Ciphers: ChaCha20

modulename: chacha_s390.ko

configname: CONFIG_CRYPTO_CHACHA_S390

Linux Kernel Configuration
└─>Cryptographic API
└─>Accelerated Cryptographic Algorithms for CPU (s390)
└─>Ciphers: ChaCha20
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Length-preserving cipher: ChaCha20 stream cipher (RFC 7539)

Architecture: s390

It is available as of z13.