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>
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index f353f69..06bd2f4 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -1227,28 +1227,6 @@
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 @@
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;