Re: Openswan 2.4.9 - tasklet or workqueue ?

[David McCullough <David_Mccullough@securecomputing.com>]

Jivin Kabir Ahsan-r9aahw lays it down ...
> We can also do direct function call of ipsec_xsm or ipsec_rsm instead
> of using tasklet. 

Care to come up with something that still works for 2.4 but it targetted
more at 2.6 ?  I wasn't all the happy with the double function thing
going on there,

Cheers,
Davidm


> -----Original Message-----
> From: linux-crypto-owner@vger.kernel.org [mailto:linux-crypto-owner@vger.kernel.org] On Behalf Of Eran Ben-Avi
> Sent: Thursday, August 30, 2007 2:58 AM
> To: David McCullough
> Cc: linux-crypto@vger.kernel.org
> Subject: Re: Openswan 2.4.9 - tasklet or workqueue ?
> 
> 
> --- David McCullough
> <David_Mccullough@securecomputing.com> wrote:
> 
> > 
> > 
> > 
> > Jivin Eran Ben-Avi lays it down ...
> > > Hi,
> > > 
> > > I tested IPSec(tunnel mode) routing performance
> > between 2 GbE ports using packet generator(SMARTBIT)  on ARM 500MHz 
> > with latest OCF patched on
> > Openswan2.4.9 and I noticed the callback functions are using 
> > workqueue.
> > > Since RX was performed in NAPI mode with higher
> > priority then TX (in workqueue), the callback function(in ipsec_ocf.c) 
> > was starved with zero routing.
> > > The problem was solved after I switched to use
> > tasklet instead of the workqueue.
> > > Is there a room for updating next OCF release ?
> > 
> > Sure,  send in a patch. This is against
> > ocf-linux-20070727 right ?
> Yes.
> Can you please estimate when next release will be ready?
> 
> Thanks. 
> 
> > 
> > Cheers,
> > Davidm
> > 
> > --
> > David McCullough, 
> > david_mccullough@securecomputing.com,   Ph:+61
> > 734352815
> > Secure Computing - SnapGear  http://www.uCdot.org 
> > http://www.cyberguard.com
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> 
> 
> 
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-- 
David McCullough,  david_mccullough@securecomputing.com,   Ph:+61 734352815
Secure Computing - SnapGear  http://www.uCdot.org http://www.cyberguard.com