[PATCH v3 1/3] cryptodev: add asymmetric operational capability

[Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>]

Asymmetric crypto algorithms such as SM2, EdDSA would need per op
capability and based on it, the input param to a crypto operation
is chosen wisely.

Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
---
v3:
 - Removed unused rte_crypto_sm2_op_capa enum value RTE_CRYPTO_SM2_PKE_KDF.
   HW that needs it can add this enum.
 - Test and driver changes split from it and follows within same series.
 
---
 lib/cryptodev/rte_crypto_asym.h | 10 ++++++++++
 lib/cryptodev/rte_cryptodev.c   | 16 ++++++++++++++++
 lib/cryptodev/rte_cryptodev.h   | 23 +++++++++++++++++++++++
 lib/cryptodev/version.map       |  3 +++
 4 files changed, 52 insertions(+)

diff --git a/lib/cryptodev/rte_crypto_asym.h b/lib/cryptodev/rte_crypto_asym.h
index 39d3da3952..1adbe9c389 100644
--- a/lib/cryptodev/rte_crypto_asym.h
+++ b/lib/cryptodev/rte_crypto_asym.h
@@ -633,6 +633,16 @@ struct rte_crypto_asym_xform {
 	};
 };
 
+/**
+ * SM2 operation capabilities
+ */
+enum rte_crypto_sm2_op_capa {
+	RTE_CRYPTO_SM2_RNG,
+	/**< Random number generator supported in SM2 ops. */
+	RTE_CRYPTO_SM2_PH,
+	/**< Prehash message before crypto op. */
+};
+
 /**
  * SM2 operation params.
  */
diff --git a/lib/cryptodev/rte_cryptodev.c b/lib/cryptodev/rte_cryptodev.c
index 682c9f49d0..d3d8e25b39 100644
--- a/lib/cryptodev/rte_cryptodev.c
+++ b/lib/cryptodev/rte_cryptodev.c
@@ -628,6 +628,22 @@ rte_cryptodev_asym_xform_capability_check_hash(
 	return ret;
 }
 
+int
+rte_cryptodev_asym_xform_capability_check_opcap(
+	const struct rte_cryptodev_asymmetric_xform_capability *capability,
+	enum rte_crypto_asym_op_type op_type, uint8_t cap)
+{
+	int ret = 0;
+
+	if (!(capability->op_types & (1 << op_type)))
+		return ret;
+
+	if (capability->op_capa[op_type] & (1 << cap))
+		ret = 1;
+
+	return ret;
+}
+
 /* spinlock for crypto device enq callbacks */
 static rte_spinlock_t rte_cryptodev_callback_lock = RTE_SPINLOCK_INITIALIZER;
 
diff --git a/lib/cryptodev/rte_cryptodev.h b/lib/cryptodev/rte_cryptodev.h
index bec947f6d5..aa6ef3a94d 100644
--- a/lib/cryptodev/rte_cryptodev.h
+++ b/lib/cryptodev/rte_cryptodev.h
@@ -185,6 +185,9 @@ struct rte_cryptodev_asymmetric_xform_capability {
 		 * Value 0 means unavailable, and application should pass the required
 		 * random value. Otherwise, PMD would internally compute the random number.
 		 */
+
+		uint32_t op_capa[RTE_CRYPTO_ASYM_OP_LIST_END];
+		/**< Operation specific capabilities. */
 	};
 
 	uint64_t hash_algos;
@@ -359,6 +362,26 @@ rte_cryptodev_asym_xform_capability_check_hash(
 	const struct rte_cryptodev_asymmetric_xform_capability *capability,
 	enum rte_crypto_auth_algorithm hash);
 
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Check if op capability is supported
+ *
+ * @param	capability	Description of the asymmetric crypto capability.
+ * @param	op_type		op type
+ * @param	cap		op capability
+ *
+ * @return
+ *   - Return 1 if the op capability is supported
+ *   - Return 0 if unsupported
+ */
+__rte_experimental
+int
+rte_cryptodev_asym_xform_capability_check_opcap(
+	const struct rte_cryptodev_asymmetric_xform_capability *capability,
+	enum rte_crypto_asym_op_type op_type, uint8_t cap);
+
 /**
  * Provide the cipher algorithm enum, given an algorithm string
  *
diff --git a/lib/cryptodev/version.map b/lib/cryptodev/version.map
index 594c501855..5d40b7fed0 100644
--- a/lib/cryptodev/version.map
+++ b/lib/cryptodev/version.map
@@ -87,6 +87,9 @@ EXPERIMENTAL {
 
 	# added in 24.03
 	__rte_cryptodev_trace_qp_depth_used;
+
+	# added in 24.11
+	rte_cryptodev_asym_xform_capability_check_opcap;
 };
 
 INTERNAL {
-- 
2.21.0