CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not available for the selected architecture x86.
Result is shown for architecture 64BIT or x86

Ciphers: Serpent with modes: ECB, CBC (AVX2)

modulename: serpent-avx2.ko

configname: CONFIG_CRYPTO_SERPENT_AVX2_X86_64

Linux Kernel Configuration
└─>Accelerated Cryptographic Algorithms for CPU (x86)
└─>Ciphers: Serpent with modes: ECB, CBC (AVX2)
In linux kernel since version 3.1 (release Date: 2011-10-24)
Length-preserving ciphers: Serpent cipher algorithm
with ECB and CBC modes

Architecture: x86_64 using:
- AVX2 (Advanced Vector Extensions 2)

Processes 16 blocks in parallel.
source code: