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tran_sync_pkt (9)
  • >> tran_sync_pkt (9) ( Solaris man: Ядро )
  •  

    NAME

    tran_sync_pkt - SCSI HBA memory synchronization entry point
     
    

    SYNOPSIS

    #include <sys/scsi/scsi.h> 
    
    
    
    void prefixtran_sync_pkt(struct scsi_address *ap, 
        struct scsi_pkt *pkt);
    

     

    INTERFACE LEVEL

    Solaris architecture specific (Solaris DDI).  

    PARAMETERS

    ap

    A pointer to a scsi_address(9S) structure.

    pkt

    A pointer to a scsi_pkt(9S) structure.

     

    DESCRIPTION

    The tran_sync_pkt() vector in the scsi_hba_tran(9S) structure must be initialized during the HBA driver's attach(9E) to point to an HBA driver entry point to be called when a target driver calls scsi_sync_pkt(9F).

    tran_sync_pkt() must synchronize a HBA's or device's view of the data associated with the pkt, typically by calling ddi_dma_sync(9F). The operation may also involve HBA hardware-specific details, such as flushing I/O caches, or stalling until hardware buffers have been drained.  

    SEE ALSO

    attach(9E), tran_init_pkt(9E), ddi_dma_sync(9F), scsi_hba_attach(9F), scsi_init_pkt(9F), scsi_sync_pkt(9F), scsi_address(9S), scsi_hba_tran(9S), scsi_pkt(9S)

    Writing Device Drivers  

    NOTES

    A target driver may call tran_sync_pkt() on packets for which no DMA resources were allocated.


     

    Index

    NAME
    SYNOPSIS
    INTERFACE LEVEL
    PARAMETERS
    DESCRIPTION
    SEE ALSO
    NOTES


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