[dpdk-dev] [PATCH v2 3/4] net/mlx5: support a device removal check operation

[Matan Azrad]

Add support to get removal status of mlx5 device.
It is not supported in secondary process.

Signed-off-by: Matan Azrad <matan at mellanox.com>
---
 drivers/net/mlx5/mlx5.c        |  2 ++
 drivers/net/mlx5/mlx5.h        |  1 +
 drivers/net/mlx5/mlx5_ethdev.c | 20 ++++++++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 0548d17..e0b781b 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -303,6 +303,7 @@ struct mlx5_args {
 	.tx_descriptor_status = mlx5_tx_descriptor_status,
 	.rx_queue_intr_enable = mlx5_rx_intr_enable,
 	.rx_queue_intr_disable = mlx5_rx_intr_disable,
+	.is_removed = mlx5_is_removed,
 };
 
 static const struct eth_dev_ops mlx5_dev_sec_ops = {
@@ -350,6 +351,7 @@ struct mlx5_args {
 	.tx_descriptor_status = mlx5_tx_descriptor_status,
 	.rx_queue_intr_enable = mlx5_rx_intr_enable,
 	.rx_queue_intr_disable = mlx5_rx_intr_disable,
+	.is_removed = mlx5_is_removed,
 };
 
 static struct {
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index e6a69b8..2ec7ae7 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -208,6 +208,7 @@ int mlx5_ibv_device_to_pci_addr(const struct ibv_device *,
 int mlx5_set_link_up(struct rte_eth_dev *dev);
 void priv_dev_select_tx_function(struct priv *priv, struct rte_eth_dev *dev);
 void priv_dev_select_rx_function(struct priv *priv, struct rte_eth_dev *dev);
+int mlx5_is_removed(struct rte_eth_dev *dev);
 
 /* mlx5_mac.c */
 
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index a3cef68..5cf0849 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -1474,3 +1474,23 @@ struct priv *
 		dev->rx_pkt_burst = mlx5_rx_burst;
 	}
 }
+
+/**
+ * Check if mlx5 device was removed.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   1 when device is removed, otherwise 0.
+ */
+int
+mlx5_is_removed(struct rte_eth_dev *dev)
+{
+	struct ibv_device_attr device_attr;
+	struct priv *priv = dev->data->dev_private;
+
+	if (ibv_query_device(priv->ctx, &device_attr) == EIO)
+		return 1;
+	return 0;
+}
-- 
1.8.3.1