From: Stephen Hemminger <[email protected]>

Ethtool allows querying device information and controlling parameters.
For now just add ability to turn on/off scatter/gather.

Signed-off-by: Stephen Hemminger <[email protected]>
Acked-by: Hank Janssen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/staging/hv/netvsc_drv.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index a6ca010..a6584a8 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -326,6 +326,21 @@ static int netvsc_recv_callback(struct hv_device 
*device_obj,
        return 0;
 }
 
+static void netvsc_get_drvinfo(struct net_device *net,
+                              struct ethtool_drvinfo *info)
+{
+       strcpy(info->driver, "hv_netvsc");
+       strcpy(info->version, HV_DRV_VERSION);
+       strcpy(info->fw_version, "N/A");
+}
+
+static const struct ethtool_ops ethtool_ops = {
+       .get_drvinfo    = netvsc_get_drvinfo,
+       .get_sg         = ethtool_op_get_sg,
+       .set_sg         = ethtool_op_set_sg,
+       .get_link       = ethtool_op_get_link,
+};
+
 static const struct net_device_ops device_ops = {
        .ndo_open =                     netvsc_open,
        .ndo_stop =                     netvsc_close,
@@ -396,6 +411,7 @@ static int netvsc_probe(struct device *device)
        /* TODO: Add GSO and Checksum offload */
        net->features = NETIF_F_SG;
 
+       SET_ETHTOOL_OPS(net, &ethtool_ops);
        SET_NETDEV_DEV(net, device);
 
        ret = register_netdev(net);
-- 
1.7.0.3

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