drivers/message/fusion/lsi/mpi_ioc.h

Source file repositories/reference/linux-study-clean/drivers/message/fusion/lsi/mpi_ioc.h

File Facts

System: Linux kernel
Corpus path: drivers/message/fusion/lsi/mpi_ioc.h
Extension: .h
Size: 60820 bytes
Lines: 1209
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_IOC_H
#define MPI_IOC_H


/*****************************************************************************
*
*               I O C    M e s s a g e s
*
*****************************************************************************/

/****************************************************************************/
/*  IOCInit message                                                         */
/****************************************************************************/

typedef struct _MSG_IOC_INIT
{
    U8                      WhoInit;                    /* 00h */
    U8                      Reserved;                   /* 01h */
    U8                      ChainOffset;                /* 02h */
    U8                      Function;                   /* 03h */
    U8                      Flags;                      /* 04h */
    U8                      MaxDevices;                 /* 05h */
    U8                      MaxBuses;                   /* 06h */
    U8                      MsgFlags;                   /* 07h */
    U32                     MsgContext;                 /* 08h */
    U16                     ReplyFrameSize;             /* 0Ch */
    U8                      Reserved1[2];               /* 0Eh */
    U32                     HostMfaHighAddr;            /* 10h */
    U32                     SenseBufferHighAddr;        /* 14h */
    U32                     ReplyFifoHostSignalingAddr; /* 18h */
    SGE_SIMPLE_UNION        HostPageBufferSGE;          /* 1Ch */
    U16                     MsgVersion;                 /* 28h */
    U16                     HeaderVersion;              /* 2Ah */
} MSG_IOC_INIT, MPI_POINTER PTR_MSG_IOC_INIT,
  IOCInit_t, MPI_POINTER pIOCInit_t;

/* WhoInit values */
#define MPI_WHOINIT_NO_ONE                              (0x00)
#define MPI_WHOINIT_SYSTEM_BIOS                         (0x01)
#define MPI_WHOINIT_ROM_BIOS                            (0x02)
#define MPI_WHOINIT_PCI_PEER                            (0x03)
#define MPI_WHOINIT_HOST_DRIVER                         (0x04)
#define MPI_WHOINIT_MANUFACTURER                        (0x05)

/* Flags values */
#define MPI_IOCINIT_FLAGS_HOST_PAGE_BUFFER_PERSISTENT   (0x04)
#define MPI_IOCINIT_FLAGS_REPLY_FIFO_HOST_SIGNAL        (0x02)
#define MPI_IOCINIT_FLAGS_DISCARD_FW_IMAGE              (0x01)

/* MsgVersion */
#define MPI_IOCINIT_MSGVERSION_MAJOR_MASK               (0xFF00)
#define MPI_IOCINIT_MSGVERSION_MAJOR_SHIFT              (8)
#define MPI_IOCINIT_MSGVERSION_MINOR_MASK               (0x00FF)
#define MPI_IOCINIT_MSGVERSION_MINOR_SHIFT              (0)

/* HeaderVersion */
#define MPI_IOCINIT_HEADERVERSION_UNIT_MASK             (0xFF00)
#define MPI_IOCINIT_HEADERVERSION_UNIT_SHIFT            (8)
#define MPI_IOCINIT_HEADERVERSION_DEV_MASK              (0x00FF)
#define MPI_IOCINIT_HEADERVERSION_DEV_SHIFT             (0)


typedef struct _MSG_IOC_INIT_REPLY
{
    U8                      WhoInit;                    /* 00h */
    U8                      Reserved;                   /* 01h */
    U8                      MsgLength;                  /* 02h */
    U8                      Function;                   /* 03h */
    U8                      Flags;                      /* 04h */
    U8                      MaxDevices;                 /* 05h */
    U8                      MaxBuses;                   /* 06h */
    U8                      MsgFlags;                   /* 07h */
    U32                     MsgContext;                 /* 08h */
    U16                     Reserved2;                  /* 0Ch */
    U16                     IOCStatus;                  /* 0Eh */
    U32                     IOCLogInfo;                 /* 10h */
} MSG_IOC_INIT_REPLY, MPI_POINTER PTR_MSG_IOC_INIT_REPLY,
  IOCInitReply_t, MPI_POINTER pIOCInitReply_t;



/****************************************************************************/
/*  IOC Facts message                                                       */
/****************************************************************************/

typedef struct _MSG_IOC_FACTS
{
    U8                      Reserved[2];                /* 00h */
    U8                      ChainOffset;                /* 01h */
    U8                      Function;                   /* 02h */

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.