IPoIB: Add basic ethtool support

Just add the infrastructure so we can add functionality later.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

4 files changed, 59 insertions, 1 deletions

diff --git a/drivers/infiniband/ulp/ipoib/Makefile b/drivers/infiniband/ulp/ipoib/Makefile
index 98ee38e8c2c4..3090100f0de7 100644
--- a/drivers/infiniband/ulp/ipoib/Makefile
+++ b/drivers/infiniband/ulp/ipoib/Makefile
@@ -4,7 +4,8 @@ ib_ipoib-y					:= ipoib_main.o \
                                                    ipoib_ib.o \
                                                    ipoib_multicast.o \
                                                    ipoib_verbs.o \
-                                                   ipoib_vlan.o
+                                                   ipoib_vlan.o \
+                                                   ipoib_ethtool.o
 ib_ipoib-$(CONFIG_INFINIBAND_IPOIB_CM)          += ipoib_cm.o
 ib_ipoib-$(CONFIG_INFINIBAND_IPOIB_DEBUG)       += ipoib_fs.o
 
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 19a41ff90d15..3524d65f2e57 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -460,6 +460,8 @@ void ipoib_pkey_poll(struct work_struct *work);
 int ipoib_pkey_dev_delay_open(struct net_device *dev);
 void ipoib_drain_cq(struct net_device *dev);
 
+void ipoib_set_ethtool_ops(struct net_device *dev);
+
 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 
 #define IPOIB_FLAGS_RC          0x80
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
new file mode 100644
index 000000000000..d46e6b7303b8
--- /dev/null
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+
+#include "ipoib.h"
+
+static void ipoib_get_drvinfo(struct net_device *netdev,
+                              struct ethtool_drvinfo *drvinfo)
+{
+        strncpy(drvinfo->driver, "ipoib", sizeof(drvinfo->driver) - 1);
+}
+
+static const struct ethtool_ops ipoib_ethtool_ops = {
+        .get_drvinfo            = ipoib_get_drvinfo,
+        .get_tso                = ethtool_op_get_tso,
+};
+
+void ipoib_set_ethtool_ops(struct net_device *dev)
+{
+        SET_ETHTOOL_OPS(dev, &ipoib_ethtool_ops);
+}
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 35a3643fb566..bd07f02cf02b 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -951,6 +951,8 @@ static void ipoib_setup(struct net_device *dev)
         dev->set_multicast_list  = ipoib_set_mcast_list;
         dev->neigh_setup         = ipoib_neigh_setup_dev;
 
+        ipoib_set_ethtool_ops(dev);
+
         netif_napi_add(dev, &priv->napi, ipoib_poll, 100);
 
         dev->watchdog_timeo      = HZ;