--- /dev/null
+/*
+ * Linux MegaRAID driver for SAS based RAID controllers
+ *
+ * Copyright (c) 2009-2013 LSI Corporation
+ * Copyright (c) 2013-2014 Avago Technologies
+ *
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * FILE: megaraid_sas_fusion.h
+ *
+ * Authors: Avago Technologies
+ * Manoj Jose
+ * Sumant Patro
+ * Kashyap Desai <kashyap.desai@avagotech.com>
+ * Sumit Saxena <sumit.saxena@avagotech.com>
+ *
+ * Send feedback to: megaraidlinux.pdl@avagotech.com
+ *
+ * Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
+ * San Jose, California 95131
+ */
+
+#ifndef _MEGARAID_SAS_FUSION_H_
+#define _MEGARAID_SAS_FUSION_H_
+
+/* Fusion defines */
+#define MEGASAS_MAX_SZ_CHAIN_FRAME 1024
+#define MFI_FUSION_ENABLE_INTERRUPT_MASK (0x00000009)
+#define MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE 256
+#define MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST 0xF0
+#define MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST 0xF1
+#define MEGASAS_LOAD_BALANCE_FLAG 0x1
+#define MEGASAS_DCMD_MBOX_PEND_FLAG 0x1
+#define HOST_DIAG_WRITE_ENABLE 0x80
+#define HOST_DIAG_RESET_ADAPTER 0x4
+#define MEGASAS_FUSION_MAX_RESET_TRIES 3
+#define MAX_MSIX_QUEUES_FUSION 128
+
+/* Invader defines */
+#define MPI2_TYPE_CUDA 0x2
+#define MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH 0x4000
+#define MR_RL_FLAGS_GRANT_DESTINATION_CPU0 0x00
+#define MR_RL_FLAGS_GRANT_DESTINATION_CPU1 0x10
+#define MR_RL_FLAGS_GRANT_DESTINATION_CUDA 0x80
+#define MR_RL_FLAGS_SEQ_NUM_ENABLE 0x8
+
+/* T10 PI defines */
+#define MR_PROT_INFO_TYPE_CONTROLLER 0x8
+#define MEGASAS_SCSI_VARIABLE_LENGTH_CMD 0x7f
+#define MEGASAS_SCSI_SERVICE_ACTION_READ32 0x9
+#define MEGASAS_SCSI_SERVICE_ACTION_WRITE32 0xB
+#define MEGASAS_SCSI_ADDL_CDB_LEN 0x18
+#define MEGASAS_RD_WR_PROTECT_CHECK_ALL 0x20
+#define MEGASAS_RD_WR_PROTECT_CHECK_NONE 0x60
+
+#define MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET (0x0000030C)
+#define MPI2_REPLY_POST_HOST_INDEX_OFFSET (0x0000006C)
+
+/*
+ * Raid context flags
+ */
+
+#define MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT 0x4
+#define MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_MASK 0x30
+enum MR_RAID_FLAGS_IO_SUB_TYPE {
+ MR_RAID_FLAGS_IO_SUB_TYPE_NONE = 0,
+ MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD = 1,
+};
+
+/*
+ * Request descriptor types
+ */
+#define MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO 0x7
+#define MEGASAS_REQ_DESCRIPT_FLAGS_MFA 0x1
+#define MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK 0x2
+#define MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT 1
+
+#define MEGASAS_FP_CMD_LEN 16
+#define MEGASAS_FUSION_IN_RESET 0
+#define THRESHOLD_REPLY_COUNT 50
+
+/*
+ * Raid Context structure which describes MegaRAID specific IO Parameters
+ * This resides at offset 0x60 where the SGL normally starts in MPT IO Frames
+ */
+
+struct RAID_CONTEXT {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u8 nseg:4;
+ u8 Type:4;
+#else
+ u8 Type:4;
+ u8 nseg:4;
+#endif
+ u8 resvd0;
+ u16 timeoutValue;
+ u8 regLockFlags;
+ u8 resvd1;
+ u16 VirtualDiskTgtId;
+ u64 regLockRowLBA;
+ u32 regLockLength;
+ u16 nextLMId;
+ u8 exStatus;
+ u8 status;
+ u8 RAIDFlags;
+ u8 numSGE;
+ u16 configSeqNum;
+ u8 spanArm;
+ u8 resvd2[3];
+};
+
+#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)
+
+/*
+ * define region lock types
+ */
+enum REGION_TYPE {
+ REGION_TYPE_UNUSED = 0,
+ REGION_TYPE_SHARED_READ = 1,
+ REGION_TYPE_SHARED_WRITE = 2,
+ REGION_TYPE_EXCLUSIVE = 3,
+};
+
+/* MPI2 defines */
+#define MPI2_FUNCTION_IOC_INIT (0x02) /* IOC Init */
+#define MPI2_WHOINIT_HOST_DRIVER (0x04)
+#define MPI2_VERSION_MAJOR (0x02)
+#define MPI2_VERSION_MINOR (0x00)
+#define MPI2_VERSION_MAJOR_MASK (0xFF00)
+#define MPI2_VERSION_MAJOR_SHIFT (8)
+#define MPI2_VERSION_MINOR_MASK (0x00FF)
+#define MPI2_VERSION_MINOR_SHIFT (0)
+#define MPI2_VERSION ((MPI2_VERSION_MAJOR << MPI2_VERSION_MAJOR_SHIFT) | \
+ MPI2_VERSION_MINOR)
+#define MPI2_HEADER_VERSION_UNIT (0x10)
+#define MPI2_HEADER_VERSION_DEV (0x00)
+#define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00)
+#define MPI2_HEADER_VERSION_UNIT_SHIFT (8)
+#define MPI2_HEADER_VERSION_DEV_MASK (0x00FF)
+#define MPI2_HEADER_VERSION_DEV_SHIFT (0)
+#define MPI2_HEADER_VERSION ((MPI2_HEADER_VERSION_UNIT << 8) | \
+ MPI2_HEADER_VERSION_DEV)
+#define MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR (0x03)
+#define MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG (0x8000)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG (0x0400)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP (0x0003)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG (0x0200)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD (0x0100)
+#define MPI2_SCSIIO_EEDPFLAGS_INSERT_OP (0x0004)
+#define MPI2_FUNCTION_SCSI_IO_REQUEST (0x00) /* SCSI IO */
+#define MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY (0x06)
+#define MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO (0x00)
+#define MPI2_SGE_FLAGS_64_BIT_ADDRESSING (0x02)
+#define MPI2_SCSIIO_CONTROL_WRITE (0x01000000)
+#define MPI2_SCSIIO_CONTROL_READ (0x02000000)
+#define MPI2_REQ_DESCRIPT_FLAGS_TYPE_MASK (0x0E)
+#define MPI2_RPY_DESCRIPT_FLAGS_UNUSED (0x0F)
+#define MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS (0x00)
+#define MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK (0x0F)
+#define MPI2_WRSEQ_FLUSH_KEY_VALUE (0x0)
+#define MPI2_WRITE_SEQUENCE_OFFSET (0x00000004)
+#define MPI2_WRSEQ_1ST_KEY_VALUE (0xF)
+#define MPI2_WRSEQ_2ND_KEY_VALUE (0x4)
+#define MPI2_WRSEQ_3RD_KEY_VALUE (0xB)
+#define MPI2_WRSEQ_4TH_KEY_VALUE (0x2)
+#define MPI2_WRSEQ_5TH_KEY_VALUE (0x7)
+#define MPI2_WRSEQ_6TH_KEY_VALUE (0xD)
+
+struct MPI25_IEEE_SGE_CHAIN64 {
+ u64 Address;
+ u32 Length;
+ u16 Reserved1;
+ u8 NextChainOffset;
+ u8 Flags;
+};
+
+struct MPI2_SGE_SIMPLE_UNION {
+ u32 FlagsLength;
+ union {
+ u32 Address32;
+ u64 Address64;
+ } u;
+};
+
+struct MPI2_SCSI_IO_CDB_EEDP32 {
+ u8 CDB[20]; /* 0x00 */
+ u32 PrimaryReferenceTag; /* 0x14 */
+ u16 PrimaryApplicationTag; /* 0x18 */
+ u16 PrimaryApplicationTagMask; /* 0x1A */
+ u32 TransferLength; /* 0x1C */
+};
+
+struct MPI2_SGE_CHAIN_UNION {
+ u16 Length;
+ u8 NextChainOffset;
+ u8 Flags;
+ union {
+ u32 Address32;
+ u64 Address64;
+ } u;
+};
+
+struct MPI2_IEEE_SGE_SIMPLE32 {
+ u32 Address;
+ u32 FlagsLength;
+};
+
+struct MPI2_IEEE_SGE_CHAIN32 {
+ u32 Address;
+ u32 FlagsLength;
+};
+
+struct MPI2_IEEE_SGE_SIMPLE64 {
+ u64 Address;
+ u32 Length;
+ u16 Reserved1;
+ u8 Reserved2;
+ u8 Flags;
+};
+
+struct MPI2_IEEE_SGE_CHAIN64 {
+ u64 Address;
+ u32 Length;
+ u16 Reserved1;
+ u8 Reserved2;
+ u8 Flags;
+};
+
+union MPI2_IEEE_SGE_SIMPLE_UNION {
+ struct MPI2_IEEE_SGE_SIMPLE32 Simple32;
+ struct MPI2_IEEE_SGE_SIMPLE64 Simple64;
+};
+
+union MPI2_IEEE_SGE_CHAIN_UNION {
+ struct MPI2_IEEE_SGE_CHAIN32 Chain32;
+ struct MPI2_IEEE_SGE_CHAIN64 Chain64;
+};
+
+union MPI2_SGE_IO_UNION {
+ struct MPI2_SGE_SIMPLE_UNION MpiSimple;
+ struct MPI2_SGE_CHAIN_UNION MpiChain;
+ union MPI2_IEEE_SGE_SIMPLE_UNION IeeeSimple;
+ union MPI2_IEEE_SGE_CHAIN_UNION IeeeChain;
+};
+
+union MPI2_SCSI_IO_CDB_UNION {
+ u8 CDB32[32];
+ struct MPI2_SCSI_IO_CDB_EEDP32 EEDP32;
+ struct MPI2_SGE_SIMPLE_UNION SGE;
+};
+
+/*
+ * RAID SCSI IO Request Message
+ * Total SGE count will be one less than _MPI2_SCSI_IO_REQUEST
+ */
+struct MPI2_RAID_SCSI_IO_REQUEST {
+ u16 DevHandle; /* 0x00 */
+ u8 ChainOffset; /* 0x02 */
+ u8 Function; /* 0x03 */
+ u16 Reserved1; /* 0x04 */
+ u8 Reserved2; /* 0x06 */
+ u8 MsgFlags; /* 0x07 */
+ u8 VP_ID; /* 0x08 */
+ u8 VF_ID; /* 0x09 */
+ u16 Reserved3; /* 0x0A */
+ u32 SenseBufferLowAddress; /* 0x0C */
+ u16 SGLFlags; /* 0x10 */
+ u8 SenseBufferLength; /* 0x12 */
+ u8 Reserved4; /* 0x13 */
+ u8 SGLOffset0; /* 0x14 */
+ u8 SGLOffset1; /* 0x15 */
+ u8 SGLOffset2; /* 0x16 */
+ u8 SGLOffset3; /* 0x17 */
+ u32 SkipCount; /* 0x18 */
+ u32 DataLength; /* 0x1C */
+ u32 BidirectionalDataLength; /* 0x20 */
+ u16 IoFlags; /* 0x24 */
+ u16 EEDPFlags; /* 0x26 */
+ u32 EEDPBlockSize; /* 0x28 */
+ u32 SecondaryReferenceTag; /* 0x2C */
+ u16 SecondaryApplicationTag; /* 0x30 */
+ u16 ApplicationTagTranslationMask; /* 0x32 */
+ u8 LUN[8]; /* 0x34 */
+ u32 Control; /* 0x3C */
+ union MPI2_SCSI_IO_CDB_UNION CDB; /* 0x40 */
+ struct RAID_CONTEXT RaidContext; /* 0x60 */
+ union MPI2_SGE_IO_UNION SGL; /* 0x80 */
+};
+
+/*
+ * MPT RAID MFA IO Descriptor.
+ */
+struct MEGASAS_RAID_MFA_IO_REQUEST_DESCRIPTOR {
+ u32 RequestFlags:8;
+ u32 MessageAddress1:24;
+ u32 MessageAddress2;
+};
+
+/* Default Request Descriptor */
+struct MPI2_DEFAULT_REQUEST_DESCRIPTOR {
+ u8 RequestFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u16 LMID; /* 0x04 */
+ u16 DescriptorTypeDependent; /* 0x06 */
+};
+
+/* High Priority Request Descriptor */
+struct MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR {
+ u8 RequestFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u16 LMID; /* 0x04 */
+ u16 Reserved1; /* 0x06 */
+};
+
+/* SCSI IO Request Descriptor */
+struct MPI2_SCSI_IO_REQUEST_DESCRIPTOR {
+ u8 RequestFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u16 LMID; /* 0x04 */
+ u16 DevHandle; /* 0x06 */
+};
+
+/* SCSI Target Request Descriptor */
+struct MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR {
+ u8 RequestFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u16 LMID; /* 0x04 */
+ u16 IoIndex; /* 0x06 */
+};
+
+/* RAID Accelerator Request Descriptor */
+struct MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR {
+ u8 RequestFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u16 LMID; /* 0x04 */
+ u16 Reserved; /* 0x06 */
+};
+
+/* union of Request Descriptors */
+union MEGASAS_REQUEST_DESCRIPTOR_UNION {
+ struct MPI2_DEFAULT_REQUEST_DESCRIPTOR Default;
+ struct MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR HighPriority;
+ struct MPI2_SCSI_IO_REQUEST_DESCRIPTOR SCSIIO;
+ struct MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR SCSITarget;
+ struct MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR RAIDAccelerator;
+ struct MEGASAS_RAID_MFA_IO_REQUEST_DESCRIPTOR MFAIo;
+ union {
+ struct {
+ u32 low;
+ u32 high;
+ } u;
+ u64 Words;
+ };
+};
+
+/* Default Reply Descriptor */
+struct MPI2_DEFAULT_REPLY_DESCRIPTOR {
+ u8 ReplyFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 DescriptorTypeDependent1; /* 0x02 */
+ u32 DescriptorTypeDependent2; /* 0x04 */
+};
+
+/* Address Reply Descriptor */
+struct MPI2_ADDRESS_REPLY_DESCRIPTOR {
+ u8 ReplyFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u32 ReplyFrameAddress; /* 0x04 */
+};
+
+/* SCSI IO Success Reply Descriptor */
+struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR {
+ u8 ReplyFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u16 TaskTag; /* 0x04 */
+ u16 Reserved1; /* 0x06 */
+};
+
+/* TargetAssist Success Reply Descriptor */
+struct MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR {
+ u8 ReplyFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u8 SequenceNumber; /* 0x04 */
+ u8 Reserved1; /* 0x05 */
+ u16 IoIndex; /* 0x06 */
+};
+
+/* Target Command Buffer Reply Descriptor */
+struct MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR {
+ u8 ReplyFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u8 VP_ID; /* 0x02 */
+ u8 Flags; /* 0x03 */
+ u16 InitiatorDevHandle; /* 0x04 */
+ u16 IoIndex; /* 0x06 */
+};
+
+/* RAID Accelerator Success Reply Descriptor */
+struct MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR {
+ u8 ReplyFlags; /* 0x00 */
+ u8 MSIxIndex; /* 0x01 */
+ u16 SMID; /* 0x02 */
+ u32 Reserved; /* 0x04 */
+};
+
+/* union of Reply Descriptors */
+union MPI2_REPLY_DESCRIPTORS_UNION {
+ struct MPI2_DEFAULT_REPLY_DESCRIPTOR Default;
+ struct MPI2_ADDRESS_REPLY_DESCRIPTOR AddressReply;
+ struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR SCSIIOSuccess;
+ struct MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR TargetAssistSuccess;
+ struct MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR TargetCommandBuffer;
+ struct MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR
+ RAIDAcceleratorSuccess;
+ u64 Words;
+};
+
+/* IOCInit Request message */
+struct MPI2_IOC_INIT_REQUEST {
+ u8 WhoInit; /* 0x00 */
+ u8 Reserved1; /* 0x01 */
+ u8 ChainOffset; /* 0x02 */
+ u8 Function; /* 0x03 */
+ u16 Reserved2; /* 0x04 */
+ u8 Reserved3; /* 0x06 */
+ u8 MsgFlags; /* 0x07 */
+ u8 VP_ID; /* 0x08 */
+ u8 VF_ID; /* 0x09 */
+ u16 Reserved4; /* 0x0A */
+ u16 MsgVersion; /* 0x0C */
+ u16 HeaderVersion; /* 0x0E */
+ u32 Reserved5; /* 0x10 */
+ u16 Reserved6; /* 0x14 */
+ u8 Reserved7; /* 0x16 */
+ u8 HostMSIxVectors; /* 0x17 */
+ u16 Reserved8; /* 0x18 */
+ u16 SystemRequestFrameSize; /* 0x1A */
+ u16 ReplyDescriptorPostQueueDepth; /* 0x1C */
+ u16 ReplyFreeQueueDepth; /* 0x1E */
+ u32 SenseBufferAddressHigh; /* 0x20 */
+ u32 SystemReplyAddressHigh; /* 0x24 */
+ u64 SystemRequestFrameBaseAddress; /* 0x28 */
+ u64 ReplyDescriptorPostQueueAddress;/* 0x30 */
+ u64 ReplyFreeQueueAddress; /* 0x38 */
+ u64 TimeStamp; /* 0x40 */
+};
+
+/* mrpriv defines */
+#define MR_PD_INVALID 0xFFFF
+#define MAX_SPAN_DEPTH 8
+#define MAX_QUAD_DEPTH MAX_SPAN_DEPTH
+#define MAX_RAIDMAP_SPAN_DEPTH (MAX_SPAN_DEPTH)
+#define MAX_ROW_SIZE 32
+#define MAX_RAIDMAP_ROW_SIZE (MAX_ROW_SIZE)
+#define MAX_LOGICAL_DRIVES 64
+#define MAX_LOGICAL_DRIVES_EXT 256
+#define MAX_RAIDMAP_LOGICAL_DRIVES (MAX_LOGICAL_DRIVES)
+#define MAX_RAIDMAP_VIEWS (MAX_LOGICAL_DRIVES)
+#define MAX_ARRAYS 128
+#define MAX_RAIDMAP_ARRAYS (MAX_ARRAYS)
+#define MAX_ARRAYS_EXT 256
+#define MAX_API_ARRAYS_EXT (MAX_ARRAYS_EXT)
+#define MAX_PHYSICAL_DEVICES 256
+#define MAX_RAIDMAP_PHYSICAL_DEVICES (MAX_PHYSICAL_DEVICES)
+#define MR_DCMD_LD_MAP_GET_INFO 0x0300e101
+#define MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC 0x010e8485 /* SR-IOV HB alloc*/
+#define MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111 0x03200200
+#define MR_DCMD_LD_VF_MAP_GET_ALL_LDS 0x03150200
+
+struct MR_DEV_HANDLE_INFO {
+ u16 curDevHdl;
+ u8 validHandles;
+ u8 reserved;
+ u16 devHandle[2];
+};
+
+struct MR_ARRAY_INFO {
+ u16 pd[MAX_RAIDMAP_ROW_SIZE];
+};
+
+struct MR_QUAD_ELEMENT {
+ u64 logStart;
+ u64 logEnd;
+ u64 offsetInSpan;
+ u32 diff;
+ u32 reserved1;
+};
+
+struct MR_SPAN_INFO {
+ u32 noElements;
+ u32 reserved1;
+ struct MR_QUAD_ELEMENT quad[MAX_RAIDMAP_SPAN_DEPTH];
+};
+
+struct MR_LD_SPAN {
+ u64 startBlk;
+ u64 numBlks;
+ u16 arrayRef;
+ u8 spanRowSize;
+ u8 spanRowDataSize;
+ u8 reserved[4];
+};
+
+struct MR_SPAN_BLOCK_INFO {
+ u64 num_rows;
+ struct MR_LD_SPAN span;
+ struct MR_SPAN_INFO block_span_info;
+};
+
+struct MR_LD_RAID {
+ struct {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u32 reserved4:7;
+ u32 fpNonRWCapable:1;
+ u32 fpReadAcrossStripe:1;
+ u32 fpWriteAcrossStripe:1;
+ u32 fpReadCapable:1;
+ u32 fpWriteCapable:1;
+ u32 encryptionType:8;
+ u32 pdPiMode:4;
+ u32 ldPiMode:4;
+ u32 reserved5:3;
+ u32 fpCapable:1;
+#else
+ u32 fpCapable:1;
+ u32 reserved5:3;
+ u32 ldPiMode:4;
+ u32 pdPiMode:4;
+ u32 encryptionType:8;
+ u32 fpWriteCapable:1;
+ u32 fpReadCapable:1;
+ u32 fpWriteAcrossStripe:1;
+ u32 fpReadAcrossStripe:1;
+ u32 fpNonRWCapable:1;
+ u32 reserved4:7;
+#endif
+ } capability;
+ u32 reserved6;
+ u64 size;
+ u8 spanDepth;
+ u8 level;
+ u8 stripeShift;
+ u8 rowSize;
+ u8 rowDataSize;
+ u8 writeMode;
+ u8 PRL;
+ u8 SRL;
+ u16 targetId;
+ u8 ldState;
+ u8 regTypeReqOnWrite;
+ u8 modFactor;
+ u8 regTypeReqOnRead;
+ u16 seqNum;
+
+ struct {
+ u32 ldSyncRequired:1;
+ u32 reserved:31;
+ } flags;
+
+ u8 LUN[8]; /* 0x24 8 byte LUN field used for SCSI IO's */
+ u8 fpIoTimeoutForLd;/*0x2C timeout value used by driver in FP IO*/
+ u8 reserved3[0x80-0x2D]; /* 0x2D */
+};
+
+struct MR_LD_SPAN_MAP {
+ struct MR_LD_RAID ldRaid;
+ u8 dataArmMap[MAX_RAIDMAP_ROW_SIZE];
+ struct MR_SPAN_BLOCK_INFO spanBlock[MAX_RAIDMAP_SPAN_DEPTH];
+};
+
+struct MR_FW_RAID_MAP {
+ u32 totalSize;
+ union {
+ struct {
+ u32 maxLd;
+ u32 maxSpanDepth;
+ u32 maxRowSize;
+ u32 maxPdCount;
+ u32 maxArrays;
+ } validationInfo;
+ u32 version[5];
+ };
+
+ u32 ldCount;
+ u32 Reserved1;
+ u8 ldTgtIdToLd[MAX_RAIDMAP_LOGICAL_DRIVES+
+ MAX_RAIDMAP_VIEWS];
+ u8 fpPdIoTimeoutSec;
+ u8 reserved2[7];
+ struct MR_ARRAY_INFO arMapInfo[MAX_RAIDMAP_ARRAYS];
+ struct MR_DEV_HANDLE_INFO devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES];
+ struct MR_LD_SPAN_MAP ldSpanMap[1];
+};
+
+struct IO_REQUEST_INFO {
+ u64 ldStartBlock;
+ u32 numBlocks;
+ u16 ldTgtId;
+ u8 isRead;
+ u16 devHandle;
+ u64 pdBlock;
+ u8 fpOkForIo;
+ u8 IoforUnevenSpan;
+ u8 start_span;
+ u8 reserved;
+ u64 start_row;
+ u8 span_arm; /* span[7:5], arm[4:0] */
+ u8 pd_after_lb;
+};
+
+struct MR_LD_TARGET_SYNC {
+ u8 targetId;
+ u8 reserved;
+ u16 seqNum;
+};
+
+#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)
+
+struct megasas_register_set;
+struct megasas_instance;
+
+union desc_word {
+ u64 word;
+ struct {
+ u32 low;
+ u32 high;
+ } u;
+};
+
+struct megasas_cmd_fusion {
+ struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
+ dma_addr_t io_request_phys_addr;
+
+ union MPI2_SGE_IO_UNION *sg_frame;
+ dma_addr_t sg_frame_phys_addr;
+
+ u8 *sense;
+ dma_addr_t sense_phys_addr;
+
+ struct list_head list;
+ struct scsi_cmnd *scmd;
+ struct megasas_instance *instance;
+
+ u8 retry_for_fw_reset;
+ union MEGASAS_REQUEST_DESCRIPTOR_UNION *request_desc;
+
+ /*
+ * Context for a MFI frame.
+ * Used to get the mfi cmd from list when a MFI cmd is completed
+ */
+ u32 sync_cmd_idx;
+ u32 index;
+ u8 flags;
+ u8 pd_r1_lb;
+};
+
+struct LD_LOAD_BALANCE_INFO {
+ u8 loadBalanceFlag;
+ u8 reserved1;
+ atomic_t scsi_pending_cmds[MAX_PHYSICAL_DEVICES];
+ u64 last_accessed_block[MAX_PHYSICAL_DEVICES];
+};
+
+/* SPAN_SET is info caclulated from span info from Raid map per LD */
+typedef struct _LD_SPAN_SET {
+ u64 log_start_lba;
+ u64 log_end_lba;
+ u64 span_row_start;
+ u64 span_row_end;
+ u64 data_strip_start;
+ u64 data_strip_end;
+ u64 data_row_start;
+ u64 data_row_end;
+ u8 strip_offset[MAX_SPAN_DEPTH];
+ u32 span_row_data_width;
+ u32 diff;
+ u32 reserved[2];
+} LD_SPAN_SET, *PLD_SPAN_SET;
+
+typedef struct LOG_BLOCK_SPAN_INFO {
+ LD_SPAN_SET span_set[MAX_SPAN_DEPTH];
+} LD_SPAN_INFO, *PLD_SPAN_INFO;
+
+struct MR_FW_RAID_MAP_ALL {
+ struct MR_FW_RAID_MAP raidMap;
+ struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES - 1];
+} __attribute__ ((packed));
+
+struct MR_DRV_RAID_MAP {
+ /* total size of this structure, including this field.
+ * This feild will be manupulated by driver for ext raid map,
+ * else pick the value from firmware raid map.
+ */
+ u32 totalSize;
+
+ union {
+ struct {
+ u32 maxLd;
+ u32 maxSpanDepth;
+ u32 maxRowSize;
+ u32 maxPdCount;
+ u32 maxArrays;
+ } validationInfo;
+ u32 version[5];
+ };
+
+ /* timeout value used by driver in FP IOs*/
+ u8 fpPdIoTimeoutSec;
+ u8 reserved2[7];
+
+ u16 ldCount;
+ u16 arCount;
+ u16 spanCount;
+ u16 reserve3;
+
+ struct MR_DEV_HANDLE_INFO devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES];
+ u8 ldTgtIdToLd[MAX_LOGICAL_DRIVES_EXT];
+ struct MR_ARRAY_INFO arMapInfo[MAX_API_ARRAYS_EXT];
+ struct MR_LD_SPAN_MAP ldSpanMap[1];
+
+};
+
+/* Driver raid map size is same as raid map ext
+ * MR_DRV_RAID_MAP_ALL is created to sync with old raid.
+ * And it is mainly for code re-use purpose.
+ */
+struct MR_DRV_RAID_MAP_ALL {
+
+ struct MR_DRV_RAID_MAP raidMap;
+ struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_EXT - 1];
+} __packed;
+
+
+
+struct MR_FW_RAID_MAP_EXT {
+ /* Not usred in new map */
+ u32 reserved;
+
+ union {
+ struct {
+ u32 maxLd;
+ u32 maxSpanDepth;
+ u32 maxRowSize;
+ u32 maxPdCount;
+ u32 maxArrays;
+ } validationInfo;
+ u32 version[5];
+ };
+
+ u8 fpPdIoTimeoutSec;
+ u8 reserved2[7];
+
+ u16 ldCount;
+ u16 arCount;
+ u16 spanCount;
+ u16 reserve3;
+
+ struct MR_DEV_HANDLE_INFO devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES];
+ u8 ldTgtIdToLd[MAX_LOGICAL_DRIVES_EXT];
+ struct MR_ARRAY_INFO arMapInfo[MAX_API_ARRAYS_EXT];
+ struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_EXT];
+};
+
+struct fusion_context {
+ struct megasas_cmd_fusion **cmd_list;
+ struct list_head cmd_pool;
+
+ spinlock_t mpt_pool_lock;
+
+ dma_addr_t req_frames_desc_phys;
+ u8 *req_frames_desc;
+
+ struct dma_pool *io_request_frames_pool;
+ dma_addr_t io_request_frames_phys;
+ u8 *io_request_frames;
+
+ struct dma_pool *sg_dma_pool;
+ struct dma_pool *sense_dma_pool;
+
+ dma_addr_t reply_frames_desc_phys;
+ union MPI2_REPLY_DESCRIPTORS_UNION *reply_frames_desc;
+ struct dma_pool *reply_frames_desc_pool;
+
+ u16 last_reply_idx[MAX_MSIX_QUEUES_FUSION];
+
+ u32 reply_q_depth;
+ u32 request_alloc_sz;
+ u32 reply_alloc_sz;
+ u32 io_frames_alloc_sz;
+
+ u16 max_sge_in_main_msg;
+ u16 max_sge_in_chain;
+
+ u8 chain_offset_io_request;
+ u8 chain_offset_mfi_pthru;
+
+ struct MR_FW_RAID_MAP_ALL *ld_map[2];
+ dma_addr_t ld_map_phys[2];
+
+ /*Non dma-able memory. Driver local copy.*/
+ struct MR_DRV_RAID_MAP_ALL *ld_drv_map[2];
+
+ u32 max_map_sz;
+ u32 current_map_sz;
+ u32 drv_map_sz;
+ u32 drv_map_pages;
+ u8 fast_path_io;
+ struct LD_LOAD_BALANCE_INFO load_balance_info[MAX_LOGICAL_DRIVES_EXT];
+ LD_SPAN_INFO log_to_span[MAX_LOGICAL_DRIVES_EXT];
+};
+
+union desc_value {
+ u64 word;
+ struct {
+ u32 low;
+ u32 high;
+ } u;
+};
+
+
+#endif /* _MEGARAID_SAS_FUSION_H_ */
Code Review / kvmfornfv.git / blobdiff