From: Feras Daoud <ferasda@mellanox.com>
Date: Wed, 23 Aug 2017 08:37:21 +0300
Subject: IB/ipoib: Enable ioctl for to IPoIB rdma netdevs
Patch-mainline: v4.14-rc1
Git-commit: 31a8236276c1328d6770c30cf0b3dc5c07ede65b
References: bsc#1046307 FATE#322941

Adds support for ioctl callback in the RDMA netdevs to allow
supporting functions not handled by the generic interface code.

Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Eitan Rabin <rabin@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/ulp/ipoib/ipoib_main.c |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -99,6 +99,8 @@ static struct net_device *ipoib_get_net_
 		const union ib_gid *gid, const struct sockaddr *addr,
 		void *client_data);
 static int ipoib_set_mac(struct net_device *dev, void *addr);
+static int ipoib_ioctl(struct net_device *dev, struct ifreq *ifr,
+		       int cmd);
 
 static struct ib_client ipoib_client = {
 	.name   = "ipoib",
@@ -1680,6 +1682,17 @@ out:
 	return -ENOMEM;
 }
 
+static int ipoib_ioctl(struct net_device *dev, struct ifreq *ifr,
+		       int cmd)
+{
+	struct ipoib_dev_priv *priv = ipoib_priv(dev);
+
+	if (!priv->rn_ops->ndo_do_ioctl)
+		return -EOPNOTSUPP;
+
+	return priv->rn_ops->ndo_do_ioctl(dev, ifr, cmd);
+}
+
 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port)
 {
 	struct ipoib_dev_priv *priv = ipoib_priv(dev);
@@ -1834,6 +1847,7 @@ static const struct net_device_ops ipoib
 	.ndo_set_vf_guid	 = ipoib_set_vf_guid,
 	.ndo_set_mac_address	 = ipoib_set_mac,
 	.ndo_get_stats64	 = ipoib_get_stats,
+	.ndo_do_ioctl		 = ipoib_ioctl,
 };
 
 static const struct net_device_ops ipoib_netdev_ops_vf = {
@@ -1847,6 +1861,7 @@ static const struct net_device_ops ipoib
 	.ndo_set_rx_mode	 = ipoib_set_mcast_list,
 	.ndo_get_iflink		 = ipoib_get_iflink,
 	.ndo_get_stats64	 = ipoib_get_stats,
+	.ndo_do_ioctl		 = ipoib_ioctl,
 };
 
 void ipoib_setup_common(struct net_device *dev)