diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/ocf-compat.h')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/ocf-compat.h | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/ocf-compat.h b/target/linux/generic/files/crypto/ocf/ocf-compat.h new file mode 100644 index 000000000..4ad12232b --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/ocf-compat.h @@ -0,0 +1,372 @@ +#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) + +#define sg_mark_end(sg) + +#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 + + +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0) +#define skb_frag_page(x) ((x)->page) +#endif + +#endif /* __KERNEL__ */ + +/****************************************************************************/ +#endif /* _BSD_COMPAT_H_ */ |