[PATCH v1 0/3] crypto: powerpc/md5
The following patches add support for optimized MD5
calculation on PPC processors. It completes the previous
patches to provide a comprehensive IPsec algorithm support
for low power routers without hardware crypto acceleration.
The implementation is endian independant. Although only
tested on 32 bit CPU it should run on 64 bit too.
Performance numbers from insmod tcrypt sec=3 mode=302 taken
on e500v2 800 MHz (TP Link WDR4900)
data per generic this patch speedup cycles
length update bytes/sec bytes/sec factor per byte
------ ------ ----------- ---------- ------- --------
16 16 14,131,578 16,019,173 x1.13 49.94
64 16 24,003,093 25,642,282 x1.07 31.20
64 64 36,445,269 43,124,074 x1.18 18.55
256 16 32,454,144 33,569,194 x1.03 23.83
256 64 57,306,965 67,855,104 x1.18 11.79
256 256 71,010,304 91,093,333 x1.28 8.78
1024 16 35,902,122 36,451,328 x1.02 21.95
1024 256 86,229,674 113,111,722 x1.31 7.07
1024 1024 93,883,733 127,357,952 x1.36 6.28
2048 16 36,175,189 36,937,728 x1.02 21.66
2048 256 89,539,242 118,392,832 x1.32 6.76
2048 1024 97,499,136 133,113,856 x1.37 6.01
2048 2048 99,198,976 136,406,357 x1.38 5.86