From: Matan Azrad <matan@mellanox.com>
Date: Sat, 20 Jan 2018 21:12:21 +0000 (+0000)
Subject: net/mlx5: support a device removal check operation
X-Git-Tag: spdx-start~27
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=d3e0f392076497b2c01309ed6724e9f5337f4ad5

net/mlx5: support a device removal check operation

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

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

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index fc2d59fee5..abf026173f 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -284,6 +284,7 @@ const struct eth_dev_ops mlx5_dev_ops = {
 	.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 = {
@@ -331,6 +332,7 @@ const struct eth_dev_ops mlx5_dev_ops_isolate = {
 	.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 9a4a59bd48..259448001c 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -238,6 +238,7 @@ void priv_dev_interrupt_handler_uninstall(struct priv *, struct rte_eth_dev *);
 void priv_dev_interrupt_handler_install(struct priv *, struct rte_eth_dev *);
 int mlx5_set_link_down(struct rte_eth_dev *dev);
 int mlx5_set_link_up(struct rte_eth_dev *dev);
+int mlx5_is_removed(struct rte_eth_dev *dev);
 eth_tx_burst_t priv_select_tx_function(struct priv *, struct rte_eth_dev *);
 eth_rx_burst_t priv_select_rx_function(struct priv *, struct rte_eth_dev *);
 
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 9a2ebd80ce..9226f1a5b2 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -1515,3 +1515,23 @@ priv_select_rx_function(struct priv *priv, __rte_unused struct rte_eth_dev *dev)
 	}
 	return rx_pkt_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;
+}