Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
probe::scsi.ioentry - Prepares a SCSI mid-layer request
SYNOPSIS
scsi.ioentry
VALUES
disk_minor
The minor number of the disk (-1 if no information)
device_state
The current state of the device
req_addr
The current struct request pointer, as a number
disk_major
The major number of the disk (-1 if no information)
device_state_str
The current state of the device, as a string
SystemTap Tapset Reference March 2016 PROBE::SCSI.IOENTR(3stap)