drivers/message/fusion/lsi/mpi_sas.h

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

File Facts

System: Linux kernel
Corpus path: drivers/message/fusion/lsi/mpi_sas.h
Extension: .h
Size: 13131 bytes
Lines: 280
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_SAS_H
#define MPI_SAS_H


/*
 * Values for SASStatus.
 */
#define MPI_SASSTATUS_SUCCESS                           (0x00)
#define MPI_SASSTATUS_UNKNOWN_ERROR                     (0x01)
#define MPI_SASSTATUS_INVALID_FRAME                     (0x02)
#define MPI_SASSTATUS_UTC_BAD_DEST                      (0x03)
#define MPI_SASSTATUS_UTC_BREAK_RECEIVED                (0x04)
#define MPI_SASSTATUS_UTC_CONNECT_RATE_NOT_SUPPORTED    (0x05)
#define MPI_SASSTATUS_UTC_PORT_LAYER_REQUEST            (0x06)
#define MPI_SASSTATUS_UTC_PROTOCOL_NOT_SUPPORTED        (0x07)
#define MPI_SASSTATUS_UTC_STP_RESOURCES_BUSY            (0x08)
#define MPI_SASSTATUS_UTC_WRONG_DESTINATION             (0x09)
#define MPI_SASSTATUS_SHORT_INFORMATION_UNIT            (0x0A)
#define MPI_SASSTATUS_LONG_INFORMATION_UNIT             (0x0B)
#define MPI_SASSTATUS_XFER_RDY_INCORRECT_WRITE_DATA     (0x0C)
#define MPI_SASSTATUS_XFER_RDY_REQUEST_OFFSET_ERROR     (0x0D)
#define MPI_SASSTATUS_XFER_RDY_NOT_EXPECTED             (0x0E)
#define MPI_SASSTATUS_DATA_INCORRECT_DATA_LENGTH        (0x0F)
#define MPI_SASSTATUS_DATA_TOO_MUCH_READ_DATA           (0x10)
#define MPI_SASSTATUS_DATA_OFFSET_ERROR                 (0x11)
#define MPI_SASSTATUS_SDSF_NAK_RECEIVED                 (0x12)
#define MPI_SASSTATUS_SDSF_CONNECTION_FAILED            (0x13)
#define MPI_SASSTATUS_INITIATOR_RESPONSE_TIMEOUT        (0x14)


/*
 * Values for the SAS DeviceInfo field used in SAS Device Status Change Event
 * data and SAS IO Unit Configuration pages.
 */
#define MPI_SAS_DEVICE_INFO_PRODUCT_SPECIFIC    (0xF0000000)

#define MPI_SAS_DEVICE_INFO_SEP                 (0x00004000)
#define MPI_SAS_DEVICE_INFO_ATAPI_DEVICE        (0x00002000)
#define MPI_SAS_DEVICE_INFO_LSI_DEVICE          (0x00001000)
#define MPI_SAS_DEVICE_INFO_DIRECT_ATTACH       (0x00000800)
#define MPI_SAS_DEVICE_INFO_SSP_TARGET          (0x00000400)
#define MPI_SAS_DEVICE_INFO_STP_TARGET          (0x00000200)
#define MPI_SAS_DEVICE_INFO_SMP_TARGET          (0x00000100)
#define MPI_SAS_DEVICE_INFO_SATA_DEVICE         (0x00000080)
#define MPI_SAS_DEVICE_INFO_SSP_INITIATOR       (0x00000040)
#define MPI_SAS_DEVICE_INFO_STP_INITIATOR       (0x00000020)
#define MPI_SAS_DEVICE_INFO_SMP_INITIATOR       (0x00000010)
#define MPI_SAS_DEVICE_INFO_SATA_HOST           (0x00000008)

#define MPI_SAS_DEVICE_INFO_MASK_DEVICE_TYPE    (0x00000007)
#define MPI_SAS_DEVICE_INFO_NO_DEVICE           (0x00000000)
#define MPI_SAS_DEVICE_INFO_END_DEVICE          (0x00000001)
#define MPI_SAS_DEVICE_INFO_EDGE_EXPANDER       (0x00000002)
#define MPI_SAS_DEVICE_INFO_FANOUT_EXPANDER     (0x00000003)



/*****************************************************************************
*
*        S e r i a l    A t t a c h e d    S C S I     M e s s a g e s
*
*****************************************************************************/

/****************************************************************************/
/* Serial Management Protocol Passthrough Request                           */
/****************************************************************************/

typedef struct _MSG_SMP_PASSTHROUGH_REQUEST
{
    U8                      PassthroughFlags;   /* 00h */
    U8                      PhysicalPort;       /* 01h */
    U8                      ChainOffset;        /* 02h */
    U8                      Function;           /* 03h */
    U16                     RequestDataLength;  /* 04h */
    U8                      ConnectionRate;     /* 06h */
    U8                      MsgFlags;           /* 07h */
    U32                     MsgContext;         /* 08h */
    U32                     Reserved1;          /* 0Ch */
    U64                     SASAddress;         /* 10h */
    U32                     Reserved2;          /* 18h */
    U32                     Reserved3;          /* 1Ch */
    SGE_SIMPLE_UNION        SGL;                /* 20h */
} MSG_SMP_PASSTHROUGH_REQUEST, MPI_POINTER PTR_MSG_SMP_PASSTHROUGH_REQUEST,
  SmpPassthroughRequest_t, MPI_POINTER pSmpPassthroughRequest_t;

/* values for PassthroughFlags field */
#define MPI_SMP_PT_REQ_PT_FLAGS_IMMEDIATE       (0x80)

/* values for ConnectionRate field */
#define MPI_SMP_PT_REQ_CONNECT_RATE_NEGOTIATED  (0x00)

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.