[dpdk-dev] [PATCH v6 13/14] compressdev: get device id from name

[Pablo de Lara <pablo.de.lara.guarch@intel.com>]

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

Added API to retrieve the device id provided the device name.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Signed-off-by: Shally Verma <shally.verma@caviumnetworks.com>
Signed-off-by: Ashish Gupta <ashish.gupta@caviumnetworks.com>
---
 lib/librte_compressdev/rte_compressdev.c           | 18 ++++++++++++++++++
 lib/librte_compressdev/rte_compressdev.h           | 13 +++++++++++++
 lib/librte_compressdev/rte_compressdev_version.map |  1 +
 3 files changed, 32 insertions(+)

diff --git a/lib/librte_compressdev/rte_compressdev.c b/lib/librte_compressdev/rte_compressdev.c
index 2d7127ce2..6a38917dd 100644
--- a/lib/librte_compressdev/rte_compressdev.c
+++ b/lib/librte_compressdev/rte_compressdev.c
@@ -117,6 +117,24 @@ rte_compressdev_is_valid_dev(uint8_t dev_id)
 }
 
 
+int __rte_experimental
+rte_compressdev_get_dev_id(const char *name)
+{
+	unsigned int i;
+
+	if (name == NULL)
+		return -1;
+
+	for (i = 0; i < rte_compressdev_globals->nb_devs; i++)
+		if ((strcmp(rte_compressdev_globals->devs[i].data->name, name)
+				== 0) &&
+				(rte_compressdev_globals->devs[i].attached ==
+						RTE_COMPRESSDEV_ATTACHED))
+			return i;
+
+	return -1;
+}
+
 uint8_t __rte_experimental
 rte_compressdev_count(void)
 {
diff --git a/lib/librte_compressdev/rte_compressdev.h b/lib/librte_compressdev/rte_compressdev.h
index d52103e15..c86035f14 100644
--- a/lib/librte_compressdev/rte_compressdev.h
+++ b/lib/librte_compressdev/rte_compressdev.h
@@ -111,6 +111,19 @@ struct rte_compressdev_stats {
 	/**< Total error count on operations dequeued */
 };
 
+
+/**
+ * Get the device identifier for the named compress device.
+ *
+ * @param name
+ *   Device name to select the device structure
+ * @return
+ *   - Returns compress device identifier on success.
+ *   - Return -1 on failure to find named compress device.
+ */
+int __rte_experimental
+rte_compressdev_get_dev_id(const char *name);
+
 /**
  * Get the compress device name given a device identifier.
  *
diff --git a/lib/librte_compressdev/rte_compressdev_version.map b/lib/librte_compressdev/rte_compressdev_version.map
index 6c553341a..e5cbc569e 100644
--- a/lib/librte_compressdev/rte_compressdev_version.map
+++ b/lib/librte_compressdev/rte_compressdev_version.map
@@ -10,6 +10,7 @@ EXPERIMENTAL {
 	rte_compressdev_dequeue_burst;
 	rte_compressdev_devices_get;
 	rte_compressdev_enqueue_burst;
+	rte_compressdev_get_dev_id;
 	rte_compressdev_get_feature_name;
 	rte_compressdev_info_get;
 	rte_compressdev_name_get;
-- 
2.14.3