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 <linux/if_vlan.h>
23 #include <linux/netdevice.h>
24 #include <linux/netdev_features.h>
25 #include <linux/skbuff.h>
26 #include <linux/vmalloc.h>
28 #include <net/iucv/af_iucv.h>
29 #include <net/dsfield.h>
31 #include <asm/ebcdic.h>
32 #include <asm/chpid.h>
34 #include <asm/sysinfo.h>
35 #include <asm/compat.h>
38 #include <asm/ccwdev.h>
40 #include "qeth_core.h"
42 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
43 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
45 [QETH_DBF_SETUP] = {"qeth_setup",
46 8, 1, 8, 5, &debug_hex_ascii_view, NULL},
47 [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
48 &debug_sprintf_view, NULL},
49 [QETH_DBF_CTRL] = {"qeth_control",
50 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
52 EXPORT_SYMBOL_GPL(qeth_dbf);
54 struct qeth_card_list_struct qeth_core_card_list;
55 EXPORT_SYMBOL_GPL(qeth_core_card_list);
56 struct kmem_cache *qeth_core_header_cache;
57 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
58 static struct kmem_cache *qeth_qdio_outbuf_cache;
60 static struct device *qeth_core_root_dev;
61 static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY;
62 static struct lock_class_key qdio_out_skb_queue_key;
63 static struct mutex qeth_mod_mutex;
65 static void qeth_send_control_data_cb(struct qeth_channel *,
66 struct qeth_cmd_buffer *);
67 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
68 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
69 static void qeth_free_buffer_pool(struct qeth_card *);
70 static int qeth_qdio_establish(struct qeth_card *);
71 static void qeth_free_qdio_buffers(struct qeth_card *);
72 static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
73 struct qeth_qdio_out_buffer *buf,
74 enum iucv_tx_notify notification);
75 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
76 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
77 struct qeth_qdio_out_buffer *buf,
78 enum qeth_qdio_buffer_states newbufstate);
79 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
81 struct workqueue_struct *qeth_wq;
82 EXPORT_SYMBOL_GPL(qeth_wq);
84 int qeth_card_hw_is_reachable(struct qeth_card *card)
86 return (card->state == CARD_STATE_SOFTSETUP) ||
87 (card->state == CARD_STATE_UP);
89 EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable);
91 static void qeth_close_dev_handler(struct work_struct *work)
93 struct qeth_card *card;
95 card = container_of(work, struct qeth_card, close_dev_work);
96 QETH_CARD_TEXT(card, 2, "cldevhdl");
100 ccwgroup_set_offline(card->gdev);
103 void qeth_close_dev(struct qeth_card *card)
105 QETH_CARD_TEXT(card, 2, "cldevsubm");
106 queue_work(qeth_wq, &card->close_dev_work);
108 EXPORT_SYMBOL_GPL(qeth_close_dev);
110 static const char *qeth_get_cardname(struct qeth_card *card)
112 if (card->info.guestlan) {
113 switch (card->info.type) {
114 case QETH_CARD_TYPE_OSD:
115 return " Virtual NIC QDIO";
116 case QETH_CARD_TYPE_IQD:
117 return " Virtual NIC Hiper";
118 case QETH_CARD_TYPE_OSM:
119 return " Virtual NIC QDIO - OSM";
120 case QETH_CARD_TYPE_OSX:
121 return " Virtual NIC QDIO - OSX";
126 switch (card->info.type) {
127 case QETH_CARD_TYPE_OSD:
128 return " OSD Express";
129 case QETH_CARD_TYPE_IQD:
130 return " HiperSockets";
131 case QETH_CARD_TYPE_OSN:
133 case QETH_CARD_TYPE_OSM:
135 case QETH_CARD_TYPE_OSX:
144 /* max length to be returned: 14 */
145 const char *qeth_get_cardname_short(struct qeth_card *card)
147 if (card->info.guestlan) {
148 switch (card->info.type) {
149 case QETH_CARD_TYPE_OSD:
150 return "Virt.NIC QDIO";
151 case QETH_CARD_TYPE_IQD:
152 return "Virt.NIC Hiper";
153 case QETH_CARD_TYPE_OSM:
154 return "Virt.NIC OSM";
155 case QETH_CARD_TYPE_OSX:
156 return "Virt.NIC OSX";
161 switch (card->info.type) {
162 case QETH_CARD_TYPE_OSD:
163 switch (card->info.link_type) {
164 case QETH_LINK_TYPE_FAST_ETH:
166 case QETH_LINK_TYPE_HSTR:
168 case QETH_LINK_TYPE_GBIT_ETH:
170 case QETH_LINK_TYPE_10GBIT_ETH:
172 case QETH_LINK_TYPE_LANE_ETH100:
173 return "OSD_FE_LANE";
174 case QETH_LINK_TYPE_LANE_TR:
175 return "OSD_TR_LANE";
176 case QETH_LINK_TYPE_LANE_ETH1000:
177 return "OSD_GbE_LANE";
178 case QETH_LINK_TYPE_LANE:
179 return "OSD_ATM_LANE";
181 return "OSD_Express";
183 case QETH_CARD_TYPE_IQD:
184 return "HiperSockets";
185 case QETH_CARD_TYPE_OSN:
187 case QETH_CARD_TYPE_OSM:
189 case QETH_CARD_TYPE_OSX:
198 void qeth_set_recovery_task(struct qeth_card *card)
200 card->recovery_task = current;
202 EXPORT_SYMBOL_GPL(qeth_set_recovery_task);
204 void qeth_clear_recovery_task(struct qeth_card *card)
206 card->recovery_task = NULL;
208 EXPORT_SYMBOL_GPL(qeth_clear_recovery_task);
210 static bool qeth_is_recovery_task(const struct qeth_card *card)
212 return card->recovery_task == current;
215 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
216 int clear_start_mask)
220 spin_lock_irqsave(&card->thread_mask_lock, flags);
221 card->thread_allowed_mask = threads;
222 if (clear_start_mask)
223 card->thread_start_mask &= threads;
224 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
225 wake_up(&card->wait_q);
227 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
229 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
234 spin_lock_irqsave(&card->thread_mask_lock, flags);
235 rc = (card->thread_running_mask & threads);
236 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
239 EXPORT_SYMBOL_GPL(qeth_threads_running);
241 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
243 if (qeth_is_recovery_task(card))
245 return wait_event_interruptible(card->wait_q,
246 qeth_threads_running(card, threads) == 0);
248 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
250 void qeth_clear_working_pool_list(struct qeth_card *card)
252 struct qeth_buffer_pool_entry *pool_entry, *tmp;
254 QETH_CARD_TEXT(card, 5, "clwrklst");
255 list_for_each_entry_safe(pool_entry, tmp,
256 &card->qdio.in_buf_pool.entry_list, list){
257 list_del(&pool_entry->list);
260 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
262 static int qeth_alloc_buffer_pool(struct qeth_card *card)
264 struct qeth_buffer_pool_entry *pool_entry;
268 QETH_CARD_TEXT(card, 5, "alocpool");
269 for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
270 pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL);
272 qeth_free_buffer_pool(card);
275 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
276 ptr = (void *) __get_free_page(GFP_KERNEL);
279 free_page((unsigned long)
280 pool_entry->elements[--j]);
282 qeth_free_buffer_pool(card);
285 pool_entry->elements[j] = ptr;
287 list_add(&pool_entry->init_list,
288 &card->qdio.init_pool.entry_list);
293 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
295 QETH_CARD_TEXT(card, 2, "realcbp");
297 if ((card->state != CARD_STATE_DOWN) &&
298 (card->state != CARD_STATE_RECOVER))
301 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
302 qeth_clear_working_pool_list(card);
303 qeth_free_buffer_pool(card);
304 card->qdio.in_buf_pool.buf_count = bufcnt;
305 card->qdio.init_pool.buf_count = bufcnt;
306 return qeth_alloc_buffer_pool(card);
308 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
310 static void qeth_free_qdio_queue(struct qeth_qdio_q *q)
315 qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
319 static struct qeth_qdio_q *qeth_alloc_qdio_queue(void)
321 struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
327 if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
332 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
333 q->bufs[i].buffer = q->qdio_bufs[i];
335 QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *));
339 static int qeth_cq_init(struct qeth_card *card)
343 if (card->options.cq == QETH_CQ_ENABLED) {
344 QETH_DBF_TEXT(SETUP, 2, "cqinit");
345 qdio_reset_buffers(card->qdio.c_q->qdio_bufs,
346 QDIO_MAX_BUFFERS_PER_Q);
347 card->qdio.c_q->next_buf_to_init = 127;
348 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
349 card->qdio.no_in_queues - 1, 0,
352 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
361 static int qeth_alloc_cq(struct qeth_card *card)
365 if (card->options.cq == QETH_CQ_ENABLED) {
367 struct qdio_outbuf_state *outbuf_states;
369 QETH_DBF_TEXT(SETUP, 2, "cqon");
370 card->qdio.c_q = qeth_alloc_qdio_queue();
371 if (!card->qdio.c_q) {
375 card->qdio.no_in_queues = 2;
376 card->qdio.out_bufstates =
377 kzalloc(card->qdio.no_out_queues *
378 QDIO_MAX_BUFFERS_PER_Q *
379 sizeof(struct qdio_outbuf_state), GFP_KERNEL);
380 outbuf_states = card->qdio.out_bufstates;
381 if (outbuf_states == NULL) {
385 for (i = 0; i < card->qdio.no_out_queues; ++i) {
386 card->qdio.out_qs[i]->bufstates = outbuf_states;
387 outbuf_states += QDIO_MAX_BUFFERS_PER_Q;
390 QETH_DBF_TEXT(SETUP, 2, "nocq");
391 card->qdio.c_q = NULL;
392 card->qdio.no_in_queues = 1;
394 QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues);
399 qeth_free_qdio_queue(card->qdio.c_q);
400 card->qdio.c_q = NULL;
402 dev_err(&card->gdev->dev, "Failed to create completion queue\n");
406 static void qeth_free_cq(struct qeth_card *card)
408 if (card->qdio.c_q) {
409 --card->qdio.no_in_queues;
410 qeth_free_qdio_queue(card->qdio.c_q);
411 card->qdio.c_q = NULL;
413 kfree(card->qdio.out_bufstates);
414 card->qdio.out_bufstates = NULL;
417 static enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
420 enum iucv_tx_notify n;
424 n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK;
430 n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE :
431 TX_NOTIFY_UNREACHABLE;
434 n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR :
435 TX_NOTIFY_GENERALERROR;
442 static void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, int bidx,
445 if (q->card->options.cq != QETH_CQ_ENABLED)
448 if (q->bufs[bidx]->next_pending != NULL) {
449 struct qeth_qdio_out_buffer *head = q->bufs[bidx];
450 struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending;
453 if (forced_cleanup ||
454 atomic_read(&c->state) ==
455 QETH_QDIO_BUF_HANDLED_DELAYED) {
456 struct qeth_qdio_out_buffer *f = c;
457 QETH_CARD_TEXT(f->q->card, 5, "fp");
458 QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f);
459 /* release here to avoid interleaving between
460 outbound tasklet and inbound tasklet
461 regarding notifications and lifecycle */
462 qeth_release_skbs(c);
465 WARN_ON_ONCE(head->next_pending != f);
466 head->next_pending = c;
467 kmem_cache_free(qeth_qdio_outbuf_cache, f);
475 if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) ==
476 QETH_QDIO_BUF_HANDLED_DELAYED)) {
477 /* for recovery situations */
478 q->bufs[bidx]->aob = q->bufstates[bidx].aob;
479 qeth_init_qdio_out_buf(q, bidx);
480 QETH_CARD_TEXT(q->card, 2, "clprecov");
485 static void qeth_qdio_handle_aob(struct qeth_card *card,
486 unsigned long phys_aob_addr)
489 struct qeth_qdio_out_buffer *buffer;
490 enum iucv_tx_notify notification;
492 aob = (struct qaob *) phys_to_virt(phys_aob_addr);
493 QETH_CARD_TEXT(card, 5, "haob");
494 QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr);
495 buffer = (struct qeth_qdio_out_buffer *) aob->user1;
496 QETH_CARD_TEXT_(card, 5, "%lx", aob->user1);
498 if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED,
499 QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) {
500 notification = TX_NOTIFY_OK;
502 WARN_ON_ONCE(atomic_read(&buffer->state) !=
503 QETH_QDIO_BUF_PENDING);
504 atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ);
505 notification = TX_NOTIFY_DELAYED_OK;
508 if (aob->aorc != 0) {
509 QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc);
510 notification = qeth_compute_cq_notification(aob->aorc, 1);
512 qeth_notify_skbs(buffer->q, buffer, notification);
515 qeth_clear_output_buffer(buffer->q, buffer,
516 QETH_QDIO_BUF_HANDLED_DELAYED);
518 /* from here on: do not touch buffer anymore */
519 qdio_release_aob(aob);
522 static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
524 return card->options.cq == QETH_CQ_ENABLED &&
525 card->qdio.c_q != NULL &&
527 queue == card->qdio.no_in_queues - 1;
530 static int __qeth_issue_next_read(struct qeth_card *card)
533 struct qeth_cmd_buffer *iob;
535 QETH_CARD_TEXT(card, 5, "issnxrd");
536 if (card->read.state != CH_STATE_UP)
538 iob = qeth_get_buffer(&card->read);
540 dev_warn(&card->gdev->dev, "The qeth device driver "
541 "failed to recover an error on the device\n");
542 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
543 "available\n", dev_name(&card->gdev->dev));
546 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
547 QETH_CARD_TEXT(card, 6, "noirqpnd");
548 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
551 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
552 "rc=%i\n", dev_name(&card->gdev->dev), rc);
553 atomic_set(&card->read.irq_pending, 0);
554 card->read_or_write_problem = 1;
555 qeth_schedule_recovery(card);
556 wake_up(&card->wait_q);
561 static int qeth_issue_next_read(struct qeth_card *card)
565 spin_lock_irq(get_ccwdev_lock(CARD_RDEV(card)));
566 ret = __qeth_issue_next_read(card);
567 spin_unlock_irq(get_ccwdev_lock(CARD_RDEV(card)));
572 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
574 struct qeth_reply *reply;
576 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
578 atomic_set(&reply->refcnt, 1);
579 atomic_set(&reply->received, 0);
585 static void qeth_get_reply(struct qeth_reply *reply)
587 WARN_ON(atomic_read(&reply->refcnt) <= 0);
588 atomic_inc(&reply->refcnt);
591 static void qeth_put_reply(struct qeth_reply *reply)
593 WARN_ON(atomic_read(&reply->refcnt) <= 0);
594 if (atomic_dec_and_test(&reply->refcnt))
598 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
599 struct qeth_card *card)
602 int com = cmd->hdr.command;
603 ipa_name = qeth_get_ipa_cmd_name(com);
605 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
607 ipa_name, com, dev_name(&card->gdev->dev),
608 QETH_CARD_IFNAME(card), rc,
609 qeth_get_ipa_msg(rc));
611 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
612 ipa_name, com, dev_name(&card->gdev->dev),
613 QETH_CARD_IFNAME(card));
616 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
617 struct qeth_cmd_buffer *iob)
619 struct qeth_ipa_cmd *cmd = NULL;
621 QETH_CARD_TEXT(card, 5, "chkipad");
622 if (IS_IPA(iob->data)) {
623 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
624 if (IS_IPA_REPLY(cmd)) {
625 if (cmd->hdr.command != IPA_CMD_SETCCID &&
626 cmd->hdr.command != IPA_CMD_DELCCID &&
627 cmd->hdr.command != IPA_CMD_MODCCID &&
628 cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
629 qeth_issue_ipa_msg(cmd,
630 cmd->hdr.return_code, card);
633 switch (cmd->hdr.command) {
634 case IPA_CMD_STOPLAN:
635 if (cmd->hdr.return_code ==
636 IPA_RC_VEPA_TO_VEB_TRANSITION) {
637 dev_err(&card->gdev->dev,
638 "Interface %s is down because the "
639 "adjacent port is no longer in "
640 "reflective relay mode\n",
641 QETH_CARD_IFNAME(card));
642 qeth_close_dev(card);
644 dev_warn(&card->gdev->dev,
645 "The link for interface %s on CHPID"
647 QETH_CARD_IFNAME(card),
649 qeth_issue_ipa_msg(cmd,
650 cmd->hdr.return_code, card);
652 card->lan_online = 0;
653 if (card->dev && netif_carrier_ok(card->dev))
654 netif_carrier_off(card->dev);
656 case IPA_CMD_STARTLAN:
657 dev_info(&card->gdev->dev,
658 "The link for %s on CHPID 0x%X has"
660 QETH_CARD_IFNAME(card),
662 netif_carrier_on(card->dev);
663 card->lan_online = 1;
664 if (card->info.hwtrap)
665 card->info.hwtrap = 2;
666 qeth_schedule_recovery(card);
668 case IPA_CMD_SETBRIDGEPORT_IQD:
669 case IPA_CMD_SETBRIDGEPORT_OSA:
670 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
671 if (card->discipline->control_event_handler
676 case IPA_CMD_MODCCID:
678 case IPA_CMD_REGISTER_LOCAL_ADDR:
679 QETH_CARD_TEXT(card, 3, "irla");
681 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
682 QETH_CARD_TEXT(card, 3, "urla");
685 QETH_DBF_MESSAGE(2, "Received data is IPA "
686 "but not a reply!\n");
694 void qeth_clear_ipacmd_list(struct qeth_card *card)
696 struct qeth_reply *reply, *r;
699 QETH_CARD_TEXT(card, 4, "clipalst");
701 spin_lock_irqsave(&card->lock, flags);
702 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
703 qeth_get_reply(reply);
705 atomic_inc(&reply->received);
706 list_del_init(&reply->list);
707 wake_up(&reply->wait_q);
708 qeth_put_reply(reply);
710 spin_unlock_irqrestore(&card->lock, flags);
711 atomic_set(&card->write.irq_pending, 0);
713 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
715 static int qeth_check_idx_response(struct qeth_card *card,
716 unsigned char *buffer)
721 QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
722 if ((buffer[2] & 0xc0) == 0xc0) {
723 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
724 "with cause code 0x%02x%s\n",
726 ((buffer[4] == 0x22) ?
727 " -- try another portname" : ""));
728 QETH_CARD_TEXT(card, 2, "ckidxres");
729 QETH_CARD_TEXT(card, 2, " idxterm");
730 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
731 if (buffer[4] == 0xf6) {
732 dev_err(&card->gdev->dev,
733 "The qeth device is not configured "
734 "for the OSI layer required by z/VM\n");
742 static struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
744 struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
745 dev_get_drvdata(&cdev->dev))->dev);
749 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
752 struct qeth_card *card;
754 card = CARD_FROM_CDEV(channel->ccwdev);
755 QETH_CARD_TEXT(card, 4, "setupccw");
756 if (channel == &card->read)
757 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
759 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
760 channel->ccw.count = len;
761 channel->ccw.cda = (__u32) __pa(iob);
764 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
768 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
769 index = channel->io_buf_no;
771 if (channel->iob[index].state == BUF_STATE_FREE) {
772 channel->iob[index].state = BUF_STATE_LOCKED;
773 channel->io_buf_no = (channel->io_buf_no + 1) %
775 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
776 return channel->iob + index;
778 index = (index + 1) % QETH_CMD_BUFFER_NO;
779 } while (index != channel->io_buf_no);
784 void qeth_release_buffer(struct qeth_channel *channel,
785 struct qeth_cmd_buffer *iob)
789 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
790 spin_lock_irqsave(&channel->iob_lock, flags);
791 memset(iob->data, 0, QETH_BUFSIZE);
792 iob->state = BUF_STATE_FREE;
793 iob->callback = qeth_send_control_data_cb;
795 spin_unlock_irqrestore(&channel->iob_lock, flags);
796 wake_up(&channel->wait_q);
798 EXPORT_SYMBOL_GPL(qeth_release_buffer);
800 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
802 struct qeth_cmd_buffer *buffer = NULL;
805 spin_lock_irqsave(&channel->iob_lock, flags);
806 buffer = __qeth_get_buffer(channel);
807 spin_unlock_irqrestore(&channel->iob_lock, flags);
811 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
813 struct qeth_cmd_buffer *buffer;
814 wait_event(channel->wait_q,
815 ((buffer = qeth_get_buffer(channel)) != NULL));
818 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
820 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
824 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
825 qeth_release_buffer(channel, &channel->iob[cnt]);
827 channel->io_buf_no = 0;
829 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
831 static void qeth_send_control_data_cb(struct qeth_channel *channel,
832 struct qeth_cmd_buffer *iob)
834 struct qeth_card *card;
835 struct qeth_reply *reply, *r;
836 struct qeth_ipa_cmd *cmd;
841 card = CARD_FROM_CDEV(channel->ccwdev);
842 QETH_CARD_TEXT(card, 4, "sndctlcb");
843 rc = qeth_check_idx_response(card, iob->data);
848 qeth_clear_ipacmd_list(card);
849 qeth_schedule_recovery(card);
855 cmd = qeth_check_ipa_data(card, iob);
856 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
858 /*in case of OSN : check if cmd is set */
859 if (card->info.type == QETH_CARD_TYPE_OSN &&
861 cmd->hdr.command != IPA_CMD_STARTLAN &&
862 card->osn_info.assist_cb != NULL) {
863 card->osn_info.assist_cb(card->dev, cmd);
867 spin_lock_irqsave(&card->lock, flags);
868 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
869 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
870 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
871 qeth_get_reply(reply);
872 list_del_init(&reply->list);
873 spin_unlock_irqrestore(&card->lock, flags);
875 if (reply->callback != NULL) {
877 reply->offset = (__u16)((char *)cmd -
879 keep_reply = reply->callback(card,
883 keep_reply = reply->callback(card,
888 reply->rc = (u16) cmd->hdr.return_code;
892 spin_lock_irqsave(&card->lock, flags);
893 list_add_tail(&reply->list,
894 &card->cmd_waiter_list);
895 spin_unlock_irqrestore(&card->lock, flags);
897 atomic_inc(&reply->received);
898 wake_up(&reply->wait_q);
900 qeth_put_reply(reply);
904 spin_unlock_irqrestore(&card->lock, flags);
906 memcpy(&card->seqno.pdu_hdr_ack,
907 QETH_PDU_HEADER_SEQ_NO(iob->data),
909 qeth_release_buffer(channel, iob);
912 static int qeth_setup_channel(struct qeth_channel *channel)
916 QETH_DBF_TEXT(SETUP, 2, "setupch");
917 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
918 channel->iob[cnt].data =
919 kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
920 if (channel->iob[cnt].data == NULL)
922 channel->iob[cnt].state = BUF_STATE_FREE;
923 channel->iob[cnt].channel = channel;
924 channel->iob[cnt].callback = qeth_send_control_data_cb;
925 channel->iob[cnt].rc = 0;
927 if (cnt < QETH_CMD_BUFFER_NO) {
929 kfree(channel->iob[cnt].data);
933 channel->io_buf_no = 0;
934 atomic_set(&channel->irq_pending, 0);
935 spin_lock_init(&channel->iob_lock);
937 init_waitqueue_head(&channel->wait_q);
941 static int qeth_set_thread_start_bit(struct qeth_card *card,
942 unsigned long thread)
946 spin_lock_irqsave(&card->thread_mask_lock, flags);
947 if (!(card->thread_allowed_mask & thread) ||
948 (card->thread_start_mask & thread)) {
949 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
952 card->thread_start_mask |= thread;
953 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
957 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
961 spin_lock_irqsave(&card->thread_mask_lock, flags);
962 card->thread_start_mask &= ~thread;
963 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
964 wake_up(&card->wait_q);
966 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
968 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
972 spin_lock_irqsave(&card->thread_mask_lock, flags);
973 card->thread_running_mask &= ~thread;
974 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
975 wake_up_all(&card->wait_q);
977 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
979 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
984 spin_lock_irqsave(&card->thread_mask_lock, flags);
985 if (card->thread_start_mask & thread) {
986 if ((card->thread_allowed_mask & thread) &&
987 !(card->thread_running_mask & thread)) {
989 card->thread_start_mask &= ~thread;
990 card->thread_running_mask |= thread;
994 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
998 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
1002 wait_event(card->wait_q,
1003 (rc = __qeth_do_run_thread(card, thread)) >= 0);
1006 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
1008 void qeth_schedule_recovery(struct qeth_card *card)
1010 QETH_CARD_TEXT(card, 2, "startrec");
1011 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1012 schedule_work(&card->kernel_thread_starter);
1014 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
1016 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
1020 struct qeth_card *card;
1022 sense = (char *) irb->ecw;
1023 cstat = irb->scsw.cmd.cstat;
1024 dstat = irb->scsw.cmd.dstat;
1025 card = CARD_FROM_CDEV(cdev);
1027 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
1028 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
1029 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
1030 QETH_CARD_TEXT(card, 2, "CGENCHK");
1031 dev_warn(&cdev->dev, "The qeth device driver "
1032 "failed to recover an error on the device\n");
1033 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
1034 dev_name(&cdev->dev), dstat, cstat);
1035 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
1040 if (dstat & DEV_STAT_UNIT_CHECK) {
1041 if (sense[SENSE_RESETTING_EVENT_BYTE] &
1042 SENSE_RESETTING_EVENT_FLAG) {
1043 QETH_CARD_TEXT(card, 2, "REVIND");
1046 if (sense[SENSE_COMMAND_REJECT_BYTE] &
1047 SENSE_COMMAND_REJECT_FLAG) {
1048 QETH_CARD_TEXT(card, 2, "CMDREJi");
1051 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
1052 QETH_CARD_TEXT(card, 2, "AFFE");
1055 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
1056 QETH_CARD_TEXT(card, 2, "ZEROSEN");
1059 QETH_CARD_TEXT(card, 2, "DGENCHK");
1065 static long __qeth_check_irb_error(struct ccw_device *cdev,
1066 unsigned long intparm, struct irb *irb)
1068 struct qeth_card *card;
1070 card = CARD_FROM_CDEV(cdev);
1072 if (!card || !IS_ERR(irb))
1075 switch (PTR_ERR(irb)) {
1077 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
1078 dev_name(&cdev->dev));
1079 QETH_CARD_TEXT(card, 2, "ckirberr");
1080 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
1083 dev_warn(&cdev->dev, "A hardware operation timed out"
1084 " on the device\n");
1085 QETH_CARD_TEXT(card, 2, "ckirberr");
1086 QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT);
1087 if (intparm == QETH_RCD_PARM) {
1088 if (card->data.ccwdev == cdev) {
1089 card->data.state = CH_STATE_DOWN;
1090 wake_up(&card->wait_q);
1095 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
1096 dev_name(&cdev->dev), PTR_ERR(irb));
1097 QETH_CARD_TEXT(card, 2, "ckirberr");
1098 QETH_CARD_TEXT(card, 2, " rc???");
1100 return PTR_ERR(irb);
1103 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
1108 struct qeth_cmd_buffer *buffer;
1109 struct qeth_channel *channel;
1110 struct qeth_card *card;
1111 struct qeth_cmd_buffer *iob;
1114 if (__qeth_check_irb_error(cdev, intparm, irb))
1116 cstat = irb->scsw.cmd.cstat;
1117 dstat = irb->scsw.cmd.dstat;
1119 card = CARD_FROM_CDEV(cdev);
1123 QETH_CARD_TEXT(card, 5, "irq");
1125 if (card->read.ccwdev == cdev) {
1126 channel = &card->read;
1127 QETH_CARD_TEXT(card, 5, "read");
1128 } else if (card->write.ccwdev == cdev) {
1129 channel = &card->write;
1130 QETH_CARD_TEXT(card, 5, "write");
1132 channel = &card->data;
1133 QETH_CARD_TEXT(card, 5, "data");
1135 atomic_set(&channel->irq_pending, 0);
1137 if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
1138 channel->state = CH_STATE_STOPPED;
1140 if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
1141 channel->state = CH_STATE_HALTED;
1143 /*let's wake up immediately on data channel*/
1144 if ((channel == &card->data) && (intparm != 0) &&
1145 (intparm != QETH_RCD_PARM))
1148 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
1149 QETH_CARD_TEXT(card, 6, "clrchpar");
1150 /* we don't have to handle this further */
1153 if (intparm == QETH_HALT_CHANNEL_PARM) {
1154 QETH_CARD_TEXT(card, 6, "hltchpar");
1155 /* we don't have to handle this further */
1158 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
1159 (dstat & DEV_STAT_UNIT_CHECK) ||
1161 if (irb->esw.esw0.erw.cons) {
1162 dev_warn(&channel->ccwdev->dev,
1163 "The qeth device driver failed to recover "
1164 "an error on the device\n");
1165 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1166 "0x%X dstat 0x%X\n",
1167 dev_name(&channel->ccwdev->dev), cstat, dstat);
1168 print_hex_dump(KERN_WARNING, "qeth: irb ",
1169 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
1170 print_hex_dump(KERN_WARNING, "qeth: sense data ",
1171 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
1173 if (intparm == QETH_RCD_PARM) {
1174 channel->state = CH_STATE_DOWN;
1177 rc = qeth_get_problem(cdev, irb);
1179 card->read_or_write_problem = 1;
1180 qeth_clear_ipacmd_list(card);
1181 qeth_schedule_recovery(card);
1186 if (intparm == QETH_RCD_PARM) {
1187 channel->state = CH_STATE_RCD_DONE;
1191 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
1192 buffer->state = BUF_STATE_PROCESSED;
1194 if (channel == &card->data)
1196 if (channel == &card->read &&
1197 channel->state == CH_STATE_UP)
1198 __qeth_issue_next_read(card);
1201 index = channel->buf_no;
1202 while (iob[index].state == BUF_STATE_PROCESSED) {
1203 if (iob[index].callback != NULL)
1204 iob[index].callback(channel, iob + index);
1206 index = (index + 1) % QETH_CMD_BUFFER_NO;
1208 channel->buf_no = index;
1210 wake_up(&card->wait_q);
1214 static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
1215 struct qeth_qdio_out_buffer *buf,
1216 enum iucv_tx_notify notification)
1218 struct sk_buff *skb;
1220 if (skb_queue_empty(&buf->skb_list))
1222 skb = skb_peek(&buf->skb_list);
1224 QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
1225 QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
1226 if (be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) {
1228 struct iucv_sock *iucv = iucv_sk(skb->sk);
1229 iucv->sk_txnotify(skb, notification);
1232 if (skb_queue_is_last(&buf->skb_list, skb))
1235 skb = skb_queue_next(&buf->skb_list, skb);
1241 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
1243 struct sk_buff *skb;
1244 struct iucv_sock *iucv;
1245 int notify_general_error = 0;
1247 if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
1248 notify_general_error = 1;
1250 /* release may never happen from within CQ tasklet scope */
1251 WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
1253 skb = skb_dequeue(&buf->skb_list);
1255 QETH_CARD_TEXT(buf->q->card, 5, "skbr");
1256 QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb);
1257 if (notify_general_error &&
1258 be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) {
1260 iucv = iucv_sk(skb->sk);
1261 iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR);
1264 refcount_dec(&skb->users);
1265 dev_kfree_skb_any(skb);
1266 skb = skb_dequeue(&buf->skb_list);
1270 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
1271 struct qeth_qdio_out_buffer *buf,
1272 enum qeth_qdio_buffer_states newbufstate)
1276 /* is PCI flag set on buffer? */
1277 if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ)
1278 atomic_dec(&queue->set_pci_flags_count);
1280 if (newbufstate == QETH_QDIO_BUF_EMPTY) {
1281 qeth_release_skbs(buf);
1283 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
1284 if (buf->buffer->element[i].addr && buf->is_header[i])
1285 kmem_cache_free(qeth_core_header_cache,
1286 buf->buffer->element[i].addr);
1287 buf->is_header[i] = 0;
1288 buf->buffer->element[i].length = 0;
1289 buf->buffer->element[i].addr = NULL;
1290 buf->buffer->element[i].eflags = 0;
1291 buf->buffer->element[i].sflags = 0;
1293 buf->buffer->element[15].eflags = 0;
1294 buf->buffer->element[15].sflags = 0;
1295 buf->next_element_to_fill = 0;
1296 atomic_set(&buf->state, newbufstate);
1299 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free)
1303 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
1306 qeth_cleanup_handled_pending(q, j, 1);
1307 qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY);
1309 kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]);
1315 void qeth_clear_qdio_buffers(struct qeth_card *card)
1319 QETH_CARD_TEXT(card, 2, "clearqdbf");
1320 /* clear outbound buffers to free skbs */
1321 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1322 if (card->qdio.out_qs[i]) {
1323 qeth_clear_outq_buffers(card->qdio.out_qs[i], 0);
1327 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
1329 static void qeth_free_buffer_pool(struct qeth_card *card)
1331 struct qeth_buffer_pool_entry *pool_entry, *tmp;
1333 list_for_each_entry_safe(pool_entry, tmp,
1334 &card->qdio.init_pool.entry_list, init_list){
1335 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
1336 free_page((unsigned long)pool_entry->elements[i]);
1337 list_del(&pool_entry->init_list);
1342 static void qeth_clean_channel(struct qeth_channel *channel)
1346 QETH_DBF_TEXT(SETUP, 2, "freech");
1347 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1348 kfree(channel->iob[cnt].data);
1351 static void qeth_set_single_write_queues(struct qeth_card *card)
1353 if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
1354 (card->qdio.no_out_queues == 4))
1355 qeth_free_qdio_buffers(card);
1357 card->qdio.no_out_queues = 1;
1358 if (card->qdio.default_out_queue != 0)
1359 dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
1361 card->qdio.default_out_queue = 0;
1364 static void qeth_set_multiple_write_queues(struct qeth_card *card)
1366 if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
1367 (card->qdio.no_out_queues == 1)) {
1368 qeth_free_qdio_buffers(card);
1369 card->qdio.default_out_queue = 2;
1371 card->qdio.no_out_queues = 4;
1374 static void qeth_update_from_chp_desc(struct qeth_card *card)
1376 struct ccw_device *ccwdev;
1377 struct channel_path_desc *chp_dsc;
1379 QETH_DBF_TEXT(SETUP, 2, "chp_desc");
1381 ccwdev = card->data.ccwdev;
1382 chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
1386 card->info.func_level = 0x4100 + chp_dsc->desc;
1387 if (card->info.type == QETH_CARD_TYPE_IQD)
1390 /* CHPP field bit 6 == 1 -> single queue */
1391 if ((chp_dsc->chpp & 0x02) == 0x02)
1392 qeth_set_single_write_queues(card);
1394 qeth_set_multiple_write_queues(card);
1397 QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
1398 QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
1401 static void qeth_init_qdio_info(struct qeth_card *card)
1403 QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1404 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1406 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1407 if (card->info.type == QETH_CARD_TYPE_IQD)
1408 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
1410 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1411 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1412 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1413 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1416 static void qeth_set_intial_options(struct qeth_card *card)
1418 card->options.route4.type = NO_ROUTER;
1419 card->options.route6.type = NO_ROUTER;
1420 card->options.fake_broadcast = 0;
1421 card->options.performance_stats = 0;
1422 card->options.rx_sg_cb = QETH_RX_SG_CB;
1423 card->options.isolation = ISOLATION_MODE_NONE;
1424 card->options.cq = QETH_CQ_DISABLED;
1427 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1429 unsigned long flags;
1432 spin_lock_irqsave(&card->thread_mask_lock, flags);
1433 QETH_CARD_TEXT_(card, 4, " %02x%02x%02x",
1434 (u8) card->thread_start_mask,
1435 (u8) card->thread_allowed_mask,
1436 (u8) card->thread_running_mask);
1437 rc = (card->thread_start_mask & thread);
1438 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1442 static void qeth_start_kernel_thread(struct work_struct *work)
1444 struct task_struct *ts;
1445 struct qeth_card *card = container_of(work, struct qeth_card,
1446 kernel_thread_starter);
1447 QETH_CARD_TEXT(card , 2, "strthrd");
1449 if (card->read.state != CH_STATE_UP &&
1450 card->write.state != CH_STATE_UP)
1452 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
1453 ts = kthread_run(card->discipline->recover, (void *)card,
1456 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1457 qeth_clear_thread_running_bit(card,
1458 QETH_RECOVER_THREAD);
1463 static void qeth_buffer_reclaim_work(struct work_struct *);
1464 static int qeth_setup_card(struct qeth_card *card)
1467 QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1468 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1470 card->read.state = CH_STATE_DOWN;
1471 card->write.state = CH_STATE_DOWN;
1472 card->data.state = CH_STATE_DOWN;
1473 card->state = CARD_STATE_DOWN;
1474 card->lan_online = 0;
1475 card->read_or_write_problem = 0;
1477 spin_lock_init(&card->vlanlock);
1478 spin_lock_init(&card->mclock);
1479 spin_lock_init(&card->lock);
1480 spin_lock_init(&card->ip_lock);
1481 spin_lock_init(&card->thread_mask_lock);
1482 mutex_init(&card->conf_mutex);
1483 mutex_init(&card->discipline_mutex);
1484 card->thread_start_mask = 0;
1485 card->thread_allowed_mask = 0;
1486 card->thread_running_mask = 0;
1487 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1488 INIT_LIST_HEAD(&card->cmd_waiter_list);
1489 init_waitqueue_head(&card->wait_q);
1490 /* initial options */
1491 qeth_set_intial_options(card);
1492 /* IP address takeover */
1493 INIT_LIST_HEAD(&card->ipato.entries);
1494 card->ipato.enabled = false;
1495 card->ipato.invert4 = false;
1496 card->ipato.invert6 = false;
1497 /* init QDIO stuff */
1498 qeth_init_qdio_info(card);
1499 INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
1500 INIT_WORK(&card->close_dev_work, qeth_close_dev_handler);
1504 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1506 struct qeth_card *card = container_of(slr, struct qeth_card,
1507 qeth_service_level);
1508 if (card->info.mcl_level[0])
1509 seq_printf(m, "qeth: %s firmware level %s\n",
1510 CARD_BUS_ID(card), card->info.mcl_level);
1513 static struct qeth_card *qeth_alloc_card(void)
1515 struct qeth_card *card;
1517 QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1518 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1521 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1522 if (qeth_setup_channel(&card->read))
1524 if (qeth_setup_channel(&card->write))
1526 card->options.layer2 = -1;
1527 card->qeth_service_level.seq_print = qeth_core_sl_print;
1528 register_service_level(&card->qeth_service_level);
1532 qeth_clean_channel(&card->read);
1539 static int qeth_determine_card_type(struct qeth_card *card)
1543 QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1545 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1546 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1547 while (known_devices[i][QETH_DEV_MODEL_IND]) {
1548 if ((CARD_RDEV(card)->id.dev_type ==
1549 known_devices[i][QETH_DEV_TYPE_IND]) &&
1550 (CARD_RDEV(card)->id.dev_model ==
1551 known_devices[i][QETH_DEV_MODEL_IND])) {
1552 card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
1553 card->qdio.no_out_queues =
1554 known_devices[i][QETH_QUEUE_NO_IND];
1555 card->qdio.no_in_queues = 1;
1556 card->info.is_multicast_different =
1557 known_devices[i][QETH_MULTICAST_IND];
1558 qeth_update_from_chp_desc(card);
1563 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1564 dev_err(&card->gdev->dev, "The adapter hardware is of an "
1569 static int qeth_clear_channel(struct qeth_channel *channel)
1571 unsigned long flags;
1572 struct qeth_card *card;
1575 card = CARD_FROM_CDEV(channel->ccwdev);
1576 QETH_CARD_TEXT(card, 3, "clearch");
1577 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1578 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1579 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1583 rc = wait_event_interruptible_timeout(card->wait_q,
1584 channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1585 if (rc == -ERESTARTSYS)
1587 if (channel->state != CH_STATE_STOPPED)
1589 channel->state = CH_STATE_DOWN;
1593 static int qeth_halt_channel(struct qeth_channel *channel)
1595 unsigned long flags;
1596 struct qeth_card *card;
1599 card = CARD_FROM_CDEV(channel->ccwdev);
1600 QETH_CARD_TEXT(card, 3, "haltch");
1601 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1602 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1603 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1607 rc = wait_event_interruptible_timeout(card->wait_q,
1608 channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1609 if (rc == -ERESTARTSYS)
1611 if (channel->state != CH_STATE_HALTED)
1616 static int qeth_halt_channels(struct qeth_card *card)
1618 int rc1 = 0, rc2 = 0, rc3 = 0;
1620 QETH_CARD_TEXT(card, 3, "haltchs");
1621 rc1 = qeth_halt_channel(&card->read);
1622 rc2 = qeth_halt_channel(&card->write);
1623 rc3 = qeth_halt_channel(&card->data);
1631 static int qeth_clear_channels(struct qeth_card *card)
1633 int rc1 = 0, rc2 = 0, rc3 = 0;
1635 QETH_CARD_TEXT(card, 3, "clearchs");
1636 rc1 = qeth_clear_channel(&card->read);
1637 rc2 = qeth_clear_channel(&card->write);
1638 rc3 = qeth_clear_channel(&card->data);
1646 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1650 QETH_CARD_TEXT(card, 3, "clhacrd");
1653 rc = qeth_halt_channels(card);
1656 return qeth_clear_channels(card);
1659 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1663 QETH_CARD_TEXT(card, 3, "qdioclr");
1664 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1665 QETH_QDIO_CLEANING)) {
1666 case QETH_QDIO_ESTABLISHED:
1667 if (card->info.type == QETH_CARD_TYPE_IQD)
1668 rc = qdio_shutdown(CARD_DDEV(card),
1669 QDIO_FLAG_CLEANUP_USING_HALT);
1671 rc = qdio_shutdown(CARD_DDEV(card),
1672 QDIO_FLAG_CLEANUP_USING_CLEAR);
1674 QETH_CARD_TEXT_(card, 3, "1err%d", rc);
1675 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1677 case QETH_QDIO_CLEANING:
1682 rc = qeth_clear_halt_card(card, use_halt);
1684 QETH_CARD_TEXT_(card, 3, "2err%d", rc);
1685 card->state = CARD_STATE_DOWN;
1688 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1690 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1696 struct qeth_channel *channel = &card->data;
1697 unsigned long flags;
1700 * scan for RCD command in extended SenseID data
1702 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1703 if (!ciw || ciw->cmd == 0)
1705 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1709 channel->ccw.cmd_code = ciw->cmd;
1710 channel->ccw.cda = (__u32) __pa(rcd_buf);
1711 channel->ccw.count = ciw->count;
1712 channel->ccw.flags = CCW_FLAG_SLI;
1713 channel->state = CH_STATE_RCD;
1714 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1715 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1716 QETH_RCD_PARM, LPM_ANYPATH, 0,
1718 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1720 wait_event(card->wait_q,
1721 (channel->state == CH_STATE_RCD_DONE ||
1722 channel->state == CH_STATE_DOWN));
1723 if (channel->state == CH_STATE_DOWN)
1726 channel->state = CH_STATE_DOWN;
1732 *length = ciw->count;
1738 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1740 QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1741 card->info.chpid = prcd[30];
1742 card->info.unit_addr2 = prcd[31];
1743 card->info.cula = prcd[63];
1744 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1745 (prcd[0x11] == _ascebc['M']));
1748 /* Determine whether the device requires a specific layer discipline */
1749 static enum qeth_discipline_id qeth_enforce_discipline(struct qeth_card *card)
1751 if (card->info.type == QETH_CARD_TYPE_OSM ||
1752 card->info.type == QETH_CARD_TYPE_OSN) {
1753 QETH_DBF_TEXT(SETUP, 3, "force l2");
1754 return QETH_DISCIPLINE_LAYER2;
1757 /* virtual HiperSocket is L3 only: */
1758 if (card->info.guestlan && card->info.type == QETH_CARD_TYPE_IQD) {
1759 QETH_DBF_TEXT(SETUP, 3, "force l3");
1760 return QETH_DISCIPLINE_LAYER3;
1763 QETH_DBF_TEXT(SETUP, 3, "force no");
1764 return QETH_DISCIPLINE_UNDETERMINED;
1767 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1769 QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1771 if (prcd[74] == 0xF0 && prcd[75] == 0xF0 &&
1772 prcd[76] >= 0xF1 && prcd[76] <= 0xF4) {
1773 card->info.blkt.time_total = 0;
1774 card->info.blkt.inter_packet = 0;
1775 card->info.blkt.inter_packet_jumbo = 0;
1777 card->info.blkt.time_total = 250;
1778 card->info.blkt.inter_packet = 5;
1779 card->info.blkt.inter_packet_jumbo = 15;
1783 static void qeth_init_tokens(struct qeth_card *card)
1785 card->token.issuer_rm_w = 0x00010103UL;
1786 card->token.cm_filter_w = 0x00010108UL;
1787 card->token.cm_connection_w = 0x0001010aUL;
1788 card->token.ulp_filter_w = 0x0001010bUL;
1789 card->token.ulp_connection_w = 0x0001010dUL;
1792 static void qeth_init_func_level(struct qeth_card *card)
1794 switch (card->info.type) {
1795 case QETH_CARD_TYPE_IQD:
1796 card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
1798 case QETH_CARD_TYPE_OSD:
1799 case QETH_CARD_TYPE_OSN:
1800 card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
1807 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1808 void (*idx_reply_cb)(struct qeth_channel *,
1809 struct qeth_cmd_buffer *))
1811 struct qeth_cmd_buffer *iob;
1812 unsigned long flags;
1814 struct qeth_card *card;
1816 QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1817 card = CARD_FROM_CDEV(channel->ccwdev);
1818 iob = qeth_get_buffer(channel);
1821 iob->callback = idx_reply_cb;
1822 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1823 channel->ccw.count = QETH_BUFSIZE;
1824 channel->ccw.cda = (__u32) __pa(iob->data);
1826 wait_event(card->wait_q,
1827 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1828 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1829 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1830 rc = ccw_device_start(channel->ccwdev,
1831 &channel->ccw, (addr_t) iob, 0, 0);
1832 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1835 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1836 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1837 atomic_set(&channel->irq_pending, 0);
1838 wake_up(&card->wait_q);
1841 rc = wait_event_interruptible_timeout(card->wait_q,
1842 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1843 if (rc == -ERESTARTSYS)
1845 if (channel->state != CH_STATE_UP) {
1847 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1848 qeth_clear_cmd_buffers(channel);
1854 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1855 void (*idx_reply_cb)(struct qeth_channel *,
1856 struct qeth_cmd_buffer *))
1858 struct qeth_card *card;
1859 struct qeth_cmd_buffer *iob;
1860 unsigned long flags;
1864 struct ccw_dev_id temp_devid;
1866 card = CARD_FROM_CDEV(channel->ccwdev);
1868 QETH_DBF_TEXT(SETUP, 2, "idxactch");
1870 iob = qeth_get_buffer(channel);
1873 iob->callback = idx_reply_cb;
1874 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1875 channel->ccw.count = IDX_ACTIVATE_SIZE;
1876 channel->ccw.cda = (__u32) __pa(iob->data);
1877 if (channel == &card->write) {
1878 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1879 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1880 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1881 card->seqno.trans_hdr++;
1883 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1884 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1885 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1887 tmp = ((__u8)card->info.portno) | 0x80;
1888 memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1889 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1890 &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1891 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1892 &card->info.func_level, sizeof(__u16));
1893 ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1894 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1895 temp = (card->info.cula << 8) + card->info.unit_addr2;
1896 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1898 wait_event(card->wait_q,
1899 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1900 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1901 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1902 rc = ccw_device_start(channel->ccwdev,
1903 &channel->ccw, (addr_t) iob, 0, 0);
1904 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1907 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1909 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1910 atomic_set(&channel->irq_pending, 0);
1911 wake_up(&card->wait_q);
1914 rc = wait_event_interruptible_timeout(card->wait_q,
1915 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1916 if (rc == -ERESTARTSYS)
1918 if (channel->state != CH_STATE_ACTIVATING) {
1919 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1920 " failed to recover an error on the device\n");
1921 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1922 dev_name(&channel->ccwdev->dev));
1923 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1924 qeth_clear_cmd_buffers(channel);
1927 return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1930 static int qeth_peer_func_level(int level)
1932 if ((level & 0xff) == 8)
1933 return (level & 0xff) + 0x400;
1934 if (((level >> 8) & 3) == 1)
1935 return (level & 0xff) + 0x200;
1939 static void qeth_idx_write_cb(struct qeth_channel *channel,
1940 struct qeth_cmd_buffer *iob)
1942 struct qeth_card *card;
1945 QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1947 if (channel->state == CH_STATE_DOWN) {
1948 channel->state = CH_STATE_ACTIVATING;
1951 card = CARD_FROM_CDEV(channel->ccwdev);
1953 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1954 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
1955 dev_err(&card->write.ccwdev->dev,
1956 "The adapter is used exclusively by another "
1959 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1960 " negative reply\n",
1961 dev_name(&card->write.ccwdev->dev));
1964 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1965 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1966 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1967 "function level mismatch (sent: 0x%x, received: "
1968 "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1969 card->info.func_level, temp);
1972 channel->state = CH_STATE_UP;
1974 qeth_release_buffer(channel, iob);
1977 static void qeth_idx_read_cb(struct qeth_channel *channel,
1978 struct qeth_cmd_buffer *iob)
1980 struct qeth_card *card;
1983 QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1984 if (channel->state == CH_STATE_DOWN) {
1985 channel->state = CH_STATE_ACTIVATING;
1989 card = CARD_FROM_CDEV(channel->ccwdev);
1990 if (qeth_check_idx_response(card, iob->data))
1993 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1994 switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
1995 case QETH_IDX_ACT_ERR_EXCL:
1996 dev_err(&card->write.ccwdev->dev,
1997 "The adapter is used exclusively by another "
2000 case QETH_IDX_ACT_ERR_AUTH:
2001 case QETH_IDX_ACT_ERR_AUTH_USER:
2002 dev_err(&card->read.ccwdev->dev,
2003 "Setting the device online failed because of "
2004 "insufficient authorization\n");
2007 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
2008 " negative reply\n",
2009 dev_name(&card->read.ccwdev->dev));
2011 QETH_CARD_TEXT_(card, 2, "idxread%c",
2012 QETH_IDX_ACT_CAUSE_CODE(iob->data));
2016 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
2017 if (temp != qeth_peer_func_level(card->info.func_level)) {
2018 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
2019 "level mismatch (sent: 0x%x, received: 0x%x)\n",
2020 dev_name(&card->read.ccwdev->dev),
2021 card->info.func_level, temp);
2024 memcpy(&card->token.issuer_rm_r,
2025 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
2026 QETH_MPC_TOKEN_LENGTH);
2027 memcpy(&card->info.mcl_level[0],
2028 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
2029 channel->state = CH_STATE_UP;
2031 qeth_release_buffer(channel, iob);
2034 void qeth_prepare_control_data(struct qeth_card *card, int len,
2035 struct qeth_cmd_buffer *iob)
2037 qeth_setup_ccw(&card->write, iob->data, len);
2038 iob->callback = qeth_release_buffer;
2040 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
2041 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
2042 card->seqno.trans_hdr++;
2043 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
2044 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
2045 card->seqno.pdu_hdr++;
2046 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
2047 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
2048 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
2050 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
2053 * qeth_send_control_data() - send control command to the card
2054 * @card: qeth_card structure pointer
2055 * @len: size of the command buffer
2056 * @iob: qeth_cmd_buffer pointer
2057 * @reply_cb: callback function pointer
2058 * @cb_card: pointer to the qeth_card structure
2059 * @cb_reply: pointer to the qeth_reply structure
2060 * @cb_cmd: pointer to the original iob for non-IPA
2061 * commands, or to the qeth_ipa_cmd structure
2062 * for the IPA commands.
2063 * @reply_param: private pointer passed to the callback
2065 * Returns the value of the `return_code' field of the response
2066 * block returned from the hardware, or other error indication.
2067 * Value of zero indicates successful execution of the command.
2069 * Callback function gets called one or more times, with cb_cmd
2070 * pointing to the response returned by the hardware. Callback
2071 * function must return non-zero if more reply blocks are expected,
2072 * and zero if the last or only reply block is received. Callback
2073 * function can get the value of the reply_param pointer from the
2074 * field 'param' of the structure qeth_reply.
2077 int qeth_send_control_data(struct qeth_card *card, int len,
2078 struct qeth_cmd_buffer *iob,
2079 int (*reply_cb)(struct qeth_card *cb_card,
2080 struct qeth_reply *cb_reply,
2081 unsigned long cb_cmd),
2085 unsigned long flags;
2086 struct qeth_reply *reply = NULL;
2087 unsigned long timeout, event_timeout;
2088 struct qeth_ipa_cmd *cmd = NULL;
2090 QETH_CARD_TEXT(card, 2, "sendctl");
2092 if (card->read_or_write_problem) {
2093 qeth_release_buffer(iob->channel, iob);
2096 reply = qeth_alloc_reply(card);
2100 reply->callback = reply_cb;
2101 reply->param = reply_param;
2103 init_waitqueue_head(&reply->wait_q);
2104 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
2106 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
2108 if (IS_IPA(iob->data)) {
2109 cmd = __ipa_cmd(iob);
2110 cmd->hdr.seqno = card->seqno.ipa++;
2111 reply->seqno = cmd->hdr.seqno;
2112 event_timeout = QETH_IPA_TIMEOUT;
2114 reply->seqno = QETH_IDX_COMMAND_SEQNO;
2115 event_timeout = QETH_TIMEOUT;
2117 qeth_prepare_control_data(card, len, iob);
2119 spin_lock_irqsave(&card->lock, flags);
2120 list_add_tail(&reply->list, &card->cmd_waiter_list);
2121 spin_unlock_irqrestore(&card->lock, flags);
2123 timeout = jiffies + event_timeout;
2125 QETH_CARD_TEXT(card, 6, "noirqpnd");
2126 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
2127 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
2128 (addr_t) iob, 0, 0);
2129 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
2131 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2132 "ccw_device_start rc = %i\n",
2133 dev_name(&card->write.ccwdev->dev), rc);
2134 QETH_CARD_TEXT_(card, 2, " err%d", rc);
2135 spin_lock_irqsave(&card->lock, flags);
2136 list_del_init(&reply->list);
2137 qeth_put_reply(reply);
2138 spin_unlock_irqrestore(&card->lock, flags);
2139 qeth_release_buffer(iob->channel, iob);
2140 atomic_set(&card->write.irq_pending, 0);
2141 wake_up(&card->wait_q);
2145 /* we have only one long running ipassist, since we can ensure
2146 process context of this command we can sleep */
2147 if (cmd && cmd->hdr.command == IPA_CMD_SETIP &&
2148 cmd->hdr.prot_version == QETH_PROT_IPV4) {
2149 if (!wait_event_timeout(reply->wait_q,
2150 atomic_read(&reply->received), event_timeout))
2153 while (!atomic_read(&reply->received)) {
2154 if (time_after(jiffies, timeout))
2160 if (reply->rc == -EIO)
2163 qeth_put_reply(reply);
2168 spin_lock_irqsave(&reply->card->lock, flags);
2169 list_del_init(&reply->list);
2170 spin_unlock_irqrestore(&reply->card->lock, flags);
2171 atomic_inc(&reply->received);
2173 atomic_set(&card->write.irq_pending, 0);
2174 qeth_release_buffer(iob->channel, iob);
2175 card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
2177 qeth_put_reply(reply);
2180 EXPORT_SYMBOL_GPL(qeth_send_control_data);
2182 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2185 struct qeth_cmd_buffer *iob;
2187 QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
2189 iob = (struct qeth_cmd_buffer *) data;
2190 memcpy(&card->token.cm_filter_r,
2191 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2192 QETH_MPC_TOKEN_LENGTH);
2193 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2197 static int qeth_cm_enable(struct qeth_card *card)
2200 struct qeth_cmd_buffer *iob;
2202 QETH_DBF_TEXT(SETUP, 2, "cmenable");
2204 iob = qeth_wait_for_buffer(&card->write);
2205 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2206 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2207 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2208 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2209 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2211 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2212 qeth_cm_enable_cb, NULL);
2216 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2220 struct qeth_cmd_buffer *iob;
2222 QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
2224 iob = (struct qeth_cmd_buffer *) data;
2225 memcpy(&card->token.cm_connection_r,
2226 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2227 QETH_MPC_TOKEN_LENGTH);
2228 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2232 static int qeth_cm_setup(struct qeth_card *card)
2235 struct qeth_cmd_buffer *iob;
2237 QETH_DBF_TEXT(SETUP, 2, "cmsetup");
2239 iob = qeth_wait_for_buffer(&card->write);
2240 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2241 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2242 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2243 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2244 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2245 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2246 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2247 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2248 qeth_cm_setup_cb, NULL);
2253 static int qeth_get_initial_mtu_for_card(struct qeth_card *card)
2255 switch (card->info.type) {
2256 case QETH_CARD_TYPE_UNKNOWN:
2258 case QETH_CARD_TYPE_IQD:
2259 return card->info.max_mtu;
2260 case QETH_CARD_TYPE_OSD:
2261 switch (card->info.link_type) {
2262 case QETH_LINK_TYPE_HSTR:
2263 case QETH_LINK_TYPE_LANE_TR:
2266 return card->options.layer2 ? 1500 : 1492;
2268 case QETH_CARD_TYPE_OSM:
2269 case QETH_CARD_TYPE_OSX:
2270 return card->options.layer2 ? 1500 : 1492;
2276 static int qeth_get_mtu_outof_framesize(int framesize)
2278 switch (framesize) {
2292 static int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
2294 switch (card->info.type) {
2295 case QETH_CARD_TYPE_OSD:
2296 case QETH_CARD_TYPE_OSM:
2297 case QETH_CARD_TYPE_OSX:
2298 case QETH_CARD_TYPE_IQD:
2299 return ((mtu >= 576) &&
2300 (mtu <= card->info.max_mtu));
2301 case QETH_CARD_TYPE_OSN:
2302 case QETH_CARD_TYPE_UNKNOWN:
2308 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2312 __u16 mtu, framesize;
2315 struct qeth_cmd_buffer *iob;
2317 QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
2319 iob = (struct qeth_cmd_buffer *) data;
2320 memcpy(&card->token.ulp_filter_r,
2321 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2322 QETH_MPC_TOKEN_LENGTH);
2323 if (card->info.type == QETH_CARD_TYPE_IQD) {
2324 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2325 mtu = qeth_get_mtu_outof_framesize(framesize);
2328 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2331 if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
2332 /* frame size has changed */
2334 ((card->dev->mtu == card->info.initial_mtu) ||
2335 (card->dev->mtu > mtu)))
2336 card->dev->mtu = mtu;
2337 qeth_free_qdio_buffers(card);
2339 card->info.initial_mtu = mtu;
2340 card->info.max_mtu = mtu;
2341 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2343 card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
2345 card->info.initial_mtu = min(card->info.max_mtu,
2346 qeth_get_initial_mtu_for_card(card));
2347 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2350 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2351 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2353 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2354 card->info.link_type = link_type;
2356 card->info.link_type = 0;
2357 QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
2358 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2362 static int qeth_ulp_enable(struct qeth_card *card)
2366 struct qeth_cmd_buffer *iob;
2368 /*FIXME: trace view callbacks*/
2369 QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
2371 iob = qeth_wait_for_buffer(&card->write);
2372 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2374 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2375 (__u8) card->info.portno;
2376 if (card->options.layer2)
2377 if (card->info.type == QETH_CARD_TYPE_OSN)
2378 prot_type = QETH_PROT_OSN2;
2380 prot_type = QETH_PROT_LAYER2;
2382 prot_type = QETH_PROT_TCPIP;
2384 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
2385 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2386 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2387 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2388 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2389 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2390 qeth_ulp_enable_cb, NULL);
2395 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2398 struct qeth_cmd_buffer *iob;
2400 QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
2402 iob = (struct qeth_cmd_buffer *) data;
2403 memcpy(&card->token.ulp_connection_r,
2404 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2405 QETH_MPC_TOKEN_LENGTH);
2406 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2408 QETH_DBF_TEXT(SETUP, 2, "olmlimit");
2409 dev_err(&card->gdev->dev, "A connection could not be "
2410 "established because of an OLM limit\n");
2413 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2417 static int qeth_ulp_setup(struct qeth_card *card)
2421 struct qeth_cmd_buffer *iob;
2422 struct ccw_dev_id dev_id;
2424 QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2426 iob = qeth_wait_for_buffer(&card->write);
2427 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2429 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2430 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2431 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2432 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2433 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2434 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2436 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2437 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2438 temp = (card->info.cula << 8) + card->info.unit_addr2;
2439 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2440 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2441 qeth_ulp_setup_cb, NULL);
2445 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx)
2448 struct qeth_qdio_out_buffer *newbuf;
2451 newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC);
2456 newbuf->buffer = q->qdio_bufs[bidx];
2457 skb_queue_head_init(&newbuf->skb_list);
2458 lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key);
2461 newbuf->next_pending = q->bufs[bidx];
2462 atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY);
2463 q->bufs[bidx] = newbuf;
2465 q->bufstates[bidx].user = newbuf;
2466 QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx);
2467 QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf);
2468 QETH_CARD_TEXT_(q->card, 2, "%lx",
2469 (long) newbuf->next_pending);
2475 static void qeth_free_output_queue(struct qeth_qdio_out_q *q)
2480 qeth_clear_outq_buffers(q, 1);
2481 qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
2485 static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void)
2487 struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
2492 if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
2499 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2503 QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2505 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2506 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2509 QETH_DBF_TEXT(SETUP, 2, "inq");
2510 card->qdio.in_q = qeth_alloc_qdio_queue();
2511 if (!card->qdio.in_q)
2514 /* inbound buffer pool */
2515 if (qeth_alloc_buffer_pool(card))
2520 kzalloc(card->qdio.no_out_queues *
2521 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2522 if (!card->qdio.out_qs)
2524 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2525 card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf();
2526 if (!card->qdio.out_qs[i])
2528 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2529 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2530 card->qdio.out_qs[i]->queue_no = i;
2531 /* give outbound qeth_qdio_buffers their qdio_buffers */
2532 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2533 WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
2534 if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
2535 goto out_freeoutqbufs;
2540 if (qeth_alloc_cq(card))
2548 kmem_cache_free(qeth_qdio_outbuf_cache,
2549 card->qdio.out_qs[i]->bufs[j]);
2550 card->qdio.out_qs[i]->bufs[j] = NULL;
2554 qeth_free_output_queue(card->qdio.out_qs[--i]);
2555 kfree(card->qdio.out_qs);
2556 card->qdio.out_qs = NULL;
2558 qeth_free_buffer_pool(card);
2560 qeth_free_qdio_queue(card->qdio.in_q);
2561 card->qdio.in_q = NULL;
2563 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2567 static void qeth_free_qdio_buffers(struct qeth_card *card)
2571 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
2572 QETH_QDIO_UNINITIALIZED)
2576 cancel_delayed_work_sync(&card->buffer_reclaim_work);
2577 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2578 if (card->qdio.in_q->bufs[j].rx_skb)
2579 dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
2581 qeth_free_qdio_queue(card->qdio.in_q);
2582 card->qdio.in_q = NULL;
2583 /* inbound buffer pool */
2584 qeth_free_buffer_pool(card);
2585 /* free outbound qdio_qs */
2586 if (card->qdio.out_qs) {
2587 for (i = 0; i < card->qdio.no_out_queues; i++)
2588 qeth_free_output_queue(card->qdio.out_qs[i]);
2589 kfree(card->qdio.out_qs);
2590 card->qdio.out_qs = NULL;
2594 static void qeth_create_qib_param_field(struct qeth_card *card,
2598 param_field[0] = _ascebc['P'];
2599 param_field[1] = _ascebc['C'];
2600 param_field[2] = _ascebc['I'];
2601 param_field[3] = _ascebc['T'];
2602 *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card);
2603 *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card);
2604 *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card);
2607 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2610 param_field[16] = _ascebc['B'];
2611 param_field[17] = _ascebc['L'];
2612 param_field[18] = _ascebc['K'];
2613 param_field[19] = _ascebc['T'];
2614 *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total;
2615 *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet;
2616 *((unsigned int *) (¶m_field[28])) =
2617 card->info.blkt.inter_packet_jumbo;
2620 static int qeth_qdio_activate(struct qeth_card *card)
2622 QETH_DBF_TEXT(SETUP, 3, "qdioact");
2623 return qdio_activate(CARD_DDEV(card));
2626 static int qeth_dm_act(struct qeth_card *card)
2629 struct qeth_cmd_buffer *iob;
2631 QETH_DBF_TEXT(SETUP, 2, "dmact");
2633 iob = qeth_wait_for_buffer(&card->write);
2634 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2636 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2637 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2638 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2639 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2640 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2644 static int qeth_mpc_initialize(struct qeth_card *card)
2648 QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2650 rc = qeth_issue_next_read(card);
2652 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2655 rc = qeth_cm_enable(card);
2657 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2660 rc = qeth_cm_setup(card);
2662 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2665 rc = qeth_ulp_enable(card);
2667 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2670 rc = qeth_ulp_setup(card);
2672 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2675 rc = qeth_alloc_qdio_buffers(card);
2677 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2680 rc = qeth_qdio_establish(card);
2682 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2683 qeth_free_qdio_buffers(card);
2686 rc = qeth_qdio_activate(card);
2688 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2691 rc = qeth_dm_act(card);
2693 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2699 qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2700 qdio_free(CARD_DDEV(card));
2704 void qeth_print_status_message(struct qeth_card *card)
2706 switch (card->info.type) {
2707 case QETH_CARD_TYPE_OSD:
2708 case QETH_CARD_TYPE_OSM:
2709 case QETH_CARD_TYPE_OSX:
2710 /* VM will use a non-zero first character
2711 * to indicate a HiperSockets like reporting
2712 * of the level OSA sets the first character to zero
2714 if (!card->info.mcl_level[0]) {
2715 sprintf(card->info.mcl_level, "%02x%02x",
2716 card->info.mcl_level[2],
2717 card->info.mcl_level[3]);
2721 case QETH_CARD_TYPE_IQD:
2722 if ((card->info.guestlan) ||
2723 (card->info.mcl_level[0] & 0x80)) {
2724 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2725 card->info.mcl_level[0]];
2726 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2727 card->info.mcl_level[1]];
2728 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2729 card->info.mcl_level[2]];
2730 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2731 card->info.mcl_level[3]];
2732 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2736 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2738 dev_info(&card->gdev->dev,
2739 "Device is a%s card%s%s%s\nwith link type %s.\n",
2740 qeth_get_cardname(card),
2741 (card->info.mcl_level[0]) ? " (level: " : "",
2742 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2743 (card->info.mcl_level[0]) ? ")" : "",
2744 qeth_get_cardname_short(card));
2746 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2748 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2750 struct qeth_buffer_pool_entry *entry;
2752 QETH_CARD_TEXT(card, 5, "inwrklst");
2754 list_for_each_entry(entry,
2755 &card->qdio.init_pool.entry_list, init_list) {
2756 qeth_put_buffer_pool_entry(card, entry);
2760 static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2761 struct qeth_card *card)
2763 struct list_head *plh;
2764 struct qeth_buffer_pool_entry *entry;
2768 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2771 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2772 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2774 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2775 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2781 list_del_init(&entry->list);
2786 /* no free buffer in pool so take first one and swap pages */
2787 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2788 struct qeth_buffer_pool_entry, list);
2789 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2790 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2791 page = alloc_page(GFP_ATOMIC);
2795 free_page((unsigned long)entry->elements[i]);
2796 entry->elements[i] = page_address(page);
2797 if (card->options.performance_stats)
2798 card->perf_stats.sg_alloc_page_rx++;
2802 list_del_init(&entry->list);
2806 static int qeth_init_input_buffer(struct qeth_card *card,
2807 struct qeth_qdio_buffer *buf)
2809 struct qeth_buffer_pool_entry *pool_entry;
2812 if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) {
2813 buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
2818 pool_entry = qeth_find_free_buffer_pool_entry(card);
2823 * since the buffer is accessed only from the input_tasklet
2824 * there shouldn't be a need to synchronize; also, since we use
2825 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2829 buf->pool_entry = pool_entry;
2830 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2831 buf->buffer->element[i].length = PAGE_SIZE;
2832 buf->buffer->element[i].addr = pool_entry->elements[i];
2833 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2834 buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY;
2836 buf->buffer->element[i].eflags = 0;
2837 buf->buffer->element[i].sflags = 0;
2842 int qeth_init_qdio_queues(struct qeth_card *card)
2847 QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2850 qdio_reset_buffers(card->qdio.in_q->qdio_bufs,
2851 QDIO_MAX_BUFFERS_PER_Q);
2852 qeth_initialize_working_pool_list(card);
2853 /*give only as many buffers to hardware as we have buffer pool entries*/
2854 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2855 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2856 card->qdio.in_q->next_buf_to_init =
2857 card->qdio.in_buf_pool.buf_count - 1;
2858 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2859 card->qdio.in_buf_pool.buf_count - 1);
2861 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2866 rc = qeth_cq_init(card);
2871 /* outbound queue */
2872 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2873 qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs,
2874 QDIO_MAX_BUFFERS_PER_Q);
2875 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2876 qeth_clear_output_buffer(card->qdio.out_qs[i],
2877 card->qdio.out_qs[i]->bufs[j],
2878 QETH_QDIO_BUF_EMPTY);
2880 card->qdio.out_qs[i]->card = card;
2881 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2882 card->qdio.out_qs[i]->do_pack = 0;
2883 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2884 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2885 atomic_set(&card->qdio.out_qs[i]->state,
2886 QETH_OUT_Q_UNLOCKED);
2890 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2892 static __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2894 switch (link_type) {
2895 case QETH_LINK_TYPE_HSTR:
2902 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2903 struct qeth_ipa_cmd *cmd, __u8 command,
2904 enum qeth_prot_versions prot)
2906 memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2907 cmd->hdr.command = command;
2908 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2909 /* cmd->hdr.seqno is set by qeth_send_control_data() */
2910 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2911 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2912 if (card->options.layer2)
2913 cmd->hdr.prim_version_no = 2;
2915 cmd->hdr.prim_version_no = 1;
2916 cmd->hdr.param_count = 1;
2917 cmd->hdr.prot_version = prot;
2918 cmd->hdr.ipa_supported = 0;
2919 cmd->hdr.ipa_enabled = 0;
2922 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2923 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2925 struct qeth_cmd_buffer *iob;
2926 struct qeth_ipa_cmd *cmd;
2928 iob = qeth_get_buffer(&card->write);
2930 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2931 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2933 dev_warn(&card->gdev->dev,
2934 "The qeth driver ran out of channel command buffers\n");
2935 QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers",
2936 dev_name(&card->gdev->dev));
2941 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2943 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2946 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2947 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2948 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2949 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2951 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2954 * qeth_send_ipa_cmd() - send an IPA command
2956 * See qeth_send_control_data() for explanation of the arguments.
2959 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2960 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2967 QETH_CARD_TEXT(card, 4, "sendipa");
2969 if (card->options.layer2)
2970 if (card->info.type == QETH_CARD_TYPE_OSN)
2971 prot_type = QETH_PROT_OSN2;
2973 prot_type = QETH_PROT_LAYER2;
2975 prot_type = QETH_PROT_TCPIP;
2976 qeth_prepare_ipa_cmd(card, iob, prot_type);
2977 rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2978 iob, reply_cb, reply_param);
2980 qeth_clear_ipacmd_list(card);
2981 qeth_schedule_recovery(card);
2985 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2987 static int qeth_send_startlan(struct qeth_card *card)
2990 struct qeth_cmd_buffer *iob;
2992 QETH_DBF_TEXT(SETUP, 2, "strtlan");
2994 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
2997 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
3001 static int qeth_setadpparms_inspect_rc(struct qeth_ipa_cmd *cmd)
3003 if (!cmd->hdr.return_code)
3004 cmd->hdr.return_code =
3005 cmd->data.setadapterparms.hdr.return_code;
3006 return cmd->hdr.return_code;
3009 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
3010 struct qeth_reply *reply, unsigned long data)
3012 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
3014 QETH_CARD_TEXT(card, 3, "quyadpcb");
3015 if (qeth_setadpparms_inspect_rc(cmd))
3018 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
3019 card->info.link_type =
3020 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
3021 QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
3023 card->options.adp.supported_funcs =
3024 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
3028 static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
3029 __u32 command, __u32 cmdlen)
3031 struct qeth_cmd_buffer *iob;
3032 struct qeth_ipa_cmd *cmd;
3034 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
3037 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3038 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
3039 cmd->data.setadapterparms.hdr.command_code = command;
3040 cmd->data.setadapterparms.hdr.used_total = 1;
3041 cmd->data.setadapterparms.hdr.seq_no = 1;
3047 int qeth_query_setadapterparms(struct qeth_card *card)
3050 struct qeth_cmd_buffer *iob;
3052 QETH_CARD_TEXT(card, 3, "queryadp");
3053 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
3054 sizeof(struct qeth_ipacmd_setadpparms));
3057 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
3060 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
3062 static int qeth_query_ipassists_cb(struct qeth_card *card,
3063 struct qeth_reply *reply, unsigned long data)
3065 struct qeth_ipa_cmd *cmd;
3067 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
3069 cmd = (struct qeth_ipa_cmd *) data;
3071 switch (cmd->hdr.return_code) {
3072 case IPA_RC_NOTSUPP:
3073 case IPA_RC_L2_UNSUPPORTED_CMD:
3074 QETH_DBF_TEXT(SETUP, 2, "ipaunsup");
3075 card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS;
3076 card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS;
3079 if (cmd->hdr.return_code) {
3080 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
3082 dev_name(&card->gdev->dev),
3083 cmd->hdr.return_code);
3088 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
3089 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
3090 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
3091 } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) {
3092 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
3093 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
3095 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
3096 "\n", dev_name(&card->gdev->dev));
3100 int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
3103 struct qeth_cmd_buffer *iob;
3105 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
3106 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
3109 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
3112 EXPORT_SYMBOL_GPL(qeth_query_ipassists);
3114 static int qeth_query_switch_attributes_cb(struct qeth_card *card,
3115 struct qeth_reply *reply, unsigned long data)
3117 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
3118 struct qeth_query_switch_attributes *attrs;
3119 struct qeth_switch_info *sw_info;
3121 QETH_CARD_TEXT(card, 2, "qswiatcb");
3122 if (qeth_setadpparms_inspect_rc(cmd))
3125 sw_info = (struct qeth_switch_info *)reply->param;
3126 attrs = &cmd->data.setadapterparms.data.query_switch_attributes;
3127 sw_info->capabilities = attrs->capabilities;
3128 sw_info->settings = attrs->settings;
3129 QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities,
3134 int qeth_query_switch_attributes(struct qeth_card *card,
3135 struct qeth_switch_info *sw_info)
3137 struct qeth_cmd_buffer *iob;
3139 QETH_CARD_TEXT(card, 2, "qswiattr");
3140 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES))
3142 if (!netif_carrier_ok(card->dev))
3144 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES,
3145 sizeof(struct qeth_ipacmd_setadpparms_hdr));
3148 return qeth_send_ipa_cmd(card, iob,
3149 qeth_query_switch_attributes_cb, sw_info);
3151 EXPORT_SYMBOL_GPL(qeth_query_switch_attributes);
3153 static int qeth_query_setdiagass_cb(struct qeth_card *card,
3154 struct qeth_reply *reply, unsigned long data)
3156 struct qeth_ipa_cmd *cmd;
3159 cmd = (struct qeth_ipa_cmd *)data;
3160 rc = cmd->hdr.return_code;
3162 QETH_CARD_TEXT_(card, 2, "diagq:%x", rc);
3164 card->info.diagass_support = cmd->data.diagass.ext;
3168 static int qeth_query_setdiagass(struct qeth_card *card)
3170 struct qeth_cmd_buffer *iob;
3171 struct qeth_ipa_cmd *cmd;
3173 QETH_DBF_TEXT(SETUP, 2, "qdiagass");
3174 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3177 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3178 cmd->data.diagass.subcmd_len = 16;
3179 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY;
3180 return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL);
3183 static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
3185 unsigned long info = get_zeroed_page(GFP_KERNEL);
3186 struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info;
3187 struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info;
3188 struct ccw_dev_id ccwid;
3191 tid->chpid = card->info.chpid;
3192 ccw_device_get_id(CARD_RDEV(card), &ccwid);
3193 tid->ssid = ccwid.ssid;
3194 tid->devno = ccwid.devno;
3197 level = stsi(NULL, 0, 0, 0);
3198 if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0))
3199 tid->lparnr = info222->lpar_number;
3200 if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) {
3201 EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name));
3202 memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));
3208 static int qeth_hw_trap_cb(struct qeth_card *card,
3209 struct qeth_reply *reply, unsigned long data)
3211 struct qeth_ipa_cmd *cmd;
3214 cmd = (struct qeth_ipa_cmd *)data;
3215 rc = cmd->hdr.return_code;
3217 QETH_CARD_TEXT_(card, 2, "trapc:%x", rc);
3221 int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action)
3223 struct qeth_cmd_buffer *iob;
3224 struct qeth_ipa_cmd *cmd;
3226 QETH_DBF_TEXT(SETUP, 2, "diagtrap");
3227 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3230 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3231 cmd->data.diagass.subcmd_len = 80;
3232 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP;
3233 cmd->data.diagass.type = 1;
3234 cmd->data.diagass.action = action;
3236 case QETH_DIAGS_TRAP_ARM:
3237 cmd->data.diagass.options = 0x0003;
3238 cmd->data.diagass.ext = 0x00010000 +
3239 sizeof(struct qeth_trap_id);
3240 qeth_get_trap_id(card,
3241 (struct qeth_trap_id *)cmd->data.diagass.cdata);
3243 case QETH_DIAGS_TRAP_DISARM:
3244 cmd->data.diagass.options = 0x0001;
3246 case QETH_DIAGS_TRAP_CAPTURE:
3249 return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL);
3251 EXPORT_SYMBOL_GPL(qeth_hw_trap);
3253 static int qeth_check_qdio_errors(struct qeth_card *card,
3254 struct qdio_buffer *buf,
3255 unsigned int qdio_error,
3256 const char *dbftext)
3259 QETH_CARD_TEXT(card, 2, dbftext);
3260 QETH_CARD_TEXT_(card, 2, " F15=%02X",
3261 buf->element[15].sflags);
3262 QETH_CARD_TEXT_(card, 2, " F14=%02X",
3263 buf->element[14].sflags);
3264 QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
3265 if ((buf->element[15].sflags) == 0x12) {
3266 card->stats.rx_dropped++;
3274 static void qeth_queue_input_buffer(struct qeth_card *card, int index)
3276 struct qeth_qdio_q *queue = card->qdio.in_q;
3277 struct list_head *lh;
3283 count = (index < queue->next_buf_to_init)?
3284 card->qdio.in_buf_pool.buf_count -
3285 (queue->next_buf_to_init - index) :
3286 card->qdio.in_buf_pool.buf_count -
3287 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
3288 /* only requeue at a certain threshold to avoid SIGAs */
3289 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
3290 for (i = queue->next_buf_to_init;
3291 i < queue->next_buf_to_init + count; ++i) {
3292 if (qeth_init_input_buffer(card,
3293 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
3300 if (newcount < count) {
3301 /* we are in memory shortage so we switch back to
3302 traditional skb allocation and drop packages */
3303 atomic_set(&card->force_alloc_skb, 3);
3306 atomic_add_unless(&card->force_alloc_skb, -1, 0);
3311 list_for_each(lh, &card->qdio.in_buf_pool.entry_list)
3313 if (i == card->qdio.in_buf_pool.buf_count) {
3314 QETH_CARD_TEXT(card, 2, "qsarbw");
3315 card->reclaim_index = index;
3316 schedule_delayed_work(
3317 &card->buffer_reclaim_work,
3318 QETH_RECLAIM_WORK_TIME);
3324 * according to old code it should be avoided to requeue all
3325 * 128 buffers in order to benefit from PCI avoidance.
3326 * this function keeps at least one buffer (the buffer at
3327 * 'index') un-requeued -> this buffer is the first buffer that
3328 * will be requeued the next time
3330 if (card->options.performance_stats) {
3331 card->perf_stats.inbound_do_qdio_cnt++;
3332 card->perf_stats.inbound_do_qdio_start_time =
3335 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
3336 queue->next_buf_to_init, count);
3337 if (card->options.performance_stats)
3338 card->perf_stats.inbound_do_qdio_time +=
3340 card->perf_stats.inbound_do_qdio_start_time;
3342 QETH_CARD_TEXT(card, 2, "qinberr");
3344 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
3345 QDIO_MAX_BUFFERS_PER_Q;
3349 static void qeth_buffer_reclaim_work(struct work_struct *work)
3351 struct qeth_card *card = container_of(work, struct qeth_card,
3352 buffer_reclaim_work.work);
3354 QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index);
3355 qeth_queue_input_buffer(card, card->reclaim_index);
3358 static void qeth_handle_send_error(struct qeth_card *card,
3359 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
3361 int sbalf15 = buffer->buffer->element[15].sflags;
3363 QETH_CARD_TEXT(card, 6, "hdsnderr");
3364 if (card->info.type == QETH_CARD_TYPE_IQD) {
3371 qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
3376 if ((sbalf15 >= 15) && (sbalf15 <= 31))
3379 QETH_CARD_TEXT(card, 1, "lnkfail");
3380 QETH_CARD_TEXT_(card, 1, "%04x %02x",
3381 (u16)qdio_err, (u8)sbalf15);
3385 * qeth_prep_flush_pack_buffer - Prepares flushing of a packing buffer.
3386 * @queue: queue to check for packing buffer
3388 * Returns number of buffers that were prepared for flush.
3390 static int qeth_prep_flush_pack_buffer(struct qeth_qdio_out_q *queue)
3392 struct qeth_qdio_out_buffer *buffer;
3394 buffer = queue->bufs[queue->next_buf_to_fill];
3395 if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3396 (buffer->next_element_to_fill > 0)) {
3397 /* it's a packing buffer */
3398 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3399 queue->next_buf_to_fill =
3400 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3407 * Switched to packing state if the number of used buffers on a queue
3408 * reaches a certain limit.
3410 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3412 if (!queue->do_pack) {
3413 if (atomic_read(&queue->used_buffers)
3414 >= QETH_HIGH_WATERMARK_PACK){
3415 /* switch non-PACKING -> PACKING */
3416 QETH_CARD_TEXT(queue->card, 6, "np->pack");
3417 if (queue->card->options.performance_stats)
3418 queue->card->perf_stats.sc_dp_p++;
3425 * Switches from packing to non-packing mode. If there is a packing
3426 * buffer on the queue this buffer will be prepared to be flushed.
3427 * In that case 1 is returned to inform the caller. If no buffer
3428 * has to be flushed, zero is returned.
3430 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3432 if (queue->do_pack) {
3433 if (atomic_read(&queue->used_buffers)
3434 <= QETH_LOW_WATERMARK_PACK) {
3435 /* switch PACKING -> non-PACKING */
3436 QETH_CARD_TEXT(queue->card, 6, "pack->np");
3437 if (queue->card->options.performance_stats)
3438 queue->card->perf_stats.sc_p_dp++;
3440 return qeth_prep_flush_pack_buffer(queue);
3446 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
3449 struct qeth_qdio_out_buffer *buf;
3452 unsigned int qdio_flags;
3454 for (i = index; i < index + count; ++i) {
3455 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3456 buf = queue->bufs[bidx];
3457 buf->buffer->element[buf->next_element_to_fill - 1].eflags |=
3458 SBAL_EFLAGS_LAST_ENTRY;
3460 if (queue->bufstates)
3461 queue->bufstates[bidx].user = buf;
3463 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
3466 if (!queue->do_pack) {
3467 if ((atomic_read(&queue->used_buffers) >=
3468 (QETH_HIGH_WATERMARK_PACK -
3469 QETH_WATERMARK_PACK_FUZZ)) &&
3470 !atomic_read(&queue->set_pci_flags_count)) {
3471 /* it's likely that we'll go to packing
3473 atomic_inc(&queue->set_pci_flags_count);
3474 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3477 if (!atomic_read(&queue->set_pci_flags_count)) {
3479 * there's no outstanding PCI any more, so we
3480 * have to request a PCI to be sure the the PCI
3481 * will wake at some time in the future then we
3482 * can flush packed buffers that might still be
3483 * hanging around, which can happen if no
3484 * further send was requested by the stack
3486 atomic_inc(&queue->set_pci_flags_count);
3487 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3492 netif_trans_update(queue->card->dev);
3493 if (queue->card->options.performance_stats) {
3494 queue->card->perf_stats.outbound_do_qdio_cnt++;
3495 queue->card->perf_stats.outbound_do_qdio_start_time =
3498 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3499 if (atomic_read(&queue->set_pci_flags_count))
3500 qdio_flags |= QDIO_FLAG_PCI_OUT;
3501 atomic_add(count, &queue->used_buffers);
3503 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3504 queue->queue_no, index, count);
3505 if (queue->card->options.performance_stats)
3506 queue->card->perf_stats.outbound_do_qdio_time +=
3508 queue->card->perf_stats.outbound_do_qdio_start_time;
3510 queue->card->stats.tx_errors += count;
3511 /* ignore temporary SIGA errors without busy condition */
3514 QETH_CARD_TEXT(queue->card, 2, "flushbuf");
3515 QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
3516 QETH_CARD_TEXT_(queue->card, 2, " idx%d", index);
3517 QETH_CARD_TEXT_(queue->card, 2, " c%d", count);
3518 QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
3520 /* this must not happen under normal circumstances. if it
3521 * happens something is really wrong -> recover */
3522 qeth_schedule_recovery(queue->card);
3525 if (queue->card->options.performance_stats)
3526 queue->card->perf_stats.bufs_sent += count;
3529 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3533 int q_was_packing = 0;
3536 * check if weed have to switch to non-packing mode or if
3537 * we have to get a pci flag out on the queue
3539 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3540 !atomic_read(&queue->set_pci_flags_count)) {
3541 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3542 QETH_OUT_Q_UNLOCKED) {
3544 * If we get in here, there was no action in
3545 * do_send_packet. So, we check if there is a
3546 * packing buffer to be flushed here.
3548 netif_stop_queue(queue->card->dev);
3549 index = queue->next_buf_to_fill;
3550 q_was_packing = queue->do_pack;
3551 /* queue->do_pack may change */
3553 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3555 !atomic_read(&queue->set_pci_flags_count))
3556 flush_cnt += qeth_prep_flush_pack_buffer(queue);
3557 if (queue->card->options.performance_stats &&
3559 queue->card->perf_stats.bufs_sent_pack +=
3562 qeth_flush_buffers(queue, index, flush_cnt);
3563 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3568 void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
3569 unsigned long card_ptr)
3571 struct qeth_card *card = (struct qeth_card *)card_ptr;
3573 if (card->dev && (card->dev->flags & IFF_UP))
3574 napi_schedule(&card->napi);
3576 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
3578 int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
3582 if (card->options.cq == QETH_CQ_NOTAVAILABLE) {
3586 if (card->options.cq == cq) {
3591 if (card->state != CARD_STATE_DOWN &&
3592 card->state != CARD_STATE_RECOVER) {
3597 qeth_free_qdio_buffers(card);
3598 card->options.cq = cq;
3605 EXPORT_SYMBOL_GPL(qeth_configure_cq);
3608 static void qeth_qdio_cq_handler(struct qeth_card *card,
3609 unsigned int qdio_err,
3610 unsigned int queue, int first_element, int count) {
3611 struct qeth_qdio_q *cq = card->qdio.c_q;
3615 if (!qeth_is_cq(card, queue))
3618 QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element);
3619 QETH_CARD_TEXT_(card, 5, "qcqhc%d", count);
3620 QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err);
3623 netif_stop_queue(card->dev);
3624 qeth_schedule_recovery(card);
3628 if (card->options.performance_stats) {
3629 card->perf_stats.cq_cnt++;
3630 card->perf_stats.cq_start_time = qeth_get_micros();
3633 for (i = first_element; i < first_element + count; ++i) {
3634 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3635 struct qdio_buffer *buffer = cq->qdio_bufs[bidx];
3639 while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) &&
3640 buffer->element[e].addr) {
3641 unsigned long phys_aob_addr;
3643 phys_aob_addr = (unsigned long) buffer->element[e].addr;
3644 qeth_qdio_handle_aob(card, phys_aob_addr);
3645 buffer->element[e].addr = NULL;
3646 buffer->element[e].eflags = 0;
3647 buffer->element[e].sflags = 0;
3648 buffer->element[e].length = 0;
3653 buffer->element[15].eflags = 0;
3654 buffer->element[15].sflags = 0;
3656 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue,
3657 card->qdio.c_q->next_buf_to_init,
3660 dev_warn(&card->gdev->dev,
3661 "QDIO reported an error, rc=%i\n", rc);
3662 QETH_CARD_TEXT(card, 2, "qcqherr");
3664 card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init
3665 + count) % QDIO_MAX_BUFFERS_PER_Q;
3667 netif_wake_queue(card->dev);
3669 if (card->options.performance_stats) {
3670 int delta_t = qeth_get_micros();
3671 delta_t -= card->perf_stats.cq_start_time;
3672 card->perf_stats.cq_time += delta_t;
3678 void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
3679 unsigned int queue, int first_elem, int count,
3680 unsigned long card_ptr)
3682 struct qeth_card *card = (struct qeth_card *)card_ptr;
3684 QETH_CARD_TEXT_(card, 2, "qihq%d", queue);
3685 QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err);
3687 if (qeth_is_cq(card, queue))
3688 qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count);
3690 qeth_schedule_recovery(card);
3694 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
3696 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
3697 unsigned int qdio_error, int __queue, int first_element,
3698 int count, unsigned long card_ptr)
3700 struct qeth_card *card = (struct qeth_card *) card_ptr;
3701 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3702 struct qeth_qdio_out_buffer *buffer;
3705 QETH_CARD_TEXT(card, 6, "qdouhdl");
3706 if (qdio_error & QDIO_ERROR_FATAL) {
3707 QETH_CARD_TEXT(card, 2, "achkcond");
3708 netif_stop_queue(card->dev);
3709 qeth_schedule_recovery(card);
3712 if (card->options.performance_stats) {
3713 card->perf_stats.outbound_handler_cnt++;
3714 card->perf_stats.outbound_handler_start_time =
3717 for (i = first_element; i < (first_element + count); ++i) {
3718 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3719 buffer = queue->bufs[bidx];
3720 qeth_handle_send_error(card, buffer, qdio_error);
3722 if (queue->bufstates &&
3723 (queue->bufstates[bidx].flags &
3724 QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) {
3725 WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
3727 if (atomic_cmpxchg(&buffer->state,
3728 QETH_QDIO_BUF_PRIMED,
3729 QETH_QDIO_BUF_PENDING) ==
3730 QETH_QDIO_BUF_PRIMED) {
3731 qeth_notify_skbs(queue, buffer,
3734 buffer->aob = queue->bufstates[bidx].aob;
3735 QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx);
3736 QETH_CARD_TEXT(queue->card, 5, "aob");
3737 QETH_CARD_TEXT_(queue->card, 5, "%lx",
3738 virt_to_phys(buffer->aob));
3739 if (qeth_init_qdio_out_buf(queue, bidx)) {
3740 QETH_CARD_TEXT(card, 2, "outofbuf");
3741 qeth_schedule_recovery(card);
3744 if (card->options.cq == QETH_CQ_ENABLED) {
3745 enum iucv_tx_notify n;
3747 n = qeth_compute_cq_notification(
3748 buffer->buffer->element[15].sflags, 0);
3749 qeth_notify_skbs(queue, buffer, n);
3752 qeth_clear_output_buffer(queue, buffer,
3753 QETH_QDIO_BUF_EMPTY);
3755 qeth_cleanup_handled_pending(queue, bidx, 0);
3757 atomic_sub(count, &queue->used_buffers);
3758 /* check if we need to do something on this outbound queue */
3759 if (card->info.type != QETH_CARD_TYPE_IQD)
3760 qeth_check_outbound_queue(queue);
3762 netif_wake_queue(queue->card->dev);
3763 if (card->options.performance_stats)
3764 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3765 card->perf_stats.outbound_handler_start_time;
3767 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
3769 /* We cannot use outbound queue 3 for unicast packets on HiperSockets */
3770 static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num)
3772 if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3))
3778 * Note: Function assumes that we have 4 outbound queues.
3780 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3781 int ipv, int cast_type)
3786 if (cast_type && card->info.is_multicast_different)
3787 return card->info.is_multicast_different &
3788 (card->qdio.no_out_queues - 1);
3790 switch (card->qdio.do_prio_queueing) {
3791 case QETH_PRIO_Q_ING_TOS:
3792 case QETH_PRIO_Q_ING_PREC:
3795 tos = ipv4_get_dsfield(ip_hdr(skb));
3798 tos = ipv6_get_dsfield(ipv6_hdr(skb));
3801 return card->qdio.default_out_queue;
3803 if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC)
3804 return qeth_cut_iqd_prio(card, ~tos >> 6 & 3);
3805 if (tos & IPTOS_MINCOST)
3806 return qeth_cut_iqd_prio(card, 3);
3807 if (tos & IPTOS_RELIABILITY)
3809 if (tos & IPTOS_THROUGHPUT)
3811 if (tos & IPTOS_LOWDELAY)
3814 case QETH_PRIO_Q_ING_SKB:
3815 if (skb->priority > 5)
3817 return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3);
3818 case QETH_PRIO_Q_ING_VLAN:
3819 tci = &((struct ethhdr *)skb->data)->h_proto;
3820 if (be16_to_cpu(*tci) == ETH_P_8021Q)
3821 return qeth_cut_iqd_prio(card,
3822 ~be16_to_cpu(*(tci + 1)) >> (VLAN_PRIO_SHIFT + 1) & 3);
3827 return card->qdio.default_out_queue;
3829 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
3832 * qeth_get_elements_for_frags() - find number of SBALEs for skb frags.
3835 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3836 * fragmented part of the SKB. Returns zero for linear SKB.
3838 int qeth_get_elements_for_frags(struct sk_buff *skb)
3840 int cnt, elements = 0;
3842 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3843 struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt];
3845 elements += qeth_get_elements_for_range(
3846 (addr_t)skb_frag_address(frag),
3847 (addr_t)skb_frag_address(frag) + skb_frag_size(frag));
3851 EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags);
3854 * qeth_get_elements_no() - find number of SBALEs for skb data, inc. frags.
3855 * @card: qeth card structure, to check max. elems.
3857 * @extra_elems: extra elems needed, to check against max.
3858 * @data_offset: range starts at skb->data + data_offset
3860 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3861 * skb data, including linear part and fragments. Checks if the result plus
3862 * extra_elems fits under the limit for the card. Returns 0 if it does not.
3863 * Note: extra_elems is not included in the returned result.
3865 int qeth_get_elements_no(struct qeth_card *card,
3866 struct sk_buff *skb, int extra_elems, int data_offset)
3868 addr_t end = (addr_t)skb->data + skb_headlen(skb);
3869 int elements = qeth_get_elements_for_frags(skb);
3870 addr_t start = (addr_t)skb->data + data_offset;
3873 elements += qeth_get_elements_for_range(start, end);
3875 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3876 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3877 "(Number=%d / Length=%d). Discarded.\n",
3878 elements + extra_elems, skb->len);
3883 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3885 int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len)
3887 int hroom, inpage, rest;
3889 if (((unsigned long)skb->data & PAGE_MASK) !=
3890 (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
3891 hroom = skb_headroom(skb);
3892 inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
3893 rest = len - inpage;
3896 memmove(skb->data - rest, skb->data, skb_headlen(skb));
3899 *hdr = (struct qeth_hdr *)skb->data;
3900 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
3904 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
3907 * qeth_push_hdr() - push a qeth_hdr onto an skb.
3908 * @skb: skb that the qeth_hdr should be pushed onto.
3909 * @hdr: double pointer to a qeth_hdr. When returning with >= 0,
3910 * it contains a valid pointer to a qeth_hdr.
3911 * @len: length of the hdr that needs to be pushed on.
3913 * Returns the pushed length. If the header can't be pushed on
3914 * (eg. because it would cross a page boundary), it is allocated from
3915 * the cache instead and 0 is returned.
3916 * Error to create the hdr is indicated by returning with < 0.
3918 int qeth_push_hdr(struct sk_buff *skb, struct qeth_hdr **hdr, unsigned int len)
3920 if (skb_headroom(skb) >= len &&
3921 qeth_get_elements_for_range((addr_t)skb->data - len,
3922 (addr_t)skb->data) == 1) {
3923 *hdr = skb_push(skb, len);
3927 *hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC);
3932 EXPORT_SYMBOL_GPL(qeth_push_hdr);
3934 static void __qeth_fill_buffer(struct sk_buff *skb,
3935 struct qeth_qdio_out_buffer *buf,
3936 bool is_first_elem, unsigned int offset)
3938 struct qdio_buffer *buffer = buf->buffer;
3939 int element = buf->next_element_to_fill;
3940 int length = skb_headlen(skb) - offset;
3941 char *data = skb->data + offset;
3942 int length_here, cnt;
3944 /* map linear part into buffer element(s) */
3945 while (length > 0) {
3946 /* length_here is the remaining amount of data in this page */
3947 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3948 if (length < length_here)
3949 length_here = length;
3951 buffer->element[element].addr = data;
3952 buffer->element[element].length = length_here;
3953 length -= length_here;
3954 if (is_first_elem) {
3955 is_first_elem = false;
3956 if (length || skb_is_nonlinear(skb))
3957 /* skb needs additional elements */
3958 buffer->element[element].eflags =
3959 SBAL_EFLAGS_FIRST_FRAG;
3961 buffer->element[element].eflags = 0;
3963 buffer->element[element].eflags =
3964 SBAL_EFLAGS_MIDDLE_FRAG;
3966 data += length_here;
3970 /* map page frags into buffer element(s) */
3971 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3972 skb_frag_t *frag = &skb_shinfo(skb)->frags[cnt];
3974 data = skb_frag_address(frag);
3975 length = skb_frag_size(frag);
3976 while (length > 0) {
3977 length_here = PAGE_SIZE -
3978 ((unsigned long) data % PAGE_SIZE);
3979 if (length < length_here)
3980 length_here = length;
3982 buffer->element[element].addr = data;
3983 buffer->element[element].length = length_here;
3984 buffer->element[element].eflags =
3985 SBAL_EFLAGS_MIDDLE_FRAG;
3986 length -= length_here;
3987 data += length_here;
3992 if (buffer->element[element - 1].eflags)
3993 buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG;
3994 buf->next_element_to_fill = element;
3998 * qeth_fill_buffer() - map skb into an output buffer
3999 * @queue: QDIO queue to submit the buffer on
4000 * @buf: buffer to transport the skb
4001 * @skb: skb to map into the buffer
4002 * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated
4003 * from qeth_core_header_cache.
4004 * @offset: when mapping the skb, start at skb->data + offset
4005 * @hd_len: if > 0, build a dedicated header element of this size
4007 static int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4008 struct qeth_qdio_out_buffer *buf,
4009 struct sk_buff *skb, struct qeth_hdr *hdr,
4010 unsigned int offset, unsigned int hd_len)
4012 struct qdio_buffer *buffer = buf->buffer;
4013 bool is_first_elem = true;
4016 refcount_inc(&skb->users);
4017 skb_queue_tail(&buf->skb_list, skb);
4019 /* build dedicated header element */
4021 int element = buf->next_element_to_fill;
4022 is_first_elem = false;
4024 buffer->element[element].addr = hdr;
4025 buffer->element[element].length = hd_len;
4026 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
4027 /* remember to free cache-allocated qeth_hdr: */
4028 buf->is_header[element] = ((void *)hdr != skb->data);
4029 buf->next_element_to_fill++;
4032 __qeth_fill_buffer(skb, buf, is_first_elem, offset);
4034 if (!queue->do_pack) {
4035 QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
4036 /* set state to PRIMED -> will be flushed */
4037 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4040 QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
4041 if (queue->card->options.performance_stats)
4042 queue->card->perf_stats.skbs_sent_pack++;
4043 if (buf->next_element_to_fill >=
4044 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4046 * packed buffer if full -> set state PRIMED
4047 * -> will be flushed
4049 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4056 int qeth_do_send_packet_fast(struct qeth_card *card,
4057 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
4058 struct qeth_hdr *hdr, unsigned int offset,
4059 unsigned int hd_len)
4061 struct qeth_qdio_out_buffer *buffer;
4064 /* spin until we get the queue ... */
4065 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4066 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4067 /* ... now we've got the queue */
4068 index = queue->next_buf_to_fill;
4069 buffer = queue->bufs[queue->next_buf_to_fill];
4071 * check if buffer is empty to make sure that we do not 'overtake'
4072 * ourselves and try to fill a buffer that is already primed
4074 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4076 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4077 QDIO_MAX_BUFFERS_PER_Q;
4078 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4079 qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
4080 qeth_flush_buffers(queue, index, 1);
4083 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4086 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
4088 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4089 struct sk_buff *skb, struct qeth_hdr *hdr,
4090 unsigned int offset, unsigned int hd_len,
4091 int elements_needed)
4093 struct qeth_qdio_out_buffer *buffer;
4095 int flush_count = 0;
4100 /* spin until we get the queue ... */
4101 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4102 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4103 start_index = queue->next_buf_to_fill;
4104 buffer = queue->bufs[queue->next_buf_to_fill];
4106 * check if buffer is empty to make sure that we do not 'overtake'
4107 * ourselves and try to fill a buffer that is already primed
4109 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4110 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4113 /* check if we need to switch packing state of this queue */
4114 qeth_switch_to_packing_if_needed(queue);
4115 if (queue->do_pack) {
4117 /* does packet fit in current buffer? */
4118 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
4119 buffer->next_element_to_fill) < elements_needed) {
4120 /* ... no -> set state PRIMED */
4121 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
4123 queue->next_buf_to_fill =
4124 (queue->next_buf_to_fill + 1) %
4125 QDIO_MAX_BUFFERS_PER_Q;
4126 buffer = queue->bufs[queue->next_buf_to_fill];
4127 /* we did a step forward, so check buffer state
4129 if (atomic_read(&buffer->state) !=
4130 QETH_QDIO_BUF_EMPTY) {
4131 qeth_flush_buffers(queue, start_index,
4133 atomic_set(&queue->state,
4134 QETH_OUT_Q_UNLOCKED);
4140 tmp = qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
4141 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4142 QDIO_MAX_BUFFERS_PER_Q;
4145 qeth_flush_buffers(queue, start_index, flush_count);
4146 else if (!atomic_read(&queue->set_pci_flags_count))
4147 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4149 * queue->state will go from LOCKED -> UNLOCKED or from
4150 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4151 * (switch packing state or flush buffer to get another pci flag out).
4152 * In that case we will enter this loop
4154 while (atomic_dec_return(&queue->state)) {
4155 start_index = queue->next_buf_to_fill;
4156 /* check if we can go back to non-packing state */
4157 tmp = qeth_switch_to_nonpacking_if_needed(queue);
4159 * check if we need to flush a packing buffer to get a pci
4160 * flag out on the queue
4162 if (!tmp && !atomic_read(&queue->set_pci_flags_count))
4163 tmp = qeth_prep_flush_pack_buffer(queue);
4165 qeth_flush_buffers(queue, start_index, tmp);
4170 /* at this point the queue is UNLOCKED again */
4171 if (queue->card->options.performance_stats && do_pack)
4172 queue->card->perf_stats.bufs_sent_pack += flush_count;
4176 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
4178 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
4179 struct qeth_reply *reply, unsigned long data)
4181 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
4182 struct qeth_ipacmd_setadpparms *setparms;
4184 QETH_CARD_TEXT(card, 4, "prmadpcb");
4186 setparms = &(cmd->data.setadapterparms);
4187 if (qeth_setadpparms_inspect_rc(cmd)) {
4188 QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code);
4189 setparms->data.mode = SET_PROMISC_MODE_OFF;
4191 card->info.promisc_mode = setparms->data.mode;
4195 void qeth_setadp_promisc_mode(struct qeth_card *card)
4197 enum qeth_ipa_promisc_modes mode;
4198 struct net_device *dev = card->dev;
4199 struct qeth_cmd_buffer *iob;
4200 struct qeth_ipa_cmd *cmd;
4202 QETH_CARD_TEXT(card, 4, "setprom");
4204 if (((dev->flags & IFF_PROMISC) &&
4205 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
4206 (!(dev->flags & IFF_PROMISC) &&
4207 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
4209 mode = SET_PROMISC_MODE_OFF;
4210 if (dev->flags & IFF_PROMISC)
4211 mode = SET_PROMISC_MODE_ON;
4212 QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
4214 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
4215 sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8);
4218 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
4219 cmd->data.setadapterparms.data.mode = mode;
4220 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
4222 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
4224 int qeth_change_mtu(struct net_device *dev, int new_mtu)
4226 struct qeth_card *card;
4229 card = dev->ml_priv;
4231 QETH_CARD_TEXT(card, 4, "chgmtu");
4232 sprintf(dbf_text, "%8x", new_mtu);
4233 QETH_CARD_TEXT(card, 4, dbf_text);
4235 if (!qeth_mtu_is_valid(card, new_mtu))
4240 EXPORT_SYMBOL_GPL(qeth_change_mtu);
4242 struct net_device_stats *qeth_get_stats(struct net_device *dev)
4244 struct qeth_card *card;
4246 card = dev->ml_priv;
4248 QETH_CARD_TEXT(card, 5, "getstat");
4250 return &card->stats;
4252 EXPORT_SYMBOL_GPL(qeth_get_stats);
4254 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
4255 struct qeth_reply *reply, unsigned long data)
4257 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
4259 QETH_CARD_TEXT(card, 4, "chgmaccb");
4260 if (qeth_setadpparms_inspect_rc(cmd))
4263 if (!card->options.layer2 ||
4264 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
4265 memcpy(card->dev->dev_addr,
4266 &cmd->data.setadapterparms.data.change_addr.addr,
4268 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
4273 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
4276 struct qeth_cmd_buffer *iob;
4277 struct qeth_ipa_cmd *cmd;
4279 QETH_CARD_TEXT(card, 4, "chgmac");
4281 iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
4282 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4283 sizeof(struct qeth_change_addr));
4286 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4287 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
4288 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
4289 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
4290 card->dev->dev_addr, OSA_ADDR_LEN);
4291 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
4295 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
4297 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
4298 struct qeth_reply *reply, unsigned long data)
4300 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
4301 struct qeth_set_access_ctrl *access_ctrl_req;
4302 int fallback = *(int *)reply->param;
4304 QETH_CARD_TEXT(card, 4, "setaccb");
4305 if (cmd->hdr.return_code)
4307 qeth_setadpparms_inspect_rc(cmd);
4309 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4310 QETH_DBF_TEXT_(SETUP, 2, "setaccb");
4311 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4312 QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
4313 cmd->data.setadapterparms.hdr.return_code);
4314 if (cmd->data.setadapterparms.hdr.return_code !=
4315 SET_ACCESS_CTRL_RC_SUCCESS)
4316 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4317 card->gdev->dev.kobj.name,
4318 access_ctrl_req->subcmd_code,
4319 cmd->data.setadapterparms.hdr.return_code);
4320 switch (cmd->data.setadapterparms.hdr.return_code) {
4321 case SET_ACCESS_CTRL_RC_SUCCESS:
4322 if (card->options.isolation == ISOLATION_MODE_NONE) {
4323 dev_info(&card->gdev->dev,
4324 "QDIO data connection isolation is deactivated\n");
4326 dev_info(&card->gdev->dev,
4327 "QDIO data connection isolation is activated\n");
4330 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
4331 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
4332 "deactivated\n", dev_name(&card->gdev->dev));
4334 card->options.isolation = card->options.prev_isolation;
4336 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
4337 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
4338 " activated\n", dev_name(&card->gdev->dev));
4340 card->options.isolation = card->options.prev_isolation;
4342 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
4343 dev_err(&card->gdev->dev, "Adapter does not "
4344 "support QDIO data connection isolation\n");
4346 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
4347 dev_err(&card->gdev->dev,
4348 "Adapter is dedicated. "
4349 "QDIO data connection isolation not supported\n");
4351 card->options.isolation = card->options.prev_isolation;
4353 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
4354 dev_err(&card->gdev->dev,
4355 "TSO does not permit QDIO data connection isolation\n");
4357 card->options.isolation = card->options.prev_isolation;
4359 case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED:
4360 dev_err(&card->gdev->dev, "The adjacent switch port does not "
4361 "support reflective relay mode\n");
4363 card->options.isolation = card->options.prev_isolation;
4365 case SET_ACCESS_CTRL_RC_REFLREL_FAILED:
4366 dev_err(&card->gdev->dev, "The reflective relay mode cannot be "
4367 "enabled at the adjacent switch port");
4369 card->options.isolation = card->options.prev_isolation;
4371 case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED:
4372 dev_warn(&card->gdev->dev, "Turning off reflective relay mode "
4373 "at the adjacent switch failed\n");
4376 /* this should never happen */
4378 card->options.isolation = card->options.prev_isolation;
4384 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
4385 enum qeth_ipa_isolation_modes isolation, int fallback)
4388 struct qeth_cmd_buffer *iob;
4389 struct qeth_ipa_cmd *cmd;
4390 struct qeth_set_access_ctrl *access_ctrl_req;
4392 QETH_CARD_TEXT(card, 4, "setacctl");
4394 QETH_DBF_TEXT_(SETUP, 2, "setacctl");
4395 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4397 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
4398 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4399 sizeof(struct qeth_set_access_ctrl));
4402 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4403 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4404 access_ctrl_req->subcmd_code = isolation;
4406 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
4408 QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
4412 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback)
4416 QETH_CARD_TEXT(card, 4, "setactlo");
4418 if ((card->info.type == QETH_CARD_TYPE_OSD ||
4419 card->info.type == QETH_CARD_TYPE_OSX) &&
4420 qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
4421 rc = qeth_setadpparms_set_access_ctrl(card,
4422 card->options.isolation, fallback);
4425 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4426 card->gdev->dev.kobj.name,
4430 } else if (card->options.isolation != ISOLATION_MODE_NONE) {
4431 card->options.isolation = ISOLATION_MODE_NONE;
4433 dev_err(&card->gdev->dev, "Adapter does not "
4434 "support QDIO data connection isolation\n");
4439 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
4441 void qeth_tx_timeout(struct net_device *dev)
4443 struct qeth_card *card;
4445 card = dev->ml_priv;
4446 QETH_CARD_TEXT(card, 4, "txtimeo");
4447 card->stats.tx_errors++;
4448 qeth_schedule_recovery(card);
4450 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
4452 static int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4454 struct qeth_card *card = dev->ml_priv;
4458 case MII_BMCR: /* Basic mode control register */
4460 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
4461 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4462 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4463 rc |= BMCR_SPEED100;
4465 case MII_BMSR: /* Basic mode status register */
4466 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4467 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4470 case MII_PHYSID1: /* PHYS ID 1 */
4471 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4473 rc = (rc >> 5) & 0xFFFF;
4475 case MII_PHYSID2: /* PHYS ID 2 */
4476 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4478 case MII_ADVERTISE: /* Advertisement control reg */
4481 case MII_LPA: /* Link partner ability reg */
4482 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4483 LPA_100BASE4 | LPA_LPACK;
4485 case MII_EXPANSION: /* Expansion register */
4487 case MII_DCOUNTER: /* disconnect counter */
4489 case MII_FCSCOUNTER: /* false carrier counter */
4491 case MII_NWAYTEST: /* N-way auto-neg test register */
4493 case MII_RERRCOUNTER: /* rx error counter */
4494 rc = card->stats.rx_errors;
4496 case MII_SREVISION: /* silicon revision */
4498 case MII_RESV1: /* reserved 1 */
4500 case MII_LBRERROR: /* loopback, rx, bypass error */
4502 case MII_PHYADDR: /* physical address */
4504 case MII_RESV2: /* reserved 2 */
4506 case MII_TPISTATUS: /* TPI status for 10mbps */
4508 case MII_NCONFIG: /* network interface config */
4516 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
4517 struct qeth_cmd_buffer *iob, int len,
4518 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
4524 QETH_CARD_TEXT(card, 4, "sendsnmp");
4526 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4527 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4528 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4529 /* adjust PDU length fields in IPA_PDU_HEADER */
4530 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4532 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4533 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4534 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4535 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4536 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4537 reply_cb, reply_param);
4540 static int qeth_snmp_command_cb(struct qeth_card *card,
4541 struct qeth_reply *reply, unsigned long sdata)
4543 struct qeth_ipa_cmd *cmd;
4544 struct qeth_arp_query_info *qinfo;
4545 unsigned char *data;
4549 QETH_CARD_TEXT(card, 3, "snpcmdcb");
4551 cmd = (struct qeth_ipa_cmd *) sdata;
4552 data = (unsigned char *)((char *)cmd - reply->offset);
4553 qinfo = (struct qeth_arp_query_info *) reply->param;
4555 if (cmd->hdr.return_code) {
4556 QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code);
4559 if (cmd->data.setadapterparms.hdr.return_code) {
4560 cmd->hdr.return_code =
4561 cmd->data.setadapterparms.hdr.return_code;
4562 QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code);
4565 data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
4566 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4567 snmp_data = &cmd->data.setadapterparms.data.snmp;
4568 data_len -= offsetof(struct qeth_ipa_cmd,
4569 data.setadapterparms.data.snmp);
4571 snmp_data = &cmd->data.setadapterparms.data.snmp.request;
4572 data_len -= offsetof(struct qeth_ipa_cmd,
4573 data.setadapterparms.data.snmp.request);
4576 /* check if there is enough room in userspace */
4577 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4578 QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
4579 cmd->hdr.return_code = IPA_RC_ENOMEM;
4582 QETH_CARD_TEXT_(card, 4, "snore%i",
4583 cmd->data.setadapterparms.hdr.used_total);
4584 QETH_CARD_TEXT_(card, 4, "sseqn%i",
4585 cmd->data.setadapterparms.hdr.seq_no);
4586 /*copy entries to user buffer*/
4587 memcpy(qinfo->udata + qinfo->udata_offset, snmp_data, data_len);
4588 qinfo->udata_offset += data_len;
4590 /* check if all replies received ... */
4591 QETH_CARD_TEXT_(card, 4, "srtot%i",
4592 cmd->data.setadapterparms.hdr.used_total);
4593 QETH_CARD_TEXT_(card, 4, "srseq%i",
4594 cmd->data.setadapterparms.hdr.seq_no);
4595 if (cmd->data.setadapterparms.hdr.seq_no <
4596 cmd->data.setadapterparms.hdr.used_total)
4601 static int qeth_snmp_command(struct qeth_card *card, char __user *udata)
4603 struct qeth_cmd_buffer *iob;
4604 struct qeth_ipa_cmd *cmd;
4605 struct qeth_snmp_ureq *ureq;
4606 unsigned int req_len;
4607 struct qeth_arp_query_info qinfo = {0, };
4610 QETH_CARD_TEXT(card, 3, "snmpcmd");
4612 if (card->info.guestlan)
4615 if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
4616 (!card->options.layer2)) {
4619 /* skip 4 bytes (data_len struct member) to get req_len */
4620 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4622 if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE -
4623 sizeof(struct qeth_ipacmd_hdr) -
4624 sizeof(struct qeth_ipacmd_setadpparms_hdr)))
4626 ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
4628 QETH_CARD_TEXT(card, 2, "snmpnome");
4629 return PTR_ERR(ureq);
4631 qinfo.udata_len = ureq->hdr.data_len;
4632 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
4637 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4639 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4640 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4645 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4646 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4647 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4648 qeth_snmp_command_cb, (void *)&qinfo);
4650 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4651 QETH_CARD_IFNAME(card), rc);
4653 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4662 static int qeth_setadpparms_query_oat_cb(struct qeth_card *card,
4663 struct qeth_reply *reply, unsigned long data)
4665 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
4666 struct qeth_qoat_priv *priv;
4670 QETH_CARD_TEXT(card, 3, "qoatcb");
4671 if (qeth_setadpparms_inspect_rc(cmd))
4674 priv = (struct qeth_qoat_priv *)reply->param;
4675 resdatalen = cmd->data.setadapterparms.hdr.cmdlength;
4676 resdata = (char *)data + 28;
4678 if (resdatalen > (priv->buffer_len - priv->response_len)) {
4679 cmd->hdr.return_code = IPA_RC_FFFF;
4683 memcpy((priv->buffer + priv->response_len), resdata,
4685 priv->response_len += resdatalen;
4687 if (cmd->data.setadapterparms.hdr.seq_no <
4688 cmd->data.setadapterparms.hdr.used_total)
4693 static int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
4696 struct qeth_cmd_buffer *iob;
4697 struct qeth_ipa_cmd *cmd;
4698 struct qeth_query_oat *oat_req;
4699 struct qeth_query_oat_data oat_data;
4700 struct qeth_qoat_priv priv;
4703 QETH_CARD_TEXT(card, 3, "qoatcmd");
4705 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) {
4710 if (copy_from_user(&oat_data, udata,
4711 sizeof(struct qeth_query_oat_data))) {
4716 priv.buffer_len = oat_data.buffer_len;
4717 priv.response_len = 0;
4718 priv.buffer = vzalloc(oat_data.buffer_len);
4724 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT,
4725 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4726 sizeof(struct qeth_query_oat));
4731 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4732 oat_req = &cmd->data.setadapterparms.data.query_oat;
4733 oat_req->subcmd_code = oat_data.command;
4735 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb,
4738 if (is_compat_task())
4739 tmp = compat_ptr(oat_data.ptr);
4741 tmp = (void __user *)(unsigned long)oat_data.ptr;
4743 if (copy_to_user(tmp, priv.buffer,
4744 priv.response_len)) {
4749 oat_data.response_len = priv.response_len;
4751 if (copy_to_user(udata, &oat_data,
4752 sizeof(struct qeth_query_oat_data)))
4755 if (rc == IPA_RC_FFFF)
4764 static int qeth_query_card_info_cb(struct qeth_card *card,
4765 struct qeth_reply *reply, unsigned long data)
4767 struct carrier_info *carrier_info = (struct carrier_info *)reply->param;
4768 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data;
4769 struct qeth_query_card_info *card_info;
4771 QETH_CARD_TEXT(card, 2, "qcrdincb");
4772 if (qeth_setadpparms_inspect_rc(cmd))
4775 card_info = &cmd->data.setadapterparms.data.card_info;
4776 carrier_info->card_type = card_info->card_type;
4777 carrier_info->port_mode = card_info->port_mode;
4778 carrier_info->port_speed = card_info->port_speed;
4782 static int qeth_query_card_info(struct qeth_card *card,
4783 struct carrier_info *carrier_info)
4785 struct qeth_cmd_buffer *iob;
4787 QETH_CARD_TEXT(card, 2, "qcrdinfo");
4788 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO))
4790 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO,
4791 sizeof(struct qeth_ipacmd_setadpparms_hdr));
4794 return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb,
4795 (void *)carrier_info);
4799 * qeth_vm_request_mac() - Request a hypervisor-managed MAC address
4800 * @card: pointer to a qeth_card
4803 * 0, if a MAC address has been set for the card's netdevice
4804 * a return code, for various error conditions
4806 int qeth_vm_request_mac(struct qeth_card *card)
4808 struct diag26c_mac_resp *response;
4809 struct diag26c_mac_req *request;
4810 struct ccw_dev_id id;
4813 QETH_DBF_TEXT(SETUP, 2, "vmreqmac");
4818 request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA);
4819 response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA);
4820 if (!request || !response) {
4825 ccw_device_get_id(CARD_DDEV(card), &id);
4826 request->resp_buf_len = sizeof(*response);
4827 request->resp_version = DIAG26C_VERSION2;
4828 request->op_code = DIAG26C_GET_MAC;
4829 request->devno = id.devno;
4831 rc = diag26c(request, response, DIAG26C_MAC_SERVICES);
4835 if (request->resp_buf_len < sizeof(*response) ||
4836 response->version != request->resp_version) {
4838 QETH_DBF_TEXT(SETUP, 2, "badresp");
4839 QETH_DBF_HEX(SETUP, 2, &request->resp_buf_len,
4840 sizeof(request->resp_buf_len));
4841 } else if (!is_valid_ether_addr(response->mac)) {
4843 QETH_DBF_TEXT(SETUP, 2, "badmac");
4844 QETH_DBF_HEX(SETUP, 2, response->mac, ETH_ALEN);
4846 ether_addr_copy(card->dev->dev_addr, response->mac);
4854 EXPORT_SYMBOL_GPL(qeth_vm_request_mac);
4856 static int qeth_get_qdio_q_format(struct qeth_card *card)
4858 if (card->info.type == QETH_CARD_TYPE_IQD)
4859 return QDIO_IQDIO_QFMT;
4861 return QDIO_QETH_QFMT;
4864 static void qeth_determine_capabilities(struct qeth_card *card)
4869 struct ccw_device *ddev;
4870 int ddev_offline = 0;
4872 QETH_DBF_TEXT(SETUP, 2, "detcapab");
4873 ddev = CARD_DDEV(card);
4874 if (!ddev->online) {
4876 rc = ccw_device_set_online(ddev);
4878 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4883 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
4885 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4886 dev_name(&card->gdev->dev), rc);
4887 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4890 qeth_configure_unitaddr(card, prcd);
4892 qeth_configure_blkt_default(card, prcd);
4895 rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
4897 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4899 QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt);
4900 QETH_DBF_TEXT_(SETUP, 2, "ac1:%02x", card->ssqd.qdioac1);
4901 QETH_DBF_TEXT_(SETUP, 2, "ac2:%04x", card->ssqd.qdioac2);
4902 QETH_DBF_TEXT_(SETUP, 2, "ac3:%04x", card->ssqd.qdioac3);
4903 QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt);
4904 if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) ||
4905 ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) ||
4906 ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) {
4907 dev_info(&card->gdev->dev,
4908 "Completion Queueing supported\n");
4910 card->options.cq = QETH_CQ_NOTAVAILABLE;
4915 if (ddev_offline == 1)
4916 ccw_device_set_offline(ddev);
4921 static void qeth_qdio_establish_cq(struct qeth_card *card,
4922 struct qdio_buffer **in_sbal_ptrs,
4923 void (**queue_start_poll)
4924 (struct ccw_device *, int,
4929 if (card->options.cq == QETH_CQ_ENABLED) {
4930 int offset = QDIO_MAX_BUFFERS_PER_Q *
4931 (card->qdio.no_in_queues - 1);
4932 i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1);
4933 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4934 in_sbal_ptrs[offset + i] = (struct qdio_buffer *)
4935 virt_to_phys(card->qdio.c_q->bufs[i].buffer);
4938 queue_start_poll[card->qdio.no_in_queues - 1] = NULL;
4942 static int qeth_qdio_establish(struct qeth_card *card)
4944 struct qdio_initialize init_data;
4945 char *qib_param_field;
4946 struct qdio_buffer **in_sbal_ptrs;
4947 void (**queue_start_poll) (struct ccw_device *, int, unsigned long);
4948 struct qdio_buffer **out_sbal_ptrs;
4952 QETH_DBF_TEXT(SETUP, 2, "qdioest");
4954 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
4956 if (!qib_param_field) {
4958 goto out_free_nothing;
4961 qeth_create_qib_param_field(card, qib_param_field);
4962 qeth_create_qib_param_field_blkt(card, qib_param_field);
4964 in_sbal_ptrs = kzalloc(card->qdio.no_in_queues *
4965 QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
4967 if (!in_sbal_ptrs) {
4969 goto out_free_qib_param;
4971 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4972 in_sbal_ptrs[i] = (struct qdio_buffer *)
4973 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
4976 queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues,
4978 if (!queue_start_poll) {
4980 goto out_free_in_sbals;
4982 for (i = 0; i < card->qdio.no_in_queues; ++i)
4983 queue_start_poll[i] = card->discipline->start_poll;
4985 qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
4988 kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
4989 sizeof(void *), GFP_KERNEL);
4990 if (!out_sbal_ptrs) {
4992 goto out_free_queue_start_poll;
4994 for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
4995 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
4996 out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
4997 card->qdio.out_qs[i]->bufs[j]->buffer);
5000 memset(&init_data, 0, sizeof(struct qdio_initialize));
5001 init_data.cdev = CARD_DDEV(card);
5002 init_data.q_format = qeth_get_qdio_q_format(card);
5003 init_data.qib_param_field_format = 0;
5004 init_data.qib_param_field = qib_param_field;
5005 init_data.no_input_qs = card->qdio.no_in_queues;
5006 init_data.no_output_qs = card->qdio.no_out_queues;
5007 init_data.input_handler = card->discipline->input_handler;
5008 init_data.output_handler = card->discipline->output_handler;
5009 init_data.queue_start_poll_array = queue_start_poll;
5010 init_data.int_parm = (unsigned long) card;
5011 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
5012 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
5013 init_data.output_sbal_state_array = card->qdio.out_bufstates;
5014 init_data.scan_threshold =
5015 (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32;
5017 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
5018 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
5019 rc = qdio_allocate(&init_data);
5021 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
5024 rc = qdio_establish(&init_data);
5026 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
5027 qdio_free(CARD_DDEV(card));
5031 switch (card->options.cq) {
5032 case QETH_CQ_ENABLED:
5033 dev_info(&card->gdev->dev, "Completion Queue support enabled");
5035 case QETH_CQ_DISABLED:
5036 dev_info(&card->gdev->dev, "Completion Queue support disabled");
5042 kfree(out_sbal_ptrs);
5043 out_free_queue_start_poll:
5044 kfree(queue_start_poll);
5046 kfree(in_sbal_ptrs);
5048 kfree(qib_param_field);
5053 static void qeth_core_free_card(struct qeth_card *card)
5056 QETH_DBF_TEXT(SETUP, 2, "freecrd");
5057 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
5058 qeth_clean_channel(&card->read);
5059 qeth_clean_channel(&card->write);
5060 qeth_free_qdio_buffers(card);
5061 unregister_service_level(&card->qeth_service_level);
5065 void qeth_trace_features(struct qeth_card *card)
5067 QETH_CARD_TEXT(card, 2, "features");
5068 QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4));
5069 QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6));
5070 QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp));
5071 QETH_CARD_HEX(card, 2, &card->info.diagass_support,
5072 sizeof(card->info.diagass_support));
5074 EXPORT_SYMBOL_GPL(qeth_trace_features);
5076 static struct ccw_device_id qeth_ids[] = {
5077 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
5078 .driver_info = QETH_CARD_TYPE_OSD},
5079 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
5080 .driver_info = QETH_CARD_TYPE_IQD},
5081 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
5082 .driver_info = QETH_CARD_TYPE_OSN},
5083 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
5084 .driver_info = QETH_CARD_TYPE_OSM},
5085 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
5086 .driver_info = QETH_CARD_TYPE_OSX},
5089 MODULE_DEVICE_TABLE(ccw, qeth_ids);
5091 static struct ccw_driver qeth_ccw_driver = {
5093 .owner = THIS_MODULE,
5097 .probe = ccwgroup_probe_ccwdev,
5098 .remove = ccwgroup_remove_ccwdev,
5101 int qeth_core_hardsetup_card(struct qeth_card *card)
5106 QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
5107 atomic_set(&card->force_alloc_skb, 0);
5108 qeth_update_from_chp_desc(card);
5111 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
5112 dev_name(&card->gdev->dev));
5113 rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
5114 ccw_device_set_offline(CARD_DDEV(card));
5115 ccw_device_set_offline(CARD_WDEV(card));
5116 ccw_device_set_offline(CARD_RDEV(card));
5117 qdio_free(CARD_DDEV(card));
5118 rc = ccw_device_set_online(CARD_RDEV(card));
5121 rc = ccw_device_set_online(CARD_WDEV(card));
5124 rc = ccw_device_set_online(CARD_DDEV(card));
5128 if (rc == -ERESTARTSYS) {
5129 QETH_DBF_TEXT(SETUP, 2, "break1");
5132 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
5138 qeth_determine_capabilities(card);
5139 qeth_init_tokens(card);
5140 qeth_init_func_level(card);
5141 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
5142 if (rc == -ERESTARTSYS) {
5143 QETH_DBF_TEXT(SETUP, 2, "break2");
5146 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
5152 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
5153 if (rc == -ERESTARTSYS) {
5154 QETH_DBF_TEXT(SETUP, 2, "break3");
5157 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
5163 card->read_or_write_problem = 0;
5164 rc = qeth_mpc_initialize(card);
5166 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
5170 rc = qeth_send_startlan(card);
5172 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
5173 if (rc == IPA_RC_LAN_OFFLINE) {
5174 dev_warn(&card->gdev->dev,
5175 "The LAN is offline\n");
5176 card->lan_online = 0;
5182 card->lan_online = 1;
5184 card->options.ipa4.supported_funcs = 0;
5185 card->options.ipa6.supported_funcs = 0;
5186 card->options.adp.supported_funcs = 0;
5187 card->options.sbp.supported_funcs = 0;
5188 card->info.diagass_support = 0;
5189 rc = qeth_query_ipassists(card, QETH_PROT_IPV4);
5192 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
5193 rc = qeth_query_setadapterparms(card);
5195 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
5199 if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
5200 rc = qeth_query_setdiagass(card);
5202 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
5208 dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
5209 "an error on the device\n");
5210 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
5211 dev_name(&card->gdev->dev), rc);
5214 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
5216 static int qeth_create_skb_frag(struct qeth_qdio_buffer *qethbuffer,
5217 struct qdio_buffer_element *element,
5218 struct sk_buff **pskb, int offset, int *pfrag,
5221 struct page *page = virt_to_page(element->addr);
5222 if (*pskb == NULL) {
5223 if (qethbuffer->rx_skb) {
5224 /* only if qeth_card.options.cq == QETH_CQ_ENABLED */
5225 *pskb = qethbuffer->rx_skb;
5226 qethbuffer->rx_skb = NULL;
5228 *pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
5233 skb_reserve(*pskb, ETH_HLEN);
5234 if (data_len <= QETH_RX_PULL_LEN) {
5235 skb_put_data(*pskb, element->addr + offset, data_len);
5238 skb_put_data(*pskb, element->addr + offset,
5240 skb_fill_page_desc(*pskb, *pfrag, page,
5241 offset + QETH_RX_PULL_LEN,
5242 data_len - QETH_RX_PULL_LEN);
5243 (*pskb)->data_len += data_len - QETH_RX_PULL_LEN;
5244 (*pskb)->len += data_len - QETH_RX_PULL_LEN;
5245 (*pskb)->truesize += data_len - QETH_RX_PULL_LEN;
5250 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
5251 (*pskb)->data_len += data_len;
5252 (*pskb)->len += data_len;
5253 (*pskb)->truesize += data_len;
5261 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
5263 return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
5266 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
5267 struct qeth_qdio_buffer *qethbuffer,
5268 struct qdio_buffer_element **__element, int *__offset,
5269 struct qeth_hdr **hdr)
5271 struct qdio_buffer_element *element = *__element;
5272 struct qdio_buffer *buffer = qethbuffer->buffer;
5273 int offset = *__offset;
5274 struct sk_buff *skb = NULL;
5282 /* qeth_hdr must not cross element boundaries */
5283 if (element->length < offset + sizeof(struct qeth_hdr)) {
5284 if (qeth_is_last_sbale(element))
5288 if (element->length < sizeof(struct qeth_hdr))
5291 *hdr = element->addr + offset;
5293 offset += sizeof(struct qeth_hdr);
5294 switch ((*hdr)->hdr.l2.id) {
5295 case QETH_HEADER_TYPE_LAYER2:
5296 skb_len = (*hdr)->hdr.l2.pkt_length;
5298 case QETH_HEADER_TYPE_LAYER3:
5299 skb_len = (*hdr)->hdr.l3.length;
5300 headroom = ETH_HLEN;
5302 case QETH_HEADER_TYPE_OSN:
5303 skb_len = (*hdr)->hdr.osn.pdu_length;
5304 headroom = sizeof(struct qeth_hdr);
5313 if (((skb_len >= card->options.rx_sg_cb) &&
5314 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
5315 (!atomic_read(&card->force_alloc_skb))) ||
5316 (card->options.cq == QETH_CQ_ENABLED)) {
5319 skb = dev_alloc_skb(skb_len + headroom);
5323 skb_reserve(skb, headroom);
5326 data_ptr = element->addr + offset;
5328 data_len = min(skb_len, (int)(element->length - offset));
5331 if (qeth_create_skb_frag(qethbuffer, element,
5332 &skb, offset, &frag, data_len))
5335 skb_put_data(skb, data_ptr, data_len);
5338 skb_len -= data_len;
5340 if (qeth_is_last_sbale(element)) {
5341 QETH_CARD_TEXT(card, 4, "unexeob");
5342 QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
5343 dev_kfree_skb_any(skb);
5344 card->stats.rx_errors++;
5349 data_ptr = element->addr;
5354 *__element = element;
5356 if (use_rx_sg && card->options.performance_stats) {
5357 card->perf_stats.sg_skbs_rx++;
5358 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
5362 if (net_ratelimit()) {
5363 QETH_CARD_TEXT(card, 2, "noskbmem");
5365 card->stats.rx_dropped++;
5368 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
5370 int qeth_poll(struct napi_struct *napi, int budget)
5372 struct qeth_card *card = container_of(napi, struct qeth_card, napi);
5374 struct qeth_qdio_buffer *buffer;
5376 int new_budget = budget;
5378 if (card->options.performance_stats) {
5379 card->perf_stats.inbound_cnt++;
5380 card->perf_stats.inbound_start_time = qeth_get_micros();
5384 if (!card->rx.b_count) {
5385 card->rx.qdio_err = 0;
5386 card->rx.b_count = qdio_get_next_buffers(
5387 card->data.ccwdev, 0, &card->rx.b_index,
5388 &card->rx.qdio_err);
5389 if (card->rx.b_count <= 0) {
5390 card->rx.b_count = 0;
5393 card->rx.b_element =
5394 &card->qdio.in_q->bufs[card->rx.b_index]
5395 .buffer->element[0];
5396 card->rx.e_offset = 0;
5399 while (card->rx.b_count) {
5400 buffer = &card->qdio.in_q->bufs[card->rx.b_index];
5401 if (!(card->rx.qdio_err &&
5402 qeth_check_qdio_errors(card, buffer->buffer,
5403 card->rx.qdio_err, "qinerr")))
5405 card->discipline->process_rx_buffer(
5406 card, new_budget, &done);
5411 if (card->options.performance_stats)
5412 card->perf_stats.bufs_rec++;
5413 qeth_put_buffer_pool_entry(card,
5414 buffer->pool_entry);
5415 qeth_queue_input_buffer(card, card->rx.b_index);
5417 if (card->rx.b_count) {
5419 (card->rx.b_index + 1) %
5420 QDIO_MAX_BUFFERS_PER_Q;
5421 card->rx.b_element =
5423 ->bufs[card->rx.b_index]
5424 .buffer->element[0];
5425 card->rx.e_offset = 0;
5429 if (work_done >= budget)
5432 new_budget = budget - work_done;
5436 napi_complete(napi);
5437 if (qdio_start_irq(card->data.ccwdev, 0))
5438 napi_schedule(&card->napi);
5440 if (card->options.performance_stats)
5441 card->perf_stats.inbound_time += qeth_get_micros() -
5442 card->perf_stats.inbound_start_time;
5445 EXPORT_SYMBOL_GPL(qeth_poll);
5447 static int qeth_setassparms_inspect_rc(struct qeth_ipa_cmd *cmd)
5449 if (!cmd->hdr.return_code)
5450 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5451 return cmd->hdr.return_code;
5454 int qeth_setassparms_cb(struct qeth_card *card,
5455 struct qeth_reply *reply, unsigned long data)
5457 struct qeth_ipa_cmd *cmd;
5459 QETH_CARD_TEXT(card, 4, "defadpcb");
5461 cmd = (struct qeth_ipa_cmd *) data;
5462 if (cmd->hdr.return_code == 0) {
5463 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5464 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
5465 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5466 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
5467 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5471 EXPORT_SYMBOL_GPL(qeth_setassparms_cb);
5473 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
5474 enum qeth_ipa_funcs ipa_func,
5475 __u16 cmd_code, __u16 len,
5476 enum qeth_prot_versions prot)
5478 struct qeth_cmd_buffer *iob;
5479 struct qeth_ipa_cmd *cmd;
5481 QETH_CARD_TEXT(card, 4, "getasscm");
5482 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
5485 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5486 cmd->data.setassparms.hdr.assist_no = ipa_func;
5487 cmd->data.setassparms.hdr.length = 8 + len;
5488 cmd->data.setassparms.hdr.command_code = cmd_code;
5489 cmd->data.setassparms.hdr.return_code = 0;
5490 cmd->data.setassparms.hdr.seq_no = 0;
5495 EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd);
5497 int qeth_send_setassparms(struct qeth_card *card,
5498 struct qeth_cmd_buffer *iob, __u16 len, long data,
5499 int (*reply_cb)(struct qeth_card *,
5500 struct qeth_reply *, unsigned long),
5504 struct qeth_ipa_cmd *cmd;
5506 QETH_CARD_TEXT(card, 4, "sendassp");
5508 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5509 if (len <= sizeof(__u32))
5510 cmd->data.setassparms.data.flags_32bit = (__u32) data;
5511 else /* (len > sizeof(__u32)) */
5512 memcpy(&cmd->data.setassparms.data, (void *) data, len);
5514 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
5517 EXPORT_SYMBOL_GPL(qeth_send_setassparms);
5519 int qeth_send_simple_setassparms(struct qeth_card *card,
5520 enum qeth_ipa_funcs ipa_func,
5521 __u16 cmd_code, long data)
5525 struct qeth_cmd_buffer *iob;
5527 QETH_CARD_TEXT(card, 4, "simassp4");
5529 length = sizeof(__u32);
5530 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5531 length, QETH_PROT_IPV4);
5534 rc = qeth_send_setassparms(card, iob, length, data,
5535 qeth_setassparms_cb, NULL);
5538 EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms);
5540 static void qeth_unregister_dbf_views(void)
5543 for (x = 0; x < QETH_DBF_INFOS; x++) {
5544 debug_unregister(qeth_dbf[x].id);
5545 qeth_dbf[x].id = NULL;
5549 void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
5551 char dbf_txt_buf[32];
5554 if (!debug_level_enabled(id, level))
5556 va_start(args, fmt);
5557 vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
5559 debug_text_event(id, level, dbf_txt_buf);
5561 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
5563 static int qeth_register_dbf_views(void)
5568 for (x = 0; x < QETH_DBF_INFOS; x++) {
5569 /* register the areas */
5570 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
5574 if (qeth_dbf[x].id == NULL) {
5575 qeth_unregister_dbf_views();
5579 /* register a view */
5580 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
5582 qeth_unregister_dbf_views();
5586 /* set a passing level */
5587 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
5593 int qeth_core_load_discipline(struct qeth_card *card,
5594 enum qeth_discipline_id discipline)
5598 mutex_lock(&qeth_mod_mutex);
5599 switch (discipline) {
5600 case QETH_DISCIPLINE_LAYER3:
5601 card->discipline = try_then_request_module(
5602 symbol_get(qeth_l3_discipline), "qeth_l3");
5604 case QETH_DISCIPLINE_LAYER2:
5605 card->discipline = try_then_request_module(
5606 symbol_get(qeth_l2_discipline), "qeth_l2");
5612 if (!card->discipline) {
5613 dev_err(&card->gdev->dev, "There is no kernel module to "
5614 "support discipline %d\n", discipline);
5617 mutex_unlock(&qeth_mod_mutex);
5621 void qeth_core_free_discipline(struct qeth_card *card)
5623 if (card->options.layer2)
5624 symbol_put(qeth_l2_discipline);
5626 symbol_put(qeth_l3_discipline);
5627 card->discipline = NULL;
5630 const struct device_type qeth_generic_devtype = {
5631 .name = "qeth_generic",
5632 .groups = qeth_generic_attr_groups,
5634 EXPORT_SYMBOL_GPL(qeth_generic_devtype);
5636 static const struct device_type qeth_osn_devtype = {
5638 .groups = qeth_osn_attr_groups,
5641 #define DBF_NAME_LEN 20
5643 struct qeth_dbf_entry {
5644 char dbf_name[DBF_NAME_LEN];
5645 debug_info_t *dbf_info;
5646 struct list_head dbf_list;
5649 static LIST_HEAD(qeth_dbf_list);
5650 static DEFINE_MUTEX(qeth_dbf_list_mutex);
5652 static debug_info_t *qeth_get_dbf_entry(char *name)
5654 struct qeth_dbf_entry *entry;
5655 debug_info_t *rc = NULL;
5657 mutex_lock(&qeth_dbf_list_mutex);
5658 list_for_each_entry(entry, &qeth_dbf_list, dbf_list) {
5659 if (strcmp(entry->dbf_name, name) == 0) {
5660 rc = entry->dbf_info;
5664 mutex_unlock(&qeth_dbf_list_mutex);
5668 static int qeth_add_dbf_entry(struct qeth_card *card, char *name)
5670 struct qeth_dbf_entry *new_entry;
5672 card->debug = debug_register(name, 2, 1, 8);
5674 QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
5677 if (debug_register_view(card->debug, &debug_hex_ascii_view))
5679 new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL);
5682 strncpy(new_entry->dbf_name, name, DBF_NAME_LEN);
5683 new_entry->dbf_info = card->debug;
5684 mutex_lock(&qeth_dbf_list_mutex);
5685 list_add(&new_entry->dbf_list, &qeth_dbf_list);
5686 mutex_unlock(&qeth_dbf_list_mutex);
5691 debug_unregister(card->debug);
5696 static void qeth_clear_dbf_list(void)
5698 struct qeth_dbf_entry *entry, *tmp;
5700 mutex_lock(&qeth_dbf_list_mutex);
5701 list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) {
5702 list_del(&entry->dbf_list);
5703 debug_unregister(entry->dbf_info);
5706 mutex_unlock(&qeth_dbf_list_mutex);
5709 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
5711 struct qeth_card *card;
5714 enum qeth_discipline_id enforced_disc;
5715 unsigned long flags;
5716 char dbf_name[DBF_NAME_LEN];
5718 QETH_DBF_TEXT(SETUP, 2, "probedev");
5721 if (!get_device(dev))
5724 QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
5726 card = qeth_alloc_card();
5728 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
5733 snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
5734 dev_name(&gdev->dev));
5735 card->debug = qeth_get_dbf_entry(dbf_name);
5737 rc = qeth_add_dbf_entry(card, dbf_name);
5742 card->read.ccwdev = gdev->cdev[0];
5743 card->write.ccwdev = gdev->cdev[1];
5744 card->data.ccwdev = gdev->cdev[2];
5745 dev_set_drvdata(&gdev->dev, card);
5747 gdev->cdev[0]->handler = qeth_irq;
5748 gdev->cdev[1]->handler = qeth_irq;
5749 gdev->cdev[2]->handler = qeth_irq;
5751 rc = qeth_determine_card_type(card);
5753 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
5756 rc = qeth_setup_card(card);
5758 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
5762 qeth_determine_capabilities(card);
5763 enforced_disc = qeth_enforce_discipline(card);
5764 switch (enforced_disc) {
5765 case QETH_DISCIPLINE_UNDETERMINED:
5766 gdev->dev.type = &qeth_generic_devtype;
5769 card->info.layer_enforced = true;
5770 rc = qeth_core_load_discipline(card, enforced_disc);
5774 gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN)
5775 ? card->discipline->devtype
5776 : &qeth_osn_devtype;
5777 rc = card->discipline->setup(card->gdev);
5783 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5784 list_add_tail(&card->list, &qeth_core_card_list.list);
5785 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5789 qeth_core_free_discipline(card);
5791 qeth_core_free_card(card);
5797 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
5799 unsigned long flags;
5800 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5802 QETH_DBF_TEXT(SETUP, 2, "removedv");
5804 if (card->discipline) {
5805 card->discipline->remove(gdev);
5806 qeth_core_free_discipline(card);
5809 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5810 list_del(&card->list);
5811 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5812 qeth_core_free_card(card);
5813 dev_set_drvdata(&gdev->dev, NULL);
5814 put_device(&gdev->dev);
5818 static int qeth_core_set_online(struct ccwgroup_device *gdev)
5820 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5822 enum qeth_discipline_id def_discipline;
5824 if (!card->discipline) {
5825 if (card->info.type == QETH_CARD_TYPE_IQD)
5826 def_discipline = QETH_DISCIPLINE_LAYER3;
5828 def_discipline = QETH_DISCIPLINE_LAYER2;
5829 rc = qeth_core_load_discipline(card, def_discipline);
5832 rc = card->discipline->setup(card->gdev);
5834 qeth_core_free_discipline(card);
5838 rc = card->discipline->set_online(gdev);
5843 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
5845 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5846 return card->discipline->set_offline(gdev);
5849 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
5851 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5852 qeth_set_allowed_threads(card, 0, 1);
5853 if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap)
5854 qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
5855 qeth_qdio_clear_card(card, 0);
5856 qeth_clear_qdio_buffers(card);
5857 qdio_free(CARD_DDEV(card));
5860 static int qeth_core_freeze(struct ccwgroup_device *gdev)
5862 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5863 if (card->discipline && card->discipline->freeze)
5864 return card->discipline->freeze(gdev);
5868 static int qeth_core_thaw(struct ccwgroup_device *gdev)
5870 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5871 if (card->discipline && card->discipline->thaw)
5872 return card->discipline->thaw(gdev);
5876 static int qeth_core_restore(struct ccwgroup_device *gdev)
5878 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5879 if (card->discipline && card->discipline->restore)
5880 return card->discipline->restore(gdev);
5884 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
5886 .owner = THIS_MODULE,
5889 .setup = qeth_core_probe_device,
5890 .remove = qeth_core_remove_device,
5891 .set_online = qeth_core_set_online,
5892 .set_offline = qeth_core_set_offline,
5893 .shutdown = qeth_core_shutdown,
5896 .freeze = qeth_core_freeze,
5897 .thaw = qeth_core_thaw,
5898 .restore = qeth_core_restore,
5901 static ssize_t group_store(struct device_driver *ddrv, const char *buf,
5906 err = ccwgroup_create_dev(qeth_core_root_dev,
5907 &qeth_core_ccwgroup_driver, 3, buf);
5909 return err ? err : count;
5911 static DRIVER_ATTR_WO(group);
5913 static struct attribute *qeth_drv_attrs[] = {
5914 &driver_attr_group.attr,
5917 static struct attribute_group qeth_drv_attr_group = {
5918 .attrs = qeth_drv_attrs,
5920 static const struct attribute_group *qeth_drv_attr_groups[] = {
5921 &qeth_drv_attr_group,
5925 int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5927 struct qeth_card *card = dev->ml_priv;
5928 struct mii_ioctl_data *mii_data;
5934 if (!qeth_card_hw_is_reachable(card))
5937 if (card->info.type == QETH_CARD_TYPE_OSN)
5941 case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5942 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5944 case SIOC_QETH_GET_CARD_TYPE:
5945 if ((card->info.type == QETH_CARD_TYPE_OSD ||
5946 card->info.type == QETH_CARD_TYPE_OSM ||
5947 card->info.type == QETH_CARD_TYPE_OSX) &&
5948 !card->info.guestlan)
5953 mii_data = if_mii(rq);
5954 mii_data->phy_id = 0;
5957 mii_data = if_mii(rq);
5958 if (mii_data->phy_id != 0)
5961 mii_data->val_out = qeth_mdio_read(dev,
5962 mii_data->phy_id, mii_data->reg_num);
5964 case SIOC_QETH_QUERY_OAT:
5965 rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
5968 if (card->discipline->do_ioctl)
5969 rc = card->discipline->do_ioctl(dev, rq, cmd);
5974 QETH_CARD_TEXT_(card, 2, "ioce%x", rc);
5977 EXPORT_SYMBOL_GPL(qeth_do_ioctl);
5980 const char str[ETH_GSTRING_LEN];
5981 } qeth_ethtool_stats_keys[] = {
5986 {"tx skbs no packing"},
5987 {"tx buffers no packing"},
5988 {"tx skbs packing"},
5989 {"tx buffers packing"},
5992 /* 10 */{"rx sg skbs"},
5994 {"rx sg page allocs"},
5995 {"tx large kbytes"},
5997 {"tx pk state ch n->p"},
5998 {"tx pk state ch p->n"},
5999 {"tx pk watermark low"},
6000 {"tx pk watermark high"},
6001 {"queue 0 buffer usage"},
6002 /* 20 */{"queue 1 buffer usage"},
6003 {"queue 2 buffer usage"},
6004 {"queue 3 buffer usage"},
6007 {"rx do_QDIO time"},
6008 {"rx do_QDIO count"},
6009 {"tx handler time"},
6010 {"tx handler count"},
6012 /* 30 */{"tx count"},
6013 {"tx do_QDIO time"},
6014 {"tx do_QDIO count"},
6018 {"cq handler count"},
6022 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
6024 switch (stringset) {
6026 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
6031 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
6033 void qeth_core_get_ethtool_stats(struct net_device *dev,
6034 struct ethtool_stats *stats, u64 *data)
6036 struct qeth_card *card = dev->ml_priv;
6037 data[0] = card->stats.rx_packets -
6038 card->perf_stats.initial_rx_packets;
6039 data[1] = card->perf_stats.bufs_rec;
6040 data[2] = card->stats.tx_packets -
6041 card->perf_stats.initial_tx_packets;
6042 data[3] = card->perf_stats.bufs_sent;
6043 data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
6044 - card->perf_stats.skbs_sent_pack;
6045 data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
6046 data[6] = card->perf_stats.skbs_sent_pack;
6047 data[7] = card->perf_stats.bufs_sent_pack;
6048 data[8] = card->perf_stats.sg_skbs_sent;
6049 data[9] = card->perf_stats.sg_frags_sent;
6050 data[10] = card->perf_stats.sg_skbs_rx;
6051 data[11] = card->perf_stats.sg_frags_rx;
6052 data[12] = card->perf_stats.sg_alloc_page_rx;
6053 data[13] = (card->perf_stats.large_send_bytes >> 10);
6054 data[14] = card->perf_stats.large_send_cnt;
6055 data[15] = card->perf_stats.sc_dp_p;
6056 data[16] = card->perf_stats.sc_p_dp;
6057 data[17] = QETH_LOW_WATERMARK_PACK;
6058 data[18] = QETH_HIGH_WATERMARK_PACK;
6059 data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
6060 data[20] = (card->qdio.no_out_queues > 1) ?
6061 atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
6062 data[21] = (card->qdio.no_out_queues > 2) ?
6063 atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
6064 data[22] = (card->qdio.no_out_queues > 3) ?
6065 atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
6066 data[23] = card->perf_stats.inbound_time;
6067 data[24] = card->perf_stats.inbound_cnt;
6068 data[25] = card->perf_stats.inbound_do_qdio_time;
6069 data[26] = card->perf_stats.inbound_do_qdio_cnt;
6070 data[27] = card->perf_stats.outbound_handler_time;
6071 data[28] = card->perf_stats.outbound_handler_cnt;
6072 data[29] = card->perf_stats.outbound_time;
6073 data[30] = card->perf_stats.outbound_cnt;
6074 data[31] = card->perf_stats.outbound_do_qdio_time;
6075 data[32] = card->perf_stats.outbound_do_qdio_cnt;
6076 data[33] = card->perf_stats.tx_csum;
6077 data[34] = card->perf_stats.tx_lin;
6078 data[35] = card->perf_stats.tx_linfail;
6079 data[36] = card->perf_stats.cq_cnt;
6080 data[37] = card->perf_stats.cq_time;
6082 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
6084 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
6086 switch (stringset) {
6088 memcpy(data, &qeth_ethtool_stats_keys,
6089 sizeof(qeth_ethtool_stats_keys));
6096 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
6098 void qeth_core_get_drvinfo(struct net_device *dev,
6099 struct ethtool_drvinfo *info)
6101 struct qeth_card *card = dev->ml_priv;
6103 strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
6104 sizeof(info->driver));
6105 strlcpy(info->version, "1.0", sizeof(info->version));
6106 strlcpy(info->fw_version, card->info.mcl_level,
6107 sizeof(info->fw_version));
6108 snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
6109 CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
6111 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
6113 /* Helper function to fill 'advertising' and 'supported' which are the same. */
6114 /* Autoneg and full-duplex are supported and advertised unconditionally. */
6115 /* Always advertise and support all speeds up to specified, and only one */
6116 /* specified port type. */
6117 static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings *cmd,
6118 int maxspeed, int porttype)
6120 ethtool_link_ksettings_zero_link_mode(cmd, supported);
6121 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
6122 ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising);
6124 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
6125 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
6129 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
6130 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
6133 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
6134 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
6137 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
6138 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
6142 /* fallthrough from high to low, to select all legal speeds: */
6145 ethtool_link_ksettings_add_link_mode(cmd, supported,
6147 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6150 ethtool_link_ksettings_add_link_mode(cmd, supported,
6152 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6154 ethtool_link_ksettings_add_link_mode(cmd, supported,
6156 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6159 ethtool_link_ksettings_add_link_mode(cmd, supported,
6161 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6163 ethtool_link_ksettings_add_link_mode(cmd, supported,
6165 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6168 ethtool_link_ksettings_add_link_mode(cmd, supported,
6170 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6172 ethtool_link_ksettings_add_link_mode(cmd, supported,
6174 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6176 /* end fallthrough */
6179 ethtool_link_ksettings_add_link_mode(cmd, supported,
6181 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6183 ethtool_link_ksettings_add_link_mode(cmd, supported,
6185 ethtool_link_ksettings_add_link_mode(cmd, advertising,
6191 int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev,
6192 struct ethtool_link_ksettings *cmd)
6194 struct qeth_card *card = netdev->ml_priv;
6195 enum qeth_link_types link_type;
6196 struct carrier_info carrier_info;
6199 if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
6200 link_type = QETH_LINK_TYPE_10GBIT_ETH;
6202 link_type = card->info.link_type;
6204 cmd->base.duplex = DUPLEX_FULL;
6205 cmd->base.autoneg = AUTONEG_ENABLE;
6206 cmd->base.phy_address = 0;
6207 cmd->base.mdio_support = 0;
6208 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
6209 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
6211 switch (link_type) {
6212 case QETH_LINK_TYPE_FAST_ETH:
6213 case QETH_LINK_TYPE_LANE_ETH100:
6214 cmd->base.speed = SPEED_100;
6215 cmd->base.port = PORT_TP;
6217 case QETH_LINK_TYPE_GBIT_ETH:
6218 case QETH_LINK_TYPE_LANE_ETH1000:
6219 cmd->base.speed = SPEED_1000;
6220 cmd->base.port = PORT_FIBRE;
6222 case QETH_LINK_TYPE_10GBIT_ETH:
6223 cmd->base.speed = SPEED_10000;
6224 cmd->base.port = PORT_FIBRE;
6227 cmd->base.speed = SPEED_10;
6228 cmd->base.port = PORT_TP;
6230 qeth_set_cmd_adv_sup(cmd, cmd->base.speed, cmd->base.port);
6232 /* Check if we can obtain more accurate information. */
6233 /* If QUERY_CARD_INFO command is not supported or fails, */
6234 /* just return the heuristics that was filled above. */
6235 if (!qeth_card_hw_is_reachable(card))
6237 rc = qeth_query_card_info(card, &carrier_info);
6238 if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */
6240 if (rc) /* report error from the hardware operation */
6242 /* on success, fill in the information got from the hardware */
6245 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
6246 carrier_info.card_type,
6247 carrier_info.port_mode,
6248 carrier_info.port_speed);
6250 /* Update attributes for which we've obtained more authoritative */
6251 /* information, leave the rest the way they where filled above. */
6252 switch (carrier_info.card_type) {
6253 case CARD_INFO_TYPE_1G_COPPER_A:
6254 case CARD_INFO_TYPE_1G_COPPER_B:
6255 cmd->base.port = PORT_TP;
6256 qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port);
6258 case CARD_INFO_TYPE_1G_FIBRE_A:
6259 case CARD_INFO_TYPE_1G_FIBRE_B:
6260 cmd->base.port = PORT_FIBRE;
6261 qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port);
6263 case CARD_INFO_TYPE_10G_FIBRE_A:
6264 case CARD_INFO_TYPE_10G_FIBRE_B:
6265 cmd->base.port = PORT_FIBRE;
6266 qeth_set_cmd_adv_sup(cmd, SPEED_10000, cmd->base.port);
6270 switch (carrier_info.port_mode) {
6271 case CARD_INFO_PORTM_FULLDUPLEX:
6272 cmd->base.duplex = DUPLEX_FULL;
6274 case CARD_INFO_PORTM_HALFDUPLEX:
6275 cmd->base.duplex = DUPLEX_HALF;
6279 switch (carrier_info.port_speed) {
6280 case CARD_INFO_PORTS_10M:
6281 cmd->base.speed = SPEED_10;
6283 case CARD_INFO_PORTS_100M:
6284 cmd->base.speed = SPEED_100;
6286 case CARD_INFO_PORTS_1G:
6287 cmd->base.speed = SPEED_1000;
6289 case CARD_INFO_PORTS_10G:
6290 cmd->base.speed = SPEED_10000;
6296 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_link_ksettings);
6298 /* Callback to handle checksum offload command reply from OSA card.
6299 * Verify that required features have been enabled on the card.
6300 * Return error in hdr->return_code as this value is checked by caller.
6302 * Always returns zero to indicate no further messages from the OSA card.
6304 static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card *card,
6305 struct qeth_reply *reply,
6308 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
6309 struct qeth_checksum_cmd *chksum_cb =
6310 (struct qeth_checksum_cmd *)reply->param;
6312 QETH_CARD_TEXT(card, 4, "chkdoccb");
6313 if (qeth_setassparms_inspect_rc(cmd))
6316 memset(chksum_cb, 0, sizeof(*chksum_cb));
6317 if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6318 chksum_cb->supported =
6319 cmd->data.setassparms.data.chksum.supported;
6320 QETH_CARD_TEXT_(card, 3, "strt:%x", chksum_cb->supported);
6322 if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_ENABLE) {
6323 chksum_cb->supported =
6324 cmd->data.setassparms.data.chksum.supported;
6325 chksum_cb->enabled =
6326 cmd->data.setassparms.data.chksum.enabled;
6327 QETH_CARD_TEXT_(card, 3, "supp:%x", chksum_cb->supported);
6328 QETH_CARD_TEXT_(card, 3, "enab:%x", chksum_cb->enabled);
6333 /* Send command to OSA card and check results. */
6334 static int qeth_ipa_checksum_run_cmd(struct qeth_card *card,
6335 enum qeth_ipa_funcs ipa_func,
6336 __u16 cmd_code, long data,
6337 struct qeth_checksum_cmd *chksum_cb)
6339 struct qeth_cmd_buffer *iob;
6342 QETH_CARD_TEXT(card, 4, "chkdocmd");
6343 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6344 sizeof(__u32), QETH_PROT_IPV4);
6346 rc = qeth_send_setassparms(card, iob, sizeof(__u32), data,
6347 qeth_ipa_checksum_run_cmd_cb,
6352 static int qeth_send_checksum_on(struct qeth_card *card, int cstype)
6354 const __u32 required_features = QETH_IPA_CHECKSUM_IP_HDR |
6355 QETH_IPA_CHECKSUM_UDP |
6356 QETH_IPA_CHECKSUM_TCP;
6357 struct qeth_checksum_cmd chksum_cb;
6360 rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_START, 0,
6363 if ((required_features & chksum_cb.supported) !=
6366 else if (!(QETH_IPA_CHECKSUM_LP2LP & chksum_cb.supported) &&
6367 cstype == IPA_INBOUND_CHECKSUM)
6368 dev_warn(&card->gdev->dev,
6369 "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n",
6370 QETH_CARD_IFNAME(card));
6373 qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0);
6374 dev_warn(&card->gdev->dev,
6375 "Starting HW checksumming for %s failed, using SW checksumming\n",
6376 QETH_CARD_IFNAME(card));
6379 rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_ENABLE,
6380 chksum_cb.supported, &chksum_cb);
6382 if ((required_features & chksum_cb.enabled) !=
6387 qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0);
6388 dev_warn(&card->gdev->dev,
6389 "Enabling HW checksumming for %s failed, using SW checksumming\n",
6390 QETH_CARD_IFNAME(card));
6394 dev_info(&card->gdev->dev, "HW Checksumming (%sbound) enabled\n",
6395 cstype == IPA_INBOUND_CHECKSUM ? "in" : "out");
6399 static int qeth_set_ipa_csum(struct qeth_card *card, int on, int cstype)
6401 int rc = (on) ? qeth_send_checksum_on(card, cstype)
6402 : qeth_send_simple_setassparms(card, cstype,
6403 IPA_CMD_ASS_STOP, 0);
6404 return rc ? -EIO : 0;
6407 static int qeth_set_ipa_tso(struct qeth_card *card, int on)
6411 QETH_CARD_TEXT(card, 3, "sttso");
6414 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6415 IPA_CMD_ASS_START, 0);
6417 dev_warn(&card->gdev->dev,
6418 "Starting outbound TCP segmentation offload for %s failed\n",
6419 QETH_CARD_IFNAME(card));
6422 dev_info(&card->gdev->dev, "Outbound TSO enabled\n");
6424 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6425 IPA_CMD_ASS_STOP, 0);
6430 /* try to restore device features on a device after recovery */
6431 int qeth_recover_features(struct net_device *dev)
6433 struct qeth_card *card = dev->ml_priv;
6434 netdev_features_t recover = dev->features;
6436 if (recover & NETIF_F_IP_CSUM) {
6437 if (qeth_set_ipa_csum(card, 1, IPA_OUTBOUND_CHECKSUM))
6438 recover ^= NETIF_F_IP_CSUM;
6440 if (recover & NETIF_F_RXCSUM) {
6441 if (qeth_set_ipa_csum(card, 1, IPA_INBOUND_CHECKSUM))
6442 recover ^= NETIF_F_RXCSUM;
6444 if (recover & NETIF_F_TSO) {
6445 if (qeth_set_ipa_tso(card, 1))
6446 recover ^= NETIF_F_TSO;
6449 if (recover == dev->features)
6452 dev_warn(&card->gdev->dev,
6453 "Device recovery failed to restore all offload features\n");
6454 dev->features = recover;
6457 EXPORT_SYMBOL_GPL(qeth_recover_features);
6459 int qeth_set_features(struct net_device *dev, netdev_features_t features)
6461 struct qeth_card *card = dev->ml_priv;
6462 netdev_features_t changed = dev->features ^ features;
6465 QETH_DBF_TEXT(SETUP, 2, "setfeat");
6466 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
6468 if ((changed & NETIF_F_IP_CSUM)) {
6469 rc = qeth_set_ipa_csum(card,
6470 features & NETIF_F_IP_CSUM ? 1 : 0,
6471 IPA_OUTBOUND_CHECKSUM);
6473 changed ^= NETIF_F_IP_CSUM;
6475 if ((changed & NETIF_F_RXCSUM)) {
6476 rc = qeth_set_ipa_csum(card,
6477 features & NETIF_F_RXCSUM ? 1 : 0,
6478 IPA_INBOUND_CHECKSUM);
6480 changed ^= NETIF_F_RXCSUM;
6482 if ((changed & NETIF_F_TSO)) {
6483 rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO ? 1 : 0);
6485 changed ^= NETIF_F_TSO;
6488 /* everything changed successfully? */
6489 if ((dev->features ^ features) == changed)
6491 /* something went wrong. save changed features and return error */
6492 dev->features ^= changed;
6495 EXPORT_SYMBOL_GPL(qeth_set_features);
6497 netdev_features_t qeth_fix_features(struct net_device *dev,
6498 netdev_features_t features)
6500 struct qeth_card *card = dev->ml_priv;
6502 QETH_DBF_TEXT(SETUP, 2, "fixfeat");
6503 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
6504 features &= ~NETIF_F_IP_CSUM;
6505 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
6506 features &= ~NETIF_F_RXCSUM;
6507 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO))
6508 features &= ~NETIF_F_TSO;
6509 /* if the card isn't up, remove features that require hw changes */
6510 if (card->state == CARD_STATE_DOWN ||
6511 card->state == CARD_STATE_RECOVER)
6512 features = features & ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
6514 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
6517 EXPORT_SYMBOL_GPL(qeth_fix_features);
6519 netdev_features_t qeth_features_check(struct sk_buff *skb,
6520 struct net_device *dev,
6521 netdev_features_t features)
6523 /* GSO segmentation builds skbs with
6524 * a (small) linear part for the headers, and
6525 * page frags for the data.
6526 * Compared to a linear skb, the header-only part consumes an
6527 * additional buffer element. This reduces buffer utilization, and
6528 * hurts throughput. So compress small segments into one element.
6530 if (netif_needs_gso(skb, features)) {
6531 /* match skb_segment(): */
6532 unsigned int doffset = skb->data - skb_mac_header(skb);
6533 unsigned int hsize = skb_shinfo(skb)->gso_size;
6534 unsigned int hroom = skb_headroom(skb);
6536 /* linearize only if resulting skb allocations are order-0: */
6537 if (SKB_DATA_ALIGN(hroom + doffset + hsize) <= SKB_MAX_HEAD(0))
6538 features &= ~NETIF_F_SG;
6541 return vlan_features_check(skb, features);
6543 EXPORT_SYMBOL_GPL(qeth_features_check);
6545 static int __init qeth_core_init(void)
6549 pr_info("loading core functions\n");
6550 INIT_LIST_HEAD(&qeth_core_card_list.list);
6551 INIT_LIST_HEAD(&qeth_dbf_list);
6552 rwlock_init(&qeth_core_card_list.rwlock);
6553 mutex_init(&qeth_mod_mutex);
6555 qeth_wq = create_singlethread_workqueue("qeth_wq");
6557 rc = qeth_register_dbf_views();
6560 qeth_core_root_dev = root_device_register("qeth");
6561 rc = PTR_ERR_OR_ZERO(qeth_core_root_dev);
6564 qeth_core_header_cache = kmem_cache_create("qeth_hdr",
6565 sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
6566 if (!qeth_core_header_cache) {
6570 qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf",
6571 sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL);
6572 if (!qeth_qdio_outbuf_cache) {
6576 rc = ccw_driver_register(&qeth_ccw_driver);
6579 qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups;
6580 rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
6587 ccw_driver_unregister(&qeth_ccw_driver);
6589 kmem_cache_destroy(qeth_qdio_outbuf_cache);
6591 kmem_cache_destroy(qeth_core_header_cache);
6593 root_device_unregister(qeth_core_root_dev);
6595 qeth_unregister_dbf_views();
6597 pr_err("Initializing the qeth device driver failed\n");
6601 static void __exit qeth_core_exit(void)
6603 qeth_clear_dbf_list();
6604 destroy_workqueue(qeth_wq);
6605 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
6606 ccw_driver_unregister(&qeth_ccw_driver);
6607 kmem_cache_destroy(qeth_qdio_outbuf_cache);
6608 kmem_cache_destroy(qeth_core_header_cache);
6609 root_device_unregister(qeth_core_root_dev);
6610 qeth_unregister_dbf_views();
6611 pr_info("core functions removed\n");
6614 module_init(qeth_core_init);
6615 module_exit(qeth_core_exit);
6616 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
6617 MODULE_DESCRIPTION("qeth core functions");
6618 MODULE_LICENSE("GPL");