drivers/misc/mei/hw.h - kernel/msm-4.9 - Gitiles

 /*
  *
  * Intel Management Engine Interface (Intel MEI) Linux driver
  * Copyright (c) 2003-2012, Intel Corporation.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  *
  * This program is distributed in the hope it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
  *
  */

 #ifndef _MEI_HW_TYPES_H_
 #define _MEI_HW_TYPES_H_

 #include <linux/uuid.h>

 /*
  * Timeouts in Seconds
  */
 #define MEI_INTEROP_TIMEOUT         7  /* Timeout on ready message */
 #define MEI_CONNECT_TIMEOUT         3  /* HPS: at least 2 seconds */

 #define MEI_CL_CONNECT_TIMEOUT     15  /* HPS: Client Connect Timeout */
 #define MEI_CLIENTS_INIT_TIMEOUT   15  /* HPS: Clients Enumeration Timeout */

 #define MEI_IAMTHIF_STALL_TIMER    12  /* HPS */
 #define MEI_IAMTHIF_READ_TIMER     10  /* HPS */

 /*
  * Internal Clients Number
  */
 #define MEI_WD_HOST_CLIENT_ID          1
 #define MEI_IAMTHIF_HOST_CLIENT_ID     2

 /*
  * MEI device IDs
  */
 #define MEI_DEV_ID_82946GZ    0x2974  /* 82946GZ/GL */
 #define MEI_DEV_ID_82G35      0x2984  /* 82G35 Express */
 #define MEI_DEV_ID_82Q965     0x2994  /* 82Q963/Q965 */
 #define MEI_DEV_ID_82G965     0x29A4  /* 82P965/G965 */

 #define MEI_DEV_ID_82GM965    0x2A04  /* Mobile PM965/GM965 */
 #define MEI_DEV_ID_82GME965   0x2A14  /* Mobile GME965/GLE960 */

 #define MEI_DEV_ID_ICH9_82Q35 0x29B4  /* 82Q35 Express */
 #define MEI_DEV_ID_ICH9_82G33 0x29C4  /* 82G33/G31/P35/P31 Express */
 #define MEI_DEV_ID_ICH9_82Q33 0x29D4  /* 82Q33 Express */
 #define MEI_DEV_ID_ICH9_82X38 0x29E4  /* 82X38/X48 Express */
 #define MEI_DEV_ID_ICH9_3200  0x29F4  /* 3200/3210 Server */

 #define MEI_DEV_ID_ICH9_6     0x28B4  /* Bearlake */
 #define MEI_DEV_ID_ICH9_7     0x28C4  /* Bearlake */
 #define MEI_DEV_ID_ICH9_8     0x28D4  /* Bearlake */
 #define MEI_DEV_ID_ICH9_9     0x28E4  /* Bearlake */
 #define MEI_DEV_ID_ICH9_10    0x28F4  /* Bearlake */

 #define MEI_DEV_ID_ICH9M_1    0x2A44  /* Cantiga */
 #define MEI_DEV_ID_ICH9M_2    0x2A54  /* Cantiga */
 #define MEI_DEV_ID_ICH9M_3    0x2A64  /* Cantiga */
 #define MEI_DEV_ID_ICH9M_4    0x2A74  /* Cantiga */

 #define MEI_DEV_ID_ICH10_1    0x2E04  /* Eaglelake */
 #define MEI_DEV_ID_ICH10_2    0x2E14  /* Eaglelake */
 #define MEI_DEV_ID_ICH10_3    0x2E24  /* Eaglelake */
 #define MEI_DEV_ID_ICH10_4    0x2E34  /* Eaglelake */

 #define MEI_DEV_ID_IBXPK_1    0x3B64  /* Calpella */
 #define MEI_DEV_ID_IBXPK_2    0x3B65  /* Calpella */

 #define MEI_DEV_ID_CPT_1      0x1C3A  /* Couger Point */
 #define MEI_DEV_ID_PBG_1      0x1D3A  /* C600/X79 Patsburg */

 #define MEI_DEV_ID_PPT_1      0x1E3A  /* Panther Point */
 #define MEI_DEV_ID_PPT_2      0x1CBA  /* Panther Point */
 #define MEI_DEV_ID_PPT_3      0x1DBA  /* Panther Point */

 #define MEI_DEV_ID_LPT        0x8C3A  /* Lynx Point */
 #define MEI_DEV_ID_LPT_LP     0x9C3A  /* Lynx Point LP */
 /*
  * MEI HW Section
  */

 /* MEI registers */
 /* H_CB_WW - Host Circular Buffer (CB) Write Window register */
 #define H_CB_WW    0
 /* H_CSR - Host Control Status register */
 #define H_CSR      4
 /* ME_CB_RW - ME Circular Buffer Read Window register (read only) */
 #define ME_CB_RW   8
 /* ME_CSR_HA - ME Control Status Host Access register (read only) */
 #define ME_CSR_HA  0xC


 /* register bits of H_CSR (Host Control Status register) */
 /* Host Circular Buffer Depth - maximum number of 32-bit entries in CB */
 #define H_CBD             0xFF000000
 /* Host Circular Buffer Write Pointer */
 #define H_CBWP            0x00FF0000
 /* Host Circular Buffer Read Pointer */
 #define H_CBRP            0x0000FF00
 /* Host Reset */
 #define H_RST             0x00000010
 /* Host Ready */
 #define H_RDY             0x00000008
 /* Host Interrupt Generate */
 #define H_IG              0x00000004
 /* Host Interrupt Status */
 #define H_IS              0x00000002
 /* Host Interrupt Enable */
 #define H_IE              0x00000001


 /* register bits of ME_CSR_HA (ME Control Status Host Access register) */
 /* ME CB (Circular Buffer) Depth HRA (Host Read Access) - host read only
 access to ME_CBD */
 #define ME_CBD_HRA        0xFF000000
 /* ME CB Write Pointer HRA - host read only access to ME_CBWP */
 #define ME_CBWP_HRA       0x00FF0000
 /* ME CB Read Pointer HRA - host read only access to ME_CBRP */
 #define ME_CBRP_HRA       0x0000FF00
 /* ME Reset HRA - host read only access to ME_RST */
 #define ME_RST_HRA        0x00000010
 /* ME Ready HRA - host read only access to ME_RDY */
 #define ME_RDY_HRA        0x00000008
 /* ME Interrupt Generate HRA - host read only access to ME_IG */
 #define ME_IG_HRA         0x00000004
 /* ME Interrupt Status HRA - host read only access to ME_IS */
 #define ME_IS_HRA         0x00000002
 /* ME Interrupt Enable HRA - host read only access to ME_IE */
 #define ME_IE_HRA         0x00000001

 /*
  * MEI Version
  */
 #define HBM_MINOR_VERSION                   0
 #define HBM_MAJOR_VERSION                   1
 #define HBM_TIMEOUT                         1	/* 1 second */

 /* Host bus message command opcode */
 #define MEI_HBM_CMD_OP_MSK                  0x7f
 /* Host bus message command RESPONSE */
 #define MEI_HBM_CMD_RES_MSK                 0x80

 /*
  * MEI Bus Message Command IDs
  */
 #define HOST_START_REQ_CMD                  0x01
 #define HOST_START_RES_CMD                  0x81

 #define HOST_STOP_REQ_CMD                   0x02
 #define HOST_STOP_RES_CMD                   0x82

 #define ME_STOP_REQ_CMD                     0x03

 #define HOST_ENUM_REQ_CMD                   0x04
 #define HOST_ENUM_RES_CMD                   0x84

 #define HOST_CLIENT_PROPERTIES_REQ_CMD      0x05
 #define HOST_CLIENT_PROPERTIES_RES_CMD      0x85

 #define CLIENT_CONNECT_REQ_CMD              0x06
 #define CLIENT_CONNECT_RES_CMD              0x86

 #define CLIENT_DISCONNECT_REQ_CMD           0x07
 #define CLIENT_DISCONNECT_RES_CMD           0x87

 #define MEI_FLOW_CONTROL_CMD                0x08

 /*
  * MEI Stop Reason
  * used by hbm_host_stop_request.reason
  */
 enum mei_stop_reason_types {
 	DRIVER_STOP_REQUEST = 0x00,
 	DEVICE_D1_ENTRY = 0x01,
 	DEVICE_D2_ENTRY = 0x02,
 	DEVICE_D3_ENTRY = 0x03,
 	SYSTEM_S1_ENTRY = 0x04,
 	SYSTEM_S2_ENTRY = 0x05,
 	SYSTEM_S3_ENTRY = 0x06,
 	SYSTEM_S4_ENTRY = 0x07,
 	SYSTEM_S5_ENTRY = 0x08
 };

 /*
  * Client Connect Status
  * used by hbm_client_connect_response.status
  */
 enum client_connect_status_types {
 	CCS_SUCCESS = 0x00,
 	CCS_NOT_FOUND = 0x01,
 	CCS_ALREADY_STARTED = 0x02,
 	CCS_OUT_OF_RESOURCES = 0x03,
 	CCS_MESSAGE_SMALL = 0x04
 };

 /*
  * Client Disconnect Status
  */
 enum client_disconnect_status_types {
 	CDS_SUCCESS = 0x00
 };

 /*
  *  MEI BUS Interface Section
  */
 struct mei_msg_hdr {
 	u32 me_addr:8;
 	u32 host_addr:8;
 	u32 length:9;
 	u32 reserved:6;
 	u32 msg_complete:1;
 } __packed;


 struct mei_bus_message {
 	u8 hbm_cmd;
 	u8 data[0];
 } __packed;

 struct hbm_version {
 	u8 minor_version;
 	u8 major_version;
 } __packed;

 struct hbm_host_version_request {
 	u8 hbm_cmd;
 	u8 reserved;
 	struct hbm_version host_version;
 } __packed;

 struct hbm_host_version_response {
 	u8 hbm_cmd;
 	u8 host_version_supported;
 	struct hbm_version me_max_version;
 } __packed;

 struct hbm_host_stop_request {
 	u8 hbm_cmd;
 	u8 reason;
 	u8 reserved[2];
 } __packed;

 struct hbm_host_stop_response {
 	u8 hbm_cmd;
 	u8 reserved[3];
 } __packed;

 struct hbm_me_stop_request {
 	u8 hbm_cmd;
 	u8 reason;
 	u8 reserved[2];
 } __packed;

 struct hbm_host_enum_request {
 	u8 hbm_cmd;
 	u8 reserved[3];
 } __packed;

 struct hbm_host_enum_response {
 	u8 hbm_cmd;
 	u8 reserved[3];
 	u8 valid_addresses[32];
 } __packed;

 struct mei_client_properties {
 	uuid_le protocol_name;
 	u8 protocol_version;
 	u8 max_number_of_connections;
 	u8 fixed_address;
 	u8 single_recv_buf;
 	u32 max_msg_length;
 } __packed;

 struct hbm_props_request {
 	u8 hbm_cmd;
 	u8 address;
 	u8 reserved[2];
 } __packed;


 struct hbm_props_response {
 	u8 hbm_cmd;
 	u8 address;
 	u8 status;
 	u8 reserved[1];
 	struct mei_client_properties client_properties;
 } __packed;

 /**
  * struct hbm_client_connect_request - connect/disconnect request
  *
  * @hbm_cmd - bus message command header
  * @me_addr - address of the client in ME
  * @host_addr - address of the client in the driver
  * @reserved
  */
 struct hbm_client_connect_request {
 	u8 hbm_cmd;
 	u8 me_addr;
 	u8 host_addr;
 	u8 reserved;
 } __packed;

 /**
  * struct hbm_client_connect_response - connect/disconnect response
  *
  * @hbm_cmd - bus message command header
  * @me_addr - address of the client in ME
  * @host_addr - address of the client in the driver
  * @status - status of the request
  */
 struct hbm_client_connect_response {
 	u8 hbm_cmd;
 	u8 me_addr;
 	u8 host_addr;
 	u8 status;
 } __packed;


 #define MEI_FC_MESSAGE_RESERVED_LENGTH           5

 struct hbm_flow_control {
 	u8 hbm_cmd;
 	u8 me_addr;
 	u8 host_addr;
 	u8 reserved[MEI_FC_MESSAGE_RESERVED_LENGTH];
 } __packed;

 struct mei_me_client {
 	struct mei_client_properties props;
 	u8 client_id;
 	u8 mei_flow_ctrl_creds;
 } __packed;


 #endif
	/*
	*
	* Intel Management Engine Interface (Intel MEI) Linux driver
	* Copyright (c) 2003-2012, Intel Corporation.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	* more details.
	*
	*/

	#ifndef _MEI_HW_TYPES_H_
	#define _MEI_HW_TYPES_H_

	#include <linux/uuid.h>

	/*
	* Timeouts in Seconds
	*/
	#define MEI_INTEROP_TIMEOUT 7 /* Timeout on ready message */
	#define MEI_CONNECT_TIMEOUT 3 /* HPS: at least 2 seconds */

	#define MEI_CL_CONNECT_TIMEOUT 15 /* HPS: Client Connect Timeout */
	#define MEI_CLIENTS_INIT_TIMEOUT 15 /* HPS: Clients Enumeration Timeout */

	#define MEI_IAMTHIF_STALL_TIMER 12 /* HPS */
	#define MEI_IAMTHIF_READ_TIMER 10 /* HPS */

	/*
	* Internal Clients Number
	*/
	#define MEI_WD_HOST_CLIENT_ID 1
	#define MEI_IAMTHIF_HOST_CLIENT_ID 2

	/*
	* MEI device IDs
	*/
	#define MEI_DEV_ID_82946GZ 0x2974 /* 82946GZ/GL */
	#define MEI_DEV_ID_82G35 0x2984 /* 82G35 Express */
	#define MEI_DEV_ID_82Q965 0x2994 /* 82Q963/Q965 */
	#define MEI_DEV_ID_82G965 0x29A4 /* 82P965/G965 */

	#define MEI_DEV_ID_82GM965 0x2A04 /* Mobile PM965/GM965 */
	#define MEI_DEV_ID_82GME965 0x2A14 /* Mobile GME965/GLE960 */

	#define MEI_DEV_ID_ICH9_82Q35 0x29B4 /* 82Q35 Express */
	#define MEI_DEV_ID_ICH9_82G33 0x29C4 /* 82G33/G31/P35/P31 Express */
	#define MEI_DEV_ID_ICH9_82Q33 0x29D4 /* 82Q33 Express */
	#define MEI_DEV_ID_ICH9_82X38 0x29E4 /* 82X38/X48 Express */
	#define MEI_DEV_ID_ICH9_3200 0x29F4 /* 3200/3210 Server */

	#define MEI_DEV_ID_ICH9_6 0x28B4 /* Bearlake */
	#define MEI_DEV_ID_ICH9_7 0x28C4 /* Bearlake */
	#define MEI_DEV_ID_ICH9_8 0x28D4 /* Bearlake */
	#define MEI_DEV_ID_ICH9_9 0x28E4 /* Bearlake */
	#define MEI_DEV_ID_ICH9_10 0x28F4 /* Bearlake */

	#define MEI_DEV_ID_ICH9M_1 0x2A44 /* Cantiga */
	#define MEI_DEV_ID_ICH9M_2 0x2A54 /* Cantiga */
	#define MEI_DEV_ID_ICH9M_3 0x2A64 /* Cantiga */
	#define MEI_DEV_ID_ICH9M_4 0x2A74 /* Cantiga */

	#define MEI_DEV_ID_ICH10_1 0x2E04 /* Eaglelake */
	#define MEI_DEV_ID_ICH10_2 0x2E14 /* Eaglelake */
	#define MEI_DEV_ID_ICH10_3 0x2E24 /* Eaglelake */
	#define MEI_DEV_ID_ICH10_4 0x2E34 /* Eaglelake */

	#define MEI_DEV_ID_IBXPK_1 0x3B64 /* Calpella */
	#define MEI_DEV_ID_IBXPK_2 0x3B65 /* Calpella */

	#define MEI_DEV_ID_CPT_1 0x1C3A /* Couger Point */
	#define MEI_DEV_ID_PBG_1 0x1D3A /* C600/X79 Patsburg */

	#define MEI_DEV_ID_PPT_1 0x1E3A /* Panther Point */
	#define MEI_DEV_ID_PPT_2 0x1CBA /* Panther Point */
	#define MEI_DEV_ID_PPT_3 0x1DBA /* Panther Point */

	#define MEI_DEV_ID_LPT 0x8C3A /* Lynx Point */
	#define MEI_DEV_ID_LPT_LP 0x9C3A /* Lynx Point LP */
	/*
	* MEI HW Section
	*/

	/* MEI registers */
	/* H_CB_WW - Host Circular Buffer (CB) Write Window register */
	#define H_CB_WW 0
	/* H_CSR - Host Control Status register */
	#define H_CSR 4
	/* ME_CB_RW - ME Circular Buffer Read Window register (read only) */
	#define ME_CB_RW 8
	/* ME_CSR_HA - ME Control Status Host Access register (read only) */
	#define ME_CSR_HA 0xC


	/* register bits of H_CSR (Host Control Status register) */
	/* Host Circular Buffer Depth - maximum number of 32-bit entries in CB */
	#define H_CBD 0xFF000000
	/* Host Circular Buffer Write Pointer */
	#define H_CBWP 0x00FF0000
	/* Host Circular Buffer Read Pointer */
	#define H_CBRP 0x0000FF00
	/* Host Reset */
	#define H_RST 0x00000010
	/* Host Ready */
	#define H_RDY 0x00000008
	/* Host Interrupt Generate */
	#define H_IG 0x00000004
	/* Host Interrupt Status */
	#define H_IS 0x00000002
	/* Host Interrupt Enable */
	#define H_IE 0x00000001


	/* register bits of ME_CSR_HA (ME Control Status Host Access register) */
	/* ME CB (Circular Buffer) Depth HRA (Host Read Access) - host read only
	access to ME_CBD */
	#define ME_CBD_HRA 0xFF000000
	/* ME CB Write Pointer HRA - host read only access to ME_CBWP */
	#define ME_CBWP_HRA 0x00FF0000
	/* ME CB Read Pointer HRA - host read only access to ME_CBRP */
	#define ME_CBRP_HRA 0x0000FF00
	/* ME Reset HRA - host read only access to ME_RST */
	#define ME_RST_HRA 0x00000010
	/* ME Ready HRA - host read only access to ME_RDY */
	#define ME_RDY_HRA 0x00000008
	/* ME Interrupt Generate HRA - host read only access to ME_IG */
	#define ME_IG_HRA 0x00000004
	/* ME Interrupt Status HRA - host read only access to ME_IS */
	#define ME_IS_HRA 0x00000002
	/* ME Interrupt Enable HRA - host read only access to ME_IE */
	#define ME_IE_HRA 0x00000001

	/*
	* MEI Version
	*/
	#define HBM_MINOR_VERSION 0
	#define HBM_MAJOR_VERSION 1
	#define HBM_TIMEOUT 1 /* 1 second */

	/* Host bus message command opcode */
	#define MEI_HBM_CMD_OP_MSK 0x7f
	/* Host bus message command RESPONSE */
	#define MEI_HBM_CMD_RES_MSK 0x80

	/*
	* MEI Bus Message Command IDs
	*/
	#define HOST_START_REQ_CMD 0x01
	#define HOST_START_RES_CMD 0x81

	#define HOST_STOP_REQ_CMD 0x02
	#define HOST_STOP_RES_CMD 0x82

	#define ME_STOP_REQ_CMD 0x03

	#define HOST_ENUM_REQ_CMD 0x04
	#define HOST_ENUM_RES_CMD 0x84

	#define HOST_CLIENT_PROPERTIES_REQ_CMD 0x05
	#define HOST_CLIENT_PROPERTIES_RES_CMD 0x85

	#define CLIENT_CONNECT_REQ_CMD 0x06
	#define CLIENT_CONNECT_RES_CMD 0x86

	#define CLIENT_DISCONNECT_REQ_CMD 0x07
	#define CLIENT_DISCONNECT_RES_CMD 0x87

	#define MEI_FLOW_CONTROL_CMD 0x08

	/*
	* MEI Stop Reason
	* used by hbm_host_stop_request.reason
	*/
	enum mei_stop_reason_types {
	DRIVER_STOP_REQUEST = 0x00,
	DEVICE_D1_ENTRY = 0x01,
	DEVICE_D2_ENTRY = 0x02,
	DEVICE_D3_ENTRY = 0x03,
	SYSTEM_S1_ENTRY = 0x04,
	SYSTEM_S2_ENTRY = 0x05,
	SYSTEM_S3_ENTRY = 0x06,
	SYSTEM_S4_ENTRY = 0x07,
	SYSTEM_S5_ENTRY = 0x08
	};

	/*
	* Client Connect Status
	* used by hbm_client_connect_response.status
	*/
	enum client_connect_status_types {
	CCS_SUCCESS = 0x00,
	CCS_NOT_FOUND = 0x01,
	CCS_ALREADY_STARTED = 0x02,
	CCS_OUT_OF_RESOURCES = 0x03,
	CCS_MESSAGE_SMALL = 0x04
	};

	/*
	* Client Disconnect Status
	*/
	enum client_disconnect_status_types {
	CDS_SUCCESS = 0x00
	};

	/*
	* MEI BUS Interface Section
	*/
	struct mei_msg_hdr {
	u32 me_addr:8;
	u32 host_addr:8;
	u32 length:9;
	u32 reserved:6;
	u32 msg_complete:1;
	} __packed;


	struct mei_bus_message {
	u8 hbm_cmd;
	u8 data[0];
	} __packed;

	struct hbm_version {
	u8 minor_version;
	u8 major_version;
	} __packed;

	struct hbm_host_version_request {
	u8 hbm_cmd;
	u8 reserved;
	struct hbm_version host_version;
	} __packed;

	struct hbm_host_version_response {
	u8 hbm_cmd;
	u8 host_version_supported;
	struct hbm_version me_max_version;
	} __packed;

	struct hbm_host_stop_request {
	u8 hbm_cmd;
	u8 reason;
	u8 reserved[2];
	} __packed;

	struct hbm_host_stop_response {
	u8 hbm_cmd;
	u8 reserved[3];
	} __packed;

	struct hbm_me_stop_request {
	u8 hbm_cmd;
	u8 reason;
	u8 reserved[2];
	} __packed;

	struct hbm_host_enum_request {
	u8 hbm_cmd;
	u8 reserved[3];
	} __packed;

	struct hbm_host_enum_response {
	u8 hbm_cmd;
	u8 reserved[3];
	u8 valid_addresses[32];
	} __packed;

	struct mei_client_properties {
	uuid_le protocol_name;
	u8 protocol_version;
	u8 max_number_of_connections;
	u8 fixed_address;
	u8 single_recv_buf;
	u32 max_msg_length;
	} __packed;

	struct hbm_props_request {
	u8 hbm_cmd;
	u8 address;
	u8 reserved[2];
	} __packed;


	struct hbm_props_response {
	u8 hbm_cmd;
	u8 address;
	u8 status;
	u8 reserved[1];
	struct mei_client_properties client_properties;
	} __packed;

	/**
	* struct hbm_client_connect_request - connect/disconnect request
	*
	* @hbm_cmd - bus message command header
	* @me_addr - address of the client in ME
	* @host_addr - address of the client in the driver
	* @reserved
	*/
	struct hbm_client_connect_request {
	u8 hbm_cmd;
	u8 me_addr;
	u8 host_addr;
	u8 reserved;
	} __packed;

	/**
	* struct hbm_client_connect_response - connect/disconnect response
	*
	* @hbm_cmd - bus message command header
	* @me_addr - address of the client in ME
	* @host_addr - address of the client in the driver
	* @status - status of the request
	*/
	struct hbm_client_connect_response {
	u8 hbm_cmd;
	u8 me_addr;
	u8 host_addr;
	u8 status;
	} __packed;


	#define MEI_FC_MESSAGE_RESERVED_LENGTH 5

	struct hbm_flow_control {
	u8 hbm_cmd;
	u8 me_addr;
	u8 host_addr;
	u8 reserved[MEI_FC_MESSAGE_RESERVED_LENGTH];
	} __packed;

	struct mei_me_client {
	struct mei_client_properties props;
	u8 client_id;
	u8 mei_flow_ctrl_creds;
	} __packed;


	#endif