1 files changed, 98 insertions, 0 deletions
diff --git a/recipes/ixp425-eth/files/intdriven.patch b/recipes/ixp425-eth/files/intdriven.patch
new file mode 100644
index 0000000000..88b2444b5e
--- /dev/null
+++ b/recipes/ixp425-eth/files/intdriven.patch
@@ -0,0 +1,98 @@
+--- 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;
+