xref: /titanic_50/usr/src/uts/common/sys/ddi_impldefs.h (revision c44ec8d260d788e283d996b86435cafd24a3179a)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 #ifndef _SYS_DDI_IMPLDEFS_H
26 #define	_SYS_DDI_IMPLDEFS_H
27 
28 #include <sys/types.h>
29 #include <sys/param.h>
30 #include <sys/t_lock.h>
31 #include <sys/ddipropdefs.h>
32 #include <sys/devops.h>
33 #include <sys/autoconf.h>
34 #include <sys/mutex.h>
35 #include <vm/page.h>
36 #include <sys/dacf_impl.h>
37 #include <sys/ndifm.h>
38 #include <sys/epm.h>
39 #include <sys/ddidmareq.h>
40 #include <sys/ddi_intr.h>
41 #include <sys/ddi_hp.h>
42 #include <sys/ddi_hp_impl.h>
43 #include <sys/ddi_isa.h>
44 #include <sys/id_space.h>
45 #include <sys/modhash.h>
46 #include <sys/bitset.h>
47 
48 #ifdef	__cplusplus
49 extern "C" {
50 #endif
51 
52 /*
53  * The device id implementation has been switched to be based on properties.
54  * For compatibility with di_devid libdevinfo interface the following
55  * must be defined:
56  */
57 #define	DEVID_COMPATIBILITY	((ddi_devid_t)-1)
58 
59 /*
60  * Definitions for node class.
61  * DDI_NC_PROM: a node with a nodeid that may be used in a promif call.
62  * DDI_NC_PSEUDO: a software created node with a software assigned nodeid.
63  */
64 typedef enum {
65 	DDI_NC_PROM = 0,
66 	DDI_NC_PSEUDO
67 } ddi_node_class_t;
68 
69 /*
70  * Definitions for generic callback mechanism.
71  */
72 typedef enum {
73 	DDI_CB_INTR_ADD,		/* More available interrupts */
74 	DDI_CB_INTR_REMOVE		/* Fewer available interrupts */
75 } ddi_cb_action_t;
76 
77 typedef enum {
78 	DDI_CB_FLAG_INTR = 0x1		/* Driver is IRM aware */
79 } ddi_cb_flags_t;
80 
81 #define	DDI_CB_FLAG_VALID(f)	((f) & DDI_CB_FLAG_INTR)
82 
83 typedef int	(*ddi_cb_func_t)(dev_info_t *dip, ddi_cb_action_t action,
84 		    void *cbarg, void *arg1, void *arg2);
85 
86 typedef struct ddi_cb {
87 	uint64_t	cb_flags;
88 	dev_info_t	*cb_dip;
89 	ddi_cb_func_t	cb_func;
90 	void		*cb_arg1;
91 	void		*cb_arg2;
92 } ddi_cb_t;
93 
94 /*
95  * dev_info:	The main device information structure this is intended to be
96  *		opaque to drivers and drivers should use ddi functions to
97  *		access *all* driver accessible fields.
98  *
99  * devi_parent_data includes property lists (interrupts, registers, etc.)
100  * devi_driver_data includes whatever the driver wants to place there.
101  */
102 struct devinfo_audit;
103 
104 typedef struct devi_port {
105 	union {
106 		struct {
107 			uint32_t type;
108 			uint32_t pad;
109 		} port;
110 		uint64_t type64;
111 	} info;
112 	void	*priv_p;
113 } devi_port_t;
114 
115 typedef struct devi_bus_priv {
116 	devi_port_t port_up;
117 	devi_port_t port_down;
118 } devi_bus_priv_t;
119 
120 struct iommulib_unit;
121 typedef struct iommulib_unit *iommulib_handle_t;
122 typedef uint8_t	ndi_flavor_t;
123 struct ddi_hp_cn_handle;
124 
125 struct in_node;
126 
127 struct dev_info  {
128 
129 	struct dev_info *devi_parent;	/* my parent node in tree	*/
130 	struct dev_info *devi_child;	/* my child list head		*/
131 	struct dev_info *devi_sibling;	/* next element on my level	*/
132 
133 	char	*devi_binding_name;	/* name used to bind driver:	*/
134 					/* shared storage, points to	*/
135 					/* devi_node_name, devi_compat_names */
136 					/* or devi_rebinding_name	*/
137 
138 	char	*devi_addr;		/* address part of name		*/
139 
140 	int	devi_nodeid;		/* device nodeid		*/
141 	int	devi_instance;		/* device instance number	*/
142 
143 	struct dev_ops *devi_ops;	/* driver operations		*/
144 
145 	void	*devi_parent_data;	/* parent private data		*/
146 	void	*devi_driver_data;	/* driver private data		*/
147 
148 	ddi_prop_t *devi_drv_prop_ptr;	/* head of driver prop list */
149 	ddi_prop_t *devi_sys_prop_ptr;	/* head of system prop list */
150 
151 	struct ddi_minor_data *devi_minor;	/* head of minor list */
152 	struct dev_info *devi_next;	/* Next instance of this device */
153 	kmutex_t devi_lock;		/* Protects per-devinfo data */
154 
155 	/* logical parents for busop primitives */
156 
157 	struct dev_info *devi_bus_map_fault;	/* bus_map_fault parent	 */
158 	struct dev_info *devi_bus_dma_map;	/* bus_dma_map parent	 */
159 	struct dev_info *devi_bus_dma_allochdl; /* bus_dma_newhdl parent */
160 	struct dev_info *devi_bus_dma_freehdl;  /* bus_dma_freehdl parent */
161 	struct dev_info *devi_bus_dma_bindhdl;  /* bus_dma_bindhdl parent */
162 	struct dev_info *devi_bus_dma_unbindhdl; /* bus_dma_unbindhdl parent */
163 	struct dev_info *devi_bus_dma_flush;    /* bus_dma_flush parent	 */
164 	struct dev_info *devi_bus_dma_win;	/* bus_dma_win parent	 */
165 	struct dev_info *devi_bus_dma_ctl;	/* bus_dma_ctl parent	 */
166 	struct dev_info	*devi_bus_ctl;		/* bus_ctl parent	 */
167 
168 	ddi_prop_t *devi_hw_prop_ptr;		/* head of hw prop list */
169 
170 	char	*devi_node_name;		/* The 'name' of the node */
171 	char	*devi_compat_names;		/* A list of driver names */
172 	size_t	devi_compat_length;		/* Size of compat_names */
173 
174 	int (*devi_bus_dma_bindfunc)(dev_info_t *, dev_info_t *,
175 	    ddi_dma_handle_t, struct ddi_dma_req *, ddi_dma_cookie_t *,
176 	    uint_t *);
177 	int (*devi_bus_dma_unbindfunc)(dev_info_t *, dev_info_t *,
178 	    ddi_dma_handle_t);
179 
180 	char		*devi_devid_str;	/* registered device id */
181 
182 	/*
183 	 * power management entries
184 	 * components exist even if the device is not currently power managed
185 	 */
186 	struct pm_info *devi_pm_info;		/* 0 => dev not power managed */
187 	uint_t		devi_pm_flags;		/* pm flags */
188 	int		devi_pm_num_components;	/* number of components */
189 	size_t		devi_pm_comp_size;	/* size of devi_components */
190 	struct pm_component *devi_pm_components; /* array of pm components */
191 	struct dev_info *devi_pm_ppm;		/* ppm attached to this one */
192 	void		*devi_pm_ppm_private;	/* for use by ppm driver */
193 	int		devi_pm_dev_thresh;	/* "device" threshold */
194 	uint_t		devi_pm_kidsupcnt;	/* # of kids powered up */
195 	struct pm_scan	*devi_pm_scan;		/* pm scan info */
196 	uint_t		devi_pm_noinvolpm;	/* # of descendents no-invol */
197 	uint_t		devi_pm_volpmd;		/* # of voluntarily pm'ed */
198 	kmutex_t	devi_pm_lock;		/* pm lock for state */
199 	kmutex_t	devi_pm_busy_lock;	/* for component busy count */
200 
201 	uint_t		devi_state;		/* device/bus state flags */
202 						/* see below for definitions */
203 	kcondvar_t	devi_cv;		/* cv */
204 	int		devi_ref;		/* reference count */
205 
206 	dacf_rsrvlist_t *devi_dacf_tasks;	/* dacf reservation queue */
207 
208 	ddi_node_class_t devi_node_class;	/* Node class */
209 	int		devi_node_attributes;	/* Node attributes: See below */
210 
211 	char		*devi_device_class;
212 
213 	/*
214 	 * New mpxio kernel hooks entries
215 	 */
216 	int		devi_mdi_component;	/* mpxio component type */
217 	void		*devi_mdi_client;	/* mpxio client information */
218 	void		*devi_mdi_xhci;		/* vhci/phci info */
219 
220 	ddi_prop_list_t	*devi_global_prop_list;	/* driver global properties */
221 	major_t		devi_major;		/* driver major number */
222 	ddi_node_state_t devi_node_state;	/* state of node */
223 	uint_t		devi_flags;		/* configuration flags */
224 	int		devi_circular;		/* for recursive operations */
225 	void		*devi_busy_thread;	/* thread operating on node */
226 	void		*devi_taskq;		/* hotplug taskq */
227 
228 	/* device driver statistical and audit info */
229 	struct devinfo_audit *devi_audit;		/* last state change */
230 
231 	/*
232 	 * FMA support for resource caches and error handlers
233 	 */
234 	struct i_ddi_fmhdl	*devi_fmhdl;
235 
236 	uint_t		devi_cpr_flags;
237 
238 	/* Owned by DDI interrupt framework */
239 	devinfo_intr_t	*devi_intr_p;
240 
241 	void		*devi_nex_pm;		/* nexus PM private */
242 
243 	char		*devi_addr_buf;		/* buffer for devi_addr */
244 
245 	char		*devi_rebinding_name;	/* binding_name of rebind */
246 
247 	/* For device contracts that have this dip's minor node as resource */
248 	kmutex_t	devi_ct_lock;		/* contract lock */
249 	kcondvar_t	devi_ct_cv;		/* contract cv */
250 	int		devi_ct_count;		/* # of outstanding responses */
251 	int		devi_ct_neg;		/* neg. occurred on dip */
252 	list_t		devi_ct;
253 
254 	/* owned by bus framework */
255 	devi_bus_priv_t	devi_bus;		/* bus private data */
256 
257 	/* Declarations of the pure dynamic properties to snapshot */
258 	struct i_ddi_prop_dyn	*devi_prop_dyn_driver;	/* prop_op */
259 	struct i_ddi_prop_dyn	*devi_prop_dyn_parent;	/* bus_prop_op */
260 
261 	/* For x86 (Intel and AMD) IOMMU support */
262 	void		*devi_iommu;
263 
264 	/* IOMMU handle */
265 	iommulib_handle_t	devi_iommulib_handle;
266 
267 	/* Generic callback mechanism */
268 	ddi_cb_t	*devi_cb_p;
269 
270 	/* ndi 'flavors' */
271 	ndi_flavor_t	devi_flavor;		/* flavor assigned by parent */
272 	ndi_flavor_t	devi_flavorv_n;		/* number of child-flavors */
273 	void		**devi_flavorv;		/* child-flavor specific data */
274 
275 	/* Owned by hotplug framework */
276 	struct ddi_hp_cn_handle *devi_hp_hdlp;   /* hotplug handle list */
277 
278 	struct in_node  *devi_in_node; /* pointer to devinfo node's in_node_t */
279 
280 	/* detach event data */
281 	char	*devi_ev_path;
282 	int	devi_ev_instance;
283 };
284 
285 #define	DEVI(dev_info_type)	((struct dev_info *)(dev_info_type))
286 
287 /*
288  * NB: The 'name' field, for compatibility with old code (both existing
289  * device drivers and userland code), is now defined as the name used
290  * to bind the node to a device driver, and not the device node name.
291  * If the device node name does not define a binding to a device driver,
292  * and the framework uses a different algorithm to create the binding to
293  * the driver, the node name and binding name will be different.
294  *
295  * Note that this implies that the node name plus instance number does
296  * NOT create a unique driver id; only the binding name plus instance
297  * number creates a unique driver id.
298  *
299  * New code should not use 'devi_name'; use 'devi_binding_name' or
300  * 'devi_node_name' and/or the routines that access those fields.
301  */
302 
303 #define	devi_name devi_binding_name
304 
305 /*
306  * DDI_CF1, DDI_CF2 and DDI_DRV_UNLOADED are obsolete. They are kept
307  * around to allow legacy drivers to to compile.
308  */
309 #define	DDI_CF1(devi)		(DEVI(devi)->devi_addr != NULL)
310 #define	DDI_CF2(devi)		(DEVI(devi)->devi_ops != NULL)
311 #define	DDI_DRV_UNLOADED(devi)	(DEVI(devi)->devi_ops == &mod_nodev_ops)
312 
313 /*
314  * The device state flags (devi_state) contains information regarding
315  * the state of the device (Online/Offline/Down).  For bus nexus
316  * devices, the device state also contains state information regarding
317  * the state of the bus represented by this nexus node.
318  *
319  * Device state information is stored in bits [0-7], bus state in bits
320  * [8-15].
321  *
322  * NOTE: all devi_state updates should be protected by devi_lock.
323  */
324 #define	DEVI_DEVICE_OFFLINE	0x00000001
325 #define	DEVI_DEVICE_DOWN	0x00000002
326 #define	DEVI_DEVICE_DEGRADED	0x00000004
327 #define	DEVI_DEVICE_REMOVED	0x00000008 /* hardware removed */
328 
329 #define	DEVI_BUS_QUIESCED	0x00000100
330 #define	DEVI_BUS_DOWN		0x00000200
331 #define	DEVI_NDI_CONFIG		0x00000400 /* perform config when attaching */
332 
333 #define	DEVI_S_ATTACHING	0x00010000
334 #define	DEVI_S_DETACHING	0x00020000
335 #define	DEVI_S_ONLINING		0x00040000
336 #define	DEVI_S_OFFLINING	0x00080000
337 
338 #define	DEVI_S_INVOKING_DACF	0x00100000 /* busy invoking a dacf task */
339 
340 #define	DEVI_S_UNBOUND		0x00200000
341 #define	DEVI_S_REPORT		0x08000000 /* report status change */
342 
343 #define	DEVI_S_EVADD		0x10000000 /* state of devfs event */
344 #define	DEVI_S_EVREMOVE		0x20000000 /* state of devfs event */
345 #define	DEVI_S_NEED_RESET	0x40000000 /* devo_reset should be called */
346 
347 /*
348  * Device state macros.
349  * o All SET/CLR/DONE users must protect context with devi_lock.
350  * o DEVI_SET_DEVICE_ONLINE users must do his own DEVI_SET_REPORT.
351  * o DEVI_SET_DEVICE_{DOWN|DEGRADED|UP} should only be used when !OFFLINE.
352  * o DEVI_SET_DEVICE_UP clears DOWN and DEGRADED.
353  */
354 #define	DEVI_IS_DEVICE_OFFLINE(dip)					\
355 	((DEVI(dip)->devi_state & DEVI_DEVICE_OFFLINE) == DEVI_DEVICE_OFFLINE)
356 
357 #define	DEVI_SET_DEVICE_ONLINE(dip)	{				\
358 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
359 	if (DEVI(dip)->devi_state & DEVI_DEVICE_DEGRADED) {		\
360 		mutex_exit(&DEVI(dip)->devi_lock);			\
361 		e_ddi_undegrade_finalize(dip);				\
362 		mutex_enter(&DEVI(dip)->devi_lock);			\
363 	}								\
364 	/* setting ONLINE clears DOWN, DEGRADED, OFFLINE */		\
365 	DEVI(dip)->devi_state &= ~(DEVI_DEVICE_DOWN |			\
366 	    DEVI_DEVICE_DEGRADED | DEVI_DEVICE_OFFLINE);		\
367 	}
368 
369 #define	DEVI_SET_DEVICE_OFFLINE(dip)	{				\
370 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
371 	DEVI(dip)->devi_state |= (DEVI_DEVICE_OFFLINE | DEVI_S_REPORT);	\
372 	}
373 
374 #define	DEVI_IS_DEVICE_DOWN(dip)					\
375 	((DEVI(dip)->devi_state & DEVI_DEVICE_DOWN) == DEVI_DEVICE_DOWN)
376 
377 #define	DEVI_SET_DEVICE_DOWN(dip)	{				\
378 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
379 	ASSERT(!DEVI_IS_DEVICE_OFFLINE(dip));				\
380 	DEVI(dip)->devi_state |= (DEVI_DEVICE_DOWN | DEVI_S_REPORT);	\
381 	}
382 
383 #define	DEVI_IS_DEVICE_DEGRADED(dip)					\
384 	((DEVI(dip)->devi_state &					\
385 	    (DEVI_DEVICE_DEGRADED|DEVI_DEVICE_DOWN)) == DEVI_DEVICE_DEGRADED)
386 
387 #define	DEVI_SET_DEVICE_DEGRADED(dip)	{				\
388 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
389 	ASSERT(!DEVI_IS_DEVICE_OFFLINE(dip));				\
390 	mutex_exit(&DEVI(dip)->devi_lock);				\
391 	e_ddi_degrade_finalize(dip);					\
392 	mutex_enter(&DEVI(dip)->devi_lock);				\
393 	DEVI(dip)->devi_state |= (DEVI_DEVICE_DEGRADED | DEVI_S_REPORT); \
394 	}
395 
396 #define	DEVI_SET_DEVICE_UP(dip)		{				\
397 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
398 	ASSERT(!DEVI_IS_DEVICE_OFFLINE(dip));				\
399 	if (DEVI(dip)->devi_state & DEVI_DEVICE_DEGRADED) {		\
400 		mutex_exit(&DEVI(dip)->devi_lock);			\
401 		e_ddi_undegrade_finalize(dip);				\
402 		mutex_enter(&DEVI(dip)->devi_lock);			\
403 	}								\
404 	DEVI(dip)->devi_state &= ~(DEVI_DEVICE_DEGRADED | DEVI_DEVICE_DOWN); \
405 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
406 	}
407 
408 /* Device removal and insertion */
409 #define	DEVI_IS_DEVICE_REMOVED(dip)					\
410 	((DEVI(dip)->devi_state & DEVI_DEVICE_REMOVED) == DEVI_DEVICE_REMOVED)
411 
412 #define	DEVI_SET_DEVICE_REMOVED(dip)	{				\
413 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
414 	DEVI(dip)->devi_state |= DEVI_DEVICE_REMOVED | DEVI_S_REPORT;	\
415 	}
416 
417 #define	DEVI_SET_DEVICE_REINSERTED(dip)	{				\
418 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
419 	DEVI(dip)->devi_state &= ~DEVI_DEVICE_REMOVED;			\
420 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
421 	}
422 
423 /* Bus state change macros */
424 #define	DEVI_IS_BUS_QUIESCED(dip)					\
425 	((DEVI(dip)->devi_state & DEVI_BUS_QUIESCED) == DEVI_BUS_QUIESCED)
426 
427 #define	DEVI_SET_BUS_ACTIVE(dip)	{				\
428 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
429 	DEVI(dip)->devi_state &= ~DEVI_BUS_QUIESCED;			\
430 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
431 	}
432 
433 #define	DEVI_SET_BUS_QUIESCE(dip)	{				\
434 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
435 	DEVI(dip)->devi_state |= (DEVI_BUS_QUIESCED | DEVI_S_REPORT);	\
436 	}
437 
438 #define	DEVI_IS_BUS_DOWN(dip)						\
439 	((DEVI(dip)->devi_state & DEVI_BUS_DOWN) == DEVI_BUS_DOWN)
440 
441 #define	DEVI_SET_BUS_UP(dip)		{				\
442 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
443 	DEVI(dip)->devi_state &= ~DEVI_BUS_DOWN;			\
444 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
445 	}
446 
447 #define	DEVI_SET_BUS_DOWN(dip)		{				\
448 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
449 	DEVI(dip)->devi_state |= (DEVI_BUS_DOWN | DEVI_S_REPORT);	\
450 	}
451 
452 /* Status change report needed */
453 #define	DEVI_NEED_REPORT(dip)						\
454 	((DEVI(dip)->devi_state & DEVI_S_REPORT) == DEVI_S_REPORT)
455 
456 #define	DEVI_SET_REPORT(dip)		{				\
457 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
458 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
459 	}
460 
461 #define	DEVI_REPORT_DONE(dip)		{				\
462 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
463 	DEVI(dip)->devi_state &= ~DEVI_S_REPORT;			\
464 	}
465 
466 /* Do an NDI_CONFIG for its children */
467 #define	DEVI_NEED_NDI_CONFIG(dip)					\
468 	((DEVI(dip)->devi_state & DEVI_NDI_CONFIG) == DEVI_NDI_CONFIG)
469 
470 #define	DEVI_SET_NDI_CONFIG(dip)	{				\
471 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
472 	DEVI(dip)->devi_state |= DEVI_NDI_CONFIG;			\
473 	}
474 
475 #define	DEVI_CLR_NDI_CONFIG(dip)	{				\
476 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
477 	DEVI(dip)->devi_state &= ~DEVI_NDI_CONFIG;			\
478 	}
479 
480 /* Attaching or detaching state */
481 #define	DEVI_IS_ATTACHING(dip)						\
482 	((DEVI(dip)->devi_state & DEVI_S_ATTACHING) == DEVI_S_ATTACHING)
483 
484 #define	DEVI_SET_ATTACHING(dip)		{				\
485 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
486 	DEVI(dip)->devi_state |= DEVI_S_ATTACHING;			\
487 	}
488 
489 #define	DEVI_CLR_ATTACHING(dip)		{				\
490 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
491 	DEVI(dip)->devi_state &= ~DEVI_S_ATTACHING;			\
492 	}
493 
494 #define	DEVI_IS_DETACHING(dip)						\
495 	((DEVI(dip)->devi_state & DEVI_S_DETACHING) == DEVI_S_DETACHING)
496 
497 #define	DEVI_SET_DETACHING(dip)		{				\
498 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
499 	DEVI(dip)->devi_state |= DEVI_S_DETACHING;			\
500 	}
501 
502 #define	DEVI_CLR_DETACHING(dip)		{				\
503 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
504 	DEVI(dip)->devi_state &= ~DEVI_S_DETACHING;			\
505 	}
506 
507 /* Onlining or offlining state */
508 #define	DEVI_IS_ONLINING(dip)						\
509 	((DEVI(dip)->devi_state & DEVI_S_ONLINING) == DEVI_S_ONLINING)
510 
511 #define	DEVI_SET_ONLINING(dip)		{				\
512 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
513 	DEVI(dip)->devi_state |= DEVI_S_ONLINING;			\
514 	}
515 
516 #define	DEVI_CLR_ONLINING(dip)		{				\
517 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
518 	DEVI(dip)->devi_state &= ~DEVI_S_ONLINING;			\
519 	}
520 
521 #define	DEVI_IS_OFFLINING(dip)						\
522 	((DEVI(dip)->devi_state & DEVI_S_OFFLINING) == DEVI_S_OFFLINING)
523 
524 #define	DEVI_SET_OFFLINING(dip)		{				\
525 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
526 	DEVI(dip)->devi_state |= DEVI_S_OFFLINING;			\
527 	}
528 
529 #define	DEVI_CLR_OFFLINING(dip)		{				\
530 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
531 	DEVI(dip)->devi_state &= ~DEVI_S_OFFLINING;			\
532 	}
533 
534 #define	DEVI_IS_IN_RECONFIG(dip)					\
535 	(DEVI(dip)->devi_state & (DEVI_S_OFFLINING | DEVI_S_ONLINING))
536 
537 /* Busy invoking a dacf task against this node */
538 #define	DEVI_IS_INVOKING_DACF(dip)					\
539 	((DEVI(dip)->devi_state & DEVI_S_INVOKING_DACF) == DEVI_S_INVOKING_DACF)
540 
541 #define	DEVI_SET_INVOKING_DACF(dip)	{				\
542 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
543 	DEVI(dip)->devi_state |= DEVI_S_INVOKING_DACF;			\
544 	}
545 
546 #define	DEVI_CLR_INVOKING_DACF(dip)	{				\
547 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
548 	DEVI(dip)->devi_state &= ~DEVI_S_INVOKING_DACF;			\
549 	}
550 
551 /* Events for add/remove */
552 #define	DEVI_EVADD(dip)							\
553 	((DEVI(dip)->devi_state & DEVI_S_EVADD) == DEVI_S_EVADD)
554 
555 #define	DEVI_SET_EVADD(dip)		{				\
556 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
557 	DEVI(dip)->devi_state &= ~DEVI_S_EVREMOVE;			\
558 	DEVI(dip)->devi_state |= DEVI_S_EVADD;				\
559 	}
560 
561 #define	DEVI_EVREMOVE(dip)						\
562 	((DEVI(dip)->devi_state & DEVI_S_EVREMOVE) == DEVI_S_EVREMOVE)
563 
564 #define	DEVI_SET_EVREMOVE(dip)		{				\
565 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
566 	DEVI(dip)->devi_state &= ~DEVI_S_EVADD;				\
567 	DEVI(dip)->devi_state |= DEVI_S_EVREMOVE;			\
568 	}
569 
570 #define	DEVI_SET_EVUNINIT(dip)		{				\
571 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
572 	DEVI(dip)->devi_state &= ~(DEVI_S_EVADD | DEVI_S_EVREMOVE);	\
573 	}
574 
575 /* Need to call the devo_reset entry point for this device at shutdown */
576 #define	DEVI_NEED_RESET(dip)						\
577 	((DEVI(dip)->devi_state & DEVI_S_NEED_RESET) == DEVI_S_NEED_RESET)
578 
579 #define	DEVI_SET_NEED_RESET(dip)	{				\
580 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
581 	DEVI(dip)->devi_state |= DEVI_S_NEED_RESET;			\
582 	}
583 
584 #define	DEVI_CLR_NEED_RESET(dip)	{				\
585 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
586 	DEVI(dip)->devi_state &= ~DEVI_S_NEED_RESET;			\
587 	}
588 
589 /*
590  * devi_flags bits
591  *
592  * NOTE: all devi_state updates should be protected by devi_lock.
593  */
594 #define	DEVI_BUSY		0x00000001 /* busy configuring children */
595 #define	DEVI_MADE_CHILDREN	0x00000002 /* children made from specs */
596 #define	DEVI_ATTACHED_CHILDREN	0x00000004 /* attached all existing children */
597 #define	DEVI_BRANCH_HELD	0x00000008 /* branch rooted at this dip held */
598 #define	DEVI_NO_BIND		0x00000010 /* prevent driver binding */
599 #define	DEVI_REGISTERED_DEVID	0x00000020 /* device registered a devid */
600 #define	DEVI_PHCI_SIGNALS_VHCI	0x00000040 /* pHCI ndi_devi_exit signals vHCI */
601 #define	DEVI_REBIND		0x00000080 /* post initchild driver rebind */
602 #define	DEVI_RETIRED		0x00000100 /* device is retired */
603 #define	DEVI_RETIRING		0x00000200 /* being evaluated for retire */
604 #define	DEVI_R_CONSTRAINT	0x00000400 /* constraints have been applied  */
605 #define	DEVI_R_BLOCKED		0x00000800 /* constraints block retire  */
606 #define	DEVI_CT_NOP		0x00001000 /* NOP contract event occurred */
607 #define	DEVI_PCI_DEVICE		0x00002000 /* dip is PCI */
608 
609 #define	DEVI_BUSY_CHANGING(dip)	(DEVI(dip)->devi_flags & DEVI_BUSY)
610 #define	DEVI_BUSY_OWNED(dip)	(DEVI_BUSY_CHANGING(dip) &&	\
611 	((DEVI(dip))->devi_busy_thread == curthread))
612 
613 #define	DEVI_IS_PCI(dip)	(DEVI(dip)->devi_flags & DEVI_PCI_DEVICE)
614 #define	DEVI_SET_PCI(dip)	(DEVI(dip)->devi_flags |= (DEVI_PCI_DEVICE))
615 
616 char	*i_ddi_devi_class(dev_info_t *);
617 int	i_ddi_set_devi_class(dev_info_t *, char *, int);
618 
619 /*
620  * This structure represents one piece of bus space occupied by a given
621  * device. It is used in an array for devices with multiple address windows.
622  */
623 struct regspec {
624 	uint_t regspec_bustype;		/* cookie for bus type it's on */
625 	uint_t regspec_addr;		/* address of reg relative to bus */
626 	uint_t regspec_size;		/* size of this register set */
627 };
628 
629 /*
630  * This structure represents one piece of nexus bus space.
631  * It is used in an array for nexi with multiple bus spaces
632  * to define the childs offsets in the parents bus space.
633  */
634 struct rangespec {
635 	uint_t rng_cbustype;		/* Child's address, hi order */
636 	uint_t rng_coffset;		/* Child's address, lo order */
637 	uint_t rng_bustype;		/* Parent's address, hi order */
638 	uint_t rng_offset;		/* Parent's address, lo order */
639 	uint_t rng_size;		/* size of space for this entry */
640 };
641 
642 #ifdef _KERNEL
643 
644 typedef enum {
645 	DDI_PRE = 0,
646 	DDI_POST = 1
647 } ddi_pre_post_t;
648 
649 /*
650  * This structure represents notification of a child attach event
651  * These could both be the same if attach/detach commands were in the
652  * same name space.
653  * Note that the target dip is passed as an arg already.
654  */
655 struct attachspec {
656 	ddi_attach_cmd_t cmd;	/* type of event */
657 	ddi_pre_post_t	when;	/* one of DDI_PRE or DDI_POST */
658 	dev_info_t	*pdip;	/* parent of attaching node */
659 	int		result;	/* result of attach op (post command only) */
660 };
661 
662 /*
663  * This structure represents notification of a child detach event
664  * Note that the target dip is passed as an arg already.
665  */
666 struct detachspec {
667 	ddi_detach_cmd_t cmd;	/* type of event */
668 	ddi_pre_post_t	when;	/* one of DDI_PRE or DDI_POST */
669 	dev_info_t	*pdip;	/* parent of detaching node */
670 	int		result;	/* result of detach op (post command only) */
671 };
672 
673 #endif /* _KERNEL */
674 
675 typedef enum {
676 	DDM_MINOR = 0,
677 	DDM_ALIAS,
678 	DDM_DEFAULT,
679 	DDM_INTERNAL_PATH
680 } ddi_minor_type;
681 
682 /* implementation flags for driver specified device access control */
683 #define	DM_NO_FSPERM	0x1
684 
685 struct devplcy;
686 
687 struct ddi_minor {
688 	char		*name;		/* name of node */
689 	dev_t		dev;		/* device number */
690 	int		spec_type;	/* block or char */
691 	int		flags;		/* access flags */
692 	char		*node_type;	/* block, byte, serial, network */
693 	struct devplcy	*node_priv;	/* privilege for this minor */
694 	mode_t		priv_mode;	/* default apparent privilege mode */
695 };
696 
697 /*
698  * devi_node_attributes contains node attributes private to the
699  * ddi implementation. As a consumer, do not use these bit definitions
700  * directly, use the ndi functions that check for the existence of the
701  * specific node attributes.
702  *
703  * DDI_PERSISTENT indicates a 'persistent' node; one that is not
704  * automatically freed by the framework if the driver is unloaded
705  * or the driver fails to attach to this node.
706  *
707  * DDI_AUTO_ASSIGNED_NODEID indicates that the nodeid was auto-assigned
708  * by the framework and should be auto-freed if the node is removed.
709  *
710  * DDI_VHCI_NODE indicates that the node type is VHCI. This flag
711  * must be set by ndi_devi_config_vhci() routine only.
712  *
713  * DDI_HIDDEN_NODE indicates that the node should not show up in snapshots
714  * or in /devices.
715  *
716  * DDI_HOTPLUG_NODE indicates that the node created by nexus hotplug.
717  */
718 #define	DDI_PERSISTENT			0x01
719 #define	DDI_AUTO_ASSIGNED_NODEID	0x02
720 #define	DDI_VHCI_NODE			0x04
721 #define	DDI_HIDDEN_NODE			0x08
722 #define	DDI_HOTPLUG_NODE		0x10
723 
724 #define	DEVI_VHCI_NODE(dip)						\
725 	(DEVI(dip)->devi_node_attributes & DDI_VHCI_NODE)
726 
727 /*
728  * The ddi_minor_data structure gets filled in by ddi_create_minor_node.
729  * It then gets attached to the devinfo node as a property.
730  */
731 struct ddi_minor_data {
732 	struct ddi_minor_data *next;	/* next one in the chain */
733 	dev_info_t	*dip;		/* pointer to devinfo node */
734 	ddi_minor_type	type;		/* Following data type */
735 	struct ddi_minor d_minor;	/* Actual minor node data */
736 };
737 
738 #define	ddm_name	d_minor.name
739 #define	ddm_dev		d_minor.dev
740 #define	ddm_flags	d_minor.flags
741 #define	ddm_spec_type	d_minor.spec_type
742 #define	ddm_node_type	d_minor.node_type
743 #define	ddm_node_priv	d_minor.node_priv
744 #define	ddm_priv_mode	d_minor.priv_mode
745 
746 /*
747  * parent private data structure contains register, interrupt, property
748  * and range information.
749  */
750 struct ddi_parent_private_data {
751 	int par_nreg;			/* number of regs */
752 	struct regspec *par_reg;	/* array of regs */
753 	int par_nintr;			/* number of interrupts */
754 	struct intrspec *par_intr;	/* array of possible interrupts */
755 	int par_nrng;			/* number of ranges */
756 	struct rangespec *par_rng;	/* array of ranges */
757 };
758 #define	DEVI_PD(d)	\
759 	((struct ddi_parent_private_data *)DEVI((d))->devi_parent_data)
760 
761 #define	sparc_pd_getnreg(dev)		(DEVI_PD(dev)->par_nreg)
762 #define	sparc_pd_getnintr(dev)		(DEVI_PD(dev)->par_nintr)
763 #define	sparc_pd_getnrng(dev)		(DEVI_PD(dev)->par_nrng)
764 #define	sparc_pd_getreg(dev, n)		(&DEVI_PD(dev)->par_reg[(n)])
765 #define	sparc_pd_getintr(dev, n)	(&DEVI_PD(dev)->par_intr[(n)])
766 #define	sparc_pd_getrng(dev, n)		(&DEVI_PD(dev)->par_rng[(n)])
767 
768 #ifdef _KERNEL
769 /*
770  * This data structure is private to the indexed soft state allocator.
771  */
772 typedef struct i_ddi_soft_state {
773 	void		**array;	/* the array of pointers */
774 	kmutex_t	lock;		/* serialize access to this struct */
775 	size_t		size;		/* how many bytes per state struct */
776 	size_t		n_items;	/* how many structs herein */
777 	struct i_ddi_soft_state *next;	/* 'dirty' elements */
778 } i_ddi_soft_state;
779 
780 /*
781  * This data structure is private to the stringhashed soft state allocator.
782  */
783 typedef struct i_ddi_soft_state_bystr {
784 	size_t		ss_size;	/* how many bytes per state struct */
785 	mod_hash_t	*ss_mod_hash;	/* hash implementation */
786 } i_ddi_soft_state_bystr;
787 
788 /*
789  * This data structure is private to the ddi_strid_* implementation
790  */
791 typedef struct i_ddi_strid {
792 	size_t		strid_chunksz;
793 	size_t		strid_spacesz;
794 	id_space_t	*strid_space;
795 	mod_hash_t	*strid_byid;
796 	mod_hash_t	*strid_bystr;
797 } i_ddi_strid;
798 #endif /* _KERNEL */
799 
800 /*
801  * Solaris DDI DMA implementation structure and function definitions.
802  *
803  * Note: no callers of DDI functions must depend upon data structures
804  * declared below. They are not guaranteed to remain constant.
805  */
806 
807 /*
808  * Implementation DMA mapping structure.
809  *
810  * The publicly visible ddi_dma_req structure is filled
811  * in by a caller that wishes to map a memory object
812  * for DMA. Internal to this implementation of the public
813  * DDI DMA functions this request structure is put together
814  * with bus nexus specific functions that have additional
815  * information and constraints as to how to go about doing
816  * the requested mapping function
817  *
818  * In this implementation, some of the information from the
819  * original requester is retained throughout the lifetime
820  * of the I/O mapping being active.
821  */
822 
823 /*
824  * This is the implementation specific description
825  * of how we've mapped an object for DMA.
826  */
827 #if defined(__sparc)
828 typedef struct ddi_dma_impl {
829 	/*
830 	 * DMA mapping information
831 	 */
832 	ulong_t	dmai_mapping;	/* mapping cookie */
833 
834 	/*
835 	 * Size of the current mapping, in bytes.
836 	 *
837 	 * Note that this is distinct from the size of the object being mapped
838 	 * for DVMA. We might have only a portion of the object mapped at any
839 	 * given point in time.
840 	 */
841 	uint_t	dmai_size;
842 
843 	/*
844 	 * Offset, in bytes, into object that is currently mapped.
845 	 */
846 	off_t	dmai_offset;
847 
848 	/*
849 	 * Information gathered from the original DMA mapping
850 	 * request and saved for the lifetime of the mapping.
851 	 */
852 	uint_t		dmai_minxfer;
853 	uint_t		dmai_burstsizes;
854 	uint_t		dmai_ndvmapages;
855 	uint_t		dmai_pool;	/* cached DVMA space */
856 	uint_t		dmai_rflags;	/* requester's flags + ours */
857 	uint_t		dmai_inuse;	/* active handle? */
858 	uint_t		dmai_nwin;
859 	uint_t		dmai_winsize;
860 	caddr_t		dmai_nexus_private;
861 	void		*dmai_iopte;
862 	uint_t		*dmai_sbi;
863 	void		*dmai_minfo;	/* random mapping information */
864 	dev_info_t	*dmai_rdip;	/* original requester's dev_info_t */
865 	ddi_dma_obj_t	dmai_object;	/* requester's object */
866 	ddi_dma_attr_t	dmai_attr;	/* DMA attributes */
867 	ddi_dma_cookie_t *dmai_cookie;	/* pointer to first DMA cookie */
868 
869 	int		(*dmai_fault_check)(struct ddi_dma_impl *handle);
870 	void		(*dmai_fault_notify)(struct ddi_dma_impl *handle);
871 	int		dmai_fault;
872 	ndi_err_t	dmai_error;
873 
874 } ddi_dma_impl_t;
875 
876 #elif defined(__x86)
877 
878 /*
879  * ddi_dma_impl portion that genunix (sunddi.c) depends on. x86 rootnex
880  * implementation specific state is in dmai_private.
881  */
882 typedef struct ddi_dma_impl {
883 	ddi_dma_cookie_t *dmai_cookie; /* array of DMA cookies */
884 	void		*dmai_private;
885 
886 	/*
887 	 * Information gathered from the original dma mapping
888 	 * request and saved for the lifetime of the mapping.
889 	 */
890 	uint_t		dmai_minxfer;
891 	uint_t		dmai_burstsizes;
892 	uint_t		dmai_rflags;	/* requester's flags + ours */
893 	int		dmai_nwin;
894 	dev_info_t	*dmai_rdip;	/* original requester's dev_info_t */
895 
896 	ddi_dma_attr_t	dmai_attr;	/* DMA attributes */
897 
898 	int		(*dmai_fault_check)(struct ddi_dma_impl *handle);
899 	void		(*dmai_fault_notify)(struct ddi_dma_impl *handle);
900 	int		dmai_fault;
901 	ndi_err_t	dmai_error;
902 } ddi_dma_impl_t;
903 
904 #else
905 #error "struct ddi_dma_impl not defined for this architecture"
906 #endif  /* defined(__sparc) */
907 
908 /*
909  * For now DMA segments share state with the DMA handle
910  */
911 typedef ddi_dma_impl_t ddi_dma_seg_impl_t;
912 
913 /*
914  * These flags use reserved bits from the dma request flags.
915  *
916  * A note about the DMP_NOSYNC flags: the root nexus will
917  * set these as it sees best. If an intermediate nexus
918  * actually needs these operations, then during the unwind
919  * from the call to ddi_dma_bind, the nexus driver *must*
920  * clear the appropriate flag(s). This is because, as an
921  * optimization, ddi_dma_sync(9F) looks at these flags before
922  * deciding to spend the time going back up the tree.
923  */
924 
925 #define	_DMCM1	DDI_DMA_RDWR|DDI_DMA_REDZONE|DDI_DMA_PARTIAL
926 #define	_DMCM2	DDI_DMA_CONSISTENT|DMP_VMEREQ
927 #define	DMP_DDIFLAGS	(_DMCM1|_DMCM2)
928 #define	DMP_SHADOW	0x20
929 #define	DMP_LKIOPB	0x40
930 #define	DMP_LKSYSV	0x80
931 #define	DMP_IOCACHE	0x100
932 #define	DMP_USEHAT	0x200
933 #define	DMP_PHYSADDR	0x400
934 #define	DMP_INVALID	0x800
935 #define	DMP_NOLIMIT	0x1000
936 #define	DMP_VMEREQ	0x10000000
937 #define	DMP_BYPASSNEXUS	0x20000000
938 #define	DMP_NODEVSYNC	0x40000000
939 #define	DMP_NOCPUSYNC	0x80000000
940 #define	DMP_NOSYNC	(DMP_NODEVSYNC|DMP_NOCPUSYNC)
941 
942 /*
943  * In order to complete a device to device mapping that
944  * has percolated as high as an IU nexus (gone that high
945  * because the DMA request is a VADDR type), we define
946  * structure to use with the DDI_CTLOPS_DMAPMAPC request
947  * that re-traverses the request tree to finish the
948  * DMA 'mapping' for a device.
949  */
950 struct dma_phys_mapc {
951 	struct ddi_dma_req *dma_req;	/* original request */
952 	ddi_dma_impl_t *mp;		/* current handle, or none */
953 	int nptes;			/* number of ptes */
954 	void *ptes;			/* ptes already read */
955 };
956 
957 #define	MAXCALLBACK		20
958 
959 /*
960  * Callback definitions
961  */
962 struct ddi_callback {
963 	struct ddi_callback	*c_nfree;
964 	struct ddi_callback	*c_nlist;
965 	int			(*c_call)();
966 	int			c_count;
967 	caddr_t			c_arg;
968 	size_t			c_size;
969 };
970 
971 /*
972  * Pure dynamic property declaration. A pure dynamic property is a property
973  * for which a driver's prop_op(9E) implementation will return a value on
974  * demand, but the property name does not exist on a property list (global,
975  * driver, system, or hardware) - the person asking for the value must know
976  * the name and type information.
977  *
978  * For a pure dynamic property to show up in a di_init() devinfo shapshot, the
979  * devinfo driver must know name and type. The i_ddi_prop_dyn_t mechanism
980  * allows a driver to define an array of the name/type information of its
981  * dynamic properties. When a driver declares its dynamic properties in a
982  * i_ddi_prop_dyn_t array, and registers that array using
983  * i_ddi_prop_dyn_driver_set() the devinfo driver has sufficient information
984  * to represent the properties in a snapshot - calling the driver's
985  * prop_op(9E) to obtain values.
986  *
987  * The last element of a i_ddi_prop_dyn_t is detected via a NULL dp_name value.
988  *
989  * A pure dynamic property name associated with a minor_node/dev_t should be
990  * defined with a dp_spec_type of S_IFCHR or S_IFBLK, as appropriate.  The
991  * driver's prop_op(9E) entry point will be called for all
992  * ddi_create_minor_node(9F) nodes of the specified spec_type. For a driver
993  * where not all minor_node/dev_t combinations support the same named
994  * properties, it is the responsibility of the prop_op(9E) implementation to
995  * sort out what combinations are appropriate.
996  *
997  * A pure dynamic property of a devinfo node should be defined with a
998  * dp_spec_type of 0.
999  *
1000  * NB: Public DDI property interfaces no longer support pure dynamic
1001  * properties, but they are still still used.  A prime example is the cmlb
1002  * implementation of size(9P) properties. Using pure dynamic properties
1003  * reduces the space required to maintain per-partition information. Since
1004  * there are no public interfaces to create pure dynamic properties,
1005  * the i_ddi_prop_dyn_t mechanism should remain private.
1006  */
1007 typedef struct i_ddi_prop_dyn {
1008 	char	*dp_name;		/* name of dynamic property */
1009 	int	dp_type;		/* DDI_PROP_TYPE_ of property */
1010 	int	dp_spec_type;		/* 0, S_IFCHR, S_IFBLK */
1011 } i_ddi_prop_dyn_t;
1012 void			i_ddi_prop_dyn_driver_set(dev_info_t *,
1013 			    i_ddi_prop_dyn_t *);
1014 i_ddi_prop_dyn_t	*i_ddi_prop_dyn_driver_get(dev_info_t *);
1015 void			i_ddi_prop_dyn_parent_set(dev_info_t *,
1016 			    i_ddi_prop_dyn_t *);
1017 i_ddi_prop_dyn_t	*i_ddi_prop_dyn_parent_get(dev_info_t *);
1018 void			i_ddi_prop_dyn_cache_invalidate(dev_info_t *,
1019 			    i_ddi_prop_dyn_t *);
1020 
1021 /*
1022  * Device id - Internal definition.
1023  */
1024 #define	DEVID_MAGIC_MSB		0x69
1025 #define	DEVID_MAGIC_LSB		0x64
1026 #define	DEVID_REV_MSB		0x00
1027 #define	DEVID_REV_LSB		0x01
1028 #define	DEVID_HINT_SIZE		4
1029 
1030 typedef struct impl_devid {
1031 	uchar_t	did_magic_hi;			/* device id magic # (msb) */
1032 	uchar_t	did_magic_lo;			/* device id magic # (lsb) */
1033 	uchar_t	did_rev_hi;			/* device id revision # (msb) */
1034 	uchar_t	did_rev_lo;			/* device id revision # (lsb) */
1035 	uchar_t	did_type_hi;			/* device id type (msb) */
1036 	uchar_t	did_type_lo;			/* device id type (lsb) */
1037 	uchar_t	did_len_hi;			/* length of devid data (msb) */
1038 	uchar_t	did_len_lo;			/* length of devid data (lsb) */
1039 	char	did_driver[DEVID_HINT_SIZE];	/* driver name - HINT */
1040 	char	did_id[1];			/* start of device id data */
1041 } impl_devid_t;
1042 
1043 #define	DEVID_GETTYPE(devid)		((ushort_t) \
1044 					    (((devid)->did_type_hi << NBBY) + \
1045 					    (devid)->did_type_lo))
1046 
1047 #define	DEVID_FORMTYPE(devid, type)	(devid)->did_type_hi = hibyte((type)); \
1048 					(devid)->did_type_lo = lobyte((type));
1049 
1050 #define	DEVID_GETLEN(devid)		((ushort_t) \
1051 					    (((devid)->did_len_hi << NBBY) + \
1052 					    (devid)->did_len_lo))
1053 
1054 #define	DEVID_FORMLEN(devid, len)	(devid)->did_len_hi = hibyte((len)); \
1055 					(devid)->did_len_lo = lobyte((len));
1056 
1057 /*
1058  * Per PSARC/1995/352, a binary devid contains fields for <magic number>,
1059  * <revision>, <driver_hint>, <type>, <id_length>, and the <id> itself.
1060  * This proposal would encode the binary devid into a string consisting
1061  * of "<magic><revision>,<driver_hint>@<type><id>" as indicated below
1062  * (<id_length> is rederived from the length of the string
1063  * representation of the <id>):
1064  *
1065  *	<magic>		->"id"
1066  *
1067  *	<rev>		->"%d"	// "0" -> type of DEVID_NONE  "id0"
1068  *				// NOTE: PSARC/1995/352 <revision> is "1".
1069  *				// NOTE: support limited to 10 revisions
1070  *				//	in current implementation
1071  *
1072  *	<driver_hint>	->"%s"	// "sd"/"ssd"
1073  *				// NOTE: driver names limited to 4
1074  *				//	characters for <revision> "1"
1075  *
1076  *	<type>		->'w' |	// DEVID_SCSI3_WWN	<hex_id>
1077  *			'W' |	// DEVID_SCSI3_WWN	<ascii_id>
1078  *			't' |	// DEVID_SCSI3_VPD_T10	<hex_id>
1079  *			'T' |	// DEVID_SCSI3_VPD_T10	<ascii_id>
1080  *			'x' |	// DEVID_SCSI3_VPD_EUI	<hex_id>
1081  *			'X' |	// DEVID_SCSI3_VPD_EUI	<ascii_id>
1082  *			'n' |	// DEVID_SCSI3_VPD_NAA	<hex_id>
1083  *			'N' |	// DEVID_SCSI3_VPD_NAA	<ascii_id>
1084  *			's' |	// DEVID_SCSI_SERIAL	<hex_id>
1085  *			'S' |	// DEVID_SCSI_SERIAL	<ascii_id>
1086  *			'f' |	// DEVID_FAB		<hex_id>
1087  *			'F' |	// DEVID_FAB		<ascii_id>
1088  *			'e' |	// DEVID_ENCAP		<hex_id>
1089  *			'E' |	// DEVID_ENCAP		<ascii_id>
1090  *			'a' |	// DEVID_ATA_SERIAL	<hex_id>
1091  *			'A' |	// DEVID_ATA_SERIAL	<ascii_id>
1092  *			'u' |	// unknown		<hex_id>
1093  *			'U'	// unknown		<ascii_id>
1094  *				// NOTE:lower case -> <hex_id>
1095  *				//	upper case -> <ascii_id>
1096  *				// NOTE:this covers all types currently
1097  *				//	defined for <revision> 1.
1098  *				// NOTE:a <type> can be added
1099  *				//	without changing the <revision>.
1100  *
1101  *	<id>		-> <ascii_id> |	// <type> is upper case
1102  *			<hex_id>	// <type> is lower case
1103  *
1104  *	<ascii_id>	// only if all bytes of binary <id> field
1105  *			// are in the set:
1106  *			//	[A-Z][a-z][0-9]+-.= and space and 0x00
1107  *			// the encoded form is:
1108  *			//	[A-Z][a-z][0-9]+-.= and _ and ~
1109  *			//	NOTE: ' ' <=> '_', 0x00 <=> '~'
1110  *			// these sets are chosen to avoid shell
1111  *			// and conflicts with DDI node names.
1112  *
1113  *	<hex_id>	// if not <ascii_id>; each byte of binary
1114  *			// <id> maps a to 2 digit ascii hex
1115  *			// representation in the string.
1116  *
1117  * This encoding provides a meaningful correlation between the /devices
1118  * path and the devid string where possible.
1119  *
1120  *   Fibre:
1121  *	sbus@6,0/SUNW,socal@d,10000/sf@1,0/ssd@w21000020370bb488,0:c,raw
1122  *	id1,ssd@w20000020370bb488:c,raw
1123  *
1124  *   Copper:
1125  *	sbus@7,0/SUNW,fas@3,8800000/sd@a,0:c
1126  *	id1,sd@SIBM_____1XY210__________:c
1127  */
1128 /* determine if a byte of an id meets ASCII representation requirements */
1129 #define	DEVID_IDBYTE_ISASCII(b)		(				\
1130 	(((b) >= 'a') && ((b) <= 'z')) ||				\
1131 	(((b) >= 'A') && ((b) <= 'Z')) ||				\
1132 	(((b) >= '0') && ((b) <= '9')) ||				\
1133 	(b == '+') || (b == '-') || (b == '.') || (b == '=') ||		\
1134 	(b == ' ') || (b == 0x00))
1135 
1136 /* set type to lower case to indicate that the did_id field is ascii */
1137 #define	DEVID_TYPE_SETASCII(c)	(c - 0x20)	/* 'a' -> 'A' */
1138 
1139 /* determine from type if did_id field is binary or ascii */
1140 #define	DEVID_TYPE_ISASCII(c)	(((c) >= 'A') && ((c) <= 'Z'))
1141 
1142 /* convert type field from binary to ascii */
1143 #define	DEVID_TYPE_BINTOASCII(b)	(				\
1144 	((b) == DEVID_SCSI3_WWN)	? 'w' :				\
1145 	((b) == DEVID_SCSI3_VPD_T10)	? 't' :				\
1146 	((b) == DEVID_SCSI3_VPD_EUI)	? 'x' :				\
1147 	((b) == DEVID_SCSI3_VPD_NAA)	? 'n' :				\
1148 	((b) == DEVID_SCSI_SERIAL)	? 's' :				\
1149 	((b) == DEVID_FAB)		? 'f' :				\
1150 	((b) == DEVID_ENCAP)		? 'e' :				\
1151 	((b) == DEVID_ATA_SERIAL)	? 'a' :				\
1152 	'u')						/* unknown */
1153 
1154 /* convert type field from ascii to binary */
1155 #define	DEVID_TYPE_ASCIITOBIN(c)	(				\
1156 	(((c) == 'w') || ((c) == 'W'))	? DEVID_SCSI3_WWN :		\
1157 	(((c) == 't') || ((c) == 'T'))	? DEVID_SCSI3_VPD_T10 :		\
1158 	(((c) == 'x') || ((c) == 'X'))	? DEVID_SCSI3_VPD_EUI :		\
1159 	(((c) == 'n') || ((c) == 'N'))	? DEVID_SCSI3_VPD_NAA :		\
1160 	(((c) == 's') || ((c) == 'S'))	? DEVID_SCSI_SERIAL :		\
1161 	(((c) == 'f') || ((c) == 'F'))	? DEVID_FAB :			\
1162 	(((c) == 'e') || ((c) == 'E'))	? DEVID_ENCAP :			\
1163 	(((c) == 'a') || ((c) == 'A'))	? DEVID_ATA_SERIAL :		\
1164 	DEVID_MAXTYPE +1)				/* unknown */
1165 
1166 /* determine if the type should be forced to hex encoding (non-ascii) */
1167 #define	DEVID_TYPE_BIN_FORCEHEX(b) (	\
1168 	((b) == DEVID_SCSI3_WWN) ||	\
1169 	((b) == DEVID_SCSI3_VPD_EUI) ||	\
1170 	((b) == DEVID_SCSI3_VPD_NAA) ||	\
1171 	((b) == DEVID_FAB))
1172 
1173 /* determine if the type is from a scsi3 vpd */
1174 #define	IS_DEVID_SCSI3_VPD_TYPE(b) (	\
1175 	((b) == DEVID_SCSI3_VPD_T10) ||	\
1176 	((b) == DEVID_SCSI3_VPD_EUI) ||	\
1177 	((b) == DEVID_SCSI3_VPD_NAA))
1178 
1179 /* convert rev field from binary to ascii (only supports 10 revs) */
1180 #define	DEVID_REV_BINTOASCII(b) (b + '0')
1181 
1182 /* convert rev field from ascii to binary (only supports 10 revs) */
1183 #define	DEVID_REV_ASCIITOBIN(c) (c - '0')
1184 
1185 /* name of devid property */
1186 #define	DEVID_PROP_NAME	"devid"
1187 
1188 /*
1189  * prop_name used by pci_{save,restore}_config_regs()
1190  */
1191 #define	SAVED_CONFIG_REGS "pci-config-regs"
1192 #define	SAVED_CONFIG_REGS_MASK "pcie-config-regs-mask"
1193 #define	SAVED_CONFIG_REGS_CAPINFO "pci-cap-info"
1194 
1195 typedef struct pci_config_header_state {
1196 	uint16_t	chs_command;
1197 	uint8_t		chs_cache_line_size;
1198 	uint8_t		chs_latency_timer;
1199 	uint8_t		chs_header_type;
1200 	uint8_t		chs_sec_latency_timer;
1201 	uint8_t		chs_bridge_control;
1202 	uint32_t	chs_base0;
1203 	uint32_t	chs_base1;
1204 	uint32_t	chs_base2;
1205 	uint32_t	chs_base3;
1206 	uint32_t	chs_base4;
1207 	uint32_t	chs_base5;
1208 } pci_config_header_state_t;
1209 
1210 #ifdef _KERNEL
1211 
1212 typedef struct pci_cap_save_desc {
1213 	uint16_t	cap_offset;
1214 	uint16_t	cap_id;
1215 	uint32_t	cap_nregs;
1216 } pci_cap_save_desc_t;
1217 
1218 typedef struct pci_cap_entry {
1219 	uint16_t		cap_id;
1220 	uint16_t		cap_reg;
1221 	uint16_t		cap_mask;
1222 	uint32_t		cap_ndwords;
1223 	uint32_t (*cap_save_func)(ddi_acc_handle_t confhdl, uint16_t cap_ptr,
1224 	    uint32_t *regbuf, uint32_t ndwords);
1225 } pci_cap_entry_t;
1226 
1227 #endif /* _KERNEL */
1228 
1229 #ifdef	__cplusplus
1230 }
1231 #endif
1232 
1233 #endif	/* _SYS_DDI_IMPLDEFS_H */
1234