--- ixp425-eth-1.1-r4/ixp425_eth.c	2005-06-16 00:47:55.360598896 -0700
+++ ixp425-eth-1.1-r4/ixp425_eth.c	2005-06-16 18:42:09.840377651 -0700
@@ -1028,6 +1030,7 @@
  */
 
 /* PMU Timer reload : this should be done at each interrupt */
+#if 0 /* UNUSED - used for polling */
 static void dev_pmu_timer_restart(void)
 {
     __asm__(" mcr p14,0,%0,c1,c1,0\n"  /* write current counter */
@@ -1039,6 +1042,7 @@
             " mcr p14,0,r1,c4,c1,0\n"  /* enable interrupts */
             : : : "r1");
 }
+#endif
 
 /* Internal ISR : run a few thousand times per second and calls 
  * the queue manager dispatcher entry point.
@@ -1086,6 +1088,7 @@
 /* Internal ISR : run a few thousand times per second and calls 
  * the ethernet entry point.
  */
+#if 0 /* UNUSED - used for polling */
 static irqreturn_t dev_poll_os_isr(int irg, void *dev_id, struct pt_regs *regs)
 {
     int qlevel = __get_cpu_var(softnet_data).input_pkt_queue.qlen;
@@ -1127,8 +1130,10 @@
     ixEthTxFrameDoneQMCallback(0,0);
     return IRQ_HANDLED;
 }
+#endif
 
 /* initialize the PMU timer */
+#if 0 /* UNUSED - used for polling */
 static int dev_pmu_timer_init(void)
 {
     UINT32 controlRegisterMask =
@@ -1164,6 +1169,7 @@
     
     return 0;
 }
+#endif
 
 /* stops the timer when the module terminates */
 static void dev_pmu_timer_disable(void)
@@ -1636,6 +1636,7 @@
     return 0;
 }
 
+#if 0 /* UNUSED - used for polling */
 /* The QMgr dispatch entry point can be called from the 
  * IXP425_INT_LVL_QM1 irq (which will trigger
  * an interrupt for every packet) or a timer (which will
@@ -1686,7 +1687,7 @@
      */
     if (request_irq(IXP425_INT_LVL_QM1,
                     dev_qmgr_os_isr,
-                    SA_SHIRQ,
+                    SA_SHIRQ | SA_SAMPLE_RANDOM,
                     DRV_NAME,
                     (void *)IRQ_ANY_PARAMETER))
     {
@@ -1710,6 +1711,7 @@
   }
   return 0;
 }
+#endif
 
 /* Enable the MAC port.
  * Called on do_dev_open, dev_tx_timeout and mtu size changes
@@ -2234,7 +2236,7 @@
      */
     if (request_irq(IXP425_INT_LVL_QM1,
                     dev_qmgr_os_isr,
-                    SA_SHIRQ,
+                    SA_SHIRQ | SA_SAMPLE_RANDOM,
                     DRV_NAME,
                     (void *)IRQ_ANY_PARAMETER))
     {
@@ -2669,6 +2671,10 @@
 
     TRACE;
 
+#if 0 /* DISABLE polling */
+    /* Enable Interrupt driven driver
+     * see http://www.nslu2-linux.org/wiki/OpenSlug/StabilizeEthernetDriver
+     */
     if (no_csr_init == 0) /* module parameter */
     {
       /* The QMgr dispatch entry point is called from the IXP425_INT_LVL_QM1 irq
@@ -2681,6 +2687,7 @@
            return res;
 	}
     }
+#endif
 
     TRACE;