From: Balakrishna Bhamidipati <bbhamidipati@marvell.com>
Date: Wed, 15 Jan 2020 12:56:31 +0000 (+0530)
Subject: cryptodev: support ECPM
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=e98dc331e999ec84fda34613e8bd395932ce915f;p=dpdk.git

cryptodev: support ECPM

Asymmetric crypto library is extended to add ECPM (Elliptic Curve Point
Multiplication). The required xform type and op parameters are
introduced.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Balakrishna Bhamidipati <bbhamidipati@marvell.com>
Signed-off-by: Sunila Sahu <ssahu@marvell.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
---

diff --git a/doc/guides/cryptodevs/features/default.ini b/doc/guides/cryptodevs/features/default.ini
index 440233d7ea..304a6a94f2 100644
--- a/doc/guides/cryptodevs/features/default.ini
+++ b/doc/guides/cryptodevs/features/default.ini
@@ -110,3 +110,4 @@ Modular Exponentiation  =
 Modular Inversion       =
 Diffie-hellman          =
 ECDSA                   =
+ECPM                    =
diff --git a/doc/guides/rel_notes/release_20_02.rst b/doc/guides/rel_notes/release_20_02.rst
index af8384214c..01bde80c27 100644
--- a/doc/guides/rel_notes/release_20_02.rst
+++ b/doc/guides/rel_notes/release_20_02.rst
@@ -66,6 +66,8 @@ New Features
   * Chacha20-Poly1305 AEAD algorithm can now be supported in cryptodev.
   * ECDSA (Elliptic Curve Digital Signature Algorithm) is added to
     asymmetric crypto library specifications.
+  * ECPM (Elliptic Curve Point Multiplication) is added to
+    asymmetric crypto library specifications.
 
 
 Removed Items
diff --git a/lib/librte_cryptodev/rte_crypto_asym.h b/lib/librte_cryptodev/rte_crypto_asym.h
index e17614e972..9c866f553f 100644
--- a/lib/librte_cryptodev/rte_crypto_asym.h
+++ b/lib/librte_cryptodev/rte_crypto_asym.h
@@ -92,6 +92,8 @@ enum rte_crypto_asym_xform_type {
 	/**< Elliptic Curve Digital Signature Algorithm
 	 * Perform Signature Generation and Verification.
 	 */
+	RTE_CRYPTO_ASYM_XFORM_ECPM,
+	/**< Elliptic Curve Point Multiplication */
 	RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
 	/**< End of list */
 };
@@ -598,6 +600,20 @@ struct rte_crypto_ecdsa_op_param {
 	 */
 };
 
+/**
+ * Structure for EC point multiplication operation param
+ */
+struct rte_crypto_ecpm_op_param {
+	struct rte_crypto_ec_point p;
+	/**< x and y coordinates of input point */
+
+	struct rte_crypto_ec_point r;
+	/**< x and y coordinates of resultant point */
+
+	rte_crypto_param scalar;
+	/**< Scalar to multiply the input point */
+};
+
 /**
  * Asymmetric Cryptographic Operation.
  *
@@ -621,6 +637,7 @@ struct rte_crypto_asym_op {
 		struct rte_crypto_dh_op_param dh;
 		struct rte_crypto_dsa_op_param dsa;
 		struct rte_crypto_ecdsa_op_param ecdsa;
+		struct rte_crypto_ecpm_op_param ecpm;
 	};
 };
 
diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 2ab2c3aba2..5c6359b5cc 100644
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -175,6 +175,7 @@ const char *rte_crypto_asym_xform_strings[] = {
 	[RTE_CRYPTO_ASYM_XFORM_DH]	= "dh",
 	[RTE_CRYPTO_ASYM_XFORM_DSA]	= "dsa",
 	[RTE_CRYPTO_ASYM_XFORM_ECDSA]	= "ecdsa",
+	[RTE_CRYPTO_ASYM_XFORM_ECPM]	= "ecpm",
 };
 
 /**