ethdev: add function to check representor port

Add a function to check if a device is representor port, also
modified the related codes for PMDs.

Signed-off-by: Long Wu <[email protected]>
Reviewed-by: Chaoyong He <[email protected]>
Reviewed-by: Peng Zhang <[email protected]>
Reviewed-by: Ferruh Yigit <[email protected]>

2 files changed, 19 insertions, 2 deletions

diff --git a/lib/ethdev/ethdev_driver.h b/lib/ethdev/ethdev_driver.h
index 0e4c1f0743..0b088fdab7 100644
--- a/lib/ethdev/ethdev_driver.h
+++ b/lib/ethdev/ethdev_driver.h
@@ -1814,6 +1814,23 @@ rte_eth_representor_id_get(uint16_t port_id,
 			   uint16_t *repr_id);
 
 /**
+ * @internal
+ * Check if the ethdev is a representor port.
+ *
+ * @param dev
+ *  Pointer to struct rte_eth_dev.
+ *
+ * @return
+ *  false the ethdev is not a representor port.
+ *  true  the ethdev is a representor port.
+ */
+static inline bool
+rte_eth_dev_is_repr(const struct rte_eth_dev *dev)
+{
+	return ((dev->data->dev_flags & RTE_ETH_DEV_REPRESENTOR) != 0);
+}
+
+/**
  * PMD helper function to parse ethdev arguments
  *
  * @param devargs
diff --git a/lib/ethdev/rte_class_eth.c b/lib/ethdev/rte_class_eth.c
index bc003db8af..b52f1dd9f2 100644
--- a/lib/ethdev/rte_class_eth.c
+++ b/lib/ethdev/rte_class_eth.c
@@ -69,7 +69,7 @@ eth_representor_cmp(const char *key __rte_unused,
 	struct rte_eth_devargs eth_da;
 	uint16_t id = 0, nc, np, nf, i, c, p, f;
 
-	if ((data->dev_flags & RTE_ETH_DEV_REPRESENTOR) == 0)
+	if (!rte_eth_dev_is_repr(edev))
 		return -1; /* not a representor port */
 
 	/* Parse devargs representor values. */
@@ -143,7 +143,7 @@ eth_dev_match(const struct rte_eth_dev *edev,
 	}
 	/* if no representor key, default is to not match representor ports */
 	if (ret != 0)
-		if ((edev->data->dev_flags & RTE_ETH_DEV_REPRESENTOR) != 0)
+		if (rte_eth_dev_is_repr(edev))
 			return -1; /* do not match any representor */
 
 	return 0;