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Patch: link state detection for 8139too against 2.5.41

To: jgarzik@xxxxxxxxxxxxxxxx
Subject: Patch: link state detection for 8139too against 2.5.41
From: Stefan Rompf <srompf@xxxxxx>
Date: Sat, 12 Oct 2002 01:55:04 +0200
Cc: netdev@xxxxxxxxxxx
Sender: netdev-bounce@xxxxxxxxxxx
Hi Jeff,

attached you find a patch that enables link state detection for the
8139too driver. It applies cleanly against 2.5.41 and with some line
offset against 2.4.19.

I've written this stuff on a friends' computer using 2.4.18, so it is
only slightly tested.

Cheers, Stefan
--- linux/drivers/net/8139too.c.orig    Tue Oct  1 09:05:46 2002
+++ linux/drivers/net/8139too.c Thu Oct 10 00:37:37 2002
@@ -1534,9 +1534,16 @@
                                 struct rtl8139_private *tp,
                                 void *ioaddr)
 {
-       int mii_lpa;
+       int mii_lpa, mii_bmsr;
 
        mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA);
+       mii_bmsr = mdio_read(dev, tp->phys[0], MII_BMSR);
+
+       if (mii_bmsr & BMSR_LSTATUS && !netif_carrier_ok(dev)) {
+               netif_carrier_on(dev);
+       } else if (netif_carrier_ok(dev)) {
+               netif_carrier_off(dev);
+       }
 
        if (!tp->mii.force_media && mii_lpa != 0xffff) {
                int duplex = (mii_lpa & LPA_100FULL)
@@ -1563,7 +1570,7 @@
                }
        }
 
-       next_tick = HZ * 60;
+       next_tick = HZ * 3;
 
        rtl8139_tune_twister (dev, tp);
 
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