284 lines
8.7 KiB
C
284 lines
8.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) 2017-2018, Intel Corporation
|
|
*/
|
|
|
|
#ifndef __STRATIX10_SVC_CLIENT_H
|
|
#define __STRATIX10_SVC_CLIENT_H
|
|
|
|
/*
|
|
* Service layer driver supports client names
|
|
*
|
|
* fpga: for FPGA configuration
|
|
* rsu: for remote status update
|
|
*/
|
|
#define SVC_CLIENT_FPGA "fpga"
|
|
#define SVC_CLIENT_RSU "rsu"
|
|
#define SVC_CLIENT_FCS "fcs"
|
|
|
|
/*
|
|
* Status of the sent command, in bit number
|
|
*
|
|
* SVC_STATUS_OK:
|
|
* Secure firmware accepts the request issued by one of service clients.
|
|
*
|
|
* SVC_STATUS_BUFFER_SUBMITTED:
|
|
* Service client successfully submits data buffer to secure firmware.
|
|
*
|
|
* SVC_STATUS_BUFFER_DONE:
|
|
* Secure firmware completes data process, ready to accept the
|
|
* next WRITE transaction.
|
|
*
|
|
* SVC_STATUS_COMPLETED:
|
|
* Secure firmware completes service request successfully. In case of
|
|
* FPGA configuration, FPGA should be in user mode.
|
|
*
|
|
* SVC_COMMAND_STATUS_BUSY:
|
|
* Service request is still in process.
|
|
*
|
|
* SVC_COMMAND_STATUS_ERROR:
|
|
* Error encountered during the process of the service request.
|
|
*
|
|
* SVC_STATUS_NO_SUPPORT:
|
|
* Secure firmware doesn't support requested features such as RSU retry
|
|
* or RSU notify.
|
|
*/
|
|
#define SVC_STATUS_OK 0
|
|
#define SVC_STATUS_BUFFER_SUBMITTED 1
|
|
#define SVC_STATUS_BUFFER_DONE 2
|
|
#define SVC_STATUS_COMPLETED 3
|
|
#define SVC_STATUS_BUSY 4
|
|
#define SVC_STATUS_ERROR 5
|
|
#define SVC_STATUS_NO_SUPPORT 6
|
|
#define SVC_STATUS_INVALID_PARAM 7
|
|
|
|
/*
|
|
* Flag bit for COMMAND_RECONFIG
|
|
*
|
|
* COMMAND_RECONFIG_FLAG_PARTIAL:
|
|
* Set to FPGA configuration type (full or partial).
|
|
*/
|
|
#define COMMAND_RECONFIG_FLAG_PARTIAL 0
|
|
|
|
/*
|
|
* Timeout settings for service clients:
|
|
* timeout value used in Stratix10 FPGA manager driver.
|
|
* timeout value used in RSU driver
|
|
*/
|
|
#define SVC_RECONFIG_REQUEST_TIMEOUT_MS 300
|
|
#define SVC_RECONFIG_BUFFER_TIMEOUT_MS 720
|
|
#define SVC_RSU_REQUEST_TIMEOUT_MS 300
|
|
#define SVC_FCS_REQUEST_TIMEOUT_MS 2000
|
|
#define SVC_COMPLETED_TIMEOUT_MS 30000
|
|
|
|
struct stratix10_svc_chan;
|
|
|
|
/**
|
|
* enum stratix10_svc_command_code - supported service commands
|
|
*
|
|
* @COMMAND_NOOP: do 'dummy' request for integration/debug/trouble-shooting
|
|
*
|
|
* @COMMAND_RECONFIG: ask for FPGA configuration preparation, return status
|
|
* is SVC_STATUS_OK
|
|
*
|
|
* @COMMAND_RECONFIG_DATA_SUBMIT: submit buffer(s) of bit-stream data for the
|
|
* FPGA configuration, return status is SVC_STATUS_SUBMITTED or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_RECONFIG_DATA_CLAIM: check the status of the configuration, return
|
|
* status is SVC_STATUS_COMPLETED, or SVC_STATUS_BUSY, or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_RECONFIG_STATUS: check the status of the configuration, return
|
|
* status is SVC_STATUS_COMPLETED, or SVC_STATUS_BUSY, or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_RSU_STATUS: request remote system update boot log, return status
|
|
* is log data or SVC_STATUS_RSU_ERROR
|
|
*
|
|
* @COMMAND_RSU_UPDATE: set the offset of the bitstream to boot after reboot,
|
|
* return status is SVC_STATUS_OK or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_RSU_NOTIFY: report the status of hard processor system
|
|
* software to firmware, return status is SVC_STATUS_OK or
|
|
* SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_RSU_RETRY: query firmware for the current image's retry counter,
|
|
* return status is SVC_STATUS_OK or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_RSU_MAX_RETRY: query firmware for the max retry value,
|
|
* return status is SVC_STATUS_OK or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_RSU_DCMF_VERSION: query firmware for the DCMF version, return status
|
|
* is SVC_STATUS_OK or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_POLL_SERVICE_STATUS: poll if the service request is complete,
|
|
* return statis is SVC_STATUS_OK, SVC_STATUS_ERROR or SVC_STATUS_BUSY
|
|
*
|
|
* @COMMAND_FIRMWARE_VERSION: query running firmware version, return status
|
|
* is SVC_STATUS_OK or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_SMC_SVC_VERSION: Non-mailbox SMC SVC API Version,
|
|
* return status is SVC_STATUS_OK
|
|
*
|
|
* @COMMAND_RSU_DCMF_STATUS: query firmware for the DCMF status
|
|
* return status is SVC_STATUS_OK or SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_FCS_REQUEST_SERVICE: request validation of image from firmware,
|
|
* return status is SVC_STATUS_OK, SVC_STATUS_INVALID_PARAM
|
|
*
|
|
* @COMMAND_FCS_SEND_CERTIFICATE: send a certificate, return status is
|
|
* SVC_STATUS_OK, SVC_STATUS_INVALID_PARAM, SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_FCS_GET_PROVISION_DATA: read the provisioning data, return status is
|
|
* SVC_STATUS_OK, SVC_STATUS_INVALID_PARAM, SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_FCS_DATA_ENCRYPTION: encrypt the data, return status is
|
|
* SVC_STATUS_OK, SVC_STATUS_INVALID_PARAM, SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_FCS_DATA_DECRYPTION: decrypt the data, return status is
|
|
* SVC_STATUS_OK, SVC_STATUS_INVALID_PARAM, SVC_STATUS_ERROR
|
|
*
|
|
* @COMMAND_FCS_RANDOM_NUMBER_GEN: generate a random number, return status
|
|
* is SVC_STATUS_OK, SVC_STATUS_ERROR
|
|
*/
|
|
enum stratix10_svc_command_code {
|
|
/* for FPGA */
|
|
COMMAND_NOOP = 0,
|
|
COMMAND_RECONFIG,
|
|
COMMAND_RECONFIG_DATA_SUBMIT,
|
|
COMMAND_RECONFIG_DATA_CLAIM,
|
|
COMMAND_RECONFIG_STATUS,
|
|
/* for RSU */
|
|
COMMAND_RSU_STATUS = 10,
|
|
COMMAND_RSU_UPDATE,
|
|
COMMAND_RSU_NOTIFY,
|
|
COMMAND_RSU_RETRY,
|
|
COMMAND_RSU_MAX_RETRY,
|
|
COMMAND_RSU_DCMF_VERSION,
|
|
COMMAND_RSU_DCMF_STATUS,
|
|
COMMAND_FIRMWARE_VERSION,
|
|
/* for FCS */
|
|
COMMAND_FCS_REQUEST_SERVICE = 20,
|
|
COMMAND_FCS_SEND_CERTIFICATE,
|
|
COMMAND_FCS_GET_PROVISION_DATA,
|
|
COMMAND_FCS_DATA_ENCRYPTION,
|
|
COMMAND_FCS_DATA_DECRYPTION,
|
|
COMMAND_FCS_RANDOM_NUMBER_GEN,
|
|
/* for general status poll */
|
|
COMMAND_POLL_SERVICE_STATUS = 40,
|
|
/* Non-mailbox SMC Call */
|
|
COMMAND_SMC_SVC_VERSION = 200,
|
|
};
|
|
|
|
/**
|
|
* struct stratix10_svc_client_msg - message sent by client to service
|
|
* @payload: starting address of data need be processed
|
|
* @payload_length: to be processed data size in bytes
|
|
* @payload_output: starting address of processed data
|
|
* @payload_length_output: processed data size in bytes
|
|
* @command: service command
|
|
* @arg: args to be passed via registers and not physically mapped buffers
|
|
*/
|
|
struct stratix10_svc_client_msg {
|
|
void *payload;
|
|
size_t payload_length;
|
|
void *payload_output;
|
|
size_t payload_length_output;
|
|
enum stratix10_svc_command_code command;
|
|
u64 arg[3];
|
|
};
|
|
|
|
/**
|
|
* struct stratix10_svc_command_config_type - config type
|
|
* @flags: flag bit for the type of FPGA configuration
|
|
*/
|
|
struct stratix10_svc_command_config_type {
|
|
u32 flags;
|
|
};
|
|
|
|
/**
|
|
* struct stratix10_svc_cb_data - callback data structure from service layer
|
|
* @status: the status of sent command
|
|
* @kaddr1: address of 1st completed data block
|
|
* @kaddr2: address of 2nd completed data block
|
|
* @kaddr3: address of 3rd completed data block
|
|
*/
|
|
struct stratix10_svc_cb_data {
|
|
u32 status;
|
|
void *kaddr1;
|
|
void *kaddr2;
|
|
void *kaddr3;
|
|
};
|
|
|
|
/**
|
|
* struct stratix10_svc_client - service client structure
|
|
* @dev: the client device
|
|
* @receive_cb: callback to provide service client the received data
|
|
* @priv: client private data
|
|
*/
|
|
struct stratix10_svc_client {
|
|
struct device *dev;
|
|
void (*receive_cb)(struct stratix10_svc_client *client,
|
|
struct stratix10_svc_cb_data *cb_data);
|
|
void *priv;
|
|
};
|
|
|
|
/**
|
|
* stratix10_svc_request_channel_byname() - request service channel
|
|
* @client: identity of the client requesting the channel
|
|
* @name: supporting client name defined above
|
|
*
|
|
* Return: a pointer to channel assigned to the client on success,
|
|
* or ERR_PTR() on error.
|
|
*/
|
|
struct stratix10_svc_chan
|
|
*stratix10_svc_request_channel_byname(struct stratix10_svc_client *client,
|
|
const char *name);
|
|
|
|
/**
|
|
* stratix10_svc_free_channel() - free service channel.
|
|
* @chan: service channel to be freed
|
|
*/
|
|
void stratix10_svc_free_channel(struct stratix10_svc_chan *chan);
|
|
|
|
/**
|
|
* stratix10_svc_allocate_memory() - allocate the momory
|
|
* @chan: service channel assigned to the client
|
|
* @size: number of bytes client requests
|
|
*
|
|
* Service layer allocates the requested number of bytes from the memory
|
|
* pool for the client.
|
|
*
|
|
* Return: the starting address of allocated memory on success, or
|
|
* ERR_PTR() on error.
|
|
*/
|
|
void *stratix10_svc_allocate_memory(struct stratix10_svc_chan *chan,
|
|
size_t size);
|
|
|
|
/**
|
|
* stratix10_svc_free_memory() - free allocated memory
|
|
* @chan: service channel assigned to the client
|
|
* @kaddr: starting address of memory to be free back to pool
|
|
*/
|
|
void stratix10_svc_free_memory(struct stratix10_svc_chan *chan, void *kaddr);
|
|
|
|
/**
|
|
* stratix10_svc_send() - send a message to the remote
|
|
* @chan: service channel assigned to the client
|
|
* @msg: message data to be sent, in the format of
|
|
* struct stratix10_svc_client_msg
|
|
*
|
|
* Return: 0 for success, -ENOMEM or -ENOBUFS on error.
|
|
*/
|
|
int stratix10_svc_send(struct stratix10_svc_chan *chan, void *msg);
|
|
|
|
/**
|
|
* stratix10_svc_done() - complete service request
|
|
* @chan: service channel assigned to the client
|
|
*
|
|
* This function is used by service client to inform service layer that
|
|
* client's service requests are completed, or there is an error in the
|
|
* request process.
|
|
*/
|
|
void stratix10_svc_done(struct stratix10_svc_chan *chan);
|
|
#endif
|
|
|