ixgbe: Fix ethtool diag test for VT mode operation
Skip MAC loopback test when the adapter is set to a VT mode such as SR-IOV
or VMDq
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 0bd49d3..a0107b5 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -1867,11 +1867,22 @@
if (ixgbe_intr_test(adapter, &data[2]))
eth_test->flags |= ETH_TEST_FL_FAILED;
+ /* If SRIOV or VMDq is enabled then skip MAC
+ * loopback diagnostic. */
+ if (adapter->flags & (IXGBE_FLAG_SRIOV_ENABLED |
+ IXGBE_FLAG_VMDQ_ENABLED)) {
+ DPRINTK(HW, INFO, "Skip MAC loopback diagnostic in VT "
+ "mode\n");
+ data[3] = 0;
+ goto skip_loopback;
+ }
+
ixgbe_reset(adapter);
DPRINTK(HW, INFO, "loopback testing starting\n");
if (ixgbe_loopback_test(adapter, &data[3]))
eth_test->flags |= ETH_TEST_FL_FAILED;
+skip_loopback:
ixgbe_reset(adapter);
clear_bit(__IXGBE_TESTING, &adapter->state);
