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authorfrançois romieu <romieu@fr.zoreil.com>2009-05-19 10:46:48 +0000
committerDavid S. Miller <davem@davemloft.net>2009-05-19 14:31:28 -0700
commit3577aa1bd7efc9c474f59738d2fb89c168168d55 (patch)
treeb5ba4f04582ce0493f905d08a7d386d75c3bbe7a /drivers/net/r8169.c
parent381f05172bdca076390abd84813b09ea423ae8a9 (diff)
downloadlinux-3577aa1bd7efc9c474f59738d2fb89c168168d55.tar.bz2
r8169: allow true forced mode setting
Due to mostly historic reasons, including a lack of reliability of the link handling (especially with the older 8169), the current r8169 driver emulates forced mode setting by limiting the advertised modes. With this change the driver allows real 10/100 forced mode settings on the 8169 and 8101/8102. Original idea by Vincent Steenhoute. The RTL_GIGA_MAC_VER_03 tweak was extracted from Realtek's r8169 v6.010.00 driver. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Tested-by: Jean Delvare <jdelvare@suse.de> Cc: Edward Hsu <edward_hsu@realtek.com.tw> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/r8169.c')
-rw-r--r--drivers/net/r8169.c112
1 files changed, 59 insertions, 53 deletions
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index b0573146934b..fb2e50da0e9c 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -843,75 +843,81 @@ static int rtl8169_set_speed_xmii(struct net_device *dev,
{
struct rtl8169_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
- int auto_nego, giga_ctrl;
-
- auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
- auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
- ADVERTISE_100HALF | ADVERTISE_100FULL);
- giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
- giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+ int giga_ctrl, bmcr;
if (autoneg == AUTONEG_ENABLE) {
+ int auto_nego;
+
+ auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
ADVERTISE_100HALF | ADVERTISE_100FULL);
- giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
- } else {
- if (speed == SPEED_10)
- auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL;
- else if (speed == SPEED_100)
- auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL;
- else if (speed == SPEED_1000)
- giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
-
- if (duplex == DUPLEX_HALF)
- auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL);
-
- if (duplex == DUPLEX_FULL)
- auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF);
+ auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
- /* This tweak comes straight from Realtek's driver. */
- if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) &&
- ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_16))) {
- auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA;
- }
- }
+ giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
+ giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
- /* The 8100e/8101e/8102e do Fast Ethernet only. */
- if ((tp->mac_version == RTL_GIGA_MAC_VER_07) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_08) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_09) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_10) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_13) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_14) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_15) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
- if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) &&
- netif_msg_link(tp)) {
+ /* The 8100e/8101e/8102e do Fast Ethernet only. */
+ if ((tp->mac_version != RTL_GIGA_MAC_VER_07) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_08) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_09) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_10) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_13) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_14) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_15) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_16)) {
+ giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
+ } else if (netif_msg_link(tp)) {
printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n",
dev->name);
}
- giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
- }
- auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+ bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
+ (tp->mac_version >= RTL_GIGA_MAC_VER_17)) {
+ /*
+ * Wake up the PHY.
+ * Vendor specific (0x1f) and reserved (0x0e) MII
+ * registers.
+ */
+ mdio_write(ioaddr, 0x1f, 0x0000);
+ mdio_write(ioaddr, 0x0e, 0x0000);
+ }
+
+ mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
+ mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
+ } else {
+ giga_ctrl = 0;
+
+ if (speed == SPEED_10)
+ bmcr = 0;
+ else if (speed == SPEED_100)
+ bmcr = BMCR_SPEED100;
+ else
+ return -EINVAL;
+
+ if (duplex == DUPLEX_FULL)
+ bmcr |= BMCR_FULLDPLX;
- if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
- (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
- (tp->mac_version >= RTL_GIGA_MAC_VER_17)) {
- /*
- * Wake up the PHY.
- * Vendor specific (0x1f) and reserved (0x0e) MII registers.
- */
mdio_write(ioaddr, 0x1f, 0x0000);
- mdio_write(ioaddr, 0x0e, 0x0000);
}
tp->phy_1000_ctrl_reg = giga_ctrl;
- mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
- mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
- mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
+ mdio_write(ioaddr, MII_BMCR, bmcr);
+
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
+ if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) {
+ mdio_write(ioaddr, 0x17, 0x2138);
+ mdio_write(ioaddr, 0x0e, 0x0260);
+ } else {
+ mdio_write(ioaddr, 0x17, 0x2108);
+ mdio_write(ioaddr, 0x0e, 0x0000);
+ }
+ }
+
return 0;
}