/* drivers/atm/eni.c - Efficient Networks ENI155P device driver */
/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/errno.h>
#include <linux/atm.h>
#include <linux/atmdev.h>
#include <linux/sonet.h>
#include <linux/skbuff.h>
#include <linux/time.h>
#include <linux/delay.h>
#include <linux/uio.h>
#include <linux/init.h>
#include <linux/atm_eni.h>
#include <linux/bitops.h>
#include <linux/slab.h>
#include <asm/io.h>
#include <linux/atomic.h>
#include <asm/uaccess.h>
#include <asm/string.h>
#include <asm/byteorder.h>
#include "tonga.h"
#include "midway.h"
#include "suni.h"
#include "eni.h"
#if !defined(__i386__) && !defined(__x86_64__)
#ifndef ioremap_nocache
#define ioremap_nocache(X,Y) ioremap(X,Y)
#endif
#endif
/*
* TODO:
*
* Show stoppers
* none
*
* Minor
* - OAM support
* - fix bugs listed below
*/
/*
* KNOWN BUGS:
*
* - may run into JK-JK bug and deadlock
* - should allocate UBR channel first
* - buffer space allocation algorithm is stupid
* (RX: should be maxSDU+maxdelay*rate
* TX: should be maxSDU+min(maxSDU,maxdelay*rate) )
* - doesn't support OAM cells
* - eni_put_free may hang if not putting memory fragments that _complete_
* 2^n block (never happens in real life, though)
*/
#if 0
#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
#else
#define DPRINTK(format,args...)
#endif
#ifndef CONFIG_ATM_ENI_TUNE_BURST
#define CONFIG_ATM_ENI_BURST_TX_8W
#define CONFIG_ATM_ENI_BURST_RX_4W
#endif
#ifndef CONFIG_ATM_ENI_DEBUG
#define NULLCHECK(x)
#define EVENT(s,a,b)
static void event_dump(void)
{
}
#else
/*
* NULL pointer checking
*/
#define NULLCHECK(x) \
if ((unsigned long) (x) < 0x30) \
printk(KERN_CRIT #x "==0x%lx\n",(unsigned long) (x))
/*
* Very extensive activity logging. Greatly improves bug detection speed but
* costs a few Mbps if enabled.
*/
#define EV 64
static const char *ev[EV];
static unsigned long ev_a[EV],ev_b[EV];
static int ec = 0;
static void EVENT(const char *s,unsigned long a,unsigned long b)
{
ev[ec] = s;
ev_a[ec] = a;
ev_b[ec] = b;
ec = (ec+1) % EV;
}
static void event_dump(void)
{
int n,i;
for (n = 0; n < EV; n++) {
i = (ec+n) % EV;
printk(KERN_NOTICE);
printk(ev[i] ? ev[i] : "(null)",ev_a[i],ev_b[i]);
}
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