Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

[linux-2.6-omap-h63xx.git] / drivers / net / tulip / de2104x.c

diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index 77d9dd7ea34f647f77e04d1c30bc20257146de55..1b5edd646a8c924c835129280d9ad964186676f6 100644 (file)
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -842,7 +842,7 @@ static inline int de_is_running (struct de_private *de)
 static void de_stop_rxtx (struct de_private *de)
 {
        u32 macmode;
-       unsigned int work = 1000;
+       unsigned int i = 1300/100;
 
        macmode = dr32(MacMode);
        if (macmode & RxTx) {
@@ -850,10 +850,14 @@ static void de_stop_rxtx (struct de_private *de)
                dr32(MacMode);
        }
 
-       while (--work > 0) {
+       /* wait until in-flight frame completes.
+        * Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin)
+        * Typically expect this loop to end in < 50 us on 100BT.
+        */
+       while (--i) {
                if (!de_is_running(de))
                        return;
-               cpu_relax();
+               udelay(100);
        }
 
        printk(KERN_WARNING "%s: timeout expired stopping DMA\n", de->dev->name);
@@ -910,7 +914,8 @@ static void de_set_media (struct de_private *de)
        unsigned media = de->media_type;
        u32 macmode = dr32(MacMode);
 
-       BUG_ON(de_is_running(de));
+       if (de_is_running(de))
+               printk(KERN_WARNING "%s: chip is running while changing media!\n", de->dev->name);
 
        if (de->de21040)
                dw32(CSR11, FULL_DUPLEX_MAGIC);