1/* 2 * linux/drivers/s390/net/qeth_main.c 3 * 4 * Linux on zSeries OSA Express and HiperSockets support 5 * 6 * Copyright 2000,2003 IBM Corporation 7 * 8 * Author(s): Original Code written by 9 * Utz Bacher (utz.bacher@de.ibm.com) 10 * Rewritten by 11 * Frank Pavlic (fpavlic@de.ibm.com) and 12 * Thomas Spatzier <tspat@de.ibm.com> 13 * 14 * This program is free software; you can redistribute it and/or modify 15 * it under the terms of the GNU General Public License as published by 16 * the Free Software Foundation; either version 2, or (at your option) 17 * any later version. 18 * 19 * This program is distributed in the hope that it will be useful, 20 * but WITHOUT ANY WARRANTY; without even the implied warranty of 21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 * GNU General Public License for more details. 23 * 24 * You should have received a copy of the GNU General Public License 25 * along with this program; if not, write to the Free Software 26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 27 */ 28 29 30#include <linux/module.h> 31#include <linux/moduleparam.h> 32#include <linux/string.h> 33#include <linux/errno.h> 34#include <linux/mm.h> 35#include <linux/ip.h> 36#include <linux/inetdevice.h> 37#include <linux/netdevice.h> 38#include <linux/sched.h> 39#include <linux/workqueue.h> 40#include <linux/kernel.h> 41#include <linux/slab.h> 42#include <linux/interrupt.h> 43#include <linux/tcp.h> 44#include <linux/icmp.h> 45#include <linux/skbuff.h> 46#include <linux/in.h> 47#include <linux/igmp.h> 48#include <linux/init.h> 49#include <linux/reboot.h> 50#include <linux/mii.h> 51#include <linux/rcupdate.h> 52#include <linux/ethtool.h> 53 54#include <net/arp.h> 55#include <net/ip.h> 56#include <net/route.h> 57 58#include <asm/ebcdic.h> 59#include <asm/io.h> 60#include <asm/qeth.h> 61#include <asm/timex.h> 62#include <asm/semaphore.h> 63#include <asm/uaccess.h> 64#include <asm/s390_rdev.h> 65 66#include "qeth.h" 67#include "qeth_mpc.h" 68#include "qeth_fs.h" 69#include "qeth_eddp.h" 70#include "qeth_tso.h" 71 72static const char *version = "qeth S/390 OSA-Express driver"; 73 74/** 75 * Debug Facility Stuff 76 */ 77static debug_info_t *qeth_dbf_setup = NULL; 78static debug_info_t *qeth_dbf_data = NULL; 79static debug_info_t *qeth_dbf_misc = NULL; 80static debug_info_t *qeth_dbf_control = NULL; 81debug_info_t *qeth_dbf_trace = NULL; 82static debug_info_t *qeth_dbf_sense = NULL; 83static debug_info_t *qeth_dbf_qerr = NULL; 84 85DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf); 86 87static struct lock_class_key qdio_out_skb_queue_key; 88 89/** 90 * some more definitions and declarations 91 */ 92static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY; 93 94/* list of our cards */ 95struct qeth_card_list_struct qeth_card_list; 96/*process list want to be notified*/ 97spinlock_t qeth_notify_lock; 98struct list_head qeth_notify_list; 99 100static void qeth_send_control_data_cb(struct qeth_channel *, 101 struct qeth_cmd_buffer *); 102 103/** 104 * here we go with function implementation 105 */ 106static void 107qeth_init_qdio_info(struct qeth_card *card); 108 109static int 110qeth_init_qdio_queues(struct qeth_card *card); 111 112static int 113qeth_alloc_qdio_buffers(struct qeth_card *card); 114 115static void 116qeth_free_qdio_buffers(struct qeth_card *); 117 118static void 119qeth_clear_qdio_buffers(struct qeth_card *); 120 121static void 122qeth_clear_ip_list(struct qeth_card *, int, int); 123 124static void 125qeth_clear_ipacmd_list(struct qeth_card *); 126 127static int 128qeth_qdio_clear_card(struct qeth_card *, int); 129 130static void 131qeth_clear_working_pool_list(struct qeth_card *); 132 133static void 134qeth_clear_cmd_buffers(struct qeth_channel *); 135 136static int 137qeth_stop(struct net_device *); 138 139static void 140qeth_clear_ipato_list(struct qeth_card *); 141 142static int 143qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *); 144 145static void 146qeth_irq_tasklet(unsigned long); 147 148static int 149qeth_set_online(struct ccwgroup_device *); 150 151static int 152__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode); 153 154static struct qeth_ipaddr * 155qeth_get_addr_buffer(enum qeth_prot_versions); 156 157static void 158qeth_set_multicast_list(struct net_device *); 159 160static void 161qeth_setadp_promisc_mode(struct qeth_card *); 162 163static void 164qeth_notify_processes(void) 165{ 166 /*notify all registered processes */ 167 struct qeth_notify_list_struct *n_entry; 168 169 QETH_DBF_TEXT(trace,3,"procnoti"); 170 spin_lock(&qeth_notify_lock); 171 list_for_each_entry(n_entry, &qeth_notify_list, list) { 172 send_sig(n_entry->signum, n_entry->task, 1); 173 } 174 spin_unlock(&qeth_notify_lock); 175 176} 177int 178qeth_notifier_unregister(struct task_struct *p) 179{ 180 struct qeth_notify_list_struct *n_entry, *tmp; 181 182 QETH_DBF_TEXT(trace, 2, "notunreg"); 183 spin_lock(&qeth_notify_lock); 184 list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) { 185 if (n_entry->task == p) { 186 list_del(&n_entry->list); 187 kfree(n_entry); 188 goto out; 189 } 190 } 191out: 192 spin_unlock(&qeth_notify_lock); 193 return 0; 194} 195int 196qeth_notifier_register(struct task_struct *p, int signum) 197{ 198 struct qeth_notify_list_struct *n_entry; 199 200 /*check first if entry already exists*/ 201 spin_lock(&qeth_notify_lock); 202 list_for_each_entry(n_entry, &qeth_notify_list, list) { 203 if (n_entry->task == p) { 204 n_entry->signum = signum; 205 spin_unlock(&qeth_notify_lock); 206 return 0; 207 } 208 } 209 spin_unlock(&qeth_notify_lock); 210 211 n_entry = (struct qeth_notify_list_struct *) 212 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL); 213 if (!n_entry) 214 return -ENOMEM; 215 n_entry->task = p; 216 n_entry->signum = signum; 217 spin_lock(&qeth_notify_lock); 218 list_add(&n_entry->list,&qeth_notify_list); 219 spin_unlock(&qeth_notify_lock); 220 return 0; 221} 222 223 224/** 225 * free channel command buffers 226 */ 227static void 228qeth_clean_channel(struct qeth_channel *channel) 229{ 230 int cnt; 231 232 QETH_DBF_TEXT(setup, 2, "freech"); 233 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) 234 kfree(channel->iob[cnt].data); 235} 236 237/** 238 * free card 239 */ 240static void 241qeth_free_card(struct qeth_card *card) 242{ 243 244 QETH_DBF_TEXT(setup, 2, "freecrd"); 245 QETH_DBF_HEX(setup, 2, &card, sizeof(void *)); 246 qeth_clean_channel(&card->read); 247 qeth_clean_channel(&card->write); 248 if (card->dev) 249 free_netdev(card->dev); 250 qeth_clear_ip_list(card, 0, 0); 251 qeth_clear_ipato_list(card); 252 kfree(card->ip_tbd_list); 253 qeth_free_qdio_buffers(card); 254 kfree(card); 255} 256 257/** 258 * alloc memory for command buffer per channel 259 */ 260static int 261qeth_setup_channel(struct qeth_channel *channel) 262{ 263 int cnt; 264 265 QETH_DBF_TEXT(setup, 2, "setupch"); 266 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) { 267 channel->iob[cnt].data = (char *) 268 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); 269 if (channel->iob[cnt].data == NULL) 270 break; 271 channel->iob[cnt].state = BUF_STATE_FREE; 272 channel->iob[cnt].channel = channel; 273 channel->iob[cnt].callback = qeth_send_control_data_cb; 274 channel->iob[cnt].rc = 0; 275 } 276 if (cnt < QETH_CMD_BUFFER_NO) { 277 while (cnt-- > 0) 278 kfree(channel->iob[cnt].data); 279 return -ENOMEM; 280 } 281 channel->buf_no = 0; 282 channel->io_buf_no = 0; 283 atomic_set(&channel->irq_pending, 0); 284 spin_lock_init(&channel->iob_lock); 285 286 init_waitqueue_head(&channel->wait_q); 287 channel->irq_tasklet.data = (unsigned long) channel; 288 channel->irq_tasklet.func = qeth_irq_tasklet; 289 return 0; 290} 291 292/** 293 * alloc memory for card structure 294 */ 295static struct qeth_card * 296qeth_alloc_card(void) 297{ 298 struct qeth_card *card; 299 300 QETH_DBF_TEXT(setup, 2, "alloccrd"); 301 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); 302 if (!card) 303 return NULL; 304 QETH_DBF_HEX(setup, 2, &card, sizeof(void *)); 305 if (qeth_setup_channel(&card->read)) { 306 kfree(card); 307 return NULL; 308 } 309 if (qeth_setup_channel(&card->write)) { 310 qeth_clean_channel(&card->read); 311 kfree(card); 312 return NULL; 313 } 314 return card; 315} 316 317static long 318__qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm, 319 struct irb *irb) 320{ 321 if (!IS_ERR(irb)) 322 return 0; 323 324 switch (PTR_ERR(irb)) { 325 case -EIO: 326 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id); 327 QETH_DBF_TEXT(trace, 2, "ckirberr"); 328 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO); 329 break; 330 case -ETIMEDOUT: 331 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id); 332 QETH_DBF_TEXT(trace, 2, "ckirberr"); 333 QETH_DBF_TEXT_(trace, 2, " rc%d", -ETIMEDOUT); 334 if (intparm == QETH_RCD_PARM) { 335 struct qeth_card *card = CARD_FROM_CDEV(cdev); 336 337 if (card && (card->data.ccwdev == cdev)) { 338 card->data.state = CH_STATE_DOWN; 339 wake_up(&card->wait_q); 340 } 341 } 342 break; 343 default: 344 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb), 345 cdev->dev.bus_id); 346 QETH_DBF_TEXT(trace, 2, "ckirberr"); 347 QETH_DBF_TEXT(trace, 2, " rc???"); 348 } 349 return PTR_ERR(irb); 350} 351 352static int 353qeth_get_problem(struct ccw_device *cdev, struct irb *irb) 354{ 355 int dstat,cstat; 356 char *sense; 357 358 sense = (char *) irb->ecw; 359 cstat = irb->scsw.cstat; 360 dstat = irb->scsw.dstat; 361 362 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | 363 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | 364 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { 365 QETH_DBF_TEXT(trace,2, "CGENCHK"); 366 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ", 367 cdev->dev.bus_id, dstat, cstat); 368 HEXDUMP16(WARN, "irb: ", irb); 369 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32); 370 return 1; 371 } 372 373 if (dstat & DEV_STAT_UNIT_CHECK) { 374 if (sense[SENSE_RESETTING_EVENT_BYTE] & 375 SENSE_RESETTING_EVENT_FLAG) { 376 QETH_DBF_TEXT(trace,2,"REVIND"); 377 return 1; 378 } 379 if (sense[SENSE_COMMAND_REJECT_BYTE] & 380 SENSE_COMMAND_REJECT_FLAG) { 381 QETH_DBF_TEXT(trace,2,"CMDREJi"); 382 return 0; 383 } 384 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { 385 QETH_DBF_TEXT(trace,2,"AFFE"); 386 return 1; 387 } 388 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { 389 QETH_DBF_TEXT(trace,2,"ZEROSEN"); 390 return 0; 391 } 392 QETH_DBF_TEXT(trace,2,"DGENCHK"); 393 return 1; 394 } 395 return 0; 396} 397static int qeth_issue_next_read(struct qeth_card *); 398 399/** 400 * interrupt handler 401 */ 402static void 403qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) 404{ 405 int rc; 406 int cstat,dstat; 407 struct qeth_cmd_buffer *buffer; 408 struct qeth_channel *channel; 409 struct qeth_card *card; 410 411 QETH_DBF_TEXT(trace,5,"irq"); 412 413 if (__qeth_check_irb_error(cdev, intparm, irb)) 414 return; 415 cstat = irb->scsw.cstat; 416 dstat = irb->scsw.dstat; 417 418 card = CARD_FROM_CDEV(cdev); 419 if (!card) 420 return; 421 422 if (card->read.ccwdev == cdev){ 423 channel = &card->read; 424 QETH_DBF_TEXT(trace,5,"read"); 425 } else if (card->write.ccwdev == cdev) { 426 channel = &card->write; 427 QETH_DBF_TEXT(trace,5,"write"); 428 } else { 429 channel = &card->data; 430 QETH_DBF_TEXT(trace,5,"data"); 431 } 432 atomic_set(&channel->irq_pending, 0); 433 434 if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC)) 435 channel->state = CH_STATE_STOPPED; 436 437 if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC)) 438 channel->state = CH_STATE_HALTED; 439 440 /*let's wake up immediately on data channel*/ 441 if ((channel == &card->data) && (intparm != 0) && 442 (intparm != QETH_RCD_PARM)) 443 goto out; 444 445 if (intparm == QETH_CLEAR_CHANNEL_PARM) { 446 QETH_DBF_TEXT(trace, 6, "clrchpar"); 447 /* we don't have to handle this further */ 448 intparm = 0; 449 } 450 if (intparm == QETH_HALT_CHANNEL_PARM) { 451 QETH_DBF_TEXT(trace, 6, "hltchpar"); 452 /* we don't have to handle this further */ 453 intparm = 0; 454 } 455 if ((dstat & DEV_STAT_UNIT_EXCEP) || 456 (dstat & DEV_STAT_UNIT_CHECK) || 457 (cstat)) { 458 if (irb->esw.esw0.erw.cons) { 459 /* TODO: we should make this s390dbf */ 460 PRINT_WARN("sense data available on channel %s.\n", 461 CHANNEL_ID(channel)); 462 PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat); 463 HEXDUMP16(WARN,"irb: ",irb); 464 HEXDUMP16(WARN,"sense data: ",irb->ecw); 465 } 466 if (intparm == QETH_RCD_PARM) { 467 channel->state = CH_STATE_DOWN; 468 goto out; 469 } 470 rc = qeth_get_problem(cdev,irb); 471 if (rc) { 472 qeth_schedule_recovery(card); 473 goto out; 474 } 475 } 476 477 if (intparm == QETH_RCD_PARM) { 478 channel->state = CH_STATE_RCD_DONE; 479 goto out; 480 } 481 if (intparm) { 482 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); 483 buffer->state = BUF_STATE_PROCESSED; 484 } 485 if (channel == &card->data) 486 return; 487 488 if (channel == &card->read && 489 channel->state == CH_STATE_UP) 490 qeth_issue_next_read(card); 491 492 qeth_irq_tasklet((unsigned long)channel); 493 return; 494out: 495 wake_up(&card->wait_q); 496} 497 498/** 499 * tasklet function scheduled from irq handler 500 */ 501static void 502qeth_irq_tasklet(unsigned long data) 503{ 504 struct qeth_card *card; 505 struct qeth_channel *channel; 506 struct qeth_cmd_buffer *iob; 507 __u8 index; 508 509 QETH_DBF_TEXT(trace,5,"irqtlet"); 510 channel = (struct qeth_channel *) data; 511 iob = channel->iob; 512 index = channel->buf_no; 513 card = CARD_FROM_CDEV(channel->ccwdev); 514 while (iob[index].state == BUF_STATE_PROCESSED) { 515 if (iob[index].callback !=NULL) { 516 iob[index].callback(channel,iob + index); 517 } 518 index = (index + 1) % QETH_CMD_BUFFER_NO; 519 } 520 channel->buf_no = index; 521 wake_up(&card->wait_q); 522} 523 524static int qeth_stop_card(struct qeth_card *, int); 525 526static int 527__qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode) 528{ 529 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data; 530 int rc = 0, rc2 = 0, rc3 = 0; 531 enum qeth_card_states recover_flag; 532 533 QETH_DBF_TEXT(setup, 3, "setoffl"); 534 QETH_DBF_HEX(setup, 3, &card, sizeof(void *)); 535 536 if (card->dev && netif_carrier_ok(card->dev)) 537 netif_carrier_off(card->dev); 538 recover_flag = card->state; 539 if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){ 540 PRINT_WARN("Stopping card %s interrupted by user!\n", 541 CARD_BUS_ID(card)); 542 return -ERESTARTSYS; 543 } 544 rc = ccw_device_set_offline(CARD_DDEV(card)); 545 rc2 = ccw_device_set_offline(CARD_WDEV(card)); 546 rc3 = ccw_device_set_offline(CARD_RDEV(card)); 547 if (!rc) 548 rc = (rc2) ? rc2 : rc3; 549 if (rc) 550 QETH_DBF_TEXT_(setup, 2, "1err%d", rc); 551 if (recover_flag == CARD_STATE_UP) 552 card->state = CARD_STATE_RECOVER; 553 qeth_notify_processes(); 554 return 0; 555} 556 557static int 558qeth_set_offline(struct ccwgroup_device *cgdev) 559{ 560 return __qeth_set_offline(cgdev, 0); 561} 562 563static int 564qeth_wait_for_threads(struct qeth_card *card, unsigned long threads); 565 566 567static void 568qeth_remove_device(struct ccwgroup_device *cgdev) 569{ 570 struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data; 571 unsigned long flags; 572 573 QETH_DBF_TEXT(setup, 3, "rmdev"); 574 QETH_DBF_HEX(setup, 3, &card, sizeof(void *)); 575 576 if (!card) 577 return; 578 579 if (qeth_wait_for_threads(card, 0xffffffff)) 580 return; 581 582 if (cgdev->state == CCWGROUP_ONLINE){ 583 card->use_hard_stop = 1; 584 qeth_set_offline(cgdev); 585 } 586 /* remove form our internal list */ 587 write_lock_irqsave(&qeth_card_list.rwlock, flags); 588 list_del(&card->list); 589 write_unlock_irqrestore(&qeth_card_list.rwlock, flags); 590 if (card->dev) 591 unregister_netdev(card->dev); 592 qeth_remove_device_attributes(&cgdev->dev); 593 qeth_free_card(card); 594 cgdev->dev.driver_data = NULL; 595 put_device(&cgdev->dev); 596} 597 598static int 599qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *); 600static int 601qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *); 602 603/** 604 * Add/remove address to/from card's ip list, i.e. try to add or remove 605 * reference to/from an IP address that is already registered on the card. 606 * Returns: 607 * 0 address was on card and its reference count has been adjusted, 608 * but is still > 0, so nothing has to be done 609 * also returns 0 if card was not on card and the todo was to delete 610 * the address -> there is also nothing to be done 611 * 1 address was not on card and the todo is to add it to the card's ip 612 * list 613 * -1 address was on card and its reference count has been decremented 614 * to <= 0 by the todo -> address must be removed from card 615 */ 616static int 617__qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo, 618 struct qeth_ipaddr **__addr) 619{ 620 struct qeth_ipaddr *addr; 621 int found = 0; 622 623 list_for_each_entry(addr, &card->ip_list, entry) { 624 if (card->options.layer2) { 625 if ((addr->type == todo->type) && 626 (memcmp(&addr->mac, &todo->mac, 627 OSA_ADDR_LEN) == 0)) { 628 found = 1; 629 break; 630 } 631 continue; 632 } 633 if ((addr->proto == QETH_PROT_IPV4) && 634 (todo->proto == QETH_PROT_IPV4) && 635 (addr->type == todo->type) && 636 (addr->u.a4.addr == todo->u.a4.addr) && 637 (addr->u.a4.mask == todo->u.a4.mask)) { 638 found = 1; 639 break; 640 } 641 if ((addr->proto == QETH_PROT_IPV6) && 642 (todo->proto == QETH_PROT_IPV6) && 643 (addr->type == todo->type) && 644 (addr->u.a6.pfxlen == todo->u.a6.pfxlen) && 645 (memcmp(&addr->u.a6.addr, &todo->u.a6.addr, 646 sizeof(struct in6_addr)) == 0)) { 647 found = 1; 648 break; 649 } 650 } 651 if (found) { 652 addr->users += todo->users; 653 if (addr->users <= 0){ 654 *__addr = addr; 655 return -1; 656 } else { 657 /* for VIPA and RXIP limit refcount to 1 */ 658 if (addr->type != QETH_IP_TYPE_NORMAL) 659 addr->users = 1; 660 return 0; 661 } 662 } 663 if (todo->users > 0) { 664 /* for VIPA and RXIP limit refcount to 1 */ 665 if (todo->type != QETH_IP_TYPE_NORMAL) 666 todo->users = 1; 667 return 1; 668 } else 669 return 0; 670} 671 672static int 673__qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr, 674 int same_type) 675{ 676 struct qeth_ipaddr *tmp; 677 678 list_for_each_entry(tmp, list, entry) { 679 if ((tmp->proto == QETH_PROT_IPV4) && 680 (addr->proto == QETH_PROT_IPV4) && 681 ((same_type && (tmp->type == addr->type)) || 682 (!same_type && (tmp->type != addr->type)) ) && 683 (tmp->u.a4.addr == addr->u.a4.addr) ){ 684 return 1; 685 } 686 if ((tmp->proto == QETH_PROT_IPV6) && 687 (addr->proto == QETH_PROT_IPV6) && 688 ((same_type && (tmp->type == addr->type)) || 689 (!same_type && (tmp->type != addr->type)) ) && 690 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr, 691 sizeof(struct in6_addr)) == 0) ) { 692 return 1; 693 } 694 } 695 return 0; 696} 697 698/* 699 * Add IP to be added to todo list. If there is already an "add todo" 700 * in this list we just incremenent the reference count. 701 * Returns 0 if we just incremented reference count. 702 */ 703static int 704__qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add) 705{ 706 struct qeth_ipaddr *tmp, *t; 707 int found = 0; 708 709 list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) { 710 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) && 711 (tmp->type == QETH_IP_TYPE_DEL_ALL_MC)) 712 return 0; 713 if (card->options.layer2) { 714 if ((tmp->type == addr->type) && 715 (tmp->is_multicast == addr->is_multicast) && 716 (memcmp(&tmp->mac, &addr->mac, 717 OSA_ADDR_LEN) == 0)) { 718 found = 1; 719 break; 720 } 721 continue; 722 } 723 if ((tmp->proto == QETH_PROT_IPV4) && 724 (addr->proto == QETH_PROT_IPV4) && 725 (tmp->type == addr->type) && 726 (tmp->is_multicast == addr->is_multicast) && 727 (tmp->u.a4.addr == addr->u.a4.addr) && 728 (tmp->u.a4.mask == addr->u.a4.mask)) { 729 found = 1; 730 break; 731 } 732 if ((tmp->proto == QETH_PROT_IPV6) && 733 (addr->proto == QETH_PROT_IPV6) && 734 (tmp->type == addr->type) && 735 (tmp->is_multicast == addr->is_multicast) && 736 (tmp->u.a6.pfxlen == addr->u.a6.pfxlen) && 737 (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr, 738 sizeof(struct in6_addr)) == 0)) { 739 found = 1; 740 break; 741 } 742 } 743 if (found){ 744 if (addr->users != 0) 745 tmp->users += addr->users; 746 else 747 tmp->users += add? 1:-1; 748 if (tmp->users == 0) { 749 list_del(&tmp->entry); 750 kfree(tmp); 751 } 752 return 0; 753 } else { 754 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC) 755 list_add(&addr->entry, card->ip_tbd_list); 756 else { 757 if (addr->users == 0) 758 addr->users += add? 1:-1; 759 if (add && (addr->type == QETH_IP_TYPE_NORMAL) && 760 qeth_is_addr_covered_by_ipato(card, addr)){ 761 QETH_DBF_TEXT(trace, 2, "tkovaddr"); 762 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG; 763 } 764 list_add_tail(&addr->entry, card->ip_tbd_list); 765 } 766 return 1; 767 } 768} 769 770/** 771 * Remove IP address from list 772 */ 773static int 774qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr) 775{ 776 unsigned long flags; 777 int rc = 0; 778 779 QETH_DBF_TEXT(trace, 4, "delip"); 780 781 if (card->options.layer2) 782 QETH_DBF_HEX(trace, 4, &addr->mac, 6); 783 else if (addr->proto == QETH_PROT_IPV4) 784 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4); 785 else { 786 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8); 787 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8); 788 } 789 spin_lock_irqsave(&card->ip_lock, flags); 790 rc = __qeth_insert_ip_todo(card, addr, 0); 791 spin_unlock_irqrestore(&card->ip_lock, flags); 792 return rc; 793} 794 795static int 796qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr) 797{ 798 unsigned long flags; 799 int rc = 0; 800 801 QETH_DBF_TEXT(trace, 4, "addip"); 802 if (card->options.layer2) 803 QETH_DBF_HEX(trace, 4, &addr->mac, 6); 804 else if (addr->proto == QETH_PROT_IPV4) 805 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4); 806 else { 807 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8); 808 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8); 809 } 810 spin_lock_irqsave(&card->ip_lock, flags); 811 rc = __qeth_insert_ip_todo(card, addr, 1); 812 spin_unlock_irqrestore(&card->ip_lock, flags); 813 return rc; 814} 815 816static void 817__qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags) 818{ 819 struct qeth_ipaddr *addr, *tmp; 820 int rc; 821again: 822 list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) { 823 if (addr->is_multicast) { 824 spin_unlock_irqrestore(&card->ip_lock, *flags); 825 rc = qeth_deregister_addr_entry(card, addr); 826 spin_lock_irqsave(&card->ip_lock, *flags); 827 if (!rc) { 828 list_del(&addr->entry); 829 kfree(addr); 830 goto again; 831 } 832 } 833 } 834} 835 836static void 837qeth_set_ip_addr_list(struct qeth_card *card) 838{ 839 struct list_head *tbd_list; 840 struct qeth_ipaddr *todo, *addr; 841 unsigned long flags; 842 int rc; 843 844 QETH_DBF_TEXT(trace, 2, "sdiplist"); 845 QETH_DBF_HEX(trace, 2, &card, sizeof(void *)); 846 847 spin_lock_irqsave(&card->ip_lock, flags); 848 tbd_list = card->ip_tbd_list; 849 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC); 850 if (!card->ip_tbd_list) { 851 QETH_DBF_TEXT(trace, 0, "silnomem"); 852 card->ip_tbd_list = tbd_list; 853 spin_unlock_irqrestore(&card->ip_lock, flags); 854 return; 855 } else 856 INIT_LIST_HEAD(card->ip_tbd_list); 857 858 while (!list_empty(tbd_list)){ 859 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry); 860 list_del(&todo->entry); 861 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){ 862 __qeth_delete_all_mc(card, &flags); 863 kfree(todo); 864 continue; 865 } 866 rc = __qeth_ref_ip_on_card(card, todo, &addr); 867 if (rc == 0) { 868 /* nothing to be done; only adjusted refcount */ 869 kfree(todo); 870 } else if (rc == 1) { 871 /* new entry to be added to on-card list */ 872 spin_unlock_irqrestore(&card->ip_lock, flags); 873 rc = qeth_register_addr_entry(card, todo); 874 spin_lock_irqsave(&card->ip_lock, flags); 875 if (!rc) 876 list_add_tail(&todo->entry, &card->ip_list); 877 else 878 kfree(todo); 879 } else if (rc == -1) { 880 /* on-card entry to be removed */ 881 list_del_init(&addr->entry); 882 spin_unlock_irqrestore(&card->ip_lock, flags); 883 rc = qeth_deregister_addr_entry(card, addr); 884 spin_lock_irqsave(&card->ip_lock, flags); 885 if (!rc) 886 kfree(addr); 887 else 888 list_add_tail(&addr->entry, &card->ip_list); 889 kfree(todo); 890 } 891 } 892 spin_unlock_irqrestore(&card->ip_lock, flags); 893 kfree(tbd_list); 894} 895 896static void qeth_delete_mc_addresses(struct qeth_card *); 897static void qeth_add_multicast_ipv4(struct qeth_card *); 898static void qeth_layer2_add_multicast(struct qeth_card *); 899#ifdef CONFIG_QETH_IPV6 900static void qeth_add_multicast_ipv6(struct qeth_card *); 901#endif 902 903static int 904qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread) 905{ 906 unsigned long flags; 907 908 spin_lock_irqsave(&card->thread_mask_lock, flags); 909 if ( !(card->thread_allowed_mask & thread) || 910 (card->thread_start_mask & thread) ) { 911 spin_unlock_irqrestore(&card->thread_mask_lock, flags); 912 return -EPERM; 913 } 914 card->thread_start_mask |= thread; 915 spin_unlock_irqrestore(&card->thread_mask_lock, flags); 916 return 0; 917} 918 919static void 920qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) 921{ 922 unsigned long flags; 923 924 spin_lock_irqsave(&card->thread_mask_lock, flags); 925 card->thread_start_mask &= ~thread; 926 spin_unlock_irqrestore(&card->thread_mask_lock, flags); 927 wake_up(&card->wait_q); 928} 929 930static void 931qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) 932{ 933 unsigned long flags; 934 935 spin_lock_irqsave(&card->thread_mask_lock, flags); 936 card->thread_running_mask &= ~thread; 937 spin_unlock_irqrestore(&card->thread_mask_lock, flags); 938 wake_up(&card->wait_q); 939} 940 941static int 942__qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 943{ 944 unsigned long flags; 945 int rc = 0; 946 947 spin_lock_irqsave(&card->thread_mask_lock, flags); 948 if (card->thread_start_mask & thread){ 949 if ((card->thread_allowed_mask & thread) && 950 !(card->thread_running_mask & thread)){ 951 rc = 1; 952 card->thread_start_mask &= ~thread; 953 card->thread_running_mask |= thread; 954 } else 955 rc = -EPERM; 956 } 957 spin_unlock_irqrestore(&card->thread_mask_lock, flags); 958 return rc; 959} 960 961static int 962qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 963{ 964 int rc = 0; 965 966 wait_event(card->wait_q, 967 (rc = __qeth_do_run_thread(card, thread)) >= 0); 968 return rc; 969} 970 971static int 972qeth_recover(void *ptr) 973{ 974 struct qeth_card *card; 975 int rc = 0; 976 977 card = (struct qeth_card *) ptr; 978 daemonize("qeth_recover"); 979 QETH_DBF_TEXT(trace,2,"recover1"); 980 QETH_DBF_HEX(trace, 2, &card, sizeof(void *)); 981 if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD)) 982 return 0; 983 QETH_DBF_TEXT(trace,2,"recover2"); 984 PRINT_WARN("Recovery of device %s started ...\n", 985 CARD_BUS_ID(card)); 986 card->use_hard_stop = 1; 987 __qeth_set_offline(card->gdev,1); 988 rc = __qeth_set_online(card->gdev,1); 989 /* don't run another scheduled recovery */ 990 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 991 qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD); 992 if (!rc) 993 PRINT_INFO("Device %s successfully recovered!\n", 994 CARD_BUS_ID(card)); 995 else 996 PRINT_INFO("Device %s could not be recovered!\n", 997 CARD_BUS_ID(card)); 998 return 0; 999} 1000 1001void 1002qeth_schedule_recovery(struct qeth_card *card) 1003{ 1004 QETH_DBF_TEXT(trace,2,"startrec"); 1005 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) 1006 schedule_work(&card->kernel_thread_starter); 1007} 1008 1009static int 1010qeth_do_start_thread(struct qeth_card *card, unsigned long thread) 1011{ 1012 unsigned long flags; 1013 int rc = 0; 1014 1015 spin_lock_irqsave(&card->thread_mask_lock, flags); 1016 QETH_DBF_TEXT_(trace, 4, " %02x%02x%02x", 1017 (u8) card->thread_start_mask, 1018 (u8) card->thread_allowed_mask, 1019 (u8) card->thread_running_mask); 1020 rc = (card->thread_start_mask & thread); 1021 spin_unlock_irqrestore(&card->thread_mask_lock, flags); 1022 return rc; 1023} 1024 1025static void 1026qeth_start_kernel_thread(struct work_struct *work) 1027{ 1028 struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter); 1029 QETH_DBF_TEXT(trace , 2, "strthrd"); 1030 1031 if (card->read.state != CH_STATE_UP && 1032 card->write.state != CH_STATE_UP) 1033 return; 1034 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) 1035 kernel_thread(qeth_recover, (void *) card, SIGCHLD); 1036} 1037 1038 1039static void 1040qeth_set_intial_options(struct qeth_card *card) 1041{ 1042 card->options.route4.type = NO_ROUTER; 1043#ifdef CONFIG_QETH_IPV6 1044 card->options.route6.type = NO_ROUTER; 1045#endif /* QETH_IPV6 */ 1046 card->options.checksum_type = QETH_CHECKSUM_DEFAULT; 1047 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; 1048 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; 1049 card->options.fake_broadcast = 0; 1050 card->options.add_hhlen = DEFAULT_ADD_HHLEN; 1051 card->options.fake_ll = 0; 1052 if (card->info.type == QETH_CARD_TYPE_OSN) 1053 card->options.layer2 = 1; 1054 else 1055 card->options.layer2 = 0; 1056 card->options.performance_stats = 0; 1057} 1058 1059/** 1060 * initialize channels ,card and all state machines 1061 */ 1062static int 1063qeth_setup_card(struct qeth_card *card) 1064{ 1065 1066 QETH_DBF_TEXT(setup, 2, "setupcrd"); 1067 QETH_DBF_HEX(setup, 2, &card, sizeof(void *)); 1068 1069 card->read.state = CH_STATE_DOWN; 1070 card->write.state = CH_STATE_DOWN; 1071 card->data.state = CH_STATE_DOWN; 1072 card->state = CARD_STATE_DOWN; 1073 card->lan_online = 0; 1074 card->use_hard_stop = 0; 1075 card->dev = NULL; 1076#ifdef CONFIG_QETH_VLAN 1077 spin_lock_init(&card->vlanlock); 1078 card->vlangrp = NULL; 1079#endif 1080 spin_lock_init(&card->lock); 1081 spin_lock_init(&card->ip_lock); 1082 spin_lock_init(&card->thread_mask_lock); 1083 card->thread_start_mask = 0; 1084 card->thread_allowed_mask = 0; 1085 card->thread_running_mask = 0; 1086 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); 1087 INIT_LIST_HEAD(&card->ip_list); 1088 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); 1089 if (!card->ip_tbd_list) { 1090 QETH_DBF_TEXT(setup, 0, "iptbdnom"); 1091 return -ENOMEM; 1092 } 1093 INIT_LIST_HEAD(card->ip_tbd_list); 1094 INIT_LIST_HEAD(&card->cmd_waiter_list); 1095 init_waitqueue_head(&card->wait_q); 1096 /* intial options */ 1097 qeth_set_intial_options(card); 1098 /* IP address takeover */ 1099 INIT_LIST_HEAD(&card->ipato.entries); 1100 card->ipato.enabled = 0; 1101 card->ipato.invert4 = 0; 1102 card->ipato.invert6 = 0; 1103 /* init QDIO stuff */ 1104 qeth_init_qdio_info(card); 1105 return 0; 1106} 1107 1108static int 1109is_1920_device (struct qeth_card *card) 1110{ 1111 int single_queue = 0; 1112 struct ccw_device *ccwdev; 1113 struct channelPath_dsc { 1114 u8 flags; 1115 u8 lsn; 1116 u8 desc; 1117 u8 chpid; 1118 u8 swla; 1119 u8 zeroes; 1120 u8 chla; 1121 u8 chpp; 1122 } *chp_dsc; 1123 1124 QETH_DBF_TEXT(setup, 2, "chk_1920"); 1125 1126 ccwdev = card->data.ccwdev; 1127 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); 1128 if (chp_dsc != NULL) { 1129 /* CHPP field bit 6 == 1 -> single queue */ 1130 single_queue = ((chp_dsc->chpp & 0x02) == 0x02); 1131 kfree(chp_dsc); 1132 } 1133 QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue); 1134 return single_queue; 1135} 1136 1137static int 1138qeth_determine_card_type(struct qeth_card *card) 1139{ 1140 int i = 0; 1141 1142 QETH_DBF_TEXT(setup, 2, "detcdtyp"); 1143 1144 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; 1145 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 1146 while (known_devices[i][4]) { 1147 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) && 1148 (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) { 1149 card->info.type = known_devices[i][4]; 1150 card->qdio.no_out_queues = known_devices[i][8]; 1151 card->info.is_multicast_different = known_devices[i][9]; 1152 if (is_1920_device(card)) { 1153 PRINT_INFO("Priority Queueing not able " 1154 "due to hardware limitations!\n"); 1155 card->qdio.no_out_queues = 1; 1156 card->qdio.default_out_queue = 0; 1157 } 1158 return 0; 1159 } 1160 i++; 1161 } 1162 card->info.type = QETH_CARD_TYPE_UNKNOWN; 1163 PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card)); 1164 return -ENOENT; 1165} 1166 1167static int 1168qeth_probe_device(struct ccwgroup_device *gdev) 1169{ 1170 struct qeth_card *card; 1171 struct device *dev; 1172 unsigned long flags; 1173 int rc; 1174 1175 QETH_DBF_TEXT(setup, 2, "probedev"); 1176 1177 dev = &gdev->dev; 1178 if (!get_device(dev)) 1179 return -ENODEV; 1180 1181 QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id); 1182 1183 card = qeth_alloc_card(); 1184 if (!card) { 1185 put_device(dev); 1186 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM); 1187 return -ENOMEM; 1188 } 1189 card->read.ccwdev = gdev->cdev[0]; 1190 card->write.ccwdev = gdev->cdev[1]; 1191 card->data.ccwdev = gdev->cdev[2]; 1192 gdev->dev.driver_data = card; 1193 card->gdev = gdev; 1194 gdev->cdev[0]->handler = qeth_irq; 1195 gdev->cdev[1]->handler = qeth_irq; 1196 gdev->cdev[2]->handler = qeth_irq; 1197 1198 if ((rc = qeth_determine_card_type(card))){ 1199 PRINT_WARN("%s: not a valid card type\n", __func__); 1200 QETH_DBF_TEXT_(setup, 2, "3err%d", rc); 1201 put_device(dev); 1202 qeth_free_card(card); 1203 return rc; 1204 } 1205 if ((rc = qeth_setup_card(card))){ 1206 QETH_DBF_TEXT_(setup, 2, "2err%d", rc); 1207 put_device(dev); 1208 qeth_free_card(card); 1209 return rc; 1210 } 1211 rc = qeth_create_device_attributes(dev); 1212 if (rc) { 1213 put_device(dev); 1214 qeth_free_card(card); 1215 return rc; 1216 } 1217 /* insert into our internal list */ 1218 write_lock_irqsave(&qeth_card_list.rwlock, flags); 1219 list_add_tail(&card->list, &qeth_card_list.list); 1220 write_unlock_irqrestore(&qeth_card_list.rwlock, flags); 1221 return rc; 1222} 1223 1224 1225static int qeth_read_conf_data(struct qeth_card *card, void **buffer, 1226 int *length) 1227{ 1228 struct ciw *ciw; 1229 char *rcd_buf; 1230 int ret; 1231 struct qeth_channel *channel = &card->data; 1232 unsigned long flags; 1233 1234 /* 1235 * scan for RCD command in extended SenseID data 1236 */ 1237 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); 1238 if (!ciw || ciw->cmd == 0) 1239 return -EOPNOTSUPP; 1240 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); 1241 if (!rcd_buf) 1242 return -ENOMEM; 1243 1244 channel->ccw.cmd_code = ciw->cmd; 1245 channel->ccw.cda = (__u32) __pa (rcd_buf); 1246 channel->ccw.count = ciw->count; 1247 channel->ccw.flags = CCW_FLAG_SLI; 1248 channel->state = CH_STATE_RCD; 1249 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); 1250 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, 1251 QETH_RCD_PARM, LPM_ANYPATH, 0, 1252 QETH_RCD_TIMEOUT); 1253 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); 1254 if (!ret) 1255 wait_event(card->wait_q, 1256 (channel->state == CH_STATE_RCD_DONE || 1257 channel->state == CH_STATE_DOWN)); 1258 if (channel->state == CH_STATE_DOWN) 1259 ret = -EIO; 1260 else 1261 channel->state = CH_STATE_DOWN; 1262 if (ret) { 1263 kfree(rcd_buf); 1264 *buffer = NULL; 1265 *length = 0; 1266 } else { 1267 *length = ciw->count; 1268 *buffer = rcd_buf; 1269 } 1270 return ret; 1271} 1272 1273static int 1274qeth_get_unitaddr(struct qeth_card *card) 1275{ 1276 int length; 1277 char *prcd; 1278 int rc; 1279 1280 QETH_DBF_TEXT(setup, 2, "getunit"); 1281 rc = qeth_read_conf_data(card, (void **) &prcd, &length); 1282 if (rc) { 1283 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n", 1284 CARD_DDEV_ID(card), rc); 1285 return rc; 1286 } 1287 card->info.chpid = prcd[30]; 1288 card->info.unit_addr2 = prcd[31]; 1289 card->info.cula = prcd[63]; 1290 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && 1291 (prcd[0x11] == _ascebc['M'])); 1292 kfree(prcd); 1293 return 0; 1294} 1295 1296static void 1297qeth_init_tokens(struct qeth_card *card) 1298{ 1299 card->token.issuer_rm_w = 0x00010103UL; 1300 card->token.cm_filter_w = 0x00010108UL; 1301 card->token.cm_connection_w = 0x0001010aUL; 1302 card->token.ulp_filter_w = 0x0001010bUL; 1303 card->token.ulp_connection_w = 0x0001010dUL; 1304} 1305 1306static inline __u16 1307raw_devno_from_bus_id(char *id) 1308{ 1309 id += (strlen(id) - 4); 1310 return (__u16) simple_strtoul(id, &id, 16); 1311} 1312/** 1313 * setup channel 1314 */ 1315static void 1316qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len) 1317{ 1318 struct qeth_card *card; 1319 1320 QETH_DBF_TEXT(trace, 4, "setupccw"); 1321 card = CARD_FROM_CDEV(channel->ccwdev); 1322 if (channel == &card->read) 1323 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); 1324 else 1325 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); 1326 channel->ccw.count = len; 1327 channel->ccw.cda = (__u32) __pa(iob); 1328} 1329 1330/** 1331 * get free buffer for ccws (IDX activation, lancmds,ipassists...) 1332 */ 1333static struct qeth_cmd_buffer * 1334__qeth_get_buffer(struct qeth_channel *channel) 1335{ 1336 __u8 index; 1337 1338 QETH_DBF_TEXT(trace, 6, "getbuff"); 1339 index = channel->io_buf_no; 1340 do { 1341 if (channel->iob[index].state == BUF_STATE_FREE) { 1342 channel->iob[index].state = BUF_STATE_LOCKED; 1343 channel->io_buf_no = (channel->io_buf_no + 1) % 1344 QETH_CMD_BUFFER_NO; 1345 memset(channel->iob[index].data, 0, QETH_BUFSIZE); 1346 return channel->iob + index; 1347 } 1348 index = (index + 1) % QETH_CMD_BUFFER_NO; 1349 } while(index != channel->io_buf_no); 1350 1351 return NULL; 1352} 1353 1354/** 1355 * release command buffer 1356 */ 1357static void 1358qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob) 1359{ 1360 unsigned long flags; 1361 1362 QETH_DBF_TEXT(trace, 6, "relbuff"); 1363 spin_lock_irqsave(&channel->iob_lock, flags); 1364 memset(iob->data, 0, QETH_BUFSIZE); 1365 iob->state = BUF_STATE_FREE; 1366 iob->callback = qeth_send_control_data_cb; 1367 iob->rc = 0; 1368 spin_unlock_irqrestore(&channel->iob_lock, flags); 1369} 1370 1371static struct qeth_cmd_buffer * 1372qeth_get_buffer(struct qeth_channel *channel) 1373{ 1374 struct qeth_cmd_buffer *buffer = NULL; 1375 unsigned long flags; 1376 1377 spin_lock_irqsave(&channel->iob_lock, flags); 1378 buffer = __qeth_get_buffer(channel); 1379 spin_unlock_irqrestore(&channel->iob_lock, flags); 1380 return buffer; 1381} 1382 1383static struct qeth_cmd_buffer * 1384qeth_wait_for_buffer(struct qeth_channel *channel) 1385{ 1386 struct qeth_cmd_buffer *buffer; 1387 wait_event(channel->wait_q, 1388 ((buffer = qeth_get_buffer(channel)) != NULL)); 1389 return buffer; 1390} 1391 1392static void 1393qeth_clear_cmd_buffers(struct qeth_channel *channel) 1394{ 1395 int cnt; 1396 1397 for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) 1398 qeth_release_buffer(channel,&channel->iob[cnt]); 1399 channel->buf_no = 0; 1400 channel->io_buf_no = 0; 1401} 1402 1403/** 1404 * start IDX for read and write channel 1405 */ 1406static int 1407qeth_idx_activate_get_answer(struct qeth_channel *channel, 1408 void (*idx_reply_cb)(struct qeth_channel *, 1409 struct qeth_cmd_buffer *)) 1410{ 1411 struct qeth_cmd_buffer *iob; 1412 unsigned long flags; 1413 int rc; 1414 struct qeth_card *card; 1415 1416 QETH_DBF_TEXT(setup, 2, "idxanswr"); 1417 card = CARD_FROM_CDEV(channel->ccwdev); 1418 iob = qeth_get_buffer(channel); 1419 iob->callback = idx_reply_cb; 1420 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); 1421 channel->ccw.count = QETH_BUFSIZE; 1422 channel->ccw.cda = (__u32) __pa(iob->data); 1423 1424 wait_event(card->wait_q, 1425 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1426 QETH_DBF_TEXT(setup, 6, "noirqpnd"); 1427 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); 1428 rc = ccw_device_start(channel->ccwdev, 1429 &channel->ccw,(addr_t) iob, 0, 0); 1430 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); 1431 1432 if (rc) { 1433 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc); 1434 QETH_DBF_TEXT_(setup, 2, "2err%d", rc); 1435 atomic_set(&channel->irq_pending, 0); 1436 wake_up(&card->wait_q); 1437 return rc; 1438 } 1439 rc = wait_event_interruptible_timeout(card->wait_q, 1440 channel->state == CH_STATE_UP, QETH_TIMEOUT); 1441 if (rc == -ERESTARTSYS) 1442 return rc; 1443 if (channel->state != CH_STATE_UP){ 1444 rc = -ETIME; 1445 QETH_DBF_TEXT_(setup, 2, "3err%d", rc); 1446 qeth_clear_cmd_buffers(channel); 1447 } else 1448 rc = 0; 1449 return rc; 1450} 1451 1452static int 1453qeth_idx_activate_channel(struct qeth_channel *channel, 1454 void (*idx_reply_cb)(struct qeth_channel *, 1455 struct qeth_cmd_buffer *)) 1456{ 1457 struct qeth_card *card; 1458 struct qeth_cmd_buffer *iob; 1459 unsigned long flags; 1460 __u16 temp; 1461 int rc; 1462 1463 card = CARD_FROM_CDEV(channel->ccwdev); 1464 1465 QETH_DBF_TEXT(setup, 2, "idxactch"); 1466 1467 iob = qeth_get_buffer(channel); 1468 iob->callback = idx_reply_cb; 1469 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); 1470 channel->ccw.count = IDX_ACTIVATE_SIZE; 1471 channel->ccw.cda = (__u32) __pa(iob->data); 1472 if (channel == &card->write) { 1473 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); 1474 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 1475 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 1476 card->seqno.trans_hdr++; 1477 } else { 1478 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); 1479 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 1480 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 1481 } 1482 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 1483 &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH); 1484 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), 1485 &card->info.func_level,sizeof(__u16)); 1486 temp = raw_devno_from_bus_id(CARD_DDEV_ID(card)); 1487 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2); 1488 temp = (card->info.cula << 8) + card->info.unit_addr2; 1489 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); 1490 1491 wait_event(card->wait_q, 1492 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1493 QETH_DBF_TEXT(setup, 6, "noirqpnd"); 1494 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); 1495 rc = ccw_device_start(channel->ccwdev, 1496 &channel->ccw,(addr_t) iob, 0, 0); 1497 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); 1498 1499 if (rc) { 1500 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc); 1501 QETH_DBF_TEXT_(setup, 2, "1err%d", rc); 1502 atomic_set(&channel->irq_pending, 0); 1503 wake_up(&card->wait_q); 1504 return rc; 1505 } 1506 rc = wait_event_interruptible_timeout(card->wait_q, 1507 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); 1508 if (rc == -ERESTARTSYS) 1509 return rc; 1510 if (channel->state != CH_STATE_ACTIVATING) { 1511 PRINT_WARN("qeth: IDX activate timed out!\n"); 1512 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME); 1513 qeth_clear_cmd_buffers(channel); 1514 return -ETIME; 1515 } 1516 return qeth_idx_activate_get_answer(channel,idx_reply_cb); 1517} 1518 1519static int 1520qeth_peer_func_level(int level) 1521{ 1522 if ((level & 0xff) == 8) 1523 return (level & 0xff) + 0x400; 1524 if (((level >> 8) & 3) == 1) 1525 return (level & 0xff) + 0x200; 1526 return level; 1527} 1528 1529static void 1530qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob) 1531{ 1532 struct qeth_card *card; 1533 __u16 temp; 1534 1535 QETH_DBF_TEXT(setup ,2, "idxwrcb"); 1536 1537 if (channel->state == CH_STATE_DOWN) { 1538 channel->state = CH_STATE_ACTIVATING; 1539 goto out; 1540 } 1541 card = CARD_FROM_CDEV(channel->ccwdev); 1542 1543 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { 1544 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative " 1545 "reply\n", CARD_WDEV_ID(card)); 1546 goto out; 1547 } 1548 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 1549 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { 1550 PRINT_WARN("IDX_ACTIVATE on write channel device %s: " 1551 "function level mismatch " 1552 "(sent: 0x%x, received: 0x%x)\n", 1553 CARD_WDEV_ID(card), card->info.func_level, temp); 1554 goto out; 1555 } 1556 channel->state = CH_STATE_UP; 1557out: 1558 qeth_release_buffer(channel, iob); 1559} 1560 1561static int 1562qeth_check_idx_response(unsigned char *buffer) 1563{ 1564 if (!buffer) 1565 return 0; 1566 1567 QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN); 1568 if ((buffer[2] & 0xc0) == 0xc0) { 1569 PRINT_WARN("received an IDX TERMINATE " 1570 "with cause code 0x%02x%s\n", 1571 buffer[4], 1572 ((buffer[4] == 0x22) ? 1573 " -- try another portname" : "")); 1574 QETH_DBF_TEXT(trace, 2, "ckidxres"); 1575 QETH_DBF_TEXT(trace, 2, " idxterm"); 1576 QETH_DBF_TEXT_(trace, 2, " rc%d", -EIO); 1577 return -EIO; 1578 } 1579 return 0; 1580} 1581 1582static void 1583qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob) 1584{ 1585 struct qeth_card *card; 1586 __u16 temp; 1587 1588 QETH_DBF_TEXT(setup , 2, "idxrdcb"); 1589 if (channel->state == CH_STATE_DOWN) { 1590 channel->state = CH_STATE_ACTIVATING; 1591 goto out; 1592 } 1593 1594 card = CARD_FROM_CDEV(channel->ccwdev); 1595 if (qeth_check_idx_response(iob->data)) { 1596 goto out; 1597 } 1598 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { 1599 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative " 1600 "reply\n", CARD_RDEV_ID(card)); 1601 goto out; 1602 } 1603 1604/** 1605 * temporary fix for microcode bug 1606 * to revert it,replace OR by AND 1607 */ 1608 if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || 1609 (card->info.type == QETH_CARD_TYPE_OSAE) ) 1610 card->info.portname_required = 1; 1611 1612 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 1613 if (temp != qeth_peer_func_level(card->info.func_level)) { 1614 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function " 1615 "level mismatch (sent: 0x%x, received: 0x%x)\n", 1616 CARD_RDEV_ID(card), card->info.func_level, temp); 1617 goto out; 1618 } 1619 memcpy(&card->token.issuer_rm_r, 1620 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 1621 QETH_MPC_TOKEN_LENGTH); 1622 memcpy(&card->info.mcl_level[0], 1623 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); 1624 channel->state = CH_STATE_UP; 1625out: 1626 qeth_release_buffer(channel,iob); 1627} 1628 1629static int 1630qeth_issue_next_read(struct qeth_card *card) 1631{ 1632 int rc; 1633 struct qeth_cmd_buffer *iob; 1634 1635 QETH_DBF_TEXT(trace,5,"issnxrd"); 1636 if (card->read.state != CH_STATE_UP) 1637 return -EIO; 1638 iob = qeth_get_buffer(&card->read); 1639 if (!iob) { 1640 PRINT_WARN("issue_next_read failed: no iob available!\n"); 1641 return -ENOMEM; 1642 } 1643 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); 1644 QETH_DBF_TEXT(trace, 6, "noirqpnd"); 1645 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, 1646 (addr_t) iob, 0, 0); 1647 if (rc) { 1648 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc); 1649 atomic_set(&card->read.irq_pending, 0); 1650 qeth_schedule_recovery(card); 1651 wake_up(&card->wait_q); 1652 } 1653 return rc; 1654} 1655 1656static struct qeth_reply * 1657qeth_alloc_reply(struct qeth_card *card) 1658{ 1659 struct qeth_reply *reply; 1660 1661 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); 1662 if (reply){ 1663 atomic_set(&reply->refcnt, 1); 1664 atomic_set(&reply->received, 0); 1665 reply->card = card; 1666 }; 1667 return reply; 1668} 1669 1670static void 1671qeth_get_reply(struct qeth_reply *reply) 1672{ 1673 WARN_ON(atomic_read(&reply->refcnt) <= 0); 1674 atomic_inc(&reply->refcnt); 1675} 1676 1677static void 1678qeth_put_reply(struct qeth_reply *reply) 1679{ 1680 WARN_ON(atomic_read(&reply->refcnt) <= 0); 1681 if (atomic_dec_and_test(&reply->refcnt)) 1682 kfree(reply); 1683} 1684 1685static void 1686qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card) 1687{ 1688 int rc; 1689 int com; 1690 char * ipa_name; 1691 1692 com = cmd->hdr.command; 1693 rc = cmd->hdr.return_code; 1694 ipa_name = qeth_get_ipa_cmd_name(com); 1695 1696 PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com, 1697 QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc)); 1698} 1699 1700static struct qeth_ipa_cmd * 1701qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob) 1702{ 1703 struct qeth_ipa_cmd *cmd = NULL; 1704 1705 QETH_DBF_TEXT(trace,5,"chkipad"); 1706 if (IS_IPA(iob->data)){ 1707 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); 1708 if (IS_IPA_REPLY(cmd)) { 1709 if (cmd->hdr.return_code) 1710 qeth_issue_ipa_msg(cmd, card); 1711 return cmd; 1712 } 1713 else { 1714 switch (cmd->hdr.command) { 1715 case IPA_CMD_STOPLAN: 1716 PRINT_WARN("Link failure on %s (CHPID 0x%X) - " 1717 "there is a network problem or " 1718 "someone pulled the cable or " 1719 "disabled the port.\n", 1720 QETH_CARD_IFNAME(card), 1721 card->info.chpid); 1722 card->lan_online = 0; 1723 if (card->dev && netif_carrier_ok(card->dev)) 1724 netif_carrier_off(card->dev); 1725 return NULL; 1726 case IPA_CMD_STARTLAN: 1727 PRINT_INFO("Link reestablished on %s " 1728 "(CHPID 0x%X). Scheduling " 1729 "IP address reset.\n", 1730 QETH_CARD_IFNAME(card), 1731 card->info.chpid); 1732 netif_carrier_on(card->dev); 1733 qeth_schedule_recovery(card); 1734 return NULL; 1735 case IPA_CMD_MODCCID: 1736 return cmd; 1737 case IPA_CMD_REGISTER_LOCAL_ADDR: 1738 QETH_DBF_TEXT(trace,3, "irla"); 1739 break; 1740 case IPA_CMD_UNREGISTER_LOCAL_ADDR: 1741 QETH_DBF_TEXT(trace,3, "urla"); 1742 break; 1743 default: 1744 PRINT_WARN("Received data is IPA " 1745 "but not a reply!\n"); 1746 break; 1747 } 1748 } 1749 } 1750 return cmd; 1751} 1752 1753/** 1754 * wake all waiting ipa commands 1755 */ 1756static void 1757qeth_clear_ipacmd_list(struct qeth_card *card) 1758{ 1759 struct qeth_reply *reply, *r; 1760 unsigned long flags; 1761 1762 QETH_DBF_TEXT(trace, 4, "clipalst"); 1763 1764 spin_lock_irqsave(&card->lock, flags); 1765 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { 1766 qeth_get_reply(reply); 1767 reply->rc = -EIO; 1768 atomic_inc(&reply->received); 1769 list_del_init(&reply->list); 1770 wake_up(&reply->wait_q); 1771 qeth_put_reply(reply); 1772 } 1773 spin_unlock_irqrestore(&card->lock, flags); 1774} 1775 1776static void 1777qeth_send_control_data_cb(struct qeth_channel *channel, 1778 struct qeth_cmd_buffer *iob) 1779{ 1780 struct qeth_card *card; 1781 struct qeth_reply *reply, *r; 1782 struct qeth_ipa_cmd *cmd; 1783 unsigned long flags; 1784 int keep_reply; 1785 1786 QETH_DBF_TEXT(trace,4,"sndctlcb"); 1787 1788 card = CARD_FROM_CDEV(channel->ccwdev); 1789 if (qeth_check_idx_response(iob->data)) { 1790 qeth_clear_ipacmd_list(card); 1791 qeth_schedule_recovery(card); 1792 goto out; 1793 } 1794 1795 cmd = qeth_check_ipa_data(card, iob); 1796 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) 1797 goto out; 1798 /*in case of OSN : check if cmd is set */ 1799 if (card->info.type == QETH_CARD_TYPE_OSN && 1800 cmd && 1801 cmd->hdr.command != IPA_CMD_STARTLAN && 1802 card->osn_info.assist_cb != NULL) { 1803 card->osn_info.assist_cb(card->dev, cmd); 1804 goto out; 1805 } 1806 1807 spin_lock_irqsave(&card->lock, flags); 1808 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { 1809 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || 1810 ((cmd) && (reply->seqno == cmd->hdr.seqno))) { 1811 qeth_get_reply(reply); 1812 list_del_init(&reply->list); 1813 spin_unlock_irqrestore(&card->lock, flags); 1814 keep_reply = 0; 1815 if (reply->callback != NULL) { 1816 if (cmd) { 1817 reply->offset = (__u16)((char*)cmd - 1818 (char *)iob->data); 1819 keep_reply = reply->callback(card, 1820 reply, 1821 (unsigned long)cmd); 1822 } else 1823 keep_reply = reply->callback(card, 1824 reply, 1825 (unsigned long)iob); 1826 } 1827 if (cmd) 1828 reply->rc = (u16) cmd->hdr.return_code; 1829 else if (iob->rc) 1830 reply->rc = iob->rc; 1831 if (keep_reply) { 1832 spin_lock_irqsave(&card->lock, flags); 1833 list_add_tail(&reply->list, 1834 &card->cmd_waiter_list); 1835 spin_unlock_irqrestore(&card->lock, flags); 1836 } else { 1837 atomic_inc(&reply->received); 1838 wake_up(&reply->wait_q); 1839 } 1840 qeth_put_reply(reply); 1841 goto out; 1842 } 1843 } 1844 spin_unlock_irqrestore(&card->lock, flags); 1845out: 1846 memcpy(&card->seqno.pdu_hdr_ack, 1847 QETH_PDU_HEADER_SEQ_NO(iob->data), 1848 QETH_SEQ_NO_LENGTH); 1849 qeth_release_buffer(channel,iob); 1850} 1851 1852static void 1853qeth_prepare_control_data(struct qeth_card *card, int len, 1854 struct qeth_cmd_buffer *iob) 1855{ 1856 qeth_setup_ccw(&card->write,iob->data,len); 1857 iob->callback = qeth_release_buffer; 1858 1859 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 1860 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 1861 card->seqno.trans_hdr++; 1862 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), 1863 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); 1864 card->seqno.pdu_hdr++; 1865 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), 1866 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); 1867 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN); 1868} 1869 1870static int 1871qeth_send_control_data(struct qeth_card *card, int len, 1872 struct qeth_cmd_buffer *iob, 1873 int (*reply_cb) 1874 (struct qeth_card *, struct qeth_reply*, unsigned long), 1875 void *reply_param) 1876 1877{ 1878 int rc; 1879 unsigned long flags; 1880 struct qeth_reply *reply = NULL; 1881 unsigned long timeout; 1882 1883 QETH_DBF_TEXT(trace, 2, "sendctl"); 1884 1885 reply = qeth_alloc_reply(card); 1886 if (!reply) { 1887 PRINT_WARN("Could no alloc qeth_reply!\n"); 1888 return -ENOMEM; 1889 } 1890 reply->callback = reply_cb; 1891 reply->param = reply_param; 1892 if (card->state == CARD_STATE_DOWN) 1893 reply->seqno = QETH_IDX_COMMAND_SEQNO; 1894 else 1895 reply->seqno = card->seqno.ipa++; 1896 init_waitqueue_head(&reply->wait_q); 1897 spin_lock_irqsave(&card->lock, flags); 1898 list_add_tail(&reply->list, &card->cmd_waiter_list); 1899 spin_unlock_irqrestore(&card->lock, flags); 1900 QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN); 1901 1902 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ; 1903 qeth_prepare_control_data(card, len, iob); 1904 1905 if (IS_IPA(iob->data)) 1906 timeout = jiffies + QETH_IPA_TIMEOUT; 1907 else 1908 timeout = jiffies + QETH_TIMEOUT; 1909 1910 QETH_DBF_TEXT(trace, 6, "noirqpnd"); 1911 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); 1912 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, 1913 (addr_t) iob, 0, 0); 1914 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); 1915 if (rc){ 1916 PRINT_WARN("qeth_send_control_data: " 1917 "ccw_device_start rc = %i\n", rc); 1918 QETH_DBF_TEXT_(trace, 2, " err%d", rc); 1919 spin_lock_irqsave(&card->lock, flags); 1920 list_del_init(&reply->list); 1921 qeth_put_reply(reply); 1922 spin_unlock_irqrestore(&card->lock, flags); 1923 qeth_release_buffer(iob->channel, iob); 1924 atomic_set(&card->write.irq_pending, 0); 1925 wake_up(&card->wait_q); 1926 return rc; 1927 } 1928 while (!atomic_read(&reply->received)) { 1929 if (time_after(jiffies, timeout)) { 1930 spin_lock_irqsave(&reply->card->lock, flags); 1931 list_del_init(&reply->list); 1932 spin_unlock_irqrestore(&reply->card->lock, flags); 1933 reply->rc = -ETIME; 1934 atomic_inc(&reply->received); 1935 wake_up(&reply->wait_q); 1936 } 1937 }; 1938 rc = reply->rc; 1939 qeth_put_reply(reply); 1940 return rc; 1941} 1942 1943static int 1944qeth_osn_send_control_data(struct qeth_card *card, int len, 1945 struct qeth_cmd_buffer *iob) 1946{ 1947 unsigned long flags; 1948 int rc = 0; 1949 1950 QETH_DBF_TEXT(trace, 5, "osndctrd"); 1951 1952 wait_event(card->wait_q, 1953 atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0); 1954 qeth_prepare_control_data(card, len, iob); 1955 QETH_DBF_TEXT(trace, 6, "osnoirqp"); 1956 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); 1957 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, 1958 (addr_t) iob, 0, 0); 1959 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); 1960 if (rc){ 1961 PRINT_WARN("qeth_osn_send_control_data: " 1962 "ccw_device_start rc = %i\n", rc); 1963 QETH_DBF_TEXT_(trace, 2, " err%d", rc); 1964 qeth_release_buffer(iob->channel, iob); 1965 atomic_set(&card->write.irq_pending, 0); 1966 wake_up(&card->wait_q); 1967 } 1968 return rc; 1969} 1970 1971static inline void 1972qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 1973 char prot_type) 1974{ 1975 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); 1976 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1); 1977 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), 1978 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 1979} 1980 1981static int 1982qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 1983 int data_len) 1984{ 1985 u16 s1, s2; 1986 1987 QETH_DBF_TEXT(trace,4,"osndipa"); 1988 1989 qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2); 1990 s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len); 1991 s2 = (u16)data_len; 1992 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 1993 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 1994 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 1995 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 1996 return qeth_osn_send_control_data(card, s1, iob); 1997} 1998 1999static int 2000qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 2001 int (*reply_cb) 2002 (struct qeth_card *,struct qeth_reply*, unsigned long), 2003 void *reply_param) 2004{ 2005 int rc; 2006 char prot_type; 2007 2008 QETH_DBF_TEXT(trace,4,"sendipa"); 2009 2010 if (card->options.layer2) 2011 if (card->info.type == QETH_CARD_TYPE_OSN) 2012 prot_type = QETH_PROT_OSN2; 2013 else 2014 prot_type = QETH_PROT_LAYER2; 2015 else 2016 prot_type = QETH_PROT_TCPIP; 2017 qeth_prepare_ipa_cmd(card,iob,prot_type); 2018 rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob, 2019 reply_cb, reply_param); 2020 return rc; 2021} 2022 2023 2024static int 2025qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 2026 unsigned long data) 2027{ 2028 struct qeth_cmd_buffer *iob; 2029 2030 QETH_DBF_TEXT(setup, 2, "cmenblcb"); 2031 2032 iob = (struct qeth_cmd_buffer *) data; 2033 memcpy(&card->token.cm_filter_r, 2034 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), 2035 QETH_MPC_TOKEN_LENGTH); 2036 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); 2037 return 0; 2038} 2039 2040static int 2041qeth_cm_enable(struct qeth_card *card) 2042{ 2043 int rc; 2044 struct qeth_cmd_buffer *iob; 2045 2046 QETH_DBF_TEXT(setup,2,"cmenable"); 2047 2048 iob = qeth_wait_for_buffer(&card->write); 2049 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); 2050 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), 2051 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 2052 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), 2053 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); 2054 2055 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, 2056 qeth_cm_enable_cb, NULL); 2057 return rc; 2058} 2059 2060static int 2061qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 2062 unsigned long data) 2063{ 2064 2065 struct qeth_cmd_buffer *iob; 2066 2067 QETH_DBF_TEXT(setup, 2, "cmsetpcb"); 2068 2069 iob = (struct qeth_cmd_buffer *) data; 2070 memcpy(&card->token.cm_connection_r, 2071 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), 2072 QETH_MPC_TOKEN_LENGTH); 2073 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); 2074 return 0; 2075} 2076 2077static int 2078qeth_cm_setup(struct qeth_card *card) 2079{ 2080 int rc; 2081 struct qeth_cmd_buffer *iob; 2082 2083 QETH_DBF_TEXT(setup,2,"cmsetup"); 2084 2085 iob = qeth_wait_for_buffer(&card->write); 2086 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); 2087 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), 2088 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 2089 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), 2090 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); 2091 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), 2092 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); 2093 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, 2094 qeth_cm_setup_cb, NULL); 2095 return rc; 2096 2097} 2098 2099static int 2100qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 2101 unsigned long data) 2102{ 2103 2104 __u16 mtu, framesize; 2105 __u16 len; 2106 __u8 link_type; 2107 struct qeth_cmd_buffer *iob; 2108 2109 QETH_DBF_TEXT(setup, 2, "ulpenacb"); 2110 2111 iob = (struct qeth_cmd_buffer *) data; 2112 memcpy(&card->token.ulp_filter_r, 2113 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), 2114 QETH_MPC_TOKEN_LENGTH); 2115 if (qeth_get_mtu_out_of_mpc(card->info.type)) { 2116 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); 2117 mtu = qeth_get_mtu_outof_framesize(framesize); 2118 if (!mtu) { 2119 iob->rc = -EINVAL; 2120 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); 2121 return 0; 2122 } 2123 card->info.max_mtu = mtu; 2124 card->info.initial_mtu = mtu; 2125 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; 2126 } else { 2127 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card); 2128 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type); 2129 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; 2130 } 2131 2132 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); 2133 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { 2134 memcpy(&link_type, 2135 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); 2136 card->info.link_type = link_type; 2137 } else 2138 card->info.link_type = 0; 2139 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); 2140 return 0; 2141} 2142 2143static int 2144qeth_ulp_enable(struct qeth_card *card) 2145{ 2146 int rc; 2147 char prot_type; 2148 struct qeth_cmd_buffer *iob; 2149 2150 QETH_DBF_TEXT(setup,2,"ulpenabl"); 2151 2152 iob = qeth_wait_for_buffer(&card->write); 2153 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); 2154 2155 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = 2156 (__u8) card->info.portno; 2157 if (card->options.layer2) 2158 if (card->info.type == QETH_CARD_TYPE_OSN) 2159 prot_type = QETH_PROT_OSN2; 2160 else 2161 prot_type = QETH_PROT_LAYER2; 2162 else 2163 prot_type = QETH_PROT_TCPIP; 2164 2165 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1); 2166 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), 2167 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 2168 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), 2169 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); 2170 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data), 2171 card->info.portname, 9); 2172 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, 2173 qeth_ulp_enable_cb, NULL); 2174 return rc; 2175 2176} 2177 2178static int 2179qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 2180 unsigned long data) 2181{ 2182 struct qeth_cmd_buffer *iob; 2183 2184 QETH_DBF_TEXT(setup, 2, "ulpstpcb"); 2185 2186 iob = (struct qeth_cmd_buffer *) data; 2187 memcpy(&card->token.ulp_connection_r, 2188 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 2189 QETH_MPC_TOKEN_LENGTH); 2190 QETH_DBF_TEXT_(setup, 2, " rc%d", iob->rc); 2191 return 0; 2192} 2193 2194static int 2195qeth_ulp_setup(struct qeth_card *card) 2196{ 2197 int rc; 2198 __u16 temp; 2199 struct qeth_cmd_buffer *iob; 2200 struct ccw_dev_id dev_id; 2201 2202 QETH_DBF_TEXT(setup,2,"ulpsetup"); 2203 2204 iob = qeth_wait_for_buffer(&card->write); 2205 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); 2206 2207 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), 2208 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 2209 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), 2210 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); 2211 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), 2212 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); 2213 2214 ccw_device_get_id(CARD_DDEV(card), &dev_id); 2215 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); 2216 temp = (card->info.cula << 8) + card->info.unit_addr2; 2217 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); 2218 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, 2219 qeth_ulp_setup_cb, NULL); 2220 return rc; 2221} 2222 2223static inline int 2224qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error, 2225 unsigned int siga_error, const char *dbftext) 2226{ 2227 if (qdio_error || siga_error) { 2228 QETH_DBF_TEXT(trace, 2, dbftext); 2229 QETH_DBF_TEXT(qerr, 2, dbftext); 2230 QETH_DBF_TEXT_(qerr, 2, " F15=%02X", 2231 buf->element[15].flags & 0xff); 2232 QETH_DBF_TEXT_(qerr, 2, " F14=%02X", 2233 buf->element[14].flags & 0xff); 2234 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error); 2235 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error); 2236 return 1; 2237 } 2238 return 0; 2239} 2240 2241static struct sk_buff * 2242qeth_get_skb(unsigned int length, struct qeth_hdr *hdr) 2243{ 2244 struct sk_buff* skb; 2245 int add_len; 2246 2247 add_len = 0; 2248 if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN) 2249 add_len = sizeof(struct qeth_hdr); 2250#ifdef CONFIG_QETH_VLAN 2251 else 2252 add_len = VLAN_HLEN; 2253#endif 2254 skb = dev_alloc_skb(length + add_len); 2255 if (skb && add_len) 2256 skb_reserve(skb, add_len); 2257 return skb; 2258} 2259 2260static struct sk_buff * 2261qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer, 2262 struct qdio_buffer_element **__element, int *__offset, 2263 struct qeth_hdr **hdr) 2264{ 2265 struct qdio_buffer_element *element = *__element; 2266 int offset = *__offset; 2267 struct sk_buff *skb = NULL; 2268 int skb_len; 2269 void *data_ptr; 2270 int data_len; 2271 2272 QETH_DBF_TEXT(trace,6,"nextskb"); 2273 /* qeth_hdr must not cross element boundaries */ 2274 if (element->length < offset + sizeof(struct qeth_hdr)){ 2275 if (qeth_is_last_sbale(element)) 2276 return NULL; 2277 element++; 2278 offset = 0; 2279 if (element->length < sizeof(struct qeth_hdr)) 2280 return NULL; 2281 } 2282 *hdr = element->addr + offset; 2283 2284 offset += sizeof(struct qeth_hdr); 2285 if (card->options.layer2) 2286 if (card->info.type == QETH_CARD_TYPE_OSN) 2287 skb_len = (*hdr)->hdr.osn.pdu_length; 2288 else 2289 skb_len = (*hdr)->hdr.l2.pkt_length; 2290 else 2291 skb_len = (*hdr)->hdr.l3.length; 2292 2293 if (!skb_len) 2294 return NULL; 2295 if (card->options.fake_ll){ 2296 if(card->dev->type == ARPHRD_IEEE802_TR){ 2297 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr))) 2298 goto no_mem; 2299 skb_reserve(skb,QETH_FAKE_LL_LEN_TR); 2300 } else { 2301 if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr))) 2302 goto no_mem; 2303 skb_reserve(skb,QETH_FAKE_LL_LEN_ETH); 2304 } 2305 } else if (!(skb = qeth_get_skb(skb_len, *hdr))) 2306 goto no_mem; 2307 data_ptr = element->addr + offset; 2308 while (skb_len) { 2309 data_len = min(skb_len, (int)(element->length - offset)); 2310 if (data_len) 2311 memcpy(skb_put(skb, data_len), data_ptr, data_len); 2312 skb_len -= data_len; 2313 if (skb_len){ 2314 if (qeth_is_last_sbale(element)){ 2315 QETH_DBF_TEXT(trace,4,"unexeob"); 2316 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card)); 2317 QETH_DBF_TEXT(qerr,2,"unexeob"); 2318 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card)); 2319 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer)); 2320 dev_kfree_skb_any(skb); 2321 card->stats.rx_errors++; 2322 return NULL; 2323 } 2324 element++; 2325 offset = 0; 2326 data_ptr = element->addr; 2327 } else { 2328 offset += data_len; 2329 } 2330 } 2331 *__element = element; 2332 *__offset = offset; 2333 return skb; 2334no_mem: 2335 if (net_ratelimit()){ 2336 PRINT_WARN("No memory for packet received on %s.\n", 2337 QETH_CARD_IFNAME(card)); 2338 QETH_DBF_TEXT(trace,2,"noskbmem"); 2339 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card)); 2340 } 2341 card->stats.rx_dropped++; 2342 return NULL; 2343} 2344 2345static __be16 2346qeth_type_trans(struct sk_buff *skb, struct net_device *dev) 2347{ 2348 struct qeth_card *card; 2349 struct ethhdr *eth; 2350 2351 QETH_DBF_TEXT(trace,6,"typtrans"); 2352 2353 card = (struct qeth_card *)dev->priv; 2354#ifdef CONFIG_TR 2355 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) || 2356 (card->info.link_type == QETH_LINK_TYPE_LANE_TR)) 2357 return tr_type_trans(skb,dev); 2358#endif /* CONFIG_TR */ 2359 skb_reset_mac_header(skb); 2360 skb_pull(skb, ETH_HLEN ); 2361 eth = eth_hdr(skb); 2362 2363 if (*eth->h_dest & 1) { 2364 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0) 2365 skb->pkt_type = PACKET_BROADCAST; 2366 else 2367 skb->pkt_type = PACKET_MULTICAST; 2368 } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN)) 2369 skb->pkt_type = PACKET_OTHERHOST; 2370 2371 if (ntohs(eth->h_proto) >= 1536) 2372 return eth->h_proto; 2373 if (*(unsigned short *) (skb->data) == 0xFFFF) 2374 return htons(ETH_P_802_3); 2375 return htons(ETH_P_802_2); 2376} 2377 2378static void 2379qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb, 2380 struct qeth_hdr *hdr) 2381{ 2382 struct trh_hdr *fake_hdr; 2383 struct trllc *fake_llc; 2384 struct iphdr *ip_hdr; 2385 2386 QETH_DBF_TEXT(trace,5,"skbfktr"); 2387 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR); 2388 /* this is a fake ethernet header */ 2389 fake_hdr = tr_hdr(skb); 2390 2391 /* the destination MAC address */ 2392 switch (skb->pkt_type){ 2393 case PACKET_MULTICAST: 2394 switch (skb->protocol){ 2395#ifdef CONFIG_QETH_IPV6 2396 case __constant_htons(ETH_P_IPV6): 2397 ndisc_mc_map((struct in6_addr *) 2398 skb->data + QETH_FAKE_LL_V6_ADDR_POS, 2399 fake_hdr->daddr, card->dev, 0); 2400 break; 2401#endif /* CONFIG_QETH_IPV6 */ 2402 case __constant_htons(ETH_P_IP): 2403 ip_hdr = (struct iphdr *)skb->data; 2404 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr); 2405 break; 2406 default: 2407 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN); 2408 } 2409 break; 2410 case PACKET_BROADCAST: 2411 memset(fake_hdr->daddr, 0xff, TR_ALEN); 2412 break; 2413 default: 2414 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN); 2415 } 2416 /* the source MAC address */ 2417 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR) 2418 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN); 2419 else 2420 memset(fake_hdr->saddr, 0, TR_ALEN); 2421 fake_hdr->rcf=0; 2422 fake_llc = (struct trllc*)&(fake_hdr->rcf); 2423 fake_llc->dsap = EXTENDED_SAP; 2424 fake_llc->ssap = EXTENDED_SAP; 2425 fake_llc->llc = UI_CMD; 2426 fake_llc->protid[0] = 0; 2427 fake_llc->protid[1] = 0; 2428 fake_llc->protid[2] = 0; 2429 fake_llc->ethertype = ETH_P_IP; 2430} 2431 2432static void 2433qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb, 2434 struct qeth_hdr *hdr) 2435{ 2436 struct ethhdr *fake_hdr; 2437 struct iphdr *ip_hdr; 2438 2439 QETH_DBF_TEXT(trace,5,"skbfketh"); 2440 skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH); 2441 /* this is a fake ethernet header */ 2442 fake_hdr = eth_hdr(skb); 2443 2444 /* the destination MAC address */ 2445 switch (skb->pkt_type){ 2446 case PACKET_MULTICAST: 2447 switch (skb->protocol){ 2448#ifdef CONFIG_QETH_IPV6 2449 case __constant_htons(ETH_P_IPV6): 2450 ndisc_mc_map((struct in6_addr *) 2451 skb->data + QETH_FAKE_LL_V6_ADDR_POS, 2452 fake_hdr->h_dest, card->dev, 0); 2453 break; 2454#endif /* CONFIG_QETH_IPV6 */ 2455 case __constant_htons(ETH_P_IP): 2456 ip_hdr = (struct iphdr *)skb->data; 2457 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest); 2458 break; 2459 default: 2460 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN); 2461 } 2462 break; 2463 case PACKET_BROADCAST: 2464 memset(fake_hdr->h_dest, 0xff, ETH_ALEN); 2465 break; 2466 default: 2467 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN); 2468 } 2469 /* the source MAC address */ 2470 if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR) 2471 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN); 2472 else 2473 memset(fake_hdr->h_source, 0, ETH_ALEN); 2474 /* the protocol */ 2475 fake_hdr->h_proto = skb->protocol; 2476} 2477 2478static inline void 2479qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb, 2480 struct qeth_hdr *hdr) 2481{ 2482 if (card->dev->type == ARPHRD_IEEE802_TR) 2483 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr); 2484 else 2485 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr); 2486} 2487 2488static inline void 2489qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, 2490 struct qeth_hdr *hdr) 2491{ 2492 skb->pkt_type = PACKET_HOST; 2493 skb->protocol = qeth_type_trans(skb, skb->dev); 2494 if (card->options.checksum_type == NO_CHECKSUMMING) 2495 skb->ip_summed = CHECKSUM_UNNECESSARY; 2496 else 2497 skb->ip_summed = CHECKSUM_NONE; 2498 *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno; 2499} 2500 2501static __u16 2502qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, 2503 struct qeth_hdr *hdr) 2504{ 2505 unsigned short vlan_id = 0; 2506#ifdef CONFIG_QETH_IPV6 2507 if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) { 2508 skb->pkt_type = PACKET_HOST; 2509 skb->protocol = qeth_type_trans(skb, card->dev); 2510 return 0; 2511 } 2512#endif /* CONFIG_QETH_IPV6 */ 2513 skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 : 2514 ETH_P_IP); 2515 switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){ 2516 case QETH_CAST_UNICAST: 2517 skb->pkt_type = PACKET_HOST; 2518 break; 2519 case QETH_CAST_MULTICAST: 2520 skb->pkt_type = PACKET_MULTICAST; 2521 card->stats.multicast++; 2522 break; 2523 case QETH_CAST_BROADCAST: 2524 skb->pkt_type = PACKET_BROADCAST; 2525 card->stats.multicast++; 2526 break; 2527 case QETH_CAST_ANYCAST: 2528 case QETH_CAST_NOCAST: 2529 default: 2530 skb->pkt_type = PACKET_HOST; 2531 } 2532 2533 if (hdr->hdr.l3.ext_flags & 2534 (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) { 2535 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)? 2536 hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]); 2537 } 2538 2539 if (card->options.fake_ll) 2540 qeth_rebuild_skb_fake_ll(card, skb, hdr); 2541 else 2542 skb_reset_mac_header(skb); 2543 skb->ip_summed = card->options.checksum_type; 2544 if (card->options.checksum_type == HW_CHECKSUMMING){ 2545 if ( (hdr->hdr.l3.ext_flags & 2546 (QETH_HDR_EXT_CSUM_HDR_REQ | 2547 QETH_HDR_EXT_CSUM_TRANSP_REQ)) == 2548 (QETH_HDR_EXT_CSUM_HDR_REQ | 2549 QETH_HDR_EXT_CSUM_TRANSP_REQ) ) 2550 skb->ip_summed = CHECKSUM_UNNECESSARY; 2551 else 2552 skb->ip_summed = SW_CHECKSUMMING; 2553 } 2554 return vlan_id; 2555} 2556 2557static void 2558qeth_process_inbound_buffer(struct qeth_card *card, 2559 struct qeth_qdio_buffer *buf, int index) 2560{ 2561 struct qdio_buffer_element *element; 2562 struct sk_buff *skb; 2563 struct qeth_hdr *hdr; 2564 int offset; 2565 int rxrc; 2566 __u16 vlan_tag = 0; 2567 2568 /* get first element of current buffer */ 2569 element = (struct qdio_buffer_element *)&buf->buffer->element[0]; 2570 offset = 0; 2571 if (card->options.performance_stats) 2572 card->perf_stats.bufs_rec++; 2573 while((skb = qeth_get_next_skb(card, buf->buffer, &element, 2574 &offset, &hdr))) { 2575 skb->dev = card->dev; 2576 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) 2577 qeth_layer2_rebuild_skb(card, skb, hdr); 2578 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3) 2579 vlan_tag = qeth_rebuild_skb(card, skb, hdr); 2580 else { /*in case of OSN*/ 2581 skb_push(skb, sizeof(struct qeth_hdr)); 2582 skb_copy_to_linear_data(skb, hdr, 2583 sizeof(struct qeth_hdr)); 2584 } 2585 /* is device UP ? */ 2586 if (!(card->dev->flags & IFF_UP)){ 2587 dev_kfree_skb_any(skb); 2588 continue; 2589 } 2590 if (card->info.type == QETH_CARD_TYPE_OSN) 2591 rxrc = card->osn_info.data_cb(skb); 2592 else 2593#ifdef CONFIG_QETH_VLAN 2594 if (vlan_tag) 2595 if (card->vlangrp) 2596 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag); 2597 else { 2598 dev_kfree_skb_any(skb); 2599 continue; 2600 } 2601 else 2602#endif 2603 rxrc = netif_rx(skb); 2604 card->dev->last_rx = jiffies; 2605 card->stats.rx_packets++; 2606 card->stats.rx_bytes += skb->len; 2607 } 2608} 2609 2610static struct qeth_buffer_pool_entry * 2611qeth_get_buffer_pool_entry(struct qeth_card *card) 2612{ 2613 struct qeth_buffer_pool_entry *entry; 2614 2615 QETH_DBF_TEXT(trace, 6, "gtbfplen"); 2616 if (!list_empty(&card->qdio.in_buf_pool.entry_list)) { 2617 entry = list_entry(card->qdio.in_buf_pool.entry_list.next, 2618 struct qeth_buffer_pool_entry, list); 2619 list_del_init(&entry->list); 2620 return entry; 2621 } 2622 return NULL; 2623} 2624 2625static void 2626qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf) 2627{ 2628 struct qeth_buffer_pool_entry *pool_entry; 2629 int i; 2630 2631 pool_entry = qeth_get_buffer_pool_entry(card); 2632 /* 2633 * since the buffer is accessed only from the input_tasklet 2634 * there shouldn't be a need to synchronize; also, since we use 2635 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off 2636 * buffers 2637 */ 2638 BUG_ON(!pool_entry); 2639 2640 buf->pool_entry = pool_entry; 2641 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){ 2642 buf->buffer->element[i].length = PAGE_SIZE; 2643 buf->buffer->element[i].addr = pool_entry->elements[i]; 2644 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) 2645 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY; 2646 else 2647 buf->buffer->element[i].flags = 0; 2648 } 2649 buf->state = QETH_QDIO_BUF_EMPTY; 2650} 2651 2652static void 2653qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, 2654 struct qeth_qdio_out_buffer *buf) 2655{ 2656 int i; 2657 struct sk_buff *skb; 2658 2659 /* is PCI flag set on buffer? */ 2660 if (buf->buffer->element[0].flags & 0x40) 2661 atomic_dec(&queue->set_pci_flags_count); 2662 2663 while ((skb = skb_dequeue(&buf->skb_list))){ 2664 atomic_dec(&skb->users); 2665 dev_kfree_skb_any(skb); 2666 } 2667 qeth_eddp_buf_release_contexts(buf); 2668 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){ 2669 buf->buffer->element[i].length = 0; 2670 buf->buffer->element[i].addr = NULL; 2671 buf->buffer->element[i].flags = 0; 2672 } 2673 buf->next_element_to_fill = 0; 2674 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); 2675} 2676 2677static void 2678qeth_queue_input_buffer(struct qeth_card *card, int index) 2679{ 2680 struct qeth_qdio_q *queue = card->qdio.in_q; 2681 int count; 2682 int i; 2683 int rc; 2684 2685 QETH_DBF_TEXT(trace,6,"queinbuf"); 2686 count = (index < queue->next_buf_to_init)? 2687 card->qdio.in_buf_pool.buf_count - 2688 (queue->next_buf_to_init - index) : 2689 card->qdio.in_buf_pool.buf_count - 2690 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); 2691 /* only requeue at a certain threshold to avoid SIGAs */ 2692 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){ 2693 for (i = queue->next_buf_to_init; 2694 i < queue->next_buf_to_init + count; ++i) 2695 qeth_init_input_buffer(card, 2696 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]); 2697 /* 2698 * according to old code it should be avoided to requeue all 2699 * 128 buffers in order to benefit from PCI avoidance. 2700 * this function keeps at least one buffer (the buffer at 2701 * 'index') un-requeued -> this buffer is the first buffer that 2702 * will be requeued the next time 2703 */ 2704 if (card->options.performance_stats) { 2705 card->perf_stats.inbound_do_qdio_cnt++; 2706 card->perf_stats.inbound_do_qdio_start_time = 2707 qeth_get_micros(); 2708 } 2709 rc = do_QDIO(CARD_DDEV(card), 2710 QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT, 2711 0, queue->next_buf_to_init, count, NULL); 2712 if (card->options.performance_stats) 2713 card->perf_stats.inbound_do_qdio_time += 2714 qeth_get_micros() - 2715 card->perf_stats.inbound_do_qdio_start_time; 2716 if (rc){ 2717 PRINT_WARN("qeth_queue_input_buffer's do_QDIO " 2718 "return %i (device %s).\n", 2719 rc, CARD_DDEV_ID(card)); 2720 QETH_DBF_TEXT(trace,2,"qinberr"); 2721 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card)); 2722 } 2723 queue->next_buf_to_init = (queue->next_buf_to_init + count) % 2724 QDIO_MAX_BUFFERS_PER_Q; 2725 } 2726} 2727 2728static inline void 2729qeth_put_buffer_pool_entry(struct qeth_card *card, 2730 struct qeth_buffer_pool_entry *entry) 2731{ 2732 QETH_DBF_TEXT(trace, 6, "ptbfplen"); 2733 list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list); 2734} 2735 2736static void 2737qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status, 2738 unsigned int qdio_err, unsigned int siga_err, 2739 unsigned int queue, int first_element, int count, 2740 unsigned long card_ptr) 2741{ 2742 struct net_device *net_dev; 2743 struct qeth_card *card; 2744 struct qeth_qdio_buffer *buffer; 2745 int index; 2746 int i; 2747 2748 QETH_DBF_TEXT(trace, 6, "qdinput"); 2749 card = (struct qeth_card *) card_ptr; 2750 net_dev = card->dev; 2751 if (card->options.performance_stats) { 2752 card->perf_stats.inbound_cnt++; 2753 card->perf_stats.inbound_start_time = qeth_get_micros(); 2754 } 2755 if (status & QDIO_STATUS_LOOK_FOR_ERROR) { 2756 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){ 2757 QETH_DBF_TEXT(trace, 1,"qdinchk"); 2758 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); 2759 QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count); 2760 QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status); 2761 qeth_schedule_recovery(card); 2762 return; 2763 } 2764 } 2765 for (i = first_element; i < (first_element + count); ++i) { 2766 index = i % QDIO_MAX_BUFFERS_PER_Q; 2767 buffer = &card->qdio.in_q->bufs[index]; 2768 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) && 2769 qeth_check_qdio_errors(buffer->buffer, 2770 qdio_err, siga_err,"qinerr"))) 2771 qeth_process_inbound_buffer(card, buffer, index); 2772 /* clear buffer and give back to hardware */ 2773 qeth_put_buffer_pool_entry(card, buffer->pool_entry); 2774 qeth_queue_input_buffer(card, index); 2775 } 2776 if (card->options.performance_stats) 2777 card->perf_stats.inbound_time += qeth_get_micros() - 2778 card->perf_stats.inbound_start_time; 2779} 2780 2781static int 2782qeth_handle_send_error(struct qeth_card *card, 2783 struct qeth_qdio_out_buffer *buffer, 2784 unsigned int qdio_err, unsigned int siga_err) 2785{ 2786 int sbalf15 = buffer->buffer->element[15].flags & 0xff; 2787 int cc = siga_err & 3; 2788 2789 QETH_DBF_TEXT(trace, 6, "hdsnderr"); 2790 qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr"); 2791 switch (cc) { 2792 case 0: 2793 if (qdio_err){ 2794 QETH_DBF_TEXT(trace, 1,"lnkfail"); 2795 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); 2796 QETH_DBF_TEXT_(trace,1,"%04x %02x", 2797 (u16)qdio_err, (u8)sbalf15); 2798 return QETH_SEND_ERROR_LINK_FAILURE; 2799 } 2800 return QETH_SEND_ERROR_NONE; 2801 case 2: 2802 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) { 2803 QETH_DBF_TEXT(trace, 1, "SIGAcc2B"); 2804 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); 2805 return QETH_SEND_ERROR_KICK_IT; 2806 } 2807 if ((sbalf15 >= 15) && (sbalf15 <= 31)) 2808 return QETH_SEND_ERROR_RETRY; 2809 return QETH_SEND_ERROR_LINK_FAILURE; 2810 /* look at qdio_error and sbalf 15 */ 2811 case 1: 2812 QETH_DBF_TEXT(trace, 1, "SIGAcc1"); 2813 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); 2814 return QETH_SEND_ERROR_LINK_FAILURE; 2815 case 3: 2816 default: 2817 QETH_DBF_TEXT(trace, 1, "SIGAcc3"); 2818 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card)); 2819 return QETH_SEND_ERROR_KICK_IT; 2820 } 2821} 2822 2823void 2824qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int, 2825 int index, int count) 2826{ 2827 struct qeth_qdio_out_buffer *buf; 2828 int rc; 2829 int i; 2830 unsigned int qdio_flags; 2831 2832 QETH_DBF_TEXT(trace, 6, "flushbuf"); 2833 2834 for (i = index; i < index + count; ++i) { 2835 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; 2836 buf->buffer->element[buf->next_element_to_fill - 1].flags |= 2837 SBAL_FLAGS_LAST_ENTRY; 2838 2839 if (queue->card->info.type == QETH_CARD_TYPE_IQD) 2840 continue; 2841 2842 if (!queue->do_pack){ 2843 if ((atomic_read(&queue->used_buffers) >= 2844 (QETH_HIGH_WATERMARK_PACK - 2845 QETH_WATERMARK_PACK_FUZZ)) && 2846 !atomic_read(&queue->set_pci_flags_count)){ 2847 /* it's likely that we'll go to packing 2848 * mode soon */ 2849 atomic_inc(&queue->set_pci_flags_count); 2850 buf->buffer->element[0].flags |= 0x40; 2851 } 2852 } else { 2853 if (!atomic_read(&queue->set_pci_flags_count)){ 2854 /* 2855 * there's no outstanding PCI any more, so we 2856 * have to request a PCI to be sure that the PCI 2857 * will wake at some time in the future then we 2858 * can flush packed buffers that might still be 2859 * hanging around, which can happen if no 2860 * further send was requested by the stack 2861 */ 2862 atomic_inc(&queue->set_pci_flags_count); 2863 buf->buffer->element[0].flags |= 0x40; 2864 } 2865 } 2866 } 2867 2868 queue->card->dev->trans_start = jiffies; 2869 if (queue->card->options.performance_stats) { 2870 queue->card->perf_stats.outbound_do_qdio_cnt++; 2871 queue->card->perf_stats.outbound_do_qdio_start_time = 2872 qeth_get_micros(); 2873 } 2874 qdio_flags = QDIO_FLAG_SYNC_OUTPUT; 2875 if (under_int) 2876 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT; 2877 if (atomic_read(&queue->set_pci_flags_count)) 2878 qdio_flags |= QDIO_FLAG_PCI_OUT; 2879 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, 2880 queue->queue_no, index, count, NULL); 2881 if (queue->card->options.performance_stats) 2882 queue->card->perf_stats.outbound_do_qdio_time += 2883 qeth_get_micros() - 2884 queue->card->perf_stats.outbound_do_qdio_start_time; 2885 if (rc){ 2886 QETH_DBF_TEXT(trace, 2, "flushbuf"); 2887 QETH_DBF_TEXT_(trace, 2, " err%d", rc); 2888 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card)); 2889 queue->card->stats.tx_errors += count; 2890 /* this must not happen under normal circumstances. if it 2891 * happens something is really wrong -> recover */ 2892 qeth_schedule_recovery(queue->card); 2893 return; 2894 } 2895 atomic_add(count, &queue->used_buffers); 2896 if (queue->card->options.performance_stats) 2897 queue->card->perf_stats.bufs_sent += count; 2898} 2899 2900/* 2901 * Switched to packing state if the number of used buffers on a queue 2902 * reaches a certain limit. 2903 */ 2904static void 2905qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) 2906{ 2907 if (!queue->do_pack) { 2908 if (atomic_read(&queue->used_buffers) 2909 >= QETH_HIGH_WATERMARK_PACK){ 2910 /* switch non-PACKING -> PACKING */ 2911 QETH_DBF_TEXT(trace, 6, "np->pack"); 2912 if (queue->card->options.performance_stats) 2913 queue->card->perf_stats.sc_dp_p++; 2914 queue->do_pack = 1; 2915 } 2916 } 2917} 2918 2919/* 2920 * Switches from packing to non-packing mode. If there is a packing 2921 * buffer on the queue this buffer will be prepared to be flushed. 2922 * In that case 1 is returned to inform the caller. If no buffer 2923 * has to be flushed, zero is returned. 2924 */ 2925static int 2926qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) 2927{ 2928 struct qeth_qdio_out_buffer *buffer; 2929 int flush_count = 0; 2930 2931 if (queue->do_pack) { 2932 if (atomic_read(&queue->used_buffers) 2933 <= QETH_LOW_WATERMARK_PACK) { 2934 /* switch PACKING -> non-PACKING */ 2935 QETH_DBF_TEXT(trace, 6, "pack->np"); 2936 if (queue->card->options.performance_stats) 2937 queue->card->perf_stats.sc_p_dp++; 2938 queue->do_pack = 0; 2939 /* flush packing buffers */ 2940 buffer = &queue->bufs[queue->next_buf_to_fill]; 2941 if ((atomic_read(&buffer->state) == 2942 QETH_QDIO_BUF_EMPTY) && 2943 (buffer->next_element_to_fill > 0)) { 2944 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED); 2945 flush_count++; 2946 queue->next_buf_to_fill = 2947 (queue->next_buf_to_fill + 1) % 2948 QDIO_MAX_BUFFERS_PER_Q; 2949 } 2950 } 2951 } 2952 return flush_count; 2953} 2954 2955/* 2956 * Called to flush a packing buffer if no more pci flags are on the queue. 2957 * Checks if there is a packing buffer and prepares it to be flushed. 2958 * In that case returns 1, otherwise zero. 2959 */ 2960static int 2961qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) 2962{ 2963 struct qeth_qdio_out_buffer *buffer; 2964 2965 buffer = &queue->bufs[queue->next_buf_to_fill]; 2966 if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && 2967 (buffer->next_element_to_fill > 0)){ 2968 /* it's a packing buffer */ 2969 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 2970 queue->next_buf_to_fill = 2971 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; 2972 return 1; 2973 } 2974 return 0; 2975} 2976 2977static void 2978qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) 2979{ 2980 int index; 2981 int flush_cnt = 0; 2982 int q_was_packing = 0; 2983 2984 /* 2985 * check if weed have to switch to non-packing mode or if 2986 * we have to get a pci flag out on the queue 2987 */ 2988 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || 2989 !atomic_read(&queue->set_pci_flags_count)){ 2990 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == 2991 QETH_OUT_Q_UNLOCKED) { 2992 /* 2993 * If we get in here, there was no action in 2994 * do_send_packet. So, we check if there is a 2995 * packing buffer to be flushed here. 2996 */ 2997 netif_stop_queue(queue->card->dev); 2998 index = queue->next_buf_to_fill; 2999 q_was_packing = queue->do_pack; 3000 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); 3001 if (!flush_cnt && 3002 !atomic_read(&queue->set_pci_flags_count)) 3003 flush_cnt += 3004 qeth_flush_buffers_on_no_pci(queue); 3005 if (queue->card->options.performance_stats && 3006 q_was_packing) 3007 queue->card->perf_stats.bufs_sent_pack += 3008 flush_cnt; 3009 if (flush_cnt) 3010 qeth_flush_buffers(queue, 1, index, flush_cnt); 3011 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 3012 } 3013 } 3014} 3015 3016static void 3017qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status, 3018 unsigned int qdio_error, unsigned int siga_error, 3019 unsigned int __queue, int first_element, int count, 3020 unsigned long card_ptr) 3021{ 3022 struct qeth_card *card = (struct qeth_card *) card_ptr; 3023 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; 3024 struct qeth_qdio_out_buffer *buffer; 3025 int i; 3026 3027 QETH_DBF_TEXT(trace, 6, "qdouhdl"); 3028 if (status & QDIO_STATUS_LOOK_FOR_ERROR) { 3029 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){ 3030 QETH_DBF_TEXT(trace, 2, "achkcond"); 3031 QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card)); 3032 QETH_DBF_TEXT_(trace, 2, "%08x", status); 3033 netif_stop_queue(card->dev); 3034 qeth_schedule_recovery(card); 3035 return; 3036 } 3037 } 3038 if (card->options.performance_stats) { 3039 card->perf_stats.outbound_handler_cnt++; 3040 card->perf_stats.outbound_handler_start_time = 3041 qeth_get_micros(); 3042 } 3043 for(i = first_element; i < (first_element + count); ++i){ 3044 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; 3045 /*we only handle the KICK_IT error by doing a recovery */ 3046 if (qeth_handle_send_error(card, buffer, 3047 qdio_error, siga_error) 3048 == QETH_SEND_ERROR_KICK_IT){ 3049 netif_stop_queue(card->dev); 3050 qeth_schedule_recovery(card); 3051 return; 3052 } 3053 qeth_clear_output_buffer(queue, buffer); 3054 } 3055 atomic_sub(count, &queue->used_buffers); 3056 /* check if we need to do something on this outbound queue */ 3057 if (card->info.type != QETH_CARD_TYPE_IQD) 3058 qeth_check_outbound_queue(queue); 3059 3060 netif_wake_queue(queue->card->dev); 3061 if (card->options.performance_stats) 3062 card->perf_stats.outbound_handler_time += qeth_get_micros() - 3063 card->perf_stats.outbound_handler_start_time; 3064} 3065 3066static void 3067qeth_create_qib_param_field(struct qeth_card *card, char *param_field) 3068{ 3069 3070 param_field[0] = _ascebc['P']; 3071 param_field[1] = _ascebc['C']; 3072 param_field[2] = _ascebc['I']; 3073 param_field[3] = _ascebc['T']; 3074 *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); 3075 *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); 3076 *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); 3077} 3078 3079static void 3080qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field) 3081{ 3082 param_field[16] = _ascebc['B']; 3083 param_field[17] = _ascebc['L']; 3084 param_field[18] = _ascebc['K']; 3085 param_field[19] = _ascebc['T']; 3086 *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; 3087 *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; 3088 *((unsigned int *) (¶m_field[28])) = card->info.blkt.inter_packet_jumbo; 3089} 3090 3091static void 3092qeth_initialize_working_pool_list(struct qeth_card *card) 3093{ 3094 struct qeth_buffer_pool_entry *entry; 3095 3096 QETH_DBF_TEXT(trace,5,"inwrklst"); 3097 3098 list_for_each_entry(entry, 3099 &card->qdio.init_pool.entry_list, init_list) { 3100 qeth_put_buffer_pool_entry(card,entry); 3101 } 3102} 3103 3104static void 3105qeth_clear_working_pool_list(struct qeth_card *card) 3106{ 3107 struct qeth_buffer_pool_entry *pool_entry, *tmp; 3108 3109 QETH_DBF_TEXT(trace,5,"clwrklst"); 3110 list_for_each_entry_safe(pool_entry, tmp, 3111 &card->qdio.in_buf_pool.entry_list, list){ 3112 list_del(&pool_entry->list); 3113 } 3114} 3115 3116static void 3117qeth_free_buffer_pool(struct qeth_card *card) 3118{ 3119 struct qeth_buffer_pool_entry *pool_entry, *tmp; 3120 int i=0; 3121 QETH_DBF_TEXT(trace,5,"freepool"); 3122 list_for_each_entry_safe(pool_entry, tmp, 3123 &card->qdio.init_pool.entry_list, init_list){ 3124 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) 3125 free_page((unsigned long)pool_entry->elements[i]); 3126 list_del(&pool_entry->init_list); 3127 kfree(pool_entry); 3128 } 3129} 3130 3131static int 3132qeth_alloc_buffer_pool(struct qeth_card *card) 3133{ 3134 struct qeth_buffer_pool_entry *pool_entry; 3135 void *ptr; 3136 int i, j; 3137 3138 QETH_DBF_TEXT(trace,5,"alocpool"); 3139 for (i = 0; i < card->qdio.init_pool.buf_count; ++i){ 3140 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL); 3141 if (!pool_entry){ 3142 qeth_free_buffer_pool(card); 3143 return -ENOMEM; 3144 } 3145 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){ 3146 ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA); 3147 if (!ptr) { 3148 while (j > 0) 3149 free_page((unsigned long) 3150 pool_entry->elements[--j]); 3151 kfree(pool_entry); 3152 qeth_free_buffer_pool(card); 3153 return -ENOMEM; 3154 } 3155 pool_entry->elements[j] = ptr; 3156 } 3157 list_add(&pool_entry->init_list, 3158 &card->qdio.init_pool.entry_list); 3159 } 3160 return 0; 3161} 3162 3163int 3164qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) 3165{ 3166 QETH_DBF_TEXT(trace, 2, "realcbp"); 3167 3168 if ((card->state != CARD_STATE_DOWN) && 3169 (card->state != CARD_STATE_RECOVER)) 3170 return -EPERM; 3171 3172 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ 3173 qeth_clear_working_pool_list(card); 3174 qeth_free_buffer_pool(card); 3175 card->qdio.in_buf_pool.buf_count = bufcnt; 3176 card->qdio.init_pool.buf_count = bufcnt; 3177 return qeth_alloc_buffer_pool(card); 3178} 3179 3180static int 3181qeth_alloc_qdio_buffers(struct qeth_card *card) 3182{ 3183 int i, j; 3184 3185 QETH_DBF_TEXT(setup, 2, "allcqdbf"); 3186 3187 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, 3188 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) 3189 return 0; 3190 3191 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), 3192 GFP_KERNEL|GFP_DMA); 3193 if (!card->qdio.in_q) 3194 goto out_nomem; 3195 QETH_DBF_TEXT(setup, 2, "inq"); 3196 QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *)); 3197 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); 3198 /* give inbound qeth_qdio_buffers their qdio_buffers */ 3199 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) 3200 card->qdio.in_q->bufs[i].buffer = 3201 &card->qdio.in_q->qdio_bufs[i]; 3202 /* inbound buffer pool */ 3203 if (qeth_alloc_buffer_pool(card)) 3204 goto out_freeinq; 3205 /* outbound */ 3206 card->qdio.out_qs = 3207 kmalloc(card->qdio.no_out_queues * 3208 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); 3209 if (!card->qdio.out_qs) 3210 goto out_freepool; 3211 for (i = 0; i < card->qdio.no_out_queues; ++i) { 3212 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), 3213 GFP_KERNEL|GFP_DMA); 3214 if (!card->qdio.out_qs[i]) 3215 goto out_freeoutq; 3216 QETH_DBF_TEXT_(setup, 2, "outq %i", i); 3217 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *)); 3218 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); 3219 card->qdio.out_qs[i]->queue_no = i; 3220 /* give outbound qeth_qdio_buffers their qdio_buffers */ 3221 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){ 3222 card->qdio.out_qs[i]->bufs[j].buffer = 3223 &card->qdio.out_qs[i]->qdio_bufs[j]; 3224 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j]. 3225 skb_list); 3226 lockdep_set_class( 3227 &card->qdio.out_qs[i]->bufs[j].skb_list.lock, 3228 &qdio_out_skb_queue_key); 3229 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); 3230 } 3231 } 3232 return 0; 3233 3234out_freeoutq: 3235 while (i > 0) 3236 kfree(card->qdio.out_qs[--i]); 3237 kfree(card->qdio.out_qs); 3238out_freepool: 3239 qeth_free_buffer_pool(card); 3240out_freeinq: 3241 kfree(card->qdio.in_q); 3242out_nomem: 3243 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 3244 return -ENOMEM; 3245} 3246 3247static void 3248qeth_free_qdio_buffers(struct qeth_card *card) 3249{ 3250 int i, j; 3251 3252 QETH_DBF_TEXT(trace, 2, "freeqdbf"); 3253 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == 3254 QETH_QDIO_UNINITIALIZED) 3255 return; 3256 kfree(card->qdio.in_q); 3257 /* inbound buffer pool */ 3258 qeth_free_buffer_pool(card); 3259 /* free outbound qdio_qs */ 3260 for (i = 0; i < card->qdio.no_out_queues; ++i){ 3261 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) 3262 qeth_clear_output_buffer(card->qdio.out_qs[i], 3263 &card->qdio.out_qs[i]->bufs[j]); 3264 kfree(card->qdio.out_qs[i]); 3265 } 3266 kfree(card->qdio.out_qs); 3267} 3268 3269static void 3270qeth_clear_qdio_buffers(struct qeth_card *card) 3271{ 3272 int i, j; 3273 3274 QETH_DBF_TEXT(trace, 2, "clearqdbf"); 3275 /* clear outbound buffers to free skbs */ 3276 for (i = 0; i < card->qdio.no_out_queues; ++i) 3277 if (card->qdio.out_qs[i]){ 3278 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) 3279 qeth_clear_output_buffer(card->qdio.out_qs[i], 3280 &card->qdio.out_qs[i]->bufs[j]); 3281 } 3282} 3283 3284static void 3285qeth_init_qdio_info(struct qeth_card *card) 3286{ 3287 QETH_DBF_TEXT(setup, 4, "intqdinf"); 3288 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 3289 /* inbound */ 3290 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; 3291 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; 3292 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; 3293 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); 3294 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); 3295} 3296 3297static int 3298qeth_init_qdio_queues(struct qeth_card *card) 3299{ 3300 int i, j; 3301 int rc; 3302 3303 QETH_DBF_TEXT(setup, 2, "initqdqs"); 3304 3305 /* inbound queue */ 3306 memset(card->qdio.in_q->qdio_bufs, 0, 3307 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); 3308 qeth_initialize_working_pool_list(card); 3309 /*give only as many buffers to hardware as we have buffer pool entries*/ 3310 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) 3311 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); 3312 card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1; 3313 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, 3314 card->qdio.in_buf_pool.buf_count - 1, NULL); 3315 if (rc) { 3316 QETH_DBF_TEXT_(setup, 2, "1err%d", rc); 3317 return rc; 3318 } 3319 rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0); 3320 if (rc) { 3321 QETH_DBF_TEXT_(setup, 2, "2err%d", rc); 3322 return rc; 3323 } 3324 /* outbound queue */ 3325 for (i = 0; i < card->qdio.no_out_queues; ++i){ 3326 memset(card->qdio.out_qs[i]->qdio_bufs, 0, 3327 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); 3328 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){ 3329 qeth_clear_output_buffer(card->qdio.out_qs[i], 3330 &card->qdio.out_qs[i]->bufs[j]); 3331 } 3332 card->qdio.out_qs[i]->card = card; 3333 card->qdio.out_qs[i]->next_buf_to_fill = 0; 3334 card->qdio.out_qs[i]->do_pack = 0; 3335 atomic_set(&card->qdio.out_qs[i]->used_buffers,0); 3336 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); 3337 atomic_set(&card->qdio.out_qs[i]->state, 3338 QETH_OUT_Q_UNLOCKED); 3339 } 3340 return 0; 3341} 3342 3343static int 3344qeth_qdio_establish(struct qeth_card *card) 3345{ 3346 struct qdio_initialize init_data; 3347 char *qib_param_field; 3348 struct qdio_buffer **in_sbal_ptrs; 3349 struct qdio_buffer **out_sbal_ptrs; 3350 int i, j, k; 3351 int rc = 0; 3352 3353 QETH_DBF_TEXT(setup, 2, "qdioest"); 3354 3355 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), 3356 GFP_KERNEL); 3357 if (!qib_param_field) 3358 return -ENOMEM; 3359 3360 qeth_create_qib_param_field(card, qib_param_field); 3361 qeth_create_qib_param_field_blkt(card, qib_param_field); 3362 3363 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), 3364 GFP_KERNEL); 3365 if (!in_sbal_ptrs) { 3366 kfree(qib_param_field); 3367 return -ENOMEM; 3368 } 3369 for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) 3370 in_sbal_ptrs[i] = (struct qdio_buffer *) 3371 virt_to_phys(card->qdio.in_q->bufs[i].buffer); 3372 3373 out_sbal_ptrs = 3374 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * 3375 sizeof(void *), GFP_KERNEL); 3376 if (!out_sbal_ptrs) { 3377 kfree(in_sbal_ptrs); 3378 kfree(qib_param_field); 3379 return -ENOMEM; 3380 } 3381 for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i) 3382 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){ 3383 out_sbal_ptrs[k] = (struct qdio_buffer *) 3384 virt_to_phys(card->qdio.out_qs[i]-> 3385 bufs[j].buffer); 3386 } 3387 3388 memset(&init_data, 0, sizeof(struct qdio_initialize)); 3389 init_data.cdev = CARD_DDEV(card); 3390 init_data.q_format = qeth_get_qdio_q_format(card); 3391 init_data.qib_param_field_format = 0; 3392 init_data.qib_param_field = qib_param_field; 3393 init_data.min_input_threshold = QETH_MIN_INPUT_THRESHOLD; 3394 init_data.max_input_threshold = QETH_MAX_INPUT_THRESHOLD; 3395 init_data.min_output_threshold = QETH_MIN_OUTPUT_THRESHOLD; 3396 init_data.max_output_threshold = QETH_MAX_OUTPUT_THRESHOLD; 3397 init_data.no_input_qs = 1; 3398 init_data.no_output_qs = card->qdio.no_out_queues; 3399 init_data.input_handler = (qdio_handler_t *) 3400 qeth_qdio_input_handler; 3401 init_data.output_handler = (qdio_handler_t *) 3402 qeth_qdio_output_handler; 3403 init_data.int_parm = (unsigned long) card; 3404 init_data.flags = QDIO_INBOUND_0COPY_SBALS | 3405 QDIO_OUTBOUND_0COPY_SBALS | 3406 QDIO_USE_OUTBOUND_PCIS; 3407 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; 3408 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; 3409 3410 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, 3411 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) 3412 if ((rc = qdio_initialize(&init_data))) 3413 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 3414 3415 kfree(out_sbal_ptrs); 3416 kfree(in_sbal_ptrs); 3417 kfree(qib_param_field); 3418 return rc; 3419} 3420 3421static int 3422qeth_qdio_activate(struct qeth_card *card) 3423{ 3424 QETH_DBF_TEXT(setup,3,"qdioact"); 3425 return qdio_activate(CARD_DDEV(card), 0); 3426} 3427 3428static int 3429qeth_clear_channel(struct qeth_channel *channel) 3430{ 3431 unsigned long flags; 3432 struct qeth_card *card; 3433 int rc; 3434 3435 QETH_DBF_TEXT(trace,3,"clearch"); 3436 card = CARD_FROM_CDEV(channel->ccwdev); 3437 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); 3438 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); 3439 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); 3440 3441 if (rc) 3442 return rc; 3443 rc = wait_event_interruptible_timeout(card->wait_q, 3444 channel->state==CH_STATE_STOPPED, QETH_TIMEOUT); 3445 if (rc == -ERESTARTSYS) 3446 return rc; 3447 if (channel->state != CH_STATE_STOPPED) 3448 return -ETIME; 3449 channel->state = CH_STATE_DOWN; 3450 return 0; 3451} 3452 3453static int 3454qeth_halt_channel(struct qeth_channel *channel) 3455{ 3456 unsigned long flags; 3457 struct qeth_card *card; 3458 int rc; 3459 3460 QETH_DBF_TEXT(trace,3,"haltch"); 3461 card = CARD_FROM_CDEV(channel->ccwdev); 3462 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); 3463 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); 3464 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); 3465 3466 if (rc) 3467 return rc; 3468 rc = wait_event_interruptible_timeout(card->wait_q, 3469 channel->state==CH_STATE_HALTED, QETH_TIMEOUT); 3470 if (rc == -ERESTARTSYS) 3471 return rc; 3472 if (channel->state != CH_STATE_HALTED) 3473 return -ETIME; 3474 return 0; 3475} 3476 3477static int 3478qeth_halt_channels(struct qeth_card *card) 3479{ 3480 int rc1 = 0, rc2=0, rc3 = 0; 3481 3482 QETH_DBF_TEXT(trace,3,"haltchs"); 3483 rc1 = qeth_halt_channel(&card->read); 3484 rc2 = qeth_halt_channel(&card->write); 3485 rc3 = qeth_halt_channel(&card->data); 3486 if (rc1) 3487 return rc1; 3488 if (rc2) 3489 return rc2; 3490 return rc3; 3491} 3492static int 3493qeth_clear_channels(struct qeth_card *card) 3494{ 3495 int rc1 = 0, rc2=0, rc3 = 0; 3496 3497 QETH_DBF_TEXT(trace,3,"clearchs"); 3498 rc1 = qeth_clear_channel(&card->read); 3499 rc2 = qeth_clear_channel(&card->write); 3500 rc3 = qeth_clear_channel(&card->data); 3501 if (rc1) 3502 return rc1; 3503 if (rc2) 3504 return rc2; 3505 return rc3; 3506} 3507 3508static int 3509qeth_clear_halt_card(struct qeth_card *card, int halt) 3510{ 3511 int rc = 0; 3512 3513 QETH_DBF_TEXT(trace,3,"clhacrd"); 3514 QETH_DBF_HEX(trace, 3, &card, sizeof(void *)); 3515 3516 if (halt) 3517 rc = qeth_halt_channels(card); 3518 if (rc) 3519 return rc; 3520 return qeth_clear_channels(card); 3521} 3522 3523static int 3524qeth_qdio_clear_card(struct qeth_card *card, int use_halt) 3525{ 3526 int rc = 0; 3527 3528 QETH_DBF_TEXT(trace,3,"qdioclr"); 3529 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, 3530 QETH_QDIO_CLEANING)) { 3531 case QETH_QDIO_ESTABLISHED: 3532 if ((rc = qdio_cleanup(CARD_DDEV(card), 3533 (card->info.type == QETH_CARD_TYPE_IQD) ? 3534 QDIO_FLAG_CLEANUP_USING_HALT : 3535 QDIO_FLAG_CLEANUP_USING_CLEAR))) 3536 QETH_DBF_TEXT_(trace, 3, "1err%d", rc); 3537 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 3538 break; 3539 case QETH_QDIO_CLEANING: 3540 return rc; 3541 default: 3542 break; 3543 } 3544 if ((rc = qeth_clear_halt_card(card, use_halt))) 3545 QETH_DBF_TEXT_(trace, 3, "2err%d", rc); 3546 card->state = CARD_STATE_DOWN; 3547 return rc; 3548} 3549 3550static int 3551qeth_dm_act(struct qeth_card *card) 3552{ 3553 int rc; 3554 struct qeth_cmd_buffer *iob; 3555 3556 QETH_DBF_TEXT(setup,2,"dmact"); 3557 3558 iob = qeth_wait_for_buffer(&card->write); 3559 memcpy(iob->data, DM_ACT, DM_ACT_SIZE); 3560 3561 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), 3562 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 3563 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), 3564 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 3565 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); 3566 return rc; 3567} 3568 3569static int 3570qeth_mpc_initialize(struct qeth_card *card) 3571{ 3572 int rc; 3573 3574 QETH_DBF_TEXT(setup,2,"mpcinit"); 3575 3576 if ((rc = qeth_issue_next_read(card))){ 3577 QETH_DBF_TEXT_(setup, 2, "1err%d", rc); 3578 return rc; 3579 } 3580 if ((rc = qeth_cm_enable(card))){ 3581 QETH_DBF_TEXT_(setup, 2, "2err%d", rc); 3582 goto out_qdio; 3583 } 3584 if ((rc = qeth_cm_setup(card))){ 3585 QETH_DBF_TEXT_(setup, 2, "3err%d", rc); 3586 goto out_qdio; 3587 } 3588 if ((rc = qeth_ulp_enable(card))){ 3589 QETH_DBF_TEXT_(setup, 2, "4err%d", rc); 3590 goto out_qdio; 3591 } 3592 if ((rc = qeth_ulp_setup(card))){ 3593 QETH_DBF_TEXT_(setup, 2, "5err%d", rc); 3594 goto out_qdio; 3595 } 3596 if ((rc = qeth_alloc_qdio_buffers(card))){ 3597 QETH_DBF_TEXT_(setup, 2, "5err%d", rc); 3598 goto out_qdio; 3599 } 3600 if ((rc = qeth_qdio_establish(card))){ 3601 QETH_DBF_TEXT_(setup, 2, "6err%d", rc); 3602 qeth_free_qdio_buffers(card); 3603 goto out_qdio; 3604 } 3605 if ((rc = qeth_qdio_activate(card))){ 3606 QETH_DBF_TEXT_(setup, 2, "7err%d", rc); 3607 goto out_qdio; 3608 } 3609 if ((rc = qeth_dm_act(card))){ 3610 QETH_DBF_TEXT_(setup, 2, "8err%d", rc); 3611 goto out_qdio; 3612 } 3613 3614 return 0; 3615out_qdio: 3616 qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD); 3617 return rc; 3618} 3619 3620static struct net_device * 3621qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype) 3622{ 3623 struct net_device *dev = NULL; 3624 3625 switch (type) { 3626 case QETH_CARD_TYPE_OSAE: 3627 switch (linktype) { 3628 case QETH_LINK_TYPE_LANE_TR: 3629 case QETH_LINK_TYPE_HSTR: 3630#ifdef CONFIG_TR 3631 dev = alloc_trdev(0); 3632#endif /* CONFIG_TR */ 3633 break; 3634 default: 3635 dev = alloc_etherdev(0); 3636 } 3637 break; 3638 case QETH_CARD_TYPE_IQD: 3639 dev = alloc_netdev(0, "hsi%d", ether_setup); 3640 break; 3641 case QETH_CARD_TYPE_OSN: 3642 dev = alloc_netdev(0, "osn%d", ether_setup); 3643 break; 3644 default: 3645 dev = alloc_etherdev(0); 3646 } 3647 return dev; 3648} 3649 3650/*hard_header fake function; used in case fake_ll is set */ 3651static int 3652qeth_fake_header(struct sk_buff *skb, struct net_device *dev, 3653 unsigned short type, void *daddr, void *saddr, 3654 unsigned len) 3655{ 3656 if(dev->type == ARPHRD_IEEE802_TR){ 3657 struct trh_hdr *hdr; 3658 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR); 3659 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN); 3660 memcpy(hdr->daddr, "FAKELL", TR_ALEN); 3661 return QETH_FAKE_LL_LEN_TR; 3662 3663 } else { 3664 struct ethhdr *hdr; 3665 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH); 3666 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN); 3667 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN); 3668 if (type != ETH_P_802_3) 3669 hdr->h_proto = htons(type); 3670 else 3671 hdr->h_proto = htons(len); 3672 return QETH_FAKE_LL_LEN_ETH; 3673 3674 } 3675} 3676 3677static int 3678qeth_send_packet(struct qeth_card *, struct sk_buff *); 3679 3680static int 3681qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) 3682{ 3683 int rc; 3684 struct qeth_card *card; 3685 3686 QETH_DBF_TEXT(trace, 6, "hrdstxmi"); 3687 card = (struct qeth_card *)dev->priv; 3688 if (skb==NULL) { 3689 card->stats.tx_dropped++; 3690 card->stats.tx_errors++; 3691 /* return OK; otherwise ksoftirqd goes to 100% */ 3692 return NETDEV_TX_OK; 3693 } 3694 if ((card->state != CARD_STATE_UP) || !card->lan_online) { 3695 card->stats.tx_dropped++; 3696 card->stats.tx_errors++; 3697 card->stats.tx_carrier_errors++; 3698 dev_kfree_skb_any(skb); 3699 /* return OK; otherwise ksoftirqd goes to 100% */ 3700 return NETDEV_TX_OK; 3701 } 3702 if (card->options.performance_stats) { 3703 card->perf_stats.outbound_cnt++; 3704 card->perf_stats.outbound_start_time = qeth_get_micros(); 3705 } 3706 netif_stop_queue(dev); 3707 if ((rc = qeth_send_packet(card, skb))) { 3708 if (rc == -EBUSY) { 3709 return NETDEV_TX_BUSY; 3710 } else { 3711 card->stats.tx_errors++; 3712 card->stats.tx_dropped++; 3713 dev_kfree_skb_any(skb); 3714 /*set to OK; otherwise ksoftirqd goes to 100% */ 3715 rc = NETDEV_TX_OK; 3716 } 3717 } 3718 netif_wake_queue(dev); 3719 if (card->options.performance_stats) 3720 card->perf_stats.outbound_time += qeth_get_micros() - 3721 card->perf_stats.outbound_start_time; 3722 return rc; 3723} 3724 3725static int 3726qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card) 3727{ 3728 int rc = 0; 3729#ifdef CONFIG_QETH_VLAN 3730 struct vlan_group *vg; 3731 int i; 3732 3733 if (!(vg = card->vlangrp)) 3734 return rc; 3735 3736 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){ 3737 if (vlan_group_get_device(vg, i) == dev){ 3738 rc = QETH_VLAN_CARD; 3739 break; 3740 } 3741 } 3742 if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card)) 3743 return 0; 3744 3745#endif 3746 return rc; 3747} 3748 3749static int 3750qeth_verify_dev(struct net_device *dev) 3751{ 3752 struct qeth_card *card; 3753 unsigned long flags; 3754 int rc = 0; 3755 3756 read_lock_irqsave(&qeth_card_list.rwlock, flags); 3757 list_for_each_entry(card, &qeth_card_list.list, list){ 3758 if (card->dev == dev){ 3759 rc = QETH_REAL_CARD; 3760 break; 3761 } 3762 rc = qeth_verify_vlan_dev(dev, card); 3763 if (rc) 3764 break; 3765 } 3766 read_unlock_irqrestore(&qeth_card_list.rwlock, flags); 3767 3768 return rc; 3769} 3770 3771static struct qeth_card * 3772qeth_get_card_from_dev(struct net_device *dev) 3773{ 3774 struct qeth_card *card = NULL; 3775 int rc; 3776 3777 rc = qeth_verify_dev(dev); 3778 if (rc == QETH_REAL_CARD) 3779 card = (struct qeth_card *)dev->priv; 3780 else if (rc == QETH_VLAN_CARD) 3781 card = (struct qeth_card *) 3782 VLAN_DEV_INFO(dev)->real_dev->priv; 3783 3784 QETH_DBF_TEXT_(trace, 4, "%d", rc); 3785 return card ; 3786} 3787 3788static void 3789qeth_tx_timeout(struct net_device *dev) 3790{ 3791 struct qeth_card *card; 3792 3793 card = (struct qeth_card *) dev->priv; 3794 card->stats.tx_errors++; 3795 qeth_schedule_recovery(card); 3796} 3797 3798static int 3799qeth_open(struct net_device *dev) 3800{ 3801 struct qeth_card *card; 3802 3803 QETH_DBF_TEXT(trace, 4, "qethopen"); 3804 3805 card = (struct qeth_card *) dev->priv; 3806 3807 if (card->state != CARD_STATE_SOFTSETUP) 3808 return -ENODEV; 3809 3810 if ( (card->info.type != QETH_CARD_TYPE_OSN) && 3811 (card->options.layer2) && 3812 (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) { 3813 QETH_DBF_TEXT(trace,4,"nomacadr"); 3814 return -EPERM; 3815 } 3816 card->data.state = CH_STATE_UP; 3817 card->state = CARD_STATE_UP; 3818 card->dev->flags |= IFF_UP; 3819 netif_start_queue(dev); 3820 3821 if (!card->lan_online && netif_carrier_ok(dev)) 3822 netif_carrier_off(dev); 3823 return 0; 3824} 3825 3826static int 3827qeth_stop(struct net_device *dev) 3828{ 3829 struct qeth_card *card; 3830 3831 QETH_DBF_TEXT(trace, 4, "qethstop"); 3832 3833 card = (struct qeth_card *) dev->priv; 3834 3835 netif_tx_disable(dev); 3836 card->dev->flags &= ~IFF_UP; 3837 if (card->state == CARD_STATE_UP) 3838 card->state = CARD_STATE_SOFTSETUP; 3839 return 0; 3840} 3841 3842static int 3843qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb) 3844{ 3845 int cast_type = RTN_UNSPEC; 3846 3847 if (card->info.type == QETH_CARD_TYPE_OSN) 3848 return cast_type; 3849 3850 if (skb->dst && skb->dst->neighbour){ 3851 cast_type = skb->dst->neighbour->type; 3852 if ((cast_type == RTN_BROADCAST) || 3853 (cast_type == RTN_MULTICAST) || 3854 (cast_type == RTN_ANYCAST)) 3855 return cast_type; 3856 else 3857 return RTN_UNSPEC; 3858 } 3859 /* try something else */ 3860 if (skb->protocol == ETH_P_IPV6) 3861 return (skb_network_header(skb)[24] == 0xff) ? 3862 RTN_MULTICAST : 0; 3863 else if (skb->protocol == ETH_P_IP) 3864 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ? 3865 RTN_MULTICAST : 0; 3866 /* ... */ 3867 if (!memcmp(skb->data, skb->dev->broadcast, 6)) 3868 return RTN_BROADCAST; 3869 else { 3870 u16 hdr_mac; 3871 3872 hdr_mac = *((u16 *)skb->data); 3873 /* tr multicast? */ 3874 switch (card->info.link_type) { 3875 case QETH_LINK_TYPE_HSTR: 3876 case QETH_LINK_TYPE_LANE_TR: 3877 if ((hdr_mac == QETH_TR_MAC_NC) || 3878 (hdr_mac == QETH_TR_MAC_C)) 3879 return RTN_MULTICAST; 3880 break; 3881 /* eth or so multicast? */ 3882 default: 3883 if ((hdr_mac == QETH_ETH_MAC_V4) || 3884 (hdr_mac == QETH_ETH_MAC_V6)) 3885 return RTN_MULTICAST; 3886 } 3887 } 3888 return cast_type; 3889} 3890 3891static int 3892qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 3893 int ipv, int cast_type) 3894{ 3895 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE)) 3896 return card->qdio.default_out_queue; 3897 switch (card->qdio.no_out_queues) { 3898 case 4: 3899 if (cast_type && card->info.is_multicast_different) 3900 return card->info.is_multicast_different & 3901 (card->qdio.no_out_queues - 1); 3902 if (card->qdio.do_prio_queueing && (ipv == 4)) { 3903 const u8 tos = ip_hdr(skb)->tos; 3904 3905 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){ 3906 if (tos & IP_TOS_NOTIMPORTANT) 3907 return 3; 3908 if (tos & IP_TOS_HIGHRELIABILITY) 3909 return 2; 3910 if (tos & IP_TOS_HIGHTHROUGHPUT) 3911 return 1; 3912 if (tos & IP_TOS_LOWDELAY) 3913 return 0; 3914 } 3915 if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC) 3916 return 3 - (tos >> 6); 3917 } else if (card->qdio.do_prio_queueing && (ipv == 6)) { 3918 /* TODO: IPv6!!! */ 3919 } 3920 return card->qdio.default_out_queue; 3921 case 1: /* fallthrough for single-out-queue 1920-device */ 3922 default: 3923 return card->qdio.default_out_queue; 3924 } 3925} 3926 3927static inline int 3928qeth_get_ip_version(struct sk_buff *skb) 3929{ 3930 switch (skb->protocol) { 3931 case ETH_P_IPV6: 3932 return 6; 3933 case ETH_P_IP: 3934 return 4; 3935 default: 3936 return 0; 3937 } 3938} 3939 3940static struct qeth_hdr * 3941__qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv) 3942{ 3943#ifdef CONFIG_QETH_VLAN 3944 u16 *tag; 3945 if (card->vlangrp && vlan_tx_tag_present(skb) && 3946 ((ipv == 6) || card->options.layer2) ) { 3947 /* 3948 * Move the mac addresses (6 bytes src, 6 bytes dest) 3949 * to the beginning of the new header. We are using three 3950 * memcpys instead of one memmove to save cycles. 3951 */ 3952 skb_push(skb, VLAN_HLEN); 3953 skb_copy_to_linear_data(skb, skb->data + 4, 4); 3954 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4); 3955 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4); 3956 tag = (u16 *)(skb->data + 12); 3957 /* 3958 * first two bytes = ETH_P_8021Q (0x8100) 3959 * second two bytes = VLANID 3960 */ 3961 *tag = __constant_htons(ETH_P_8021Q); 3962 *(tag + 1) = htons(vlan_tx_tag_get(skb)); 3963 } 3964#endif 3965 return ((struct qeth_hdr *) 3966 qeth_push_skb(card, skb, sizeof(struct qeth_hdr))); 3967} 3968 3969static void 3970__qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb) 3971{ 3972 if (orig_skb != new_skb) 3973 dev_kfree_skb_any(new_skb); 3974} 3975 3976static struct sk_buff * 3977qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, 3978 struct qeth_hdr **hdr, int ipv) 3979{ 3980 struct sk_buff *new_skb, *new_skb2; 3981 3982 QETH_DBF_TEXT(trace, 6, "prepskb"); 3983 new_skb = skb; 3984 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC); 3985 if (!new_skb) 3986 return NULL; 3987 new_skb2 = qeth_realloc_headroom(card, new_skb, 3988 sizeof(struct qeth_hdr)); 3989 if (!new_skb2) { 3990 __qeth_free_new_skb(skb, new_skb); 3991 return NULL; 3992 } 3993 if (new_skb != skb) 3994 __qeth_free_new_skb(new_skb2, new_skb); 3995 new_skb = new_skb2; 3996 *hdr = __qeth_prepare_skb(card, new_skb, ipv); 3997 if (*hdr == NULL) { 3998 __qeth_free_new_skb(skb, new_skb); 3999 return NULL; 4000 } 4001 return new_skb; 4002} 4003 4004static inline u8 4005qeth_get_qeth_hdr_flags4(int cast_type) 4006{ 4007 if (cast_type == RTN_MULTICAST) 4008 return QETH_CAST_MULTICAST; 4009 if (cast_type == RTN_BROADCAST) 4010 return QETH_CAST_BROADCAST; 4011 return QETH_CAST_UNICAST; 4012} 4013 4014static inline u8 4015qeth_get_qeth_hdr_flags6(int cast_type) 4016{ 4017 u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6; 4018 if (cast_type == RTN_MULTICAST) 4019 return ct | QETH_CAST_MULTICAST; 4020 if (cast_type == RTN_ANYCAST) 4021 return ct | QETH_CAST_ANYCAST; 4022 if (cast_type == RTN_BROADCAST) 4023 return ct | QETH_CAST_BROADCAST; 4024 return ct | QETH_CAST_UNICAST; 4025} 4026 4027static void 4028qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr, 4029 struct sk_buff *skb) 4030{ 4031 __u16 hdr_mac; 4032 4033 if (!memcmp(skb->data+QETH_HEADER_SIZE, 4034 skb->dev->broadcast,6)) { /* broadcast? */ 4035 *(__u32 *)hdr->hdr.l2.flags |= 4036 QETH_LAYER2_FLAG_BROADCAST << 8; 4037 return; 4038 } 4039 hdr_mac=*((__u16*)skb->data); 4040 /* tr multicast? */ 4041 switch (card->info.link_type) { 4042 case QETH_LINK_TYPE_HSTR: 4043 case QETH_LINK_TYPE_LANE_TR: 4044 if ((hdr_mac == QETH_TR_MAC_NC) || 4045 (hdr_mac == QETH_TR_MAC_C) ) 4046 *(__u32 *)hdr->hdr.l2.flags |= 4047 QETH_LAYER2_FLAG_MULTICAST << 8; 4048 else 4049 *(__u32 *)hdr->hdr.l2.flags |= 4050 QETH_LAYER2_FLAG_UNICAST << 8; 4051 break; 4052 /* eth or so multicast? */ 4053 default: 4054 if ( (hdr_mac==QETH_ETH_MAC_V4) || 4055 (hdr_mac==QETH_ETH_MAC_V6) ) 4056 *(__u32 *)hdr->hdr.l2.flags |= 4057 QETH_LAYER2_FLAG_MULTICAST << 8; 4058 else 4059 *(__u32 *)hdr->hdr.l2.flags |= 4060 QETH_LAYER2_FLAG_UNICAST << 8; 4061 } 4062} 4063 4064static void 4065qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, 4066 struct sk_buff *skb, int cast_type) 4067{ 4068 memset(hdr, 0, sizeof(struct qeth_hdr)); 4069 hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2; 4070 4071 /* set byte 0 to "0x02" and byte 3 to casting flags */ 4072 if (cast_type==RTN_MULTICAST) 4073 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8; 4074 else if (cast_type==RTN_BROADCAST) 4075 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8; 4076 else 4077 qeth_layer2_get_packet_type(card, hdr, skb); 4078 4079 hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE; 4080#ifdef CONFIG_QETH_VLAN 4081 /* VSWITCH relies on the VLAN 4082 * information to be present in 4083 * the QDIO header */ 4084 if ((card->vlangrp != NULL) && 4085 vlan_tx_tag_present(skb)) { 4086 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8; 4087 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb); 4088 } 4089#endif 4090} 4091 4092void 4093qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, 4094 struct sk_buff *skb, int ipv, int cast_type) 4095{ 4096 QETH_DBF_TEXT(trace, 6, "fillhdr"); 4097 4098 memset(hdr, 0, sizeof(struct qeth_hdr)); 4099 if (card->options.layer2) { 4100 qeth_layer2_fill_header(card, hdr, skb, cast_type); 4101 return; 4102 } 4103 hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3; 4104 hdr->hdr.l3.ext_flags = 0; 4105#ifdef CONFIG_QETH_VLAN 4106 /* 4107 * before we're going to overwrite this location with next hop ip. 4108 * v6 uses passthrough, v4 sets the tag in the QDIO header. 4109 */ 4110 if (card->vlangrp && vlan_tx_tag_present(skb)) { 4111 hdr->hdr.l3.ext_flags = (ipv == 4) ? 4112 QETH_HDR_EXT_VLAN_FRAME : 4113 QETH_HDR_EXT_INCLUDE_VLAN_TAG; 4114 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb); 4115 } 4116#endif /* CONFIG_QETH_VLAN */ 4117 hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr); 4118 if (ipv == 4) { /* IPv4 */ 4119 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type); 4120 memset(hdr->hdr.l3.dest_addr, 0, 12); 4121 if ((skb->dst) && (skb->dst->neighbour)) { 4122 *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = 4123 *((u32 *) skb->dst->neighbour->primary_key); 4124 } else { 4125 /* fill in destination address used in ip header */ 4126 *((u32 *)(&hdr->hdr.l3.dest_addr[12])) = 4127 ip_hdr(skb)->daddr; 4128 } 4129 } else if (ipv == 6) { /* IPv6 or passthru */ 4130 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type); 4131 if ((skb->dst) && (skb->dst->neighbour)) { 4132 memcpy(hdr->hdr.l3.dest_addr, 4133 skb->dst->neighbour->primary_key, 16); 4134 } else { 4135 /* fill in destination address used in ip header */ 4136 memcpy(hdr->hdr.l3.dest_addr, 4137 &ipv6_hdr(skb)->daddr, 16); 4138 } 4139 } else { /* passthrough */ 4140 if((skb->dev->type == ARPHRD_IEEE802_TR) && 4141 !memcmp(skb->data + sizeof(struct qeth_hdr) + 4142 sizeof(__u16), skb->dev->broadcast, 6)) { 4143 hdr->hdr.l3.flags = QETH_CAST_BROADCAST | 4144 QETH_HDR_PASSTHRU; 4145 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr), 4146 skb->dev->broadcast, 6)) { /* broadcast? */ 4147 hdr->hdr.l3.flags = QETH_CAST_BROADCAST | 4148 QETH_HDR_PASSTHRU; 4149 } else { 4150 hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ? 4151 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU : 4152 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU; 4153 } 4154 } 4155} 4156 4157static void 4158__qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer, 4159 int is_tso, int *next_element_to_fill) 4160{ 4161 int length = skb->len; 4162 int length_here; 4163 int element; 4164 char *data; 4165 int first_lap ; 4166 4167 element = *next_element_to_fill; 4168 data = skb->data; 4169 first_lap = (is_tso == 0 ? 1 : 0); 4170 4171 while (length > 0) { 4172 /* length_here is the remaining amount of data in this page */ 4173 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); 4174 if (length < length_here) 4175 length_here = length; 4176 4177 buffer->element[element].addr = data; 4178 buffer->element[element].length = length_here; 4179 length -= length_here; 4180 if (!length) { 4181 if (first_lap) 4182 buffer->element[element].flags = 0; 4183 else 4184 buffer->element[element].flags = 4185 SBAL_FLAGS_LAST_FRAG; 4186 } else { 4187 if (first_lap) 4188 buffer->element[element].flags = 4189 SBAL_FLAGS_FIRST_FRAG; 4190 else 4191 buffer->element[element].flags = 4192 SBAL_FLAGS_MIDDLE_FRAG; 4193 } 4194 data += length_here; 4195 element++; 4196 first_lap = 0; 4197 } 4198 *next_element_to_fill = element; 4199} 4200 4201static int 4202qeth_fill_buffer(struct qeth_qdio_out_q *queue, 4203 struct qeth_qdio_out_buffer *buf, 4204 struct sk_buff *skb) 4205{ 4206 struct qdio_buffer *buffer; 4207 struct qeth_hdr_tso *hdr; 4208 int flush_cnt = 0, hdr_len, large_send = 0; 4209 4210 QETH_DBF_TEXT(trace, 6, "qdfillbf"); 4211 4212 buffer = buf->buffer; 4213 atomic_inc(&skb->users); 4214 skb_queue_tail(&buf->skb_list, skb); 4215 4216 hdr = (struct qeth_hdr_tso *) skb->data; 4217 /*check first on TSO ....*/ 4218 if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) { 4219 int element = buf->next_element_to_fill; 4220 4221 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len; 4222 /*fill first buffer entry only with header information */ 4223 buffer->element[element].addr = skb->data; 4224 buffer->element[element].length = hdr_len; 4225 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; 4226 buf->next_element_to_fill++; 4227 skb->data += hdr_len; 4228 skb->len -= hdr_len; 4229 large_send = 1; 4230 } 4231 if (skb_shinfo(skb)->nr_frags == 0) 4232 __qeth_fill_buffer(skb, buffer, large_send, 4233 (int *)&buf->next_element_to_fill); 4234 else 4235 __qeth_fill_buffer_frag(skb, buffer, large_send, 4236 (int *)&buf->next_element_to_fill); 4237 4238 if (!queue->do_pack) { 4239 QETH_DBF_TEXT(trace, 6, "fillbfnp"); 4240 /* set state to PRIMED -> will be flushed */ 4241 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); 4242 flush_cnt = 1; 4243 } else { 4244 QETH_DBF_TEXT(trace, 6, "fillbfpa"); 4245 if (queue->card->options.performance_stats) 4246 queue->card->perf_stats.skbs_sent_pack++; 4247 if (buf->next_element_to_fill >= 4248 QETH_MAX_BUFFER_ELEMENTS(queue->card)) { 4249 /* 4250 * packed buffer if full -> set state PRIMED 4251 * -> will be flushed 4252 */ 4253 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); 4254 flush_cnt = 1; 4255 } 4256 } 4257 return flush_cnt; 4258} 4259 4260static int 4261qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue, 4262 struct sk_buff *skb, struct qeth_hdr *hdr, 4263 int elements_needed, 4264 struct qeth_eddp_context *ctx) 4265{ 4266 struct qeth_qdio_out_buffer *buffer; 4267 int buffers_needed = 0; 4268 int flush_cnt = 0; 4269 int index; 4270 4271 QETH_DBF_TEXT(trace, 6, "dosndpfa"); 4272 4273 /* spin until we get the queue ... */ 4274 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, 4275 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); 4276 /* ... now we've got the queue */ 4277 index = queue->next_buf_to_fill; 4278 buffer = &queue->bufs[queue->next_buf_to_fill]; 4279 /* 4280 * check if buffer is empty to make sure that we do not 'overtake' 4281 * ourselves and try to fill a buffer that is already primed 4282 */ 4283 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) 4284 goto out; 4285 if (ctx == NULL) 4286 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % 4287 QDIO_MAX_BUFFERS_PER_Q; 4288 else { 4289 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx); 4290 if (buffers_needed < 0) 4291 goto out; 4292 queue->next_buf_to_fill = 4293 (queue->next_buf_to_fill + buffers_needed) % 4294 QDIO_MAX_BUFFERS_PER_Q; 4295 } 4296 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 4297 if (ctx == NULL) { 4298 qeth_fill_buffer(queue, buffer, skb); 4299 qeth_flush_buffers(queue, 0, index, 1); 4300 } else { 4301 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index); 4302 WARN_ON(buffers_needed != flush_cnt); 4303 qeth_flush_buffers(queue, 0, index, flush_cnt); 4304 } 4305 return 0; 4306out: 4307 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 4308 return -EBUSY; 4309} 4310 4311static int 4312qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 4313 struct sk_buff *skb, struct qeth_hdr *hdr, 4314 int elements_needed, struct qeth_eddp_context *ctx) 4315{ 4316 struct qeth_qdio_out_buffer *buffer; 4317 int start_index; 4318 int flush_count = 0; 4319 int do_pack = 0; 4320 int tmp; 4321 int rc = 0; 4322 4323 QETH_DBF_TEXT(trace, 6, "dosndpkt"); 4324 4325 /* spin until we get the queue ... */ 4326 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, 4327 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); 4328 start_index = queue->next_buf_to_fill; 4329 buffer = &queue->bufs[queue->next_buf_to_fill]; 4330 /* 4331 * check if buffer is empty to make sure that we do not 'overtake' 4332 * ourselves and try to fill a buffer that is already primed 4333 */ 4334 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { 4335 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 4336 return -EBUSY; 4337 } 4338 /* check if we need to switch packing state of this queue */ 4339 qeth_switch_to_packing_if_needed(queue); 4340 if (queue->do_pack){ 4341 do_pack = 1; 4342 if (ctx == NULL) { 4343 /* does packet fit in current buffer? */ 4344 if((QETH_MAX_BUFFER_ELEMENTS(card) - 4345 buffer->next_element_to_fill) < elements_needed){ 4346 /* ... no -> set state PRIMED */ 4347 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED); 4348 flush_count++; 4349 queue->next_buf_to_fill = 4350 (queue->next_buf_to_fill + 1) % 4351 QDIO_MAX_BUFFERS_PER_Q; 4352 buffer = &queue->bufs[queue->next_buf_to_fill]; 4353 /* we did a step forward, so check buffer state 4354 * again */ 4355 if (atomic_read(&buffer->state) != 4356 QETH_QDIO_BUF_EMPTY){ 4357 qeth_flush_buffers(queue, 0, start_index, flush_count); 4358 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 4359 return -EBUSY; 4360 } 4361 } 4362 } else { 4363 /* check if we have enough elements (including following 4364 * free buffers) to handle eddp context */ 4365 if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){ 4366 printk("eddp tx_dropped 1\n"); 4367 rc = -EBUSY; 4368 goto out; 4369 } 4370 } 4371 } 4372 if (ctx == NULL) 4373 tmp = qeth_fill_buffer(queue, buffer, skb); 4374 else { 4375 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill); 4376 if (tmp < 0) { 4377 printk("eddp tx_dropped 2\n"); 4378 rc = - EBUSY; 4379 goto out; 4380 } 4381 } 4382 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % 4383 QDIO_MAX_BUFFERS_PER_Q; 4384 flush_count += tmp; 4385out: 4386 if (flush_count) 4387 qeth_flush_buffers(queue, 0, start_index, flush_count); 4388 else if (!atomic_read(&queue->set_pci_flags_count)) 4389 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); 4390 /* 4391 * queue->state will go from LOCKED -> UNLOCKED or from 4392 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us 4393 * (switch packing state or flush buffer to get another pci flag out). 4394 * In that case we will enter this loop 4395 */ 4396 while (atomic_dec_return(&queue->state)){ 4397 flush_count = 0; 4398 start_index = queue->next_buf_to_fill; 4399 /* check if we can go back to non-packing state */ 4400 flush_count += qeth_switch_to_nonpacking_if_needed(queue); 4401 /* 4402 * check if we need to flush a packing buffer to get a pci 4403 * flag out on the queue 4404 */ 4405 if (!flush_count && !atomic_read(&queue->set_pci_flags_count)) 4406 flush_count += qeth_flush_buffers_on_no_pci(queue); 4407 if (flush_count) 4408 qeth_flush_buffers(queue, 0, start_index, flush_count); 4409 } 4410 /* at this point the queue is UNLOCKED again */ 4411 if (queue->card->options.performance_stats && do_pack) 4412 queue->card->perf_stats.bufs_sent_pack += flush_count; 4413 4414 return rc; 4415} 4416 4417static int 4418qeth_get_elements_no(struct qeth_card *card, void *hdr, 4419 struct sk_buff *skb, int elems) 4420{ 4421 int elements_needed = 0; 4422 4423 if (skb_shinfo(skb)->nr_frags > 0) 4424 elements_needed = (skb_shinfo(skb)->nr_frags + 1); 4425 if (elements_needed == 0) 4426 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) 4427 + skb->len) >> PAGE_SHIFT); 4428 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){ 4429 PRINT_ERR("Invalid size of IP packet " 4430 "(Number=%d / Length=%d). Discarded.\n", 4431 (elements_needed+elems), skb->len); 4432 return 0; 4433 } 4434 return elements_needed; 4435} 4436 4437 4438static int 4439qeth_send_packet(struct qeth_card *card, struct sk_buff *skb) 4440{ 4441 int ipv = 0; 4442 int cast_type; 4443 struct qeth_qdio_out_q *queue; 4444 struct qeth_hdr *hdr = NULL; 4445 int elements_needed = 0; 4446 enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO; 4447 struct qeth_eddp_context *ctx = NULL; 4448 int tx_bytes = skb->len; 4449 unsigned short nr_frags = skb_shinfo(skb)->nr_frags; 4450 unsigned short tso_size = skb_shinfo(skb)->gso_size; 4451 struct sk_buff *new_skb, *new_skb2; 4452 int rc; 4453 4454 QETH_DBF_TEXT(trace, 6, "sendpkt"); 4455 4456 new_skb = skb; 4457 if ((card->info.type == QETH_CARD_TYPE_OSN) && 4458 (skb->protocol == htons(ETH_P_IPV6))) 4459 return -EPERM; 4460 cast_type = qeth_get_cast_type(card, skb); 4461 if ((cast_type == RTN_BROADCAST) && 4462 (card->info.broadcast_capable == 0)) 4463 return -EPERM; 4464 queue = card->qdio.out_qs 4465 [qeth_get_priority_queue(card, skb, ipv, cast_type)]; 4466 if (!card->options.layer2) { 4467 ipv = qeth_get_ip_version(skb); 4468 if ((card->dev->hard_header == qeth_fake_header) && ipv) { 4469 new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC); 4470 if (!new_skb) 4471 return -ENOMEM; 4472 if(card->dev->type == ARPHRD_IEEE802_TR){ 4473 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR); 4474 } else { 4475 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH); 4476 } 4477 } 4478 } 4479 if (skb_is_gso(skb)) 4480 large_send = card->options.large_send; 4481 /* check on OSN device*/ 4482 if (card->info.type == QETH_CARD_TYPE_OSN) 4483 hdr = (struct qeth_hdr *)new_skb->data; 4484 /*are we able to do TSO ? */ 4485 if ((large_send == QETH_LARGE_SEND_TSO) && 4486 (cast_type == RTN_UNSPEC)) { 4487 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type); 4488 if (rc) { 4489 __qeth_free_new_skb(skb, new_skb); 4490 return rc; 4491 } 4492 elements_needed++; 4493 } else if (card->info.type != QETH_CARD_TYPE_OSN) { 4494 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv); 4495 if (!new_skb2) { 4496 __qeth_free_new_skb(skb, new_skb); 4497 return -EINVAL; 4498 } 4499 if (new_skb != skb) 4500 __qeth_free_new_skb(new_skb2, new_skb); 4501 new_skb = new_skb2; 4502 qeth_fill_header(card, hdr, new_skb, ipv, cast_type); 4503 } 4504 if (large_send == QETH_LARGE_SEND_EDDP) { 4505 ctx = qeth_eddp_create_context(card, new_skb, hdr, 4506 skb->sk->sk_protocol); 4507 if (ctx == NULL) { 4508 __qeth_free_new_skb(skb, new_skb); 4509 PRINT_WARN("could not create eddp context\n"); 4510 return -EINVAL; 4511 } 4512 } else { 4513 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb, 4514 elements_needed); 4515 if (!elems) { 4516 __qeth_free_new_skb(skb, new_skb); 4517 return -EINVAL; 4518 } 4519 elements_needed += elems; 4520 } 4521 4522 if (card->info.type != QETH_CARD_TYPE_IQD) 4523 rc = qeth_do_send_packet(card, queue, new_skb, hdr, 4524 elements_needed, ctx); 4525 else 4526 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr, 4527 elements_needed, ctx); 4528 if (!rc) { 4529 card->stats.tx_packets++; 4530 card->stats.tx_bytes += tx_bytes; 4531 if (new_skb != skb) 4532 dev_kfree_skb_any(skb); 4533 if (card->options.performance_stats) { 4534 if (tso_size && 4535 !(large_send == QETH_LARGE_SEND_NO)) { 4536 card->perf_stats.large_send_bytes += tx_bytes; 4537 card->perf_stats.large_send_cnt++; 4538 } 4539 if (nr_frags > 0) { 4540 card->perf_stats.sg_skbs_sent++; 4541 /* nr_frags + skb->data */ 4542 card->perf_stats.sg_frags_sent += 4543 nr_frags + 1; 4544 } 4545 } 4546 } else { 4547 card->stats.tx_dropped++; 4548 __qeth_free_new_skb(skb, new_skb); 4549 } 4550 if (ctx != NULL) { 4551 /* drop creator's reference */ 4552 qeth_eddp_put_context(ctx); 4553 /* free skb; it's not referenced by a buffer */ 4554 if (!rc) 4555 dev_kfree_skb_any(new_skb); 4556 } 4557 return rc; 4558} 4559 4560static int 4561qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) 4562{ 4563 struct qeth_card *card = (struct qeth_card *) dev->priv; 4564 int rc = 0; 4565 4566 switch(regnum){ 4567 case MII_BMCR: /* Basic mode control register */ 4568 rc = BMCR_FULLDPLX; 4569 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&& 4570 (card->info.link_type != QETH_LINK_TYPE_OSN) && 4571 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) 4572 rc |= BMCR_SPEED100; 4573 break; 4574 case MII_BMSR: /* Basic mode status register */ 4575 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | 4576 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | 4577 BMSR_100BASE4; 4578 break; 4579 case MII_PHYSID1: /* PHYS ID 1 */ 4580 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | 4581 dev->dev_addr[2]; 4582 rc = (rc >> 5) & 0xFFFF; 4583 break; 4584 case MII_PHYSID2: /* PHYS ID 2 */ 4585 rc = (dev->dev_addr[2] << 10) & 0xFFFF; 4586 break; 4587 case MII_ADVERTISE: /* Advertisement control reg */ 4588 rc = ADVERTISE_ALL; 4589 break; 4590 case MII_LPA: /* Link partner ability reg */ 4591 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | 4592 LPA_100BASE4 | LPA_LPACK; 4593 break; 4594 case MII_EXPANSION: /* Expansion register */ 4595 break; 4596 case MII_DCOUNTER: /* disconnect counter */ 4597 break; 4598 case MII_FCSCOUNTER: /* false carrier counter */ 4599 break; 4600 case MII_NWAYTEST: /* N-way auto-neg test register */ 4601 break; 4602 case MII_RERRCOUNTER: /* rx error counter */ 4603 rc = card->stats.rx_errors; 4604 break; 4605 case MII_SREVISION: /* silicon revision */ 4606 break; 4607 case MII_RESV1: /* reserved 1 */ 4608 break; 4609 case MII_LBRERROR: /* loopback, rx, bypass error */ 4610 break; 4611 case MII_PHYADDR: /* physical address */ 4612 break; 4613 case MII_RESV2: /* reserved 2 */ 4614 break; 4615 case MII_TPISTATUS: /* TPI status for 10mbps */ 4616 break; 4617 case MII_NCONFIG: /* network interface config */ 4618 break; 4619 default: 4620 break; 4621 } 4622 return rc; 4623} 4624 4625 4626static const char * 4627qeth_arp_get_error_cause(int *rc) 4628{ 4629 switch (*rc) { 4630 case QETH_IPA_ARP_RC_FAILED: 4631 *rc = -EIO; 4632 return "operation failed"; 4633 case QETH_IPA_ARP_RC_NOTSUPP: 4634 *rc = -EOPNOTSUPP; 4635 return "operation not supported"; 4636 case QETH_IPA_ARP_RC_OUT_OF_RANGE: 4637 *rc = -EINVAL; 4638 return "argument out of range"; 4639 case QETH_IPA_ARP_RC_Q_NOTSUPP: 4640 *rc = -EOPNOTSUPP; 4641 return "query operation not supported"; 4642 case QETH_IPA_ARP_RC_Q_NO_DATA: 4643 *rc = -ENOENT; 4644 return "no query data available"; 4645 default: 4646 return "unknown error"; 4647 } 4648} 4649 4650static int 4651qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs, 4652 __u16, long); 4653 4654static int 4655qeth_arp_set_no_entries(struct qeth_card *card, int no_entries) 4656{ 4657 int tmp; 4658 int rc; 4659 4660 QETH_DBF_TEXT(trace,3,"arpstnoe"); 4661 4662 /* 4663 * currently GuestLAN only supports the ARP assist function 4664 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES; 4665 * thus we say EOPNOTSUPP for this ARP function 4666 */ 4667 if (card->info.guestlan) 4668 return -EOPNOTSUPP; 4669 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { 4670 PRINT_WARN("ARP processing not supported " 4671 "on %s!\n", QETH_CARD_IFNAME(card)); 4672 return -EOPNOTSUPP; 4673 } 4674 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING, 4675 IPA_CMD_ASS_ARP_SET_NO_ENTRIES, 4676 no_entries); 4677 if (rc) { 4678 tmp = rc; 4679 PRINT_WARN("Could not set number of ARP entries on %s: " 4680 "%s (0x%x/%d)\n", 4681 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc), 4682 tmp, tmp); 4683 } 4684 return rc; 4685} 4686 4687static void 4688qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo, 4689 struct qeth_arp_query_data *qdata, 4690 int entry_size, int uentry_size) 4691{ 4692 char *entry_ptr; 4693 char *uentry_ptr; 4694 int i; 4695 4696 entry_ptr = (char *)&qdata->data; 4697 uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset); 4698 for (i = 0; i < qdata->no_entries; ++i){ 4699 /* strip off 32 bytes "media specific information" */ 4700 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32); 4701 entry_ptr += entry_size; 4702 uentry_ptr += uentry_size; 4703 } 4704} 4705 4706static int 4707qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply, 4708 unsigned long data) 4709{ 4710 struct qeth_ipa_cmd *cmd; 4711 struct qeth_arp_query_data *qdata; 4712 struct qeth_arp_query_info *qinfo; 4713 int entry_size; 4714 int uentry_size; 4715 int i; 4716 4717 QETH_DBF_TEXT(trace,4,"arpquecb"); 4718 4719 qinfo = (struct qeth_arp_query_info *) reply->param; 4720 cmd = (struct qeth_ipa_cmd *) data; 4721 if (cmd->hdr.return_code) { 4722 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code); 4723 return 0; 4724 } 4725 if (cmd->data.setassparms.hdr.return_code) { 4726 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 4727 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code); 4728 return 0; 4729 } 4730 qdata = &cmd->data.setassparms.data.query_arp; 4731 switch(qdata->reply_bits){ 4732 case 5: 4733 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5); 4734 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) 4735 uentry_size = sizeof(struct qeth_arp_qi_entry5_short); 4736 break; 4737 case 7: 4738 /* fall through to default */ 4739 default: 4740 /* tr is the same as eth -> entry7 */ 4741 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7); 4742 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) 4743 uentry_size = sizeof(struct qeth_arp_qi_entry7_short); 4744 break; 4745 } 4746 /* check if there is enough room in userspace */ 4747 if ((qinfo->udata_len - qinfo->udata_offset) < 4748 qdata->no_entries * uentry_size){ 4749 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM); 4750 cmd->hdr.return_code = -ENOMEM; 4751 PRINT_WARN("query ARP user space buffer is too small for " 4752 "the returned number of ARP entries. " 4753 "Aborting query!\n"); 4754 goto out_error; 4755 } 4756 QETH_DBF_TEXT_(trace, 4, "anore%i", 4757 cmd->data.setassparms.hdr.number_of_replies); 4758 QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no); 4759 QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries); 4760 4761 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) { 4762 /* strip off "media specific information" */ 4763 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size, 4764 uentry_size); 4765 } else 4766 /*copy entries to user buffer*/ 4767 memcpy(qinfo->udata + qinfo->udata_offset, 4768 (char *)&qdata->data, qdata->no_entries*uentry_size); 4769 4770 qinfo->no_entries += qdata->no_entries; 4771 qinfo->udata_offset += (qdata->no_entries*uentry_size); 4772 /* check if all replies received ... */ 4773 if (cmd->data.setassparms.hdr.seq_no < 4774 cmd->data.setassparms.hdr.number_of_replies) 4775 return 1; 4776 memcpy(qinfo->udata, &qinfo->no_entries, 4); 4777 /* keep STRIP_ENTRIES flag so the user program can distinguish 4778 * stripped entries from normal ones */ 4779 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) 4780 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES; 4781 memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2); 4782 return 0; 4783out_error: 4784 i = 0; 4785 memcpy(qinfo->udata, &i, 4); 4786 return 0; 4787} 4788 4789static int 4790qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 4791 int len, int (*reply_cb)(struct qeth_card *, 4792 struct qeth_reply *, 4793 unsigned long), 4794 void *reply_param) 4795{ 4796 QETH_DBF_TEXT(trace,4,"sendarp"); 4797 4798 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); 4799 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), 4800 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 4801 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, 4802 reply_cb, reply_param); 4803} 4804 4805static int 4806qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 4807 int len, int (*reply_cb)(struct qeth_card *, 4808 struct qeth_reply *, 4809 unsigned long), 4810 void *reply_param) 4811{ 4812 u16 s1, s2; 4813 4814 QETH_DBF_TEXT(trace,4,"sendsnmp"); 4815 4816 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); 4817 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), 4818 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 4819 /* adjust PDU length fields in IPA_PDU_HEADER */ 4820 s1 = (u32) IPA_PDU_HEADER_SIZE + len; 4821 s2 = (u32) len; 4822 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 4823 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 4824 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 4825 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 4826 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, 4827 reply_cb, reply_param); 4828} 4829 4830static struct qeth_cmd_buffer * 4831qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs, 4832 __u16, __u16, enum qeth_prot_versions); 4833static int 4834qeth_arp_query(struct qeth_card *card, char __user *udata) 4835{ 4836 struct qeth_cmd_buffer *iob; 4837 struct qeth_arp_query_info qinfo = {0, }; 4838 int tmp; 4839 int rc; 4840 4841 QETH_DBF_TEXT(trace,3,"arpquery"); 4842 4843 if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/ 4844 IPA_ARP_PROCESSING)) { 4845 PRINT_WARN("ARP processing not supported " 4846 "on %s!\n", QETH_CARD_IFNAME(card)); 4847 return -EOPNOTSUPP; 4848 } 4849 /* get size of userspace buffer and mask_bits -> 6 bytes */ 4850 if (copy_from_user(&qinfo, udata, 6)) 4851 return -EFAULT; 4852 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))) 4853 return -ENOMEM; 4854 qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET; 4855 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, 4856 IPA_CMD_ASS_ARP_QUERY_INFO, 4857 sizeof(int),QETH_PROT_IPV4); 4858 4859 rc = qeth_send_ipa_arp_cmd(card, iob, 4860 QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN, 4861 qeth_arp_query_cb, (void *)&qinfo); 4862 if (rc) { 4863 tmp = rc; 4864 PRINT_WARN("Error while querying ARP cache on %s: %s " 4865 "(0x%x/%d)\n", 4866 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc), 4867 tmp, tmp); 4868 if (copy_to_user(udata, qinfo.udata, 4)) 4869 rc = -EFAULT; 4870 } else { 4871 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) 4872 rc = -EFAULT; 4873 } 4874 kfree(qinfo.udata); 4875 return rc; 4876} 4877 4878/** 4879 * SNMP command callback 4880 */ 4881static int 4882qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply, 4883 unsigned long sdata) 4884{ 4885 struct qeth_ipa_cmd *cmd; 4886 struct qeth_arp_query_info *qinfo; 4887 struct qeth_snmp_cmd *snmp; 4888 unsigned char *data; 4889 __u16 data_len; 4890 4891 QETH_DBF_TEXT(trace,3,"snpcmdcb"); 4892 4893 cmd = (struct qeth_ipa_cmd *) sdata; 4894 data = (unsigned char *)((char *)cmd - reply->offset); 4895 qinfo = (struct qeth_arp_query_info *) reply->param; 4896 snmp = &cmd->data.setadapterparms.data.snmp; 4897 4898 if (cmd->hdr.return_code) { 4899 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code); 4900 return 0; 4901 } 4902 if (cmd->data.setadapterparms.hdr.return_code) { 4903 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code; 4904 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code); 4905 return 0; 4906 } 4907 data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data)); 4908 if (cmd->data.setadapterparms.hdr.seq_no == 1) 4909 data_len -= (__u16)((char *)&snmp->data - (char *)cmd); 4910 else 4911 data_len -= (__u16)((char*)&snmp->request - (char *)cmd); 4912 4913 /* check if there is enough room in userspace */ 4914 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { 4915 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM); 4916 cmd->hdr.return_code = -ENOMEM; 4917 return 0; 4918 } 4919 QETH_DBF_TEXT_(trace, 4, "snore%i", 4920 cmd->data.setadapterparms.hdr.used_total); 4921 QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no); 4922 /*copy entries to user buffer*/ 4923 if (cmd->data.setadapterparms.hdr.seq_no == 1) { 4924 memcpy(qinfo->udata + qinfo->udata_offset, 4925 (char *)snmp, 4926 data_len + offsetof(struct qeth_snmp_cmd,data)); 4927 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); 4928 } else { 4929 memcpy(qinfo->udata + qinfo->udata_offset, 4930 (char *)&snmp->request, data_len); 4931 } 4932 qinfo->udata_offset += data_len; 4933 /* check if all replies received ... */ 4934 QETH_DBF_TEXT_(trace, 4, "srtot%i", 4935 cmd->data.setadapterparms.hdr.used_total); 4936 QETH_DBF_TEXT_(trace, 4, "srseq%i", 4937 cmd->data.setadapterparms.hdr.seq_no); 4938 if (cmd->data.setadapterparms.hdr.seq_no < 4939 cmd->data.setadapterparms.hdr.used_total) 4940 return 1; 4941 return 0; 4942} 4943 4944static struct qeth_cmd_buffer * 4945qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds, 4946 enum qeth_prot_versions ); 4947 4948static struct qeth_cmd_buffer * 4949qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen) 4950{ 4951 struct qeth_cmd_buffer *iob; 4952 struct qeth_ipa_cmd *cmd; 4953 4954 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS, 4955 QETH_PROT_IPV4); 4956 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 4957 cmd->data.setadapterparms.hdr.cmdlength = cmdlen; 4958 cmd->data.setadapterparms.hdr.command_code = command; 4959 cmd->data.setadapterparms.hdr.used_total = 1; 4960 cmd->data.setadapterparms.hdr.seq_no = 1; 4961 4962 return iob; 4963} 4964 4965/** 4966 * function to send SNMP commands to OSA-E card 4967 */ 4968static int 4969qeth_snmp_command(struct qeth_card *card, char __user *udata) 4970{ 4971 struct qeth_cmd_buffer *iob; 4972 struct qeth_ipa_cmd *cmd; 4973 struct qeth_snmp_ureq *ureq; 4974 int req_len; 4975 struct qeth_arp_query_info qinfo = {0, }; 4976 int rc = 0; 4977 4978 QETH_DBF_TEXT(trace,3,"snmpcmd"); 4979 4980 if (card->info.guestlan) 4981 return -EOPNOTSUPP; 4982 4983 if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) && 4984 (!card->options.layer2) ) { 4985 PRINT_WARN("SNMP Query MIBS not supported " 4986 "on %s!\n", QETH_CARD_IFNAME(card)); 4987 return -EOPNOTSUPP; 4988 } 4989 /* skip 4 bytes (data_len struct member) to get req_len */ 4990 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) 4991 return -EFAULT; 4992 ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL); 4993 if (!ureq) { 4994 QETH_DBF_TEXT(trace, 2, "snmpnome"); 4995 return -ENOMEM; 4996 } 4997 if (copy_from_user(ureq, udata, 4998 req_len+sizeof(struct qeth_snmp_ureq_hdr))){ 4999 kfree(ureq); 5000 return -EFAULT; 5001 } 5002 qinfo.udata_len = ureq->hdr.data_len; 5003 if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){ 5004 kfree(ureq); 5005 return -ENOMEM; 5006 } 5007 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); 5008 5009 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, 5010 QETH_SNMP_SETADP_CMDLENGTH + req_len); 5011 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 5012 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); 5013 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, 5014 qeth_snmp_command_cb, (void *)&qinfo); 5015 if (rc) 5016 PRINT_WARN("SNMP command failed on %s: (0x%x)\n", 5017 QETH_CARD_IFNAME(card), rc); 5018 else { 5019 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) 5020 rc = -EFAULT; 5021 } 5022 5023 kfree(ureq); 5024 kfree(qinfo.udata); 5025 return rc; 5026} 5027 5028static int 5029qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *, 5030 unsigned long); 5031 5032static int 5033qeth_default_setadapterparms_cb(struct qeth_card *card, 5034 struct qeth_reply *reply, 5035 unsigned long data); 5036static int 5037qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, 5038 __u16, long, 5039 int (*reply_cb) 5040 (struct qeth_card *, struct qeth_reply *, unsigned long), 5041 void *reply_param); 5042 5043static int 5044qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry) 5045{ 5046 struct qeth_cmd_buffer *iob; 5047 char buf[16]; 5048 int tmp; 5049 int rc; 5050 5051 QETH_DBF_TEXT(trace,3,"arpadent"); 5052 5053 /* 5054 * currently GuestLAN only supports the ARP assist function 5055 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY; 5056 * thus we say EOPNOTSUPP for this ARP function 5057 */ 5058 if (card->info.guestlan) 5059 return -EOPNOTSUPP; 5060 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { 5061 PRINT_WARN("ARP processing not supported " 5062 "on %s!\n", QETH_CARD_IFNAME(card)); 5063 return -EOPNOTSUPP; 5064 } 5065 5066 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, 5067 IPA_CMD_ASS_ARP_ADD_ENTRY, 5068 sizeof(struct qeth_arp_cache_entry), 5069 QETH_PROT_IPV4); 5070 rc = qeth_send_setassparms(card, iob, 5071 sizeof(struct qeth_arp_cache_entry), 5072 (unsigned long) entry, 5073 qeth_default_setassparms_cb, NULL); 5074 if (rc) { 5075 tmp = rc; 5076 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf); 5077 PRINT_WARN("Could not add ARP entry for address %s on %s: " 5078 "%s (0x%x/%d)\n", 5079 buf, QETH_CARD_IFNAME(card), 5080 qeth_arp_get_error_cause(&rc), tmp, tmp); 5081 } 5082 return rc; 5083} 5084 5085static int 5086qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry) 5087{ 5088 struct qeth_cmd_buffer *iob; 5089 char buf[16] = {0, }; 5090 int tmp; 5091 int rc; 5092 5093 QETH_DBF_TEXT(trace,3,"arprment"); 5094 5095 /* 5096 * currently GuestLAN only supports the ARP assist function 5097 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY; 5098 * thus we say EOPNOTSUPP for this ARP function 5099 */ 5100 if (card->info.guestlan) 5101 return -EOPNOTSUPP; 5102 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { 5103 PRINT_WARN("ARP processing not supported " 5104 "on %s!\n", QETH_CARD_IFNAME(card)); 5105 return -EOPNOTSUPP; 5106 } 5107 memcpy(buf, entry, 12); 5108 iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING, 5109 IPA_CMD_ASS_ARP_REMOVE_ENTRY, 5110 12, 5111 QETH_PROT_IPV4); 5112 rc = qeth_send_setassparms(card, iob, 5113 12, (unsigned long)buf, 5114 qeth_default_setassparms_cb, NULL); 5115 if (rc) { 5116 tmp = rc; 5117 memset(buf, 0, 16); 5118 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf); 5119 PRINT_WARN("Could not delete ARP entry for address %s on %s: " 5120 "%s (0x%x/%d)\n", 5121 buf, QETH_CARD_IFNAME(card), 5122 qeth_arp_get_error_cause(&rc), tmp, tmp); 5123 } 5124 return rc; 5125} 5126 5127static int 5128qeth_arp_flush_cache(struct qeth_card *card) 5129{ 5130 int rc; 5131 int tmp; 5132 5133 QETH_DBF_TEXT(trace,3,"arpflush"); 5134 5135 /* 5136 * currently GuestLAN only supports the ARP assist function 5137 * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE; 5138 * thus we say EOPNOTSUPP for this ARP function 5139 */ 5140 if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD)) 5141 return -EOPNOTSUPP; 5142 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { 5143 PRINT_WARN("ARP processing not supported " 5144 "on %s!\n", QETH_CARD_IFNAME(card)); 5145 return -EOPNOTSUPP; 5146 } 5147 rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING, 5148 IPA_CMD_ASS_ARP_FLUSH_CACHE, 0); 5149 if (rc){ 5150 tmp = rc; 5151 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n", 5152 QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc), 5153 tmp, tmp); 5154 } 5155 return rc; 5156} 5157 5158static int 5159qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 5160{ 5161 struct qeth_card *card = (struct qeth_card *)dev->priv; 5162 struct qeth_arp_cache_entry arp_entry; 5163 struct mii_ioctl_data *mii_data; 5164 int rc = 0; 5165 5166 if (!card) 5167 return -ENODEV; 5168 5169 if ((card->state != CARD_STATE_UP) && 5170 (card->state != CARD_STATE_SOFTSETUP)) 5171 return -ENODEV; 5172 5173 if (card->info.type == QETH_CARD_TYPE_OSN) 5174 return -EPERM; 5175 5176 switch (cmd){ 5177 case SIOC_QETH_ARP_SET_NO_ENTRIES: 5178 if ( !capable(CAP_NET_ADMIN) || 5179 (card->options.layer2) ) { 5180 rc = -EPERM; 5181 break; 5182 } 5183 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue); 5184 break; 5185 case SIOC_QETH_ARP_QUERY_INFO: 5186 if ( !capable(CAP_NET_ADMIN) || 5187 (card->options.layer2) ) { 5188 rc = -EPERM; 5189 break; 5190 } 5191 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data); 5192 break; 5193 case SIOC_QETH_ARP_ADD_ENTRY: 5194 if ( !capable(CAP_NET_ADMIN) || 5195 (card->options.layer2) ) { 5196 rc = -EPERM; 5197 break; 5198 } 5199 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data, 5200 sizeof(struct qeth_arp_cache_entry))) 5201 rc = -EFAULT; 5202 else 5203 rc = qeth_arp_add_entry(card, &arp_entry); 5204 break; 5205 case SIOC_QETH_ARP_REMOVE_ENTRY: 5206 if ( !capable(CAP_NET_ADMIN) || 5207 (card->options.layer2) ) { 5208 rc = -EPERM; 5209 break; 5210 } 5211 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data, 5212 sizeof(struct qeth_arp_cache_entry))) 5213 rc = -EFAULT; 5214 else 5215 rc = qeth_arp_remove_entry(card, &arp_entry); 5216 break; 5217 case SIOC_QETH_ARP_FLUSH_CACHE: 5218 if ( !capable(CAP_NET_ADMIN) || 5219 (card->options.layer2) ) { 5220 rc = -EPERM; 5221 break; 5222 } 5223 rc = qeth_arp_flush_cache(card); 5224 break; 5225 case SIOC_QETH_ADP_SET_SNMP_CONTROL: 5226 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); 5227 break; 5228 case SIOC_QETH_GET_CARD_TYPE: 5229 if ((card->info.type == QETH_CARD_TYPE_OSAE) && 5230 !card->info.guestlan) 5231 return 1; 5232 return 0; 5233 break; 5234 case SIOCGMIIPHY: 5235 mii_data = if_mii(rq); 5236 mii_data->phy_id = 0; 5237 break; 5238 case SIOCGMIIREG: 5239 mii_data = if_mii(rq); 5240 if (mii_data->phy_id != 0) 5241 rc = -EINVAL; 5242 else 5243 mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id, 5244 mii_data->reg_num); 5245 break; 5246 default: 5247 rc = -EOPNOTSUPP; 5248 } 5249 if (rc) 5250 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc); 5251 return rc; 5252} 5253 5254static struct net_device_stats * 5255qeth_get_stats(struct net_device *dev) 5256{ 5257 struct qeth_card *card; 5258 5259 card = (struct qeth_card *) (dev->priv); 5260 5261 QETH_DBF_TEXT(trace,5,"getstat"); 5262 5263 return &card->stats; 5264} 5265 5266static int 5267qeth_change_mtu(struct net_device *dev, int new_mtu) 5268{ 5269 struct qeth_card *card; 5270 char dbf_text[15]; 5271 5272 card = (struct qeth_card *) (dev->priv); 5273 5274 QETH_DBF_TEXT(trace,4,"chgmtu"); 5275 sprintf(dbf_text, "%8x", new_mtu); 5276 QETH_DBF_TEXT(trace,4,dbf_text); 5277 5278 if (new_mtu < 64) 5279 return -EINVAL; 5280 if (new_mtu > 65535) 5281 return -EINVAL; 5282 if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) && 5283 (!qeth_mtu_is_valid(card, new_mtu))) 5284 return -EINVAL; 5285 dev->mtu = new_mtu; 5286 return 0; 5287} 5288 5289#ifdef CONFIG_QETH_VLAN 5290static void 5291qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) 5292{ 5293 struct qeth_card *card; 5294 unsigned long flags; 5295 5296 QETH_DBF_TEXT(trace,4,"vlanreg"); 5297 5298 card = (struct qeth_card *) dev->priv; 5299 spin_lock_irqsave(&card->vlanlock, flags); 5300 card->vlangrp = grp; 5301 spin_unlock_irqrestore(&card->vlanlock, flags); 5302} 5303 5304static void 5305qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf, 5306 unsigned short vid) 5307{ 5308 int i; 5309 struct sk_buff *skb; 5310 struct sk_buff_head tmp_list; 5311 5312 skb_queue_head_init(&tmp_list); 5313 lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key); 5314 for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){ 5315 while ((skb = skb_dequeue(&buf->skb_list))){ 5316 if (vlan_tx_tag_present(skb) && 5317 (vlan_tx_tag_get(skb) == vid)) { 5318 atomic_dec(&skb->users); 5319 dev_kfree_skb(skb); 5320 } else 5321 skb_queue_tail(&tmp_list, skb); 5322 } 5323 } 5324 while ((skb = skb_dequeue(&tmp_list))) 5325 skb_queue_tail(&buf->skb_list, skb); 5326} 5327 5328static void 5329qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid) 5330{ 5331 int i, j; 5332 5333 QETH_DBF_TEXT(trace, 4, "frvlskbs"); 5334 for (i = 0; i < card->qdio.no_out_queues; ++i){ 5335 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) 5336 qeth_free_vlan_buffer(card, &card->qdio. 5337 out_qs[i]->bufs[j], vid); 5338 } 5339} 5340 5341static void 5342qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid) 5343{ 5344 struct in_device *in_dev; 5345 struct in_ifaddr *ifa; 5346 struct qeth_ipaddr *addr; 5347 5348 QETH_DBF_TEXT(trace, 4, "frvaddr4"); 5349 5350 rcu_read_lock(); 5351 in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid)); 5352 if (!in_dev) 5353 goto out; 5354 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { 5355 addr = qeth_get_addr_buffer(QETH_PROT_IPV4); 5356 if (addr){ 5357 addr->u.a4.addr = ifa->ifa_address; 5358 addr->u.a4.mask = ifa->ifa_mask; 5359 addr->type = QETH_IP_TYPE_NORMAL; 5360 if (!qeth_delete_ip(card, addr)) 5361 kfree(addr); 5362 } 5363 } 5364out: 5365 rcu_read_unlock(); 5366} 5367 5368static void 5369qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid) 5370{ 5371#ifdef CONFIG_QETH_IPV6 5372 struct inet6_dev *in6_dev; 5373 struct inet6_ifaddr *ifa; 5374 struct qeth_ipaddr *addr; 5375 5376 QETH_DBF_TEXT(trace, 4, "frvaddr6"); 5377 5378 in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid)); 5379 if (!in6_dev) 5380 return; 5381 for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){ 5382 addr = qeth_get_addr_buffer(QETH_PROT_IPV6); 5383 if (addr){ 5384 memcpy(&addr->u.a6.addr, &ifa->addr, 5385 sizeof(struct in6_addr)); 5386 addr->u.a6.pfxlen = ifa->prefix_len; 5387 addr->type = QETH_IP_TYPE_NORMAL; 5388 if (!qeth_delete_ip(card, addr)) 5389 kfree(addr); 5390 } 5391 } 5392 in6_dev_put(in6_dev); 5393#endif /* CONFIG_QETH_IPV6 */ 5394} 5395 5396static void 5397qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid) 5398{ 5399 if (card->options.layer2 || !card->vlangrp) 5400 return; 5401 qeth_free_vlan_addresses4(card, vid); 5402 qeth_free_vlan_addresses6(card, vid); 5403} 5404 5405static int 5406qeth_layer2_send_setdelvlan_cb(struct qeth_card *card, 5407 struct qeth_reply *reply, 5408 unsigned long data) 5409{ 5410 struct qeth_ipa_cmd *cmd; 5411 5412 QETH_DBF_TEXT(trace, 2, "L2sdvcb"); 5413 cmd = (struct qeth_ipa_cmd *) data; 5414 if (cmd->hdr.return_code) { 5415 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. " 5416 "Continuing\n",cmd->data.setdelvlan.vlan_id, 5417 QETH_CARD_IFNAME(card), cmd->hdr.return_code); 5418 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command); 5419 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card)); 5420 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code); 5421 } 5422 return 0; 5423} 5424 5425static int 5426qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i, 5427 enum qeth_ipa_cmds ipacmd) 5428{ 5429 struct qeth_ipa_cmd *cmd; 5430 struct qeth_cmd_buffer *iob; 5431 5432 QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd); 5433 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 5434 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 5435 cmd->data.setdelvlan.vlan_id = i; 5436 return qeth_send_ipa_cmd(card, iob, 5437 qeth_layer2_send_setdelvlan_cb, NULL); 5438} 5439 5440static void 5441qeth_layer2_process_vlans(struct qeth_card *card, int clear) 5442{ 5443 unsigned short i; 5444 5445 QETH_DBF_TEXT(trace, 3, "L2prcvln"); 5446 5447 if (!card->vlangrp) 5448 return; 5449 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { 5450 if (vlan_group_get_device(card->vlangrp, i) == NULL) 5451 continue; 5452 if (clear) 5453 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN); 5454 else 5455 qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN); 5456 } 5457} 5458 5459/*add_vid is layer 2 used only ....*/ 5460static void 5461qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) 5462{ 5463 struct qeth_card *card; 5464 5465 QETH_DBF_TEXT_(trace, 4, "aid:%d", vid); 5466 5467 card = (struct qeth_card *) dev->priv; 5468 if (!card->options.layer2) 5469 return; 5470 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN); 5471} 5472 5473/*... kill_vid used for both modes*/ 5474static void 5475qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) 5476{ 5477 struct qeth_card *card; 5478 unsigned long flags; 5479 5480 QETH_DBF_TEXT_(trace, 4, "kid:%d", vid); 5481 5482 card = (struct qeth_card *) dev->priv; 5483 /* free all skbs for the vlan device */ 5484 qeth_free_vlan_skbs(card, vid); 5485 spin_lock_irqsave(&card->vlanlock, flags); 5486 /* unregister IP addresses of vlan device */ 5487 qeth_free_vlan_addresses(card, vid); 5488 vlan_group_set_device(card->vlangrp, vid, NULL); 5489 spin_unlock_irqrestore(&card->vlanlock, flags); 5490 if (card->options.layer2) 5491 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN); 5492 qeth_set_multicast_list(card->dev); 5493} 5494#endif 5495/** 5496 * Examine hardware response to SET_PROMISC_MODE 5497 */ 5498static int 5499qeth_setadp_promisc_mode_cb(struct qeth_card *card, 5500 struct qeth_reply *reply, 5501 unsigned long data) 5502{ 5503 struct qeth_ipa_cmd *cmd; 5504 struct qeth_ipacmd_setadpparms *setparms; 5505 5506 QETH_DBF_TEXT(trace,4,"prmadpcb"); 5507 5508 cmd = (struct qeth_ipa_cmd *) data; 5509 setparms = &(cmd->data.setadapterparms); 5510 5511 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); 5512 if (cmd->hdr.return_code) { 5513 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code); 5514 setparms->data.mode = SET_PROMISC_MODE_OFF; 5515 } 5516 card->info.promisc_mode = setparms->data.mode; 5517 return 0; 5518} 5519/* 5520 * Set promiscuous mode (on or off) (SET_PROMISC_MODE command) 5521 */ 5522static void 5523qeth_setadp_promisc_mode(struct qeth_card *card) 5524{ 5525 enum qeth_ipa_promisc_modes mode; 5526 struct net_device *dev = card->dev; 5527 struct qeth_cmd_buffer *iob; 5528 struct qeth_ipa_cmd *cmd; 5529 5530 QETH_DBF_TEXT(trace, 4, "setprom"); 5531 5532 if (((dev->flags & IFF_PROMISC) && 5533 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || 5534 (!(dev->flags & IFF_PROMISC) && 5535 (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) 5536 return; 5537 mode = SET_PROMISC_MODE_OFF; 5538 if (dev->flags & IFF_PROMISC) 5539 mode = SET_PROMISC_MODE_ON; 5540 QETH_DBF_TEXT_(trace, 4, "mode:%x", mode); 5541 5542 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, 5543 sizeof(struct qeth_ipacmd_setadpparms)); 5544 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); 5545 cmd->data.setadapterparms.data.mode = mode; 5546 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); 5547} 5548 5549/** 5550 * set multicast address on card 5551 */ 5552static void 5553qeth_set_multicast_list(struct net_device *dev) 5554{ 5555 struct qeth_card *card = (struct qeth_card *) dev->priv; 5556 5557 if (card->info.type == QETH_CARD_TYPE_OSN) 5558 return ; 5559 5560 QETH_DBF_TEXT(trace, 3, "setmulti"); 5561 qeth_delete_mc_addresses(card); 5562 if (card->options.layer2) { 5563 qeth_layer2_add_multicast(card); 5564 goto out; 5565 } 5566 qeth_add_multicast_ipv4(card); 5567#ifdef CONFIG_QETH_IPV6 5568 qeth_add_multicast_ipv6(card); 5569#endif 5570out: 5571 qeth_set_ip_addr_list(card); 5572 if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) 5573 return; 5574 qeth_setadp_promisc_mode(card); 5575} 5576 5577static int 5578qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np) 5579{ 5580 return 0; 5581} 5582 5583static void 5584qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev) 5585{ 5586 if (dev->type == ARPHRD_IEEE802_TR) 5587 ip_tr_mc_map(ipm, mac); 5588 else 5589 ip_eth_mc_map(ipm, mac); 5590} 5591 5592static struct qeth_ipaddr * 5593qeth_get_addr_buffer(enum qeth_prot_versions prot) 5594{ 5595 struct qeth_ipaddr *addr; 5596 5597 addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC); 5598 if (addr == NULL) { 5599 PRINT_WARN("Not enough memory to add address\n"); 5600 return NULL; 5601 } 5602 addr->type = QETH_IP_TYPE_NORMAL; 5603 addr->proto = prot; 5604 return addr; 5605} 5606 5607int 5608qeth_osn_assist(struct net_device *dev, 5609 void *data, 5610 int data_len) 5611{ 5612 struct qeth_cmd_buffer *iob; 5613 struct qeth_card *card; 5614 int rc; 5615 5616 QETH_DBF_TEXT(trace, 2, "osnsdmc"); 5617 if (!dev) 5618 return -ENODEV; 5619 card = (struct qeth_card *)dev->priv; 5620 if (!card) 5621 return -ENODEV; 5622 if ((card->state != CARD_STATE_UP) && 5623 (card->state != CARD_STATE_SOFTSETUP)) 5624 return -ENODEV; 5625 iob = qeth_wait_for_buffer(&card->write); 5626 memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len); 5627 rc = qeth_osn_send_ipa_cmd(card, iob, data_len); 5628 return rc; 5629} 5630 5631static struct net_device * 5632qeth_netdev_by_devno(unsigned char *read_dev_no) 5633{ 5634 struct qeth_card *card; 5635 struct net_device *ndev; 5636 unsigned char *readno; 5637 __u16 temp_dev_no, card_dev_no; 5638 char *endp; 5639 unsigned long flags; 5640 5641 ndev = NULL; 5642 memcpy(&temp_dev_no, read_dev_no, 2); 5643 read_lock_irqsave(&qeth_card_list.rwlock, flags); 5644 list_for_each_entry(card, &qeth_card_list.list, list) { 5645 readno = CARD_RDEV_ID(card); 5646 readno += (strlen(readno) - 4); 5647 card_dev_no = simple_strtoul(readno, &endp, 16); 5648 if (card_dev_no == temp_dev_no) { 5649 ndev = card->dev; 5650 break; 5651 } 5652 } 5653 read_unlock_irqrestore(&qeth_card_list.rwlock, flags); 5654 return ndev; 5655} 5656 5657int 5658qeth_osn_register(unsigned char *read_dev_no, 5659 struct net_device **dev, 5660 int (*assist_cb)(struct net_device *, void *), 5661 int (*data_cb)(struct sk_buff *)) 5662{ 5663 struct qeth_card * card; 5664 5665 QETH_DBF_TEXT(trace, 2, "osnreg"); 5666 *dev = qeth_netdev_by_devno(read_dev_no); 5667 if (*dev == NULL) 5668 return -ENODEV; 5669 card = (struct qeth_card *)(*dev)->priv; 5670 if (!card) 5671 return -ENODEV; 5672 if ((assist_cb == NULL) || (data_cb == NULL)) 5673 return -EINVAL; 5674 card->osn_info.assist_cb = assist_cb; 5675 card->osn_info.data_cb = data_cb; 5676 return 0; 5677} 5678 5679void 5680qeth_osn_deregister(struct net_device * dev) 5681{ 5682 struct qeth_card *card; 5683 5684 QETH_DBF_TEXT(trace, 2, "osndereg"); 5685 if (!dev) 5686 return; 5687 card = (struct qeth_card *)dev->priv; 5688 if (!card) 5689 return; 5690 card->osn_info.assist_cb = NULL; 5691 card->osn_info.data_cb = NULL; 5692 return; 5693} 5694 5695static void 5696qeth_delete_mc_addresses(struct qeth_card *card) 5697{ 5698 struct qeth_ipaddr *iptodo; 5699 unsigned long flags; 5700 5701 QETH_DBF_TEXT(trace,4,"delmc"); 5702 iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4); 5703 if (!iptodo) { 5704 QETH_DBF_TEXT(trace, 2, "dmcnomem"); 5705 return; 5706 } 5707 iptodo->type = QETH_IP_TYPE_DEL_ALL_MC; 5708 spin_lock_irqsave(&card->ip_lock, flags); 5709 if (!__qeth_insert_ip_todo(card, iptodo, 0)) 5710 kfree(iptodo); 5711 spin_unlock_irqrestore(&card->ip_lock, flags); 5712} 5713 5714static void 5715qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev) 5716{ 5717 struct qeth_ipaddr *ipm; 5718 struct ip_mc_list *im4; 5719 char buf[MAX_ADDR_LEN]; 5720 5721 QETH_DBF_TEXT(trace,4,"addmc"); 5722 for (im4 = in4_dev->mc_list; im4; im4 = im4->next) { 5723 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev); 5724 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4); 5725 if (!ipm) 5726 continue; 5727 ipm->u.a4.addr = im4->multiaddr; 5728 memcpy(ipm->mac,buf,OSA_ADDR_LEN); 5729 ipm->is_multicast = 1; 5730 if (!qeth_add_ip(card,ipm)) 5731 kfree(ipm); 5732 } 5733} 5734 5735static inline void 5736qeth_add_vlan_mc(struct qeth_card *card) 5737{ 5738#ifdef CONFIG_QETH_VLAN 5739 struct in_device *in_dev; 5740 struct vlan_group *vg; 5741 int i; 5742 5743 QETH_DBF_TEXT(trace,4,"addmcvl"); 5744 if ( ((card->options.layer2 == 0) && 5745 (!qeth_is_supported(card,IPA_FULL_VLAN))) || 5746 (card->vlangrp == NULL) ) 5747 return ; 5748 5749 vg = card->vlangrp; 5750 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { 5751 struct net_device *netdev = vlan_group_get_device(vg, i); 5752 if (netdev == NULL || 5753 !(netdev->flags & IFF_UP)) 5754 continue; 5755 in_dev = in_dev_get(netdev); 5756 if (!in_dev) 5757 continue; 5758 read_lock(&in_dev->mc_list_lock); 5759 qeth_add_mc(card,in_dev); 5760 read_unlock(&in_dev->mc_list_lock); 5761 in_dev_put(in_dev); 5762 } 5763#endif 5764} 5765 5766static void 5767qeth_add_multicast_ipv4(struct qeth_card *card) 5768{ 5769 struct in_device *in4_dev; 5770 5771 QETH_DBF_TEXT(trace,4,"chkmcv4"); 5772 in4_dev = in_dev_get(card->dev); 5773 if (in4_dev == NULL) 5774 return; 5775 read_lock(&in4_dev->mc_list_lock); 5776 qeth_add_mc(card, in4_dev); 5777 qeth_add_vlan_mc(card); 5778 read_unlock(&in4_dev->mc_list_lock); 5779 in_dev_put(in4_dev); 5780} 5781 5782static void 5783qeth_layer2_add_multicast(struct qeth_card *card) 5784{ 5785 struct qeth_ipaddr *ipm; 5786 struct dev_mc_list *dm; 5787 5788 QETH_DBF_TEXT(trace,4,"L2addmc"); 5789 for (dm = card->dev->mc_list; dm; dm = dm->next) { 5790 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4); 5791 if (!ipm) 5792 continue; 5793 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN); 5794 ipm->is_multicast = 1; 5795 if (!qeth_add_ip(card, ipm)) 5796 kfree(ipm); 5797 } 5798} 5799 5800#ifdef CONFIG_QETH_IPV6 5801static void 5802qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev) 5803{ 5804 struct qeth_ipaddr *ipm; 5805 struct ifmcaddr6 *im6; 5806 char buf[MAX_ADDR_LEN]; 5807 5808 QETH_DBF_TEXT(trace,4,"addmc6"); 5809 for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) { 5810 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0); 5811 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6); 5812 if (!ipm) 5813 continue; 5814 ipm->is_multicast = 1; 5815 memcpy(ipm->mac,buf,OSA_ADDR_LEN); 5816 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr, 5817 sizeof(struct in6_addr)); 5818 if (!qeth_add_ip(card,ipm)) 5819 kfree(ipm); 5820 } 5821} 5822 5823static inline void 5824qeth_add_vlan_mc6(struct qeth_card *card) 5825{ 5826#ifdef CONFIG_QETH_VLAN 5827 struct inet6_dev *in_dev; 5828 struct vlan_group *vg; 5829 int i; 5830 5831 QETH_DBF_TEXT(trace,4,"admc6vl"); 5832 if ( ((card->options.layer2 == 0) && 5833 (!qeth_is_supported(card,IPA_FULL_VLAN))) || 5834 (card->vlangrp == NULL)) 5835 return ; 5836 5837 vg = card->vlangrp; 5838 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) { 5839 struct net_device *netdev = vlan_group_get_device(vg, i); 5840 if (netdev == NULL || 5841 !(netdev->flags & IFF_UP)) 5842 continue; 5843 in_dev = in6_dev_get(netdev); 5844 if (!in_dev) 5845 continue; 5846 read_lock_bh(&in_dev->lock); 5847 qeth_add_mc6(card,in_dev); 5848 read_unlock_bh(&in_dev->lock); 5849 in6_dev_put(in_dev); 5850 } 5851#endif /* CONFIG_QETH_VLAN */ 5852} 5853 5854static void 5855qeth_add_multicast_ipv6(struct qeth_card *card) 5856{ 5857 struct inet6_dev *in6_dev; 5858 5859 QETH_DBF_TEXT(trace,4,"chkmcv6"); 5860 if (!qeth_is_supported(card, IPA_IPV6)) 5861 return ; 5862 in6_dev = in6_dev_get(card->dev); 5863 if (in6_dev == NULL) 5864 return; 5865 read_lock_bh(&in6_dev->lock); 5866 qeth_add_mc6(card, in6_dev); 5867 qeth_add_vlan_mc6(card); 5868 read_unlock_bh(&in6_dev->lock); 5869 in6_dev_put(in6_dev); 5870} 5871#endif /* CONFIG_QETH_IPV6 */ 5872 5873static int 5874qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac, 5875 enum qeth_ipa_cmds ipacmd, 5876 int (*reply_cb) (struct qeth_card *, 5877 struct qeth_reply*, 5878 unsigned long)) 5879{ 5880 struct qeth_ipa_cmd *cmd; 5881 struct qeth_cmd_buffer *iob; 5882 5883 QETH_DBF_TEXT(trace, 2, "L2sdmac"); 5884 iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4); 5885 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 5886 cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; 5887 memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); 5888 return qeth_send_ipa_cmd(card, iob, reply_cb, NULL); 5889} 5890 5891static int 5892qeth_layer2_send_setgroupmac_cb(struct qeth_card *card, 5893 struct qeth_reply *reply, 5894 unsigned long data) 5895{ 5896 struct qeth_ipa_cmd *cmd; 5897 __u8 *mac; 5898 5899 QETH_DBF_TEXT(trace, 2, "L2Sgmacb"); 5900 cmd = (struct qeth_ipa_cmd *) data; 5901 mac = &cmd->data.setdelmac.mac[0]; 5902 /* MAC already registered, needed in couple/uncouple case */ 5903 if (cmd->hdr.return_code == 0x2005) { 5904 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \ 5905 "already existing on %s \n", 5906 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], 5907 QETH_CARD_IFNAME(card)); 5908 cmd->hdr.return_code = 0; 5909 } 5910 if (cmd->hdr.return_code) 5911 PRINT_ERR("Could not set group MAC " \ 5912 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n", 5913 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], 5914 QETH_CARD_IFNAME(card),cmd->hdr.return_code); 5915 return 0; 5916} 5917 5918static int 5919qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac) 5920{ 5921 QETH_DBF_TEXT(trace, 2, "L2Sgmac"); 5922 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC, 5923 qeth_layer2_send_setgroupmac_cb); 5924} 5925 5926static int 5927qeth_layer2_send_delgroupmac_cb(struct qeth_card *card, 5928 struct qeth_reply *reply, 5929 unsigned long data) 5930{ 5931 struct qeth_ipa_cmd *cmd; 5932 __u8 *mac; 5933 5934 QETH_DBF_TEXT(trace, 2, "L2Dgmacb"); 5935 cmd = (struct qeth_ipa_cmd *) data; 5936 mac = &cmd->data.setdelmac.mac[0]; 5937 if (cmd->hdr.return_code) 5938 PRINT_ERR("Could not delete group MAC " \ 5939 "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n", 5940 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], 5941 QETH_CARD_IFNAME(card), cmd->hdr.return_code); 5942 return 0; 5943} 5944 5945static int 5946qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac) 5947{ 5948 QETH_DBF_TEXT(trace, 2, "L2Dgmac"); 5949 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC, 5950 qeth_layer2_send_delgroupmac_cb); 5951} 5952 5953static int 5954qeth_layer2_send_setmac_cb(struct qeth_card *card, 5955 struct qeth_reply *reply, 5956 unsigned long data) 5957{ 5958 struct qeth_ipa_cmd *cmd; 5959 5960 QETH_DBF_TEXT(trace, 2, "L2Smaccb"); 5961 cmd = (struct qeth_ipa_cmd *) data; 5962 if (cmd->hdr.return_code) { 5963 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code); 5964 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 5965 cmd->hdr.return_code = -EIO; 5966 } else { 5967 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; 5968 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac, 5969 OSA_ADDR_LEN); 5970 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x " 5971 "successfully registered on device %s\n", 5972 card->dev->dev_addr[0], card->dev->dev_addr[1], 5973 card->dev->dev_addr[2], card->dev->dev_addr[3], 5974 card->dev->dev_addr[4], card->dev->dev_addr[5], 5975 card->dev->name); 5976 } 5977 return 0; 5978} 5979 5980static int 5981qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac) 5982{ 5983 QETH_DBF_TEXT(trace, 2, "L2Setmac"); 5984 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC, 5985 qeth_layer2_send_setmac_cb); 5986} 5987 5988static int 5989qeth_layer2_send_delmac_cb(struct qeth_card *card, 5990 struct qeth_reply *reply, 5991 unsigned long data) 5992{ 5993 struct qeth_ipa_cmd *cmd; 5994 5995 QETH_DBF_TEXT(trace, 2, "L2Dmaccb"); 5996 cmd = (struct qeth_ipa_cmd *) data; 5997 if (cmd->hdr.return_code) { 5998 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code); 5999 cmd->hdr.return_code = -EIO; 6000 return 0; 6001 } 6002 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED; 6003 6004 return 0; 6005} 6006static int 6007qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac) 6008{ 6009 QETH_DBF_TEXT(trace, 2, "L2Delmac"); 6010 if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) 6011 return 0; 6012 return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC, 6013 qeth_layer2_send_delmac_cb); 6014} 6015 6016static int 6017qeth_layer2_set_mac_address(struct net_device *dev, void *p) 6018{ 6019 struct sockaddr *addr = p; 6020 struct qeth_card *card; 6021 int rc = 0; 6022 6023 QETH_DBF_TEXT(trace, 3, "setmac"); 6024 6025 if (qeth_verify_dev(dev) != QETH_REAL_CARD) { 6026 QETH_DBF_TEXT(trace, 3, "setmcINV"); 6027 return -EOPNOTSUPP; 6028 } 6029 card = (struct qeth_card *) dev->priv; 6030 6031 if (!card->options.layer2) { 6032 PRINT_WARN("Setting MAC address on %s is not supported " 6033 "in Layer 3 mode.\n", dev->name); 6034 QETH_DBF_TEXT(trace, 3, "setmcLY3"); 6035 return -EOPNOTSUPP; 6036 } 6037 if (card->info.type == QETH_CARD_TYPE_OSN) { 6038 PRINT_WARN("Setting MAC address on %s is not supported.\n", 6039 dev->name); 6040 QETH_DBF_TEXT(trace, 3, "setmcOSN"); 6041 return -EOPNOTSUPP; 6042 } 6043 QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card)); 6044 QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN); 6045 rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]); 6046 if (!rc) 6047 rc = qeth_layer2_send_setmac(card, addr->sa_data); 6048 return rc; 6049} 6050 6051static void 6052qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd, 6053 __u8 command, enum qeth_prot_versions prot) 6054{ 6055 memset(cmd, 0, sizeof (struct qeth_ipa_cmd)); 6056 cmd->hdr.command = command; 6057 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; 6058 cmd->hdr.seqno = card->seqno.ipa; 6059 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); 6060 cmd->hdr.rel_adapter_no = (__u8) card->info.portno; 6061 if (card->options.layer2) 6062 cmd->hdr.prim_version_no = 2; 6063 else 6064 cmd->hdr.prim_version_no = 1; 6065 cmd->hdr.param_count = 1; 6066 cmd->hdr.prot_version = prot; 6067 cmd->hdr.ipa_supported = 0; 6068 cmd->hdr.ipa_enabled = 0; 6069} 6070 6071static struct qeth_cmd_buffer * 6072qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd, 6073 enum qeth_prot_versions prot) 6074{ 6075 struct qeth_cmd_buffer *iob; 6076 struct qeth_ipa_cmd *cmd; 6077 6078 iob = qeth_wait_for_buffer(&card->write); 6079 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 6080 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot); 6081 6082 return iob; 6083} 6084 6085static int 6086qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd) 6087{ 6088 int rc; 6089 struct qeth_cmd_buffer *iob; 6090 struct qeth_ipa_cmd *cmd; 6091 6092 QETH_DBF_TEXT(trace,4,"setdelmc"); 6093 6094 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); 6095 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 6096 memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN); 6097 if (addr->proto == QETH_PROT_IPV6) 6098 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr, 6099 sizeof(struct in6_addr)); 6100 else 6101 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4); 6102 6103 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); 6104 6105 return rc; 6106} 6107static void 6108qeth_fill_netmask(u8 *netmask, unsigned int len) 6109{ 6110 int i,j; 6111 for (i=0;i<16;i++) { 6112 j=(len)-(i*8); 6113 if (j >= 8) 6114 netmask[i] = 0xff; 6115 else if (j > 0) 6116 netmask[i] = (u8)(0xFF00>>j); 6117 else 6118 netmask[i] = 0; 6119 } 6120} 6121 6122static int 6123qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr, 6124 int ipacmd, unsigned int flags) 6125{ 6126 int rc; 6127 struct qeth_cmd_buffer *iob; 6128 struct qeth_ipa_cmd *cmd; 6129 __u8 netmask[16]; 6130 6131 QETH_DBF_TEXT(trace,4,"setdelip"); 6132 QETH_DBF_TEXT_(trace,4,"flags%02X", flags); 6133 6134 iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto); 6135 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 6136 if (addr->proto == QETH_PROT_IPV6) { 6137 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr, 6138 sizeof(struct in6_addr)); 6139 qeth_fill_netmask(netmask,addr->u.a6.pfxlen); 6140 memcpy(cmd->data.setdelip6.mask, netmask, 6141 sizeof(struct in6_addr)); 6142 cmd->data.setdelip6.flags = flags; 6143 } else { 6144 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4); 6145 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4); 6146 cmd->data.setdelip4.flags = flags; 6147 } 6148 6149 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); 6150 6151 return rc; 6152} 6153 6154static int 6155qeth_layer2_register_addr_entry(struct qeth_card *card, 6156 struct qeth_ipaddr *addr) 6157{ 6158 if (!addr->is_multicast) 6159 return 0; 6160 QETH_DBF_TEXT(trace, 2, "setgmac"); 6161 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN); 6162 return qeth_layer2_send_setgroupmac(card, &addr->mac[0]); 6163} 6164 6165static int 6166qeth_layer2_deregister_addr_entry(struct qeth_card *card, 6167 struct qeth_ipaddr *addr) 6168{ 6169 if (!addr->is_multicast) 6170 return 0; 6171 QETH_DBF_TEXT(trace, 2, "delgmac"); 6172 QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN); 6173 return qeth_layer2_send_delgroupmac(card, &addr->mac[0]); 6174} 6175 6176static int 6177qeth_layer3_register_addr_entry(struct qeth_card *card, 6178 struct qeth_ipaddr *addr) 6179{ 6180 char buf[50]; 6181 int rc; 6182 int cnt = 3; 6183 6184 if (addr->proto == QETH_PROT_IPV4) { 6185 QETH_DBF_TEXT(trace, 2,"setaddr4"); 6186 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int)); 6187 } else if (addr->proto == QETH_PROT_IPV6) { 6188 QETH_DBF_TEXT(trace, 2, "setaddr6"); 6189 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8); 6190 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8); 6191 } else { 6192 QETH_DBF_TEXT(trace, 2, "setaddr?"); 6193 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr)); 6194 } 6195 do { 6196 if (addr->is_multicast) 6197 rc = qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM); 6198 else 6199 rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP, 6200 addr->set_flags); 6201 if (rc) 6202 QETH_DBF_TEXT(trace, 2, "failed"); 6203 } while ((--cnt > 0) && rc); 6204 if (rc){ 6205 QETH_DBF_TEXT(trace, 2, "FAILED"); 6206 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf); 6207 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n", 6208 buf, rc, rc); 6209 } 6210 return rc; 6211} 6212 6213static int 6214qeth_layer3_deregister_addr_entry(struct qeth_card *card, 6215 struct qeth_ipaddr *addr) 6216{ 6217 //char buf[50]; 6218 int rc; 6219 6220 if (addr->proto == QETH_PROT_IPV4) { 6221 QETH_DBF_TEXT(trace, 2,"deladdr4"); 6222 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int)); 6223 } else if (addr->proto == QETH_PROT_IPV6) { 6224 QETH_DBF_TEXT(trace, 2, "deladdr6"); 6225 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8); 6226 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8); 6227 } else { 6228 QETH_DBF_TEXT(trace, 2, "deladdr?"); 6229 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr)); 6230 } 6231 if (addr->is_multicast) 6232 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM); 6233 else 6234 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP, 6235 addr->del_flags); 6236 if (rc) { 6237 QETH_DBF_TEXT(trace, 2, "failed"); 6238 /* TODO: re-activate this warning as soon as we have a 6239 * clean mirco code 6240 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf); 6241 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n", 6242 buf, rc); 6243 */ 6244 } 6245 return rc; 6246} 6247 6248static int 6249qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr) 6250{ 6251 if (card->options.layer2) 6252 return qeth_layer2_register_addr_entry(card, addr); 6253 6254 return qeth_layer3_register_addr_entry(card, addr); 6255} 6256 6257static int 6258qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr) 6259{ 6260 if (card->options.layer2) 6261 return qeth_layer2_deregister_addr_entry(card, addr); 6262 6263 return qeth_layer3_deregister_addr_entry(card, addr); 6264} 6265 6266static u32 6267qeth_ethtool_get_tx_csum(struct net_device *dev) 6268{ 6269 /* We may need to say that we support tx csum offload if 6270 * we do EDDP or TSO. There are discussions going on to 6271 * enforce rules in the stack and in ethtool that make 6272 * SG and TSO depend on HW_CSUM. At the moment there are 6273 * no such rules.... 6274 * If we say yes here, we have to checksum outbound packets 6275 * any time. */ 6276 return 0; 6277} 6278 6279static int 6280qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data) 6281{ 6282 return -EINVAL; 6283} 6284 6285static u32 6286qeth_ethtool_get_rx_csum(struct net_device *dev) 6287{ 6288 struct qeth_card *card = (struct qeth_card *)dev->priv; 6289 6290 return (card->options.checksum_type == HW_CHECKSUMMING); 6291} 6292 6293static int 6294qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data) 6295{ 6296 struct qeth_card *card = (struct qeth_card *)dev->priv; 6297 6298 if ((card->state != CARD_STATE_DOWN) && 6299 (card->state != CARD_STATE_RECOVER)) 6300 return -EPERM; 6301 if (data) 6302 card->options.checksum_type = HW_CHECKSUMMING; 6303 else 6304 card->options.checksum_type = SW_CHECKSUMMING; 6305 return 0; 6306} 6307 6308static u32 6309qeth_ethtool_get_sg(struct net_device *dev) 6310{ 6311 struct qeth_card *card = (struct qeth_card *)dev->priv; 6312 6313 return ((card->options.large_send != QETH_LARGE_SEND_NO) && 6314 (dev->features & NETIF_F_SG)); 6315} 6316 6317static int 6318qeth_ethtool_set_sg(struct net_device *dev, u32 data) 6319{ 6320 struct qeth_card *card = (struct qeth_card *)dev->priv; 6321 6322 if (data) { 6323 if (card->options.large_send != QETH_LARGE_SEND_NO) 6324 dev->features |= NETIF_F_SG; 6325 else { 6326 dev->features &= ~NETIF_F_SG; 6327 return -EINVAL; 6328 } 6329 } else 6330 dev->features &= ~NETIF_F_SG; 6331 return 0; 6332} 6333 6334static u32 6335qeth_ethtool_get_tso(struct net_device *dev) 6336{ 6337 struct qeth_card *card = (struct qeth_card *)dev->priv; 6338 6339 return ((card->options.large_send != QETH_LARGE_SEND_NO) && 6340 (dev->features & NETIF_F_TSO)); 6341} 6342 6343static int 6344qeth_ethtool_set_tso(struct net_device *dev, u32 data) 6345{ 6346 struct qeth_card *card = (struct qeth_card *)dev->priv; 6347 6348 if (data) { 6349 if (card->options.large_send != QETH_LARGE_SEND_NO) 6350 dev->features |= NETIF_F_TSO; 6351 else { 6352 dev->features &= ~NETIF_F_TSO; 6353 return -EINVAL; 6354 } 6355 } else 6356 dev->features &= ~NETIF_F_TSO; 6357 return 0; 6358} 6359 6360static struct ethtool_ops qeth_ethtool_ops = { 6361 .get_tx_csum = qeth_ethtool_get_tx_csum, 6362 .set_tx_csum = qeth_ethtool_set_tx_csum, 6363 .get_rx_csum = qeth_ethtool_get_rx_csum, 6364 .set_rx_csum = qeth_ethtool_set_rx_csum, 6365 .get_sg = qeth_ethtool_get_sg, 6366 .set_sg = qeth_ethtool_set_sg, 6367 .get_tso = qeth_ethtool_get_tso, 6368 .set_tso = qeth_ethtool_set_tso, 6369}; 6370 6371static int 6372qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr) 6373{ 6374 struct qeth_card *card; 6375 struct ethhdr *eth; 6376 6377 card = qeth_get_card_from_dev(skb->dev); 6378 if (card->options.layer2) 6379 goto haveheader; 6380#ifdef CONFIG_QETH_IPV6 6381 /* cause of the manipulated arp constructor and the ARP 6382 flag for OSAE devices we have some nasty exceptions */ 6383 if (card->info.type == QETH_CARD_TYPE_OSAE) { 6384 if (!card->options.fake_ll) { 6385 if ((skb->pkt_type==PACKET_OUTGOING) && 6386 (skb->protocol==ETH_P_IPV6)) 6387 goto haveheader; 6388 else 6389 return 0; 6390 } else { 6391 if ((skb->pkt_type==PACKET_OUTGOING) && 6392 (skb->protocol==ETH_P_IP)) 6393 return 0; 6394 else 6395 goto haveheader; 6396 } 6397 } 6398#endif 6399 if (!card->options.fake_ll) 6400 return 0; 6401haveheader: 6402 eth = eth_hdr(skb); 6403 memcpy(haddr, eth->h_source, ETH_ALEN); 6404 return ETH_ALEN; 6405} 6406 6407static int 6408qeth_netdev_init(struct net_device *dev) 6409{ 6410 struct qeth_card *card; 6411 6412 card = (struct qeth_card *) dev->priv; 6413 6414 QETH_DBF_TEXT(trace,3,"initdev"); 6415 6416 dev->tx_timeout = &qeth_tx_timeout; 6417 dev->watchdog_timeo = QETH_TX_TIMEOUT; 6418 dev->open = qeth_open; 6419 dev->stop = qeth_stop; 6420 dev->hard_start_xmit = qeth_hard_start_xmit; 6421 dev->do_ioctl = qeth_do_ioctl; 6422 dev->get_stats = qeth_get_stats; 6423 dev->change_mtu = qeth_change_mtu; 6424 dev->neigh_setup = qeth_neigh_setup; 6425 dev->set_multicast_list = qeth_set_multicast_list; 6426#ifdef CONFIG_QETH_VLAN 6427 dev->vlan_rx_register = qeth_vlan_rx_register; 6428 dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid; 6429 dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid; 6430#endif 6431 if (qeth_get_netdev_flags(card) & IFF_NOARP) { 6432 dev->rebuild_header = NULL; 6433 dev->hard_header = NULL; 6434 dev->header_cache_update = NULL; 6435 dev->hard_header_cache = NULL; 6436 } 6437#ifdef CONFIG_QETH_IPV6 6438 /*IPv6 address autoconfiguration stuff*/ 6439 if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD)) 6440 card->dev->dev_id = card->info.unique_id & 0xffff; 6441#endif 6442 if (card->options.fake_ll && 6443 (qeth_get_netdev_flags(card) & IFF_NOARP)) 6444 dev->hard_header = qeth_fake_header; 6445 if (dev->type == ARPHRD_IEEE802_TR) 6446 dev->hard_header_parse = NULL; 6447 else 6448 dev->hard_header_parse = qeth_hard_header_parse; 6449 dev->set_mac_address = qeth_layer2_set_mac_address; 6450 dev->flags |= qeth_get_netdev_flags(card); 6451 if ((card->options.fake_broadcast) || 6452 (card->info.broadcast_capable)) 6453 dev->flags |= IFF_BROADCAST; 6454 dev->hard_header_len = 6455 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen; 6456 dev->addr_len = OSA_ADDR_LEN; 6457 dev->mtu = card->info.initial_mtu; 6458 if (card->info.type != QETH_CARD_TYPE_OSN) 6459 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops); 6460 SET_MODULE_OWNER(dev); 6461 return 0; 6462} 6463 6464static void 6465qeth_init_func_level(struct qeth_card *card) 6466{ 6467 if (card->ipato.enabled) { 6468 if (card->info.type == QETH_CARD_TYPE_IQD) 6469 card->info.func_level = 6470 QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT; 6471 else 6472 card->info.func_level = 6473 QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT; 6474 } else { 6475 if (card->info.type == QETH_CARD_TYPE_IQD) 6476 card->info.func_level = 6477 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT; 6478 else 6479 card->info.func_level = 6480 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT; 6481 } 6482} 6483 6484/** 6485 * hardsetup card, initialize MPC and QDIO stuff 6486 */ 6487static int 6488qeth_hardsetup_card(struct qeth_card *card) 6489{ 6490 int retries = 3; 6491 int rc; 6492 6493 QETH_DBF_TEXT(setup, 2, "hrdsetup"); 6494 6495retry: 6496 if (retries < 3){ 6497 PRINT_WARN("Retrying to do IDX activates.\n"); 6498 ccw_device_set_offline(CARD_DDEV(card)); 6499 ccw_device_set_offline(CARD_WDEV(card)); 6500 ccw_device_set_offline(CARD_RDEV(card)); 6501 ccw_device_set_online(CARD_RDEV(card)); 6502 ccw_device_set_online(CARD_WDEV(card)); 6503 ccw_device_set_online(CARD_DDEV(card)); 6504 } 6505 rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD); 6506 if (rc == -ERESTARTSYS) { 6507 QETH_DBF_TEXT(setup, 2, "break1"); 6508 return rc; 6509 } else if (rc) { 6510 QETH_DBF_TEXT_(setup, 2, "1err%d", rc); 6511 if (--retries < 0) 6512 goto out; 6513 else 6514 goto retry; 6515 } 6516 if ((rc = qeth_get_unitaddr(card))){ 6517 QETH_DBF_TEXT_(setup, 2, "2err%d", rc); 6518 return rc; 6519 } 6520 qeth_init_tokens(card); 6521 qeth_init_func_level(card); 6522 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); 6523 if (rc == -ERESTARTSYS) { 6524 QETH_DBF_TEXT(setup, 2, "break2"); 6525 return rc; 6526 } else if (rc) { 6527 QETH_DBF_TEXT_(setup, 2, "3err%d", rc); 6528 if (--retries < 0) 6529 goto out; 6530 else 6531 goto retry; 6532 } 6533 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); 6534 if (rc == -ERESTARTSYS) { 6535 QETH_DBF_TEXT(setup, 2, "break3"); 6536 return rc; 6537 } else if (rc) { 6538 QETH_DBF_TEXT_(setup, 2, "4err%d", rc); 6539 if (--retries < 0) 6540 goto out; 6541 else 6542 goto retry; 6543 } 6544 if ((rc = qeth_mpc_initialize(card))){ 6545 QETH_DBF_TEXT_(setup, 2, "5err%d", rc); 6546 goto out; 6547 } 6548 /*network device will be recovered*/ 6549 if (card->dev) { 6550 card->dev->hard_header = card->orig_hard_header; 6551 if (card->options.fake_ll && 6552 (qeth_get_netdev_flags(card) & IFF_NOARP)) 6553 card->dev->hard_header = qeth_fake_header; 6554 return 0; 6555 } 6556 /* at first set_online allocate netdev */ 6557 card->dev = qeth_get_netdevice(card->info.type, 6558 card->info.link_type); 6559 if (!card->dev){ 6560 qeth_qdio_clear_card(card, card->info.type != 6561 QETH_CARD_TYPE_IQD); 6562 rc = -ENODEV; 6563 QETH_DBF_TEXT_(setup, 2, "6err%d", rc); 6564 goto out; 6565 } 6566 card->dev->priv = card; 6567 card->orig_hard_header = card->dev->hard_header; 6568 card->dev->type = qeth_get_arphdr_type(card->info.type, 6569 card->info.link_type); 6570 card->dev->init = qeth_netdev_init; 6571 return 0; 6572out: 6573 PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc); 6574 return rc; 6575} 6576 6577static int 6578qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply, 6579 unsigned long data) 6580{ 6581 struct qeth_ipa_cmd *cmd; 6582 6583 QETH_DBF_TEXT(trace,4,"defadpcb"); 6584 6585 cmd = (struct qeth_ipa_cmd *) data; 6586 if (cmd->hdr.return_code == 0){ 6587 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 6588 if (cmd->hdr.prot_version == QETH_PROT_IPV4) 6589 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 6590#ifdef CONFIG_QETH_IPV6 6591 if (cmd->hdr.prot_version == QETH_PROT_IPV6) 6592 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 6593#endif 6594 } 6595 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM && 6596 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { 6597 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit; 6598 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask); 6599 } 6600 return 0; 6601} 6602 6603static int 6604qeth_default_setadapterparms_cb(struct qeth_card *card, 6605 struct qeth_reply *reply, 6606 unsigned long data) 6607{ 6608 struct qeth_ipa_cmd *cmd; 6609 6610 QETH_DBF_TEXT(trace,4,"defadpcb"); 6611 6612 cmd = (struct qeth_ipa_cmd *) data; 6613 if (cmd->hdr.return_code == 0) 6614 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code; 6615 return 0; 6616} 6617 6618 6619 6620static int 6621qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply, 6622 unsigned long data) 6623{ 6624 struct qeth_ipa_cmd *cmd; 6625 6626 QETH_DBF_TEXT(trace,3,"quyadpcb"); 6627 6628 cmd = (struct qeth_ipa_cmd *) data; 6629 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) 6630 card->info.link_type = 6631 cmd->data.setadapterparms.data.query_cmds_supp.lan_type; 6632 card->options.adp.supported_funcs = 6633 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; 6634 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); 6635} 6636 6637static int 6638qeth_query_setadapterparms(struct qeth_card *card) 6639{ 6640 int rc; 6641 struct qeth_cmd_buffer *iob; 6642 6643 QETH_DBF_TEXT(trace,3,"queryadp"); 6644 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, 6645 sizeof(struct qeth_ipacmd_setadpparms)); 6646 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); 6647 return rc; 6648} 6649 6650static int 6651qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, 6652 struct qeth_reply *reply, 6653 unsigned long data) 6654{ 6655 struct qeth_ipa_cmd *cmd; 6656 6657 QETH_DBF_TEXT(trace,4,"chgmaccb"); 6658 6659 cmd = (struct qeth_ipa_cmd *) data; 6660 if (!card->options.layer2 || 6661 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { 6662 memcpy(card->dev->dev_addr, 6663 &cmd->data.setadapterparms.data.change_addr.addr, 6664 OSA_ADDR_LEN); 6665 card->info.mac_bits |= QETH_LAYER2_MAC_READ; 6666 } 6667 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); 6668 return 0; 6669} 6670 6671static int 6672qeth_setadpparms_change_macaddr(struct qeth_card *card) 6673{ 6674 int rc; 6675 struct qeth_cmd_buffer *iob; 6676 struct qeth_ipa_cmd *cmd; 6677 6678 QETH_DBF_TEXT(trace,4,"chgmac"); 6679 6680 iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS, 6681 sizeof(struct qeth_ipacmd_setadpparms)); 6682 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 6683 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; 6684 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; 6685 memcpy(&cmd->data.setadapterparms.data.change_addr.addr, 6686 card->dev->dev_addr, OSA_ADDR_LEN); 6687 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, 6688 NULL); 6689 return rc; 6690} 6691 6692static int 6693qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode) 6694{ 6695 int rc; 6696 struct qeth_cmd_buffer *iob; 6697 struct qeth_ipa_cmd *cmd; 6698 6699 QETH_DBF_TEXT(trace,4,"adpmode"); 6700 6701 iob = qeth_get_adapter_cmd(card, command, 6702 sizeof(struct qeth_ipacmd_setadpparms)); 6703 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 6704 cmd->data.setadapterparms.data.mode = mode; 6705 rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb, 6706 NULL); 6707 return rc; 6708} 6709 6710static int 6711qeth_setadapter_hstr(struct qeth_card *card) 6712{ 6713 int rc; 6714 6715 QETH_DBF_TEXT(trace,4,"adphstr"); 6716 6717 if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) { 6718 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE, 6719 card->options.broadcast_mode); 6720 if (rc) 6721 PRINT_WARN("couldn't set broadcast mode on " 6722 "device %s: x%x\n", 6723 CARD_BUS_ID(card), rc); 6724 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS, 6725 card->options.macaddr_mode); 6726 if (rc) 6727 PRINT_WARN("couldn't set macaddr mode on " 6728 "device %s: x%x\n", CARD_BUS_ID(card), rc); 6729 return rc; 6730 } 6731 if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL) 6732 PRINT_WARN("set adapter parameters not available " 6733 "to set broadcast mode, using ALLRINGS " 6734 "on device %s:\n", CARD_BUS_ID(card)); 6735 if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL) 6736 PRINT_WARN("set adapter parameters not available " 6737 "to set macaddr mode, using NONCANONICAL " 6738 "on device %s:\n", CARD_BUS_ID(card)); 6739 return 0; 6740} 6741 6742static int 6743qeth_setadapter_parms(struct qeth_card *card) 6744{ 6745 int rc; 6746 6747 QETH_DBF_TEXT(setup, 2, "setadprm"); 6748 6749 if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){ 6750 PRINT_WARN("set adapter parameters not supported " 6751 "on device %s.\n", 6752 CARD_BUS_ID(card)); 6753 QETH_DBF_TEXT(setup, 2, " notsupp"); 6754 return 0; 6755 } 6756 rc = qeth_query_setadapterparms(card); 6757 if (rc) { 6758 PRINT_WARN("couldn't set adapter parameters on device %s: " 6759 "x%x\n", CARD_BUS_ID(card), rc); 6760 return rc; 6761 } 6762 if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) { 6763 rc = qeth_setadpparms_change_macaddr(card); 6764 if (rc) 6765 PRINT_WARN("couldn't get MAC address on " 6766 "device %s: x%x\n", 6767 CARD_BUS_ID(card), rc); 6768 } 6769 6770 if ((card->info.link_type == QETH_LINK_TYPE_HSTR) || 6771 (card->info.link_type == QETH_LINK_TYPE_LANE_TR)) 6772 rc = qeth_setadapter_hstr(card); 6773 6774 return rc; 6775} 6776 6777static int 6778qeth_layer2_initialize(struct qeth_card *card) 6779{ 6780 int rc = 0; 6781 6782 6783 QETH_DBF_TEXT(setup, 2, "doL2init"); 6784 QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card)); 6785 6786 rc = qeth_query_setadapterparms(card); 6787 if (rc) { 6788 PRINT_WARN("could not query adapter parameters on device %s: " 6789 "x%x\n", CARD_BUS_ID(card), rc); 6790 } 6791 6792 rc = qeth_setadpparms_change_macaddr(card); 6793 if (rc) { 6794 PRINT_WARN("couldn't get MAC address on " 6795 "device %s: x%x\n", 6796 CARD_BUS_ID(card), rc); 6797 QETH_DBF_TEXT_(setup, 2,"1err%d",rc); 6798 return rc; 6799 } 6800 QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN); 6801 6802 rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]); 6803 if (rc) 6804 QETH_DBF_TEXT_(setup, 2,"2err%d",rc); 6805 return 0; 6806} 6807 6808 6809static int 6810qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd, 6811 enum qeth_prot_versions prot) 6812{ 6813 int rc; 6814 struct qeth_cmd_buffer *iob; 6815 6816 iob = qeth_get_ipacmd_buffer(card,ipacmd,prot); 6817 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); 6818 6819 return rc; 6820} 6821 6822static int 6823qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot) 6824{ 6825 int rc; 6826 6827 QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot); 6828 6829 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot); 6830 return rc; 6831} 6832 6833static int 6834qeth_send_stoplan(struct qeth_card *card) 6835{ 6836 int rc = 0; 6837 6838 /* 6839 * TODO: according to the IPA format document page 14, 6840 * TCP/IP (we!) never issue a STOPLAN 6841 * is this right ?!? 6842 */ 6843 QETH_DBF_TEXT(trace, 2, "stoplan"); 6844 6845 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4); 6846 return rc; 6847} 6848 6849static int 6850qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply, 6851 unsigned long data) 6852{ 6853 struct qeth_ipa_cmd *cmd; 6854 6855 QETH_DBF_TEXT(setup, 2, "qipasscb"); 6856 6857 cmd = (struct qeth_ipa_cmd *) data; 6858 if (cmd->hdr.prot_version == QETH_PROT_IPV4) { 6859 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; 6860 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 6861 /* Disable IPV6 support hard coded for Hipersockets */ 6862 if(card->info.type == QETH_CARD_TYPE_IQD) 6863 card->options.ipa4.supported_funcs &= ~IPA_IPV6; 6864 } else { 6865#ifdef CONFIG_QETH_IPV6 6866 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; 6867 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 6868#endif 6869 } 6870 QETH_DBF_TEXT(setup, 2, "suppenbl"); 6871 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported); 6872 QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled); 6873 return 0; 6874} 6875 6876static int 6877qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot) 6878{ 6879 int rc; 6880 struct qeth_cmd_buffer *iob; 6881 6882 QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot); 6883 if (card->options.layer2) { 6884 QETH_DBF_TEXT(setup, 2, "noprmly2"); 6885 return -EPERM; 6886 } 6887 6888 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot); 6889 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); 6890 return rc; 6891} 6892 6893static struct qeth_cmd_buffer * 6894qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func, 6895 __u16 cmd_code, __u16 len, 6896 enum qeth_prot_versions prot) 6897{ 6898 struct qeth_cmd_buffer *iob; 6899 struct qeth_ipa_cmd *cmd; 6900 6901 QETH_DBF_TEXT(trace,4,"getasscm"); 6902 iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot); 6903 6904 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 6905 cmd->data.setassparms.hdr.assist_no = ipa_func; 6906 cmd->data.setassparms.hdr.length = 8 + len; 6907 cmd->data.setassparms.hdr.command_code = cmd_code; 6908 cmd->data.setassparms.hdr.return_code = 0; 6909 cmd->data.setassparms.hdr.seq_no = 0; 6910 6911 return iob; 6912} 6913 6914static int 6915qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob, 6916 __u16 len, long data, 6917 int (*reply_cb) 6918 (struct qeth_card *,struct qeth_reply *,unsigned long), 6919 void *reply_param) 6920{ 6921 int rc; 6922 struct qeth_ipa_cmd *cmd; 6923 6924 QETH_DBF_TEXT(trace,4,"sendassp"); 6925 6926 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 6927 if (len <= sizeof(__u32)) 6928 cmd->data.setassparms.data.flags_32bit = (__u32) data; 6929 else /* (len > sizeof(__u32)) */ 6930 memcpy(&cmd->data.setassparms.data, (void *) data, len); 6931 6932 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param); 6933 return rc; 6934} 6935 6936#ifdef CONFIG_QETH_IPV6 6937static int 6938qeth_send_simple_setassparms_ipv6(struct qeth_card *card, 6939 enum qeth_ipa_funcs ipa_func, __u16 cmd_code) 6940 6941{ 6942 int rc; 6943 struct qeth_cmd_buffer *iob; 6944 6945 QETH_DBF_TEXT(trace,4,"simassp6"); 6946 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, 6947 0, QETH_PROT_IPV6); 6948 rc = qeth_send_setassparms(card, iob, 0, 0, 6949 qeth_default_setassparms_cb, NULL); 6950 return rc; 6951} 6952#endif 6953 6954static int 6955qeth_send_simple_setassparms(struct qeth_card *card, 6956 enum qeth_ipa_funcs ipa_func, 6957 __u16 cmd_code, long data) 6958{ 6959 int rc; 6960 int length = 0; 6961 struct qeth_cmd_buffer *iob; 6962 6963 QETH_DBF_TEXT(trace,4,"simassp4"); 6964 if (data) 6965 length = sizeof(__u32); 6966 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, 6967 length, QETH_PROT_IPV4); 6968 rc = qeth_send_setassparms(card, iob, length, data, 6969 qeth_default_setassparms_cb, NULL); 6970 return rc; 6971} 6972 6973static int 6974qeth_start_ipa_arp_processing(struct qeth_card *card) 6975{ 6976 int rc; 6977 6978 QETH_DBF_TEXT(trace,3,"ipaarp"); 6979 6980 if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) { 6981 PRINT_WARN("ARP processing not supported " 6982 "on %s!\n", QETH_CARD_IFNAME(card)); 6983 return 0; 6984 } 6985 rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING, 6986 IPA_CMD_ASS_START, 0); 6987 if (rc) { 6988 PRINT_WARN("Could not start ARP processing " 6989 "assist on %s: 0x%x\n", 6990 QETH_CARD_IFNAME(card), rc); 6991 } 6992 return rc; 6993} 6994 6995static int 6996qeth_start_ipa_ip_fragmentation(struct qeth_card *card) 6997{ 6998 int rc; 6999 7000 QETH_DBF_TEXT(trace,3,"ipaipfrg"); 7001 7002 if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) { 7003 PRINT_INFO("Hardware IP fragmentation not supported on %s\n", 7004 QETH_CARD_IFNAME(card)); 7005 return -EOPNOTSUPP; 7006 } 7007 7008 rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION, 7009 IPA_CMD_ASS_START, 0); 7010 if (rc) { 7011 PRINT_WARN("Could not start Hardware IP fragmentation " 7012 "assist on %s: 0x%x\n", 7013 QETH_CARD_IFNAME(card), rc); 7014 } else 7015 PRINT_INFO("Hardware IP fragmentation enabled \n"); 7016 return rc; 7017} 7018 7019static int 7020qeth_start_ipa_source_mac(struct qeth_card *card) 7021{ 7022 int rc; 7023 7024 QETH_DBF_TEXT(trace,3,"stsrcmac"); 7025 7026 if (!card->options.fake_ll) 7027 return -EOPNOTSUPP; 7028 7029 if (!qeth_is_supported(card, IPA_SOURCE_MAC)) { 7030 PRINT_INFO("Inbound source address not " 7031 "supported on %s\n", QETH_CARD_IFNAME(card)); 7032 return -EOPNOTSUPP; 7033 } 7034 7035 rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC, 7036 IPA_CMD_ASS_START, 0); 7037 if (rc) 7038 PRINT_WARN("Could not start inbound source " 7039 "assist on %s: 0x%x\n", 7040 QETH_CARD_IFNAME(card), rc); 7041 return rc; 7042} 7043 7044static int 7045qeth_start_ipa_vlan(struct qeth_card *card) 7046{ 7047 int rc = 0; 7048 7049 QETH_DBF_TEXT(trace,3,"strtvlan"); 7050 7051#ifdef CONFIG_QETH_VLAN 7052 if (!qeth_is_supported(card, IPA_FULL_VLAN)) { 7053 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card)); 7054 return -EOPNOTSUPP; 7055 } 7056 7057 rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO, 7058 IPA_CMD_ASS_START,0); 7059 if (rc) { 7060 PRINT_WARN("Could not start vlan " 7061 "assist on %s: 0x%x\n", 7062 QETH_CARD_IFNAME(card), rc); 7063 } else { 7064 PRINT_INFO("VLAN enabled \n"); 7065 card->dev->features |= 7066 NETIF_F_HW_VLAN_FILTER | 7067 NETIF_F_HW_VLAN_TX | 7068 NETIF_F_HW_VLAN_RX; 7069 } 7070#endif /* QETH_VLAN */ 7071 return rc; 7072} 7073 7074static int 7075qeth_start_ipa_multicast(struct qeth_card *card) 7076{ 7077 int rc; 7078 7079 QETH_DBF_TEXT(trace,3,"stmcast"); 7080 7081 if (!qeth_is_supported(card, IPA_MULTICASTING)) { 7082 PRINT_WARN("Multicast not supported on %s\n", 7083 QETH_CARD_IFNAME(card)); 7084 return -EOPNOTSUPP; 7085 } 7086 7087 rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING, 7088 IPA_CMD_ASS_START,0); 7089 if (rc) { 7090 PRINT_WARN("Could not start multicast " 7091 "assist on %s: rc=%i\n", 7092 QETH_CARD_IFNAME(card), rc); 7093 } else { 7094 PRINT_INFO("Multicast enabled\n"); 7095 card->dev->flags |= IFF_MULTICAST; 7096 } 7097 return rc; 7098} 7099 7100#ifdef CONFIG_QETH_IPV6 7101static int 7102qeth_softsetup_ipv6(struct qeth_card *card) 7103{ 7104 int rc; 7105 7106 QETH_DBF_TEXT(trace,3,"softipv6"); 7107 7108 rc = qeth_send_startlan(card, QETH_PROT_IPV6); 7109 if (rc) { 7110 PRINT_ERR("IPv6 startlan failed on %s\n", 7111 QETH_CARD_IFNAME(card)); 7112 return rc; 7113 } 7114 rc = qeth_query_ipassists(card,QETH_PROT_IPV6); 7115 if (rc) { 7116 PRINT_ERR("IPv6 query ipassist failed on %s\n", 7117 QETH_CARD_IFNAME(card)); 7118 return rc; 7119 } 7120 rc = qeth_send_simple_setassparms(card, IPA_IPV6, 7121 IPA_CMD_ASS_START, 3); 7122 if (rc) { 7123 PRINT_WARN("IPv6 start assist (version 4) failed " 7124 "on %s: 0x%x\n", 7125 QETH_CARD_IFNAME(card), rc); 7126 return rc; 7127 } 7128 rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6, 7129 IPA_CMD_ASS_START); 7130 if (rc) { 7131 PRINT_WARN("IPV6 start assist (version 6) failed " 7132 "on %s: 0x%x\n", 7133 QETH_CARD_IFNAME(card), rc); 7134 return rc; 7135 } 7136 rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU, 7137 IPA_CMD_ASS_START); 7138 if (rc) { 7139 PRINT_WARN("Could not enable passthrough " 7140 "on %s: 0x%x\n", 7141 QETH_CARD_IFNAME(card), rc); 7142 return rc; 7143 } 7144 PRINT_INFO("IPV6 enabled \n"); 7145 return 0; 7146} 7147 7148#endif 7149 7150static int 7151qeth_start_ipa_ipv6(struct qeth_card *card) 7152{ 7153 int rc = 0; 7154#ifdef CONFIG_QETH_IPV6 7155 QETH_DBF_TEXT(trace,3,"strtipv6"); 7156 7157 if (!qeth_is_supported(card, IPA_IPV6)) { 7158 PRINT_WARN("IPv6 not supported on %s\n", 7159 QETH_CARD_IFNAME(card)); 7160 return 0; 7161 } 7162 rc = qeth_softsetup_ipv6(card); 7163#endif 7164 return rc ; 7165} 7166 7167static int 7168qeth_start_ipa_broadcast(struct qeth_card *card) 7169{ 7170 int rc; 7171 7172 QETH_DBF_TEXT(trace,3,"stbrdcst"); 7173 card->info.broadcast_capable = 0; 7174 if (!qeth_is_supported(card, IPA_FILTERING)) { 7175 PRINT_WARN("Broadcast not supported on %s\n", 7176 QETH_CARD_IFNAME(card)); 7177 rc = -EOPNOTSUPP; 7178 goto out; 7179 } 7180 rc = qeth_send_simple_setassparms(card, IPA_FILTERING, 7181 IPA_CMD_ASS_START, 0); 7182 if (rc) { 7183 PRINT_WARN("Could not enable broadcasting filtering " 7184 "on %s: 0x%x\n", 7185 QETH_CARD_IFNAME(card), rc); 7186 goto out; 7187 } 7188 7189 rc = qeth_send_simple_setassparms(card, IPA_FILTERING, 7190 IPA_CMD_ASS_CONFIGURE, 1); 7191 if (rc) { 7192 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n", 7193 QETH_CARD_IFNAME(card), rc); 7194 goto out; 7195 } 7196 card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO; 7197 PRINT_INFO("Broadcast enabled \n"); 7198 rc = qeth_send_simple_setassparms(card, IPA_FILTERING, 7199 IPA_CMD_ASS_ENABLE, 1); 7200 if (rc) { 7201 PRINT_WARN("Could not set up broadcast echo filtering on " 7202 "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc); 7203 goto out; 7204 } 7205 card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO; 7206out: 7207 if (card->info.broadcast_capable) 7208 card->dev->flags |= IFF_BROADCAST; 7209 else 7210 card->dev->flags &= ~IFF_BROADCAST; 7211 return rc; 7212} 7213 7214static int 7215qeth_send_checksum_command(struct qeth_card *card) 7216{ 7217 int rc; 7218 7219 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM, 7220 IPA_CMD_ASS_START, 0); 7221 if (rc) { 7222 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: " 7223 "0x%x,\ncontinuing using Inbound SW Checksumming\n", 7224 QETH_CARD_IFNAME(card), rc); 7225 return rc; 7226 } 7227 rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM, 7228 IPA_CMD_ASS_ENABLE, 7229 card->info.csum_mask); 7230 if (rc) { 7231 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: " 7232 "0x%x,\ncontinuing using Inbound SW Checksumming\n", 7233 QETH_CARD_IFNAME(card), rc); 7234 return rc; 7235 } 7236 return 0; 7237} 7238 7239static int 7240qeth_start_ipa_checksum(struct qeth_card *card) 7241{ 7242 int rc = 0; 7243 7244 QETH_DBF_TEXT(trace,3,"strtcsum"); 7245 7246 if (card->options.checksum_type == NO_CHECKSUMMING) { 7247 PRINT_WARN("Using no checksumming on %s.\n", 7248 QETH_CARD_IFNAME(card)); 7249 return 0; 7250 } 7251 if (card->options.checksum_type == SW_CHECKSUMMING) { 7252 PRINT_WARN("Using SW checksumming on %s.\n", 7253 QETH_CARD_IFNAME(card)); 7254 return 0; 7255 } 7256 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) { 7257 PRINT_WARN("Inbound HW Checksumming not " 7258 "supported on %s,\ncontinuing " 7259 "using Inbound SW Checksumming\n", 7260 QETH_CARD_IFNAME(card)); 7261 card->options.checksum_type = SW_CHECKSUMMING; 7262 return 0; 7263 } 7264 rc = qeth_send_checksum_command(card); 7265 if (!rc) { 7266 PRINT_INFO("HW Checksumming (inbound) enabled \n"); 7267 } 7268 return rc; 7269} 7270 7271static int 7272qeth_start_ipa_tso(struct qeth_card *card) 7273{ 7274 int rc; 7275 7276 QETH_DBF_TEXT(trace,3,"sttso"); 7277 7278 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) { 7279 PRINT_WARN("Outbound TSO not supported on %s\n", 7280 QETH_CARD_IFNAME(card)); 7281 rc = -EOPNOTSUPP; 7282 } else { 7283 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO, 7284 IPA_CMD_ASS_START,0); 7285 if (rc) 7286 PRINT_WARN("Could not start outbound TSO " 7287 "assist on %s: rc=%i\n", 7288 QETH_CARD_IFNAME(card), rc); 7289 else 7290 PRINT_INFO("Outbound TSO enabled\n"); 7291 } 7292 if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){ 7293 card->options.large_send = QETH_LARGE_SEND_NO; 7294 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG); 7295 } 7296 return rc; 7297} 7298 7299static int 7300qeth_start_ipassists(struct qeth_card *card) 7301{ 7302 QETH_DBF_TEXT(trace,3,"strtipas"); 7303 qeth_start_ipa_arp_processing(card); /* go on*/ 7304 qeth_start_ipa_ip_fragmentation(card); /* go on*/ 7305 qeth_start_ipa_source_mac(card); /* go on*/ 7306 qeth_start_ipa_vlan(card); /* go on*/ 7307 qeth_start_ipa_multicast(card); /* go on*/ 7308 qeth_start_ipa_ipv6(card); /* go on*/ 7309 qeth_start_ipa_broadcast(card); /* go on*/ 7310 qeth_start_ipa_checksum(card); /* go on*/ 7311 qeth_start_ipa_tso(card); /* go on*/ 7312 return 0; 7313} 7314 7315static int 7316qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type, 7317 enum qeth_prot_versions prot) 7318{ 7319 int rc; 7320 struct qeth_ipa_cmd *cmd; 7321 struct qeth_cmd_buffer *iob; 7322 7323 QETH_DBF_TEXT(trace,4,"setroutg"); 7324 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot); 7325 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 7326 cmd->data.setrtg.type = (type); 7327 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); 7328 7329 return rc; 7330 7331} 7332 7333static void 7334qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type, 7335 enum qeth_prot_versions prot) 7336{ 7337 if (card->info.type == QETH_CARD_TYPE_IQD) { 7338 switch (*type) { 7339 case NO_ROUTER: 7340 case PRIMARY_CONNECTOR: 7341 case SECONDARY_CONNECTOR: 7342 case MULTICAST_ROUTER: 7343 return; 7344 default: 7345 goto out_inval; 7346 } 7347 } else { 7348 switch (*type) { 7349 case NO_ROUTER: 7350 case PRIMARY_ROUTER: 7351 case SECONDARY_ROUTER: 7352 return; 7353 case MULTICAST_ROUTER: 7354 if (qeth_is_ipafunc_supported(card, prot, 7355 IPA_OSA_MC_ROUTER)) 7356 return; 7357 default: 7358 goto out_inval; 7359 } 7360 } 7361out_inval: 7362 PRINT_WARN("Routing type '%s' not supported for interface %s.\n" 7363 "Router status set to 'no router'.\n", 7364 ((*type == PRIMARY_ROUTER)? "primary router" : 7365 (*type == SECONDARY_ROUTER)? "secondary router" : 7366 (*type == PRIMARY_CONNECTOR)? "primary connector" : 7367 (*type == SECONDARY_CONNECTOR)? "secondary connector" : 7368 (*type == MULTICAST_ROUTER)? "multicast router" : 7369 "unknown"), 7370 card->dev->name); 7371 *type = NO_ROUTER; 7372} 7373 7374int 7375qeth_setrouting_v4(struct qeth_card *card) 7376{ 7377 int rc; 7378 7379 QETH_DBF_TEXT(trace,3,"setrtg4"); 7380 7381 qeth_correct_routing_type(card, &card->options.route4.type, 7382 QETH_PROT_IPV4); 7383 7384 rc = qeth_send_setrouting(card, card->options.route4.type, 7385 QETH_PROT_IPV4); 7386 if (rc) { 7387 card->options.route4.type = NO_ROUTER; 7388 PRINT_WARN("Error (0x%04x) while setting routing type on %s. " 7389 "Type set to 'no router'.\n", 7390 rc, QETH_CARD_IFNAME(card)); 7391 } 7392 return rc; 7393} 7394 7395int 7396qeth_setrouting_v6(struct qeth_card *card) 7397{ 7398 int rc = 0; 7399 7400 QETH_DBF_TEXT(trace,3,"setrtg6"); 7401#ifdef CONFIG_QETH_IPV6 7402 7403 if (!qeth_is_supported(card, IPA_IPV6)) 7404 return 0; 7405 qeth_correct_routing_type(card, &card->options.route6.type, 7406 QETH_PROT_IPV6); 7407 7408 rc = qeth_send_setrouting(card, card->options.route6.type, 7409 QETH_PROT_IPV6); 7410 if (rc) { 7411 card->options.route6.type = NO_ROUTER; 7412 PRINT_WARN("Error (0x%04x) while setting routing type on %s. " 7413 "Type set to 'no router'.\n", 7414 rc, QETH_CARD_IFNAME(card)); 7415 } 7416#endif 7417 return rc; 7418} 7419 7420int 7421qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type) 7422{ 7423 int rc = 0; 7424 7425 if (card->dev == NULL) { 7426 card->options.large_send = type; 7427 return 0; 7428 } 7429 if (card->state == CARD_STATE_UP) 7430 netif_tx_disable(card->dev); 7431 card->options.large_send = type; 7432 switch (card->options.large_send) { 7433 case QETH_LARGE_SEND_EDDP: 7434 card->dev->features |= NETIF_F_TSO | NETIF_F_SG; 7435 break; 7436 case QETH_LARGE_SEND_TSO: 7437 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){ 7438 card->dev->features |= NETIF_F_TSO | NETIF_F_SG; 7439 } else { 7440 PRINT_WARN("TSO not supported on %s. " 7441 "large_send set to 'no'.\n", 7442 card->dev->name); 7443 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); 7444 card->options.large_send = QETH_LARGE_SEND_NO; 7445 rc = -EOPNOTSUPP; 7446 } 7447 break; 7448 default: /* includes QETH_LARGE_SEND_NO */ 7449 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG); 7450 break; 7451 } 7452 if (card->state == CARD_STATE_UP) 7453 netif_wake_queue(card->dev); 7454 return rc; 7455} 7456 7457/* 7458 * softsetup card: init IPA stuff 7459 */ 7460static int 7461qeth_softsetup_card(struct qeth_card *card) 7462{ 7463 int rc; 7464 7465 QETH_DBF_TEXT(setup, 2, "softsetp"); 7466 7467 if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){ 7468 QETH_DBF_TEXT_(setup, 2, "1err%d", rc); 7469 if (rc == 0xe080){ 7470 PRINT_WARN("LAN on card %s if offline! " 7471 "Waiting for STARTLAN from card.\n", 7472 CARD_BUS_ID(card)); 7473 card->lan_online = 0; 7474 } 7475 return rc; 7476 } else 7477 card->lan_online = 1; 7478 if (card->info.type==QETH_CARD_TYPE_OSN) 7479 goto out; 7480 qeth_set_large_send(card, card->options.large_send); 7481 if (card->options.layer2) { 7482 card->dev->features |= 7483 NETIF_F_HW_VLAN_FILTER | 7484 NETIF_F_HW_VLAN_TX | 7485 NETIF_F_HW_VLAN_RX; 7486 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST; 7487 card->info.broadcast_capable=1; 7488 if ((rc = qeth_layer2_initialize(card))) { 7489 QETH_DBF_TEXT_(setup, 2, "L2err%d", rc); 7490 return rc; 7491 } 7492#ifdef CONFIG_QETH_VLAN 7493 qeth_layer2_process_vlans(card, 0); 7494#endif 7495 goto out; 7496 } 7497 if ((rc = qeth_setadapter_parms(card))) 7498 QETH_DBF_TEXT_(setup, 2, "2err%d", rc); 7499 if ((rc = qeth_start_ipassists(card))) 7500 QETH_DBF_TEXT_(setup, 2, "3err%d", rc); 7501 if ((rc = qeth_setrouting_v4(card))) 7502 QETH_DBF_TEXT_(setup, 2, "4err%d", rc); 7503 if ((rc = qeth_setrouting_v6(card))) 7504 QETH_DBF_TEXT_(setup, 2, "5err%d", rc); 7505out: 7506 netif_tx_disable(card->dev); 7507 return 0; 7508} 7509 7510#ifdef CONFIG_QETH_IPV6 7511static int 7512qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply, 7513 unsigned long data) 7514{ 7515 struct qeth_ipa_cmd *cmd; 7516 7517 cmd = (struct qeth_ipa_cmd *) data; 7518 if (cmd->hdr.return_code == 0) 7519 card->info.unique_id = *((__u16 *) 7520 &cmd->data.create_destroy_addr.unique_id[6]); 7521 else { 7522 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | 7523 UNIQUE_ID_NOT_BY_CARD; 7524 PRINT_WARN("couldn't get a unique id from the card on device " 7525 "%s (result=x%x), using default id. ipv6 " 7526 "autoconfig on other lpars may lead to duplicate " 7527 "ip addresses. please use manually " 7528 "configured ones.\n", 7529 CARD_BUS_ID(card), cmd->hdr.return_code); 7530 } 7531 return 0; 7532} 7533#endif 7534 7535static int 7536qeth_put_unique_id(struct qeth_card *card) 7537{ 7538 7539 int rc = 0; 7540#ifdef CONFIG_QETH_IPV6 7541 struct qeth_cmd_buffer *iob; 7542 struct qeth_ipa_cmd *cmd; 7543 7544 QETH_DBF_TEXT(trace,2,"puniqeid"); 7545 7546 if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) == 7547 UNIQUE_ID_NOT_BY_CARD) 7548 return -1; 7549 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR, 7550 QETH_PROT_IPV6); 7551 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 7552 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = 7553 card->info.unique_id; 7554 memcpy(&cmd->data.create_destroy_addr.unique_id[0], 7555 card->dev->dev_addr, OSA_ADDR_LEN); 7556 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); 7557#else 7558 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | 7559 UNIQUE_ID_NOT_BY_CARD; 7560#endif 7561 return rc; 7562} 7563 7564/** 7565 * Clear IP List 7566 */ 7567static void 7568qeth_clear_ip_list(struct qeth_card *card, int clean, int recover) 7569{ 7570 struct qeth_ipaddr *addr, *tmp; 7571 unsigned long flags; 7572 7573 QETH_DBF_TEXT(trace,4,"clearip"); 7574 spin_lock_irqsave(&card->ip_lock, flags); 7575 /* clear todo list */ 7576 list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){ 7577 list_del(&addr->entry); 7578 kfree(addr); 7579 } 7580 7581 while (!list_empty(&card->ip_list)) { 7582 addr = list_entry(card->ip_list.next, 7583 struct qeth_ipaddr, entry); 7584 list_del_init(&addr->entry); 7585 if (clean) { 7586 spin_unlock_irqrestore(&card->ip_lock, flags); 7587 qeth_deregister_addr_entry(card, addr); 7588 spin_lock_irqsave(&card->ip_lock, flags); 7589 } 7590 if (!recover || addr->is_multicast) { 7591 kfree(addr); 7592 continue; 7593 } 7594 list_add_tail(&addr->entry, card->ip_tbd_list); 7595 } 7596 spin_unlock_irqrestore(&card->ip_lock, flags); 7597} 7598 7599static void 7600qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, 7601 int clear_start_mask) 7602{ 7603 unsigned long flags; 7604 7605 spin_lock_irqsave(&card->thread_mask_lock, flags); 7606 card->thread_allowed_mask = threads; 7607 if (clear_start_mask) 7608 card->thread_start_mask &= threads; 7609 spin_unlock_irqrestore(&card->thread_mask_lock, flags); 7610 wake_up(&card->wait_q); 7611} 7612 7613static int 7614qeth_threads_running(struct qeth_card *card, unsigned long threads) 7615{ 7616 unsigned long flags; 7617 int rc = 0; 7618 7619 spin_lock_irqsave(&card->thread_mask_lock, flags); 7620 rc = (card->thread_running_mask & threads); 7621 spin_unlock_irqrestore(&card->thread_mask_lock, flags); 7622 return rc; 7623} 7624 7625static int 7626qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) 7627{ 7628 return wait_event_interruptible(card->wait_q, 7629 qeth_threads_running(card, threads) == 0); 7630} 7631 7632static int 7633qeth_stop_card(struct qeth_card *card, int recovery_mode) 7634{ 7635 int rc = 0; 7636 7637 QETH_DBF_TEXT(setup ,2,"stopcard"); 7638 QETH_DBF_HEX(setup, 2, &card, sizeof(void *)); 7639 7640 qeth_set_allowed_threads(card, 0, 1); 7641 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)) 7642 return -ERESTARTSYS; 7643 if (card->read.state == CH_STATE_UP && 7644 card->write.state == CH_STATE_UP && 7645 (card->state == CARD_STATE_UP)) { 7646 if (recovery_mode && 7647 card->info.type != QETH_CARD_TYPE_OSN) { 7648 qeth_stop(card->dev); 7649 } else { 7650 rtnl_lock(); 7651 dev_close(card->dev); 7652 rtnl_unlock(); 7653 } 7654 if (!card->use_hard_stop) { 7655 __u8 *mac = &card->dev->dev_addr[0]; 7656 rc = qeth_layer2_send_delmac(card, mac); 7657 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc); 7658 if ((rc = qeth_send_stoplan(card))) 7659 QETH_DBF_TEXT_(setup, 2, "1err%d", rc); 7660 } 7661 card->state = CARD_STATE_SOFTSETUP; 7662 } 7663 if (card->state == CARD_STATE_SOFTSETUP) { 7664#ifdef CONFIG_QETH_VLAN 7665 if (card->options.layer2) 7666 qeth_layer2_process_vlans(card, 1); 7667#endif 7668 qeth_clear_ip_list(card, !card->use_hard_stop, 1); 7669 qeth_clear_ipacmd_list(card); 7670 card->state = CARD_STATE_HARDSETUP; 7671 } 7672 if (card->state == CARD_STATE_HARDSETUP) { 7673 if ((!card->use_hard_stop) && 7674 (!card->options.layer2)) 7675 if ((rc = qeth_put_unique_id(card))) 7676 QETH_DBF_TEXT_(setup, 2, "2err%d", rc); 7677 qeth_qdio_clear_card(card, 0); 7678 qeth_clear_qdio_buffers(card); 7679 qeth_clear_working_pool_list(card); 7680 card->state = CARD_STATE_DOWN; 7681 } 7682 if (card->state == CARD_STATE_DOWN) { 7683 qeth_clear_cmd_buffers(&card->read); 7684 qeth_clear_cmd_buffers(&card->write); 7685 } 7686 card->use_hard_stop = 0; 7687 return rc; 7688} 7689 7690 7691static int 7692qeth_get_unique_id(struct qeth_card *card) 7693{ 7694 int rc = 0; 7695#ifdef CONFIG_QETH_IPV6 7696 struct qeth_cmd_buffer *iob; 7697 struct qeth_ipa_cmd *cmd; 7698 7699 QETH_DBF_TEXT(setup, 2, "guniqeid"); 7700 7701 if (!qeth_is_supported(card,IPA_IPV6)) { 7702 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | 7703 UNIQUE_ID_NOT_BY_CARD; 7704 return 0; 7705 } 7706 7707 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR, 7708 QETH_PROT_IPV6); 7709 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); 7710 *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) = 7711 card->info.unique_id; 7712 7713 rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL); 7714#else 7715 card->info.unique_id = UNIQUE_ID_IF_CREATE_ADDR_FAILED | 7716 UNIQUE_ID_NOT_BY_CARD; 7717#endif 7718 return rc; 7719} 7720static void 7721qeth_print_status_with_portname(struct qeth_card *card) 7722{ 7723 char dbf_text[15]; 7724 int i; 7725 7726 sprintf(dbf_text, "%s", card->info.portname + 1); 7727 for (i = 0; i < 8; i++) 7728 dbf_text[i] = 7729 (char) _ebcasc[(__u8) dbf_text[i]]; 7730 dbf_text[8] = 0; 7731 printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n" 7732 "with link type %s (portname: %s)\n", 7733 CARD_RDEV_ID(card), 7734 CARD_WDEV_ID(card), 7735 CARD_DDEV_ID(card), 7736 qeth_get_cardname(card), 7737 (card->info.mcl_level[0]) ? " (level: " : "", 7738 (card->info.mcl_level[0]) ? card->info.mcl_level : "", 7739 (card->info.mcl_level[0]) ? ")" : "", 7740 qeth_get_cardname_short(card), 7741 dbf_text); 7742 7743} 7744 7745static void 7746qeth_print_status_no_portname(struct qeth_card *card) 7747{ 7748 if (card->info.portname[0]) 7749 printk("qeth: Device %s/%s/%s is a%s " 7750 "card%s%s%s\nwith link type %s " 7751 "(no portname needed by interface).\n", 7752 CARD_RDEV_ID(card), 7753 CARD_WDEV_ID(card), 7754 CARD_DDEV_ID(card), 7755 qeth_get_cardname(card), 7756 (card->info.mcl_level[0]) ? " (level: " : "", 7757 (card->info.mcl_level[0]) ? card->info.mcl_level : "", 7758 (card->info.mcl_level[0]) ? ")" : "", 7759 qeth_get_cardname_short(card)); 7760 else 7761 printk("qeth: Device %s/%s/%s is a%s " 7762 "card%s%s%s\nwith link type %s.\n", 7763 CARD_RDEV_ID(card), 7764 CARD_WDEV_ID(card), 7765 CARD_DDEV_ID(card), 7766 qeth_get_cardname(card), 7767 (card->info.mcl_level[0]) ? " (level: " : "", 7768 (card->info.mcl_level[0]) ? card->info.mcl_level : "", 7769 (card->info.mcl_level[0]) ? ")" : "", 7770 qeth_get_cardname_short(card)); 7771} 7772 7773static void 7774qeth_print_status_message(struct qeth_card *card) 7775{ 7776 switch (card->info.type) { 7777 case QETH_CARD_TYPE_OSAE: 7778 /* VM will use a non-zero first character 7779 * to indicate a HiperSockets like reporting 7780 * of the level OSA sets the first character to zero 7781 * */ 7782 if (!card->info.mcl_level[0]) { 7783 sprintf(card->info.mcl_level,"%02x%02x", 7784 card->info.mcl_level[2], 7785 card->info.mcl_level[3]); 7786 7787 card->info.mcl_level[QETH_MCL_LENGTH] = 0; 7788 break; 7789 } 7790 /* fallthrough */ 7791 case QETH_CARD_TYPE_IQD: 7792 if (card->info.guestlan) { 7793 card->info.mcl_level[0] = (char) _ebcasc[(__u8) 7794 card->info.mcl_level[0]]; 7795 card->info.mcl_level[1] = (char) _ebcasc[(__u8) 7796 card->info.mcl_level[1]]; 7797 card->info.mcl_level[2] = (char) _ebcasc[(__u8) 7798 card->info.mcl_level[2]]; 7799 card->info.mcl_level[3] = (char) _ebcasc[(__u8) 7800 card->info.mcl_level[3]]; 7801 card->info.mcl_level[QETH_MCL_LENGTH] = 0; 7802 } 7803 break; 7804 default: 7805 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); 7806 } 7807 if (card->info.portname_required) 7808 qeth_print_status_with_portname(card); 7809 else 7810 qeth_print_status_no_portname(card); 7811} 7812 7813static int 7814qeth_register_netdev(struct qeth_card *card) 7815{ 7816 QETH_DBF_TEXT(setup, 3, "regnetd"); 7817 if (card->dev->reg_state != NETREG_UNINITIALIZED) 7818 return 0; 7819 /* sysfs magic */ 7820 SET_NETDEV_DEV(card->dev, &card->gdev->dev); 7821 return register_netdev(card->dev); 7822} 7823 7824static void 7825qeth_start_again(struct qeth_card *card, int recovery_mode) 7826{ 7827 QETH_DBF_TEXT(setup ,2, "startag"); 7828 7829 if (recovery_mode && 7830 card->info.type != QETH_CARD_TYPE_OSN) { 7831 qeth_open(card->dev); 7832 } else { 7833 rtnl_lock(); 7834 dev_open(card->dev); 7835 rtnl_unlock(); 7836 } 7837 /* this also sets saved unicast addresses */ 7838 qeth_set_multicast_list(card->dev); 7839} 7840 7841 7842/* Layer 2 specific stuff */ 7843#define IGNORE_PARAM_EQ(option,value,reset_value,msg) \ 7844 if (card->options.option == value) { \ 7845 PRINT_ERR("%s not supported with layer 2 " \ 7846 "functionality, ignoring option on read" \ 7847 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \ 7848 card->options.option = reset_value; \ 7849 } 7850#define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \ 7851 if (card->options.option != value) { \ 7852 PRINT_ERR("%s not supported with layer 2 " \ 7853 "functionality, ignoring option on read" \ 7854 "channel device %s .\n",msg,CARD_RDEV_ID(card)); \ 7855 card->options.option = reset_value; \ 7856 } 7857 7858 7859static void qeth_make_parameters_consistent(struct qeth_card *card) 7860{ 7861 7862 if (card->options.layer2 == 0) 7863 return; 7864 if (card->info.type == QETH_CARD_TYPE_OSN) 7865 return; 7866 if (card->info.type == QETH_CARD_TYPE_IQD) { 7867 PRINT_ERR("Device %s does not support layer 2 functionality." \ 7868 " Ignoring layer2 option.\n",CARD_BUS_ID(card)); 7869 card->options.layer2 = 0; 7870 return; 7871 } 7872 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER, 7873 "Routing options are"); 7874#ifdef CONFIG_QETH_IPV6 7875 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER, 7876 "Routing options are"); 7877#endif 7878 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING, 7879 QETH_CHECKSUM_DEFAULT, 7880 "Checksumming options are"); 7881 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS, 7882 QETH_TR_BROADCAST_ALLRINGS, 7883 "Broadcast mode options are"); 7884 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL, 7885 QETH_TR_MACADDR_NONCANONICAL, 7886 "Canonical MAC addr options are"); 7887 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0, 7888 "Broadcast faking options are"); 7889 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN, 7890 DEFAULT_ADD_HHLEN,"Option add_hhlen is"); 7891 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is"); 7892} 7893 7894 7895static int 7896__qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode) 7897{ 7898 struct qeth_card *card = gdev->dev.driver_data; 7899 int rc = 0; 7900 enum qeth_card_states recover_flag; 7901 7902 BUG_ON(!card); 7903 QETH_DBF_TEXT(setup ,2, "setonlin"); 7904 QETH_DBF_HEX(setup, 2, &card, sizeof(void *)); 7905 7906 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1); 7907 if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){ 7908 PRINT_WARN("set_online of card %s interrupted by user!\n", 7909 CARD_BUS_ID(card)); 7910 return -ERESTARTSYS; 7911 } 7912 7913 recover_flag = card->state; 7914 if ((rc = ccw_device_set_online(CARD_RDEV(card))) || 7915 (rc = ccw_device_set_online(CARD_WDEV(card))) || 7916 (rc = ccw_device_set_online(CARD_DDEV(card)))){ 7917 QETH_DBF_TEXT_(setup, 2, "1err%d", rc); 7918 return -EIO; 7919 } 7920 7921 qeth_make_parameters_consistent(card); 7922 7923 if ((rc = qeth_hardsetup_card(card))){ 7924 QETH_DBF_TEXT_(setup, 2, "2err%d", rc); 7925 goto out_remove; 7926 } 7927 card->state = CARD_STATE_HARDSETUP; 7928 7929 if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4))) 7930 rc = qeth_get_unique_id(card); 7931 7932 if (rc && card->options.layer2 == 0) { 7933 QETH_DBF_TEXT_(setup, 2, "3err%d", rc); 7934 goto out_remove; 7935 } 7936 qeth_print_status_message(card); 7937 if ((rc = qeth_register_netdev(card))){ 7938 QETH_DBF_TEXT_(setup, 2, "4err%d", rc); 7939 goto out_remove; 7940 } 7941 if ((rc = qeth_softsetup_card(card))){ 7942 QETH_DBF_TEXT_(setup, 2, "5err%d", rc); 7943 goto out_remove; 7944 } 7945 7946 if ((rc = qeth_init_qdio_queues(card))){ 7947 QETH_DBF_TEXT_(setup, 2, "6err%d", rc); 7948 goto out_remove; 7949 } 7950 card->state = CARD_STATE_SOFTSETUP; 7951 netif_carrier_on(card->dev); 7952 7953 qeth_set_allowed_threads(card, 0xffffffff, 0); 7954 if (recover_flag == CARD_STATE_RECOVER) 7955 qeth_start_again(card, recovery_mode); 7956 qeth_notify_processes(); 7957 return 0; 7958out_remove: 7959 card->use_hard_stop = 1; 7960 qeth_stop_card(card, 0); 7961 ccw_device_set_offline(CARD_DDEV(card)); 7962 ccw_device_set_offline(CARD_WDEV(card)); 7963 ccw_device_set_offline(CARD_RDEV(card)); 7964 if (recover_flag == CARD_STATE_RECOVER) 7965 card->state = CARD_STATE_RECOVER; 7966 else 7967 card->state = CARD_STATE_DOWN; 7968 return -ENODEV; 7969} 7970 7971static int 7972qeth_set_online(struct ccwgroup_device *gdev) 7973{ 7974 return __qeth_set_online(gdev, 0); 7975} 7976 7977static struct ccw_device_id qeth_ids[] = { 7978 {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE}, 7979 {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD}, 7980 {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN}, 7981 {}, 7982}; 7983MODULE_DEVICE_TABLE(ccw, qeth_ids); 7984 7985struct device *qeth_root_dev = NULL; 7986 7987struct ccwgroup_driver qeth_ccwgroup_driver = { 7988 .owner = THIS_MODULE, 7989 .name = "qeth", 7990 .driver_id = 0xD8C5E3C8, 7991 .probe = qeth_probe_device, 7992 .remove = qeth_remove_device, 7993 .set_online = qeth_set_online, 7994 .set_offline = qeth_set_offline, 7995}; 7996 7997struct ccw_driver qeth_ccw_driver = { 7998 .name = "qeth", 7999 .ids = qeth_ids, 8000 .probe = ccwgroup_probe_ccwdev, 8001 .remove = ccwgroup_remove_ccwdev, 8002}; 8003 8004 8005static void 8006qeth_unregister_dbf_views(void) 8007{ 8008 if (qeth_dbf_setup) 8009 debug_unregister(qeth_dbf_setup); 8010 if (qeth_dbf_qerr) 8011 debug_unregister(qeth_dbf_qerr); 8012 if (qeth_dbf_sense) 8013 debug_unregister(qeth_dbf_sense); 8014 if (qeth_dbf_misc) 8015 debug_unregister(qeth_dbf_misc); 8016 if (qeth_dbf_data) 8017 debug_unregister(qeth_dbf_data); 8018 if (qeth_dbf_control) 8019 debug_unregister(qeth_dbf_control); 8020 if (qeth_dbf_trace) 8021 debug_unregister(qeth_dbf_trace); 8022} 8023static int 8024qeth_register_dbf_views(void) 8025{ 8026 qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME, 8027 QETH_DBF_SETUP_PAGES, 8028 QETH_DBF_SETUP_NR_AREAS, 8029 QETH_DBF_SETUP_LEN); 8030 qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME, 8031 QETH_DBF_MISC_PAGES, 8032 QETH_DBF_MISC_NR_AREAS, 8033 QETH_DBF_MISC_LEN); 8034 qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME, 8035 QETH_DBF_DATA_PAGES, 8036 QETH_DBF_DATA_NR_AREAS, 8037 QETH_DBF_DATA_LEN); 8038 qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME, 8039 QETH_DBF_CONTROL_PAGES, 8040 QETH_DBF_CONTROL_NR_AREAS, 8041 QETH_DBF_CONTROL_LEN); 8042 qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME, 8043 QETH_DBF_SENSE_PAGES, 8044 QETH_DBF_SENSE_NR_AREAS, 8045 QETH_DBF_SENSE_LEN); 8046 qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME, 8047 QETH_DBF_QERR_PAGES, 8048 QETH_DBF_QERR_NR_AREAS, 8049 QETH_DBF_QERR_LEN); 8050 qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME, 8051 QETH_DBF_TRACE_PAGES, 8052 QETH_DBF_TRACE_NR_AREAS, 8053 QETH_DBF_TRACE_LEN); 8054 8055 if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL) || 8056 (qeth_dbf_data == NULL) || (qeth_dbf_control == NULL) || 8057 (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL) || 8058 (qeth_dbf_trace == NULL)) { 8059 qeth_unregister_dbf_views(); 8060 return -ENOMEM; 8061 } 8062 debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view); 8063 debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL); 8064 8065 debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view); 8066 debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL); 8067 8068 debug_register_view(qeth_dbf_data, &debug_hex_ascii_view); 8069 debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL); 8070 8071 debug_register_view(qeth_dbf_control, &debug_hex_ascii_view); 8072 debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL); 8073 8074 debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view); 8075 debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL); 8076 8077 debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view); 8078 debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL); 8079 8080 debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view); 8081 debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL); 8082 8083 return 0; 8084} 8085 8086#ifdef CONFIG_QETH_IPV6 8087extern struct neigh_table arp_tbl; 8088static struct neigh_ops *arp_direct_ops; 8089static int (*qeth_old_arp_constructor) (struct neighbour *); 8090 8091static struct neigh_ops arp_direct_ops_template = { 8092 .family = AF_INET, 8093 .solicit = NULL, 8094 .error_report = NULL, 8095 .output = dev_queue_xmit, 8096 .connected_output = dev_queue_xmit, 8097 .hh_output = dev_queue_xmit, 8098 .queue_xmit = dev_queue_xmit 8099}; 8100 8101static int 8102qeth_arp_constructor(struct neighbour *neigh) 8103{ 8104 struct net_device *dev = neigh->dev; 8105 struct in_device *in_dev; 8106 struct neigh_parms *parms; 8107 struct qeth_card *card; 8108 8109 card = qeth_get_card_from_dev(dev); 8110 if (card == NULL) 8111 goto out; 8112 if((card->options.layer2) || 8113 (card->dev->hard_header == qeth_fake_header)) 8114 goto out; 8115 8116 rcu_read_lock(); 8117 in_dev = __in_dev_get_rcu(dev); 8118 if (in_dev == NULL) { 8119 rcu_read_unlock(); 8120 return -EINVAL; 8121 } 8122 8123 parms = in_dev->arp_parms; 8124 __neigh_parms_put(neigh->parms); 8125 neigh->parms = neigh_parms_clone(parms); 8126 rcu_read_unlock(); 8127 8128 neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key); 8129 neigh->nud_state = NUD_NOARP; 8130 neigh->ops = arp_direct_ops; 8131 neigh->output = neigh->ops->queue_xmit; 8132 return 0; 8133out: 8134 return qeth_old_arp_constructor(neigh); 8135} 8136#endif /*CONFIG_QETH_IPV6*/ 8137 8138/* 8139 * IP address takeover related functions 8140 */ 8141static void 8142qeth_clear_ipato_list(struct qeth_card *card) 8143{ 8144 struct qeth_ipato_entry *ipatoe, *tmp; 8145 unsigned long flags; 8146 8147 spin_lock_irqsave(&card->ip_lock, flags); 8148 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) { 8149 list_del(&ipatoe->entry); 8150 kfree(ipatoe); 8151 } 8152 spin_unlock_irqrestore(&card->ip_lock, flags); 8153} 8154 8155int 8156qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new) 8157{ 8158 struct qeth_ipato_entry *ipatoe; 8159 unsigned long flags; 8160 int rc = 0; 8161 8162 QETH_DBF_TEXT(trace, 2, "addipato"); 8163 spin_lock_irqsave(&card->ip_lock, flags); 8164 list_for_each_entry(ipatoe, &card->ipato.entries, entry){ 8165 if (ipatoe->proto != new->proto) 8166 continue; 8167 if (!memcmp(ipatoe->addr, new->addr, 8168 (ipatoe->proto == QETH_PROT_IPV4)? 4:16) && 8169 (ipatoe->mask_bits == new->mask_bits)){ 8170 PRINT_WARN("ipato entry already exists!\n"); 8171 rc = -EEXIST; 8172 break; 8173 } 8174 } 8175 if (!rc) { 8176 list_add_tail(&new->entry, &card->ipato.entries); 8177 } 8178 spin_unlock_irqrestore(&card->ip_lock, flags); 8179 return rc; 8180} 8181 8182void 8183qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto, 8184 u8 *addr, int mask_bits) 8185{ 8186 struct qeth_ipato_entry *ipatoe, *tmp; 8187 unsigned long flags; 8188 8189 QETH_DBF_TEXT(trace, 2, "delipato"); 8190 spin_lock_irqsave(&card->ip_lock, flags); 8191 list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){ 8192 if (ipatoe->proto != proto) 8193 continue; 8194 if (!memcmp(ipatoe->addr, addr, 8195 (proto == QETH_PROT_IPV4)? 4:16) && 8196 (ipatoe->mask_bits == mask_bits)){ 8197 list_del(&ipatoe->entry); 8198 kfree(ipatoe); 8199 } 8200 } 8201 spin_unlock_irqrestore(&card->ip_lock, flags); 8202} 8203 8204static void 8205qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len) 8206{ 8207 int i, j; 8208 u8 octet; 8209 8210 for (i = 0; i < len; ++i){ 8211 octet = addr[i]; 8212 for (j = 7; j >= 0; --j){ 8213 bits[i*8 + j] = octet & 1; 8214 octet >>= 1; 8215 } 8216 } 8217} 8218 8219static int 8220qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr) 8221{ 8222 struct qeth_ipato_entry *ipatoe; 8223 u8 addr_bits[128] = {0, }; 8224 u8 ipatoe_bits[128] = {0, }; 8225 int rc = 0; 8226 8227 if (!card->ipato.enabled) 8228 return 0; 8229 8230 qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits, 8231 (addr->proto == QETH_PROT_IPV4)? 4:16); 8232 list_for_each_entry(ipatoe, &card->ipato.entries, entry){ 8233 if (addr->proto != ipatoe->proto) 8234 continue; 8235 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits, 8236 (ipatoe->proto==QETH_PROT_IPV4) ? 8237 4:16); 8238 if (addr->proto == QETH_PROT_IPV4) 8239 rc = !memcmp(addr_bits, ipatoe_bits, 8240 min(32, ipatoe->mask_bits)); 8241 else 8242 rc = !memcmp(addr_bits, ipatoe_bits, 8243 min(128, ipatoe->mask_bits)); 8244 if (rc) 8245 break; 8246 } 8247 /* invert? */ 8248 if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4) 8249 rc = !rc; 8250 else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6) 8251 rc = !rc; 8252 8253 return rc; 8254} 8255 8256/* 8257 * VIPA related functions 8258 */ 8259int 8260qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto, 8261 const u8 *addr) 8262{ 8263 struct qeth_ipaddr *ipaddr; 8264 unsigned long flags; 8265 int rc = 0; 8266 8267 ipaddr = qeth_get_addr_buffer(proto); 8268 if (ipaddr){ 8269 if (proto == QETH_PROT_IPV4){ 8270 QETH_DBF_TEXT(trace, 2, "addvipa4"); 8271 memcpy(&ipaddr->u.a4.addr, addr, 4); 8272 ipaddr->u.a4.mask = 0; 8273#ifdef CONFIG_QETH_IPV6 8274 } else if (proto == QETH_PROT_IPV6){ 8275 QETH_DBF_TEXT(trace, 2, "addvipa6"); 8276 memcpy(&ipaddr->u.a6.addr, addr, 16); 8277 ipaddr->u.a6.pfxlen = 0; 8278#endif 8279 } 8280 ipaddr->type = QETH_IP_TYPE_VIPA; 8281 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG; 8282 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG; 8283 } else 8284 return -ENOMEM; 8285 spin_lock_irqsave(&card->ip_lock, flags); 8286 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) || 8287 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0)) 8288 rc = -EEXIST; 8289 spin_unlock_irqrestore(&card->ip_lock, flags); 8290 if (rc){ 8291 PRINT_WARN("Cannot add VIPA. Address already exists!\n"); 8292 return rc; 8293 } 8294 if (!qeth_add_ip(card, ipaddr)) 8295 kfree(ipaddr); 8296 qeth_set_ip_addr_list(card); 8297 return rc; 8298} 8299 8300void 8301qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto, 8302 const u8 *addr) 8303{ 8304 struct qeth_ipaddr *ipaddr; 8305 8306 ipaddr = qeth_get_addr_buffer(proto); 8307 if (ipaddr){ 8308 if (proto == QETH_PROT_IPV4){ 8309 QETH_DBF_TEXT(trace, 2, "delvipa4"); 8310 memcpy(&ipaddr->u.a4.addr, addr, 4); 8311 ipaddr->u.a4.mask = 0; 8312#ifdef CONFIG_QETH_IPV6 8313 } else if (proto == QETH_PROT_IPV6){ 8314 QETH_DBF_TEXT(trace, 2, "delvipa6"); 8315 memcpy(&ipaddr->u.a6.addr, addr, 16); 8316 ipaddr->u.a6.pfxlen = 0; 8317#endif 8318 } 8319 ipaddr->type = QETH_IP_TYPE_VIPA; 8320 } else 8321 return; 8322 if (!qeth_delete_ip(card, ipaddr)) 8323 kfree(ipaddr); 8324 qeth_set_ip_addr_list(card); 8325} 8326 8327/* 8328 * proxy ARP related functions 8329 */ 8330int 8331qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto, 8332 const u8 *addr) 8333{ 8334 struct qeth_ipaddr *ipaddr; 8335 unsigned long flags; 8336 int rc = 0; 8337 8338 ipaddr = qeth_get_addr_buffer(proto); 8339 if (ipaddr){ 8340 if (proto == QETH_PROT_IPV4){ 8341 QETH_DBF_TEXT(trace, 2, "addrxip4"); 8342 memcpy(&ipaddr->u.a4.addr, addr, 4); 8343 ipaddr->u.a4.mask = 0; 8344#ifdef CONFIG_QETH_IPV6 8345 } else if (proto == QETH_PROT_IPV6){ 8346 QETH_DBF_TEXT(trace, 2, "addrxip6"); 8347 memcpy(&ipaddr->u.a6.addr, addr, 16); 8348 ipaddr->u.a6.pfxlen = 0; 8349#endif 8350 } 8351 ipaddr->type = QETH_IP_TYPE_RXIP; 8352 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG; 8353 ipaddr->del_flags = 0; 8354 } else 8355 return -ENOMEM; 8356 spin_lock_irqsave(&card->ip_lock, flags); 8357 if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) || 8358 __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0)) 8359 rc = -EEXIST; 8360 spin_unlock_irqrestore(&card->ip_lock, flags); 8361 if (rc){ 8362 PRINT_WARN("Cannot add RXIP. Address already exists!\n"); 8363 return rc; 8364 } 8365 if (!qeth_add_ip(card, ipaddr)) 8366 kfree(ipaddr); 8367 qeth_set_ip_addr_list(card); 8368 return 0; 8369} 8370 8371void 8372qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto, 8373 const u8 *addr) 8374{ 8375 struct qeth_ipaddr *ipaddr; 8376 8377 ipaddr = qeth_get_addr_buffer(proto); 8378 if (ipaddr){ 8379 if (proto == QETH_PROT_IPV4){ 8380 QETH_DBF_TEXT(trace, 2, "addrxip4"); 8381 memcpy(&ipaddr->u.a4.addr, addr, 4); 8382 ipaddr->u.a4.mask = 0; 8383#ifdef CONFIG_QETH_IPV6 8384 } else if (proto == QETH_PROT_IPV6){ 8385 QETH_DBF_TEXT(trace, 2, "addrxip6"); 8386 memcpy(&ipaddr->u.a6.addr, addr, 16); 8387 ipaddr->u.a6.pfxlen = 0; 8388#endif 8389 } 8390 ipaddr->type = QETH_IP_TYPE_RXIP; 8391 } else 8392 return; 8393 if (!qeth_delete_ip(card, ipaddr)) 8394 kfree(ipaddr); 8395 qeth_set_ip_addr_list(card); 8396} 8397 8398/** 8399 * IP event handler 8400 */ 8401static int 8402qeth_ip_event(struct notifier_block *this, 8403 unsigned long event,void *ptr) 8404{ 8405 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; 8406 struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev; 8407 struct qeth_ipaddr *addr; 8408 struct qeth_card *card; 8409 8410 QETH_DBF_TEXT(trace,3,"ipevent"); 8411 card = qeth_get_card_from_dev(dev); 8412 if (!card) 8413 return NOTIFY_DONE; 8414 if (card->options.layer2) 8415 return NOTIFY_DONE; 8416 8417 addr = qeth_get_addr_buffer(QETH_PROT_IPV4); 8418 if (addr != NULL) { 8419 addr->u.a4.addr = ifa->ifa_address; 8420 addr->u.a4.mask = ifa->ifa_mask; 8421 addr->type = QETH_IP_TYPE_NORMAL; 8422 } else 8423 goto out; 8424 8425 switch(event) { 8426 case NETDEV_UP: 8427 if (!qeth_add_ip(card, addr)) 8428 kfree(addr); 8429 break; 8430 case NETDEV_DOWN: 8431 if (!qeth_delete_ip(card, addr)) 8432 kfree(addr); 8433 break; 8434 default: 8435 break; 8436 } 8437 qeth_set_ip_addr_list(card); 8438out: 8439 return NOTIFY_DONE; 8440} 8441 8442static struct notifier_block qeth_ip_notifier = { 8443 qeth_ip_event, 8444 NULL, 8445}; 8446 8447#ifdef CONFIG_QETH_IPV6 8448/** 8449 * IPv6 event handler 8450 */ 8451static int 8452qeth_ip6_event(struct notifier_block *this, 8453 unsigned long event,void *ptr) 8454{ 8455 8456 struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr; 8457 struct net_device *dev = (struct net_device *)ifa->idev->dev; 8458 struct qeth_ipaddr *addr; 8459 struct qeth_card *card; 8460 8461 QETH_DBF_TEXT(trace,3,"ip6event"); 8462 8463 card = qeth_get_card_from_dev(dev); 8464 if (!card) 8465 return NOTIFY_DONE; 8466 if (!qeth_is_supported(card, IPA_IPV6)) 8467 return NOTIFY_DONE; 8468 8469 addr = qeth_get_addr_buffer(QETH_PROT_IPV6); 8470 if (addr != NULL) { 8471 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr)); 8472 addr->u.a6.pfxlen = ifa->prefix_len; 8473 addr->type = QETH_IP_TYPE_NORMAL; 8474 } else 8475 goto out; 8476 8477 switch(event) { 8478 case NETDEV_UP: 8479 if (!qeth_add_ip(card, addr)) 8480 kfree(addr); 8481 break; 8482 case NETDEV_DOWN: 8483 if (!qeth_delete_ip(card, addr)) 8484 kfree(addr); 8485 break; 8486 default: 8487 break; 8488 } 8489 qeth_set_ip_addr_list(card); 8490out: 8491 return NOTIFY_DONE; 8492} 8493 8494static struct notifier_block qeth_ip6_notifier = { 8495 qeth_ip6_event, 8496 NULL, 8497}; 8498#endif 8499 8500static int 8501__qeth_reboot_event_card(struct device *dev, void *data) 8502{ 8503 struct qeth_card *card; 8504 8505 card = (struct qeth_card *) dev->driver_data; 8506 qeth_clear_ip_list(card, 0, 0); 8507 qeth_qdio_clear_card(card, 0); 8508 qeth_clear_qdio_buffers(card); 8509 return 0; 8510} 8511 8512static int 8513qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr) 8514{ 8515 int ret; 8516 8517 ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL, 8518 __qeth_reboot_event_card); 8519 return ret ? NOTIFY_BAD : NOTIFY_DONE; 8520} 8521 8522 8523static struct notifier_block qeth_reboot_notifier = { 8524 qeth_reboot_event, 8525 NULL, 8526}; 8527 8528static int 8529qeth_register_notifiers(void) 8530{ 8531 int r; 8532 8533 QETH_DBF_TEXT(trace,5,"regnotif"); 8534 if ((r = register_reboot_notifier(&qeth_reboot_notifier))) 8535 return r; 8536 if ((r = register_inetaddr_notifier(&qeth_ip_notifier))) 8537 goto out_reboot; 8538#ifdef CONFIG_QETH_IPV6 8539 if ((r = register_inet6addr_notifier(&qeth_ip6_notifier))) 8540 goto out_ipv4; 8541#endif 8542 return 0; 8543 8544#ifdef CONFIG_QETH_IPV6 8545out_ipv4: 8546 unregister_inetaddr_notifier(&qeth_ip_notifier); 8547#endif 8548out_reboot: 8549 unregister_reboot_notifier(&qeth_reboot_notifier); 8550 return r; 8551} 8552 8553/** 8554 * unregister all event notifiers 8555 */ 8556static void 8557qeth_unregister_notifiers(void) 8558{ 8559 8560 QETH_DBF_TEXT(trace,5,"unregnot"); 8561 BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier)); 8562 BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier)); 8563#ifdef CONFIG_QETH_IPV6 8564 BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier)); 8565#endif /* QETH_IPV6 */ 8566 8567} 8568 8569#ifdef CONFIG_QETH_IPV6 8570static int 8571qeth_ipv6_init(void) 8572{ 8573 qeth_old_arp_constructor = arp_tbl.constructor; 8574 write_lock_bh(&arp_tbl.lock); 8575 arp_tbl.constructor = qeth_arp_constructor; 8576 write_unlock_bh(&arp_tbl.lock); 8577 8578 arp_direct_ops = (struct neigh_ops*) 8579 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL); 8580 if (!arp_direct_ops) 8581 return -ENOMEM; 8582 8583 memcpy(arp_direct_ops, &arp_direct_ops_template, 8584 sizeof(struct neigh_ops)); 8585 8586 return 0; 8587} 8588 8589static void 8590qeth_ipv6_uninit(void) 8591{ 8592 write_lock_bh(&arp_tbl.lock); 8593 arp_tbl.constructor = qeth_old_arp_constructor; 8594 write_unlock_bh(&arp_tbl.lock); 8595 kfree(arp_direct_ops); 8596} 8597#endif /* CONFIG_QETH_IPV6 */ 8598 8599static void 8600qeth_sysfs_unregister(void) 8601{ 8602 s390_root_dev_unregister(qeth_root_dev); 8603 qeth_remove_driver_attributes(); 8604 ccw_driver_unregister(&qeth_ccw_driver); 8605 ccwgroup_driver_unregister(&qeth_ccwgroup_driver); 8606} 8607 8608/** 8609 * register qeth at sysfs 8610 */ 8611static int 8612qeth_sysfs_register(void) 8613{ 8614 int rc; 8615 8616 rc = ccwgroup_driver_register(&qeth_ccwgroup_driver); 8617 if (rc) 8618 goto out; 8619 8620 rc = ccw_driver_register(&qeth_ccw_driver); 8621 if (rc) 8622 goto out_ccw_driver; 8623 8624 rc = qeth_create_driver_attributes(); 8625 if (rc) 8626 goto out_qeth_attr; 8627 8628 qeth_root_dev = s390_root_dev_register("qeth"); 8629 rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0; 8630 if (!rc) 8631 goto out; 8632 8633 qeth_remove_driver_attributes(); 8634out_qeth_attr: 8635 ccw_driver_unregister(&qeth_ccw_driver); 8636out_ccw_driver: 8637 ccwgroup_driver_unregister(&qeth_ccwgroup_driver); 8638out: 8639 return rc; 8640} 8641 8642/*** 8643 * init function 8644 */ 8645static int __init 8646qeth_init(void) 8647{ 8648 int rc; 8649 8650 PRINT_INFO("loading %s\n", version); 8651 8652 INIT_LIST_HEAD(&qeth_card_list.list); 8653 INIT_LIST_HEAD(&qeth_notify_list); 8654 spin_lock_init(&qeth_notify_lock); 8655 rwlock_init(&qeth_card_list.rwlock); 8656 8657 rc = qeth_register_dbf_views(); 8658 if (rc) 8659 goto out_err; 8660 8661 rc = qeth_sysfs_register(); 8662 if (rc) 8663 goto out_dbf; 8664 8665#ifdef CONFIG_QETH_IPV6 8666 rc = qeth_ipv6_init(); 8667 if (rc) { 8668 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc); 8669 goto out_sysfs; 8670 } 8671#endif /* QETH_IPV6 */ 8672 rc = qeth_register_notifiers(); 8673 if (rc) 8674 goto out_ipv6; 8675 rc = qeth_create_procfs_entries(); 8676 if (rc) 8677 goto out_notifiers; 8678 8679 return rc; 8680 8681out_notifiers: 8682 qeth_unregister_notifiers(); 8683out_ipv6: 8684#ifdef CONFIG_QETH_IPV6 8685 qeth_ipv6_uninit(); 8686out_sysfs: 8687#endif /* QETH_IPV6 */ 8688 qeth_sysfs_unregister(); 8689out_dbf: 8690 qeth_unregister_dbf_views(); 8691out_err: 8692 PRINT_ERR("Initialization failed with code %d\n", rc); 8693 return rc; 8694} 8695 8696static void 8697__exit qeth_exit(void) 8698{ 8699 struct qeth_card *card, *tmp; 8700 unsigned long flags; 8701 8702 QETH_DBF_TEXT(trace,1, "cleanup."); 8703 8704 /* 8705 * Weed would not need to clean up our devices here, because the 8706 * common device layer calls qeth_remove_device for each device 8707 * as soon as we unregister our driver (done in qeth_sysfs_unregister). 8708 * But we do cleanup here so we can do a "soft" shutdown of our cards. 8709 * qeth_remove_device called by the common device layer would otherwise 8710 * do a "hard" shutdown (card->use_hard_stop is set to one in 8711 * qeth_remove_device). 8712 */ 8713again: 8714 read_lock_irqsave(&qeth_card_list.rwlock, flags); 8715 list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){ 8716 read_unlock_irqrestore(&qeth_card_list.rwlock, flags); 8717 qeth_set_offline(card->gdev); 8718 qeth_remove_device(card->gdev); 8719 goto again; 8720 } 8721 read_unlock_irqrestore(&qeth_card_list.rwlock, flags); 8722#ifdef CONFIG_QETH_IPV6 8723 qeth_ipv6_uninit(); 8724#endif 8725 qeth_unregister_notifiers(); 8726 qeth_remove_procfs_entries(); 8727 qeth_sysfs_unregister(); 8728 qeth_unregister_dbf_views(); 8729 printk("qeth: removed\n"); 8730} 8731 8732EXPORT_SYMBOL(qeth_osn_register); 8733EXPORT_SYMBOL(qeth_osn_deregister); 8734EXPORT_SYMBOL(qeth_osn_assist); 8735module_init(qeth_init); 8736module_exit(qeth_exit); 8737MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>"); 8738MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \ 8739 "Copyright 2000,2003 IBM Corporation\n"); 8740 8741MODULE_LICENSE("GPL"); 8742