Name
mpath_persistent_reserve_out - send PROUT command to DM deviceSynopsis
#include <mpath_persist.h>int mpath_persistent_reserve_out" "(int fd, int rq_servact, struct prin_resp *resp, int noisy, int verbose)
Description
The function in the mpath_persistent_reserve_out () sends PROUT command to the DM device and gets the response.Parameters:
fd The file descriptor of a multipath device. Input argument.
rq_servact PROUT command service action. Input argument.
rq_scope Persistent reservation scope. The value should be always LU_SCOPE (0h).
rq_type Persistent reservation type. The valid values of persistent reservation types are:
5h (Write exclusive - registrants only).
6h (Exclusive access - registrants only).
7h (Write exclusive - All registrants).
8h (Exclusive access - All registrants).
paramp PROUT command parameter data. The paramp is a struct which describes PROUT parameter list. 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 to 3. 0->Crits and Errors, 1->Warnings, 2->Info, 3->Debug.
Returns
MPATH_PR_SUCCESS If PR command successful else returns any one of the status mentioned below.
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).
MPATH_PR_RESERV_CONFLICT If command fails with reservation conflict.