drivers/message/fusion/lsi/mpi_targ.h

File Facts

System

Linux kernel

Corpus path

drivers/message/fusion/lsi/mpi_targ.h

Extension

.h

Size

34362 bytes

Lines

652

Domain

Driver Families

Bucket

drivers/message

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef MPI_TARG_H
#define MPI_TARG_H


/******************************************************************************
*
*        S C S I    T a r g e t    M e s s a g e s
*
*******************************************************************************/

typedef struct _CMD_BUFFER_DESCRIPTOR
{
    U16                     IoIndex;                    /* 00h */
    U16                     Reserved;                   /* 02h */
    union                                               /* 04h */
    {
        U32                 PhysicalAddress32;
        U64                 PhysicalAddress64;
    } u;
} CMD_BUFFER_DESCRIPTOR, MPI_POINTER PTR_CMD_BUFFER_DESCRIPTOR,
  CmdBufferDescriptor_t, MPI_POINTER pCmdBufferDescriptor_t;


/****************************************************************************/
/* Target Command Buffer Post Request                                       */
/****************************************************************************/

typedef struct _MSG_TARGET_CMD_BUFFER_POST_REQUEST
{
    U8                      BufferPostFlags;            /* 00h */
    U8                      BufferCount;                /* 01h */
    U8                      ChainOffset;                /* 02h */
    U8                      Function;                   /* 03h */
    U8                      BufferLength;               /* 04h */
    U8                      Reserved;                   /* 05h */
    U8                      Reserved1;                  /* 06h */
    U8                      MsgFlags;                   /* 07h */
    U32                     MsgContext;                 /* 08h */
    CMD_BUFFER_DESCRIPTOR   Buffer[1];                  /* 0Ch */
} MSG_TARGET_CMD_BUFFER_POST_REQUEST, MPI_POINTER PTR_MSG_TARGET_CMD_BUFFER_POST_REQUEST,
  TargetCmdBufferPostRequest_t, MPI_POINTER pTargetCmdBufferPostRequest_t;

#define CMD_BUFFER_POST_FLAGS_PORT_MASK         (0x01)
#define CMD_BUFFER_POST_FLAGS_ADDR_MODE_MASK    (0x80)
#define CMD_BUFFER_POST_FLAGS_ADDR_MODE_32      (0)
#define CMD_BUFFER_POST_FLAGS_ADDR_MODE_64      (1)
#define CMD_BUFFER_POST_FLAGS_64_BIT_ADDR       (0x80)

#define CMD_BUFFER_POST_IO_INDEX_MASK           (0x00003FFF)
#define CMD_BUFFER_POST_IO_INDEX_MASK_0100      (0x000003FF) /* obsolete */


typedef struct _MSG_TARGET_CMD_BUFFER_POST_REPLY
{
    U8                      BufferPostFlags;            /* 00h */
    U8                      BufferCount;                /* 01h */
    U8                      MsgLength;                  /* 02h */
    U8                      Function;                   /* 03h */
    U8                      BufferLength;               /* 04h */
    U8                      Reserved;                   /* 05h */
    U8                      Reserved1;                  /* 06h */
    U8                      MsgFlags;                   /* 07h */
    U32                     MsgContext;                 /* 08h */
    U16                     Reserved2;                  /* 0Ch */
    U16                     IOCStatus;                  /* 0Eh */
    U32                     IOCLogInfo;                 /* 10h */
} MSG_TARGET_CMD_BUFFER_POST_REPLY, MPI_POINTER PTR_MSG_TARGET_CMD_BUFFER_POST_REPLY,
  TargetCmdBufferPostReply_t, MPI_POINTER pTargetCmdBufferPostReply_t;

/* the following structure is obsolete as of MPI v1.2 */
typedef struct _MSG_PRIORITY_CMD_RECEIVED_REPLY
{
    U16                     Reserved;                   /* 00h */
    U8                      MsgLength;                  /* 02h */
    U8                      Function;                   /* 03h */
    U16                     Reserved1;                  /* 04h */
    U8                      Reserved2;                  /* 06h */
    U8                      MsgFlags;                   /* 07h */
    U32                     MsgContext;                 /* 08h */
    U8                      PriorityReason;             /* 0Ch */
    U8                      Reserved3;                  /* 0Dh */
    U16                     IOCStatus;                  /* 0Eh */
    U32                     IOCLogInfo;                 /* 10h */
    U32                     ReplyWord;                  /* 14h */
} MSG_PRIORITY_CMD_RECEIVED_REPLY, MPI_POINTER PTR_MSG_PRIORITY_CMD_RECEIVED_REPLY,
  PriorityCommandReceivedReply_t, MPI_POINTER pPriorityCommandReceivedReply_t;


typedef struct _MSG_TARGET_CMD_BUFFER_POST_ERROR_REPLY
{

Annotation

• Atlas domain: Driver Families / drivers/message.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.