212 lines
7.7 KiB
C
212 lines
7.7 KiB
C
#ifndef _SPLAT_CTL_H
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#define _SPLAY_CTL_H
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#ifdef _KERNEL
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#include <asm/ioctls.h>
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#include <asm/uaccess.h>
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#include <linux/list.h>
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#endif /* _KERNEL */
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#define KZT_VERSION "v1.0"
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#define KZT_VERSION_SIZE 64
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#define KZT_MAJOR 229 /* XXX - Arbitrary */
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#define KZT_MINORS 1
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#define KZT_DEV "/dev/kztctl"
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#define KZT_NAME_SIZE 12
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#define KZT_DESC_SIZE 60
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typedef struct kzt_user {
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char name[KZT_NAME_SIZE]; /* short name */
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char desc[KZT_DESC_SIZE]; /* short description */
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int id; /* unique numeric id */
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} kzt_user_t;
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#define KZT_CFG_MAGIC 0x15263748U
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typedef struct kzt_cfg {
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unsigned int cfg_magic; /* Unique magic */
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int cfg_cmd; /* Config command */
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int cfg_arg1; /* Config command arg 1 */
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int cfg_rc1; /* Config response 1 */
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union {
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struct {
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int size;
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kzt_user_t descs[0];
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} kzt_subsystems;
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struct {
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int size;
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kzt_user_t descs[0];
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} kzt_tests;
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} cfg_data;
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} kzt_cfg_t;
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#define KZT_CMD_MAGIC 0x9daebfc0U
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typedef struct kzt_cmd {
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unsigned int cmd_magic; /* Unique magic */
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int cmd_subsystem; /* Target subsystem */
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int cmd_test; /* Subsystem test */
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int cmd_data_size; /* Extra opaque data */
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char cmd_data_str[0]; /* Opaque data region */
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} kzt_cmd_t;
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/* Valid ioctls */
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#define KZT_CFG _IOWR('f', 101, long)
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#define KZT_CMD _IOWR('f', 102, long)
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/* Valid configuration commands */
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#define KZT_CFG_BUFFER_CLEAR 0x001 /* Clear text buffer */
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#define KZT_CFG_BUFFER_SIZE 0x002 /* Resize text buffer */
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#define KZT_CFG_SUBSYSTEM_COUNT 0x101 /* Number of subsystem */
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#define KZT_CFG_SUBSYSTEM_LIST 0x102 /* List of N subsystems */
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#define KZT_CFG_TEST_COUNT 0x201 /* Number of tests */
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#define KZT_CFG_TEST_LIST 0x202 /* List of N tests */
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/* Valid subsystem and test commands defined in each subsystem, we do
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* need to be careful to avoid colisions. That alone may argue to define
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* them all here, for now we just define the global error codes.
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*/
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#define KZT_SUBSYSTEM_UNKNOWN 0xF00
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#define KZT_TEST_UNKNOWN 0xFFF
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#ifdef _KERNEL
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#define KZT_SUBSYSTEM_INIT(type) \
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({ kzt_subsystem_t *_sub_; \
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\
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_sub_ = (kzt_subsystem_t *)kzt_##type##_init(); \
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if (_sub_ == NULL) { \
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printk(KERN_ERR "Error initializing: " #type "\n"); \
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} else { \
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spin_lock(&kzt_module_lock); \
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list_add_tail(&(_sub_->subsystem_list), \
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&kzt_module_list); \
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spin_unlock(&kzt_module_lock); \
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} \
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})
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#define KZT_SUBSYSTEM_FINI(type) \
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({ kzt_subsystem_t *_sub_, *_tmp_; \
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int _id_, _flag_ = 0; \
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\
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_id_ = kzt_##type##_id(); \
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spin_lock(&kzt_module_lock); \
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list_for_each_entry_safe(_sub_, _tmp_, &kzt_module_list, \
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subsystem_list) { \
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if (_sub_->desc.id == _id_) { \
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list_del_init(&(_sub_->subsystem_list)); \
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spin_unlock(&kzt_module_lock); \
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kzt_##type##_fini(_sub_); \
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spin_lock(&kzt_module_lock); \
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_flag_ = 1; \
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} \
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} \
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spin_unlock(&kzt_module_lock); \
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\
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if (!_flag_) \
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printk(KERN_ERR "Error finalizing: " #type "\n"); \
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})
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#define KZT_TEST_INIT(sub, n, d, tid, func) \
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({ kzt_test_t *_test_; \
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\
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_test_ = (kzt_test_t *)kmalloc(sizeof(*_test_), GFP_KERNEL); \
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if (_test_ == NULL) { \
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printk(KERN_ERR "Error initializing: " n "/" #tid" \n");\
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} else { \
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memset(_test_, 0, sizeof(*_test_)); \
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strncpy(_test_->desc.name, n, KZT_NAME_SIZE); \
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strncpy(_test_->desc.desc, d, KZT_DESC_SIZE); \
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_test_->desc.id = tid; \
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_test_->test = func; \
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INIT_LIST_HEAD(&(_test_->test_list)); \
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spin_lock(&((sub)->test_lock)); \
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list_add_tail(&(_test_->test_list),&((sub)->test_list));\
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spin_unlock(&((sub)->test_lock)); \
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} \
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})
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#define KZT_TEST_FINI(sub, tid) \
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({ kzt_test_t *_test_, *_tmp_; \
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int _flag_ = 0; \
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\
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spin_lock(&((sub)->test_lock)); \
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list_for_each_entry_safe(_test_, _tmp_, \
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&((sub)->test_list), test_list) { \
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if (_test_->desc.id == tid) { \
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list_del_init(&(_test_->test_list)); \
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_flag_ = 1; \
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} \
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} \
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spin_unlock(&((sub)->test_lock)); \
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\
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if (!_flag_) \
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printk(KERN_ERR "Error finalizing: " #tid "\n"); \
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})
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typedef int (*kzt_test_func_t)(struct file *, void *);
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typedef struct kzt_test {
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struct list_head test_list;
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kzt_user_t desc;
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kzt_test_func_t test;
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} kzt_test_t;
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typedef struct kzt_subsystem {
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struct list_head subsystem_list;/* List had to chain entries */
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kzt_user_t desc;
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spinlock_t test_lock;
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struct list_head test_list;
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} kzt_subsystem_t;
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#define KZT_INFO_BUFFER_SIZE 65536
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#define KZT_INFO_BUFFER_REDZONE 256
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typedef struct kzt_info {
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spinlock_t info_lock;
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int info_size;
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char *info_buffer;
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char *info_head; /* Internal kernel use only */
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} kzt_info_t;
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#define sym2str(sym) (char *)(#sym)
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#define kzt_print(file, format, args...) \
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({ kzt_info_t *_info_ = (kzt_info_t *)file->private_data; \
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int _rc_; \
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\
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ASSERT(_info_); \
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ASSERT(_info_->info_buffer); \
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\
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spin_lock(&_info_->info_lock); \
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\
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/* Don't allow the kernel to start a write in the red zone */ \
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if ((int)(_info_->info_head - _info_->info_buffer) > \
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(KZT_INFO_BUFFER_SIZE -KZT_INFO_BUFFER_REDZONE)) { \
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_rc_ = -EOVERFLOW; \
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} else { \
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_rc_ = sprintf(_info_->info_head, format, args); \
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if (_rc_ >= 0) \
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_info_->info_head += _rc_; \
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} \
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\
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spin_unlock(&_info_->info_lock); \
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_rc_; \
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})
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#define kzt_vprint(file, test, format, args...) \
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kzt_print(file, "%*s: " format, KZT_NAME_SIZE, test, args)
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kzt_subsystem_t * kzt_condvar_init(void);
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kzt_subsystem_t * kzt_kmem_init(void);
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kzt_subsystem_t * kzt_mutex_init(void);
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kzt_subsystem_t * kzt_krng_init(void);
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kzt_subsystem_t * kzt_rwlock_init(void);
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kzt_subsystem_t * kzt_taskq_init(void);
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kzt_subsystem_t * kzt_thread_init(void);
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kzt_subsystem_t * kzt_time_init(void);
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#endif /* _KERNEL */
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#endif /* _SPLAY_CTL_H */
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