[dpdk-dev] [PATCH V2, 1/2] eventdev: add caps API and PMD callback for crypto adapter

[Abhinandan Gujjar <abhinandan.gujjar@intel.com>]

Application gets required information to configure crypto
adapter for cryptodev and eventdev using caps API.

Signed-off-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
---

Notes:
        V2:
	        1. Removed _MULTI_EVENTQ & _MULTI_EVENTQ capabilities

 lib/librte_eventdev/rte_eventdev.c     | 25 +++++++++++++++++++++++++
 lib/librte_eventdev/rte_eventdev.h     | 33 +++++++++++++++++++++++++++++++++
 lib/librte_eventdev/rte_eventdev_pmd.h | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 90 insertions(+)

diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
index f32c53f..e453667 100644
--- a/lib/librte_eventdev/rte_eventdev.c
+++ b/lib/librte_eventdev/rte_eventdev.c
@@ -29,6 +29,8 @@
 #include <rte_malloc.h>
 #include <rte_errno.h>
 #include <rte_ethdev.h>
+#include <rte_cryptodev.h>
+#include <rte_cryptodev_pmd.h>
 
 #include "rte_eventdev.h"
 #include "rte_eventdev_pmd.h"
@@ -123,6 +125,29 @@
 				: 0;
 }
 
+int
+rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
+				  uint32_t *caps)
+{
+	struct rte_eventdev *dev;
+	struct rte_cryptodev *cdev;
+
+	RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+	if (!rte_cryptodev_pmd_is_valid_dev(cdev_id))
+		return -EINVAL;
+
+	dev = &rte_eventdevs[dev_id];
+	cdev = rte_cryptodev_pmd_get_dev(cdev_id);
+
+	if (caps == NULL)
+		return -EINVAL;
+	*caps = 0;
+
+	return dev->dev_ops->crypto_adapter_caps_get ?
+		(*dev->dev_ops->crypto_adapter_caps_get)
+		(dev, cdev, caps) : 0;
+}
+
 static inline int
 rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues)
 {
diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h
index f1949ff..b442fa2 100644
--- a/lib/librte_eventdev/rte_eventdev.h
+++ b/lib/librte_eventdev/rte_eventdev.h
@@ -1048,6 +1048,39 @@ struct rte_event {
 rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint8_t eth_port_id,
 				uint32_t *caps);
 
+
+/* Crypto adapter capability bitmap flag */
+#define RTE_EVENT_CYRPTO_ADAPTER_CAP_INTERNAL_PORT	0x1
+/**< Flag indicates HW is capable of generating events.
+ * Cryptodev can send packets to the event device using internal event port.
+ */
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Retrieve the event device's crypto adapter capabilities for the
+ * specified cryptodev device
+ *
+ * @param dev_id
+ *   The identifier of the device.
+ *
+ * @param cdev_id
+ *   The identifier of the cryptodev device.
+ *
+ * @param[out] caps
+ *   A pointer to memory filled with event adapter capabilities.
+ *
+ * @return
+ *   - 0: Success, driver provides event adapter capabilities for the
+ *	cryptodev device.
+ *   - <0: Error code returned by the driver function.
+ *
+ */
+int
+rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
+				  uint32_t *caps);
+
 struct rte_eventdev_driver;
 struct rte_eventdev_ops;
 struct rte_eventdev;
diff --git a/lib/librte_eventdev/rte_eventdev_pmd.h b/lib/librte_eventdev/rte_eventdev_pmd.h
index c2fd09c..0c10d99 100644
--- a/lib/librte_eventdev/rte_eventdev_pmd.h
+++ b/lib/librte_eventdev/rte_eventdev_pmd.h
@@ -569,6 +569,35 @@ typedef int (*eventdev_eth_rx_adapter_stats_reset)
 			(const struct rte_eventdev *dev,
 			const struct rte_eth_dev *eth_dev);
 
+
+struct rte_cryptodev;
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Retrieve the event device's crypto adapter capabilities for the
+ * specified cryptodev
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param cdev
+ *   cryptodev pointer
+ *
+ * @param[out] caps
+ *   A pointer to memory filled with event adapter capabilities.
+ *
+ * @return
+ *   - 0: Success, driver provides event adapter capabilities for the
+ *	cryptodev.
+ *   - <0: Error code returned by the driver function.
+ *
+ */
+typedef int (*eventdev_crypto_adapter_caps_get_t)
+					(const struct rte_eventdev *dev,
+					const struct rte_cryptodev *cdev,
+					uint32_t *caps);
+
 /** Event device operations function pointer table */
 struct rte_eventdev_ops {
 	eventdev_info_get_t dev_infos_get;	/**< Get device info. */
@@ -623,6 +652,9 @@ struct rte_eventdev_ops {
 	/**< Get ethernet Rx stats */
 	eventdev_eth_rx_adapter_stats_reset eth_rx_adapter_stats_reset;
 	/**< Reset ethernet Rx stats */
+
+	eventdev_crypto_adapter_caps_get_t crypto_adapter_caps_get;
+	/**< Get crypto adapter capabilities */
 };
 
 /**
-- 
1.9.1