Teledyne LeCroy SAS Verification Test Descriptions - Manual (Page 42)

The University of New Hampshire
InterOperability Laboratory
Serial Attached SCSI Consortium
41 SAS Link and Transport Layer Test Suite v0.13
Test 9.3.5 - SSP Data IU – DATA OFFSET
Purpose: To determine that the DUT, an SSP Target port, properly sets the DATA OFFSET field when transmitting
DATA frames.
References:
9.2.2.4 SAS Standard
Resource Requirements: SAS Protocol Analyzer and Generator.
Revision History: February 7, 2005
Test Setup: The DUT and the Testing Station are physically connected.
Test Procedure (SSP Target):
• The Testing Station should start and complete a Phy Reset sequence followed by an Identify sequence
with the DUT. Since the DUT is a target the Testing Station should transmit an Identify Address frame
indicating that it is a SAS Initiator.
• The Testing Station should open an SSP connection to the DUT and transmit a SCSI READ_BUFFER
command for 3836 bytes. Close the connection
• Allow the DUT to open an SSP connection to the Testing Station and transmit DATA frames and a
SCSI response frame to the received command.
Observable Results: Verify that if the DUT sets the DATA OFFSET field to zero in the first DATA frame, then
sets the DATA OFFSET field in subsequent DATA frames to the value of the previous frames DATA OFFSET field
plus the data length of the previous frame.