command.c (75bf465f0bc33e9b776a46d6a1b9b990f5fb7c37) command.c (b7df87cfe3d13596820afdda73338d44172a643e)
1// SPDX-License-Identifier: GPL-2.0-or-later
2
3/*
4 * IBM ASM Service Processor Device Driver
5 *
6 * Copyright (C) IBM Corporation, 2004
7 *
8 * Author: Max Asböck <amax@us.ibm.com>

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89 if (ibmasm_send_i2o_message(sp)) {
90 sp->current_command->status = IBMASM_CMD_FAILED;
91 wake_up(&sp->current_command->wait);
92 command_put(sp->current_command);
93 exec_next_command(sp);
94 }
95}
96
1// SPDX-License-Identifier: GPL-2.0-or-later
2
3/*
4 * IBM ASM Service Processor Device Driver
5 *
6 * Copyright (C) IBM Corporation, 2004
7 *
8 * Author: Max Asböck <amax@us.ibm.com>

--- 80 unchanged lines hidden (view full) ---

89 if (ibmasm_send_i2o_message(sp)) {
90 sp->current_command->status = IBMASM_CMD_FAILED;
91 wake_up(&sp->current_command->wait);
92 command_put(sp->current_command);
93 exec_next_command(sp);
94 }
95}
96
97/**
97/*
98 * exec_command
99 * send a command to a service processor
100 * Commands are executed sequentially. One command (sp->current_command)
101 * is sent to the service processor. Once the interrupt handler gets a
102 * message of type command_response, the message is copied into
103 * the current commands buffer,
104 */
105void ibmasm_exec_command(struct service_processor *sp, struct command *cmd)

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135 command_get(sp->current_command);
136 spin_unlock_irqrestore(&sp->lock, flags);
137 do_exec_command(sp);
138 } else {
139 spin_unlock_irqrestore(&sp->lock, flags);
140 }
141}
142
98 * exec_command
99 * send a command to a service processor
100 * Commands are executed sequentially. One command (sp->current_command)
101 * is sent to the service processor. Once the interrupt handler gets a
102 * message of type command_response, the message is copied into
103 * the current commands buffer,
104 */
105void ibmasm_exec_command(struct service_processor *sp, struct command *cmd)

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135 command_get(sp->current_command);
136 spin_unlock_irqrestore(&sp->lock, flags);
137 do_exec_command(sp);
138 } else {
139 spin_unlock_irqrestore(&sp->lock, flags);
140 }
141}
142
143/**
143/*
144 * Sleep until a command has failed or a response has been received
145 * and the command status been updated by the interrupt handler.
146 * (see receive_response).
147 */
148void ibmasm_wait_for_response(struct command *cmd, int timeout)
149{
150 wait_event_interruptible_timeout(cmd->wait,
151 cmd->status == IBMASM_CMD_COMPLETE ||
152 cmd->status == IBMASM_CMD_FAILED,
153 timeout * HZ);
154}
155
144 * Sleep until a command has failed or a response has been received
145 * and the command status been updated by the interrupt handler.
146 * (see receive_response).
147 */
148void ibmasm_wait_for_response(struct command *cmd, int timeout)
149{
150 wait_event_interruptible_timeout(cmd->wait,
151 cmd->status == IBMASM_CMD_COMPLETE ||
152 cmd->status == IBMASM_CMD_FAILED,
153 timeout * HZ);
154}
155
156/**
156/*
157 * receive_command_response
158 * called by the interrupt handler when a dot command of type command_response
159 * was received.
160 */
161void ibmasm_receive_command_response(struct service_processor *sp, void *response, size_t size)
162{
163 struct command *cmd = sp->current_command;
164
165 if (!sp->current_command)
166 return;
167
168 memcpy_fromio(cmd->buffer, response, min(size, cmd->buffer_size));
169 cmd->status = IBMASM_CMD_COMPLETE;
170 wake_up(&sp->current_command->wait);
171 command_put(sp->current_command);
172 exec_next_command(sp);
173}
157 * receive_command_response
158 * called by the interrupt handler when a dot command of type command_response
159 * was received.
160 */
161void ibmasm_receive_command_response(struct service_processor *sp, void *response, size_t size)
162{
163 struct command *cmd = sp->current_command;
164
165 if (!sp->current_command)
166 return;
167
168 memcpy_fromio(cmd->buffer, response, min(size, cmd->buffer_size));
169 cmd->status = IBMASM_CMD_COMPLETE;
170 wake_up(&sp->current_command->wait);
171 command_put(sp->current_command);
172 exec_next_command(sp);
173}