ixgbe: ethtool support to change advertised link modes of 82599 adapters

Add ethtool support to change advertised link modes/autoneg settings of
82599 multispeed fiber adapters.

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c
index 4d83e5916593..3f36d834ccfd 100644
--- a/drivers/net/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ixgbe/ixgbe_82599.c
@@ -464,6 +464,15 @@ s32 ixgbe_setup_mac_link_speed_multispeed_fiber(struct ixgbe_hw *hw,
         hw->mac.ops.get_link_capabilities(hw, &phy_link_speed, &negotiation);
         speed &= phy_link_speed;
 
+         /* Set autoneg_advertised value based on input link speed */
+        hw->phy.autoneg_advertised = 0;
+
+        if (speed & IXGBE_LINK_SPEED_10GB_FULL)
+                hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
+
+        if (speed & IXGBE_LINK_SPEED_1GB_FULL)
+                hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
+
         /*
          * When the driver changes the link speeds that it can support,
          * it sets autotry_restart to true to indicate that we need to