drivers/scsi/mvumi.h - linux/kernel/git/dhowells/linux-fs - Git at Google

 /*
   * Marvell UMI head file
   *
   * Copyright 2011 Marvell. <jyli@marvell.com>
   *
   * This file is licensed under GPLv2.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License as
   * published by the Free Software Foundation; version 2 of the
   * License.
   *
   * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
   * USA
  */

 #ifndef MVUMI_H
 #define MVUMI_H

 #define MAX_BASE_ADDRESS	6

 #define VER_MAJOR		1
 #define VER_MINOR		1
 #define VER_OEM			0
 #define VER_BUILD		1500

 #define MV_DRIVER_NAME			"mvumi"
 #define PCI_DEVICE_ID_MARVELL_MV9143	0x9143
 #define PCI_DEVICE_ID_MARVELL_MV9580	0x9580

 #define MVUMI_INTERNAL_CMD_WAIT_TIME	45
 #define MVUMI_INQUIRY_LENGTH		44
 #define MVUMI_INQUIRY_UUID_OFF		36
 #define MVUMI_INQUIRY_UUID_LEN		8

 #define IS_DMA64			(sizeof(dma_addr_t) == 8)

 enum mvumi_qc_result {
 	MV_QUEUE_COMMAND_RESULT_SENT = 0,
 	MV_QUEUE_COMMAND_RESULT_NO_RESOURCE,
 };

 struct mvumi_hw_regs {
 	/* For CPU */
 	void *main_int_cause_reg;
 	void *enpointa_mask_reg;
 	void *enpointb_mask_reg;
 	void *rstoutn_en_reg;
 	void *ctrl_sts_reg;
 	void *rstoutn_mask_reg;
 	void *sys_soft_rst_reg;

 	/* For Doorbell */
 	void *pciea_to_arm_drbl_reg;
 	void *arm_to_pciea_drbl_reg;
 	void *arm_to_pciea_mask_reg;
 	void *pciea_to_arm_msg0;
 	void *pciea_to_arm_msg1;
 	void *arm_to_pciea_msg0;
 	void *arm_to_pciea_msg1;

 	/* reset register */
 	void *reset_request;
 	void *reset_enable;

 	/* For Message Unit */
 	void *inb_list_basel;
 	void *inb_list_baseh;
 	void *inb_aval_count_basel;
 	void *inb_aval_count_baseh;
 	void *inb_write_pointer;
 	void *inb_read_pointer;
 	void *outb_list_basel;
 	void *outb_list_baseh;
 	void *outb_copy_basel;
 	void *outb_copy_baseh;
 	void *outb_copy_pointer;
 	void *outb_read_pointer;
 	void *inb_isr_cause;
 	void *outb_isr_cause;
 	void *outb_coal_cfg;
 	void *outb_coal_timeout;

 	/* Bit setting for HW */
 	u32 int_comaout;
 	u32 int_comaerr;
 	u32 int_dl_cpu2pciea;
 	u32 int_mu;
 	u32 int_drbl_int_mask;
 	u32 int_main_int_mask;
 	u32 cl_pointer_toggle;
 	u32 cl_slot_num_mask;
 	u32 clic_irq;
 	u32 clic_in_err;
 	u32 clic_out_err;
 };

 struct mvumi_dyn_list_entry {
 	u32 src_low_addr;
 	u32 src_high_addr;
 	u32 if_length;
 	u32 reserve;
 };

 #define SCSI_CMD_MARVELL_SPECIFIC	0xE1
 #define CDB_CORE_MODULE			0x1
 #define CDB_CORE_SHUTDOWN		0xB

 enum {
 	DRBL_HANDSHAKE			= 1 << 0,
 	DRBL_SOFT_RESET			= 1 << 1,
 	DRBL_BUS_CHANGE			= 1 << 2,
 	DRBL_EVENT_NOTIFY		= 1 << 3,
 	DRBL_MU_RESET			= 1 << 4,
 	DRBL_HANDSHAKE_ISR		= DRBL_HANDSHAKE,

 	/*
 	* Command flag is the flag for the CDB command itself
 	*/
 	/* 1-non data; 0-data command */
 	CMD_FLAG_NON_DATA		= 1 << 0,
 	CMD_FLAG_DMA			= 1 << 1,
 	CMD_FLAG_PIO			= 1 << 2,
 	/* 1-host read data */
 	CMD_FLAG_DATA_IN		= 1 << 3,
 	/* 1-host write data */
 	CMD_FLAG_DATA_OUT		= 1 << 4,
 	CMD_FLAG_PRDT_IN_HOST		= 1 << 5,
 };

 #define APICDB0_EVENT			0xF4
 #define APICDB1_EVENT_GETEVENT		0
 #define APICDB1_HOST_GETEVENT		1
 #define MAX_EVENTS_RETURNED		6

 #define DEVICE_OFFLINE	0
 #define DEVICE_ONLINE	1

 struct mvumi_hotplug_event {
 	u16 size;
 	u8 dummy[2];
 	u8 bitmap[0];
 };

 struct mvumi_driver_event {
 	u32	time_stamp;
 	u32	sequence_no;
 	u32	event_id;
 	u8	severity;
 	u8	param_count;
 	u16	device_id;
 	u32	params[4];
 	u8	sense_data_length;
 	u8	Reserved1;
 	u8	sense_data[30];
 };

 struct mvumi_event_req {
 	unsigned char	count;
 	unsigned char	reserved[3];
 	struct mvumi_driver_event  events[MAX_EVENTS_RETURNED];
 };

 struct mvumi_events_wq {
 	struct work_struct work_q;
 	struct mvumi_hba *mhba;
 	unsigned int event;
 	void *param;
 };

 #define HS_CAPABILITY_SUPPORT_COMPACT_SG	(1U << 4)
 #define HS_CAPABILITY_SUPPORT_PRD_HOST		(1U << 5)
 #define HS_CAPABILITY_SUPPORT_DYN_SRC		(1U << 6)
 #define HS_CAPABILITY_NEW_PAGE_IO_DEPTH_DEF	(1U << 14)

 #define MVUMI_MAX_SG_ENTRY	32
 #define SGD_EOT			(1L << 27)
 #define SGD_EOT_CP		(1L << 22)

 struct mvumi_sgl {
 	u32	baseaddr_l;
 	u32	baseaddr_h;
 	u32	flags;
 	u32	size;
 };
 struct mvumi_compact_sgl {
 	u32	baseaddr_l;
 	u32	baseaddr_h;
 	u32	flags;
 };

 #define GET_COMPACT_SGD_SIZE(sgd)	\
 	((((struct mvumi_compact_sgl *)(sgd))->flags) & 0x3FFFFFL)

 #define SET_COMPACT_SGD_SIZE(sgd, sz) do {			\
 	(((struct mvumi_compact_sgl *)(sgd))->flags) &= ~0x3FFFFFL;	\
 	(((struct mvumi_compact_sgl *)(sgd))->flags) |= (sz);		\
 } while (0)
 #define sgd_getsz(_mhba, sgd, sz) do {				\
 	if (_mhba->hba_capability & HS_CAPABILITY_SUPPORT_COMPACT_SG)	\
 		(sz) = GET_COMPACT_SGD_SIZE(sgd);	\
 	else \
 		(sz) = (sgd)->size;			\
 } while (0)

 #define sgd_setsz(_mhba, sgd, sz) do {				\
 	if (_mhba->hba_capability & HS_CAPABILITY_SUPPORT_COMPACT_SG)	\
 		SET_COMPACT_SGD_SIZE(sgd, sz);		\
 	else \
 		(sgd)->size = (sz);			\
 } while (0)

 #define sgd_inc(_mhba, sgd) do {	\
 	if (_mhba->hba_capability & HS_CAPABILITY_SUPPORT_COMPACT_SG)	\
 		sgd = (struct mvumi_sgl *)(((unsigned char *) (sgd)) + 12); \
 	else \
 		sgd = (struct mvumi_sgl *)(((unsigned char *) (sgd)) + 16); \
 } while (0)

 struct mvumi_res {
 	struct list_head entry;
 	dma_addr_t bus_addr;
 	void *virt_addr;
 	unsigned int size;
 	unsigned short type;	/* enum Resource_Type */
 };

 /* Resource type */
 enum resource_type {
 	RESOURCE_CACHED_MEMORY = 0,
 	RESOURCE_UNCACHED_MEMORY
 };

 struct mvumi_sense_data {
 	u8 error_code:7;
 	u8 valid:1;
 	u8 segment_number;
 	u8 sense_key:4;
 	u8 reserved:1;
 	u8 incorrect_length:1;
 	u8 end_of_media:1;
 	u8 file_mark:1;
 	u8 information[4];
 	u8 additional_sense_length;
 	u8 command_specific_information[4];
 	u8 additional_sense_code;
 	u8 additional_sense_code_qualifier;
 	u8 field_replaceable_unit_code;
 	u8 sense_key_specific[3];
 };

 /* Request initiator must set the status to REQ_STATUS_PENDING. */
 #define REQ_STATUS_PENDING		0x80

 struct mvumi_cmd {
 	struct list_head queue_pointer;
 	struct mvumi_msg_frame *frame;
 	dma_addr_t frame_phys;
 	struct scsi_cmnd *scmd;
 	atomic_t sync_cmd;
 	void *data_buf;
 	unsigned short request_id;
 	unsigned char cmd_status;
 };

 /*
  * the function type of the in bound frame
  */
 #define CL_FUN_SCSI_CMD			0x1

 struct mvumi_msg_frame {
 	u16 device_id;
 	u16 tag;
 	u8 cmd_flag;
 	u8 req_function;
 	u8 cdb_length;
 	u8 sg_counts;
 	u32 data_transfer_length;
 	u16 request_id;
 	u16 reserved1;
 	u8 cdb[MAX_COMMAND_SIZE];
 	u32 payload[1];
 };

 /*
  * the respond flag for data_payload of the out bound frame
  */
 #define CL_RSP_FLAG_NODATA		0x0
 #define CL_RSP_FLAG_SENSEDATA		0x1

 struct mvumi_rsp_frame {
 	u16 device_id;
 	u16 tag;
 	u8 req_status;
 	u8 rsp_flag;	/* Indicates the type of Data_Payload.*/
 	u16 request_id;
 	u32 payload[1];
 };

 struct mvumi_ob_data {
 	struct list_head list;
 	unsigned char data[0];
 };

 struct version_info {
 	u32 ver_major;
 	u32 ver_minor;
 	u32 ver_oem;
 	u32 ver_build;
 };

 #define FW_MAX_DELAY			30
 #define MVUMI_FW_BUSY			(1U << 0)
 #define MVUMI_FW_ATTACH			(1U << 1)
 #define MVUMI_FW_ALLOC			(1U << 2)

 /*
  * State is the state of the MU
  */
 #define FW_STATE_IDLE			0
 #define FW_STATE_STARTING		1
 #define FW_STATE_HANDSHAKING		2
 #define FW_STATE_STARTED		3
 #define FW_STATE_ABORT			4

 #define HANDSHAKE_SIGNATURE		0x5A5A5A5AL
 #define HANDSHAKE_READYSTATE		0x55AA5AA5L
 #define HANDSHAKE_DONESTATE		0x55AAA55AL

 /* HandShake Status definition */
 #define HS_STATUS_OK			1
 #define HS_STATUS_ERR			2
 #define HS_STATUS_INVALID		3

 /* HandShake State/Cmd definition */
 #define HS_S_START			1
 #define HS_S_RESET			2
 #define HS_S_PAGE_ADDR			3
 #define HS_S_QUERY_PAGE			4
 #define HS_S_SEND_PAGE			5
 #define HS_S_END			6
 #define HS_S_ABORT			7
 #define HS_PAGE_VERIFY_SIZE		128

 #define HS_GET_STATE(a)			(a & 0xFFFF)
 #define HS_GET_STATUS(a)		((a & 0xFFFF0000) >> 16)
 #define HS_SET_STATE(a, b)		(a |= (b & 0xFFFF))
 #define HS_SET_STATUS(a, b)		(a |= ((b & 0xFFFF) << 16))

 /* handshake frame */
 struct mvumi_hs_frame {
 	u16 size;
 	/* host information */
 	u8 host_type;
 	u8 reserved_1[1];
 	struct version_info host_ver; /* bios or driver version */

 	/* controller information */
 	u32 system_io_bus;
 	u32 slot_number;
 	u32 intr_level;
 	u32 intr_vector;

 	/* communication list configuration */
 	u32 ib_baseaddr_l;
 	u32 ib_baseaddr_h;
 	u32 ob_baseaddr_l;
 	u32 ob_baseaddr_h;

 	u8 ib_entry_size;
 	u8 ob_entry_size;
 	u8 ob_depth;
 	u8 ib_depth;

 	/* system time */
 	u64 seconds_since1970;
 };

 struct mvumi_hs_header {
 	u8	page_code;
 	u8	checksum;
 	u16	frame_length;
 	u32	frame_content[1];
 };

 /*
  * the page code type of the handshake header
  */
 #define HS_PAGE_FIRM_CAP	0x1
 #define HS_PAGE_HOST_INFO	0x2
 #define HS_PAGE_FIRM_CTL	0x3
 #define HS_PAGE_CL_INFO		0x4
 #define HS_PAGE_TOTAL		0x5

 #define HSP_SIZE(i)	sizeof(struct mvumi_hs_page##i)

 #define HSP_MAX_SIZE ({					\
 	int size, m1, m2;				\
 	m1 = max(HSP_SIZE(1), HSP_SIZE(3));		\
 	m2 = max(HSP_SIZE(2), HSP_SIZE(4));		\
 	size = max(m1, m2);				\
 	size;						\
 })

 /* The format of the page code for Firmware capability */
 struct mvumi_hs_page1 {
 	u8 pagecode;
 	u8 checksum;
 	u16 frame_length;

 	u16 number_of_ports;
 	u16 max_devices_support;
 	u16 max_io_support;
 	u16 umi_ver;
 	u32 max_transfer_size;
 	struct version_info fw_ver;
 	u8 cl_in_max_entry_size;
 	u8 cl_out_max_entry_size;
 	u8 cl_inout_list_depth;
 	u8 total_pages;
 	u16 capability;
 	u16 reserved1;
 };

 /* The format of the page code for Host information */
 struct mvumi_hs_page2 {
 	u8 pagecode;
 	u8 checksum;
 	u16 frame_length;

 	u8 host_type;
 	u8 host_cap;
 	u8 reserved[2];
 	struct version_info host_ver;
 	u32 system_io_bus;
 	u32 slot_number;
 	u32 intr_level;
 	u32 intr_vector;
 	u64 seconds_since1970;
 };

 /* The format of the page code for firmware control  */
 struct mvumi_hs_page3 {
 	u8	pagecode;
 	u8	checksum;
 	u16	frame_length;
 	u16	control;
 	u8	reserved[2];
 	u32	host_bufferaddr_l;
 	u32	host_bufferaddr_h;
 	u32	host_eventaddr_l;
 	u32	host_eventaddr_h;
 };

 struct mvumi_hs_page4 {
 	u8	pagecode;
 	u8	checksum;
 	u16	frame_length;
 	u32	ib_baseaddr_l;
 	u32	ib_baseaddr_h;
 	u32	ob_baseaddr_l;
 	u32	ob_baseaddr_h;
 	u8	ib_entry_size;
 	u8	ob_entry_size;
 	u8	ob_depth;
 	u8	ib_depth;
 };

 struct mvumi_tag {
 	unsigned short *stack;
 	unsigned short top;
 	unsigned short size;
 };

 struct mvumi_device {
 	struct list_head list;
 	struct scsi_device *sdev;
 	u64	wwid;
 	u8	dev_type;
 	int	id;
 };

 struct mvumi_hba {
 	void *base_addr[MAX_BASE_ADDRESS];
 	u32 pci_base[MAX_BASE_ADDRESS];
 	void *mmio;
 	struct list_head cmd_pool;
 	struct Scsi_Host *shost;
 	wait_queue_head_t int_cmd_wait_q;
 	struct pci_dev *pdev;
 	unsigned int unique_id;
 	atomic_t fw_outstanding;
 	struct mvumi_instance_template *instancet;

 	void *ib_list;
 	dma_addr_t ib_list_phys;

 	void *ib_frame;
 	dma_addr_t ib_frame_phys;

 	void *ob_list;
 	dma_addr_t ob_list_phys;

 	void *ib_shadow;
 	dma_addr_t ib_shadow_phys;

 	void *ob_shadow;
 	dma_addr_t ob_shadow_phys;

 	void *handshake_page;
 	dma_addr_t handshake_page_phys;

 	unsigned int global_isr;
 	unsigned int isr_status;

 	unsigned short max_sge;
 	unsigned short max_target_id;
 	unsigned char *target_map;
 	unsigned int max_io;
 	unsigned int list_num_io;
 	unsigned int ib_max_size;
 	unsigned int ob_max_size;
 	unsigned int ib_max_size_setting;
 	unsigned int ob_max_size_setting;
 	unsigned int max_transfer_size;
 	unsigned char hba_total_pages;
 	unsigned char fw_flag;
 	unsigned char request_id_enabled;
 	unsigned char eot_flag;
 	unsigned short hba_capability;
 	unsigned short io_seq;

 	unsigned int ib_cur_slot;
 	unsigned int ob_cur_slot;
 	unsigned int fw_state;
 	struct mutex sas_discovery_mutex;

 	struct list_head ob_data_list;
 	struct list_head free_ob_list;
 	struct list_head res_list;
 	struct list_head waiting_req_list;

 	struct mvumi_tag tag_pool;
 	struct mvumi_cmd **tag_cmd;
 	struct mvumi_hw_regs *regs;
 	struct mutex device_lock;
 	struct list_head mhba_dev_list;
 	struct list_head shost_dev_list;
 	struct task_struct *dm_thread;
 	atomic_t pnp_count;
 };

 struct mvumi_instance_template {
 	void (*fire_cmd) (struct mvumi_hba *, struct mvumi_cmd *);
 	void (*enable_intr) (struct mvumi_hba *);
 	void (*disable_intr) (struct mvumi_hba *);
 	int (*clear_intr) (void *);
 	unsigned int (*read_fw_status_reg) (struct mvumi_hba *);
 	unsigned int (*check_ib_list) (struct mvumi_hba *);
 	int (*check_ob_list) (struct mvumi_hba *, unsigned int *,
 			      unsigned int *);
 	int (*reset_host) (struct mvumi_hba *);
 };

 extern struct timezone sys_tz;
 #endif
	/*
	* Marvell UMI head file
	*
	* Copyright 2011 Marvell. <jyli@marvell.com>
	*
	* This file is licensed under GPLv2.
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License as
	* published by the Free Software Foundation; version 2 of the
	* License.
	*
	* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
	* USA
	*/

	#ifndef MVUMI_H
	#define MVUMI_H

	#define MAX_BASE_ADDRESS 6

	#define VER_MAJOR 1
	#define VER_MINOR 1
	#define VER_OEM 0
	#define VER_BUILD 1500

	#define MV_DRIVER_NAME "mvumi"
	#define PCI_DEVICE_ID_MARVELL_MV9143 0x9143
	#define PCI_DEVICE_ID_MARVELL_MV9580 0x9580

	#define MVUMI_INTERNAL_CMD_WAIT_TIME 45
	#define MVUMI_INQUIRY_LENGTH 44
	#define MVUMI_INQUIRY_UUID_OFF 36
	#define MVUMI_INQUIRY_UUID_LEN 8

	#define IS_DMA64 (sizeof(dma_addr_t) == 8)

	enum mvumi_qc_result {
	MV_QUEUE_COMMAND_RESULT_SENT = 0,
	MV_QUEUE_COMMAND_RESULT_NO_RESOURCE,
	};

	struct mvumi_hw_regs {
	/* For CPU */
	void *main_int_cause_reg;
	void *enpointa_mask_reg;
	void *enpointb_mask_reg;
	void *rstoutn_en_reg;
	void *ctrl_sts_reg;
	void *rstoutn_mask_reg;
	void *sys_soft_rst_reg;

	/* For Doorbell */
	void *pciea_to_arm_drbl_reg;
	void *arm_to_pciea_drbl_reg;
	void *arm_to_pciea_mask_reg;
	void *pciea_to_arm_msg0;
	void *pciea_to_arm_msg1;
	void *arm_to_pciea_msg0;
	void *arm_to_pciea_msg1;

	/* reset register */
	void *reset_request;
	void *reset_enable;

	/* For Message Unit */
	void *inb_list_basel;
	void *inb_list_baseh;
	void *inb_aval_count_basel;
	void *inb_aval_count_baseh;
	void *inb_write_pointer;
	void *inb_read_pointer;
	void *outb_list_basel;
	void *outb_list_baseh;
	void *outb_copy_basel;
	void *outb_copy_baseh;
	void *outb_copy_pointer;
	void *outb_read_pointer;
	void *inb_isr_cause;
	void *outb_isr_cause;
	void *outb_coal_cfg;
	void *outb_coal_timeout;

	/* Bit setting for HW */
	u32 int_comaout;
	u32 int_comaerr;
	u32 int_dl_cpu2pciea;
	u32 int_mu;
	u32 int_drbl_int_mask;
	u32 int_main_int_mask;
	u32 cl_pointer_toggle;
	u32 cl_slot_num_mask;
	u32 clic_irq;
	u32 clic_in_err;
	u32 clic_out_err;
	};

	struct mvumi_dyn_list_entry {
	u32 src_low_addr;
	u32 src_high_addr;
	u32 if_length;
	u32 reserve;
	};

	#define SCSI_CMD_MARVELL_SPECIFIC 0xE1
	#define CDB_CORE_MODULE 0x1
	#define CDB_CORE_SHUTDOWN 0xB

	enum {
	DRBL_HANDSHAKE = 1 << 0,
	DRBL_SOFT_RESET = 1 << 1,
	DRBL_BUS_CHANGE = 1 << 2,
	DRBL_EVENT_NOTIFY = 1 << 3,
	DRBL_MU_RESET = 1 << 4,
	DRBL_HANDSHAKE_ISR = DRBL_HANDSHAKE,

	/*
	* Command flag is the flag for the CDB command itself
	*/
	/* 1-non data; 0-data command */
	CMD_FLAG_NON_DATA = 1 << 0,
	CMD_FLAG_DMA = 1 << 1,
	CMD_FLAG_PIO = 1 << 2,
	/* 1-host read data */
	CMD_FLAG_DATA_IN = 1 << 3,
	/* 1-host write data */
	CMD_FLAG_DATA_OUT = 1 << 4,
	CMD_FLAG_PRDT_IN_HOST = 1 << 5,
	};

	#define APICDB0_EVENT 0xF4
	#define APICDB1_EVENT_GETEVENT 0
	#define APICDB1_HOST_GETEVENT 1
	#define MAX_EVENTS_RETURNED 6

	#define DEVICE_OFFLINE 0
	#define DEVICE_ONLINE 1

	struct mvumi_hotplug_event {
	u16 size;
	u8 dummy[2];
	u8 bitmap[0];
	};

	struct mvumi_driver_event {
	u32 time_stamp;
	u32 sequence_no;
	u32 event_id;
	u8 severity;
	u8 param_count;
	u16 device_id;
	u32 params[4];
	u8 sense_data_length;
	u8 Reserved1;
	u8 sense_data[30];
	};

	struct mvumi_event_req {
	unsigned char count;
	unsigned char reserved[3];
	struct mvumi_driver_event events[MAX_EVENTS_RETURNED];
	};

	struct mvumi_events_wq {
	struct work_struct work_q;
	struct mvumi_hba *mhba;
	unsigned int event;
	void *param;
	};

	#define HS_CAPABILITY_SUPPORT_COMPACT_SG (1U << 4)
	#define HS_CAPABILITY_SUPPORT_PRD_HOST (1U << 5)
	#define HS_CAPABILITY_SUPPORT_DYN_SRC (1U << 6)
	#define HS_CAPABILITY_NEW_PAGE_IO_DEPTH_DEF (1U << 14)

	#define MVUMI_MAX_SG_ENTRY 32
	#define SGD_EOT (1L << 27)
	#define SGD_EOT_CP (1L << 22)

	struct mvumi_sgl {
	u32 baseaddr_l;
	u32 baseaddr_h;
	u32 flags;
	u32 size;
	};
	struct mvumi_compact_sgl {
	u32 baseaddr_l;
	u32 baseaddr_h;
	u32 flags;
	};

	#define GET_COMPACT_SGD_SIZE(sgd) \
	((((struct mvumi_compact_sgl *)(sgd))->flags) & 0x3FFFFFL)

	#define SET_COMPACT_SGD_SIZE(sgd, sz) do { \
	(((struct mvumi_compact_sgl *)(sgd))->flags) &= ~0x3FFFFFL; \
	(((struct mvumi_compact_sgl *)(sgd))->flags) \|= (sz); \
	} while (0)
	#define sgd_getsz(_mhba, sgd, sz) do { \
	if (_mhba->hba_capability & HS_CAPABILITY_SUPPORT_COMPACT_SG) \
	(sz) = GET_COMPACT_SGD_SIZE(sgd); \
	else \
	(sz) = (sgd)->size; \
	} while (0)

	#define sgd_setsz(_mhba, sgd, sz) do { \
	if (_mhba->hba_capability & HS_CAPABILITY_SUPPORT_COMPACT_SG) \
	SET_COMPACT_SGD_SIZE(sgd, sz); \
	else \
	(sgd)->size = (sz); \
	} while (0)

	#define sgd_inc(_mhba, sgd) do { \
	if (_mhba->hba_capability & HS_CAPABILITY_SUPPORT_COMPACT_SG) \
	sgd = (struct mvumi_sgl )(((unsigned char ) (sgd)) + 12); \
	else \
	sgd = (struct mvumi_sgl )(((unsigned char ) (sgd)) + 16); \
	} while (0)

	struct mvumi_res {
	struct list_head entry;
	dma_addr_t bus_addr;
	void *virt_addr;
	unsigned int size;
	unsigned short type; /* enum Resource_Type */
	};

	/* Resource type */
	enum resource_type {
	RESOURCE_CACHED_MEMORY = 0,
	RESOURCE_UNCACHED_MEMORY
	};

	struct mvumi_sense_data {
	u8 error_code:7;
	u8 valid:1;
	u8 segment_number;
	u8 sense_key:4;
	u8 reserved:1;
	u8 incorrect_length:1;
	u8 end_of_media:1;
	u8 file_mark:1;
	u8 information[4];
	u8 additional_sense_length;
	u8 command_specific_information[4];
	u8 additional_sense_code;
	u8 additional_sense_code_qualifier;
	u8 field_replaceable_unit_code;
	u8 sense_key_specific[3];
	};

	/* Request initiator must set the status to REQ_STATUS_PENDING. */
	#define REQ_STATUS_PENDING 0x80

	struct mvumi_cmd {
	struct list_head queue_pointer;
	struct mvumi_msg_frame *frame;
	dma_addr_t frame_phys;
	struct scsi_cmnd *scmd;
	atomic_t sync_cmd;
	void *data_buf;
	unsigned short request_id;
	unsigned char cmd_status;
	};

	/*
	* the function type of the in bound frame
	*/
	#define CL_FUN_SCSI_CMD 0x1

	struct mvumi_msg_frame {
	u16 device_id;
	u16 tag;
	u8 cmd_flag;
	u8 req_function;
	u8 cdb_length;
	u8 sg_counts;
	u32 data_transfer_length;
	u16 request_id;
	u16 reserved1;
	u8 cdb[MAX_COMMAND_SIZE];
	u32 payload[1];
	};

	/*
	* the respond flag for data_payload of the out bound frame
	*/
	#define CL_RSP_FLAG_NODATA 0x0
	#define CL_RSP_FLAG_SENSEDATA 0x1

	struct mvumi_rsp_frame {
	u16 device_id;
	u16 tag;
	u8 req_status;
	u8 rsp_flag; /* Indicates the type of Data_Payload.*/
	u16 request_id;
	u32 payload[1];
	};

	struct mvumi_ob_data {
	struct list_head list;
	unsigned char data[0];
	};

	struct version_info {
	u32 ver_major;
	u32 ver_minor;
	u32 ver_oem;
	u32 ver_build;
	};

	#define FW_MAX_DELAY 30
	#define MVUMI_FW_BUSY (1U << 0)
	#define MVUMI_FW_ATTACH (1U << 1)
	#define MVUMI_FW_ALLOC (1U << 2)

	/*
	* State is the state of the MU
	*/
	#define FW_STATE_IDLE 0
	#define FW_STATE_STARTING 1
	#define FW_STATE_HANDSHAKING 2
	#define FW_STATE_STARTED 3
	#define FW_STATE_ABORT 4

	#define HANDSHAKE_SIGNATURE 0x5A5A5A5AL
	#define HANDSHAKE_READYSTATE 0x55AA5AA5L
	#define HANDSHAKE_DONESTATE 0x55AAA55AL

	/* HandShake Status definition */
	#define HS_STATUS_OK 1
	#define HS_STATUS_ERR 2
	#define HS_STATUS_INVALID 3

	/* HandShake State/Cmd definition */
	#define HS_S_START 1
	#define HS_S_RESET 2
	#define HS_S_PAGE_ADDR 3
	#define HS_S_QUERY_PAGE 4
	#define HS_S_SEND_PAGE 5
	#define HS_S_END 6
	#define HS_S_ABORT 7
	#define HS_PAGE_VERIFY_SIZE 128

	#define HS_GET_STATE(a) (a & 0xFFFF)
	#define HS_GET_STATUS(a) ((a & 0xFFFF0000) >> 16)
	#define HS_SET_STATE(a, b) (a \|= (b & 0xFFFF))
	#define HS_SET_STATUS(a, b) (a \|= ((b & 0xFFFF) << 16))

	/* handshake frame */
	struct mvumi_hs_frame {
	u16 size;
	/* host information */
	u8 host_type;
	u8 reserved_1[1];
	struct version_info host_ver; /* bios or driver version */

	/* controller information */
	u32 system_io_bus;
	u32 slot_number;
	u32 intr_level;
	u32 intr_vector;

	/* communication list configuration */
	u32 ib_baseaddr_l;
	u32 ib_baseaddr_h;
	u32 ob_baseaddr_l;
	u32 ob_baseaddr_h;

	u8 ib_entry_size;
	u8 ob_entry_size;
	u8 ob_depth;
	u8 ib_depth;

	/* system time */
	u64 seconds_since1970;
	};

	struct mvumi_hs_header {
	u8 page_code;
	u8 checksum;
	u16 frame_length;
	u32 frame_content[1];
	};

	/*
	* the page code type of the handshake header
	*/
	#define HS_PAGE_FIRM_CAP 0x1
	#define HS_PAGE_HOST_INFO 0x2
	#define HS_PAGE_FIRM_CTL 0x3
	#define HS_PAGE_CL_INFO 0x4
	#define HS_PAGE_TOTAL 0x5

	#define HSP_SIZE(i) sizeof(struct mvumi_hs_page##i)

	#define HSP_MAX_SIZE ({ \
	int size, m1, m2; \
	m1 = max(HSP_SIZE(1), HSP_SIZE(3)); \
	m2 = max(HSP_SIZE(2), HSP_SIZE(4)); \
	size = max(m1, m2); \
	size; \
	})

	/* The format of the page code for Firmware capability */
	struct mvumi_hs_page1 {
	u8 pagecode;
	u8 checksum;
	u16 frame_length;

	u16 number_of_ports;
	u16 max_devices_support;
	u16 max_io_support;
	u16 umi_ver;
	u32 max_transfer_size;
	struct version_info fw_ver;
	u8 cl_in_max_entry_size;
	u8 cl_out_max_entry_size;
	u8 cl_inout_list_depth;
	u8 total_pages;
	u16 capability;
	u16 reserved1;
	};

	/* The format of the page code for Host information */
	struct mvumi_hs_page2 {
	u8 pagecode;
	u8 checksum;
	u16 frame_length;

	u8 host_type;
	u8 host_cap;
	u8 reserved[2];
	struct version_info host_ver;
	u32 system_io_bus;
	u32 slot_number;
	u32 intr_level;
	u32 intr_vector;
	u64 seconds_since1970;
	};

	/* The format of the page code for firmware control */
	struct mvumi_hs_page3 {
	u8 pagecode;
	u8 checksum;
	u16 frame_length;
	u16 control;
	u8 reserved[2];
	u32 host_bufferaddr_l;
	u32 host_bufferaddr_h;
	u32 host_eventaddr_l;
	u32 host_eventaddr_h;
	};

	struct mvumi_hs_page4 {
	u8 pagecode;
	u8 checksum;
	u16 frame_length;
	u32 ib_baseaddr_l;
	u32 ib_baseaddr_h;
	u32 ob_baseaddr_l;
	u32 ob_baseaddr_h;
	u8 ib_entry_size;
	u8 ob_entry_size;
	u8 ob_depth;
	u8 ib_depth;
	};

	struct mvumi_tag {
	unsigned short *stack;
	unsigned short top;
	unsigned short size;
	};

	struct mvumi_device {
	struct list_head list;
	struct scsi_device *sdev;
	u64 wwid;
	u8 dev_type;
	int id;
	};

	struct mvumi_hba {
	void *base_addr[MAX_BASE_ADDRESS];
	u32 pci_base[MAX_BASE_ADDRESS];
	void *mmio;
	struct list_head cmd_pool;
	struct Scsi_Host *shost;
	wait_queue_head_t int_cmd_wait_q;
	struct pci_dev *pdev;
	unsigned int unique_id;
	atomic_t fw_outstanding;
	struct mvumi_instance_template *instancet;

	void *ib_list;
	dma_addr_t ib_list_phys;

	void *ib_frame;
	dma_addr_t ib_frame_phys;

	void *ob_list;
	dma_addr_t ob_list_phys;

	void *ib_shadow;
	dma_addr_t ib_shadow_phys;

	void *ob_shadow;
	dma_addr_t ob_shadow_phys;

	void *handshake_page;
	dma_addr_t handshake_page_phys;

	unsigned int global_isr;
	unsigned int isr_status;

	unsigned short max_sge;
	unsigned short max_target_id;
	unsigned char *target_map;
	unsigned int max_io;
	unsigned int list_num_io;
	unsigned int ib_max_size;
	unsigned int ob_max_size;
	unsigned int ib_max_size_setting;
	unsigned int ob_max_size_setting;
	unsigned int max_transfer_size;
	unsigned char hba_total_pages;
	unsigned char fw_flag;
	unsigned char request_id_enabled;
	unsigned char eot_flag;
	unsigned short hba_capability;
	unsigned short io_seq;

	unsigned int ib_cur_slot;
	unsigned int ob_cur_slot;
	unsigned int fw_state;
	struct mutex sas_discovery_mutex;

	struct list_head ob_data_list;
	struct list_head free_ob_list;
	struct list_head res_list;
	struct list_head waiting_req_list;

	struct mvumi_tag tag_pool;
	struct mvumi_cmd **tag_cmd;
	struct mvumi_hw_regs *regs;
	struct mutex device_lock;
	struct list_head mhba_dev_list;
	struct list_head shost_dev_list;
	struct task_struct *dm_thread;
	atomic_t pnp_count;
	};

	struct mvumi_instance_template {
	void (fire_cmd) (struct mvumi_hba , struct mvumi_cmd *);
	void (enable_intr) (struct mvumi_hba );
	void (disable_intr) (struct mvumi_hba );
	int (clear_intr) (void );
	unsigned int (read_fw_status_reg) (struct mvumi_hba );
	unsigned int (check_ib_list) (struct mvumi_hba );
	int (check_ob_list) (struct mvumi_hba , unsigned int *,
	unsigned int *);
	int (reset_host) (struct mvumi_hba );
	};

	extern struct timezone sys_tz;
	#endif