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/*
* 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.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 void *dev_base;
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_init_pc(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_base+(val)); \
g_test_message("*%s -> %x\n", #name, res); \
return res; \
} \
static void out_##name(unsigned v) \
{ \
g_test_message("%x -> *%s\n", v, #name); \
qpci_io_write##len(dev, dev_base+(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!\n");
}
static void test_init(void)
{
uint64_t barsize;
dev = get_device();
dev_base = qpci_iomap(dev, 0, &barsize);
g_assert(dev_base != NULL);
qpci_device_enable(dev);
test_timer();
}
int main(int argc, char **argv)
{
int ret;
g_test_init(&argc, &argv, NULL);
qtest_add_func("/rtl8139/nop", nop);
qtest_add_func("/rtl8139/timer", test_init);
qtest_start("-device rtl8139");
ret = g_test_run();
qtest_end();
return ret;
}
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