diff mbox series

[v3,03/24] security: add hfn override option in PDCP

Message ID 20190930144104.12742-4-akhil.goyal@nxp.com (mailing list archive)
State Accepted, archived
Delegated to: akhil goyal
Headers
Series crypto/dpaaX_sec: Support Wireless algos |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Akhil Goyal Sept. 30, 2019, 2:40 p.m. UTC 
  HFN can be given as a per packet value also.
As we do not have IV in case of PDCP, and HFN is
used to generate IV. IV field can be used to get the
per packet HFN while enq/deq
If hfn_ovrd field in pdcp_xform is set,
application is expected to set the per packet HFN
in place of IV. Driver will extract the HFN and perform
operations accordingly.

Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
---
 lib/librte_security/rte_security.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/lib/librte_security/rte_security.h b/lib/librte_security/rte_security.h
index 2d064f4d0..aaafdfcd7 100644
--- a/lib/librte_security/rte_security.h
+++ b/lib/librte_security/rte_security.h
@@ -1,5 +1,5 @@ 
 /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright 2017 NXP.
+ * Copyright 2017,2019 NXP
  * Copyright(c) 2017 Intel Corporation.
  */
 
@@ -278,6 +278,15 @@  struct rte_security_pdcp_xform {
 	uint32_t hfn;
 	/** HFN Threshold for key renegotiation */
 	uint32_t hfn_threshold;
+	/** HFN can be given as a per packet value also.
+	 * As we do not have IV in case of PDCP, and HFN is
+	 * used to generate IV. IV field can be used to get the
+	 * per packet HFN while enq/deq.
+	 * If hfn_ovrd field is set, user is expected to set the
+	 * per packet HFN in place of IV. PMDs will extract the HFN
+	 * and perform operations accordingly.
+	 */
+	uint32_t hfn_ovrd;
 };
 
 /**