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