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//==========================================================================

//

//      include/machine/param.h

//

//      Architecture/platform specific parameters

//

//==========================================================================

//####BSDCOPYRIGHTBEGIN####

//

// -------------------------------------------

//

// Portions of this software may have been derived from OpenBSD or other sources,

// and are covered by the appropriate copyright disclaimers included herein.

//

// -------------------------------------------

//

//####BSDCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    gthomas

// Contributors: gthomas

// Date:         2000-01-10

// Purpose:      

// Description:  

//              

//

//####DESCRIPTIONEND####

//

//==========================================================================

#ifndef _MACHINE_PARAM_H_

#define _MACHINE_PARAM_H_

#include <pkgconf/net.h>

/*

 * Constants related to network buffer management.

 * MCLBYTES must be no larger than CLBYTES (the software page size), and,

 * on machines that exchange pages of input or output buffers with mbuf

 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple

 * of the hardware page size.

 */

#define MSIZE           128             /* size of an mbuf */

#define MCLSHIFT        11              /* convert bytes to m_buf clusters */

#define MCLBYTES        (1 << MCLSHIFT) /* size of a m_buf cluster */

#define MCLOFSET        (MCLBYTES - 1)  /* offset within a m_buf cluster */

#define CLBYTES         4096            /* size of actual cluster */

/*

 * Round p (pointer or byte index) up to a correctly-aligned value

 * for all data types (int, long, ...).   The result is u_int and

 * must be cast to any desired pointer type.

 */

#define ALIGNBYTES      (sizeof(int) - 1)

#define ALIGN(p)        (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)

// These symbols are used in the IPV6 stuff

// (be more defensive about external setup)

#ifdef __linux__

#undef __linux__

#endif

#ifdef __bsdi__

#undef __bsdi__

#endif

#ifdef __FreeBSD__

#undef __FreeBSD__

#endif

#ifdef __OpenBSD__

#undef __OpenBSD__

#endif

#ifdef __NetBSD__

#undef __NetBSD__

#endif

#define __linux__   0

#define __bsdi__    0

#define __FreeBSD__ 0

#define __OpenBSD__ 1

#define __NetBSD__  0

// These definitions here to avoid needing <sys/systm.h>

// This probably doesn't belong here, but we need these definitions

#include <lib/libkern/libkern.h>

#define SCARG(p,k)      ((p)->k.datum)  /* get arg from args pointer */

#include <stdarg.h>

// TEMP

#include <cyg/infra/diag.h>

#include <cyg/hal/hal_intr.h>

#include <cyg/kernel/kapi.h>

#include <cyg/io/file.h>

struct net_stats {

    int              count;

    cyg_uint32       min_time, max_time, total_time;

};

#ifdef CYGDBG_NET_TIMING_STATS

#define START_STATS()                                   \

    cyg_uint32 start_time, end_time, elapsed_time;      \

    HAL_CLOCK_READ(&start_time);

#define FINISH_STATS(stats)                                                             \

    HAL_CLOCK_READ(&end_time);                                                          \

    if (end_time < start_time) {                                                        \

        elapsed_time = (end_time+CYGNUM_KERNEL_COUNTERS_RTC_PERIOD) - start_time;       \

    } else {                                                                            \

        elapsed_time = end_time - start_time;                                           \

    }                                                                                   \

    if (stats.min_time == 0) {                                                          \

        stats.min_time = 0x7FFFFFFF;                                                    \

    }                                                                                   \

    if (elapsed_time < stats.min_time)                                                  \

        stats.min_time = elapsed_time;                                                  \

    if (elapsed_time > stats.max_time)                                                  \

        stats.max_time = elapsed_time;                                                  \

    stats.total_time += elapsed_time;                                                   \

    stats.count++;

#else

#define START_STATS() 

#define FINISH_STATS(X)

#endif

// timeout support

typedef void (timeout_fun)(void *);

extern cyg_uint32 timeout(timeout_fun *fun, void *arg, cyg_int32 delta);

extern void untimeout(timeout_fun *fun, void *arg);

extern int uiomove(caddr_t cp, int n, struct uio *uio);

extern int copyout(const void *s, void *d, size_t len);

extern int copyin(const void *s, void *d, size_t len);

extern void ovbcopy(const void *s, void *d, size_t len);

extern void get_mono_time(void);

extern int arc4random(void);

extern void get_random_bytes(void *buf, size_t len);

extern void *hashinit(int elements, int type, int flags, u_long *hashmask);

#endif // _MACHINE_PARAM_H_