ixgbevf: Fix link speed display

The ixgbevf driver would always report 10Gig speeds even when the link
speed is downshifted to 1Gig.  This patch fixes that problem.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ixgbevf/defines.h

@@ -45,7 +45,9 @@ typedef u32 ixgbe_link_speed;
 #define IXGBE_RXDCTL_ENABLE         0x02000000 /* Enable specific Rx Queue */
 #define IXGBE_TXDCTL_ENABLE         0x02000000 /* Enable specific Tx Queue */
 #define IXGBE_LINKS_UP              0x40000000
-#define IXGBE_LINKS_SPEED       0x20000000
+#define IXGBE_LINKS_SPEED_82599     0x30000000
+#define IXGBE_LINKS_SPEED_10G_82599 0x30000000
+#define IXGBE_LINKS_SPEED_1G_82599  0x20000000
 
 /* Number of Transmit and Receive Descriptors must be a multiple of 8 */
 #define IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE  8

drivers/net/ixgbevf/vf.c

@@ -359,7 +359,8 @@ static s32 ixgbevf_check_mac_link_vf(struct ixgbe_hw *hw,
 	else
 		*link_up = false;
 
-	if (links_reg & IXGBE_LINKS_SPEED)
+	if ((links_reg & IXGBE_LINKS_SPEED_82599) ==
+	    IXGBE_LINKS_SPEED_10G_82599)
 		*speed = IXGBE_LINK_SPEED_10GB_FULL;
 	else
 		*speed = IXGBE_LINK_SPEED_1GB_FULL;