[dpdk-dev] [PATCH 1/2] cryptodev: add function to check if qp was setup

[Arek Kusztal <arkadiuszx.kusztal@intel.com>]

From: Fiona Trahe <fiona.trahe@intel.com>

This patch adds function that can check if queue pair
was already setup. This may be useful when dealing with
multi process approach in cryptodev.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
---
 lib/librte_cryptodev/rte_cryptodev.c | 28 ++++++++++++++++++++++++++++
 lib/librte_cryptodev/rte_cryptodev.h | 14 ++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index e37b83a..705387b 100644
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -1080,6 +1080,34 @@ rte_cryptodev_close(uint8_t dev_id)
 }
 
 int
+rte_cryptodev_get_qp_status(uint8_t dev_id, uint16_t queue_pair_id)
+{
+	struct rte_cryptodev *dev;
+
+	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
+		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
+		return -(ENODEV);
+	}
+
+	dev = &rte_crypto_devices[dev_id];
+	if (queue_pair_id >= dev->data->nb_queue_pairs) {
+		CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
+		return -(ENODEV);
+	}
+	void **qps = dev->data->queue_pairs;
+
+	if (qps[queue_pair_id])	{
+		CDEV_LOG_INFO("qp %d on dev %d is initialised",
+			queue_pair_id, dev_id);
+		return 1;
+	}
+
+	CDEV_LOG_INFO("qp %d on dev %d is not initialised",
+		queue_pair_id, dev_id);
+	return 0;
+}
+
+int
 rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 		const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
 
diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h
index 4aaee73..d01a658 100644
--- a/lib/librte_cryptodev/rte_cryptodev.h
+++ b/lib/librte_cryptodev/rte_cryptodev.h
@@ -727,6 +727,20 @@ rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 		const struct rte_cryptodev_qp_conf *qp_conf, int socket_id);
 
 /**
+ * Get the status of queue pairs setup on a specific crypto device
+ *
+ * @param	dev_id			Crypto device identifier.
+ * @param	queue_pair_id	The index of the queue pair to check.
+ *
+ * @return
+ *   - 0: qp was not configured
+ *   - 1: qp was configured
+ *   - -ENODEV: device was not configured
+ */
+int
+rte_cryptodev_get_qp_status(uint8_t dev_id, uint16_t queue_pair_id);
+
+/**
  * Get the number of queue pairs on a specific crypto device
  *
  * @param	dev_id		Crypto device identifier.
-- 
2.1.0