bonding: add 802.3ad support for 25G speeds

BugLink: http://bugs.launchpad.net/bugs/1697892

Cut-n-paste enablement of 802.3ad bonding on 25G NICs, which currently
report 0 as their bandwidth.

CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 19ddde1e)
Signed-off-by: Joseph Salisbury <joseph.salisbury@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Marcelo Henrique Cerri <marcelo.cerri@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>

drivers/net/bonding/bond_3ad.c

@@ -92,6 +92,7 @@ enum ad_link_speed_type {
 	AD_LINK_SPEED_2500MBPS,
 	AD_LINK_SPEED_10000MBPS,
 	AD_LINK_SPEED_20000MBPS,
+	AD_LINK_SPEED_25000MBPS,
 	AD_LINK_SPEED_40000MBPS,
 	AD_LINK_SPEED_56000MBPS,
 	AD_LINK_SPEED_100000MBPS,
@@ -257,6 +258,7 @@ static inline int __check_agg_selection_timer(struct port *port)
  *     %AD_LINK_SPEED_2500MBPS,
  *     %AD_LINK_SPEED_10000MBPS
  *     %AD_LINK_SPEED_20000MBPS
+ *     %AD_LINK_SPEED_25000MBPS
  *     %AD_LINK_SPEED_40000MBPS
  *     %AD_LINK_SPEED_56000MBPS
  *     %AD_LINK_SPEED_100000MBPS
@@ -299,6 +301,10 @@ static u16 __get_link_speed(struct port *port)
 			speed = AD_LINK_SPEED_20000MBPS;
 			break;
 
+		case SPEED_25000:
+			speed = AD_LINK_SPEED_25000MBPS;
+			break;
+
 		case SPEED_40000:
 			speed = AD_LINK_SPEED_40000MBPS;
 			break;
@@ -696,6 +702,9 @@ static u32 __get_agg_bandwidth(struct aggregator *aggregator)
 		case AD_LINK_SPEED_20000MBPS:
 			bandwidth = nports * 20000;
 			break;
+		case AD_LINK_SPEED_25000MBPS:
+			bandwidth = nports * 25000;
+			break;
 		case AD_LINK_SPEED_40000MBPS:
 			bandwidth = nports * 40000;
 			break;