mpath_persistent_reserve_in3

Overview

The function in the mpath_persistent_reserve_in () sends PRIN command to the DM device and gets the response.

Parameters:

fd

The file descriptor of a multipath device. Input argument.

rq_servact

PRIN command service action. Input argument.

resp

The response from PRIN service action. The caller should manage the memory allocation of this structure.

noisy

Turn on debugging trace: Input argument. 0->Disable, 1->Enable.

verbose

Set verbosity level. Input argument. value:[0-3]. 0->Errors, 1->Warnings, 2->Info, 3->Debug.

Returns

MPATH_PR_SUCCESS

If PR command successful.

MPATH_PR_SYNTAX_ERROR

If syntax error or invalid parameter.

MPATH_PR_SENSE_NOT_READY

If command fails with [sk,asc,ascq: 0x2,*,*].

MPATH_PR_SENSE_MEDIUM_ERROR

If command fails with [sk,asc,ascq: 0x3,*,*].

MPATH_PR_SENSE_HARDWARE_ERROR

If command fails with [sk,asc,ascq: 0x4,*,*].

MPATH_PR_SENSE_INVALID_OP

If command fails with [sk,asc,ascq: 0x5,0x20,0x0].

MPATH_PR_ILLEGAL_REQ

If command fails with [sk,asc,ascq: 0x5,*,*].

MPATH_PR_SENSE_UNIT_ATTENTION

If command fails with [sk,asc,ascq: 0x6,*,*].

MPATH_PR_SENSE_ABORTED_COMMAND

If command fails with [sk,asc,ascq: 0xb,*,*].

MPATH_PR_NO_SENSE

If command fails with [sk,asc,ascq: 0x0,*,*].

MPATH_PR_SENSE_MALFORMED

If command fails with SCSI command malformed.

MPATH_PR_FILE_ERROR

If command fails while accessing file (device node) problems(e.g. not found).

MPATH_PR_DMMP_ERROR

If Device Mapper related error.(e.g Error in getting dm info).

MPATH_PR_OTHER

If other error/warning has occurred(e.g transport or driver error).