[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / hpsa_cmd.h

/*
 *    Disk Array driver for HP Smart Array SAS controllers
 *    Copyright 2000, 2009 Hewlett-Packard Development Company, L.P.
 *
 *    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, GOOD TITLE or
 *    NON INFRINGEMENT.  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *    Questions/Comments/Bugfixes to iss_storagedev@hp.com
 *
 */
#ifndef HPSA_CMD_H
#define HPSA_CMD_H

/* general boundary defintions */
#define SENSEINFOBYTES          32 /* may vary between hbas */
#define SG_ENTRIES_IN_CMD	32 /* Max SG entries excluding chain blocks */
#define HPSA_SG_CHAIN		0x80000000
#define HPSA_SG_LAST		0x40000000
#define MAXREPLYQS              256

/* Command Status value */
#define CMD_SUCCESS             0x0000
#define CMD_TARGET_STATUS       0x0001
#define CMD_DATA_UNDERRUN       0x0002
#define CMD_DATA_OVERRUN        0x0003
#define CMD_INVALID             0x0004
#define CMD_PROTOCOL_ERR        0x0005
#define CMD_HARDWARE_ERR        0x0006
#define CMD_CONNECTION_LOST     0x0007
#define CMD_ABORTED             0x0008
#define CMD_ABORT_FAILED        0x0009
#define CMD_UNSOLICITED_ABORT   0x000A
#define CMD_TIMEOUT             0x000B
#define CMD_UNABORTABLE		0x000C
#define CMD_IOACCEL_DISABLED	0x000E


/* Unit Attentions ASC's as defined for the MSA2012sa */
#define POWER_OR_RESET			0x29
#define STATE_CHANGED			0x2a
#define UNIT_ATTENTION_CLEARED		0x2f
#define LUN_FAILED			0x3e
#define REPORT_LUNS_CHANGED		0x3f

/* Unit Attentions ASCQ's as defined for the MSA2012sa */

	/* These ASCQ's defined for ASC = POWER_OR_RESET */
#define POWER_ON_RESET			0x00
#define POWER_ON_REBOOT			0x01
#define SCSI_BUS_RESET			0x02
#define MSA_TARGET_RESET		0x03
#define CONTROLLER_FAILOVER		0x04
#define TRANSCEIVER_SE			0x05
#define TRANSCEIVER_LVD			0x06

	/* These ASCQ's defined for ASC = STATE_CHANGED */
#define RESERVATION_PREEMPTED		0x03
#define ASYM_ACCESS_CHANGED		0x06
#define LUN_CAPACITY_CHANGED		0x09

/* transfer direction */
#define XFER_NONE               0x00
#define XFER_WRITE              0x01
#define XFER_READ               0x02
#define XFER_RSVD               0x03

/* task attribute */
#define ATTR_UNTAGGED           0x00
#define ATTR_SIMPLE             0x04
#define ATTR_HEADOFQUEUE        0x05
#define ATTR_ORDERED            0x06
#define ATTR_ACA                0x07

/* cdb type */
#define TYPE_CMD				0x00
#define TYPE_MSG				0x01

/* Message Types  */
#define HPSA_TASK_MANAGEMENT    0x00
#define HPSA_RESET              0x01
#define HPSA_SCAN               0x02
#define HPSA_NOOP               0x03

#define HPSA_CTLR_RESET_TYPE    0x00
#define HPSA_BUS_RESET_TYPE     0x01
#define HPSA_TARGET_RESET_TYPE  0x03
#define HPSA_LUN_RESET_TYPE     0x04
#define HPSA_NEXUS_RESET_TYPE   0x05

/* Task Management Functions */
#define HPSA_TMF_ABORT_TASK     0x00
#define HPSA_TMF_ABORT_TASK_SET 0x01
#define HPSA_TMF_CLEAR_ACA      0x02
#define HPSA_TMF_CLEAR_TASK_SET 0x03
#define HPSA_TMF_QUERY_TASK     0x04
#define HPSA_TMF_QUERY_TASK_SET 0x05
#define HPSA_TMF_QUERY_ASYNCEVENT 0x06


/* config space register offsets */
#define CFG_VENDORID            0x00
#define CFG_DEVICEID            0x02
#define CFG_I2OBAR              0x10
#define CFG_MEM1BAR             0x14

/* i2o space register offsets */
#define I2O_IBDB_SET            0x20
#define I2O_IBDB_CLEAR          0x70
#define I2O_INT_STATUS          0x30
#define I2O_INT_MASK            0x34
#define I2O_IBPOST_Q            0x40
#define I2O_OBPOST_Q            0x44
#define I2O_DMA1_CFG		0x214

/* Configuration Table */
#define CFGTBL_ChangeReq        0x00000001l
#define CFGTBL_AccCmds          0x00000001l
#define DOORBELL_CTLR_RESET	0x00000004l
#define DOORBELL_CTLR_RESET2	0x00000020l
#define DOORBELL_CLEAR_EVENTS	0x00000040l

#define CFGTBL_Trans_Simple     0x00000002l
#define CFGTBL_Trans_Performant 0x00000004l
#define CFGTBL_Trans_io_accel1	0x00000080l
#define CFGTBL_Trans_use_short_tags 0x20000000l
#define CFGTBL_Trans_enable_directed_msix (1 << 30)

#define CFGTBL_BusType_Ultra2   0x00000001l
#define CFGTBL_BusType_Ultra3   0x00000002l
#define CFGTBL_BusType_Fibre1G  0x00000100l
#define CFGTBL_BusType_Fibre2G  0x00000200l

/* VPD Inquiry types */
#define HPSA_VPD_LV_DEVICE_GEOMETRY     0xC1
#define HPSA_VPD_LV_IOACCEL_STATUS      0xC2

struct vals32 {
	u32   lower;
	u32   upper;
};

union u64bit {
	struct vals32 val32;
	u64 val;
};

/* FIXME this is a per controller value (barf!) */
#define HPSA_MAX_LUN 1024
#define HPSA_MAX_PHYS_LUN 1024
#define MAX_EXT_TARGETS 32
#define HPSA_MAX_DEVICES (HPSA_MAX_PHYS_LUN + HPSA_MAX_LUN + \
	MAX_EXT_TARGETS + 1) /* + 1 is for the controller itself */

/* SCSI-3 Commands */
#pragma pack(1)

#define HPSA_INQUIRY 0x12
struct InquiryData {
	u8 data_byte[36];
};

#define HPSA_REPORT_LOG 0xc2    /* Report Logical LUNs */
#define HPSA_REPORT_PHYS 0xc3   /* Report Physical LUNs */
#define HPSA_REPORT_PHYS_EXTENDED 0x02
#define HPSA_CISS_READ	0xc0	/* CISS Read */
#define HPSA_GET_RAID_MAP 0xc8	/* CISS Get RAID Layout Map */

#define RAID_MAP_MAX_ENTRIES   256

struct raid_map_disk_data {
	u32   ioaccel_handle;         /**< Handle to access this disk via the
					*  I/O accelerator */
	u8    xor_mult[2];            /**< XOR multipliers for this position,
					*  valid for data disks only */
	u8    reserved[2];
};

struct raid_map_data {
	u32   structure_size;		/* Size of entire structure in bytes */
	u32   volume_blk_size;		/* bytes / block in the volume */
	u64   volume_blk_cnt;		/* logical blocks on the volume */
	u8    phys_blk_shift;		/* Shift factor to convert between
					 * units of logical blocks and physical
					 * disk blocks */
	u8    parity_rotation_shift;	/* Shift factor to convert between units
					 * of logical stripes and physical
					 * stripes */
	u16   strip_size;		/* blocks used on each disk / stripe */
	u64   disk_starting_blk;	/* First disk block used in volume */
	u64   disk_blk_cnt;		/* disk blocks used by volume / disk */
	u16   data_disks_per_row;	/* data disk entries / row in the map */
	u16   metadata_disks_per_row;	/* mirror/parity disk entries / row
					 * in the map */
	u16   row_cnt;			/* rows in each layout map */
	u16   layout_map_count;		/* layout maps (1 map per mirror/parity
					 * group) */
	u8    reserved[20];
	struct raid_map_disk_data data[RAID_MAP_MAX_ENTRIES];
};

struct ReportLUNdata {
	u8 LUNListLength[4];
	u8 extended_response_flag;
	u8 reserved[3];
	u8 LUN[HPSA_MAX_LUN][8];
};

struct ReportExtendedLUNdata {
	u8 LUNListLength[4];
	u8 extended_response_flag;
	u8 reserved[3];
	u8 LUN[HPSA_MAX_LUN][24];
};

struct SenseSubsystem_info {
	u8 reserved[36];
	u8 portname[8];
	u8 reserved1[1108];
};

/* BMIC commands */
#define BMIC_READ 0x26
#define BMIC_WRITE 0x27
#define BMIC_CACHE_FLUSH 0xc2
#define HPSA_CACHE_FLUSH 0x01	/* C2 was already being used by HPSA */
#define BMIC_FLASH_FIRMWARE 0xF7

/* Command List Structure */
union SCSI3Addr {
	struct {
		u8 Dev;
		u8 Bus:6;
		u8 Mode:2;        /* b00 */
	} PeripDev;
	struct {
		u8 DevLSB;
		u8 DevMSB:6;
		u8 Mode:2;        /* b01 */
	} LogDev;
	struct {
		u8 Dev:5;
		u8 Bus:3;
		u8 Targ:6;
		u8 Mode:2;        /* b10 */
	} LogUnit;
};

struct PhysDevAddr {
	u32             TargetId:24;
	u32             Bus:6;
	u32             Mode:2;
	/* 2 level target device addr */
	union SCSI3Addr  Target[2];
};

struct LogDevAddr {
	u32            VolId:30;
	u32            Mode:2;
	u8             reserved[4];
};

union LUNAddr {
	u8               LunAddrBytes[8];
	union SCSI3Addr    SCSI3Lun[4];
	struct PhysDevAddr PhysDev;
	struct LogDevAddr  LogDev;
};

struct CommandListHeader {
	u8              ReplyQueue;
	u8              SGList;
	u16             SGTotal;
	struct vals32     Tag;
	union LUNAddr     LUN;
};

struct RequestBlock {
	u8   CDBLen;
	struct {
		u8 Type:3;
		u8 Attribute:3;
		u8 Direction:2;
	} Type;
	u16  Timeout;
	u8   CDB[16];
};

struct ErrDescriptor {
	struct vals32 Addr;
	u32  Len;
};

struct SGDescriptor {
	struct vals32 Addr;
	u32  Len;
	u32  Ext;
};

union MoreErrInfo {
	struct {
		u8  Reserved[3];
		u8  Type;
		u32 ErrorInfo;
	} Common_Info;
	struct {
		u8  Reserved[2];
		u8  offense_size; /* size of offending entry */
		u8  offense_num;  /* byte # of offense 0-base */
		u32 offense_value;
	} Invalid_Cmd;
};
struct ErrorInfo {
	u8               ScsiStatus;
	u8               SenseLen;
	u16              CommandStatus;
	u32              ResidualCnt;
	union MoreErrInfo  MoreErrInfo;
	u8               SenseInfo[SENSEINFOBYTES];
};
/* Command types */
#define CMD_IOCTL_PEND  0x01
#define CMD_SCSI	0x03
#define CMD_IOACCEL1	0x04
#define CMD_IOACCEL2	0x05

#define DIRECT_LOOKUP_SHIFT 5
#define DIRECT_LOOKUP_BIT 0x10
#define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))

#define HPSA_ERROR_BIT          0x02
struct ctlr_info; /* defined in hpsa.h */
/* The size of this structure needs to be divisible by 32
 * on all architectures because low 5 bits of the addresses
 * are used as follows:
 *
 * bit 0: to device, used to indicate "performant mode" command
 *        from device, indidcates error status.
 * bit 1-3: to device, indicates block fetch table entry for
 *          reducing DMA in fetching commands from host memory.
 * bit 4: used to indicate whether tag is "direct lookup" (index),
 *        or a bus address.
 */

struct CommandList {
	struct CommandListHeader Header;
	struct RequestBlock      Request;
	struct ErrDescriptor     ErrDesc;
	struct SGDescriptor      SG[SG_ENTRIES_IN_CMD];
	/* information associated with the command */
	u32			   busaddr; /* physical addr of this record */
	struct ErrorInfo *err_info; /* pointer to the allocated mem */
	struct ctlr_info	   *h;
	int			   cmd_type;
	long			   cmdindex;
	struct list_head list;
	struct request *rq;
	struct completion *waiting;
	void   *scsi_cmd;

/* on 64 bit architectures, to get this to be 32-byte-aligned
 * it so happens we need PAD_64 bytes of padding, on 32 bit systems,
 * we need PAD_32 bytes of padding (see below).   This does that.
 * If it happens that 64 bit and 32 bit systems need different
 * padding, PAD_32 and PAD_64 can be set independently, and.
 * the code below will do the right thing.
 */
#define IS_32_BIT ((8 - sizeof(long))/4)
#define IS_64_BIT (!IS_32_BIT)
#define PAD_32 (36)
#define PAD_64 (4)
#define COMMANDLIST_PAD (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64)
	u8 pad[COMMANDLIST_PAD];
};

/* Max S/G elements in I/O accelerator command */
#define IOACCEL1_MAXSGENTRIES           24
#define IOACCEL2_MAXSGENTRIES		28

/*
 * Structure for I/O accelerator (mode 1) commands.
 * Note that this structure must be 128-byte aligned in size.
 */
struct io_accel1_cmd {
	u16 dev_handle;			/* 0x00 - 0x01 */
	u8  reserved1;			/* 0x02 */
	u8  function;			/* 0x03 */
	u8  reserved2[8];		/* 0x04 - 0x0B */
	u32 err_info;			/* 0x0C - 0x0F */
	u8  reserved3[2];		/* 0x10 - 0x11 */
	u8  err_info_len;		/* 0x12 */
	u8  reserved4;			/* 0x13 */
	u8  sgl_offset;			/* 0x14 */
	u8  reserved5[7];		/* 0x15 - 0x1B */
	u32 transfer_len;		/* 0x1C - 0x1F */
	u8  reserved6[4];		/* 0x20 - 0x23 */
	u16 io_flags;			/* 0x24 - 0x25 */
	u8  reserved7[14];		/* 0x26 - 0x33 */
	u8  LUN[8];			/* 0x34 - 0x3B */
	u32 control;			/* 0x3C - 0x3F */
	u8  CDB[16];			/* 0x40 - 0x4F */
	u8  reserved8[16];		/* 0x50 - 0x5F */
	u16 host_context_flags;		/* 0x60 - 0x61 */
	u16 timeout_sec;		/* 0x62 - 0x63 */
	u8  ReplyQueue;			/* 0x64 */
	u8  reserved9[3];		/* 0x65 - 0x67 */
	struct vals32 Tag;		/* 0x68 - 0x6F */
	struct vals32 host_addr;	/* 0x70 - 0x77 */
	u8  CISS_LUN[8];		/* 0x78 - 0x7F */
	struct SGDescriptor SG[IOACCEL1_MAXSGENTRIES];
#define IOACCEL1_PAD_64 0
#define IOACCEL1_PAD_32 0
#define IOACCEL1_PAD (IS_32_BIT * IOACCEL1_PAD_32 + \
			IS_64_BIT * IOACCEL1_PAD_64)
	u8 pad[IOACCEL1_PAD];
};

#define IOACCEL1_FUNCTION_SCSIIO        0x00
#define IOACCEL1_SGLOFFSET              32

#define IOACCEL1_IOFLAGS_IO_REQ         0x4000
#define IOACCEL1_IOFLAGS_CDBLEN_MASK    0x001F
#define IOACCEL1_IOFLAGS_CDBLEN_MAX     16

#define IOACCEL1_CONTROL_NODATAXFER     0x00000000
#define IOACCEL1_CONTROL_DATA_OUT       0x01000000
#define IOACCEL1_CONTROL_DATA_IN        0x02000000
#define IOACCEL1_CONTROL_TASKPRIO_MASK  0x00007800
#define IOACCEL1_CONTROL_TASKPRIO_SHIFT 11
#define IOACCEL1_CONTROL_SIMPLEQUEUE    0x00000000
#define IOACCEL1_CONTROL_HEADOFQUEUE    0x00000100
#define IOACCEL1_CONTROL_ORDEREDQUEUE   0x00000200
#define IOACCEL1_CONTROL_ACA            0x00000400

#define IOACCEL1_HCFLAGS_CISS_FORMAT    0x0013

#define IOACCEL1_BUSADDR_CMDTYPE        0x00000060

struct ioaccel2_sg_element {
	u64 address;
	u32 length;
	u8 reserved[3];
	u8 chain_indicator;
#define IOACCEL2_CHAIN 0x80
};

/*
 * SCSI Response Format structure for IO Accelerator Mode 2
 */
struct io_accel2_scsi_response {
	u8 IU_type;
#define IOACCEL2_IU_TYPE_SRF			0x60
	u8 reserved1[3];
	u8 req_id[4];		/* request identifier */
	u8 reserved2[4];
	u8 serv_response;		/* service response */
#define IOACCEL2_SERV_RESPONSE_COMPLETE		0x000
#define IOACCEL2_SERV_RESPONSE_FAILURE		0x001
#define IOACCEL2_SERV_RESPONSE_TMF_COMPLETE	0x002
#define IOACCEL2_SERV_RESPONSE_TMF_SUCCESS	0x003
#define IOACCEL2_SERV_RESPONSE_TMF_REJECTED	0x004
#define IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN	0x005
	u8 status;			/* status */
#define IOACCEL2_STATUS_SR_TASK_COMP_GOOD	0x00
#define IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND	0x02
#define IOACCEL2_STATUS_SR_TASK_COMP_BUSY	0x08
#define IOACCEL2_STATUS_SR_TASK_COMP_RES_CON	0x18
#define IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL	0x28
#define IOACCEL2_STATUS_SR_TASK_COMP_ABORTED	0x40
	u8 data_present;		/* low 2 bits */
#define IOACCEL2_NO_DATAPRESENT		0x000
#define IOACCEL2_RESPONSE_DATAPRESENT	0x001
#define IOACCEL2_SENSE_DATA_PRESENT	0x002
#define IOACCEL2_RESERVED		0x003
	u8 sense_data_len;		/* sense/response data length */
	u8 resid_cnt[4];		/* residual count */
	u8 sense_data_buff[32];		/* sense/response data buffer */
};

#define IOACCEL2_64_PAD 76
#define IOACCEL2_32_PAD 76
#define IOACCEL2_PAD (IS_32_BIT * IOACCEL2_32_PAD + \
			IS_64_BIT * IOACCEL2_64_PAD)
/*
 * Structure for I/O accelerator (mode 2 or m2) commands.
 * Note that this structure must be 128-byte aligned in size.
 */
struct io_accel2_cmd {
	u8  IU_type;			/* IU Type */
	u8  direction;                  /* Transfer direction, 2 bits */
	u8  reply_queue;		/* Reply Queue ID */
	u8  reserved1;			/* Reserved */
	u32 scsi_nexus;			/* Device Handle */
	struct vals32 Tag;		/* cciss tag */
	u8  cdb[16];			/* SCSI Command Descriptor Block */
	u8  cciss_lun[8];		/* 8 byte SCSI address */
	u32 data_len;			/* Total bytes to transfer */
	u8  cmd_priority_task_attr;	/* priority and task attrs */
#define IOACCEL2_PRIORITY_MASK 0x78
#define IOACCEL2_ATTR_MASK 0x07
	u8  sg_count;			/* Number of sg elements */
	u8  reserved3[2];		/* Reserved */
	u64 err_ptr;			/* Error Pointer */
	u32 err_len;			/* Error Length*/
	u8 reserved4[4];		/* Reserved */
	struct ioaccel2_sg_element sg[IOACCEL2_MAXSGENTRIES];
	struct io_accel2_scsi_response error_data;
	u8 pad[IOACCEL2_PAD];
};

/*
 * defines for Mode 2 command struct
 * FIXME: this can't be all I need mfm
 */
#define IOACCEL2_IU_TYPE	0x40
#define IU_TYPE_TMF		0x41
#define IOACCEL2_DIR_NO_DATA	0x00
#define IOACCEL2_DIR_DATA_IN	0x01
#define IOACCEL2_DIR_DATA_OUT	0x02
/*
 * SCSI Task Management Request format for Accelerator Mode 2
 */
struct hpsa_tmf_struct {
	u8 iu_type;		/* Information Unit Type */
	u8 reply_queue;		/* Reply Queue ID */
	u8 tmf;			/* Task Management Function */
	u8 reserved1;		/* byte 3 Reserved */
	u32 it_nexus;		/* SCSI I-T Nexus */
	u8 lun_id[8];		/* LUN ID for TMF request */
	struct vals32 Tag;	/* cciss tag associated w/ request */
	struct vals32 abort_tag;/* cciss tag of SCSI cmd or task to abort */
	u64 error_ptr;		/* Error Pointer */
	u32 error_len;		/* Error Length */
};

/* Configuration Table Structure */
struct HostWrite {
	u32 TransportRequest;
	u32 Reserved;
	u32 CoalIntDelay;
	u32 CoalIntCount;
};

#define SIMPLE_MODE     0x02
#define PERFORMANT_MODE 0x04
#define MEMQ_MODE       0x08
#define IOACCEL_MODE_1  0x80

#define DRIVER_SUPPORT_UA_ENABLE        0x00000001

struct CfgTable {
	u8            Signature[4];
	u32		SpecValence;
	u32           TransportSupport;
	u32           TransportActive;
	struct 		HostWrite HostWrite;
	u32           CmdsOutMax;
	u32           BusTypes;
	u32           TransMethodOffset;
	u8            ServerName[16];
	u32           HeartBeat;
	u32           driver_support;
#define			ENABLE_SCSI_PREFETCH 0x100
#define			ENABLE_UNIT_ATTN 0x01
	u32	 	MaxScatterGatherElements;
	u32		MaxLogicalUnits;
	u32		MaxPhysicalDevices;
	u32		MaxPhysicalDrivesPerLogicalUnit;
	u32		MaxPerformantModeCommands;
	u32		MaxBlockFetch;
	u32		PowerConservationSupport;
	u32		PowerConservationEnable;
	u32		TMFSupportFlags;
	u8		TMFTagMask[8];
	u8		reserved[0x78 - 0x70];
	u32		misc_fw_support; /* offset 0x78 */
#define			MISC_FW_DOORBELL_RESET (0x02)
#define			MISC_FW_DOORBELL_RESET2 (0x010)
#define			MISC_FW_RAID_OFFLOAD_BASIC (0x020)
#define			MISC_FW_EVENT_NOTIFY (0x080)
	u8		driver_version[32];
	u32             max_cached_write_size;
	u8              driver_scratchpad[16];
	u32             max_error_info_length;
	u32		io_accel_max_embedded_sg_count;
	u32		io_accel_request_size_offset;
	u32		event_notify;
#define HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE (1 << 30)
#define HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE (1 << 31)
	u32		clear_event_notify;
};

#define NUM_BLOCKFETCH_ENTRIES 8
struct TransTable_struct {
	u32            BlockFetch[NUM_BLOCKFETCH_ENTRIES];
	u32            RepQSize;
	u32            RepQCount;
	u32            RepQCtrAddrLow32;
	u32            RepQCtrAddrHigh32;
#define MAX_REPLY_QUEUES 8
	struct vals32  RepQAddr[MAX_REPLY_QUEUES];
};

struct hpsa_pci_info {
	unsigned char	bus;
	unsigned char	dev_fn;
	unsigned short	domain;
	u32		board_id;
};

#pragma pack()
#endif /* HPSA_CMD_H */
Commit	Line	Data
edd16368 SC	1	/*
	2	* Disk Array driver for HP Smart Array SAS controllers
	3	* Copyright 2000, 2009 Hewlett-Packard Development Company, L.P.
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; version 2 of the License.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
	12	* NON INFRINGEMENT. See the GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	17	*
	18	* Questions/Comments/Bugfixes to iss_storagedev@hp.com
	19	*
	20	*/
	21	#ifndef HPSA_CMD_H
	22	#define HPSA_CMD_H
	23
	24	/* general boundary defintions */
	25	#define SENSEINFOBYTES 32 /* may vary between hbas */
d66ae08b	26	#define SG_ENTRIES_IN_CMD 32 /* Max SG entries excluding chain blocks */
33a2ffce	27	#define HPSA_SG_CHAIN 0x80000000
e1d9cbfa	28	#define HPSA_SG_LAST 0x40000000
edd16368 SC	29	#define MAXREPLYQS 256
	30
	31	/* Command Status value */
	32	#define CMD_SUCCESS 0x0000
	33	#define CMD_TARGET_STATUS 0x0001
	34	#define CMD_DATA_UNDERRUN 0x0002
	35	#define CMD_DATA_OVERRUN 0x0003
	36	#define CMD_INVALID 0x0004
	37	#define CMD_PROTOCOL_ERR 0x0005
	38	#define CMD_HARDWARE_ERR 0x0006
	39	#define CMD_CONNECTION_LOST 0x0007
	40	#define CMD_ABORTED 0x0008
	41	#define CMD_ABORT_FAILED 0x0009
	42	#define CMD_UNSOLICITED_ABORT 0x000A
	43	#define CMD_TIMEOUT 0x000B
	44	#define CMD_UNABORTABLE 0x000C
283b4a9b SC	45	#define CMD_IOACCEL_DISABLED 0x000E
283b4a9b SC	46
edd16368 SC	47
	48	/* Unit Attentions ASC's as defined for the MSA2012sa */
	49	#define POWER_OR_RESET 0x29
	50	#define STATE_CHANGED 0x2a
	51	#define UNIT_ATTENTION_CLEARED 0x2f
	52	#define LUN_FAILED 0x3e
	53	#define REPORT_LUNS_CHANGED 0x3f
	54
	55	/* Unit Attentions ASCQ's as defined for the MSA2012sa */
	56
	57	/* These ASCQ's defined for ASC = POWER_OR_RESET */
	58	#define POWER_ON_RESET 0x00
	59	#define POWER_ON_REBOOT 0x01
	60	#define SCSI_BUS_RESET 0x02
	61	#define MSA_TARGET_RESET 0x03
	62	#define CONTROLLER_FAILOVER 0x04
	63	#define TRANSCEIVER_SE 0x05
	64	#define TRANSCEIVER_LVD 0x06
	65
	66	/* These ASCQ's defined for ASC = STATE_CHANGED */
	67	#define RESERVATION_PREEMPTED 0x03
	68	#define ASYM_ACCESS_CHANGED 0x06
	69	#define LUN_CAPACITY_CHANGED 0x09
	70
	71	/* transfer direction */
	72	#define XFER_NONE 0x00
	73	#define XFER_WRITE 0x01
	74	#define XFER_READ 0x02
	75	#define XFER_RSVD 0x03
	76
	77	/* task attribute */
	78	#define ATTR_UNTAGGED 0x00
	79	#define ATTR_SIMPLE 0x04
	80	#define ATTR_HEADOFQUEUE 0x05
	81	#define ATTR_ORDERED 0x06
	82	#define ATTR_ACA 0x07
	83
	84	/* cdb type */
	85	#define TYPE_CMD 0x00
	86	#define TYPE_MSG 0x01
	87
75167d2c SC	88	/* Message Types */
	89	#define HPSA_TASK_MANAGEMENT 0x00
	90	#define HPSA_RESET 0x01
	91	#define HPSA_SCAN 0x02
	92	#define HPSA_NOOP 0x03
	93
	94	#define HPSA_CTLR_RESET_TYPE 0x00
	95	#define HPSA_BUS_RESET_TYPE 0x01
	96	#define HPSA_TARGET_RESET_TYPE 0x03
	97	#define HPSA_LUN_RESET_TYPE 0x04
	98	#define HPSA_NEXUS_RESET_TYPE 0x05
	99
	100	/* Task Management Functions */
	101	#define HPSA_TMF_ABORT_TASK 0x00
	102	#define HPSA_TMF_ABORT_TASK_SET 0x01
	103	#define HPSA_TMF_CLEAR_ACA 0x02
	104	#define HPSA_TMF_CLEAR_TASK_SET 0x03
	105	#define HPSA_TMF_QUERY_TASK 0x04
	106	#define HPSA_TMF_QUERY_TASK_SET 0x05
	107	#define HPSA_TMF_QUERY_ASYNCEVENT 0x06
	108
	109
	110
edd16368 SC	111	/* config space register offsets */
	112	#define CFG_VENDORID 0x00
	113	#define CFG_DEVICEID 0x02
	114	#define CFG_I2OBAR 0x10
	115	#define CFG_MEM1BAR 0x14
	116
	117	/* i2o space register offsets */
	118	#define I2O_IBDB_SET 0x20
	119	#define I2O_IBDB_CLEAR 0x70
	120	#define I2O_INT_STATUS 0x30
	121	#define I2O_INT_MASK 0x34
	122	#define I2O_IBPOST_Q 0x40
	123	#define I2O_OBPOST_Q 0x44
	124	#define I2O_DMA1_CFG 0x214
	125
	126	/* Configuration Table */
	127	#define CFGTBL_ChangeReq 0x00000001l
	128	#define CFGTBL_AccCmds 0x00000001l
1df8552a	129	#define DOORBELL_CTLR_RESET 0x00000004l
cf0b08d0	130	#define DOORBELL_CTLR_RESET2 0x00000020l
76438d08	131	#define DOORBELL_CLEAR_EVENTS 0x00000040l
edd16368 SC	132
edd16368 SC	133	#define CFGTBL_Trans_Simple 0x00000002l
303932fd	134	#define CFGTBL_Trans_Performant 0x00000004l
e1f7de0c	135	#define CFGTBL_Trans_io_accel1 0x00000080l
960a30e7	136	#define CFGTBL_Trans_use_short_tags 0x20000000l
254f796b	137	#define CFGTBL_Trans_enable_directed_msix (1 << 30)
edd16368 SC	138
	139	#define CFGTBL_BusType_Ultra2 0x00000001l
	140	#define CFGTBL_BusType_Ultra3 0x00000002l
	141	#define CFGTBL_BusType_Fibre1G 0x00000100l
	142	#define CFGTBL_BusType_Fibre2G 0x00000200l
283b4a9b SC	143
	144	/* VPD Inquiry types */
	145	#define HPSA_VPD_LV_DEVICE_GEOMETRY 0xC1
	146	#define HPSA_VPD_LV_IOACCEL_STATUS 0xC2
	147
edd16368	148	struct vals32 {
01a02ffc SC	149	u32 lower;
01a02ffc SC	150	u32 upper;
edd16368 SC	151	};
	152
	153	union u64bit {
	154	struct vals32 val32;
01a02ffc	155	u64 val;
edd16368 SC	156	};
	157
	158	/* FIXME this is a per controller value (barf!) */
b7ec021f	159	#define HPSA_MAX_LUN 1024
edd16368	160	#define HPSA_MAX_PHYS_LUN 1024
aca4a520	161	#define MAX_EXT_TARGETS 32
b7ec021f	162	#define HPSA_MAX_DEVICES (HPSA_MAX_PHYS_LUN + HPSA_MAX_LUN + \
aca4a520	163	MAX_EXT_TARGETS + 1) /* + 1 is for the controller itself */
edd16368 SC	164
	165	/* SCSI-3 Commands */
	166	#pragma pack(1)
	167
	168	#define HPSA_INQUIRY 0x12
	169	struct InquiryData {
01a02ffc	170	u8 data_byte[36];
edd16368 SC	171	};
	172
	173	#define HPSA_REPORT_LOG 0xc2 /* Report Logical LUNs */
	174	#define HPSA_REPORT_PHYS 0xc3 /* Report Physical LUNs */
a93aa1fe	175	#define HPSA_REPORT_PHYS_EXTENDED 0x02
283b4a9b SC	176	#define HPSA_CISS_READ 0xc0 /* CISS Read */
	177	#define HPSA_GET_RAID_MAP 0xc8 /* CISS Get RAID Layout Map */
	178
	179	#define RAID_MAP_MAX_ENTRIES 256
	180
	181	struct raid_map_disk_data {
	182	u32 ioaccel_handle; /**< Handle to access this disk via the
	183	* I/O accelerator */
	184	u8 xor_mult[2]; /**< XOR multipliers for this position,
	185	* valid for data disks only */
	186	u8 reserved[2];
	187	};
	188
	189	struct raid_map_data {
	190	u32 structure_size; /* Size of entire structure in bytes */
	191	u32 volume_blk_size; /* bytes / block in the volume */
	192	u64 volume_blk_cnt; /* logical blocks on the volume */
	193	u8 phys_blk_shift; /* Shift factor to convert between
	194	* units of logical blocks and physical
	195	* disk blocks */
	196	u8 parity_rotation_shift; /* Shift factor to convert between units
	197	* of logical stripes and physical
	198	* stripes */
	199	u16 strip_size; /* blocks used on each disk / stripe */
	200	u64 disk_starting_blk; /* First disk block used in volume */
	201	u64 disk_blk_cnt; /* disk blocks used by volume / disk */
	202	u16 data_disks_per_row; /* data disk entries / row in the map */
	203	u16 metadata_disks_per_row; /* mirror/parity disk entries / row
	204	* in the map */
	205	u16 row_cnt; /* rows in each layout map */
	206	u16 layout_map_count; /* layout maps (1 map per mirror/parity
	207	* group) */
	208	u8 reserved[20];
	209	struct raid_map_disk_data data[RAID_MAP_MAX_ENTRIES];
	210	};
	211
edd16368	212	struct ReportLUNdata {
01a02ffc	213	u8 LUNListLength[4];
283b4a9b SC	214	u8 extended_response_flag;
283b4a9b SC	215	u8 reserved[3];
01a02ffc	216	u8 LUN[HPSA_MAX_LUN][8];
edd16368 SC	217	};
	218
	219	struct ReportExtendedLUNdata {
01a02ffc SC	220	u8 LUNListLength[4];
	221	u8 extended_response_flag;
	222	u8 reserved[3];
	223	u8 LUN[HPSA_MAX_LUN][24];
edd16368 SC	224	};
	225
	226	struct SenseSubsystem_info {
01a02ffc SC	227	u8 reserved[36];
	228	u8 portname[8];
	229	u8 reserved1[1108];
edd16368 SC	230	};
edd16368 SC	231
edd16368 SC	232	/* BMIC commands */
	233	#define BMIC_READ 0x26
	234	#define BMIC_WRITE 0x27
	235	#define BMIC_CACHE_FLUSH 0xc2
	236	#define HPSA_CACHE_FLUSH 0x01 /* C2 was already being used by HPSA */
e85c5974	237	#define BMIC_FLASH_FIRMWARE 0xF7
edd16368 SC	238
	239	/* Command List Structure */
	240	union SCSI3Addr {
	241	struct {
01a02ffc SC	242	u8 Dev;
	243	u8 Bus:6;
	244	u8 Mode:2; /* b00 */
edd16368 SC	245	} PeripDev;
edd16368 SC	246	struct {
01a02ffc SC	247	u8 DevLSB;
	248	u8 DevMSB:6;
	249	u8 Mode:2; /* b01 */
edd16368 SC	250	} LogDev;
edd16368 SC	251	struct {
01a02ffc SC	252	u8 Dev:5;
	253	u8 Bus:3;
	254	u8 Targ:6;
	255	u8 Mode:2; /* b10 */
edd16368 SC	256	} LogUnit;
	257	};
	258
	259	struct PhysDevAddr {
01a02ffc SC	260	u32 TargetId:24;
	261	u32 Bus:6;
	262	u32 Mode:2;
edd16368 SC	263	/* 2 level target device addr */
	264	union SCSI3Addr Target[2];
	265	};
	266
	267	struct LogDevAddr {
01a02ffc SC	268	u32 VolId:30;
	269	u32 Mode:2;
	270	u8 reserved[4];
edd16368 SC	271	};
	272
	273	union LUNAddr {
01a02ffc	274	u8 LunAddrBytes[8];
edd16368 SC	275	union SCSI3Addr SCSI3Lun[4];
	276	struct PhysDevAddr PhysDev;
	277	struct LogDevAddr LogDev;
	278	};
	279
	280	struct CommandListHeader {
01a02ffc SC	281	u8 ReplyQueue;
	282	u8 SGList;
	283	u16 SGTotal;
edd16368 SC	284	struct vals32 Tag;
	285	union LUNAddr LUN;
	286	};
	287
	288	struct RequestBlock {
01a02ffc	289	u8 CDBLen;
edd16368	290	struct {
01a02ffc SC	291	u8 Type:3;
	292	u8 Attribute:3;
	293	u8 Direction:2;
edd16368	294	} Type;
01a02ffc SC	295	u16 Timeout;
01a02ffc SC	296	u8 CDB[16];
edd16368 SC	297	};
	298
	299	struct ErrDescriptor {
	300	struct vals32 Addr;
01a02ffc	301	u32 Len;
edd16368 SC	302	};
	303
	304	struct SGDescriptor {
	305	struct vals32 Addr;
01a02ffc SC	306	u32 Len;
01a02ffc SC	307	u32 Ext;
edd16368 SC	308	};
	309
	310	union MoreErrInfo {
	311	struct {
01a02ffc SC	312	u8 Reserved[3];
	313	u8 Type;
	314	u32 ErrorInfo;
edd16368 SC	315	} Common_Info;
edd16368 SC	316	struct {
01a02ffc SC	317	u8 Reserved[2];
	318	u8 offense_size; /* size of offending entry */
	319	u8 offense_num; /* byte # of offense 0-base */
	320	u32 offense_value;
edd16368 SC	321	} Invalid_Cmd;
	322	};
	323	struct ErrorInfo {
01a02ffc SC	324	u8 ScsiStatus;
	325	u8 SenseLen;
	326	u16 CommandStatus;
	327	u32 ResidualCnt;
edd16368	328	union MoreErrInfo MoreErrInfo;
01a02ffc	329	u8 SenseInfo[SENSEINFOBYTES];
edd16368 SC	330	};
	331	/* Command types */
	332	#define CMD_IOCTL_PEND 0x01
	333	#define CMD_SCSI 0x03
e1f7de0c	334	#define CMD_IOACCEL1 0x04
b66cc250	335	#define CMD_IOACCEL2 0x05
edd16368	336
303932fd DB	337	#define DIRECT_LOOKUP_SHIFT 5
303932fd DB	338	#define DIRECT_LOOKUP_BIT 0x10
d896f3f3	339	#define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))
303932fd DB	340
303932fd DB	341	#define HPSA_ERROR_BIT 0x02
edd16368	342	struct ctlr_info; /* defined in hpsa.h */
303932fd DB	343	/* The size of this structure needs to be divisible by 32
	344	* on all architectures because low 5 bits of the addresses
	345	* are used as follows:
	346	*
	347	* bit 0: to device, used to indicate "performant mode" command
	348	* from device, indidcates error status.
	349	* bit 1-3: to device, indicates block fetch table entry for
	350	* reducing DMA in fetching commands from host memory.
	351	* bit 4: used to indicate whether tag is "direct lookup" (index),
	352	* or a bus address.
edd16368	353	*/
303932fd	354
edd16368 SC	355	struct CommandList {
	356	struct CommandListHeader Header;
	357	struct RequestBlock Request;
	358	struct ErrDescriptor ErrDesc;
d66ae08b	359	struct SGDescriptor SG[SG_ENTRIES_IN_CMD];
edd16368	360	/* information associated with the command */
01a02ffc	361	u32 busaddr; /* physical addr of this record */
edd16368 SC	362	struct ErrorInfo err_info; / pointer to the allocated mem */
	363	struct ctlr_info *h;
	364	int cmd_type;
	365	long cmdindex;
9e0fc764	366	struct list_head list;
edd16368 SC	367	struct request *rq;
edd16368 SC	368	struct completion *waiting;
edd16368	369	void *scsi_cmd;
303932fd DB	370
303932fd DB	371	/* on 64 bit architectures, to get this to be 32-byte-aligned
db61bfcf SC	372	* it so happens we need PAD_64 bytes of padding, on 32 bit systems,
	373	* we need PAD_32 bytes of padding (see below). This does that.
	374	* If it happens that 64 bit and 32 bit systems need different
	375	* padding, PAD_32 and PAD_64 can be set independently, and.
	376	* the code below will do the right thing.
303932fd	377	*/
db61bfcf SC	378	#define IS_32_BIT ((8 - sizeof(long))/4)
db61bfcf SC	379	#define IS_64_BIT (!IS_32_BIT)
283b4a9b	380	#define PAD_32 (36)
43aebfa1	381	#define PAD_64 (4)
db61bfcf	382	#define COMMANDLIST_PAD (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64)
303932fd	383	u8 pad[COMMANDLIST_PAD];
edd16368 SC	384	};
edd16368 SC	385
e1f7de0c MG	386	/* Max S/G elements in I/O accelerator command */
e1f7de0c MG	387	#define IOACCEL1_MAXSGENTRIES 24
b66cc250	388	#define IOACCEL2_MAXSGENTRIES 28
e1f7de0c MG	389
	390	/*
	391	* Structure for I/O accelerator (mode 1) commands.
	392	* Note that this structure must be 128-byte aligned in size.
	393	*/
	394	struct io_accel1_cmd {
	395	u16 dev_handle; /* 0x00 - 0x01 */
	396	u8 reserved1; /* 0x02 */
	397	u8 function; /* 0x03 */
	398	u8 reserved2[8]; /* 0x04 - 0x0B */
	399	u32 err_info; /* 0x0C - 0x0F */
	400	u8 reserved3[2]; /* 0x10 - 0x11 */
	401	u8 err_info_len; /* 0x12 */
	402	u8 reserved4; /* 0x13 */
	403	u8 sgl_offset; /* 0x14 */
	404	u8 reserved5[7]; /* 0x15 - 0x1B */
	405	u32 transfer_len; /* 0x1C - 0x1F */
	406	u8 reserved6[4]; /* 0x20 - 0x23 */
	407	u16 io_flags; /* 0x24 - 0x25 */
	408	u8 reserved7[14]; /* 0x26 - 0x33 */
	409	u8 LUN[8]; /* 0x34 - 0x3B */
	410	u32 control; /* 0x3C - 0x3F */
	411	u8 CDB[16]; /* 0x40 - 0x4F */
	412	u8 reserved8[16]; /* 0x50 - 0x5F */
	413	u16 host_context_flags; /* 0x60 - 0x61 */
	414	u16 timeout_sec; /* 0x62 - 0x63 */
	415	u8 ReplyQueue; /* 0x64 */
	416	u8 reserved9[3]; /* 0x65 - 0x67 */
	417	struct vals32 Tag; /* 0x68 - 0x6F */
	418	struct vals32 host_addr; /* 0x70 - 0x77 */
	419	u8 CISS_LUN[8]; /* 0x78 - 0x7F */
	420	struct SGDescriptor SG[IOACCEL1_MAXSGENTRIES];
283b4a9b SC	421	#define IOACCEL1_PAD_64 0
	422	#define IOACCEL1_PAD_32 0
	423	#define IOACCEL1_PAD (IS_32_BIT * IOACCEL1_PAD_32 + \
	424	IS_64_BIT * IOACCEL1_PAD_64)
	425	u8 pad[IOACCEL1_PAD];
e1f7de0c MG	426	};
	427
	428	#define IOACCEL1_FUNCTION_SCSIIO 0x00
	429	#define IOACCEL1_SGLOFFSET 32
	430
	431	#define IOACCEL1_IOFLAGS_IO_REQ 0x4000
	432	#define IOACCEL1_IOFLAGS_CDBLEN_MASK 0x001F
	433	#define IOACCEL1_IOFLAGS_CDBLEN_MAX 16
	434
	435	#define IOACCEL1_CONTROL_NODATAXFER 0x00000000
	436	#define IOACCEL1_CONTROL_DATA_OUT 0x01000000
	437	#define IOACCEL1_CONTROL_DATA_IN 0x02000000
	438	#define IOACCEL1_CONTROL_TASKPRIO_MASK 0x00007800
	439	#define IOACCEL1_CONTROL_TASKPRIO_SHIFT 11
	440	#define IOACCEL1_CONTROL_SIMPLEQUEUE 0x00000000
	441	#define IOACCEL1_CONTROL_HEADOFQUEUE 0x00000100
	442	#define IOACCEL1_CONTROL_ORDEREDQUEUE 0x00000200
	443	#define IOACCEL1_CONTROL_ACA 0x00000400
	444
	445	#define IOACCEL1_HCFLAGS_CISS_FORMAT 0x0013
	446
	447	#define IOACCEL1_BUSADDR_CMDTYPE 0x00000060
	448
b66cc250 MM	449	struct ioaccel2_sg_element {
	450	u64 address;
	451	u32 length;
	452	u8 reserved[3];
	453	u8 chain_indicator;
	454	#define IOACCEL2_CHAIN 0x80
	455	};
	456
	457	/*
	458	* SCSI Response Format structure for IO Accelerator Mode 2
	459	*/
	460	struct io_accel2_scsi_response {
	461	u8 IU_type;
	462	#define IOACCEL2_IU_TYPE_SRF 0x60
	463	u8 reserved1[3];
	464	u8 req_id[4]; /* request identifier */
	465	u8 reserved2[4];
	466	u8 serv_response; /* service response */
	467	#define IOACCEL2_SERV_RESPONSE_COMPLETE 0x000
	468	#define IOACCEL2_SERV_RESPONSE_FAILURE 0x001
	469	#define IOACCEL2_SERV_RESPONSE_TMF_COMPLETE 0x002
	470	#define IOACCEL2_SERV_RESPONSE_TMF_SUCCESS 0x003
	471	#define IOACCEL2_SERV_RESPONSE_TMF_REJECTED 0x004
	472	#define IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN 0x005
	473	u8 status; /* status */
	474	#define IOACCEL2_STATUS_SR_TASK_COMP_GOOD 0x00
	475	#define IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND 0x02
	476	#define IOACCEL2_STATUS_SR_TASK_COMP_BUSY 0x08
	477	#define IOACCEL2_STATUS_SR_TASK_COMP_RES_CON 0x18
	478	#define IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL 0x28
	479	#define IOACCEL2_STATUS_SR_TASK_COMP_ABORTED 0x40
	480	u8 data_present; /* low 2 bits */
	481	#define IOACCEL2_NO_DATAPRESENT 0x000
	482	#define IOACCEL2_RESPONSE_DATAPRESENT 0x001
	483	#define IOACCEL2_SENSE_DATA_PRESENT 0x002
	484	#define IOACCEL2_RESERVED 0x003
	485	u8 sense_data_len; /* sense/response data length */
	486	u8 resid_cnt[4]; /* residual count */
	487	u8 sense_data_buff[32]; /* sense/response data buffer */
	488	};
	489
	490	#define IOACCEL2_64_PAD 76
	491	#define IOACCEL2_32_PAD 76
	492	#define IOACCEL2_PAD (IS_32_BIT * IOACCEL2_32_PAD + \
	493	IS_64_BIT * IOACCEL2_64_PAD)
	494	/*
	495	* Structure for I/O accelerator (mode 2 or m2) commands.
	496	* Note that this structure must be 128-byte aligned in size.
	497	*/
	498	struct io_accel2_cmd {
	499	u8 IU_type; /* IU Type */
	500	u8 direction; /* Transfer direction, 2 bits */
	501	u8 reply_queue; /* Reply Queue ID */
	502	u8 reserved1; /* Reserved */
	503	u32 scsi_nexus; /* Device Handle */
	504	struct vals32 Tag; /* cciss tag */
	505	u8 cdb[16]; /* SCSI Command Descriptor Block */
	506	u8 cciss_lun[8]; /* 8 byte SCSI address */
	507	u32 data_len; /* Total bytes to transfer */
	508	u8 cmd_priority_task_attr; /* priority and task attrs */
	509	#define IOACCEL2_PRIORITY_MASK 0x78
	510	#define IOACCEL2_ATTR_MASK 0x07
	511	u8 sg_count; /* Number of sg elements */
	512	u8 reserved3[2]; /* Reserved */
513	u64 err_ptr; /* Error Pointer */
514	u32 err_len; /* Error Length*/
515	u8 reserved4[4]; /* Reserved */
516	struct ioaccel2_sg_element sg[IOACCEL2_MAXSGENTRIES];
517	struct io_accel2_scsi_response error_data;
518	u8 pad[IOACCEL2_PAD];
519	};
520
521	/*
522	* defines for Mode 2 command struct
523	* FIXME: this can't be all I need mfm
524	*/
525	#define IOACCEL2_IU_TYPE 0x40
526	#define IU_TYPE_TMF 0x41
527	#define IOACCEL2_DIR_NO_DATA 0x00
528	#define IOACCEL2_DIR_DATA_IN 0x01
529	#define IOACCEL2_DIR_DATA_OUT 0x02
530	/*
531	* SCSI Task Management Request format for Accelerator Mode 2
532	*/
533	struct hpsa_tmf_struct {
534	u8 iu_type; /* Information Unit Type */
535	u8 reply_queue; /* Reply Queue ID */
536	u8 tmf; /* Task Management Function */
537	u8 reserved1; /* byte 3 Reserved */
538	u32 it_nexus; /* SCSI I-T Nexus */
539	u8 lun_id[8]; /* LUN ID for TMF request */
540	struct vals32 Tag; /* cciss tag associated w/ request */
541	struct vals32 abort_tag;/* cciss tag of SCSI cmd or task to abort */
542	u64 error_ptr; /* Error Pointer */
543	u32 error_len; /* Error Length */
544	};
545
edd16368 SC	546	/* Configuration Table Structure */
edd16368 SC	547	struct HostWrite {
01a02ffc SC	548	u32 TransportRequest;
	549	u32 Reserved;
	550	u32 CoalIntDelay;
	551	u32 CoalIntCount;
edd16368 SC	552	};
edd16368 SC	553
303932fd DB	554	#define SIMPLE_MODE 0x02
	555	#define PERFORMANT_MODE 0x04
	556	#define MEMQ_MODE 0x08
e1f7de0c	557	#define IOACCEL_MODE_1 0x80
303932fd	558
283b4a9b SC	559	#define DRIVER_SUPPORT_UA_ENABLE 0x00000001
283b4a9b SC	560
edd16368	561	struct CfgTable {
303932fd DB	562	u8 Signature[4];
	563	u32 SpecValence;
	564	u32 TransportSupport;
	565	u32 TransportActive;
	566	struct HostWrite HostWrite;
	567	u32 CmdsOutMax;
	568	u32 BusTypes;
	569	u32 TransMethodOffset;
	570	u8 ServerName[16];
	571	u32 HeartBeat;
97a5e98c SC	572	u32 driver_support;
97a5e98c SC	573	#define ENABLE_SCSI_PREFETCH 0x100
28e13446	574	#define ENABLE_UNIT_ATTN 0x01
303932fd DB	575	u32 MaxScatterGatherElements;
	576	u32 MaxLogicalUnits;
	577	u32 MaxPhysicalDevices;
	578	u32 MaxPhysicalDrivesPerLogicalUnit;
	579	u32 MaxPerformantModeCommands;
75167d2c SC	580	u32 MaxBlockFetch;
	581	u32 PowerConservationSupport;
	582	u32 PowerConservationEnable;
	583	u32 TMFSupportFlags;
	584	u8 TMFTagMask[8];
	585	u8 reserved[0x78 - 0x70];
1df8552a SC	586	u32 misc_fw_support; /* offset 0x78 */
1df8552a SC	587	#define MISC_FW_DOORBELL_RESET (0x02)
cf0b08d0	588	#define MISC_FW_DOORBELL_RESET2 (0x010)
283b4a9b SC	589	#define MISC_FW_RAID_OFFLOAD_BASIC (0x020)
283b4a9b SC	590	#define MISC_FW_EVENT_NOTIFY (0x080)
580ada3c	591	u8 driver_version[32];
283b4a9b SC	592	u32 max_cached_write_size;
	593	u8 driver_scratchpad[16];
	594	u32 max_error_info_length;
	595	u32 io_accel_max_embedded_sg_count;
	596	u32 io_accel_request_size_offset;
	597	u32 event_notify;
76438d08 SC	598	#define HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE (1 << 30)
76438d08 SC	599	#define HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE (1 << 31)
283b4a9b	600	u32 clear_event_notify;
303932fd DB	601	};
	602
	603	#define NUM_BLOCKFETCH_ENTRIES 8
	604	struct TransTable_struct {
	605	u32 BlockFetch[NUM_BLOCKFETCH_ENTRIES];
	606	u32 RepQSize;
	607	u32 RepQCount;
	608	u32 RepQCtrAddrLow32;
	609	u32 RepQCtrAddrHigh32;
254f796b MG	610	#define MAX_REPLY_QUEUES 8
254f796b MG	611	struct vals32 RepQAddr[MAX_REPLY_QUEUES];
edd16368 SC	612	};
	613
	614	struct hpsa_pci_info {
	615	unsigned char bus;
	616	unsigned char dev_fn;
	617	unsigned short domain;
01a02ffc	618	u32 board_id;
edd16368 SC	619	};
	620
	621	#pragma pack()
	622	#endif /* HPSA_CMD_H */