xref: /titanic_41/usr/src/uts/common/io/ib/ibnex/ibnex.c (revision aa2aa9a662539940ddbc8610da5a3a874ebd7503)
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 2009 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 	cv_init(&ibnex.ibnex_ioc_list_cv, NULL, CV_DRIVER, NULL);
411 	if ((error = mod_install(&modlinkage)) != 0) {
412 		IBTF_DPRINTF_L2("ibnex", "\t_init: mod_install failed");
413 		mutex_destroy(&ibnex.ibnex_mutex);
414 		cv_destroy(&ibnex.ibnex_reprobe_cv);
415 		cv_destroy(&ibnex.ibnex_ioc_list_cv);
416 	} else {
417 		ibdm_ibnex_register_callback(ibnex_dm_callback);
418 		ibtl_ibnex_register_callback(ibnex_ibtl_callback);
419 	}
420 	return (error);
421 }
422 
423 
424 /*
425  * _fini
426  *	Prepares a module for unloading.
427  */
428 int
429 _fini(void)
430 {
431 	int	error;
432 
433 	IBTF_DPRINTF_L4("ibnex", "\t_fini");
434 	if ((error = mod_remove(&modlinkage)) != 0) {
435 		return (error);
436 	}
437 	ibdm_ibnex_unregister_callback();
438 	ibtl_ibnex_unregister_callback();
439 	mutex_destroy(&ibnex.ibnex_mutex);
440 	cv_destroy(&ibnex.ibnex_reprobe_cv);
441 	cv_destroy(&ibnex.ibnex_ioc_list_cv);
442 	return (0);
443 }
444 
445 
446 /*
447  * _info
448  *	Returns information about loadable module.
449  */
450 int
451 _info(struct modinfo *modinfop)
452 {
453 	IBTF_DPRINTF_L4("ibnex", "\t_info");
454 	return (mod_info(&modlinkage, modinfop));
455 }
456 
457 
458 /*
459  * ibnex_attach
460  *	Configure and attach an instance of the IB Nexus driver
461  *	Only one instance of IB Nexus is supported
462  *	Create a minor node for cfgadm purpose
463  *	Initialize communication services
464  *	Register callback with IBDM
465  *	Register callback with IBTL
466  */
467 static int
468 ibnex_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
469 {
470 	int		i;
471 	int		instance = ddi_get_instance(dip);
472 
473 	IBTF_DPRINTF_L4("ibnex", "\tattach: device = %p cmd = %x)", dip, cmd);
474 
475 	switch (cmd) {
476 	case DDI_ATTACH:
477 		break;
478 	case DDI_RESUME:
479 		IBTF_DPRINTF_L4("ibnex", "\tattach: RESUME");
480 		return (DDI_SUCCESS);
481 	default:
482 		return (DDI_FAILURE);
483 	}
484 
485 	/* Fail attach for more than one instance */
486 	mutex_enter(&ibnex.ibnex_mutex);
487 	if (ibnex.ibnex_dip != NULL) {
488 		mutex_exit(&ibnex.ibnex_mutex);
489 		return (DDI_FAILURE);
490 	}
491 	mutex_exit(&ibnex.ibnex_mutex);
492 
493 	/* Register with MPxIO framework */
494 
495 	if (mdi_vhci_register(MDI_HCI_CLASS_IB, dip, &ibnex_vhci_ops, 0)
496 	    != MDI_SUCCESS) {
497 		IBTF_DPRINTF_L2("ibnex",
498 		    "\tattach: mdi_vhci_register() failed");
499 		return (DDI_FAILURE);
500 	}
501 
502 
503 	/*
504 	 * Create the "fabric" devctl minor-node for IB DR support.
505 	 * The minor number for the "devctl" node is in the same format
506 	 * as the AP minor nodes.
507 	 */
508 	if (ddi_create_minor_node(dip, IBNEX_FABRIC, S_IFCHR, instance,
509 	    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
510 		IBTF_DPRINTF_L2("ibnex",
511 		    "\tattach: failed to create fabric minornode");
512 		(void) mdi_vhci_unregister(dip, 0);
513 		return (DDI_FAILURE);
514 	}
515 
516 	/*
517 	 * Create "devctl" minor node for general ioctl interface to the
518 	 * ib nexus.
519 	 */
520 	if (ddi_create_minor_node(dip, "devctl", S_IFCHR, instance,
521 	    DDI_NT_IB_NEXUS, 0) != DDI_SUCCESS) {
522 		IBTF_DPRINTF_L2("ibnex",
523 		    "\tattach: failed to create devctl minornode");
524 		(void) ddi_remove_minor_node(dip, NULL);
525 		(void) mdi_vhci_unregister(dip, 0);
526 		return (DDI_FAILURE);
527 	}
528 
529 	/*
530 	 * Set pm-want-child-notification property for
531 	 * power management of the phci and client
532 	 */
533 	if (ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP,
534 	    "pm-want-child-notification?", NULL, NULL) != DDI_PROP_SUCCESS) {
535 		IBTF_DPRINTF_L2("ibnex",
536 		    "_attach: create pm-want-child-notification failed");
537 		(void) ddi_remove_minor_node(dip, NULL);
538 		(void) mdi_vhci_unregister(dip, 0);
539 		return (DDI_FAILURE);
540 	}
541 
542 	mutex_enter(&ibnex.ibnex_mutex);
543 	ibnex.ibnex_dip  = dip;
544 	mutex_exit(&ibnex.ibnex_mutex);
545 
546 	/*
547 	 * Event Handling: Definition and Binding.
548 	 */
549 	if (ndi_event_alloc_hdl(dip, 0, &ibnex.ibnex_ndi_event_hdl,
550 	    NDI_SLEEP) != NDI_SUCCESS) {
551 		(void) ddi_remove_minor_node(dip, NULL);
552 		IBTF_DPRINTF_L2("ibnex",
553 		    "_attach: ndi_event_alloc_hdl failed");
554 		(void) mdi_vhci_unregister(dip, 0);
555 		return (DDI_FAILURE);
556 	}
557 	if (ndi_event_bind_set(ibnex.ibnex_ndi_event_hdl, &ib_ndi_events,
558 	    NDI_SLEEP) != NDI_SUCCESS) {
559 		(void) ddi_remove_minor_node(dip, NULL);
560 		(void) ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl);
561 		IBTF_DPRINTF_L2("ibnex",
562 		    "_attach: ndi_event_bind_set failed");
563 		(void) mdi_vhci_unregister(dip, 0);
564 		return (DDI_FAILURE);
565 	}
566 
567 	for (i = 0; i < N_IBNEX_PROPS; i++) {
568 		if (ibnex_comm_svc_init(ibnex_properties[i].name,
569 		    ibnex_properties[i].type) != IBNEX_SUCCESS) {
570 			ibnex_comm_svc_fini();
571 			(void) ndi_event_unbind_set(ibnex.ibnex_ndi_event_hdl,
572 			    &ib_ndi_events, NDI_SLEEP);
573 			(void) ddi_remove_minor_node(dip, NULL);
574 			(void) ndi_event_free_hdl(
575 			    ibnex.ibnex_ndi_event_hdl);
576 			ibnex.ibnex_ndi_event_hdl = NULL;
577 			IBTF_DPRINTF_L2("ibnex", "_attach: ibnex_comm_svc_init"
578 			    " failed %s", ibnex_properties[i].name);
579 			(void) mdi_vhci_unregister(dip, 0);
580 			return (DDI_FAILURE);
581 		}
582 	}
583 
584 	/*
585 	 * before anything else comes up:
586 	 * Initialize the internal list of pseudo device nodes by
587 	 * getting all pseudo children of "ib" and processing them.
588 	 */
589 	ibnex_pseudo_initnodes();
590 
591 	return (DDI_SUCCESS);
592 }
593 
594 
595 /*
596  * ibnex_getinfo()
597  * Given the device number, return the devinfo pointer or the
598  * instance number.
599  * Note: always succeed DDI_INFO_DEVT2INSTANCE, even before attach.
600  */
601 
602 /*ARGSUSED*/
603 static int
604 ibnex_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
605 {
606 	int ret = DDI_SUCCESS;
607 
608 	IBTF_DPRINTF_L4("ibnex", "\tgetinfo: Begin");
609 	switch (cmd) {
610 	case DDI_INFO_DEVT2DEVINFO:
611 		if (ibnex.ibnex_dip != NULL)
612 			*result = ibnex.ibnex_dip;
613 		else {
614 			*result = NULL;
615 			ret = DDI_FAILURE;
616 		}
617 		break;
618 
619 	case DDI_INFO_DEVT2INSTANCE:
620 		*result = 0;
621 		break;
622 
623 	default:
624 		ret = DDI_FAILURE;
625 	}
626 	return (ret);
627 }
628 
629 
630 /*
631  * ibnex_detach
632  *	Unregister callback with the IBDM
633  *	Unregister callback with the IBTL
634  *	Uninitialize the communication entries
635  *	Remove all the minor nodes created by this instance
636  */
637 static int
638 ibnex_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
639 {
640 
641 	IBTF_DPRINTF_L4("ibnex", "\tdetach: dip = %p cmd = %x)", dip, cmd);
642 
643 	switch (cmd) {
644 
645 	case DDI_DETACH:
646 		break;
647 	case DDI_SUSPEND:
648 		IBTF_DPRINTF_L4("ibnex", "\t_detach: Suspend");
649 		return (DDI_SUCCESS);
650 	default:
651 		return (DDI_FAILURE);
652 	}
653 
654 	mutex_enter(&ibnex.ibnex_mutex);
655 	if (ibt_hw_is_present()) {
656 		IBTF_DPRINTF_L2("ibnex",
657 		    "\tdetach: IB HW is present ");
658 		mutex_exit(&ibnex.ibnex_mutex);
659 		return (DDI_FAILURE);
660 	}
661 	if (ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl)) {
662 		IBTF_DPRINTF_L2("ibnex",
663 		    "\tdetach: ndi_event_free_hdl() failed");
664 		mutex_exit(&ibnex.ibnex_mutex);
665 		return (DDI_FAILURE);
666 	}
667 	ibnex.ibnex_ndi_event_hdl = NULL;
668 	ibnex.ibnex_prop_update_evt_cookie = NULL;
669 
670 	ibnex_pseudo_node_cleanup();
671 	ibnex_comm_svc_fini();
672 	ibnex_ioc_node_cleanup();
673 
674 	(void) ddi_remove_minor_node(dip, NULL);
675 	ibnex.ibnex_dip = NULL;
676 	mutex_exit(&ibnex.ibnex_mutex);
677 	(void) mdi_vhci_unregister(dip, 0);
678 	return (DDI_SUCCESS);
679 }
680 
681 
682 /*
683  * ibnex_pseudo_node_cleanup()
684  *	This checks if all the "dips" have been deallocated (implying
685  *	that all the children have been unconfigured) first.
686  *	If not, it just returns.
687  *	If yes, then it frees up memory allocated for devi_name,
688  *	node_addr, and property list.
689  */
690 static void
691 ibnex_pseudo_node_cleanup(void)
692 {
693 	ibnex_node_data_t	*nodep =  ibnex.ibnex_pseudo_node_head;
694 	ibnex_pseudo_node_t	*pseudo;
695 
696 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup:");
697 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
698 
699 	for (; nodep; nodep = nodep->node_next)
700 		if (nodep->node_dip)
701 			return;
702 
703 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup: freeing up memory");
704 	for (nodep =  ibnex.ibnex_pseudo_node_head; nodep;
705 	    nodep = nodep->node_next) {
706 
707 		pseudo = &nodep->node_data.pseudo_node;
708 		if (pseudo->pseudo_node_addr) {
709 			kmem_free(pseudo->pseudo_node_addr,
710 			    strlen(pseudo-> pseudo_node_addr) + 1);
711 			pseudo->pseudo_node_addr = NULL;
712 		}
713 
714 		if (pseudo->pseudo_devi_name) {
715 			kmem_free(pseudo->pseudo_devi_name,
716 			    strlen(pseudo-> pseudo_devi_name) + 1);
717 			pseudo->pseudo_devi_name = NULL;
718 		}
719 
720 		if (pseudo->pseudo_unit_addr) {
721 			kmem_free(pseudo->pseudo_unit_addr,
722 			    pseudo->pseudo_unit_addr_len);
723 		}
724 	}
725 }
726 
727 
728 /*
729  * This functions wakes up any reprobe requests waiting for completion
730  * of reprobe of this IOC. It also send an NDI event, if  :
731  *
732  *	notify_flag is set. This is set if :
733  *		ibt_reprobe_ioc has returned with SUCCESS
734  *		IBTF client has not been notified for this node.
735  *	node_data->node_dip != NULL
736  *	node_state has IBNEX_NODE_REPROBE_NOTIFY_ALWAYS set
737  *	An NDI event cookie has been registered.
738  */
739 static void
740 ibnex_wakeup_reprobe_ioc(ibnex_node_data_t *node_data, int notify_flag)
741 {
742 	ddi_eventcookie_t	evt_cookie;
743 
744 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
745 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
746 
747 	if ((ibnex.ibnex_reprobe_state == IBNEX_REPROBE_IOC_WAIT) ||
748 	    (node_data->node_reprobe_state != 0)) {
749 		if (notify_flag && (node_data->node_dip != NULL) &&
750 		    (node_data->node_state &
751 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS) &&
752 		    (evt_cookie != NULL)) {
753 			ibt_prop_update_payload_t	evt_data;
754 
755 			mutex_exit(&ibnex.ibnex_mutex);
756 
757 			bzero(&evt_data, sizeof (evt_data));
758 			if (ndi_post_event(ibnex.ibnex_dip,
759 			    node_data->node_dip,
760 			    evt_cookie, &evt_data) != NDI_SUCCESS)
761 				IBTF_DPRINTF_L2("ibnex",
762 				    "\tndi_post_event failed\n");
763 
764 			mutex_enter(&ibnex.ibnex_mutex);
765 		}
766 
767 		node_data->node_reprobe_state = 0;
768 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
769 	}
770 	node_data->node_reprobe_state = 0;
771 }
772 
773 /*
774  * This function wakes up any reprobe request waiting for completion
775  * of reprobe of all IOCs.
776  */
777 static void
778 ibnex_wakeup_reprobe_all()
779 {
780 	ibnex_node_data_t *ioc_node;
781 
782 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
783 
784 	/* Notify if another reprobe_all is pending */
785 	if (ibnex.ibnex_reprobe_state == IBNEX_REPROBE_ALL_WAIT) {
786 		ibnex.ibnex_reprobe_state = 0;
787 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
788 	}
789 	ibnex.ibnex_reprobe_state = 0;
790 
791 	/*
792 	 * The IOC may be hot-removed after the reprobe request.
793 	 * Reset the reprobe states for such IOCs.
794 	 */
795 	for (ioc_node = ibnex.ibnex_ioc_node_head; ioc_node;
796 	    ioc_node = ioc_node->node_next) {
797 		if (ioc_node->node_reprobe_state != 0) {
798 			ibnex_wakeup_reprobe_ioc(ioc_node, 1);
799 		}
800 	}
801 }
802 
803 /*
804  * ibnex_ibnex_callback:
805  *	IBTL_IBNEX_IBC_INIT:
806  *		Called from ibc_init() which is called from
807  *		HCA driver _init entry point
808  *		Initializes the HCA dev_ops structure with default
809  *		IB nexus structure.
810  *	IBTL_IBNEX_IBC_FINI:
811  *		Called from ibc_fini() which is called from
812  *		HCA driver _fini entry point
813  *		Un-Initializes the HCA dev_ops structure with default
814  *		IB nexus strucuture.
815  *	Returns IBT_SUCCESS
816  */
817 ibt_status_t
818 ibnex_ibtl_callback(ibtl_ibnex_cb_args_t *cb_args)
819 {
820 	int			retval = IBT_SUCCESS;
821 	struct dev_ops 		*hca_dev_ops;
822 	dev_info_t		*clnt_dip;
823 	ibnex_node_data_t	*node_data;
824 
825 	IBTF_DPRINTF_L5("ibnex", "\tibtl_callback");
826 
827 	switch (cb_args->cb_flag) {
828 	case IBTL_IBNEX_IBC_INIT:
829 		/*
830 		 * Get the devops structure of the HCA,
831 		 * and put IB nexus default busops vector in its place.
832 		 */
833 		hca_dev_ops = ((struct modldrv *)
834 		    (cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
835 		ASSERT((hca_dev_ops) && (hca_dev_ops->devo_bus_ops == NULL));
836 		hca_dev_ops->devo_bus_ops = &ibnex_ci_busops;
837 		break;
838 
839 	case IBTL_IBNEX_IBC_FINI:
840 		hca_dev_ops = ((struct modldrv *)
841 		    (cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
842 		hca_dev_ops->devo_bus_ops = NULL;
843 		break;
844 
845 	case IBTL_IBNEX_REPROBE_DEV_REQ:
846 		/* IBTL pass down request for ibt_reprobe_dev */
847 		clnt_dip = cb_args->cb_dip;
848 		ASSERT(clnt_dip);
849 
850 		node_data = ddi_get_parent_data(clnt_dip);
851 		ASSERT(node_data);
852 
853 		/* Reprobe for IOC nodes only */
854 		ASSERT(node_data->node_type == IBNEX_IOC_NODE);
855 
856 		/*
857 		 * Start the reprobe. This could sleep as it is not
858 		 * from interrupt context.
859 		 */
860 		if (taskq_dispatch(system_taskq, ibnex_handle_reprobe_dev,
861 		    clnt_dip, TQ_SLEEP) == 0) {
862 			IBTF_DPRINTF_L2("ibnex",
863 			    "ibnex_ibtl_callback: taskq_dispatch failed");
864 			mutex_enter(&ibnex.ibnex_mutex);
865 			ibnex_wakeup_reprobe_ioc(node_data, 0);
866 			mutex_exit(&ibnex.ibnex_mutex);
867 			return (IBT_INSUFF_KERNEL_RESOURCE);
868 		}
869 		return (IBT_SUCCESS);
870 	}
871 
872 	return (retval);
873 }
874 
875 
876 /*
877  * Bus-ops entry points
878  */
879 
880 /*
881  * ibnex_map_fault
882  * 	IOC drivers need not map memory. Return failure to fail any
883  *	such calls.
884  */
885 /*ARGSUSED*/
886 static int
887 ibnex_map_fault(dev_info_t *dip, dev_info_t *rdip, struct hat *hat,
888     struct seg *seg, caddr_t addr, struct devpage *dp, pfn_t pfn,
889     uint_t prot, uint_t lock)
890 {
891 	return (DDI_FAILURE);
892 }
893 
894 
895 /*
896  * ibnex_busctl
897  * 	bus_ctl bus_ops entry point
898  */
899 /*ARGSUSED*/
900 static int
901 ibnex_busctl(dev_info_t *dip, dev_info_t *rdip,
902     ddi_ctl_enum_t ctlop, void *arg, void *result)
903 {
904 	dev_info_t		*child_dip;
905 
906 	IBTF_DPRINTF_L4("ibnex",
907 	    "\tbusctl: dip = %p, rdip = %p, ctlop = %x,", dip, rdip, ctlop);
908 	IBTF_DPRINTF_L4("ibnex", "\tbusctl: targ = %p, result %p", arg, result);
909 
910 	switch (ctlop) {
911 	case DDI_CTLOPS_REPORTDEV:
912 		if (rdip == NULL) {
913 			return (DDI_FAILURE);
914 		}
915 
916 		/* Log the relevant details of dip to sysbuf */
917 		cmn_err(CE_CONT, "?IB device: %s@%s, %s%d\n",
918 		    ddi_node_name(rdip), ddi_get_name_addr(rdip),
919 		    ddi_driver_name(rdip), ddi_get_instance(rdip));
920 
921 		return (DDI_SUCCESS);
922 
923 	case DDI_CTLOPS_INITCHILD:
924 		child_dip = (dev_info_t *)arg;
925 		return (ibnex_init_child(child_dip));
926 
927 	case DDI_CTLOPS_UNINITCHILD:
928 		child_dip = (dev_info_t *)arg;
929 		ddi_set_name_addr(child_dip, NULL);
930 		return (DDI_SUCCESS);
931 
932 	case DDI_CTLOPS_ATTACH:
933 	case DDI_CTLOPS_DETACH:
934 	case DDI_CTLOPS_POWER :
935 		return (DDI_SUCCESS);
936 
937 	case DDI_CTLOPS_SIDDEV:
938 		/*
939 		 * Return DDI_SUCCESS for IOC/PORT/VPPA nodes and
940 		 * DDI_FAILURE for the nodes enumerated by a Pseudo file.
941 		 */
942 		return (ndi_dev_is_persistent_node(rdip) ?
943 		    DDI_SUCCESS : DDI_FAILURE);
944 
945 
946 	case DDI_CTLOPS_IOMIN:
947 		/*
948 		 * Return DDI_SUCCESS, so that consistent buf alloc
949 		 * gets the default DMA IO minimum for the platform
950 		 */
951 		return (DDI_SUCCESS);
952 
953 	/*
954 	 * These ops correspond to functions that "shouldn't" be
955 	 * called by IB Nexus driver.
956 	 */
957 	case DDI_CTLOPS_DMAPMAPC:
958 	case DDI_CTLOPS_REPORTINT:
959 	case DDI_CTLOPS_REGSIZE:
960 	case DDI_CTLOPS_NREGS:
961 	case DDI_CTLOPS_SLAVEONLY:
962 	case DDI_CTLOPS_AFFINITY:
963 	case DDI_CTLOPS_POKE:
964 	case DDI_CTLOPS_PEEK:
965 		IBTF_DPRINTF_L2("ibnex",
966 		    "%s%d: invalid op (%d) from %s inst%d",
967 		    ddi_get_name(dip), ddi_get_instance(dip),
968 		    ctlop, ddi_get_name(rdip), ddi_get_instance(rdip));
969 		return (DDI_FAILURE);
970 
971 	/*
972 	 * Everything else (PTOB/BTOP/BTOPR/DVMAPAGESIZE requests) we
973 	 * pass up
974 	 */
975 	default:
976 		return (ddi_ctlops(dip, rdip, ctlop, arg, result));
977 	}
978 }
979 
980 
981 /*
982  * ibnex_init_child()
983  *
984  * Initialize a child device node. This is called for the DDI_CTLOPS_INITCHILD
985  * entry. Function returns DDI_SUCCESS,  DDI_FAILURE or DDI_NOT_WELL_FORMED.
986  */
987 static int
988 ibnex_init_child(dev_info_t *child)
989 {
990 	int			ret;
991 	char			name[MAXNAMELEN];
992 
993 	IBTF_DPRINTF_L4("ibnex", "\tinit_child: child = %p", child);
994 
995 	/* Handle Pseudo nodes of client children */
996 	if (ndi_dev_is_persistent_node(child) == 0) {
997 		/* Skip nodes without ib-node-type="merge" */
998 		if (ibnex_is_merge_node(child) != IBNEX_SUCCESS)
999 			return (DDI_FAILURE);
1000 
1001 		if (ibnex_name_pseudo_child(child, name) != DDI_SUCCESS)
1002 			return (DDI_FAILURE);
1003 
1004 		ddi_set_name_addr(child, name);
1005 		/*
1006 		 * Merge the .conf node
1007 		 */
1008 		if (ndi_merge_node(child,
1009 		    ibnex_name_child) == DDI_SUCCESS) {
1010 			ddi_set_name_addr(child, NULL);
1011 			return (DDI_FAILURE);
1012 		}
1013 		return (DDI_NOT_WELL_FORMED);
1014 
1015 	}
1016 
1017 	if ((ret = ibnex_name_child(child, name, 0)) != DDI_SUCCESS)
1018 		return (ret);
1019 
1020 	ddi_set_name_addr(child, name);
1021 
1022 	return (DDI_SUCCESS);
1023 }
1024 
1025 
1026 int
1027 ibnex_name_pseudo_child(dev_info_t *child, char *name)
1028 {
1029 	char **unit_addr;
1030 	uint_t n;
1031 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, child,
1032 	    DDI_PROP_DONTPASS, "unit-address", &unit_addr, &n) !=
1033 	    DDI_PROP_SUCCESS) {
1034 		IBTF_DPRINTF_L4("ibnex",
1035 		    "\tname_pseudo_child: cannot find unit-address in %s.conf",
1036 		    ddi_get_name(child));
1037 		return (DDI_FAILURE);
1038 	}
1039 	if (n != 1 || *unit_addr == NULL || **unit_addr == 0) {
1040 		cmn_err(CE_WARN, "unit-address property in %s.conf"
1041 		    " not well-formed", ddi_get_name(child));
1042 		ddi_prop_free(unit_addr);
1043 		return (DDI_FAILURE);
1044 	}
1045 	(void) snprintf(name, MAXNAMELEN, "%s", *unit_addr);
1046 	ddi_prop_free(unit_addr);
1047 	return (DDI_SUCCESS);
1048 }
1049 
1050 
1051 /*ARGSUSED*/
1052 int
1053 ibnex_name_child(dev_info_t *child, char *name, int flag)
1054 {
1055 	ibnex_pseudo_node_t	*pseudo;
1056 	ibnex_node_data_t	*node_datap;
1057 	ibnex_port_node_t	*port_node;
1058 	ibnex_ioc_node_t	*ioc;
1059 
1060 	node_datap = ddi_get_parent_data(child);
1061 	if (node_datap == NULL) {
1062 		IBTF_DPRINTF_L2("ibnex", "\tname_child: Node data is NULL");
1063 		return (DDI_NOT_WELL_FORMED);
1064 	}
1065 	IBTF_DPRINTF_L4("ibnex", "\tname_sid_child: Node data %p"
1066 	    "Node type %x", node_datap, node_datap->node_type);
1067 	switch (node_datap->node_type) {
1068 	case IBNEX_PORT_COMMSVC_NODE:
1069 		port_node = &node_datap->node_data.port_node;
1070 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1071 		    port_node->port_num,
1072 		    ibnex.ibnex_comm_svc_names[port_node->port_commsvc_idx]);
1073 		break;
1074 	case IBNEX_VPPA_COMMSVC_NODE:
1075 		port_node = &node_datap->node_data.port_node;
1076 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,%x,%s",
1077 		    port_node->port_num, port_node->port_pkey, ibnex.
1078 		    ibnex_vppa_comm_svc_names[port_node->port_commsvc_idx]);
1079 		break;
1080 	case IBNEX_HCASVC_COMMSVC_NODE:
1081 		port_node = &node_datap->node_data.port_node;
1082 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1083 		    port_node->port_num,
1084 		    ibnex.ibnex_hcasvc_comm_svc_names[port_node->
1085 		    port_commsvc_idx]);
1086 		break;
1087 	case IBNEX_IOC_NODE:
1088 		ioc = &node_datap->node_data.ioc_node;
1089 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%llX,%llX",
1090 		    (longlong_t)ioc->ioc_guid, (longlong_t)ioc->iou_guid);
1091 		break;
1092 	case IBNEX_PSEUDO_NODE:
1093 		pseudo = &node_datap->node_data.pseudo_node;
1094 		(void) snprintf(name,
1095 		    IBNEX_MAX_NODEADDR_SZ, pseudo->pseudo_unit_addr);
1096 		break;
1097 	default:
1098 		IBTF_DPRINTF_L2("ibnex", "\name_child: Not well formed");
1099 		return (DDI_NOT_WELL_FORMED);
1100 	}
1101 
1102 	return (DDI_SUCCESS);
1103 }
1104 
1105 
1106 /*
1107  * ibnex_bus_config()
1108  *
1109  * BUS_CONFIG_ONE:
1110  *	Enumerate the exact instance of the driver. Use the device node name
1111  *	to locate the exact instance.
1112  *	Query IBDM to find whether the hardware exits for the instance of the
1113  *	driver. If exists, create a device node and return NDI_SUCCESS.
1114  *
1115  * BUS_CONFIG_ALL:
1116  *	Enumerate all the instances of all the possible children (seen before
1117  *	and never seen before).
1118  *
1119  * BUS_CONFIG_DRIVER:
1120  *	Enumerate all the instances of a particular driver.
1121  */
1122 static int
1123 ibnex_bus_config(dev_info_t *parent, uint_t flag,
1124     ddi_bus_config_op_t op, void *devname, dev_info_t **child)
1125 {
1126 	int			ret = IBNEX_SUCCESS, len, circ, need_bus_config;
1127 	char 			*device_name, *cname = NULL, *caddr = NULL;
1128 	char			*device_name1;
1129 	char			*srvname, nameaddr[MAXNAMELEN];
1130 	dev_info_t		*cdip, *pdip = NULL;
1131 	ibnex_node_data_t	*node_data;
1132 	ibnex_port_node_t	*port_node;
1133 	int			use_mdi_devi_locking = 0;
1134 
1135 	if (parent != ibnex.ibnex_dip) {
1136 		/*
1137 		 * This must be an HCA.In a normal case HCA is setup as a phci.
1138 		 * If an HCA is in maintenance mode, its phci is not set up
1139 		 * but the driver is attached to update the firmware. In this
1140 		 * case, do not configure the MPxIO clients.
1141 		 */
1142 		if (mdi_component_is_phci(parent, NULL) == MDI_FAILURE) {
1143 			if (op == BUS_CONFIG_ALL || op == BUS_CONFIG_DRIVER)
1144 				return (NDI_SUCCESS);
1145 			else
1146 				return (NDI_FAILURE);
1147 		}
1148 
1149 		/* Set use_mdi_devi_locking appropriately */
1150 		if ((op != BUS_CONFIG_ONE) || (op == BUS_CONFIG_ONE &&
1151 		    strncmp((char *)devname, IBNEX_IBPORT_CNAME, 6) != 0)) {
1152 			IBTF_DPRINTF_L4("ibnex",
1153 			    "\tbus_config: using mdi_devi_enter");
1154 			use_mdi_devi_locking = 1;
1155 		}
1156 	}
1157 
1158 	if (use_mdi_devi_locking)
1159 		mdi_devi_enter(parent, &circ);
1160 	else
1161 		ndi_devi_enter(parent, &circ);
1162 
1163 	switch (op) {
1164 	case BUS_CONFIG_ONE:
1165 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ONE, "
1166 		    "parent %p", parent);
1167 
1168 		len = strlen((char *)devname) + 1;
1169 		device_name = i_ddi_strdup(devname, KM_SLEEP);
1170 		i_ddi_parse_name(device_name, &cname, &caddr, NULL);
1171 
1172 		if (caddr == NULL || (strlen(caddr) == 0)) {
1173 			kmem_free(device_name, len);
1174 			if (use_mdi_devi_locking)
1175 				mdi_devi_exit(parent, circ);
1176 			else
1177 				ndi_devi_exit(parent, circ);
1178 			return (NDI_FAILURE);
1179 		}
1180 
1181 		/*
1182 		 * i_ddi_parse_name() strips of the address portion
1183 		 * of the device name. Recreate device name for
1184 		 * ndi_devi_findchild
1185 		 */
1186 		device_name1 = i_ddi_strdup(devname, KM_SLEEP);
1187 
1188 		IBTF_DPRINTF_L4("ibnex",
1189 		    "\tbus_config: cname %s addr %s", cname, caddr);
1190 
1191 		cdip = ndi_devi_findchild(parent, device_name1);
1192 		if (cdip)
1193 			node_data = ddi_get_parent_data(cdip);
1194 		kmem_free(device_name1, len);
1195 		if (cdip == NULL || (node_data != NULL &&
1196 		    node_data->node_dip == NULL)) {
1197 			/* Node is not present */
1198 			if (strncmp(cname, IBNEX_IOC_CNAME, 3) == 0) {
1199 				if (use_mdi_devi_locking)
1200 					mdi_devi_exit(parent, circ);
1201 				else
1202 					ndi_devi_exit(parent, circ);
1203 
1204 				ret = ibnex_ioc_bus_config_one(&parent, flag,
1205 				    op, devname, child, &need_bus_config);
1206 				if (!need_bus_config) {
1207 					kmem_free(device_name, len);
1208 					return (ret);
1209 				}
1210 
1211 				if (use_mdi_devi_locking)
1212 					mdi_devi_enter(parent, &circ);
1213 				else
1214 					ndi_devi_enter(parent, &circ);
1215 			} else if ((strncmp(cname,
1216 			    IBNEX_IBPORT_CNAME, 6) == 0) &&
1217 			    (parent != ibnex.ibnex_dip)) { /* parent is HCA */
1218 				cdip = ibnex_config_port_node(parent, devname);
1219 				if (cdip)
1220 					ret = IBNEX_SUCCESS;
1221 				else
1222 					ret = IBNEX_FAILURE;
1223 			} else {
1224 				/*
1225 				 * if not IOC or PORT device then always
1226 				 * assume a Pseudo child
1227 				 *
1228 				 * if IB Nexus is the parent, call MDI.
1229 				 * else if HCA is the parent, enumerate
1230 				 * the Pseudo node.
1231 				 */
1232 				ret = IBNEX_SUCCESS;
1233 				ibnex_pseudo_initnodes();
1234 				if (parent == ibnex.ibnex_dip) {
1235 					if (use_mdi_devi_locking)
1236 						mdi_devi_exit(parent, circ);
1237 					else
1238 						ndi_devi_exit(parent, circ);
1239 
1240 					mutex_enter(&ibnex.ibnex_mutex);
1241 					ret = ibnex_pseudo_mdi_config_one(
1242 					    flag, devname, child, cname,
1243 					    caddr);
1244 					mutex_exit(&ibnex.ibnex_mutex);
1245 					kmem_free(device_name, len);
1246 					return (ret);
1247 				}
1248 				mutex_enter(&ibnex.ibnex_mutex);
1249 				ret = ibnex_pseudo_config_one(NULL,
1250 				    caddr, parent);
1251 				mutex_exit(&ibnex.ibnex_mutex);
1252 			}
1253 		}
1254 
1255 		if (strncmp(cname, IBNEX_IBPORT_CNAME, 6) == 0) {
1256 			/* Allows enumeration under PHCI */
1257 			flag |= NDI_MDI_FALLBACK;
1258 		}
1259 		kmem_free(device_name, len);
1260 		break;
1261 
1262 	case BUS_CONFIG_OBP_ARGS:
1263 		cdip = ibnex_config_obp_args(parent, devname);
1264 		if (cdip) {
1265 			/*
1266 			 * Boot case.
1267 			 * Special handling because the "devname"
1268 			 * format for the enumerated device is
1269 			 * different.
1270 			 */
1271 			node_data = ddi_get_parent_data(cdip);
1272 			port_node = &node_data->node_data.port_node;
1273 			if (node_data->node_type ==
1274 			    IBNEX_VPPA_COMMSVC_NODE) {
1275 				srvname =
1276 				    ibnex.ibnex_vppa_comm_svc_names[
1277 				    port_node->port_commsvc_idx];
1278 				(void) snprintf(nameaddr, MAXNAMELEN,
1279 				    "ibport@%x,%x,%s",
1280 				    port_node->port_num,
1281 				    port_node->port_pkey, srvname);
1282 			}
1283 			devname = (void *)nameaddr;
1284 		} else {
1285 			IBTF_DPRINTF_L2("ibnex",
1286 			    "\tbus_config: CONFIG_OBP_ARGS : invalid state!!");
1287 
1288 			ret = IBNEX_FAILURE;
1289 		}
1290 		break;
1291 	case BUS_CONFIG_ALL:
1292 		/*FALLTHRU*/
1293 	case BUS_CONFIG_DRIVER:
1294 		if (op == BUS_CONFIG_ALL)
1295 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ALL, "
1296 			    "parent %p", parent);
1297 		else
1298 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_DRIVER"
1299 			    ", parent %p", parent);
1300 
1301 		/*
1302 		 * No locks to be held while calling mdi_vhci_bus_config()
1303 		 * ibnex_config_all_children() holds appropriate locks.
1304 		 */
1305 		if (use_mdi_devi_locking)
1306 			mdi_devi_exit(parent, circ);
1307 		else
1308 			ndi_devi_exit(parent, circ);
1309 
1310 		/*
1311 		 * Drive CONFIG requests for IB Nexus parent through
1312 		 * MDI. This is needed to load the HCA drivers in x86 SRP
1313 		 * boot case.
1314 		 *
1315 		 * CONFIG Requests with HCA parent will probe devices using
1316 		 * ibdm and configure all children.
1317 		 */
1318 		if (parent == ibnex.ibnex_dip) {
1319 			ibdm_ioc_info_t	*ioc_list, *new_ioc_list;
1320 
1321 			mutex_enter(&ibnex.ibnex_mutex);
1322 			while (ibnex.ibnex_ioc_list_state !=
1323 			    IBNEX_IOC_LIST_READY) {
1324 				cv_wait(&ibnex.ibnex_ioc_list_cv,
1325 				    &ibnex.ibnex_mutex);
1326 			}
1327 			ibnex.ibnex_ioc_list_state = IBNEX_IOC_LIST_RENEW;
1328 			mutex_exit(&ibnex.ibnex_mutex);
1329 			/* Enumerate all the IOC's */
1330 			ibdm_ibnex_port_settle_wait(0,
1331 			    ibnex_port_settling_time);
1332 
1333 			new_ioc_list = ibdm_ibnex_get_ioc_list(
1334 			    IBDM_IBNEX_NORMAL_PROBE);
1335 			IBTF_DPRINTF_L4("ibnex",
1336 			    "\tbus_config: alloc ioc_list %p", new_ioc_list);
1337 			/*
1338 			 * Optimize the calls for each BUS_CONFIG_ALL request
1339 			 * to the IB Nexus dip. This is currently done for
1340 			 * each PDIP.
1341 			 */
1342 			mutex_enter(&ibnex.ibnex_mutex);
1343 			ioc_list = ibnex.ibnex_ioc_list;
1344 			ibnex.ibnex_ioc_list = new_ioc_list;
1345 			ibnex.ibnex_ioc_list_state = IBNEX_IOC_LIST_READY;
1346 			cv_broadcast(&ibnex.ibnex_ioc_list_cv);
1347 			mutex_exit(&ibnex.ibnex_mutex);
1348 
1349 			if (ioc_list) {
1350 				IBTF_DPRINTF_L4("ibnex",
1351 				    "\tbus_config: freeing ioc_list %p",
1352 				    ioc_list);
1353 				ibdm_ibnex_free_ioc_list(ioc_list);
1354 			}
1355 
1356 
1357 			ret = mdi_vhci_bus_config(parent,
1358 			    flag, op, devname, child, NULL);
1359 			return (ret);
1360 		} else {
1361 			ibnex_config_all_children(parent);
1362 
1363 			if (use_mdi_devi_locking)
1364 				mdi_devi_enter(parent, &circ);
1365 			else
1366 				ndi_devi_enter(parent, &circ);
1367 		}
1368 		break;
1369 	default:
1370 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: error");
1371 		ret = IBNEX_FAILURE;
1372 		break;
1373 	}
1374 
1375 	if (use_mdi_devi_locking)
1376 		mdi_devi_exit(parent, circ);
1377 	else
1378 		ndi_devi_exit(parent, circ);
1379 
1380 	if (ret == IBNEX_SUCCESS) {
1381 		if (op == BUS_CONFIG_OBP_ARGS)
1382 			op = BUS_CONFIG_ONE;
1383 
1384 		if (pdip == NULL)
1385 			pdip = parent;
1386 
1387 		ret = ndi_busop_bus_config(
1388 		    pdip, flag, op, devname, child, 0);
1389 		IBTF_DPRINTF_L4("ibnex", "\tbus_config:"
1390 		    "ndi_busop_bus_config : retval %d", ret);
1391 		return (ret);
1392 	}
1393 
1394 	return (NDI_FAILURE);
1395 }
1396 
1397 
1398 /*
1399  * ibnex_config_root_iocnode()
1400  *	Configures one particular instance of the IOC driver.
1401  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1402  */
1403 static int
1404 ibnex_config_root_iocnode(dev_info_t *parent, char *device_name)
1405 {
1406 	int			ret, port = 0, iter = 0;
1407 	boolean_t		displayed = B_FALSE;
1408 	char			*portstr;
1409 	ib_guid_t		hca_guid, iou_guid, ioc_guid;
1410 	ibdm_ioc_info_t		*ioc_info;
1411 	ibdm_port_attr_t	*port_attr;
1412 
1413 	IBTF_DPRINTF_L4("ibnex",
1414 	    "\tconfig_root_iocnode: name %s", device_name);
1415 
1416 	portstr = strstr(device_name, ":port=");
1417 	if (portstr == NULL) {
1418 		return (IBNEX_FAILURE);
1419 	}
1420 
1421 	portstr[0] = 0; portstr++;
1422 	if (ibnex_devname2port(portstr, &port)) {
1423 		IBTF_DPRINTF_L4("ibnex", "\tconfig_root_iocnode: invalid port");
1424 		return (IBNEX_FAILURE);
1425 	}
1426 
1427 	if (ibnex_devname_to_node_n_ioc_guids(
1428 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
1429 		return (IBNEX_FAILURE);
1430 	}
1431 
1432 	(void) snprintf(device_name, (IBNEX_MAX_NODEADDR_SZ + 4),
1433 	    "ioc@%llX,%llX", (longlong_t)ioc_guid, (longlong_t)iou_guid);
1434 
1435 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1436 	if ((port_attr = ibdm_ibnex_probe_hcaport(hca_guid, port)) == NULL) {
1437 		IBTF_DPRINTF_L2("ibnex",
1438 		    "\tconfig_root_iocnode: Port does not exist");
1439 		return (IBNEX_FAILURE);
1440 	}
1441 
1442 	/* Wait until "port is up" */
1443 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1444 		ibdm_ibnex_free_port_attr(port_attr);
1445 		delay(drv_usectohz(10000));
1446 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1447 		    hca_guid, port)) == NULL) {
1448 			return (IBNEX_FAILURE);
1449 		}
1450 
1451 		if (iter++ == 400) {
1452 			if (displayed == B_FALSE) {
1453 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1454 				    "initialization", port_attr->pa_port_num);
1455 				displayed = B_TRUE;
1456 			}
1457 		}
1458 	}
1459 	ibdm_ibnex_free_port_attr(port_attr);
1460 	IBTF_DPRINTF_L4("ibnex", "\tconfig_rootioc_node:"
1461 	    "Port is initialized");
1462 
1463 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) == NULL) {
1464 		ibdm_ibnex_free_ioc_list(ioc_info);
1465 		return (IBNEX_FAILURE);
1466 	}
1467 	mutex_enter(&ibnex.ibnex_mutex);
1468 	if ((ret = ibnex_ioc_config_from_pdip(ioc_info, parent, 0)) !=
1469 	    IBNEX_SUCCESS) {
1470 		IBTF_DPRINTF_L2("ibnex",
1471 		    "\tconfig_root_ioc_node failed for pdip %p", parent);
1472 	}
1473 	mutex_exit(&ibnex.ibnex_mutex);
1474 	ibdm_ibnex_free_ioc_list(ioc_info);
1475 	return (ret);
1476 }
1477 
1478 
1479 static int
1480 ibnex_devname2port(char *portstr, int *port)
1481 {
1482 	char	*temp;
1483 	int	ret = IBNEX_FAILURE;
1484 
1485 	IBTF_DPRINTF_L4("ibnex", "\tdevname2port: Begin");
1486 
1487 	temp = strchr(portstr, '=');
1488 	if (temp != NULL) {
1489 		temp++;
1490 		*port = ibnex_str2int(temp, strlen(temp), &ret);
1491 	}
1492 	return (ret);
1493 }
1494 
1495 
1496 /*
1497  * ibnex_config_all_children()
1498  *	Wait for lata SM initialization case before enumerating the nodes
1499  *	Get list of HCA's and HCA port information
1500  *		Create device device nodes and its node properties
1501  *		for port nodes and VPPA nodes
1502  *	Get list of all the IOC node information
1503  *		Create device nodes and its properties for all the IOCs
1504  *		if not created already
1505  *	Bind drivers for all the newly created device nodes
1506  *	Support Pseudo nodes enumerated using their .conf file
1507  */
1508 static void
1509 ibnex_config_all_children(dev_info_t *parent)
1510 {
1511 	int			ii;
1512 	ibdm_ioc_info_t		*ioc_list;
1513 	ibdm_hca_list_t		*hca_list;
1514 	ib_guid_t		hca_guid;
1515 	int			circ;
1516 
1517 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: Begin");
1518 
1519 	/*
1520 	 * Enumerate children of this HCA, port nodes,
1521 	 * VPPA & HCA_SVC nodes. Use ndi_devi_enter() for
1522 	 * locking. IB Nexus is enumerating the children
1523 	 * of HCA, not MPXIO clients.
1524 	 */
1525 	ndi_devi_enter(parent, &circ);
1526 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1527 	ibdm_ibnex_port_settle_wait(hca_guid, ibnex_port_settling_time);
1528 	hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1529 	if (hca_list == NULL) {
1530 		ndi_devi_exit(parent, circ);
1531 		return;
1532 	}
1533 	ibnex_create_hcasvc_nodes(parent, hca_list->hl_hca_port_attr);
1534 	for (ii = 0; ii < hca_list->hl_nports; ii++) {
1535 		ibnex_create_port_nodes(
1536 		    parent, &hca_list->hl_port_attr[ii]);
1537 		ibnex_create_vppa_nodes(
1538 		    parent, &hca_list->hl_port_attr[ii]);
1539 	}
1540 	ibdm_ibnex_free_hca_list(hca_list);
1541 	ndi_devi_exit(parent, circ);
1542 
1543 	/*
1544 	 * Use mdi_devi_enter() for locking. IB Nexus is
1545 	 * enumerating MPxIO clients.
1546 	 */
1547 	mdi_devi_enter(parent, &circ);
1548 
1549 	ibnex_pseudo_initnodes();
1550 
1551 	mutex_enter(&ibnex.ibnex_mutex);
1552 	while (ibnex.ibnex_ioc_list_state != IBNEX_IOC_LIST_READY) {
1553 		cv_wait(&ibnex.ibnex_ioc_list_cv, &ibnex.ibnex_mutex);
1554 	}
1555 	ibnex.ibnex_ioc_list_state = IBNEX_IOC_LIST_ACCESS;
1556 	ioc_list = ibnex.ibnex_ioc_list;
1557 	while (ioc_list) {
1558 		(void) ibnex_ioc_config_from_pdip(ioc_list, parent, 0);
1559 		ioc_list = ioc_list->ioc_next;
1560 	}
1561 	ibnex.ibnex_ioc_list_state = IBNEX_IOC_LIST_READY;
1562 	cv_broadcast(&ibnex.ibnex_ioc_list_cv);
1563 
1564 	/* Config IBTF Pseudo clients */
1565 	ibnex_config_pseudo_all(parent);
1566 
1567 	mutex_exit(&ibnex.ibnex_mutex);
1568 	mdi_devi_exit(parent, circ);
1569 
1570 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: End");
1571 }
1572 
1573 
1574 /*
1575  * ibnex_create_port_nodes:
1576  *	Creates a device node per each communication service defined
1577  *	in the "port-commsvc-list" property per HCA port
1578  */
1579 static void
1580 ibnex_create_port_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1581 {
1582 	int		idx;
1583 	dev_info_t	*dip;
1584 	int		rval;
1585 
1586 	mutex_enter(&ibnex.ibnex_mutex);
1587 	for (idx = 0; idx < ibnex.ibnex_num_comm_svcs; idx++) {
1588 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1589 		    idx, 0, &dip);
1590 		if (rval != IBNEX_SUCCESS) {
1591 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1592 			    IBNEX_PORT_COMMSVC_NODE, 0, &rval,
1593 			    IBNEX_DEVFS_ENUMERATE);
1594 		}
1595 	}
1596 	mutex_exit(&ibnex.ibnex_mutex);
1597 }
1598 
1599 
1600 /*
1601  * ibnex_create_vppa_nodes:
1602  *	Creates a device node per each communication service defined
1603  *	in the "vppa-commsvc-list" property and per each PKEY that
1604  *	this particular port supports and per HCA port
1605  */
1606 static void
1607 ibnex_create_vppa_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1608 {
1609 	int 		idx, ii;
1610 	int		rval;
1611 	ib_pkey_t 	pkey;
1612 	dev_info_t	*dip;
1613 
1614 	IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: Begin");
1615 
1616 	mutex_enter(&ibnex.ibnex_mutex);
1617 	if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1618 		IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: "
1619 		    "Port %d is down", port_attr->pa_port_num);
1620 		mutex_exit(&ibnex.ibnex_mutex);
1621 		return;
1622 	}
1623 	for (idx = 0; idx < ibnex.ibnex_nvppa_comm_svcs; idx++) {
1624 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1625 			pkey = port_attr->pa_pkey_tbl[ii].pt_pkey;
1626 
1627 			if (IBNEX_INVALID_PKEY(pkey)) {
1628 				continue;
1629 			}
1630 			rval = ibnex_get_dip_from_guid(
1631 			    port_attr->pa_port_guid, idx, pkey, &dip);
1632 			if ((rval != IBNEX_SUCCESS) || (dip == NULL)) {
1633 				(void) ibnex_commsvc_initnode(parent, port_attr,
1634 				    idx, IBNEX_VPPA_COMMSVC_NODE,
1635 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1636 				IBTF_DPRINTF_L5("ibnex", "\tcreate_vppa_nodes: "
1637 				    "commsvc_initnode failed rval %x", rval);
1638 			}
1639 		}
1640 	}
1641 	mutex_exit(&ibnex.ibnex_mutex);
1642 }
1643 
1644 
1645 /*
1646  * ibnex_create_hcasvc_nodes:
1647  *	Creates a device node per each communication service defined
1648  *	in the "port-commsvc-list" property per HCA port
1649  */
1650 static void
1651 ibnex_create_hcasvc_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1652 {
1653 	int		idx;
1654 	dev_info_t	*dip;
1655 	int		rval;
1656 
1657 	mutex_enter(&ibnex.ibnex_mutex);
1658 	for (idx = 0; idx < ibnex.ibnex_nhcasvc_comm_svcs; idx++) {
1659 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1660 		    idx, 0, &dip);
1661 		if (rval != IBNEX_SUCCESS) {
1662 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1663 			    IBNEX_HCASVC_COMMSVC_NODE, 0, &rval,
1664 			    IBNEX_DEVFS_ENUMERATE);
1665 			IBTF_DPRINTF_L5("ibnex", "create_hcasvc_nodes: "
1666 			    "commsvc_initnode failed, rval %x", rval);
1667 		}
1668 	}
1669 	mutex_exit(&ibnex.ibnex_mutex);
1670 }
1671 
1672 
1673 /*
1674  * ibnex_bus_unconfig()
1675  *
1676  *	Unconfigure a particular device node or all instance of a device
1677  *	driver device or all children of IBnex
1678  */
1679 static int
1680 ibnex_bus_unconfig(dev_info_t *parent,
1681     uint_t flag, ddi_bus_config_op_t op, void *device_name)
1682 {
1683 	ibnex_node_data_t	*ndp;
1684 	major_t			major = (major_t)(uintptr_t)device_name;
1685 	dev_info_t		*dip = NULL;
1686 
1687 	if (ndi_busop_bus_unconfig(parent, flag, op, device_name) !=
1688 	    DDI_SUCCESS)
1689 		return (DDI_FAILURE);
1690 
1691 	/*
1692 	 * We can come into this routine with dip as ibnexus dip or hca dip.
1693 	 * When the dip is that of ib nexus we need to clean up the IOC and
1694 	 * pseudo nodes. When the dip is that of an HCA (not IB nexus dip)
1695 	 * cleanup the port nodes.
1696 	 */
1697 	if ((op == BUS_UNCONFIG_ALL || op == BUS_UNCONFIG_DRIVER) &&
1698 	    (flag & (NDI_UNCONFIG | NDI_DETACH_DRIVER))) {
1699 		mutex_enter(&ibnex.ibnex_mutex);
1700 		if (parent != ibnex.ibnex_dip) {
1701 			if (major == -1) {
1702 				/*
1703 				 * HCA dip. When major number is -1 HCA is
1704 				 * going away cleanup all the port nodes.
1705 				 */
1706 				for (ndp = ibnex.ibnex_port_node_head;
1707 				    ndp; ndp = ndp->node_next) {
1708 					ibnex_port_node_t	*port_node;
1709 
1710 					port_node = &ndp->node_data.port_node;
1711 					if (port_node->port_pdip == parent) {
1712 						port_node->port_pdip = NULL;
1713 						ndp->node_dip = NULL;
1714 						ndp->node_state =
1715 						    IBNEX_CFGADM_UNCONFIGURED;
1716 					}
1717 				}
1718 			} else {
1719 				/*
1720 				 * HCA dip. Cleanup only the port nodes that
1721 				 * match the major number.
1722 				 */
1723 				for (ndp = ibnex.ibnex_port_node_head;
1724 				    ndp; ndp = ndp->node_next) {
1725 					ibnex_port_node_t	*port_node;
1726 
1727 					port_node = &ndp->node_data.port_node;
1728 					dip = ndp->node_dip;
1729 					if (dip && (ddi_driver_major(dip) ==
1730 					    major) && port_node->port_pdip ==
1731 					    parent) {
1732 						port_node->port_pdip = NULL;
1733 						ndp->node_dip = NULL;
1734 						ndp->node_state =
1735 						    IBNEX_CFGADM_UNCONFIGURED;
1736 					}
1737 				}
1738 			}
1739 		} else {
1740 			/*
1741 			 * IB dip. here we handle IOC and pseudo nodes which
1742 			 * are the children of IB nexus. Cleanup only the nodes
1743 			 * with matching major number. We also need to cleanup
1744 			 * the PathInfo links to the PHCI here.
1745 			 */
1746 			for (ndp = ibnex.ibnex_ioc_node_head;
1747 			    ndp; ndp = ndp->node_next) {
1748 				dip = ndp->node_dip;
1749 				if (dip && (ddi_driver_major(dip) == major)) {
1750 					(void) ibnex_offline_childdip(dip);
1751 				}
1752 			}
1753 			for (ndp = ibnex.ibnex_pseudo_node_head;
1754 			    ndp; ndp = ndp->node_next) {
1755 				dip = ndp->node_dip;
1756 				if (dip && (ddi_driver_major(dip) == major)) {
1757 					(void) ibnex_offline_childdip(dip);
1758 				}
1759 			}
1760 		}
1761 		mutex_exit(&ibnex.ibnex_mutex);
1762 	}
1763 	return (DDI_SUCCESS);
1764 }
1765 
1766 
1767 /*
1768  * ibnex_config_port_node()
1769  *
1770  *	Configures a particular port / HCA  node for a particular
1771  *	communication service.
1772  *	The format of the device_name is
1773  *		ibport@<Port#>,<pkey>,<service name>
1774  *	where pkey = 0 for port communication service nodes
1775  *		  Port# = 0 for HCA_SVC communication service nodes
1776  *	Returns "dev_info_t" of the "child" node just created
1777  *	NULL when failed to enumerate the child node
1778  */
1779 static dev_info_t *
1780 ibnex_config_port_node(dev_info_t *parent, char *devname)
1781 {
1782 	int			ii, index;
1783 	int			rval;
1784 	uint8_t			port_num;
1785 	ib_guid_t		hca_guid, port_guid;
1786 	ib_pkey_t		pkey;
1787 	dev_info_t		*cdip;
1788 	ibdm_port_attr_t	*port_attr;
1789 	ibdm_hca_list_t		*hca_list;
1790 
1791 	IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: %s", devname);
1792 
1793 	if (ibnex_get_pkey_commsvc_index_portnum(devname,
1794 	    &index, &pkey, &port_num) != IBNEX_SUCCESS) {
1795 		IBTF_DPRINTF_L2("ibnex",
1796 		    "\tconfig_port_node: Invalid Service Name");
1797 		return (NULL);
1798 	}
1799 
1800 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1801 	if (port_num == 0) {
1802 		/*
1803 		 * Use the dummy port attribute for HCA node in hca_list
1804 		 * Note : pa_state is always IBT_PORT_ACTIVE.
1805 		 */
1806 		hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1807 		ASSERT(hca_list != NULL);
1808 		port_attr = hca_list->hl_hca_port_attr;
1809 	} else {
1810 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1811 		    hca_guid, port_num)) == NULL) {
1812 			IBTF_DPRINTF_L2("ibnex",
1813 			    "\tconfig_port_node: Port does not exist");
1814 			return (NULL);
1815 		}
1816 
1817 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1818 			ibdm_ibnex_port_settle_wait(
1819 			    hca_guid, ibnex_port_settling_time);
1820 			ibdm_ibnex_free_port_attr(port_attr);
1821 			if ((port_attr = ibdm_ibnex_probe_hcaport(
1822 			    hca_guid, port_num)) == NULL) {
1823 				return (NULL);
1824 			}
1825 		}
1826 	}
1827 
1828 	port_guid = port_attr->pa_port_guid;
1829 	mutex_enter(&ibnex.ibnex_mutex);
1830 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1831 	    &cdip)) == IBNEX_SUCCESS) {
1832 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1833 		mutex_exit(&ibnex.ibnex_mutex);
1834 		if (port_num != 0)
1835 			ibdm_ibnex_free_port_attr(port_attr);
1836 		else
1837 			ibdm_ibnex_free_hca_list(hca_list);
1838 		return (cdip);
1839 	}
1840 
1841 	if (pkey == 0 && port_num != 0) {
1842 		cdip = ibnex_commsvc_initnode(parent,
1843 		    port_attr, index, IBNEX_PORT_COMMSVC_NODE, pkey, &rval,
1844 		    IBNEX_DEVFS_ENUMERATE);
1845 		IBTF_DPRINTF_L5("ibnex",
1846 		    "\t ibnex_commsvc_initnode rval %x", rval);
1847 	} else if (pkey == 0 && port_num == 0) {
1848 		cdip = ibnex_commsvc_initnode(parent,
1849 		    port_attr, index, IBNEX_HCASVC_COMMSVC_NODE, pkey, &rval,
1850 		    IBNEX_DEVFS_ENUMERATE);
1851 		IBTF_DPRINTF_L5("ibnex",
1852 		    "\t ibnex_commsvc_initnode rval %x", rval);
1853 	} else {
1854 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1855 			IBTF_DPRINTF_L4("ibnex", "\tconfig_port_nodes: "
1856 			    "Port %d is down", port_attr->pa_port_num);
1857 			ibdm_ibnex_free_port_attr(port_attr);
1858 			mutex_exit(&ibnex.ibnex_mutex);
1859 			return (NULL);
1860 		}
1861 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1862 			if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1863 				cdip = ibnex_commsvc_initnode(parent, port_attr,
1864 				    index, IBNEX_VPPA_COMMSVC_NODE,
1865 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1866 				IBTF_DPRINTF_L5("ibnex",
1867 				    "\t ibnex_commsvc_initnode rval %x", rval);
1868 				break;
1869 			}
1870 		}
1871 	}
1872 	mutex_exit(&ibnex.ibnex_mutex);
1873 	if (port_num != 0)
1874 		ibdm_ibnex_free_port_attr(port_attr);
1875 	else
1876 		ibdm_ibnex_free_hca_list(hca_list);
1877 	return (cdip);
1878 }
1879 
1880 
1881 /*
1882  * ibnex_config_obp_args()
1883  *	Configures a particular port node for a IP over IB communication
1884  *	service.
1885  *	The format of the input string "devname" is
1886  *		port=x,pkey=y,protocol=ip,<wanboot options>
1887  *	Thr format of the node name created here is
1888  *		ibport@<Port#>,<pkey>,<service name>
1889  *	where pkey = 0 for port communication service nodes
1890  *	Returns "dev_info_t" of the "child" node just created
1891  *	NULL when failed to enumerate the child node
1892  *
1893  */
1894 static dev_info_t *
1895 ibnex_config_obp_args(dev_info_t *parent, char *devname)
1896 {
1897 	int			ii, index;
1898 	int			rval, iter = 0;
1899 	char			*temp;
1900 	uint8_t			port_num;
1901 	ib_guid_t		hca_guid, port_guid;
1902 	ib_pkey_t		pkey;
1903 	dev_info_t		*cdip;
1904 	boolean_t		displayed = B_FALSE;
1905 	ibdm_port_attr_t	*port_attr;
1906 
1907 	IBTF_DPRINTF_L4("ibnex", "\tconfig_obp_args: %s", devname);
1908 
1909 	/* Is this OBP node for IPoIB ? */
1910 	temp = devname;
1911 	do {
1912 		temp = strstr(temp, ",protocol=ip");
1913 		if (temp == NULL)
1914 			break;
1915 
1916 		if (strlen(devname) > (int)((temp - devname) + 12)) {
1917 			if (temp[12] == ',')
1918 				break;
1919 		} else {
1920 			break;
1921 		}
1922 		temp++;
1923 	} while (temp);
1924 
1925 	if (temp == NULL)
1926 		return (NULL);
1927 	if (ibnex_prom_devname_to_pkey_n_portnum(
1928 	    devname, &pkey, &port_num) != IBNEX_SUCCESS) {
1929 		return (NULL);
1930 	}
1931 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
1932 		if (strcmp(ibnex.ibnex_vppa_comm_svc_names[index],
1933 		    "ipib") == 0) {
1934 			break;
1935 		}
1936 	}
1937 
1938 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1939 	if ((port_attr = ibdm_ibnex_probe_hcaport(
1940 	    hca_guid, port_num)) == NULL) {
1941 		IBTF_DPRINTF_L2("ibnex",
1942 		    "\tconfig_port_node: Port does not exist");
1943 		return (NULL);
1944 	}
1945 
1946 	/* Wait until "port is up" */
1947 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1948 		ibdm_ibnex_free_port_attr(port_attr);
1949 		delay(drv_usectohz(10000));
1950 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1951 		    hca_guid, port_num)) == NULL) {
1952 			return (NULL);
1953 		}
1954 		if (iter++ == 400) {
1955 			if (displayed == B_FALSE) {
1956 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1957 				    "initialization", port_attr->pa_port_num);
1958 				displayed = B_TRUE;
1959 			}
1960 		}
1961 	}
1962 	IBTF_DPRINTF_L4("ibnex", "\tPort is initialized");
1963 
1964 	mutex_enter(&ibnex.ibnex_mutex);
1965 	port_guid = port_attr->pa_port_guid;
1966 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1967 	    &cdip)) == IBNEX_SUCCESS) {
1968 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1969 		mutex_exit(&ibnex.ibnex_mutex);
1970 		ibdm_ibnex_free_port_attr(port_attr);
1971 		return (cdip);
1972 	}
1973 	for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1974 		if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1975 			cdip = ibnex_commsvc_initnode(parent, port_attr,
1976 			    index, IBNEX_VPPA_COMMSVC_NODE, pkey, &rval,
1977 			    IBNEX_CFGADM_ENUMERATE);
1978 			IBTF_DPRINTF_L5("ibnex",
1979 			    "\t ibnex_commsvc_initnode rval %x", rval);
1980 			break;
1981 		}
1982 	}
1983 	mutex_exit(&ibnex.ibnex_mutex);
1984 
1985 	ibdm_ibnex_free_port_attr(port_attr);
1986 	return (cdip);
1987 }
1988 
1989 
1990 /*
1991  * ibnex_prom_devname_to_pkey_n_portnum()
1992  *	Parses the device node name and extracts "PKEY" and "port#"
1993  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1994  */
1995 static int
1996 ibnex_prom_devname_to_pkey_n_portnum(
1997     char *devname, ib_pkey_t *pkey, uint8_t *port)
1998 {
1999 	int	ret = IBNEX_SUCCESS;
2000 	char	*tmp, *tmp1;
2001 
2002 	if ((tmp = strstr(devname, "port=")) != NULL) {
2003 		if ((tmp = strchr(++tmp, '=')) != NULL)
2004 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
2005 				*port = ibnex_str2int(tmp, (tmp1 - tmp), &ret);
2006 	} else
2007 		ret = IBNEX_FAILURE;
2008 
2009 	if ((ret == IBNEX_SUCCESS) &&
2010 	    (tmp = strstr(devname, "pkey=")) != NULL) {
2011 		if ((tmp = strchr(++tmp, '=')) != NULL)
2012 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
2013 				*pkey = ibnex_str2hex(tmp, (tmp1 - tmp), &ret);
2014 	} else
2015 		ret = IBNEX_FAILURE;
2016 
2017 	return (ret);
2018 }
2019 
2020 
2021 /*
2022  * ibnex_get_pkey_commsvc_index_portnum()
2023  *	Parses the device node name and extracts PKEY, communication
2024  *	service index & Port #.
2025  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2026  */
2027 static int
2028 ibnex_get_pkey_commsvc_index_portnum(char *device_name, int *index,
2029     ib_pkey_t *pkey, uint8_t *port_num)
2030 {
2031 	char 	*srv, **service_name, *temp;
2032 	int  	ii, ncommsvcs, ret;
2033 
2034 	if (ibnex_devname_to_portnum(device_name, port_num) !=
2035 	    IBNEX_SUCCESS) {
2036 		IBTF_DPRINTF_L2("ibnex",
2037 		    "\tget_pkey_commsvc_index_portnum: Invalid PortGuid");
2038 		return (NULL);
2039 	}
2040 	srv = strchr(device_name, ',');
2041 	if (srv == 0)
2042 		return (IBNEX_FAILURE);
2043 
2044 	srv++;
2045 	temp = strchr(srv, ',');
2046 	if (temp == 0)
2047 		return (IBNEX_FAILURE);
2048 	temp++;
2049 	*pkey = ibnex_str2hex(srv, (temp - srv - 1), &ret);
2050 	if (ret != IBNEX_SUCCESS)
2051 		return (ret);
2052 
2053 	if (*pkey == 0 && *port_num != 0) {
2054 		service_name = ibnex.ibnex_comm_svc_names;
2055 		ncommsvcs = ibnex.ibnex_num_comm_svcs;
2056 	} else if (*pkey == 0 && *port_num == 0) {
2057 		service_name = ibnex.ibnex_hcasvc_comm_svc_names;
2058 		ncommsvcs = ibnex.ibnex_nhcasvc_comm_svcs;
2059 	} else {
2060 		service_name = ibnex.ibnex_vppa_comm_svc_names;
2061 		ncommsvcs = ibnex.ibnex_nvppa_comm_svcs;
2062 	}
2063 
2064 	for (ii = 0; ii < ncommsvcs; ii++) {
2065 		if (strcmp(service_name[ii], temp) == 0) {
2066 			break;
2067 		}
2068 	}
2069 	if (ii == ncommsvcs)
2070 		return (IBNEX_FAILURE);
2071 
2072 	*index = ii;
2073 	return (IBNEX_SUCCESS);
2074 }
2075 
2076 
2077 /*
2078  * ibnex_devname_to_portnum()
2079  *	Get portguid from device name
2080  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2081  */
2082 static int
2083 ibnex_devname_to_portnum(char *device_name, uint8_t *portnum)
2084 {
2085 	int	ret;
2086 	char	*temp1, *temp2;
2087 
2088 	temp1 = strchr(device_name, '@');
2089 	if (temp1 == NULL) {
2090 		return (IBNEX_FAILURE);
2091 	}
2092 	temp2 = strchr(temp1, ',');
2093 	if (temp2 == NULL)
2094 		return (IBNEX_FAILURE);
2095 	temp1++;
2096 	*portnum = ibnex_str2hex(temp1, (temp2 - temp1), &ret);
2097 	return (ret);
2098 }
2099 
2100 
2101 /*
2102  * ibnex_config_ioc_node()
2103  *	Configures one particular instance of the IOC driver.
2104  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2105  */
2106 static int
2107 ibnex_config_ioc_node(char *device_name, dev_info_t *pdip)
2108 {
2109 	int			ret;
2110 	ib_guid_t		iou_guid, ioc_guid;
2111 	ibdm_ioc_info_t		*ioc_info;
2112 
2113 	IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: Begin");
2114 
2115 	if (ibnex_devname_to_node_n_ioc_guids(
2116 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
2117 		return (IBNEX_FAILURE);
2118 	}
2119 
2120 	ibdm_ibnex_port_settle_wait(0, ibnex_port_settling_time);
2121 
2122 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) ==
2123 	    NULL) {
2124 		ibdm_ibnex_free_ioc_list(ioc_info);
2125 		return (IBNEX_FAILURE);
2126 	}
2127 	mutex_enter(&ibnex.ibnex_mutex);
2128 	ret = ibnex_ioc_config_from_pdip(ioc_info, pdip, 0);
2129 	mutex_exit(&ibnex.ibnex_mutex);
2130 	ibdm_ibnex_free_ioc_list(ioc_info);
2131 	IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: ret %x",
2132 	    ret);
2133 	return (ret);
2134 }
2135 
2136 
2137 /*
2138  * ibnex_devname_to_node_n_ioc_guids()
2139  *	Get node guid and ioc guid from the device name
2140  *	Format of the device node name is:
2141  *		ioc@<IOC GUID>,<IOU GUID>
2142  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2143  */
2144 static int
2145 ibnex_devname_to_node_n_ioc_guids(
2146     char *device_name, ib_guid_t *iou_guid, ib_guid_t *ioc_guid,
2147     char **ioc_guid_strp)
2148 {
2149 	char	*temp1, *temp;
2150 	int	len, ret;
2151 	char	*ioc_guid_str;
2152 
2153 	IBTF_DPRINTF_L4("ibnex", "\tdevname_to_node_n_ioc_guids:"
2154 	    "Device Name %s", device_name);
2155 
2156 	if ((temp = strchr(device_name, '@')) == NULL) {
2157 		return (IBNEX_FAILURE);
2158 	}
2159 	if ((temp1 = strchr(++temp, ',')) == NULL) {
2160 		return (IBNEX_FAILURE);
2161 	}
2162 	*ioc_guid = ibnex_str2hex(temp, (temp1 - temp), &ret);
2163 	if (ret == IBNEX_SUCCESS) {
2164 		if (ioc_guid_strp) {
2165 			ioc_guid_str = *ioc_guid_strp = kmem_zalloc((temp1
2166 			    - temp) + 1, KM_SLEEP);
2167 			(void) strncpy(ioc_guid_str, temp, temp1 - temp + 1);
2168 			ioc_guid_str[temp1 - temp] = '\0';
2169 		}
2170 		len = device_name + strlen(device_name) - ++temp1;
2171 		*iou_guid = ibnex_str2hex(temp1, len, &ret);
2172 	}
2173 	return (ret);
2174 }
2175 
2176 
2177 /*
2178  * ibnex_ioc_initnode()
2179  *	Allocate a pathinfo node for the IOC
2180  *	Initialize the device node
2181  *	Bind driver to the node
2182  *	Update IBnex global data
2183  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY
2184  */
2185 static int
2186 ibnex_ioc_initnode_pdip(ibnex_node_data_t *node_data,
2187     ibdm_ioc_info_t *ioc_info, dev_info_t *pdip)
2188 {
2189 	int			rval, node_valid;
2190 	ibnex_node_state_t	prev_state;
2191 
2192 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2193 	ASSERT(node_data);
2194 
2195 
2196 	/*
2197 	 * Return EBUSY if another configure/unconfigure
2198 	 * operation is in progress
2199 	 */
2200 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2201 		IBTF_DPRINTF_L4("ibnex",
2202 		    "\tioc_initnode_pdip : BUSY");
2203 		return (IBNEX_BUSY);
2204 	}
2205 
2206 	prev_state = node_data->node_state;
2207 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2208 	mutex_exit(&ibnex.ibnex_mutex);
2209 
2210 	rval = ibnex_ioc_create_pi(ioc_info, node_data, pdip, &node_valid);
2211 
2212 	mutex_enter(&ibnex.ibnex_mutex);
2213 	if (rval == IBNEX_SUCCESS)
2214 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2215 	else if (node_valid)
2216 		node_data->node_state = prev_state;
2217 
2218 	return (rval);
2219 }
2220 
2221 /*
2222  * ibnex_config_pseudo_all()
2223  *	Configure all the pseudo nodes
2224  */
2225 static void
2226 ibnex_config_pseudo_all(dev_info_t *pdip)
2227 {
2228 	ibnex_node_data_t	*nodep;
2229 
2230 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2231 
2232 	for (nodep = ibnex.ibnex_pseudo_node_head;
2233 	    nodep; nodep = nodep->node_next) {
2234 		(void) ibnex_pseudo_config_one(nodep, NULL, pdip);
2235 	}
2236 }
2237 
2238 
2239 /*
2240  * ibnex_pseudo_config_one()
2241  */
2242 static int
2243 ibnex_pseudo_config_one(ibnex_node_data_t *node_data, char *caddr,
2244     dev_info_t *pdip)
2245 {
2246 	int			rval;
2247 	ibnex_pseudo_node_t	*pseudo;
2248 	ibnex_node_state_t	prev_state;
2249 
2250 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one(%p, %p, %p)",
2251 	    node_data, caddr, pdip);
2252 
2253 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2254 
2255 	if (node_data == NULL) {
2256 		IBTF_DPRINTF_L4("ibnex",
2257 		    "\tpseudo_config_one: caddr = %s", caddr);
2258 
2259 		/*
2260 		 * This function is now called with PHCI / HCA driver
2261 		 * as parent. The format of devicename is :
2262 		 * 	<driver_name>@<driver_name>,<unit_address>
2263 		 * The "caddr" part of the devicename matches the
2264 		 * format of pseudo_node_addr.
2265 		 *
2266 		 * Use "caddr" to find a matching Pseudo node entry.
2267 		 */
2268 		node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2269 		    (void *)caddr, 0, 0);
2270 	}
2271 
2272 	if (node_data == NULL) {
2273 		IBTF_DPRINTF_L2("ibnex",
2274 		    "\tpseudo_config_one: Invalid node");
2275 		return (IBNEX_FAILURE);
2276 	}
2277 
2278 	if (node_data->node_ap_state == IBNEX_NODE_AP_UNCONFIGURED) {
2279 		IBTF_DPRINTF_L4("ibnex",
2280 		    "\tpseudo_config_one: Unconfigured node");
2281 		return (IBNEX_FAILURE);
2282 	}
2283 
2284 	pseudo = &node_data->node_data.pseudo_node;
2285 
2286 	/*
2287 	 * Do not enumerate nodes with ib-node-type set as "merge"
2288 	 */
2289 	if (pseudo->pseudo_merge_node == 1) {
2290 		IBTF_DPRINTF_L4("ibnex",
2291 		    "\tpseudo_config_one: merge_node");
2292 		return (IBNEX_FAILURE);
2293 	}
2294 
2295 	/*
2296 	 * Check if a PI has already been created for the PDIP.
2297 	 * If so, return SUCCESS.
2298 	 */
2299 	if (node_data->node_dip != NULL && mdi_pi_find(pdip,
2300 	    pseudo->pseudo_node_addr, pseudo->pseudo_node_addr) != NULL) {
2301 		IBTF_DPRINTF_L4("ibnex",
2302 		    "\tpseudo_config_one: PI created,"
2303 		    " pdip %p, addr %s", pdip, pseudo->pseudo_node_addr);
2304 		return (IBNEX_SUCCESS);
2305 	}
2306 
2307 	/*
2308 	 * Return EBUSY if another unconfigure
2309 	 * operation is in progress
2310 	 */
2311 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2312 		IBTF_DPRINTF_L4("ibnex",
2313 		    "\tpseudo_config_one: BUSY");
2314 		return (IBNEX_BUSY);
2315 	}
2316 
2317 
2318 	prev_state = node_data->node_state;
2319 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2320 
2321 	mutex_exit(&ibnex.ibnex_mutex);
2322 	rval = ibnex_pseudo_create_pi_pdip(node_data, pdip);
2323 	mutex_enter(&ibnex.ibnex_mutex);
2324 
2325 	if (rval == IBNEX_SUCCESS) {
2326 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2327 	} else {
2328 		node_data->node_state = prev_state;
2329 	}
2330 
2331 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one: ret %x",
2332 	    rval);
2333 	return (rval);
2334 }
2335 
2336 
2337 /*
2338  * ibnex_pseudo_mdi_config_one()
2339  *	This is similar to ibnex_pseudo_config_one. Few
2340  *	differences :
2341  *	1. parent device lock not held(no ndi_devi_enter)
2342  *	2. Called for IB Nexus as parent, not IB HCA as
2343  *	   parent.
2344  *	3. Calls mdi_vhci_bus_config()
2345  * This function skips checks for node_state, initializing
2346  * node_state, node_dip, etc. These checks and initializations
2347  * are done when BUS_CONFIG is called with PHCI as the parent.
2348  */
2349 static int
2350 ibnex_pseudo_mdi_config_one(int flag, void *devname, dev_info_t **child,
2351     char *cname, char *caddr)
2352 {
2353 	int			rval, len;
2354 	char			*node_addr;
2355 	ibnex_node_data_t	*node_data;
2356 
2357 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_mdi_config_one:"
2358 	    "cname = %s caddr = %s", cname, caddr);
2359 
2360 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2361 
2362 	len = strlen(cname) + strlen(caddr) + 2;
2363 	node_addr = (char *)kmem_alloc(len, KM_SLEEP);
2364 
2365 	(void) snprintf(node_addr, len, "%s,%s", cname, caddr);
2366 	node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2367 	    (void *)node_addr, 0, 0);
2368 	kmem_free(node_addr, len);
2369 
2370 	if (node_data == NULL) {
2371 		IBTF_DPRINTF_L2("ibnex",
2372 		    "\tpseudo_mdi_config_one: Invalid node");
2373 		return (IBNEX_FAILURE);
2374 	}
2375 
2376 	mutex_exit(&ibnex.ibnex_mutex);
2377 	rval = mdi_vhci_bus_config(ibnex.ibnex_dip, flag, BUS_CONFIG_ONE,
2378 	    devname, child, node_data->node_data.pseudo_node.pseudo_node_addr);
2379 	mutex_enter(&ibnex.ibnex_mutex);
2380 
2381 	return (rval);
2382 }
2383 
2384 
2385 /*
2386  * ibnex_pseudo_create_all_pi()
2387  *	Create all path infos node for a pseudo entry
2388  */
2389 int
2390 ibnex_pseudo_create_all_pi(ibnex_node_data_t *nodep)
2391 {
2392 	int		hcacnt, rc;
2393 	int		hcafailcnt = 0;
2394 	dev_info_t	*hca_dip;
2395 	ibdm_hca_list_t	*hca_list, *head;
2396 
2397 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_all_pi(%p)",
2398 	    nodep);
2399 	ibdm_ibnex_get_hca_list(&hca_list, &hcacnt);
2400 
2401 	head = hca_list;
2402 
2403 	/*
2404 	 * We return failure even if we fail for all HCAs.
2405 	 */
2406 	for (; hca_list != NULL; hca_list = hca_list->hl_next) {
2407 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
2408 		rc = ibnex_pseudo_create_pi_pdip(nodep, hca_dip);
2409 		if (rc != IBNEX_SUCCESS)
2410 			hcafailcnt++;
2411 	}
2412 	if (head)
2413 		ibdm_ibnex_free_hca_list(head);
2414 
2415 	if (hcafailcnt == hcacnt)
2416 		rc = IBNEX_FAILURE;
2417 	else
2418 		rc = IBNEX_SUCCESS;
2419 
2420 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_all_pi rc %x",
2421 	    rc);
2422 	return (rc);
2423 }
2424 
2425 static int
2426 ibnex_pseudo_create_pi_pdip(ibnex_node_data_t *nodep, dev_info_t *hca_dip)
2427 {
2428 	mdi_pathinfo_t		*pip;
2429 	int			rval;
2430 	dev_info_t		*cdip = NULL;
2431 	ibnex_pseudo_node_t	*pseudo;
2432 	int			first_pi = 0;
2433 
2434 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_pi_pdip: %p, %p",
2435 	    nodep, hca_dip);
2436 
2437 	pseudo = &nodep->node_data.pseudo_node;
2438 
2439 	rval = mdi_pi_alloc(hca_dip,
2440 	    pseudo->pseudo_devi_name, pseudo->pseudo_node_addr,
2441 	    pseudo->pseudo_node_addr, 0, &pip);
2442 
2443 	if (rval != MDI_SUCCESS) {
2444 		IBTF_DPRINTF_L2("ibnex", "\tpseudo_create_pi_pdip:"
2445 		    " mdi_pi_alloc failed");
2446 		return (IBNEX_FAILURE);
2447 	}
2448 	cdip = mdi_pi_get_client(pip);
2449 
2450 	if (nodep->node_dip == NULL) {
2451 		IBTF_DPRINTF_L4("ibnex",
2452 		    "\tpseudo_create_pi: New dip %p", cdip);
2453 
2454 		first_pi = 1;
2455 		nodep->node_dip = cdip;
2456 		ddi_set_parent_data(cdip, nodep);
2457 	}
2458 
2459 	rval = mdi_pi_online(pip, 0);
2460 
2461 	if (rval != MDI_SUCCESS) {
2462 		IBTF_DPRINTF_L2("ibnex",
2463 		    "\tpseudo_create_pi: "
2464 		    "mdi_pi_online: failed for pseudo dip %p,"
2465 		    " rval %d", cdip, rval);
2466 		rval = IBNEX_FAILURE;
2467 		if (first_pi == 1) {
2468 			ddi_set_parent_data(cdip, NULL);
2469 			(void) ibnex_offline_childdip(cdip);
2470 			nodep->node_dip = NULL;
2471 		} else
2472 			(void) mdi_pi_free(pip, 0);
2473 	} else
2474 		rval = IBNEX_SUCCESS;
2475 	return (rval);
2476 }
2477 
2478 /*
2479  * ibnex_ioc_create_pi()
2480  *	Create a pathinfo node for the ioc node
2481  */
2482 static int
2483 ibnex_ioc_create_pi(ibdm_ioc_info_t *ioc_info, ibnex_node_data_t *node_data,
2484     dev_info_t *pdip, int *node_valid)
2485 {
2486 	mdi_pathinfo_t		*pip;
2487 	int			rval = DDI_FAILURE;
2488 	dev_info_t		*cdip = NULL;
2489 	int			create_prop = 0;
2490 	ibnex_ioc_node_t	*ioc = &node_data->node_data.ioc_node;
2491 
2492 	IBTF_DPRINTF_L4("ibnex",
2493 	    "\tibnex_ioc_create_pi(%p, %p, %p)", ioc_info, node_data, pdip);
2494 	*node_valid = 1;
2495 
2496 	/*
2497 	 * For CONFIG_ONE requests through HCA dip, alloc
2498 	 * for HCA dip driving BUS_CONFIG request.
2499 	 */
2500 	rval =  mdi_pi_alloc(pdip, IBNEX_IOC_CNAME, ioc->ioc_guid_str,
2501 	    ioc->ioc_phci_guid, 0, &pip);
2502 	if (rval != MDI_SUCCESS) {
2503 		IBTF_DPRINTF_L2("ibnex",
2504 		    "\tioc_create_pi: mdi_pi_alloc(%p, %s. %s) failed",
2505 		    pdip, ioc->ioc_guid_str, ioc->ioc_phci_guid);
2506 		return (IBNEX_FAILURE);
2507 	}
2508 	cdip = mdi_pi_get_client(pip);
2509 
2510 	IBTF_DPRINTF_L4("ibnex", "\tioc_create_pi: IOC dip %p",
2511 	    cdip);
2512 
2513 	if (node_data->node_dip == NULL) {
2514 		node_data->node_dip = cdip;
2515 		ddi_set_parent_data(cdip, node_data);
2516 		create_prop = 1;
2517 		IBTF_DPRINTF_L4("ibnex",
2518 		    "\tioc_create_pi: creating prop");
2519 		if ((rval = ibnex_create_ioc_node_prop(
2520 		    ioc_info, cdip)) != IBNEX_SUCCESS) {
2521 			IBTF_DPRINTF_L4("ibnex",
2522 			    "\tioc_create_pi: creating prop failed");
2523 			ibnex_delete_ioc_node_data(node_data);
2524 			*node_valid = 0;
2525 			ddi_prop_remove_all(cdip);
2526 			ddi_set_parent_data(cdip, NULL);
2527 
2528 			(void) ibnex_offline_childdip(cdip);
2529 			return (IBNEX_FAILURE);
2530 		}
2531 	}
2532 
2533 	rval = mdi_pi_online(pip, 0);
2534 
2535 	if (rval != MDI_SUCCESS) {
2536 		IBTF_DPRINTF_L2("ibnex", "\tioc_create_pi: "
2537 		    "mdi_pi_online() failed ioc dip %p, rval %d",
2538 		    cdip, rval);
2539 		rval = IBNEX_FAILURE;
2540 		if (create_prop) {
2541 			ddi_set_parent_data(cdip, NULL);
2542 			ddi_prop_remove_all(cdip);
2543 			ibnex_delete_ioc_node_data(node_data);
2544 			*node_valid = 0;
2545 			(void) ibnex_offline_childdip(cdip);
2546 		} else
2547 			(void) mdi_pi_free(pip, 0);
2548 	} else
2549 		rval = IBNEX_SUCCESS;
2550 
2551 	IBTF_DPRINTF_L4("ibnex", "\tioc_create_pi ret %x", rval);
2552 	return (rval);
2553 }
2554 
2555 
2556 /*
2557  * ibnex_create_ioc_node_prop()
2558  *	Create IOC device node properties
2559  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2560  */
2561 static int
2562 ibnex_create_ioc_node_prop(ibdm_ioc_info_t *ioc_info, dev_info_t *cdip)
2563 {
2564 	uint16_t		 capabilities;
2565 	ib_dm_ioc_ctrl_profile_t *ioc_profile = &ioc_info->ioc_profile;
2566 
2567 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_node_prop");
2568 
2569 	if (ibnex_create_ioc_compatible_prop(cdip,
2570 	    ioc_profile) != IBNEX_SUCCESS) {
2571 		return (IBNEX_FAILURE);
2572 	}
2573 	if ((ioc_info->ioc_iou_dc_valid) &&
2574 	    (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "iou-diagcode",
2575 	    ioc_info->ioc_iou_diagcode)) != DDI_PROP_SUCCESS) {
2576 		IBTF_DPRINTF_L2("ibnex",
2577 		    "\tcreate_ioc_node_prop: iou-diagcode create failed");
2578 		return (IBNEX_FAILURE);
2579 	}
2580 	if ((ioc_info->ioc_diagdeviceid) && (ioc_info->ioc_dc_valid)) {
2581 		if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "ioc-diagcode",
2582 		    ioc_info->ioc_diagcode) != DDI_PROP_SUCCESS) {
2583 			IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2584 			    "ioc-diagcode create failed");
2585 			return (IBNEX_FAILURE);
2586 		}
2587 	}
2588 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-queue-depth",
2589 	    ioc_profile->ioc_rdma_read_qdepth) != DDI_PROP_SUCCESS) {
2590 		IBTF_DPRINTF_L2("ibnex",
2591 		    "\tcreate_ioc_node_prop: rdma-queue-depth create failed");
2592 		return (IBNEX_FAILURE);
2593 	}
2594 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-transfer-size",
2595 	    ioc_profile->ioc_rdma_xfer_sz) != DDI_PROP_SUCCESS) {
2596 		IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2597 		    "rdma-transfer-size create failed");
2598 		return (IBNEX_FAILURE);
2599 	}
2600 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-message-size",
2601 	    ioc_profile->ioc_send_msg_sz) != DDI_PROP_SUCCESS) {
2602 		IBTF_DPRINTF_L2("ibnex",
2603 		    "\tcreate_ioc_node_prop: send-message-size create failed");
2604 		return (IBNEX_FAILURE);
2605 	}
2606 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-queue-depth",
2607 	    ioc_profile->ioc_send_msg_qdepth) != DDI_PROP_SUCCESS) {
2608 		IBTF_DPRINTF_L2("ibnex",
2609 		    "\tcreate_ioc_node_prop: send-queue-depth create failed");
2610 		return (IBNEX_FAILURE);
2611 	}
2612 
2613 	capabilities = (ioc_profile->ioc_ctrl_opcap_mask << 8);
2614 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip,
2615 	    "capabilities", capabilities) != DDI_PROP_SUCCESS) {
2616 		IBTF_DPRINTF_L2("ibnex",
2617 		    "\tcreate_ioc_node_prop: capabilities create failed");
2618 		return (IBNEX_FAILURE);
2619 	}
2620 	if (ndi_prop_update_string(DDI_DEV_T_NONE, cdip, "id-string",
2621 	    (char *)ioc_profile->ioc_id_string) != DDI_PROP_SUCCESS) {
2622 		IBTF_DPRINTF_L2("ibnex",
2623 		    "\tcreate_ioc_node_prop: id-string failed");
2624 		return (IBNEX_FAILURE);
2625 	}
2626 
2627 	/*
2628 	 * Create properties to represent all the service entries supported
2629 	 * by the IOC. Each service entry consists of 1) Service ID (64 bits)
2630 	 * and 2) Service name (40 bytes). The service entry table is
2631 	 * represented by two properties, service-ids and service-names. The
2632 	 * service-id property is a array of int64's and service names is
2633 	 * array of strings. The first element in the "service-ids" property
2634 	 * corresponds to first string in the "service-names" and so on.
2635 	 */
2636 	if ((ioc_profile->ioc_service_entries != 0) &&
2637 	    (ibnex_create_ioc_srv_props(cdip, ioc_info) != IBNEX_SUCCESS))
2638 		return (IBNEX_FAILURE);
2639 
2640 	/* Create destination port GID properties */
2641 	if (ibnex_create_ioc_portgid_prop(cdip, ioc_info) != IBNEX_SUCCESS)
2642 		return (IBNEX_FAILURE);
2643 
2644 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol-version",
2645 	    ioc_profile->ioc_protocol_ver) != DDI_PROP_SUCCESS) {
2646 		IBTF_DPRINTF_L2("ibnex",
2647 		    "\tcreate_ioc_node_prop: protocol-version create failed");
2648 		return (IBNEX_FAILURE);
2649 	}
2650 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol",
2651 	    ioc_profile->ioc_protocol) != DDI_PROP_SUCCESS) {
2652 		IBTF_DPRINTF_L2("ibnex",
2653 		    "\tcreate_ioc_node_prop: protocol create failed");
2654 		return (IBNEX_FAILURE);
2655 	}
2656 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-subclass",
2657 	    ioc_profile->ioc_io_subclass) != DDI_PROP_SUCCESS) {
2658 		IBTF_DPRINTF_L2("ibnex",
2659 		    "\tcreate_ioc_node_prop: subclass create failed");
2660 		return (IBNEX_FAILURE);
2661 	}
2662 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-class",
2663 	    ioc_profile->ioc_io_class) != DDI_PROP_SUCCESS) {
2664 		IBTF_DPRINTF_L2("ibnex",
2665 		    "\tcreate_ioc_node_prop: class prop create failed");
2666 		return (IBNEX_FAILURE);
2667 	}
2668 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-id",
2669 	    ioc_profile->ioc_subsys_id) != DDI_PROP_SUCCESS) {
2670 		IBTF_DPRINTF_L2("ibnex",
2671 		    "\tcreate_ioc_node_prop: subsys_id create failed");
2672 		return (IBNEX_FAILURE);
2673 	}
2674 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-vendor-id",
2675 	    ioc_profile->ioc_subsys_vendorid) != DDI_PROP_SUCCESS) {
2676 		IBTF_DPRINTF_L2("ibnex",
2677 		    "\tcreate_ioc_node_prop: subsystem vendor create failed");
2678 		return (IBNEX_FAILURE);
2679 	}
2680 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, cdip, "ioc-guid",
2681 	    ioc_profile->ioc_guid) != DDI_PROP_SUCCESS) {
2682 		IBTF_DPRINTF_L2("ibnex",
2683 		    "\tcreate_ioc_node_prop: protocol create failed");
2684 		return (IBNEX_FAILURE);
2685 	}
2686 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-version",
2687 	    ioc_profile->ioc_device_ver) != DDI_PROP_SUCCESS) {
2688 		IBTF_DPRINTF_L2("ibnex",
2689 		    "\tcreate_ioc_node_prop: product-id create failed");
2690 		return (IBNEX_FAILURE);
2691 	}
2692 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-id",
2693 	    ioc_profile->ioc_deviceid) != DDI_PROP_SUCCESS) {
2694 		IBTF_DPRINTF_L2("ibnex",
2695 		    "\tcreate_ioc_node_prop: product-id create failed");
2696 		return (IBNEX_FAILURE);
2697 	}
2698 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "vendor-id",
2699 	    ioc_profile->ioc_vendorid) != DDI_PROP_SUCCESS) {
2700 		IBTF_DPRINTF_L2("ibnex",
2701 		    "\tcreate_ioc_node_prop: vendor-id create failed");
2702 		return (IBNEX_FAILURE);
2703 	}
2704 	return (IBNEX_SUCCESS);
2705 }
2706 
2707 
2708 /*
2709  * ibnex_create_ioc_portgid_prop()
2710  *	Creates "port-entries", "port-list" properties
2711  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2712  */
2713 static int
2714 ibnex_create_ioc_portgid_prop(
2715     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2716 {
2717 	uint64_t	*port_gids;
2718 	int		length, ii, jj;
2719 	int		prop_len;
2720 	ibnex_node_data_t *node_data;
2721 
2722 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_portgid_prop");
2723 
2724 	node_data = ddi_get_parent_data(cdip);
2725 	ASSERT(node_data);
2726 
2727 	prop_len = (ioc_info->ioc_nportgids != 0) ?
2728 	    (2 * ioc_info->ioc_nportgids) : 1;
2729 	length = sizeof (uint64_t) * prop_len;
2730 	port_gids = kmem_zalloc(length, KM_SLEEP);
2731 
2732 	for (ii = 0, jj = 0; ii < ioc_info->ioc_nportgids; ii++) {
2733 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_hi;
2734 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_lo;
2735 	}
2736 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip, "port-list",
2737 	    (int64_t *)port_gids, prop_len) != DDI_PROP_SUCCESS) {
2738 		IBTF_DPRINTF_L2("ibnex",
2739 		    "\tcreate_ioc_portgid_prop: port-list create failed");
2740 		kmem_free(port_gids, length);
2741 		return (IBNEX_FAILURE);
2742 	}
2743 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "port-entries",
2744 	    ioc_info->ioc_nportgids) != DDI_PROP_SUCCESS) {
2745 		IBTF_DPRINTF_L2("ibnex",
2746 		    "\tcreate_ioc_portgid_prop: port-entries create failed");
2747 		kmem_free(port_gids, length);
2748 		return (IBNEX_FAILURE);
2749 	}
2750 
2751 	kmem_free(port_gids, length);
2752 	return (IBNEX_SUCCESS);
2753 }
2754 
2755 
2756 /*
2757  * ibnex_create_ioc_srv_props()
2758  *	Creates "service-name" and "service-id" properties
2759  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2760  */
2761 static int
2762 ibnex_create_ioc_srv_props(
2763     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2764 {
2765 	int			length, ii;
2766 	uint64_t		*srv_id;
2767 	char			*temp, *srv_names[IB_DM_MAX_IOCS_IN_IOU];
2768 	ib_dm_ioc_ctrl_profile_t *profile = &ioc_info->ioc_profile;
2769 	ibdm_srvents_info_t	 *srvents = ioc_info->ioc_serv;
2770 
2771 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props");
2772 
2773 	length = profile->ioc_service_entries * sizeof (ib_dm_srv_t);
2774 	srv_id = kmem_zalloc(length, KM_SLEEP);
2775 	temp = (char *)((char *)srv_id + (8 * profile->ioc_service_entries));
2776 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2777 		srv_names[ii] = (char *)temp + (ii * IB_DM_MAX_SVC_NAME_LEN);
2778 	}
2779 
2780 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2781 		srv_id[ii] = srvents[ii].se_attr.srv_id;
2782 		bcopy(srvents[ii].se_attr.srv_name,
2783 		    srv_names[ii], (IB_DM_MAX_SVC_NAME_LEN - 1));
2784 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2785 		    "Service Names : %s", srv_names[ii]);
2786 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2787 		    "Service ID : %llX", srv_id[ii]);
2788 	}
2789 
2790 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip,
2791 	    "service-id", (int64_t *)srv_id,
2792 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2793 		IBTF_DPRINTF_L2("ibnex",
2794 		    "\tcreate_ioc_srv_props: service-id create failed");
2795 		kmem_free(srv_id, length);
2796 		return (IBNEX_FAILURE);
2797 	}
2798 
2799 	if (ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2800 	    "service-name", (char **)srv_names,
2801 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2802 		IBTF_DPRINTF_L2("ibnex",
2803 		    "\tcreate_ioc_srv_props: service-name create failed");
2804 		kmem_free(srv_id, length);
2805 		return (IBNEX_FAILURE);
2806 	}
2807 	kmem_free(srv_id, length);
2808 	return (IBNEX_SUCCESS);
2809 }
2810 
2811 
2812 /*
2813  * ibnex_create_ioc_compatible_prop()
2814  *	Creates "compatible" property values
2815  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2816  */
2817 static int
2818 ibnex_create_ioc_compatible_prop(
2819     dev_info_t *cdip, ib_dm_ioc_ctrl_profile_t *ioc_profile)
2820 {
2821 	char		*temp;
2822 	int		rval, ii;
2823 	char		*compatible[IBNEX_MAX_COMPAT_NAMES];
2824 
2825 	/*
2826 	 * Initialize the "compatible" property string as below:
2827 	 * Compatible Strings :
2828 	 *	1. ib.V<vid>P<pid>S<subsys vid>s<subsys id>v<ver>
2829 	 *	2. ib.V<vid>P<pid>S<subsys vid>s<subsys id>
2830 	 *	3. ib.V<vid>P<pid>v<ver>
2831 	 *	4. ib.V<vid>P<pid>
2832 	 *	5. ib.C<Class>c<Subclass>p<protocol>r<protocol ver>
2833 	 *	6. ib.C<Class>c<Subclass>p<protocol>
2834 	 *
2835 	 * Note:
2836 	 *	All leading zeros must be present
2837 	 *	All numeric values must specified in hex without prefix "0x"
2838 	 */
2839 
2840 	temp = kmem_alloc(IBNEX_MAX_COMPAT_PROP_SZ, KM_SLEEP);
2841 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2842 		compatible[ii] = temp + (ii * IBNEX_MAX_COMPAT_LEN);
2843 
2844 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
2845 	    "ib.V%06xP%08xS%06xs%08xv%04x",
2846 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2847 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id,
2848 	    ioc_profile->ioc_device_ver);
2849 
2850 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
2851 	    "ib.V%06xP%08xS%06xs%08x",
2852 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2853 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id);
2854 
2855 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
2856 	    "ib.V%06xP%08xv%04x",
2857 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2858 	    ioc_profile->ioc_device_ver);
2859 
2860 	(void) snprintf(compatible[3], IBNEX_MAX_COMPAT_LEN,
2861 	    "ib.V%06xP%08x",
2862 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid);
2863 
2864 	(void) snprintf(compatible[4], IBNEX_MAX_COMPAT_LEN,
2865 	    "ib.C%04xc%04xp%04xr%04x",
2866 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2867 	    ioc_profile->ioc_protocol, ioc_profile->ioc_protocol_ver);
2868 
2869 	(void) snprintf(compatible[5], IBNEX_MAX_COMPAT_LEN,
2870 	    "ib.C%04xc%04xp%04x",
2871 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2872 	    ioc_profile->ioc_protocol);
2873 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2874 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[ii]);
2875 
2876 	/* Create the compatible property for child cdip */
2877 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2878 	    "compatible", (char **)compatible, IBNEX_MAX_COMPAT_NAMES);
2879 
2880 	if (rval != DDI_PROP_SUCCESS) {
2881 		IBTF_DPRINTF_L2("ibnex", "\tcompatible prop_create failed");
2882 		kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2883 		return (IBNEX_FAILURE);
2884 	}
2885 
2886 	kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2887 	return (IBNEX_SUCCESS);
2888 }
2889 
2890 
2891 static void
2892 ibnex_ioc_node_cleanup()
2893 {
2894 	ibnex_node_data_t *node, *delete;
2895 
2896 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2897 	for (node = ibnex.ibnex_ioc_node_head; node; ) {
2898 		delete = node;
2899 		node = node->node_next;
2900 		mutex_exit(&ibnex.ibnex_mutex);
2901 		ibnex_delete_ioc_node_data(delete);
2902 		mutex_enter(&ibnex.ibnex_mutex);
2903 	}
2904 }
2905 
2906 /*
2907  * ibnex_delete_ioc_node_data()
2908  *	Delete IOC node from the list
2909  */
2910 static void
2911 ibnex_delete_ioc_node_data(ibnex_node_data_t *node)
2912 {
2913 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data:");
2914 
2915 	mutex_enter(&ibnex.ibnex_mutex);
2916 	if ((node->node_next == NULL) && (node->node_prev == NULL)) {
2917 		ASSERT(ibnex.ibnex_ioc_node_head == node);
2918 		ibnex.ibnex_ioc_node_head = NULL;
2919 	} else if (node->node_next == NULL)
2920 		node->node_prev->node_next = NULL;
2921 	else if (node->node_prev == NULL) {
2922 		node->node_next->node_prev = NULL;
2923 		ibnex.ibnex_ioc_node_head = node->node_next;
2924 	} else {
2925 		node->node_prev->node_next = node->node_next;
2926 		node->node_next->node_prev = node->node_prev;
2927 	}
2928 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data: head %p",
2929 	    ibnex.ibnex_ioc_node_head);
2930 	mutex_exit(&ibnex.ibnex_mutex);
2931 	kmem_free(node, sizeof (ibnex_node_data_t));
2932 }
2933 
2934 
2935 /*
2936  * ibnex_dm_callback()
2937  *
2938  *	This routine is registered with the IBDM during IB nexus attach. It
2939  *	is called by the IBDM module when it discovers
2940  *		New HCA port
2941  *		HCA port removal
2942  *		New HCA added
2943  *		HCA removed
2944  */
2945 void
2946 ibnex_dm_callback(void *arg, ibdm_events_t flag)
2947 {
2948 	char	hca_guid[IBNEX_HCAGUID_STRSZ];
2949 	ibdm_ioc_info_t	*ioc_list, *ioc;
2950 	ibnex_node_data_t	*node_data;
2951 
2952 	IBTF_DPRINTF_L4("ibnex", "\tdm_callback: attr %p event %x", arg, flag);
2953 
2954 	switch (flag) {
2955 	case IBDM_EVENT_HCA_ADDED:
2956 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2957 		    (*(longlong_t *)arg));
2958 		/* Create a devctl minor node for the HCA's port  */
2959 		if (ddi_create_minor_node(ibnex.ibnex_dip, hca_guid, S_IFCHR,
2960 		    ddi_get_instance(ibnex.ibnex_dip),
2961 		    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
2962 			IBTF_DPRINTF_L4("ibnex", "\tdm_callback: failed to "
2963 			    "create minor node for port w/ guid %s", hca_guid);
2964 		}
2965 
2966 		break;
2967 
2968 	case IBDM_EVENT_HCA_REMOVED:
2969 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2970 		    (*(longlong_t *)arg));
2971 		ddi_remove_minor_node(ibnex.ibnex_dip, hca_guid);
2972 		break;
2973 
2974 	case IBDM_EVENT_IOC_PROP_UPDATE:
2975 		ioc = ioc_list = (ibdm_ioc_info_t *)arg;
2976 		if (ioc_list == NULL)
2977 			break;
2978 
2979 		mutex_enter(&ibnex.ibnex_mutex);
2980 		while (ioc_list) {
2981 			if ((node_data = ibnex_is_node_data_present(
2982 			    IBNEX_IOC_NODE, ioc_list, 0, 0)) != NULL &&
2983 			    node_data->node_dip != NULL) {
2984 				ibnex_update_prop(node_data, ioc_list);
2985 			}
2986 			ioc_list = ioc_list->ioc_next;
2987 		}
2988 		mutex_exit(&ibnex.ibnex_mutex);
2989 		ibdm_ibnex_free_ioc_list(ioc);
2990 	}
2991 }
2992 
2993 
2994 /*
2995  * ibnex_get_dip_from_guid()
2996  *
2997  *	Searches the linked list of the port nodes and returns the dip for
2998  *	the of the Port / Node guid requested.
2999  *	Returns NULL if not found
3000  */
3001 int
3002 ibnex_get_dip_from_guid(ib_guid_t guid, int index, ib_pkey_t pkey,
3003     dev_info_t **dip)
3004 {
3005 	int			node_index;
3006 	ib_guid_t		node_guid;
3007 	ib_pkey_t		node_pkey;
3008 	ibnex_node_data_t	*node_data;
3009 
3010 	IBTF_DPRINTF_L4("ibnex",
3011 	    "\tget_dip_from_guid: guid = %llX", guid);
3012 
3013 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3014 	/* Search for a matching entry in internal lists */
3015 	node_data = ibnex.ibnex_port_node_head;
3016 	while (node_data) {
3017 		node_guid = node_data->node_data.port_node.port_guid;
3018 		node_index = node_data->node_data.port_node.port_commsvc_idx;
3019 		node_pkey = node_data->node_data.port_node.port_pkey;
3020 		if ((node_guid == guid) && (index == node_index) &&
3021 		    (node_pkey == pkey)) {
3022 			break;
3023 		}
3024 		node_data = node_data->node_next;
3025 	}
3026 
3027 	/* matching found with a valid dip */
3028 	if (node_data && node_data->node_dip) {
3029 		*dip = node_data->node_dip;
3030 		return (IBNEX_SUCCESS);
3031 	} else if (node_data && !node_data->node_dip) {	/* dip is invalid */
3032 		*dip = NULL;
3033 		return (IBNEX_SUCCESS);
3034 	}
3035 
3036 	/* no match found */
3037 	*dip = NULL;
3038 	return (IBNEX_FAILURE);
3039 }
3040 
3041 
3042 /*
3043  * ibnex_comm_svc_init()
3044  *	Read the property and cache the values in the global
3045  *	structure.
3046  *	Check for max allowed length (4 bytes) of service name
3047  *	(each element of the property)
3048  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3049  */
3050 static ibnex_rval_t
3051 ibnex_comm_svc_init(char *property, ibnex_node_type_t type)
3052 {
3053 	int		i, len, count;
3054 	int		ncomm_svcs;
3055 	char		**comm_svcp;
3056 	char		**servicep = NULL;
3057 	uint_t		nservices = 0;
3058 	int			*valid = NULL;
3059 
3060 	IBTF_DPRINTF_L4("ibnex", "\tcomm_svc_init : %s property, type = %x",
3061 	    property, type);
3062 
3063 	/* lookup the string array property */
3064 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, ibnex.ibnex_dip,
3065 	    DDI_PROP_DONTPASS, property, &servicep, &nservices) !=
3066 	    DDI_PROP_SUCCESS) {
3067 		IBTF_DPRINTF_L2("ibnex", "\t%s property undefined", property);
3068 		return (IBNEX_SUCCESS);
3069 	}
3070 
3071 	if (nservices)
3072 		valid = kmem_zalloc(nservices * sizeof (int), KM_SLEEP);
3073 
3074 
3075 	/* first read the file to get a count of valid service entries */
3076 	for (ncomm_svcs = 0, count = 0; count < nservices; count++) {
3077 		int j;
3078 
3079 		len = strlen(servicep[count]);
3080 		/*
3081 		 * ib.conf has NULL strings for port-svc-list &
3082 		 * hca-svc-list, by default. Do not have L2 message
3083 		 * for these.
3084 		 */
3085 		if (len == 1 || len > 4) {
3086 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3087 			    "Service name %s for property %s invalid : "
3088 			    "length %d", servicep[count], property, len);
3089 			continue;
3090 		} else if (len == 0) {
3091 			continue;
3092 		}
3093 		if (ibnex_unique_svcname(servicep[count]) != IBNEX_SUCCESS) {
3094 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3095 			    "Service name %s invalid : Not unique",
3096 			    servicep[count]);
3097 			continue;
3098 		}
3099 
3100 		/*
3101 		 * ibnex_unique_svcname checks for uniqueness in service names
3102 		 * communication services fully initialized. Check uniqueness
3103 		 * in service names currently initialized.
3104 		 */
3105 		for (j = 0; j < count; j++)
3106 			if (valid[j] && strncmp(servicep[count],
3107 			    servicep[j], 4) == 0) {
3108 				IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3109 				    "Service name %s invalid : Not unique",
3110 				    servicep[count]);
3111 					continue;
3112 			}
3113 
3114 		valid[count] = 1;
3115 		ncomm_svcs++;
3116 	}
3117 
3118 	/* if no valid entries found, bailout */
3119 	if (nservices == 0 || ncomm_svcs == 0) {
3120 		IBTF_DPRINTF_L4("ibnex", "\tNo %s entries found", property);
3121 		ddi_prop_free(servicep); /* free the property */
3122 		if (valid)
3123 			kmem_free(valid, nservices * sizeof (int));
3124 		return (IBNEX_SUCCESS);
3125 	}
3126 
3127 	comm_svcp = kmem_zalloc((ncomm_svcs * sizeof (char *)), KM_SLEEP);
3128 	if (type == IBNEX_PORT_COMMSVC_NODE) {
3129 		ibnex.ibnex_comm_svc_names = comm_svcp;
3130 		ibnex.ibnex_num_comm_svcs = ncomm_svcs;
3131 	} else if (type == IBNEX_VPPA_COMMSVC_NODE) {
3132 		ibnex.ibnex_vppa_comm_svc_names = comm_svcp;
3133 		ibnex.ibnex_nvppa_comm_svcs = ncomm_svcs;
3134 	} else if (type == IBNEX_HCASVC_COMMSVC_NODE) {
3135 		ibnex.ibnex_hcasvc_comm_svc_names = comm_svcp;
3136 		ibnex.ibnex_nhcasvc_comm_svcs = ncomm_svcs;
3137 	}
3138 
3139 	/* copy the services into an array of strings */
3140 	for (i = 0, count = 0; count < nservices; count++) {
3141 		if (valid[count] == 0)	/* Skip invalid ones */
3142 			continue;
3143 		comm_svcp[i] = kmem_alloc(len + 1, KM_SLEEP);
3144 		(void) strcpy(comm_svcp[i], servicep[count]);
3145 		IBTF_DPRINTF_L4("ibnex",
3146 		    "\t\tService [%d]: %s", i, comm_svcp[i]);
3147 		++i;
3148 	}
3149 	ddi_prop_free(servicep);
3150 	kmem_free(valid, nservices * sizeof (int));
3151 	return (IBNEX_SUCCESS);
3152 }
3153 
3154 
3155 /*
3156  * ibnex_comm_svc_fini()
3157  *	Deallocate all the memory allocated for the communication
3158  *	service arrays.
3159  */
3160 static void
3161 ibnex_comm_svc_fini()
3162 {
3163 	int	index;
3164 
3165 	for (index = 0; index < ibnex.ibnex_num_comm_svcs; index++) {
3166 		kmem_free(ibnex.ibnex_comm_svc_names[index],
3167 		    (strlen(ibnex.ibnex_comm_svc_names[index]) + 1));
3168 	}
3169 	if (ibnex.ibnex_comm_svc_names) {
3170 		kmem_free(ibnex.ibnex_comm_svc_names,
3171 		    ibnex.ibnex_num_comm_svcs * sizeof (char *));
3172 	}
3173 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
3174 		kmem_free(ibnex.ibnex_vppa_comm_svc_names[index],
3175 		    strlen(ibnex.ibnex_vppa_comm_svc_names[index]) +1);
3176 	}
3177 	if (ibnex.ibnex_vppa_comm_svc_names) {
3178 		kmem_free(ibnex.ibnex_vppa_comm_svc_names,
3179 		    ibnex.ibnex_nvppa_comm_svcs * sizeof (char *));
3180 	}
3181 	for (index = 0; index < ibnex.ibnex_nhcasvc_comm_svcs; index++) {
3182 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names[index],
3183 		    strlen(ibnex.ibnex_hcasvc_comm_svc_names[index]) +1);
3184 	}
3185 	if (ibnex.ibnex_hcasvc_comm_svc_names) {
3186 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names,
3187 		    ibnex.ibnex_nhcasvc_comm_svcs * sizeof (char *));
3188 	}
3189 	ibnex.ibnex_comm_svc_names = NULL;
3190 	ibnex.ibnex_num_comm_svcs = 0;
3191 	ibnex.ibnex_vppa_comm_svc_names = NULL;
3192 	ibnex.ibnex_nvppa_comm_svcs = 0;
3193 	ibnex.ibnex_hcasvc_comm_svc_names = NULL;
3194 	ibnex.ibnex_nhcasvc_comm_svcs = 0;
3195 }
3196 
3197 
3198 /*
3199  * ibnex_commsvc_initnode()
3200  *	This routine is specific to port/VPPA node creation
3201  *	Creates a device node for the comm service specified by commsvc_index
3202  *	Creates all the device node properties
3203  *	Allocates and initializes the node specific data
3204  *	Binds the device driver of the device node
3205  *	Returns "dev_info_t" of the child node or NULL in case of failure
3206  *	Sets IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY in "rval" to reflect
3207  *	if the operation was successful, failed or was not performed.
3208  */
3209 dev_info_t *
3210 ibnex_commsvc_initnode(dev_info_t *parent, ibdm_port_attr_t *port_attr,
3211     int index, int node_type, ib_pkey_t pkey, int *rval, int flag)
3212 {
3213 	int			ret;
3214 	char			*svcname;
3215 	dev_info_t		*cdip;
3216 	ibnex_node_data_t	*node_data;
3217 	ibnex_port_node_t	*port_node;
3218 	char devname[MAXNAMELEN];
3219 	int 			cdip_allocated = 0;
3220 
3221 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3222 
3223 	*rval = IBNEX_SUCCESS;
3224 
3225 	/*
3226 	 * prevent any races
3227 	 * we have seen this node_data and it has been initialized
3228 	 * Note that node_dip is already NULL if unconfigure is in
3229 	 * progress.
3230 	 */
3231 	node_data = ibnex_is_node_data_present(node_type, (void *)port_attr,
3232 	    index, pkey);
3233 
3234 	/*
3235 	 * If this node has been explicity unconfigured by cfgadm, then it can
3236 	 * be configured back again only by cfgadm configure.
3237 	 */
3238 	if (node_data && (node_data->node_ap_state ==
3239 	    IBNEX_NODE_AP_UNCONFIGURED)) {
3240 		*rval = IBNEX_FAILURE;
3241 		return (NULL);
3242 	}
3243 
3244 	if (node_data && node_data->node_dip) {
3245 		/*
3246 		 * Return NULL if another configure
3247 		 * operation is in progress
3248 		 */
3249 		if (node_data->node_state == IBNEX_CFGADM_CONFIGURING) {
3250 			*rval = IBNEX_BUSY;
3251 			return (NULL);
3252 		} else {
3253 			return (node_data->node_dip);
3254 		}
3255 	} else if (node_data == NULL) {
3256 		/* allocate a new ibnex_node_data_t */
3257 		node_data = ibnex_init_child_nodedata(node_type, port_attr,
3258 		    index, pkey);
3259 		node_data->node_data.port_node.port_pdip = parent;
3260 	}
3261 
3262 	/*
3263 	 * Return NULL if another unconfigure operation is in progress
3264 	 */
3265 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
3266 		*rval = IBNEX_BUSY;
3267 		return (NULL);
3268 	}
3269 
3270 	ASSERT(node_data->node_state != IBNEX_CFGADM_CONFIGURED);
3271 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3272 
3273 	switch (node_type) {
3274 		case IBNEX_VPPA_COMMSVC_NODE :
3275 			svcname = ibnex.ibnex_vppa_comm_svc_names[index];
3276 			port_node = &node_data->node_data.port_node;
3277 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,%x,%s",
3278 			    IBNEX_IBPORT_CNAME, port_node->port_num,
3279 			    port_node->port_pkey, svcname);
3280 			break;
3281 		case IBNEX_HCASVC_COMMSVC_NODE :
3282 			svcname = ibnex.ibnex_hcasvc_comm_svc_names[index];
3283 			port_node = &node_data->node_data.port_node;
3284 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,0,%s",
3285 			    IBNEX_IBPORT_CNAME, port_node->port_num, svcname);
3286 			break;
3287 		case IBNEX_PORT_COMMSVC_NODE :
3288 			svcname = ibnex.ibnex_comm_svc_names[index];
3289 			port_node = &node_data->node_data.port_node;
3290 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,0,%s",
3291 			    IBNEX_IBPORT_CNAME, port_node->port_num, svcname);
3292 			break;
3293 		default :
3294 			IBTF_DPRINTF_L2("ibnex", "\tcommsvc_initnode:"
3295 			    "\tInvalid Node type");
3296 			*rval = IBNEX_FAILURE;
3297 			ibnex_delete_port_node_data(node_data);
3298 			return (NULL);
3299 	}
3300 
3301 	if ((cdip = ndi_devi_findchild(parent, devname)) != NULL) {
3302 		if (i_ddi_devi_attached(cdip)) {
3303 			node_data->node_dip	= cdip;
3304 			node_data->node_data.port_node.port_pdip = parent;
3305 			node_data->node_state = IBNEX_CFGADM_CONFIGURED;
3306 			ddi_set_parent_data(cdip, node_data);
3307 			IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: found "
3308 			    "attached cdip 0x%p for devname %s", cdip, devname);
3309 			return (cdip);
3310 		}
3311 	} else {
3312 		ndi_devi_alloc_sleep(parent,
3313 		    IBNEX_IBPORT_CNAME, (pnode_t)DEVI_SID_NODEID, &cdip);
3314 		cdip_allocated = 1;
3315 	}
3316 
3317 	node_data->node_dip	= cdip;
3318 	ddi_set_parent_data(cdip, node_data);
3319 	mutex_exit(&ibnex.ibnex_mutex);
3320 
3321 
3322 	if (ibnex_create_port_node_prop(port_attr, cdip, svcname, pkey) ==
3323 	    IBNEX_SUCCESS) {
3324 		if (flag == IBNEX_DEVFS_ENUMERATE)
3325 			ret = ndi_devi_bind_driver(cdip, 0);
3326 		else
3327 			ret = ndi_devi_online(cdip, 0);
3328 		if (ret == NDI_SUCCESS) {
3329 			mutex_enter(&ibnex.ibnex_mutex);
3330 			node_data->node_state	= IBNEX_CFGADM_CONFIGURED;
3331 			node_data->node_data.port_node.port_pdip = parent;
3332 			return (cdip);
3333 		}
3334 		IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: BIND/ONLINE "
3335 		    "of cdip 0x%p for devname %s and flag %d failed", cdip,
3336 		    devname, flag);
3337 	}
3338 
3339 	*rval = IBNEX_FAILURE;
3340 	node_data->node_dip = NULL;
3341 	ddi_set_parent_data(cdip, NULL);
3342 	if (cdip_allocated)
3343 		(void) ndi_devi_free(cdip);
3344 	mutex_enter(&ibnex.ibnex_mutex);
3345 	IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: failure exit");
3346 	return (NULL);
3347 }
3348 
3349 
3350 /*
3351  * ibnex_create_port_node_prop()
3352  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3353  */
3354 static int
3355 ibnex_create_port_node_prop(ibdm_port_attr_t *port_attr,
3356     dev_info_t *child_dip, char *srvname, ib_pkey_t pkey)
3357 {
3358 	if (ibnex_create_port_compatible_prop(child_dip,
3359 	    srvname, port_attr) != DDI_PROP_SUCCESS) {
3360 		IBTF_DPRINTF_L2("ibnex",
3361 		    "\tcreate_port_node_prop: compatible update failed");
3362 		return (IBNEX_FAILURE);
3363 	}
3364 	if ((pkey != 0) && (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3365 	    "port-pkey", pkey) != DDI_PROP_SUCCESS)) {
3366 		IBTF_DPRINTF_L2("ibnex",
3367 		    "\tcreate_port_node_prop: port-num update failed");
3368 		return (IBNEX_FAILURE);
3369 	}
3370 
3371 	/*
3372 	 * For HCA_SVC device nodes, port_num will be 0.
3373 	 * Do not create the "port-number" & "port-guid" properties.
3374 	 */
3375 	if (port_attr->pa_port_num != 0) {
3376 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3377 		    "port-number", port_attr->pa_port_num) !=
3378 		    DDI_PROP_SUCCESS) {
3379 			IBTF_DPRINTF_L2("ibnex",
3380 			    "\tcreate_port_node_prop: port-num update failed");
3381 			return (IBNEX_FAILURE);
3382 		}
3383 		if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3384 		    "port-guid", port_attr->pa_port_guid) !=
3385 		    DDI_PROP_SUCCESS) {
3386 			IBTF_DPRINTF_L2("ibnex",
3387 			    "\tcreate_port_node_prop: port-guid update failed");
3388 			return (IBNEX_FAILURE);
3389 		}
3390 	} else {
3391 		ibdm_hca_list_t	*hca_list;
3392 
3393 		/*
3394 		 * HCA_SVC nodes require "num-ports" & "port-guids"
3395 		 * properties.
3396 		 *
3397 		 * To create the num-ports & port-guids attribute :
3398 		 * 1. Get HCA list (ibdm_ibnex_get_hca_info_by_guid)
3399 		 * 2. Form the array of port GUIDs.
3400 		 */
3401 		if ((hca_list = ibdm_ibnex_get_hca_info_by_guid(
3402 		    port_attr->pa_hca_guid)) == NULL) {
3403 			IBTF_DPRINTF_L2("ibnex",
3404 			    "\tcreate_port_node_prop: hca_info_by_guid failed");
3405 			return (IBNEX_FAILURE);
3406 		}
3407 
3408 		if (hca_list->hl_nports != 0) {
3409 			ib_guid_t	*port_guids;
3410 			uint8_t		portnum;
3411 
3412 			ASSERT(hca_list->hl_port_attr != NULL);
3413 
3414 			port_guids = kmem_zalloc(
3415 			    hca_list->hl_nports * sizeof (ib_guid_t),
3416 			    KM_SLEEP);
3417 
3418 			for (portnum = 0; portnum < hca_list->hl_nports;
3419 			    portnum++) {
3420 				port_guids[portnum] = (hca_list->
3421 				    hl_port_attr[portnum]).pa_port_guid;
3422 			}
3423 
3424 			if (ndi_prop_update_int64_array(DDI_DEV_T_NONE,
3425 			    child_dip, "port-guids", (int64_t *)port_guids,
3426 			    hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3427 				IBTF_DPRINTF_L2("ibnex",
3428 				    "\tcreate_port_node_prop: port-guids "
3429 				    "create failed");
3430 				kmem_free(port_guids, hca_list->hl_nports *
3431 				    sizeof (ib_guid_t));
3432 				ibdm_ibnex_free_hca_list(hca_list);
3433 				return (IBNEX_FAILURE);
3434 			}
3435 			kmem_free(port_guids, hca_list->hl_nports *
3436 			    sizeof (ib_guid_t));
3437 		}
3438 
3439 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3440 		    "num-ports", hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3441 			IBTF_DPRINTF_L2("ibnex",
3442 			    "\tcreate_port_node_prop: num-ports update failed");
3443 			ibdm_ibnex_free_hca_list(hca_list);
3444 			return (IBNEX_FAILURE);
3445 		}
3446 		ibdm_ibnex_free_hca_list(hca_list);
3447 	}
3448 
3449 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3450 	    "hca-guid", port_attr->pa_hca_guid) != DDI_PROP_SUCCESS) {
3451 		IBTF_DPRINTF_L2("ibnex",
3452 		    "\tcreate_port_node_prop: hca-guid update failed");
3453 		return (IBNEX_FAILURE);
3454 	}
3455 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3456 	    "product-id", port_attr->pa_productid) != DDI_PROP_SUCCESS) {
3457 		IBTF_DPRINTF_L2("ibnex",
3458 		    "\tcreate_port_node_prop: product-id update failed");
3459 		return (IBNEX_FAILURE);
3460 	}
3461 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3462 	    "vendor-id", port_attr->pa_vendorid) != DDI_PROP_SUCCESS) {
3463 		IBTF_DPRINTF_L2("ibnex",
3464 		    "\tcreate_port_node_prop: vendor-id update failed");
3465 		return (IBNEX_FAILURE);
3466 	}
3467 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip, "device-version",
3468 	    port_attr->pa_dev_version) != DDI_PROP_SUCCESS) {
3469 		IBTF_DPRINTF_L2("ibnex",
3470 		    "\tcreate_port_node_prop: device-version update failed");
3471 		return (IBNEX_FAILURE);
3472 	}
3473 	return (IBNEX_SUCCESS);
3474 }
3475 
3476 
3477 /*
3478  * ibnex_str2int()
3479  *	Utility function that converts a string of length  "len" to
3480  *	integer.
3481  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3482  */
3483 static int
3484 ibnex_str2int(char *c, int len, int *ret)
3485 {
3486 	int intval = 0, ii;
3487 
3488 	IBTF_DPRINTF_L4("ibnex", "\tstr2int: Int string %s..", c);
3489 	*ret = IBNEX_SUCCESS;
3490 	for (ii = 0; ii < len; ii ++) {
3491 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3492 			intval = intval * 10 +c[ii] - '0';
3493 		else {
3494 			IBTF_DPRINTF_L2("ibnex",
3495 			    "\tstr2int: Invalid integer string %s..", c);
3496 			*ret = IBNEX_FAILURE;
3497 			break;
3498 		}
3499 	}
3500 
3501 	return (intval);
3502 }
3503 
3504 
3505 /*
3506  * ibnex_str2hex()
3507  *	Utility functions that converts a string of length  "len" to
3508  *	hex value. Note. This function does not handle strings which
3509  *	string length more than 8 bytes.
3510  *
3511  */
3512 uint64_t
3513 ibnex_str2hex(char *c, int len, int *ret)
3514 {
3515 	uint64_t hex = 0, ii;
3516 
3517 	*ret = IBNEX_SUCCESS;
3518 	for (ii = 0; ii < len; ii ++) {
3519 		hex = (ii == 0) ? hex : (hex << 4);
3520 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3521 			hex |= c[ii] - '0';
3522 		else if ((c[ii] >= 'a') && (c[ii] <= 'f'))
3523 			hex |= c[ii] - 'a' + 10;
3524 		else if ((c[ii] >= 'A') && (c[ii] <= 'F'))
3525 			hex |= c[ii] - 'A' + 10;
3526 		else {
3527 			IBTF_DPRINTF_L2("ibnex",
3528 			    "\tstr2hex: Invalid integer string");
3529 			*ret = IBNEX_FAILURE;
3530 			break;
3531 		}
3532 	}
3533 
3534 	return (hex);
3535 }
3536 
3537 
3538 /*
3539  * ibnex_create_port_compatible_prop()
3540  *	Creates 'Compatibility' property for port / HCA_SVC device nodes
3541  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3542  */
3543 static int
3544 ibnex_create_port_compatible_prop(dev_info_t *child_dip,
3545     char *comm_svcp, ibdm_port_attr_t *port_attr)
3546 {
3547 	int 	rval, i;
3548 	char	*temp;
3549 	char	*compatible[IBNEX_MAX_IBPORT_COMPAT_NAMES];
3550 
3551 	IBTF_DPRINTF_L4("ibnex", "\tcreate_port_compatible_prop: Begin");
3552 	/*
3553 	 * Initialize the "compatible" property string as below:
3554 	 * Compatible Strings :
3555 	 * 1. ib.V<vid>P<pid>v<revision>.<service name>.
3556 	 * 2. ib.V<vid>P<pid>.<service name>.
3557 	 * 3. ib.<service name>
3558 	 * Leading zeros must be present
3559 	 */
3560 	temp = kmem_alloc(IBNEX_MAX_IBPORT_COMPAT_PROP_SZ, KM_SLEEP);
3561 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++) {
3562 		compatible[i] = temp + (i * IBNEX_MAX_COMPAT_LEN);
3563 	}
3564 
3565 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
3566 	    "ib.V%06xP%08xv%04x.%s",
3567 	    port_attr->pa_vendorid, port_attr->pa_productid,
3568 	    port_attr->pa_dev_version, comm_svcp);
3569 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
3570 	    "ib.V%06xP%08x.%s",
3571 	    port_attr->pa_vendorid, port_attr->pa_productid,
3572 	    comm_svcp);
3573 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
3574 	    "ib.%s", comm_svcp);
3575 
3576 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++)
3577 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[i]);
3578 
3579 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, child_dip,
3580 	    "compatible", (char **)compatible, IBNEX_MAX_IBPORT_COMPAT_NAMES);
3581 
3582 	if (rval != DDI_PROP_SUCCESS) {
3583 		kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3584 		return (IBNEX_FAILURE);
3585 	}
3586 	kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3587 	return (IBNEX_SUCCESS);
3588 }
3589 
3590 
3591 /*
3592  * ibnex_delete_port_node_data()
3593  *	Delete the parent private node data from the linked list
3594  *	Deallocate the memory of the port/ioc attributes
3595  *	Deallocate the memory of the node data
3596  */
3597 static void
3598 ibnex_delete_port_node_data(ibnex_node_data_t *node)
3599 {
3600 	if ((node->node_next == NULL) && (node->node_prev == NULL))
3601 		ibnex.ibnex_port_node_head = NULL;
3602 	else if (node->node_next == NULL)
3603 		node->node_prev->node_next = NULL;
3604 	else if (node->node_prev == NULL) {
3605 		node->node_next->node_prev = NULL;
3606 		ibnex.ibnex_port_node_head = node->node_next;
3607 	} else {
3608 		node->node_prev->node_next = node->node_next;
3609 		node->node_next->node_prev = node->node_prev;
3610 	}
3611 	kmem_free(node, sizeof (ibnex_node_data_t));
3612 }
3613 
3614 
3615 /*
3616  * ibnex_is_node_data_present()
3617  *	Checks whether ibnex_node_t is created already
3618  *	Returns ibnex_node_data_t if found, otherwise NULL
3619  */
3620 static ibnex_node_data_t *
3621 ibnex_is_node_data_present(ibnex_node_type_t node_type, void *attr,
3622     int index, ib_pkey_t pkey)
3623 {
3624 	ibnex_node_data_t	*nodep;
3625 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3626 	if (node_type == IBNEX_IOC_NODE) {
3627 		ibdm_ioc_info_t *ioc_infop = (ibdm_ioc_info_t *)attr;
3628 
3629 		for (nodep = ibnex.ibnex_ioc_node_head; nodep != NULL;
3630 		    nodep = nodep->node_next) {
3631 			if (nodep->node_data.ioc_node.ioc_guid ==
3632 			    ioc_infop->ioc_profile.ioc_guid) {
3633 				return (nodep);
3634 			}
3635 		}
3636 
3637 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3638 		for (nodep = ibnex.ibnex_pseudo_node_head; nodep;
3639 		    nodep = nodep->node_next)
3640 			if (strcmp(nodep->node_data.pseudo_node.
3641 			    pseudo_node_addr, (char *)attr) == 0)
3642 				return (nodep);
3643 
3644 	} else {
3645 		ibdm_port_attr_t *pattrp = (ibdm_port_attr_t *)attr;
3646 
3647 		for (nodep = ibnex.ibnex_port_node_head; nodep != NULL;
3648 		    nodep = nodep->node_next) {
3649 			if ((nodep->node_data.port_node.port_guid ==
3650 			    pattrp->pa_port_guid) &&
3651 			    (nodep->node_data.port_node.port_commsvc_idx ==
3652 			    index) &&
3653 			    (nodep->node_data.port_node.port_pkey == pkey)) {
3654 				return (nodep);
3655 			}
3656 		}
3657 	}
3658 	return (NULL);
3659 }
3660 
3661 /*
3662  * ibnex_lookup_unit_address_prop:
3663  *
3664  *	If property with name is found, return its value
3665  *	otherwise return NULL.
3666  */
3667 static char *
3668 ibnex_lookup_named_prop(ddi_prop_t *head, char *name)
3669 {
3670 	ddi_prop_t	*propp;
3671 
3672 	/* Search the list of properties for name */
3673 	for (propp = head; propp != NULL; propp = propp->prop_next)  {
3674 		if (strcmp(propp->prop_name, name) != 0)
3675 			continue;
3676 		/* named property should be valid and have a value */
3677 		if (propp->prop_len <= 1)
3678 			break;
3679 		return ((char *)propp->prop_val);
3680 	}
3681 
3682 	return ((char *)0);
3683 }
3684 
3685 
3686 /*
3687  * ibnex_pseudo_initnodes()
3688  *	This routine is specific to pseudo node information handling
3689  *	Creates a ibnex_node_data_t all pseudo nodes children of ibnex
3690  */
3691 void
3692 ibnex_pseudo_initnodes()
3693 {
3694 	int			pnam_len, len;
3695 	ibnex_node_data_t	*nodep;
3696 	struct hwc_spec		*list, *spec;
3697 	char			*node_addr, *temp, *unit_addr;
3698 	char			*node_type;
3699 
3700 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_initnodes");
3701 
3702 	mutex_enter(&ibnex.ibnex_mutex);
3703 	/*
3704 	 * get a list of all "pseudo" children of "ib".
3705 	 * for these children initialize/allocate an internal
3706 	 * ibnex_node_data_t.
3707 	 */
3708 	list = hwc_get_child_spec(ibnex.ibnex_dip, (major_t)-1);
3709 	for (spec = list; spec != NULL; spec = spec->hwc_next) {
3710 		if (spec->hwc_devi_sys_prop_ptr == NULL)
3711 			continue;
3712 
3713 		/* Check "ib-node-type" property for IOC .conf */
3714 		node_type = ibnex_lookup_named_prop(
3715 		    spec->hwc_devi_sys_prop_ptr, "ib-node-type");
3716 
3717 		/* "unit-address" property should be present */
3718 		temp = ibnex_lookup_named_prop(
3719 		    spec->hwc_devi_sys_prop_ptr, "unit-address");
3720 		if (temp == NULL)
3721 			continue;
3722 
3723 		pnam_len = strlen(spec->hwc_devi_name) + strlen(temp) + 2;
3724 
3725 		node_addr = kmem_zalloc(pnam_len, KM_SLEEP);
3726 
3727 		(void) snprintf(node_addr,
3728 		    pnam_len, "%s,%s", spec->hwc_devi_name, temp);
3729 
3730 		nodep = ibnex_is_node_data_present(
3731 		    IBNEX_PSEUDO_NODE, (void *)node_addr, 0, 0);
3732 
3733 		if (nodep) {
3734 			kmem_free(node_addr, pnam_len);
3735 			continue;
3736 		}
3737 
3738 		nodep = ibnex_init_child_nodedata(IBNEX_PSEUDO_NODE,
3739 		    (void *)spec->hwc_devi_name, 0, 0);
3740 
3741 		nodep->node_data.pseudo_node.pseudo_node_addr = node_addr;
3742 		(void) snprintf(nodep->node_data.
3743 		    pseudo_node.pseudo_node_addr, pnam_len, "%s", node_addr);
3744 
3745 		len = strlen(temp) + 1;
3746 		unit_addr = (char *)kmem_alloc(len, KM_SLEEP);
3747 		nodep->node_data.pseudo_node.pseudo_unit_addr = unit_addr;
3748 		(void) snprintf(unit_addr, len, "%s", temp);
3749 		nodep->node_data.pseudo_node.pseudo_unit_addr_len = len;
3750 
3751 		if (node_type && strcmp(node_type, "merge") == 0)
3752 			nodep->node_data.pseudo_node.pseudo_merge_node = 1;
3753 
3754 		IBTF_DPRINTF_L3("ibnex", "\tpseudo_initnodes: unit addr = %s"
3755 		    " : drv name = %s", unit_addr, spec->hwc_devi_name);
3756 	}
3757 	hwc_free_spec_list(list);
3758 	mutex_exit(&ibnex.ibnex_mutex);
3759 }
3760 
3761 
3762 /*
3763  * ibnex_init_child_nodedata()
3764  *
3765  *	Allocate memory for the parent private data for device node
3766  *	Initializes the parent private child device node data.
3767  *	Returns pointer to the parent private data
3768  */
3769 static ibnex_node_data_t *
3770 ibnex_init_child_nodedata(ibnex_node_type_t node_type, void *attr, int index,
3771     ib_pkey_t pkey)
3772 {
3773 	char			 *devi_name;
3774 	ibdm_ioc_info_t		 *ioc_info;
3775 	ibnex_ioc_node_t	 *ioc_node;
3776 	ibnex_node_data_t	 *node_data;
3777 	ib_dm_ioc_ctrl_profile_t *ioc_profile;
3778 
3779 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3780 
3781 	node_data = kmem_zalloc(sizeof (ibnex_node_data_t), KM_SLEEP);
3782 	node_data->node_ap_state = IBNEX_NODE_AP_CONFIGURED;
3783 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3784 	node_data->node_type	= node_type;
3785 
3786 	if (node_type == IBNEX_IOC_NODE) {
3787 		ioc_info	= (ibdm_ioc_info_t *)attr;
3788 		ioc_profile	= &ioc_info->ioc_profile;
3789 		ioc_node	= &node_data->node_data.ioc_node;
3790 
3791 		ioc_node->iou_guid = ioc_info->ioc_iou_guid;
3792 		ioc_node->ioc_guid = ioc_profile->ioc_guid;
3793 		(void) strncpy(ioc_node->ioc_id_string,
3794 		    (char *)ioc_profile->ioc_id_string,
3795 		    IB_DM_IOC_ID_STRING_LEN);
3796 		ioc_node->ioc_ngids = ioc_info->ioc_nportgids;
3797 
3798 		node_data->node_next = ibnex.ibnex_ioc_node_head;
3799 		node_data->node_prev = NULL;
3800 		if (ibnex.ibnex_ioc_node_head)
3801 			ibnex.ibnex_ioc_node_head->node_prev = node_data;
3802 		ibnex.ibnex_ioc_node_head = node_data;
3803 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3804 		devi_name = (char *)attr;
3805 		node_data->node_data.pseudo_node.pseudo_devi_name =
3806 		    kmem_zalloc(strlen(devi_name) + 1, KM_SLEEP);
3807 		(void) strncpy(node_data->node_data.pseudo_node.
3808 		    pseudo_devi_name, devi_name, strlen(devi_name));
3809 		node_data->node_next = ibnex.ibnex_pseudo_node_head;
3810 		node_data->node_prev = NULL;
3811 		if (ibnex.ibnex_pseudo_node_head)
3812 			ibnex.ibnex_pseudo_node_head->node_prev = node_data;
3813 		ibnex.ibnex_pseudo_node_head = node_data;
3814 	} else {
3815 		node_data->node_data.port_node.port_hcaguid =
3816 		    ((ibdm_port_attr_t *)attr)->pa_hca_guid;
3817 		node_data->node_data.port_node.port_guid =
3818 		    ((ibdm_port_attr_t *)attr)->pa_port_guid;
3819 		node_data->node_data.port_node.port_num =
3820 		    ((ibdm_port_attr_t *)attr)->pa_port_num;
3821 		node_data->node_data.port_node.port_commsvc_idx = index;
3822 		node_data->node_data.port_node.port_pkey = pkey;
3823 
3824 		node_data->node_next = ibnex.ibnex_port_node_head;
3825 		node_data->node_prev = NULL;
3826 		if (ibnex.ibnex_port_node_head)
3827 			ibnex.ibnex_port_node_head->node_prev = node_data;
3828 		ibnex.ibnex_port_node_head = node_data;
3829 	}
3830 	return (node_data);
3831 }
3832 
3833 static int
3834 ibnex_get_eventcookie(dev_info_t *dip, dev_info_t *rdip,
3835     char *eventname, ddi_eventcookie_t *cookie)
3836 {
3837 	int rc;
3838 
3839 
3840 	IBTF_DPRINTF_L4("ibnex", "ibnex_get_eventcookie(%p, %p, %s, 0x%X)",
3841 	    dip, rdip, eventname, cookie);
3842 
3843 	rc = ndi_event_retrieve_cookie(ibnex.ibnex_ndi_event_hdl,
3844 	    rdip, eventname, cookie, NDI_EVENT_NOPASS);
3845 	if (rc == NDI_SUCCESS) {
3846 		mutex_enter(&ibnex.ibnex_mutex);
3847 		ibnex.ibnex_prop_update_evt_cookie = *cookie;
3848 		mutex_exit(&ibnex.ibnex_mutex);
3849 	}
3850 
3851 	return (rc);
3852 }
3853 
3854 static int
3855 ibnex_add_eventcall(dev_info_t *dip, dev_info_t *rdip,
3856     ddi_eventcookie_t cookie, void (*callback)(dev_info_t *dip,
3857     ddi_eventcookie_t cookie, void *arg, void *bus_impldata),
3858     void *arg, ddi_callback_id_t *cb_id)
3859 {
3860 	IBTF_DPRINTF_L4("ibnex",
3861 	    "ibnex_add_eventcall(%p, %p, 0x%X, %p, %p, %p)",
3862 	    dip, rdip, cookie, callback, arg, cb_id);
3863 
3864 	return (ndi_event_add_callback(ibnex.ibnex_ndi_event_hdl,
3865 	    rdip, cookie, callback, arg, NDI_SLEEP, cb_id));
3866 }
3867 
3868 static int
3869 ibnex_remove_eventcall(dev_info_t *dip, ddi_callback_id_t cb_id)
3870 {
3871 	IBTF_DPRINTF_L4("ibnex", "ibnex_remove_eventcall(%p, 0x%X)",
3872 	    dip, cb_id);
3873 
3874 	return (ndi_event_remove_callback(ibnex.ibnex_ndi_event_hdl,
3875 	    cb_id));
3876 }
3877 
3878 static int
3879 ibnex_post_event(dev_info_t *dip, dev_info_t *rdip,
3880     ddi_eventcookie_t cookie, void *bus_impldata)
3881 {
3882 	IBTF_DPRINTF_L4("ibnex", "ibnex_post_event(%p, %p, 0x%X, %p)",
3883 	    dip, rdip, cookie, bus_impldata);
3884 
3885 	return (ndi_event_run_callbacks(ibnex.ibnex_ndi_event_hdl, rdip,
3886 	    cookie, bus_impldata));
3887 }
3888 
3889 /*
3890  * ibnex_reprobe_ioc_dev()
3891  *
3892  * This could be called as a result of ibt_reprobe_dev request or
3893  * cfgadm command. The function is called from a taskq in case of
3894  * ibt_reprobe_dev and from user context for cfgadm command.
3895  *
3896  * This function reprobes the properties for one IOC dip.
3897  *
3898  * node_reprobe_state should be set before calling this function.
3899  */
3900 void
3901 ibnex_reprobe_ioc_dev(void *arg)
3902 {
3903 	dev_info_t	*dip = (dev_info_t *)arg;
3904 	ibnex_node_data_t	*node_data;
3905 	ibnex_ioc_node_t	*ioc_data;
3906 	ibdm_ioc_info_t		*ioc_info;
3907 
3908 	/* ASSERT(NO_LOCKS_HELD); */
3909 	ASSERT(dip != NULL);
3910 
3911 	node_data = ddi_get_parent_data(dip);
3912 	ASSERT(node_data);
3913 
3914 	if (node_data->node_dip == NULL) {
3915 		IBTF_DPRINTF_L4("ibnex", "reprobe for unconfigured dip");
3916 		mutex_enter(&ibnex.ibnex_mutex);
3917 		ibnex_wakeup_reprobe_ioc(node_data, 0);
3918 		mutex_exit(&ibnex.ibnex_mutex);
3919 		return;
3920 	}
3921 	ioc_data = &(node_data->node_data.ioc_node);
3922 
3923 	/* Reprobe the IOC */
3924 	ioc_info = ibdm_ibnex_probe_ioc(ioc_data->iou_guid, ioc_data->ioc_guid,
3925 	    1);
3926 	if (ioc_info == NULL) {
3927 		IBTF_DPRINTF_L2("ibnex", "Null ioc_info from reprobe");
3928 		mutex_enter(&ibnex.ibnex_mutex);
3929 		ibnex_wakeup_reprobe_ioc(node_data, 1);
3930 		mutex_exit(&ibnex.ibnex_mutex);
3931 		return;
3932 	}
3933 
3934 	mutex_enter(&ibnex.ibnex_mutex);
3935 	if (node_data->node_dip)
3936 		ibnex_update_prop(node_data, ioc_info);
3937 	ibnex_wakeup_reprobe_ioc(node_data, 0);
3938 	mutex_exit(&ibnex.ibnex_mutex);
3939 
3940 	ibdm_ibnex_free_ioc_list(ioc_info);
3941 }
3942 
3943 /*
3944  * ibnex_reprobe_all()
3945  *
3946  * This could be called as a result of cfgadm command. The function
3947  * is called from user context.
3948  *
3949  * This function reprobes the properties for all IOC dips.
3950  *
3951  * ibnex_reprobe_state should be set before calling this function.
3952  */
3953 void
3954 ibnex_reprobe_ioc_all()
3955 {
3956 	ibnex_node_data_t	*node_data;
3957 	ibdm_ioc_info_t		*ioc_info_list, *ioc;
3958 
3959 	/* ASSERT(NO_LOCKS_HELD); */
3960 
3961 	/* Sweep the fabric */
3962 	ioc = ioc_info_list = ibdm_ibnex_get_ioc_list(
3963 	    IBDM_IBNEX_REPROBE_ALL);
3964 	if (ioc_info_list == NULL) {
3965 		mutex_enter(&ibnex.ibnex_mutex);
3966 		ibnex_wakeup_reprobe_all();
3967 		mutex_exit(&ibnex.ibnex_mutex);
3968 		return;
3969 	}
3970 
3971 	mutex_enter(&ibnex.ibnex_mutex);
3972 	while (ioc_info_list) {
3973 		if ((node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
3974 		    ioc_info_list, 0, 0)) != NULL &&
3975 		    node_data->node_dip != NULL) {
3976 			ibnex_update_prop(node_data, ioc_info_list);
3977 		}
3978 		ioc_info_list = ioc_info_list->ioc_next;
3979 	}
3980 	ibnex_wakeup_reprobe_all();
3981 	mutex_exit(&ibnex.ibnex_mutex);
3982 
3983 	ibdm_ibnex_free_ioc_list(ioc);
3984 }
3985 
3986 /*
3987  * Update the properties, if it has modified and notify IBTF client.
3988  */
3989 static void
3990 ibnex_update_prop(ibnex_node_data_t *node_data, ibdm_ioc_info_t *ioc_info)
3991 {
3992 	ibt_prop_update_payload_t	evt_data;
3993 	dev_info_t	*dip = node_data->node_dip;
3994 	ddi_eventcookie_t	evt_cookie;
3995 	ibnex_ioc_node_t *ioc;
3996 
3997 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3998 
3999 	ASSERT(dip != NULL);
4000 
4001 	ioc = &node_data->node_data.ioc_node;
4002 
4003 	evt_data = ioc_info->ioc_info_updated;
4004 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
4005 
4006 	/*
4007 	 * For a disconnected IOC :
4008 	 *	Store the ioc_profile for supplying cfgadm info
4009 	 *	ibdm maintains no info of disconnected IOC
4010 	 *
4011 	 * For reconnected IOC :
4012 	 *	ibdm has info of previous service entries
4013 	 *	ioc_profile maintained by ibnexus is used to
4014 	 *	update ib_srv_prop_updated.
4015 	 *	Free the ibnex maintained ioc_profile
4016 	 */
4017 	if (ioc_info->ioc_nportgids == 0) {
4018 		IBTF_DPRINTF_L4("ibnex",
4019 		    "\tupdate_prop:  IOC disconnected");
4020 		ioc->ioc_profile = (ib_dm_ioc_ctrl_profile_t *)kmem_zalloc(
4021 		    sizeof (ib_dm_ioc_ctrl_profile_t), KM_SLEEP);
4022 		bcopy(&ioc_info->ioc_profile, ioc->ioc_profile,
4023 		    sizeof (ib_dm_ioc_ctrl_profile_t));
4024 
4025 		ibnex.ibnex_num_disconnect_iocs++;
4026 	} else if (ioc_info->ioc_nportgids != 0 && ioc->ioc_ngids == 0 &&
4027 	    ioc->ioc_profile != NULL) {
4028 		IBTF_DPRINTF_L4("ibnex",
4029 		    "\tupdate_prop: IOC reconnected");
4030 		if (ioc->ioc_profile->ioc_service_entries !=
4031 		    ioc_info->ioc_profile.ioc_service_entries)
4032 			evt_data.ib_srv_prop_updated = 1;
4033 
4034 		ibnex.ibnex_num_disconnect_iocs--;
4035 		kmem_free(ioc->ioc_profile, sizeof (ib_dm_ioc_ctrl_profile_t));
4036 		ioc->ioc_profile = NULL;
4037 	}
4038 
4039 	/* Update the properties that have changed */
4040 	mutex_exit(&ibnex.ibnex_mutex);
4041 	if (evt_data.ib_gid_prop_updated) {
4042 		if (ibnex_create_ioc_portgid_prop(dip, ioc_info) !=
4043 		    IBNEX_SUCCESS) {
4044 			mutex_enter(&ibnex.ibnex_mutex);
4045 			return;
4046 		}
4047 	}
4048 	if (evt_data.ib_srv_prop_updated) {
4049 		if (ioc_info->ioc_profile.ioc_service_entries != 0 &&
4050 		    (ibnex_create_ioc_srv_props(dip, ioc_info) !=
4051 		    IBNEX_SUCCESS)) {
4052 			mutex_enter(&ibnex.ibnex_mutex);
4053 			return;
4054 		} else if (ioc_info->ioc_profile.ioc_service_entries == 0) {
4055 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
4056 			    "service-id");
4057 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
4058 			    "service-name");
4059 		}
4060 	}
4061 	mutex_enter(&ibnex.ibnex_mutex);
4062 	ioc->ioc_ngids = ioc_info->ioc_nportgids;
4063 
4064 	/*
4065 	 * Post an event if :
4066 	 *	1. Properites have changed or NOTIFY_ALWAYS is set.
4067 	 *	2. child dip is configured and a valid cookie for
4068 	 *	   IB_PROP_UPDATE_EVENT.
4069 	 */
4070 	if ((evt_data.ib_prop_updated != 0 ||
4071 	    (node_data->node_reprobe_state &
4072 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)) &&
4073 	    ((node_data->node_state == IBNEX_CFGADM_CONFIGURED) &&
4074 	    (evt_cookie != NULL))) {
4075 			mutex_exit(&ibnex.ibnex_mutex);
4076 
4077 			if (ndi_post_event(ibnex.ibnex_dip, dip,
4078 			    evt_cookie, &evt_data) != NDI_SUCCESS)
4079 				IBTF_DPRINTF_L2("ibnex",
4080 				    "\tndi_post_event failed\n");
4081 
4082 			mutex_enter(&ibnex.ibnex_mutex);
4083 	}
4084 
4085 	/*
4086 	 * Cleanup node_reprobe_state, for ibt_reprobe_dev
4087 	 * requests, when reprobe all / node reprobe is in
4088 	 * progress. ibnex_reprobe_ioc_dev is not called
4089 	 * in this case.
4090 	 */
4091 	if (node_data->node_reprobe_state ==
4092 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)
4093 		ibnex_wakeup_reprobe_ioc(node_data, 0);
4094 }
4095 
4096 static ibnex_rval_t
4097 ibnex_unique_svcname(char *svcname)
4098 {
4099 	int i;
4100 
4101 	/* Check Port Services */
4102 	for (i = 0; i < ibnex.ibnex_num_comm_svcs; i++)
4103 		if (ibnex.ibnex_comm_svc_names[i] && strncmp(svcname,
4104 		    ibnex.ibnex_comm_svc_names[i], 4) == 0)
4105 			return (IBNEX_FAILURE);
4106 
4107 	/* Check VPPA Services */
4108 	for (i = 0; i < ibnex.ibnex_nvppa_comm_svcs; i++)
4109 		if (ibnex.ibnex_vppa_comm_svc_names[i] && strncmp(svcname,
4110 		    ibnex.ibnex_vppa_comm_svc_names[i], 4) == 0)
4111 			return (IBNEX_FAILURE);
4112 
4113 	/* Check HCA_SVC Services */
4114 	for (i = 0; i < ibnex.ibnex_nhcasvc_comm_svcs; i++)
4115 		if (ibnex.ibnex_hcasvc_comm_svc_names[i] && strncmp(svcname,
4116 		    ibnex.ibnex_hcasvc_comm_svc_names[i], 4) == 0)
4117 			return (IBNEX_FAILURE);
4118 
4119 	return (IBNEX_SUCCESS);
4120 }
4121 
4122 static void
4123 ibnex_handle_reprobe_dev(void *arg)
4124 {
4125 	dev_info_t	*dip = (dev_info_t *)arg;
4126 	ibnex_node_data_t	*node_data;
4127 
4128 	ASSERT(dip != NULL);
4129 	node_data = ddi_get_parent_data(dip);
4130 	ASSERT(node_data);
4131 
4132 	/*
4133 	 * Return success if:
4134 	 *	1. Reprobe for all nodes are in progress
4135 	 *	2. Reprobe for this node is in progress.
4136 	 * The reprobe in progress will complete eventually and
4137 	 * update the properties, if required.
4138 	 */
4139 	mutex_enter(&ibnex.ibnex_mutex);
4140 	if (ibnex.ibnex_reprobe_state != 0 ||
4141 	    node_data->node_reprobe_state != 0) {
4142 		/*
4143 		 * Setting NOTIFY_ALWAYS to ensure that
4144 		 * DDI event is delivered always for
4145 		 * ibt_reprobe_dev
4146 		 */
4147 		node_data->node_reprobe_state |=
4148 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
4149 		mutex_exit(&ibnex.ibnex_mutex);
4150 		return;
4151 	}
4152 	node_data->node_reprobe_state =
4153 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
4154 	mutex_exit(&ibnex.ibnex_mutex);
4155 	ibnex_reprobe_ioc_dev(arg);
4156 }
4157 
4158 
4159 /*
4160  * MPxIO pathmangement routines. Currently IB nexus does not support
4161  * any kind of pathmangement. So, just return success to make MPxIO
4162  * framework happy.
4163  */
4164 /*ARGSUSED*/
4165 static int
4166 ib_vhci_pi_init(dev_info_t *vdip, mdi_pathinfo_t *pip, int flag)
4167 {
4168 	IBTF_DPRINTF_L4("ibnex", "\tpi_init: dip %p pip %p", vdip, pip);
4169 	return (MDI_SUCCESS);
4170 }
4171 
4172 
4173 /*ARGSUSED*/
4174 static int
4175 ib_vhci_pi_uninit(dev_info_t *vdip, mdi_pathinfo_t *pip, int flag)
4176 {
4177 	dev_info_t *cdip;
4178 	ibnex_node_data_t *node_data;
4179 	int clnt_num_pi;
4180 	IBTF_DPRINTF_L4("ibnex", "\tpi_uninit: dip %p pip %p", vdip, pip);
4181 
4182 	if (pip == NULL)
4183 		return (MDI_FAILURE);
4184 	/*
4185 	 * Get the Client dev_info from the pathinfo.
4186 	 */
4187 	cdip = mdi_pi_get_client(pip);
4188 	if (cdip == NULL)
4189 		return (MDI_FAILURE);
4190 
4191 	/*
4192 	 * How many PIs do we have from this cdip ?
4193 	 */
4194 	clnt_num_pi = mdi_client_get_path_count(cdip);
4195 
4196 	/*
4197 	 * If this is the last PI that is being free'd ( called from
4198 	 * mdi_pi_free) we have to clean up the node data for the cdip since
4199 	 * the client would have been detached by mdi_devi_offline.
4200 	 */
4201 	if (clnt_num_pi == 1) {
4202 		for (node_data = ibnex.ibnex_ioc_node_head;
4203 		    node_data; node_data = node_data->node_next) {
4204 			if (node_data->node_dip == cdip) {
4205 				node_data->node_dip = NULL;
4206 				node_data->node_state =
4207 				    IBNEX_CFGADM_UNCONFIGURED;
4208 				return (MDI_SUCCESS);
4209 			}
4210 		}
4211 		for (node_data = ibnex.ibnex_pseudo_node_head;
4212 		    node_data; node_data = node_data->node_next) {
4213 			if (node_data->node_dip == cdip) {
4214 				node_data->node_dip = NULL;
4215 				node_data->node_state =
4216 				    IBNEX_CFGADM_UNCONFIGURED;
4217 				return (MDI_SUCCESS);
4218 			}
4219 		}
4220 	}
4221 	return (MDI_SUCCESS);
4222 }
4223 
4224 
4225 /*ARGSUSED*/
4226 static int
4227 ib_vhci_pi_state_change(dev_info_t *vdip, mdi_pathinfo_t *pip,
4228 		mdi_pathinfo_state_t state, uint32_t arg1, int arg2)
4229 {
4230 	IBTF_DPRINTF_L4("ibnex",
4231 	    "\tpi_state_change: dip %p pip %p state %x", vdip, pip, state);
4232 	return (MDI_SUCCESS);
4233 }
4234 
4235 
4236 /*ARGSUSED*/
4237 static int
4238 ib_vhci_failover(dev_info_t *dip1, dev_info_t *dip2, int arg)
4239 {
4240 	return (MDI_SUCCESS);
4241 }
4242 
4243 
4244 static int
4245 ibnex_bus_power(dev_info_t *parent, void *impl_arg,
4246     pm_bus_power_op_t op, void *arg, void *result)
4247 {
4248 
4249 	int ret = DDI_SUCCESS;
4250 
4251 	IBTF_DPRINTF_L4("ibnex", "\tbus_power: begin: op = %d", op);
4252 
4253 	/*
4254 	 * Generic processing in MPxIO framework
4255 	 */
4256 	ret = mdi_bus_power(parent, impl_arg, op, arg, result);
4257 
4258 	switch (ret) {
4259 	case MDI_SUCCESS:
4260 		ret = DDI_SUCCESS;
4261 		break;
4262 	case MDI_FAILURE:
4263 		ret = DDI_FAILURE;
4264 		break;
4265 	default:
4266 		break;
4267 	}
4268 
4269 	return (ret);
4270 }
4271 
4272 
4273 /*
4274  * If enumerated as a child of IB Nexus / VHCI, call mdi_vhci_bus_config.
4275  * ndi_devi_enter is not held during this call. mdi_vhci_bus_config()
4276  * will have called ndi_busop_bus_config(), no need for the caller to call
4277  * ndi_busop_bus_config() again.
4278  *
4279  * If enumerated as a child of HCA device, this could be a case for
4280  * Sparc boot or device enumeration from PHCI, driven by MDI.
4281  * Hold parent lock (ndi_devi_enter). The caller will have to call
4282  * ndi_busop_bus_config() if this function returns SUCCESS.
4283  *
4284  * if the device name contains ":port", then it is the Sparc boot case.
4285  * Handle this as before.
4286  *
4287  * If the device name does *not* contain the ":port", then :
4288  *	1. ibdm to probe IOC
4289  *	2. Create a pathinfo only if the IOC is reachable from the parent dip.
4290  */
4291 static int
4292 ibnex_ioc_bus_config_one(dev_info_t **pdipp, uint_t flag,
4293     ddi_bus_config_op_t op, void *devname, dev_info_t **child,
4294     int *need_bus_config)
4295 {
4296 	int ret = DDI_FAILURE, circ;
4297 	dev_info_t *pdip = *pdipp;
4298 	ib_guid_t	iou_guid, ioc_guid;
4299 	char *ioc_guid_str;
4300 
4301 
4302 	*need_bus_config = 1;
4303 
4304 	if (pdip == ibnex.ibnex_dip) {
4305 		if (ibnex_devname_to_node_n_ioc_guids(
4306 		    (char *)devname, &iou_guid, &ioc_guid,
4307 		    &ioc_guid_str) != IBNEX_SUCCESS) {
4308 			return (ret);
4309 		}
4310 		ret = mdi_vhci_bus_config(pdip, flag, op, devname, child,
4311 		    ioc_guid_str);
4312 		kmem_free(ioc_guid_str, strlen(ioc_guid_str) + 1);
4313 		if (ret == MDI_SUCCESS)
4314 			*need_bus_config = 0;
4315 	} else {
4316 		mdi_devi_enter(pdip, &circ);
4317 		if (strstr((char *)devname, ":port=") != NULL) {
4318 			ret = ibnex_config_root_iocnode(pdip, devname);
4319 			ASSERT(ibnex.ibnex_dip == NULL);
4320 			*pdipp = ibnex.ibnex_dip;
4321 		} else {
4322 			ret = ibnex_config_ioc_node(devname, pdip);
4323 		}
4324 		mdi_devi_exit(pdip, circ);
4325 	}
4326 	return (ret);
4327 }
4328 
4329 static int
4330 ibnex_is_merge_node(dev_info_t *child)
4331 {
4332 	char	*node;
4333 	int	ret = IBNEX_INVALID_NODE;
4334 
4335 	if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child,
4336 	    DDI_PROP_DONTPASS, "ib-node-type", &node) !=
4337 	    DDI_PROP_SUCCESS) {
4338 		return (IBNEX_FAILURE);
4339 	}
4340 
4341 	if (node != NULL && *node != 0) {
4342 		if (strcmp(node, "merge") == 0)
4343 			ret = IBNEX_SUCCESS;
4344 		else {
4345 			IBTF_DPRINTF_L4("ibnex",
4346 			    "\tis_merge_node: ib-node-type = %s", node);
4347 		}
4348 	}
4349 
4350 	ddi_prop_free(node);
4351 	return (ret);
4352 }
4353 
4354 /*
4355  * Checks if the dn_head for the driver has already
4356  * initialized by the prom tree.
4357  */
4358 void
4359 ibnex_hw_in_dev_tree(char *driver_name)
4360 {
4361 	major_t	major;
4362 
4363 	IBTF_DPRINTF_L4("ibnex", "\thw_in_dev_tree(%s)", driver_name);
4364 
4365 	if (devnamesp == NULL)
4366 		return;
4367 
4368 	major = ddi_name_to_major(driver_name);
4369 	if (major == -1)
4370 		return;
4371 
4372 	if (devnamesp[major].dn_head != (dev_info_t *)NULL)
4373 		ibnex_hw_status = IBNEX_HW_IN_DEVTREE;
4374 }
4375 
4376 int
4377 ibnex_ioc_initnode_all_pi(ibdm_ioc_info_t *ioc_info)
4378 {
4379 	ibdm_hca_list_t	*hca_list;
4380 	dev_info_t	*hca_dip;
4381 	int	rc = IBNEX_FAILURE;
4382 
4383 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
4384 	/*
4385 	 * We return failure even if we fail for all HCAs
4386 	 */
4387 	for (hca_list = ioc_info->ioc_hca_list; hca_list;
4388 	    hca_list = hca_list->hl_next) {
4389 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
4390 		if (ibnex_ioc_config_from_pdip(ioc_info, hca_dip, 1) ==
4391 		    IBNEX_SUCCESS)
4392 			rc = IBNEX_SUCCESS;
4393 	}
4394 	return (rc);
4395 }
4396 
4397 static int
4398 ibnex_ioc_config_from_pdip(ibdm_ioc_info_t *ioc_info, dev_info_t *pdip,
4399     int pdip_reachable_checked)
4400 {
4401 	ibnex_node_data_t	*node_data;
4402 	int			create_pdip = 0;
4403 	int			rc = IBNEX_SUCCESS;
4404 
4405 
4406 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
4407 	IBTF_DPRINTF_L4("ibnex",
4408 	    "/tioc_config_from_pdip(%p, %p, %d)", ioc_info, pdip,
4409 	    pdip_reachable_checked);
4410 
4411 	if (pdip_reachable_checked == 0) {
4412 		if (ibnex_ioc_pi_reachable(ioc_info, pdip) == IBNEX_FAILURE) {
4413 			IBTF_DPRINTF_L4("ibnex",
4414 			    "/tioc_config_from_pdip: ioc %p not reachable"
4415 			    "from %p", ioc_info, pdip);
4416 			return (IBNEX_FAILURE);
4417 		}
4418 	}
4419 
4420 	node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
4421 	    (void *)ioc_info, 0, 0);
4422 
4423 	if (node_data && node_data->node_ap_state ==
4424 	    IBNEX_NODE_AP_UNCONFIGURED) {
4425 		IBTF_DPRINTF_L4("ibnex",
4426 		    "\tioc_config_from_pdip: Unconfigured node");
4427 		return (IBNEX_FAILURE);
4428 	}
4429 
4430 
4431 	if (node_data == NULL) {
4432 		ibnex_ioc_node_t	*ioc;
4433 
4434 		create_pdip = 1;
4435 
4436 		node_data = ibnex_init_child_nodedata(IBNEX_IOC_NODE,
4437 		    ioc_info, 0, 0);
4438 		ASSERT(node_data);
4439 		ioc = &node_data->node_data.ioc_node;
4440 		(void) snprintf(ioc->ioc_guid_str, IBNEX_IOC_GUID_LEN,
4441 		    "%llX",
4442 		    (longlong_t)ioc_info->ioc_profile.ioc_guid);
4443 		(void) snprintf(ioc->ioc_phci_guid, IBNEX_PHCI_GUID_LEN,
4444 		    "%llX,%llX",
4445 		    (longlong_t)ioc_info->ioc_profile.ioc_guid,
4446 		    (longlong_t)ioc_info->ioc_iou_guid);
4447 	} else if (ibnex_ioc_pi_exists(node_data, pdip) == IBNEX_FAILURE) {
4448 		create_pdip = 1;
4449 	}
4450 
4451 	if (create_pdip) {
4452 		rc = ibnex_ioc_initnode_pdip(node_data, ioc_info, pdip);
4453 	}
4454 
4455 	IBTF_DPRINTF_L4("ibnex", "\tioc_config_from_pdip ret %x",
4456 	    rc);
4457 	return (rc);
4458 }
4459 
4460 /*
4461  * This function checks if a pathinfo has already been created
4462  * for the HCA parent. The function returns SUCCESS if a pathinfo
4463  * has already been created, FAILURE if not.
4464  */
4465 static int
4466 ibnex_ioc_pi_exists(ibnex_node_data_t *node_data, dev_info_t *parent)
4467 {
4468 	int	rc;
4469 	ibnex_ioc_node_t	*ioc;
4470 
4471 	ioc = &node_data->node_data.ioc_node;
4472 	if (mdi_pi_find(parent, (char *)ioc->ioc_guid_str,
4473 	    (char *)ioc->ioc_phci_guid) != NULL)
4474 		rc = IBNEX_SUCCESS;
4475 	else
4476 		rc = IBNEX_FAILURE;
4477 
4478 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_created- client_guid %s, "
4479 	    "phci_guid %s, parent %p, rc %x",
4480 	    ioc->ioc_guid_str, ioc->ioc_phci_guid, parent, rc);
4481 	return (rc);
4482 }
4483 
4484 static int
4485 ibnex_ioc_pi_reachable(ibdm_ioc_info_t *ioc_info, dev_info_t *pdip)
4486 {
4487 	ibdm_hca_list_t	*hca_list;
4488 	dev_info_t	*hca_dip;
4489 
4490 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_reachable(%p, %p)",
4491 	    ioc_info, pdip);
4492 	for (hca_list = ioc_info->ioc_hca_list; hca_list;
4493 	    hca_list = hca_list->hl_next) {
4494 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
4495 		if (hca_dip == pdip) {
4496 			IBTF_DPRINTF_L4("ibnex",
4497 			    "\tioc_pi_reachable FAILURE");
4498 			return (IBNEX_SUCCESS);
4499 		}
4500 	}
4501 
4502 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_reachable FAILURE");
4503 	return (IBNEX_FAILURE);
4504 }
4505