4. Marvell NITROX Compression Poll Mode Driver

The Nitrox compression poll mode driver provides support for offloading compression and decompression operations to the NITROX V processor. Detailed information about the NITROX V processor can be obtained here:

4.1. Features

NITROX V compression PMD has support for:

Compression/Decompression algorithm:


Huffman code type:


Window size support:

  • Min - 2 bytes
  • Max - 32KB

Checksum generation:

  • CRC32, Adler

4.2. Limitations

  • Compressdev level 0, no compression, is not supported.

4.3. Initialization

Nitrox compression PMD depends on Nitrox kernel PF driver being installed on the platform. Nitrox PF driver is required to create VF devices which will be used by the PMD. Each VF device can enable one compressdev PMD.

Nitrox kernel PF driver is available as part of CNN55XX-Driver SDK. The SDK and its installation instructions can be obtained from: Marvell Customer Portal.