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zfs/include/sys/sunddi.h

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/*
* This file is part of the SPL: Solaris Porting Layer.
*
* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
* Produced at Lawrence Livermore National Laboratory
* Written by:
* Brian Behlendorf <behlendorf1@llnl.gov>,
* Herb Wartens <wartens2@llnl.gov>,
* Jim Garlick <garlick@llnl.gov>
* UCRL-CODE-235197
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _SPL_SUNDDI_H
#define _SPL_SUNDDI_H
#include <sys/cred.h>
#include <sys/uio.h>
#include <sys/sunldi.h>
#include <sys/mutex.h>
#include <sys/u8_textprep.h>
#include <linux/kdev_t.h>
#include <linux/fs.h>
#include <linux/cdev.h>
#include <linux/list.h>
#include <spl-device.h>
typedef int ddi_devid_t;
typedef enum {
DDI_INFO_DEVT2DEVINFO = 0,
DDI_INFO_DEVT2INSTANCE = 1
} ddi_info_cmd_t;
typedef enum {
DDI_ATTACH = 0,
DDI_RESUME = 1,
DDI_PM_RESUME = 2
} ddi_attach_cmd_t;
typedef enum {
DDI_DETACH = 0,
DDI_SUSPEND = 1,
DDI_PM_SUSPEND = 2,
DDI_HOTPLUG_DETACH = 3
} ddi_detach_cmd_t;
typedef enum {
DDI_RESET_FORCE = 0
} ddi_reset_cmd_t;
typedef enum {
PROP_LEN = 0,
PROP_LEN_AND_VAL_BUF = 1,
PROP_LEN_AND_VAL_ALLOC = 2,
PROP_EXISTS = 3
} ddi_prop_op_t;
typedef void *devmap_cookie_t;
typedef struct as {
uchar_t a_flags;
} as_t;
typedef struct pollhead {
struct polldat *ph_list;
} pollhead_t;
typedef struct dev_info {
kmutex_t di_lock;
struct dev_ops *di_ops;
struct cdev *di_cdev;
spl_class *di_class;
spl_device *di_device;
major_t di_major;
minor_t di_minor;
dev_t di_dev;
unsigned di_minors;
int di_flags;
struct list_head di_list;
} dev_info_t;
typedef struct cb_ops {
int (*cb_open)(dev_t *devp, int flag, int otyp, cred_t *credp);
int (*cb_close)(dev_t dev, int flag, int otyp, cred_t *credp);
int (*cb_strategy)(void *bp);
int (*cb_print)(dev_t dev, char *str);
int (*cb_dump)(dev_t dev, caddr_t addr, daddr_t blkno, int nblk);
int (*cb_read)(dev_t dev, struct uio *uiop, cred_t *credp);
int (*cb_write)(dev_t dev, struct uio *uiop, cred_t *credp);
int (*cb_ioctl)(dev_t dev, int cmd, intptr_t arg, int mode,
cred_t *credp, int *rvalp);
int (*cb_devmap)(dev_t dev, devmap_cookie_t dhp, offset_t off,
size_t len, size_t *maplen, uint_t model);
int (*cb_mmap)(dev_t dev, off_t off, int prot);
int (*cb_segmap)(dev_t dev, off_t off, struct as *asp,
caddr_t *addrp, off_t len, unsigned int prot,
unsigned int maxprot, unsigned int flags,
cred_t *credp);
int (*cb_chpoll)(dev_t dev, short events, int anyyet,
short *reventsp, struct pollhead **phpp);
int (*cb_prop_op)(dev_t dev, dev_info_t *dip,
ddi_prop_op_t prop_op, int mod_flags,
char *name, caddr_t valuep, int *length);
struct streamtab *cb_str;
int cb_flag;
int cb_rev;
int (*cb_aread)(dev_t dev, struct aio_req *aio, cred_t *credp);
int (*cb_awrite)(dev_t dev, struct aio_req *aio, cred_t *credp);
} cb_ops_t;
typedef struct dev_ops {
int devo_rev;
int devo_refcnt;
int (*devo_getinfo)(dev_info_t *dip,
ddi_info_cmd_t infocmd, void *arg, void **result);
int (*devo_identify)(dev_info_t *dip);
int (*devo_probe)(dev_info_t *dip);
int (*devo_attach)(dev_info_t *dip, ddi_attach_cmd_t cmd);
int (*devo_detach)(dev_info_t *dip, ddi_detach_cmd_t cmd);
int (*devo_reset)(dev_info_t *dip, ddi_reset_cmd_t cmd);
struct cb_ops *devo_cb_ops;
struct bus_ops *devo_bus_ops;
int (*devo_power)(dev_info_t *dip, int component, int level);
} dev_ops_t;
typedef struct mod_ops {
int (*modm_install)(void);
int (*modm_remove)(void);
int (*modm_info)(void);
} mod_ops_t;
typedef struct modldrv {
struct mod_ops *drv_modops;
char *drv_linkinfo;
struct dev_ops *drv_dev_ops;
struct dev_info *drv_dev_info;
} modldrv_t;
#define MODREV_1 1
#define D_NEW 0x000
#define D_MP 0x020
#define D_64BIT 0x200
#define DEVO_REV 3
#define CB_REV 1
#define DDI_SUCCESS 0
#define DDI_FAILURE -1
#define DDI_PSEUDO "ddi_pseudo"
#define nodev NULL
#define nochpoll NULL
#define nulldev NULL
#define mod_driverops NULL
#define ddi_prop_op NULL
#define getminor(x) (x)
#define getmajor(x) (x)
#define ddi_driver_major(di) getmajor(di->di_dev)
#define DDI_DEV_T_NONE ((dev_t)-1)
#define DDI_DEV_T_ANY ((dev_t)-2)
#define DDI_MAJOR_T_UNKNOWN ((major_t)0)
#define DDI_PROP_DONTPASS 0x0001
#define DDI_PROP_CANSLEEP 0x0002
#define GLOBAL_DEV 0x02
#define NODEBOUND_DEV 0x04
#define NODESPECIFIC_DEV 0x06
#define ENUMERATED_DEV 0x08
#define ddi_prop_lookup_string(x1,x2,x3,x4,x5) (*x5 = NULL)
#define ddi_prop_free(x) (void)0
#define ddi_root_node() (void)0
#define mod_install(x) 0
#define mod_remove(x) 0
extern int __ddi_create_minor_node(dev_info_t *dip, char *name, int spec_type,
minor_t minor_num, char *node_type,
int flags, struct module *mod);
extern void __ddi_remove_minor_node(dev_info_t *dip, char *name);
extern int __mod_install(struct modlinkage *modlp);
extern int __mod_remove(struct modlinkage *modlp);
extern int ddi_strtoul(const char *, char **, int, unsigned long *);
extern int ddi_strtol(const char *, char **, int, long *);
extern int ddi_strtoull(const char *, char **, int, unsigned long long *);
extern int ddi_strtoll(const char *, char **, int, long long *);
static __inline__ void ddi_report_dev(dev_info_t *d) { }
static __inline__ void ddi_prop_remove_all(dev_info_t *dip) { }
static __inline__ void
ddi_remove_minor_node(dev_info_t *di, char *name)
{
#ifdef HAVE_GPL_ONLY_SYMBOLS
/* Cleanup udev (GPL-only symbols required). This is performed as
* part of an inline function to ensure that these symbols are not
* linked against the SPL which is GPL'ed. But instead they are
* linked against the package building against the SPL to ensure
* its license allows linking with GPL-only symbols. */
if (di->di_class) {
spl_device_destroy(di->di_class, di->di_device, di->di_dev);
spl_class_destroy(di->di_class);
di->di_class = NULL;
di->di_dev = 0;
}
#endif
__ddi_remove_minor_node(di, name);
}
static __inline__ int
ddi_create_minor_node(dev_info_t *di, char *name, int spec_type,
minor_t minor_num, char *node_type, int flags)
{
int rc;
rc = __ddi_create_minor_node(di, name, spec_type, minor_num,
node_type, flags, THIS_MODULE);
if (rc)
return rc;
#ifdef HAVE_GPL_ONLY_SYMBOLS
/* Setup udev (GPL-only symbols required). This is performed as
* part of an inline function to ensure that these symbols are not
* linked against the SPL which is GPL'ed. But instead they are
* linked against the package building against the SPL to ensure
* its license allows linking with GPL-only symbols. */
di->di_class = spl_class_create(THIS_MODULE, name);
if (IS_ERR(di->di_class)) {
rc = PTR_ERR(di->di_class);
di->di_class = NULL;
ddi_remove_minor_node(di, name);
CERROR("Error creating %s class, %d\n", name, rc);
RETURN(DDI_FAILURE);
}
/* Do not append a 0 to devices with minor nums of 0 */
di->di_device = spl_device_create(di->di_class, NULL, di->di_dev, NULL,
(di->di_minor == 0) ? "%s" : "%s%d",
name, di->di_minor);
#endif
return rc;
}
#undef mod_install
#undef mod_remove
#define mod_install __mod_install
#define mod_remove __mod_remove
#endif /* SPL_SUNDDI_H */
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