From: Matan Azrad <matan@mellanox.com>
Date: Sat, 20 Jan 2018 21:12:20 +0000 (+0000)
Subject: net/mlx4: support a device removal check operation
X-Git-Tag: spdx-start~28
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=cdf4ec6eaaf2cdb1b7068fc6b7dacfbf732527da;p=dpdk.git

net/mlx4: support a device removal check operation

Add support to get removal status of mlx4 device.

Signed-off-by: Matan Azrad <matan@mellanox.com>
---

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 61c5bf4d30..703513e79b 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -256,6 +256,7 @@ static const struct eth_dev_ops mlx4_dev_ops = {
 	.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 99dc3357a9..2ab298894c 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 c80eab5a89..5318b56378 100644
--- a/drivers/net/mlx4/mlx4_ethdev.c
+++ b/drivers/net/mlx4/mlx4_ethdev.c
@@ -1052,3 +1052,23 @@ mlx4_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 	}
 	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;
+}