From 7595afa4d30097c1177b69257118d8ad89a539be Mon Sep 17 00:00:00 2001 From: Christian Ehrhardt Date: Tue, 16 May 2017 14:51:32 +0200 Subject: Imported Upstream version 17.05 Change-Id: Id1e419c5a214e4a18739663b91f0f9a549f1fdc6 Signed-off-by: Christian Ehrhardt --- app/test/test_distributor.c | 579 -------------------------------------------- 1 file changed, 579 deletions(-) delete mode 100644 app/test/test_distributor.c (limited to 'app/test/test_distributor.c') diff --git a/app/test/test_distributor.c b/app/test/test_distributor.c deleted file mode 100644 index 85cb8f39..00000000 --- a/app/test/test_distributor.c +++ /dev/null @@ -1,579 +0,0 @@ -/*- - * 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 "test.h" - -#include -#include -#include -#include -#include -#include -#include - -#define ITER_POWER 20 /* log 2 of how many iterations we do when timing. */ -#define BURST 32 -#define BIG_BATCH 1024 - -/* statics - all zero-initialized by default */ -static volatile int quit; /**< general quit variable for all threads */ -static volatile int zero_quit; /**< var for when we just want thr0 to quit*/ -static volatile unsigned worker_idx; - -struct worker_stats { - volatile unsigned handled_packets; -} __rte_cache_aligned; -struct worker_stats worker_stats[RTE_MAX_LCORE]; - -/* returns the total count of the number of packets handled by the worker - * functions given below. - */ -static inline unsigned -total_packet_count(void) -{ - unsigned i, count = 0; - for (i = 0; i < worker_idx; i++) - count += worker_stats[i].handled_packets; - return count; -} - -/* resets the packet counts for a new test */ -static inline void -clear_packet_count(void) -{ - memset(&worker_stats, 0, sizeof(worker_stats)); -} - -/* this is the basic worker function for sanity test - * it does nothing but return packets and count them. - */ -static int -handle_work(void *arg) -{ - struct rte_mbuf *pkt = NULL; - struct rte_distributor *d = arg; - unsigned count = 0; - unsigned id = __sync_fetch_and_add(&worker_idx, 1); - - pkt = rte_distributor_get_pkt(d, id, NULL); - while (!quit) { - worker_stats[id].handled_packets++, count++; - pkt = rte_distributor_get_pkt(d, id, pkt); - } - worker_stats[id].handled_packets++, count++; - rte_distributor_return_pkt(d, id, pkt); - return 0; -} - -/* do basic sanity testing of the distributor. This test tests the following: - * - send 32 packets through distributor with the same tag and ensure they - * all go to the one worker - * - send 32 packets throught the distributor with two different tags and - * verify that they go equally to two different workers. - * - send 32 packets with different tags through the distributors and - * just verify we get all packets back. - * - send 1024 packets through the distributor, gathering the returned packets - * as we go. Then verify that we correctly got all 1024 pointers back again, - * not necessarily in the same order (as different flows). - */ -static int -sanity_test(struct rte_distributor *d, struct rte_mempool *p) -{ - struct rte_mbuf *bufs[BURST]; - unsigned i; - - printf("=== Basic distributor sanity tests ===\n"); - clear_packet_count(); - if (rte_mempool_get_bulk(p, (void *)bufs, BURST) != 0) { - printf("line %d: Error getting mbufs from pool\n", __LINE__); - return -1; - } - - /* now set all hash values in all buffers to zero, so all pkts go to the - * one worker thread */ - for (i = 0; i < BURST; i++) - bufs[i]->hash.usr = 0; - - rte_distributor_process(d, bufs, BURST); - rte_distributor_flush(d); - if (total_packet_count() != BURST) { - printf("Line %d: Error, not all packets flushed. " - "Expected %u, got %u\n", - __LINE__, BURST, total_packet_count()); - return -1; - } - - for (i = 0; i < rte_lcore_count() - 1; i++) - printf("Worker %u handled %u packets\n", i, - worker_stats[i].handled_packets); - printf("Sanity test with all zero hashes done.\n"); - if (worker_stats[0].handled_packets != BURST) - return -1; - - /* pick two flows and check they go correctly */ - if (rte_lcore_count() >= 3) { - clear_packet_count(); - for (i = 0; i < BURST; i++) - bufs[i]->hash.usr = (i & 1) << 8; - - rte_distributor_process(d, bufs, BURST); - rte_distributor_flush(d); - if (total_packet_count() != BURST) { - printf("Line %d: Error, not all packets flushed. " - "Expected %u, got %u\n", - __LINE__, BURST, total_packet_count()); - return -1; - } - - for (i = 0; i < rte_lcore_count() - 1; i++) - printf("Worker %u handled %u packets\n", i, - worker_stats[i].handled_packets); - printf("Sanity test with two hash values done\n"); - - if (worker_stats[0].handled_packets != 16 || - worker_stats[1].handled_packets != 16) - return -1; - } - - /* give a different hash value to each packet, - * so load gets distributed */ - clear_packet_count(); - for (i = 0; i < BURST; i++) - bufs[i]->hash.usr = i; - - rte_distributor_process(d, bufs, BURST); - rte_distributor_flush(d); - if (total_packet_count() != BURST) { - printf("Line %d: Error, not all packets flushed. " - "Expected %u, got %u\n", - __LINE__, BURST, total_packet_count()); - return -1; - } - - for (i = 0; i < rte_lcore_count() - 1; i++) - printf("Worker %u handled %u packets\n", i, - worker_stats[i].handled_packets); - printf("Sanity test with non-zero hashes done\n"); - - rte_mempool_put_bulk(p, (void *)bufs, BURST); - - /* sanity test with BIG_BATCH packets to ensure they all arrived back - * from the returned packets function */ - clear_packet_count(); - struct rte_mbuf *many_bufs[BIG_BATCH], *return_bufs[BIG_BATCH]; - unsigned num_returned = 0; - - /* flush out any remaining packets */ - rte_distributor_flush(d); - rte_distributor_clear_returns(d); - if (rte_mempool_get_bulk(p, (void *)many_bufs, BIG_BATCH) != 0) { - printf("line %d: Error getting mbufs from pool\n", __LINE__); - return -1; - } - for (i = 0; i < BIG_BATCH; i++) - many_bufs[i]->hash.usr = i << 2; - - for (i = 0; i < BIG_BATCH/BURST; i++) { - rte_distributor_process(d, &many_bufs[i*BURST], BURST); - num_returned += rte_distributor_returned_pkts(d, - &return_bufs[num_returned], - BIG_BATCH - num_returned); - } - rte_distributor_flush(d); - num_returned += rte_distributor_returned_pkts(d, - &return_bufs[num_returned], BIG_BATCH - num_returned); - - if (num_returned != BIG_BATCH) { - printf("line %d: Number returned is not the same as " - "number sent\n", __LINE__); - return -1; - } - /* big check - make sure all packets made it back!! */ - for (i = 0; i < BIG_BATCH; i++) { - unsigned j; - struct rte_mbuf *src = many_bufs[i]; - for (j = 0; j < BIG_BATCH; j++) - if (return_bufs[j] == src) - break; - - if (j == BIG_BATCH) { - printf("Error: could not find source packet #%u\n", i); - return -1; - } - } - printf("Sanity test of returned packets done\n"); - - rte_mempool_put_bulk(p, (void *)many_bufs, BIG_BATCH); - - printf("\n"); - return 0; -} - - -/* to test that the distributor does not lose packets, we use this worker - * function which frees mbufs when it gets them. The distributor thread does - * the mbuf allocation. If distributor drops packets we'll eventually run out - * of mbufs. - */ -static int -handle_work_with_free_mbufs(void *arg) -{ - struct rte_mbuf *pkt = NULL; - struct rte_distributor *d = arg; - unsigned count = 0; - unsigned id = __sync_fetch_and_add(&worker_idx, 1); - - pkt = rte_distributor_get_pkt(d, id, NULL); - while (!quit) { - worker_stats[id].handled_packets++, count++; - rte_pktmbuf_free(pkt); - pkt = rte_distributor_get_pkt(d, id, pkt); - } - worker_stats[id].handled_packets++, count++; - rte_distributor_return_pkt(d, id, pkt); - return 0; -} - -/* Perform a sanity test of the distributor with a large number of packets, - * where we allocate a new set of mbufs for each burst. The workers then - * free the mbufs. This ensures that we don't have any packet leaks in the - * library. - */ -static int -sanity_test_with_mbuf_alloc(struct rte_distributor *d, struct rte_mempool *p) -{ - unsigned i; - struct rte_mbuf *bufs[BURST]; - - printf("=== Sanity test with mbuf alloc/free ===\n"); - clear_packet_count(); - for (i = 0; i < ((1<hash.usr = (i+j) << 1; - rte_mbuf_refcnt_set(bufs[j], 1); - } - - rte_distributor_process(d, bufs, BURST); - } - - rte_distributor_flush(d); - if (total_packet_count() < (1<hash.usr = 0; - - rte_distributor_process(d, bufs, BURST); - /* at this point, we will have processed some packets and have a full - * backlog for the other ones at worker 0. - */ - - /* get more buffers to queue up, again setting them to the same flow */ - if (rte_mempool_get_bulk(p, (void *)bufs, BURST) != 0) { - printf("line %d: Error getting mbufs from pool\n", __LINE__); - return -1; - } - for (i = 0; i < BURST; i++) - bufs[i]->hash.usr = 0; - - /* get worker zero to quit */ - zero_quit = 1; - rte_distributor_process(d, bufs, BURST); - - /* flush the distributor */ - rte_distributor_flush(d); - if (total_packet_count() != BURST * 2) { - printf("Line %d: Error, not all packets flushed. " - "Expected %u, got %u\n", - __LINE__, BURST * 2, total_packet_count()); - return -1; - } - - for (i = 0; i < rte_lcore_count() - 1; i++) - printf("Worker %u handled %u packets\n", i, - worker_stats[i].handled_packets); - - printf("Sanity test with worker shutdown passed\n\n"); - return 0; -} - -/* Test that the flush function is able to move packets between workers when - * one worker shuts down.. - */ -static int -test_flush_with_worker_shutdown(struct rte_distributor *d, - struct rte_mempool *p) -{ - struct rte_mbuf *bufs[BURST]; - unsigned i; - - printf("=== Test flush fn with worker shutdown ===\n"); - - clear_packet_count(); - if (rte_mempool_get_bulk(p, (void *)bufs, BURST) != 0) { - printf("line %d: Error getting mbufs from pool\n", __LINE__); - return -1; - } - - /* now set all hash values in all buffers to zero, so all pkts go to the - * one worker thread */ - for (i = 0; i < BURST; i++) - bufs[i]->hash.usr = 0; - - rte_distributor_process(d, bufs, BURST); - /* at this point, we will have processed some packets and have a full - * backlog for the other ones at worker 0. - */ - - /* get worker zero to quit */ - zero_quit = 1; - - /* flush the distributor */ - rte_distributor_flush(d); - - zero_quit = 0; - if (total_packet_count() != BURST) { - printf("Line %d: Error, not all packets flushed. " - "Expected %u, got %u\n", - __LINE__, BURST, total_packet_count()); - return -1; - } - - for (i = 0; i < rte_lcore_count() - 1; i++) - printf("Worker %u handled %u packets\n", i, - worker_stats[i].handled_packets); - - printf("Flush test with worker shutdown passed\n\n"); - return 0; -} - -static -int test_error_distributor_create_name(void) -{ - struct rte_distributor *d = NULL; - char *name = NULL; - - d = rte_distributor_create(name, rte_socket_id(), - rte_lcore_count() - 1); - if (d != NULL || rte_errno != EINVAL) { - printf("ERROR: No error on create() with NULL name param\n"); - return -1; - } - - return 0; -} - - -static -int test_error_distributor_create_numworkers(void) -{ - struct rte_distributor *d = NULL; - d = rte_distributor_create("test_numworkers", rte_socket_id(), - RTE_MAX_LCORE + 10); - if (d != NULL || rte_errno != EINVAL) { - printf("ERROR: No error on create() with num_workers > MAX\n"); - return -1; - } - return 0; -} - - -/* Useful function which ensures that all worker functions terminate */ -static void -quit_workers(struct rte_distributor *d, struct rte_mempool *p) -{ - const unsigned num_workers = rte_lcore_count() - 1; - unsigned i; - struct rte_mbuf *bufs[RTE_MAX_LCORE]; - rte_mempool_get_bulk(p, (void *)bufs, num_workers); - - zero_quit = 0; - quit = 1; - for (i = 0; i < num_workers; i++) - bufs[i]->hash.usr = i << 1; - rte_distributor_process(d, bufs, num_workers); - - rte_mempool_put_bulk(p, (void *)bufs, num_workers); - - rte_distributor_process(d, NULL, 0); - rte_distributor_flush(d); - rte_eal_mp_wait_lcore(); - quit = 0; - worker_idx = 0; -} - -static int -test_distributor(void) -{ - static struct rte_distributor *d; - static struct rte_mempool *p; - - if (rte_lcore_count() < 2) { - printf("ERROR: not enough cores to test distributor\n"); - return -1; - } - - if (d == NULL) { - d = rte_distributor_create("Test_distributor", rte_socket_id(), - rte_lcore_count() - 1); - if (d == NULL) { - printf("Error creating distributor\n"); - return -1; - } - } else { - rte_distributor_flush(d); - rte_distributor_clear_returns(d); - } - - const unsigned nb_bufs = (511 * rte_lcore_count()) < BIG_BATCH ? - (BIG_BATCH * 2) - 1 : (511 * rte_lcore_count()); - if (p == NULL) { - p = rte_pktmbuf_pool_create("DT_MBUF_POOL", nb_bufs, BURST, - 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); - if (p == NULL) { - printf("Error creating mempool\n"); - return -1; - } - } - - rte_eal_mp_remote_launch(handle_work, d, SKIP_MASTER); - if (sanity_test(d, p) < 0) - goto err; - quit_workers(d, p); - - rte_eal_mp_remote_launch(handle_work_with_free_mbufs, d, SKIP_MASTER); - if (sanity_test_with_mbuf_alloc(d, p) < 0) - goto err; - quit_workers(d, p); - - if (rte_lcore_count() > 2) { - rte_eal_mp_remote_launch(handle_work_for_shutdown_test, d, - SKIP_MASTER); - if (sanity_test_with_worker_shutdown(d, p) < 0) - goto err; - quit_workers(d, p); - - rte_eal_mp_remote_launch(handle_work_for_shutdown_test, d, - SKIP_MASTER); - if (test_flush_with_worker_shutdown(d, p) < 0) - goto err; - quit_workers(d, p); - - } else { - printf("Not enough cores to run tests for worker shutdown\n"); - } - - if (test_error_distributor_create_numworkers() == -1 || - test_error_distributor_create_name() == -1) { - printf("rte_distributor_create parameter check tests failed"); - return -1; - } - - return 0; - -err: - quit_workers(d, p); - return -1; -} - -REGISTER_TEST_COMMAND(distributor_autotest, test_distributor); -- cgit 1.2.3-korg