Avery SCSI-Xactor: IP Verification Solution for SCSI Express

Avery
Design
Systems
Inc.
announced its SCSI-Xactor verification IP targeting SCSI Express for PCIe-based SSDs.

This solutions extends their
portfolio of storage-related VIP which includes NVM Express, USB
Attached SCSI (UASP), USB Mass Storage Class Bulk-Only Transport
(BOT), MIPI Universal flash Storage (UFS), and SATA.

The product is based on the
standards work of INCITS T10’s SOP-PQI working group and the SCSI
Trade Association. The protocol is based on the SCSI over PCIe (SOP)
host interface specification which enables SCSI initiators
communicating to SCSI targets over PCIe through the PQI transfer
layer. This protocol will enable SCSI devices to utilize the faster
PCIe transport required to meet the demand in next generation
enterprise designs.

SCSI-Xactor is a verification
solution for SCSI Express core and system design. SCSI -Xactor allows
design and verification engineers to quickly test the functionality
of SCSI Express controller-based designs.

The SCSI -Xactor
solution includes:

• SCSI Express host software BFM
• SCSI Express host and controller
  bus adaptor
• Reference SCSI Express controller
  and adaptor for emulating SCSI targets
• Producer-consumer scoreboard
• Compliance testsuite
• Comprehensive protocol checks
• Protocol analyzer tracker
• Functional coverage model
• Works with any PCIe and AXI IP or
  VIP

It works in conjunction with
PCI-Xactor PCI Express Verification IP solution to supply a SCSI
Express subsystem verification environment. A SCSI Express bus
adaptor layer enables the SCSI Express host software BFM to hook up
to any bus interface such as PCIe and AMBA AXI and enables running
the SCSI Express host software BFM with or without the PCIe root
complex and endpoint IP stacks yielding faster simulation performance
for large data movement in both SCSI Express core-level and SOC-level
verification environments. A reference SCSI Express controller
supports core-level verification by emulating the NAND flash backend
subsystem.

Models and compliance test suites
are developed in SystemVerilog and support UVM, OVM, and VMM
environments.

"Avery is focused on
delivering industry leading VIP for the rapidly emerging SSD and
other storage-related standards built on top of PCIe, USB, and MIPI
base protocols,"says Chilai Huang, president of Avery Design
Systems. "Our solution enables designers to thoroughly verify
their designs functionally adhere to the new SCSI Express standard
and effectively pinpoint areas of non-compliance or performance
bottlenecks."