netvsc: report rss field values
Report current components used in RSS hash.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index b158cab..6ab8b52 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -1009,6 +1009,30 @@ static void netvsc_get_strings(struct net_device *dev, u32 stringset, u8 *data)
}
static int
+netvsc_get_rss_hash_opts(struct netvsc_device *nvdev,
+ struct ethtool_rxnfc *info)
+{
+ info->data = RXH_IP_SRC | RXH_IP_DST;
+
+ switch (info->flow_type) {
+ case TCP_V4_FLOW:
+ case TCP_V6_FLOW:
+ info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* fallthrough */
+ case UDP_V4_FLOW:
+ case UDP_V6_FLOW:
+ case IPV4_FLOW:
+ case IPV6_FLOW:
+ break;
+ default:
+ info->data = 0;
+ break;
+ }
+
+ return 0;
+}
+
+static int
netvsc_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
u32 *rules)
{
@@ -1019,6 +1043,9 @@ netvsc_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
case ETHTOOL_GRXRINGS:
info->data = nvdev->num_chn;
return 0;
+
+ case ETHTOOL_GRXFH:
+ return netvsc_get_rss_hash_opts(nvdev, info);
}
return -EOPNOTSUPP;
}