#ifndef __ASM_SPINLOCK_H #define __ASM_SPINLOCK_H #include /* * Your basic SMP spinlocks, allowing only a single CPU anywhere */ typedef struct { volatile unsigned int slock; } spinlock_t; #define SPINLOCK_MAGIC 0xdead4ead #define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 } #define spin_lock_init(x) do { *(x) = SPIN_LOCK_UNLOCKED; } while(0) /* * Simple spin lock operations. There are two variants, one clears IRQ's * on the local processor, one does not. * * We make no fairness assumptions. They have a cost. */ #define spin_is_locked(x) (*(volatile signed char *)(&(x)->slock) <= 0) #define spin_unlock_wait(x) do { barrier(); } while(spin_is_locked(x)) #define spin_lock_string \ "1:\n" \ LOCK \ "decb %0\n\t" \ "jns 3f\n" \ "2:\t" \ "rep;nop\n\t" \ "cmpb $0,%0\n\t" \ "jle 2b\n\t" \ "jmp 1b\n" \ "3:\n\t" #define spin_lock_string_flags \ "1:\n" \ LOCK \ "decb %0\n\t" \ "jns 4f\n\t" \ "2:\t" \ "testl $0x200, %1\n\t" \ "jz 3f\n\t" \ "#sti\n\t" \ "3:\t" \ "rep;nop\n\t" \ "cmpb $0, %0\n\t" \ "jle 3b\n\t" \ "#cli\n\t" \ "jmp 1b\n" \ "4:\n\t" /* * This works. Despite all the confusion. * (except on PPro SMP or if we are using OOSTORE) * (PPro errata 66, 92) */ #define spin_unlock_string \ "xchgb %b0, %1" \ :"=q" (oldval), "=m" (lock->slock) \ :"0" (oldval) : "memory" static inline void _raw_spin_unlock(spinlock_t *lock) { char oldval = 1; __asm__ __volatile__( spin_unlock_string ); } static inline int _raw_spin_trylock(spinlock_t *lock) { char oldval; __asm__ __volatile__( "xchgb %b0,%1\n" :"=q" (oldval), "=m" (lock->slock) :"0" (0) : "memory"); return oldval > 0; } static inline void _raw_spin_lock(spinlock_t *lock) { __asm__ __volatile__( spin_lock_string :"=m" (lock->slock) : : "memory"); } static inline void _raw_spin_lock_flags (spinlock_t *lock, unsigned long flags) { __asm__ __volatile__( spin_lock_string_flags :"=m" (lock->slock) : "r" (flags) : "memory"); } #define _spin_trylock(lock) ({_raw_spin_trylock(lock) ? \ 1 : ({ 0;});}) #define _spin_lock(lock) \ do { \ _raw_spin_lock(lock); \ } while(0) #define _spin_unlock(lock) \ do { \ _raw_spin_unlock(lock); \ } while (0) #define spin_lock(lock) _spin_lock(lock) #define spin_unlock(lock) _spin_unlock(lock) #define DEFINE_SPINLOCK(x) spinlock_t x = SPIN_LOCK_UNLOCKED #endif href='/cgit.cgi/openwrt/upstream/stats/package/libnl-tiny/src/include/linux/genetlink.h'>stats
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#ifndef __LINUX_GENERIC_NETLINK_H
#define __LINUX_GENERIC_NETLINK_H

#include <linux/types.h>
#include <linux/netlink.h>

#define GENL_NAMSIZ	16	/* length of family name */

#define GENL_MIN_ID	NLMSG_MIN_TYPE
#define GENL_MAX_ID	1023

struct genlmsghdr {
	__u8	cmd;
	__u8	version;
	__u16	reserved;
};

#define GENL_HDRLEN	NLMSG_ALIGN(sizeof(struct genlmsghdr))

#define GENL_ADMIN_PERM		0x01
#define GENL_CMD_CAP_DO		0x02
#define GENL_CMD_CAP_DUMP	0x04
#define GENL_CMD_CAP_HASPOL	0x08

/*
 * List of reserved static generic netlink identifiers:
 */
#define GENL_ID_GENERATE	0
#define GENL_ID_CTRL		NLMSG_MIN_TYPE

/**************************************************************************
 * Controller
 **************************************************************************/

enum {
	CTRL_CMD_UNSPEC,
	CTRL_CMD_NEWFAMILY,
	CTRL_CMD_DELFAMILY,
	CTRL_CMD_GETFAMILY,
	CTRL_CMD_NEWOPS,
	CTRL_CMD_DELOPS,
	CTRL_CMD_GETOPS,
	CTRL_CMD_NEWMCAST_GRP,
	CTRL_CMD_DELMCAST_GRP,
	CTRL_CMD_GETMCAST_GRP, /* unused */
	__CTRL_CMD_MAX,
};

#define CTRL_CMD_MAX (__CTRL_CMD_MAX - 1)

enum {
	CTRL_ATTR_UNSPEC,
	CTRL_ATTR_FAMILY_ID,
	CTRL_ATTR_FAMILY_NAME,
	CTRL_ATTR_VERSION,
	CTRL_ATTR_HDRSIZE,
	CTRL_ATTR_MAXATTR,
	CTRL_ATTR_OPS,
	CTRL_ATTR_MCAST_GROUPS,
	__CTRL_ATTR_MAX,
};

#define CTRL_ATTR_MAX (__CTRL_ATTR_MAX - 1)

enum {
	CTRL_ATTR_OP_UNSPEC,
	CTRL_ATTR_OP_ID,
	CTRL_ATTR_OP_FLAGS,
	__CTRL_ATTR_OP_MAX,
};

#define CTRL_ATTR_OP_MAX (__CTRL_ATTR_OP_MAX - 1)

enum {
	CTRL_ATTR_MCAST_GRP_UNSPEC,
	CTRL_ATTR_MCAST_GRP_NAME,
	CTRL_ATTR_MCAST_GRP_ID,
	__CTRL_ATTR_MCAST_GRP_MAX,
};

#define CTRL_ATTR_MCAST_GRP_MAX (__CTRL_ATTR_MCAST_GRP_MAX - 1)

#endif	/* __LINUX_GENERIC_NETLINK_H */
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