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 (c) 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2018 Joyent, Inc. 24 * Copyright 2016 OmniTI Computer Consulting, Inc. All rights reserved. 25 * Copyright 2020 OmniOS Community Edition (OmniOSce) Association. 26 */ 27 28 #include <sys/types.h> 29 #include <sys/cred.h> 30 #include <sys/sysmacros.h> 31 #include <sys/conf.h> 32 #include <sys/cmn_err.h> 33 #include <sys/list.h> 34 #include <sys/ksynch.h> 35 #include <sys/kmem.h> 36 #include <sys/stream.h> 37 #include <sys/modctl.h> 38 #include <sys/ddi.h> 39 #include <sys/sunddi.h> 40 #include <sys/atomic.h> 41 #include <sys/stat.h> 42 #include <sys/modhash.h> 43 #include <sys/strsubr.h> 44 #include <sys/strsun.h> 45 #include <sys/dlpi.h> 46 #include <sys/mac.h> 47 #include <sys/mac_provider.h> 48 #include <sys/mac_client.h> 49 #include <sys/mac_client_priv.h> 50 #include <sys/mac_ether.h> 51 #include <sys/dls.h> 52 #include <sys/pattr.h> 53 #include <sys/time.h> 54 #include <sys/vlan.h> 55 #include <sys/vnic.h> 56 #include <sys/vnic_impl.h> 57 #include <sys/mac_impl.h> 58 #include <sys/mac_flow_impl.h> 59 #include <inet/ip_impl.h> 60 61 /* 62 * Note that for best performance, the VNIC is a passthrough design. 63 * For each VNIC corresponds a MAC client of the underlying MAC (lower MAC). 64 * This MAC client is opened by the VNIC driver at VNIC creation, 65 * and closed when the VNIC is deleted. 66 * When a MAC client of the VNIC itself opens a VNIC, the MAC layer 67 * (upper MAC) detects that the MAC being opened is a VNIC. Instead 68 * of allocating a new MAC client, it asks the VNIC driver to return 69 * the lower MAC client handle associated with the VNIC, and that handle 70 * is returned to the upper MAC client directly. This allows access 71 * by upper MAC clients of the VNIC to have direct access to the lower 72 * MAC client for the control path and data path. 73 * 74 * Due to this passthrough, some of the entry points exported by the 75 * VNIC driver are never directly invoked. These entry points include 76 * vnic_m_start, vnic_m_stop, vnic_m_promisc, vnic_m_multicst, etc. 77 * 78 * VNICs support multiple upper mac clients to enable support for 79 * multiple MAC addresses on the VNIC. When the VNIC is created the 80 * initial mac client is the primary upper mac. Any additional mac 81 * clients are secondary macs. 82 */ 83 84 static int vnic_m_start(void *); 85 static void vnic_m_stop(void *); 86 static int vnic_m_promisc(void *, boolean_t); 87 static int vnic_m_multicst(void *, boolean_t, const uint8_t *); 88 static int vnic_m_unicst(void *, const uint8_t *); 89 static int vnic_m_stat(void *, uint_t, uint64_t *); 90 static void vnic_m_ioctl(void *, queue_t *, mblk_t *); 91 static int vnic_m_setprop(void *, const char *, mac_prop_id_t, uint_t, 92 const void *); 93 static int vnic_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *); 94 static void vnic_m_propinfo(void *, const char *, mac_prop_id_t, 95 mac_prop_info_handle_t); 96 static mblk_t *vnic_m_tx(void *, mblk_t *); 97 static boolean_t vnic_m_capab_get(void *, mac_capab_t, void *); 98 static void vnic_notify_cb(void *, mac_notify_type_t); 99 static void vnic_cleanup_secondary_macs(vnic_t *, int); 100 101 static kmem_cache_t *vnic_cache; 102 static krwlock_t vnic_lock; 103 static uint_t vnic_count; 104 105 #define ANCHOR_VNIC_MIN_MTU 576 106 #define ANCHOR_VNIC_MAX_MTU 9000 107 108 /* hash of VNICs (vnic_t's), keyed by VNIC id */ 109 static mod_hash_t *vnic_hash; 110 #define VNIC_HASHSZ 64 111 #define VNIC_HASH_KEY(vnic_id) ((mod_hash_key_t)(uintptr_t)vnic_id) 112 113 #define VNIC_M_CALLBACK_FLAGS \ 114 (MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP | MC_PROPINFO) 115 116 static mac_callbacks_t vnic_m_callbacks = { 117 VNIC_M_CALLBACK_FLAGS, 118 vnic_m_stat, 119 vnic_m_start, 120 vnic_m_stop, 121 vnic_m_promisc, 122 vnic_m_multicst, 123 vnic_m_unicst, 124 vnic_m_tx, 125 NULL, 126 vnic_m_ioctl, 127 vnic_m_capab_get, 128 NULL, 129 NULL, 130 vnic_m_setprop, 131 vnic_m_getprop, 132 vnic_m_propinfo 133 }; 134 135 void 136 vnic_dev_init(void) 137 { 138 vnic_cache = kmem_cache_create("vnic_cache", 139 sizeof (vnic_t), 0, NULL, NULL, NULL, NULL, NULL, 0); 140 141 vnic_hash = mod_hash_create_idhash("vnic_hash", 142 VNIC_HASHSZ, mod_hash_null_valdtor); 143 144 rw_init(&vnic_lock, NULL, RW_DEFAULT, NULL); 145 146 vnic_count = 0; 147 } 148 149 void 150 vnic_dev_fini(void) 151 { 152 ASSERT(vnic_count == 0); 153 154 rw_destroy(&vnic_lock); 155 mod_hash_destroy_idhash(vnic_hash); 156 kmem_cache_destroy(vnic_cache); 157 } 158 159 uint_t 160 vnic_dev_count(void) 161 { 162 return (vnic_count); 163 } 164 165 static vnic_ioc_diag_t 166 vnic_mac2vnic_diag(mac_diag_t diag) 167 { 168 switch (diag) { 169 case MAC_DIAG_MACADDR_NIC: 170 return (VNIC_IOC_DIAG_MACADDR_NIC); 171 case MAC_DIAG_MACADDR_INUSE: 172 return (VNIC_IOC_DIAG_MACADDR_INUSE); 173 case MAC_DIAG_MACADDR_INVALID: 174 return (VNIC_IOC_DIAG_MACADDR_INVALID); 175 case MAC_DIAG_MACADDRLEN_INVALID: 176 return (VNIC_IOC_DIAG_MACADDRLEN_INVALID); 177 case MAC_DIAG_MACFACTORYSLOTINVALID: 178 return (VNIC_IOC_DIAG_MACFACTORYSLOTINVALID); 179 case MAC_DIAG_MACFACTORYSLOTUSED: 180 return (VNIC_IOC_DIAG_MACFACTORYSLOTUSED); 181 case MAC_DIAG_MACFACTORYSLOTALLUSED: 182 return (VNIC_IOC_DIAG_MACFACTORYSLOTALLUSED); 183 case MAC_DIAG_MACFACTORYNOTSUP: 184 return (VNIC_IOC_DIAG_MACFACTORYNOTSUP); 185 case MAC_DIAG_MACPREFIX_INVALID: 186 return (VNIC_IOC_DIAG_MACPREFIX_INVALID); 187 case MAC_DIAG_MACPREFIXLEN_INVALID: 188 return (VNIC_IOC_DIAG_MACPREFIXLEN_INVALID); 189 case MAC_DIAG_MACNO_HWRINGS: 190 return (VNIC_IOC_DIAG_NO_HWRINGS); 191 default: 192 return (VNIC_IOC_DIAG_NONE); 193 } 194 } 195 196 static int 197 vnic_unicast_add(vnic_t *vnic, vnic_mac_addr_type_t vnic_addr_type, 198 int *addr_slot, uint_t prefix_len, int *addr_len_ptr_arg, 199 uint8_t *mac_addr_arg, uint16_t flags, vnic_ioc_diag_t *diag, 200 uint16_t vid, boolean_t req_hwgrp_flag) 201 { 202 mac_diag_t mac_diag = MAC_DIAG_NONE; 203 uint16_t mac_flags = 0; 204 int err; 205 uint_t addr_len; 206 207 if (flags & VNIC_IOC_CREATE_NODUPCHECK) 208 mac_flags |= MAC_UNICAST_NODUPCHECK; 209 210 switch (vnic_addr_type) { 211 case VNIC_MAC_ADDR_TYPE_FIXED: 212 case VNIC_MAC_ADDR_TYPE_VRID: 213 /* 214 * The MAC address value to assign to the VNIC 215 * is already provided in mac_addr_arg. addr_len_ptr_arg 216 * already contains the MAC address length. 217 */ 218 break; 219 220 case VNIC_MAC_ADDR_TYPE_RANDOM: 221 /* 222 * Random MAC address. There are two sub-cases: 223 * 224 * 1 - If mac_len == 0, a new MAC address is generated. 225 * The length of the MAC address to generated depends 226 * on the type of MAC used. The prefix to use for the MAC 227 * address is stored in the most significant bytes 228 * of the mac_addr argument, and its length is specified 229 * by the mac_prefix_len argument. This prefix can 230 * correspond to a IEEE OUI in the case of Ethernet, 231 * for example. 232 * 233 * 2 - If mac_len > 0, the address was already picked 234 * randomly, and is now passed back during VNIC 235 * re-creation. The mac_addr argument contains the MAC 236 * address that was generated. We distinguish this 237 * case from the fixed MAC address case, since we 238 * want the user consumers to know, when they query 239 * the list of VNICs, that a VNIC was assigned a 240 * random MAC address vs assigned a fixed address 241 * specified by the user. 242 */ 243 244 /* 245 * If it's a pre-generated address, we're done. mac_addr_arg 246 * and addr_len_ptr_arg already contain the MAC address 247 * value and length. 248 */ 249 if (*addr_len_ptr_arg > 0) 250 break; 251 252 /* generate a new random MAC address */ 253 if ((err = mac_addr_random(vnic->vn_mch, 254 prefix_len, mac_addr_arg, &mac_diag)) != 0) { 255 *diag = vnic_mac2vnic_diag(mac_diag); 256 return (err); 257 } 258 *addr_len_ptr_arg = mac_addr_len(vnic->vn_lower_mh); 259 break; 260 261 case VNIC_MAC_ADDR_TYPE_FACTORY: 262 err = mac_addr_factory_reserve(vnic->vn_mch, addr_slot); 263 if (err != 0) { 264 if (err == EINVAL) 265 *diag = VNIC_IOC_DIAG_MACFACTORYSLOTINVALID; 266 if (err == EBUSY) 267 *diag = VNIC_IOC_DIAG_MACFACTORYSLOTUSED; 268 if (err == ENOSPC) 269 *diag = VNIC_IOC_DIAG_MACFACTORYSLOTALLUSED; 270 return (err); 271 } 272 273 mac_addr_factory_value(vnic->vn_lower_mh, *addr_slot, 274 mac_addr_arg, &addr_len, NULL, NULL); 275 *addr_len_ptr_arg = addr_len; 276 break; 277 278 case VNIC_MAC_ADDR_TYPE_AUTO: 279 /* first try to allocate a factory MAC address */ 280 err = mac_addr_factory_reserve(vnic->vn_mch, addr_slot); 281 if (err == 0) { 282 mac_addr_factory_value(vnic->vn_lower_mh, *addr_slot, 283 mac_addr_arg, &addr_len, NULL, NULL); 284 vnic_addr_type = VNIC_MAC_ADDR_TYPE_FACTORY; 285 *addr_len_ptr_arg = addr_len; 286 break; 287 } 288 289 /* 290 * Allocating a factory MAC address failed, generate a 291 * random MAC address instead. 292 */ 293 if ((err = mac_addr_random(vnic->vn_mch, 294 prefix_len, mac_addr_arg, &mac_diag)) != 0) { 295 *diag = vnic_mac2vnic_diag(mac_diag); 296 return (err); 297 } 298 *addr_len_ptr_arg = mac_addr_len(vnic->vn_lower_mh); 299 vnic_addr_type = VNIC_MAC_ADDR_TYPE_RANDOM; 300 break; 301 case VNIC_MAC_ADDR_TYPE_PRIMARY: 302 /* 303 * We get the address here since we copy it in the 304 * vnic's vn_addr. 305 * We can't ask for hardware resources since we 306 * don't currently support hardware classification 307 * for these MAC clients. 308 */ 309 if (req_hwgrp_flag) { 310 *diag = VNIC_IOC_DIAG_NO_HWRINGS; 311 return (ENOTSUP); 312 } 313 mac_unicast_primary_get(vnic->vn_lower_mh, mac_addr_arg); 314 *addr_len_ptr_arg = mac_addr_len(vnic->vn_lower_mh); 315 mac_flags |= MAC_UNICAST_VNIC_PRIMARY; 316 break; 317 } 318 319 vnic->vn_addr_type = vnic_addr_type; 320 321 err = mac_unicast_add(vnic->vn_mch, mac_addr_arg, mac_flags, 322 &vnic->vn_muh, vid, &mac_diag); 323 if (err != 0) { 324 if (vnic_addr_type == VNIC_MAC_ADDR_TYPE_FACTORY) { 325 /* release factory MAC address */ 326 mac_addr_factory_release(vnic->vn_mch, *addr_slot); 327 } 328 *diag = vnic_mac2vnic_diag(mac_diag); 329 } 330 331 return (err); 332 } 333 334 /* 335 * Create a new VNIC upon request from administrator. 336 * Returns 0 on success, an errno on failure. 337 */ 338 /* ARGSUSED */ 339 int 340 vnic_dev_create(datalink_id_t vnic_id, datalink_id_t linkid, 341 vnic_mac_addr_type_t *vnic_addr_type, int *mac_len, uchar_t *mac_addr, 342 int *mac_slot, uint_t mac_prefix_len, uint16_t vid, vrid_t vrid, 343 int af, mac_resource_props_t *mrp, uint32_t flags, vnic_ioc_diag_t *diag, 344 cred_t *credp) 345 { 346 vnic_t *vnic; 347 mac_register_t *mac; 348 int err; 349 boolean_t is_anchor = ((flags & VNIC_IOC_CREATE_ANCHOR) != 0); 350 char vnic_name[MAXNAMELEN]; 351 const mac_info_t *minfop; 352 uint32_t req_hwgrp_flag = B_FALSE; 353 354 *diag = VNIC_IOC_DIAG_NONE; 355 356 rw_enter(&vnic_lock, RW_WRITER); 357 358 /* Does a VNIC with the same id already exist? */ 359 err = mod_hash_find(vnic_hash, VNIC_HASH_KEY(vnic_id), 360 (mod_hash_val_t *)&vnic); 361 if (err == 0) { 362 rw_exit(&vnic_lock); 363 return (EEXIST); 364 } 365 366 vnic = kmem_cache_alloc(vnic_cache, KM_NOSLEEP); 367 if (vnic == NULL) { 368 rw_exit(&vnic_lock); 369 return (ENOMEM); 370 } 371 372 bzero(vnic, sizeof (*vnic)); 373 374 vnic->vn_ls = LINK_STATE_UNKNOWN; 375 vnic->vn_id = vnic_id; 376 vnic->vn_link_id = linkid; 377 vnic->vn_vrid = vrid; 378 vnic->vn_af = af; 379 380 if (!is_anchor) { 381 if (linkid == DATALINK_INVALID_LINKID) { 382 err = EINVAL; 383 goto bail; 384 } 385 386 /* 387 * Open the lower MAC and assign its initial bandwidth and 388 * MAC address. We do this here during VNIC creation and 389 * do not wait until the upper MAC client open so that we 390 * can validate the VNIC creation parameters (bandwidth, 391 * MAC address, etc) and reserve a factory MAC address if 392 * one was requested. 393 */ 394 err = mac_open_by_linkid(linkid, &vnic->vn_lower_mh); 395 if (err != 0) 396 goto bail; 397 398 /* 399 * VNIC(vlan) over VNICs(vlans) is not supported. 400 */ 401 if (mac_is_vnic(vnic->vn_lower_mh)) { 402 err = EINVAL; 403 goto bail; 404 } 405 406 /* only ethernet support for now */ 407 minfop = mac_info(vnic->vn_lower_mh); 408 if (minfop->mi_nativemedia != DL_ETHER) { 409 err = ENOTSUP; 410 goto bail; 411 } 412 413 (void) dls_mgmt_get_linkinfo(vnic_id, vnic_name, NULL, NULL, 414 NULL); 415 err = mac_client_open(vnic->vn_lower_mh, &vnic->vn_mch, 416 vnic_name, MAC_OPEN_FLAGS_IS_VNIC); 417 if (err != 0) 418 goto bail; 419 420 /* assign a MAC address to the VNIC */ 421 422 err = vnic_unicast_add(vnic, *vnic_addr_type, mac_slot, 423 mac_prefix_len, mac_len, mac_addr, flags, diag, vid, 424 req_hwgrp_flag); 425 if (err != 0) { 426 vnic->vn_muh = NULL; 427 if (diag != NULL && req_hwgrp_flag) 428 *diag = VNIC_IOC_DIAG_NO_HWRINGS; 429 goto bail; 430 } 431 432 /* register to receive notification from underlying MAC */ 433 vnic->vn_mnh = mac_notify_add(vnic->vn_lower_mh, vnic_notify_cb, 434 vnic); 435 436 *vnic_addr_type = vnic->vn_addr_type; 437 vnic->vn_addr_len = *mac_len; 438 vnic->vn_vid = vid; 439 440 bcopy(mac_addr, vnic->vn_addr, vnic->vn_addr_len); 441 442 if (vnic->vn_addr_type == VNIC_MAC_ADDR_TYPE_FACTORY) 443 vnic->vn_slot_id = *mac_slot; 444 445 /* 446 * Set the initial VNIC capabilities. If the VNIC is created 447 * over MACs which does not support nactive vlan, disable 448 * VNIC's hardware checksum capability if its VID is not 0, 449 * since the underlying MAC would get the hardware checksum 450 * offset wrong in case of VLAN packets. 451 */ 452 if (vid == 0 || !mac_capab_get(vnic->vn_lower_mh, 453 MAC_CAPAB_NO_NATIVEVLAN, NULL)) { 454 if (!mac_capab_get(vnic->vn_lower_mh, MAC_CAPAB_HCKSUM, 455 &vnic->vn_hcksum_txflags)) 456 vnic->vn_hcksum_txflags = 0; 457 } else { 458 vnic->vn_hcksum_txflags = 0; 459 } 460 } 461 462 /* register with the MAC module */ 463 if ((mac = mac_alloc(MAC_VERSION)) == NULL) 464 goto bail; 465 466 mac->m_type_ident = MAC_PLUGIN_IDENT_ETHER; 467 mac->m_driver = vnic; 468 mac->m_dip = vnic_get_dip(); 469 mac->m_instance = (uint_t)-1; 470 mac->m_src_addr = vnic->vn_addr; 471 mac->m_callbacks = &vnic_m_callbacks; 472 473 if (!is_anchor) { 474 /* 475 * If this is a VNIC based VLAN, then we check for the 476 * margin unless it has been created with the force 477 * flag. If we are configuring a VLAN over an etherstub, 478 * we don't check the margin even if force is not set. 479 */ 480 if (vid == 0 || (flags & VNIC_IOC_CREATE_FORCE) != 0) { 481 if (vid != VLAN_ID_NONE) 482 vnic->vn_force = B_TRUE; 483 /* 484 * As the current margin size of the underlying mac is 485 * used to determine the margin size of the VNIC 486 * itself, request the underlying mac not to change 487 * to a smaller margin size. 488 */ 489 err = mac_margin_add(vnic->vn_lower_mh, 490 &vnic->vn_margin, B_TRUE); 491 ASSERT(err == 0); 492 } else { 493 vnic->vn_margin = VLAN_TAGSZ; 494 err = mac_margin_add(vnic->vn_lower_mh, 495 &vnic->vn_margin, B_FALSE); 496 if (err != 0) { 497 mac_free(mac); 498 if (diag != NULL) 499 *diag = VNIC_IOC_DIAG_MACMARGIN_INVALID; 500 goto bail; 501 } 502 } 503 504 mac_sdu_get(vnic->vn_lower_mh, &mac->m_min_sdu, 505 &mac->m_max_sdu); 506 err = mac_mtu_add(vnic->vn_lower_mh, &mac->m_max_sdu, B_FALSE); 507 if (err != 0) { 508 VERIFY(mac_margin_remove(vnic->vn_lower_mh, 509 vnic->vn_margin) == 0); 510 mac_free(mac); 511 if (diag != NULL) 512 *diag = VNIC_IOC_DIAG_MACMTU_INVALID; 513 goto bail; 514 } 515 vnic->vn_mtu = mac->m_max_sdu; 516 } else { 517 vnic->vn_margin = VLAN_TAGSZ; 518 mac->m_min_sdu = 1; 519 mac->m_max_sdu = ANCHOR_VNIC_MAX_MTU; 520 vnic->vn_mtu = ANCHOR_VNIC_MAX_MTU; 521 } 522 523 mac->m_margin = vnic->vn_margin; 524 525 err = mac_register(mac, &vnic->vn_mh); 526 mac_free(mac); 527 if (err != 0) { 528 if (!is_anchor) { 529 VERIFY(mac_mtu_remove(vnic->vn_lower_mh, 530 vnic->vn_mtu) == 0); 531 VERIFY(mac_margin_remove(vnic->vn_lower_mh, 532 vnic->vn_margin) == 0); 533 } 534 goto bail; 535 } 536 537 /* Set the VNIC's MAC in the client */ 538 if (!is_anchor) { 539 mac_set_upper_mac(vnic->vn_mch, vnic->vn_mh, mrp); 540 541 if (mrp != NULL) { 542 if ((mrp->mrp_mask & MRP_RX_RINGS) != 0 || 543 (mrp->mrp_mask & MRP_TX_RINGS) != 0) { 544 req_hwgrp_flag = B_TRUE; 545 } 546 err = mac_client_set_resources(vnic->vn_mch, mrp); 547 if (err != 0) { 548 VERIFY(mac_mtu_remove(vnic->vn_lower_mh, 549 vnic->vn_mtu) == 0); 550 VERIFY(mac_margin_remove(vnic->vn_lower_mh, 551 vnic->vn_margin) == 0); 552 (void) mac_unregister(vnic->vn_mh); 553 goto bail; 554 } 555 } 556 } 557 558 err = dls_devnet_create(vnic->vn_mh, vnic->vn_id, crgetzoneid(credp)); 559 if (err != 0) { 560 VERIFY(is_anchor || mac_margin_remove(vnic->vn_lower_mh, 561 vnic->vn_margin) == 0); 562 if (!is_anchor) { 563 VERIFY(mac_mtu_remove(vnic->vn_lower_mh, 564 vnic->vn_mtu) == 0); 565 VERIFY(mac_margin_remove(vnic->vn_lower_mh, 566 vnic->vn_margin) == 0); 567 } 568 (void) mac_unregister(vnic->vn_mh); 569 goto bail; 570 } 571 572 /* add new VNIC to hash table */ 573 err = mod_hash_insert(vnic_hash, VNIC_HASH_KEY(vnic_id), 574 (mod_hash_val_t)vnic); 575 ASSERT(err == 0); 576 vnic_count++; 577 578 /* 579 * Now that we've enabled this VNIC, we should go through and update the 580 * link state by setting it to our parents. 581 */ 582 vnic->vn_enabled = B_TRUE; 583 584 if (is_anchor) { 585 vnic->vn_ls = LINK_STATE_UP; 586 } else { 587 vnic->vn_ls = mac_client_stat_get(vnic->vn_mch, 588 MAC_STAT_LINK_STATE); 589 } 590 mac_link_update(vnic->vn_mh, vnic->vn_ls); 591 592 rw_exit(&vnic_lock); 593 594 return (0); 595 596 bail: 597 rw_exit(&vnic_lock); 598 if (!is_anchor) { 599 if (vnic->vn_mnh != NULL) 600 (void) mac_notify_remove(vnic->vn_mnh, B_TRUE); 601 if (vnic->vn_muh != NULL) 602 (void) mac_unicast_remove(vnic->vn_mch, vnic->vn_muh); 603 if (vnic->vn_mch != NULL) 604 mac_client_close(vnic->vn_mch, MAC_CLOSE_FLAGS_IS_VNIC); 605 if (vnic->vn_lower_mh != NULL) 606 mac_close(vnic->vn_lower_mh); 607 } 608 609 kmem_cache_free(vnic_cache, vnic); 610 return (err); 611 } 612 613 /* 614 * Modify the properties of an existing VNIC. 615 */ 616 /* ARGSUSED */ 617 int 618 vnic_dev_modify(datalink_id_t vnic_id, uint_t modify_mask, 619 vnic_mac_addr_type_t mac_addr_type, uint_t mac_len, uchar_t *mac_addr, 620 uint_t mac_slot, mac_resource_props_t *mrp) 621 { 622 vnic_t *vnic = NULL; 623 624 rw_enter(&vnic_lock, RW_WRITER); 625 626 if (mod_hash_find(vnic_hash, VNIC_HASH_KEY(vnic_id), 627 (mod_hash_val_t *)&vnic) != 0) { 628 rw_exit(&vnic_lock); 629 return (ENOENT); 630 } 631 632 rw_exit(&vnic_lock); 633 634 return (0); 635 } 636 637 /* ARGSUSED */ 638 int 639 vnic_dev_delete(datalink_id_t vnic_id, uint32_t flags, cred_t *credp) 640 { 641 vnic_t *vnic = NULL; 642 mod_hash_val_t val; 643 datalink_id_t tmpid; 644 int rc; 645 646 rw_enter(&vnic_lock, RW_WRITER); 647 648 if (mod_hash_find(vnic_hash, VNIC_HASH_KEY(vnic_id), 649 (mod_hash_val_t *)&vnic) != 0) { 650 rw_exit(&vnic_lock); 651 return (ENOENT); 652 } 653 654 if ((rc = dls_devnet_destroy(vnic->vn_mh, &tmpid, B_TRUE)) != 0) { 655 rw_exit(&vnic_lock); 656 return (rc); 657 } 658 659 ASSERT(vnic_id == tmpid); 660 661 /* 662 * We cannot unregister the MAC yet. Unregistering would 663 * free up mac_impl_t which should not happen at this time. 664 * So disable mac_impl_t by calling mac_disable(). This will prevent 665 * any new claims on mac_impl_t. 666 */ 667 if ((rc = mac_disable(vnic->vn_mh)) != 0) { 668 (void) dls_devnet_create(vnic->vn_mh, vnic_id, 669 crgetzoneid(credp)); 670 rw_exit(&vnic_lock); 671 return (rc); 672 } 673 674 vnic_cleanup_secondary_macs(vnic, vnic->vn_nhandles); 675 676 vnic->vn_enabled = B_FALSE; 677 (void) mod_hash_remove(vnic_hash, VNIC_HASH_KEY(vnic_id), &val); 678 ASSERT(vnic == (vnic_t *)val); 679 vnic_count--; 680 rw_exit(&vnic_lock); 681 682 /* 683 * XXX-nicolas shouldn't have a void cast here, if it's 684 * expected that the function will never fail, then we should 685 * have an ASSERT(). 686 */ 687 (void) mac_unregister(vnic->vn_mh); 688 689 if (vnic->vn_lower_mh != NULL) { 690 /* 691 * Check if MAC address for the vnic was obtained from the 692 * factory MAC addresses. If yes, release it. 693 */ 694 if (vnic->vn_addr_type == VNIC_MAC_ADDR_TYPE_FACTORY) { 695 (void) mac_addr_factory_release(vnic->vn_mch, 696 vnic->vn_slot_id); 697 } 698 (void) mac_margin_remove(vnic->vn_lower_mh, vnic->vn_margin); 699 (void) mac_mtu_remove(vnic->vn_lower_mh, vnic->vn_mtu); 700 (void) mac_notify_remove(vnic->vn_mnh, B_TRUE); 701 (void) mac_unicast_remove(vnic->vn_mch, vnic->vn_muh); 702 mac_client_close(vnic->vn_mch, MAC_CLOSE_FLAGS_IS_VNIC); 703 mac_close(vnic->vn_lower_mh); 704 } 705 706 kmem_cache_free(vnic_cache, vnic); 707 return (0); 708 } 709 710 /* ARGSUSED */ 711 mblk_t * 712 vnic_m_tx(void *arg, mblk_t *mp_chain) 713 { 714 /* 715 * This function could be invoked for an anchor VNIC when sending 716 * broadcast and multicast packets, and unicast packets which did 717 * not match any local known destination. 718 */ 719 freemsgchain(mp_chain); 720 return (NULL); 721 } 722 723 /*ARGSUSED*/ 724 static void 725 vnic_m_ioctl(void *arg, queue_t *q, mblk_t *mp) 726 { 727 miocnak(q, mp, 0, ENOTSUP); 728 } 729 730 /* 731 * This entry point cannot be passed-through, since it is invoked 732 * for the per-VNIC kstats which must be exported independently 733 * of the existence of VNIC MAC clients. 734 */ 735 static int 736 vnic_m_stat(void *arg, uint_t stat, uint64_t *val) 737 { 738 vnic_t *vnic = arg; 739 int rval = 0; 740 741 if (vnic->vn_lower_mh == NULL) { 742 /* 743 * It's an anchor VNIC, which does not have any 744 * statistics in itself. 745 */ 746 return (ENOTSUP); 747 } 748 749 /* 750 * ENOTSUP must be reported for unsupported stats, the VNIC 751 * driver reports a subset of the stats that would 752 * be returned by a real piece of hardware. 753 */ 754 755 switch (stat) { 756 case MAC_STAT_LINK_STATE: 757 case MAC_STAT_LINK_UP: 758 case MAC_STAT_PROMISC: 759 case MAC_STAT_IFSPEED: 760 case MAC_STAT_MULTIRCV: 761 case MAC_STAT_MULTIXMT: 762 case MAC_STAT_BRDCSTRCV: 763 case MAC_STAT_BRDCSTXMT: 764 case MAC_STAT_OPACKETS: 765 case MAC_STAT_OBYTES: 766 case MAC_STAT_IERRORS: 767 case MAC_STAT_OERRORS: 768 case MAC_STAT_RBYTES: 769 case MAC_STAT_IPACKETS: 770 *val = mac_client_stat_get(vnic->vn_mch, stat); 771 break; 772 default: 773 rval = ENOTSUP; 774 } 775 776 return (rval); 777 } 778 779 /* 780 * Invoked by the upper MAC to retrieve the lower MAC client handle 781 * corresponding to a VNIC. A pointer to this function is obtained 782 * by the upper MAC via capability query. 783 * 784 * XXX-nicolas Note: this currently causes all VNIC MAC clients to 785 * receive the same MAC client handle for the same VNIC. This is ok 786 * as long as we have only one VNIC MAC client which sends and 787 * receives data, but we don't currently enforce this at the MAC layer. 788 */ 789 static void * 790 vnic_mac_client_handle(void *vnic_arg) 791 { 792 vnic_t *vnic = vnic_arg; 793 794 return (vnic->vn_mch); 795 } 796 797 /* 798 * Invoked when updating the primary MAC so that the secondary MACs are 799 * kept in sync. 800 */ 801 static void 802 vnic_mac_secondary_update(void *vnic_arg) 803 { 804 vnic_t *vn = vnic_arg; 805 int i; 806 807 for (i = 1; i <= vn->vn_nhandles; i++) { 808 mac_secondary_dup(vn->vn_mc_handles[0], vn->vn_mc_handles[i]); 809 } 810 } 811 812 /* 813 * Return information about the specified capability. 814 */ 815 /* ARGSUSED */ 816 static boolean_t 817 vnic_m_capab_get(void *arg, mac_capab_t cap, void *cap_data) 818 { 819 vnic_t *vnic = arg; 820 821 switch (cap) { 822 case MAC_CAPAB_HCKSUM: { 823 uint32_t *hcksum_txflags = cap_data; 824 825 *hcksum_txflags = vnic->vn_hcksum_txflags & 826 (HCKSUM_INET_FULL_V4 | HCKSUM_IPHDRCKSUM | 827 HCKSUM_INET_PARTIAL); 828 break; 829 } 830 case MAC_CAPAB_VNIC: { 831 mac_capab_vnic_t *vnic_capab = cap_data; 832 833 if (vnic->vn_lower_mh == NULL) { 834 /* 835 * It's an anchor VNIC, we don't have an underlying 836 * NIC and MAC client handle. 837 */ 838 return (B_FALSE); 839 } 840 841 if (vnic_capab != NULL) { 842 vnic_capab->mcv_arg = vnic; 843 vnic_capab->mcv_mac_client_handle = 844 vnic_mac_client_handle; 845 vnic_capab->mcv_mac_secondary_update = 846 vnic_mac_secondary_update; 847 } 848 break; 849 } 850 case MAC_CAPAB_ANCHOR_VNIC: { 851 /* since it's an anchor VNIC we don't have lower mac handle */ 852 if (vnic->vn_lower_mh == NULL) { 853 ASSERT(vnic->vn_link_id == 0); 854 return (B_TRUE); 855 } 856 return (B_FALSE); 857 } 858 case MAC_CAPAB_NO_NATIVEVLAN: 859 return (B_FALSE); 860 case MAC_CAPAB_NO_ZCOPY: 861 return (B_TRUE); 862 case MAC_CAPAB_VRRP: { 863 mac_capab_vrrp_t *vrrp_capab = cap_data; 864 865 if (vnic->vn_vrid != 0) { 866 if (vrrp_capab != NULL) 867 vrrp_capab->mcv_af = vnic->vn_af; 868 return (B_TRUE); 869 } 870 return (B_FALSE); 871 } 872 default: 873 return (B_FALSE); 874 } 875 return (B_TRUE); 876 } 877 878 /* ARGSUSED */ 879 static int 880 vnic_m_start(void *arg) 881 { 882 return (0); 883 } 884 885 /* ARGSUSED */ 886 static void 887 vnic_m_stop(void *arg) 888 { 889 } 890 891 /* ARGSUSED */ 892 static int 893 vnic_m_promisc(void *arg, boolean_t on) 894 { 895 return (0); 896 } 897 898 /* ARGSUSED */ 899 static int 900 vnic_m_multicst(void *arg, boolean_t add, const uint8_t *addrp) 901 { 902 return (0); 903 } 904 905 static int 906 vnic_m_unicst(void *arg, const uint8_t *macaddr) 907 { 908 vnic_t *vnic = arg; 909 910 return (mac_vnic_unicast_set(vnic->vn_mch, macaddr)); 911 } 912 913 static void 914 vnic_cleanup_secondary_macs(vnic_t *vn, int cnt) 915 { 916 int i; 917 918 /* Remove existing secondaries (primary is at 0) */ 919 for (i = 1; i <= cnt; i++) { 920 mac_rx_clear(vn->vn_mc_handles[i]); 921 922 /* unicast handle might not have been set yet */ 923 if (vn->vn_mu_handles[i] != NULL) 924 (void) mac_unicast_remove(vn->vn_mc_handles[i], 925 vn->vn_mu_handles[i]); 926 927 mac_secondary_cleanup(vn->vn_mc_handles[i]); 928 929 mac_client_close(vn->vn_mc_handles[i], MAC_CLOSE_FLAGS_IS_VNIC); 930 931 vn->vn_mu_handles[i] = NULL; 932 vn->vn_mc_handles[i] = NULL; 933 } 934 935 vn->vn_nhandles = 0; 936 } 937 938 /* 939 * Setup secondary MAC addresses on the vnic. Due to limitations in the mac 940 * code, each mac address must be associated with a mac_client (and the 941 * flow that goes along with the client) so we need to create those clients 942 * here. 943 */ 944 static int 945 vnic_set_secondary_macs(vnic_t *vn, mac_secondary_addr_t *msa) 946 { 947 int i, err; 948 char primary_name[MAXNAMELEN]; 949 950 /* First, remove pre-existing secondaries */ 951 ASSERT(vn->vn_nhandles < MPT_MAXMACADDR); 952 vnic_cleanup_secondary_macs(vn, vn->vn_nhandles); 953 954 if (msa->ms_addrcnt == (uint32_t)-1) 955 msa->ms_addrcnt = 0; 956 957 vn->vn_nhandles = msa->ms_addrcnt; 958 959 (void) dls_mgmt_get_linkinfo(vn->vn_id, primary_name, NULL, NULL, NULL); 960 961 /* 962 * Now add the new secondary MACs 963 * Recall that the primary MAC address is the first element. 964 * The secondary clients are named after the primary with their 965 * index to distinguish them. 966 */ 967 for (i = 1; i <= vn->vn_nhandles; i++) { 968 uint8_t *addr; 969 mac_diag_t mac_diag; 970 char secondary_name[MAXNAMELEN]; 971 972 (void) snprintf(secondary_name, sizeof (secondary_name), 973 "%s%02d", primary_name, i); 974 975 err = mac_client_open(vn->vn_lower_mh, &vn->vn_mc_handles[i], 976 secondary_name, MAC_OPEN_FLAGS_IS_VNIC); 977 if (err != 0) { 978 /* Remove any that we successfully added */ 979 vnic_cleanup_secondary_macs(vn, --i); 980 return (err); 981 } 982 983 /* 984 * Assign a MAC address to the VNIC 985 * 986 * Normally this would be done with vnic_unicast_add but since 987 * we know these are fixed adddresses, and since we need to 988 * save this in the proper array slot, we bypass that function 989 * and go direct. 990 */ 991 addr = msa->ms_addrs[i - 1]; 992 err = mac_unicast_add(vn->vn_mc_handles[i], addr, 0, 993 &vn->vn_mu_handles[i], vn->vn_vid, &mac_diag); 994 if (err != 0) { 995 /* Remove any that we successfully added */ 996 vnic_cleanup_secondary_macs(vn, i); 997 return (err); 998 } 999 1000 /* 1001 * Setup the secondary the same way as the primary (i.e. 1002 * receiver function/argument (e.g. i_dls_link_rx, mac_pkt_drop, 1003 * etc.), the promisc list, and the resource controls). 1004 */ 1005 mac_secondary_dup(vn->vn_mc_handles[0], vn->vn_mc_handles[i]); 1006 } 1007 1008 return (0); 1009 } 1010 1011 static int 1012 vnic_get_secondary_macs(vnic_t *vn, uint_t pr_valsize, void *pr_val) 1013 { 1014 int i; 1015 mac_secondary_addr_t msa; 1016 1017 if (pr_valsize < sizeof (msa)) 1018 return (EINVAL); 1019 1020 /* Get existing addresses (primary is at 0) */ 1021 ASSERT(vn->vn_nhandles < MPT_MAXMACADDR); 1022 for (i = 1; i <= vn->vn_nhandles; i++) { 1023 ASSERT(vn->vn_mc_handles[i] != NULL); 1024 mac_unicast_secondary_get(vn->vn_mc_handles[i], 1025 msa.ms_addrs[i - 1]); 1026 } 1027 msa.ms_addrcnt = vn->vn_nhandles; 1028 1029 bcopy(&msa, pr_val, sizeof (msa)); 1030 return (0); 1031 } 1032 1033 /* 1034 * Callback functions for set/get of properties 1035 */ 1036 /*ARGSUSED*/ 1037 static int 1038 vnic_m_setprop(void *m_driver, const char *pr_name, mac_prop_id_t pr_num, 1039 uint_t pr_valsize, const void *pr_val) 1040 { 1041 int err = 0; 1042 vnic_t *vn = m_driver; 1043 1044 switch (pr_num) { 1045 case MAC_PROP_MTU: { 1046 uint32_t mtu; 1047 1048 if (pr_valsize < sizeof (mtu)) { 1049 err = EINVAL; 1050 break; 1051 } 1052 bcopy(pr_val, &mtu, sizeof (mtu)); 1053 1054 if (vn->vn_link_id == DATALINK_INVALID_LINKID) { 1055 if (mtu < ANCHOR_VNIC_MIN_MTU || 1056 mtu > ANCHOR_VNIC_MAX_MTU) { 1057 err = EINVAL; 1058 break; 1059 } 1060 } else { 1061 err = mac_mtu_add(vn->vn_lower_mh, &mtu, B_FALSE); 1062 /* 1063 * If it's not supported to set a value here, translate 1064 * that to EINVAL, so user land gets a better idea of 1065 * what went wrong. This realistically means that they 1066 * violated the output of prop info. 1067 */ 1068 if (err == ENOTSUP) 1069 err = EINVAL; 1070 if (err != 0) 1071 break; 1072 VERIFY(mac_mtu_remove(vn->vn_lower_mh, 1073 vn->vn_mtu) == 0); 1074 } 1075 vn->vn_mtu = mtu; 1076 err = mac_maxsdu_update(vn->vn_mh, mtu); 1077 break; 1078 } 1079 case MAC_PROP_VN_PROMISC_FILTERED: { 1080 boolean_t filtered; 1081 1082 if (pr_valsize < sizeof (filtered)) { 1083 err = EINVAL; 1084 break; 1085 } 1086 1087 bcopy(pr_val, &filtered, sizeof (filtered)); 1088 mac_set_promisc_filtered(vn->vn_mch, filtered); 1089 break; 1090 } 1091 case MAC_PROP_SECONDARY_ADDRS: { 1092 mac_secondary_addr_t msa; 1093 1094 bcopy(pr_val, &msa, sizeof (msa)); 1095 err = vnic_set_secondary_macs(vn, &msa); 1096 break; 1097 } 1098 case MAC_PROP_PRIVATE: { 1099 long val, i; 1100 const char *v; 1101 1102 if (vn->vn_link_id != DATALINK_INVALID_LINKID || 1103 strcmp(pr_name, "_linkstate") != 0) { 1104 err = ENOTSUP; 1105 break; 1106 } 1107 1108 for (v = pr_val, i = 0; i < pr_valsize; i++, v++) { 1109 if (*v == '\0') 1110 break; 1111 } 1112 if (i == pr_valsize) { 1113 err = EINVAL; 1114 break; 1115 } 1116 1117 (void) ddi_strtol(pr_val, (char **)NULL, 0, &val); 1118 if (val != LINK_STATE_UP && val != LINK_STATE_DOWN) { 1119 err = EINVAL; 1120 break; 1121 } 1122 vn->vn_ls = val; 1123 mac_link_update(vn->vn_mh, vn->vn_ls); 1124 break; 1125 } 1126 default: 1127 err = ENOTSUP; 1128 break; 1129 } 1130 return (err); 1131 } 1132 1133 /* ARGSUSED */ 1134 static int 1135 vnic_m_getprop(void *arg, const char *pr_name, mac_prop_id_t pr_num, 1136 uint_t pr_valsize, void *pr_val) 1137 { 1138 vnic_t *vn = arg; 1139 int ret = 0; 1140 boolean_t out; 1141 1142 switch (pr_num) { 1143 case MAC_PROP_VN_PROMISC_FILTERED: 1144 out = mac_get_promisc_filtered(vn->vn_mch); 1145 ASSERT(pr_valsize >= sizeof (boolean_t)); 1146 bcopy(&out, pr_val, sizeof (boolean_t)); 1147 break; 1148 case MAC_PROP_SECONDARY_ADDRS: 1149 ret = vnic_get_secondary_macs(vn, pr_valsize, pr_val); 1150 break; 1151 case MAC_PROP_PRIVATE: 1152 if (vn->vn_link_id != DATALINK_INVALID_LINKID) { 1153 ret = EINVAL; 1154 break; 1155 } 1156 1157 if (strcmp(pr_name, "_linkstate") != 0) { 1158 ret = EINVAL; 1159 break; 1160 } 1161 (void) snprintf(pr_val, pr_valsize, "%d", vn->vn_ls); 1162 break; 1163 default: 1164 ret = ENOTSUP; 1165 break; 1166 } 1167 1168 return (ret); 1169 } 1170 1171 /* ARGSUSED */ 1172 static void 1173 vnic_m_propinfo(void *m_driver, const char *pr_name, 1174 mac_prop_id_t pr_num, mac_prop_info_handle_t prh) 1175 { 1176 vnic_t *vn = m_driver; 1177 1178 switch (pr_num) { 1179 case MAC_PROP_MTU: 1180 if (vn->vn_link_id == DATALINK_INVALID_LINKID) { 1181 mac_prop_info_set_range_uint32(prh, 1182 ANCHOR_VNIC_MIN_MTU, ANCHOR_VNIC_MAX_MTU); 1183 } else { 1184 uint32_t max; 1185 mac_perim_handle_t mph; 1186 mac_propval_range_t range; 1187 1188 /* 1189 * The valid range for a VNIC's MTU is the minimum that 1190 * the device supports and the current value of the 1191 * device. A VNIC cannot increase the current MTU of the 1192 * device. Therefore we need to get the range from the 1193 * propinfo endpoint and current mtu from the 1194 * traditional property endpoint. 1195 */ 1196 mac_perim_enter_by_mh(vn->vn_lower_mh, &mph); 1197 if (mac_get_prop(vn->vn_lower_mh, MAC_PROP_MTU, "mtu", 1198 &max, sizeof (uint32_t)) != 0) { 1199 mac_perim_exit(mph); 1200 return; 1201 } 1202 1203 range.mpr_count = 1; 1204 if (mac_prop_info(vn->vn_lower_mh, MAC_PROP_MTU, "mtu", 1205 NULL, 0, &range, NULL) != 0) { 1206 mac_perim_exit(mph); 1207 return; 1208 } 1209 1210 mac_prop_info_set_default_uint32(prh, max); 1211 mac_prop_info_set_range_uint32(prh, 1212 range.mpr_range_uint32[0].mpur_min, max); 1213 mac_perim_exit(mph); 1214 } 1215 break; 1216 case MAC_PROP_PRIVATE: 1217 if (vn->vn_link_id != DATALINK_INVALID_LINKID) 1218 break; 1219 1220 if (strcmp(pr_name, "_linkstate") == 0) { 1221 char buf[16]; 1222 1223 mac_prop_info_set_perm(prh, MAC_PROP_PERM_RW); 1224 (void) snprintf(buf, sizeof (buf), "%d", vn->vn_ls); 1225 mac_prop_info_set_default_str(prh, buf); 1226 } 1227 break; 1228 } 1229 } 1230 1231 1232 int 1233 vnic_info(vnic_info_t *info, cred_t *credp) 1234 { 1235 vnic_t *vnic; 1236 int err; 1237 1238 /* Make sure that the VNIC link is visible from the caller's zone. */ 1239 if (!dls_devnet_islinkvisible(info->vn_vnic_id, crgetzoneid(credp))) 1240 return (ENOENT); 1241 1242 rw_enter(&vnic_lock, RW_WRITER); 1243 1244 err = mod_hash_find(vnic_hash, VNIC_HASH_KEY(info->vn_vnic_id), 1245 (mod_hash_val_t *)&vnic); 1246 if (err != 0) { 1247 rw_exit(&vnic_lock); 1248 return (ENOENT); 1249 } 1250 1251 info->vn_link_id = vnic->vn_link_id; 1252 info->vn_mac_addr_type = vnic->vn_addr_type; 1253 info->vn_mac_len = vnic->vn_addr_len; 1254 bcopy(vnic->vn_addr, info->vn_mac_addr, MAXMACADDRLEN); 1255 info->vn_mac_slot = vnic->vn_slot_id; 1256 info->vn_mac_prefix_len = 0; 1257 info->vn_vid = vnic->vn_vid; 1258 info->vn_force = vnic->vn_force; 1259 info->vn_vrid = vnic->vn_vrid; 1260 info->vn_af = vnic->vn_af; 1261 1262 bzero(&info->vn_resource_props, sizeof (mac_resource_props_t)); 1263 if (vnic->vn_mch != NULL) 1264 mac_client_get_resources(vnic->vn_mch, 1265 &info->vn_resource_props); 1266 1267 rw_exit(&vnic_lock); 1268 return (0); 1269 } 1270 1271 static void 1272 vnic_notify_cb(void *arg, mac_notify_type_t type) 1273 { 1274 vnic_t *vnic = arg; 1275 1276 /* 1277 * Do not deliver notifications if the vnic is not fully initialized 1278 * or is in process of being torn down. 1279 */ 1280 if (!vnic->vn_enabled) 1281 return; 1282 1283 switch (type) { 1284 case MAC_NOTE_UNICST: 1285 /* 1286 * Only the VLAN VNIC needs to be notified with primary MAC 1287 * address change. 1288 */ 1289 if (vnic->vn_addr_type != VNIC_MAC_ADDR_TYPE_PRIMARY) 1290 return; 1291 1292 /* the unicast MAC address value */ 1293 mac_unicast_primary_get(vnic->vn_lower_mh, vnic->vn_addr); 1294 1295 /* notify its upper layer MAC about MAC address change */ 1296 mac_unicst_update(vnic->vn_mh, (const uint8_t *)vnic->vn_addr); 1297 break; 1298 1299 case MAC_NOTE_LINK: 1300 vnic->vn_ls = mac_client_stat_get(vnic->vn_mch, 1301 MAC_STAT_LINK_STATE); 1302 mac_link_update(vnic->vn_mh, vnic->vn_ls); 1303 break; 1304 1305 default: 1306 break; 1307 } 1308 } 1309