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 int (*reply_cb) (struct qeth_card *, 32 struct qeth_reply*, 33 unsigned long)); 34 static void qeth_l2_set_multicast_list(struct net_device *); 35 static int qeth_l2_recover(void *); 36 static void qeth_bridgeport_query_support(struct qeth_card *card); 37 static void qeth_bridge_state_change(struct qeth_card *card, 38 struct qeth_ipa_cmd *cmd); 39 static void qeth_bridge_host_event(struct qeth_card *card, 40 struct qeth_ipa_cmd *cmd); 41 42 static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 43 { 44 struct qeth_card *card = dev->ml_priv; 45 struct mii_ioctl_data *mii_data; 46 int rc = 0; 47 48 if (!card) 49 return -ENODEV; 50 51 if ((card->state != CARD_STATE_UP) && 52 (card->state != CARD_STATE_SOFTSETUP)) 53 return -ENODEV; 54 55 if (card->info.type == QETH_CARD_TYPE_OSN) 56 return -EPERM; 57 58 switch (cmd) { 59 case SIOC_QETH_ADP_SET_SNMP_CONTROL: 60 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); 61 break; 62 case SIOC_QETH_GET_CARD_TYPE: 63 if ((card->info.type == QETH_CARD_TYPE_OSD || 64 card->info.type == QETH_CARD_TYPE_OSM || 65 card->info.type == QETH_CARD_TYPE_OSX) && 66 !card->info.guestlan) 67 return 1; 68 return 0; 69 break; 70 case SIOCGMIIPHY: 71 mii_data = if_mii(rq); 72 mii_data->phy_id = 0; 73 break; 74 case SIOCGMIIREG: 75 mii_data = if_mii(rq); 76 if (mii_data->phy_id != 0) 77 rc = -EINVAL; 78 else 79 mii_data->val_out = qeth_mdio_read(dev, 80 mii_data->phy_id, mii_data->reg_num); 81 break; 82 case SIOC_QETH_QUERY_OAT: 83 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); 84 break; 85 default: 86 rc = -EOPNOTSUPP; 87 } 88 if (rc) 89 QETH_CARD_TEXT_(card, 2, "ioce%d", rc); 90 return rc; 91 } 92 93 static int qeth_l2_verify_dev(struct net_device *dev) 94 { 95 struct qeth_card *card; 96 unsigned long flags; 97 int rc = 0; 98 99 read_lock_irqsave(&qeth_core_card_list.rwlock, flags); 100 list_for_each_entry(card, &qeth_core_card_list.list, list) { 101 if (card->dev == dev) { 102 rc = QETH_REAL_CARD; 103 break; 104 } 105 } 106 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); 107 108 return rc; 109 } 110 111 static struct net_device *qeth_l2_netdev_by_devno(unsigned char *read_dev_no) 112 { 113 struct qeth_card *card; 114 struct net_device *ndev; 115 __u16 temp_dev_no; 116 unsigned long flags; 117 struct ccw_dev_id read_devid; 118 119 ndev = NULL; 120 memcpy(&temp_dev_no, read_dev_no, 2); 121 read_lock_irqsave(&qeth_core_card_list.rwlock, flags); 122 list_for_each_entry(card, &qeth_core_card_list.list, list) { 123 ccw_device_get_id(CARD_RDEV(card), &read_devid); 124 if (read_devid.devno == temp_dev_no) { 125 ndev = card->dev; 126 break; 127 } 128 } 129 read_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); 130 return ndev; 131 } 132 133 static int qeth_l2_send_setgroupmac_cb(struct qeth_card *card, 134 struct qeth_reply *reply, 135 unsigned long data) 136 { 137 struct qeth_ipa_cmd *cmd; 138 __u8 *mac; 139 140 QETH_CARD_TEXT(card, 2, "L2Sgmacb"); 141 cmd = (struct qeth_ipa_cmd *) data; 142 mac = &cmd->data.setdelmac.mac[0]; 143 /* MAC already registered, needed in couple/uncouple case */ 144 if (cmd->hdr.return_code == IPA_RC_L2_DUP_MAC) { 145 QETH_DBF_MESSAGE(2, "Group MAC %pM already existing on %s \n", 146 mac, QETH_CARD_IFNAME(card)); 147 cmd->hdr.return_code = 0; 148 } 149 if (cmd->hdr.return_code) 150 QETH_DBF_MESSAGE(2, "Could not set group MAC %pM on %s: %x\n", 151 mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); 152 return 0; 153 } 154 155 static int qeth_l2_send_setgroupmac(struct qeth_card *card, __u8 *mac) 156 { 157 QETH_CARD_TEXT(card, 2, "L2Sgmac"); 158 return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, 159 qeth_l2_send_setgroupmac_cb); 160 } 161 162 static int qeth_l2_send_delgroupmac_cb(struct qeth_card *card, 163 struct qeth_reply *reply, 164 unsigned long data) 165 { 166 struct qeth_ipa_cmd *cmd; 167 __u8 *mac; 168 169 QETH_CARD_TEXT(card, 2, "L2Dgmacb"); 170 cmd = (struct qeth_ipa_cmd *) data; 171 mac = &cmd->data.setdelmac.mac[0]; 172 if (cmd->hdr.return_code) 173 QETH_DBF_MESSAGE(2, "Could not delete group MAC %pM on %s: %x\n", 174 mac, QETH_CARD_IFNAME(card), cmd->hdr.return_code); 175 return 0; 176 } 177 178 static int qeth_l2_send_delgroupmac(struct qeth_card *card, __u8 *mac) 179 { 180 QETH_CARD_TEXT(card, 2, "L2Dgmac"); 181 return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, 182 qeth_l2_send_delgroupmac_cb); 183 } 184 185 static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac) 186 { 187 struct qeth_mc_mac *mc; 188 int rc; 189 190 mc = kmalloc(sizeof(struct qeth_mc_mac), GFP_ATOMIC); 191 192 if (!mc) 193 return; 194 195 memcpy(mc->mc_addr, mac, OSA_ADDR_LEN); 196 mc->mc_addrlen = OSA_ADDR_LEN; 197 mc->is_vmac = vmac; 198 199 if (vmac) { 200 rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, 201 NULL); 202 } else { 203 rc = qeth_l2_send_setgroupmac(card, mac); 204 } 205 206 if (!rc) 207 list_add_tail(&mc->list, &card->mc_list); 208 else 209 kfree(mc); 210 } 211 212 static void qeth_l2_del_all_mc(struct qeth_card *card, int del) 213 { 214 struct qeth_mc_mac *mc, *tmp; 215 216 spin_lock_bh(&card->mclock); 217 list_for_each_entry_safe(mc, tmp, &card->mc_list, list) { 218 if (del) { 219 if (mc->is_vmac) 220 qeth_l2_send_setdelmac(card, mc->mc_addr, 221 IPA_CMD_DELVMAC, NULL); 222 else 223 qeth_l2_send_delgroupmac(card, mc->mc_addr); 224 } 225 list_del(&mc->list); 226 kfree(mc); 227 } 228 spin_unlock_bh(&card->mclock); 229 } 230 231 static inline int qeth_l2_get_cast_type(struct qeth_card *card, 232 struct sk_buff *skb) 233 { 234 if (card->info.type == QETH_CARD_TYPE_OSN) 235 return RTN_UNSPEC; 236 if (is_broadcast_ether_addr(skb->data)) 237 return RTN_BROADCAST; 238 if (is_multicast_ether_addr(skb->data)) 239 return RTN_MULTICAST; 240 return RTN_UNSPEC; 241 } 242 243 static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, 244 struct sk_buff *skb, int cast_type) 245 { 246 struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); 247 248 memset(hdr, 0, sizeof(struct qeth_hdr)); 249 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; 250 251 /* set byte byte 3 to casting flags */ 252 if (cast_type == RTN_MULTICAST) 253 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_MULTICAST; 254 else if (cast_type == RTN_BROADCAST) 255 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_BROADCAST; 256 else 257 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_UNICAST; 258 259 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; 260 /* VSWITCH relies on the VLAN 261 * information to be present in 262 * the QDIO header */ 263 if (veth->h_vlan_proto == __constant_htons(ETH_P_8021Q)) { 264 hdr->hdr.l2.flags[2] |= QETH_LAYER2_FLAG_VLAN; 265 hdr->hdr.l2.vlan_id = ntohs(veth->h_vlan_TCI); 266 } 267 } 268 269 static int qeth_l2_send_setdelvlan_cb(struct qeth_card *card, 270 struct qeth_reply *reply, unsigned long data) 271 { 272 struct qeth_ipa_cmd *cmd; 273 274 QETH_CARD_TEXT(card, 2, "L2sdvcb"); 275 cmd = (struct qeth_ipa_cmd *) data; 276 if (cmd->hdr.return_code) { 277 QETH_DBF_MESSAGE(2, "Error in processing VLAN %i on %s: 0x%x. " 278 "Continuing\n", cmd->data.setdelvlan.vlan_id, 279 QETH_CARD_IFNAME(card), cmd->hdr.return_code); 280 QETH_CARD_TEXT_(card, 2, "L2VL%4x", cmd->hdr.command); 281 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); 282 } 283 return 0; 284 } 285 286 static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i, 287 enum qeth_ipa_cmds ipacmd) 288 { 289 struct qeth_ipa_cmd *cmd; 290 struct qeth_cmd_buffer *iob; 291 292 QETH_CARD_TEXT_(card, 4, "L2sdv%x", ipacmd); 293 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 294 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 295 cmd->data.setdelvlan.vlan_id = i; 296 return qeth_send_ipa_cmd(card, iob, 297 qeth_l2_send_setdelvlan_cb, NULL); 298 } 299 300 static void qeth_l2_process_vlans(struct qeth_card *card) 301 { 302 struct qeth_vlan_vid *id; 303 QETH_CARD_TEXT(card, 3, "L2prcvln"); 304 spin_lock_bh(&card->vlanlock); 305 list_for_each_entry(id, &card->vid_list, list) { 306 qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN); 307 } 308 spin_unlock_bh(&card->vlanlock); 309 } 310 311 static int qeth_l2_vlan_rx_add_vid(struct net_device *dev, 312 __be16 proto, u16 vid) 313 { 314 struct qeth_card *card = dev->ml_priv; 315 struct qeth_vlan_vid *id; 316 317 QETH_CARD_TEXT_(card, 4, "aid:%d", vid); 318 if (!vid) 319 return 0; 320 if (card->info.type == QETH_CARD_TYPE_OSM) { 321 QETH_CARD_TEXT(card, 3, "aidOSM"); 322 return 0; 323 } 324 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 325 QETH_CARD_TEXT(card, 3, "aidREC"); 326 return 0; 327 } 328 id = kmalloc(sizeof(struct qeth_vlan_vid), GFP_ATOMIC); 329 if (id) { 330 id->vid = vid; 331 qeth_l2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); 332 spin_lock_bh(&card->vlanlock); 333 list_add_tail(&id->list, &card->vid_list); 334 spin_unlock_bh(&card->vlanlock); 335 } else { 336 return -ENOMEM; 337 } 338 return 0; 339 } 340 341 static int qeth_l2_vlan_rx_kill_vid(struct net_device *dev, 342 __be16 proto, u16 vid) 343 { 344 struct qeth_vlan_vid *id, *tmpid = NULL; 345 struct qeth_card *card = dev->ml_priv; 346 347 QETH_CARD_TEXT_(card, 4, "kid:%d", vid); 348 if (card->info.type == QETH_CARD_TYPE_OSM) { 349 QETH_CARD_TEXT(card, 3, "kidOSM"); 350 return 0; 351 } 352 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 353 QETH_CARD_TEXT(card, 3, "kidREC"); 354 return 0; 355 } 356 spin_lock_bh(&card->vlanlock); 357 list_for_each_entry(id, &card->vid_list, list) { 358 if (id->vid == vid) { 359 list_del(&id->list); 360 tmpid = id; 361 break; 362 } 363 } 364 spin_unlock_bh(&card->vlanlock); 365 if (tmpid) { 366 qeth_l2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); 367 kfree(tmpid); 368 } 369 qeth_l2_set_multicast_list(card->dev); 370 return 0; 371 } 372 373 static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode) 374 { 375 int rc = 0; 376 377 QETH_DBF_TEXT(SETUP , 2, "stopcard"); 378 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 379 380 qeth_set_allowed_threads(card, 0, 1); 381 if (card->read.state == CH_STATE_UP && 382 card->write.state == CH_STATE_UP && 383 (card->state == CARD_STATE_UP)) { 384 if (recovery_mode && 385 card->info.type != QETH_CARD_TYPE_OSN) { 386 qeth_l2_stop(card->dev); 387 } else { 388 rtnl_lock(); 389 dev_close(card->dev); 390 rtnl_unlock(); 391 } 392 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 393 card->state = CARD_STATE_SOFTSETUP; 394 } 395 if (card->state == CARD_STATE_SOFTSETUP) { 396 qeth_l2_del_all_mc(card, 0); 397 qeth_clear_ipacmd_list(card); 398 card->state = CARD_STATE_HARDSETUP; 399 } 400 if (card->state == CARD_STATE_HARDSETUP) { 401 qeth_qdio_clear_card(card, 0); 402 qeth_clear_qdio_buffers(card); 403 qeth_clear_working_pool_list(card); 404 card->state = CARD_STATE_DOWN; 405 } 406 if (card->state == CARD_STATE_DOWN) { 407 qeth_clear_cmd_buffers(&card->read); 408 qeth_clear_cmd_buffers(&card->write); 409 } 410 return rc; 411 } 412 413 static int qeth_l2_process_inbound_buffer(struct qeth_card *card, 414 int budget, int *done) 415 { 416 int work_done = 0; 417 struct sk_buff *skb; 418 struct qeth_hdr *hdr; 419 unsigned int len; 420 421 *done = 0; 422 WARN_ON_ONCE(!budget); 423 while (budget) { 424 skb = qeth_core_get_next_skb(card, 425 &card->qdio.in_q->bufs[card->rx.b_index], 426 &card->rx.b_element, &card->rx.e_offset, &hdr); 427 if (!skb) { 428 *done = 1; 429 break; 430 } 431 skb->dev = card->dev; 432 switch (hdr->hdr.l2.id) { 433 case QETH_HEADER_TYPE_LAYER2: 434 skb->pkt_type = PACKET_HOST; 435 skb->protocol = eth_type_trans(skb, skb->dev); 436 skb->ip_summed = CHECKSUM_NONE; 437 if (skb->protocol == htons(ETH_P_802_2)) 438 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; 439 len = skb->len; 440 netif_receive_skb(skb); 441 break; 442 case QETH_HEADER_TYPE_OSN: 443 if (card->info.type == QETH_CARD_TYPE_OSN) { 444 skb_push(skb, sizeof(struct qeth_hdr)); 445 skb_copy_to_linear_data(skb, hdr, 446 sizeof(struct qeth_hdr)); 447 len = skb->len; 448 card->osn_info.data_cb(skb); 449 break; 450 } 451 /* else unknown */ 452 default: 453 dev_kfree_skb_any(skb); 454 QETH_CARD_TEXT(card, 3, "inbunkno"); 455 QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); 456 continue; 457 } 458 work_done++; 459 budget--; 460 card->stats.rx_packets++; 461 card->stats.rx_bytes += len; 462 } 463 return work_done; 464 } 465 466 static int qeth_l2_poll(struct napi_struct *napi, int budget) 467 { 468 struct qeth_card *card = container_of(napi, struct qeth_card, napi); 469 int work_done = 0; 470 struct qeth_qdio_buffer *buffer; 471 int done; 472 int new_budget = budget; 473 474 if (card->options.performance_stats) { 475 card->perf_stats.inbound_cnt++; 476 card->perf_stats.inbound_start_time = qeth_get_micros(); 477 } 478 479 while (1) { 480 if (!card->rx.b_count) { 481 card->rx.qdio_err = 0; 482 card->rx.b_count = qdio_get_next_buffers( 483 card->data.ccwdev, 0, &card->rx.b_index, 484 &card->rx.qdio_err); 485 if (card->rx.b_count <= 0) { 486 card->rx.b_count = 0; 487 break; 488 } 489 card->rx.b_element = 490 &card->qdio.in_q->bufs[card->rx.b_index] 491 .buffer->element[0]; 492 card->rx.e_offset = 0; 493 } 494 495 while (card->rx.b_count) { 496 buffer = &card->qdio.in_q->bufs[card->rx.b_index]; 497 if (!(card->rx.qdio_err && 498 qeth_check_qdio_errors(card, buffer->buffer, 499 card->rx.qdio_err, "qinerr"))) 500 work_done += qeth_l2_process_inbound_buffer( 501 card, new_budget, &done); 502 else 503 done = 1; 504 505 if (done) { 506 if (card->options.performance_stats) 507 card->perf_stats.bufs_rec++; 508 qeth_put_buffer_pool_entry(card, 509 buffer->pool_entry); 510 qeth_queue_input_buffer(card, card->rx.b_index); 511 card->rx.b_count--; 512 if (card->rx.b_count) { 513 card->rx.b_index = 514 (card->rx.b_index + 1) % 515 QDIO_MAX_BUFFERS_PER_Q; 516 card->rx.b_element = 517 &card->qdio.in_q 518 ->bufs[card->rx.b_index] 519 .buffer->element[0]; 520 card->rx.e_offset = 0; 521 } 522 } 523 524 if (work_done >= budget) 525 goto out; 526 else 527 new_budget = budget - work_done; 528 } 529 } 530 531 napi_complete(napi); 532 if (qdio_start_irq(card->data.ccwdev, 0)) 533 napi_schedule(&card->napi); 534 out: 535 if (card->options.performance_stats) 536 card->perf_stats.inbound_time += qeth_get_micros() - 537 card->perf_stats.inbound_start_time; 538 return work_done; 539 } 540 541 static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, 542 enum qeth_ipa_cmds ipacmd, 543 int (*reply_cb) (struct qeth_card *, 544 struct qeth_reply*, 545 unsigned long)) 546 { 547 struct qeth_ipa_cmd *cmd; 548 struct qeth_cmd_buffer *iob; 549 550 QETH_CARD_TEXT(card, 2, "L2sdmac"); 551 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 552 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 553 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; 554 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); 555 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); 556 } 557 558 static int qeth_l2_send_setmac_cb(struct qeth_card *card, 559 struct qeth_reply *reply, 560 unsigned long data) 561 { 562 struct qeth_ipa_cmd *cmd; 563 564 QETH_CARD_TEXT(card, 2, "L2Smaccb"); 565 cmd = (struct qeth_ipa_cmd *) data; 566 if (cmd->hdr.return_code) { 567 QETH_CARD_TEXT_(card, 2, "L2er%x", cmd->hdr.return_code); 568 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 569 switch (cmd->hdr.return_code) { 570 case IPA_RC_L2_DUP_MAC: 571 case IPA_RC_L2_DUP_LAYER3_MAC: 572 dev_warn(&card->gdev->dev, 573 "MAC address %pM already exists\n", 574 cmd->data.setdelmac.mac); 575 break; 576 case IPA_RC_L2_MAC_NOT_AUTH_BY_HYP: 577 case IPA_RC_L2_MAC_NOT_AUTH_BY_ADP: 578 dev_warn(&card->gdev->dev, 579 "MAC address %pM is not authorized\n", 580 cmd->data.setdelmac.mac); 581 break; 582 default: 583 break; 584 } 585 } else { 586 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; 587 memcpy(card->dev->dev_addr, cmd->data.setdelmac.mac, 588 OSA_ADDR_LEN); 589 dev_info(&card->gdev->dev, 590 "MAC address %pM successfully registered on device %s\n", 591 card->dev->dev_addr, card->dev->name); 592 } 593 return 0; 594 } 595 596 static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) 597 { 598 QETH_CARD_TEXT(card, 2, "L2Setmac"); 599 return qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, 600 qeth_l2_send_setmac_cb); 601 } 602 603 static int qeth_l2_send_delmac_cb(struct qeth_card *card, 604 struct qeth_reply *reply, 605 unsigned long data) 606 { 607 struct qeth_ipa_cmd *cmd; 608 609 QETH_CARD_TEXT(card, 2, "L2Dmaccb"); 610 cmd = (struct qeth_ipa_cmd *) data; 611 if (cmd->hdr.return_code) { 612 QETH_CARD_TEXT_(card, 2, "err%d", cmd->hdr.return_code); 613 return 0; 614 } 615 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 616 617 return 0; 618 } 619 620 static int qeth_l2_send_delmac(struct qeth_card *card, __u8 *mac) 621 { 622 QETH_CARD_TEXT(card, 2, "L2Delmac"); 623 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) 624 return 0; 625 return qeth_l2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, 626 qeth_l2_send_delmac_cb); 627 } 628 629 static int qeth_l2_request_initial_mac(struct qeth_card *card) 630 { 631 int rc = 0; 632 char vendor_pre[] = {0x02, 0x00, 0x00}; 633 634 QETH_DBF_TEXT(SETUP, 2, "doL2init"); 635 QETH_DBF_TEXT_(SETUP, 2, "doL2%s", CARD_BUS_ID(card)); 636 637 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { 638 rc = qeth_query_setadapterparms(card); 639 if (rc) { 640 QETH_DBF_MESSAGE(2, "could not query adapter " 641 "parameters on device %s: x%x\n", 642 CARD_BUS_ID(card), rc); 643 } 644 } 645 646 if (card->info.type == QETH_CARD_TYPE_IQD || 647 card->info.type == QETH_CARD_TYPE_OSM || 648 card->info.type == QETH_CARD_TYPE_OSX || 649 card->info.guestlan) { 650 rc = qeth_setadpparms_change_macaddr(card); 651 if (rc) { 652 QETH_DBF_MESSAGE(2, "couldn't get MAC address on " 653 "device %s: x%x\n", CARD_BUS_ID(card), rc); 654 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 655 return rc; 656 } 657 QETH_DBF_HEX(SETUP, 2, card->dev->dev_addr, OSA_ADDR_LEN); 658 } else { 659 eth_random_addr(card->dev->dev_addr); 660 memcpy(card->dev->dev_addr, vendor_pre, 3); 661 } 662 return 0; 663 } 664 665 static int qeth_l2_set_mac_address(struct net_device *dev, void *p) 666 { 667 struct sockaddr *addr = p; 668 struct qeth_card *card = dev->ml_priv; 669 int rc = 0; 670 671 QETH_CARD_TEXT(card, 3, "setmac"); 672 673 if (qeth_l2_verify_dev(dev) != QETH_REAL_CARD) { 674 QETH_CARD_TEXT(card, 3, "setmcINV"); 675 return -EOPNOTSUPP; 676 } 677 678 if (card->info.type == QETH_CARD_TYPE_OSN || 679 card->info.type == QETH_CARD_TYPE_OSM || 680 card->info.type == QETH_CARD_TYPE_OSX) { 681 QETH_CARD_TEXT(card, 3, "setmcTYP"); 682 return -EOPNOTSUPP; 683 } 684 QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); 685 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 686 QETH_CARD_TEXT(card, 3, "setmcREC"); 687 return -ERESTARTSYS; 688 } 689 rc = qeth_l2_send_delmac(card, &card->dev->dev_addr[0]); 690 if (!rc || (rc == IPA_RC_L2_MAC_NOT_FOUND)) 691 rc = qeth_l2_send_setmac(card, addr->sa_data); 692 return rc ? -EINVAL : 0; 693 } 694 695 static void qeth_l2_set_multicast_list(struct net_device *dev) 696 { 697 struct qeth_card *card = dev->ml_priv; 698 struct netdev_hw_addr *ha; 699 700 if (card->info.type == QETH_CARD_TYPE_OSN) 701 return ; 702 703 QETH_CARD_TEXT(card, 3, "setmulti"); 704 if (qeth_threads_running(card, QETH_RECOVER_THREAD) && 705 (card->state != CARD_STATE_UP)) 706 return; 707 qeth_l2_del_all_mc(card, 1); 708 spin_lock_bh(&card->mclock); 709 netdev_for_each_mc_addr(ha, dev) 710 qeth_l2_add_mc(card, ha->addr, 0); 711 712 netdev_for_each_uc_addr(ha, dev) 713 qeth_l2_add_mc(card, ha->addr, 1); 714 715 spin_unlock_bh(&card->mclock); 716 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) 717 return; 718 qeth_setadp_promisc_mode(card); 719 } 720 721 static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 722 { 723 int rc; 724 struct qeth_hdr *hdr = NULL; 725 int elements = 0; 726 struct qeth_card *card = dev->ml_priv; 727 struct sk_buff *new_skb = skb; 728 int cast_type = qeth_l2_get_cast_type(card, skb); 729 struct qeth_qdio_out_q *queue; 730 int tx_bytes = skb->len; 731 int data_offset = -1; 732 int elements_needed = 0; 733 int hd_len = 0; 734 735 if (card->qdio.do_prio_queueing || (cast_type && 736 card->info.is_multicast_different)) 737 queue = card->qdio.out_qs[qeth_get_priority_queue(card, skb, 738 qeth_get_ip_version(skb), cast_type)]; 739 else 740 queue = card->qdio.out_qs[card->qdio.default_out_queue]; 741 742 if ((card->state != CARD_STATE_UP) || !card->lan_online) { 743 card->stats.tx_carrier_errors++; 744 goto tx_drop; 745 } 746 747 if ((card->info.type == QETH_CARD_TYPE_OSN) && 748 (skb->protocol == htons(ETH_P_IPV6))) 749 goto tx_drop; 750 751 if (card->options.performance_stats) { 752 card->perf_stats.outbound_cnt++; 753 card->perf_stats.outbound_start_time = qeth_get_micros(); 754 } 755 netif_stop_queue(dev); 756 757 if (card->info.type == QETH_CARD_TYPE_OSN) 758 hdr = (struct qeth_hdr *)skb->data; 759 else { 760 if (card->info.type == QETH_CARD_TYPE_IQD) { 761 new_skb = skb; 762 data_offset = ETH_HLEN; 763 hd_len = ETH_HLEN; 764 hdr = kmem_cache_alloc(qeth_core_header_cache, 765 GFP_ATOMIC); 766 if (!hdr) 767 goto tx_drop; 768 elements_needed++; 769 skb_reset_mac_header(new_skb); 770 qeth_l2_fill_header(card, hdr, new_skb, cast_type); 771 hdr->hdr.l2.pkt_length = new_skb->len; 772 memcpy(((char *)hdr) + sizeof(struct qeth_hdr), 773 skb_mac_header(new_skb), ETH_HLEN); 774 } else { 775 /* create a clone with writeable headroom */ 776 new_skb = skb_realloc_headroom(skb, 777 sizeof(struct qeth_hdr)); 778 if (!new_skb) 779 goto tx_drop; 780 hdr = (struct qeth_hdr *)skb_push(new_skb, 781 sizeof(struct qeth_hdr)); 782 skb_set_mac_header(new_skb, sizeof(struct qeth_hdr)); 783 qeth_l2_fill_header(card, hdr, new_skb, cast_type); 784 } 785 } 786 787 elements = qeth_get_elements_no(card, new_skb, elements_needed); 788 if (!elements) { 789 if (data_offset >= 0) 790 kmem_cache_free(qeth_core_header_cache, hdr); 791 goto tx_drop; 792 } 793 794 if (card->info.type != QETH_CARD_TYPE_IQD) { 795 if (qeth_hdr_chk_and_bounce(new_skb, &hdr, 796 sizeof(struct qeth_hdr_layer2))) 797 goto tx_drop; 798 rc = qeth_do_send_packet(card, queue, new_skb, hdr, 799 elements); 800 } else 801 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, 802 elements, data_offset, hd_len); 803 if (!rc) { 804 card->stats.tx_packets++; 805 card->stats.tx_bytes += tx_bytes; 806 if (new_skb != skb) 807 dev_kfree_skb_any(skb); 808 rc = NETDEV_TX_OK; 809 } else { 810 if (data_offset >= 0) 811 kmem_cache_free(qeth_core_header_cache, hdr); 812 813 if (rc == -EBUSY) { 814 if (new_skb != skb) 815 dev_kfree_skb_any(new_skb); 816 return NETDEV_TX_BUSY; 817 } else 818 goto tx_drop; 819 } 820 821 netif_wake_queue(dev); 822 if (card->options.performance_stats) 823 card->perf_stats.outbound_time += qeth_get_micros() - 824 card->perf_stats.outbound_start_time; 825 return rc; 826 827 tx_drop: 828 card->stats.tx_dropped++; 829 card->stats.tx_errors++; 830 if ((new_skb != skb) && new_skb) 831 dev_kfree_skb_any(new_skb); 832 dev_kfree_skb_any(skb); 833 netif_wake_queue(dev); 834 return NETDEV_TX_OK; 835 } 836 837 static int __qeth_l2_open(struct net_device *dev) 838 { 839 struct qeth_card *card = dev->ml_priv; 840 int rc = 0; 841 842 QETH_CARD_TEXT(card, 4, "qethopen"); 843 if (card->state == CARD_STATE_UP) 844 return rc; 845 if (card->state != CARD_STATE_SOFTSETUP) 846 return -ENODEV; 847 848 if ((card->info.type != QETH_CARD_TYPE_OSN) && 849 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { 850 QETH_CARD_TEXT(card, 4, "nomacadr"); 851 return -EPERM; 852 } 853 card->data.state = CH_STATE_UP; 854 card->state = CARD_STATE_UP; 855 netif_start_queue(dev); 856 857 if (qdio_stop_irq(card->data.ccwdev, 0) >= 0) { 858 napi_enable(&card->napi); 859 napi_schedule(&card->napi); 860 } else 861 rc = -EIO; 862 return rc; 863 } 864 865 static int qeth_l2_open(struct net_device *dev) 866 { 867 struct qeth_card *card = dev->ml_priv; 868 869 QETH_CARD_TEXT(card, 5, "qethope_"); 870 if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { 871 QETH_CARD_TEXT(card, 3, "openREC"); 872 return -ERESTARTSYS; 873 } 874 return __qeth_l2_open(dev); 875 } 876 877 static int qeth_l2_stop(struct net_device *dev) 878 { 879 struct qeth_card *card = dev->ml_priv; 880 881 QETH_CARD_TEXT(card, 4, "qethstop"); 882 netif_tx_disable(dev); 883 if (card->state == CARD_STATE_UP) { 884 card->state = CARD_STATE_SOFTSETUP; 885 napi_disable(&card->napi); 886 } 887 return 0; 888 } 889 890 static int qeth_l2_probe_device(struct ccwgroup_device *gdev) 891 { 892 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 893 894 qeth_l2_create_device_attributes(&gdev->dev); 895 INIT_LIST_HEAD(&card->vid_list); 896 INIT_LIST_HEAD(&card->mc_list); 897 card->options.layer2 = 1; 898 card->info.hwtrap = 0; 899 return 0; 900 } 901 902 static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) 903 { 904 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 905 906 qeth_l2_remove_device_attributes(&cgdev->dev); 907 qeth_set_allowed_threads(card, 0, 1); 908 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 909 910 if (cgdev->state == CCWGROUP_ONLINE) 911 qeth_l2_set_offline(cgdev); 912 913 if (card->dev) { 914 unregister_netdev(card->dev); 915 card->dev = NULL; 916 } 917 return; 918 } 919 920 static const struct ethtool_ops qeth_l2_ethtool_ops = { 921 .get_link = ethtool_op_get_link, 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 .get_settings = qeth_core_ethtool_get_settings, 927 }; 928 929 static const struct ethtool_ops qeth_l2_osn_ops = { 930 .get_strings = qeth_core_get_strings, 931 .get_ethtool_stats = qeth_core_get_ethtool_stats, 932 .get_sset_count = qeth_core_get_sset_count, 933 .get_drvinfo = qeth_core_get_drvinfo, 934 }; 935 936 static const struct net_device_ops qeth_l2_netdev_ops = { 937 .ndo_open = qeth_l2_open, 938 .ndo_stop = qeth_l2_stop, 939 .ndo_get_stats = qeth_get_stats, 940 .ndo_start_xmit = qeth_l2_hard_start_xmit, 941 .ndo_validate_addr = eth_validate_addr, 942 .ndo_set_rx_mode = qeth_l2_set_multicast_list, 943 .ndo_do_ioctl = qeth_l2_do_ioctl, 944 .ndo_set_mac_address = qeth_l2_set_mac_address, 945 .ndo_change_mtu = qeth_change_mtu, 946 .ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid, 947 .ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid, 948 .ndo_tx_timeout = qeth_tx_timeout, 949 }; 950 951 static int qeth_l2_setup_netdev(struct qeth_card *card) 952 { 953 switch (card->info.type) { 954 case QETH_CARD_TYPE_IQD: 955 card->dev = alloc_netdev(0, "hsi%d", ether_setup); 956 break; 957 case QETH_CARD_TYPE_OSN: 958 card->dev = alloc_netdev(0, "osn%d", ether_setup); 959 card->dev->flags |= IFF_NOARP; 960 break; 961 default: 962 card->dev = alloc_etherdev(0); 963 } 964 965 if (!card->dev) 966 return -ENODEV; 967 968 card->dev->ml_priv = card; 969 card->dev->watchdog_timeo = QETH_TX_TIMEOUT; 970 card->dev->mtu = card->info.initial_mtu; 971 card->dev->netdev_ops = &qeth_l2_netdev_ops; 972 card->dev->ethtool_ops = 973 (card->info.type != QETH_CARD_TYPE_OSN) ? 974 &qeth_l2_ethtool_ops : &qeth_l2_osn_ops; 975 card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; 976 card->info.broadcast_capable = 1; 977 qeth_l2_request_initial_mac(card); 978 SET_NETDEV_DEV(card->dev, &card->gdev->dev); 979 netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT); 980 return register_netdev(card->dev); 981 } 982 983 static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode) 984 { 985 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 986 int rc = 0; 987 enum qeth_card_states recover_flag; 988 989 mutex_lock(&card->discipline_mutex); 990 mutex_lock(&card->conf_mutex); 991 QETH_DBF_TEXT(SETUP, 2, "setonlin"); 992 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 993 994 recover_flag = card->state; 995 rc = qeth_core_hardsetup_card(card); 996 if (rc) { 997 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 998 rc = -ENODEV; 999 goto out_remove; 1000 } 1001 qeth_bridgeport_query_support(card); 1002 if (card->options.sbp.supported_funcs) 1003 dev_info(&card->gdev->dev, 1004 "The device represents a HiperSockets Bridge Capable Port\n"); 1005 qeth_trace_features(card); 1006 1007 if (!card->dev && qeth_l2_setup_netdev(card)) { 1008 rc = -ENODEV; 1009 goto out_remove; 1010 } 1011 1012 if (card->info.type != QETH_CARD_TYPE_OSN) 1013 qeth_l2_send_setmac(card, &card->dev->dev_addr[0]); 1014 1015 if (qeth_is_diagass_supported(card, QETH_DIAGS_CMD_TRAP)) { 1016 if (card->info.hwtrap && 1017 qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM)) 1018 card->info.hwtrap = 0; 1019 } else 1020 card->info.hwtrap = 0; 1021 1022 qeth_l2_setup_bridgeport_attrs(card); 1023 1024 card->state = CARD_STATE_HARDSETUP; 1025 memset(&card->rx, 0, sizeof(struct qeth_rx)); 1026 qeth_print_status_message(card); 1027 1028 /* softsetup */ 1029 QETH_DBF_TEXT(SETUP, 2, "softsetp"); 1030 1031 rc = qeth_send_startlan(card); 1032 if (rc) { 1033 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 1034 if (rc == 0xe080) { 1035 dev_warn(&card->gdev->dev, 1036 "The LAN is offline\n"); 1037 card->lan_online = 0; 1038 goto contin; 1039 } 1040 rc = -ENODEV; 1041 goto out_remove; 1042 } else 1043 card->lan_online = 1; 1044 1045 contin: 1046 if ((card->info.type == QETH_CARD_TYPE_OSD) || 1047 (card->info.type == QETH_CARD_TYPE_OSX)) { 1048 /* configure isolation level */ 1049 rc = qeth_set_access_ctrl_online(card, 0); 1050 if (rc) { 1051 rc = -ENODEV; 1052 goto out_remove; 1053 } 1054 } 1055 1056 if (card->info.type != QETH_CARD_TYPE_OSN && 1057 card->info.type != QETH_CARD_TYPE_OSM) 1058 qeth_l2_process_vlans(card); 1059 1060 netif_tx_disable(card->dev); 1061 1062 rc = qeth_init_qdio_queues(card); 1063 if (rc) { 1064 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 1065 rc = -ENODEV; 1066 goto out_remove; 1067 } 1068 card->state = CARD_STATE_SOFTSETUP; 1069 if (card->lan_online) 1070 netif_carrier_on(card->dev); 1071 else 1072 netif_carrier_off(card->dev); 1073 1074 qeth_set_allowed_threads(card, 0xffffffff, 0); 1075 if (recover_flag == CARD_STATE_RECOVER) { 1076 if (recovery_mode && 1077 card->info.type != QETH_CARD_TYPE_OSN) { 1078 __qeth_l2_open(card->dev); 1079 } else { 1080 rtnl_lock(); 1081 dev_open(card->dev); 1082 rtnl_unlock(); 1083 } 1084 /* this also sets saved unicast addresses */ 1085 qeth_l2_set_multicast_list(card->dev); 1086 } 1087 /* let user_space know that device is online */ 1088 kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); 1089 mutex_unlock(&card->conf_mutex); 1090 mutex_unlock(&card->discipline_mutex); 1091 return 0; 1092 1093 out_remove: 1094 qeth_l2_stop_card(card, 0); 1095 ccw_device_set_offline(CARD_DDEV(card)); 1096 ccw_device_set_offline(CARD_WDEV(card)); 1097 ccw_device_set_offline(CARD_RDEV(card)); 1098 qdio_free(CARD_DDEV(card)); 1099 if (recover_flag == CARD_STATE_RECOVER) 1100 card->state = CARD_STATE_RECOVER; 1101 else 1102 card->state = CARD_STATE_DOWN; 1103 mutex_unlock(&card->conf_mutex); 1104 mutex_unlock(&card->discipline_mutex); 1105 return rc; 1106 } 1107 1108 static int qeth_l2_set_online(struct ccwgroup_device *gdev) 1109 { 1110 return __qeth_l2_set_online(gdev, 0); 1111 } 1112 1113 static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev, 1114 int recovery_mode) 1115 { 1116 struct qeth_card *card = dev_get_drvdata(&cgdev->dev); 1117 int rc = 0, rc2 = 0, rc3 = 0; 1118 enum qeth_card_states recover_flag; 1119 1120 mutex_lock(&card->discipline_mutex); 1121 mutex_lock(&card->conf_mutex); 1122 QETH_DBF_TEXT(SETUP, 3, "setoffl"); 1123 QETH_DBF_HEX(SETUP, 3, &card, sizeof(void *)); 1124 1125 if (card->dev && netif_carrier_ok(card->dev)) 1126 netif_carrier_off(card->dev); 1127 recover_flag = card->state; 1128 if ((!recovery_mode && card->info.hwtrap) || card->info.hwtrap == 2) { 1129 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1130 card->info.hwtrap = 1; 1131 } 1132 qeth_l2_stop_card(card, recovery_mode); 1133 rc = ccw_device_set_offline(CARD_DDEV(card)); 1134 rc2 = ccw_device_set_offline(CARD_WDEV(card)); 1135 rc3 = ccw_device_set_offline(CARD_RDEV(card)); 1136 if (!rc) 1137 rc = (rc2) ? rc2 : rc3; 1138 if (rc) 1139 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 1140 qdio_free(CARD_DDEV(card)); 1141 if (recover_flag == CARD_STATE_UP) 1142 card->state = CARD_STATE_RECOVER; 1143 /* let user_space know that device is offline */ 1144 kobject_uevent(&cgdev->dev.kobj, KOBJ_CHANGE); 1145 mutex_unlock(&card->conf_mutex); 1146 mutex_unlock(&card->discipline_mutex); 1147 return 0; 1148 } 1149 1150 static int qeth_l2_set_offline(struct ccwgroup_device *cgdev) 1151 { 1152 return __qeth_l2_set_offline(cgdev, 0); 1153 } 1154 1155 static int qeth_l2_recover(void *ptr) 1156 { 1157 struct qeth_card *card; 1158 int rc = 0; 1159 1160 card = (struct qeth_card *) ptr; 1161 QETH_CARD_TEXT(card, 2, "recover1"); 1162 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) 1163 return 0; 1164 QETH_CARD_TEXT(card, 2, "recover2"); 1165 dev_warn(&card->gdev->dev, 1166 "A recovery process has been started for the device\n"); 1167 qeth_set_recovery_task(card); 1168 __qeth_l2_set_offline(card->gdev, 1); 1169 rc = __qeth_l2_set_online(card->gdev, 1); 1170 if (!rc) 1171 dev_info(&card->gdev->dev, 1172 "Device successfully recovered!\n"); 1173 else { 1174 qeth_close_dev(card); 1175 dev_warn(&card->gdev->dev, "The qeth device driver " 1176 "failed to recover an error on the device\n"); 1177 } 1178 qeth_clear_recovery_task(card); 1179 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 1180 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); 1181 return 0; 1182 } 1183 1184 static int __init qeth_l2_init(void) 1185 { 1186 pr_info("register layer 2 discipline\n"); 1187 return 0; 1188 } 1189 1190 static void __exit qeth_l2_exit(void) 1191 { 1192 pr_info("unregister layer 2 discipline\n"); 1193 } 1194 1195 static void qeth_l2_shutdown(struct ccwgroup_device *gdev) 1196 { 1197 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1198 qeth_set_allowed_threads(card, 0, 1); 1199 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) 1200 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1201 qeth_qdio_clear_card(card, 0); 1202 qeth_clear_qdio_buffers(card); 1203 qdio_free(CARD_DDEV(card)); 1204 } 1205 1206 static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev) 1207 { 1208 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1209 1210 if (card->dev) 1211 netif_device_detach(card->dev); 1212 qeth_set_allowed_threads(card, 0, 1); 1213 wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); 1214 if (gdev->state == CCWGROUP_OFFLINE) 1215 return 0; 1216 if (card->state == CARD_STATE_UP) { 1217 if (card->info.hwtrap) 1218 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 1219 __qeth_l2_set_offline(card->gdev, 1); 1220 } else 1221 __qeth_l2_set_offline(card->gdev, 0); 1222 return 0; 1223 } 1224 1225 static int qeth_l2_pm_resume(struct ccwgroup_device *gdev) 1226 { 1227 struct qeth_card *card = dev_get_drvdata(&gdev->dev); 1228 int rc = 0; 1229 1230 if (gdev->state == CCWGROUP_OFFLINE) 1231 goto out; 1232 1233 if (card->state == CARD_STATE_RECOVER) { 1234 rc = __qeth_l2_set_online(card->gdev, 1); 1235 if (rc) { 1236 rtnl_lock(); 1237 dev_close(card->dev); 1238 rtnl_unlock(); 1239 } 1240 } else 1241 rc = __qeth_l2_set_online(card->gdev, 0); 1242 out: 1243 qeth_set_allowed_threads(card, 0xffffffff, 0); 1244 if (card->dev) 1245 netif_device_attach(card->dev); 1246 if (rc) 1247 dev_warn(&card->gdev->dev, "The qeth device driver " 1248 "failed to recover an error on the device\n"); 1249 return rc; 1250 } 1251 1252 /* Returns zero if the command is successfully "consumed" */ 1253 static int qeth_l2_control_event(struct qeth_card *card, 1254 struct qeth_ipa_cmd *cmd) 1255 { 1256 switch (cmd->hdr.command) { 1257 case IPA_CMD_SETBRIDGEPORT: 1258 if (cmd->data.sbp.hdr.command_code == 1259 IPA_SBP_BRIDGE_PORT_STATE_CHANGE) { 1260 qeth_bridge_state_change(card, cmd); 1261 return 0; 1262 } else 1263 return 1; 1264 case IPA_CMD_ADDRESS_CHANGE_NOTIF: 1265 qeth_bridge_host_event(card, cmd); 1266 return 0; 1267 default: 1268 return 1; 1269 } 1270 } 1271 1272 struct qeth_discipline qeth_l2_discipline = { 1273 .start_poll = qeth_qdio_start_poll, 1274 .input_handler = (qdio_handler_t *) qeth_qdio_input_handler, 1275 .output_handler = (qdio_handler_t *) qeth_qdio_output_handler, 1276 .recover = qeth_l2_recover, 1277 .setup = qeth_l2_probe_device, 1278 .remove = qeth_l2_remove_device, 1279 .set_online = qeth_l2_set_online, 1280 .set_offline = qeth_l2_set_offline, 1281 .shutdown = qeth_l2_shutdown, 1282 .freeze = qeth_l2_pm_suspend, 1283 .thaw = qeth_l2_pm_resume, 1284 .restore = qeth_l2_pm_resume, 1285 .control_event_handler = qeth_l2_control_event, 1286 }; 1287 EXPORT_SYMBOL_GPL(qeth_l2_discipline); 1288 1289 static int qeth_osn_send_control_data(struct qeth_card *card, int len, 1290 struct qeth_cmd_buffer *iob) 1291 { 1292 unsigned long flags; 1293 int rc = 0; 1294 1295 QETH_CARD_TEXT(card, 5, "osndctrd"); 1296 1297 wait_event(card->wait_q, 1298 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); 1299 qeth_prepare_control_data(card, len, iob); 1300 QETH_CARD_TEXT(card, 6, "osnoirqp"); 1301 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); 1302 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, 1303 (addr_t) iob, 0, 0); 1304 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); 1305 if (rc) { 1306 QETH_DBF_MESSAGE(2, "qeth_osn_send_control_data: " 1307 "ccw_device_start rc = %i\n", rc); 1308 QETH_CARD_TEXT_(card, 2, " err%d", rc); 1309 qeth_release_buffer(iob->channel, iob); 1310 atomic_set(&card->write.irq_pending, 0); 1311 wake_up(&card->wait_q); 1312 } 1313 return rc; 1314 } 1315 1316 static int qeth_osn_send_ipa_cmd(struct qeth_card *card, 1317 struct qeth_cmd_buffer *iob, int data_len) 1318 { 1319 u16 s1, s2; 1320 1321 QETH_CARD_TEXT(card, 4, "osndipa"); 1322 1323 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); 1324 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); 1325 s2 = (u16)data_len; 1326 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 1327 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 1328 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 1329 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 1330 return qeth_osn_send_control_data(card, s1, iob); 1331 } 1332 1333 int qeth_osn_assist(struct net_device *dev, void *data, int data_len) 1334 { 1335 struct qeth_cmd_buffer *iob; 1336 struct qeth_card *card; 1337 int rc; 1338 1339 if (!dev) 1340 return -ENODEV; 1341 card = dev->ml_priv; 1342 if (!card) 1343 return -ENODEV; 1344 QETH_CARD_TEXT(card, 2, "osnsdmc"); 1345 if ((card->state != CARD_STATE_UP) && 1346 (card->state != CARD_STATE_SOFTSETUP)) 1347 return -ENODEV; 1348 iob = qeth_wait_for_buffer(&card->write); 1349 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); 1350 rc = qeth_osn_send_ipa_cmd(card, iob, data_len); 1351 return rc; 1352 } 1353 EXPORT_SYMBOL(qeth_osn_assist); 1354 1355 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, 1356 int (*assist_cb)(struct net_device *, void *), 1357 int (*data_cb)(struct sk_buff *)) 1358 { 1359 struct qeth_card *card; 1360 1361 *dev = qeth_l2_netdev_by_devno(read_dev_no); 1362 if (*dev == NULL) 1363 return -ENODEV; 1364 card = (*dev)->ml_priv; 1365 if (!card) 1366 return -ENODEV; 1367 QETH_CARD_TEXT(card, 2, "osnreg"); 1368 if ((assist_cb == NULL) || (data_cb == NULL)) 1369 return -EINVAL; 1370 card->osn_info.assist_cb = assist_cb; 1371 card->osn_info.data_cb = data_cb; 1372 return 0; 1373 } 1374 EXPORT_SYMBOL(qeth_osn_register); 1375 1376 void qeth_osn_deregister(struct net_device *dev) 1377 { 1378 struct qeth_card *card; 1379 1380 if (!dev) 1381 return; 1382 card = dev->ml_priv; 1383 if (!card) 1384 return; 1385 QETH_CARD_TEXT(card, 2, "osndereg"); 1386 card->osn_info.assist_cb = NULL; 1387 card->osn_info.data_cb = NULL; 1388 return; 1389 } 1390 EXPORT_SYMBOL(qeth_osn_deregister); 1391 1392 /* SETBRIDGEPORT support, async notifications */ 1393 1394 enum qeth_an_event_type {anev_reg_unreg, anev_abort, anev_reset}; 1395 1396 /** 1397 * qeth_bridge_emit_host_event() - bridgeport address change notification 1398 * @card: qeth_card structure pointer, for udev events. 1399 * @evtype: "normal" register/unregister, or abort, or reset. For abort 1400 * and reset token and addr_lnid are unused and may be NULL. 1401 * @code: event bitmask: high order bit 0x80 value 1 means removal of an 1402 * object, 0 - addition of an object. 1403 * 0x01 - VLAN, 0x02 - MAC, 0x03 - VLAN and MAC. 1404 * @token: "network token" structure identifying physical address of the port. 1405 * @addr_lnid: pointer to structure with MAC address and VLAN ID. 1406 * 1407 * This function is called when registrations and deregistrations are 1408 * reported by the hardware, and also when notifications are enabled - 1409 * for all currently registered addresses. 1410 */ 1411 static void qeth_bridge_emit_host_event(struct qeth_card *card, 1412 enum qeth_an_event_type evtype, 1413 u8 code, struct net_if_token *token, struct mac_addr_lnid *addr_lnid) 1414 { 1415 char str[7][32]; 1416 char *env[8]; 1417 int i = 0; 1418 1419 switch (evtype) { 1420 case anev_reg_unreg: 1421 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=%s", 1422 (code & IPA_ADDR_CHANGE_CODE_REMOVAL) 1423 ? "deregister" : "register"); 1424 env[i] = str[i]; i++; 1425 if (code & IPA_ADDR_CHANGE_CODE_VLANID) { 1426 snprintf(str[i], sizeof(str[i]), "VLAN=%d", 1427 addr_lnid->lnid); 1428 env[i] = str[i]; i++; 1429 } 1430 if (code & IPA_ADDR_CHANGE_CODE_MACADDR) { 1431 snprintf(str[i], sizeof(str[i]), "MAC=%pM6", 1432 &addr_lnid->mac); 1433 env[i] = str[i]; i++; 1434 } 1435 snprintf(str[i], sizeof(str[i]), "NTOK_BUSID=%x.%x.%04x", 1436 token->cssid, token->ssid, token->devnum); 1437 env[i] = str[i]; i++; 1438 snprintf(str[i], sizeof(str[i]), "NTOK_IID=%02x", token->iid); 1439 env[i] = str[i]; i++; 1440 snprintf(str[i], sizeof(str[i]), "NTOK_CHPID=%02x", 1441 token->chpid); 1442 env[i] = str[i]; i++; 1443 snprintf(str[i], sizeof(str[i]), "NTOK_CHID=%04x", token->chid); 1444 env[i] = str[i]; i++; 1445 break; 1446 case anev_abort: 1447 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=abort"); 1448 env[i] = str[i]; i++; 1449 break; 1450 case anev_reset: 1451 snprintf(str[i], sizeof(str[i]), "BRIDGEDHOST=reset"); 1452 env[i] = str[i]; i++; 1453 break; 1454 } 1455 env[i] = NULL; 1456 kobject_uevent_env(&card->gdev->dev.kobj, KOBJ_CHANGE, env); 1457 } 1458 1459 struct qeth_bridge_state_data { 1460 struct work_struct worker; 1461 struct qeth_card *card; 1462 struct qeth_sbp_state_change qports; 1463 }; 1464 1465 static void qeth_bridge_state_change_worker(struct work_struct *work) 1466 { 1467 struct qeth_bridge_state_data *data = 1468 container_of(work, struct qeth_bridge_state_data, worker); 1469 /* We are only interested in the first entry - local port */ 1470 struct qeth_sbp_port_entry *entry = &data->qports.entry[0]; 1471 char env_locrem[32]; 1472 char env_role[32]; 1473 char env_state[32]; 1474 char *env[] = { 1475 env_locrem, 1476 env_role, 1477 env_state, 1478 NULL 1479 }; 1480 1481 /* Role should not change by itself, but if it did, */ 1482 /* information from the hardware is authoritative. */ 1483 mutex_lock(&data->card->conf_mutex); 1484 data->card->options.sbp.role = entry->role; 1485 mutex_unlock(&data->card->conf_mutex); 1486 1487 snprintf(env_locrem, sizeof(env_locrem), "BRIDGEPORT=statechange"); 1488 snprintf(env_role, sizeof(env_role), "ROLE=%s", 1489 (entry->role == QETH_SBP_ROLE_NONE) ? "none" : 1490 (entry->role == QETH_SBP_ROLE_PRIMARY) ? "primary" : 1491 (entry->role == QETH_SBP_ROLE_SECONDARY) ? "secondary" : 1492 "<INVALID>"); 1493 snprintf(env_state, sizeof(env_state), "STATE=%s", 1494 (entry->state == QETH_SBP_STATE_INACTIVE) ? "inactive" : 1495 (entry->state == QETH_SBP_STATE_STANDBY) ? "standby" : 1496 (entry->state == QETH_SBP_STATE_ACTIVE) ? "active" : 1497 "<INVALID>"); 1498 kobject_uevent_env(&data->card->gdev->dev.kobj, 1499 KOBJ_CHANGE, env); 1500 kfree(data); 1501 } 1502 1503 static void qeth_bridge_state_change(struct qeth_card *card, 1504 struct qeth_ipa_cmd *cmd) 1505 { 1506 struct qeth_sbp_state_change *qports = 1507 &cmd->data.sbp.data.state_change; 1508 struct qeth_bridge_state_data *data; 1509 int extrasize; 1510 1511 QETH_CARD_TEXT(card, 2, "brstchng"); 1512 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1513 QETH_CARD_TEXT_(card, 2, "BPsz%.8d", qports->entry_length); 1514 return; 1515 } 1516 extrasize = sizeof(struct qeth_sbp_port_entry) * qports->num_entries; 1517 data = kzalloc(sizeof(struct qeth_bridge_state_data) + extrasize, 1518 GFP_ATOMIC); 1519 if (!data) { 1520 QETH_CARD_TEXT(card, 2, "BPSalloc"); 1521 return; 1522 } 1523 INIT_WORK(&data->worker, qeth_bridge_state_change_worker); 1524 data->card = card; 1525 memcpy(&data->qports, qports, 1526 sizeof(struct qeth_sbp_state_change) + extrasize); 1527 queue_work(qeth_wq, &data->worker); 1528 } 1529 1530 struct qeth_bridge_host_data { 1531 struct work_struct worker; 1532 struct qeth_card *card; 1533 struct qeth_ipacmd_addr_change hostevs; 1534 }; 1535 1536 static void qeth_bridge_host_event_worker(struct work_struct *work) 1537 { 1538 struct qeth_bridge_host_data *data = 1539 container_of(work, struct qeth_bridge_host_data, worker); 1540 int i; 1541 1542 if (data->hostevs.lost_event_mask) { 1543 dev_info(&data->card->gdev->dev, 1544 "Address notification from the HiperSockets Bridge Port stopped %s (%s)\n", 1545 data->card->dev->name, 1546 (data->hostevs.lost_event_mask == 0x01) 1547 ? "Overflow" 1548 : (data->hostevs.lost_event_mask == 0x02) 1549 ? "Bridge port state change" 1550 : "Unknown reason"); 1551 mutex_lock(&data->card->conf_mutex); 1552 data->card->options.sbp.hostnotification = 0; 1553 mutex_unlock(&data->card->conf_mutex); 1554 qeth_bridge_emit_host_event(data->card, anev_abort, 1555 0, NULL, NULL); 1556 } else 1557 for (i = 0; i < data->hostevs.num_entries; i++) { 1558 struct qeth_ipacmd_addr_change_entry *entry = 1559 &data->hostevs.entry[i]; 1560 qeth_bridge_emit_host_event(data->card, 1561 anev_reg_unreg, 1562 entry->change_code, 1563 &entry->token, &entry->addr_lnid); 1564 } 1565 kfree(data); 1566 } 1567 1568 static void qeth_bridge_host_event(struct qeth_card *card, 1569 struct qeth_ipa_cmd *cmd) 1570 { 1571 struct qeth_ipacmd_addr_change *hostevs = 1572 &cmd->data.addrchange; 1573 struct qeth_bridge_host_data *data; 1574 int extrasize; 1575 1576 QETH_CARD_TEXT(card, 2, "brhostev"); 1577 if (cmd->hdr.return_code != 0x0000) { 1578 if (cmd->hdr.return_code == 0x0010) { 1579 if (hostevs->lost_event_mask == 0x00) 1580 hostevs->lost_event_mask = 0xff; 1581 } else { 1582 QETH_CARD_TEXT_(card, 2, "BPHe%04x", 1583 cmd->hdr.return_code); 1584 return; 1585 } 1586 } 1587 extrasize = sizeof(struct qeth_ipacmd_addr_change_entry) * 1588 hostevs->num_entries; 1589 data = kzalloc(sizeof(struct qeth_bridge_host_data) + extrasize, 1590 GFP_ATOMIC); 1591 if (!data) { 1592 QETH_CARD_TEXT(card, 2, "BPHalloc"); 1593 return; 1594 } 1595 INIT_WORK(&data->worker, qeth_bridge_host_event_worker); 1596 data->card = card; 1597 memcpy(&data->hostevs, hostevs, 1598 sizeof(struct qeth_ipacmd_addr_change) + extrasize); 1599 queue_work(qeth_wq, &data->worker); 1600 } 1601 1602 /* SETBRIDGEPORT support; sending commands */ 1603 1604 struct _qeth_sbp_cbctl { 1605 u16 ipa_rc; 1606 u16 cmd_rc; 1607 union { 1608 u32 supported; 1609 struct { 1610 enum qeth_sbp_roles *role; 1611 enum qeth_sbp_states *state; 1612 } qports; 1613 } data; 1614 }; 1615 1616 /** 1617 * qeth_bridgeport_makerc() - derive "traditional" error from hardware codes. 1618 * @card: qeth_card structure pointer, for debug messages. 1619 * @cbctl: state structure with hardware return codes. 1620 * @setcmd: IPA command code 1621 * 1622 * Returns negative errno-compatible error indication or 0 on success. 1623 */ 1624 static int qeth_bridgeport_makerc(struct qeth_card *card, 1625 struct _qeth_sbp_cbctl *cbctl, enum qeth_ipa_sbp_cmd setcmd) 1626 { 1627 int rc; 1628 1629 switch (cbctl->ipa_rc) { 1630 case IPA_RC_SUCCESS: 1631 switch (cbctl->cmd_rc) { 1632 case 0x0000: 1633 rc = 0; 1634 break; 1635 case 0x0004: 1636 rc = -ENOSYS; 1637 break; 1638 case 0x000C: /* Not configured as bridge Port */ 1639 rc = -ENODEV; /* maybe not the best code here? */ 1640 dev_err(&card->gdev->dev, 1641 "The HiperSockets device is not configured as a Bridge Port\n"); 1642 break; 1643 case 0x0014: /* Another device is Primary */ 1644 switch (setcmd) { 1645 case IPA_SBP_SET_PRIMARY_BRIDGE_PORT: 1646 rc = -EEXIST; 1647 dev_err(&card->gdev->dev, 1648 "The HiperSockets LAN already has a primary Bridge Port\n"); 1649 break; 1650 case IPA_SBP_SET_SECONDARY_BRIDGE_PORT: 1651 rc = -EBUSY; 1652 dev_err(&card->gdev->dev, 1653 "The HiperSockets device is already a primary Bridge Port\n"); 1654 break; 1655 default: 1656 rc = -EIO; 1657 } 1658 break; 1659 case 0x0018: /* This device is currently Secondary */ 1660 rc = -EBUSY; 1661 dev_err(&card->gdev->dev, 1662 "The HiperSockets device is already a secondary Bridge Port\n"); 1663 break; 1664 case 0x001C: /* Limit for Secondary devices reached */ 1665 rc = -EEXIST; 1666 dev_err(&card->gdev->dev, 1667 "The HiperSockets LAN cannot have more secondary Bridge Ports\n"); 1668 break; 1669 case 0x0024: /* This device is currently Primary */ 1670 rc = -EBUSY; 1671 dev_err(&card->gdev->dev, 1672 "The HiperSockets device is already a primary Bridge Port\n"); 1673 break; 1674 case 0x0020: /* Not authorized by zManager */ 1675 rc = -EACCES; 1676 dev_err(&card->gdev->dev, 1677 "The HiperSockets device is not authorized to be a Bridge Port\n"); 1678 break; 1679 default: 1680 rc = -EIO; 1681 } 1682 break; 1683 case IPA_RC_NOTSUPP: 1684 rc = -ENOSYS; 1685 break; 1686 case IPA_RC_UNSUPPORTED_COMMAND: 1687 rc = -ENOSYS; 1688 break; 1689 default: 1690 rc = -EIO; 1691 } 1692 if (rc) { 1693 QETH_CARD_TEXT_(card, 2, "SBPi%04x", cbctl->ipa_rc); 1694 QETH_CARD_TEXT_(card, 2, "SBPc%04x", cbctl->cmd_rc); 1695 } 1696 return rc; 1697 } 1698 1699 static int qeth_bridgeport_query_support_cb(struct qeth_card *card, 1700 struct qeth_reply *reply, unsigned long data) 1701 { 1702 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1703 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1704 QETH_CARD_TEXT(card, 2, "brqsupcb"); 1705 cbctl->ipa_rc = cmd->hdr.return_code; 1706 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1707 if ((cbctl->ipa_rc == 0) && (cbctl->cmd_rc == 0)) { 1708 cbctl->data.supported = 1709 cmd->data.sbp.data.query_cmds_supp.supported_cmds; 1710 } else { 1711 cbctl->data.supported = 0; 1712 } 1713 return 0; 1714 } 1715 1716 /** 1717 * qeth_bridgeport_query_support() - store bitmask of supported subfunctions. 1718 * @card: qeth_card structure pointer. 1719 * 1720 * Sets bitmask of supported setbridgeport subfunctions in the qeth_card 1721 * strucutre: card->options.sbp.supported_funcs. 1722 */ 1723 static void qeth_bridgeport_query_support(struct qeth_card *card) 1724 { 1725 struct qeth_cmd_buffer *iob; 1726 struct qeth_ipa_cmd *cmd; 1727 struct _qeth_sbp_cbctl cbctl; 1728 1729 QETH_CARD_TEXT(card, 2, "brqsuppo"); 1730 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); 1731 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1732 cmd->data.sbp.hdr.cmdlength = 1733 sizeof(struct qeth_ipacmd_sbp_hdr) + 1734 sizeof(struct qeth_sbp_query_cmds_supp); 1735 cmd->data.sbp.hdr.command_code = 1736 IPA_SBP_QUERY_COMMANDS_SUPPORTED; 1737 cmd->data.sbp.hdr.used_total = 1; 1738 cmd->data.sbp.hdr.seq_no = 1; 1739 if (qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_support_cb, 1740 (void *)&cbctl) || 1741 qeth_bridgeport_makerc(card, &cbctl, 1742 IPA_SBP_QUERY_COMMANDS_SUPPORTED)) { 1743 /* non-zero makerc signifies failure, and produce messages */ 1744 card->options.sbp.role = QETH_SBP_ROLE_NONE; 1745 return; 1746 } 1747 card->options.sbp.supported_funcs = cbctl.data.supported; 1748 } 1749 1750 static int qeth_bridgeport_query_ports_cb(struct qeth_card *card, 1751 struct qeth_reply *reply, unsigned long data) 1752 { 1753 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 1754 struct qeth_sbp_query_ports *qports = &cmd->data.sbp.data.query_ports; 1755 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1756 1757 QETH_CARD_TEXT(card, 2, "brqprtcb"); 1758 cbctl->ipa_rc = cmd->hdr.return_code; 1759 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1760 if ((cbctl->ipa_rc != 0) || (cbctl->cmd_rc != 0)) 1761 return 0; 1762 if (qports->entry_length != sizeof(struct qeth_sbp_port_entry)) { 1763 cbctl->cmd_rc = 0xffff; 1764 QETH_CARD_TEXT_(card, 2, "SBPs%04x", qports->entry_length); 1765 return 0; 1766 } 1767 /* first entry contains the state of the local port */ 1768 if (qports->num_entries > 0) { 1769 if (cbctl->data.qports.role) 1770 *cbctl->data.qports.role = qports->entry[0].role; 1771 if (cbctl->data.qports.state) 1772 *cbctl->data.qports.state = qports->entry[0].state; 1773 } 1774 return 0; 1775 } 1776 1777 /** 1778 * qeth_bridgeport_query_ports() - query local bridgeport status. 1779 * @card: qeth_card structure pointer. 1780 * @role: Role of the port: 0-none, 1-primary, 2-secondary. 1781 * @state: State of the port: 0-inactive, 1-standby, 2-active. 1782 * 1783 * Returns negative errno-compatible error indication or 0 on success. 1784 * 1785 * 'role' and 'state' are not updated in case of hardware operation failure. 1786 */ 1787 int qeth_bridgeport_query_ports(struct qeth_card *card, 1788 enum qeth_sbp_roles *role, enum qeth_sbp_states *state) 1789 { 1790 int rc = 0; 1791 struct qeth_cmd_buffer *iob; 1792 struct qeth_ipa_cmd *cmd; 1793 struct _qeth_sbp_cbctl cbctl = { 1794 .data = { 1795 .qports = { 1796 .role = role, 1797 .state = state, 1798 }, 1799 }, 1800 }; 1801 1802 QETH_CARD_TEXT(card, 2, "brqports"); 1803 if (!(card->options.sbp.supported_funcs & IPA_SBP_QUERY_BRIDGE_PORTS)) 1804 return -EOPNOTSUPP; 1805 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); 1806 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1807 cmd->data.sbp.hdr.cmdlength = 1808 sizeof(struct qeth_ipacmd_sbp_hdr); 1809 cmd->data.sbp.hdr.command_code = 1810 IPA_SBP_QUERY_BRIDGE_PORTS; 1811 cmd->data.sbp.hdr.used_total = 1; 1812 cmd->data.sbp.hdr.seq_no = 1; 1813 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_query_ports_cb, 1814 (void *)&cbctl); 1815 if (rc) 1816 return rc; 1817 rc = qeth_bridgeport_makerc(card, &cbctl, IPA_SBP_QUERY_BRIDGE_PORTS); 1818 if (rc) 1819 return rc; 1820 return 0; 1821 } 1822 EXPORT_SYMBOL_GPL(qeth_bridgeport_query_ports); 1823 1824 static int qeth_bridgeport_set_cb(struct qeth_card *card, 1825 struct qeth_reply *reply, unsigned long data) 1826 { 1827 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 1828 struct _qeth_sbp_cbctl *cbctl = (struct _qeth_sbp_cbctl *)reply->param; 1829 QETH_CARD_TEXT(card, 2, "brsetrcb"); 1830 cbctl->ipa_rc = cmd->hdr.return_code; 1831 cbctl->cmd_rc = cmd->data.sbp.hdr.return_code; 1832 return 0; 1833 } 1834 1835 /** 1836 * qeth_bridgeport_setrole() - Assign primary role to the port. 1837 * @card: qeth_card structure pointer. 1838 * @role: Role to assign. 1839 * 1840 * Returns negative errno-compatible error indication or 0 on success. 1841 */ 1842 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role) 1843 { 1844 int rc = 0; 1845 int cmdlength; 1846 struct qeth_cmd_buffer *iob; 1847 struct qeth_ipa_cmd *cmd; 1848 struct _qeth_sbp_cbctl cbctl; 1849 enum qeth_ipa_sbp_cmd setcmd; 1850 1851 QETH_CARD_TEXT(card, 2, "brsetrol"); 1852 switch (role) { 1853 case QETH_SBP_ROLE_NONE: 1854 setcmd = IPA_SBP_RESET_BRIDGE_PORT_ROLE; 1855 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1856 sizeof(struct qeth_sbp_reset_role); 1857 break; 1858 case QETH_SBP_ROLE_PRIMARY: 1859 setcmd = IPA_SBP_SET_PRIMARY_BRIDGE_PORT; 1860 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1861 sizeof(struct qeth_sbp_set_primary); 1862 break; 1863 case QETH_SBP_ROLE_SECONDARY: 1864 setcmd = IPA_SBP_SET_SECONDARY_BRIDGE_PORT; 1865 cmdlength = sizeof(struct qeth_ipacmd_sbp_hdr) + 1866 sizeof(struct qeth_sbp_set_secondary); 1867 break; 1868 default: 1869 return -EINVAL; 1870 } 1871 if (!(card->options.sbp.supported_funcs & setcmd)) 1872 return -EOPNOTSUPP; 1873 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETBRIDGEPORT, 0); 1874 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 1875 cmd->data.sbp.hdr.cmdlength = cmdlength; 1876 cmd->data.sbp.hdr.command_code = setcmd; 1877 cmd->data.sbp.hdr.used_total = 1; 1878 cmd->data.sbp.hdr.seq_no = 1; 1879 rc = qeth_send_ipa_cmd(card, iob, qeth_bridgeport_set_cb, 1880 (void *)&cbctl); 1881 if (rc) 1882 return rc; 1883 rc = qeth_bridgeport_makerc(card, &cbctl, setcmd); 1884 return rc; 1885 } 1886 1887 /** 1888 * qeth_anset_makerc() - derive "traditional" error from hardware codes. 1889 * @card: qeth_card structure pointer, for debug messages. 1890 * 1891 * Returns negative errno-compatible error indication or 0 on success. 1892 */ 1893 static int qeth_anset_makerc(struct qeth_card *card, int pnso_rc, u16 response) 1894 { 1895 int rc; 1896 1897 if (pnso_rc == 0) 1898 switch (response) { 1899 case 0x0001: 1900 rc = 0; 1901 break; 1902 case 0x0004: 1903 case 0x0100: 1904 case 0x0106: 1905 rc = -ENOSYS; 1906 dev_err(&card->gdev->dev, 1907 "Setting address notification failed\n"); 1908 break; 1909 case 0x0107: 1910 rc = -EAGAIN; 1911 break; 1912 default: 1913 rc = -EIO; 1914 } 1915 else 1916 rc = -EIO; 1917 1918 if (rc) { 1919 QETH_CARD_TEXT_(card, 2, "SBPp%04x", pnso_rc); 1920 QETH_CARD_TEXT_(card, 2, "SBPr%04x", response); 1921 } 1922 return rc; 1923 } 1924 1925 static void qeth_bridgeport_an_set_cb(void *priv, 1926 enum qdio_brinfo_entry_type type, void *entry) 1927 { 1928 struct qeth_card *card = (struct qeth_card *)priv; 1929 struct qdio_brinfo_entry_l2 *l2entry; 1930 u8 code; 1931 1932 if (type != l2_addr_lnid) { 1933 WARN_ON_ONCE(1); 1934 return; 1935 } 1936 1937 l2entry = (struct qdio_brinfo_entry_l2 *)entry; 1938 code = IPA_ADDR_CHANGE_CODE_MACADDR; 1939 if (l2entry->addr_lnid.lnid) 1940 code |= IPA_ADDR_CHANGE_CODE_VLANID; 1941 qeth_bridge_emit_host_event(card, anev_reg_unreg, code, 1942 (struct net_if_token *)&l2entry->nit, 1943 (struct mac_addr_lnid *)&l2entry->addr_lnid); 1944 } 1945 1946 /** 1947 * qeth_bridgeport_an_set() - Enable or disable bridgeport address notification 1948 * @card: qeth_card structure pointer. 1949 * @enable: 0 - disable, non-zero - enable notifications 1950 * 1951 * Returns negative errno-compatible error indication or 0 on success. 1952 * 1953 * On enable, emits a series of address notifications udev events for all 1954 * currently registered hosts. 1955 */ 1956 int qeth_bridgeport_an_set(struct qeth_card *card, int enable) 1957 { 1958 int rc; 1959 u16 response; 1960 struct ccw_device *ddev; 1961 struct subchannel_id schid; 1962 1963 if (!card) 1964 return -EINVAL; 1965 if (!card->options.sbp.supported_funcs) 1966 return -EOPNOTSUPP; 1967 ddev = CARD_DDEV(card); 1968 ccw_device_get_schid(ddev, &schid); 1969 1970 if (enable) { 1971 qeth_bridge_emit_host_event(card, anev_reset, 0, NULL, NULL); 1972 rc = qdio_pnso_brinfo(schid, 1, &response, 1973 qeth_bridgeport_an_set_cb, card); 1974 } else 1975 rc = qdio_pnso_brinfo(schid, 0, &response, NULL, NULL); 1976 return qeth_anset_makerc(card, rc, response); 1977 } 1978 EXPORT_SYMBOL_GPL(qeth_bridgeport_an_set); 1979 1980 module_init(qeth_l2_init); 1981 module_exit(qeth_l2_exit); 1982 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 1983 MODULE_DESCRIPTION("qeth layer 2 discipline"); 1984 MODULE_LICENSE("GPL"); 1985