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/*
* ld_pd_map.h
*
* Solaris MegaRAID device driver for SAS2.0 controllers
* Copyright (c) 2008-2012, LSI Logic Corporation.
* All rights reserved.
*
* Version:
* Author:
* Swaminathan K S
* Arun Chandrashekhar
* Manju R
* Rasheed
* Shakeel Bukhari
*/
#ifndef _LD_PD_MAP
#define _LD_PD_MAP
#include <sys/scsi/scsi.h>
#include "fusion.h"
struct mrsas_instance; /* This will be defined in mr_sas.h */
/* raid->write_mode; raid->read_ahead; dcmd->state */
/* Write through */
#define WRITE_THROUGH 0
/* Delayed Write */
#define WRITE_BACK 1
/* SCSI CDB definitions */
#define READ_6 0x08
#define READ_16 0x88
#define READ_10 0x28
#define READ_12 0xA8
#define WRITE_16 0x8A
#define WRITE_10 0x2A
/* maximum disks per array */
#define MAX_ROW_SIZE 32
/* maximum spans per logical drive */
#define MAX_SPAN_DEPTH 8
#define MEGASAS_LOAD_BALANCE_FLAG 0x1
#define MR_DEFAULT_IO_TIMEOUT 20
union desc_value {
U64 word;
struct {
U32 low;
U32 high;
} u1;
};
typedef struct _LD_LOAD_BALANCE_INFO
{
U8 loadBalanceFlag;
U8 reserved1;
U16 raid1DevHandle[2];
U16 scsi_pending_cmds[2];
U64 last_accessed_block[2];
} LD_LOAD_BALANCE_INFO, *PLD_LOAD_BALANCE_INFO;
#pragma pack(1)
typedef struct _MR_FW_RAID_MAP_ALL {
MR_FW_RAID_MAP raidMap;
MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES - 1];
} MR_FW_RAID_MAP_ALL;
/*
* Raid Context structure which describes MegaRAID specific IO Parameters
* This resides at offset 0x60 where the SGL normally starts in MPT IO Frames
*/
typedef struct _MPI2_SCSI_IO_VENDOR_UNIQUE {
U8 nsegType; /* 0x00 nseg[7:4], Type[3:0] */
U8 resvd0; /* 0x01 */
U16 timeoutValue; /* 0x02 -0x03 */
U8 regLockFlags; /* 0x04 */
U8 reservedForHw1; /* 0x05 */
U16 ldTargetId; /* 0x06 - 0x07 */
U64 regLockRowLBA; /* 0x08 - 0x0F */
U32 regLockLength; /* 0x10 - 0x13 */
U16 nextLMId; /* 0x14 - 0x15 */
U8 extStatus; /* 0x16 */
U8 status; /* 0x17 status */
U8 RAIDFlags; /* 0x18 resvd[7:6], ioSubType[5:4], */
/* resvd[3:1], preferredCpu[0] */
U8 numSGE; /* 0x19 numSge; not including chain entries */
U16 configSeqNum; /* 0x1A -0x1B */
U8 spanArm; /* 0x1C span[7:5], arm[4:0] */
U8 resvd2[3]; /* 0x1D-0x1f */
} MPI2_SCSI_IO_VENDOR_UNIQUE, MPI25_SCSI_IO_VENDOR_UNIQUE;
#define RAID_CTX_SPANARM_ARM_SHIFT (0)
#define RAID_CTX_SPANARM_ARM_MASK (0x1f)
#define RAID_CTX_SPANARM_SPAN_SHIFT (5)
#define RAID_CTX_SPANARM_SPAN_MASK (0xE0)
/*
* RAID SCSI IO Request Message
* Total SGE count will be one less
* than _MPI2_SCSI_IO_REQUEST
*/
typedef struct _MPI2_RAID_SCSI_IO_REQUEST
{
uint16_t DevHandle; /* 0x00 */
uint8_t ChainOffset; /* 0x02 */
uint8_t Function; /* 0x03 */
uint16_t Reserved1; /* 0x04 */
uint8_t Reserved2; /* 0x06 */
uint8_t MsgFlags; /* 0x07 */
uint8_t VP_ID; /* 0x08 */
uint8_t VF_ID; /* 0x09 */
uint16_t Reserved3; /* 0x0A */
uint32_t SenseBufferLowAddress; /* 0x0C */
uint16_t SGLFlags; /* 0x10 */
uint8_t SenseBufferLength; /* 0x12 */
uint8_t Reserved4; /* 0x13 */
uint8_t SGLOffset0; /* 0x14 */
uint8_t SGLOffset1; /* 0x15 */
uint8_t SGLOffset2; /* 0x16 */
uint8_t SGLOffset3; /* 0x17 */
uint32_t SkipCount; /* 0x18 */
uint32_t DataLength; /* 0x1C */
uint32_t BidirectionalDataLength; /* 0x20 */
uint16_t IoFlags; /* 0x24 */
uint16_t EEDPFlags; /* 0x26 */
uint32_t EEDPBlockSize; /* 0x28 */
uint32_t SecondaryReferenceTag; /* 0x2C */
uint16_t SecondaryApplicationTag; /* 0x30 */
uint16_t ApplicationTagTranslationMask; /* 0x32 */
uint8_t LUN[8]; /* 0x34 */
uint32_t Control; /* 0x3C */
Mpi2ScsiIoCdb_t CDB; /* 0x40 */
MPI2_SCSI_IO_VENDOR_UNIQUE RaidContext; /* 0x60 */
Mpi2SGEIOUnion_t SGL; /* 0x80 */
} MPI2_RAID_SCSI_IO_REQUEST, MPI2_POINTER PTR_MPI2_RAID_SCSI_IO_REQUEST,
Mpi2RaidSCSIIORequest_t, MPI2_POINTER pMpi2RaidSCSIIORequest_t;
/*
* define region lock types
*/
typedef enum _REGION_TYPE {
REGION_TYPE_UNUSED = 0, /* lock is currently not active */
REGION_TYPE_SHARED_READ = 1, /* shared lock (for reads) */
REGION_TYPE_SHARED_WRITE = 2,
REGION_TYPE_EXCLUSIVE = 3 /* exclusive lock (for writes) */
} REGION_TYPE;
#define DM_PATH_MAXPATH 2
#define DM_PATH_FIRSTPATH 0
#define DM_PATH_SECONDPATH 1
/* declare valid Region locking values */
typedef enum _REGION_LOCK {
REGION_LOCK_BYPASS = 0,
/* for RAID 6 single-drive failure */
REGION_LOCK_UNCOND_SHARED_READ = 1,
REGION_LOCK_UNCOND_SHARED_WRITE = 2,
REGION_LOCK_UNCOND_SHARED_OTHER = 3,
REGION_LOCK_UNCOND_SHARED_EXCLUSIVE = 0xFF
} REGION_LOCK;
struct mrsas_init_frame2 {
uint8_t cmd; /* 00h */
uint8_t reserved_0; /* 01h */
uint8_t cmd_status; /* 02h */
uint8_t reserved_1; /* 03h */
uint32_t reserved_2; /* 04h */
uint32_t context; /* 08h */
uint32_t pad_0; /* 0Ch */
uint16_t flags; /* 10h */
uint16_t reserved_3; /* 12h */
uint32_t data_xfer_len; /* 14h */
uint32_t queue_info_new_phys_addr_lo; /* 18h */
uint32_t queue_info_new_phys_addr_hi; /* 1Ch */
uint32_t queue_info_old_phys_addr_lo; /* 20h */
uint32_t queue_info_old_phys_addr_hi; /* 24h */
uint64_t driverversion; /* 28h */
uint32_t reserved_4[4]; /* 30h */
};
/*
* Request descriptor types
*/
#define MPI2_REQ_DESCRIPT_FLAGS_LD_IO 0x7
#define MPI2_REQ_DESCRIPT_FLAGS_MFA 0x1
#define MPI2_REQ_DESCRIPT_FLAGS_NO_LOCK 0x2
#define MPI2_REQ_DESCRIPT_FLAGS_TYPE_SHIFT 1
/*
* MPT RAID MFA IO Descriptor.
*/
typedef struct _MR_RAID_MFA_IO_DESCRIPTOR {
uint32_t RequestFlags : 8;
uint32_t MessageAddress1 : 24; /* bits 31:8 */
uint32_t MessageAddress2; /* bits 61:32 */
} MR_RAID_MFA_IO_REQUEST_DESCRIPTOR,
*PMR_RAID_MFA_IO_REQUEST_DESCRIPTOR;
/* union of Request Descriptors */
typedef union _MRSAS_REQUEST_DESCRIPTOR_UNION
{
MPI2_DEFAULT_REQUEST_DESCRIPTOR Default;
MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR HighPriority;
MPI2_SCSI_IO_REQUEST_DESCRIPTOR SCSIIO;
MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR SCSITarget;
MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR RAIDAccelerator;
MR_RAID_MFA_IO_REQUEST_DESCRIPTOR MFAIo;
U64 Words;
} MRSAS_REQUEST_DESCRIPTOR_UNION;
#pragma pack()
enum {
MRSAS_SCSI_VARIABLE_LENGTH_CMD = 0x7F,
MRSAS_SCSI_SERVICE_ACTION_READ32 = 0x9,
MRSAS_SCSI_SERVICE_ACTION_WRITE32 = 0xB,
MRSAS_SCSI_ADDL_CDB_LEN = 0x18,
MRSAS_RD_WR_PROTECT = 0x20,
MRSAS_EEDPBLOCKSIZE = 512
};
#define IEEE_SGE_FLAGS_ADDR_MASK (0x03)
#define IEEE_SGE_FLAGS_SYSTEM_ADDR (0x00)
#define IEEE_SGE_FLAGS_IOCDDR_ADDR (0x01)
#define IEEE_SGE_FLAGS_IOCPLB_ADDR (0x02)
#define IEEE_SGE_FLAGS_IOCPLBNTA_ADDR (0x03)
#define IEEE_SGE_FLAGS_CHAIN_ELEMENT (0x80)
#define IEEE_SGE_FLAGS_END_OF_LIST (0x40)
U8 MR_ValidateMapInfo(MR_FW_RAID_MAP_ALL *map, PLD_LOAD_BALANCE_INFO lbInfo);
U16 MR_CheckDIF(U32, MR_FW_RAID_MAP_ALL *);
U8 MR_BuildRaidContext(struct mrsas_instance *, struct IO_REQUEST_INFO *,
MPI2_SCSI_IO_VENDOR_UNIQUE *, MR_FW_RAID_MAP_ALL *);
#endif /* _LD_PD_MAP */
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