
attr->eth_if = rsp_params->eth_if;
attr->link_type = rsp_params->link_type;
attr->id = le16_to_cpu(rsp_params->id);
attr->max_rate = le32_to_cpu(rsp_params->max_rate);
return 0 ;
}
/**
* 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 fsl_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);
dpmac_set_field(cmd_params->state, STATE, link_state->up);
dpmac_set_field(cmd_params->state, 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
* @ id : The requested counter ID
* @ value : 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_id id, u64 *value)
{
struct dpmac_cmd_get_counter *dpmac_cmd;
struct dpmac_rsp_get_counter *dpmac_rsp;
struct fsl_mc_command cmd = { 0 };
int err = 0 ;
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_COUNTER,
cmd_flags,
token);
dpmac_cmd = (struct dpmac_cmd_get_counter *)cmd.params;
dpmac_cmd->id = id;
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
dpmac_rsp = (struct dpmac_rsp_get_counter *)cmd.params;
*value = 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 dpmac_rsp_get_api_version *rsp_params;
struct fsl_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;
rsp_params = (struct dpmac_rsp_get_api_version *)cmd.params;
*major_ver = le16_to_cpu(rsp_params->major);
*minor_ver = le16_to_cpu(rsp_params->minor);
return 0 ;
}
/**
* dpmac_set_protocol ( ) - Reconfigure the DPMAC protocol
* @ mc_io : Pointer to opaque I / O object
* @ cmd_flags : Command flags ; one or more of ' MC_CMD_FLAG_ '
* @ token : Token of DPMAC object
* @ protocol : New protocol for the DPMAC to be reconfigured in .
*
* Return : ' 0 ' on Success ; Error code otherwise .
*/
int dpmac_set_protocol(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
enum dpmac_eth_if protocol)
{
struct dpmac_cmd_set_protocol *cmd_params;
struct fsl_mc_command cmd = { 0 };
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_PROTOCOL,
cmd_flags, token);
cmd_params = (struct dpmac_cmd_set_protocol *)cmd.params;
cmd_params->eth_if = protocol;
return mc_send_command(mc_io, &cmd);
}
Messung V0.5 in Prozent C=96 H=93 G=94
¤ Dauer der Verarbeitung: 0.5 Sekunden
¤
*© Formatika GbR, Deutschland
2026-10-11
Neuigkeiten
Aktuelles
Motto des Tages
Open Source Software
Jenseits des Üblichen ....
Besucherstatistik
Statistik
#Sources=1127926
#Domains=2039723