net: Refactor full duplex flow control resolution

These 4 drivers have identical full duplex flow control resolution
functions.  This patch changes them all to use one common function.

The function in question decides whether a device should enable TX and
RX flow control in a standard way (IEEE 802.3-2005 table 28B-3), so this
should also be useful for other drivers.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 23 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index f353f69caeb8..06bd2f4eee6c 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -1227,28 +1227,6 @@ static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
         return miireg;
 }
 
-static u8 tg3_resolve_flowctrl_1000T(u16 lcladv, u16 rmtadv)
-{
-        u8 cap = 0;
-
-        if (lcladv & ADVERTISE_PAUSE_CAP) {
-                if (lcladv & ADVERTISE_PAUSE_ASYM) {
-                        if (rmtadv & LPA_PAUSE_CAP)
-                                cap = TG3_FLOW_CTRL_TX | TG3_FLOW_CTRL_RX;
-                        else if (rmtadv & LPA_PAUSE_ASYM)
-                                cap = TG3_FLOW_CTRL_RX;
-                } else {
-                        if (rmtadv & LPA_PAUSE_CAP)
-                                cap = TG3_FLOW_CTRL_TX | TG3_FLOW_CTRL_RX;
-                }
-        } else if (lcladv & ADVERTISE_PAUSE_ASYM) {
-                if ((rmtadv & LPA_PAUSE_CAP) && (rmtadv & LPA_PAUSE_ASYM))
-                        cap = TG3_FLOW_CTRL_TX;
-        }
-
-        return cap;
-}
-
 static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
 {
         u8 cap = 0;
@@ -1288,7 +1266,7 @@ static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
                         flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
                 else
-                        flowctrl = tg3_resolve_flowctrl_1000T(lcladv, rmtadv);
+                        flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
         } else
                 flowctrl = tp->link_config.flowctrl;