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:


Huffman code type:


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.