-/*
- * This file is part of the SPL: Solaris Porting Layer.
- *
- * Copyright (c) 2008 Lawrence Livermore National Security, LLC.
- * Produced at Lawrence Livermore National Laboratory
- * Written by:
- * Brian Behlendorf <behlendorf1@llnl.gov>,
- * Herb Wartens <wartens2@llnl.gov>,
- * Jim Garlick <garlick@llnl.gov>
+/*****************************************************************************\
+ * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
+ * Copyright (C) 2007 The Regents of the University of California.
+ * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
* UCRL-CODE-235197
*
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This file is part of the SPL, Solaris Porting Layer.
+ * For details, see <http://zfsonlinux.org/>.
+ *
+ * The SPL is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
*
- * This is distributed in the hope that it will be useful, but WITHOUT
+ * The SPL is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/*
- * My intent is to create a loadable 'splat' (Solaris Porting LAyer
- * Tests) module which can be used as an access point to run
- * in kernel Solaris ABI regression tests. This provides a
- * nice mechanism to validate the shim primates are working properly.
+ * with the SPL. If not, see <http://www.gnu.org/licenses/>.
+ *****************************************************************************
+ * Solaris Porting LAyer Tests (SPLAT) Test Control Interface.
*
- * The basic design is the splat module is that it is constructed of
- * various splat_* source files each of which contains regression tests.
- * For example the splat_linux_kmem.c file contains tests for validating
- * kmem correctness. When the splat module is loaded splat_*_init()
- * will be called for each subsystems tests, similarly splat_*_fini() is
- * called when the splat module is removed. Each test can then be
- * run by making an ioctl() call from a userspace control application
- * to pick the subsystem and test which should be run.
- */
-
+ * The 'splat' (Solaris Porting LAyer Tests) module is designed as a
+ * framework which runs various in kernel regression tests to validate
+ * the SPL primitives honor the Solaris ABI.
+ *
+ * The splat module is constructed of various splat_* source files each
+ * of which contain regression tests for a particular subsystem. For
+ * example, the splat_kmem.c file contains all the tests for validating
+ * the kmem interfaces have been implemented correctly. When the splat
+ * module is loaded splat_*_init() will be called for each subsystems
+ * tests. It is the responsibility of splat_*_init() to register all
+ * the tests for this subsystem using the splat_test_init().
+ * Similarly splat_*_fini() is called when the splat module is removed
+ * and is responsible for unregistering its tests via the splat_test_fini.
+ * Once a test is registered it can then be run with an ioctl()
+ * call which specifies the subsystem and test to be run. The provided
+ * splat command line tool can be used to display all available
+ * subsystems and tests. It can also be used to run the full suite
+ * of regression tests or particular tests.
+\*****************************************************************************/
+
+#include <sys/debug.h>
+#include <sys/mutex.h>
+#include <sys/types.h>
+#include <linux/cdev.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/vmalloc.h>
#include "splat-internal.h"
-static spl_class *splat_class;
-static spl_device *splat_device;
static struct list_head splat_module_list;
static spinlock_t splat_module_lock;
static int
splat_open(struct inode *inode, struct file *file)
{
- unsigned int minor = iminor(inode);
splat_info_t *info;
- if (minor >= SPLAT_MINORS)
- return -ENXIO;
-
info = (splat_info_t *)kmalloc(sizeof(*info), GFP_KERNEL);
if (info == NULL)
return -ENOMEM;
- spin_lock_init(&info->info_lock);
+ mutex_init(&info->info_lock, SPLAT_NAME, MUTEX_DEFAULT, NULL);
info->info_size = SPLAT_INFO_BUFFER_SIZE;
info->info_buffer = (char *)vmalloc(SPLAT_INFO_BUFFER_SIZE);
if (info->info_buffer == NULL) {
kfree(info);
return -ENOMEM;
}
+ memset(info->info_buffer, 0, info->info_size);
info->info_head = info->info_buffer;
file->private_data = (void *)info;
- return 0;
+ splat_print(file, "%s\n", spl_version);
+
+ return 0;
}
static int
splat_release(struct inode *inode, struct file *file)
{
- unsigned int minor = iminor(inode);
splat_info_t *info = (splat_info_t *)file->private_data;
- if (minor >= SPLAT_MINORS)
- return -ENXIO;
-
ASSERT(info);
ASSERT(info->info_buffer);
+ mutex_destroy(&info->info_lock);
vfree(info->info_buffer);
kfree(info);
ASSERT(info);
ASSERT(info->info_buffer);
- spin_lock(&info->info_lock);
+ mutex_enter(&info->info_lock);
memset(info->info_buffer, 0, info->info_size);
info->info_head = info->info_buffer;
- spin_unlock(&info->info_lock);
+ mutex_exit(&info->info_lock);
return 0;
}
ASSERT(info);
ASSERT(info->info_buffer);
- spin_lock(&info->info_lock);
+ mutex_enter(&info->info_lock);
if (kcfg->cfg_arg1 > 0) {
size = kcfg->cfg_arg1;
if (copy_to_user((struct splat_cfg_t __user *)arg, kcfg, sizeof(*kcfg)))
rc = -EFAULT;
out:
- spin_unlock(&info->info_lock);
+ mutex_exit(&info->info_lock);
return rc;
}
return rc;
}
-static int
-splat_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long
+splat_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- unsigned int minor = iminor(file->f_dentry->d_inode);
int rc = 0;
/* Ignore tty ioctls */
if ((cmd & 0xffffff00) == ((int)'T') << 8)
return -ENOTTY;
- if (minor >= SPLAT_MINORS)
- return -ENXIO;
-
switch (cmd) {
case SPLAT_CFG:
rc = splat_ioctl_cfg(file, cmd, arg);
static long
splat_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- return splat_ioctl(NULL, file, cmd, arg);
+ return splat_unlocked_ioctl(file, cmd, arg);
}
#endif /* CONFIG_COMPAT */
static ssize_t splat_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
- unsigned int minor = iminor(file->f_dentry->d_inode);
splat_info_t *info = (splat_info_t *)file->private_data;
int rc = 0;
- if (minor >= SPLAT_MINORS)
- return -ENXIO;
-
ASSERT(info);
ASSERT(info->info_buffer);
- spin_lock(&info->info_lock);
+ mutex_enter(&info->info_lock);
/* Write beyond EOF */
if (*ppos >= info->info_size) {
*ppos += count;
rc = count;
out:
- spin_unlock(&info->info_lock);
+ mutex_exit(&info->info_lock);
return rc;
}
static ssize_t splat_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- unsigned int minor = iminor(file->f_dentry->d_inode);
splat_info_t *info = (splat_info_t *)file->private_data;
int rc = 0;
- if (minor >= SPLAT_MINORS)
- return -ENXIO;
-
ASSERT(info);
ASSERT(info->info_buffer);
- spin_lock(&info->info_lock);
+ mutex_enter(&info->info_lock);
/* Read beyond EOF */
if (*ppos >= info->info_size)
*ppos += count;
rc = count;
out:
- spin_unlock(&info->info_lock);
+ mutex_exit(&info->info_lock);
return rc;
}
static loff_t splat_seek(struct file *file, loff_t offset, int origin)
{
- unsigned int minor = iminor(file->f_dentry->d_inode);
splat_info_t *info = (splat_info_t *)file->private_data;
int rc = -EINVAL;
- if (minor >= SPLAT_MINORS)
- return -ENXIO;
-
ASSERT(info);
ASSERT(info->info_buffer);
- spin_lock(&info->info_lock);
+ mutex_enter(&info->info_lock);
switch (origin) {
case 0: /* SEEK_SET - No-op just do it */
rc = offset;
}
- spin_unlock(&info->info_lock);
+ mutex_exit(&info->info_lock);
return rc;
}
.owner = THIS_MODULE,
.open = splat_open,
.release = splat_release,
- .ioctl = splat_ioctl,
+ .unlocked_ioctl = splat_unlocked_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = splat_compat_ioctl,
#endif
.llseek = splat_seek,
};
-static struct cdev splat_cdev = {
- .owner = THIS_MODULE,
- .kobj = { .name = SPLAT_NAME, },
+static struct miscdevice splat_misc = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = SPLAT_NAME,
+ .fops = &splat_fops,
};
+static void splat_subsystem_init(const char *name,
+ splat_subsystem_t *(*init)(void))
+{
+ splat_subsystem_t *sub;
+ sub = init();
+ if (sub == NULL) {
+ printk(KERN_ERR "splat: Error initializing: %s\n", name);
+ return;
+ }
+ spin_lock(&splat_module_lock);
+ list_add_tail(&sub->subsystem_list, &splat_module_list);
+ spin_unlock(&splat_module_lock);
+}
+
+static void splat_subsystem_fini(const char *name,
+ int (*id_func)(void), void (*fini)(splat_subsystem_t *))
+{
+ splat_subsystem_t *sub, *tmp;
+ int id, flag = 0;
+
+ id = id_func();
+ spin_lock(&splat_module_lock);
+ list_for_each_entry_safe(sub, tmp, &splat_module_list, subsystem_list) {
+ if (sub->desc.id == id) {
+ list_del_init(&sub->subsystem_list);
+ flag = 1;
+ break;
+ }
+ }
+ spin_unlock(&splat_module_lock);
+ if (flag == 0)
+ printk(KERN_ERR "splat: Error finalizing: %s\n", name);
+ else
+ fini(sub);
+}
+
+#define SPLAT_SUBSYSTEM_INIT(type) \
+ splat_subsystem_init(#type, splat_##type##_init)
+#define SPLAT_SUBSYSTEM_FINI(type) \
+ splat_subsystem_fini(#type, splat_##type##_id, splat_##type##_fini)
+
+void splat_test_init(splat_subsystem_t *sub, const char *name,
+ const char *desc, unsigned int tid, splat_test_func_t func)
+{
+ splat_test_t *test;
+ test = kmalloc(sizeof (splat_test_t), GFP_KERNEL);
+ if (test == NULL) {
+ printk(KERN_ERR "splat: Error initializing: %s/%u\n",
+ name, tid);
+ return;
+ }
+ memset(test, 0, sizeof (splat_test_t));
+ strncpy(test->desc.name, name, SPLAT_NAME_SIZE-1);
+ strncpy(test->desc.desc, desc, SPLAT_DESC_SIZE-1);
+ test->desc.id = tid;
+ test->test = func;
+ INIT_LIST_HEAD(&test->test_list);
+ spin_lock(&sub->test_lock);
+ list_add_tail(&test->test_list, &sub->test_list);
+ spin_unlock(&sub->test_lock);
+}
+
+void splat_test_fini(splat_subsystem_t *sub, unsigned int tid)
+{
+ splat_test_t *test, *tmp;
+ int flag = 0;
+
+ spin_lock(&sub->test_lock);
+ list_for_each_entry_safe(test, tmp, &sub->test_list, test_list) {
+ if (test->desc.id == tid) {
+ list_del_init(&test->test_list);
+ kfree(test);
+ flag = 1;
+ break;
+ }
+ }
+ spin_unlock(&sub->test_lock);
+
+ if (flag == 0)
+ printk(KERN_ERR "splat: Error finalizing: %u\n", tid);
+}
+
static int __init
splat_init(void)
{
- dev_t dev;
- int rc;
+ int error;
spin_lock_init(&splat_module_lock);
INIT_LIST_HEAD(&splat_module_list);
SPLAT_SUBSYSTEM_INIT(list);
SPLAT_SUBSYSTEM_INIT(generic);
SPLAT_SUBSYSTEM_INIT(cred);
-
- dev = MKDEV(SPLAT_MAJOR, 0);
- if ((rc = register_chrdev_region(dev, SPLAT_MINORS, SPLAT_NAME)))
- goto error;
-
- /* Support for registering a character driver */
- cdev_init(&splat_cdev, &splat_fops);
- if ((rc = cdev_add(&splat_cdev, dev, SPLAT_MINORS))) {
- printk(KERN_ERR "SPLAT: Error adding cdev, %d\n", rc);
- kobject_put(&splat_cdev.kobj);
- unregister_chrdev_region(dev, SPLAT_MINORS);
- goto error;
+ SPLAT_SUBSYSTEM_INIT(zlib);
+ SPLAT_SUBSYSTEM_INIT(linux);
+
+ error = misc_register(&splat_misc);
+ if (error) {
+ printk(KERN_INFO "SPLAT: misc_register() failed %d\n", error);
+ } else {
+ printk(KERN_INFO "SPLAT: Loaded module v%s-%s%s\n",
+ SPL_META_VERSION, SPL_META_RELEASE, SPL_DEBUG_STR);
}
- /* Support for udev make driver info available in sysfs */
- splat_class = spl_class_create(THIS_MODULE, "splat");
- if (IS_ERR(splat_class)) {
- rc = PTR_ERR(splat_class);
- printk(KERN_ERR "SPLAT: Error creating splat class, %d\n", rc);
- cdev_del(&splat_cdev);
- unregister_chrdev_region(dev, SPLAT_MINORS);
- goto error;
- }
-
- splat_device = spl_device_create(splat_class, NULL,
- MKDEV(SPLAT_MAJOR, 0),
- NULL, SPLAT_NAME);
-
- printk(KERN_INFO "SPLAT: Loaded Solaris Porting LAyer "
- "Tests v%s\n", SPL_META_VERSION);
- return 0;
-error:
- printk(KERN_ERR "SPLAT: Error registering splat device, %d\n", rc);
- return rc;
+ return (error);
}
-static void
+static void __exit
splat_fini(void)
{
- dev_t dev = MKDEV(SPLAT_MAJOR, 0);
-
- spl_device_destroy(splat_class, splat_device, dev);
- spl_class_destroy(splat_class);
- cdev_del(&splat_cdev);
- unregister_chrdev_region(dev, SPLAT_MINORS);
+ misc_deregister(&splat_misc);
+ SPLAT_SUBSYSTEM_FINI(linux);
+ SPLAT_SUBSYSTEM_FINI(zlib);
SPLAT_SUBSYSTEM_FINI(cred);
SPLAT_SUBSYSTEM_FINI(generic);
SPLAT_SUBSYSTEM_FINI(list);
SPLAT_SUBSYSTEM_FINI(kmem);
ASSERT(list_empty(&splat_module_list));
- printk(KERN_INFO "SPLAT: Unloaded Solaris Porting LAyer "
- "Tests v%s\n", SPL_META_VERSION);
+ printk(KERN_INFO "SPLAT: Unloaded module v%s-%s%s\n",
+ SPL_META_VERSION, SPL_META_RELEASE, SPL_DEBUG_STR);
}
module_init(splat_init);
module_exit(splat_fini);
-MODULE_AUTHOR("Lawrence Livermore National Labs");
MODULE_DESCRIPTION("Solaris Porting LAyer Tests");
-MODULE_LICENSE("GPL");
+MODULE_AUTHOR(SPL_META_AUTHOR);
+MODULE_LICENSE(SPL_META_LICENSE);
+MODULE_VERSION(SPL_META_VERSION "-" SPL_META_RELEASE);
projects / mirror_spl-debian.git / blobdiff