4. Intel(R) QuickAssist (QAT) Compression Poll Mode Driver

The QAT compression PMD provides poll mode compression & decompression driver support for the following hardware accelerator devices:

• Intel QuickAssist Technology C62x
• Intel QuickAssist Technology C3xxx

4.1. Features

QAT compression PMD has support for:

Compression/Decompression algorithm:

• DEFLATE

Huffman code type:

• FIXED

Window size support:

• 32K

Checksum generation:

• CRC32, Adler and combined checksum

4.2. Limitations

• Compressdev level 0, no compression, is not supported.
• Dynamic Huffman encoding is not yet supported.

4.3. Installation

The QAT compression PMD is built by default with a standard DPDK build.

It depends on a QAT kernel driver, see Dependency on the QAT kernel driver.