1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
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;
|
