xref: /titanic_50/usr/src/uts/common/io/ib/ibnex/ibnex.c (revision 8e7248e505faa19396d4e853604e3fa7cd2cb3b5)
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 #include <sys/conf.h>
44 #include <sys/stat.h>
45 #include <sys/modctl.h>
46 #include <sys/taskq.h>
47 #include <sys/mdi_impldefs.h>
48 #include <sys/sunmdi.h>
49 #include <sys/sunpm.h>
50 #include <sys/ib/mgt/ibdm/ibdm_impl.h>
51 #include <sys/ib/ibnex/ibnex.h>
52 #include <sys/ib/ibnex/ibnex_devctl.h>
53 #include <sys/ib/ibtl/ibti.h>
54 #include <sys/ib/ibtl/impl/ibtl_ibnex.h>
55 #include <sys/file.h>
56 #include <sys/hwconf.h>
57 
58 /* Function prototypes */
59 static int		ibnex_attach(dev_info_t *, ddi_attach_cmd_t);
60 static int		ibnex_getinfo(dev_info_t *, ddi_info_cmd_t,
61 			    void *, void **);
62 static int		ibnex_detach(dev_info_t *, ddi_detach_cmd_t);
63 static int		ibnex_busctl(dev_info_t *,
64 			    dev_info_t *, ddi_ctl_enum_t, void *, void *);
65 static int		ibnex_map_fault(dev_info_t *,
66 			    dev_info_t *, struct hat *, struct seg *,
67 			    caddr_t, struct devpage *, pfn_t, uint_t, uint_t);
68 static int		ibnex_init_child(dev_info_t *);
69 static ibnex_rval_t	ibnex_comm_svc_init(char *, ibnex_node_type_t);
70 static void		ibnex_comm_svc_fini();
71 dev_info_t		*ibnex_commsvc_initnode(dev_info_t *,
72 			    ibdm_port_attr_t *, int, int, ib_pkey_t, int *,
73 			    int);
74 static void		ibnex_delete_port_node_data(ibnex_node_data_t *);
75 int			ibnex_get_dip_from_guid(ib_guid_t, int,
76 			    ib_pkey_t, dev_info_t **);
77 static ibnex_node_data_t *ibnex_is_node_data_present(ibnex_node_type_t,
78 			    void *, int, ib_pkey_t);
79 static ibnex_node_data_t *ibnex_init_child_nodedata(ibnex_node_type_t, void *,
80 			    int, ib_pkey_t);
81 static int		ibnex_create_port_node_prop(ibdm_port_attr_t *,
82 			    dev_info_t *, char *, ib_pkey_t);
83 void			ibnex_dm_callback(void *, ibdm_events_t);
84 static int		ibnex_create_port_compatible_prop(dev_info_t *,
85 			    char *, ibdm_port_attr_t *);
86 static int		ibnex_create_ioc_srv_props(
87 			    dev_info_t *, ibdm_ioc_info_t *);
88 static int		ibnex_get_eventcookie(dev_info_t *,
89 			    dev_info_t *, char *, ddi_eventcookie_t *);
90 static int		ibnex_add_eventcall(dev_info_t *, dev_info_t *,
91 			    ddi_eventcookie_t, void (*)(dev_info_t *,
92 			    ddi_eventcookie_t, void *, void *),
93 			    void *arg, ddi_callback_id_t *cb_id);
94 static int		ibnex_remove_eventcall(dev_info_t *,
95 			    ddi_callback_id_t);
96 static int		ibnex_post_event(dev_info_t *, dev_info_t *,
97 			    ddi_eventcookie_t, void *);
98 static int		ibnex_bus_config(dev_info_t *, uint_t,
99 			    ddi_bus_config_op_t, void *, dev_info_t **);
100 static int		ibnex_bus_unconfig(dev_info_t *,
101 			    uint_t, ddi_bus_config_op_t, void *);
102 static dev_info_t	*ibnex_config_port_node(dev_info_t *, char *);
103 static dev_info_t	*ibnex_config_obp_args(dev_info_t *, char *);
104 static int		ibnex_get_pkey_commsvc_index_portnum(
105 			    char *, int *, ib_pkey_t *, uint8_t *);
106 static void		ibnex_config_all_children(dev_info_t *);
107 static int		ibnex_devname_to_portnum(char *, uint8_t *);
108 static void		ibnex_create_vppa_nodes(
109 			    dev_info_t *, ibdm_port_attr_t *);
110 static void		ibnex_create_port_nodes(
111 			    dev_info_t *, ibdm_port_attr_t *);
112 static void		ibnex_create_hcasvc_nodes(
113 			    dev_info_t *, ibdm_port_attr_t *);
114 static int		ibnex_config_root_iocnode(dev_info_t *, char *);
115 static int		ibnex_devname2port(char *, int *);
116 static int		ibnex_config_ioc_node(char *, dev_info_t *);
117 static int		ibnex_devname_to_node_n_ioc_guids(
118 			    char *, ib_guid_t *, ib_guid_t *, char **);
119 static void		ibnex_ioc_node_cleanup();
120 static void		ibnex_delete_ioc_node_data(ibnex_node_data_t *);
121 int			ibnex_ioc_initnode_all_pi(ibdm_ioc_info_t *);
122 static int		ibnex_ioc_initnode_pdip(ibnex_node_data_t *,
123 			    ibdm_ioc_info_t *, dev_info_t *);
124 static int		ibnex_create_ioc_node_prop(
125 			    ibdm_ioc_info_t *, dev_info_t *);
126 static int		ibnex_create_ioc_compatible_prop(
127 			    dev_info_t *, ib_dm_ioc_ctrl_profile_t *);
128 uint64_t		ibnex_str2hex(char *, int, int *);
129 static int		ibnex_str2int(char *, int, int *);
130 static int		ibnex_create_ioc_portgid_prop(
131 			    dev_info_t *, ibdm_ioc_info_t *);
132 static void		ibnex_wakeup_reprobe_ioc(ibnex_node_data_t *, int);
133 static void		ibnex_wakeup_reprobe_all();
134 ibt_status_t		ibnex_ibtl_callback(ibtl_ibnex_cb_args_t *);
135 static int		ibnex_prom_devname_to_pkey_n_portnum(
136 			    char *, ib_pkey_t *, uint8_t *);
137 void			ibnex_pseudo_initnodes(void);
138 static char		*ibnex_lookup_named_prop(ddi_prop_t *, char *);
139 static void		ibnex_pseudo_node_cleanup(void);
140 static int		ibnex_name_child(dev_info_t *, char *, int);
141 static int		ibnex_name_pseudo_child(dev_info_t *, char *);
142 
143 void			ibnex_reprobe_ioc_dev(void *);
144 void			ibnex_reprobe_ioc_all();
145 static void		ibnex_update_prop(ibnex_node_data_t *,
146 			    ibdm_ioc_info_t *);
147 static ibnex_rval_t	ibnex_unique_svcname(char *);
148 static void		ibnex_handle_reprobe_dev(void *arg);
149 
150 extern int		ibnex_open(dev_t *, int, int, cred_t *);
151 extern int		ibnex_close(dev_t, int, int, cred_t *);
152 extern int		ibnex_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
153 extern int		ibnex_offline_childdip(dev_info_t *);
154 
155 static int		ibnex_ioc_create_pi(
156 			    ibdm_ioc_info_t *, ibnex_node_data_t *,
157 			    dev_info_t *, int *);
158 static int		ibnex_bus_power(dev_info_t *, void *,
159 			    pm_bus_power_op_t, void *, void *);
160 int			ibnex_pseudo_create_all_pi(ibnex_node_data_t *);
161 static int		ibnex_pseudo_create_pi_pdip(ibnex_node_data_t *,
162 			    dev_info_t *);
163 static int		ibnex_pseudo_config_one(
164 			    ibnex_node_data_t *, char *, dev_info_t *);
165 static int		ibnex_pseudo_mdi_config_one(int, void *, dev_info_t **,
166 			    char *, char *);
167 static void		ibnex_config_pseudo_all(dev_info_t *);
168 static int		ibnex_ioc_bus_config_one(dev_info_t **, uint_t,
169 			    ddi_bus_config_op_t, void *, dev_info_t **, int *);
170 static int		ibnex_is_merge_node(dev_info_t *);
171 static void		ibnex_hw_in_dev_tree(char *);
172 static int		ibnex_ioc_config_from_pdip(ibdm_ioc_info_t *,
173     dev_info_t *, int);
174 static int		ibnex_ioc_pi_exists(ibnex_node_data_t *, dev_info_t *);
175 static int		ibnex_ioc_pi_reachable(ibdm_ioc_info_t *,
176     dev_info_t *);
177 
178 /*
179  * The bus_ops structure defines the capabilities of HCA nexus driver.
180  */
181 struct bus_ops ibnex_ci_busops = {
182 	BUSO_REV,
183 	nullbusmap,		/* bus_map */
184 	NULL,			/* bus_get_intrspec */
185 	NULL,			/* bus_add_intrspec */
186 	NULL,			/* bus_remove_intrspec */
187 	ibnex_map_fault,	/* Map Fault */
188 	ddi_no_dma_map,		/* DMA related entry points */
189 	NULL,
190 	NULL,
191 	NULL,
192 	NULL,
193 	NULL,
194 	NULL,
195 	NULL,
196 	ibnex_busctl,		/* bus_ctl */
197 	ddi_bus_prop_op,	/* bus_prop_op */
198 	NULL,			/* bus_get_eventcookie	*/
199 	NULL,			/* bus_add_eventcall	*/
200 	NULL,			/* bus_remove_eventcall	*/
201 	NULL,			/* bus_post_event	*/
202 	NULL,
203 	ibnex_bus_config,	/* bus config */
204 	ibnex_bus_unconfig	/* bus unconfig */
205 };
206 
207 /*
208  * Prototype declarations for the VHCI options
209  */
210 /*
211  * Functions registered with the mpxio framework
212  */
213 static int ib_vhci_pi_init(dev_info_t *, mdi_pathinfo_t *, int);
214 static int ib_vhci_pi_uninit(dev_info_t *, mdi_pathinfo_t *, int);
215 static int ib_vhci_pi_state_change(dev_info_t *, mdi_pathinfo_t *,
216 		mdi_pathinfo_state_t, uint32_t, int);
217 static int ib_vhci_failover(dev_info_t *, dev_info_t *, int);
218 
219 
220 static mdi_vhci_ops_t ibnex_vhci_ops = {
221 	MDI_VHCI_OPS_REV,
222 	ib_vhci_pi_init,
223 	ib_vhci_pi_uninit,
224 	ib_vhci_pi_state_change,
225 	ib_vhci_failover
226 };
227 
228 
229 /*
230  * The  bus_ops  structure  defines the  capabilities  of IB nexus driver.
231  * IB nexus drivers does not  support any DMA  operations for its children
232  * as there is  no  such concept in Infiniband.  All the memory operations
233  * and DMA operations required by the child drivers can be performed using
234  * the IBTF API.
235  */
236 struct bus_ops ibnex_bus_ops = {
237 	BUSO_REV,
238 	nullbusmap,		/* bus_map */
239 	NULL,			/* bus_get_intrspec */
240 	NULL,			/* bus_add_intrspec */
241 	NULL,			/* bus_remove_intrspec */
242 	ibnex_map_fault,	/* Map Fault */
243 	ddi_no_dma_map,		/* DMA related entry points */
244 	ddi_no_dma_allochdl,
245 	NULL,
246 	NULL,
247 	NULL,
248 	NULL,
249 	NULL,
250 	NULL,
251 	ibnex_busctl,		/* bus_ctl */
252 	ddi_bus_prop_op,	/* bus_prop_op */
253 	ibnex_get_eventcookie,	/* bus_get_eventcookie	*/
254 	ibnex_add_eventcall,	/* bus_add_eventcall	*/
255 	ibnex_remove_eventcall,	/* bus_remove_eventcall	*/
256 	ibnex_post_event,		/* bus_post_event	*/
257 	NULL,
258 	ibnex_bus_config,	/* bus config */
259 	ibnex_bus_unconfig,	/* bus unconfig */
260 	NULL,			/* bus fm init */
261 	NULL,			/* bus fm fini */
262 	NULL,			/* bus fm access enter */
263 	NULL,			/* bus fm access exit */
264 	ibnex_bus_power		/* bus power */
265 };
266 
267 /* ibnex cb_ops */
268 static struct cb_ops ibnex_cbops = {
269 	ibnex_open,		/* open */
270 	ibnex_close,		/* close */
271 	nodev,			/* strategy */
272 	nodev,			/* print */
273 	nodev,			/* dump */
274 	nodev,			/* read */
275 	nodev,			/* write */
276 	ibnex_ioctl,		/* ioctl */
277 	nodev,			/* devmap */
278 	nodev,			/* mmap */
279 	nodev,			/* segmap */
280 	nochpoll,		/* poll */
281 	ddi_prop_op,		/* prop_op */
282 	NULL,			/* stream */
283 	D_MP,			/* cb_flag */
284 	CB_REV, 		/* rev */
285 	nodev,			/* int (*cb_aread)() */
286 	nodev			/* int (*cb_awrite)() */
287 };
288 
289 /*
290  * Device options
291  * Note: ddi_no_info needs to change during devfs time frame. The drivers
292  *	 with 1 to 1 mapping between minor node and instance should use
293  *	 ddi_1to1_info. (See bug id 4424752)
294  */
295 static struct dev_ops ibnex_ops = {
296 	DEVO_REV,		/* devo_rev, */
297 	0,			/* refcnt  */
298 	ibnex_getinfo,		/* info */
299 	nulldev,		/* identify */
300 	nulldev,		/* probe */
301 	ibnex_attach,		/* attach */
302 	ibnex_detach,		/* detach */
303 	nodev,			/* reset */
304 	&ibnex_cbops,		/* driver ops - devctl interfaces */
305 	&ibnex_bus_ops,		/* bus operations */
306 	nulldev,		/* power */
307 	ddi_quiesce_not_needed,		/* quiesce */
308 };
309 
310 /* Module linkage information for the kernel.  */
311 static struct modldrv modldrv = {
312 	&mod_driverops,		/* Driver module */
313 	"IB nexus",		/* Driver name and version */
314 	&ibnex_ops,		/* driver ops */
315 };
316 
317 static struct modlinkage modlinkage = {
318 	MODREV_1, (void *)&modldrv, NULL
319 };
320 
321 /*
322  * Global per-instance IB Nexus data.
323  * There is only one instance of IB Nexus supported.
324  */
325 ibnex_t ibnex;
326 #ifdef __lock_lint
327 extern ibdm_t ibdm;
328 #endif
329 _NOTE(MUTEX_PROTECTS_DATA(ibnex.ibnex_mutex, ibnex_s))
330 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibnex.ibnex_num_comm_svcs
331 	ibnex.ibnex_comm_svc_names ibnex.ibnex_nvppa_comm_svcs
332 	ibnex.ibnex_vppa_comm_svc_names ibnex.ibnex_nhcasvc_comm_svcs
333 	ibnex.ibnex_hcasvc_comm_svc_names ibnex.ibnex_ioc_list))
334 _NOTE(MUTEX_PROTECTS_DATA(ibnex.ibnex_mutex, ibnex_node_data_s))
335 _NOTE(LOCK_ORDER(ibdm.ibdm_hl_mutex ibnex.ibnex_mutex))
336 
337 /* The port settling time in seconds */
338 int	ibnex_port_settling_time = 30;
339 
340 /* create an array of properties supported, easier to add new ones here */
341 static struct ibnex_property {
342 	char			*name;
343 	ibnex_node_type_t	type;
344 } ibnex_properties[]  = {
345 	{ "port-svc-list",  IBNEX_PORT_COMMSVC_NODE},
346 	{ "vppa-svc-list",  IBNEX_VPPA_COMMSVC_NODE},
347 	{ "hca-svc-list",	IBNEX_HCASVC_COMMSVC_NODE}
348 };
349 
350 #define	N_IBNEX_PROPS	(sizeof (ibnex_properties))/ \
351 				(sizeof (struct ibnex_property))
352 
353 /*
354  * Event Definition
355  *	Single event, event name defined in ibti_common.h.
356  *	Event posted to specific child handler. Event posted
357  *	at kernel priority.
358  */
359 static ndi_event_definition_t ibnex_ndi_event_defs[] = {
360 	{IB_EVENT_TAG_PROP_UPDATE,  IB_PROP_UPDATE_EVENT, EPL_KERNEL,
361 		NDI_EVENT_POST_TO_TGT}
362 };
363 
364 #define	IB_N_NDI_EVENTS	\
365 	(sizeof (ibnex_ndi_event_defs) / sizeof (ndi_event_definition_t))
366 
367 static ndi_event_set_t ib_ndi_events = {
368 	NDI_EVENTS_REV1, IB_N_NDI_EVENTS, ibnex_ndi_event_defs};
369 static int	ibnex_hw_status = IBNEX_DEVTREE_NOT_CHECKED;
370 
371 
372 /*
373  * _init
374  *	Loadable module init, called before any other module.
375  */
376 int
377 _init(void)
378 {
379 	int	error;
380 	char	**hca_driver_list;
381 	int	i, ndrivers;
382 
383 	if (ibnex_hw_status == IBNEX_DEVTREE_NOT_CHECKED) {
384 		ibnex_hw_status = IBNEX_HW_NOT_IN_DEVTREE;
385 		hca_driver_list = mdi_get_phci_driver_list("ib", &ndrivers);
386 		for (i = 0; i < ndrivers; i++) {
387 			ibnex_hw_in_dev_tree(hca_driver_list[i]);
388 			if (ibnex_hw_status == IBNEX_HW_IN_DEVTREE)
389 				break;
390 		}
391 		mdi_free_phci_driver_list(hca_driver_list, ndrivers);
392 	}
393 
394 	/*
395 	 * IB Nexus _init can be called while force attaching
396 	 * IB Nexus driver or when a HCA is hotplugged.
397 	 *
398 	 * If IB HW is not in device tree or if no HCA driver
399 	 * has been attached, fail IB Nexus _init().
400 	 */
401 	if (ibnex_hw_status == IBNEX_HW_NOT_IN_DEVTREE &&
402 	    ibt_hw_is_present() == 0) {
403 		IBTF_DPRINTF_L4("ibnex", "\t_init: NO IB HW");
404 		return (DDI_FAILURE);
405 	}
406 
407 	IBTF_DPRINTF_L4("ibnex", "\t_init");
408 	mutex_init(&ibnex.ibnex_mutex, NULL, MUTEX_DRIVER, NULL);
409 	cv_init(&ibnex.ibnex_reprobe_cv, NULL, CV_DRIVER, NULL);
410 	if ((error = mod_install(&modlinkage)) != 0) {
411 		IBTF_DPRINTF_L2("ibnex", "\t_init: mod_install failed");
412 		mutex_destroy(&ibnex.ibnex_mutex);
413 		cv_destroy(&ibnex.ibnex_reprobe_cv);
414 	} else {
415 		ibdm_ibnex_register_callback(ibnex_dm_callback);
416 		ibtl_ibnex_register_callback(ibnex_ibtl_callback);
417 	}
418 	return (error);
419 }
420 
421 
422 /*
423  * _fini
424  *	Prepares a module for unloading.
425  */
426 int
427 _fini(void)
428 {
429 	int	error;
430 
431 	IBTF_DPRINTF_L4("ibnex", "\t_fini");
432 	if ((error = mod_remove(&modlinkage)) != 0) {
433 		return (error);
434 	}
435 	ibdm_ibnex_unregister_callback();
436 	ibtl_ibnex_unregister_callback();
437 	mutex_destroy(&ibnex.ibnex_mutex);
438 	cv_destroy(&ibnex.ibnex_reprobe_cv);
439 	return (0);
440 }
441 
442 
443 /*
444  * _info
445  *	Returns information about loadable module.
446  */
447 int
448 _info(struct modinfo *modinfop)
449 {
450 	IBTF_DPRINTF_L4("ibnex", "\t_info");
451 	return (mod_info(&modlinkage, modinfop));
452 }
453 
454 
455 /*
456  * ibnex_attach
457  *	Configure and attach an instance of the IB Nexus driver
458  *	Only one instance of IB Nexus is supported
459  *	Create a minor node for cfgadm purpose
460  *	Initialize communication services
461  *	Register callback with IBDM
462  *	Register callback with IBTL
463  */
464 static int
465 ibnex_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
466 {
467 	int		i;
468 	int		instance = ddi_get_instance(dip);
469 
470 	IBTF_DPRINTF_L4("ibnex", "\tattach: device = %p cmd = %x)", dip, cmd);
471 
472 	switch (cmd) {
473 	case DDI_ATTACH:
474 		break;
475 	case DDI_RESUME:
476 		IBTF_DPRINTF_L4("ibnex", "\tattach: RESUME");
477 		return (DDI_SUCCESS);
478 	default:
479 		return (DDI_FAILURE);
480 	}
481 
482 	/* Fail attach for more than one instance */
483 	mutex_enter(&ibnex.ibnex_mutex);
484 	if (ibnex.ibnex_dip != NULL) {
485 		mutex_exit(&ibnex.ibnex_mutex);
486 		return (DDI_FAILURE);
487 	}
488 	mutex_exit(&ibnex.ibnex_mutex);
489 
490 	/* Register with MPxIO framework */
491 
492 	if (mdi_vhci_register(MDI_HCI_CLASS_IB, dip, &ibnex_vhci_ops, 0)
493 	    != MDI_SUCCESS) {
494 		IBTF_DPRINTF_L2("ibnex",
495 		    "\tattach: mdi_vhci_register() failed");
496 		return (DDI_FAILURE);
497 	}
498 
499 
500 	/*
501 	 * Create the "fabric" devctl minor-node for IB DR support.
502 	 * The minor number for the "devctl" node is in the same format
503 	 * as the AP minor nodes.
504 	 */
505 	if (ddi_create_minor_node(dip, IBNEX_FABRIC, S_IFCHR, instance,
506 	    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
507 		IBTF_DPRINTF_L2("ibnex",
508 		    "\tattach: failed to create fabric minornode");
509 		(void) mdi_vhci_unregister(dip, 0);
510 		return (DDI_FAILURE);
511 	}
512 
513 
514 	/*
515 	 * Set pm-want-child-notification property for
516 	 * power management of the phci and client
517 	 */
518 	if (ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP,
519 	    "pm-want-child-notification?", NULL, NULL) != DDI_PROP_SUCCESS) {
520 		IBTF_DPRINTF_L2("ibnex",
521 		    "_attach: create pm-want-child-notification failed");
522 		(void) ddi_remove_minor_node(dip, NULL);
523 		(void) mdi_vhci_unregister(dip, 0);
524 		return (DDI_FAILURE);
525 	}
526 
527 	mutex_enter(&ibnex.ibnex_mutex);
528 	ibnex.ibnex_dip  = dip;
529 	mutex_exit(&ibnex.ibnex_mutex);
530 
531 	/*
532 	 * Event Handling: Definition and Binding.
533 	 */
534 	if (ndi_event_alloc_hdl(dip, 0, &ibnex.ibnex_ndi_event_hdl,
535 	    NDI_SLEEP) != NDI_SUCCESS) {
536 		(void) ddi_remove_minor_node(dip, NULL);
537 		IBTF_DPRINTF_L2("ibnex",
538 		    "_attach: ndi_event_alloc_hdl failed");
539 		(void) mdi_vhci_unregister(dip, 0);
540 		return (DDI_FAILURE);
541 	}
542 	if (ndi_event_bind_set(ibnex.ibnex_ndi_event_hdl, &ib_ndi_events,
543 	    NDI_SLEEP) != NDI_SUCCESS) {
544 		(void) ddi_remove_minor_node(dip, NULL);
545 		(void) ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl);
546 		IBTF_DPRINTF_L2("ibnex",
547 		    "_attach: ndi_event_bind_set failed");
548 		(void) mdi_vhci_unregister(dip, 0);
549 		return (DDI_FAILURE);
550 	}
551 
552 	for (i = 0; i < N_IBNEX_PROPS; i++) {
553 		if (ibnex_comm_svc_init(ibnex_properties[i].name,
554 		    ibnex_properties[i].type) != IBNEX_SUCCESS) {
555 			ibnex_comm_svc_fini();
556 			(void) ndi_event_unbind_set(ibnex.ibnex_ndi_event_hdl,
557 			    &ib_ndi_events, NDI_SLEEP);
558 			(void) ddi_remove_minor_node(dip, NULL);
559 			(void) ndi_event_free_hdl(
560 			    ibnex.ibnex_ndi_event_hdl);
561 			ibnex.ibnex_ndi_event_hdl = NULL;
562 			IBTF_DPRINTF_L2("ibnex", "_attach: ibnex_comm_svc_init"
563 			    " failed %s", ibnex_properties[i].name);
564 			(void) mdi_vhci_unregister(dip, 0);
565 			return (DDI_FAILURE);
566 		}
567 	}
568 
569 	/*
570 	 * before anything else comes up:
571 	 * Initialize the internal list of pseudo device nodes by
572 	 * getting all pseudo children of "ib" and processing them.
573 	 */
574 	ibnex_pseudo_initnodes();
575 
576 	return (DDI_SUCCESS);
577 }
578 
579 
580 /*
581  * ibnex_getinfo()
582  * Given the device number, return the devinfo pointer or the
583  * instance number.
584  * Note: always succeed DDI_INFO_DEVT2INSTANCE, even before attach.
585  */
586 
587 /*ARGSUSED*/
588 static int
589 ibnex_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
590 {
591 	int ret = DDI_SUCCESS;
592 
593 	IBTF_DPRINTF_L4("ibnex", "\tgetinfo: Begin");
594 	switch (cmd) {
595 	case DDI_INFO_DEVT2DEVINFO:
596 		if (ibnex.ibnex_dip != NULL)
597 			*result = ibnex.ibnex_dip;
598 		else {
599 			*result = NULL;
600 			ret = DDI_FAILURE;
601 		}
602 		break;
603 
604 	case DDI_INFO_DEVT2INSTANCE:
605 		*result = 0;
606 		break;
607 
608 	default:
609 		ret = DDI_FAILURE;
610 	}
611 	return (ret);
612 }
613 
614 
615 /*
616  * ibnex_detach
617  *	Unregister callback with the IBDM
618  *	Unregister callback with the IBTL
619  *	Uninitialize the communication entries
620  *	Remove all the minor nodes created by this instance
621  */
622 static int
623 ibnex_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
624 {
625 
626 	IBTF_DPRINTF_L4("ibnex", "\tdetach: dip = %p cmd = %x)", dip, cmd);
627 
628 	switch (cmd) {
629 
630 	case DDI_DETACH:
631 		break;
632 	case DDI_SUSPEND:
633 		IBTF_DPRINTF_L4("ibnex", "\t_detach: Suspend");
634 		return (DDI_SUCCESS);
635 	default:
636 		return (DDI_FAILURE);
637 	}
638 
639 	mutex_enter(&ibnex.ibnex_mutex);
640 	if (ibt_hw_is_present()) {
641 		IBTF_DPRINTF_L2("ibnex",
642 		    "\tdetach: IB HW is present ");
643 		mutex_exit(&ibnex.ibnex_mutex);
644 		return (DDI_FAILURE);
645 	}
646 	if (ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl)) {
647 		IBTF_DPRINTF_L2("ibnex",
648 		    "\tdetach: ndi_event_free_hdl() failed");
649 		mutex_exit(&ibnex.ibnex_mutex);
650 		return (DDI_FAILURE);
651 	}
652 	ibnex.ibnex_ndi_event_hdl = NULL;
653 	ibnex.ibnex_prop_update_evt_cookie = NULL;
654 
655 	ibnex_pseudo_node_cleanup();
656 	ibnex_comm_svc_fini();
657 	ibnex_ioc_node_cleanup();
658 
659 	(void) ddi_remove_minor_node(dip, NULL);
660 	ibnex.ibnex_dip = NULL;
661 	mutex_exit(&ibnex.ibnex_mutex);
662 	(void) mdi_vhci_unregister(dip, 0);
663 	return (DDI_SUCCESS);
664 }
665 
666 
667 /*
668  * ibnex_pseudo_node_cleanup()
669  *	This checks if all the "dips" have been deallocated (implying
670  *	that all the children have been unconfigured) first.
671  *	If not, it just returns.
672  *	If yes, then it frees up memory allocated for devi_name,
673  *	node_addr, and property list.
674  */
675 static void
676 ibnex_pseudo_node_cleanup(void)
677 {
678 	ibnex_node_data_t	*nodep =  ibnex.ibnex_pseudo_node_head;
679 	ibnex_pseudo_node_t	*pseudo;
680 
681 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup:");
682 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
683 
684 	for (; nodep; nodep = nodep->node_next)
685 		if (nodep->node_dip)
686 			return;
687 
688 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup: freeing up memory");
689 	for (nodep =  ibnex.ibnex_pseudo_node_head; nodep;
690 	    nodep = nodep->node_next) {
691 
692 		pseudo = &nodep->node_data.pseudo_node;
693 		if (pseudo->pseudo_node_addr) {
694 			kmem_free(pseudo->pseudo_node_addr,
695 			    strlen(pseudo-> pseudo_node_addr) + 1);
696 			pseudo->pseudo_node_addr = NULL;
697 		}
698 
699 		if (pseudo->pseudo_devi_name) {
700 			kmem_free(pseudo->pseudo_devi_name,
701 			    strlen(pseudo-> pseudo_devi_name) + 1);
702 			pseudo->pseudo_devi_name = NULL;
703 		}
704 
705 		if (pseudo->pseudo_unit_addr) {
706 			kmem_free(pseudo->pseudo_unit_addr,
707 			    pseudo->pseudo_unit_addr_len);
708 		}
709 	}
710 }
711 
712 
713 /*
714  * This functions wakes up any reprobe requests waiting for completion
715  * of reprobe of this IOC. It also send an NDI event, if  :
716  *
717  *	notify_flag is set. This is set if :
718  *		ibt_reprobe_ioc has returned with SUCCESS
719  *		IBTF client has not been notified for this node.
720  *	node_data->node_dip != NULL
721  *	node_state has IBNEX_NODE_REPROBE_NOTIFY_ALWAYS set
722  *	An NDI event cookie has been registered.
723  */
724 static void
725 ibnex_wakeup_reprobe_ioc(ibnex_node_data_t *node_data, int notify_flag)
726 {
727 	ddi_eventcookie_t	evt_cookie;
728 
729 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
730 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
731 
732 	if ((ibnex.ibnex_reprobe_state == IBNEX_REPROBE_IOC_WAIT) ||
733 	    (node_data->node_reprobe_state != 0)) {
734 		if (notify_flag && (node_data->node_dip != NULL) &&
735 		    (node_data->node_state &
736 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS) &&
737 		    (evt_cookie != NULL)) {
738 			ibt_prop_update_payload_t	evt_data;
739 
740 			mutex_exit(&ibnex.ibnex_mutex);
741 
742 			bzero(&evt_data, sizeof (evt_data));
743 			if (ndi_post_event(ibnex.ibnex_dip,
744 			    node_data->node_dip,
745 			    evt_cookie, &evt_data) != NDI_SUCCESS)
746 				IBTF_DPRINTF_L2("ibnex",
747 				    "\tndi_post_event failed\n");
748 
749 			mutex_enter(&ibnex.ibnex_mutex);
750 		}
751 
752 		node_data->node_reprobe_state = 0;
753 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
754 	}
755 	node_data->node_reprobe_state = 0;
756 }
757 
758 /*
759  * This function wakes up any reprobe request waiting for completion
760  * of reprobe of all IOCs.
761  */
762 static void
763 ibnex_wakeup_reprobe_all()
764 {
765 	ibnex_node_data_t *ioc_node;
766 
767 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
768 
769 	/* Notify if another reprobe_all is pending */
770 	if (ibnex.ibnex_reprobe_state == IBNEX_REPROBE_ALL_WAIT) {
771 		ibnex.ibnex_reprobe_state = 0;
772 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
773 	}
774 	ibnex.ibnex_reprobe_state = 0;
775 
776 	/*
777 	 * The IOC may be hot-removed after the reprobe request.
778 	 * Reset the reprobe states for such IOCs.
779 	 */
780 	for (ioc_node = ibnex.ibnex_ioc_node_head; ioc_node;
781 	    ioc_node = ioc_node->node_next) {
782 		if (ioc_node->node_reprobe_state != 0) {
783 			ibnex_wakeup_reprobe_ioc(ioc_node, 1);
784 		}
785 	}
786 }
787 
788 /*
789  * ibnex_ibnex_callback:
790  *	IBTL_IBNEX_IBC_INIT:
791  *		Called from ibc_init() which is called from
792  *		HCA driver _init entry point
793  *		Initializes the HCA dev_ops structure with default
794  *		IB nexus structure.
795  *	IBTL_IBNEX_IBC_FINI:
796  *		Called from ibc_fini() which is called from
797  *		HCA driver _fini entry point
798  *		Un-Initializes the HCA dev_ops structure with default
799  *		IB nexus strucuture.
800  *	Returns IBT_SUCCESS
801  */
802 ibt_status_t
803 ibnex_ibtl_callback(ibtl_ibnex_cb_args_t *cb_args)
804 {
805 	int			retval = IBT_SUCCESS;
806 	struct dev_ops 		*hca_dev_ops;
807 	dev_info_t		*clnt_dip;
808 	ibnex_node_data_t	*node_data;
809 
810 	IBTF_DPRINTF_L5("ibnex", "\tibtl_callback");
811 
812 	switch (cb_args->cb_flag) {
813 	case IBTL_IBNEX_IBC_INIT:
814 		/*
815 		 * Get the devops structure of the HCA,
816 		 * and put IB nexus default busops vector in its place.
817 		 */
818 		hca_dev_ops = ((struct modldrv *)
819 		    (cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
820 		ASSERT((hca_dev_ops) && (hca_dev_ops->devo_bus_ops == NULL));
821 		hca_dev_ops->devo_bus_ops = &ibnex_ci_busops;
822 		break;
823 
824 	case IBTL_IBNEX_IBC_FINI:
825 		hca_dev_ops = ((struct modldrv *)
826 		    (cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
827 		hca_dev_ops->devo_bus_ops = NULL;
828 		break;
829 
830 	case IBTL_IBNEX_REPROBE_DEV_REQ:
831 		/* IBTL pass down request for ibt_reprobe_dev */
832 		clnt_dip = cb_args->cb_dip;
833 		ASSERT(clnt_dip);
834 
835 		node_data = ddi_get_parent_data(clnt_dip);
836 		ASSERT(node_data);
837 
838 		/* Reprobe for IOC nodes only */
839 		ASSERT(node_data->node_type == IBNEX_IOC_NODE);
840 
841 		/*
842 		 * Start the reprobe. This could sleep as it is not
843 		 * from interrupt context.
844 		 */
845 		if (taskq_dispatch(system_taskq, ibnex_handle_reprobe_dev,
846 		    clnt_dip, TQ_SLEEP) == 0) {
847 			IBTF_DPRINTF_L2("ibnex",
848 			    "ibnex_ibtl_callback: taskq_dispatch failed");
849 			mutex_enter(&ibnex.ibnex_mutex);
850 			ibnex_wakeup_reprobe_ioc(node_data, 0);
851 			mutex_exit(&ibnex.ibnex_mutex);
852 			return (IBT_INSUFF_KERNEL_RESOURCE);
853 		}
854 		return (IBT_SUCCESS);
855 	}
856 
857 	return (retval);
858 }
859 
860 
861 /*
862  * Bus-ops entry points
863  */
864 
865 /*
866  * ibnex_map_fault
867  * 	IOC drivers need not map memory. Return failure to fail any
868  *	such calls.
869  */
870 /*ARGSUSED*/
871 static int
872 ibnex_map_fault(dev_info_t *dip, dev_info_t *rdip, struct hat *hat,
873     struct seg *seg, caddr_t addr, struct devpage *dp, pfn_t pfn,
874     uint_t prot, uint_t lock)
875 {
876 	return (DDI_FAILURE);
877 }
878 
879 
880 /*
881  * ibnex_busctl
882  * 	bus_ctl bus_ops entry point
883  */
884 /*ARGSUSED*/
885 static int
886 ibnex_busctl(dev_info_t *dip, dev_info_t *rdip,
887     ddi_ctl_enum_t ctlop, void *arg, void *result)
888 {
889 	dev_info_t		*child_dip;
890 
891 	IBTF_DPRINTF_L4("ibnex",
892 	    "\tbusctl: dip = %p, rdip = %p, ctlop = %x,", dip, rdip, ctlop);
893 	IBTF_DPRINTF_L4("ibnex", "\tbusctl: targ = %p, result %p", arg, result);
894 
895 	switch (ctlop) {
896 	case DDI_CTLOPS_REPORTDEV:
897 		if (rdip == NULL) {
898 			return (DDI_FAILURE);
899 		}
900 
901 		/* Log the relevant details of dip to sysbuf */
902 		cmn_err(CE_CONT, "?IB device: %s@%s, %s%d\n",
903 		    ddi_node_name(rdip), ddi_get_name_addr(rdip),
904 		    ddi_driver_name(rdip), ddi_get_instance(rdip));
905 
906 		return (DDI_SUCCESS);
907 
908 	case DDI_CTLOPS_INITCHILD:
909 		child_dip = (dev_info_t *)arg;
910 		return (ibnex_init_child(child_dip));
911 
912 	case DDI_CTLOPS_UNINITCHILD:
913 		child_dip = (dev_info_t *)arg;
914 		ddi_set_name_addr(child_dip, NULL);
915 		return (DDI_SUCCESS);
916 
917 	case DDI_CTLOPS_ATTACH:
918 	case DDI_CTLOPS_DETACH:
919 	case DDI_CTLOPS_POWER :
920 		return (DDI_SUCCESS);
921 
922 	case DDI_CTLOPS_SIDDEV:
923 		/*
924 		 * Return DDI_SUCCESS for IOC/PORT/VPPA nodes and
925 		 * DDI_FAILURE for the nodes enumerated by a Pseudo file.
926 		 */
927 		return (ndi_dev_is_persistent_node(rdip) ?
928 		    DDI_SUCCESS : DDI_FAILURE);
929 
930 
931 	case DDI_CTLOPS_IOMIN:
932 		/*
933 		 * Return DDI_SUCCESS, so that consistent buf alloc
934 		 * gets the default DMA IO minimum for the platform
935 		 */
936 		return (DDI_SUCCESS);
937 
938 	/*
939 	 * These ops correspond to functions that "shouldn't" be
940 	 * called by IB Nexus driver.
941 	 */
942 	case DDI_CTLOPS_DMAPMAPC:
943 	case DDI_CTLOPS_REPORTINT:
944 	case DDI_CTLOPS_REGSIZE:
945 	case DDI_CTLOPS_NREGS:
946 	case DDI_CTLOPS_SLAVEONLY:
947 	case DDI_CTLOPS_AFFINITY:
948 	case DDI_CTLOPS_POKE:
949 	case DDI_CTLOPS_PEEK:
950 		IBTF_DPRINTF_L2("ibnex",
951 		    "%s%d: invalid op (%d) from %s inst%d",
952 		    ddi_get_name(dip), ddi_get_instance(dip),
953 		    ctlop, ddi_get_name(rdip), ddi_get_instance(rdip));
954 		return (DDI_FAILURE);
955 
956 	/*
957 	 * Everything else (PTOB/BTOP/BTOPR/DVMAPAGESIZE requests) we
958 	 * pass up
959 	 */
960 	default:
961 		return (ddi_ctlops(dip, rdip, ctlop, arg, result));
962 	}
963 }
964 
965 
966 /*
967  * ibnex_init_child()
968  *
969  * Initialize a child device node. This is called for the DDI_CTLOPS_INITCHILD
970  * entry. Function returns DDI_SUCCESS,  DDI_FAILURE or DDI_NOT_WELL_FORMED.
971  */
972 static int
973 ibnex_init_child(dev_info_t *child)
974 {
975 	int			ret;
976 	char			name[MAXNAMELEN];
977 
978 	IBTF_DPRINTF_L4("ibnex", "\tinit_child: child = %p", child);
979 
980 	/* Handle Pseudo nodes of client children */
981 	if (ndi_dev_is_persistent_node(child) == 0) {
982 		/* Skip nodes without ib-node-type="merge" */
983 		if (ibnex_is_merge_node(child) != IBNEX_SUCCESS)
984 			return (DDI_FAILURE);
985 
986 		if (ibnex_name_pseudo_child(child, name) != DDI_SUCCESS)
987 			return (DDI_FAILURE);
988 
989 		ddi_set_name_addr(child, name);
990 		/*
991 		 * Merge the .conf node
992 		 */
993 		if (ndi_merge_node(child,
994 		    ibnex_name_child) == DDI_SUCCESS) {
995 			ddi_set_name_addr(child, NULL);
996 			return (DDI_FAILURE);
997 		}
998 		return (DDI_NOT_WELL_FORMED);
999 
1000 	}
1001 
1002 	if ((ret = ibnex_name_child(child, name, 0)) != DDI_SUCCESS)
1003 		return (ret);
1004 
1005 	ddi_set_name_addr(child, name);
1006 
1007 	return (DDI_SUCCESS);
1008 }
1009 
1010 
1011 int
1012 ibnex_name_pseudo_child(dev_info_t *child, char *name)
1013 {
1014 	char **unit_addr;
1015 	uint_t n;
1016 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, child,
1017 	    DDI_PROP_DONTPASS, "unit-address", &unit_addr, &n) !=
1018 	    DDI_PROP_SUCCESS) {
1019 		IBTF_DPRINTF_L4("ibnex",
1020 		    "\tname_pseudo_child: cannot find unit-address in %s.conf",
1021 		    ddi_get_name(child));
1022 		return (DDI_FAILURE);
1023 	}
1024 	if (n != 1 || *unit_addr == NULL || **unit_addr == 0) {
1025 		cmn_err(CE_WARN, "unit-address property in %s.conf"
1026 		    " not well-formed", ddi_get_name(child));
1027 		ddi_prop_free(unit_addr);
1028 		return (DDI_FAILURE);
1029 	}
1030 	(void) snprintf(name, MAXNAMELEN, "%s", *unit_addr);
1031 	ddi_prop_free(unit_addr);
1032 	return (DDI_SUCCESS);
1033 }
1034 
1035 
1036 /*ARGSUSED*/
1037 int
1038 ibnex_name_child(dev_info_t *child, char *name, int flag)
1039 {
1040 	ibnex_pseudo_node_t	*pseudo;
1041 	ibnex_node_data_t	*node_datap;
1042 	ibnex_port_node_t	*port_node;
1043 	ibnex_ioc_node_t	*ioc;
1044 
1045 	node_datap = ddi_get_parent_data(child);
1046 	if (node_datap == NULL) {
1047 		IBTF_DPRINTF_L2("ibnex", "\tname_child: Node data is NULL");
1048 		return (DDI_NOT_WELL_FORMED);
1049 	}
1050 	IBTF_DPRINTF_L4("ibnex", "\tname_sid_child: Node data %p"
1051 	    "Node type %x", node_datap, node_datap->node_type);
1052 	switch (node_datap->node_type) {
1053 	case IBNEX_PORT_COMMSVC_NODE:
1054 		port_node = &node_datap->node_data.port_node;
1055 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1056 		    port_node->port_num,
1057 		    ibnex.ibnex_comm_svc_names[port_node->port_commsvc_idx]);
1058 		break;
1059 	case IBNEX_VPPA_COMMSVC_NODE:
1060 		port_node = &node_datap->node_data.port_node;
1061 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,%x,%s",
1062 		    port_node->port_num, port_node->port_pkey, ibnex.
1063 		    ibnex_vppa_comm_svc_names[port_node->port_commsvc_idx]);
1064 		break;
1065 	case IBNEX_HCASVC_COMMSVC_NODE:
1066 		port_node = &node_datap->node_data.port_node;
1067 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1068 		    port_node->port_num,
1069 		    ibnex.ibnex_hcasvc_comm_svc_names[port_node->
1070 		    port_commsvc_idx]);
1071 		break;
1072 	case IBNEX_IOC_NODE:
1073 		ioc = &node_datap->node_data.ioc_node;
1074 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%llX,%llX",
1075 		    (longlong_t)ioc->ioc_guid, (longlong_t)ioc->iou_guid);
1076 		break;
1077 	case IBNEX_PSEUDO_NODE:
1078 		pseudo = &node_datap->node_data.pseudo_node;
1079 		(void) snprintf(name,
1080 		    IBNEX_MAX_NODEADDR_SZ, pseudo->pseudo_unit_addr);
1081 		break;
1082 	default:
1083 		IBTF_DPRINTF_L2("ibnex", "\name_child: Not well formed");
1084 		return (DDI_NOT_WELL_FORMED);
1085 	}
1086 
1087 	return (DDI_SUCCESS);
1088 }
1089 
1090 
1091 /*
1092  * ibnex_bus_config()
1093  *
1094  * BUS_CONFIG_ONE:
1095  *	Enumerate the exact instance of the driver. Use the device node name
1096  *	to locate the exact instance.
1097  *	Query IBDM to find whether the hardware exits for the instance of the
1098  *	driver. If exists, create a device node and return NDI_SUCCESS.
1099  *
1100  * BUS_CONFIG_ALL:
1101  *	Enumerate all the instances of all the possible children (seen before
1102  *	and never seen before).
1103  *
1104  * BUS_CONFIG_DRIVER:
1105  *	Enumerate all the instances of a particular driver.
1106  */
1107 static int
1108 ibnex_bus_config(dev_info_t *parent, uint_t flag,
1109     ddi_bus_config_op_t op, void *devname, dev_info_t **child)
1110 {
1111 	int			ret = IBNEX_SUCCESS, len, circ, need_bus_config;
1112 	char 			*device_name, *cname = NULL, *caddr = NULL;
1113 	char			*device_name1;
1114 	char			*srvname, nameaddr[MAXNAMELEN];
1115 	dev_info_t		*cdip, *pdip = NULL;
1116 	ibnex_node_data_t	*node_data;
1117 	ibnex_port_node_t	*port_node;
1118 	int			use_mdi_devi_locking = 0;
1119 
1120 	if (parent != ibnex.ibnex_dip) {
1121 		/*
1122 		 * This must be an HCA.In a normal case HCA is setup as a phci.
1123 		 * If an HCA is in maintenance mode, its phci is not set up
1124 		 * but the driver is attached to update the firmware. In this
1125 		 * case, do not configure the MPxIO clients.
1126 		 */
1127 		if (mdi_component_is_phci(parent, NULL) == MDI_FAILURE) {
1128 			if (op == BUS_CONFIG_ALL || op == BUS_CONFIG_DRIVER)
1129 				return (NDI_SUCCESS);
1130 			else
1131 				return (NDI_FAILURE);
1132 		}
1133 
1134 		/* Set use_mdi_devi_locking appropriately */
1135 		if ((op != BUS_CONFIG_ONE) || (op == BUS_CONFIG_ONE &&
1136 		    strncmp((char *)devname, IBNEX_IBPORT_CNAME, 6) != 0)) {
1137 			IBTF_DPRINTF_L4("ibnex",
1138 			    "\tbus_config: using mdi_devi_enter");
1139 			use_mdi_devi_locking = 1;
1140 		}
1141 	}
1142 
1143 	if (use_mdi_devi_locking)
1144 		mdi_devi_enter(parent, &circ);
1145 	else
1146 		ndi_devi_enter(parent, &circ);
1147 
1148 	switch (op) {
1149 	case BUS_CONFIG_ONE:
1150 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ONE, "
1151 		    "parent %p", parent);
1152 
1153 		len = strlen((char *)devname) + 1;
1154 		device_name = i_ddi_strdup(devname, KM_SLEEP);
1155 		i_ddi_parse_name(device_name, &cname, &caddr, NULL);
1156 
1157 		if (caddr == NULL || (strlen(caddr) == 0)) {
1158 			kmem_free(device_name, len);
1159 			if (use_mdi_devi_locking)
1160 				mdi_devi_exit(parent, circ);
1161 			else
1162 				ndi_devi_exit(parent, circ);
1163 			return (NDI_FAILURE);
1164 		}
1165 
1166 		/*
1167 		 * i_ddi_parse_name() strips of the address portion
1168 		 * of the device name. Recreate device name for
1169 		 * ndi_devi_findchild
1170 		 */
1171 		device_name1 = i_ddi_strdup(devname, KM_SLEEP);
1172 
1173 		IBTF_DPRINTF_L4("ibnex",
1174 		    "\tbus_config: cname %s addr %s", cname, caddr);
1175 
1176 		cdip = ndi_devi_findchild(parent, device_name1);
1177 		if (cdip)
1178 			node_data = ddi_get_parent_data(cdip);
1179 		kmem_free(device_name1, len);
1180 		if (cdip == NULL || (node_data != NULL &&
1181 		    node_data->node_dip == NULL)) {
1182 			/* Node is not present */
1183 			if (strncmp(cname, IBNEX_IOC_CNAME, 3) == 0) {
1184 				if (use_mdi_devi_locking)
1185 					mdi_devi_exit(parent, circ);
1186 				else
1187 					ndi_devi_exit(parent, circ);
1188 
1189 				ret = ibnex_ioc_bus_config_one(&parent, flag,
1190 				    op, devname, child, &need_bus_config);
1191 				if (!need_bus_config) {
1192 					kmem_free(device_name, len);
1193 					return (ret);
1194 				}
1195 
1196 				if (use_mdi_devi_locking)
1197 					mdi_devi_enter(parent, &circ);
1198 				else
1199 					ndi_devi_enter(parent, &circ);
1200 			} else if ((strncmp(cname,
1201 			    IBNEX_IBPORT_CNAME, 6) == 0) &&
1202 			    (parent != ibnex.ibnex_dip)) { /* parent is HCA */
1203 				cdip = ibnex_config_port_node(parent, devname);
1204 				if (cdip)
1205 					ret = IBNEX_SUCCESS;
1206 				else
1207 					ret = IBNEX_FAILURE;
1208 			} else {
1209 				/*
1210 				 * if not IOC or PORT device then always
1211 				 * assume a Pseudo child
1212 				 *
1213 				 * if IB Nexus is the parent, call MDI.
1214 				 * else if HCA is the parent, enumerate
1215 				 * the Pseudo node.
1216 				 */
1217 				ret = IBNEX_SUCCESS;
1218 				ibnex_pseudo_initnodes();
1219 				if (parent == ibnex.ibnex_dip) {
1220 					if (use_mdi_devi_locking)
1221 						mdi_devi_exit(parent, circ);
1222 					else
1223 						ndi_devi_exit(parent, circ);
1224 
1225 					mutex_enter(&ibnex.ibnex_mutex);
1226 					ret = ibnex_pseudo_mdi_config_one(
1227 					    flag, devname, child, cname,
1228 					    caddr);
1229 					mutex_exit(&ibnex.ibnex_mutex);
1230 					kmem_free(device_name, len);
1231 					return (ret);
1232 				}
1233 				mutex_enter(&ibnex.ibnex_mutex);
1234 				ret = ibnex_pseudo_config_one(NULL,
1235 				    caddr, parent);
1236 				mutex_exit(&ibnex.ibnex_mutex);
1237 			}
1238 		}
1239 
1240 		if (strncmp(cname, IBNEX_IBPORT_CNAME, 6) == 0) {
1241 			/* Allows enumeration under PHCI */
1242 			flag |= NDI_MDI_FALLBACK;
1243 		}
1244 		kmem_free(device_name, len);
1245 		break;
1246 
1247 	case BUS_CONFIG_OBP_ARGS:
1248 		cdip = ibnex_config_obp_args(parent, devname);
1249 		if (cdip) {
1250 			/*
1251 			 * Boot case.
1252 			 * Special handling because the "devname"
1253 			 * format for the enumerated device is
1254 			 * different.
1255 			 */
1256 			node_data = ddi_get_parent_data(cdip);
1257 			port_node = &node_data->node_data.port_node;
1258 			if (node_data->node_type ==
1259 			    IBNEX_VPPA_COMMSVC_NODE) {
1260 				srvname =
1261 				    ibnex.ibnex_vppa_comm_svc_names[
1262 				    port_node->port_commsvc_idx];
1263 				(void) snprintf(nameaddr, MAXNAMELEN,
1264 				    "ibport@%x,%x,%s",
1265 				    port_node->port_num,
1266 				    port_node->port_pkey, srvname);
1267 			}
1268 			devname = (void *)nameaddr;
1269 		} else {
1270 			IBTF_DPRINTF_L2("ibnex",
1271 			    "\tbus_config: CONFIG_OBP_ARGS : invalid state!!");
1272 
1273 			ret = IBNEX_FAILURE;
1274 		}
1275 		break;
1276 	case BUS_CONFIG_ALL:
1277 		/*FALLTHRU*/
1278 	case BUS_CONFIG_DRIVER:
1279 		if (op == BUS_CONFIG_ALL)
1280 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ALL, "
1281 			    "parent %p", parent);
1282 		else
1283 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_DRIVER"
1284 			    ", parent %p", parent);
1285 
1286 		/*
1287 		 * No locks to be held while calling mdi_vhci_bus_config()
1288 		 * ibnex_config_all_children() holds appropriate locks.
1289 		 */
1290 		if (use_mdi_devi_locking)
1291 			mdi_devi_exit(parent, circ);
1292 		else
1293 			ndi_devi_exit(parent, circ);
1294 
1295 		/*
1296 		 * Drive CONFIG requests for IB Nexus parent through
1297 		 * MDI. This is needed to load the HCA drivers in x86 SRP
1298 		 * boot case.
1299 		 *
1300 		 * CONFIG Requests with HCA parent will probe devices using
1301 		 * ibdm and configure all children.
1302 		 */
1303 		if (parent == ibnex.ibnex_dip) {
1304 			ibdm_ioc_info_t	*ioc_list;
1305 
1306 			/*
1307 			 * Optimize the calls for each BUS_CONFIG_ALL request
1308 			 * to the IB Nexus dip. This is currently done for
1309 			 * each PDIP.
1310 			 */
1311 			if (ibnex.ibnex_ioc_list) {
1312 				IBTF_DPRINTF_L4("ibnex",
1313 				    "\tbus_config: freeing ioc_list %p",
1314 				    ibnex.ibnex_ioc_list);
1315 				ibdm_ibnex_free_ioc_list(ibnex.ibnex_ioc_list);
1316 				mutex_enter(&ibnex.ibnex_mutex);
1317 				ibnex.ibnex_ioc_list = NULL;
1318 				mutex_exit(&ibnex.ibnex_mutex);
1319 			}
1320 
1321 			/* Enumerate all the IOC's */
1322 			ibdm_ibnex_port_settle_wait(0,
1323 			    ibnex_port_settling_time);
1324 
1325 			ioc_list = ibdm_ibnex_get_ioc_list(
1326 			    IBDM_IBNEX_NORMAL_PROBE);
1327 			IBTF_DPRINTF_L4("ibnex",
1328 			    "\tbus_config: alloc ioc_list %p", ioc_list);
1329 			mutex_enter(&ibnex.ibnex_mutex);
1330 			ibnex.ibnex_ioc_list = ioc_list;
1331 			mutex_exit(&ibnex.ibnex_mutex);
1332 
1333 			ret = mdi_vhci_bus_config(parent,
1334 			    flag, op, devname, child, NULL);
1335 			return (ret);
1336 		} else {
1337 			ibnex_config_all_children(parent);
1338 
1339 			if (use_mdi_devi_locking)
1340 				mdi_devi_enter(parent, &circ);
1341 			else
1342 				ndi_devi_enter(parent, &circ);
1343 		}
1344 		break;
1345 	default:
1346 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: error");
1347 		ret = IBNEX_FAILURE;
1348 		break;
1349 	}
1350 
1351 	if (use_mdi_devi_locking)
1352 		mdi_devi_exit(parent, circ);
1353 	else
1354 		ndi_devi_exit(parent, circ);
1355 
1356 	if (ret == IBNEX_SUCCESS) {
1357 		if (op == BUS_CONFIG_OBP_ARGS)
1358 			op = BUS_CONFIG_ONE;
1359 
1360 		if (pdip == NULL)
1361 			pdip = parent;
1362 
1363 		ret = ndi_busop_bus_config(
1364 		    pdip, flag, op, devname, child, 0);
1365 		IBTF_DPRINTF_L4("ibnex", "\tbus_config:"
1366 		    "ndi_busop_bus_config : retval %d", ret);
1367 		return (ret);
1368 	}
1369 
1370 	return (NDI_FAILURE);
1371 }
1372 
1373 
1374 /*
1375  * ibnex_config_root_iocnode()
1376  *	Configures one particular instance of the IOC driver.
1377  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1378  */
1379 static int
1380 ibnex_config_root_iocnode(dev_info_t *parent, char *device_name)
1381 {
1382 	int			ret, port = 0, iter = 0;
1383 	boolean_t		displayed = B_FALSE;
1384 	char			*portstr;
1385 	ib_guid_t		hca_guid, iou_guid, ioc_guid;
1386 	ibdm_ioc_info_t		*ioc_info;
1387 	ibdm_port_attr_t	*port_attr;
1388 
1389 	IBTF_DPRINTF_L4("ibnex",
1390 	    "\tconfig_root_iocnode: name %s", device_name);
1391 
1392 	portstr = strstr(device_name, ":port=");
1393 	if (portstr == NULL) {
1394 		return (IBNEX_FAILURE);
1395 	}
1396 
1397 	portstr[0] = 0; portstr++;
1398 	if (ibnex_devname2port(portstr, &port)) {
1399 		IBTF_DPRINTF_L4("ibnex", "\tconfig_root_iocnode: invalid port");
1400 		return (IBNEX_FAILURE);
1401 	}
1402 
1403 	if (ibnex_devname_to_node_n_ioc_guids(
1404 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
1405 		return (IBNEX_FAILURE);
1406 	}
1407 
1408 	(void) snprintf(device_name, (IBNEX_MAX_NODEADDR_SZ + 4),
1409 	    "ioc@%llX,%llX", (longlong_t)ioc_guid, (longlong_t)iou_guid);
1410 
1411 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1412 	if ((port_attr = ibdm_ibnex_probe_hcaport(hca_guid, port)) == NULL) {
1413 		IBTF_DPRINTF_L2("ibnex",
1414 		    "\tconfig_root_iocnode: Port does not exist");
1415 		return (IBNEX_FAILURE);
1416 	}
1417 
1418 	/* Wait until "port is up" */
1419 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1420 		ibdm_ibnex_free_port_attr(port_attr);
1421 		delay(drv_usectohz(10000));
1422 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1423 		    hca_guid, port)) == NULL) {
1424 			return (IBNEX_FAILURE);
1425 		}
1426 
1427 		if (iter++ == 400) {
1428 			if (displayed == B_FALSE) {
1429 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1430 				    "initialization", port_attr->pa_port_num);
1431 				displayed = B_TRUE;
1432 			}
1433 		}
1434 	}
1435 	ibdm_ibnex_free_port_attr(port_attr);
1436 	IBTF_DPRINTF_L4("ibnex", "\tconfig_rootioc_node:"
1437 	    "Port is initialized");
1438 
1439 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) == NULL) {
1440 		ibdm_ibnex_free_ioc_list(ioc_info);
1441 		return (IBNEX_FAILURE);
1442 	}
1443 	mutex_enter(&ibnex.ibnex_mutex);
1444 	if ((ret = ibnex_ioc_config_from_pdip(ioc_info, parent, 0)) !=
1445 	    IBNEX_SUCCESS) {
1446 		IBTF_DPRINTF_L2("ibnex",
1447 		    "\tconfig_root_ioc_node failed for pdip %p", parent);
1448 	}
1449 	mutex_exit(&ibnex.ibnex_mutex);
1450 	ibdm_ibnex_free_ioc_list(ioc_info);
1451 	return (ret);
1452 }
1453 
1454 
1455 static int
1456 ibnex_devname2port(char *portstr, int *port)
1457 {
1458 	char	*temp;
1459 	int	ret = IBNEX_FAILURE;
1460 
1461 	IBTF_DPRINTF_L4("ibnex", "\tdevname2port: Begin");
1462 
1463 	temp = strchr(portstr, '=');
1464 	if (temp != NULL) {
1465 		temp++;
1466 		*port = ibnex_str2int(temp, strlen(temp), &ret);
1467 	}
1468 	return (ret);
1469 }
1470 
1471 
1472 /*
1473  * ibnex_config_all_children()
1474  *	Wait for lata SM initialization case before enumerating the nodes
1475  *	Get list of HCA's and HCA port information
1476  *		Create device device nodes and its node properties
1477  *		for port nodes and VPPA nodes
1478  *	Get list of all the IOC node information
1479  *		Create device nodes and its properties for all the IOCs
1480  *		if not created already
1481  *	Bind drivers for all the newly created device nodes
1482  *	Support Pseudo nodes enumerated using their .conf file
1483  */
1484 static void
1485 ibnex_config_all_children(dev_info_t *parent)
1486 {
1487 	int			ii;
1488 	ibdm_ioc_info_t		*ioc_list;
1489 	ibdm_hca_list_t		*hca_list;
1490 	ib_guid_t		hca_guid;
1491 	int			circ;
1492 
1493 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: Begin");
1494 
1495 	/*
1496 	 * Enumerate children of this HCA, port nodes,
1497 	 * VPPA & HCA_SVC nodes. Use ndi_devi_enter() for
1498 	 * locking. IB Nexus is enumerating the children
1499 	 * of HCA, not MPXIO clients.
1500 	 */
1501 	ndi_devi_enter(parent, &circ);
1502 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1503 	ibdm_ibnex_port_settle_wait(hca_guid, ibnex_port_settling_time);
1504 	hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1505 	if (hca_list == NULL) {
1506 		ndi_devi_exit(parent, circ);
1507 		return;
1508 	}
1509 	ibnex_create_hcasvc_nodes(parent, hca_list->hl_hca_port_attr);
1510 	for (ii = 0; ii < hca_list->hl_nports; ii++) {
1511 		ibnex_create_port_nodes(
1512 		    parent, &hca_list->hl_port_attr[ii]);
1513 		ibnex_create_vppa_nodes(
1514 		    parent, &hca_list->hl_port_attr[ii]);
1515 	}
1516 	ibdm_ibnex_free_hca_list(hca_list);
1517 	ndi_devi_exit(parent, circ);
1518 
1519 	/*
1520 	 * Use mdi_devi_enter() for locking. IB Nexus is
1521 	 * enumerating MPxIO clients.
1522 	 */
1523 	mdi_devi_enter(parent, &circ);
1524 
1525 	ibnex_pseudo_initnodes();
1526 
1527 	ioc_list = ibnex.ibnex_ioc_list;
1528 
1529 	mutex_enter(&ibnex.ibnex_mutex);
1530 
1531 	while (ioc_list) {
1532 		(void) ibnex_ioc_config_from_pdip(ioc_list, parent, 0);
1533 		ioc_list = ioc_list->ioc_next;
1534 	}
1535 
1536 	/* Config IBTF Pseudo clients */
1537 	ibnex_config_pseudo_all(parent);
1538 
1539 	mutex_exit(&ibnex.ibnex_mutex);
1540 	mdi_devi_exit(parent, circ);
1541 
1542 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: End");
1543 }
1544 
1545 
1546 /*
1547  * ibnex_create_port_nodes:
1548  *	Creates a device node per each communication service defined
1549  *	in the "port-commsvc-list" property per HCA port
1550  */
1551 static void
1552 ibnex_create_port_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1553 {
1554 	int		idx;
1555 	dev_info_t	*dip;
1556 	int		rval;
1557 
1558 	mutex_enter(&ibnex.ibnex_mutex);
1559 	for (idx = 0; idx < ibnex.ibnex_num_comm_svcs; idx++) {
1560 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1561 		    idx, 0, &dip);
1562 		if (rval != IBNEX_SUCCESS) {
1563 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1564 			    IBNEX_PORT_COMMSVC_NODE, 0, &rval,
1565 			    IBNEX_DEVFS_ENUMERATE);
1566 		}
1567 	}
1568 	mutex_exit(&ibnex.ibnex_mutex);
1569 }
1570 
1571 
1572 /*
1573  * ibnex_create_vppa_nodes:
1574  *	Creates a device node per each communication service defined
1575  *	in the "vppa-commsvc-list" property and per each PKEY that
1576  *	this particular port supports and per HCA port
1577  */
1578 static void
1579 ibnex_create_vppa_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1580 {
1581 	int 		idx, ii;
1582 	int		rval;
1583 	ib_pkey_t 	pkey;
1584 	dev_info_t	*dip;
1585 
1586 	IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: Begin");
1587 
1588 	mutex_enter(&ibnex.ibnex_mutex);
1589 	if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1590 		IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: "
1591 		    "Port %d is down", port_attr->pa_port_num);
1592 		mutex_exit(&ibnex.ibnex_mutex);
1593 		return;
1594 	}
1595 	for (idx = 0; idx < ibnex.ibnex_nvppa_comm_svcs; idx++) {
1596 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1597 			pkey = port_attr->pa_pkey_tbl[ii].pt_pkey;
1598 
1599 			if (IBNEX_INVALID_PKEY(pkey)) {
1600 				continue;
1601 			}
1602 			rval = ibnex_get_dip_from_guid(
1603 			    port_attr->pa_port_guid, idx, pkey, &dip);
1604 			if ((rval != IBNEX_SUCCESS) || (dip == NULL)) {
1605 				(void) ibnex_commsvc_initnode(parent, port_attr,
1606 				    idx, IBNEX_VPPA_COMMSVC_NODE,
1607 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1608 				IBTF_DPRINTF_L5("ibnex", "\tcreate_vppa_nodes: "
1609 				    "commsvc_initnode failed rval %x", rval);
1610 			}
1611 		}
1612 	}
1613 	mutex_exit(&ibnex.ibnex_mutex);
1614 }
1615 
1616 
1617 /*
1618  * ibnex_create_hcasvc_nodes:
1619  *	Creates a device node per each communication service defined
1620  *	in the "port-commsvc-list" property per HCA port
1621  */
1622 static void
1623 ibnex_create_hcasvc_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1624 {
1625 	int		idx;
1626 	dev_info_t	*dip;
1627 	int		rval;
1628 
1629 	mutex_enter(&ibnex.ibnex_mutex);
1630 	for (idx = 0; idx < ibnex.ibnex_nhcasvc_comm_svcs; idx++) {
1631 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1632 		    idx, 0, &dip);
1633 		if (rval != IBNEX_SUCCESS) {
1634 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1635 			    IBNEX_HCASVC_COMMSVC_NODE, 0, &rval,
1636 			    IBNEX_DEVFS_ENUMERATE);
1637 			IBTF_DPRINTF_L5("ibnex", "create_hcasvc_nodes: "
1638 			    "commsvc_initnode failed, rval %x", rval);
1639 		}
1640 	}
1641 	mutex_exit(&ibnex.ibnex_mutex);
1642 }
1643 
1644 
1645 /*
1646  * ibnex_bus_unconfig()
1647  *
1648  *	Unconfigure a particular device node or all instance of a device
1649  *	driver device or all children of IBnex
1650  */
1651 static int
1652 ibnex_bus_unconfig(dev_info_t *parent,
1653     uint_t flag, ddi_bus_config_op_t op, void *device_name)
1654 {
1655 	ibnex_node_data_t	*ndp;
1656 	major_t			major = (major_t)(uintptr_t)device_name;
1657 	dev_info_t		*dip = NULL;
1658 
1659 	if (ndi_busop_bus_unconfig(parent, flag, op, device_name) !=
1660 	    DDI_SUCCESS)
1661 		return (DDI_FAILURE);
1662 
1663 	/*
1664 	 * We can come into this routine with dip as ibnexus dip or hca dip.
1665 	 * When the dip is that of ib nexus we need to clean up the IOC and
1666 	 * pseudo nodes. When the dip is that of an HCA (not IB nexus dip)
1667 	 * cleanup the port nodes.
1668 	 */
1669 	if ((op == BUS_UNCONFIG_ALL || op == BUS_UNCONFIG_DRIVER) &&
1670 	    (flag & (NDI_UNCONFIG | NDI_DETACH_DRIVER))) {
1671 		mutex_enter(&ibnex.ibnex_mutex);
1672 		if (parent != ibnex.ibnex_dip) {
1673 			if (major == -1) {
1674 				/*
1675 				 * HCA dip. When major number is -1 HCA is
1676 				 * going away cleanup all the port nodes.
1677 				 */
1678 				for (ndp = ibnex.ibnex_port_node_head;
1679 				    ndp; ndp = ndp->node_next) {
1680 					ibnex_port_node_t	*port_node;
1681 
1682 					port_node = &ndp->node_data.port_node;
1683 					if (port_node->port_pdip == parent) {
1684 						port_node->port_pdip = NULL;
1685 						ndp->node_dip = NULL;
1686 						ndp->node_state =
1687 						    IBNEX_CFGADM_UNCONFIGURED;
1688 					}
1689 				}
1690 			} else {
1691 				/*
1692 				 * HCA dip. Cleanup only the port nodes that
1693 				 * match the major number.
1694 				 */
1695 				for (ndp = ibnex.ibnex_port_node_head;
1696 				    ndp; ndp = ndp->node_next) {
1697 					ibnex_port_node_t	*port_node;
1698 
1699 					port_node = &ndp->node_data.port_node;
1700 					dip = ndp->node_dip;
1701 					if (dip && (ddi_driver_major(dip) ==
1702 					    major) && port_node->port_pdip ==
1703 					    parent) {
1704 						port_node->port_pdip = NULL;
1705 						ndp->node_dip = NULL;
1706 						ndp->node_state =
1707 						    IBNEX_CFGADM_UNCONFIGURED;
1708 					}
1709 				}
1710 			}
1711 		} else {
1712 			/*
1713 			 * IB dip. here we handle IOC and pseudo nodes which
1714 			 * are the children of IB nexus. Cleanup only the nodes
1715 			 * with matching major number. We also need to cleanup
1716 			 * the PathInfo links to the PHCI here.
1717 			 */
1718 			for (ndp = ibnex.ibnex_ioc_node_head;
1719 			    ndp; ndp = ndp->node_next) {
1720 				dip = ndp->node_dip;
1721 				if (dip && (ddi_driver_major(dip) == major)) {
1722 					ibnex_offline_childdip(dip);
1723 				}
1724 			}
1725 			for (ndp = ibnex.ibnex_pseudo_node_head;
1726 			    ndp; ndp = ndp->node_next) {
1727 				dip = ndp->node_dip;
1728 				if (dip && (ddi_driver_major(dip) == major)) {
1729 					ibnex_offline_childdip(dip);
1730 				}
1731 			}
1732 		}
1733 		mutex_exit(&ibnex.ibnex_mutex);
1734 	}
1735 	return (DDI_SUCCESS);
1736 }
1737 
1738 
1739 /*
1740  * ibnex_config_port_node()
1741  *
1742  *	Configures a particular port / HCA  node for a particular
1743  *	communication service.
1744  *	The format of the device_name is
1745  *		ibport@<Port#>,<pkey>,<service name>
1746  *	where pkey = 0 for port communication service nodes
1747  *		  Port# = 0 for HCA_SVC communication service nodes
1748  *	Returns "dev_info_t" of the "child" node just created
1749  *	NULL when failed to enumerate the child node
1750  */
1751 static dev_info_t *
1752 ibnex_config_port_node(dev_info_t *parent, char *devname)
1753 {
1754 	int			ii, index;
1755 	int			rval;
1756 	uint8_t			port_num;
1757 	ib_guid_t		hca_guid, port_guid;
1758 	ib_pkey_t		pkey;
1759 	dev_info_t		*cdip;
1760 	ibdm_port_attr_t	*port_attr;
1761 	ibdm_hca_list_t		*hca_list;
1762 
1763 	IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: %s", devname);
1764 
1765 	if (ibnex_get_pkey_commsvc_index_portnum(devname,
1766 	    &index, &pkey, &port_num) != IBNEX_SUCCESS) {
1767 		IBTF_DPRINTF_L2("ibnex",
1768 		    "\tconfig_port_node: Invalid Service Name");
1769 		return (NULL);
1770 	}
1771 
1772 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1773 	if (port_num == 0) {
1774 		/*
1775 		 * Use the dummy port attribute for HCA node in hca_list
1776 		 * Note : pa_state is always IBT_PORT_ACTIVE.
1777 		 */
1778 		hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1779 		ASSERT(hca_list != NULL);
1780 		port_attr = hca_list->hl_hca_port_attr;
1781 	} else {
1782 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1783 		    hca_guid, port_num)) == NULL) {
1784 			IBTF_DPRINTF_L2("ibnex",
1785 			    "\tconfig_port_node: Port does not exist");
1786 			return (NULL);
1787 		}
1788 
1789 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1790 			ibdm_ibnex_port_settle_wait(
1791 			    hca_guid, ibnex_port_settling_time);
1792 			ibdm_ibnex_free_port_attr(port_attr);
1793 			if ((port_attr = ibdm_ibnex_probe_hcaport(
1794 			    hca_guid, port_num)) == NULL) {
1795 				return (NULL);
1796 			}
1797 		}
1798 	}
1799 
1800 	port_guid = port_attr->pa_port_guid;
1801 	mutex_enter(&ibnex.ibnex_mutex);
1802 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1803 	    &cdip)) == IBNEX_SUCCESS) {
1804 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1805 		mutex_exit(&ibnex.ibnex_mutex);
1806 		if (port_num != 0)
1807 			ibdm_ibnex_free_port_attr(port_attr);
1808 		else
1809 			ibdm_ibnex_free_hca_list(hca_list);
1810 		return (cdip);
1811 	}
1812 
1813 	if (pkey == 0 && port_num != 0) {
1814 		cdip = ibnex_commsvc_initnode(parent,
1815 		    port_attr, index, IBNEX_PORT_COMMSVC_NODE, pkey, &rval,
1816 		    IBNEX_DEVFS_ENUMERATE);
1817 		IBTF_DPRINTF_L5("ibnex",
1818 		    "\t ibnex_commsvc_initnode rval %x", rval);
1819 	} else if (pkey == 0 && port_num == 0) {
1820 		cdip = ibnex_commsvc_initnode(parent,
1821 		    port_attr, index, IBNEX_HCASVC_COMMSVC_NODE, pkey, &rval,
1822 		    IBNEX_DEVFS_ENUMERATE);
1823 		IBTF_DPRINTF_L5("ibnex",
1824 		    "\t ibnex_commsvc_initnode rval %x", rval);
1825 	} else {
1826 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1827 			IBTF_DPRINTF_L4("ibnex", "\tconfig_port_nodes: "
1828 			    "Port %d is down", port_attr->pa_port_num);
1829 			ibdm_ibnex_free_port_attr(port_attr);
1830 			mutex_exit(&ibnex.ibnex_mutex);
1831 			return (NULL);
1832 		}
1833 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1834 			if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1835 				cdip = ibnex_commsvc_initnode(parent, port_attr,
1836 				    index, IBNEX_VPPA_COMMSVC_NODE,
1837 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1838 				IBTF_DPRINTF_L5("ibnex",
1839 				    "\t ibnex_commsvc_initnode rval %x", rval);
1840 				break;
1841 			}
1842 		}
1843 	}
1844 	mutex_exit(&ibnex.ibnex_mutex);
1845 	if (port_num != 0)
1846 		ibdm_ibnex_free_port_attr(port_attr);
1847 	else
1848 		ibdm_ibnex_free_hca_list(hca_list);
1849 	return (cdip);
1850 }
1851 
1852 
1853 /*
1854  * ibnex_config_obp_args()
1855  *	Configures a particular port node for a IP over IB communication
1856  *	service.
1857  *	The format of the input string "devname" is
1858  *		port=x,pkey=y,protocol=ip,<wanboot options>
1859  *	Thr format of the node name created here is
1860  *		ibport@<Port#>,<pkey>,<service name>
1861  *	where pkey = 0 for port communication service nodes
1862  *	Returns "dev_info_t" of the "child" node just created
1863  *	NULL when failed to enumerate the child node
1864  *
1865  */
1866 static dev_info_t *
1867 ibnex_config_obp_args(dev_info_t *parent, char *devname)
1868 {
1869 	int			ii, index;
1870 	int			rval, iter = 0;
1871 	char			*temp;
1872 	uint8_t			port_num;
1873 	ib_guid_t		hca_guid, port_guid;
1874 	ib_pkey_t		pkey;
1875 	dev_info_t		*cdip;
1876 	boolean_t		displayed = B_FALSE;
1877 	ibdm_port_attr_t	*port_attr;
1878 
1879 	IBTF_DPRINTF_L4("ibnex", "\tconfig_obp_args: %s", devname);
1880 
1881 	/* Is this OBP node for IPoIB ? */
1882 	temp = devname;
1883 	do {
1884 		temp = strstr(temp, ",protocol=ip");
1885 		if (temp == NULL)
1886 			break;
1887 
1888 		if (strlen(devname) > (int)((temp - devname) + 12)) {
1889 			if (temp[12] == ',')
1890 				break;
1891 		} else {
1892 			break;
1893 		}
1894 		temp++;
1895 	} while (temp);
1896 
1897 	if (temp == NULL)
1898 		return (NULL);
1899 	if (ibnex_prom_devname_to_pkey_n_portnum(
1900 	    devname, &pkey, &port_num) != IBNEX_SUCCESS) {
1901 		return (NULL);
1902 	}
1903 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
1904 		if (strcmp(ibnex.ibnex_vppa_comm_svc_names[index],
1905 		    "ipib") == 0) {
1906 			break;
1907 		}
1908 	}
1909 
1910 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1911 	if ((port_attr = ibdm_ibnex_probe_hcaport(
1912 	    hca_guid, port_num)) == NULL) {
1913 		IBTF_DPRINTF_L2("ibnex",
1914 		    "\tconfig_port_node: Port does not exist");
1915 		return (NULL);
1916 	}
1917 
1918 	/* Wait until "port is up" */
1919 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1920 		ibdm_ibnex_free_port_attr(port_attr);
1921 		delay(drv_usectohz(10000));
1922 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1923 		    hca_guid, port_num)) == NULL) {
1924 			return (NULL);
1925 		}
1926 		if (iter++ == 400) {
1927 			if (displayed == B_FALSE) {
1928 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1929 				    "initialization", port_attr->pa_port_num);
1930 				displayed = B_TRUE;
1931 			}
1932 		}
1933 	}
1934 	IBTF_DPRINTF_L4("ibnex", "\tPort is initialized");
1935 
1936 	mutex_enter(&ibnex.ibnex_mutex);
1937 	port_guid = port_attr->pa_port_guid;
1938 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1939 	    &cdip)) == IBNEX_SUCCESS) {
1940 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1941 		mutex_exit(&ibnex.ibnex_mutex);
1942 		ibdm_ibnex_free_port_attr(port_attr);
1943 		return (cdip);
1944 	}
1945 	for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1946 		if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1947 			cdip = ibnex_commsvc_initnode(parent, port_attr,
1948 			    index, IBNEX_VPPA_COMMSVC_NODE, pkey, &rval,
1949 			    IBNEX_CFGADM_ENUMERATE);
1950 			IBTF_DPRINTF_L5("ibnex",
1951 			    "\t ibnex_commsvc_initnode rval %x", rval);
1952 			break;
1953 		}
1954 	}
1955 	mutex_exit(&ibnex.ibnex_mutex);
1956 
1957 	ibdm_ibnex_free_port_attr(port_attr);
1958 	return (cdip);
1959 }
1960 
1961 
1962 /*
1963  * ibnex_prom_devname_to_pkey_n_portnum()
1964  *	Parses the device node name and extracts "PKEY" and "port#"
1965  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1966  */
1967 static int
1968 ibnex_prom_devname_to_pkey_n_portnum(
1969     char *devname, ib_pkey_t *pkey, uint8_t *port)
1970 {
1971 	int	ret = IBNEX_SUCCESS;
1972 	char	*tmp, *tmp1;
1973 
1974 	if ((tmp = strstr(devname, "port=")) != NULL) {
1975 		if ((tmp = strchr(++tmp, '=')) != NULL)
1976 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
1977 				*port = ibnex_str2int(tmp, (tmp1 - tmp), &ret);
1978 	} else
1979 		ret = IBNEX_FAILURE;
1980 
1981 	if ((ret == IBNEX_SUCCESS) &&
1982 	    (tmp = strstr(devname, "pkey=")) != NULL) {
1983 		if ((tmp = strchr(++tmp, '=')) != NULL)
1984 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
1985 				*pkey = ibnex_str2hex(tmp, (tmp1 - tmp), &ret);
1986 	} else
1987 		ret = IBNEX_FAILURE;
1988 
1989 	return (ret);
1990 }
1991 
1992 
1993 /*
1994  * ibnex_get_pkey_commsvc_index_portnum()
1995  *	Parses the device node name and extracts PKEY, communication
1996  *	service index & Port #.
1997  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1998  */
1999 static int
2000 ibnex_get_pkey_commsvc_index_portnum(char *device_name, int *index,
2001     ib_pkey_t *pkey, uint8_t *port_num)
2002 {
2003 	char 	*srv, **service_name, *temp;
2004 	int  	ii, ncommsvcs, ret;
2005 
2006 	if (ibnex_devname_to_portnum(device_name, port_num) !=
2007 	    IBNEX_SUCCESS) {
2008 		IBTF_DPRINTF_L2("ibnex",
2009 		    "\tget_pkey_commsvc_index_portnum: Invalid PortGuid");
2010 		return (NULL);
2011 	}
2012 	srv = strchr(device_name, ',');
2013 	if (srv == 0)
2014 		return (IBNEX_FAILURE);
2015 
2016 	srv++;
2017 	temp = strchr(srv, ',');
2018 	if (temp == 0)
2019 		return (IBNEX_FAILURE);
2020 	temp++;
2021 	*pkey = ibnex_str2hex(srv, (temp - srv - 1), &ret);
2022 	if (ret != IBNEX_SUCCESS)
2023 		return (ret);
2024 
2025 	if (*pkey == 0 && *port_num != 0) {
2026 		service_name = ibnex.ibnex_comm_svc_names;
2027 		ncommsvcs = ibnex.ibnex_num_comm_svcs;
2028 	} else if (*pkey == 0 && *port_num == 0) {
2029 		service_name = ibnex.ibnex_hcasvc_comm_svc_names;
2030 		ncommsvcs = ibnex.ibnex_nhcasvc_comm_svcs;
2031 	} else {
2032 		service_name = ibnex.ibnex_vppa_comm_svc_names;
2033 		ncommsvcs = ibnex.ibnex_nvppa_comm_svcs;
2034 	}
2035 
2036 	for (ii = 0; ii < ncommsvcs; ii++) {
2037 		if (strcmp(service_name[ii], temp) == 0) {
2038 			break;
2039 		}
2040 	}
2041 	if (ii == ncommsvcs)
2042 		return (IBNEX_FAILURE);
2043 
2044 	*index = ii;
2045 	return (IBNEX_SUCCESS);
2046 }
2047 
2048 
2049 /*
2050  * ibnex_devname_to_portnum()
2051  *	Get portguid from device name
2052  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2053  */
2054 static int
2055 ibnex_devname_to_portnum(char *device_name, uint8_t *portnum)
2056 {
2057 	int	ret;
2058 	char	*temp1, *temp2;
2059 
2060 	temp1 = strchr(device_name, '@');
2061 	if (temp1 == NULL) {
2062 		return (IBNEX_FAILURE);
2063 	}
2064 	temp2 = strchr(temp1, ',');
2065 	if (temp2 == NULL)
2066 		return (IBNEX_FAILURE);
2067 	temp1++;
2068 	*portnum = ibnex_str2hex(temp1, (temp2 - temp1), &ret);
2069 	return (ret);
2070 }
2071 
2072 
2073 /*
2074  * ibnex_config_ioc_node()
2075  *	Configures one particular instance of the IOC driver.
2076  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2077  */
2078 static int
2079 ibnex_config_ioc_node(char *device_name, dev_info_t *pdip)
2080 {
2081 	int			ret;
2082 	ib_guid_t		iou_guid, ioc_guid;
2083 	ibdm_ioc_info_t		*ioc_info;
2084 
2085 	IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: Begin");
2086 
2087 	if (ibnex_devname_to_node_n_ioc_guids(
2088 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
2089 		return (IBNEX_FAILURE);
2090 	}
2091 
2092 	ibdm_ibnex_port_settle_wait(0, ibnex_port_settling_time);
2093 
2094 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) ==
2095 	    NULL) {
2096 		ibdm_ibnex_free_ioc_list(ioc_info);
2097 		return (IBNEX_FAILURE);
2098 	}
2099 	mutex_enter(&ibnex.ibnex_mutex);
2100 	ret = ibnex_ioc_config_from_pdip(ioc_info, pdip, 0);
2101 	mutex_exit(&ibnex.ibnex_mutex);
2102 	ibdm_ibnex_free_ioc_list(ioc_info);
2103 	IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: ret %x",
2104 	    ret);
2105 	return (ret);
2106 }
2107 
2108 
2109 /*
2110  * ibnex_devname_to_node_n_ioc_guids()
2111  *	Get node guid and ioc guid from the device name
2112  *	Format of the device node name is:
2113  *		ioc@<IOC GUID>,<IOU GUID>
2114  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2115  */
2116 static int
2117 ibnex_devname_to_node_n_ioc_guids(
2118     char *device_name, ib_guid_t *iou_guid, ib_guid_t *ioc_guid,
2119     char **ioc_guid_strp)
2120 {
2121 	char	*temp1, *temp;
2122 	int	len, ret;
2123 	char	*ioc_guid_str;
2124 
2125 	IBTF_DPRINTF_L4("ibnex", "\tdevname_to_node_n_ioc_guids:"
2126 	    "Device Name %s", device_name);
2127 
2128 	if ((temp = strchr(device_name, '@')) == NULL) {
2129 		return (IBNEX_FAILURE);
2130 	}
2131 	if ((temp1 = strchr(++temp, ',')) == NULL) {
2132 		return (IBNEX_FAILURE);
2133 	}
2134 	*ioc_guid = ibnex_str2hex(temp, (temp1 - temp), &ret);
2135 	if (ret == IBNEX_SUCCESS) {
2136 		if (ioc_guid_strp) {
2137 			ioc_guid_str = *ioc_guid_strp = kmem_zalloc((temp1
2138 			    - temp) + 1, KM_SLEEP);
2139 			(void) strncpy(ioc_guid_str, temp, temp1 - temp + 1);
2140 			ioc_guid_str[temp1 - temp] = '\0';
2141 		}
2142 		len = device_name + strlen(device_name) - ++temp1;
2143 		*iou_guid = ibnex_str2hex(temp1, len, &ret);
2144 	}
2145 	return (ret);
2146 }
2147 
2148 
2149 /*
2150  * ibnex_ioc_initnode()
2151  *	Allocate a pathinfo node for the IOC
2152  *	Initialize the device node
2153  *	Bind driver to the node
2154  *	Update IBnex global data
2155  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY
2156  */
2157 static int
2158 ibnex_ioc_initnode_pdip(ibnex_node_data_t *node_data,
2159     ibdm_ioc_info_t *ioc_info, dev_info_t *pdip)
2160 {
2161 	int			rval, node_valid;
2162 	ibnex_node_state_t	prev_state;
2163 
2164 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2165 	ASSERT(node_data);
2166 
2167 
2168 	/*
2169 	 * Return EBUSY if another configure/unconfigure
2170 	 * operation is in progress
2171 	 */
2172 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2173 		IBTF_DPRINTF_L4("ibnex",
2174 		    "\tioc_initnode_pdip : BUSY");
2175 		return (IBNEX_BUSY);
2176 	}
2177 
2178 	prev_state = node_data->node_state;
2179 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2180 	mutex_exit(&ibnex.ibnex_mutex);
2181 
2182 	rval = ibnex_ioc_create_pi(ioc_info, node_data, pdip, &node_valid);
2183 
2184 	mutex_enter(&ibnex.ibnex_mutex);
2185 	if (rval == IBNEX_SUCCESS)
2186 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2187 	else if (node_valid)
2188 		node_data->node_state = prev_state;
2189 
2190 	return (rval);
2191 }
2192 
2193 /*
2194  * ibnex_config_pseudo_all()
2195  *	Configure all the pseudo nodes
2196  */
2197 static void
2198 ibnex_config_pseudo_all(dev_info_t *pdip)
2199 {
2200 	ibnex_node_data_t	*nodep;
2201 
2202 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2203 
2204 	for (nodep = ibnex.ibnex_pseudo_node_head;
2205 	    nodep; nodep = nodep->node_next) {
2206 		(void) ibnex_pseudo_config_one(nodep, NULL, pdip);
2207 	}
2208 }
2209 
2210 
2211 /*
2212  * ibnex_pseudo_config_one()
2213  */
2214 static int
2215 ibnex_pseudo_config_one(ibnex_node_data_t *node_data, char *caddr,
2216     dev_info_t *pdip)
2217 {
2218 	int			rval;
2219 	ibnex_pseudo_node_t	*pseudo;
2220 	ibnex_node_state_t	prev_state;
2221 
2222 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one(%p, %p, %p)",
2223 	    node_data, caddr, pdip);
2224 
2225 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2226 
2227 	if (node_data == NULL) {
2228 		IBTF_DPRINTF_L4("ibnex",
2229 		    "\tpseudo_config_one: caddr = %s", caddr);
2230 
2231 		/*
2232 		 * This function is now called with PHCI / HCA driver
2233 		 * as parent. The format of devicename is :
2234 		 * 	<driver_name>@<driver_name>,<unit_address>
2235 		 * The "caddr" part of the devicename matches the
2236 		 * format of pseudo_node_addr.
2237 		 *
2238 		 * Use "caddr" to find a matching Pseudo node entry.
2239 		 */
2240 		node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2241 		    (void *)caddr, 0, 0);
2242 	}
2243 
2244 	if (node_data == NULL) {
2245 		IBTF_DPRINTF_L2("ibnex",
2246 		    "\tpseudo_config_one: Invalid node");
2247 		return (IBNEX_FAILURE);
2248 	}
2249 
2250 	if (node_data->node_ap_state == IBNEX_NODE_AP_UNCONFIGURED) {
2251 		IBTF_DPRINTF_L4("ibnex",
2252 		    "\tpseudo_config_one: Unconfigured node");
2253 		return (IBNEX_FAILURE);
2254 	}
2255 
2256 	pseudo = &node_data->node_data.pseudo_node;
2257 
2258 	/*
2259 	 * Do not enumerate nodes with ib-node-type set as "merge"
2260 	 */
2261 	if (pseudo->pseudo_merge_node == 1) {
2262 		IBTF_DPRINTF_L4("ibnex",
2263 		    "\tpseudo_config_one: merge_node");
2264 		return (IBNEX_FAILURE);
2265 	}
2266 
2267 	/*
2268 	 * Check if a PI has already been created for the PDIP.
2269 	 * If so, return SUCCESS.
2270 	 */
2271 	if (node_data->node_dip != NULL && mdi_pi_find(pdip,
2272 	    pseudo->pseudo_node_addr, pseudo->pseudo_node_addr) != NULL) {
2273 		IBTF_DPRINTF_L4("ibnex",
2274 		    "\tpseudo_config_one: PI created,"
2275 		    " pdip %p, addr %s", pdip, pseudo->pseudo_node_addr);
2276 		return (IBNEX_SUCCESS);
2277 	}
2278 
2279 	/*
2280 	 * Return EBUSY if another unconfigure
2281 	 * operation is in progress
2282 	 */
2283 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2284 		IBTF_DPRINTF_L4("ibnex",
2285 		    "\tpseudo_config_one: BUSY");
2286 		return (IBNEX_BUSY);
2287 	}
2288 
2289 
2290 	prev_state = node_data->node_state;
2291 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2292 
2293 	mutex_exit(&ibnex.ibnex_mutex);
2294 	rval = ibnex_pseudo_create_pi_pdip(node_data, pdip);
2295 	mutex_enter(&ibnex.ibnex_mutex);
2296 
2297 	if (rval == IBNEX_SUCCESS) {
2298 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2299 	} else {
2300 		node_data->node_state = prev_state;
2301 	}
2302 
2303 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one: ret %x",
2304 	    rval);
2305 	return (rval);
2306 }
2307 
2308 
2309 /*
2310  * ibnex_pseudo_mdi_config_one()
2311  *	This is similar to ibnex_pseudo_config_one. Few
2312  *	differences :
2313  *	1. parent device lock not held(no ndi_devi_enter)
2314  *	2. Called for IB Nexus as parent, not IB HCA as
2315  *	   parent.
2316  *	3. Calls mdi_vhci_bus_config()
2317  * This function skips checks for node_state, initializing
2318  * node_state, node_dip, etc. These checks and initializations
2319  * are done when BUS_CONFIG is called with PHCI as the parent.
2320  */
2321 static int
2322 ibnex_pseudo_mdi_config_one(int flag, void *devname, dev_info_t **child,
2323     char *cname, char *caddr)
2324 {
2325 	int			rval, len;
2326 	char			*node_addr;
2327 	ibnex_node_data_t	*node_data;
2328 
2329 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_mdi_config_one:"
2330 	    "cname = %s caddr = %s", cname, caddr);
2331 
2332 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2333 
2334 	len = strlen(cname) + strlen(caddr) + 2;
2335 	node_addr = (char *)kmem_alloc(len, KM_SLEEP);
2336 
2337 	(void) snprintf(node_addr, len, "%s,%s", cname, caddr);
2338 	node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2339 	    (void *)node_addr, 0, 0);
2340 	kmem_free(node_addr, len);
2341 
2342 	if (node_data == NULL) {
2343 		IBTF_DPRINTF_L2("ibnex",
2344 		    "\tpseudo_mdi_config_one: Invalid node");
2345 		return (IBNEX_FAILURE);
2346 	}
2347 
2348 	mutex_exit(&ibnex.ibnex_mutex);
2349 	rval = mdi_vhci_bus_config(ibnex.ibnex_dip, flag, BUS_CONFIG_ONE,
2350 	    devname, child, node_data->node_data.pseudo_node.pseudo_node_addr);
2351 	mutex_enter(&ibnex.ibnex_mutex);
2352 
2353 	return (rval);
2354 }
2355 
2356 
2357 /*
2358  * ibnex_pseudo_create_all_pi()
2359  *	Create all path infos node for a pseudo entry
2360  */
2361 int
2362 ibnex_pseudo_create_all_pi(ibnex_node_data_t *nodep)
2363 {
2364 	int		hcacnt, rc;
2365 	int		hcafailcnt = 0;
2366 	dev_info_t	*hca_dip;
2367 	ibdm_hca_list_t	*hca_list, *head;
2368 
2369 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_all_pi(%p)",
2370 	    nodep);
2371 	ibdm_ibnex_get_hca_list(&hca_list, &hcacnt);
2372 
2373 	head = hca_list;
2374 
2375 	/*
2376 	 * We return failure even if we fail for all HCAs.
2377 	 */
2378 	for (; hca_list != NULL; hca_list = hca_list->hl_next) {
2379 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
2380 		rc = ibnex_pseudo_create_pi_pdip(nodep, hca_dip);
2381 		if (rc != IBNEX_SUCCESS)
2382 			hcafailcnt++;
2383 	}
2384 	if (head)
2385 		ibdm_ibnex_free_hca_list(head);
2386 
2387 	if (hcafailcnt == hcacnt)
2388 		rc = IBNEX_FAILURE;
2389 	else
2390 		rc = IBNEX_SUCCESS;
2391 
2392 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_all_pi rc %x",
2393 	    rc);
2394 	return (rc);
2395 }
2396 
2397 static int
2398 ibnex_pseudo_create_pi_pdip(ibnex_node_data_t *nodep, dev_info_t *hca_dip)
2399 {
2400 	mdi_pathinfo_t		*pip;
2401 	int			rval;
2402 	dev_info_t		*cdip = NULL;
2403 	ibnex_pseudo_node_t	*pseudo;
2404 	int			first_pi = 0;
2405 
2406 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_pi_pdip: %p, %p",
2407 	    nodep, hca_dip);
2408 
2409 	pseudo = &nodep->node_data.pseudo_node;
2410 
2411 	rval = mdi_pi_alloc(hca_dip,
2412 	    pseudo->pseudo_devi_name, pseudo->pseudo_node_addr,
2413 	    pseudo->pseudo_node_addr, 0, &pip);
2414 
2415 	if (rval != MDI_SUCCESS) {
2416 		IBTF_DPRINTF_L2("ibnex", "\tpseudo_create_pi_pdip:"
2417 		    " mdi_pi_alloc failed");
2418 		return (IBNEX_FAILURE);
2419 	}
2420 	cdip = mdi_pi_get_client(pip);
2421 
2422 	if (nodep->node_dip == NULL) {
2423 		IBTF_DPRINTF_L4("ibnex",
2424 		    "\tpseudo_create_pi: New dip %p", cdip);
2425 
2426 		first_pi = 1;
2427 		nodep->node_dip = cdip;
2428 		ddi_set_parent_data(cdip, nodep);
2429 	}
2430 
2431 	rval = mdi_pi_online(pip, 0);
2432 
2433 	if (rval != MDI_SUCCESS) {
2434 		IBTF_DPRINTF_L2("ibnex",
2435 		    "\tpseudo_create_pi: "
2436 		    "mdi_pi_online: failed for pseudo dip %p,"
2437 		    " rval %d", cdip, rval);
2438 		rval = IBNEX_FAILURE;
2439 		if (first_pi == 1) {
2440 			ddi_set_parent_data(cdip, NULL);
2441 			(void) ibnex_offline_childdip(cdip);
2442 			nodep->node_dip = NULL;
2443 		} else
2444 			(void) mdi_pi_free(pip, 0);
2445 	} else
2446 		rval = IBNEX_SUCCESS;
2447 	return (rval);
2448 }
2449 
2450 /*
2451  * ibnex_ioc_create_pi()
2452  *	Create a pathinfo node for the ioc node
2453  */
2454 static int
2455 ibnex_ioc_create_pi(ibdm_ioc_info_t *ioc_info, ibnex_node_data_t *node_data,
2456     dev_info_t *pdip, int *node_valid)
2457 {
2458 	mdi_pathinfo_t		*pip;
2459 	int			rval = DDI_FAILURE;
2460 	dev_info_t		*cdip = NULL;
2461 	int			create_prop = 0;
2462 	ibnex_ioc_node_t	*ioc = &node_data->node_data.ioc_node;
2463 
2464 	IBTF_DPRINTF_L4("ibnex",
2465 	    "\tibnex_ioc_create_pi(%p, %p, %p)", ioc_info, node_data, pdip);
2466 	*node_valid = 1;
2467 
2468 	/*
2469 	 * For CONFIG_ONE requests through HCA dip, alloc
2470 	 * for HCA dip driving BUS_CONFIG request.
2471 	 */
2472 	rval =  mdi_pi_alloc(pdip, IBNEX_IOC_CNAME, ioc->ioc_guid_str,
2473 	    ioc->ioc_phci_guid, 0, &pip);
2474 	if (rval != MDI_SUCCESS) {
2475 		IBTF_DPRINTF_L2("ibnex",
2476 		    "\tioc_create_pi: mdi_pi_alloc(%p, %s. %s) failed",
2477 		    pdip, ioc->ioc_guid_str, ioc->ioc_phci_guid);
2478 		return (IBNEX_FAILURE);
2479 	}
2480 	cdip = mdi_pi_get_client(pip);
2481 
2482 	IBTF_DPRINTF_L4("ibnex", "\tioc_create_pi: IOC dip %p",
2483 	    cdip);
2484 
2485 	if (node_data->node_dip == NULL) {
2486 		node_data->node_dip = cdip;
2487 		ddi_set_parent_data(cdip, node_data);
2488 		create_prop = 1;
2489 		IBTF_DPRINTF_L4("ibnex",
2490 		    "\tioc_create_pi: creating prop");
2491 		if ((rval = ibnex_create_ioc_node_prop(
2492 		    ioc_info, cdip)) != IBNEX_SUCCESS) {
2493 			IBTF_DPRINTF_L4("ibnex",
2494 			    "\tioc_create_pi: creating prop failed");
2495 			ibnex_delete_ioc_node_data(node_data);
2496 			*node_valid = 0;
2497 			ddi_prop_remove_all(cdip);
2498 			ddi_set_parent_data(cdip, NULL);
2499 
2500 			(void) ibnex_offline_childdip(cdip);
2501 			return (IBNEX_FAILURE);
2502 		}
2503 	}
2504 
2505 	rval = mdi_pi_online(pip, 0);
2506 
2507 	if (rval != MDI_SUCCESS) {
2508 		IBTF_DPRINTF_L2("ibnex", "\tioc_create_pi: "
2509 		    "mdi_pi_online() failed ioc dip %p, rval %d",
2510 		    cdip, rval);
2511 		rval = IBNEX_FAILURE;
2512 		if (create_prop) {
2513 			ddi_set_parent_data(cdip, NULL);
2514 			ddi_prop_remove_all(cdip);
2515 			ibnex_delete_ioc_node_data(node_data);
2516 			*node_valid = 0;
2517 			(void) ibnex_offline_childdip(cdip);
2518 		} else
2519 			(void) mdi_pi_free(pip, 0);
2520 	} else
2521 		rval = IBNEX_SUCCESS;
2522 
2523 	IBTF_DPRINTF_L4("ibnex", "\tioc_create_pi ret %x", rval);
2524 	return (rval);
2525 }
2526 
2527 
2528 /*
2529  * ibnex_create_ioc_node_prop()
2530  *	Create IOC device node properties
2531  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2532  */
2533 static int
2534 ibnex_create_ioc_node_prop(ibdm_ioc_info_t *ioc_info, dev_info_t *cdip)
2535 {
2536 	uint16_t		 capabilities;
2537 	ib_dm_ioc_ctrl_profile_t *ioc_profile = &ioc_info->ioc_profile;
2538 
2539 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_node_prop");
2540 
2541 	if (ibnex_create_ioc_compatible_prop(cdip,
2542 	    ioc_profile) != IBNEX_SUCCESS) {
2543 		return (IBNEX_FAILURE);
2544 	}
2545 	if ((ioc_info->ioc_iou_dc_valid) &&
2546 	    (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "iou-diagcode",
2547 	    ioc_info->ioc_iou_diagcode)) != DDI_PROP_SUCCESS) {
2548 		IBTF_DPRINTF_L2("ibnex",
2549 		    "\tcreate_ioc_node_prop: iou-diagcode create failed");
2550 		return (IBNEX_FAILURE);
2551 	}
2552 	if ((ioc_info->ioc_diagdeviceid) && (ioc_info->ioc_dc_valid)) {
2553 		if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "ioc-diagcode",
2554 		    ioc_info->ioc_diagcode) != DDI_PROP_SUCCESS) {
2555 			IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2556 			    "ioc-diagcode create failed");
2557 			return (IBNEX_FAILURE);
2558 		}
2559 	}
2560 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-queue-depth",
2561 	    ioc_profile->ioc_rdma_read_qdepth) != DDI_PROP_SUCCESS) {
2562 		IBTF_DPRINTF_L2("ibnex",
2563 		    "\tcreate_ioc_node_prop: rdma-queue-depth create failed");
2564 		return (IBNEX_FAILURE);
2565 	}
2566 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-transfer-size",
2567 	    ioc_profile->ioc_rdma_xfer_sz) != DDI_PROP_SUCCESS) {
2568 		IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2569 		    "rdma-transfer-size create failed");
2570 		return (IBNEX_FAILURE);
2571 	}
2572 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-message-size",
2573 	    ioc_profile->ioc_send_msg_sz) != DDI_PROP_SUCCESS) {
2574 		IBTF_DPRINTF_L2("ibnex",
2575 		    "\tcreate_ioc_node_prop: send-message-size create failed");
2576 		return (IBNEX_FAILURE);
2577 	}
2578 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-queue-depth",
2579 	    ioc_profile->ioc_send_msg_qdepth) != DDI_PROP_SUCCESS) {
2580 		IBTF_DPRINTF_L2("ibnex",
2581 		    "\tcreate_ioc_node_prop: send-queue-depth create failed");
2582 		return (IBNEX_FAILURE);
2583 	}
2584 
2585 	capabilities = (ioc_profile->ioc_ctrl_opcap_mask << 8);
2586 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip,
2587 	    "capabilities", capabilities) != DDI_PROP_SUCCESS) {
2588 		IBTF_DPRINTF_L2("ibnex",
2589 		    "\tcreate_ioc_node_prop: capabilities create failed");
2590 		return (IBNEX_FAILURE);
2591 	}
2592 	if (ndi_prop_update_string(DDI_DEV_T_NONE, cdip, "id-string",
2593 	    (char *)ioc_profile->ioc_id_string) != DDI_PROP_SUCCESS) {
2594 		IBTF_DPRINTF_L2("ibnex",
2595 		    "\tcreate_ioc_node_prop: id-string failed");
2596 		return (IBNEX_FAILURE);
2597 	}
2598 
2599 	/*
2600 	 * Create properties to represent all the service entries supported
2601 	 * by the IOC. Each service entry consists of 1) Service ID (64 bits)
2602 	 * and 2) Service name (40 bytes). The service entry table is
2603 	 * represented by two properties, service-ids and service-names. The
2604 	 * service-id property is a array of int64's and service names is
2605 	 * array of strings. The first element in the "service-ids" property
2606 	 * corresponds to first string in the "service-names" and so on.
2607 	 */
2608 	if ((ioc_profile->ioc_service_entries != 0) &&
2609 	    (ibnex_create_ioc_srv_props(cdip, ioc_info) != IBNEX_SUCCESS))
2610 		return (IBNEX_FAILURE);
2611 
2612 	/* Create destination port GID properties */
2613 	if (ibnex_create_ioc_portgid_prop(cdip, ioc_info) != IBNEX_SUCCESS)
2614 		return (IBNEX_FAILURE);
2615 
2616 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol-version",
2617 	    ioc_profile->ioc_protocol_ver) != DDI_PROP_SUCCESS) {
2618 		IBTF_DPRINTF_L2("ibnex",
2619 		    "\tcreate_ioc_node_prop: protocol-version create failed");
2620 		return (IBNEX_FAILURE);
2621 	}
2622 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol",
2623 	    ioc_profile->ioc_protocol) != DDI_PROP_SUCCESS) {
2624 		IBTF_DPRINTF_L2("ibnex",
2625 		    "\tcreate_ioc_node_prop: protocol create failed");
2626 		return (IBNEX_FAILURE);
2627 	}
2628 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-subclass",
2629 	    ioc_profile->ioc_io_subclass) != DDI_PROP_SUCCESS) {
2630 		IBTF_DPRINTF_L2("ibnex",
2631 		    "\tcreate_ioc_node_prop: subclass create failed");
2632 		return (IBNEX_FAILURE);
2633 	}
2634 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-class",
2635 	    ioc_profile->ioc_io_class) != DDI_PROP_SUCCESS) {
2636 		IBTF_DPRINTF_L2("ibnex",
2637 		    "\tcreate_ioc_node_prop: class prop create failed");
2638 		return (IBNEX_FAILURE);
2639 	}
2640 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-id",
2641 	    ioc_profile->ioc_subsys_id) != DDI_PROP_SUCCESS) {
2642 		IBTF_DPRINTF_L2("ibnex",
2643 		    "\tcreate_ioc_node_prop: subsys_id create failed");
2644 		return (IBNEX_FAILURE);
2645 	}
2646 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-vendor-id",
2647 	    ioc_profile->ioc_subsys_vendorid) != DDI_PROP_SUCCESS) {
2648 		IBTF_DPRINTF_L2("ibnex",
2649 		    "\tcreate_ioc_node_prop: subsystem vendor create failed");
2650 		return (IBNEX_FAILURE);
2651 	}
2652 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, cdip, "ioc-guid",
2653 	    ioc_profile->ioc_guid) != DDI_PROP_SUCCESS) {
2654 		IBTF_DPRINTF_L2("ibnex",
2655 		    "\tcreate_ioc_node_prop: protocol create failed");
2656 		return (IBNEX_FAILURE);
2657 	}
2658 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-version",
2659 	    ioc_profile->ioc_device_ver) != DDI_PROP_SUCCESS) {
2660 		IBTF_DPRINTF_L2("ibnex",
2661 		    "\tcreate_ioc_node_prop: product-id create failed");
2662 		return (IBNEX_FAILURE);
2663 	}
2664 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-id",
2665 	    ioc_profile->ioc_deviceid) != DDI_PROP_SUCCESS) {
2666 		IBTF_DPRINTF_L2("ibnex",
2667 		    "\tcreate_ioc_node_prop: product-id create failed");
2668 		return (IBNEX_FAILURE);
2669 	}
2670 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "vendor-id",
2671 	    ioc_profile->ioc_vendorid) != DDI_PROP_SUCCESS) {
2672 		IBTF_DPRINTF_L2("ibnex",
2673 		    "\tcreate_ioc_node_prop: vendor-id create failed");
2674 		return (IBNEX_FAILURE);
2675 	}
2676 	return (IBNEX_SUCCESS);
2677 }
2678 
2679 
2680 /*
2681  * ibnex_create_ioc_portgid_prop()
2682  *	Creates "port-entries", "port-list" properties
2683  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2684  */
2685 static int
2686 ibnex_create_ioc_portgid_prop(
2687     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2688 {
2689 	uint64_t	*port_gids;
2690 	int		length, ii, jj;
2691 	int		prop_len;
2692 	ibnex_node_data_t *node_data;
2693 
2694 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_portgid_prop");
2695 
2696 	node_data = ddi_get_parent_data(cdip);
2697 	ASSERT(node_data);
2698 
2699 	prop_len = (ioc_info->ioc_nportgids != 0) ?
2700 	    (2 * ioc_info->ioc_nportgids) : 1;
2701 	length = sizeof (uint64_t) * prop_len;
2702 	port_gids = kmem_zalloc(length, KM_SLEEP);
2703 
2704 	for (ii = 0, jj = 0; ii < ioc_info->ioc_nportgids; ii++) {
2705 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_hi;
2706 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_lo;
2707 	}
2708 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip, "port-list",
2709 	    (int64_t *)port_gids, prop_len) != DDI_PROP_SUCCESS) {
2710 		IBTF_DPRINTF_L2("ibnex",
2711 		    "\tcreate_ioc_portgid_prop: port-list create failed");
2712 		kmem_free(port_gids, length);
2713 		return (IBNEX_FAILURE);
2714 	}
2715 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "port-entries",
2716 	    ioc_info->ioc_nportgids) != DDI_PROP_SUCCESS) {
2717 		IBTF_DPRINTF_L2("ibnex",
2718 		    "\tcreate_ioc_portgid_prop: port-entries create failed");
2719 		kmem_free(port_gids, length);
2720 		return (IBNEX_FAILURE);
2721 	}
2722 
2723 	kmem_free(port_gids, length);
2724 	return (IBNEX_SUCCESS);
2725 }
2726 
2727 
2728 /*
2729  * ibnex_create_ioc_srv_props()
2730  *	Creates "service-name" and "service-id" properties
2731  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2732  */
2733 static int
2734 ibnex_create_ioc_srv_props(
2735     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2736 {
2737 	int			length, ii;
2738 	uint64_t		*srv_id;
2739 	char			*temp, *srv_names[IB_DM_MAX_IOCS_IN_IOU];
2740 	ib_dm_ioc_ctrl_profile_t *profile = &ioc_info->ioc_profile;
2741 	ibdm_srvents_info_t	 *srvents = ioc_info->ioc_serv;
2742 
2743 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props");
2744 
2745 	length = profile->ioc_service_entries * sizeof (ib_dm_srv_t);
2746 	srv_id = kmem_zalloc(length, KM_SLEEP);
2747 	temp = (char *)((char *)srv_id + (8 * profile->ioc_service_entries));
2748 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2749 		srv_names[ii] = (char *)temp + (ii * IB_DM_MAX_SVC_NAME_LEN);
2750 	}
2751 
2752 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2753 		srv_id[ii] = srvents[ii].se_attr.srv_id;
2754 		bcopy(srvents[ii].se_attr.srv_name,
2755 		    srv_names[ii], (IB_DM_MAX_SVC_NAME_LEN - 1));
2756 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2757 		    "Service Names : %s", srv_names[ii]);
2758 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2759 		    "Service ID : %llX", srv_id[ii]);
2760 	}
2761 
2762 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip,
2763 	    "service-id", (int64_t *)srv_id,
2764 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2765 		IBTF_DPRINTF_L2("ibnex",
2766 		    "\tcreate_ioc_srv_props: service-id create failed");
2767 		kmem_free(srv_id, length);
2768 		return (IBNEX_FAILURE);
2769 	}
2770 
2771 	if (ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2772 	    "service-name", (char **)srv_names,
2773 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2774 		IBTF_DPRINTF_L2("ibnex",
2775 		    "\tcreate_ioc_srv_props: service-name create failed");
2776 		kmem_free(srv_id, length);
2777 		return (IBNEX_FAILURE);
2778 	}
2779 	kmem_free(srv_id, length);
2780 	return (IBNEX_SUCCESS);
2781 }
2782 
2783 
2784 /*
2785  * ibnex_create_ioc_compatible_prop()
2786  *	Creates "compatible" property values
2787  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2788  */
2789 static int
2790 ibnex_create_ioc_compatible_prop(
2791     dev_info_t *cdip, ib_dm_ioc_ctrl_profile_t *ioc_profile)
2792 {
2793 	char		*temp;
2794 	int		rval, ii;
2795 	char		*compatible[IBNEX_MAX_COMPAT_NAMES];
2796 
2797 	/*
2798 	 * Initialize the "compatible" property string as below:
2799 	 * Compatible Strings :
2800 	 *	1. ib.V<vid>P<pid>S<subsys vid>s<subsys id>v<ver>
2801 	 *	2. ib.V<vid>P<pid>S<subsys vid>s<subsys id>
2802 	 *	3. ib.V<vid>P<pid>v<ver>
2803 	 *	4. ib.V<vid>P<pid>
2804 	 *	5. ib.C<Class>c<Subclass>p<protocol>r<protocol ver>
2805 	 *	6. ib.C<Class>c<Subclass>p<protocol>
2806 	 *
2807 	 * Note:
2808 	 *	All leading zeros must be present
2809 	 *	All numeric values must specified in hex without prefix "0x"
2810 	 */
2811 
2812 	temp = kmem_alloc(IBNEX_MAX_COMPAT_PROP_SZ, KM_SLEEP);
2813 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2814 		compatible[ii] = temp + (ii * IBNEX_MAX_COMPAT_LEN);
2815 
2816 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
2817 	    "ib.V%06xP%08xS%06xs%08xv%04x",
2818 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2819 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id,
2820 	    ioc_profile->ioc_device_ver);
2821 
2822 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
2823 	    "ib.V%06xP%08xS%06xs%08x",
2824 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2825 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id);
2826 
2827 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
2828 	    "ib.V%06xP%08xv%04x",
2829 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2830 	    ioc_profile->ioc_device_ver);
2831 
2832 	(void) snprintf(compatible[3], IBNEX_MAX_COMPAT_LEN,
2833 	    "ib.V%06xP%08x",
2834 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid);
2835 
2836 	(void) snprintf(compatible[4], IBNEX_MAX_COMPAT_LEN,
2837 	    "ib.C%04xc%04xp%04xr%04x",
2838 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2839 	    ioc_profile->ioc_protocol, ioc_profile->ioc_protocol_ver);
2840 
2841 	(void) snprintf(compatible[5], IBNEX_MAX_COMPAT_LEN,
2842 	    "ib.C%04xc%04xp%04x",
2843 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2844 	    ioc_profile->ioc_protocol);
2845 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2846 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[ii]);
2847 
2848 	/* Create the compatible property for child cdip */
2849 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2850 	    "compatible", (char **)compatible, IBNEX_MAX_COMPAT_NAMES);
2851 
2852 	if (rval != DDI_PROP_SUCCESS) {
2853 		IBTF_DPRINTF_L2("ibnex", "\tcompatible prop_create failed");
2854 		kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2855 		return (IBNEX_FAILURE);
2856 	}
2857 
2858 	kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2859 	return (IBNEX_SUCCESS);
2860 }
2861 
2862 
2863 static void
2864 ibnex_ioc_node_cleanup()
2865 {
2866 	ibnex_node_data_t *node, *delete;
2867 
2868 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2869 	for (node = ibnex.ibnex_ioc_node_head; node; ) {
2870 		delete = node;
2871 		node = node->node_next;
2872 		mutex_exit(&ibnex.ibnex_mutex);
2873 		ibnex_delete_ioc_node_data(delete);
2874 		mutex_enter(&ibnex.ibnex_mutex);
2875 	}
2876 }
2877 
2878 /*
2879  * ibnex_delete_ioc_node_data()
2880  *	Delete IOC node from the list
2881  */
2882 static void
2883 ibnex_delete_ioc_node_data(ibnex_node_data_t *node)
2884 {
2885 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data:");
2886 
2887 	mutex_enter(&ibnex.ibnex_mutex);
2888 	if ((node->node_next == NULL) && (node->node_prev == NULL)) {
2889 		ASSERT(ibnex.ibnex_ioc_node_head == node);
2890 		ibnex.ibnex_ioc_node_head = NULL;
2891 	} else if (node->node_next == NULL)
2892 		node->node_prev->node_next = NULL;
2893 	else if (node->node_prev == NULL) {
2894 		node->node_next->node_prev = NULL;
2895 		ibnex.ibnex_ioc_node_head = node->node_next;
2896 	} else {
2897 		node->node_prev->node_next = node->node_next;
2898 		node->node_next->node_prev = node->node_prev;
2899 	}
2900 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data: head %p",
2901 	    ibnex.ibnex_ioc_node_head);
2902 	mutex_exit(&ibnex.ibnex_mutex);
2903 	kmem_free(node, sizeof (ibnex_node_data_t));
2904 }
2905 
2906 
2907 /*
2908  * ibnex_dm_callback()
2909  *
2910  *	This routine is registered with the IBDM during IB nexus attach. It
2911  *	is called by the IBDM module when it discovers
2912  *		New HCA port
2913  *		HCA port removal
2914  *		New HCA added
2915  *		HCA removed
2916  */
2917 void
2918 ibnex_dm_callback(void *arg, ibdm_events_t flag)
2919 {
2920 	char	hca_guid[IBNEX_HCAGUID_STRSZ];
2921 	ibdm_ioc_info_t	*ioc_list, *ioc;
2922 	ibnex_node_data_t	*node_data;
2923 
2924 	IBTF_DPRINTF_L4("ibnex", "\tdm_callback: attr %p event %x", arg, flag);
2925 
2926 	switch (flag) {
2927 	case IBDM_EVENT_HCA_ADDED:
2928 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2929 		    (*(longlong_t *)arg));
2930 		/* Create a devctl minor node for the HCA's port  */
2931 		if (ddi_create_minor_node(ibnex.ibnex_dip, hca_guid, S_IFCHR,
2932 		    ddi_get_instance(ibnex.ibnex_dip),
2933 		    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
2934 			IBTF_DPRINTF_L4("ibnex", "\tdm_callback: failed to "
2935 			    "create minor node for port w/ guid %s", hca_guid);
2936 		}
2937 
2938 		break;
2939 
2940 	case IBDM_EVENT_HCA_REMOVED:
2941 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2942 		    (*(longlong_t *)arg));
2943 		ddi_remove_minor_node(ibnex.ibnex_dip, hca_guid);
2944 		break;
2945 
2946 	case IBDM_EVENT_IOC_PROP_UPDATE:
2947 		ioc = ioc_list = (ibdm_ioc_info_t *)arg;
2948 		if (ioc_list == NULL)
2949 			break;
2950 
2951 		mutex_enter(&ibnex.ibnex_mutex);
2952 		while (ioc_list) {
2953 			if ((node_data = ibnex_is_node_data_present(
2954 			    IBNEX_IOC_NODE, ioc_list, 0, 0)) != NULL &&
2955 			    node_data->node_dip != NULL) {
2956 				ibnex_update_prop(node_data, ioc_list);
2957 			}
2958 			ioc_list = ioc_list->ioc_next;
2959 		}
2960 		mutex_exit(&ibnex.ibnex_mutex);
2961 		ibdm_ibnex_free_ioc_list(ioc);
2962 	}
2963 }
2964 
2965 
2966 /*
2967  * ibnex_get_dip_from_guid()
2968  *
2969  *	Searches the linked list of the port nodes and returns the dip for
2970  *	the of the Port / Node guid requested.
2971  *	Returns NULL if not found
2972  */
2973 int
2974 ibnex_get_dip_from_guid(ib_guid_t guid, int index, ib_pkey_t pkey,
2975     dev_info_t **dip)
2976 {
2977 	int			node_index;
2978 	ib_guid_t		node_guid;
2979 	ib_pkey_t		node_pkey;
2980 	ibnex_node_data_t	*node_data;
2981 
2982 	IBTF_DPRINTF_L4("ibnex",
2983 	    "\tget_dip_from_guid: guid = %llX", guid);
2984 
2985 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2986 	/* Search for a matching entry in internal lists */
2987 	node_data = ibnex.ibnex_port_node_head;
2988 	while (node_data) {
2989 		node_guid = node_data->node_data.port_node.port_guid;
2990 		node_index = node_data->node_data.port_node.port_commsvc_idx;
2991 		node_pkey = node_data->node_data.port_node.port_pkey;
2992 		if ((node_guid == guid) && (index == node_index) &&
2993 		    (node_pkey == pkey)) {
2994 			break;
2995 		}
2996 		node_data = node_data->node_next;
2997 	}
2998 
2999 	/* matching found with a valid dip */
3000 	if (node_data && node_data->node_dip) {
3001 		*dip = node_data->node_dip;
3002 		return (IBNEX_SUCCESS);
3003 	} else if (node_data && !node_data->node_dip) {	/* dip is invalid */
3004 		*dip = NULL;
3005 		return (IBNEX_SUCCESS);
3006 	}
3007 
3008 	/* no match found */
3009 	*dip = NULL;
3010 	return (IBNEX_FAILURE);
3011 }
3012 
3013 
3014 /*
3015  * ibnex_comm_svc_init()
3016  *	Read the property and cache the values in the global
3017  *	structure.
3018  *	Check for max allowed length (4 bytes) of service name
3019  *	(each element of the property)
3020  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3021  */
3022 static ibnex_rval_t
3023 ibnex_comm_svc_init(char *property, ibnex_node_type_t type)
3024 {
3025 	int		i, len, count;
3026 	int		ncomm_svcs;
3027 	char		**comm_svcp;
3028 	char		**servicep = NULL;
3029 	uint_t		nservices = 0;
3030 	int			*valid = NULL;
3031 
3032 	IBTF_DPRINTF_L4("ibnex", "\tcomm_svc_init : %s property, type = %x",
3033 	    property, type);
3034 
3035 	/* lookup the string array property */
3036 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, ibnex.ibnex_dip,
3037 	    DDI_PROP_DONTPASS, property, &servicep, &nservices) !=
3038 	    DDI_PROP_SUCCESS) {
3039 		IBTF_DPRINTF_L2("ibnex", "\t%s property undefined", property);
3040 		return (IBNEX_SUCCESS);
3041 	}
3042 
3043 	if (nservices)
3044 		valid = kmem_zalloc(nservices * sizeof (int), KM_SLEEP);
3045 
3046 
3047 	/* first read the file to get a count of valid service entries */
3048 	for (ncomm_svcs = 0, count = 0; count < nservices; count++) {
3049 		int j;
3050 
3051 		len = strlen(servicep[count]);
3052 		/*
3053 		 * ib.conf has NULL strings for port-svc-list &
3054 		 * hca-svc-list, by default. Do not have L2 message
3055 		 * for these.
3056 		 */
3057 		if (len == 1 || len > 4) {
3058 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3059 			    "Service name %s for property %s invalid : "
3060 			    "length %d", servicep[count], property, len);
3061 			continue;
3062 		} else if (len == 0) {
3063 			continue;
3064 		}
3065 		if (ibnex_unique_svcname(servicep[count]) != IBNEX_SUCCESS) {
3066 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3067 			    "Service name %s invalid : Not unique",
3068 			    servicep[count]);
3069 			continue;
3070 		}
3071 
3072 		/*
3073 		 * ibnex_unique_svcname checks for uniqueness in service names
3074 		 * communication services fully initialized. Check uniqueness
3075 		 * in service names currently initialized.
3076 		 */
3077 		for (j = 0; j < count; j++)
3078 			if (valid[j] && strncmp(servicep[count],
3079 			    servicep[j], 4) == 0) {
3080 				IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3081 				    "Service name %s invalid : Not unique",
3082 				    servicep[count]);
3083 					continue;
3084 			}
3085 
3086 		valid[count] = 1;
3087 		ncomm_svcs++;
3088 	}
3089 
3090 	/* if no valid entries found, bailout */
3091 	if (nservices == 0 || ncomm_svcs == 0) {
3092 		IBTF_DPRINTF_L4("ibnex", "\tNo %s entries found", property);
3093 		ddi_prop_free(servicep); /* free the property */
3094 		if (valid)
3095 			kmem_free(valid, nservices * sizeof (int));
3096 		return (IBNEX_SUCCESS);
3097 	}
3098 
3099 	comm_svcp = kmem_zalloc((ncomm_svcs * sizeof (char *)), KM_SLEEP);
3100 	if (type == IBNEX_PORT_COMMSVC_NODE) {
3101 		ibnex.ibnex_comm_svc_names = comm_svcp;
3102 		ibnex.ibnex_num_comm_svcs = ncomm_svcs;
3103 	} else if (type == IBNEX_VPPA_COMMSVC_NODE) {
3104 		ibnex.ibnex_vppa_comm_svc_names = comm_svcp;
3105 		ibnex.ibnex_nvppa_comm_svcs = ncomm_svcs;
3106 	} else if (type == IBNEX_HCASVC_COMMSVC_NODE) {
3107 		ibnex.ibnex_hcasvc_comm_svc_names = comm_svcp;
3108 		ibnex.ibnex_nhcasvc_comm_svcs = ncomm_svcs;
3109 	}
3110 
3111 	/* copy the services into an array of strings */
3112 	for (i = 0, count = 0; count < nservices; count++) {
3113 		if (valid[count] == 0)	/* Skip invalid ones */
3114 			continue;
3115 		comm_svcp[i] = kmem_alloc(len + 1, KM_SLEEP);
3116 		(void) strcpy(comm_svcp[i], servicep[count]);
3117 		IBTF_DPRINTF_L4("ibnex",
3118 		    "\t\tService [%d]: %s", i, comm_svcp[i]);
3119 		++i;
3120 	}
3121 	ddi_prop_free(servicep);
3122 	kmem_free(valid, nservices * sizeof (int));
3123 	return (IBNEX_SUCCESS);
3124 }
3125 
3126 
3127 /*
3128  * ibnex_comm_svc_fini()
3129  *	Deallocate all the memory allocated for the communication
3130  *	service arrays.
3131  */
3132 static void
3133 ibnex_comm_svc_fini()
3134 {
3135 	int	index;
3136 
3137 	for (index = 0; index < ibnex.ibnex_num_comm_svcs; index++) {
3138 		kmem_free(ibnex.ibnex_comm_svc_names[index],
3139 		    (strlen(ibnex.ibnex_comm_svc_names[index]) + 1));
3140 	}
3141 	if (ibnex.ibnex_comm_svc_names) {
3142 		kmem_free(ibnex.ibnex_comm_svc_names,
3143 		    ibnex.ibnex_num_comm_svcs * sizeof (char *));
3144 	}
3145 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
3146 		kmem_free(ibnex.ibnex_vppa_comm_svc_names[index],
3147 		    strlen(ibnex.ibnex_vppa_comm_svc_names[index]) +1);
3148 	}
3149 	if (ibnex.ibnex_vppa_comm_svc_names) {
3150 		kmem_free(ibnex.ibnex_vppa_comm_svc_names,
3151 		    ibnex.ibnex_nvppa_comm_svcs * sizeof (char *));
3152 	}
3153 	for (index = 0; index < ibnex.ibnex_nhcasvc_comm_svcs; index++) {
3154 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names[index],
3155 		    strlen(ibnex.ibnex_hcasvc_comm_svc_names[index]) +1);
3156 	}
3157 	if (ibnex.ibnex_hcasvc_comm_svc_names) {
3158 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names,
3159 		    ibnex.ibnex_nhcasvc_comm_svcs * sizeof (char *));
3160 	}
3161 	ibnex.ibnex_comm_svc_names = NULL;
3162 	ibnex.ibnex_num_comm_svcs = 0;
3163 	ibnex.ibnex_vppa_comm_svc_names = NULL;
3164 	ibnex.ibnex_nvppa_comm_svcs = 0;
3165 	ibnex.ibnex_hcasvc_comm_svc_names = NULL;
3166 	ibnex.ibnex_nhcasvc_comm_svcs = 0;
3167 }
3168 
3169 
3170 /*
3171  * ibnex_commsvc_initnode()
3172  *	This routine is specific to port/VPPA node creation
3173  *	Creates a device node for the comm service specified by commsvc_index
3174  *	Creates all the device node properties
3175  *	Allocates and initializes the node specific data
3176  *	Binds the device driver of the device node
3177  *	Returns "dev_info_t" of the child node or NULL in case of failure
3178  *	Sets IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY in "rval" to reflect
3179  *	if the operation was successful, failed or was not performed.
3180  */
3181 dev_info_t *
3182 ibnex_commsvc_initnode(dev_info_t *parent, ibdm_port_attr_t *port_attr,
3183     int index, int node_type, ib_pkey_t pkey, int *rval, int flag)
3184 {
3185 	int			ret;
3186 	char			*svcname;
3187 	dev_info_t		*cdip;
3188 	ibnex_node_data_t	*node_data;
3189 	ibnex_port_node_t	*port_node;
3190 	char devname[MAXNAMELEN];
3191 
3192 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3193 
3194 	*rval = IBNEX_SUCCESS;
3195 
3196 	/*
3197 	 * prevent any races
3198 	 * we have seen this node_data and it has been initialized
3199 	 * Note that node_dip is already NULL if unconfigure is in
3200 	 * progress.
3201 	 */
3202 	node_data = ibnex_is_node_data_present(node_type, (void *)port_attr,
3203 	    index, pkey);
3204 
3205 	/*
3206 	 * If this node has been explicity unconfigured by cfgadm, then it can
3207 	 * be configured back again only by cfgadm configure.
3208 	 */
3209 	if (node_data && (node_data->node_ap_state ==
3210 	    IBNEX_NODE_AP_UNCONFIGURED)) {
3211 		*rval = IBNEX_FAILURE;
3212 		return (NULL);
3213 	}
3214 
3215 	if (node_data && node_data->node_dip) {
3216 		/*
3217 		 * Return NULL if another configure
3218 		 * operation is in progress
3219 		 */
3220 		if (node_data->node_state == IBNEX_CFGADM_CONFIGURING) {
3221 			*rval = IBNEX_BUSY;
3222 			return (NULL);
3223 		} else {
3224 			return (node_data->node_dip);
3225 		}
3226 	} else if (node_data == NULL) {
3227 		/* allocate a new ibnex_node_data_t */
3228 		node_data = ibnex_init_child_nodedata(node_type, port_attr,
3229 		    index, pkey);
3230 		node_data->node_data.port_node.port_pdip = parent;
3231 	}
3232 
3233 	/*
3234 	 * Return NULL if another unconfigure operation is in progress
3235 	 */
3236 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
3237 		*rval = IBNEX_BUSY;
3238 		return (NULL);
3239 	}
3240 
3241 	ASSERT(node_data->node_state != IBNEX_CFGADM_CONFIGURED);
3242 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3243 
3244 	switch (node_type) {
3245 		case IBNEX_VPPA_COMMSVC_NODE :
3246 			svcname = ibnex.ibnex_vppa_comm_svc_names[index];
3247 			port_node = &node_data->node_data.port_node;
3248 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,%x,%s",
3249 			    IBNEX_IBPORT_CNAME, port_node->port_num,
3250 			    port_node->port_pkey, svcname);
3251 			break;
3252 		case IBNEX_HCASVC_COMMSVC_NODE :
3253 			svcname = ibnex.ibnex_hcasvc_comm_svc_names[index];
3254 			port_node = &node_data->node_data.port_node;
3255 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,0,%s",
3256 			    IBNEX_IBPORT_CNAME, port_node->port_num, svcname);
3257 			break;
3258 		case IBNEX_PORT_COMMSVC_NODE :
3259 			svcname = ibnex.ibnex_comm_svc_names[index];
3260 			port_node = &node_data->node_data.port_node;
3261 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,0,%s",
3262 			    IBNEX_IBPORT_CNAME, port_node->port_num, svcname);
3263 			break;
3264 		default :
3265 			IBTF_DPRINTF_L2("ibnex", "\tcommsvc_initnode:"
3266 			    "\tInvalid Node type");
3267 			*rval = IBNEX_FAILURE;
3268 			mutex_exit(&ibnex.ibnex_mutex);
3269 			ibnex_delete_port_node_data(node_data);
3270 			mutex_enter(&ibnex.ibnex_mutex);
3271 			return (NULL);
3272 	}
3273 
3274 	if ((cdip = ndi_devi_findchild(parent, devname)) != NULL) {
3275 		if (i_ddi_devi_attached(cdip)) {
3276 			node_data->node_dip	= cdip;
3277 			node_data->node_data.port_node.port_pdip = parent;
3278 			node_data->node_state = IBNEX_CFGADM_CONFIGURED;
3279 			ddi_set_parent_data(cdip, node_data);
3280 			return (cdip);
3281 		}
3282 	} else {
3283 		ndi_devi_alloc_sleep(parent,
3284 		    IBNEX_IBPORT_CNAME, (pnode_t)DEVI_SID_NODEID, &cdip);
3285 	}
3286 
3287 	node_data->node_dip	= cdip;
3288 	ddi_set_parent_data(cdip, node_data);
3289 	mutex_exit(&ibnex.ibnex_mutex);
3290 
3291 
3292 	if (ibnex_create_port_node_prop(port_attr, cdip, svcname, pkey) ==
3293 	    IBNEX_SUCCESS) {
3294 		if (flag == IBNEX_DEVFS_ENUMERATE)
3295 			ret = ndi_devi_bind_driver(cdip, 0);
3296 		else
3297 			ret = ndi_devi_online(cdip, 0);
3298 		if (ret == NDI_SUCCESS) {
3299 			mutex_enter(&ibnex.ibnex_mutex);
3300 			node_data->node_state	= IBNEX_CFGADM_CONFIGURED;
3301 			node_data->node_data.port_node.port_pdip = parent;
3302 			return (cdip);
3303 		}
3304 	}
3305 
3306 	*rval = IBNEX_FAILURE;
3307 	ibnex_delete_port_node_data(node_data);
3308 	(void) ndi_devi_free(cdip);
3309 	mutex_enter(&ibnex.ibnex_mutex);
3310 	IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: failure exit");
3311 	return (NULL);
3312 }
3313 
3314 
3315 /*
3316  * ibnex_create_port_node_prop()
3317  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3318  */
3319 static int
3320 ibnex_create_port_node_prop(ibdm_port_attr_t *port_attr,
3321     dev_info_t *child_dip, char *srvname, ib_pkey_t pkey)
3322 {
3323 	if (ibnex_create_port_compatible_prop(child_dip,
3324 	    srvname, port_attr) != DDI_PROP_SUCCESS) {
3325 		IBTF_DPRINTF_L2("ibnex",
3326 		    "\tcreate_port_node_prop: compatible update failed");
3327 		return (IBNEX_FAILURE);
3328 	}
3329 	if ((pkey != 0) && (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3330 	    "port-pkey", pkey) != DDI_PROP_SUCCESS)) {
3331 		IBTF_DPRINTF_L2("ibnex",
3332 		    "\tcreate_port_node_prop: port-num update failed");
3333 		return (IBNEX_FAILURE);
3334 	}
3335 
3336 	/*
3337 	 * For HCA_SVC device nodes, port_num will be 0.
3338 	 * Do not create the "port-number" & "port-guid" properties.
3339 	 */
3340 	if (port_attr->pa_port_num != 0) {
3341 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3342 		    "port-number", port_attr->pa_port_num) !=
3343 		    DDI_PROP_SUCCESS) {
3344 			IBTF_DPRINTF_L2("ibnex",
3345 			    "\tcreate_port_node_prop: port-num update failed");
3346 			return (IBNEX_FAILURE);
3347 		}
3348 		if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3349 		    "port-guid", port_attr->pa_port_guid) !=
3350 		    DDI_PROP_SUCCESS) {
3351 			IBTF_DPRINTF_L2("ibnex",
3352 			    "\tcreate_port_node_prop: port-guid update failed");
3353 			return (IBNEX_FAILURE);
3354 		}
3355 	} else {
3356 		ibdm_hca_list_t	*hca_list;
3357 
3358 		/*
3359 		 * HCA_SVC nodes require "num-ports" & "port-guids"
3360 		 * properties.
3361 		 *
3362 		 * To create the num-ports & port-guids attribute :
3363 		 * 1. Get HCA list (ibdm_ibnex_get_hca_info_by_guid)
3364 		 * 2. Form the array of port GUIDs.
3365 		 */
3366 		if ((hca_list = ibdm_ibnex_get_hca_info_by_guid(
3367 		    port_attr->pa_hca_guid)) == NULL) {
3368 			IBTF_DPRINTF_L2("ibnex",
3369 			    "\tcreate_port_node_prop: hca_info_by_guid failed");
3370 			return (IBNEX_FAILURE);
3371 		}
3372 
3373 		if (hca_list->hl_nports != 0) {
3374 			ib_guid_t	*port_guids;
3375 			uint8_t		portnum;
3376 
3377 			ASSERT(hca_list->hl_port_attr != NULL);
3378 
3379 			port_guids = kmem_zalloc(
3380 			    hca_list->hl_nports * sizeof (ib_guid_t),
3381 			    KM_SLEEP);
3382 
3383 			for (portnum = 0; portnum < hca_list->hl_nports;
3384 			    portnum++) {
3385 				port_guids[portnum] = (hca_list->
3386 				    hl_port_attr[portnum]).pa_port_guid;
3387 			}
3388 
3389 			if (ndi_prop_update_int64_array(DDI_DEV_T_NONE,
3390 			    child_dip, "port-guids", (int64_t *)port_guids,
3391 			    hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3392 				IBTF_DPRINTF_L2("ibnex",
3393 				    "\tcreate_port_node_prop: port-guids "
3394 				    "create failed");
3395 				kmem_free(port_guids, hca_list->hl_nports *
3396 				    sizeof (ib_guid_t));
3397 				ibdm_ibnex_free_hca_list(hca_list);
3398 				return (IBNEX_FAILURE);
3399 			}
3400 			kmem_free(port_guids, hca_list->hl_nports *
3401 			    sizeof (ib_guid_t));
3402 		}
3403 
3404 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3405 		    "num-ports", hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3406 			IBTF_DPRINTF_L2("ibnex",
3407 			    "\tcreate_port_node_prop: num-ports update failed");
3408 			ibdm_ibnex_free_hca_list(hca_list);
3409 			return (IBNEX_FAILURE);
3410 		}
3411 		ibdm_ibnex_free_hca_list(hca_list);
3412 	}
3413 
3414 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3415 	    "hca-guid", port_attr->pa_hca_guid) != DDI_PROP_SUCCESS) {
3416 		IBTF_DPRINTF_L2("ibnex",
3417 		    "\tcreate_port_node_prop: hca-guid update failed");
3418 		return (IBNEX_FAILURE);
3419 	}
3420 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3421 	    "product-id", port_attr->pa_productid) != DDI_PROP_SUCCESS) {
3422 		IBTF_DPRINTF_L2("ibnex",
3423 		    "\tcreate_port_node_prop: product-id update failed");
3424 		return (IBNEX_FAILURE);
3425 	}
3426 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3427 	    "vendor-id", port_attr->pa_vendorid) != DDI_PROP_SUCCESS) {
3428 		IBTF_DPRINTF_L2("ibnex",
3429 		    "\tcreate_port_node_prop: vendor-id update failed");
3430 		return (IBNEX_FAILURE);
3431 	}
3432 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip, "device-version",
3433 	    port_attr->pa_dev_version) != DDI_PROP_SUCCESS) {
3434 		IBTF_DPRINTF_L2("ibnex",
3435 		    "\tcreate_port_node_prop: device-version update failed");
3436 		return (IBNEX_FAILURE);
3437 	}
3438 	return (IBNEX_SUCCESS);
3439 }
3440 
3441 
3442 /*
3443  * ibnex_str2int()
3444  *	Utility function that converts a string of length  "len" to
3445  *	integer.
3446  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3447  */
3448 static int
3449 ibnex_str2int(char *c, int len, int *ret)
3450 {
3451 	int intval = 0, ii;
3452 
3453 	IBTF_DPRINTF_L4("ibnex", "\tstr2int: Int string %s..", c);
3454 	*ret = IBNEX_SUCCESS;
3455 	for (ii = 0; ii < len; ii ++) {
3456 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3457 			intval = intval * 10 +c[ii] - '0';
3458 		else {
3459 			IBTF_DPRINTF_L2("ibnex",
3460 			    "\tstr2int: Invalid integer string %s..", c);
3461 			*ret = IBNEX_FAILURE;
3462 			break;
3463 		}
3464 	}
3465 
3466 	return (intval);
3467 }
3468 
3469 
3470 /*
3471  * ibnex_str2hex()
3472  *	Utility functions that converts a string of length  "len" to
3473  *	hex value. Note. This function does not handle strings which
3474  *	string length more than 8 bytes.
3475  *
3476  */
3477 uint64_t
3478 ibnex_str2hex(char *c, int len, int *ret)
3479 {
3480 	uint64_t hex = 0, ii;
3481 
3482 	*ret = IBNEX_SUCCESS;
3483 	for (ii = 0; ii < len; ii ++) {
3484 		hex = (ii == 0) ? hex : (hex << 4);
3485 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3486 			hex |= c[ii] - '0';
3487 		else if ((c[ii] >= 'a') && (c[ii] <= 'f'))
3488 			hex |= c[ii] - 'a' + 10;
3489 		else if ((c[ii] >= 'A') && (c[ii] <= 'F'))
3490 			hex |= c[ii] - 'A' + 10;
3491 		else {
3492 			IBTF_DPRINTF_L2("ibnex",
3493 			    "\tstr2hex: Invalid integer string");
3494 			*ret = IBNEX_FAILURE;
3495 			break;
3496 		}
3497 	}
3498 
3499 	return (hex);
3500 }
3501 
3502 
3503 /*
3504  * ibnex_create_port_compatible_prop()
3505  *	Creates 'Compatibility' property for port / HCA_SVC device nodes
3506  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3507  */
3508 static int
3509 ibnex_create_port_compatible_prop(dev_info_t *child_dip,
3510     char *comm_svcp, ibdm_port_attr_t *port_attr)
3511 {
3512 	int 	rval, i;
3513 	char	*temp;
3514 	char	*compatible[IBNEX_MAX_IBPORT_COMPAT_NAMES];
3515 
3516 	IBTF_DPRINTF_L4("ibnex", "\tcreate_port_compatible_prop: Begin");
3517 	/*
3518 	 * Initialize the "compatible" property string as below:
3519 	 * Compatible Strings :
3520 	 * 1. ib.V<vid>P<pid>v<revision>.<service name>.
3521 	 * 2. ib.V<vid>P<pid>.<service name>.
3522 	 * 3. ib.<service name>
3523 	 * Leading zeros must be present
3524 	 */
3525 	temp = kmem_alloc(IBNEX_MAX_IBPORT_COMPAT_PROP_SZ, KM_SLEEP);
3526 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++) {
3527 		compatible[i] = temp + (i * IBNEX_MAX_COMPAT_LEN);
3528 	}
3529 
3530 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
3531 	    "ib.V%06xP%08xv%04x.%s",
3532 	    port_attr->pa_vendorid, port_attr->pa_productid,
3533 	    port_attr->pa_dev_version, comm_svcp);
3534 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
3535 	    "ib.V%06xP%08x.%s",
3536 	    port_attr->pa_vendorid, port_attr->pa_productid,
3537 	    comm_svcp);
3538 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
3539 	    "ib.%s", comm_svcp);
3540 
3541 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++)
3542 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[i]);
3543 
3544 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, child_dip,
3545 	    "compatible", (char **)compatible, IBNEX_MAX_IBPORT_COMPAT_NAMES);
3546 
3547 	if (rval != DDI_PROP_SUCCESS) {
3548 		kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3549 		return (IBNEX_FAILURE);
3550 	}
3551 	kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3552 	return (IBNEX_SUCCESS);
3553 }
3554 
3555 
3556 /*
3557  * ibnex_delete_port_node_data()
3558  *	Delete the parent private node data from the linked list
3559  *	Deallocate the memory of the port/ioc attributes
3560  *	Deallocate the memory of the node data
3561  */
3562 static void
3563 ibnex_delete_port_node_data(ibnex_node_data_t *node)
3564 {
3565 	mutex_enter(&ibnex.ibnex_mutex);
3566 	if ((node->node_next == NULL) && (node->node_prev == NULL))
3567 		ibnex.ibnex_port_node_head = NULL;
3568 	else if (node->node_next == NULL)
3569 		node->node_prev->node_next = NULL;
3570 	else if (node->node_prev == NULL) {
3571 		node->node_next->node_prev = NULL;
3572 		ibnex.ibnex_port_node_head = node->node_next;
3573 	} else {
3574 		node->node_prev->node_next = node->node_next;
3575 		node->node_next->node_prev = node->node_prev;
3576 	}
3577 	mutex_exit(&ibnex.ibnex_mutex);
3578 	kmem_free(node, sizeof (ibnex_node_data_t));
3579 }
3580 
3581 
3582 /*
3583  * ibnex_is_node_data_present()
3584  *	Checks whether ibnex_node_t is created already
3585  *	Returns ibnex_node_data_t if found, otherwise NULL
3586  */
3587 static ibnex_node_data_t *
3588 ibnex_is_node_data_present(ibnex_node_type_t node_type, void *attr,
3589     int index, ib_pkey_t pkey)
3590 {
3591 	ibnex_node_data_t	*nodep;
3592 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3593 	if (node_type == IBNEX_IOC_NODE) {
3594 		ibdm_ioc_info_t *ioc_infop = (ibdm_ioc_info_t *)attr;
3595 
3596 		for (nodep = ibnex.ibnex_ioc_node_head; nodep != NULL;
3597 		    nodep = nodep->node_next) {
3598 			if (nodep->node_data.ioc_node.ioc_guid ==
3599 			    ioc_infop->ioc_profile.ioc_guid) {
3600 				return (nodep);
3601 			}
3602 		}
3603 
3604 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3605 		for (nodep = ibnex.ibnex_pseudo_node_head; nodep;
3606 		    nodep = nodep->node_next)
3607 			if (strcmp(nodep->node_data.pseudo_node.
3608 			    pseudo_node_addr, (char *)attr) == 0)
3609 				return (nodep);
3610 
3611 	} else {
3612 		ibdm_port_attr_t *pattrp = (ibdm_port_attr_t *)attr;
3613 
3614 		for (nodep = ibnex.ibnex_port_node_head; nodep != NULL;
3615 		    nodep = nodep->node_next) {
3616 			if ((nodep->node_data.port_node.port_guid ==
3617 			    pattrp->pa_port_guid) &&
3618 			    (nodep->node_data.port_node.port_commsvc_idx ==
3619 			    index) &&
3620 			    (nodep->node_data.port_node.port_pkey == pkey)) {
3621 				return (nodep);
3622 			}
3623 		}
3624 	}
3625 	return (NULL);
3626 }
3627 
3628 /*
3629  * ibnex_lookup_unit_address_prop:
3630  *
3631  *	If property with name is found, return its value
3632  *	otherwise return NULL.
3633  */
3634 static char *
3635 ibnex_lookup_named_prop(ddi_prop_t *head, char *name)
3636 {
3637 	ddi_prop_t	*propp;
3638 
3639 	/* Search the list of properties for name */
3640 	for (propp = head; propp != NULL; propp = propp->prop_next)  {
3641 		if (strcmp(propp->prop_name, name) != 0)
3642 			continue;
3643 		/* named property should be valid and have a value */
3644 		if (propp->prop_len <= 1)
3645 			break;
3646 		return ((char *)propp->prop_val);
3647 	}
3648 
3649 	return ((char *)0);
3650 }
3651 
3652 
3653 /*
3654  * ibnex_pseudo_initnodes()
3655  *	This routine is specific to pseudo node information handling
3656  *	Creates a ibnex_node_data_t all pseudo nodes children of ibnex
3657  */
3658 void
3659 ibnex_pseudo_initnodes()
3660 {
3661 	int			pnam_len, len;
3662 	ibnex_node_data_t	*nodep;
3663 	struct hwc_spec		*list, *spec;
3664 	char			*node_addr, *temp, *unit_addr;
3665 	char			*node_type;
3666 
3667 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_initnodes");
3668 
3669 	mutex_enter(&ibnex.ibnex_mutex);
3670 	/*
3671 	 * get a list of all "pseudo" children of "ib".
3672 	 * for these children initialize/allocate an internal
3673 	 * ibnex_node_data_t.
3674 	 */
3675 	list = hwc_get_child_spec(ibnex.ibnex_dip, (major_t)-1);
3676 	for (spec = list; spec != NULL; spec = spec->hwc_next) {
3677 		if (spec->hwc_devi_sys_prop_ptr == NULL)
3678 			continue;
3679 
3680 		/* Check "ib-node-type" property for IOC .conf */
3681 		node_type = ibnex_lookup_named_prop(
3682 		    spec->hwc_devi_sys_prop_ptr, "ib-node-type");
3683 
3684 		/* "unit-address" property should be present */
3685 		temp = ibnex_lookup_named_prop(
3686 		    spec->hwc_devi_sys_prop_ptr, "unit-address");
3687 		if (temp == NULL)
3688 			continue;
3689 
3690 		pnam_len = strlen(spec->hwc_devi_name) + strlen(temp) + 2;
3691 
3692 		node_addr = kmem_zalloc(pnam_len, KM_SLEEP);
3693 
3694 		(void) snprintf(node_addr,
3695 		    pnam_len, "%s,%s", spec->hwc_devi_name, temp);
3696 
3697 		nodep = ibnex_is_node_data_present(
3698 		    IBNEX_PSEUDO_NODE, (void *)node_addr, 0, 0);
3699 
3700 		if (nodep) {
3701 			kmem_free(node_addr, pnam_len);
3702 			continue;
3703 		}
3704 
3705 		nodep = ibnex_init_child_nodedata(IBNEX_PSEUDO_NODE,
3706 		    (void *)spec->hwc_devi_name, 0, 0);
3707 
3708 		nodep->node_data.pseudo_node.pseudo_node_addr = node_addr;
3709 		(void) snprintf(nodep->node_data.
3710 		    pseudo_node.pseudo_node_addr, pnam_len, "%s", node_addr);
3711 
3712 		len = strlen(temp) + 1;
3713 		unit_addr = (char *)kmem_alloc(len, KM_SLEEP);
3714 		nodep->node_data.pseudo_node.pseudo_unit_addr = unit_addr;
3715 		(void) snprintf(unit_addr, len, "%s", temp);
3716 		nodep->node_data.pseudo_node.pseudo_unit_addr_len = len;
3717 
3718 		if (node_type && strcmp(node_type, "merge") == 0)
3719 			nodep->node_data.pseudo_node.pseudo_merge_node = 1;
3720 
3721 		IBTF_DPRINTF_L3("ibnex", "\tpseudo_initnodes: unit addr = %s"
3722 		    " : drv name = %s", unit_addr, spec->hwc_devi_name);
3723 	}
3724 	hwc_free_spec_list(list);
3725 	mutex_exit(&ibnex.ibnex_mutex);
3726 }
3727 
3728 
3729 /*
3730  * ibnex_init_child_nodedata()
3731  *
3732  *	Allocate memory for the parent private data for device node
3733  *	Initializes the parent private child device node data.
3734  *	Returns pointer to the parent private data
3735  */
3736 static ibnex_node_data_t *
3737 ibnex_init_child_nodedata(ibnex_node_type_t node_type, void *attr, int index,
3738     ib_pkey_t pkey)
3739 {
3740 	char			 *devi_name;
3741 	ibdm_ioc_info_t		 *ioc_info;
3742 	ibnex_ioc_node_t	 *ioc_node;
3743 	ibnex_node_data_t	 *node_data;
3744 	ib_dm_ioc_ctrl_profile_t *ioc_profile;
3745 
3746 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3747 
3748 	node_data = kmem_zalloc(sizeof (ibnex_node_data_t), KM_SLEEP);
3749 	node_data->node_ap_state = IBNEX_NODE_AP_CONFIGURED;
3750 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3751 	node_data->node_type	= node_type;
3752 
3753 	if (node_type == IBNEX_IOC_NODE) {
3754 		ioc_info	= (ibdm_ioc_info_t *)attr;
3755 		ioc_profile	= &ioc_info->ioc_profile;
3756 		ioc_node	= &node_data->node_data.ioc_node;
3757 
3758 		ioc_node->iou_guid = ioc_info->ioc_iou_guid;
3759 		ioc_node->ioc_guid = ioc_profile->ioc_guid;
3760 		(void) strncpy(ioc_node->ioc_id_string,
3761 		    (char *)ioc_profile->ioc_id_string,
3762 		    IB_DM_IOC_ID_STRING_LEN);
3763 		ioc_node->ioc_ngids = ioc_info->ioc_nportgids;
3764 
3765 		node_data->node_next = ibnex.ibnex_ioc_node_head;
3766 		node_data->node_prev = NULL;
3767 		if (ibnex.ibnex_ioc_node_head)
3768 			ibnex.ibnex_ioc_node_head->node_prev = node_data;
3769 		ibnex.ibnex_ioc_node_head = node_data;
3770 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3771 		devi_name = (char *)attr;
3772 		node_data->node_data.pseudo_node.pseudo_devi_name =
3773 		    kmem_zalloc(strlen(devi_name) + 1, KM_SLEEP);
3774 		(void) strncpy(node_data->node_data.pseudo_node.
3775 		    pseudo_devi_name, devi_name, strlen(devi_name));
3776 		node_data->node_next = ibnex.ibnex_pseudo_node_head;
3777 		node_data->node_prev = NULL;
3778 		if (ibnex.ibnex_pseudo_node_head)
3779 			ibnex.ibnex_pseudo_node_head->node_prev = node_data;
3780 		ibnex.ibnex_pseudo_node_head = node_data;
3781 	} else {
3782 		node_data->node_data.port_node.port_hcaguid =
3783 		    ((ibdm_port_attr_t *)attr)->pa_hca_guid;
3784 		node_data->node_data.port_node.port_guid =
3785 		    ((ibdm_port_attr_t *)attr)->pa_port_guid;
3786 		node_data->node_data.port_node.port_num =
3787 		    ((ibdm_port_attr_t *)attr)->pa_port_num;
3788 		node_data->node_data.port_node.port_commsvc_idx = index;
3789 		node_data->node_data.port_node.port_pkey = pkey;
3790 
3791 		node_data->node_next = ibnex.ibnex_port_node_head;
3792 		node_data->node_prev = NULL;
3793 		if (ibnex.ibnex_port_node_head)
3794 			ibnex.ibnex_port_node_head->node_prev = node_data;
3795 		ibnex.ibnex_port_node_head = node_data;
3796 	}
3797 	return (node_data);
3798 }
3799 
3800 static int
3801 ibnex_get_eventcookie(dev_info_t *dip, dev_info_t *rdip,
3802     char *eventname, ddi_eventcookie_t *cookie)
3803 {
3804 	int rc;
3805 
3806 
3807 	IBTF_DPRINTF_L4("ibnex", "ibnex_get_eventcookie(%p, %p, %s, 0x%X)",
3808 	    dip, rdip, eventname, cookie);
3809 
3810 	rc = ndi_event_retrieve_cookie(ibnex.ibnex_ndi_event_hdl,
3811 	    rdip, eventname, cookie, NDI_EVENT_NOPASS);
3812 	if (rc == NDI_SUCCESS) {
3813 		mutex_enter(&ibnex.ibnex_mutex);
3814 		ibnex.ibnex_prop_update_evt_cookie = *cookie;
3815 		mutex_exit(&ibnex.ibnex_mutex);
3816 	}
3817 
3818 	return (rc);
3819 }
3820 
3821 static int
3822 ibnex_add_eventcall(dev_info_t *dip, dev_info_t *rdip,
3823     ddi_eventcookie_t cookie, void (*callback)(dev_info_t *dip,
3824     ddi_eventcookie_t cookie, void *arg, void *bus_impldata),
3825     void *arg, ddi_callback_id_t *cb_id)
3826 {
3827 	IBTF_DPRINTF_L4("ibnex",
3828 	    "ibnex_add_eventcall(%p, %p, 0x%X, %p, %p, %p)",
3829 	    dip, rdip, cookie, callback, arg, cb_id);
3830 
3831 	return (ndi_event_add_callback(ibnex.ibnex_ndi_event_hdl,
3832 	    rdip, cookie, callback, arg, NDI_SLEEP, cb_id));
3833 }
3834 
3835 static int
3836 ibnex_remove_eventcall(dev_info_t *dip, ddi_callback_id_t cb_id)
3837 {
3838 	IBTF_DPRINTF_L4("ibnex", "ibnex_remove_eventcall(%p, 0x%X)",
3839 	    dip, cb_id);
3840 
3841 	return (ndi_event_remove_callback(ibnex.ibnex_ndi_event_hdl,
3842 	    cb_id));
3843 }
3844 
3845 static int
3846 ibnex_post_event(dev_info_t *dip, dev_info_t *rdip,
3847     ddi_eventcookie_t cookie, void *bus_impldata)
3848 {
3849 	IBTF_DPRINTF_L4("ibnex", "ibnex_post_event(%p, %p, 0x%X, %p)",
3850 	    dip, rdip, cookie, bus_impldata);
3851 
3852 	return (ndi_event_run_callbacks(ibnex.ibnex_ndi_event_hdl, rdip,
3853 	    cookie, bus_impldata));
3854 }
3855 
3856 /*
3857  * ibnex_reprobe_ioc_dev()
3858  *
3859  * This could be called as a result of ibt_reprobe_dev request or
3860  * cfgadm command. The function is called from a taskq in case of
3861  * ibt_reprobe_dev and from user context for cfgadm command.
3862  *
3863  * This function reprobes the properties for one IOC dip.
3864  *
3865  * node_reprobe_state should be set before calling this function.
3866  */
3867 void
3868 ibnex_reprobe_ioc_dev(void *arg)
3869 {
3870 	dev_info_t	*dip = (dev_info_t *)arg;
3871 	ibnex_node_data_t	*node_data;
3872 	ibnex_ioc_node_t	*ioc_data;
3873 	ibdm_ioc_info_t		*ioc_info;
3874 
3875 	/* ASSERT(NO_LOCKS_HELD); */
3876 	ASSERT(dip != NULL);
3877 
3878 	node_data = ddi_get_parent_data(dip);
3879 	ASSERT(node_data);
3880 
3881 	if (node_data->node_dip == NULL) {
3882 		IBTF_DPRINTF_L4("ibnex", "reprobe for unconfigured dip");
3883 		mutex_enter(&ibnex.ibnex_mutex);
3884 		ibnex_wakeup_reprobe_ioc(node_data, 0);
3885 		mutex_exit(&ibnex.ibnex_mutex);
3886 		return;
3887 	}
3888 	ioc_data = &(node_data->node_data.ioc_node);
3889 
3890 	/* Reprobe the IOC */
3891 	ioc_info = ibdm_ibnex_probe_ioc(ioc_data->iou_guid, ioc_data->ioc_guid,
3892 	    1);
3893 	if (ioc_info == NULL) {
3894 		IBTF_DPRINTF_L2("ibnex", "Null ioc_info from reprobe");
3895 		mutex_enter(&ibnex.ibnex_mutex);
3896 		ibnex_wakeup_reprobe_ioc(node_data, 1);
3897 		mutex_exit(&ibnex.ibnex_mutex);
3898 		return;
3899 	}
3900 
3901 	mutex_enter(&ibnex.ibnex_mutex);
3902 	if (node_data->node_dip)
3903 		ibnex_update_prop(node_data, ioc_info);
3904 	ibnex_wakeup_reprobe_ioc(node_data, 0);
3905 	mutex_exit(&ibnex.ibnex_mutex);
3906 
3907 	ibdm_ibnex_free_ioc_list(ioc_info);
3908 }
3909 
3910 /*
3911  * ibnex_reprobe_all()
3912  *
3913  * This could be called as a result of cfgadm command. The function
3914  * is called from user context.
3915  *
3916  * This function reprobes the properties for all IOC dips.
3917  *
3918  * ibnex_reprobe_state should be set before calling this function.
3919  */
3920 void
3921 ibnex_reprobe_ioc_all()
3922 {
3923 	ibnex_node_data_t	*node_data;
3924 	ibdm_ioc_info_t		*ioc_info_list, *ioc;
3925 
3926 	/* ASSERT(NO_LOCKS_HELD); */
3927 
3928 	/* Sweep the fabric */
3929 	ioc = ioc_info_list = ibdm_ibnex_get_ioc_list(
3930 	    IBDM_IBNEX_REPROBE_ALL);
3931 	if (ioc_info_list == NULL) {
3932 		mutex_enter(&ibnex.ibnex_mutex);
3933 		ibnex_wakeup_reprobe_all();
3934 		mutex_exit(&ibnex.ibnex_mutex);
3935 		return;
3936 	}
3937 
3938 	mutex_enter(&ibnex.ibnex_mutex);
3939 	while (ioc_info_list) {
3940 		if ((node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
3941 		    ioc_info_list, 0, 0)) != NULL &&
3942 		    node_data->node_dip != NULL) {
3943 			ibnex_update_prop(node_data, ioc_info_list);
3944 		}
3945 		ioc_info_list = ioc_info_list->ioc_next;
3946 	}
3947 	ibnex_wakeup_reprobe_all();
3948 	mutex_exit(&ibnex.ibnex_mutex);
3949 
3950 	ibdm_ibnex_free_ioc_list(ioc);
3951 }
3952 
3953 /*
3954  * Update the properties, if it has modified and notify IBTF client.
3955  */
3956 static void
3957 ibnex_update_prop(ibnex_node_data_t *node_data, ibdm_ioc_info_t *ioc_info)
3958 {
3959 	ibt_prop_update_payload_t	evt_data;
3960 	dev_info_t	*dip = node_data->node_dip;
3961 	ddi_eventcookie_t	evt_cookie;
3962 	ibnex_ioc_node_t *ioc;
3963 
3964 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3965 
3966 	ASSERT(dip != NULL);
3967 
3968 	ioc = &node_data->node_data.ioc_node;
3969 
3970 	evt_data = ioc_info->ioc_info_updated;
3971 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
3972 
3973 	/*
3974 	 * For a disconnected IOC :
3975 	 *	Store the ioc_profile for supplying cfgadm info
3976 	 *	ibdm maintains no info of disconnected IOC
3977 	 *
3978 	 * For reconnected IOC :
3979 	 *	ibdm has info of previous service entries
3980 	 *	ioc_profile maintained by ibnexus is used to
3981 	 *	update ib_srv_prop_updated.
3982 	 *	Free the ibnex maintained ioc_profile
3983 	 */
3984 	if (ioc_info->ioc_nportgids == 0) {
3985 		IBTF_DPRINTF_L4("ibnex",
3986 		    "\tupdate_prop:  IOC disconnected");
3987 		ioc->ioc_profile = (ib_dm_ioc_ctrl_profile_t *)kmem_zalloc(
3988 		    sizeof (ib_dm_ioc_ctrl_profile_t), KM_SLEEP);
3989 		bcopy(&ioc_info->ioc_profile, ioc->ioc_profile,
3990 		    sizeof (ib_dm_ioc_ctrl_profile_t));
3991 
3992 		ibnex.ibnex_num_disconnect_iocs++;
3993 	} else if (ioc_info->ioc_nportgids != 0 && ioc->ioc_ngids == 0 &&
3994 	    ioc->ioc_profile != NULL) {
3995 		IBTF_DPRINTF_L4("ibnex",
3996 		    "\tupdate_prop: IOC reconnected");
3997 		if (ioc->ioc_profile->ioc_service_entries !=
3998 		    ioc_info->ioc_profile.ioc_service_entries)
3999 			evt_data.ib_srv_prop_updated = 1;
4000 
4001 		ibnex.ibnex_num_disconnect_iocs--;
4002 		kmem_free(ioc->ioc_profile, sizeof (ib_dm_ioc_ctrl_profile_t));
4003 		ioc->ioc_profile = NULL;
4004 	}
4005 
4006 	/* Update the properties that have changed */
4007 	mutex_exit(&ibnex.ibnex_mutex);
4008 	if (evt_data.ib_gid_prop_updated) {
4009 		if (ibnex_create_ioc_portgid_prop(dip, ioc_info) !=
4010 		    IBNEX_SUCCESS) {
4011 			mutex_enter(&ibnex.ibnex_mutex);
4012 			return;
4013 		}
4014 	}
4015 	if (evt_data.ib_srv_prop_updated) {
4016 		if (ioc_info->ioc_profile.ioc_service_entries != 0 &&
4017 		    (ibnex_create_ioc_srv_props(dip, ioc_info) !=
4018 		    IBNEX_SUCCESS)) {
4019 			mutex_enter(&ibnex.ibnex_mutex);
4020 			return;
4021 		} else if (ioc_info->ioc_profile.ioc_service_entries == 0) {
4022 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
4023 			    "service-id");
4024 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
4025 			    "service-name");
4026 		}
4027 	}
4028 	mutex_enter(&ibnex.ibnex_mutex);
4029 	ioc->ioc_ngids = ioc_info->ioc_nportgids;
4030 
4031 	/*
4032 	 * Post an event if :
4033 	 *	1. Properites have changed or NOTIFY_ALWAYS is set.
4034 	 *	2. child dip is configured and a valid cookie for
4035 	 *	   IB_PROP_UPDATE_EVENT.
4036 	 */
4037 	if ((evt_data.ib_prop_updated != 0 ||
4038 	    (node_data->node_reprobe_state &
4039 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)) &&
4040 	    ((node_data->node_state == IBNEX_CFGADM_CONFIGURED) &&
4041 	    (evt_cookie != NULL))) {
4042 			mutex_exit(&ibnex.ibnex_mutex);
4043 
4044 			if (ndi_post_event(ibnex.ibnex_dip, dip,
4045 			    evt_cookie, &evt_data) != NDI_SUCCESS)
4046 				IBTF_DPRINTF_L2("ibnex",
4047 				    "\tndi_post_event failed\n");
4048 
4049 			mutex_enter(&ibnex.ibnex_mutex);
4050 	}
4051 
4052 	/*
4053 	 * Cleanup node_reprobe_state, for ibt_reprobe_dev
4054 	 * requests, when reprobe all / node reprobe is in
4055 	 * progress. ibnex_reprobe_ioc_dev is not called
4056 	 * in this case.
4057 	 */
4058 	if (node_data->node_reprobe_state ==
4059 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)
4060 		ibnex_wakeup_reprobe_ioc(node_data, 0);
4061 }
4062 
4063 static ibnex_rval_t
4064 ibnex_unique_svcname(char *svcname)
4065 {
4066 	int i;
4067 
4068 	/* Check Port Services */
4069 	for (i = 0; i < ibnex.ibnex_num_comm_svcs; i++)
4070 		if (ibnex.ibnex_comm_svc_names[i] && strncmp(svcname,
4071 		    ibnex.ibnex_comm_svc_names[i], 4) == 0)
4072 			return (IBNEX_FAILURE);
4073 
4074 	/* Check VPPA Services */
4075 	for (i = 0; i < ibnex.ibnex_nvppa_comm_svcs; i++)
4076 		if (ibnex.ibnex_vppa_comm_svc_names[i] && strncmp(svcname,
4077 		    ibnex.ibnex_vppa_comm_svc_names[i], 4) == 0)
4078 			return (IBNEX_FAILURE);
4079 
4080 	/* Check HCA_SVC Services */
4081 	for (i = 0; i < ibnex.ibnex_nhcasvc_comm_svcs; i++)
4082 		if (ibnex.ibnex_hcasvc_comm_svc_names[i] && strncmp(svcname,
4083 		    ibnex.ibnex_hcasvc_comm_svc_names[i], 4) == 0)
4084 			return (IBNEX_FAILURE);
4085 
4086 	return (IBNEX_SUCCESS);
4087 }
4088 
4089 static void
4090 ibnex_handle_reprobe_dev(void *arg)
4091 {
4092 	dev_info_t	*dip = (dev_info_t *)arg;
4093 	ibnex_node_data_t	*node_data;
4094 
4095 	ASSERT(dip != NULL);
4096 	node_data = ddi_get_parent_data(dip);
4097 	ASSERT(node_data);
4098 
4099 	/*
4100 	 * Return success if:
4101 	 *	1. Reprobe for all nodes are in progress
4102 	 *	2. Reprobe for this node is in progress.
4103 	 * The reprobe in progress will complete eventually and
4104 	 * update the properties, if required.
4105 	 */
4106 	mutex_enter(&ibnex.ibnex_mutex);
4107 	if (ibnex.ibnex_reprobe_state != 0 ||
4108 	    node_data->node_reprobe_state != 0) {
4109 		/*
4110 		 * Setting NOTIFY_ALWAYS to ensure that
4111 		 * DDI event is delivered always for
4112 		 * ibt_reprobe_dev
4113 		 */
4114 		node_data->node_reprobe_state |=
4115 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
4116 		mutex_exit(&ibnex.ibnex_mutex);
4117 		return;
4118 	}
4119 	node_data->node_reprobe_state =
4120 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
4121 	mutex_exit(&ibnex.ibnex_mutex);
4122 	ibnex_reprobe_ioc_dev(arg);
4123 }
4124 
4125 
4126 /*
4127  * MPxIO pathmangement routines. Currently IB nexus does not support
4128  * any kind of pathmangement. So, just return success to make MPxIO
4129  * framework happy.
4130  */
4131 /*ARGSUSED*/
4132 static int
4133 ib_vhci_pi_init(dev_info_t *vdip, mdi_pathinfo_t *pip, int flag)
4134 {
4135 	IBTF_DPRINTF_L4("ibnex", "\tpi_init: dip %p pip %p", vdip, pip);
4136 	return (MDI_SUCCESS);
4137 }
4138 
4139 
4140 /*ARGSUSED*/
4141 static int
4142 ib_vhci_pi_uninit(dev_info_t *vdip, mdi_pathinfo_t *pip, int flag)
4143 {
4144 	dev_info_t *cdip;
4145 	ibnex_node_data_t *node_data;
4146 	int clnt_num_pi;
4147 	IBTF_DPRINTF_L4("ibnex", "\tpi_uninit: dip %p pip %p", vdip, pip);
4148 
4149 	if (pip == NULL)
4150 		return (MDI_FAILURE);
4151 	/*
4152 	 * Get the Client dev_info from the pathinfo.
4153 	 */
4154 	cdip = mdi_pi_get_client(pip);
4155 	if (cdip == NULL)
4156 		return (MDI_FAILURE);
4157 
4158 	/*
4159 	 * How many PIs do we have from this cdip ?
4160 	 */
4161 	clnt_num_pi = mdi_client_get_path_count(cdip);
4162 
4163 	/*
4164 	 * If this is the last PI that is being free'd ( called from
4165 	 * mdi_pi_free) we have to clean up the node data for the cdip since
4166 	 * the client would have been detached by mdi_devi_offline.
4167 	 */
4168 	if (clnt_num_pi == 1) {
4169 		for (node_data = ibnex.ibnex_ioc_node_head;
4170 		    node_data; node_data = node_data->node_next) {
4171 			if (node_data->node_dip == cdip) {
4172 				node_data->node_dip = NULL;
4173 				node_data->node_state =
4174 				    IBNEX_CFGADM_UNCONFIGURED;
4175 				return (MDI_SUCCESS);
4176 			}
4177 		}
4178 		for (node_data = ibnex.ibnex_pseudo_node_head;
4179 		    node_data; node_data = node_data->node_next) {
4180 			if (node_data->node_dip == cdip) {
4181 				node_data->node_dip = NULL;
4182 				node_data->node_state =
4183 				    IBNEX_CFGADM_UNCONFIGURED;
4184 				return (MDI_SUCCESS);
4185 			}
4186 		}
4187 	}
4188 	return (MDI_SUCCESS);
4189 }
4190 
4191 
4192 /*ARGSUSED*/
4193 static int
4194 ib_vhci_pi_state_change(dev_info_t *vdip, mdi_pathinfo_t *pip,
4195 		mdi_pathinfo_state_t state, uint32_t arg1, int arg2)
4196 {
4197 	IBTF_DPRINTF_L4("ibnex",
4198 	    "\tpi_state_change: dip %p pip %p state %x", vdip, pip, state);
4199 	return (MDI_SUCCESS);
4200 }
4201 
4202 
4203 /*ARGSUSED*/
4204 static int
4205 ib_vhci_failover(dev_info_t *dip1, dev_info_t *dip2, int arg)
4206 {
4207 	return (MDI_SUCCESS);
4208 }
4209 
4210 
4211 static int
4212 ibnex_bus_power(dev_info_t *parent, void *impl_arg,
4213     pm_bus_power_op_t op, void *arg, void *result)
4214 {
4215 
4216 	int ret = DDI_SUCCESS;
4217 
4218 	IBTF_DPRINTF_L4("ibnex", "\tbus_power: begin: op = %d", op);
4219 
4220 	/*
4221 	 * Generic processing in MPxIO framework
4222 	 */
4223 	ret = mdi_bus_power(parent, impl_arg, op, arg, result);
4224 
4225 	switch (ret) {
4226 	case MDI_SUCCESS:
4227 		ret = DDI_SUCCESS;
4228 		break;
4229 	case MDI_FAILURE:
4230 		ret = DDI_FAILURE;
4231 		break;
4232 	default:
4233 		break;
4234 	}
4235 
4236 	return (ret);
4237 }
4238 
4239 
4240 /*
4241  * If enumerated as a child of IB Nexus / VHCI, call mdi_vhci_bus_config.
4242  * ndi_devi_enter is not held during this call. mdi_vhci_bus_config()
4243  * will have called ndi_busop_bus_config(), no need for the caller to call
4244  * ndi_busop_bus_config() again.
4245  *
4246  * If enumerated as a child of HCA device, this could be a case for
4247  * Sparc boot or device enumeration from PHCI, driven by MDI.
4248  * Hold parent lock (ndi_devi_enter). The caller will have to call
4249  * ndi_busop_bus_config() if this function returns SUCCESS.
4250  *
4251  * if the device name contains ":port", then it is the Sparc boot case.
4252  * Handle this as before.
4253  *
4254  * If the device name does *not* contain the ":port", then :
4255  *	1. ibdm to probe IOC
4256  *	2. Create a pathinfo only if the IOC is reachable from the parent dip.
4257  */
4258 static int
4259 ibnex_ioc_bus_config_one(dev_info_t **pdipp, uint_t flag,
4260     ddi_bus_config_op_t op, void *devname, dev_info_t **child,
4261     int *need_bus_config)
4262 {
4263 	int ret = DDI_FAILURE, circ;
4264 	dev_info_t *pdip = *pdipp;
4265 	ib_guid_t	iou_guid, ioc_guid;
4266 	char *ioc_guid_str;
4267 
4268 
4269 	*need_bus_config = 1;
4270 
4271 	if (pdip == ibnex.ibnex_dip) {
4272 		if (ibnex_devname_to_node_n_ioc_guids(
4273 		    (char *)devname, &iou_guid, &ioc_guid,
4274 		    &ioc_guid_str) != IBNEX_SUCCESS) {
4275 			return (ret);
4276 		}
4277 		ret = mdi_vhci_bus_config(pdip, flag, op, devname, child,
4278 		    ioc_guid_str);
4279 		kmem_free(ioc_guid_str, strlen(ioc_guid_str) + 1);
4280 		if (ret == MDI_SUCCESS)
4281 			*need_bus_config = 0;
4282 	} else {
4283 		mdi_devi_enter(pdip, &circ);
4284 		if (strstr((char *)devname, ":port=") != NULL) {
4285 			ret = ibnex_config_root_iocnode(pdip, devname);
4286 			ASSERT(ibnex.ibnex_dip == NULL);
4287 			*pdipp = ibnex.ibnex_dip;
4288 		} else {
4289 			ret = ibnex_config_ioc_node(devname, pdip);
4290 		}
4291 		mdi_devi_exit(pdip, circ);
4292 	}
4293 	return (ret);
4294 }
4295 
4296 static int
4297 ibnex_is_merge_node(dev_info_t *child)
4298 {
4299 	char	*node;
4300 	int	ret = IBNEX_INVALID_NODE;
4301 
4302 	if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child,
4303 	    DDI_PROP_DONTPASS, "ib-node-type", &node) !=
4304 	    DDI_PROP_SUCCESS) {
4305 		return (IBNEX_FAILURE);
4306 	}
4307 
4308 	if (node != NULL && *node != 0) {
4309 		if (strcmp(node, "merge") == 0)
4310 			ret = IBNEX_SUCCESS;
4311 		else {
4312 			IBTF_DPRINTF_L4("ibnex",
4313 			    "\tis_merge_node: ib-node-type = %s", node);
4314 		}
4315 	}
4316 
4317 	ddi_prop_free(node);
4318 	return (ret);
4319 }
4320 
4321 /*
4322  * Checks if the dn_head for the driver has already
4323  * initialized by the prom tree.
4324  */
4325 void
4326 ibnex_hw_in_dev_tree(char *driver_name)
4327 {
4328 	major_t	major;
4329 
4330 	IBTF_DPRINTF_L4("ibnex", "\thw_in_dev_tree(%s)", driver_name);
4331 
4332 	if (devnamesp == NULL)
4333 		return;
4334 
4335 	major = ddi_name_to_major(driver_name);
4336 	if (major == -1)
4337 		return;
4338 
4339 	if (devnamesp[major].dn_head != (dev_info_t *)NULL)
4340 		ibnex_hw_status = IBNEX_HW_IN_DEVTREE;
4341 }
4342 
4343 int
4344 ibnex_ioc_initnode_all_pi(ibdm_ioc_info_t *ioc_info)
4345 {
4346 	ibdm_hca_list_t	*hca_list;
4347 	dev_info_t	*hca_dip;
4348 	int	rc = IBNEX_FAILURE;
4349 
4350 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
4351 	/*
4352 	 * We return failure even if we fail for all HCAs
4353 	 */
4354 	for (hca_list = ioc_info->ioc_hca_list; hca_list;
4355 	    hca_list = hca_list->hl_next) {
4356 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
4357 		if (ibnex_ioc_config_from_pdip(ioc_info, hca_dip, 1) ==
4358 		    IBNEX_SUCCESS)
4359 			rc = IBNEX_SUCCESS;
4360 	}
4361 	return (rc);
4362 }
4363 
4364 static int
4365 ibnex_ioc_config_from_pdip(ibdm_ioc_info_t *ioc_info, dev_info_t *pdip,
4366     int pdip_reachable_checked)
4367 {
4368 	ibnex_node_data_t	*node_data;
4369 	int			create_pdip = 0;
4370 	int			rc = IBNEX_SUCCESS;
4371 
4372 
4373 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
4374 	IBTF_DPRINTF_L4("ibnex",
4375 	    "/tioc_config_from_pdip(%p, %p, %d)", ioc_info, pdip,
4376 	    pdip_reachable_checked);
4377 
4378 	if (pdip_reachable_checked == 0) {
4379 		if (ibnex_ioc_pi_reachable(ioc_info, pdip) == IBNEX_FAILURE) {
4380 			IBTF_DPRINTF_L4("ibnex",
4381 			    "/tioc_config_from_pdip: ioc %p not reachable"
4382 			    "from %p", ioc_info, pdip);
4383 			return (IBNEX_FAILURE);
4384 		}
4385 	}
4386 
4387 	node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
4388 	    (void *)ioc_info, 0, 0);
4389 
4390 	if (node_data && node_data->node_ap_state ==
4391 	    IBNEX_NODE_AP_UNCONFIGURED) {
4392 		IBTF_DPRINTF_L4("ibnex",
4393 		    "\tioc_config_from_pdip: Unconfigured node");
4394 		return (IBNEX_FAILURE);
4395 	}
4396 
4397 
4398 	if (node_data == NULL) {
4399 		ibnex_ioc_node_t	*ioc;
4400 
4401 		create_pdip = 1;
4402 
4403 		node_data = ibnex_init_child_nodedata(IBNEX_IOC_NODE,
4404 		    ioc_info, 0, 0);
4405 		ASSERT(node_data);
4406 		ioc = &node_data->node_data.ioc_node;
4407 		(void) snprintf(ioc->ioc_guid_str, IBNEX_IOC_GUID_LEN,
4408 		    "%llX",
4409 		    (longlong_t)ioc_info->ioc_profile.ioc_guid);
4410 		(void) snprintf(ioc->ioc_phci_guid, IBNEX_PHCI_GUID_LEN,
4411 		    "%llX,%llX",
4412 		    (longlong_t)ioc_info->ioc_profile.ioc_guid,
4413 		    (longlong_t)ioc_info->ioc_iou_guid);
4414 	} else if (ibnex_ioc_pi_exists(node_data, pdip) == IBNEX_FAILURE) {
4415 		create_pdip = 1;
4416 	}
4417 
4418 	if (create_pdip) {
4419 		rc = ibnex_ioc_initnode_pdip(node_data, ioc_info, pdip);
4420 	}
4421 
4422 	IBTF_DPRINTF_L4("ibnex", "\tioc_config_from_pdip ret %x",
4423 	    rc);
4424 	return (rc);
4425 }
4426 
4427 /*
4428  * This function checks if a pathinfo has already been created
4429  * for the HCA parent. The function returns SUCCESS if a pathinfo
4430  * has already been created, FAILURE if not.
4431  */
4432 static int
4433 ibnex_ioc_pi_exists(ibnex_node_data_t *node_data, dev_info_t *parent)
4434 {
4435 	int	rc;
4436 	ibnex_ioc_node_t	*ioc;
4437 
4438 	ioc = &node_data->node_data.ioc_node;
4439 	if (mdi_pi_find(parent, (char *)ioc->ioc_guid_str,
4440 	    (char *)ioc->ioc_phci_guid) != NULL)
4441 		rc = IBNEX_SUCCESS;
4442 	else
4443 		rc = IBNEX_FAILURE;
4444 
4445 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_created- client_guid %s, "
4446 	    "phci_guid %s, parent %p, rc %x",
4447 	    ioc->ioc_guid_str, ioc->ioc_phci_guid, parent, rc);
4448 	return (rc);
4449 }
4450 
4451 static int
4452 ibnex_ioc_pi_reachable(ibdm_ioc_info_t *ioc_info, dev_info_t *pdip)
4453 {
4454 	ibdm_hca_list_t	*hca_list;
4455 	dev_info_t	*hca_dip;
4456 
4457 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_reachable(%p, %p)",
4458 	    ioc_info, pdip);
4459 	for (hca_list = ioc_info->ioc_hca_list; hca_list;
4460 	    hca_list = hca_list->hl_next) {
4461 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
4462 		if (hca_dip == pdip) {
4463 			IBTF_DPRINTF_L4("ibnex",
4464 			    "\tioc_pi_reachable FAILURE");
4465 			return (IBNEX_SUCCESS);
4466 		}
4467 	}
4468 
4469 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_reachable FAILURE");
4470 	return (IBNEX_FAILURE);
4471 }
4472