doc: announce changes in crypto raw data vector

The current crypto raw data vectors need to be extended to support
out of place processing. It is proposed to add additional desl_sgl
to provide details for destination sgl.
The same is also 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.singh@nxp.com>
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 4e8ce42..a84760a 100644 (file)
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -170,6 +170,18 @@ Deprecation Notices
   has a limited size ``uint16_t``.
   It will be moved and extended as ``uint32_t`` in DPDK 21.11.
 
+* cryptodev: The structure ``rte_crypto_sym_vec`` would be updated to add
+  ``dest_sgl`` to support out of place processing.
+  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: The interface between library and drivers will be marked
   as internal in DPDK 21.11.