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#1 (**permalink**) 02-16-2008, 04:32 AM

Hi All,

I have a Broadcom encryption accelerator in my motherboard (BCM 5823). I
have modified the ubsec source and recompiled the kernel to support the 5823
chip. I now want to test it but don't really know how to go about testing
whether the chip is actually accelerating encryption functions.

I have checked the /var/run/dmesg.boot file and the 5823 is now being
identified properly (after my changes). The files I changed were ubsec.c
pcidevs pcidevs.h and pcidevs_data.h in the /usr/src/sys/dev/pci directory.

Any ideas how I could do a quick and easy test to see if the chip is
working?

Thanks,

Jim

#2 (**permalink**) 02-16-2008, 04:32 AM

On Fri, 29 Aug 2003, Jim Lambert wrote:

> I have a Broadcom encryption accelerator in my motherboard (BCM 5823). I
> have modified the ubsec source and recompiled the kernel to support the 5823
> chip. I now want to test it but don't really know how to go about testing
> whether the chip is actually accelerating encryption functions.

openssl speed des with sysctl kern.usercrypto on and off should be a good
test.

--
"The contagious people of Washington have stood firm against diversity
during this long period of increment weather."
- M. Barry, Mayor of Washington, DC

#3 (**permalink**) 02-16-2008, 04:33 AM

"Ted Unangst" <tedu@stanford.edu> wrote in message
news:Pine.GSO.4.44.0308291517010.29526-100000@saga7.Stanford.EDU...
> On Fri, 29 Aug 2003, Jim Lambert wrote:
>
> > I have a Broadcom encryption accelerator in my motherboard (BCM 5823).
I
> > have modified the ubsec source and recompiled the kernel to support the
5823
> > chip. I now want to test it but don't really know how to go about
testing
> > whether the chip is actually accelerating encryption functions.
>
> openssl speed des with sysctl kern.usercrypto on and off should be a good
> test.

Thanks.

I forgot to post a follow-up last Friday, but did figure out I could do an
openssl 3des encryption of a big (140MB) file and see the differences. CPU
time went from 62 seconds to 0.20 seconds after compiling in the support so
I am assuming it is working. :-)

Jim

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Testing ubsec