1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2017-2018, Intel Corporation
6 #ifndef __STRATIX10_SVC_CLIENT_H
7 #define __STRATIX10_SVC_CLIENT_H
10 * Service layer driver supports client names
12 * fpga: for FPGA configuration
13 * rsu: for remote status update
15 #define SVC_CLIENT_FPGA "fpga"
16 #define SVC_CLIENT_RSU "rsu"
19 * Status of the sent command, in bit number
21 * SVC_COMMAND_STATUS_RECONFIG_REQUEST_OK:
22 * Secure firmware accepts the request of FPGA reconfiguration.
24 * SVC_STATUS_RECONFIG_BUFFER_SUBMITTED:
25 * Service client successfully submits FPGA configuration
26 * data buffer to secure firmware.
28 * SVC_COMMAND_STATUS_RECONFIG_BUFFER_DONE:
29 * Secure firmware completes data process, ready to accept the
30 * next WRITE transaction.
32 * SVC_COMMAND_STATUS_RECONFIG_COMPLETED:
33 * Secure firmware completes FPGA configuration successfully, FPGA should
36 * SVC_COMMAND_STATUS_RECONFIG_BUSY:
37 * FPGA configuration is still in process.
39 * SVC_COMMAND_STATUS_RECONFIG_ERROR:
40 * Error encountered during FPGA configuration.
43 * Secure firmware accepts the request of remote status update (RSU).
45 #define SVC_STATUS_RECONFIG_REQUEST_OK 0
46 #define SVC_STATUS_RECONFIG_BUFFER_SUBMITTED 1
47 #define SVC_STATUS_RECONFIG_BUFFER_DONE 2
48 #define SVC_STATUS_RECONFIG_COMPLETED 3
49 #define SVC_STATUS_RECONFIG_BUSY 4
50 #define SVC_STATUS_RECONFIG_ERROR 5
51 #define SVC_STATUS_RSU_OK 6
52 #define SVC_STATUS_RSU_ERROR 7
54 * Flag bit for COMMAND_RECONFIG
56 * COMMAND_RECONFIG_FLAG_PARTIAL:
57 * Set to FPGA configuration type (full or partial), the default
60 #define COMMAND_RECONFIG_FLAG_PARTIAL 0
63 * Timeout settings for service clients:
64 * timeout value used in Stratix10 FPGA manager driver.
65 * timeout value used in RSU driver
67 #define SVC_RECONFIG_REQUEST_TIMEOUT_MS 100
68 #define SVC_RECONFIG_BUFFER_TIMEOUT_MS 240
69 #define SVC_RSU_REQUEST_TIMEOUT_MS 300
71 struct stratix10_svc_chan;
74 * enum stratix10_svc_command_code - supported service commands
76 * @COMMAND_NOOP: do 'dummy' request for integration/debug/trouble-shooting
78 * @COMMAND_RECONFIG: ask for FPGA configuration preparation, return status
79 * is SVC_STATUS_RECONFIG_REQUEST_OK
81 * @COMMAND_RECONFIG_DATA_SUBMIT: submit buffer(s) of bit-stream data for the
82 * FPGA configuration, return status is SVC_STATUS_RECONFIG_BUFFER_SUBMITTED,
83 * or SVC_STATUS_RECONFIG_ERROR
85 * @COMMAND_RECONFIG_DATA_CLAIM: check the status of the configuration, return
86 * status is SVC_STATUS_RECONFIG_COMPLETED, or SVC_STATUS_RECONFIG_BUSY, or
87 * SVC_STATUS_RECONFIG_ERROR
89 * @COMMAND_RECONFIG_STATUS: check the status of the configuration, return
90 * status is SVC_STATUS_RECONFIG_COMPLETED, or SVC_STATUS_RECONFIG_BUSY, or
91 * SVC_STATUS_RECONFIG_ERROR
93 * @COMMAND_RSU_STATUS: request remote system update boot log, return status
94 * is log data or SVC_STATUS_RSU_ERROR
96 * @COMMAND_RSU_UPDATE: set the offset of the bitstream to boot after reboot,
97 * return status is SVC_STATUS_RSU_OK or SVC_STATUS_RSU_ERROR
99 enum stratix10_svc_command_code {
102 COMMAND_RECONFIG_DATA_SUBMIT,
103 COMMAND_RECONFIG_DATA_CLAIM,
104 COMMAND_RECONFIG_STATUS,
110 * struct stratix10_svc_client_msg - message sent by client to service
111 * @payload: starting address of data need be processed
112 * @payload_length: data size in bytes
113 * @command: service command
114 * @arg: args to be passed via registers and not physically mapped buffers
116 struct stratix10_svc_client_msg {
118 size_t payload_length;
119 enum stratix10_svc_command_code command;
124 * struct stratix10_svc_command_config_type - config type
125 * @flags: flag bit for the type of FPGA configuration
127 struct stratix10_svc_command_config_type {
132 * struct stratix10_svc_cb_data - callback data structure from service layer
133 * @status: the status of sent command
134 * @kaddr1: address of 1st completed data block
135 * @kaddr2: address of 2nd completed data block
136 * @kaddr3: address of 3rd completed data block
138 struct stratix10_svc_cb_data {
146 * struct stratix10_svc_client - service client structure
147 * @dev: the client device
148 * @receive_cb: callback to provide service client the received data
149 * @priv: client private data
151 struct stratix10_svc_client {
153 void (*receive_cb)(struct stratix10_svc_client *client,
154 struct stratix10_svc_cb_data *cb_data);
159 * stratix10_svc_request_channel_byname() - request service channel
160 * @client: identity of the client requesting the channel
161 * @name: supporting client name defined above
163 * Return: a pointer to channel assigned to the client on success,
164 * or ERR_PTR() on error.
166 struct stratix10_svc_chan
167 *stratix10_svc_request_channel_byname(struct stratix10_svc_client *client,
171 * stratix10_svc_free_channel() - free service channel.
172 * @chan: service channel to be freed
174 void stratix10_svc_free_channel(struct stratix10_svc_chan *chan);
177 * stratix10_svc_allocate_memory() - allocate the momory
178 * @chan: service channel assigned to the client
179 * @size: number of bytes client requests
181 * Service layer allocates the requested number of bytes from the memory
182 * pool for the client.
184 * Return: the starting address of allocated memory on success, or
185 * ERR_PTR() on error.
187 void *stratix10_svc_allocate_memory(struct stratix10_svc_chan *chan,
191 * stratix10_svc_free_memory() - free allocated memory
192 * @chan: service channel assigned to the client
193 * @kaddr: starting address of memory to be free back to pool
195 void stratix10_svc_free_memory(struct stratix10_svc_chan *chan, void *kaddr);
198 * stratix10_svc_send() - send a message to the remote
199 * @chan: service channel assigned to the client
200 * @msg: message data to be sent, in the format of
201 * struct stratix10_svc_client_msg
203 * Return: 0 for success, -ENOMEM or -ENOBUFS on error.
205 int stratix10_svc_send(struct stratix10_svc_chan *chan, void *msg);
208 * intel_svc_done() - complete service request
209 * @chan: service channel assigned to the client
211 * This function is used by service client to inform service layer that
212 * client's service requests are completed, or there is an error in the
215 void stratix10_svc_done(struct stratix10_svc_chan *chan);