2 * Copyright IBM Corp. 2007, 2009
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 #define KMSG_COMPONENT "qeth"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/string.h>
15 #include <linux/errno.h>
16 #include <linux/kernel.h>
18 #include <linux/tcp.h>
19 #include <linux/mii.h>
20 #include <linux/kthread.h>
21 #include <linux/slab.h>
22 #include <net/iucv/af_iucv.h>
23 #include <net/dsfield.h>
25 #include <asm/ebcdic.h>
26 #include <asm/chpid.h>
28 #include <asm/sysinfo.h>
29 #include <asm/compat.h>
31 #include "qeth_core.h"
33 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
34 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
36 [QETH_DBF_SETUP] = {"qeth_setup",
37 8, 1, 8, 5, &debug_hex_ascii_view, NULL},
38 [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
39 &debug_sprintf_view, NULL},
40 [QETH_DBF_CTRL] = {"qeth_control",
41 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
43 EXPORT_SYMBOL_GPL(qeth_dbf);
45 struct qeth_card_list_struct qeth_core_card_list;
46 EXPORT_SYMBOL_GPL(qeth_core_card_list);
47 struct kmem_cache *qeth_core_header_cache;
48 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
49 static struct kmem_cache *qeth_qdio_outbuf_cache;
51 static struct device *qeth_core_root_dev;
52 static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY;
53 static struct lock_class_key qdio_out_skb_queue_key;
54 static struct mutex qeth_mod_mutex;
56 static void qeth_send_control_data_cb(struct qeth_channel *,
57 struct qeth_cmd_buffer *);
58 static int qeth_issue_next_read(struct qeth_card *);
59 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
60 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
61 static void qeth_free_buffer_pool(struct qeth_card *);
62 static int qeth_qdio_establish(struct qeth_card *);
63 static void qeth_free_qdio_buffers(struct qeth_card *);
64 static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
65 struct qeth_qdio_out_buffer *buf,
66 enum iucv_tx_notify notification);
67 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
68 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
69 struct qeth_qdio_out_buffer *buf,
70 enum qeth_qdio_buffer_states newbufstate);
71 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
73 struct workqueue_struct *qeth_wq;
74 EXPORT_SYMBOL_GPL(qeth_wq);
76 static void qeth_close_dev_handler(struct work_struct *work)
78 struct qeth_card *card;
80 card = container_of(work, struct qeth_card, close_dev_work);
81 QETH_CARD_TEXT(card, 2, "cldevhdl");
85 ccwgroup_set_offline(card->gdev);
88 void qeth_close_dev(struct qeth_card *card)
90 QETH_CARD_TEXT(card, 2, "cldevsubm");
91 queue_work(qeth_wq, &card->close_dev_work);
93 EXPORT_SYMBOL_GPL(qeth_close_dev);
95 static inline const char *qeth_get_cardname(struct qeth_card *card)
97 if (card->info.guestlan) {
98 switch (card->info.type) {
99 case QETH_CARD_TYPE_OSD:
100 return " Virtual NIC QDIO";
101 case QETH_CARD_TYPE_IQD:
102 return " Virtual NIC Hiper";
103 case QETH_CARD_TYPE_OSM:
104 return " Virtual NIC QDIO - OSM";
105 case QETH_CARD_TYPE_OSX:
106 return " Virtual NIC QDIO - OSX";
111 switch (card->info.type) {
112 case QETH_CARD_TYPE_OSD:
113 return " OSD Express";
114 case QETH_CARD_TYPE_IQD:
115 return " HiperSockets";
116 case QETH_CARD_TYPE_OSN:
118 case QETH_CARD_TYPE_OSM:
120 case QETH_CARD_TYPE_OSX:
129 /* max length to be returned: 14 */
130 const char *qeth_get_cardname_short(struct qeth_card *card)
132 if (card->info.guestlan) {
133 switch (card->info.type) {
134 case QETH_CARD_TYPE_OSD:
135 return "Virt.NIC QDIO";
136 case QETH_CARD_TYPE_IQD:
137 return "Virt.NIC Hiper";
138 case QETH_CARD_TYPE_OSM:
139 return "Virt.NIC OSM";
140 case QETH_CARD_TYPE_OSX:
141 return "Virt.NIC OSX";
146 switch (card->info.type) {
147 case QETH_CARD_TYPE_OSD:
148 switch (card->info.link_type) {
149 case QETH_LINK_TYPE_FAST_ETH:
151 case QETH_LINK_TYPE_HSTR:
153 case QETH_LINK_TYPE_GBIT_ETH:
155 case QETH_LINK_TYPE_10GBIT_ETH:
157 case QETH_LINK_TYPE_LANE_ETH100:
158 return "OSD_FE_LANE";
159 case QETH_LINK_TYPE_LANE_TR:
160 return "OSD_TR_LANE";
161 case QETH_LINK_TYPE_LANE_ETH1000:
162 return "OSD_GbE_LANE";
163 case QETH_LINK_TYPE_LANE:
164 return "OSD_ATM_LANE";
166 return "OSD_Express";
168 case QETH_CARD_TYPE_IQD:
169 return "HiperSockets";
170 case QETH_CARD_TYPE_OSN:
172 case QETH_CARD_TYPE_OSM:
174 case QETH_CARD_TYPE_OSX:
183 void qeth_set_recovery_task(struct qeth_card *card)
185 card->recovery_task = current;
187 EXPORT_SYMBOL_GPL(qeth_set_recovery_task);
189 void qeth_clear_recovery_task(struct qeth_card *card)
191 card->recovery_task = NULL;
193 EXPORT_SYMBOL_GPL(qeth_clear_recovery_task);
195 static bool qeth_is_recovery_task(const struct qeth_card *card)
197 return card->recovery_task == current;
200 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
201 int clear_start_mask)
205 spin_lock_irqsave(&card->thread_mask_lock, flags);
206 card->thread_allowed_mask = threads;
207 if (clear_start_mask)
208 card->thread_start_mask &= threads;
209 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
210 wake_up(&card->wait_q);
212 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
214 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
219 spin_lock_irqsave(&card->thread_mask_lock, flags);
220 rc = (card->thread_running_mask & threads);
221 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
224 EXPORT_SYMBOL_GPL(qeth_threads_running);
226 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
228 if (qeth_is_recovery_task(card))
230 return wait_event_interruptible(card->wait_q,
231 qeth_threads_running(card, threads) == 0);
233 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
235 void qeth_clear_working_pool_list(struct qeth_card *card)
237 struct qeth_buffer_pool_entry *pool_entry, *tmp;
239 QETH_CARD_TEXT(card, 5, "clwrklst");
240 list_for_each_entry_safe(pool_entry, tmp,
241 &card->qdio.in_buf_pool.entry_list, list){
242 list_del(&pool_entry->list);
245 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
247 static int qeth_alloc_buffer_pool(struct qeth_card *card)
249 struct qeth_buffer_pool_entry *pool_entry;
253 QETH_CARD_TEXT(card, 5, "alocpool");
254 for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
255 pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL);
257 qeth_free_buffer_pool(card);
260 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
261 ptr = (void *) __get_free_page(GFP_KERNEL);
264 free_page((unsigned long)
265 pool_entry->elements[--j]);
267 qeth_free_buffer_pool(card);
270 pool_entry->elements[j] = ptr;
272 list_add(&pool_entry->init_list,
273 &card->qdio.init_pool.entry_list);
278 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
280 QETH_CARD_TEXT(card, 2, "realcbp");
282 if ((card->state != CARD_STATE_DOWN) &&
283 (card->state != CARD_STATE_RECOVER))
286 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
287 qeth_clear_working_pool_list(card);
288 qeth_free_buffer_pool(card);
289 card->qdio.in_buf_pool.buf_count = bufcnt;
290 card->qdio.init_pool.buf_count = bufcnt;
291 return qeth_alloc_buffer_pool(card);
293 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
295 static inline int qeth_cq_init(struct qeth_card *card)
299 if (card->options.cq == QETH_CQ_ENABLED) {
300 QETH_DBF_TEXT(SETUP, 2, "cqinit");
301 memset(card->qdio.c_q->qdio_bufs, 0,
302 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
303 card->qdio.c_q->next_buf_to_init = 127;
304 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
305 card->qdio.no_in_queues - 1, 0,
308 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
317 static inline int qeth_alloc_cq(struct qeth_card *card)
321 if (card->options.cq == QETH_CQ_ENABLED) {
323 struct qdio_outbuf_state *outbuf_states;
325 QETH_DBF_TEXT(SETUP, 2, "cqon");
326 card->qdio.c_q = kzalloc(sizeof(struct qeth_qdio_q),
328 if (!card->qdio.c_q) {
332 QETH_DBF_HEX(SETUP, 2, &card->qdio.c_q, sizeof(void *));
334 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
335 card->qdio.c_q->bufs[i].buffer =
336 &card->qdio.c_q->qdio_bufs[i];
339 card->qdio.no_in_queues = 2;
341 card->qdio.out_bufstates =
342 kzalloc(card->qdio.no_out_queues *
343 QDIO_MAX_BUFFERS_PER_Q *
344 sizeof(struct qdio_outbuf_state), GFP_KERNEL);
345 outbuf_states = card->qdio.out_bufstates;
346 if (outbuf_states == NULL) {
350 for (i = 0; i < card->qdio.no_out_queues; ++i) {
351 card->qdio.out_qs[i]->bufstates = outbuf_states;
352 outbuf_states += QDIO_MAX_BUFFERS_PER_Q;
355 QETH_DBF_TEXT(SETUP, 2, "nocq");
356 card->qdio.c_q = NULL;
357 card->qdio.no_in_queues = 1;
359 QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues);
364 kfree(card->qdio.c_q);
365 card->qdio.c_q = NULL;
367 dev_err(&card->gdev->dev, "Failed to create completion queue\n");
371 static inline void qeth_free_cq(struct qeth_card *card)
373 if (card->qdio.c_q) {
374 --card->qdio.no_in_queues;
375 kfree(card->qdio.c_q);
376 card->qdio.c_q = NULL;
378 kfree(card->qdio.out_bufstates);
379 card->qdio.out_bufstates = NULL;
382 static inline enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
384 enum iucv_tx_notify n;
388 n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK;
394 n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE :
395 TX_NOTIFY_UNREACHABLE;
398 n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR :
399 TX_NOTIFY_GENERALERROR;
406 static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q,
407 int bidx, int forced_cleanup)
409 if (q->card->options.cq != QETH_CQ_ENABLED)
412 if (q->bufs[bidx]->next_pending != NULL) {
413 struct qeth_qdio_out_buffer *head = q->bufs[bidx];
414 struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending;
417 if (forced_cleanup ||
418 atomic_read(&c->state) ==
419 QETH_QDIO_BUF_HANDLED_DELAYED) {
420 struct qeth_qdio_out_buffer *f = c;
421 QETH_CARD_TEXT(f->q->card, 5, "fp");
422 QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f);
423 /* release here to avoid interleaving between
424 outbound tasklet and inbound tasklet
425 regarding notifications and lifecycle */
426 qeth_release_skbs(c);
429 WARN_ON_ONCE(head->next_pending != f);
430 head->next_pending = c;
431 kmem_cache_free(qeth_qdio_outbuf_cache, f);
439 if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) ==
440 QETH_QDIO_BUF_HANDLED_DELAYED)) {
441 /* for recovery situations */
442 q->bufs[bidx]->aob = q->bufstates[bidx].aob;
443 qeth_init_qdio_out_buf(q, bidx);
444 QETH_CARD_TEXT(q->card, 2, "clprecov");
449 static inline void qeth_qdio_handle_aob(struct qeth_card *card,
450 unsigned long phys_aob_addr) {
452 struct qeth_qdio_out_buffer *buffer;
453 enum iucv_tx_notify notification;
455 aob = (struct qaob *) phys_to_virt(phys_aob_addr);
456 QETH_CARD_TEXT(card, 5, "haob");
457 QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr);
458 buffer = (struct qeth_qdio_out_buffer *) aob->user1;
459 QETH_CARD_TEXT_(card, 5, "%lx", aob->user1);
461 if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED,
462 QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) {
463 notification = TX_NOTIFY_OK;
465 WARN_ON_ONCE(atomic_read(&buffer->state) !=
466 QETH_QDIO_BUF_PENDING);
467 atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ);
468 notification = TX_NOTIFY_DELAYED_OK;
471 if (aob->aorc != 0) {
472 QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc);
473 notification = qeth_compute_cq_notification(aob->aorc, 1);
475 qeth_notify_skbs(buffer->q, buffer, notification);
478 qeth_clear_output_buffer(buffer->q, buffer,
479 QETH_QDIO_BUF_HANDLED_DELAYED);
481 /* from here on: do not touch buffer anymore */
482 qdio_release_aob(aob);
485 static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
487 return card->options.cq == QETH_CQ_ENABLED &&
488 card->qdio.c_q != NULL &&
490 queue == card->qdio.no_in_queues - 1;
494 static int qeth_issue_next_read(struct qeth_card *card)
497 struct qeth_cmd_buffer *iob;
499 QETH_CARD_TEXT(card, 5, "issnxrd");
500 if (card->read.state != CH_STATE_UP)
502 iob = qeth_get_buffer(&card->read);
504 dev_warn(&card->gdev->dev, "The qeth device driver "
505 "failed to recover an error on the device\n");
506 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
507 "available\n", dev_name(&card->gdev->dev));
510 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
511 QETH_CARD_TEXT(card, 6, "noirqpnd");
512 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
515 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
516 "rc=%i\n", dev_name(&card->gdev->dev), rc);
517 atomic_set(&card->read.irq_pending, 0);
518 card->read_or_write_problem = 1;
519 qeth_schedule_recovery(card);
520 wake_up(&card->wait_q);
525 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
527 struct qeth_reply *reply;
529 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
531 atomic_set(&reply->refcnt, 1);
532 atomic_set(&reply->received, 0);
538 static void qeth_get_reply(struct qeth_reply *reply)
540 WARN_ON(atomic_read(&reply->refcnt) <= 0);
541 atomic_inc(&reply->refcnt);
544 static void qeth_put_reply(struct qeth_reply *reply)
546 WARN_ON(atomic_read(&reply->refcnt) <= 0);
547 if (atomic_dec_and_test(&reply->refcnt))
551 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
552 struct qeth_card *card)
555 int com = cmd->hdr.command;
556 ipa_name = qeth_get_ipa_cmd_name(com);
558 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
560 ipa_name, com, dev_name(&card->gdev->dev),
561 QETH_CARD_IFNAME(card), rc,
562 qeth_get_ipa_msg(rc));
564 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
565 ipa_name, com, dev_name(&card->gdev->dev),
566 QETH_CARD_IFNAME(card));
569 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
570 struct qeth_cmd_buffer *iob)
572 struct qeth_ipa_cmd *cmd = NULL;
574 QETH_CARD_TEXT(card, 5, "chkipad");
575 if (IS_IPA(iob->data)) {
576 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
577 if (IS_IPA_REPLY(cmd)) {
578 if (cmd->hdr.command != IPA_CMD_SETCCID &&
579 cmd->hdr.command != IPA_CMD_DELCCID &&
580 cmd->hdr.command != IPA_CMD_MODCCID &&
581 cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
582 qeth_issue_ipa_msg(cmd,
583 cmd->hdr.return_code, card);
586 switch (cmd->hdr.command) {
587 case IPA_CMD_STOPLAN:
588 if (cmd->hdr.return_code ==
589 IPA_RC_VEPA_TO_VEB_TRANSITION) {
590 dev_err(&card->gdev->dev,
591 "Interface %s is down because the "
592 "adjacent port is no longer in "
593 "reflective relay mode\n",
594 QETH_CARD_IFNAME(card));
595 qeth_close_dev(card);
597 dev_warn(&card->gdev->dev,
598 "The link for interface %s on CHPID"
600 QETH_CARD_IFNAME(card),
602 qeth_issue_ipa_msg(cmd,
603 cmd->hdr.return_code, card);
605 card->lan_online = 0;
606 if (card->dev && netif_carrier_ok(card->dev))
607 netif_carrier_off(card->dev);
609 case IPA_CMD_STARTLAN:
610 dev_info(&card->gdev->dev,
611 "The link for %s on CHPID 0x%X has"
613 QETH_CARD_IFNAME(card),
615 netif_carrier_on(card->dev);
616 card->lan_online = 1;
617 if (card->info.hwtrap)
618 card->info.hwtrap = 2;
619 qeth_schedule_recovery(card);
621 case IPA_CMD_SETBRIDGEPORT:
622 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
623 if (card->discipline->control_event_handler
628 case IPA_CMD_MODCCID:
630 case IPA_CMD_REGISTER_LOCAL_ADDR:
631 QETH_CARD_TEXT(card, 3, "irla");
633 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
634 QETH_CARD_TEXT(card, 3, "urla");
637 QETH_DBF_MESSAGE(2, "Received data is IPA "
638 "but not a reply!\n");
646 void qeth_clear_ipacmd_list(struct qeth_card *card)
648 struct qeth_reply *reply, *r;
651 QETH_CARD_TEXT(card, 4, "clipalst");
653 spin_lock_irqsave(&card->lock, flags);
654 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
655 qeth_get_reply(reply);
657 atomic_inc(&reply->received);
658 list_del_init(&reply->list);
659 wake_up(&reply->wait_q);
660 qeth_put_reply(reply);
662 spin_unlock_irqrestore(&card->lock, flags);
663 atomic_set(&card->write.irq_pending, 0);
665 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
667 static int qeth_check_idx_response(struct qeth_card *card,
668 unsigned char *buffer)
673 QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
674 if ((buffer[2] & 0xc0) == 0xc0) {
675 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
676 "with cause code 0x%02x%s\n",
678 ((buffer[4] == 0x22) ?
679 " -- try another portname" : ""));
680 QETH_CARD_TEXT(card, 2, "ckidxres");
681 QETH_CARD_TEXT(card, 2, " idxterm");
682 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
683 if (buffer[4] == 0xf6) {
684 dev_err(&card->gdev->dev,
685 "The qeth device is not configured "
686 "for the OSI layer required by z/VM\n");
694 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
697 struct qeth_card *card;
699 card = CARD_FROM_CDEV(channel->ccwdev);
700 QETH_CARD_TEXT(card, 4, "setupccw");
701 if (channel == &card->read)
702 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
704 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
705 channel->ccw.count = len;
706 channel->ccw.cda = (__u32) __pa(iob);
709 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
713 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
714 index = channel->io_buf_no;
716 if (channel->iob[index].state == BUF_STATE_FREE) {
717 channel->iob[index].state = BUF_STATE_LOCKED;
718 channel->io_buf_no = (channel->io_buf_no + 1) %
720 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
721 return channel->iob + index;
723 index = (index + 1) % QETH_CMD_BUFFER_NO;
724 } while (index != channel->io_buf_no);
729 void qeth_release_buffer(struct qeth_channel *channel,
730 struct qeth_cmd_buffer *iob)
734 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
735 spin_lock_irqsave(&channel->iob_lock, flags);
736 memset(iob->data, 0, QETH_BUFSIZE);
737 iob->state = BUF_STATE_FREE;
738 iob->callback = qeth_send_control_data_cb;
740 spin_unlock_irqrestore(&channel->iob_lock, flags);
741 wake_up(&channel->wait_q);
743 EXPORT_SYMBOL_GPL(qeth_release_buffer);
745 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
747 struct qeth_cmd_buffer *buffer = NULL;
750 spin_lock_irqsave(&channel->iob_lock, flags);
751 buffer = __qeth_get_buffer(channel);
752 spin_unlock_irqrestore(&channel->iob_lock, flags);
756 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
758 struct qeth_cmd_buffer *buffer;
759 wait_event(channel->wait_q,
760 ((buffer = qeth_get_buffer(channel)) != NULL));
763 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
765 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
769 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
770 qeth_release_buffer(channel, &channel->iob[cnt]);
772 channel->io_buf_no = 0;
774 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
776 static void qeth_send_control_data_cb(struct qeth_channel *channel,
777 struct qeth_cmd_buffer *iob)
779 struct qeth_card *card;
780 struct qeth_reply *reply, *r;
781 struct qeth_ipa_cmd *cmd;
786 card = CARD_FROM_CDEV(channel->ccwdev);
787 QETH_CARD_TEXT(card, 4, "sndctlcb");
788 rc = qeth_check_idx_response(card, iob->data);
793 qeth_clear_ipacmd_list(card);
794 qeth_schedule_recovery(card);
800 cmd = qeth_check_ipa_data(card, iob);
801 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
803 /*in case of OSN : check if cmd is set */
804 if (card->info.type == QETH_CARD_TYPE_OSN &&
806 cmd->hdr.command != IPA_CMD_STARTLAN &&
807 card->osn_info.assist_cb != NULL) {
808 card->osn_info.assist_cb(card->dev, cmd);
812 spin_lock_irqsave(&card->lock, flags);
813 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
814 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
815 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
816 qeth_get_reply(reply);
817 list_del_init(&reply->list);
818 spin_unlock_irqrestore(&card->lock, flags);
820 if (reply->callback != NULL) {
822 reply->offset = (__u16)((char *)cmd -
824 keep_reply = reply->callback(card,
828 keep_reply = reply->callback(card,
833 reply->rc = (u16) cmd->hdr.return_code;
837 spin_lock_irqsave(&card->lock, flags);
838 list_add_tail(&reply->list,
839 &card->cmd_waiter_list);
840 spin_unlock_irqrestore(&card->lock, flags);
842 atomic_inc(&reply->received);
843 wake_up(&reply->wait_q);
845 qeth_put_reply(reply);
849 spin_unlock_irqrestore(&card->lock, flags);
851 memcpy(&card->seqno.pdu_hdr_ack,
852 QETH_PDU_HEADER_SEQ_NO(iob->data),
854 qeth_release_buffer(channel, iob);
857 static int qeth_setup_channel(struct qeth_channel *channel)
861 QETH_DBF_TEXT(SETUP, 2, "setupch");
862 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
863 channel->iob[cnt].data =
864 kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
865 if (channel->iob[cnt].data == NULL)
867 channel->iob[cnt].state = BUF_STATE_FREE;
868 channel->iob[cnt].channel = channel;
869 channel->iob[cnt].callback = qeth_send_control_data_cb;
870 channel->iob[cnt].rc = 0;
872 if (cnt < QETH_CMD_BUFFER_NO) {
874 kfree(channel->iob[cnt].data);
878 channel->io_buf_no = 0;
879 atomic_set(&channel->irq_pending, 0);
880 spin_lock_init(&channel->iob_lock);
882 init_waitqueue_head(&channel->wait_q);
886 static int qeth_set_thread_start_bit(struct qeth_card *card,
887 unsigned long thread)
891 spin_lock_irqsave(&card->thread_mask_lock, flags);
892 if (!(card->thread_allowed_mask & thread) ||
893 (card->thread_start_mask & thread)) {
894 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
897 card->thread_start_mask |= thread;
898 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
902 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
906 spin_lock_irqsave(&card->thread_mask_lock, flags);
907 card->thread_start_mask &= ~thread;
908 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
909 wake_up(&card->wait_q);
911 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
913 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
917 spin_lock_irqsave(&card->thread_mask_lock, flags);
918 card->thread_running_mask &= ~thread;
919 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
920 wake_up(&card->wait_q);
922 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
924 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
929 spin_lock_irqsave(&card->thread_mask_lock, flags);
930 if (card->thread_start_mask & thread) {
931 if ((card->thread_allowed_mask & thread) &&
932 !(card->thread_running_mask & thread)) {
934 card->thread_start_mask &= ~thread;
935 card->thread_running_mask |= thread;
939 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
943 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
947 wait_event(card->wait_q,
948 (rc = __qeth_do_run_thread(card, thread)) >= 0);
951 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
953 void qeth_schedule_recovery(struct qeth_card *card)
955 QETH_CARD_TEXT(card, 2, "startrec");
956 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
957 schedule_work(&card->kernel_thread_starter);
959 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
961 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
965 struct qeth_card *card;
967 sense = (char *) irb->ecw;
968 cstat = irb->scsw.cmd.cstat;
969 dstat = irb->scsw.cmd.dstat;
970 card = CARD_FROM_CDEV(cdev);
972 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
973 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
974 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
975 QETH_CARD_TEXT(card, 2, "CGENCHK");
976 dev_warn(&cdev->dev, "The qeth device driver "
977 "failed to recover an error on the device\n");
978 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
979 dev_name(&cdev->dev), dstat, cstat);
980 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
985 if (dstat & DEV_STAT_UNIT_CHECK) {
986 if (sense[SENSE_RESETTING_EVENT_BYTE] &
987 SENSE_RESETTING_EVENT_FLAG) {
988 QETH_CARD_TEXT(card, 2, "REVIND");
991 if (sense[SENSE_COMMAND_REJECT_BYTE] &
992 SENSE_COMMAND_REJECT_FLAG) {
993 QETH_CARD_TEXT(card, 2, "CMDREJi");
996 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
997 QETH_CARD_TEXT(card, 2, "AFFE");
1000 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
1001 QETH_CARD_TEXT(card, 2, "ZEROSEN");
1004 QETH_CARD_TEXT(card, 2, "DGENCHK");
1010 static long __qeth_check_irb_error(struct ccw_device *cdev,
1011 unsigned long intparm, struct irb *irb)
1013 struct qeth_card *card;
1015 card = CARD_FROM_CDEV(cdev);
1017 if (!card || !IS_ERR(irb))
1020 switch (PTR_ERR(irb)) {
1022 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
1023 dev_name(&cdev->dev));
1024 QETH_CARD_TEXT(card, 2, "ckirberr");
1025 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
1028 dev_warn(&cdev->dev, "A hardware operation timed out"
1029 " on the device\n");
1030 QETH_CARD_TEXT(card, 2, "ckirberr");
1031 QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT);
1032 if (intparm == QETH_RCD_PARM) {
1033 if (card->data.ccwdev == cdev) {
1034 card->data.state = CH_STATE_DOWN;
1035 wake_up(&card->wait_q);
1040 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
1041 dev_name(&cdev->dev), PTR_ERR(irb));
1042 QETH_CARD_TEXT(card, 2, "ckirberr");
1043 QETH_CARD_TEXT(card, 2, " rc???");
1045 return PTR_ERR(irb);
1048 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
1053 struct qeth_cmd_buffer *buffer;
1054 struct qeth_channel *channel;
1055 struct qeth_card *card;
1056 struct qeth_cmd_buffer *iob;
1059 if (__qeth_check_irb_error(cdev, intparm, irb))
1061 cstat = irb->scsw.cmd.cstat;
1062 dstat = irb->scsw.cmd.dstat;
1064 card = CARD_FROM_CDEV(cdev);
1068 QETH_CARD_TEXT(card, 5, "irq");
1070 if (card->read.ccwdev == cdev) {
1071 channel = &card->read;
1072 QETH_CARD_TEXT(card, 5, "read");
1073 } else if (card->write.ccwdev == cdev) {
1074 channel = &card->write;
1075 QETH_CARD_TEXT(card, 5, "write");
1077 channel = &card->data;
1078 QETH_CARD_TEXT(card, 5, "data");
1080 atomic_set(&channel->irq_pending, 0);
1082 if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
1083 channel->state = CH_STATE_STOPPED;
1085 if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
1086 channel->state = CH_STATE_HALTED;
1088 /*let's wake up immediately on data channel*/
1089 if ((channel == &card->data) && (intparm != 0) &&
1090 (intparm != QETH_RCD_PARM))
1093 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
1094 QETH_CARD_TEXT(card, 6, "clrchpar");
1095 /* we don't have to handle this further */
1098 if (intparm == QETH_HALT_CHANNEL_PARM) {
1099 QETH_CARD_TEXT(card, 6, "hltchpar");
1100 /* we don't have to handle this further */
1103 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
1104 (dstat & DEV_STAT_UNIT_CHECK) ||
1106 if (irb->esw.esw0.erw.cons) {
1107 dev_warn(&channel->ccwdev->dev,
1108 "The qeth device driver failed to recover "
1109 "an error on the device\n");
1110 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1111 "0x%X dstat 0x%X\n",
1112 dev_name(&channel->ccwdev->dev), cstat, dstat);
1113 print_hex_dump(KERN_WARNING, "qeth: irb ",
1114 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
1115 print_hex_dump(KERN_WARNING, "qeth: sense data ",
1116 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
1118 if (intparm == QETH_RCD_PARM) {
1119 channel->state = CH_STATE_DOWN;
1122 rc = qeth_get_problem(cdev, irb);
1124 qeth_clear_ipacmd_list(card);
1125 qeth_schedule_recovery(card);
1130 if (intparm == QETH_RCD_PARM) {
1131 channel->state = CH_STATE_RCD_DONE;
1135 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
1136 buffer->state = BUF_STATE_PROCESSED;
1138 if (channel == &card->data)
1140 if (channel == &card->read &&
1141 channel->state == CH_STATE_UP)
1142 qeth_issue_next_read(card);
1145 index = channel->buf_no;
1146 while (iob[index].state == BUF_STATE_PROCESSED) {
1147 if (iob[index].callback != NULL)
1148 iob[index].callback(channel, iob + index);
1150 index = (index + 1) % QETH_CMD_BUFFER_NO;
1152 channel->buf_no = index;
1154 wake_up(&card->wait_q);
1158 static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
1159 struct qeth_qdio_out_buffer *buf,
1160 enum iucv_tx_notify notification)
1162 struct sk_buff *skb;
1164 if (skb_queue_empty(&buf->skb_list))
1166 skb = skb_peek(&buf->skb_list);
1168 QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
1169 QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
1170 if (skb->protocol == ETH_P_AF_IUCV) {
1172 struct iucv_sock *iucv = iucv_sk(skb->sk);
1173 iucv->sk_txnotify(skb, notification);
1176 if (skb_queue_is_last(&buf->skb_list, skb))
1179 skb = skb_queue_next(&buf->skb_list, skb);
1185 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
1187 struct sk_buff *skb;
1188 struct iucv_sock *iucv;
1189 int notify_general_error = 0;
1191 if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
1192 notify_general_error = 1;
1194 /* release may never happen from within CQ tasklet scope */
1195 WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
1197 skb = skb_dequeue(&buf->skb_list);
1199 QETH_CARD_TEXT(buf->q->card, 5, "skbr");
1200 QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb);
1201 if (notify_general_error && skb->protocol == ETH_P_AF_IUCV) {
1203 iucv = iucv_sk(skb->sk);
1204 iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR);
1207 atomic_dec(&skb->users);
1208 dev_kfree_skb_any(skb);
1209 skb = skb_dequeue(&buf->skb_list);
1213 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
1214 struct qeth_qdio_out_buffer *buf,
1215 enum qeth_qdio_buffer_states newbufstate)
1219 /* is PCI flag set on buffer? */
1220 if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ)
1221 atomic_dec(&queue->set_pci_flags_count);
1223 if (newbufstate == QETH_QDIO_BUF_EMPTY) {
1224 qeth_release_skbs(buf);
1226 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
1227 if (buf->buffer->element[i].addr && buf->is_header[i])
1228 kmem_cache_free(qeth_core_header_cache,
1229 buf->buffer->element[i].addr);
1230 buf->is_header[i] = 0;
1231 buf->buffer->element[i].length = 0;
1232 buf->buffer->element[i].addr = NULL;
1233 buf->buffer->element[i].eflags = 0;
1234 buf->buffer->element[i].sflags = 0;
1236 buf->buffer->element[15].eflags = 0;
1237 buf->buffer->element[15].sflags = 0;
1238 buf->next_element_to_fill = 0;
1239 atomic_set(&buf->state, newbufstate);
1242 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free)
1246 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
1249 qeth_cleanup_handled_pending(q, j, 1);
1250 qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY);
1252 kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]);
1258 void qeth_clear_qdio_buffers(struct qeth_card *card)
1262 QETH_CARD_TEXT(card, 2, "clearqdbf");
1263 /* clear outbound buffers to free skbs */
1264 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1265 if (card->qdio.out_qs[i]) {
1266 qeth_clear_outq_buffers(card->qdio.out_qs[i], 0);
1270 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
1272 static void qeth_free_buffer_pool(struct qeth_card *card)
1274 struct qeth_buffer_pool_entry *pool_entry, *tmp;
1276 list_for_each_entry_safe(pool_entry, tmp,
1277 &card->qdio.init_pool.entry_list, init_list){
1278 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
1279 free_page((unsigned long)pool_entry->elements[i]);
1280 list_del(&pool_entry->init_list);
1285 static void qeth_free_qdio_buffers(struct qeth_card *card)
1289 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
1290 QETH_QDIO_UNINITIALIZED)
1294 cancel_delayed_work_sync(&card->buffer_reclaim_work);
1295 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
1296 if (card->qdio.in_q->bufs[j].rx_skb)
1297 dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
1299 kfree(card->qdio.in_q);
1300 card->qdio.in_q = NULL;
1301 /* inbound buffer pool */
1302 qeth_free_buffer_pool(card);
1303 /* free outbound qdio_qs */
1304 if (card->qdio.out_qs) {
1305 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1306 qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
1307 kfree(card->qdio.out_qs[i]);
1309 kfree(card->qdio.out_qs);
1310 card->qdio.out_qs = NULL;
1314 static void qeth_clean_channel(struct qeth_channel *channel)
1318 QETH_DBF_TEXT(SETUP, 2, "freech");
1319 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1320 kfree(channel->iob[cnt].data);
1323 static void qeth_set_single_write_queues(struct qeth_card *card)
1325 if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
1326 (card->qdio.no_out_queues == 4))
1327 qeth_free_qdio_buffers(card);
1329 card->qdio.no_out_queues = 1;
1330 if (card->qdio.default_out_queue != 0)
1331 dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
1333 card->qdio.default_out_queue = 0;
1336 static void qeth_set_multiple_write_queues(struct qeth_card *card)
1338 if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
1339 (card->qdio.no_out_queues == 1)) {
1340 qeth_free_qdio_buffers(card);
1341 card->qdio.default_out_queue = 2;
1343 card->qdio.no_out_queues = 4;
1346 static void qeth_update_from_chp_desc(struct qeth_card *card)
1348 struct ccw_device *ccwdev;
1349 struct channel_path_desc *chp_dsc;
1351 QETH_DBF_TEXT(SETUP, 2, "chp_desc");
1353 ccwdev = card->data.ccwdev;
1354 chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
1358 card->info.func_level = 0x4100 + chp_dsc->desc;
1359 if (card->info.type == QETH_CARD_TYPE_IQD)
1362 /* CHPP field bit 6 == 1 -> single queue */
1363 if ((chp_dsc->chpp & 0x02) == 0x02)
1364 qeth_set_single_write_queues(card);
1366 qeth_set_multiple_write_queues(card);
1369 QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
1370 QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
1373 static void qeth_init_qdio_info(struct qeth_card *card)
1375 QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1376 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1378 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1379 if (card->info.type == QETH_CARD_TYPE_IQD)
1380 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
1382 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1383 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1384 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1385 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1388 static void qeth_set_intial_options(struct qeth_card *card)
1390 card->options.route4.type = NO_ROUTER;
1391 card->options.route6.type = NO_ROUTER;
1392 card->options.fake_broadcast = 0;
1393 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1394 card->options.performance_stats = 0;
1395 card->options.rx_sg_cb = QETH_RX_SG_CB;
1396 card->options.isolation = ISOLATION_MODE_NONE;
1397 card->options.cq = QETH_CQ_DISABLED;
1400 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1402 unsigned long flags;
1405 spin_lock_irqsave(&card->thread_mask_lock, flags);
1406 QETH_CARD_TEXT_(card, 4, " %02x%02x%02x",
1407 (u8) card->thread_start_mask,
1408 (u8) card->thread_allowed_mask,
1409 (u8) card->thread_running_mask);
1410 rc = (card->thread_start_mask & thread);
1411 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1415 static void qeth_start_kernel_thread(struct work_struct *work)
1417 struct task_struct *ts;
1418 struct qeth_card *card = container_of(work, struct qeth_card,
1419 kernel_thread_starter);
1420 QETH_CARD_TEXT(card , 2, "strthrd");
1422 if (card->read.state != CH_STATE_UP &&
1423 card->write.state != CH_STATE_UP)
1425 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
1426 ts = kthread_run(card->discipline->recover, (void *)card,
1429 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1430 qeth_clear_thread_running_bit(card,
1431 QETH_RECOVER_THREAD);
1436 static int qeth_setup_card(struct qeth_card *card)
1439 QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1440 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1442 card->read.state = CH_STATE_DOWN;
1443 card->write.state = CH_STATE_DOWN;
1444 card->data.state = CH_STATE_DOWN;
1445 card->state = CARD_STATE_DOWN;
1446 card->lan_online = 0;
1447 card->read_or_write_problem = 0;
1449 spin_lock_init(&card->vlanlock);
1450 spin_lock_init(&card->mclock);
1451 spin_lock_init(&card->lock);
1452 spin_lock_init(&card->ip_lock);
1453 spin_lock_init(&card->thread_mask_lock);
1454 mutex_init(&card->conf_mutex);
1455 mutex_init(&card->discipline_mutex);
1456 card->thread_start_mask = 0;
1457 card->thread_allowed_mask = 0;
1458 card->thread_running_mask = 0;
1459 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1460 INIT_LIST_HEAD(&card->ip_list);
1461 INIT_LIST_HEAD(card->ip_tbd_list);
1462 INIT_LIST_HEAD(&card->cmd_waiter_list);
1463 init_waitqueue_head(&card->wait_q);
1464 /* initial options */
1465 qeth_set_intial_options(card);
1466 /* IP address takeover */
1467 INIT_LIST_HEAD(&card->ipato.entries);
1468 card->ipato.enabled = 0;
1469 card->ipato.invert4 = 0;
1470 card->ipato.invert6 = 0;
1471 /* init QDIO stuff */
1472 qeth_init_qdio_info(card);
1473 INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
1474 INIT_WORK(&card->close_dev_work, qeth_close_dev_handler);
1478 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1480 struct qeth_card *card = container_of(slr, struct qeth_card,
1481 qeth_service_level);
1482 if (card->info.mcl_level[0])
1483 seq_printf(m, "qeth: %s firmware level %s\n",
1484 CARD_BUS_ID(card), card->info.mcl_level);
1487 static struct qeth_card *qeth_alloc_card(void)
1489 struct qeth_card *card;
1491 QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1492 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1495 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1496 card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_KERNEL);
1497 if (!card->ip_tbd_list) {
1498 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1501 if (qeth_setup_channel(&card->read))
1503 if (qeth_setup_channel(&card->write))
1505 card->options.layer2 = -1;
1506 card->qeth_service_level.seq_print = qeth_core_sl_print;
1507 register_service_level(&card->qeth_service_level);
1511 qeth_clean_channel(&card->read);
1513 kfree(card->ip_tbd_list);
1520 static int qeth_determine_card_type(struct qeth_card *card)
1524 QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1526 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1527 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1528 while (known_devices[i][QETH_DEV_MODEL_IND]) {
1529 if ((CARD_RDEV(card)->id.dev_type ==
1530 known_devices[i][QETH_DEV_TYPE_IND]) &&
1531 (CARD_RDEV(card)->id.dev_model ==
1532 known_devices[i][QETH_DEV_MODEL_IND])) {
1533 card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
1534 card->qdio.no_out_queues =
1535 known_devices[i][QETH_QUEUE_NO_IND];
1536 card->qdio.no_in_queues = 1;
1537 card->info.is_multicast_different =
1538 known_devices[i][QETH_MULTICAST_IND];
1539 qeth_update_from_chp_desc(card);
1544 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1545 dev_err(&card->gdev->dev, "The adapter hardware is of an "
1550 static int qeth_clear_channel(struct qeth_channel *channel)
1552 unsigned long flags;
1553 struct qeth_card *card;
1556 card = CARD_FROM_CDEV(channel->ccwdev);
1557 QETH_CARD_TEXT(card, 3, "clearch");
1558 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1559 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1560 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1564 rc = wait_event_interruptible_timeout(card->wait_q,
1565 channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1566 if (rc == -ERESTARTSYS)
1568 if (channel->state != CH_STATE_STOPPED)
1570 channel->state = CH_STATE_DOWN;
1574 static int qeth_halt_channel(struct qeth_channel *channel)
1576 unsigned long flags;
1577 struct qeth_card *card;
1580 card = CARD_FROM_CDEV(channel->ccwdev);
1581 QETH_CARD_TEXT(card, 3, "haltch");
1582 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1583 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1584 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1588 rc = wait_event_interruptible_timeout(card->wait_q,
1589 channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1590 if (rc == -ERESTARTSYS)
1592 if (channel->state != CH_STATE_HALTED)
1597 static int qeth_halt_channels(struct qeth_card *card)
1599 int rc1 = 0, rc2 = 0, rc3 = 0;
1601 QETH_CARD_TEXT(card, 3, "haltchs");
1602 rc1 = qeth_halt_channel(&card->read);
1603 rc2 = qeth_halt_channel(&card->write);
1604 rc3 = qeth_halt_channel(&card->data);
1612 static int qeth_clear_channels(struct qeth_card *card)
1614 int rc1 = 0, rc2 = 0, rc3 = 0;
1616 QETH_CARD_TEXT(card, 3, "clearchs");
1617 rc1 = qeth_clear_channel(&card->read);
1618 rc2 = qeth_clear_channel(&card->write);
1619 rc3 = qeth_clear_channel(&card->data);
1627 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1631 QETH_CARD_TEXT(card, 3, "clhacrd");
1634 rc = qeth_halt_channels(card);
1637 return qeth_clear_channels(card);
1640 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1644 QETH_CARD_TEXT(card, 3, "qdioclr");
1645 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1646 QETH_QDIO_CLEANING)) {
1647 case QETH_QDIO_ESTABLISHED:
1648 if (card->info.type == QETH_CARD_TYPE_IQD)
1649 rc = qdio_shutdown(CARD_DDEV(card),
1650 QDIO_FLAG_CLEANUP_USING_HALT);
1652 rc = qdio_shutdown(CARD_DDEV(card),
1653 QDIO_FLAG_CLEANUP_USING_CLEAR);
1655 QETH_CARD_TEXT_(card, 3, "1err%d", rc);
1656 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1658 case QETH_QDIO_CLEANING:
1663 rc = qeth_clear_halt_card(card, use_halt);
1665 QETH_CARD_TEXT_(card, 3, "2err%d", rc);
1666 card->state = CARD_STATE_DOWN;
1669 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1671 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1677 struct qeth_channel *channel = &card->data;
1678 unsigned long flags;
1681 * scan for RCD command in extended SenseID data
1683 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1684 if (!ciw || ciw->cmd == 0)
1686 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1690 channel->ccw.cmd_code = ciw->cmd;
1691 channel->ccw.cda = (__u32) __pa(rcd_buf);
1692 channel->ccw.count = ciw->count;
1693 channel->ccw.flags = CCW_FLAG_SLI;
1694 channel->state = CH_STATE_RCD;
1695 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1696 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1697 QETH_RCD_PARM, LPM_ANYPATH, 0,
1699 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1701 wait_event(card->wait_q,
1702 (channel->state == CH_STATE_RCD_DONE ||
1703 channel->state == CH_STATE_DOWN));
1704 if (channel->state == CH_STATE_DOWN)
1707 channel->state = CH_STATE_DOWN;
1713 *length = ciw->count;
1719 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1721 QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1722 card->info.chpid = prcd[30];
1723 card->info.unit_addr2 = prcd[31];
1724 card->info.cula = prcd[63];
1725 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1726 (prcd[0x11] == _ascebc['M']));
1729 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1731 QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1733 if (prcd[74] == 0xF0 && prcd[75] == 0xF0 &&
1734 prcd[76] >= 0xF1 && prcd[76] <= 0xF4) {
1735 card->info.blkt.time_total = 0;
1736 card->info.blkt.inter_packet = 0;
1737 card->info.blkt.inter_packet_jumbo = 0;
1739 card->info.blkt.time_total = 250;
1740 card->info.blkt.inter_packet = 5;
1741 card->info.blkt.inter_packet_jumbo = 15;
1745 static void qeth_init_tokens(struct qeth_card *card)
1747 card->token.issuer_rm_w = 0x00010103UL;
1748 card->token.cm_filter_w = 0x00010108UL;
1749 card->token.cm_connection_w = 0x0001010aUL;
1750 card->token.ulp_filter_w = 0x0001010bUL;
1751 card->token.ulp_connection_w = 0x0001010dUL;
1754 static void qeth_init_func_level(struct qeth_card *card)
1756 switch (card->info.type) {
1757 case QETH_CARD_TYPE_IQD:
1758 card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
1760 case QETH_CARD_TYPE_OSD:
1761 case QETH_CARD_TYPE_OSN:
1762 card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
1769 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1770 void (*idx_reply_cb)(struct qeth_channel *,
1771 struct qeth_cmd_buffer *))
1773 struct qeth_cmd_buffer *iob;
1774 unsigned long flags;
1776 struct qeth_card *card;
1778 QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1779 card = CARD_FROM_CDEV(channel->ccwdev);
1780 iob = qeth_get_buffer(channel);
1781 iob->callback = idx_reply_cb;
1782 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1783 channel->ccw.count = QETH_BUFSIZE;
1784 channel->ccw.cda = (__u32) __pa(iob->data);
1786 wait_event(card->wait_q,
1787 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1788 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1789 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1790 rc = ccw_device_start(channel->ccwdev,
1791 &channel->ccw, (addr_t) iob, 0, 0);
1792 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1795 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1796 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1797 atomic_set(&channel->irq_pending, 0);
1798 wake_up(&card->wait_q);
1801 rc = wait_event_interruptible_timeout(card->wait_q,
1802 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1803 if (rc == -ERESTARTSYS)
1805 if (channel->state != CH_STATE_UP) {
1807 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1808 qeth_clear_cmd_buffers(channel);
1814 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1815 void (*idx_reply_cb)(struct qeth_channel *,
1816 struct qeth_cmd_buffer *))
1818 struct qeth_card *card;
1819 struct qeth_cmd_buffer *iob;
1820 unsigned long flags;
1824 struct ccw_dev_id temp_devid;
1826 card = CARD_FROM_CDEV(channel->ccwdev);
1828 QETH_DBF_TEXT(SETUP, 2, "idxactch");
1830 iob = qeth_get_buffer(channel);
1831 iob->callback = idx_reply_cb;
1832 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1833 channel->ccw.count = IDX_ACTIVATE_SIZE;
1834 channel->ccw.cda = (__u32) __pa(iob->data);
1835 if (channel == &card->write) {
1836 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1837 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1838 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1839 card->seqno.trans_hdr++;
1841 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1842 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1843 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1845 tmp = ((__u8)card->info.portno) | 0x80;
1846 memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1847 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1848 &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1849 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1850 &card->info.func_level, sizeof(__u16));
1851 ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1852 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1853 temp = (card->info.cula << 8) + card->info.unit_addr2;
1854 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1856 wait_event(card->wait_q,
1857 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1858 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1859 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1860 rc = ccw_device_start(channel->ccwdev,
1861 &channel->ccw, (addr_t) iob, 0, 0);
1862 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1865 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1867 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1868 atomic_set(&channel->irq_pending, 0);
1869 wake_up(&card->wait_q);
1872 rc = wait_event_interruptible_timeout(card->wait_q,
1873 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1874 if (rc == -ERESTARTSYS)
1876 if (channel->state != CH_STATE_ACTIVATING) {
1877 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1878 " failed to recover an error on the device\n");
1879 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1880 dev_name(&channel->ccwdev->dev));
1881 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1882 qeth_clear_cmd_buffers(channel);
1885 return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1888 static int qeth_peer_func_level(int level)
1890 if ((level & 0xff) == 8)
1891 return (level & 0xff) + 0x400;
1892 if (((level >> 8) & 3) == 1)
1893 return (level & 0xff) + 0x200;
1897 static void qeth_idx_write_cb(struct qeth_channel *channel,
1898 struct qeth_cmd_buffer *iob)
1900 struct qeth_card *card;
1903 QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1905 if (channel->state == CH_STATE_DOWN) {
1906 channel->state = CH_STATE_ACTIVATING;
1909 card = CARD_FROM_CDEV(channel->ccwdev);
1911 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1912 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
1913 dev_err(&card->write.ccwdev->dev,
1914 "The adapter is used exclusively by another "
1917 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1918 " negative reply\n",
1919 dev_name(&card->write.ccwdev->dev));
1922 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1923 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1924 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1925 "function level mismatch (sent: 0x%x, received: "
1926 "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1927 card->info.func_level, temp);
1930 channel->state = CH_STATE_UP;
1932 qeth_release_buffer(channel, iob);
1935 static void qeth_idx_read_cb(struct qeth_channel *channel,
1936 struct qeth_cmd_buffer *iob)
1938 struct qeth_card *card;
1941 QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1942 if (channel->state == CH_STATE_DOWN) {
1943 channel->state = CH_STATE_ACTIVATING;
1947 card = CARD_FROM_CDEV(channel->ccwdev);
1948 if (qeth_check_idx_response(card, iob->data))
1951 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1952 switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
1953 case QETH_IDX_ACT_ERR_EXCL:
1954 dev_err(&card->write.ccwdev->dev,
1955 "The adapter is used exclusively by another "
1958 case QETH_IDX_ACT_ERR_AUTH:
1959 case QETH_IDX_ACT_ERR_AUTH_USER:
1960 dev_err(&card->read.ccwdev->dev,
1961 "Setting the device online failed because of "
1962 "insufficient authorization\n");
1965 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1966 " negative reply\n",
1967 dev_name(&card->read.ccwdev->dev));
1969 QETH_CARD_TEXT_(card, 2, "idxread%c",
1970 QETH_IDX_ACT_CAUSE_CODE(iob->data));
1975 * * temporary fix for microcode bug
1976 * * to revert it,replace OR by AND
1978 if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1979 (card->info.type == QETH_CARD_TYPE_OSD))
1980 card->info.portname_required = 1;
1982 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1983 if (temp != qeth_peer_func_level(card->info.func_level)) {
1984 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1985 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1986 dev_name(&card->read.ccwdev->dev),
1987 card->info.func_level, temp);
1990 memcpy(&card->token.issuer_rm_r,
1991 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1992 QETH_MPC_TOKEN_LENGTH);
1993 memcpy(&card->info.mcl_level[0],
1994 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1995 channel->state = CH_STATE_UP;
1997 qeth_release_buffer(channel, iob);
2000 void qeth_prepare_control_data(struct qeth_card *card, int len,
2001 struct qeth_cmd_buffer *iob)
2003 qeth_setup_ccw(&card->write, iob->data, len);
2004 iob->callback = qeth_release_buffer;
2006 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
2007 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
2008 card->seqno.trans_hdr++;
2009 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
2010 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
2011 card->seqno.pdu_hdr++;
2012 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
2013 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
2014 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
2016 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
2018 int qeth_send_control_data(struct qeth_card *card, int len,
2019 struct qeth_cmd_buffer *iob,
2020 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
2025 unsigned long flags;
2026 struct qeth_reply *reply = NULL;
2027 unsigned long timeout, event_timeout;
2028 struct qeth_ipa_cmd *cmd;
2030 QETH_CARD_TEXT(card, 2, "sendctl");
2032 if (card->read_or_write_problem) {
2033 qeth_release_buffer(iob->channel, iob);
2036 reply = qeth_alloc_reply(card);
2040 reply->callback = reply_cb;
2041 reply->param = reply_param;
2042 if (card->state == CARD_STATE_DOWN)
2043 reply->seqno = QETH_IDX_COMMAND_SEQNO;
2045 reply->seqno = card->seqno.ipa++;
2046 init_waitqueue_head(&reply->wait_q);
2047 spin_lock_irqsave(&card->lock, flags);
2048 list_add_tail(&reply->list, &card->cmd_waiter_list);
2049 spin_unlock_irqrestore(&card->lock, flags);
2050 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
2052 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
2053 qeth_prepare_control_data(card, len, iob);
2055 if (IS_IPA(iob->data))
2056 event_timeout = QETH_IPA_TIMEOUT;
2058 event_timeout = QETH_TIMEOUT;
2059 timeout = jiffies + event_timeout;
2061 QETH_CARD_TEXT(card, 6, "noirqpnd");
2062 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
2063 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
2064 (addr_t) iob, 0, 0);
2065 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
2067 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2068 "ccw_device_start rc = %i\n",
2069 dev_name(&card->write.ccwdev->dev), rc);
2070 QETH_CARD_TEXT_(card, 2, " err%d", rc);
2071 spin_lock_irqsave(&card->lock, flags);
2072 list_del_init(&reply->list);
2073 qeth_put_reply(reply);
2074 spin_unlock_irqrestore(&card->lock, flags);
2075 qeth_release_buffer(iob->channel, iob);
2076 atomic_set(&card->write.irq_pending, 0);
2077 wake_up(&card->wait_q);
2081 /* we have only one long running ipassist, since we can ensure
2082 process context of this command we can sleep */
2083 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2084 if ((cmd->hdr.command == IPA_CMD_SETIP) &&
2085 (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
2086 if (!wait_event_timeout(reply->wait_q,
2087 atomic_read(&reply->received), event_timeout))
2090 while (!atomic_read(&reply->received)) {
2091 if (time_after(jiffies, timeout))
2097 if (reply->rc == -EIO)
2100 qeth_put_reply(reply);
2105 spin_lock_irqsave(&reply->card->lock, flags);
2106 list_del_init(&reply->list);
2107 spin_unlock_irqrestore(&reply->card->lock, flags);
2108 atomic_inc(&reply->received);
2110 atomic_set(&card->write.irq_pending, 0);
2111 qeth_release_buffer(iob->channel, iob);
2112 card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
2114 qeth_put_reply(reply);
2117 EXPORT_SYMBOL_GPL(qeth_send_control_data);
2119 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2122 struct qeth_cmd_buffer *iob;
2124 QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
2126 iob = (struct qeth_cmd_buffer *) data;
2127 memcpy(&card->token.cm_filter_r,
2128 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2129 QETH_MPC_TOKEN_LENGTH);
2130 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2134 static int qeth_cm_enable(struct qeth_card *card)
2137 struct qeth_cmd_buffer *iob;
2139 QETH_DBF_TEXT(SETUP, 2, "cmenable");
2141 iob = qeth_wait_for_buffer(&card->write);
2142 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2143 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2144 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2145 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2146 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2148 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2149 qeth_cm_enable_cb, NULL);
2153 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2157 struct qeth_cmd_buffer *iob;
2159 QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
2161 iob = (struct qeth_cmd_buffer *) data;
2162 memcpy(&card->token.cm_connection_r,
2163 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2164 QETH_MPC_TOKEN_LENGTH);
2165 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2169 static int qeth_cm_setup(struct qeth_card *card)
2172 struct qeth_cmd_buffer *iob;
2174 QETH_DBF_TEXT(SETUP, 2, "cmsetup");
2176 iob = qeth_wait_for_buffer(&card->write);
2177 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2178 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2179 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2180 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2181 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2182 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2183 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2184 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2185 qeth_cm_setup_cb, NULL);
2190 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
2192 switch (card->info.type) {
2193 case QETH_CARD_TYPE_UNKNOWN:
2195 case QETH_CARD_TYPE_IQD:
2196 return card->info.max_mtu;
2197 case QETH_CARD_TYPE_OSD:
2198 switch (card->info.link_type) {
2199 case QETH_LINK_TYPE_HSTR:
2200 case QETH_LINK_TYPE_LANE_TR:
2203 return card->options.layer2 ? 1500 : 1492;
2205 case QETH_CARD_TYPE_OSM:
2206 case QETH_CARD_TYPE_OSX:
2207 return card->options.layer2 ? 1500 : 1492;
2213 static inline int qeth_get_mtu_outof_framesize(int framesize)
2215 switch (framesize) {
2229 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
2231 switch (card->info.type) {
2232 case QETH_CARD_TYPE_OSD:
2233 case QETH_CARD_TYPE_OSM:
2234 case QETH_CARD_TYPE_OSX:
2235 case QETH_CARD_TYPE_IQD:
2236 return ((mtu >= 576) &&
2237 (mtu <= card->info.max_mtu));
2238 case QETH_CARD_TYPE_OSN:
2239 case QETH_CARD_TYPE_UNKNOWN:
2245 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2249 __u16 mtu, framesize;
2252 struct qeth_cmd_buffer *iob;
2254 QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
2256 iob = (struct qeth_cmd_buffer *) data;
2257 memcpy(&card->token.ulp_filter_r,
2258 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2259 QETH_MPC_TOKEN_LENGTH);
2260 if (card->info.type == QETH_CARD_TYPE_IQD) {
2261 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2262 mtu = qeth_get_mtu_outof_framesize(framesize);
2265 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2268 if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
2269 /* frame size has changed */
2271 ((card->dev->mtu == card->info.initial_mtu) ||
2272 (card->dev->mtu > mtu)))
2273 card->dev->mtu = mtu;
2274 qeth_free_qdio_buffers(card);
2276 card->info.initial_mtu = mtu;
2277 card->info.max_mtu = mtu;
2278 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2280 card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
2282 card->info.initial_mtu = min(card->info.max_mtu,
2283 qeth_get_initial_mtu_for_card(card));
2284 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2287 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2288 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2290 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2291 card->info.link_type = link_type;
2293 card->info.link_type = 0;
2294 QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
2295 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2299 static int qeth_ulp_enable(struct qeth_card *card)
2303 struct qeth_cmd_buffer *iob;
2305 /*FIXME: trace view callbacks*/
2306 QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
2308 iob = qeth_wait_for_buffer(&card->write);
2309 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2311 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2312 (__u8) card->info.portno;
2313 if (card->options.layer2)
2314 if (card->info.type == QETH_CARD_TYPE_OSN)
2315 prot_type = QETH_PROT_OSN2;
2317 prot_type = QETH_PROT_LAYER2;
2319 prot_type = QETH_PROT_TCPIP;
2321 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
2322 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2323 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2324 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2325 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2326 memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2327 card->info.portname, 9);
2328 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2329 qeth_ulp_enable_cb, NULL);
2334 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2337 struct qeth_cmd_buffer *iob;
2339 QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
2341 iob = (struct qeth_cmd_buffer *) data;
2342 memcpy(&card->token.ulp_connection_r,
2343 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2344 QETH_MPC_TOKEN_LENGTH);
2345 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2347 QETH_DBF_TEXT(SETUP, 2, "olmlimit");
2348 dev_err(&card->gdev->dev, "A connection could not be "
2349 "established because of an OLM limit\n");
2352 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2356 static int qeth_ulp_setup(struct qeth_card *card)
2360 struct qeth_cmd_buffer *iob;
2361 struct ccw_dev_id dev_id;
2363 QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2365 iob = qeth_wait_for_buffer(&card->write);
2366 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2368 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2369 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2370 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2371 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2372 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2373 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2375 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2376 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2377 temp = (card->info.cula << 8) + card->info.unit_addr2;
2378 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2379 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2380 qeth_ulp_setup_cb, NULL);
2384 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx)
2387 struct qeth_qdio_out_buffer *newbuf;
2390 newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC);
2395 newbuf->buffer = &q->qdio_bufs[bidx];
2396 skb_queue_head_init(&newbuf->skb_list);
2397 lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key);
2400 newbuf->next_pending = q->bufs[bidx];
2401 atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY);
2402 q->bufs[bidx] = newbuf;
2404 q->bufstates[bidx].user = newbuf;
2405 QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx);
2406 QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf);
2407 QETH_CARD_TEXT_(q->card, 2, "%lx",
2408 (long) newbuf->next_pending);
2415 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2419 QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2421 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2422 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2425 card->qdio.in_q = kzalloc(sizeof(struct qeth_qdio_q),
2427 if (!card->qdio.in_q)
2429 QETH_DBF_TEXT(SETUP, 2, "inq");
2430 QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
2431 memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2432 /* give inbound qeth_qdio_buffers their qdio_buffers */
2433 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
2434 card->qdio.in_q->bufs[i].buffer =
2435 &card->qdio.in_q->qdio_bufs[i];
2436 card->qdio.in_q->bufs[i].rx_skb = NULL;
2438 /* inbound buffer pool */
2439 if (qeth_alloc_buffer_pool(card))
2444 kzalloc(card->qdio.no_out_queues *
2445 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2446 if (!card->qdio.out_qs)
2448 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2449 card->qdio.out_qs[i] = kzalloc(sizeof(struct qeth_qdio_out_q),
2451 if (!card->qdio.out_qs[i])
2453 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2454 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2455 card->qdio.out_qs[i]->queue_no = i;
2456 /* give outbound qeth_qdio_buffers their qdio_buffers */
2457 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2458 WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
2459 if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
2460 goto out_freeoutqbufs;
2465 if (qeth_alloc_cq(card))
2473 kmem_cache_free(qeth_qdio_outbuf_cache,
2474 card->qdio.out_qs[i]->bufs[j]);
2475 card->qdio.out_qs[i]->bufs[j] = NULL;
2479 kfree(card->qdio.out_qs[--i]);
2480 qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
2482 kfree(card->qdio.out_qs);
2483 card->qdio.out_qs = NULL;
2485 qeth_free_buffer_pool(card);
2487 kfree(card->qdio.in_q);
2488 card->qdio.in_q = NULL;
2490 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2494 static void qeth_create_qib_param_field(struct qeth_card *card,
2498 param_field[0] = _ascebc['P'];
2499 param_field[1] = _ascebc['C'];
2500 param_field[2] = _ascebc['I'];
2501 param_field[3] = _ascebc['T'];
2502 *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card);
2503 *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card);
2504 *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card);
2507 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2510 param_field[16] = _ascebc['B'];
2511 param_field[17] = _ascebc['L'];
2512 param_field[18] = _ascebc['K'];
2513 param_field[19] = _ascebc['T'];
2514 *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total;
2515 *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet;
2516 *((unsigned int *) (¶m_field[28])) =
2517 card->info.blkt.inter_packet_jumbo;
2520 static int qeth_qdio_activate(struct qeth_card *card)
2522 QETH_DBF_TEXT(SETUP, 3, "qdioact");
2523 return qdio_activate(CARD_DDEV(card));
2526 static int qeth_dm_act(struct qeth_card *card)
2529 struct qeth_cmd_buffer *iob;
2531 QETH_DBF_TEXT(SETUP, 2, "dmact");
2533 iob = qeth_wait_for_buffer(&card->write);
2534 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2536 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2537 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2538 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2539 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2540 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2544 static int qeth_mpc_initialize(struct qeth_card *card)
2548 QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2550 rc = qeth_issue_next_read(card);
2552 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2555 rc = qeth_cm_enable(card);
2557 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2560 rc = qeth_cm_setup(card);
2562 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2565 rc = qeth_ulp_enable(card);
2567 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2570 rc = qeth_ulp_setup(card);
2572 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2575 rc = qeth_alloc_qdio_buffers(card);
2577 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2580 rc = qeth_qdio_establish(card);
2582 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2583 qeth_free_qdio_buffers(card);
2586 rc = qeth_qdio_activate(card);
2588 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2591 rc = qeth_dm_act(card);
2593 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2599 qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2600 qdio_free(CARD_DDEV(card));
2604 static void qeth_print_status_with_portname(struct qeth_card *card)
2609 sprintf(dbf_text, "%s", card->info.portname + 1);
2610 for (i = 0; i < 8; i++)
2612 (char) _ebcasc[(__u8) dbf_text[i]];
2614 dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n"
2615 "with link type %s (portname: %s)\n",
2616 qeth_get_cardname(card),
2617 (card->info.mcl_level[0]) ? " (level: " : "",
2618 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2619 (card->info.mcl_level[0]) ? ")" : "",
2620 qeth_get_cardname_short(card),
2625 static void qeth_print_status_no_portname(struct qeth_card *card)
2627 if (card->info.portname[0])
2628 dev_info(&card->gdev->dev, "Device is a%s "
2629 "card%s%s%s\nwith link type %s "
2630 "(no portname needed by interface).\n",
2631 qeth_get_cardname(card),
2632 (card->info.mcl_level[0]) ? " (level: " : "",
2633 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2634 (card->info.mcl_level[0]) ? ")" : "",
2635 qeth_get_cardname_short(card));
2637 dev_info(&card->gdev->dev, "Device is a%s "
2638 "card%s%s%s\nwith link type %s.\n",
2639 qeth_get_cardname(card),
2640 (card->info.mcl_level[0]) ? " (level: " : "",
2641 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2642 (card->info.mcl_level[0]) ? ")" : "",
2643 qeth_get_cardname_short(card));
2646 void qeth_print_status_message(struct qeth_card *card)
2648 switch (card->info.type) {
2649 case QETH_CARD_TYPE_OSD:
2650 case QETH_CARD_TYPE_OSM:
2651 case QETH_CARD_TYPE_OSX:
2652 /* VM will use a non-zero first character
2653 * to indicate a HiperSockets like reporting
2654 * of the level OSA sets the first character to zero
2656 if (!card->info.mcl_level[0]) {
2657 sprintf(card->info.mcl_level, "%02x%02x",
2658 card->info.mcl_level[2],
2659 card->info.mcl_level[3]);
2661 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2665 case QETH_CARD_TYPE_IQD:
2666 if ((card->info.guestlan) ||
2667 (card->info.mcl_level[0] & 0x80)) {
2668 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2669 card->info.mcl_level[0]];
2670 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2671 card->info.mcl_level[1]];
2672 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2673 card->info.mcl_level[2]];
2674 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2675 card->info.mcl_level[3]];
2676 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2680 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2682 if (card->info.portname_required)
2683 qeth_print_status_with_portname(card);
2685 qeth_print_status_no_portname(card);
2687 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2689 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2691 struct qeth_buffer_pool_entry *entry;
2693 QETH_CARD_TEXT(card, 5, "inwrklst");
2695 list_for_each_entry(entry,
2696 &card->qdio.init_pool.entry_list, init_list) {
2697 qeth_put_buffer_pool_entry(card, entry);
2701 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2702 struct qeth_card *card)
2704 struct list_head *plh;
2705 struct qeth_buffer_pool_entry *entry;
2709 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2712 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2713 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2715 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2716 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2722 list_del_init(&entry->list);
2727 /* no free buffer in pool so take first one and swap pages */
2728 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2729 struct qeth_buffer_pool_entry, list);
2730 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2731 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2732 page = alloc_page(GFP_ATOMIC);
2736 free_page((unsigned long)entry->elements[i]);
2737 entry->elements[i] = page_address(page);
2738 if (card->options.performance_stats)
2739 card->perf_stats.sg_alloc_page_rx++;
2743 list_del_init(&entry->list);
2747 static int qeth_init_input_buffer(struct qeth_card *card,
2748 struct qeth_qdio_buffer *buf)
2750 struct qeth_buffer_pool_entry *pool_entry;
2753 if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) {
2754 buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
2759 pool_entry = qeth_find_free_buffer_pool_entry(card);
2764 * since the buffer is accessed only from the input_tasklet
2765 * there shouldn't be a need to synchronize; also, since we use
2766 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2770 buf->pool_entry = pool_entry;
2771 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2772 buf->buffer->element[i].length = PAGE_SIZE;
2773 buf->buffer->element[i].addr = pool_entry->elements[i];
2774 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2775 buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY;
2777 buf->buffer->element[i].eflags = 0;
2778 buf->buffer->element[i].sflags = 0;
2783 int qeth_init_qdio_queues(struct qeth_card *card)
2788 QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2791 memset(card->qdio.in_q->qdio_bufs, 0,
2792 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2793 qeth_initialize_working_pool_list(card);
2794 /*give only as many buffers to hardware as we have buffer pool entries*/
2795 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2796 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2797 card->qdio.in_q->next_buf_to_init =
2798 card->qdio.in_buf_pool.buf_count - 1;
2799 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2800 card->qdio.in_buf_pool.buf_count - 1);
2802 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2807 rc = qeth_cq_init(card);
2812 /* outbound queue */
2813 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2814 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2815 QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2816 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2817 qeth_clear_output_buffer(card->qdio.out_qs[i],
2818 card->qdio.out_qs[i]->bufs[j],
2819 QETH_QDIO_BUF_EMPTY);
2821 card->qdio.out_qs[i]->card = card;
2822 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2823 card->qdio.out_qs[i]->do_pack = 0;
2824 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2825 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2826 atomic_set(&card->qdio.out_qs[i]->state,
2827 QETH_OUT_Q_UNLOCKED);
2831 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2833 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2835 switch (link_type) {
2836 case QETH_LINK_TYPE_HSTR:
2843 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2844 struct qeth_ipa_cmd *cmd, __u8 command,
2845 enum qeth_prot_versions prot)
2847 memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2848 cmd->hdr.command = command;
2849 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2850 cmd->hdr.seqno = card->seqno.ipa;
2851 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2852 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2853 if (card->options.layer2)
2854 cmd->hdr.prim_version_no = 2;
2856 cmd->hdr.prim_version_no = 1;
2857 cmd->hdr.param_count = 1;
2858 cmd->hdr.prot_version = prot;
2859 cmd->hdr.ipa_supported = 0;
2860 cmd->hdr.ipa_enabled = 0;
2863 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2864 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2866 struct qeth_cmd_buffer *iob;
2867 struct qeth_ipa_cmd *cmd;
2869 iob = qeth_wait_for_buffer(&card->write);
2870 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2871 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2875 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2877 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2880 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2881 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2882 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2883 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2885 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2887 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2888 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2895 QETH_CARD_TEXT(card, 4, "sendipa");
2897 if (card->options.layer2)
2898 if (card->info.type == QETH_CARD_TYPE_OSN)
2899 prot_type = QETH_PROT_OSN2;
2901 prot_type = QETH_PROT_LAYER2;
2903 prot_type = QETH_PROT_TCPIP;
2904 qeth_prepare_ipa_cmd(card, iob, prot_type);
2905 rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2906 iob, reply_cb, reply_param);
2908 qeth_clear_ipacmd_list(card);
2909 qeth_schedule_recovery(card);
2913 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2915 int qeth_send_startlan(struct qeth_card *card)
2918 struct qeth_cmd_buffer *iob;
2920 QETH_DBF_TEXT(SETUP, 2, "strtlan");
2922 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
2923 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2926 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2928 static int qeth_default_setadapterparms_cb(struct qeth_card *card,
2929 struct qeth_reply *reply, unsigned long data)
2931 struct qeth_ipa_cmd *cmd;
2933 QETH_CARD_TEXT(card, 4, "defadpcb");
2935 cmd = (struct qeth_ipa_cmd *) data;
2936 if (cmd->hdr.return_code == 0)
2937 cmd->hdr.return_code =
2938 cmd->data.setadapterparms.hdr.return_code;
2942 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2943 struct qeth_reply *reply, unsigned long data)
2945 struct qeth_ipa_cmd *cmd;
2947 QETH_CARD_TEXT(card, 3, "quyadpcb");
2949 cmd = (struct qeth_ipa_cmd *) data;
2950 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
2951 card->info.link_type =
2952 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2953 QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
2955 card->options.adp.supported_funcs =
2956 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2957 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2960 static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2961 __u32 command, __u32 cmdlen)
2963 struct qeth_cmd_buffer *iob;
2964 struct qeth_ipa_cmd *cmd;
2966 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2968 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2969 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2970 cmd->data.setadapterparms.hdr.command_code = command;
2971 cmd->data.setadapterparms.hdr.used_total = 1;
2972 cmd->data.setadapterparms.hdr.seq_no = 1;
2977 int qeth_query_setadapterparms(struct qeth_card *card)
2980 struct qeth_cmd_buffer *iob;
2982 QETH_CARD_TEXT(card, 3, "queryadp");
2983 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2984 sizeof(struct qeth_ipacmd_setadpparms));
2985 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2988 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2990 static int qeth_query_ipassists_cb(struct qeth_card *card,
2991 struct qeth_reply *reply, unsigned long data)
2993 struct qeth_ipa_cmd *cmd;
2995 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
2997 cmd = (struct qeth_ipa_cmd *) data;
2999 switch (cmd->hdr.return_code) {
3000 case IPA_RC_NOTSUPP:
3001 case IPA_RC_L2_UNSUPPORTED_CMD:
3002 QETH_DBF_TEXT(SETUP, 2, "ipaunsup");
3003 card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS;
3004 card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS;
3007 if (cmd->hdr.return_code) {
3008 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
3010 dev_name(&card->gdev->dev),
3011 cmd->hdr.return_code);
3016 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
3017 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
3018 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
3019 } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) {
3020 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
3021 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
3023 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
3024 "\n", dev_name(&card->gdev->dev));
3028 int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
3031 struct qeth_cmd_buffer *iob;
3033 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
3034 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
3035 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
3038 EXPORT_SYMBOL_GPL(qeth_query_ipassists);
3040 static int qeth_query_setdiagass_cb(struct qeth_card *card,
3041 struct qeth_reply *reply, unsigned long data)
3043 struct qeth_ipa_cmd *cmd;
3046 cmd = (struct qeth_ipa_cmd *)data;
3047 rc = cmd->hdr.return_code;
3049 QETH_CARD_TEXT_(card, 2, "diagq:%x", rc);
3051 card->info.diagass_support = cmd->data.diagass.ext;
3055 static int qeth_query_setdiagass(struct qeth_card *card)
3057 struct qeth_cmd_buffer *iob;
3058 struct qeth_ipa_cmd *cmd;
3060 QETH_DBF_TEXT(SETUP, 2, "qdiagass");
3061 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3062 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3063 cmd->data.diagass.subcmd_len = 16;
3064 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY;
3065 return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL);
3068 static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
3070 unsigned long info = get_zeroed_page(GFP_KERNEL);
3071 struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info;
3072 struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info;
3073 struct ccw_dev_id ccwid;
3076 tid->chpid = card->info.chpid;
3077 ccw_device_get_id(CARD_RDEV(card), &ccwid);
3078 tid->ssid = ccwid.ssid;
3079 tid->devno = ccwid.devno;
3082 level = stsi(NULL, 0, 0, 0);
3083 if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0))
3084 tid->lparnr = info222->lpar_number;
3085 if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) {
3086 EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name));
3087 memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));
3093 static int qeth_hw_trap_cb(struct qeth_card *card,
3094 struct qeth_reply *reply, unsigned long data)
3096 struct qeth_ipa_cmd *cmd;
3099 cmd = (struct qeth_ipa_cmd *)data;
3100 rc = cmd->hdr.return_code;
3102 QETH_CARD_TEXT_(card, 2, "trapc:%x", rc);
3106 int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action)
3108 struct qeth_cmd_buffer *iob;
3109 struct qeth_ipa_cmd *cmd;
3111 QETH_DBF_TEXT(SETUP, 2, "diagtrap");
3112 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3113 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3114 cmd->data.diagass.subcmd_len = 80;
3115 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP;
3116 cmd->data.diagass.type = 1;
3117 cmd->data.diagass.action = action;
3119 case QETH_DIAGS_TRAP_ARM:
3120 cmd->data.diagass.options = 0x0003;
3121 cmd->data.diagass.ext = 0x00010000 +
3122 sizeof(struct qeth_trap_id);
3123 qeth_get_trap_id(card,
3124 (struct qeth_trap_id *)cmd->data.diagass.cdata);
3126 case QETH_DIAGS_TRAP_DISARM:
3127 cmd->data.diagass.options = 0x0001;
3129 case QETH_DIAGS_TRAP_CAPTURE:
3132 return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL);
3134 EXPORT_SYMBOL_GPL(qeth_hw_trap);
3136 int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
3137 unsigned int qdio_error, const char *dbftext)
3140 QETH_CARD_TEXT(card, 2, dbftext);
3141 QETH_CARD_TEXT_(card, 2, " F15=%02X",
3142 buf->element[15].sflags);
3143 QETH_CARD_TEXT_(card, 2, " F14=%02X",
3144 buf->element[14].sflags);
3145 QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
3146 if ((buf->element[15].sflags) == 0x12) {
3147 card->stats.rx_dropped++;
3154 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
3156 void qeth_buffer_reclaim_work(struct work_struct *work)
3158 struct qeth_card *card = container_of(work, struct qeth_card,
3159 buffer_reclaim_work.work);
3161 QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index);
3162 qeth_queue_input_buffer(card, card->reclaim_index);
3165 void qeth_queue_input_buffer(struct qeth_card *card, int index)
3167 struct qeth_qdio_q *queue = card->qdio.in_q;
3168 struct list_head *lh;
3174 count = (index < queue->next_buf_to_init)?
3175 card->qdio.in_buf_pool.buf_count -
3176 (queue->next_buf_to_init - index) :
3177 card->qdio.in_buf_pool.buf_count -
3178 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
3179 /* only requeue at a certain threshold to avoid SIGAs */
3180 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
3181 for (i = queue->next_buf_to_init;
3182 i < queue->next_buf_to_init + count; ++i) {
3183 if (qeth_init_input_buffer(card,
3184 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
3191 if (newcount < count) {
3192 /* we are in memory shortage so we switch back to
3193 traditional skb allocation and drop packages */
3194 atomic_set(&card->force_alloc_skb, 3);
3197 atomic_add_unless(&card->force_alloc_skb, -1, 0);
3202 list_for_each(lh, &card->qdio.in_buf_pool.entry_list)
3204 if (i == card->qdio.in_buf_pool.buf_count) {
3205 QETH_CARD_TEXT(card, 2, "qsarbw");
3206 card->reclaim_index = index;
3207 schedule_delayed_work(
3208 &card->buffer_reclaim_work,
3209 QETH_RECLAIM_WORK_TIME);
3215 * according to old code it should be avoided to requeue all
3216 * 128 buffers in order to benefit from PCI avoidance.
3217 * this function keeps at least one buffer (the buffer at
3218 * 'index') un-requeued -> this buffer is the first buffer that
3219 * will be requeued the next time
3221 if (card->options.performance_stats) {
3222 card->perf_stats.inbound_do_qdio_cnt++;
3223 card->perf_stats.inbound_do_qdio_start_time =
3226 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
3227 queue->next_buf_to_init, count);
3228 if (card->options.performance_stats)
3229 card->perf_stats.inbound_do_qdio_time +=
3231 card->perf_stats.inbound_do_qdio_start_time;
3233 QETH_CARD_TEXT(card, 2, "qinberr");
3235 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
3236 QDIO_MAX_BUFFERS_PER_Q;
3239 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
3241 static int qeth_handle_send_error(struct qeth_card *card,
3242 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
3244 int sbalf15 = buffer->buffer->element[15].sflags;
3246 QETH_CARD_TEXT(card, 6, "hdsnderr");
3247 if (card->info.type == QETH_CARD_TYPE_IQD) {
3254 qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
3257 return QETH_SEND_ERROR_NONE;
3259 if ((sbalf15 >= 15) && (sbalf15 <= 31))
3260 return QETH_SEND_ERROR_RETRY;
3262 QETH_CARD_TEXT(card, 1, "lnkfail");
3263 QETH_CARD_TEXT_(card, 1, "%04x %02x",
3264 (u16)qdio_err, (u8)sbalf15);
3265 return QETH_SEND_ERROR_LINK_FAILURE;
3269 * Switched to packing state if the number of used buffers on a queue
3270 * reaches a certain limit.
3272 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3274 if (!queue->do_pack) {
3275 if (atomic_read(&queue->used_buffers)
3276 >= QETH_HIGH_WATERMARK_PACK){
3277 /* switch non-PACKING -> PACKING */
3278 QETH_CARD_TEXT(queue->card, 6, "np->pack");
3279 if (queue->card->options.performance_stats)
3280 queue->card->perf_stats.sc_dp_p++;
3287 * Switches from packing to non-packing mode. If there is a packing
3288 * buffer on the queue this buffer will be prepared to be flushed.
3289 * In that case 1 is returned to inform the caller. If no buffer
3290 * has to be flushed, zero is returned.
3292 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3294 struct qeth_qdio_out_buffer *buffer;
3295 int flush_count = 0;
3297 if (queue->do_pack) {
3298 if (atomic_read(&queue->used_buffers)
3299 <= QETH_LOW_WATERMARK_PACK) {
3300 /* switch PACKING -> non-PACKING */
3301 QETH_CARD_TEXT(queue->card, 6, "pack->np");
3302 if (queue->card->options.performance_stats)
3303 queue->card->perf_stats.sc_p_dp++;
3305 /* flush packing buffers */
3306 buffer = queue->bufs[queue->next_buf_to_fill];
3307 if ((atomic_read(&buffer->state) ==
3308 QETH_QDIO_BUF_EMPTY) &&
3309 (buffer->next_element_to_fill > 0)) {
3310 atomic_set(&buffer->state,
3311 QETH_QDIO_BUF_PRIMED);
3313 queue->next_buf_to_fill =
3314 (queue->next_buf_to_fill + 1) %
3315 QDIO_MAX_BUFFERS_PER_Q;
3324 * Called to flush a packing buffer if no more pci flags are on the queue.
3325 * Checks if there is a packing buffer and prepares it to be flushed.
3326 * In that case returns 1, otherwise zero.
3328 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3330 struct qeth_qdio_out_buffer *buffer;
3332 buffer = queue->bufs[queue->next_buf_to_fill];
3333 if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3334 (buffer->next_element_to_fill > 0)) {
3335 /* it's a packing buffer */
3336 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3337 queue->next_buf_to_fill =
3338 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3344 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
3347 struct qeth_qdio_out_buffer *buf;
3350 unsigned int qdio_flags;
3352 for (i = index; i < index + count; ++i) {
3353 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3354 buf = queue->bufs[bidx];
3355 buf->buffer->element[buf->next_element_to_fill - 1].eflags |=
3356 SBAL_EFLAGS_LAST_ENTRY;
3358 if (queue->bufstates)
3359 queue->bufstates[bidx].user = buf;
3361 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
3364 if (!queue->do_pack) {
3365 if ((atomic_read(&queue->used_buffers) >=
3366 (QETH_HIGH_WATERMARK_PACK -
3367 QETH_WATERMARK_PACK_FUZZ)) &&
3368 !atomic_read(&queue->set_pci_flags_count)) {
3369 /* it's likely that we'll go to packing
3371 atomic_inc(&queue->set_pci_flags_count);
3372 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3375 if (!atomic_read(&queue->set_pci_flags_count)) {
3377 * there's no outstanding PCI any more, so we
3378 * have to request a PCI to be sure the the PCI
3379 * will wake at some time in the future then we
3380 * can flush packed buffers that might still be
3381 * hanging around, which can happen if no
3382 * further send was requested by the stack
3384 atomic_inc(&queue->set_pci_flags_count);
3385 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3390 queue->card->dev->trans_start = jiffies;
3391 if (queue->card->options.performance_stats) {
3392 queue->card->perf_stats.outbound_do_qdio_cnt++;
3393 queue->card->perf_stats.outbound_do_qdio_start_time =
3396 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3397 if (atomic_read(&queue->set_pci_flags_count))
3398 qdio_flags |= QDIO_FLAG_PCI_OUT;
3399 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3400 queue->queue_no, index, count);
3401 if (queue->card->options.performance_stats)
3402 queue->card->perf_stats.outbound_do_qdio_time +=
3404 queue->card->perf_stats.outbound_do_qdio_start_time;
3405 atomic_add(count, &queue->used_buffers);
3407 queue->card->stats.tx_errors += count;
3408 /* ignore temporary SIGA errors without busy condition */
3411 QETH_CARD_TEXT(queue->card, 2, "flushbuf");
3412 QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
3413 QETH_CARD_TEXT_(queue->card, 2, " idx%d", index);
3414 QETH_CARD_TEXT_(queue->card, 2, " c%d", count);
3415 QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
3417 /* this must not happen under normal circumstances. if it
3418 * happens something is really wrong -> recover */
3419 qeth_schedule_recovery(queue->card);
3422 if (queue->card->options.performance_stats)
3423 queue->card->perf_stats.bufs_sent += count;
3426 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3430 int q_was_packing = 0;
3433 * check if weed have to switch to non-packing mode or if
3434 * we have to get a pci flag out on the queue
3436 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3437 !atomic_read(&queue->set_pci_flags_count)) {
3438 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3439 QETH_OUT_Q_UNLOCKED) {
3441 * If we get in here, there was no action in
3442 * do_send_packet. So, we check if there is a
3443 * packing buffer to be flushed here.
3445 netif_stop_queue(queue->card->dev);
3446 index = queue->next_buf_to_fill;
3447 q_was_packing = queue->do_pack;
3448 /* queue->do_pack may change */
3450 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3452 !atomic_read(&queue->set_pci_flags_count))
3454 qeth_flush_buffers_on_no_pci(queue);
3455 if (queue->card->options.performance_stats &&
3457 queue->card->perf_stats.bufs_sent_pack +=
3460 qeth_flush_buffers(queue, index, flush_cnt);
3461 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3466 void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
3467 unsigned long card_ptr)
3469 struct qeth_card *card = (struct qeth_card *)card_ptr;
3471 if (card->dev && (card->dev->flags & IFF_UP))
3472 napi_schedule(&card->napi);
3474 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
3476 int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
3480 if (card->options.cq == QETH_CQ_NOTAVAILABLE) {
3484 if (card->options.cq == cq) {
3489 if (card->state != CARD_STATE_DOWN &&
3490 card->state != CARD_STATE_RECOVER) {
3495 qeth_free_qdio_buffers(card);
3496 card->options.cq = cq;
3503 EXPORT_SYMBOL_GPL(qeth_configure_cq);
3506 static void qeth_qdio_cq_handler(struct qeth_card *card,
3507 unsigned int qdio_err,
3508 unsigned int queue, int first_element, int count) {
3509 struct qeth_qdio_q *cq = card->qdio.c_q;
3513 if (!qeth_is_cq(card, queue))
3516 QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element);
3517 QETH_CARD_TEXT_(card, 5, "qcqhc%d", count);
3518 QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err);
3521 netif_stop_queue(card->dev);
3522 qeth_schedule_recovery(card);
3526 if (card->options.performance_stats) {
3527 card->perf_stats.cq_cnt++;
3528 card->perf_stats.cq_start_time = qeth_get_micros();
3531 for (i = first_element; i < first_element + count; ++i) {
3532 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3533 struct qdio_buffer *buffer = &cq->qdio_bufs[bidx];
3537 while (buffer->element[e].addr) {
3538 unsigned long phys_aob_addr;
3540 phys_aob_addr = (unsigned long) buffer->element[e].addr;
3541 qeth_qdio_handle_aob(card, phys_aob_addr);
3542 buffer->element[e].addr = NULL;
3543 buffer->element[e].eflags = 0;
3544 buffer->element[e].sflags = 0;
3545 buffer->element[e].length = 0;
3550 buffer->element[15].eflags = 0;
3551 buffer->element[15].sflags = 0;
3553 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue,
3554 card->qdio.c_q->next_buf_to_init,
3557 dev_warn(&card->gdev->dev,
3558 "QDIO reported an error, rc=%i\n", rc);
3559 QETH_CARD_TEXT(card, 2, "qcqherr");
3561 card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init
3562 + count) % QDIO_MAX_BUFFERS_PER_Q;
3564 netif_wake_queue(card->dev);
3566 if (card->options.performance_stats) {
3567 int delta_t = qeth_get_micros();
3568 delta_t -= card->perf_stats.cq_start_time;
3569 card->perf_stats.cq_time += delta_t;
3575 void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
3576 unsigned int queue, int first_elem, int count,
3577 unsigned long card_ptr)
3579 struct qeth_card *card = (struct qeth_card *)card_ptr;
3581 QETH_CARD_TEXT_(card, 2, "qihq%d", queue);
3582 QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err);
3584 if (qeth_is_cq(card, queue))
3585 qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count);
3587 qeth_schedule_recovery(card);
3591 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
3593 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
3594 unsigned int qdio_error, int __queue, int first_element,
3595 int count, unsigned long card_ptr)
3597 struct qeth_card *card = (struct qeth_card *) card_ptr;
3598 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3599 struct qeth_qdio_out_buffer *buffer;
3602 QETH_CARD_TEXT(card, 6, "qdouhdl");
3603 if (qdio_error & QDIO_ERROR_FATAL) {
3604 QETH_CARD_TEXT(card, 2, "achkcond");
3605 netif_stop_queue(card->dev);
3606 qeth_schedule_recovery(card);
3609 if (card->options.performance_stats) {
3610 card->perf_stats.outbound_handler_cnt++;
3611 card->perf_stats.outbound_handler_start_time =
3614 for (i = first_element; i < (first_element + count); ++i) {
3615 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3616 buffer = queue->bufs[bidx];
3617 qeth_handle_send_error(card, buffer, qdio_error);
3619 if (queue->bufstates &&
3620 (queue->bufstates[bidx].flags &
3621 QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) {
3622 WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
3624 if (atomic_cmpxchg(&buffer->state,
3625 QETH_QDIO_BUF_PRIMED,
3626 QETH_QDIO_BUF_PENDING) ==
3627 QETH_QDIO_BUF_PRIMED) {
3628 qeth_notify_skbs(queue, buffer,
3631 buffer->aob = queue->bufstates[bidx].aob;
3632 QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx);
3633 QETH_CARD_TEXT(queue->card, 5, "aob");
3634 QETH_CARD_TEXT_(queue->card, 5, "%lx",
3635 virt_to_phys(buffer->aob));
3636 if (qeth_init_qdio_out_buf(queue, bidx)) {
3637 QETH_CARD_TEXT(card, 2, "outofbuf");
3638 qeth_schedule_recovery(card);
3641 if (card->options.cq == QETH_CQ_ENABLED) {
3642 enum iucv_tx_notify n;
3644 n = qeth_compute_cq_notification(
3645 buffer->buffer->element[15].sflags, 0);
3646 qeth_notify_skbs(queue, buffer, n);
3649 qeth_clear_output_buffer(queue, buffer,
3650 QETH_QDIO_BUF_EMPTY);
3652 qeth_cleanup_handled_pending(queue, bidx, 0);
3654 atomic_sub(count, &queue->used_buffers);
3655 /* check if we need to do something on this outbound queue */
3656 if (card->info.type != QETH_CARD_TYPE_IQD)
3657 qeth_check_outbound_queue(queue);
3659 netif_wake_queue(queue->card->dev);
3660 if (card->options.performance_stats)
3661 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3662 card->perf_stats.outbound_handler_start_time;
3664 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
3667 * Note: Function assumes that we have 4 outbound queues.
3669 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3670 int ipv, int cast_type)
3675 if (cast_type && card->info.is_multicast_different)
3676 return card->info.is_multicast_different &
3677 (card->qdio.no_out_queues - 1);
3679 switch (card->qdio.do_prio_queueing) {
3680 case QETH_PRIO_Q_ING_TOS:
3681 case QETH_PRIO_Q_ING_PREC:
3684 tos = ipv4_get_dsfield(ip_hdr(skb));
3687 tos = ipv6_get_dsfield(ipv6_hdr(skb));
3690 return card->qdio.default_out_queue;
3692 if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC)
3693 return ~tos >> 6 & 3;
3694 if (tos & IPTOS_MINCOST)
3696 if (tos & IPTOS_RELIABILITY)
3698 if (tos & IPTOS_THROUGHPUT)
3700 if (tos & IPTOS_LOWDELAY)
3703 case QETH_PRIO_Q_ING_SKB:
3704 if (skb->priority > 5)
3706 return ~skb->priority >> 1 & 3;
3707 case QETH_PRIO_Q_ING_VLAN:
3708 tci = &((struct ethhdr *)skb->data)->h_proto;
3709 if (*tci == ETH_P_8021Q)
3710 return ~*(tci + 1) >> (VLAN_PRIO_SHIFT + 1) & 3;
3715 return card->qdio.default_out_queue;
3717 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
3719 int qeth_get_elements_for_frags(struct sk_buff *skb)
3721 int cnt, length, e, elements = 0;
3722 struct skb_frag_struct *frag;
3725 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3726 frag = &skb_shinfo(skb)->frags[cnt];
3727 data = (char *)page_to_phys(skb_frag_page(frag)) +
3729 length = frag->size;
3730 e = PFN_UP((unsigned long)data + length - 1) -
3731 PFN_DOWN((unsigned long)data);
3736 EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags);
3738 int qeth_get_elements_no(struct qeth_card *card,
3739 struct sk_buff *skb, int elems)
3741 int dlen = skb->len - skb->data_len;
3742 int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) -
3743 PFN_DOWN((unsigned long)skb->data);
3745 elements_needed += qeth_get_elements_for_frags(skb);
3747 if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3748 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3749 "(Number=%d / Length=%d). Discarded.\n",
3750 (elements_needed+elems), skb->len);
3753 return elements_needed;
3755 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3757 int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len)
3759 int hroom, inpage, rest;
3761 if (((unsigned long)skb->data & PAGE_MASK) !=
3762 (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
3763 hroom = skb_headroom(skb);
3764 inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
3765 rest = len - inpage;
3768 memmove(skb->data - rest, skb->data, skb->len - skb->data_len);
3771 *hdr = (struct qeth_hdr *)skb->data;
3772 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
3776 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
3778 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3779 struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3782 int length = skb->len - skb->data_len;
3787 struct skb_frag_struct *frag;
3789 element = *next_element_to_fill;
3791 first_lap = (is_tso == 0 ? 1 : 0);
3794 data = skb->data + offset;
3799 while (length > 0) {
3800 /* length_here is the remaining amount of data in this page */
3801 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3802 if (length < length_here)
3803 length_here = length;
3805 buffer->element[element].addr = data;
3806 buffer->element[element].length = length_here;
3807 length -= length_here;
3810 if (skb_shinfo(skb)->nr_frags)
3811 buffer->element[element].eflags =
3812 SBAL_EFLAGS_FIRST_FRAG;
3814 buffer->element[element].eflags = 0;
3816 buffer->element[element].eflags =
3817 SBAL_EFLAGS_MIDDLE_FRAG;
3820 buffer->element[element].eflags =
3821 SBAL_EFLAGS_FIRST_FRAG;
3823 buffer->element[element].eflags =
3824 SBAL_EFLAGS_MIDDLE_FRAG;
3826 data += length_here;
3831 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3832 frag = &skb_shinfo(skb)->frags[cnt];
3833 data = (char *)page_to_phys(skb_frag_page(frag)) +
3835 length = frag->size;
3836 while (length > 0) {
3837 length_here = PAGE_SIZE -
3838 ((unsigned long) data % PAGE_SIZE);
3839 if (length < length_here)
3840 length_here = length;
3842 buffer->element[element].addr = data;
3843 buffer->element[element].length = length_here;
3844 buffer->element[element].eflags =
3845 SBAL_EFLAGS_MIDDLE_FRAG;
3846 length -= length_here;
3847 data += length_here;
3852 if (buffer->element[element - 1].eflags)
3853 buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG;
3854 *next_element_to_fill = element;
3857 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3858 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3859 struct qeth_hdr *hdr, int offset, int hd_len)
3861 struct qdio_buffer *buffer;
3862 int flush_cnt = 0, hdr_len, large_send = 0;
3864 buffer = buf->buffer;
3865 atomic_inc(&skb->users);
3866 skb_queue_tail(&buf->skb_list, skb);
3868 /*check first on TSO ....*/
3869 if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3870 int element = buf->next_element_to_fill;
3872 hdr_len = sizeof(struct qeth_hdr_tso) +
3873 ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3874 /*fill first buffer entry only with header information */
3875 buffer->element[element].addr = skb->data;
3876 buffer->element[element].length = hdr_len;
3877 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
3878 buf->next_element_to_fill++;
3879 skb->data += hdr_len;
3880 skb->len -= hdr_len;
3885 int element = buf->next_element_to_fill;
3886 buffer->element[element].addr = hdr;
3887 buffer->element[element].length = sizeof(struct qeth_hdr) +
3889 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
3890 buf->is_header[element] = 1;
3891 buf->next_element_to_fill++;
3894 __qeth_fill_buffer(skb, buffer, large_send,
3895 (int *)&buf->next_element_to_fill, offset);
3897 if (!queue->do_pack) {
3898 QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
3899 /* set state to PRIMED -> will be flushed */
3900 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3903 QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
3904 if (queue->card->options.performance_stats)
3905 queue->card->perf_stats.skbs_sent_pack++;
3906 if (buf->next_element_to_fill >=
3907 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3909 * packed buffer if full -> set state PRIMED
3910 * -> will be flushed
3912 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3919 int qeth_do_send_packet_fast(struct qeth_card *card,
3920 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3921 struct qeth_hdr *hdr, int elements_needed,
3922 int offset, int hd_len)
3924 struct qeth_qdio_out_buffer *buffer;
3927 /* spin until we get the queue ... */
3928 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3929 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3930 /* ... now we've got the queue */
3931 index = queue->next_buf_to_fill;
3932 buffer = queue->bufs[queue->next_buf_to_fill];
3934 * check if buffer is empty to make sure that we do not 'overtake'
3935 * ourselves and try to fill a buffer that is already primed
3937 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3939 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3940 QDIO_MAX_BUFFERS_PER_Q;
3941 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3942 qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
3943 qeth_flush_buffers(queue, index, 1);
3946 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3949 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3951 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3952 struct sk_buff *skb, struct qeth_hdr *hdr,
3953 int elements_needed)
3955 struct qeth_qdio_out_buffer *buffer;
3957 int flush_count = 0;
3962 /* spin until we get the queue ... */
3963 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3964 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3965 start_index = queue->next_buf_to_fill;
3966 buffer = queue->bufs[queue->next_buf_to_fill];
3968 * check if buffer is empty to make sure that we do not 'overtake'
3969 * ourselves and try to fill a buffer that is already primed
3971 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3972 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3975 /* check if we need to switch packing state of this queue */
3976 qeth_switch_to_packing_if_needed(queue);
3977 if (queue->do_pack) {
3979 /* does packet fit in current buffer? */
3980 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3981 buffer->next_element_to_fill) < elements_needed) {
3982 /* ... no -> set state PRIMED */
3983 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3985 queue->next_buf_to_fill =
3986 (queue->next_buf_to_fill + 1) %
3987 QDIO_MAX_BUFFERS_PER_Q;
3988 buffer = queue->bufs[queue->next_buf_to_fill];
3989 /* we did a step forward, so check buffer state
3991 if (atomic_read(&buffer->state) !=
3992 QETH_QDIO_BUF_EMPTY) {
3993 qeth_flush_buffers(queue, start_index,
3995 atomic_set(&queue->state,
3996 QETH_OUT_Q_UNLOCKED);
4001 tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
4002 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4003 QDIO_MAX_BUFFERS_PER_Q;
4006 qeth_flush_buffers(queue, start_index, flush_count);
4007 else if (!atomic_read(&queue->set_pci_flags_count))
4008 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4010 * queue->state will go from LOCKED -> UNLOCKED or from
4011 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4012 * (switch packing state or flush buffer to get another pci flag out).
4013 * In that case we will enter this loop
4015 while (atomic_dec_return(&queue->state)) {
4017 start_index = queue->next_buf_to_fill;
4018 /* check if we can go back to non-packing state */
4019 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4021 * check if we need to flush a packing buffer to get a pci
4022 * flag out on the queue
4024 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4025 flush_count += qeth_flush_buffers_on_no_pci(queue);
4027 qeth_flush_buffers(queue, start_index, flush_count);
4029 /* at this point the queue is UNLOCKED again */
4030 if (queue->card->options.performance_stats && do_pack)
4031 queue->card->perf_stats.bufs_sent_pack += flush_count;
4035 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
4037 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
4038 struct qeth_reply *reply, unsigned long data)
4040 struct qeth_ipa_cmd *cmd;
4041 struct qeth_ipacmd_setadpparms *setparms;
4043 QETH_CARD_TEXT(card, 4, "prmadpcb");
4045 cmd = (struct qeth_ipa_cmd *) data;
4046 setparms = &(cmd->data.setadapterparms);
4048 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
4049 if (cmd->hdr.return_code) {
4050 QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code);
4051 setparms->data.mode = SET_PROMISC_MODE_OFF;
4053 card->info.promisc_mode = setparms->data.mode;
4057 void qeth_setadp_promisc_mode(struct qeth_card *card)
4059 enum qeth_ipa_promisc_modes mode;
4060 struct net_device *dev = card->dev;
4061 struct qeth_cmd_buffer *iob;
4062 struct qeth_ipa_cmd *cmd;
4064 QETH_CARD_TEXT(card, 4, "setprom");
4066 if (((dev->flags & IFF_PROMISC) &&
4067 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
4068 (!(dev->flags & IFF_PROMISC) &&
4069 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
4071 mode = SET_PROMISC_MODE_OFF;
4072 if (dev->flags & IFF_PROMISC)
4073 mode = SET_PROMISC_MODE_ON;
4074 QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
4076 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
4077 sizeof(struct qeth_ipacmd_setadpparms));
4078 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
4079 cmd->data.setadapterparms.data.mode = mode;
4080 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
4082 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
4084 int qeth_change_mtu(struct net_device *dev, int new_mtu)
4086 struct qeth_card *card;
4089 card = dev->ml_priv;
4091 QETH_CARD_TEXT(card, 4, "chgmtu");
4092 sprintf(dbf_text, "%8x", new_mtu);
4093 QETH_CARD_TEXT(card, 4, dbf_text);
4097 if (new_mtu > 65535)
4099 if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
4100 (!qeth_mtu_is_valid(card, new_mtu)))
4105 EXPORT_SYMBOL_GPL(qeth_change_mtu);
4107 struct net_device_stats *qeth_get_stats(struct net_device *dev)
4109 struct qeth_card *card;
4111 card = dev->ml_priv;
4113 QETH_CARD_TEXT(card, 5, "getstat");
4115 return &card->stats;
4117 EXPORT_SYMBOL_GPL(qeth_get_stats);
4119 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
4120 struct qeth_reply *reply, unsigned long data)
4122 struct qeth_ipa_cmd *cmd;
4124 QETH_CARD_TEXT(card, 4, "chgmaccb");
4126 cmd = (struct qeth_ipa_cmd *) data;
4127 if (!card->options.layer2 ||
4128 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
4129 memcpy(card->dev->dev_addr,
4130 &cmd->data.setadapterparms.data.change_addr.addr,
4132 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
4134 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4138 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
4141 struct qeth_cmd_buffer *iob;
4142 struct qeth_ipa_cmd *cmd;
4144 QETH_CARD_TEXT(card, 4, "chgmac");
4146 iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
4147 sizeof(struct qeth_ipacmd_setadpparms));
4148 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4149 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
4150 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
4151 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
4152 card->dev->dev_addr, OSA_ADDR_LEN);
4153 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
4157 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
4159 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
4160 struct qeth_reply *reply, unsigned long data)
4162 struct qeth_ipa_cmd *cmd;
4163 struct qeth_set_access_ctrl *access_ctrl_req;
4164 int fallback = *(int *)reply->param;
4166 QETH_CARD_TEXT(card, 4, "setaccb");
4168 cmd = (struct qeth_ipa_cmd *) data;
4169 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4170 QETH_DBF_TEXT_(SETUP, 2, "setaccb");
4171 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4172 QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
4173 cmd->data.setadapterparms.hdr.return_code);
4174 if (cmd->data.setadapterparms.hdr.return_code !=
4175 SET_ACCESS_CTRL_RC_SUCCESS)
4176 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4177 card->gdev->dev.kobj.name,
4178 access_ctrl_req->subcmd_code,
4179 cmd->data.setadapterparms.hdr.return_code);
4180 switch (cmd->data.setadapterparms.hdr.return_code) {
4181 case SET_ACCESS_CTRL_RC_SUCCESS:
4182 if (card->options.isolation == ISOLATION_MODE_NONE) {
4183 dev_info(&card->gdev->dev,
4184 "QDIO data connection isolation is deactivated\n");
4186 dev_info(&card->gdev->dev,
4187 "QDIO data connection isolation is activated\n");
4190 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
4191 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
4192 "deactivated\n", dev_name(&card->gdev->dev));
4194 card->options.isolation = card->options.prev_isolation;
4196 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
4197 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
4198 " activated\n", dev_name(&card->gdev->dev));
4200 card->options.isolation = card->options.prev_isolation;
4202 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
4203 dev_err(&card->gdev->dev, "Adapter does not "
4204 "support QDIO data connection isolation\n");
4206 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
4207 dev_err(&card->gdev->dev,
4208 "Adapter is dedicated. "
4209 "QDIO data connection isolation not supported\n");
4211 card->options.isolation = card->options.prev_isolation;
4213 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
4214 dev_err(&card->gdev->dev,
4215 "TSO does not permit QDIO data connection isolation\n");
4217 card->options.isolation = card->options.prev_isolation;
4219 case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED:
4220 dev_err(&card->gdev->dev, "The adjacent switch port does not "
4221 "support reflective relay mode\n");
4223 card->options.isolation = card->options.prev_isolation;
4225 case SET_ACCESS_CTRL_RC_REFLREL_FAILED:
4226 dev_err(&card->gdev->dev, "The reflective relay mode cannot be "
4227 "enabled at the adjacent switch port");
4229 card->options.isolation = card->options.prev_isolation;
4231 case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED:
4232 dev_warn(&card->gdev->dev, "Turning off reflective relay mode "
4233 "at the adjacent switch failed\n");
4236 /* this should never happen */
4238 card->options.isolation = card->options.prev_isolation;
4241 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4245 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
4246 enum qeth_ipa_isolation_modes isolation, int fallback)
4249 struct qeth_cmd_buffer *iob;
4250 struct qeth_ipa_cmd *cmd;
4251 struct qeth_set_access_ctrl *access_ctrl_req;
4253 QETH_CARD_TEXT(card, 4, "setacctl");
4255 QETH_DBF_TEXT_(SETUP, 2, "setacctl");
4256 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4258 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
4259 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4260 sizeof(struct qeth_set_access_ctrl));
4261 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4262 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4263 access_ctrl_req->subcmd_code = isolation;
4265 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
4267 QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
4271 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback)
4275 QETH_CARD_TEXT(card, 4, "setactlo");
4277 if ((card->info.type == QETH_CARD_TYPE_OSD ||
4278 card->info.type == QETH_CARD_TYPE_OSX) &&
4279 qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
4280 rc = qeth_setadpparms_set_access_ctrl(card,
4281 card->options.isolation, fallback);
4284 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4285 card->gdev->dev.kobj.name,
4289 } else if (card->options.isolation != ISOLATION_MODE_NONE) {
4290 card->options.isolation = ISOLATION_MODE_NONE;
4292 dev_err(&card->gdev->dev, "Adapter does not "
4293 "support QDIO data connection isolation\n");
4298 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
4300 void qeth_tx_timeout(struct net_device *dev)
4302 struct qeth_card *card;
4304 card = dev->ml_priv;
4305 QETH_CARD_TEXT(card, 4, "txtimeo");
4306 card->stats.tx_errors++;
4307 qeth_schedule_recovery(card);
4309 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
4311 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4313 struct qeth_card *card = dev->ml_priv;
4317 case MII_BMCR: /* Basic mode control register */
4319 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
4320 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4321 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4322 rc |= BMCR_SPEED100;
4324 case MII_BMSR: /* Basic mode status register */
4325 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4326 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4329 case MII_PHYSID1: /* PHYS ID 1 */
4330 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4332 rc = (rc >> 5) & 0xFFFF;
4334 case MII_PHYSID2: /* PHYS ID 2 */
4335 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4337 case MII_ADVERTISE: /* Advertisement control reg */
4340 case MII_LPA: /* Link partner ability reg */
4341 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4342 LPA_100BASE4 | LPA_LPACK;
4344 case MII_EXPANSION: /* Expansion register */
4346 case MII_DCOUNTER: /* disconnect counter */
4348 case MII_FCSCOUNTER: /* false carrier counter */
4350 case MII_NWAYTEST: /* N-way auto-neg test register */
4352 case MII_RERRCOUNTER: /* rx error counter */
4353 rc = card->stats.rx_errors;
4355 case MII_SREVISION: /* silicon revision */
4357 case MII_RESV1: /* reserved 1 */
4359 case MII_LBRERROR: /* loopback, rx, bypass error */
4361 case MII_PHYADDR: /* physical address */
4363 case MII_RESV2: /* reserved 2 */
4365 case MII_TPISTATUS: /* TPI status for 10mbps */
4367 case MII_NCONFIG: /* network interface config */
4374 EXPORT_SYMBOL_GPL(qeth_mdio_read);
4376 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
4377 struct qeth_cmd_buffer *iob, int len,
4378 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
4384 QETH_CARD_TEXT(card, 4, "sendsnmp");
4386 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4387 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4388 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4389 /* adjust PDU length fields in IPA_PDU_HEADER */
4390 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4392 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4393 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4394 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4395 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4396 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4397 reply_cb, reply_param);
4400 static int qeth_snmp_command_cb(struct qeth_card *card,
4401 struct qeth_reply *reply, unsigned long sdata)
4403 struct qeth_ipa_cmd *cmd;
4404 struct qeth_arp_query_info *qinfo;
4405 struct qeth_snmp_cmd *snmp;
4406 unsigned char *data;
4409 QETH_CARD_TEXT(card, 3, "snpcmdcb");
4411 cmd = (struct qeth_ipa_cmd *) sdata;
4412 data = (unsigned char *)((char *)cmd - reply->offset);
4413 qinfo = (struct qeth_arp_query_info *) reply->param;
4414 snmp = &cmd->data.setadapterparms.data.snmp;
4416 if (cmd->hdr.return_code) {
4417 QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code);
4420 if (cmd->data.setadapterparms.hdr.return_code) {
4421 cmd->hdr.return_code =
4422 cmd->data.setadapterparms.hdr.return_code;
4423 QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code);
4426 data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
4427 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4428 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4430 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
4432 /* check if there is enough room in userspace */
4433 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4434 QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
4435 cmd->hdr.return_code = IPA_RC_ENOMEM;
4438 QETH_CARD_TEXT_(card, 4, "snore%i",
4439 cmd->data.setadapterparms.hdr.used_total);
4440 QETH_CARD_TEXT_(card, 4, "sseqn%i",
4441 cmd->data.setadapterparms.hdr.seq_no);
4442 /*copy entries to user buffer*/
4443 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4444 memcpy(qinfo->udata + qinfo->udata_offset,
4446 data_len + offsetof(struct qeth_snmp_cmd, data));
4447 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4449 memcpy(qinfo->udata + qinfo->udata_offset,
4450 (char *)&snmp->request, data_len);
4452 qinfo->udata_offset += data_len;
4453 /* check if all replies received ... */
4454 QETH_CARD_TEXT_(card, 4, "srtot%i",
4455 cmd->data.setadapterparms.hdr.used_total);
4456 QETH_CARD_TEXT_(card, 4, "srseq%i",
4457 cmd->data.setadapterparms.hdr.seq_no);
4458 if (cmd->data.setadapterparms.hdr.seq_no <
4459 cmd->data.setadapterparms.hdr.used_total)
4464 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
4466 struct qeth_cmd_buffer *iob;
4467 struct qeth_ipa_cmd *cmd;
4468 struct qeth_snmp_ureq *ureq;
4469 unsigned int req_len;
4470 struct qeth_arp_query_info qinfo = {0, };
4473 QETH_CARD_TEXT(card, 3, "snmpcmd");
4475 if (card->info.guestlan)
4478 if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
4479 (!card->options.layer2)) {
4482 /* skip 4 bytes (data_len struct member) to get req_len */
4483 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4485 if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE -
4486 sizeof(struct qeth_ipacmd_hdr) -
4487 sizeof(struct qeth_ipacmd_setadpparms_hdr)))
4489 ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
4491 QETH_CARD_TEXT(card, 2, "snmpnome");
4492 return PTR_ERR(ureq);
4494 qinfo.udata_len = ureq->hdr.data_len;
4495 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
4500 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4502 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4503 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4504 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4505 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4506 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4507 qeth_snmp_command_cb, (void *)&qinfo);
4509 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4510 QETH_CARD_IFNAME(card), rc);
4512 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4520 EXPORT_SYMBOL_GPL(qeth_snmp_command);
4522 static int qeth_setadpparms_query_oat_cb(struct qeth_card *card,
4523 struct qeth_reply *reply, unsigned long data)
4525 struct qeth_ipa_cmd *cmd;
4526 struct qeth_qoat_priv *priv;
4530 QETH_CARD_TEXT(card, 3, "qoatcb");
4532 cmd = (struct qeth_ipa_cmd *)data;
4533 priv = (struct qeth_qoat_priv *)reply->param;
4534 resdatalen = cmd->data.setadapterparms.hdr.cmdlength;
4535 resdata = (char *)data + 28;
4537 if (resdatalen > (priv->buffer_len - priv->response_len)) {
4538 cmd->hdr.return_code = IPA_RC_FFFF;
4542 memcpy((priv->buffer + priv->response_len), resdata,
4544 priv->response_len += resdatalen;
4546 if (cmd->data.setadapterparms.hdr.seq_no <
4547 cmd->data.setadapterparms.hdr.used_total)
4552 int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
4555 struct qeth_cmd_buffer *iob;
4556 struct qeth_ipa_cmd *cmd;
4557 struct qeth_query_oat *oat_req;
4558 struct qeth_query_oat_data oat_data;
4559 struct qeth_qoat_priv priv;
4562 QETH_CARD_TEXT(card, 3, "qoatcmd");
4564 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) {
4569 if (copy_from_user(&oat_data, udata,
4570 sizeof(struct qeth_query_oat_data))) {
4575 priv.buffer_len = oat_data.buffer_len;
4576 priv.response_len = 0;
4577 priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL);
4583 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT,
4584 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4585 sizeof(struct qeth_query_oat));
4586 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4587 oat_req = &cmd->data.setadapterparms.data.query_oat;
4588 oat_req->subcmd_code = oat_data.command;
4590 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb,
4593 if (is_compat_task())
4594 tmp = compat_ptr(oat_data.ptr);
4596 tmp = (void __user *)(unsigned long)oat_data.ptr;
4598 if (copy_to_user(tmp, priv.buffer,
4599 priv.response_len)) {
4604 oat_data.response_len = priv.response_len;
4606 if (copy_to_user(udata, &oat_data,
4607 sizeof(struct qeth_query_oat_data)))
4610 if (rc == IPA_RC_FFFF)
4618 EXPORT_SYMBOL_GPL(qeth_query_oat_command);
4620 static int qeth_query_card_info_cb(struct qeth_card *card,
4621 struct qeth_reply *reply, unsigned long data)
4623 struct qeth_ipa_cmd *cmd;
4624 struct qeth_query_card_info *card_info;
4625 struct carrier_info *carrier_info;
4627 QETH_CARD_TEXT(card, 2, "qcrdincb");
4628 carrier_info = (struct carrier_info *)reply->param;
4629 cmd = (struct qeth_ipa_cmd *)data;
4630 card_info = &cmd->data.setadapterparms.data.card_info;
4631 if (cmd->data.setadapterparms.hdr.return_code == 0) {
4632 carrier_info->card_type = card_info->card_type;
4633 carrier_info->port_mode = card_info->port_mode;
4634 carrier_info->port_speed = card_info->port_speed;
4637 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4641 int qeth_query_card_info(struct qeth_card *card,
4642 struct carrier_info *carrier_info)
4644 struct qeth_cmd_buffer *iob;
4646 QETH_CARD_TEXT(card, 2, "qcrdinfo");
4647 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO))
4649 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO,
4650 sizeof(struct qeth_ipacmd_setadpparms_hdr));
4651 return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb,
4652 (void *)carrier_info);
4654 EXPORT_SYMBOL_GPL(qeth_query_card_info);
4656 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
4658 switch (card->info.type) {
4659 case QETH_CARD_TYPE_IQD:
4666 static void qeth_determine_capabilities(struct qeth_card *card)
4671 struct ccw_device *ddev;
4672 int ddev_offline = 0;
4674 QETH_DBF_TEXT(SETUP, 2, "detcapab");
4675 ddev = CARD_DDEV(card);
4676 if (!ddev->online) {
4678 rc = ccw_device_set_online(ddev);
4680 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4685 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
4687 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4688 dev_name(&card->gdev->dev), rc);
4689 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4692 qeth_configure_unitaddr(card, prcd);
4694 qeth_configure_blkt_default(card, prcd);
4697 rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
4699 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4701 QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt);
4702 QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac1);
4703 QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac3);
4704 QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt);
4705 if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) ||
4706 ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) ||
4707 ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) {
4708 dev_info(&card->gdev->dev,
4709 "Completion Queueing supported\n");
4711 card->options.cq = QETH_CQ_NOTAVAILABLE;
4716 if (ddev_offline == 1)
4717 ccw_device_set_offline(ddev);
4722 static inline void qeth_qdio_establish_cq(struct qeth_card *card,
4723 struct qdio_buffer **in_sbal_ptrs,
4724 void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) {
4727 if (card->options.cq == QETH_CQ_ENABLED) {
4728 int offset = QDIO_MAX_BUFFERS_PER_Q *
4729 (card->qdio.no_in_queues - 1);
4730 i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1);
4731 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4732 in_sbal_ptrs[offset + i] = (struct qdio_buffer *)
4733 virt_to_phys(card->qdio.c_q->bufs[i].buffer);
4736 queue_start_poll[card->qdio.no_in_queues - 1] = NULL;
4740 static int qeth_qdio_establish(struct qeth_card *card)
4742 struct qdio_initialize init_data;
4743 char *qib_param_field;
4744 struct qdio_buffer **in_sbal_ptrs;
4745 void (**queue_start_poll) (struct ccw_device *, int, unsigned long);
4746 struct qdio_buffer **out_sbal_ptrs;
4750 QETH_DBF_TEXT(SETUP, 2, "qdioest");
4752 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
4754 if (!qib_param_field) {
4756 goto out_free_nothing;
4759 qeth_create_qib_param_field(card, qib_param_field);
4760 qeth_create_qib_param_field_blkt(card, qib_param_field);
4762 in_sbal_ptrs = kzalloc(card->qdio.no_in_queues *
4763 QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
4765 if (!in_sbal_ptrs) {
4767 goto out_free_qib_param;
4769 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4770 in_sbal_ptrs[i] = (struct qdio_buffer *)
4771 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
4774 queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues,
4776 if (!queue_start_poll) {
4778 goto out_free_in_sbals;
4780 for (i = 0; i < card->qdio.no_in_queues; ++i)
4781 queue_start_poll[i] = card->discipline->start_poll;
4783 qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
4786 kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
4787 sizeof(void *), GFP_KERNEL);
4788 if (!out_sbal_ptrs) {
4790 goto out_free_queue_start_poll;
4792 for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
4793 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
4794 out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
4795 card->qdio.out_qs[i]->bufs[j]->buffer);
4798 memset(&init_data, 0, sizeof(struct qdio_initialize));
4799 init_data.cdev = CARD_DDEV(card);
4800 init_data.q_format = qeth_get_qdio_q_format(card);
4801 init_data.qib_param_field_format = 0;
4802 init_data.qib_param_field = qib_param_field;
4803 init_data.no_input_qs = card->qdio.no_in_queues;
4804 init_data.no_output_qs = card->qdio.no_out_queues;
4805 init_data.input_handler = card->discipline->input_handler;
4806 init_data.output_handler = card->discipline->output_handler;
4807 init_data.queue_start_poll_array = queue_start_poll;
4808 init_data.int_parm = (unsigned long) card;
4809 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
4810 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
4811 init_data.output_sbal_state_array = card->qdio.out_bufstates;
4812 init_data.scan_threshold =
4813 (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32;
4815 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
4816 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
4817 rc = qdio_allocate(&init_data);
4819 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
4822 rc = qdio_establish(&init_data);
4824 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
4825 qdio_free(CARD_DDEV(card));
4829 switch (card->options.cq) {
4830 case QETH_CQ_ENABLED:
4831 dev_info(&card->gdev->dev, "Completion Queue support enabled");
4833 case QETH_CQ_DISABLED:
4834 dev_info(&card->gdev->dev, "Completion Queue support disabled");
4840 kfree(out_sbal_ptrs);
4841 out_free_queue_start_poll:
4842 kfree(queue_start_poll);
4844 kfree(in_sbal_ptrs);
4846 kfree(qib_param_field);
4851 static void qeth_core_free_card(struct qeth_card *card)
4854 QETH_DBF_TEXT(SETUP, 2, "freecrd");
4855 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4856 qeth_clean_channel(&card->read);
4857 qeth_clean_channel(&card->write);
4859 free_netdev(card->dev);
4860 kfree(card->ip_tbd_list);
4861 qeth_free_qdio_buffers(card);
4862 unregister_service_level(&card->qeth_service_level);
4866 void qeth_trace_features(struct qeth_card *card)
4868 QETH_CARD_TEXT(card, 2, "features");
4869 QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.supported_funcs);
4870 QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa4.enabled_funcs);
4871 QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.supported_funcs);
4872 QETH_CARD_TEXT_(card, 2, "%x", card->options.ipa6.enabled_funcs);
4873 QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.supported_funcs);
4874 QETH_CARD_TEXT_(card, 2, "%x", card->options.adp.enabled_funcs);
4875 QETH_CARD_TEXT_(card, 2, "%x", card->info.diagass_support);
4877 EXPORT_SYMBOL_GPL(qeth_trace_features);
4879 static struct ccw_device_id qeth_ids[] = {
4880 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
4881 .driver_info = QETH_CARD_TYPE_OSD},
4882 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
4883 .driver_info = QETH_CARD_TYPE_IQD},
4884 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
4885 .driver_info = QETH_CARD_TYPE_OSN},
4886 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
4887 .driver_info = QETH_CARD_TYPE_OSM},
4888 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
4889 .driver_info = QETH_CARD_TYPE_OSX},
4892 MODULE_DEVICE_TABLE(ccw, qeth_ids);
4894 static struct ccw_driver qeth_ccw_driver = {
4896 .owner = THIS_MODULE,
4900 .probe = ccwgroup_probe_ccwdev,
4901 .remove = ccwgroup_remove_ccwdev,
4904 int qeth_core_hardsetup_card(struct qeth_card *card)
4909 QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
4910 atomic_set(&card->force_alloc_skb, 0);
4911 qeth_update_from_chp_desc(card);
4914 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
4915 dev_name(&card->gdev->dev));
4916 rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
4917 ccw_device_set_offline(CARD_DDEV(card));
4918 ccw_device_set_offline(CARD_WDEV(card));
4919 ccw_device_set_offline(CARD_RDEV(card));
4920 qdio_free(CARD_DDEV(card));
4921 rc = ccw_device_set_online(CARD_RDEV(card));
4924 rc = ccw_device_set_online(CARD_WDEV(card));
4927 rc = ccw_device_set_online(CARD_DDEV(card));
4931 if (rc == -ERESTARTSYS) {
4932 QETH_DBF_TEXT(SETUP, 2, "break1");
4935 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4941 qeth_determine_capabilities(card);
4942 qeth_init_tokens(card);
4943 qeth_init_func_level(card);
4944 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
4945 if (rc == -ERESTARTSYS) {
4946 QETH_DBF_TEXT(SETUP, 2, "break2");
4949 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4955 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
4956 if (rc == -ERESTARTSYS) {
4957 QETH_DBF_TEXT(SETUP, 2, "break3");
4960 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
4966 card->read_or_write_problem = 0;
4967 rc = qeth_mpc_initialize(card);
4969 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4973 card->options.ipa4.supported_funcs = 0;
4974 card->options.adp.supported_funcs = 0;
4975 card->options.sbp.supported_funcs = 0;
4976 card->info.diagass_support = 0;
4977 qeth_query_ipassists(card, QETH_PROT_IPV4);
4978 if (qeth_is_supported(card, IPA_SETADAPTERPARMS))
4979 qeth_query_setadapterparms(card);
4980 if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST))
4981 qeth_query_setdiagass(card);
4984 dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
4985 "an error on the device\n");
4986 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
4987 dev_name(&card->gdev->dev), rc);
4990 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
4992 static inline int qeth_create_skb_frag(struct qeth_qdio_buffer *qethbuffer,
4993 struct qdio_buffer_element *element,
4994 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
4996 struct page *page = virt_to_page(element->addr);
4997 if (*pskb == NULL) {
4998 if (qethbuffer->rx_skb) {
4999 /* only if qeth_card.options.cq == QETH_CQ_ENABLED */
5000 *pskb = qethbuffer->rx_skb;
5001 qethbuffer->rx_skb = NULL;
5003 *pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
5008 skb_reserve(*pskb, ETH_HLEN);
5009 if (data_len <= QETH_RX_PULL_LEN) {
5010 memcpy(skb_put(*pskb, data_len), element->addr + offset,
5014 memcpy(skb_put(*pskb, QETH_RX_PULL_LEN),
5015 element->addr + offset, QETH_RX_PULL_LEN);
5016 skb_fill_page_desc(*pskb, *pfrag, page,
5017 offset + QETH_RX_PULL_LEN,
5018 data_len - QETH_RX_PULL_LEN);
5019 (*pskb)->data_len += data_len - QETH_RX_PULL_LEN;
5020 (*pskb)->len += data_len - QETH_RX_PULL_LEN;
5021 (*pskb)->truesize += data_len - QETH_RX_PULL_LEN;
5026 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
5027 (*pskb)->data_len += data_len;
5028 (*pskb)->len += data_len;
5029 (*pskb)->truesize += data_len;
5037 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
5038 struct qeth_qdio_buffer *qethbuffer,
5039 struct qdio_buffer_element **__element, int *__offset,
5040 struct qeth_hdr **hdr)
5042 struct qdio_buffer_element *element = *__element;
5043 struct qdio_buffer *buffer = qethbuffer->buffer;
5044 int offset = *__offset;
5045 struct sk_buff *skb = NULL;
5053 /* qeth_hdr must not cross element boundaries */
5054 if (element->length < offset + sizeof(struct qeth_hdr)) {
5055 if (qeth_is_last_sbale(element))
5059 if (element->length < sizeof(struct qeth_hdr))
5062 *hdr = element->addr + offset;
5064 offset += sizeof(struct qeth_hdr);
5065 switch ((*hdr)->hdr.l2.id) {
5066 case QETH_HEADER_TYPE_LAYER2:
5067 skb_len = (*hdr)->hdr.l2.pkt_length;
5069 case QETH_HEADER_TYPE_LAYER3:
5070 skb_len = (*hdr)->hdr.l3.length;
5071 headroom = ETH_HLEN;
5073 case QETH_HEADER_TYPE_OSN:
5074 skb_len = (*hdr)->hdr.osn.pdu_length;
5075 headroom = sizeof(struct qeth_hdr);
5084 if (((skb_len >= card->options.rx_sg_cb) &&
5085 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
5086 (!atomic_read(&card->force_alloc_skb))) ||
5087 (card->options.cq == QETH_CQ_ENABLED)) {
5090 skb = dev_alloc_skb(skb_len + headroom);
5094 skb_reserve(skb, headroom);
5097 data_ptr = element->addr + offset;
5099 data_len = min(skb_len, (int)(element->length - offset));
5102 if (qeth_create_skb_frag(qethbuffer, element,
5103 &skb, offset, &frag, data_len))
5106 memcpy(skb_put(skb, data_len), data_ptr,
5110 skb_len -= data_len;
5112 if (qeth_is_last_sbale(element)) {
5113 QETH_CARD_TEXT(card, 4, "unexeob");
5114 QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
5115 dev_kfree_skb_any(skb);
5116 card->stats.rx_errors++;
5121 data_ptr = element->addr;
5126 *__element = element;
5128 if (use_rx_sg && card->options.performance_stats) {
5129 card->perf_stats.sg_skbs_rx++;
5130 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
5134 if (net_ratelimit()) {
5135 QETH_CARD_TEXT(card, 2, "noskbmem");
5137 card->stats.rx_dropped++;
5140 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
5142 static void qeth_unregister_dbf_views(void)
5145 for (x = 0; x < QETH_DBF_INFOS; x++) {
5146 debug_unregister(qeth_dbf[x].id);
5147 qeth_dbf[x].id = NULL;
5151 void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
5153 char dbf_txt_buf[32];
5156 if (!debug_level_enabled(id, level))
5158 va_start(args, fmt);
5159 vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
5161 debug_text_event(id, level, dbf_txt_buf);
5163 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
5165 static int qeth_register_dbf_views(void)
5170 for (x = 0; x < QETH_DBF_INFOS; x++) {
5171 /* register the areas */
5172 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
5176 if (qeth_dbf[x].id == NULL) {
5177 qeth_unregister_dbf_views();
5181 /* register a view */
5182 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
5184 qeth_unregister_dbf_views();
5188 /* set a passing level */
5189 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
5195 int qeth_core_load_discipline(struct qeth_card *card,
5196 enum qeth_discipline_id discipline)
5199 mutex_lock(&qeth_mod_mutex);
5200 switch (discipline) {
5201 case QETH_DISCIPLINE_LAYER3:
5202 card->discipline = try_then_request_module(
5203 symbol_get(qeth_l3_discipline), "qeth_l3");
5205 case QETH_DISCIPLINE_LAYER2:
5206 card->discipline = try_then_request_module(
5207 symbol_get(qeth_l2_discipline), "qeth_l2");
5210 if (!card->discipline) {
5211 dev_err(&card->gdev->dev, "There is no kernel module to "
5212 "support discipline %d\n", discipline);
5215 mutex_unlock(&qeth_mod_mutex);
5219 void qeth_core_free_discipline(struct qeth_card *card)
5221 if (card->options.layer2)
5222 symbol_put(qeth_l2_discipline);
5224 symbol_put(qeth_l3_discipline);
5225 card->discipline = NULL;
5228 static const struct device_type qeth_generic_devtype = {
5229 .name = "qeth_generic",
5230 .groups = qeth_generic_attr_groups,
5232 static const struct device_type qeth_osn_devtype = {
5234 .groups = qeth_osn_attr_groups,
5237 #define DBF_NAME_LEN 20
5239 struct qeth_dbf_entry {
5240 char dbf_name[DBF_NAME_LEN];
5241 debug_info_t *dbf_info;
5242 struct list_head dbf_list;
5245 static LIST_HEAD(qeth_dbf_list);
5246 static DEFINE_MUTEX(qeth_dbf_list_mutex);
5248 static debug_info_t *qeth_get_dbf_entry(char *name)
5250 struct qeth_dbf_entry *entry;
5251 debug_info_t *rc = NULL;
5253 mutex_lock(&qeth_dbf_list_mutex);
5254 list_for_each_entry(entry, &qeth_dbf_list, dbf_list) {
5255 if (strcmp(entry->dbf_name, name) == 0) {
5256 rc = entry->dbf_info;
5260 mutex_unlock(&qeth_dbf_list_mutex);
5264 static int qeth_add_dbf_entry(struct qeth_card *card, char *name)
5266 struct qeth_dbf_entry *new_entry;
5268 card->debug = debug_register(name, 2, 1, 8);
5270 QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
5273 if (debug_register_view(card->debug, &debug_hex_ascii_view))
5275 new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL);
5278 strncpy(new_entry->dbf_name, name, DBF_NAME_LEN);
5279 new_entry->dbf_info = card->debug;
5280 mutex_lock(&qeth_dbf_list_mutex);
5281 list_add(&new_entry->dbf_list, &qeth_dbf_list);
5282 mutex_unlock(&qeth_dbf_list_mutex);
5287 debug_unregister(card->debug);
5292 static void qeth_clear_dbf_list(void)
5294 struct qeth_dbf_entry *entry, *tmp;
5296 mutex_lock(&qeth_dbf_list_mutex);
5297 list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) {
5298 list_del(&entry->dbf_list);
5299 debug_unregister(entry->dbf_info);
5302 mutex_unlock(&qeth_dbf_list_mutex);
5305 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
5307 struct qeth_card *card;
5310 unsigned long flags;
5311 char dbf_name[DBF_NAME_LEN];
5313 QETH_DBF_TEXT(SETUP, 2, "probedev");
5316 if (!get_device(dev))
5319 QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
5321 card = qeth_alloc_card();
5323 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
5328 snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
5329 dev_name(&gdev->dev));
5330 card->debug = qeth_get_dbf_entry(dbf_name);
5332 rc = qeth_add_dbf_entry(card, dbf_name);
5337 card->read.ccwdev = gdev->cdev[0];
5338 card->write.ccwdev = gdev->cdev[1];
5339 card->data.ccwdev = gdev->cdev[2];
5340 dev_set_drvdata(&gdev->dev, card);
5342 gdev->cdev[0]->handler = qeth_irq;
5343 gdev->cdev[1]->handler = qeth_irq;
5344 gdev->cdev[2]->handler = qeth_irq;
5346 rc = qeth_determine_card_type(card);
5348 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
5351 rc = qeth_setup_card(card);
5353 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
5357 if (card->info.type == QETH_CARD_TYPE_OSN)
5358 gdev->dev.type = &qeth_osn_devtype;
5360 gdev->dev.type = &qeth_generic_devtype;
5362 switch (card->info.type) {
5363 case QETH_CARD_TYPE_OSN:
5364 case QETH_CARD_TYPE_OSM:
5365 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
5368 rc = card->discipline->setup(card->gdev);
5371 case QETH_CARD_TYPE_OSD:
5372 case QETH_CARD_TYPE_OSX:
5377 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5378 list_add_tail(&card->list, &qeth_core_card_list.list);
5379 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5381 qeth_determine_capabilities(card);
5385 qeth_core_free_discipline(card);
5387 qeth_core_free_card(card);
5393 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
5395 unsigned long flags;
5396 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5398 QETH_DBF_TEXT(SETUP, 2, "removedv");
5400 if (card->discipline) {
5401 card->discipline->remove(gdev);
5402 qeth_core_free_discipline(card);
5405 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5406 list_del(&card->list);
5407 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5408 qeth_core_free_card(card);
5409 dev_set_drvdata(&gdev->dev, NULL);
5410 put_device(&gdev->dev);
5414 static int qeth_core_set_online(struct ccwgroup_device *gdev)
5416 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5420 if (!card->discipline) {
5421 if (card->info.type == QETH_CARD_TYPE_IQD)
5422 def_discipline = QETH_DISCIPLINE_LAYER3;
5424 def_discipline = QETH_DISCIPLINE_LAYER2;
5425 rc = qeth_core_load_discipline(card, def_discipline);
5428 rc = card->discipline->setup(card->gdev);
5432 rc = card->discipline->set_online(gdev);
5437 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
5439 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5440 return card->discipline->set_offline(gdev);
5443 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
5445 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5446 if (card->discipline && card->discipline->shutdown)
5447 card->discipline->shutdown(gdev);
5450 static int qeth_core_prepare(struct ccwgroup_device *gdev)
5452 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5453 if (card->discipline && card->discipline->prepare)
5454 return card->discipline->prepare(gdev);
5458 static void qeth_core_complete(struct ccwgroup_device *gdev)
5460 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5461 if (card->discipline && card->discipline->complete)
5462 card->discipline->complete(gdev);
5465 static int qeth_core_freeze(struct ccwgroup_device *gdev)
5467 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5468 if (card->discipline && card->discipline->freeze)
5469 return card->discipline->freeze(gdev);
5473 static int qeth_core_thaw(struct ccwgroup_device *gdev)
5475 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5476 if (card->discipline && card->discipline->thaw)
5477 return card->discipline->thaw(gdev);
5481 static int qeth_core_restore(struct ccwgroup_device *gdev)
5483 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5484 if (card->discipline && card->discipline->restore)
5485 return card->discipline->restore(gdev);
5489 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
5491 .owner = THIS_MODULE,
5494 .setup = qeth_core_probe_device,
5495 .remove = qeth_core_remove_device,
5496 .set_online = qeth_core_set_online,
5497 .set_offline = qeth_core_set_offline,
5498 .shutdown = qeth_core_shutdown,
5499 .prepare = qeth_core_prepare,
5500 .complete = qeth_core_complete,
5501 .freeze = qeth_core_freeze,
5502 .thaw = qeth_core_thaw,
5503 .restore = qeth_core_restore,
5506 static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv,
5507 const char *buf, size_t count)
5511 err = ccwgroup_create_dev(qeth_core_root_dev,
5512 &qeth_core_ccwgroup_driver, 3, buf);
5514 return err ? err : count;
5516 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
5518 static struct attribute *qeth_drv_attrs[] = {
5519 &driver_attr_group.attr,
5522 static struct attribute_group qeth_drv_attr_group = {
5523 .attrs = qeth_drv_attrs,
5525 static const struct attribute_group *qeth_drv_attr_groups[] = {
5526 &qeth_drv_attr_group,
5531 const char str[ETH_GSTRING_LEN];
5532 } qeth_ethtool_stats_keys[] = {
5537 {"tx skbs no packing"},
5538 {"tx buffers no packing"},
5539 {"tx skbs packing"},
5540 {"tx buffers packing"},
5543 /* 10 */{"rx sg skbs"},
5545 {"rx sg page allocs"},
5546 {"tx large kbytes"},
5548 {"tx pk state ch n->p"},
5549 {"tx pk state ch p->n"},
5550 {"tx pk watermark low"},
5551 {"tx pk watermark high"},
5552 {"queue 0 buffer usage"},
5553 /* 20 */{"queue 1 buffer usage"},
5554 {"queue 2 buffer usage"},
5555 {"queue 3 buffer usage"},
5558 {"rx do_QDIO time"},
5559 {"rx do_QDIO count"},
5560 {"tx handler time"},
5561 {"tx handler count"},
5563 /* 30 */{"tx count"},
5564 {"tx do_QDIO time"},
5565 {"tx do_QDIO count"},
5568 {"cq handler count"},
5572 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
5574 switch (stringset) {
5576 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
5581 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
5583 void qeth_core_get_ethtool_stats(struct net_device *dev,
5584 struct ethtool_stats *stats, u64 *data)
5586 struct qeth_card *card = dev->ml_priv;
5587 data[0] = card->stats.rx_packets -
5588 card->perf_stats.initial_rx_packets;
5589 data[1] = card->perf_stats.bufs_rec;
5590 data[2] = card->stats.tx_packets -
5591 card->perf_stats.initial_tx_packets;
5592 data[3] = card->perf_stats.bufs_sent;
5593 data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
5594 - card->perf_stats.skbs_sent_pack;
5595 data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
5596 data[6] = card->perf_stats.skbs_sent_pack;
5597 data[7] = card->perf_stats.bufs_sent_pack;
5598 data[8] = card->perf_stats.sg_skbs_sent;
5599 data[9] = card->perf_stats.sg_frags_sent;
5600 data[10] = card->perf_stats.sg_skbs_rx;
5601 data[11] = card->perf_stats.sg_frags_rx;
5602 data[12] = card->perf_stats.sg_alloc_page_rx;
5603 data[13] = (card->perf_stats.large_send_bytes >> 10);
5604 data[14] = card->perf_stats.large_send_cnt;
5605 data[15] = card->perf_stats.sc_dp_p;
5606 data[16] = card->perf_stats.sc_p_dp;
5607 data[17] = QETH_LOW_WATERMARK_PACK;
5608 data[18] = QETH_HIGH_WATERMARK_PACK;
5609 data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
5610 data[20] = (card->qdio.no_out_queues > 1) ?
5611 atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
5612 data[21] = (card->qdio.no_out_queues > 2) ?
5613 atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
5614 data[22] = (card->qdio.no_out_queues > 3) ?
5615 atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
5616 data[23] = card->perf_stats.inbound_time;
5617 data[24] = card->perf_stats.inbound_cnt;
5618 data[25] = card->perf_stats.inbound_do_qdio_time;
5619 data[26] = card->perf_stats.inbound_do_qdio_cnt;
5620 data[27] = card->perf_stats.outbound_handler_time;
5621 data[28] = card->perf_stats.outbound_handler_cnt;
5622 data[29] = card->perf_stats.outbound_time;
5623 data[30] = card->perf_stats.outbound_cnt;
5624 data[31] = card->perf_stats.outbound_do_qdio_time;
5625 data[32] = card->perf_stats.outbound_do_qdio_cnt;
5626 data[33] = card->perf_stats.tx_csum;
5627 data[34] = card->perf_stats.tx_lin;
5628 data[35] = card->perf_stats.cq_cnt;
5629 data[36] = card->perf_stats.cq_time;
5631 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
5633 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
5635 switch (stringset) {
5637 memcpy(data, &qeth_ethtool_stats_keys,
5638 sizeof(qeth_ethtool_stats_keys));
5645 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
5647 void qeth_core_get_drvinfo(struct net_device *dev,
5648 struct ethtool_drvinfo *info)
5650 struct qeth_card *card = dev->ml_priv;
5652 strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
5653 sizeof(info->driver));
5654 strlcpy(info->version, "1.0", sizeof(info->version));
5655 strlcpy(info->fw_version, card->info.mcl_level,
5656 sizeof(info->fw_version));
5657 snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
5658 CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
5660 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
5662 /* Helper function to fill 'advertizing' and 'supported' which are the same. */
5663 /* Autoneg and full-duplex are supported and advertized uncondionally. */
5664 /* Always advertize and support all speeds up to specified, and only one */
5665 /* specified port type. */
5666 static void qeth_set_ecmd_adv_sup(struct ethtool_cmd *ecmd,
5667 int maxspeed, int porttype)
5669 int port_sup, port_adv, spd_sup, spd_adv;
5673 port_sup = SUPPORTED_TP;
5674 port_adv = ADVERTISED_TP;
5677 port_sup = SUPPORTED_FIBRE;
5678 port_adv = ADVERTISED_FIBRE;
5681 port_sup = SUPPORTED_TP;
5682 port_adv = ADVERTISED_TP;
5686 /* "Fallthrough" case'es ordered from high to low result in setting */
5687 /* flags cumulatively, starting from the specified speed and down to */
5688 /* the lowest possible. */
5693 spd_sup |= SUPPORTED_10000baseT_Full;
5694 spd_adv |= ADVERTISED_10000baseT_Full;
5696 spd_sup |= SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
5697 spd_adv |= ADVERTISED_1000baseT_Half |
5698 ADVERTISED_1000baseT_Full;
5700 spd_sup |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
5701 spd_adv |= ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
5703 spd_sup |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
5704 spd_adv |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
5707 spd_sup = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
5708 spd_adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
5711 ecmd->advertising = ADVERTISED_Autoneg | port_adv | spd_adv;
5712 ecmd->supported = SUPPORTED_Autoneg | port_sup | spd_sup;
5715 int qeth_core_ethtool_get_settings(struct net_device *netdev,
5716 struct ethtool_cmd *ecmd)
5718 struct qeth_card *card = netdev->ml_priv;
5719 enum qeth_link_types link_type;
5720 struct carrier_info carrier_info;
5723 if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
5724 link_type = QETH_LINK_TYPE_10GBIT_ETH;
5726 link_type = card->info.link_type;
5728 ecmd->transceiver = XCVR_INTERNAL;
5729 ecmd->duplex = DUPLEX_FULL;
5730 ecmd->autoneg = AUTONEG_ENABLE;
5732 switch (link_type) {
5733 case QETH_LINK_TYPE_FAST_ETH:
5734 case QETH_LINK_TYPE_LANE_ETH100:
5735 qeth_set_ecmd_adv_sup(ecmd, SPEED_100, PORT_TP);
5737 ecmd->port = PORT_TP;
5740 case QETH_LINK_TYPE_GBIT_ETH:
5741 case QETH_LINK_TYPE_LANE_ETH1000:
5742 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
5744 ecmd->port = PORT_FIBRE;
5747 case QETH_LINK_TYPE_10GBIT_ETH:
5748 qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
5749 speed = SPEED_10000;
5750 ecmd->port = PORT_FIBRE;
5754 qeth_set_ecmd_adv_sup(ecmd, SPEED_10, PORT_TP);
5756 ecmd->port = PORT_TP;
5758 ethtool_cmd_speed_set(ecmd, speed);
5760 /* Check if we can obtain more accurate information. */
5761 /* If QUERY_CARD_INFO command is not supported or fails, */
5762 /* just return the heuristics that was filled above. */
5763 if (qeth_query_card_info(card, &carrier_info) != 0)
5767 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
5768 carrier_info.card_type,
5769 carrier_info.port_mode,
5770 carrier_info.port_speed);
5772 /* Update attributes for which we've obtained more authoritative */
5773 /* information, leave the rest the way they where filled above. */
5774 switch (carrier_info.card_type) {
5775 case CARD_INFO_TYPE_1G_COPPER_A:
5776 case CARD_INFO_TYPE_1G_COPPER_B:
5777 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_TP);
5778 ecmd->port = PORT_TP;
5780 case CARD_INFO_TYPE_1G_FIBRE_A:
5781 case CARD_INFO_TYPE_1G_FIBRE_B:
5782 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
5783 ecmd->port = PORT_FIBRE;
5785 case CARD_INFO_TYPE_10G_FIBRE_A:
5786 case CARD_INFO_TYPE_10G_FIBRE_B:
5787 qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
5788 ecmd->port = PORT_FIBRE;
5792 switch (carrier_info.port_mode) {
5793 case CARD_INFO_PORTM_FULLDUPLEX:
5794 ecmd->duplex = DUPLEX_FULL;
5796 case CARD_INFO_PORTM_HALFDUPLEX:
5797 ecmd->duplex = DUPLEX_HALF;
5801 switch (carrier_info.port_speed) {
5802 case CARD_INFO_PORTS_10M:
5805 case CARD_INFO_PORTS_100M:
5808 case CARD_INFO_PORTS_1G:
5811 case CARD_INFO_PORTS_10G:
5812 speed = SPEED_10000;
5815 ethtool_cmd_speed_set(ecmd, speed);
5819 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
5821 static int __init qeth_core_init(void)
5825 pr_info("loading core functions\n");
5826 INIT_LIST_HEAD(&qeth_core_card_list.list);
5827 INIT_LIST_HEAD(&qeth_dbf_list);
5828 rwlock_init(&qeth_core_card_list.rwlock);
5829 mutex_init(&qeth_mod_mutex);
5831 qeth_wq = create_singlethread_workqueue("qeth_wq");
5833 rc = qeth_register_dbf_views();
5836 qeth_core_root_dev = root_device_register("qeth");
5837 rc = PTR_ERR_OR_ZERO(qeth_core_root_dev);
5840 qeth_core_header_cache = kmem_cache_create("qeth_hdr",
5841 sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
5842 if (!qeth_core_header_cache) {
5846 qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf",
5847 sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL);
5848 if (!qeth_qdio_outbuf_cache) {
5852 rc = ccw_driver_register(&qeth_ccw_driver);
5855 qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups;
5856 rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
5863 ccw_driver_unregister(&qeth_ccw_driver);
5865 kmem_cache_destroy(qeth_qdio_outbuf_cache);
5867 kmem_cache_destroy(qeth_core_header_cache);
5869 root_device_unregister(qeth_core_root_dev);
5871 qeth_unregister_dbf_views();
5873 pr_err("Initializing the qeth device driver failed\n");
5877 static void __exit qeth_core_exit(void)
5879 qeth_clear_dbf_list();
5880 destroy_workqueue(qeth_wq);
5881 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
5882 ccw_driver_unregister(&qeth_ccw_driver);
5883 kmem_cache_destroy(qeth_qdio_outbuf_cache);
5884 kmem_cache_destroy(qeth_core_header_cache);
5885 root_device_unregister(qeth_core_root_dev);
5886 qeth_unregister_dbf_views();
5887 pr_info("core functions removed\n");
5890 module_init(qeth_core_init);
5891 module_exit(qeth_core_exit);
5892 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
5893 MODULE_DESCRIPTION("qeth core functions");
5894 MODULE_LICENSE("GPL");