hifn(4) and openssl

Hello,

I'm playing with a miniPCI hifn card on some embedded hardware (WRAP /
pcengines.ch) currently running NetBSD 4.0_BETA2.

[...]
hifn0 at pci0 dev 13 function 0: Hifn 7955, rev. 0
hifn0: 3DES/AES, 32KB dram, interrupting at irq 12
[...]

I ran openssl speed -engine cryptodev aes-256-cbc (it's just a guess i'm not
sure cryptodev is the correct engine, i see ubsec but no hifn engine)

here are the result :

with hifn(4) :

root@earthprout:~ # openssl speed -engine cryptodev aes-256-cbc
engine "cryptodev" set.
To get the most accurate results, try to run this
program when this computer is idle.
Doing aes-256 cbc for 3s on 16 size blocks: 258865 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 64 size blocks: 68090 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 256 size blocks: 17289 aes-256 cbc's in 3.01s
Doing aes-256 cbc for 3s on 1024 size blocks: 4334 aes-256 cbc's in 3.00s
Doing aes-256 cbc for 3s on 8192 size blocks: 538 aes-256 cbc's in 3.01s
OpenSSL 0.9.8d 28 Sep 2006
built on: NetBSD 4.0_BETA2
options:bn(32,32) md2(int) rc4(ptr,int) des(ptr,risc2,16,long) aes(partial)
blowfish(ptr2)
compiler: gcc version 4.1.2 20061021 (prerelease) (NetBSD nb3 20061125)
available timing options: USE_TOD HZ=100 [sysconf value]
timing function used: getrusage
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
aes-256 cbc       1378.20k     1449.54k     1472.44k     1477.68k     1464.71k


without hifn(4) (on the same hardware configuration) :

root@airprout:~ # openssl speed -engine cryptodev aes-256-cbc
engine "cryptodev" set.
To get the most accurate results, try to run this
program when this computer is idle.
Doing aes-256 cbc for 3s on 16 size blocks: 259050 aes-256 cbc's in 2.99s
Doing aes-256 cbc for 3s on 64 size blocks: 68226 aes-256 cbc's in 3.00s
Doing aes-256 cbc for 3s on 256 size blocks: 17312 aes-256 cbc's in 3.00s
Doing aes-256 cbc for 3s on 1024 size blocks: 4343 aes-256 cbc's in 3.00s
Doing aes-256 cbc for 3s on 8192 size blocks: 538 aes-256 cbc's in 3.00s
OpenSSL 0.9.8d 28 Sep 2006
built on: NetBSD 4.0_BETA2
options:bn(32,32) md2(int) rc4(ptr,int) des(ptr,risc2,16,long) aes(partial)
blowfish(ptr2)
compiler: gcc version 4.1.2 20061021 (prerelease) (NetBSD nb3 20061125)
available timing options: USE_TOD HZ=100 [sysconf value]
timing function used: getrusage
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
aes-256 cbc       1385.46k     1457.41k     1475.07k     1480.83k     1470.06k

so without hifn(4) is often faster and there is no "unloading" of the CPU on the
hifn(4) card, the load is identical on both.

checking with ktruss and looking at crypto(4), i see no ioctl(CIOCCRYPT) during
the openssl speed test, am i doing things right ? do I miss something ?

Regards,
Eric.

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