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[92.243.14.124]) by mx.google.com with ESMTP id j29-v6si8348188ejo.195.2018.11.21.19.32.15; Wed, 21 Nov 2018 19:32:15 -0800 (PST) Received-SPF: pass (google.com: domain of dev-bounces@dpdk.org designates 92.243.14.124 as permitted sender) client-ip=92.243.14.124; Authentication-Results: mx.google.com; spf=pass (google.com: domain of dev-bounces@dpdk.org designates 92.243.14.124 as permitted sender) smtp.mailfrom=dev-bounces@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id BA20E1B216; Thu, 22 Nov 2018 04:31:57 +0100 (CET) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by dpdk.org (Postfix) with ESMTP id ADBDD1B1FC for ; Thu, 22 Nov 2018 04:31:55 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 282173617; Wed, 21 Nov 2018 19:31:55 -0800 (PST) Received: from qc2400f-1.austin.arm.com (qc2400f-1.austin.arm.com [10.118.14.34]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C52DB3F5CF; Wed, 21 Nov 2018 19:31:54 -0800 (PST) From: Honnappa Nagarahalli To: dev@dpdk.org Cc: nd@arm.com, honnappa.nagarahalli@arm.com, dharmik.thakkar@arm.com, malvika.gupta@arm.com, gavin.hu@arm.com Date: Wed, 21 Nov 2018 21:30:55 -0600 Message-Id: <20181122033055.3431-4-honnappa.nagarahalli@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181122033055.3431-1-honnappa.nagarahalli@arm.com> References: <20181122033055.3431-1-honnappa.nagarahalli@arm.com> Subject: [dpdk-dev] [RFC 3/3] test/tqs: Add API and functional tests X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Dharmik Thakkar Add API positive/negative test cases and functional tests. Signed-off-by: Malvika Gupta Signed-off-by: Dharmik Thakkar Signed-off-by: Honnappa Nagarahalli Reviewed-by: Gavin Hu --- test/test/Makefile | 2 + test/test/autotest_data.py | 6 + test/test/meson.build | 5 +- test/test/test_tqs.c | 540 +++++++++++++++++++++++++++++++++++++ 4 files changed, 552 insertions(+), 1 deletion(-) create mode 100644 test/test/test_tqs.c -- 2.17.1 diff --git a/test/test/Makefile b/test/test/Makefile index ab4fec34a..7a07039e7 100644 --- a/test/test/Makefile +++ b/test/test/Makefile @@ -207,6 +207,8 @@ SRCS-$(CONFIG_RTE_LIBRTE_KVARGS) += test_kvargs.c SRCS-$(CONFIG_RTE_LIBRTE_BPF) += test_bpf.c +SRCS-$(CONFIG_RTE_LIBRTE_TQS) += test_tqs.c + CFLAGS += -DALLOW_EXPERIMENTAL_API CFLAGS += -O3 diff --git a/test/test/autotest_data.py b/test/test/autotest_data.py index 0fb7866db..e676757cd 100644 --- a/test/test/autotest_data.py +++ b/test/test/autotest_data.py @@ -676,6 +676,12 @@ "Func": default_autotest, "Report": None, }, + { + "Name": "Thread Quiescent State autotest", + "Command": "tqs_autotest", + "Func": default_autotest, + "Report": None, + }, # # Please always make sure that ring_perf is the last test! # diff --git a/test/test/meson.build b/test/test/meson.build index 554e9945f..b80a449ad 100644 --- a/test/test/meson.build +++ b/test/test/meson.build @@ -100,6 +100,7 @@ test_sources = files('commands.c', 'test_timer.c', 'test_timer_perf.c', 'test_timer_racecond.c', + 'tet_tqs.c', 'test_version.c', 'virtual_pmd.c' ) @@ -122,7 +123,8 @@ test_deps = ['acl', 'port', 'reorder', 'ring', - 'timer' + 'timer', + 'tqs' ] test_names = [ @@ -228,6 +230,7 @@ test_names = [ 'timer_autotest', 'timer_perf__autotest', 'timer_racecond_autotest', + 'tqs_autotest', 'user_delay_us', 'version_autotest', ] diff --git a/test/test/test_tqs.c b/test/test/test_tqs.c new file mode 100644 index 000000000..8633a80a6 --- /dev/null +++ b/test/test/test_tqs.c @@ -0,0 +1,540 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright (c) 2018 Arm Limited + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "test.h" + +/* Check condition and return an error if true. */ +#define TQS_RETURN_IF_ERROR(tqs, cond, str, ...) do { \ + if (cond) { \ + printf("ERROR file %s, line %d: " str "\n", __FILE__, \ + __LINE__, ##__VA_ARGS__); \ + if (tqs) \ + rte_tqs_free(tqs); \ + return -1; \ + } \ +} while (0) + +#define RTE_TQS_MAX_LCORE 64 +uint16_t enabled_core_ids[RTE_TQS_MAX_LCORE]; +uint64_t core_mask; +uint32_t sw_token; +uint16_t num_1qs = 1; /* Number of quiescent states = 1 */ + +struct node { + int data; + struct node *next; +}; + +struct node *head = NULL, *lastNode; + +static inline int +get_enabled_cores_mask(void) +{ + uint32_t i; + uint16_t core_id; + uint32_t max_cores = rte_lcore_count(); + + if (max_cores > RTE_TQS_MAX_LCORE) { + printf("Number of cores exceed %d\n", RTE_TQS_MAX_LCORE); + return -1; + } + + core_id = 0; + core_mask = 0; + i = 0; + RTE_LCORE_FOREACH_SLAVE(core_id) { + enabled_core_ids[i] = core_id; + i++; + core_mask |= 1UL << core_id; + } + + return 0; +} + +/* + * rte_tqs_alloc: Allocate a TQS variable + */ +static int +test_tqs_alloc(void) +{ + const char name32[] = "xyzxyzxyzxyzxyzxyzxyzxyzxyzx123"; + const char name33[] = "xyzxyizxyzxyzxyzxyzxyzxyzxyzxyzxyz"; + const char name3[] = "xyz"; + struct rte_tqs *t; + + printf("Test rte_tqs_alloc()\n"); + + t = rte_tqs_alloc(NULL, SOCKET_ID_ANY, core_mask); + TQS_RETURN_IF_ERROR(t, (t != NULL), "NULL TQS variable"); + + t = rte_tqs_alloc(name3, SOCKET_ID_ANY, core_mask); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Variable name < %d", + RTE_TQS_NAMESIZE); + rte_tqs_free(t); + + t = rte_tqs_alloc(name32, SOCKET_ID_ANY, core_mask); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Variable name < %d", + RTE_TQS_NAMESIZE); + rte_tqs_free(t); + + t = rte_tqs_alloc(name33, SOCKET_ID_ANY, core_mask); + TQS_RETURN_IF_ERROR(t, (t != NULL), "Variable name > %d", + RTE_TQS_NAMESIZE); + + t = rte_tqs_alloc(name3, 0, core_mask); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Valid socket ID"); + rte_tqs_free(t); + + t = rte_tqs_alloc(name3, 10000, core_mask); + TQS_RETURN_IF_ERROR(t, (t != NULL), "Invalid socket ID"); + + t = rte_tqs_alloc(name3, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t, (t == NULL), "0 core mask"); + rte_tqs_free(t); + + return 0; +} + +/* + * rte_tqs_register_lcore: Register threads + */ +static int +test_tqs_register_lcore(void) +{ + struct rte_tqs *t; + const char *name = "TQS"; + int ret; + + printf("\nTest rte_tqs_register_lcore()\n"); + + t = rte_tqs_alloc(name, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Failed to alloc TQS variable"); + + ret = rte_tqs_register_lcore(t, enabled_core_ids[0]); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), + "lcore_id < RTE_TQS_MAX_LCORE"); + rte_tqs_free(t); + return 0; +} + +/* + * rte_tqs_unregister_lcore: Unregister threads + */ +static int +test_tqs_unregister_lcore(void) +{ + struct rte_tqs *t; + const char *name = "TQS"; + int i, ret; + + printf("\nTest rte_tqs_unregister_lcore()\n"); + + t = rte_tqs_alloc(name, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Failed to alloc TQS variable"); + + ret = rte_tqs_register_lcore(t, enabled_core_ids[0]); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), "Register lcore failed"); + + /* Find first disabled core */ + for (i = 0; i < RTE_TQS_MAX_LCORE; i++) { + if (enabled_core_ids[i] == 0) + break; + } + ret = rte_tqs_unregister_lcore(t, i); + TQS_RETURN_IF_ERROR(t, (ret != 0), "lcore disabled"); + + ret = rte_tqs_unregister_lcore(t, enabled_core_ids[0]); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), "Valid lcore_id"); + + rte_tqs_free(t); + return 0; +} + +/* + * rte_tqs_start: Trigger reader threads to count the number of times they enter + * the quiescent state + */ +static int +test_tqs_start(void) +{ + struct rte_tqs *t; + const char *name = "TQS"; + uint32_t token; + int i, ret; + + printf("\nTest rte_tqs_start()\n"); + + t = rte_tqs_alloc(name, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Failed to alloc TQS variable"); + + for (i = 0; i < 3; i++) { + ret = rte_tqs_register_lcore(t, enabled_core_ids[i]); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), + "Register lcore failed"); + } + + ret = rte_tqs_start(t, 1, &token); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), "1 quiescent states"); + + rte_tqs_free(t); + return 0; +} + +/* + * rte_tqs_check: Check if all reader threads have completed entering the + * quiescent state 'n' times + */ +static int +test_tqs_check(void) +{ + + struct rte_tqs *t; + const char *name = "TQS"; + int i, ret; + uint32_t token; + + printf("\nTest rte_tqs_check()\n"); + + t = rte_tqs_alloc(name, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Failed to alloc TQS variable"); + + ret = rte_tqs_start(t, 1, &token); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), "TQS Start failed"); + + ret = rte_tqs_check(t, 0, true); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), "Token = 0"); + + ret = rte_tqs_check(t, token, true); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), "Blocking TQS check"); + + for (i = 0; i < 3; i++) { + ret = rte_tqs_register_lcore(t, enabled_core_ids[i]); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), + "Register lcore failed"); + } + + ret = rte_tqs_check(t, token, false); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), "Non-blocking TQS check"); + + rte_tqs_free(t); + return 0; +} + +/* + * rte_tqs_lookup: Lookup a TQS variable by its name + */ +static int +test_tqs_lookup(void) +{ + struct rte_tqs *t, *ret; + const char *name1 = "TQS"; + const char *name2 = "NO_TQS"; + + printf("\nTest rte_tqs_lookup()\n"); + + t = rte_tqs_alloc(name1, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Failed to alloc TQS variable"); + + ret = rte_tqs_lookup(name1); + TQS_RETURN_IF_ERROR(t, (ret != t), "Allocated TQS variable name"); + + ret = rte_tqs_lookup(name2); + TQS_RETURN_IF_ERROR(t, (ret != NULL), "Unallocated TQS variable name"); + + rte_tqs_free(t); + return 0; +} + +/* + * rte_tqs_list_dump: Dump the status of all TQS variables to a file + */ +static int +test_tqs_list_dump(void) +{ + struct rte_tqs *t1, *t2; + const char name1[] = "TQS_1"; + const char name2[] = "TQS_2"; + int i, ret; + + printf("\nTest rte_tqs_list_dump()\n"); + + /* File pointer NULL */ + rte_tqs_list_dump(NULL); + + /* Dump an empty list */ + rte_tqs_list_dump(stdout); + + t1 = rte_tqs_alloc(name1, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t1, (t1 == NULL), "Failed to alloc TQS variable"); + + /* Dump a list with TQS variable that has no readers */ + rte_tqs_list_dump(stdout); + + t2 = rte_tqs_alloc(name2, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t2, (t2 == NULL), "Failed to alloc TQS variable"); + + ret = rte_tqs_register_lcore(t1, enabled_core_ids[0]); + if (ret != 0) { + printf("ERROR file %s, line %d: Failed to register lcore\n", + __FILE__, __LINE__); + return -1; + } + + for (i = 1; i < 3; i++) { + ret = rte_tqs_register_lcore(t2, enabled_core_ids[i]); + if (ret != 0) { + printf("ERROR file %s, line %d: Failed to register lcore\n", + __FILE__, __LINE__); + return -1; + } + } + + rte_tqs_list_dump(stdout); + + rte_tqs_free(t1); + rte_tqs_free(t2); + + return 0; +} + +/* + * rte_tqs_dump: Dump status of a single TQS variable to a file + */ +static int +test_tqs_dump(void) +{ + struct rte_tqs *t1, *t2; + const char name1[] = "TQS_1"; + const char name2[] = "TQS_2"; + int i, ret; + + printf("\nTest rte_tqs_dump()\n"); + + /* NULL TQS variable */ + rte_tqs_dump(stdout, NULL); + + t1 = rte_tqs_alloc(name1, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t1, (t1 == NULL), "Failed to alloc TQS variable"); + + /* NULL file pointer */ + rte_tqs_dump(NULL, t1); + + /* TQS variable with 0 core mask */ + rte_tqs_dump(stdout, t1); + + t2 = rte_tqs_alloc(name2, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t2, (t2 == NULL), "Failed to alloc TQS variable"); + + ret = rte_tqs_register_lcore(t1, enabled_core_ids[0]); + if (ret != 0) { + printf("ERROR file %s, line %d: Failed to register lcore\n", + __FILE__, __LINE__); + return -1; + } + + for (i = 1; i < 3; i++) { + ret = rte_tqs_register_lcore(t2, enabled_core_ids[i]); + if (ret != 0) { + printf("ERROR file %s, line %d: Failed to register lcore\n", + __FILE__, __LINE__); + return -1; + } + } + + rte_tqs_dump(stdout, t1); + rte_tqs_dump(stdout, t2); + + return 0; +} + +struct rte_hash *handle; +static uint32_t *keys; +#define TOTAL_ENTRY (1 * 8) +#define COUNTER_VALUE 4096 +uint32_t *hash_data[TOTAL_ENTRY]; +uint8_t writer_done; +static int + +test_tqs_reader(__attribute__((unused)) void *arg) +{ + struct rte_tqs *t; + int i, ret; + uint32_t lcore_id = rte_lcore_id(); + + t = rte_tqs_lookup("TQS"); + TQS_RETURN_IF_ERROR(t, (t == NULL), "TQS variable lookup failed"); + + do { + for (i = 0; i < TOTAL_ENTRY; i++) { + uint32_t *pdata; + ret = rte_hash_lookup_data(handle, keys+i, + (void **)&pdata); + if (ret != -ENOENT) + while (*pdata < COUNTER_VALUE) + ++*pdata; + } + + /* Update quiescent state counter */ + rte_tqs_update(t, lcore_id); + } while (!writer_done); + + return 0; +} + +static int +init_hash(void) +{ + int i, ret; + struct rte_hash_parameters hash_params = { + .entries = TOTAL_ENTRY, + .key_len = sizeof(uint32_t), + .hash_func_init_val = 0, + .socket_id = rte_socket_id(), + .hash_func = rte_hash_crc, + .extra_flag = + RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF, + .name = "tests", + }; + + handle = rte_hash_create(&hash_params); + TQS_RETURN_IF_ERROR(NULL, (handle == NULL), "Hash create Failed"); + + for (i = 0; i < TOTAL_ENTRY; i++) { + hash_data[i] = rte_zmalloc(NULL, sizeof(uint32_t), 0); + TQS_RETURN_IF_ERROR(NULL, (hash_data[i] == NULL), "No memory"); + } + keys = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_ENTRY, 0); + TQS_RETURN_IF_ERROR(NULL, (keys == NULL), "No memory"); + + for (i = 0; i < TOTAL_ENTRY; i++) + keys[i] = i; + + for (i = 0; i < TOTAL_ENTRY; i++) { + ret = rte_hash_add_key_data(handle, keys + i, + (void *)((uintptr_t)hash_data[i])); + TQS_RETURN_IF_ERROR(NULL, (ret < 0), + "Hash key add Failed #%d\n", i); + } + return 0; +} + +/* + * Single writer, 1 TQS variable, 1 quiescent state + */ +static int +test_tqs_sw_sv_1qs(void) +{ + struct rte_tqs *t; + const char *name = "TQS"; + static uint32_t token; + int i, ret; + int32_t pos; + writer_done = 0; + + printf("\nTest Single writer, 1 TQS variable, pass 1 quiescent state\n"); + + /* TQS variable is allocated */ + t = rte_tqs_alloc(name, SOCKET_ID_ANY, 0); + TQS_RETURN_IF_ERROR(t, (t == NULL), "Failed to alloc TQS variable"); + + /* Register worker threads on 4 cores */ + for (i = 0; i < 4; i++) { + ret = rte_tqs_register_lcore(t, enabled_core_ids[i]); + TQS_RETURN_IF_ERROR(t, (ret == -EINVAL), + "Register lcore failed"); + } + + /* Shared data structure created */ + ret = init_hash(); + TQS_RETURN_IF_ERROR(t, (ret != 0), "Hash init failed"); + + /* Reader threads are launched */ + for (i = 0; i < 4; i++) + rte_eal_remote_launch(test_tqs_reader, NULL, + enabled_core_ids[i]); + + for (i = 0; i < TOTAL_ENTRY; i++) { + /* Delete elements from the shared data structure */ + pos = rte_hash_del_key(handle, keys + i); + TQS_RETURN_IF_ERROR(t, (pos < 0), "Delete key failed #%d", + keys[i]); + /* Start the quiescent state query process */ + ret = rte_tqs_start(t, num_1qs, &token); + TQS_RETURN_IF_ERROR(t, (ret != 0), "TQS Start Failed"); + + /* Check the quiescent state status */ + rte_tqs_check(t, token, true); + TQS_RETURN_IF_ERROR(t, (*hash_data[i] != COUNTER_VALUE), + "Reader did not complete %d", + *hash_data[i]); + + rte_hash_free_key_with_position(handle, pos); + TQS_RETURN_IF_ERROR(t, (ret < 0), + "Failed to free the key #%d", keys[i]); + rte_free(hash_data[i]); + } + writer_done = 1; + /* Wait until all readers have exited */ + rte_eal_mp_wait_lcore(); + + /* Free TQS variable */ + rte_tqs_free(t); + rte_hash_free(handle); + rte_free(keys); + + return 0; +} + +static int +test_tqs_main(void) +{ + if (get_enabled_cores_mask() != 0) + return -1; + + /* Error-checking test cases */ + if (test_tqs_alloc() < 0) + goto test_fail; + + if (test_tqs_register_lcore() < 0) + goto test_fail; + + if (test_tqs_unregister_lcore() < 0) + goto test_fail; + + if (test_tqs_start() < 0) + goto test_fail; + + if (test_tqs_check() < 0) + goto test_fail; + + if (test_tqs_lookup() < 0) + goto test_fail; + + if (test_tqs_list_dump() < 0) + goto test_fail; + + if (test_tqs_dump() < 0) + goto test_fail; + + + /* Functional test cases */ + if (test_tqs_sw_sv_1qs() < 0) + goto test_fail; + + printf("\n"); + return 0; + + test_fail: + return -1; +} + +REGISTER_TEST_COMMAND(tqs_autotest, test_tqs_main);