diff options
Diffstat (limited to 'test/test/test_interrupts.c')
| -rw-r--r-- | test/test/test_interrupts.c | 552 |
1 files changed, 552 insertions, 0 deletions
diff --git a/test/test/test_interrupts.c b/test/test/test_interrupts.c new file mode 100644 index 00000000..e0229e5e --- /dev/null +++ b/test/test/test_interrupts.c @@ -0,0 +1,552 @@ +/*- + * 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 100 /* 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(void *arg) +{ + struct rte_intr_handle *intr_handle = 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(void *arg) +{ + struct rte_intr_handle *intr_handle = 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, &test_intr_handle) < 0) { + printf("fail to register callback\n"); + return -1; + } + + if (test_interrupt_trigger_interrupt() < 0) + return -1; + + /* check flag */ + 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, &test_intr_handle) < 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, &test_intr_handle) == 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, &test_intr_handle) == 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, &test_intr_handle) > 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, &test_intr_handle) < 0) { + printf("it fails to register test_interrupt_callback\n"); + goto out; + } + if (rte_intr_callback_register(&test_intr_handle, + test_interrupt_callback_1, &test_intr_handle) < 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, &test_intr_handle) <= 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; +} + +REGISTER_TEST_COMMAND(interrupt_autotest, test_interrupt); |