[TG3]: Allow partial speed advertisement.

Honor the advertisement bitmask from ethtool.  We used to always
advertise the full capability when autoneg was set to on.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 24 insertions, 15 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 16bc05fe531f..576e9ea0a566 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -1558,12 +1558,6 @@ static void tg3_phy_copper_begin(struct tg3 *tp)
 
                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
         } else if (tp->link_config.speed == SPEED_INVALID) {
-                tp->link_config.advertising =
-                        (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
-                         ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
-                         ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full |
-                         ADVERTISED_Autoneg | ADVERTISED_MII);
-
                 if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
                         tp->link_config.advertising &=
                                 ~(ADVERTISED_1000baseT_Half |
@@ -1707,25 +1701,36 @@ static int tg3_init_5401phy_dsp(struct tg3 *tp)
         return err;
 }
 
-static int tg3_copper_is_advertising_all(struct tg3 *tp)
+static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
 {
-        u32 adv_reg, all_mask;
+        u32 adv_reg, all_mask = 0;
+
+        if (mask & ADVERTISED_10baseT_Half)
+                all_mask |= ADVERTISE_10HALF;
+        if (mask & ADVERTISED_10baseT_Full)
+                all_mask |= ADVERTISE_10FULL;
+        if (mask & ADVERTISED_100baseT_Half)
+                all_mask |= ADVERTISE_100HALF;
+        if (mask & ADVERTISED_100baseT_Full)
+                all_mask |= ADVERTISE_100FULL;
 
         if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
                 return 0;
 
-        all_mask = (ADVERTISE_10HALF | ADVERTISE_10FULL |
-                    ADVERTISE_100HALF | ADVERTISE_100FULL);
         if ((adv_reg & all_mask) != all_mask)
                 return 0;
         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
                 u32 tg3_ctrl;
 
+                all_mask = 0;
+                if (mask & ADVERTISED_1000baseT_Half)
+                        all_mask |= ADVERTISE_1000HALF;
+                if (mask & ADVERTISED_1000baseT_Full)
+                        all_mask |= ADVERTISE_1000FULL;
+
                 if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
                         return 0;
 
-                all_mask = (MII_TG3_CTRL_ADV_1000_HALF |
-                            MII_TG3_CTRL_ADV_1000_FULL);
                 if ((tg3_ctrl & all_mask) != all_mask)
                         return 0;
         }
@@ -1885,7 +1890,8 @@ static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
                                 /* Force autoneg restart if we are exiting
                                  * low power mode.
                                  */
-                                if (!tg3_copper_is_advertising_all(tp))
+                                if (!tg3_copper_is_advertising_all(tp,
+                                                tp->link_config.advertising))
                                         current_link_up = 0;
                         } else {
                                 current_link_up = 0;
@@ -10156,7 +10162,7 @@ static int __devinit tg3_phy_probe(struct tg3 *tp)
 
         if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) &&
             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
-                u32 bmsr, adv_reg, tg3_ctrl;
+                u32 bmsr, adv_reg, tg3_ctrl, mask;
 
                 tg3_readphy(tp, MII_BMSR, &bmsr);
                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
@@ -10180,7 +10186,10 @@ static int __devinit tg3_phy_probe(struct tg3 *tp)
                                              MII_TG3_CTRL_ENABLE_AS_MASTER);
                 }
 
-                if (!tg3_copper_is_advertising_all(tp)) {
+                mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
+                        ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
+                        ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
+                if (!tg3_copper_is_advertising_all(tp, mask)) {
                         tg3_writephy(tp, MII_ADVERTISE, adv_reg);
 
                         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))