mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 10:39:04 +00:00
375 lines
9.6 KiB
C
375 lines
9.6 KiB
C
#ifndef _BSD_COMPAT_H_
|
|
#define _BSD_COMPAT_H_ 1
|
|
/****************************************************************************/
|
|
/*
|
|
* Provide compat routines for older linux kernels and BSD kernels
|
|
*
|
|
* Written by David McCullough <david_mccullough@mcafee.com>
|
|
* Copyright (C) 2010 David McCullough <david_mccullough@mcafee.com>
|
|
*
|
|
* LICENSE TERMS
|
|
*
|
|
* The free distribution and use of this software in both source and binary
|
|
* form is allowed (with or without changes) provided that:
|
|
*
|
|
* 1. distributions of this source code include the above copyright
|
|
* notice, this list of conditions and the following disclaimer;
|
|
*
|
|
* 2. distributions in binary form include the above copyright
|
|
* notice, this list of conditions and the following disclaimer
|
|
* in the documentation and/or other associated materials;
|
|
*
|
|
* 3. the copyright holder's name is not used to endorse products
|
|
* built using this software without specific written permission.
|
|
*
|
|
* ALTERNATIVELY, provided that this notice is retained in full, this file
|
|
* may be distributed under the terms of the GNU General Public License (GPL),
|
|
* in which case the provisions of the GPL apply INSTEAD OF those given above.
|
|
*
|
|
* DISCLAIMER
|
|
*
|
|
* This software is provided 'as is' with no explicit or implied warranties
|
|
* in respect of its properties, including, but not limited to, correctness
|
|
* and/or fitness for purpose.
|
|
*/
|
|
/****************************************************************************/
|
|
#ifdef __KERNEL__
|
|
#include <linux/version.h>
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED)
|
|
#include <linux/config.h>
|
|
#endif
|
|
|
|
/*
|
|
* fake some BSD driver interface stuff specifically for OCF use
|
|
*/
|
|
|
|
typedef struct ocf_device *device_t;
|
|
|
|
typedef struct {
|
|
int (*cryptodev_newsession)(device_t dev, u_int32_t *sidp, struct cryptoini *cri);
|
|
int (*cryptodev_freesession)(device_t dev, u_int64_t tid);
|
|
int (*cryptodev_process)(device_t dev, struct cryptop *crp, int hint);
|
|
int (*cryptodev_kprocess)(device_t dev, struct cryptkop *krp, int hint);
|
|
} device_method_t;
|
|
#define DEVMETHOD(id, func) id: func
|
|
|
|
struct ocf_device {
|
|
char name[32]; /* the driver name */
|
|
char nameunit[32]; /* the driver name + HW instance */
|
|
int unit;
|
|
device_method_t methods;
|
|
void *softc;
|
|
};
|
|
|
|
#define CRYPTODEV_NEWSESSION(dev, sid, cri) \
|
|
((*(dev)->methods.cryptodev_newsession)(dev,sid,cri))
|
|
#define CRYPTODEV_FREESESSION(dev, sid) \
|
|
((*(dev)->methods.cryptodev_freesession)(dev, sid))
|
|
#define CRYPTODEV_PROCESS(dev, crp, hint) \
|
|
((*(dev)->methods.cryptodev_process)(dev, crp, hint))
|
|
#define CRYPTODEV_KPROCESS(dev, krp, hint) \
|
|
((*(dev)->methods.cryptodev_kprocess)(dev, krp, hint))
|
|
|
|
#define device_get_name(dev) ((dev)->name)
|
|
#define device_get_nameunit(dev) ((dev)->nameunit)
|
|
#define device_get_unit(dev) ((dev)->unit)
|
|
#define device_get_softc(dev) ((dev)->softc)
|
|
|
|
#define softc_device_decl \
|
|
struct ocf_device _device; \
|
|
device_t
|
|
|
|
#define softc_device_init(_sc, _name, _unit, _methods) \
|
|
if (1) {\
|
|
strncpy((_sc)->_device.name, _name, sizeof((_sc)->_device.name) - 1); \
|
|
snprintf((_sc)->_device.nameunit, sizeof((_sc)->_device.name), "%s%d", _name, _unit); \
|
|
(_sc)->_device.unit = _unit; \
|
|
(_sc)->_device.methods = _methods; \
|
|
(_sc)->_device.softc = (void *) _sc; \
|
|
*(device_t *)((softc_get_device(_sc))+1) = &(_sc)->_device; \
|
|
} else
|
|
|
|
#define softc_get_device(_sc) (&(_sc)->_device)
|
|
|
|
/*
|
|
* iomem support for 2.4 and 2.6 kernels
|
|
*/
|
|
#include <linux/version.h>
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
|
|
#define ocf_iomem_t unsigned long
|
|
|
|
/*
|
|
* implement simple workqueue like support for older kernels
|
|
*/
|
|
|
|
#include <linux/tqueue.h>
|
|
|
|
#define work_struct tq_struct
|
|
|
|
#define INIT_WORK(wp, fp, ap) \
|
|
do { \
|
|
(wp)->sync = 0; \
|
|
(wp)->routine = (fp); \
|
|
(wp)->data = (ap); \
|
|
} while (0)
|
|
|
|
#define schedule_work(wp) \
|
|
do { \
|
|
queue_task((wp), &tq_immediate); \
|
|
mark_bh(IMMEDIATE_BH); \
|
|
} while (0)
|
|
|
|
#define flush_scheduled_work() run_task_queue(&tq_immediate)
|
|
|
|
#else
|
|
#define ocf_iomem_t void __iomem *
|
|
|
|
#include <linux/workqueue.h>
|
|
|
|
#endif
|
|
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
|
|
#include <linux/fdtable.h>
|
|
#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
|
|
#define files_fdtable(files) (files)
|
|
#endif
|
|
|
|
#ifdef MODULE_PARM
|
|
#undef module_param /* just in case */
|
|
#define module_param(a,b,c) MODULE_PARM(a,"i")
|
|
#endif
|
|
|
|
#define bzero(s,l) memset(s,0,l)
|
|
#define bcopy(s,d,l) memcpy(d,s,l)
|
|
#define bcmp(x, y, l) memcmp(x,y,l)
|
|
|
|
#define MIN(x,y) ((x) < (y) ? (x) : (y))
|
|
|
|
#define device_printf(dev, a...) ({ \
|
|
printk("%s: ", device_get_nameunit(dev)); printk(a); \
|
|
})
|
|
|
|
#undef printf
|
|
#define printf(fmt...) printk(fmt)
|
|
|
|
#define KASSERT(c,p) if (!(c)) { printk p ; } else
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
|
|
#define ocf_daemonize(str) \
|
|
daemonize(); \
|
|
spin_lock_irq(¤t->sigmask_lock); \
|
|
sigemptyset(¤t->blocked); \
|
|
recalc_sigpending(current); \
|
|
spin_unlock_irq(¤t->sigmask_lock); \
|
|
sprintf(current->comm, str);
|
|
#else
|
|
#define ocf_daemonize(str) daemonize(str);
|
|
#endif
|
|
|
|
#define TAILQ_INSERT_TAIL(q,d,m) list_add_tail(&(d)->m, (q))
|
|
#define TAILQ_EMPTY(q) list_empty(q)
|
|
#define TAILQ_FOREACH(v, q, m) list_for_each_entry(v, q, m)
|
|
|
|
#define read_random(p,l) get_random_bytes(p,l)
|
|
|
|
#define DELAY(x) ((x) > 2000 ? mdelay((x)/1000) : udelay(x))
|
|
#define strtoul simple_strtoul
|
|
|
|
#define pci_get_vendor(dev) ((dev)->vendor)
|
|
#define pci_get_device(dev) ((dev)->device)
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
|
|
#define pci_set_consistent_dma_mask(dev, mask) (0)
|
|
#endif
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
|
|
#define pci_dma_sync_single_for_cpu pci_dma_sync_single
|
|
#endif
|
|
|
|
#ifndef DMA_32BIT_MASK
|
|
#define DMA_32BIT_MASK 0x00000000ffffffffULL
|
|
#endif
|
|
|
|
#ifndef htole32
|
|
#define htole32(x) cpu_to_le32(x)
|
|
#endif
|
|
#ifndef htobe32
|
|
#define htobe32(x) cpu_to_be32(x)
|
|
#endif
|
|
#ifndef htole16
|
|
#define htole16(x) cpu_to_le16(x)
|
|
#endif
|
|
#ifndef htobe16
|
|
#define htobe16(x) cpu_to_be16(x)
|
|
#endif
|
|
|
|
/* older kernels don't have these */
|
|
|
|
#include <asm/irq.h>
|
|
#if !defined(IRQ_NONE) && !defined(IRQ_RETVAL)
|
|
#define IRQ_NONE
|
|
#define IRQ_HANDLED
|
|
#define IRQ_WAKE_THREAD
|
|
#define IRQ_RETVAL
|
|
#define irqreturn_t void
|
|
typedef irqreturn_t (*irq_handler_t)(int irq, void *arg, struct pt_regs *regs);
|
|
#endif
|
|
#ifndef IRQF_SHARED
|
|
#define IRQF_SHARED SA_SHIRQ
|
|
#endif
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
|
|
# define strlcpy(dest,src,len) \
|
|
({strncpy(dest,src,(len)-1); ((char *)dest)[(len)-1] = '\0'; })
|
|
#endif
|
|
|
|
#ifndef MAX_ERRNO
|
|
#define MAX_ERRNO 4095
|
|
#endif
|
|
#ifndef IS_ERR_VALUE
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,5)
|
|
#include <linux/err.h>
|
|
#endif
|
|
#ifndef IS_ERR_VALUE
|
|
#define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
|
|
#endif
|
|
#endif
|
|
|
|
/*
|
|
* common debug for all
|
|
*/
|
|
#if 1
|
|
#define dprintk(a...) do { if (debug) printk(a); } while(0)
|
|
#else
|
|
#define dprintk(a...)
|
|
#endif
|
|
|
|
#ifndef SLAB_ATOMIC
|
|
/* Changed in 2.6.20, must use GFP_ATOMIC now */
|
|
#define SLAB_ATOMIC GFP_ATOMIC
|
|
#endif
|
|
|
|
/*
|
|
* need some additional support for older kernels */
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,2)
|
|
#define pci_register_driver_compat(driver, rc) \
|
|
do { \
|
|
if ((rc) > 0) { \
|
|
(rc) = 0; \
|
|
} else if (rc == 0) { \
|
|
(rc) = -ENODEV; \
|
|
} else { \
|
|
pci_unregister_driver(driver); \
|
|
} \
|
|
} while (0)
|
|
#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
|
|
#define pci_register_driver_compat(driver,rc) ((rc) = (rc) < 0 ? (rc) : 0)
|
|
#else
|
|
#define pci_register_driver_compat(driver,rc)
|
|
#endif
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
|
|
|
|
#include <linux/mm.h>
|
|
#include <asm/scatterlist.h>
|
|
|
|
static inline void sg_set_page(struct scatterlist *sg, struct page *page,
|
|
unsigned int len, unsigned int offset)
|
|
{
|
|
sg->page = page;
|
|
sg->offset = offset;
|
|
sg->length = len;
|
|
}
|
|
|
|
static inline void *sg_virt(struct scatterlist *sg)
|
|
{
|
|
return page_address(sg->page) + sg->offset;
|
|
}
|
|
|
|
#define sg_init_table(sg, n)
|
|
|
|
#endif
|
|
|
|
#ifndef late_initcall
|
|
#define late_initcall(init) module_init(init)
|
|
#endif
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) || !defined(CONFIG_SMP)
|
|
#define ocf_for_each_cpu(cpu) for ((cpu) = 0; (cpu) == 0; (cpu)++)
|
|
#else
|
|
#define ocf_for_each_cpu(cpu) for_each_present_cpu(cpu)
|
|
#endif
|
|
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
|
|
#include <linux/sched.h>
|
|
#define kill_proc(p,s,v) send_sig(s,find_task_by_vpid(p),0)
|
|
#endif
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4)
|
|
|
|
struct ocf_thread {
|
|
struct task_struct *task;
|
|
int (*func)(void *arg);
|
|
void *arg;
|
|
};
|
|
|
|
/* thread startup helper func */
|
|
static inline int ocf_run_thread(void *arg)
|
|
{
|
|
struct ocf_thread *t = (struct ocf_thread *) arg;
|
|
if (!t)
|
|
return -1; /* very bad */
|
|
t->task = current;
|
|
daemonize();
|
|
spin_lock_irq(¤t->sigmask_lock);
|
|
sigemptyset(¤t->blocked);
|
|
recalc_sigpending(current);
|
|
spin_unlock_irq(¤t->sigmask_lock);
|
|
return (*t->func)(t->arg);
|
|
}
|
|
|
|
#define kthread_create(f,a,fmt...) \
|
|
({ \
|
|
struct ocf_thread t; \
|
|
pid_t p; \
|
|
t.task = NULL; \
|
|
t.func = (f); \
|
|
t.arg = (a); \
|
|
p = kernel_thread(ocf_run_thread, &t, CLONE_FS|CLONE_FILES); \
|
|
while (p != (pid_t) -1 && t.task == NULL) \
|
|
schedule(); \
|
|
if (t.task) \
|
|
snprintf(t.task->comm, sizeof(t.task->comm), fmt); \
|
|
(t.task); \
|
|
})
|
|
|
|
#define kthread_bind(t,cpu) /**/
|
|
|
|
#define kthread_should_stop() (strcmp(current->comm, "stopping") == 0)
|
|
|
|
#define kthread_stop(t) \
|
|
({ \
|
|
strcpy((t)->comm, "stopping"); \
|
|
kill_proc((t)->pid, SIGTERM, 1); \
|
|
do { \
|
|
schedule(); \
|
|
} while (kill_proc((t)->pid, SIGTERM, 1) == 0); \
|
|
})
|
|
|
|
#else
|
|
#include <linux/kthread.h>
|
|
#endif
|
|
|
|
#include <linux/skbuff.h>
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0)
|
|
static inline struct page *skb_frag_page(const skb_frag_t *frag)
|
|
{
|
|
return frag->page;
|
|
}
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
/****************************************************************************/
|
|
#endif /* _BSD_COMPAT_H_ */
|