diff --git a/doc/guides/cryptodevs/octeontx2.rst b/doc/guides/cryptodevs/octeontx2.rst
index ef21ad830e..fcfb649cce 100644
--- a/doc/guides/cryptodevs/octeontx2.rst
+++ b/doc/guides/cryptodevs/octeontx2.rst
@@ -179,3 +179,4 @@ Features supported
 * Anti-replay
 * AES-128/192/256-GCM
 * AES-128/192/256-CBC-SHA1-HMAC
+* AES-128/192/256-CBC-SHA256-128-HMAC
diff --git a/doc/guides/rel_notes/release_21_02.rst b/doc/guides/rel_notes/release_21_02.rst
index c11c25806f..a6a689d01c 100644
--- a/doc/guides/rel_notes/release_21_02.rst
+++ b/doc/guides/rel_notes/release_21_02.rst
@@ -63,6 +63,8 @@ New Features
   * Added support for aes-cbc sha1-hmac cipher combination in OCTEON TX2 crypto
     PMD lookaside protocol offload for IPsec.
 
+  * Added support for aes-cbc sha256-128-hmac cipher combination in OCTEON TX2
+    crypto PMD lookaside protocol offload for IPsec.
 
 Removed Items
 -------------
diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_sec.c b/drivers/crypto/octeontx2/otx2_cryptodev_sec.c
index 3cdb5bd1e6..89ed7cbd25 100644
--- a/drivers/crypto/octeontx2/otx2_cryptodev_sec.c
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_sec.c
@@ -74,6 +74,8 @@ ipsec_lp_len_precalc(struct rte_security_ipsec_xform *ipsec,
 
 	if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC)
 		lp->partial_len += OTX2_SEC_SHA1_HMAC_LEN;
+	else if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA256_HMAC)
+		lp->partial_len += OTX2_SEC_SHA2_HMAC_LEN;
 	else
 		return -EINVAL;
 
@@ -268,6 +270,18 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev *crypto_dev,
 						sa->sha1.template.ip4);
 				ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
 				lp->ctx_len = ctx_len >> 3;
+			} else if (ctl->auth_type ==
+					OTX2_IPSEC_PO_SA_AUTH_SHA2_256) {
+				if (ipsec->options.udp_encap) {
+					sa->sha2.template.ip4.udp_src = 4500;
+					sa->sha2.template.ip4.udp_dst = 4500;
+				}
+				ip = &sa->sha2.template.ip4.ipv4_hdr;
+				ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
+						sha2.template) + sizeof(
+						sa->sha2.template.ip4);
+				ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
+				lp->ctx_len = ctx_len >> 3;
 			}
 			ip->version_ihl = RTE_IPV4_VHL_DEF;
 			ip->next_proto_id = IPPROTO_ESP;
@@ -305,6 +319,18 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev *crypto_dev,
 						sa->sha1.template.ip6);
 				ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
 				lp->ctx_len = ctx_len >> 3;
+			} else if (ctl->auth_type ==
+					OTX2_IPSEC_PO_SA_AUTH_SHA2_256) {
+				if (ipsec->options.udp_encap) {
+					sa->sha2.template.ip6.udp_src = 4500;
+					sa->sha2.template.ip6.udp_dst = 4500;
+				}
+				ip6 = &sa->sha2.template.ip6.ipv6_hdr;
+				ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
+						sha2.template) + sizeof(
+						sa->sha2.template.ip6);
+				ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
+				lp->ctx_len = ctx_len >> 3;
 			}
 
 			ip6->vtc_flow = rte_cpu_to_be_32(0x60000000 |
@@ -348,6 +374,8 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev *crypto_dev,
 
 		if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC)
 			memcpy(sa->sha1.hmac_key, auth_key, auth_key_len);
+		else if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA256_HMAC)
+			memcpy(sa->sha2.hmac_key, auth_key, auth_key_len);
 	}
 
 	if (cipher_key_len != 0)
@@ -427,11 +455,16 @@ crypto_sec_ipsec_inb_session_create(struct rte_cryptodev *crypto_dev,
 		auth_key = auth_xform->auth.key.data;
 		auth_key_len = auth_xform->auth.key.length;
 
-		if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC)
+		if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC) {
 			memcpy(sa->aes_gcm.hmac_key, auth_key, auth_key_len);
-
-		lp->ctx_len = offsetof(struct otx2_ipsec_po_in_sa,
-					    aes_gcm.selector) >> 3;
+			lp->ctx_len = offsetof(struct otx2_ipsec_po_in_sa,
+						    aes_gcm.selector) >> 3;
+		} else if (auth_xform->auth.algo ==
+				RTE_CRYPTO_AUTH_SHA256_HMAC) {
+			memcpy(sa->sha2.hmac_key, auth_key, auth_key_len);
+			lp->ctx_len = offsetof(struct otx2_ipsec_po_in_sa,
+						    sha2.selector) >> 3;
+		}
 	}
 
 	if (cipher_key_len != 0)
diff --git a/drivers/crypto/octeontx2/otx2_ipsec_po.h b/drivers/crypto/octeontx2/otx2_ipsec_po.h
index 2141b6c793..8a672a38ea 100644
--- a/drivers/crypto/octeontx2/otx2_ipsec_po.h
+++ b/drivers/crypto/octeontx2/otx2_ipsec_po.h
@@ -152,11 +152,18 @@ struct otx2_ipsec_po_in_sa {
 	/* w8 */
 	uint8_t udp_encap[8];
 
-	/* w9-w23 */
-	struct {
-		uint8_t hmac_key[48];
-		struct otx2_ipsec_po_traffic_selector selector;
-	} aes_gcm;
+	/* w9-w33 */
+	union {
+		struct {
+			uint8_t hmac_key[48];
+			struct otx2_ipsec_po_traffic_selector selector;
+		} aes_gcm;
+		struct {
+			uint8_t hmac_key[64];
+			uint8_t hmac_iv[64];
+			struct otx2_ipsec_po_traffic_selector selector;
+		} sha2;
+	};
 	union {
 		struct otx2_ipsec_replay *replay;
 		uint64_t replay64;
@@ -205,6 +212,11 @@ struct otx2_ipsec_po_out_sa {
 			uint8_t unused[24];
 			struct otx2_ipsec_po_ip_template template;
 		} sha1;
+		struct {
+			uint8_t hmac_key[64];
+			uint8_t hmac_iv[64];
+			struct otx2_ipsec_po_ip_template template;
+		} sha2;
 	};
 };
 
@@ -234,6 +246,9 @@ ipsec_po_xform_auth_verify(struct rte_crypto_sym_xform *xform)
 	if (xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC) {
 		if (keylen >= 20 && keylen <= 64)
 			return 0;
+	} else if (xform->auth.algo == RTE_CRYPTO_AUTH_SHA256_HMAC) {
+		if (keylen >= 32 && keylen <= 64)
+			return 0;
 	}
 
 	return -ENOTSUP;
diff --git a/drivers/crypto/octeontx2/otx2_security.h b/drivers/crypto/octeontx2/otx2_security.h
index 33d3b15155..9f1ba71b46 100644
--- a/drivers/crypto/octeontx2/otx2_security.h
+++ b/drivers/crypto/octeontx2/otx2_security.h
@@ -15,6 +15,7 @@
 #define OTX2_SEC_AES_GCM_MAC_LEN		16
 #define OTX2_SEC_AES_CBC_IV_LEN			16
 #define OTX2_SEC_SHA1_HMAC_LEN			12
+#define OTX2_SEC_SHA2_HMAC_LEN			16
 
 #define OTX2_SEC_AES_GCM_ROUNDUP_BYTE_LEN	4
 #define OTX2_SEC_AES_CBC_ROUNDUP_BYTE_LEN	16
