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mii: Rewrite mii_ethtool_gset() to report mdio_support and lp_advertising

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Ignore link partner advertising flags while AN is not complete.

Compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2009-04-29 08:34:44 +00:00 committed by David S. Miller
parent 894b19a6b3
commit 5974700c28
1 changed files with 59 additions and 36 deletions
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95
drivers/net/mii.c
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@ -31,7 +31,27 @@
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/mdio.h>
static u32 mii_get_an(struct mii_if_info *mii, u16 addr)
{
u32 result = 0;
int advert;
advert = mii->mdio_read(mii->dev, mii->phy_id, addr);
if (advert & LPA_LPACK)
result |= ADVERTISED_Autoneg;
if (advert & ADVERTISE_10HALF)
result |= ADVERTISED_10baseT_Half;
if (advert & ADVERTISE_10FULL)
result |= ADVERTISED_10baseT_Full;
if (advert & ADVERTISE_100HALF)
result |= ADVERTISED_100baseT_Half;
if (advert & ADVERTISE_100FULL)
result |= ADVERTISED_100baseT_Full;
return result;
}
/**
* mii_ethtool_gset - get settings that are specified in @ecmd
@ -43,8 +63,8 @@
int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
{
struct net_device *dev = mii->dev;
u32 advert, bmcr, lpa, nego;
u32 advert2 = 0, bmcr2 = 0, lpa2 = 0;
u16 bmcr, bmsr, ctrl1000 = 0, stat1000 = 0;
u32 nego;
ecmd->supported =
(SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
@ -62,50 +82,51 @@ int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
/* this isn't fully supported at higher layers */
ecmd->phy_address = mii->phy_id;
ecmd->mdio_support = MDIO_SUPPORTS_C22;
ecmd->advertising = ADVERTISED_TP | ADVERTISED_MII;
advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE);
if (mii->supports_gmii)
advert2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
if (advert & ADVERTISE_10HALF)
ecmd->advertising |= ADVERTISED_10baseT_Half;
if (advert & ADVERTISE_10FULL)
ecmd->advertising |= ADVERTISED_10baseT_Full;
if (advert & ADVERTISE_100HALF)
ecmd->advertising |= ADVERTISED_100baseT_Half;
if (advert & ADVERTISE_100FULL)
ecmd->advertising |= ADVERTISED_100baseT_Full;
if (advert2 & ADVERTISE_1000HALF)
ecmd->advertising |= ADVERTISED_1000baseT_Half;
if (advert2 & ADVERTISE_1000FULL)
ecmd->advertising |= ADVERTISED_1000baseT_Full;
bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
lpa = mii->mdio_read(dev, mii->phy_id, MII_LPA);
bmsr = mii->mdio_read(dev, mii->phy_id, MII_BMSR);
if (mii->supports_gmii) {
bmcr2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
lpa2 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000);
ctrl1000 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
stat1000 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000);
}
if (bmcr & BMCR_ANENABLE) {
ecmd->advertising |= ADVERTISED_Autoneg;
ecmd->autoneg = AUTONEG_ENABLE;
nego = mii_nway_result(advert & lpa);
if ((bmcr2 & (ADVERTISE_1000HALF | ADVERTISE_1000FULL)) &
(lpa2 >> 2))
ecmd->speed = SPEED_1000;
else if (nego == LPA_100FULL || nego == LPA_100HALF)
ecmd->speed = SPEED_100;
else
ecmd->speed = SPEED_10;
if ((lpa2 & LPA_1000FULL) || nego == LPA_100FULL ||
nego == LPA_10FULL) {
ecmd->duplex = DUPLEX_FULL;
mii->full_duplex = 1;
ecmd->advertising |= mii_get_an(mii, MII_ADVERTISE);
if (ctrl1000 & ADVERTISE_1000HALF)
ecmd->advertising |= ADVERTISED_1000baseT_Half;
if (ctrl1000 & ADVERTISE_1000FULL)
ecmd->advertising |= ADVERTISED_1000baseT_Full;
if (bmsr & BMSR_ANEGCOMPLETE) {
ecmd->lp_advertising = mii_get_an(mii, MII_LPA);
if (stat1000 & LPA_1000HALF)
ecmd->lp_advertising |=
ADVERTISED_1000baseT_Half;
if (stat1000 & LPA_1000FULL)
ecmd->lp_advertising |=
ADVERTISED_1000baseT_Full;
} else {
ecmd->duplex = DUPLEX_HALF;
mii->full_duplex = 0;
ecmd->lp_advertising = 0;
}
nego = ecmd->advertising & ecmd->lp_advertising;
if (nego & (ADVERTISED_1000baseT_Full |
ADVERTISED_1000baseT_Half)) {
ecmd->speed = SPEED_1000;
ecmd->duplex = !!(nego & ADVERTISED_1000baseT_Full);
} else if (nego & (ADVERTISED_100baseT_Full |
ADVERTISED_100baseT_Half)) {
ecmd->speed = SPEED_100;
ecmd->duplex = !!(nego & ADVERTISED_100baseT_Full);
} else {
ecmd->speed = SPEED_10;
ecmd->duplex = !!(nego & ADVERTISED_10baseT_Full);
}
} else {
ecmd->autoneg = AUTONEG_DISABLE;
@ -116,6 +137,8 @@ int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
}
mii->full_duplex = ecmd->duplex;
/* ignore maxtxpkt, maxrxpkt for now */
return 0;