cryptodev: add function to check queue pair status

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>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 9ea4ece..33ced00 100644 (file)
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -1079,6 +1079,35 @@ rte_cryptodev_close(uint8_t dev_id)
        return 0;
 }
 
+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 -EINVAL;
+       }
+
+       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 -EINVAL;
+       }
+       void **qps = dev->data->queue_pairs;
+
+       if (qps[queue_pair_id]) {
+               CDEV_LOG_DEBUG("qp %d on dev %d is initialised",
+                       queue_pair_id, dev_id);
+               return 1;
+       }
+
+       CDEV_LOG_DEBUG("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..7b3ebc2 100644 (file)
--- a/lib/librte_cryptodev/rte_cryptodev.h
+++ b/lib/librte_cryptodev/rte_cryptodev.h
@@ -726,6 +726,23 @@ extern 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);
 
+/**
+ * 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 pairs to set up. The
+ *                             value must be in the range [0, nb_queue_pair
+ *                             - 1] previously supplied to
+ *                             rte_cryptodev_configure().
+ * @return
+ *   - 0: qp was not configured
+ *      - 1: qp was configured
+ *      - -EINVAL: device was not configured
+ */
+__rte_experimental
+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
  *

diff --git a/lib/librte_cryptodev/rte_cryptodev_version.map b/lib/librte_cryptodev/rte_cryptodev_version.map
index 07a2d2f..a7a78dc 100644 (file)
--- a/lib/librte_cryptodev/rte_cryptodev_version.map
+++ b/lib/librte_cryptodev/rte_cryptodev_version.map
@@ -103,4 +103,7 @@ EXPERIMENTAL {
        __rte_cryptodev_trace_asym_session_clear;
        __rte_cryptodev_trace_dequeue_burst;
        __rte_cryptodev_trace_enqueue_burst;
+
+       # added in 20.08
+       rte_cryptodev_get_qp_status;
 };