X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fcrypto%2Focteontx2%2Fotx2_ipsec_anti_replay.h;h=089a3d073a2e34484e8a768d8026e4d276e6efaa;hb=40beec4bf4e37327437dbcf0e9991a48ed369848;hp=d599692a75b2a230f49137966b57dfbcae74e4fe;hpb=cc882d6469e5059b11d1fc2db81cdb8607b050bb;p=dpdk.git

diff --git a/drivers/crypto/octeontx2/otx2_ipsec_anti_replay.h b/drivers/crypto/octeontx2/otx2_ipsec_anti_replay.h
index d599692a75..089a3d073a 100644
--- a/drivers/crypto/octeontx2/otx2_ipsec_anti_replay.h
+++ b/drivers/crypto/octeontx2/otx2_ipsec_anti_replay.h
@@ -166,8 +166,9 @@ winupdate:
 }
 
 static inline int
-cpt_ipsec_ip_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, char *data)
+cpt_ipsec_ip_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, void *l3_ptr)
 {
+	struct otx2_ipsec_fp_res_hdr *hdr = l3_ptr;
 	uint64_t seq_in_sa;
 	uint32_t seqh = 0;
 	uint32_t seql;
@@ -176,14 +177,12 @@ cpt_ipsec_ip_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, char *data)
 	int ret;
 
 	esn = sa->ctl.esn_en;
-	seql = rte_be_to_cpu_32(*((uint32_t *)(data +
-			OTX2_IPSEC_SEQNO_LO_INDEX)));
+	seql = rte_be_to_cpu_32(hdr->seq_no_lo);
 
 	if (!esn)
 		seq = (uint64_t)seql;
 	else {
-		seqh = rte_be_to_cpu_32(*((uint32_t *)(data +
-				OTX2_IPSEC_SEQNO_HI_INDEX)));
+		seqh = rte_be_to_cpu_32(hdr->seq_no_hi);
 		seq = ((uint64_t)seqh << 32) | seql;
 	}
 
@@ -204,4 +203,25 @@ cpt_ipsec_ip_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, char *data)
 
 	return ret;
 }
+
+static inline uint32_t
+anti_replay_get_seqh(uint32_t winsz, uint32_t seql,
+			uint32_t esn_hi, uint32_t esn_low)
+{
+	uint32_t win_low = esn_low - winsz + 1;
+
+	if (esn_low > winsz - 1) {
+		/* Window is in one sequence number subspace */
+		if (seql > win_low)
+			return esn_hi;
+		else
+			return esn_hi + 1;
+	} else {
+		/* Window is split across two sequence number subspaces */
+		if (seql > win_low)
+			return esn_hi - 1;
+		else
+			return esn_hi;
+	}
+}
 #endif /* __OTX2_IPSEC_ANTI_REPLAY_H__ */