xref: /titanic_44/usr/src/uts/common/io/ib/ibnex/ibnex.c (revision 22eb7cb54d8a6bcf6fe2674cb4b1f0cf2d85cfb6)
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 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * The InfiniBand  Nexus driver (IB nexus) is a bus nexus driver for IB bus.
28  * It supports  Port nodes, Virtual Physical Point of Attachment nodes (VPPA)
29  * for  HCAs registered with IBTL and IOC nodes for all the IOCs present in
30  * the IB fabric (that are accessible to the host). It also supports Pseudo
31  * device children to be enumerated using their .conf file(s). All Port nodes
32  * and VPPA nodes are children of HCA drivers. All the IOC nodes and the Pseudo
33  * device nodes are children of the IB nexus driver.
34  *
35  * IB nexus driver provides bus nexus entry points to all the HCA drivers.
36  *
37  * IB nexus  driver registers with  InfiniBand Device  Manager (IBDM) to get
38  * information about all the HCA ports and  I/O Controllers (IOCs) connected
39  * to the IB fabric. Based on that information, IB nexus will create all the
40  * device tree nodes.
41  */
42 
43 #pragma ident	"%Z%%M%	%I%	%E% SMI"
44 
45 
46 #include <sys/conf.h>
47 #include <sys/stat.h>
48 #include <sys/modctl.h>
49 #include <sys/taskq.h>
50 #include <sys/mdi_impldefs.h>
51 #include <sys/sunmdi.h>
52 #include <sys/sunpm.h>
53 #include <sys/ib/mgt/ibdm/ibdm_impl.h>
54 #include <sys/ib/ibnex/ibnex.h>
55 #include <sys/ib/ibnex/ibnex_devctl.h>
56 #include <sys/ib/ibtl/ibti.h>
57 #include <sys/ib/ibtl/impl/ibtl_ibnex.h>
58 #include <sys/file.h>
59 #include <sys/hwconf.h>
60 
61 /* Function prototypes */
62 static int		ibnex_attach(dev_info_t *, ddi_attach_cmd_t);
63 static int		ibnex_getinfo(dev_info_t *, ddi_info_cmd_t,
64 			    void *, void **);
65 static int		ibnex_detach(dev_info_t *, ddi_detach_cmd_t);
66 static int		ibnex_busctl(dev_info_t *,
67 			    dev_info_t *, ddi_ctl_enum_t, void *, void *);
68 static int		ibnex_map_fault(dev_info_t *,
69 			    dev_info_t *, struct hat *, struct seg *,
70 			    caddr_t, struct devpage *, pfn_t, uint_t, uint_t);
71 static int		ibnex_init_child(dev_info_t *);
72 static ibnex_rval_t	ibnex_comm_svc_init(char *, ibnex_node_type_t);
73 static void		ibnex_comm_svc_fini();
74 dev_info_t		*ibnex_commsvc_initnode(dev_info_t *,
75 			    ibdm_port_attr_t *, int, int, ib_pkey_t, int *,
76 			    int);
77 static void		ibnex_delete_port_node_data(ibnex_node_data_t *);
78 int			ibnex_get_dip_from_guid(ib_guid_t, int,
79 			    ib_pkey_t, dev_info_t **);
80 static ibnex_node_data_t *ibnex_is_node_data_present(ibnex_node_type_t,
81 			    void *, int, ib_pkey_t);
82 static ibnex_node_data_t *ibnex_init_child_nodedata(ibnex_node_type_t, void *,
83 			    int, ib_pkey_t);
84 static int		ibnex_create_port_node_prop(ibdm_port_attr_t *,
85 			    dev_info_t *, char *, ib_pkey_t);
86 void			ibnex_dm_callback(void *, ibdm_events_t);
87 static int		ibnex_create_port_compatible_prop(dev_info_t *,
88 			    char *, ibdm_port_attr_t *);
89 static int		ibnex_create_ioc_srv_props(
90 			    dev_info_t *, ibdm_ioc_info_t *);
91 static int		ibnex_get_eventcookie(dev_info_t *,
92 			    dev_info_t *, char *, ddi_eventcookie_t *);
93 static int		ibnex_add_eventcall(dev_info_t *, dev_info_t *,
94 			    ddi_eventcookie_t, void (*)(dev_info_t *,
95 			    ddi_eventcookie_t, void *, void *),
96 			    void *arg, ddi_callback_id_t *cb_id);
97 static int		ibnex_remove_eventcall(dev_info_t *,
98 			    ddi_callback_id_t);
99 static int		ibnex_post_event(dev_info_t *, dev_info_t *,
100 			    ddi_eventcookie_t, void *);
101 static int		ibnex_bus_config(dev_info_t *, uint_t,
102 			    ddi_bus_config_op_t, void *, dev_info_t **);
103 static int		ibnex_bus_unconfig(dev_info_t *,
104 			    uint_t, ddi_bus_config_op_t, void *);
105 static dev_info_t	*ibnex_config_port_node(dev_info_t *, char *);
106 static dev_info_t	*ibnex_config_obp_args(dev_info_t *, char *);
107 static int		ibnex_get_pkey_commsvc_index_portnum(
108 			    char *, int *, ib_pkey_t *, uint8_t *);
109 static void		ibnex_config_all_children(dev_info_t *);
110 static int		ibnex_devname_to_portnum(char *, uint8_t *);
111 static void		ibnex_create_vppa_nodes(
112 			    dev_info_t *, ibdm_port_attr_t *);
113 static void		ibnex_create_port_nodes(
114 			    dev_info_t *, ibdm_port_attr_t *);
115 static void		ibnex_create_hcasvc_nodes(
116 			    dev_info_t *, ibdm_port_attr_t *);
117 static int		ibnex_config_root_iocnode(dev_info_t *, char *);
118 static int		ibnex_devname2port(char *, int *);
119 static int		ibnex_config_ioc_node(char *, dev_info_t *);
120 static int		ibnex_devname_to_node_n_ioc_guids(
121 			    char *, ib_guid_t *, ib_guid_t *, char **);
122 static int		ibnex_is_ioc_present(ib_guid_t);
123 static void		ibnex_ioc_node_cleanup();
124 static void		ibnex_delete_ioc_node_data(ibnex_node_data_t *);
125 int			ibnex_ioc_initnode(ibdm_ioc_info_t *, int,
126 					    dev_info_t *);
127 static int		ibnex_create_ioc_node_prop(
128 			    ibdm_ioc_info_t *, dev_info_t *);
129 static int		ibnex_create_ioc_compatible_prop(
130 			    dev_info_t *, ib_dm_ioc_ctrl_profile_t *);
131 uint64_t		ibnex_str2hex(char *, int, int *);
132 static int		ibnex_str2int(char *, int, int *);
133 static int		ibnex_create_ioc_portgid_prop(
134 			    dev_info_t *, ibdm_ioc_info_t *);
135 static void		ibnex_wakeup_reprobe_ioc(ibnex_node_data_t *, int);
136 static void		ibnex_wakeup_reprobe_all();
137 ibt_status_t		ibnex_ibtl_callback(ibtl_ibnex_cb_args_t *);
138 static int		ibnex_prom_devname_to_pkey_n_portnum(
139 			    char *, ib_pkey_t *, uint8_t *);
140 void			ibnex_pseudo_initnodes(void);
141 static char		*ibnex_lookup_named_prop(ddi_prop_t *, char *);
142 static void		ibnex_pseudo_node_cleanup(void);
143 static int		ibnex_name_child(dev_info_t *, char *, int);
144 static int		ibnex_name_pseudo_child(dev_info_t *, char *);
145 
146 void			ibnex_reprobe_ioc_dev(void *);
147 void			ibnex_reprobe_ioc_all();
148 static void		ibnex_update_prop(ibnex_node_data_t *,
149 			    ibdm_ioc_info_t *);
150 static ibnex_rval_t	ibnex_unique_svcname(char *);
151 static void		ibnex_handle_reprobe_dev(void *arg);
152 
153 extern int		ibnex_open(dev_t *, int, int, cred_t *);
154 extern int		ibnex_close(dev_t, int, int, cred_t *);
155 extern int		ibnex_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
156 extern int		ibnex_offline_childdip(dev_info_t *);
157 
158 static int		ibnex_ioc_create_pi(
159 			    ibdm_ioc_info_t *, ibnex_node_data_t *,
160 			    dev_info_t *);
161 static int		ibnex_bus_power(dev_info_t *, void *,
162 			    pm_bus_power_op_t, void *, void *);
163 int			ibnex_pseudo_create_pi(ibnex_node_data_t *,
164 			    dev_info_t *);
165 static int		ibnex_pseudo_config_one(
166 			    ibnex_node_data_t *, char *, dev_info_t *);
167 static int		ibnex_pseudo_mdi_config_one(int, void *, dev_info_t **,
168 			    char *, char *);
169 static void		ibnex_config_pseudo_all(dev_info_t *);
170 static int		ibnex_ioc_bus_config_one(dev_info_t **, uint_t,
171 			    ddi_bus_config_op_t, void *, dev_info_t **, int *);
172 static int		ibnex_is_merge_node(dev_info_t *);
173 static void		ibnex_hw_in_dev_tree(char *);
174 
175 /*
176  * The bus_ops structure defines the capabilities of HCA nexus driver.
177  */
178 struct bus_ops ibnex_ci_busops = {
179 	BUSO_REV,
180 	nullbusmap,		/* bus_map */
181 	NULL,			/* bus_get_intrspec */
182 	NULL,			/* bus_add_intrspec */
183 	NULL,			/* bus_remove_intrspec */
184 	ibnex_map_fault,	/* Map Fault */
185 	ddi_no_dma_map,		/* DMA related entry points */
186 	NULL,
187 	NULL,
188 	NULL,
189 	NULL,
190 	NULL,
191 	NULL,
192 	NULL,
193 	ibnex_busctl,		/* bus_ctl */
194 	ddi_bus_prop_op,	/* bus_prop_op */
195 	NULL,			/* bus_get_eventcookie	*/
196 	NULL,			/* bus_add_eventcall	*/
197 	NULL,			/* bus_remove_eventcall	*/
198 	NULL,			/* bus_post_event	*/
199 	NULL,
200 	ibnex_bus_config,	/* bus config */
201 	ibnex_bus_unconfig	/* bus unconfig */
202 };
203 
204 /*
205  * Prototype declarations for the VHCI options
206  */
207 /*
208  * Functions registered with the mpxio framework
209  */
210 static int ib_vhci_pi_init(dev_info_t *, mdi_pathinfo_t *, int);
211 static int ib_vhci_pi_uninit(dev_info_t *, mdi_pathinfo_t *, int);
212 static int ib_vhci_pi_state_change(dev_info_t *, mdi_pathinfo_t *,
213 		mdi_pathinfo_state_t, uint32_t, int);
214 static int ib_vhci_failover(dev_info_t *, dev_info_t *, int);
215 
216 
217 static mdi_vhci_ops_t ibnex_vhci_ops = {
218 	MDI_VHCI_OPS_REV,
219 	ib_vhci_pi_init,
220 	ib_vhci_pi_uninit,
221 	ib_vhci_pi_state_change,
222 	ib_vhci_failover
223 };
224 
225 
226 /*
227  * The  bus_ops  structure  defines the  capabilities  of IB nexus driver.
228  * IB nexus drivers does not  support any DMA  operations for its children
229  * as there is  no  such concept in Infiniband.  All the memory operations
230  * and DMA operations required by the child drivers can be performed using
231  * the IBTF API.
232  */
233 struct bus_ops ibnex_bus_ops = {
234 	BUSO_REV,
235 	nullbusmap,		/* bus_map */
236 	NULL,			/* bus_get_intrspec */
237 	NULL,			/* bus_add_intrspec */
238 	NULL,			/* bus_remove_intrspec */
239 	ibnex_map_fault,	/* Map Fault */
240 	ddi_no_dma_map,		/* DMA related entry points */
241 	ddi_no_dma_allochdl,
242 	NULL,
243 	NULL,
244 	NULL,
245 	NULL,
246 	NULL,
247 	NULL,
248 	ibnex_busctl,		/* bus_ctl */
249 	ddi_bus_prop_op,	/* bus_prop_op */
250 	ibnex_get_eventcookie,	/* bus_get_eventcookie	*/
251 	ibnex_add_eventcall,	/* bus_add_eventcall	*/
252 	ibnex_remove_eventcall,	/* bus_remove_eventcall	*/
253 	ibnex_post_event,		/* bus_post_event	*/
254 	NULL,
255 	ibnex_bus_config,	/* bus config */
256 	ibnex_bus_unconfig,	/* bus unconfig */
257 	NULL,			/* bus fm init */
258 	NULL,			/* bus fm fini */
259 	NULL,			/* bus fm access enter */
260 	NULL,			/* bus fm access exit */
261 	ibnex_bus_power		/* bus power */
262 };
263 
264 /* ibnex cb_ops */
265 static struct cb_ops ibnex_cbops = {
266 	ibnex_open,		/* open */
267 	ibnex_close,		/* close */
268 	nodev,			/* strategy */
269 	nodev,			/* print */
270 	nodev,			/* dump */
271 	nodev,			/* read */
272 	nodev,			/* write */
273 	ibnex_ioctl,		/* ioctl */
274 	nodev,			/* devmap */
275 	nodev,			/* mmap */
276 	nodev,			/* segmap */
277 	nochpoll,		/* poll */
278 	ddi_prop_op,		/* prop_op */
279 	NULL,			/* stream */
280 	D_MP,			/* cb_flag */
281 	CB_REV, 		/* rev */
282 	nodev,			/* int (*cb_aread)() */
283 	nodev			/* int (*cb_awrite)() */
284 };
285 
286 /*
287  * Device options
288  * Note: ddi_no_info needs to change during devfs time frame. The drivers
289  *	 with 1 to 1 mapping between minor node and instance should use
290  *	 ddi_1to1_info. (See bug id 4424752)
291  */
292 static struct dev_ops ibnex_ops = {
293 	DEVO_REV,		/* devo_rev, */
294 	0,			/* refcnt  */
295 	ibnex_getinfo,		/* info */
296 	nulldev,		/* identify */
297 	nulldev,		/* probe */
298 	ibnex_attach,		/* attach */
299 	ibnex_detach,		/* detach */
300 	nodev,			/* reset */
301 	&ibnex_cbops,		/* driver ops - devctl interfaces */
302 	&ibnex_bus_ops,		/* bus operations */
303 	nulldev			/* power */
304 };
305 
306 /* Module linkage information for the kernel.  */
307 static struct modldrv modldrv = {
308 	&mod_driverops,		/* Driver module */
309 	"IB nexus %I%",		/* Driver name and version */
310 	&ibnex_ops,		/* driver ops */
311 };
312 
313 static struct modlinkage modlinkage = {
314 	MODREV_1, (void *)&modldrv, NULL
315 };
316 
317 /*
318  * Global per-instance IB Nexus data.
319  * There is only one instance of IB Nexus supported.
320  */
321 ibnex_t ibnex;
322 #ifdef __lock_lint
323 extern ibdm_t ibdm;
324 #endif
325 _NOTE(MUTEX_PROTECTS_DATA(ibnex.ibnex_mutex, ibnex_s))
326 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibnex.ibnex_num_comm_svcs
327 	ibnex.ibnex_comm_svc_names ibnex.ibnex_nvppa_comm_svcs
328 	ibnex.ibnex_vppa_comm_svc_names ibnex.ibnex_nhcasvc_comm_svcs
329 	ibnex.ibnex_hcasvc_comm_svc_names))
330 _NOTE(MUTEX_PROTECTS_DATA(ibnex.ibnex_mutex, ibnex_node_data_s))
331 _NOTE(LOCK_ORDER(ibdm.ibdm_hl_mutex ibnex.ibnex_mutex))
332 
333 /* The port settling time in seconds */
334 int	ibnex_port_settling_time = 8;
335 
336 /* create an array of properties supported, easier to add new ones here */
337 static struct ibnex_property {
338 	char			*name;
339 	ibnex_node_type_t	type;
340 } ibnex_properties[]  = {
341 	{ "port-svc-list",  IBNEX_PORT_COMMSVC_NODE},
342 	{ "vppa-svc-list",  IBNEX_VPPA_COMMSVC_NODE},
343 	{ "hca-svc-list",	IBNEX_HCASVC_COMMSVC_NODE}
344 };
345 
346 #define	N_IBNEX_PROPS	(sizeof (ibnex_properties))/ \
347 				(sizeof (struct ibnex_property))
348 
349 /*
350  * Event Definition
351  *	Single event, event name defined in ibti_common.h.
352  *	Event posted to specific child handler. Event posted
353  *	at kernel priority.
354  */
355 static ndi_event_definition_t ibnex_ndi_event_defs[] = {
356 	{IB_EVENT_TAG_PROP_UPDATE,  IB_PROP_UPDATE_EVENT, EPL_KERNEL,
357 		NDI_EVENT_POST_TO_TGT}
358 };
359 
360 #define	IB_N_NDI_EVENTS	\
361 	(sizeof (ibnex_ndi_event_defs) / sizeof (ndi_event_definition_t))
362 
363 static ndi_event_set_t ib_ndi_events = {
364 	NDI_EVENTS_REV1, IB_N_NDI_EVENTS, ibnex_ndi_event_defs};
365 static int	ibnex_hw_status = IBNEX_DEVTREE_NOT_CHECKED;
366 
367 
368 /*
369  * _init
370  *	Loadable module init, called before any other module.
371  */
372 int
373 _init(void)
374 {
375 	int	error;
376 	char	**hca_driver_list;
377 	int	i, ndrivers;
378 
379 	if (ibnex_hw_status == IBNEX_DEVTREE_NOT_CHECKED) {
380 		ibnex_hw_status = IBNEX_HW_NOT_IN_DEVTREE;
381 		hca_driver_list = mdi_get_phci_driver_list("ib", &ndrivers);
382 		for (i = 0; i < ndrivers; i++) {
383 			ibnex_hw_in_dev_tree(hca_driver_list[i]);
384 			if (ibnex_hw_status == IBNEX_HW_IN_DEVTREE)
385 				break;
386 		}
387 		mdi_free_phci_driver_list(hca_driver_list, ndrivers);
388 	}
389 
390 	/*
391 	 * IB Nexus _init can be called while force attaching
392 	 * IB Nexus driver or when a HCA is hotplugged.
393 	 *
394 	 * If IB HW is not in device tree or if no HCA driver
395 	 * has been attached, fail IB Nexus _init().
396 	 */
397 	if (ibnex_hw_status == IBNEX_HW_NOT_IN_DEVTREE &&
398 	    ibt_hw_is_present() == 0) {
399 		IBTF_DPRINTF_L4("ibnex", "\t_init: NO IB HW");
400 		return (DDI_FAILURE);
401 	}
402 
403 	IBTF_DPRINTF_L4("ibnex", "\t_init");
404 	mutex_init(&ibnex.ibnex_mutex, NULL, MUTEX_DRIVER, NULL);
405 	cv_init(&ibnex.ibnex_reprobe_cv, NULL, CV_DRIVER, NULL);
406 	if ((error = mod_install(&modlinkage)) != 0) {
407 		IBTF_DPRINTF_L2("ibnex", "\t_init: mod_install failed");
408 		mutex_destroy(&ibnex.ibnex_mutex);
409 		cv_destroy(&ibnex.ibnex_reprobe_cv);
410 	} else {
411 		ibdm_ibnex_register_callback(ibnex_dm_callback);
412 		ibtl_ibnex_register_callback(ibnex_ibtl_callback);
413 	}
414 	return (error);
415 }
416 
417 
418 /*
419  * _fini
420  *	Prepares a module for unloading.
421  */
422 int
423 _fini(void)
424 {
425 	int	error;
426 
427 	IBTF_DPRINTF_L4("ibnex", "\t_fini");
428 	if ((error = mod_remove(&modlinkage)) != 0) {
429 		return (error);
430 	}
431 	ibdm_ibnex_unregister_callback();
432 	ibtl_ibnex_unregister_callback();
433 	mutex_destroy(&ibnex.ibnex_mutex);
434 	cv_destroy(&ibnex.ibnex_reprobe_cv);
435 	return (0);
436 }
437 
438 
439 /*
440  * _info
441  *	Returns information about loadable module.
442  */
443 int
444 _info(struct modinfo *modinfop)
445 {
446 	IBTF_DPRINTF_L4("ibnex", "\t_info");
447 	return (mod_info(&modlinkage, modinfop));
448 }
449 
450 
451 /*
452  * ibnex_attach
453  *	Configure and attach an instance of the IB Nexus driver
454  *	Only one instance of IB Nexus is supported
455  *	Create a minor node for cfgadm purpose
456  *	Initialize communication services
457  *	Register callback with IBDM
458  *	Register callback with IBTL
459  */
460 static int
461 ibnex_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
462 {
463 	int		i;
464 	int		instance = ddi_get_instance(dip);
465 
466 	IBTF_DPRINTF_L4("ibnex", "\tattach: device = %p cmd = %x)", dip, cmd);
467 
468 	switch (cmd) {
469 	case DDI_ATTACH:
470 		break;
471 	case DDI_RESUME:
472 		IBTF_DPRINTF_L4("ibnex", "\tattach: RESUME");
473 		return (DDI_SUCCESS);
474 	default:
475 		return (DDI_FAILURE);
476 	}
477 
478 	/* Fail attach for more than one instance */
479 	mutex_enter(&ibnex.ibnex_mutex);
480 	if (ibnex.ibnex_dip != NULL) {
481 		mutex_exit(&ibnex.ibnex_mutex);
482 		return (DDI_FAILURE);
483 	}
484 	mutex_exit(&ibnex.ibnex_mutex);
485 
486 	/* Register with MPxIO framework */
487 
488 	if (mdi_vhci_register(MDI_HCI_CLASS_IB, dip, &ibnex_vhci_ops, 0)
489 	    != MDI_SUCCESS) {
490 		IBTF_DPRINTF_L2("ibnex",
491 		    "\tattach: mdi_vhci_register() failed");
492 		return (DDI_FAILURE);
493 	}
494 
495 
496 	/*
497 	 * Create the "fabric" devctl minor-node for IB DR support.
498 	 * The minor number for the "devctl" node is in the same format
499 	 * as the AP minor nodes.
500 	 */
501 	if (ddi_create_minor_node(dip, IBNEX_FABRIC, S_IFCHR, instance,
502 	    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
503 		IBTF_DPRINTF_L2("ibnex",
504 		    "\tattach: failed to create fabric minornode");
505 		(void) mdi_vhci_unregister(dip, 0);
506 		return (DDI_FAILURE);
507 	}
508 
509 
510 	/*
511 	 * Set pm-want-child-notification property for
512 	 * power management of the phci and client
513 	 */
514 	if (ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP,
515 	    "pm-want-child-notification?", NULL, NULL) != DDI_PROP_SUCCESS) {
516 		IBTF_DPRINTF_L2("ibnex",
517 		    "_attach: create pm-want-child-notification failed");
518 		(void) ddi_remove_minor_node(dip, NULL);
519 		(void) mdi_vhci_unregister(dip, 0);
520 		return (DDI_FAILURE);
521 	}
522 
523 	mutex_enter(&ibnex.ibnex_mutex);
524 	ibnex.ibnex_dip  = dip;
525 	mutex_exit(&ibnex.ibnex_mutex);
526 
527 	/*
528 	 * Event Handling: Definition and Binding.
529 	 */
530 	if (ndi_event_alloc_hdl(dip, 0, &ibnex.ibnex_ndi_event_hdl,
531 	    NDI_SLEEP) != NDI_SUCCESS) {
532 		(void) ddi_remove_minor_node(dip, NULL);
533 		IBTF_DPRINTF_L2("ibnex",
534 		    "_attach: ndi_event_alloc_hdl failed");
535 		(void) mdi_vhci_unregister(dip, 0);
536 		return (DDI_FAILURE);
537 	}
538 	if (ndi_event_bind_set(ibnex.ibnex_ndi_event_hdl, &ib_ndi_events,
539 	    NDI_SLEEP) != NDI_SUCCESS) {
540 		(void) ddi_remove_minor_node(dip, NULL);
541 		(void) ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl);
542 		IBTF_DPRINTF_L2("ibnex",
543 		    "_attach: ndi_event_bind_set failed");
544 		(void) mdi_vhci_unregister(dip, 0);
545 		return (DDI_FAILURE);
546 	}
547 
548 	for (i = 0; i < N_IBNEX_PROPS; i++) {
549 		if (ibnex_comm_svc_init(ibnex_properties[i].name,
550 		    ibnex_properties[i].type) != IBNEX_SUCCESS) {
551 			ibnex_comm_svc_fini();
552 			(void) ndi_event_unbind_set(ibnex.ibnex_ndi_event_hdl,
553 			    &ib_ndi_events, NDI_SLEEP);
554 			(void) ddi_remove_minor_node(dip, NULL);
555 			(void) ndi_event_free_hdl(
556 			    ibnex.ibnex_ndi_event_hdl);
557 			ibnex.ibnex_ndi_event_hdl = NULL;
558 			IBTF_DPRINTF_L2("ibnex", "_attach: ibnex_comm_svc_init"
559 			    " failed %s", ibnex_properties[i].name);
560 			(void) mdi_vhci_unregister(dip, 0);
561 			return (DDI_FAILURE);
562 		}
563 	}
564 
565 	/*
566 	 * before anything else comes up:
567 	 * Initialize the internal list of pseudo device nodes by
568 	 * getting all pseudo children of "ib" and processing them.
569 	 */
570 	ibnex_pseudo_initnodes();
571 
572 	return (DDI_SUCCESS);
573 }
574 
575 
576 /*
577  * ibnex_getinfo()
578  * Given the device number, return the devinfo pointer or the
579  * instance number.
580  * Note: always succeed DDI_INFO_DEVT2INSTANCE, even before attach.
581  */
582 
583 /*ARGSUSED*/
584 static int
585 ibnex_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
586 {
587 	int ret = DDI_SUCCESS;
588 
589 	IBTF_DPRINTF_L4("ibnex", "\tgetinfo: Begin");
590 	switch (cmd) {
591 	case DDI_INFO_DEVT2DEVINFO:
592 		if (ibnex.ibnex_dip != NULL)
593 			*result = ibnex.ibnex_dip;
594 		else {
595 			*result = NULL;
596 			ret = DDI_FAILURE;
597 		}
598 		break;
599 
600 	case DDI_INFO_DEVT2INSTANCE:
601 		*result = 0;
602 		break;
603 
604 	default:
605 		ret = DDI_FAILURE;
606 	}
607 	return (ret);
608 }
609 
610 
611 /*
612  * ibnex_detach
613  *	Unregister callback with the IBDM
614  *	Unregister callback with the IBTL
615  *	Uninitialize the communication entries
616  *	Remove all the minor nodes created by this instance
617  */
618 static int
619 ibnex_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
620 {
621 
622 	IBTF_DPRINTF_L4("ibnex", "\tdetach: dip = %p cmd = %x)", dip, cmd);
623 
624 	switch (cmd) {
625 
626 	case DDI_DETACH:
627 		break;
628 	case DDI_SUSPEND:
629 		IBTF_DPRINTF_L4("ibnex", "\t_detach: Suspend");
630 		return (DDI_SUCCESS);
631 	default:
632 		return (DDI_FAILURE);
633 	}
634 
635 	mutex_enter(&ibnex.ibnex_mutex);
636 	if (ibt_hw_is_present()) {
637 		IBTF_DPRINTF_L2("ibnex",
638 		    "\tdetach: IB HW is present ");
639 		mutex_exit(&ibnex.ibnex_mutex);
640 		return (DDI_FAILURE);
641 	}
642 	if (ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl)) {
643 		IBTF_DPRINTF_L2("ibnex",
644 		    "\tdetach: ndi_event_free_hdl() failed");
645 		mutex_exit(&ibnex.ibnex_mutex);
646 		return (DDI_FAILURE);
647 	}
648 	ibnex.ibnex_ndi_event_hdl = NULL;
649 	ibnex.ibnex_prop_update_evt_cookie = NULL;
650 
651 	ibnex_pseudo_node_cleanup();
652 	ibnex_comm_svc_fini();
653 	ibnex_ioc_node_cleanup();
654 
655 	(void) ddi_remove_minor_node(dip, NULL);
656 	ibnex.ibnex_dip = NULL;
657 	mutex_exit(&ibnex.ibnex_mutex);
658 	(void) mdi_vhci_unregister(dip, 0);
659 	return (DDI_SUCCESS);
660 }
661 
662 
663 /*
664  * ibnex_pseudo_node_cleanup()
665  *	This checks if all the "dips" have been deallocated (implying
666  *	that all the children have been unconfigured) first.
667  *	If not, it just returns.
668  *	If yes, then it frees up memory allocated for devi_name,
669  *	node_addr, and property list.
670  */
671 static void
672 ibnex_pseudo_node_cleanup(void)
673 {
674 	ibnex_node_data_t	*nodep =  ibnex.ibnex_pseudo_node_head;
675 	ibnex_pseudo_node_t	*pseudo;
676 
677 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup:");
678 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
679 
680 	for (; nodep; nodep = nodep->node_next)
681 		if (nodep->node_dip)
682 			return;
683 
684 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup: freeing up memory");
685 	for (nodep =  ibnex.ibnex_pseudo_node_head; nodep;
686 	    nodep = nodep->node_next) {
687 
688 		pseudo = &nodep->node_data.pseudo_node;
689 		if (pseudo->pseudo_node_addr) {
690 			kmem_free(pseudo->pseudo_node_addr,
691 			    strlen(pseudo-> pseudo_node_addr) + 1);
692 			pseudo->pseudo_node_addr = NULL;
693 		}
694 
695 		if (pseudo->pseudo_devi_name) {
696 			kmem_free(pseudo->pseudo_devi_name,
697 			    strlen(pseudo-> pseudo_devi_name) + 1);
698 			pseudo->pseudo_devi_name = NULL;
699 		}
700 
701 		if (pseudo->pseudo_unit_addr) {
702 			kmem_free(pseudo->pseudo_unit_addr,
703 			    pseudo->pseudo_unit_addr_len);
704 		}
705 	}
706 }
707 
708 
709 /*
710  * This functions wakes up any reprobe requests waiting for completion
711  * of reprobe of this IOC. It also send an NDI event, if  :
712  *
713  *	notify_flag is set. This is set if :
714  *		ibt_reprobe_ioc has returned with SUCCESS
715  *		IBTF client has not been notified for this node.
716  *	node_data->node_dip != NULL
717  *	node_state has IBNEX_NODE_REPROBE_NOTIFY_ALWAYS set
718  *	An NDI event cookie has been registered.
719  */
720 static void
721 ibnex_wakeup_reprobe_ioc(ibnex_node_data_t *node_data, int notify_flag)
722 {
723 	ddi_eventcookie_t	evt_cookie;
724 
725 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
726 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
727 
728 	if ((ibnex.ibnex_reprobe_state == IBNEX_REPROBE_IOC_WAIT) ||
729 	    (node_data->node_reprobe_state != 0)) {
730 		if (notify_flag && (node_data->node_dip != NULL) &&
731 		    (node_data->node_state &
732 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS) &&
733 		    (evt_cookie != NULL)) {
734 			ibt_prop_update_payload_t	evt_data;
735 
736 			mutex_exit(&ibnex.ibnex_mutex);
737 
738 			bzero(&evt_data, sizeof (evt_data));
739 			if (ndi_post_event(ibnex.ibnex_dip,
740 			    node_data->node_dip,
741 			    evt_cookie, &evt_data) != NDI_SUCCESS)
742 				IBTF_DPRINTF_L2("ibnex",
743 				    "\tndi_post_event failed\n");
744 
745 			mutex_enter(&ibnex.ibnex_mutex);
746 		}
747 
748 		node_data->node_reprobe_state = 0;
749 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
750 	}
751 	node_data->node_reprobe_state = 0;
752 }
753 
754 /*
755  * This function wakes up any reprobe request waiting for completion
756  * of reprobe of all IOCs.
757  */
758 static void
759 ibnex_wakeup_reprobe_all()
760 {
761 	ibnex_node_data_t *ioc_node;
762 
763 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
764 
765 	/* Notify if another reprobe_all is pending */
766 	if (ibnex.ibnex_reprobe_state == IBNEX_REPROBE_ALL_WAIT) {
767 		ibnex.ibnex_reprobe_state = 0;
768 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
769 	}
770 	ibnex.ibnex_reprobe_state = 0;
771 
772 	/*
773 	 * The IOC may be hot-removed after the reprobe request.
774 	 * Reset the reprobe states for such IOCs.
775 	 */
776 	for (ioc_node = ibnex.ibnex_ioc_node_head; ioc_node;
777 	    ioc_node = ioc_node->node_next) {
778 		if (ioc_node->node_reprobe_state != 0) {
779 			ibnex_wakeup_reprobe_ioc(ioc_node, 1);
780 		}
781 	}
782 }
783 
784 /*
785  * ibnex_ibnex_callback:
786  *	IBTL_IBNEX_IBC_INIT:
787  *		Called from ibc_init() which is called from
788  *		HCA driver _init entry point
789  *		Initializes the HCA dev_ops structure with default
790  *		IB nexus structure.
791  *	IBTL_IBNEX_IBC_FINI:
792  *		Called from ibc_fini() which is called from
793  *		HCA driver _fini entry point
794  *		Un-Initializes the HCA dev_ops structure with default
795  *		IB nexus strucuture.
796  *	Returns IBT_SUCCESS
797  */
798 ibt_status_t
799 ibnex_ibtl_callback(ibtl_ibnex_cb_args_t *cb_args)
800 {
801 	int			retval = IBT_SUCCESS;
802 	struct dev_ops 		*hca_dev_ops;
803 	dev_info_t		*clnt_dip;
804 	ibnex_node_data_t	*node_data;
805 
806 	IBTF_DPRINTF_L5("ibnex", "\tibtl_callback");
807 
808 	switch (cb_args->cb_flag) {
809 	case IBTL_IBNEX_IBC_INIT:
810 		/*
811 		 * Get the devops structure of the HCA,
812 		 * and put IB nexus default busops vector in its place.
813 		 */
814 		hca_dev_ops = ((struct modldrv *)
815 		    (cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
816 		ASSERT((hca_dev_ops) && (hca_dev_ops->devo_bus_ops == NULL));
817 		hca_dev_ops->devo_bus_ops = &ibnex_ci_busops;
818 		break;
819 
820 	case IBTL_IBNEX_IBC_FINI:
821 		hca_dev_ops = ((struct modldrv *)
822 		    (cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
823 		hca_dev_ops->devo_bus_ops = NULL;
824 		break;
825 
826 	case IBTL_IBNEX_REPROBE_DEV_REQ:
827 		/* IBTL pass down request for ibt_reprobe_dev */
828 		clnt_dip = cb_args->cb_dip;
829 		ASSERT(clnt_dip);
830 
831 		node_data = ddi_get_parent_data(clnt_dip);
832 		ASSERT(node_data);
833 
834 		/* Reprobe for IOC nodes only */
835 		ASSERT(node_data->node_type == IBNEX_IOC_NODE);
836 
837 		/*
838 		 * Start the reprobe. This could sleep as it is not
839 		 * from interrupt context.
840 		 */
841 		if (taskq_dispatch(system_taskq, ibnex_handle_reprobe_dev,
842 		    clnt_dip, TQ_SLEEP) == 0) {
843 			IBTF_DPRINTF_L2("ibnex",
844 			    "ibnex_ibtl_callback: taskq_dispatch failed");
845 			mutex_enter(&ibnex.ibnex_mutex);
846 			ibnex_wakeup_reprobe_ioc(node_data, 0);
847 			mutex_exit(&ibnex.ibnex_mutex);
848 			return (IBT_INSUFF_KERNEL_RESOURCE);
849 		}
850 		return (IBT_SUCCESS);
851 	}
852 
853 	return (retval);
854 }
855 
856 
857 /*
858  * Bus-ops entry points
859  */
860 
861 /*
862  * ibnex_map_fault
863  * 	IOC drivers need not map memory. Return failure to fail any
864  *	such calls.
865  */
866 /*ARGSUSED*/
867 static int
868 ibnex_map_fault(dev_info_t *dip, dev_info_t *rdip, struct hat *hat,
869     struct seg *seg, caddr_t addr, struct devpage *dp, pfn_t pfn,
870     uint_t prot, uint_t lock)
871 {
872 	return (DDI_FAILURE);
873 }
874 
875 
876 /*
877  * ibnex_busctl
878  * 	bus_ctl bus_ops entry point
879  */
880 /*ARGSUSED*/
881 static int
882 ibnex_busctl(dev_info_t *dip, dev_info_t *rdip,
883     ddi_ctl_enum_t ctlop, void *arg, void *result)
884 {
885 	dev_info_t		*child_dip;
886 
887 	IBTF_DPRINTF_L4("ibnex",
888 	    "\tbusctl: dip = %p, rdip = %p, ctlop = %x,", dip, rdip, ctlop);
889 	IBTF_DPRINTF_L4("ibnex", "\tbusctl: targ = %p, result %p", arg, result);
890 
891 	switch (ctlop) {
892 	case DDI_CTLOPS_REPORTDEV:
893 		if (rdip == NULL) {
894 			return (DDI_FAILURE);
895 		}
896 
897 		/* Log the relevant details of dip to sysbuf */
898 		cmn_err(CE_CONT, "?IB device: %s@%s, %s%d\n",
899 		    ddi_node_name(rdip), ddi_get_name_addr(rdip),
900 		    ddi_driver_name(rdip), ddi_get_instance(rdip));
901 
902 		return (DDI_SUCCESS);
903 
904 	case DDI_CTLOPS_INITCHILD:
905 		child_dip = (dev_info_t *)arg;
906 		return (ibnex_init_child(child_dip));
907 
908 	case DDI_CTLOPS_UNINITCHILD:
909 		child_dip = (dev_info_t *)arg;
910 		ddi_set_name_addr(child_dip, NULL);
911 		return (DDI_SUCCESS);
912 
913 	case DDI_CTLOPS_ATTACH:
914 	case DDI_CTLOPS_DETACH:
915 	case DDI_CTLOPS_POWER :
916 		return (DDI_SUCCESS);
917 
918 	case DDI_CTLOPS_SIDDEV:
919 		/*
920 		 * Return DDI_SUCCESS for IOC/PORT/VPPA nodes and
921 		 * DDI_FAILURE for the nodes enumerated by a Pseudo file.
922 		 */
923 		return (ndi_dev_is_persistent_node(rdip) ?
924 		    DDI_SUCCESS : DDI_FAILURE);
925 
926 
927 	case DDI_CTLOPS_IOMIN:
928 		/*
929 		 * Return DDI_SUCCESS, so that consistent buf alloc
930 		 * gets the default DMA IO minimum for the platform
931 		 */
932 		return (DDI_SUCCESS);
933 
934 	/*
935 	 * These ops correspond to functions that "shouldn't" be
936 	 * called by IB Nexus driver.
937 	 */
938 	case DDI_CTLOPS_DMAPMAPC:
939 	case DDI_CTLOPS_REPORTINT:
940 	case DDI_CTLOPS_REGSIZE:
941 	case DDI_CTLOPS_NREGS:
942 	case DDI_CTLOPS_SLAVEONLY:
943 	case DDI_CTLOPS_AFFINITY:
944 	case DDI_CTLOPS_POKE:
945 	case DDI_CTLOPS_PEEK:
946 		IBTF_DPRINTF_L2("ibnex",
947 		    "%s%d: invalid op (%d) from %s inst%d",
948 		    ddi_get_name(dip), ddi_get_instance(dip),
949 		    ctlop, ddi_get_name(rdip), ddi_get_instance(rdip));
950 		return (DDI_FAILURE);
951 
952 	/*
953 	 * Everything else (PTOB/BTOP/BTOPR/DVMAPAGESIZE requests) we
954 	 * pass up
955 	 */
956 	default:
957 		return (ddi_ctlops(dip, rdip, ctlop, arg, result));
958 	}
959 }
960 
961 
962 /*
963  * ibnex_init_child()
964  *
965  * Initialize a child device node. This is called for the DDI_CTLOPS_INITCHILD
966  * entry. Function returns DDI_SUCCESS,  DDI_FAILURE or DDI_NOT_WELL_FORMED.
967  */
968 static int
969 ibnex_init_child(dev_info_t *child)
970 {
971 	int			ret;
972 	char			name[MAXNAMELEN];
973 
974 	IBTF_DPRINTF_L4("ibnex", "\tinit_child: child = %p", child);
975 
976 	/* Handle Pseudo nodes of client children */
977 	if (ndi_dev_is_persistent_node(child) == 0) {
978 		/* Skip nodes without ib-node-type="merge" */
979 		if (ibnex_is_merge_node(child) != IBNEX_SUCCESS)
980 			return (DDI_FAILURE);
981 
982 		if (ibnex_name_pseudo_child(child, name) != DDI_SUCCESS)
983 			return (DDI_FAILURE);
984 
985 		ddi_set_name_addr(child, name);
986 		/*
987 		 * Merge the .conf node
988 		 */
989 		if (ndi_merge_node(child,
990 		    ibnex_name_child) == DDI_SUCCESS) {
991 			ddi_set_name_addr(child, NULL);
992 			return (DDI_FAILURE);
993 		}
994 		return (DDI_NOT_WELL_FORMED);
995 
996 	}
997 
998 	if ((ret = ibnex_name_child(child, name, 0)) != DDI_SUCCESS)
999 		return (ret);
1000 
1001 	ddi_set_name_addr(child, name);
1002 
1003 	return (DDI_SUCCESS);
1004 }
1005 
1006 
1007 int
1008 ibnex_name_pseudo_child(dev_info_t *child, char *name)
1009 {
1010 	char **unit_addr;
1011 	uint_t n;
1012 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, child,
1013 	    DDI_PROP_DONTPASS, "unit-address", &unit_addr, &n) !=
1014 	    DDI_PROP_SUCCESS) {
1015 		IBTF_DPRINTF_L4("ibnex",
1016 		    "\tname_pseudo_child: cannot find unit-address in %s.conf",
1017 		    ddi_get_name(child));
1018 		return (DDI_FAILURE);
1019 	}
1020 	if (n != 1 || *unit_addr == NULL || **unit_addr == 0) {
1021 		cmn_err(CE_WARN, "unit-address property in %s.conf"
1022 		    " not well-formed", ddi_get_name(child));
1023 		ddi_prop_free(unit_addr);
1024 		return (DDI_FAILURE);
1025 	}
1026 	(void) snprintf(name, MAXNAMELEN, "%s", *unit_addr);
1027 	ddi_prop_free(unit_addr);
1028 	return (DDI_SUCCESS);
1029 }
1030 
1031 
1032 /*ARGSUSED*/
1033 int
1034 ibnex_name_child(dev_info_t *child, char *name, int flag)
1035 {
1036 	ibnex_pseudo_node_t	*pseudo;
1037 	ibnex_node_data_t	*node_datap;
1038 	ibnex_port_node_t	*port_node;
1039 	ibnex_ioc_node_t	*ioc;
1040 
1041 	node_datap = ddi_get_parent_data(child);
1042 	if (node_datap == NULL) {
1043 		IBTF_DPRINTF_L2("ibnex", "\tname_child: Node data is NULL");
1044 		return (DDI_NOT_WELL_FORMED);
1045 	}
1046 	IBTF_DPRINTF_L4("ibnex", "\tname_sid_child: Node data %p"
1047 	    "Node type %x", node_datap, node_datap->node_type);
1048 	switch (node_datap->node_type) {
1049 	case IBNEX_PORT_COMMSVC_NODE:
1050 		port_node = &node_datap->node_data.port_node;
1051 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1052 		    port_node->port_num,
1053 		    ibnex.ibnex_comm_svc_names[port_node->port_commsvc_idx]);
1054 		break;
1055 	case IBNEX_VPPA_COMMSVC_NODE:
1056 		port_node = &node_datap->node_data.port_node;
1057 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,%x,%s",
1058 		    port_node->port_num, port_node->port_pkey, ibnex.
1059 		    ibnex_vppa_comm_svc_names[port_node->port_commsvc_idx]);
1060 		break;
1061 	case IBNEX_HCASVC_COMMSVC_NODE:
1062 		port_node = &node_datap->node_data.port_node;
1063 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1064 		    port_node->port_num,
1065 		    ibnex.ibnex_hcasvc_comm_svc_names[port_node->
1066 		    port_commsvc_idx]);
1067 		break;
1068 	case IBNEX_IOC_NODE:
1069 		ioc = &node_datap->node_data.ioc_node;
1070 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%llX,%llX",
1071 		    (longlong_t)ioc->ioc_guid, (longlong_t)ioc->iou_guid);
1072 		break;
1073 	case IBNEX_PSEUDO_NODE:
1074 		pseudo = &node_datap->node_data.pseudo_node;
1075 		(void) snprintf(name,
1076 		    IBNEX_MAX_NODEADDR_SZ, pseudo->pseudo_unit_addr);
1077 		break;
1078 	default:
1079 		IBTF_DPRINTF_L2("ibnex", "\name_child: Not well formed");
1080 		return (DDI_NOT_WELL_FORMED);
1081 	}
1082 
1083 	return (DDI_SUCCESS);
1084 }
1085 
1086 
1087 /*
1088  * ibnex_bus_config()
1089  *
1090  * BUS_CONFIG_ONE:
1091  *	Enumerate the exact instance of the driver. Use the device node name
1092  *	to locate the exact instance.
1093  *	Query IBDM to find whether the hardware exits for the instance of the
1094  *	driver. If exists, create a device node and return NDI_SUCCESS.
1095  *
1096  * BUS_CONFIG_ALL:
1097  *	Enumerate all the instances of all the possible children (seen before
1098  *	and never seen before).
1099  *
1100  * BUS_CONFIG_DRIVER:
1101  *	Enumerate all the instances of a particular driver.
1102  */
1103 static int
1104 ibnex_bus_config(dev_info_t *parent, uint_t flag,
1105     ddi_bus_config_op_t op, void *devname, dev_info_t **child)
1106 {
1107 	int			ret = IBNEX_SUCCESS, len, circ, need_bus_config;
1108 	char 			*device_name, *cname = NULL, *caddr = NULL;
1109 	char			*device_name1;
1110 	char			*srvname, nameaddr[MAXNAMELEN];
1111 	dev_info_t		*cdip, *pdip = NULL;
1112 	ibnex_node_data_t	*node_data;
1113 	ibnex_port_node_t	*port_node;
1114 	int			use_mdi_devi_locking = 0;
1115 
1116 
1117 	/* Set use_mdi_devi_locking appropriately */
1118 	if ((mdi_component_is_phci(parent, NULL) == MDI_SUCCESS) &&
1119 	    ((op != BUS_CONFIG_ONE) || (op == BUS_CONFIG_ONE &&
1120 	    strncmp((char *)devname, IBNEX_IBPORT_CNAME, 6) != 0))) {
1121 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: using mdi_devi_enter");
1122 		use_mdi_devi_locking = 1;
1123 	}
1124 
1125 	if (use_mdi_devi_locking)
1126 		mdi_devi_enter(parent, &circ);
1127 	else
1128 		ndi_devi_enter(parent, &circ);
1129 
1130 	switch (op) {
1131 	case BUS_CONFIG_ONE:
1132 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ONE, "
1133 		    "parent %p", parent);
1134 
1135 		len = strlen((char *)devname) + 1;
1136 		device_name = i_ddi_strdup(devname, KM_SLEEP);
1137 		i_ddi_parse_name(device_name, &cname, &caddr, NULL);
1138 
1139 		if (caddr == NULL || (strlen(caddr) == 0)) {
1140 			kmem_free(device_name, len);
1141 			if (use_mdi_devi_locking)
1142 				mdi_devi_exit(parent, circ);
1143 			else
1144 				ndi_devi_exit(parent, circ);
1145 			return (NDI_FAILURE);
1146 		}
1147 
1148 		/*
1149 		 * i_ddi_parse_name() strips of the address portion
1150 		 * of the device name. Recreate device name for
1151 		 * ndi_devi_findchild
1152 		 */
1153 		device_name1 = i_ddi_strdup(devname, KM_SLEEP);
1154 
1155 		IBTF_DPRINTF_L4("ibnex",
1156 		    "\tbus_config: cname %s addr %s", cname, caddr);
1157 
1158 		cdip = ndi_devi_findchild(parent, device_name1);
1159 		kmem_free(device_name1, len);
1160 		if (cdip == NULL) {
1161 			/* Node is not present */
1162 			if (strncmp(cname, IBNEX_IOC_CNAME, 3) == 0) {
1163 				if (use_mdi_devi_locking)
1164 					mdi_devi_exit(parent, circ);
1165 				else
1166 					ndi_devi_exit(parent, circ);
1167 
1168 				ret = ibnex_ioc_bus_config_one(&parent, flag,
1169 				    op, devname, child, &need_bus_config);
1170 				if (!need_bus_config) {
1171 					kmem_free(device_name, len);
1172 					return (ret);
1173 				}
1174 
1175 				if (use_mdi_devi_locking)
1176 					mdi_devi_enter(parent, &circ);
1177 				else
1178 					ndi_devi_enter(parent, &circ);
1179 			} else if ((strncmp(cname,
1180 			    IBNEX_IBPORT_CNAME, 6) == 0) &&
1181 			    (parent != ibnex.ibnex_dip)) { /* parent is HCA */
1182 				cdip = ibnex_config_port_node(parent, devname);
1183 				if (cdip)
1184 					ret = IBNEX_SUCCESS;
1185 				else
1186 					ret = IBNEX_FAILURE;
1187 			} else {
1188 				/*
1189 				 * if not IOC or PORT device then always
1190 				 * assume a Pseudo child
1191 				 *
1192 				 * if IB Nexus is the parent, call MDI.
1193 				 * else if HCA is the parent, enumerate
1194 				 * the Pseudo node.
1195 				 */
1196 				ret = IBNEX_SUCCESS;
1197 				ibnex_pseudo_initnodes();
1198 				if (parent == ibnex.ibnex_dip) {
1199 					if (use_mdi_devi_locking)
1200 						mdi_devi_exit(parent, circ);
1201 					else
1202 						ndi_devi_exit(parent, circ);
1203 
1204 					mutex_enter(&ibnex.ibnex_mutex);
1205 					ret = ibnex_pseudo_mdi_config_one(
1206 					    flag, devname, child, cname,
1207 					    caddr);
1208 					mutex_exit(&ibnex.ibnex_mutex);
1209 					kmem_free(device_name, len);
1210 					return (ret);
1211 				}
1212 				mutex_enter(&ibnex.ibnex_mutex);
1213 				ret = ibnex_pseudo_config_one(NULL,
1214 				    caddr, parent);
1215 				mutex_exit(&ibnex.ibnex_mutex);
1216 			}
1217 		}
1218 
1219 		if (strncmp(cname, IBNEX_IBPORT_CNAME, 6) == 0) {
1220 			/* Allows enumeration under PHCI */
1221 			flag |= NDI_MDI_FALLBACK;
1222 		}
1223 		kmem_free(device_name, len);
1224 		break;
1225 
1226 	case BUS_CONFIG_OBP_ARGS:
1227 		cdip = ibnex_config_obp_args(parent, devname);
1228 		if (cdip) {
1229 			/*
1230 			 * Boot case.
1231 			 * Special handling because the "devname"
1232 			 * format for the enumerated device is
1233 			 * different.
1234 			 */
1235 			node_data = ddi_get_parent_data(cdip);
1236 			port_node = &node_data->node_data.port_node;
1237 			if (node_data->node_type ==
1238 			    IBNEX_VPPA_COMMSVC_NODE) {
1239 				srvname =
1240 				    ibnex.ibnex_vppa_comm_svc_names[
1241 				    port_node->port_commsvc_idx];
1242 				(void) snprintf(nameaddr, MAXNAMELEN,
1243 				    "ibport@%x,%x,%s",
1244 				    port_node->port_num,
1245 				    port_node->port_pkey, srvname);
1246 			}
1247 			devname = (void *)nameaddr;
1248 		} else {
1249 			IBTF_DPRINTF_L2("ibnex",
1250 			    "\tbus_config: CONFIG_OBP_ARGS : invalid state!!");
1251 
1252 			ret = IBNEX_FAILURE;
1253 		}
1254 		break;
1255 	case BUS_CONFIG_ALL:
1256 		/*FALLTHRU*/
1257 	case BUS_CONFIG_DRIVER:
1258 		if (op == BUS_CONFIG_ALL)
1259 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ALL, "
1260 			    "parent %p", parent);
1261 		else
1262 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_DRIVER"
1263 			    ", parent %p", parent);
1264 
1265 		/*
1266 		 * No locks to be held while calling mdi_vhci_bus_config()
1267 		 * ibnex_config_all_children() holds appropriate locks.
1268 		 */
1269 		if (use_mdi_devi_locking)
1270 			mdi_devi_exit(parent, circ);
1271 		else
1272 			ndi_devi_exit(parent, circ);
1273 
1274 		/*
1275 		 * Drive CONFIG requests for IB Nexus parent through
1276 		 * MDI. This is needed to load the HCA drivers in x86 SRP
1277 		 * boot case.
1278 		 *
1279 		 * CONFIG Requests with HCA parent will probe devices using
1280 		 * ibdm and configure all children.
1281 		 */
1282 		if (parent == ibnex.ibnex_dip) {
1283 			ret = mdi_vhci_bus_config(parent,
1284 			    flag, op, devname, child, NULL);
1285 			return (ret);
1286 		} else {
1287 			ibnex_config_all_children(parent);
1288 
1289 			if (use_mdi_devi_locking)
1290 				mdi_devi_enter(parent, &circ);
1291 			else
1292 				ndi_devi_enter(parent, &circ);
1293 		}
1294 		break;
1295 	default:
1296 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: error");
1297 		ret = IBNEX_FAILURE;
1298 		break;
1299 	}
1300 
1301 	if (use_mdi_devi_locking)
1302 		mdi_devi_exit(parent, circ);
1303 	else
1304 		ndi_devi_exit(parent, circ);
1305 
1306 	if (ret == IBNEX_SUCCESS) {
1307 		if (op == BUS_CONFIG_OBP_ARGS)
1308 			op = BUS_CONFIG_ONE;
1309 
1310 		if (pdip == NULL)
1311 			pdip = parent;
1312 
1313 		ret = ndi_busop_bus_config(
1314 		    pdip, flag, op, devname, child, 0);
1315 		IBTF_DPRINTF_L4("ibnex", "\tbus_config:"
1316 		    "ndi_busop_bus_config : retval %d", ret);
1317 		return (ret);
1318 	}
1319 
1320 	IBTF_DPRINTF_L2("ibnex", "\tbus_config: Failure End");
1321 	return (NDI_FAILURE);
1322 }
1323 
1324 
1325 /*
1326  * ibnex_config_root_iocnode()
1327  *	Configures one particular instance of the IOC driver.
1328  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1329  */
1330 static int
1331 ibnex_config_root_iocnode(dev_info_t *parent, char *device_name)
1332 {
1333 	int			ret, port = 0, iter = 0;
1334 	boolean_t		displayed = B_FALSE;
1335 	char			*portstr;
1336 	ib_guid_t		hca_guid, iou_guid, ioc_guid;
1337 	ibdm_ioc_info_t		*ioc_info;
1338 	ibdm_port_attr_t	*port_attr;
1339 
1340 	IBTF_DPRINTF_L4("ibnex",
1341 	    "\tconfig_root_iocnode: name %s", device_name);
1342 
1343 	portstr = strstr(device_name, ":port=");
1344 	if (portstr == NULL) {
1345 		return (IBNEX_FAILURE);
1346 	}
1347 
1348 	portstr[0] = 0; portstr++;
1349 	if (ibnex_devname2port(portstr, &port)) {
1350 		IBTF_DPRINTF_L4("ibnex", "\tconfig_root_iocnode: invalid port");
1351 		return (IBNEX_FAILURE);
1352 	}
1353 
1354 	if (ibnex_devname_to_node_n_ioc_guids(
1355 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
1356 		return (IBNEX_FAILURE);
1357 	}
1358 
1359 	(void) snprintf(device_name, (IBNEX_MAX_NODEADDR_SZ + 4),
1360 	    "ioc@%llX,%llX", (longlong_t)ioc_guid, (longlong_t)iou_guid);
1361 
1362 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1363 	if ((port_attr = ibdm_ibnex_probe_hcaport(hca_guid, port)) == NULL) {
1364 		IBTF_DPRINTF_L2("ibnex",
1365 		    "\tconfig_root_iocnode: Port does not exist");
1366 		return (IBNEX_FAILURE);
1367 	}
1368 
1369 	/* Wait until "port is up" */
1370 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1371 		ibdm_ibnex_free_port_attr(port_attr);
1372 		delay(drv_usectohz(10000));
1373 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1374 		    hca_guid, port)) == NULL) {
1375 			return (IBNEX_FAILURE);
1376 		}
1377 
1378 		if (iter++ == 400) {
1379 			if (displayed == B_FALSE) {
1380 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1381 				    "initialization", port_attr->pa_port_num);
1382 				displayed = B_TRUE;
1383 			}
1384 		}
1385 	}
1386 	ibdm_ibnex_free_port_attr(port_attr);
1387 	IBTF_DPRINTF_L4("ibnex", "\tconfig_rootioc_node:"
1388 	    "Port is initialized");
1389 
1390 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) == NULL) {
1391 		ibdm_ibnex_free_ioc_list(ioc_info);
1392 		return (IBNEX_FAILURE);
1393 	}
1394 	mutex_enter(&ibnex.ibnex_mutex);
1395 	if (ibnex_is_ioc_present(ioc_guid) == IBNEX_SUCCESS) {
1396 		IBTF_DPRINTF_L4("ibnex", "\tconfig_root_iocnode: IOC present");
1397 		ret = IBNEX_SUCCESS;
1398 	} else
1399 		ret = ibnex_ioc_initnode(ioc_info, IBNEX_DEVFS_ENUMERATE,
1400 		    parent);
1401 	mutex_exit(&ibnex.ibnex_mutex);
1402 	ibdm_ibnex_free_ioc_list(ioc_info);
1403 	return (ret);
1404 }
1405 
1406 
1407 static int
1408 ibnex_devname2port(char *portstr, int *port)
1409 {
1410 	char	*temp;
1411 	int	ret = IBNEX_FAILURE;
1412 
1413 	IBTF_DPRINTF_L4("ibnex", "\tdevname2port: Begin");
1414 
1415 	temp = strchr(portstr, '=');
1416 	if (temp != NULL) {
1417 		temp++;
1418 		*port = ibnex_str2int(temp, strlen(temp), &ret);
1419 	}
1420 	return (ret);
1421 }
1422 
1423 
1424 /*
1425  * ibnex_config_all_children()
1426  *	Wait for lata SM initialization case before enumerating the nodes
1427  *	Get list of HCA's and HCA port information
1428  *		Create device device nodes and its node properties
1429  *		for port nodes and VPPA nodes
1430  *	Get list of all the IOC node information
1431  *		Create device nodes and its properties for all the IOCs
1432  *		if not created already
1433  *	Bind drivers for all the newly created device nodes
1434  *	Support Pseudo nodes enumerated using their .conf file
1435  */
1436 static void
1437 ibnex_config_all_children(dev_info_t *parent)
1438 {
1439 	int			ii;
1440 	time_t			wait_time;
1441 	ibdm_ioc_info_t		*ioc_list, *ioc;
1442 	ibdm_hca_list_t		*hca_list;
1443 	ib_guid_t		hca_guid;
1444 	int			circ;
1445 
1446 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: Begin");
1447 
1448 	/*
1449 	 * Enumerate children of this HCA, port nodes,
1450 	 * VPPA & HCA_SVC nodes. Use ndi_devi_enter() for
1451 	 * locking. IB Nexus is enumerating the children
1452 	 * of HCA, not MPXIO clients.
1453 	 */
1454 	ndi_devi_enter(parent, &circ);
1455 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1456 	wait_time = ibdm_ibnex_get_waittime(
1457 	    hca_guid, &ibnex_port_settling_time);
1458 	if (wait_time) {
1459 		delay(drv_usectohz(wait_time * 1000000));
1460 	}
1461 	hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1462 	if (hca_list == NULL) {
1463 		ndi_devi_exit(parent, circ);
1464 		return;
1465 	}
1466 	ibnex_create_hcasvc_nodes(parent, hca_list->hl_hca_port_attr);
1467 	for (ii = 0; ii < hca_list->hl_nports; ii++) {
1468 		ibnex_create_port_nodes(
1469 		    parent, &hca_list->hl_port_attr[ii]);
1470 		ibnex_create_vppa_nodes(
1471 		    parent, &hca_list->hl_port_attr[ii]);
1472 	}
1473 	ibdm_ibnex_free_hca_list(hca_list);
1474 	ndi_devi_exit(parent, circ);
1475 
1476 	/*
1477 	 * Check if ibtc_attach() is called and the phci is
1478 	 * set up for this device before the IB nexus starts
1479 	 * enumerating MPxIO clients.
1480 	 *
1481 	 * If an HCA is in maintenance mode, its phci is not set up
1482 	 * but the driver is attached to update the firmware. In the
1483 	 * case, do not configure the MPxIO clients.
1484 	 */
1485 	if (mdi_component_is_phci(parent, NULL) == MDI_FAILURE) {
1486 		return;
1487 	}
1488 
1489 	/*
1490 	 * Use mdi_devi_enter() for locking. IB Nexus is
1491 	 * enumerating MPxIO clients.
1492 	 */
1493 	mdi_devi_enter(parent, &circ);
1494 
1495 	ibnex_pseudo_initnodes();
1496 
1497 	/* Enumerate all the IOC's */
1498 	wait_time = ibdm_ibnex_get_waittime(
1499 	    0, &ibnex_port_settling_time);
1500 	if (wait_time)
1501 		delay(drv_usectohz(wait_time * 1000000));
1502 
1503 	ioc_list = ibdm_ibnex_get_ioc_list(IBDM_IBNEX_NORMAL_PROBE);
1504 	ioc = ioc_list;
1505 
1506 	mutex_enter(&ibnex.ibnex_mutex);
1507 
1508 	while (ioc_list) {
1509 		if (ibnex_is_ioc_present(
1510 		    ioc_list->ioc_profile.ioc_guid) != IBNEX_SUCCESS) {
1511 			(void) ibnex_ioc_initnode(ioc_list,
1512 			    IBNEX_DEVFS_ENUMERATE, parent);
1513 		}
1514 		ioc_list = ioc_list->ioc_next;
1515 	}
1516 
1517 	/* Config IBTF Pseudo clients */
1518 	ibnex_config_pseudo_all(parent);
1519 
1520 	mutex_exit(&ibnex.ibnex_mutex);
1521 	ibdm_ibnex_free_ioc_list(ioc);
1522 	mdi_devi_exit(parent, circ);
1523 
1524 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: End");
1525 }
1526 
1527 
1528 /*
1529  * ibnex_create_port_nodes:
1530  *	Creates a device node per each communication service defined
1531  *	in the "port-commsvc-list" property per HCA port
1532  */
1533 static void
1534 ibnex_create_port_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1535 {
1536 	int		idx;
1537 	dev_info_t	*dip;
1538 	int		rval;
1539 
1540 	mutex_enter(&ibnex.ibnex_mutex);
1541 	for (idx = 0; idx < ibnex.ibnex_num_comm_svcs; idx++) {
1542 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1543 		    idx, 0, &dip);
1544 		if (rval != IBNEX_SUCCESS) {
1545 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1546 			    IBNEX_PORT_COMMSVC_NODE, 0, &rval,
1547 			    IBNEX_DEVFS_ENUMERATE);
1548 		}
1549 	}
1550 	mutex_exit(&ibnex.ibnex_mutex);
1551 }
1552 
1553 
1554 /*
1555  * ibnex_create_vppa_nodes:
1556  *	Creates a device node per each communication service defined
1557  *	in the "vppa-commsvc-list" property and per each PKEY that
1558  *	this particular port supports and per HCA port
1559  */
1560 static void
1561 ibnex_create_vppa_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1562 {
1563 	int 		idx, ii;
1564 	int		rval;
1565 	ib_pkey_t 	pkey;
1566 	dev_info_t	*dip;
1567 
1568 	IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: Begin");
1569 
1570 	mutex_enter(&ibnex.ibnex_mutex);
1571 	if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1572 		IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: "
1573 		    "Port %d is down", port_attr->pa_port_num);
1574 		mutex_exit(&ibnex.ibnex_mutex);
1575 		return;
1576 	}
1577 	for (idx = 0; idx < ibnex.ibnex_nvppa_comm_svcs; idx++) {
1578 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1579 			pkey = port_attr->pa_pkey_tbl[ii].pt_pkey;
1580 
1581 			if (IBNEX_INVALID_PKEY(pkey)) {
1582 				continue;
1583 			}
1584 			rval = ibnex_get_dip_from_guid(
1585 			    port_attr->pa_port_guid, idx, pkey, &dip);
1586 			if (rval != IBNEX_SUCCESS) {
1587 				(void) ibnex_commsvc_initnode(parent, port_attr,
1588 				    idx, IBNEX_VPPA_COMMSVC_NODE,
1589 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1590 				IBTF_DPRINTF_L5("ibnex", "\tcreate_vppa_nodes: "
1591 				    "commsvc_initnode failed rval %x", rval);
1592 			}
1593 		}
1594 	}
1595 	mutex_exit(&ibnex.ibnex_mutex);
1596 }
1597 
1598 
1599 /*
1600  * ibnex_create_hcasvc_nodes:
1601  *	Creates a device node per each communication service defined
1602  *	in the "port-commsvc-list" property per HCA port
1603  */
1604 static void
1605 ibnex_create_hcasvc_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1606 {
1607 	int		idx;
1608 	dev_info_t	*dip;
1609 	int		rval;
1610 
1611 	mutex_enter(&ibnex.ibnex_mutex);
1612 	for (idx = 0; idx < ibnex.ibnex_nhcasvc_comm_svcs; idx++) {
1613 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1614 		    idx, 0, &dip);
1615 		if (rval != IBNEX_SUCCESS) {
1616 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1617 			    IBNEX_HCASVC_COMMSVC_NODE, 0, &rval,
1618 			    IBNEX_DEVFS_ENUMERATE);
1619 			IBTF_DPRINTF_L5("ibnex", "create_hcasvc_nodes: "
1620 			    "commsvc_initnode failed, rval %x", rval);
1621 		}
1622 	}
1623 	mutex_exit(&ibnex.ibnex_mutex);
1624 }
1625 
1626 /*
1627  * ibnex_is_ioc_present()
1628  *	Returns IBNEX_SUCCESS if an entry found in the global linked list
1629  *	Returns IBNEX_FAILURE, if no match found
1630  */
1631 static int
1632 ibnex_is_ioc_present(ib_guid_t ioc_guid)
1633 {
1634 	ibnex_node_data_t	*head;
1635 	ibnex_ioc_node_t	*ioc;
1636 	int			ret = IBNEX_FAILURE;
1637 
1638 	IBTF_DPRINTF_L4("ibnex", "\tis_ioc_present: Begin");
1639 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
1640 
1641 	head = ibnex.ibnex_ioc_node_head;
1642 	while (head) {
1643 		ioc = &head->node_data.ioc_node;
1644 		if (ioc->ioc_guid == ioc_guid)
1645 			break;
1646 		head = head->node_next;
1647 	}
1648 	if (head)
1649 		ret = IBNEX_SUCCESS;
1650 
1651 	return (ret);
1652 }
1653 
1654 
1655 /*
1656  * ibnex_bus_unconfig()
1657  *
1658  *	Unconfigure a particular device node or all instance of a device
1659  *	driver device or all children of IBnex
1660  */
1661 static int
1662 ibnex_bus_unconfig(dev_info_t *parent,
1663     uint_t flag, ddi_bus_config_op_t op, void *device_name)
1664 {
1665 	return (ndi_busop_bus_unconfig(parent, flag, op, device_name));
1666 }
1667 
1668 
1669 /*
1670  * ibnex_config_port_node()
1671  *
1672  *	Configures a particular port / HCA  node for a particular
1673  *	communication service.
1674  *	The format of the device_name is
1675  *		ibport@<Port#>,<pkey>,<service name>
1676  *	where pkey = 0 for port communication service nodes
1677  *		  Port# = 0 for HCA_SVC communication service nodes
1678  *	Returns "dev_info_t" of the "child" node just created
1679  *	NULL when failed to enumerate the child node
1680  */
1681 static dev_info_t *
1682 ibnex_config_port_node(dev_info_t *parent, char *devname)
1683 {
1684 	int			ii, index;
1685 	int			rval;
1686 	time_t			wait_time;
1687 	uint8_t			port_num;
1688 	ib_guid_t		hca_guid, port_guid;
1689 	ib_pkey_t		pkey;
1690 	dev_info_t		*cdip;
1691 	ibdm_port_attr_t	*port_attr;
1692 	ibdm_hca_list_t		*hca_list;
1693 
1694 	IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: %s", devname);
1695 
1696 	if (ibnex_get_pkey_commsvc_index_portnum(devname,
1697 	    &index, &pkey, &port_num) != IBNEX_SUCCESS) {
1698 		IBTF_DPRINTF_L2("ibnex",
1699 		    "\tconfig_port_node: Invalid Service Name");
1700 		return (NULL);
1701 	}
1702 
1703 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1704 	if (port_num == 0) {
1705 		/*
1706 		 * Use the dummy port attribute for HCA node in hca_list
1707 		 * Note : pa_state is always IBT_PORT_ACTIVE.
1708 		 */
1709 		hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1710 		ASSERT(hca_list != NULL);
1711 		port_attr = hca_list->hl_hca_port_attr;
1712 	} else {
1713 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1714 		    hca_guid, port_num)) == NULL) {
1715 			IBTF_DPRINTF_L2("ibnex",
1716 			    "\tconfig_port_node: Port does not exist");
1717 			return (NULL);
1718 		}
1719 
1720 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1721 			wait_time = ibdm_ibnex_get_waittime(
1722 			    hca_guid, &ibnex_port_settling_time);
1723 			if (wait_time) {
1724 				delay(drv_usectohz(wait_time * 1000000));
1725 			}
1726 			ibdm_ibnex_free_port_attr(port_attr);
1727 			if ((port_attr = ibdm_ibnex_probe_hcaport(
1728 			    hca_guid, port_num)) == NULL) {
1729 				return (NULL);
1730 			}
1731 		}
1732 	}
1733 
1734 	port_guid = port_attr->pa_port_guid;
1735 	mutex_enter(&ibnex.ibnex_mutex);
1736 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1737 	    &cdip)) == IBNEX_SUCCESS) {
1738 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1739 		mutex_exit(&ibnex.ibnex_mutex);
1740 		if (port_num != 0)
1741 			ibdm_ibnex_free_port_attr(port_attr);
1742 		else
1743 			ibdm_ibnex_free_hca_list(hca_list);
1744 		return (cdip);
1745 	}
1746 
1747 	if (pkey == 0 && port_num != 0) {
1748 		cdip = ibnex_commsvc_initnode(parent,
1749 		    port_attr, index, IBNEX_PORT_COMMSVC_NODE, pkey, &rval,
1750 		    IBNEX_DEVFS_ENUMERATE);
1751 		IBTF_DPRINTF_L5("ibnex",
1752 		    "\t ibnex_commsvc_initnode rval %x", rval);
1753 	} else if (pkey == 0 && port_num == 0) {
1754 		cdip = ibnex_commsvc_initnode(parent,
1755 		    port_attr, index, IBNEX_HCASVC_COMMSVC_NODE, pkey, &rval,
1756 		    IBNEX_DEVFS_ENUMERATE);
1757 		IBTF_DPRINTF_L5("ibnex",
1758 		    "\t ibnex_commsvc_initnode rval %x", rval);
1759 	} else {
1760 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1761 			IBTF_DPRINTF_L4("ibnex", "\tconfig_port_nodes: "
1762 			    "Port %d is down", port_attr->pa_port_num);
1763 			ibdm_ibnex_free_port_attr(port_attr);
1764 			mutex_exit(&ibnex.ibnex_mutex);
1765 			return (NULL);
1766 		}
1767 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1768 			if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1769 				cdip = ibnex_commsvc_initnode(parent, port_attr,
1770 				    index, IBNEX_VPPA_COMMSVC_NODE,
1771 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1772 				IBTF_DPRINTF_L5("ibnex",
1773 				    "\t ibnex_commsvc_initnode rval %x", rval);
1774 				break;
1775 			}
1776 		}
1777 	}
1778 	mutex_exit(&ibnex.ibnex_mutex);
1779 	if (port_num != 0)
1780 		ibdm_ibnex_free_port_attr(port_attr);
1781 	else
1782 		ibdm_ibnex_free_hca_list(hca_list);
1783 	return (cdip);
1784 }
1785 
1786 
1787 /*
1788  * ibnex_config_obp_args()
1789  *	Configures a particular port node for a IP over IB communication
1790  *	service.
1791  *	The format of the input string "devname" is
1792  *		port=x,pkey=y,protocol=ip,<wanboot options>
1793  *	Thr format of the node name created here is
1794  *		ibport@<Port#>,<pkey>,<service name>
1795  *	where pkey = 0 for port communication service nodes
1796  *	Returns "dev_info_t" of the "child" node just created
1797  *	NULL when failed to enumerate the child node
1798  *
1799  */
1800 static dev_info_t *
1801 ibnex_config_obp_args(dev_info_t *parent, char *devname)
1802 {
1803 	int			ii, index;
1804 	int			rval, iter = 0;
1805 	char			*temp;
1806 	uint8_t			port_num;
1807 	ib_guid_t		hca_guid, port_guid;
1808 	ib_pkey_t		pkey;
1809 	dev_info_t		*cdip;
1810 	boolean_t		displayed = B_FALSE;
1811 	ibdm_port_attr_t	*port_attr;
1812 
1813 	IBTF_DPRINTF_L4("ibnex", "\tconfig_obp_args: %s", devname);
1814 
1815 	/* Is this OBP node for IPoIB ? */
1816 	temp = devname;
1817 	do {
1818 		temp = strstr(temp, ",protocol=ip");
1819 		if (temp == NULL)
1820 			break;
1821 
1822 		if (strlen(devname) > (int)((temp - devname) + 12)) {
1823 			if (temp[12] == ',')
1824 				break;
1825 		} else {
1826 			break;
1827 		}
1828 		temp++;
1829 	} while (temp);
1830 
1831 	if (temp == NULL)
1832 		return (NULL);
1833 	if (ibnex_prom_devname_to_pkey_n_portnum(
1834 	    devname, &pkey, &port_num) != IBNEX_SUCCESS) {
1835 		return (NULL);
1836 	}
1837 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
1838 		if (strcmp(ibnex.ibnex_vppa_comm_svc_names[index],
1839 		    "ipib") == 0) {
1840 			break;
1841 		}
1842 	}
1843 
1844 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1845 	if ((port_attr = ibdm_ibnex_probe_hcaport(
1846 	    hca_guid, port_num)) == NULL) {
1847 		IBTF_DPRINTF_L2("ibnex",
1848 		    "\tconfig_port_node: Port does not exist");
1849 		return (NULL);
1850 	}
1851 
1852 	/* Wait until "port is up" */
1853 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1854 		ibdm_ibnex_free_port_attr(port_attr);
1855 		delay(drv_usectohz(10000));
1856 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1857 		    hca_guid, port_num)) == NULL) {
1858 			return (NULL);
1859 		}
1860 		if (iter++ == 400) {
1861 			if (displayed == B_FALSE) {
1862 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1863 				    "initialization", port_attr->pa_port_num);
1864 				displayed = B_TRUE;
1865 			}
1866 		}
1867 	}
1868 	IBTF_DPRINTF_L4("ibnex", "\tPort is initialized");
1869 
1870 	mutex_enter(&ibnex.ibnex_mutex);
1871 	port_guid = port_attr->pa_port_guid;
1872 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1873 	    &cdip)) == IBNEX_SUCCESS) {
1874 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1875 		mutex_exit(&ibnex.ibnex_mutex);
1876 		ibdm_ibnex_free_port_attr(port_attr);
1877 		return (cdip);
1878 	}
1879 	for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1880 		if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1881 			cdip = ibnex_commsvc_initnode(parent, port_attr,
1882 			    index, IBNEX_VPPA_COMMSVC_NODE, pkey, &rval,
1883 			    IBNEX_CFGADM_ENUMERATE);
1884 			IBTF_DPRINTF_L5("ibnex",
1885 			    "\t ibnex_commsvc_initnode rval %x", rval);
1886 			break;
1887 		}
1888 	}
1889 	mutex_exit(&ibnex.ibnex_mutex);
1890 
1891 	ibdm_ibnex_free_port_attr(port_attr);
1892 	return (cdip);
1893 }
1894 
1895 
1896 /*
1897  * ibnex_prom_devname_to_pkey_n_portnum()
1898  *	Parses the device node name and extracts "PKEY" and "port#"
1899  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1900  */
1901 static int
1902 ibnex_prom_devname_to_pkey_n_portnum(
1903     char *devname, ib_pkey_t *pkey, uint8_t *port)
1904 {
1905 	int	ret = IBNEX_SUCCESS;
1906 	char	*tmp, *tmp1;
1907 
1908 	if ((tmp = strstr(devname, "port=")) != NULL) {
1909 		if ((tmp = strchr(++tmp, '=')) != NULL)
1910 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
1911 				*port = ibnex_str2int(tmp, (tmp1 - tmp), &ret);
1912 	} else
1913 		ret = IBNEX_FAILURE;
1914 
1915 	if ((ret == IBNEX_SUCCESS) &&
1916 	    (tmp = strstr(devname, "pkey=")) != NULL) {
1917 		if ((tmp = strchr(++tmp, '=')) != NULL)
1918 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
1919 				*pkey = ibnex_str2hex(tmp, (tmp1 - tmp), &ret);
1920 	} else
1921 		ret = IBNEX_FAILURE;
1922 
1923 	return (ret);
1924 }
1925 
1926 
1927 /*
1928  * ibnex_get_pkey_commsvc_index_portnum()
1929  *	Parses the device node name and extracts PKEY, communication
1930  *	service index & Port #.
1931  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1932  */
1933 static int
1934 ibnex_get_pkey_commsvc_index_portnum(char *device_name, int *index,
1935     ib_pkey_t *pkey, uint8_t *port_num)
1936 {
1937 	char 	*srv, **service_name, *temp;
1938 	int  	ii, ncommsvcs, ret;
1939 
1940 	if (ibnex_devname_to_portnum(device_name, port_num) !=
1941 	    IBNEX_SUCCESS) {
1942 		IBTF_DPRINTF_L2("ibnex",
1943 		    "\tget_pkey_commsvc_index_portnum: Invalid PortGuid");
1944 		return (NULL);
1945 	}
1946 	srv = strchr(device_name, ',');
1947 	if (srv == 0)
1948 		return (IBNEX_FAILURE);
1949 
1950 	srv++;
1951 	temp = strchr(srv, ',');
1952 	if (temp == 0)
1953 		return (IBNEX_FAILURE);
1954 	temp++;
1955 	*pkey = ibnex_str2hex(srv, (temp - srv - 1), &ret);
1956 	if (ret != IBNEX_SUCCESS)
1957 		return (ret);
1958 
1959 	if (*pkey == 0 && *port_num != 0) {
1960 		service_name = ibnex.ibnex_comm_svc_names;
1961 		ncommsvcs = ibnex.ibnex_num_comm_svcs;
1962 	} else if (*pkey == 0 && *port_num == 0) {
1963 		service_name = ibnex.ibnex_hcasvc_comm_svc_names;
1964 		ncommsvcs = ibnex.ibnex_nhcasvc_comm_svcs;
1965 	} else {
1966 		service_name = ibnex.ibnex_vppa_comm_svc_names;
1967 		ncommsvcs = ibnex.ibnex_nvppa_comm_svcs;
1968 	}
1969 
1970 	for (ii = 0; ii < ncommsvcs; ii++) {
1971 		if (strcmp(service_name[ii], temp) == 0) {
1972 			break;
1973 		}
1974 	}
1975 	if (ii == ncommsvcs)
1976 		return (IBNEX_FAILURE);
1977 
1978 	*index = ii;
1979 	return (IBNEX_SUCCESS);
1980 }
1981 
1982 
1983 /*
1984  * ibnex_devname_to_portnum()
1985  *	Get portguid from device name
1986  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1987  */
1988 static int
1989 ibnex_devname_to_portnum(char *device_name, uint8_t *portnum)
1990 {
1991 	int	ret;
1992 	char	*temp1, *temp2;
1993 
1994 	temp1 = strchr(device_name, '@');
1995 	if (temp1 == NULL) {
1996 		return (IBNEX_FAILURE);
1997 	}
1998 	temp2 = strchr(temp1, ',');
1999 	if (temp2 == NULL)
2000 		return (IBNEX_FAILURE);
2001 	temp1++;
2002 	*portnum = ibnex_str2hex(temp1, (temp2 - temp1), &ret);
2003 	return (ret);
2004 }
2005 
2006 
2007 /*
2008  * ibnex_config_ioc_node()
2009  *	Configures one particular instance of the IOC driver.
2010  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2011  */
2012 static int
2013 ibnex_config_ioc_node(char *device_name, dev_info_t *pdip)
2014 {
2015 	int			ret;
2016 	time_t			wait_time;
2017 	ib_guid_t		iou_guid, ioc_guid;
2018 	ibdm_ioc_info_t		*ioc_info;
2019 
2020 	IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: Begin");
2021 
2022 	if (ibnex_devname_to_node_n_ioc_guids(
2023 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
2024 		return (IBNEX_FAILURE);
2025 	}
2026 
2027 	wait_time = ibdm_ibnex_get_waittime(0, &ibnex_port_settling_time);
2028 	if (wait_time)
2029 		delay(drv_usectohz(wait_time * 1000000));
2030 
2031 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) ==
2032 	    NULL) {
2033 		ibdm_ibnex_free_ioc_list(ioc_info);
2034 		return (IBNEX_FAILURE);
2035 	}
2036 	mutex_enter(&ibnex.ibnex_mutex);
2037 	if (ibnex_is_ioc_present(ioc_guid) == IBNEX_SUCCESS) {
2038 		IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: IOC present");
2039 		ret = IBNEX_SUCCESS;
2040 	} else
2041 		ret = ibnex_ioc_initnode(ioc_info, IBNEX_DEVFS_ENUMERATE,
2042 		    pdip);
2043 	mutex_exit(&ibnex.ibnex_mutex);
2044 	ibdm_ibnex_free_ioc_list(ioc_info);
2045 	return (ret);
2046 }
2047 
2048 
2049 /*
2050  * ibnex_devname_to_node_n_ioc_guids()
2051  *	Get node guid and ioc guid from the device name
2052  *	Format of the device node name is:
2053  *		ioc@<IOC GUID>,<IOU GUID>
2054  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2055  */
2056 static int
2057 ibnex_devname_to_node_n_ioc_guids(
2058     char *device_name, ib_guid_t *iou_guid, ib_guid_t *ioc_guid,
2059     char **ioc_guid_strp)
2060 {
2061 	char	*temp1, *temp;
2062 	int	len, ret;
2063 	char	*ioc_guid_str;
2064 
2065 	IBTF_DPRINTF_L4("ibnex", "\tdevname_to_node_n_ioc_guids:"
2066 	    "Device Name %s", device_name);
2067 
2068 	if ((temp = strchr(device_name, '@')) == NULL) {
2069 		return (IBNEX_FAILURE);
2070 	}
2071 	if ((temp1 = strchr(++temp, ',')) == NULL) {
2072 		return (IBNEX_FAILURE);
2073 	}
2074 	*ioc_guid = ibnex_str2hex(temp, (temp1 - temp), &ret);
2075 	if (ret == IBNEX_SUCCESS) {
2076 		if (ioc_guid_strp) {
2077 			ioc_guid_str = *ioc_guid_strp = kmem_zalloc((temp1
2078 			    - temp) + 1, KM_SLEEP);
2079 			(void) strncpy(ioc_guid_str, temp, temp1 - temp + 1);
2080 			ioc_guid_str[temp1 - temp] = '\0';
2081 		}
2082 		len = device_name + strlen(device_name) - ++temp1;
2083 		*iou_guid = ibnex_str2hex(temp1, len, &ret);
2084 	}
2085 	return (ret);
2086 }
2087 
2088 
2089 /*ARGSUSED*/
2090 /*
2091  * ibnex_ioc_initnode()
2092  *	Allocate a pathinfo node for the IOC
2093  *	Initialize the device node
2094  *	Bind driver to the node
2095  *	Update IBnex global data
2096  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY
2097  */
2098 int
2099 ibnex_ioc_initnode(ibdm_ioc_info_t *ioc_info, int flag, dev_info_t *pdip)
2100 {
2101 	int			rval;
2102 	ibnex_node_data_t	*node_data;
2103 
2104 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2105 
2106 	node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
2107 	    (void *)ioc_info, 0, 0);
2108 
2109 	/*
2110 	 * prevent any races
2111 	 * we have seen this node_data and it has been initialized
2112 	 * Note that node_dip is already NULL if unconfigure is in
2113 	 * progress.
2114 	 */
2115 	if (node_data && node_data->node_dip) {
2116 		return ((node_data->node_state == IBNEX_CFGADM_CONFIGURING) ?
2117 		    IBNEX_BUSY : IBNEX_SUCCESS);
2118 	} else if (node_data == NULL) {
2119 		node_data = ibnex_init_child_nodedata(IBNEX_IOC_NODE,
2120 		    ioc_info, 0, 0);
2121 	}
2122 
2123 	/*
2124 	 * Return EBUSY if another configure/unconfigure
2125 	 * operation is in progress
2126 	 */
2127 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2128 		return (IBNEX_BUSY);
2129 	}
2130 
2131 	ASSERT(node_data->node_state != IBNEX_CFGADM_CONFIGURED);
2132 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2133 
2134 
2135 	mutex_exit(&ibnex.ibnex_mutex);
2136 
2137 	rval = ibnex_ioc_create_pi(ioc_info, node_data, pdip);
2138 
2139 	mutex_enter(&ibnex.ibnex_mutex);
2140 	if (rval == IBNEX_SUCCESS)
2141 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2142 
2143 	return (rval);
2144 }
2145 
2146 
2147 /*
2148  * ibnex_config_pseudo_all()
2149  *	Configure all the pseudo nodes
2150  */
2151 static void
2152 ibnex_config_pseudo_all(dev_info_t *pdip)
2153 {
2154 	ibnex_node_data_t	*nodep;
2155 
2156 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2157 
2158 	for (nodep = ibnex.ibnex_pseudo_node_head;
2159 	    nodep; nodep = nodep->node_next) {
2160 		(void) ibnex_pseudo_config_one(nodep, NULL, pdip);
2161 	}
2162 }
2163 
2164 
2165 /*
2166  * ibnex_pseudo_config_one()
2167  */
2168 static int
2169 ibnex_pseudo_config_one(ibnex_node_data_t *node_data, char *caddr,
2170     dev_info_t *pdip)
2171 {
2172 	int			rval;
2173 
2174 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one(%p, %p, %p):Begin",
2175 	    node_data, caddr, pdip);
2176 
2177 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2178 
2179 	if (node_data == NULL) {
2180 		IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one: caddr = %s",
2181 		    caddr);
2182 
2183 		/*
2184 		 * This function is now called with PHCI / HCA driver
2185 		 * as parent. The format of devicename is :
2186 		 * 	<driver_name>@<driver_name>,<unit_address>
2187 		 * The "caddr" part of the devicename matches the
2188 		 * format of pseudo_node_addr.
2189 		 *
2190 		 * Use "caddr" to find a matching Pseudo node entry.
2191 		 */
2192 		node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2193 		    (void *)caddr, 0, 0);
2194 	}
2195 
2196 	/*
2197 	 * Do not enumerate nodes with ib-node-type set as "merge"
2198 	 */
2199 	if (node_data && node_data->node_data.pseudo_node.pseudo_merge_node
2200 	    == 1) {
2201 		IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one: merge_node");
2202 		return (IBNEX_FAILURE);
2203 	}
2204 
2205 	/*
2206 	 * prevent any races
2207 	 * we have seen this node_data and it has been initialized
2208 	 * Note that node_dip is already NULL if unconfigure is in
2209 	 * progress.
2210 	 */
2211 	if (node_data && node_data->node_dip) {
2212 		return ((node_data->node_state == IBNEX_CFGADM_CONFIGURING) ?
2213 		    IBNEX_BUSY : IBNEX_SUCCESS);
2214 	} else if (node_data == NULL) {
2215 		IBTF_DPRINTF_L2("ibnex", "\tpseudo_config_one: Invalid node");
2216 		return (IBNEX_FAILURE);
2217 	}
2218 
2219 	/*
2220 	 * Return EBUSY if another configure/unconfigure
2221 	 * operation is in progress
2222 	 */
2223 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2224 		return (IBNEX_BUSY);
2225 	}
2226 
2227 	if (node_data->node_state == IBNEX_CFGADM_CONFIGURED)
2228 		return (IBNEX_SUCCESS);
2229 
2230 	/*
2231 	 * Prevent configuring pseudo nodes specifically unconfigured
2232 	 * by cfgadm. This is done by checking if this is a newly
2233 	 * created node, not yet configured by BUS_CONFIG or cfgadm
2234 	 */
2235 	if (node_data->node_data.pseudo_node.pseudo_new_node != 1)
2236 		return (IBNEX_FAILURE);
2237 	node_data->node_data.pseudo_node.pseudo_new_node = 0;
2238 
2239 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2240 
2241 	mutex_exit(&ibnex.ibnex_mutex);
2242 	rval = ibnex_pseudo_create_pi(node_data, pdip);
2243 	mutex_enter(&ibnex.ibnex_mutex);
2244 
2245 	if (rval == IBNEX_SUCCESS)
2246 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2247 	else {
2248 		node_data->node_dip = NULL;
2249 		node_data->node_state = IBNEX_CFGADM_UNCONFIGURED;
2250 		node_data->node_data.pseudo_node.pseudo_new_node = 1;
2251 	}
2252 
2253 	return (rval);
2254 }
2255 
2256 
2257 
2258 /*
2259  * ibnex_pseudo_mdi_config_one()
2260  *	This is similar to ibnex_pseudo_config_one. Few
2261  *	differences :
2262  *	1. parent device lock not held(no ndi_devi_enter)
2263  *	2. Called for IB Nexus as parent, not IB HCA as
2264  *	   parent.
2265  *	3. Calls mdi_vhci_bus_config()
2266  * This function skips checks for node_state, initializing
2267  * node_state, node_dip, etc. These checks and initializations
2268  * are done when BUS_CONFIG is called with PHCI as the parent.
2269  */
2270 static int
2271 ibnex_pseudo_mdi_config_one(int flag, void *devname, dev_info_t **child,
2272     char *cname, char *caddr)
2273 {
2274 	int			rval, len;
2275 	char			*node_addr;
2276 	ibnex_node_data_t	*node_data;
2277 
2278 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_mdi_config_one:"
2279 	    "cname = %s caddr = %s", cname, caddr);
2280 
2281 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2282 
2283 	len = strlen(cname) + strlen(caddr) + 2;
2284 	node_addr = (char *)kmem_alloc(len, KM_SLEEP);
2285 
2286 	(void) snprintf(node_addr, len, "%s,%s", cname, caddr);
2287 	node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2288 	    (void *)node_addr, 0, 0);
2289 	kmem_free(node_addr, len);
2290 
2291 	if (node_data == NULL) {
2292 		IBTF_DPRINTF_L2("ibnex",
2293 		    "\tpseudo_mdi_config_one: Invalid node");
2294 		return (IBNEX_FAILURE);
2295 	}
2296 
2297 	mutex_exit(&ibnex.ibnex_mutex);
2298 	rval = mdi_vhci_bus_config(ibnex.ibnex_dip, flag, BUS_CONFIG_ONE,
2299 	    devname, child, node_data->node_data.pseudo_node.pseudo_node_addr);
2300 	mutex_enter(&ibnex.ibnex_mutex);
2301 
2302 	return (rval);
2303 }
2304 
2305 /*
2306  * ibnex_pseudo_create_pi()
2307  *	Create a path info node for each pseudo entry
2308  */
2309 int
2310 ibnex_pseudo_create_pi(ibnex_node_data_t *nodep, dev_info_t *parent)
2311 {
2312 	mdi_pathinfo_t		*pip;
2313 	int			rval, hcacnt;
2314 	dev_info_t		*hca_dip, *cdip = NULL;
2315 	ibdm_hca_list_t		*hca_list, *head;
2316 	ibnex_pseudo_node_t	*pseudo;
2317 
2318 	IBTF_DPRINTF_L4("ibnex", "\tibnex_pseudo_create_pi: %p", nodep);
2319 
2320 	pseudo = &nodep->node_data.pseudo_node;
2321 
2322 
2323 	ibdm_ibnex_get_hca_list(&hca_list, &hcacnt);
2324 
2325 	head = hca_list;
2326 
2327 	for (; hca_list != NULL; hca_list = hca_list->hl_next) {
2328 
2329 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
2330 
2331 		/*
2332 		 * For CONFIG_ONE requests through HCA dip, alloc
2333 		 * for HCA dip driving BUS_CONFIG request.
2334 		 */
2335 		if (parent != NULL && hca_dip != parent)
2336 			continue;
2337 
2338 		rval = mdi_pi_alloc(hca_dip,
2339 		    pseudo->pseudo_devi_name, pseudo->pseudo_node_addr,
2340 		    pseudo->pseudo_node_addr, 0, &pip);
2341 
2342 		if (rval != MDI_SUCCESS) {
2343 			(void) ibnex_offline_childdip(cdip);
2344 			return (IBNEX_FAILURE);
2345 		}
2346 		cdip = mdi_pi_get_client(pip);
2347 
2348 		IBTF_DPRINTF_L4("ibnex",
2349 		    "\tpseudo_create_pi: New dip %p", cdip);
2350 
2351 		nodep->node_dip = cdip;
2352 		ddi_set_parent_data(cdip, nodep);
2353 
2354 		rval = mdi_pi_online(pip, 0);
2355 
2356 		if (rval != MDI_SUCCESS) {
2357 			ddi_set_parent_data(cdip, NULL);
2358 			IBTF_DPRINTF_L2("ibnex", "\tpseudo_create_pi:"
2359 			    "mdi_pi_online: failed for pseudo dip %p,"
2360 			    " rval %d", cdip, rval);
2361 			(void) ibnex_offline_childdip(cdip);
2362 			rval = IBNEX_FAILURE;
2363 			break;
2364 		} else
2365 			rval = IBNEX_SUCCESS;
2366 
2367 		if (parent != NULL && hca_dip != parent)
2368 			break;
2369 	}
2370 	if (head)
2371 		ibdm_ibnex_free_hca_list(head);
2372 	return (rval);
2373 }
2374 
2375 
2376 /*
2377  * ibnex_ioc_create_pi()
2378  *	Create a pathinfo node for the ioc node
2379  */
2380 static int
2381 ibnex_ioc_create_pi(ibdm_ioc_info_t *ioc_info, ibnex_node_data_t *node_data,
2382     dev_info_t *pdip)
2383 {
2384 	char			ioc_guid[33], phci_guid[66];
2385 	mdi_pathinfo_t		*pip;
2386 	int			rval = DDI_FAILURE;
2387 	dev_info_t		*hca_dip, *cdip = NULL;
2388 	int			flag = 1;
2389 	ibdm_hca_list_t		*hca_list;
2390 
2391 	IBTF_DPRINTF_L4("ibnex", "\tibnex_ioc_create_pi Begin");
2392 
2393 	(void) snprintf(ioc_guid, 33, "%llX",
2394 	    (longlong_t)ioc_info->ioc_profile.ioc_guid);
2395 	(void) snprintf(phci_guid, 66, "%llX,%llX",
2396 	    (longlong_t)ioc_info->ioc_profile.ioc_guid,
2397 	    (longlong_t)ioc_info->ioc_iou_guid);
2398 
2399 	hca_list = ioc_info->ioc_hca_list;
2400 
2401 	for (; hca_list != NULL; hca_list = hca_list->hl_next) {
2402 
2403 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
2404 
2405 		/*
2406 		 * For CONFIG_ONE requests through HCA dip, alloc
2407 		 * for HCA dip driving BUS_CONFIG request.
2408 		 */
2409 		if (pdip != NULL && hca_dip != pdip)
2410 			continue;
2411 
2412 		IBTF_DPRINTF_L4("ibnex", "\tioc_create_pi "
2413 		    "hca guid %llX", hca_list->hl_hca_guid);
2414 
2415 		rval =  mdi_pi_alloc(hca_dip,
2416 		    IBNEX_IOC_CNAME, ioc_guid, phci_guid, 0, &pip);
2417 		if (rval != MDI_SUCCESS) {
2418 			(void) ibnex_offline_childdip(cdip);
2419 			return (IBNEX_FAILURE);
2420 		}
2421 		cdip = mdi_pi_get_client(pip);
2422 
2423 		IBTF_DPRINTF_L4("ibnex",
2424 		    "\tioc_create_pi: New IOC dip %p", cdip);
2425 
2426 		node_data->node_dip = cdip;
2427 		ddi_set_parent_data(cdip, node_data);
2428 
2429 		if (flag) {
2430 			if ((rval = ibnex_create_ioc_node_prop(
2431 			    ioc_info, cdip)) != IBNEX_SUCCESS) {
2432 				ibnex_delete_ioc_node_data(node_data);
2433 				ddi_prop_remove_all(cdip);
2434 				ddi_set_parent_data(cdip, NULL);
2435 
2436 				(void) ibnex_offline_childdip(cdip);
2437 				return (IBNEX_FAILURE);
2438 			}
2439 			flag = 0;
2440 		}
2441 
2442 		rval = mdi_pi_online(pip, 0);
2443 
2444 		if (rval != MDI_SUCCESS) {
2445 			ibnex_delete_ioc_node_data(node_data);
2446 			ddi_prop_remove_all(cdip);
2447 			ddi_set_parent_data(cdip, NULL);
2448 			IBTF_DPRINTF_L2("ibnex", "\tioc_create_pi: "
2449 			    "mdi_pi_online() failed ioc dip %p, rval %d",
2450 			    cdip, rval);
2451 			(void) ibnex_offline_childdip(cdip);
2452 			rval = IBNEX_FAILURE;
2453 			break;
2454 		} else
2455 			rval = IBNEX_SUCCESS;
2456 
2457 		if (pdip != NULL && hca_dip != pdip)
2458 			break;
2459 	}
2460 	return (rval);
2461 }
2462 
2463 
2464 /*
2465  * ibnex_create_ioc_node_prop()
2466  *	Create IOC device node properties
2467  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2468  */
2469 static int
2470 ibnex_create_ioc_node_prop(ibdm_ioc_info_t *ioc_info, dev_info_t *cdip)
2471 {
2472 	uint16_t		 capabilities;
2473 	ib_dm_ioc_ctrl_profile_t *ioc_profile = &ioc_info->ioc_profile;
2474 
2475 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_node_prop");
2476 
2477 	if (ibnex_create_ioc_compatible_prop(cdip,
2478 	    ioc_profile) != IBNEX_SUCCESS) {
2479 		return (IBNEX_FAILURE);
2480 	}
2481 	if ((ioc_info->ioc_iou_dc_valid) &&
2482 	    (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "iou-diagcode",
2483 	    ioc_info->ioc_iou_diagcode)) != DDI_PROP_SUCCESS) {
2484 		IBTF_DPRINTF_L2("ibnex",
2485 		    "\tcreate_ioc_node_prop: iou-diagcode create failed");
2486 		return (IBNEX_FAILURE);
2487 	}
2488 	if ((ioc_info->ioc_diagdeviceid) && (ioc_info->ioc_dc_valid)) {
2489 		if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "ioc-diagcode",
2490 		    ioc_info->ioc_diagcode) != DDI_PROP_SUCCESS) {
2491 			IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2492 			    "ioc-diagcode create failed");
2493 			return (IBNEX_FAILURE);
2494 		}
2495 	}
2496 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-queue-depth",
2497 	    ioc_profile->ioc_rdma_read_qdepth) != DDI_PROP_SUCCESS) {
2498 		IBTF_DPRINTF_L2("ibnex",
2499 		    "\tcreate_ioc_node_prop: rdma-queue-depth create failed");
2500 		return (IBNEX_FAILURE);
2501 	}
2502 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-transfer-size",
2503 	    ioc_profile->ioc_rdma_xfer_sz) != DDI_PROP_SUCCESS) {
2504 		IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2505 		    "rdma-transfer-size create failed");
2506 		return (IBNEX_FAILURE);
2507 	}
2508 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-message-size",
2509 	    ioc_profile->ioc_send_msg_sz) != DDI_PROP_SUCCESS) {
2510 		IBTF_DPRINTF_L2("ibnex",
2511 		    "\tcreate_ioc_node_prop: send-message-size create failed");
2512 		return (IBNEX_FAILURE);
2513 	}
2514 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-queue-depth",
2515 	    ioc_profile->ioc_send_msg_qdepth) != DDI_PROP_SUCCESS) {
2516 		IBTF_DPRINTF_L2("ibnex",
2517 		    "\tcreate_ioc_node_prop: send-queue-depth create failed");
2518 		return (IBNEX_FAILURE);
2519 	}
2520 
2521 	capabilities = (ioc_profile->ioc_ctrl_opcap_mask << 8);
2522 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip,
2523 	    "capabilities", capabilities) != DDI_PROP_SUCCESS) {
2524 		IBTF_DPRINTF_L2("ibnex",
2525 		    "\tcreate_ioc_node_prop: capabilities create failed");
2526 		return (IBNEX_FAILURE);
2527 	}
2528 	if (ndi_prop_update_string(DDI_DEV_T_NONE, cdip, "id-string",
2529 	    (char *)ioc_profile->ioc_id_string) != DDI_PROP_SUCCESS) {
2530 		IBTF_DPRINTF_L2("ibnex",
2531 		    "\tcreate_ioc_node_prop: id-string failed");
2532 		return (IBNEX_FAILURE);
2533 	}
2534 
2535 	/*
2536 	 * Create properties to represent all the service entries supported
2537 	 * by the IOC. Each service entry consists of 1) Service ID (64 bits)
2538 	 * and 2) Service name (40 bytes). The service entry table is
2539 	 * represented by two properties, service-ids and service-names. The
2540 	 * service-id property is a array of int64's and service names is
2541 	 * array of strings. The first element in the "service-ids" property
2542 	 * corresponds to first string in the "service-names" and so on.
2543 	 */
2544 	if ((ioc_profile->ioc_service_entries != 0) &&
2545 	    (ibnex_create_ioc_srv_props(cdip, ioc_info) != IBNEX_SUCCESS))
2546 		return (IBNEX_FAILURE);
2547 
2548 	/* Create destination port GID properties */
2549 	if (ibnex_create_ioc_portgid_prop(cdip, ioc_info) != IBNEX_SUCCESS)
2550 		return (IBNEX_FAILURE);
2551 
2552 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol-version",
2553 	    ioc_profile->ioc_protocol_ver) != DDI_PROP_SUCCESS) {
2554 		IBTF_DPRINTF_L2("ibnex",
2555 		    "\tcreate_ioc_node_prop: protocol-version create failed");
2556 		return (IBNEX_FAILURE);
2557 	}
2558 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol",
2559 	    ioc_profile->ioc_protocol) != DDI_PROP_SUCCESS) {
2560 		IBTF_DPRINTF_L2("ibnex",
2561 		    "\tcreate_ioc_node_prop: protocol create failed");
2562 		return (IBNEX_FAILURE);
2563 	}
2564 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-subclass",
2565 	    ioc_profile->ioc_io_subclass) != DDI_PROP_SUCCESS) {
2566 		IBTF_DPRINTF_L2("ibnex",
2567 		    "\tcreate_ioc_node_prop: subclass create failed");
2568 		return (IBNEX_FAILURE);
2569 	}
2570 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-class",
2571 	    ioc_profile->ioc_io_class) != DDI_PROP_SUCCESS) {
2572 		IBTF_DPRINTF_L2("ibnex",
2573 		    "\tcreate_ioc_node_prop: class prop create failed");
2574 		return (IBNEX_FAILURE);
2575 	}
2576 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-id",
2577 	    ioc_profile->ioc_subsys_id) != DDI_PROP_SUCCESS) {
2578 		IBTF_DPRINTF_L2("ibnex",
2579 		    "\tcreate_ioc_node_prop: subsys_id create failed");
2580 		return (IBNEX_FAILURE);
2581 	}
2582 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-vendor-id",
2583 	    ioc_profile->ioc_subsys_vendorid) != DDI_PROP_SUCCESS) {
2584 		IBTF_DPRINTF_L2("ibnex",
2585 		    "\tcreate_ioc_node_prop: subsystem vendor create failed");
2586 		return (IBNEX_FAILURE);
2587 	}
2588 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, cdip, "ioc-guid",
2589 	    ioc_profile->ioc_guid) != DDI_PROP_SUCCESS) {
2590 		IBTF_DPRINTF_L2("ibnex",
2591 		    "\tcreate_ioc_node_prop: protocol create failed");
2592 		return (IBNEX_FAILURE);
2593 	}
2594 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-version",
2595 	    ioc_profile->ioc_device_ver) != DDI_PROP_SUCCESS) {
2596 		IBTF_DPRINTF_L2("ibnex",
2597 		    "\tcreate_ioc_node_prop: product-id create failed");
2598 		return (IBNEX_FAILURE);
2599 	}
2600 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-id",
2601 	    ioc_profile->ioc_deviceid) != DDI_PROP_SUCCESS) {
2602 		IBTF_DPRINTF_L2("ibnex",
2603 		    "\tcreate_ioc_node_prop: product-id create failed");
2604 		return (IBNEX_FAILURE);
2605 	}
2606 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "vendor-id",
2607 	    ioc_profile->ioc_vendorid) != DDI_PROP_SUCCESS) {
2608 		IBTF_DPRINTF_L2("ibnex",
2609 		    "\tcreate_ioc_node_prop: vendor-id create failed");
2610 		return (IBNEX_FAILURE);
2611 	}
2612 	return (IBNEX_SUCCESS);
2613 }
2614 
2615 
2616 /*
2617  * ibnex_create_ioc_portgid_prop()
2618  *	Creates "port-entries", "port-list" properties
2619  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2620  */
2621 static int
2622 ibnex_create_ioc_portgid_prop(
2623     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2624 {
2625 	uint64_t	*port_gids;
2626 	int		length, ii, jj;
2627 	int		prop_len;
2628 	ibnex_node_data_t *node_data;
2629 
2630 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_portgid_prop");
2631 
2632 	node_data = ddi_get_parent_data(cdip);
2633 	ASSERT(node_data);
2634 
2635 	prop_len = (ioc_info->ioc_nportgids != 0) ?
2636 	    (2 * ioc_info->ioc_nportgids) : 1;
2637 	length = sizeof (uint64_t) * prop_len;
2638 	port_gids = kmem_zalloc(length, KM_SLEEP);
2639 
2640 	for (ii = 0, jj = 0; ii < ioc_info->ioc_nportgids; ii++) {
2641 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_hi;
2642 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_lo;
2643 	}
2644 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip, "port-list",
2645 	    (int64_t *)port_gids, prop_len) != DDI_PROP_SUCCESS) {
2646 		IBTF_DPRINTF_L2("ibnex",
2647 		    "\tcreate_ioc_portgid_prop: port-list create failed");
2648 		kmem_free(port_gids, length);
2649 		return (IBNEX_FAILURE);
2650 	}
2651 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "port-entries",
2652 	    ioc_info->ioc_nportgids) != DDI_PROP_SUCCESS) {
2653 		IBTF_DPRINTF_L2("ibnex",
2654 		    "\tcreate_ioc_portgid_prop: port-entries create failed");
2655 		kmem_free(port_gids, length);
2656 		return (IBNEX_FAILURE);
2657 	}
2658 
2659 	kmem_free(port_gids, length);
2660 	return (IBNEX_SUCCESS);
2661 }
2662 
2663 
2664 /*
2665  * ibnex_create_ioc_srv_props()
2666  *	Creates "service-name" and "service-id" properties
2667  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2668  */
2669 static int
2670 ibnex_create_ioc_srv_props(
2671     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2672 {
2673 	int			length, ii;
2674 	uint64_t		*srv_id;
2675 	char			*temp, *srv_names[IB_DM_MAX_IOCS_IN_IOU];
2676 	ib_dm_ioc_ctrl_profile_t *profile = &ioc_info->ioc_profile;
2677 	ibdm_srvents_info_t	 *srvents = ioc_info->ioc_serv;
2678 
2679 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props");
2680 
2681 	length = profile->ioc_service_entries * sizeof (ib_dm_srv_t);
2682 	srv_id = kmem_zalloc(length, KM_SLEEP);
2683 	temp = (char *)((char *)srv_id + (8 * profile->ioc_service_entries));
2684 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2685 		srv_names[ii] = (char *)temp + (ii * IB_DM_MAX_SVC_NAME_LEN);
2686 	}
2687 
2688 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2689 		srv_id[ii] = srvents[ii].se_attr.srv_id;
2690 		bcopy(srvents[ii].se_attr.srv_name,
2691 		    srv_names[ii], (IB_DM_MAX_SVC_NAME_LEN - 1));
2692 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2693 		    "Service Names : %s", srv_names[ii]);
2694 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2695 		    "Service ID : %llX", srv_id[ii]);
2696 	}
2697 
2698 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip,
2699 	    "service-id", (int64_t *)srv_id,
2700 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2701 		IBTF_DPRINTF_L2("ibnex",
2702 		    "\tcreate_ioc_srv_props: service-id create failed");
2703 		kmem_free(srv_id, length);
2704 		return (IBNEX_FAILURE);
2705 	}
2706 
2707 	if (ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2708 	    "service-name", (char **)srv_names,
2709 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2710 		IBTF_DPRINTF_L2("ibnex",
2711 		    "\tcreate_ioc_srv_props: service-name create failed");
2712 		kmem_free(srv_id, length);
2713 		return (IBNEX_FAILURE);
2714 	}
2715 	kmem_free(srv_id, length);
2716 	return (IBNEX_SUCCESS);
2717 }
2718 
2719 
2720 /*
2721  * ibnex_create_ioc_compatible_prop()
2722  *	Creates "compatible" property values
2723  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2724  */
2725 static int
2726 ibnex_create_ioc_compatible_prop(
2727     dev_info_t *cdip, ib_dm_ioc_ctrl_profile_t *ioc_profile)
2728 {
2729 	char		*temp;
2730 	int		rval, ii;
2731 	char		*compatible[IBNEX_MAX_COMPAT_NAMES];
2732 
2733 	/*
2734 	 * Initialize the "compatible" property string as below:
2735 	 * Compatible Strings :
2736 	 *	1. ib.V<vid>P<pid>S<subsys vid>s<subsys id>v<ver>
2737 	 *	2. ib.V<vid>P<pid>S<subsys vid>s<subsys id>
2738 	 *	3. ib.V<vid>P<pid>v<ver>
2739 	 *	4. ib.V<vid>P<pid>
2740 	 *	5. ib.C<Class>c<Subclass>p<protocol>r<protocol ver>
2741 	 *	6. ib.C<Class>c<Subclass>p<protocol>
2742 	 *
2743 	 * Note:
2744 	 *	All leading zeros must be present
2745 	 *	All numeric values must specified in hex without prefix "0x"
2746 	 */
2747 
2748 	temp = kmem_alloc(IBNEX_MAX_COMPAT_PROP_SZ, KM_SLEEP);
2749 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2750 		compatible[ii] = temp + (ii * IBNEX_MAX_COMPAT_LEN);
2751 
2752 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
2753 	    "ib.V%06xP%08xS%06xs%08xv%04x",
2754 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2755 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id,
2756 	    ioc_profile->ioc_device_ver);
2757 
2758 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
2759 	    "ib.V%06xP%08xS%06xs%08x",
2760 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2761 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id);
2762 
2763 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
2764 	    "ib.V%06xP%08xv%04x",
2765 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2766 	    ioc_profile->ioc_device_ver);
2767 
2768 	(void) snprintf(compatible[3], IBNEX_MAX_COMPAT_LEN,
2769 	    "ib.V%06xP%08x",
2770 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid);
2771 
2772 	(void) snprintf(compatible[4], IBNEX_MAX_COMPAT_LEN,
2773 	    "ib.C%04xc%04xp%04xr%04x",
2774 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2775 	    ioc_profile->ioc_protocol, ioc_profile->ioc_protocol_ver);
2776 
2777 	(void) snprintf(compatible[5], IBNEX_MAX_COMPAT_LEN,
2778 	    "ib.C%04xc%04xp%04x",
2779 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2780 	    ioc_profile->ioc_protocol);
2781 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2782 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[ii]);
2783 
2784 	/* Create the compatible property for child cdip */
2785 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2786 	    "compatible", (char **)compatible, IBNEX_MAX_COMPAT_NAMES);
2787 
2788 	if (rval != DDI_PROP_SUCCESS) {
2789 		IBTF_DPRINTF_L2("ibnex", "\tcompatible prop_create failed");
2790 		kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2791 		return (IBNEX_FAILURE);
2792 	}
2793 
2794 	kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2795 	return (IBNEX_SUCCESS);
2796 }
2797 
2798 
2799 static void
2800 ibnex_ioc_node_cleanup()
2801 {
2802 	ibnex_node_data_t *node, *delete;
2803 
2804 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2805 	for (node = ibnex.ibnex_ioc_node_head; node; ) {
2806 		delete = node;
2807 		node = node->node_next;
2808 		mutex_exit(&ibnex.ibnex_mutex);
2809 		ibnex_delete_ioc_node_data(delete);
2810 		mutex_enter(&ibnex.ibnex_mutex);
2811 	}
2812 }
2813 
2814 /*
2815  * ibnex_delete_ioc_node_data()
2816  *	Delete IOC node from the list
2817  */
2818 static void
2819 ibnex_delete_ioc_node_data(ibnex_node_data_t *node)
2820 {
2821 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data:");
2822 
2823 	mutex_enter(&ibnex.ibnex_mutex);
2824 	if ((node->node_next == NULL) && (node->node_prev == NULL)) {
2825 		ASSERT(ibnex.ibnex_ioc_node_head == node);
2826 		ibnex.ibnex_ioc_node_head = NULL;
2827 	} else if (node->node_next == NULL)
2828 		node->node_prev->node_next = NULL;
2829 	else if (node->node_prev == NULL) {
2830 		node->node_next->node_prev = NULL;
2831 		ibnex.ibnex_ioc_node_head = node->node_next;
2832 	} else {
2833 		node->node_prev->node_next = node->node_next;
2834 		node->node_next->node_prev = node->node_prev;
2835 	}
2836 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data: head %p",
2837 	    ibnex.ibnex_ioc_node_head);
2838 	mutex_exit(&ibnex.ibnex_mutex);
2839 	kmem_free(node, sizeof (ibnex_node_data_t));
2840 }
2841 
2842 
2843 /*
2844  * ibnex_dm_callback()
2845  *
2846  *	This routine is registered with the IBDM during IB nexus attach. It
2847  *	is called by the IBDM module when it discovers
2848  *		New HCA port
2849  *		HCA port removal
2850  *		New HCA added
2851  *		HCA removed
2852  */
2853 void
2854 ibnex_dm_callback(void *arg, ibdm_events_t flag)
2855 {
2856 	char	hca_guid[IBNEX_HCAGUID_STRSZ];
2857 	ibdm_ioc_info_t	*ioc_list, *ioc;
2858 	ibnex_node_data_t	*node_data;
2859 
2860 	IBTF_DPRINTF_L4("ibnex", "\tdm_callback: attr %p event %x", arg, flag);
2861 
2862 	switch (flag) {
2863 	case IBDM_EVENT_HCA_ADDED:
2864 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2865 		    (*(longlong_t *)arg));
2866 		/* Create a devctl minor node for the HCA's port  */
2867 		if (ddi_create_minor_node(ibnex.ibnex_dip, hca_guid, S_IFCHR,
2868 		    ddi_get_instance(ibnex.ibnex_dip),
2869 		    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
2870 			IBTF_DPRINTF_L4("ibnex", "\tdm_callback: failed to "
2871 			    "create minor node for port w/ guid %s", hca_guid);
2872 		}
2873 
2874 		break;
2875 
2876 	case IBDM_EVENT_HCA_REMOVED:
2877 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2878 		    (*(longlong_t *)arg));
2879 		ddi_remove_minor_node(ibnex.ibnex_dip, hca_guid);
2880 		break;
2881 
2882 	case IBDM_EVENT_IOC_PROP_UPDATE:
2883 		ioc = ioc_list = (ibdm_ioc_info_t *)arg;
2884 		if (ioc_list == NULL)
2885 			break;
2886 
2887 		mutex_enter(&ibnex.ibnex_mutex);
2888 		while (ioc_list) {
2889 			if ((node_data = ibnex_is_node_data_present(
2890 			    IBNEX_IOC_NODE, ioc_list, 0, 0)) != NULL &&
2891 			    node_data->node_dip != NULL) {
2892 				ibnex_update_prop(node_data, ioc_list);
2893 			}
2894 			ioc_list = ioc_list->ioc_next;
2895 		}
2896 		mutex_exit(&ibnex.ibnex_mutex);
2897 		ibdm_ibnex_free_ioc_list(ioc);
2898 	}
2899 }
2900 
2901 
2902 /*
2903  * ibnex_get_dip_from_guid()
2904  *
2905  *	Searches the linked list of the port nodes and returns the dip for
2906  *	the of the Port / Node guid requested.
2907  *	Returns NULL if not found
2908  */
2909 int
2910 ibnex_get_dip_from_guid(ib_guid_t guid, int index, ib_pkey_t pkey,
2911     dev_info_t **dip)
2912 {
2913 	int			node_index;
2914 	ib_guid_t		node_guid;
2915 	ib_pkey_t		node_pkey;
2916 	ibnex_node_data_t	*node_data;
2917 
2918 	IBTF_DPRINTF_L4("ibnex",
2919 	    "\tget_dip_from_guid: guid = %llX", guid);
2920 
2921 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2922 	/* Search for a matching entry in internal lists */
2923 	node_data = ibnex.ibnex_port_node_head;
2924 	while (node_data) {
2925 		node_guid = node_data->node_data.port_node.port_guid;
2926 		node_index = node_data->node_data.port_node.port_commsvc_idx;
2927 		node_pkey = node_data->node_data.port_node.port_pkey;
2928 		if ((node_guid == guid) && (index == node_index) &&
2929 		    (node_pkey == pkey)) {
2930 			break;
2931 		}
2932 		node_data = node_data->node_next;
2933 	}
2934 
2935 	/* matching found with a valid dip */
2936 	if (node_data && node_data->node_dip) {
2937 		*dip = node_data->node_dip;
2938 		return (IBNEX_SUCCESS);
2939 	} else if (node_data && !node_data->node_dip) {	/* dip is invalid */
2940 		*dip = NULL;
2941 		return (IBNEX_SUCCESS);
2942 	}
2943 
2944 	/* no match found */
2945 	*dip = NULL;
2946 	return (IBNEX_FAILURE);
2947 }
2948 
2949 
2950 /*
2951  * ibnex_comm_svc_init()
2952  *	Read the property and cache the values in the global
2953  *	structure.
2954  *	Check for max allowed length (4 bytes) of service name
2955  *	(each element of the property)
2956  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2957  */
2958 static ibnex_rval_t
2959 ibnex_comm_svc_init(char *property, ibnex_node_type_t type)
2960 {
2961 	int		i, len, count;
2962 	int		ncomm_svcs;
2963 	char		**comm_svcp;
2964 	char		**servicep = NULL;
2965 	uint_t		nservices = 0;
2966 	int			*valid = NULL;
2967 
2968 	IBTF_DPRINTF_L4("ibnex", "\tcomm_svc_init : %s property, type = %x",
2969 	    property, type);
2970 
2971 	/* lookup the string array property */
2972 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, ibnex.ibnex_dip,
2973 	    DDI_PROP_DONTPASS, property, &servicep, &nservices) !=
2974 	    DDI_PROP_SUCCESS) {
2975 		IBTF_DPRINTF_L2("ibnex", "\t%s property undefined", property);
2976 		return (IBNEX_SUCCESS);
2977 	}
2978 
2979 	if (nservices)
2980 		valid = kmem_zalloc(nservices * sizeof (int), KM_SLEEP);
2981 
2982 
2983 	/* first read the file to get a count of valid service entries */
2984 	for (ncomm_svcs = 0, count = 0; count < nservices; count++) {
2985 		int j;
2986 
2987 		len = strlen(servicep[count]);
2988 		if (len == 0 || len > 4) {
2989 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
2990 			    "Service name %s invalid : length %d",
2991 			    servicep[count], len);
2992 			continue;
2993 		}
2994 		if (ibnex_unique_svcname(servicep[count]) != IBNEX_SUCCESS) {
2995 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
2996 			    "Service name %s invalid : Not unique",
2997 			    servicep[count]);
2998 			continue;
2999 		}
3000 
3001 		/*
3002 		 * ibnex_unique_svcname checks for uniqueness in service names
3003 		 * communication services fully initialized. Check uniqueness
3004 		 * in service names currently initialized.
3005 		 */
3006 		for (j = 0; j < count; j++)
3007 			if (valid[j] && strncmp(servicep[count],
3008 			    servicep[j], 4) == 0) {
3009 				IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3010 				    "Service name %s invalid : Not unique",
3011 				    servicep[count]);
3012 					continue;
3013 			}
3014 
3015 		valid[count] = 1;
3016 		ncomm_svcs++;
3017 	}
3018 
3019 	/* if no valid entries found, bailout */
3020 	if (nservices == 0 || ncomm_svcs == 0) {
3021 		IBTF_DPRINTF_L4("ibnex", "\tNo %s entries found", property);
3022 		ddi_prop_free(servicep); /* free the property */
3023 		if (valid)
3024 			kmem_free(valid, nservices * sizeof (int));
3025 		return (IBNEX_SUCCESS);
3026 	}
3027 
3028 	comm_svcp = kmem_zalloc((ncomm_svcs * sizeof (char *)), KM_SLEEP);
3029 	if (type == IBNEX_PORT_COMMSVC_NODE) {
3030 		ibnex.ibnex_comm_svc_names = comm_svcp;
3031 		ibnex.ibnex_num_comm_svcs = ncomm_svcs;
3032 	} else if (type == IBNEX_VPPA_COMMSVC_NODE) {
3033 		ibnex.ibnex_vppa_comm_svc_names = comm_svcp;
3034 		ibnex.ibnex_nvppa_comm_svcs = ncomm_svcs;
3035 	} else if (type == IBNEX_HCASVC_COMMSVC_NODE) {
3036 		ibnex.ibnex_hcasvc_comm_svc_names = comm_svcp;
3037 		ibnex.ibnex_nhcasvc_comm_svcs = ncomm_svcs;
3038 	}
3039 
3040 	/* copy the services into an array of strings */
3041 	for (i = 0, count = 0; count < nservices; count++) {
3042 		if (valid[count] == 0)	/* Skip invalid ones */
3043 			continue;
3044 		comm_svcp[i] = kmem_alloc(len + 1, KM_SLEEP);
3045 		(void) strcpy(comm_svcp[i], servicep[count]);
3046 		IBTF_DPRINTF_L4("ibnex",
3047 		    "\t\tService [%d]: %s", i, comm_svcp[i]);
3048 		++i;
3049 	}
3050 	ddi_prop_free(servicep);
3051 	kmem_free(valid, nservices * sizeof (int));
3052 	return (IBNEX_SUCCESS);
3053 }
3054 
3055 
3056 /*
3057  * ibnex_comm_svc_fini()
3058  *	Deallocate all the memory allocated for the communication
3059  *	service arrays.
3060  */
3061 static void
3062 ibnex_comm_svc_fini()
3063 {
3064 	int	index;
3065 
3066 	for (index = 0; index < ibnex.ibnex_num_comm_svcs; index++) {
3067 		kmem_free(ibnex.ibnex_comm_svc_names[index],
3068 		    (strlen(ibnex.ibnex_comm_svc_names[index]) + 1));
3069 	}
3070 	if (ibnex.ibnex_comm_svc_names) {
3071 		kmem_free(ibnex.ibnex_comm_svc_names,
3072 		    ibnex.ibnex_num_comm_svcs * sizeof (char *));
3073 	}
3074 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
3075 		kmem_free(ibnex.ibnex_vppa_comm_svc_names[index],
3076 		    strlen(ibnex.ibnex_vppa_comm_svc_names[index]) +1);
3077 	}
3078 	if (ibnex.ibnex_vppa_comm_svc_names) {
3079 		kmem_free(ibnex.ibnex_vppa_comm_svc_names,
3080 		    ibnex.ibnex_nvppa_comm_svcs * sizeof (char *));
3081 	}
3082 	for (index = 0; index < ibnex.ibnex_nhcasvc_comm_svcs; index++) {
3083 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names[index],
3084 		    strlen(ibnex.ibnex_hcasvc_comm_svc_names[index]) +1);
3085 	}
3086 	if (ibnex.ibnex_hcasvc_comm_svc_names) {
3087 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names,
3088 		    ibnex.ibnex_nhcasvc_comm_svcs * sizeof (char *));
3089 	}
3090 	ibnex.ibnex_comm_svc_names = NULL;
3091 	ibnex.ibnex_num_comm_svcs = 0;
3092 	ibnex.ibnex_vppa_comm_svc_names = NULL;
3093 	ibnex.ibnex_nvppa_comm_svcs = 0;
3094 	ibnex.ibnex_hcasvc_comm_svc_names = NULL;
3095 	ibnex.ibnex_nhcasvc_comm_svcs = 0;
3096 }
3097 
3098 
3099 /*
3100  * ibnex_commsvc_initnode()
3101  *	This routine is specific to port/VPPA node creation
3102  *	Creates a device node for the comm service specified by commsvc_index
3103  *	Creates all the device node properties
3104  *	Allocates and initializes the node specific data
3105  *	Binds the device driver of the device node
3106  *	Returns "dev_info_t" of the child node or NULL in case of failure
3107  *	Sets IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY in "rval" to reflect
3108  *	if the operation was successful, failed or was not performed.
3109  */
3110 dev_info_t *
3111 ibnex_commsvc_initnode(dev_info_t *parent, ibdm_port_attr_t *port_attr,
3112     int index, int node_type, ib_pkey_t pkey, int *rval, int flag)
3113 {
3114 	int			ret;
3115 	char			*svcname;
3116 	dev_info_t		*cdip;
3117 	ibnex_node_data_t	*node_data;
3118 
3119 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3120 
3121 	*rval = IBNEX_SUCCESS;
3122 
3123 	/*
3124 	 * prevent any races
3125 	 * we have seen this node_data and it has been initialized
3126 	 * Note that node_dip is already NULL if unconfigure is in
3127 	 * progress.
3128 	 */
3129 	node_data = ibnex_is_node_data_present(node_type, (void *)port_attr,
3130 	    index, pkey);
3131 	if (node_data && node_data->node_dip) {
3132 		/*
3133 		 * Return NULL if another configure
3134 		 * operation is in progress
3135 		 */
3136 		if (node_data->node_state == IBNEX_CFGADM_CONFIGURING) {
3137 			*rval = IBNEX_BUSY;
3138 			return (NULL);
3139 		} else {
3140 			return (node_data->node_dip);
3141 		}
3142 	} else if (node_data == NULL) {
3143 		/* allocate a new ibnex_node_data_t */
3144 		node_data = ibnex_init_child_nodedata(node_type, port_attr,
3145 		    index, pkey);
3146 	}
3147 
3148 	/*
3149 	 * Return NULL if another unconfigure operation is in progress
3150 	 */
3151 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
3152 		*rval = IBNEX_BUSY;
3153 		return (NULL);
3154 	}
3155 
3156 	ASSERT(node_data->node_state != IBNEX_CFGADM_CONFIGURED);
3157 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3158 
3159 	ndi_devi_alloc_sleep(parent,
3160 	    IBNEX_IBPORT_CNAME, (pnode_t)DEVI_SID_NODEID, &cdip);
3161 
3162 	node_data->node_dip	= cdip;
3163 	ddi_set_parent_data(cdip, node_data);
3164 	mutex_exit(&ibnex.ibnex_mutex);
3165 
3166 	switch (node_type) {
3167 		case IBNEX_VPPA_COMMSVC_NODE :
3168 			svcname = ibnex.ibnex_vppa_comm_svc_names[index];
3169 			break;
3170 		case IBNEX_HCASVC_COMMSVC_NODE :
3171 			svcname = ibnex.ibnex_hcasvc_comm_svc_names[index];
3172 			break;
3173 		case IBNEX_PORT_COMMSVC_NODE :
3174 			svcname = ibnex.ibnex_comm_svc_names[index];
3175 			break;
3176 		default :
3177 			IBTF_DPRINTF_L2("ibnex", "\tcommsvc_initnode:"
3178 			    "\tInvalid Node type");
3179 			*rval = IBNEX_FAILURE;
3180 			ibnex_delete_port_node_data(node_data);
3181 			ddi_prop_remove_all(cdip);
3182 			ddi_set_parent_data(cdip, NULL);
3183 			(void) ndi_devi_free(cdip);
3184 			mutex_enter(&ibnex.ibnex_mutex);
3185 			return (NULL);
3186 	}
3187 
3188 	if (ibnex_create_port_node_prop(port_attr, cdip, svcname, pkey) ==
3189 	    IBNEX_SUCCESS) {
3190 		if (flag == IBNEX_DEVFS_ENUMERATE)
3191 			ret = ndi_devi_bind_driver(cdip, 0);
3192 		else
3193 			ret = ndi_devi_online(cdip, 0);
3194 		if (ret == NDI_SUCCESS) {
3195 			mutex_enter(&ibnex.ibnex_mutex);
3196 			node_data->node_state	= IBNEX_CFGADM_CONFIGURED;
3197 			return (cdip);
3198 		}
3199 	}
3200 	*rval = IBNEX_FAILURE;
3201 	ibnex_delete_port_node_data(node_data);
3202 	ddi_prop_remove_all(cdip);
3203 	ddi_set_parent_data(cdip, NULL);
3204 	(void) ndi_devi_free(cdip);
3205 	mutex_enter(&ibnex.ibnex_mutex);
3206 	IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: failure exit");
3207 	return (NULL);
3208 }
3209 
3210 
3211 /*
3212  * ibnex_create_port_node_prop()
3213  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3214  */
3215 static int
3216 ibnex_create_port_node_prop(ibdm_port_attr_t *port_attr,
3217     dev_info_t *child_dip, char *srvname, ib_pkey_t pkey)
3218 {
3219 	if (ibnex_create_port_compatible_prop(child_dip,
3220 	    srvname, port_attr) != DDI_PROP_SUCCESS) {
3221 		IBTF_DPRINTF_L2("ibnex",
3222 		    "\tcreate_port_node_prop: compatible update failed");
3223 		return (IBNEX_FAILURE);
3224 	}
3225 	if ((pkey != 0) && (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3226 	    "port-pkey", pkey) != DDI_PROP_SUCCESS)) {
3227 		IBTF_DPRINTF_L2("ibnex",
3228 		    "\tcreate_port_node_prop: port-num update failed");
3229 		return (IBNEX_FAILURE);
3230 	}
3231 
3232 	/*
3233 	 * For HCA_SVC device nodes, port_num will be 0.
3234 	 * Do not create the "port-number" & "port-guid" properties.
3235 	 */
3236 	if (port_attr->pa_port_num != 0) {
3237 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3238 		    "port-number", port_attr->pa_port_num) !=
3239 		    DDI_PROP_SUCCESS) {
3240 			IBTF_DPRINTF_L2("ibnex",
3241 			    "\tcreate_port_node_prop: port-num update failed");
3242 			return (IBNEX_FAILURE);
3243 		}
3244 		if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3245 		    "port-guid", port_attr->pa_port_guid) !=
3246 		    DDI_PROP_SUCCESS) {
3247 			IBTF_DPRINTF_L2("ibnex",
3248 			    "\tcreate_port_node_prop: port-guid update failed");
3249 			return (IBNEX_FAILURE);
3250 		}
3251 	} else {
3252 		ibdm_hca_list_t	*hca_list;
3253 
3254 		/*
3255 		 * HCA_SVC nodes require "num-ports" & "port-guids"
3256 		 * properties.
3257 		 *
3258 		 * To create the num-ports & port-guids attribute :
3259 		 * 1. Get HCA list (ibdm_ibnex_get_hca_info_by_guid)
3260 		 * 2. Form the array of port GUIDs.
3261 		 */
3262 		if ((hca_list = ibdm_ibnex_get_hca_info_by_guid(
3263 		    port_attr->pa_hca_guid)) == NULL) {
3264 			IBTF_DPRINTF_L2("ibnex",
3265 			    "\tcreate_port_node_prop: hca_info_by_guid failed");
3266 			return (IBNEX_FAILURE);
3267 		}
3268 
3269 		if (hca_list->hl_nports != 0) {
3270 			ib_guid_t	*port_guids;
3271 			uint8_t		portnum;
3272 
3273 			ASSERT(hca_list->hl_port_attr != NULL);
3274 
3275 			port_guids = kmem_zalloc(
3276 			    hca_list->hl_nports * sizeof (ib_guid_t),
3277 			    KM_SLEEP);
3278 
3279 			for (portnum = 0; portnum < hca_list->hl_nports;
3280 			    portnum++) {
3281 				port_guids[portnum] = (hca_list->
3282 				    hl_port_attr[portnum]).pa_port_guid;
3283 			}
3284 
3285 			if (ndi_prop_update_int64_array(DDI_DEV_T_NONE,
3286 			    child_dip, "port-guids", (int64_t *)port_guids,
3287 			    hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3288 				IBTF_DPRINTF_L2("ibnex",
3289 				    "\tcreate_port_node_prop: port-guids "
3290 				    "create failed");
3291 				kmem_free(port_guids, hca_list->hl_nports *
3292 				    sizeof (ib_guid_t));
3293 				ibdm_ibnex_free_hca_list(hca_list);
3294 				return (IBNEX_FAILURE);
3295 			}
3296 			kmem_free(port_guids, hca_list->hl_nports *
3297 			    sizeof (ib_guid_t));
3298 		}
3299 
3300 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3301 		    "num-ports", hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3302 			IBTF_DPRINTF_L2("ibnex",
3303 			    "\tcreate_port_node_prop: num-ports update failed");
3304 			ibdm_ibnex_free_hca_list(hca_list);
3305 			return (IBNEX_FAILURE);
3306 		}
3307 		ibdm_ibnex_free_hca_list(hca_list);
3308 	}
3309 
3310 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3311 	    "hca-guid", port_attr->pa_hca_guid) != DDI_PROP_SUCCESS) {
3312 		IBTF_DPRINTF_L2("ibnex",
3313 		    "\tcreate_port_node_prop: hca-guid update failed");
3314 		return (IBNEX_FAILURE);
3315 	}
3316 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3317 	    "product-id", port_attr->pa_productid) != DDI_PROP_SUCCESS) {
3318 		IBTF_DPRINTF_L2("ibnex",
3319 		    "\tcreate_port_node_prop: product-id update failed");
3320 		return (IBNEX_FAILURE);
3321 	}
3322 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3323 	    "vendor-id", port_attr->pa_vendorid) != DDI_PROP_SUCCESS) {
3324 		IBTF_DPRINTF_L2("ibnex",
3325 		    "\tcreate_port_node_prop: vendor-id update failed");
3326 		return (IBNEX_FAILURE);
3327 	}
3328 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip, "device-version",
3329 	    port_attr->pa_dev_version) != DDI_PROP_SUCCESS) {
3330 		IBTF_DPRINTF_L2("ibnex",
3331 		    "\tcreate_port_node_prop: device-version update failed");
3332 		return (IBNEX_FAILURE);
3333 	}
3334 	return (IBNEX_SUCCESS);
3335 }
3336 
3337 
3338 /*
3339  * ibnex_str2int()
3340  *	Utility function that converts a string of length  "len" to
3341  *	integer.
3342  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3343  */
3344 static int
3345 ibnex_str2int(char *c, int len, int *ret)
3346 {
3347 	int intval = 0, ii;
3348 
3349 	IBTF_DPRINTF_L4("ibnex", "\tstr2int: Int string %s..", c);
3350 	*ret = IBNEX_SUCCESS;
3351 	for (ii = 0; ii < len; ii ++) {
3352 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3353 			intval = intval * 10 +c[ii] - '0';
3354 		else {
3355 			IBTF_DPRINTF_L2("ibnex",
3356 			    "\tstr2int: Invalid integer string %s..", c);
3357 			*ret = IBNEX_FAILURE;
3358 			break;
3359 		}
3360 	}
3361 
3362 	return (intval);
3363 }
3364 
3365 
3366 /*
3367  * ibnex_str2hex()
3368  *	Utility functions that converts a string of length  "len" to
3369  *	hex value. Note. This function does not handle strings which
3370  *	string length more than 8 bytes.
3371  *
3372  */
3373 uint64_t
3374 ibnex_str2hex(char *c, int len, int *ret)
3375 {
3376 	uint64_t hex = 0, ii;
3377 
3378 	*ret = IBNEX_SUCCESS;
3379 	for (ii = 0; ii < len; ii ++) {
3380 		hex = (ii == 0) ? hex : (hex << 4);
3381 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3382 			hex |= c[ii] - '0';
3383 		else if ((c[ii] >= 'a') && (c[ii] <= 'f'))
3384 			hex |= c[ii] - 'a' + 10;
3385 		else if ((c[ii] >= 'A') && (c[ii] <= 'F'))
3386 			hex |= c[ii] - 'A' + 10;
3387 		else {
3388 			IBTF_DPRINTF_L2("ibnex",
3389 			    "\tstr2hex: Invalid integer string");
3390 			*ret = IBNEX_FAILURE;
3391 			break;
3392 		}
3393 	}
3394 
3395 	return (hex);
3396 }
3397 
3398 
3399 /*
3400  * ibnex_create_port_compatible_prop()
3401  *	Creates 'Compatibility' property for port / HCA_SVC device nodes
3402  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3403  */
3404 static int
3405 ibnex_create_port_compatible_prop(dev_info_t *child_dip,
3406     char *comm_svcp, ibdm_port_attr_t *port_attr)
3407 {
3408 	int 	rval, i;
3409 	char	*temp;
3410 	char	*compatible[IBNEX_MAX_IBPORT_COMPAT_NAMES];
3411 
3412 	IBTF_DPRINTF_L4("ibnex", "\tcreate_port_compatible_prop: Begin");
3413 	/*
3414 	 * Initialize the "compatible" property string as below:
3415 	 * Compatible Strings :
3416 	 * 1. ib.V<vid>P<pid>v<revision>.<service name>.
3417 	 * 2. ib.V<vid>P<pid>.<service name>.
3418 	 * 3. ib.<service name>
3419 	 * Leading zeros must be present
3420 	 */
3421 	temp = kmem_alloc(IBNEX_MAX_IBPORT_COMPAT_PROP_SZ, KM_SLEEP);
3422 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++) {
3423 		compatible[i] = temp + (i * IBNEX_MAX_COMPAT_LEN);
3424 	}
3425 
3426 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
3427 	    "ib.V%06xP%08xv%04x.%s",
3428 	    port_attr->pa_vendorid, port_attr->pa_productid,
3429 	    port_attr->pa_dev_version, comm_svcp);
3430 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
3431 	    "ib.V%06xP%08x.%s",
3432 	    port_attr->pa_vendorid, port_attr->pa_productid,
3433 	    comm_svcp);
3434 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
3435 	    "ib.%s", comm_svcp);
3436 
3437 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++)
3438 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[i]);
3439 
3440 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, child_dip,
3441 	    "compatible", (char **)compatible, IBNEX_MAX_IBPORT_COMPAT_NAMES);
3442 
3443 	if (rval != DDI_PROP_SUCCESS) {
3444 		kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3445 		return (IBNEX_FAILURE);
3446 	}
3447 	kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3448 	return (IBNEX_SUCCESS);
3449 }
3450 
3451 
3452 /*
3453  * ibnex_delete_port_node_data()
3454  *	Delete the parent private node data from the linked list
3455  *	Deallocate the memory of the port/ioc attributes
3456  *	Deallocate the memory of the node data
3457  */
3458 static void
3459 ibnex_delete_port_node_data(ibnex_node_data_t *node)
3460 {
3461 	mutex_enter(&ibnex.ibnex_mutex);
3462 	if ((node->node_next == NULL) && (node->node_prev == NULL))
3463 		ibnex.ibnex_port_node_head = NULL;
3464 	else if (node->node_next == NULL)
3465 		node->node_prev->node_next = NULL;
3466 	else if (node->node_prev == NULL) {
3467 		node->node_next->node_prev = NULL;
3468 		ibnex.ibnex_port_node_head = node->node_next;
3469 	} else {
3470 		node->node_prev->node_next = node->node_next;
3471 		node->node_next->node_prev = node->node_prev;
3472 	}
3473 	mutex_exit(&ibnex.ibnex_mutex);
3474 	kmem_free(node, sizeof (ibnex_node_data_t));
3475 }
3476 
3477 
3478 /*
3479  * ibnex_is_node_data_present()
3480  *	Checks whether ibnex_node_t is created already
3481  *	Returns ibnex_node_data_t if found, otherwise NULL
3482  */
3483 static ibnex_node_data_t *
3484 ibnex_is_node_data_present(ibnex_node_type_t node_type, void *attr,
3485     int index, ib_pkey_t pkey)
3486 {
3487 	ibnex_node_data_t	*nodep;
3488 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3489 	if (node_type == IBNEX_IOC_NODE) {
3490 		ibdm_ioc_info_t *ioc_infop = (ibdm_ioc_info_t *)attr;
3491 
3492 		for (nodep = ibnex.ibnex_ioc_node_head; nodep != NULL;
3493 		    nodep = nodep->node_next) {
3494 			if (nodep->node_data.ioc_node.ioc_guid ==
3495 			    ioc_infop->ioc_profile.ioc_guid) {
3496 				return (nodep);
3497 			}
3498 		}
3499 
3500 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3501 		for (nodep = ibnex.ibnex_pseudo_node_head; nodep;
3502 		    nodep = nodep->node_next)
3503 			if (strcmp(nodep->node_data.pseudo_node.
3504 			    pseudo_node_addr, (char *)attr) == 0)
3505 				return (nodep);
3506 
3507 	} else {
3508 		ibdm_port_attr_t *pattrp = (ibdm_port_attr_t *)attr;
3509 
3510 		for (nodep = ibnex.ibnex_port_node_head; nodep != NULL;
3511 		    nodep = nodep->node_next) {
3512 			if ((nodep->node_data.port_node.port_guid ==
3513 			    pattrp->pa_port_guid) &&
3514 			    (nodep->node_data.port_node.port_commsvc_idx ==
3515 			    index) &&
3516 			    (nodep->node_data.port_node.port_pkey == pkey)) {
3517 				return (nodep);
3518 			}
3519 		}
3520 	}
3521 	return (NULL);
3522 }
3523 
3524 /*
3525  * ibnex_lookup_unit_address_prop:
3526  *
3527  *	If property with name is found, return its value
3528  *	otherwise return NULL.
3529  */
3530 static char *
3531 ibnex_lookup_named_prop(ddi_prop_t *head, char *name)
3532 {
3533 	ddi_prop_t	*propp;
3534 
3535 	/* Search the list of properties for name */
3536 	for (propp = head; propp != NULL; propp = propp->prop_next)  {
3537 		if (strcmp(propp->prop_name, name) != 0)
3538 			continue;
3539 		/* named property should be valid and have a value */
3540 		if (propp->prop_len <= 1)
3541 			break;
3542 		return ((char *)propp->prop_val);
3543 	}
3544 
3545 	return ((char *)0);
3546 }
3547 
3548 
3549 /*
3550  * ibnex_pseudo_initnodes()
3551  *	This routine is specific to pseudo node information handling
3552  *	Creates a ibnex_node_data_t all pseudo nodes children of ibnex
3553  */
3554 void
3555 ibnex_pseudo_initnodes()
3556 {
3557 	int			pnam_len, len;
3558 	ibnex_node_data_t	*nodep;
3559 	struct hwc_spec		*list, *spec;
3560 	char			*node_addr, *temp, *unit_addr;
3561 	char			*node_type;
3562 
3563 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_initnodes");
3564 
3565 	mutex_enter(&ibnex.ibnex_mutex);
3566 	/*
3567 	 * get a list of all "pseudo" children of "ib".
3568 	 * for these children initialize/allocate an internal
3569 	 * ibnex_node_data_t.
3570 	 */
3571 	list = hwc_get_child_spec(ibnex.ibnex_dip, (major_t)-1);
3572 	for (spec = list; spec != NULL; spec = spec->hwc_next) {
3573 		if (spec->hwc_devi_sys_prop_ptr == NULL)
3574 			continue;
3575 
3576 		/* Check "ib-node-type" property for IOC .conf */
3577 		node_type = ibnex_lookup_named_prop(
3578 		    spec->hwc_devi_sys_prop_ptr, "ib-node-type");
3579 
3580 		/* "unit-address" property should be present */
3581 		temp = ibnex_lookup_named_prop(
3582 		    spec->hwc_devi_sys_prop_ptr, "unit-address");
3583 		if (temp == NULL)
3584 			continue;
3585 
3586 		pnam_len = strlen(spec->hwc_devi_name) + strlen(temp) + 2;
3587 
3588 		node_addr = kmem_zalloc(pnam_len, KM_SLEEP);
3589 
3590 		(void) snprintf(node_addr,
3591 		    pnam_len, "%s,%s", spec->hwc_devi_name, temp);
3592 
3593 		nodep = ibnex_is_node_data_present(
3594 		    IBNEX_PSEUDO_NODE, (void *)node_addr, 0, 0);
3595 
3596 		if (nodep) {
3597 			kmem_free(node_addr, pnam_len);
3598 			continue;
3599 		}
3600 
3601 		nodep = ibnex_init_child_nodedata(IBNEX_PSEUDO_NODE,
3602 		    (void *)spec->hwc_devi_name, 0, 0);
3603 
3604 		nodep->node_data.pseudo_node.pseudo_node_addr = node_addr;
3605 		(void) snprintf(nodep->node_data.
3606 		    pseudo_node.pseudo_node_addr, pnam_len, "%s", node_addr);
3607 
3608 		len = strlen(temp) + 1;
3609 		unit_addr = (char *)kmem_alloc(len, KM_SLEEP);
3610 		nodep->node_data.pseudo_node.pseudo_unit_addr = unit_addr;
3611 		(void) snprintf(unit_addr, len, "%s", temp);
3612 		nodep->node_data.pseudo_node.pseudo_unit_addr_len = len;
3613 
3614 		if (node_type && strcmp(node_type, "merge") == 0)
3615 			nodep->node_data.pseudo_node.pseudo_merge_node = 1;
3616 
3617 		/* Mark this as a new psuedo node */
3618 		nodep->node_data.pseudo_node.pseudo_new_node = 1;
3619 
3620 		IBTF_DPRINTF_L3("ibnex", "\tpseudo_initnodes: unit addr = %s"
3621 		    " : drv name = %s", unit_addr, spec->hwc_devi_name);
3622 	}
3623 	hwc_free_spec_list(list);
3624 	mutex_exit(&ibnex.ibnex_mutex);
3625 }
3626 
3627 
3628 /*
3629  * ibnex_init_child_nodedata()
3630  *
3631  *	Allocate memory for the parent private data for device node
3632  *	Initializes the parent private child device node data.
3633  *	Returns pointer to the parent private data
3634  */
3635 static ibnex_node_data_t *
3636 ibnex_init_child_nodedata(ibnex_node_type_t node_type, void *attr, int index,
3637     ib_pkey_t pkey)
3638 {
3639 	char			 *devi_name;
3640 	ibdm_ioc_info_t		 *ioc_info;
3641 	ibnex_ioc_node_t	 *ioc_node;
3642 	ibnex_node_data_t	 *node_data;
3643 	ib_dm_ioc_ctrl_profile_t *ioc_profile;
3644 
3645 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3646 
3647 	node_data = kmem_zalloc(sizeof (ibnex_node_data_t), KM_SLEEP);
3648 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3649 	node_data->node_type	= node_type;
3650 
3651 	if (node_type == IBNEX_IOC_NODE) {
3652 		ioc_info	= (ibdm_ioc_info_t *)attr;
3653 		ioc_profile	= &ioc_info->ioc_profile;
3654 		ioc_node	= &node_data->node_data.ioc_node;
3655 
3656 		ioc_node->iou_guid = ioc_info->ioc_iou_guid;
3657 		ioc_node->ioc_guid = ioc_profile->ioc_guid;
3658 		(void) strncpy(ioc_node->ioc_id_string,
3659 		    (char *)ioc_profile->ioc_id_string,
3660 		    IB_DM_IOC_ID_STRING_LEN);
3661 		ioc_node->ioc_ngids = ioc_info->ioc_nportgids;
3662 
3663 		node_data->node_next = ibnex.ibnex_ioc_node_head;
3664 		node_data->node_prev = NULL;
3665 		if (ibnex.ibnex_ioc_node_head)
3666 			ibnex.ibnex_ioc_node_head->node_prev = node_data;
3667 		ibnex.ibnex_ioc_node_head = node_data;
3668 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3669 		devi_name = (char *)attr;
3670 		node_data->node_data.pseudo_node.pseudo_devi_name =
3671 		    kmem_zalloc(strlen(devi_name) + 1, KM_SLEEP);
3672 		(void) strncpy(node_data->node_data.pseudo_node.
3673 		    pseudo_devi_name, devi_name, strlen(devi_name));
3674 		node_data->node_next = ibnex.ibnex_pseudo_node_head;
3675 		node_data->node_prev = NULL;
3676 		if (ibnex.ibnex_pseudo_node_head)
3677 			ibnex.ibnex_pseudo_node_head->node_prev = node_data;
3678 		ibnex.ibnex_pseudo_node_head = node_data;
3679 	} else {
3680 		node_data->node_data.port_node.port_hcaguid =
3681 		    ((ibdm_port_attr_t *)attr)->pa_hca_guid;
3682 		node_data->node_data.port_node.port_guid =
3683 		    ((ibdm_port_attr_t *)attr)->pa_port_guid;
3684 		node_data->node_data.port_node.port_num =
3685 		    ((ibdm_port_attr_t *)attr)->pa_port_num;
3686 		node_data->node_data.port_node.port_commsvc_idx = index;
3687 		node_data->node_data.port_node.port_pkey = pkey;
3688 
3689 		node_data->node_next = ibnex.ibnex_port_node_head;
3690 		node_data->node_prev = NULL;
3691 		if (ibnex.ibnex_port_node_head)
3692 			ibnex.ibnex_port_node_head->node_prev = node_data;
3693 		ibnex.ibnex_port_node_head = node_data;
3694 	}
3695 	return (node_data);
3696 }
3697 
3698 static int
3699 ibnex_get_eventcookie(dev_info_t *dip, dev_info_t *rdip,
3700     char *eventname, ddi_eventcookie_t *cookie)
3701 {
3702 	int rc;
3703 
3704 
3705 	IBTF_DPRINTF_L4("ibnex", "ibnex_get_eventcookie(%p, %p, %s, 0x%X)",
3706 	    dip, rdip, eventname, cookie);
3707 
3708 	rc = ndi_event_retrieve_cookie(ibnex.ibnex_ndi_event_hdl,
3709 	    rdip, eventname, cookie, NDI_EVENT_NOPASS);
3710 	if (rc == NDI_SUCCESS) {
3711 		mutex_enter(&ibnex.ibnex_mutex);
3712 		ibnex.ibnex_prop_update_evt_cookie = *cookie;
3713 		mutex_exit(&ibnex.ibnex_mutex);
3714 	}
3715 
3716 	return (rc);
3717 }
3718 
3719 static int
3720 ibnex_add_eventcall(dev_info_t *dip, dev_info_t *rdip,
3721     ddi_eventcookie_t cookie, void (*callback)(dev_info_t *dip,
3722     ddi_eventcookie_t cookie, void *arg, void *bus_impldata),
3723     void *arg, ddi_callback_id_t *cb_id)
3724 {
3725 	IBTF_DPRINTF_L4("ibnex",
3726 	    "ibnex_add_eventcall(%p, %p, 0x%X, %p, %p, %p)",
3727 	    dip, rdip, cookie, callback, arg, cb_id);
3728 
3729 	return (ndi_event_add_callback(ibnex.ibnex_ndi_event_hdl,
3730 	    rdip, cookie, callback, arg, NDI_SLEEP, cb_id));
3731 }
3732 
3733 static int
3734 ibnex_remove_eventcall(dev_info_t *dip, ddi_callback_id_t cb_id)
3735 {
3736 	IBTF_DPRINTF_L4("ibnex", "ibnex_remove_eventcall(%p, 0x%X)",
3737 	    dip, cb_id);
3738 
3739 	return (ndi_event_remove_callback(ibnex.ibnex_ndi_event_hdl,
3740 	    cb_id));
3741 }
3742 
3743 static int
3744 ibnex_post_event(dev_info_t *dip, dev_info_t *rdip,
3745     ddi_eventcookie_t cookie, void *bus_impldata)
3746 {
3747 	IBTF_DPRINTF_L4("ibnex", "ibnex_post_event(%p, %p, 0x%X, %p)",
3748 	    dip, rdip, cookie, bus_impldata);
3749 
3750 	return (ndi_event_run_callbacks(ibnex.ibnex_ndi_event_hdl, rdip,
3751 	    cookie, bus_impldata));
3752 }
3753 
3754 /*
3755  * ibnex_reprobe_ioc_dev()
3756  *
3757  * This could be called as a result of ibt_reprobe_dev request or
3758  * cfgadm command. The function is called from a taskq in case of
3759  * ibt_reprobe_dev and from user context for cfgadm command.
3760  *
3761  * This function reprobes the properties for one IOC dip.
3762  *
3763  * node_reprobe_state should be set before calling this function.
3764  */
3765 void
3766 ibnex_reprobe_ioc_dev(void *arg)
3767 {
3768 	dev_info_t	*dip = (dev_info_t *)arg;
3769 	ibnex_node_data_t	*node_data;
3770 	ibnex_ioc_node_t	*ioc_data;
3771 	ibdm_ioc_info_t		*ioc_info;
3772 
3773 	/* ASSERT(NO_LOCKS_HELD); */
3774 	ASSERT(dip != NULL);
3775 
3776 	node_data = ddi_get_parent_data(dip);
3777 	ASSERT(node_data);
3778 
3779 	if (node_data->node_dip == NULL) {
3780 		IBTF_DPRINTF_L4("ibnex", "reprobe for unconfigured dip");
3781 		mutex_enter(&ibnex.ibnex_mutex);
3782 		ibnex_wakeup_reprobe_ioc(node_data, 0);
3783 		mutex_exit(&ibnex.ibnex_mutex);
3784 		return;
3785 	}
3786 	ioc_data = &(node_data->node_data.ioc_node);
3787 
3788 	/* Reprobe the IOC */
3789 	ioc_info = ibdm_ibnex_probe_ioc(ioc_data->iou_guid, ioc_data->ioc_guid,
3790 	    1);
3791 	if (ioc_info == NULL) {
3792 		IBTF_DPRINTF_L2("ibnex", "Null ioc_info from reprobe");
3793 		mutex_enter(&ibnex.ibnex_mutex);
3794 		ibnex_wakeup_reprobe_ioc(node_data, 1);
3795 		mutex_exit(&ibnex.ibnex_mutex);
3796 		return;
3797 	}
3798 
3799 	mutex_enter(&ibnex.ibnex_mutex);
3800 	if (node_data->node_dip)
3801 		ibnex_update_prop(node_data, ioc_info);
3802 	ibnex_wakeup_reprobe_ioc(node_data, 0);
3803 	mutex_exit(&ibnex.ibnex_mutex);
3804 
3805 	ibdm_ibnex_free_ioc_list(ioc_info);
3806 }
3807 
3808 /*
3809  * ibnex_reprobe_all()
3810  *
3811  * This could be called as a result of cfgadm command. The function
3812  * is called from user context.
3813  *
3814  * This function reprobes the properties for all IOC dips.
3815  *
3816  * ibnex_reprobe_state should be set before calling this function.
3817  */
3818 void
3819 ibnex_reprobe_ioc_all()
3820 {
3821 	ibnex_node_data_t	*node_data;
3822 	ibdm_ioc_info_t		*ioc_info_list, *ioc;
3823 
3824 	/* ASSERT(NO_LOCKS_HELD); */
3825 
3826 	/* Sweep the fabric */
3827 	ioc = ioc_info_list = ibdm_ibnex_get_ioc_list(
3828 	    IBDM_IBNEX_REPROBE_ALL);
3829 	if (ioc_info_list == NULL) {
3830 		mutex_enter(&ibnex.ibnex_mutex);
3831 		ibnex_wakeup_reprobe_all();
3832 		mutex_exit(&ibnex.ibnex_mutex);
3833 		return;
3834 	}
3835 
3836 	mutex_enter(&ibnex.ibnex_mutex);
3837 	while (ioc_info_list) {
3838 		if ((node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
3839 		    ioc_info_list, 0, 0)) != NULL &&
3840 		    node_data->node_dip != NULL) {
3841 			ibnex_update_prop(node_data, ioc_info_list);
3842 		}
3843 		ioc_info_list = ioc_info_list->ioc_next;
3844 	}
3845 	ibnex_wakeup_reprobe_all();
3846 	mutex_exit(&ibnex.ibnex_mutex);
3847 
3848 	ibdm_ibnex_free_ioc_list(ioc);
3849 }
3850 
3851 /*
3852  * Update the properties, if it has modified and notify IBTF client.
3853  */
3854 static void
3855 ibnex_update_prop(ibnex_node_data_t *node_data, ibdm_ioc_info_t *ioc_info)
3856 {
3857 	ibt_prop_update_payload_t	evt_data;
3858 	dev_info_t	*dip = node_data->node_dip;
3859 	ddi_eventcookie_t	evt_cookie;
3860 	ibnex_ioc_node_t *ioc;
3861 
3862 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3863 
3864 	ASSERT(dip != NULL);
3865 
3866 	ioc = &node_data->node_data.ioc_node;
3867 
3868 	evt_data = ioc_info->ioc_info_updated;
3869 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
3870 
3871 	/*
3872 	 * For a disconnected IOC :
3873 	 *	Store the ioc_profile for supplying cfgadm info
3874 	 *	ibdm maintains no info of disconnected IOC
3875 	 *
3876 	 * For reconnected IOC :
3877 	 *	ibdm has info of previous service entries
3878 	 *	ioc_profile maintained by ibnexus is used to
3879 	 *	update ib_srv_prop_updated.
3880 	 *	Free the ibnex maintained ioc_profile
3881 	 */
3882 	if (ioc_info->ioc_nportgids == 0) {
3883 		IBTF_DPRINTF_L4("ibnex",
3884 		    "\tupdate_prop:  IOC disconnected");
3885 		ioc->ioc_profile = (ib_dm_ioc_ctrl_profile_t *)kmem_zalloc(
3886 		    sizeof (ib_dm_ioc_ctrl_profile_t), KM_SLEEP);
3887 		bcopy(&ioc_info->ioc_profile, ioc->ioc_profile,
3888 		    sizeof (ib_dm_ioc_ctrl_profile_t));
3889 
3890 		ibnex.ibnex_num_disconnect_iocs++;
3891 	} else if (ioc_info->ioc_nportgids != 0 && ioc->ioc_ngids == 0 &&
3892 	    ioc->ioc_profile != NULL) {
3893 		IBTF_DPRINTF_L4("ibnex",
3894 		    "\tupdate_prop: IOC reconnected");
3895 		if (ioc->ioc_profile->ioc_service_entries !=
3896 		    ioc_info->ioc_profile.ioc_service_entries)
3897 			evt_data.ib_srv_prop_updated = 1;
3898 
3899 		ibnex.ibnex_num_disconnect_iocs--;
3900 		kmem_free(ioc->ioc_profile, sizeof (ib_dm_ioc_ctrl_profile_t));
3901 		ioc->ioc_profile = NULL;
3902 	}
3903 
3904 	/* Update the properties that have changed */
3905 	mutex_exit(&ibnex.ibnex_mutex);
3906 	if (evt_data.ib_gid_prop_updated) {
3907 		if (ibnex_create_ioc_portgid_prop(dip, ioc_info) !=
3908 		    IBNEX_SUCCESS) {
3909 			mutex_enter(&ibnex.ibnex_mutex);
3910 			return;
3911 		}
3912 	}
3913 	if (evt_data.ib_srv_prop_updated) {
3914 		if (ioc_info->ioc_profile.ioc_service_entries != 0 &&
3915 		    (ibnex_create_ioc_srv_props(dip, ioc_info) !=
3916 		    IBNEX_SUCCESS)) {
3917 			mutex_enter(&ibnex.ibnex_mutex);
3918 			return;
3919 		} else if (ioc_info->ioc_profile.ioc_service_entries == 0) {
3920 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
3921 			    "service-id");
3922 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
3923 			    "service-name");
3924 		}
3925 	}
3926 	mutex_enter(&ibnex.ibnex_mutex);
3927 	ioc->ioc_ngids = ioc_info->ioc_nportgids;
3928 
3929 	/*
3930 	 * Post an event if :
3931 	 *	1. Properites have changed or NOTIFY_ALWAYS is set.
3932 	 *	2. child dip is configured and a valid cookie for
3933 	 *	   IB_PROP_UPDATE_EVENT.
3934 	 */
3935 	if ((evt_data.ib_prop_updated != 0 ||
3936 	    (node_data->node_reprobe_state &
3937 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)) &&
3938 	    ((node_data->node_state == IBNEX_CFGADM_CONFIGURED) &&
3939 	    (evt_cookie != NULL))) {
3940 			mutex_exit(&ibnex.ibnex_mutex);
3941 
3942 			if (ndi_post_event(ibnex.ibnex_dip, dip,
3943 			    evt_cookie, &evt_data) != NDI_SUCCESS)
3944 				IBTF_DPRINTF_L2("ibnex",
3945 				    "\tndi_post_event failed\n");
3946 
3947 			mutex_enter(&ibnex.ibnex_mutex);
3948 	}
3949 
3950 	/*
3951 	 * Cleanup node_reprobe_state, for ibt_reprobe_dev
3952 	 * requests, when reprobe all / node reprobe is in
3953 	 * progress. ibnex_reprobe_ioc_dev is not called
3954 	 * in this case.
3955 	 */
3956 	if (node_data->node_reprobe_state ==
3957 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)
3958 		ibnex_wakeup_reprobe_ioc(node_data, 0);
3959 }
3960 
3961 static ibnex_rval_t
3962 ibnex_unique_svcname(char *svcname)
3963 {
3964 	int i;
3965 
3966 	/* Check Port Services */
3967 	for (i = 0; i < ibnex.ibnex_num_comm_svcs; i++)
3968 		if (ibnex.ibnex_comm_svc_names[i] && strncmp(svcname,
3969 		    ibnex.ibnex_comm_svc_names[i], 4) == 0)
3970 			return (IBNEX_FAILURE);
3971 
3972 	/* Check VPPA Services */
3973 	for (i = 0; i < ibnex.ibnex_nvppa_comm_svcs; i++)
3974 		if (ibnex.ibnex_vppa_comm_svc_names[i] && strncmp(svcname,
3975 		    ibnex.ibnex_vppa_comm_svc_names[i], 4) == 0)
3976 			return (IBNEX_FAILURE);
3977 
3978 	/* Check HCA_SVC Services */
3979 	for (i = 0; i < ibnex.ibnex_nhcasvc_comm_svcs; i++)
3980 		if (ibnex.ibnex_hcasvc_comm_svc_names[i] && strncmp(svcname,
3981 		    ibnex.ibnex_hcasvc_comm_svc_names[i], 4) == 0)
3982 			return (IBNEX_FAILURE);
3983 
3984 	return (IBNEX_SUCCESS);
3985 }
3986 
3987 static void
3988 ibnex_handle_reprobe_dev(void *arg)
3989 {
3990 	dev_info_t	*dip = (dev_info_t *)arg;
3991 	ibnex_node_data_t	*node_data;
3992 
3993 	ASSERT(dip != NULL);
3994 	node_data = ddi_get_parent_data(dip);
3995 	ASSERT(node_data);
3996 
3997 	/*
3998 	 * Return success if:
3999 	 *	1. Reprobe for all nodes are in progress
4000 	 *	2. Reprobe for this node is in progress.
4001 	 * The reprobe in progress will complete eventually and
4002 	 * update the properties, if required.
4003 	 */
4004 	mutex_enter(&ibnex.ibnex_mutex);
4005 	if (ibnex.ibnex_reprobe_state != 0 ||
4006 	    node_data->node_reprobe_state != 0) {
4007 		/*
4008 		 * Setting NOTIFY_ALWAYS to ensure that
4009 		 * DDI event is delivered always for
4010 		 * ibt_reprobe_dev
4011 		 */
4012 		node_data->node_reprobe_state |=
4013 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
4014 		mutex_exit(&ibnex.ibnex_mutex);
4015 		return;
4016 	}
4017 	node_data->node_reprobe_state =
4018 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
4019 	mutex_exit(&ibnex.ibnex_mutex);
4020 	ibnex_reprobe_ioc_dev(arg);
4021 }
4022 
4023 
4024 /*
4025  * MPxIO pathmangement routines. Currently IB nexus does not support
4026  * any kind of pathmangement. So, just return success to make MPxIO
4027  * framework happy.
4028  */
4029 /*ARGSUSED*/
4030 static int
4031 ib_vhci_pi_init(dev_info_t *dip, mdi_pathinfo_t *pip, int flag)
4032 {
4033 	IBTF_DPRINTF_L4("ibnex", "\tpi_init: dip %p pip %p", dip, pip);
4034 	return (MDI_SUCCESS);
4035 }
4036 
4037 
4038 /*ARGSUSED*/
4039 static int
4040 ib_vhci_pi_uninit(dev_info_t *dip, mdi_pathinfo_t *pip, int flag)
4041 {
4042 	IBTF_DPRINTF_L4("ibnex", "\tpi_uninit: dip %p pip %p", dip, pip);
4043 	return (MDI_SUCCESS);
4044 }
4045 
4046 
4047 /*ARGSUSED*/
4048 static int
4049 ib_vhci_pi_state_change(dev_info_t *dip, mdi_pathinfo_t *pip,
4050 		mdi_pathinfo_state_t state, uint32_t arg1, int arg2)
4051 {
4052 	IBTF_DPRINTF_L4("ibnex",
4053 	    "\tpi_state_change: dip %p pip %p state %x", dip, pip, state);
4054 	return (MDI_SUCCESS);
4055 }
4056 
4057 
4058 /*ARGSUSED*/
4059 static int
4060 ib_vhci_failover(dev_info_t *dip1, dev_info_t *dip2, int arg)
4061 {
4062 	return (MDI_SUCCESS);
4063 }
4064 
4065 
4066 static int
4067 ibnex_bus_power(dev_info_t *parent, void *impl_arg,
4068     pm_bus_power_op_t op, void *arg, void *result)
4069 {
4070 
4071 	int ret = DDI_SUCCESS;
4072 
4073 	IBTF_DPRINTF_L4("ibnex", "\tbus_power: begin: op = %d", op);
4074 
4075 	/*
4076 	 * Generic processing in MPxIO framework
4077 	 */
4078 	ret = mdi_bus_power(parent, impl_arg, op, arg, result);
4079 
4080 	switch (ret) {
4081 	case MDI_SUCCESS:
4082 		ret = DDI_SUCCESS;
4083 		break;
4084 	case MDI_FAILURE:
4085 		ret = DDI_FAILURE;
4086 		break;
4087 	default:
4088 		break;
4089 	}
4090 
4091 	return (ret);
4092 }
4093 
4094 
4095 /*
4096  * If enumerated as a child of IB Nexus / VHCI, call mdi_vhci_bus_config.
4097  * ndi_devi_enter is not held during this call. mdi_vhci_bus_config()
4098  * will have called ndi_busop_bus_config(), no need for the caller to call
4099  * ndi_busop_bus_config() again.
4100  *
4101  * If enumerated as a child of HCA device, this could be a case for
4102  * Sparc boot or device enumeration from PHCI, driven by MDI.
4103  * Hold parent lock (ndi_devi_enter). The caller will have to call
4104  * ndi_busop_bus_config() if this function returns SUCCESS.
4105  *
4106  * if the device name contains ":port", then it is the Sparc boot case.
4107  * Handle this as before.
4108  *
4109  * If the device name does *not* contain the ":port", then :
4110  *	1. ibdm to probe IOC
4111  *	2. Create a pathinfo only if the IOC is reachable from the parent dip.
4112  */
4113 static int
4114 ibnex_ioc_bus_config_one(dev_info_t **pdipp, uint_t flag,
4115     ddi_bus_config_op_t op, void *devname, dev_info_t **child,
4116     int *need_bus_config)
4117 {
4118 	int ret = DDI_FAILURE, circ;
4119 	dev_info_t *pdip = *pdipp;
4120 	ib_guid_t	iou_guid, ioc_guid;
4121 	char *ioc_guid_str;
4122 
4123 
4124 	*need_bus_config = 1;
4125 
4126 	if (pdip == ibnex.ibnex_dip) {
4127 		if (ibnex_devname_to_node_n_ioc_guids(
4128 		    (char *)devname, &iou_guid, &ioc_guid,
4129 		    &ioc_guid_str) != IBNEX_SUCCESS) {
4130 			return (ret);
4131 		}
4132 		ret = mdi_vhci_bus_config(pdip, flag, op, devname, child,
4133 		    ioc_guid_str);
4134 		kmem_free(ioc_guid_str, strlen(ioc_guid_str) + 1);
4135 		if (ret == MDI_SUCCESS)
4136 			*need_bus_config = 0;
4137 	} else {
4138 		/*
4139 		 * Check if ibtc_attach() is called and the phci is
4140 		 * set up for this device.
4141 		 *
4142 		 * If an HCA is in maintenance mode, its phci is not set up
4143 		 * but the driver is attached to update the firmware. In the
4144 		 * case, do not configure the ioc node because the IB does not
4145 		 * work properly.
4146 		 */
4147 		if (mdi_component_is_phci(pdip, NULL) == MDI_FAILURE) {
4148 			return (IBNEX_FAILURE);
4149 		}
4150 		mdi_devi_enter(pdip, &circ);
4151 		if (strstr((char *)devname, ":port=") != NULL) {
4152 			ret = ibnex_config_root_iocnode(pdip, devname);
4153 			ASSERT(ibnex.ibnex_dip == NULL);
4154 			*pdipp = ibnex.ibnex_dip;
4155 		} else {
4156 			ret = ibnex_config_ioc_node(devname, pdip);
4157 		}
4158 		mdi_devi_exit(pdip, circ);
4159 	}
4160 	return (ret);
4161 }
4162 
4163 static int
4164 ibnex_is_merge_node(dev_info_t *child)
4165 {
4166 	char	*node;
4167 	int	ret = IBNEX_INVALID_NODE;
4168 
4169 	if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child,
4170 	    DDI_PROP_DONTPASS, "ib-node-type", &node) !=
4171 	    DDI_PROP_SUCCESS) {
4172 		return (IBNEX_FAILURE);
4173 	}
4174 
4175 	if (node != NULL && *node != 0) {
4176 		if (strcmp(node, "merge") == 0)
4177 			ret = IBNEX_SUCCESS;
4178 		else {
4179 			IBTF_DPRINTF_L4("ibnex",
4180 			    "\tis_merge_node: ib-node-type = %s", node);
4181 		}
4182 	}
4183 
4184 	ddi_prop_free(node);
4185 	return (ret);
4186 }
4187 
4188 /*
4189  * Checks if the dn_head for the driver has already
4190  * initialized by the prom tree.
4191  */
4192 void
4193 ibnex_hw_in_dev_tree(char *driver_name)
4194 {
4195 	major_t	major;
4196 
4197 	IBTF_DPRINTF_L4("ibnex", "\thw_in_dev_tree(%s)", driver_name);
4198 
4199 	if (devnamesp == NULL)
4200 		return;
4201 
4202 	major = ddi_name_to_major(driver_name);
4203 	if (major == -1)
4204 		return;
4205 
4206 	if (devnamesp[major].dn_head != (dev_info_t *)NULL)
4207 		ibnex_hw_status = IBNEX_HW_IN_DEVTREE;
4208 }
4209