[PATCH 0/2] add AES-NI/AVX2/x86_64 implementation

[Tianjia Zhang]

This patchsets exported some of the common functions implemented by
the SM4 AESNI/AVX algorithm, and reused these functions to achieve
the acceleration of AESNI/AVX2 implementation.

The main algorithm implementation comes from SM4 AES-NI work by
libgcrypt and Markku-Juhani O. Saarinen at:
https://github.com/mjosaarinen/sm4ni

Benchmark on Intel i5-6200U 2.30GHz, performance data of three
implementation methods, pure software sm4-generic, aesni/avx
acceleration, and aesni/avx2 acceleration, the data comes from
the 218 mode and 518 mode of tcrypt. The abscissas are blocks of
different lengths. The data is tabulated and the unit is Mb/s:

block-size  |    16      64     128     256    1024    1420    4096
sm4-generic
    ECB enc | 60.94   70.41   72.27   73.02   73.87   73.58   73.59
    ECB dec | 61.87   70.53   72.15   73.09   73.89   73.92   73.86
    CBC enc | 56.71   66.31   68.05   69.84   70.02   70.12   70.24
    CBC dec | 54.54   65.91   68.22   69.51   70.63   70.79   70.82
    CFB enc | 57.21   67.24   69.10   70.25   70.73   70.52   71.42
    CFB dec | 57.22   64.74   66.31   67.24   67.40   67.64   67.58
    CTR enc | 59.47   68.64   69.91   71.02   71.86   71.61   71.95
    CTR dec | 59.94   68.77   69.95   71.00   71.84   71.55   71.95
sm4-aesni-avx
    ECB enc | 44.95  177.35  292.06  316.98  339.48  322.27  330.59
    ECB dec | 45.28  178.66  292.31  317.52  339.59  322.52  331.16
    CBC enc | 57.75   67.68   69.72   70.60   71.48   71.63   71.74
    CBC dec | 44.32  176.83  284.32  307.24  328.61  312.61  325.82
    CFB enc | 57.81   67.64   69.63   70.55   71.40   71.35   71.70
    CFB dec | 43.14  167.78  282.03  307.20  328.35  318.24  325.95
    CTR enc | 42.35  163.32  279.11  302.93  320.86  310.56  317.93
    CTR dec | 42.39  162.81  278.49  302.37  321.11  310.33  318.37
sm4-aesni-avx2
    ECB enc | 45.19  177.41  292.42  316.12  339.90  322.53  330.54
    ECB dec | 44.83  178.90  291.45  317.31  339.85  322.55  331.07
    CBC enc | 57.66   67.62   69.73   70.55   71.58   71.66   71.77
    CBC dec | 44.34  176.86  286.10  501.68  559.58  483.87  527.46
    CFB enc | 57.43   67.60   69.61   70.52   71.43   71.28   71.65
    CFB dec | 43.12  167.75  268.09  499.33  558.35  490.36  524.73
    CTR enc | 42.42  163.39  256.17  493.95  552.45  481.58  517.19
    CTR dec | 42.49  163.11  256.36  493.34  552.62  481.49  516.83

>From the benchmark data, it can be seen that when the block size is
1024, compared to AVX acceleration, the performance achieved by AVX2
has increased by about 70%, it is also 7.7 times of the pure software
implementation of sm4-generic.

Tianjia Zhang (2):
  crypto: x86/sm4 - export reusable AESNI/AVX functions
  crypto: x86/sm4 - add AES-NI/AVX2/x86_64 implementation

 arch/x86/crypto/Makefile                |   3 +
 arch/x86/crypto/sm4-aesni-avx2-asm_64.S | 497 ++++++++++++++++++++++++
 arch/x86/crypto/sm4-avx.h               |  24 ++
 arch/x86/crypto/sm4_aesni_avx2_glue.c   | 169 ++++++++
 arch/x86/crypto/sm4_aesni_avx_glue.c    |  92 +++--
 crypto/Kconfig                          |  22 ++
 6 files changed, 775 insertions(+), 32 deletions(-)
 create mode 100644 arch/x86/crypto/sm4-aesni-avx2-asm_64.S
 create mode 100644 arch/x86/crypto/sm4-avx.h
 create mode 100644 arch/x86/crypto/sm4_aesni_avx2_glue.c

-- 
2.19.1.3.ge56e4f7