> From: Gagandeep Singh <g.si...@nxp.com>
>
> The current crypto raw data vectors is extended to support
> rte_security usecases, where we need total data length to know
> how much additional memory space is available in buffer other
> than data length so that driver/HW can write expanded size
> data after encryption.
>
> Signed-off-by: Gagandeep Singh <g.si...@nxp.com>
> Acked-by: Akhil Goyal <gak...@marvell.com>
> ---
> doc/guides/rel_notes/deprecation.rst | 7 -------
> lib/cryptodev/rte_crypto_sym.h | 6 ++++++
> 2 files changed, 6 insertions(+), 7 deletions(-)
>
> diff --git a/doc/guides/rel_notes/deprecation.rst
> b/doc/guides/rel_notes/deprecation.rst
> index f3c998a655..4b26ef6747 100644
> --- a/doc/guides/rel_notes/deprecation.rst
> +++ b/doc/guides/rel_notes/deprecation.rst
> @@ -211,13 +211,6 @@ Deprecation Notices
> This field will be null for inplace processing.
> This change is targeted for DPDK 21.11.
>
> -* cryptodev: The structure ``rte_crypto_vec`` would be updated to add
> - ``tot_len`` to support total buffer length.
> - This is required for security cases like IPsec and PDCP encryption offload
> - to know how much additional memory space is available in buffer other
> than
> - data length so that driver/HW can write expanded size data after
> encryption.
> - This change is targeted for DPDK 21.11.
> -
> * cryptodev: Hide structures ``rte_cryptodev_sym_session`` and
> ``rte_cryptodev_asym_session`` to remove unnecessary indirection
> between
> session and the private data of session. An opaque pointer can be exposed
> diff --git a/lib/cryptodev/rte_crypto_sym.h
> b/lib/cryptodev/rte_crypto_sym.h
> index dcc0bd5933..e5cef1fb72 100644
> --- a/lib/cryptodev/rte_crypto_sym.h
> +++ b/lib/cryptodev/rte_crypto_sym.h
> @@ -37,6 +37,8 @@ struct rte_crypto_vec {
> rte_iova_t iova;
> /** length of the data buffer */
> uint32_t len;
> + /** total buffer length*/
> + uint32_t tot_len;
> };
>
> /**
> @@ -980,12 +982,14 @@ rte_crypto_mbuf_to_vec(const struct rte_mbuf
> *mb, uint32_t ofs, uint32_t len,
> seglen = mb->data_len - ofs;
> if (len <= seglen) {
> vec[0].len = len;
> + vec[0].tot_len = mb->buf_len;
> return 1;
> }
>
> /* data spread across segments */
> vec[0].len = seglen;
> left = len - seglen;
> + vec[0].tot_len = mb->buf_len;
I think you missed to update the tot_len as per Konstantin's suggestion.
