* [PATCH 1/2] sky2: fix limited auto negotiation
[not found] <AANLkTimGZbDNeRccp4SkgOsJsLXjyKNq+ma4UvW=-5GG@mail.gmail.com>
@ 2011-01-07 4:40 ` Stephen Hemminger
2011-01-09 23:53 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Stephen Hemminger @ 2011-01-07 4:40 UTC (permalink / raw)
To: Mohsen Hariri, David Miller; +Cc: netdev
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>
--- a/drivers/net/sky2.c 2011-01-04 08:46:31.796080594 -0800
+++ b/drivers/net/sky2.c 2011-01-06 20:09:25.660684849 -0800
@@ -3411,18 +3411,15 @@ static u32 sky2_supported_modes(const st
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 @@ static int sky2_get_settings(struct net_
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 @@ static int sky2_set_settings(struct net_
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 @@ static int sky2_set_settings(struct net_
sky2->flags &= ~SKY2_FLAG_AUTO_SPEED;
}
- sky2->advertising = ecmd->advertising;
-
if (netif_running(dev)) {
sky2_phy_reinit(sky2);
sky2_set_multicast(dev);
^ permalink raw reply [flat|nested] 2+ messages in thread