1142976Sambrisko/*- 2142976Sambrisko * Copyright (C) 2005 IronPort Systems, Inc. All rights reserved. 3142976Sambrisko * 4142976Sambrisko * Redistribution and use in source and binary forms, with or without 5142976Sambrisko * modification, are permitted provided that the following conditions 6142976Sambrisko * are met: 7142976Sambrisko * 1. Redistributions of source code must retain the above copyright 8142976Sambrisko * notice, this list of conditions and the following disclaimer. 9142976Sambrisko * 2. Redistributions in binary form must reproduce the above copyright 10142976Sambrisko * notice, this list of conditions and the following disclaimer in the 11142976Sambrisko * documentation and/or other materials provided with the distribution. 12142976Sambrisko * 13142976Sambrisko * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14142976Sambrisko * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15142976Sambrisko * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16142976Sambrisko * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17142976Sambrisko * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18142976Sambrisko * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19142976Sambrisko * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20142976Sambrisko * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21142976Sambrisko * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22142976Sambrisko * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23142976Sambrisko * SUCH DAMAGE. 24142976Sambrisko * 25142976Sambrisko * $FreeBSD: stable/11/tests/sys/aio/lio_kqueue_test.c 326677 2017-12-08 05:20:54Z asomers $ 26142976Sambrisko */ 27142976Sambrisko 28142976Sambrisko/* 29142976Sambrisko * Note: it is a good idea to run this against a physical drive to 30326677Sasomers * exercise the physio fast path (ie. lio_kqueue_test /dev/<something safe>) 31142976Sambrisko */ 32142976Sambrisko 33280894Sngie#include <sys/types.h> 34280894Sngie#include <sys/event.h> 35280894Sngie#include <sys/time.h> 36142976Sambrisko#include <aio.h> 37142976Sambrisko#include <fcntl.h> 38292818Sngie#include <err.h> 39280894Sngie#include <errno.h> 40142976Sambrisko#include <stdio.h> 41280894Sngie#include <stdlib.h> 42280894Sngie#include <string.h> 43142976Sambrisko#include <unistd.h> 44142976Sambrisko 45282136Sngie#include "freebsd_test_suite/macros.h" 46296277Sjhb#include "local.h" 47142976Sambrisko 48282136Sngie#define PATH_TEMPLATE "aio.XXXXXXXXXX" 49282136Sngie 50142976Sambrisko#define LIO_MAX 5 51326677Sasomers#define MAX_IOCBS_PER_LIO 64 52326677Sasomers#define MAX_IOCBS (LIO_MAX * MAX_IOCBS_PER_LIO) 53142976Sambrisko#define MAX_RUNS 300 54142976Sambrisko 55280894Sngieint 56292818Sngiemain(int argc, char *argv[]) 57292818Sngie{ 58142976Sambrisko int fd; 59282136Sngie struct aiocb *iocb[MAX_IOCBS]; 60292819Sngie struct aiocb **lio[LIO_MAX], **kq_lio; 61326677Sasomers int i, result, run, error, j, k, max_queue_per_proc; 62326677Sasomers int max_iocbs, iocbs_per_lio; 63326677Sasomers size_t max_queue_per_proc_size; 64142976Sambrisko char buffer[32768]; 65292818Sngie int kq; 66142976Sambrisko struct kevent ke, kq_returned; 67142976Sambrisko struct timespec ts; 68142976Sambrisko struct sigevent sig; 69142976Sambrisko time_t time1, time2; 70292819Sngie char *file, pathname[sizeof(PATH_TEMPLATE)]; 71142976Sambrisko int tmp_file = 0, failed = 0; 72280894Sngie 73282136Sngie PLAIN_REQUIRE_KERNEL_MODULE("aio", 0); 74296277Sjhb PLAIN_REQUIRE_UNSAFE_AIO(0); 75282136Sngie 76326677Sasomers max_queue_per_proc_size = sizeof(max_queue_per_proc); 77326677Sasomers if (sysctlbyname("vfs.aio.max_aio_queue_per_proc", 78326677Sasomers &max_queue_per_proc, &max_queue_per_proc_size, NULL, 0) != 0) 79326677Sasomers err(1, "sysctlbyname"); 80326677Sasomers iocbs_per_lio = max_queue_per_proc / LIO_MAX; 81326677Sasomers max_iocbs = LIO_MAX * iocbs_per_lio; 82326677Sasomers 83292818Sngie kq = kqueue(); 84292818Sngie if (kq < 0) 85292818Sngie err(1, "kqeueue(2) failed"); 86142976Sambrisko 87142976Sambrisko if (argc == 1) { 88142976Sambrisko strcpy(pathname, PATH_TEMPLATE); 89142976Sambrisko fd = mkstemp(pathname); 90142976Sambrisko file = pathname; 91142976Sambrisko tmp_file = 1; 92142976Sambrisko } else { 93142976Sambrisko file = argv[1]; 94142976Sambrisko fd = open(file, O_RDWR|O_CREAT, 0666); 95142976Sambrisko } 96292818Sngie if (fd < 0) 97292818Sngie err(1, "can't open %s", argv[1]); 98142976Sambrisko 99142976Sambrisko#ifdef DEBUG 100142976Sambrisko printf("Hello kq %d fd %d\n", kq, fd); 101142976Sambrisko#endif 102280894Sngie 103292818Sngie for (run = 0; run < MAX_RUNS; run++) { 104142976Sambrisko#ifdef DEBUG 105142976Sambrisko printf("Run %d\n", run); 106142976Sambrisko#endif 107142976Sambrisko for (j = 0; j < LIO_MAX; j++) { 108292818Sngie lio[j] = 109326677Sasomers malloc(sizeof(struct aiocb *) * iocbs_per_lio); 110326677Sasomers for (i = 0; i < iocbs_per_lio; i++) { 111326677Sasomers k = (iocbs_per_lio * j) + i; 112292818Sngie lio[j][i] = iocb[k] = 113292818Sngie calloc(1, sizeof(struct aiocb)); 114142976Sambrisko iocb[k]->aio_nbytes = sizeof(buffer); 115142976Sambrisko iocb[k]->aio_buf = buffer; 116142976Sambrisko iocb[k]->aio_fildes = fd; 117292818Sngie iocb[k]->aio_offset 118292818Sngie = iocb[k]->aio_nbytes * k * (run + 1); 119142976Sambrisko 120142976Sambrisko#ifdef DEBUG 121326677Sasomers printf("hello iocb[k] %jd\n", 122326677Sasomers (intmax_t)iocb[k]->aio_offset); 123142976Sambrisko#endif 124142976Sambrisko iocb[k]->aio_lio_opcode = LIO_WRITE; 125142976Sambrisko } 126142976Sambrisko sig.sigev_notify_kqueue = kq; 127154668Sdavidxu sig.sigev_value.sival_ptr = lio[j]; 128142976Sambrisko sig.sigev_notify = SIGEV_KEVENT; 129142976Sambrisko time(&time1); 130142976Sambrisko result = lio_listio(LIO_NOWAIT, lio[j], 131326677Sasomers iocbs_per_lio, &sig); 132142976Sambrisko error = errno; 133142976Sambrisko time(&time2); 134142976Sambrisko#ifdef DEBUG 135326677Sasomers printf("Time %jd %jd %jd result -> %d\n", 136326677Sasomers (intmax_t)time1, (intmax_t)time2, 137326677Sasomers (intmax_t)time2-time1, result); 138142976Sambrisko#endif 139142976Sambrisko if (result != 0) { 140142976Sambrisko errno = error; 141292818Sngie err(1, "FAIL: Result %d iteration %d\n", 142292818Sngie result, j); 143142976Sambrisko } 144142976Sambrisko#ifdef DEBUG 145142976Sambrisko printf("write %d is at %p\n", j, lio[j]); 146142976Sambrisko#endif 147142976Sambrisko } 148280894Sngie 149292818Sngie for (i = 0; i < LIO_MAX; i++) { 150292818Sngie for (j = LIO_MAX - 1; j >=0; j--) { 151142976Sambrisko if (lio[j]) 152142976Sambrisko break; 153142976Sambrisko } 154280894Sngie 155292818Sngie for (;;) { 156142976Sambrisko bzero(&ke, sizeof(ke)); 157142976Sambrisko bzero(&kq_returned, sizeof(ke)); 158142976Sambrisko ts.tv_sec = 0; 159142976Sambrisko ts.tv_nsec = 1; 160142976Sambrisko#ifdef DEBUG 161142976Sambrisko printf("FOO lio %d -> %p\n", j, lio[j]); 162142976Sambrisko#endif 163292818Sngie EV_SET(&ke, (uintptr_t)lio[j], 164142976Sambrisko EVFILT_LIO, EV_ONESHOT, 0, 0, iocb[j]); 165292818Sngie result = kevent(kq, NULL, 0, 166142976Sambrisko &kq_returned, 1, &ts); 167142976Sambrisko error = errno; 168142976Sambrisko if (result < 0) { 169142976Sambrisko perror("kevent error: "); 170142976Sambrisko } 171142976Sambrisko kq_lio = kq_returned.udata; 172142976Sambrisko#ifdef DEBUG 173142976Sambrisko printf("kevent %d %d errno %d return.ident %p " 174292818Sngie "return.data %p return.udata %p %p\n", 175292818Sngie i, result, error, 176319218Sasomers (void*)kq_returned.ident, 177319218Sasomers (void*)kq_returned.data, 178292818Sngie kq_returned.udata, 179142976Sambrisko lio[j]); 180142976Sambrisko#endif 181280894Sngie 182292818Sngie if (kq_lio) 183142976Sambrisko break; 184142976Sambrisko#ifdef DEBUG 185142976Sambrisko printf("Try again\n"); 186142976Sambrisko#endif 187280894Sngie } 188280894Sngie 189142976Sambrisko#ifdef DEBUG 190142976Sambrisko printf("lio %p\n", lio); 191142976Sambrisko#endif 192280894Sngie 193142976Sambrisko for (j = 0; j < LIO_MAX; j++) { 194292818Sngie if (lio[j] == kq_lio) 195142976Sambrisko break; 196142976Sambrisko } 197292818Sngie if (j == LIO_MAX) 198292818Sngie errx(1, "FAIL: "); 199142976Sambrisko 200142976Sambrisko#ifdef DEBUG 201142976Sambrisko printf("Error Result for %d is %d\n", j, result); 202142976Sambrisko#endif 203142976Sambrisko if (result < 0) { 204142976Sambrisko printf("FAIL: run %d, operation %d result %d \n", run, LIO_MAX - i -1, result); 205292818Sngie failed++; 206292818Sngie } else 207142976Sambrisko printf("PASS: run %d, operation %d result %d \n", run, LIO_MAX - i -1, result); 208326677Sasomers for (k = 0; k < max_iocbs / LIO_MAX; k++) { 209280894Sngie result = aio_return(kq_lio[k]); 210142976Sambrisko#ifdef DEBUG 211326677Sasomers printf("Return Result for %d %d is %d\n", j, k, result); 212142976Sambrisko#endif 213142976Sambrisko if (result != sizeof(buffer)) { 214280894Sngie printf("FAIL: run %d, operation %d sub-opt %d result %d (errno=%d) should be %zu\n", 215142976Sambrisko run, LIO_MAX - i -1, k, result, errno, sizeof(buffer)); 216142976Sambrisko } else { 217142976Sambrisko printf("PASS: run %d, operation %d sub-opt %d result %d\n", 218142976Sambrisko run, LIO_MAX - i -1, k, result); 219142976Sambrisko } 220142976Sambrisko } 221142976Sambrisko#ifdef DEBUG 222142976Sambrisko printf("\n"); 223142976Sambrisko#endif 224280894Sngie 225326677Sasomers for (k = 0; k < max_iocbs / LIO_MAX; k++) 226142976Sambrisko free(lio[j][k]); 227142976Sambrisko free(lio[j]); 228142976Sambrisko lio[j] = NULL; 229280894Sngie } 230142976Sambrisko } 231142976Sambrisko#ifdef DEBUG 232142976Sambrisko printf("Done\n"); 233142976Sambrisko#endif 234142976Sambrisko 235292818Sngie if (tmp_file) 236142976Sambrisko unlink(pathname); 237142976Sambrisko 238292818Sngie if (failed) 239292818Sngie errx(1, "FAIL: %d testcases failed", failed); 240292818Sngie else 241292818Sngie errx(0, "PASS: All\n"); 242292818Sngie 243142976Sambrisko} 244