igb: fix init on 82575 with MNG enabled

This patch resolves an issue seen on 82575 adapters with managability
pass-thru enabled, which could cause the system to panic.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index d8bee212d61f..e5dff61f162e 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -630,6 +630,9 @@ static void igb_configure(struct igb_adapter *adapter)
         igb_configure_tx(adapter);
         igb_setup_rctl(adapter);
         igb_configure_rx(adapter);
+
+        igb_rx_fifo_flush_82575(&adapter->hw);
+
         /* call IGB_DESC_UNUSED which always leaves
          * at least 1 descriptor unused to make sure
          * next_to_use != next_to_clean */