[dpdk-dev] [PATCH] cryptodev: add API note

[Declan Doherty]

On 23/03/2017 5:36 PM, Fiona Trahe wrote:
> Add note to cryptodev API that chained mbufs
> are not supported in DOCSISBPI mode.
>
> Signed-off-by: Fiona Trahe <fiona.trahe at intel.com>
> ---
...
>


Hey Fiona,

Is this really a limitation of DOCSISBPI mode or just the PMDs which 
currently support these operations. I don't see any reason why DOCSISBPI 
mode cipher operation precludes scatter gather operations on the source 
payload.

If there is some fundamental reason why scatter gather operations can't 
be supported I think documenting this in the rte_crypto_cipher_algorithm 
enumeration comments make more sense than in the rte_crypto_sym_op 
structure, as we already specify extra requirements 
RTE_CRYPTO_CIPHER_AES_GCM and RTE_CRYPTO_CIPHER_AES_CCM there.