xref: /illumos-gate/usr/src/uts/common/sys/ddi_impldefs.h (revision 30165b7f6753bc3d48c52319bed7ec7b3ea36b3c)
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  * Copyright 2012 Garrett D'Amore <garrett@damore.org>.  All rights reserved.
24  * Copyright 2016 Joyent, Inc.
25  * Copyright (c) 2016 by Delphix. All rights reserved.
26  */
27 
28 #ifndef _SYS_DDI_IMPLDEFS_H
29 #define	_SYS_DDI_IMPLDEFS_H
30 
31 #include <sys/types.h>
32 #include <sys/param.h>
33 #include <sys/t_lock.h>
34 #include <sys/ddipropdefs.h>
35 #include <sys/devops.h>
36 #include <sys/autoconf.h>
37 #include <sys/mutex.h>
38 #include <vm/page.h>
39 #include <sys/dacf_impl.h>
40 #include <sys/ndifm.h>
41 #include <sys/epm.h>
42 #include <sys/ddidmareq.h>
43 #include <sys/ddi_intr.h>
44 #include <sys/ddi_hp.h>
45 #include <sys/ddi_hp_impl.h>
46 #include <sys/ddi_isa.h>
47 #include <sys/id_space.h>
48 #include <sys/modhash.h>
49 #include <sys/bitset.h>
50 
51 #ifdef	__cplusplus
52 extern "C" {
53 #endif
54 
55 /*
56  * The device id implementation has been switched to be based on properties.
57  * For compatibility with di_devid libdevinfo interface the following
58  * must be defined:
59  */
60 #define	DEVID_COMPATIBILITY	((ddi_devid_t)-1)
61 
62 /*
63  * Definitions for node class.
64  * DDI_NC_PROM: a node with a nodeid that may be used in a promif call.
65  * DDI_NC_PSEUDO: a software created node with a software assigned nodeid.
66  */
67 typedef enum {
68 	DDI_NC_PROM = 0,
69 	DDI_NC_PSEUDO
70 } ddi_node_class_t;
71 
72 /*
73  * Definitions for generic callback mechanism.
74  */
75 typedef enum {
76 	DDI_CB_INTR_ADD,		/* More available interrupts */
77 	DDI_CB_INTR_REMOVE		/* Fewer available interrupts */
78 } ddi_cb_action_t;
79 
80 typedef enum {
81 	DDI_CB_FLAG_INTR = 0x1		/* Driver is IRM aware */
82 } ddi_cb_flags_t;
83 
84 #define	DDI_CB_FLAG_VALID(f)	((f) & DDI_CB_FLAG_INTR)
85 
86 typedef int	(*ddi_cb_func_t)(dev_info_t *dip, ddi_cb_action_t action,
87 		    void *cbarg, void *arg1, void *arg2);
88 
89 typedef struct ddi_cb {
90 	uint64_t	cb_flags;
91 	dev_info_t	*cb_dip;
92 	ddi_cb_func_t	cb_func;
93 	void		*cb_arg1;
94 	void		*cb_arg2;
95 } ddi_cb_t;
96 
97 /*
98  * dev_info:	The main device information structure this is intended to be
99  *		opaque to drivers and drivers should use ddi functions to
100  *		access *all* driver accessible fields.
101  *
102  * devi_parent_data includes property lists (interrupts, registers, etc.)
103  * devi_driver_data includes whatever the driver wants to place there.
104  */
105 struct devinfo_audit;
106 
107 typedef struct devi_port {
108 	union {
109 		struct {
110 			uint32_t type;
111 			uint32_t pad;
112 		} port;
113 		uint64_t type64;
114 	} info;
115 	void	*priv_p;
116 } devi_port_t;
117 
118 typedef struct devi_bus_priv {
119 	devi_port_t port_up;
120 	devi_port_t port_down;
121 } devi_bus_priv_t;
122 
123 #if defined(__x86)
124 struct iommulib_unit;
125 typedef struct iommulib_unit *iommulib_handle_t;
126 struct iommulib_nex;
127 typedef struct iommulib_nex *iommulib_nexhandle_t;
128 #endif
129 
130 typedef uint8_t	ndi_flavor_t;
131 struct ddi_hp_cn_handle;
132 
133 struct in_node;
134 
135 struct dev_info  {
136 
137 	struct dev_info *devi_parent;	/* my parent node in tree	*/
138 	struct dev_info *devi_child;	/* my child list head		*/
139 	struct dev_info *devi_sibling;	/* next element on my level	*/
140 
141 	char	*devi_binding_name;	/* name used to bind driver:	*/
142 					/* shared storage, points to	*/
143 					/* devi_node_name, devi_compat_names */
144 					/* or devi_rebinding_name	*/
145 
146 	char	*devi_addr;		/* address part of name		*/
147 
148 	int	devi_nodeid;		/* device nodeid		*/
149 	int	devi_instance;		/* device instance number	*/
150 
151 	struct dev_ops *devi_ops;	/* driver operations		*/
152 
153 	void	*devi_parent_data;	/* parent private data		*/
154 	void	*devi_driver_data;	/* driver private data		*/
155 
156 	ddi_prop_t *devi_drv_prop_ptr;	/* head of driver prop list */
157 	ddi_prop_t *devi_sys_prop_ptr;	/* head of system prop list */
158 
159 	struct ddi_minor_data *devi_minor;	/* head of minor list */
160 	struct dev_info *devi_next;	/* Next instance of this device */
161 	kmutex_t devi_lock;		/* Protects per-devinfo data */
162 
163 	/* logical parents for busop primitives */
164 
165 	struct dev_info *devi_bus_map_fault;	/* bus_map_fault parent	 */
166 	void		*devi_obsolete;		/* obsolete placeholder */
167 	struct dev_info *devi_bus_dma_allochdl; /* bus_dma_newhdl parent */
168 	struct dev_info *devi_bus_dma_freehdl;  /* bus_dma_freehdl parent */
169 	struct dev_info *devi_bus_dma_bindhdl;  /* bus_dma_bindhdl parent */
170 	struct dev_info *devi_bus_dma_unbindhdl; /* bus_dma_unbindhdl parent */
171 	struct dev_info *devi_bus_dma_flush;    /* bus_dma_flush parent	 */
172 	struct dev_info *devi_bus_dma_win;	/* bus_dma_win parent	 */
173 	struct dev_info *devi_bus_dma_ctl;	/* bus_dma_ctl parent	 */
174 	struct dev_info	*devi_bus_ctl;		/* bus_ctl parent	 */
175 
176 	ddi_prop_t *devi_hw_prop_ptr;		/* head of hw prop list */
177 
178 	char	*devi_node_name;		/* The 'name' of the node */
179 	char	*devi_compat_names;		/* A list of driver names */
180 	size_t	devi_compat_length;		/* Size of compat_names */
181 
182 	int (*devi_bus_dma_bindfunc)(dev_info_t *, dev_info_t *,
183 	    ddi_dma_handle_t, struct ddi_dma_req *, ddi_dma_cookie_t *,
184 	    uint_t *);
185 	int (*devi_bus_dma_unbindfunc)(dev_info_t *, dev_info_t *,
186 	    ddi_dma_handle_t);
187 
188 	char		*devi_devid_str;	/* registered device id */
189 
190 	/*
191 	 * power management entries
192 	 * components exist even if the device is not currently power managed
193 	 */
194 	struct pm_info *devi_pm_info;		/* 0 => dev not power managed */
195 	uint_t		devi_pm_flags;		/* pm flags */
196 	int		devi_pm_num_components;	/* number of components */
197 	size_t		devi_pm_comp_size;	/* size of devi_components */
198 	struct pm_component *devi_pm_components; /* array of pm components */
199 	struct dev_info *devi_pm_ppm;		/* ppm attached to this one */
200 	void		*devi_pm_ppm_private;	/* for use by ppm driver */
201 	int		devi_pm_dev_thresh;	/* "device" threshold */
202 	uint_t		devi_pm_kidsupcnt;	/* # of kids powered up */
203 	struct pm_scan	*devi_pm_scan;		/* pm scan info */
204 	uint_t		devi_pm_noinvolpm;	/* # of descendents no-invol */
205 	uint_t		devi_pm_volpmd;		/* # of voluntarily pm'ed */
206 	kmutex_t	devi_pm_lock;		/* pm lock for state */
207 	kmutex_t	devi_pm_busy_lock;	/* for component busy count */
208 
209 	uint_t		devi_state;		/* device/bus state flags */
210 						/* see below for definitions */
211 	kcondvar_t	devi_cv;		/* cv */
212 	int		devi_ref;		/* reference count */
213 
214 	dacf_rsrvlist_t *devi_dacf_tasks;	/* dacf reservation queue */
215 
216 	ddi_node_class_t devi_node_class;	/* Node class */
217 	int		devi_node_attributes;	/* Node attributes: See below */
218 
219 	char		*devi_device_class;
220 
221 	/*
222 	 * New mpxio kernel hooks entries
223 	 */
224 	int		devi_mdi_component;	/* mpxio component type */
225 	void		*devi_mdi_client;	/* mpxio client information */
226 	void		*devi_mdi_xhci;		/* vhci/phci info */
227 
228 	ddi_prop_list_t	*devi_global_prop_list;	/* driver global properties */
229 	major_t		devi_major;		/* driver major number */
230 	ddi_node_state_t devi_node_state;	/* state of node */
231 	uint_t		devi_flags;		/* configuration flags */
232 	int		devi_circular;		/* for recursive operations */
233 	void		*devi_busy_thread;	/* thread operating on node */
234 	void		*devi_taskq;		/* hotplug taskq */
235 
236 	/* device driver statistical and audit info */
237 	struct devinfo_audit *devi_audit;		/* last state change */
238 
239 	/*
240 	 * FMA support for resource caches and error handlers
241 	 */
242 	struct i_ddi_fmhdl	*devi_fmhdl;
243 
244 	uint_t		devi_cpr_flags;
245 
246 	/* Owned by DDI interrupt framework */
247 	devinfo_intr_t	*devi_intr_p;
248 
249 	void		*devi_nex_pm;		/* nexus PM private */
250 
251 	char		*devi_addr_buf;		/* buffer for devi_addr */
252 
253 	char		*devi_rebinding_name;	/* binding_name of rebind */
254 
255 	/* For device contracts that have this dip's minor node as resource */
256 	kmutex_t	devi_ct_lock;		/* contract lock */
257 	kcondvar_t	devi_ct_cv;		/* contract cv */
258 	int		devi_ct_count;		/* # of outstanding responses */
259 	int		devi_ct_neg;		/* neg. occurred on dip */
260 	list_t		devi_ct;
261 
262 	/* owned by bus framework */
263 	devi_bus_priv_t	devi_bus;		/* bus private data */
264 
265 	/* Declarations of the pure dynamic properties to snapshot */
266 	struct i_ddi_prop_dyn	*devi_prop_dyn_driver;	/* prop_op */
267 	struct i_ddi_prop_dyn	*devi_prop_dyn_parent;	/* bus_prop_op */
268 
269 #if defined(__x86)
270 	/* For x86 (Intel and AMD) IOMMU support */
271 	void		*devi_iommu;
272 	iommulib_handle_t	devi_iommulib_handle;
273 	iommulib_nexhandle_t	devi_iommulib_nex_handle;
274 #endif
275 
276 	/* Generic callback mechanism */
277 	ddi_cb_t	*devi_cb_p;
278 
279 	/* ndi 'flavors' */
280 	ndi_flavor_t	devi_flavor;		/* flavor assigned by parent */
281 	ndi_flavor_t	devi_flavorv_n;		/* number of child-flavors */
282 	void		**devi_flavorv;		/* child-flavor specific data */
283 
284 	/* Owned by hotplug framework */
285 	struct ddi_hp_cn_handle *devi_hp_hdlp;   /* hotplug handle list */
286 
287 	struct in_node  *devi_in_node; /* pointer to devinfo node's in_node_t */
288 
289 	/* detach event data */
290 	char	*devi_ev_path;
291 	int	devi_ev_instance;
292 };
293 
294 #define	DEVI(dev_info_type)	((struct dev_info *)(dev_info_type))
295 
296 /*
297  * NB: The 'name' field, for compatibility with old code (both existing
298  * device drivers and userland code), is now defined as the name used
299  * to bind the node to a device driver, and not the device node name.
300  * If the device node name does not define a binding to a device driver,
301  * and the framework uses a different algorithm to create the binding to
302  * the driver, the node name and binding name will be different.
303  *
304  * Note that this implies that the node name plus instance number does
305  * NOT create a unique driver id; only the binding name plus instance
306  * number creates a unique driver id.
307  *
308  * New code should not use 'devi_name'; use 'devi_binding_name' or
309  * 'devi_node_name' and/or the routines that access those fields.
310  */
311 
312 #define	devi_name devi_binding_name
313 
314 /*
315  * DDI_CF1, DDI_CF2 and DDI_DRV_UNLOADED are obsolete. They are kept
316  * around to allow legacy drivers to to compile.
317  */
318 #define	DDI_CF1(devi)		(DEVI(devi)->devi_addr != NULL)
319 #define	DDI_CF2(devi)		(DEVI(devi)->devi_ops != NULL)
320 #define	DDI_DRV_UNLOADED(devi)	(DEVI(devi)->devi_ops == &mod_nodev_ops)
321 
322 /*
323  * The device state flags (devi_state) contains information regarding
324  * the state of the device (Online/Offline/Down).  For bus nexus
325  * devices, the device state also contains state information regarding
326  * the state of the bus represented by this nexus node.
327  *
328  * Device state information is stored in bits [0-7], bus state in bits
329  * [8-15].
330  *
331  * NOTE: all devi_state updates should be protected by devi_lock.
332  */
333 #define	DEVI_DEVICE_OFFLINE	0x00000001
334 #define	DEVI_DEVICE_DOWN	0x00000002
335 #define	DEVI_DEVICE_DEGRADED	0x00000004
336 #define	DEVI_DEVICE_REMOVED	0x00000008 /* hardware removed */
337 
338 #define	DEVI_BUS_QUIESCED	0x00000100
339 #define	DEVI_BUS_DOWN		0x00000200
340 #define	DEVI_NDI_CONFIG		0x00000400 /* perform config when attaching */
341 
342 #define	DEVI_S_ATTACHING	0x00010000
343 #define	DEVI_S_DETACHING	0x00020000
344 #define	DEVI_S_ONLINING		0x00040000
345 #define	DEVI_S_OFFLINING	0x00080000
346 
347 #define	DEVI_S_INVOKING_DACF	0x00100000 /* busy invoking a dacf task */
348 
349 #define	DEVI_S_UNBOUND		0x00200000
350 #define	DEVI_S_REPORT		0x08000000 /* report status change */
351 
352 #define	DEVI_S_EVADD		0x10000000 /* state of devfs event */
353 #define	DEVI_S_EVREMOVE		0x20000000 /* state of devfs event */
354 #define	DEVI_S_NEED_RESET	0x40000000 /* devo_reset should be called */
355 
356 /*
357  * Device state macros.
358  * o All SET/CLR/DONE users must protect context with devi_lock.
359  * o DEVI_SET_DEVICE_ONLINE users must do their own DEVI_SET_REPORT.
360  * o DEVI_SET_DEVICE_{DOWN|DEGRADED|UP} should only be used when !OFFLINE.
361  * o DEVI_SET_DEVICE_UP clears DOWN and DEGRADED.
362  */
363 #define	DEVI_IS_DEVICE_OFFLINE(dip)					\
364 	((DEVI(dip)->devi_state & DEVI_DEVICE_OFFLINE) == DEVI_DEVICE_OFFLINE)
365 
366 #define	DEVI_SET_DEVICE_ONLINE(dip)	{				\
367 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
368 	if (DEVI(dip)->devi_state & DEVI_DEVICE_DEGRADED) {		\
369 		mutex_exit(&DEVI(dip)->devi_lock);			\
370 		e_ddi_undegrade_finalize(dip);				\
371 		mutex_enter(&DEVI(dip)->devi_lock);			\
372 	}								\
373 	/* setting ONLINE clears DOWN, DEGRADED, OFFLINE */		\
374 	DEVI(dip)->devi_state &= ~(DEVI_DEVICE_DOWN |			\
375 	    DEVI_DEVICE_DEGRADED | DEVI_DEVICE_OFFLINE);		\
376 	}
377 
378 #define	DEVI_SET_DEVICE_OFFLINE(dip)	{				\
379 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
380 	DEVI(dip)->devi_state |= (DEVI_DEVICE_OFFLINE | DEVI_S_REPORT);	\
381 	}
382 
383 #define	DEVI_IS_DEVICE_DOWN(dip)					\
384 	((DEVI(dip)->devi_state & DEVI_DEVICE_DOWN) == DEVI_DEVICE_DOWN)
385 
386 #define	DEVI_SET_DEVICE_DOWN(dip)	{				\
387 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
388 	ASSERT(!DEVI_IS_DEVICE_OFFLINE(dip));				\
389 	DEVI(dip)->devi_state |= (DEVI_DEVICE_DOWN | DEVI_S_REPORT);	\
390 	}
391 
392 #define	DEVI_IS_DEVICE_DEGRADED(dip)					\
393 	((DEVI(dip)->devi_state &					\
394 	    (DEVI_DEVICE_DEGRADED|DEVI_DEVICE_DOWN)) == DEVI_DEVICE_DEGRADED)
395 
396 #define	DEVI_SET_DEVICE_DEGRADED(dip)	{				\
397 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
398 	ASSERT(!DEVI_IS_DEVICE_OFFLINE(dip));				\
399 	mutex_exit(&DEVI(dip)->devi_lock);				\
400 	e_ddi_degrade_finalize(dip);					\
401 	mutex_enter(&DEVI(dip)->devi_lock);				\
402 	DEVI(dip)->devi_state |= (DEVI_DEVICE_DEGRADED | DEVI_S_REPORT); \
403 	}
404 
405 #define	DEVI_SET_DEVICE_UP(dip)		{				\
406 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
407 	ASSERT(!DEVI_IS_DEVICE_OFFLINE(dip));				\
408 	if (DEVI(dip)->devi_state & DEVI_DEVICE_DEGRADED) {		\
409 		mutex_exit(&DEVI(dip)->devi_lock);			\
410 		e_ddi_undegrade_finalize(dip);				\
411 		mutex_enter(&DEVI(dip)->devi_lock);			\
412 	}								\
413 	DEVI(dip)->devi_state &= ~(DEVI_DEVICE_DEGRADED | DEVI_DEVICE_DOWN); \
414 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
415 	}
416 
417 /* Device removal and insertion */
418 #define	DEVI_IS_DEVICE_REMOVED(dip)					\
419 	((DEVI(dip)->devi_state & DEVI_DEVICE_REMOVED) == DEVI_DEVICE_REMOVED)
420 
421 #define	DEVI_SET_DEVICE_REMOVED(dip)	{				\
422 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
423 	DEVI(dip)->devi_state |= DEVI_DEVICE_REMOVED | DEVI_S_REPORT;	\
424 	}
425 
426 #define	DEVI_SET_DEVICE_REINSERTED(dip)	{				\
427 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
428 	DEVI(dip)->devi_state &= ~DEVI_DEVICE_REMOVED;			\
429 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
430 	}
431 
432 /* Bus state change macros */
433 #define	DEVI_IS_BUS_QUIESCED(dip)					\
434 	((DEVI(dip)->devi_state & DEVI_BUS_QUIESCED) == DEVI_BUS_QUIESCED)
435 
436 #define	DEVI_SET_BUS_ACTIVE(dip)	{				\
437 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
438 	DEVI(dip)->devi_state &= ~DEVI_BUS_QUIESCED;			\
439 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
440 	}
441 
442 #define	DEVI_SET_BUS_QUIESCE(dip)	{				\
443 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
444 	DEVI(dip)->devi_state |= (DEVI_BUS_QUIESCED | DEVI_S_REPORT);	\
445 	}
446 
447 #define	DEVI_IS_BUS_DOWN(dip)						\
448 	((DEVI(dip)->devi_state & DEVI_BUS_DOWN) == DEVI_BUS_DOWN)
449 
450 #define	DEVI_SET_BUS_UP(dip)		{				\
451 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
452 	DEVI(dip)->devi_state &= ~DEVI_BUS_DOWN;			\
453 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
454 	}
455 
456 #define	DEVI_SET_BUS_DOWN(dip)		{				\
457 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
458 	DEVI(dip)->devi_state |= (DEVI_BUS_DOWN | DEVI_S_REPORT);	\
459 	}
460 
461 /* Status change report needed */
462 #define	DEVI_NEED_REPORT(dip)						\
463 	((DEVI(dip)->devi_state & DEVI_S_REPORT) == DEVI_S_REPORT)
464 
465 #define	DEVI_SET_REPORT(dip)		{				\
466 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
467 	DEVI(dip)->devi_state |= DEVI_S_REPORT;				\
468 	}
469 
470 #define	DEVI_REPORT_DONE(dip)		{				\
471 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
472 	DEVI(dip)->devi_state &= ~DEVI_S_REPORT;			\
473 	}
474 
475 /* Do an NDI_CONFIG for its children */
476 #define	DEVI_NEED_NDI_CONFIG(dip)					\
477 	((DEVI(dip)->devi_state & DEVI_NDI_CONFIG) == DEVI_NDI_CONFIG)
478 
479 #define	DEVI_SET_NDI_CONFIG(dip)	{				\
480 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
481 	DEVI(dip)->devi_state |= DEVI_NDI_CONFIG;			\
482 	}
483 
484 #define	DEVI_CLR_NDI_CONFIG(dip)	{				\
485 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
486 	DEVI(dip)->devi_state &= ~DEVI_NDI_CONFIG;			\
487 	}
488 
489 /* Attaching or detaching state */
490 #define	DEVI_IS_ATTACHING(dip)						\
491 	((DEVI(dip)->devi_state & DEVI_S_ATTACHING) == DEVI_S_ATTACHING)
492 
493 #define	DEVI_SET_ATTACHING(dip)		{				\
494 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
495 	DEVI(dip)->devi_state |= DEVI_S_ATTACHING;			\
496 	}
497 
498 #define	DEVI_CLR_ATTACHING(dip)		{				\
499 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
500 	DEVI(dip)->devi_state &= ~DEVI_S_ATTACHING;			\
501 	}
502 
503 #define	DEVI_IS_DETACHING(dip)						\
504 	((DEVI(dip)->devi_state & DEVI_S_DETACHING) == DEVI_S_DETACHING)
505 
506 #define	DEVI_SET_DETACHING(dip)		{				\
507 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
508 	DEVI(dip)->devi_state |= DEVI_S_DETACHING;			\
509 	}
510 
511 #define	DEVI_CLR_DETACHING(dip)		{				\
512 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
513 	DEVI(dip)->devi_state &= ~DEVI_S_DETACHING;			\
514 	}
515 
516 /* Onlining or offlining state */
517 #define	DEVI_IS_ONLINING(dip)						\
518 	((DEVI(dip)->devi_state & DEVI_S_ONLINING) == DEVI_S_ONLINING)
519 
520 #define	DEVI_SET_ONLINING(dip)		{				\
521 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
522 	DEVI(dip)->devi_state |= DEVI_S_ONLINING;			\
523 	}
524 
525 #define	DEVI_CLR_ONLINING(dip)		{				\
526 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
527 	DEVI(dip)->devi_state &= ~DEVI_S_ONLINING;			\
528 	}
529 
530 #define	DEVI_IS_OFFLINING(dip)						\
531 	((DEVI(dip)->devi_state & DEVI_S_OFFLINING) == DEVI_S_OFFLINING)
532 
533 #define	DEVI_SET_OFFLINING(dip)		{				\
534 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
535 	DEVI(dip)->devi_state |= DEVI_S_OFFLINING;			\
536 	}
537 
538 #define	DEVI_CLR_OFFLINING(dip)		{				\
539 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
540 	DEVI(dip)->devi_state &= ~DEVI_S_OFFLINING;			\
541 	}
542 
543 #define	DEVI_IS_IN_RECONFIG(dip)					\
544 	(DEVI(dip)->devi_state & (DEVI_S_OFFLINING | DEVI_S_ONLINING))
545 
546 /* Busy invoking a dacf task against this node */
547 #define	DEVI_IS_INVOKING_DACF(dip)					\
548 	((DEVI(dip)->devi_state & DEVI_S_INVOKING_DACF) == DEVI_S_INVOKING_DACF)
549 
550 #define	DEVI_SET_INVOKING_DACF(dip)	{				\
551 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
552 	DEVI(dip)->devi_state |= DEVI_S_INVOKING_DACF;			\
553 	}
554 
555 #define	DEVI_CLR_INVOKING_DACF(dip)	{				\
556 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
557 	DEVI(dip)->devi_state &= ~DEVI_S_INVOKING_DACF;			\
558 	}
559 
560 /* Events for add/remove */
561 #define	DEVI_EVADD(dip)							\
562 	((DEVI(dip)->devi_state & DEVI_S_EVADD) == DEVI_S_EVADD)
563 
564 #define	DEVI_SET_EVADD(dip)		{				\
565 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
566 	DEVI(dip)->devi_state &= ~DEVI_S_EVREMOVE;			\
567 	DEVI(dip)->devi_state |= DEVI_S_EVADD;				\
568 	}
569 
570 #define	DEVI_EVREMOVE(dip)						\
571 	((DEVI(dip)->devi_state & DEVI_S_EVREMOVE) == DEVI_S_EVREMOVE)
572 
573 #define	DEVI_SET_EVREMOVE(dip)		{				\
574 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
575 	DEVI(dip)->devi_state &= ~DEVI_S_EVADD;				\
576 	DEVI(dip)->devi_state |= DEVI_S_EVREMOVE;			\
577 	}
578 
579 #define	DEVI_SET_EVUNINIT(dip)		{				\
580 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
581 	DEVI(dip)->devi_state &= ~(DEVI_S_EVADD | DEVI_S_EVREMOVE);	\
582 	}
583 
584 /* Need to call the devo_reset entry point for this device at shutdown */
585 #define	DEVI_NEED_RESET(dip)						\
586 	((DEVI(dip)->devi_state & DEVI_S_NEED_RESET) == DEVI_S_NEED_RESET)
587 
588 #define	DEVI_SET_NEED_RESET(dip)	{				\
589 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
590 	DEVI(dip)->devi_state |= DEVI_S_NEED_RESET;			\
591 	}
592 
593 #define	DEVI_CLR_NEED_RESET(dip)	{				\
594 	ASSERT(mutex_owned(&DEVI(dip)->devi_lock));			\
595 	DEVI(dip)->devi_state &= ~DEVI_S_NEED_RESET;			\
596 	}
597 
598 /*
599  * devi_flags bits
600  *
601  * NOTE: all devi_state updates should be protected by devi_lock.
602  */
603 #define	DEVI_BUSY		0x00000001 /* busy configuring children */
604 #define	DEVI_MADE_CHILDREN	0x00000002 /* children made from specs */
605 #define	DEVI_ATTACHED_CHILDREN	0x00000004 /* attached all existing children */
606 #define	DEVI_BRANCH_HELD	0x00000008 /* branch rooted at this dip held */
607 #define	DEVI_NO_BIND		0x00000010 /* prevent driver binding */
608 #define	DEVI_CACHED_DEVID	0x00000020 /* devid cached in devid cache */
609 #define	DEVI_PHCI_SIGNALS_VHCI	0x00000040 /* pHCI ndi_devi_exit signals vHCI */
610 #define	DEVI_REBIND		0x00000080 /* post initchild driver rebind */
611 #define	DEVI_RETIRED		0x00000100 /* device is retired */
612 #define	DEVI_RETIRING		0x00000200 /* being evaluated for retire */
613 #define	DEVI_R_CONSTRAINT	0x00000400 /* constraints have been applied  */
614 #define	DEVI_R_BLOCKED		0x00000800 /* constraints block retire  */
615 #define	DEVI_CT_NOP		0x00001000 /* NOP contract event occurred */
616 #define	DEVI_PCI_DEVICE		0x00002000 /* dip is PCI */
617 
618 #define	DEVI_BUSY_CHANGING(dip)	(DEVI(dip)->devi_flags & DEVI_BUSY)
619 #define	DEVI_BUSY_OWNED(dip)	(DEVI_BUSY_CHANGING(dip) &&	\
620 	((DEVI(dip))->devi_busy_thread == curthread))
621 
622 #define	DEVI_IS_PCI(dip)	(DEVI(dip)->devi_flags & DEVI_PCI_DEVICE)
623 #define	DEVI_SET_PCI(dip)	(DEVI(dip)->devi_flags |= (DEVI_PCI_DEVICE))
624 
625 char	*i_ddi_devi_class(dev_info_t *);
626 int	i_ddi_set_devi_class(dev_info_t *, char *, int);
627 
628 /*
629  * This structure represents one piece of bus space occupied by a given
630  * device. It is used in an array for devices with multiple address windows.
631  */
632 struct regspec {
633 	uint_t regspec_bustype;		/* cookie for bus type it's on */
634 	uint_t regspec_addr;		/* address of reg relative to bus */
635 	uint_t regspec_size;		/* size of this register set */
636 };
637 
638 /*
639  * This is a version of the above structure that works for 64-bit mappings and
640  * doesn't rely on overloading of fields as is done on SPARC. Eventually the
641  * struct regspec should be replaced with this.
642  */
643 struct regspec64 {
644 	uint64_t regspec_bustype;	/* cookie for bus type it's on */
645 	uint64_t regspec_addr;		/* address of reg relative to bus */
646 	uint64_t regspec_size;		/* size of this register set */
647 };
648 
649 /*
650  * This structure represents one piece of nexus bus space.
651  * It is used in an array for nexi with multiple bus spaces
652  * to define the childs offsets in the parents bus space.
653  */
654 struct rangespec {
655 	uint_t rng_cbustype;		/* Child's address, hi order */
656 	uint_t rng_coffset;		/* Child's address, lo order */
657 	uint_t rng_bustype;		/* Parent's address, hi order */
658 	uint_t rng_offset;		/* Parent's address, lo order */
659 	uint_t rng_size;		/* size of space for this entry */
660 };
661 
662 #ifdef _KERNEL
663 
664 typedef enum {
665 	DDI_PRE = 0,
666 	DDI_POST = 1
667 } ddi_pre_post_t;
668 
669 /*
670  * This structure represents notification of a child attach event
671  * These could both be the same if attach/detach commands were in the
672  * same name space.
673  * Note that the target dip is passed as an arg already.
674  */
675 struct attachspec {
676 	ddi_attach_cmd_t cmd;	/* type of event */
677 	ddi_pre_post_t	when;	/* one of DDI_PRE or DDI_POST */
678 	dev_info_t	*pdip;	/* parent of attaching node */
679 	int		result;	/* result of attach op (post command only) */
680 };
681 
682 /*
683  * This structure represents notification of a child detach event
684  * Note that the target dip is passed as an arg already.
685  */
686 struct detachspec {
687 	ddi_detach_cmd_t cmd;	/* type of event */
688 	ddi_pre_post_t	when;	/* one of DDI_PRE or DDI_POST */
689 	dev_info_t	*pdip;	/* parent of detaching node */
690 	int		result;	/* result of detach op (post command only) */
691 };
692 
693 #endif /* _KERNEL */
694 
695 typedef enum {
696 	DDM_MINOR = 0,
697 	DDM_ALIAS,
698 	DDM_DEFAULT,
699 	DDM_INTERNAL_PATH
700 } ddi_minor_type;
701 
702 /* implementation flags for driver specified device access control */
703 #define	DM_NO_FSPERM	0x1
704 
705 struct devplcy;
706 
707 struct ddi_minor {
708 	char		*name;		/* name of node */
709 	dev_t		dev;		/* device number */
710 	int		spec_type;	/* block or char */
711 	int		flags;		/* access flags */
712 	char		*node_type;	/* block, byte, serial, network */
713 	struct devplcy	*node_priv;	/* privilege for this minor */
714 	mode_t		priv_mode;	/* default apparent privilege mode */
715 };
716 
717 /*
718  * devi_node_attributes contains node attributes private to the
719  * ddi implementation. As a consumer, do not use these bit definitions
720  * directly, use the ndi functions that check for the existence of the
721  * specific node attributes.
722  *
723  * DDI_PERSISTENT indicates a 'persistent' node; one that is not
724  * automatically freed by the framework if the driver is unloaded
725  * or the driver fails to attach to this node.
726  *
727  * DDI_AUTO_ASSIGNED_NODEID indicates that the nodeid was auto-assigned
728  * by the framework and should be auto-freed if the node is removed.
729  *
730  * DDI_VHCI_NODE indicates that the node type is VHCI. This flag
731  * must be set by ndi_devi_config_vhci() routine only.
732  *
733  * DDI_HIDDEN_NODE indicates that the node should not show up in snapshots
734  * or in /devices.
735  *
736  * DDI_HOTPLUG_NODE indicates that the node created by nexus hotplug.
737  */
738 #define	DDI_PERSISTENT			0x01
739 #define	DDI_AUTO_ASSIGNED_NODEID	0x02
740 #define	DDI_VHCI_NODE			0x04
741 #define	DDI_HIDDEN_NODE			0x08
742 #define	DDI_HOTPLUG_NODE		0x10
743 
744 #define	DEVI_VHCI_NODE(dip)						\
745 	(DEVI(dip)->devi_node_attributes & DDI_VHCI_NODE)
746 
747 /*
748  * The ddi_minor_data structure gets filled in by ddi_create_minor_node.
749  * It then gets attached to the devinfo node as a property.
750  */
751 struct ddi_minor_data {
752 	struct ddi_minor_data *next;	/* next one in the chain */
753 	dev_info_t	*dip;		/* pointer to devinfo node */
754 	ddi_minor_type	type;		/* Following data type */
755 	struct ddi_minor d_minor;	/* Actual minor node data */
756 };
757 
758 #define	ddm_name	d_minor.name
759 #define	ddm_dev		d_minor.dev
760 #define	ddm_flags	d_minor.flags
761 #define	ddm_spec_type	d_minor.spec_type
762 #define	ddm_node_type	d_minor.node_type
763 #define	ddm_node_priv	d_minor.node_priv
764 #define	ddm_priv_mode	d_minor.priv_mode
765 
766 /*
767  * parent private data structure contains register, interrupt, property
768  * and range information.
769  */
770 struct ddi_parent_private_data {
771 	int par_nreg;			/* number of regs */
772 	struct regspec *par_reg;	/* array of regs */
773 	int par_nintr;			/* number of interrupts */
774 	struct intrspec *par_intr;	/* array of possible interrupts */
775 	int par_nrng;			/* number of ranges */
776 	struct rangespec *par_rng;	/* array of ranges */
777 };
778 #define	DEVI_PD(d)	\
779 	((struct ddi_parent_private_data *)DEVI((d))->devi_parent_data)
780 
781 #define	sparc_pd_getnreg(dev)		(DEVI_PD(dev)->par_nreg)
782 #define	sparc_pd_getnintr(dev)		(DEVI_PD(dev)->par_nintr)
783 #define	sparc_pd_getnrng(dev)		(DEVI_PD(dev)->par_nrng)
784 #define	sparc_pd_getreg(dev, n)		(&DEVI_PD(dev)->par_reg[(n)])
785 #define	sparc_pd_getintr(dev, n)	(&DEVI_PD(dev)->par_intr[(n)])
786 #define	sparc_pd_getrng(dev, n)		(&DEVI_PD(dev)->par_rng[(n)])
787 
788 #ifdef _KERNEL
789 /*
790  * This data structure is private to the indexed soft state allocator.
791  */
792 typedef struct i_ddi_soft_state {
793 	void		**array;	/* the array of pointers */
794 	kmutex_t	lock;		/* serialize access to this struct */
795 	size_t		size;		/* how many bytes per state struct */
796 	size_t		n_items;	/* how many structs herein */
797 	struct i_ddi_soft_state *next;	/* 'dirty' elements */
798 } i_ddi_soft_state;
799 
800 /*
801  * This data structure is private to the stringhashed soft state allocator.
802  */
803 typedef struct i_ddi_soft_state_bystr {
804 	size_t		ss_size;	/* how many bytes per state struct */
805 	mod_hash_t	*ss_mod_hash;	/* hash implementation */
806 } i_ddi_soft_state_bystr;
807 
808 /*
809  * This data structure is private to the ddi_strid_* implementation
810  */
811 typedef struct i_ddi_strid {
812 	size_t		strid_chunksz;
813 	size_t		strid_spacesz;
814 	id_space_t	*strid_space;
815 	mod_hash_t	*strid_byid;
816 	mod_hash_t	*strid_bystr;
817 } i_ddi_strid;
818 #endif /* _KERNEL */
819 
820 /*
821  * Solaris DDI DMA implementation structure and function definitions.
822  *
823  * Note: no callers of DDI functions must depend upon data structures
824  * declared below. They are not guaranteed to remain constant.
825  */
826 
827 /*
828  * Implementation DMA mapping structure.
829  *
830  * The publicly visible ddi_dma_req structure is filled
831  * in by a caller that wishes to map a memory object
832  * for DMA. Internal to this implementation of the public
833  * DDI DMA functions this request structure is put together
834  * with bus nexus specific functions that have additional
835  * information and constraints as to how to go about doing
836  * the requested mapping function
837  *
838  * In this implementation, some of the information from the
839  * original requester is retained throughout the lifetime
840  * of the I/O mapping being active.
841  */
842 
843 /*
844  * This is the implementation specific description
845  * of how we've mapped an object for DMA.
846  */
847 #if defined(__sparc)
848 typedef struct ddi_dma_impl {
849 	/*
850 	 * DMA mapping information
851 	 */
852 	ulong_t	dmai_mapping;	/* mapping cookie */
853 
854 	/*
855 	 * Size of the current mapping, in bytes.
856 	 *
857 	 * Note that this is distinct from the size of the object being mapped
858 	 * for DVMA. We might have only a portion of the object mapped at any
859 	 * given point in time.
860 	 */
861 	uint_t	dmai_size;
862 
863 	/*
864 	 * Offset, in bytes, into object that is currently mapped.
865 	 */
866 	off_t	dmai_offset;
867 
868 	/*
869 	 * Information gathered from the original DMA mapping
870 	 * request and saved for the lifetime of the mapping.
871 	 */
872 	uint_t		dmai_minxfer;
873 	uint_t		dmai_burstsizes;
874 	uint_t		dmai_ndvmapages;
875 	uint_t		dmai_pool;	/* cached DVMA space */
876 	uint_t		dmai_rflags;	/* requester's flags + ours */
877 	uint_t		dmai_inuse;	/* active handle? */
878 	uint_t		dmai_nwin;
879 	uint_t		dmai_winsize;
880 	caddr_t		dmai_nexus_private;
881 	void		*dmai_iopte;
882 	uint_t		*dmai_sbi;
883 	void		*dmai_minfo;	/* random mapping information */
884 	dev_info_t	*dmai_rdip;	/* original requester's dev_info_t */
885 	ddi_dma_obj_t	dmai_object;	/* requester's object */
886 	ddi_dma_attr_t	dmai_attr;	/* DMA attributes */
887 	ddi_dma_cookie_t *dmai_cookie;	/* pointer to first DMA cookie */
888 
889 	int		(*dmai_fault_check)(struct ddi_dma_impl *handle);
890 	void		(*dmai_fault_notify)(struct ddi_dma_impl *handle);
891 	int		dmai_fault;
892 	ndi_err_t	dmai_error;
893 
894 } ddi_dma_impl_t;
895 
896 #elif defined(__x86)
897 
898 /*
899  * ddi_dma_impl portion that genunix (sunddi.c) depends on. x86 rootnex
900  * implementation specific state is in dmai_private.
901  */
902 typedef struct ddi_dma_impl {
903 	ddi_dma_cookie_t *dmai_cookie; /* array of DMA cookies */
904 	void		*dmai_private;
905 
906 	/*
907 	 * Information gathered from the original dma mapping
908 	 * request and saved for the lifetime of the mapping.
909 	 */
910 	uint_t		dmai_minxfer;
911 	uint_t		dmai_burstsizes;
912 	uint_t		dmai_rflags;	/* requester's flags + ours */
913 	int		dmai_nwin;
914 	dev_info_t	*dmai_rdip;	/* original requester's dev_info_t */
915 
916 	ddi_dma_attr_t	dmai_attr;	/* DMA attributes */
917 
918 	int		(*dmai_fault_check)(struct ddi_dma_impl *handle);
919 	void		(*dmai_fault_notify)(struct ddi_dma_impl *handle);
920 	int		dmai_fault;
921 	ndi_err_t	dmai_error;
922 } ddi_dma_impl_t;
923 
924 #else
925 #error "struct ddi_dma_impl not defined for this architecture"
926 #endif  /* defined(__sparc) */
927 
928 /*
929  * For now DMA segments share state with the DMA handle
930  */
931 typedef ddi_dma_impl_t ddi_dma_seg_impl_t;
932 
933 /*
934  * These flags use reserved bits from the dma request flags.
935  *
936  * A note about the DMP_NOSYNC flags: the root nexus will
937  * set these as it sees best. If an intermediate nexus
938  * actually needs these operations, then during the unwind
939  * from the call to ddi_dma_bind, the nexus driver *must*
940  * clear the appropriate flag(s). This is because, as an
941  * optimization, ddi_dma_sync(9F) looks at these flags before
942  * deciding to spend the time going back up the tree.
943  */
944 
945 #define	_DMCM1	DDI_DMA_RDWR|DDI_DMA_REDZONE|DDI_DMA_PARTIAL
946 #define	_DMCM2	DDI_DMA_CONSISTENT|DMP_VMEREQ
947 #define	DMP_DDIFLAGS	(_DMCM1|_DMCM2)
948 #define	DMP_SHADOW	0x20
949 #define	DMP_LKIOPB	0x40
950 #define	DMP_LKSYSV	0x80
951 #define	DMP_IOCACHE	0x100
952 #define	DMP_USEHAT	0x200
953 #define	DMP_PHYSADDR	0x400
954 #define	DMP_INVALID	0x800
955 #define	DMP_NOLIMIT	0x1000
956 #define	DMP_VMEREQ	0x10000000
957 #define	DMP_BYPASSNEXUS	0x20000000
958 #define	DMP_NODEVSYNC	0x40000000
959 #define	DMP_NOCPUSYNC	0x80000000
960 #define	DMP_NOSYNC	(DMP_NODEVSYNC|DMP_NOCPUSYNC)
961 
962 /*
963  * In order to complete a device to device mapping that
964  * has percolated as high as an IU nexus (gone that high
965  * because the DMA request is a VADDR type), we define
966  * structure to use with the DDI_CTLOPS_DMAPMAPC request
967  * that re-traverses the request tree to finish the
968  * DMA 'mapping' for a device.
969  */
970 struct dma_phys_mapc {
971 	struct ddi_dma_req *dma_req;	/* original request */
972 	ddi_dma_impl_t *mp;		/* current handle, or none */
973 	int nptes;			/* number of ptes */
974 	void *ptes;			/* ptes already read */
975 };
976 
977 #define	MAXCALLBACK		20
978 
979 /*
980  * Callback definitions
981  */
982 struct ddi_callback {
983 	struct ddi_callback	*c_nfree;
984 	struct ddi_callback	*c_nlist;
985 	int			(*c_call)();
986 	int			c_count;
987 	caddr_t			c_arg;
988 	size_t			c_size;
989 };
990 
991 /*
992  * Pure dynamic property declaration. A pure dynamic property is a property
993  * for which a driver's prop_op(9E) implementation will return a value on
994  * demand, but the property name does not exist on a property list (global,
995  * driver, system, or hardware) - the person asking for the value must know
996  * the name and type information.
997  *
998  * For a pure dynamic property to show up in a di_init() devinfo shapshot, the
999  * devinfo driver must know name and type. The i_ddi_prop_dyn_t mechanism
1000  * allows a driver to define an array of the name/type information of its
1001  * dynamic properties. When a driver declares its dynamic properties in a
1002  * i_ddi_prop_dyn_t array, and registers that array using
1003  * i_ddi_prop_dyn_driver_set() the devinfo driver has sufficient information
1004  * to represent the properties in a snapshot - calling the driver's
1005  * prop_op(9E) to obtain values.
1006  *
1007  * The last element of a i_ddi_prop_dyn_t is detected via a NULL dp_name value.
1008  *
1009  * A pure dynamic property name associated with a minor_node/dev_t should be
1010  * defined with a dp_spec_type of S_IFCHR or S_IFBLK, as appropriate.  The
1011  * driver's prop_op(9E) entry point will be called for all
1012  * ddi_create_minor_node(9F) nodes of the specified spec_type. For a driver
1013  * where not all minor_node/dev_t combinations support the same named
1014  * properties, it is the responsibility of the prop_op(9E) implementation to
1015  * sort out what combinations are appropriate.
1016  *
1017  * A pure dynamic property of a devinfo node should be defined with a
1018  * dp_spec_type of 0.
1019  *
1020  * NB: Public DDI property interfaces no longer support pure dynamic
1021  * properties, but they are still still used.  A prime example is the cmlb
1022  * implementation of size(9P) properties. Using pure dynamic properties
1023  * reduces the space required to maintain per-partition information. Since
1024  * there are no public interfaces to create pure dynamic properties,
1025  * the i_ddi_prop_dyn_t mechanism should remain private.
1026  */
1027 typedef struct i_ddi_prop_dyn {
1028 	char	*dp_name;		/* name of dynamic property */
1029 	int	dp_type;		/* DDI_PROP_TYPE_ of property */
1030 	int	dp_spec_type;		/* 0, S_IFCHR, S_IFBLK */
1031 } i_ddi_prop_dyn_t;
1032 void			i_ddi_prop_dyn_driver_set(dev_info_t *,
1033 			    i_ddi_prop_dyn_t *);
1034 i_ddi_prop_dyn_t	*i_ddi_prop_dyn_driver_get(dev_info_t *);
1035 void			i_ddi_prop_dyn_parent_set(dev_info_t *,
1036 			    i_ddi_prop_dyn_t *);
1037 i_ddi_prop_dyn_t	*i_ddi_prop_dyn_parent_get(dev_info_t *);
1038 void			i_ddi_prop_dyn_cache_invalidate(dev_info_t *,
1039 			    i_ddi_prop_dyn_t *);
1040 
1041 /*
1042  * Device id - Internal definition.
1043  */
1044 #define	DEVID_MAGIC_MSB		0x69
1045 #define	DEVID_MAGIC_LSB		0x64
1046 #define	DEVID_REV_MSB		0x00
1047 #define	DEVID_REV_LSB		0x01
1048 #define	DEVID_HINT_SIZE		4
1049 
1050 typedef struct impl_devid {
1051 	uchar_t	did_magic_hi;			/* device id magic # (msb) */
1052 	uchar_t	did_magic_lo;			/* device id magic # (lsb) */
1053 	uchar_t	did_rev_hi;			/* device id revision # (msb) */
1054 	uchar_t	did_rev_lo;			/* device id revision # (lsb) */
1055 	uchar_t	did_type_hi;			/* device id type (msb) */
1056 	uchar_t	did_type_lo;			/* device id type (lsb) */
1057 	uchar_t	did_len_hi;			/* length of devid data (msb) */
1058 	uchar_t	did_len_lo;			/* length of devid data (lsb) */
1059 	char	did_driver[DEVID_HINT_SIZE];	/* driver name - HINT */
1060 	char	did_id[1];			/* start of device id data */
1061 } impl_devid_t;
1062 
1063 #define	DEVID_GETTYPE(devid)		((ushort_t) \
1064 					    (((devid)->did_type_hi << NBBY) + \
1065 					    (devid)->did_type_lo))
1066 
1067 #define	DEVID_FORMTYPE(devid, type)	(devid)->did_type_hi = hibyte((type)); \
1068 					(devid)->did_type_lo = lobyte((type));
1069 
1070 #define	DEVID_GETLEN(devid)		((ushort_t) \
1071 					    (((devid)->did_len_hi << NBBY) + \
1072 					    (devid)->did_len_lo))
1073 
1074 #define	DEVID_FORMLEN(devid, len)	(devid)->did_len_hi = hibyte((len)); \
1075 					(devid)->did_len_lo = lobyte((len));
1076 
1077 /*
1078  * Per PSARC/1995/352, a binary devid contains fields for <magic number>,
1079  * <revision>, <driver_hint>, <type>, <id_length>, and the <id> itself.
1080  * This proposal would encode the binary devid into a string consisting
1081  * of "<magic><revision>,<driver_hint>@<type><id>" as indicated below
1082  * (<id_length> is rederived from the length of the string
1083  * representation of the <id>):
1084  *
1085  *	<magic>		->"id"
1086  *
1087  *	<rev>		->"%d"	// "0" -> type of DEVID_NONE  "id0"
1088  *				// NOTE: PSARC/1995/352 <revision> is "1".
1089  *				// NOTE: support limited to 10 revisions
1090  *				//	in current implementation
1091  *
1092  *	<driver_hint>	->"%s"	// "sd"/"ssd"
1093  *				// NOTE: driver names limited to 4
1094  *				//	characters for <revision> "1"
1095  *
1096  *	<type>		->'w' |	// DEVID_SCSI3_WWN	<hex_id>
1097  *			'W' |	// DEVID_SCSI3_WWN	<ascii_id>
1098  *			't' |	// DEVID_SCSI3_VPD_T10	<hex_id>
1099  *			'T' |	// DEVID_SCSI3_VPD_T10	<ascii_id>
1100  *			'x' |	// DEVID_SCSI3_VPD_EUI	<hex_id>
1101  *			'X' |	// DEVID_SCSI3_VPD_EUI	<ascii_id>
1102  *			'n' |	// DEVID_SCSI3_VPD_NAA	<hex_id>
1103  *			'N' |	// DEVID_SCSI3_VPD_NAA	<ascii_id>
1104  *			's' |	// DEVID_SCSI_SERIAL	<hex_id>
1105  *			'S' |	// DEVID_SCSI_SERIAL	<ascii_id>
1106  *			'f' |	// DEVID_FAB		<hex_id>
1107  *			'F' |	// DEVID_FAB		<ascii_id>
1108  *			'e' |	// DEVID_ENCAP		<hex_id>
1109  *			'E' |	// DEVID_ENCAP		<ascii_id>
1110  *			'a' |	// DEVID_ATA_SERIAL	<hex_id>
1111  *			'A' |	// DEVID_ATA_SERIAL	<ascii_id>
1112  *			'u' |	// unknown		<hex_id>
1113  *			'U'	// unknown		<ascii_id>
1114  *				// NOTE:lower case -> <hex_id>
1115  *				//	upper case -> <ascii_id>
1116  *				// NOTE:this covers all types currently
1117  *				//	defined for <revision> 1.
1118  *				// NOTE:a <type> can be added
1119  *				//	without changing the <revision>.
1120  *
1121  *	<id>		-> <ascii_id> |	// <type> is upper case
1122  *			<hex_id>	// <type> is lower case
1123  *
1124  *	<ascii_id>	// only if all bytes of binary <id> field
1125  *			// are in the set:
1126  *			//	[A-Z][a-z][0-9]+-.= and space and 0x00
1127  *			// the encoded form is:
1128  *			//	[A-Z][a-z][0-9]+-.= and _ and ~
1129  *			//	NOTE: ' ' <=> '_', 0x00 <=> '~'
1130  *			// these sets are chosen to avoid shell
1131  *			// and conflicts with DDI node names.
1132  *
1133  *	<hex_id>	// if not <ascii_id>; each byte of binary
1134  *			// <id> maps a to 2 digit ascii hex
1135  *			// representation in the string.
1136  *
1137  * This encoding provides a meaningful correlation between the /devices
1138  * path and the devid string where possible.
1139  *
1140  *   Fibre:
1141  *	sbus@6,0/SUNW,socal@d,10000/sf@1,0/ssd@w21000020370bb488,0:c,raw
1142  *	id1,ssd@w20000020370bb488:c,raw
1143  *
1144  *   Copper:
1145  *	sbus@7,0/SUNW,fas@3,8800000/sd@a,0:c
1146  *	id1,sd@SIBM_____1XY210__________:c
1147  */
1148 /* determine if a byte of an id meets ASCII representation requirements */
1149 #define	DEVID_IDBYTE_ISASCII(b)		(				\
1150 	(((b) >= 'a') && ((b) <= 'z')) ||				\
1151 	(((b) >= 'A') && ((b) <= 'Z')) ||				\
1152 	(((b) >= '0') && ((b) <= '9')) ||				\
1153 	(b == '+') || (b == '-') || (b == '.') || (b == '=') ||		\
1154 	(b == ' ') || (b == 0x00))
1155 
1156 /* set type to lower case to indicate that the did_id field is ascii */
1157 #define	DEVID_TYPE_SETASCII(c)	(c - 0x20)	/* 'a' -> 'A' */
1158 
1159 /* determine from type if did_id field is binary or ascii */
1160 #define	DEVID_TYPE_ISASCII(c)	(((c) >= 'A') && ((c) <= 'Z'))
1161 
1162 /* convert type field from binary to ascii */
1163 #define	DEVID_TYPE_BINTOASCII(b)	(				\
1164 	((b) == DEVID_SCSI3_WWN)	? 'w' :				\
1165 	((b) == DEVID_SCSI3_VPD_T10)	? 't' :				\
1166 	((b) == DEVID_SCSI3_VPD_EUI)	? 'x' :				\
1167 	((b) == DEVID_SCSI3_VPD_NAA)	? 'n' :				\
1168 	((b) == DEVID_SCSI_SERIAL)	? 's' :				\
1169 	((b) == DEVID_FAB)		? 'f' :				\
1170 	((b) == DEVID_ENCAP)		? 'e' :				\
1171 	((b) == DEVID_ATA_SERIAL)	? 'a' :				\
1172 	'u')						/* unknown */
1173 
1174 /* convert type field from ascii to binary */
1175 #define	DEVID_TYPE_ASCIITOBIN(c)	(				\
1176 	(((c) == 'w') || ((c) == 'W'))	? DEVID_SCSI3_WWN :		\
1177 	(((c) == 't') || ((c) == 'T'))	? DEVID_SCSI3_VPD_T10 :		\
1178 	(((c) == 'x') || ((c) == 'X'))	? DEVID_SCSI3_VPD_EUI :		\
1179 	(((c) == 'n') || ((c) == 'N'))	? DEVID_SCSI3_VPD_NAA :		\
1180 	(((c) == 's') || ((c) == 'S'))	? DEVID_SCSI_SERIAL :		\
1181 	(((c) == 'f') || ((c) == 'F'))	? DEVID_FAB :			\
1182 	(((c) == 'e') || ((c) == 'E'))	? DEVID_ENCAP :			\
1183 	(((c) == 'a') || ((c) == 'A'))	? DEVID_ATA_SERIAL :		\
1184 	DEVID_MAXTYPE +1)				/* unknown */
1185 
1186 /* determine if the type should be forced to hex encoding (non-ascii) */
1187 #define	DEVID_TYPE_BIN_FORCEHEX(b) (	\
1188 	((b) == DEVID_SCSI3_WWN) ||	\
1189 	((b) == DEVID_SCSI3_VPD_EUI) ||	\
1190 	((b) == DEVID_SCSI3_VPD_NAA) ||	\
1191 	((b) == DEVID_FAB))
1192 
1193 /* determine if the type is from a scsi3 vpd */
1194 #define	IS_DEVID_SCSI3_VPD_TYPE(b) (	\
1195 	((b) == DEVID_SCSI3_VPD_T10) ||	\
1196 	((b) == DEVID_SCSI3_VPD_EUI) ||	\
1197 	((b) == DEVID_SCSI3_VPD_NAA))
1198 
1199 /* convert rev field from binary to ascii (only supports 10 revs) */
1200 #define	DEVID_REV_BINTOASCII(b) (b + '0')
1201 
1202 /* convert rev field from ascii to binary (only supports 10 revs) */
1203 #define	DEVID_REV_ASCIITOBIN(c) (c - '0')
1204 
1205 /* name of devid property */
1206 #define	DEVID_PROP_NAME	"devid"
1207 
1208 /*
1209  * prop_name used by pci_{save,restore}_config_regs()
1210  */
1211 #define	SAVED_CONFIG_REGS "pci-config-regs"
1212 #define	SAVED_CONFIG_REGS_MASK "pcie-config-regs-mask"
1213 #define	SAVED_CONFIG_REGS_CAPINFO "pci-cap-info"
1214 
1215 typedef struct pci_config_header_state {
1216 	uint16_t	chs_command;
1217 	uint8_t		chs_cache_line_size;
1218 	uint8_t		chs_latency_timer;
1219 	uint8_t		chs_header_type;
1220 	uint8_t		chs_sec_latency_timer;
1221 	uint8_t		chs_bridge_control;
1222 	uint32_t	chs_base0;
1223 	uint32_t	chs_base1;
1224 	uint32_t	chs_base2;
1225 	uint32_t	chs_base3;
1226 	uint32_t	chs_base4;
1227 	uint32_t	chs_base5;
1228 } pci_config_header_state_t;
1229 
1230 #ifdef _KERNEL
1231 
1232 typedef struct pci_cap_save_desc {
1233 	uint16_t	cap_offset;
1234 	uint16_t	cap_id;
1235 	uint32_t	cap_nregs;
1236 } pci_cap_save_desc_t;
1237 
1238 typedef struct pci_cap_entry {
1239 	uint16_t		cap_id;
1240 	uint16_t		cap_reg;
1241 	uint16_t		cap_mask;
1242 	uint32_t		cap_ndwords;
1243 	uint32_t (*cap_save_func)(ddi_acc_handle_t confhdl, uint16_t cap_ptr,
1244 	    uint32_t *regbuf, uint32_t ndwords);
1245 } pci_cap_entry_t;
1246 
1247 #endif /* _KERNEL */
1248 
1249 #ifdef	__cplusplus
1250 }
1251 #endif
1252 
1253 #endif	/* _SYS_DDI_IMPLDEFS_H */
1254