[PATCH 10/13] common/mlx5: add check for managed device

[Dariusz Sosnowski]

Add a common function for checking whether given
device is managed by any mlx5 driver.

Signed-off-by: Dariusz Sosnowski <dsosnowski at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
---
 drivers/common/mlx5/mlx5_common.c | 11 +++++++++++
 drivers/common/mlx5/mlx5_common.h | 14 ++++++++++++++
 drivers/net/mlx5/mlx5.c           |  8 +-------
 3 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/drivers/common/mlx5/mlx5_common.c b/drivers/common/mlx5/mlx5_common.c
index 57f484fcb7..46da81ebd8 100644
--- a/drivers/common/mlx5/mlx5_common.c
+++ b/drivers/common/mlx5/mlx5_common.c
@@ -1516,6 +1516,17 @@ mlx5_devx_uar_prepare(struct mlx5_common_device *cdev, struct mlx5_uar *uar)
 	return 0;
 }
 
+RTE_EXPORT_INTERNAL_SYMBOL(mlx5_dev_is_managed)
+bool
+mlx5_dev_is_managed(const struct rte_device *dev)
+{
+	if (dev == NULL || dev->driver == NULL || dev->driver->name == NULL)
+		return false;
+
+	return strcmp(dev->driver->name, MLX5_PCI_DRIVER_NAME) == 0 ||
+	       strcmp(dev->driver->name, MLX5_AUXILIARY_DRIVER_NAME) == 0;
+}
+
 RTE_EXPORT_INTERNAL_SYMBOL(mlx5_dev_matches)
 bool
 mlx5_dev_matches(const struct rte_device *dev,
diff --git a/drivers/common/mlx5/mlx5_common.h b/drivers/common/mlx5/mlx5_common.h
index 0d940b1fdf..548f0c887b 100644
--- a/drivers/common/mlx5/mlx5_common.h
+++ b/drivers/common/mlx5/mlx5_common.h
@@ -601,6 +601,20 @@ __rte_internal
 void
 mlx5_class_driver_register(struct mlx5_class_driver *driver);
 
+/**
+ * Check if given EAL device is managed by any mlx5 driver.
+ *
+ * @param dev
+ *   Pointer to device.
+ *
+ * @return
+ *   - True if device is managed by mlx5 driver.
+ *   - False otherwise.
+ */
+__rte_internal
+bool
+mlx5_dev_is_managed(const struct rte_device *dev);
+
 /**
  * Test device is a PCI bus device.
  *
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 19491b9dc9..7093eefa15 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -3499,13 +3499,7 @@ mlx5_eth_find_next(uint16_t port_id, struct rte_device *odev)
 
 		if (dev->state != RTE_ETH_DEV_UNUSED &&
 		    dev->device &&
-		    (dev->device == odev ||
-		     (dev->device->driver &&
-		     dev->device->driver->name &&
-		     ((strcmp(dev->device->driver->name,
-			      MLX5_PCI_DRIVER_NAME) == 0) ||
-		      (strcmp(dev->device->driver->name,
-			      MLX5_AUXILIARY_DRIVER_NAME) == 0)))))
+		    (dev->device == odev || mlx5_dev_is_managed(dev->device)))
 			break;
 		port_id++;
 	}
-- 
2.43.0