2 * drivers/s390/net/qeth_core_main.c
4 * Copyright IBM Corp. 2007, 2009
5 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
6 * Frank Pavlic <fpavlic@de.ibm.com>,
7 * Thomas Spatzier <tspat@de.ibm.com>,
8 * Frank Blaschka <frank.blaschka@de.ibm.com>
11 #define KMSG_COMPONENT "qeth"
12 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/string.h>
17 #include <linux/errno.h>
18 #include <linux/kernel.h>
20 #include <linux/tcp.h>
21 #include <linux/mii.h>
22 #include <linux/kthread.h>
23 #include <linux/slab.h>
25 #include <asm/ebcdic.h>
28 #include "qeth_core.h"
30 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
31 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
33 [QETH_DBF_SETUP] = {"qeth_setup",
34 8, 1, 8, 5, &debug_hex_ascii_view, NULL},
35 [QETH_DBF_MSG] = {"qeth_msg",
36 8, 1, 128, 3, &debug_sprintf_view, NULL},
37 [QETH_DBF_CTRL] = {"qeth_control",
38 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
40 EXPORT_SYMBOL_GPL(qeth_dbf);
42 struct qeth_card_list_struct qeth_core_card_list;
43 EXPORT_SYMBOL_GPL(qeth_core_card_list);
44 struct kmem_cache *qeth_core_header_cache;
45 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
47 static struct device *qeth_core_root_dev;
48 static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY;
49 static struct lock_class_key qdio_out_skb_queue_key;
51 static void qeth_send_control_data_cb(struct qeth_channel *,
52 struct qeth_cmd_buffer *);
53 static int qeth_issue_next_read(struct qeth_card *);
54 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
55 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
56 static void qeth_free_buffer_pool(struct qeth_card *);
57 static int qeth_qdio_establish(struct qeth_card *);
60 static inline const char *qeth_get_cardname(struct qeth_card *card)
62 if (card->info.guestlan) {
63 switch (card->info.type) {
64 case QETH_CARD_TYPE_OSD:
65 return " Guest LAN QDIO";
66 case QETH_CARD_TYPE_IQD:
67 return " Guest LAN Hiper";
68 case QETH_CARD_TYPE_OSM:
69 return " Guest LAN QDIO - OSM";
70 case QETH_CARD_TYPE_OSX:
71 return " Guest LAN QDIO - OSX";
76 switch (card->info.type) {
77 case QETH_CARD_TYPE_OSD:
78 return " OSD Express";
79 case QETH_CARD_TYPE_IQD:
80 return " HiperSockets";
81 case QETH_CARD_TYPE_OSN:
83 case QETH_CARD_TYPE_OSM:
85 case QETH_CARD_TYPE_OSX:
94 /* max length to be returned: 14 */
95 const char *qeth_get_cardname_short(struct qeth_card *card)
97 if (card->info.guestlan) {
98 switch (card->info.type) {
99 case QETH_CARD_TYPE_OSD:
100 return "GuestLAN QDIO";
101 case QETH_CARD_TYPE_IQD:
102 return "GuestLAN Hiper";
103 case QETH_CARD_TYPE_OSM:
104 return "GuestLAN OSM";
105 case QETH_CARD_TYPE_OSX:
106 return "GuestLAN OSX";
111 switch (card->info.type) {
112 case QETH_CARD_TYPE_OSD:
113 switch (card->info.link_type) {
114 case QETH_LINK_TYPE_FAST_ETH:
116 case QETH_LINK_TYPE_HSTR:
118 case QETH_LINK_TYPE_GBIT_ETH:
120 case QETH_LINK_TYPE_10GBIT_ETH:
122 case QETH_LINK_TYPE_LANE_ETH100:
123 return "OSD_FE_LANE";
124 case QETH_LINK_TYPE_LANE_TR:
125 return "OSD_TR_LANE";
126 case QETH_LINK_TYPE_LANE_ETH1000:
127 return "OSD_GbE_LANE";
128 case QETH_LINK_TYPE_LANE:
129 return "OSD_ATM_LANE";
131 return "OSD_Express";
133 case QETH_CARD_TYPE_IQD:
134 return "HiperSockets";
135 case QETH_CARD_TYPE_OSN:
137 case QETH_CARD_TYPE_OSM:
139 case QETH_CARD_TYPE_OSX:
148 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
149 int clear_start_mask)
153 spin_lock_irqsave(&card->thread_mask_lock, flags);
154 card->thread_allowed_mask = threads;
155 if (clear_start_mask)
156 card->thread_start_mask &= threads;
157 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
158 wake_up(&card->wait_q);
160 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
162 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
167 spin_lock_irqsave(&card->thread_mask_lock, flags);
168 rc = (card->thread_running_mask & threads);
169 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
172 EXPORT_SYMBOL_GPL(qeth_threads_running);
174 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
176 return wait_event_interruptible(card->wait_q,
177 qeth_threads_running(card, threads) == 0);
179 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
181 void qeth_clear_working_pool_list(struct qeth_card *card)
183 struct qeth_buffer_pool_entry *pool_entry, *tmp;
185 QETH_CARD_TEXT(card, 5, "clwrklst");
186 list_for_each_entry_safe(pool_entry, tmp,
187 &card->qdio.in_buf_pool.entry_list, list){
188 list_del(&pool_entry->list);
191 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
193 static int qeth_alloc_buffer_pool(struct qeth_card *card)
195 struct qeth_buffer_pool_entry *pool_entry;
199 QETH_CARD_TEXT(card, 5, "alocpool");
200 for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
201 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
203 qeth_free_buffer_pool(card);
206 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
207 ptr = (void *) __get_free_page(GFP_KERNEL);
210 free_page((unsigned long)
211 pool_entry->elements[--j]);
213 qeth_free_buffer_pool(card);
216 pool_entry->elements[j] = ptr;
218 list_add(&pool_entry->init_list,
219 &card->qdio.init_pool.entry_list);
224 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
226 QETH_CARD_TEXT(card, 2, "realcbp");
228 if ((card->state != CARD_STATE_DOWN) &&
229 (card->state != CARD_STATE_RECOVER))
232 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
233 qeth_clear_working_pool_list(card);
234 qeth_free_buffer_pool(card);
235 card->qdio.in_buf_pool.buf_count = bufcnt;
236 card->qdio.init_pool.buf_count = bufcnt;
237 return qeth_alloc_buffer_pool(card);
239 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
241 static int qeth_issue_next_read(struct qeth_card *card)
244 struct qeth_cmd_buffer *iob;
246 QETH_CARD_TEXT(card, 5, "issnxrd");
247 if (card->read.state != CH_STATE_UP)
249 iob = qeth_get_buffer(&card->read);
251 dev_warn(&card->gdev->dev, "The qeth device driver "
252 "failed to recover an error on the device\n");
253 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
254 "available\n", dev_name(&card->gdev->dev));
257 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
258 QETH_CARD_TEXT(card, 6, "noirqpnd");
259 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
262 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
263 "rc=%i\n", dev_name(&card->gdev->dev), rc);
264 atomic_set(&card->read.irq_pending, 0);
265 card->read_or_write_problem = 1;
266 qeth_schedule_recovery(card);
267 wake_up(&card->wait_q);
272 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
274 struct qeth_reply *reply;
276 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
278 atomic_set(&reply->refcnt, 1);
279 atomic_set(&reply->received, 0);
285 static void qeth_get_reply(struct qeth_reply *reply)
287 WARN_ON(atomic_read(&reply->refcnt) <= 0);
288 atomic_inc(&reply->refcnt);
291 static void qeth_put_reply(struct qeth_reply *reply)
293 WARN_ON(atomic_read(&reply->refcnt) <= 0);
294 if (atomic_dec_and_test(&reply->refcnt))
298 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
299 struct qeth_card *card)
302 int com = cmd->hdr.command;
303 ipa_name = qeth_get_ipa_cmd_name(com);
305 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
307 ipa_name, com, dev_name(&card->gdev->dev),
308 QETH_CARD_IFNAME(card), rc,
309 qeth_get_ipa_msg(rc));
311 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
312 ipa_name, com, dev_name(&card->gdev->dev),
313 QETH_CARD_IFNAME(card));
316 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
317 struct qeth_cmd_buffer *iob)
319 struct qeth_ipa_cmd *cmd = NULL;
321 QETH_CARD_TEXT(card, 5, "chkipad");
322 if (IS_IPA(iob->data)) {
323 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
324 if (IS_IPA_REPLY(cmd)) {
325 if (cmd->hdr.command != IPA_CMD_SETCCID &&
326 cmd->hdr.command != IPA_CMD_DELCCID &&
327 cmd->hdr.command != IPA_CMD_MODCCID &&
328 cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
329 qeth_issue_ipa_msg(cmd,
330 cmd->hdr.return_code, card);
333 switch (cmd->hdr.command) {
334 case IPA_CMD_STOPLAN:
335 dev_warn(&card->gdev->dev,
336 "The link for interface %s on CHPID"
338 QETH_CARD_IFNAME(card),
340 card->lan_online = 0;
341 if (card->dev && netif_carrier_ok(card->dev))
342 netif_carrier_off(card->dev);
344 case IPA_CMD_STARTLAN:
345 dev_info(&card->gdev->dev,
346 "The link for %s on CHPID 0x%X has"
348 QETH_CARD_IFNAME(card),
350 netif_carrier_on(card->dev);
351 card->lan_online = 1;
352 qeth_schedule_recovery(card);
354 case IPA_CMD_MODCCID:
356 case IPA_CMD_REGISTER_LOCAL_ADDR:
357 QETH_CARD_TEXT(card, 3, "irla");
359 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
360 QETH_CARD_TEXT(card, 3, "urla");
363 QETH_DBF_MESSAGE(2, "Received data is IPA "
364 "but not a reply!\n");
372 void qeth_clear_ipacmd_list(struct qeth_card *card)
374 struct qeth_reply *reply, *r;
377 QETH_CARD_TEXT(card, 4, "clipalst");
379 spin_lock_irqsave(&card->lock, flags);
380 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
381 qeth_get_reply(reply);
383 atomic_inc(&reply->received);
384 list_del_init(&reply->list);
385 wake_up(&reply->wait_q);
386 qeth_put_reply(reply);
388 spin_unlock_irqrestore(&card->lock, flags);
389 atomic_set(&card->write.irq_pending, 0);
391 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
393 static int qeth_check_idx_response(struct qeth_card *card,
394 unsigned char *buffer)
399 QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
400 if ((buffer[2] & 0xc0) == 0xc0) {
401 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
402 "with cause code 0x%02x%s\n",
404 ((buffer[4] == 0x22) ?
405 " -- try another portname" : ""));
406 QETH_CARD_TEXT(card, 2, "ckidxres");
407 QETH_CARD_TEXT(card, 2, " idxterm");
408 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
409 if (buffer[4] == 0xf6) {
410 dev_err(&card->gdev->dev,
411 "The qeth device is not configured "
412 "for the OSI layer required by z/VM\n");
420 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
423 struct qeth_card *card;
425 card = CARD_FROM_CDEV(channel->ccwdev);
426 QETH_CARD_TEXT(card, 4, "setupccw");
427 if (channel == &card->read)
428 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
430 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
431 channel->ccw.count = len;
432 channel->ccw.cda = (__u32) __pa(iob);
435 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
439 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
440 index = channel->io_buf_no;
442 if (channel->iob[index].state == BUF_STATE_FREE) {
443 channel->iob[index].state = BUF_STATE_LOCKED;
444 channel->io_buf_no = (channel->io_buf_no + 1) %
446 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
447 return channel->iob + index;
449 index = (index + 1) % QETH_CMD_BUFFER_NO;
450 } while (index != channel->io_buf_no);
455 void qeth_release_buffer(struct qeth_channel *channel,
456 struct qeth_cmd_buffer *iob)
460 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
461 spin_lock_irqsave(&channel->iob_lock, flags);
462 memset(iob->data, 0, QETH_BUFSIZE);
463 iob->state = BUF_STATE_FREE;
464 iob->callback = qeth_send_control_data_cb;
466 spin_unlock_irqrestore(&channel->iob_lock, flags);
468 EXPORT_SYMBOL_GPL(qeth_release_buffer);
470 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
472 struct qeth_cmd_buffer *buffer = NULL;
475 spin_lock_irqsave(&channel->iob_lock, flags);
476 buffer = __qeth_get_buffer(channel);
477 spin_unlock_irqrestore(&channel->iob_lock, flags);
481 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
483 struct qeth_cmd_buffer *buffer;
484 wait_event(channel->wait_q,
485 ((buffer = qeth_get_buffer(channel)) != NULL));
488 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
490 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
494 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
495 qeth_release_buffer(channel, &channel->iob[cnt]);
497 channel->io_buf_no = 0;
499 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
501 static void qeth_send_control_data_cb(struct qeth_channel *channel,
502 struct qeth_cmd_buffer *iob)
504 struct qeth_card *card;
505 struct qeth_reply *reply, *r;
506 struct qeth_ipa_cmd *cmd;
511 card = CARD_FROM_CDEV(channel->ccwdev);
512 QETH_CARD_TEXT(card, 4, "sndctlcb");
513 rc = qeth_check_idx_response(card, iob->data);
518 qeth_clear_ipacmd_list(card);
519 qeth_schedule_recovery(card);
525 cmd = qeth_check_ipa_data(card, iob);
526 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
528 /*in case of OSN : check if cmd is set */
529 if (card->info.type == QETH_CARD_TYPE_OSN &&
531 cmd->hdr.command != IPA_CMD_STARTLAN &&
532 card->osn_info.assist_cb != NULL) {
533 card->osn_info.assist_cb(card->dev, cmd);
537 spin_lock_irqsave(&card->lock, flags);
538 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
539 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
540 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
541 qeth_get_reply(reply);
542 list_del_init(&reply->list);
543 spin_unlock_irqrestore(&card->lock, flags);
545 if (reply->callback != NULL) {
547 reply->offset = (__u16)((char *)cmd -
549 keep_reply = reply->callback(card,
553 keep_reply = reply->callback(card,
558 reply->rc = (u16) cmd->hdr.return_code;
562 spin_lock_irqsave(&card->lock, flags);
563 list_add_tail(&reply->list,
564 &card->cmd_waiter_list);
565 spin_unlock_irqrestore(&card->lock, flags);
567 atomic_inc(&reply->received);
568 wake_up(&reply->wait_q);
570 qeth_put_reply(reply);
574 spin_unlock_irqrestore(&card->lock, flags);
576 memcpy(&card->seqno.pdu_hdr_ack,
577 QETH_PDU_HEADER_SEQ_NO(iob->data),
579 qeth_release_buffer(channel, iob);
582 static int qeth_setup_channel(struct qeth_channel *channel)
586 QETH_DBF_TEXT(SETUP, 2, "setupch");
587 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
588 channel->iob[cnt].data =
589 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
590 if (channel->iob[cnt].data == NULL)
592 channel->iob[cnt].state = BUF_STATE_FREE;
593 channel->iob[cnt].channel = channel;
594 channel->iob[cnt].callback = qeth_send_control_data_cb;
595 channel->iob[cnt].rc = 0;
597 if (cnt < QETH_CMD_BUFFER_NO) {
599 kfree(channel->iob[cnt].data);
603 channel->io_buf_no = 0;
604 atomic_set(&channel->irq_pending, 0);
605 spin_lock_init(&channel->iob_lock);
607 init_waitqueue_head(&channel->wait_q);
611 static int qeth_set_thread_start_bit(struct qeth_card *card,
612 unsigned long thread)
616 spin_lock_irqsave(&card->thread_mask_lock, flags);
617 if (!(card->thread_allowed_mask & thread) ||
618 (card->thread_start_mask & thread)) {
619 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
622 card->thread_start_mask |= thread;
623 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
627 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
631 spin_lock_irqsave(&card->thread_mask_lock, flags);
632 card->thread_start_mask &= ~thread;
633 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
634 wake_up(&card->wait_q);
636 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
638 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
642 spin_lock_irqsave(&card->thread_mask_lock, flags);
643 card->thread_running_mask &= ~thread;
644 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
645 wake_up(&card->wait_q);
647 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
649 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
654 spin_lock_irqsave(&card->thread_mask_lock, flags);
655 if (card->thread_start_mask & thread) {
656 if ((card->thread_allowed_mask & thread) &&
657 !(card->thread_running_mask & thread)) {
659 card->thread_start_mask &= ~thread;
660 card->thread_running_mask |= thread;
664 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
668 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
672 wait_event(card->wait_q,
673 (rc = __qeth_do_run_thread(card, thread)) >= 0);
676 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
678 void qeth_schedule_recovery(struct qeth_card *card)
680 QETH_CARD_TEXT(card, 2, "startrec");
681 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
682 schedule_work(&card->kernel_thread_starter);
684 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
686 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
690 struct qeth_card *card;
692 sense = (char *) irb->ecw;
693 cstat = irb->scsw.cmd.cstat;
694 dstat = irb->scsw.cmd.dstat;
695 card = CARD_FROM_CDEV(cdev);
697 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
698 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
699 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
700 QETH_CARD_TEXT(card, 2, "CGENCHK");
701 dev_warn(&cdev->dev, "The qeth device driver "
702 "failed to recover an error on the device\n");
703 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
704 dev_name(&cdev->dev), dstat, cstat);
705 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
710 if (dstat & DEV_STAT_UNIT_CHECK) {
711 if (sense[SENSE_RESETTING_EVENT_BYTE] &
712 SENSE_RESETTING_EVENT_FLAG) {
713 QETH_CARD_TEXT(card, 2, "REVIND");
716 if (sense[SENSE_COMMAND_REJECT_BYTE] &
717 SENSE_COMMAND_REJECT_FLAG) {
718 QETH_CARD_TEXT(card, 2, "CMDREJi");
721 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
722 QETH_CARD_TEXT(card, 2, "AFFE");
725 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
726 QETH_CARD_TEXT(card, 2, "ZEROSEN");
729 QETH_CARD_TEXT(card, 2, "DGENCHK");
735 static long __qeth_check_irb_error(struct ccw_device *cdev,
736 unsigned long intparm, struct irb *irb)
738 struct qeth_card *card;
740 card = CARD_FROM_CDEV(cdev);
745 switch (PTR_ERR(irb)) {
747 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
748 dev_name(&cdev->dev));
749 QETH_CARD_TEXT(card, 2, "ckirberr");
750 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
753 dev_warn(&cdev->dev, "A hardware operation timed out"
755 QETH_CARD_TEXT(card, 2, "ckirberr");
756 QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT);
757 if (intparm == QETH_RCD_PARM) {
758 if (card && (card->data.ccwdev == cdev)) {
759 card->data.state = CH_STATE_DOWN;
760 wake_up(&card->wait_q);
765 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
766 dev_name(&cdev->dev), PTR_ERR(irb));
767 QETH_CARD_TEXT(card, 2, "ckirberr");
768 QETH_CARD_TEXT(card, 2, " rc???");
773 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
778 struct qeth_cmd_buffer *buffer;
779 struct qeth_channel *channel;
780 struct qeth_card *card;
781 struct qeth_cmd_buffer *iob;
784 if (__qeth_check_irb_error(cdev, intparm, irb))
786 cstat = irb->scsw.cmd.cstat;
787 dstat = irb->scsw.cmd.dstat;
789 card = CARD_FROM_CDEV(cdev);
793 QETH_CARD_TEXT(card, 5, "irq");
795 if (card->read.ccwdev == cdev) {
796 channel = &card->read;
797 QETH_CARD_TEXT(card, 5, "read");
798 } else if (card->write.ccwdev == cdev) {
799 channel = &card->write;
800 QETH_CARD_TEXT(card, 5, "write");
802 channel = &card->data;
803 QETH_CARD_TEXT(card, 5, "data");
805 atomic_set(&channel->irq_pending, 0);
807 if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
808 channel->state = CH_STATE_STOPPED;
810 if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
811 channel->state = CH_STATE_HALTED;
813 /*let's wake up immediately on data channel*/
814 if ((channel == &card->data) && (intparm != 0) &&
815 (intparm != QETH_RCD_PARM))
818 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
819 QETH_CARD_TEXT(card, 6, "clrchpar");
820 /* we don't have to handle this further */
823 if (intparm == QETH_HALT_CHANNEL_PARM) {
824 QETH_CARD_TEXT(card, 6, "hltchpar");
825 /* we don't have to handle this further */
828 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
829 (dstat & DEV_STAT_UNIT_CHECK) ||
831 if (irb->esw.esw0.erw.cons) {
832 dev_warn(&channel->ccwdev->dev,
833 "The qeth device driver failed to recover "
834 "an error on the device\n");
835 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
837 dev_name(&channel->ccwdev->dev), cstat, dstat);
838 print_hex_dump(KERN_WARNING, "qeth: irb ",
839 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
840 print_hex_dump(KERN_WARNING, "qeth: sense data ",
841 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
843 if (intparm == QETH_RCD_PARM) {
844 channel->state = CH_STATE_DOWN;
847 rc = qeth_get_problem(cdev, irb);
849 qeth_clear_ipacmd_list(card);
850 qeth_schedule_recovery(card);
855 if (intparm == QETH_RCD_PARM) {
856 channel->state = CH_STATE_RCD_DONE;
860 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
861 buffer->state = BUF_STATE_PROCESSED;
863 if (channel == &card->data)
865 if (channel == &card->read &&
866 channel->state == CH_STATE_UP)
867 qeth_issue_next_read(card);
870 index = channel->buf_no;
871 while (iob[index].state == BUF_STATE_PROCESSED) {
872 if (iob[index].callback != NULL)
873 iob[index].callback(channel, iob + index);
875 index = (index + 1) % QETH_CMD_BUFFER_NO;
877 channel->buf_no = index;
879 wake_up(&card->wait_q);
883 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
884 struct qeth_qdio_out_buffer *buf)
889 /* is PCI flag set on buffer? */
890 if (buf->buffer->element[0].flags & 0x40)
891 atomic_dec(&queue->set_pci_flags_count);
893 skb = skb_dequeue(&buf->skb_list);
895 atomic_dec(&skb->users);
896 dev_kfree_skb_any(skb);
897 skb = skb_dequeue(&buf->skb_list);
899 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
900 if (buf->buffer->element[i].addr && buf->is_header[i])
901 kmem_cache_free(qeth_core_header_cache,
902 buf->buffer->element[i].addr);
903 buf->is_header[i] = 0;
904 buf->buffer->element[i].length = 0;
905 buf->buffer->element[i].addr = NULL;
906 buf->buffer->element[i].flags = 0;
908 buf->buffer->element[15].flags = 0;
909 buf->next_element_to_fill = 0;
910 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
913 void qeth_clear_qdio_buffers(struct qeth_card *card)
917 QETH_CARD_TEXT(card, 2, "clearqdbf");
918 /* clear outbound buffers to free skbs */
919 for (i = 0; i < card->qdio.no_out_queues; ++i)
920 if (card->qdio.out_qs[i]) {
921 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
922 qeth_clear_output_buffer(card->qdio.out_qs[i],
923 &card->qdio.out_qs[i]->bufs[j]);
926 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
928 static void qeth_free_buffer_pool(struct qeth_card *card)
930 struct qeth_buffer_pool_entry *pool_entry, *tmp;
932 list_for_each_entry_safe(pool_entry, tmp,
933 &card->qdio.init_pool.entry_list, init_list){
934 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
935 free_page((unsigned long)pool_entry->elements[i]);
936 list_del(&pool_entry->init_list);
941 static void qeth_free_qdio_buffers(struct qeth_card *card)
945 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
946 QETH_QDIO_UNINITIALIZED)
948 kfree(card->qdio.in_q);
949 card->qdio.in_q = NULL;
950 /* inbound buffer pool */
951 qeth_free_buffer_pool(card);
952 /* free outbound qdio_qs */
953 if (card->qdio.out_qs) {
954 for (i = 0; i < card->qdio.no_out_queues; ++i) {
955 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
956 qeth_clear_output_buffer(card->qdio.out_qs[i],
957 &card->qdio.out_qs[i]->bufs[j]);
958 kfree(card->qdio.out_qs[i]);
960 kfree(card->qdio.out_qs);
961 card->qdio.out_qs = NULL;
965 static void qeth_clean_channel(struct qeth_channel *channel)
969 QETH_DBF_TEXT(SETUP, 2, "freech");
970 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
971 kfree(channel->iob[cnt].data);
974 static void qeth_get_channel_path_desc(struct qeth_card *card)
976 struct ccw_device *ccwdev;
977 struct channelPath_dsc {
988 QETH_DBF_TEXT(SETUP, 2, "chp_desc");
990 ccwdev = card->data.ccwdev;
991 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
992 if (chp_dsc != NULL) {
993 /* CHPP field bit 6 == 1 -> single queue */
994 if ((chp_dsc->chpp & 0x02) == 0x02) {
995 if ((atomic_read(&card->qdio.state) !=
996 QETH_QDIO_UNINITIALIZED) &&
997 (card->qdio.no_out_queues == 4))
998 /* change from 4 to 1 outbound queues */
999 qeth_free_qdio_buffers(card);
1000 card->qdio.no_out_queues = 1;
1001 if (card->qdio.default_out_queue != 0)
1002 dev_info(&card->gdev->dev,
1003 "Priority Queueing not supported\n");
1004 card->qdio.default_out_queue = 0;
1006 if ((atomic_read(&card->qdio.state) !=
1007 QETH_QDIO_UNINITIALIZED) &&
1008 (card->qdio.no_out_queues == 1)) {
1009 /* change from 1 to 4 outbound queues */
1010 qeth_free_qdio_buffers(card);
1011 card->qdio.default_out_queue = 2;
1013 card->qdio.no_out_queues = 4;
1015 card->info.func_level = 0x4100 + chp_dsc->desc;
1018 QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
1019 QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
1023 static void qeth_init_qdio_info(struct qeth_card *card)
1025 QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1026 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1028 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1029 if (card->info.type == QETH_CARD_TYPE_IQD)
1030 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
1032 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1033 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1034 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1035 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1038 static void qeth_set_intial_options(struct qeth_card *card)
1040 card->options.route4.type = NO_ROUTER;
1041 card->options.route6.type = NO_ROUTER;
1042 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1043 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1044 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1045 card->options.fake_broadcast = 0;
1046 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1047 card->options.performance_stats = 0;
1048 card->options.rx_sg_cb = QETH_RX_SG_CB;
1049 card->options.isolation = ISOLATION_MODE_NONE;
1052 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1054 unsigned long flags;
1057 spin_lock_irqsave(&card->thread_mask_lock, flags);
1058 QETH_CARD_TEXT_(card, 4, " %02x%02x%02x",
1059 (u8) card->thread_start_mask,
1060 (u8) card->thread_allowed_mask,
1061 (u8) card->thread_running_mask);
1062 rc = (card->thread_start_mask & thread);
1063 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1067 static void qeth_start_kernel_thread(struct work_struct *work)
1069 struct qeth_card *card = container_of(work, struct qeth_card,
1070 kernel_thread_starter);
1071 QETH_CARD_TEXT(card , 2, "strthrd");
1073 if (card->read.state != CH_STATE_UP &&
1074 card->write.state != CH_STATE_UP)
1076 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1077 kthread_run(card->discipline.recover, (void *) card,
1081 static int qeth_setup_card(struct qeth_card *card)
1084 QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1085 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1087 card->read.state = CH_STATE_DOWN;
1088 card->write.state = CH_STATE_DOWN;
1089 card->data.state = CH_STATE_DOWN;
1090 card->state = CARD_STATE_DOWN;
1091 card->lan_online = 0;
1092 card->read_or_write_problem = 0;
1094 spin_lock_init(&card->vlanlock);
1095 spin_lock_init(&card->mclock);
1096 card->vlangrp = NULL;
1097 spin_lock_init(&card->lock);
1098 spin_lock_init(&card->ip_lock);
1099 spin_lock_init(&card->thread_mask_lock);
1100 mutex_init(&card->conf_mutex);
1101 mutex_init(&card->discipline_mutex);
1102 card->thread_start_mask = 0;
1103 card->thread_allowed_mask = 0;
1104 card->thread_running_mask = 0;
1105 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1106 INIT_LIST_HEAD(&card->ip_list);
1107 INIT_LIST_HEAD(card->ip_tbd_list);
1108 INIT_LIST_HEAD(&card->cmd_waiter_list);
1109 init_waitqueue_head(&card->wait_q);
1110 /* intial options */
1111 qeth_set_intial_options(card);
1112 /* IP address takeover */
1113 INIT_LIST_HEAD(&card->ipato.entries);
1114 card->ipato.enabled = 0;
1115 card->ipato.invert4 = 0;
1116 card->ipato.invert6 = 0;
1117 /* init QDIO stuff */
1118 qeth_init_qdio_info(card);
1122 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1124 struct qeth_card *card = container_of(slr, struct qeth_card,
1125 qeth_service_level);
1126 if (card->info.mcl_level[0])
1127 seq_printf(m, "qeth: %s firmware level %s\n",
1128 CARD_BUS_ID(card), card->info.mcl_level);
1131 static struct qeth_card *qeth_alloc_card(void)
1133 struct qeth_card *card;
1135 QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1136 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1139 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1140 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1141 if (!card->ip_tbd_list) {
1142 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1145 if (qeth_setup_channel(&card->read))
1147 if (qeth_setup_channel(&card->write))
1149 card->options.layer2 = -1;
1150 card->qeth_service_level.seq_print = qeth_core_sl_print;
1151 register_service_level(&card->qeth_service_level);
1155 qeth_clean_channel(&card->read);
1157 kfree(card->ip_tbd_list);
1164 static int qeth_determine_card_type(struct qeth_card *card)
1168 QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1170 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1171 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1172 while (known_devices[i][QETH_DEV_MODEL_IND]) {
1173 if ((CARD_RDEV(card)->id.dev_type ==
1174 known_devices[i][QETH_DEV_TYPE_IND]) &&
1175 (CARD_RDEV(card)->id.dev_model ==
1176 known_devices[i][QETH_DEV_MODEL_IND])) {
1177 card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
1178 card->qdio.no_out_queues =
1179 known_devices[i][QETH_QUEUE_NO_IND];
1180 card->info.is_multicast_different =
1181 known_devices[i][QETH_MULTICAST_IND];
1182 qeth_get_channel_path_desc(card);
1187 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1188 dev_err(&card->gdev->dev, "The adapter hardware is of an "
1193 static int qeth_clear_channel(struct qeth_channel *channel)
1195 unsigned long flags;
1196 struct qeth_card *card;
1199 card = CARD_FROM_CDEV(channel->ccwdev);
1200 QETH_CARD_TEXT(card, 3, "clearch");
1201 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1202 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1203 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1207 rc = wait_event_interruptible_timeout(card->wait_q,
1208 channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1209 if (rc == -ERESTARTSYS)
1211 if (channel->state != CH_STATE_STOPPED)
1213 channel->state = CH_STATE_DOWN;
1217 static int qeth_halt_channel(struct qeth_channel *channel)
1219 unsigned long flags;
1220 struct qeth_card *card;
1223 card = CARD_FROM_CDEV(channel->ccwdev);
1224 QETH_CARD_TEXT(card, 3, "haltch");
1225 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1226 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1227 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1231 rc = wait_event_interruptible_timeout(card->wait_q,
1232 channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1233 if (rc == -ERESTARTSYS)
1235 if (channel->state != CH_STATE_HALTED)
1240 static int qeth_halt_channels(struct qeth_card *card)
1242 int rc1 = 0, rc2 = 0, rc3 = 0;
1244 QETH_CARD_TEXT(card, 3, "haltchs");
1245 rc1 = qeth_halt_channel(&card->read);
1246 rc2 = qeth_halt_channel(&card->write);
1247 rc3 = qeth_halt_channel(&card->data);
1255 static int qeth_clear_channels(struct qeth_card *card)
1257 int rc1 = 0, rc2 = 0, rc3 = 0;
1259 QETH_CARD_TEXT(card, 3, "clearchs");
1260 rc1 = qeth_clear_channel(&card->read);
1261 rc2 = qeth_clear_channel(&card->write);
1262 rc3 = qeth_clear_channel(&card->data);
1270 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1274 QETH_CARD_TEXT(card, 3, "clhacrd");
1277 rc = qeth_halt_channels(card);
1280 return qeth_clear_channels(card);
1283 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1287 QETH_CARD_TEXT(card, 3, "qdioclr");
1288 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1289 QETH_QDIO_CLEANING)) {
1290 case QETH_QDIO_ESTABLISHED:
1291 if (card->info.type == QETH_CARD_TYPE_IQD)
1292 rc = qdio_shutdown(CARD_DDEV(card),
1293 QDIO_FLAG_CLEANUP_USING_HALT);
1295 rc = qdio_shutdown(CARD_DDEV(card),
1296 QDIO_FLAG_CLEANUP_USING_CLEAR);
1298 QETH_CARD_TEXT_(card, 3, "1err%d", rc);
1299 qdio_free(CARD_DDEV(card));
1300 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1302 case QETH_QDIO_CLEANING:
1307 rc = qeth_clear_halt_card(card, use_halt);
1309 QETH_CARD_TEXT_(card, 3, "2err%d", rc);
1310 card->state = CARD_STATE_DOWN;
1313 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1315 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1321 struct qeth_channel *channel = &card->data;
1322 unsigned long flags;
1325 * scan for RCD command in extended SenseID data
1327 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1328 if (!ciw || ciw->cmd == 0)
1330 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1334 channel->ccw.cmd_code = ciw->cmd;
1335 channel->ccw.cda = (__u32) __pa(rcd_buf);
1336 channel->ccw.count = ciw->count;
1337 channel->ccw.flags = CCW_FLAG_SLI;
1338 channel->state = CH_STATE_RCD;
1339 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1340 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1341 QETH_RCD_PARM, LPM_ANYPATH, 0,
1343 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1345 wait_event(card->wait_q,
1346 (channel->state == CH_STATE_RCD_DONE ||
1347 channel->state == CH_STATE_DOWN));
1348 if (channel->state == CH_STATE_DOWN)
1351 channel->state = CH_STATE_DOWN;
1357 *length = ciw->count;
1363 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1365 QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1366 card->info.chpid = prcd[30];
1367 card->info.unit_addr2 = prcd[31];
1368 card->info.cula = prcd[63];
1369 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1370 (prcd[0x11] == _ascebc['M']));
1373 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1375 QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1377 if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) {
1378 card->info.blkt.time_total = 250;
1379 card->info.blkt.inter_packet = 5;
1380 card->info.blkt.inter_packet_jumbo = 15;
1382 card->info.blkt.time_total = 0;
1383 card->info.blkt.inter_packet = 0;
1384 card->info.blkt.inter_packet_jumbo = 0;
1388 static void qeth_init_tokens(struct qeth_card *card)
1390 card->token.issuer_rm_w = 0x00010103UL;
1391 card->token.cm_filter_w = 0x00010108UL;
1392 card->token.cm_connection_w = 0x0001010aUL;
1393 card->token.ulp_filter_w = 0x0001010bUL;
1394 card->token.ulp_connection_w = 0x0001010dUL;
1397 static void qeth_init_func_level(struct qeth_card *card)
1399 switch (card->info.type) {
1400 case QETH_CARD_TYPE_IQD:
1401 card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
1403 case QETH_CARD_TYPE_OSD:
1404 case QETH_CARD_TYPE_OSN:
1405 card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
1412 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1413 void (*idx_reply_cb)(struct qeth_channel *,
1414 struct qeth_cmd_buffer *))
1416 struct qeth_cmd_buffer *iob;
1417 unsigned long flags;
1419 struct qeth_card *card;
1421 QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1422 card = CARD_FROM_CDEV(channel->ccwdev);
1423 iob = qeth_get_buffer(channel);
1424 iob->callback = idx_reply_cb;
1425 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1426 channel->ccw.count = QETH_BUFSIZE;
1427 channel->ccw.cda = (__u32) __pa(iob->data);
1429 wait_event(card->wait_q,
1430 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1431 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1432 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1433 rc = ccw_device_start(channel->ccwdev,
1434 &channel->ccw, (addr_t) iob, 0, 0);
1435 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1438 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1439 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1440 atomic_set(&channel->irq_pending, 0);
1441 wake_up(&card->wait_q);
1444 rc = wait_event_interruptible_timeout(card->wait_q,
1445 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1446 if (rc == -ERESTARTSYS)
1448 if (channel->state != CH_STATE_UP) {
1450 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1451 qeth_clear_cmd_buffers(channel);
1457 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1458 void (*idx_reply_cb)(struct qeth_channel *,
1459 struct qeth_cmd_buffer *))
1461 struct qeth_card *card;
1462 struct qeth_cmd_buffer *iob;
1463 unsigned long flags;
1467 struct ccw_dev_id temp_devid;
1469 card = CARD_FROM_CDEV(channel->ccwdev);
1471 QETH_DBF_TEXT(SETUP, 2, "idxactch");
1473 iob = qeth_get_buffer(channel);
1474 iob->callback = idx_reply_cb;
1475 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1476 channel->ccw.count = IDX_ACTIVATE_SIZE;
1477 channel->ccw.cda = (__u32) __pa(iob->data);
1478 if (channel == &card->write) {
1479 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1480 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1481 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1482 card->seqno.trans_hdr++;
1484 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1485 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1486 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1488 tmp = ((__u8)card->info.portno) | 0x80;
1489 memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1490 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1491 &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1492 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1493 &card->info.func_level, sizeof(__u16));
1494 ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1495 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1496 temp = (card->info.cula << 8) + card->info.unit_addr2;
1497 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1499 wait_event(card->wait_q,
1500 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1501 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1502 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1503 rc = ccw_device_start(channel->ccwdev,
1504 &channel->ccw, (addr_t) iob, 0, 0);
1505 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1508 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1510 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1511 atomic_set(&channel->irq_pending, 0);
1512 wake_up(&card->wait_q);
1515 rc = wait_event_interruptible_timeout(card->wait_q,
1516 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1517 if (rc == -ERESTARTSYS)
1519 if (channel->state != CH_STATE_ACTIVATING) {
1520 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1521 " failed to recover an error on the device\n");
1522 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1523 dev_name(&channel->ccwdev->dev));
1524 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1525 qeth_clear_cmd_buffers(channel);
1528 return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1531 static int qeth_peer_func_level(int level)
1533 if ((level & 0xff) == 8)
1534 return (level & 0xff) + 0x400;
1535 if (((level >> 8) & 3) == 1)
1536 return (level & 0xff) + 0x200;
1540 static void qeth_idx_write_cb(struct qeth_channel *channel,
1541 struct qeth_cmd_buffer *iob)
1543 struct qeth_card *card;
1546 QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1548 if (channel->state == CH_STATE_DOWN) {
1549 channel->state = CH_STATE_ACTIVATING;
1552 card = CARD_FROM_CDEV(channel->ccwdev);
1554 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1555 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
1556 dev_err(&card->write.ccwdev->dev,
1557 "The adapter is used exclusively by another "
1560 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1561 " negative reply\n",
1562 dev_name(&card->write.ccwdev->dev));
1565 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1566 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1567 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1568 "function level mismatch (sent: 0x%x, received: "
1569 "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1570 card->info.func_level, temp);
1573 channel->state = CH_STATE_UP;
1575 qeth_release_buffer(channel, iob);
1578 static void qeth_idx_read_cb(struct qeth_channel *channel,
1579 struct qeth_cmd_buffer *iob)
1581 struct qeth_card *card;
1584 QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1585 if (channel->state == CH_STATE_DOWN) {
1586 channel->state = CH_STATE_ACTIVATING;
1590 card = CARD_FROM_CDEV(channel->ccwdev);
1591 if (qeth_check_idx_response(card, iob->data))
1594 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1595 switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
1596 case QETH_IDX_ACT_ERR_EXCL:
1597 dev_err(&card->write.ccwdev->dev,
1598 "The adapter is used exclusively by another "
1601 case QETH_IDX_ACT_ERR_AUTH:
1602 case QETH_IDX_ACT_ERR_AUTH_USER:
1603 dev_err(&card->read.ccwdev->dev,
1604 "Setting the device online failed because of "
1605 "insufficient authorization\n");
1608 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1609 " negative reply\n",
1610 dev_name(&card->read.ccwdev->dev));
1612 QETH_CARD_TEXT_(card, 2, "idxread%c",
1613 QETH_IDX_ACT_CAUSE_CODE(iob->data));
1618 * * temporary fix for microcode bug
1619 * * to revert it,replace OR by AND
1621 if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1622 (card->info.type == QETH_CARD_TYPE_OSD))
1623 card->info.portname_required = 1;
1625 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1626 if (temp != qeth_peer_func_level(card->info.func_level)) {
1627 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1628 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1629 dev_name(&card->read.ccwdev->dev),
1630 card->info.func_level, temp);
1633 memcpy(&card->token.issuer_rm_r,
1634 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1635 QETH_MPC_TOKEN_LENGTH);
1636 memcpy(&card->info.mcl_level[0],
1637 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1638 channel->state = CH_STATE_UP;
1640 qeth_release_buffer(channel, iob);
1643 void qeth_prepare_control_data(struct qeth_card *card, int len,
1644 struct qeth_cmd_buffer *iob)
1646 qeth_setup_ccw(&card->write, iob->data, len);
1647 iob->callback = qeth_release_buffer;
1649 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1650 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1651 card->seqno.trans_hdr++;
1652 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1653 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1654 card->seqno.pdu_hdr++;
1655 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1656 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1657 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1659 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1661 int qeth_send_control_data(struct qeth_card *card, int len,
1662 struct qeth_cmd_buffer *iob,
1663 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1668 unsigned long flags;
1669 struct qeth_reply *reply = NULL;
1670 unsigned long timeout, event_timeout;
1671 struct qeth_ipa_cmd *cmd;
1673 QETH_CARD_TEXT(card, 2, "sendctl");
1675 if (card->read_or_write_problem) {
1676 qeth_release_buffer(iob->channel, iob);
1679 reply = qeth_alloc_reply(card);
1683 reply->callback = reply_cb;
1684 reply->param = reply_param;
1685 if (card->state == CARD_STATE_DOWN)
1686 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1688 reply->seqno = card->seqno.ipa++;
1689 init_waitqueue_head(&reply->wait_q);
1690 spin_lock_irqsave(&card->lock, flags);
1691 list_add_tail(&reply->list, &card->cmd_waiter_list);
1692 spin_unlock_irqrestore(&card->lock, flags);
1693 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1695 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1696 qeth_prepare_control_data(card, len, iob);
1698 if (IS_IPA(iob->data))
1699 event_timeout = QETH_IPA_TIMEOUT;
1701 event_timeout = QETH_TIMEOUT;
1702 timeout = jiffies + event_timeout;
1704 QETH_CARD_TEXT(card, 6, "noirqpnd");
1705 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1706 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1707 (addr_t) iob, 0, 0);
1708 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1710 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
1711 "ccw_device_start rc = %i\n",
1712 dev_name(&card->write.ccwdev->dev), rc);
1713 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1714 spin_lock_irqsave(&card->lock, flags);
1715 list_del_init(&reply->list);
1716 qeth_put_reply(reply);
1717 spin_unlock_irqrestore(&card->lock, flags);
1718 qeth_release_buffer(iob->channel, iob);
1719 atomic_set(&card->write.irq_pending, 0);
1720 wake_up(&card->wait_q);
1724 /* we have only one long running ipassist, since we can ensure
1725 process context of this command we can sleep */
1726 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1727 if ((cmd->hdr.command == IPA_CMD_SETIP) &&
1728 (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
1729 if (!wait_event_timeout(reply->wait_q,
1730 atomic_read(&reply->received), event_timeout))
1733 while (!atomic_read(&reply->received)) {
1734 if (time_after(jiffies, timeout))
1740 if (reply->rc == -EIO)
1743 qeth_put_reply(reply);
1748 spin_lock_irqsave(&reply->card->lock, flags);
1749 list_del_init(&reply->list);
1750 spin_unlock_irqrestore(&reply->card->lock, flags);
1751 atomic_inc(&reply->received);
1753 atomic_set(&card->write.irq_pending, 0);
1754 qeth_release_buffer(iob->channel, iob);
1755 card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
1757 qeth_put_reply(reply);
1760 EXPORT_SYMBOL_GPL(qeth_send_control_data);
1762 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1765 struct qeth_cmd_buffer *iob;
1767 QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
1769 iob = (struct qeth_cmd_buffer *) data;
1770 memcpy(&card->token.cm_filter_r,
1771 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1772 QETH_MPC_TOKEN_LENGTH);
1773 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1777 static int qeth_cm_enable(struct qeth_card *card)
1780 struct qeth_cmd_buffer *iob;
1782 QETH_DBF_TEXT(SETUP, 2, "cmenable");
1784 iob = qeth_wait_for_buffer(&card->write);
1785 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1786 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1787 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1788 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1789 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1791 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1792 qeth_cm_enable_cb, NULL);
1796 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1800 struct qeth_cmd_buffer *iob;
1802 QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
1804 iob = (struct qeth_cmd_buffer *) data;
1805 memcpy(&card->token.cm_connection_r,
1806 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1807 QETH_MPC_TOKEN_LENGTH);
1808 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1812 static int qeth_cm_setup(struct qeth_card *card)
1815 struct qeth_cmd_buffer *iob;
1817 QETH_DBF_TEXT(SETUP, 2, "cmsetup");
1819 iob = qeth_wait_for_buffer(&card->write);
1820 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1821 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1822 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1823 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1824 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1825 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1826 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1827 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1828 qeth_cm_setup_cb, NULL);
1833 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
1835 switch (card->info.type) {
1836 case QETH_CARD_TYPE_UNKNOWN:
1838 case QETH_CARD_TYPE_IQD:
1839 return card->info.max_mtu;
1840 case QETH_CARD_TYPE_OSD:
1841 switch (card->info.link_type) {
1842 case QETH_LINK_TYPE_HSTR:
1843 case QETH_LINK_TYPE_LANE_TR:
1848 case QETH_CARD_TYPE_OSM:
1849 case QETH_CARD_TYPE_OSX:
1856 static inline int qeth_get_mtu_outof_framesize(int framesize)
1858 switch (framesize) {
1872 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
1874 switch (card->info.type) {
1875 case QETH_CARD_TYPE_OSD:
1876 case QETH_CARD_TYPE_OSM:
1877 case QETH_CARD_TYPE_OSX:
1878 case QETH_CARD_TYPE_IQD:
1879 return ((mtu >= 576) &&
1880 (mtu <= card->info.max_mtu));
1881 case QETH_CARD_TYPE_OSN:
1882 case QETH_CARD_TYPE_UNKNOWN:
1888 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1892 __u16 mtu, framesize;
1895 struct qeth_cmd_buffer *iob;
1897 QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
1899 iob = (struct qeth_cmd_buffer *) data;
1900 memcpy(&card->token.ulp_filter_r,
1901 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1902 QETH_MPC_TOKEN_LENGTH);
1903 if (card->info.type == QETH_CARD_TYPE_IQD) {
1904 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1905 mtu = qeth_get_mtu_outof_framesize(framesize);
1908 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1911 if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
1912 /* frame size has changed */
1914 ((card->dev->mtu == card->info.initial_mtu) ||
1915 (card->dev->mtu > mtu)))
1916 card->dev->mtu = mtu;
1917 qeth_free_qdio_buffers(card);
1919 card->info.initial_mtu = mtu;
1920 card->info.max_mtu = mtu;
1921 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1923 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1924 card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
1926 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1929 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1930 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1932 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1933 card->info.link_type = link_type;
1935 card->info.link_type = 0;
1936 QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
1937 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1941 static int qeth_ulp_enable(struct qeth_card *card)
1945 struct qeth_cmd_buffer *iob;
1947 /*FIXME: trace view callbacks*/
1948 QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
1950 iob = qeth_wait_for_buffer(&card->write);
1951 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1953 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1954 (__u8) card->info.portno;
1955 if (card->options.layer2)
1956 if (card->info.type == QETH_CARD_TYPE_OSN)
1957 prot_type = QETH_PROT_OSN2;
1959 prot_type = QETH_PROT_LAYER2;
1961 prot_type = QETH_PROT_TCPIP;
1963 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
1964 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1965 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1966 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1967 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1968 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1969 card->info.portname, 9);
1970 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1971 qeth_ulp_enable_cb, NULL);
1976 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1979 struct qeth_cmd_buffer *iob;
1982 QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
1984 iob = (struct qeth_cmd_buffer *) data;
1985 memcpy(&card->token.ulp_connection_r,
1986 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1987 QETH_MPC_TOKEN_LENGTH);
1988 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1990 QETH_DBF_TEXT(SETUP, 2, "olmlimit");
1991 dev_err(&card->gdev->dev, "A connection could not be "
1992 "established because of an OLM limit\n");
1995 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1999 static int qeth_ulp_setup(struct qeth_card *card)
2003 struct qeth_cmd_buffer *iob;
2004 struct ccw_dev_id dev_id;
2006 QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2008 iob = qeth_wait_for_buffer(&card->write);
2009 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2011 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2012 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2013 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2014 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2015 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2016 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2018 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2019 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2020 temp = (card->info.cula << 8) + card->info.unit_addr2;
2021 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2022 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2023 qeth_ulp_setup_cb, NULL);
2027 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2031 QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2033 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2034 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2037 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
2039 if (!card->qdio.in_q)
2041 QETH_DBF_TEXT(SETUP, 2, "inq");
2042 QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
2043 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2044 /* give inbound qeth_qdio_buffers their qdio_buffers */
2045 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2046 card->qdio.in_q->bufs[i].buffer =
2047 &card->qdio.in_q->qdio_bufs[i];
2048 /* inbound buffer pool */
2049 if (qeth_alloc_buffer_pool(card))
2053 kmalloc(card->qdio.no_out_queues *
2054 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2055 if (!card->qdio.out_qs)
2057 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2058 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2060 if (!card->qdio.out_qs[i])
2062 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2063 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2064 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2065 card->qdio.out_qs[i]->queue_no = i;
2066 /* give outbound qeth_qdio_buffers their qdio_buffers */
2067 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2068 card->qdio.out_qs[i]->bufs[j].buffer =
2069 &card->qdio.out_qs[i]->qdio_bufs[j];
2070 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2073 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
2074 &qdio_out_skb_queue_key);
2075 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
2082 kfree(card->qdio.out_qs[--i]);
2083 kfree(card->qdio.out_qs);
2084 card->qdio.out_qs = NULL;
2086 qeth_free_buffer_pool(card);
2088 kfree(card->qdio.in_q);
2089 card->qdio.in_q = NULL;
2091 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2095 static void qeth_create_qib_param_field(struct qeth_card *card,
2099 param_field[0] = _ascebc['P'];
2100 param_field[1] = _ascebc['C'];
2101 param_field[2] = _ascebc['I'];
2102 param_field[3] = _ascebc['T'];
2103 *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card);
2104 *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card);
2105 *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card);
2108 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2111 param_field[16] = _ascebc['B'];
2112 param_field[17] = _ascebc['L'];
2113 param_field[18] = _ascebc['K'];
2114 param_field[19] = _ascebc['T'];
2115 *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total;
2116 *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet;
2117 *((unsigned int *) (¶m_field[28])) =
2118 card->info.blkt.inter_packet_jumbo;
2121 static int qeth_qdio_activate(struct qeth_card *card)
2123 QETH_DBF_TEXT(SETUP, 3, "qdioact");
2124 return qdio_activate(CARD_DDEV(card));
2127 static int qeth_dm_act(struct qeth_card *card)
2130 struct qeth_cmd_buffer *iob;
2132 QETH_DBF_TEXT(SETUP, 2, "dmact");
2134 iob = qeth_wait_for_buffer(&card->write);
2135 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2137 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2138 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2139 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2140 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2141 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2145 static int qeth_mpc_initialize(struct qeth_card *card)
2149 QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2151 rc = qeth_issue_next_read(card);
2153 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2156 rc = qeth_cm_enable(card);
2158 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2161 rc = qeth_cm_setup(card);
2163 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2166 rc = qeth_ulp_enable(card);
2168 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2171 rc = qeth_ulp_setup(card);
2173 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2176 rc = qeth_alloc_qdio_buffers(card);
2178 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2181 rc = qeth_qdio_establish(card);
2183 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2184 qeth_free_qdio_buffers(card);
2187 rc = qeth_qdio_activate(card);
2189 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2192 rc = qeth_dm_act(card);
2194 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2200 qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2204 static void qeth_print_status_with_portname(struct qeth_card *card)
2209 sprintf(dbf_text, "%s", card->info.portname + 1);
2210 for (i = 0; i < 8; i++)
2212 (char) _ebcasc[(__u8) dbf_text[i]];
2214 dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n"
2215 "with link type %s (portname: %s)\n",
2216 qeth_get_cardname(card),
2217 (card->info.mcl_level[0]) ? " (level: " : "",
2218 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2219 (card->info.mcl_level[0]) ? ")" : "",
2220 qeth_get_cardname_short(card),
2225 static void qeth_print_status_no_portname(struct qeth_card *card)
2227 if (card->info.portname[0])
2228 dev_info(&card->gdev->dev, "Device is a%s "
2229 "card%s%s%s\nwith link type %s "
2230 "(no portname needed by interface).\n",
2231 qeth_get_cardname(card),
2232 (card->info.mcl_level[0]) ? " (level: " : "",
2233 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2234 (card->info.mcl_level[0]) ? ")" : "",
2235 qeth_get_cardname_short(card));
2237 dev_info(&card->gdev->dev, "Device is a%s "
2238 "card%s%s%s\nwith link type %s.\n",
2239 qeth_get_cardname(card),
2240 (card->info.mcl_level[0]) ? " (level: " : "",
2241 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2242 (card->info.mcl_level[0]) ? ")" : "",
2243 qeth_get_cardname_short(card));
2246 void qeth_print_status_message(struct qeth_card *card)
2248 switch (card->info.type) {
2249 case QETH_CARD_TYPE_OSD:
2250 case QETH_CARD_TYPE_OSM:
2251 case QETH_CARD_TYPE_OSX:
2252 /* VM will use a non-zero first character
2253 * to indicate a HiperSockets like reporting
2254 * of the level OSA sets the first character to zero
2256 if (!card->info.mcl_level[0]) {
2257 sprintf(card->info.mcl_level, "%02x%02x",
2258 card->info.mcl_level[2],
2259 card->info.mcl_level[3]);
2261 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2265 case QETH_CARD_TYPE_IQD:
2266 if ((card->info.guestlan) ||
2267 (card->info.mcl_level[0] & 0x80)) {
2268 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2269 card->info.mcl_level[0]];
2270 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2271 card->info.mcl_level[1]];
2272 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2273 card->info.mcl_level[2]];
2274 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2275 card->info.mcl_level[3]];
2276 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2280 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2282 if (card->info.portname_required)
2283 qeth_print_status_with_portname(card);
2285 qeth_print_status_no_portname(card);
2287 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2289 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2291 struct qeth_buffer_pool_entry *entry;
2293 QETH_CARD_TEXT(card, 5, "inwrklst");
2295 list_for_each_entry(entry,
2296 &card->qdio.init_pool.entry_list, init_list) {
2297 qeth_put_buffer_pool_entry(card, entry);
2301 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2302 struct qeth_card *card)
2304 struct list_head *plh;
2305 struct qeth_buffer_pool_entry *entry;
2309 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2312 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2313 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2315 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2316 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2322 list_del_init(&entry->list);
2327 /* no free buffer in pool so take first one and swap pages */
2328 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2329 struct qeth_buffer_pool_entry, list);
2330 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2331 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2332 page = alloc_page(GFP_ATOMIC);
2336 free_page((unsigned long)entry->elements[i]);
2337 entry->elements[i] = page_address(page);
2338 if (card->options.performance_stats)
2339 card->perf_stats.sg_alloc_page_rx++;
2343 list_del_init(&entry->list);
2347 static int qeth_init_input_buffer(struct qeth_card *card,
2348 struct qeth_qdio_buffer *buf)
2350 struct qeth_buffer_pool_entry *pool_entry;
2353 pool_entry = qeth_find_free_buffer_pool_entry(card);
2358 * since the buffer is accessed only from the input_tasklet
2359 * there shouldn't be a need to synchronize; also, since we use
2360 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2364 buf->pool_entry = pool_entry;
2365 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2366 buf->buffer->element[i].length = PAGE_SIZE;
2367 buf->buffer->element[i].addr = pool_entry->elements[i];
2368 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2369 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2371 buf->buffer->element[i].flags = 0;
2376 int qeth_init_qdio_queues(struct qeth_card *card)
2381 QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2384 memset(card->qdio.in_q->qdio_bufs, 0,
2385 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2386 qeth_initialize_working_pool_list(card);
2387 /*give only as many buffers to hardware as we have buffer pool entries*/
2388 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2389 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2390 card->qdio.in_q->next_buf_to_init =
2391 card->qdio.in_buf_pool.buf_count - 1;
2392 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2393 card->qdio.in_buf_pool.buf_count - 1);
2395 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2398 /* outbound queue */
2399 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2400 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2401 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2402 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2403 qeth_clear_output_buffer(card->qdio.out_qs[i],
2404 &card->qdio.out_qs[i]->bufs[j]);
2406 card->qdio.out_qs[i]->card = card;
2407 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2408 card->qdio.out_qs[i]->do_pack = 0;
2409 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2410 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2411 atomic_set(&card->qdio.out_qs[i]->state,
2412 QETH_OUT_Q_UNLOCKED);
2416 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2418 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2420 switch (link_type) {
2421 case QETH_LINK_TYPE_HSTR:
2428 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2429 struct qeth_ipa_cmd *cmd, __u8 command,
2430 enum qeth_prot_versions prot)
2432 memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2433 cmd->hdr.command = command;
2434 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2435 cmd->hdr.seqno = card->seqno.ipa;
2436 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2437 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2438 if (card->options.layer2)
2439 cmd->hdr.prim_version_no = 2;
2441 cmd->hdr.prim_version_no = 1;
2442 cmd->hdr.param_count = 1;
2443 cmd->hdr.prot_version = prot;
2444 cmd->hdr.ipa_supported = 0;
2445 cmd->hdr.ipa_enabled = 0;
2448 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2449 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2451 struct qeth_cmd_buffer *iob;
2452 struct qeth_ipa_cmd *cmd;
2454 iob = qeth_wait_for_buffer(&card->write);
2455 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2456 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2460 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2462 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2465 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2466 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2467 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2468 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2470 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2472 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2473 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2480 QETH_CARD_TEXT(card, 4, "sendipa");
2482 if (card->options.layer2)
2483 if (card->info.type == QETH_CARD_TYPE_OSN)
2484 prot_type = QETH_PROT_OSN2;
2486 prot_type = QETH_PROT_LAYER2;
2488 prot_type = QETH_PROT_TCPIP;
2489 qeth_prepare_ipa_cmd(card, iob, prot_type);
2490 rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2491 iob, reply_cb, reply_param);
2493 qeth_clear_ipacmd_list(card);
2494 qeth_schedule_recovery(card);
2498 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2500 int qeth_send_startlan(struct qeth_card *card)
2503 struct qeth_cmd_buffer *iob;
2505 QETH_DBF_TEXT(SETUP, 2, "strtlan");
2507 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
2508 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2511 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2513 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2514 struct qeth_reply *reply, unsigned long data)
2516 struct qeth_ipa_cmd *cmd;
2518 QETH_CARD_TEXT(card, 4, "defadpcb");
2520 cmd = (struct qeth_ipa_cmd *) data;
2521 if (cmd->hdr.return_code == 0)
2522 cmd->hdr.return_code =
2523 cmd->data.setadapterparms.hdr.return_code;
2526 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2528 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2529 struct qeth_reply *reply, unsigned long data)
2531 struct qeth_ipa_cmd *cmd;
2533 QETH_CARD_TEXT(card, 3, "quyadpcb");
2535 cmd = (struct qeth_ipa_cmd *) data;
2536 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
2537 card->info.link_type =
2538 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2539 QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
2541 card->options.adp.supported_funcs =
2542 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2543 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2546 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2547 __u32 command, __u32 cmdlen)
2549 struct qeth_cmd_buffer *iob;
2550 struct qeth_ipa_cmd *cmd;
2552 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2554 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2555 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2556 cmd->data.setadapterparms.hdr.command_code = command;
2557 cmd->data.setadapterparms.hdr.used_total = 1;
2558 cmd->data.setadapterparms.hdr.seq_no = 1;
2562 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2564 int qeth_query_setadapterparms(struct qeth_card *card)
2567 struct qeth_cmd_buffer *iob;
2569 QETH_CARD_TEXT(card, 3, "queryadp");
2570 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2571 sizeof(struct qeth_ipacmd_setadpparms));
2572 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2575 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2577 int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
2578 unsigned int qdio_error, const char *dbftext)
2581 QETH_CARD_TEXT(card, 2, dbftext);
2582 QETH_CARD_TEXT_(card, 2, " F15=%02X",
2583 buf->element[15].flags & 0xff);
2584 QETH_CARD_TEXT_(card, 2, " F14=%02X",
2585 buf->element[14].flags & 0xff);
2586 QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
2587 if ((buf->element[15].flags & 0xff) == 0x12) {
2588 card->stats.rx_dropped++;
2595 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
2597 void qeth_queue_input_buffer(struct qeth_card *card, int index)
2599 struct qeth_qdio_q *queue = card->qdio.in_q;
2605 count = (index < queue->next_buf_to_init)?
2606 card->qdio.in_buf_pool.buf_count -
2607 (queue->next_buf_to_init - index) :
2608 card->qdio.in_buf_pool.buf_count -
2609 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2610 /* only requeue at a certain threshold to avoid SIGAs */
2611 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
2612 for (i = queue->next_buf_to_init;
2613 i < queue->next_buf_to_init + count; ++i) {
2614 if (qeth_init_input_buffer(card,
2615 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2622 if (newcount < count) {
2623 /* we are in memory shortage so we switch back to
2624 traditional skb allocation and drop packages */
2625 atomic_set(&card->force_alloc_skb, 3);
2628 atomic_add_unless(&card->force_alloc_skb, -1, 0);
2632 * according to old code it should be avoided to requeue all
2633 * 128 buffers in order to benefit from PCI avoidance.
2634 * this function keeps at least one buffer (the buffer at
2635 * 'index') un-requeued -> this buffer is the first buffer that
2636 * will be requeued the next time
2638 if (card->options.performance_stats) {
2639 card->perf_stats.inbound_do_qdio_cnt++;
2640 card->perf_stats.inbound_do_qdio_start_time =
2643 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
2644 queue->next_buf_to_init, count);
2645 if (card->options.performance_stats)
2646 card->perf_stats.inbound_do_qdio_time +=
2648 card->perf_stats.inbound_do_qdio_start_time;
2650 dev_warn(&card->gdev->dev,
2651 "QDIO reported an error, rc=%i\n", rc);
2652 QETH_CARD_TEXT(card, 2, "qinberr");
2654 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2655 QDIO_MAX_BUFFERS_PER_Q;
2658 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
2660 static int qeth_handle_send_error(struct qeth_card *card,
2661 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
2663 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2665 QETH_CARD_TEXT(card, 6, "hdsnderr");
2666 if (card->info.type == QETH_CARD_TYPE_IQD) {
2673 qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
2676 return QETH_SEND_ERROR_NONE;
2678 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2679 return QETH_SEND_ERROR_RETRY;
2681 QETH_CARD_TEXT(card, 1, "lnkfail");
2682 QETH_CARD_TEXT_(card, 1, "%04x %02x",
2683 (u16)qdio_err, (u8)sbalf15);
2684 return QETH_SEND_ERROR_LINK_FAILURE;
2688 * Switched to packing state if the number of used buffers on a queue
2689 * reaches a certain limit.
2691 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2693 if (!queue->do_pack) {
2694 if (atomic_read(&queue->used_buffers)
2695 >= QETH_HIGH_WATERMARK_PACK){
2696 /* switch non-PACKING -> PACKING */
2697 QETH_CARD_TEXT(queue->card, 6, "np->pack");
2698 if (queue->card->options.performance_stats)
2699 queue->card->perf_stats.sc_dp_p++;
2706 * Switches from packing to non-packing mode. If there is a packing
2707 * buffer on the queue this buffer will be prepared to be flushed.
2708 * In that case 1 is returned to inform the caller. If no buffer
2709 * has to be flushed, zero is returned.
2711 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2713 struct qeth_qdio_out_buffer *buffer;
2714 int flush_count = 0;
2716 if (queue->do_pack) {
2717 if (atomic_read(&queue->used_buffers)
2718 <= QETH_LOW_WATERMARK_PACK) {
2719 /* switch PACKING -> non-PACKING */
2720 QETH_CARD_TEXT(queue->card, 6, "pack->np");
2721 if (queue->card->options.performance_stats)
2722 queue->card->perf_stats.sc_p_dp++;
2724 /* flush packing buffers */
2725 buffer = &queue->bufs[queue->next_buf_to_fill];
2726 if ((atomic_read(&buffer->state) ==
2727 QETH_QDIO_BUF_EMPTY) &&
2728 (buffer->next_element_to_fill > 0)) {
2729 atomic_set(&buffer->state,
2730 QETH_QDIO_BUF_PRIMED);
2732 queue->next_buf_to_fill =
2733 (queue->next_buf_to_fill + 1) %
2734 QDIO_MAX_BUFFERS_PER_Q;
2742 * Called to flush a packing buffer if no more pci flags are on the queue.
2743 * Checks if there is a packing buffer and prepares it to be flushed.
2744 * In that case returns 1, otherwise zero.
2746 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2748 struct qeth_qdio_out_buffer *buffer;
2750 buffer = &queue->bufs[queue->next_buf_to_fill];
2751 if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2752 (buffer->next_element_to_fill > 0)) {
2753 /* it's a packing buffer */
2754 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2755 queue->next_buf_to_fill =
2756 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2762 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
2765 struct qeth_qdio_out_buffer *buf;
2768 unsigned int qdio_flags;
2770 for (i = index; i < index + count; ++i) {
2771 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2772 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2773 SBAL_FLAGS_LAST_ENTRY;
2775 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2778 if (!queue->do_pack) {
2779 if ((atomic_read(&queue->used_buffers) >=
2780 (QETH_HIGH_WATERMARK_PACK -
2781 QETH_WATERMARK_PACK_FUZZ)) &&
2782 !atomic_read(&queue->set_pci_flags_count)) {
2783 /* it's likely that we'll go to packing
2785 atomic_inc(&queue->set_pci_flags_count);
2786 buf->buffer->element[0].flags |= 0x40;
2789 if (!atomic_read(&queue->set_pci_flags_count)) {
2791 * there's no outstanding PCI any more, so we
2792 * have to request a PCI to be sure the the PCI
2793 * will wake at some time in the future then we
2794 * can flush packed buffers that might still be
2795 * hanging around, which can happen if no
2796 * further send was requested by the stack
2798 atomic_inc(&queue->set_pci_flags_count);
2799 buf->buffer->element[0].flags |= 0x40;
2804 queue->card->dev->trans_start = jiffies;
2805 if (queue->card->options.performance_stats) {
2806 queue->card->perf_stats.outbound_do_qdio_cnt++;
2807 queue->card->perf_stats.outbound_do_qdio_start_time =
2810 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2811 if (atomic_read(&queue->set_pci_flags_count))
2812 qdio_flags |= QDIO_FLAG_PCI_OUT;
2813 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2814 queue->queue_no, index, count);
2815 if (queue->card->options.performance_stats)
2816 queue->card->perf_stats.outbound_do_qdio_time +=
2818 queue->card->perf_stats.outbound_do_qdio_start_time;
2819 atomic_add(count, &queue->used_buffers);
2821 queue->card->stats.tx_errors += count;
2822 /* ignore temporary SIGA errors without busy condition */
2823 if (rc == QDIO_ERROR_SIGA_TARGET)
2825 QETH_CARD_TEXT(queue->card, 2, "flushbuf");
2826 QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
2828 /* this must not happen under normal circumstances. if it
2829 * happens something is really wrong -> recover */
2830 qeth_schedule_recovery(queue->card);
2833 if (queue->card->options.performance_stats)
2834 queue->card->perf_stats.bufs_sent += count;
2837 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2841 int q_was_packing = 0;
2844 * check if weed have to switch to non-packing mode or if
2845 * we have to get a pci flag out on the queue
2847 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2848 !atomic_read(&queue->set_pci_flags_count)) {
2849 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2850 QETH_OUT_Q_UNLOCKED) {
2852 * If we get in here, there was no action in
2853 * do_send_packet. So, we check if there is a
2854 * packing buffer to be flushed here.
2856 netif_stop_queue(queue->card->dev);
2857 index = queue->next_buf_to_fill;
2858 q_was_packing = queue->do_pack;
2859 /* queue->do_pack may change */
2861 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2863 !atomic_read(&queue->set_pci_flags_count))
2865 qeth_flush_buffers_on_no_pci(queue);
2866 if (queue->card->options.performance_stats &&
2868 queue->card->perf_stats.bufs_sent_pack +=
2871 qeth_flush_buffers(queue, index, flush_cnt);
2872 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2877 void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
2878 unsigned long card_ptr)
2880 struct qeth_card *card = (struct qeth_card *)card_ptr;
2882 if (card->dev && (card->dev->flags & IFF_UP))
2883 napi_schedule(&card->napi);
2885 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
2887 void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
2888 unsigned int queue, int first_element, int count,
2889 unsigned long card_ptr)
2891 struct qeth_card *card = (struct qeth_card *)card_ptr;
2894 qeth_schedule_recovery(card);
2896 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
2898 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
2899 unsigned int qdio_error, int __queue, int first_element,
2900 int count, unsigned long card_ptr)
2902 struct qeth_card *card = (struct qeth_card *) card_ptr;
2903 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2904 struct qeth_qdio_out_buffer *buffer;
2907 QETH_CARD_TEXT(card, 6, "qdouhdl");
2908 if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
2909 QETH_CARD_TEXT(card, 2, "achkcond");
2910 netif_stop_queue(card->dev);
2911 qeth_schedule_recovery(card);
2914 if (card->options.performance_stats) {
2915 card->perf_stats.outbound_handler_cnt++;
2916 card->perf_stats.outbound_handler_start_time =
2919 for (i = first_element; i < (first_element + count); ++i) {
2920 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2921 qeth_handle_send_error(card, buffer, qdio_error);
2922 qeth_clear_output_buffer(queue, buffer);
2924 atomic_sub(count, &queue->used_buffers);
2925 /* check if we need to do something on this outbound queue */
2926 if (card->info.type != QETH_CARD_TYPE_IQD)
2927 qeth_check_outbound_queue(queue);
2929 netif_wake_queue(queue->card->dev);
2930 if (card->options.performance_stats)
2931 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2932 card->perf_stats.outbound_handler_start_time;
2934 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
2936 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
2937 int ipv, int cast_type)
2939 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD ||
2940 card->info.type == QETH_CARD_TYPE_OSX))
2941 return card->qdio.default_out_queue;
2942 switch (card->qdio.no_out_queues) {
2944 if (cast_type && card->info.is_multicast_different)
2945 return card->info.is_multicast_different &
2946 (card->qdio.no_out_queues - 1);
2947 if (card->qdio.do_prio_queueing && (ipv == 4)) {
2948 const u8 tos = ip_hdr(skb)->tos;
2950 if (card->qdio.do_prio_queueing ==
2951 QETH_PRIO_Q_ING_TOS) {
2952 if (tos & IP_TOS_NOTIMPORTANT)
2954 if (tos & IP_TOS_HIGHRELIABILITY)
2956 if (tos & IP_TOS_HIGHTHROUGHPUT)
2958 if (tos & IP_TOS_LOWDELAY)
2961 if (card->qdio.do_prio_queueing ==
2962 QETH_PRIO_Q_ING_PREC)
2963 return 3 - (tos >> 6);
2964 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
2967 return card->qdio.default_out_queue;
2968 case 1: /* fallthrough for single-out-queue 1920-device */
2970 return card->qdio.default_out_queue;
2973 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
2975 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
2976 struct sk_buff *skb, int elems)
2978 int dlen = skb->len - skb->data_len;
2979 int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) -
2980 PFN_DOWN((unsigned long)skb->data);
2982 elements_needed += skb_shinfo(skb)->nr_frags;
2983 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2984 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
2985 "(Number=%d / Length=%d). Discarded.\n",
2986 (elements_needed+elems), skb->len);
2989 return elements_needed;
2991 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
2993 int qeth_hdr_chk_and_bounce(struct sk_buff *skb, int len)
2995 int hroom, inpage, rest;
2997 if (((unsigned long)skb->data & PAGE_MASK) !=
2998 (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
2999 hroom = skb_headroom(skb);
3000 inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
3001 rest = len - inpage;
3004 memmove(skb->data - rest, skb->data, skb->len - skb->data_len);
3006 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
3010 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
3012 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3013 struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3016 int length = skb->len - skb->data_len;
3021 struct skb_frag_struct *frag;
3023 element = *next_element_to_fill;
3025 first_lap = (is_tso == 0 ? 1 : 0);
3028 data = skb->data + offset;
3033 while (length > 0) {
3034 /* length_here is the remaining amount of data in this page */
3035 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3036 if (length < length_here)
3037 length_here = length;
3039 buffer->element[element].addr = data;
3040 buffer->element[element].length = length_here;
3041 length -= length_here;
3044 if (skb_shinfo(skb)->nr_frags)
3045 buffer->element[element].flags =
3046 SBAL_FLAGS_FIRST_FRAG;
3048 buffer->element[element].flags = 0;
3050 buffer->element[element].flags =
3051 SBAL_FLAGS_MIDDLE_FRAG;
3054 buffer->element[element].flags =
3055 SBAL_FLAGS_FIRST_FRAG;
3057 buffer->element[element].flags =
3058 SBAL_FLAGS_MIDDLE_FRAG;
3060 data += length_here;
3065 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3066 frag = &skb_shinfo(skb)->frags[cnt];
3067 buffer->element[element].addr = (char *)page_to_phys(frag->page)
3068 + frag->page_offset;
3069 buffer->element[element].length = frag->size;
3070 buffer->element[element].flags = SBAL_FLAGS_MIDDLE_FRAG;
3074 if (buffer->element[element - 1].flags)
3075 buffer->element[element - 1].flags = SBAL_FLAGS_LAST_FRAG;
3076 *next_element_to_fill = element;
3079 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3080 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3081 struct qeth_hdr *hdr, int offset, int hd_len)
3083 struct qdio_buffer *buffer;
3084 int flush_cnt = 0, hdr_len, large_send = 0;
3086 buffer = buf->buffer;
3087 atomic_inc(&skb->users);
3088 skb_queue_tail(&buf->skb_list, skb);
3090 /*check first on TSO ....*/
3091 if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3092 int element = buf->next_element_to_fill;
3094 hdr_len = sizeof(struct qeth_hdr_tso) +
3095 ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3096 /*fill first buffer entry only with header information */
3097 buffer->element[element].addr = skb->data;
3098 buffer->element[element].length = hdr_len;
3099 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3100 buf->next_element_to_fill++;
3101 skb->data += hdr_len;
3102 skb->len -= hdr_len;
3107 int element = buf->next_element_to_fill;
3108 buffer->element[element].addr = hdr;
3109 buffer->element[element].length = sizeof(struct qeth_hdr) +
3111 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3112 buf->is_header[element] = 1;
3113 buf->next_element_to_fill++;
3116 __qeth_fill_buffer(skb, buffer, large_send,
3117 (int *)&buf->next_element_to_fill, offset);
3119 if (!queue->do_pack) {
3120 QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
3121 /* set state to PRIMED -> will be flushed */
3122 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3125 QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
3126 if (queue->card->options.performance_stats)
3127 queue->card->perf_stats.skbs_sent_pack++;
3128 if (buf->next_element_to_fill >=
3129 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3131 * packed buffer if full -> set state PRIMED
3132 * -> will be flushed
3134 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3141 int qeth_do_send_packet_fast(struct qeth_card *card,
3142 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3143 struct qeth_hdr *hdr, int elements_needed,
3144 int offset, int hd_len)
3146 struct qeth_qdio_out_buffer *buffer;
3149 /* spin until we get the queue ... */
3150 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3151 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3152 /* ... now we've got the queue */
3153 index = queue->next_buf_to_fill;
3154 buffer = &queue->bufs[queue->next_buf_to_fill];
3156 * check if buffer is empty to make sure that we do not 'overtake'
3157 * ourselves and try to fill a buffer that is already primed
3159 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3161 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3162 QDIO_MAX_BUFFERS_PER_Q;
3163 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3164 qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
3165 qeth_flush_buffers(queue, index, 1);
3168 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3171 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3173 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3174 struct sk_buff *skb, struct qeth_hdr *hdr,
3175 int elements_needed)
3177 struct qeth_qdio_out_buffer *buffer;
3179 int flush_count = 0;
3184 /* spin until we get the queue ... */
3185 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3186 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3187 start_index = queue->next_buf_to_fill;
3188 buffer = &queue->bufs[queue->next_buf_to_fill];
3190 * check if buffer is empty to make sure that we do not 'overtake'
3191 * ourselves and try to fill a buffer that is already primed
3193 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3194 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3197 /* check if we need to switch packing state of this queue */
3198 qeth_switch_to_packing_if_needed(queue);
3199 if (queue->do_pack) {
3201 /* does packet fit in current buffer? */
3202 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3203 buffer->next_element_to_fill) < elements_needed) {
3204 /* ... no -> set state PRIMED */
3205 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3207 queue->next_buf_to_fill =
3208 (queue->next_buf_to_fill + 1) %
3209 QDIO_MAX_BUFFERS_PER_Q;
3210 buffer = &queue->bufs[queue->next_buf_to_fill];
3211 /* we did a step forward, so check buffer state
3213 if (atomic_read(&buffer->state) !=
3214 QETH_QDIO_BUF_EMPTY) {
3215 qeth_flush_buffers(queue, start_index,
3217 atomic_set(&queue->state,
3218 QETH_OUT_Q_UNLOCKED);
3223 tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
3224 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3225 QDIO_MAX_BUFFERS_PER_Q;
3228 qeth_flush_buffers(queue, start_index, flush_count);
3229 else if (!atomic_read(&queue->set_pci_flags_count))
3230 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3232 * queue->state will go from LOCKED -> UNLOCKED or from
3233 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3234 * (switch packing state or flush buffer to get another pci flag out).
3235 * In that case we will enter this loop
3237 while (atomic_dec_return(&queue->state)) {
3239 start_index = queue->next_buf_to_fill;
3240 /* check if we can go back to non-packing state */
3241 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3243 * check if we need to flush a packing buffer to get a pci
3244 * flag out on the queue
3246 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3247 flush_count += qeth_flush_buffers_on_no_pci(queue);
3249 qeth_flush_buffers(queue, start_index, flush_count);
3251 /* at this point the queue is UNLOCKED again */
3252 if (queue->card->options.performance_stats && do_pack)
3253 queue->card->perf_stats.bufs_sent_pack += flush_count;
3257 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3259 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3260 struct qeth_reply *reply, unsigned long data)
3262 struct qeth_ipa_cmd *cmd;
3263 struct qeth_ipacmd_setadpparms *setparms;
3265 QETH_CARD_TEXT(card, 4, "prmadpcb");
3267 cmd = (struct qeth_ipa_cmd *) data;
3268 setparms = &(cmd->data.setadapterparms);
3270 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3271 if (cmd->hdr.return_code) {
3272 QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code);
3273 setparms->data.mode = SET_PROMISC_MODE_OFF;
3275 card->info.promisc_mode = setparms->data.mode;
3279 void qeth_setadp_promisc_mode(struct qeth_card *card)
3281 enum qeth_ipa_promisc_modes mode;
3282 struct net_device *dev = card->dev;
3283 struct qeth_cmd_buffer *iob;
3284 struct qeth_ipa_cmd *cmd;
3286 QETH_CARD_TEXT(card, 4, "setprom");
3288 if (((dev->flags & IFF_PROMISC) &&
3289 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3290 (!(dev->flags & IFF_PROMISC) &&
3291 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3293 mode = SET_PROMISC_MODE_OFF;
3294 if (dev->flags & IFF_PROMISC)
3295 mode = SET_PROMISC_MODE_ON;
3296 QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
3298 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3299 sizeof(struct qeth_ipacmd_setadpparms));
3300 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3301 cmd->data.setadapterparms.data.mode = mode;
3302 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3304 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3306 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3308 struct qeth_card *card;
3311 card = dev->ml_priv;
3313 QETH_CARD_TEXT(card, 4, "chgmtu");
3314 sprintf(dbf_text, "%8x", new_mtu);
3315 QETH_CARD_TEXT(card, 4, dbf_text);
3319 if (new_mtu > 65535)
3321 if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3322 (!qeth_mtu_is_valid(card, new_mtu)))
3327 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3329 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3331 struct qeth_card *card;
3333 card = dev->ml_priv;
3335 QETH_CARD_TEXT(card, 5, "getstat");
3337 return &card->stats;
3339 EXPORT_SYMBOL_GPL(qeth_get_stats);
3341 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
3342 struct qeth_reply *reply, unsigned long data)
3344 struct qeth_ipa_cmd *cmd;
3346 QETH_CARD_TEXT(card, 4, "chgmaccb");
3348 cmd = (struct qeth_ipa_cmd *) data;
3349 if (!card->options.layer2 ||
3350 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
3351 memcpy(card->dev->dev_addr,
3352 &cmd->data.setadapterparms.data.change_addr.addr,
3354 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
3356 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3360 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
3363 struct qeth_cmd_buffer *iob;
3364 struct qeth_ipa_cmd *cmd;
3366 QETH_CARD_TEXT(card, 4, "chgmac");
3368 iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
3369 sizeof(struct qeth_ipacmd_setadpparms));
3370 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3371 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
3372 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
3373 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
3374 card->dev->dev_addr, OSA_ADDR_LEN);
3375 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
3379 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
3381 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
3382 struct qeth_reply *reply, unsigned long data)
3384 struct qeth_ipa_cmd *cmd;
3385 struct qeth_set_access_ctrl *access_ctrl_req;
3387 QETH_CARD_TEXT(card, 4, "setaccb");
3389 cmd = (struct qeth_ipa_cmd *) data;
3390 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
3391 QETH_DBF_TEXT_(SETUP, 2, "setaccb");
3392 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
3393 QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
3394 cmd->data.setadapterparms.hdr.return_code);
3395 switch (cmd->data.setadapterparms.hdr.return_code) {
3396 case SET_ACCESS_CTRL_RC_SUCCESS:
3397 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
3398 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
3400 card->options.isolation = access_ctrl_req->subcmd_code;
3401 if (card->options.isolation == ISOLATION_MODE_NONE) {
3402 dev_info(&card->gdev->dev,
3403 "QDIO data connection isolation is deactivated\n");
3405 dev_info(&card->gdev->dev,
3406 "QDIO data connection isolation is activated\n");
3408 QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n",
3409 card->gdev->dev.kobj.name,
3410 access_ctrl_req->subcmd_code,
3411 cmd->data.setadapterparms.hdr.return_code);
3414 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
3416 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
3417 card->gdev->dev.kobj.name,
3418 access_ctrl_req->subcmd_code,
3419 cmd->data.setadapterparms.hdr.return_code);
3420 dev_err(&card->gdev->dev, "Adapter does not "
3421 "support QDIO data connection isolation\n");
3423 /* ensure isolation mode is "none" */
3424 card->options.isolation = ISOLATION_MODE_NONE;
3427 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
3429 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
3430 card->gdev->dev.kobj.name,
3431 access_ctrl_req->subcmd_code,
3432 cmd->data.setadapterparms.hdr.return_code);
3433 dev_err(&card->gdev->dev,
3434 "Adapter is dedicated. "
3435 "QDIO data connection isolation not supported\n");
3437 /* ensure isolation mode is "none" */
3438 card->options.isolation = ISOLATION_MODE_NONE;
3441 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
3443 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
3444 card->gdev->dev.kobj.name,
3445 access_ctrl_req->subcmd_code,
3446 cmd->data.setadapterparms.hdr.return_code);
3447 dev_err(&card->gdev->dev,
3448 "TSO does not permit QDIO data connection isolation\n");
3450 /* ensure isolation mode is "none" */
3451 card->options.isolation = ISOLATION_MODE_NONE;
3456 /* this should never happen */
3457 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d"
3459 card->gdev->dev.kobj.name,
3460 access_ctrl_req->subcmd_code,
3461 cmd->data.setadapterparms.hdr.return_code);
3463 /* ensure isolation mode is "none" */
3464 card->options.isolation = ISOLATION_MODE_NONE;
3468 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3472 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
3473 enum qeth_ipa_isolation_modes isolation)
3476 struct qeth_cmd_buffer *iob;
3477 struct qeth_ipa_cmd *cmd;
3478 struct qeth_set_access_ctrl *access_ctrl_req;
3480 QETH_CARD_TEXT(card, 4, "setacctl");
3482 QETH_DBF_TEXT_(SETUP, 2, "setacctl");
3483 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
3485 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
3486 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
3487 sizeof(struct qeth_set_access_ctrl));
3488 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3489 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
3490 access_ctrl_req->subcmd_code = isolation;
3492 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
3494 QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
3498 int qeth_set_access_ctrl_online(struct qeth_card *card)
3502 QETH_CARD_TEXT(card, 4, "setactlo");
3504 if ((card->info.type == QETH_CARD_TYPE_OSD ||
3505 card->info.type == QETH_CARD_TYPE_OSX) &&
3506 qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
3507 rc = qeth_setadpparms_set_access_ctrl(card,
3508 card->options.isolation);
3511 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
3512 card->gdev->dev.kobj.name,
3515 } else if (card->options.isolation != ISOLATION_MODE_NONE) {
3516 card->options.isolation = ISOLATION_MODE_NONE;
3518 dev_err(&card->gdev->dev, "Adapter does not "
3519 "support QDIO data connection isolation\n");
3524 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
3526 void qeth_tx_timeout(struct net_device *dev)
3528 struct qeth_card *card;
3530 card = dev->ml_priv;
3531 QETH_CARD_TEXT(card, 4, "txtimeo");
3532 card->stats.tx_errors++;
3533 qeth_schedule_recovery(card);
3535 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
3537 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3539 struct qeth_card *card = dev->ml_priv;
3543 case MII_BMCR: /* Basic mode control register */
3545 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
3546 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
3547 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3548 rc |= BMCR_SPEED100;
3550 case MII_BMSR: /* Basic mode status register */
3551 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3552 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3555 case MII_PHYSID1: /* PHYS ID 1 */
3556 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3558 rc = (rc >> 5) & 0xFFFF;
3560 case MII_PHYSID2: /* PHYS ID 2 */
3561 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3563 case MII_ADVERTISE: /* Advertisement control reg */
3566 case MII_LPA: /* Link partner ability reg */
3567 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3568 LPA_100BASE4 | LPA_LPACK;
3570 case MII_EXPANSION: /* Expansion register */
3572 case MII_DCOUNTER: /* disconnect counter */
3574 case MII_FCSCOUNTER: /* false carrier counter */
3576 case MII_NWAYTEST: /* N-way auto-neg test register */
3578 case MII_RERRCOUNTER: /* rx error counter */
3579 rc = card->stats.rx_errors;
3581 case MII_SREVISION: /* silicon revision */
3583 case MII_RESV1: /* reserved 1 */
3585 case MII_LBRERROR: /* loopback, rx, bypass error */
3587 case MII_PHYADDR: /* physical address */
3589 case MII_RESV2: /* reserved 2 */
3591 case MII_TPISTATUS: /* TPI status for 10mbps */
3593 case MII_NCONFIG: /* network interface config */
3600 EXPORT_SYMBOL_GPL(qeth_mdio_read);
3602 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
3603 struct qeth_cmd_buffer *iob, int len,
3604 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
3610 QETH_CARD_TEXT(card, 4, "sendsnmp");
3612 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
3613 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
3614 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3615 /* adjust PDU length fields in IPA_PDU_HEADER */
3616 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
3618 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
3619 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
3620 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
3621 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
3622 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
3623 reply_cb, reply_param);
3626 static int qeth_snmp_command_cb(struct qeth_card *card,
3627 struct qeth_reply *reply, unsigned long sdata)
3629 struct qeth_ipa_cmd *cmd;
3630 struct qeth_arp_query_info *qinfo;
3631 struct qeth_snmp_cmd *snmp;
3632 unsigned char *data;
3635 QETH_CARD_TEXT(card, 3, "snpcmdcb");
3637 cmd = (struct qeth_ipa_cmd *) sdata;
3638 data = (unsigned char *)((char *)cmd - reply->offset);
3639 qinfo = (struct qeth_arp_query_info *) reply->param;
3640 snmp = &cmd->data.setadapterparms.data.snmp;
3642 if (cmd->hdr.return_code) {
3643 QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code);
3646 if (cmd->data.setadapterparms.hdr.return_code) {
3647 cmd->hdr.return_code =
3648 cmd->data.setadapterparms.hdr.return_code;
3649 QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code);
3652 data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
3653 if (cmd->data.setadapterparms.hdr.seq_no == 1)
3654 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
3656 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
3658 /* check if there is enough room in userspace */
3659 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
3660 QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
3661 cmd->hdr.return_code = -ENOMEM;
3664 QETH_CARD_TEXT_(card, 4, "snore%i",
3665 cmd->data.setadapterparms.hdr.used_total);
3666 QETH_CARD_TEXT_(card, 4, "sseqn%i",
3667 cmd->data.setadapterparms.hdr.seq_no);
3668 /*copy entries to user buffer*/
3669 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
3670 memcpy(qinfo->udata + qinfo->udata_offset,
3672 data_len + offsetof(struct qeth_snmp_cmd, data));
3673 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
3675 memcpy(qinfo->udata + qinfo->udata_offset,
3676 (char *)&snmp->request, data_len);
3678 qinfo->udata_offset += data_len;
3679 /* check if all replies received ... */
3680 QETH_CARD_TEXT_(card, 4, "srtot%i",
3681 cmd->data.setadapterparms.hdr.used_total);
3682 QETH_CARD_TEXT_(card, 4, "srseq%i",
3683 cmd->data.setadapterparms.hdr.seq_no);
3684 if (cmd->data.setadapterparms.hdr.seq_no <
3685 cmd->data.setadapterparms.hdr.used_total)
3690 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
3692 struct qeth_cmd_buffer *iob;
3693 struct qeth_ipa_cmd *cmd;
3694 struct qeth_snmp_ureq *ureq;
3696 struct qeth_arp_query_info qinfo = {0, };
3699 QETH_CARD_TEXT(card, 3, "snmpcmd");
3701 if (card->info.guestlan)
3704 if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
3705 (!card->options.layer2)) {
3708 /* skip 4 bytes (data_len struct member) to get req_len */
3709 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
3711 ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
3713 QETH_CARD_TEXT(card, 2, "snmpnome");
3714 return PTR_ERR(ureq);
3716 qinfo.udata_len = ureq->hdr.data_len;
3717 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
3722 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
3724 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
3725 QETH_SNMP_SETADP_CMDLENGTH + req_len);
3726 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3727 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
3728 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
3729 qeth_snmp_command_cb, (void *)&qinfo);
3731 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
3732 QETH_CARD_IFNAME(card), rc);
3734 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
3742 EXPORT_SYMBOL_GPL(qeth_snmp_command);
3744 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
3746 switch (card->info.type) {
3747 case QETH_CARD_TYPE_IQD:
3754 static void qeth_determine_capabilities(struct qeth_card *card)
3759 struct ccw_device *ddev;
3760 int ddev_offline = 0;
3762 QETH_DBF_TEXT(SETUP, 2, "detcapab");
3763 ddev = CARD_DDEV(card);
3764 if (!ddev->online) {
3766 rc = ccw_device_set_online(ddev);
3768 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3773 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
3775 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
3776 dev_name(&card->gdev->dev), rc);
3777 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3780 qeth_configure_unitaddr(card, prcd);
3781 qeth_configure_blkt_default(card, prcd);
3784 rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
3786 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
3789 if (ddev_offline == 1)
3790 ccw_device_set_offline(ddev);
3795 static int qeth_qdio_establish(struct qeth_card *card)
3797 struct qdio_initialize init_data;
3798 char *qib_param_field;
3799 struct qdio_buffer **in_sbal_ptrs;
3800 struct qdio_buffer **out_sbal_ptrs;
3804 QETH_DBF_TEXT(SETUP, 2, "qdioest");
3806 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3808 if (!qib_param_field)
3811 qeth_create_qib_param_field(card, qib_param_field);
3812 qeth_create_qib_param_field_blkt(card, qib_param_field);
3814 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3816 if (!in_sbal_ptrs) {
3817 kfree(qib_param_field);
3820 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3821 in_sbal_ptrs[i] = (struct qdio_buffer *)
3822 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3825 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3826 sizeof(void *), GFP_KERNEL);
3827 if (!out_sbal_ptrs) {
3828 kfree(in_sbal_ptrs);
3829 kfree(qib_param_field);
3832 for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3833 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
3834 out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
3835 card->qdio.out_qs[i]->bufs[j].buffer);
3838 memset(&init_data, 0, sizeof(struct qdio_initialize));
3839 init_data.cdev = CARD_DDEV(card);
3840 init_data.q_format = qeth_get_qdio_q_format(card);
3841 init_data.qib_param_field_format = 0;
3842 init_data.qib_param_field = qib_param_field;
3843 init_data.no_input_qs = 1;
3844 init_data.no_output_qs = card->qdio.no_out_queues;
3845 init_data.input_handler = card->discipline.input_handler;
3846 init_data.output_handler = card->discipline.output_handler;
3847 init_data.queue_start_poll = card->discipline.start_poll;
3848 init_data.int_parm = (unsigned long) card;
3849 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3850 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3851 init_data.scan_threshold =
3852 (card->info.type == QETH_CARD_TYPE_IQD) ? 8 : 32;
3854 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3855 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
3856 rc = qdio_allocate(&init_data);
3858 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3861 rc = qdio_establish(&init_data);
3863 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3864 qdio_free(CARD_DDEV(card));
3868 kfree(out_sbal_ptrs);
3869 kfree(in_sbal_ptrs);
3870 kfree(qib_param_field);
3874 static void qeth_core_free_card(struct qeth_card *card)
3877 QETH_DBF_TEXT(SETUP, 2, "freecrd");
3878 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3879 qeth_clean_channel(&card->read);
3880 qeth_clean_channel(&card->write);
3882 free_netdev(card->dev);
3883 kfree(card->ip_tbd_list);
3884 qeth_free_qdio_buffers(card);
3885 unregister_service_level(&card->qeth_service_level);
3889 static struct ccw_device_id qeth_ids[] = {
3890 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
3891 .driver_info = QETH_CARD_TYPE_OSD},
3892 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
3893 .driver_info = QETH_CARD_TYPE_IQD},
3894 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
3895 .driver_info = QETH_CARD_TYPE_OSN},
3896 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
3897 .driver_info = QETH_CARD_TYPE_OSM},
3898 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
3899 .driver_info = QETH_CARD_TYPE_OSX},
3902 MODULE_DEVICE_TABLE(ccw, qeth_ids);
3904 static struct ccw_driver qeth_ccw_driver = {
3907 .probe = ccwgroup_probe_ccwdev,
3908 .remove = ccwgroup_remove_ccwdev,
3911 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
3912 unsigned long driver_id)
3914 return ccwgroup_create_from_string(root_dev, driver_id,
3915 &qeth_ccw_driver, 3, buf);
3918 int qeth_core_hardsetup_card(struct qeth_card *card)
3923 QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
3924 atomic_set(&card->force_alloc_skb, 0);
3925 qeth_get_channel_path_desc(card);
3928 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
3929 dev_name(&card->gdev->dev));
3930 ccw_device_set_offline(CARD_DDEV(card));
3931 ccw_device_set_offline(CARD_WDEV(card));
3932 ccw_device_set_offline(CARD_RDEV(card));
3933 rc = ccw_device_set_online(CARD_RDEV(card));
3936 rc = ccw_device_set_online(CARD_WDEV(card));
3939 rc = ccw_device_set_online(CARD_DDEV(card));
3942 rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
3944 if (rc == -ERESTARTSYS) {
3945 QETH_DBF_TEXT(SETUP, 2, "break1");
3948 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3954 qeth_determine_capabilities(card);
3955 qeth_init_tokens(card);
3956 qeth_init_func_level(card);
3957 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
3958 if (rc == -ERESTARTSYS) {
3959 QETH_DBF_TEXT(SETUP, 2, "break2");
3962 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3968 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
3969 if (rc == -ERESTARTSYS) {
3970 QETH_DBF_TEXT(SETUP, 2, "break3");
3973 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3979 card->read_or_write_problem = 0;
3980 rc = qeth_mpc_initialize(card);
3982 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3987 dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
3988 "an error on the device\n");
3989 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
3990 dev_name(&card->gdev->dev), rc);
3993 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
3995 static inline int qeth_create_skb_frag(struct qdio_buffer_element *element,
3996 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
3998 struct page *page = virt_to_page(element->addr);
3999 if (*pskb == NULL) {
4000 /* the upper protocol layers assume that there is data in the
4001 * skb itself. Copy a small amount (64 bytes) to make them
4003 *pskb = dev_alloc_skb(64 + ETH_HLEN);
4006 skb_reserve(*pskb, ETH_HLEN);
4007 if (data_len <= 64) {
4008 memcpy(skb_put(*pskb, data_len), element->addr + offset,
4012 memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
4013 skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
4015 (*pskb)->data_len += data_len - 64;
4016 (*pskb)->len += data_len - 64;
4017 (*pskb)->truesize += data_len - 64;
4022 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
4023 (*pskb)->data_len += data_len;
4024 (*pskb)->len += data_len;
4025 (*pskb)->truesize += data_len;
4031 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
4032 struct qdio_buffer *buffer,
4033 struct qdio_buffer_element **__element, int *__offset,
4034 struct qeth_hdr **hdr)
4036 struct qdio_buffer_element *element = *__element;
4037 int offset = *__offset;
4038 struct sk_buff *skb = NULL;
4046 /* qeth_hdr must not cross element boundaries */
4047 if (element->length < offset + sizeof(struct qeth_hdr)) {
4048 if (qeth_is_last_sbale(element))
4052 if (element->length < sizeof(struct qeth_hdr))
4055 *hdr = element->addr + offset;
4057 offset += sizeof(struct qeth_hdr);
4058 switch ((*hdr)->hdr.l2.id) {
4059 case QETH_HEADER_TYPE_LAYER2:
4060 skb_len = (*hdr)->hdr.l2.pkt_length;
4062 case QETH_HEADER_TYPE_LAYER3:
4063 skb_len = (*hdr)->hdr.l3.length;
4064 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
4065 (card->info.link_type == QETH_LINK_TYPE_HSTR))
4068 headroom = ETH_HLEN;
4070 case QETH_HEADER_TYPE_OSN:
4071 skb_len = (*hdr)->hdr.osn.pdu_length;
4072 headroom = sizeof(struct qeth_hdr);
4081 if ((skb_len >= card->options.rx_sg_cb) &&
4082 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
4083 (!atomic_read(&card->force_alloc_skb))) {
4086 skb = dev_alloc_skb(skb_len + headroom);
4090 skb_reserve(skb, headroom);
4093 data_ptr = element->addr + offset;
4095 data_len = min(skb_len, (int)(element->length - offset));
4098 if (qeth_create_skb_frag(element, &skb, offset,
4102 memcpy(skb_put(skb, data_len), data_ptr,
4106 skb_len -= data_len;
4108 if (qeth_is_last_sbale(element)) {
4109 QETH_CARD_TEXT(card, 4, "unexeob");
4110 QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
4111 dev_kfree_skb_any(skb);
4112 card->stats.rx_errors++;
4117 data_ptr = element->addr;
4122 *__element = element;
4124 if (use_rx_sg && card->options.performance_stats) {
4125 card->perf_stats.sg_skbs_rx++;
4126 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
4130 if (net_ratelimit()) {
4131 QETH_CARD_TEXT(card, 2, "noskbmem");
4133 card->stats.rx_dropped++;
4136 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
4138 static void qeth_unregister_dbf_views(void)
4141 for (x = 0; x < QETH_DBF_INFOS; x++) {
4142 debug_unregister(qeth_dbf[x].id);
4143 qeth_dbf[x].id = NULL;
4147 void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
4149 char dbf_txt_buf[32];
4152 if (level > id->level)
4154 va_start(args, fmt);
4155 vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
4157 debug_text_event(id, level, dbf_txt_buf);
4159 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
4161 static int qeth_register_dbf_views(void)
4166 for (x = 0; x < QETH_DBF_INFOS; x++) {
4167 /* register the areas */
4168 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
4172 if (qeth_dbf[x].id == NULL) {
4173 qeth_unregister_dbf_views();
4177 /* register a view */
4178 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
4180 qeth_unregister_dbf_views();
4184 /* set a passing level */
4185 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
4191 int qeth_core_load_discipline(struct qeth_card *card,
4192 enum qeth_discipline_id discipline)
4195 switch (discipline) {
4196 case QETH_DISCIPLINE_LAYER3:
4197 card->discipline.ccwgdriver = try_then_request_module(
4198 symbol_get(qeth_l3_ccwgroup_driver),
4201 case QETH_DISCIPLINE_LAYER2:
4202 card->discipline.ccwgdriver = try_then_request_module(
4203 symbol_get(qeth_l2_ccwgroup_driver),
4207 if (!card->discipline.ccwgdriver) {
4208 dev_err(&card->gdev->dev, "There is no kernel module to "
4209 "support discipline %d\n", discipline);
4215 void qeth_core_free_discipline(struct qeth_card *card)
4217 if (card->options.layer2)
4218 symbol_put(qeth_l2_ccwgroup_driver);
4220 symbol_put(qeth_l3_ccwgroup_driver);
4221 card->discipline.ccwgdriver = NULL;
4224 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
4226 struct qeth_card *card;
4229 unsigned long flags;
4232 QETH_DBF_TEXT(SETUP, 2, "probedev");
4235 if (!get_device(dev))
4238 QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
4240 card = qeth_alloc_card();
4242 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
4247 snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
4248 dev_name(&gdev->dev));
4249 card->debug = debug_register(dbf_name, 2, 1, 8);
4251 QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
4255 debug_register_view(card->debug, &debug_hex_ascii_view);
4257 card->read.ccwdev = gdev->cdev[0];
4258 card->write.ccwdev = gdev->cdev[1];
4259 card->data.ccwdev = gdev->cdev[2];
4260 dev_set_drvdata(&gdev->dev, card);
4262 gdev->cdev[0]->handler = qeth_irq;
4263 gdev->cdev[1]->handler = qeth_irq;
4264 gdev->cdev[2]->handler = qeth_irq;
4266 rc = qeth_determine_card_type(card);
4268 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4271 rc = qeth_setup_card(card);
4273 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4277 if (card->info.type == QETH_CARD_TYPE_OSN)
4278 rc = qeth_core_create_osn_attributes(dev);
4280 rc = qeth_core_create_device_attributes(dev);
4283 switch (card->info.type) {
4284 case QETH_CARD_TYPE_OSN:
4285 case QETH_CARD_TYPE_OSM:
4286 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
4289 rc = card->discipline.ccwgdriver->probe(card->gdev);
4292 case QETH_CARD_TYPE_OSD:
4293 case QETH_CARD_TYPE_OSX:
4298 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4299 list_add_tail(&card->list, &qeth_core_card_list.list);
4300 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4302 qeth_determine_capabilities(card);
4306 qeth_core_free_discipline(card);
4308 if (card->info.type == QETH_CARD_TYPE_OSN)
4309 qeth_core_remove_osn_attributes(dev);
4311 qeth_core_remove_device_attributes(dev);
4313 debug_unregister(card->debug);
4315 qeth_core_free_card(card);
4321 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
4323 unsigned long flags;
4324 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4326 QETH_DBF_TEXT(SETUP, 2, "removedv");
4328 if (card->info.type == QETH_CARD_TYPE_OSN) {
4329 qeth_core_remove_osn_attributes(&gdev->dev);
4331 qeth_core_remove_device_attributes(&gdev->dev);
4334 if (card->discipline.ccwgdriver) {
4335 card->discipline.ccwgdriver->remove(gdev);
4336 qeth_core_free_discipline(card);
4339 debug_unregister(card->debug);
4340 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4341 list_del(&card->list);
4342 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4343 qeth_core_free_card(card);
4344 dev_set_drvdata(&gdev->dev, NULL);
4345 put_device(&gdev->dev);
4349 static int qeth_core_set_online(struct ccwgroup_device *gdev)
4351 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4355 if (!card->discipline.ccwgdriver) {
4356 if (card->info.type == QETH_CARD_TYPE_IQD)
4357 def_discipline = QETH_DISCIPLINE_LAYER3;
4359 def_discipline = QETH_DISCIPLINE_LAYER2;
4360 rc = qeth_core_load_discipline(card, def_discipline);
4363 rc = card->discipline.ccwgdriver->probe(card->gdev);
4367 rc = card->discipline.ccwgdriver->set_online(gdev);
4372 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
4374 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4375 return card->discipline.ccwgdriver->set_offline(gdev);
4378 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
4380 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4381 if (card->discipline.ccwgdriver &&
4382 card->discipline.ccwgdriver->shutdown)
4383 card->discipline.ccwgdriver->shutdown(gdev);
4386 static int qeth_core_prepare(struct ccwgroup_device *gdev)
4388 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4389 if (card->discipline.ccwgdriver &&
4390 card->discipline.ccwgdriver->prepare)
4391 return card->discipline.ccwgdriver->prepare(gdev);
4395 static void qeth_core_complete(struct ccwgroup_device *gdev)
4397 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4398 if (card->discipline.ccwgdriver &&
4399 card->discipline.ccwgdriver->complete)
4400 card->discipline.ccwgdriver->complete(gdev);
4403 static int qeth_core_freeze(struct ccwgroup_device *gdev)
4405 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4406 if (card->discipline.ccwgdriver &&
4407 card->discipline.ccwgdriver->freeze)
4408 return card->discipline.ccwgdriver->freeze(gdev);
4412 static int qeth_core_thaw(struct ccwgroup_device *gdev)
4414 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4415 if (card->discipline.ccwgdriver &&
4416 card->discipline.ccwgdriver->thaw)
4417 return card->discipline.ccwgdriver->thaw(gdev);
4421 static int qeth_core_restore(struct ccwgroup_device *gdev)
4423 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4424 if (card->discipline.ccwgdriver &&
4425 card->discipline.ccwgdriver->restore)
4426 return card->discipline.ccwgdriver->restore(gdev);
4430 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
4431 .owner = THIS_MODULE,
4433 .driver_id = 0xD8C5E3C8,
4434 .probe = qeth_core_probe_device,
4435 .remove = qeth_core_remove_device,
4436 .set_online = qeth_core_set_online,
4437 .set_offline = qeth_core_set_offline,
4438 .shutdown = qeth_core_shutdown,
4439 .prepare = qeth_core_prepare,
4440 .complete = qeth_core_complete,
4441 .freeze = qeth_core_freeze,
4442 .thaw = qeth_core_thaw,
4443 .restore = qeth_core_restore,
4447 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
4451 err = qeth_core_driver_group(buf, qeth_core_root_dev,
4452 qeth_core_ccwgroup_driver.driver_id);
4459 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
4462 const char str[ETH_GSTRING_LEN];
4463 } qeth_ethtool_stats_keys[] = {
4468 {"tx skbs no packing"},
4469 {"tx buffers no packing"},
4470 {"tx skbs packing"},
4471 {"tx buffers packing"},
4474 /* 10 */{"rx sg skbs"},
4476 {"rx sg page allocs"},
4477 {"tx large kbytes"},
4479 {"tx pk state ch n->p"},
4480 {"tx pk state ch p->n"},
4481 {"tx pk watermark low"},
4482 {"tx pk watermark high"},
4483 {"queue 0 buffer usage"},
4484 /* 20 */{"queue 1 buffer usage"},
4485 {"queue 2 buffer usage"},
4486 {"queue 3 buffer usage"},
4489 {"rx do_QDIO time"},
4490 {"rx do_QDIO count"},
4491 {"tx handler time"},
4492 {"tx handler count"},
4494 /* 30 */{"tx count"},
4495 {"tx do_QDIO time"},
4496 {"tx do_QDIO count"},
4501 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
4503 switch (stringset) {
4505 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
4510 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
4512 void qeth_core_get_ethtool_stats(struct net_device *dev,
4513 struct ethtool_stats *stats, u64 *data)
4515 struct qeth_card *card = dev->ml_priv;
4516 data[0] = card->stats.rx_packets -
4517 card->perf_stats.initial_rx_packets;
4518 data[1] = card->perf_stats.bufs_rec;
4519 data[2] = card->stats.tx_packets -
4520 card->perf_stats.initial_tx_packets;
4521 data[3] = card->perf_stats.bufs_sent;
4522 data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
4523 - card->perf_stats.skbs_sent_pack;
4524 data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
4525 data[6] = card->perf_stats.skbs_sent_pack;
4526 data[7] = card->perf_stats.bufs_sent_pack;
4527 data[8] = card->perf_stats.sg_skbs_sent;
4528 data[9] = card->perf_stats.sg_frags_sent;
4529 data[10] = card->perf_stats.sg_skbs_rx;
4530 data[11] = card->perf_stats.sg_frags_rx;
4531 data[12] = card->perf_stats.sg_alloc_page_rx;
4532 data[13] = (card->perf_stats.large_send_bytes >> 10);
4533 data[14] = card->perf_stats.large_send_cnt;
4534 data[15] = card->perf_stats.sc_dp_p;
4535 data[16] = card->perf_stats.sc_p_dp;
4536 data[17] = QETH_LOW_WATERMARK_PACK;
4537 data[18] = QETH_HIGH_WATERMARK_PACK;
4538 data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
4539 data[20] = (card->qdio.no_out_queues > 1) ?
4540 atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
4541 data[21] = (card->qdio.no_out_queues > 2) ?
4542 atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
4543 data[22] = (card->qdio.no_out_queues > 3) ?
4544 atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
4545 data[23] = card->perf_stats.inbound_time;
4546 data[24] = card->perf_stats.inbound_cnt;
4547 data[25] = card->perf_stats.inbound_do_qdio_time;
4548 data[26] = card->perf_stats.inbound_do_qdio_cnt;
4549 data[27] = card->perf_stats.outbound_handler_time;
4550 data[28] = card->perf_stats.outbound_handler_cnt;
4551 data[29] = card->perf_stats.outbound_time;
4552 data[30] = card->perf_stats.outbound_cnt;
4553 data[31] = card->perf_stats.outbound_do_qdio_time;
4554 data[32] = card->perf_stats.outbound_do_qdio_cnt;
4555 data[33] = card->perf_stats.tx_csum;
4556 data[34] = card->perf_stats.tx_lin;
4558 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
4560 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
4562 switch (stringset) {
4564 memcpy(data, &qeth_ethtool_stats_keys,
4565 sizeof(qeth_ethtool_stats_keys));
4572 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
4574 void qeth_core_get_drvinfo(struct net_device *dev,
4575 struct ethtool_drvinfo *info)
4577 struct qeth_card *card = dev->ml_priv;
4578 if (card->options.layer2)
4579 strcpy(info->driver, "qeth_l2");
4581 strcpy(info->driver, "qeth_l3");
4583 strcpy(info->version, "1.0");
4584 strcpy(info->fw_version, card->info.mcl_level);
4585 sprintf(info->bus_info, "%s/%s/%s",
4588 CARD_DDEV_ID(card));
4590 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
4592 int qeth_core_ethtool_get_settings(struct net_device *netdev,
4593 struct ethtool_cmd *ecmd)
4595 struct qeth_card *card = netdev->ml_priv;
4596 enum qeth_link_types link_type;
4598 if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
4599 link_type = QETH_LINK_TYPE_10GBIT_ETH;
4601 link_type = card->info.link_type;
4603 ecmd->transceiver = XCVR_INTERNAL;
4604 ecmd->supported = SUPPORTED_Autoneg;
4605 ecmd->advertising = ADVERTISED_Autoneg;
4606 ecmd->duplex = DUPLEX_FULL;
4607 ecmd->autoneg = AUTONEG_ENABLE;
4609 switch (link_type) {
4610 case QETH_LINK_TYPE_FAST_ETH:
4611 case QETH_LINK_TYPE_LANE_ETH100:
4612 ecmd->supported |= SUPPORTED_10baseT_Half |
4613 SUPPORTED_10baseT_Full |
4614 SUPPORTED_100baseT_Half |
4615 SUPPORTED_100baseT_Full |
4617 ecmd->advertising |= ADVERTISED_10baseT_Half |
4618 ADVERTISED_10baseT_Full |
4619 ADVERTISED_100baseT_Half |
4620 ADVERTISED_100baseT_Full |
4622 ecmd->speed = SPEED_100;
4623 ecmd->port = PORT_TP;
4626 case QETH_LINK_TYPE_GBIT_ETH:
4627 case QETH_LINK_TYPE_LANE_ETH1000:
4628 ecmd->supported |= SUPPORTED_10baseT_Half |
4629 SUPPORTED_10baseT_Full |
4630 SUPPORTED_100baseT_Half |
4631 SUPPORTED_100baseT_Full |
4632 SUPPORTED_1000baseT_Half |
4633 SUPPORTED_1000baseT_Full |
4635 ecmd->advertising |= ADVERTISED_10baseT_Half |
4636 ADVERTISED_10baseT_Full |
4637 ADVERTISED_100baseT_Half |
4638 ADVERTISED_100baseT_Full |
4639 ADVERTISED_1000baseT_Half |
4640 ADVERTISED_1000baseT_Full |
4642 ecmd->speed = SPEED_1000;
4643 ecmd->port = PORT_FIBRE;
4646 case QETH_LINK_TYPE_10GBIT_ETH:
4647 ecmd->supported |= SUPPORTED_10baseT_Half |
4648 SUPPORTED_10baseT_Full |
4649 SUPPORTED_100baseT_Half |
4650 SUPPORTED_100baseT_Full |
4651 SUPPORTED_1000baseT_Half |
4652 SUPPORTED_1000baseT_Full |
4653 SUPPORTED_10000baseT_Full |
4655 ecmd->advertising |= ADVERTISED_10baseT_Half |
4656 ADVERTISED_10baseT_Full |
4657 ADVERTISED_100baseT_Half |
4658 ADVERTISED_100baseT_Full |
4659 ADVERTISED_1000baseT_Half |
4660 ADVERTISED_1000baseT_Full |
4661 ADVERTISED_10000baseT_Full |
4663 ecmd->speed = SPEED_10000;
4664 ecmd->port = PORT_FIBRE;
4668 ecmd->supported |= SUPPORTED_10baseT_Half |
4669 SUPPORTED_10baseT_Full |
4671 ecmd->advertising |= ADVERTISED_10baseT_Half |
4672 ADVERTISED_10baseT_Full |
4674 ecmd->speed = SPEED_10;
4675 ecmd->port = PORT_TP;
4680 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
4682 static int __init qeth_core_init(void)
4686 pr_info("loading core functions\n");
4687 INIT_LIST_HEAD(&qeth_core_card_list.list);
4688 rwlock_init(&qeth_core_card_list.rwlock);
4690 rc = qeth_register_dbf_views();
4693 rc = ccw_driver_register(&qeth_ccw_driver);
4696 rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
4699 rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
4700 &driver_attr_group);
4703 qeth_core_root_dev = root_device_register("qeth");
4704 rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
4708 qeth_core_header_cache = kmem_cache_create("qeth_hdr",
4709 sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
4710 if (!qeth_core_header_cache) {
4717 root_device_unregister(qeth_core_root_dev);
4719 driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4720 &driver_attr_group);
4722 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4724 ccw_driver_unregister(&qeth_ccw_driver);
4726 QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc);
4727 qeth_unregister_dbf_views();
4729 pr_err("Initializing the qeth device driver failed\n");
4733 static void __exit qeth_core_exit(void)
4735 root_device_unregister(qeth_core_root_dev);
4736 driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4737 &driver_attr_group);
4738 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4739 ccw_driver_unregister(&qeth_ccw_driver);
4740 kmem_cache_destroy(qeth_core_header_cache);
4741 qeth_unregister_dbf_views();
4742 pr_info("core functions removed\n");
4745 module_init(qeth_core_init);
4746 module_exit(qeth_core_exit);
4747 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
4748 MODULE_DESCRIPTION("qeth core functions");
4749 MODULE_LICENSE("GPL");