makecom_g5(9f)

1makecom(9F)              Kernel Functions for Drivers              makecom(9F)
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NAME

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

10       #include <sys/scsi/scsi.h>
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12       void makecom_g0(struct scsi_pkt *pkt, struct scsi_device *devp,
13            int flag, int cmd, int addr, int cnt);
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16       void makecom_g0_s(struct scsi_pkt *pkt, struct scsi_device *devp,
17            int flag, int cmd, int cnt, int fixbit);
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20       void makecom_g1(struct scsi_pkt *pkt, struct scsi_device *devp,
21            int flag, int cmd, int addr, int cnt);
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24       void makecom_g5(struct scsi_pkt *pkt, struct scsi_device *devp,
25            int flag, int cmd, int addr, int cnt);
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INTERFACE LEVEL

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

33       pkt       Pointer to an allocated scsi_pkt(9S) structure.
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36       devp      Pointer to the target's scsi_device(9S) structure.
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39       flag      Flags for the pkt_flags member.
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42       cmd       First byte of a group 0 or 1 or 5 SCSI CDB.
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45       addr      Pointer to the location of the data.
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48       cnt       Data  transfer  length  in  units  defined by the SCSI device
49                 type. For sequential devices cnt is the number of bytes.  For
50                 block devices, cnt is the number of blocks.
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53       fixbit    Fixed bit in sequential access device commands.
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DESCRIPTION

57       The  makecom  functions  initialize a packet with the specified command
58       descriptor block, devp and transport flags. The pkt_address, pkt_flags,
59       and the command descriptor block pointed to by pkt_cdbp are initialized
60       using the remaining arguments. Target drivers may use makecom_g0()  for
61       Group  0  commands  (except  for  sequential  access devices), or make‐
62       com_g0_s() for Group 0 commands for sequential access devices, or make‐
63       com_g1()  for  Group 1 commands,  or makecom_g5() for Group 5 commands.
64       fixbit is used by sequential access devices for accessing  fixed  block
65       sizes and sets the tag portion of the SCSI CDB.
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CONTEXT

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

71       Example 1 Using makecom Functions
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73         if (blkno >= (1<<20)) {
74               makecom_g1(pkt, SD_SCSI_DEVP, pflag, SCMD_WRITE_G1,
75                  (int) blkno, nblk);
76         } else {
77               makecom_g0(pkt, SD_SCSI_DEVP, pflag, SCMD_WRITE,
78                  (int) blkno, nblk);
79         }
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ATTRIBUTES

83       See attributes(5) for a description of the following attributes:
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88       ┌─────────────────────────────┬─────────────────────────────┐
89       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
90       ├─────────────────────────────┼─────────────────────────────┤
91       │Stability Level              │Obsolete                     │
92       └─────────────────────────────┴─────────────────────────────┘
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NOTES

104       The  makecom_g0(), makecom_g0_s(), makecom_g1(), and makecom_g5() func‐
105       tions are obsolete and will be discontinued in a future release.  These
106       functions  have  been  replaced  by  the scsi_setup_cdb() function. See
107       scsi_setup_cdb(9F).
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111SunOS 5.11                        16 Jan 2006                      makecom(9F)