xref: /illumos-gate/usr/src/uts/common/io/ib/ibnex/ibnex.c (revision 05fa0d51e3dcc60bf87a28d2fd544362e368a474)
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 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 /*
27  * The InfiniBand  Nexus driver (IB nexus) is a bus nexus driver for IB bus.
28  * It supports  Port nodes, Virtual Physical Point of Attachment nodes (VPPA)
29  * for  HCAs registered with IBTL and IOC nodes for all the IOCs present in
30  * the IB fabric (that are accessible to the host). It also supports Pseudo
31  * device children to be enumerated using their .conf file(s). All Port nodes
32  * and VPPA nodes are children of HCA drivers. All the IOC nodes and the Pseudo
33  * device nodes are children of the IB nexus driver.
34  *
35  * IB nexus driver provides bus nexus entry points to all the HCA drivers.
36  *
37  * IB nexus  driver registers with  InfiniBand Device  Manager (IBDM) to get
38  * information about all the HCA ports and  I/O Controllers (IOCs) connected
39  * to the IB fabric. Based on that information, IB nexus will create all the
40  * device tree nodes.
41  */
42 
43 #pragma ident	"%Z%%M%	%I%	%E% SMI"
44 
45 
46 #include <sys/conf.h>
47 #include <sys/stat.h>
48 #include <sys/modctl.h>
49 #include <sys/taskq.h>
50 #include <sys/mdi_impldefs.h>
51 #include <sys/sunmdi.h>
52 #include <sys/sunpm.h>
53 #include <sys/ib/mgt/ibdm/ibdm_impl.h>
54 #include <sys/ib/ibnex/ibnex.h>
55 #include <sys/ib/ibnex/ibnex_devctl.h>
56 #include <sys/ib/ibtl/ibti.h>
57 #include <sys/ib/ibtl/impl/ibtl_ibnex.h>
58 #include <sys/file.h>
59 #include <sys/hwconf.h>
60 
61 /* Function prototypes */
62 static int		ibnex_attach(dev_info_t *, ddi_attach_cmd_t);
63 static int		ibnex_getinfo(dev_info_t *, ddi_info_cmd_t,
64 			    void *, void **);
65 static int		ibnex_detach(dev_info_t *, ddi_detach_cmd_t);
66 static int		ibnex_busctl(dev_info_t *,
67 			    dev_info_t *, ddi_ctl_enum_t, void *, void *);
68 static int		ibnex_map_fault(dev_info_t *,
69 			    dev_info_t *, struct hat *, struct seg *,
70 			    caddr_t, struct devpage *, pfn_t, uint_t, uint_t);
71 static int		ibnex_init_child(dev_info_t *);
72 static ibnex_rval_t	ibnex_comm_svc_init(char *, ibnex_node_type_t);
73 static void		ibnex_comm_svc_fini();
74 dev_info_t		*ibnex_commsvc_initnode(dev_info_t *,
75 			    ibdm_port_attr_t *, int, int, ib_pkey_t, int *,
76 			    int);
77 static void		ibnex_delete_port_node_data(ibnex_node_data_t *);
78 int			ibnex_get_dip_from_guid(ib_guid_t, int,
79 			    ib_pkey_t, dev_info_t **);
80 static ibnex_node_data_t *ibnex_is_node_data_present(ibnex_node_type_t,
81 			    void *, int, ib_pkey_t);
82 static ibnex_node_data_t *ibnex_init_child_nodedata(ibnex_node_type_t, void *,
83 			    int, ib_pkey_t);
84 static int		ibnex_create_port_node_prop(ibdm_port_attr_t *,
85 			    dev_info_t *, char *, ib_pkey_t);
86 void			ibnex_dm_callback(void *, ibdm_events_t);
87 static int		ibnex_create_port_compatible_prop(dev_info_t *,
88 			    char *, ibdm_port_attr_t *);
89 static int		ibnex_create_ioc_srv_props(
90 			    dev_info_t *, ibdm_ioc_info_t *);
91 static int		ibnex_get_eventcookie(dev_info_t *,
92 			    dev_info_t *, char *, ddi_eventcookie_t *);
93 static int		ibnex_add_eventcall(dev_info_t *, dev_info_t *,
94 			    ddi_eventcookie_t, void (*)(dev_info_t *,
95 			    ddi_eventcookie_t, void *, void *),
96 			    void *arg, ddi_callback_id_t *cb_id);
97 static int		ibnex_remove_eventcall(dev_info_t *,
98 			    ddi_callback_id_t);
99 static int		ibnex_post_event(dev_info_t *, dev_info_t *,
100 			    ddi_eventcookie_t, void *);
101 static int		ibnex_bus_config(dev_info_t *, uint_t,
102 			    ddi_bus_config_op_t, void *, dev_info_t **);
103 static int		ibnex_bus_unconfig(dev_info_t *,
104 			    uint_t, ddi_bus_config_op_t, void *);
105 static dev_info_t	*ibnex_config_port_node(dev_info_t *, char *);
106 static dev_info_t	*ibnex_config_obp_args(dev_info_t *, char *);
107 static int		ibnex_get_pkey_commsvc_index_portnum(
108 			    char *, int *, ib_pkey_t *, uint8_t *);
109 static void		ibnex_config_all_children(dev_info_t *);
110 static int		ibnex_devname_to_portnum(char *, uint8_t *);
111 static void		ibnex_create_vppa_nodes(
112 			    dev_info_t *, ibdm_port_attr_t *);
113 static void		ibnex_create_port_nodes(
114 			    dev_info_t *, ibdm_port_attr_t *);
115 static void		ibnex_create_hcasvc_nodes(
116 			    dev_info_t *, ibdm_port_attr_t *);
117 static int		ibnex_config_root_iocnode(dev_info_t *, char *);
118 static int		ibnex_devname2port(char *, int *);
119 static int		ibnex_config_ioc_node(char *, dev_info_t *);
120 static int		ibnex_devname_to_node_n_ioc_guids(
121 			    char *, ib_guid_t *, ib_guid_t *, char **);
122 static int		ibnex_is_ioc_present(ib_guid_t);
123 static void		ibnex_ioc_node_cleanup();
124 static void		ibnex_delete_ioc_node_data(ibnex_node_data_t *);
125 int			ibnex_ioc_initnode(ibdm_ioc_info_t *, int,
126 					    dev_info_t *);
127 static int		ibnex_create_ioc_node_prop(
128 			    ibdm_ioc_info_t *, dev_info_t *);
129 static int		ibnex_create_ioc_compatible_prop(
130 			    dev_info_t *, ib_dm_ioc_ctrl_profile_t *);
131 uint64_t		ibnex_str2hex(char *, int, int *);
132 static int		ibnex_str2int(char *, int, int *);
133 static int		ibnex_create_ioc_portgid_prop(
134 			    dev_info_t *, ibdm_ioc_info_t *);
135 static void		ibnex_wakeup_reprobe_ioc(ibnex_node_data_t *, int);
136 static void		ibnex_wakeup_reprobe_all();
137 ibt_status_t		ibnex_ibtl_callback(ibtl_ibnex_cb_args_t *);
138 static int		ibnex_prom_devname_to_pkey_n_portnum(
139 			    char *, ib_pkey_t *, uint8_t *);
140 void			ibnex_pseudo_initnodes(void);
141 static char		*ibnex_lookup_named_prop(ddi_prop_t *, char *);
142 static void		ibnex_pseudo_node_cleanup(void);
143 static int		ibnex_name_child(dev_info_t *, char *, int);
144 static int		ibnex_name_pseudo_child(dev_info_t *, char *);
145 
146 void			ibnex_reprobe_ioc_dev(void *);
147 void			ibnex_reprobe_ioc_all();
148 static void		ibnex_update_prop(ibnex_node_data_t *,
149 			    ibdm_ioc_info_t *);
150 static ibnex_rval_t	ibnex_unique_svcname(char *);
151 static void		ibnex_handle_reprobe_dev(void *arg);
152 
153 extern int		ibnex_open(dev_t *, int, int, cred_t *);
154 extern int		ibnex_close(dev_t, int, int, cred_t *);
155 extern int		ibnex_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
156 extern int		ibnex_offline_childdip(dev_info_t *);
157 
158 static int		ibnex_ioc_create_pi(
159 			    ibdm_ioc_info_t *, ibnex_node_data_t *,
160 			    dev_info_t *);
161 static int		ibnex_bus_power(dev_info_t *, void *,
162 			    pm_bus_power_op_t, void *, void *);
163 int			ibnex_pseudo_create_pi(ibnex_node_data_t *,
164 			    dev_info_t *);
165 static int		ibnex_pseudo_config_one(
166 			    ibnex_node_data_t *, char *, dev_info_t *);
167 static int		ibnex_pseudo_mdi_config_one(int, void *, dev_info_t **,
168 			    char *, char *);
169 static void		ibnex_config_pseudo_all(dev_info_t *);
170 static int		ibnex_ioc_bus_config_one(dev_info_t **, uint_t,
171 			    ddi_bus_config_op_t, void *, dev_info_t **, int *);
172 static int		ibnex_is_merge_node(dev_info_t *);
173 static int		ibnex_hw_in_dev_tree(char *);
174 
175 /*
176  * The bus_ops structure defines the capabilities of HCA nexus driver.
177  */
178 struct bus_ops ibnex_ci_busops = {
179 	BUSO_REV,
180 	nullbusmap,		/* bus_map */
181 	NULL,			/* bus_get_intrspec */
182 	NULL,			/* bus_add_intrspec */
183 	NULL,			/* bus_remove_intrspec */
184 	ibnex_map_fault,	/* Map Fault */
185 	ddi_no_dma_map,		/* DMA related entry points */
186 	NULL,
187 	NULL,
188 	NULL,
189 	NULL,
190 	NULL,
191 	NULL,
192 	NULL,
193 	ibnex_busctl,		/* bus_ctl */
194 	ddi_bus_prop_op,	/* bus_prop_op */
195 	NULL,			/* bus_get_eventcookie	*/
196 	NULL,			/* bus_add_eventcall	*/
197 	NULL,			/* bus_remove_eventcall	*/
198 	NULL,			/* bus_post_event	*/
199 	NULL,
200 	ibnex_bus_config,	/* bus config */
201 	ibnex_bus_unconfig	/* bus unconfig */
202 };
203 
204 /*
205  * Prototype declarations for the VHCI options
206  */
207 /*
208  * Functions registered with the mpxio framework
209  */
210 static int ib_vhci_pi_init(dev_info_t *, mdi_pathinfo_t *, int);
211 static int ib_vhci_pi_uninit(dev_info_t *, mdi_pathinfo_t *, int);
212 static int ib_vhci_pi_state_change(dev_info_t *, mdi_pathinfo_t *,
213 		mdi_pathinfo_state_t, uint32_t, int);
214 static int ib_vhci_failover(dev_info_t *, dev_info_t *, int);
215 
216 
217 static mdi_vhci_ops_t ibnex_vhci_ops = {
218 	MDI_VHCI_OPS_REV,
219 	ib_vhci_pi_init,
220 	ib_vhci_pi_uninit,
221 	ib_vhci_pi_state_change,
222 	ib_vhci_failover
223 };
224 
225 
226 /*
227  * The  bus_ops  structure  defines the  capabilities  of IB nexus driver.
228  * IB nexus drivers does not  support any DMA  operations for its children
229  * as there is  no  such concept in Infiniband.  All the memory operations
230  * and DMA operations required by the child drivers can be performed using
231  * the IBTF API.
232  */
233 struct bus_ops ibnex_bus_ops = {
234 	BUSO_REV,
235 	nullbusmap,		/* bus_map */
236 	NULL,			/* bus_get_intrspec */
237 	NULL,			/* bus_add_intrspec */
238 	NULL,			/* bus_remove_intrspec */
239 	ibnex_map_fault,	/* Map Fault */
240 	ddi_no_dma_map,		/* DMA related entry points */
241 	ddi_no_dma_allochdl,
242 	NULL,
243 	NULL,
244 	NULL,
245 	NULL,
246 	NULL,
247 	NULL,
248 	ibnex_busctl,		/* bus_ctl */
249 	ddi_bus_prop_op,	/* bus_prop_op */
250 	ibnex_get_eventcookie,	/* bus_get_eventcookie	*/
251 	ibnex_add_eventcall,	/* bus_add_eventcall	*/
252 	ibnex_remove_eventcall,	/* bus_remove_eventcall	*/
253 	ibnex_post_event,		/* bus_post_event	*/
254 	NULL,
255 	ibnex_bus_config,	/* bus config */
256 	ibnex_bus_unconfig,	/* bus unconfig */
257 	NULL,			/* bus fm init */
258 	NULL,			/* bus fm fini */
259 	NULL,			/* bus fm access enter */
260 	NULL,			/* bus fm access exit */
261 	ibnex_bus_power		/* bus power */
262 };
263 
264 /* ibnex cb_ops */
265 static struct cb_ops ibnex_cbops = {
266 	ibnex_open,		/* open */
267 	ibnex_close,		/* close */
268 	nodev,			/* strategy */
269 	nodev,			/* print */
270 	nodev,			/* dump */
271 	nodev,			/* read */
272 	nodev,			/* write */
273 	ibnex_ioctl,		/* ioctl */
274 	nodev,			/* devmap */
275 	nodev,			/* mmap */
276 	nodev,			/* segmap */
277 	nochpoll,		/* poll */
278 	ddi_prop_op,		/* prop_op */
279 	NULL,			/* stream */
280 	D_MP,			/* cb_flag */
281 	CB_REV, 		/* rev */
282 	nodev,			/* int (*cb_aread)() */
283 	nodev			/* int (*cb_awrite)() */
284 };
285 
286 /*
287  * Device options
288  * Note: ddi_no_info needs to change during devfs time frame. The drivers
289  *	 with 1 to 1 mapping between minor node and instance should use
290  *	 ddi_1to1_info. (See bug id 4424752)
291  */
292 static struct dev_ops ibnex_ops = {
293 	DEVO_REV,		/* devo_rev, */
294 	0,			/* refcnt  */
295 	ibnex_getinfo,		/* info */
296 	nulldev,		/* identify */
297 	nulldev,		/* probe */
298 	ibnex_attach,		/* attach */
299 	ibnex_detach,		/* detach */
300 	nodev,			/* reset */
301 	&ibnex_cbops,		/* driver ops - devctl interfaces */
302 	&ibnex_bus_ops,		/* bus operations */
303 	nulldev			/* power */
304 };
305 
306 /* Module linkage information for the kernel.  */
307 static struct modldrv modldrv = {
308 	&mod_driverops,		/* Driver module */
309 	"IB nexus %I%",		/* Driver name and version */
310 	&ibnex_ops,		/* driver ops */
311 };
312 
313 static struct modlinkage modlinkage = {
314 	MODREV_1, (void *)&modldrv, NULL
315 };
316 
317 /*
318  * Global per-instance IB Nexus data.
319  * There is only one instance of IB Nexus supported.
320  */
321 ibnex_t ibnex;
322 #ifdef __lock_lint
323 extern ibdm_t ibdm;
324 #endif
325 _NOTE(MUTEX_PROTECTS_DATA(ibnex.ibnex_mutex, ibnex_s))
326 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibnex.ibnex_num_comm_svcs
327 	ibnex.ibnex_comm_svc_names ibnex.ibnex_nvppa_comm_svcs
328 	ibnex.ibnex_vppa_comm_svc_names ibnex.ibnex_nhcasvc_comm_svcs
329 	ibnex.ibnex_hcasvc_comm_svc_names))
330 _NOTE(MUTEX_PROTECTS_DATA(ibnex.ibnex_mutex, ibnex_node_data_s))
331 _NOTE(LOCK_ORDER(ibdm.ibdm_hl_mutex ibnex.ibnex_mutex))
332 
333 /* The port settling time in seconds */
334 int	ibnex_port_settling_time = 8;
335 
336 /* create an array of properties supported, easier to add new ones here */
337 static struct ibnex_property {
338 	char			*name;
339 	ibnex_node_type_t	type;
340 } ibnex_properties[]  = {
341 	{ "port-svc-list",  IBNEX_PORT_COMMSVC_NODE},
342 	{ "vppa-svc-list",  IBNEX_VPPA_COMMSVC_NODE},
343 	{ "hca-svc-list",	IBNEX_HCASVC_COMMSVC_NODE}
344 };
345 
346 #define	N_IBNEX_PROPS	(sizeof (ibnex_properties))/ \
347 				(sizeof (struct ibnex_property))
348 
349 /*
350  * Event Definition
351  *	Single event, event name defined in ibti_common.h.
352  *	Event posted to specific child handler. Event posted
353  *	at kernel priority.
354  */
355 static ndi_event_definition_t ibnex_ndi_event_defs[] = {
356 	{IB_EVENT_TAG_PROP_UPDATE,  IB_PROP_UPDATE_EVENT, EPL_KERNEL,
357 		NDI_EVENT_POST_TO_TGT}
358 };
359 
360 #define	IB_N_NDI_EVENTS	\
361 	(sizeof (ibnex_ndi_event_defs) / sizeof (ndi_event_definition_t))
362 
363 static ndi_event_set_t ib_ndi_events = {
364 	NDI_EVENTS_REV1, IB_N_NDI_EVENTS, ibnex_ndi_event_defs};
365 static int	ibnex_hw_status = IBNEX_DEVTREE_NOT_CHECKED;
366 
367 
368 /*
369  * _init
370  *	Loadable module init, called before any other module.
371  */
372 int
373 _init(void)
374 {
375 	int	error;
376 
377 	if (ibnex_hw_status == IBNEX_DEVTREE_NOT_CHECKED) {
378 		ibnex_hw_status = (ibnex_hw_in_dev_tree("tavor")
379 		    == DDI_SUCCESS) ? IBNEX_HW_IN_DEVTREE :
380 		    IBNEX_HW_NOT_IN_DEVTREE;
381 	}
382 
383 	/*
384 	 * IB Nexus _init can be called while force attaching
385 	 * IB Nexus driver or when a HCA is hotplugged.
386 	 *
387 	 * If IB HW is not in device tree or if no HCA driver
388 	 * has been attached, fail IB Nexus _init().
389 	 */
390 	if (ibnex_hw_status == IBNEX_HW_NOT_IN_DEVTREE &&
391 	    ibt_hw_is_present() == 0) {
392 		IBTF_DPRINTF_L4("ibnex", "\t_init: NO IB HW");
393 		return (DDI_FAILURE);
394 	}
395 
396 	IBTF_DPRINTF_L4("ibnex", "\t_init");
397 	mutex_init(&ibnex.ibnex_mutex, NULL, MUTEX_DRIVER, NULL);
398 	cv_init(&ibnex.ibnex_reprobe_cv, NULL, CV_DRIVER, NULL);
399 	if ((error = mod_install(&modlinkage)) != 0) {
400 		IBTF_DPRINTF_L2("ibnex", "\t_init: mod_install failed");
401 		mutex_destroy(&ibnex.ibnex_mutex);
402 		cv_destroy(&ibnex.ibnex_reprobe_cv);
403 	} else {
404 		ibdm_ibnex_register_callback(ibnex_dm_callback);
405 		ibtl_ibnex_register_callback(ibnex_ibtl_callback);
406 	}
407 	return (error);
408 }
409 
410 
411 /*
412  * _fini
413  *	Prepares a module for unloading.
414  */
415 int
416 _fini(void)
417 {
418 	int	error;
419 
420 	IBTF_DPRINTF_L4("ibnex", "\t_fini");
421 	if ((error = mod_remove(&modlinkage)) != 0) {
422 		return (error);
423 	}
424 	ibdm_ibnex_unregister_callback();
425 	ibtl_ibnex_unregister_callback();
426 	mutex_destroy(&ibnex.ibnex_mutex);
427 	cv_destroy(&ibnex.ibnex_reprobe_cv);
428 	return (0);
429 }
430 
431 
432 /*
433  * _info
434  *	Returns information about loadable module.
435  */
436 int
437 _info(struct modinfo *modinfop)
438 {
439 	IBTF_DPRINTF_L4("ibnex", "\t_info");
440 	return (mod_info(&modlinkage, modinfop));
441 }
442 
443 
444 /*
445  * ibnex_attach
446  *	Configure and attach an instance of the IB Nexus driver
447  *	Only one instance of IB Nexus is supported
448  *	Create a minor node for cfgadm purpose
449  *	Initialize communication services
450  *	Register callback with IBDM
451  *	Register callback with IBTL
452  */
453 static int
454 ibnex_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
455 {
456 	int		i;
457 	int		instance = ddi_get_instance(dip);
458 
459 	IBTF_DPRINTF_L4("ibnex", "\tattach: device = %p cmd = %x)", dip, cmd);
460 
461 	switch (cmd) {
462 	case DDI_ATTACH:
463 		break;
464 	case DDI_RESUME:
465 		IBTF_DPRINTF_L4("ibnex", "\tattach: RESUME");
466 		return (DDI_SUCCESS);
467 	default:
468 		return (DDI_FAILURE);
469 	}
470 
471 	/* Fail attach for more than one instance */
472 	mutex_enter(&ibnex.ibnex_mutex);
473 	if (ibnex.ibnex_dip != NULL) {
474 		mutex_exit(&ibnex.ibnex_mutex);
475 		return (DDI_FAILURE);
476 	}
477 	mutex_exit(&ibnex.ibnex_mutex);
478 
479 	/* Register with MPxIO framework */
480 
481 	if (mdi_vhci_register(MDI_HCI_CLASS_IB, dip, &ibnex_vhci_ops, 0)
482 	    != MDI_SUCCESS) {
483 		IBTF_DPRINTF_L2("ibnex",
484 		    "\tattach: mdi_vhci_register() failed");
485 		return (DDI_FAILURE);
486 	}
487 
488 
489 	/*
490 	 * Create the "fabric" devctl minor-node for IB DR support.
491 	 * The minor number for the "devctl" node is in the same format
492 	 * as the AP minor nodes.
493 	 */
494 	if (ddi_create_minor_node(dip, IBNEX_FABRIC, S_IFCHR, instance,
495 	    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
496 		IBTF_DPRINTF_L2("ibnex",
497 		    "\tattach: failed to create fabric minornode");
498 		(void) mdi_vhci_unregister(dip, 0);
499 		return (DDI_FAILURE);
500 	}
501 
502 
503 	/*
504 	 * Set pm-want-child-notification property for
505 	 * power management of the phci and client
506 	 */
507 	if (ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP,
508 	    "pm-want-child-notification?", NULL, NULL) != DDI_PROP_SUCCESS) {
509 		IBTF_DPRINTF_L2("ibnex",
510 		    "_attach: create pm-want-child-notification failed");
511 		(void) ddi_remove_minor_node(dip, NULL);
512 		(void) mdi_vhci_unregister(dip, 0);
513 		return (DDI_FAILURE);
514 	}
515 
516 	mutex_enter(&ibnex.ibnex_mutex);
517 	ibnex.ibnex_dip  = dip;
518 	mutex_exit(&ibnex.ibnex_mutex);
519 
520 	/*
521 	 * Event Handling: Definition and Binding.
522 	 */
523 	if (ndi_event_alloc_hdl(dip, 0, &ibnex.ibnex_ndi_event_hdl,
524 	    NDI_SLEEP) != NDI_SUCCESS) {
525 		(void) ddi_remove_minor_node(dip, NULL);
526 		IBTF_DPRINTF_L2("ibnex",
527 		    "_attach: ndi_event_alloc_hdl failed");
528 		(void) mdi_vhci_unregister(dip, 0);
529 		return (DDI_FAILURE);
530 	}
531 	if (ndi_event_bind_set(ibnex.ibnex_ndi_event_hdl, &ib_ndi_events,
532 	    NDI_SLEEP) != NDI_SUCCESS) {
533 		(void) ddi_remove_minor_node(dip, NULL);
534 		(void) ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl);
535 		IBTF_DPRINTF_L2("ibnex",
536 		    "_attach: ndi_event_bind_set failed");
537 		(void) mdi_vhci_unregister(dip, 0);
538 		return (DDI_FAILURE);
539 	}
540 
541 	for (i = 0; i < N_IBNEX_PROPS; i++) {
542 		if (ibnex_comm_svc_init(ibnex_properties[i].name,
543 		    ibnex_properties[i].type) != IBNEX_SUCCESS) {
544 			ibnex_comm_svc_fini();
545 			(void) ndi_event_unbind_set(ibnex.ibnex_ndi_event_hdl,
546 			    &ib_ndi_events, NDI_SLEEP);
547 			(void) ddi_remove_minor_node(dip, NULL);
548 			(void) ndi_event_free_hdl(
549 			    ibnex.ibnex_ndi_event_hdl);
550 			ibnex.ibnex_ndi_event_hdl = NULL;
551 			IBTF_DPRINTF_L2("ibnex", "_attach: ibnex_comm_svc_init"
552 			    " failed %s", ibnex_properties[i].name);
553 			(void) mdi_vhci_unregister(dip, 0);
554 			return (DDI_FAILURE);
555 		}
556 	}
557 
558 	/*
559 	 * before anything else comes up:
560 	 * Initialize the internal list of pseudo device nodes by
561 	 * getting all pseudo children of "ib" and processing them.
562 	 */
563 	ibnex_pseudo_initnodes();
564 
565 	return (DDI_SUCCESS);
566 }
567 
568 
569 /*
570  * ibnex_getinfo()
571  * Given the device number, return the devinfo pointer or the
572  * instance number.
573  * Note: always succeed DDI_INFO_DEVT2INSTANCE, even before attach.
574  */
575 
576 /*ARGSUSED*/
577 static int
578 ibnex_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
579 {
580 	int ret = DDI_SUCCESS;
581 
582 	IBTF_DPRINTF_L4("ibnex", "\tgetinfo: Begin");
583 	switch (cmd) {
584 	case DDI_INFO_DEVT2DEVINFO:
585 		if (ibnex.ibnex_dip != NULL)
586 			*result = ibnex.ibnex_dip;
587 		else {
588 			*result = NULL;
589 			ret = DDI_FAILURE;
590 		}
591 		break;
592 
593 	case DDI_INFO_DEVT2INSTANCE:
594 		*result = 0;
595 		break;
596 
597 	default:
598 		ret = DDI_FAILURE;
599 	}
600 	return (ret);
601 }
602 
603 
604 /*
605  * ibnex_detach
606  *	Unregister callback with the IBDM
607  *	Unregister callback with the IBTL
608  *	Uninitialize the communication entries
609  *	Remove all the minor nodes created by this instance
610  */
611 static int
612 ibnex_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
613 {
614 
615 	IBTF_DPRINTF_L4("ibnex", "\tdetach: dip = %p cmd = %x)", dip, cmd);
616 
617 	switch (cmd) {
618 
619 	case DDI_DETACH:
620 		break;
621 	case DDI_SUSPEND:
622 		IBTF_DPRINTF_L4("ibnex", "\t_detach: Suspend");
623 		return (DDI_SUCCESS);
624 	default:
625 		return (DDI_FAILURE);
626 	}
627 
628 	mutex_enter(&ibnex.ibnex_mutex);
629 	if (ibt_hw_is_present()) {
630 		IBTF_DPRINTF_L2("ibnex",
631 		    "\tdetach: IB HW is present ");
632 		mutex_exit(&ibnex.ibnex_mutex);
633 		return (DDI_FAILURE);
634 	}
635 	if (ndi_event_free_hdl(ibnex.ibnex_ndi_event_hdl)) {
636 		IBTF_DPRINTF_L2("ibnex",
637 		    "\tdetach: ndi_event_free_hdl() failed");
638 		mutex_exit(&ibnex.ibnex_mutex);
639 		return (DDI_FAILURE);
640 	}
641 	ibnex.ibnex_ndi_event_hdl = NULL;
642 	ibnex.ibnex_prop_update_evt_cookie = NULL;
643 
644 	ibnex_pseudo_node_cleanup();
645 	ibnex_comm_svc_fini();
646 	ibnex_ioc_node_cleanup();
647 
648 	(void) ddi_remove_minor_node(dip, NULL);
649 	ibnex.ibnex_dip = NULL;
650 	mutex_exit(&ibnex.ibnex_mutex);
651 	(void) mdi_vhci_unregister(dip, 0);
652 	return (DDI_SUCCESS);
653 }
654 
655 
656 /*
657  * ibnex_pseudo_node_cleanup()
658  *	This checks if all the "dips" have been deallocated (implying
659  *	that all the children have been unconfigured) first.
660  *	If not, it just returns.
661  *	If yes, then it frees up memory allocated for devi_name,
662  *	node_addr, and property list.
663  */
664 static void
665 ibnex_pseudo_node_cleanup(void)
666 {
667 	ibnex_node_data_t	*nodep =  ibnex.ibnex_pseudo_node_head;
668 	ibnex_pseudo_node_t	*pseudo;
669 
670 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup:");
671 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
672 
673 	for (; nodep; nodep = nodep->node_next)
674 		if (nodep->node_dip)
675 			return;
676 
677 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_node_cleanup: freeing up memory");
678 	for (nodep =  ibnex.ibnex_pseudo_node_head; nodep;
679 	    nodep = nodep->node_next) {
680 
681 		pseudo = &nodep->node_data.pseudo_node;
682 		if (pseudo->pseudo_node_addr) {
683 			kmem_free(pseudo->pseudo_node_addr,
684 			    strlen(pseudo-> pseudo_node_addr) + 1);
685 			pseudo->pseudo_node_addr = NULL;
686 		}
687 
688 		if (pseudo->pseudo_devi_name) {
689 			kmem_free(pseudo->pseudo_devi_name,
690 			    strlen(pseudo-> pseudo_devi_name) + 1);
691 			pseudo->pseudo_devi_name = NULL;
692 		}
693 
694 		if (pseudo->pseudo_unit_addr) {
695 			kmem_free(pseudo->pseudo_unit_addr,
696 			    pseudo->pseudo_unit_addr_len);
697 		}
698 	}
699 }
700 
701 
702 /*
703  * This functions wakes up any reprobe requests waiting for completion
704  * of reprobe of this IOC. It also send an NDI event, if  :
705  *
706  *	notify_flag is set. This is set if :
707  *		ibt_reprobe_ioc has returned with SUCCESS
708  *		IBTF client has not been notified for this node.
709  *	node_data->node_dip != NULL
710  *	node_state has IBNEX_NODE_REPROBE_NOTIFY_ALWAYS set
711  *	An NDI event cookie has been registered.
712  */
713 static void
714 ibnex_wakeup_reprobe_ioc(ibnex_node_data_t *node_data, int notify_flag)
715 {
716 	ddi_eventcookie_t	evt_cookie;
717 
718 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
719 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
720 
721 	if ((ibnex.ibnex_reprobe_state == IBNEX_REPROBE_IOC_WAIT) ||
722 	    (node_data->node_reprobe_state != 0)) {
723 		if (notify_flag && (node_data->node_dip != NULL) &&
724 		    (node_data->node_state &
725 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS) &&
726 		    (evt_cookie != NULL)) {
727 			ibt_prop_update_payload_t	evt_data;
728 
729 			mutex_exit(&ibnex.ibnex_mutex);
730 
731 			bzero(&evt_data, sizeof (evt_data));
732 			if (ndi_post_event(ibnex.ibnex_dip,
733 			    node_data->node_dip,
734 			    evt_cookie, &evt_data) != NDI_SUCCESS)
735 				IBTF_DPRINTF_L2("ibnex",
736 				    "\tndi_post_event failed\n");
737 
738 			mutex_enter(&ibnex.ibnex_mutex);
739 		}
740 
741 		node_data->node_reprobe_state = 0;
742 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
743 	}
744 	node_data->node_reprobe_state = 0;
745 }
746 
747 /*
748  * This function wakes up any reprobe request waiting for completion
749  * of reprobe of all IOCs.
750  */
751 static void
752 ibnex_wakeup_reprobe_all()
753 {
754 	ibnex_node_data_t *ioc_node;
755 
756 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
757 
758 	/* Notify if another reprobe_all is pending */
759 	if (ibnex.ibnex_reprobe_state == IBNEX_REPROBE_ALL_WAIT) {
760 		ibnex.ibnex_reprobe_state = 0;
761 		cv_broadcast(&ibnex.ibnex_reprobe_cv);
762 	}
763 	ibnex.ibnex_reprobe_state = 0;
764 
765 	/*
766 	 * The IOC may be hot-removed after the reprobe request.
767 	 * Reset the reprobe states for such IOCs.
768 	 */
769 	for (ioc_node = ibnex.ibnex_ioc_node_head; ioc_node;
770 	    ioc_node = ioc_node->node_next) {
771 		if (ioc_node->node_reprobe_state != 0) {
772 			ibnex_wakeup_reprobe_ioc(ioc_node, 1);
773 		}
774 	}
775 }
776 
777 /*
778  * ibnex_ibnex_callback:
779  *	IBTL_IBNEX_IBC_INIT:
780  *		Called from ibc_init() which is called from
781  *		HCA driver _init entry point
782  *		Initializes the HCA dev_ops structure with default
783  *		IB nexus structure.
784  *	IBTL_IBNEX_IBC_FINI:
785  *		Called from ibc_fini() which is called from
786  *		HCA driver _fini entry point
787  *		Un-Initializes the HCA dev_ops structure with default
788  *		IB nexus strucuture.
789  *	Returns IBT_SUCCESS
790  */
791 ibt_status_t
792 ibnex_ibtl_callback(ibtl_ibnex_cb_args_t *cb_args)
793 {
794 	int			retval = IBT_SUCCESS;
795 	struct dev_ops 		*hca_dev_ops;
796 	dev_info_t		*clnt_dip;
797 	ibnex_node_data_t	*node_data;
798 
799 	IBTF_DPRINTF_L5("ibnex", "\tibtl_callback");
800 
801 	switch (cb_args->cb_flag) {
802 	case IBTL_IBNEX_IBC_INIT:
803 		/*
804 		 * Get the devops structure of the HCA,
805 		 * and put IB nexus default busops vector in its place.
806 		 */
807 		hca_dev_ops = ((struct modldrv *)
808 			(cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
809 		ASSERT((hca_dev_ops) && (hca_dev_ops->devo_bus_ops == NULL));
810 		hca_dev_ops->devo_bus_ops = &ibnex_ci_busops;
811 		break;
812 
813 	case IBTL_IBNEX_IBC_FINI:
814 		hca_dev_ops = ((struct modldrv *)
815 			(cb_args->cb_modlp->ml_linkage[0]))->drv_dev_ops;
816 		hca_dev_ops->devo_bus_ops = NULL;
817 		break;
818 
819 	case IBTL_IBNEX_REPROBE_DEV_REQ:
820 		/* IBTL pass down request for ibt_reprobe_dev */
821 		clnt_dip = cb_args->cb_dip;
822 		ASSERT(clnt_dip);
823 
824 		node_data = ddi_get_parent_data(clnt_dip);
825 		ASSERT(node_data);
826 
827 		/* Reprobe for IOC nodes only */
828 		ASSERT(node_data->node_type == IBNEX_IOC_NODE);
829 
830 		/*
831 		 * Start the reprobe. This could sleep as it is not
832 		 * from interrupt context.
833 		 */
834 		if (taskq_dispatch(system_taskq, ibnex_handle_reprobe_dev,
835 		    clnt_dip, TQ_SLEEP) == 0) {
836 			IBTF_DPRINTF_L2("ibnex",
837 			    "ibnex_ibtl_callback: taskq_dispatch failed");
838 			mutex_enter(&ibnex.ibnex_mutex);
839 			ibnex_wakeup_reprobe_ioc(node_data, 0);
840 			mutex_exit(&ibnex.ibnex_mutex);
841 			return (IBT_INSUFF_KERNEL_RESOURCE);
842 		}
843 		return (IBT_SUCCESS);
844 	}
845 
846 	return (retval);
847 }
848 
849 
850 /*
851  * Bus-ops entry points
852  */
853 
854 /*
855  * ibnex_map_fault
856  * 	IOC drivers need not map memory. Return failure to fail any
857  *	such calls.
858  */
859 /*ARGSUSED*/
860 static int
861 ibnex_map_fault(dev_info_t *dip, dev_info_t *rdip, struct hat *hat,
862     struct seg *seg, caddr_t addr, struct devpage *dp, pfn_t pfn,
863     uint_t prot, uint_t lock)
864 {
865 	return (DDI_FAILURE);
866 }
867 
868 
869 /*
870  * ibnex_busctl
871  * 	bus_ctl bus_ops entry point
872  */
873 /*ARGSUSED*/
874 static int
875 ibnex_busctl(dev_info_t *dip, dev_info_t *rdip,
876     ddi_ctl_enum_t ctlop, void *arg, void *result)
877 {
878 	dev_info_t		*child_dip;
879 
880 	IBTF_DPRINTF_L4("ibnex",
881 	    "\tbusctl: dip = %p, rdip = %p, ctlop = %x,", dip, rdip, ctlop);
882 	IBTF_DPRINTF_L4("ibnex", "\tbusctl: targ = %p, result %p", arg, result);
883 
884 	switch (ctlop) {
885 	case DDI_CTLOPS_REPORTDEV:
886 		if (rdip == NULL) {
887 			return (DDI_FAILURE);
888 		}
889 
890 		/* Log the relevant details of dip to sysbuf */
891 		cmn_err(CE_CONT, "?IB device: %s@%s, %s%d\n",
892 		    ddi_node_name(rdip), ddi_get_name_addr(rdip),
893 		    ddi_driver_name(rdip), ddi_get_instance(rdip));
894 
895 		return (DDI_SUCCESS);
896 
897 	case DDI_CTLOPS_INITCHILD:
898 		child_dip = (dev_info_t *)arg;
899 		return (ibnex_init_child(child_dip));
900 
901 	case DDI_CTLOPS_UNINITCHILD:
902 		child_dip = (dev_info_t *)arg;
903 		ddi_set_name_addr(child_dip, NULL);
904 		return (DDI_SUCCESS);
905 
906 	case DDI_CTLOPS_ATTACH:
907 	case DDI_CTLOPS_DETACH:
908 	case DDI_CTLOPS_POWER :
909 		return (DDI_SUCCESS);
910 
911 	case DDI_CTLOPS_SIDDEV:
912 		/*
913 		 * Return DDI_SUCCESS for IOC/PORT/VPPA nodes and
914 		 * DDI_FAILURE for the nodes enumerated by a Pseudo file.
915 		 */
916 		return (ndi_dev_is_persistent_node(rdip) ?
917 		    DDI_SUCCESS : DDI_FAILURE);
918 
919 
920 	case DDI_CTLOPS_IOMIN:
921 		/*
922 		 * Return DDI_SUCCESS, so that consistent buf alloc
923 		 * gets the default DMA IO minimum for the platform
924 		 */
925 		return (DDI_SUCCESS);
926 
927 	/*
928 	 * These ops correspond to functions that "shouldn't" be
929 	 * called by IB Nexus driver.
930 	 */
931 	case DDI_CTLOPS_DMAPMAPC:
932 	case DDI_CTLOPS_REPORTINT:
933 	case DDI_CTLOPS_REGSIZE:
934 	case DDI_CTLOPS_NREGS:
935 	case DDI_CTLOPS_SLAVEONLY:
936 	case DDI_CTLOPS_AFFINITY:
937 	case DDI_CTLOPS_POKE:
938 	case DDI_CTLOPS_PEEK:
939 		IBTF_DPRINTF_L2("ibnex",
940 		    "%s%d: invalid op (%d) from %s inst%d",
941 		    ddi_get_name(dip), ddi_get_instance(dip),
942 		    ctlop, ddi_get_name(rdip), ddi_get_instance(rdip));
943 		return (DDI_FAILURE);
944 
945 	/*
946 	 * Everything else (PTOB/BTOP/BTOPR/DVMAPAGESIZE requests) we
947 	 * pass up
948 	 */
949 	default:
950 		return (ddi_ctlops(dip, rdip, ctlop, arg, result));
951 	}
952 }
953 
954 
955 /*
956  * ibnex_init_child()
957  *
958  * Initialize a child device node. This is called for the DDI_CTLOPS_INITCHILD
959  * entry. Function returns DDI_SUCCESS,  DDI_FAILURE or DDI_NOT_WELL_FORMED.
960  */
961 static int
962 ibnex_init_child(dev_info_t *child)
963 {
964 	int			ret;
965 	char			name[MAXNAMELEN];
966 
967 	IBTF_DPRINTF_L4("ibnex", "\tinit_child: child = %p", child);
968 
969 	/* Handle Pseudo nodes of client children */
970 	if (ndi_dev_is_persistent_node(child) == 0) {
971 		/* Skip nodes without ib-node-type="merge" */
972 		if (ibnex_is_merge_node(child) != IBNEX_SUCCESS)
973 			return (DDI_FAILURE);
974 
975 		if (ibnex_name_pseudo_child(child, name) != DDI_SUCCESS)
976 			return (DDI_FAILURE);
977 
978 		ddi_set_name_addr(child, name);
979 		/*
980 		 * Merge the .conf node
981 		 */
982 		if (ndi_merge_node(child,
983 		    ibnex_name_child) == DDI_SUCCESS) {
984 			ddi_set_name_addr(child, NULL);
985 			return (DDI_FAILURE);
986 		}
987 		return (DDI_NOT_WELL_FORMED);
988 
989 	}
990 
991 	if ((ret = ibnex_name_child(child, name, 0)) != DDI_SUCCESS)
992 		return (ret);
993 
994 	ddi_set_name_addr(child, name);
995 
996 	return (DDI_SUCCESS);
997 }
998 
999 
1000 int
1001 ibnex_name_pseudo_child(dev_info_t *child, char *name)
1002 {
1003 	char **unit_addr;
1004 	uint_t n;
1005 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, child,
1006 	    DDI_PROP_DONTPASS, "unit-address", &unit_addr, &n) !=
1007 	    DDI_PROP_SUCCESS) {
1008 		IBTF_DPRINTF_L4("ibnex",
1009 		    "\tname_pseudo_child: cannot find unit-address in %s.conf",
1010 		    ddi_get_name(child));
1011 		return (DDI_FAILURE);
1012 	}
1013 	if (n != 1 || *unit_addr == NULL || **unit_addr == 0) {
1014 		cmn_err(CE_WARN, "unit-address property in %s.conf"
1015 		    " not well-formed", ddi_get_name(child));
1016 		ddi_prop_free(unit_addr);
1017 		return (DDI_FAILURE);
1018 	}
1019 	(void) snprintf(name, MAXNAMELEN, "%s", *unit_addr);
1020 	ddi_prop_free(unit_addr);
1021 	return (DDI_SUCCESS);
1022 }
1023 
1024 
1025 /*ARGSUSED*/
1026 int
1027 ibnex_name_child(dev_info_t *child, char *name, int flag)
1028 {
1029 	ibnex_pseudo_node_t	*pseudo;
1030 	ibnex_node_data_t	*node_datap;
1031 	ibnex_port_node_t	*port_node;
1032 	ibnex_ioc_node_t	*ioc;
1033 
1034 	node_datap = ddi_get_parent_data(child);
1035 	if (node_datap == NULL) {
1036 		IBTF_DPRINTF_L2("ibnex", "\tname_child: Node data is NULL");
1037 		return (DDI_NOT_WELL_FORMED);
1038 	}
1039 	IBTF_DPRINTF_L4("ibnex", "\tname_sid_child: Node data %p"
1040 	    "Node type %x", node_datap, node_datap->node_type);
1041 	switch (node_datap->node_type) {
1042 	case IBNEX_PORT_COMMSVC_NODE:
1043 		port_node = &node_datap->node_data.port_node;
1044 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1045 		    port_node->port_num,
1046 		    ibnex.ibnex_comm_svc_names[port_node->port_commsvc_idx]);
1047 		break;
1048 	case IBNEX_VPPA_COMMSVC_NODE:
1049 		port_node = &node_datap->node_data.port_node;
1050 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,%x,%s",
1051 		    port_node->port_num, port_node->port_pkey, ibnex.
1052 		    ibnex_vppa_comm_svc_names[port_node->port_commsvc_idx]);
1053 		break;
1054 	case IBNEX_HCASVC_COMMSVC_NODE:
1055 		port_node = &node_datap->node_data.port_node;
1056 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%x,0,%s",
1057 		    port_node->port_num,
1058 		    ibnex.ibnex_hcasvc_comm_svc_names[port_node->
1059 		    port_commsvc_idx]);
1060 		break;
1061 	case IBNEX_IOC_NODE:
1062 		ioc = &node_datap->node_data.ioc_node;
1063 		(void) snprintf(name, IBNEX_MAX_NODEADDR_SZ, "%llX,%llX",
1064 		    (longlong_t)ioc->ioc_guid, (longlong_t)ioc->iou_guid);
1065 		break;
1066 	case IBNEX_PSEUDO_NODE:
1067 		pseudo = &node_datap->node_data.pseudo_node;
1068 		(void) snprintf(name,
1069 		    IBNEX_MAX_NODEADDR_SZ, pseudo->pseudo_unit_addr);
1070 		break;
1071 	default:
1072 		IBTF_DPRINTF_L2("ibnex", "\name_child: Not well formed");
1073 		return (DDI_NOT_WELL_FORMED);
1074 	}
1075 
1076 	return (DDI_SUCCESS);
1077 }
1078 
1079 
1080 /*
1081  * ibnex_bus_config()
1082  *
1083  * BUS_CONFIG_ONE:
1084  *	Enumerate the exact instance of the driver. Use the device node name
1085  *	to locate the exact instance.
1086  *	Query IBDM to find whether the hardware exits for the instance of the
1087  *	driver. If exists, create a device node and return NDI_SUCCESS.
1088  *
1089  * BUS_CONFIG_ALL:
1090  *	Enumerate all the instances of all the possible children (seen before
1091  *	and never seen before).
1092  *
1093  * BUS_CONFIG_DRIVER:
1094  *	Enumerate all the instances of a particular driver.
1095  */
1096 static int
1097 ibnex_bus_config(dev_info_t *parent, uint_t flag,
1098     ddi_bus_config_op_t op, void *devname, dev_info_t **child)
1099 {
1100 	int			ret = IBNEX_SUCCESS, len, circ, need_bus_config;
1101 	char 			*device_name, *cname = NULL, *caddr = NULL;
1102 	char			*device_name1;
1103 	char			*srvname, nameaddr[MAXNAMELEN];
1104 	dev_info_t		*cdip, *pdip = NULL;
1105 	ibnex_node_data_t	*node_data;
1106 	ibnex_port_node_t	*port_node;
1107 
1108 	ndi_devi_enter(parent, &circ);
1109 
1110 	switch (op) {
1111 	case BUS_CONFIG_ONE:
1112 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ONE, "
1113 		    "parent %p", parent);
1114 
1115 		len = strlen((char *)devname) + 1;
1116 		device_name = i_ddi_strdup(devname, KM_SLEEP);
1117 		i_ddi_parse_name(device_name, &cname, &caddr, NULL);
1118 
1119 		if (caddr == NULL || (strlen(caddr) == 0)) {
1120 			kmem_free(device_name, len);
1121 			ndi_devi_exit(parent, circ);
1122 			return (NDI_FAILURE);
1123 		}
1124 
1125 		/*
1126 		 * i_ddi_parse_name() strips of the address portion
1127 		 * of the device name. Recreate device name for
1128 		 * ndi_devi_findchild
1129 		 */
1130 		device_name1 = i_ddi_strdup(devname, KM_SLEEP);
1131 
1132 		IBTF_DPRINTF_L4("ibnex",
1133 		    "\tbus_config: cname %s addr %s", cname, caddr);
1134 
1135 		cdip = ndi_devi_findchild(parent, device_name1);
1136 		kmem_free(device_name1, len);
1137 		if (cdip == NULL) {
1138 			/* Node is not present */
1139 			if (strncmp(cname, IBNEX_IOC_CNAME, 3) == 0) {
1140 				ndi_devi_exit(parent, circ);
1141 				ret = ibnex_ioc_bus_config_one(&parent, flag,
1142 				    op, devname, child, &need_bus_config);
1143 				if (!need_bus_config) {
1144 					kmem_free(device_name, len);
1145 					return (ret);
1146 				}
1147 
1148 				ndi_devi_enter(parent, &circ);
1149 			} else if ((strncmp(cname,
1150 			    IBNEX_IBPORT_CNAME, 6) == 0) &&
1151 			    (parent != ibnex.ibnex_dip)) { /* parent is HCA */
1152 				cdip = ibnex_config_port_node(parent, devname);
1153 				if (cdip)
1154 					ret = IBNEX_SUCCESS;
1155 				else
1156 					ret = IBNEX_FAILURE;
1157 				/* Allows enumeration under PHCI */
1158 				flag |= NDI_MDI_FALLBACK;
1159 			} else {
1160 				/*
1161 				 * if not IOC or PORT device then always
1162 				 * assume a Pseudo child
1163 				 *
1164 				 * if IB Nexus is the parent, call MDI.
1165 				 * else if HCA is the parent, enumerate
1166 				 * the Pseudo node.
1167 				 */
1168 				ret = IBNEX_SUCCESS;
1169 				ibnex_pseudo_initnodes();
1170 				if (parent == ibnex.ibnex_dip) {
1171 					ndi_devi_exit(parent, circ);
1172 					mutex_enter(&ibnex.ibnex_mutex);
1173 					ret = ibnex_pseudo_mdi_config_one(
1174 					    flag, devname, child, cname,
1175 					    caddr);
1176 					mutex_exit(&ibnex.ibnex_mutex);
1177 					kmem_free(device_name, len);
1178 					return (ret);
1179 				}
1180 				mutex_enter(&ibnex.ibnex_mutex);
1181 				ret = ibnex_pseudo_config_one(NULL,
1182 				    caddr, parent);
1183 				mutex_exit(&ibnex.ibnex_mutex);
1184 			}
1185 		}
1186 		kmem_free(device_name, len);
1187 		break;
1188 
1189 	case BUS_CONFIG_OBP_ARGS:
1190 		cdip = ibnex_config_obp_args(parent, devname);
1191 		if (cdip) {
1192 			/*
1193 			 * Boot case.
1194 			 * Special handling because the "devname"
1195 			 * format for the enumerated device is
1196 			 * different.
1197 			 */
1198 			node_data = ddi_get_parent_data(cdip);
1199 			port_node = &node_data->node_data.port_node;
1200 			if (node_data->node_type ==
1201 			    IBNEX_VPPA_COMMSVC_NODE) {
1202 				srvname =
1203 				    ibnex.ibnex_vppa_comm_svc_names[
1204 				    port_node->port_commsvc_idx];
1205 				(void) snprintf(nameaddr, MAXNAMELEN,
1206 				    "ibport@%x,%x,%s",
1207 				    port_node->port_num,
1208 				    port_node->port_pkey, srvname);
1209 			}
1210 			devname = (void *)nameaddr;
1211 		} else {
1212 			IBTF_DPRINTF_L2("ibnex",
1213 			    "\tbus_config: CONFIG_OBP_ARGS : invalid state!!");
1214 
1215 			ret = IBNEX_FAILURE;
1216 		}
1217 		break;
1218 	case BUS_CONFIG_ALL:
1219 		/*FALLTHRU*/
1220 	case BUS_CONFIG_DRIVER:
1221 		if (op == BUS_CONFIG_ALL)
1222 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_ALL, "
1223 			    "parent %p", parent);
1224 		else
1225 			IBTF_DPRINTF_L4("ibnex", "\tbus_config: CONFIG_DRIVER"
1226 			    ", parent %p", parent);
1227 
1228 		/*
1229 		 * Drive CONFIG requests for IB Nexus parent through
1230 		 * MDI. This is needed to load the HCA drivers in x86 SRP
1231 		 * boot case.
1232 		 *
1233 		 * CONFIG Requests with HCA parent will probe devices using
1234 		 * ibdm and configure all children.
1235 		 */
1236 		if (parent == ibnex.ibnex_dip) {
1237 			ndi_devi_exit(parent, circ);
1238 			ret = mdi_vhci_bus_config(parent,
1239 			    flag, op, devname, child, NULL);
1240 			return (ret);
1241 		} else {
1242 			ibnex_config_all_children(parent);
1243 		}
1244 		break;
1245 	default:
1246 		IBTF_DPRINTF_L4("ibnex", "\tbus_config: error");
1247 		ret = IBNEX_FAILURE;
1248 		break;
1249 	}
1250 	ndi_devi_exit(parent, circ);
1251 	if (ret == IBNEX_SUCCESS) {
1252 		if (op == BUS_CONFIG_OBP_ARGS)
1253 			op = BUS_CONFIG_ONE;
1254 
1255 		if (pdip == NULL)
1256 			pdip = parent;
1257 
1258 		ret = ndi_busop_bus_config(
1259 		    pdip, flag, op, devname, child, 0);
1260 		IBTF_DPRINTF_L4("ibnex", "\tbus_config:"
1261 		    "ndi_busop_bus_config : retval %d", ret);
1262 		return (ret);
1263 	}
1264 
1265 	IBTF_DPRINTF_L2("ibnex", "\tbus_config: Failure End");
1266 	return (NDI_FAILURE);
1267 }
1268 
1269 
1270 /*
1271  * ibnex_config_root_iocnode()
1272  *	Configures one particular instance of the IOC driver.
1273  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1274  */
1275 static int
1276 ibnex_config_root_iocnode(dev_info_t *parent, char *device_name)
1277 {
1278 	int			ret, port = 0, iter = 0;
1279 	boolean_t		displayed = B_FALSE;
1280 	char			*portstr;
1281 	ib_guid_t		hca_guid, iou_guid, ioc_guid;
1282 	ibdm_ioc_info_t		*ioc_info;
1283 	ibdm_port_attr_t	*port_attr;
1284 
1285 	IBTF_DPRINTF_L4("ibnex",
1286 	    "\tconfig_root_iocnode: name %s", device_name);
1287 
1288 	portstr = strstr(device_name, ":port=");
1289 	if (portstr == NULL) {
1290 		return (IBNEX_FAILURE);
1291 	}
1292 
1293 	portstr[0] = 0; portstr++;
1294 	if (ibnex_devname2port(portstr, &port)) {
1295 		IBTF_DPRINTF_L4("ibnex", "\tconfig_root_iocnode: invalid port");
1296 		return (IBNEX_FAILURE);
1297 	}
1298 
1299 	if (ibnex_devname_to_node_n_ioc_guids(
1300 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
1301 		return (IBNEX_FAILURE);
1302 	}
1303 
1304 	(void) snprintf(device_name, (IBNEX_MAX_NODEADDR_SZ + 4),
1305 	    "ioc@%llX,%llX", (longlong_t)ioc_guid, (longlong_t)iou_guid);
1306 
1307 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1308 	if ((port_attr = ibdm_ibnex_probe_hcaport(hca_guid, port)) == NULL) {
1309 		IBTF_DPRINTF_L2("ibnex",
1310 		    "\tconfig_root_iocnode: Port does not exist");
1311 		return (IBNEX_FAILURE);
1312 	}
1313 
1314 	/* Wait until "port is up" */
1315 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1316 		ibdm_ibnex_free_port_attr(port_attr);
1317 		delay(drv_usectohz(10000));
1318 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1319 		    hca_guid, port)) == NULL) {
1320 			return (IBNEX_FAILURE);
1321 		}
1322 
1323 		if (iter++ == 400) {
1324 			if (displayed == B_FALSE) {
1325 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1326 				    "initialization", port_attr->pa_port_num);
1327 				displayed = B_TRUE;
1328 			}
1329 		}
1330 	}
1331 	ibdm_ibnex_free_port_attr(port_attr);
1332 	IBTF_DPRINTF_L4("ibnex", "\tconfig_rootioc_node:"
1333 	    "Port is initialized");
1334 
1335 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) == NULL) {
1336 		ibdm_ibnex_free_ioc_list(ioc_info);
1337 		return (IBNEX_FAILURE);
1338 	}
1339 	mutex_enter(&ibnex.ibnex_mutex);
1340 	if (ibnex_is_ioc_present(ioc_guid) == IBNEX_SUCCESS) {
1341 		IBTF_DPRINTF_L4("ibnex", "\tconfig_root_iocnode: IOC present");
1342 		ret = IBNEX_SUCCESS;
1343 	} else
1344 		ret = ibnex_ioc_initnode(ioc_info, IBNEX_DEVFS_ENUMERATE,
1345 		    parent);
1346 	mutex_exit(&ibnex.ibnex_mutex);
1347 	ibdm_ibnex_free_ioc_list(ioc_info);
1348 	return (ret);
1349 }
1350 
1351 
1352 static int
1353 ibnex_devname2port(char *portstr, int *port)
1354 {
1355 	char	*temp;
1356 	int	ret = IBNEX_FAILURE;
1357 
1358 	IBTF_DPRINTF_L4("ibnex", "\tdevname2port: Begin");
1359 
1360 	temp = strchr(portstr, '=');
1361 	if (temp != NULL) {
1362 		temp++;
1363 		*port = ibnex_str2int(temp, strlen(temp), &ret);
1364 	}
1365 	return (ret);
1366 }
1367 
1368 
1369 /*
1370  * ibnex_config_all_children()
1371  *	Wait for lata SM initialization case before enumerating the nodes
1372  *	Get list of HCA's and HCA port information
1373  *		Create device device nodes and its node properties
1374  *		for port nodes and VPPA nodes
1375  *	Get list of all the IOC node information
1376  *		Create device nodes and its properties for all the IOCs
1377  *		if not created already
1378  *	Bind drivers for all the newly created device nodes
1379  *	Support Pseudo nodes enumerated using their .conf file
1380  */
1381 static void
1382 ibnex_config_all_children(dev_info_t *parent)
1383 {
1384 	int			ii;
1385 	time_t			wait_time;
1386 	ibdm_ioc_info_t		*ioc_list, *ioc;
1387 	ibdm_hca_list_t		*hca_list;
1388 	ib_guid_t		hca_guid;
1389 
1390 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: Begin");
1391 
1392 	/*
1393 	 * Enumerate children of this HCA, port nodes,
1394 	 * VPPA & HCA_SVC nodes
1395 	 */
1396 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1397 	wait_time = ibdm_ibnex_get_waittime(
1398 		hca_guid, &ibnex_port_settling_time);
1399 	if (wait_time) {
1400 		delay(drv_usectohz(wait_time * 1000000));
1401 	}
1402 	hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1403 	if (hca_list == NULL)
1404 		return;
1405 	ibnex_create_hcasvc_nodes(parent, hca_list->hl_hca_port_attr);
1406 	for (ii = 0; ii < hca_list->hl_nports; ii++) {
1407 		ibnex_create_port_nodes(
1408 		    parent, &hca_list->hl_port_attr[ii]);
1409 		ibnex_create_vppa_nodes(
1410 		    parent, &hca_list->hl_port_attr[ii]);
1411 	}
1412 	ibdm_ibnex_free_hca_list(hca_list);
1413 
1414 	ibnex_pseudo_initnodes();
1415 
1416 	/* Enumerate all the IOC's */
1417 	wait_time = ibdm_ibnex_get_waittime(
1418 		0, &ibnex_port_settling_time);
1419 	if (wait_time)
1420 		delay(drv_usectohz(wait_time * 1000000));
1421 
1422 	ioc_list = ibdm_ibnex_get_ioc_list(IBDM_IBNEX_NORMAL_PROBE);
1423 	ioc = ioc_list;
1424 
1425 	mutex_enter(&ibnex.ibnex_mutex);
1426 
1427 	while (ioc_list) {
1428 		if (ibnex_is_ioc_present(
1429 		    ioc_list->ioc_profile.ioc_guid) != IBNEX_SUCCESS) {
1430 			(void) ibnex_ioc_initnode(ioc_list,
1431 			    IBNEX_DEVFS_ENUMERATE, parent);
1432 		}
1433 		ioc_list = ioc_list->ioc_next;
1434 	}
1435 
1436 	/* Config IBTF Pseudo clients */
1437 	ibnex_config_pseudo_all(parent);
1438 
1439 	mutex_exit(&ibnex.ibnex_mutex);
1440 	ibdm_ibnex_free_ioc_list(ioc);
1441 
1442 	IBTF_DPRINTF_L4("ibnex", "\tconfig_all_children: End");
1443 }
1444 
1445 
1446 /*
1447  * ibnex_create_port_nodes:
1448  *	Creates a device node per each communication service defined
1449  *	in the "port-commsvc-list" property per HCA port
1450  */
1451 static void
1452 ibnex_create_port_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1453 {
1454 	int		idx;
1455 	dev_info_t	*dip;
1456 	int		rval;
1457 
1458 	mutex_enter(&ibnex.ibnex_mutex);
1459 	for (idx = 0; idx < ibnex.ibnex_num_comm_svcs; idx++) {
1460 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1461 		    idx, 0, &dip);
1462 		if (rval != IBNEX_SUCCESS) {
1463 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1464 			    IBNEX_PORT_COMMSVC_NODE, 0, &rval,
1465 			    IBNEX_DEVFS_ENUMERATE);
1466 		}
1467 	}
1468 	mutex_exit(&ibnex.ibnex_mutex);
1469 }
1470 
1471 
1472 /*
1473  * ibnex_create_vppa_nodes:
1474  *	Creates a device node per each communication service defined
1475  *	in the "vppa-commsvc-list" property and per each PKEY that
1476  *	this particular port supports and per HCA port
1477  */
1478 static void
1479 ibnex_create_vppa_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1480 {
1481 	int 		idx, ii;
1482 	int		rval;
1483 	ib_pkey_t 	pkey;
1484 	dev_info_t	*dip;
1485 
1486 	IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: Begin");
1487 
1488 	mutex_enter(&ibnex.ibnex_mutex);
1489 	if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1490 		IBTF_DPRINTF_L4("ibnex", "\tcreate_vppa_nodes: "
1491 		    "Port %d is down", port_attr->pa_port_num);
1492 		mutex_exit(&ibnex.ibnex_mutex);
1493 		return;
1494 	}
1495 	for (idx = 0; idx < ibnex.ibnex_nvppa_comm_svcs; idx++) {
1496 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1497 			pkey = port_attr->pa_pkey_tbl[ii].pt_pkey;
1498 
1499 			if (IBNEX_INVALID_PKEY(pkey)) {
1500 				continue;
1501 			}
1502 			rval = ibnex_get_dip_from_guid(
1503 			    port_attr->pa_port_guid, idx, pkey, &dip);
1504 			if (rval != IBNEX_SUCCESS) {
1505 				(void) ibnex_commsvc_initnode(parent, port_attr,
1506 					idx, IBNEX_VPPA_COMMSVC_NODE,
1507 					pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1508 				IBTF_DPRINTF_L5("ibnex", "\tcreate_vppa_nodes: "
1509 				    "commsvc_initnode failed rval %x", rval);
1510 			}
1511 		}
1512 	}
1513 	mutex_exit(&ibnex.ibnex_mutex);
1514 }
1515 
1516 
1517 /*
1518  * ibnex_create_hcasvc_nodes:
1519  *	Creates a device node per each communication service defined
1520  *	in the "port-commsvc-list" property per HCA port
1521  */
1522 static void
1523 ibnex_create_hcasvc_nodes(dev_info_t *parent, ibdm_port_attr_t *port_attr)
1524 {
1525 	int		idx;
1526 	dev_info_t	*dip;
1527 	int		rval;
1528 
1529 	mutex_enter(&ibnex.ibnex_mutex);
1530 	for (idx = 0; idx < ibnex.ibnex_nhcasvc_comm_svcs; idx++) {
1531 		rval = ibnex_get_dip_from_guid(port_attr->pa_port_guid,
1532 		    idx, 0, &dip);
1533 		if (rval != IBNEX_SUCCESS) {
1534 			(void) ibnex_commsvc_initnode(parent, port_attr, idx,
1535 			    IBNEX_HCASVC_COMMSVC_NODE, 0, &rval,
1536 			    IBNEX_DEVFS_ENUMERATE);
1537 			IBTF_DPRINTF_L5("ibnex", "create_hcasvc_nodes: "
1538 			    "commsvc_initnode failed, rval %x", rval);
1539 		}
1540 	}
1541 	mutex_exit(&ibnex.ibnex_mutex);
1542 }
1543 
1544 /*
1545  * ibnex_is_ioc_present()
1546  *	Returns IBNEX_SUCCESS if an entry found in the global linked list
1547  *	Returns IBNEX_FAILURE, if no match found
1548  */
1549 static int
1550 ibnex_is_ioc_present(ib_guid_t ioc_guid)
1551 {
1552 	ibnex_node_data_t	*head;
1553 	ibnex_ioc_node_t	*ioc;
1554 	int			ret = IBNEX_FAILURE;
1555 
1556 	IBTF_DPRINTF_L4("ibnex", "\tis_ioc_present: Begin");
1557 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
1558 
1559 	head = ibnex.ibnex_ioc_node_head;
1560 	while (head) {
1561 		ioc = &head->node_data.ioc_node;
1562 		if (ioc->ioc_guid == ioc_guid)
1563 			break;
1564 		head = head->node_next;
1565 	}
1566 	if (head)
1567 		ret = IBNEX_SUCCESS;
1568 
1569 	return (ret);
1570 }
1571 
1572 
1573 /*
1574  * ibnex_bus_unconfig()
1575  *
1576  *	Unconfigure a particular device node or all instance of a device
1577  *	driver device or all children of IBnex
1578  */
1579 static int
1580 ibnex_bus_unconfig(dev_info_t *parent,
1581     uint_t flag, ddi_bus_config_op_t op, void *device_name)
1582 {
1583 	return (ndi_busop_bus_unconfig(parent, flag, op, device_name));
1584 }
1585 
1586 
1587 /*
1588  * ibnex_config_port_node()
1589  *
1590  *	Configures a particular port / HCA  node for a particular
1591  *	communication service.
1592  *	The format of the device_name is
1593  *		ibport@<Port#>,<pkey>,<service name>
1594  *	where pkey = 0 for port communication service nodes
1595  *		  Port# = 0 for HCA_SVC communication service nodes
1596  *	Returns "dev_info_t" of the "child" node just created
1597  *	NULL when failed to enumerate the child node
1598  */
1599 static dev_info_t *
1600 ibnex_config_port_node(dev_info_t *parent, char *devname)
1601 {
1602 	int			ii, index;
1603 	int			rval;
1604 	time_t			wait_time;
1605 	uint8_t			port_num;
1606 	ib_guid_t		hca_guid, port_guid;
1607 	ib_pkey_t		pkey;
1608 	dev_info_t		*cdip;
1609 	ibdm_port_attr_t	*port_attr;
1610 	ibdm_hca_list_t		*hca_list;
1611 
1612 	IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: %s", devname);
1613 
1614 	if (ibnex_get_pkey_commsvc_index_portnum(devname,
1615 	    &index, &pkey, &port_num) != IBNEX_SUCCESS) {
1616 		IBTF_DPRINTF_L2("ibnex",
1617 		    "\tconfig_port_node: Invalid Service Name");
1618 		return (NULL);
1619 	}
1620 
1621 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1622 	if (port_num == 0) {
1623 		/*
1624 		 * Use the dummy port attribute for HCA node in hca_list
1625 		 * Note : pa_state is always IBT_PORT_ACTIVE.
1626 		 */
1627 		hca_list = ibdm_ibnex_get_hca_info_by_guid(hca_guid);
1628 		ASSERT(hca_list != NULL);
1629 		port_attr = hca_list->hl_hca_port_attr;
1630 	} else {
1631 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1632 		    hca_guid, port_num)) == NULL) {
1633 			IBTF_DPRINTF_L2("ibnex",
1634 			    "\tconfig_port_node: Port does not exist");
1635 			return (NULL);
1636 		}
1637 
1638 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1639 			wait_time = ibdm_ibnex_get_waittime(
1640 				hca_guid, &ibnex_port_settling_time);
1641 			if (wait_time) {
1642 				delay(drv_usectohz(wait_time * 1000000));
1643 			}
1644 			ibdm_ibnex_free_port_attr(port_attr);
1645 			if ((port_attr = ibdm_ibnex_probe_hcaport(
1646 			    hca_guid, port_num)) == NULL) {
1647 				return (NULL);
1648 			}
1649 		}
1650 	}
1651 
1652 	port_guid = port_attr->pa_port_guid;
1653 	mutex_enter(&ibnex.ibnex_mutex);
1654 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1655 	    &cdip)) == IBNEX_SUCCESS) {
1656 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1657 		mutex_exit(&ibnex.ibnex_mutex);
1658 		if (port_num != 0)
1659 			ibdm_ibnex_free_port_attr(port_attr);
1660 		else
1661 			ibdm_ibnex_free_hca_list(hca_list);
1662 		return (cdip);
1663 	}
1664 
1665 	if (pkey == 0 && port_num != 0) {
1666 		cdip = ibnex_commsvc_initnode(parent,
1667 		    port_attr, index, IBNEX_PORT_COMMSVC_NODE, pkey, &rval,
1668 		    IBNEX_DEVFS_ENUMERATE);
1669 		IBTF_DPRINTF_L5("ibnex",
1670 		    "\t ibnex_commsvc_initnode rval %x", rval);
1671 	} else if (pkey == 0 && port_num == 0) {
1672 		cdip = ibnex_commsvc_initnode(parent,
1673 		    port_attr, index, IBNEX_HCASVC_COMMSVC_NODE, pkey, &rval,
1674 		    IBNEX_DEVFS_ENUMERATE);
1675 		IBTF_DPRINTF_L5("ibnex",
1676 		    "\t ibnex_commsvc_initnode rval %x", rval);
1677 	} else {
1678 		if (port_attr->pa_state != IBT_PORT_ACTIVE) {
1679 			IBTF_DPRINTF_L4("ibnex", "\tconfig_port_nodes: "
1680 			    "Port %d is down", port_attr->pa_port_num);
1681 			ibdm_ibnex_free_port_attr(port_attr);
1682 			mutex_exit(&ibnex.ibnex_mutex);
1683 			return (NULL);
1684 		}
1685 		for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1686 			if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1687 				cdip = ibnex_commsvc_initnode(parent, port_attr,
1688 				    index, IBNEX_VPPA_COMMSVC_NODE,
1689 				    pkey, &rval, IBNEX_CFGADM_ENUMERATE);
1690 				IBTF_DPRINTF_L5("ibnex",
1691 				    "\t ibnex_commsvc_initnode rval %x", rval);
1692 				break;
1693 			}
1694 		}
1695 	}
1696 	mutex_exit(&ibnex.ibnex_mutex);
1697 	if (port_num != 0)
1698 		ibdm_ibnex_free_port_attr(port_attr);
1699 	else
1700 		ibdm_ibnex_free_hca_list(hca_list);
1701 	return (cdip);
1702 }
1703 
1704 
1705 /*
1706  * ibnex_config_obp_args()
1707  *	Configures a particular port node for a IP over IB communication
1708  *	service.
1709  *	The format of the input string "devname" is
1710  *		port=x,pkey=y,protocol=ip,<wanboot options>
1711  *	Thr format of the node name created here is
1712  *		ibport@<Port#>,<pkey>,<service name>
1713  *	where pkey = 0 for port communication service nodes
1714  *	Returns "dev_info_t" of the "child" node just created
1715  *	NULL when failed to enumerate the child node
1716  *
1717  */
1718 static dev_info_t *
1719 ibnex_config_obp_args(dev_info_t *parent, char *devname)
1720 {
1721 	int			ii, index;
1722 	int			rval, iter = 0;
1723 	char			*temp;
1724 	uint8_t			port_num;
1725 	ib_guid_t		hca_guid, port_guid;
1726 	ib_pkey_t		pkey;
1727 	dev_info_t		*cdip;
1728 	boolean_t		displayed = B_FALSE;
1729 	ibdm_port_attr_t	*port_attr;
1730 
1731 	IBTF_DPRINTF_L4("ibnex", "\tconfig_obp_args: %s", devname);
1732 
1733 	/* Is this OBP node for IPoIB ? */
1734 	temp = devname;
1735 	do {
1736 		temp = strstr(temp, ",protocol=ip");
1737 		if (temp == NULL)
1738 			break;
1739 
1740 		if (strlen(devname) > (int)((temp - devname) + 12)) {
1741 			if (temp[12] == ',')
1742 				break;
1743 		} else {
1744 			break;
1745 		}
1746 		temp++;
1747 	} while (temp);
1748 
1749 	if (temp == NULL)
1750 		return (NULL);
1751 	if (ibnex_prom_devname_to_pkey_n_portnum(
1752 	    devname, &pkey, &port_num) != IBNEX_SUCCESS) {
1753 		return (NULL);
1754 	}
1755 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
1756 		if (strcmp(ibnex.ibnex_vppa_comm_svc_names[index],
1757 			"ipib") == 0) {
1758 			break;
1759 		}
1760 	}
1761 
1762 	hca_guid = ibtl_ibnex_hcadip2guid(parent);
1763 	if ((port_attr = ibdm_ibnex_probe_hcaport(
1764 	    hca_guid, port_num)) == NULL) {
1765 		IBTF_DPRINTF_L2("ibnex",
1766 		    "\tconfig_port_node: Port does not exist");
1767 		return (NULL);
1768 	}
1769 
1770 	/* Wait until "port is up" */
1771 	while (port_attr->pa_state != IBT_PORT_ACTIVE) {
1772 		ibdm_ibnex_free_port_attr(port_attr);
1773 		delay(drv_usectohz(10000));
1774 		if ((port_attr = ibdm_ibnex_probe_hcaport(
1775 		    hca_guid, port_num)) == NULL) {
1776 			return (NULL);
1777 		}
1778 		if (iter++ == 400) {
1779 			if (displayed == B_FALSE) {
1780 				cmn_err(CE_NOTE, "\tWaiting for Port %d "
1781 				    "initialization", port_attr->pa_port_num);
1782 				displayed = B_TRUE;
1783 			}
1784 		}
1785 	}
1786 	IBTF_DPRINTF_L4("ibnex", "\tPort is initialized");
1787 
1788 	mutex_enter(&ibnex.ibnex_mutex);
1789 	port_guid = port_attr->pa_port_guid;
1790 	if ((rval = ibnex_get_dip_from_guid(port_guid, index, pkey,
1791 	    &cdip)) == IBNEX_SUCCESS) {
1792 		IBTF_DPRINTF_L4("ibnex", "\tconfig_port_node: Node exists");
1793 		mutex_exit(&ibnex.ibnex_mutex);
1794 		ibdm_ibnex_free_port_attr(port_attr);
1795 		return (cdip);
1796 	}
1797 	for (ii = 0; ii < port_attr->pa_npkeys; ii++) {
1798 		if (pkey == port_attr->pa_pkey_tbl[ii].pt_pkey) {
1799 			cdip = ibnex_commsvc_initnode(parent, port_attr,
1800 			    index, IBNEX_VPPA_COMMSVC_NODE, pkey, &rval,
1801 			    IBNEX_CFGADM_ENUMERATE);
1802 			IBTF_DPRINTF_L5("ibnex",
1803 			    "\t ibnex_commsvc_initnode rval %x", rval);
1804 			break;
1805 		}
1806 	}
1807 	mutex_exit(&ibnex.ibnex_mutex);
1808 
1809 	ibdm_ibnex_free_port_attr(port_attr);
1810 	return (cdip);
1811 }
1812 
1813 
1814 /*
1815  * ibnex_prom_devname_to_pkey_n_portnum()
1816  *	Parses the device node name and extracts "PKEY" and "port#"
1817  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1818  */
1819 static int
1820 ibnex_prom_devname_to_pkey_n_portnum(
1821     char *devname, ib_pkey_t *pkey, uint8_t *port)
1822 {
1823 	int	ret = IBNEX_SUCCESS;
1824 	char	*tmp, *tmp1;
1825 
1826 	if ((tmp = strstr(devname, "port=")) != NULL) {
1827 		if ((tmp = strchr(++tmp, '=')) != NULL)
1828 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
1829 				*port = ibnex_str2int(tmp, (tmp1 - tmp), &ret);
1830 	} else
1831 		ret = IBNEX_FAILURE;
1832 
1833 	if ((ret == IBNEX_SUCCESS) &&
1834 	    (tmp = strstr(devname, "pkey=")) != NULL) {
1835 		if ((tmp = strchr(++tmp, '=')) != NULL)
1836 			if ((tmp1 = strchr(++tmp, ',')) != NULL)
1837 				*pkey = ibnex_str2hex(tmp, (tmp1 - tmp), &ret);
1838 	} else
1839 		ret = IBNEX_FAILURE;
1840 
1841 	return (ret);
1842 }
1843 
1844 
1845 /*
1846  * ibnex_get_pkey_commsvc_index_portnum()
1847  *	Parses the device node name and extracts PKEY, communication
1848  *	service index & Port #.
1849  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1850  */
1851 static int
1852 ibnex_get_pkey_commsvc_index_portnum(char *device_name, int *index,
1853     ib_pkey_t *pkey, uint8_t *port_num)
1854 {
1855 	char 	*srv, **service_name, *temp;
1856 	int  	ii, ncommsvcs, ret;
1857 
1858 	if (ibnex_devname_to_portnum(device_name, port_num) !=
1859 		IBNEX_SUCCESS) {
1860 		IBTF_DPRINTF_L2("ibnex",
1861 		    "\tget_pkey_commsvc_index_portnum: Invalid PortGuid");
1862 		return (NULL);
1863 	}
1864 	srv = strchr(device_name, ',');
1865 	if (srv == 0)
1866 		return (IBNEX_FAILURE);
1867 
1868 	srv++;
1869 	temp = strchr(srv, ',');
1870 	if (temp == 0)
1871 		return (IBNEX_FAILURE);
1872 	temp++;
1873 	*pkey = ibnex_str2hex(srv, (temp - srv - 1), &ret);
1874 	if (ret != IBNEX_SUCCESS)
1875 		return (ret);
1876 
1877 	if (*pkey == 0 && *port_num != 0) {
1878 		service_name = ibnex.ibnex_comm_svc_names;
1879 		ncommsvcs = ibnex.ibnex_num_comm_svcs;
1880 	} else if (*pkey == 0 && *port_num == 0) {
1881 		service_name = ibnex.ibnex_hcasvc_comm_svc_names;
1882 		ncommsvcs = ibnex.ibnex_nhcasvc_comm_svcs;
1883 	} else {
1884 		service_name = ibnex.ibnex_vppa_comm_svc_names;
1885 		ncommsvcs = ibnex.ibnex_nvppa_comm_svcs;
1886 	}
1887 
1888 	for (ii = 0; ii < ncommsvcs; ii++) {
1889 		if (strcmp(service_name[ii], temp) == 0) {
1890 			break;
1891 		}
1892 	}
1893 	if (ii == ncommsvcs)
1894 		return (IBNEX_FAILURE);
1895 
1896 	*index = ii;
1897 	return (IBNEX_SUCCESS);
1898 }
1899 
1900 
1901 /*
1902  * ibnex_devname_to_portnum()
1903  *	Get portguid from device name
1904  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1905  */
1906 static int
1907 ibnex_devname_to_portnum(char *device_name, uint8_t *portnum)
1908 {
1909 	int	ret;
1910 	char	*temp1, *temp2;
1911 
1912 	temp1 = strchr(device_name, '@');
1913 	if (temp1 == NULL) {
1914 		return (IBNEX_FAILURE);
1915 	}
1916 	temp2 = strchr(temp1, ',');
1917 	if (temp2 == NULL)
1918 		return (IBNEX_FAILURE);
1919 	temp1++;
1920 	*portnum = ibnex_str2hex(temp1, (temp2 - temp1), &ret);
1921 	return (ret);
1922 }
1923 
1924 
1925 /*
1926  * ibnex_config_ioc_node()
1927  *	Configures one particular instance of the IOC driver.
1928  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1929  */
1930 static int
1931 ibnex_config_ioc_node(char *device_name, dev_info_t *pdip)
1932 {
1933 	int			ret;
1934 	time_t			wait_time;
1935 	ib_guid_t		iou_guid, ioc_guid;
1936 	ibdm_ioc_info_t		*ioc_info;
1937 
1938 	IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: Begin");
1939 
1940 	if (ibnex_devname_to_node_n_ioc_guids(
1941 	    device_name, &iou_guid, &ioc_guid, NULL) != IBNEX_SUCCESS) {
1942 		return (IBNEX_FAILURE);
1943 	}
1944 
1945 	wait_time = ibdm_ibnex_get_waittime(0, &ibnex_port_settling_time);
1946 	if (wait_time)
1947 		delay(drv_usectohz(wait_time * 1000000));
1948 
1949 	if ((ioc_info = ibdm_ibnex_probe_ioc(iou_guid, ioc_guid, 0)) ==
1950 	    NULL) {
1951 		ibdm_ibnex_free_ioc_list(ioc_info);
1952 		return (IBNEX_FAILURE);
1953 	}
1954 	mutex_enter(&ibnex.ibnex_mutex);
1955 	if (ibnex_is_ioc_present(ioc_guid) == IBNEX_SUCCESS) {
1956 		IBTF_DPRINTF_L4("ibnex", "\tconfig_ioc_node: IOC present");
1957 		ret = IBNEX_SUCCESS;
1958 	} else
1959 		ret = ibnex_ioc_initnode(ioc_info, IBNEX_DEVFS_ENUMERATE,
1960 		    pdip);
1961 	mutex_exit(&ibnex.ibnex_mutex);
1962 	ibdm_ibnex_free_ioc_list(ioc_info);
1963 	return (ret);
1964 }
1965 
1966 
1967 /*
1968  * ibnex_devname_to_node_n_ioc_guids()
1969  *	Get node guid and ioc guid from the device name
1970  *	Format of the device node name is:
1971  *		ioc@<IOC GUID>,<IOU GUID>
1972  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
1973  */
1974 static int
1975 ibnex_devname_to_node_n_ioc_guids(
1976     char *device_name, ib_guid_t *iou_guid, ib_guid_t *ioc_guid,
1977     char **ioc_guid_strp)
1978 {
1979 	char	*temp1, *temp;
1980 	int	len, ret;
1981 	char	*ioc_guid_str;
1982 
1983 	IBTF_DPRINTF_L4("ibnex", "\tdevname_to_node_n_ioc_guids:"
1984 	    "Device Name %s", device_name);
1985 
1986 	if ((temp = strchr(device_name, '@')) == NULL) {
1987 		return (IBNEX_FAILURE);
1988 	}
1989 	if ((temp1 = strchr(++temp, ',')) == NULL) {
1990 		return (IBNEX_FAILURE);
1991 	}
1992 	*ioc_guid = ibnex_str2hex(temp, (temp1 - temp), &ret);
1993 	if (ret == IBNEX_SUCCESS) {
1994 		if (ioc_guid_strp) {
1995 			ioc_guid_str = *ioc_guid_strp = kmem_zalloc((temp1
1996 			    - temp) + 1, KM_SLEEP);
1997 			(void) strncpy(ioc_guid_str, temp, temp1 - temp + 1);
1998 			ioc_guid_str[temp1 - temp] = '\0';
1999 		}
2000 		len = device_name + strlen(device_name) - ++temp1;
2001 		*iou_guid = ibnex_str2hex(temp1, len, &ret);
2002 	}
2003 	return (ret);
2004 }
2005 
2006 
2007 /*ARGSUSED*/
2008 /*
2009  * ibnex_ioc_initnode()
2010  *	Allocate a pathinfo node for the IOC
2011  *	Initialize the device node
2012  *	Bind driver to the node
2013  *	Update IBnex global data
2014  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY
2015  */
2016 int
2017 ibnex_ioc_initnode(ibdm_ioc_info_t *ioc_info, int flag, dev_info_t *pdip)
2018 {
2019 	int			rval;
2020 	ibnex_node_data_t	*node_data;
2021 
2022 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2023 
2024 	node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
2025 	    (void *)ioc_info, 0, 0);
2026 
2027 	/*
2028 	 * prevent any races
2029 	 * we have seen this node_data and it has been initialized
2030 	 * Note that node_dip is already NULL if unconfigure is in
2031 	 * progress.
2032 	 */
2033 	if (node_data && node_data->node_dip) {
2034 		return ((node_data->node_state == IBNEX_CFGADM_CONFIGURING) ?
2035 		    IBNEX_BUSY : IBNEX_SUCCESS);
2036 	} else if (node_data == NULL) {
2037 		node_data = ibnex_init_child_nodedata(IBNEX_IOC_NODE,
2038 		    ioc_info, 0, 0);
2039 	}
2040 
2041 	/*
2042 	 * Return EBUSY if another configure/unconfigure
2043 	 * operation is in progress
2044 	 */
2045 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2046 		return (IBNEX_BUSY);
2047 	}
2048 
2049 	ASSERT(node_data->node_state != IBNEX_CFGADM_CONFIGURED);
2050 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2051 
2052 
2053 	mutex_exit(&ibnex.ibnex_mutex);
2054 
2055 	rval = ibnex_ioc_create_pi(ioc_info, node_data, pdip);
2056 
2057 	mutex_enter(&ibnex.ibnex_mutex);
2058 	if (rval == IBNEX_SUCCESS)
2059 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2060 
2061 	return (rval);
2062 }
2063 
2064 
2065 /*
2066  * ibnex_config_pseudo_all()
2067  *	Configure all the pseudo nodes
2068  */
2069 static void
2070 ibnex_config_pseudo_all(dev_info_t *pdip)
2071 {
2072 	ibnex_node_data_t	*nodep;
2073 
2074 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2075 
2076 	for (nodep = ibnex.ibnex_pseudo_node_head;
2077 	    nodep; nodep = nodep->node_next) {
2078 		(void) ibnex_pseudo_config_one(nodep, NULL, pdip);
2079 	}
2080 }
2081 
2082 
2083 /*
2084  * ibnex_pseudo_config_one()
2085  */
2086 static int
2087 ibnex_pseudo_config_one(ibnex_node_data_t *node_data, char *caddr,
2088     dev_info_t *pdip)
2089 {
2090 	int			rval;
2091 
2092 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one(%p, %p, %p):Begin",
2093 	    node_data, caddr, pdip);
2094 
2095 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2096 
2097 	if (node_data == NULL) {
2098 		IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one: caddr = %s",
2099 		    caddr);
2100 
2101 		/*
2102 		 * This function is now called with PHCI / HCA driver
2103 		 * as parent. The format of devicename is :
2104 		 * 	<driver_name>@<driver_name>,<unit_address>
2105 		 * The "caddr" part of the devicename matches the
2106 		 * format of pseudo_node_addr.
2107 		 *
2108 		 * Use "caddr" to find a matching Pseudo node entry.
2109 		 */
2110 		node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2111 		    (void *)caddr, 0, 0);
2112 	}
2113 
2114 	/*
2115 	 * Do not enumerate nodes with ib-node-type set as "merge"
2116 	 */
2117 	if (node_data && node_data->node_data.pseudo_node.pseudo_merge_node
2118 	    == 1) {
2119 		IBTF_DPRINTF_L4("ibnex", "\tpseudo_config_one: merge_node");
2120 		return (IBNEX_FAILURE);
2121 	}
2122 
2123 	/*
2124 	 * prevent any races
2125 	 * we have seen this node_data and it has been initialized
2126 	 * Note that node_dip is already NULL if unconfigure is in
2127 	 * progress.
2128 	 */
2129 	if (node_data && node_data->node_dip) {
2130 		return ((node_data->node_state == IBNEX_CFGADM_CONFIGURING) ?
2131 		    IBNEX_BUSY : IBNEX_SUCCESS);
2132 	} else if (node_data == NULL) {
2133 		IBTF_DPRINTF_L2("ibnex", "\tpseudo_config_one: Invalid node");
2134 		return (IBNEX_FAILURE);
2135 	}
2136 
2137 	/*
2138 	 * Return EBUSY if another configure/unconfigure
2139 	 * operation is in progress
2140 	 */
2141 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
2142 		return (IBNEX_BUSY);
2143 	}
2144 
2145 	if (node_data->node_state == IBNEX_CFGADM_CONFIGURED)
2146 		return (IBNEX_SUCCESS);
2147 
2148 	/*
2149 	 * Prevent configuring pseudo nodes specifically unconfigured
2150 	 * by cfgadm. This is done by checking if this is a newly
2151 	 * created node, not yet configured by BUS_CONFIG or cfgadm
2152 	 */
2153 	if (node_data->node_data.pseudo_node.pseudo_new_node != 1)
2154 		return (IBNEX_FAILURE);
2155 	node_data->node_data.pseudo_node.pseudo_new_node = 0;
2156 
2157 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
2158 
2159 	mutex_exit(&ibnex.ibnex_mutex);
2160 	rval = ibnex_pseudo_create_pi(node_data, pdip);
2161 	mutex_enter(&ibnex.ibnex_mutex);
2162 
2163 	if (rval == IBNEX_SUCCESS)
2164 		node_data->node_state = IBNEX_CFGADM_CONFIGURED;
2165 	else {
2166 		node_data->node_dip = NULL;
2167 		node_data->node_state = IBNEX_CFGADM_UNCONFIGURED;
2168 		node_data->node_data.pseudo_node.pseudo_new_node = 1;
2169 	}
2170 
2171 	return (rval);
2172 }
2173 
2174 
2175 
2176 /*
2177  * ibnex_pseudo_mdi_config_one()
2178  *	This is similar to ibnex_pseudo_config_one. Few
2179  *	differences :
2180  *	1. parent device lock not held(no ndi_devi_enter)
2181  *	2. Called for IB Nexus as parent, not IB HCA as
2182  *	   parent.
2183  *	3. Calls mdi_vhci_bus_config()
2184  * This function skips checks for node_state, initializing
2185  * node_state, node_dip, etc. These checks and initializations
2186  * are done when BUS_CONFIG is called with PHCI as the parent.
2187  */
2188 static int
2189 ibnex_pseudo_mdi_config_one(int flag, void *devname, dev_info_t **child,
2190     char *cname, char *caddr)
2191 {
2192 	int			rval, len;
2193 	char			*node_addr;
2194 	ibnex_node_data_t	*node_data;
2195 
2196 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_mdi_config_one:"
2197 	    "cname = %s caddr = %s", cname, caddr);
2198 
2199 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2200 
2201 	len = strlen(cname) + strlen(caddr) + 2;
2202 	node_addr = (char *)kmem_alloc(len, KM_SLEEP);
2203 
2204 	(void) snprintf(node_addr, len, "%s,%s", cname, caddr);
2205 	node_data = ibnex_is_node_data_present(IBNEX_PSEUDO_NODE,
2206 	    (void *)node_addr, 0, 0);
2207 	kmem_free(node_addr, len);
2208 
2209 	if (node_data == NULL) {
2210 		IBTF_DPRINTF_L2("ibnex",
2211 		    "\tpseudo_mdi_config_one: Invalid node");
2212 		return (IBNEX_FAILURE);
2213 	}
2214 
2215 	mutex_exit(&ibnex.ibnex_mutex);
2216 	rval = mdi_vhci_bus_config(ibnex.ibnex_dip, flag, BUS_CONFIG_ONE,
2217 	    devname, child, node_data->node_data.pseudo_node.pseudo_node_addr);
2218 	mutex_enter(&ibnex.ibnex_mutex);
2219 
2220 	return (rval);
2221 }
2222 
2223 /*
2224  * ibnex_pseudo_create_pi()
2225  *	Create a path info node for each pseudo entry
2226  */
2227 int
2228 ibnex_pseudo_create_pi(ibnex_node_data_t *nodep, dev_info_t *parent)
2229 {
2230 	mdi_pathinfo_t		*pip;
2231 	int			rval, hcacnt;
2232 	dev_info_t		*hca_dip, *cdip = NULL;
2233 	ibdm_hca_list_t		*hca_list, *head;
2234 	ibnex_pseudo_node_t	*pseudo;
2235 
2236 	IBTF_DPRINTF_L4("ibnex", "\tibnex_pseudo_create_pi: %p", nodep);
2237 
2238 	pseudo = &nodep->node_data.pseudo_node;
2239 
2240 
2241 	ibdm_ibnex_get_hca_list(&hca_list, &hcacnt);
2242 
2243 	head = hca_list;
2244 
2245 	for (; hca_list != NULL; hca_list = hca_list->hl_next) {
2246 
2247 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
2248 
2249 		/*
2250 		 * For CONFIG_ONE requests through HCA dip, alloc
2251 		 * for HCA dip driving BUS_CONFIG request.
2252 		 */
2253 		if (parent != NULL && hca_dip != parent)
2254 			continue;
2255 
2256 		rval = mdi_pi_alloc(hca_dip,
2257 		    pseudo->pseudo_devi_name, pseudo->pseudo_node_addr,
2258 		    pseudo->pseudo_node_addr, 0, &pip);
2259 
2260 		if (rval != MDI_SUCCESS) {
2261 			(void) ibnex_offline_childdip(cdip);
2262 			return (IBNEX_FAILURE);
2263 		}
2264 		cdip = mdi_pi_get_client(pip);
2265 
2266 		IBTF_DPRINTF_L4("ibnex",
2267 		    "\tpseudo_create_pi: New dip %p", cdip);
2268 
2269 		nodep->node_dip = cdip;
2270 		ddi_set_parent_data(cdip, nodep);
2271 
2272 		rval = mdi_pi_online(pip, 0);
2273 
2274 		if (rval != MDI_SUCCESS) {
2275 			ddi_set_parent_data(cdip, NULL);
2276 			IBTF_DPRINTF_L2("ibnex", "\tpseudo_create_pi:"
2277 			    "mdi_pi_online: failed for pseudo dip %p,"
2278 			    " rval %d", cdip, rval);
2279 			(void) ibnex_offline_childdip(cdip);
2280 			rval = IBNEX_FAILURE;
2281 			break;
2282 		} else
2283 			rval = IBNEX_SUCCESS;
2284 
2285 		if (parent != NULL && hca_dip != parent)
2286 			break;
2287 	}
2288 	if (head)
2289 		ibdm_ibnex_free_hca_list(head);
2290 	return (rval);
2291 }
2292 
2293 
2294 /*
2295  * ibnex_ioc_create_pi()
2296  *	Create a pathinfo node for the ioc node
2297  */
2298 static int
2299 ibnex_ioc_create_pi(ibdm_ioc_info_t *ioc_info, ibnex_node_data_t *node_data,
2300     dev_info_t *pdip)
2301 {
2302 	char			ioc_guid[33], phci_guid[66];
2303 	mdi_pathinfo_t		*pip;
2304 	int			rval = DDI_FAILURE;
2305 	dev_info_t		*hca_dip, *cdip = NULL;
2306 	int			flag = 1;
2307 	ibdm_hca_list_t		*hca_list;
2308 
2309 	IBTF_DPRINTF_L4("ibnex", "\tibnex_ioc_create_pi Begin");
2310 
2311 	(void) snprintf(ioc_guid, 33, "%llX",
2312 		(longlong_t)ioc_info->ioc_profile.ioc_guid);
2313 	(void) snprintf(phci_guid, 66, "%llX,%llX",
2314 		(longlong_t)ioc_info->ioc_profile.ioc_guid,
2315 		(longlong_t)ioc_info->ioc_iou_guid);
2316 
2317 	hca_list = ioc_info->ioc_hca_list;
2318 
2319 	for (; hca_list != NULL; hca_list = hca_list->hl_next) {
2320 
2321 		hca_dip = ibtl_ibnex_hcaguid2dip(hca_list->hl_hca_guid);
2322 
2323 		/*
2324 		 * For CONFIG_ONE requests through HCA dip, alloc
2325 		 * for HCA dip driving BUS_CONFIG request.
2326 		 */
2327 		if (pdip != NULL && hca_dip != pdip)
2328 			continue;
2329 
2330 		IBTF_DPRINTF_L4("ibnex", "\tioc_create_pi "
2331 		    "hca guid %llX", hca_list->hl_hca_guid);
2332 
2333 		rval =  mdi_pi_alloc(hca_dip,
2334 		    IBNEX_IOC_CNAME, ioc_guid, phci_guid, 0, &pip);
2335 		if (rval != MDI_SUCCESS) {
2336 			(void) ibnex_offline_childdip(cdip);
2337 			return (IBNEX_FAILURE);
2338 		}
2339 		cdip = mdi_pi_get_client(pip);
2340 
2341 		IBTF_DPRINTF_L4("ibnex",
2342 		    "\tioc_create_pi: New IOC dip %p", cdip);
2343 
2344 		node_data->node_dip = cdip;
2345 		ddi_set_parent_data(cdip, node_data);
2346 
2347 		if (flag) {
2348 			if ((rval = ibnex_create_ioc_node_prop(
2349 			    ioc_info, cdip)) != IBNEX_SUCCESS) {
2350 				ibnex_delete_ioc_node_data(node_data);
2351 				ddi_prop_remove_all(cdip);
2352 				ddi_set_parent_data(cdip, NULL);
2353 
2354 				(void) ibnex_offline_childdip(cdip);
2355 				return (IBNEX_FAILURE);
2356 			}
2357 			flag = 0;
2358 		}
2359 
2360 		rval = mdi_pi_online(pip, 0);
2361 
2362 		if (rval != MDI_SUCCESS) {
2363 			ibnex_delete_ioc_node_data(node_data);
2364 			ddi_prop_remove_all(cdip);
2365 			ddi_set_parent_data(cdip, NULL);
2366 			IBTF_DPRINTF_L2("ibnex", "\tioc_create_pi: "
2367 			    "mdi_pi_online() failed ioc dip %p, rval %d",
2368 			    cdip, rval);
2369 			(void) ibnex_offline_childdip(cdip);
2370 			rval = IBNEX_FAILURE;
2371 			break;
2372 		} else
2373 			rval = IBNEX_SUCCESS;
2374 
2375 		if (pdip != NULL && hca_dip != pdip)
2376 			break;
2377 	}
2378 	return (rval);
2379 }
2380 
2381 
2382 /*
2383  * ibnex_create_ioc_node_prop()
2384  *	Create IOC device node properties
2385  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2386  */
2387 static int
2388 ibnex_create_ioc_node_prop(ibdm_ioc_info_t *ioc_info, dev_info_t *cdip)
2389 {
2390 	uint16_t		 capabilities;
2391 	ib_dm_ioc_ctrl_profile_t *ioc_profile = &ioc_info->ioc_profile;
2392 
2393 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_node_prop");
2394 
2395 	if (ibnex_create_ioc_compatible_prop(cdip,
2396 	    ioc_profile) != IBNEX_SUCCESS) {
2397 		return (IBNEX_FAILURE);
2398 	}
2399 	if ((ioc_info->ioc_iou_dc_valid) &&
2400 	    (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "iou-diagcode",
2401 	    ioc_info->ioc_iou_diagcode)) != DDI_PROP_SUCCESS) {
2402 		IBTF_DPRINTF_L2("ibnex",
2403 		    "\tcreate_ioc_node_prop: iou-diagcode create failed");
2404 		return (IBNEX_FAILURE);
2405 	}
2406 	if ((ioc_info->ioc_diagdeviceid) && (ioc_info->ioc_dc_valid)) {
2407 		if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "ioc-diagcode",
2408 		    ioc_info->ioc_diagcode) != DDI_PROP_SUCCESS) {
2409 			IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2410 			    "ioc-diagcode create failed");
2411 			return (IBNEX_FAILURE);
2412 		}
2413 	}
2414 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-queue-depth",
2415 	    ioc_profile->ioc_rdma_read_qdepth) != DDI_PROP_SUCCESS) {
2416 		IBTF_DPRINTF_L2("ibnex",
2417 		    "\tcreate_ioc_node_prop: rdma-queue-depth create failed");
2418 		return (IBNEX_FAILURE);
2419 	}
2420 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "rdma-transfer-size",
2421 	    ioc_profile->ioc_rdma_xfer_sz) != DDI_PROP_SUCCESS) {
2422 		IBTF_DPRINTF_L2("ibnex", "\tcreate_ioc_node_prop: "
2423 		    "rdma-transfer-size create failed");
2424 		return (IBNEX_FAILURE);
2425 	}
2426 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-message-size",
2427 	    ioc_profile->ioc_send_msg_sz) != DDI_PROP_SUCCESS) {
2428 		IBTF_DPRINTF_L2("ibnex",
2429 		    "\tcreate_ioc_node_prop: send-message-size create failed");
2430 		return (IBNEX_FAILURE);
2431 	}
2432 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "send-queue-depth",
2433 	    ioc_profile->ioc_send_msg_qdepth) != DDI_PROP_SUCCESS) {
2434 		IBTF_DPRINTF_L2("ibnex",
2435 		    "\tcreate_ioc_node_prop: send-queue-depth create failed");
2436 		return (IBNEX_FAILURE);
2437 	}
2438 
2439 	capabilities = (ioc_profile->ioc_ctrl_opcap_mask << 8);
2440 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip,
2441 		"capabilities", capabilities) != DDI_PROP_SUCCESS) {
2442 		IBTF_DPRINTF_L2("ibnex",
2443 		    "\tcreate_ioc_node_prop: capabilities create failed");
2444 		return (IBNEX_FAILURE);
2445 	}
2446 	if (ndi_prop_update_string(DDI_DEV_T_NONE, cdip, "id-string",
2447 	    (char *)ioc_profile->ioc_id_string) != DDI_PROP_SUCCESS) {
2448 		IBTF_DPRINTF_L2("ibnex",
2449 		    "\tcreate_ioc_node_prop: id-string failed");
2450 		return (IBNEX_FAILURE);
2451 	}
2452 
2453 	/*
2454 	 * Create properties to represent all the service entries supported
2455 	 * by the IOC. Each service entry consists of 1) Service ID (64 bits)
2456 	 * and 2) Service name (40 bytes). The service entry table is
2457 	 * represented by two properties, service-ids and service-names. The
2458 	 * service-id property is a array of int64's and service names is
2459 	 * array of strings. The first element in the "service-ids" property
2460 	 * corresponds to first string in the "service-names" and so on.
2461 	 */
2462 	if ((ioc_profile->ioc_service_entries != 0) &&
2463 	    (ibnex_create_ioc_srv_props(cdip, ioc_info) != IBNEX_SUCCESS))
2464 		return (IBNEX_FAILURE);
2465 
2466 	/* Create destination port GID properties */
2467 	if (ibnex_create_ioc_portgid_prop(cdip, ioc_info) != IBNEX_SUCCESS)
2468 		return (IBNEX_FAILURE);
2469 
2470 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol-version",
2471 	    ioc_profile->ioc_protocol_ver) != DDI_PROP_SUCCESS) {
2472 		IBTF_DPRINTF_L2("ibnex",
2473 		    "\tcreate_ioc_node_prop: protocol-version create failed");
2474 		return (IBNEX_FAILURE);
2475 	}
2476 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "protocol",
2477 	    ioc_profile->ioc_protocol) != DDI_PROP_SUCCESS) {
2478 		IBTF_DPRINTF_L2("ibnex",
2479 		    "\tcreate_ioc_node_prop: protocol create failed");
2480 		return (IBNEX_FAILURE);
2481 	}
2482 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-subclass",
2483 	    ioc_profile->ioc_io_subclass) != DDI_PROP_SUCCESS) {
2484 		IBTF_DPRINTF_L2("ibnex",
2485 		    "\tcreate_ioc_node_prop: subclass create failed");
2486 		return (IBNEX_FAILURE);
2487 	}
2488 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "io-class",
2489 	    ioc_profile->ioc_io_class) != DDI_PROP_SUCCESS) {
2490 		IBTF_DPRINTF_L2("ibnex",
2491 		    "\tcreate_ioc_node_prop: class prop create failed");
2492 		return (IBNEX_FAILURE);
2493 	}
2494 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-id",
2495 	    ioc_profile->ioc_subsys_id) != DDI_PROP_SUCCESS) {
2496 		IBTF_DPRINTF_L2("ibnex",
2497 		    "\tcreate_ioc_node_prop: subsys_id create failed");
2498 		return (IBNEX_FAILURE);
2499 	}
2500 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "subsystem-vendor-id",
2501 	    ioc_profile->ioc_subsys_vendorid) != DDI_PROP_SUCCESS) {
2502 		IBTF_DPRINTF_L2("ibnex",
2503 		    "\tcreate_ioc_node_prop: subsystem vendor create failed");
2504 		return (IBNEX_FAILURE);
2505 	}
2506 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, cdip, "ioc-guid",
2507 	    ioc_profile->ioc_guid) != DDI_PROP_SUCCESS) {
2508 		IBTF_DPRINTF_L2("ibnex",
2509 		    "\tcreate_ioc_node_prop: protocol create failed");
2510 		return (IBNEX_FAILURE);
2511 	}
2512 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-version",
2513 	    ioc_profile->ioc_device_ver) != DDI_PROP_SUCCESS) {
2514 		IBTF_DPRINTF_L2("ibnex",
2515 		    "\tcreate_ioc_node_prop: product-id create failed");
2516 		return (IBNEX_FAILURE);
2517 	}
2518 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "device-id",
2519 	    ioc_profile->ioc_deviceid) != DDI_PROP_SUCCESS) {
2520 		IBTF_DPRINTF_L2("ibnex",
2521 		    "\tcreate_ioc_node_prop: product-id create failed");
2522 		return (IBNEX_FAILURE);
2523 	}
2524 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "vendor-id",
2525 	    ioc_profile->ioc_vendorid) != DDI_PROP_SUCCESS) {
2526 		IBTF_DPRINTF_L2("ibnex",
2527 		    "\tcreate_ioc_node_prop: vendor-id create failed");
2528 		return (IBNEX_FAILURE);
2529 	}
2530 	return (IBNEX_SUCCESS);
2531 }
2532 
2533 
2534 /*
2535  * ibnex_create_ioc_portgid_prop()
2536  *	Creates "port-entries", "port-list" properties
2537  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2538  */
2539 static int
2540 ibnex_create_ioc_portgid_prop(
2541     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2542 {
2543 	uint64_t	*port_gids;
2544 	int		length, ii, jj;
2545 	int		prop_len;
2546 	ibnex_node_data_t *node_data;
2547 
2548 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_portgid_prop");
2549 
2550 	node_data = ddi_get_parent_data(cdip);
2551 	ASSERT(node_data);
2552 
2553 	prop_len = (ioc_info->ioc_nportgids != 0) ?
2554 	    (2 * ioc_info->ioc_nportgids) : 1;
2555 	length = sizeof (uint64_t) * prop_len;
2556 	port_gids = kmem_zalloc(length, KM_SLEEP);
2557 
2558 	for (ii = 0, jj = 0; ii < ioc_info->ioc_nportgids; ii++) {
2559 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_hi;
2560 		port_gids[jj++] = ioc_info->ioc_gid_list[ii].gid_dgid_lo;
2561 	}
2562 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip, "port-list",
2563 	    (int64_t *)port_gids, prop_len) != DDI_PROP_SUCCESS) {
2564 		IBTF_DPRINTF_L2("ibnex",
2565 		    "\tcreate_ioc_portgid_prop: port-list create failed");
2566 		kmem_free(port_gids, length);
2567 		return (IBNEX_FAILURE);
2568 	}
2569 	if (ndi_prop_update_int(DDI_DEV_T_NONE, cdip, "port-entries",
2570 	    ioc_info->ioc_nportgids) != DDI_PROP_SUCCESS) {
2571 		IBTF_DPRINTF_L2("ibnex",
2572 		    "\tcreate_ioc_portgid_prop: port-entries create failed");
2573 		kmem_free(port_gids, length);
2574 		return (IBNEX_FAILURE);
2575 	}
2576 
2577 	kmem_free(port_gids, length);
2578 	return (IBNEX_SUCCESS);
2579 }
2580 
2581 
2582 /*
2583  * ibnex_create_ioc_srv_props()
2584  *	Creates "service-name" and "service-id" properties
2585  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2586  */
2587 static int
2588 ibnex_create_ioc_srv_props(
2589     dev_info_t *cdip, ibdm_ioc_info_t *ioc_info)
2590 {
2591 	int			length, ii;
2592 	uint64_t		*srv_id;
2593 	char			*temp, *srv_names[IB_DM_MAX_IOCS_IN_IOU];
2594 	ib_dm_ioc_ctrl_profile_t *profile = &ioc_info->ioc_profile;
2595 	ibdm_srvents_info_t	 *srvents = ioc_info->ioc_serv;
2596 
2597 	IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props");
2598 
2599 	length = profile->ioc_service_entries * sizeof (ib_dm_srv_t);
2600 	srv_id = kmem_zalloc(length, KM_SLEEP);
2601 	temp = (char *)((char *)srv_id + (8 * profile->ioc_service_entries));
2602 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2603 		srv_names[ii] = (char *)temp + (ii * IB_DM_MAX_SVC_NAME_LEN);
2604 	}
2605 
2606 	for (ii = 0; ii < profile->ioc_service_entries; ii++) {
2607 		srv_id[ii] = srvents[ii].se_attr.srv_id;
2608 		bcopy(srvents[ii].se_attr.srv_name,
2609 		    srv_names[ii], (IB_DM_MAX_SVC_NAME_LEN - 1));
2610 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2611 		    "Service Names : %s", srv_names[ii]);
2612 		IBTF_DPRINTF_L4("ibnex", "\tcreate_ioc_srv_props "
2613 		    "Service ID : %llX", srv_id[ii]);
2614 	}
2615 
2616 	if (ndi_prop_update_int64_array(DDI_DEV_T_NONE, cdip,
2617 	    "service-id", (int64_t *)srv_id,
2618 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2619 		IBTF_DPRINTF_L2("ibnex",
2620 		    "\tcreate_ioc_srv_props: service-id create failed");
2621 		kmem_free(srv_id, length);
2622 		return (IBNEX_FAILURE);
2623 	}
2624 
2625 	if (ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2626 	    "service-name", (char **)srv_names,
2627 	    profile->ioc_service_entries) != DDI_PROP_SUCCESS) {
2628 		IBTF_DPRINTF_L2("ibnex",
2629 		    "\tcreate_ioc_srv_props: service-name create failed");
2630 		kmem_free(srv_id, length);
2631 		return (IBNEX_FAILURE);
2632 	}
2633 	kmem_free(srv_id, length);
2634 	return (IBNEX_SUCCESS);
2635 }
2636 
2637 
2638 /*
2639  * ibnex_create_ioc_compatible_prop()
2640  *	Creates "compatible" property values
2641  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2642  */
2643 static int
2644 ibnex_create_ioc_compatible_prop(
2645     dev_info_t *cdip, ib_dm_ioc_ctrl_profile_t *ioc_profile)
2646 {
2647 	char		*temp;
2648 	int		rval, ii;
2649 	char		*compatible[IBNEX_MAX_COMPAT_NAMES];
2650 
2651 	/*
2652 	 * Initialize the "compatible" property string as below:
2653 	 * Compatible Strings :
2654 	 *	1. ib.V<vid>P<pid>S<subsys vid>s<subsys id>v<ver>
2655 	 *	2. ib.V<vid>P<pid>S<subsys vid>s<subsys id>
2656 	 *	3. ib.V<vid>P<pid>v<ver>
2657 	 *	4. ib.V<vid>P<pid>
2658 	 *	5. ib.C<Class>c<Subclass>p<protocol>r<protocol ver>
2659 	 *	6. ib.C<Class>c<Subclass>p<protocol>
2660 	 *
2661 	 * Note:
2662 	 *	All leading zeros must be present
2663 	 *	All numeric values must specified in hex without prefix "0x"
2664 	 */
2665 
2666 	temp = kmem_alloc(IBNEX_MAX_COMPAT_PROP_SZ, KM_SLEEP);
2667 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2668 		compatible[ii] = temp + (ii * IBNEX_MAX_COMPAT_LEN);
2669 
2670 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
2671 	    "ib.V%06xP%08xS%06xs%08xv%04x",
2672 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2673 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id,
2674 	    ioc_profile->ioc_device_ver);
2675 
2676 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
2677 	    "ib.V%06xP%08xS%06xs%08x",
2678 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2679 	    ioc_profile->ioc_subsys_vendorid, ioc_profile->ioc_subsys_id);
2680 
2681 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
2682 	    "ib.V%06xP%08xv%04x",
2683 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid,
2684 	    ioc_profile->ioc_device_ver);
2685 
2686 	(void) snprintf(compatible[3], IBNEX_MAX_COMPAT_LEN,
2687 	    "ib.V%06xP%08x",
2688 	    ioc_profile->ioc_vendorid, ioc_profile->ioc_deviceid);
2689 
2690 	(void) snprintf(compatible[4], IBNEX_MAX_COMPAT_LEN,
2691 	    "ib.C%04xc%04xp%04xr%04x",
2692 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2693 	    ioc_profile->ioc_protocol, ioc_profile->ioc_protocol_ver);
2694 
2695 	(void) snprintf(compatible[5], IBNEX_MAX_COMPAT_LEN,
2696 	    "ib.C%04xc%04xp%04x",
2697 	    ioc_profile->ioc_io_class, ioc_profile->ioc_io_subclass,
2698 	    ioc_profile->ioc_protocol);
2699 	for (ii = 0; ii < IBNEX_MAX_COMPAT_NAMES; ii++)
2700 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[ii]);
2701 
2702 	/* Create the compatible property for child cdip */
2703 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, cdip,
2704 	    "compatible", (char **)compatible, IBNEX_MAX_COMPAT_NAMES);
2705 
2706 	if (rval != DDI_PROP_SUCCESS) {
2707 		IBTF_DPRINTF_L2("ibnex", "\tcompatible prop_create failed");
2708 		kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2709 		return (IBNEX_FAILURE);
2710 	}
2711 
2712 	kmem_free(temp, IBNEX_MAX_COMPAT_PROP_SZ);
2713 	return (IBNEX_SUCCESS);
2714 }
2715 
2716 
2717 static void
2718 ibnex_ioc_node_cleanup()
2719 {
2720 	ibnex_node_data_t *node, *delete;
2721 
2722 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2723 	for (node = ibnex.ibnex_ioc_node_head; node; ) {
2724 		delete = node;
2725 		node = node->node_next;
2726 		mutex_exit(&ibnex.ibnex_mutex);
2727 		ibnex_delete_ioc_node_data(delete);
2728 		mutex_enter(&ibnex.ibnex_mutex);
2729 	}
2730 }
2731 
2732 /*
2733  * ibnex_delete_ioc_node_data()
2734  *	Delete IOC node from the list
2735  */
2736 static void
2737 ibnex_delete_ioc_node_data(ibnex_node_data_t *node)
2738 {
2739 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data:");
2740 
2741 	mutex_enter(&ibnex.ibnex_mutex);
2742 	if ((node->node_next == NULL) && (node->node_prev == NULL)) {
2743 		ASSERT(ibnex.ibnex_ioc_node_head == node);
2744 		ibnex.ibnex_ioc_node_head = NULL;
2745 	} else if (node->node_next == NULL)
2746 		node->node_prev->node_next = NULL;
2747 	else if (node->node_prev == NULL) {
2748 		node->node_next->node_prev = NULL;
2749 		ibnex.ibnex_ioc_node_head = node->node_next;
2750 	} else {
2751 		node->node_prev->node_next = node->node_next;
2752 		node->node_next->node_prev = node->node_prev;
2753 	}
2754 	IBTF_DPRINTF_L4("ibnex", "\tdelete_ioc_node_data: head %p",
2755 	    ibnex.ibnex_ioc_node_head);
2756 	mutex_exit(&ibnex.ibnex_mutex);
2757 	kmem_free(node, sizeof (ibnex_node_data_t));
2758 }
2759 
2760 
2761 /*
2762  * ibnex_dm_callback()
2763  *
2764  *	This routine is registered with the IBDM during IB nexus attach. It
2765  *	is called by the IBDM module when it discovers
2766  *		New HCA port
2767  *		HCA port removal
2768  *		New HCA added
2769  *		HCA removed
2770  */
2771 void
2772 ibnex_dm_callback(void *arg, ibdm_events_t flag)
2773 {
2774 	char	hca_guid[IBNEX_HCAGUID_STRSZ];
2775 	ibdm_ioc_info_t	*ioc_list, *ioc;
2776 	ibnex_node_data_t	*node_data;
2777 
2778 	IBTF_DPRINTF_L4("ibnex", "\tdm_callback: attr %p event %x", arg, flag);
2779 
2780 	switch (flag) {
2781 	case IBDM_EVENT_HCA_ADDED:
2782 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2783 		    (*(longlong_t *)arg));
2784 		/* Create a devctl minor node for the HCA's port  */
2785 		if (ddi_create_minor_node(ibnex.ibnex_dip, hca_guid, S_IFCHR,
2786 		    ddi_get_instance(ibnex.ibnex_dip),
2787 		    DDI_NT_IB_ATTACHMENT_POINT, 0) != DDI_SUCCESS) {
2788 			IBTF_DPRINTF_L4("ibnex", "\tdm_callback: failed to "
2789 			    "create minor node for port w/ guid %s", hca_guid);
2790 		}
2791 
2792 		break;
2793 
2794 	case IBDM_EVENT_HCA_REMOVED:
2795 		(void) snprintf(hca_guid, IBNEX_HCAGUID_STRSZ, "%llX",
2796 		    (*(longlong_t *)arg));
2797 		ddi_remove_minor_node(ibnex.ibnex_dip, hca_guid);
2798 		break;
2799 
2800 	case IBDM_EVENT_IOC_PROP_UPDATE:
2801 		ioc = ioc_list = (ibdm_ioc_info_t *)arg;
2802 		if (ioc_list == NULL)
2803 			break;
2804 
2805 		mutex_enter(&ibnex.ibnex_mutex);
2806 		while (ioc_list) {
2807 			if ((node_data = ibnex_is_node_data_present(
2808 			    IBNEX_IOC_NODE, ioc_list, 0, 0)) != NULL &&
2809 			    node_data->node_dip != NULL) {
2810 				ibnex_update_prop(node_data, ioc_list);
2811 			}
2812 			ioc_list = ioc_list->ioc_next;
2813 		}
2814 		mutex_exit(&ibnex.ibnex_mutex);
2815 		ibdm_ibnex_free_ioc_list(ioc);
2816 	}
2817 }
2818 
2819 
2820 /*
2821  * ibnex_get_dip_from_guid()
2822  *
2823  *	Searches the linked list of the port nodes and returns the dip for
2824  *	the of the Port / Node guid requested.
2825  *	Returns NULL if not found
2826  */
2827 int
2828 ibnex_get_dip_from_guid(ib_guid_t guid, int index, ib_pkey_t pkey,
2829     dev_info_t **dip)
2830 {
2831 	int			node_index;
2832 	ib_guid_t		node_guid;
2833 	ib_pkey_t		node_pkey;
2834 	ibnex_node_data_t	*node_data;
2835 
2836 	IBTF_DPRINTF_L4("ibnex",
2837 	    "\tget_dip_from_guid: guid = %llX", guid);
2838 
2839 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
2840 	/* Search for a matching entry in internal lists */
2841 	node_data = ibnex.ibnex_port_node_head;
2842 	while (node_data) {
2843 		node_guid = node_data->node_data.port_node.port_guid;
2844 		node_index = node_data->node_data.port_node.port_commsvc_idx;
2845 		node_pkey = node_data->node_data.port_node.port_pkey;
2846 		if ((node_guid == guid) && (index == node_index) &&
2847 		    (node_pkey == pkey)) {
2848 			break;
2849 		}
2850 		node_data = node_data->node_next;
2851 	}
2852 
2853 	/* matching found with a valid dip */
2854 	if (node_data && node_data->node_dip) {
2855 		*dip = node_data->node_dip;
2856 		return (IBNEX_SUCCESS);
2857 	} else if (node_data && !node_data->node_dip) {	/* dip is invalid */
2858 		*dip = NULL;
2859 		return (IBNEX_SUCCESS);
2860 	}
2861 
2862 	/* no match found */
2863 	*dip = NULL;
2864 	return (IBNEX_FAILURE);
2865 }
2866 
2867 
2868 /*
2869  * ibnex_comm_svc_init()
2870  *	Read the property and cache the values in the global
2871  *	structure.
2872  *	Check for max allowed length (4 bytes) of service name
2873  *	(each element of the property)
2874  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
2875  */
2876 static ibnex_rval_t
2877 ibnex_comm_svc_init(char *property, ibnex_node_type_t type)
2878 {
2879 	int		i, len, count;
2880 	int		ncomm_svcs;
2881 	char		**comm_svcp;
2882 	char		**servicep = NULL;
2883 	uint_t		nservices = 0;
2884 	int			*valid = NULL;
2885 
2886 	IBTF_DPRINTF_L4("ibnex", "\tcomm_svc_init : %s property, type = %x",
2887 	    property, type);
2888 
2889 	/* lookup the string array property */
2890 	if (ddi_prop_lookup_string_array(DDI_DEV_T_ANY, ibnex.ibnex_dip,
2891 	    DDI_PROP_DONTPASS, property, &servicep, &nservices) !=
2892 	    DDI_PROP_SUCCESS) {
2893 		IBTF_DPRINTF_L2("ibnex", "\t%s property undefined", property);
2894 		return (IBNEX_SUCCESS);
2895 	}
2896 
2897 	if (nservices)
2898 		valid = kmem_zalloc(nservices * sizeof (int), KM_SLEEP);
2899 
2900 
2901 	/* first read the file to get a count of valid service entries */
2902 	for (ncomm_svcs = 0, count = 0; count < nservices; count++) {
2903 		int j;
2904 
2905 		len = strlen(servicep[count]);
2906 		if (len == 0 || len > 4) {
2907 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
2908 			    "Service name %s invalid : length %d",
2909 			    servicep[count], len);
2910 			continue;
2911 		}
2912 		if (ibnex_unique_svcname(servicep[count]) != IBNEX_SUCCESS) {
2913 			IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
2914 			    "Service name %s invalid : Not unique",
2915 			    servicep[count]);
2916 			continue;
2917 		}
2918 
2919 		/*
2920 		 * ibnex_unique_svcname checks for uniqueness in service names
2921 		 * communication services fully initialized. Check uniqueness
2922 		 * in service names currently initialized.
2923 		 */
2924 		for (j = 0; j < count; j++)
2925 			if (valid[j] && strncmp(servicep[count],
2926 			    servicep[j], 4) == 0) {
2927 				IBTF_DPRINTF_L2("ibnex", "\tcomm_svc_init : "
2928 				    "Service name %s invalid : Not unique",
2929 				    servicep[count]);
2930 					continue;
2931 			}
2932 
2933 		valid[count] = 1;
2934 		ncomm_svcs++;
2935 	}
2936 
2937 	/* if no valid entries found, bailout */
2938 	if (nservices == 0 || ncomm_svcs == 0) {
2939 		IBTF_DPRINTF_L4("ibnex", "\tNo %s entries found", property);
2940 		ddi_prop_free(servicep); /* free the property */
2941 		if (valid)
2942 			kmem_free(valid, nservices * sizeof (int));
2943 		return (IBNEX_SUCCESS);
2944 	}
2945 
2946 	comm_svcp = kmem_zalloc((ncomm_svcs * sizeof (char *)), KM_SLEEP);
2947 	if (type == IBNEX_PORT_COMMSVC_NODE) {
2948 		ibnex.ibnex_comm_svc_names = comm_svcp;
2949 		ibnex.ibnex_num_comm_svcs = ncomm_svcs;
2950 	} else if (type == IBNEX_VPPA_COMMSVC_NODE) {
2951 		ibnex.ibnex_vppa_comm_svc_names = comm_svcp;
2952 		ibnex.ibnex_nvppa_comm_svcs = ncomm_svcs;
2953 	} else if (type == IBNEX_HCASVC_COMMSVC_NODE) {
2954 		ibnex.ibnex_hcasvc_comm_svc_names = comm_svcp;
2955 		ibnex.ibnex_nhcasvc_comm_svcs = ncomm_svcs;
2956 	}
2957 
2958 	/* copy the services into an array of strings */
2959 	for (i = 0, count = 0; count < nservices; count++) {
2960 		if (valid[count] == 0)	/* Skip invalid ones */
2961 			continue;
2962 		comm_svcp[i] = kmem_alloc(len + 1, KM_SLEEP);
2963 		(void) strcpy(comm_svcp[i], servicep[count]);
2964 		IBTF_DPRINTF_L4("ibnex",
2965 		    "\t\tService [%d]: %s", i, comm_svcp[i]);
2966 		++i;
2967 	}
2968 	ddi_prop_free(servicep);
2969 	kmem_free(valid, nservices * sizeof (int));
2970 	return (IBNEX_SUCCESS);
2971 }
2972 
2973 
2974 /*
2975  * ibnex_comm_svc_fini()
2976  *	Deallocate all the memory allocated for the communication
2977  *	service arrays.
2978  */
2979 static void
2980 ibnex_comm_svc_fini()
2981 {
2982 	int	index;
2983 
2984 	for (index = 0; index < ibnex.ibnex_num_comm_svcs; index++) {
2985 		kmem_free(ibnex.ibnex_comm_svc_names[index],
2986 		    (strlen(ibnex.ibnex_comm_svc_names[index]) + 1));
2987 	}
2988 	if (ibnex.ibnex_comm_svc_names) {
2989 		kmem_free(ibnex.ibnex_comm_svc_names,
2990 		    ibnex.ibnex_num_comm_svcs * sizeof (char *));
2991 	}
2992 	for (index = 0; index < ibnex.ibnex_nvppa_comm_svcs; index++) {
2993 		kmem_free(ibnex.ibnex_vppa_comm_svc_names[index],
2994 		    strlen(ibnex.ibnex_vppa_comm_svc_names[index]) +1);
2995 	}
2996 	if (ibnex.ibnex_vppa_comm_svc_names) {
2997 		kmem_free(ibnex.ibnex_vppa_comm_svc_names,
2998 		    ibnex.ibnex_nvppa_comm_svcs * sizeof (char *));
2999 	}
3000 	for (index = 0; index < ibnex.ibnex_nhcasvc_comm_svcs; index++) {
3001 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names[index],
3002 		    strlen(ibnex.ibnex_hcasvc_comm_svc_names[index]) +1);
3003 	}
3004 	if (ibnex.ibnex_hcasvc_comm_svc_names) {
3005 		kmem_free(ibnex.ibnex_hcasvc_comm_svc_names,
3006 		    ibnex.ibnex_nhcasvc_comm_svcs * sizeof (char *));
3007 	}
3008 	ibnex.ibnex_comm_svc_names = NULL;
3009 	ibnex.ibnex_num_comm_svcs = 0;
3010 	ibnex.ibnex_vppa_comm_svc_names = NULL;
3011 	ibnex.ibnex_nvppa_comm_svcs = 0;
3012 	ibnex.ibnex_hcasvc_comm_svc_names = NULL;
3013 	ibnex.ibnex_nhcasvc_comm_svcs = 0;
3014 }
3015 
3016 
3017 /*
3018  * ibnex_commsvc_initnode()
3019  *	This routine is specific to port/VPPA node creation
3020  *	Creates a device node for the comm service specified by commsvc_index
3021  *	Creates all the device node properties
3022  *	Allocates and initializes the node specific data
3023  *	Binds the device driver of the device node
3024  *	Returns "dev_info_t" of the child node or NULL in case of failure
3025  *	Sets IBNEX_SUCCESS/IBNEX_FAILURE/IBNEX_BUSY in "rval" to reflect
3026  *	if the operation was successful, failed or was not performed.
3027  */
3028 dev_info_t *
3029 ibnex_commsvc_initnode(dev_info_t *parent, ibdm_port_attr_t *port_attr,
3030     int index, int node_type, ib_pkey_t pkey, int *rval, int flag)
3031 {
3032 	int			ret;
3033 	char			*svcname;
3034 	dev_info_t		*cdip;
3035 	ibnex_node_data_t	*node_data;
3036 
3037 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3038 
3039 	*rval = IBNEX_SUCCESS;
3040 
3041 	/*
3042 	 * prevent any races
3043 	 * we have seen this node_data and it has been initialized
3044 	 * Note that node_dip is already NULL if unconfigure is in
3045 	 * progress.
3046 	 */
3047 	node_data = ibnex_is_node_data_present(node_type, (void *)port_attr,
3048 	    index, pkey);
3049 	if (node_data && node_data->node_dip) {
3050 		/*
3051 		 * Return NULL if another configure
3052 		 * operation is in progress
3053 		 */
3054 		if (node_data->node_state == IBNEX_CFGADM_CONFIGURING) {
3055 			*rval = IBNEX_BUSY;
3056 			return (NULL);
3057 		} else {
3058 			return (node_data->node_dip);
3059 		}
3060 	} else if (node_data == NULL) {
3061 		/* allocate a new ibnex_node_data_t */
3062 		node_data = ibnex_init_child_nodedata(node_type, port_attr,
3063 		    index, pkey);
3064 	}
3065 
3066 	/*
3067 	 * Return NULL if another unconfigure operation is in progress
3068 	 */
3069 	if (node_data->node_state == IBNEX_CFGADM_UNCONFIGURING) {
3070 		*rval = IBNEX_BUSY;
3071 		return (NULL);
3072 	}
3073 
3074 	ASSERT(node_data->node_state != IBNEX_CFGADM_CONFIGURED);
3075 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3076 
3077 	ndi_devi_alloc_sleep(parent,
3078 	    IBNEX_IBPORT_CNAME, (pnode_t)DEVI_SID_NODEID, &cdip);
3079 
3080 	node_data->node_dip	= cdip;
3081 	ddi_set_parent_data(cdip, node_data);
3082 	mutex_exit(&ibnex.ibnex_mutex);
3083 
3084 	switch (node_type) {
3085 		case IBNEX_VPPA_COMMSVC_NODE :
3086 			svcname = ibnex.ibnex_vppa_comm_svc_names[index];
3087 			break;
3088 		case IBNEX_HCASVC_COMMSVC_NODE :
3089 			svcname = ibnex.ibnex_hcasvc_comm_svc_names[index];
3090 			break;
3091 		case IBNEX_PORT_COMMSVC_NODE :
3092 			svcname = ibnex.ibnex_comm_svc_names[index];
3093 			break;
3094 		default :
3095 			IBTF_DPRINTF_L2("ibnex", "\tcommsvc_initnode:"
3096 			    "\tInvalid Node type");
3097 			*rval = IBNEX_FAILURE;
3098 			ibnex_delete_port_node_data(node_data);
3099 			ddi_prop_remove_all(cdip);
3100 			ddi_set_parent_data(cdip, NULL);
3101 			(void) ndi_devi_free(cdip);
3102 			mutex_enter(&ibnex.ibnex_mutex);
3103 			return (NULL);
3104 	}
3105 
3106 	if (ibnex_create_port_node_prop(port_attr, cdip, svcname, pkey) ==
3107 	    IBNEX_SUCCESS) {
3108 		if (flag == IBNEX_DEVFS_ENUMERATE)
3109 			ret = ndi_devi_bind_driver(cdip, 0);
3110 		else
3111 			ret = ndi_devi_online(cdip, 0);
3112 		if (ret == NDI_SUCCESS) {
3113 			mutex_enter(&ibnex.ibnex_mutex);
3114 			node_data->node_state	= IBNEX_CFGADM_CONFIGURED;
3115 			return (cdip);
3116 		}
3117 	}
3118 	*rval = IBNEX_FAILURE;
3119 	ibnex_delete_port_node_data(node_data);
3120 	ddi_prop_remove_all(cdip);
3121 	ddi_set_parent_data(cdip, NULL);
3122 	(void) ndi_devi_free(cdip);
3123 	mutex_enter(&ibnex.ibnex_mutex);
3124 	IBTF_DPRINTF_L4("ibnex", "\tcommsvc_initnode: failure exit");
3125 	return (NULL);
3126 }
3127 
3128 
3129 /*
3130  * ibnex_create_port_node_prop()
3131  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3132  */
3133 static int
3134 ibnex_create_port_node_prop(ibdm_port_attr_t *port_attr,
3135     dev_info_t *child_dip, char *srvname, ib_pkey_t pkey)
3136 {
3137 	if (ibnex_create_port_compatible_prop(child_dip,
3138 	    srvname, port_attr) != DDI_PROP_SUCCESS) {
3139 		IBTF_DPRINTF_L2("ibnex",
3140 		    "\tcreate_port_node_prop: compatible update failed");
3141 		return (IBNEX_FAILURE);
3142 	}
3143 	if ((pkey != 0) && (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3144 	    "port-pkey", pkey) != DDI_PROP_SUCCESS)) {
3145 		IBTF_DPRINTF_L2("ibnex",
3146 		    "\tcreate_port_node_prop: port-num update failed");
3147 		return (IBNEX_FAILURE);
3148 	}
3149 
3150 	/*
3151 	 * For HCA_SVC device nodes, port_num will be 0.
3152 	 * Do not create the "port-number" & "port-guid" properties.
3153 	 */
3154 	if (port_attr->pa_port_num != 0) {
3155 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3156 			"port-number", port_attr->pa_port_num) !=
3157 		    DDI_PROP_SUCCESS) {
3158 			IBTF_DPRINTF_L2("ibnex",
3159 			    "\tcreate_port_node_prop: port-num update failed");
3160 			return (IBNEX_FAILURE);
3161 		}
3162 		if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3163 			"port-guid", port_attr->pa_port_guid) !=
3164 		    DDI_PROP_SUCCESS) {
3165 			IBTF_DPRINTF_L2("ibnex",
3166 			    "\tcreate_port_node_prop: port-guid update failed");
3167 			return (IBNEX_FAILURE);
3168 		}
3169 	} else {
3170 		ibdm_hca_list_t	*hca_list;
3171 
3172 		/*
3173 		 * HCA_SVC nodes require "num-ports" & "port-guids"
3174 		 * properties.
3175 		 *
3176 		 * To create the num-ports & port-guids attribute :
3177 		 * 1. Get HCA list (ibdm_ibnex_get_hca_info_by_guid)
3178 		 * 2. Form the array of port GUIDs.
3179 		 */
3180 		if ((hca_list = ibdm_ibnex_get_hca_info_by_guid(
3181 		    port_attr->pa_hca_guid)) == NULL) {
3182 			IBTF_DPRINTF_L2("ibnex",
3183 			    "\tcreate_port_node_prop: hca_info_by_guid failed");
3184 			return (IBNEX_FAILURE);
3185 		}
3186 
3187 		if (hca_list->hl_nports != 0) {
3188 			ib_guid_t	*port_guids;
3189 			uint8_t		portnum;
3190 
3191 			ASSERT(hca_list->hl_port_attr != NULL);
3192 
3193 			port_guids = kmem_zalloc(
3194 			    hca_list->hl_nports * sizeof (ib_guid_t),
3195 			    KM_SLEEP);
3196 
3197 			for (portnum = 0; portnum < hca_list->hl_nports;
3198 			    portnum++) {
3199 				port_guids[portnum] = (hca_list->
3200 				    hl_port_attr[portnum]).pa_port_guid;
3201 			}
3202 
3203 			if (ndi_prop_update_int64_array(DDI_DEV_T_NONE,
3204 			    child_dip, "port-guids", (int64_t *)port_guids,
3205 			    hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3206 				IBTF_DPRINTF_L2("ibnex",
3207 				    "\tcreate_port_node_prop: port-guids "
3208 				    "create failed");
3209 				kmem_free(port_guids, hca_list->hl_nports *
3210 				    sizeof (ib_guid_t));
3211 				ibdm_ibnex_free_hca_list(hca_list);
3212 				return (IBNEX_FAILURE);
3213 			}
3214 			kmem_free(port_guids, hca_list->hl_nports *
3215 			    sizeof (ib_guid_t));
3216 		}
3217 
3218 		if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3219 			"num-ports", hca_list->hl_nports) != DDI_PROP_SUCCESS) {
3220 			IBTF_DPRINTF_L2("ibnex",
3221 			    "\tcreate_port_node_prop: num-ports update failed");
3222 			ibdm_ibnex_free_hca_list(hca_list);
3223 			return (IBNEX_FAILURE);
3224 		}
3225 		ibdm_ibnex_free_hca_list(hca_list);
3226 	}
3227 
3228 	if (ndi_prop_update_int64(DDI_DEV_T_NONE, child_dip,
3229 		"hca-guid", port_attr->pa_hca_guid) != DDI_PROP_SUCCESS) {
3230 		IBTF_DPRINTF_L2("ibnex",
3231 		    "\tcreate_port_node_prop: hca-guid update failed");
3232 		return (IBNEX_FAILURE);
3233 	}
3234 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3235 		"product-id", port_attr->pa_productid) != DDI_PROP_SUCCESS) {
3236 		IBTF_DPRINTF_L2("ibnex",
3237 		    "\tcreate_port_node_prop: product-id update failed");
3238 		return (IBNEX_FAILURE);
3239 	}
3240 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip,
3241 		"vendor-id", port_attr->pa_vendorid) != DDI_PROP_SUCCESS) {
3242 		IBTF_DPRINTF_L2("ibnex",
3243 		    "\tcreate_port_node_prop: vendor-id update failed");
3244 		return (IBNEX_FAILURE);
3245 	}
3246 	if (ndi_prop_update_int(DDI_DEV_T_NONE, child_dip, "device-version",
3247 	    port_attr->pa_dev_version) != DDI_PROP_SUCCESS) {
3248 		IBTF_DPRINTF_L2("ibnex",
3249 		    "\tcreate_port_node_prop: device-version update failed");
3250 		return (IBNEX_FAILURE);
3251 	}
3252 	return (IBNEX_SUCCESS);
3253 }
3254 
3255 
3256 /*
3257  * ibnex_str2int()
3258  *	Utility function that converts a string of length  "len" to
3259  *	integer.
3260  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3261  */
3262 static int
3263 ibnex_str2int(char *c, int len, int *ret)
3264 {
3265 	int intval = 0, ii;
3266 
3267 	IBTF_DPRINTF_L4("ibnex", "\tstr2int: Int string %s..", c);
3268 	*ret = IBNEX_SUCCESS;
3269 	for (ii = 0; ii < len; ii ++) {
3270 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3271 			intval = intval * 10 +c[ii] - '0';
3272 		else {
3273 			IBTF_DPRINTF_L2("ibnex",
3274 			    "\tstr2int: Invalid integer string %s..", c);
3275 			*ret = IBNEX_FAILURE;
3276 			break;
3277 		}
3278 	}
3279 
3280 	return (intval);
3281 }
3282 
3283 
3284 /*
3285  * ibnex_str2hex()
3286  *	Utility functions that converts a string of length  "len" to
3287  *	hex value. Note. This function does not handle strings which
3288  *	string length more than 8 bytes.
3289  *
3290  */
3291 uint64_t
3292 ibnex_str2hex(char *c, int len, int *ret)
3293 {
3294 	uint64_t hex = 0, ii;
3295 
3296 	*ret = IBNEX_SUCCESS;
3297 	for (ii = 0; ii < len; ii ++) {
3298 		hex = (ii == 0) ? hex : (hex << 4);
3299 		if ((c[ii] >= '0') && (c[ii] <= '9'))
3300 			hex |= c[ii] - '0';
3301 		else if ((c[ii] >= 'a') && (c[ii] <= 'f'))
3302 			hex |= c[ii] - 'a' + 10;
3303 		else if ((c[ii] >= 'A') && (c[ii] <= 'F'))
3304 			hex |= c[ii] - 'A' + 10;
3305 		else {
3306 			IBTF_DPRINTF_L2("ibnex",
3307 			    "\tstr2hex: Invalid integer string");
3308 			*ret = IBNEX_FAILURE;
3309 			break;
3310 		}
3311 	}
3312 
3313 	return (hex);
3314 }
3315 
3316 
3317 /*
3318  * ibnex_create_port_compatible_prop()
3319  *	Creates 'Compatibility' property for port / HCA_SVC device nodes
3320  *	Returns IBNEX_SUCCESS/IBNEX_FAILURE
3321  */
3322 static int
3323 ibnex_create_port_compatible_prop(dev_info_t *child_dip,
3324     char *comm_svcp, ibdm_port_attr_t *port_attr)
3325 {
3326 	int 	rval, i;
3327 	char	*temp;
3328 	char	*compatible[IBNEX_MAX_IBPORT_COMPAT_NAMES];
3329 
3330 	IBTF_DPRINTF_L4("ibnex", "\tcreate_port_compatible_prop: Begin");
3331 	/*
3332 	 * Initialize the "compatible" property string as below:
3333 	 * Compatible Strings :
3334 	 * 1. ib.V<vid>P<pid>v<revision>.<service name>.
3335 	 * 2. ib.V<vid>P<pid>.<service name>.
3336 	 * 3. ib.<service name>
3337 	 * Leading zeros must be present
3338 	 */
3339 	temp = kmem_alloc(IBNEX_MAX_IBPORT_COMPAT_PROP_SZ, KM_SLEEP);
3340 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++) {
3341 		compatible[i] = temp + (i * IBNEX_MAX_COMPAT_LEN);
3342 	}
3343 
3344 	(void) snprintf(compatible[0], IBNEX_MAX_COMPAT_LEN,
3345 	    "ib.V%06xP%08xv%04x.%s",
3346 	    port_attr->pa_vendorid, port_attr->pa_productid,
3347 	    port_attr->pa_dev_version, comm_svcp);
3348 	(void) snprintf(compatible[1], IBNEX_MAX_COMPAT_LEN,
3349 	    "ib.V%06xP%08x.%s",
3350 	    port_attr->pa_vendorid, port_attr->pa_productid,
3351 	    comm_svcp);
3352 	(void) snprintf(compatible[2], IBNEX_MAX_COMPAT_LEN,
3353 	    "ib.%s", comm_svcp);
3354 
3355 	for (i = 0; i < IBNEX_MAX_IBPORT_COMPAT_NAMES; i++)
3356 		IBTF_DPRINTF_L4("ibnex", "\tcompatible: %s", compatible[i]);
3357 
3358 	rval = ndi_prop_update_string_array(DDI_DEV_T_NONE, child_dip,
3359 	    "compatible", (char **)compatible, IBNEX_MAX_IBPORT_COMPAT_NAMES);
3360 
3361 	if (rval != DDI_PROP_SUCCESS) {
3362 		kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3363 		return (IBNEX_FAILURE);
3364 	}
3365 	kmem_free(temp, IBNEX_MAX_IBPORT_COMPAT_PROP_SZ);
3366 	return (IBNEX_SUCCESS);
3367 }
3368 
3369 
3370 /*
3371  * ibnex_delete_port_node_data()
3372  *	Delete the parent private node data from the linked list
3373  *	Deallocate the memory of the port/ioc attributes
3374  *	Deallocate the memory of the node data
3375  */
3376 static void
3377 ibnex_delete_port_node_data(ibnex_node_data_t *node)
3378 {
3379 	mutex_enter(&ibnex.ibnex_mutex);
3380 	if ((node->node_next == NULL) && (node->node_prev == NULL))
3381 		ibnex.ibnex_port_node_head = NULL;
3382 	else if (node->node_next == NULL)
3383 		node->node_prev->node_next = NULL;
3384 	else if (node->node_prev == NULL) {
3385 		node->node_next->node_prev = NULL;
3386 		ibnex.ibnex_port_node_head = node->node_next;
3387 	} else {
3388 		node->node_prev->node_next = node->node_next;
3389 		node->node_next->node_prev = node->node_prev;
3390 	}
3391 	mutex_exit(&ibnex.ibnex_mutex);
3392 	kmem_free(node, sizeof (ibnex_node_data_t));
3393 }
3394 
3395 
3396 /*
3397  * ibnex_is_node_data_present()
3398  *	Checks whether ibnex_node_t is created already
3399  *	Returns ibnex_node_data_t if found, otherwise NULL
3400  */
3401 static ibnex_node_data_t *
3402 ibnex_is_node_data_present(ibnex_node_type_t node_type, void *attr,
3403     int index, ib_pkey_t pkey)
3404 {
3405 	ibnex_node_data_t	*nodep;
3406 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3407 	if (node_type == IBNEX_IOC_NODE) {
3408 		ibdm_ioc_info_t *ioc_infop = (ibdm_ioc_info_t *)attr;
3409 
3410 		for (nodep = ibnex.ibnex_ioc_node_head; nodep != NULL;
3411 		    nodep = nodep->node_next) {
3412 			if (nodep->node_data.ioc_node.ioc_guid ==
3413 			    ioc_infop->ioc_profile.ioc_guid) {
3414 				return (nodep);
3415 			}
3416 		}
3417 
3418 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3419 		for (nodep = ibnex.ibnex_pseudo_node_head; nodep;
3420 		    nodep = nodep->node_next)
3421 			if (strcmp(nodep->node_data.pseudo_node.
3422 			    pseudo_node_addr, (char *)attr) == 0)
3423 				return (nodep);
3424 
3425 	} else {
3426 		ibdm_port_attr_t *pattrp = (ibdm_port_attr_t *)attr;
3427 
3428 		for (nodep = ibnex.ibnex_port_node_head; nodep != NULL;
3429 		    nodep = nodep->node_next) {
3430 			if ((nodep->node_data.port_node.port_guid ==
3431 			    pattrp->pa_port_guid) &&
3432 			    (nodep->node_data.port_node.port_commsvc_idx ==
3433 			    index) &&
3434 			    (nodep->node_data.port_node.port_pkey == pkey)) {
3435 				return (nodep);
3436 			}
3437 		}
3438 	}
3439 	return (NULL);
3440 }
3441 
3442 /*
3443  * ibnex_lookup_unit_address_prop:
3444  *
3445  *	If property with name is found, return its value
3446  *	otherwise return NULL.
3447  */
3448 static char *
3449 ibnex_lookup_named_prop(ddi_prop_t *head, char *name)
3450 {
3451 	ddi_prop_t	*propp;
3452 
3453 	/* Search the list of properties for name */
3454 	for (propp = head; propp != NULL; propp = propp->prop_next)  {
3455 		if (strcmp(propp->prop_name, name) != 0)
3456 			continue;
3457 		/* named property should be valid and have a value */
3458 		if (propp->prop_len <= 1)
3459 			break;
3460 		return ((char *)propp->prop_val);
3461 	}
3462 
3463 	return ((char *)0);
3464 }
3465 
3466 
3467 /*
3468  * ibnex_pseudo_initnodes()
3469  *	This routine is specific to pseudo node information handling
3470  *	Creates a ibnex_node_data_t all pseudo nodes children of ibnex
3471  */
3472 void
3473 ibnex_pseudo_initnodes()
3474 {
3475 	int			pnam_len, len;
3476 	ibnex_node_data_t	*nodep;
3477 	struct hwc_spec		*list, *spec;
3478 	char			*node_addr, *temp, *unit_addr;
3479 	char			*node_type;
3480 
3481 	IBTF_DPRINTF_L4("ibnex", "\tpseudo_initnodes");
3482 
3483 	mutex_enter(&ibnex.ibnex_mutex);
3484 	/*
3485 	 * get a list of all "pseudo" children of "ib".
3486 	 * for these children initialize/allocate an internal
3487 	 * ibnex_node_data_t.
3488 	 */
3489 	list = hwc_get_child_spec(ibnex.ibnex_dip, (major_t)-1);
3490 	for (spec = list; spec != NULL; spec = spec->hwc_next) {
3491 		if (spec->hwc_devi_sys_prop_ptr == NULL)
3492 			continue;
3493 
3494 		/* Check "ib-node-type" property for IOC .conf */
3495 		node_type = ibnex_lookup_named_prop(
3496 		    spec->hwc_devi_sys_prop_ptr, "ib-node-type");
3497 
3498 		/* "unit-address" property should be present */
3499 		temp = ibnex_lookup_named_prop(
3500 		    spec->hwc_devi_sys_prop_ptr, "unit-address");
3501 		if (temp == NULL)
3502 			continue;
3503 
3504 		pnam_len = strlen(spec->hwc_devi_name) + strlen(temp) + 2;
3505 
3506 		node_addr = kmem_zalloc(pnam_len, KM_SLEEP);
3507 
3508 		(void) snprintf(node_addr,
3509 		    pnam_len, "%s,%s", spec->hwc_devi_name, temp);
3510 
3511 		nodep = ibnex_is_node_data_present(
3512 		    IBNEX_PSEUDO_NODE, (void *)node_addr, 0, 0);
3513 
3514 		if (nodep) {
3515 			kmem_free(node_addr, pnam_len);
3516 			continue;
3517 		}
3518 
3519 		nodep = ibnex_init_child_nodedata(IBNEX_PSEUDO_NODE,
3520 		    (void *)spec->hwc_devi_name, 0, 0);
3521 
3522 		nodep->node_data.pseudo_node.pseudo_node_addr = node_addr;
3523 		(void) snprintf(nodep->node_data.
3524 		    pseudo_node.pseudo_node_addr, pnam_len, "%s", node_addr);
3525 
3526 		len = strlen(temp) + 1;
3527 		unit_addr = (char *)kmem_alloc(len, KM_SLEEP);
3528 		nodep->node_data.pseudo_node.pseudo_unit_addr = unit_addr;
3529 		(void) snprintf(unit_addr, len, "%s", temp);
3530 		nodep->node_data.pseudo_node.pseudo_unit_addr_len = len;
3531 
3532 		if (node_type && strcmp(node_type, "merge") == 0)
3533 			nodep->node_data.pseudo_node.pseudo_merge_node = 1;
3534 
3535 		/* Mark this as a new psuedo node */
3536 		nodep->node_data.pseudo_node.pseudo_new_node = 1;
3537 
3538 		IBTF_DPRINTF_L3("ibnex", "\tpseudo_initnodes: unit addr = %s"
3539 		    " : drv name = %s", unit_addr, spec->hwc_devi_name);
3540 	}
3541 	hwc_free_spec_list(list);
3542 	mutex_exit(&ibnex.ibnex_mutex);
3543 }
3544 
3545 
3546 /*
3547  * ibnex_init_child_nodedata()
3548  *
3549  *	Allocate memory for the parent private data for device node
3550  *	Initializes the parent private child device node data.
3551  *	Returns pointer to the parent private data
3552  */
3553 static ibnex_node_data_t *
3554 ibnex_init_child_nodedata(ibnex_node_type_t node_type, void *attr, int index,
3555     ib_pkey_t pkey)
3556 {
3557 	char			 *devi_name;
3558 	ibdm_ioc_info_t		 *ioc_info;
3559 	ibnex_ioc_node_t	 *ioc_node;
3560 	ibnex_node_data_t	 *node_data;
3561 	ib_dm_ioc_ctrl_profile_t *ioc_profile;
3562 
3563 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3564 
3565 	node_data = kmem_zalloc(sizeof (ibnex_node_data_t), KM_SLEEP);
3566 	node_data->node_state = IBNEX_CFGADM_CONFIGURING;
3567 	node_data->node_type	= node_type;
3568 
3569 	if (node_type == IBNEX_IOC_NODE) {
3570 		ioc_info	= (ibdm_ioc_info_t *)attr;
3571 		ioc_profile	= &ioc_info->ioc_profile;
3572 		ioc_node	= &node_data->node_data.ioc_node;
3573 
3574 		ioc_node->iou_guid = ioc_info->ioc_iou_guid;
3575 		ioc_node->ioc_guid = ioc_profile->ioc_guid;
3576 		(void) strncpy(ioc_node->ioc_id_string,
3577 		    (char *)ioc_profile->ioc_id_string,
3578 		    IB_DM_IOC_ID_STRING_LEN);
3579 		ioc_node->ioc_ngids = ioc_info->ioc_nportgids;
3580 
3581 		node_data->node_next = ibnex.ibnex_ioc_node_head;
3582 		node_data->node_prev = NULL;
3583 		if (ibnex.ibnex_ioc_node_head)
3584 			ibnex.ibnex_ioc_node_head->node_prev = node_data;
3585 		ibnex.ibnex_ioc_node_head = node_data;
3586 	} else if (node_type == IBNEX_PSEUDO_NODE) {
3587 		devi_name = (char *)attr;
3588 		node_data->node_data.pseudo_node.pseudo_devi_name =
3589 		    kmem_zalloc(strlen(devi_name) + 1, KM_SLEEP);
3590 		(void) strncpy(node_data->node_data.pseudo_node.
3591 		    pseudo_devi_name, devi_name, strlen(devi_name));
3592 		node_data->node_next = ibnex.ibnex_pseudo_node_head;
3593 		node_data->node_prev = NULL;
3594 		if (ibnex.ibnex_pseudo_node_head)
3595 			ibnex.ibnex_pseudo_node_head->node_prev = node_data;
3596 		ibnex.ibnex_pseudo_node_head = node_data;
3597 	} else {
3598 		node_data->node_data.port_node.port_hcaguid =
3599 		    ((ibdm_port_attr_t *)attr)->pa_hca_guid;
3600 		node_data->node_data.port_node.port_guid =
3601 		    ((ibdm_port_attr_t *)attr)->pa_port_guid;
3602 		node_data->node_data.port_node.port_num =
3603 		    ((ibdm_port_attr_t *)attr)->pa_port_num;
3604 		node_data->node_data.port_node.port_commsvc_idx = index;
3605 		node_data->node_data.port_node.port_pkey = pkey;
3606 
3607 		node_data->node_next = ibnex.ibnex_port_node_head;
3608 		node_data->node_prev = NULL;
3609 		if (ibnex.ibnex_port_node_head)
3610 			ibnex.ibnex_port_node_head->node_prev = node_data;
3611 		ibnex.ibnex_port_node_head = node_data;
3612 	}
3613 	return (node_data);
3614 }
3615 
3616 static int
3617 ibnex_get_eventcookie(dev_info_t *dip, dev_info_t *rdip,
3618     char *eventname, ddi_eventcookie_t *cookie)
3619 {
3620 	int rc;
3621 
3622 
3623 	IBTF_DPRINTF_L4("ibnex", "ibnex_get_eventcookie(%p, %p, %s, 0x%X)",
3624 	    dip, rdip, eventname, cookie);
3625 
3626 	rc = ndi_event_retrieve_cookie(ibnex.ibnex_ndi_event_hdl,
3627 	    rdip, eventname, cookie, NDI_EVENT_NOPASS);
3628 	if (rc == NDI_SUCCESS) {
3629 		mutex_enter(&ibnex.ibnex_mutex);
3630 		ibnex.ibnex_prop_update_evt_cookie = *cookie;
3631 		mutex_exit(&ibnex.ibnex_mutex);
3632 	}
3633 
3634 	return (rc);
3635 }
3636 
3637 static int
3638 ibnex_add_eventcall(dev_info_t *dip, dev_info_t *rdip,
3639     ddi_eventcookie_t cookie, void (*callback)(dev_info_t *dip,
3640     ddi_eventcookie_t cookie, void *arg, void *bus_impldata),
3641     void *arg, ddi_callback_id_t *cb_id)
3642 {
3643 	IBTF_DPRINTF_L4("ibnex",
3644 	    "ibnex_add_eventcall(%p, %p, 0x%X, %p, %p, %p)",
3645 	    dip, rdip, cookie, callback, arg, cb_id);
3646 
3647 	return (ndi_event_add_callback(ibnex.ibnex_ndi_event_hdl,
3648 	    rdip, cookie, callback, arg, NDI_SLEEP, cb_id));
3649 }
3650 
3651 static int
3652 ibnex_remove_eventcall(dev_info_t *dip, ddi_callback_id_t cb_id)
3653 {
3654 	IBTF_DPRINTF_L4("ibnex", "ibnex_remove_eventcall(%p, 0x%X)",
3655 	    dip, cb_id);
3656 
3657 	return (ndi_event_remove_callback(ibnex.ibnex_ndi_event_hdl,
3658 	    cb_id));
3659 }
3660 
3661 static int
3662 ibnex_post_event(dev_info_t *dip, dev_info_t *rdip,
3663     ddi_eventcookie_t cookie, void *bus_impldata)
3664 {
3665 	IBTF_DPRINTF_L4("ibnex", "ibnex_post_event(%p, %p, 0x%X, %p)",
3666 	    dip, rdip, cookie, bus_impldata);
3667 
3668 	return (ndi_event_run_callbacks(ibnex.ibnex_ndi_event_hdl, rdip,
3669 	    cookie, bus_impldata));
3670 }
3671 
3672 /*
3673  * ibnex_reprobe_ioc_dev()
3674  *
3675  * This could be called as a result of ibt_reprobe_dev request or
3676  * cfgadm command. The function is called from a taskq in case of
3677  * ibt_reprobe_dev and from user context for cfgadm command.
3678  *
3679  * This function reprobes the properties for one IOC dip.
3680  *
3681  * node_reprobe_state should be set before calling this function.
3682  */
3683 void
3684 ibnex_reprobe_ioc_dev(void *arg)
3685 {
3686 	dev_info_t	*dip = (dev_info_t *)arg;
3687 	ibnex_node_data_t	*node_data;
3688 	ibnex_ioc_node_t	*ioc_data;
3689 	ibdm_ioc_info_t		*ioc_info;
3690 
3691 	/* ASSERT(NO_LOCKS_HELD); */
3692 	ASSERT(dip != NULL);
3693 
3694 	node_data = ddi_get_parent_data(dip);
3695 	ASSERT(node_data);
3696 
3697 	if (node_data->node_dip == NULL) {
3698 		IBTF_DPRINTF_L4("ibnex", "reprobe for unconfigured dip");
3699 		mutex_enter(&ibnex.ibnex_mutex);
3700 		ibnex_wakeup_reprobe_ioc(node_data, 0);
3701 		mutex_exit(&ibnex.ibnex_mutex);
3702 		return;
3703 	}
3704 	ioc_data = &(node_data->node_data.ioc_node);
3705 
3706 	/* Reprobe the IOC */
3707 	ioc_info = ibdm_ibnex_probe_ioc(ioc_data->iou_guid, ioc_data->ioc_guid,
3708 	    1);
3709 	if (ioc_info == NULL) {
3710 		IBTF_DPRINTF_L2("ibnex", "Null ioc_info from reprobe");
3711 		mutex_enter(&ibnex.ibnex_mutex);
3712 		ibnex_wakeup_reprobe_ioc(node_data, 1);
3713 		mutex_exit(&ibnex.ibnex_mutex);
3714 		return;
3715 	}
3716 
3717 	mutex_enter(&ibnex.ibnex_mutex);
3718 	if (node_data->node_dip)
3719 		ibnex_update_prop(node_data, ioc_info);
3720 	ibnex_wakeup_reprobe_ioc(node_data, 0);
3721 	mutex_exit(&ibnex.ibnex_mutex);
3722 
3723 	ibdm_ibnex_free_ioc_list(ioc_info);
3724 }
3725 
3726 /*
3727  * ibnex_reprobe_all()
3728  *
3729  * This could be called as a result of cfgadm command. The function
3730  * is called from user context.
3731  *
3732  * This function reprobes the properties for all IOC dips.
3733  *
3734  * ibnex_reprobe_state should be set before calling this function.
3735  */
3736 void
3737 ibnex_reprobe_ioc_all()
3738 {
3739 	ibnex_node_data_t	*node_data;
3740 	ibdm_ioc_info_t		*ioc_info_list, *ioc;
3741 
3742 	/* ASSERT(NO_LOCKS_HELD); */
3743 
3744 	/* Sweep the fabric */
3745 	ioc = ioc_info_list = ibdm_ibnex_get_ioc_list(
3746 	    IBDM_IBNEX_REPROBE_ALL);
3747 	if (ioc_info_list == NULL) {
3748 		mutex_enter(&ibnex.ibnex_mutex);
3749 		ibnex_wakeup_reprobe_all();
3750 		mutex_exit(&ibnex.ibnex_mutex);
3751 		return;
3752 	}
3753 
3754 	mutex_enter(&ibnex.ibnex_mutex);
3755 	while (ioc_info_list) {
3756 		if ((node_data = ibnex_is_node_data_present(IBNEX_IOC_NODE,
3757 		    ioc_info_list, 0, 0)) != NULL &&
3758 		    node_data->node_dip != NULL) {
3759 			ibnex_update_prop(node_data, ioc_info_list);
3760 		}
3761 		ioc_info_list = ioc_info_list->ioc_next;
3762 	}
3763 	ibnex_wakeup_reprobe_all();
3764 	mutex_exit(&ibnex.ibnex_mutex);
3765 
3766 	ibdm_ibnex_free_ioc_list(ioc);
3767 }
3768 
3769 /*
3770  * Update the properties, if it has modified and notify IBTF client.
3771  */
3772 static void
3773 ibnex_update_prop(ibnex_node_data_t *node_data, ibdm_ioc_info_t *ioc_info)
3774 {
3775 	ibt_prop_update_payload_t	evt_data;
3776 	dev_info_t	*dip = node_data->node_dip;
3777 	ddi_eventcookie_t	evt_cookie;
3778 	ibnex_ioc_node_t *ioc;
3779 
3780 	ASSERT(MUTEX_HELD(&ibnex.ibnex_mutex));
3781 
3782 	ASSERT(dip != NULL);
3783 
3784 	ioc = &node_data->node_data.ioc_node;
3785 
3786 	evt_data = ioc_info->ioc_info_updated;
3787 	evt_cookie = ibnex.ibnex_prop_update_evt_cookie;
3788 
3789 	/*
3790 	 * For a disconnected IOC :
3791 	 *	Store the ioc_profile for supplying cfgadm info
3792 	 *	ibdm maintains no info of disconnected IOC
3793 	 *
3794 	 * For reconnected IOC :
3795 	 *	ibdm has info of previous service entries
3796 	 *	ioc_profile maintained by ibnexus is used to
3797 	 *	update ib_srv_prop_updated.
3798 	 *	Free the ibnex maintained ioc_profile
3799 	 */
3800 	if (ioc_info->ioc_nportgids == 0) {
3801 		IBTF_DPRINTF_L4("ibnex",
3802 		    "\tupdate_prop:  IOC disconnected");
3803 		ioc->ioc_profile = (ib_dm_ioc_ctrl_profile_t *)kmem_zalloc(
3804 		    sizeof (ib_dm_ioc_ctrl_profile_t), KM_SLEEP);
3805 		bcopy(&ioc_info->ioc_profile, ioc->ioc_profile,
3806 		    sizeof (ib_dm_ioc_ctrl_profile_t));
3807 
3808 		ibnex.ibnex_num_disconnect_iocs++;
3809 	} else if (ioc_info->ioc_nportgids != 0 && ioc->ioc_ngids == 0 &&
3810 	    ioc->ioc_profile != NULL) {
3811 		IBTF_DPRINTF_L4("ibnex",
3812 		    "\tupdate_prop: IOC reconnected");
3813 		if (ioc->ioc_profile->ioc_service_entries !=
3814 		    ioc_info->ioc_profile.ioc_service_entries)
3815 			evt_data.ib_srv_prop_updated = 1;
3816 
3817 		ibnex.ibnex_num_disconnect_iocs--;
3818 		kmem_free(ioc->ioc_profile, sizeof (ib_dm_ioc_ctrl_profile_t));
3819 		ioc->ioc_profile = NULL;
3820 	}
3821 
3822 	/* Update the properties that have changed */
3823 	mutex_exit(&ibnex.ibnex_mutex);
3824 	if (evt_data.ib_gid_prop_updated) {
3825 		if (ibnex_create_ioc_portgid_prop(dip, ioc_info) !=
3826 		    IBNEX_SUCCESS) {
3827 			mutex_enter(&ibnex.ibnex_mutex);
3828 			return;
3829 		}
3830 	}
3831 	if (evt_data.ib_srv_prop_updated) {
3832 		if (ioc_info->ioc_profile.ioc_service_entries != 0 &&
3833 		    (ibnex_create_ioc_srv_props(dip, ioc_info) !=
3834 		    IBNEX_SUCCESS)) {
3835 			mutex_enter(&ibnex.ibnex_mutex);
3836 			return;
3837 		} else if (ioc_info->ioc_profile.ioc_service_entries == 0) {
3838 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
3839 			    "service-id");
3840 			(void) ndi_prop_remove(DDI_DEV_T_NONE, dip,
3841 			    "service-name");
3842 		}
3843 	}
3844 	mutex_enter(&ibnex.ibnex_mutex);
3845 	ioc->ioc_ngids = ioc_info->ioc_nportgids;
3846 
3847 	/*
3848 	 * Post an event if :
3849 	 *	1. Properites have changed or NOTIFY_ALWAYS is set.
3850 	 *	2. child dip is configured and a valid cookie for
3851 	 *	   IB_PROP_UPDATE_EVENT.
3852 	 */
3853 	if ((evt_data.ib_prop_updated != 0 ||
3854 	    (node_data->node_reprobe_state &
3855 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)) &&
3856 	    ((node_data->node_state == IBNEX_CFGADM_CONFIGURED) &&
3857 		    (evt_cookie != NULL))) {
3858 			mutex_exit(&ibnex.ibnex_mutex);
3859 
3860 			if (ndi_post_event(ibnex.ibnex_dip, dip,
3861 			    evt_cookie, &evt_data) != NDI_SUCCESS)
3862 				IBTF_DPRINTF_L2("ibnex",
3863 				    "\tndi_post_event failed\n");
3864 
3865 			mutex_enter(&ibnex.ibnex_mutex);
3866 	}
3867 
3868 	/*
3869 	 * Cleanup node_reprobe_state, for ibt_reprobe_dev
3870 	 * requests, when reprobe all / node reprobe is in
3871 	 * progress. ibnex_reprobe_ioc_dev is not called
3872 	 * in this case.
3873 	 */
3874 	if (node_data->node_reprobe_state ==
3875 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS)
3876 		ibnex_wakeup_reprobe_ioc(node_data, 0);
3877 }
3878 
3879 static ibnex_rval_t
3880 ibnex_unique_svcname(char *svcname)
3881 {
3882 	int i;
3883 
3884 	/* Check Port Services */
3885 	for (i = 0; i < ibnex.ibnex_num_comm_svcs; i++)
3886 		if (ibnex.ibnex_comm_svc_names[i] && strncmp(svcname,
3887 		    ibnex.ibnex_comm_svc_names[i], 4) == 0)
3888 			return (IBNEX_FAILURE);
3889 
3890 	/* Check VPPA Services */
3891 	for (i = 0; i < ibnex.ibnex_nvppa_comm_svcs; i++)
3892 		if (ibnex.ibnex_vppa_comm_svc_names[i] && strncmp(svcname,
3893 		    ibnex.ibnex_vppa_comm_svc_names[i], 4) == 0)
3894 			return (IBNEX_FAILURE);
3895 
3896 	/* Check HCA_SVC Services */
3897 	for (i = 0; i < ibnex.ibnex_nhcasvc_comm_svcs; i++)
3898 		if (ibnex.ibnex_hcasvc_comm_svc_names[i] && strncmp(svcname,
3899 		    ibnex.ibnex_hcasvc_comm_svc_names[i], 4) == 0)
3900 			return (IBNEX_FAILURE);
3901 
3902 	return (IBNEX_SUCCESS);
3903 }
3904 
3905 static void
3906 ibnex_handle_reprobe_dev(void *arg)
3907 {
3908 	dev_info_t	*dip = (dev_info_t *)arg;
3909 	ibnex_node_data_t	*node_data;
3910 
3911 	ASSERT(dip != NULL);
3912 	node_data = ddi_get_parent_data(dip);
3913 	ASSERT(node_data);
3914 
3915 	/*
3916 	 * Return success if:
3917 	 *	1. Reprobe for all nodes are in progress
3918 	 *	2. Reprobe for this node is in progress.
3919 	 * The reprobe in progress will complete eventually and
3920 	 * update the properties, if required.
3921 	 */
3922 	mutex_enter(&ibnex.ibnex_mutex);
3923 	if (ibnex.ibnex_reprobe_state != 0 ||
3924 	    node_data->node_reprobe_state != 0) {
3925 		/*
3926 		 * Setting NOTIFY_ALWAYS to ensure that
3927 		 * DDI event is delivered always for
3928 		 * ibt_reprobe_dev
3929 		 */
3930 		node_data->node_reprobe_state |=
3931 		    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
3932 		mutex_exit(&ibnex.ibnex_mutex);
3933 		return;
3934 	}
3935 	node_data->node_reprobe_state =
3936 	    IBNEX_NODE_REPROBE_NOTIFY_ALWAYS;
3937 	mutex_exit(&ibnex.ibnex_mutex);
3938 	ibnex_reprobe_ioc_dev(arg);
3939 }
3940 
3941 
3942 /*
3943  * MPxIO pathmangement routines. Currently IB nexus does not support
3944  * any kind of pathmangement. So, just return success to make MPxIO
3945  * framework happy.
3946  */
3947 /*ARGSUSED*/
3948 static int
3949 ib_vhci_pi_init(dev_info_t *dip, mdi_pathinfo_t *pip, int flag)
3950 {
3951 	IBTF_DPRINTF_L4("ibnex", "\tpi_init: dip %p pip %p", dip, pip);
3952 	return (MDI_SUCCESS);
3953 }
3954 
3955 
3956 /*ARGSUSED*/
3957 static int
3958 ib_vhci_pi_uninit(dev_info_t *dip, mdi_pathinfo_t *pip, int flag)
3959 {
3960 	IBTF_DPRINTF_L4("ibnex", "\tpi_uninit: dip %p pip %p", dip, pip);
3961 	return (MDI_SUCCESS);
3962 }
3963 
3964 
3965 /*ARGSUSED*/
3966 static int
3967 ib_vhci_pi_state_change(dev_info_t *dip, mdi_pathinfo_t *pip,
3968 		mdi_pathinfo_state_t state, uint32_t arg1, int arg2)
3969 {
3970 	IBTF_DPRINTF_L4("ibnex",
3971 	    "\tpi_state_change: dip %p pip %p state %x", dip, pip, state);
3972 	return (MDI_SUCCESS);
3973 }
3974 
3975 
3976 /*ARGSUSED*/
3977 static int
3978 ib_vhci_failover(dev_info_t *dip1, dev_info_t *dip2, int arg)
3979 {
3980 	return (MDI_SUCCESS);
3981 }
3982 
3983 
3984 static int
3985 ibnex_bus_power(dev_info_t *parent, void *impl_arg,
3986     pm_bus_power_op_t op, void *arg, void *result)
3987 {
3988 
3989 	int ret = DDI_SUCCESS;
3990 
3991 	IBTF_DPRINTF_L4("ibnex", "\tbus_power: begin: op = %d", op);
3992 
3993 	/*
3994 	 * Generic processing in MPxIO framework
3995 	 */
3996 	ret = mdi_bus_power(parent, impl_arg, op, arg, result);
3997 
3998 	switch (ret) {
3999 	case MDI_SUCCESS:
4000 		ret = DDI_SUCCESS;
4001 		break;
4002 	case MDI_FAILURE:
4003 		ret = DDI_FAILURE;
4004 		break;
4005 	default:
4006 		break;
4007 	}
4008 
4009 	return (ret);
4010 }
4011 
4012 
4013 /*
4014  * If enumerated as a child of IB Nexus / VHCI, call mdi_vhci_bus_config.
4015  * ndi_devi_enter is not held during this call. mdi_vhci_bus_config()
4016  * will have called ndi_busop_bus_config(), no need for the caller to call
4017  * ndi_busop_bus_config() again.
4018  *
4019  * If enumerated as a child of HCA device, this could be a case for
4020  * Sparc boot or device enumeration from PHCI, driven by MDI.
4021  * Hold parent lock (ndi_devi_enter). The caller will have to call
4022  * ndi_busop_bus_config() if this function returns SUCCESS.
4023  *
4024  * if the device name contains ":port", then it is the Sparc boot case.
4025  * Handle this as before.
4026  *
4027  * If the device name does *not* contain the ":port", then :
4028  *	1. ibdm to probe IOC
4029  *	2. Create a pathinfo only if the IOC is reachable from the parent dip.
4030  */
4031 static int
4032 ibnex_ioc_bus_config_one(dev_info_t **pdipp, uint_t flag,
4033     ddi_bus_config_op_t op, void *devname, dev_info_t **child,
4034     int *need_bus_config)
4035 {
4036 	int ret = DDI_FAILURE, circ;
4037 	dev_info_t *pdip = *pdipp;
4038 	ib_guid_t	iou_guid, ioc_guid;
4039 	char *ioc_guid_str;
4040 
4041 
4042 	*need_bus_config = 1;
4043 
4044 	if (pdip == ibnex.ibnex_dip) {
4045 		if (ibnex_devname_to_node_n_ioc_guids(
4046 		    (char *)devname, &iou_guid, &ioc_guid,
4047 		    &ioc_guid_str) != IBNEX_SUCCESS) {
4048 			return (ret);
4049 		}
4050 		ret = mdi_vhci_bus_config(pdip, flag, op, devname, child,
4051 		    ioc_guid_str);
4052 		kmem_free(ioc_guid_str, strlen(ioc_guid_str) + 1);
4053 		if (ret == MDI_SUCCESS)
4054 			*need_bus_config = 0;
4055 	} else {
4056 		ndi_devi_enter(pdip, &circ);
4057 		if (strstr((char *)devname, ":port=") != NULL) {
4058 			ret = ibnex_config_root_iocnode(pdip, devname);
4059 			ASSERT(ibnex.ibnex_dip == NULL);
4060 			*pdipp = ibnex.ibnex_dip;
4061 		} else {
4062 			ret = ibnex_config_ioc_node(devname, pdip);
4063 		}
4064 		ndi_devi_exit(pdip, circ);
4065 	}
4066 	return (ret);
4067 }
4068 
4069 static int
4070 ibnex_is_merge_node(dev_info_t *child)
4071 {
4072 	char	*node;
4073 	int	ret = IBNEX_INVALID_NODE;
4074 
4075 	if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child,
4076 	    DDI_PROP_DONTPASS, "ib-node-type", &node) !=
4077 	    DDI_PROP_SUCCESS) {
4078 		return (IBNEX_FAILURE);
4079 	}
4080 
4081 	if (node != NULL && *node != 0) {
4082 		if (strcmp(node, "merge") == 0)
4083 			ret = IBNEX_SUCCESS;
4084 		else {
4085 			IBTF_DPRINTF_L4("ibnex",
4086 			    "\tis_merge_node: ib-node-type = %s", node);
4087 		}
4088 	}
4089 
4090 	ddi_prop_free(node);
4091 	return (ret);
4092 }
4093 
4094 /*
4095  * Checks if the dn_head for the driver has already
4096  * initialized by the prom tree.
4097  */
4098 int
4099 ibnex_hw_in_dev_tree(char *driver_name)
4100 {
4101 	struct devnames *dnp;
4102 	int ret = DDI_FAILURE;
4103 	major_t	major;
4104 
4105 	if (devnamesp == NULL)
4106 		return (ret);
4107 
4108 	major = ddi_name_to_major(driver_name);
4109 	if (major == -1)
4110 		return (ret);
4111 
4112 	dnp = &devnamesp[major];
4113 	if (dnp->dn_head)
4114 		ret = DDI_SUCCESS;
4115 
4116 	return (ret);
4117 }
4118