tg3: Pull the phy advertised speed and flow control settings on driver load
Normally on driver load, we set the default settings for speed and flow
control. However, if the default setting is not compatible with the current link
state, we would autonegotiate and cause a link flap. To avoid this, we
pull the current advertised settings into the config.
A second scenario is if a user changes the speed/duplex/fc settings when
the interface is down. In this case we must not pull the settings from
the phy and overwrite user settings. We avoid that by checking the
USER_CONFIGURED flag.
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 150bfc7..9b2d3ac 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -3290,6 +3290,7 @@
#define TG3_PHYFLG_IS_LOW_POWER 0x00000001
#define TG3_PHYFLG_IS_CONNECTED 0x00000002
#define TG3_PHYFLG_USE_MI_INTERRUPT 0x00000004
+#define TG3_PHYFLG_USER_CONFIGURED 0x00000008
#define TG3_PHYFLG_PHY_SERDES 0x00000010
#define TG3_PHYFLG_MII_SERDES 0x00000020
#define TG3_PHYFLG_ANY_SERDES (TG3_PHYFLG_PHY_SERDES | \