Any thoughts on this?


-----Original Message-----
From: Thomas Monjalon [] 
Sent: Friday, March 9, 2018 3:36 PM
To: Luse, Paul E <>
Cc:; De Lara Guarch, Pablo <>; 
Doherty, Declan <>
Subject: Re: [dpdk-dev] Question on AESNI PMD

Cc Declan and Pablo, the maintainers

09/03/2018 23:08, Luse, Paul E:
> Hi,
> I'm working on an SPDK module that uses the DPDK cryptodev framework, 
> initially I'm using the AESNI PMD and have a few questions. in the doc it 
> says that only in-place is supported however I see code in 
> set_mb_job_params() just after the comment "Mutable crypto operation 
> parameters" it appears to support a separate src and dst m_buf so curious 
> about that.
> For my use case (storage) I'm using external data buffers so I can't use that 
> code anyways but I was able to make some minor changes and am able to pass in 
> different src and dst m_bufs that point to my own data buffers (not in the 
> packet) and it seems to be working fine.
> So my 2 questions are:
> (1) is the documented in-place limitation simply not correct?
> (2) would there be any upstream interest in supporting a patch that enables 
> m_bufs using external data buffers for src and dst?
> Thanks!
> Paul

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