[PATCH v3 02/13] security: add MACsec packet number threshold

[Akhil Goyal <gakhil@marvell.com>]

Added Packet number threshold parameter in MACsec SC
configuration to identify the maximum allowed threshold
for packet number field in the packet.
A field is_xpn is also added to identify if the SAs are
configured for extended packet number or not so that
packet number threshold can be configured accordingly.

Signed-off-by: Akhil Goyal <gakhil@marvell.com>
---
 lib/security/rte_security.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/security/rte_security.h b/lib/security/rte_security.h
index c7a523b6d6..30bac4e25a 100644
--- a/lib/security/rte_security.h
+++ b/lib/security/rte_security.h
@@ -399,6 +399,8 @@ struct rte_security_macsec_sa {
 struct rte_security_macsec_sc {
 	/** Direction of SC */
 	enum rte_security_macsec_direction dir;
+	/** Packet number threshold */
+	uint64_t pn_threshold;
 	union {
 		struct {
 			/** SAs for each association number */
@@ -407,8 +409,10 @@ struct rte_security_macsec_sc {
 			uint8_t sa_in_use[RTE_SECURITY_MACSEC_NUM_AN];
 			/** Channel is active */
 			uint8_t active : 1;
+			/** Extended packet number is enabled for SAs */
+			uint8_t is_xpn : 1;
 			/** Reserved bitfields for future */
-			uint8_t reserved : 7;
+			uint8_t reserved : 6;
 		} sc_rx;
 		struct {
 			uint16_t sa_id; /**< SA ID to be used for encryption */
@@ -416,8 +420,10 @@ struct rte_security_macsec_sc {
 			uint64_t sci; /**< SCI value to be used if send_sci is set */
 			uint8_t active : 1; /**< Channel is active */
 			uint8_t re_key_en : 1; /**< Enable Rekeying */
+			/** Extended packet number is enabled for SAs */
+			uint8_t is_xpn : 1;
 			/** Reserved bitfields for future */
-			uint8_t reserved : 6;
+			uint8_t reserved : 5;
 		} sc_tx;
 	};
 };
-- 
2.25.1