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편집 파일: stratix10-svc-client.h

/* 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" /* * 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 /* * 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 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 */ enum stratix10_svc_command_code { COMMAND_NOOP = 0, COMMAND_RECONFIG, COMMAND_RECONFIG_DATA_SUBMIT, COMMAND_RECONFIG_DATA_CLAIM, COMMAND_RECONFIG_STATUS, COMMAND_RSU_STATUS, COMMAND_RSU_UPDATE, COMMAND_RSU_NOTIFY, COMMAND_RSU_RETRY, COMMAND_RSU_MAX_RETRY, COMMAND_RSU_DCMF_VERSION, }; /** * struct stratix10_svc_client_msg - message sent by client to service * @payload: starting address of data need be processed * @payload_length: 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; 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