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Name

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

Solaris DDI specific (Solaris DDI).

Arguments

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

Number of bytes to transfer.

fixbit

Fixed bit in sequential access device commands.

Description

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 the tag portion of the SCSI CDB.

Context

Example

    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);
    }

See Also

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

Table of Contents

• Name
• Synopsis
• Interface Level
• Arguments
• Description
• Context
• Example
• See Also