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app/test: update interrupts test
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Signed-off-by: Intel
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Intel authored and Thomas Monjalon committed Oct 9, 2013
1 parent 6504308 commit f1a6c22
Showing 1 changed file with 161 additions and 43 deletions.
204 changes: 161 additions & 43 deletions app/test/test_interrupts.c
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Original file line number Diff line number Diff line change
Expand Up @@ -45,15 +45,21 @@

#define TEST_INTERRUPT_CHECK_INTERVAL 1000 /* ms */

enum test_interrupt_handl_type {
/* predefined interrupt handle types */
enum test_interrupt_handle_type {
TEST_INTERRUPT_HANDLE_INVALID,
TEST_INTERRUPT_HANDLE_VALID,
TEST_INTERRUPT_HANDLE_VALID_UIO,
TEST_INTERRUPT_HANDLE_VALID_ALARM,
TEST_INTERRUPT_HANDLE_CASE1,
TEST_INTERRUPT_HANDLE_MAX
};

/* flag of if callback is called */
static volatile int flag;
static struct rte_intr_handle intr_handles[TEST_INTERRUPT_HANDLE_MAX];
static enum test_interrupt_handle_type test_intr_type =
TEST_INTERRUPT_HANDLE_MAX;

#ifdef RTE_EXEC_ENV_LINUXAPP
union intr_pipefds{
Expand All @@ -68,6 +74,9 @@ union intr_pipefds{

static union intr_pipefds pfds;

/**
* Check if the interrupt handle is valid.
*/
static inline int
test_interrupt_handle_sanity_check(struct rte_intr_handle *intr_handle)
{
Expand All @@ -77,24 +86,40 @@ test_interrupt_handle_sanity_check(struct rte_intr_handle *intr_handle)
return 0;
}

/**
* Initialization for interrupt test.
*/
static int
test_interrupt_init(void)
{
if (pipe(pfds.pipefd) < 0)
return -1;

intr_handles[TEST_INTERRUPT_HANDLE_INVALID].fd = -1;
intr_handles[TEST_INTERRUPT_HANDLE_INVALID].type = RTE_INTR_HANDLE_UNKNOWN;
intr_handles[TEST_INTERRUPT_HANDLE_INVALID].type =
RTE_INTR_HANDLE_UNKNOWN;

intr_handles[TEST_INTERRUPT_HANDLE_VALID].fd = pfds.readfd;
intr_handles[TEST_INTERRUPT_HANDLE_VALID].type = RTE_INTR_HANDLE_UNKNOWN;
intr_handles[TEST_INTERRUPT_HANDLE_VALID].type =
RTE_INTR_HANDLE_UNKNOWN;

intr_handles[TEST_INTERRUPT_HANDLE_VALID_UIO].fd = pfds.readfd;
intr_handles[TEST_INTERRUPT_HANDLE_VALID_UIO].type =
RTE_INTR_HANDLE_UIO;

intr_handles[TEST_INTERRUPT_HANDLE_CASE1].fd = pfds.readfd;
intr_handles[TEST_INTERRUPT_HANDLE_CASE1].type = RTE_INTR_HANDLE_ALARM;
intr_handles[TEST_INTERRUPT_HANDLE_VALID_ALARM].fd = pfds.readfd;
intr_handles[TEST_INTERRUPT_HANDLE_VALID_ALARM].type =
RTE_INTR_HANDLE_ALARM;

intr_handles[TEST_INTERRUPT_HANDLE_CASE1].fd = pfds.writefd;
intr_handles[TEST_INTERRUPT_HANDLE_CASE1].type = RTE_INTR_HANDLE_UIO;

return 0;
}

/**
* Deinitialization for interrupt test.
*/
static int
test_interrupt_deinit(void)
{
Expand All @@ -104,6 +129,9 @@ test_interrupt_deinit(void)
return 0;
}

/**
* Write the pipe to simulate an interrupt.
*/
static int
test_interrupt_trigger_interrupt(void)
{
Expand All @@ -113,6 +141,9 @@ test_interrupt_trigger_interrupt(void)
return 0;
}

/**
* Check if two interrupt handles are the same.
*/
static int
test_interrupt_handle_compare(struct rte_intr_handle *intr_handle_l,
struct rte_intr_handle *intr_handle_r)
Expand Down Expand Up @@ -166,9 +197,18 @@ test_interrupt_handle_compare(struct rte_intr_handle *intr_handle_l,
}
#endif /* RTE_EXEC_ENV_LINUXAPP */

/**
* Callback for the test interrupt.
*/
static void
test_interrupt_callback(struct rte_intr_handle *intr_handle, void *arg)
{
if (test_intr_type >= TEST_INTERRUPT_HANDLE_MAX) {
printf("invalid interrupt type\n");
flag = -1;
return;
}

if (test_interrupt_handle_sanity_check(intr_handle) < 0) {
printf("null or invalid intr_handle for %s\n", __func__);
flag = -1;
Expand All @@ -184,11 +224,13 @@ test_interrupt_callback(struct rte_intr_handle *intr_handle, void *arg)
}

if (test_interrupt_handle_compare(intr_handle,
&(intr_handles[TEST_INTERRUPT_HANDLE_VALID])) == 0) {
&(intr_handles[test_intr_type])) == 0)
flag = 1;
}
}

/**
* Callback for the test interrupt.
*/
static void
test_interrupt_callback_1(struct rte_intr_handle *intr_handle,
__attribute__((unused)) void *arg)
Expand All @@ -200,6 +242,9 @@ test_interrupt_callback_1(struct rte_intr_handle *intr_handle,
}
}

/**
* Tests for rte_intr_enable().
*/
static int
test_interrupt_enable(void)
{
Expand Down Expand Up @@ -228,7 +273,21 @@ test_interrupt_enable(void)
}

/* check with specific valid intr_handle */
test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID_ALARM];
if (rte_intr_enable(&test_intr_handle) == 0) {
printf("unexpectedly enable a specific intr_handle "
"successfully\n");
return -1;
}

/* check with valid handler and its type */
test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_CASE1];
if (rte_intr_enable(&test_intr_handle) < 0) {
printf("fail to enable interrupt on a simulated handler\n");
return -1;
}

test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID_UIO];
if (rte_intr_enable(&test_intr_handle) == 0) {
printf("unexpectedly enable a specific intr_handle "
"successfully\n");
Expand All @@ -238,6 +297,9 @@ test_interrupt_enable(void)
return 0;
}

/**
* Tests for rte_intr_disable().
*/
static int
test_interrupt_disable(void)
{
Expand Down Expand Up @@ -267,7 +329,21 @@ test_interrupt_disable(void)
}

/* check with specific valid intr_handle */
test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID_ALARM];
if (rte_intr_disable(&test_intr_handle) == 0) {
printf("unexpectedly disable a specific intr_handle "
"successfully\n");
return -1;
}

/* check with valid handler and its type */
test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_CASE1];
if (rte_intr_disable(&test_intr_handle) < 0) {
printf("fail to disable interrupt on a simulated handler\n");
return -1;
}

test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID_UIO];
if (rte_intr_disable(&test_intr_handle) == 0) {
printf("unexpectedly disable a specific intr_handle "
"successfully\n");
Expand All @@ -277,60 +353,85 @@ test_interrupt_disable(void)
return 0;
}

int
test_interrupt(void)
/**
* Check the full path of a specified type of interrupt simulated.
*/
static int
test_interrupt_full_path_check(enum test_interrupt_handle_type intr_type)
{
int count, ret;
int count;
struct rte_intr_handle test_intr_handle;

if (test_interrupt_init() < 0) {
printf("fail to do test init\n");
return -1;
}

printf("check if callback registered can be called\n");

ret = -1;

/* check if callback registered can be called */
flag = 0;
test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID];
test_intr_handle = intr_handles[intr_type];
test_intr_type = intr_type;
if (rte_intr_callback_register(&test_intr_handle,
test_interrupt_callback, NULL) < 0) {
printf("fail to register callback\n");
goto out;
}
/* trigger an interrupt and then check if the callback can be called */
if (test_interrupt_trigger_interrupt() < 0) {
printf("fail to trigger an interrupt\n");
goto out;
return -1;
}

if (test_interrupt_trigger_interrupt() < 0)
return -1;

/* check flag in 3 seconds */
for (count = 0; flag == 0 && count < 3; count++)
rte_delay_ms(TEST_INTERRUPT_CHECK_INTERVAL);

rte_delay_ms(TEST_INTERRUPT_CHECK_INTERVAL);
if (rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback, NULL) < 0)
return -1;

if (flag == 0) {
printf("callback has not been called\n");
return -1;
} else if (flag < 0) {
printf("it has internal error in callback\n");
return -1;
}

return 0;
}

/**
* Main function of testing interrupt.
*/
int
test_interrupt(void)
{
int ret = -1;
struct rte_intr_handle test_intr_handle;

if ((ret = rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback, NULL)) < 0) {
printf("rte_intr_callback_unregister() failed with error "
"code: %d\n", ret);
if (test_interrupt_init() < 0) {
printf("fail to initialize for testing interrupt\n");
return -1;
}

printf("Check unknown valid interrupt full path\n");
if (test_interrupt_full_path_check(TEST_INTERRUPT_HANDLE_VALID) < 0) {
printf("failure occured during checking unknown valid "
"interrupt full path\n");
goto out;
}

ret = -1;

if (flag == 0) {
printf("registered callback has not been called\n");
printf("Check valid UIO interrupt full path\n");
if (test_interrupt_full_path_check(TEST_INTERRUPT_HANDLE_VALID_UIO)
< 0) {
printf("failure occured during checking valid UIO interrupt "
"full path\n");
goto out;
} else if (flag < 0) {
printf("registered callback failed\n");
ret = flag;
}

printf("Check valid alarm interrupt full path\n");
if (test_interrupt_full_path_check(TEST_INTERRUPT_HANDLE_VALID_ALARM)
< 0) {
printf("failure occured during checking valid alarm "
"interrupt full path\n");
goto out;
}

printf("start register/unregister test\n");

/* check if it will fail to register cb with intr_handle = NULL */
if (rte_intr_callback_register(NULL, test_interrupt_callback,
NULL) == 0) {
Expand Down Expand Up @@ -388,7 +489,8 @@ test_interrupt(void)
/* check if it will fail to unregister with invalid parameter */
if (rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback, (void *)0xff) != 0) {
printf("unexpectedly unregisters successfully with invalid arg\n");
printf("unexpectedly unregisters successfully with "
"invalid arg\n");
goto out;
}
if (rte_intr_callback_unregister(&test_intr_handle,
Expand All @@ -405,26 +507,42 @@ test_interrupt(void)
rte_delay_ms(TEST_INTERRUPT_CHECK_INTERVAL);

printf("start interrupt enable/disable test\n");

/* check interrupt enable/disable functions */
if (test_interrupt_enable() < 0)
if (test_interrupt_enable() < 0) {
printf("fail to check interrupt enabling\n");
goto out;
}
rte_delay_ms(TEST_INTERRUPT_CHECK_INTERVAL);

if (test_interrupt_disable() < 0)
if (test_interrupt_disable() < 0) {
printf("fail to check interrupt disabling\n");
goto out;
}
rte_delay_ms(TEST_INTERRUPT_CHECK_INTERVAL);

ret = 0;

out:
printf("Clearing for interrupt tests\n");
/* clear registered callbacks */
test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID];
rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback, (void *)-1);
rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback_1, (void *)-1);

test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID_UIO];
rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback, (void *)-1);
rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback_1, (void *)-1);

test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID_ALARM];
rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback, (void *)-1);
rte_intr_callback_unregister(&test_intr_handle,
test_interrupt_callback_1, (void *)-1);

rte_delay_ms(2 * TEST_INTERRUPT_CHECK_INTERVAL);
/* deinit */
test_interrupt_deinit();
Expand Down

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