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 returned x%X \"%s\"\n",
306 ipa_name, com, QETH_CARD_IFNAME(card),
307 rc, qeth_get_ipa_msg(rc));
309 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n",
310 ipa_name, com, QETH_CARD_IFNAME(card));
313 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
314 struct qeth_cmd_buffer *iob)
316 struct qeth_ipa_cmd *cmd = NULL;
318 QETH_CARD_TEXT(card, 5, "chkipad");
319 if (IS_IPA(iob->data)) {
320 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
321 if (IS_IPA_REPLY(cmd)) {
322 if (cmd->hdr.command != IPA_CMD_SETCCID &&
323 cmd->hdr.command != IPA_CMD_DELCCID &&
324 cmd->hdr.command != IPA_CMD_MODCCID &&
325 cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
326 qeth_issue_ipa_msg(cmd,
327 cmd->hdr.return_code, card);
330 switch (cmd->hdr.command) {
331 case IPA_CMD_STOPLAN:
332 dev_warn(&card->gdev->dev,
333 "The link for interface %s on CHPID"
335 QETH_CARD_IFNAME(card),
337 card->lan_online = 0;
338 if (card->dev && netif_carrier_ok(card->dev))
339 netif_carrier_off(card->dev);
341 case IPA_CMD_STARTLAN:
342 dev_info(&card->gdev->dev,
343 "The link for %s on CHPID 0x%X has"
345 QETH_CARD_IFNAME(card),
347 netif_carrier_on(card->dev);
348 card->lan_online = 1;
349 qeth_schedule_recovery(card);
351 case IPA_CMD_MODCCID:
353 case IPA_CMD_REGISTER_LOCAL_ADDR:
354 QETH_CARD_TEXT(card, 3, "irla");
356 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
357 QETH_CARD_TEXT(card, 3, "urla");
360 QETH_DBF_MESSAGE(2, "Received data is IPA "
361 "but not a reply!\n");
369 void qeth_clear_ipacmd_list(struct qeth_card *card)
371 struct qeth_reply *reply, *r;
374 QETH_CARD_TEXT(card, 4, "clipalst");
376 spin_lock_irqsave(&card->lock, flags);
377 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
378 qeth_get_reply(reply);
380 atomic_inc(&reply->received);
381 list_del_init(&reply->list);
382 wake_up(&reply->wait_q);
383 qeth_put_reply(reply);
385 spin_unlock_irqrestore(&card->lock, flags);
386 atomic_set(&card->write.irq_pending, 0);
388 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
390 static int qeth_check_idx_response(struct qeth_card *card,
391 unsigned char *buffer)
396 QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
397 if ((buffer[2] & 0xc0) == 0xc0) {
398 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
399 "with cause code 0x%02x%s\n",
401 ((buffer[4] == 0x22) ?
402 " -- try another portname" : ""));
403 QETH_CARD_TEXT(card, 2, "ckidxres");
404 QETH_CARD_TEXT(card, 2, " idxterm");
405 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
406 if (buffer[4] == 0xf6) {
407 dev_err(&card->gdev->dev,
408 "The qeth device is not configured "
409 "for the OSI layer required by z/VM\n");
417 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
420 struct qeth_card *card;
422 card = CARD_FROM_CDEV(channel->ccwdev);
423 QETH_CARD_TEXT(card, 4, "setupccw");
424 if (channel == &card->read)
425 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
427 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
428 channel->ccw.count = len;
429 channel->ccw.cda = (__u32) __pa(iob);
432 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
436 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
437 index = channel->io_buf_no;
439 if (channel->iob[index].state == BUF_STATE_FREE) {
440 channel->iob[index].state = BUF_STATE_LOCKED;
441 channel->io_buf_no = (channel->io_buf_no + 1) %
443 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
444 return channel->iob + index;
446 index = (index + 1) % QETH_CMD_BUFFER_NO;
447 } while (index != channel->io_buf_no);
452 void qeth_release_buffer(struct qeth_channel *channel,
453 struct qeth_cmd_buffer *iob)
457 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
458 spin_lock_irqsave(&channel->iob_lock, flags);
459 memset(iob->data, 0, QETH_BUFSIZE);
460 iob->state = BUF_STATE_FREE;
461 iob->callback = qeth_send_control_data_cb;
463 spin_unlock_irqrestore(&channel->iob_lock, flags);
465 EXPORT_SYMBOL_GPL(qeth_release_buffer);
467 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
469 struct qeth_cmd_buffer *buffer = NULL;
472 spin_lock_irqsave(&channel->iob_lock, flags);
473 buffer = __qeth_get_buffer(channel);
474 spin_unlock_irqrestore(&channel->iob_lock, flags);
478 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
480 struct qeth_cmd_buffer *buffer;
481 wait_event(channel->wait_q,
482 ((buffer = qeth_get_buffer(channel)) != NULL));
485 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
487 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
491 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
492 qeth_release_buffer(channel, &channel->iob[cnt]);
494 channel->io_buf_no = 0;
496 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
498 static void qeth_send_control_data_cb(struct qeth_channel *channel,
499 struct qeth_cmd_buffer *iob)
501 struct qeth_card *card;
502 struct qeth_reply *reply, *r;
503 struct qeth_ipa_cmd *cmd;
508 card = CARD_FROM_CDEV(channel->ccwdev);
509 QETH_CARD_TEXT(card, 4, "sndctlcb");
510 rc = qeth_check_idx_response(card, iob->data);
515 qeth_clear_ipacmd_list(card);
516 qeth_schedule_recovery(card);
522 cmd = qeth_check_ipa_data(card, iob);
523 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
525 /*in case of OSN : check if cmd is set */
526 if (card->info.type == QETH_CARD_TYPE_OSN &&
528 cmd->hdr.command != IPA_CMD_STARTLAN &&
529 card->osn_info.assist_cb != NULL) {
530 card->osn_info.assist_cb(card->dev, cmd);
534 spin_lock_irqsave(&card->lock, flags);
535 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
536 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
537 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
538 qeth_get_reply(reply);
539 list_del_init(&reply->list);
540 spin_unlock_irqrestore(&card->lock, flags);
542 if (reply->callback != NULL) {
544 reply->offset = (__u16)((char *)cmd -
546 keep_reply = reply->callback(card,
550 keep_reply = reply->callback(card,
555 reply->rc = (u16) cmd->hdr.return_code;
559 spin_lock_irqsave(&card->lock, flags);
560 list_add_tail(&reply->list,
561 &card->cmd_waiter_list);
562 spin_unlock_irqrestore(&card->lock, flags);
564 atomic_inc(&reply->received);
565 wake_up(&reply->wait_q);
567 qeth_put_reply(reply);
571 spin_unlock_irqrestore(&card->lock, flags);
573 memcpy(&card->seqno.pdu_hdr_ack,
574 QETH_PDU_HEADER_SEQ_NO(iob->data),
576 qeth_release_buffer(channel, iob);
579 static int qeth_setup_channel(struct qeth_channel *channel)
583 QETH_DBF_TEXT(SETUP, 2, "setupch");
584 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
585 channel->iob[cnt].data =
586 kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
587 if (channel->iob[cnt].data == NULL)
589 channel->iob[cnt].state = BUF_STATE_FREE;
590 channel->iob[cnt].channel = channel;
591 channel->iob[cnt].callback = qeth_send_control_data_cb;
592 channel->iob[cnt].rc = 0;
594 if (cnt < QETH_CMD_BUFFER_NO) {
596 kfree(channel->iob[cnt].data);
600 channel->io_buf_no = 0;
601 atomic_set(&channel->irq_pending, 0);
602 spin_lock_init(&channel->iob_lock);
604 init_waitqueue_head(&channel->wait_q);
608 static int qeth_set_thread_start_bit(struct qeth_card *card,
609 unsigned long thread)
613 spin_lock_irqsave(&card->thread_mask_lock, flags);
614 if (!(card->thread_allowed_mask & thread) ||
615 (card->thread_start_mask & thread)) {
616 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
619 card->thread_start_mask |= thread;
620 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
624 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
628 spin_lock_irqsave(&card->thread_mask_lock, flags);
629 card->thread_start_mask &= ~thread;
630 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
631 wake_up(&card->wait_q);
633 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
635 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
639 spin_lock_irqsave(&card->thread_mask_lock, flags);
640 card->thread_running_mask &= ~thread;
641 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
642 wake_up(&card->wait_q);
644 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
646 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
651 spin_lock_irqsave(&card->thread_mask_lock, flags);
652 if (card->thread_start_mask & thread) {
653 if ((card->thread_allowed_mask & thread) &&
654 !(card->thread_running_mask & thread)) {
656 card->thread_start_mask &= ~thread;
657 card->thread_running_mask |= thread;
661 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
665 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
669 wait_event(card->wait_q,
670 (rc = __qeth_do_run_thread(card, thread)) >= 0);
673 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
675 void qeth_schedule_recovery(struct qeth_card *card)
677 QETH_CARD_TEXT(card, 2, "startrec");
678 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
679 schedule_work(&card->kernel_thread_starter);
681 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
683 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
687 struct qeth_card *card;
689 sense = (char *) irb->ecw;
690 cstat = irb->scsw.cmd.cstat;
691 dstat = irb->scsw.cmd.dstat;
692 card = CARD_FROM_CDEV(cdev);
694 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
695 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
696 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
697 QETH_CARD_TEXT(card, 2, "CGENCHK");
698 dev_warn(&cdev->dev, "The qeth device driver "
699 "failed to recover an error on the device\n");
700 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
701 dev_name(&cdev->dev), dstat, cstat);
702 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
707 if (dstat & DEV_STAT_UNIT_CHECK) {
708 if (sense[SENSE_RESETTING_EVENT_BYTE] &
709 SENSE_RESETTING_EVENT_FLAG) {
710 QETH_CARD_TEXT(card, 2, "REVIND");
713 if (sense[SENSE_COMMAND_REJECT_BYTE] &
714 SENSE_COMMAND_REJECT_FLAG) {
715 QETH_CARD_TEXT(card, 2, "CMDREJi");
718 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
719 QETH_CARD_TEXT(card, 2, "AFFE");
722 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
723 QETH_CARD_TEXT(card, 2, "ZEROSEN");
726 QETH_CARD_TEXT(card, 2, "DGENCHK");
732 static long __qeth_check_irb_error(struct ccw_device *cdev,
733 unsigned long intparm, struct irb *irb)
735 struct qeth_card *card;
737 card = CARD_FROM_CDEV(cdev);
742 switch (PTR_ERR(irb)) {
744 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
745 dev_name(&cdev->dev));
746 QETH_CARD_TEXT(card, 2, "ckirberr");
747 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
750 dev_warn(&cdev->dev, "A hardware operation timed out"
752 QETH_CARD_TEXT(card, 2, "ckirberr");
753 QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT);
754 if (intparm == QETH_RCD_PARM) {
755 if (card && (card->data.ccwdev == cdev)) {
756 card->data.state = CH_STATE_DOWN;
757 wake_up(&card->wait_q);
762 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
763 dev_name(&cdev->dev), PTR_ERR(irb));
764 QETH_CARD_TEXT(card, 2, "ckirberr");
765 QETH_CARD_TEXT(card, 2, " rc???");
770 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
775 struct qeth_cmd_buffer *buffer;
776 struct qeth_channel *channel;
777 struct qeth_card *card;
778 struct qeth_cmd_buffer *iob;
781 if (__qeth_check_irb_error(cdev, intparm, irb))
783 cstat = irb->scsw.cmd.cstat;
784 dstat = irb->scsw.cmd.dstat;
786 card = CARD_FROM_CDEV(cdev);
790 QETH_CARD_TEXT(card, 5, "irq");
792 if (card->read.ccwdev == cdev) {
793 channel = &card->read;
794 QETH_CARD_TEXT(card, 5, "read");
795 } else if (card->write.ccwdev == cdev) {
796 channel = &card->write;
797 QETH_CARD_TEXT(card, 5, "write");
799 channel = &card->data;
800 QETH_CARD_TEXT(card, 5, "data");
802 atomic_set(&channel->irq_pending, 0);
804 if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
805 channel->state = CH_STATE_STOPPED;
807 if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
808 channel->state = CH_STATE_HALTED;
810 /*let's wake up immediately on data channel*/
811 if ((channel == &card->data) && (intparm != 0) &&
812 (intparm != QETH_RCD_PARM))
815 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
816 QETH_CARD_TEXT(card, 6, "clrchpar");
817 /* we don't have to handle this further */
820 if (intparm == QETH_HALT_CHANNEL_PARM) {
821 QETH_CARD_TEXT(card, 6, "hltchpar");
822 /* we don't have to handle this further */
825 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
826 (dstat & DEV_STAT_UNIT_CHECK) ||
828 if (irb->esw.esw0.erw.cons) {
829 dev_warn(&channel->ccwdev->dev,
830 "The qeth device driver failed to recover "
831 "an error on the device\n");
832 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
834 dev_name(&channel->ccwdev->dev), cstat, dstat);
835 print_hex_dump(KERN_WARNING, "qeth: irb ",
836 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
837 print_hex_dump(KERN_WARNING, "qeth: sense data ",
838 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
840 if (intparm == QETH_RCD_PARM) {
841 channel->state = CH_STATE_DOWN;
844 rc = qeth_get_problem(cdev, irb);
846 qeth_clear_ipacmd_list(card);
847 qeth_schedule_recovery(card);
852 if (intparm == QETH_RCD_PARM) {
853 channel->state = CH_STATE_RCD_DONE;
857 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
858 buffer->state = BUF_STATE_PROCESSED;
860 if (channel == &card->data)
862 if (channel == &card->read &&
863 channel->state == CH_STATE_UP)
864 qeth_issue_next_read(card);
867 index = channel->buf_no;
868 while (iob[index].state == BUF_STATE_PROCESSED) {
869 if (iob[index].callback != NULL)
870 iob[index].callback(channel, iob + index);
872 index = (index + 1) % QETH_CMD_BUFFER_NO;
874 channel->buf_no = index;
876 wake_up(&card->wait_q);
880 static void __qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
881 struct qeth_qdio_out_buffer *buf, unsigned int qeth_skip_skb)
886 /* is PCI flag set on buffer? */
887 if (buf->buffer->element[0].flags & 0x40)
888 atomic_dec(&queue->set_pci_flags_count);
890 if (!qeth_skip_skb) {
891 skb = skb_dequeue(&buf->skb_list);
893 atomic_dec(&skb->users);
894 dev_kfree_skb_any(skb);
895 skb = skb_dequeue(&buf->skb_list);
898 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
899 if (buf->buffer->element[i].addr && buf->is_header[i])
900 kmem_cache_free(qeth_core_header_cache,
901 buf->buffer->element[i].addr);
902 buf->is_header[i] = 0;
903 buf->buffer->element[i].length = 0;
904 buf->buffer->element[i].addr = NULL;
905 buf->buffer->element[i].flags = 0;
907 buf->buffer->element[15].flags = 0;
908 buf->next_element_to_fill = 0;
909 atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
912 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
913 struct qeth_qdio_out_buffer *buf)
915 __qeth_clear_output_buffer(queue, buf, 0);
918 void qeth_clear_qdio_buffers(struct qeth_card *card)
922 QETH_CARD_TEXT(card, 2, "clearqdbf");
923 /* clear outbound buffers to free skbs */
924 for (i = 0; i < card->qdio.no_out_queues; ++i)
925 if (card->qdio.out_qs[i]) {
926 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
927 qeth_clear_output_buffer(card->qdio.out_qs[i],
928 &card->qdio.out_qs[i]->bufs[j]);
931 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
933 static void qeth_free_buffer_pool(struct qeth_card *card)
935 struct qeth_buffer_pool_entry *pool_entry, *tmp;
937 list_for_each_entry_safe(pool_entry, tmp,
938 &card->qdio.init_pool.entry_list, init_list){
939 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
940 free_page((unsigned long)pool_entry->elements[i]);
941 list_del(&pool_entry->init_list);
946 static void qeth_free_qdio_buffers(struct qeth_card *card)
950 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
951 QETH_QDIO_UNINITIALIZED)
953 kfree(card->qdio.in_q);
954 card->qdio.in_q = NULL;
955 /* inbound buffer pool */
956 qeth_free_buffer_pool(card);
957 /* free outbound qdio_qs */
958 if (card->qdio.out_qs) {
959 for (i = 0; i < card->qdio.no_out_queues; ++i) {
960 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
961 qeth_clear_output_buffer(card->qdio.out_qs[i],
962 &card->qdio.out_qs[i]->bufs[j]);
963 kfree(card->qdio.out_qs[i]);
965 kfree(card->qdio.out_qs);
966 card->qdio.out_qs = NULL;
970 static void qeth_clean_channel(struct qeth_channel *channel)
974 QETH_DBF_TEXT(SETUP, 2, "freech");
975 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
976 kfree(channel->iob[cnt].data);
979 static void qeth_get_channel_path_desc(struct qeth_card *card)
981 struct ccw_device *ccwdev;
982 struct channelPath_dsc {
993 QETH_DBF_TEXT(SETUP, 2, "chp_desc");
995 ccwdev = card->data.ccwdev;
996 chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
997 if (chp_dsc != NULL) {
998 /* CHPP field bit 6 == 1 -> single queue */
999 if ((chp_dsc->chpp & 0x02) == 0x02)
1000 card->qdio.no_out_queues = 1;
1001 card->info.func_level = 0x4100 + chp_dsc->desc;
1004 if (card->qdio.no_out_queues == 1) {
1005 card->qdio.default_out_queue = 0;
1006 dev_info(&card->gdev->dev,
1007 "Priority Queueing not supported\n");
1009 QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
1010 QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
1014 static void qeth_init_qdio_info(struct qeth_card *card)
1016 QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1017 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1019 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1020 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1021 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1022 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1023 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1026 static void qeth_set_intial_options(struct qeth_card *card)
1028 card->options.route4.type = NO_ROUTER;
1029 card->options.route6.type = NO_ROUTER;
1030 card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1031 card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1032 card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1033 card->options.fake_broadcast = 0;
1034 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1035 card->options.performance_stats = 0;
1036 card->options.rx_sg_cb = QETH_RX_SG_CB;
1037 card->options.isolation = ISOLATION_MODE_NONE;
1040 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1042 unsigned long flags;
1045 spin_lock_irqsave(&card->thread_mask_lock, flags);
1046 QETH_CARD_TEXT_(card, 4, " %02x%02x%02x",
1047 (u8) card->thread_start_mask,
1048 (u8) card->thread_allowed_mask,
1049 (u8) card->thread_running_mask);
1050 rc = (card->thread_start_mask & thread);
1051 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1055 static void qeth_start_kernel_thread(struct work_struct *work)
1057 struct qeth_card *card = container_of(work, struct qeth_card,
1058 kernel_thread_starter);
1059 QETH_CARD_TEXT(card , 2, "strthrd");
1061 if (card->read.state != CH_STATE_UP &&
1062 card->write.state != CH_STATE_UP)
1064 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1065 kthread_run(card->discipline.recover, (void *) card,
1069 static int qeth_setup_card(struct qeth_card *card)
1072 QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1073 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1075 card->read.state = CH_STATE_DOWN;
1076 card->write.state = CH_STATE_DOWN;
1077 card->data.state = CH_STATE_DOWN;
1078 card->state = CARD_STATE_DOWN;
1079 card->lan_online = 0;
1080 card->use_hard_stop = 0;
1081 card->read_or_write_problem = 0;
1083 spin_lock_init(&card->vlanlock);
1084 spin_lock_init(&card->mclock);
1085 card->vlangrp = NULL;
1086 spin_lock_init(&card->lock);
1087 spin_lock_init(&card->ip_lock);
1088 spin_lock_init(&card->thread_mask_lock);
1089 mutex_init(&card->conf_mutex);
1090 mutex_init(&card->discipline_mutex);
1091 card->thread_start_mask = 0;
1092 card->thread_allowed_mask = 0;
1093 card->thread_running_mask = 0;
1094 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1095 INIT_LIST_HEAD(&card->ip_list);
1096 INIT_LIST_HEAD(card->ip_tbd_list);
1097 INIT_LIST_HEAD(&card->cmd_waiter_list);
1098 init_waitqueue_head(&card->wait_q);
1099 /* intial options */
1100 qeth_set_intial_options(card);
1101 /* IP address takeover */
1102 INIT_LIST_HEAD(&card->ipato.entries);
1103 card->ipato.enabled = 0;
1104 card->ipato.invert4 = 0;
1105 card->ipato.invert6 = 0;
1106 /* init QDIO stuff */
1107 qeth_init_qdio_info(card);
1111 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1113 struct qeth_card *card = container_of(slr, struct qeth_card,
1114 qeth_service_level);
1115 if (card->info.mcl_level[0])
1116 seq_printf(m, "qeth: %s firmware level %s\n",
1117 CARD_BUS_ID(card), card->info.mcl_level);
1120 static struct qeth_card *qeth_alloc_card(void)
1122 struct qeth_card *card;
1124 QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1125 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1128 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1129 card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1130 if (!card->ip_tbd_list) {
1131 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1134 if (qeth_setup_channel(&card->read))
1136 if (qeth_setup_channel(&card->write))
1138 card->options.layer2 = -1;
1139 card->qeth_service_level.seq_print = qeth_core_sl_print;
1140 register_service_level(&card->qeth_service_level);
1144 qeth_clean_channel(&card->read);
1146 kfree(card->ip_tbd_list);
1153 static int qeth_determine_card_type(struct qeth_card *card)
1157 QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1159 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1160 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1161 while (known_devices[i][QETH_DEV_MODEL_IND]) {
1162 if ((CARD_RDEV(card)->id.dev_type ==
1163 known_devices[i][QETH_DEV_TYPE_IND]) &&
1164 (CARD_RDEV(card)->id.dev_model ==
1165 known_devices[i][QETH_DEV_MODEL_IND])) {
1166 card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
1167 card->qdio.no_out_queues =
1168 known_devices[i][QETH_QUEUE_NO_IND];
1169 card->info.is_multicast_different =
1170 known_devices[i][QETH_MULTICAST_IND];
1171 qeth_get_channel_path_desc(card);
1176 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1177 dev_err(&card->gdev->dev, "The adapter hardware is of an "
1182 static int qeth_clear_channel(struct qeth_channel *channel)
1184 unsigned long flags;
1185 struct qeth_card *card;
1188 card = CARD_FROM_CDEV(channel->ccwdev);
1189 QETH_CARD_TEXT(card, 3, "clearch");
1190 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1191 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1192 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1196 rc = wait_event_interruptible_timeout(card->wait_q,
1197 channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1198 if (rc == -ERESTARTSYS)
1200 if (channel->state != CH_STATE_STOPPED)
1202 channel->state = CH_STATE_DOWN;
1206 static int qeth_halt_channel(struct qeth_channel *channel)
1208 unsigned long flags;
1209 struct qeth_card *card;
1212 card = CARD_FROM_CDEV(channel->ccwdev);
1213 QETH_CARD_TEXT(card, 3, "haltch");
1214 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1215 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1216 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1220 rc = wait_event_interruptible_timeout(card->wait_q,
1221 channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1222 if (rc == -ERESTARTSYS)
1224 if (channel->state != CH_STATE_HALTED)
1229 static int qeth_halt_channels(struct qeth_card *card)
1231 int rc1 = 0, rc2 = 0, rc3 = 0;
1233 QETH_CARD_TEXT(card, 3, "haltchs");
1234 rc1 = qeth_halt_channel(&card->read);
1235 rc2 = qeth_halt_channel(&card->write);
1236 rc3 = qeth_halt_channel(&card->data);
1244 static int qeth_clear_channels(struct qeth_card *card)
1246 int rc1 = 0, rc2 = 0, rc3 = 0;
1248 QETH_CARD_TEXT(card, 3, "clearchs");
1249 rc1 = qeth_clear_channel(&card->read);
1250 rc2 = qeth_clear_channel(&card->write);
1251 rc3 = qeth_clear_channel(&card->data);
1259 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1263 QETH_CARD_TEXT(card, 3, "clhacrd");
1266 rc = qeth_halt_channels(card);
1269 return qeth_clear_channels(card);
1272 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1276 QETH_CARD_TEXT(card, 3, "qdioclr");
1277 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1278 QETH_QDIO_CLEANING)) {
1279 case QETH_QDIO_ESTABLISHED:
1280 if (card->info.type == QETH_CARD_TYPE_IQD)
1281 rc = qdio_shutdown(CARD_DDEV(card),
1282 QDIO_FLAG_CLEANUP_USING_HALT);
1284 rc = qdio_shutdown(CARD_DDEV(card),
1285 QDIO_FLAG_CLEANUP_USING_CLEAR);
1287 QETH_CARD_TEXT_(card, 3, "1err%d", rc);
1288 qdio_free(CARD_DDEV(card));
1289 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1291 case QETH_QDIO_CLEANING:
1296 rc = qeth_clear_halt_card(card, use_halt);
1298 QETH_CARD_TEXT_(card, 3, "2err%d", rc);
1299 card->state = CARD_STATE_DOWN;
1302 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1304 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1310 struct qeth_channel *channel = &card->data;
1311 unsigned long flags;
1314 * scan for RCD command in extended SenseID data
1316 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1317 if (!ciw || ciw->cmd == 0)
1319 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1323 channel->ccw.cmd_code = ciw->cmd;
1324 channel->ccw.cda = (__u32) __pa(rcd_buf);
1325 channel->ccw.count = ciw->count;
1326 channel->ccw.flags = CCW_FLAG_SLI;
1327 channel->state = CH_STATE_RCD;
1328 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1329 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1330 QETH_RCD_PARM, LPM_ANYPATH, 0,
1332 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1334 wait_event(card->wait_q,
1335 (channel->state == CH_STATE_RCD_DONE ||
1336 channel->state == CH_STATE_DOWN));
1337 if (channel->state == CH_STATE_DOWN)
1340 channel->state = CH_STATE_DOWN;
1346 *length = ciw->count;
1352 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1354 QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1355 card->info.chpid = prcd[30];
1356 card->info.unit_addr2 = prcd[31];
1357 card->info.cula = prcd[63];
1358 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1359 (prcd[0x11] == _ascebc['M']));
1362 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1364 QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1366 if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) {
1367 card->info.blkt.time_total = 250;
1368 card->info.blkt.inter_packet = 5;
1369 card->info.blkt.inter_packet_jumbo = 15;
1371 card->info.blkt.time_total = 0;
1372 card->info.blkt.inter_packet = 0;
1373 card->info.blkt.inter_packet_jumbo = 0;
1377 static void qeth_init_tokens(struct qeth_card *card)
1379 card->token.issuer_rm_w = 0x00010103UL;
1380 card->token.cm_filter_w = 0x00010108UL;
1381 card->token.cm_connection_w = 0x0001010aUL;
1382 card->token.ulp_filter_w = 0x0001010bUL;
1383 card->token.ulp_connection_w = 0x0001010dUL;
1386 static void qeth_init_func_level(struct qeth_card *card)
1388 switch (card->info.type) {
1389 case QETH_CARD_TYPE_IQD:
1390 card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
1392 case QETH_CARD_TYPE_OSD:
1393 case QETH_CARD_TYPE_OSN:
1394 card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
1401 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1402 void (*idx_reply_cb)(struct qeth_channel *,
1403 struct qeth_cmd_buffer *))
1405 struct qeth_cmd_buffer *iob;
1406 unsigned long flags;
1408 struct qeth_card *card;
1410 QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1411 card = CARD_FROM_CDEV(channel->ccwdev);
1412 iob = qeth_get_buffer(channel);
1413 iob->callback = idx_reply_cb;
1414 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1415 channel->ccw.count = QETH_BUFSIZE;
1416 channel->ccw.cda = (__u32) __pa(iob->data);
1418 wait_event(card->wait_q,
1419 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1420 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1421 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1422 rc = ccw_device_start(channel->ccwdev,
1423 &channel->ccw, (addr_t) iob, 0, 0);
1424 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1427 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1428 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1429 atomic_set(&channel->irq_pending, 0);
1430 wake_up(&card->wait_q);
1433 rc = wait_event_interruptible_timeout(card->wait_q,
1434 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1435 if (rc == -ERESTARTSYS)
1437 if (channel->state != CH_STATE_UP) {
1439 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1440 qeth_clear_cmd_buffers(channel);
1446 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1447 void (*idx_reply_cb)(struct qeth_channel *,
1448 struct qeth_cmd_buffer *))
1450 struct qeth_card *card;
1451 struct qeth_cmd_buffer *iob;
1452 unsigned long flags;
1456 struct ccw_dev_id temp_devid;
1458 card = CARD_FROM_CDEV(channel->ccwdev);
1460 QETH_DBF_TEXT(SETUP, 2, "idxactch");
1462 iob = qeth_get_buffer(channel);
1463 iob->callback = idx_reply_cb;
1464 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1465 channel->ccw.count = IDX_ACTIVATE_SIZE;
1466 channel->ccw.cda = (__u32) __pa(iob->data);
1467 if (channel == &card->write) {
1468 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1469 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1470 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1471 card->seqno.trans_hdr++;
1473 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1474 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1475 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1477 tmp = ((__u8)card->info.portno) | 0x80;
1478 memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1479 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1480 &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1481 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1482 &card->info.func_level, sizeof(__u16));
1483 ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1484 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1485 temp = (card->info.cula << 8) + card->info.unit_addr2;
1486 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1488 wait_event(card->wait_q,
1489 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1490 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1491 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1492 rc = ccw_device_start(channel->ccwdev,
1493 &channel->ccw, (addr_t) iob, 0, 0);
1494 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1497 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1499 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1500 atomic_set(&channel->irq_pending, 0);
1501 wake_up(&card->wait_q);
1504 rc = wait_event_interruptible_timeout(card->wait_q,
1505 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1506 if (rc == -ERESTARTSYS)
1508 if (channel->state != CH_STATE_ACTIVATING) {
1509 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1510 " failed to recover an error on the device\n");
1511 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1512 dev_name(&channel->ccwdev->dev));
1513 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1514 qeth_clear_cmd_buffers(channel);
1517 return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1520 static int qeth_peer_func_level(int level)
1522 if ((level & 0xff) == 8)
1523 return (level & 0xff) + 0x400;
1524 if (((level >> 8) & 3) == 1)
1525 return (level & 0xff) + 0x200;
1529 static void qeth_idx_write_cb(struct qeth_channel *channel,
1530 struct qeth_cmd_buffer *iob)
1532 struct qeth_card *card;
1535 QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1537 if (channel->state == CH_STATE_DOWN) {
1538 channel->state = CH_STATE_ACTIVATING;
1541 card = CARD_FROM_CDEV(channel->ccwdev);
1543 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1544 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
1545 dev_err(&card->write.ccwdev->dev,
1546 "The adapter is used exclusively by another "
1549 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1550 " negative reply\n",
1551 dev_name(&card->write.ccwdev->dev));
1554 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1555 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1556 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1557 "function level mismatch (sent: 0x%x, received: "
1558 "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1559 card->info.func_level, temp);
1562 channel->state = CH_STATE_UP;
1564 qeth_release_buffer(channel, iob);
1567 static void qeth_idx_read_cb(struct qeth_channel *channel,
1568 struct qeth_cmd_buffer *iob)
1570 struct qeth_card *card;
1573 QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1574 if (channel->state == CH_STATE_DOWN) {
1575 channel->state = CH_STATE_ACTIVATING;
1579 card = CARD_FROM_CDEV(channel->ccwdev);
1580 if (qeth_check_idx_response(card, iob->data))
1583 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1584 switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
1585 case QETH_IDX_ACT_ERR_EXCL:
1586 dev_err(&card->write.ccwdev->dev,
1587 "The adapter is used exclusively by another "
1590 case QETH_IDX_ACT_ERR_AUTH:
1591 case QETH_IDX_ACT_ERR_AUTH_USER:
1592 dev_err(&card->read.ccwdev->dev,
1593 "Setting the device online failed because of "
1594 "insufficient authorization\n");
1597 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1598 " negative reply\n",
1599 dev_name(&card->read.ccwdev->dev));
1601 QETH_CARD_TEXT_(card, 2, "idxread%c",
1602 QETH_IDX_ACT_CAUSE_CODE(iob->data));
1607 * * temporary fix for microcode bug
1608 * * to revert it,replace OR by AND
1610 if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1611 (card->info.type == QETH_CARD_TYPE_OSD))
1612 card->info.portname_required = 1;
1614 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1615 if (temp != qeth_peer_func_level(card->info.func_level)) {
1616 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1617 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1618 dev_name(&card->read.ccwdev->dev),
1619 card->info.func_level, temp);
1622 memcpy(&card->token.issuer_rm_r,
1623 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1624 QETH_MPC_TOKEN_LENGTH);
1625 memcpy(&card->info.mcl_level[0],
1626 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1627 channel->state = CH_STATE_UP;
1629 qeth_release_buffer(channel, iob);
1632 void qeth_prepare_control_data(struct qeth_card *card, int len,
1633 struct qeth_cmd_buffer *iob)
1635 qeth_setup_ccw(&card->write, iob->data, len);
1636 iob->callback = qeth_release_buffer;
1638 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1639 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1640 card->seqno.trans_hdr++;
1641 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1642 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1643 card->seqno.pdu_hdr++;
1644 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1645 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1646 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1648 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1650 int qeth_send_control_data(struct qeth_card *card, int len,
1651 struct qeth_cmd_buffer *iob,
1652 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1657 unsigned long flags;
1658 struct qeth_reply *reply = NULL;
1659 unsigned long timeout, event_timeout;
1660 struct qeth_ipa_cmd *cmd;
1662 QETH_CARD_TEXT(card, 2, "sendctl");
1664 if (card->read_or_write_problem) {
1665 qeth_release_buffer(iob->channel, iob);
1668 reply = qeth_alloc_reply(card);
1672 reply->callback = reply_cb;
1673 reply->param = reply_param;
1674 if (card->state == CARD_STATE_DOWN)
1675 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1677 reply->seqno = card->seqno.ipa++;
1678 init_waitqueue_head(&reply->wait_q);
1679 spin_lock_irqsave(&card->lock, flags);
1680 list_add_tail(&reply->list, &card->cmd_waiter_list);
1681 spin_unlock_irqrestore(&card->lock, flags);
1682 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1684 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1685 qeth_prepare_control_data(card, len, iob);
1687 if (IS_IPA(iob->data))
1688 event_timeout = QETH_IPA_TIMEOUT;
1690 event_timeout = QETH_TIMEOUT;
1691 timeout = jiffies + event_timeout;
1693 QETH_CARD_TEXT(card, 6, "noirqpnd");
1694 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1695 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1696 (addr_t) iob, 0, 0);
1697 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1699 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
1700 "ccw_device_start rc = %i\n",
1701 dev_name(&card->write.ccwdev->dev), rc);
1702 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1703 spin_lock_irqsave(&card->lock, flags);
1704 list_del_init(&reply->list);
1705 qeth_put_reply(reply);
1706 spin_unlock_irqrestore(&card->lock, flags);
1707 qeth_release_buffer(iob->channel, iob);
1708 atomic_set(&card->write.irq_pending, 0);
1709 wake_up(&card->wait_q);
1713 /* we have only one long running ipassist, since we can ensure
1714 process context of this command we can sleep */
1715 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1716 if ((cmd->hdr.command == IPA_CMD_SETIP) &&
1717 (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
1718 if (!wait_event_timeout(reply->wait_q,
1719 atomic_read(&reply->received), event_timeout))
1722 while (!atomic_read(&reply->received)) {
1723 if (time_after(jiffies, timeout))
1730 qeth_put_reply(reply);
1734 spin_lock_irqsave(&reply->card->lock, flags);
1735 list_del_init(&reply->list);
1736 spin_unlock_irqrestore(&reply->card->lock, flags);
1738 atomic_inc(&reply->received);
1739 atomic_set(&card->write.irq_pending, 0);
1740 qeth_release_buffer(iob->channel, iob);
1741 card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
1742 wake_up(&reply->wait_q);
1744 qeth_put_reply(reply);
1747 EXPORT_SYMBOL_GPL(qeth_send_control_data);
1749 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1752 struct qeth_cmd_buffer *iob;
1754 QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
1756 iob = (struct qeth_cmd_buffer *) data;
1757 memcpy(&card->token.cm_filter_r,
1758 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1759 QETH_MPC_TOKEN_LENGTH);
1760 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1764 static int qeth_cm_enable(struct qeth_card *card)
1767 struct qeth_cmd_buffer *iob;
1769 QETH_DBF_TEXT(SETUP, 2, "cmenable");
1771 iob = qeth_wait_for_buffer(&card->write);
1772 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1773 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1774 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1775 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1776 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1778 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1779 qeth_cm_enable_cb, NULL);
1783 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1787 struct qeth_cmd_buffer *iob;
1789 QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
1791 iob = (struct qeth_cmd_buffer *) data;
1792 memcpy(&card->token.cm_connection_r,
1793 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1794 QETH_MPC_TOKEN_LENGTH);
1795 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1799 static int qeth_cm_setup(struct qeth_card *card)
1802 struct qeth_cmd_buffer *iob;
1804 QETH_DBF_TEXT(SETUP, 2, "cmsetup");
1806 iob = qeth_wait_for_buffer(&card->write);
1807 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1808 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1809 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1810 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1811 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1812 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1813 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1814 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1815 qeth_cm_setup_cb, NULL);
1820 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
1822 switch (card->info.type) {
1823 case QETH_CARD_TYPE_UNKNOWN:
1825 case QETH_CARD_TYPE_IQD:
1826 return card->info.max_mtu;
1827 case QETH_CARD_TYPE_OSD:
1828 switch (card->info.link_type) {
1829 case QETH_LINK_TYPE_HSTR:
1830 case QETH_LINK_TYPE_LANE_TR:
1835 case QETH_CARD_TYPE_OSM:
1836 case QETH_CARD_TYPE_OSX:
1843 static inline int qeth_get_max_mtu_for_card(int cardtype)
1847 case QETH_CARD_TYPE_UNKNOWN:
1848 case QETH_CARD_TYPE_OSD:
1849 case QETH_CARD_TYPE_OSN:
1850 case QETH_CARD_TYPE_OSM:
1851 case QETH_CARD_TYPE_OSX:
1853 case QETH_CARD_TYPE_IQD:
1860 static inline int qeth_get_mtu_out_of_mpc(int cardtype)
1863 case QETH_CARD_TYPE_IQD:
1870 static inline int qeth_get_mtu_outof_framesize(int framesize)
1872 switch (framesize) {
1886 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
1888 switch (card->info.type) {
1889 case QETH_CARD_TYPE_OSD:
1890 case QETH_CARD_TYPE_OSM:
1891 case QETH_CARD_TYPE_OSX:
1892 return ((mtu >= 576) && (mtu <= 61440));
1893 case QETH_CARD_TYPE_IQD:
1894 return ((mtu >= 576) &&
1895 (mtu <= card->info.max_mtu + 4096 - 32));
1896 case QETH_CARD_TYPE_OSN:
1897 case QETH_CARD_TYPE_UNKNOWN:
1903 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1907 __u16 mtu, framesize;
1910 struct qeth_cmd_buffer *iob;
1912 QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
1914 iob = (struct qeth_cmd_buffer *) data;
1915 memcpy(&card->token.ulp_filter_r,
1916 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1917 QETH_MPC_TOKEN_LENGTH);
1918 if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1919 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1920 mtu = qeth_get_mtu_outof_framesize(framesize);
1923 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1926 card->info.max_mtu = mtu;
1927 card->info.initial_mtu = mtu;
1928 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1930 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1931 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1932 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1935 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1936 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1938 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1939 card->info.link_type = link_type;
1941 card->info.link_type = 0;
1942 QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
1943 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
1947 static int qeth_ulp_enable(struct qeth_card *card)
1951 struct qeth_cmd_buffer *iob;
1953 /*FIXME: trace view callbacks*/
1954 QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
1956 iob = qeth_wait_for_buffer(&card->write);
1957 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1959 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1960 (__u8) card->info.portno;
1961 if (card->options.layer2)
1962 if (card->info.type == QETH_CARD_TYPE_OSN)
1963 prot_type = QETH_PROT_OSN2;
1965 prot_type = QETH_PROT_LAYER2;
1967 prot_type = QETH_PROT_TCPIP;
1969 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
1970 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1971 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1972 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1973 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1974 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1975 card->info.portname, 9);
1976 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1977 qeth_ulp_enable_cb, NULL);
1982 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1985 struct qeth_cmd_buffer *iob;
1988 QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
1990 iob = (struct qeth_cmd_buffer *) data;
1991 memcpy(&card->token.ulp_connection_r,
1992 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1993 QETH_MPC_TOKEN_LENGTH);
1994 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1996 QETH_DBF_TEXT(SETUP, 2, "olmlimit");
1997 dev_err(&card->gdev->dev, "A connection could not be "
1998 "established because of an OLM limit\n");
2001 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2005 static int qeth_ulp_setup(struct qeth_card *card)
2009 struct qeth_cmd_buffer *iob;
2010 struct ccw_dev_id dev_id;
2012 QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2014 iob = qeth_wait_for_buffer(&card->write);
2015 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2017 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2018 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2019 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2020 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2021 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2022 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2024 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2025 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2026 temp = (card->info.cula << 8) + card->info.unit_addr2;
2027 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2028 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2029 qeth_ulp_setup_cb, NULL);
2033 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2037 QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2039 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2040 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2043 card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
2045 if (!card->qdio.in_q)
2047 QETH_DBF_TEXT(SETUP, 2, "inq");
2048 QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
2049 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2050 /* give inbound qeth_qdio_buffers their qdio_buffers */
2051 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2052 card->qdio.in_q->bufs[i].buffer =
2053 &card->qdio.in_q->qdio_bufs[i];
2054 /* inbound buffer pool */
2055 if (qeth_alloc_buffer_pool(card))
2059 kmalloc(card->qdio.no_out_queues *
2060 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2061 if (!card->qdio.out_qs)
2063 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2064 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2066 if (!card->qdio.out_qs[i])
2068 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2069 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2070 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2071 card->qdio.out_qs[i]->queue_no = i;
2072 /* give outbound qeth_qdio_buffers their qdio_buffers */
2073 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2074 card->qdio.out_qs[i]->bufs[j].buffer =
2075 &card->qdio.out_qs[i]->qdio_bufs[j];
2076 skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2079 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
2080 &qdio_out_skb_queue_key);
2081 INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
2088 kfree(card->qdio.out_qs[--i]);
2089 kfree(card->qdio.out_qs);
2090 card->qdio.out_qs = NULL;
2092 qeth_free_buffer_pool(card);
2094 kfree(card->qdio.in_q);
2095 card->qdio.in_q = NULL;
2097 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2101 static void qeth_create_qib_param_field(struct qeth_card *card,
2105 param_field[0] = _ascebc['P'];
2106 param_field[1] = _ascebc['C'];
2107 param_field[2] = _ascebc['I'];
2108 param_field[3] = _ascebc['T'];
2109 *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card);
2110 *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card);
2111 *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card);
2114 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2117 param_field[16] = _ascebc['B'];
2118 param_field[17] = _ascebc['L'];
2119 param_field[18] = _ascebc['K'];
2120 param_field[19] = _ascebc['T'];
2121 *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total;
2122 *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet;
2123 *((unsigned int *) (¶m_field[28])) =
2124 card->info.blkt.inter_packet_jumbo;
2127 static int qeth_qdio_activate(struct qeth_card *card)
2129 QETH_DBF_TEXT(SETUP, 3, "qdioact");
2130 return qdio_activate(CARD_DDEV(card));
2133 static int qeth_dm_act(struct qeth_card *card)
2136 struct qeth_cmd_buffer *iob;
2138 QETH_DBF_TEXT(SETUP, 2, "dmact");
2140 iob = qeth_wait_for_buffer(&card->write);
2141 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2143 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2144 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2145 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2146 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2147 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2151 static int qeth_mpc_initialize(struct qeth_card *card)
2155 QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2157 rc = qeth_issue_next_read(card);
2159 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2162 rc = qeth_cm_enable(card);
2164 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2167 rc = qeth_cm_setup(card);
2169 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2172 rc = qeth_ulp_enable(card);
2174 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2177 rc = qeth_ulp_setup(card);
2179 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2182 rc = qeth_alloc_qdio_buffers(card);
2184 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2187 rc = qeth_qdio_establish(card);
2189 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2190 qeth_free_qdio_buffers(card);
2193 rc = qeth_qdio_activate(card);
2195 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2198 rc = qeth_dm_act(card);
2200 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2206 qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2210 static void qeth_print_status_with_portname(struct qeth_card *card)
2215 sprintf(dbf_text, "%s", card->info.portname + 1);
2216 for (i = 0; i < 8; i++)
2218 (char) _ebcasc[(__u8) dbf_text[i]];
2220 dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n"
2221 "with link type %s (portname: %s)\n",
2222 qeth_get_cardname(card),
2223 (card->info.mcl_level[0]) ? " (level: " : "",
2224 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2225 (card->info.mcl_level[0]) ? ")" : "",
2226 qeth_get_cardname_short(card),
2231 static void qeth_print_status_no_portname(struct qeth_card *card)
2233 if (card->info.portname[0])
2234 dev_info(&card->gdev->dev, "Device is a%s "
2235 "card%s%s%s\nwith link type %s "
2236 "(no portname needed by interface).\n",
2237 qeth_get_cardname(card),
2238 (card->info.mcl_level[0]) ? " (level: " : "",
2239 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2240 (card->info.mcl_level[0]) ? ")" : "",
2241 qeth_get_cardname_short(card));
2243 dev_info(&card->gdev->dev, "Device is a%s "
2244 "card%s%s%s\nwith link type %s.\n",
2245 qeth_get_cardname(card),
2246 (card->info.mcl_level[0]) ? " (level: " : "",
2247 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2248 (card->info.mcl_level[0]) ? ")" : "",
2249 qeth_get_cardname_short(card));
2252 void qeth_print_status_message(struct qeth_card *card)
2254 switch (card->info.type) {
2255 case QETH_CARD_TYPE_OSD:
2256 case QETH_CARD_TYPE_OSM:
2257 case QETH_CARD_TYPE_OSX:
2258 /* VM will use a non-zero first character
2259 * to indicate a HiperSockets like reporting
2260 * of the level OSA sets the first character to zero
2262 if (!card->info.mcl_level[0]) {
2263 sprintf(card->info.mcl_level, "%02x%02x",
2264 card->info.mcl_level[2],
2265 card->info.mcl_level[3]);
2267 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2271 case QETH_CARD_TYPE_IQD:
2272 if ((card->info.guestlan) ||
2273 (card->info.mcl_level[0] & 0x80)) {
2274 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2275 card->info.mcl_level[0]];
2276 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2277 card->info.mcl_level[1]];
2278 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2279 card->info.mcl_level[2]];
2280 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2281 card->info.mcl_level[3]];
2282 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2286 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2288 if (card->info.portname_required)
2289 qeth_print_status_with_portname(card);
2291 qeth_print_status_no_portname(card);
2293 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2295 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2297 struct qeth_buffer_pool_entry *entry;
2299 QETH_CARD_TEXT(card, 5, "inwrklst");
2301 list_for_each_entry(entry,
2302 &card->qdio.init_pool.entry_list, init_list) {
2303 qeth_put_buffer_pool_entry(card, entry);
2307 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2308 struct qeth_card *card)
2310 struct list_head *plh;
2311 struct qeth_buffer_pool_entry *entry;
2315 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2318 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2319 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2321 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2322 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2328 list_del_init(&entry->list);
2333 /* no free buffer in pool so take first one and swap pages */
2334 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2335 struct qeth_buffer_pool_entry, list);
2336 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2337 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2338 page = alloc_page(GFP_ATOMIC);
2342 free_page((unsigned long)entry->elements[i]);
2343 entry->elements[i] = page_address(page);
2344 if (card->options.performance_stats)
2345 card->perf_stats.sg_alloc_page_rx++;
2349 list_del_init(&entry->list);
2353 static int qeth_init_input_buffer(struct qeth_card *card,
2354 struct qeth_qdio_buffer *buf)
2356 struct qeth_buffer_pool_entry *pool_entry;
2359 pool_entry = qeth_find_free_buffer_pool_entry(card);
2364 * since the buffer is accessed only from the input_tasklet
2365 * there shouldn't be a need to synchronize; also, since we use
2366 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2370 buf->pool_entry = pool_entry;
2371 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2372 buf->buffer->element[i].length = PAGE_SIZE;
2373 buf->buffer->element[i].addr = pool_entry->elements[i];
2374 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2375 buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2377 buf->buffer->element[i].flags = 0;
2382 int qeth_init_qdio_queues(struct qeth_card *card)
2387 QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2390 memset(card->qdio.in_q->qdio_bufs, 0,
2391 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2392 qeth_initialize_working_pool_list(card);
2393 /*give only as many buffers to hardware as we have buffer pool entries*/
2394 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2395 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2396 card->qdio.in_q->next_buf_to_init =
2397 card->qdio.in_buf_pool.buf_count - 1;
2398 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2399 card->qdio.in_buf_pool.buf_count - 1);
2401 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2404 /* outbound queue */
2405 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2406 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2407 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2408 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2409 qeth_clear_output_buffer(card->qdio.out_qs[i],
2410 &card->qdio.out_qs[i]->bufs[j]);
2412 card->qdio.out_qs[i]->card = card;
2413 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2414 card->qdio.out_qs[i]->do_pack = 0;
2415 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2416 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2417 atomic_set(&card->qdio.out_qs[i]->state,
2418 QETH_OUT_Q_UNLOCKED);
2422 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2424 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2426 switch (link_type) {
2427 case QETH_LINK_TYPE_HSTR:
2434 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2435 struct qeth_ipa_cmd *cmd, __u8 command,
2436 enum qeth_prot_versions prot)
2438 memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2439 cmd->hdr.command = command;
2440 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2441 cmd->hdr.seqno = card->seqno.ipa;
2442 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2443 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2444 if (card->options.layer2)
2445 cmd->hdr.prim_version_no = 2;
2447 cmd->hdr.prim_version_no = 1;
2448 cmd->hdr.param_count = 1;
2449 cmd->hdr.prot_version = prot;
2450 cmd->hdr.ipa_supported = 0;
2451 cmd->hdr.ipa_enabled = 0;
2454 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2455 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2457 struct qeth_cmd_buffer *iob;
2458 struct qeth_ipa_cmd *cmd;
2460 iob = qeth_wait_for_buffer(&card->write);
2461 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2462 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2466 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2468 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2471 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2472 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2473 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2474 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2476 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2478 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2479 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2486 QETH_CARD_TEXT(card, 4, "sendipa");
2488 if (card->options.layer2)
2489 if (card->info.type == QETH_CARD_TYPE_OSN)
2490 prot_type = QETH_PROT_OSN2;
2492 prot_type = QETH_PROT_LAYER2;
2494 prot_type = QETH_PROT_TCPIP;
2495 qeth_prepare_ipa_cmd(card, iob, prot_type);
2496 rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2497 iob, reply_cb, reply_param);
2499 qeth_clear_ipacmd_list(card);
2500 qeth_schedule_recovery(card);
2504 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2506 static int qeth_send_startstoplan(struct qeth_card *card,
2507 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2510 struct qeth_cmd_buffer *iob;
2512 iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
2513 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2518 int qeth_send_startlan(struct qeth_card *card)
2522 QETH_DBF_TEXT(SETUP, 2, "strtlan");
2524 rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
2527 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2529 int qeth_send_stoplan(struct qeth_card *card)
2534 * TODO: according to the IPA format document page 14,
2535 * TCP/IP (we!) never issue a STOPLAN
2538 QETH_DBF_TEXT(SETUP, 2, "stoplan");
2540 rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
2543 EXPORT_SYMBOL_GPL(qeth_send_stoplan);
2545 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2546 struct qeth_reply *reply, unsigned long data)
2548 struct qeth_ipa_cmd *cmd;
2550 QETH_CARD_TEXT(card, 4, "defadpcb");
2552 cmd = (struct qeth_ipa_cmd *) data;
2553 if (cmd->hdr.return_code == 0)
2554 cmd->hdr.return_code =
2555 cmd->data.setadapterparms.hdr.return_code;
2558 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2560 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2561 struct qeth_reply *reply, unsigned long data)
2563 struct qeth_ipa_cmd *cmd;
2565 QETH_CARD_TEXT(card, 3, "quyadpcb");
2567 cmd = (struct qeth_ipa_cmd *) data;
2568 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
2569 card->info.link_type =
2570 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2571 QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
2573 card->options.adp.supported_funcs =
2574 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2575 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2578 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2579 __u32 command, __u32 cmdlen)
2581 struct qeth_cmd_buffer *iob;
2582 struct qeth_ipa_cmd *cmd;
2584 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2586 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2587 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2588 cmd->data.setadapterparms.hdr.command_code = command;
2589 cmd->data.setadapterparms.hdr.used_total = 1;
2590 cmd->data.setadapterparms.hdr.seq_no = 1;
2594 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2596 int qeth_query_setadapterparms(struct qeth_card *card)
2599 struct qeth_cmd_buffer *iob;
2601 QETH_CARD_TEXT(card, 3, "queryadp");
2602 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2603 sizeof(struct qeth_ipacmd_setadpparms));
2604 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2607 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2609 int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
2610 unsigned int qdio_error, const char *dbftext)
2613 QETH_CARD_TEXT(card, 2, dbftext);
2614 QETH_CARD_TEXT_(card, 2, " F15=%02X",
2615 buf->element[15].flags & 0xff);
2616 QETH_CARD_TEXT_(card, 2, " F14=%02X",
2617 buf->element[14].flags & 0xff);
2618 QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
2619 if ((buf->element[15].flags & 0xff) == 0x12) {
2620 card->stats.rx_dropped++;
2627 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
2629 void qeth_queue_input_buffer(struct qeth_card *card, int index)
2631 struct qeth_qdio_q *queue = card->qdio.in_q;
2637 count = (index < queue->next_buf_to_init)?
2638 card->qdio.in_buf_pool.buf_count -
2639 (queue->next_buf_to_init - index) :
2640 card->qdio.in_buf_pool.buf_count -
2641 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2642 /* only requeue at a certain threshold to avoid SIGAs */
2643 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
2644 for (i = queue->next_buf_to_init;
2645 i < queue->next_buf_to_init + count; ++i) {
2646 if (qeth_init_input_buffer(card,
2647 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2654 if (newcount < count) {
2655 /* we are in memory shortage so we switch back to
2656 traditional skb allocation and drop packages */
2657 atomic_set(&card->force_alloc_skb, 3);
2660 atomic_add_unless(&card->force_alloc_skb, -1, 0);
2664 * according to old code it should be avoided to requeue all
2665 * 128 buffers in order to benefit from PCI avoidance.
2666 * this function keeps at least one buffer (the buffer at
2667 * 'index') un-requeued -> this buffer is the first buffer that
2668 * will be requeued the next time
2670 if (card->options.performance_stats) {
2671 card->perf_stats.inbound_do_qdio_cnt++;
2672 card->perf_stats.inbound_do_qdio_start_time =
2675 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
2676 queue->next_buf_to_init, count);
2677 if (card->options.performance_stats)
2678 card->perf_stats.inbound_do_qdio_time +=
2680 card->perf_stats.inbound_do_qdio_start_time;
2682 dev_warn(&card->gdev->dev,
2683 "QDIO reported an error, rc=%i\n", rc);
2684 QETH_CARD_TEXT(card, 2, "qinberr");
2686 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2687 QDIO_MAX_BUFFERS_PER_Q;
2690 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
2692 static int qeth_handle_send_error(struct qeth_card *card,
2693 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
2695 int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2697 QETH_CARD_TEXT(card, 6, "hdsnderr");
2698 if (card->info.type == QETH_CARD_TYPE_IQD) {
2705 qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
2708 return QETH_SEND_ERROR_NONE;
2710 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2711 return QETH_SEND_ERROR_RETRY;
2713 QETH_CARD_TEXT(card, 1, "lnkfail");
2714 QETH_CARD_TEXT_(card, 1, "%04x %02x",
2715 (u16)qdio_err, (u8)sbalf15);
2716 return QETH_SEND_ERROR_LINK_FAILURE;
2720 * Switched to packing state if the number of used buffers on a queue
2721 * reaches a certain limit.
2723 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2725 if (!queue->do_pack) {
2726 if (atomic_read(&queue->used_buffers)
2727 >= QETH_HIGH_WATERMARK_PACK){
2728 /* switch non-PACKING -> PACKING */
2729 QETH_CARD_TEXT(queue->card, 6, "np->pack");
2730 if (queue->card->options.performance_stats)
2731 queue->card->perf_stats.sc_dp_p++;
2738 * Switches from packing to non-packing mode. If there is a packing
2739 * buffer on the queue this buffer will be prepared to be flushed.
2740 * In that case 1 is returned to inform the caller. If no buffer
2741 * has to be flushed, zero is returned.
2743 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2745 struct qeth_qdio_out_buffer *buffer;
2746 int flush_count = 0;
2748 if (queue->do_pack) {
2749 if (atomic_read(&queue->used_buffers)
2750 <= QETH_LOW_WATERMARK_PACK) {
2751 /* switch PACKING -> non-PACKING */
2752 QETH_CARD_TEXT(queue->card, 6, "pack->np");
2753 if (queue->card->options.performance_stats)
2754 queue->card->perf_stats.sc_p_dp++;
2756 /* flush packing buffers */
2757 buffer = &queue->bufs[queue->next_buf_to_fill];
2758 if ((atomic_read(&buffer->state) ==
2759 QETH_QDIO_BUF_EMPTY) &&
2760 (buffer->next_element_to_fill > 0)) {
2761 atomic_set(&buffer->state,
2762 QETH_QDIO_BUF_PRIMED);
2764 queue->next_buf_to_fill =
2765 (queue->next_buf_to_fill + 1) %
2766 QDIO_MAX_BUFFERS_PER_Q;
2774 * Called to flush a packing buffer if no more pci flags are on the queue.
2775 * Checks if there is a packing buffer and prepares it to be flushed.
2776 * In that case returns 1, otherwise zero.
2778 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2780 struct qeth_qdio_out_buffer *buffer;
2782 buffer = &queue->bufs[queue->next_buf_to_fill];
2783 if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2784 (buffer->next_element_to_fill > 0)) {
2785 /* it's a packing buffer */
2786 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2787 queue->next_buf_to_fill =
2788 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2794 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
2797 struct qeth_qdio_out_buffer *buf;
2800 unsigned int qdio_flags;
2802 for (i = index; i < index + count; ++i) {
2803 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2804 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2805 SBAL_FLAGS_LAST_ENTRY;
2807 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2810 if (!queue->do_pack) {
2811 if ((atomic_read(&queue->used_buffers) >=
2812 (QETH_HIGH_WATERMARK_PACK -
2813 QETH_WATERMARK_PACK_FUZZ)) &&
2814 !atomic_read(&queue->set_pci_flags_count)) {
2815 /* it's likely that we'll go to packing
2817 atomic_inc(&queue->set_pci_flags_count);
2818 buf->buffer->element[0].flags |= 0x40;
2821 if (!atomic_read(&queue->set_pci_flags_count)) {
2823 * there's no outstanding PCI any more, so we
2824 * have to request a PCI to be sure the the PCI
2825 * will wake at some time in the future then we
2826 * can flush packed buffers that might still be
2827 * hanging around, which can happen if no
2828 * further send was requested by the stack
2830 atomic_inc(&queue->set_pci_flags_count);
2831 buf->buffer->element[0].flags |= 0x40;
2836 queue->sync_iqdio_error = 0;
2837 queue->card->dev->trans_start = jiffies;
2838 if (queue->card->options.performance_stats) {
2839 queue->card->perf_stats.outbound_do_qdio_cnt++;
2840 queue->card->perf_stats.outbound_do_qdio_start_time =
2843 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2844 if (atomic_read(&queue->set_pci_flags_count))
2845 qdio_flags |= QDIO_FLAG_PCI_OUT;
2846 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2847 queue->queue_no, index, count);
2848 if (queue->card->options.performance_stats)
2849 queue->card->perf_stats.outbound_do_qdio_time +=
2851 queue->card->perf_stats.outbound_do_qdio_start_time;
2853 if (!(rc & QDIO_ERROR_SIGA_BUSY))
2854 queue->sync_iqdio_error = rc & 3;
2857 queue->card->stats.tx_errors += count;
2858 /* ignore temporary SIGA errors without busy condition */
2859 if (rc == QDIO_ERROR_SIGA_TARGET)
2861 QETH_CARD_TEXT(queue->card, 2, "flushbuf");
2862 QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
2864 /* this must not happen under normal circumstances. if it
2865 * happens something is really wrong -> recover */
2866 qeth_schedule_recovery(queue->card);
2869 atomic_add(count, &queue->used_buffers);
2870 if (queue->card->options.performance_stats)
2871 queue->card->perf_stats.bufs_sent += count;
2874 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2878 int q_was_packing = 0;
2881 * check if weed have to switch to non-packing mode or if
2882 * we have to get a pci flag out on the queue
2884 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2885 !atomic_read(&queue->set_pci_flags_count)) {
2886 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2887 QETH_OUT_Q_UNLOCKED) {
2889 * If we get in here, there was no action in
2890 * do_send_packet. So, we check if there is a
2891 * packing buffer to be flushed here.
2893 netif_stop_queue(queue->card->dev);
2894 index = queue->next_buf_to_fill;
2895 q_was_packing = queue->do_pack;
2896 /* queue->do_pack may change */
2898 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2900 !atomic_read(&queue->set_pci_flags_count))
2902 qeth_flush_buffers_on_no_pci(queue);
2903 if (queue->card->options.performance_stats &&
2905 queue->card->perf_stats.bufs_sent_pack +=
2908 qeth_flush_buffers(queue, index, flush_cnt);
2909 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2914 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
2915 unsigned int qdio_error, int __queue, int first_element,
2916 int count, unsigned long card_ptr)
2918 struct qeth_card *card = (struct qeth_card *) card_ptr;
2919 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2920 struct qeth_qdio_out_buffer *buffer;
2922 unsigned qeth_send_err;
2924 QETH_CARD_TEXT(card, 6, "qdouhdl");
2925 if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
2926 QETH_CARD_TEXT(card, 2, "achkcond");
2927 netif_stop_queue(card->dev);
2928 qeth_schedule_recovery(card);
2931 if (card->options.performance_stats) {
2932 card->perf_stats.outbound_handler_cnt++;
2933 card->perf_stats.outbound_handler_start_time =
2936 for (i = first_element; i < (first_element + count); ++i) {
2937 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2938 qeth_send_err = qeth_handle_send_error(card, buffer, qdio_error);
2939 __qeth_clear_output_buffer(queue, buffer,
2940 (qeth_send_err == QETH_SEND_ERROR_RETRY) ? 1 : 0);
2942 atomic_sub(count, &queue->used_buffers);
2943 /* check if we need to do something on this outbound queue */
2944 if (card->info.type != QETH_CARD_TYPE_IQD)
2945 qeth_check_outbound_queue(queue);
2947 netif_wake_queue(queue->card->dev);
2948 if (card->options.performance_stats)
2949 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2950 card->perf_stats.outbound_handler_start_time;
2952 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
2954 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
2955 int ipv, int cast_type)
2957 if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD ||
2958 card->info.type == QETH_CARD_TYPE_OSX))
2959 return card->qdio.default_out_queue;
2960 switch (card->qdio.no_out_queues) {
2962 if (cast_type && card->info.is_multicast_different)
2963 return card->info.is_multicast_different &
2964 (card->qdio.no_out_queues - 1);
2965 if (card->qdio.do_prio_queueing && (ipv == 4)) {
2966 const u8 tos = ip_hdr(skb)->tos;
2968 if (card->qdio.do_prio_queueing ==
2969 QETH_PRIO_Q_ING_TOS) {
2970 if (tos & IP_TOS_NOTIMPORTANT)
2972 if (tos & IP_TOS_HIGHRELIABILITY)
2974 if (tos & IP_TOS_HIGHTHROUGHPUT)
2976 if (tos & IP_TOS_LOWDELAY)
2979 if (card->qdio.do_prio_queueing ==
2980 QETH_PRIO_Q_ING_PREC)
2981 return 3 - (tos >> 6);
2982 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
2985 return card->qdio.default_out_queue;
2986 case 1: /* fallthrough for single-out-queue 1920-device */
2988 return card->qdio.default_out_queue;
2991 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
2993 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
2994 struct sk_buff *skb, int elems)
2996 int dlen = skb->len - skb->data_len;
2997 int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) -
2998 PFN_DOWN((unsigned long)skb->data);
3000 elements_needed += skb_shinfo(skb)->nr_frags;
3001 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3002 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3003 "(Number=%d / Length=%d). Discarded.\n",
3004 (elements_needed+elems), skb->len);
3007 return elements_needed;
3009 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3011 int qeth_hdr_chk_and_bounce(struct sk_buff *skb, int len)
3013 int hroom, inpage, rest;
3015 if (((unsigned long)skb->data & PAGE_MASK) !=
3016 (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
3017 hroom = skb_headroom(skb);
3018 inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
3019 rest = len - inpage;
3022 memmove(skb->data - rest, skb->data, skb->len - skb->data_len);
3024 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
3028 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
3030 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3031 struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3034 int length = skb->len - skb->data_len;
3039 struct skb_frag_struct *frag;
3041 element = *next_element_to_fill;
3043 first_lap = (is_tso == 0 ? 1 : 0);
3046 data = skb->data + offset;
3051 while (length > 0) {
3052 /* length_here is the remaining amount of data in this page */
3053 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3054 if (length < length_here)
3055 length_here = length;
3057 buffer->element[element].addr = data;
3058 buffer->element[element].length = length_here;
3059 length -= length_here;
3062 if (skb_shinfo(skb)->nr_frags)
3063 buffer->element[element].flags =
3064 SBAL_FLAGS_FIRST_FRAG;
3066 buffer->element[element].flags = 0;
3068 buffer->element[element].flags =
3069 SBAL_FLAGS_MIDDLE_FRAG;
3072 buffer->element[element].flags =
3073 SBAL_FLAGS_FIRST_FRAG;
3075 buffer->element[element].flags =
3076 SBAL_FLAGS_MIDDLE_FRAG;
3078 data += length_here;
3083 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3084 frag = &skb_shinfo(skb)->frags[cnt];
3085 buffer->element[element].addr = (char *)page_to_phys(frag->page)
3086 + frag->page_offset;
3087 buffer->element[element].length = frag->size;
3088 buffer->element[element].flags = SBAL_FLAGS_MIDDLE_FRAG;
3092 if (buffer->element[element - 1].flags)
3093 buffer->element[element - 1].flags = SBAL_FLAGS_LAST_FRAG;
3094 *next_element_to_fill = element;
3097 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3098 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3099 struct qeth_hdr *hdr, int offset, int hd_len)
3101 struct qdio_buffer *buffer;
3102 int flush_cnt = 0, hdr_len, large_send = 0;
3104 buffer = buf->buffer;
3105 atomic_inc(&skb->users);
3106 skb_queue_tail(&buf->skb_list, skb);
3108 /*check first on TSO ....*/
3109 if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3110 int element = buf->next_element_to_fill;
3112 hdr_len = sizeof(struct qeth_hdr_tso) +
3113 ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3114 /*fill first buffer entry only with header information */
3115 buffer->element[element].addr = skb->data;
3116 buffer->element[element].length = hdr_len;
3117 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3118 buf->next_element_to_fill++;
3119 skb->data += hdr_len;
3120 skb->len -= hdr_len;
3125 int element = buf->next_element_to_fill;
3126 buffer->element[element].addr = hdr;
3127 buffer->element[element].length = sizeof(struct qeth_hdr) +
3129 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3130 buf->is_header[element] = 1;
3131 buf->next_element_to_fill++;
3134 __qeth_fill_buffer(skb, buffer, large_send,
3135 (int *)&buf->next_element_to_fill, offset);
3137 if (!queue->do_pack) {
3138 QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
3139 /* set state to PRIMED -> will be flushed */
3140 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3143 QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
3144 if (queue->card->options.performance_stats)
3145 queue->card->perf_stats.skbs_sent_pack++;
3146 if (buf->next_element_to_fill >=
3147 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3149 * packed buffer if full -> set state PRIMED
3150 * -> will be flushed
3152 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3159 int qeth_do_send_packet_fast(struct qeth_card *card,
3160 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3161 struct qeth_hdr *hdr, int elements_needed,
3162 int offset, int hd_len)
3164 struct qeth_qdio_out_buffer *buffer;
3165 struct sk_buff *skb1;
3166 struct qeth_skb_data *retry_ctrl;
3170 /* spin until we get the queue ... */
3171 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3172 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3173 /* ... now we've got the queue */
3174 index = queue->next_buf_to_fill;
3175 buffer = &queue->bufs[queue->next_buf_to_fill];
3177 * check if buffer is empty to make sure that we do not 'overtake'
3178 * ourselves and try to fill a buffer that is already primed
3180 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3182 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3183 QDIO_MAX_BUFFERS_PER_Q;
3184 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3185 qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
3186 qeth_flush_buffers(queue, index, 1);
3187 if (queue->sync_iqdio_error == 2) {
3188 skb1 = skb_dequeue(&buffer->skb_list);
3190 atomic_dec(&skb1->users);
3191 skb1 = skb_dequeue(&buffer->skb_list);
3193 retry_ctrl = (struct qeth_skb_data *) &skb->cb[16];
3194 if (retry_ctrl->magic != QETH_SKB_MAGIC) {
3195 retry_ctrl->magic = QETH_SKB_MAGIC;
3196 retry_ctrl->count = 0;
3198 if (retry_ctrl->count < QETH_SIGA_CC2_RETRIES) {
3199 retry_ctrl->count++;
3200 rc = dev_queue_xmit(skb);
3202 dev_kfree_skb_any(skb);
3203 QETH_CARD_TEXT(card, 2, "qrdrop");
3208 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3211 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3213 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3214 struct sk_buff *skb, struct qeth_hdr *hdr,
3215 int elements_needed)
3217 struct qeth_qdio_out_buffer *buffer;
3219 int flush_count = 0;
3224 /* spin until we get the queue ... */
3225 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3226 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3227 start_index = queue->next_buf_to_fill;
3228 buffer = &queue->bufs[queue->next_buf_to_fill];
3230 * check if buffer is empty to make sure that we do not 'overtake'
3231 * ourselves and try to fill a buffer that is already primed
3233 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3234 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3237 /* check if we need to switch packing state of this queue */
3238 qeth_switch_to_packing_if_needed(queue);
3239 if (queue->do_pack) {
3241 /* does packet fit in current buffer? */
3242 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3243 buffer->next_element_to_fill) < elements_needed) {
3244 /* ... no -> set state PRIMED */
3245 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3247 queue->next_buf_to_fill =
3248 (queue->next_buf_to_fill + 1) %
3249 QDIO_MAX_BUFFERS_PER_Q;
3250 buffer = &queue->bufs[queue->next_buf_to_fill];
3251 /* we did a step forward, so check buffer state
3253 if (atomic_read(&buffer->state) !=
3254 QETH_QDIO_BUF_EMPTY) {
3255 qeth_flush_buffers(queue, start_index,
3257 atomic_set(&queue->state,
3258 QETH_OUT_Q_UNLOCKED);
3263 tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
3264 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3265 QDIO_MAX_BUFFERS_PER_Q;
3268 qeth_flush_buffers(queue, start_index, flush_count);
3269 else if (!atomic_read(&queue->set_pci_flags_count))
3270 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3272 * queue->state will go from LOCKED -> UNLOCKED or from
3273 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3274 * (switch packing state or flush buffer to get another pci flag out).
3275 * In that case we will enter this loop
3277 while (atomic_dec_return(&queue->state)) {
3279 start_index = queue->next_buf_to_fill;
3280 /* check if we can go back to non-packing state */
3281 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3283 * check if we need to flush a packing buffer to get a pci
3284 * flag out on the queue
3286 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3287 flush_count += qeth_flush_buffers_on_no_pci(queue);
3289 qeth_flush_buffers(queue, start_index, flush_count);
3291 /* at this point the queue is UNLOCKED again */
3292 if (queue->card->options.performance_stats && do_pack)
3293 queue->card->perf_stats.bufs_sent_pack += flush_count;
3297 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3299 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3300 struct qeth_reply *reply, unsigned long data)
3302 struct qeth_ipa_cmd *cmd;
3303 struct qeth_ipacmd_setadpparms *setparms;
3305 QETH_CARD_TEXT(card, 4, "prmadpcb");
3307 cmd = (struct qeth_ipa_cmd *) data;
3308 setparms = &(cmd->data.setadapterparms);
3310 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3311 if (cmd->hdr.return_code) {
3312 QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code);
3313 setparms->data.mode = SET_PROMISC_MODE_OFF;
3315 card->info.promisc_mode = setparms->data.mode;
3319 void qeth_setadp_promisc_mode(struct qeth_card *card)
3321 enum qeth_ipa_promisc_modes mode;
3322 struct net_device *dev = card->dev;
3323 struct qeth_cmd_buffer *iob;
3324 struct qeth_ipa_cmd *cmd;
3326 QETH_CARD_TEXT(card, 4, "setprom");
3328 if (((dev->flags & IFF_PROMISC) &&
3329 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3330 (!(dev->flags & IFF_PROMISC) &&
3331 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3333 mode = SET_PROMISC_MODE_OFF;
3334 if (dev->flags & IFF_PROMISC)
3335 mode = SET_PROMISC_MODE_ON;
3336 QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
3338 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3339 sizeof(struct qeth_ipacmd_setadpparms));
3340 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3341 cmd->data.setadapterparms.data.mode = mode;
3342 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3344 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3346 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3348 struct qeth_card *card;
3351 card = dev->ml_priv;
3353 QETH_CARD_TEXT(card, 4, "chgmtu");
3354 sprintf(dbf_text, "%8x", new_mtu);
3355 QETH_CARD_TEXT(card, 4, dbf_text);
3359 if (new_mtu > 65535)
3361 if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3362 (!qeth_mtu_is_valid(card, new_mtu)))
3367 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3369 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3371 struct qeth_card *card;
3373 card = dev->ml_priv;
3375 QETH_CARD_TEXT(card, 5, "getstat");
3377 return &card->stats;
3379 EXPORT_SYMBOL_GPL(qeth_get_stats);
3381 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
3382 struct qeth_reply *reply, unsigned long data)
3384 struct qeth_ipa_cmd *cmd;
3386 QETH_CARD_TEXT(card, 4, "chgmaccb");
3388 cmd = (struct qeth_ipa_cmd *) data;
3389 if (!card->options.layer2 ||
3390 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
3391 memcpy(card->dev->dev_addr,
3392 &cmd->data.setadapterparms.data.change_addr.addr,
3394 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
3396 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3400 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
3403 struct qeth_cmd_buffer *iob;
3404 struct qeth_ipa_cmd *cmd;
3406 QETH_CARD_TEXT(card, 4, "chgmac");
3408 iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
3409 sizeof(struct qeth_ipacmd_setadpparms));
3410 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3411 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
3412 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
3413 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
3414 card->dev->dev_addr, OSA_ADDR_LEN);
3415 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
3419 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
3421 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
3422 struct qeth_reply *reply, unsigned long data)
3424 struct qeth_ipa_cmd *cmd;
3425 struct qeth_set_access_ctrl *access_ctrl_req;
3427 QETH_CARD_TEXT(card, 4, "setaccb");
3429 cmd = (struct qeth_ipa_cmd *) data;
3430 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
3431 QETH_DBF_TEXT_(SETUP, 2, "setaccb");
3432 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
3433 QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
3434 cmd->data.setadapterparms.hdr.return_code);
3435 switch (cmd->data.setadapterparms.hdr.return_code) {
3436 case SET_ACCESS_CTRL_RC_SUCCESS:
3437 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
3438 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
3440 card->options.isolation = access_ctrl_req->subcmd_code;
3441 if (card->options.isolation == ISOLATION_MODE_NONE) {
3442 dev_info(&card->gdev->dev,
3443 "QDIO data connection isolation is deactivated\n");
3445 dev_info(&card->gdev->dev,
3446 "QDIO data connection isolation is activated\n");
3448 QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n",
3449 card->gdev->dev.kobj.name,
3450 access_ctrl_req->subcmd_code,
3451 cmd->data.setadapterparms.hdr.return_code);
3454 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
3456 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
3457 card->gdev->dev.kobj.name,
3458 access_ctrl_req->subcmd_code,
3459 cmd->data.setadapterparms.hdr.return_code);
3460 dev_err(&card->gdev->dev, "Adapter does not "
3461 "support QDIO data connection isolation\n");
3463 /* ensure isolation mode is "none" */
3464 card->options.isolation = ISOLATION_MODE_NONE;
3467 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
3469 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
3470 card->gdev->dev.kobj.name,
3471 access_ctrl_req->subcmd_code,
3472 cmd->data.setadapterparms.hdr.return_code);
3473 dev_err(&card->gdev->dev,
3474 "Adapter is dedicated. "
3475 "QDIO data connection isolation not supported\n");
3477 /* ensure isolation mode is "none" */
3478 card->options.isolation = ISOLATION_MODE_NONE;
3481 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
3483 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
3484 card->gdev->dev.kobj.name,
3485 access_ctrl_req->subcmd_code,
3486 cmd->data.setadapterparms.hdr.return_code);
3487 dev_err(&card->gdev->dev,
3488 "TSO does not permit QDIO data connection isolation\n");
3490 /* ensure isolation mode is "none" */
3491 card->options.isolation = ISOLATION_MODE_NONE;
3496 /* this should never happen */
3497 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d"
3499 card->gdev->dev.kobj.name,
3500 access_ctrl_req->subcmd_code,
3501 cmd->data.setadapterparms.hdr.return_code);
3503 /* ensure isolation mode is "none" */
3504 card->options.isolation = ISOLATION_MODE_NONE;
3508 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3512 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
3513 enum qeth_ipa_isolation_modes isolation)
3516 struct qeth_cmd_buffer *iob;
3517 struct qeth_ipa_cmd *cmd;
3518 struct qeth_set_access_ctrl *access_ctrl_req;
3520 QETH_CARD_TEXT(card, 4, "setacctl");
3522 QETH_DBF_TEXT_(SETUP, 2, "setacctl");
3523 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
3525 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
3526 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
3527 sizeof(struct qeth_set_access_ctrl));
3528 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3529 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
3530 access_ctrl_req->subcmd_code = isolation;
3532 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
3534 QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
3538 int qeth_set_access_ctrl_online(struct qeth_card *card)
3542 QETH_CARD_TEXT(card, 4, "setactlo");
3544 if ((card->info.type == QETH_CARD_TYPE_OSD ||
3545 card->info.type == QETH_CARD_TYPE_OSX) &&
3546 qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
3547 rc = qeth_setadpparms_set_access_ctrl(card,
3548 card->options.isolation);
3551 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
3552 card->gdev->dev.kobj.name,
3555 } else if (card->options.isolation != ISOLATION_MODE_NONE) {
3556 card->options.isolation = ISOLATION_MODE_NONE;
3558 dev_err(&card->gdev->dev, "Adapter does not "
3559 "support QDIO data connection isolation\n");
3564 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
3566 void qeth_tx_timeout(struct net_device *dev)
3568 struct qeth_card *card;
3570 card = dev->ml_priv;
3571 QETH_CARD_TEXT(card, 4, "txtimeo");
3572 card->stats.tx_errors++;
3573 qeth_schedule_recovery(card);
3575 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
3577 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3579 struct qeth_card *card = dev->ml_priv;
3583 case MII_BMCR: /* Basic mode control register */
3585 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
3586 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
3587 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3588 rc |= BMCR_SPEED100;
3590 case MII_BMSR: /* Basic mode status register */
3591 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3592 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3595 case MII_PHYSID1: /* PHYS ID 1 */
3596 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3598 rc = (rc >> 5) & 0xFFFF;
3600 case MII_PHYSID2: /* PHYS ID 2 */
3601 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3603 case MII_ADVERTISE: /* Advertisement control reg */
3606 case MII_LPA: /* Link partner ability reg */
3607 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3608 LPA_100BASE4 | LPA_LPACK;
3610 case MII_EXPANSION: /* Expansion register */
3612 case MII_DCOUNTER: /* disconnect counter */
3614 case MII_FCSCOUNTER: /* false carrier counter */
3616 case MII_NWAYTEST: /* N-way auto-neg test register */
3618 case MII_RERRCOUNTER: /* rx error counter */
3619 rc = card->stats.rx_errors;
3621 case MII_SREVISION: /* silicon revision */
3623 case MII_RESV1: /* reserved 1 */
3625 case MII_LBRERROR: /* loopback, rx, bypass error */
3627 case MII_PHYADDR: /* physical address */
3629 case MII_RESV2: /* reserved 2 */
3631 case MII_TPISTATUS: /* TPI status for 10mbps */
3633 case MII_NCONFIG: /* network interface config */
3640 EXPORT_SYMBOL_GPL(qeth_mdio_read);
3642 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
3643 struct qeth_cmd_buffer *iob, int len,
3644 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
3650 QETH_CARD_TEXT(card, 4, "sendsnmp");
3652 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
3653 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
3654 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3655 /* adjust PDU length fields in IPA_PDU_HEADER */
3656 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
3658 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
3659 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
3660 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
3661 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
3662 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
3663 reply_cb, reply_param);
3666 static int qeth_snmp_command_cb(struct qeth_card *card,
3667 struct qeth_reply *reply, unsigned long sdata)
3669 struct qeth_ipa_cmd *cmd;
3670 struct qeth_arp_query_info *qinfo;
3671 struct qeth_snmp_cmd *snmp;
3672 unsigned char *data;
3675 QETH_CARD_TEXT(card, 3, "snpcmdcb");
3677 cmd = (struct qeth_ipa_cmd *) sdata;
3678 data = (unsigned char *)((char *)cmd - reply->offset);
3679 qinfo = (struct qeth_arp_query_info *) reply->param;
3680 snmp = &cmd->data.setadapterparms.data.snmp;
3682 if (cmd->hdr.return_code) {
3683 QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code);
3686 if (cmd->data.setadapterparms.hdr.return_code) {
3687 cmd->hdr.return_code =
3688 cmd->data.setadapterparms.hdr.return_code;
3689 QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code);
3692 data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
3693 if (cmd->data.setadapterparms.hdr.seq_no == 1)
3694 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
3696 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
3698 /* check if there is enough room in userspace */
3699 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
3700 QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
3701 cmd->hdr.return_code = -ENOMEM;
3704 QETH_CARD_TEXT_(card, 4, "snore%i",
3705 cmd->data.setadapterparms.hdr.used_total);
3706 QETH_CARD_TEXT_(card, 4, "sseqn%i",
3707 cmd->data.setadapterparms.hdr.seq_no);
3708 /*copy entries to user buffer*/
3709 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
3710 memcpy(qinfo->udata + qinfo->udata_offset,
3712 data_len + offsetof(struct qeth_snmp_cmd, data));
3713 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
3715 memcpy(qinfo->udata + qinfo->udata_offset,
3716 (char *)&snmp->request, data_len);
3718 qinfo->udata_offset += data_len;
3719 /* check if all replies received ... */
3720 QETH_CARD_TEXT_(card, 4, "srtot%i",
3721 cmd->data.setadapterparms.hdr.used_total);
3722 QETH_CARD_TEXT_(card, 4, "srseq%i",
3723 cmd->data.setadapterparms.hdr.seq_no);
3724 if (cmd->data.setadapterparms.hdr.seq_no <
3725 cmd->data.setadapterparms.hdr.used_total)
3730 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
3732 struct qeth_cmd_buffer *iob;
3733 struct qeth_ipa_cmd *cmd;
3734 struct qeth_snmp_ureq *ureq;
3736 struct qeth_arp_query_info qinfo = {0, };
3739 QETH_CARD_TEXT(card, 3, "snmpcmd");
3741 if (card->info.guestlan)
3744 if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
3745 (!card->options.layer2)) {
3748 /* skip 4 bytes (data_len struct member) to get req_len */
3749 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
3751 ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
3753 QETH_CARD_TEXT(card, 2, "snmpnome");
3754 return PTR_ERR(ureq);
3756 qinfo.udata_len = ureq->hdr.data_len;
3757 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
3762 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
3764 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
3765 QETH_SNMP_SETADP_CMDLENGTH + req_len);
3766 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3767 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
3768 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
3769 qeth_snmp_command_cb, (void *)&qinfo);
3771 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
3772 QETH_CARD_IFNAME(card), rc);
3774 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
3782 EXPORT_SYMBOL_GPL(qeth_snmp_command);
3784 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
3786 switch (card->info.type) {
3787 case QETH_CARD_TYPE_IQD:
3794 static int qeth_qdio_establish(struct qeth_card *card)
3796 struct qdio_initialize init_data;
3797 char *qib_param_field;
3798 struct qdio_buffer **in_sbal_ptrs;
3799 struct qdio_buffer **out_sbal_ptrs;
3803 QETH_DBF_TEXT(SETUP, 2, "qdioest");
3805 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3807 if (!qib_param_field)
3810 qeth_create_qib_param_field(card, qib_param_field);
3811 qeth_create_qib_param_field_blkt(card, qib_param_field);
3813 in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3815 if (!in_sbal_ptrs) {
3816 kfree(qib_param_field);
3819 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3820 in_sbal_ptrs[i] = (struct qdio_buffer *)
3821 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3824 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3825 sizeof(void *), GFP_KERNEL);
3826 if (!out_sbal_ptrs) {
3827 kfree(in_sbal_ptrs);
3828 kfree(qib_param_field);
3831 for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3832 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
3833 out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
3834 card->qdio.out_qs[i]->bufs[j].buffer);
3837 memset(&init_data, 0, sizeof(struct qdio_initialize));
3838 init_data.cdev = CARD_DDEV(card);
3839 init_data.q_format = qeth_get_qdio_q_format(card);
3840 init_data.qib_param_field_format = 0;
3841 init_data.qib_param_field = qib_param_field;
3842 init_data.no_input_qs = 1;
3843 init_data.no_output_qs = card->qdio.no_out_queues;
3844 init_data.input_handler = card->discipline.input_handler;
3845 init_data.output_handler = card->discipline.output_handler;
3846 init_data.int_parm = (unsigned long) card;
3847 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
3848 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3850 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3851 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
3852 rc = qdio_allocate(&init_data);
3854 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3857 rc = qdio_establish(&init_data);
3859 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3860 qdio_free(CARD_DDEV(card));
3864 kfree(out_sbal_ptrs);
3865 kfree(in_sbal_ptrs);
3866 kfree(qib_param_field);
3870 static void qeth_core_free_card(struct qeth_card *card)
3873 QETH_DBF_TEXT(SETUP, 2, "freecrd");
3874 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3875 qeth_clean_channel(&card->read);
3876 qeth_clean_channel(&card->write);
3878 free_netdev(card->dev);
3879 kfree(card->ip_tbd_list);
3880 qeth_free_qdio_buffers(card);
3881 unregister_service_level(&card->qeth_service_level);
3885 static struct ccw_device_id qeth_ids[] = {
3886 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
3887 .driver_info = QETH_CARD_TYPE_OSD},
3888 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
3889 .driver_info = QETH_CARD_TYPE_IQD},
3890 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
3891 .driver_info = QETH_CARD_TYPE_OSN},
3892 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
3893 .driver_info = QETH_CARD_TYPE_OSM},
3894 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
3895 .driver_info = QETH_CARD_TYPE_OSX},
3898 MODULE_DEVICE_TABLE(ccw, qeth_ids);
3900 static struct ccw_driver qeth_ccw_driver = {
3903 .probe = ccwgroup_probe_ccwdev,
3904 .remove = ccwgroup_remove_ccwdev,
3907 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
3908 unsigned long driver_id)
3910 return ccwgroup_create_from_string(root_dev, driver_id,
3911 &qeth_ccw_driver, 3, buf);
3914 int qeth_core_hardsetup_card(struct qeth_card *card)
3919 QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
3920 atomic_set(&card->force_alloc_skb, 0);
3923 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
3924 dev_name(&card->gdev->dev));
3925 ccw_device_set_offline(CARD_DDEV(card));
3926 ccw_device_set_offline(CARD_WDEV(card));
3927 ccw_device_set_offline(CARD_RDEV(card));
3928 rc = ccw_device_set_online(CARD_RDEV(card));
3931 rc = ccw_device_set_online(CARD_WDEV(card));
3934 rc = ccw_device_set_online(CARD_DDEV(card));
3937 rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
3939 if (rc == -ERESTARTSYS) {
3940 QETH_DBF_TEXT(SETUP, 2, "break1");
3943 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3949 qeth_init_tokens(card);
3950 qeth_init_func_level(card);
3951 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
3952 if (rc == -ERESTARTSYS) {
3953 QETH_DBF_TEXT(SETUP, 2, "break2");
3956 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3962 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
3963 if (rc == -ERESTARTSYS) {
3964 QETH_DBF_TEXT(SETUP, 2, "break3");
3967 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3973 card->read_or_write_problem = 0;
3974 rc = qeth_mpc_initialize(card);
3976 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3981 dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
3982 "an error on the device\n");
3983 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
3984 dev_name(&card->gdev->dev), rc);
3987 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
3989 static inline int qeth_create_skb_frag(struct qdio_buffer_element *element,
3990 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
3992 struct page *page = virt_to_page(element->addr);
3993 if (*pskb == NULL) {
3994 /* the upper protocol layers assume that there is data in the
3995 * skb itself. Copy a small amount (64 bytes) to make them
3997 *pskb = dev_alloc_skb(64 + ETH_HLEN);
4000 skb_reserve(*pskb, ETH_HLEN);
4001 if (data_len <= 64) {
4002 memcpy(skb_put(*pskb, data_len), element->addr + offset,
4006 memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
4007 skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
4009 (*pskb)->data_len += data_len - 64;
4010 (*pskb)->len += data_len - 64;
4011 (*pskb)->truesize += data_len - 64;
4016 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
4017 (*pskb)->data_len += data_len;
4018 (*pskb)->len += data_len;
4019 (*pskb)->truesize += data_len;
4025 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
4026 struct qdio_buffer *buffer,
4027 struct qdio_buffer_element **__element, int *__offset,
4028 struct qeth_hdr **hdr)
4030 struct qdio_buffer_element *element = *__element;
4031 int offset = *__offset;
4032 struct sk_buff *skb = NULL;
4040 /* qeth_hdr must not cross element boundaries */
4041 if (element->length < offset + sizeof(struct qeth_hdr)) {
4042 if (qeth_is_last_sbale(element))
4046 if (element->length < sizeof(struct qeth_hdr))
4049 *hdr = element->addr + offset;
4051 offset += sizeof(struct qeth_hdr);
4052 switch ((*hdr)->hdr.l2.id) {
4053 case QETH_HEADER_TYPE_LAYER2:
4054 skb_len = (*hdr)->hdr.l2.pkt_length;
4056 case QETH_HEADER_TYPE_LAYER3:
4057 skb_len = (*hdr)->hdr.l3.length;
4058 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
4059 (card->info.link_type == QETH_LINK_TYPE_HSTR))
4062 headroom = ETH_HLEN;
4064 case QETH_HEADER_TYPE_OSN:
4065 skb_len = (*hdr)->hdr.osn.pdu_length;
4066 headroom = sizeof(struct qeth_hdr);
4075 if ((skb_len >= card->options.rx_sg_cb) &&
4076 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
4077 (!atomic_read(&card->force_alloc_skb))) {
4080 skb = dev_alloc_skb(skb_len + headroom);
4084 skb_reserve(skb, headroom);
4087 data_ptr = element->addr + offset;
4089 data_len = min(skb_len, (int)(element->length - offset));
4092 if (qeth_create_skb_frag(element, &skb, offset,
4096 memcpy(skb_put(skb, data_len), data_ptr,
4100 skb_len -= data_len;
4102 if (qeth_is_last_sbale(element)) {
4103 QETH_CARD_TEXT(card, 4, "unexeob");
4104 QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
4105 dev_kfree_skb_any(skb);
4106 card->stats.rx_errors++;
4111 data_ptr = element->addr;
4116 *__element = element;
4118 if (use_rx_sg && card->options.performance_stats) {
4119 card->perf_stats.sg_skbs_rx++;
4120 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
4124 if (net_ratelimit()) {
4125 QETH_CARD_TEXT(card, 2, "noskbmem");
4127 card->stats.rx_dropped++;
4130 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
4132 static void qeth_unregister_dbf_views(void)
4135 for (x = 0; x < QETH_DBF_INFOS; x++) {
4136 debug_unregister(qeth_dbf[x].id);
4137 qeth_dbf[x].id = NULL;
4141 void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
4143 char dbf_txt_buf[32];
4146 if (level > id->level)
4148 va_start(args, fmt);
4149 vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
4151 debug_text_event(id, level, dbf_txt_buf);
4153 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
4155 static int qeth_register_dbf_views(void)
4160 for (x = 0; x < QETH_DBF_INFOS; x++) {
4161 /* register the areas */
4162 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
4166 if (qeth_dbf[x].id == NULL) {
4167 qeth_unregister_dbf_views();
4171 /* register a view */
4172 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
4174 qeth_unregister_dbf_views();
4178 /* set a passing level */
4179 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
4185 int qeth_core_load_discipline(struct qeth_card *card,
4186 enum qeth_discipline_id discipline)
4189 switch (discipline) {
4190 case QETH_DISCIPLINE_LAYER3:
4191 card->discipline.ccwgdriver = try_then_request_module(
4192 symbol_get(qeth_l3_ccwgroup_driver),
4195 case QETH_DISCIPLINE_LAYER2:
4196 card->discipline.ccwgdriver = try_then_request_module(
4197 symbol_get(qeth_l2_ccwgroup_driver),
4201 if (!card->discipline.ccwgdriver) {
4202 dev_err(&card->gdev->dev, "There is no kernel module to "
4203 "support discipline %d\n", discipline);
4209 void qeth_core_free_discipline(struct qeth_card *card)
4211 if (card->options.layer2)
4212 symbol_put(qeth_l2_ccwgroup_driver);
4214 symbol_put(qeth_l3_ccwgroup_driver);
4215 card->discipline.ccwgdriver = NULL;
4218 static void qeth_determine_capabilities(struct qeth_card *card)
4224 QETH_DBF_TEXT(SETUP, 2, "detcapab");
4225 rc = ccw_device_set_online(CARD_DDEV(card));
4227 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4232 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
4234 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4235 dev_name(&card->gdev->dev), rc);
4236 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4239 qeth_configure_unitaddr(card, prcd);
4240 qeth_configure_blkt_default(card, prcd);
4243 rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd);
4245 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4248 ccw_device_set_offline(CARD_DDEV(card));
4253 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
4255 struct qeth_card *card;
4258 unsigned long flags;
4261 QETH_DBF_TEXT(SETUP, 2, "probedev");
4264 if (!get_device(dev))
4267 QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
4269 card = qeth_alloc_card();
4271 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
4276 snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
4277 dev_name(&gdev->dev));
4278 card->debug = debug_register(dbf_name, 2, 1, 8);
4280 QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
4284 debug_register_view(card->debug, &debug_hex_ascii_view);
4286 card->read.ccwdev = gdev->cdev[0];
4287 card->write.ccwdev = gdev->cdev[1];
4288 card->data.ccwdev = gdev->cdev[2];
4289 dev_set_drvdata(&gdev->dev, card);
4291 gdev->cdev[0]->handler = qeth_irq;
4292 gdev->cdev[1]->handler = qeth_irq;
4293 gdev->cdev[2]->handler = qeth_irq;
4295 rc = qeth_determine_card_type(card);
4297 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4300 rc = qeth_setup_card(card);
4302 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4306 if (card->info.type == QETH_CARD_TYPE_OSN)
4307 rc = qeth_core_create_osn_attributes(dev);
4309 rc = qeth_core_create_device_attributes(dev);
4312 switch (card->info.type) {
4313 case QETH_CARD_TYPE_OSN:
4314 case QETH_CARD_TYPE_OSM:
4315 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
4318 rc = card->discipline.ccwgdriver->probe(card->gdev);
4321 case QETH_CARD_TYPE_OSD:
4322 case QETH_CARD_TYPE_OSX:
4327 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4328 list_add_tail(&card->list, &qeth_core_card_list.list);
4329 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4331 qeth_determine_capabilities(card);
4335 qeth_core_free_discipline(card);
4337 if (card->info.type == QETH_CARD_TYPE_OSN)
4338 qeth_core_remove_osn_attributes(dev);
4340 qeth_core_remove_device_attributes(dev);
4342 debug_unregister(card->debug);
4344 qeth_core_free_card(card);
4350 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
4352 unsigned long flags;
4353 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4355 QETH_DBF_TEXT(SETUP, 2, "removedv");
4357 if (card->info.type == QETH_CARD_TYPE_OSN) {
4358 qeth_core_remove_osn_attributes(&gdev->dev);
4360 qeth_core_remove_device_attributes(&gdev->dev);
4363 if (card->discipline.ccwgdriver) {
4364 card->discipline.ccwgdriver->remove(gdev);
4365 qeth_core_free_discipline(card);
4368 debug_unregister(card->debug);
4369 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4370 list_del(&card->list);
4371 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4372 qeth_core_free_card(card);
4373 dev_set_drvdata(&gdev->dev, NULL);
4374 put_device(&gdev->dev);
4378 static int qeth_core_set_online(struct ccwgroup_device *gdev)
4380 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4384 if (!card->discipline.ccwgdriver) {
4385 if (card->info.type == QETH_CARD_TYPE_IQD)
4386 def_discipline = QETH_DISCIPLINE_LAYER3;
4388 def_discipline = QETH_DISCIPLINE_LAYER2;
4389 rc = qeth_core_load_discipline(card, def_discipline);
4392 rc = card->discipline.ccwgdriver->probe(card->gdev);
4396 rc = card->discipline.ccwgdriver->set_online(gdev);
4401 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
4403 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4404 return card->discipline.ccwgdriver->set_offline(gdev);
4407 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
4409 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4410 if (card->discipline.ccwgdriver &&
4411 card->discipline.ccwgdriver->shutdown)
4412 card->discipline.ccwgdriver->shutdown(gdev);
4415 static int qeth_core_prepare(struct ccwgroup_device *gdev)
4417 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4418 if (card->discipline.ccwgdriver &&
4419 card->discipline.ccwgdriver->prepare)
4420 return card->discipline.ccwgdriver->prepare(gdev);
4424 static void qeth_core_complete(struct ccwgroup_device *gdev)
4426 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4427 if (card->discipline.ccwgdriver &&
4428 card->discipline.ccwgdriver->complete)
4429 card->discipline.ccwgdriver->complete(gdev);
4432 static int qeth_core_freeze(struct ccwgroup_device *gdev)
4434 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4435 if (card->discipline.ccwgdriver &&
4436 card->discipline.ccwgdriver->freeze)
4437 return card->discipline.ccwgdriver->freeze(gdev);
4441 static int qeth_core_thaw(struct ccwgroup_device *gdev)
4443 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4444 if (card->discipline.ccwgdriver &&
4445 card->discipline.ccwgdriver->thaw)
4446 return card->discipline.ccwgdriver->thaw(gdev);
4450 static int qeth_core_restore(struct ccwgroup_device *gdev)
4452 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4453 if (card->discipline.ccwgdriver &&
4454 card->discipline.ccwgdriver->restore)
4455 return card->discipline.ccwgdriver->restore(gdev);
4459 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
4460 .owner = THIS_MODULE,
4462 .driver_id = 0xD8C5E3C8,
4463 .probe = qeth_core_probe_device,
4464 .remove = qeth_core_remove_device,
4465 .set_online = qeth_core_set_online,
4466 .set_offline = qeth_core_set_offline,
4467 .shutdown = qeth_core_shutdown,
4468 .prepare = qeth_core_prepare,
4469 .complete = qeth_core_complete,
4470 .freeze = qeth_core_freeze,
4471 .thaw = qeth_core_thaw,
4472 .restore = qeth_core_restore,
4476 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
4480 err = qeth_core_driver_group(buf, qeth_core_root_dev,
4481 qeth_core_ccwgroup_driver.driver_id);
4488 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
4491 const char str[ETH_GSTRING_LEN];
4492 } qeth_ethtool_stats_keys[] = {
4497 {"tx skbs no packing"},
4498 {"tx buffers no packing"},
4499 {"tx skbs packing"},
4500 {"tx buffers packing"},
4503 /* 10 */{"rx sg skbs"},
4505 {"rx sg page allocs"},
4506 {"tx large kbytes"},
4508 {"tx pk state ch n->p"},
4509 {"tx pk state ch p->n"},
4510 {"tx pk watermark low"},
4511 {"tx pk watermark high"},
4512 {"queue 0 buffer usage"},
4513 /* 20 */{"queue 1 buffer usage"},
4514 {"queue 2 buffer usage"},
4515 {"queue 3 buffer usage"},
4516 {"rx handler time"},
4517 {"rx handler count"},
4518 {"rx do_QDIO time"},
4519 {"rx do_QDIO count"},
4520 {"tx handler time"},
4521 {"tx handler count"},
4523 /* 30 */{"tx count"},
4524 {"tx do_QDIO time"},
4525 {"tx do_QDIO count"},
4530 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
4532 switch (stringset) {
4534 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
4539 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
4541 void qeth_core_get_ethtool_stats(struct net_device *dev,
4542 struct ethtool_stats *stats, u64 *data)
4544 struct qeth_card *card = dev->ml_priv;
4545 data[0] = card->stats.rx_packets -
4546 card->perf_stats.initial_rx_packets;
4547 data[1] = card->perf_stats.bufs_rec;
4548 data[2] = card->stats.tx_packets -
4549 card->perf_stats.initial_tx_packets;
4550 data[3] = card->perf_stats.bufs_sent;
4551 data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
4552 - card->perf_stats.skbs_sent_pack;
4553 data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
4554 data[6] = card->perf_stats.skbs_sent_pack;
4555 data[7] = card->perf_stats.bufs_sent_pack;
4556 data[8] = card->perf_stats.sg_skbs_sent;
4557 data[9] = card->perf_stats.sg_frags_sent;
4558 data[10] = card->perf_stats.sg_skbs_rx;
4559 data[11] = card->perf_stats.sg_frags_rx;
4560 data[12] = card->perf_stats.sg_alloc_page_rx;
4561 data[13] = (card->perf_stats.large_send_bytes >> 10);
4562 data[14] = card->perf_stats.large_send_cnt;
4563 data[15] = card->perf_stats.sc_dp_p;
4564 data[16] = card->perf_stats.sc_p_dp;
4565 data[17] = QETH_LOW_WATERMARK_PACK;
4566 data[18] = QETH_HIGH_WATERMARK_PACK;
4567 data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
4568 data[20] = (card->qdio.no_out_queues > 1) ?
4569 atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
4570 data[21] = (card->qdio.no_out_queues > 2) ?
4571 atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
4572 data[22] = (card->qdio.no_out_queues > 3) ?
4573 atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
4574 data[23] = card->perf_stats.inbound_time;
4575 data[24] = card->perf_stats.inbound_cnt;
4576 data[25] = card->perf_stats.inbound_do_qdio_time;
4577 data[26] = card->perf_stats.inbound_do_qdio_cnt;
4578 data[27] = card->perf_stats.outbound_handler_time;
4579 data[28] = card->perf_stats.outbound_handler_cnt;
4580 data[29] = card->perf_stats.outbound_time;
4581 data[30] = card->perf_stats.outbound_cnt;
4582 data[31] = card->perf_stats.outbound_do_qdio_time;
4583 data[32] = card->perf_stats.outbound_do_qdio_cnt;
4584 data[33] = card->perf_stats.tx_csum;
4585 data[34] = card->perf_stats.tx_lin;
4587 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
4589 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
4591 switch (stringset) {
4593 memcpy(data, &qeth_ethtool_stats_keys,
4594 sizeof(qeth_ethtool_stats_keys));
4601 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
4603 void qeth_core_get_drvinfo(struct net_device *dev,
4604 struct ethtool_drvinfo *info)
4606 struct qeth_card *card = dev->ml_priv;
4607 if (card->options.layer2)
4608 strcpy(info->driver, "qeth_l2");
4610 strcpy(info->driver, "qeth_l3");
4612 strcpy(info->version, "1.0");
4613 strcpy(info->fw_version, card->info.mcl_level);
4614 sprintf(info->bus_info, "%s/%s/%s",
4617 CARD_DDEV_ID(card));
4619 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
4621 int qeth_core_ethtool_get_settings(struct net_device *netdev,
4622 struct ethtool_cmd *ecmd)
4624 struct qeth_card *card = netdev->ml_priv;
4625 enum qeth_link_types link_type;
4627 if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
4628 link_type = QETH_LINK_TYPE_10GBIT_ETH;
4630 link_type = card->info.link_type;
4632 ecmd->transceiver = XCVR_INTERNAL;
4633 ecmd->supported = SUPPORTED_Autoneg;
4634 ecmd->advertising = ADVERTISED_Autoneg;
4635 ecmd->duplex = DUPLEX_FULL;
4636 ecmd->autoneg = AUTONEG_ENABLE;
4638 switch (link_type) {
4639 case QETH_LINK_TYPE_FAST_ETH:
4640 case QETH_LINK_TYPE_LANE_ETH100:
4641 ecmd->supported |= SUPPORTED_10baseT_Half |
4642 SUPPORTED_10baseT_Full |
4643 SUPPORTED_100baseT_Half |
4644 SUPPORTED_100baseT_Full |
4646 ecmd->advertising |= ADVERTISED_10baseT_Half |
4647 ADVERTISED_10baseT_Full |
4648 ADVERTISED_100baseT_Half |
4649 ADVERTISED_100baseT_Full |
4651 ecmd->speed = SPEED_100;
4652 ecmd->port = PORT_TP;
4655 case QETH_LINK_TYPE_GBIT_ETH:
4656 case QETH_LINK_TYPE_LANE_ETH1000:
4657 ecmd->supported |= SUPPORTED_10baseT_Half |
4658 SUPPORTED_10baseT_Full |
4659 SUPPORTED_100baseT_Half |
4660 SUPPORTED_100baseT_Full |
4661 SUPPORTED_1000baseT_Half |
4662 SUPPORTED_1000baseT_Full |
4664 ecmd->advertising |= ADVERTISED_10baseT_Half |
4665 ADVERTISED_10baseT_Full |
4666 ADVERTISED_100baseT_Half |
4667 ADVERTISED_100baseT_Full |
4668 ADVERTISED_1000baseT_Half |
4669 ADVERTISED_1000baseT_Full |
4671 ecmd->speed = SPEED_1000;
4672 ecmd->port = PORT_FIBRE;
4675 case QETH_LINK_TYPE_10GBIT_ETH:
4676 ecmd->supported |= SUPPORTED_10baseT_Half |
4677 SUPPORTED_10baseT_Full |
4678 SUPPORTED_100baseT_Half |
4679 SUPPORTED_100baseT_Full |
4680 SUPPORTED_1000baseT_Half |
4681 SUPPORTED_1000baseT_Full |
4682 SUPPORTED_10000baseT_Full |
4684 ecmd->advertising |= ADVERTISED_10baseT_Half |
4685 ADVERTISED_10baseT_Full |
4686 ADVERTISED_100baseT_Half |
4687 ADVERTISED_100baseT_Full |
4688 ADVERTISED_1000baseT_Half |
4689 ADVERTISED_1000baseT_Full |
4690 ADVERTISED_10000baseT_Full |
4692 ecmd->speed = SPEED_10000;
4693 ecmd->port = PORT_FIBRE;
4697 ecmd->supported |= SUPPORTED_10baseT_Half |
4698 SUPPORTED_10baseT_Full |
4700 ecmd->advertising |= ADVERTISED_10baseT_Half |
4701 ADVERTISED_10baseT_Full |
4703 ecmd->speed = SPEED_10;
4704 ecmd->port = PORT_TP;
4709 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
4711 static int __init qeth_core_init(void)
4715 pr_info("loading core functions\n");
4716 INIT_LIST_HEAD(&qeth_core_card_list.list);
4717 rwlock_init(&qeth_core_card_list.rwlock);
4719 rc = qeth_register_dbf_views();
4722 rc = ccw_driver_register(&qeth_ccw_driver);
4725 rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
4728 rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
4729 &driver_attr_group);
4732 qeth_core_root_dev = root_device_register("qeth");
4733 rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
4737 qeth_core_header_cache = kmem_cache_create("qeth_hdr",
4738 sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
4739 if (!qeth_core_header_cache) {
4746 root_device_unregister(qeth_core_root_dev);
4748 driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4749 &driver_attr_group);
4751 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4753 ccw_driver_unregister(&qeth_ccw_driver);
4755 QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc);
4756 qeth_unregister_dbf_views();
4758 pr_err("Initializing the qeth device driver failed\n");
4762 static void __exit qeth_core_exit(void)
4764 root_device_unregister(qeth_core_root_dev);
4765 driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4766 &driver_attr_group);
4767 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4768 ccw_driver_unregister(&qeth_ccw_driver);
4769 kmem_cache_destroy(qeth_core_header_cache);
4770 qeth_unregister_dbf_views();
4771 pr_info("core functions removed\n");
4774 module_init(qeth_core_init);
4775 module_exit(qeth_core_exit);
4776 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
4777 MODULE_DESCRIPTION("qeth core functions");
4778 MODULE_LICENSE("GPL");