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Diffstat (limited to 'tests/qtest/rtl8139-test.c')
| -rw-r--r-- | tests/qtest/rtl8139-test.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/tests/qtest/rtl8139-test.c b/tests/qtest/rtl8139-test.c new file mode 100644 index 0000000..4506049 --- /dev/null +++ b/tests/qtest/rtl8139-test.c @@ -0,0 +1,211 @@ +/* + * QTest testcase for Realtek 8139 NIC + * + * Copyright (c) 2013-2014 SUSE LINUX Products GmbH + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "libqtest-single.h" +#include "libqos/pci-pc.h" +#include "qemu/timer.h" +#include "qemu-common.h" + +/* Tests only initialization so far. TODO: Replace with functional tests */ +static void nop(void) +{ +} + +#define CLK 33333333 + +static QPCIBus *pcibus; +static QPCIDevice *dev; +static QPCIBar dev_bar; + +static void save_fn(QPCIDevice *dev, int devfn, void *data) +{ + QPCIDevice **pdev = (QPCIDevice **) data; + + *pdev = dev; +} + +static QPCIDevice *get_device(void) +{ + QPCIDevice *dev; + + pcibus = qpci_new_pc(global_qtest, NULL); + qpci_device_foreach(pcibus, 0x10ec, 0x8139, save_fn, &dev); + g_assert(dev != NULL); + + return dev; +} + +#define PORT(name, len, val) \ +static unsigned __attribute__((unused)) in_##name(void) \ +{ \ + unsigned res = qpci_io_read##len(dev, dev_bar, (val)); \ + g_test_message("*%s -> %x", #name, res); \ + return res; \ +} \ +static void out_##name(unsigned v) \ +{ \ + g_test_message("%x -> *%s", v, #name); \ + qpci_io_write##len(dev, dev_bar, (val), v); \ +} + +PORT(Timer, l, 0x48) +PORT(IntrMask, w, 0x3c) +PORT(IntrStatus, w, 0x3E) +PORT(TimerInt, l, 0x54) + +#define fatal(...) do { g_test_message(__VA_ARGS__); g_assert(0); } while (0) + +static void test_timer(void) +{ + const unsigned from = 0.95 * CLK; + const unsigned to = 1.6 * CLK; + unsigned prev, curr, next; + unsigned cnt, diff; + + out_IntrMask(0); + + in_IntrStatus(); + in_Timer(); + in_Timer(); + + /* Test 1. test counter continue and continue */ + out_TimerInt(0); /* disable timer */ + out_IntrStatus(0x4000); + out_Timer(12345); /* reset timer to 0 */ + curr = in_Timer(); + if (curr > 0.1 * CLK) { + fatal("time too big %u\n", curr); + } + for (cnt = 0; ; ) { + clock_step(1 * NANOSECONDS_PER_SECOND); + prev = curr; + curr = in_Timer(); + + /* test skip is in a specific range */ + diff = (curr-prev) & 0xffffffffu; + if (diff < from || diff > to) { + fatal("Invalid diff %u (%u-%u)\n", diff, from, to); + } + if (curr < prev && ++cnt == 3) { + break; + } + } + + /* Test 2. Check we didn't get an interrupt with TimerInt == 0 */ + if (in_IntrStatus() & 0x4000) { + fatal("got an interrupt\n"); + } + + /* Test 3. Setting TimerInt to 1 and Timer to 0 get interrupt */ + out_TimerInt(1); + out_Timer(0); + clock_step(40); + if ((in_IntrStatus() & 0x4000) == 0) { + fatal("we should have an interrupt here!\n"); + } + + /* Test 3. Check acknowledge */ + out_IntrStatus(0x4000); + if (in_IntrStatus() & 0x4000) { + fatal("got an interrupt\n"); + } + + /* Test. Status set after Timer reset */ + out_Timer(0); + out_TimerInt(0); + out_IntrStatus(0x4000); + curr = in_Timer(); + out_TimerInt(curr + 0.5 * CLK); + clock_step(1 * NANOSECONDS_PER_SECOND); + out_Timer(0); + if ((in_IntrStatus() & 0x4000) == 0) { + fatal("we should have an interrupt here!\n"); + } + + /* Test. Status set after TimerInt reset */ + out_Timer(0); + out_TimerInt(0); + out_IntrStatus(0x4000); + curr = in_Timer(); + out_TimerInt(curr + 0.5 * CLK); + clock_step(1 * NANOSECONDS_PER_SECOND); + out_TimerInt(0); + if ((in_IntrStatus() & 0x4000) == 0) { + fatal("we should have an interrupt here!\n"); + } + + /* Test 4. Increment TimerInt we should see an interrupt */ + curr = in_Timer(); + next = curr + 5.0 * CLK; + out_TimerInt(next); + for (cnt = 0; ; ) { + clock_step(1 * NANOSECONDS_PER_SECOND); + prev = curr; + curr = in_Timer(); + diff = (curr-prev) & 0xffffffffu; + if (diff < from || diff > to) { + fatal("Invalid diff %u (%u-%u)\n", diff, from, to); + } + if (cnt < 3 && curr > next) { + if ((in_IntrStatus() & 0x4000) == 0) { + fatal("we should have an interrupt here!\n"); + } + out_IntrStatus(0x4000); + next = curr + 5.0 * CLK; + out_TimerInt(next); + if (++cnt == 3) { + out_TimerInt(1); + } + /* Test 5. Second time we pass from 0 should see an interrupt */ + } else if (cnt >= 3 && curr < prev) { + /* here we should have an interrupt */ + if ((in_IntrStatus() & 0x4000) == 0) { + fatal("we should have an interrupt here!\n"); + } + out_IntrStatus(0x4000); + if (++cnt == 5) { + break; + } + } + } + + g_test_message("Everythink is ok!"); +} + + +static void test_init(void) +{ + uint64_t barsize; + + dev = get_device(); + + dev_bar = qpci_iomap(dev, 0, &barsize); + + qpci_device_enable(dev); + + test_timer(); +} + +int main(int argc, char **argv) +{ + int ret; + + qtest_start("-device rtl8139"); + + g_test_init(&argc, &argv, NULL); + qtest_add_func("/rtl8139/nop", nop); + qtest_add_func("/rtl8139/timer", test_init); + + ret = g_test_run(); + + qtest_end(); + + return ret; +} |