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74769fe7 AF |
1 | /* |
2 | * QTest testcase for Realtek 8139 NIC | |
3 | * | |
4 | * Copyright (c) 2013-2014 SUSE LINUX Products GmbH | |
5 | * | |
6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
7 | * See the COPYING file in the top-level directory. | |
8 | */ | |
9 | ||
681c28a3 | 10 | #include "qemu/osdep.h" |
74769fe7 | 11 | #include "libqtest.h" |
069bb583 | 12 | #include "libqos/pci-pc.h" |
e0cf11f3 | 13 | #include "qemu/timer.h" |
069bb583 | 14 | #include "qemu-common.h" |
74769fe7 AF |
15 | |
16 | /* Tests only initialization so far. TODO: Replace with functional tests */ | |
17 | static void nop(void) | |
18 | { | |
19 | } | |
20 | ||
37b9ab92 | 21 | #define CLK 33333333 |
069bb583 FZ |
22 | |
23 | static QPCIBus *pcibus; | |
24 | static QPCIDevice *dev; | |
25 | static void *dev_base; | |
26 | ||
27 | static void save_fn(QPCIDevice *dev, int devfn, void *data) | |
28 | { | |
29 | QPCIDevice **pdev = (QPCIDevice **) data; | |
30 | ||
31 | *pdev = dev; | |
32 | } | |
33 | ||
34 | static QPCIDevice *get_device(void) | |
35 | { | |
36 | QPCIDevice *dev; | |
37 | ||
38 | pcibus = qpci_init_pc(); | |
39 | qpci_device_foreach(pcibus, 0x10ec, 0x8139, save_fn, &dev); | |
40 | g_assert(dev != NULL); | |
41 | ||
42 | return dev; | |
43 | } | |
44 | ||
45 | #define PORT(name, len, val) \ | |
46 | static unsigned __attribute__((unused)) in_##name(void) \ | |
47 | { \ | |
48 | unsigned res = qpci_io_read##len(dev, dev_base+(val)); \ | |
49 | g_test_message("*%s -> %x\n", #name, res); \ | |
50 | return res; \ | |
51 | } \ | |
52 | static void out_##name(unsigned v) \ | |
53 | { \ | |
54 | g_test_message("%x -> *%s\n", v, #name); \ | |
55 | qpci_io_write##len(dev, dev_base+(val), v); \ | |
56 | } | |
57 | ||
58 | PORT(Timer, l, 0x48) | |
59 | PORT(IntrMask, w, 0x3c) | |
60 | PORT(IntrStatus, w, 0x3E) | |
61 | PORT(TimerInt, l, 0x54) | |
62 | ||
63 | #define fatal(...) do { g_test_message(__VA_ARGS__); g_assert(0); } while (0) | |
64 | ||
65 | static void test_timer(void) | |
66 | { | |
67 | const unsigned from = 0.95 * CLK; | |
68 | const unsigned to = 1.6 * CLK; | |
69 | unsigned prev, curr, next; | |
70 | unsigned cnt, diff; | |
71 | ||
72 | out_IntrMask(0); | |
73 | ||
74 | in_IntrStatus(); | |
75 | in_Timer(); | |
76 | in_Timer(); | |
77 | ||
78 | /* Test 1. test counter continue and continue */ | |
79 | out_TimerInt(0); /* disable timer */ | |
80 | out_IntrStatus(0x4000); | |
81 | out_Timer(12345); /* reset timer to 0 */ | |
82 | curr = in_Timer(); | |
83 | if (curr > 0.1 * CLK) { | |
84 | fatal("time too big %u\n", curr); | |
85 | } | |
86 | for (cnt = 0; ; ) { | |
13566fe3 | 87 | clock_step(1 * NANOSECONDS_PER_SECOND); |
069bb583 FZ |
88 | prev = curr; |
89 | curr = in_Timer(); | |
90 | ||
91 | /* test skip is in a specific range */ | |
92 | diff = (curr-prev) & 0xffffffffu; | |
93 | if (diff < from || diff > to) { | |
94 | fatal("Invalid diff %u (%u-%u)\n", diff, from, to); | |
95 | } | |
96 | if (curr < prev && ++cnt == 3) { | |
97 | break; | |
98 | } | |
99 | } | |
100 | ||
101 | /* Test 2. Check we didn't get an interrupt with TimerInt == 0 */ | |
102 | if (in_IntrStatus() & 0x4000) { | |
103 | fatal("got an interrupt\n"); | |
104 | } | |
105 | ||
106 | /* Test 3. Setting TimerInt to 1 and Timer to 0 get interrupt */ | |
107 | out_TimerInt(1); | |
108 | out_Timer(0); | |
109 | clock_step(40); | |
110 | if ((in_IntrStatus() & 0x4000) == 0) { | |
111 | fatal("we should have an interrupt here!\n"); | |
112 | } | |
113 | ||
114 | /* Test 3. Check acknowledge */ | |
115 | out_IntrStatus(0x4000); | |
116 | if (in_IntrStatus() & 0x4000) { | |
117 | fatal("got an interrupt\n"); | |
118 | } | |
119 | ||
120 | /* Test. Status set after Timer reset */ | |
121 | out_Timer(0); | |
122 | out_TimerInt(0); | |
123 | out_IntrStatus(0x4000); | |
124 | curr = in_Timer(); | |
125 | out_TimerInt(curr + 0.5 * CLK); | |
13566fe3 | 126 | clock_step(1 * NANOSECONDS_PER_SECOND); |
069bb583 FZ |
127 | out_Timer(0); |
128 | if ((in_IntrStatus() & 0x4000) == 0) { | |
129 | fatal("we should have an interrupt here!\n"); | |
130 | } | |
131 | ||
132 | /* Test. Status set after TimerInt reset */ | |
133 | out_Timer(0); | |
134 | out_TimerInt(0); | |
135 | out_IntrStatus(0x4000); | |
136 | curr = in_Timer(); | |
137 | out_TimerInt(curr + 0.5 * CLK); | |
13566fe3 | 138 | clock_step(1 * NANOSECONDS_PER_SECOND); |
069bb583 FZ |
139 | out_TimerInt(0); |
140 | if ((in_IntrStatus() & 0x4000) == 0) { | |
141 | fatal("we should have an interrupt here!\n"); | |
142 | } | |
143 | ||
144 | /* Test 4. Increment TimerInt we should see an interrupt */ | |
145 | curr = in_Timer(); | |
146 | next = curr + 5.0 * CLK; | |
147 | out_TimerInt(next); | |
148 | for (cnt = 0; ; ) { | |
13566fe3 | 149 | clock_step(1 * NANOSECONDS_PER_SECOND); |
069bb583 FZ |
150 | prev = curr; |
151 | curr = in_Timer(); | |
152 | diff = (curr-prev) & 0xffffffffu; | |
153 | if (diff < from || diff > to) { | |
154 | fatal("Invalid diff %u (%u-%u)\n", diff, from, to); | |
155 | } | |
156 | if (cnt < 3 && curr > next) { | |
157 | if ((in_IntrStatus() & 0x4000) == 0) { | |
158 | fatal("we should have an interrupt here!\n"); | |
159 | } | |
160 | out_IntrStatus(0x4000); | |
161 | next = curr + 5.0 * CLK; | |
162 | out_TimerInt(next); | |
163 | if (++cnt == 3) { | |
164 | out_TimerInt(1); | |
165 | } | |
166 | /* Test 5. Second time we pass from 0 should see an interrupt */ | |
167 | } else if (cnt >= 3 && curr < prev) { | |
168 | /* here we should have an interrupt */ | |
169 | if ((in_IntrStatus() & 0x4000) == 0) { | |
170 | fatal("we should have an interrupt here!\n"); | |
171 | } | |
172 | out_IntrStatus(0x4000); | |
173 | if (++cnt == 5) { | |
174 | break; | |
175 | } | |
176 | } | |
177 | } | |
178 | ||
179 | g_test_message("Everythink is ok!\n"); | |
180 | } | |
181 | ||
182 | ||
183 | static void test_init(void) | |
184 | { | |
185 | uint64_t barsize; | |
186 | ||
187 | dev = get_device(); | |
188 | ||
189 | dev_base = qpci_iomap(dev, 0, &barsize); | |
190 | ||
191 | g_assert(dev_base != NULL); | |
192 | ||
193 | qpci_device_enable(dev); | |
194 | ||
195 | test_timer(); | |
196 | } | |
197 | ||
74769fe7 AF |
198 | int main(int argc, char **argv) |
199 | { | |
200 | int ret; | |
201 | ||
202 | g_test_init(&argc, &argv, NULL); | |
203 | qtest_add_func("/rtl8139/nop", nop); | |
069bb583 | 204 | qtest_add_func("/rtl8139/timer", test_init); |
74769fe7 AF |
205 | |
206 | qtest_start("-device rtl8139"); | |
207 | ret = g_test_run(); | |
208 | ||
209 | qtest_end(); | |
210 | ||
211 | return ret; | |
212 | } |