[dpdk-dev] [PATCH v4 13/13] compressdev: get device id from name

[Pablo de Lara]

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

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

Signed-off-by: Fiona Trahe <fiona.tr...@intel.com>
Signed-off-by: Pablo de Lara <pablo.de.lara.gua...@intel.com>
Signed-off-by: Shally Verma <shally.ve...@caviumnetworks.com>
Signed-off-by: Ashish Gupta <ashish.gu...@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 4435801fd..4ad13a0ec 100644
--- a/lib/librte_compressdev/rte_compressdev.c
+++ b/lib/librte_compressdev/rte_compressdev.c
@@ -173,6 +173,24 @@ 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 e9cb212ec..1d1a072ef 100644
--- a/lib/librte_compressdev/rte_compressdev.h
+++ b/lib/librte_compressdev/rte_compressdev.h
@@ -170,6 +170,19 @@ 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 dec73fcff..46bdda88b 100644
--- a/lib/librte_compressdev/rte_compressdev_version.map
+++ b/lib/librte_compressdev/rte_compressdev_version.map
@@ -13,6 +13,7 @@ EXPERIMENTAL {
        rte_compressdev_devices_get;
        rte_compressdev_driver_id_get;
        rte_compressdev_driver_name_get;
+       rte_compressdev_get_dev_id;
        rte_compressdev_get_feature_name;
        rte_compressdev_info_get;
        rte_compressdev_is_valid_dev;
-- 
2.14.3