xref: /titanic_41/usr/src/uts/common/io/ib/ibnex/ibnex.c (revision c93c462eec9d46f84d567abf52eb29a27c2e134b)
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 	/*
518 	 * Set pm-want-child-notification property for
519 	 * power management of the phci and client
520 	 */
521 	if (ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP,
522 	    "pm-want-child-notification?", NULL, NULL) != DDI_PROP_SUCCESS) {
523 		IBTF_DPRINTF_L2("ibnex",
524 		    "_attach: create pm-want-child-notification failed");
525 		(void) ddi_remove_minor_node(dip, NULL);
526 		(void) mdi_vhci_unregister(dip, 0);
527 		return (DDI_FAILURE);
528 	}
529 
530 	mutex_enter(&ibnex.ibnex_mutex);
531 	ibnex.ibnex_dip  = dip;
532 	mutex_exit(&ibnex.ibnex_mutex);
533 
534 	/*
535 	 * Event Handling: Definition and Binding.
536 	 */
537 	if (ndi_event_alloc_hdl(dip, 0, &ibnex.ibnex_ndi_event_hdl,
538 	    NDI_SLEEP) != NDI_SUCCESS) {
539 		(void) ddi_remove_minor_node(dip, NULL);
540 		IBTF_DPRINTF_L2("ibnex",
541 		    "_attach: ndi_event_alloc_hdl failed");
542 		(void) mdi_vhci_unregister(dip, 0);
543 		return (DDI_FAILURE);
544 	}
545 	if (ndi_event_bind_set(ibnex.ibnex_ndi_event_hdl, &ib_ndi_events,
546 	    NDI_SLEEP) != NDI_SUCCESS) {
547 		(void) ddi_remove_minor_node(dip, NULL);
548 		(void) ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl);
549 		IBTF_DPRINTF_L2("ibnex",
550 		    "_attach: ndi_event_bind_set failed");
551 		(void) mdi_vhci_unregister(dip, 0);
552 		return (DDI_FAILURE);
553 	}
554 
555 	for (i = 0; i < N_IBNEX_PROPS; i++) {
556 		if (ibnex_comm_svc_init(ibnex_properties[i].name,
557 		    ibnex_properties[i].type) != IBNEX_SUCCESS) {
558 			ibnex_comm_svc_fini();
559 			(void) ndi_event_unbind_set(ibnex.ibnex_ndi_event_hdl,
560 			    &ib_ndi_events, NDI_SLEEP);
561 			(void) ddi_remove_minor_node(dip, NULL);
562 			(void) ndi_event_free_hdl(
563 			    ibnex.ibnex_ndi_event_hdl);
564 			ibnex.ibnex_ndi_event_hdl = NULL;
565 			IBTF_DPRINTF_L2("ibnex", "_attach: ibnex_comm_svc_init"
566 			    " failed %s", ibnex_properties[i].name);
567 			(void) mdi_vhci_unregister(dip, 0);
568 			return (DDI_FAILURE);
569 		}
570 	}
571 
572 	/*
573 	 * before anything else comes up:
574 	 * Initialize the internal list of pseudo device nodes by
575 	 * getting all pseudo children of "ib" and processing them.
576 	 */
577 	ibnex_pseudo_initnodes();
578 
579 	return (DDI_SUCCESS);
580 }
581 
582 
583 /*
584  * ibnex_getinfo()
585  * Given the device number, return the devinfo pointer or the
586  * instance number.
587  * Note: always succeed DDI_INFO_DEVT2INSTANCE, even before attach.
588  */
589 
590 /*ARGSUSED*/
591 static int
592 ibnex_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
593 {
594 	int ret = DDI_SUCCESS;
595 
596 	IBTF_DPRINTF_L4("ibnex", "\tgetinfo: Begin");
597 	switch (cmd) {
598 	case DDI_INFO_DEVT2DEVINFO:
599 		if (ibnex.ibnex_dip != NULL)
600 			*result = ibnex.ibnex_dip;
601 		else {
602 			*result = NULL;
603 			ret = DDI_FAILURE;
604 		}
605 		break;
606 
607 	case DDI_INFO_DEVT2INSTANCE:
608 		*result = 0;
609 		break;
610 
611 	default:
612 		ret = DDI_FAILURE;
613 	}
614 	return (ret);
615 }
616 
617 
618 /*
619  * ibnex_detach
620  *	Unregister callback with the IBDM
621  *	Unregister callback with the IBTL
622  *	Uninitialize the communication entries
623  *	Remove all the minor nodes created by this instance
624  */
625 static int
626 ibnex_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
627 {
628 
629 	IBTF_DPRINTF_L4("ibnex", "\tdetach: dip = %p cmd = %x)", dip, cmd);
630 
631 	switch (cmd) {
632 
633 	case DDI_DETACH:
634 		break;
635 	case DDI_SUSPEND:
636 		IBTF_DPRINTF_L4("ibnex", "\t_detach: Suspend");
637 		return (DDI_SUCCESS);
638 	default:
639 		return (DDI_FAILURE);
640 	}
641 
642 	mutex_enter(&ibnex.ibnex_mutex);
643 	if (ibt_hw_is_present()) {
644 		IBTF_DPRINTF_L2("ibnex",
645 		    "\tdetach: IB HW is present ");
646 		mutex_exit(&ibnex.ibnex_mutex);
647 		return (DDI_FAILURE);
648 	}
649 	if (ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl)) {
650 		IBTF_DPRINTF_L2("ibnex",
651 		    "\tdetach: ndi_event_free_hdl() failed");
652 		mutex_exit(&ibnex.ibnex_mutex);
653 		return (DDI_FAILURE);
654 	}
655 	ibnex.ibnex_ndi_event_hdl = NULL;
656 	ibnex.ibnex_prop_update_evt_cookie = NULL;
657 
658 	ibnex_pseudo_node_cleanup();
659 	ibnex_comm_svc_fini();
660 	ibnex_ioc_node_cleanup();
661 
662 	(void) ddi_remove_minor_node(dip, NULL);
663 	ibnex.ibnex_dip = NULL;
664 	mutex_exit(&ibnex.ibnex_mutex);
665 	(void) mdi_vhci_unregister(dip, 0);
666 	return (DDI_SUCCESS);
667 }
668 
669 
670 /*
671  * ibnex_pseudo_node_cleanup()
672  *	This checks if all the "dips" have been deallocated (implying
673  *	that all the children have been unconfigured) first.
674  *	If not, it just returns.
675  *	If yes, then it frees up memory allocated for devi_name,
676  *	node_addr, and property list.
677  */
678 static void
679 ibnex_pseudo_node_cleanup(void)
680 {
681 	ibnex_node_data_t	*nodep =  ibnex.ibnex_pseudo_node_head;
682 	ibnex_pseudo_node_t	*pseudo;
683 
684 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup:");
685 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
686 
687 	for (; nodep; nodep = nodep->node_next)
688 		if (nodep->node_dip)
689 			return;
690 
691 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup: freeing up memory");
692 	for (nodep =  ibnex.ibnex_pseudo_node_head; nodep;
693 	    nodep = nodep->node_next) {
694 
695 		pseudo = &nodep->node_data.pseudo_node;
696 		if (pseudo->pseudo_node_addr) {
697 			kmem_free(pseudo->pseudo_node_addr,
698 			    strlen(pseudo-> pseudo_node_addr) + 1);
699 			pseudo->pseudo_node_addr = NULL;
700 		}
701 
702 		if (pseudo->pseudo_devi_name) {
703 			kmem_free(pseudo->pseudo_devi_name,
704 			    strlen(pseudo-> pseudo_devi_name) + 1);
705 			pseudo->pseudo_devi_name = NULL;
706 		}
707 
708 		if (pseudo->pseudo_unit_addr) {
709 			kmem_free(pseudo->pseudo_unit_addr,
710 			    pseudo->pseudo_unit_addr_len);
711 		}
712 	}
713 }
714 
715 
716 /*
717  * This functions wakes up any reprobe requests waiting for completion
718  * of reprobe of this IOC. It also send an NDI event, if  :
719  *
720  *	notify_flag is set. This is set if :
721  *		ibt_reprobe_ioc has returned with SUCCESS
722  *		IBTF client has not been notified for this node.
723  *	node_data->node_dip != NULL
724  *	node_state has IBNEX_NODE_REPROBE_NOTIFY_ALWAYS set
725  *	An NDI event cookie has been registered.
726  */
727 static void
728 ibnex_wakeup_reprobe_ioc(ibnex_node_data_t *node_data, int notify_flag)
729 {
730 	ddi_eventcookie_t	evt_cookie;
731 
732 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
733 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
734 
735 	if ((ibnex.ibnex_reprobe_state == IBNEX_REPROBE_IOC_WAIT) ||
736 	    (node_data->node_reprobe_state != 0)) {
737 		if (notify_flag && (node_data->node_dip != NULL) &&
738 		    (node_data->node_state &
739 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS) &&
740 		    (evt_cookie != NULL)) {
741 			ibt_prop_update_payload_t	evt_data;
742 
743 			mutex_exit(&ibnex.ibnex_mutex);
744 
745 			bzero(&evt_data, sizeof (evt_data));
746 			if (ndi_post_event(ibnex.ibnex_dip,
747 			    node_data->node_dip,
748 			    evt_cookie, &evt_data) != NDI_SUCCESS)
749 				IBTF_DPRINTF_L2("ibnex",
750 				    "\tndi_post_event failed\n");
751 
752 			mutex_enter(&ibnex.ibnex_mutex);
753 		}
754 
755 		node_data->node_reprobe_state = 0;
756 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
757 	}
758 	node_data->node_reprobe_state = 0;
759 }
760 
761 /*
762  * This function wakes up any reprobe request waiting for completion
763  * of reprobe of all IOCs.
764  */
765 static void
766 ibnex_wakeup_reprobe_all()
767 {
768 	ibnex_node_data_t *ioc_node;
769 
770 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
771 
772 	/* Notify if another reprobe_all is pending */
773 	if (ibnex.ibnex_reprobe_state == IBNEX_REPROBE_ALL_WAIT) {
774 		ibnex.ibnex_reprobe_state = 0;
775 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
776 	}
777 	ibnex.ibnex_reprobe_state = 0;
778 
779 	/*
780 	 * The IOC may be hot-removed after the reprobe request.
781 	 * Reset the reprobe states for such IOCs.
782 	 */
783 	for (ioc_node = ibnex.ibnex_ioc_node_head; ioc_node;
784 	    ioc_node = ioc_node->node_next) {
785 		if (ioc_node->node_reprobe_state != 0) {
786 			ibnex_wakeup_reprobe_ioc(ioc_node, 1);
787 		}
788 	}
789 }
790 
791 /*
792  * ibnex_ibnex_callback:
793  *	IBTL_IBNEX_IBC_INIT:
794  *		Called from ibc_init() which is called from
795  *		HCA driver _init entry point
796  *		Initializes the HCA dev_ops structure with default
797  *		IB nexus structure.
798  *	IBTL_IBNEX_IBC_FINI:
799  *		Called from ibc_fini() which is called from
800  *		HCA driver _fini entry point
801  *		Un-Initializes the HCA dev_ops structure with default
802  *		IB nexus strucuture.
803  *	Returns IBT_SUCCESS
804  */
805 ibt_status_t
806 ibnex_ibtl_callback(ibtl_ibnex_cb_args_t *cb_args)
807 {
808 	int			retval = IBT_SUCCESS;
809 	struct dev_ops 		*hca_dev_ops;
810 	dev_info_t		*clnt_dip;
811 	ibnex_node_data_t	*node_data;
812 
813 	IBTF_DPRINTF_L5("ibnex", "\tibtl_callback");
814 
815 	switch (cb_args->cb_flag) {
816 	case IBTL_IBNEX_IBC_INIT:
817 		/*
818 		 * Get the devops structure of the HCA,
819 		 * and put IB nexus default busops vector in its place.
820 		 */
821 		hca_dev_ops = ((struct modldrv *)
822 		    (cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
823 		ASSERT((hca_dev_ops) && (hca_dev_ops->devo_bus_ops == NULL));
824 		hca_dev_ops->devo_bus_ops = &ibnex_ci_busops;
825 		break;
826 
827 	case IBTL_IBNEX_IBC_FINI:
828 		hca_dev_ops = ((struct modldrv *)
829 		    (cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
830 		hca_dev_ops->devo_bus_ops = NULL;
831 		break;
832 
833 	case IBTL_IBNEX_REPROBE_DEV_REQ:
834 		/* IBTL pass down request for ibt_reprobe_dev */
835 		clnt_dip = cb_args->cb_dip;
836 		ASSERT(clnt_dip);
837 
838 		node_data = ddi_get_parent_data(clnt_dip);
839 		ASSERT(node_data);
840 
841 		/* Reprobe for IOC nodes only */
842 		ASSERT(node_data->node_type == IBNEX_IOC_NODE);
843 
844 		/*
845 		 * Start the reprobe. This could sleep as it is not
846 		 * from interrupt context.
847 		 */
848 		if (taskq_dispatch(system_taskq, ibnex_handle_reprobe_dev,
849 		    clnt_dip, TQ_SLEEP) == 0) {
850 			IBTF_DPRINTF_L2("ibnex",
851 			    "ibnex_ibtl_callback: taskq_dispatch failed");
852 			mutex_enter(&ibnex.ibnex_mutex);
853 			ibnex_wakeup_reprobe_ioc(node_data, 0);
854 			mutex_exit(&ibnex.ibnex_mutex);
855 			return (IBT_INSUFF_KERNEL_RESOURCE);
856 		}
857 		return (IBT_SUCCESS);
858 	}
859 
860 	return (retval);
861 }
862 
863 
864 /*
865  * Bus-ops entry points
866  */
867 
868 /*
869  * ibnex_map_fault
870  * 	IOC drivers need not map memory. Return failure to fail any
871  *	such calls.
872  */
873 /*ARGSUSED*/
874 static int
875 ibnex_map_fault(dev_info_t *dip, dev_info_t *rdip, struct hat *hat,
876     struct seg *seg, caddr_t addr, struct devpage *dp, pfn_t pfn,
877     uint_t prot, uint_t lock)
878 {
879 	return (DDI_FAILURE);
880 }
881 
882 
883 /*
884  * ibnex_busctl
885  * 	bus_ctl bus_ops entry point
886  */
887 /*ARGSUSED*/
888 static int
889 ibnex_busctl(dev_info_t *dip, dev_info_t *rdip,
890     ddi_ctl_enum_t ctlop, void *arg, void *result)
891 {
892 	dev_info_t		*child_dip;
893 
894 	IBTF_DPRINTF_L4("ibnex",
895 	    "\tbusctl: dip = %p, rdip = %p, ctlop = %x,", dip, rdip, ctlop);
896 	IBTF_DPRINTF_L4("ibnex", "\tbusctl: targ = %p, result %p", arg, result);
897 
898 	switch (ctlop) {
899 	case DDI_CTLOPS_REPORTDEV:
900 		if (rdip == NULL) {
901 			return (DDI_FAILURE);
902 		}
903 
904 		/* Log the relevant details of dip to sysbuf */
905 		cmn_err(CE_CONT, "?IB device: %s@%s, %s%d\n",
906 		    ddi_node_name(rdip), ddi_get_name_addr(rdip),
907 		    ddi_driver_name(rdip), ddi_get_instance(rdip));
908 
909 		return (DDI_SUCCESS);
910 
911 	case DDI_CTLOPS_INITCHILD:
912 		child_dip = (dev_info_t *)arg;
913 		return (ibnex_init_child(child_dip));
914 
915 	case DDI_CTLOPS_UNINITCHILD:
916 		child_dip = (dev_info_t *)arg;
917 		ddi_set_name_addr(child_dip, NULL);
918 		return (DDI_SUCCESS);
919 
920 	case DDI_CTLOPS_ATTACH:
921 	case DDI_CTLOPS_DETACH:
922 	case DDI_CTLOPS_POWER :
923 		return (DDI_SUCCESS);
924 
925 	case DDI_CTLOPS_SIDDEV:
926 		/*
927 		 * Return DDI_SUCCESS for IOC/PORT/VPPA nodes and
928 		 * DDI_FAILURE for the nodes enumerated by a Pseudo file.
929 		 */
930 		return (ndi_dev_is_persistent_node(rdip) ?
931 		    DDI_SUCCESS : DDI_FAILURE);
932 
933 
934 	case DDI_CTLOPS_IOMIN:
935 		/*
936 		 * Return DDI_SUCCESS, so that consistent buf alloc
937 		 * gets the default DMA IO minimum for the platform
938 		 */
939 		return (DDI_SUCCESS);
940 
941 	/*
942 	 * These ops correspond to functions that "shouldn't" be
943 	 * called by IB Nexus driver.
944 	 */
945 	case DDI_CTLOPS_DMAPMAPC:
946 	case DDI_CTLOPS_REPORTINT:
947 	case DDI_CTLOPS_REGSIZE:
948 	case DDI_CTLOPS_NREGS:
949 	case DDI_CTLOPS_SLAVEONLY:
950 	case DDI_CTLOPS_AFFINITY:
951 	case DDI_CTLOPS_POKE:
952 	case DDI_CTLOPS_PEEK:
953 		IBTF_DPRINTF_L2("ibnex",
954 		    "%s%d: invalid op (%d) from %s inst%d",
955 		    ddi_get_name(dip), ddi_get_instance(dip),
956 		    ctlop, ddi_get_name(rdip), ddi_get_instance(rdip));
957 		return (DDI_FAILURE);
958 
959 	/*
960 	 * Everything else (PTOB/BTOP/BTOPR/DVMAPAGESIZE requests) we
961 	 * pass up
962 	 */
963 	default:
964 		return (ddi_ctlops(dip, rdip, ctlop, arg, result));
965 	}
966 }
967 
968 
969 /*
970  * ibnex_init_child()
971  *
972  * Initialize a child device node. This is called for the DDI_CTLOPS_INITCHILD
973  * entry. Function returns DDI_SUCCESS,  DDI_FAILURE or DDI_NOT_WELL_FORMED.
974  */
975 static int
976 ibnex_init_child(dev_info_t *child)
977 {
978 	int			ret;
979 	char			name[MAXNAMELEN];
980 
981 	IBTF_DPRINTF_L4("ibnex", "\tinit_child: child = %p", child);
982 
983 	/* Handle Pseudo nodes of client children */
984 	if (ndi_dev_is_persistent_node(child) == 0) {
985 		/* Skip nodes without ib-node-type="merge" */
986 		if (ibnex_is_merge_node(child) != IBNEX_SUCCESS)
987 			return (DDI_FAILURE);
988 
989 		if (ibnex_name_pseudo_child(child, name) != DDI_SUCCESS)
990 			return (DDI_FAILURE);
991 
992 		ddi_set_name_addr(child, name);
993 		/*
994 		 * Merge the .conf node
995 		 */
996 		if (ndi_merge_node(child,
997 		    ibnex_name_child) == DDI_SUCCESS) {
998 			ddi_set_name_addr(child, NULL);
999 			return (DDI_FAILURE);
1000 		}
1001 		return (DDI_NOT_WELL_FORMED);
1002 
1003 	}
1004 
1005 	if ((ret = ibnex_name_child(child, name, 0)) != DDI_SUCCESS)
1006 		return (ret);
1007 
1008 	ddi_set_name_addr(child, name);
1009 
1010 	return (DDI_SUCCESS);
1011 }
1012 
1013 
1014 int
1015 ibnex_name_pseudo_child(dev_info_t *child, char *name)
1016 {
1017 	char **unit_addr;
1018 	uint_t n;
1019 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, child,
1020 	    DDI_PROP_DONTPASS, "unit-address", &unit_addr, &n) !=
1021 	    DDI_PROP_SUCCESS) {
1022 		IBTF_DPRINTF_L4("ibnex",
1023 		    "\tname_pseudo_child: cannot find unit-address in %s.conf",
1024 		    ddi_get_name(child));
1025 		return (DDI_FAILURE);
1026 	}
1027 	if (n != 1 || *unit_addr == NULL || **unit_addr == 0) {
1028 		cmn_err(CE_WARN, "unit-address property in %s.conf"
1029 		    " not well-formed", ddi_get_name(child));
1030 		ddi_prop_free(unit_addr);
1031 		return (DDI_FAILURE);
1032 	}
1033 	(void) snprintf(name, MAXNAMELEN, "%s", *unit_addr);
1034 	ddi_prop_free(unit_addr);
1035 	return (DDI_SUCCESS);
1036 }
1037 
1038 
1039 /*ARGSUSED*/
1040 int
1041 ibnex_name_child(dev_info_t *child, char *name, int flag)
1042 {
1043 	ibnex_pseudo_node_t	*pseudo;
1044 	ibnex_node_data_t	*node_datap;
1045 	ibnex_port_node_t	*port_node;
1046 	ibnex_ioc_node_t	*ioc;
1047 
1048 	node_datap = ddi_get_parent_data(child);
1049 	if (node_datap == NULL) {
1050 		IBTF_DPRINTF_L2("ibnex", "\tname_child: Node data is NULL");
1051 		return (DDI_NOT_WELL_FORMED);
1052 	}
1053 	IBTF_DPRINTF_L4("ibnex", "\tname_sid_child: Node data %p"
1054 	    "Node type %x", node_datap, node_datap->node_type);
1055 	switch (node_datap->node_type) {
1056 	case IBNEX_PORT_COMMSVC_NODE:
1057 		port_node = &node_datap->node_data.port_node;
1058 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1059 		    port_node->port_num,
1060 		    ibnex.ibnex_comm_svc_names[port_node->port_commsvc_idx]);
1061 		break;
1062 	case IBNEX_VPPA_COMMSVC_NODE:
1063 		port_node = &node_datap->node_data.port_node;
1064 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,%x,%s",
1065 		    port_node->port_num, port_node->port_pkey, ibnex.
1066 		    ibnex_vppa_comm_svc_names[port_node->port_commsvc_idx]);
1067 		break;
1068 	case IBNEX_HCASVC_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_hcasvc_comm_svc_names[port_node->
1073 		    port_commsvc_idx]);
1074 		break;
1075 	case IBNEX_IOC_NODE:
1076 		ioc = &node_datap->node_data.ioc_node;
1077 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%llX,%llX",
1078 		    (longlong_t)ioc->ioc_guid, (longlong_t)ioc->iou_guid);
1079 		break;
1080 	case IBNEX_PSEUDO_NODE:
1081 		pseudo = &node_datap->node_data.pseudo_node;
1082 		(void) snprintf(name,
1083 		    IBNEX_MAX_NODEADDR_SZ, pseudo->pseudo_unit_addr);
1084 		break;
1085 	default:
1086 		IBTF_DPRINTF_L2("ibnex", "\name_child: Not well formed");
1087 		return (DDI_NOT_WELL_FORMED);
1088 	}
1089 
1090 	return (DDI_SUCCESS);
1091 }
1092 
1093 
1094 /*
1095  * ibnex_bus_config()
1096  *
1097  * BUS_CONFIG_ONE:
1098  *	Enumerate the exact instance of the driver. Use the device node name
1099  *	to locate the exact instance.
1100  *	Query IBDM to find whether the hardware exits for the instance of the
1101  *	driver. If exists, create a device node and return NDI_SUCCESS.
1102  *
1103  * BUS_CONFIG_ALL:
1104  *	Enumerate all the instances of all the possible children (seen before
1105  *	and never seen before).
1106  *
1107  * BUS_CONFIG_DRIVER:
1108  *	Enumerate all the instances of a particular driver.
1109  */
1110 static int
1111 ibnex_bus_config(dev_info_t *parent, uint_t flag,
1112     ddi_bus_config_op_t op, void *devname, dev_info_t **child)
1113 {
1114 	int			ret = IBNEX_SUCCESS, len, circ, need_bus_config;
1115 	char 			*device_name, *cname = NULL, *caddr = NULL;
1116 	char			*device_name1;
1117 	char			*srvname, nameaddr[MAXNAMELEN];
1118 	dev_info_t		*cdip, *pdip = NULL;
1119 	ibnex_node_data_t	*node_data;
1120 	ibnex_port_node_t	*port_node;
1121 	int			use_mdi_devi_locking = 0;
1122 
1123 	if (parent != ibnex.ibnex_dip) {
1124 		/*
1125 		 * This must be an HCA.In a normal case HCA is setup as a phci.
1126 		 * If an HCA is in maintenance mode, its phci is not set up
1127 		 * but the driver is attached to update the firmware. In this
1128 		 * case, do not configure the MPxIO clients.
1129 		 */
1130 		if (mdi_component_is_phci(parent, NULL) == MDI_FAILURE) {
1131 			if (op == BUS_CONFIG_ALL || op == BUS_CONFIG_DRIVER)
1132 				return (NDI_SUCCESS);
1133 			else
1134 				return (NDI_FAILURE);
1135 		}
1136 
1137 		/* Set use_mdi_devi_locking appropriately */
1138 		if ((op != BUS_CONFIG_ONE) || (op == BUS_CONFIG_ONE &&
1139 		    strncmp((char *)devname, IBNEX_IBPORT_CNAME, 6) != 0)) {
1140 			IBTF_DPRINTF_L4("ibnex",
1141 			    "\tbus_config: using mdi_devi_enter");
1142 			use_mdi_devi_locking = 1;
1143 		}
1144 	}
1145 
1146 	if (use_mdi_devi_locking)
1147 		mdi_devi_enter(parent, &circ);
1148 	else
1149 		ndi_devi_enter(parent, &circ);
1150 
1151 	switch (op) {
1152 	case BUS_CONFIG_ONE:
1153 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ONE, "
1154 		    "parent %p", parent);
1155 
1156 		len = strlen((char *)devname) + 1;
1157 		device_name = i_ddi_strdup(devname, KM_SLEEP);
1158 		i_ddi_parse_name(device_name, &cname, &caddr, NULL);
1159 
1160 		if (caddr == NULL || (strlen(caddr) == 0)) {
1161 			kmem_free(device_name, len);
1162 			if (use_mdi_devi_locking)
1163 				mdi_devi_exit(parent, circ);
1164 			else
1165 				ndi_devi_exit(parent, circ);
1166 			return (NDI_FAILURE);
1167 		}
1168 
1169 		/*
1170 		 * i_ddi_parse_name() strips of the address portion
1171 		 * of the device name. Recreate device name for
1172 		 * ndi_devi_findchild
1173 		 */
1174 		device_name1 = i_ddi_strdup(devname, KM_SLEEP);
1175 
1176 		IBTF_DPRINTF_L4("ibnex",
1177 		    "\tbus_config: cname %s addr %s", cname, caddr);
1178 
1179 		cdip = ndi_devi_findchild(parent, device_name1);
1180 		if (cdip)
1181 			node_data = ddi_get_parent_data(cdip);
1182 		kmem_free(device_name1, len);
1183 		if (cdip == NULL || (node_data != NULL &&
1184 		    node_data->node_dip == NULL)) {
1185 			/* Node is not present */
1186 			if (strncmp(cname, IBNEX_IOC_CNAME, 3) == 0) {
1187 				if (use_mdi_devi_locking)
1188 					mdi_devi_exit(parent, circ);
1189 				else
1190 					ndi_devi_exit(parent, circ);
1191 
1192 				ret = ibnex_ioc_bus_config_one(&parent, flag,
1193 				    op, devname, child, &need_bus_config);
1194 				if (!need_bus_config) {
1195 					kmem_free(device_name, len);
1196 					return (ret);
1197 				}
1198 
1199 				if (use_mdi_devi_locking)
1200 					mdi_devi_enter(parent, &circ);
1201 				else
1202 					ndi_devi_enter(parent, &circ);
1203 			} else if ((strncmp(cname,
1204 			    IBNEX_IBPORT_CNAME, 6) == 0) &&
1205 			    (parent != ibnex.ibnex_dip)) { /* parent is HCA */
1206 				cdip = ibnex_config_port_node(parent, devname);
1207 				if (cdip)
1208 					ret = IBNEX_SUCCESS;
1209 				else
1210 					ret = IBNEX_FAILURE;
1211 			} else {
1212 				/*
1213 				 * if not IOC or PORT device then always
1214 				 * assume a Pseudo child
1215 				 *
1216 				 * if IB Nexus is the parent, call MDI.
1217 				 * else if HCA is the parent, enumerate
1218 				 * the Pseudo node.
1219 				 */
1220 				ret = IBNEX_SUCCESS;
1221 				ibnex_pseudo_initnodes();
1222 				if (parent == ibnex.ibnex_dip) {
1223 					if (use_mdi_devi_locking)
1224 						mdi_devi_exit(parent, circ);
1225 					else
1226 						ndi_devi_exit(parent, circ);
1227 
1228 					mutex_enter(&ibnex.ibnex_mutex);
1229 					ret = ibnex_pseudo_mdi_config_one(
1230 					    flag, devname, child, cname,
1231 					    caddr);
1232 					mutex_exit(&ibnex.ibnex_mutex);
1233 					kmem_free(device_name, len);
1234 					return (ret);
1235 				}
1236 				mutex_enter(&ibnex.ibnex_mutex);
1237 				ret = ibnex_pseudo_config_one(NULL,
1238 				    caddr, parent);
1239 				mutex_exit(&ibnex.ibnex_mutex);
1240 			}
1241 		}
1242 
1243 		if (strncmp(cname, IBNEX_IBPORT_CNAME, 6) == 0) {
1244 			/* Allows enumeration under PHCI */
1245 			flag |= NDI_MDI_FALLBACK;
1246 		}
1247 		kmem_free(device_name, len);
1248 		break;
1249 
1250 	case BUS_CONFIG_OBP_ARGS:
1251 		cdip = ibnex_config_obp_args(parent, devname);
1252 		if (cdip) {
1253 			/*
1254 			 * Boot case.
1255 			 * Special handling because the "devname"
1256 			 * format for the enumerated device is
1257 			 * different.
1258 			 */
1259 			node_data = ddi_get_parent_data(cdip);
1260 			port_node = &node_data->node_data.port_node;
1261 			if (node_data->node_type ==
1262 			    IBNEX_VPPA_COMMSVC_NODE) {
1263 				srvname =
1264 				    ibnex.ibnex_vppa_comm_svc_names[
1265 				    port_node->port_commsvc_idx];
1266 				(void) snprintf(nameaddr, MAXNAMELEN,
1267 				    "ibport@%x,%x,%s",
1268 				    port_node->port_num,
1269 				    port_node->port_pkey, srvname);
1270 			}
1271 			devname = (void *)nameaddr;
1272 		} else {
1273 			IBTF_DPRINTF_L2("ibnex",
1274 			    "\tbus_config: CONFIG_OBP_ARGS : invalid state!!");
1275 
1276 			ret = IBNEX_FAILURE;
1277 		}
1278 		break;
1279 	case BUS_CONFIG_ALL:
1280 		/*FALLTHRU*/
1281 	case BUS_CONFIG_DRIVER:
1282 		if (op == BUS_CONFIG_ALL)
1283 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ALL, "
1284 			    "parent %p", parent);
1285 		else
1286 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_DRIVER"
1287 			    ", parent %p", parent);
1288 
1289 		/*
1290 		 * No locks to be held while calling mdi_vhci_bus_config()
1291 		 * ibnex_config_all_children() holds appropriate locks.
1292 		 */
1293 		if (use_mdi_devi_locking)
1294 			mdi_devi_exit(parent, circ);
1295 		else
1296 			ndi_devi_exit(parent, circ);
1297 
1298 		/*
1299 		 * Drive CONFIG requests for IB Nexus parent through
1300 		 * MDI. This is needed to load the HCA drivers in x86 SRP
1301 		 * boot case.
1302 		 *
1303 		 * CONFIG Requests with HCA parent will probe devices using
1304 		 * ibdm and configure all children.
1305 		 */
1306 		if (parent == ibnex.ibnex_dip) {
1307 			ibdm_ioc_info_t	*ioc_list, *new_ioc_list;
1308 
1309 			mutex_enter(&ibnex.ibnex_mutex);
1310 			while (ibnex.ibnex_ioc_list_state !=
1311 			    IBNEX_IOC_LIST_READY) {
1312 				cv_wait(&ibnex.ibnex_ioc_list_cv,
1313 				    &ibnex.ibnex_mutex);
1314 			}
1315 			ibnex.ibnex_ioc_list_state = IBNEX_IOC_LIST_RENEW;
1316 			mutex_exit(&ibnex.ibnex_mutex);
1317 			/* Enumerate all the IOC's */
1318 			ibdm_ibnex_port_settle_wait(0,
1319 			    ibnex_port_settling_time);
1320 
1321 			new_ioc_list = ibdm_ibnex_get_ioc_list(
1322 			    IBDM_IBNEX_NORMAL_PROBE);
1323 			IBTF_DPRINTF_L4("ibnex",
1324 			    "\tbus_config: alloc ioc_list %p", new_ioc_list);
1325 			/*
1326 			 * Optimize the calls for each BUS_CONFIG_ALL request
1327 			 * to the IB Nexus dip. This is currently done for
1328 			 * each PDIP.
1329 			 */
1330 			mutex_enter(&ibnex.ibnex_mutex);
1331 			ioc_list = ibnex.ibnex_ioc_list;
1332 			ibnex.ibnex_ioc_list = new_ioc_list;
1333 			ibnex.ibnex_ioc_list_state = IBNEX_IOC_LIST_READY;
1334 			cv_broadcast(&ibnex.ibnex_ioc_list_cv);
1335 			mutex_exit(&ibnex.ibnex_mutex);
1336 
1337 			if (ioc_list) {
1338 				IBTF_DPRINTF_L4("ibnex",
1339 				    "\tbus_config: freeing ioc_list %p",
1340 				    ioc_list);
1341 				ibdm_ibnex_free_ioc_list(ioc_list);
1342 			}
1343 
1344 
1345 			ret = mdi_vhci_bus_config(parent,
1346 			    flag, op, devname, child, NULL);
1347 			return (ret);
1348 		} else {
1349 			ibnex_config_all_children(parent);
1350 
1351 			if (use_mdi_devi_locking)
1352 				mdi_devi_enter(parent, &circ);
1353 			else
1354 				ndi_devi_enter(parent, &circ);
1355 		}
1356 		break;
1357 	default:
1358 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: error");
1359 		ret = IBNEX_FAILURE;
1360 		break;
1361 	}
1362 
1363 	if (use_mdi_devi_locking)
1364 		mdi_devi_exit(parent, circ);
1365 	else
1366 		ndi_devi_exit(parent, circ);
1367 
1368 	if (ret == IBNEX_SUCCESS) {
1369 		if (op == BUS_CONFIG_OBP_ARGS)
1370 			op = BUS_CONFIG_ONE;
1371 
1372 		if (pdip == NULL)
1373 			pdip = parent;
1374 
1375 		ret = ndi_busop_bus_config(
1376 		    pdip, flag, op, devname, child, 0);
1377 		IBTF_DPRINTF_L4("ibnex", "\tbus_config:"
1378 		    "ndi_busop_bus_config : retval %d", ret);
1379 		return (ret);
1380 	}
1381 
1382 	return (NDI_FAILURE);
1383 }
1384 
1385 
1386 /*
1387  * ibnex_config_root_iocnode()
1388  *	Configures one particular instance of the IOC driver.
1389  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1390  */
1391 static int
1392 ibnex_config_root_iocnode(dev_info_t *parent, char *device_name)
1393 {
1394 	int			ret, port = 0, iter = 0;
1395 	boolean_t		displayed = B_FALSE;
1396 	char			*portstr;
1397 	ib_guid_t		hca_guid, iou_guid, ioc_guid;
1398 	ibdm_ioc_info_t		*ioc_info;
1399 	ibdm_port_attr_t	*port_attr;
1400 
1401 	IBTF_DPRINTF_L4("ibnex",
1402 	    "\tconfig_root_iocnode: name %s", device_name);
1403 
1404 	portstr = strstr(device_name, ":port=");
1405 	if (portstr == NULL) {
1406 		return (IBNEX_FAILURE);
1407 	}
1408 
1409 	portstr[0] = 0; portstr++;
1410 	if (ibnex_devname2port(portstr, &port)) {
1411 		IBTF_DPRINTF_L4("ibnex", "\tconfig_root_iocnode: invalid port");
1412 		return (IBNEX_FAILURE);
1413 	}
1414 
1415 	if (ibnex_devname_to_node_n_ioc_guids(
1416 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
1417 		return (IBNEX_FAILURE);
1418 	}
1419 
1420 	(void) snprintf(device_name, (IBNEX_MAX_NODEADDR_SZ + 4),
1421 	    "ioc@%llX,%llX", (longlong_t)ioc_guid, (longlong_t)iou_guid);
1422 
1423 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1424 	if ((port_attr = ibdm_ibnex_probe_hcaport(hca_guid, port)) == NULL) {
1425 		IBTF_DPRINTF_L2("ibnex",
1426 		    "\tconfig_root_iocnode: Port does not exist");
1427 		return (IBNEX_FAILURE);
1428 	}
1429 
1430 	/* Wait until "port is up" */
1431 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1432 		ibdm_ibnex_free_port_attr(port_attr);
1433 		delay(drv_usectohz(10000));
1434 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1435 		    hca_guid, port)) == NULL) {
1436 			return (IBNEX_FAILURE);
1437 		}
1438 
1439 		if (iter++ == 400) {
1440 			if (displayed == B_FALSE) {
1441 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1442 				    "initialization", port_attr->pa_port_num);
1443 				displayed = B_TRUE;
1444 			}
1445 		}
1446 	}
1447 	ibdm_ibnex_free_port_attr(port_attr);
1448 	IBTF_DPRINTF_L4("ibnex", "\tconfig_rootioc_node:"
1449 	    "Port is initialized");
1450 
1451 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) == NULL) {
1452 		ibdm_ibnex_free_ioc_list(ioc_info);
1453 		return (IBNEX_FAILURE);
1454 	}
1455 	mutex_enter(&ibnex.ibnex_mutex);
1456 	if ((ret = ibnex_ioc_config_from_pdip(ioc_info, parent, 0)) !=
1457 	    IBNEX_SUCCESS) {
1458 		IBTF_DPRINTF_L2("ibnex",
1459 		    "\tconfig_root_ioc_node failed for pdip %p", parent);
1460 	}
1461 	mutex_exit(&ibnex.ibnex_mutex);
1462 	ibdm_ibnex_free_ioc_list(ioc_info);
1463 	return (ret);
1464 }
1465 
1466 
1467 static int
1468 ibnex_devname2port(char *portstr, int *port)
1469 {
1470 	char	*temp;
1471 	int	ret = IBNEX_FAILURE;
1472 
1473 	IBTF_DPRINTF_L4("ibnex", "\tdevname2port: Begin");
1474 
1475 	temp = strchr(portstr, '=');
1476 	if (temp != NULL) {
1477 		temp++;
1478 		*port = ibnex_str2int(temp, strlen(temp), &ret);
1479 	}
1480 	return (ret);
1481 }
1482 
1483 
1484 /*
1485  * ibnex_config_all_children()
1486  *	Wait for lata SM initialization case before enumerating the nodes
1487  *	Get list of HCA's and HCA port information
1488  *		Create device device nodes and its node properties
1489  *		for port nodes and VPPA nodes
1490  *	Get list of all the IOC node information
1491  *		Create device nodes and its properties for all the IOCs
1492  *		if not created already
1493  *	Bind drivers for all the newly created device nodes
1494  *	Support Pseudo nodes enumerated using their .conf file
1495  */
1496 static void
1497 ibnex_config_all_children(dev_info_t *parent)
1498 {
1499 	int			ii;
1500 	ibdm_ioc_info_t		*ioc_list;
1501 	ibdm_hca_list_t		*hca_list;
1502 	ib_guid_t		hca_guid;
1503 	int			circ;
1504 
1505 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: Begin");
1506 
1507 	/*
1508 	 * Enumerate children of this HCA, port nodes,
1509 	 * VPPA & HCA_SVC nodes. Use ndi_devi_enter() for
1510 	 * locking. IB Nexus is enumerating the children
1511 	 * of HCA, not MPXIO clients.
1512 	 */
1513 	ndi_devi_enter(parent, &circ);
1514 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1515 	ibdm_ibnex_port_settle_wait(hca_guid, ibnex_port_settling_time);
1516 	hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1517 	if (hca_list == NULL) {
1518 		ndi_devi_exit(parent, circ);
1519 		return;
1520 	}
1521 	ibnex_create_hcasvc_nodes(parent, hca_list->hl_hca_port_attr);
1522 	for (ii = 0; ii < hca_list->hl_nports; ii++) {
1523 		ibnex_create_port_nodes(
1524 		    parent, &hca_list->hl_port_attr[ii]);
1525 		ibnex_create_vppa_nodes(
1526 		    parent, &hca_list->hl_port_attr[ii]);
1527 	}
1528 	ibdm_ibnex_free_hca_list(hca_list);
1529 	ndi_devi_exit(parent, circ);
1530 
1531 	/*
1532 	 * Use mdi_devi_enter() for locking. IB Nexus is
1533 	 * enumerating MPxIO clients.
1534 	 */
1535 	mdi_devi_enter(parent, &circ);
1536 
1537 	ibnex_pseudo_initnodes();
1538 
1539 	mutex_enter(&ibnex.ibnex_mutex);
1540 	while (ibnex.ibnex_ioc_list_state != IBNEX_IOC_LIST_READY) {
1541 		cv_wait(&ibnex.ibnex_ioc_list_cv, &ibnex.ibnex_mutex);
1542 	}
1543 	ibnex.ibnex_ioc_list_state = IBNEX_IOC_LIST_ACCESS;
1544 	ioc_list = ibnex.ibnex_ioc_list;
1545 	while (ioc_list) {
1546 		(void) ibnex_ioc_config_from_pdip(ioc_list, parent, 0);
1547 		ioc_list = ioc_list->ioc_next;
1548 	}
1549 	ibnex.ibnex_ioc_list_state = IBNEX_IOC_LIST_READY;
1550 	cv_broadcast(&ibnex.ibnex_ioc_list_cv);
1551 
1552 	/* Config IBTF Pseudo clients */
1553 	ibnex_config_pseudo_all(parent);
1554 
1555 	mutex_exit(&ibnex.ibnex_mutex);
1556 	mdi_devi_exit(parent, circ);
1557 
1558 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: End");
1559 }
1560 
1561 
1562 /*
1563  * ibnex_create_port_nodes:
1564  *	Creates a device node per each communication service defined
1565  *	in the "port-commsvc-list" property per HCA port
1566  */
1567 static void
1568 ibnex_create_port_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1569 {
1570 	int		idx;
1571 	dev_info_t	*dip;
1572 	int		rval;
1573 
1574 	mutex_enter(&ibnex.ibnex_mutex);
1575 	for (idx = 0; idx < ibnex.ibnex_num_comm_svcs; idx++) {
1576 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1577 		    idx, 0, &dip);
1578 		if (rval != IBNEX_SUCCESS) {
1579 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1580 			    IBNEX_PORT_COMMSVC_NODE, 0, &rval,
1581 			    IBNEX_DEVFS_ENUMERATE);
1582 		}
1583 	}
1584 	mutex_exit(&ibnex.ibnex_mutex);
1585 }
1586 
1587 
1588 /*
1589  * ibnex_create_vppa_nodes:
1590  *	Creates a device node per each communication service defined
1591  *	in the "vppa-commsvc-list" property and per each PKEY that
1592  *	this particular port supports and per HCA port
1593  */
1594 static void
1595 ibnex_create_vppa_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1596 {
1597 	int 		idx, ii;
1598 	int		rval;
1599 	ib_pkey_t 	pkey;
1600 	dev_info_t	*dip;
1601 
1602 	IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: Begin");
1603 
1604 	mutex_enter(&ibnex.ibnex_mutex);
1605 	if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1606 		IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: "
1607 		    "Port %d is down", port_attr->pa_port_num);
1608 		mutex_exit(&ibnex.ibnex_mutex);
1609 		return;
1610 	}
1611 	for (idx = 0; idx < ibnex.ibnex_nvppa_comm_svcs; idx++) {
1612 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1613 			pkey = port_attr->pa_pkey_tbl[ii].pt_pkey;
1614 
1615 			if (IBNEX_INVALID_PKEY(pkey)) {
1616 				continue;
1617 			}
1618 			rval = ibnex_get_dip_from_guid(
1619 			    port_attr->pa_port_guid, idx, pkey, &dip);
1620 			if ((rval != IBNEX_SUCCESS) || (dip == NULL)) {
1621 				(void) ibnex_commsvc_initnode(parent, port_attr,
1622 				    idx, IBNEX_VPPA_COMMSVC_NODE,
1623 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1624 				IBTF_DPRINTF_L5("ibnex", "\tcreate_vppa_nodes: "
1625 				    "commsvc_initnode failed rval %x", rval);
1626 			}
1627 		}
1628 	}
1629 	mutex_exit(&ibnex.ibnex_mutex);
1630 }
1631 
1632 
1633 /*
1634  * ibnex_create_hcasvc_nodes:
1635  *	Creates a device node per each communication service defined
1636  *	in the "port-commsvc-list" property per HCA port
1637  */
1638 static void
1639 ibnex_create_hcasvc_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1640 {
1641 	int		idx;
1642 	dev_info_t	*dip;
1643 	int		rval;
1644 
1645 	mutex_enter(&ibnex.ibnex_mutex);
1646 	for (idx = 0; idx < ibnex.ibnex_nhcasvc_comm_svcs; idx++) {
1647 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1648 		    idx, 0, &dip);
1649 		if (rval != IBNEX_SUCCESS) {
1650 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1651 			    IBNEX_HCASVC_COMMSVC_NODE, 0, &rval,
1652 			    IBNEX_DEVFS_ENUMERATE);
1653 			IBTF_DPRINTF_L5("ibnex", "create_hcasvc_nodes: "
1654 			    "commsvc_initnode failed, rval %x", rval);
1655 		}
1656 	}
1657 	mutex_exit(&ibnex.ibnex_mutex);
1658 }
1659 
1660 
1661 /*
1662  * ibnex_bus_unconfig()
1663  *
1664  *	Unconfigure a particular device node or all instance of a device
1665  *	driver device or all children of IBnex
1666  */
1667 static int
1668 ibnex_bus_unconfig(dev_info_t *parent,
1669     uint_t flag, ddi_bus_config_op_t op, void *device_name)
1670 {
1671 	ibnex_node_data_t	*ndp;
1672 	major_t			major = (major_t)(uintptr_t)device_name;
1673 	dev_info_t		*dip = NULL;
1674 
1675 	if (ndi_busop_bus_unconfig(parent, flag, op, device_name) !=
1676 	    DDI_SUCCESS)
1677 		return (DDI_FAILURE);
1678 
1679 	/*
1680 	 * We can come into this routine with dip as ibnexus dip or hca dip.
1681 	 * When the dip is that of ib nexus we need to clean up the IOC and
1682 	 * pseudo nodes. When the dip is that of an HCA (not IB nexus dip)
1683 	 * cleanup the port nodes.
1684 	 */
1685 	if ((op == BUS_UNCONFIG_ALL || op == BUS_UNCONFIG_DRIVER) &&
1686 	    (flag & (NDI_UNCONFIG | NDI_DETACH_DRIVER))) {
1687 		mutex_enter(&ibnex.ibnex_mutex);
1688 		if (parent != ibnex.ibnex_dip) {
1689 			if (major == -1) {
1690 				/*
1691 				 * HCA dip. When major number is -1 HCA is
1692 				 * going away cleanup all the port nodes.
1693 				 */
1694 				for (ndp = ibnex.ibnex_port_node_head;
1695 				    ndp; ndp = ndp->node_next) {
1696 					ibnex_port_node_t	*port_node;
1697 
1698 					port_node = &ndp->node_data.port_node;
1699 					if (port_node->port_pdip == parent) {
1700 						port_node->port_pdip = NULL;
1701 						ndp->node_dip = NULL;
1702 						ndp->node_state =
1703 						    IBNEX_CFGADM_UNCONFIGURED;
1704 					}
1705 				}
1706 			} else {
1707 				/*
1708 				 * HCA dip. Cleanup only the port nodes that
1709 				 * match the major number.
1710 				 */
1711 				for (ndp = ibnex.ibnex_port_node_head;
1712 				    ndp; ndp = ndp->node_next) {
1713 					ibnex_port_node_t	*port_node;
1714 
1715 					port_node = &ndp->node_data.port_node;
1716 					dip = ndp->node_dip;
1717 					if (dip && (ddi_driver_major(dip) ==
1718 					    major) && port_node->port_pdip ==
1719 					    parent) {
1720 						port_node->port_pdip = NULL;
1721 						ndp->node_dip = NULL;
1722 						ndp->node_state =
1723 						    IBNEX_CFGADM_UNCONFIGURED;
1724 					}
1725 				}
1726 			}
1727 		} else {
1728 			/*
1729 			 * IB dip. here we handle IOC and pseudo nodes which
1730 			 * are the children of IB nexus. Cleanup only the nodes
1731 			 * with matching major number. We also need to cleanup
1732 			 * the PathInfo links to the PHCI here.
1733 			 */
1734 			for (ndp = ibnex.ibnex_ioc_node_head;
1735 			    ndp; ndp = ndp->node_next) {
1736 				dip = ndp->node_dip;
1737 				if (dip && (ddi_driver_major(dip) == major)) {
1738 					ibnex_offline_childdip(dip);
1739 				}
1740 			}
1741 			for (ndp = ibnex.ibnex_pseudo_node_head;
1742 			    ndp; ndp = ndp->node_next) {
1743 				dip = ndp->node_dip;
1744 				if (dip && (ddi_driver_major(dip) == major)) {
1745 					ibnex_offline_childdip(dip);
1746 				}
1747 			}
1748 		}
1749 		mutex_exit(&ibnex.ibnex_mutex);
1750 	}
1751 	return (DDI_SUCCESS);
1752 }
1753 
1754 
1755 /*
1756  * ibnex_config_port_node()
1757  *
1758  *	Configures a particular port / HCA  node for a particular
1759  *	communication service.
1760  *	The format of the device_name is
1761  *		ibport@<Port#>,<pkey>,<service name>
1762  *	where pkey = 0 for port communication service nodes
1763  *		  Port# = 0 for HCA_SVC communication service nodes
1764  *	Returns "dev_info_t" of the "child" node just created
1765  *	NULL when failed to enumerate the child node
1766  */
1767 static dev_info_t *
1768 ibnex_config_port_node(dev_info_t *parent, char *devname)
1769 {
1770 	int			ii, index;
1771 	int			rval;
1772 	uint8_t			port_num;
1773 	ib_guid_t		hca_guid, port_guid;
1774 	ib_pkey_t		pkey;
1775 	dev_info_t		*cdip;
1776 	ibdm_port_attr_t	*port_attr;
1777 	ibdm_hca_list_t		*hca_list;
1778 
1779 	IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: %s", devname);
1780 
1781 	if (ibnex_get_pkey_commsvc_index_portnum(devname,
1782 	    &index, &pkey, &port_num) != IBNEX_SUCCESS) {
1783 		IBTF_DPRINTF_L2("ibnex",
1784 		    "\tconfig_port_node: Invalid Service Name");
1785 		return (NULL);
1786 	}
1787 
1788 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1789 	if (port_num == 0) {
1790 		/*
1791 		 * Use the dummy port attribute for HCA node in hca_list
1792 		 * Note : pa_state is always IBT_PORT_ACTIVE.
1793 		 */
1794 		hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1795 		ASSERT(hca_list != NULL);
1796 		port_attr = hca_list->hl_hca_port_attr;
1797 	} else {
1798 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1799 		    hca_guid, port_num)) == NULL) {
1800 			IBTF_DPRINTF_L2("ibnex",
1801 			    "\tconfig_port_node: Port does not exist");
1802 			return (NULL);
1803 		}
1804 
1805 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1806 			ibdm_ibnex_port_settle_wait(
1807 			    hca_guid, ibnex_port_settling_time);
1808 			ibdm_ibnex_free_port_attr(port_attr);
1809 			if ((port_attr = ibdm_ibnex_probe_hcaport(
1810 			    hca_guid, port_num)) == NULL) {
1811 				return (NULL);
1812 			}
1813 		}
1814 	}
1815 
1816 	port_guid = port_attr->pa_port_guid;
1817 	mutex_enter(&ibnex.ibnex_mutex);
1818 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1819 	    &cdip)) == IBNEX_SUCCESS) {
1820 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1821 		mutex_exit(&ibnex.ibnex_mutex);
1822 		if (port_num != 0)
1823 			ibdm_ibnex_free_port_attr(port_attr);
1824 		else
1825 			ibdm_ibnex_free_hca_list(hca_list);
1826 		return (cdip);
1827 	}
1828 
1829 	if (pkey == 0 && port_num != 0) {
1830 		cdip = ibnex_commsvc_initnode(parent,
1831 		    port_attr, index, IBNEX_PORT_COMMSVC_NODE, pkey, &rval,
1832 		    IBNEX_DEVFS_ENUMERATE);
1833 		IBTF_DPRINTF_L5("ibnex",
1834 		    "\t ibnex_commsvc_initnode rval %x", rval);
1835 	} else if (pkey == 0 && port_num == 0) {
1836 		cdip = ibnex_commsvc_initnode(parent,
1837 		    port_attr, index, IBNEX_HCASVC_COMMSVC_NODE, pkey, &rval,
1838 		    IBNEX_DEVFS_ENUMERATE);
1839 		IBTF_DPRINTF_L5("ibnex",
1840 		    "\t ibnex_commsvc_initnode rval %x", rval);
1841 	} else {
1842 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1843 			IBTF_DPRINTF_L4("ibnex", "\tconfig_port_nodes: "
1844 			    "Port %d is down", port_attr->pa_port_num);
1845 			ibdm_ibnex_free_port_attr(port_attr);
1846 			mutex_exit(&ibnex.ibnex_mutex);
1847 			return (NULL);
1848 		}
1849 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1850 			if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1851 				cdip = ibnex_commsvc_initnode(parent, port_attr,
1852 				    index, IBNEX_VPPA_COMMSVC_NODE,
1853 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1854 				IBTF_DPRINTF_L5("ibnex",
1855 				    "\t ibnex_commsvc_initnode rval %x", rval);
1856 				break;
1857 			}
1858 		}
1859 	}
1860 	mutex_exit(&ibnex.ibnex_mutex);
1861 	if (port_num != 0)
1862 		ibdm_ibnex_free_port_attr(port_attr);
1863 	else
1864 		ibdm_ibnex_free_hca_list(hca_list);
1865 	return (cdip);
1866 }
1867 
1868 
1869 /*
1870  * ibnex_config_obp_args()
1871  *	Configures a particular port node for a IP over IB communication
1872  *	service.
1873  *	The format of the input string "devname" is
1874  *		port=x,pkey=y,protocol=ip,<wanboot options>
1875  *	Thr format of the node name created here is
1876  *		ibport@<Port#>,<pkey>,<service name>
1877  *	where pkey = 0 for port communication service nodes
1878  *	Returns "dev_info_t" of the "child" node just created
1879  *	NULL when failed to enumerate the child node
1880  *
1881  */
1882 static dev_info_t *
1883 ibnex_config_obp_args(dev_info_t *parent, char *devname)
1884 {
1885 	int			ii, index;
1886 	int			rval, iter = 0;
1887 	char			*temp;
1888 	uint8_t			port_num;
1889 	ib_guid_t		hca_guid, port_guid;
1890 	ib_pkey_t		pkey;
1891 	dev_info_t		*cdip;
1892 	boolean_t		displayed = B_FALSE;
1893 	ibdm_port_attr_t	*port_attr;
1894 
1895 	IBTF_DPRINTF_L4("ibnex", "\tconfig_obp_args: %s", devname);
1896 
1897 	/* Is this OBP node for IPoIB ? */
1898 	temp = devname;
1899 	do {
1900 		temp = strstr(temp, ",protocol=ip");
1901 		if (temp == NULL)
1902 			break;
1903 
1904 		if (strlen(devname) > (int)((temp - devname) + 12)) {
1905 			if (temp[12] == ',')
1906 				break;
1907 		} else {
1908 			break;
1909 		}
1910 		temp++;
1911 	} while (temp);
1912 
1913 	if (temp == NULL)
1914 		return (NULL);
1915 	if (ibnex_prom_devname_to_pkey_n_portnum(
1916 	    devname, &pkey, &port_num) != IBNEX_SUCCESS) {
1917 		return (NULL);
1918 	}
1919 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
1920 		if (strcmp(ibnex.ibnex_vppa_comm_svc_names[index],
1921 		    "ipib") == 0) {
1922 			break;
1923 		}
1924 	}
1925 
1926 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1927 	if ((port_attr = ibdm_ibnex_probe_hcaport(
1928 	    hca_guid, port_num)) == NULL) {
1929 		IBTF_DPRINTF_L2("ibnex",
1930 		    "\tconfig_port_node: Port does not exist");
1931 		return (NULL);
1932 	}
1933 
1934 	/* Wait until "port is up" */
1935 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1936 		ibdm_ibnex_free_port_attr(port_attr);
1937 		delay(drv_usectohz(10000));
1938 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1939 		    hca_guid, port_num)) == NULL) {
1940 			return (NULL);
1941 		}
1942 		if (iter++ == 400) {
1943 			if (displayed == B_FALSE) {
1944 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1945 				    "initialization", port_attr->pa_port_num);
1946 				displayed = B_TRUE;
1947 			}
1948 		}
1949 	}
1950 	IBTF_DPRINTF_L4("ibnex", "\tPort is initialized");
1951 
1952 	mutex_enter(&ibnex.ibnex_mutex);
1953 	port_guid = port_attr->pa_port_guid;
1954 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1955 	    &cdip)) == IBNEX_SUCCESS) {
1956 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1957 		mutex_exit(&ibnex.ibnex_mutex);
1958 		ibdm_ibnex_free_port_attr(port_attr);
1959 		return (cdip);
1960 	}
1961 	for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1962 		if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1963 			cdip = ibnex_commsvc_initnode(parent, port_attr,
1964 			    index, IBNEX_VPPA_COMMSVC_NODE, pkey, &rval,
1965 			    IBNEX_CFGADM_ENUMERATE);
1966 			IBTF_DPRINTF_L5("ibnex",
1967 			    "\t ibnex_commsvc_initnode rval %x", rval);
1968 			break;
1969 		}
1970 	}
1971 	mutex_exit(&ibnex.ibnex_mutex);
1972 
1973 	ibdm_ibnex_free_port_attr(port_attr);
1974 	return (cdip);
1975 }
1976 
1977 
1978 /*
1979  * ibnex_prom_devname_to_pkey_n_portnum()
1980  *	Parses the device node name and extracts "PKEY" and "port#"
1981  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1982  */
1983 static int
1984 ibnex_prom_devname_to_pkey_n_portnum(
1985     char *devname, ib_pkey_t *pkey, uint8_t *port)
1986 {
1987 	int	ret = IBNEX_SUCCESS;
1988 	char	*tmp, *tmp1;
1989 
1990 	if ((tmp = strstr(devname, "port=")) != NULL) {
1991 		if ((tmp = strchr(++tmp, '=')) != NULL)
1992 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
1993 				*port = ibnex_str2int(tmp, (tmp1 - tmp), &ret);
1994 	} else
1995 		ret = IBNEX_FAILURE;
1996 
1997 	if ((ret == IBNEX_SUCCESS) &&
1998 	    (tmp = strstr(devname, "pkey=")) != NULL) {
1999 		if ((tmp = strchr(++tmp, '=')) != NULL)
2000 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
2001 				*pkey = ibnex_str2hex(tmp, (tmp1 - tmp), &ret);
2002 	} else
2003 		ret = IBNEX_FAILURE;
2004 
2005 	return (ret);
2006 }
2007 
2008 
2009 /*
2010  * ibnex_get_pkey_commsvc_index_portnum()
2011  *	Parses the device node name and extracts PKEY, communication
2012  *	service index & Port #.
2013  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2014  */
2015 static int
2016 ibnex_get_pkey_commsvc_index_portnum(char *device_name, int *index,
2017     ib_pkey_t *pkey, uint8_t *port_num)
2018 {
2019 	char 	*srv, **service_name, *temp;
2020 	int  	ii, ncommsvcs, ret;
2021 
2022 	if (ibnex_devname_to_portnum(device_name, port_num) !=
2023 	    IBNEX_SUCCESS) {
2024 		IBTF_DPRINTF_L2("ibnex",
2025 		    "\tget_pkey_commsvc_index_portnum: Invalid PortGuid");
2026 		return (NULL);
2027 	}
2028 	srv = strchr(device_name, ',');
2029 	if (srv == 0)
2030 		return (IBNEX_FAILURE);
2031 
2032 	srv++;
2033 	temp = strchr(srv, ',');
2034 	if (temp == 0)
2035 		return (IBNEX_FAILURE);
2036 	temp++;
2037 	*pkey = ibnex_str2hex(srv, (temp - srv - 1), &ret);
2038 	if (ret != IBNEX_SUCCESS)
2039 		return (ret);
2040 
2041 	if (*pkey == 0 && *port_num != 0) {
2042 		service_name = ibnex.ibnex_comm_svc_names;
2043 		ncommsvcs = ibnex.ibnex_num_comm_svcs;
2044 	} else if (*pkey == 0 && *port_num == 0) {
2045 		service_name = ibnex.ibnex_hcasvc_comm_svc_names;
2046 		ncommsvcs = ibnex.ibnex_nhcasvc_comm_svcs;
2047 	} else {
2048 		service_name = ibnex.ibnex_vppa_comm_svc_names;
2049 		ncommsvcs = ibnex.ibnex_nvppa_comm_svcs;
2050 	}
2051 
2052 	for (ii = 0; ii < ncommsvcs; ii++) {
2053 		if (strcmp(service_name[ii], temp) == 0) {
2054 			break;
2055 		}
2056 	}
2057 	if (ii == ncommsvcs)
2058 		return (IBNEX_FAILURE);
2059 
2060 	*index = ii;
2061 	return (IBNEX_SUCCESS);
2062 }
2063 
2064 
2065 /*
2066  * ibnex_devname_to_portnum()
2067  *	Get portguid from device name
2068  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2069  */
2070 static int
2071 ibnex_devname_to_portnum(char *device_name, uint8_t *portnum)
2072 {
2073 	int	ret;
2074 	char	*temp1, *temp2;
2075 
2076 	temp1 = strchr(device_name, '@');
2077 	if (temp1 == NULL) {
2078 		return (IBNEX_FAILURE);
2079 	}
2080 	temp2 = strchr(temp1, ',');
2081 	if (temp2 == NULL)
2082 		return (IBNEX_FAILURE);
2083 	temp1++;
2084 	*portnum = ibnex_str2hex(temp1, (temp2 - temp1), &ret);
2085 	return (ret);
2086 }
2087 
2088 
2089 /*
2090  * ibnex_config_ioc_node()
2091  *	Configures one particular instance of the IOC driver.
2092  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2093  */
2094 static int
2095 ibnex_config_ioc_node(char *device_name, dev_info_t *pdip)
2096 {
2097 	int			ret;
2098 	ib_guid_t		iou_guid, ioc_guid;
2099 	ibdm_ioc_info_t		*ioc_info;
2100 
2101 	IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: Begin");
2102 
2103 	if (ibnex_devname_to_node_n_ioc_guids(
2104 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
2105 		return (IBNEX_FAILURE);
2106 	}
2107 
2108 	ibdm_ibnex_port_settle_wait(0, ibnex_port_settling_time);
2109 
2110 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) ==
2111 	    NULL) {
2112 		ibdm_ibnex_free_ioc_list(ioc_info);
2113 		return (IBNEX_FAILURE);
2114 	}
2115 	mutex_enter(&ibnex.ibnex_mutex);
2116 	ret = ibnex_ioc_config_from_pdip(ioc_info, pdip, 0);
2117 	mutex_exit(&ibnex.ibnex_mutex);
2118 	ibdm_ibnex_free_ioc_list(ioc_info);
2119 	IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: ret %x",
2120 	    ret);
2121 	return (ret);
2122 }
2123 
2124 
2125 /*
2126  * ibnex_devname_to_node_n_ioc_guids()
2127  *	Get node guid and ioc guid from the device name
2128  *	Format of the device node name is:
2129  *		ioc@<IOC GUID>,<IOU GUID>
2130  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2131  */
2132 static int
2133 ibnex_devname_to_node_n_ioc_guids(
2134     char *device_name, ib_guid_t *iou_guid, ib_guid_t *ioc_guid,
2135     char **ioc_guid_strp)
2136 {
2137 	char	*temp1, *temp;
2138 	int	len, ret;
2139 	char	*ioc_guid_str;
2140 
2141 	IBTF_DPRINTF_L4("ibnex", "\tdevname_to_node_n_ioc_guids:"
2142 	    "Device Name %s", device_name);
2143 
2144 	if ((temp = strchr(device_name, '@')) == NULL) {
2145 		return (IBNEX_FAILURE);
2146 	}
2147 	if ((temp1 = strchr(++temp, ',')) == NULL) {
2148 		return (IBNEX_FAILURE);
2149 	}
2150 	*ioc_guid = ibnex_str2hex(temp, (temp1 - temp), &ret);
2151 	if (ret == IBNEX_SUCCESS) {
2152 		if (ioc_guid_strp) {
2153 			ioc_guid_str = *ioc_guid_strp = kmem_zalloc((temp1
2154 			    - temp) + 1, KM_SLEEP);
2155 			(void) strncpy(ioc_guid_str, temp, temp1 - temp + 1);
2156 			ioc_guid_str[temp1 - temp] = '\0';
2157 		}
2158 		len = device_name + strlen(device_name) - ++temp1;
2159 		*iou_guid = ibnex_str2hex(temp1, len, &ret);
2160 	}
2161 	return (ret);
2162 }
2163 
2164 
2165 /*
2166  * ibnex_ioc_initnode()
2167  *	Allocate a pathinfo node for the IOC
2168  *	Initialize the device node
2169  *	Bind driver to the node
2170  *	Update IBnex global data
2171  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY
2172  */
2173 static int
2174 ibnex_ioc_initnode_pdip(ibnex_node_data_t *node_data,
2175     ibdm_ioc_info_t *ioc_info, dev_info_t *pdip)
2176 {
2177 	int			rval, node_valid;
2178 	ibnex_node_state_t	prev_state;
2179 
2180 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2181 	ASSERT(node_data);
2182 
2183 
2184 	/*
2185 	 * Return EBUSY if another configure/unconfigure
2186 	 * operation is in progress
2187 	 */
2188 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2189 		IBTF_DPRINTF_L4("ibnex",
2190 		    "\tioc_initnode_pdip : BUSY");
2191 		return (IBNEX_BUSY);
2192 	}
2193 
2194 	prev_state = node_data->node_state;
2195 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2196 	mutex_exit(&ibnex.ibnex_mutex);
2197 
2198 	rval = ibnex_ioc_create_pi(ioc_info, node_data, pdip, &node_valid);
2199 
2200 	mutex_enter(&ibnex.ibnex_mutex);
2201 	if (rval == IBNEX_SUCCESS)
2202 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2203 	else if (node_valid)
2204 		node_data->node_state = prev_state;
2205 
2206 	return (rval);
2207 }
2208 
2209 /*
2210  * ibnex_config_pseudo_all()
2211  *	Configure all the pseudo nodes
2212  */
2213 static void
2214 ibnex_config_pseudo_all(dev_info_t *pdip)
2215 {
2216 	ibnex_node_data_t	*nodep;
2217 
2218 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2219 
2220 	for (nodep = ibnex.ibnex_pseudo_node_head;
2221 	    nodep; nodep = nodep->node_next) {
2222 		(void) ibnex_pseudo_config_one(nodep, NULL, pdip);
2223 	}
2224 }
2225 
2226 
2227 /*
2228  * ibnex_pseudo_config_one()
2229  */
2230 static int
2231 ibnex_pseudo_config_one(ibnex_node_data_t *node_data, char *caddr,
2232     dev_info_t *pdip)
2233 {
2234 	int			rval;
2235 	ibnex_pseudo_node_t	*pseudo;
2236 	ibnex_node_state_t	prev_state;
2237 
2238 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one(%p, %p, %p)",
2239 	    node_data, caddr, pdip);
2240 
2241 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2242 
2243 	if (node_data == NULL) {
2244 		IBTF_DPRINTF_L4("ibnex",
2245 		    "\tpseudo_config_one: caddr = %s", caddr);
2246 
2247 		/*
2248 		 * This function is now called with PHCI / HCA driver
2249 		 * as parent. The format of devicename is :
2250 		 * 	<driver_name>@<driver_name>,<unit_address>
2251 		 * The "caddr" part of the devicename matches the
2252 		 * format of pseudo_node_addr.
2253 		 *
2254 		 * Use "caddr" to find a matching Pseudo node entry.
2255 		 */
2256 		node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2257 		    (void *)caddr, 0, 0);
2258 	}
2259 
2260 	if (node_data == NULL) {
2261 		IBTF_DPRINTF_L2("ibnex",
2262 		    "\tpseudo_config_one: Invalid node");
2263 		return (IBNEX_FAILURE);
2264 	}
2265 
2266 	if (node_data->node_ap_state == IBNEX_NODE_AP_UNCONFIGURED) {
2267 		IBTF_DPRINTF_L4("ibnex",
2268 		    "\tpseudo_config_one: Unconfigured node");
2269 		return (IBNEX_FAILURE);
2270 	}
2271 
2272 	pseudo = &node_data->node_data.pseudo_node;
2273 
2274 	/*
2275 	 * Do not enumerate nodes with ib-node-type set as "merge"
2276 	 */
2277 	if (pseudo->pseudo_merge_node == 1) {
2278 		IBTF_DPRINTF_L4("ibnex",
2279 		    "\tpseudo_config_one: merge_node");
2280 		return (IBNEX_FAILURE);
2281 	}
2282 
2283 	/*
2284 	 * Check if a PI has already been created for the PDIP.
2285 	 * If so, return SUCCESS.
2286 	 */
2287 	if (node_data->node_dip != NULL && mdi_pi_find(pdip,
2288 	    pseudo->pseudo_node_addr, pseudo->pseudo_node_addr) != NULL) {
2289 		IBTF_DPRINTF_L4("ibnex",
2290 		    "\tpseudo_config_one: PI created,"
2291 		    " pdip %p, addr %s", pdip, pseudo->pseudo_node_addr);
2292 		return (IBNEX_SUCCESS);
2293 	}
2294 
2295 	/*
2296 	 * Return EBUSY if another unconfigure
2297 	 * operation is in progress
2298 	 */
2299 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2300 		IBTF_DPRINTF_L4("ibnex",
2301 		    "\tpseudo_config_one: BUSY");
2302 		return (IBNEX_BUSY);
2303 	}
2304 
2305 
2306 	prev_state = node_data->node_state;
2307 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2308 
2309 	mutex_exit(&ibnex.ibnex_mutex);
2310 	rval = ibnex_pseudo_create_pi_pdip(node_data, pdip);
2311 	mutex_enter(&ibnex.ibnex_mutex);
2312 
2313 	if (rval == IBNEX_SUCCESS) {
2314 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2315 	} else {
2316 		node_data->node_state = prev_state;
2317 	}
2318 
2319 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one: ret %x",
2320 	    rval);
2321 	return (rval);
2322 }
2323 
2324 
2325 /*
2326  * ibnex_pseudo_mdi_config_one()
2327  *	This is similar to ibnex_pseudo_config_one. Few
2328  *	differences :
2329  *	1. parent device lock not held(no ndi_devi_enter)
2330  *	2. Called for IB Nexus as parent, not IB HCA as
2331  *	   parent.
2332  *	3. Calls mdi_vhci_bus_config()
2333  * This function skips checks for node_state, initializing
2334  * node_state, node_dip, etc. These checks and initializations
2335  * are done when BUS_CONFIG is called with PHCI as the parent.
2336  */
2337 static int
2338 ibnex_pseudo_mdi_config_one(int flag, void *devname, dev_info_t **child,
2339     char *cname, char *caddr)
2340 {
2341 	int			rval, len;
2342 	char			*node_addr;
2343 	ibnex_node_data_t	*node_data;
2344 
2345 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_mdi_config_one:"
2346 	    "cname = %s caddr = %s", cname, caddr);
2347 
2348 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2349 
2350 	len = strlen(cname) + strlen(caddr) + 2;
2351 	node_addr = (char *)kmem_alloc(len, KM_SLEEP);
2352 
2353 	(void) snprintf(node_addr, len, "%s,%s", cname, caddr);
2354 	node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2355 	    (void *)node_addr, 0, 0);
2356 	kmem_free(node_addr, len);
2357 
2358 	if (node_data == NULL) {
2359 		IBTF_DPRINTF_L2("ibnex",
2360 		    "\tpseudo_mdi_config_one: Invalid node");
2361 		return (IBNEX_FAILURE);
2362 	}
2363 
2364 	mutex_exit(&ibnex.ibnex_mutex);
2365 	rval = mdi_vhci_bus_config(ibnex.ibnex_dip, flag, BUS_CONFIG_ONE,
2366 	    devname, child, node_data->node_data.pseudo_node.pseudo_node_addr);
2367 	mutex_enter(&ibnex.ibnex_mutex);
2368 
2369 	return (rval);
2370 }
2371 
2372 
2373 /*
2374  * ibnex_pseudo_create_all_pi()
2375  *	Create all path infos node for a pseudo entry
2376  */
2377 int
2378 ibnex_pseudo_create_all_pi(ibnex_node_data_t *nodep)
2379 {
2380 	int		hcacnt, rc;
2381 	int		hcafailcnt = 0;
2382 	dev_info_t	*hca_dip;
2383 	ibdm_hca_list_t	*hca_list, *head;
2384 
2385 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_all_pi(%p)",
2386 	    nodep);
2387 	ibdm_ibnex_get_hca_list(&hca_list, &hcacnt);
2388 
2389 	head = hca_list;
2390 
2391 	/*
2392 	 * We return failure even if we fail for all HCAs.
2393 	 */
2394 	for (; hca_list != NULL; hca_list = hca_list->hl_next) {
2395 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
2396 		rc = ibnex_pseudo_create_pi_pdip(nodep, hca_dip);
2397 		if (rc != IBNEX_SUCCESS)
2398 			hcafailcnt++;
2399 	}
2400 	if (head)
2401 		ibdm_ibnex_free_hca_list(head);
2402 
2403 	if (hcafailcnt == hcacnt)
2404 		rc = IBNEX_FAILURE;
2405 	else
2406 		rc = IBNEX_SUCCESS;
2407 
2408 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_all_pi rc %x",
2409 	    rc);
2410 	return (rc);
2411 }
2412 
2413 static int
2414 ibnex_pseudo_create_pi_pdip(ibnex_node_data_t *nodep, dev_info_t *hca_dip)
2415 {
2416 	mdi_pathinfo_t		*pip;
2417 	int			rval;
2418 	dev_info_t		*cdip = NULL;
2419 	ibnex_pseudo_node_t	*pseudo;
2420 	int			first_pi = 0;
2421 
2422 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_create_pi_pdip: %p, %p",
2423 	    nodep, hca_dip);
2424 
2425 	pseudo = &nodep->node_data.pseudo_node;
2426 
2427 	rval = mdi_pi_alloc(hca_dip,
2428 	    pseudo->pseudo_devi_name, pseudo->pseudo_node_addr,
2429 	    pseudo->pseudo_node_addr, 0, &pip);
2430 
2431 	if (rval != MDI_SUCCESS) {
2432 		IBTF_DPRINTF_L2("ibnex", "\tpseudo_create_pi_pdip:"
2433 		    " mdi_pi_alloc failed");
2434 		return (IBNEX_FAILURE);
2435 	}
2436 	cdip = mdi_pi_get_client(pip);
2437 
2438 	if (nodep->node_dip == NULL) {
2439 		IBTF_DPRINTF_L4("ibnex",
2440 		    "\tpseudo_create_pi: New dip %p", cdip);
2441 
2442 		first_pi = 1;
2443 		nodep->node_dip = cdip;
2444 		ddi_set_parent_data(cdip, nodep);
2445 	}
2446 
2447 	rval = mdi_pi_online(pip, 0);
2448 
2449 	if (rval != MDI_SUCCESS) {
2450 		IBTF_DPRINTF_L2("ibnex",
2451 		    "\tpseudo_create_pi: "
2452 		    "mdi_pi_online: failed for pseudo dip %p,"
2453 		    " rval %d", cdip, rval);
2454 		rval = IBNEX_FAILURE;
2455 		if (first_pi == 1) {
2456 			ddi_set_parent_data(cdip, NULL);
2457 			(void) ibnex_offline_childdip(cdip);
2458 			nodep->node_dip = NULL;
2459 		} else
2460 			(void) mdi_pi_free(pip, 0);
2461 	} else
2462 		rval = IBNEX_SUCCESS;
2463 	return (rval);
2464 }
2465 
2466 /*
2467  * ibnex_ioc_create_pi()
2468  *	Create a pathinfo node for the ioc node
2469  */
2470 static int
2471 ibnex_ioc_create_pi(ibdm_ioc_info_t *ioc_info, ibnex_node_data_t *node_data,
2472     dev_info_t *pdip, int *node_valid)
2473 {
2474 	mdi_pathinfo_t		*pip;
2475 	int			rval = DDI_FAILURE;
2476 	dev_info_t		*cdip = NULL;
2477 	int			create_prop = 0;
2478 	ibnex_ioc_node_t	*ioc = &node_data->node_data.ioc_node;
2479 
2480 	IBTF_DPRINTF_L4("ibnex",
2481 	    "\tibnex_ioc_create_pi(%p, %p, %p)", ioc_info, node_data, pdip);
2482 	*node_valid = 1;
2483 
2484 	/*
2485 	 * For CONFIG_ONE requests through HCA dip, alloc
2486 	 * for HCA dip driving BUS_CONFIG request.
2487 	 */
2488 	rval =  mdi_pi_alloc(pdip, IBNEX_IOC_CNAME, ioc->ioc_guid_str,
2489 	    ioc->ioc_phci_guid, 0, &pip);
2490 	if (rval != MDI_SUCCESS) {
2491 		IBTF_DPRINTF_L2("ibnex",
2492 		    "\tioc_create_pi: mdi_pi_alloc(%p, %s. %s) failed",
2493 		    pdip, ioc->ioc_guid_str, ioc->ioc_phci_guid);
2494 		return (IBNEX_FAILURE);
2495 	}
2496 	cdip = mdi_pi_get_client(pip);
2497 
2498 	IBTF_DPRINTF_L4("ibnex", "\tioc_create_pi: IOC dip %p",
2499 	    cdip);
2500 
2501 	if (node_data->node_dip == NULL) {
2502 		node_data->node_dip = cdip;
2503 		ddi_set_parent_data(cdip, node_data);
2504 		create_prop = 1;
2505 		IBTF_DPRINTF_L4("ibnex",
2506 		    "\tioc_create_pi: creating prop");
2507 		if ((rval = ibnex_create_ioc_node_prop(
2508 		    ioc_info, cdip)) != IBNEX_SUCCESS) {
2509 			IBTF_DPRINTF_L4("ibnex",
2510 			    "\tioc_create_pi: creating prop failed");
2511 			ibnex_delete_ioc_node_data(node_data);
2512 			*node_valid = 0;
2513 			ddi_prop_remove_all(cdip);
2514 			ddi_set_parent_data(cdip, NULL);
2515 
2516 			(void) ibnex_offline_childdip(cdip);
2517 			return (IBNEX_FAILURE);
2518 		}
2519 	}
2520 
2521 	rval = mdi_pi_online(pip, 0);
2522 
2523 	if (rval != MDI_SUCCESS) {
2524 		IBTF_DPRINTF_L2("ibnex", "\tioc_create_pi: "
2525 		    "mdi_pi_online() failed ioc dip %p, rval %d",
2526 		    cdip, rval);
2527 		rval = IBNEX_FAILURE;
2528 		if (create_prop) {
2529 			ddi_set_parent_data(cdip, NULL);
2530 			ddi_prop_remove_all(cdip);
2531 			ibnex_delete_ioc_node_data(node_data);
2532 			*node_valid = 0;
2533 			(void) ibnex_offline_childdip(cdip);
2534 		} else
2535 			(void) mdi_pi_free(pip, 0);
2536 	} else
2537 		rval = IBNEX_SUCCESS;
2538 
2539 	IBTF_DPRINTF_L4("ibnex", "\tioc_create_pi ret %x", rval);
2540 	return (rval);
2541 }
2542 
2543 
2544 /*
2545  * ibnex_create_ioc_node_prop()
2546  *	Create IOC device node properties
2547  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2548  */
2549 static int
2550 ibnex_create_ioc_node_prop(ibdm_ioc_info_t *ioc_info, dev_info_t *cdip)
2551 {
2552 	uint16_t		 capabilities;
2553 	ib_dm_ioc_ctrl_profile_t *ioc_profile = &ioc_info->ioc_profile;
2554 
2555 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_node_prop");
2556 
2557 	if (ibnex_create_ioc_compatible_prop(cdip,
2558 	    ioc_profile) != IBNEX_SUCCESS) {
2559 		return (IBNEX_FAILURE);
2560 	}
2561 	if ((ioc_info->ioc_iou_dc_valid) &&
2562 	    (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "iou-diagcode",
2563 	    ioc_info->ioc_iou_diagcode)) != DDI_PROP_SUCCESS) {
2564 		IBTF_DPRINTF_L2("ibnex",
2565 		    "\tcreate_ioc_node_prop: iou-diagcode create failed");
2566 		return (IBNEX_FAILURE);
2567 	}
2568 	if ((ioc_info->ioc_diagdeviceid) && (ioc_info->ioc_dc_valid)) {
2569 		if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "ioc-diagcode",
2570 		    ioc_info->ioc_diagcode) != DDI_PROP_SUCCESS) {
2571 			IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2572 			    "ioc-diagcode create failed");
2573 			return (IBNEX_FAILURE);
2574 		}
2575 	}
2576 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-queue-depth",
2577 	    ioc_profile->ioc_rdma_read_qdepth) != DDI_PROP_SUCCESS) {
2578 		IBTF_DPRINTF_L2("ibnex",
2579 		    "\tcreate_ioc_node_prop: rdma-queue-depth create failed");
2580 		return (IBNEX_FAILURE);
2581 	}
2582 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-transfer-size",
2583 	    ioc_profile->ioc_rdma_xfer_sz) != DDI_PROP_SUCCESS) {
2584 		IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2585 		    "rdma-transfer-size create failed");
2586 		return (IBNEX_FAILURE);
2587 	}
2588 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-message-size",
2589 	    ioc_profile->ioc_send_msg_sz) != DDI_PROP_SUCCESS) {
2590 		IBTF_DPRINTF_L2("ibnex",
2591 		    "\tcreate_ioc_node_prop: send-message-size create failed");
2592 		return (IBNEX_FAILURE);
2593 	}
2594 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-queue-depth",
2595 	    ioc_profile->ioc_send_msg_qdepth) != DDI_PROP_SUCCESS) {
2596 		IBTF_DPRINTF_L2("ibnex",
2597 		    "\tcreate_ioc_node_prop: send-queue-depth create failed");
2598 		return (IBNEX_FAILURE);
2599 	}
2600 
2601 	capabilities = (ioc_profile->ioc_ctrl_opcap_mask << 8);
2602 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip,
2603 	    "capabilities", capabilities) != DDI_PROP_SUCCESS) {
2604 		IBTF_DPRINTF_L2("ibnex",
2605 		    "\tcreate_ioc_node_prop: capabilities create failed");
2606 		return (IBNEX_FAILURE);
2607 	}
2608 	if (ndi_prop_update_string(DDI_DEV_T_NONE, cdip, "id-string",
2609 	    (char *)ioc_profile->ioc_id_string) != DDI_PROP_SUCCESS) {
2610 		IBTF_DPRINTF_L2("ibnex",
2611 		    "\tcreate_ioc_node_prop: id-string failed");
2612 		return (IBNEX_FAILURE);
2613 	}
2614 
2615 	/*
2616 	 * Create properties to represent all the service entries supported
2617 	 * by the IOC. Each service entry consists of 1) Service ID (64 bits)
2618 	 * and 2) Service name (40 bytes). The service entry table is
2619 	 * represented by two properties, service-ids and service-names. The
2620 	 * service-id property is a array of int64's and service names is
2621 	 * array of strings. The first element in the "service-ids" property
2622 	 * corresponds to first string in the "service-names" and so on.
2623 	 */
2624 	if ((ioc_profile->ioc_service_entries != 0) &&
2625 	    (ibnex_create_ioc_srv_props(cdip, ioc_info) != IBNEX_SUCCESS))
2626 		return (IBNEX_FAILURE);
2627 
2628 	/* Create destination port GID properties */
2629 	if (ibnex_create_ioc_portgid_prop(cdip, ioc_info) != IBNEX_SUCCESS)
2630 		return (IBNEX_FAILURE);
2631 
2632 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol-version",
2633 	    ioc_profile->ioc_protocol_ver) != DDI_PROP_SUCCESS) {
2634 		IBTF_DPRINTF_L2("ibnex",
2635 		    "\tcreate_ioc_node_prop: protocol-version create failed");
2636 		return (IBNEX_FAILURE);
2637 	}
2638 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol",
2639 	    ioc_profile->ioc_protocol) != DDI_PROP_SUCCESS) {
2640 		IBTF_DPRINTF_L2("ibnex",
2641 		    "\tcreate_ioc_node_prop: protocol create failed");
2642 		return (IBNEX_FAILURE);
2643 	}
2644 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-subclass",
2645 	    ioc_profile->ioc_io_subclass) != DDI_PROP_SUCCESS) {
2646 		IBTF_DPRINTF_L2("ibnex",
2647 		    "\tcreate_ioc_node_prop: subclass create failed");
2648 		return (IBNEX_FAILURE);
2649 	}
2650 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-class",
2651 	    ioc_profile->ioc_io_class) != DDI_PROP_SUCCESS) {
2652 		IBTF_DPRINTF_L2("ibnex",
2653 		    "\tcreate_ioc_node_prop: class prop create failed");
2654 		return (IBNEX_FAILURE);
2655 	}
2656 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-id",
2657 	    ioc_profile->ioc_subsys_id) != DDI_PROP_SUCCESS) {
2658 		IBTF_DPRINTF_L2("ibnex",
2659 		    "\tcreate_ioc_node_prop: subsys_id create failed");
2660 		return (IBNEX_FAILURE);
2661 	}
2662 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-vendor-id",
2663 	    ioc_profile->ioc_subsys_vendorid) != DDI_PROP_SUCCESS) {
2664 		IBTF_DPRINTF_L2("ibnex",
2665 		    "\tcreate_ioc_node_prop: subsystem vendor create failed");
2666 		return (IBNEX_FAILURE);
2667 	}
2668 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, cdip, "ioc-guid",
2669 	    ioc_profile->ioc_guid) != DDI_PROP_SUCCESS) {
2670 		IBTF_DPRINTF_L2("ibnex",
2671 		    "\tcreate_ioc_node_prop: protocol create failed");
2672 		return (IBNEX_FAILURE);
2673 	}
2674 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-version",
2675 	    ioc_profile->ioc_device_ver) != DDI_PROP_SUCCESS) {
2676 		IBTF_DPRINTF_L2("ibnex",
2677 		    "\tcreate_ioc_node_prop: product-id create failed");
2678 		return (IBNEX_FAILURE);
2679 	}
2680 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-id",
2681 	    ioc_profile->ioc_deviceid) != DDI_PROP_SUCCESS) {
2682 		IBTF_DPRINTF_L2("ibnex",
2683 		    "\tcreate_ioc_node_prop: product-id create failed");
2684 		return (IBNEX_FAILURE);
2685 	}
2686 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "vendor-id",
2687 	    ioc_profile->ioc_vendorid) != DDI_PROP_SUCCESS) {
2688 		IBTF_DPRINTF_L2("ibnex",
2689 		    "\tcreate_ioc_node_prop: vendor-id create failed");
2690 		return (IBNEX_FAILURE);
2691 	}
2692 	return (IBNEX_SUCCESS);
2693 }
2694 
2695 
2696 /*
2697  * ibnex_create_ioc_portgid_prop()
2698  *	Creates "port-entries", "port-list" properties
2699  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2700  */
2701 static int
2702 ibnex_create_ioc_portgid_prop(
2703     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2704 {
2705 	uint64_t	*port_gids;
2706 	int		length, ii, jj;
2707 	int		prop_len;
2708 	ibnex_node_data_t *node_data;
2709 
2710 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_portgid_prop");
2711 
2712 	node_data = ddi_get_parent_data(cdip);
2713 	ASSERT(node_data);
2714 
2715 	prop_len = (ioc_info->ioc_nportgids != 0) ?
2716 	    (2 * ioc_info->ioc_nportgids) : 1;
2717 	length = sizeof (uint64_t) * prop_len;
2718 	port_gids = kmem_zalloc(length, KM_SLEEP);
2719 
2720 	for (ii = 0, jj = 0; ii < ioc_info->ioc_nportgids; ii++) {
2721 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_hi;
2722 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_lo;
2723 	}
2724 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip, "port-list",
2725 	    (int64_t *)port_gids, prop_len) != DDI_PROP_SUCCESS) {
2726 		IBTF_DPRINTF_L2("ibnex",
2727 		    "\tcreate_ioc_portgid_prop: port-list create failed");
2728 		kmem_free(port_gids, length);
2729 		return (IBNEX_FAILURE);
2730 	}
2731 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "port-entries",
2732 	    ioc_info->ioc_nportgids) != DDI_PROP_SUCCESS) {
2733 		IBTF_DPRINTF_L2("ibnex",
2734 		    "\tcreate_ioc_portgid_prop: port-entries create failed");
2735 		kmem_free(port_gids, length);
2736 		return (IBNEX_FAILURE);
2737 	}
2738 
2739 	kmem_free(port_gids, length);
2740 	return (IBNEX_SUCCESS);
2741 }
2742 
2743 
2744 /*
2745  * ibnex_create_ioc_srv_props()
2746  *	Creates "service-name" and "service-id" properties
2747  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2748  */
2749 static int
2750 ibnex_create_ioc_srv_props(
2751     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2752 {
2753 	int			length, ii;
2754 	uint64_t		*srv_id;
2755 	char			*temp, *srv_names[IB_DM_MAX_IOCS_IN_IOU];
2756 	ib_dm_ioc_ctrl_profile_t *profile = &ioc_info->ioc_profile;
2757 	ibdm_srvents_info_t	 *srvents = ioc_info->ioc_serv;
2758 
2759 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props");
2760 
2761 	length = profile->ioc_service_entries * sizeof (ib_dm_srv_t);
2762 	srv_id = kmem_zalloc(length, KM_SLEEP);
2763 	temp = (char *)((char *)srv_id + (8 * profile->ioc_service_entries));
2764 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2765 		srv_names[ii] = (char *)temp + (ii * IB_DM_MAX_SVC_NAME_LEN);
2766 	}
2767 
2768 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2769 		srv_id[ii] = srvents[ii].se_attr.srv_id;
2770 		bcopy(srvents[ii].se_attr.srv_name,
2771 		    srv_names[ii], (IB_DM_MAX_SVC_NAME_LEN - 1));
2772 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2773 		    "Service Names : %s", srv_names[ii]);
2774 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2775 		    "Service ID : %llX", srv_id[ii]);
2776 	}
2777 
2778 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip,
2779 	    "service-id", (int64_t *)srv_id,
2780 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2781 		IBTF_DPRINTF_L2("ibnex",
2782 		    "\tcreate_ioc_srv_props: service-id create failed");
2783 		kmem_free(srv_id, length);
2784 		return (IBNEX_FAILURE);
2785 	}
2786 
2787 	if (ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2788 	    "service-name", (char **)srv_names,
2789 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2790 		IBTF_DPRINTF_L2("ibnex",
2791 		    "\tcreate_ioc_srv_props: service-name create failed");
2792 		kmem_free(srv_id, length);
2793 		return (IBNEX_FAILURE);
2794 	}
2795 	kmem_free(srv_id, length);
2796 	return (IBNEX_SUCCESS);
2797 }
2798 
2799 
2800 /*
2801  * ibnex_create_ioc_compatible_prop()
2802  *	Creates "compatible" property values
2803  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2804  */
2805 static int
2806 ibnex_create_ioc_compatible_prop(
2807     dev_info_t *cdip, ib_dm_ioc_ctrl_profile_t *ioc_profile)
2808 {
2809 	char		*temp;
2810 	int		rval, ii;
2811 	char		*compatible[IBNEX_MAX_COMPAT_NAMES];
2812 
2813 	/*
2814 	 * Initialize the "compatible" property string as below:
2815 	 * Compatible Strings :
2816 	 *	1. ib.V<vid>P<pid>S<subsys vid>s<subsys id>v<ver>
2817 	 *	2. ib.V<vid>P<pid>S<subsys vid>s<subsys id>
2818 	 *	3. ib.V<vid>P<pid>v<ver>
2819 	 *	4. ib.V<vid>P<pid>
2820 	 *	5. ib.C<Class>c<Subclass>p<protocol>r<protocol ver>
2821 	 *	6. ib.C<Class>c<Subclass>p<protocol>
2822 	 *
2823 	 * Note:
2824 	 *	All leading zeros must be present
2825 	 *	All numeric values must specified in hex without prefix "0x"
2826 	 */
2827 
2828 	temp = kmem_alloc(IBNEX_MAX_COMPAT_PROP_SZ, KM_SLEEP);
2829 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2830 		compatible[ii] = temp + (ii * IBNEX_MAX_COMPAT_LEN);
2831 
2832 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
2833 	    "ib.V%06xP%08xS%06xs%08xv%04x",
2834 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2835 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id,
2836 	    ioc_profile->ioc_device_ver);
2837 
2838 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
2839 	    "ib.V%06xP%08xS%06xs%08x",
2840 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2841 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id);
2842 
2843 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
2844 	    "ib.V%06xP%08xv%04x",
2845 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2846 	    ioc_profile->ioc_device_ver);
2847 
2848 	(void) snprintf(compatible[3], IBNEX_MAX_COMPAT_LEN,
2849 	    "ib.V%06xP%08x",
2850 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid);
2851 
2852 	(void) snprintf(compatible[4], IBNEX_MAX_COMPAT_LEN,
2853 	    "ib.C%04xc%04xp%04xr%04x",
2854 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2855 	    ioc_profile->ioc_protocol, ioc_profile->ioc_protocol_ver);
2856 
2857 	(void) snprintf(compatible[5], IBNEX_MAX_COMPAT_LEN,
2858 	    "ib.C%04xc%04xp%04x",
2859 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2860 	    ioc_profile->ioc_protocol);
2861 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2862 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[ii]);
2863 
2864 	/* Create the compatible property for child cdip */
2865 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2866 	    "compatible", (char **)compatible, IBNEX_MAX_COMPAT_NAMES);
2867 
2868 	if (rval != DDI_PROP_SUCCESS) {
2869 		IBTF_DPRINTF_L2("ibnex", "\tcompatible prop_create failed");
2870 		kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2871 		return (IBNEX_FAILURE);
2872 	}
2873 
2874 	kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2875 	return (IBNEX_SUCCESS);
2876 }
2877 
2878 
2879 static void
2880 ibnex_ioc_node_cleanup()
2881 {
2882 	ibnex_node_data_t *node, *delete;
2883 
2884 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2885 	for (node = ibnex.ibnex_ioc_node_head; node; ) {
2886 		delete = node;
2887 		node = node->node_next;
2888 		mutex_exit(&ibnex.ibnex_mutex);
2889 		ibnex_delete_ioc_node_data(delete);
2890 		mutex_enter(&ibnex.ibnex_mutex);
2891 	}
2892 }
2893 
2894 /*
2895  * ibnex_delete_ioc_node_data()
2896  *	Delete IOC node from the list
2897  */
2898 static void
2899 ibnex_delete_ioc_node_data(ibnex_node_data_t *node)
2900 {
2901 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data:");
2902 
2903 	mutex_enter(&ibnex.ibnex_mutex);
2904 	if ((node->node_next == NULL) && (node->node_prev == NULL)) {
2905 		ASSERT(ibnex.ibnex_ioc_node_head == node);
2906 		ibnex.ibnex_ioc_node_head = NULL;
2907 	} else if (node->node_next == NULL)
2908 		node->node_prev->node_next = NULL;
2909 	else if (node->node_prev == NULL) {
2910 		node->node_next->node_prev = NULL;
2911 		ibnex.ibnex_ioc_node_head = node->node_next;
2912 	} else {
2913 		node->node_prev->node_next = node->node_next;
2914 		node->node_next->node_prev = node->node_prev;
2915 	}
2916 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data: head %p",
2917 	    ibnex.ibnex_ioc_node_head);
2918 	mutex_exit(&ibnex.ibnex_mutex);
2919 	kmem_free(node, sizeof (ibnex_node_data_t));
2920 }
2921 
2922 
2923 /*
2924  * ibnex_dm_callback()
2925  *
2926  *	This routine is registered with the IBDM during IB nexus attach. It
2927  *	is called by the IBDM module when it discovers
2928  *		New HCA port
2929  *		HCA port removal
2930  *		New HCA added
2931  *		HCA removed
2932  */
2933 void
2934 ibnex_dm_callback(void *arg, ibdm_events_t flag)
2935 {
2936 	char	hca_guid[IBNEX_HCAGUID_STRSZ];
2937 	ibdm_ioc_info_t	*ioc_list, *ioc;
2938 	ibnex_node_data_t	*node_data;
2939 
2940 	IBTF_DPRINTF_L4("ibnex", "\tdm_callback: attr %p event %x", arg, flag);
2941 
2942 	switch (flag) {
2943 	case IBDM_EVENT_HCA_ADDED:
2944 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2945 		    (*(longlong_t *)arg));
2946 		/* Create a devctl minor node for the HCA's port  */
2947 		if (ddi_create_minor_node(ibnex.ibnex_dip, hca_guid, S_IFCHR,
2948 		    ddi_get_instance(ibnex.ibnex_dip),
2949 		    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
2950 			IBTF_DPRINTF_L4("ibnex", "\tdm_callback: failed to "
2951 			    "create minor node for port w/ guid %s", hca_guid);
2952 		}
2953 
2954 		break;
2955 
2956 	case IBDM_EVENT_HCA_REMOVED:
2957 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2958 		    (*(longlong_t *)arg));
2959 		ddi_remove_minor_node(ibnex.ibnex_dip, hca_guid);
2960 		break;
2961 
2962 	case IBDM_EVENT_IOC_PROP_UPDATE:
2963 		ioc = ioc_list = (ibdm_ioc_info_t *)arg;
2964 		if (ioc_list == NULL)
2965 			break;
2966 
2967 		mutex_enter(&ibnex.ibnex_mutex);
2968 		while (ioc_list) {
2969 			if ((node_data = ibnex_is_node_data_present(
2970 			    IBNEX_IOC_NODE, ioc_list, 0, 0)) != NULL &&
2971 			    node_data->node_dip != NULL) {
2972 				ibnex_update_prop(node_data, ioc_list);
2973 			}
2974 			ioc_list = ioc_list->ioc_next;
2975 		}
2976 		mutex_exit(&ibnex.ibnex_mutex);
2977 		ibdm_ibnex_free_ioc_list(ioc);
2978 	}
2979 }
2980 
2981 
2982 /*
2983  * ibnex_get_dip_from_guid()
2984  *
2985  *	Searches the linked list of the port nodes and returns the dip for
2986  *	the of the Port / Node guid requested.
2987  *	Returns NULL if not found
2988  */
2989 int
2990 ibnex_get_dip_from_guid(ib_guid_t guid, int index, ib_pkey_t pkey,
2991     dev_info_t **dip)
2992 {
2993 	int			node_index;
2994 	ib_guid_t		node_guid;
2995 	ib_pkey_t		node_pkey;
2996 	ibnex_node_data_t	*node_data;
2997 
2998 	IBTF_DPRINTF_L4("ibnex",
2999 	    "\tget_dip_from_guid: guid = %llX", guid);
3000 
3001 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3002 	/* Search for a matching entry in internal lists */
3003 	node_data = ibnex.ibnex_port_node_head;
3004 	while (node_data) {
3005 		node_guid = node_data->node_data.port_node.port_guid;
3006 		node_index = node_data->node_data.port_node.port_commsvc_idx;
3007 		node_pkey = node_data->node_data.port_node.port_pkey;
3008 		if ((node_guid == guid) && (index == node_index) &&
3009 		    (node_pkey == pkey)) {
3010 			break;
3011 		}
3012 		node_data = node_data->node_next;
3013 	}
3014 
3015 	/* matching found with a valid dip */
3016 	if (node_data && node_data->node_dip) {
3017 		*dip = node_data->node_dip;
3018 		return (IBNEX_SUCCESS);
3019 	} else if (node_data && !node_data->node_dip) {	/* dip is invalid */
3020 		*dip = NULL;
3021 		return (IBNEX_SUCCESS);
3022 	}
3023 
3024 	/* no match found */
3025 	*dip = NULL;
3026 	return (IBNEX_FAILURE);
3027 }
3028 
3029 
3030 /*
3031  * ibnex_comm_svc_init()
3032  *	Read the property and cache the values in the global
3033  *	structure.
3034  *	Check for max allowed length (4 bytes) of service name
3035  *	(each element of the property)
3036  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3037  */
3038 static ibnex_rval_t
3039 ibnex_comm_svc_init(char *property, ibnex_node_type_t type)
3040 {
3041 	int		i, len, count;
3042 	int		ncomm_svcs;
3043 	char		**comm_svcp;
3044 	char		**servicep = NULL;
3045 	uint_t		nservices = 0;
3046 	int			*valid = NULL;
3047 
3048 	IBTF_DPRINTF_L4("ibnex", "\tcomm_svc_init : %s property, type = %x",
3049 	    property, type);
3050 
3051 	/* lookup the string array property */
3052 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, ibnex.ibnex_dip,
3053 	    DDI_PROP_DONTPASS, property, &servicep, &nservices) !=
3054 	    DDI_PROP_SUCCESS) {
3055 		IBTF_DPRINTF_L2("ibnex", "\t%s property undefined", property);
3056 		return (IBNEX_SUCCESS);
3057 	}
3058 
3059 	if (nservices)
3060 		valid = kmem_zalloc(nservices * sizeof (int), KM_SLEEP);
3061 
3062 
3063 	/* first read the file to get a count of valid service entries */
3064 	for (ncomm_svcs = 0, count = 0; count < nservices; count++) {
3065 		int j;
3066 
3067 		len = strlen(servicep[count]);
3068 		/*
3069 		 * ib.conf has NULL strings for port-svc-list &
3070 		 * hca-svc-list, by default. Do not have L2 message
3071 		 * for these.
3072 		 */
3073 		if (len == 1 || len > 4) {
3074 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3075 			    "Service name %s for property %s invalid : "
3076 			    "length %d", servicep[count], property, len);
3077 			continue;
3078 		} else if (len == 0) {
3079 			continue;
3080 		}
3081 		if (ibnex_unique_svcname(servicep[count]) != IBNEX_SUCCESS) {
3082 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3083 			    "Service name %s invalid : Not unique",
3084 			    servicep[count]);
3085 			continue;
3086 		}
3087 
3088 		/*
3089 		 * ibnex_unique_svcname checks for uniqueness in service names
3090 		 * communication services fully initialized. Check uniqueness
3091 		 * in service names currently initialized.
3092 		 */
3093 		for (j = 0; j < count; j++)
3094 			if (valid[j] && strncmp(servicep[count],
3095 			    servicep[j], 4) == 0) {
3096 				IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
3097 				    "Service name %s invalid : Not unique",
3098 				    servicep[count]);
3099 					continue;
3100 			}
3101 
3102 		valid[count] = 1;
3103 		ncomm_svcs++;
3104 	}
3105 
3106 	/* if no valid entries found, bailout */
3107 	if (nservices == 0 || ncomm_svcs == 0) {
3108 		IBTF_DPRINTF_L4("ibnex", "\tNo %s entries found", property);
3109 		ddi_prop_free(servicep); /* free the property */
3110 		if (valid)
3111 			kmem_free(valid, nservices * sizeof (int));
3112 		return (IBNEX_SUCCESS);
3113 	}
3114 
3115 	comm_svcp = kmem_zalloc((ncomm_svcs * sizeof (char *)), KM_SLEEP);
3116 	if (type == IBNEX_PORT_COMMSVC_NODE) {
3117 		ibnex.ibnex_comm_svc_names = comm_svcp;
3118 		ibnex.ibnex_num_comm_svcs = ncomm_svcs;
3119 	} else if (type == IBNEX_VPPA_COMMSVC_NODE) {
3120 		ibnex.ibnex_vppa_comm_svc_names = comm_svcp;
3121 		ibnex.ibnex_nvppa_comm_svcs = ncomm_svcs;
3122 	} else if (type == IBNEX_HCASVC_COMMSVC_NODE) {
3123 		ibnex.ibnex_hcasvc_comm_svc_names = comm_svcp;
3124 		ibnex.ibnex_nhcasvc_comm_svcs = ncomm_svcs;
3125 	}
3126 
3127 	/* copy the services into an array of strings */
3128 	for (i = 0, count = 0; count < nservices; count++) {
3129 		if (valid[count] == 0)	/* Skip invalid ones */
3130 			continue;
3131 		comm_svcp[i] = kmem_alloc(len + 1, KM_SLEEP);
3132 		(void) strcpy(comm_svcp[i], servicep[count]);
3133 		IBTF_DPRINTF_L4("ibnex",
3134 		    "\t\tService [%d]: %s", i, comm_svcp[i]);
3135 		++i;
3136 	}
3137 	ddi_prop_free(servicep);
3138 	kmem_free(valid, nservices * sizeof (int));
3139 	return (IBNEX_SUCCESS);
3140 }
3141 
3142 
3143 /*
3144  * ibnex_comm_svc_fini()
3145  *	Deallocate all the memory allocated for the communication
3146  *	service arrays.
3147  */
3148 static void
3149 ibnex_comm_svc_fini()
3150 {
3151 	int	index;
3152 
3153 	for (index = 0; index < ibnex.ibnex_num_comm_svcs; index++) {
3154 		kmem_free(ibnex.ibnex_comm_svc_names[index],
3155 		    (strlen(ibnex.ibnex_comm_svc_names[index]) + 1));
3156 	}
3157 	if (ibnex.ibnex_comm_svc_names) {
3158 		kmem_free(ibnex.ibnex_comm_svc_names,
3159 		    ibnex.ibnex_num_comm_svcs * sizeof (char *));
3160 	}
3161 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
3162 		kmem_free(ibnex.ibnex_vppa_comm_svc_names[index],
3163 		    strlen(ibnex.ibnex_vppa_comm_svc_names[index]) +1);
3164 	}
3165 	if (ibnex.ibnex_vppa_comm_svc_names) {
3166 		kmem_free(ibnex.ibnex_vppa_comm_svc_names,
3167 		    ibnex.ibnex_nvppa_comm_svcs * sizeof (char *));
3168 	}
3169 	for (index = 0; index < ibnex.ibnex_nhcasvc_comm_svcs; index++) {
3170 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names[index],
3171 		    strlen(ibnex.ibnex_hcasvc_comm_svc_names[index]) +1);
3172 	}
3173 	if (ibnex.ibnex_hcasvc_comm_svc_names) {
3174 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names,
3175 		    ibnex.ibnex_nhcasvc_comm_svcs * sizeof (char *));
3176 	}
3177 	ibnex.ibnex_comm_svc_names = NULL;
3178 	ibnex.ibnex_num_comm_svcs = 0;
3179 	ibnex.ibnex_vppa_comm_svc_names = NULL;
3180 	ibnex.ibnex_nvppa_comm_svcs = 0;
3181 	ibnex.ibnex_hcasvc_comm_svc_names = NULL;
3182 	ibnex.ibnex_nhcasvc_comm_svcs = 0;
3183 }
3184 
3185 
3186 /*
3187  * ibnex_commsvc_initnode()
3188  *	This routine is specific to port/VPPA node creation
3189  *	Creates a device node for the comm service specified by commsvc_index
3190  *	Creates all the device node properties
3191  *	Allocates and initializes the node specific data
3192  *	Binds the device driver of the device node
3193  *	Returns "dev_info_t" of the child node or NULL in case of failure
3194  *	Sets IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY in "rval" to reflect
3195  *	if the operation was successful, failed or was not performed.
3196  */
3197 dev_info_t *
3198 ibnex_commsvc_initnode(dev_info_t *parent, ibdm_port_attr_t *port_attr,
3199     int index, int node_type, ib_pkey_t pkey, int *rval, int flag)
3200 {
3201 	int			ret;
3202 	char			*svcname;
3203 	dev_info_t		*cdip;
3204 	ibnex_node_data_t	*node_data;
3205 	ibnex_port_node_t	*port_node;
3206 	char devname[MAXNAMELEN];
3207 	int 			cdip_allocated = 0;
3208 
3209 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3210 
3211 	*rval = IBNEX_SUCCESS;
3212 
3213 	/*
3214 	 * prevent any races
3215 	 * we have seen this node_data and it has been initialized
3216 	 * Note that node_dip is already NULL if unconfigure is in
3217 	 * progress.
3218 	 */
3219 	node_data = ibnex_is_node_data_present(node_type, (void *)port_attr,
3220 	    index, pkey);
3221 
3222 	/*
3223 	 * If this node has been explicity unconfigured by cfgadm, then it can
3224 	 * be configured back again only by cfgadm configure.
3225 	 */
3226 	if (node_data && (node_data->node_ap_state ==
3227 	    IBNEX_NODE_AP_UNCONFIGURED)) {
3228 		*rval = IBNEX_FAILURE;
3229 		return (NULL);
3230 	}
3231 
3232 	if (node_data && node_data->node_dip) {
3233 		/*
3234 		 * Return NULL if another configure
3235 		 * operation is in progress
3236 		 */
3237 		if (node_data->node_state == IBNEX_CFGADM_CONFIGURING) {
3238 			*rval = IBNEX_BUSY;
3239 			return (NULL);
3240 		} else {
3241 			return (node_data->node_dip);
3242 		}
3243 	} else if (node_data == NULL) {
3244 		/* allocate a new ibnex_node_data_t */
3245 		node_data = ibnex_init_child_nodedata(node_type, port_attr,
3246 		    index, pkey);
3247 		node_data->node_data.port_node.port_pdip = parent;
3248 	}
3249 
3250 	/*
3251 	 * Return NULL if another unconfigure operation is in progress
3252 	 */
3253 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
3254 		*rval = IBNEX_BUSY;
3255 		return (NULL);
3256 	}
3257 
3258 	ASSERT(node_data->node_state != IBNEX_CFGADM_CONFIGURED);
3259 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3260 
3261 	switch (node_type) {
3262 		case IBNEX_VPPA_COMMSVC_NODE :
3263 			svcname = ibnex.ibnex_vppa_comm_svc_names[index];
3264 			port_node = &node_data->node_data.port_node;
3265 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,%x,%s",
3266 			    IBNEX_IBPORT_CNAME, port_node->port_num,
3267 			    port_node->port_pkey, svcname);
3268 			break;
3269 		case IBNEX_HCASVC_COMMSVC_NODE :
3270 			svcname = ibnex.ibnex_hcasvc_comm_svc_names[index];
3271 			port_node = &node_data->node_data.port_node;
3272 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,0,%s",
3273 			    IBNEX_IBPORT_CNAME, port_node->port_num, svcname);
3274 			break;
3275 		case IBNEX_PORT_COMMSVC_NODE :
3276 			svcname = ibnex.ibnex_comm_svc_names[index];
3277 			port_node = &node_data->node_data.port_node;
3278 			(void) snprintf(devname, MAXNAMELEN, "%s@%x,0,%s",
3279 			    IBNEX_IBPORT_CNAME, port_node->port_num, svcname);
3280 			break;
3281 		default :
3282 			IBTF_DPRINTF_L2("ibnex", "\tcommsvc_initnode:"
3283 			    "\tInvalid Node type");
3284 			*rval = IBNEX_FAILURE;
3285 			ibnex_delete_port_node_data(node_data);
3286 			return (NULL);
3287 	}
3288 
3289 	if ((cdip = ndi_devi_findchild(parent, devname)) != NULL) {
3290 		if (i_ddi_devi_attached(cdip)) {
3291 			node_data->node_dip	= cdip;
3292 			node_data->node_data.port_node.port_pdip = parent;
3293 			node_data->node_state = IBNEX_CFGADM_CONFIGURED;
3294 			ddi_set_parent_data(cdip, node_data);
3295 			IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: found "
3296 			    "attached cdip 0x%p for devname %s", cdip, devname);
3297 			return (cdip);
3298 		}
3299 	} else {
3300 		ndi_devi_alloc_sleep(parent,
3301 		    IBNEX_IBPORT_CNAME, (pnode_t)DEVI_SID_NODEID, &cdip);
3302 		cdip_allocated = 1;
3303 	}
3304 
3305 	node_data->node_dip	= cdip;
3306 	ddi_set_parent_data(cdip, node_data);
3307 	mutex_exit(&ibnex.ibnex_mutex);
3308 
3309 
3310 	if (ibnex_create_port_node_prop(port_attr, cdip, svcname, pkey) ==
3311 	    IBNEX_SUCCESS) {
3312 		if (flag == IBNEX_DEVFS_ENUMERATE)
3313 			ret = ndi_devi_bind_driver(cdip, 0);
3314 		else
3315 			ret = ndi_devi_online(cdip, 0);
3316 		if (ret == NDI_SUCCESS) {
3317 			mutex_enter(&ibnex.ibnex_mutex);
3318 			node_data->node_state	= IBNEX_CFGADM_CONFIGURED;
3319 			node_data->node_data.port_node.port_pdip = parent;
3320 			return (cdip);
3321 		}
3322 		IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: BIND/ONLINE "
3323 		    "of cdip 0x%p for devname %s and flag %d failed", cdip,
3324 		    devname, flag);
3325 	}
3326 
3327 	*rval = IBNEX_FAILURE;
3328 	node_data->node_dip = NULL;
3329 	ddi_set_parent_data(cdip, NULL);
3330 	if (cdip_allocated)
3331 		(void) ndi_devi_free(cdip);
3332 	mutex_enter(&ibnex.ibnex_mutex);
3333 	IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: failure exit");
3334 	return (NULL);
3335 }
3336 
3337 
3338 /*
3339  * ibnex_create_port_node_prop()
3340  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3341  */
3342 static int
3343 ibnex_create_port_node_prop(ibdm_port_attr_t *port_attr,
3344     dev_info_t *child_dip, char *srvname, ib_pkey_t pkey)
3345 {
3346 	if (ibnex_create_port_compatible_prop(child_dip,
3347 	    srvname, port_attr) != DDI_PROP_SUCCESS) {
3348 		IBTF_DPRINTF_L2("ibnex",
3349 		    "\tcreate_port_node_prop: compatible update failed");
3350 		return (IBNEX_FAILURE);
3351 	}
3352 	if ((pkey != 0) && (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3353 	    "port-pkey", pkey) != DDI_PROP_SUCCESS)) {
3354 		IBTF_DPRINTF_L2("ibnex",
3355 		    "\tcreate_port_node_prop: port-num update failed");
3356 		return (IBNEX_FAILURE);
3357 	}
3358 
3359 	/*
3360 	 * For HCA_SVC device nodes, port_num will be 0.
3361 	 * Do not create the "port-number" & "port-guid" properties.
3362 	 */
3363 	if (port_attr->pa_port_num != 0) {
3364 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3365 		    "port-number", port_attr->pa_port_num) !=
3366 		    DDI_PROP_SUCCESS) {
3367 			IBTF_DPRINTF_L2("ibnex",
3368 			    "\tcreate_port_node_prop: port-num update failed");
3369 			return (IBNEX_FAILURE);
3370 		}
3371 		if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3372 		    "port-guid", port_attr->pa_port_guid) !=
3373 		    DDI_PROP_SUCCESS) {
3374 			IBTF_DPRINTF_L2("ibnex",
3375 			    "\tcreate_port_node_prop: port-guid update failed");
3376 			return (IBNEX_FAILURE);
3377 		}
3378 	} else {
3379 		ibdm_hca_list_t	*hca_list;
3380 
3381 		/*
3382 		 * HCA_SVC nodes require "num-ports" & "port-guids"
3383 		 * properties.
3384 		 *
3385 		 * To create the num-ports & port-guids attribute :
3386 		 * 1. Get HCA list (ibdm_ibnex_get_hca_info_by_guid)
3387 		 * 2. Form the array of port GUIDs.
3388 		 */
3389 		if ((hca_list = ibdm_ibnex_get_hca_info_by_guid(
3390 		    port_attr->pa_hca_guid)) == NULL) {
3391 			IBTF_DPRINTF_L2("ibnex",
3392 			    "\tcreate_port_node_prop: hca_info_by_guid failed");
3393 			return (IBNEX_FAILURE);
3394 		}
3395 
3396 		if (hca_list->hl_nports != 0) {
3397 			ib_guid_t	*port_guids;
3398 			uint8_t		portnum;
3399 
3400 			ASSERT(hca_list->hl_port_attr != NULL);
3401 
3402 			port_guids = kmem_zalloc(
3403 			    hca_list->hl_nports * sizeof (ib_guid_t),
3404 			    KM_SLEEP);
3405 
3406 			for (portnum = 0; portnum < hca_list->hl_nports;
3407 			    portnum++) {
3408 				port_guids[portnum] = (hca_list->
3409 				    hl_port_attr[portnum]).pa_port_guid;
3410 			}
3411 
3412 			if (ndi_prop_update_int64_array(DDI_DEV_T_NONE,
3413 			    child_dip, "port-guids", (int64_t *)port_guids,
3414 			    hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3415 				IBTF_DPRINTF_L2("ibnex",
3416 				    "\tcreate_port_node_prop: port-guids "
3417 				    "create failed");
3418 				kmem_free(port_guids, hca_list->hl_nports *
3419 				    sizeof (ib_guid_t));
3420 				ibdm_ibnex_free_hca_list(hca_list);
3421 				return (IBNEX_FAILURE);
3422 			}
3423 			kmem_free(port_guids, hca_list->hl_nports *
3424 			    sizeof (ib_guid_t));
3425 		}
3426 
3427 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3428 		    "num-ports", hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3429 			IBTF_DPRINTF_L2("ibnex",
3430 			    "\tcreate_port_node_prop: num-ports update failed");
3431 			ibdm_ibnex_free_hca_list(hca_list);
3432 			return (IBNEX_FAILURE);
3433 		}
3434 		ibdm_ibnex_free_hca_list(hca_list);
3435 	}
3436 
3437 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3438 	    "hca-guid", port_attr->pa_hca_guid) != DDI_PROP_SUCCESS) {
3439 		IBTF_DPRINTF_L2("ibnex",
3440 		    "\tcreate_port_node_prop: hca-guid update failed");
3441 		return (IBNEX_FAILURE);
3442 	}
3443 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3444 	    "product-id", port_attr->pa_productid) != DDI_PROP_SUCCESS) {
3445 		IBTF_DPRINTF_L2("ibnex",
3446 		    "\tcreate_port_node_prop: product-id update failed");
3447 		return (IBNEX_FAILURE);
3448 	}
3449 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3450 	    "vendor-id", port_attr->pa_vendorid) != DDI_PROP_SUCCESS) {
3451 		IBTF_DPRINTF_L2("ibnex",
3452 		    "\tcreate_port_node_prop: vendor-id update failed");
3453 		return (IBNEX_FAILURE);
3454 	}
3455 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip, "device-version",
3456 	    port_attr->pa_dev_version) != DDI_PROP_SUCCESS) {
3457 		IBTF_DPRINTF_L2("ibnex",
3458 		    "\tcreate_port_node_prop: device-version update failed");
3459 		return (IBNEX_FAILURE);
3460 	}
3461 	return (IBNEX_SUCCESS);
3462 }
3463 
3464 
3465 /*
3466  * ibnex_str2int()
3467  *	Utility function that converts a string of length  "len" to
3468  *	integer.
3469  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3470  */
3471 static int
3472 ibnex_str2int(char *c, int len, int *ret)
3473 {
3474 	int intval = 0, ii;
3475 
3476 	IBTF_DPRINTF_L4("ibnex", "\tstr2int: Int string %s..", c);
3477 	*ret = IBNEX_SUCCESS;
3478 	for (ii = 0; ii < len; ii ++) {
3479 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3480 			intval = intval * 10 +c[ii] - '0';
3481 		else {
3482 			IBTF_DPRINTF_L2("ibnex",
3483 			    "\tstr2int: Invalid integer string %s..", c);
3484 			*ret = IBNEX_FAILURE;
3485 			break;
3486 		}
3487 	}
3488 
3489 	return (intval);
3490 }
3491 
3492 
3493 /*
3494  * ibnex_str2hex()
3495  *	Utility functions that converts a string of length  "len" to
3496  *	hex value. Note. This function does not handle strings which
3497  *	string length more than 8 bytes.
3498  *
3499  */
3500 uint64_t
3501 ibnex_str2hex(char *c, int len, int *ret)
3502 {
3503 	uint64_t hex = 0, ii;
3504 
3505 	*ret = IBNEX_SUCCESS;
3506 	for (ii = 0; ii < len; ii ++) {
3507 		hex = (ii == 0) ? hex : (hex << 4);
3508 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3509 			hex |= c[ii] - '0';
3510 		else if ((c[ii] >= 'a') && (c[ii] <= 'f'))
3511 			hex |= c[ii] - 'a' + 10;
3512 		else if ((c[ii] >= 'A') && (c[ii] <= 'F'))
3513 			hex |= c[ii] - 'A' + 10;
3514 		else {
3515 			IBTF_DPRINTF_L2("ibnex",
3516 			    "\tstr2hex: Invalid integer string");
3517 			*ret = IBNEX_FAILURE;
3518 			break;
3519 		}
3520 	}
3521 
3522 	return (hex);
3523 }
3524 
3525 
3526 /*
3527  * ibnex_create_port_compatible_prop()
3528  *	Creates 'Compatibility' property for port / HCA_SVC device nodes
3529  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3530  */
3531 static int
3532 ibnex_create_port_compatible_prop(dev_info_t *child_dip,
3533     char *comm_svcp, ibdm_port_attr_t *port_attr)
3534 {
3535 	int 	rval, i;
3536 	char	*temp;
3537 	char	*compatible[IBNEX_MAX_IBPORT_COMPAT_NAMES];
3538 
3539 	IBTF_DPRINTF_L4("ibnex", "\tcreate_port_compatible_prop: Begin");
3540 	/*
3541 	 * Initialize the "compatible" property string as below:
3542 	 * Compatible Strings :
3543 	 * 1. ib.V<vid>P<pid>v<revision>.<service name>.
3544 	 * 2. ib.V<vid>P<pid>.<service name>.
3545 	 * 3. ib.<service name>
3546 	 * Leading zeros must be present
3547 	 */
3548 	temp = kmem_alloc(IBNEX_MAX_IBPORT_COMPAT_PROP_SZ, KM_SLEEP);
3549 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++) {
3550 		compatible[i] = temp + (i * IBNEX_MAX_COMPAT_LEN);
3551 	}
3552 
3553 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
3554 	    "ib.V%06xP%08xv%04x.%s",
3555 	    port_attr->pa_vendorid, port_attr->pa_productid,
3556 	    port_attr->pa_dev_version, comm_svcp);
3557 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
3558 	    "ib.V%06xP%08x.%s",
3559 	    port_attr->pa_vendorid, port_attr->pa_productid,
3560 	    comm_svcp);
3561 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
3562 	    "ib.%s", comm_svcp);
3563 
3564 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++)
3565 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[i]);
3566 
3567 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, child_dip,
3568 	    "compatible", (char **)compatible, IBNEX_MAX_IBPORT_COMPAT_NAMES);
3569 
3570 	if (rval != DDI_PROP_SUCCESS) {
3571 		kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3572 		return (IBNEX_FAILURE);
3573 	}
3574 	kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3575 	return (IBNEX_SUCCESS);
3576 }
3577 
3578 
3579 /*
3580  * ibnex_delete_port_node_data()
3581  *	Delete the parent private node data from the linked list
3582  *	Deallocate the memory of the port/ioc attributes
3583  *	Deallocate the memory of the node data
3584  */
3585 static void
3586 ibnex_delete_port_node_data(ibnex_node_data_t *node)
3587 {
3588 	if ((node->node_next == NULL) && (node->node_prev == NULL))
3589 		ibnex.ibnex_port_node_head = NULL;
3590 	else if (node->node_next == NULL)
3591 		node->node_prev->node_next = NULL;
3592 	else if (node->node_prev == NULL) {
3593 		node->node_next->node_prev = NULL;
3594 		ibnex.ibnex_port_node_head = node->node_next;
3595 	} else {
3596 		node->node_prev->node_next = node->node_next;
3597 		node->node_next->node_prev = node->node_prev;
3598 	}
3599 	kmem_free(node, sizeof (ibnex_node_data_t));
3600 }
3601 
3602 
3603 /*
3604  * ibnex_is_node_data_present()
3605  *	Checks whether ibnex_node_t is created already
3606  *	Returns ibnex_node_data_t if found, otherwise NULL
3607  */
3608 static ibnex_node_data_t *
3609 ibnex_is_node_data_present(ibnex_node_type_t node_type, void *attr,
3610     int index, ib_pkey_t pkey)
3611 {
3612 	ibnex_node_data_t	*nodep;
3613 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3614 	if (node_type == IBNEX_IOC_NODE) {
3615 		ibdm_ioc_info_t *ioc_infop = (ibdm_ioc_info_t *)attr;
3616 
3617 		for (nodep = ibnex.ibnex_ioc_node_head; nodep != NULL;
3618 		    nodep = nodep->node_next) {
3619 			if (nodep->node_data.ioc_node.ioc_guid ==
3620 			    ioc_infop->ioc_profile.ioc_guid) {
3621 				return (nodep);
3622 			}
3623 		}
3624 
3625 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3626 		for (nodep = ibnex.ibnex_pseudo_node_head; nodep;
3627 		    nodep = nodep->node_next)
3628 			if (strcmp(nodep->node_data.pseudo_node.
3629 			    pseudo_node_addr, (char *)attr) == 0)
3630 				return (nodep);
3631 
3632 	} else {
3633 		ibdm_port_attr_t *pattrp = (ibdm_port_attr_t *)attr;
3634 
3635 		for (nodep = ibnex.ibnex_port_node_head; nodep != NULL;
3636 		    nodep = nodep->node_next) {
3637 			if ((nodep->node_data.port_node.port_guid ==
3638 			    pattrp->pa_port_guid) &&
3639 			    (nodep->node_data.port_node.port_commsvc_idx ==
3640 			    index) &&
3641 			    (nodep->node_data.port_node.port_pkey == pkey)) {
3642 				return (nodep);
3643 			}
3644 		}
3645 	}
3646 	return (NULL);
3647 }
3648 
3649 /*
3650  * ibnex_lookup_unit_address_prop:
3651  *
3652  *	If property with name is found, return its value
3653  *	otherwise return NULL.
3654  */
3655 static char *
3656 ibnex_lookup_named_prop(ddi_prop_t *head, char *name)
3657 {
3658 	ddi_prop_t	*propp;
3659 
3660 	/* Search the list of properties for name */
3661 	for (propp = head; propp != NULL; propp = propp->prop_next)  {
3662 		if (strcmp(propp->prop_name, name) != 0)
3663 			continue;
3664 		/* named property should be valid and have a value */
3665 		if (propp->prop_len <= 1)
3666 			break;
3667 		return ((char *)propp->prop_val);
3668 	}
3669 
3670 	return ((char *)0);
3671 }
3672 
3673 
3674 /*
3675  * ibnex_pseudo_initnodes()
3676  *	This routine is specific to pseudo node information handling
3677  *	Creates a ibnex_node_data_t all pseudo nodes children of ibnex
3678  */
3679 void
3680 ibnex_pseudo_initnodes()
3681 {
3682 	int			pnam_len, len;
3683 	ibnex_node_data_t	*nodep;
3684 	struct hwc_spec		*list, *spec;
3685 	char			*node_addr, *temp, *unit_addr;
3686 	char			*node_type;
3687 
3688 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_initnodes");
3689 
3690 	mutex_enter(&ibnex.ibnex_mutex);
3691 	/*
3692 	 * get a list of all "pseudo" children of "ib".
3693 	 * for these children initialize/allocate an internal
3694 	 * ibnex_node_data_t.
3695 	 */
3696 	list = hwc_get_child_spec(ibnex.ibnex_dip, (major_t)-1);
3697 	for (spec = list; spec != NULL; spec = spec->hwc_next) {
3698 		if (spec->hwc_devi_sys_prop_ptr == NULL)
3699 			continue;
3700 
3701 		/* Check "ib-node-type" property for IOC .conf */
3702 		node_type = ibnex_lookup_named_prop(
3703 		    spec->hwc_devi_sys_prop_ptr, "ib-node-type");
3704 
3705 		/* "unit-address" property should be present */
3706 		temp = ibnex_lookup_named_prop(
3707 		    spec->hwc_devi_sys_prop_ptr, "unit-address");
3708 		if (temp == NULL)
3709 			continue;
3710 
3711 		pnam_len = strlen(spec->hwc_devi_name) + strlen(temp) + 2;
3712 
3713 		node_addr = kmem_zalloc(pnam_len, KM_SLEEP);
3714 
3715 		(void) snprintf(node_addr,
3716 		    pnam_len, "%s,%s", spec->hwc_devi_name, temp);
3717 
3718 		nodep = ibnex_is_node_data_present(
3719 		    IBNEX_PSEUDO_NODE, (void *)node_addr, 0, 0);
3720 
3721 		if (nodep) {
3722 			kmem_free(node_addr, pnam_len);
3723 			continue;
3724 		}
3725 
3726 		nodep = ibnex_init_child_nodedata(IBNEX_PSEUDO_NODE,
3727 		    (void *)spec->hwc_devi_name, 0, 0);
3728 
3729 		nodep->node_data.pseudo_node.pseudo_node_addr = node_addr;
3730 		(void) snprintf(nodep->node_data.
3731 		    pseudo_node.pseudo_node_addr, pnam_len, "%s", node_addr);
3732 
3733 		len = strlen(temp) + 1;
3734 		unit_addr = (char *)kmem_alloc(len, KM_SLEEP);
3735 		nodep->node_data.pseudo_node.pseudo_unit_addr = unit_addr;
3736 		(void) snprintf(unit_addr, len, "%s", temp);
3737 		nodep->node_data.pseudo_node.pseudo_unit_addr_len = len;
3738 
3739 		if (node_type && strcmp(node_type, "merge") == 0)
3740 			nodep->node_data.pseudo_node.pseudo_merge_node = 1;
3741 
3742 		IBTF_DPRINTF_L3("ibnex", "\tpseudo_initnodes: unit addr = %s"
3743 		    " : drv name = %s", unit_addr, spec->hwc_devi_name);
3744 	}
3745 	hwc_free_spec_list(list);
3746 	mutex_exit(&ibnex.ibnex_mutex);
3747 }
3748 
3749 
3750 /*
3751  * ibnex_init_child_nodedata()
3752  *
3753  *	Allocate memory for the parent private data for device node
3754  *	Initializes the parent private child device node data.
3755  *	Returns pointer to the parent private data
3756  */
3757 static ibnex_node_data_t *
3758 ibnex_init_child_nodedata(ibnex_node_type_t node_type, void *attr, int index,
3759     ib_pkey_t pkey)
3760 {
3761 	char			 *devi_name;
3762 	ibdm_ioc_info_t		 *ioc_info;
3763 	ibnex_ioc_node_t	 *ioc_node;
3764 	ibnex_node_data_t	 *node_data;
3765 	ib_dm_ioc_ctrl_profile_t *ioc_profile;
3766 
3767 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3768 
3769 	node_data = kmem_zalloc(sizeof (ibnex_node_data_t), KM_SLEEP);
3770 	node_data->node_ap_state = IBNEX_NODE_AP_CONFIGURED;
3771 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3772 	node_data->node_type	= node_type;
3773 
3774 	if (node_type == IBNEX_IOC_NODE) {
3775 		ioc_info	= (ibdm_ioc_info_t *)attr;
3776 		ioc_profile	= &ioc_info->ioc_profile;
3777 		ioc_node	= &node_data->node_data.ioc_node;
3778 
3779 		ioc_node->iou_guid = ioc_info->ioc_iou_guid;
3780 		ioc_node->ioc_guid = ioc_profile->ioc_guid;
3781 		(void) strncpy(ioc_node->ioc_id_string,
3782 		    (char *)ioc_profile->ioc_id_string,
3783 		    IB_DM_IOC_ID_STRING_LEN);
3784 		ioc_node->ioc_ngids = ioc_info->ioc_nportgids;
3785 
3786 		node_data->node_next = ibnex.ibnex_ioc_node_head;
3787 		node_data->node_prev = NULL;
3788 		if (ibnex.ibnex_ioc_node_head)
3789 			ibnex.ibnex_ioc_node_head->node_prev = node_data;
3790 		ibnex.ibnex_ioc_node_head = node_data;
3791 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3792 		devi_name = (char *)attr;
3793 		node_data->node_data.pseudo_node.pseudo_devi_name =
3794 		    kmem_zalloc(strlen(devi_name) + 1, KM_SLEEP);
3795 		(void) strncpy(node_data->node_data.pseudo_node.
3796 		    pseudo_devi_name, devi_name, strlen(devi_name));
3797 		node_data->node_next = ibnex.ibnex_pseudo_node_head;
3798 		node_data->node_prev = NULL;
3799 		if (ibnex.ibnex_pseudo_node_head)
3800 			ibnex.ibnex_pseudo_node_head->node_prev = node_data;
3801 		ibnex.ibnex_pseudo_node_head = node_data;
3802 	} else {
3803 		node_data->node_data.port_node.port_hcaguid =
3804 		    ((ibdm_port_attr_t *)attr)->pa_hca_guid;
3805 		node_data->node_data.port_node.port_guid =
3806 		    ((ibdm_port_attr_t *)attr)->pa_port_guid;
3807 		node_data->node_data.port_node.port_num =
3808 		    ((ibdm_port_attr_t *)attr)->pa_port_num;
3809 		node_data->node_data.port_node.port_commsvc_idx = index;
3810 		node_data->node_data.port_node.port_pkey = pkey;
3811 
3812 		node_data->node_next = ibnex.ibnex_port_node_head;
3813 		node_data->node_prev = NULL;
3814 		if (ibnex.ibnex_port_node_head)
3815 			ibnex.ibnex_port_node_head->node_prev = node_data;
3816 		ibnex.ibnex_port_node_head = node_data;
3817 	}
3818 	return (node_data);
3819 }
3820 
3821 static int
3822 ibnex_get_eventcookie(dev_info_t *dip, dev_info_t *rdip,
3823     char *eventname, ddi_eventcookie_t *cookie)
3824 {
3825 	int rc;
3826 
3827 
3828 	IBTF_DPRINTF_L4("ibnex", "ibnex_get_eventcookie(%p, %p, %s, 0x%X)",
3829 	    dip, rdip, eventname, cookie);
3830 
3831 	rc = ndi_event_retrieve_cookie(ibnex.ibnex_ndi_event_hdl,
3832 	    rdip, eventname, cookie, NDI_EVENT_NOPASS);
3833 	if (rc == NDI_SUCCESS) {
3834 		mutex_enter(&ibnex.ibnex_mutex);
3835 		ibnex.ibnex_prop_update_evt_cookie = *cookie;
3836 		mutex_exit(&ibnex.ibnex_mutex);
3837 	}
3838 
3839 	return (rc);
3840 }
3841 
3842 static int
3843 ibnex_add_eventcall(dev_info_t *dip, dev_info_t *rdip,
3844     ddi_eventcookie_t cookie, void (*callback)(dev_info_t *dip,
3845     ddi_eventcookie_t cookie, void *arg, void *bus_impldata),
3846     void *arg, ddi_callback_id_t *cb_id)
3847 {
3848 	IBTF_DPRINTF_L4("ibnex",
3849 	    "ibnex_add_eventcall(%p, %p, 0x%X, %p, %p, %p)",
3850 	    dip, rdip, cookie, callback, arg, cb_id);
3851 
3852 	return (ndi_event_add_callback(ibnex.ibnex_ndi_event_hdl,
3853 	    rdip, cookie, callback, arg, NDI_SLEEP, cb_id));
3854 }
3855 
3856 static int
3857 ibnex_remove_eventcall(dev_info_t *dip, ddi_callback_id_t cb_id)
3858 {
3859 	IBTF_DPRINTF_L4("ibnex", "ibnex_remove_eventcall(%p, 0x%X)",
3860 	    dip, cb_id);
3861 
3862 	return (ndi_event_remove_callback(ibnex.ibnex_ndi_event_hdl,
3863 	    cb_id));
3864 }
3865 
3866 static int
3867 ibnex_post_event(dev_info_t *dip, dev_info_t *rdip,
3868     ddi_eventcookie_t cookie, void *bus_impldata)
3869 {
3870 	IBTF_DPRINTF_L4("ibnex", "ibnex_post_event(%p, %p, 0x%X, %p)",
3871 	    dip, rdip, cookie, bus_impldata);
3872 
3873 	return (ndi_event_run_callbacks(ibnex.ibnex_ndi_event_hdl, rdip,
3874 	    cookie, bus_impldata));
3875 }
3876 
3877 /*
3878  * ibnex_reprobe_ioc_dev()
3879  *
3880  * This could be called as a result of ibt_reprobe_dev request or
3881  * cfgadm command. The function is called from a taskq in case of
3882  * ibt_reprobe_dev and from user context for cfgadm command.
3883  *
3884  * This function reprobes the properties for one IOC dip.
3885  *
3886  * node_reprobe_state should be set before calling this function.
3887  */
3888 void
3889 ibnex_reprobe_ioc_dev(void *arg)
3890 {
3891 	dev_info_t	*dip = (dev_info_t *)arg;
3892 	ibnex_node_data_t	*node_data;
3893 	ibnex_ioc_node_t	*ioc_data;
3894 	ibdm_ioc_info_t		*ioc_info;
3895 
3896 	/* ASSERT(NO_LOCKS_HELD); */
3897 	ASSERT(dip != NULL);
3898 
3899 	node_data = ddi_get_parent_data(dip);
3900 	ASSERT(node_data);
3901 
3902 	if (node_data->node_dip == NULL) {
3903 		IBTF_DPRINTF_L4("ibnex", "reprobe for unconfigured dip");
3904 		mutex_enter(&ibnex.ibnex_mutex);
3905 		ibnex_wakeup_reprobe_ioc(node_data, 0);
3906 		mutex_exit(&ibnex.ibnex_mutex);
3907 		return;
3908 	}
3909 	ioc_data = &(node_data->node_data.ioc_node);
3910 
3911 	/* Reprobe the IOC */
3912 	ioc_info = ibdm_ibnex_probe_ioc(ioc_data->iou_guid, ioc_data->ioc_guid,
3913 	    1);
3914 	if (ioc_info == NULL) {
3915 		IBTF_DPRINTF_L2("ibnex", "Null ioc_info from reprobe");
3916 		mutex_enter(&ibnex.ibnex_mutex);
3917 		ibnex_wakeup_reprobe_ioc(node_data, 1);
3918 		mutex_exit(&ibnex.ibnex_mutex);
3919 		return;
3920 	}
3921 
3922 	mutex_enter(&ibnex.ibnex_mutex);
3923 	if (node_data->node_dip)
3924 		ibnex_update_prop(node_data, ioc_info);
3925 	ibnex_wakeup_reprobe_ioc(node_data, 0);
3926 	mutex_exit(&ibnex.ibnex_mutex);
3927 
3928 	ibdm_ibnex_free_ioc_list(ioc_info);
3929 }
3930 
3931 /*
3932  * ibnex_reprobe_all()
3933  *
3934  * This could be called as a result of cfgadm command. The function
3935  * is called from user context.
3936  *
3937  * This function reprobes the properties for all IOC dips.
3938  *
3939  * ibnex_reprobe_state should be set before calling this function.
3940  */
3941 void
3942 ibnex_reprobe_ioc_all()
3943 {
3944 	ibnex_node_data_t	*node_data;
3945 	ibdm_ioc_info_t		*ioc_info_list, *ioc;
3946 
3947 	/* ASSERT(NO_LOCKS_HELD); */
3948 
3949 	/* Sweep the fabric */
3950 	ioc = ioc_info_list = ibdm_ibnex_get_ioc_list(
3951 	    IBDM_IBNEX_REPROBE_ALL);
3952 	if (ioc_info_list == NULL) {
3953 		mutex_enter(&ibnex.ibnex_mutex);
3954 		ibnex_wakeup_reprobe_all();
3955 		mutex_exit(&ibnex.ibnex_mutex);
3956 		return;
3957 	}
3958 
3959 	mutex_enter(&ibnex.ibnex_mutex);
3960 	while (ioc_info_list) {
3961 		if ((node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
3962 		    ioc_info_list, 0, 0)) != NULL &&
3963 		    node_data->node_dip != NULL) {
3964 			ibnex_update_prop(node_data, ioc_info_list);
3965 		}
3966 		ioc_info_list = ioc_info_list->ioc_next;
3967 	}
3968 	ibnex_wakeup_reprobe_all();
3969 	mutex_exit(&ibnex.ibnex_mutex);
3970 
3971 	ibdm_ibnex_free_ioc_list(ioc);
3972 }
3973 
3974 /*
3975  * Update the properties, if it has modified and notify IBTF client.
3976  */
3977 static void
3978 ibnex_update_prop(ibnex_node_data_t *node_data, ibdm_ioc_info_t *ioc_info)
3979 {
3980 	ibt_prop_update_payload_t	evt_data;
3981 	dev_info_t	*dip = node_data->node_dip;
3982 	ddi_eventcookie_t	evt_cookie;
3983 	ibnex_ioc_node_t *ioc;
3984 
3985 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3986 
3987 	ASSERT(dip != NULL);
3988 
3989 	ioc = &node_data->node_data.ioc_node;
3990 
3991 	evt_data = ioc_info->ioc_info_updated;
3992 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
3993 
3994 	/*
3995 	 * For a disconnected IOC :
3996 	 *	Store the ioc_profile for supplying cfgadm info
3997 	 *	ibdm maintains no info of disconnected IOC
3998 	 *
3999 	 * For reconnected IOC :
4000 	 *	ibdm has info of previous service entries
4001 	 *	ioc_profile maintained by ibnexus is used to
4002 	 *	update ib_srv_prop_updated.
4003 	 *	Free the ibnex maintained ioc_profile
4004 	 */
4005 	if (ioc_info->ioc_nportgids == 0) {
4006 		IBTF_DPRINTF_L4("ibnex",
4007 		    "\tupdate_prop:  IOC disconnected");
4008 		ioc->ioc_profile = (ib_dm_ioc_ctrl_profile_t *)kmem_zalloc(
4009 		    sizeof (ib_dm_ioc_ctrl_profile_t), KM_SLEEP);
4010 		bcopy(&ioc_info->ioc_profile, ioc->ioc_profile,
4011 		    sizeof (ib_dm_ioc_ctrl_profile_t));
4012 
4013 		ibnex.ibnex_num_disconnect_iocs++;
4014 	} else if (ioc_info->ioc_nportgids != 0 && ioc->ioc_ngids == 0 &&
4015 	    ioc->ioc_profile != NULL) {
4016 		IBTF_DPRINTF_L4("ibnex",
4017 		    "\tupdate_prop: IOC reconnected");
4018 		if (ioc->ioc_profile->ioc_service_entries !=
4019 		    ioc_info->ioc_profile.ioc_service_entries)
4020 			evt_data.ib_srv_prop_updated = 1;
4021 
4022 		ibnex.ibnex_num_disconnect_iocs--;
4023 		kmem_free(ioc->ioc_profile, sizeof (ib_dm_ioc_ctrl_profile_t));
4024 		ioc->ioc_profile = NULL;
4025 	}
4026 
4027 	/* Update the properties that have changed */
4028 	mutex_exit(&ibnex.ibnex_mutex);
4029 	if (evt_data.ib_gid_prop_updated) {
4030 		if (ibnex_create_ioc_portgid_prop(dip, ioc_info) !=
4031 		    IBNEX_SUCCESS) {
4032 			mutex_enter(&ibnex.ibnex_mutex);
4033 			return;
4034 		}
4035 	}
4036 	if (evt_data.ib_srv_prop_updated) {
4037 		if (ioc_info->ioc_profile.ioc_service_entries != 0 &&
4038 		    (ibnex_create_ioc_srv_props(dip, ioc_info) !=
4039 		    IBNEX_SUCCESS)) {
4040 			mutex_enter(&ibnex.ibnex_mutex);
4041 			return;
4042 		} else if (ioc_info->ioc_profile.ioc_service_entries == 0) {
4043 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
4044 			    "service-id");
4045 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
4046 			    "service-name");
4047 		}
4048 	}
4049 	mutex_enter(&ibnex.ibnex_mutex);
4050 	ioc->ioc_ngids = ioc_info->ioc_nportgids;
4051 
4052 	/*
4053 	 * Post an event if :
4054 	 *	1. Properites have changed or NOTIFY_ALWAYS is set.
4055 	 *	2. child dip is configured and a valid cookie for
4056 	 *	   IB_PROP_UPDATE_EVENT.
4057 	 */
4058 	if ((evt_data.ib_prop_updated != 0 ||
4059 	    (node_data->node_reprobe_state &
4060 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)) &&
4061 	    ((node_data->node_state == IBNEX_CFGADM_CONFIGURED) &&
4062 	    (evt_cookie != NULL))) {
4063 			mutex_exit(&ibnex.ibnex_mutex);
4064 
4065 			if (ndi_post_event(ibnex.ibnex_dip, dip,
4066 			    evt_cookie, &evt_data) != NDI_SUCCESS)
4067 				IBTF_DPRINTF_L2("ibnex",
4068 				    "\tndi_post_event failed\n");
4069 
4070 			mutex_enter(&ibnex.ibnex_mutex);
4071 	}
4072 
4073 	/*
4074 	 * Cleanup node_reprobe_state, for ibt_reprobe_dev
4075 	 * requests, when reprobe all / node reprobe is in
4076 	 * progress. ibnex_reprobe_ioc_dev is not called
4077 	 * in this case.
4078 	 */
4079 	if (node_data->node_reprobe_state ==
4080 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)
4081 		ibnex_wakeup_reprobe_ioc(node_data, 0);
4082 }
4083 
4084 static ibnex_rval_t
4085 ibnex_unique_svcname(char *svcname)
4086 {
4087 	int i;
4088 
4089 	/* Check Port Services */
4090 	for (i = 0; i < ibnex.ibnex_num_comm_svcs; i++)
4091 		if (ibnex.ibnex_comm_svc_names[i] && strncmp(svcname,
4092 		    ibnex.ibnex_comm_svc_names[i], 4) == 0)
4093 			return (IBNEX_FAILURE);
4094 
4095 	/* Check VPPA Services */
4096 	for (i = 0; i < ibnex.ibnex_nvppa_comm_svcs; i++)
4097 		if (ibnex.ibnex_vppa_comm_svc_names[i] && strncmp(svcname,
4098 		    ibnex.ibnex_vppa_comm_svc_names[i], 4) == 0)
4099 			return (IBNEX_FAILURE);
4100 
4101 	/* Check HCA_SVC Services */
4102 	for (i = 0; i < ibnex.ibnex_nhcasvc_comm_svcs; i++)
4103 		if (ibnex.ibnex_hcasvc_comm_svc_names[i] && strncmp(svcname,
4104 		    ibnex.ibnex_hcasvc_comm_svc_names[i], 4) == 0)
4105 			return (IBNEX_FAILURE);
4106 
4107 	return (IBNEX_SUCCESS);
4108 }
4109 
4110 static void
4111 ibnex_handle_reprobe_dev(void *arg)
4112 {
4113 	dev_info_t	*dip = (dev_info_t *)arg;
4114 	ibnex_node_data_t	*node_data;
4115 
4116 	ASSERT(dip != NULL);
4117 	node_data = ddi_get_parent_data(dip);
4118 	ASSERT(node_data);
4119 
4120 	/*
4121 	 * Return success if:
4122 	 *	1. Reprobe for all nodes are in progress
4123 	 *	2. Reprobe for this node is in progress.
4124 	 * The reprobe in progress will complete eventually and
4125 	 * update the properties, if required.
4126 	 */
4127 	mutex_enter(&ibnex.ibnex_mutex);
4128 	if (ibnex.ibnex_reprobe_state != 0 ||
4129 	    node_data->node_reprobe_state != 0) {
4130 		/*
4131 		 * Setting NOTIFY_ALWAYS to ensure that
4132 		 * DDI event is delivered always for
4133 		 * ibt_reprobe_dev
4134 		 */
4135 		node_data->node_reprobe_state |=
4136 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
4137 		mutex_exit(&ibnex.ibnex_mutex);
4138 		return;
4139 	}
4140 	node_data->node_reprobe_state =
4141 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
4142 	mutex_exit(&ibnex.ibnex_mutex);
4143 	ibnex_reprobe_ioc_dev(arg);
4144 }
4145 
4146 
4147 /*
4148  * MPxIO pathmangement routines. Currently IB nexus does not support
4149  * any kind of pathmangement. So, just return success to make MPxIO
4150  * framework happy.
4151  */
4152 /*ARGSUSED*/
4153 static int
4154 ib_vhci_pi_init(dev_info_t *vdip, mdi_pathinfo_t *pip, int flag)
4155 {
4156 	IBTF_DPRINTF_L4("ibnex", "\tpi_init: dip %p pip %p", vdip, pip);
4157 	return (MDI_SUCCESS);
4158 }
4159 
4160 
4161 /*ARGSUSED*/
4162 static int
4163 ib_vhci_pi_uninit(dev_info_t *vdip, mdi_pathinfo_t *pip, int flag)
4164 {
4165 	dev_info_t *cdip;
4166 	ibnex_node_data_t *node_data;
4167 	int clnt_num_pi;
4168 	IBTF_DPRINTF_L4("ibnex", "\tpi_uninit: dip %p pip %p", vdip, pip);
4169 
4170 	if (pip == NULL)
4171 		return (MDI_FAILURE);
4172 	/*
4173 	 * Get the Client dev_info from the pathinfo.
4174 	 */
4175 	cdip = mdi_pi_get_client(pip);
4176 	if (cdip == NULL)
4177 		return (MDI_FAILURE);
4178 
4179 	/*
4180 	 * How many PIs do we have from this cdip ?
4181 	 */
4182 	clnt_num_pi = mdi_client_get_path_count(cdip);
4183 
4184 	/*
4185 	 * If this is the last PI that is being free'd ( called from
4186 	 * mdi_pi_free) we have to clean up the node data for the cdip since
4187 	 * the client would have been detached by mdi_devi_offline.
4188 	 */
4189 	if (clnt_num_pi == 1) {
4190 		for (node_data = ibnex.ibnex_ioc_node_head;
4191 		    node_data; node_data = node_data->node_next) {
4192 			if (node_data->node_dip == cdip) {
4193 				node_data->node_dip = NULL;
4194 				node_data->node_state =
4195 				    IBNEX_CFGADM_UNCONFIGURED;
4196 				return (MDI_SUCCESS);
4197 			}
4198 		}
4199 		for (node_data = ibnex.ibnex_pseudo_node_head;
4200 		    node_data; node_data = node_data->node_next) {
4201 			if (node_data->node_dip == cdip) {
4202 				node_data->node_dip = NULL;
4203 				node_data->node_state =
4204 				    IBNEX_CFGADM_UNCONFIGURED;
4205 				return (MDI_SUCCESS);
4206 			}
4207 		}
4208 	}
4209 	return (MDI_SUCCESS);
4210 }
4211 
4212 
4213 /*ARGSUSED*/
4214 static int
4215 ib_vhci_pi_state_change(dev_info_t *vdip, mdi_pathinfo_t *pip,
4216 		mdi_pathinfo_state_t state, uint32_t arg1, int arg2)
4217 {
4218 	IBTF_DPRINTF_L4("ibnex",
4219 	    "\tpi_state_change: dip %p pip %p state %x", vdip, pip, state);
4220 	return (MDI_SUCCESS);
4221 }
4222 
4223 
4224 /*ARGSUSED*/
4225 static int
4226 ib_vhci_failover(dev_info_t *dip1, dev_info_t *dip2, int arg)
4227 {
4228 	return (MDI_SUCCESS);
4229 }
4230 
4231 
4232 static int
4233 ibnex_bus_power(dev_info_t *parent, void *impl_arg,
4234     pm_bus_power_op_t op, void *arg, void *result)
4235 {
4236 
4237 	int ret = DDI_SUCCESS;
4238 
4239 	IBTF_DPRINTF_L4("ibnex", "\tbus_power: begin: op = %d", op);
4240 
4241 	/*
4242 	 * Generic processing in MPxIO framework
4243 	 */
4244 	ret = mdi_bus_power(parent, impl_arg, op, arg, result);
4245 
4246 	switch (ret) {
4247 	case MDI_SUCCESS:
4248 		ret = DDI_SUCCESS;
4249 		break;
4250 	case MDI_FAILURE:
4251 		ret = DDI_FAILURE;
4252 		break;
4253 	default:
4254 		break;
4255 	}
4256 
4257 	return (ret);
4258 }
4259 
4260 
4261 /*
4262  * If enumerated as a child of IB Nexus / VHCI, call mdi_vhci_bus_config.
4263  * ndi_devi_enter is not held during this call. mdi_vhci_bus_config()
4264  * will have called ndi_busop_bus_config(), no need for the caller to call
4265  * ndi_busop_bus_config() again.
4266  *
4267  * If enumerated as a child of HCA device, this could be a case for
4268  * Sparc boot or device enumeration from PHCI, driven by MDI.
4269  * Hold parent lock (ndi_devi_enter). The caller will have to call
4270  * ndi_busop_bus_config() if this function returns SUCCESS.
4271  *
4272  * if the device name contains ":port", then it is the Sparc boot case.
4273  * Handle this as before.
4274  *
4275  * If the device name does *not* contain the ":port", then :
4276  *	1. ibdm to probe IOC
4277  *	2. Create a pathinfo only if the IOC is reachable from the parent dip.
4278  */
4279 static int
4280 ibnex_ioc_bus_config_one(dev_info_t **pdipp, uint_t flag,
4281     ddi_bus_config_op_t op, void *devname, dev_info_t **child,
4282     int *need_bus_config)
4283 {
4284 	int ret = DDI_FAILURE, circ;
4285 	dev_info_t *pdip = *pdipp;
4286 	ib_guid_t	iou_guid, ioc_guid;
4287 	char *ioc_guid_str;
4288 
4289 
4290 	*need_bus_config = 1;
4291 
4292 	if (pdip == ibnex.ibnex_dip) {
4293 		if (ibnex_devname_to_node_n_ioc_guids(
4294 		    (char *)devname, &iou_guid, &ioc_guid,
4295 		    &ioc_guid_str) != IBNEX_SUCCESS) {
4296 			return (ret);
4297 		}
4298 		ret = mdi_vhci_bus_config(pdip, flag, op, devname, child,
4299 		    ioc_guid_str);
4300 		kmem_free(ioc_guid_str, strlen(ioc_guid_str) + 1);
4301 		if (ret == MDI_SUCCESS)
4302 			*need_bus_config = 0;
4303 	} else {
4304 		mdi_devi_enter(pdip, &circ);
4305 		if (strstr((char *)devname, ":port=") != NULL) {
4306 			ret = ibnex_config_root_iocnode(pdip, devname);
4307 			ASSERT(ibnex.ibnex_dip == NULL);
4308 			*pdipp = ibnex.ibnex_dip;
4309 		} else {
4310 			ret = ibnex_config_ioc_node(devname, pdip);
4311 		}
4312 		mdi_devi_exit(pdip, circ);
4313 	}
4314 	return (ret);
4315 }
4316 
4317 static int
4318 ibnex_is_merge_node(dev_info_t *child)
4319 {
4320 	char	*node;
4321 	int	ret = IBNEX_INVALID_NODE;
4322 
4323 	if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child,
4324 	    DDI_PROP_DONTPASS, "ib-node-type", &node) !=
4325 	    DDI_PROP_SUCCESS) {
4326 		return (IBNEX_FAILURE);
4327 	}
4328 
4329 	if (node != NULL && *node != 0) {
4330 		if (strcmp(node, "merge") == 0)
4331 			ret = IBNEX_SUCCESS;
4332 		else {
4333 			IBTF_DPRINTF_L4("ibnex",
4334 			    "\tis_merge_node: ib-node-type = %s", node);
4335 		}
4336 	}
4337 
4338 	ddi_prop_free(node);
4339 	return (ret);
4340 }
4341 
4342 /*
4343  * Checks if the dn_head for the driver has already
4344  * initialized by the prom tree.
4345  */
4346 void
4347 ibnex_hw_in_dev_tree(char *driver_name)
4348 {
4349 	major_t	major;
4350 
4351 	IBTF_DPRINTF_L4("ibnex", "\thw_in_dev_tree(%s)", driver_name);
4352 
4353 	if (devnamesp == NULL)
4354 		return;
4355 
4356 	major = ddi_name_to_major(driver_name);
4357 	if (major == -1)
4358 		return;
4359 
4360 	if (devnamesp[major].dn_head != (dev_info_t *)NULL)
4361 		ibnex_hw_status = IBNEX_HW_IN_DEVTREE;
4362 }
4363 
4364 int
4365 ibnex_ioc_initnode_all_pi(ibdm_ioc_info_t *ioc_info)
4366 {
4367 	ibdm_hca_list_t	*hca_list;
4368 	dev_info_t	*hca_dip;
4369 	int	rc = IBNEX_FAILURE;
4370 
4371 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
4372 	/*
4373 	 * We return failure even if we fail for all HCAs
4374 	 */
4375 	for (hca_list = ioc_info->ioc_hca_list; hca_list;
4376 	    hca_list = hca_list->hl_next) {
4377 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
4378 		if (ibnex_ioc_config_from_pdip(ioc_info, hca_dip, 1) ==
4379 		    IBNEX_SUCCESS)
4380 			rc = IBNEX_SUCCESS;
4381 	}
4382 	return (rc);
4383 }
4384 
4385 static int
4386 ibnex_ioc_config_from_pdip(ibdm_ioc_info_t *ioc_info, dev_info_t *pdip,
4387     int pdip_reachable_checked)
4388 {
4389 	ibnex_node_data_t	*node_data;
4390 	int			create_pdip = 0;
4391 	int			rc = IBNEX_SUCCESS;
4392 
4393 
4394 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
4395 	IBTF_DPRINTF_L4("ibnex",
4396 	    "/tioc_config_from_pdip(%p, %p, %d)", ioc_info, pdip,
4397 	    pdip_reachable_checked);
4398 
4399 	if (pdip_reachable_checked == 0) {
4400 		if (ibnex_ioc_pi_reachable(ioc_info, pdip) == IBNEX_FAILURE) {
4401 			IBTF_DPRINTF_L4("ibnex",
4402 			    "/tioc_config_from_pdip: ioc %p not reachable"
4403 			    "from %p", ioc_info, pdip);
4404 			return (IBNEX_FAILURE);
4405 		}
4406 	}
4407 
4408 	node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
4409 	    (void *)ioc_info, 0, 0);
4410 
4411 	if (node_data && node_data->node_ap_state ==
4412 	    IBNEX_NODE_AP_UNCONFIGURED) {
4413 		IBTF_DPRINTF_L4("ibnex",
4414 		    "\tioc_config_from_pdip: Unconfigured node");
4415 		return (IBNEX_FAILURE);
4416 	}
4417 
4418 
4419 	if (node_data == NULL) {
4420 		ibnex_ioc_node_t	*ioc;
4421 
4422 		create_pdip = 1;
4423 
4424 		node_data = ibnex_init_child_nodedata(IBNEX_IOC_NODE,
4425 		    ioc_info, 0, 0);
4426 		ASSERT(node_data);
4427 		ioc = &node_data->node_data.ioc_node;
4428 		(void) snprintf(ioc->ioc_guid_str, IBNEX_IOC_GUID_LEN,
4429 		    "%llX",
4430 		    (longlong_t)ioc_info->ioc_profile.ioc_guid);
4431 		(void) snprintf(ioc->ioc_phci_guid, IBNEX_PHCI_GUID_LEN,
4432 		    "%llX,%llX",
4433 		    (longlong_t)ioc_info->ioc_profile.ioc_guid,
4434 		    (longlong_t)ioc_info->ioc_iou_guid);
4435 	} else if (ibnex_ioc_pi_exists(node_data, pdip) == IBNEX_FAILURE) {
4436 		create_pdip = 1;
4437 	}
4438 
4439 	if (create_pdip) {
4440 		rc = ibnex_ioc_initnode_pdip(node_data, ioc_info, pdip);
4441 	}
4442 
4443 	IBTF_DPRINTF_L4("ibnex", "\tioc_config_from_pdip ret %x",
4444 	    rc);
4445 	return (rc);
4446 }
4447 
4448 /*
4449  * This function checks if a pathinfo has already been created
4450  * for the HCA parent. The function returns SUCCESS if a pathinfo
4451  * has already been created, FAILURE if not.
4452  */
4453 static int
4454 ibnex_ioc_pi_exists(ibnex_node_data_t *node_data, dev_info_t *parent)
4455 {
4456 	int	rc;
4457 	ibnex_ioc_node_t	*ioc;
4458 
4459 	ioc = &node_data->node_data.ioc_node;
4460 	if (mdi_pi_find(parent, (char *)ioc->ioc_guid_str,
4461 	    (char *)ioc->ioc_phci_guid) != NULL)
4462 		rc = IBNEX_SUCCESS;
4463 	else
4464 		rc = IBNEX_FAILURE;
4465 
4466 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_created- client_guid %s, "
4467 	    "phci_guid %s, parent %p, rc %x",
4468 	    ioc->ioc_guid_str, ioc->ioc_phci_guid, parent, rc);
4469 	return (rc);
4470 }
4471 
4472 static int
4473 ibnex_ioc_pi_reachable(ibdm_ioc_info_t *ioc_info, dev_info_t *pdip)
4474 {
4475 	ibdm_hca_list_t	*hca_list;
4476 	dev_info_t	*hca_dip;
4477 
4478 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_reachable(%p, %p)",
4479 	    ioc_info, pdip);
4480 	for (hca_list = ioc_info->ioc_hca_list; hca_list;
4481 	    hca_list = hca_list->hl_next) {
4482 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
4483 		if (hca_dip == pdip) {
4484 			IBTF_DPRINTF_L4("ibnex",
4485 			    "\tioc_pi_reachable FAILURE");
4486 			return (IBNEX_SUCCESS);
4487 		}
4488 	}
4489 
4490 	IBTF_DPRINTF_L4("ibnex", "\tioc_pi_reachable FAILURE");
4491 	return (IBNEX_FAILURE);
4492 }
4493