[dpdk-dev] [PATCH 6/6] cryptodev: replace mbuf scatter gather flag

De Lara Guarch, Pablo pablo.de.lara.guarch at intel.com
Mon Jun 25 18:43:28 CEST 2018



> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Akhil Goyal
> Sent: Monday, June 18, 2018 7:30 AM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch at intel.com>; Doherty, Declan
> <declan.doherty at intel.com>; akhil.goyal at nxp.com; ravi1.kumar at amd.com;
> jerin.jacob at caviumnetworks.com; Zhang, Roy Fan <roy.fan.zhang at intel.com>;
> Trahe, Fiona <fiona.trahe at intel.com>; tdu at semihalf.com;
> jianjay.zhou at huawei.com
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH 6/6] cryptodev: replace mbuf scatter gather flag
> 
> Hi Pablo,
> On 6/9/2018 3:32 AM, Pablo de Lara wrote:
> > The current mbuf scatter gatter feature flag is too ambiguous, as it
> > is not clear if input and/or output buffers can be scatter gather
> > mbufs or not.
> >
> > Therefore, two new flags will replace this flag:
> > RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER_IN and
> > RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER_OUT.
> >
> There may be a case, SG supported in input buffer and we use in-place
> processing and driver may support that but may not support SG for out buffers in
> case of OOP. How can we handle this type of case?

Agree. I will send a new version with more flags, so we can cover all scenarios.

Thanks for the feedback!
Pablo



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