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 /*
23 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 /*
27 * Copyright 2023 Oxide Computer Company
28 */
29
30 #include <sys/types.h>
31 #include <sys/kmem.h>
32 #include <sys/ksynch.h>
33 #include <sys/conf.h>
34 #include <sys/ddi.h>
35 #include <sys/sunddi.h>
36 #include <sys/sunndi.h>
37
38 #include <sys/ib/clients/eoib/enx_impl.h>
39
40 static char *eibnx_make_nodename(eibnx_thr_info_t *, uint16_t);
41
42 /*
43 * This routine is only called when the port-monitor thread is
44 * about to die. Between the time the first mcast solicitation
45 * was done by the port-monitor thread and the time it is asked
46 * to die, a lot of things could've happened and we need to
47 * cleanup all of it.
48 */
49 void
eibnx_cleanup_port_nodes(eibnx_thr_info_t * info)50 eibnx_cleanup_port_nodes(eibnx_thr_info_t *info)
51 {
52 eibnx_t *ss = enx_global_ss;
53 eibnx_nodeq_t *node;
54 eibnx_nodeq_t *prev;
55 eibnx_gw_info_t *gwi;
56 eibnx_gw_info_t *gw_list;
57 eibnx_gw_info_t *nxt_gwi;
58 eibnx_child_t *child;
59 eibnx_child_t *nxt_child;
60 eibnx_child_t *children;
61
62 /*
63 * Since we would've already stopped processing completions for
64 * this thread's work queue, we don't have to worry about requests
65 * coming in for creation of new eoib nodes. However, there may
66 * be pending node creation requests for this port (thr_info)
67 * that we will have to drop.
68 */
69 mutex_enter(&ss->nx_nodeq_lock);
70 prev = NULL;
71 for (node = ss->nx_nodeq; node; node = node->nc_next) {
72 if (node->nc_info != info) {
73 prev = node;
74 } else {
75 if (prev == NULL) {
76 ss->nx_nodeq = node->nc_next;
77 } else {
78 prev->nc_next = node->nc_next;
79 }
80 kmem_free(node, sizeof (eibnx_nodeq_t));
81 }
82 }
83 mutex_exit(&ss->nx_nodeq_lock);
84
85 /*
86 * Now go through the list of all children and free up any
87 * resource we might've allocated; note that the child dips
88 * could've been offlined/removed by now, so we don't do
89 * anything with them.
90 */
91 mutex_enter(&info->ti_child_lock);
92 children = info->ti_child;
93 info->ti_child = NULL;
94 mutex_exit(&info->ti_child_lock);
95
96 for (child = children; child; child = nxt_child) {
97 nxt_child = child->ch_next;
98
99 if (child->ch_node_name) {
100 kmem_free(child->ch_node_name, MAXNAMELEN);
101 }
102 kmem_free(child, sizeof (eibnx_child_t));
103 }
104
105 /*
106 * Return all the swqes we've acquired for the gateway unicast
107 * solicitations, free any address vectors we've allocated and
108 * finally free the gw entries from the list.
109 */
110 mutex_enter(&info->ti_gw_lock);
111 gw_list = info->ti_gw;
112 info->ti_gw = NULL;
113 mutex_exit(&info->ti_gw_lock);
114
115 for (gwi = gw_list; gwi; gwi = nxt_gwi) {
116 nxt_gwi = gwi->gw_next;
117
118 eibnx_release_swqe((eibnx_wqe_t *)(gwi->gw_swqe));
119 if ((gwi->gw_addr).ga_vect) {
120 kmem_free((gwi->gw_addr).ga_vect,
121 sizeof (ibt_adds_vect_t));
122 (gwi->gw_addr).ga_vect = NULL;
123 }
124 mutex_destroy(&gwi->gw_adv_lock);
125
126 kmem_free(gwi, sizeof (eibnx_gw_info_t));
127 }
128 }
129
130 /*
131 * Communicate all the details we received about the gateway (via the
132 * advertisement control message) to the eoib instance we're creating.
133 */
134 void
eibnx_create_node_props(dev_info_t * dip,eibnx_thr_info_t * info,eibnx_gw_info_t * gwi)135 eibnx_create_node_props(dev_info_t *dip, eibnx_thr_info_t *info,
136 eibnx_gw_info_t *gwi)
137 {
138 int ret;
139
140 ret = ndi_prop_update_int64(DDI_DEV_T_NONE, dip, EIB_PROP_HCA_GUID,
141 info->ti_hca_guid);
142 if (ret != DDI_PROP_SUCCESS) {
143 ENX_DPRINTF_WARN("ndi_prop_update_int64() failed to set "
144 "%s property to 0x%llx for child dip 0x%llx, ret=%d",
145 EIB_PROP_HCA_GUID, info->ti_hca_guid, dip, ret);
146 }
147
148 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_HCA_PORTNUM,
149 info->ti_pi->p_port_num);
150 if (ret != DDI_PROP_SUCCESS) {
151 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
152 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
153 EIB_PROP_HCA_PORTNUM, info->ti_pi->p_port_num, dip, ret);
154 }
155
156 ret = ndi_prop_update_int64(DDI_DEV_T_NONE, dip, EIB_PROP_GW_SYS_GUID,
157 gwi->gw_system_guid);
158 if (ret != DDI_PROP_SUCCESS) {
159 ENX_DPRINTF_WARN("ndi_prop_update_int64() failed to set "
160 "%s property to 0x%llx for child dip 0x%llx, ret=%d",
161 EIB_PROP_GW_SYS_GUID, gwi->gw_system_guid, dip, ret);
162 }
163
164 ret = ndi_prop_update_int64(DDI_DEV_T_NONE, dip, EIB_PROP_GW_GUID,
165 gwi->gw_guid);
166 if (ret != DDI_PROP_SUCCESS) {
167 ENX_DPRINTF_WARN("ndi_prop_update_int64() failed to set "
168 "%s property to 0x%llx for child dip 0x%llx, ret=%d",
169 EIB_PROP_GW_GUID, gwi->gw_guid, dip, ret);
170 }
171
172 ret = ndi_prop_update_int64(DDI_DEV_T_NONE, dip, EIB_PROP_GW_SN_PREFIX,
173 (gwi->gw_addr).ga_gid.gid_prefix);
174 if (ret != DDI_PROP_SUCCESS) {
175 ENX_DPRINTF_WARN("ndi_prop_update_int64() failed to set "
176 "%s property to 0x%llx for child dip 0x%llx, ret=%d",
177 EIB_PROP_GW_SN_PREFIX, (gwi->gw_addr).ga_gid.gid_prefix,
178 dip, ret);
179 }
180
181 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_ADV_PERIOD,
182 gwi->gw_adv_period);
183 if (ret != DDI_PROP_SUCCESS) {
184 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
185 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
186 EIB_PROP_GW_ADV_PERIOD, gwi->gw_adv_period, dip, ret);
187 }
188
189 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_KA_PERIOD,
190 gwi->gw_ka_period);
191 if (ret != DDI_PROP_SUCCESS) {
192 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
193 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
194 EIB_PROP_GW_KA_PERIOD, gwi->gw_ka_period, dip, ret);
195 }
196
197 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_VNIC_KA_PERIOD,
198 gwi->gw_vnic_ka_period);
199 if (ret != DDI_PROP_SUCCESS) {
200 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
201 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
202 EIB_PROP_VNIC_KA_PERIOD, gwi->gw_vnic_ka_period, dip, ret);
203 }
204
205 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_CTRL_QPN,
206 gwi->gw_ctrl_qpn);
207 if (ret != DDI_PROP_SUCCESS) {
208 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
209 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
210 EIB_PROP_GW_CTRL_QPN, gwi->gw_ctrl_qpn, dip, ret);
211 }
212
213 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_LID,
214 gwi->gw_lid);
215 if (ret != DDI_PROP_SUCCESS) {
216 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
217 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
218 EIB_PROP_GW_LID, gwi->gw_lid, dip, ret);
219 }
220
221 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_PORTID,
222 gwi->gw_portid);
223 if (ret != DDI_PROP_SUCCESS) {
224 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
225 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
226 EIB_PROP_GW_PORTID, gwi->gw_portid, dip, ret);
227 }
228
229 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip,
230 EIB_PROP_GW_NUM_NET_VNICS, gwi->gw_num_net_vnics);
231 if (ret != DDI_PROP_SUCCESS) {
232 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
233 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
234 EIB_PROP_GW_NUM_NET_VNICS, gwi->gw_num_net_vnics, dip, ret);
235 }
236
237 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_AVAILABLE,
238 gwi->gw_flag_available);
239 if (ret != DDI_PROP_SUCCESS) {
240 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
241 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
242 EIB_PROP_GW_AVAILABLE, gwi->gw_flag_available, dip, ret);
243 }
244
245 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_HOST_VNICS,
246 gwi->gw_is_host_adm_vnics);
247 if (ret != DDI_PROP_SUCCESS) {
248 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
249 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
250 EIB_PROP_GW_HOST_VNICS, gwi->gw_is_host_adm_vnics,
251 dip, ret);
252 }
253
254 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_SL,
255 gwi->gw_sl);
256 if (ret != DDI_PROP_SUCCESS) {
257 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
258 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
259 EIB_PROP_GW_SL, gwi->gw_sl, dip, ret);
260 }
261
262 ret = ndi_prop_update_int(DDI_DEV_T_NONE, dip, EIB_PROP_GW_N_RSS_QPN,
263 gwi->gw_n_rss_qpn);
264 if (ret != DDI_PROP_SUCCESS) {
265 ENX_DPRINTF_WARN("ndi_prop_update_int() failed to set "
266 "%s property to 0x%lx for child dip 0x%llx, ret=%d",
267 EIB_PROP_GW_N_RSS_QPN, gwi->gw_n_rss_qpn, dip, ret);
268 }
269
270 ret = ndi_prop_update_string(DDI_DEV_T_NONE, dip, EIB_PROP_GW_SYS_NAME,
271 (char *)(gwi->gw_system_name));
272 if (ret != DDI_PROP_SUCCESS) {
273 ENX_DPRINTF_WARN("ndi_prop_update_string() failed to set "
274 "%s property to '%s' for child dip 0x%llx, ret=%d",
275 EIB_PROP_GW_SYS_NAME, gwi->gw_system_name, dip, ret);
276 }
277
278 ret = ndi_prop_update_string(DDI_DEV_T_NONE, dip, EIB_PROP_GW_PORT_NAME,
279 (char *)(gwi->gw_port_name));
280 if (ret != DDI_PROP_SUCCESS) {
281 ENX_DPRINTF_WARN("ndi_prop_update_string() failed to set "
282 "%s property to '%s' for child dip 0x%llx, ret=%d",
283 EIB_PROP_GW_PORT_NAME, gwi->gw_port_name, dip, ret);
284 }
285
286 ret = ndi_prop_update_string(DDI_DEV_T_NONE, dip, EIB_PROP_GW_VENDOR_ID,
287 (char *)(gwi->gw_vendor_id));
288 if (ret != DDI_PROP_SUCCESS) {
289 ENX_DPRINTF_WARN("ndi_prop_update_string() failed to set "
290 "%s property to '%s' for child dip 0x%llx, ret=%d",
291 EIB_PROP_GW_VENDOR_ID, gwi->gw_vendor_id, dip, ret);
292 }
293 }
294
295 int
eibnx_name_child(dev_info_t * child,char * name,size_t namesz)296 eibnx_name_child(dev_info_t *child, char *name, size_t namesz)
297 {
298 char *node_name;
299
300 if ((node_name = ddi_get_parent_data(child)) == NULL) {
301 ENX_DPRINTF_ERR("ddi_get_parent_data(child=0x%llx) "
302 "returned NULL", child);
303 return (DDI_NOT_WELL_FORMED);
304 }
305
306 /*
307 * Skip the name and "@" part in the eoib node path and copy the
308 * address part out to the caller.
309 */
310 (void) strlcpy(name, node_name + strlen(EIB_DRV_NAME) + 1, namesz);
311
312 return (DDI_SUCCESS);
313 }
314
315 /*
316 * Synchronization functions to mark/clear the in-progress status of
317 * bus config/unconfig operations
318 */
319
320 void
eibnx_busop_inprog_enter(eibnx_t * ss)321 eibnx_busop_inprog_enter(eibnx_t *ss)
322 {
323 mutex_enter(&ss->nx_busop_lock);
324
325 while (ss->nx_busop_flags & NX_FL_BUSOP_INPROG)
326 cv_wait(&ss->nx_busop_cv, &ss->nx_busop_lock);
327
328 ss->nx_busop_flags |= NX_FL_BUSOP_INPROG;
329
330 mutex_exit(&ss->nx_busop_lock);
331 }
332
333 void
eibnx_busop_inprog_exit(eibnx_t * ss)334 eibnx_busop_inprog_exit(eibnx_t *ss)
335 {
336 mutex_enter(&ss->nx_busop_lock);
337
338 ss->nx_busop_flags &= (~NX_FL_BUSOP_INPROG);
339
340 cv_broadcast(&ss->nx_busop_cv);
341 mutex_exit(&ss->nx_busop_lock);
342 }
343
344 eibnx_thr_info_t *
eibnx_start_port_monitor(eibnx_hca_t * hca,eibnx_port_t * port)345 eibnx_start_port_monitor(eibnx_hca_t *hca, eibnx_port_t *port)
346 {
347 eibnx_thr_info_t *ti;
348 kthread_t *kt;
349 dev_info_t *hca_dip;
350 const char *hca_drv_name;
351 int hca_drv_inst;
352
353 ti = kmem_zalloc(sizeof (eibnx_thr_info_t), KM_SLEEP);
354
355 mutex_init(&ti->ti_mcg_lock, NULL, MUTEX_DRIVER, NULL);
356 mutex_init(&ti->ti_gw_lock, NULL, MUTEX_DRIVER, NULL);
357 mutex_init(&ti->ti_child_lock, NULL, MUTEX_DRIVER, NULL);
358 mutex_init(&ti->ti_event_lock, NULL, MUTEX_DRIVER, NULL);
359 cv_init(&ti->ti_event_cv, NULL, CV_DEFAULT, NULL);
360
361 ti->ti_next = NULL;
362 ti->ti_hca_guid = hca->hc_guid;
363 ti->ti_hca = hca->hc_hdl;
364 ti->ti_pd = hca->hc_pd;
365 ti->ti_pi = port->po_pi;
366 ti->ti_ident = kmem_zalloc(MAXNAMELEN, KM_SLEEP);
367
368 /*
369 * Prepare the "ident" for EoIB nodes from this port monitor. To
370 * associate eoib instances with the corresponding HCA nodes easily,
371 * and to make sure eoib instance numbers do not change when
372 * like-for-like HCA replacements are made, tie up the ident to
373 * HCA driver name, HCA driver instance and the HCA port number.
374 * The eoib node address is later composed using this ident and
375 * the gateway port ids after discovery.
376 */
377 if ((hca_dip = ibtl_ibnex_hcaguid2dip(ti->ti_hca_guid)) == NULL) {
378 ENX_DPRINTF_WARN("ibtl_ibnex_hcaguid2dip(hca_guid=0x%llx) "
379 "returned NULL", ti->ti_hca_guid);
380 } else if ((hca_drv_name = ddi_driver_name(hca_dip)) == NULL) {
381 ENX_DPRINTF_WARN("hca driver name NULL for "
382 "hca_guid=0x%llx, hca_dip=0x%llx",
383 ti->ti_hca_guid, hca_dip);
384 } else if ((hca_drv_inst = ddi_get_instance(hca_dip)) < 0) {
385 ENX_DPRINTF_ERR("hca driver instance (%d) invalid for "
386 "hca_guid=0x%llx, hca_dip=0x%llx",
387 ti->ti_hca_guid, hca_dip);
388 } else {
389 (void) snprintf(ti->ti_ident, MAXNAMELEN, "%s%d,%x",
390 hca_drv_name, hca_drv_inst, ti->ti_pi->p_port_num);
391 }
392
393 kt = thread_create(NULL, 0, eibnx_port_monitor,
394 ti, 0, &p0, TS_RUN, minclsyspri);
395
396 ti->ti_kt_did = kt->t_did;
397
398 return (ti);
399 }
400
401 void
eibnx_stop_port_monitor(eibnx_thr_info_t * ti)402 eibnx_stop_port_monitor(eibnx_thr_info_t *ti)
403 {
404 /*
405 * Tell the port monitor thread to stop and wait for it to
406 * happen. Before marking it for death, make sure there
407 * aren't any completions being processed.
408 */
409 mutex_enter(&ti->ti_event_lock);
410 while (ti->ti_event & ENX_EVENT_COMPLETION) {
411 cv_wait(&ti->ti_event_cv, &ti->ti_event_lock);
412 }
413 ti->ti_event |= ENX_EVENT_DIE;
414 cv_broadcast(&ti->ti_event_cv);
415 mutex_exit(&ti->ti_event_lock);
416
417 thread_join(ti->ti_kt_did);
418
419 /*
420 * Destroy synchronization primitives initialized for this ti
421 */
422 cv_destroy(&ti->ti_event_cv);
423 mutex_destroy(&ti->ti_event_lock);
424 mutex_destroy(&ti->ti_child_lock);
425 mutex_destroy(&ti->ti_gw_lock);
426 mutex_destroy(&ti->ti_mcg_lock);
427
428 kmem_free(ti->ti_ident, MAXNAMELEN);
429 kmem_free(ti, sizeof (eibnx_thr_info_t));
430 }
431
432 void
eibnx_terminate_monitors(void)433 eibnx_terminate_monitors(void)
434 {
435 eibnx_t *ss = enx_global_ss;
436 eibnx_thr_info_t *ti_list;
437 eibnx_thr_info_t *ti;
438 eibnx_thr_info_t *ti_next;
439
440 mutex_enter(&ss->nx_lock);
441 ti_list = ss->nx_thr_info;
442 ss->nx_thr_info = NULL;
443 mutex_exit(&ss->nx_lock);
444
445 /*
446 * Ask all the port_monitor threads to die. Before marking them
447 * for death, make sure there aren't any completions being
448 * processed by the thread.
449 */
450 for (ti = ti_list; ti; ti = ti_next) {
451 ti_next = ti->ti_next;
452 eibnx_stop_port_monitor(ti);
453 }
454
455 mutex_enter(&ss->nx_lock);
456 ss->nx_monitors_up = B_FALSE;
457 mutex_exit(&ss->nx_lock);
458 }
459
460 int
eibnx_configure_node(eibnx_thr_info_t * ti,eibnx_gw_info_t * gwi,dev_info_t ** childp)461 eibnx_configure_node(eibnx_thr_info_t *ti, eibnx_gw_info_t *gwi,
462 dev_info_t **childp)
463 {
464 eibnx_t *ss = enx_global_ss;
465 dev_info_t *child_dip;
466 char *node_name;
467 int ret;
468
469 /*
470 * Prepare the new node's name
471 */
472 if ((node_name = eibnx_make_nodename(ti, gwi->gw_portid)) == NULL)
473 return (ENX_E_FAILURE);
474
475 ndi_devi_enter(ss->nx_dip);
476
477 if (child_dip = ndi_devi_findchild(ss->nx_dip, node_name)) {
478 ret = eibnx_update_child(ti, gwi, child_dip);
479 if (ret == ENX_E_SUCCESS) {
480 ndi_devi_exit(ss->nx_dip);
481 kmem_free(node_name, MAXNAMELEN);
482
483 if (childp) {
484 *childp = child_dip;
485 }
486 return (ENX_E_SUCCESS);
487 }
488 }
489
490 /*
491 * If the node does not already exist, we may need to create it
492 */
493 if (child_dip == NULL) {
494 ndi_devi_alloc_sleep(ss->nx_dip, EIB_DRV_NAME,
495 (pnode_t)DEVI_SID_NODEID, &child_dip);
496
497 ddi_set_parent_data(child_dip, node_name);
498 eibnx_create_node_props(child_dip, ti, gwi);
499 }
500
501 /*
502 * Whether there was no devinfo node at all for the given node name or
503 * we had a devinfo node, but it wasn't in our list of eoib children,
504 * we'll try to online the instance here.
505 */
506 ENX_DPRINTF_DEBUG("onlining %s", node_name);
507 ret = ndi_devi_online(child_dip, 0);
508 if (ret != NDI_SUCCESS) {
509 ENX_DPRINTF_ERR("ndi_devi_online(node_name=%s) failed "
510 "with ret=0x%x", node_name, ret);
511
512 ddi_set_parent_data(child_dip, NULL);
513 (void) ndi_devi_free(child_dip);
514
515 ndi_devi_exit(ss->nx_dip);
516 kmem_free(node_name, MAXNAMELEN);
517
518 return (ENX_E_FAILURE);
519 }
520
521 eibnx_enqueue_child(ti, gwi, node_name, child_dip);
522
523 ndi_devi_exit(ss->nx_dip);
524
525 if (childp) {
526 *childp = child_dip;
527 }
528
529 return (ENX_E_SUCCESS);
530 }
531
532 int
eibnx_unconfigure_node(eibnx_thr_info_t * ti,eibnx_gw_info_t * gwi)533 eibnx_unconfigure_node(eibnx_thr_info_t *ti, eibnx_gw_info_t *gwi)
534 {
535 /*
536 * To unconfigure an eoib node, we only need to set the child's
537 * dip to NULL. When the node gets configured again, we either
538 * find the dip for the pathname and set it in this child, or
539 * allocate a new dip and set it in this child.
540 */
541 return (eibnx_update_child(ti, gwi, NULL));
542 }
543
544 int
eibnx_locate_node_name(char * devname,eibnx_thr_info_t ** ti_p,eibnx_gw_info_t ** gwi_p)545 eibnx_locate_node_name(char *devname, eibnx_thr_info_t **ti_p,
546 eibnx_gw_info_t **gwi_p)
547 {
548 eibnx_t *ss = enx_global_ss;
549 eibnx_thr_info_t *ti;
550 eibnx_gw_info_t *gwi;
551 char name[MAXNAMELEN];
552
553 /*
554 * Locate the port monitor thread info and gateway info
555 * that corresponds to the supplied devname.
556 */
557 mutex_enter(&ss->nx_lock);
558 for (ti = ss->nx_thr_info; ti; ti = ti->ti_next) {
559 if (ti->ti_ident[0] == '\0')
560 continue;
561
562 mutex_enter(&ti->ti_gw_lock);
563 for (gwi = ti->ti_gw; gwi; gwi = gwi->gw_next) {
564 (void) snprintf(name, MAXNAMELEN,
565 "%s@%s,%x", EIB_DRV_NAME, ti->ti_ident,
566 gwi->gw_portid);
567
568 if (strcmp(name, devname) == 0)
569 break;
570 }
571 mutex_exit(&ti->ti_gw_lock);
572
573 if (gwi) {
574 break;
575 }
576 }
577 mutex_exit(&ss->nx_lock);
578
579 if (ti == NULL || gwi == NULL) {
580 return (ENX_E_FAILURE);
581 }
582
583 *ti_p = ti;
584 *gwi_p = gwi;
585
586 return (ENX_E_SUCCESS);
587 }
588
589 int
eibnx_locate_unconfigured_node(eibnx_thr_info_t ** ti_p,eibnx_gw_info_t ** gwi_p)590 eibnx_locate_unconfigured_node(eibnx_thr_info_t **ti_p, eibnx_gw_info_t **gwi_p)
591 {
592 eibnx_t *ss = enx_global_ss;
593 eibnx_thr_info_t *ti;
594 eibnx_child_t *ch;
595
596 mutex_enter(&ss->nx_lock);
597 for (ti = ss->nx_thr_info; ti; ti = ti->ti_next) {
598 mutex_enter(&ti->ti_child_lock);
599 for (ch = ti->ti_child; ch; ch = ch->ch_next) {
600 if (ch->ch_dip == NULL) {
601 *ti_p = ti;
602 *gwi_p = ch->ch_gwi;
603
604 mutex_exit(&ti->ti_child_lock);
605 mutex_exit(&ss->nx_lock);
606
607 return (ENX_E_SUCCESS);
608 }
609 }
610 mutex_exit(&ti->ti_child_lock);
611 }
612 mutex_exit(&ss->nx_lock);
613
614 return (ENX_E_FAILURE);
615 }
616
617 static char *
eibnx_make_nodename(eibnx_thr_info_t * info,uint16_t gw_portid)618 eibnx_make_nodename(eibnx_thr_info_t *info, uint16_t gw_portid)
619 {
620 char *name;
621
622 if (info->ti_ident[0] == '\0')
623 return (NULL);
624
625 name = kmem_zalloc(MAXNAMELEN, KM_SLEEP);
626 (void) snprintf(name, MAXNAMELEN, "%s@%s,%x", EIB_DRV_NAME,
627 info->ti_ident, gw_portid);
628
629 return (name);
630 }
631