drivers/scsi/isci/probe_roms.h - linux - Git at Google

 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
  *
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
  * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that 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.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  * The full GNU General Public License is included in this distribution
  * in the file called LICENSE.GPL.
  *
  * BSD LICENSE
  *
  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  *   * Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  *   * Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in
  *     the documentation and/or other materials provided with the
  *     distribution.
  *   * Neither the name of Intel Corporation nor the names of its
  *     contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef _ISCI_PROBE_ROMS_H_
 #define _ISCI_PROBE_ROMS_H_

 #ifdef __KERNEL__
 #include <linux/firmware.h>
 #include <linux/pci.h>
 #include <linux/efi.h>
 #include "isci.h"

 #define SCIC_SDS_PARM_NO_SPEED   0

 /* generation 1 (i.e. 1.5 Gb/s) */
 #define SCIC_SDS_PARM_GEN1_SPEED 1

 /* generation 2 (i.e. 3.0 Gb/s) */
 #define SCIC_SDS_PARM_GEN2_SPEED 2

 /* generation 3 (i.e. 6.0 Gb/s) */
 #define SCIC_SDS_PARM_GEN3_SPEED 3
 #define SCIC_SDS_PARM_MAX_SPEED SCIC_SDS_PARM_GEN3_SPEED

 /* parameters that can be set by module parameters */
 struct sci_user_parameters {
 	struct sci_phy_user_params {
 		/**
 		 * This field specifies the NOTIFY (ENABLE SPIN UP) primitive
 		 * insertion frequency for this phy index.
 		 */
 		u32 notify_enable_spin_up_insertion_frequency;

 		/**
 		 * This method specifies the number of transmitted DWORDs within which
 		 * to transmit a single ALIGN primitive.  This value applies regardless
 		 * of what type of device is attached or connection state.  A value of
 		 * 0 indicates that no ALIGN primitives will be inserted.
 		 */
 		u16 align_insertion_frequency;

 		/**
 		 * This method specifies the number of transmitted DWORDs within which
 		 * to transmit 2 ALIGN primitives.  This applies for SAS connections
 		 * only.  A minimum value of 3 is required for this field.
 		 */
 		u16 in_connection_align_insertion_frequency;

 		/**
 		 * This field indicates the maximum speed generation to be utilized
 		 * by phys in the supplied port.
 		 * - A value of 1 indicates generation 1 (i.e. 1.5 Gb/s).
 		 * - A value of 2 indicates generation 2 (i.e. 3.0 Gb/s).
 		 * - A value of 3 indicates generation 3 (i.e. 6.0 Gb/s).
 		 */
 		u8 max_speed_generation;

 	} phys[SCI_MAX_PHYS];

 	/**
 	 * This field specifies the maximum number of direct attached devices
 	 * that can have power supplied to them simultaneously.
 	 */
 	u8 max_concurr_spinup;

 	/**
 	 * This field specifies the number of seconds to allow a phy to consume
 	 * power before yielding to another phy.
 	 *
 	 */
 	u8 phy_spin_up_delay_interval;

 	/**
 	 * These timer values specifies how long a link will remain open with no
 	 * activity in increments of a microsecond, it can be in increments of
 	 * 100 microseconds if the upper most bit is set.
 	 *
 	 */
 	u16 stp_inactivity_timeout;
 	u16 ssp_inactivity_timeout;

 	/**
 	 * These timer values specifies how long a link will remain open in increments
 	 * of 100 microseconds.
 	 *
 	 */
 	u16 stp_max_occupancy_timeout;
 	u16 ssp_max_occupancy_timeout;

 	/**
 	 * This timer value specifies how long a link will remain open with no
 	 * outbound traffic in increments of a microsecond.
 	 *
 	 */
 	u8 no_outbound_task_timeout;

 };

 #define SCIC_SDS_PARM_PHY_MASK_MIN 0x0
 #define SCIC_SDS_PARM_PHY_MASK_MAX 0xF
 #define MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT 4

 struct sci_oem_params;
 int sci_oem_parameters_validate(struct sci_oem_params *oem, u8 version);

 struct isci_orom;
 struct isci_orom *isci_request_oprom(struct pci_dev *pdev);
 struct isci_orom *isci_request_firmware(struct pci_dev *pdev, const struct firmware *fw);
 struct isci_orom *isci_get_efi_var(struct pci_dev *pdev);

 struct isci_oem_hdr {
 	u8 sig[4];
 	u8 rev_major;
 	u8 rev_minor;
 	u16 len;
 	u8 checksum;
 	u8 reserved1;
 	u16 reserved2;
 } __attribute__ ((packed));

 #else
 #define SCI_MAX_PORTS 4
 #define SCI_MAX_PHYS 4
 #define SCI_MAX_CONTROLLERS 2
 #endif

 #define ISCI_FW_NAME		"isci/isci_firmware.bin"

 #define ROMSIGNATURE		0xaa55

 #define ISCI_OEM_SIG		"$OEM"
 #define ISCI_OEM_SIG_SIZE	4
 #define ISCI_ROM_SIG		"ISCUOEMB"
 #define ISCI_ROM_SIG_SIZE	8

 #define ISCI_EFI_VENDOR_GUID	\
 	EFI_GUID(0x193dfefa, 0xa445, 0x4302, 0x99, 0xd8, 0xef, 0x3a, 0xad, \
 			0x1a, 0x04, 0xc6)
 #define ISCI_EFI_VAR_NAME	"RstScuO"

 #define ISCI_ROM_VER_1_0	0x10
 #define ISCI_ROM_VER_1_1	0x11
 #define ISCI_ROM_VER_1_3	0x13
 #define ISCI_ROM_VER_LATEST	ISCI_ROM_VER_1_3

 /* Allowed PORT configuration modes APC Automatic PORT configuration mode is
  * defined by the OEM configuration parameters providing no PHY_MASK parameters
  * for any PORT. i.e. There are no phys assigned to any of the ports at start.
  * MPC Manual PORT configuration mode is defined by the OEM configuration
  * parameters providing a PHY_MASK value for any PORT.  It is assumed that any
  * PORT with no PHY_MASK is an invalid port and not all PHYs must be assigned.
  * A PORT_PHY mask that assigns just a single PHY to a port and no other PHYs
  * being assigned is sufficient to declare manual PORT configuration.
  */
 enum sci_port_configuration_mode {
 	SCIC_PORT_MANUAL_CONFIGURATION_MODE = 0,
 	SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE = 1
 };

 struct sci_bios_oem_param_block_hdr {
 	uint8_t signature[ISCI_ROM_SIG_SIZE];
 	uint16_t total_block_length;
 	uint8_t hdr_length;
 	uint8_t version;
 	uint8_t preboot_source;
 	uint8_t num_elements;
 	uint16_t element_length;
 	uint8_t reserved[8];
 } __attribute__ ((packed));

 struct sci_oem_params {
 	struct {
 		uint8_t mode_type;
 		uint8_t max_concurr_spin_up;
 		/*
 		 * This bitfield indicates the OEM's desired default Tx
 		 * Spread Spectrum Clocking (SSC) settings for SATA and SAS.
 		 * NOTE: Default SSC Modulation Frequency is 31.5KHz.
 		 */
 		union {
 			struct {
 			/*
 			 * NOTE: Max spread for SATA is +0 / -5000 PPM.
 			 * Down-spreading SSC (only method allowed for SATA):
 			 *  SATA SSC Tx Disabled                    = 0x0
 			 *  SATA SSC Tx at +0 / -1419 PPM Spread    = 0x2
 			 *  SATA SSC Tx at +0 / -2129 PPM Spread    = 0x3
 			 *  SATA SSC Tx at +0 / -4257 PPM Spread    = 0x6
 			 *  SATA SSC Tx at +0 / -4967 PPM Spread    = 0x7
 			 */
 				uint8_t ssc_sata_tx_spread_level:4;
 			/*
 			 * SAS SSC Tx Disabled                     = 0x0
 			 *
 			 * NOTE: Max spread for SAS down-spreading +0 /
 			 *	 -2300 PPM
 			 * Down-spreading SSC:
 			 *  SAS SSC Tx at +0 / -1419 PPM Spread     = 0x2
 			 *  SAS SSC Tx at +0 / -2129 PPM Spread     = 0x3
 			 *
 			 * NOTE: Max spread for SAS center-spreading +2300 /
 			 *	 -2300 PPM
 			 * Center-spreading SSC:
 			 *  SAS SSC Tx at +1064 / -1064 PPM Spread  = 0x3
 			 *  SAS SSC Tx at +2129 / -2129 PPM Spread  = 0x6
 			 */
 				uint8_t ssc_sas_tx_spread_level:3;
 			/*
 			 * NOTE: Refer to the SSC section of the SAS 2.x
 			 * Specification for proper setting of this field.
 			 * For standard SAS Initiator SAS PHY operation it
 			 * should be 0 for Down-spreading.
 			 * SAS SSC Tx spread type:
 			 *  Down-spreading SSC      = 0
 			 *  Center-spreading SSC    = 1
 			 */
 				uint8_t ssc_sas_tx_type:1;
 			};
 			uint8_t do_enable_ssc;
 		};
 		/*
 		 * This field indicates length of the SAS/SATA cable between
 		 * host and device.
 		 * This field is used make relationship between analog
 		 * parameters of the phy in the silicon and length of the cable.
 		 * Supported cable attenuation levels:
 		 * "short"- up to 3m, "medium"-3m to 6m, and "long"- more than
 		 * 6m.
 		 *
 		 * This is bit mask field:
 		 *
 		 * BIT:      (MSB) 7     6     5     4
 		 * ASSIGNMENT:   <phy3><phy2><phy1><phy0>  - Medium cable
 		 *                                           length assignment
 		 * BIT:            3     2     1     0  (LSB)
 		 * ASSIGNMENT:   <phy3><phy2><phy1><phy0>  - Long cable length
 		 *                                           assignment
 		 *
 		 * BITS 7-4 are set when the cable length is assigned to medium
 		 * BITS 3-0 are set when the cable length is assigned to long
 		 *
 		 * The BIT positions are clear when the cable length is
 		 * assigned to short.
 		 *
 		 * Setting the bits for both long and medium cable length is
 		 * undefined.
 		 *
 		 * A value of 0x84 would assign
 		 *    phy3 - medium
 		 *    phy2 - long
 		 *    phy1 - short
 		 *    phy0 - short
 		 */
 		uint8_t cable_selection_mask;
 	} controller;

 	struct {
 		uint8_t phy_mask;
 	} ports[SCI_MAX_PORTS];

 	struct sci_phy_oem_params {
 		struct {
 			uint32_t high;
 			uint32_t low;
 		} sas_address;

 		uint32_t afe_tx_amp_control0;
 		uint32_t afe_tx_amp_control1;
 		uint32_t afe_tx_amp_control2;
 		uint32_t afe_tx_amp_control3;
 	} phys[SCI_MAX_PHYS];
 } __attribute__ ((packed));

 struct isci_orom {
 	struct sci_bios_oem_param_block_hdr hdr;
 	struct sci_oem_params ctrl[SCI_MAX_CONTROLLERS];
 } __attribute__ ((packed));

 #endif
	/*
	* This file is provided under a dual BSD/GPLv2 license. When using or
	* redistributing this file, you may do so under either license.
	*
	* GPL LICENSE SUMMARY
	*
	* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of version 2 of the GNU General Public License as
	* published by the Free Software Foundation.
	*
	* This program is distributed in the hope that 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.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
	* The full GNU General Public License is included in this distribution
	* in the file called LICENSE.GPL.
	*
	* BSD LICENSE
	*
	* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in
	* the documentation and/or other materials provided with the
	* distribution.
	* * Neither the name of Intel Corporation nor the names of its
	* contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/
	#ifndef _ISCI_PROBE_ROMS_H_
	#define _ISCI_PROBE_ROMS_H_

	#ifdef __KERNEL__
	#include <linux/firmware.h>
	#include <linux/pci.h>
	#include <linux/efi.h>
	#include "isci.h"

	#define SCIC_SDS_PARM_NO_SPEED 0

	/* generation 1 (i.e. 1.5 Gb/s) */
	#define SCIC_SDS_PARM_GEN1_SPEED 1

	/* generation 2 (i.e. 3.0 Gb/s) */
	#define SCIC_SDS_PARM_GEN2_SPEED 2

	/* generation 3 (i.e. 6.0 Gb/s) */
	#define SCIC_SDS_PARM_GEN3_SPEED 3
	#define SCIC_SDS_PARM_MAX_SPEED SCIC_SDS_PARM_GEN3_SPEED

	/* parameters that can be set by module parameters */
	struct sci_user_parameters {
	struct sci_phy_user_params {
	/**
	* This field specifies the NOTIFY (ENABLE SPIN UP) primitive
	* insertion frequency for this phy index.
	*/
	u32 notify_enable_spin_up_insertion_frequency;

	/**
	* This method specifies the number of transmitted DWORDs within which
	* to transmit a single ALIGN primitive. This value applies regardless
	* of what type of device is attached or connection state. A value of
	* 0 indicates that no ALIGN primitives will be inserted.
	*/
	u16 align_insertion_frequency;

	/**
	* This method specifies the number of transmitted DWORDs within which
	* to transmit 2 ALIGN primitives. This applies for SAS connections
	* only. A minimum value of 3 is required for this field.
	*/
	u16 in_connection_align_insertion_frequency;

	/**
	* This field indicates the maximum speed generation to be utilized
	* by phys in the supplied port.
	* - A value of 1 indicates generation 1 (i.e. 1.5 Gb/s).
	* - A value of 2 indicates generation 2 (i.e. 3.0 Gb/s).
	* - A value of 3 indicates generation 3 (i.e. 6.0 Gb/s).
	*/
	u8 max_speed_generation;

	} phys[SCI_MAX_PHYS];

	/**
	* This field specifies the maximum number of direct attached devices
	* that can have power supplied to them simultaneously.
	*/
	u8 max_concurr_spinup;

	/**
	* This field specifies the number of seconds to allow a phy to consume
	* power before yielding to another phy.
	*
	*/
	u8 phy_spin_up_delay_interval;

	/**
	* These timer values specifies how long a link will remain open with no
	* activity in increments of a microsecond, it can be in increments of
	* 100 microseconds if the upper most bit is set.
	*
	*/
	u16 stp_inactivity_timeout;
	u16 ssp_inactivity_timeout;

	/**
	* These timer values specifies how long a link will remain open in increments
	* of 100 microseconds.
	*
	*/
	u16 stp_max_occupancy_timeout;
	u16 ssp_max_occupancy_timeout;

	/**
	* This timer value specifies how long a link will remain open with no
	* outbound traffic in increments of a microsecond.
	*
	*/
	u8 no_outbound_task_timeout;

	};

	#define SCIC_SDS_PARM_PHY_MASK_MIN 0x0
	#define SCIC_SDS_PARM_PHY_MASK_MAX 0xF
	#define MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT 4

	struct sci_oem_params;
	int sci_oem_parameters_validate(struct sci_oem_params *oem, u8 version);

	struct isci_orom;
	struct isci_orom isci_request_oprom(struct pci_dev pdev);
	struct isci_orom isci_request_firmware(struct pci_dev pdev, const struct firmware *fw);
	struct isci_orom isci_get_efi_var(struct pci_dev pdev);

	struct isci_oem_hdr {
	u8 sig[4];
	u8 rev_major;
	u8 rev_minor;
	u16 len;
	u8 checksum;
	u8 reserved1;
	u16 reserved2;
	} __attribute__ ((packed));

	#else
	#define SCI_MAX_PORTS 4
	#define SCI_MAX_PHYS 4
	#define SCI_MAX_CONTROLLERS 2
	#endif

	#define ISCI_FW_NAME "isci/isci_firmware.bin"

	#define ROMSIGNATURE 0xaa55

	#define ISCI_OEM_SIG "$OEM"
	#define ISCI_OEM_SIG_SIZE 4
	#define ISCI_ROM_SIG "ISCUOEMB"
	#define ISCI_ROM_SIG_SIZE 8

	#define ISCI_EFI_VENDOR_GUID \
	EFI_GUID(0x193dfefa, 0xa445, 0x4302, 0x99, 0xd8, 0xef, 0x3a, 0xad, \
	0x1a, 0x04, 0xc6)
	#define ISCI_EFI_VAR_NAME "RstScuO"

	#define ISCI_ROM_VER_1_0 0x10
	#define ISCI_ROM_VER_1_1 0x11
	#define ISCI_ROM_VER_1_3 0x13
	#define ISCI_ROM_VER_LATEST ISCI_ROM_VER_1_3

	/* Allowed PORT configuration modes APC Automatic PORT configuration mode is
	* defined by the OEM configuration parameters providing no PHY_MASK parameters
	* for any PORT. i.e. There are no phys assigned to any of the ports at start.
	* MPC Manual PORT configuration mode is defined by the OEM configuration
	* parameters providing a PHY_MASK value for any PORT. It is assumed that any
	* PORT with no PHY_MASK is an invalid port and not all PHYs must be assigned.
	* A PORT_PHY mask that assigns just a single PHY to a port and no other PHYs
	* being assigned is sufficient to declare manual PORT configuration.
	*/
	enum sci_port_configuration_mode {
	SCIC_PORT_MANUAL_CONFIGURATION_MODE = 0,
	SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE = 1
	};

	struct sci_bios_oem_param_block_hdr {
	uint8_t signature[ISCI_ROM_SIG_SIZE];
	uint16_t total_block_length;
	uint8_t hdr_length;
	uint8_t version;
	uint8_t preboot_source;
	uint8_t num_elements;
	uint16_t element_length;
	uint8_t reserved[8];
	} __attribute__ ((packed));

	struct sci_oem_params {
	struct {
	uint8_t mode_type;
	uint8_t max_concurr_spin_up;
	/*
	* This bitfield indicates the OEM's desired default Tx
	* Spread Spectrum Clocking (SSC) settings for SATA and SAS.
	* NOTE: Default SSC Modulation Frequency is 31.5KHz.
	*/
	union {
	struct {
	/*
	* NOTE: Max spread for SATA is +0 / -5000 PPM.
	* Down-spreading SSC (only method allowed for SATA):
	* SATA SSC Tx Disabled = 0x0
	* SATA SSC Tx at +0 / -1419 PPM Spread = 0x2
	* SATA SSC Tx at +0 / -2129 PPM Spread = 0x3
	* SATA SSC Tx at +0 / -4257 PPM Spread = 0x6
	* SATA SSC Tx at +0 / -4967 PPM Spread = 0x7
	*/
	uint8_t ssc_sata_tx_spread_level:4;
	/*
	* SAS SSC Tx Disabled = 0x0
	*
	* NOTE: Max spread for SAS down-spreading +0 /
	* -2300 PPM
	* Down-spreading SSC:
	* SAS SSC Tx at +0 / -1419 PPM Spread = 0x2
	* SAS SSC Tx at +0 / -2129 PPM Spread = 0x3
	*
	* NOTE: Max spread for SAS center-spreading +2300 /
	* -2300 PPM
	* Center-spreading SSC:
	* SAS SSC Tx at +1064 / -1064 PPM Spread = 0x3
	* SAS SSC Tx at +2129 / -2129 PPM Spread = 0x6
	*/
	uint8_t ssc_sas_tx_spread_level:3;
	/*
	* NOTE: Refer to the SSC section of the SAS 2.x
	* Specification for proper setting of this field.
	* For standard SAS Initiator SAS PHY operation it
	* should be 0 for Down-spreading.
	* SAS SSC Tx spread type:
	* Down-spreading SSC = 0
	* Center-spreading SSC = 1
	*/
	uint8_t ssc_sas_tx_type:1;
	};
	uint8_t do_enable_ssc;
	};
	/*
	* This field indicates length of the SAS/SATA cable between
	* host and device.
	* This field is used make relationship between analog
	* parameters of the phy in the silicon and length of the cable.
	* Supported cable attenuation levels:
	* "short"- up to 3m, "medium"-3m to 6m, and "long"- more than
	* 6m.
	*
	* This is bit mask field:
	*
	* BIT: (MSB) 7 6 5 4
	* ASSIGNMENT: <phy3><phy2><phy1><phy0> - Medium cable
	* length assignment
	* BIT: 3 2 1 0 (LSB)
	* ASSIGNMENT: <phy3><phy2><phy1><phy0> - Long cable length
	* assignment
	*
	* BITS 7-4 are set when the cable length is assigned to medium
	* BITS 3-0 are set when the cable length is assigned to long
	*
	* The BIT positions are clear when the cable length is
	* assigned to short.
	*
	* Setting the bits for both long and medium cable length is
	* undefined.
	*
	* A value of 0x84 would assign
	* phy3 - medium
	* phy2 - long
	* phy1 - short
	* phy0 - short
	*/
	uint8_t cable_selection_mask;
	} controller;

	struct {
	uint8_t phy_mask;
	} ports[SCI_MAX_PORTS];

	struct sci_phy_oem_params {
	struct {
	uint32_t high;
	uint32_t low;
	} sas_address;

	uint32_t afe_tx_amp_control0;
	uint32_t afe_tx_amp_control1;
	uint32_t afe_tx_amp_control2;
	uint32_t afe_tx_amp_control3;
	} phys[SCI_MAX_PHYS];
	} __attribute__ ((packed));

	struct isci_orom {
	struct sci_bios_oem_param_block_hdr hdr;
	struct sci_oem_params ctrl[SCI_MAX_CONTROLLERS];
	} __attribute__ ((packed));

	#endif