[RFC PATCH] cryptodev: add basic asymmetric crypto capability structs

[Arek Kusztal]

This commit adds basic structs to handle asymmetric crypto capability.

Signed-off-by: Arek Kusztal <arkadiuszx.kusztal at intel.com>
---
 lib/cryptodev/rte_crypto_asym.h | 47 +++++++++++++++++++++++++++++++++
 lib/cryptodev/rte_cryptodev.h   |  8 ++++++
 2 files changed, 55 insertions(+)

diff --git a/lib/cryptodev/rte_crypto_asym.h b/lib/cryptodev/rte_crypto_asym.h
index cd24d4b07b..2d58fffee5 100644
--- a/lib/cryptodev/rte_crypto_asym.h
+++ b/lib/cryptodev/rte_crypto_asym.h
@@ -386,6 +386,26 @@ struct rte_crypto_rsa_op_param {
 	 */
 };
 
+struct rte_crypto_rsa_capability {
+	uint64_t padding_type;
+	/* Supported padding */
+	union {
+		uint64_t hash;
+		/* Supported hash functions, at least one
+		 * shall be supported */
+		uint64_t mgf;
+		/* Supported masdk generation functions,
+		 * at least one shall be supported */
+	} padding;
+	uint32_t max_key_len;
+	/* Maximum supported key length */
+	uint8_t sign_message;
+	/* If zero input should contain message digest,
+	 * otherwise it should be plain message */
+	uint8_t pkcs_plain_padding;
+	/* PKCS1_5 padding without algorithm identifier */
+};
+
 /**
  * Diffie-Hellman Operations params.
  * @note:
@@ -416,6 +436,19 @@ struct rte_crypto_dh_op_param {
 	 */
 };
 
+struct rte_crypto_dh_capability {
+	union {
+		uint32_t group_size;
+		/**< Maximum size of underliying mod group */
+		uint64_t curves;
+		/**< Supported elliptic curve ids */
+		/* uint64_t fixed_groups; ? */
+		/**< Supported fixed groups */
+		/* uint8_t custom_curves; ? */
+		/**< Supported custom curves */
+	};
+};
+
 /**
  * DSA Operations params
  *
@@ -484,6 +517,13 @@ struct rte_crypto_ecdsa_op_param {
 	 */
 };
 
+struct rte_crypto_ecdsa_capability {
+	uint64_t curves;
+	/**< Supported elliptic curve ids */
+	/* uint8_t custom_curves; ? */
+	/**< Supported custom curves */
+};
+
 /**
  * Structure for EC point multiplication operation param
  */
@@ -498,6 +538,13 @@ struct rte_crypto_ecpm_op_param {
 	/**< Scalar to multiply the input point */
 };
 
+struct rte_crypto_ecpm_capability {
+	uint64_t curves;
+	/**< Supported elliptic curve ids */
+	/* uint8_t custom_curves; ? */
+	/**< Supported custom curves */
+};
+
 /**
  * Asymmetric crypto transform data
  *
diff --git a/lib/cryptodev/rte_cryptodev.h b/lib/cryptodev/rte_cryptodev.h
index 45d33f4a50..79026dbb80 100644
--- a/lib/cryptodev/rte_cryptodev.h
+++ b/lib/cryptodev/rte_cryptodev.h
@@ -176,6 +176,14 @@ struct rte_cryptodev_asymmetric_xform_capability {
 		/**< Range of modulus length supported by modulus based xform.
 		 * Value 0 mean implementation default
 		 */
+		struct rte_crypto_ecdsa_capability ecdsa;
+		/**< ECDSA capability */
+		struct rte_crypto_ecpm_capability ecpm;
+		/**< ECPM capability */
+		struct rte_crypto_rsa_capability rsa;
+		/**< RSA capability */
+		struct rte_crypto_dh_capability dh;
+		/**< DH capability */
 	};
 };
 
-- 
2.30.2