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 2008 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 /* 29 * Ethernet MAC plugin for the Nemo mac module 30 */ 31 32 #include <sys/types.h> 33 #include <sys/modctl.h> 34 #include <sys/dlpi.h> 35 #include <sys/mac.h> 36 #include <sys/mac_ether.h> 37 #include <sys/dls.h> 38 #include <sys/ethernet.h> 39 #include <sys/byteorder.h> 40 #include <sys/strsun.h> 41 #include <inet/common.h> 42 43 static uint8_t ether_brdcst[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 44 45 static mac_stat_info_t ether_stats[] = { 46 /* RFC1643 stats */ 47 { ETHER_STAT_ALIGN_ERRORS, "align_errors", KSTAT_DATA_UINT32, 0 }, 48 { ETHER_STAT_FCS_ERRORS, "fcs_errors", KSTAT_DATA_UINT32, 0 }, 49 { ETHER_STAT_FIRST_COLLISIONS, "first_collisions", KSTAT_DATA_UINT32, 50 0 }, 51 { ETHER_STAT_MULTI_COLLISIONS, "multi_collisions", KSTAT_DATA_UINT32, 52 0 }, 53 { ETHER_STAT_SQE_ERRORS, "sqe_errors", KSTAT_DATA_UINT32, 0}, 54 { ETHER_STAT_DEFER_XMTS, "defer_xmts", KSTAT_DATA_UINT32, 0}, 55 { ETHER_STAT_TX_LATE_COLLISIONS, "tx_late_collisions", 56 KSTAT_DATA_UINT32, 0 }, 57 { ETHER_STAT_EX_COLLISIONS, "ex_collisions", KSTAT_DATA_UINT32, 0 }, 58 { ETHER_STAT_MACXMT_ERRORS, "macxmt_errors", KSTAT_DATA_UINT32, 0 }, 59 { ETHER_STAT_CARRIER_ERRORS, "carrier_errors", KSTAT_DATA_UINT32, 0 }, 60 { ETHER_STAT_TOOLONG_ERRORS, "toolong_errors", KSTAT_DATA_UINT32, 0 }, 61 { ETHER_STAT_MACRCV_ERRORS, "macrcv_errors", KSTAT_DATA_UINT32, 0 }, 62 { ETHER_STAT_TOOSHORT_ERRORS, "runt_errors", KSTAT_DATA_UINT32, 0 }, 63 { ETHER_STAT_JABBER_ERRORS, "jabber_errors", KSTAT_DATA_UINT32, 0 }, 64 65 /* Statistics described in the ieee802.3(5) man page */ 66 { ETHER_STAT_XCVR_ADDR, "xcvr_addr", KSTAT_DATA_UINT32, 0 }, 67 { ETHER_STAT_XCVR_ID, "xcvr_id", KSTAT_DATA_UINT32, 0 }, 68 { ETHER_STAT_XCVR_INUSE, "xcvr_inuse", KSTAT_DATA_UINT32, 0 }, 69 { ETHER_STAT_CAP_1000FDX, "cap_1000fdx", KSTAT_DATA_UINT32, 0 }, 70 { ETHER_STAT_CAP_1000HDX, "cap_1000hdx", KSTAT_DATA_UINT32, 0 }, 71 { ETHER_STAT_CAP_100T4, "cap_100T4", KSTAT_DATA_UINT32, 0 }, 72 { ETHER_STAT_CAP_100FDX, "cap_100fdx", KSTAT_DATA_UINT32, 0 }, 73 { ETHER_STAT_CAP_100HDX, "cap_100hdx", KSTAT_DATA_UINT32, 0 }, 74 { ETHER_STAT_CAP_10FDX, "cap_10fdx", KSTAT_DATA_UINT32, 0 }, 75 { ETHER_STAT_CAP_10HDX, "cap_10hdx", KSTAT_DATA_UINT32, 0 }, 76 { ETHER_STAT_CAP_ASMPAUSE, "cap_asmpause", KSTAT_DATA_UINT32, 0 }, 77 { ETHER_STAT_CAP_PAUSE, "cap_pause", KSTAT_DATA_UINT32, 0 }, 78 { ETHER_STAT_CAP_AUTONEG, "cap_autoneg", KSTAT_DATA_UINT32, 0 }, 79 { ETHER_STAT_CAP_REMFAULT, "cap_rem_fault", KSTAT_DATA_UINT32, 0 }, 80 { ETHER_STAT_ADV_CAP_1000FDX, "adv_cap_1000fdx", KSTAT_DATA_UINT32, 0 }, 81 { ETHER_STAT_ADV_CAP_1000HDX, "adv_cap_1000hdx", KSTAT_DATA_UINT32, 0 }, 82 { ETHER_STAT_ADV_CAP_100T4, "adv_cap_100T4", KSTAT_DATA_UINT32, 0 }, 83 { ETHER_STAT_ADV_CAP_100FDX, "adv_cap_100fdx", KSTAT_DATA_UINT32, 0}, 84 { ETHER_STAT_ADV_CAP_100HDX, "adv_cap_100hdx", KSTAT_DATA_UINT32, 0}, 85 { ETHER_STAT_ADV_CAP_10FDX, "adv_cap_10fdx", KSTAT_DATA_UINT32, 0 }, 86 { ETHER_STAT_ADV_CAP_10HDX, "adv_cap_10hdx", KSTAT_DATA_UINT32, 0 }, 87 { ETHER_STAT_ADV_CAP_ASMPAUSE, "adv_cap_asmpause", KSTAT_DATA_UINT32, 88 0 }, 89 { ETHER_STAT_ADV_CAP_PAUSE, "adv_cap_pause", KSTAT_DATA_UINT32, 0 }, 90 { ETHER_STAT_ADV_CAP_AUTONEG, "adv_cap_autoneg", KSTAT_DATA_UINT32, 0 }, 91 { ETHER_STAT_ADV_REMFAULT, "adv_rem_fault", KSTAT_DATA_UINT32, 0 }, 92 { ETHER_STAT_LP_CAP_1000FDX, "lp_cap_1000fdx", KSTAT_DATA_UINT32, 0 }, 93 { ETHER_STAT_LP_CAP_1000HDX, "lp_cap_1000hdx", KSTAT_DATA_UINT32, 0 }, 94 { ETHER_STAT_LP_CAP_100T4, "lp_cap_100T4", KSTAT_DATA_UINT32, 0 }, 95 { ETHER_STAT_LP_CAP_100FDX, "lp_cap_100fdx", KSTAT_DATA_UINT32, 0 }, 96 { ETHER_STAT_LP_CAP_100HDX, "lp_cap_100hdx", KSTAT_DATA_UINT32, 0 }, 97 { ETHER_STAT_LP_CAP_10FDX, "lp_cap_10fdx", KSTAT_DATA_UINT32, 0 }, 98 { ETHER_STAT_LP_CAP_10HDX, "lp_cap_10hdx", KSTAT_DATA_UINT32, 0 }, 99 { ETHER_STAT_LP_CAP_ASMPAUSE, "lp_cap_asmpause", KSTAT_DATA_UINT32, 0 }, 100 { ETHER_STAT_LP_CAP_PAUSE, "lp_cap_pause", KSTAT_DATA_UINT32, 0 }, 101 { ETHER_STAT_LP_CAP_AUTONEG, "lp_cap_autoneg", KSTAT_DATA_UINT32, 0 }, 102 { ETHER_STAT_LP_REMFAULT, "lp_rem_fault", KSTAT_DATA_UINT32, 0 }, 103 { ETHER_STAT_LINK_ASMPAUSE, "link_asmpause", KSTAT_DATA_UINT32, 0 }, 104 { ETHER_STAT_LINK_PAUSE, "link_pause", KSTAT_DATA_UINT32, 0 }, 105 { ETHER_STAT_LINK_AUTONEG, "link_autoneg", KSTAT_DATA_UINT32, 0 }, 106 { ETHER_STAT_LINK_DUPLEX, "link_duplex", KSTAT_DATA_UINT32, 0 } 107 }; 108 109 static struct modlmisc mac_ether_modlmisc = { 110 &mod_miscops, 111 "Ethernet MAC plugin %I%" 112 }; 113 114 static struct modlinkage mac_ether_modlinkage = { 115 MODREV_1, 116 &mac_ether_modlmisc, 117 NULL 118 }; 119 120 static mactype_ops_t mac_ether_type_ops; 121 122 static mac_ndd_mapping_t mac_ether_mapping[] = { 123 {"adv_autoneg_cap", MAC_PROP_AUTONEG, 0, 1, sizeof (uint8_t), 124 MAC_PROP_PERM_RW}, 125 126 {"adv_1000fdx_cap", MAC_PROP_EN_1000FDX_CAP, 0, 1, 127 sizeof (uint8_t), MAC_PROP_PERM_RW}, 128 129 {"adv_1000hdx_cap", MAC_PROP_EN_1000HDX_CAP, 0, 1, 130 sizeof (uint8_t), MAC_PROP_PERM_RW}, 131 132 {"adv_100fdx_cap", MAC_PROP_EN_100FDX_CAP, 0, 1, 133 sizeof (uint8_t), MAC_PROP_PERM_RW}, 134 135 {"adv_100hdx_cap", MAC_PROP_EN_100HDX_CAP, 0, 1, 136 sizeof (uint8_t), MAC_PROP_PERM_RW}, 137 138 {"adv_10fdx_cap", MAC_PROP_EN_10FDX_CAP, 0, 1, 139 sizeof (uint8_t), MAC_PROP_PERM_RW}, 140 141 {"adv_10hdx_cap", MAC_PROP_EN_10HDX_CAP, 0, 1, 142 sizeof (uint8_t), MAC_PROP_PERM_RW}, 143 144 {"adv_100T4_cap", MAC_PROP_EN_100T4_CAP, 0, 1, 145 sizeof (uint8_t), MAC_PROP_PERM_READ}, 146 147 {"link_status", MAC_STAT_LINK_UP, 0, 1, 148 sizeof (long), MAC_PROP_FLAGS_RK}, 149 150 {"link_speed", MAC_PROP_SPEED, 0, LONG_MAX, 151 sizeof (uint64_t), MAC_PROP_PERM_READ}, 152 153 {"link_duplex", MAC_PROP_DUPLEX, 0, 2, 154 sizeof (link_duplex_t), MAC_PROP_PERM_READ}, 155 156 {"autoneg_cap", ETHER_STAT_CAP_AUTONEG, 0, 1, 157 sizeof (long), MAC_PROP_FLAGS_RK}, 158 159 {"pause_cap", ETHER_STAT_CAP_PAUSE, 0, 1, 160 sizeof (long), MAC_PROP_FLAGS_RK}, 161 162 {"asym_pause_cap", ETHER_STAT_CAP_ASMPAUSE, 0, 1, 163 sizeof (long), MAC_PROP_FLAGS_RK}, 164 165 {"1000fdx_cap", ETHER_STAT_CAP_1000FDX, 0, 1, 166 sizeof (long), MAC_PROP_FLAGS_RK}, 167 168 {"1000hdx_cap", ETHER_STAT_CAP_1000HDX, 0, 1, 169 sizeof (long), MAC_PROP_FLAGS_RK}, 170 171 {"100T4_cap", ETHER_STAT_CAP_100T4, 0, 1, 172 sizeof (long), MAC_PROP_FLAGS_RK}, 173 174 {"100fdx_cap", ETHER_STAT_CAP_100FDX, 0, 1, 175 sizeof (long), MAC_PROP_FLAGS_RK}, 176 177 {"100hdx_cap", ETHER_STAT_CAP_100HDX, 0, 1, 178 sizeof (long), MAC_PROP_FLAGS_RK}, 179 180 {"10fdx_cap", ETHER_STAT_CAP_10FDX, 0, 1, 181 sizeof (long), MAC_PROP_FLAGS_RK}, 182 183 {"10hdx_cap", ETHER_STAT_CAP_10HDX, 0, 1, 184 sizeof (long), MAC_PROP_FLAGS_RK}, 185 186 {"lp_autoneg_cap", ETHER_STAT_LP_CAP_AUTONEG, 0, 1, 187 sizeof (long), MAC_PROP_FLAGS_RK}, 188 189 {"lp_pause_cap", ETHER_STAT_LP_CAP_PAUSE, 0, 1, 190 sizeof (long), MAC_PROP_FLAGS_RK}, 191 192 {"lp_asym_pause_cap", ETHER_STAT_LP_CAP_ASMPAUSE, 0, 1, 193 sizeof (long), MAC_PROP_FLAGS_RK}, 194 195 {"lp_1000hdx_cap", ETHER_STAT_LP_CAP_1000HDX, 0, 1, 196 sizeof (long), MAC_PROP_FLAGS_RK}, 197 198 {"lp_1000fdx_cap", ETHER_STAT_LP_CAP_1000FDX, 0, 1, 199 sizeof (long), MAC_PROP_FLAGS_RK}, 200 201 {"lp_100T4_cap", ETHER_STAT_LP_CAP_100T4, 0, 1, 202 sizeof (long), MAC_PROP_FLAGS_RK}, 203 204 {"lp_100fdx_cap", ETHER_STAT_LP_CAP_100FDX, 0, 1, 205 sizeof (long), MAC_PROP_FLAGS_RK}, 206 207 {"lp_100hdx_cap", ETHER_STAT_LP_CAP_100HDX, 0, 1, 208 sizeof (long), MAC_PROP_FLAGS_RK}, 209 210 {"lp_10fdx_cap", ETHER_STAT_LP_CAP_10FDX, 0, 1, 211 sizeof (long), MAC_PROP_FLAGS_RK}, 212 213 {"lp_10hdx_cap", ETHER_STAT_LP_CAP_10HDX, 0, 1, 214 sizeof (long), MAC_PROP_FLAGS_RK}, 215 216 {"link_autoneg", ETHER_STAT_LINK_AUTONEG, 0, 1, 217 sizeof (long), MAC_PROP_FLAGS_RK} 218 219 }; 220 221 222 int 223 _init(void) 224 { 225 mactype_register_t *mtrp; 226 int err; 227 228 if ((mtrp = mactype_alloc(MACTYPE_VERSION)) == NULL) 229 return (ENOTSUP); 230 mtrp->mtr_ident = MAC_PLUGIN_IDENT_ETHER; 231 mtrp->mtr_ops = &mac_ether_type_ops; 232 mtrp->mtr_mactype = DL_ETHER; 233 mtrp->mtr_nativetype = DL_ETHER; 234 mtrp->mtr_addrlen = ETHERADDRL; 235 mtrp->mtr_brdcst_addr = ether_brdcst; 236 mtrp->mtr_stats = ether_stats; 237 mtrp->mtr_statcount = A_CNT(ether_stats); 238 mtrp->mtr_mapping = mac_ether_mapping; 239 mtrp->mtr_mappingcount = A_CNT(mac_ether_mapping); 240 if ((err = mactype_register(mtrp)) == 0) { 241 if ((err = mod_install(&mac_ether_modlinkage)) != 0) 242 (void) mactype_unregister(MAC_PLUGIN_IDENT_ETHER); 243 } 244 mactype_free(mtrp); 245 return (err); 246 } 247 248 int 249 _fini(void) 250 { 251 int err; 252 253 if ((err = mactype_unregister(MAC_PLUGIN_IDENT_ETHER)) != 0) 254 return (err); 255 return (mod_remove(&mac_ether_modlinkage)); 256 } 257 258 int 259 _info(struct modinfo *modinfop) 260 { 261 return (mod_info(&mac_ether_modlinkage, modinfop)); 262 } 263 264 /* 265 * MAC Type plugin operations 266 */ 267 268 /* ARGSUSED */ 269 int 270 mac_ether_unicst_verify(const void *addr, void *mac_pdata) 271 { 272 /* If it's not a group address, then it's a valid unicast address. */ 273 return (((((uint8_t *)addr)[0] & 0x01) != 0) ? EINVAL : 0); 274 } 275 276 /* ARGSUSED */ 277 int 278 mac_ether_multicst_verify(const void *addr, void *mac_pdata) 279 { 280 /* The address must be a group address. */ 281 if ((((uint8_t *)addr)[0] & 0x01) == 0) 282 return (EINVAL); 283 /* The address must not be the media broadcast address. */ 284 if (bcmp(addr, ether_brdcst, ETHERADDRL) == 0) 285 return (EINVAL); 286 return (0); 287 } 288 289 /* 290 * Check the legality of an Ethernet SAP value. The following values are 291 * allowed, as specified by PSARC 2003/150: 292 * 293 * 0..ETHERMTU (1500) 802 semantics 294 * ETHERTYPE_802_MIN (1536)..ETHERTYPE_MAX (65535) ethertype semantics 295 * 296 * Note that SAP values less than or equal to ETHERMTU (1500) represent LLC 297 * channels. (See PSARC 2003/150). We strictly use SAP 0 to represent LLC 298 * channels. 299 */ 300 /* ARGSUSED */ 301 boolean_t 302 mac_ether_sap_verify(uint32_t sap, uint32_t *bind_sap, void *mac_pdata) 303 { 304 if (sap >= ETHERTYPE_802_MIN && sap <= ETHERTYPE_MAX) { 305 if (bind_sap != NULL) 306 *bind_sap = sap; 307 return (B_TRUE); 308 } 309 310 if (sap <= ETHERMTU) { 311 if (bind_sap != NULL) 312 *bind_sap = DLS_SAP_LLC; 313 return (B_TRUE); 314 } 315 return (B_FALSE); 316 } 317 318 /* ARGSUSED */ 319 mblk_t * 320 mac_ether_header(const void *saddr, const void *daddr, uint32_t sap, 321 void *mac_pdata, mblk_t *payload, size_t extra_len) 322 { 323 struct ether_header *ehp; 324 mblk_t *mp; 325 uint32_t bind_sap; 326 327 if (!mac_ether_sap_verify(sap, &bind_sap, NULL)) 328 return (NULL); 329 330 mp = allocb(sizeof (struct ether_header) + extra_len, BPRI_HI); 331 if (mp == NULL) 332 return (NULL); 333 334 ehp = (void *)mp->b_rptr; 335 bcopy(daddr, &(ehp->ether_dhost), ETHERADDRL); 336 bcopy(saddr, &(ehp->ether_shost), ETHERADDRL); 337 338 /* 339 * sap <= ETHERMTU indicates that LLC is being used. If that's the 340 * case, then the ether_type needs to be set to the payload length. 341 */ 342 if ((bind_sap == DLS_SAP_LLC) && (payload != NULL)) 343 sap = msgdsize(payload); 344 ehp->ether_type = htons(sap); 345 346 mp->b_wptr += sizeof (struct ether_header); 347 return (mp); 348 } 349 350 /* ARGSUSED */ 351 int 352 mac_ether_header_info(mblk_t *mp, void *mac_pdata, mac_header_info_t *hdr_info) 353 { 354 struct ether_header *ehp; 355 uint16_t ether_type; 356 357 if (MBLKL(mp) < sizeof (struct ether_header)) 358 return (EINVAL); 359 360 ehp = (void *)mp->b_rptr; 361 ether_type = ntohs(ehp->ether_type); 362 363 hdr_info->mhi_hdrsize = sizeof (struct ether_header); 364 hdr_info->mhi_daddr = (const uint8_t *)&(ehp->ether_dhost); 365 hdr_info->mhi_saddr = (const uint8_t *)&(ehp->ether_shost); 366 hdr_info->mhi_origsap = ether_type; 367 hdr_info->mhi_bindsap = (ether_type > ETHERMTU) ? 368 ether_type : DLS_SAP_LLC; 369 hdr_info->mhi_pktsize = (hdr_info->mhi_bindsap == DLS_SAP_LLC) ? 370 hdr_info->mhi_hdrsize + ether_type : 0; 371 372 if (mac_ether_unicst_verify(hdr_info->mhi_daddr, NULL) == 0) 373 hdr_info->mhi_dsttype = MAC_ADDRTYPE_UNICAST; 374 else if (mac_ether_multicst_verify(hdr_info->mhi_daddr, NULL) == 0) 375 hdr_info->mhi_dsttype = MAC_ADDRTYPE_MULTICAST; 376 else 377 hdr_info->mhi_dsttype = MAC_ADDRTYPE_BROADCAST; 378 379 return (0); 380 } 381 382 /*ARGSUSED3*/ 383 void 384 mac_ether_link_details(char *buf, size_t sz, mac_handle_t mh, void *mac_pdata) 385 { 386 link_duplex_t duplex; 387 uint64_t speed; 388 389 duplex = mac_stat_get(mh, ETHER_STAT_LINK_DUPLEX); 390 speed = mac_stat_get(mh, MAC_STAT_IFSPEED); 391 392 /* convert to Mbps */ 393 speed /= 1000000; 394 395 buf[0] = 0; 396 (void) snprintf(buf, sz, "%u Mbps, %s duplex", (uint32_t)speed, 397 duplex == LINK_DUPLEX_FULL ? "full" : 398 duplex == LINK_DUPLEX_HALF ? "half" : "unknown"); 399 } 400 401 static mactype_ops_t mac_ether_type_ops = { 402 MTOPS_LINK_DETAILS, 403 mac_ether_unicst_verify, 404 mac_ether_multicst_verify, 405 mac_ether_sap_verify, 406 mac_ether_header, 407 mac_ether_header_info, 408 NULL, /* pdata_verify */ 409 NULL, /* header_cook */ 410 NULL, /* header_uncook */ 411 mac_ether_link_details 412 }; 413