@samitouri / QOSamiQemu
Code Commits Issues Pulls Sessions CI/CD
master
master
c 226 lines 5.39 KB
Raw
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
10 #include "qemu/osdep.h"
11 #include "libqtest-single.h"
12 #include "libqos/pci-pc.h"
13 #include "qemu/timer.h"
14
15 static int verbosity_level;
16
17 /* Tests only initialization so far. TODO: Replace with functional tests */
18 static void nop(void)
19 {
20 }
21
22 #define CLK 33333333
23
24 static QPCIBus *pcibus;
25 static QPCIDevice *pcidev;
26 static QPCIBar dev_bar;
27
28 static void save_fn(QPCIDevice *dev, int devfn, void *data)
29 {
30 QPCIDevice **pdev = (QPCIDevice **) data;
31
32 *pdev = dev;
33 }
34
35 static QPCIDevice *get_device(void)
36 {
37 QPCIDevice *dev;
38
39 pcibus = qpci_new_pc(global_qtest, NULL);
40 qpci_device_foreach(pcibus, 0x10ec, 0x8139, save_fn, &dev);
41 g_assert(dev != NULL);
42
43 return dev;
44 }
45
46 #define PORT(name, len, val) \
47 static unsigned __attribute__((unused)) in_##name(void) \
48 { \
49 unsigned res = qpci_io_read##len(pcidev, dev_bar, (val)); \
50 if (verbosity_level >= 2) { \
51 g_test_message("*%s -> %x", #name, res); \
52 } \
53 return res; \
54 } \
55 static void out_##name(unsigned v) \
56 { \
57 if (verbosity_level >= 2) { \
58 g_test_message("%x -> *%s", v, #name); \
59 } \
60 qpci_io_write##len(pcidev, dev_bar, (val), v); \
61 }
62
63 PORT(Timer, l, 0x48)
64 PORT(IntrMask, w, 0x3c)
65 PORT(IntrStatus, w, 0x3E)
66 PORT(TimerInt, l, 0x54)
67
68 #define fatal(...) do { g_test_message(__VA_ARGS__); g_assert_not_reached(); } while (0)
69
70 static void test_timer(void)
71 {
72 const unsigned from = 0.95 * CLK;
73 const unsigned to = 1.6 * CLK;
74 unsigned prev, curr, next;
75 unsigned cnt, diff;
76
77 out_IntrMask(0);
78
79 in_IntrStatus();
80 in_Timer();
81 in_Timer();
82
83 /* Test 1. test counter continue and continue */
84 out_TimerInt(0); /* disable timer */
85 out_IntrStatus(0x4000);
86 out_Timer(12345); /* reset timer to 0 */
87 curr = in_Timer();
88 if (curr > 0.1 * CLK) {
89 fatal("time too big %u\n", curr);
90 }
91 for (cnt = 0; ; ) {
92 clock_step(1 * NANOSECONDS_PER_SECOND);
93 prev = curr;
94 curr = in_Timer();
95
96 /* test skip is in a specific range */
97 diff = (curr-prev) & 0xffffffffu;
98 if (diff < from || diff > to) {
99 fatal("Invalid diff %u (%u-%u)\n", diff, from, to);
100 }
101 if (curr < prev && ++cnt == 3) {
102 break;
103 }
104 }
105
106 /* Test 2. Check we didn't get an interrupt with TimerInt == 0 */
107 if (in_IntrStatus() & 0x4000) {
108 fatal("got an interrupt\n");
109 }
110
111 /* Test 3. Setting TimerInt to 1 and Timer to 0 get interrupt */
112 out_TimerInt(1);
113 out_Timer(0);
114 clock_step(40);
115 if ((in_IntrStatus() & 0x4000) == 0) {
116 fatal("we should have an interrupt here!\n");
117 }
118
119 /* Test 3. Check acknowledge */
120 out_IntrStatus(0x4000);
121 if (in_IntrStatus() & 0x4000) {
122 fatal("got an interrupt\n");
123 }
124
125 /* Test. Status set after Timer reset */
126 out_Timer(0);
127 out_TimerInt(0);
128 out_IntrStatus(0x4000);
129 curr = in_Timer();
130 out_TimerInt(curr + 0.5 * CLK);
131 clock_step(1 * NANOSECONDS_PER_SECOND);
132 out_Timer(0);
133 if ((in_IntrStatus() & 0x4000) == 0) {
134 fatal("we should have an interrupt here!\n");
135 }
136
137 /* Test. Status set after TimerInt reset */
138 out_Timer(0);
139 out_TimerInt(0);
140 out_IntrStatus(0x4000);
141 curr = in_Timer();
142 out_TimerInt(curr + 0.5 * CLK);
143 clock_step(1 * NANOSECONDS_PER_SECOND);
144 out_TimerInt(0);
145 if ((in_IntrStatus() & 0x4000) == 0) {
146 fatal("we should have an interrupt here!\n");
147 }
148
149 /* Test 4. Increment TimerInt we should see an interrupt */
150 curr = in_Timer();
151 next = curr + 5.0 * CLK;
152 out_TimerInt(next);
153 for (cnt = 0; ; ) {
154 clock_step(1 * NANOSECONDS_PER_SECOND);
155 prev = curr;
156 curr = in_Timer();
157 diff = (curr-prev) & 0xffffffffu;
158 if (diff < from || diff > to) {
159 fatal("Invalid diff %u (%u-%u)\n", diff, from, to);
160 }
161 if (cnt < 3 && curr > next) {
162 if ((in_IntrStatus() & 0x4000) == 0) {
163 fatal("we should have an interrupt here!\n");
164 }
165 out_IntrStatus(0x4000);
166 next = curr + 5.0 * CLK;
167 out_TimerInt(next);
168 if (++cnt == 3) {
169 out_TimerInt(1);
170 }
171 /* Test 5. Second time we pass from 0 should see an interrupt */
172 } else if (cnt >= 3 && curr < prev) {
173 /* here we should have an interrupt */
174 if ((in_IntrStatus() & 0x4000) == 0) {
175 fatal("we should have an interrupt here!\n");
176 }
177 out_IntrStatus(0x4000);
178 if (++cnt == 5) {
179 break;
180 }
181 }
182 }
183
184 g_test_message("Everythink is ok!");
185 }
186
187
188 static void test_init(void)
189 {
190 uint64_t barsize;
191
192 pcidev = get_device();
193
194 dev_bar = qpci_iomap(pcidev, 0, &barsize);
195
196 qpci_device_enable(pcidev);
197
198 test_timer();
199 }
200
201 int main(int argc, char **argv)
202 {
203 int ret;
204 char *v_env = getenv("V");
205
206 if (v_env) {
207 verbosity_level = atoi(v_env);
208 }
209
210 g_test_init(&argc, &argv, NULL);
211
212 if (!qtest_has_device("rtl8139")) {
213 return 0;
214 }
215
216 qtest_start("-device rtl8139");
217
218 qtest_add_func("/rtl8139/nop", nop);
219 qtest_add_func("/rtl8139/timer", test_init);
220
221 ret = g_test_run();
222
223 qtest_end();
224
225 return ret;
226 }