[dpdk-dev] [PATCH v5 2/6] net/mlx4: support a device removal check operation

[Matan Azrad]

Add support to get removal status of mlx4 device.

Signed-off-by: Matan Azrad <ma...@mellanox.com>
---
 drivers/net/mlx4/mlx4.c        |  1 +
 drivers/net/mlx4/mlx4.h        |  1 +
 drivers/net/mlx4/mlx4_ethdev.c | 20 ++++++++++++++++++++
 3 files changed, 22 insertions(+)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 61c5bf4..703513e 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -256,6 +256,7 @@ struct mlx4_conf {
        .filter_ctrl = mlx4_filter_ctrl,
        .rx_queue_intr_enable = mlx4_rx_intr_enable,
        .rx_queue_intr_disable = mlx4_rx_intr_disable,
+       .is_removed = mlx4_is_removed,
 };
 
 /**
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index 99dc335..2ab2988 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -171,6 +171,7 @@ int mlx4_flow_ctrl_get(struct rte_eth_dev *dev,
 int mlx4_flow_ctrl_set(struct rte_eth_dev *dev,
                       struct rte_eth_fc_conf *fc_conf);
 const uint32_t *mlx4_dev_supported_ptypes_get(struct rte_eth_dev *dev);
+int mlx4_is_removed(struct rte_eth_dev *dev);
 
 /* mlx4_intr.c */
 
diff --git a/drivers/net/mlx4/mlx4_ethdev.c b/drivers/net/mlx4/mlx4_ethdev.c
index c80eab5..5318b56 100644
--- a/drivers/net/mlx4/mlx4_ethdev.c
+++ b/drivers/net/mlx4/mlx4_ethdev.c
@@ -1052,3 +1052,23 @@ enum rxmode_toggle {
        }
        return NULL;
 }
+
+/**
+ * Check if mlx4 device was removed.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   1 when device is removed, otherwise 0.
+ */
+int
+mlx4_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