tran_dmafree(9e) 맨 페이지 - 윈디하나의 솔라나라

개요

섹션
맨 페이지 이름
검색(S)

tran_dmafree(9e)

tran_dmafree(9E)              Driver Entry Points             tran_dmafree(9E)



NAME
       tran_dmafree - SCSI HBA DMA deallocation entry point

SYNOPSIS
       #include <sys/scsi/scsi.h>

        void prefixtran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt);

INTERFACE LEVEL
       Solaris architecture specific (Solaris DDI).

ARGUMENTS
       ap     A pointer to a scsi_address structure. See scsi_address(9S).


       pkt    A pointer to a scsi_pkt structure. See scsi_pkt(9S).


DESCRIPTION
       The  tran_dmafree()  vector in the scsi_hba_tran structure must be ini‐
       tialized during the HBA driver's attach() to  point  to  an  HBA  entry
       point  to  be  called  when a target driver calls scsi_dmafree(9F). See
       attach(9E) and scsi_hba_tran(9S).


       tran_dmafree() must deallocate any DMA resources  previously  allocated
       to  this  pkt in a call to tran_init_pkt(9E). tran_dmafree() should not
       free the structure pointed to by pkt itself. Since tran_destroy_pkt(9E)
       must also free DMA resources, it is important that the HBA driver keeps
       accurate note of whether scsi_pkt(9S)  structures  have  DMA  resources
       allocated.

SEE ALSO
       attach(9E),  tran_destroy_pkt(9E), tran_init_pkt(9E), scsi_dmafree(9F),
       scsi_dmaget(9F),        scsi_hba_attach(9F),         scsi_init_pkt(9F),
       scsi_address(9S), scsi_hba_tran(9S), scsi_pkt(9S)


       Writing Device Drivers in Oracle Solaris 11.4

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



Oracle Solaris 11.4               30 Aug 1995                 tran_dmafree(9E)
맨 페이지 내용의 저작권은 맨 페이지 작성자에게 있습니다.
RSS ATOM XHTML 5 CSS3