sky2: fix limited auto negotiation
The sky2 driver would always try all possible supported speeds even
if the user only asked for a limited set of speed/duplex combinations.
Reported-by: Mohsen Hariri <m.hariri@gmail.com>
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 39996bf..b561092 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -3411,18 +3411,15 @@
u32 modes = SUPPORTED_10baseT_Half
| SUPPORTED_10baseT_Full
| SUPPORTED_100baseT_Half
- | SUPPORTED_100baseT_Full
- | SUPPORTED_Autoneg | SUPPORTED_TP;
+ | SUPPORTED_100baseT_Full;
if (hw->flags & SKY2_HW_GIGABIT)
modes |= SUPPORTED_1000baseT_Half
| SUPPORTED_1000baseT_Full;
return modes;
} else
- return SUPPORTED_1000baseT_Half
- | SUPPORTED_1000baseT_Full
- | SUPPORTED_Autoneg
- | SUPPORTED_FIBRE;
+ return SUPPORTED_1000baseT_Half
+ | SUPPORTED_1000baseT_Full;
}
static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
@@ -3436,9 +3433,11 @@
if (sky2_is_copper(hw)) {
ecmd->port = PORT_TP;
ecmd->speed = sky2->speed;
+ ecmd->supported |= SUPPORTED_Autoneg | SUPPORTED_TP;
} else {
ecmd->speed = SPEED_1000;
ecmd->port = PORT_FIBRE;
+ ecmd->supported |= SUPPORTED_Autoneg | SUPPORTED_FIBRE;
}
ecmd->advertising = sky2->advertising;
@@ -3455,8 +3454,19 @@
u32 supported = sky2_supported_modes(hw);
if (ecmd->autoneg == AUTONEG_ENABLE) {
+ if (ecmd->advertising & ~supported)
+ return -EINVAL;
+
+ if (sky2_is_copper(hw))
+ sky2->advertising = ecmd->advertising |
+ ADVERTISED_TP |
+ ADVERTISED_Autoneg;
+ else
+ sky2->advertising = ecmd->advertising |
+ ADVERTISED_FIBRE |
+ ADVERTISED_Autoneg;
+
sky2->flags |= SKY2_FLAG_AUTO_SPEED;
- ecmd->advertising = supported;
sky2->duplex = -1;
sky2->speed = -1;
} else {
@@ -3500,8 +3510,6 @@
sky2->flags &= ~SKY2_FLAG_AUTO_SPEED;
}
- sky2->advertising = ecmd->advertising;
-
if (netif_running(dev)) {
sky2_phy_reinit(sky2);
sky2_set_multicast(dev);