--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_interrupts.h>
+
+#include "test.h"
+
+#define TEST_INTERRUPT_CHECK_INTERVAL 1000 /* ms */
+
+/* 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{
+ struct {
+ int pipefd[2];
+ };
+ struct {
+ int readfd;
+ int writefd;
+ };
+};
+
+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)
+{
+ if (!intr_handle || intr_handle->fd < 0)
+ return -1;
+
+ 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_VALID].fd = pfds.readfd;
+ 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_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)
+{
+ close(pfds.pipefd[0]);
+ close(pfds.pipefd[1]);
+
+ return 0;
+}
+
+/**
+ * Write the pipe to simulate an interrupt.
+ */
+static int
+test_interrupt_trigger_interrupt(void)
+{
+ if (write(pfds.writefd, "1", 1) < 0)
+ return -1;
+
+ 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)
+{
+ if (!intr_handle_l || !intr_handle_r)
+ return -1;
+
+ if (intr_handle_l->fd != intr_handle_r->fd ||
+ intr_handle_l->type != intr_handle_r->type)
+ return -1;
+
+ return 0;
+}
+
+#else
+/* to be implemented for bsd later */
+static inline int
+test_interrupt_handle_sanity_check(struct rte_intr_handle *intr_handle)
+{
+ RTE_SET_USED(intr_handle);
+
+ return 0;
+}
+
+static int
+test_interrupt_init(void)
+{
+ return 0;
+}
+
+static int
+test_interrupt_deinit(void)
+{
+ return 0;
+}
+
+static int
+test_interrupt_trigger_interrupt(void)
+{
+ return 0;
+}
+
+static int
+test_interrupt_handle_compare(struct rte_intr_handle *intr_handle_l,
+ struct rte_intr_handle *intr_handle_r)
+{
+ (void)intr_handle_l;
+ (void)intr_handle_r;
+
+ return 0;
+}
+#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;
+ return;
+ }
+
+ if (rte_intr_callback_unregister(intr_handle,
+ test_interrupt_callback, arg) >= 0) {
+ printf("%s: unexpectedly able to unregister itself\n",
+ __func__);
+ flag = -1;
+ return;
+ }
+
+ if (test_interrupt_handle_compare(intr_handle,
+ &(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)
+{
+ if (test_interrupt_handle_sanity_check(intr_handle) < 0) {
+ printf("null or invalid intr_handle for %s\n", __func__);
+ flag = -1;
+ return;
+ }
+}
+
+/**
+ * Tests for rte_intr_enable().
+ */
+static int
+test_interrupt_enable(void)
+{
+ struct rte_intr_handle test_intr_handle;
+
+ /* check with null intr_handle */
+ if (rte_intr_enable(NULL) == 0) {
+ printf("unexpectedly enable null intr_handle successfully\n");
+ return -1;
+ }
+
+ /* check with invalid intr_handle */
+ test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_INVALID];
+ if (rte_intr_enable(&test_intr_handle) == 0) {
+ printf("unexpectedly enable invalid intr_handle "
+ "successfully\n");
+ return -1;
+ }
+
+ /* check with valid intr_handle */
+ test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID];
+ if (rte_intr_enable(&test_intr_handle) == 0) {
+ printf("unexpectedly enable a specific intr_handle "
+ "successfully\n");
+ return -1;
+ }
+
+ /* 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");
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * Tests for rte_intr_disable().
+ */
+static int
+test_interrupt_disable(void)
+{
+ struct rte_intr_handle test_intr_handle;
+
+ /* check with null intr_handle */
+ if (rte_intr_disable(NULL) == 0) {
+ printf("unexpectedly disable null intr_handle "
+ "successfully\n");
+ return -1;
+ }
+
+ /* check with invalid intr_handle */
+ test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_INVALID];
+ if (rte_intr_disable(&test_intr_handle) == 0) {
+ printf("unexpectedly disable invalid intr_handle "
+ "successfully\n");
+ return -1;
+ }
+
+ /* check with valid intr_handle */
+ test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID];
+ if (rte_intr_disable(&test_intr_handle) == 0) {
+ printf("unexpectedly disable a specific intr_handle "
+ "successfully\n");
+ return -1;
+ }
+
+ /* 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");
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * 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;
+ struct rte_intr_handle test_intr_handle;
+
+ flag = 0;
+ 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");
+ 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.
+ */
+static int
+test_interrupt(void)
+{
+ int ret = -1;
+ struct rte_intr_handle test_intr_handle;
+
+ 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;
+ }
+
+ 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;
+ }
+
+ 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) {
+ printf("unexpectedly register successfully with null "
+ "intr_handle\n");
+ goto out;
+ }
+
+ /* check if it will fail to register cb with invalid intr_handle */
+ test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_INVALID];
+ if (rte_intr_callback_register(&test_intr_handle,
+ test_interrupt_callback, NULL) == 0) {
+ printf("unexpectedly register successfully with invalid "
+ "intr_handle\n");
+ goto out;
+ }
+
+ /* check if it will fail to register without callback */
+ test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID];
+ if (rte_intr_callback_register(&test_intr_handle, NULL, NULL) == 0) {
+ printf("unexpectedly register successfully with "
+ "null callback\n");
+ goto out;
+ }
+
+ /* check if it will fail to unregister cb with intr_handle = NULL */
+ if (rte_intr_callback_unregister(NULL,
+ test_interrupt_callback, NULL) > 0) {
+ printf("unexpectedly unregister successfully with "
+ "null intr_handle\n");
+ goto out;
+ }
+
+ /* check if it will fail to unregister cb with invalid intr_handle */
+ test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_INVALID];
+ if (rte_intr_callback_unregister(&test_intr_handle,
+ test_interrupt_callback, NULL) > 0) {
+ printf("unexpectedly unregister successfully with "
+ "invalid intr_handle\n");
+ goto out;
+ }
+
+ /* check if it is ok to register the same intr_handle twice */
+ test_intr_handle = intr_handles[TEST_INTERRUPT_HANDLE_VALID];
+ if (rte_intr_callback_register(&test_intr_handle,
+ test_interrupt_callback, NULL) < 0) {
+ printf("it fails to register test_interrupt_callback\n");
+ goto out;
+ }
+ if (rte_intr_callback_register(&test_intr_handle,
+ test_interrupt_callback_1, NULL) < 0) {
+ printf("it fails to register test_interrupt_callback_1\n");
+ goto out;
+ }
+ /* 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");
+ goto out;
+ }
+ if (rte_intr_callback_unregister(&test_intr_handle,
+ test_interrupt_callback, NULL) <= 0) {
+ printf("it fails to unregister test_interrupt_callback\n");
+ goto out;
+ }
+ if (rte_intr_callback_unregister(&test_intr_handle,
+ test_interrupt_callback_1, (void *)-1) <= 0) {
+ printf("it fails to unregister test_interrupt_callback_1 "
+ "for all\n");
+ goto out;
+ }
+ rte_delay_ms(TEST_INTERRUPT_CHECK_INTERVAL);
+
+ printf("start interrupt enable/disable test\n");
+ /* check interrupt enable/disable functions */
+ 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) {
+ 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();
+
+ return ret;
+}
+
+static struct test_command interrupt_cmd = {
+ .command = "interrupt_autotest",
+ .callback = test_interrupt,
+};
+REGISTER_TEST_COMMAND(interrupt_cmd);
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