1 /* 2 * Copyright IBM Corp. 2007, 2009 3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, 4 * Frank Pavlic <fpavlic@de.ibm.com>, 5 * Thomas Spatzier <tspat@de.ibm.com>, 6 * Frank Blaschka <frank.blaschka@de.ibm.com> 7 */ 8 9 #define KMSG_COMPONENT "qeth" 10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 11 12 #include <linux/module.h> 13 #include <linux/moduleparam.h> 14 #include <linux/string.h> 15 #include <linux/errno.h> 16 #include <linux/kernel.h> 17 #include <linux/slab.h> 18 #include <linux/etherdevice.h> 19 #include <linux/mii.h> 20 #include <linux/ip.h> 21 #include <linux/list.h> 22 23 #include "qeth_core.h" 24 #include "qeth_l2.h" 25 26 static int qeth_l2_set_offline(struct ccwgroup_device *); 27 static int qeth_l2_stop(struct net_device *); 28 static int qeth_l2_send_delmac(struct qeth_card *, __u8 *); 29 static int qeth_l2_send_setdelmac(struct qeth_card *, __u8 *, 30 enum qeth_ipa_cmds); 31 static void qeth_l2_set_multicast_list(struct net_device *); 32 static int qeth_l2_recover(void *); 33 static void qeth_bridgeport_query_support(struct qeth_card *card); 34 static void qeth_bridge_state_change(struct qeth_card *card, 35 struct qeth_ipa_cmd *cmd); 36 static void qeth_bridge_host_event(struct qeth_card *card, 37 struct qeth_ipa_cmd *cmd); 38 39 static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 40 { 41 struct qeth_card *card = dev->ml_priv; 42 struct mii_ioctl_data *mii_data; 43 int rc = 0; 44 45 if (!card) 46 return -ENODEV; 47 48 if (!qeth_card_hw_is_reachable(card)) 49 return -ENODEV; 50 51 if (card->info.type == QETH_CARD_TYPE_OSN) 52 return -EPERM; 53 54 switch (cmd) { 55 case SIOC_QETH_ADP_SET_SNMP_CONTROL: 56 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); 57 break; 58 case SIOC_QETH_GET_CARD_TYPE: 59 if ((card->info.type == QETH_CARD_TYPE_OSD || 60 card->info.type == QETH_CARD_TYPE_OSM || 61 card->info.type == QETH_CARD_TYPE_OSX) && 62 !card->info.guestlan) 63 return 1; 64 return 0; 65 break; 66 case SIOCGMIIPHY: 67 mii_data = if_mii(rq); 68 mii_data->phy_id = 0; 69 break; 70 case SIOCGMIIREG: 71 mii_data = if_mii(rq); 72 if (mii_data->phy_id != 0) 73 rc = -EINVAL; 74 else 75 mii_data->val_out = qeth_mdio_read(dev, 76 mii_data->phy_id, mii_data->reg_num); 77 break; 78 case SIOC_QETH_QUERY_OAT: 79 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); 80 break; 81 default: 82 rc = -EOPNOTSUPP; 83 } 84 if (rc) 85 QETH_CARD_TEXT_(card, 2, "ioce%d", rc); 86 return rc; 87 } 88 89 static int qeth_l2_verify_dev(struct net_device *dev) 90 { 91 struct qeth_card *card; 92 unsigned long flags; 93 int rc = 0; 94 95 read_lock_irqsave(&qeth_core_card_list.rwlock, flags); 96 list_for_each_entry(card, &qeth_core_card_list.list, list) { 97 if (card->dev == dev) { 98 rc = QETH_REAL_CARD; 99 break; 100 } 101 } 102 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); 103 104 return rc; 105 } 106 107 static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) 108 { 109 struct qeth_card *card; 110 struct net_device *ndev; 111 __u16 temp_dev_no; 112 unsigned long flags; 113 struct ccw_dev_id read_devid; 114 115 ndev = NULL; 116 memcpy(&temp_dev_no, read_dev_no, 2); 117 read_lock_irqsave(&qeth_core_card_list.rwlock, flags); 118 list_for_each_entry(card, &qeth_core_card_list.list, list) { 119 ccw_device_get_id(CARD_RDEV(card), &read_devid); 120 if (read_devid.devno == temp_dev_no) { 121 ndev = card->dev; 122 break; 123 } 124 } 125 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); 126 return ndev; 127 } 128 129 static int qeth_setdel_makerc(struct qeth_card *card, int retcode) 130 { 131 int rc; 132 133 if (retcode) 134 QETH_CARD_TEXT_(card, 2, "err%04x", retcode); 135 switch (retcode) { 136 case IPA_RC_SUCCESS: 137 rc = 0; 138 break; 139 case IPA_RC_L2_UNSUPPORTED_CMD: 140 rc = -EOPNOTSUPP; 141 break; 142 case IPA_RC_L2_ADDR_TABLE_FULL: 143 rc = -ENOSPC; 144 break; 145 case IPA_RC_L2_DUP_MAC: 146 case IPA_RC_L2_DUP_LAYER3_MAC: 147 rc = -EEXIST; 148 break; 149 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: 150 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: 151 rc = -EPERM; 152 break; 153 case IPA_RC_L2_MAC_NOT_FOUND: 154 rc = -ENOENT; 155 break; 156 case -ENOMEM: 157 rc = -ENOMEM; 158 break; 159 default: 160 rc = -EIO; 161 break; 162 } 163 return rc; 164 } 165 166 static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) 167 { 168 int rc; 169 170 QETH_CARD_TEXT(card, 2, "L2Sgmac"); 171 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac, 172 IPA_CMD_SETGMAC)); 173 if (rc == -EEXIST) 174 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s\n", 175 mac, QETH_CARD_IFNAME(card)); 176 else if (rc) 177 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %d\n", 178 mac, QETH_CARD_IFNAME(card), rc); 179 return rc; 180 } 181 182 static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) 183 { 184 int rc; 185 186 QETH_CARD_TEXT(card, 2, "L2Dgmac"); 187 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac, 188 IPA_CMD_DELGMAC)); 189 if (rc) 190 QETH_DBF_MESSAGE(2, 191 "Could not delete group MAC %pM on %s: %d\n", 192 mac, QETH_CARD_IFNAME(card), rc); 193 return rc; 194 } 195 196 static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) 197 { 198 struct qeth_mc_mac *mc; 199 int rc; 200 201 mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); 202 203 if (!mc) 204 return; 205 206 memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); 207 mc->mc_addrlen = OSA_ADDR_LEN; 208 mc->is_vmac = vmac; 209 210 if (vmac) { 211 rc = qeth_setdel_makerc(card, 212 qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC)); 213 } else { 214 rc = qeth_setdel_makerc(card, 215 qeth_l2_send_setgroupmac(card, mac)); 216 } 217 218 if (!rc) 219 list_add_tail(&mc->list, &card->mc_list); 220 else 221 kfree(mc); 222 } 223 224 static void qeth_l2_del_all_mc(struct qeth_card *card, int del) 225 { 226 struct qeth_mc_mac *mc, *tmp; 227 228 spin_lock_bh(&card->mclock); 229 list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { 230 if (del) { 231 if (mc->is_vmac) 232 qeth_l2_send_setdelmac(card, mc->mc_addr, 233 IPA_CMD_DELVMAC); 234 else 235 qeth_l2_send_delgroupmac(card, mc->mc_addr); 236 } 237 list_del(&mc->list); 238 kfree(mc); 239 } 240 spin_unlock_bh(&card->mclock); 241 } 242 243 static inline int qeth_l2_get_cast_type(struct qeth_card *card, 244 struct sk_buff *skb) 245 { 246 if (card->info.type == QETH_CARD_TYPE_OSN) 247 return RTN_UNSPEC; 248 if (is_broadcast_ether_addr(skb->data)) 249 return RTN_BROADCAST; 250 if (is_multicast_ether_addr(skb->data)) 251 return RTN_MULTICAST; 252 return RTN_UNSPEC; 253 } 254 255 static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, 256 struct sk_buff *skb, int cast_type) 257 { 258 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); 259 260 memset(hdr, 0, sizeof(struct qeth_hdr)); 261 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; 262 263 /* set byte byte 3 to casting flags */ 264 if (cast_type == RTN_MULTICAST) 265 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; 266 else if (cast_type == RTN_BROADCAST) 267 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; 268 else 269 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; 270 271 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; 272 /* VSWITCH relies on the VLAN 273 * information to be present in 274 * the QDIO header */ 275 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { 276 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; 277 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); 278 } 279 } 280 281 static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, 282 struct qeth_reply *reply, unsigned long data) 283 { 284 struct qeth_ipa_cmd *cmd; 285 286 QETH_CARD_TEXT(card, 2, "L2sdvcb"); 287 cmd = (struct qeth_ipa_cmd *) data; 288 if (cmd->hdr.return_code) { 289 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " 290 "Continuing\n", cmd->data.setdelvlan.vlan_id, 291 QETH_CARD_IFNAME(card), cmd->hdr.return_code); 292 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); 293 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); 294 } 295 return 0; 296 } 297 298 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, 299 enum qeth_ipa_cmds ipacmd) 300 { 301 struct qeth_ipa_cmd *cmd; 302 struct qeth_cmd_buffer *iob; 303 304 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); 305 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 306 if (!iob) 307 return -ENOMEM; 308 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 309 cmd->data.setdelvlan.vlan_id = i; 310 return qeth_send_ipa_cmd(card, iob, 311 qeth_l2_send_setdelvlan_cb, NULL); 312 } 313 314 static void qeth_l2_process_vlans(struct qeth_card *card) 315 { 316 struct qeth_vlan_vid *id; 317 QETH_CARD_TEXT(card, 3, "L2prcvln"); 318 spin_lock_bh(&card->vlanlock); 319 list_for_each_entry(id, &card->vid_list, list) { 320 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); 321 } 322 spin_unlock_bh(&card->vlanlock); 323 } 324 325 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, 326 __be16 proto, u16 vid) 327 { 328 struct qeth_card *card = dev->ml_priv; 329 struct qeth_vlan_vid *id; 330 int rc; 331 332 QETH_CARD_TEXT_(card, 4, "aid:%d", vid); 333 if (!vid) 334 return 0; 335 if (card->info.type == QETH_CARD_TYPE_OSM) { 336 QETH_CARD_TEXT(card, 3, "aidOSM"); 337 return 0; 338 } 339 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 340 QETH_CARD_TEXT(card, 3, "aidREC"); 341 return 0; 342 } 343 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); 344 if (id) { 345 id->vid = vid; 346 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); 347 if (rc) { 348 kfree(id); 349 return rc; 350 } 351 spin_lock_bh(&card->vlanlock); 352 list_add_tail(&id->list, &card->vid_list); 353 spin_unlock_bh(&card->vlanlock); 354 } else { 355 return -ENOMEM; 356 } 357 return 0; 358 } 359 360 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, 361 __be16 proto, u16 vid) 362 { 363 struct qeth_vlan_vid *id, *tmpid = NULL; 364 struct qeth_card *card = dev->ml_priv; 365 int rc = 0; 366 367 QETH_CARD_TEXT_(card, 4, "kid:%d", vid); 368 if (card->info.type == QETH_CARD_TYPE_OSM) { 369 QETH_CARD_TEXT(card, 3, "kidOSM"); 370 return 0; 371 } 372 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 373 QETH_CARD_TEXT(card, 3, "kidREC"); 374 return 0; 375 } 376 spin_lock_bh(&card->vlanlock); 377 list_for_each_entry(id, &card->vid_list, list) { 378 if (id->vid == vid) { 379 list_del(&id->list); 380 tmpid = id; 381 break; 382 } 383 } 384 spin_unlock_bh(&card->vlanlock); 385 if (tmpid) { 386 rc = qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); 387 kfree(tmpid); 388 } 389 qeth_l2_set_multicast_list(card->dev); 390 return rc; 391 } 392 393 static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) 394 { 395 int rc = 0; 396 397 QETH_DBF_TEXT(SETUP , 2, "stopcard"); 398 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 399 400 qeth_set_allowed_threads(card, 0, 1); 401 if (card->read.state == CH_STATE_UP && 402 card->write.state == CH_STATE_UP && 403 (card->state == CARD_STATE_UP)) { 404 if (recovery_mode && 405 card->info.type != QETH_CARD_TYPE_OSN) { 406 qeth_l2_stop(card->dev); 407 } else { 408 rtnl_lock(); 409 dev_close(card->dev); 410 rtnl_unlock(); 411 } 412 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 413 card->state = CARD_STATE_SOFTSETUP; 414 } 415 if (card->state == CARD_STATE_SOFTSETUP) { 416 qeth_l2_del_all_mc(card, 0); 417 qeth_clear_ipacmd_list(card); 418 card->state = CARD_STATE_HARDSETUP; 419 } 420 if (card->state == CARD_STATE_HARDSETUP) { 421 qeth_qdio_clear_card(card, 0); 422 qeth_clear_qdio_buffers(card); 423 qeth_clear_working_pool_list(card); 424 card->state = CARD_STATE_DOWN; 425 } 426 if (card->state == CARD_STATE_DOWN) { 427 qeth_clear_cmd_buffers(&card->read); 428 qeth_clear_cmd_buffers(&card->write); 429 } 430 return rc; 431 } 432 433 static int qeth_l2_process_inbound_buffer(struct qeth_card *card, 434 int budget, int *done) 435 { 436 int work_done = 0; 437 struct sk_buff *skb; 438 struct qeth_hdr *hdr; 439 unsigned int len; 440 441 *done = 0; 442 WARN_ON_ONCE(!budget); 443 while (budget) { 444 skb = qeth_core_get_next_skb(card, 445 &card->qdio.in_q->bufs[card->rx.b_index], 446 &card->rx.b_element, &card->rx.e_offset, &hdr); 447 if (!skb) { 448 *done = 1; 449 break; 450 } 451 skb->dev = card->dev; 452 switch (hdr->hdr.l2.id) { 453 case QETH_HEADER_TYPE_LAYER2: 454 skb->pkt_type = PACKET_HOST; 455 skb->protocol = eth_type_trans(skb, skb->dev); 456 skb->ip_summed = CHECKSUM_NONE; 457 if (skb->protocol == htons(ETH_P_802_2)) 458 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; 459 len = skb->len; 460 netif_receive_skb(skb); 461 break; 462 case QETH_HEADER_TYPE_OSN: 463 if (card->info.type == QETH_CARD_TYPE_OSN) { 464 skb_push(skb, sizeof(struct qeth_hdr)); 465 skb_copy_to_linear_data(skb, hdr, 466 sizeof(struct qeth_hdr)); 467 len = skb->len; 468 card->osn_info.data_cb(skb); 469 break; 470 } 471 /* else unknown */ 472 default: 473 dev_kfree_skb_any(skb); 474 QETH_CARD_TEXT(card, 3, "inbunkno"); 475 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); 476 continue; 477 } 478 work_done++; 479 budget--; 480 card->stats.rx_packets++; 481 card->stats.rx_bytes += len; 482 } 483 return work_done; 484 } 485 486 static int qeth_l2_poll(struct napi_struct *napi, int budget) 487 { 488 struct qeth_card *card = container_of(napi, struct qeth_card, napi); 489 int work_done = 0; 490 struct qeth_qdio_buffer *buffer; 491 int done; 492 int new_budget = budget; 493 494 if (card->options.performance_stats) { 495 card->perf_stats.inbound_cnt++; 496 card->perf_stats.inbound_start_time = qeth_get_micros(); 497 } 498 499 while (1) { 500 if (!card->rx.b_count) { 501 card->rx.qdio_err = 0; 502 card->rx.b_count = qdio_get_next_buffers( 503 card->data.ccwdev, 0, &card->rx.b_index, 504 &card->rx.qdio_err); 505 if (card->rx.b_count <= 0) { 506 card->rx.b_count = 0; 507 break; 508 } 509 card->rx.b_element = 510 &card->qdio.in_q->bufs[card->rx.b_index] 511 .buffer->element[0]; 512 card->rx.e_offset = 0; 513 } 514 515 while (card->rx.b_count) { 516 buffer = &card->qdio.in_q->bufs[card->rx.b_index]; 517 if (!(card->rx.qdio_err && 518 qeth_check_qdio_errors(card, buffer->buffer, 519 card->rx.qdio_err, "qinerr"))) 520 work_done += qeth_l2_process_inbound_buffer( 521 card, new_budget, &done); 522 else 523 done = 1; 524 525 if (done) { 526 if (card->options.performance_stats) 527 card->perf_stats.bufs_rec++; 528 qeth_put_buffer_pool_entry(card, 529 buffer->pool_entry); 530 qeth_queue_input_buffer(card, card->rx.b_index); 531 card->rx.b_count--; 532 if (card->rx.b_count) { 533 card->rx.b_index = 534 (card->rx.b_index + 1) % 535 QDIO_MAX_BUFFERS_PER_Q; 536 card->rx.b_element = 537 &card->qdio.in_q 538 ->bufs[card->rx.b_index] 539 .buffer->element[0]; 540 card->rx.e_offset = 0; 541 } 542 } 543 544 if (work_done >= budget) 545 goto out; 546 else 547 new_budget = budget - work_done; 548 } 549 } 550 551 napi_complete(napi); 552 if (qdio_start_irq(card->data.ccwdev, 0)) 553 napi_schedule(&card->napi); 554 out: 555 if (card->options.performance_stats) 556 card->perf_stats.inbound_time += qeth_get_micros() - 557 card->perf_stats.inbound_start_time; 558 return work_done; 559 } 560 561 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, 562 enum qeth_ipa_cmds ipacmd) 563 { 564 struct qeth_ipa_cmd *cmd; 565 struct qeth_cmd_buffer *iob; 566 567 QETH_CARD_TEXT(card, 2, "L2sdmac"); 568 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 569 if (!iob) 570 return -ENOMEM; 571 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 572 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; 573 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); 574 return qeth_send_ipa_cmd(card, iob, NULL, NULL); 575 } 576 577 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) 578 { 579 int rc; 580 581 QETH_CARD_TEXT(card, 2, "L2Setmac"); 582 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac, 583 IPA_CMD_SETVMAC)); 584 if (rc == 0) { 585 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; 586 memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN); 587 dev_info(&card->gdev->dev, 588 "MAC address %pM successfully registered on device %s\n", 589 card->dev->dev_addr, card->dev->name); 590 } else { 591 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 592 switch (rc) { 593 case -EEXIST: 594 dev_warn(&card->gdev->dev, 595 "MAC address %pM already exists\n", mac); 596 break; 597 case -EPERM: 598 dev_warn(&card->gdev->dev, 599 "MAC address %pM is not authorized\n", mac); 600 break; 601 } 602 } 603 return rc; 604 } 605 606 static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) 607 { 608 int rc; 609 610 QETH_CARD_TEXT(card, 2, "L2Delmac"); 611 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) 612 return 0; 613 rc = qeth_setdel_makerc(card, qeth_l2_send_setdelmac(card, mac, 614 IPA_CMD_DELVMAC)); 615 if (rc == 0) 616 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 617 return rc; 618 } 619 620 static int qeth_l2_request_initial_mac(struct qeth_card *card) 621 { 622 int rc = 0; 623 char vendor_pre[] = {0x02, 0x00, 0x00}; 624 625 QETH_DBF_TEXT(SETUP, 2, "doL2init"); 626 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); 627 628 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { 629 rc = qeth_query_setadapterparms(card); 630 if (rc) { 631 QETH_DBF_MESSAGE(2, "could not query adapter " 632 "parameters on device %s: x%x\n", 633 CARD_BUS_ID(card), rc); 634 } 635 } 636 637 if (card->info.type == QETH_CARD_TYPE_IQD || 638 card->info.type == QETH_CARD_TYPE_OSM || 639 card->info.type == QETH_CARD_TYPE_OSX || 640 card->info.guestlan) { 641 rc = qeth_setadpparms_change_macaddr(card); 642 if (rc) { 643 QETH_DBF_MESSAGE(2, "couldn't get MAC address on " 644 "device %s: x%x\n", CARD_BUS_ID(card), rc); 645 QETH_DBF_TEXT_(SETUP, 2, "1err%04x", rc); 646 return rc; 647 } 648 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); 649 } else { 650 eth_random_addr(card->dev->dev_addr); 651 memcpy(card->dev->dev_addr, vendor_pre, 3); 652 } 653 return 0; 654 } 655 656 static int qeth_l2_set_mac_address(struct net_device *dev, void *p) 657 { 658 struct sockaddr *addr = p; 659 struct qeth_card *card = dev->ml_priv; 660 int rc = 0; 661 662 QETH_CARD_TEXT(card, 3, "setmac"); 663 664 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { 665 QETH_CARD_TEXT(card, 3, "setmcINV"); 666 return -EOPNOTSUPP; 667 } 668 669 if (card->info.type == QETH_CARD_TYPE_OSN || 670 card->info.type == QETH_CARD_TYPE_OSM || 671 card->info.type == QETH_CARD_TYPE_OSX) { 672 QETH_CARD_TEXT(card, 3, "setmcTYP"); 673 return -EOPNOTSUPP; 674 } 675 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); 676 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 677 QETH_CARD_TEXT(card, 3, "setmcREC"); 678 return -ERESTARTSYS; 679 } 680 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); 681 if (!rc || (rc == -ENOENT)) 682 rc = qeth_l2_send_setmac(card, addr->sa_data); 683 return rc ? -EINVAL : 0; 684 } 685 686 static void qeth_promisc_to_bridge(struct qeth_card *card) 687 { 688 struct net_device *dev = card->dev; 689 enum qeth_ipa_promisc_modes promisc_mode; 690 int role; 691 int rc; 692 693 QETH_CARD_TEXT(card, 3, "pmisc2br"); 694 695 if (!card->options.sbp.reflect_promisc) 696 return; 697 promisc_mode = (dev->flags & IFF_PROMISC) ? SET_PROMISC_MODE_ON 698 : SET_PROMISC_MODE_OFF; 699 if (promisc_mode == card->info.promisc_mode) 700 return; 701 702 if (promisc_mode == SET_PROMISC_MODE_ON) { 703 if (card->options.sbp.reflect_promisc_primary) 704 role = QETH_SBP_ROLE_PRIMARY; 705 else 706 role = QETH_SBP_ROLE_SECONDARY; 707 } else 708 role = QETH_SBP_ROLE_NONE; 709 710 rc = qeth_bridgeport_setrole(card, role); 711 QETH_DBF_TEXT_(SETUP, 2, "bpm%c%04x", 712 (promisc_mode == SET_PROMISC_MODE_ON) ? '+' : '-', rc); 713 if (!rc) { 714 card->options.sbp.role = role; 715 card->info.promisc_mode = promisc_mode; 716 } 717 } 718 719 static void qeth_l2_set_multicast_list(struct net_device *dev) 720 { 721 struct qeth_card *card = dev->ml_priv; 722 struct netdev_hw_addr *ha; 723 724 if (card->info.type == QETH_CARD_TYPE_OSN) 725 return ; 726 727 QETH_CARD_TEXT(card, 3, "setmulti"); 728 if (qeth_threads_running(card, QETH_RECOVER_THREAD) && 729 (card->state != CARD_STATE_UP)) 730 return; 731 qeth_l2_del_all_mc(card, 1); 732 spin_lock_bh(&card->mclock); 733 netdev_for_each_mc_addr(ha, dev) 734 qeth_l2_add_mc(card, ha->addr, 0); 735 736 netdev_for_each_uc_addr(ha, dev) 737 qeth_l2_add_mc(card, ha->addr, 1); 738 739 spin_unlock_bh(&card->mclock); 740 if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) 741 qeth_setadp_promisc_mode(card); 742 else 743 qeth_promisc_to_bridge(card); 744 } 745 746 static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 747 { 748 int rc; 749 struct qeth_hdr *hdr = NULL; 750 int elements = 0; 751 struct qeth_card *card = dev->ml_priv; 752 struct sk_buff *new_skb = skb; 753 int cast_type = qeth_l2_get_cast_type(card, skb); 754 struct qeth_qdio_out_q *queue; 755 int tx_bytes = skb->len; 756 int data_offset = -1; 757 int elements_needed = 0; 758 int hd_len = 0; 759 760 if (card->qdio.do_prio_queueing || (cast_type && 761 card->info.is_multicast_different)) 762 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb, 763 qeth_get_ip_version(skb), cast_type)]; 764 else 765 queue = card->qdio.out_qs[card->qdio.default_out_queue]; 766 767 if ((card->state != CARD_STATE_UP) || !card->lan_online) { 768 card->stats.tx_carrier_errors++; 769 goto tx_drop; 770 } 771 772 if ((card->info.type == QETH_CARD_TYPE_OSN) && 773 (skb->protocol == htons(ETH_P_IPV6))) 774 goto tx_drop; 775 776 if (card->options.performance_stats) { 777 card->perf_stats.outbound_cnt++; 778 card->perf_stats.outbound_start_time = qeth_get_micros(); 779 } 780 netif_stop_queue(dev); 781 782 if (card->info.type == QETH_CARD_TYPE_OSN) 783 hdr = (struct qeth_hdr *)skb->data; 784 else { 785 if (card->info.type == QETH_CARD_TYPE_IQD) { 786 new_skb = skb; 787 data_offset = ETH_HLEN; 788 hd_len = ETH_HLEN; 789 hdr = kmem_cache_alloc(qeth_core_header_cache, 790 GFP_ATOMIC); 791 if (!hdr) 792 goto tx_drop; 793 elements_needed++; 794 skb_reset_mac_header(new_skb); 795 qeth_l2_fill_header(card, hdr, new_skb, cast_type); 796 hdr->hdr.l2.pkt_length = new_skb->len; 797 memcpy(((char *)hdr) + sizeof(struct qeth_hdr), 798 skb_mac_header(new_skb), ETH_HLEN); 799 } else { 800 /* create a clone with writeable headroom */ 801 new_skb = skb_realloc_headroom(skb, 802 sizeof(struct qeth_hdr)); 803 if (!new_skb) 804 goto tx_drop; 805 hdr = (struct qeth_hdr *)skb_push(new_skb, 806 sizeof(struct qeth_hdr)); 807 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); 808 qeth_l2_fill_header(card, hdr, new_skb, cast_type); 809 } 810 } 811 812 elements = qeth_get_elements_no(card, new_skb, elements_needed); 813 if (!elements) { 814 if (data_offset >= 0) 815 kmem_cache_free(qeth_core_header_cache, hdr); 816 goto tx_drop; 817 } 818 819 if (card->info.type != QETH_CARD_TYPE_IQD) { 820 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, 821 sizeof(struct qeth_hdr_layer2))) 822 goto tx_drop; 823 rc = qeth_do_send_packet(card, queue, new_skb, hdr, 824 elements); 825 } else 826 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, 827 elements, data_offset, hd_len); 828 if (!rc) { 829 card->stats.tx_packets++; 830 card->stats.tx_bytes += tx_bytes; 831 if (new_skb != skb) 832 dev_kfree_skb_any(skb); 833 rc = NETDEV_TX_OK; 834 } else { 835 if (data_offset >= 0) 836 kmem_cache_free(qeth_core_header_cache, hdr); 837 838 if (rc == -EBUSY) { 839 if (new_skb != skb) 840 dev_kfree_skb_any(new_skb); 841 return NETDEV_TX_BUSY; 842 } else 843 goto tx_drop; 844 } 845 846 netif_wake_queue(dev); 847 if (card->options.performance_stats) 848 card->perf_stats.outbound_time += qeth_get_micros() - 849 card->perf_stats.outbound_start_time; 850 return rc; 851 852 tx_drop: 853 card->stats.tx_dropped++; 854 card->stats.tx_errors++; 855 if ((new_skb != skb) && new_skb) 856 dev_kfree_skb_any(new_skb); 857 dev_kfree_skb_any(skb); 858 netif_wake_queue(dev); 859 return NETDEV_TX_OK; 860 } 861 862 static int __qeth_l2_open(struct net_device *dev) 863 { 864 struct qeth_card *card = dev->ml_priv; 865 int rc = 0; 866 867 QETH_CARD_TEXT(card, 4, "qethopen"); 868 if (card->state == CARD_STATE_UP) 869 return rc; 870 if (card->state != CARD_STATE_SOFTSETUP) 871 return -ENODEV; 872 873 if ((card->info.type != QETH_CARD_TYPE_OSN) && 874 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { 875 QETH_CARD_TEXT(card, 4, "nomacadr"); 876 return -EPERM; 877 } 878 card->data.state = CH_STATE_UP; 879 card->state = CARD_STATE_UP; 880 netif_start_queue(dev); 881 882 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { 883 napi_enable(&card->napi); 884 napi_schedule(&card->napi); 885 } else 886 rc = -EIO; 887 return rc; 888 } 889 890 static int qeth_l2_open(struct net_device *dev) 891 { 892 struct qeth_card *card = dev->ml_priv; 893 894 QETH_CARD_TEXT(card, 5, "qethope_"); 895 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 896 QETH_CARD_TEXT(card, 3, "openREC"); 897 return -ERESTARTSYS; 898 } 899 return __qeth_l2_open(dev); 900 } 901 902 static int qeth_l2_stop(struct net_device *dev) 903 { 904 struct qeth_card *card = dev->ml_priv; 905 906 QETH_CARD_TEXT(card, 4, "qethstop"); 907 netif_tx_disable(dev); 908 if (card->state == CARD_STATE_UP) { 909 card->state = CARD_STATE_SOFTSETUP; 910 napi_disable(&card->napi); 911 } 912 return 0; 913 } 914 915 static int qeth_l2_probe_device(struct ccwgroup_device *gdev) 916 { 917 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 918 919 qeth_l2_create_device_attributes(&gdev->dev); 920 INIT_LIST_HEAD(&card->vid_list); 921 INIT_LIST_HEAD(&card->mc_list); 922 card->options.layer2 = 1; 923 card->info.hwtrap = 0; 924 return 0; 925 } 926 927 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) 928 { 929 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 930 931 qeth_l2_remove_device_attributes(&cgdev->dev); 932 qeth_set_allowed_threads(card, 0, 1); 933 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 934 935 if (cgdev->state == CCWGROUP_ONLINE) 936 qeth_l2_set_offline(cgdev); 937 938 if (card->dev) { 939 unregister_netdev(card->dev); 940 card->dev = NULL; 941 } 942 return; 943 } 944 945 static const struct ethtool_ops qeth_l2_ethtool_ops = { 946 .get_link = ethtool_op_get_link, 947 .get_strings = qeth_core_get_strings, 948 .get_ethtool_stats = qeth_core_get_ethtool_stats, 949 .get_sset_count = qeth_core_get_sset_count, 950 .get_drvinfo = qeth_core_get_drvinfo, 951 .get_settings = qeth_core_ethtool_get_settings, 952 }; 953 954 static const struct ethtool_ops qeth_l2_osn_ops = { 955 .get_strings = qeth_core_get_strings, 956 .get_ethtool_stats = qeth_core_get_ethtool_stats, 957 .get_sset_count = qeth_core_get_sset_count, 958 .get_drvinfo = qeth_core_get_drvinfo, 959 }; 960 961 static const struct net_device_ops qeth_l2_netdev_ops = { 962 .ndo_open = qeth_l2_open, 963 .ndo_stop = qeth_l2_stop, 964 .ndo_get_stats = qeth_get_stats, 965 .ndo_start_xmit = qeth_l2_hard_start_xmit, 966 .ndo_validate_addr = eth_validate_addr, 967 .ndo_set_rx_mode = qeth_l2_set_multicast_list, 968 .ndo_do_ioctl = qeth_l2_do_ioctl, 969 .ndo_set_mac_address = qeth_l2_set_mac_address, 970 .ndo_change_mtu = qeth_change_mtu, 971 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, 972 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, 973 .ndo_tx_timeout = qeth_tx_timeout, 974 }; 975 976 static int qeth_l2_setup_netdev(struct qeth_card *card) 977 { 978 switch (card->info.type) { 979 case QETH_CARD_TYPE_IQD: 980 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, 981 ether_setup); 982 break; 983 case QETH_CARD_TYPE_OSN: 984 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, 985 ether_setup); 986 card->dev->flags |= IFF_NOARP; 987 break; 988 default: 989 card->dev = alloc_etherdev(0); 990 } 991 992 if (!card->dev) 993 return -ENODEV; 994 995 card->dev->ml_priv = card; 996 card->dev->watchdog_timeo = QETH_TX_TIMEOUT; 997 card->dev->mtu = card->info.initial_mtu; 998 card->dev->netdev_ops = &qeth_l2_netdev_ops; 999 card->dev->ethtool_ops = 1000 (card->info.type != QETH_CARD_TYPE_OSN) ? 1001 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops; 1002 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; 1003 card->info.broadcast_capable = 1; 1004 qeth_l2_request_initial_mac(card); 1005 SET_NETDEV_DEV(card->dev, &card->gdev->dev); 1006 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); 1007 return register_netdev(card->dev); 1008 } 1009 1010 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) 1011 { 1012 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1013 int rc = 0; 1014 enum qeth_card_states recover_flag; 1015 1016 mutex_lock(&card->discipline_mutex); 1017 mutex_lock(&card->conf_mutex); 1018 QETH_DBF_TEXT(SETUP, 2, "setonlin"); 1019 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 1020 1021 recover_flag = card->state; 1022 rc = qeth_core_hardsetup_card(card); 1023 if (rc) { 1024 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc); 1025 rc = -ENODEV; 1026 goto out_remove; 1027 } 1028 qeth_bridgeport_query_support(card); 1029 if (card->options.sbp.supported_funcs) 1030 dev_info(&card->gdev->dev, 1031 "The device represents a Bridge Capable Port\n"); 1032 qeth_trace_features(card); 1033 1034 if (!card->dev && qeth_l2_setup_netdev(card)) { 1035 rc = -ENODEV; 1036 goto out_remove; 1037 } 1038 1039 if (card->info.type != QETH_CARD_TYPE_OSN) 1040 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); 1041 1042 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { 1043 if (card->info.hwtrap && 1044 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) 1045 card->info.hwtrap = 0; 1046 } else 1047 card->info.hwtrap = 0; 1048 1049 qeth_l2_setup_bridgeport_attrs(card); 1050 1051 card->state = CARD_STATE_HARDSETUP; 1052 memset(&card->rx, 0, sizeof(struct qeth_rx)); 1053 qeth_print_status_message(card); 1054 1055 /* softsetup */ 1056 QETH_DBF_TEXT(SETUP, 2, "softsetp"); 1057 1058 rc = qeth_send_startlan(card); 1059 if (rc) { 1060 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 1061 if (rc == 0xe080) { 1062 dev_warn(&card->gdev->dev, 1063 "The LAN is offline\n"); 1064 card->lan_online = 0; 1065 goto contin; 1066 } 1067 rc = -ENODEV; 1068 goto out_remove; 1069 } else 1070 card->lan_online = 1; 1071 1072 contin: 1073 if ((card->info.type == QETH_CARD_TYPE_OSD) || 1074 (card->info.type == QETH_CARD_TYPE_OSX)) { 1075 /* configure isolation level */ 1076 rc = qeth_set_access_ctrl_online(card, 0); 1077 if (rc) { 1078 rc = -ENODEV; 1079 goto out_remove; 1080 } 1081 } 1082 1083 if (card->info.type != QETH_CARD_TYPE_OSN && 1084 card->info.type != QETH_CARD_TYPE_OSM) 1085 qeth_l2_process_vlans(card); 1086 1087 netif_tx_disable(card->dev); 1088 1089 rc = qeth_init_qdio_queues(card); 1090 if (rc) { 1091 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 1092 rc = -ENODEV; 1093 goto out_remove; 1094 } 1095 card->state = CARD_STATE_SOFTSETUP; 1096 if (card->lan_online) 1097 netif_carrier_on(card->dev); 1098 else 1099 netif_carrier_off(card->dev); 1100 1101 qeth_set_allowed_threads(card, 0xffffffff, 0); 1102 if (recover_flag == CARD_STATE_RECOVER) { 1103 if (recovery_mode && 1104 card->info.type != QETH_CARD_TYPE_OSN) { 1105 __qeth_l2_open(card->dev); 1106 } else { 1107 rtnl_lock(); 1108 dev_open(card->dev); 1109 rtnl_unlock(); 1110 } 1111 /* this also sets saved unicast addresses */ 1112 qeth_l2_set_multicast_list(card->dev); 1113 } 1114 /* let user_space know that device is online */ 1115 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); 1116 mutex_unlock(&card->conf_mutex); 1117 mutex_unlock(&card->discipline_mutex); 1118 return 0; 1119 1120 out_remove: 1121 qeth_l2_stop_card(card, 0); 1122 ccw_device_set_offline(CARD_DDEV(card)); 1123 ccw_device_set_offline(CARD_WDEV(card)); 1124 ccw_device_set_offline(CARD_RDEV(card)); 1125 qdio_free(CARD_DDEV(card)); 1126 if (recover_flag == CARD_STATE_RECOVER) 1127 card->state = CARD_STATE_RECOVER; 1128 else 1129 card->state = CARD_STATE_DOWN; 1130 mutex_unlock(&card->conf_mutex); 1131 mutex_unlock(&card->discipline_mutex); 1132 return rc; 1133 } 1134 1135 static int qeth_l2_set_online(struct ccwgroup_device *gdev) 1136 { 1137 return __qeth_l2_set_online(gdev, 0); 1138 } 1139 1140 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, 1141 int recovery_mode) 1142 { 1143 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 1144 int rc = 0, rc2 = 0, rc3 = 0; 1145 enum qeth_card_states recover_flag; 1146 1147 mutex_lock(&card->discipline_mutex); 1148 mutex_lock(&card->conf_mutex); 1149 QETH_DBF_TEXT(SETUP, 3, "setoffl"); 1150 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); 1151 1152 if (card->dev && netif_carrier_ok(card->dev)) 1153 netif_carrier_off(card->dev); 1154 recover_flag = card->state; 1155 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { 1156 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1157 card->info.hwtrap = 1; 1158 } 1159 qeth_l2_stop_card(card, recovery_mode); 1160 rc = ccw_device_set_offline(CARD_DDEV(card)); 1161 rc2 = ccw_device_set_offline(CARD_WDEV(card)); 1162 rc3 = ccw_device_set_offline(CARD_RDEV(card)); 1163 if (!rc) 1164 rc = (rc2) ? rc2 : rc3; 1165 if (rc) 1166 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 1167 qdio_free(CARD_DDEV(card)); 1168 if (recover_flag == CARD_STATE_UP) 1169 card->state = CARD_STATE_RECOVER; 1170 /* let user_space know that device is offline */ 1171 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); 1172 mutex_unlock(&card->conf_mutex); 1173 mutex_unlock(&card->discipline_mutex); 1174 return 0; 1175 } 1176 1177 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) 1178 { 1179 return __qeth_l2_set_offline(cgdev, 0); 1180 } 1181 1182 static int qeth_l2_recover(void *ptr) 1183 { 1184 struct qeth_card *card; 1185 int rc = 0; 1186 1187 card = (struct qeth_card *) ptr; 1188 QETH_CARD_TEXT(card, 2, "recover1"); 1189 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) 1190 return 0; 1191 QETH_CARD_TEXT(card, 2, "recover2"); 1192 dev_warn(&card->gdev->dev, 1193 "A recovery process has been started for the device\n"); 1194 qeth_set_recovery_task(card); 1195 __qeth_l2_set_offline(card->gdev, 1); 1196 rc = __qeth_l2_set_online(card->gdev, 1); 1197 if (!rc) 1198 dev_info(&card->gdev->dev, 1199 "Device successfully recovered!\n"); 1200 else { 1201 qeth_close_dev(card); 1202 dev_warn(&card->gdev->dev, "The qeth device driver " 1203 "failed to recover an error on the device\n"); 1204 } 1205 qeth_clear_recovery_task(card); 1206 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 1207 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); 1208 return 0; 1209 } 1210 1211 static int __init qeth_l2_init(void) 1212 { 1213 pr_info("register layer 2 discipline\n"); 1214 return 0; 1215 } 1216 1217 static void __exit qeth_l2_exit(void) 1218 { 1219 pr_info("unregister layer 2 discipline\n"); 1220 } 1221 1222 static void qeth_l2_shutdown(struct ccwgroup_device *gdev) 1223 { 1224 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1225 qeth_set_allowed_threads(card, 0, 1); 1226 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) 1227 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1228 qeth_qdio_clear_card(card, 0); 1229 qeth_clear_qdio_buffers(card); 1230 qdio_free(CARD_DDEV(card)); 1231 } 1232 1233 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) 1234 { 1235 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1236 1237 if (card->dev) 1238 netif_device_detach(card->dev); 1239 qeth_set_allowed_threads(card, 0, 1); 1240 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 1241 if (gdev->state == CCWGROUP_OFFLINE) 1242 return 0; 1243 if (card->state == CARD_STATE_UP) { 1244 if (card->info.hwtrap) 1245 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1246 __qeth_l2_set_offline(card->gdev, 1); 1247 } else 1248 __qeth_l2_set_offline(card->gdev, 0); 1249 return 0; 1250 } 1251 1252 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) 1253 { 1254 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1255 int rc = 0; 1256 1257 if (gdev->state == CCWGROUP_OFFLINE) 1258 goto out; 1259 1260 if (card->state == CARD_STATE_RECOVER) { 1261 rc = __qeth_l2_set_online(card->gdev, 1); 1262 if (rc) { 1263 rtnl_lock(); 1264 dev_close(card->dev); 1265 rtnl_unlock(); 1266 } 1267 } else 1268 rc = __qeth_l2_set_online(card->gdev, 0); 1269 out: 1270 qeth_set_allowed_threads(card, 0xffffffff, 0); 1271 if (card->dev) 1272 netif_device_attach(card->dev); 1273 if (rc) 1274 dev_warn(&card->gdev->dev, "The qeth device driver " 1275 "failed to recover an error on the device\n"); 1276 return rc; 1277 } 1278 1279 /* Returns zero if the command is successfully "consumed" */ 1280 static int qeth_l2_control_event(struct qeth_card *card, 1281 struct qeth_ipa_cmd *cmd) 1282 { 1283 switch (cmd->hdr.command) { 1284 case IPA_CMD_SETBRIDGEPORT_OSA: 1285 case IPA_CMD_SETBRIDGEPORT_IQD: 1286 if (cmd->data.sbp.hdr.command_code == 1287 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { 1288 qeth_bridge_state_change(card, cmd); 1289 return 0; 1290 } else 1291 return 1; 1292 case IPA_CMD_ADDRESS_CHANGE_NOTIF: 1293 qeth_bridge_host_event(card, cmd); 1294 return 0; 1295 default: 1296 return 1; 1297 } 1298 } 1299 1300 struct qeth_discipline qeth_l2_discipline = { 1301 .start_poll = qeth_qdio_start_poll, 1302 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, 1303 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, 1304 .recover = qeth_l2_recover, 1305 .setup = qeth_l2_probe_device, 1306 .remove = qeth_l2_remove_device, 1307 .set_online = qeth_l2_set_online, 1308 .set_offline = qeth_l2_set_offline, 1309 .shutdown = qeth_l2_shutdown, 1310 .freeze = qeth_l2_pm_suspend, 1311 .thaw = qeth_l2_pm_resume, 1312 .restore = qeth_l2_pm_resume, 1313 .control_event_handler = qeth_l2_control_event, 1314 }; 1315 EXPORT_SYMBOL_GPL(qeth_l2_discipline); 1316 1317 static int qeth_osn_send_control_data(struct qeth_card *card, int len, 1318 struct qeth_cmd_buffer *iob) 1319 { 1320 unsigned long flags; 1321 int rc = 0; 1322 1323 QETH_CARD_TEXT(card, 5, "osndctrd"); 1324 1325 wait_event(card->wait_q, 1326 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); 1327 qeth_prepare_control_data(card, len, iob); 1328 QETH_CARD_TEXT(card, 6, "osnoirqp"); 1329 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); 1330 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, 1331 (addr_t) iob, 0, 0); 1332 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); 1333 if (rc) { 1334 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " 1335 "ccw_device_start rc = %i\n", rc); 1336 QETH_CARD_TEXT_(card, 2, " err%d", rc); 1337 qeth_release_buffer(iob->channel, iob); 1338 atomic_set(&card->write.irq_pending, 0); 1339 wake_up(&card->wait_q); 1340 } 1341 return rc; 1342 } 1343 1344 static int qeth_osn_send_ipa_cmd(struct qeth_card *card, 1345 struct qeth_cmd_buffer *iob, int data_len) 1346 { 1347 u16 s1, s2; 1348 1349 QETH_CARD_TEXT(card, 4, "osndipa"); 1350 1351 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); 1352 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); 1353 s2 = (u16)data_len; 1354 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 1355 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 1356 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 1357 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 1358 return qeth_osn_send_control_data(card, s1, iob); 1359 } 1360 1361 int qeth_osn_assist(struct net_device *dev, void *data, int data_len) 1362 { 1363 struct qeth_cmd_buffer *iob; 1364 struct qeth_card *card; 1365 int rc; 1366 1367 if (!dev) 1368 return -ENODEV; 1369 card = dev->ml_priv; 1370 if (!card) 1371 return -ENODEV; 1372 QETH_CARD_TEXT(card, 2, "osnsdmc"); 1373 if (!qeth_card_hw_is_reachable(card)) 1374 return -ENODEV; 1375 iob = qeth_wait_for_buffer(&card->write); 1376 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); 1377 rc = qeth_osn_send_ipa_cmd(card, iob, data_len); 1378 return rc; 1379 } 1380 EXPORT_SYMBOL(qeth_osn_assist); 1381 1382 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, 1383 int (*assist_cb)(struct net_device *, void *), 1384 int (*data_cb)(struct sk_buff *)) 1385 { 1386 struct qeth_card *card; 1387 1388 *dev = qeth_l2_netdev_by_devno(read_dev_no); 1389 if (*dev == NULL) 1390 return -ENODEV; 1391 card = (*dev)->ml_priv; 1392 if (!card) 1393 return -ENODEV; 1394 QETH_CARD_TEXT(card, 2, "osnreg"); 1395 if ((assist_cb == NULL) || (data_cb == NULL)) 1396 return -EINVAL; 1397 card->osn_info.assist_cb = assist_cb; 1398 card->osn_info.data_cb = data_cb; 1399 return 0; 1400 } 1401 EXPORT_SYMBOL(qeth_osn_register); 1402 1403 void qeth_osn_deregister(struct net_device *dev) 1404 { 1405 struct qeth_card *card; 1406 1407 if (!dev) 1408 return; 1409 card = dev->ml_priv; 1410 if (!card) 1411 return; 1412 QETH_CARD_TEXT(card, 2, "osndereg"); 1413 card->osn_info.assist_cb = NULL; 1414 card->osn_info.data_cb = NULL; 1415 return; 1416 } 1417 EXPORT_SYMBOL(qeth_osn_deregister); 1418 1419 /* SETBRIDGEPORT support, async notifications */ 1420 1421 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; 1422 1423 /** 1424 * qeth_bridge_emit_host_event() - bridgeport address change notification 1425 * @card: qeth_card structure pointer, for udev events. 1426 * @evtype: "normal" register/unregister, or abort, or reset. For abort 1427 * and reset token and addr_lnid are unused and may be NULL. 1428 * @code: event bitmask: high order bit 0x80 value 1 means removal of an 1429 * object, 0 - addition of an object. 1430 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. 1431 * @token: "network token" structure identifying physical address of the port. 1432 * @addr_lnid: pointer to structure with MAC address and VLAN ID. 1433 * 1434 * This function is called when registrations and deregistrations are 1435 * reported by the hardware, and also when notifications are enabled - 1436 * for all currently registered addresses. 1437 */ 1438 static void qeth_bridge_emit_host_event(struct qeth_card *card, 1439 enum qeth_an_event_type evtype, 1440 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid) 1441 { 1442 char str[7][32]; 1443 char *env[8]; 1444 int i = 0; 1445 1446 switch (evtype) { 1447 case anev_reg_unreg: 1448 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", 1449 (code & IPA_ADDR_CHANGE_CODE_REMOVAL) 1450 ? "deregister" : "register"); 1451 env[i] = str[i]; i++; 1452 if (code & IPA_ADDR_CHANGE_CODE_VLANID) { 1453 snprintf(str[i], sizeof(str[i]), "VLAN=%d", 1454 addr_lnid->lnid); 1455 env[i] = str[i]; i++; 1456 } 1457 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { 1458 snprintf(str[i], sizeof(str[i]), "MAC=%pM6", 1459 &addr_lnid->mac); 1460 env[i] = str[i]; i++; 1461 } 1462 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", 1463 token->cssid, token->ssid, token->devnum); 1464 env[i] = str[i]; i++; 1465 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); 1466 env[i] = str[i]; i++; 1467 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", 1468 token->chpid); 1469 env[i] = str[i]; i++; 1470 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); 1471 env[i] = str[i]; i++; 1472 break; 1473 case anev_abort: 1474 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); 1475 env[i] = str[i]; i++; 1476 break; 1477 case anev_reset: 1478 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); 1479 env[i] = str[i]; i++; 1480 break; 1481 } 1482 env[i] = NULL; 1483 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); 1484 } 1485 1486 struct qeth_bridge_state_data { 1487 struct work_struct worker; 1488 struct qeth_card *card; 1489 struct qeth_sbp_state_change qports; 1490 }; 1491 1492 static void qeth_bridge_state_change_worker(struct work_struct *work) 1493 { 1494 struct qeth_bridge_state_data *data = 1495 container_of(work, struct qeth_bridge_state_data, worker); 1496 /* We are only interested in the first entry - local port */ 1497 struct qeth_sbp_port_entry *entry = &data->qports.entry[0]; 1498 char env_locrem[32]; 1499 char env_role[32]; 1500 char env_state[32]; 1501 char *env[] = { 1502 env_locrem, 1503 env_role, 1504 env_state, 1505 NULL 1506 }; 1507 1508 /* Role should not change by itself, but if it did, */ 1509 /* information from the hardware is authoritative. */ 1510 mutex_lock(&data->card->conf_mutex); 1511 data->card->options.sbp.role = entry->role; 1512 mutex_unlock(&data->card->conf_mutex); 1513 1514 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); 1515 snprintf(env_role, sizeof(env_role), "ROLE=%s", 1516 (entry->role == QETH_SBP_ROLE_NONE) ? "none" : 1517 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : 1518 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : 1519 "<INVALID>"); 1520 snprintf(env_state, sizeof(env_state), "STATE=%s", 1521 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : 1522 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" : 1523 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" : 1524 "<INVALID>"); 1525 kobject_uevent_env(&data->card->gdev->dev.kobj, 1526 KOBJ_CHANGE, env); 1527 kfree(data); 1528 } 1529 1530 static void qeth_bridge_state_change(struct qeth_card *card, 1531 struct qeth_ipa_cmd *cmd) 1532 { 1533 struct qeth_sbp_state_change *qports = 1534 &cmd->data.sbp.data.state_change; 1535 struct qeth_bridge_state_data *data; 1536 int extrasize; 1537 1538 QETH_CARD_TEXT(card, 2, "brstchng"); 1539 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1540 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length); 1541 return; 1542 } 1543 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries; 1544 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize, 1545 GFP_ATOMIC); 1546 if (!data) { 1547 QETH_CARD_TEXT(card, 2, "BPSalloc"); 1548 return; 1549 } 1550 INIT_WORK(&data->worker, qeth_bridge_state_change_worker); 1551 data->card = card; 1552 memcpy(&data->qports, qports, 1553 sizeof(struct qeth_sbp_state_change) + extrasize); 1554 queue_work(qeth_wq, &data->worker); 1555 } 1556 1557 struct qeth_bridge_host_data { 1558 struct work_struct worker; 1559 struct qeth_card *card; 1560 struct qeth_ipacmd_addr_change hostevs; 1561 }; 1562 1563 static void qeth_bridge_host_event_worker(struct work_struct *work) 1564 { 1565 struct qeth_bridge_host_data *data = 1566 container_of(work, struct qeth_bridge_host_data, worker); 1567 int i; 1568 1569 if (data->hostevs.lost_event_mask) { 1570 dev_info(&data->card->gdev->dev, 1571 "Address notification from the Bridge Port stopped %s (%s)\n", 1572 data->card->dev->name, 1573 (data->hostevs.lost_event_mask == 0x01) 1574 ? "Overflow" 1575 : (data->hostevs.lost_event_mask == 0x02) 1576 ? "Bridge port state change" 1577 : "Unknown reason"); 1578 mutex_lock(&data->card->conf_mutex); 1579 data->card->options.sbp.hostnotification = 0; 1580 mutex_unlock(&data->card->conf_mutex); 1581 qeth_bridge_emit_host_event(data->card, anev_abort, 1582 0, NULL, NULL); 1583 } else 1584 for (i = 0; i < data->hostevs.num_entries; i++) { 1585 struct qeth_ipacmd_addr_change_entry *entry = 1586 &data->hostevs.entry[i]; 1587 qeth_bridge_emit_host_event(data->card, 1588 anev_reg_unreg, 1589 entry->change_code, 1590 &entry->token, &entry->addr_lnid); 1591 } 1592 kfree(data); 1593 } 1594 1595 static void qeth_bridge_host_event(struct qeth_card *card, 1596 struct qeth_ipa_cmd *cmd) 1597 { 1598 struct qeth_ipacmd_addr_change *hostevs = 1599 &cmd->data.addrchange; 1600 struct qeth_bridge_host_data *data; 1601 int extrasize; 1602 1603 QETH_CARD_TEXT(card, 2, "brhostev"); 1604 if (cmd->hdr.return_code != 0x0000) { 1605 if (cmd->hdr.return_code == 0x0010) { 1606 if (hostevs->lost_event_mask == 0x00) 1607 hostevs->lost_event_mask = 0xff; 1608 } else { 1609 QETH_CARD_TEXT_(card, 2, "BPHe%04x", 1610 cmd->hdr.return_code); 1611 return; 1612 } 1613 } 1614 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * 1615 hostevs->num_entries; 1616 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize, 1617 GFP_ATOMIC); 1618 if (!data) { 1619 QETH_CARD_TEXT(card, 2, "BPHalloc"); 1620 return; 1621 } 1622 INIT_WORK(&data->worker, qeth_bridge_host_event_worker); 1623 data->card = card; 1624 memcpy(&data->hostevs, hostevs, 1625 sizeof(struct qeth_ipacmd_addr_change) + extrasize); 1626 queue_work(qeth_wq, &data->worker); 1627 } 1628 1629 /* SETBRIDGEPORT support; sending commands */ 1630 1631 struct _qeth_sbp_cbctl { 1632 u16 ipa_rc; 1633 u16 cmd_rc; 1634 union { 1635 u32 supported; 1636 struct { 1637 enum qeth_sbp_roles *role; 1638 enum qeth_sbp_states *state; 1639 } qports; 1640 } data; 1641 }; 1642 1643 /** 1644 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes. 1645 * @card: qeth_card structure pointer, for debug messages. 1646 * @cbctl: state structure with hardware return codes. 1647 * @setcmd: IPA command code 1648 * 1649 * Returns negative errno-compatible error indication or 0 on success. 1650 */ 1651 static int qeth_bridgeport_makerc(struct qeth_card *card, 1652 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd) 1653 { 1654 int rc; 1655 int is_iqd = (card->info.type == QETH_CARD_TYPE_IQD); 1656 1657 if ((is_iqd && (cbctl->ipa_rc == IPA_RC_SUCCESS)) || 1658 (!is_iqd && (cbctl->ipa_rc == cbctl->cmd_rc))) 1659 switch (cbctl->cmd_rc) { 1660 case 0x0000: 1661 rc = 0; 1662 break; 1663 case 0x2B04: 1664 case 0x0004: 1665 rc = -EOPNOTSUPP; 1666 break; 1667 case 0x2B0C: 1668 case 0x000C: /* Not configured as bridge Port */ 1669 rc = -ENODEV; /* maybe not the best code here? */ 1670 dev_err(&card->gdev->dev, 1671 "The device is not configured as a Bridge Port\n"); 1672 break; 1673 case 0x2B14: 1674 case 0x0014: /* Another device is Primary */ 1675 switch (setcmd) { 1676 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: 1677 rc = -EEXIST; 1678 dev_err(&card->gdev->dev, 1679 "The LAN already has a primary Bridge Port\n"); 1680 break; 1681 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: 1682 rc = -EBUSY; 1683 dev_err(&card->gdev->dev, 1684 "The device is already a primary Bridge Port\n"); 1685 break; 1686 default: 1687 rc = -EIO; 1688 } 1689 break; 1690 case 0x2B18: 1691 case 0x0018: /* This device is currently Secondary */ 1692 rc = -EBUSY; 1693 dev_err(&card->gdev->dev, 1694 "The device is already a secondary Bridge Port\n"); 1695 break; 1696 case 0x2B1C: 1697 case 0x001C: /* Limit for Secondary devices reached */ 1698 rc = -EEXIST; 1699 dev_err(&card->gdev->dev, 1700 "The LAN cannot have more secondary Bridge Ports\n"); 1701 break; 1702 case 0x2B24: 1703 case 0x0024: /* This device is currently Primary */ 1704 rc = -EBUSY; 1705 dev_err(&card->gdev->dev, 1706 "The device is already a primary Bridge Port\n"); 1707 break; 1708 case 0x2B20: 1709 case 0x0020: /* Not authorized by zManager */ 1710 rc = -EACCES; 1711 dev_err(&card->gdev->dev, 1712 "The device is not authorized to be a Bridge Port\n"); 1713 break; 1714 default: 1715 rc = -EIO; 1716 } 1717 else 1718 switch (cbctl->ipa_rc) { 1719 case IPA_RC_NOTSUPP: 1720 rc = -EOPNOTSUPP; 1721 break; 1722 case IPA_RC_UNSUPPORTED_COMMAND: 1723 rc = -EOPNOTSUPP; 1724 break; 1725 default: 1726 rc = -EIO; 1727 } 1728 1729 if (rc) { 1730 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc); 1731 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc); 1732 } 1733 return rc; 1734 } 1735 1736 static inline int ipa_cmd_sbp(struct qeth_card *card) 1737 { 1738 return (card->info.type == QETH_CARD_TYPE_IQD) ? 1739 IPA_CMD_SETBRIDGEPORT_IQD : 1740 IPA_CMD_SETBRIDGEPORT_OSA; 1741 } 1742 1743 static int qeth_bridgeport_query_support_cb(struct qeth_card *card, 1744 struct qeth_reply *reply, unsigned long data) 1745 { 1746 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1747 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1748 QETH_CARD_TEXT(card, 2, "brqsupcb"); 1749 cbctl->ipa_rc = cmd->hdr.return_code; 1750 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1751 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) { 1752 cbctl->data.supported = 1753 cmd->data.sbp.data.query_cmds_supp.supported_cmds; 1754 } else { 1755 cbctl->data.supported = 0; 1756 } 1757 return 0; 1758 } 1759 1760 /** 1761 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. 1762 * @card: qeth_card structure pointer. 1763 * 1764 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card 1765 * strucutre: card->options.sbp.supported_funcs. 1766 */ 1767 static void qeth_bridgeport_query_support(struct qeth_card *card) 1768 { 1769 struct qeth_cmd_buffer *iob; 1770 struct qeth_ipa_cmd *cmd; 1771 struct _qeth_sbp_cbctl cbctl; 1772 1773 QETH_CARD_TEXT(card, 2, "brqsuppo"); 1774 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0); 1775 if (!iob) 1776 return; 1777 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1778 cmd->data.sbp.hdr.cmdlength = 1779 sizeof(struct qeth_ipacmd_sbp_hdr) + 1780 sizeof(struct qeth_sbp_query_cmds_supp); 1781 cmd->data.sbp.hdr.command_code = 1782 IPA_SBP_QUERY_COMMANDS_SUPPORTED; 1783 cmd->data.sbp.hdr.used_total = 1; 1784 cmd->data.sbp.hdr.seq_no = 1; 1785 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, 1786 (void *)&cbctl) || 1787 qeth_bridgeport_makerc(card, &cbctl, 1788 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) { 1789 /* non-zero makerc signifies failure, and produce messages */ 1790 card->options.sbp.role = QETH_SBP_ROLE_NONE; 1791 return; 1792 } 1793 card->options.sbp.supported_funcs = cbctl.data.supported; 1794 } 1795 1796 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, 1797 struct qeth_reply *reply, unsigned long data) 1798 { 1799 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1800 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports; 1801 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1802 1803 QETH_CARD_TEXT(card, 2, "brqprtcb"); 1804 cbctl->ipa_rc = cmd->hdr.return_code; 1805 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1806 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0)) 1807 return 0; 1808 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1809 cbctl->cmd_rc = 0xffff; 1810 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); 1811 return 0; 1812 } 1813 /* first entry contains the state of the local port */ 1814 if (qports->num_entries > 0) { 1815 if (cbctl->data.qports.role) 1816 *cbctl->data.qports.role = qports->entry[0].role; 1817 if (cbctl->data.qports.state) 1818 *cbctl->data.qports.state = qports->entry[0].state; 1819 } 1820 return 0; 1821 } 1822 1823 /** 1824 * qeth_bridgeport_query_ports() - query local bridgeport status. 1825 * @card: qeth_card structure pointer. 1826 * @role: Role of the port: 0-none, 1-primary, 2-secondary. 1827 * @state: State of the port: 0-inactive, 1-standby, 2-active. 1828 * 1829 * Returns negative errno-compatible error indication or 0 on success. 1830 * 1831 * 'role' and 'state' are not updated in case of hardware operation failure. 1832 */ 1833 int qeth_bridgeport_query_ports(struct qeth_card *card, 1834 enum qeth_sbp_roles *role, enum qeth_sbp_states *state) 1835 { 1836 int rc = 0; 1837 struct qeth_cmd_buffer *iob; 1838 struct qeth_ipa_cmd *cmd; 1839 struct _qeth_sbp_cbctl cbctl = { 1840 .data = { 1841 .qports = { 1842 .role = role, 1843 .state = state, 1844 }, 1845 }, 1846 }; 1847 1848 QETH_CARD_TEXT(card, 2, "brqports"); 1849 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) 1850 return -EOPNOTSUPP; 1851 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0); 1852 if (!iob) 1853 return -ENOMEM; 1854 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1855 cmd->data.sbp.hdr.cmdlength = 1856 sizeof(struct qeth_ipacmd_sbp_hdr); 1857 cmd->data.sbp.hdr.command_code = 1858 IPA_SBP_QUERY_BRIDGE_PORTS; 1859 cmd->data.sbp.hdr.used_total = 1; 1860 cmd->data.sbp.hdr.seq_no = 1; 1861 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, 1862 (void *)&cbctl); 1863 if (rc < 0) 1864 return rc; 1865 return qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS); 1866 } 1867 EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports); 1868 1869 static int qeth_bridgeport_set_cb(struct qeth_card *card, 1870 struct qeth_reply *reply, unsigned long data) 1871 { 1872 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 1873 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1874 QETH_CARD_TEXT(card, 2, "brsetrcb"); 1875 cbctl->ipa_rc = cmd->hdr.return_code; 1876 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1877 return 0; 1878 } 1879 1880 /** 1881 * qeth_bridgeport_setrole() - Assign primary role to the port. 1882 * @card: qeth_card structure pointer. 1883 * @role: Role to assign. 1884 * 1885 * Returns negative errno-compatible error indication or 0 on success. 1886 */ 1887 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) 1888 { 1889 int rc = 0; 1890 int cmdlength; 1891 struct qeth_cmd_buffer *iob; 1892 struct qeth_ipa_cmd *cmd; 1893 struct _qeth_sbp_cbctl cbctl; 1894 enum qeth_ipa_sbp_cmd setcmd; 1895 1896 QETH_CARD_TEXT(card, 2, "brsetrol"); 1897 switch (role) { 1898 case QETH_SBP_ROLE_NONE: 1899 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; 1900 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1901 sizeof(struct qeth_sbp_reset_role); 1902 break; 1903 case QETH_SBP_ROLE_PRIMARY: 1904 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; 1905 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1906 sizeof(struct qeth_sbp_set_primary); 1907 break; 1908 case QETH_SBP_ROLE_SECONDARY: 1909 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; 1910 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1911 sizeof(struct qeth_sbp_set_secondary); 1912 break; 1913 default: 1914 return -EINVAL; 1915 } 1916 if (!(card->options.sbp.supported_funcs & setcmd)) 1917 return -EOPNOTSUPP; 1918 iob = qeth_get_ipacmd_buffer(card, ipa_cmd_sbp(card), 0); 1919 if (!iob) 1920 return -ENOMEM; 1921 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1922 cmd->data.sbp.hdr.cmdlength = cmdlength; 1923 cmd->data.sbp.hdr.command_code = setcmd; 1924 cmd->data.sbp.hdr.used_total = 1; 1925 cmd->data.sbp.hdr.seq_no = 1; 1926 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, 1927 (void *)&cbctl); 1928 if (rc < 0) 1929 return rc; 1930 return qeth_bridgeport_makerc(card, &cbctl, setcmd); 1931 } 1932 1933 /** 1934 * qeth_anset_makerc() - derive "traditional" error from hardware codes. 1935 * @card: qeth_card structure pointer, for debug messages. 1936 * 1937 * Returns negative errno-compatible error indication or 0 on success. 1938 */ 1939 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response) 1940 { 1941 int rc; 1942 1943 if (pnso_rc == 0) 1944 switch (response) { 1945 case 0x0001: 1946 rc = 0; 1947 break; 1948 case 0x0004: 1949 case 0x0100: 1950 case 0x0106: 1951 rc = -EOPNOTSUPP; 1952 dev_err(&card->gdev->dev, 1953 "Setting address notification failed\n"); 1954 break; 1955 case 0x0107: 1956 rc = -EAGAIN; 1957 break; 1958 default: 1959 rc = -EIO; 1960 } 1961 else 1962 rc = -EIO; 1963 1964 if (rc) { 1965 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc); 1966 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response); 1967 } 1968 return rc; 1969 } 1970 1971 static void qeth_bridgeport_an_set_cb(void *priv, 1972 enum qdio_brinfo_entry_type type, void *entry) 1973 { 1974 struct qeth_card *card = (struct qeth_card *)priv; 1975 struct qdio_brinfo_entry_l2 *l2entry; 1976 u8 code; 1977 1978 if (type != l2_addr_lnid) { 1979 WARN_ON_ONCE(1); 1980 return; 1981 } 1982 1983 l2entry = (struct qdio_brinfo_entry_l2 *)entry; 1984 code = IPA_ADDR_CHANGE_CODE_MACADDR; 1985 if (l2entry->addr_lnid.lnid) 1986 code |= IPA_ADDR_CHANGE_CODE_VLANID; 1987 qeth_bridge_emit_host_event(card, anev_reg_unreg, code, 1988 (struct net_if_token *)&l2entry->nit, 1989 (struct mac_addr_lnid *)&l2entry->addr_lnid); 1990 } 1991 1992 /** 1993 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification 1994 * @card: qeth_card structure pointer. 1995 * @enable: 0 - disable, non-zero - enable notifications 1996 * 1997 * Returns negative errno-compatible error indication or 0 on success. 1998 * 1999 * On enable, emits a series of address notifications udev events for all 2000 * currently registered hosts. 2001 */ 2002 int qeth_bridgeport_an_set(struct qeth_card *card, int enable) 2003 { 2004 int rc; 2005 u16 response; 2006 struct ccw_device *ddev; 2007 struct subchannel_id schid; 2008 2009 if (!card) 2010 return -EINVAL; 2011 if (!card->options.sbp.supported_funcs) 2012 return -EOPNOTSUPP; 2013 ddev = CARD_DDEV(card); 2014 ccw_device_get_schid(ddev, &schid); 2015 2016 if (enable) { 2017 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); 2018 rc = qdio_pnso_brinfo(schid, 1, &response, 2019 qeth_bridgeport_an_set_cb, card); 2020 } else 2021 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL); 2022 return qeth_anset_makerc(card, rc, response); 2023 } 2024 EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set); 2025 2026 module_init(qeth_l2_init); 2027 module_exit(qeth_l2_exit); 2028 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 2029 MODULE_DESCRIPTION("qeth layer 2 discipline"); 2030 MODULE_LICENSE("GPL"); 2031