ata_sas_queuecmd(9) [suse man page]

ATA_SAS_QUEUECMD(9)					  libata SCSI translation/emulat				       ATA_SAS_QUEUECMD(9)

NAME

       ata_sas_queuecmd - Issue SCSI cdb to libata-managed device

SYNOPSIS

       int ata_sas_queuecmd(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *), struct ata_port * ap);

ARGUMENTS

       cmd
	   SCSI command to be sent

       done
	   Completion function, called when command is complete

       ap
	   ATA port to which the command is being sent

RETURNS

       Return value from __ata_scsi_queuecmd if cmd can be queued, 0 otherwise.

AUTHOR

       Jeff Garzik
	   Author.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						       ATA_SAS_QUEUECMD(9)

makecom(9F)						   Kernel Functions for Drivers 					       makecom(9F)

NAME

       makecom, makecom_g0, makecom_g0_s, makecom_g1, makecom_g5 - make a packet for SCSI commands

SYNOPSIS

       #include <sys/scsi/scsi.h>

       void makecom_g0(struct scsi_pkt *pkt, struct scsi_device *devp,
	    int flag, int cmd, int addr, int cnt);

       void makecom_g0_s(struct scsi_pkt *pkt, struct scsi_device *devp,
	    int flag, int cmd, int cnt, int fixbit);

       void makecom_g1(struct scsi_pkt *pkt, struct scsi_device *devp,
	    int flag, int cmd, int addr, int cnt);

       void makecom_g5(struct scsi_pkt *pkt, struct scsi_device *devp,
	    int flag, int cmd, int addr, int cnt);

INTERFACE LEVEL

       These interfaces are obsolete. scsi_setup_cdb(9F) should be used instead.

PARAMETERS

       pkt	 Pointer to an allocated scsi_pkt(9S) structure.

       devp	 Pointer to the target's scsi_device(9S) structure.

       flag	 Flags for the pkt_flags member.

       cmd	 First byte of a group 0 or 1 or 5 SCSI CDB.

       addr	 Pointer to the location of the data.

       cnt	 Data  transfer  length  in  units  defined  by the SCSI device type. For sequential devices cnt is the number of bytes. For block
		 devices, cnt is the number of blocks.

       fixbit	 Fixed bit in sequential access device commands.

DESCRIPTION

       The makecom functions initialize a packet with the  specified  command  descriptor  block,  devp  and  transport  flags.  The  pkt_address,
       pkt_flags,  and	the  command descriptor block pointed to by pkt_cdbp are initialized using the remaining arguments. Target drivers may use
       makecom_g0() for Group 0 commands (except for sequential access devices), or makecom_g0_s() for Group  0  commands  for	sequential  access
       devices,  or  makecom_g1()  for	Group  1  commands,  or makecom_g5() for Group 5 commands. fixbit is used by sequential access devices for
       accessing fixed block sizes and sets the tag portion of the SCSI CDB.

CONTEXT

       These functions can be called from user, interrupt, or kernel context.

EXAMPLES

       Example 1 Using makecom Functions

	 if (blkno >= (1<<20)) {
	       makecom_g1(pkt, SD_SCSI_DEVP, pflag, SCMD_WRITE_G1,
		  (int) blkno, nblk);
	 } else {
	       makecom_g0(pkt, SD_SCSI_DEVP, pflag, SCMD_WRITE,
		  (int) blkno, nblk);
	 }

ATTRIBUTES

       See attributes(5) for a description of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Stability Level 	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5), scsi_setup_cdb(9F), scsi_device(9S), scsi_pkt(9S)

       ANSI Small Computer System Interface-2 (SCSI-2)

       Writing Device Drivers

NOTES

       The makecom_g0(), makecom_g0_s(), makecom_g1(), and makecom_g5() functions are obsolete and will be discontinued in a future release. These
       functions have been replaced by the scsi_setup_cdb() function. See scsi_setup_cdb(9F).

SunOS 5.11							    16 Jan 2006 						       makecom(9F)