igb: Enable PF side of SR-IOV support for i350 devices

This patch adds full support for SR-IOV by enabling the PF side.
VF side has already been committed.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index c1552b6..65c1833 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -238,9 +238,15 @@
 		size = 14;
 	nvm->word_size = 1 << size;
 
-	/* if 82576 then initialize mailbox parameters */
-	if (mac->type == e1000_82576)
+	/* if part supports SR-IOV then initialize mailbox parameters */
+	switch (mac->type) {
+	case e1000_82576:
+	case e1000_i350:
 		igb_init_mbx_params_pf(hw);
+		break;
+	default:
+		break;
+	}
 
 	/* setup PHY parameters */
 	if (phy->media_type != e1000_media_type_copper) {