igb: Supported and Advertised Pause Frame

This patch add ethtool supports for Supported and Advertised Pause Frame,
based on Adapter Flow Control settings.

Signed-off-by: Akeem G. Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index c4def55..a294441 100644 (file)
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -148,9 +148,9 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
                                   SUPPORTED_100baseT_Full |
                                   SUPPORTED_1000baseT_Full|
                                   SUPPORTED_Autoneg |
-                                  SUPPORTED_TP);
-               ecmd->advertising = (ADVERTISED_TP |
-                                    ADVERTISED_Pause);
+                                  SUPPORTED_TP |
+                                  SUPPORTED_Pause);
+               ecmd->advertising = ADVERTISED_TP;
 
                if (hw->mac.autoneg == 1) {
                        ecmd->advertising |= ADVERTISED_Autoneg;
@@ -158,6 +158,21 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
                        ecmd->advertising |= hw->phy.autoneg_advertised;
                }
 
+               if (hw->mac.autoneg != 1)
+                       ecmd->advertising &= ~(ADVERTISED_Pause |
+                                              ADVERTISED_Asym_Pause);
+
+               if (hw->fc.requested_mode == e1000_fc_full)
+                       ecmd->advertising |= ADVERTISED_Pause;
+               else if (hw->fc.requested_mode == e1000_fc_rx_pause)
+                       ecmd->advertising |= (ADVERTISED_Pause |
+                                             ADVERTISED_Asym_Pause);
+               else if (hw->fc.requested_mode == e1000_fc_tx_pause)
+                       ecmd->advertising |=  ADVERTISED_Asym_Pause;
+               else
+                       ecmd->advertising &= ~(ADVERTISED_Pause |
+                                              ADVERTISED_Asym_Pause);
+
                ecmd->port = PORT_TP;
                ecmd->phy_address = hw->phy.addr;
        } else {