Encryption acceleration support on pSeries platform

modulename: nx-crypto.ko

configname: CONFIG_CRYPTO_DEV_NX_ENCRYPT

Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>Encryption acceleration support on pSeries platform
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Support for PowerPC Nest (NX) encryption acceleration. This
module supports acceleration for AES and SHA2 algorithms on
the pSeries platform. If you choose 'M' here, this module
will be called nx_crypto.

source code: