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