Patch: eepro100-speedo-debug-1
From: Dragan Stancevic <[EMAIL PROTECTED]>

Debugging tweaks for eepro100 driver:
 * Add ioctl to adjust speedo_debug.
 * Print diagnostic when Tx ring fills up.
 * Adjust debugging level of interrupt diagnostics.
 * Eliminate compilation warning. 

Index: linux/drivers/net/eepro100.c
--- linux/drivers/net/eepro100.c:1.4    Wed Sep  6 12:54:42 2000
+++ linux/drivers/net/eepro100.c        Thu Sep 28 01:07:37 2000
@@ -1,5 +1,3 @@
-#define USE_IO
-
 /* drivers/net/eepro100.c: An Intel i82557-559 Ethernet driver for Linux. */
 /*
    NOTICE: this version of the driver is supposed to work with 2.2 kernels.
@@ -39,6 +37,11 @@
                Honor PortReset timing specification.
 */
 
+/*
+ * This might fix initialization problems.  --Dragan
+ */
+#define USE_IO 1
+
 static const char *version =
 "eepro100.c:v1.09j-t 9/29/99 Donald Becker 
http://cesdis.gsfc.nasa.gov/linux/drivers/eepro100.html\n"
 "eepro100.c: $Revision: 1.20.2.10 $ 2000/05/31 Modified by Andrey V. Savochkin 
<[EMAIL PROTECTED]> and others\n";
@@ -1147,8 +1150,6 @@
 static void speedo_show_state(struct net_device *dev)
 {
        struct speedo_private *sp = (struct speedo_private *)dev->priv;
-       long ioaddr = dev->base_addr;
-       int phy_num = sp->phy[0] & 0x1f;
        int i;
 
        /* Print a few items for debugging. */
@@ -1175,12 +1176,17 @@
                                           (unsigned)sp->rx_ringp[i]->status : 0);
 
 #if 0
+   {
+       long ioaddr = dev->base_addr;
+       int phy_num = sp->phy[0] & 0x1f;
+
        for (i = 0; i < 16; i++) {
                /* FIXME: what does it mean?  --SAW */
                if (i == 6) i = 21;
                printk(KERN_DEBUG "%s:  PHY index %d register %d is %4.4x.\n",
                           dev->name, phy_num, i, mdio_read(ioaddr, phy_num, i));
        }
+   }
 #endif
 
 }
@@ -1508,7 +1514,7 @@
                   FCP and ER interrupts --Dragan */
                outw(status & 0xfc00, ioaddr + SCBStatus);
 
-               if (speedo_debug > 4)
+               if (speedo_debug > 3)
                        printk(KERN_DEBUG "%s: interrupt  status=%#4.4x.\n",
                                   dev->name, status);
 
@@ -1931,6 +1937,11 @@
                mdio_write(ioaddr, data[0], data[1], data[2]);
                end_bh_atomic();
                return 0;
+       case SIOCDEVPRIVATE+5:
+               speedo_debug = *(int *)rq->ifr_data;
+               printk(KERN_DEBUG "%s: set debug level to [%d].\n",
+                               dev->name, speedo_debug);
+               return 0;
        default:
                return -EOPNOTSUPP;
        }
@@ -1970,6 +1981,10 @@
            /* The Tx ring is full -- don't add anything!  Hope the mode will be
                 * set again later. */
                sp->rx_mode = -1;
+               if(speedo_debug < 2)
+                       printk(KERN_DEBUG "%s: The Tx ring is full -- don't add 
+anything!\n"
+                               "sp->cur_tx[%d], sp->dirty_tx[%d], TX_RING_SIZE[%d], 
+TX_MULTICAST_SIZE[%d]\n",
+                               dev->name, sp->cur_tx, sp->dirty_tx, TX_RING_SIZE, 
+TX_MULTICAST_SIZE);
                return;
        }
 

-- 
Chip Salzenberg              - a.k.a. -              <[EMAIL PROTECTED]>
"I wanted to play hopscotch with the impenetrable mystery of existence,
    but he stepped in a wormhole and had to go in early."  // MST3K
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