/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2012, 2018 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tmacros.h"
#include <sys/stat.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <rtems/bdbuf.h>
const char rtems_test_name[] = "BLOCK 13";
#define BLOCK_COUNT 11
#define READ_COUNT 23
#define DISK_PATH "/disk"
static int block_access_counts [BLOCK_COUNT];
#define RESET_CACHE (-1)
static const int action_sequence [READ_COUNT] = {
0, 2, 3, 4, 5, 6, 7, 8, 9, 10,
RESET_CACHE,
10,
RESET_CACHE,
9,
RESET_CACHE,
8,
RESET_CACHE,
7, 8,
RESET_CACHE,
6, 7, 9
};
#define UNUSED_LINE { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
static const int expected_block_access_counts [READ_COUNT] [BLOCK_COUNT] = {
{ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
{ 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
{ 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
{ 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
{ 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
{ 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
UNUSED_LINE,
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
UNUSED_LINE,
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 },
UNUSED_LINE,
{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
UNUSED_LINE,
{ 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1 },
UNUSED_LINE,
{ 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 },
{ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 }
};
#define NO_TRIGGER RTEMS_DISK_READ_AHEAD_NO_TRIGGER
#define TRIGGER_AFTER_RESET RTEMS_DISK_READ_AHEAD_NO_TRIGGER
static const rtems_blkdev_bnum trigger [READ_COUNT] = {
1, 3, 5, 5, 8, 8, 8, NO_TRIGGER, NO_TRIGGER, NO_TRIGGER,
TRIGGER_AFTER_RESET,
11,
TRIGGER_AFTER_RESET,
10,
TRIGGER_AFTER_RESET,
9,
TRIGGER_AFTER_RESET,
8, NO_TRIGGER,
TRIGGER_AFTER_RESET,
7, 9, NO_TRIGGER
};
#define NOT_CHANGED_BY_RESET(i) (i)
static const rtems_blkdev_bnum next [READ_COUNT] = {
2, 4, 7, 7, 10, 10, 10, 10, 10, 10,
NOT_CHANGED_BY_RESET(10),
12,
NOT_CHANGED_BY_RESET(12),
11,
NOT_CHANGED_BY_RESET(11),
10,
NOT_CHANGED_BY_RESET(10),
9, 9,
NOT_CHANGED_BY_RESET(9),
8, 11, 11
};
static int test_disk_ioctl(rtems_disk_device *dd, uint32_t req, void *arg)
{
int rv = 0;
if (req == RTEMS_BLKIO_REQUEST) {
rtems_blkdev_request *breq = arg;
rtems_blkdev_sg_buffer *sg = breq->bufs;
uint32_t i;
rtems_test_assert(breq->req == RTEMS_BLKDEV_REQ_READ);
for (i = 0; i < breq->bufnum; ++i) {
rtems_blkdev_bnum block = sg [i].block;
rtems_test_assert(block < BLOCK_COUNT);
++block_access_counts [block];
}
rtems_blkdev_request_done(breq, RTEMS_SUCCESSFUL);
} else {
rv = rtems_blkdev_ioctl(dd, req, arg);
}
return rv;
}
static void test_read_ahead(rtems_disk_device *dd)
{
int i;
for (i = 0; i < READ_COUNT; ++i) {
int action = action_sequence [i];
if (action != RESET_CACHE) {
rtems_blkdev_bnum block = (rtems_blkdev_bnum) action;
rtems_status_code sc;
rtems_bdbuf_buffer *bd;
printf("%i ", action);
sc = rtems_bdbuf_read(dd, block, &bd);
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
sc = rtems_bdbuf_release(bd);
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
rtems_test_assert(
memcmp(
block_access_counts,
expected_block_access_counts [i],
sizeof(block_access_counts)
) == 0
);
} else {
printf("\nreset\n");
rtems_bdbuf_purge_dev(dd);
memset(&block_access_counts, 0, sizeof(block_access_counts));
}
rtems_test_assert(trigger [i] == dd->read_ahead.trigger);
rtems_test_assert(next [i] == dd->read_ahead.next);
}
printf("\n");
}
static void test(void)
{
rtems_status_code sc;
rtems_disk_device *dd;
int fd;
int rv;
sc = rtems_blkdev_create(
DISK_PATH,
1,
BLOCK_COUNT,
test_disk_ioctl,
NULL
);
rtems_test_assert(sc == RTEMS_SUCCESSFUL);
fd = open(DISK_PATH, O_RDWR);
rtems_test_assert(fd >= 0);
rv = rtems_disk_fd_get_disk_device(fd, &dd);
rtems_test_assert(rv == 0);
rv = close(fd);
rtems_test_assert(rv == 0);
test_read_ahead(dd);
rv = unlink(DISK_PATH);
rtems_test_assert(rv == 0);
}
static void Init(rtems_task_argument arg)
{
TEST_BEGIN();
test();
TEST_END();
rtems_test_exit(0);
}
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 4
#define CONFIGURE_BDBUF_BUFFER_MIN_SIZE 1
#define CONFIGURE_BDBUF_BUFFER_MAX_SIZE 1
#define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE BLOCK_COUNT
#define CONFIGURE_BDBUF_MAX_READ_AHEAD_BLOCKS 3
#define CONFIGURE_BDBUF_READ_AHEAD_TASK_PRIORITY 1
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT_TASK_INITIAL_MODES RTEMS_DEFAULT_MODES
#define CONFIGURE_INIT_TASK_PRIORITY 2
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
