/* * 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 #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 */