The Application Accelerator Unit, or AAU, provides hardware-assisted support for performing block fills on a region of memory, XOR of multiple regions of memory (parity computation), and parity verification.
The
iopaau driver supports the Application Accelerator Units on the following Intel I/O Processors:
•
Intel i80321 I/O Processor
The
iopaau driver provides a back-end to the
dmover(9) interface, and supports the following
dmover(9) functions:
zero
Zero a region of memory
fill8
Fill a region of memory with an 8-bit value
copy
Copy a region of memory
xor2
Perform an XOR of 2 input streams
xor3
Perform an XOR of 3 input streams
xor4
Perform an XOR of 4 input streams
xor5
Perform an XOR of 5 input streams
xor6
Perform an XOR of 6 input streams
xor7
Perform an XOR of 7 input streams
xor8
Perform an XOR of 8 input streams