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/*-
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LINUXKPI_LINUX_INTERRUPT_H_
#define _LINUXKPI_LINUX_INTERRUPT_H_
#include <linux/cpu.h>
#include <linux/device.h>
#include <linux/pci.h>
#include <linux/irqreturn.h>
#include <linux/hardirq.h>
#include <sys/param.h>
#include <sys/interrupt.h>
typedef irqreturn_t (*irq_handler_t)(int, void *);
#define IRQF_SHARED 0x0004 /* Historically */
#define IRQF_NOBALANCING 0
#define IRQ_DISABLE_UNLAZY 0
#define IRQ_NOTCONNECTED (1U << 31)
int lkpi_request_irq(struct device *, unsigned int, irq_handler_t,
irq_handler_t, unsigned long, const char *, void *);
int lkpi_enable_irq(unsigned int);
void lkpi_disable_irq(unsigned int);
int lkpi_bind_irq_to_cpu(unsigned int, int);
void lkpi_free_irq(unsigned int, void *);
void lkpi_devm_free_irq(struct device *, unsigned int, void *);
static inline int
request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags,
const char *name, void *arg)
{
return (lkpi_request_irq(NULL, irq, handler, NULL, flags, name, arg));
}
static inline int
request_threaded_irq(int irq, irq_handler_t handler,
irq_handler_t thread_handler, unsigned long flags,
const char *name, void *arg)
{
return (lkpi_request_irq(NULL, irq, handler, thread_handler,
flags, name, arg));
}
static inline int
devm_request_irq(struct device *dev, int irq,
irq_handler_t handler, unsigned long flags, const char *name, void *arg)
{
return (lkpi_request_irq(dev, irq, handler, NULL, flags, name, arg));
}
static inline int
devm_request_threaded_irq(struct device *dev, int irq,
irq_handler_t handler, irq_handler_t thread_handler,
unsigned long flags, const char *name, void *arg)
{
return (lkpi_request_irq(dev, irq, handler, thread_handler,
flags, name, arg));
}
static inline int
enable_irq(unsigned int irq)
{
return (lkpi_enable_irq(irq));
}
static inline void
disable_irq(unsigned int irq)
{
lkpi_disable_irq(irq);
}
static inline void
disable_irq_nosync(unsigned int irq)
{
lkpi_disable_irq(irq);
}
static inline int
bind_irq_to_cpu(unsigned int irq, int cpu_id)
{
return (lkpi_bind_irq_to_cpu(irq, cpu_id));
}
static inline void
free_irq(unsigned int irq, void *device)
{
lkpi_free_irq(irq, device);
}
static inline void
devm_free_irq(struct device *xdev, unsigned int irq, void *p)
{
lkpi_devm_free_irq(xdev, irq, p);
}
static inline int
irq_set_affinity_hint(int vector, const cpumask_t *mask)
{
int error;
if (mask != NULL)
error = intr_setaffinity(vector, CPU_WHICH_IRQ, __DECONST(cpumask_t *, mask));
else
error = intr_setaffinity(vector, CPU_WHICH_IRQ, cpuset_root);
return (-error);
}
static inline struct msi_desc *
irq_get_msi_desc(unsigned int irq)
{
return (lkpi_pci_msi_desc_alloc(irq));
}
static inline void
irq_set_status_flags(unsigned int irq __unused, unsigned long flags __unused)
{
}
/*
* LinuxKPI tasklet support
*/
struct tasklet_struct;
typedef void tasklet_func_t(unsigned long);
typedef void tasklet_callback_t(struct tasklet_struct *);
struct tasklet_struct {
TAILQ_ENTRY(tasklet_struct) entry;
tasklet_func_t *func;
/* Our "state" implementation is different. Avoid same name as Linux. */
volatile u_int tasklet_state;
atomic_t count;
unsigned long data;
tasklet_callback_t *callback;
bool use_callback;
};
#define DECLARE_TASKLET(_name, _func, _data) \
struct tasklet_struct _name = { .func = (_func), .data = (_data) }
#define tasklet_hi_schedule(t) tasklet_schedule(t)
/* Some other compat code in the tree has this defined as well. */
#define from_tasklet(_dev, _t, _field) \
container_of(_t, typeof(*(_dev)), _field)
void tasklet_setup(struct tasklet_struct *, tasklet_callback_t *);
extern void tasklet_schedule(struct tasklet_struct *);
extern void tasklet_kill(struct tasklet_struct *);
extern void tasklet_init(struct tasklet_struct *, tasklet_func_t *,
unsigned long data);
extern void tasklet_enable(struct tasklet_struct *);
extern void tasklet_disable(struct tasklet_struct *);
extern void tasklet_disable_nosync(struct tasklet_struct *);
extern int tasklet_trylock(struct tasklet_struct *);
extern void tasklet_unlock(struct tasklet_struct *);
extern void tasklet_unlock_wait(struct tasklet_struct *ts);
#define tasklet_unlock_spin_wait(ts) tasklet_unlock_wait(ts)
#endif /* _LINUXKPI_LINUX_INTERRUPT_H_ */
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