[dpdk-dev] [PATCH v5 3/3] crypto/dpaa2_sec: enable anti replay window config

[Hemant Agrawal]

This patch usages the anti replay window size to config
the anti replay checking  in decap path for lookaside
IPSEC offload

Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c | 24 +++++++++++++++++++
 drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h   |  6 +++--
 drivers/crypto/dpaa_sec/dpaa_sec.c          | 26 +++++++++++++++++++++
 drivers/crypto/dpaa_sec/dpaa_sec.h          |  6 +++--
 4 files changed, 58 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index 52e522e4a..6d59e73e9 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
@@ -2836,6 +2836,30 @@ dpaa2_sec_set_ipsec_session(struct rte_cryptodev *dev,
 				sizeof(struct rte_ipv6_hdr) << 16;
 		if (ipsec_xform->options.esn)
 			decap_pdb.options |= PDBOPTS_ESP_ESN;
+
+		if (ipsec_xform->replay_win_sz) {
+			uint32_t win_sz;
+			win_sz = rte_align32pow2(ipsec_xform->replay_win_sz);
+
+			switch (win_sz) {
+			case 1:
+			case 2:
+			case 4:
+			case 8:
+			case 16:
+			case 32:
+				if (ipsec_xform->options.esn)
+					decap_pdb.options |= PDBOPTS_ESP_ARS64;
+				else
+					decap_pdb.options |= PDBOPTS_ESP_ARS32;
+				break;
+			case 64:
+				decap_pdb.options |= PDBOPTS_ESP_ARS64;
+				break;
+			default:
+				decap_pdb.options |= PDBOPTS_ESP_ARS128;
+			}
+		}
 		session->dir = DIR_DEC;
 		bufsize = cnstr_shdsc_ipsec_new_decap(priv->flc_desc[0].desc,
 				1, 0, SHR_SERIAL,
diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h b/drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h
index 662559422..b97dacbcb 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_priv.h
@@ -675,7 +675,8 @@ static const struct rte_security_capability dpaa2_sec_security_cap[] = {
 			.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 			.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL,
 			.direction = RTE_SECURITY_IPSEC_SA_DIR_EGRESS,
-			.options = { 0 }
+			.options = { 0 },
+			.replay_win_sz_max = 128
 		},
 		.crypto_capabilities = dpaa2_sec_capabilities
 	},
@@ -686,7 +687,8 @@ static const struct rte_security_capability dpaa2_sec_security_cap[] = {
 			.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 			.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL,
 			.direction = RTE_SECURITY_IPSEC_SA_DIR_INGRESS,
-			.options = { 0 }
+			.options = { 0 },
+			.replay_win_sz_max = 128
 		},
 		.crypto_capabilities = dpaa2_sec_capabilities
 	},
diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.c b/drivers/crypto/dpaa_sec/dpaa_sec.c
index 6c186338f..7cfa5f6dc 100644
--- a/drivers/crypto/dpaa_sec/dpaa_sec.c
+++ b/drivers/crypto/dpaa_sec/dpaa_sec.c
@@ -2693,6 +2693,32 @@ dpaa_sec_set_ipsec_session(__rte_unused struct rte_cryptodev *dev,
 					sizeof(struct rte_ipv6_hdr) << 16;
 		if (ipsec_xform->options.esn)
 			session->decap_pdb.options |= PDBOPTS_ESP_ESN;
+		if (ipsec_xform->replay_win_sz) {
+			uint32_t win_sz;
+			win_sz = rte_align32pow2(ipsec_xform->replay_win_sz);
+
+			switch (win_sz) {
+			case 1:
+			case 2:
+			case 4:
+			case 8:
+			case 16:
+			case 32:
+				if (ipsec_xform->options.esn)
+					session->decap_pdb.options |=
+							PDBOPTS_ESP_ARS64;
+				else
+					session->decap_pdb.options |=
+							PDBOPTS_ESP_ARS32;
+				break;
+			case 64:
+				session->decap_pdb.options |= PDBOPTS_ESP_ARS64;
+				break;
+			default:
+				session->decap_pdb.options |=
+							PDBOPTS_ESP_ARS128;
+			}
+		}
 		session->dir = DIR_DEC;
 	} else
 		goto out;
diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.h b/drivers/crypto/dpaa_sec/dpaa_sec.h
index c10ec1007..684950d6d 100644
--- a/drivers/crypto/dpaa_sec/dpaa_sec.h
+++ b/drivers/crypto/dpaa_sec/dpaa_sec.h
@@ -692,7 +692,8 @@ static const struct rte_security_capability dpaa_sec_security_cap[] = {
 			.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 			.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL,
 			.direction = RTE_SECURITY_IPSEC_SA_DIR_EGRESS,
-			.options = { 0 }
+			.options = { 0 },
+			.replay_win_sz_max = 128
 		},
 		.crypto_capabilities = dpaa_sec_capabilities
 	},
@@ -703,7 +704,8 @@ static const struct rte_security_capability dpaa_sec_security_cap[] = {
 			.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 			.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL,
 			.direction = RTE_SECURITY_IPSEC_SA_DIR_INGRESS,
-			.options = { 0 }
+			.options = { 0 },
+			.replay_win_sz_max = 128
 		},
 		.crypto_capabilities = dpaa_sec_capabilities
 	},
-- 
2.17.1