xref: /freebsd/sys/net/if_infiniband.c (revision 9768746b) 
1 /*-
2  * Copyright (c) 2020 Mellanox Technologies. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  */
25 
26 #include "opt_inet.h"
27 #include "opt_inet6.h"
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/devctl.h>
35 #include <sys/eventhandler.h>
36 #include <sys/kernel.h>
37 #include <sys/mbuf.h>
38 #include <sys/module.h>
39 #include <sys/socket.h>
40 #include <sys/sysctl.h>
41 
42 #include <net/bpf.h>
43 #include <net/ethernet.h>
44 #include <net/infiniband.h>
45 #include <net/if.h>
46 #include <net/if_var.h>
47 #include <net/if_private.h>
48 #include <net/if_dl.h>
49 #include <net/if_media.h>
50 #include <net/if_lagg.h>
51 #include <net/if_llatbl.h>
52 #include <net/if_types.h>
53 #include <net/netisr.h>
54 #include <net/route.h>
55 #include <netinet/if_ether.h>
56 #include <netinet/in.h>
57 #include <netinet/ip6.h>
58 #include <netinet6/in6_var.h>
59 #include <netinet6/nd6.h>
60 
61 #include <security/mac/mac_framework.h>
62 
63 /* if_lagg(4) support */
64 struct mbuf *(*lagg_input_infiniband_p)(struct ifnet *, struct mbuf *);
65 
66 #ifdef INET
67 static inline void
68 infiniband_ipv4_multicast_map(uint32_t addr,
69     const uint8_t *broadcast, uint8_t *buf)
70 {
71 	uint8_t scope;
72 
73 	addr = ntohl(addr);
74 	scope = broadcast[5] & 0xF;
75 
76 	buf[0] = 0;
77 	buf[1] = 0xff;
78 	buf[2] = 0xff;
79 	buf[3] = 0xff;
80 	buf[4] = 0xff;
81 	buf[5] = 0x10 | scope;
82 	buf[6] = 0x40;
83 	buf[7] = 0x1b;
84 	buf[8] = broadcast[8];
85 	buf[9] = broadcast[9];
86 	buf[10] = 0;
87 	buf[11] = 0;
88 	buf[12] = 0;
89 	buf[13] = 0;
90 	buf[14] = 0;
91 	buf[15] = 0;
92 	buf[16] = (addr >> 24) & 0xff;
93 	buf[17] = (addr >> 16) & 0xff;
94 	buf[18] = (addr >> 8) & 0xff;
95 	buf[19] = addr & 0xff;
96 }
97 #endif
98 
99 #ifdef INET6
100 static inline void
101 infiniband_ipv6_multicast_map(const struct in6_addr *addr,
102     const uint8_t *broadcast, uint8_t *buf)
103 {
104 	uint8_t scope;
105 
106 	scope = broadcast[5] & 0xF;
107 
108 	buf[0] = 0;
109 	buf[1] = 0xff;
110 	buf[2] = 0xff;
111 	buf[3] = 0xff;
112 	buf[4] = 0xff;
113 	buf[5] = 0x10 | scope;
114 	buf[6] = 0x60;
115 	buf[7] = 0x1b;
116 	buf[8] = broadcast[8];
117 	buf[9] = broadcast[9];
118 	memcpy(&buf[10], &addr->s6_addr[6], 10);
119 }
120 #endif
121 
122 /*
123  * This is for clients that have an infiniband_header in the mbuf.
124  */
125 void
126 infiniband_bpf_mtap(struct ifnet *ifp, struct mbuf *mb)
127 {
128 	struct infiniband_header *ibh;
129 	struct ether_header eh;
130 
131 	if (mb->m_len < sizeof(*ibh))
132 		return;
133 
134 	ibh = mtod(mb, struct infiniband_header *);
135 	eh.ether_type = ibh->ib_protocol;
136 	memset(eh.ether_shost, 0, ETHER_ADDR_LEN);
137 	memcpy(eh.ether_dhost, ibh->ib_hwaddr + 4, ETHER_ADDR_LEN);
138 	mb->m_data += sizeof(*ibh);
139 	mb->m_len -= sizeof(*ibh);
140 	mb->m_pkthdr.len -= sizeof(*ibh);
141 	bpf_mtap2(ifp->if_bpf, &eh, sizeof(eh), mb);
142 	mb->m_data -= sizeof(*ibh);
143 	mb->m_len += sizeof(*ibh);
144 	mb->m_pkthdr.len += sizeof(*ibh);
145 }
146 
147 static void
148 update_mbuf_csumflags(struct mbuf *src, struct mbuf *dst)
149 {
150 	int csum_flags = 0;
151 
152 	if (src->m_pkthdr.csum_flags & CSUM_IP)
153 		csum_flags |= (CSUM_IP_CHECKED|CSUM_IP_VALID);
154 	if (src->m_pkthdr.csum_flags & CSUM_DELAY_DATA)
155 		csum_flags |= (CSUM_DATA_VALID|CSUM_PSEUDO_HDR);
156 	if (src->m_pkthdr.csum_flags & CSUM_SCTP)
157 		csum_flags |= CSUM_SCTP_VALID;
158 	dst->m_pkthdr.csum_flags |= csum_flags;
159 	if (csum_flags & CSUM_DATA_VALID)
160 		dst->m_pkthdr.csum_data = 0xffff;
161 }
162 
163 /*
164  * Handle link-layer encapsulation requests.
165  */
166 static int
167 infiniband_requestencap(struct ifnet *ifp, struct if_encap_req *req)
168 {
169 	struct infiniband_header *ih;
170 	struct arphdr *ah;
171 	uint16_t etype;
172 	const uint8_t *lladdr;
173 
174 	if (req->rtype != IFENCAP_LL)
175 		return (EOPNOTSUPP);
176 
177 	if (req->bufsize < INFINIBAND_HDR_LEN)
178 		return (ENOMEM);
179 
180 	ih = (struct infiniband_header *)req->buf;
181 	lladdr = req->lladdr;
182 	req->lladdr_off = 0;
183 
184 	switch (req->family) {
185 	case AF_INET:
186 		etype = htons(ETHERTYPE_IP);
187 		break;
188 	case AF_INET6:
189 		etype = htons(ETHERTYPE_IPV6);
190 		break;
191 	case AF_ARP:
192 		ah = (struct arphdr *)req->hdata;
193 		ah->ar_hrd = htons(ARPHRD_INFINIBAND);
194 
195 		switch (ntohs(ah->ar_op)) {
196 		case ARPOP_REVREQUEST:
197 		case ARPOP_REVREPLY:
198 			etype = htons(ETHERTYPE_REVARP);
199 			break;
200 		case ARPOP_REQUEST:
201 		case ARPOP_REPLY:
202 		default:
203 			etype = htons(ETHERTYPE_ARP);
204 			break;
205 		}
206 
207 		if (req->flags & IFENCAP_FLAG_BROADCAST)
208 			lladdr = ifp->if_broadcastaddr;
209 		break;
210 	default:
211 		return (EAFNOSUPPORT);
212 	}
213 
214 	ih->ib_protocol = etype;
215 	ih->ib_reserved = 0;
216 	memcpy(ih->ib_hwaddr, lladdr, INFINIBAND_ADDR_LEN);
217 	req->bufsize = sizeof(struct infiniband_header);
218 
219 	return (0);
220 }
221 
222 static int
223 infiniband_resolve_addr(struct ifnet *ifp, struct mbuf *m,
224     const struct sockaddr *dst, struct route *ro, uint8_t *phdr,
225     uint32_t *pflags, struct llentry **plle)
226 {
227 #if defined(INET) || defined(INET6)
228 	struct infiniband_header *ih = (struct infiniband_header *)phdr;
229 #endif
230 	uint32_t lleflags = 0;
231 	int error = 0;
232 
233 	if (plle)
234 		*plle = NULL;
235 
236 	switch (dst->sa_family) {
237 #ifdef INET
238 	case AF_INET:
239 		if ((m->m_flags & (M_BCAST | M_MCAST)) == 0) {
240 			error = arpresolve(ifp, 0, m, dst, phdr, &lleflags, plle);
241 		} else {
242 			if (m->m_flags & M_BCAST) {
243 				memcpy(ih->ib_hwaddr, ifp->if_broadcastaddr,
244 				    INFINIBAND_ADDR_LEN);
245 			} else {
246 				infiniband_ipv4_multicast_map(
247 				    ((const struct sockaddr_in *)dst)->sin_addr.s_addr,
248 				    ifp->if_broadcastaddr, ih->ib_hwaddr);
249 			}
250 			ih->ib_protocol = htons(ETHERTYPE_IP);
251 			ih->ib_reserved = 0;
252 		}
253 		break;
254 #endif
255 #ifdef INET6
256 	case AF_INET6:
257 		if ((m->m_flags & M_MCAST) == 0) {
258 			int af = RO_GET_FAMILY(ro, dst);
259 			error = nd6_resolve(ifp, LLE_SF(af, 0), m, dst, phdr,
260 			    &lleflags, plle);
261 		} else {
262 			infiniband_ipv6_multicast_map(
263 			    &((const struct sockaddr_in6 *)dst)->sin6_addr,
264 			    ifp->if_broadcastaddr, ih->ib_hwaddr);
265 			ih->ib_protocol = htons(ETHERTYPE_IPV6);
266 			ih->ib_reserved = 0;
267 		}
268 		break;
269 #endif
270 	default:
271 		if_printf(ifp, "can't handle af%d\n", dst->sa_family);
272 		if (m != NULL)
273 			m_freem(m);
274 		return (EAFNOSUPPORT);
275 	}
276 
277 	if (error == EHOSTDOWN) {
278 		if (ro != NULL && (ro->ro_flags & RT_HAS_GW) != 0)
279 			error = EHOSTUNREACH;
280 	}
281 
282 	if (error != 0)
283 		return (error);
284 
285 	*pflags = RT_MAY_LOOP;
286 	if (lleflags & LLE_IFADDR)
287 		*pflags |= RT_L2_ME;
288 
289 	return (0);
290 }
291 
292 /*
293  * Infiniband output routine.
294  */
295 static int
296 infiniband_output(struct ifnet *ifp, struct mbuf *m,
297     const struct sockaddr *dst, struct route *ro)
298 {
299 	uint8_t linkhdr[INFINIBAND_HDR_LEN];
300 	uint8_t *phdr;
301 	struct llentry *lle = NULL;
302 	struct infiniband_header *ih;
303 	int error = 0;
304 	int hlen;	/* link layer header length */
305 	uint32_t pflags;
306 	bool addref;
307 
308 	NET_EPOCH_ASSERT();
309 
310 	addref = false;
311 	phdr = NULL;
312 	pflags = 0;
313 	if (ro != NULL) {
314 		/* XXX BPF uses ro_prepend */
315 		if (ro->ro_prepend != NULL) {
316 			phdr = ro->ro_prepend;
317 			hlen = ro->ro_plen;
318 		} else if (!(m->m_flags & (M_BCAST | M_MCAST))) {
319 			if ((ro->ro_flags & RT_LLE_CACHE) != 0) {
320 				lle = ro->ro_lle;
321 				if (lle != NULL &&
322 				    (lle->la_flags & LLE_VALID) == 0) {
323 					LLE_FREE(lle);
324 					lle = NULL;	/* redundant */
325 					ro->ro_lle = NULL;
326 				}
327 				if (lle == NULL) {
328 					/* if we lookup, keep cache */
329 					addref = 1;
330 				} else
331 					/*
332 					 * Notify LLE code that
333 					 * the entry was used
334 					 * by datapath.
335 					 */
336 					llentry_provide_feedback(lle);
337 			}
338 			if (lle != NULL) {
339 				phdr = lle->r_linkdata;
340 				hlen = lle->r_hdrlen;
341 				pflags = lle->r_flags;
342 			}
343 		}
344 	}
345 
346 #ifdef MAC
347 	error = mac_ifnet_check_transmit(ifp, m);
348 	if (error)
349 		goto bad;
350 #endif
351 
352 	M_PROFILE(m);
353 	if (ifp->if_flags & IFF_MONITOR) {
354 		error = ENETDOWN;
355 		goto bad;
356 	}
357 	if (!((ifp->if_flags & IFF_UP) &&
358 	    (ifp->if_drv_flags & IFF_DRV_RUNNING))) {
359 		error = ENETDOWN;
360 		goto bad;
361 	}
362 
363 	if (phdr == NULL) {
364 		/* No prepend data supplied. Try to calculate ourselves. */
365 		phdr = linkhdr;
366 		hlen = INFINIBAND_HDR_LEN;
367 		error = infiniband_resolve_addr(ifp, m, dst, ro, phdr, &pflags,
368 		    addref ? &lle : NULL);
369 		if (addref && lle != NULL)
370 			ro->ro_lle = lle;
371 		if (error != 0)
372 			return (error == EWOULDBLOCK ? 0 : error);
373 	}
374 
375 	if ((pflags & RT_L2_ME) != 0) {
376 		update_mbuf_csumflags(m, m);
377 		return (if_simloop(ifp, m, RO_GET_FAMILY(ro, dst), 0));
378 	}
379 
380 	/*
381 	 * Add local infiniband header. If no space in first mbuf,
382 	 * allocate another.
383 	 */
384 	M_PREPEND(m, INFINIBAND_HDR_LEN, M_NOWAIT);
385 	if (m == NULL) {
386 		error = ENOBUFS;
387 		goto bad;
388 	}
389 	if ((pflags & RT_HAS_HEADER) == 0) {
390 		ih = mtod(m, struct infiniband_header *);
391 		memcpy(ih, phdr, hlen);
392 	}
393 
394 	/*
395 	 * Queue message on interface, update output statistics if
396 	 * successful, and start output if interface not yet active.
397 	 */
398 	return (ifp->if_transmit(ifp, m));
399 bad:
400 	if (m != NULL)
401 		m_freem(m);
402 	return (error);
403 }
404 
405 /*
406  * Process a received Infiniband packet.
407  */
408 static void
409 infiniband_input(struct ifnet *ifp, struct mbuf *m)
410 {
411 	struct infiniband_header *ibh;
412 	struct epoch_tracker et;
413 	int isr;
414 
415 	CURVNET_SET_QUIET(ifp->if_vnet);
416 
417 	if ((ifp->if_flags & IFF_UP) == 0) {
418 		if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
419 		m_freem(m);
420 		goto done;
421 	}
422 
423 	ibh = mtod(m, struct infiniband_header *);
424 
425 	/*
426 	 * Reset layer specific mbuf flags to avoid confusing upper
427 	 * layers:
428 	 */
429 	m->m_flags &= ~M_VLANTAG;
430 	m_clrprotoflags(m);
431 
432 	if (INFINIBAND_IS_MULTICAST(ibh->ib_hwaddr)) {
433 		if (memcmp(ibh->ib_hwaddr, ifp->if_broadcastaddr,
434 		    ifp->if_addrlen) == 0)
435 			m->m_flags |= M_BCAST;
436 		else
437 			m->m_flags |= M_MCAST;
438 		if_inc_counter(ifp, IFCOUNTER_IMCASTS, 1);
439 	}
440 
441 	/* Let BPF have it before we strip the header. */
442 	INFINIBAND_BPF_MTAP(ifp, m);
443 
444 	/* Allow monitor mode to claim this frame, after stats are updated. */
445 	if (ifp->if_flags & IFF_MONITOR) {
446 		m_freem(m);
447 		goto done;
448 	}
449 
450 	/* Direct packet to correct FIB based on interface config. */
451 	M_SETFIB(m, ifp->if_fib);
452 
453 	/* Handle input from a lagg<N> port */
454 	if (ifp->if_type == IFT_INFINIBANDLAG) {
455 		KASSERT(lagg_input_infiniband_p != NULL,
456 		    ("%s: if_lagg not loaded!", __func__));
457 		m = (*lagg_input_infiniband_p)(ifp, m);
458 		if (__predict_false(m == NULL))
459 			goto done;
460 		ifp = m->m_pkthdr.rcvif;
461 	}
462 
463 	/*
464 	 * Dispatch frame to upper layer.
465 	 */
466 	switch (ibh->ib_protocol) {
467 #ifdef INET
468 	case htons(ETHERTYPE_IP):
469 		isr = NETISR_IP;
470 		break;
471 
472 	case htons(ETHERTYPE_ARP):
473 		if (ifp->if_flags & IFF_NOARP) {
474 			/* Discard packet if ARP is disabled on interface */
475 			m_freem(m);
476 			goto done;
477 		}
478 		isr = NETISR_ARP;
479 		break;
480 #endif
481 #ifdef INET6
482 	case htons(ETHERTYPE_IPV6):
483 		isr = NETISR_IPV6;
484 		break;
485 #endif
486 	default:
487 		if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
488 		m_freem(m);
489 		goto done;
490 	}
491 
492 	/* Strip off the Infiniband header. */
493 	m_adj(m, INFINIBAND_HDR_LEN);
494 
495 #ifdef MAC
496 	/*
497 	 * Tag the mbuf with an appropriate MAC label before any other
498 	 * consumers can get to it.
499 	 */
500 	mac_ifnet_create_mbuf(ifp, m);
501 #endif
502 	/* Allow monitor mode to claim this frame, after stats are updated. */
503 	NET_EPOCH_ENTER(et);
504 	netisr_dispatch(isr, m);
505 	NET_EPOCH_EXIT(et);
506 done:
507 	CURVNET_RESTORE();
508 }
509 
510 static int
511 infiniband_resolvemulti(struct ifnet *ifp, struct sockaddr **llsa,
512     struct sockaddr *sa)
513 {
514 	struct sockaddr_dl *sdl;
515 #ifdef INET
516 	struct sockaddr_in *sin;
517 #endif
518 #ifdef INET6
519 	struct sockaddr_in6 *sin6;
520 #endif
521 	uint8_t *e_addr;
522 
523 	switch (sa->sa_family) {
524 	case AF_LINK:
525 		/*
526 		 * No mapping needed. Just check that it's a valid MC address.
527 		 */
528 		sdl = (struct sockaddr_dl *)sa;
529 		e_addr = LLADDR(sdl);
530 		if (!INFINIBAND_IS_MULTICAST(e_addr))
531 			return (EADDRNOTAVAIL);
532 		*llsa = NULL;
533 		return 0;
534 
535 #ifdef INET
536 	case AF_INET:
537 		sin = (struct sockaddr_in *)sa;
538 		if (!IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
539 			return (EADDRNOTAVAIL);
540 		sdl = link_init_sdl(ifp, *llsa, IFT_INFINIBAND);
541 		sdl->sdl_alen = INFINIBAND_ADDR_LEN;
542 		e_addr = LLADDR(sdl);
543 		infiniband_ipv4_multicast_map(
544 		    sin->sin_addr.s_addr, ifp->if_broadcastaddr, e_addr);
545 		*llsa = (struct sockaddr *)sdl;
546 		return (0);
547 #endif
548 #ifdef INET6
549 	case AF_INET6:
550 		sin6 = (struct sockaddr_in6 *)sa;
551 		/*
552 		 * An IP6 address of 0 means listen to all of the
553 		 * multicast address used for IP6. This has no meaning
554 		 * in infiniband.
555 		 */
556 		if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr))
557 			return (EADDRNOTAVAIL);
558 		if (!IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
559 			return (EADDRNOTAVAIL);
560 		sdl = link_init_sdl(ifp, *llsa, IFT_INFINIBAND);
561 		sdl->sdl_alen = INFINIBAND_ADDR_LEN;
562 		e_addr = LLADDR(sdl);
563 		infiniband_ipv6_multicast_map(
564 		    &sin6->sin6_addr, ifp->if_broadcastaddr, e_addr);
565 		*llsa = (struct sockaddr *)sdl;
566 		return (0);
567 #endif
568 	default:
569 		return (EAFNOSUPPORT);
570 	}
571 }
572 
573 void
574 infiniband_ifattach(struct ifnet *ifp, const uint8_t *lla, const uint8_t *llb)
575 {
576 	struct sockaddr_dl *sdl;
577 	struct ifaddr *ifa;
578 	int i;
579 
580 	ifp->if_addrlen = INFINIBAND_ADDR_LEN;
581 	ifp->if_hdrlen = INFINIBAND_HDR_LEN;
582 	ifp->if_mtu = INFINIBAND_MTU;
583 	if_attach(ifp);
584 	ifp->if_output = infiniband_output;
585 	ifp->if_input = infiniband_input;
586 	ifp->if_resolvemulti = infiniband_resolvemulti;
587 	ifp->if_requestencap = infiniband_requestencap;
588 
589 	if (ifp->if_baudrate == 0)
590 		ifp->if_baudrate = IF_Gbps(10); /* default value */
591 	if (llb != NULL)
592 		ifp->if_broadcastaddr = llb;
593 
594 	ifa = ifp->if_addr;
595 	KASSERT(ifa != NULL, ("%s: no lladdr!\n", __func__));
596 	sdl = (struct sockaddr_dl *)ifa->ifa_addr;
597 	sdl->sdl_type = IFT_INFINIBAND;
598 	sdl->sdl_alen = ifp->if_addrlen;
599 
600 	if (lla != NULL) {
601 		memcpy(LLADDR(sdl), lla, ifp->if_addrlen);
602 
603 		if (ifp->if_hw_addr != NULL)
604 			memcpy(ifp->if_hw_addr, lla, ifp->if_addrlen);
605 	} else {
606 		lla = LLADDR(sdl);
607 	}
608 
609 	/* Attach ethernet compatible network device */
610 	bpfattach(ifp, DLT_EN10MB, ETHER_HDR_LEN);
611 
612 	/* Announce Infiniband MAC address if non-zero. */
613 	for (i = 0; i < ifp->if_addrlen; i++)
614 		if (lla[i] != 0)
615 			break;
616 	if (i != ifp->if_addrlen)
617 		if_printf(ifp, "Infiniband address: %20D\n", lla, ":");
618 
619 	/* Add necessary bits are setup; announce it now. */
620 	EVENTHANDLER_INVOKE(infiniband_ifattach_event, ifp);
621 
622 	if (IS_DEFAULT_VNET(curvnet))
623 		devctl_notify("INFINIBAND", ifp->if_xname, "IFATTACH", NULL);
624 }
625 
626 /*
627  * Perform common duties while detaching an Infiniband interface
628  */
629 void
630 infiniband_ifdetach(struct ifnet *ifp)
631 {
632 	bpfdetach(ifp);
633 	if_detach(ifp);
634 }
635 
636 static int
637 infiniband_modevent(module_t mod, int type, void *data)
638 {
639 	switch (type) {
640 	case MOD_LOAD:
641 	case MOD_UNLOAD:
642 		return (0);
643 	default:
644 		return (EOPNOTSUPP);
645 	}
646 }
647 
648 static moduledata_t infiniband_mod = {
649 	.name = "if_infiniband",
650 	.evhand = &infiniband_modevent,
651 };
652 
653 DECLARE_MODULE(if_infiniband, infiniband_mod, SI_SUB_INIT_IF, SI_ORDER_ANY);
654 MODULE_VERSION(if_infiniband, 1);
655