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>
Acked-by: Konstantin Ananyev <konstantin.anan...@intel.com>
---
doc/guides/rel_notes/deprecation.rst | 7 -------
doc/guides/rel_notes/release_21_11.rst | 6 ++++++
lib/cryptodev/rte_crypto_sym.h | 4 ++++
3 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/doc/guides/rel_notes/deprecation.rst
b/doc/guides/rel_notes/deprecation.rst
index 09b54fdef3..0e04ecf743 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -179,13 +179,6 @@ 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/doc/guides/rel_notes/release_21_11.rst
b/doc/guides/rel_notes/release_21_11.rst
index 256037b639..ba036c5b3f 100644
--- a/doc/guides/rel_notes/release_21_11.rst
+++ b/doc/guides/rel_notes/release_21_11.rst
@@ -232,6 +232,12 @@ API Changes
* cryptodev: The field ``dataunit_len`` of the ``struct
rte_crypto_cipher_xform``
moved to the end of the structure and extended to ``uint32_t``.
+* cryptodev: The structure ``rte_crypto_vec`` 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.
+
ABI Changes
-----------
diff --git a/lib/cryptodev/rte_crypto_sym.h b/lib/cryptodev/rte_crypto_sym.h
index f8cb2ccca0..1f2f0a572c 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;
};
/**
@@ -963,6 +965,7 @@ rte_crypto_mbuf_to_vec(const struct rte_mbuf *mb, uint32_t
ofs, uint32_t len,
vec[0].base = rte_pktmbuf_mtod_offset(mb, void *, ofs);
vec[0].iova = rte_pktmbuf_iova_offset(mb, ofs);
+ vec[0].tot_len = mb->buf_len - rte_pktmbuf_headroom(mb) - ofs;
/* whole data lies in the first segment */
seglen = mb->data_len - ofs;
@@ -978,6 +981,7 @@ rte_crypto_mbuf_to_vec(const struct rte_mbuf *mb, uint32_t
ofs, uint32_t len,
vec[i].base = rte_pktmbuf_mtod(nseg, void *);
vec[i].iova = rte_pktmbuf_iova(nseg);
+ vec[i].tot_len = mb->buf_len - rte_pktmbuf_headroom(mb) - ofs;
seglen = nseg->data_len;
if (left <= seglen) {
--
2.17.1
