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2024-02-19 151fecfb72a0d602dfe79790602ef64b4e241574 
 kernel/include/uapi/linux/mei.h
....@@ -1,70 +1,9 @@
11 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
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-/******************************************************************************
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+/*
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+ * Copyright(c) 2003-2015 Intel Corporation. All rights reserved.
34  * Intel Management Engine Interface (Intel MEI) Linux driver
45  * Intel MEI Interface Header
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- *
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- * This file is provided under a dual BSD/GPLv2 license.  When using or
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- * redistributing this file, you may do so under either license.
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- *
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- * GPL LICENSE SUMMARY
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- *
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- * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of version 2 of the GNU General Public License as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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- * General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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- * USA
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- *
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- * The full GNU General Public License is included in this distribution
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- * in the file called LICENSE.GPL.
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- *
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- * Contact Information:
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- *	Intel Corporation.
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- *	linux-mei@linux.intel.com
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- *	http://www.intel.com
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- *
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- * BSD LICENSE
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- *
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- * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
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- * All rights reserved.
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- *
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- * Redistribution and use in source and binary forms, with or without
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- * modification, are permitted provided that the following conditions
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- * are met:
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- *
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- *  * Redistributions of source code must retain the above copyright
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- *    notice, this list of conditions and the following disclaimer.
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- *  * Redistributions in binary form must reproduce the above copyright
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- *    notice, this list of conditions and the following disclaimer in
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- *    the documentation and/or other materials provided with the
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- *    distribution.
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- *  * Neither the name Intel Corporation nor the names of its
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- *    contributors may be used to endorse or promote products derived
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- *    from this software without specific prior written permission.
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- *
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- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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- *
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- *****************************************************************************/
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-
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+ */
687 #ifndef _LINUX_MEI_H
698 #define _LINUX_MEI_H
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....@@ -127,4 +66,53 @@
12766  */
12867 #define IOCTL_MEI_NOTIFY_GET _IOR('H', 0x03, __u32)
12968 
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+/**
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+ * struct mei_connect_client_vtag - mei client information struct with vtag
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+ *
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+ * @in_client_uuid: UUID of client to connect
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+ * @vtag: virtual tag
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+ * @reserved: reserved for future use
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+ */
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+struct mei_connect_client_vtag {
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+	uuid_le in_client_uuid;
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+	__u8 vtag;
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+	__u8 reserved[3];
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+};
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+
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+/**
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+ * struct mei_connect_client_data_vtag - IOCTL connect data union
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+ *
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+ * @connect: input connect data
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+ * @out_client_properties: output client data
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+ */
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+struct mei_connect_client_data_vtag {
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+	union {
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+		struct mei_connect_client_vtag connect;
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+		struct mei_client out_client_properties;
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+	};
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+};
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+
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+/**
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+ * DOC:
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+ * This IOCTL is used to associate the current file descriptor with a
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+ * FW Client (given by UUID), and virtual tag (vtag).
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+ * The IOCTL opens a communication channel between a host client and
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+ * a FW client on a tagged channel. From this point on, every read
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+ * and write will communicate with the associated FW client with
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+ * on the tagged channel.
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+ * Upone close() the communication is terminated.
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+ *
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+ * The IOCTL argument is a struct with a union that contains
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+ * the input parameter and the output parameter for this IOCTL.
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+ *
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+ * The input parameter is UUID of the FW Client, a vtag [0,255]
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+ * The output parameter is the properties of the FW client
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+ * (FW protocool version and max message size).
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+ *
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+ * Clients that do not support tagged connection
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+ * will respond with -EOPNOTSUPP.
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+ */
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+#define IOCTL_MEI_CONNECT_CLIENT_VTAG \
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+	_IOWR('H', 0x04, struct mei_connect_client_data_vtag)
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+
130118 #endif /* _LINUX_MEI_H  */