ixgbe: Fix DCB netlink layer for 82599 to enable Priority Flow Control

The priority flow control settings from the netlink layer aren't taking
effect in the base driver.  The boolean pfc_mode_enable in the dcb_config
struct isn't being set, so the hardware configuration code is never
reached.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index 0a8731f1f23..bd0a0c27695 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -90,6 +90,8 @@ int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
                         src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc;
         }
 
+        dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable;
+
         return 0;
 }
 
@@ -298,8 +300,10 @@ static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
 
         adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting;
         if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc !=
-            adapter->dcb_cfg.tc_config[priority].dcb_pfc)
+            adapter->dcb_cfg.tc_config[priority].dcb_pfc) {
                 adapter->dcb_set_bitmap |= BIT_PFC;
+                adapter->temp_dcb_cfg.pfc_mode_enable = true;
+        }
 }
 
 static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,