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 struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) 40 { 41 struct qeth_card *card; 42 struct net_device *ndev; 43 __u16 temp_dev_no; 44 unsigned long flags; 45 struct ccw_dev_id read_devid; 46 47 ndev = NULL; 48 memcpy(&temp_dev_no, read_dev_no, 2); 49 read_lock_irqsave(&qeth_core_card_list.rwlock, flags); 50 list_for_each_entry(card, &qeth_core_card_list.list, list) { 51 ccw_device_get_id(CARD_RDEV(card), &read_devid); 52 if (read_devid.devno == temp_dev_no) { 53 ndev = card->dev; 54 break; 55 } 56 } 57 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); 58 return ndev; 59 } 60 61 static int qeth_setdelmac_makerc(struct qeth_card *card, int retcode) 62 { 63 int rc; 64 65 if (retcode) 66 QETH_CARD_TEXT_(card, 2, "err%04x", retcode); 67 switch (retcode) { 68 case IPA_RC_SUCCESS: 69 rc = 0; 70 break; 71 case IPA_RC_L2_UNSUPPORTED_CMD: 72 rc = -EOPNOTSUPP; 73 break; 74 case IPA_RC_L2_ADDR_TABLE_FULL: 75 rc = -ENOSPC; 76 break; 77 case IPA_RC_L2_DUP_MAC: 78 case IPA_RC_L2_DUP_LAYER3_MAC: 79 rc = -EEXIST; 80 break; 81 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: 82 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: 83 rc = -EPERM; 84 break; 85 case IPA_RC_L2_MAC_NOT_FOUND: 86 rc = -ENOENT; 87 break; 88 case -ENOMEM: 89 rc = -ENOMEM; 90 break; 91 default: 92 rc = -EIO; 93 break; 94 } 95 return rc; 96 } 97 98 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, 99 enum qeth_ipa_cmds ipacmd) 100 { 101 struct qeth_ipa_cmd *cmd; 102 struct qeth_cmd_buffer *iob; 103 104 QETH_CARD_TEXT(card, 2, "L2sdmac"); 105 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 106 if (!iob) 107 return -ENOMEM; 108 cmd = __ipa_cmd(iob); 109 cmd->data.setdelmac.mac_length = ETH_ALEN; 110 ether_addr_copy(cmd->data.setdelmac.mac, mac); 111 return qeth_setdelmac_makerc(card, qeth_send_ipa_cmd(card, iob, 112 NULL, NULL)); 113 } 114 115 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) 116 { 117 int rc; 118 119 QETH_CARD_TEXT(card, 2, "L2Setmac"); 120 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC); 121 if (rc == 0) { 122 dev_info(&card->gdev->dev, 123 "MAC address %pM successfully registered on device %s\n", 124 mac, card->dev->name); 125 } else { 126 switch (rc) { 127 case -EEXIST: 128 dev_warn(&card->gdev->dev, 129 "MAC address %pM already exists\n", mac); 130 break; 131 case -EPERM: 132 dev_warn(&card->gdev->dev, 133 "MAC address %pM is not authorized\n", mac); 134 break; 135 } 136 } 137 return rc; 138 } 139 140 static int qeth_l2_write_mac(struct qeth_card *card, u8 *mac) 141 { 142 enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ? 143 IPA_CMD_SETGMAC : IPA_CMD_SETVMAC; 144 int rc; 145 146 QETH_CARD_TEXT(card, 2, "L2Wmac"); 147 rc = qeth_l2_send_setdelmac(card, mac, cmd); 148 if (rc == -EEXIST) 149 QETH_DBF_MESSAGE(2, "MAC %pM already registered on %s\n", 150 mac, QETH_CARD_IFNAME(card)); 151 else if (rc) 152 QETH_DBF_MESSAGE(2, "Failed to register MAC %pM on %s: %d\n", 153 mac, QETH_CARD_IFNAME(card), rc); 154 return rc; 155 } 156 157 static int qeth_l2_remove_mac(struct qeth_card *card, u8 *mac) 158 { 159 enum qeth_ipa_cmds cmd = is_multicast_ether_addr(mac) ? 160 IPA_CMD_DELGMAC : IPA_CMD_DELVMAC; 161 int rc; 162 163 QETH_CARD_TEXT(card, 2, "L2Rmac"); 164 rc = qeth_l2_send_setdelmac(card, mac, cmd); 165 if (rc) 166 QETH_DBF_MESSAGE(2, "Failed to delete MAC %pM on %s: %d\n", 167 mac, QETH_CARD_IFNAME(card), rc); 168 return rc; 169 } 170 171 static void qeth_l2_del_all_macs(struct qeth_card *card) 172 { 173 struct qeth_mac *mac; 174 struct hlist_node *tmp; 175 int i; 176 177 spin_lock_bh(&card->mclock); 178 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) { 179 hash_del(&mac->hnode); 180 kfree(mac); 181 } 182 spin_unlock_bh(&card->mclock); 183 } 184 185 static int qeth_l2_get_cast_type(struct qeth_card *card, struct sk_buff *skb) 186 { 187 if (card->info.type == QETH_CARD_TYPE_OSN) 188 return RTN_UNICAST; 189 if (is_broadcast_ether_addr(skb->data)) 190 return RTN_BROADCAST; 191 if (is_multicast_ether_addr(skb->data)) 192 return RTN_MULTICAST; 193 return RTN_UNICAST; 194 } 195 196 static void qeth_l2_fill_header(struct qeth_hdr *hdr, struct sk_buff *skb, 197 int cast_type, unsigned int data_len) 198 { 199 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); 200 201 memset(hdr, 0, sizeof(struct qeth_hdr)); 202 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; 203 hdr->hdr.l2.pkt_length = data_len; 204 205 /* set byte byte 3 to casting flags */ 206 if (cast_type == RTN_MULTICAST) 207 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; 208 else if (cast_type == RTN_BROADCAST) 209 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; 210 else 211 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; 212 213 /* VSWITCH relies on the VLAN 214 * information to be present in 215 * the QDIO header */ 216 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { 217 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; 218 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); 219 } 220 } 221 222 static int qeth_setdelvlan_makerc(struct qeth_card *card, int retcode) 223 { 224 if (retcode) 225 QETH_CARD_TEXT_(card, 2, "err%04x", retcode); 226 227 switch (retcode) { 228 case IPA_RC_SUCCESS: 229 return 0; 230 case IPA_RC_L2_INVALID_VLAN_ID: 231 return -EINVAL; 232 case IPA_RC_L2_DUP_VLAN_ID: 233 return -EEXIST; 234 case IPA_RC_L2_VLAN_ID_NOT_FOUND: 235 return -ENOENT; 236 case IPA_RC_L2_VLAN_ID_NOT_ALLOWED: 237 return -EPERM; 238 case -ENOMEM: 239 return -ENOMEM; 240 default: 241 return -EIO; 242 } 243 } 244 245 static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, 246 struct qeth_reply *reply, 247 unsigned long data) 248 { 249 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 250 251 QETH_CARD_TEXT(card, 2, "L2sdvcb"); 252 if (cmd->hdr.return_code) { 253 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x.\n", 254 cmd->data.setdelvlan.vlan_id, 255 QETH_CARD_IFNAME(card), cmd->hdr.return_code); 256 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); 257 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); 258 } 259 return 0; 260 } 261 262 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, 263 enum qeth_ipa_cmds ipacmd) 264 { 265 struct qeth_ipa_cmd *cmd; 266 struct qeth_cmd_buffer *iob; 267 268 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); 269 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 270 if (!iob) 271 return -ENOMEM; 272 cmd = __ipa_cmd(iob); 273 cmd->data.setdelvlan.vlan_id = i; 274 return qeth_setdelvlan_makerc(card, qeth_send_ipa_cmd(card, iob, 275 qeth_l2_send_setdelvlan_cb, NULL)); 276 } 277 278 static void qeth_l2_process_vlans(struct qeth_card *card) 279 { 280 struct qeth_vlan_vid *id; 281 282 QETH_CARD_TEXT(card, 3, "L2prcvln"); 283 mutex_lock(&card->vid_list_mutex); 284 list_for_each_entry(id, &card->vid_list, list) { 285 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); 286 } 287 mutex_unlock(&card->vid_list_mutex); 288 } 289 290 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, 291 __be16 proto, u16 vid) 292 { 293 struct qeth_card *card = dev->ml_priv; 294 struct qeth_vlan_vid *id; 295 int rc; 296 297 QETH_CARD_TEXT_(card, 4, "aid:%d", vid); 298 if (!vid) 299 return 0; 300 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 301 QETH_CARD_TEXT(card, 3, "aidREC"); 302 return 0; 303 } 304 id = kmalloc(sizeof(*id), GFP_KERNEL); 305 if (id) { 306 id->vid = vid; 307 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); 308 if (rc) { 309 kfree(id); 310 return rc; 311 } 312 mutex_lock(&card->vid_list_mutex); 313 list_add_tail(&id->list, &card->vid_list); 314 mutex_unlock(&card->vid_list_mutex); 315 } else { 316 return -ENOMEM; 317 } 318 return 0; 319 } 320 321 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, 322 __be16 proto, u16 vid) 323 { 324 struct qeth_vlan_vid *id, *tmpid = NULL; 325 struct qeth_card *card = dev->ml_priv; 326 int rc = 0; 327 328 QETH_CARD_TEXT_(card, 4, "kid:%d", vid); 329 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 330 QETH_CARD_TEXT(card, 3, "kidREC"); 331 return 0; 332 } 333 mutex_lock(&card->vid_list_mutex); 334 list_for_each_entry(id, &card->vid_list, list) { 335 if (id->vid == vid) { 336 list_del(&id->list); 337 tmpid = id; 338 break; 339 } 340 } 341 mutex_unlock(&card->vid_list_mutex); 342 if (tmpid) { 343 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); 344 kfree(tmpid); 345 } 346 return rc; 347 } 348 349 static void qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) 350 { 351 QETH_DBF_TEXT(SETUP , 2, "stopcard"); 352 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 353 354 qeth_set_allowed_threads(card, 0, 1); 355 if (card->read.state == CH_STATE_UP && 356 card->write.state == CH_STATE_UP && 357 (card->state == CARD_STATE_UP)) { 358 if (recovery_mode && 359 card->info.type != QETH_CARD_TYPE_OSN) { 360 qeth_l2_stop(card->dev); 361 } else { 362 rtnl_lock(); 363 dev_close(card->dev); 364 rtnl_unlock(); 365 } 366 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 367 card->state = CARD_STATE_SOFTSETUP; 368 } 369 if (card->state == CARD_STATE_SOFTSETUP) { 370 qeth_l2_del_all_macs(card); 371 qeth_clear_ipacmd_list(card); 372 card->state = CARD_STATE_HARDSETUP; 373 } 374 if (card->state == CARD_STATE_HARDSETUP) { 375 qeth_qdio_clear_card(card, 0); 376 qeth_clear_qdio_buffers(card); 377 qeth_clear_working_pool_list(card); 378 card->state = CARD_STATE_DOWN; 379 } 380 if (card->state == CARD_STATE_DOWN) { 381 qeth_clear_cmd_buffers(&card->read); 382 qeth_clear_cmd_buffers(&card->write); 383 } 384 } 385 386 static int qeth_l2_process_inbound_buffer(struct qeth_card *card, 387 int budget, int *done) 388 { 389 int work_done = 0; 390 struct sk_buff *skb; 391 struct qeth_hdr *hdr; 392 unsigned int len; 393 394 *done = 0; 395 WARN_ON_ONCE(!budget); 396 while (budget) { 397 skb = qeth_core_get_next_skb(card, 398 &card->qdio.in_q->bufs[card->rx.b_index], 399 &card->rx.b_element, &card->rx.e_offset, &hdr); 400 if (!skb) { 401 *done = 1; 402 break; 403 } 404 switch (hdr->hdr.l2.id) { 405 case QETH_HEADER_TYPE_LAYER2: 406 skb->protocol = eth_type_trans(skb, skb->dev); 407 qeth_rx_csum(card, skb, hdr->hdr.l2.flags[1]); 408 if (skb->protocol == htons(ETH_P_802_2)) 409 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; 410 len = skb->len; 411 napi_gro_receive(&card->napi, skb); 412 break; 413 case QETH_HEADER_TYPE_OSN: 414 if (card->info.type == QETH_CARD_TYPE_OSN) { 415 skb_push(skb, sizeof(struct qeth_hdr)); 416 skb_copy_to_linear_data(skb, hdr, 417 sizeof(struct qeth_hdr)); 418 len = skb->len; 419 card->osn_info.data_cb(skb); 420 break; 421 } 422 /* else unknown */ 423 default: 424 dev_kfree_skb_any(skb); 425 QETH_CARD_TEXT(card, 3, "inbunkno"); 426 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); 427 continue; 428 } 429 work_done++; 430 budget--; 431 card->stats.rx_packets++; 432 card->stats.rx_bytes += len; 433 } 434 return work_done; 435 } 436 437 static int qeth_l2_request_initial_mac(struct qeth_card *card) 438 { 439 int rc = 0; 440 441 QETH_DBF_TEXT(SETUP, 2, "l2reqmac"); 442 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); 443 444 if (MACHINE_IS_VM) { 445 rc = qeth_vm_request_mac(card); 446 if (!rc) 447 goto out; 448 QETH_DBF_MESSAGE(2, "z/VM MAC Service failed on device %s: x%x\n", 449 CARD_BUS_ID(card), rc); 450 QETH_DBF_TEXT_(SETUP, 2, "err%04x", rc); 451 /* fall back to alternative mechanism: */ 452 } 453 454 if (card->info.type == QETH_CARD_TYPE_IQD || 455 card->info.type == QETH_CARD_TYPE_OSM || 456 card->info.type == QETH_CARD_TYPE_OSX || 457 card->info.guestlan) { 458 rc = qeth_setadpparms_change_macaddr(card); 459 if (!rc) 460 goto out; 461 QETH_DBF_MESSAGE(2, "READ_MAC Assist failed on device %s: x%x\n", 462 CARD_BUS_ID(card), rc); 463 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc); 464 /* fall back once more: */ 465 } 466 467 /* some devices don't support a custom MAC address: */ 468 if (card->info.type == QETH_CARD_TYPE_OSM || 469 card->info.type == QETH_CARD_TYPE_OSX) 470 return (rc) ? rc : -EADDRNOTAVAIL; 471 eth_hw_addr_random(card->dev); 472 473 out: 474 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, card->dev->addr_len); 475 return 0; 476 } 477 478 static int qeth_l2_set_mac_address(struct net_device *dev, void *p) 479 { 480 struct sockaddr *addr = p; 481 struct qeth_card *card = dev->ml_priv; 482 u8 old_addr[ETH_ALEN]; 483 int rc = 0; 484 485 QETH_CARD_TEXT(card, 3, "setmac"); 486 487 if (card->info.type == QETH_CARD_TYPE_OSN || 488 card->info.type == QETH_CARD_TYPE_OSM || 489 card->info.type == QETH_CARD_TYPE_OSX) { 490 QETH_CARD_TEXT(card, 3, "setmcTYP"); 491 return -EOPNOTSUPP; 492 } 493 QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN); 494 if (!is_valid_ether_addr(addr->sa_data)) 495 return -EADDRNOTAVAIL; 496 497 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 498 QETH_CARD_TEXT(card, 3, "setmcREC"); 499 return -ERESTARTSYS; 500 } 501 502 /* avoid racing against concurrent state change: */ 503 if (!mutex_trylock(&card->conf_mutex)) 504 return -EAGAIN; 505 506 if (!qeth_card_hw_is_reachable(card)) { 507 ether_addr_copy(dev->dev_addr, addr->sa_data); 508 goto out_unlock; 509 } 510 511 /* don't register the same address twice */ 512 if (ether_addr_equal_64bits(dev->dev_addr, addr->sa_data) && 513 (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) 514 goto out_unlock; 515 516 /* add the new address, switch over, drop the old */ 517 rc = qeth_l2_send_setmac(card, addr->sa_data); 518 if (rc) 519 goto out_unlock; 520 ether_addr_copy(old_addr, dev->dev_addr); 521 ether_addr_copy(dev->dev_addr, addr->sa_data); 522 523 if (card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED) 524 qeth_l2_remove_mac(card, old_addr); 525 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; 526 527 out_unlock: 528 mutex_unlock(&card->conf_mutex); 529 return rc; 530 } 531 532 static void qeth_promisc_to_bridge(struct qeth_card *card) 533 { 534 struct net_device *dev = card->dev; 535 enum qeth_ipa_promisc_modes promisc_mode; 536 int role; 537 int rc; 538 539 QETH_CARD_TEXT(card, 3, "pmisc2br"); 540 541 if (!card->options.sbp.reflect_promisc) 542 return; 543 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON 544 : SET_PROMISC_MODE_OFF; 545 if (promisc_mode == card->info.promisc_mode) 546 return; 547 548 if (promisc_mode == SET_PROMISC_MODE_ON) { 549 if (card->options.sbp.reflect_promisc_primary) 550 role = QETH_SBP_ROLE_PRIMARY; 551 else 552 role = QETH_SBP_ROLE_SECONDARY; 553 } else 554 role = QETH_SBP_ROLE_NONE; 555 556 rc = qeth_bridgeport_setrole(card, role); 557 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x", 558 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc); 559 if (!rc) { 560 card->options.sbp.role = role; 561 card->info.promisc_mode = promisc_mode; 562 } 563 564 } 565 /* New MAC address is added to the hash table and marked to be written on card 566 * only if there is not in the hash table storage already 567 * 568 */ 569 static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha) 570 { 571 u32 mac_hash = get_unaligned((u32 *)(&ha->addr[2])); 572 struct qeth_mac *mac; 573 574 hash_for_each_possible(card->mac_htable, mac, hnode, mac_hash) { 575 if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) { 576 mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING; 577 return; 578 } 579 } 580 581 mac = kzalloc(sizeof(struct qeth_mac), GFP_ATOMIC); 582 if (!mac) 583 return; 584 585 ether_addr_copy(mac->mac_addr, ha->addr); 586 mac->disp_flag = QETH_DISP_ADDR_ADD; 587 588 hash_add(card->mac_htable, &mac->hnode, mac_hash); 589 } 590 591 static void qeth_l2_set_rx_mode(struct net_device *dev) 592 { 593 struct qeth_card *card = dev->ml_priv; 594 struct netdev_hw_addr *ha; 595 struct qeth_mac *mac; 596 struct hlist_node *tmp; 597 int i; 598 int rc; 599 600 if (card->info.type == QETH_CARD_TYPE_OSN) 601 return; 602 603 QETH_CARD_TEXT(card, 3, "setmulti"); 604 if (qeth_threads_running(card, QETH_RECOVER_THREAD) && 605 (card->state != CARD_STATE_UP)) 606 return; 607 608 spin_lock_bh(&card->mclock); 609 610 netdev_for_each_mc_addr(ha, dev) 611 qeth_l2_add_mac(card, ha); 612 netdev_for_each_uc_addr(ha, dev) 613 qeth_l2_add_mac(card, ha); 614 615 hash_for_each_safe(card->mac_htable, i, tmp, mac, hnode) { 616 switch (mac->disp_flag) { 617 case QETH_DISP_ADDR_DELETE: 618 qeth_l2_remove_mac(card, mac->mac_addr); 619 hash_del(&mac->hnode); 620 kfree(mac); 621 break; 622 case QETH_DISP_ADDR_ADD: 623 rc = qeth_l2_write_mac(card, mac->mac_addr); 624 if (rc) { 625 hash_del(&mac->hnode); 626 kfree(mac); 627 break; 628 } 629 /* fall through */ 630 default: 631 /* for next call to set_rx_mode(): */ 632 mac->disp_flag = QETH_DISP_ADDR_DELETE; 633 } 634 } 635 636 spin_unlock_bh(&card->mclock); 637 638 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) 639 qeth_setadp_promisc_mode(card); 640 else 641 qeth_promisc_to_bridge(card); 642 } 643 644 static int qeth_l2_xmit(struct qeth_card *card, struct sk_buff *skb, 645 struct qeth_qdio_out_q *queue, int cast_type, int ipv) 646 { 647 const unsigned int proto_len = IS_IQD(card) ? ETH_HLEN : 0; 648 const unsigned int hw_hdr_len = sizeof(struct qeth_hdr); 649 unsigned int frame_len = skb->len; 650 unsigned int data_offset = 0; 651 struct qeth_hdr *hdr = NULL; 652 unsigned int hd_len = 0; 653 unsigned int elements; 654 int push_len, rc; 655 bool is_sg; 656 657 rc = skb_cow_head(skb, hw_hdr_len); 658 if (rc) 659 return rc; 660 661 push_len = qeth_add_hw_header(card, skb, &hdr, hw_hdr_len, proto_len, 662 &elements); 663 if (push_len < 0) 664 return push_len; 665 if (!push_len) { 666 /* HW header needs its own buffer element. */ 667 hd_len = hw_hdr_len + proto_len; 668 data_offset = proto_len; 669 } 670 qeth_l2_fill_header(hdr, skb, cast_type, frame_len); 671 if (skb->ip_summed == CHECKSUM_PARTIAL) { 672 qeth_tx_csum(skb, &hdr->hdr.l2.flags[1], ipv); 673 if (card->options.performance_stats) 674 card->perf_stats.tx_csum++; 675 } 676 677 is_sg = skb_is_nonlinear(skb); 678 if (IS_IQD(card)) { 679 rc = qeth_do_send_packet_fast(queue, skb, hdr, data_offset, 680 hd_len); 681 } else { 682 /* TODO: drop skb_orphan() once TX completion is fast enough */ 683 skb_orphan(skb); 684 rc = qeth_do_send_packet(card, queue, skb, hdr, data_offset, 685 hd_len, elements); 686 } 687 688 if (!rc) { 689 if (card->options.performance_stats) { 690 card->perf_stats.buf_elements_sent += elements; 691 if (is_sg) 692 card->perf_stats.sg_skbs_sent++; 693 } 694 } else { 695 if (!push_len) 696 kmem_cache_free(qeth_core_header_cache, hdr); 697 if (rc == -EBUSY) 698 /* roll back to ETH header */ 699 skb_pull(skb, push_len); 700 } 701 return rc; 702 } 703 704 static int qeth_l2_xmit_osn(struct qeth_card *card, struct sk_buff *skb, 705 struct qeth_qdio_out_q *queue) 706 { 707 unsigned int elements; 708 struct qeth_hdr *hdr; 709 710 if (skb->protocol == htons(ETH_P_IPV6)) 711 return -EPROTONOSUPPORT; 712 713 hdr = (struct qeth_hdr *)skb->data; 714 elements = qeth_get_elements_no(card, skb, 0, 0); 715 if (!elements) 716 return -E2BIG; 717 if (qeth_hdr_chk_and_bounce(skb, &hdr, sizeof(*hdr))) 718 return -EINVAL; 719 return qeth_do_send_packet(card, queue, skb, hdr, 0, 0, elements); 720 } 721 722 static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb, 723 struct net_device *dev) 724 { 725 struct qeth_card *card = dev->ml_priv; 726 int cast_type = qeth_l2_get_cast_type(card, skb); 727 int ipv = qeth_get_ip_version(skb); 728 struct qeth_qdio_out_q *queue; 729 int tx_bytes = skb->len; 730 int rc; 731 732 if ((card->state != CARD_STATE_UP) || !card->lan_online) { 733 card->stats.tx_carrier_errors++; 734 goto tx_drop; 735 } 736 737 queue = qeth_get_tx_queue(card, skb, ipv, cast_type); 738 739 if (card->options.performance_stats) { 740 card->perf_stats.outbound_cnt++; 741 card->perf_stats.outbound_start_time = qeth_get_micros(); 742 } 743 netif_stop_queue(dev); 744 745 if (IS_OSN(card)) 746 rc = qeth_l2_xmit_osn(card, skb, queue); 747 else 748 rc = qeth_l2_xmit(card, skb, queue, cast_type, ipv); 749 750 if (!rc) { 751 card->stats.tx_packets++; 752 card->stats.tx_bytes += tx_bytes; 753 if (card->options.performance_stats) 754 card->perf_stats.outbound_time += qeth_get_micros() - 755 card->perf_stats.outbound_start_time; 756 netif_wake_queue(dev); 757 return NETDEV_TX_OK; 758 } else if (rc == -EBUSY) { 759 return NETDEV_TX_BUSY; 760 } /* else fall through */ 761 762 tx_drop: 763 card->stats.tx_dropped++; 764 card->stats.tx_errors++; 765 dev_kfree_skb_any(skb); 766 netif_wake_queue(dev); 767 return NETDEV_TX_OK; 768 } 769 770 static int __qeth_l2_open(struct net_device *dev) 771 { 772 struct qeth_card *card = dev->ml_priv; 773 int rc = 0; 774 775 QETH_CARD_TEXT(card, 4, "qethopen"); 776 if (card->state == CARD_STATE_UP) 777 return rc; 778 if (card->state != CARD_STATE_SOFTSETUP) 779 return -ENODEV; 780 781 if ((card->info.type != QETH_CARD_TYPE_OSN) && 782 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { 783 QETH_CARD_TEXT(card, 4, "nomacadr"); 784 return -EPERM; 785 } 786 card->data.state = CH_STATE_UP; 787 card->state = CARD_STATE_UP; 788 netif_start_queue(dev); 789 790 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { 791 napi_enable(&card->napi); 792 napi_schedule(&card->napi); 793 } else 794 rc = -EIO; 795 return rc; 796 } 797 798 static int qeth_l2_open(struct net_device *dev) 799 { 800 struct qeth_card *card = dev->ml_priv; 801 802 QETH_CARD_TEXT(card, 5, "qethope_"); 803 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 804 QETH_CARD_TEXT(card, 3, "openREC"); 805 return -ERESTARTSYS; 806 } 807 return __qeth_l2_open(dev); 808 } 809 810 static int qeth_l2_stop(struct net_device *dev) 811 { 812 struct qeth_card *card = dev->ml_priv; 813 814 QETH_CARD_TEXT(card, 4, "qethstop"); 815 netif_tx_disable(dev); 816 if (card->state == CARD_STATE_UP) { 817 card->state = CARD_STATE_SOFTSETUP; 818 napi_disable(&card->napi); 819 } 820 return 0; 821 } 822 823 static const struct device_type qeth_l2_devtype = { 824 .name = "qeth_layer2", 825 .groups = qeth_l2_attr_groups, 826 }; 827 828 static int qeth_l2_probe_device(struct ccwgroup_device *gdev) 829 { 830 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 831 int rc; 832 833 if (gdev->dev.type == &qeth_generic_devtype) { 834 rc = qeth_l2_create_device_attributes(&gdev->dev); 835 if (rc) 836 return rc; 837 } 838 INIT_LIST_HEAD(&card->vid_list); 839 hash_init(card->mac_htable); 840 card->options.layer2 = 1; 841 card->info.hwtrap = 0; 842 qeth_l2_vnicc_set_defaults(card); 843 return 0; 844 } 845 846 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) 847 { 848 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 849 850 if (cgdev->dev.type == &qeth_generic_devtype) 851 qeth_l2_remove_device_attributes(&cgdev->dev); 852 qeth_set_allowed_threads(card, 0, 1); 853 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 854 855 if (cgdev->state == CCWGROUP_ONLINE) 856 qeth_l2_set_offline(cgdev); 857 unregister_netdev(card->dev); 858 } 859 860 static const struct ethtool_ops qeth_l2_ethtool_ops = { 861 .get_link = ethtool_op_get_link, 862 .get_strings = qeth_core_get_strings, 863 .get_ethtool_stats = qeth_core_get_ethtool_stats, 864 .get_sset_count = qeth_core_get_sset_count, 865 .get_drvinfo = qeth_core_get_drvinfo, 866 .get_link_ksettings = qeth_core_ethtool_get_link_ksettings, 867 }; 868 869 static const struct ethtool_ops qeth_l2_osn_ops = { 870 .get_strings = qeth_core_get_strings, 871 .get_ethtool_stats = qeth_core_get_ethtool_stats, 872 .get_sset_count = qeth_core_get_sset_count, 873 .get_drvinfo = qeth_core_get_drvinfo, 874 }; 875 876 static const struct net_device_ops qeth_l2_netdev_ops = { 877 .ndo_open = qeth_l2_open, 878 .ndo_stop = qeth_l2_stop, 879 .ndo_get_stats = qeth_get_stats, 880 .ndo_start_xmit = qeth_l2_hard_start_xmit, 881 .ndo_features_check = qeth_features_check, 882 .ndo_validate_addr = eth_validate_addr, 883 .ndo_set_rx_mode = qeth_l2_set_rx_mode, 884 .ndo_do_ioctl = qeth_do_ioctl, 885 .ndo_set_mac_address = qeth_l2_set_mac_address, 886 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, 887 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, 888 .ndo_tx_timeout = qeth_tx_timeout, 889 .ndo_fix_features = qeth_fix_features, 890 .ndo_set_features = qeth_set_features 891 }; 892 893 static int qeth_l2_setup_netdev(struct qeth_card *card) 894 { 895 int rc; 896 897 if (card->dev->netdev_ops) 898 return 0; 899 900 card->dev->priv_flags |= IFF_UNICAST_FLT; 901 card->dev->netdev_ops = &qeth_l2_netdev_ops; 902 if (card->info.type == QETH_CARD_TYPE_OSN) { 903 card->dev->ethtool_ops = &qeth_l2_osn_ops; 904 card->dev->flags |= IFF_NOARP; 905 } else { 906 card->dev->ethtool_ops = &qeth_l2_ethtool_ops; 907 card->dev->needed_headroom = sizeof(struct qeth_hdr); 908 } 909 910 if (card->info.type == QETH_CARD_TYPE_OSM) 911 card->dev->features |= NETIF_F_VLAN_CHALLENGED; 912 else 913 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; 914 915 if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) { 916 card->dev->features |= NETIF_F_SG; 917 /* OSA 3S and earlier has no RX/TX support */ 918 if (qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) { 919 card->dev->hw_features |= NETIF_F_IP_CSUM; 920 card->dev->vlan_features |= NETIF_F_IP_CSUM; 921 } 922 } 923 if (qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) { 924 card->dev->hw_features |= NETIF_F_IPV6_CSUM; 925 card->dev->vlan_features |= NETIF_F_IPV6_CSUM; 926 } 927 if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM) || 928 qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) { 929 card->dev->hw_features |= NETIF_F_RXCSUM; 930 card->dev->vlan_features |= NETIF_F_RXCSUM; 931 } 932 933 qeth_l2_request_initial_mac(card); 934 netif_napi_add(card->dev, &card->napi, qeth_poll, QETH_NAPI_WEIGHT); 935 rc = register_netdev(card->dev); 936 if (rc) 937 card->dev->netdev_ops = NULL; 938 return rc; 939 } 940 941 static int qeth_l2_start_ipassists(struct qeth_card *card) 942 { 943 /* configure isolation level */ 944 if (qeth_set_access_ctrl_online(card, 0)) 945 return -ENODEV; 946 return 0; 947 } 948 949 static void qeth_l2_trace_features(struct qeth_card *card) 950 { 951 /* Set BridgePort features */ 952 QETH_CARD_TEXT(card, 2, "featuSBP"); 953 QETH_CARD_HEX(card, 2, &card->options.sbp.supported_funcs, 954 sizeof(card->options.sbp.supported_funcs)); 955 /* VNIC Characteristics features */ 956 QETH_CARD_TEXT(card, 2, "feaVNICC"); 957 QETH_CARD_HEX(card, 2, &card->options.vnicc.sup_chars, 958 sizeof(card->options.vnicc.sup_chars)); 959 } 960 961 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) 962 { 963 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 964 int rc = 0; 965 enum qeth_card_states recover_flag; 966 967 mutex_lock(&card->discipline_mutex); 968 mutex_lock(&card->conf_mutex); 969 QETH_DBF_TEXT(SETUP, 2, "setonlin"); 970 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 971 972 recover_flag = card->state; 973 rc = qeth_core_hardsetup_card(card); 974 if (rc) { 975 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc); 976 rc = -ENODEV; 977 goto out_remove; 978 } 979 qeth_bridgeport_query_support(card); 980 if (card->options.sbp.supported_funcs) 981 dev_info(&card->gdev->dev, 982 "The device represents a Bridge Capable Port\n"); 983 984 rc = qeth_l2_setup_netdev(card); 985 if (rc) 986 goto out_remove; 987 988 if (card->info.type != QETH_CARD_TYPE_OSN && 989 !qeth_l2_send_setmac(card, card->dev->dev_addr)) 990 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; 991 992 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { 993 if (card->info.hwtrap && 994 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) 995 card->info.hwtrap = 0; 996 } else 997 card->info.hwtrap = 0; 998 999 /* for the rx_bcast characteristic, init VNICC after setmac */ 1000 qeth_l2_vnicc_init(card); 1001 1002 qeth_trace_features(card); 1003 qeth_l2_trace_features(card); 1004 1005 qeth_l2_setup_bridgeport_attrs(card); 1006 1007 card->state = CARD_STATE_HARDSETUP; 1008 qeth_print_status_message(card); 1009 1010 /* softsetup */ 1011 QETH_DBF_TEXT(SETUP, 2, "softsetp"); 1012 1013 if ((card->info.type == QETH_CARD_TYPE_OSD) || 1014 (card->info.type == QETH_CARD_TYPE_OSX)) { 1015 rc = qeth_l2_start_ipassists(card); 1016 if (rc) 1017 goto out_remove; 1018 } 1019 1020 if (card->info.type != QETH_CARD_TYPE_OSN) 1021 qeth_l2_process_vlans(card); 1022 1023 netif_tx_disable(card->dev); 1024 1025 rc = qeth_init_qdio_queues(card); 1026 if (rc) { 1027 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 1028 rc = -ENODEV; 1029 goto out_remove; 1030 } 1031 card->state = CARD_STATE_SOFTSETUP; 1032 if (card->lan_online) 1033 netif_carrier_on(card->dev); 1034 else 1035 netif_carrier_off(card->dev); 1036 1037 qeth_set_allowed_threads(card, 0xffffffff, 0); 1038 1039 qeth_enable_hw_features(card->dev); 1040 if (recover_flag == CARD_STATE_RECOVER) { 1041 if (recovery_mode && 1042 card->info.type != QETH_CARD_TYPE_OSN) { 1043 __qeth_l2_open(card->dev); 1044 qeth_l2_set_rx_mode(card->dev); 1045 } else { 1046 rtnl_lock(); 1047 dev_open(card->dev); 1048 rtnl_unlock(); 1049 } 1050 } 1051 /* let user_space know that device is online */ 1052 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); 1053 mutex_unlock(&card->conf_mutex); 1054 mutex_unlock(&card->discipline_mutex); 1055 return 0; 1056 1057 out_remove: 1058 qeth_l2_stop_card(card, 0); 1059 ccw_device_set_offline(CARD_DDEV(card)); 1060 ccw_device_set_offline(CARD_WDEV(card)); 1061 ccw_device_set_offline(CARD_RDEV(card)); 1062 qdio_free(CARD_DDEV(card)); 1063 if (recover_flag == CARD_STATE_RECOVER) 1064 card->state = CARD_STATE_RECOVER; 1065 else 1066 card->state = CARD_STATE_DOWN; 1067 mutex_unlock(&card->conf_mutex); 1068 mutex_unlock(&card->discipline_mutex); 1069 return rc; 1070 } 1071 1072 static int qeth_l2_set_online(struct ccwgroup_device *gdev) 1073 { 1074 return __qeth_l2_set_online(gdev, 0); 1075 } 1076 1077 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, 1078 int recovery_mode) 1079 { 1080 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 1081 int rc = 0, rc2 = 0, rc3 = 0; 1082 enum qeth_card_states recover_flag; 1083 1084 mutex_lock(&card->discipline_mutex); 1085 mutex_lock(&card->conf_mutex); 1086 QETH_DBF_TEXT(SETUP, 3, "setoffl"); 1087 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); 1088 1089 netif_carrier_off(card->dev); 1090 recover_flag = card->state; 1091 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { 1092 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1093 card->info.hwtrap = 1; 1094 } 1095 qeth_l2_stop_card(card, recovery_mode); 1096 rc = ccw_device_set_offline(CARD_DDEV(card)); 1097 rc2 = ccw_device_set_offline(CARD_WDEV(card)); 1098 rc3 = ccw_device_set_offline(CARD_RDEV(card)); 1099 if (!rc) 1100 rc = (rc2) ? rc2 : rc3; 1101 if (rc) 1102 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 1103 qdio_free(CARD_DDEV(card)); 1104 if (recover_flag == CARD_STATE_UP) 1105 card->state = CARD_STATE_RECOVER; 1106 /* let user_space know that device is offline */ 1107 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); 1108 mutex_unlock(&card->conf_mutex); 1109 mutex_unlock(&card->discipline_mutex); 1110 return 0; 1111 } 1112 1113 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) 1114 { 1115 return __qeth_l2_set_offline(cgdev, 0); 1116 } 1117 1118 static int qeth_l2_recover(void *ptr) 1119 { 1120 struct qeth_card *card; 1121 int rc = 0; 1122 1123 card = (struct qeth_card *) ptr; 1124 QETH_CARD_TEXT(card, 2, "recover1"); 1125 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) 1126 return 0; 1127 QETH_CARD_TEXT(card, 2, "recover2"); 1128 dev_warn(&card->gdev->dev, 1129 "A recovery process has been started for the device\n"); 1130 qeth_set_recovery_task(card); 1131 __qeth_l2_set_offline(card->gdev, 1); 1132 rc = __qeth_l2_set_online(card->gdev, 1); 1133 if (!rc) 1134 dev_info(&card->gdev->dev, 1135 "Device successfully recovered!\n"); 1136 else { 1137 qeth_close_dev(card); 1138 dev_warn(&card->gdev->dev, "The qeth device driver " 1139 "failed to recover an error on the device\n"); 1140 } 1141 qeth_clear_recovery_task(card); 1142 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 1143 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); 1144 return 0; 1145 } 1146 1147 static int __init qeth_l2_init(void) 1148 { 1149 pr_info("register layer 2 discipline\n"); 1150 return 0; 1151 } 1152 1153 static void __exit qeth_l2_exit(void) 1154 { 1155 pr_info("unregister layer 2 discipline\n"); 1156 } 1157 1158 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) 1159 { 1160 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1161 1162 netif_device_detach(card->dev); 1163 qeth_set_allowed_threads(card, 0, 1); 1164 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 1165 if (gdev->state == CCWGROUP_OFFLINE) 1166 return 0; 1167 if (card->state == CARD_STATE_UP) { 1168 if (card->info.hwtrap) 1169 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1170 __qeth_l2_set_offline(card->gdev, 1); 1171 } else 1172 __qeth_l2_set_offline(card->gdev, 0); 1173 return 0; 1174 } 1175 1176 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) 1177 { 1178 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1179 int rc = 0; 1180 1181 if (gdev->state == CCWGROUP_OFFLINE) 1182 goto out; 1183 1184 if (card->state == CARD_STATE_RECOVER) { 1185 rc = __qeth_l2_set_online(card->gdev, 1); 1186 if (rc) { 1187 rtnl_lock(); 1188 dev_close(card->dev); 1189 rtnl_unlock(); 1190 } 1191 } else 1192 rc = __qeth_l2_set_online(card->gdev, 0); 1193 out: 1194 qeth_set_allowed_threads(card, 0xffffffff, 0); 1195 netif_device_attach(card->dev); 1196 if (rc) 1197 dev_warn(&card->gdev->dev, "The qeth device driver " 1198 "failed to recover an error on the device\n"); 1199 return rc; 1200 } 1201 1202 /* Returns zero if the command is successfully "consumed" */ 1203 static int qeth_l2_control_event(struct qeth_card *card, 1204 struct qeth_ipa_cmd *cmd) 1205 { 1206 switch (cmd->hdr.command) { 1207 case IPA_CMD_SETBRIDGEPORT_OSA: 1208 case IPA_CMD_SETBRIDGEPORT_IQD: 1209 if (cmd->data.sbp.hdr.command_code == 1210 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { 1211 qeth_bridge_state_change(card, cmd); 1212 return 0; 1213 } else 1214 return 1; 1215 case IPA_CMD_ADDRESS_CHANGE_NOTIF: 1216 qeth_bridge_host_event(card, cmd); 1217 return 0; 1218 default: 1219 return 1; 1220 } 1221 } 1222 1223 struct qeth_discipline qeth_l2_discipline = { 1224 .devtype = &qeth_l2_devtype, 1225 .process_rx_buffer = qeth_l2_process_inbound_buffer, 1226 .recover = qeth_l2_recover, 1227 .setup = qeth_l2_probe_device, 1228 .remove = qeth_l2_remove_device, 1229 .set_online = qeth_l2_set_online, 1230 .set_offline = qeth_l2_set_offline, 1231 .freeze = qeth_l2_pm_suspend, 1232 .thaw = qeth_l2_pm_resume, 1233 .restore = qeth_l2_pm_resume, 1234 .do_ioctl = NULL, 1235 .control_event_handler = qeth_l2_control_event, 1236 }; 1237 EXPORT_SYMBOL_GPL(qeth_l2_discipline); 1238 1239 static int qeth_osn_send_control_data(struct qeth_card *card, int len, 1240 struct qeth_cmd_buffer *iob) 1241 { 1242 struct qeth_channel *channel = iob->channel; 1243 unsigned long flags; 1244 int rc = 0; 1245 1246 QETH_CARD_TEXT(card, 5, "osndctrd"); 1247 1248 wait_event(card->wait_q, 1249 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1250 qeth_prepare_control_data(card, len, iob); 1251 QETH_CARD_TEXT(card, 6, "osnoirqp"); 1252 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); 1253 rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1254 (addr_t) iob, 0, 0, QETH_IPA_TIMEOUT); 1255 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); 1256 if (rc) { 1257 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " 1258 "ccw_device_start rc = %i\n", rc); 1259 QETH_CARD_TEXT_(card, 2, " err%d", rc); 1260 qeth_release_buffer(channel, iob); 1261 atomic_set(&channel->irq_pending, 0); 1262 wake_up(&card->wait_q); 1263 } 1264 return rc; 1265 } 1266 1267 static int qeth_osn_send_ipa_cmd(struct qeth_card *card, 1268 struct qeth_cmd_buffer *iob, int data_len) 1269 { 1270 u16 s1, s2; 1271 1272 QETH_CARD_TEXT(card, 4, "osndipa"); 1273 1274 qeth_prepare_ipa_cmd(card, iob); 1275 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); 1276 s2 = (u16)data_len; 1277 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 1278 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 1279 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 1280 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 1281 return qeth_osn_send_control_data(card, s1, iob); 1282 } 1283 1284 int qeth_osn_assist(struct net_device *dev, void *data, int data_len) 1285 { 1286 struct qeth_cmd_buffer *iob; 1287 struct qeth_card *card; 1288 1289 if (!dev) 1290 return -ENODEV; 1291 card = dev->ml_priv; 1292 if (!card) 1293 return -ENODEV; 1294 QETH_CARD_TEXT(card, 2, "osnsdmc"); 1295 if (!qeth_card_hw_is_reachable(card)) 1296 return -ENODEV; 1297 iob = qeth_wait_for_buffer(&card->write); 1298 memcpy(__ipa_cmd(iob), data, data_len); 1299 return qeth_osn_send_ipa_cmd(card, iob, data_len); 1300 } 1301 EXPORT_SYMBOL(qeth_osn_assist); 1302 1303 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, 1304 int (*assist_cb)(struct net_device *, void *), 1305 int (*data_cb)(struct sk_buff *)) 1306 { 1307 struct qeth_card *card; 1308 1309 *dev = qeth_l2_netdev_by_devno(read_dev_no); 1310 if (*dev == NULL) 1311 return -ENODEV; 1312 card = (*dev)->ml_priv; 1313 if (!card) 1314 return -ENODEV; 1315 QETH_CARD_TEXT(card, 2, "osnreg"); 1316 if ((assist_cb == NULL) || (data_cb == NULL)) 1317 return -EINVAL; 1318 card->osn_info.assist_cb = assist_cb; 1319 card->osn_info.data_cb = data_cb; 1320 return 0; 1321 } 1322 EXPORT_SYMBOL(qeth_osn_register); 1323 1324 void qeth_osn_deregister(struct net_device *dev) 1325 { 1326 struct qeth_card *card; 1327 1328 if (!dev) 1329 return; 1330 card = dev->ml_priv; 1331 if (!card) 1332 return; 1333 QETH_CARD_TEXT(card, 2, "osndereg"); 1334 card->osn_info.assist_cb = NULL; 1335 card->osn_info.data_cb = NULL; 1336 return; 1337 } 1338 EXPORT_SYMBOL(qeth_osn_deregister); 1339 1340 /* SETBRIDGEPORT support, async notifications */ 1341 1342 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; 1343 1344 /** 1345 * qeth_bridge_emit_host_event() - bridgeport address change notification 1346 * @card: qeth_card structure pointer, for udev events. 1347 * @evtype: "normal" register/unregister, or abort, or reset. For abort 1348 * and reset token and addr_lnid are unused and may be NULL. 1349 * @code: event bitmask: high order bit 0x80 value 1 means removal of an 1350 * object, 0 - addition of an object. 1351 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. 1352 * @token: "network token" structure identifying physical address of the port. 1353 * @addr_lnid: pointer to structure with MAC address and VLAN ID. 1354 * 1355 * This function is called when registrations and deregistrations are 1356 * reported by the hardware, and also when notifications are enabled - 1357 * for all currently registered addresses. 1358 */ 1359 static void qeth_bridge_emit_host_event(struct qeth_card *card, 1360 enum qeth_an_event_type evtype, 1361 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid) 1362 { 1363 char str[7][32]; 1364 char *env[8]; 1365 int i = 0; 1366 1367 switch (evtype) { 1368 case anev_reg_unreg: 1369 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", 1370 (code & IPA_ADDR_CHANGE_CODE_REMOVAL) 1371 ? "deregister" : "register"); 1372 env[i] = str[i]; i++; 1373 if (code & IPA_ADDR_CHANGE_CODE_VLANID) { 1374 snprintf(str[i], sizeof(str[i]), "VLAN=%d", 1375 addr_lnid->lnid); 1376 env[i] = str[i]; i++; 1377 } 1378 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { 1379 snprintf(str[i], sizeof(str[i]), "MAC=%pM", 1380 addr_lnid->mac); 1381 env[i] = str[i]; i++; 1382 } 1383 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", 1384 token->cssid, token->ssid, token->devnum); 1385 env[i] = str[i]; i++; 1386 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); 1387 env[i] = str[i]; i++; 1388 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", 1389 token->chpid); 1390 env[i] = str[i]; i++; 1391 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); 1392 env[i] = str[i]; i++; 1393 break; 1394 case anev_abort: 1395 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); 1396 env[i] = str[i]; i++; 1397 break; 1398 case anev_reset: 1399 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); 1400 env[i] = str[i]; i++; 1401 break; 1402 } 1403 env[i] = NULL; 1404 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); 1405 } 1406 1407 struct qeth_bridge_state_data { 1408 struct work_struct worker; 1409 struct qeth_card *card; 1410 struct qeth_sbp_state_change qports; 1411 }; 1412 1413 static void qeth_bridge_state_change_worker(struct work_struct *work) 1414 { 1415 struct qeth_bridge_state_data *data = 1416 container_of(work, struct qeth_bridge_state_data, worker); 1417 /* We are only interested in the first entry - local port */ 1418 struct qeth_sbp_port_entry *entry = &data->qports.entry[0]; 1419 char env_locrem[32]; 1420 char env_role[32]; 1421 char env_state[32]; 1422 char *env[] = { 1423 env_locrem, 1424 env_role, 1425 env_state, 1426 NULL 1427 }; 1428 1429 /* Role should not change by itself, but if it did, */ 1430 /* information from the hardware is authoritative. */ 1431 mutex_lock(&data->card->conf_mutex); 1432 data->card->options.sbp.role = entry->role; 1433 mutex_unlock(&data->card->conf_mutex); 1434 1435 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); 1436 snprintf(env_role, sizeof(env_role), "ROLE=%s", 1437 (entry->role == QETH_SBP_ROLE_NONE) ? "none" : 1438 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : 1439 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : 1440 "<INVALID>"); 1441 snprintf(env_state, sizeof(env_state), "STATE=%s", 1442 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : 1443 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" : 1444 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" : 1445 "<INVALID>"); 1446 kobject_uevent_env(&data->card->gdev->dev.kobj, 1447 KOBJ_CHANGE, env); 1448 kfree(data); 1449 } 1450 1451 static void qeth_bridge_state_change(struct qeth_card *card, 1452 struct qeth_ipa_cmd *cmd) 1453 { 1454 struct qeth_sbp_state_change *qports = 1455 &cmd->data.sbp.data.state_change; 1456 struct qeth_bridge_state_data *data; 1457 int extrasize; 1458 1459 QETH_CARD_TEXT(card, 2, "brstchng"); 1460 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1461 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length); 1462 return; 1463 } 1464 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries; 1465 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize, 1466 GFP_ATOMIC); 1467 if (!data) { 1468 QETH_CARD_TEXT(card, 2, "BPSalloc"); 1469 return; 1470 } 1471 INIT_WORK(&data->worker, qeth_bridge_state_change_worker); 1472 data->card = card; 1473 memcpy(&data->qports, qports, 1474 sizeof(struct qeth_sbp_state_change) + extrasize); 1475 queue_work(qeth_wq, &data->worker); 1476 } 1477 1478 struct qeth_bridge_host_data { 1479 struct work_struct worker; 1480 struct qeth_card *card; 1481 struct qeth_ipacmd_addr_change hostevs; 1482 }; 1483 1484 static void qeth_bridge_host_event_worker(struct work_struct *work) 1485 { 1486 struct qeth_bridge_host_data *data = 1487 container_of(work, struct qeth_bridge_host_data, worker); 1488 int i; 1489 1490 if (data->hostevs.lost_event_mask) { 1491 dev_info(&data->card->gdev->dev, 1492 "Address notification from the Bridge Port stopped %s (%s)\n", 1493 data->card->dev->name, 1494 (data->hostevs.lost_event_mask == 0x01) 1495 ? "Overflow" 1496 : (data->hostevs.lost_event_mask == 0x02) 1497 ? "Bridge port state change" 1498 : "Unknown reason"); 1499 mutex_lock(&data->card->conf_mutex); 1500 data->card->options.sbp.hostnotification = 0; 1501 mutex_unlock(&data->card->conf_mutex); 1502 qeth_bridge_emit_host_event(data->card, anev_abort, 1503 0, NULL, NULL); 1504 } else 1505 for (i = 0; i < data->hostevs.num_entries; i++) { 1506 struct qeth_ipacmd_addr_change_entry *entry = 1507 &data->hostevs.entry[i]; 1508 qeth_bridge_emit_host_event(data->card, 1509 anev_reg_unreg, 1510 entry->change_code, 1511 &entry->token, &entry->addr_lnid); 1512 } 1513 kfree(data); 1514 } 1515 1516 static void qeth_bridge_host_event(struct qeth_card *card, 1517 struct qeth_ipa_cmd *cmd) 1518 { 1519 struct qeth_ipacmd_addr_change *hostevs = 1520 &cmd->data.addrchange; 1521 struct qeth_bridge_host_data *data; 1522 int extrasize; 1523 1524 QETH_CARD_TEXT(card, 2, "brhostev"); 1525 if (cmd->hdr.return_code != 0x0000) { 1526 if (cmd->hdr.return_code == 0x0010) { 1527 if (hostevs->lost_event_mask == 0x00) 1528 hostevs->lost_event_mask = 0xff; 1529 } else { 1530 QETH_CARD_TEXT_(card, 2, "BPHe%04x", 1531 cmd->hdr.return_code); 1532 return; 1533 } 1534 } 1535 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * 1536 hostevs->num_entries; 1537 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize, 1538 GFP_ATOMIC); 1539 if (!data) { 1540 QETH_CARD_TEXT(card, 2, "BPHalloc"); 1541 return; 1542 } 1543 INIT_WORK(&data->worker, qeth_bridge_host_event_worker); 1544 data->card = card; 1545 memcpy(&data->hostevs, hostevs, 1546 sizeof(struct qeth_ipacmd_addr_change) + extrasize); 1547 queue_work(qeth_wq, &data->worker); 1548 } 1549 1550 /* SETBRIDGEPORT support; sending commands */ 1551 1552 struct _qeth_sbp_cbctl { 1553 u16 ipa_rc; 1554 u16 cmd_rc; 1555 union { 1556 u32 supported; 1557 struct { 1558 enum qeth_sbp_roles *role; 1559 enum qeth_sbp_states *state; 1560 } qports; 1561 } data; 1562 }; 1563 1564 /** 1565 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes. 1566 * @card: qeth_card structure pointer, for debug messages. 1567 * @cbctl: state structure with hardware return codes. 1568 * @setcmd: IPA command code 1569 * 1570 * Returns negative errno-compatible error indication or 0 on success. 1571 */ 1572 static int qeth_bridgeport_makerc(struct qeth_card *card, 1573 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd) 1574 { 1575 int rc; 1576 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD); 1577 1578 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) || 1579 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc))) 1580 switch (cbctl->cmd_rc) { 1581 case IPA_RC_SUCCESS: 1582 rc = 0; 1583 break; 1584 case IPA_RC_L2_UNSUPPORTED_CMD: 1585 case IPA_RC_UNSUPPORTED_COMMAND: 1586 rc = -EOPNOTSUPP; 1587 break; 1588 case IPA_RC_SBP_OSA_NOT_CONFIGURED: 1589 case IPA_RC_SBP_IQD_NOT_CONFIGURED: 1590 rc = -ENODEV; /* maybe not the best code here? */ 1591 dev_err(&card->gdev->dev, 1592 "The device is not configured as a Bridge Port\n"); 1593 break; 1594 case IPA_RC_SBP_OSA_OS_MISMATCH: 1595 case IPA_RC_SBP_IQD_OS_MISMATCH: 1596 rc = -EPERM; 1597 dev_err(&card->gdev->dev, 1598 "A Bridge Port is already configured by a different operating system\n"); 1599 break; 1600 case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY: 1601 case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY: 1602 switch (setcmd) { 1603 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: 1604 rc = -EEXIST; 1605 dev_err(&card->gdev->dev, 1606 "The LAN already has a primary Bridge Port\n"); 1607 break; 1608 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: 1609 rc = -EBUSY; 1610 dev_err(&card->gdev->dev, 1611 "The device is already a primary Bridge Port\n"); 1612 break; 1613 default: 1614 rc = -EIO; 1615 } 1616 break; 1617 case IPA_RC_SBP_OSA_CURRENT_SECOND: 1618 case IPA_RC_SBP_IQD_CURRENT_SECOND: 1619 rc = -EBUSY; 1620 dev_err(&card->gdev->dev, 1621 "The device is already a secondary Bridge Port\n"); 1622 break; 1623 case IPA_RC_SBP_OSA_LIMIT_SECOND: 1624 case IPA_RC_SBP_IQD_LIMIT_SECOND: 1625 rc = -EEXIST; 1626 dev_err(&card->gdev->dev, 1627 "The LAN cannot have more secondary Bridge Ports\n"); 1628 break; 1629 case IPA_RC_SBP_OSA_CURRENT_PRIMARY: 1630 case IPA_RC_SBP_IQD_CURRENT_PRIMARY: 1631 rc = -EBUSY; 1632 dev_err(&card->gdev->dev, 1633 "The device is already a primary Bridge Port\n"); 1634 break; 1635 case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN: 1636 case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN: 1637 rc = -EACCES; 1638 dev_err(&card->gdev->dev, 1639 "The device is not authorized to be a Bridge Port\n"); 1640 break; 1641 default: 1642 rc = -EIO; 1643 } 1644 else 1645 switch (cbctl->ipa_rc) { 1646 case IPA_RC_NOTSUPP: 1647 rc = -EOPNOTSUPP; 1648 break; 1649 case IPA_RC_UNSUPPORTED_COMMAND: 1650 rc = -EOPNOTSUPP; 1651 break; 1652 default: 1653 rc = -EIO; 1654 } 1655 1656 if (rc) { 1657 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc); 1658 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc); 1659 } 1660 return rc; 1661 } 1662 1663 static struct qeth_cmd_buffer *qeth_sbp_build_cmd(struct qeth_card *card, 1664 enum qeth_ipa_sbp_cmd sbp_cmd, 1665 unsigned int cmd_length) 1666 { 1667 enum qeth_ipa_cmds ipa_cmd = (card->info.type == QETH_CARD_TYPE_IQD) ? 1668 IPA_CMD_SETBRIDGEPORT_IQD : 1669 IPA_CMD_SETBRIDGEPORT_OSA; 1670 struct qeth_cmd_buffer *iob; 1671 struct qeth_ipa_cmd *cmd; 1672 1673 iob = qeth_get_ipacmd_buffer(card, ipa_cmd, 0); 1674 if (!iob) 1675 return iob; 1676 cmd = __ipa_cmd(iob); 1677 cmd->data.sbp.hdr.cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1678 cmd_length; 1679 cmd->data.sbp.hdr.command_code = sbp_cmd; 1680 cmd->data.sbp.hdr.used_total = 1; 1681 cmd->data.sbp.hdr.seq_no = 1; 1682 return iob; 1683 } 1684 1685 static int qeth_bridgeport_query_support_cb(struct qeth_card *card, 1686 struct qeth_reply *reply, unsigned long data) 1687 { 1688 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1689 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1690 QETH_CARD_TEXT(card, 2, "brqsupcb"); 1691 cbctl->ipa_rc = cmd->hdr.return_code; 1692 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1693 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) { 1694 cbctl->data.supported = 1695 cmd->data.sbp.data.query_cmds_supp.supported_cmds; 1696 } else { 1697 cbctl->data.supported = 0; 1698 } 1699 return 0; 1700 } 1701 1702 /** 1703 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. 1704 * @card: qeth_card structure pointer. 1705 * 1706 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card 1707 * strucutre: card->options.sbp.supported_funcs. 1708 */ 1709 static void qeth_bridgeport_query_support(struct qeth_card *card) 1710 { 1711 struct qeth_cmd_buffer *iob; 1712 struct _qeth_sbp_cbctl cbctl; 1713 1714 QETH_CARD_TEXT(card, 2, "brqsuppo"); 1715 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_COMMANDS_SUPPORTED, 1716 sizeof(struct qeth_sbp_query_cmds_supp)); 1717 if (!iob) 1718 return; 1719 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, 1720 (void *)&cbctl) || 1721 qeth_bridgeport_makerc(card, &cbctl, 1722 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) { 1723 /* non-zero makerc signifies failure, and produce messages */ 1724 card->options.sbp.role = QETH_SBP_ROLE_NONE; 1725 return; 1726 } 1727 card->options.sbp.supported_funcs = cbctl.data.supported; 1728 } 1729 1730 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, 1731 struct qeth_reply *reply, unsigned long data) 1732 { 1733 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1734 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports; 1735 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1736 1737 QETH_CARD_TEXT(card, 2, "brqprtcb"); 1738 cbctl->ipa_rc = cmd->hdr.return_code; 1739 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1740 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0)) 1741 return 0; 1742 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1743 cbctl->cmd_rc = 0xffff; 1744 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); 1745 return 0; 1746 } 1747 /* first entry contains the state of the local port */ 1748 if (qports->num_entries > 0) { 1749 if (cbctl->data.qports.role) 1750 *cbctl->data.qports.role = qports->entry[0].role; 1751 if (cbctl->data.qports.state) 1752 *cbctl->data.qports.state = qports->entry[0].state; 1753 } 1754 return 0; 1755 } 1756 1757 /** 1758 * qeth_bridgeport_query_ports() - query local bridgeport status. 1759 * @card: qeth_card structure pointer. 1760 * @role: Role of the port: 0-none, 1-primary, 2-secondary. 1761 * @state: State of the port: 0-inactive, 1-standby, 2-active. 1762 * 1763 * Returns negative errno-compatible error indication or 0 on success. 1764 * 1765 * 'role' and 'state' are not updated in case of hardware operation failure. 1766 */ 1767 int qeth_bridgeport_query_ports(struct qeth_card *card, 1768 enum qeth_sbp_roles *role, enum qeth_sbp_states *state) 1769 { 1770 int rc = 0; 1771 struct qeth_cmd_buffer *iob; 1772 struct _qeth_sbp_cbctl cbctl = { 1773 .data = { 1774 .qports = { 1775 .role = role, 1776 .state = state, 1777 }, 1778 }, 1779 }; 1780 1781 QETH_CARD_TEXT(card, 2, "brqports"); 1782 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) 1783 return -EOPNOTSUPP; 1784 iob = qeth_sbp_build_cmd(card, IPA_SBP_QUERY_BRIDGE_PORTS, 0); 1785 if (!iob) 1786 return -ENOMEM; 1787 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, 1788 (void *)&cbctl); 1789 if (rc < 0) 1790 return rc; 1791 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS); 1792 } 1793 1794 static int qeth_bridgeport_set_cb(struct qeth_card *card, 1795 struct qeth_reply *reply, unsigned long data) 1796 { 1797 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 1798 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1799 QETH_CARD_TEXT(card, 2, "brsetrcb"); 1800 cbctl->ipa_rc = cmd->hdr.return_code; 1801 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1802 return 0; 1803 } 1804 1805 /** 1806 * qeth_bridgeport_setrole() - Assign primary role to the port. 1807 * @card: qeth_card structure pointer. 1808 * @role: Role to assign. 1809 * 1810 * Returns negative errno-compatible error indication or 0 on success. 1811 */ 1812 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) 1813 { 1814 int rc = 0; 1815 int cmdlength; 1816 struct qeth_cmd_buffer *iob; 1817 struct _qeth_sbp_cbctl cbctl; 1818 enum qeth_ipa_sbp_cmd setcmd; 1819 1820 QETH_CARD_TEXT(card, 2, "brsetrol"); 1821 switch (role) { 1822 case QETH_SBP_ROLE_NONE: 1823 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; 1824 cmdlength = sizeof(struct qeth_sbp_reset_role); 1825 break; 1826 case QETH_SBP_ROLE_PRIMARY: 1827 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; 1828 cmdlength = sizeof(struct qeth_sbp_set_primary); 1829 break; 1830 case QETH_SBP_ROLE_SECONDARY: 1831 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; 1832 cmdlength = sizeof(struct qeth_sbp_set_secondary); 1833 break; 1834 default: 1835 return -EINVAL; 1836 } 1837 if (!(card->options.sbp.supported_funcs & setcmd)) 1838 return -EOPNOTSUPP; 1839 iob = qeth_sbp_build_cmd(card, setcmd, cmdlength); 1840 if (!iob) 1841 return -ENOMEM; 1842 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, 1843 (void *)&cbctl); 1844 if (rc < 0) 1845 return rc; 1846 return qeth_bridgeport_makerc(card, &cbctl, setcmd); 1847 } 1848 1849 /** 1850 * qeth_anset_makerc() - derive "traditional" error from hardware codes. 1851 * @card: qeth_card structure pointer, for debug messages. 1852 * 1853 * Returns negative errno-compatible error indication or 0 on success. 1854 */ 1855 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response) 1856 { 1857 int rc; 1858 1859 if (pnso_rc == 0) 1860 switch (response) { 1861 case 0x0001: 1862 rc = 0; 1863 break; 1864 case 0x0004: 1865 case 0x0100: 1866 case 0x0106: 1867 rc = -EOPNOTSUPP; 1868 dev_err(&card->gdev->dev, 1869 "Setting address notification failed\n"); 1870 break; 1871 case 0x0107: 1872 rc = -EAGAIN; 1873 break; 1874 default: 1875 rc = -EIO; 1876 } 1877 else 1878 rc = -EIO; 1879 1880 if (rc) { 1881 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc); 1882 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response); 1883 } 1884 return rc; 1885 } 1886 1887 static void qeth_bridgeport_an_set_cb(void *priv, 1888 enum qdio_brinfo_entry_type type, void *entry) 1889 { 1890 struct qeth_card *card = (struct qeth_card *)priv; 1891 struct qdio_brinfo_entry_l2 *l2entry; 1892 u8 code; 1893 1894 if (type != l2_addr_lnid) { 1895 WARN_ON_ONCE(1); 1896 return; 1897 } 1898 1899 l2entry = (struct qdio_brinfo_entry_l2 *)entry; 1900 code = IPA_ADDR_CHANGE_CODE_MACADDR; 1901 if (l2entry->addr_lnid.lnid) 1902 code |= IPA_ADDR_CHANGE_CODE_VLANID; 1903 qeth_bridge_emit_host_event(card, anev_reg_unreg, code, 1904 (struct net_if_token *)&l2entry->nit, 1905 (struct mac_addr_lnid *)&l2entry->addr_lnid); 1906 } 1907 1908 /** 1909 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification 1910 * @card: qeth_card structure pointer. 1911 * @enable: 0 - disable, non-zero - enable notifications 1912 * 1913 * Returns negative errno-compatible error indication or 0 on success. 1914 * 1915 * On enable, emits a series of address notifications udev events for all 1916 * currently registered hosts. 1917 */ 1918 int qeth_bridgeport_an_set(struct qeth_card *card, int enable) 1919 { 1920 int rc; 1921 u16 response; 1922 struct ccw_device *ddev; 1923 struct subchannel_id schid; 1924 1925 if (!card) 1926 return -EINVAL; 1927 if (!card->options.sbp.supported_funcs) 1928 return -EOPNOTSUPP; 1929 ddev = CARD_DDEV(card); 1930 ccw_device_get_schid(ddev, &schid); 1931 1932 if (enable) { 1933 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); 1934 rc = qdio_pnso_brinfo(schid, 1, &response, 1935 qeth_bridgeport_an_set_cb, card); 1936 } else 1937 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL); 1938 return qeth_anset_makerc(card, rc, response); 1939 } 1940 1941 static bool qeth_bridgeport_is_in_use(struct qeth_card *card) 1942 { 1943 return (card->options.sbp.role || card->options.sbp.reflect_promisc || 1944 card->options.sbp.hostnotification); 1945 } 1946 1947 /* VNIC Characteristics support */ 1948 1949 /* handle VNICC IPA command return codes; convert to error codes */ 1950 static int qeth_l2_vnicc_makerc(struct qeth_card *card, int ipa_rc) 1951 { 1952 int rc; 1953 1954 switch (ipa_rc) { 1955 case IPA_RC_SUCCESS: 1956 return ipa_rc; 1957 case IPA_RC_L2_UNSUPPORTED_CMD: 1958 case IPA_RC_NOTSUPP: 1959 rc = -EOPNOTSUPP; 1960 break; 1961 case IPA_RC_VNICC_OOSEQ: 1962 rc = -EALREADY; 1963 break; 1964 case IPA_RC_VNICC_VNICBP: 1965 rc = -EBUSY; 1966 break; 1967 case IPA_RC_L2_ADDR_TABLE_FULL: 1968 rc = -ENOSPC; 1969 break; 1970 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: 1971 rc = -EACCES; 1972 break; 1973 default: 1974 rc = -EIO; 1975 } 1976 1977 QETH_CARD_TEXT_(card, 2, "err%04x", ipa_rc); 1978 return rc; 1979 } 1980 1981 /* generic VNICC request call back control */ 1982 struct _qeth_l2_vnicc_request_cbctl { 1983 u32 sub_cmd; 1984 struct { 1985 u32 vnic_char; 1986 u32 timeout; 1987 } param; 1988 struct { 1989 union{ 1990 u32 *sup_cmds; 1991 u32 *timeout; 1992 }; 1993 } result; 1994 }; 1995 1996 /* generic VNICC request call back */ 1997 static int qeth_l2_vnicc_request_cb(struct qeth_card *card, 1998 struct qeth_reply *reply, 1999 unsigned long data) 2000 { 2001 struct _qeth_l2_vnicc_request_cbctl *cbctl = 2002 (struct _qeth_l2_vnicc_request_cbctl *) reply->param; 2003 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 2004 struct qeth_ipacmd_vnicc *rep = &cmd->data.vnicc; 2005 2006 QETH_CARD_TEXT(card, 2, "vniccrcb"); 2007 if (cmd->hdr.return_code) 2008 return 0; 2009 /* return results to caller */ 2010 card->options.vnicc.sup_chars = rep->hdr.sup; 2011 card->options.vnicc.cur_chars = rep->hdr.cur; 2012 2013 if (cbctl->sub_cmd == IPA_VNICC_QUERY_CMDS) 2014 *cbctl->result.sup_cmds = rep->query_cmds.sup_cmds; 2015 2016 if (cbctl->sub_cmd == IPA_VNICC_GET_TIMEOUT) 2017 *cbctl->result.timeout = rep->getset_timeout.timeout; 2018 2019 return 0; 2020 } 2021 2022 /* generic VNICC request */ 2023 static int qeth_l2_vnicc_request(struct qeth_card *card, 2024 struct _qeth_l2_vnicc_request_cbctl *cbctl) 2025 { 2026 struct qeth_ipacmd_vnicc *req; 2027 struct qeth_cmd_buffer *iob; 2028 struct qeth_ipa_cmd *cmd; 2029 int rc; 2030 2031 QETH_CARD_TEXT(card, 2, "vniccreq"); 2032 2033 /* get new buffer for request */ 2034 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_VNICC, 0); 2035 if (!iob) 2036 return -ENOMEM; 2037 2038 /* create header for request */ 2039 cmd = __ipa_cmd(iob); 2040 req = &cmd->data.vnicc; 2041 2042 /* create sub command header for request */ 2043 req->sub_hdr.data_length = sizeof(req->sub_hdr); 2044 req->sub_hdr.sub_command = cbctl->sub_cmd; 2045 2046 /* create sub command specific request fields */ 2047 switch (cbctl->sub_cmd) { 2048 case IPA_VNICC_QUERY_CHARS: 2049 break; 2050 case IPA_VNICC_QUERY_CMDS: 2051 req->sub_hdr.data_length += sizeof(req->query_cmds); 2052 req->query_cmds.vnic_char = cbctl->param.vnic_char; 2053 break; 2054 case IPA_VNICC_ENABLE: 2055 case IPA_VNICC_DISABLE: 2056 req->sub_hdr.data_length += sizeof(req->set_char); 2057 req->set_char.vnic_char = cbctl->param.vnic_char; 2058 break; 2059 case IPA_VNICC_SET_TIMEOUT: 2060 req->getset_timeout.timeout = cbctl->param.timeout; 2061 /* fallthrough */ 2062 case IPA_VNICC_GET_TIMEOUT: 2063 req->sub_hdr.data_length += sizeof(req->getset_timeout); 2064 req->getset_timeout.vnic_char = cbctl->param.vnic_char; 2065 break; 2066 default: 2067 qeth_release_buffer(iob->channel, iob); 2068 return -EOPNOTSUPP; 2069 } 2070 2071 /* send request */ 2072 rc = qeth_send_ipa_cmd(card, iob, qeth_l2_vnicc_request_cb, 2073 (void *) cbctl); 2074 2075 return qeth_l2_vnicc_makerc(card, rc); 2076 } 2077 2078 /* VNICC query VNIC characteristics request */ 2079 static int qeth_l2_vnicc_query_chars(struct qeth_card *card) 2080 { 2081 struct _qeth_l2_vnicc_request_cbctl cbctl; 2082 2083 /* prepare callback control */ 2084 cbctl.sub_cmd = IPA_VNICC_QUERY_CHARS; 2085 2086 QETH_CARD_TEXT(card, 2, "vniccqch"); 2087 return qeth_l2_vnicc_request(card, &cbctl); 2088 } 2089 2090 /* VNICC query sub commands request */ 2091 static int qeth_l2_vnicc_query_cmds(struct qeth_card *card, u32 vnic_char, 2092 u32 *sup_cmds) 2093 { 2094 struct _qeth_l2_vnicc_request_cbctl cbctl; 2095 2096 /* prepare callback control */ 2097 cbctl.sub_cmd = IPA_VNICC_QUERY_CMDS; 2098 cbctl.param.vnic_char = vnic_char; 2099 cbctl.result.sup_cmds = sup_cmds; 2100 2101 QETH_CARD_TEXT(card, 2, "vniccqcm"); 2102 return qeth_l2_vnicc_request(card, &cbctl); 2103 } 2104 2105 /* VNICC enable/disable characteristic request */ 2106 static int qeth_l2_vnicc_set_char(struct qeth_card *card, u32 vnic_char, 2107 u32 cmd) 2108 { 2109 struct _qeth_l2_vnicc_request_cbctl cbctl; 2110 2111 /* prepare callback control */ 2112 cbctl.sub_cmd = cmd; 2113 cbctl.param.vnic_char = vnic_char; 2114 2115 QETH_CARD_TEXT(card, 2, "vniccedc"); 2116 return qeth_l2_vnicc_request(card, &cbctl); 2117 } 2118 2119 /* VNICC get/set timeout for characteristic request */ 2120 static int qeth_l2_vnicc_getset_timeout(struct qeth_card *card, u32 vnicc, 2121 u32 cmd, u32 *timeout) 2122 { 2123 struct _qeth_l2_vnicc_request_cbctl cbctl; 2124 2125 /* prepare callback control */ 2126 cbctl.sub_cmd = cmd; 2127 cbctl.param.vnic_char = vnicc; 2128 if (cmd == IPA_VNICC_SET_TIMEOUT) 2129 cbctl.param.timeout = *timeout; 2130 if (cmd == IPA_VNICC_GET_TIMEOUT) 2131 cbctl.result.timeout = timeout; 2132 2133 QETH_CARD_TEXT(card, 2, "vniccgst"); 2134 return qeth_l2_vnicc_request(card, &cbctl); 2135 } 2136 2137 /* set current VNICC flag state; called from sysfs store function */ 2138 int qeth_l2_vnicc_set_state(struct qeth_card *card, u32 vnicc, bool state) 2139 { 2140 int rc = 0; 2141 u32 cmd; 2142 2143 QETH_CARD_TEXT(card, 2, "vniccsch"); 2144 2145 /* do not change anything if BridgePort is enabled */ 2146 if (qeth_bridgeport_is_in_use(card)) 2147 return -EBUSY; 2148 2149 /* check if characteristic and enable/disable are supported */ 2150 if (!(card->options.vnicc.sup_chars & vnicc) || 2151 !(card->options.vnicc.set_char_sup & vnicc)) 2152 return -EOPNOTSUPP; 2153 2154 /* set enable/disable command and store wanted characteristic */ 2155 if (state) { 2156 cmd = IPA_VNICC_ENABLE; 2157 card->options.vnicc.wanted_chars |= vnicc; 2158 } else { 2159 cmd = IPA_VNICC_DISABLE; 2160 card->options.vnicc.wanted_chars &= ~vnicc; 2161 } 2162 2163 /* do we need to do anything? */ 2164 if (card->options.vnicc.cur_chars == card->options.vnicc.wanted_chars) 2165 return rc; 2166 2167 /* if card is not ready, simply stop here */ 2168 if (!qeth_card_hw_is_reachable(card)) { 2169 if (state) 2170 card->options.vnicc.cur_chars |= vnicc; 2171 else 2172 card->options.vnicc.cur_chars &= ~vnicc; 2173 return rc; 2174 } 2175 2176 rc = qeth_l2_vnicc_set_char(card, vnicc, cmd); 2177 if (rc) 2178 card->options.vnicc.wanted_chars = 2179 card->options.vnicc.cur_chars; 2180 else { 2181 /* successful online VNICC change; handle special cases */ 2182 if (state && vnicc == QETH_VNICC_RX_BCAST) 2183 card->options.vnicc.rx_bcast_enabled = true; 2184 if (!state && vnicc == QETH_VNICC_LEARNING) 2185 qeth_l2_vnicc_recover_timeout(card, vnicc, 2186 &card->options.vnicc.learning_timeout); 2187 } 2188 2189 return rc; 2190 } 2191 2192 /* get current VNICC flag state; called from sysfs show function */ 2193 int qeth_l2_vnicc_get_state(struct qeth_card *card, u32 vnicc, bool *state) 2194 { 2195 int rc = 0; 2196 2197 QETH_CARD_TEXT(card, 2, "vniccgch"); 2198 2199 /* do not get anything if BridgePort is enabled */ 2200 if (qeth_bridgeport_is_in_use(card)) 2201 return -EBUSY; 2202 2203 /* check if characteristic is supported */ 2204 if (!(card->options.vnicc.sup_chars & vnicc)) 2205 return -EOPNOTSUPP; 2206 2207 /* if card is ready, query current VNICC state */ 2208 if (qeth_card_hw_is_reachable(card)) 2209 rc = qeth_l2_vnicc_query_chars(card); 2210 2211 *state = (card->options.vnicc.cur_chars & vnicc) ? true : false; 2212 return rc; 2213 } 2214 2215 /* set VNICC timeout; called from sysfs store function. Currently, only learning 2216 * supports timeout 2217 */ 2218 int qeth_l2_vnicc_set_timeout(struct qeth_card *card, u32 timeout) 2219 { 2220 int rc = 0; 2221 2222 QETH_CARD_TEXT(card, 2, "vniccsto"); 2223 2224 /* do not change anything if BridgePort is enabled */ 2225 if (qeth_bridgeport_is_in_use(card)) 2226 return -EBUSY; 2227 2228 /* check if characteristic and set_timeout are supported */ 2229 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || 2230 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) 2231 return -EOPNOTSUPP; 2232 2233 /* do we need to do anything? */ 2234 if (card->options.vnicc.learning_timeout == timeout) 2235 return rc; 2236 2237 /* if card is not ready, simply store the value internally and return */ 2238 if (!qeth_card_hw_is_reachable(card)) { 2239 card->options.vnicc.learning_timeout = timeout; 2240 return rc; 2241 } 2242 2243 /* send timeout value to card; if successful, store value internally */ 2244 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, 2245 IPA_VNICC_SET_TIMEOUT, &timeout); 2246 if (!rc) 2247 card->options.vnicc.learning_timeout = timeout; 2248 2249 return rc; 2250 } 2251 2252 /* get current VNICC timeout; called from sysfs show function. Currently, only 2253 * learning supports timeout 2254 */ 2255 int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout) 2256 { 2257 int rc = 0; 2258 2259 QETH_CARD_TEXT(card, 2, "vniccgto"); 2260 2261 /* do not get anything if BridgePort is enabled */ 2262 if (qeth_bridgeport_is_in_use(card)) 2263 return -EBUSY; 2264 2265 /* check if characteristic and get_timeout are supported */ 2266 if (!(card->options.vnicc.sup_chars & QETH_VNICC_LEARNING) || 2267 !(card->options.vnicc.getset_timeout_sup & QETH_VNICC_LEARNING)) 2268 return -EOPNOTSUPP; 2269 /* if card is ready, get timeout. Otherwise, just return stored value */ 2270 *timeout = card->options.vnicc.learning_timeout; 2271 if (qeth_card_hw_is_reachable(card)) 2272 rc = qeth_l2_vnicc_getset_timeout(card, QETH_VNICC_LEARNING, 2273 IPA_VNICC_GET_TIMEOUT, 2274 timeout); 2275 2276 return rc; 2277 } 2278 2279 /* check if VNICC is currently enabled */ 2280 bool qeth_l2_vnicc_is_in_use(struct qeth_card *card) 2281 { 2282 /* if everything is turned off, VNICC is not active */ 2283 if (!card->options.vnicc.cur_chars) 2284 return false; 2285 /* default values are only OK if rx_bcast was not enabled by user 2286 * or the card is offline. 2287 */ 2288 if (card->options.vnicc.cur_chars == QETH_VNICC_DEFAULT) { 2289 if (!card->options.vnicc.rx_bcast_enabled || 2290 !qeth_card_hw_is_reachable(card)) 2291 return false; 2292 } 2293 return true; 2294 } 2295 2296 /* recover user timeout setting */ 2297 static bool qeth_l2_vnicc_recover_timeout(struct qeth_card *card, u32 vnicc, 2298 u32 *timeout) 2299 { 2300 if (card->options.vnicc.sup_chars & vnicc && 2301 card->options.vnicc.getset_timeout_sup & vnicc && 2302 !qeth_l2_vnicc_getset_timeout(card, vnicc, IPA_VNICC_SET_TIMEOUT, 2303 timeout)) 2304 return false; 2305 *timeout = QETH_VNICC_DEFAULT_TIMEOUT; 2306 return true; 2307 } 2308 2309 /* recover user characteristic setting */ 2310 static bool qeth_l2_vnicc_recover_char(struct qeth_card *card, u32 vnicc, 2311 bool enable) 2312 { 2313 u32 cmd = enable ? IPA_VNICC_ENABLE : IPA_VNICC_DISABLE; 2314 2315 if (card->options.vnicc.sup_chars & vnicc && 2316 card->options.vnicc.set_char_sup & vnicc && 2317 !qeth_l2_vnicc_set_char(card, vnicc, cmd)) 2318 return false; 2319 card->options.vnicc.wanted_chars &= ~vnicc; 2320 card->options.vnicc.wanted_chars |= QETH_VNICC_DEFAULT & vnicc; 2321 return true; 2322 } 2323 2324 /* (re-)initialize VNICC */ 2325 static void qeth_l2_vnicc_init(struct qeth_card *card) 2326 { 2327 u32 *timeout = &card->options.vnicc.learning_timeout; 2328 unsigned int chars_len, i; 2329 unsigned long chars_tmp; 2330 u32 sup_cmds, vnicc; 2331 bool enable, error; 2332 2333 QETH_CARD_TEXT(card, 2, "vniccini"); 2334 /* reset rx_bcast */ 2335 card->options.vnicc.rx_bcast_enabled = 0; 2336 /* initial query and storage of VNIC characteristics */ 2337 if (qeth_l2_vnicc_query_chars(card)) { 2338 if (card->options.vnicc.wanted_chars != QETH_VNICC_DEFAULT || 2339 *timeout != QETH_VNICC_DEFAULT_TIMEOUT) 2340 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); 2341 /* fail quietly if user didn't change the default config */ 2342 card->options.vnicc.sup_chars = 0; 2343 card->options.vnicc.cur_chars = 0; 2344 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; 2345 return; 2346 } 2347 /* get supported commands for each supported characteristic */ 2348 chars_tmp = card->options.vnicc.sup_chars; 2349 chars_len = sizeof(card->options.vnicc.sup_chars) * BITS_PER_BYTE; 2350 for_each_set_bit(i, &chars_tmp, chars_len) { 2351 vnicc = BIT(i); 2352 qeth_l2_vnicc_query_cmds(card, vnicc, &sup_cmds); 2353 if (!(sup_cmds & IPA_VNICC_SET_TIMEOUT) || 2354 !(sup_cmds & IPA_VNICC_GET_TIMEOUT)) 2355 card->options.vnicc.getset_timeout_sup &= ~vnicc; 2356 if (!(sup_cmds & IPA_VNICC_ENABLE) || 2357 !(sup_cmds & IPA_VNICC_DISABLE)) 2358 card->options.vnicc.set_char_sup &= ~vnicc; 2359 } 2360 /* enforce assumed default values and recover settings, if changed */ 2361 error = qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING, 2362 timeout); 2363 chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT; 2364 chars_tmp |= QETH_VNICC_BRIDGE_INVISIBLE; 2365 chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE; 2366 for_each_set_bit(i, &chars_tmp, chars_len) { 2367 vnicc = BIT(i); 2368 enable = card->options.vnicc.wanted_chars & vnicc; 2369 error |= qeth_l2_vnicc_recover_char(card, vnicc, enable); 2370 } 2371 if (error) 2372 dev_err(&card->gdev->dev, "Configuring the VNIC characteristics failed\n"); 2373 } 2374 2375 /* configure default values of VNIC characteristics */ 2376 static void qeth_l2_vnicc_set_defaults(struct qeth_card *card) 2377 { 2378 /* characteristics values */ 2379 card->options.vnicc.sup_chars = QETH_VNICC_ALL; 2380 card->options.vnicc.cur_chars = QETH_VNICC_DEFAULT; 2381 card->options.vnicc.learning_timeout = QETH_VNICC_DEFAULT_TIMEOUT; 2382 /* supported commands */ 2383 card->options.vnicc.set_char_sup = QETH_VNICC_ALL; 2384 card->options.vnicc.getset_timeout_sup = QETH_VNICC_LEARNING; 2385 /* settings wanted by users */ 2386 card->options.vnicc.wanted_chars = QETH_VNICC_DEFAULT; 2387 } 2388 2389 module_init(qeth_l2_init); 2390 module_exit(qeth_l2_exit); 2391 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 2392 MODULE_DESCRIPTION("qeth layer 2 discipline"); 2393 MODULE_LICENSE("GPL"); 2394