1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright IBM Corp. 2007, 2009 4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, 5 * Frank Pavlic <fpavlic@de.ibm.com>, 6 * Thomas Spatzier <tspat@de.ibm.com>, 7 * Frank Blaschka <frank.blaschka@de.ibm.com> 8 */ 9 10 #define KMSG_COMPONENT "qeth" 11 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 12 13 #include <linux/module.h> 14 #include <linux/moduleparam.h> 15 #include <linux/string.h> 16 #include <linux/errno.h> 17 #include <linux/kernel.h> 18 #include <linux/slab.h> 19 #include <linux/etherdevice.h> 20 #include <linux/list.h> 21 #include <linux/hash.h> 22 #include <linux/hashtable.h> 23 #include <asm/setup.h> 24 #include "qeth_core.h" 25 #include "qeth_l2.h" 26 27 static int qeth_l2_set_offline(struct ccwgroup_device *); 28 static int qeth_l2_stop(struct net_device *); 29 static void qeth_bridgeport_query_support(struct qeth_card *card); 30 static void qeth_bridge_state_change(struct qeth_card *card, 31 struct qeth_ipa_cmd *cmd); 32 static void qeth_bridge_host_event(struct qeth_card *card, 33 struct qeth_ipa_cmd *cmd); 34 static void qeth_l2_vnicc_set_defaults(struct qeth_card *card); 35 static void qeth_l2_vnicc_init(struct qeth_card *card); 36 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, 37 u32 *timeout); 38 39 static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode) 40 { 41 int rc; 42 43 if (retcode) 44 QETH_CARD_TEXT_(card, 2, "err%04x", retcode); 45 switch (retcode) { 46 case IPA_RC_SUCCESS: 47 rc = 0; 48 break; 49 case IPA_RC_L2_UNSUPPORTED_CMD: 50 rc = -EOPNOTSUPP; 51 break; 52 case IPA_RC_L2_ADDR_TABLE_FULL: 53 rc = -ENOSPC; 54 break; 55 case IPA_RC_L2_DUP_MAC: 56 case IPA_RC_L2_DUP_LAYER3_MAC: 57 rc = -EEXIST; 58 break; 59 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: 60 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: 61 rc = -EPERM; 62 break; 63 case IPA_RC_L2_MAC_NOT_FOUND: 64 rc = -ENOENT; 65 break; 66 case -ENOMEM: 67 rc = -ENOMEM; 68 break; 69 default: 70 rc = -EIO; 71 break; 72 } 73 return rc; 74 } 75 76 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, 77 enum qeth_ipa_cmds ipacmd) 78 { 79 struct qeth_ipa_cmd *cmd; 80 struct qeth_cmd_buffer *iob; 81 82 QETH_CARD_TEXT(card, 2, "L2sdmac"); 83 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 84 if (!iob) 85 return -ENOMEM; 86 cmd = __ipa_cmd(iob); 87 cmd->data.setdelmac.mac_length = ETH_ALEN; 88 ether_addr_copy(cmd->data.setdelmac.mac, mac); 89 return qeth_setdelmac_makerc(card, qeth_send_ipa_cmd(card, iob, 90 NULL, NULL)); 91 } 92 93 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) 94 { 95 int rc; 96 97 QETH_CARD_TEXT(card, 2, "L2Setmac"); 98 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC); 99 if (rc == 0) { 100 dev_info(&card->gdev->dev, 101 "MAC address %pM successfully registered on device %s\n", 102 mac, card->dev->name); 103 } else { 104 switch (rc) { 105 case -EEXIST: 106 dev_warn(&card->gdev->dev, 107 "MAC address %pM already exists\n", mac); 108 break; 109 case -EPERM: 110 dev_warn(&card->gdev->dev, 111 "MAC address %pM is not authorized\n", mac); 112 break; 113 } 114 } 115 return rc; 116 } 117 118 static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac) 119 { 120 enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ? 121 IPA_CMD_SETGMAC : IPA_CMD_SETVMAC; 122 int rc; 123 124 QETH_CARD_TEXT(card, 2, "L2Wmac"); 125 rc = qeth_l2_send_setdelmac(card, mac, cmd); 126 if (rc == -EEXIST) 127 QETH_DBF_MESSAGE(2, "MAC already registered on device %x\n", 128 CARD_DEVID(card)); 129 else if (rc) 130 QETH_DBF_MESSAGE(2, "Failed to register MAC on device %x: %d\n", 131 CARD_DEVID(card), rc); 132 return rc; 133 } 134 135 static int qeth_l2_remove_mac(struct qeth_card *card, u8 *mac) 136 { 137 enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ? 138 IPA_CMD_DELGMAC : IPA_CMD_DELVMAC; 139 int rc; 140 141 QETH_CARD_TEXT(card, 2, "L2Rmac"); 142 rc = qeth_l2_send_setdelmac(card, mac, cmd); 143 if (rc) 144 QETH_DBF_MESSAGE(2, "Failed to delete MAC on device %u: %d\n", 145 CARD_DEVID(card), rc); 146 return rc; 147 } 148 149 static void qeth_l2_del_all_macs(struct qeth_card *card) 150 { 151 struct qeth_mac *mac; 152 struct hlist_node *tmp; 153 int i; 154 155 spin_lock_bh(&card->mclock); 156 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) { 157 hash_del(&mac->hnode); 158 kfree(mac); 159 } 160 spin_unlock_bh(&card->mclock); 161 } 162 163 static int qeth_l2_get_cast_type(struct qeth_card *card, struct sk_buff *skb) 164 { 165 if (card->info.type == QETH_CARD_TYPE_OSN) 166 return RTN_UNICAST; 167 if (is_broadcast_ether_addr(skb->data)) 168 return RTN_BROADCAST; 169 if (is_multicast_ether_addr(skb->data)) 170 return RTN_MULTICAST; 171 return RTN_UNICAST; 172 } 173 174 static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, 175 struct sk_buff *skb, int ipv, int cast_type, 176 unsigned int data_len) 177 { 178 struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 179 180 hdr->hdr.l2.pkt_length = data_len; 181 182 if (skb_is_gso(skb)) { 183 hdr->hdr.l2.id = QETH_HEADER_TYPE_L2_TSO; 184 } else { 185 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; 186 if (skb->ip_summed == CHECKSUM_PARTIAL) { 187 qeth_tx_csum(skb, &hdr->hdr.l2.flags[1], ipv); 188 if (card->options.performance_stats) 189 card->perf_stats.tx_csum++; 190 } 191 } 192 193 /* set byte byte 3 to casting flags */ 194 if (cast_type == RTN_MULTICAST) 195 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; 196 else if (cast_type == RTN_BROADCAST) 197 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; 198 else 199 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; 200 201 /* VSWITCH relies on the VLAN 202 * information to be present in 203 * the QDIO header */ 204 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { 205 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; 206 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); 207 } 208 } 209 210 static int qeth_setdelvlan_makerc(struct qeth_card *card, int retcode) 211 { 212 if (retcode) 213 QETH_CARD_TEXT_(card, 2, "err%04x", retcode); 214 215 switch (retcode) { 216 case IPA_RC_SUCCESS: 217 return 0; 218 case IPA_RC_L2_INVALID_VLAN_ID: 219 return -EINVAL; 220 case IPA_RC_L2_DUP_VLAN_ID: 221 return -EEXIST; 222 case IPA_RC_L2_VLAN_ID_NOT_FOUND: 223 return -ENOENT; 224 case IPA_RC_L2_VLAN_ID_NOT_ALLOWED: 225 return -EPERM; 226 case -ENOMEM: 227 return -ENOMEM; 228 default: 229 return -EIO; 230 } 231 } 232 233 static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, 234 struct qeth_reply *reply, 235 unsigned long data) 236 { 237 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 238 239 QETH_CARD_TEXT(card, 2, "L2sdvcb"); 240 if (cmd->hdr.return_code) { 241 QETH_DBF_MESSAGE(2, "Error in processing VLAN %u on device %x: %#x.\n", 242 cmd->data.setdelvlan.vlan_id, 243 CARD_DEVID(card), cmd->hdr.return_code); 244 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); 245 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); 246 } 247 return 0; 248 } 249 250 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, 251 enum qeth_ipa_cmds ipacmd) 252 { 253 struct qeth_ipa_cmd *cmd; 254 struct qeth_cmd_buffer *iob; 255 256 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); 257 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 258 if (!iob) 259 return -ENOMEM; 260 cmd = __ipa_cmd(iob); 261 cmd->data.setdelvlan.vlan_id = i; 262 return qeth_setdelvlan_makerc(card, qeth_send_ipa_cmd(card, iob, 263 qeth_l2_send_setdelvlan_cb, NULL)); 264 } 265 266 static void qeth_l2_process_vlans(struct qeth_card *card) 267 { 268 struct qeth_vlan_vid *id; 269 270 QETH_CARD_TEXT(card, 3, "L2prcvln"); 271 mutex_lock(&card->vid_list_mutex); 272 list_for_each_entry(id, &card->vid_list, list) { 273 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); 274 } 275 mutex_unlock(&card->vid_list_mutex); 276 } 277 278 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, 279 __be16 proto, u16 vid) 280 { 281 struct qeth_card *card = dev->ml_priv; 282 struct qeth_vlan_vid *id; 283 int rc; 284 285 QETH_CARD_TEXT_(card, 4, "aid:%d", vid); 286 if (!vid) 287 return 0; 288 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 289 QETH_CARD_TEXT(card, 3, "aidREC"); 290 return 0; 291 } 292 id = kmalloc(sizeof(*id), GFP_KERNEL); 293 if (id) { 294 id->vid = vid; 295 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); 296 if (rc) { 297 kfree(id); 298 return rc; 299 } 300 mutex_lock(&card->vid_list_mutex); 301 list_add_tail(&id->list, &card->vid_list); 302 mutex_unlock(&card->vid_list_mutex); 303 } else { 304 return -ENOMEM; 305 } 306 return 0; 307 } 308 309 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, 310 __be16 proto, u16 vid) 311 { 312 struct qeth_vlan_vid *id, *tmpid = NULL; 313 struct qeth_card *card = dev->ml_priv; 314 int rc = 0; 315 316 QETH_CARD_TEXT_(card, 4, "kid:%d", vid); 317 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 318 QETH_CARD_TEXT(card, 3, "kidREC"); 319 return 0; 320 } 321 mutex_lock(&card->vid_list_mutex); 322 list_for_each_entry(id, &card->vid_list, list) { 323 if (id->vid == vid) { 324 list_del(&id->list); 325 tmpid = id; 326 break; 327 } 328 } 329 mutex_unlock(&card->vid_list_mutex); 330 if (tmpid) { 331 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); 332 kfree(tmpid); 333 } 334 return rc; 335 } 336 337 static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) 338 { 339 QETH_DBF_TEXT(SETUP , 2, "stopcard"); 340 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 341 342 qeth_set_allowed_threads(card, 0, 1); 343 if (card->read.state == CH_STATE_UP && 344 card->write.state == CH_STATE_UP && 345 (card->state == CARD_STATE_UP)) { 346 if (recovery_mode && 347 card->info.type != QETH_CARD_TYPE_OSN) { 348 qeth_l2_stop(card->dev); 349 } else { 350 rtnl_lock(); 351 dev_close(card->dev); 352 rtnl_unlock(); 353 } 354 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 355 card->state = CARD_STATE_SOFTSETUP; 356 } 357 if (card->state == CARD_STATE_SOFTSETUP) { 358 qeth_l2_del_all_macs(card); 359 qeth_clear_ipacmd_list(card); 360 card->state = CARD_STATE_HARDSETUP; 361 } 362 if (card->state == CARD_STATE_HARDSETUP) { 363 qeth_qdio_clear_card(card, 0); 364 qeth_clear_qdio_buffers(card); 365 qeth_clear_working_pool_list(card); 366 card->state = CARD_STATE_DOWN; 367 } 368 if (card->state == CARD_STATE_DOWN) { 369 qeth_clear_cmd_buffers(&card->read); 370 qeth_clear_cmd_buffers(&card->write); 371 } 372 373 flush_workqueue(card->event_wq); 374 } 375 376 static int qeth_l2_process_inbound_buffer(struct qeth_card *card, 377 int budget, int *done) 378 { 379 int work_done = 0; 380 struct sk_buff *skb; 381 struct qeth_hdr *hdr; 382 unsigned int len; 383 384 *done = 0; 385 WARN_ON_ONCE(!budget); 386 while (budget) { 387 skb = qeth_core_get_next_skb(card, 388 &card->qdio.in_q->bufs[card->rx.b_index], 389 &card->rx.b_element, &card->rx.e_offset, &hdr); 390 if (!skb) { 391 *done = 1; 392 break; 393 } 394 switch (hdr->hdr.l2.id) { 395 case QETH_HEADER_TYPE_LAYER2: 396 skb->protocol = eth_type_trans(skb, skb->dev); 397 qeth_rx_csum(card, skb, hdr->hdr.l2.flags[1]); 398 if (skb->protocol == htons(ETH_P_802_2)) 399 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; 400 len = skb->len; 401 napi_gro_receive(&card->napi, skb); 402 break; 403 case QETH_HEADER_TYPE_OSN: 404 if (card->info.type == QETH_CARD_TYPE_OSN) { 405 skb_push(skb, sizeof(struct qeth_hdr)); 406 skb_copy_to_linear_data(skb, hdr, 407 sizeof(struct qeth_hdr)); 408 len = skb->len; 409 card->osn_info.data_cb(skb); 410 break; 411 } 412 /* else unknown */ 413 default: 414 dev_kfree_skb_any(skb); 415 QETH_CARD_TEXT(card, 3, "inbunkno"); 416 QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr)); 417 continue; 418 } 419 work_done++; 420 budget--; 421 card->stats.rx_packets++; 422 card->stats.rx_bytes += len; 423 } 424 return work_done; 425 } 426 427 static int qeth_l2_request_initial_mac(struct qeth_card *card) 428 { 429 int rc = 0; 430 431 QETH_DBF_TEXT(SETUP, 2, "l2reqmac"); 432 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); 433 434 if (MACHINE_IS_VM) { 435 rc = qeth_vm_request_mac(card); 436 if (!rc) 437 goto out; 438 QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %x: %#x\n", 439 CARD_DEVID(card), rc); 440 QETH_DBF_TEXT_(SETUP, 2, "err%04x", rc); 441 /* fall back to alternative mechanism: */ 442 } 443 444 if (!IS_OSN(card)) { 445 rc = qeth_setadpparms_change_macaddr(card); 446 if (!rc && is_valid_ether_addr(card->dev->dev_addr)) 447 goto out; 448 QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %x: %#x\n", 449 CARD_DEVID(card), rc); 450 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc); 451 /* fall back once more: */ 452 } 453 454 /* some devices don't support a custom MAC address: */ 455 if (card->info.type == QETH_CARD_TYPE_OSM || 456 card->info.type == QETH_CARD_TYPE_OSX) 457 return (rc) ? rc : -EADDRNOTAVAIL; 458 eth_hw_addr_random(card->dev); 459 460 out: 461 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, card->dev->addr_len); 462 return 0; 463 } 464 465 static int qeth_l2_set_mac_address(struct net_device *dev, void *p) 466 { 467 struct sockaddr *addr = p; 468 struct qeth_card *card = dev->ml_priv; 469 u8 old_addr[ETH_ALEN]; 470 int rc = 0; 471 472 QETH_CARD_TEXT(card, 3, "setmac"); 473 474 if (card->info.type == QETH_CARD_TYPE_OSN || 475 card->info.type == QETH_CARD_TYPE_OSM || 476 card->info.type == QETH_CARD_TYPE_OSX) { 477 QETH_CARD_TEXT(card, 3, "setmcTYP"); 478 return -EOPNOTSUPP; 479 } 480 QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN); 481 if (!is_valid_ether_addr(addr->sa_data)) 482 return -EADDRNOTAVAIL; 483 484 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 485 QETH_CARD_TEXT(card, 3, "setmcREC"); 486 return -ERESTARTSYS; 487 } 488 489 /* avoid racing against concurrent state change: */ 490 if (!mutex_trylock(&card->conf_mutex)) 491 return -EAGAIN; 492 493 if (!qeth_card_hw_is_reachable(card)) { 494 ether_addr_copy(dev->dev_addr, addr->sa_data); 495 goto out_unlock; 496 } 497 498 /* don't register the same address twice */ 499 if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) && 500 (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) 501 goto out_unlock; 502 503 /* add the new address, switch over, drop the old */ 504 rc = qeth_l2_send_setmac(card, addr->sa_data); 505 if (rc) 506 goto out_unlock; 507 ether_addr_copy(old_addr, dev->dev_addr); 508 ether_addr_copy(dev->dev_addr, addr->sa_data); 509 510 if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED) 511 qeth_l2_remove_mac(card, old_addr); 512 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; 513 514 out_unlock: 515 mutex_unlock(&card->conf_mutex); 516 return rc; 517 } 518 519 static void qeth_promisc_to_bridge(struct qeth_card *card) 520 { 521 struct net_device *dev = card->dev; 522 enum qeth_ipa_promisc_modes promisc_mode; 523 int role; 524 int rc; 525 526 QETH_CARD_TEXT(card, 3, "pmisc2br"); 527 528 if (!card->options.sbp.reflect_promisc) 529 return; 530 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON 531 : SET_PROMISC_MODE_OFF; 532 if (promisc_mode == card->info.promisc_mode) 533 return; 534 535 if (promisc_mode == SET_PROMISC_MODE_ON) { 536 if (card->options.sbp.reflect_promisc_primary) 537 role = QETH_SBP_ROLE_PRIMARY; 538 else 539 role = QETH_SBP_ROLE_SECONDARY; 540 } else 541 role = QETH_SBP_ROLE_NONE; 542 543 rc = qeth_bridgeport_setrole(card, role); 544 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x", 545 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc); 546 if (!rc) { 547 card->options.sbp.role = role; 548 card->info.promisc_mode = promisc_mode; 549 } 550 551 } 552 /* New MAC address is added to the hash table and marked to be written on card 553 * only if there is not in the hash table storage already 554 * 555 */ 556 static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha) 557 { 558 u32 mac_hash = get_unaligned((u32 *)(&ha->addr[2])); 559 struct qeth_mac *mac; 560 561 hash_for_each_possible(card->mac_htable, mac, hnode, mac_hash) { 562 if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) { 563 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING; 564 return; 565 } 566 } 567 568 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC); 569 if (!mac) 570 return; 571 572 ether_addr_copy(mac->mac_addr, ha->addr); 573 mac->disp_flag = QETH_DISP_ADDR_ADD; 574 575 hash_add(card->mac_htable, &mac->hnode, mac_hash); 576 } 577 578 static void qeth_l2_set_rx_mode(struct net_device *dev) 579 { 580 struct qeth_card *card = dev->ml_priv; 581 struct netdev_hw_addr *ha; 582 struct qeth_mac *mac; 583 struct hlist_node *tmp; 584 int i; 585 int rc; 586 587 if (card->info.type == QETH_CARD_TYPE_OSN) 588 return; 589 590 QETH_CARD_TEXT(card, 3, "setmulti"); 591 if (qeth_threads_running(card, QETH_RECOVER_THREAD) && 592 (card->state != CARD_STATE_UP)) 593 return; 594 595 spin_lock_bh(&card->mclock); 596 597 netdev_for_each_mc_addr(ha, dev) 598 qeth_l2_add_mac(card, ha); 599 netdev_for_each_uc_addr(ha, dev) 600 qeth_l2_add_mac(card, ha); 601 602 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) { 603 switch (mac->disp_flag) { 604 case QETH_DISP_ADDR_DELETE: 605 qeth_l2_remove_mac(card, mac->mac_addr); 606 hash_del(&mac->hnode); 607 kfree(mac); 608 break; 609 case QETH_DISP_ADDR_ADD: 610 rc = qeth_l2_write_mac(card, mac->mac_addr); 611 if (rc) { 612 hash_del(&mac->hnode); 613 kfree(mac); 614 break; 615 } 616 /* fall through */ 617 default: 618 /* for next call to set_rx_mode(): */ 619 mac->disp_flag = QETH_DISP_ADDR_DELETE; 620 } 621 } 622 623 spin_unlock_bh(&card->mclock); 624 625 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) 626 qeth_setadp_promisc_mode(card); 627 else 628 qeth_promisc_to_bridge(card); 629 } 630 631 static int qeth_l2_xmit_osn(struct qeth_card *card, struct sk_buff *skb, 632 struct qeth_qdio_out_q *queue) 633 { 634 struct qeth_hdr *hdr = (struct qeth_hdr *)skb->data; 635 addr_t end = (addr_t)(skb->data + sizeof(*hdr)); 636 addr_t start = (addr_t)skb->data; 637 unsigned int elements = 0; 638 unsigned int hd_len = 0; 639 int rc; 640 641 if (skb->protocol == htons(ETH_P_IPV6)) 642 return -EPROTONOSUPPORT; 643 644 if (qeth_get_elements_for_range(start, end) > 1) { 645 /* Misaligned HW header, move it to its own buffer element. */ 646 hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); 647 if (!hdr) 648 return -ENOMEM; 649 hd_len = sizeof(*hdr); 650 skb_copy_from_linear_data(skb, (char *)hdr, hd_len); 651 elements++; 652 } 653 654 elements += qeth_count_elements(skb, hd_len); 655 if (elements > QETH_MAX_BUFFER_ELEMENTS(card)) { 656 rc = -E2BIG; 657 goto out; 658 } 659 660 rc = qeth_do_send_packet(card, queue, skb, hdr, hd_len, hd_len, 661 elements); 662 out: 663 if (rc && hd_len) 664 kmem_cache_free(qeth_core_header_cache, hdr); 665 return rc; 666 } 667 668 static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, 669 struct net_device *dev) 670 { 671 struct qeth_card *card = dev->ml_priv; 672 int cast_type = qeth_l2_get_cast_type(card, skb); 673 int ipv = qeth_get_ip_version(skb); 674 struct qeth_qdio_out_q *queue; 675 int tx_bytes = skb->len; 676 int rc; 677 678 if (card->state != CARD_STATE_UP) { 679 card->stats.tx_carrier_errors++; 680 goto tx_drop; 681 } 682 683 queue = qeth_get_tx_queue(card, skb, ipv, cast_type); 684 685 if (card->options.performance_stats) { 686 card->perf_stats.outbound_cnt++; 687 card->perf_stats.outbound_start_time = qeth_get_micros(); 688 } 689 netif_stop_queue(dev); 690 691 if (IS_OSN(card)) 692 rc = qeth_l2_xmit_osn(card, skb, queue); 693 else 694 rc = qeth_xmit(card, skb, queue, ipv, cast_type, 695 qeth_l2_fill_header); 696 697 if (!rc) { 698 card->stats.tx_packets++; 699 card->stats.tx_bytes += tx_bytes; 700 if (card->options.performance_stats) 701 card->perf_stats.outbound_time += qeth_get_micros() - 702 card->perf_stats.outbound_start_time; 703 netif_wake_queue(dev); 704 return NETDEV_TX_OK; 705 } else if (rc == -EBUSY) { 706 return NETDEV_TX_BUSY; 707 } /* else fall through */ 708 709 tx_drop: 710 card->stats.tx_dropped++; 711 card->stats.tx_errors++; 712 dev_kfree_skb_any(skb); 713 netif_wake_queue(dev); 714 return NETDEV_TX_OK; 715 } 716 717 static int __qeth_l2_open(struct net_device *dev) 718 { 719 struct qeth_card *card = dev->ml_priv; 720 int rc = 0; 721 722 QETH_CARD_TEXT(card, 4, "qethopen"); 723 if (card->state == CARD_STATE_UP) 724 return rc; 725 if (card->state != CARD_STATE_SOFTSETUP) 726 return -ENODEV; 727 728 if ((card->info.type != QETH_CARD_TYPE_OSN) && 729 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { 730 QETH_CARD_TEXT(card, 4, "nomacadr"); 731 return -EPERM; 732 } 733 card->data.state = CH_STATE_UP; 734 card->state = CARD_STATE_UP; 735 netif_start_queue(dev); 736 737 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { 738 napi_enable(&card->napi); 739 local_bh_disable(); 740 napi_schedule(&card->napi); 741 /* kick-start the NAPI softirq: */ 742 local_bh_enable(); 743 } else 744 rc = -EIO; 745 return rc; 746 } 747 748 static int qeth_l2_open(struct net_device *dev) 749 { 750 struct qeth_card *card = dev->ml_priv; 751 752 QETH_CARD_TEXT(card, 5, "qethope_"); 753 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 754 QETH_CARD_TEXT(card, 3, "openREC"); 755 return -ERESTARTSYS; 756 } 757 return __qeth_l2_open(dev); 758 } 759 760 static int qeth_l2_stop(struct net_device *dev) 761 { 762 struct qeth_card *card = dev->ml_priv; 763 764 QETH_CARD_TEXT(card, 4, "qethstop"); 765 netif_tx_disable(dev); 766 if (card->state == CARD_STATE_UP) { 767 card->state = CARD_STATE_SOFTSETUP; 768 napi_disable(&card->napi); 769 } 770 return 0; 771 } 772 773 static const struct device_type qeth_l2_devtype = { 774 .name = "qeth_layer2", 775 .groups = qeth_l2_attr_groups, 776 }; 777 778 static int qeth_l2_probe_device(struct ccwgroup_device *gdev) 779 { 780 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 781 int rc; 782 783 if (gdev->dev.type == &qeth_generic_devtype) { 784 rc = qeth_l2_create_device_attributes(&gdev->dev); 785 if (rc) 786 return rc; 787 } 788 INIT_LIST_HEAD(&card->vid_list); 789 hash_init(card->mac_htable); 790 card->info.hwtrap = 0; 791 qeth_l2_vnicc_set_defaults(card); 792 return 0; 793 } 794 795 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) 796 { 797 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 798 799 if (cgdev->dev.type == &qeth_generic_devtype) 800 qeth_l2_remove_device_attributes(&cgdev->dev); 801 qeth_set_allowed_threads(card, 0, 1); 802 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 803 804 if (cgdev->state == CCWGROUP_ONLINE) 805 qeth_l2_set_offline(cgdev); 806 807 cancel_work_sync(&card->close_dev_work); 808 if (qeth_netdev_is_registered(card->dev)) 809 unregister_netdev(card->dev); 810 } 811 812 static const struct ethtool_ops qeth_l2_ethtool_ops = { 813 .get_link = ethtool_op_get_link, 814 .get_strings = qeth_core_get_strings, 815 .get_ethtool_stats = qeth_core_get_ethtool_stats, 816 .get_sset_count = qeth_core_get_sset_count, 817 .get_drvinfo = qeth_core_get_drvinfo, 818 .get_link_ksettings = qeth_core_ethtool_get_link_ksettings, 819 }; 820 821 static const struct ethtool_ops qeth_l2_osn_ops = { 822 .get_strings = qeth_core_get_strings, 823 .get_ethtool_stats = qeth_core_get_ethtool_stats, 824 .get_sset_count = qeth_core_get_sset_count, 825 .get_drvinfo = qeth_core_get_drvinfo, 826 }; 827 828 static const struct net_device_ops qeth_l2_netdev_ops = { 829 .ndo_open = qeth_l2_open, 830 .ndo_stop = qeth_l2_stop, 831 .ndo_get_stats = qeth_get_stats, 832 .ndo_start_xmit = qeth_l2_hard_start_xmit, 833 .ndo_features_check = qeth_features_check, 834 .ndo_validate_addr = eth_validate_addr, 835 .ndo_set_rx_mode = qeth_l2_set_rx_mode, 836 .ndo_do_ioctl = qeth_do_ioctl, 837 .ndo_set_mac_address = qeth_l2_set_mac_address, 838 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, 839 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, 840 .ndo_tx_timeout = qeth_tx_timeout, 841 .ndo_fix_features = qeth_fix_features, 842 .ndo_set_features = qeth_set_features 843 }; 844 845 static int qeth_l2_setup_netdev(struct qeth_card *card, bool carrier_ok) 846 { 847 int rc; 848 849 if (qeth_netdev_is_registered(card->dev)) 850 return 0; 851 852 card->dev->priv_flags |= IFF_UNICAST_FLT; 853 card->dev->netdev_ops = &qeth_l2_netdev_ops; 854 if (card->info.type == QETH_CARD_TYPE_OSN) { 855 card->dev->ethtool_ops = &qeth_l2_osn_ops; 856 card->dev->flags |= IFF_NOARP; 857 } else { 858 card->dev->ethtool_ops = &qeth_l2_ethtool_ops; 859 card->dev->needed_headroom = sizeof(struct qeth_hdr); 860 } 861 862 if (card->info.type == QETH_CARD_TYPE_OSM) 863 card->dev->features |= NETIF_F_VLAN_CHALLENGED; 864 else 865 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; 866 867 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) { 868 card->dev->features |= NETIF_F_SG; 869 /* OSA 3S and earlier has no RX/TX support */ 870 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) { 871 card->dev->hw_features |= NETIF_F_IP_CSUM; 872 card->dev->vlan_features |= NETIF_F_IP_CSUM; 873 } 874 } 875 if (qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) { 876 card->dev->hw_features |= NETIF_F_IPV6_CSUM; 877 card->dev->vlan_features |= NETIF_F_IPV6_CSUM; 878 } 879 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM) || 880 qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) { 881 card->dev->hw_features |= NETIF_F_RXCSUM; 882 card->dev->vlan_features |= NETIF_F_RXCSUM; 883 } 884 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { 885 card->dev->hw_features |= NETIF_F_TSO; 886 card->dev->vlan_features |= NETIF_F_TSO; 887 } 888 if (qeth_is_supported6(card, IPA_OUTBOUND_TSO)) { 889 card->dev->hw_features |= NETIF_F_TSO6; 890 card->dev->vlan_features |= NETIF_F_TSO6; 891 } 892 893 if (card->dev->hw_features & (NETIF_F_TSO | NETIF_F_TSO6)) { 894 card->dev->needed_headroom = sizeof(struct qeth_hdr_tso); 895 netif_set_gso_max_size(card->dev, 896 PAGE_SIZE * (QDIO_MAX_ELEMENTS_PER_BUFFER - 1)); 897 } 898 899 if (!is_valid_ether_addr(card->dev->dev_addr)) 900 qeth_l2_request_initial_mac(card); 901 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT); 902 rc = register_netdev(card->dev); 903 if (!rc && carrier_ok) 904 netif_carrier_on(card->dev); 905 906 if (rc) 907 card->dev->netdev_ops = NULL; 908 return rc; 909 } 910 911 static int qeth_l2_start_ipassists(struct qeth_card *card) 912 { 913 /* configure isolation level */ 914 if (qeth_set_access_ctrl_online(card, 0)) 915 return -ENODEV; 916 return 0; 917 } 918 919 static void qeth_l2_trace_features(struct qeth_card *card) 920 { 921 /* Set BridgePort features */ 922 QETH_CARD_TEXT(card, 2, "featuSBP"); 923 QETH_CARD_HEX(card, 2, &card->options.sbp.supported_funcs, 924 sizeof(card->options.sbp.supported_funcs)); 925 /* VNIC Characteristics features */ 926 QETH_CARD_TEXT(card, 2, "feaVNICC"); 927 QETH_CARD_HEX(card, 2, &card->options.vnicc.sup_chars, 928 sizeof(card->options.vnicc.sup_chars)); 929 } 930 931 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) 932 { 933 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 934 int rc = 0; 935 enum qeth_card_states recover_flag; 936 bool carrier_ok; 937 938 mutex_lock(&card->discipline_mutex); 939 mutex_lock(&card->conf_mutex); 940 QETH_DBF_TEXT(SETUP, 2, "setonlin"); 941 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 942 943 recover_flag = card->state; 944 rc = qeth_core_hardsetup_card(card, &carrier_ok); 945 if (rc) { 946 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc); 947 rc = -ENODEV; 948 goto out_remove; 949 } 950 qeth_bridgeport_query_support(card); 951 if (card->options.sbp.supported_funcs) 952 dev_info(&card->gdev->dev, 953 "The device represents a Bridge Capable Port\n"); 954 955 rc = qeth_l2_setup_netdev(card, carrier_ok); 956 if (rc) 957 goto out_remove; 958 959 if (card->info.type != QETH_CARD_TYPE_OSN && 960 !qeth_l2_send_setmac(card, card->dev->dev_addr)) 961 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; 962 963 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { 964 if (card->info.hwtrap && 965 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) 966 card->info.hwtrap = 0; 967 } else 968 card->info.hwtrap = 0; 969 970 /* for the rx_bcast characteristic, init VNICC after setmac */ 971 qeth_l2_vnicc_init(card); 972 973 qeth_trace_features(card); 974 qeth_l2_trace_features(card); 975 976 qeth_l2_setup_bridgeport_attrs(card); 977 978 card->state = CARD_STATE_HARDSETUP; 979 qeth_print_status_message(card); 980 981 /* softsetup */ 982 QETH_DBF_TEXT(SETUP, 2, "softsetp"); 983 984 if ((card->info.type == QETH_CARD_TYPE_OSD) || 985 (card->info.type == QETH_CARD_TYPE_OSX)) { 986 rc = qeth_l2_start_ipassists(card); 987 if (rc) 988 goto out_remove; 989 } 990 991 if (card->info.type != QETH_CARD_TYPE_OSN) 992 qeth_l2_process_vlans(card); 993 994 netif_tx_disable(card->dev); 995 996 rc = qeth_init_qdio_queues(card); 997 if (rc) { 998 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 999 rc = -ENODEV; 1000 goto out_remove; 1001 } 1002 card->state = CARD_STATE_SOFTSETUP; 1003 1004 qeth_set_allowed_threads(card, 0xffffffff, 0); 1005 1006 qeth_enable_hw_features(card->dev); 1007 if (recover_flag == CARD_STATE_RECOVER) { 1008 if (recovery_mode && 1009 card->info.type != QETH_CARD_TYPE_OSN) { 1010 __qeth_l2_open(card->dev); 1011 qeth_l2_set_rx_mode(card->dev); 1012 } else { 1013 rtnl_lock(); 1014 dev_open(card->dev, NULL); 1015 rtnl_unlock(); 1016 } 1017 } 1018 /* let user_space know that device is online */ 1019 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); 1020 mutex_unlock(&card->conf_mutex); 1021 mutex_unlock(&card->discipline_mutex); 1022 return 0; 1023 1024 out_remove: 1025 qeth_l2_stop_card(card, 0); 1026 ccw_device_set_offline(CARD_DDEV(card)); 1027 ccw_device_set_offline(CARD_WDEV(card)); 1028 ccw_device_set_offline(CARD_RDEV(card)); 1029 qdio_free(CARD_DDEV(card)); 1030 if (recover_flag == CARD_STATE_RECOVER) 1031 card->state = CARD_STATE_RECOVER; 1032 else 1033 card->state = CARD_STATE_DOWN; 1034 mutex_unlock(&card->conf_mutex); 1035 mutex_unlock(&card->discipline_mutex); 1036 return rc; 1037 } 1038 1039 static int qeth_l2_set_online(struct ccwgroup_device *gdev) 1040 { 1041 return __qeth_l2_set_online(gdev, 0); 1042 } 1043 1044 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, 1045 int recovery_mode) 1046 { 1047 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 1048 int rc = 0, rc2 = 0, rc3 = 0; 1049 enum qeth_card_states recover_flag; 1050 1051 mutex_lock(&card->discipline_mutex); 1052 mutex_lock(&card->conf_mutex); 1053 QETH_DBF_TEXT(SETUP, 3, "setoffl"); 1054 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); 1055 1056 netif_carrier_off(card->dev); 1057 recover_flag = card->state; 1058 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { 1059 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1060 card->info.hwtrap = 1; 1061 } 1062 qeth_l2_stop_card(card, recovery_mode); 1063 rc = ccw_device_set_offline(CARD_DDEV(card)); 1064 rc2 = ccw_device_set_offline(CARD_WDEV(card)); 1065 rc3 = ccw_device_set_offline(CARD_RDEV(card)); 1066 if (!rc) 1067 rc = (rc2) ? rc2 : rc3; 1068 if (rc) 1069 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 1070 qdio_free(CARD_DDEV(card)); 1071 if (recover_flag == CARD_STATE_UP) 1072 card->state = CARD_STATE_RECOVER; 1073 /* let user_space know that device is offline */ 1074 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); 1075 mutex_unlock(&card->conf_mutex); 1076 mutex_unlock(&card->discipline_mutex); 1077 return 0; 1078 } 1079 1080 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) 1081 { 1082 return __qeth_l2_set_offline(cgdev, 0); 1083 } 1084 1085 static int qeth_l2_recover(void *ptr) 1086 { 1087 struct qeth_card *card; 1088 int rc = 0; 1089 1090 card = (struct qeth_card *) ptr; 1091 QETH_CARD_TEXT(card, 2, "recover1"); 1092 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) 1093 return 0; 1094 QETH_CARD_TEXT(card, 2, "recover2"); 1095 dev_warn(&card->gdev->dev, 1096 "A recovery process has been started for the device\n"); 1097 qeth_set_recovery_task(card); 1098 __qeth_l2_set_offline(card->gdev, 1); 1099 rc = __qeth_l2_set_online(card->gdev, 1); 1100 if (!rc) 1101 dev_info(&card->gdev->dev, 1102 "Device successfully recovered!\n"); 1103 else { 1104 qeth_close_dev(card); 1105 dev_warn(&card->gdev->dev, "The qeth device driver " 1106 "failed to recover an error on the device\n"); 1107 } 1108 qeth_clear_recovery_task(card); 1109 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 1110 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); 1111 return 0; 1112 } 1113 1114 static int __init qeth_l2_init(void) 1115 { 1116 pr_info("register layer 2 discipline\n"); 1117 return 0; 1118 } 1119 1120 static void __exit qeth_l2_exit(void) 1121 { 1122 pr_info("unregister layer 2 discipline\n"); 1123 } 1124 1125 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) 1126 { 1127 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1128 1129 netif_device_detach(card->dev); 1130 qeth_set_allowed_threads(card, 0, 1); 1131 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 1132 if (gdev->state == CCWGROUP_OFFLINE) 1133 return 0; 1134 if (card->state == CARD_STATE_UP) { 1135 if (card->info.hwtrap) 1136 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1137 __qeth_l2_set_offline(card->gdev, 1); 1138 } else 1139 __qeth_l2_set_offline(card->gdev, 0); 1140 return 0; 1141 } 1142 1143 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) 1144 { 1145 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1146 int rc = 0; 1147 1148 if (card->state == CARD_STATE_RECOVER) { 1149 rc = __qeth_l2_set_online(card->gdev, 1); 1150 if (rc) { 1151 rtnl_lock(); 1152 dev_close(card->dev); 1153 rtnl_unlock(); 1154 } 1155 } else 1156 rc = __qeth_l2_set_online(card->gdev, 0); 1157 1158 qeth_set_allowed_threads(card, 0xffffffff, 0); 1159 netif_device_attach(card->dev); 1160 if (rc) 1161 dev_warn(&card->gdev->dev, "The qeth device driver " 1162 "failed to recover an error on the device\n"); 1163 return rc; 1164 } 1165 1166 /* Returns zero if the command is successfully "consumed" */ 1167 static int qeth_l2_control_event(struct qeth_card *card, 1168 struct qeth_ipa_cmd *cmd) 1169 { 1170 switch (cmd->hdr.command) { 1171 case IPA_CMD_SETBRIDGEPORT_OSA: 1172 case IPA_CMD_SETBRIDGEPORT_IQD: 1173 if (cmd->data.sbp.hdr.command_code == 1174 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { 1175 qeth_bridge_state_change(card, cmd); 1176 return 0; 1177 } else 1178 return 1; 1179 case IPA_CMD_ADDRESS_CHANGE_NOTIF: 1180 qeth_bridge_host_event(card, cmd); 1181 return 0; 1182 default: 1183 return 1; 1184 } 1185 } 1186 1187 struct qeth_discipline qeth_l2_discipline = { 1188 .devtype = &qeth_l2_devtype, 1189 .process_rx_buffer = qeth_l2_process_inbound_buffer, 1190 .recover = qeth_l2_recover, 1191 .setup = qeth_l2_probe_device, 1192 .remove = qeth_l2_remove_device, 1193 .set_online = qeth_l2_set_online, 1194 .set_offline = qeth_l2_set_offline, 1195 .freeze = qeth_l2_pm_suspend, 1196 .thaw = qeth_l2_pm_resume, 1197 .restore = qeth_l2_pm_resume, 1198 .do_ioctl = NULL, 1199 .control_event_handler = qeth_l2_control_event, 1200 }; 1201 EXPORT_SYMBOL_GPL(qeth_l2_discipline); 1202 1203 static int qeth_osn_send_control_data(struct qeth_card *card, int len, 1204 struct qeth_cmd_buffer *iob) 1205 { 1206 struct qeth_channel *channel = iob->channel; 1207 int rc = 0; 1208 1209 QETH_CARD_TEXT(card, 5, "osndctrd"); 1210 1211 wait_event(card->wait_q, 1212 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1213 qeth_prepare_control_data(card, len, iob); 1214 QETH_CARD_TEXT(card, 6, "osnoirqp"); 1215 spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1216 rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1217 (addr_t) iob, 0, 0, QETH_IPA_TIMEOUT); 1218 spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 1219 if (rc) { 1220 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " 1221 "ccw_device_start rc = %i\n", rc); 1222 QETH_CARD_TEXT_(card, 2, " err%d", rc); 1223 qeth_release_buffer(channel, iob); 1224 atomic_set(&channel->irq_pending, 0); 1225 wake_up(&card->wait_q); 1226 } 1227 return rc; 1228 } 1229 1230 static int qeth_osn_send_ipa_cmd(struct qeth_card *card, 1231 struct qeth_cmd_buffer *iob, int data_len) 1232 { 1233 u16 s1, s2; 1234 1235 QETH_CARD_TEXT(card, 4, "osndipa"); 1236 1237 qeth_prepare_ipa_cmd(card, iob); 1238 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); 1239 s2 = (u16)data_len; 1240 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 1241 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 1242 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 1243 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 1244 return qeth_osn_send_control_data(card, s1, iob); 1245 } 1246 1247 int qeth_osn_assist(struct net_device *dev, void *data, int data_len) 1248 { 1249 struct qeth_cmd_buffer *iob; 1250 struct qeth_card *card; 1251 1252 if (!dev) 1253 return -ENODEV; 1254 card = dev->ml_priv; 1255 if (!card) 1256 return -ENODEV; 1257 QETH_CARD_TEXT(card, 2, "osnsdmc"); 1258 if (!qeth_card_hw_is_reachable(card)) 1259 return -ENODEV; 1260 iob = qeth_wait_for_buffer(&card->write); 1261 memcpy(__ipa_cmd(iob), data, data_len); 1262 return qeth_osn_send_ipa_cmd(card, iob, data_len); 1263 } 1264 EXPORT_SYMBOL(qeth_osn_assist); 1265 1266 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, 1267 int (*assist_cb)(struct net_device *, void *), 1268 int (*data_cb)(struct sk_buff *)) 1269 { 1270 struct qeth_card *card; 1271 char bus_id[16]; 1272 u16 devno; 1273 1274 memcpy(&devno, read_dev_no, 2); 1275 sprintf(bus_id, "0.0.%04x", devno); 1276 card = qeth_get_card_by_busid(bus_id); 1277 if (!card || !IS_OSN(card)) 1278 return -ENODEV; 1279 *dev = card->dev; 1280 1281 QETH_CARD_TEXT(card, 2, "osnreg"); 1282 if ((assist_cb == NULL) || (data_cb == NULL)) 1283 return -EINVAL; 1284 card->osn_info.assist_cb = assist_cb; 1285 card->osn_info.data_cb = data_cb; 1286 return 0; 1287 } 1288 EXPORT_SYMBOL(qeth_osn_register); 1289 1290 void qeth_osn_deregister(struct net_device *dev) 1291 { 1292 struct qeth_card *card; 1293 1294 if (!dev) 1295 return; 1296 card = dev->ml_priv; 1297 if (!card) 1298 return; 1299 QETH_CARD_TEXT(card, 2, "osndereg"); 1300 card->osn_info.assist_cb = NULL; 1301 card->osn_info.data_cb = NULL; 1302 return; 1303 } 1304 EXPORT_SYMBOL(qeth_osn_deregister); 1305 1306 /* SETBRIDGEPORT support, async notifications */ 1307 1308 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; 1309 1310 /** 1311 * qeth_bridge_emit_host_event() - bridgeport address change notification 1312 * @card: qeth_card structure pointer, for udev events. 1313 * @evtype: "normal" register/unregister, or abort, or reset. For abort 1314 * and reset token and addr_lnid are unused and may be NULL. 1315 * @code: event bitmask: high order bit 0x80 value 1 means removal of an 1316 * object, 0 - addition of an object. 1317 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. 1318 * @token: "network token" structure identifying physical address of the port. 1319 * @addr_lnid: pointer to structure with MAC address and VLAN ID. 1320 * 1321 * This function is called when registrations and deregistrations are 1322 * reported by the hardware, and also when notifications are enabled - 1323 * for all currently registered addresses. 1324 */ 1325 static void qeth_bridge_emit_host_event(struct qeth_card *card, 1326 enum qeth_an_event_type evtype, 1327 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid) 1328 { 1329 char str[7][32]; 1330 char *env[8]; 1331 int i = 0; 1332 1333 switch (evtype) { 1334 case anev_reg_unreg: 1335 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", 1336 (code & IPA_ADDR_CHANGE_CODE_REMOVAL) 1337 ? "deregister" : "register"); 1338 env[i] = str[i]; i++; 1339 if (code & IPA_ADDR_CHANGE_CODE_VLANID) { 1340 snprintf(str[i], sizeof(str[i]), "VLAN=%d", 1341 addr_lnid->lnid); 1342 env[i] = str[i]; i++; 1343 } 1344 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { 1345 snprintf(str[i], sizeof(str[i]), "MAC=%pM", 1346 addr_lnid->mac); 1347 env[i] = str[i]; i++; 1348 } 1349 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", 1350 token->cssid, token->ssid, token->devnum); 1351 env[i] = str[i]; i++; 1352 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); 1353 env[i] = str[i]; i++; 1354 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", 1355 token->chpid); 1356 env[i] = str[i]; i++; 1357 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); 1358 env[i] = str[i]; i++; 1359 break; 1360 case anev_abort: 1361 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); 1362 env[i] = str[i]; i++; 1363 break; 1364 case anev_reset: 1365 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); 1366 env[i] = str[i]; i++; 1367 break; 1368 } 1369 env[i] = NULL; 1370 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); 1371 } 1372 1373 struct qeth_bridge_state_data { 1374 struct work_struct worker; 1375 struct qeth_card *card; 1376 struct qeth_sbp_state_change qports; 1377 }; 1378 1379 static void qeth_bridge_state_change_worker(struct work_struct *work) 1380 { 1381 struct qeth_bridge_state_data *data = 1382 container_of(work, struct qeth_bridge_state_data, worker); 1383 /* We are only interested in the first entry - local port */ 1384 struct qeth_sbp_port_entry *entry = &data->qports.entry[0]; 1385 char env_locrem[32]; 1386 char env_role[32]; 1387 char env_state[32]; 1388 char *env[] = { 1389 env_locrem, 1390 env_role, 1391 env_state, 1392 NULL 1393 }; 1394 1395 /* Role should not change by itself, but if it did, */ 1396 /* information from the hardware is authoritative. */ 1397 mutex_lock(&data->card->conf_mutex); 1398 data->card->options.sbp.role = entry->role; 1399 mutex_unlock(&data->card->conf_mutex); 1400 1401 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); 1402 snprintf(env_role, sizeof(env_role), "ROLE=%s", 1403 (entry->role == QETH_SBP_ROLE_NONE) ? "none" : 1404 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : 1405 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : 1406 "<INVALID>"); 1407 snprintf(env_state, sizeof(env_state), "STATE=%s", 1408 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : 1409 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" : 1410 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" : 1411 "<INVALID>"); 1412 kobject_uevent_env(&data->card->gdev->dev.kobj, 1413 KOBJ_CHANGE, env); 1414 kfree(data); 1415 } 1416 1417 static void qeth_bridge_state_change(struct qeth_card *card, 1418 struct qeth_ipa_cmd *cmd) 1419 { 1420 struct qeth_sbp_state_change *qports = 1421 &cmd->data.sbp.data.state_change; 1422 struct qeth_bridge_state_data *data; 1423 int extrasize; 1424 1425 QETH_CARD_TEXT(card, 2, "brstchng"); 1426 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1427 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length); 1428 return; 1429 } 1430 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries; 1431 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize, 1432 GFP_ATOMIC); 1433 if (!data) { 1434 QETH_CARD_TEXT(card, 2, "BPSalloc"); 1435 return; 1436 } 1437 INIT_WORK(&data->worker, qeth_bridge_state_change_worker); 1438 data->card = card; 1439 memcpy(&data->qports, qports, 1440 sizeof(struct qeth_sbp_state_change) + extrasize); 1441 queue_work(card->event_wq, &data->worker); 1442 } 1443 1444 struct qeth_bridge_host_data { 1445 struct work_struct worker; 1446 struct qeth_card *card; 1447 struct qeth_ipacmd_addr_change hostevs; 1448 }; 1449 1450 static void qeth_bridge_host_event_worker(struct work_struct *work) 1451 { 1452 struct qeth_bridge_host_data *data = 1453 container_of(work, struct qeth_bridge_host_data, worker); 1454 int i; 1455 1456 if (data->hostevs.lost_event_mask) { 1457 dev_info(&data->card->gdev->dev, 1458 "Address notification from the Bridge Port stopped %s (%s)\n", 1459 data->card->dev->name, 1460 (data->hostevs.lost_event_mask == 0x01) 1461 ? "Overflow" 1462 : (data->hostevs.lost_event_mask == 0x02) 1463 ? "Bridge port state change" 1464 : "Unknown reason"); 1465 mutex_lock(&data->card->conf_mutex); 1466 data->card->options.sbp.hostnotification = 0; 1467 mutex_unlock(&data->card->conf_mutex); 1468 qeth_bridge_emit_host_event(data->card, anev_abort, 1469 0, NULL, NULL); 1470 } else 1471 for (i = 0; i < data->hostevs.num_entries; i++) { 1472 struct qeth_ipacmd_addr_change_entry *entry = 1473 &data->hostevs.entry[i]; 1474 qeth_bridge_emit_host_event(data->card, 1475 anev_reg_unreg, 1476 entry->change_code, 1477 &entry->token, &entry->addr_lnid); 1478 } 1479 kfree(data); 1480 } 1481 1482 static void qeth_bridge_host_event(struct qeth_card *card, 1483 struct qeth_ipa_cmd *cmd) 1484 { 1485 struct qeth_ipacmd_addr_change *hostevs = 1486 &cmd->data.addrchange; 1487 struct qeth_bridge_host_data *data; 1488 int extrasize; 1489 1490 QETH_CARD_TEXT(card, 2, "brhostev"); 1491 if (cmd->hdr.return_code != 0x0000) { 1492 if (cmd->hdr.return_code == 0x0010) { 1493 if (hostevs->lost_event_mask == 0x00) 1494 hostevs->lost_event_mask = 0xff; 1495 } else { 1496 QETH_CARD_TEXT_(card, 2, "BPHe%04x", 1497 cmd->hdr.return_code); 1498 return; 1499 } 1500 } 1501 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * 1502 hostevs->num_entries; 1503 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize, 1504 GFP_ATOMIC); 1505 if (!data) { 1506 QETH_CARD_TEXT(card, 2, "BPHalloc"); 1507 return; 1508 } 1509 INIT_WORK(&data->worker, qeth_bridge_host_event_worker); 1510 data->card = card; 1511 memcpy(&data->hostevs, hostevs, 1512 sizeof(struct qeth_ipacmd_addr_change) + extrasize); 1513 queue_work(card->event_wq, &data->worker); 1514 } 1515 1516 /* SETBRIDGEPORT support; sending commands */ 1517 1518 struct _qeth_sbp_cbctl { 1519 u16 ipa_rc; 1520 u16 cmd_rc; 1521 union { 1522 u32 supported; 1523 struct { 1524 enum qeth_sbp_roles *role; 1525 enum qeth_sbp_states *state; 1526 } qports; 1527 } data; 1528 }; 1529 1530 /** 1531 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes. 1532 * @card: qeth_card structure pointer, for debug messages. 1533 * @cbctl: state structure with hardware return codes. 1534 * @setcmd: IPA command code 1535 * 1536 * Returns negative errno-compatible error indication or 0 on success. 1537 */ 1538 static int qeth_bridgeport_makerc(struct qeth_card *card, 1539 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd) 1540 { 1541 int rc; 1542 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD); 1543 1544 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) || 1545 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc))) 1546 switch (cbctl->cmd_rc) { 1547 case IPA_RC_SUCCESS: 1548 rc = 0; 1549 break; 1550 case IPA_RC_L2_UNSUPPORTED_CMD: 1551 case IPA_RC_UNSUPPORTED_COMMAND: 1552 rc = -EOPNOTSUPP; 1553 break; 1554 case IPA_RC_SBP_OSA_NOT_CONFIGURED: 1555 case IPA_RC_SBP_IQD_NOT_CONFIGURED: 1556 rc = -ENODEV; /* maybe not the best code here? */ 1557 dev_err(&card->gdev->dev, 1558 "The device is not configured as a Bridge Port\n"); 1559 break; 1560 case IPA_RC_SBP_OSA_OS_MISMATCH: 1561 case IPA_RC_SBP_IQD_OS_MISMATCH: 1562 rc = -EPERM; 1563 dev_err(&card->gdev->dev, 1564 "A Bridge Port is already configured by a different operating system\n"); 1565 break; 1566 case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY: 1567 case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY: 1568 switch (setcmd) { 1569 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: 1570 rc = -EEXIST; 1571 dev_err(&card->gdev->dev, 1572 "The LAN already has a primary Bridge Port\n"); 1573 break; 1574 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: 1575 rc = -EBUSY; 1576 dev_err(&card->gdev->dev, 1577 "The device is already a primary Bridge Port\n"); 1578 break; 1579 default: 1580 rc = -EIO; 1581 } 1582 break; 1583 case IPA_RC_SBP_OSA_CURRENT_SECOND: 1584 case IPA_RC_SBP_IQD_CURRENT_SECOND: 1585 rc = -EBUSY; 1586 dev_err(&card->gdev->dev, 1587 "The device is already a secondary Bridge Port\n"); 1588 break; 1589 case IPA_RC_SBP_OSA_LIMIT_SECOND: 1590 case IPA_RC_SBP_IQD_LIMIT_SECOND: 1591 rc = -EEXIST; 1592 dev_err(&card->gdev->dev, 1593 "The LAN cannot have more secondary Bridge Ports\n"); 1594 break; 1595 case IPA_RC_SBP_OSA_CURRENT_PRIMARY: 1596 case IPA_RC_SBP_IQD_CURRENT_PRIMARY: 1597 rc = -EBUSY; 1598 dev_err(&card->gdev->dev, 1599 "The device is already a primary Bridge Port\n"); 1600 break; 1601 case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN: 1602 case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN: 1603 rc = -EACCES; 1604 dev_err(&card->gdev->dev, 1605 "The device is not authorized to be a Bridge Port\n"); 1606 break; 1607 default: 1608 rc = -EIO; 1609 } 1610 else 1611 switch (cbctl->ipa_rc) { 1612 case IPA_RC_NOTSUPP: 1613 rc = -EOPNOTSUPP; 1614 break; 1615 case IPA_RC_UNSUPPORTED_COMMAND: 1616 rc = -EOPNOTSUPP; 1617 break; 1618 default: 1619 rc = -EIO; 1620 } 1621 1622 if (rc) { 1623 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc); 1624 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc); 1625 } 1626 return rc; 1627 } 1628 1629 static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card, 1630 enum qeth_ipa_sbp_cmd sbp_cmd, 1631 unsigned int cmd_length) 1632 { 1633 enum qeth_ipa_cmds ipa_cmd = (card->info.type == QETH_CARD_TYPE_IQD) ? 1634 IPA_CMD_SETBRIDGEPORT_IQD : 1635 IPA_CMD_SETBRIDGEPORT_OSA; 1636 struct qeth_cmd_buffer *iob; 1637 struct qeth_ipa_cmd *cmd; 1638 1639 iob = qeth_get_ipacmd_buffer(card, ipa_cmd, 0); 1640 if (!iob) 1641 return iob; 1642 cmd = __ipa_cmd(iob); 1643 cmd->data.sbp.hdr.cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1644 cmd_length; 1645 cmd->data.sbp.hdr.command_code = sbp_cmd; 1646 cmd->data.sbp.hdr.used_total = 1; 1647 cmd->data.sbp.hdr.seq_no = 1; 1648 return iob; 1649 } 1650 1651 static int qeth_bridgeport_query_support_cb(struct qeth_card *card, 1652 struct qeth_reply *reply, unsigned long data) 1653 { 1654 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1655 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1656 QETH_CARD_TEXT(card, 2, "brqsupcb"); 1657 cbctl->ipa_rc = cmd->hdr.return_code; 1658 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1659 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) { 1660 cbctl->data.supported = 1661 cmd->data.sbp.data.query_cmds_supp.supported_cmds; 1662 } else { 1663 cbctl->data.supported = 0; 1664 } 1665 return 0; 1666 } 1667 1668 /** 1669 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. 1670 * @card: qeth_card structure pointer. 1671 * 1672 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card 1673 * strucutre: card->options.sbp.supported_funcs. 1674 */ 1675 static void qeth_bridgeport_query_support(struct qeth_card *card) 1676 { 1677 struct qeth_cmd_buffer *iob; 1678 struct _qeth_sbp_cbctl cbctl; 1679 1680 QETH_CARD_TEXT(card, 2, "brqsuppo"); 1681 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_COMMANDS_SUPPORTED, 1682 sizeof(struct qeth_sbp_query_cmds_supp)); 1683 if (!iob) 1684 return; 1685 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, 1686 (void *)&cbctl) || 1687 qeth_bridgeport_makerc(card, &cbctl, 1688 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) { 1689 /* non-zero makerc signifies failure, and produce messages */ 1690 card->options.sbp.role = QETH_SBP_ROLE_NONE; 1691 return; 1692 } 1693 card->options.sbp.supported_funcs = cbctl.data.supported; 1694 } 1695 1696 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, 1697 struct qeth_reply *reply, unsigned long data) 1698 { 1699 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1700 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports; 1701 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1702 1703 QETH_CARD_TEXT(card, 2, "brqprtcb"); 1704 cbctl->ipa_rc = cmd->hdr.return_code; 1705 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1706 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0)) 1707 return 0; 1708 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1709 cbctl->cmd_rc = 0xffff; 1710 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); 1711 return 0; 1712 } 1713 /* first entry contains the state of the local port */ 1714 if (qports->num_entries > 0) { 1715 if (cbctl->data.qports.role) 1716 *cbctl->data.qports.role = qports->entry[0].role; 1717 if (cbctl->data.qports.state) 1718 *cbctl->data.qports.state = qports->entry[0].state; 1719 } 1720 return 0; 1721 } 1722 1723 /** 1724 * qeth_bridgeport_query_ports() - query local bridgeport status. 1725 * @card: qeth_card structure pointer. 1726 * @role: Role of the port: 0-none, 1-primary, 2-secondary. 1727 * @state: State of the port: 0-inactive, 1-standby, 2-active. 1728 * 1729 * Returns negative errno-compatible error indication or 0 on success. 1730 * 1731 * 'role' and 'state' are not updated in case of hardware operation failure. 1732 */ 1733 int qeth_bridgeport_query_ports(struct qeth_card *card, 1734 enum qeth_sbp_roles *role, enum qeth_sbp_states *state) 1735 { 1736 int rc = 0; 1737 struct qeth_cmd_buffer *iob; 1738 struct _qeth_sbp_cbctl cbctl = { 1739 .data = { 1740 .qports = { 1741 .role = role, 1742 .state = state, 1743 }, 1744 }, 1745 }; 1746 1747 QETH_CARD_TEXT(card, 2, "brqports"); 1748 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) 1749 return -EOPNOTSUPP; 1750 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0); 1751 if (!iob) 1752 return -ENOMEM; 1753 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, 1754 (void *)&cbctl); 1755 if (rc < 0) 1756 return rc; 1757 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS); 1758 } 1759 1760 static int qeth_bridgeport_set_cb(struct qeth_card *card, 1761 struct qeth_reply *reply, unsigned long data) 1762 { 1763 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 1764 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1765 QETH_CARD_TEXT(card, 2, "brsetrcb"); 1766 cbctl->ipa_rc = cmd->hdr.return_code; 1767 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1768 return 0; 1769 } 1770 1771 /** 1772 * qeth_bridgeport_setrole() - Assign primary role to the port. 1773 * @card: qeth_card structure pointer. 1774 * @role: Role to assign. 1775 * 1776 * Returns negative errno-compatible error indication or 0 on success. 1777 */ 1778 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) 1779 { 1780 int rc = 0; 1781 int cmdlength; 1782 struct qeth_cmd_buffer *iob; 1783 struct _qeth_sbp_cbctl cbctl; 1784 enum qeth_ipa_sbp_cmd setcmd; 1785 1786 QETH_CARD_TEXT(card, 2, "brsetrol"); 1787 switch (role) { 1788 case QETH_SBP_ROLE_NONE: 1789 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; 1790 cmdlength = sizeof(struct qeth_sbp_reset_role); 1791 break; 1792 case QETH_SBP_ROLE_PRIMARY: 1793 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; 1794 cmdlength = sizeof(struct qeth_sbp_set_primary); 1795 break; 1796 case QETH_SBP_ROLE_SECONDARY: 1797 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; 1798 cmdlength = sizeof(struct qeth_sbp_set_secondary); 1799 break; 1800 default: 1801 return -EINVAL; 1802 } 1803 if (!(card->options.sbp.supported_funcs & setcmd)) 1804 return -EOPNOTSUPP; 1805 iob = qeth_sbp_build_cmd(card, setcmd, cmdlength); 1806 if (!iob) 1807 return -ENOMEM; 1808 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, 1809 (void *)&cbctl); 1810 if (rc < 0) 1811 return rc; 1812 return qeth_bridgeport_makerc(card, &cbctl, setcmd); 1813 } 1814 1815 /** 1816 * qeth_anset_makerc() - derive "traditional" error from hardware codes. 1817 * @card: qeth_card structure pointer, for debug messages. 1818 * 1819 * Returns negative errno-compatible error indication or 0 on success. 1820 */ 1821 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response) 1822 { 1823 int rc; 1824 1825 if (pnso_rc == 0) 1826 switch (response) { 1827 case 0x0001: 1828 rc = 0; 1829 break; 1830 case 0x0004: 1831 case 0x0100: 1832 case 0x0106: 1833 rc = -EOPNOTSUPP; 1834 dev_err(&card->gdev->dev, 1835 "Setting address notification failed\n"); 1836 break; 1837 case 0x0107: 1838 rc = -EAGAIN; 1839 break; 1840 default: 1841 rc = -EIO; 1842 } 1843 else 1844 rc = -EIO; 1845 1846 if (rc) { 1847 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc); 1848 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response); 1849 } 1850 return rc; 1851 } 1852 1853 static void qeth_bridgeport_an_set_cb(void *priv, 1854 enum qdio_brinfo_entry_type type, void *entry) 1855 { 1856 struct qeth_card *card = (struct qeth_card *)priv; 1857 struct qdio_brinfo_entry_l2 *l2entry; 1858 u8 code; 1859 1860 if (type != l2_addr_lnid) { 1861 WARN_ON_ONCE(1); 1862 return; 1863 } 1864 1865 l2entry = (struct qdio_brinfo_entry_l2 *)entry; 1866 code = IPA_ADDR_CHANGE_CODE_MACADDR; 1867 if (l2entry->addr_lnid.lnid) 1868 code |= IPA_ADDR_CHANGE_CODE_VLANID; 1869 qeth_bridge_emit_host_event(card, anev_reg_unreg, code, 1870 (struct net_if_token *)&l2entry->nit, 1871 (struct mac_addr_lnid *)&l2entry->addr_lnid); 1872 } 1873 1874 /** 1875 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification 1876 * @card: qeth_card structure pointer. 1877 * @enable: 0 - disable, non-zero - enable notifications 1878 * 1879 * Returns negative errno-compatible error indication or 0 on success. 1880 * 1881 * On enable, emits a series of address notifications udev events for all 1882 * currently registered hosts. 1883 */ 1884 int qeth_bridgeport_an_set(struct qeth_card *card, int enable) 1885 { 1886 int rc; 1887 u16 response; 1888 struct ccw_device *ddev; 1889 struct subchannel_id schid; 1890 1891 if (!card) 1892 return -EINVAL; 1893 if (!card->options.sbp.supported_funcs) 1894 return -EOPNOTSUPP; 1895 ddev = CARD_DDEV(card); 1896 ccw_device_get_schid(ddev, &schid); 1897 1898 if (enable) { 1899 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); 1900 rc = qdio_pnso_brinfo(schid, 1, &response, 1901 qeth_bridgeport_an_set_cb, card); 1902 } else 1903 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL); 1904 return qeth_anset_makerc(card, rc, response); 1905 } 1906 1907 static bool qeth_bridgeport_is_in_use(struct qeth_card *card) 1908 { 1909 return (card->options.sbp.role || card->options.sbp.reflect_promisc || 1910 card->options.sbp.hostnotification); 1911 } 1912 1913 /* VNIC Characteristics support */ 1914 1915 /* handle VNICC IPA command return codes; convert to error codes */ 1916 static int qeth_l2_vnicc_makerc(struct qeth_card *card, int ipa_rc) 1917 { 1918 int rc; 1919 1920 switch (ipa_rc) { 1921 case IPA_RC_SUCCESS: 1922 return ipa_rc; 1923 case IPA_RC_L2_UNSUPPORTED_CMD: 1924 case IPA_RC_NOTSUPP: 1925 rc = -EOPNOTSUPP; 1926 break; 1927 case IPA_RC_VNICC_OOSEQ: 1928 rc = -EALREADY; 1929 break; 1930 case IPA_RC_VNICC_VNICBP: 1931 rc = -EBUSY; 1932 break; 1933 case IPA_RC_L2_ADDR_TABLE_FULL: 1934 rc = -ENOSPC; 1935 break; 1936 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: 1937 rc = -EACCES; 1938 break; 1939 default: 1940 rc = -EIO; 1941 } 1942 1943 QETH_CARD_TEXT_(card, 2, "err%04x", ipa_rc); 1944 return rc; 1945 } 1946 1947 /* generic VNICC request call back control */ 1948 struct _qeth_l2_vnicc_request_cbctl { 1949 u32 sub_cmd; 1950 struct { 1951 u32 vnic_char; 1952 u32 timeout; 1953 } param; 1954 struct { 1955 union{ 1956 u32 *sup_cmds; 1957 u32 *timeout; 1958 }; 1959 } result; 1960 }; 1961 1962 /* generic VNICC request call back */ 1963 static int qeth_l2_vnicc_request_cb(struct qeth_card *card, 1964 struct qeth_reply *reply, 1965 unsigned long data) 1966 { 1967 struct _qeth_l2_vnicc_request_cbctl *cbctl = 1968 (struct _qeth_l2_vnicc_request_cbctl *) reply->param; 1969 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1970 struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc; 1971 1972 QETH_CARD_TEXT(card, 2, "vniccrcb"); 1973 if (cmd->hdr.return_code) 1974 return 0; 1975 /* return results to caller */ 1976 card->options.vnicc.sup_chars = rep->hdr.sup; 1977 card->options.vnicc.cur_chars = rep->hdr.cur; 1978 1979 if (cbctl->sub_cmd == IPA_VNICC_QUERY_CMDS) 1980 *cbctl->result.sup_cmds = rep->query_cmds.sup_cmds; 1981 1982 if (cbctl->sub_cmd == IPA_VNICC_GET_TIMEOUT) 1983 *cbctl->result.timeout = rep->getset_timeout.timeout; 1984 1985 return 0; 1986 } 1987 1988 /* generic VNICC request */ 1989 static int qeth_l2_vnicc_request(struct qeth_card *card, 1990 struct _qeth_l2_vnicc_request_cbctl *cbctl) 1991 { 1992 struct qeth_ipacmd_vnicc *req; 1993 struct qeth_cmd_buffer *iob; 1994 struct qeth_ipa_cmd *cmd; 1995 int rc; 1996 1997 QETH_CARD_TEXT(card, 2, "vniccreq"); 1998 1999 /* get new buffer for request */ 2000 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_VNICC, 0); 2001 if (!iob) 2002 return -ENOMEM; 2003 2004 /* create header for request */ 2005 cmd = __ipa_cmd(iob); 2006 req = &cmd->data.vnicc; 2007 2008 /* create sub command header for request */ 2009 req->sub_hdr.data_length = sizeof(req->sub_hdr); 2010 req->sub_hdr.sub_command = cbctl->sub_cmd; 2011 2012 /* create sub command specific request fields */ 2013 switch (cbctl->sub_cmd) { 2014 case IPA_VNICC_QUERY_CHARS: 2015 break; 2016 case IPA_VNICC_QUERY_CMDS: 2017 req->sub_hdr.data_length += sizeof(req->query_cmds); 2018 req->query_cmds.vnic_char = cbctl->param.vnic_char; 2019 break; 2020 case IPA_VNICC_ENABLE: 2021 case IPA_VNICC_DISABLE: 2022 req->sub_hdr.data_length += sizeof(req->set_char); 2023 req->set_char.vnic_char = cbctl->param.vnic_char; 2024 break; 2025 case IPA_VNICC_SET_TIMEOUT: 2026 req->getset_timeout.timeout = cbctl->param.timeout; 2027 /* fallthrough */ 2028 case IPA_VNICC_GET_TIMEOUT: 2029 req->sub_hdr.data_length += sizeof(req->getset_timeout); 2030 req->getset_timeout.vnic_char = cbctl->param.vnic_char; 2031 break; 2032 default: 2033 qeth_release_buffer(iob->channel, iob); 2034 return -EOPNOTSUPP; 2035 } 2036 2037 /* send request */ 2038 rc = qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, 2039 (void *) cbctl); 2040 2041 return qeth_l2_vnicc_makerc(card, rc); 2042 } 2043 2044 /* VNICC query VNIC characteristics request */ 2045 static int qeth_l2_vnicc_query_chars(struct qeth_card *card) 2046 { 2047 struct _qeth_l2_vnicc_request_cbctl cbctl; 2048 2049 /* prepare callback control */ 2050 cbctl.sub_cmd = IPA_VNICC_QUERY_CHARS; 2051 2052 QETH_CARD_TEXT(card, 2, "vniccqch"); 2053 return qeth_l2_vnicc_request(card, &cbctl); 2054 } 2055 2056 /* VNICC query sub commands request */ 2057 static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char, 2058 u32 *sup_cmds) 2059 { 2060 struct _qeth_l2_vnicc_request_cbctl cbctl; 2061 2062 /* prepare callback control */ 2063 cbctl.sub_cmd = IPA_VNICC_QUERY_CMDS; 2064 cbctl.param.vnic_char = vnic_char; 2065 cbctl.result.sup_cmds = sup_cmds; 2066 2067 QETH_CARD_TEXT(card, 2, "vniccqcm"); 2068 return qeth_l2_vnicc_request(card, &cbctl); 2069 } 2070 2071 /* VNICC enable/disable characteristic request */ 2072 static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char, 2073 u32 cmd) 2074 { 2075 struct _qeth_l2_vnicc_request_cbctl cbctl; 2076 2077 /* prepare callback control */ 2078 cbctl.sub_cmd = cmd; 2079 cbctl.param.vnic_char = vnic_char; 2080 2081 QETH_CARD_TEXT(card, 2, "vniccedc"); 2082 return qeth_l2_vnicc_request(card, &cbctl); 2083 } 2084 2085 /* VNICC get/set timeout for characteristic request */ 2086 static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc, 2087 u32 cmd, u32 *timeout) 2088 { 2089 struct _qeth_l2_vnicc_request_cbctl cbctl; 2090 2091 /* prepare callback control */ 2092 cbctl.sub_cmd = cmd; 2093 cbctl.param.vnic_char = vnicc; 2094 if (cmd == IPA_VNICC_SET_TIMEOUT) 2095 cbctl.param.timeout = *timeout; 2096 if (cmd == IPA_VNICC_GET_TIMEOUT) 2097 cbctl.result.timeout = timeout; 2098 2099 QETH_CARD_TEXT(card, 2, "vniccgst"); 2100 return qeth_l2_vnicc_request(card, &cbctl); 2101 } 2102 2103 /* set current VNICC flag state; called from sysfs store function */ 2104 int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state) 2105 { 2106 int rc = 0; 2107 u32 cmd; 2108 2109 QETH_CARD_TEXT(card, 2, "vniccsch"); 2110 2111 /* do not change anything if BridgePort is enabled */ 2112 if (qeth_bridgeport_is_in_use(card)) 2113 return -EBUSY; 2114 2115 /* check if characteristic and enable/disable are supported */ 2116 if (!(card->options.vnicc.sup_chars & vnicc) || 2117 !(card->options.vnicc.set_char_sup & vnicc)) 2118 return -EOPNOTSUPP; 2119 2120 /* set enable/disable command and store wanted characteristic */ 2121 if (state) { 2122 cmd = IPA_VNICC_ENABLE; 2123 card->options.vnicc.wanted_chars |= vnicc; 2124 } else { 2125 cmd = IPA_VNICC_DISABLE; 2126 card->options.vnicc.wanted_chars &= ~vnicc; 2127 } 2128 2129 /* do we need to do anything? */ 2130 if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars) 2131 return rc; 2132 2133 /* if card is not ready, simply stop here */ 2134 if (!qeth_card_hw_is_reachable(card)) { 2135 if (state) 2136 card->options.vnicc.cur_chars |= vnicc; 2137 else 2138 card->options.vnicc.cur_chars &= ~vnicc; 2139 return rc; 2140 } 2141 2142 rc = qeth_l2_vnicc_set_char(card, vnicc, cmd); 2143 if (rc) 2144 card->options.vnicc.wanted_chars = 2145 card->options.vnicc.cur_chars; 2146 else { 2147 /* successful online VNICC change; handle special cases */ 2148 if (state && vnicc == QETH_VNICC_RX_BCAST) 2149 card->options.vnicc.rx_bcast_enabled = true; 2150 if (!state && vnicc == QETH_VNICC_LEARNING) 2151 qeth_l2_vnicc_recover_timeout(card, vnicc, 2152 &card->options.vnicc.learning_timeout); 2153 } 2154 2155 return rc; 2156 } 2157 2158 /* get current VNICC flag state; called from sysfs show function */ 2159 int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state) 2160 { 2161 int rc = 0; 2162 2163 QETH_CARD_TEXT(card, 2, "vniccgch"); 2164 2165 /* do not get anything if BridgePort is enabled */ 2166 if (qeth_bridgeport_is_in_use(card)) 2167 return -EBUSY; 2168 2169 /* check if characteristic is supported */ 2170 if (!(card->options.vnicc.sup_chars & vnicc)) 2171 return -EOPNOTSUPP; 2172 2173 /* if card is ready, query current VNICC state */ 2174 if (qeth_card_hw_is_reachable(card)) 2175 rc = qeth_l2_vnicc_query_chars(card); 2176 2177 *state = (card->options.vnicc.cur_chars & vnicc) ? true : false; 2178 return rc; 2179 } 2180 2181 /* set VNICC timeout; called from sysfs store function. Currently, only learning 2182 * supports timeout 2183 */ 2184 int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout) 2185 { 2186 int rc = 0; 2187 2188 QETH_CARD_TEXT(card, 2, "vniccsto"); 2189 2190 /* do not change anything if BridgePort is enabled */ 2191 if (qeth_bridgeport_is_in_use(card)) 2192 return -EBUSY; 2193 2194 /* check if characteristic and set_timeout are supported */ 2195 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || 2196 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) 2197 return -EOPNOTSUPP; 2198 2199 /* do we need to do anything? */ 2200 if (card->options.vnicc.learning_timeout == timeout) 2201 return rc; 2202 2203 /* if card is not ready, simply store the value internally and return */ 2204 if (!qeth_card_hw_is_reachable(card)) { 2205 card->options.vnicc.learning_timeout = timeout; 2206 return rc; 2207 } 2208 2209 /* send timeout value to card; if successful, store value internally */ 2210 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, 2211 IPA_VNICC_SET_TIMEOUT, &timeout); 2212 if (!rc) 2213 card->options.vnicc.learning_timeout = timeout; 2214 2215 return rc; 2216 } 2217 2218 /* get current VNICC timeout; called from sysfs show function. Currently, only 2219 * learning supports timeout 2220 */ 2221 int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout) 2222 { 2223 int rc = 0; 2224 2225 QETH_CARD_TEXT(card, 2, "vniccgto"); 2226 2227 /* do not get anything if BridgePort is enabled */ 2228 if (qeth_bridgeport_is_in_use(card)) 2229 return -EBUSY; 2230 2231 /* check if characteristic and get_timeout are supported */ 2232 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || 2233 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) 2234 return -EOPNOTSUPP; 2235 /* if card is ready, get timeout. Otherwise, just return stored value */ 2236 *timeout = card->options.vnicc.learning_timeout; 2237 if (qeth_card_hw_is_reachable(card)) 2238 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, 2239 IPA_VNICC_GET_TIMEOUT, 2240 timeout); 2241 2242 return rc; 2243 } 2244 2245 /* check if VNICC is currently enabled */ 2246 bool qeth_l2_vnicc_is_in_use(struct qeth_card *card) 2247 { 2248 /* if everything is turned off, VNICC is not active */ 2249 if (!card->options.vnicc.cur_chars) 2250 return false; 2251 /* default values are only OK if rx_bcast was not enabled by user 2252 * or the card is offline. 2253 */ 2254 if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) { 2255 if (!card->options.vnicc.rx_bcast_enabled || 2256 !qeth_card_hw_is_reachable(card)) 2257 return false; 2258 } 2259 return true; 2260 } 2261 2262 /* recover user timeout setting */ 2263 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, 2264 u32 *timeout) 2265 { 2266 if (card->options.vnicc.sup_chars & vnicc && 2267 card->options.vnicc.getset_timeout_sup & vnicc && 2268 !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT, 2269 timeout)) 2270 return false; 2271 *timeout = QETH_VNICC_DEFAULT_TIMEOUT; 2272 return true; 2273 } 2274 2275 /* recover user characteristic setting */ 2276 static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc, 2277 bool enable) 2278 { 2279 u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE; 2280 2281 if (card->options.vnicc.sup_chars & vnicc && 2282 card->options.vnicc.set_char_sup & vnicc && 2283 !qeth_l2_vnicc_set_char(card, vnicc, cmd)) 2284 return false; 2285 card->options.vnicc.wanted_chars &= ~vnicc; 2286 card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc; 2287 return true; 2288 } 2289 2290 /* (re-)initialize VNICC */ 2291 static void qeth_l2_vnicc_init(struct qeth_card *card) 2292 { 2293 u32 *timeout = &card->options.vnicc.learning_timeout; 2294 unsigned int chars_len, i; 2295 unsigned long chars_tmp; 2296 u32 sup_cmds, vnicc; 2297 bool enable, error; 2298 2299 QETH_CARD_TEXT(card, 2, "vniccini"); 2300 /* reset rx_bcast */ 2301 card->options.vnicc.rx_bcast_enabled = 0; 2302 /* initial query and storage of VNIC characteristics */ 2303 if (qeth_l2_vnicc_query_chars(card)) { 2304 if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT || 2305 *timeout != QETH_VNICC_DEFAULT_TIMEOUT) 2306 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); 2307 /* fail quietly if user didn't change the default config */ 2308 card->options.vnicc.sup_chars = 0; 2309 card->options.vnicc.cur_chars = 0; 2310 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; 2311 return; 2312 } 2313 /* get supported commands for each supported characteristic */ 2314 chars_tmp = card->options.vnicc.sup_chars; 2315 chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE; 2316 for_each_set_bit(i, &chars_tmp, chars_len) { 2317 vnicc = BIT(i); 2318 qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds); 2319 if (!(sup_cmds & IPA_VNICC_SET_TIMEOUT) || 2320 !(sup_cmds & IPA_VNICC_GET_TIMEOUT)) 2321 card->options.vnicc.getset_timeout_sup &= ~vnicc; 2322 if (!(sup_cmds & IPA_VNICC_ENABLE) || 2323 !(sup_cmds & IPA_VNICC_DISABLE)) 2324 card->options.vnicc.set_char_sup &= ~vnicc; 2325 } 2326 /* enforce assumed default values and recover settings, if changed */ 2327 error = qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING, 2328 timeout); 2329 chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT; 2330 chars_tmp |= QETH_VNICC_BRIDGE_INVISIBLE; 2331 chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE; 2332 for_each_set_bit(i, &chars_tmp, chars_len) { 2333 vnicc = BIT(i); 2334 enable = card->options.vnicc.wanted_chars & vnicc; 2335 error |= qeth_l2_vnicc_recover_char(card, vnicc, enable); 2336 } 2337 if (error) 2338 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); 2339 } 2340 2341 /* configure default values of VNIC characteristics */ 2342 static void qeth_l2_vnicc_set_defaults(struct qeth_card *card) 2343 { 2344 /* characteristics values */ 2345 card->options.vnicc.sup_chars = QETH_VNICC_ALL; 2346 card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT; 2347 card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT; 2348 /* supported commands */ 2349 card->options.vnicc.set_char_sup = QETH_VNICC_ALL; 2350 card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING; 2351 /* settings wanted by users */ 2352 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; 2353 } 2354 2355 module_init(qeth_l2_init); 2356 module_exit(qeth_l2_exit); 2357 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 2358 MODULE_DESCRIPTION("qeth layer 2 discipline"); 2359 MODULE_LICENSE("GPL"); 2360