Filter
Top Products
Security Software—Software Overview
Intel
®
EP80579 Software for Security Applications on Intel
®
QuickAssist Technology
PG August 2009
16 Order Number: 320183-004US
The software components at this layer in the current release are as follows:
• Lookaside Crypto Access Layer: This component implements the Cryptographic API
(shown as LAC API in Figure 3). It manages the exchange of data and messages
between the Cryptographic API and the SSU driver firmware running on the ASU.
See Chapter 4.0, “Intel® QuickAssist Technology Cryptographic API Architecture
Overview” for more details.
• QAT Access Layer: This component implements the configuration and control of the
SSU driver firmware running on the ASU. It also provides an interface for the
Lookaside Crypto Access Layer to communicate with the SSU driver firmware. See
Chapter 5.0, “QAT Access Layer Architecture Overview” for more details.
• Debug Infrastructure: This component provides access to data which can be used
to help debug an application running on EP80579 with QuickAssist. It allows
version information to be queried, “liveness” of components to be polled, data
dumps to be generated which can be analyzed offline, and other debug-related
features. See Chapter 6.0, “Debug Component Architecture Overview” for more
details.
Note: The Data Dump feature is not supported in the current software release.
Most of the layers above also provide APIs. These are described in more detail in the
chapters which comprise Part 2: “Using the API” on page 41.
3.3.3 Infrastructure
This layer consists of the following components:
• The Hardware Services Layer (HSL) component manages the low-level hardware
blocks required for communication with the ASU. This also provides an interface for
exchanging messages with the ASU via rings.
• The Operating System Abstraction Layer (OSAL) component provides OS-specific
services. It is used by many of the components to remove their dependency on a
particular OS and allow for easier porting to new OSes.
3.3.4 Acceleration System Driver (ASD)
The ASD is a system device driver which is responsible for loading firmware and
configuring all the components that comprise the EP80579 security software. It
initializes the Cryptographic API Library, providing it with all necessary information
about the enumeration of the Acceleration Services Unit and any Access library specific
Figure 3. Acceleration Access Layer and Acceleration APIs
Infrastructure
Lookaside
Crypto Access
Layer
Cryptographic
(LAC) API
Debug
Infrastructure
DCC
API
QAT- AL