xref: /illumos-gate/usr/src/uts/common/io/ib/mgt/ibcm/ibcm_arp.c (revision da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0)
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 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include <sys/types.h>
29 #include <sys/ddi.h>
30 #include <sys/sunddi.h>
31 #include <sys/stropts.h>
32 #include <sys/stream.h>
33 #include <sys/strsun.h>
34 #include <sys/strsubr.h>
35 #include <sys/socket.h>
36 #include <sys/stat.h>
37 #include <net/if_arp.h>
38 #include <sys/file.h>
39 #include <sys/sockio.h>
40 #include <sys/pathname.h>
41 #include <inet/arp.h>
42 #include <sys/modctl.h>
43 
44 #include <sys/ib/mgt/ibcm/ibcm_arp.h>
45 
46 #include <sys/kstr.h>
47 #include <sys/tiuser.h>
48 #include <sys/t_kuser.h>
49 
50 extern char cmlog[];
51 
52 extern int ibcm_arp_pr_lookup(ibcm_arp_streams_t *ib_s, ibt_ip_addr_t *dst_addr,
53     ibt_ip_addr_t *src_addr, uint8_t localroute, uint32_t bound_dev_if,
54     ibcm_arp_pr_comp_func_t func);
55 extern void ibcm_arp_pr_arp_ack(mblk_t *mp);
56 extern void ibcm_arp_prwqn_delete(ibcm_arp_prwqn_t *wqnp);
57 
58 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", datab))
59 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", ibt_ip_addr_s))
60 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", ibcm_arp_ip_t))
61 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", ibcm_arp_ibd_insts_t))
62 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", ibcm_arp_prwqn_t))
63 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", iocblk))
64 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", msgb))
65 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", queue))
66 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", sockaddr_in))
67 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", sockaddr_in6))
68 
69 /*
70  * ibcm_arp_get_ibaddr_cb
71  */
72 static int
73 ibcm_arp_get_ibaddr_cb(void *arg, int status)
74 {
75 	ibcm_arp_prwqn_t	*wqnp = (ibcm_arp_prwqn_t *)arg;
76 	ibcm_arp_streams_t	*ib_s = (ibcm_arp_streams_t *)wqnp->arg;
77 
78 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_get_ibaddr_cb(ib_s: %p wqnp: %p)",
79 	    ib_s, wqnp);
80 
81 	mutex_enter(&ib_s->lock);
82 	ib_s->status = status;
83 
84 	IBTF_DPRINTF_L3(cmlog, "ibcm_arp_get_ibaddr_cb: SGID %llX:%llX "
85 	    "DGID: %llX:%llX", wqnp->sgid.gid_prefix, wqnp->sgid.gid_guid,
86 	    wqnp->dgid.gid_prefix, wqnp->dgid.gid_guid);
87 
88 	/* lock is held by the caller. */
89 	cv_signal(&ib_s->cv);
90 	mutex_exit(&ib_s->lock);
91 	return (0);
92 }
93 
94 /*
95  * Lower read service procedure (messages coming back from arp/ip).
96  * Process messages based on queue type.
97  */
98 static int
99 ibcm_arp_lrsrv(queue_t *q)
100 {
101 	mblk_t *mp;
102 	ibcm_arp_streams_t *ib_s = q->q_ptr;
103 
104 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_lrsrv(%p, ibd_s: 0x%p)", q, ib_s);
105 
106 	if (WR(q) == ib_s->arpqueue) {
107 		while (mp = getq(q)) {
108 			ibcm_arp_pr_arp_ack(mp);
109 		}
110 	} else {
111 		freemsg(mp);
112 	}
113 
114 	return (0);
115 }
116 
117 /*
118  * Lower write service procedure.
119  * Used when lower streams are flow controlled.
120  */
121 static int
122 ibcm_arp_lwsrv(queue_t *q)
123 {
124 	mblk_t *mp;
125 
126 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_lwsrv(%p)", q);
127 
128 	while (mp = getq(q)) {
129 		if (canputnext(q)) {
130 			putnext(q, mp);
131 		} else {
132 			(void) putbq(q, mp);
133 			qenable(q);
134 			break;
135 		}
136 	}
137 
138 	return (0);
139 }
140 
141 /*
142  * Lower read put procedure. Arp/ip messages come here.
143  */
144 static int
145 ibcm_arp_lrput(queue_t *q, mblk_t *mp)
146 {
147 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_lrput(0x%p, db_type: %d)",
148 	    q, DB_TYPE(mp));
149 
150 	switch (DB_TYPE(mp)) {
151 		case M_FLUSH:
152 			/*
153 			 * Turn around
154 			 */
155 			if (*mp->b_rptr & FLUSHW) {
156 				*mp->b_rptr &= ~FLUSHR;
157 				qreply(q, mp);
158 				return (0);
159 			}
160 			freemsg(mp);
161 			break;
162 		case M_IOCACK:
163 		case M_IOCNAK:
164 		case M_DATA:
165 			/*
166 			 * This could be in interrupt context.
167 			 * Some of the ibt calls cannot be called in
168 			 * interrupt context, so
169 			 * put it in the queue and the message will be
170 			 * processed by service proccedure
171 			 */
172 			(void) putq(q, mp);
173 			qenable(q);
174 			break;
175 		default:
176 			IBTF_DPRINTF_L2(cmlog, "ibcm_arp_lrput: "
177 			    "got unknown msg <0x%x>\n", mp->b_datap->db_type);
178 			ASSERT(0);
179 			break;
180 	}
181 
182 	return (0);
183 }
184 
185 /*
186  * Streams write queue module info
187  */
188 static struct module_info ibcm_arp_winfo = {
189 	0,		/* module ID number */
190 	"ibcm",		/* module name */
191 	0,		/* min packet size */
192 	INFPSZ,
193 	49152,		/* STREAM queue high water mark -- 49152 */
194 	12		/* STREAM queue low water mark -- 12 */
195 };
196 
197 /*
198  * Streams lower write queue, for ibcm/ip requests.
199  */
200 static struct qinit ibcm_arp_lwinit = {
201 	NULL,		/* qi_putp */
202 	ibcm_arp_lwsrv,	/* qi_srvp */
203 	NULL,		/* qi_qopen */
204 	NULL,		/* qi_qclose */
205 	NULL,		/* qi_qadmin */
206 	&ibcm_arp_winfo,	/* module info */
207 	NULL,		/* module statistics struct */
208 	NULL,
209 	NULL,
210 	STRUIOT_NONE	/* stream uio type is standard uiomove() */
211 };
212 
213 /*
214  * Streams lower read queue: read reply messages from ibcm/ip.
215  */
216 static struct qinit ibcm_arp_lrinit = {
217 	ibcm_arp_lrput,	/* qi_putp */
218 	ibcm_arp_lrsrv,	/* qi_srvp */
219 	NULL,		/* qi_qopen */
220 	NULL,		/* qi_qclose */
221 	NULL,		/* qi_qadmin */
222 	&ibcm_arp_winfo,	/* module info */
223 	NULL,		/* module statistics struct */
224 	NULL,
225 	NULL,
226 	STRUIOT_NONE /* stream uio type is standard uiomove() */
227 };
228 
229 
230 static int
231 ibcm_arp_link_driver(ibcm_arp_streams_t *ib_s, char *path, queue_t **q,
232     vnode_t **dev_vp)
233 {
234 	struct stdata *dev_stp;
235 	vnode_t *vp;
236 	int error;
237 	queue_t *rq;
238 
239 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_link_driver: Enter: %s", path);
240 
241 	/* open the driver from inside the kernel */
242 	error = vn_open(path, UIO_SYSSPACE, FREAD|FWRITE, 0, &vp,
243 	    0, NULL);
244 	if (error) {
245 		IBTF_DPRINTF_L2(cmlog, "ibcm_arp_link_driver: "
246 		    "vn_open('%s') failed\n", path);
247 		return (error);
248 	}
249 	*dev_vp = vp;
250 
251 	dev_stp = vp->v_stream;
252 	*q = dev_stp->sd_wrq;
253 
254 	VN_HOLD(vp);
255 
256 	rq = RD(dev_stp->sd_wrq);
257 	RD(rq)->q_ptr = WR(rq)->q_ptr = ib_s;
258 	setq(rq, &ibcm_arp_lrinit, &ibcm_arp_lwinit, NULL, QMTSAFE,
259 	    SQ_CI|SQ_CO, B_FALSE);
260 
261 	return (0);
262 }
263 
264 extern struct qinit strdata;
265 extern struct qinit stwdata;
266 
267 /*
268  * Unlink ip, ibcm, icmp6 drivers
269  */
270 /* ARGSUSED */
271 static int
272 ibcm_arp_unlink_driver(queue_t **q, vnode_t **dev_vp)
273 {
274 	vnode_t *vp = *dev_vp;
275 	struct stdata *dev_stp = vp->v_stream;
276 	queue_t *wrq, *rq;
277 	int	rc;
278 
279 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_unlink_driver: Enter: 0x%p", q);
280 
281 	wrq = dev_stp->sd_wrq;
282 	rq = RD(wrq);
283 
284 	disable_svc(rq);
285 	wait_svc(rq);
286 	flushq(rq, FLUSHALL);
287 	flushq(WR(rq), FLUSHALL);
288 
289 	rq->q_ptr = wrq->q_ptr = dev_stp;
290 
291 	setq(rq, &strdata, &stwdata, NULL, QMTSAFE, SQ_CI|SQ_CO, B_TRUE);
292 
293 	if ((rc = VOP_CLOSE(vp, FREAD, 1, (offset_t)0, CRED(), NULL)) != 0) {
294 		IBTF_DPRINTF_L2(cmlog, "ibcm_arp_unlink_driver: VOP_CLOSE "
295 		    "failed %d\n", rc);
296 	}
297 	vn_rele(vp);
298 
299 	return (0);
300 }
301 
302 static int
303 ibcm_arp_unlink_drivers(ibcm_arp_streams_t *ib_s)
304 {
305 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_unlink_drivers(%p)", ib_s);
306 
307 	if (ib_s->arpqueue) {
308 		(void) ibcm_arp_unlink_driver(&ib_s->arpqueue, &ib_s->arp_vp);
309 	}
310 
311 	return (0);
312 }
313 
314 /*
315  * Link ip, ibtl drivers below ibtl
316  */
317 static int
318 ibcm_arp_link_drivers(ibcm_arp_streams_t *ib_s)
319 {
320 	int	rc;
321 
322 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_link_drivers(%p)", ib_s);
323 
324 	if ((rc = ibcm_arp_link_driver(ib_s, "/dev/arp", &ib_s->arpqueue,
325 	    &ib_s->arp_vp)) != 0) {
326 		IBTF_DPRINTF_L2(cmlog, "ibcm_arp_link_drivers: "
327 		    "ibcm_arp_link_driver failed: %d\n", rc);
328 		return (rc);
329 	}
330 
331 	return (0);
332 }
333 
334 ibt_status_t
335 ibcm_arp_get_ibaddr(ipaddr_t srcip, ipaddr_t destip, ib_gid_t *sgid,
336     ib_gid_t *dgid)
337 {
338 	ibcm_arp_streams_t	*ib_s;
339 	ibt_ip_addr_t		srcaddr, destaddr;
340 	int			ret;
341 
342 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_get_ibaddr(%lX, %lX, %p, %p)",
343 	    htonl(srcip), htonl(destip), sgid, dgid);
344 
345 	ib_s = (ibcm_arp_streams_t *)kmem_zalloc(sizeof (ibcm_arp_streams_t),
346 	    KM_SLEEP);
347 
348 	mutex_init(&ib_s->lock, NULL, MUTEX_DEFAULT, NULL);
349 	cv_init(&ib_s->cv, NULL, CV_DRIVER, NULL);
350 
351 	ret = ibcm_arp_link_drivers(ib_s);
352 	if (ret != 0) {
353 		IBTF_DPRINTF_L3(cmlog, "ibcm_arp_get_ibaddr: "
354 		    "ibcm_arp_link_drivers failed %d", ret);
355 		return (IBT_FAILURE);
356 	}
357 
358 	bzero(&destaddr, sizeof (ibt_ip_addr_t));
359 	bzero(&srcaddr, sizeof (ibt_ip_addr_t));
360 
361 	destaddr.family = AF_INET_OFFLOAD;
362 	destaddr.un.ip4addr = htonl(destip);
363 	srcaddr.family = AF_INET_OFFLOAD;
364 	srcaddr.un.ip4addr = htonl(srcip);
365 
366 	IBTF_DPRINTF_L3(cmlog, "ibcm_arp_get_ibaddr: SrcIP %lX, DstIP %lX",
367 	    srcaddr.un.ip4addr, destaddr.un.ip4addr);
368 	ret = ibcm_arp_pr_lookup(ib_s, &destaddr, &srcaddr, 0, NULL,
369 	    ibcm_arp_get_ibaddr_cb);
370 
371 	IBTF_DPRINTF_L3(cmlog, "ibcm_arp_get_ibaddr: ibcm_arp_pr_lookup "
372 	    "returned: %d", ret);
373 	if (ret == 0) {
374 		mutex_enter(&ib_s->lock);
375 		cv_wait(&ib_s->cv, &ib_s->lock);
376 		mutex_exit(&ib_s->lock);
377 	}
378 
379 	(void) ibcm_arp_unlink_drivers(ib_s);
380 	ret = ib_s->status;
381 	if (ret == 0) {
382 		if (sgid)
383 			*sgid = ib_s->wqnp->sgid;
384 		if (dgid)
385 			*dgid = ib_s->wqnp->dgid;
386 
387 		IBTF_DPRINTF_L4(cmlog, "ibcm_arp_get_ibaddr: SGID: %llX:%llX"
388 		    " DGID: %llX:%llX",
389 		    ib_s->wqnp->sgid.gid_prefix, ib_s->wqnp->sgid.gid_guid,
390 		    ib_s->wqnp->dgid.gid_prefix, ib_s->wqnp->dgid.gid_guid);
391 
392 		ibcm_arp_prwqn_delete(ib_s->wqnp);
393 	}
394 
395 	mutex_destroy(&ib_s->lock);
396 	cv_destroy(&ib_s->cv);
397 	kmem_free(ib_s, sizeof (ibcm_arp_streams_t));
398 
399 	if (ret)
400 		return (IBT_FAILURE);
401 	else
402 		return (IBT_SUCCESS);
403 }
404 
405 
406 /*
407  * Routine to get list of "local" IP-ADDR to GID/P_KEY mapping information.
408  * Optionally, if "gid" and/or "p_key" info are specified, then retrieve the
409  * IP-ADDR info for that attribute only.
410  */
411 
412 static ibcm_arp_ip_t *
413 ibcm_arp_ibd_gid2mac(ib_gid_t *gid, ib_pkey_t pkey, ibcm_arp_ibd_insts_t *ibdp)
414 {
415 	ibcm_arp_ip_t		*ipp;
416 	int			i;
417 
418 	for (i = 0, ipp = ibdp->ibcm_arp_ip; i < ibdp->ibcm_arp_ibd_cnt;
419 	    i++, ipp++) {
420 		if ((ipp->ip_port_gid.gid_prefix == gid->gid_prefix) &&
421 		    (ipp->ip_port_gid.gid_guid == gid->gid_guid)) {
422 			if (pkey) {
423 				if (ipp->ip_pkey == pkey)
424 					return (ipp);
425 				else
426 					continue;
427 			}
428 			return (ipp);
429 		}
430 	}
431 	return (NULL);
432 }
433 
434 static ibt_status_t
435 ibcm_arp_ibd_mac2gid(ibcm_arp_ibd_insts_t *ibdp, ipaddr_t srcip,
436     ib_gid_t *sgid)
437 {
438 	ibcm_arp_ip_t		*ipp;
439 	int			i;
440 
441 	for (i = 0, ipp = ibdp->ibcm_arp_ip; i < ibdp->ibcm_arp_ibd_cnt;
442 	    i++, ipp++) {
443 
444 		IBTF_DPRINTF_L4(cmlog, "ibcm_arp_ibd_mac2gid: Is %lX == %lX "
445 		    "GID %llX:%llX", srcip, ipp->ip_cm_sin.sin_addr,
446 		    ipp->ip_port_gid.gid_prefix, ipp->ip_port_gid.gid_guid);
447 
448 		if (bcmp(&srcip, &ipp->ip_cm_sin.sin_addr, sizeof (in_addr_t))
449 		    == 0) {
450 			*sgid = ipp->ip_port_gid;
451 
452 			IBTF_DPRINTF_L4(cmlog, "ibcm_arp_ibd_mac2gid: Found "
453 			    "GID %llX:%llX", sgid->gid_prefix, sgid->gid_guid);
454 			return (IBT_SUCCESS);
455 		}
456 	}
457 	IBTF_DPRINTF_L3(cmlog, "ibcm_arp_ibd_mac2gid: Matching SRC info "
458 	    "NOT Found");
459 	return (IBT_SRC_IP_NOT_FOUND);
460 }
461 
462 static int
463 ibcm_arp_get_ibd_insts_cb(dev_info_t *dip, void *arg)
464 {
465 	ibcm_arp_ibd_insts_t *ibds = (ibcm_arp_ibd_insts_t *)arg;
466 	ibcm_arp_ip_t	*ipp;
467 	ib_pkey_t	pkey;
468 	uint8_t		port;
469 	ib_guid_t	hca_guid;
470 	ib_gid_t	port_gid;
471 
472 	if (i_ddi_devi_attached(dip) &&
473 	    (strcmp(ddi_node_name(dip), "ibport") == 0) &&
474 	    (strstr(ddi_get_name_addr(dip), "ipib") != NULL)) {
475 
476 		if (ibds->ibcm_arp_ibd_cnt >= ibds->ibcm_arp_ibd_alloc) {
477 			ibcm_arp_ip_t	*tmp = NULL;
478 			int		new_count = 0;
479 
480 			new_count = ibds->ibcm_arp_ibd_alloc +
481 			    IBCM_ARP_IBD_INSTANCES;
482 
483 			tmp = (ibcm_arp_ip_t *)kmem_zalloc(
484 			    new_count * sizeof (ibcm_arp_ip_t), KM_SLEEP);
485 			bcopy(ibds->ibcm_arp_ip, tmp,
486 			    ibds->ibcm_arp_ibd_alloc * sizeof (ibcm_arp_ip_t));
487 			kmem_free(ibds->ibcm_arp_ip,
488 			    ibds->ibcm_arp_ibd_alloc * sizeof (ibcm_arp_ip_t));
489 			ibds->ibcm_arp_ibd_alloc = new_count;
490 			ibds->ibcm_arp_ip = tmp;
491 		}
492 
493 		if (((hca_guid = ddi_prop_get_int64(DDI_DEV_T_ANY, dip, 0,
494 		    "hca-guid", 0)) == 0) ||
495 		    ((port = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 0,
496 		    "port-number", 0)) == 0) ||
497 		    (ibt_get_port_state_byguid(hca_guid, port, &port_gid,
498 		    NULL) != IBT_SUCCESS) ||
499 		    ((pkey = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 0,
500 		    "port-pkey", IB_PKEY_INVALID_LIMITED)) <=
501 		    IB_PKEY_INVALID_FULL)) {
502 			return (DDI_WALK_CONTINUE);
503 		}
504 
505 		ipp = &ibds->ibcm_arp_ip[ibds->ibcm_arp_ibd_cnt];
506 		ipp->ip_inst = ddi_get_instance(dip);
507 		ipp->ip_pkey = pkey;
508 		ipp->ip_hca_guid = hca_guid;
509 		ipp->ip_port_gid = port_gid;
510 		ibds->ibcm_arp_ibd_cnt++;
511 	}
512 	return (DDI_WALK_CONTINUE);
513 }
514 
515 static void
516 ibcm_arp_get_ibd_insts(ibcm_arp_ibd_insts_t *ibds)
517 {
518 	ddi_walk_devs(ddi_root_node(), ibcm_arp_get_ibd_insts_cb, ibds);
519 }
520 
521 /*
522  * Return ibd interfaces and ibd instances.
523  */
524 static int
525 ibcm_arp_get_ibd_ipaddr(ibcm_arp_ibd_insts_t *ibds)
526 {
527 	TIUSER			*tiptr;
528 	vnode_t			*kvp;
529 	vnode_t			*vp = NULL;
530 	struct strioctl		iocb;
531 	struct lifreq		lif_req;
532 	int			k, ip_cnt;
533 	ibcm_arp_ip_t		*ipp;
534 
535 	if (lookupname("/dev/udp", UIO_SYSSPACE, FOLLOW, NULLVPP, &kvp) == 0) {
536 		if (t_kopen((file_t *)NULL, kvp->v_rdev, FREAD|FWRITE,
537 		    &tiptr, CRED()) == 0) {
538 			vp = tiptr->fp->f_vnode;
539 		} else {
540 			VN_RELE(kvp);
541 		}
542 	}
543 
544 	if (vp == NULL)
545 		return (-1);
546 
547 	/* Get ibd ip's */
548 	ip_cnt = 0;
549 	for (k = 0, ipp = ibds->ibcm_arp_ip; k < ibds->ibcm_arp_ibd_cnt;
550 	    k++, ipp++) {
551 
552 		(void) bzero((void *)&lif_req, sizeof (struct lifreq));
553 		(void) snprintf(lif_req.lifr_name, sizeof (lif_req.lifr_name),
554 		    "%s%d", IBCM_ARP_IBD_NAME, ipp->ip_inst);
555 
556 		(void) bzero((void *)&iocb, sizeof (struct strioctl));
557 		iocb.ic_cmd = SIOCGLIFADDR;
558 		iocb.ic_timout = 0;
559 		iocb.ic_len = sizeof (struct lifreq);
560 		iocb.ic_dp = (caddr_t)&lif_req;
561 
562 		if (kstr_ioctl(vp, I_STR, (intptr_t)&iocb) == 0) {
563 			ipp->ip_inet_family = AF_INET;
564 			bcopy(&lif_req.lifr_addr, &ipp->ip_cm_sin,
565 			    sizeof (struct sockaddr_in));
566 			ip_cnt++;
567 			continue;
568 		}
569 	}
570 
571 	(void) t_kclose(tiptr, 0);
572 	VN_RELE(kvp);
573 
574 	if (ip_cnt == 0)
575 		return (-1);
576 	else
577 		return (0);
578 }
579 
580 ibt_status_t
581 ibcm_arp_get_ibds(ibcm_arp_ibd_insts_t *ibdp)
582 {
583 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_get_ibds(%p)", ibdp);
584 
585 	ibcm_arp_get_ibd_insts(ibdp);
586 
587 	IBTF_DPRINTF_L3(cmlog, "ibcm_arp_get_ibds: Found %d ibd instances",
588 	    ibdp->ibcm_arp_ibd_cnt);
589 
590 	if (ibdp->ibcm_arp_ibd_cnt == 0)
591 		return (IBT_SRC_IP_NOT_FOUND);
592 
593 	/* Get the IP addresses of active ports. */
594 	if (ibcm_arp_get_ibd_ipaddr(ibdp) != 0) {
595 		IBTF_DPRINTF_L2(cmlog, "ibcm_arp_get_ibds: failed to get "
596 		    "ibd instance: IBT_SRC_IP_NOT_FOUND");
597 		return (IBT_SRC_IP_NOT_FOUND);
598 	}
599 
600 	return (IBT_SUCCESS);
601 }
602 
603 _NOTE(SCHEME_PROTECTS_DATA("Unshared data", ibtl_cm_port_list_t))
604 
605 ibt_status_t
606 ibcm_arp_get_srcip_plist(ibt_ip_path_attr_t *ipattr, ibt_path_flags_t flags,
607     ibtl_cm_port_list_t **port_list_p)
608 {
609 	ibt_path_attr_t		attr;
610 	ibt_status_t		ret;
611 	ibcm_arp_ibd_insts_t	ibds;
612 	ibcm_arp_ip_t		*ipp;
613 	ibtl_cm_port_list_t	*plistp;
614 	ib_gid_t		sgid;
615 
616 	IBTF_DPRINTF_L4(cmlog, "ibcm_arp_get_srcip_plist(%p, %llX)",
617 	    ipattr, flags);
618 
619 	sgid.gid_prefix = sgid.gid_guid = 0;
620 	bzero(&ibds, sizeof (ibcm_arp_ibd_insts_t));
621 	ibds.ibcm_arp_ibd_alloc = IBCM_ARP_IBD_INSTANCES;
622 	ibds.ibcm_arp_ibd_cnt = 0;
623 	ibds.ibcm_arp_ip = (ibcm_arp_ip_t *)kmem_zalloc(
624 	    ibds.ibcm_arp_ibd_alloc * sizeof (ibcm_arp_ip_t), KM_SLEEP);
625 
626 	ret = ibcm_arp_get_ibds(&ibds);
627 	if (ret != IBT_SUCCESS) {
628 		IBTF_DPRINTF_L2(cmlog, "ibcm_arp_get_srcip_plist: "
629 		    "ibcm_arp_get_ibds failed : 0x%x", ret);
630 		goto srcip_plist_end;
631 	}
632 
633 	if (ipattr->ipa_src_ip.family != AF_UNSPEC) {
634 		ret = ibcm_arp_ibd_mac2gid(&ibds,
635 		    htonl(ipattr->ipa_src_ip.un.ip4addr), &sgid);
636 		if (ret != IBT_SUCCESS) {
637 			IBTF_DPRINTF_L2(cmlog, "ibcm_arp_get_srcip_plist: "
638 			    "SGID for the specified SRCIP Not found %X", ret);
639 			goto srcip_plist_end;
640 		}
641 		IBTF_DPRINTF_L4(cmlog, "ibcm_arp_get_srcip_plist: SGID "
642 		    "%llX:%llX", sgid.gid_prefix, sgid.gid_guid);
643 	}
644 
645 	bzero(&attr, sizeof (ibt_path_attr_t));
646 	attr.pa_hca_guid = ipattr->ipa_hca_guid;
647 	attr.pa_hca_port_num = ipattr->ipa_hca_port_num;
648 	attr.pa_sgid = sgid;
649 	bcopy(&ipattr->ipa_mtu,  &attr.pa_mtu, sizeof (ibt_mtu_req_t));
650 	bcopy(&ipattr->ipa_srate,  &attr.pa_srate, sizeof (ibt_srate_req_t));
651 	bcopy(&ipattr->ipa_pkt_lt,  &attr.pa_pkt_lt, sizeof (ibt_pkt_lt_req_t));
652 
653 	ret = ibtl_cm_get_active_plist(&attr, flags, port_list_p);
654 	if (ret == IBT_SUCCESS) {
655 		int		i;
656 
657 		plistp = port_list_p[0];
658 		for (i = 0; i < plistp->p_count; i++, plistp++) {
659 			ipp = ibcm_arp_ibd_gid2mac(&plistp->p_sgid, 0, &ibds);
660 			if (ipp == NULL)
661 				plistp->p_src_ip.family = AF_UNSPEC;
662 			else {
663 				IBTF_DPRINTF_L4(cmlog,
664 				    "ibcm_arp_get_srcip_plist: GID %llX:%llX",
665 				    plistp->p_sgid.gid_prefix,
666 				    plistp->p_sgid.gid_guid);
667 				if (ipp->ip_inet_family == AF_INET) {
668 					plistp->p_src_ip.family = AF_INET;
669 					bcopy(&ipp->ip_cm_sin.sin_addr,
670 					    &plistp->p_src_ip.un.ip4addr,
671 					    sizeof (in_addr_t));
672 
673 					IBTF_DPRINTF_L4(cmlog,
674 					    "ibcm_arp_get_srcip_plist: SrcIP: "
675 					    "%lX", plistp->p_src_ip.un.ip4addr);
676 				} else if (ipp->ip_inet_family == AF_INET6) {
677 					plistp->p_src_ip.family = AF_INET6;
678 					bcopy(&ipp->ip_cm_sin6.sin6_addr,
679 					    &plistp->p_src_ip.un.ip6addr,
680 					    sizeof (in6_addr_t));
681 				}
682 			}
683 		}
684 	}
685 
686 srcip_plist_end:
687 	if (ibds.ibcm_arp_ip)
688 		kmem_free(ibds.ibcm_arp_ip, ibds.ibcm_arp_ibd_alloc *
689 		    sizeof (ibcm_arp_ip_t));
690 
691 	return (ret);
692 }
693 /* Routines for warlock */
694 
695 /* ARGSUSED */
696 static int
697 ibcm_arp_dummy_ibaddr_hdl(void *arg, int status)
698 {
699 	ibcm_arp_prwqn_t		dummy_wqn1;
700 	ibcm_arp_prwqn_t		dummy_wqn2;
701 
702 	dummy_wqn1.func = ibcm_arp_get_ibaddr_cb;
703 	dummy_wqn2.func = ibcm_arp_dummy_ibaddr_hdl;
704 
705 	IBTF_DPRINTF_L5(cmlog, "ibcm_arp_dummy_ibaddr_hdl: "
706 	    "dummy_wqn1.func %p %p", dummy_wqn1.func, dummy_wqn2.func);
707 
708 	return (0);
709 }
710