Re: [Ocf-linux-users] ocf-bench generates "Error in OCF processing: 5" using talitos SEC driver

[David M. <dav...@mc...>]

Jivin 张绪峰 lays it down ...
> Hi All,
> 
> I have found a bug to run ocf-bench on ocf talitos driver.
> the request_size should not be 1500, because it is not a multiple of 64 bits while DEU data
> size register need it to be, or DEU will generate error interrupt.

Ok,  there is a patch for a newer version of ocf (depending on which version
you are running) that already addresses this.

Read http://sourceforge.net/mailarchive/message.php?msg_id=26796850 and get
the patch http://sourceforge.net/mailarchive/attachment.php?list_name=ocf-linux-users&message_id=20101222154234.GA25009%40mcafee.com&counter=1

This patch is aginst version ocf-linux-20100325,  so if you are not running
that version you may have some problems with the patch.

> But I still have another error interrupt need to be resolved, that's channel_1 CCPSR Error 50.
> from the 8548e datasheet, I get this description:
> -----------------------------------------------------------------------------------
> Error value 50:
> MDTE. A master data transfer error was received from the master bus interface. When the SEC, while acting
> as a bus master, detects an error, the controller passes the error to the channel in use. The channel halts and
> activates an interrupt. The channel can only be restarted by writing a ??1?? to the continue or reset bit in the
> channel configuration register, or resetting the whole SEC.
> -----------------------------------------------------------------------------------
> But this don't mean much to me, how can I determine which cause this error?

I have no idea on this one, sorry,  sounds like something is making the
hardware unhappy.  Could be the buffers ocf-bench is passing down or
something wrong within the driver,  no idea really.

Cheers,
Davidm


> At 2011-04-14 14:24:47,"David McCullough" <dav...@mc...> wrote:
> 
> >
> >Jivin ??? lays it down ...
> >> Hi experts,
> >> 
> >> I met some difficulties to run ocf-bench.ko on talitos SEC driver.
> >> It always generate errors "Error in OCF processing: 5" when run "insmod ocf-bench.ko" on 8548e board.
> >> 
> >> How to reproduce:
> >> 1. configure "CONFIG_CRYPTO_DEV_TALITOS=n" "CONFIG_OCF_TALITOS=m"
> >>                     "CONFIG_OCF_OCF=y" "CONFIG_OCF_CRYPTODEV=y" "CONFIG_OCF_BENCH=m"
> >> 2. build the kernel and boot the 8548e board.
> >> 3. insmod talitos.ko
> >> 4. insmod ocf-bench.ko
> >> Then I got such errors "Error in OCF processing: 5". 
> >> I know it is due to SEC h/w receive error interrupts during request processing,
> >> and the error bits in Channel_1 CCPSR register is 50 and 55. But I don't know how to do with it.
> >> 
> >> I also run some openssl speed test such as "openssl speed -evp des -elapsed" on ocf talitos driver, 
> >> it seems work fine, no error interrupt happens.
> >> 
> >> So I want to know why this problem could happen? 
> >> Any advice would be appreciated, thanks in advance!
> >
> >So it sounds like it's working but ocf-bench is causing the driver
> >headaches.
> >
> >Which version of ocf are you using ?
> >
> >Check through the ocf-bench code for something like this:
> >
> >	if (request_batch)
> >		crp->crp_flags |= CRYPTO_F_BATCH;
> >	if (request_cbimm)
> >		crp->crp_flags |= CRYPTO_F_CBIMM;
> >
> >If you have it then good,  otherwise you need to find where crp->crp_flags
> >is set and try setting it to one of the following:
> >
> >		crp->crp_flags = (CRYPTO_F_BATCH|CRYPTO_F_CBIMM);
> >		crp->crp_flags = CRYPTO_F_CBIMM;
> >		crp->crp_flags = CRYPTO_F_BATCH;
> >		crp->crp_flags = 0;
> >
> >That may fix it. Also,  the latest ocf-bench does an SHA1/AES test,  just in
> >case that is confusing you with des working above.  So not only does it use
> >AES but it also hashes at the same time.  Could be something to look into.
> >
> >Cheers,
> >Davidm
> >
> >-- 
> >David McCullough,      dav...@mc...,  Ph:+61 734352815
> >McAfee - SnapGear      http://www.mcafee.com         http://www.uCdot.org
> 
> 
> 
> 

-- 
David McCullough,      dav...@mc...,  Ph:+61 734352815
McAfee - SnapGear      http://www.mcafee.com         http://www.uCdot.org