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 = -ENOSYS; 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_l2_set_multicast_list(struct net_device *dev) 687 { 688 struct qeth_card *card = dev->ml_priv; 689 struct netdev_hw_addr *ha; 690 691 if (card->info.type == QETH_CARD_TYPE_OSN) 692 return ; 693 694 QETH_CARD_TEXT(card, 3, "setmulti"); 695 if (qeth_threads_running(card, QETH_RECOVER_THREAD) && 696 (card->state != CARD_STATE_UP)) 697 return; 698 qeth_l2_del_all_mc(card, 1); 699 spin_lock_bh(&card->mclock); 700 netdev_for_each_mc_addr(ha, dev) 701 qeth_l2_add_mc(card, ha->addr, 0); 702 703 netdev_for_each_uc_addr(ha, dev) 704 qeth_l2_add_mc(card, ha->addr, 1); 705 706 spin_unlock_bh(&card->mclock); 707 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) 708 return; 709 qeth_setadp_promisc_mode(card); 710 } 711 712 static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 713 { 714 int rc; 715 struct qeth_hdr *hdr = NULL; 716 int elements = 0; 717 struct qeth_card *card = dev->ml_priv; 718 struct sk_buff *new_skb = skb; 719 int cast_type = qeth_l2_get_cast_type(card, skb); 720 struct qeth_qdio_out_q *queue; 721 int tx_bytes = skb->len; 722 int data_offset = -1; 723 int elements_needed = 0; 724 int hd_len = 0; 725 726 if (card->qdio.do_prio_queueing || (cast_type && 727 card->info.is_multicast_different)) 728 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb, 729 qeth_get_ip_version(skb), cast_type)]; 730 else 731 queue = card->qdio.out_qs[card->qdio.default_out_queue]; 732 733 if ((card->state != CARD_STATE_UP) || !card->lan_online) { 734 card->stats.tx_carrier_errors++; 735 goto tx_drop; 736 } 737 738 if ((card->info.type == QETH_CARD_TYPE_OSN) && 739 (skb->protocol == htons(ETH_P_IPV6))) 740 goto tx_drop; 741 742 if (card->options.performance_stats) { 743 card->perf_stats.outbound_cnt++; 744 card->perf_stats.outbound_start_time = qeth_get_micros(); 745 } 746 netif_stop_queue(dev); 747 748 if (card->info.type == QETH_CARD_TYPE_OSN) 749 hdr = (struct qeth_hdr *)skb->data; 750 else { 751 if (card->info.type == QETH_CARD_TYPE_IQD) { 752 new_skb = skb; 753 data_offset = ETH_HLEN; 754 hd_len = ETH_HLEN; 755 hdr = kmem_cache_alloc(qeth_core_header_cache, 756 GFP_ATOMIC); 757 if (!hdr) 758 goto tx_drop; 759 elements_needed++; 760 skb_reset_mac_header(new_skb); 761 qeth_l2_fill_header(card, hdr, new_skb, cast_type); 762 hdr->hdr.l2.pkt_length = new_skb->len; 763 memcpy(((char *)hdr) + sizeof(struct qeth_hdr), 764 skb_mac_header(new_skb), ETH_HLEN); 765 } else { 766 /* create a clone with writeable headroom */ 767 new_skb = skb_realloc_headroom(skb, 768 sizeof(struct qeth_hdr)); 769 if (!new_skb) 770 goto tx_drop; 771 hdr = (struct qeth_hdr *)skb_push(new_skb, 772 sizeof(struct qeth_hdr)); 773 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); 774 qeth_l2_fill_header(card, hdr, new_skb, cast_type); 775 } 776 } 777 778 elements = qeth_get_elements_no(card, new_skb, elements_needed); 779 if (!elements) { 780 if (data_offset >= 0) 781 kmem_cache_free(qeth_core_header_cache, hdr); 782 goto tx_drop; 783 } 784 785 if (card->info.type != QETH_CARD_TYPE_IQD) { 786 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, 787 sizeof(struct qeth_hdr_layer2))) 788 goto tx_drop; 789 rc = qeth_do_send_packet(card, queue, new_skb, hdr, 790 elements); 791 } else 792 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, 793 elements, data_offset, hd_len); 794 if (!rc) { 795 card->stats.tx_packets++; 796 card->stats.tx_bytes += tx_bytes; 797 if (new_skb != skb) 798 dev_kfree_skb_any(skb); 799 rc = NETDEV_TX_OK; 800 } else { 801 if (data_offset >= 0) 802 kmem_cache_free(qeth_core_header_cache, hdr); 803 804 if (rc == -EBUSY) { 805 if (new_skb != skb) 806 dev_kfree_skb_any(new_skb); 807 return NETDEV_TX_BUSY; 808 } else 809 goto tx_drop; 810 } 811 812 netif_wake_queue(dev); 813 if (card->options.performance_stats) 814 card->perf_stats.outbound_time += qeth_get_micros() - 815 card->perf_stats.outbound_start_time; 816 return rc; 817 818 tx_drop: 819 card->stats.tx_dropped++; 820 card->stats.tx_errors++; 821 if ((new_skb != skb) && new_skb) 822 dev_kfree_skb_any(new_skb); 823 dev_kfree_skb_any(skb); 824 netif_wake_queue(dev); 825 return NETDEV_TX_OK; 826 } 827 828 static int __qeth_l2_open(struct net_device *dev) 829 { 830 struct qeth_card *card = dev->ml_priv; 831 int rc = 0; 832 833 QETH_CARD_TEXT(card, 4, "qethopen"); 834 if (card->state == CARD_STATE_UP) 835 return rc; 836 if (card->state != CARD_STATE_SOFTSETUP) 837 return -ENODEV; 838 839 if ((card->info.type != QETH_CARD_TYPE_OSN) && 840 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { 841 QETH_CARD_TEXT(card, 4, "nomacadr"); 842 return -EPERM; 843 } 844 card->data.state = CH_STATE_UP; 845 card->state = CARD_STATE_UP; 846 netif_start_queue(dev); 847 848 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { 849 napi_enable(&card->napi); 850 napi_schedule(&card->napi); 851 } else 852 rc = -EIO; 853 return rc; 854 } 855 856 static int qeth_l2_open(struct net_device *dev) 857 { 858 struct qeth_card *card = dev->ml_priv; 859 860 QETH_CARD_TEXT(card, 5, "qethope_"); 861 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 862 QETH_CARD_TEXT(card, 3, "openREC"); 863 return -ERESTARTSYS; 864 } 865 return __qeth_l2_open(dev); 866 } 867 868 static int qeth_l2_stop(struct net_device *dev) 869 { 870 struct qeth_card *card = dev->ml_priv; 871 872 QETH_CARD_TEXT(card, 4, "qethstop"); 873 netif_tx_disable(dev); 874 if (card->state == CARD_STATE_UP) { 875 card->state = CARD_STATE_SOFTSETUP; 876 napi_disable(&card->napi); 877 } 878 return 0; 879 } 880 881 static int qeth_l2_probe_device(struct ccwgroup_device *gdev) 882 { 883 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 884 885 qeth_l2_create_device_attributes(&gdev->dev); 886 INIT_LIST_HEAD(&card->vid_list); 887 INIT_LIST_HEAD(&card->mc_list); 888 card->options.layer2 = 1; 889 card->info.hwtrap = 0; 890 return 0; 891 } 892 893 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) 894 { 895 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 896 897 qeth_l2_remove_device_attributes(&cgdev->dev); 898 qeth_set_allowed_threads(card, 0, 1); 899 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 900 901 if (cgdev->state == CCWGROUP_ONLINE) 902 qeth_l2_set_offline(cgdev); 903 904 if (card->dev) { 905 unregister_netdev(card->dev); 906 card->dev = NULL; 907 } 908 return; 909 } 910 911 static const struct ethtool_ops qeth_l2_ethtool_ops = { 912 .get_link = ethtool_op_get_link, 913 .get_strings = qeth_core_get_strings, 914 .get_ethtool_stats = qeth_core_get_ethtool_stats, 915 .get_sset_count = qeth_core_get_sset_count, 916 .get_drvinfo = qeth_core_get_drvinfo, 917 .get_settings = qeth_core_ethtool_get_settings, 918 }; 919 920 static const struct ethtool_ops qeth_l2_osn_ops = { 921 .get_strings = qeth_core_get_strings, 922 .get_ethtool_stats = qeth_core_get_ethtool_stats, 923 .get_sset_count = qeth_core_get_sset_count, 924 .get_drvinfo = qeth_core_get_drvinfo, 925 }; 926 927 static const struct net_device_ops qeth_l2_netdev_ops = { 928 .ndo_open = qeth_l2_open, 929 .ndo_stop = qeth_l2_stop, 930 .ndo_get_stats = qeth_get_stats, 931 .ndo_start_xmit = qeth_l2_hard_start_xmit, 932 .ndo_validate_addr = eth_validate_addr, 933 .ndo_set_rx_mode = qeth_l2_set_multicast_list, 934 .ndo_do_ioctl = qeth_l2_do_ioctl, 935 .ndo_set_mac_address = qeth_l2_set_mac_address, 936 .ndo_change_mtu = qeth_change_mtu, 937 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, 938 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, 939 .ndo_tx_timeout = qeth_tx_timeout, 940 }; 941 942 static int qeth_l2_setup_netdev(struct qeth_card *card) 943 { 944 switch (card->info.type) { 945 case QETH_CARD_TYPE_IQD: 946 card->dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, 947 ether_setup); 948 break; 949 case QETH_CARD_TYPE_OSN: 950 card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, 951 ether_setup); 952 card->dev->flags |= IFF_NOARP; 953 break; 954 default: 955 card->dev = alloc_etherdev(0); 956 } 957 958 if (!card->dev) 959 return -ENODEV; 960 961 card->dev->ml_priv = card; 962 card->dev->watchdog_timeo = QETH_TX_TIMEOUT; 963 card->dev->mtu = card->info.initial_mtu; 964 card->dev->netdev_ops = &qeth_l2_netdev_ops; 965 card->dev->ethtool_ops = 966 (card->info.type != QETH_CARD_TYPE_OSN) ? 967 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops; 968 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; 969 card->info.broadcast_capable = 1; 970 qeth_l2_request_initial_mac(card); 971 SET_NETDEV_DEV(card->dev, &card->gdev->dev); 972 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); 973 return register_netdev(card->dev); 974 } 975 976 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) 977 { 978 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 979 int rc = 0; 980 enum qeth_card_states recover_flag; 981 982 mutex_lock(&card->discipline_mutex); 983 mutex_lock(&card->conf_mutex); 984 QETH_DBF_TEXT(SETUP, 2, "setonlin"); 985 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 986 987 recover_flag = card->state; 988 rc = qeth_core_hardsetup_card(card); 989 if (rc) { 990 QETH_DBF_TEXT_(SETUP, 2, "2err%04x", rc); 991 rc = -ENODEV; 992 goto out_remove; 993 } 994 qeth_bridgeport_query_support(card); 995 if (card->options.sbp.supported_funcs) 996 dev_info(&card->gdev->dev, 997 "The device represents a HiperSockets Bridge Capable Port\n"); 998 qeth_trace_features(card); 999 1000 if (!card->dev && qeth_l2_setup_netdev(card)) { 1001 rc = -ENODEV; 1002 goto out_remove; 1003 } 1004 1005 if (card->info.type != QETH_CARD_TYPE_OSN) 1006 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); 1007 1008 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { 1009 if (card->info.hwtrap && 1010 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) 1011 card->info.hwtrap = 0; 1012 } else 1013 card->info.hwtrap = 0; 1014 1015 qeth_l2_setup_bridgeport_attrs(card); 1016 1017 card->state = CARD_STATE_HARDSETUP; 1018 memset(&card->rx, 0, sizeof(struct qeth_rx)); 1019 qeth_print_status_message(card); 1020 1021 /* softsetup */ 1022 QETH_DBF_TEXT(SETUP, 2, "softsetp"); 1023 1024 rc = qeth_send_startlan(card); 1025 if (rc) { 1026 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 1027 if (rc == 0xe080) { 1028 dev_warn(&card->gdev->dev, 1029 "The LAN is offline\n"); 1030 card->lan_online = 0; 1031 goto contin; 1032 } 1033 rc = -ENODEV; 1034 goto out_remove; 1035 } else 1036 card->lan_online = 1; 1037 1038 contin: 1039 if ((card->info.type == QETH_CARD_TYPE_OSD) || 1040 (card->info.type == QETH_CARD_TYPE_OSX)) { 1041 /* configure isolation level */ 1042 rc = qeth_set_access_ctrl_online(card, 0); 1043 if (rc) { 1044 rc = -ENODEV; 1045 goto out_remove; 1046 } 1047 } 1048 1049 if (card->info.type != QETH_CARD_TYPE_OSN && 1050 card->info.type != QETH_CARD_TYPE_OSM) 1051 qeth_l2_process_vlans(card); 1052 1053 netif_tx_disable(card->dev); 1054 1055 rc = qeth_init_qdio_queues(card); 1056 if (rc) { 1057 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 1058 rc = -ENODEV; 1059 goto out_remove; 1060 } 1061 card->state = CARD_STATE_SOFTSETUP; 1062 if (card->lan_online) 1063 netif_carrier_on(card->dev); 1064 else 1065 netif_carrier_off(card->dev); 1066 1067 qeth_set_allowed_threads(card, 0xffffffff, 0); 1068 if (recover_flag == CARD_STATE_RECOVER) { 1069 if (recovery_mode && 1070 card->info.type != QETH_CARD_TYPE_OSN) { 1071 __qeth_l2_open(card->dev); 1072 } else { 1073 rtnl_lock(); 1074 dev_open(card->dev); 1075 rtnl_unlock(); 1076 } 1077 /* this also sets saved unicast addresses */ 1078 qeth_l2_set_multicast_list(card->dev); 1079 } 1080 /* let user_space know that device is online */ 1081 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); 1082 mutex_unlock(&card->conf_mutex); 1083 mutex_unlock(&card->discipline_mutex); 1084 return 0; 1085 1086 out_remove: 1087 qeth_l2_stop_card(card, 0); 1088 ccw_device_set_offline(CARD_DDEV(card)); 1089 ccw_device_set_offline(CARD_WDEV(card)); 1090 ccw_device_set_offline(CARD_RDEV(card)); 1091 qdio_free(CARD_DDEV(card)); 1092 if (recover_flag == CARD_STATE_RECOVER) 1093 card->state = CARD_STATE_RECOVER; 1094 else 1095 card->state = CARD_STATE_DOWN; 1096 mutex_unlock(&card->conf_mutex); 1097 mutex_unlock(&card->discipline_mutex); 1098 return rc; 1099 } 1100 1101 static int qeth_l2_set_online(struct ccwgroup_device *gdev) 1102 { 1103 return __qeth_l2_set_online(gdev, 0); 1104 } 1105 1106 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, 1107 int recovery_mode) 1108 { 1109 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 1110 int rc = 0, rc2 = 0, rc3 = 0; 1111 enum qeth_card_states recover_flag; 1112 1113 mutex_lock(&card->discipline_mutex); 1114 mutex_lock(&card->conf_mutex); 1115 QETH_DBF_TEXT(SETUP, 3, "setoffl"); 1116 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); 1117 1118 if (card->dev && netif_carrier_ok(card->dev)) 1119 netif_carrier_off(card->dev); 1120 recover_flag = card->state; 1121 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { 1122 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1123 card->info.hwtrap = 1; 1124 } 1125 qeth_l2_stop_card(card, recovery_mode); 1126 rc = ccw_device_set_offline(CARD_DDEV(card)); 1127 rc2 = ccw_device_set_offline(CARD_WDEV(card)); 1128 rc3 = ccw_device_set_offline(CARD_RDEV(card)); 1129 if (!rc) 1130 rc = (rc2) ? rc2 : rc3; 1131 if (rc) 1132 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 1133 qdio_free(CARD_DDEV(card)); 1134 if (recover_flag == CARD_STATE_UP) 1135 card->state = CARD_STATE_RECOVER; 1136 /* let user_space know that device is offline */ 1137 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); 1138 mutex_unlock(&card->conf_mutex); 1139 mutex_unlock(&card->discipline_mutex); 1140 return 0; 1141 } 1142 1143 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) 1144 { 1145 return __qeth_l2_set_offline(cgdev, 0); 1146 } 1147 1148 static int qeth_l2_recover(void *ptr) 1149 { 1150 struct qeth_card *card; 1151 int rc = 0; 1152 1153 card = (struct qeth_card *) ptr; 1154 QETH_CARD_TEXT(card, 2, "recover1"); 1155 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) 1156 return 0; 1157 QETH_CARD_TEXT(card, 2, "recover2"); 1158 dev_warn(&card->gdev->dev, 1159 "A recovery process has been started for the device\n"); 1160 qeth_set_recovery_task(card); 1161 __qeth_l2_set_offline(card->gdev, 1); 1162 rc = __qeth_l2_set_online(card->gdev, 1); 1163 if (!rc) 1164 dev_info(&card->gdev->dev, 1165 "Device successfully recovered!\n"); 1166 else { 1167 qeth_close_dev(card); 1168 dev_warn(&card->gdev->dev, "The qeth device driver " 1169 "failed to recover an error on the device\n"); 1170 } 1171 qeth_clear_recovery_task(card); 1172 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 1173 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); 1174 return 0; 1175 } 1176 1177 static int __init qeth_l2_init(void) 1178 { 1179 pr_info("register layer 2 discipline\n"); 1180 return 0; 1181 } 1182 1183 static void __exit qeth_l2_exit(void) 1184 { 1185 pr_info("unregister layer 2 discipline\n"); 1186 } 1187 1188 static void qeth_l2_shutdown(struct ccwgroup_device *gdev) 1189 { 1190 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1191 qeth_set_allowed_threads(card, 0, 1); 1192 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) 1193 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1194 qeth_qdio_clear_card(card, 0); 1195 qeth_clear_qdio_buffers(card); 1196 qdio_free(CARD_DDEV(card)); 1197 } 1198 1199 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) 1200 { 1201 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1202 1203 if (card->dev) 1204 netif_device_detach(card->dev); 1205 qeth_set_allowed_threads(card, 0, 1); 1206 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 1207 if (gdev->state == CCWGROUP_OFFLINE) 1208 return 0; 1209 if (card->state == CARD_STATE_UP) { 1210 if (card->info.hwtrap) 1211 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1212 __qeth_l2_set_offline(card->gdev, 1); 1213 } else 1214 __qeth_l2_set_offline(card->gdev, 0); 1215 return 0; 1216 } 1217 1218 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) 1219 { 1220 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1221 int rc = 0; 1222 1223 if (gdev->state == CCWGROUP_OFFLINE) 1224 goto out; 1225 1226 if (card->state == CARD_STATE_RECOVER) { 1227 rc = __qeth_l2_set_online(card->gdev, 1); 1228 if (rc) { 1229 rtnl_lock(); 1230 dev_close(card->dev); 1231 rtnl_unlock(); 1232 } 1233 } else 1234 rc = __qeth_l2_set_online(card->gdev, 0); 1235 out: 1236 qeth_set_allowed_threads(card, 0xffffffff, 0); 1237 if (card->dev) 1238 netif_device_attach(card->dev); 1239 if (rc) 1240 dev_warn(&card->gdev->dev, "The qeth device driver " 1241 "failed to recover an error on the device\n"); 1242 return rc; 1243 } 1244 1245 /* Returns zero if the command is successfully "consumed" */ 1246 static int qeth_l2_control_event(struct qeth_card *card, 1247 struct qeth_ipa_cmd *cmd) 1248 { 1249 switch (cmd->hdr.command) { 1250 case IPA_CMD_SETBRIDGEPORT: 1251 if (cmd->data.sbp.hdr.command_code == 1252 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { 1253 qeth_bridge_state_change(card, cmd); 1254 return 0; 1255 } else 1256 return 1; 1257 case IPA_CMD_ADDRESS_CHANGE_NOTIF: 1258 qeth_bridge_host_event(card, cmd); 1259 return 0; 1260 default: 1261 return 1; 1262 } 1263 } 1264 1265 struct qeth_discipline qeth_l2_discipline = { 1266 .start_poll = qeth_qdio_start_poll, 1267 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, 1268 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, 1269 .recover = qeth_l2_recover, 1270 .setup = qeth_l2_probe_device, 1271 .remove = qeth_l2_remove_device, 1272 .set_online = qeth_l2_set_online, 1273 .set_offline = qeth_l2_set_offline, 1274 .shutdown = qeth_l2_shutdown, 1275 .freeze = qeth_l2_pm_suspend, 1276 .thaw = qeth_l2_pm_resume, 1277 .restore = qeth_l2_pm_resume, 1278 .control_event_handler = qeth_l2_control_event, 1279 }; 1280 EXPORT_SYMBOL_GPL(qeth_l2_discipline); 1281 1282 static int qeth_osn_send_control_data(struct qeth_card *card, int len, 1283 struct qeth_cmd_buffer *iob) 1284 { 1285 unsigned long flags; 1286 int rc = 0; 1287 1288 QETH_CARD_TEXT(card, 5, "osndctrd"); 1289 1290 wait_event(card->wait_q, 1291 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); 1292 qeth_prepare_control_data(card, len, iob); 1293 QETH_CARD_TEXT(card, 6, "osnoirqp"); 1294 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); 1295 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, 1296 (addr_t) iob, 0, 0); 1297 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); 1298 if (rc) { 1299 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " 1300 "ccw_device_start rc = %i\n", rc); 1301 QETH_CARD_TEXT_(card, 2, " err%d", rc); 1302 qeth_release_buffer(iob->channel, iob); 1303 atomic_set(&card->write.irq_pending, 0); 1304 wake_up(&card->wait_q); 1305 } 1306 return rc; 1307 } 1308 1309 static int qeth_osn_send_ipa_cmd(struct qeth_card *card, 1310 struct qeth_cmd_buffer *iob, int data_len) 1311 { 1312 u16 s1, s2; 1313 1314 QETH_CARD_TEXT(card, 4, "osndipa"); 1315 1316 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); 1317 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); 1318 s2 = (u16)data_len; 1319 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 1320 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 1321 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 1322 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 1323 return qeth_osn_send_control_data(card, s1, iob); 1324 } 1325 1326 int qeth_osn_assist(struct net_device *dev, void *data, int data_len) 1327 { 1328 struct qeth_cmd_buffer *iob; 1329 struct qeth_card *card; 1330 int rc; 1331 1332 if (!dev) 1333 return -ENODEV; 1334 card = dev->ml_priv; 1335 if (!card) 1336 return -ENODEV; 1337 QETH_CARD_TEXT(card, 2, "osnsdmc"); 1338 if (!qeth_card_hw_is_reachable(card)) 1339 return -ENODEV; 1340 iob = qeth_wait_for_buffer(&card->write); 1341 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); 1342 rc = qeth_osn_send_ipa_cmd(card, iob, data_len); 1343 return rc; 1344 } 1345 EXPORT_SYMBOL(qeth_osn_assist); 1346 1347 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, 1348 int (*assist_cb)(struct net_device *, void *), 1349 int (*data_cb)(struct sk_buff *)) 1350 { 1351 struct qeth_card *card; 1352 1353 *dev = qeth_l2_netdev_by_devno(read_dev_no); 1354 if (*dev == NULL) 1355 return -ENODEV; 1356 card = (*dev)->ml_priv; 1357 if (!card) 1358 return -ENODEV; 1359 QETH_CARD_TEXT(card, 2, "osnreg"); 1360 if ((assist_cb == NULL) || (data_cb == NULL)) 1361 return -EINVAL; 1362 card->osn_info.assist_cb = assist_cb; 1363 card->osn_info.data_cb = data_cb; 1364 return 0; 1365 } 1366 EXPORT_SYMBOL(qeth_osn_register); 1367 1368 void qeth_osn_deregister(struct net_device *dev) 1369 { 1370 struct qeth_card *card; 1371 1372 if (!dev) 1373 return; 1374 card = dev->ml_priv; 1375 if (!card) 1376 return; 1377 QETH_CARD_TEXT(card, 2, "osndereg"); 1378 card->osn_info.assist_cb = NULL; 1379 card->osn_info.data_cb = NULL; 1380 return; 1381 } 1382 EXPORT_SYMBOL(qeth_osn_deregister); 1383 1384 /* SETBRIDGEPORT support, async notifications */ 1385 1386 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; 1387 1388 /** 1389 * qeth_bridge_emit_host_event() - bridgeport address change notification 1390 * @card: qeth_card structure pointer, for udev events. 1391 * @evtype: "normal" register/unregister, or abort, or reset. For abort 1392 * and reset token and addr_lnid are unused and may be NULL. 1393 * @code: event bitmask: high order bit 0x80 value 1 means removal of an 1394 * object, 0 - addition of an object. 1395 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. 1396 * @token: "network token" structure identifying physical address of the port. 1397 * @addr_lnid: pointer to structure with MAC address and VLAN ID. 1398 * 1399 * This function is called when registrations and deregistrations are 1400 * reported by the hardware, and also when notifications are enabled - 1401 * for all currently registered addresses. 1402 */ 1403 static void qeth_bridge_emit_host_event(struct qeth_card *card, 1404 enum qeth_an_event_type evtype, 1405 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid) 1406 { 1407 char str[7][32]; 1408 char *env[8]; 1409 int i = 0; 1410 1411 switch (evtype) { 1412 case anev_reg_unreg: 1413 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", 1414 (code & IPA_ADDR_CHANGE_CODE_REMOVAL) 1415 ? "deregister" : "register"); 1416 env[i] = str[i]; i++; 1417 if (code & IPA_ADDR_CHANGE_CODE_VLANID) { 1418 snprintf(str[i], sizeof(str[i]), "VLAN=%d", 1419 addr_lnid->lnid); 1420 env[i] = str[i]; i++; 1421 } 1422 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { 1423 snprintf(str[i], sizeof(str[i]), "MAC=%pM6", 1424 &addr_lnid->mac); 1425 env[i] = str[i]; i++; 1426 } 1427 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", 1428 token->cssid, token->ssid, token->devnum); 1429 env[i] = str[i]; i++; 1430 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); 1431 env[i] = str[i]; i++; 1432 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", 1433 token->chpid); 1434 env[i] = str[i]; i++; 1435 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); 1436 env[i] = str[i]; i++; 1437 break; 1438 case anev_abort: 1439 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); 1440 env[i] = str[i]; i++; 1441 break; 1442 case anev_reset: 1443 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); 1444 env[i] = str[i]; i++; 1445 break; 1446 } 1447 env[i] = NULL; 1448 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); 1449 } 1450 1451 struct qeth_bridge_state_data { 1452 struct work_struct worker; 1453 struct qeth_card *card; 1454 struct qeth_sbp_state_change qports; 1455 }; 1456 1457 static void qeth_bridge_state_change_worker(struct work_struct *work) 1458 { 1459 struct qeth_bridge_state_data *data = 1460 container_of(work, struct qeth_bridge_state_data, worker); 1461 /* We are only interested in the first entry - local port */ 1462 struct qeth_sbp_port_entry *entry = &data->qports.entry[0]; 1463 char env_locrem[32]; 1464 char env_role[32]; 1465 char env_state[32]; 1466 char *env[] = { 1467 env_locrem, 1468 env_role, 1469 env_state, 1470 NULL 1471 }; 1472 1473 /* Role should not change by itself, but if it did, */ 1474 /* information from the hardware is authoritative. */ 1475 mutex_lock(&data->card->conf_mutex); 1476 data->card->options.sbp.role = entry->role; 1477 mutex_unlock(&data->card->conf_mutex); 1478 1479 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); 1480 snprintf(env_role, sizeof(env_role), "ROLE=%s", 1481 (entry->role == QETH_SBP_ROLE_NONE) ? "none" : 1482 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : 1483 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : 1484 "<INVALID>"); 1485 snprintf(env_state, sizeof(env_state), "STATE=%s", 1486 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : 1487 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" : 1488 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" : 1489 "<INVALID>"); 1490 kobject_uevent_env(&data->card->gdev->dev.kobj, 1491 KOBJ_CHANGE, env); 1492 kfree(data); 1493 } 1494 1495 static void qeth_bridge_state_change(struct qeth_card *card, 1496 struct qeth_ipa_cmd *cmd) 1497 { 1498 struct qeth_sbp_state_change *qports = 1499 &cmd->data.sbp.data.state_change; 1500 struct qeth_bridge_state_data *data; 1501 int extrasize; 1502 1503 QETH_CARD_TEXT(card, 2, "brstchng"); 1504 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1505 QETH_CARD_TEXT_(card, 2, "BPsz%04x", qports->entry_length); 1506 return; 1507 } 1508 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries; 1509 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize, 1510 GFP_ATOMIC); 1511 if (!data) { 1512 QETH_CARD_TEXT(card, 2, "BPSalloc"); 1513 return; 1514 } 1515 INIT_WORK(&data->worker, qeth_bridge_state_change_worker); 1516 data->card = card; 1517 memcpy(&data->qports, qports, 1518 sizeof(struct qeth_sbp_state_change) + extrasize); 1519 queue_work(qeth_wq, &data->worker); 1520 } 1521 1522 struct qeth_bridge_host_data { 1523 struct work_struct worker; 1524 struct qeth_card *card; 1525 struct qeth_ipacmd_addr_change hostevs; 1526 }; 1527 1528 static void qeth_bridge_host_event_worker(struct work_struct *work) 1529 { 1530 struct qeth_bridge_host_data *data = 1531 container_of(work, struct qeth_bridge_host_data, worker); 1532 int i; 1533 1534 if (data->hostevs.lost_event_mask) { 1535 dev_info(&data->card->gdev->dev, 1536 "Address notification from the HiperSockets Bridge Port stopped %s (%s)\n", 1537 data->card->dev->name, 1538 (data->hostevs.lost_event_mask == 0x01) 1539 ? "Overflow" 1540 : (data->hostevs.lost_event_mask == 0x02) 1541 ? "Bridge port state change" 1542 : "Unknown reason"); 1543 mutex_lock(&data->card->conf_mutex); 1544 data->card->options.sbp.hostnotification = 0; 1545 mutex_unlock(&data->card->conf_mutex); 1546 qeth_bridge_emit_host_event(data->card, anev_abort, 1547 0, NULL, NULL); 1548 } else 1549 for (i = 0; i < data->hostevs.num_entries; i++) { 1550 struct qeth_ipacmd_addr_change_entry *entry = 1551 &data->hostevs.entry[i]; 1552 qeth_bridge_emit_host_event(data->card, 1553 anev_reg_unreg, 1554 entry->change_code, 1555 &entry->token, &entry->addr_lnid); 1556 } 1557 kfree(data); 1558 } 1559 1560 static void qeth_bridge_host_event(struct qeth_card *card, 1561 struct qeth_ipa_cmd *cmd) 1562 { 1563 struct qeth_ipacmd_addr_change *hostevs = 1564 &cmd->data.addrchange; 1565 struct qeth_bridge_host_data *data; 1566 int extrasize; 1567 1568 QETH_CARD_TEXT(card, 2, "brhostev"); 1569 if (cmd->hdr.return_code != 0x0000) { 1570 if (cmd->hdr.return_code == 0x0010) { 1571 if (hostevs->lost_event_mask == 0x00) 1572 hostevs->lost_event_mask = 0xff; 1573 } else { 1574 QETH_CARD_TEXT_(card, 2, "BPHe%04x", 1575 cmd->hdr.return_code); 1576 return; 1577 } 1578 } 1579 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * 1580 hostevs->num_entries; 1581 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize, 1582 GFP_ATOMIC); 1583 if (!data) { 1584 QETH_CARD_TEXT(card, 2, "BPHalloc"); 1585 return; 1586 } 1587 INIT_WORK(&data->worker, qeth_bridge_host_event_worker); 1588 data->card = card; 1589 memcpy(&data->hostevs, hostevs, 1590 sizeof(struct qeth_ipacmd_addr_change) + extrasize); 1591 queue_work(qeth_wq, &data->worker); 1592 } 1593 1594 /* SETBRIDGEPORT support; sending commands */ 1595 1596 struct _qeth_sbp_cbctl { 1597 u16 ipa_rc; 1598 u16 cmd_rc; 1599 union { 1600 u32 supported; 1601 struct { 1602 enum qeth_sbp_roles *role; 1603 enum qeth_sbp_states *state; 1604 } qports; 1605 } data; 1606 }; 1607 1608 /** 1609 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes. 1610 * @card: qeth_card structure pointer, for debug messages. 1611 * @cbctl: state structure with hardware return codes. 1612 * @setcmd: IPA command code 1613 * 1614 * Returns negative errno-compatible error indication or 0 on success. 1615 */ 1616 static int qeth_bridgeport_makerc(struct qeth_card *card, 1617 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd) 1618 { 1619 int rc; 1620 1621 switch (cbctl->ipa_rc) { 1622 case IPA_RC_SUCCESS: 1623 switch (cbctl->cmd_rc) { 1624 case 0x0000: 1625 rc = 0; 1626 break; 1627 case 0x0004: 1628 rc = -ENOSYS; 1629 break; 1630 case 0x000C: /* Not configured as bridge Port */ 1631 rc = -ENODEV; /* maybe not the best code here? */ 1632 dev_err(&card->gdev->dev, 1633 "The HiperSockets device is not configured as a Bridge Port\n"); 1634 break; 1635 case 0x0014: /* Another device is Primary */ 1636 switch (setcmd) { 1637 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: 1638 rc = -EEXIST; 1639 dev_err(&card->gdev->dev, 1640 "The HiperSockets LAN already has a primary Bridge Port\n"); 1641 break; 1642 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: 1643 rc = -EBUSY; 1644 dev_err(&card->gdev->dev, 1645 "The HiperSockets device is already a primary Bridge Port\n"); 1646 break; 1647 default: 1648 rc = -EIO; 1649 } 1650 break; 1651 case 0x0018: /* This device is currently Secondary */ 1652 rc = -EBUSY; 1653 dev_err(&card->gdev->dev, 1654 "The HiperSockets device is already a secondary Bridge Port\n"); 1655 break; 1656 case 0x001C: /* Limit for Secondary devices reached */ 1657 rc = -EEXIST; 1658 dev_err(&card->gdev->dev, 1659 "The HiperSockets LAN cannot have more secondary Bridge Ports\n"); 1660 break; 1661 case 0x0024: /* This device is currently Primary */ 1662 rc = -EBUSY; 1663 dev_err(&card->gdev->dev, 1664 "The HiperSockets device is already a primary Bridge Port\n"); 1665 break; 1666 case 0x0020: /* Not authorized by zManager */ 1667 rc = -EACCES; 1668 dev_err(&card->gdev->dev, 1669 "The HiperSockets device is not authorized to be a Bridge Port\n"); 1670 break; 1671 default: 1672 rc = -EIO; 1673 } 1674 break; 1675 case IPA_RC_NOTSUPP: 1676 rc = -ENOSYS; 1677 break; 1678 case IPA_RC_UNSUPPORTED_COMMAND: 1679 rc = -ENOSYS; 1680 break; 1681 default: 1682 rc = -EIO; 1683 } 1684 if (rc) { 1685 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc); 1686 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc); 1687 } 1688 return rc; 1689 } 1690 1691 static int qeth_bridgeport_query_support_cb(struct qeth_card *card, 1692 struct qeth_reply *reply, unsigned long data) 1693 { 1694 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1695 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1696 QETH_CARD_TEXT(card, 2, "brqsupcb"); 1697 cbctl->ipa_rc = cmd->hdr.return_code; 1698 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1699 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) { 1700 cbctl->data.supported = 1701 cmd->data.sbp.data.query_cmds_supp.supported_cmds; 1702 } else { 1703 cbctl->data.supported = 0; 1704 } 1705 return 0; 1706 } 1707 1708 /** 1709 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. 1710 * @card: qeth_card structure pointer. 1711 * 1712 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card 1713 * strucutre: card->options.sbp.supported_funcs. 1714 */ 1715 static void qeth_bridgeport_query_support(struct qeth_card *card) 1716 { 1717 struct qeth_cmd_buffer *iob; 1718 struct qeth_ipa_cmd *cmd; 1719 struct _qeth_sbp_cbctl cbctl; 1720 1721 QETH_CARD_TEXT(card, 2, "brqsuppo"); 1722 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); 1723 if (!iob) 1724 return; 1725 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1726 cmd->data.sbp.hdr.cmdlength = 1727 sizeof(struct qeth_ipacmd_sbp_hdr) + 1728 sizeof(struct qeth_sbp_query_cmds_supp); 1729 cmd->data.sbp.hdr.command_code = 1730 IPA_SBP_QUERY_COMMANDS_SUPPORTED; 1731 cmd->data.sbp.hdr.used_total = 1; 1732 cmd->data.sbp.hdr.seq_no = 1; 1733 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, 1734 (void *)&cbctl) || 1735 qeth_bridgeport_makerc(card, &cbctl, 1736 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) { 1737 /* non-zero makerc signifies failure, and produce messages */ 1738 card->options.sbp.role = QETH_SBP_ROLE_NONE; 1739 return; 1740 } 1741 card->options.sbp.supported_funcs = cbctl.data.supported; 1742 } 1743 1744 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, 1745 struct qeth_reply *reply, unsigned long data) 1746 { 1747 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1748 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports; 1749 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1750 1751 QETH_CARD_TEXT(card, 2, "brqprtcb"); 1752 cbctl->ipa_rc = cmd->hdr.return_code; 1753 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1754 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0)) 1755 return 0; 1756 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1757 cbctl->cmd_rc = 0xffff; 1758 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); 1759 return 0; 1760 } 1761 /* first entry contains the state of the local port */ 1762 if (qports->num_entries > 0) { 1763 if (cbctl->data.qports.role) 1764 *cbctl->data.qports.role = qports->entry[0].role; 1765 if (cbctl->data.qports.state) 1766 *cbctl->data.qports.state = qports->entry[0].state; 1767 } 1768 return 0; 1769 } 1770 1771 /** 1772 * qeth_bridgeport_query_ports() - query local bridgeport status. 1773 * @card: qeth_card structure pointer. 1774 * @role: Role of the port: 0-none, 1-primary, 2-secondary. 1775 * @state: State of the port: 0-inactive, 1-standby, 2-active. 1776 * 1777 * Returns negative errno-compatible error indication or 0 on success. 1778 * 1779 * 'role' and 'state' are not updated in case of hardware operation failure. 1780 */ 1781 int qeth_bridgeport_query_ports(struct qeth_card *card, 1782 enum qeth_sbp_roles *role, enum qeth_sbp_states *state) 1783 { 1784 int rc = 0; 1785 struct qeth_cmd_buffer *iob; 1786 struct qeth_ipa_cmd *cmd; 1787 struct _qeth_sbp_cbctl cbctl = { 1788 .data = { 1789 .qports = { 1790 .role = role, 1791 .state = state, 1792 }, 1793 }, 1794 }; 1795 1796 QETH_CARD_TEXT(card, 2, "brqports"); 1797 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) 1798 return -EOPNOTSUPP; 1799 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); 1800 if (!iob) 1801 return -ENOMEM; 1802 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1803 cmd->data.sbp.hdr.cmdlength = 1804 sizeof(struct qeth_ipacmd_sbp_hdr); 1805 cmd->data.sbp.hdr.command_code = 1806 IPA_SBP_QUERY_BRIDGE_PORTS; 1807 cmd->data.sbp.hdr.used_total = 1; 1808 cmd->data.sbp.hdr.seq_no = 1; 1809 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, 1810 (void *)&cbctl); 1811 if (rc) 1812 return rc; 1813 rc = qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS); 1814 return rc; 1815 } 1816 EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports); 1817 1818 static int qeth_bridgeport_set_cb(struct qeth_card *card, 1819 struct qeth_reply *reply, unsigned long data) 1820 { 1821 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 1822 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1823 QETH_CARD_TEXT(card, 2, "brsetrcb"); 1824 cbctl->ipa_rc = cmd->hdr.return_code; 1825 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1826 return 0; 1827 } 1828 1829 /** 1830 * qeth_bridgeport_setrole() - Assign primary role to the port. 1831 * @card: qeth_card structure pointer. 1832 * @role: Role to assign. 1833 * 1834 * Returns negative errno-compatible error indication or 0 on success. 1835 */ 1836 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) 1837 { 1838 int rc = 0; 1839 int cmdlength; 1840 struct qeth_cmd_buffer *iob; 1841 struct qeth_ipa_cmd *cmd; 1842 struct _qeth_sbp_cbctl cbctl; 1843 enum qeth_ipa_sbp_cmd setcmd; 1844 1845 QETH_CARD_TEXT(card, 2, "brsetrol"); 1846 switch (role) { 1847 case QETH_SBP_ROLE_NONE: 1848 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; 1849 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1850 sizeof(struct qeth_sbp_reset_role); 1851 break; 1852 case QETH_SBP_ROLE_PRIMARY: 1853 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; 1854 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1855 sizeof(struct qeth_sbp_set_primary); 1856 break; 1857 case QETH_SBP_ROLE_SECONDARY: 1858 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; 1859 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1860 sizeof(struct qeth_sbp_set_secondary); 1861 break; 1862 default: 1863 return -EINVAL; 1864 } 1865 if (!(card->options.sbp.supported_funcs & setcmd)) 1866 return -EOPNOTSUPP; 1867 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); 1868 if (!iob) 1869 return -ENOMEM; 1870 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1871 cmd->data.sbp.hdr.cmdlength = cmdlength; 1872 cmd->data.sbp.hdr.command_code = setcmd; 1873 cmd->data.sbp.hdr.used_total = 1; 1874 cmd->data.sbp.hdr.seq_no = 1; 1875 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, 1876 (void *)&cbctl); 1877 if (rc) 1878 return rc; 1879 rc = qeth_bridgeport_makerc(card, &cbctl, setcmd); 1880 return rc; 1881 } 1882 1883 /** 1884 * qeth_anset_makerc() - derive "traditional" error from hardware codes. 1885 * @card: qeth_card structure pointer, for debug messages. 1886 * 1887 * Returns negative errno-compatible error indication or 0 on success. 1888 */ 1889 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response) 1890 { 1891 int rc; 1892 1893 if (pnso_rc == 0) 1894 switch (response) { 1895 case 0x0001: 1896 rc = 0; 1897 break; 1898 case 0x0004: 1899 case 0x0100: 1900 case 0x0106: 1901 rc = -ENOSYS; 1902 dev_err(&card->gdev->dev, 1903 "Setting address notification failed\n"); 1904 break; 1905 case 0x0107: 1906 rc = -EAGAIN; 1907 break; 1908 default: 1909 rc = -EIO; 1910 } 1911 else 1912 rc = -EIO; 1913 1914 if (rc) { 1915 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc); 1916 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response); 1917 } 1918 return rc; 1919 } 1920 1921 static void qeth_bridgeport_an_set_cb(void *priv, 1922 enum qdio_brinfo_entry_type type, void *entry) 1923 { 1924 struct qeth_card *card = (struct qeth_card *)priv; 1925 struct qdio_brinfo_entry_l2 *l2entry; 1926 u8 code; 1927 1928 if (type != l2_addr_lnid) { 1929 WARN_ON_ONCE(1); 1930 return; 1931 } 1932 1933 l2entry = (struct qdio_brinfo_entry_l2 *)entry; 1934 code = IPA_ADDR_CHANGE_CODE_MACADDR; 1935 if (l2entry->addr_lnid.lnid) 1936 code |= IPA_ADDR_CHANGE_CODE_VLANID; 1937 qeth_bridge_emit_host_event(card, anev_reg_unreg, code, 1938 (struct net_if_token *)&l2entry->nit, 1939 (struct mac_addr_lnid *)&l2entry->addr_lnid); 1940 } 1941 1942 /** 1943 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification 1944 * @card: qeth_card structure pointer. 1945 * @enable: 0 - disable, non-zero - enable notifications 1946 * 1947 * Returns negative errno-compatible error indication or 0 on success. 1948 * 1949 * On enable, emits a series of address notifications udev events for all 1950 * currently registered hosts. 1951 */ 1952 int qeth_bridgeport_an_set(struct qeth_card *card, int enable) 1953 { 1954 int rc; 1955 u16 response; 1956 struct ccw_device *ddev; 1957 struct subchannel_id schid; 1958 1959 if (!card) 1960 return -EINVAL; 1961 if (!card->options.sbp.supported_funcs) 1962 return -EOPNOTSUPP; 1963 ddev = CARD_DDEV(card); 1964 ccw_device_get_schid(ddev, &schid); 1965 1966 if (enable) { 1967 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); 1968 rc = qdio_pnso_brinfo(schid, 1, &response, 1969 qeth_bridgeport_an_set_cb, card); 1970 } else 1971 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL); 1972 return qeth_anset_makerc(card, rc, response); 1973 } 1974 EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set); 1975 1976 module_init(qeth_l2_init); 1977 module_exit(qeth_l2_exit); 1978 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 1979 MODULE_DESCRIPTION("qeth layer 2 discipline"); 1980 MODULE_LICENSE("GPL"); 1981