2 * Copyright IBM Corp. 2007, 2009
3 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
4 * Frank Pavlic <fpavlic@de.ibm.com>,
5 * Thomas Spatzier <tspat@de.ibm.com>,
6 * Frank Blaschka <frank.blaschka@de.ibm.com>
9 #define KMSG_COMPONENT "qeth"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/string.h>
15 #include <linux/errno.h>
16 #include <linux/kernel.h>
18 #include <linux/tcp.h>
19 #include <linux/mii.h>
20 #include <linux/kthread.h>
21 #include <linux/slab.h>
22 #include <net/iucv/af_iucv.h>
23 #include <net/dsfield.h>
25 #include <asm/ebcdic.h>
26 #include <asm/chpid.h>
28 #include <asm/sysinfo.h>
29 #include <asm/compat.h>
31 #include "qeth_core.h"
33 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
34 /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
36 [QETH_DBF_SETUP] = {"qeth_setup",
37 8, 1, 8, 5, &debug_hex_ascii_view, NULL},
38 [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
39 &debug_sprintf_view, NULL},
40 [QETH_DBF_CTRL] = {"qeth_control",
41 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
43 EXPORT_SYMBOL_GPL(qeth_dbf);
45 struct qeth_card_list_struct qeth_core_card_list;
46 EXPORT_SYMBOL_GPL(qeth_core_card_list);
47 struct kmem_cache *qeth_core_header_cache;
48 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
49 static struct kmem_cache *qeth_qdio_outbuf_cache;
51 static struct device *qeth_core_root_dev;
52 static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY;
53 static struct lock_class_key qdio_out_skb_queue_key;
54 static struct mutex qeth_mod_mutex;
56 static void qeth_send_control_data_cb(struct qeth_channel *,
57 struct qeth_cmd_buffer *);
58 static int qeth_issue_next_read(struct qeth_card *);
59 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
60 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
61 static void qeth_free_buffer_pool(struct qeth_card *);
62 static int qeth_qdio_establish(struct qeth_card *);
63 static void qeth_free_qdio_buffers(struct qeth_card *);
64 static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
65 struct qeth_qdio_out_buffer *buf,
66 enum iucv_tx_notify notification);
67 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
68 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
69 struct qeth_qdio_out_buffer *buf,
70 enum qeth_qdio_buffer_states newbufstate);
71 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
73 struct workqueue_struct *qeth_wq;
74 EXPORT_SYMBOL_GPL(qeth_wq);
76 int qeth_card_hw_is_reachable(struct qeth_card *card)
78 return (card->state == CARD_STATE_SOFTSETUP) ||
79 (card->state == CARD_STATE_UP);
81 EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable);
83 static void qeth_close_dev_handler(struct work_struct *work)
85 struct qeth_card *card;
87 card = container_of(work, struct qeth_card, close_dev_work);
88 QETH_CARD_TEXT(card, 2, "cldevhdl");
92 ccwgroup_set_offline(card->gdev);
95 void qeth_close_dev(struct qeth_card *card)
97 QETH_CARD_TEXT(card, 2, "cldevsubm");
98 queue_work(qeth_wq, &card->close_dev_work);
100 EXPORT_SYMBOL_GPL(qeth_close_dev);
102 static inline const char *qeth_get_cardname(struct qeth_card *card)
104 if (card->info.guestlan) {
105 switch (card->info.type) {
106 case QETH_CARD_TYPE_OSD:
107 return " Virtual NIC QDIO";
108 case QETH_CARD_TYPE_IQD:
109 return " Virtual NIC Hiper";
110 case QETH_CARD_TYPE_OSM:
111 return " Virtual NIC QDIO - OSM";
112 case QETH_CARD_TYPE_OSX:
113 return " Virtual NIC QDIO - OSX";
118 switch (card->info.type) {
119 case QETH_CARD_TYPE_OSD:
120 return " OSD Express";
121 case QETH_CARD_TYPE_IQD:
122 return " HiperSockets";
123 case QETH_CARD_TYPE_OSN:
125 case QETH_CARD_TYPE_OSM:
127 case QETH_CARD_TYPE_OSX:
136 /* max length to be returned: 14 */
137 const char *qeth_get_cardname_short(struct qeth_card *card)
139 if (card->info.guestlan) {
140 switch (card->info.type) {
141 case QETH_CARD_TYPE_OSD:
142 return "Virt.NIC QDIO";
143 case QETH_CARD_TYPE_IQD:
144 return "Virt.NIC Hiper";
145 case QETH_CARD_TYPE_OSM:
146 return "Virt.NIC OSM";
147 case QETH_CARD_TYPE_OSX:
148 return "Virt.NIC OSX";
153 switch (card->info.type) {
154 case QETH_CARD_TYPE_OSD:
155 switch (card->info.link_type) {
156 case QETH_LINK_TYPE_FAST_ETH:
158 case QETH_LINK_TYPE_HSTR:
160 case QETH_LINK_TYPE_GBIT_ETH:
162 case QETH_LINK_TYPE_10GBIT_ETH:
164 case QETH_LINK_TYPE_LANE_ETH100:
165 return "OSD_FE_LANE";
166 case QETH_LINK_TYPE_LANE_TR:
167 return "OSD_TR_LANE";
168 case QETH_LINK_TYPE_LANE_ETH1000:
169 return "OSD_GbE_LANE";
170 case QETH_LINK_TYPE_LANE:
171 return "OSD_ATM_LANE";
173 return "OSD_Express";
175 case QETH_CARD_TYPE_IQD:
176 return "HiperSockets";
177 case QETH_CARD_TYPE_OSN:
179 case QETH_CARD_TYPE_OSM:
181 case QETH_CARD_TYPE_OSX:
190 void qeth_set_recovery_task(struct qeth_card *card)
192 card->recovery_task = current;
194 EXPORT_SYMBOL_GPL(qeth_set_recovery_task);
196 void qeth_clear_recovery_task(struct qeth_card *card)
198 card->recovery_task = NULL;
200 EXPORT_SYMBOL_GPL(qeth_clear_recovery_task);
202 static bool qeth_is_recovery_task(const struct qeth_card *card)
204 return card->recovery_task == current;
207 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
208 int clear_start_mask)
212 spin_lock_irqsave(&card->thread_mask_lock, flags);
213 card->thread_allowed_mask = threads;
214 if (clear_start_mask)
215 card->thread_start_mask &= threads;
216 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
217 wake_up(&card->wait_q);
219 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
221 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
226 spin_lock_irqsave(&card->thread_mask_lock, flags);
227 rc = (card->thread_running_mask & threads);
228 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
231 EXPORT_SYMBOL_GPL(qeth_threads_running);
233 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
235 if (qeth_is_recovery_task(card))
237 return wait_event_interruptible(card->wait_q,
238 qeth_threads_running(card, threads) == 0);
240 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
242 void qeth_clear_working_pool_list(struct qeth_card *card)
244 struct qeth_buffer_pool_entry *pool_entry, *tmp;
246 QETH_CARD_TEXT(card, 5, "clwrklst");
247 list_for_each_entry_safe(pool_entry, tmp,
248 &card->qdio.in_buf_pool.entry_list, list){
249 list_del(&pool_entry->list);
252 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
254 static int qeth_alloc_buffer_pool(struct qeth_card *card)
256 struct qeth_buffer_pool_entry *pool_entry;
260 QETH_CARD_TEXT(card, 5, "alocpool");
261 for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
262 pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL);
264 qeth_free_buffer_pool(card);
267 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
268 ptr = (void *) __get_free_page(GFP_KERNEL);
271 free_page((unsigned long)
272 pool_entry->elements[--j]);
274 qeth_free_buffer_pool(card);
277 pool_entry->elements[j] = ptr;
279 list_add(&pool_entry->init_list,
280 &card->qdio.init_pool.entry_list);
285 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
287 QETH_CARD_TEXT(card, 2, "realcbp");
289 if ((card->state != CARD_STATE_DOWN) &&
290 (card->state != CARD_STATE_RECOVER))
293 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
294 qeth_clear_working_pool_list(card);
295 qeth_free_buffer_pool(card);
296 card->qdio.in_buf_pool.buf_count = bufcnt;
297 card->qdio.init_pool.buf_count = bufcnt;
298 return qeth_alloc_buffer_pool(card);
300 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
302 static void qeth_free_qdio_queue(struct qeth_qdio_q *q)
307 qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
311 static struct qeth_qdio_q *qeth_alloc_qdio_queue(void)
313 struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
319 if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
324 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
325 q->bufs[i].buffer = q->qdio_bufs[i];
327 QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *));
331 static inline int qeth_cq_init(struct qeth_card *card)
335 if (card->options.cq == QETH_CQ_ENABLED) {
336 QETH_DBF_TEXT(SETUP, 2, "cqinit");
337 qdio_reset_buffers(card->qdio.c_q->qdio_bufs,
338 QDIO_MAX_BUFFERS_PER_Q);
339 card->qdio.c_q->next_buf_to_init = 127;
340 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
341 card->qdio.no_in_queues - 1, 0,
344 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
353 static inline int qeth_alloc_cq(struct qeth_card *card)
357 if (card->options.cq == QETH_CQ_ENABLED) {
359 struct qdio_outbuf_state *outbuf_states;
361 QETH_DBF_TEXT(SETUP, 2, "cqon");
362 card->qdio.c_q = qeth_alloc_qdio_queue();
363 if (!card->qdio.c_q) {
367 card->qdio.no_in_queues = 2;
368 card->qdio.out_bufstates =
369 kzalloc(card->qdio.no_out_queues *
370 QDIO_MAX_BUFFERS_PER_Q *
371 sizeof(struct qdio_outbuf_state), GFP_KERNEL);
372 outbuf_states = card->qdio.out_bufstates;
373 if (outbuf_states == NULL) {
377 for (i = 0; i < card->qdio.no_out_queues; ++i) {
378 card->qdio.out_qs[i]->bufstates = outbuf_states;
379 outbuf_states += QDIO_MAX_BUFFERS_PER_Q;
382 QETH_DBF_TEXT(SETUP, 2, "nocq");
383 card->qdio.c_q = NULL;
384 card->qdio.no_in_queues = 1;
386 QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues);
391 qeth_free_qdio_queue(card->qdio.c_q);
392 card->qdio.c_q = NULL;
394 dev_err(&card->gdev->dev, "Failed to create completion queue\n");
398 static inline void qeth_free_cq(struct qeth_card *card)
400 if (card->qdio.c_q) {
401 --card->qdio.no_in_queues;
402 qeth_free_qdio_queue(card->qdio.c_q);
403 card->qdio.c_q = NULL;
405 kfree(card->qdio.out_bufstates);
406 card->qdio.out_bufstates = NULL;
409 static inline enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
411 enum iucv_tx_notify n;
415 n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK;
421 n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE :
422 TX_NOTIFY_UNREACHABLE;
425 n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR :
426 TX_NOTIFY_GENERALERROR;
433 static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q,
434 int bidx, int forced_cleanup)
436 if (q->card->options.cq != QETH_CQ_ENABLED)
439 if (q->bufs[bidx]->next_pending != NULL) {
440 struct qeth_qdio_out_buffer *head = q->bufs[bidx];
441 struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending;
444 if (forced_cleanup ||
445 atomic_read(&c->state) ==
446 QETH_QDIO_BUF_HANDLED_DELAYED) {
447 struct qeth_qdio_out_buffer *f = c;
448 QETH_CARD_TEXT(f->q->card, 5, "fp");
449 QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f);
450 /* release here to avoid interleaving between
451 outbound tasklet and inbound tasklet
452 regarding notifications and lifecycle */
453 qeth_release_skbs(c);
456 WARN_ON_ONCE(head->next_pending != f);
457 head->next_pending = c;
458 kmem_cache_free(qeth_qdio_outbuf_cache, f);
466 if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) ==
467 QETH_QDIO_BUF_HANDLED_DELAYED)) {
468 /* for recovery situations */
469 q->bufs[bidx]->aob = q->bufstates[bidx].aob;
470 qeth_init_qdio_out_buf(q, bidx);
471 QETH_CARD_TEXT(q->card, 2, "clprecov");
476 static inline void qeth_qdio_handle_aob(struct qeth_card *card,
477 unsigned long phys_aob_addr) {
479 struct qeth_qdio_out_buffer *buffer;
480 enum iucv_tx_notify notification;
482 aob = (struct qaob *) phys_to_virt(phys_aob_addr);
483 QETH_CARD_TEXT(card, 5, "haob");
484 QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr);
485 buffer = (struct qeth_qdio_out_buffer *) aob->user1;
486 QETH_CARD_TEXT_(card, 5, "%lx", aob->user1);
488 if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED,
489 QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) {
490 notification = TX_NOTIFY_OK;
492 WARN_ON_ONCE(atomic_read(&buffer->state) !=
493 QETH_QDIO_BUF_PENDING);
494 atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ);
495 notification = TX_NOTIFY_DELAYED_OK;
498 if (aob->aorc != 0) {
499 QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc);
500 notification = qeth_compute_cq_notification(aob->aorc, 1);
502 qeth_notify_skbs(buffer->q, buffer, notification);
505 qeth_clear_output_buffer(buffer->q, buffer,
506 QETH_QDIO_BUF_HANDLED_DELAYED);
508 /* from here on: do not touch buffer anymore */
509 qdio_release_aob(aob);
512 static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
514 return card->options.cq == QETH_CQ_ENABLED &&
515 card->qdio.c_q != NULL &&
517 queue == card->qdio.no_in_queues - 1;
521 static int qeth_issue_next_read(struct qeth_card *card)
524 struct qeth_cmd_buffer *iob;
526 QETH_CARD_TEXT(card, 5, "issnxrd");
527 if (card->read.state != CH_STATE_UP)
529 iob = qeth_get_buffer(&card->read);
531 dev_warn(&card->gdev->dev, "The qeth device driver "
532 "failed to recover an error on the device\n");
533 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
534 "available\n", dev_name(&card->gdev->dev));
537 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
538 QETH_CARD_TEXT(card, 6, "noirqpnd");
539 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
542 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
543 "rc=%i\n", dev_name(&card->gdev->dev), rc);
544 atomic_set(&card->read.irq_pending, 0);
545 card->read_or_write_problem = 1;
546 qeth_schedule_recovery(card);
547 wake_up(&card->wait_q);
552 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
554 struct qeth_reply *reply;
556 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
558 atomic_set(&reply->refcnt, 1);
559 atomic_set(&reply->received, 0);
565 static void qeth_get_reply(struct qeth_reply *reply)
567 WARN_ON(atomic_read(&reply->refcnt) <= 0);
568 atomic_inc(&reply->refcnt);
571 static void qeth_put_reply(struct qeth_reply *reply)
573 WARN_ON(atomic_read(&reply->refcnt) <= 0);
574 if (atomic_dec_and_test(&reply->refcnt))
578 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
579 struct qeth_card *card)
582 int com = cmd->hdr.command;
583 ipa_name = qeth_get_ipa_cmd_name(com);
585 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
587 ipa_name, com, dev_name(&card->gdev->dev),
588 QETH_CARD_IFNAME(card), rc,
589 qeth_get_ipa_msg(rc));
591 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
592 ipa_name, com, dev_name(&card->gdev->dev),
593 QETH_CARD_IFNAME(card));
596 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
597 struct qeth_cmd_buffer *iob)
599 struct qeth_ipa_cmd *cmd = NULL;
601 QETH_CARD_TEXT(card, 5, "chkipad");
602 if (IS_IPA(iob->data)) {
603 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
604 if (IS_IPA_REPLY(cmd)) {
605 if (cmd->hdr.command != IPA_CMD_SETCCID &&
606 cmd->hdr.command != IPA_CMD_DELCCID &&
607 cmd->hdr.command != IPA_CMD_MODCCID &&
608 cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
609 qeth_issue_ipa_msg(cmd,
610 cmd->hdr.return_code, card);
613 switch (cmd->hdr.command) {
614 case IPA_CMD_STOPLAN:
615 if (cmd->hdr.return_code ==
616 IPA_RC_VEPA_TO_VEB_TRANSITION) {
617 dev_err(&card->gdev->dev,
618 "Interface %s is down because the "
619 "adjacent port is no longer in "
620 "reflective relay mode\n",
621 QETH_CARD_IFNAME(card));
622 qeth_close_dev(card);
624 dev_warn(&card->gdev->dev,
625 "The link for interface %s on CHPID"
627 QETH_CARD_IFNAME(card),
629 qeth_issue_ipa_msg(cmd,
630 cmd->hdr.return_code, card);
632 card->lan_online = 0;
633 if (card->dev && netif_carrier_ok(card->dev))
634 netif_carrier_off(card->dev);
636 case IPA_CMD_STARTLAN:
637 dev_info(&card->gdev->dev,
638 "The link for %s on CHPID 0x%X has"
640 QETH_CARD_IFNAME(card),
642 netif_carrier_on(card->dev);
643 card->lan_online = 1;
644 if (card->info.hwtrap)
645 card->info.hwtrap = 2;
646 qeth_schedule_recovery(card);
648 case IPA_CMD_SETBRIDGEPORT_IQD:
649 case IPA_CMD_SETBRIDGEPORT_OSA:
650 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
651 if (card->discipline->control_event_handler
656 case IPA_CMD_MODCCID:
658 case IPA_CMD_REGISTER_LOCAL_ADDR:
659 QETH_CARD_TEXT(card, 3, "irla");
661 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
662 QETH_CARD_TEXT(card, 3, "urla");
665 QETH_DBF_MESSAGE(2, "Received data is IPA "
666 "but not a reply!\n");
674 void qeth_clear_ipacmd_list(struct qeth_card *card)
676 struct qeth_reply *reply, *r;
679 QETH_CARD_TEXT(card, 4, "clipalst");
681 spin_lock_irqsave(&card->lock, flags);
682 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
683 qeth_get_reply(reply);
685 atomic_inc(&reply->received);
686 list_del_init(&reply->list);
687 wake_up(&reply->wait_q);
688 qeth_put_reply(reply);
690 spin_unlock_irqrestore(&card->lock, flags);
691 atomic_set(&card->write.irq_pending, 0);
693 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
695 static int qeth_check_idx_response(struct qeth_card *card,
696 unsigned char *buffer)
701 QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
702 if ((buffer[2] & 0xc0) == 0xc0) {
703 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
704 "with cause code 0x%02x%s\n",
706 ((buffer[4] == 0x22) ?
707 " -- try another portname" : ""));
708 QETH_CARD_TEXT(card, 2, "ckidxres");
709 QETH_CARD_TEXT(card, 2, " idxterm");
710 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
711 if (buffer[4] == 0xf6) {
712 dev_err(&card->gdev->dev,
713 "The qeth device is not configured "
714 "for the OSI layer required by z/VM\n");
722 static struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
724 struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
725 dev_get_drvdata(&cdev->dev))->dev);
729 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
732 struct qeth_card *card;
734 card = CARD_FROM_CDEV(channel->ccwdev);
735 QETH_CARD_TEXT(card, 4, "setupccw");
736 if (channel == &card->read)
737 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
739 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
740 channel->ccw.count = len;
741 channel->ccw.cda = (__u32) __pa(iob);
744 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
748 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
749 index = channel->io_buf_no;
751 if (channel->iob[index].state == BUF_STATE_FREE) {
752 channel->iob[index].state = BUF_STATE_LOCKED;
753 channel->io_buf_no = (channel->io_buf_no + 1) %
755 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
756 return channel->iob + index;
758 index = (index + 1) % QETH_CMD_BUFFER_NO;
759 } while (index != channel->io_buf_no);
764 void qeth_release_buffer(struct qeth_channel *channel,
765 struct qeth_cmd_buffer *iob)
769 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
770 spin_lock_irqsave(&channel->iob_lock, flags);
771 memset(iob->data, 0, QETH_BUFSIZE);
772 iob->state = BUF_STATE_FREE;
773 iob->callback = qeth_send_control_data_cb;
775 spin_unlock_irqrestore(&channel->iob_lock, flags);
776 wake_up(&channel->wait_q);
778 EXPORT_SYMBOL_GPL(qeth_release_buffer);
780 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
782 struct qeth_cmd_buffer *buffer = NULL;
785 spin_lock_irqsave(&channel->iob_lock, flags);
786 buffer = __qeth_get_buffer(channel);
787 spin_unlock_irqrestore(&channel->iob_lock, flags);
791 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
793 struct qeth_cmd_buffer *buffer;
794 wait_event(channel->wait_q,
795 ((buffer = qeth_get_buffer(channel)) != NULL));
798 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
800 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
804 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
805 qeth_release_buffer(channel, &channel->iob[cnt]);
807 channel->io_buf_no = 0;
809 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
811 static void qeth_send_control_data_cb(struct qeth_channel *channel,
812 struct qeth_cmd_buffer *iob)
814 struct qeth_card *card;
815 struct qeth_reply *reply, *r;
816 struct qeth_ipa_cmd *cmd;
821 card = CARD_FROM_CDEV(channel->ccwdev);
822 QETH_CARD_TEXT(card, 4, "sndctlcb");
823 rc = qeth_check_idx_response(card, iob->data);
828 qeth_clear_ipacmd_list(card);
829 qeth_schedule_recovery(card);
835 cmd = qeth_check_ipa_data(card, iob);
836 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
838 /*in case of OSN : check if cmd is set */
839 if (card->info.type == QETH_CARD_TYPE_OSN &&
841 cmd->hdr.command != IPA_CMD_STARTLAN &&
842 card->osn_info.assist_cb != NULL) {
843 card->osn_info.assist_cb(card->dev, cmd);
847 spin_lock_irqsave(&card->lock, flags);
848 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
849 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
850 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
851 qeth_get_reply(reply);
852 list_del_init(&reply->list);
853 spin_unlock_irqrestore(&card->lock, flags);
855 if (reply->callback != NULL) {
857 reply->offset = (__u16)((char *)cmd -
859 keep_reply = reply->callback(card,
863 keep_reply = reply->callback(card,
868 reply->rc = (u16) cmd->hdr.return_code;
872 spin_lock_irqsave(&card->lock, flags);
873 list_add_tail(&reply->list,
874 &card->cmd_waiter_list);
875 spin_unlock_irqrestore(&card->lock, flags);
877 atomic_inc(&reply->received);
878 wake_up(&reply->wait_q);
880 qeth_put_reply(reply);
884 spin_unlock_irqrestore(&card->lock, flags);
886 memcpy(&card->seqno.pdu_hdr_ack,
887 QETH_PDU_HEADER_SEQ_NO(iob->data),
889 qeth_release_buffer(channel, iob);
892 static int qeth_setup_channel(struct qeth_channel *channel)
896 QETH_DBF_TEXT(SETUP, 2, "setupch");
897 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
898 channel->iob[cnt].data =
899 kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
900 if (channel->iob[cnt].data == NULL)
902 channel->iob[cnt].state = BUF_STATE_FREE;
903 channel->iob[cnt].channel = channel;
904 channel->iob[cnt].callback = qeth_send_control_data_cb;
905 channel->iob[cnt].rc = 0;
907 if (cnt < QETH_CMD_BUFFER_NO) {
909 kfree(channel->iob[cnt].data);
913 channel->io_buf_no = 0;
914 atomic_set(&channel->irq_pending, 0);
915 spin_lock_init(&channel->iob_lock);
917 init_waitqueue_head(&channel->wait_q);
921 static int qeth_set_thread_start_bit(struct qeth_card *card,
922 unsigned long thread)
926 spin_lock_irqsave(&card->thread_mask_lock, flags);
927 if (!(card->thread_allowed_mask & thread) ||
928 (card->thread_start_mask & thread)) {
929 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
932 card->thread_start_mask |= thread;
933 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
937 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
941 spin_lock_irqsave(&card->thread_mask_lock, flags);
942 card->thread_start_mask &= ~thread;
943 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
944 wake_up(&card->wait_q);
946 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
948 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
952 spin_lock_irqsave(&card->thread_mask_lock, flags);
953 card->thread_running_mask &= ~thread;
954 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
955 wake_up(&card->wait_q);
957 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
959 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
964 spin_lock_irqsave(&card->thread_mask_lock, flags);
965 if (card->thread_start_mask & thread) {
966 if ((card->thread_allowed_mask & thread) &&
967 !(card->thread_running_mask & thread)) {
969 card->thread_start_mask &= ~thread;
970 card->thread_running_mask |= thread;
974 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
978 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
982 wait_event(card->wait_q,
983 (rc = __qeth_do_run_thread(card, thread)) >= 0);
986 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
988 void qeth_schedule_recovery(struct qeth_card *card)
990 QETH_CARD_TEXT(card, 2, "startrec");
991 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
992 schedule_work(&card->kernel_thread_starter);
994 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
996 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
1000 struct qeth_card *card;
1002 sense = (char *) irb->ecw;
1003 cstat = irb->scsw.cmd.cstat;
1004 dstat = irb->scsw.cmd.dstat;
1005 card = CARD_FROM_CDEV(cdev);
1007 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
1008 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
1009 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
1010 QETH_CARD_TEXT(card, 2, "CGENCHK");
1011 dev_warn(&cdev->dev, "The qeth device driver "
1012 "failed to recover an error on the device\n");
1013 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
1014 dev_name(&cdev->dev), dstat, cstat);
1015 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
1020 if (dstat & DEV_STAT_UNIT_CHECK) {
1021 if (sense[SENSE_RESETTING_EVENT_BYTE] &
1022 SENSE_RESETTING_EVENT_FLAG) {
1023 QETH_CARD_TEXT(card, 2, "REVIND");
1026 if (sense[SENSE_COMMAND_REJECT_BYTE] &
1027 SENSE_COMMAND_REJECT_FLAG) {
1028 QETH_CARD_TEXT(card, 2, "CMDREJi");
1031 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
1032 QETH_CARD_TEXT(card, 2, "AFFE");
1035 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
1036 QETH_CARD_TEXT(card, 2, "ZEROSEN");
1039 QETH_CARD_TEXT(card, 2, "DGENCHK");
1045 static long __qeth_check_irb_error(struct ccw_device *cdev,
1046 unsigned long intparm, struct irb *irb)
1048 struct qeth_card *card;
1050 card = CARD_FROM_CDEV(cdev);
1052 if (!card || !IS_ERR(irb))
1055 switch (PTR_ERR(irb)) {
1057 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
1058 dev_name(&cdev->dev));
1059 QETH_CARD_TEXT(card, 2, "ckirberr");
1060 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
1063 dev_warn(&cdev->dev, "A hardware operation timed out"
1064 " on the device\n");
1065 QETH_CARD_TEXT(card, 2, "ckirberr");
1066 QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT);
1067 if (intparm == QETH_RCD_PARM) {
1068 if (card->data.ccwdev == cdev) {
1069 card->data.state = CH_STATE_DOWN;
1070 wake_up(&card->wait_q);
1075 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
1076 dev_name(&cdev->dev), PTR_ERR(irb));
1077 QETH_CARD_TEXT(card, 2, "ckirberr");
1078 QETH_CARD_TEXT(card, 2, " rc???");
1080 return PTR_ERR(irb);
1083 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
1088 struct qeth_cmd_buffer *buffer;
1089 struct qeth_channel *channel;
1090 struct qeth_card *card;
1091 struct qeth_cmd_buffer *iob;
1094 if (__qeth_check_irb_error(cdev, intparm, irb))
1096 cstat = irb->scsw.cmd.cstat;
1097 dstat = irb->scsw.cmd.dstat;
1099 card = CARD_FROM_CDEV(cdev);
1103 QETH_CARD_TEXT(card, 5, "irq");
1105 if (card->read.ccwdev == cdev) {
1106 channel = &card->read;
1107 QETH_CARD_TEXT(card, 5, "read");
1108 } else if (card->write.ccwdev == cdev) {
1109 channel = &card->write;
1110 QETH_CARD_TEXT(card, 5, "write");
1112 channel = &card->data;
1113 QETH_CARD_TEXT(card, 5, "data");
1115 atomic_set(&channel->irq_pending, 0);
1117 if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
1118 channel->state = CH_STATE_STOPPED;
1120 if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
1121 channel->state = CH_STATE_HALTED;
1123 /*let's wake up immediately on data channel*/
1124 if ((channel == &card->data) && (intparm != 0) &&
1125 (intparm != QETH_RCD_PARM))
1128 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
1129 QETH_CARD_TEXT(card, 6, "clrchpar");
1130 /* we don't have to handle this further */
1133 if (intparm == QETH_HALT_CHANNEL_PARM) {
1134 QETH_CARD_TEXT(card, 6, "hltchpar");
1135 /* we don't have to handle this further */
1138 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
1139 (dstat & DEV_STAT_UNIT_CHECK) ||
1141 if (irb->esw.esw0.erw.cons) {
1142 dev_warn(&channel->ccwdev->dev,
1143 "The qeth device driver failed to recover "
1144 "an error on the device\n");
1145 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1146 "0x%X dstat 0x%X\n",
1147 dev_name(&channel->ccwdev->dev), cstat, dstat);
1148 print_hex_dump(KERN_WARNING, "qeth: irb ",
1149 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
1150 print_hex_dump(KERN_WARNING, "qeth: sense data ",
1151 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
1153 if (intparm == QETH_RCD_PARM) {
1154 channel->state = CH_STATE_DOWN;
1157 rc = qeth_get_problem(cdev, irb);
1159 qeth_clear_ipacmd_list(card);
1160 qeth_schedule_recovery(card);
1165 if (intparm == QETH_RCD_PARM) {
1166 channel->state = CH_STATE_RCD_DONE;
1170 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
1171 buffer->state = BUF_STATE_PROCESSED;
1173 if (channel == &card->data)
1175 if (channel == &card->read &&
1176 channel->state == CH_STATE_UP)
1177 qeth_issue_next_read(card);
1180 index = channel->buf_no;
1181 while (iob[index].state == BUF_STATE_PROCESSED) {
1182 if (iob[index].callback != NULL)
1183 iob[index].callback(channel, iob + index);
1185 index = (index + 1) % QETH_CMD_BUFFER_NO;
1187 channel->buf_no = index;
1189 wake_up(&card->wait_q);
1193 static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
1194 struct qeth_qdio_out_buffer *buf,
1195 enum iucv_tx_notify notification)
1197 struct sk_buff *skb;
1199 if (skb_queue_empty(&buf->skb_list))
1201 skb = skb_peek(&buf->skb_list);
1203 QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
1204 QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
1205 if (skb->protocol == ETH_P_AF_IUCV) {
1207 struct iucv_sock *iucv = iucv_sk(skb->sk);
1208 iucv->sk_txnotify(skb, notification);
1211 if (skb_queue_is_last(&buf->skb_list, skb))
1214 skb = skb_queue_next(&buf->skb_list, skb);
1220 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
1222 struct sk_buff *skb;
1223 struct iucv_sock *iucv;
1224 int notify_general_error = 0;
1226 if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
1227 notify_general_error = 1;
1229 /* release may never happen from within CQ tasklet scope */
1230 WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
1232 skb = skb_dequeue(&buf->skb_list);
1234 QETH_CARD_TEXT(buf->q->card, 5, "skbr");
1235 QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb);
1236 if (notify_general_error && skb->protocol == ETH_P_AF_IUCV) {
1238 iucv = iucv_sk(skb->sk);
1239 iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR);
1242 atomic_dec(&skb->users);
1243 dev_kfree_skb_any(skb);
1244 skb = skb_dequeue(&buf->skb_list);
1248 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
1249 struct qeth_qdio_out_buffer *buf,
1250 enum qeth_qdio_buffer_states newbufstate)
1254 /* is PCI flag set on buffer? */
1255 if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ)
1256 atomic_dec(&queue->set_pci_flags_count);
1258 if (newbufstate == QETH_QDIO_BUF_EMPTY) {
1259 qeth_release_skbs(buf);
1261 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
1262 if (buf->buffer->element[i].addr && buf->is_header[i])
1263 kmem_cache_free(qeth_core_header_cache,
1264 buf->buffer->element[i].addr);
1265 buf->is_header[i] = 0;
1266 buf->buffer->element[i].length = 0;
1267 buf->buffer->element[i].addr = NULL;
1268 buf->buffer->element[i].eflags = 0;
1269 buf->buffer->element[i].sflags = 0;
1271 buf->buffer->element[15].eflags = 0;
1272 buf->buffer->element[15].sflags = 0;
1273 buf->next_element_to_fill = 0;
1274 atomic_set(&buf->state, newbufstate);
1277 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free)
1281 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
1284 qeth_cleanup_handled_pending(q, j, 1);
1285 qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY);
1287 kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]);
1293 void qeth_clear_qdio_buffers(struct qeth_card *card)
1297 QETH_CARD_TEXT(card, 2, "clearqdbf");
1298 /* clear outbound buffers to free skbs */
1299 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1300 if (card->qdio.out_qs[i]) {
1301 qeth_clear_outq_buffers(card->qdio.out_qs[i], 0);
1305 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
1307 static void qeth_free_buffer_pool(struct qeth_card *card)
1309 struct qeth_buffer_pool_entry *pool_entry, *tmp;
1311 list_for_each_entry_safe(pool_entry, tmp,
1312 &card->qdio.init_pool.entry_list, init_list){
1313 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
1314 free_page((unsigned long)pool_entry->elements[i]);
1315 list_del(&pool_entry->init_list);
1320 static void qeth_clean_channel(struct qeth_channel *channel)
1324 QETH_DBF_TEXT(SETUP, 2, "freech");
1325 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1326 kfree(channel->iob[cnt].data);
1329 static void qeth_set_single_write_queues(struct qeth_card *card)
1331 if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
1332 (card->qdio.no_out_queues == 4))
1333 qeth_free_qdio_buffers(card);
1335 card->qdio.no_out_queues = 1;
1336 if (card->qdio.default_out_queue != 0)
1337 dev_info(&card->gdev->dev, "Priority Queueing not supported\n");
1339 card->qdio.default_out_queue = 0;
1342 static void qeth_set_multiple_write_queues(struct qeth_card *card)
1344 if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) &&
1345 (card->qdio.no_out_queues == 1)) {
1346 qeth_free_qdio_buffers(card);
1347 card->qdio.default_out_queue = 2;
1349 card->qdio.no_out_queues = 4;
1352 static void qeth_update_from_chp_desc(struct qeth_card *card)
1354 struct ccw_device *ccwdev;
1355 struct channel_path_desc *chp_dsc;
1357 QETH_DBF_TEXT(SETUP, 2, "chp_desc");
1359 ccwdev = card->data.ccwdev;
1360 chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
1364 card->info.func_level = 0x4100 + chp_dsc->desc;
1365 if (card->info.type == QETH_CARD_TYPE_IQD)
1368 /* CHPP field bit 6 == 1 -> single queue */
1369 if ((chp_dsc->chpp & 0x02) == 0x02)
1370 qeth_set_single_write_queues(card);
1372 qeth_set_multiple_write_queues(card);
1375 QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
1376 QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
1379 static void qeth_init_qdio_info(struct qeth_card *card)
1381 QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1382 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1384 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1385 if (card->info.type == QETH_CARD_TYPE_IQD)
1386 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
1388 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1389 card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1390 INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1391 INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1394 static void qeth_set_intial_options(struct qeth_card *card)
1396 card->options.route4.type = NO_ROUTER;
1397 card->options.route6.type = NO_ROUTER;
1398 card->options.fake_broadcast = 0;
1399 card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1400 card->options.performance_stats = 0;
1401 card->options.rx_sg_cb = QETH_RX_SG_CB;
1402 card->options.isolation = ISOLATION_MODE_NONE;
1403 card->options.cq = QETH_CQ_DISABLED;
1406 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1408 unsigned long flags;
1411 spin_lock_irqsave(&card->thread_mask_lock, flags);
1412 QETH_CARD_TEXT_(card, 4, " %02x%02x%02x",
1413 (u8) card->thread_start_mask,
1414 (u8) card->thread_allowed_mask,
1415 (u8) card->thread_running_mask);
1416 rc = (card->thread_start_mask & thread);
1417 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1421 static void qeth_start_kernel_thread(struct work_struct *work)
1423 struct task_struct *ts;
1424 struct qeth_card *card = container_of(work, struct qeth_card,
1425 kernel_thread_starter);
1426 QETH_CARD_TEXT(card , 2, "strthrd");
1428 if (card->read.state != CH_STATE_UP &&
1429 card->write.state != CH_STATE_UP)
1431 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
1432 ts = kthread_run(card->discipline->recover, (void *)card,
1435 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1436 qeth_clear_thread_running_bit(card,
1437 QETH_RECOVER_THREAD);
1442 static void qeth_buffer_reclaim_work(struct work_struct *);
1443 static int qeth_setup_card(struct qeth_card *card)
1446 QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1447 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1449 card->read.state = CH_STATE_DOWN;
1450 card->write.state = CH_STATE_DOWN;
1451 card->data.state = CH_STATE_DOWN;
1452 card->state = CARD_STATE_DOWN;
1453 card->lan_online = 0;
1454 card->read_or_write_problem = 0;
1456 spin_lock_init(&card->vlanlock);
1457 spin_lock_init(&card->mclock);
1458 spin_lock_init(&card->lock);
1459 spin_lock_init(&card->ip_lock);
1460 spin_lock_init(&card->thread_mask_lock);
1461 mutex_init(&card->conf_mutex);
1462 mutex_init(&card->discipline_mutex);
1463 card->thread_start_mask = 0;
1464 card->thread_allowed_mask = 0;
1465 card->thread_running_mask = 0;
1466 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1467 INIT_LIST_HEAD(&card->cmd_waiter_list);
1468 init_waitqueue_head(&card->wait_q);
1469 /* initial options */
1470 qeth_set_intial_options(card);
1471 /* IP address takeover */
1472 INIT_LIST_HEAD(&card->ipato.entries);
1473 card->ipato.enabled = 0;
1474 card->ipato.invert4 = 0;
1475 card->ipato.invert6 = 0;
1476 /* init QDIO stuff */
1477 qeth_init_qdio_info(card);
1478 INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
1479 INIT_WORK(&card->close_dev_work, qeth_close_dev_handler);
1483 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1485 struct qeth_card *card = container_of(slr, struct qeth_card,
1486 qeth_service_level);
1487 if (card->info.mcl_level[0])
1488 seq_printf(m, "qeth: %s firmware level %s\n",
1489 CARD_BUS_ID(card), card->info.mcl_level);
1492 static struct qeth_card *qeth_alloc_card(void)
1494 struct qeth_card *card;
1496 QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1497 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1500 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1501 if (qeth_setup_channel(&card->read))
1503 if (qeth_setup_channel(&card->write))
1505 card->options.layer2 = -1;
1506 card->qeth_service_level.seq_print = qeth_core_sl_print;
1507 register_service_level(&card->qeth_service_level);
1511 qeth_clean_channel(&card->read);
1518 static int qeth_determine_card_type(struct qeth_card *card)
1522 QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1524 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1525 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1526 while (known_devices[i][QETH_DEV_MODEL_IND]) {
1527 if ((CARD_RDEV(card)->id.dev_type ==
1528 known_devices[i][QETH_DEV_TYPE_IND]) &&
1529 (CARD_RDEV(card)->id.dev_model ==
1530 known_devices[i][QETH_DEV_MODEL_IND])) {
1531 card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
1532 card->qdio.no_out_queues =
1533 known_devices[i][QETH_QUEUE_NO_IND];
1534 card->qdio.no_in_queues = 1;
1535 card->info.is_multicast_different =
1536 known_devices[i][QETH_MULTICAST_IND];
1537 qeth_update_from_chp_desc(card);
1542 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1543 dev_err(&card->gdev->dev, "The adapter hardware is of an "
1548 static int qeth_clear_channel(struct qeth_channel *channel)
1550 unsigned long flags;
1551 struct qeth_card *card;
1554 card = CARD_FROM_CDEV(channel->ccwdev);
1555 QETH_CARD_TEXT(card, 3, "clearch");
1556 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1557 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1558 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1562 rc = wait_event_interruptible_timeout(card->wait_q,
1563 channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1564 if (rc == -ERESTARTSYS)
1566 if (channel->state != CH_STATE_STOPPED)
1568 channel->state = CH_STATE_DOWN;
1572 static int qeth_halt_channel(struct qeth_channel *channel)
1574 unsigned long flags;
1575 struct qeth_card *card;
1578 card = CARD_FROM_CDEV(channel->ccwdev);
1579 QETH_CARD_TEXT(card, 3, "haltch");
1580 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1581 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1582 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1586 rc = wait_event_interruptible_timeout(card->wait_q,
1587 channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1588 if (rc == -ERESTARTSYS)
1590 if (channel->state != CH_STATE_HALTED)
1595 static int qeth_halt_channels(struct qeth_card *card)
1597 int rc1 = 0, rc2 = 0, rc3 = 0;
1599 QETH_CARD_TEXT(card, 3, "haltchs");
1600 rc1 = qeth_halt_channel(&card->read);
1601 rc2 = qeth_halt_channel(&card->write);
1602 rc3 = qeth_halt_channel(&card->data);
1610 static int qeth_clear_channels(struct qeth_card *card)
1612 int rc1 = 0, rc2 = 0, rc3 = 0;
1614 QETH_CARD_TEXT(card, 3, "clearchs");
1615 rc1 = qeth_clear_channel(&card->read);
1616 rc2 = qeth_clear_channel(&card->write);
1617 rc3 = qeth_clear_channel(&card->data);
1625 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1629 QETH_CARD_TEXT(card, 3, "clhacrd");
1632 rc = qeth_halt_channels(card);
1635 return qeth_clear_channels(card);
1638 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1642 QETH_CARD_TEXT(card, 3, "qdioclr");
1643 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1644 QETH_QDIO_CLEANING)) {
1645 case QETH_QDIO_ESTABLISHED:
1646 if (card->info.type == QETH_CARD_TYPE_IQD)
1647 rc = qdio_shutdown(CARD_DDEV(card),
1648 QDIO_FLAG_CLEANUP_USING_HALT);
1650 rc = qdio_shutdown(CARD_DDEV(card),
1651 QDIO_FLAG_CLEANUP_USING_CLEAR);
1653 QETH_CARD_TEXT_(card, 3, "1err%d", rc);
1654 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1656 case QETH_QDIO_CLEANING:
1661 rc = qeth_clear_halt_card(card, use_halt);
1663 QETH_CARD_TEXT_(card, 3, "2err%d", rc);
1664 card->state = CARD_STATE_DOWN;
1667 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1669 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1675 struct qeth_channel *channel = &card->data;
1676 unsigned long flags;
1679 * scan for RCD command in extended SenseID data
1681 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1682 if (!ciw || ciw->cmd == 0)
1684 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1688 channel->ccw.cmd_code = ciw->cmd;
1689 channel->ccw.cda = (__u32) __pa(rcd_buf);
1690 channel->ccw.count = ciw->count;
1691 channel->ccw.flags = CCW_FLAG_SLI;
1692 channel->state = CH_STATE_RCD;
1693 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1694 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1695 QETH_RCD_PARM, LPM_ANYPATH, 0,
1697 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1699 wait_event(card->wait_q,
1700 (channel->state == CH_STATE_RCD_DONE ||
1701 channel->state == CH_STATE_DOWN));
1702 if (channel->state == CH_STATE_DOWN)
1705 channel->state = CH_STATE_DOWN;
1711 *length = ciw->count;
1717 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1719 QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1720 card->info.chpid = prcd[30];
1721 card->info.unit_addr2 = prcd[31];
1722 card->info.cula = prcd[63];
1723 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1724 (prcd[0x11] == _ascebc['M']));
1727 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1729 QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1731 if (prcd[74] == 0xF0 && prcd[75] == 0xF0 &&
1732 prcd[76] >= 0xF1 && prcd[76] <= 0xF4) {
1733 card->info.blkt.time_total = 0;
1734 card->info.blkt.inter_packet = 0;
1735 card->info.blkt.inter_packet_jumbo = 0;
1737 card->info.blkt.time_total = 250;
1738 card->info.blkt.inter_packet = 5;
1739 card->info.blkt.inter_packet_jumbo = 15;
1743 static void qeth_init_tokens(struct qeth_card *card)
1745 card->token.issuer_rm_w = 0x00010103UL;
1746 card->token.cm_filter_w = 0x00010108UL;
1747 card->token.cm_connection_w = 0x0001010aUL;
1748 card->token.ulp_filter_w = 0x0001010bUL;
1749 card->token.ulp_connection_w = 0x0001010dUL;
1752 static void qeth_init_func_level(struct qeth_card *card)
1754 switch (card->info.type) {
1755 case QETH_CARD_TYPE_IQD:
1756 card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
1758 case QETH_CARD_TYPE_OSD:
1759 case QETH_CARD_TYPE_OSN:
1760 card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
1767 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1768 void (*idx_reply_cb)(struct qeth_channel *,
1769 struct qeth_cmd_buffer *))
1771 struct qeth_cmd_buffer *iob;
1772 unsigned long flags;
1774 struct qeth_card *card;
1776 QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1777 card = CARD_FROM_CDEV(channel->ccwdev);
1778 iob = qeth_get_buffer(channel);
1781 iob->callback = idx_reply_cb;
1782 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1783 channel->ccw.count = QETH_BUFSIZE;
1784 channel->ccw.cda = (__u32) __pa(iob->data);
1786 wait_event(card->wait_q,
1787 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1788 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1789 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1790 rc = ccw_device_start(channel->ccwdev,
1791 &channel->ccw, (addr_t) iob, 0, 0);
1792 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1795 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1796 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1797 atomic_set(&channel->irq_pending, 0);
1798 wake_up(&card->wait_q);
1801 rc = wait_event_interruptible_timeout(card->wait_q,
1802 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1803 if (rc == -ERESTARTSYS)
1805 if (channel->state != CH_STATE_UP) {
1807 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1808 qeth_clear_cmd_buffers(channel);
1814 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1815 void (*idx_reply_cb)(struct qeth_channel *,
1816 struct qeth_cmd_buffer *))
1818 struct qeth_card *card;
1819 struct qeth_cmd_buffer *iob;
1820 unsigned long flags;
1824 struct ccw_dev_id temp_devid;
1826 card = CARD_FROM_CDEV(channel->ccwdev);
1828 QETH_DBF_TEXT(SETUP, 2, "idxactch");
1830 iob = qeth_get_buffer(channel);
1833 iob->callback = idx_reply_cb;
1834 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1835 channel->ccw.count = IDX_ACTIVATE_SIZE;
1836 channel->ccw.cda = (__u32) __pa(iob->data);
1837 if (channel == &card->write) {
1838 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1839 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1840 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1841 card->seqno.trans_hdr++;
1843 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1844 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1845 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1847 tmp = ((__u8)card->info.portno) | 0x80;
1848 memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1849 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1850 &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1851 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1852 &card->info.func_level, sizeof(__u16));
1853 ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1854 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1855 temp = (card->info.cula << 8) + card->info.unit_addr2;
1856 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1858 wait_event(card->wait_q,
1859 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1860 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1861 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1862 rc = ccw_device_start(channel->ccwdev,
1863 &channel->ccw, (addr_t) iob, 0, 0);
1864 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1867 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1869 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1870 atomic_set(&channel->irq_pending, 0);
1871 wake_up(&card->wait_q);
1874 rc = wait_event_interruptible_timeout(card->wait_q,
1875 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1876 if (rc == -ERESTARTSYS)
1878 if (channel->state != CH_STATE_ACTIVATING) {
1879 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1880 " failed to recover an error on the device\n");
1881 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1882 dev_name(&channel->ccwdev->dev));
1883 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1884 qeth_clear_cmd_buffers(channel);
1887 return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1890 static int qeth_peer_func_level(int level)
1892 if ((level & 0xff) == 8)
1893 return (level & 0xff) + 0x400;
1894 if (((level >> 8) & 3) == 1)
1895 return (level & 0xff) + 0x200;
1899 static void qeth_idx_write_cb(struct qeth_channel *channel,
1900 struct qeth_cmd_buffer *iob)
1902 struct qeth_card *card;
1905 QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1907 if (channel->state == CH_STATE_DOWN) {
1908 channel->state = CH_STATE_ACTIVATING;
1911 card = CARD_FROM_CDEV(channel->ccwdev);
1913 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1914 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
1915 dev_err(&card->write.ccwdev->dev,
1916 "The adapter is used exclusively by another "
1919 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1920 " negative reply\n",
1921 dev_name(&card->write.ccwdev->dev));
1924 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1925 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1926 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1927 "function level mismatch (sent: 0x%x, received: "
1928 "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1929 card->info.func_level, temp);
1932 channel->state = CH_STATE_UP;
1934 qeth_release_buffer(channel, iob);
1937 static void qeth_idx_read_cb(struct qeth_channel *channel,
1938 struct qeth_cmd_buffer *iob)
1940 struct qeth_card *card;
1943 QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1944 if (channel->state == CH_STATE_DOWN) {
1945 channel->state = CH_STATE_ACTIVATING;
1949 card = CARD_FROM_CDEV(channel->ccwdev);
1950 if (qeth_check_idx_response(card, iob->data))
1953 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1954 switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
1955 case QETH_IDX_ACT_ERR_EXCL:
1956 dev_err(&card->write.ccwdev->dev,
1957 "The adapter is used exclusively by another "
1960 case QETH_IDX_ACT_ERR_AUTH:
1961 case QETH_IDX_ACT_ERR_AUTH_USER:
1962 dev_err(&card->read.ccwdev->dev,
1963 "Setting the device online failed because of "
1964 "insufficient authorization\n");
1967 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1968 " negative reply\n",
1969 dev_name(&card->read.ccwdev->dev));
1971 QETH_CARD_TEXT_(card, 2, "idxread%c",
1972 QETH_IDX_ACT_CAUSE_CODE(iob->data));
1976 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1977 if (temp != qeth_peer_func_level(card->info.func_level)) {
1978 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1979 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1980 dev_name(&card->read.ccwdev->dev),
1981 card->info.func_level, temp);
1984 memcpy(&card->token.issuer_rm_r,
1985 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1986 QETH_MPC_TOKEN_LENGTH);
1987 memcpy(&card->info.mcl_level[0],
1988 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1989 channel->state = CH_STATE_UP;
1991 qeth_release_buffer(channel, iob);
1994 void qeth_prepare_control_data(struct qeth_card *card, int len,
1995 struct qeth_cmd_buffer *iob)
1997 qeth_setup_ccw(&card->write, iob->data, len);
1998 iob->callback = qeth_release_buffer;
2000 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
2001 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
2002 card->seqno.trans_hdr++;
2003 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
2004 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
2005 card->seqno.pdu_hdr++;
2006 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
2007 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
2008 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
2010 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
2013 * qeth_send_control_data() - send control command to the card
2014 * @card: qeth_card structure pointer
2015 * @len: size of the command buffer
2016 * @iob: qeth_cmd_buffer pointer
2017 * @reply_cb: callback function pointer
2018 * @cb_card: pointer to the qeth_card structure
2019 * @cb_reply: pointer to the qeth_reply structure
2020 * @cb_cmd: pointer to the original iob for non-IPA
2021 * commands, or to the qeth_ipa_cmd structure
2022 * for the IPA commands.
2023 * @reply_param: private pointer passed to the callback
2025 * Returns the value of the `return_code' field of the response
2026 * block returned from the hardware, or other error indication.
2027 * Value of zero indicates successful execution of the command.
2029 * Callback function gets called one or more times, with cb_cmd
2030 * pointing to the response returned by the hardware. Callback
2031 * function must return non-zero if more reply blocks are expected,
2032 * and zero if the last or only reply block is received. Callback
2033 * function can get the value of the reply_param pointer from the
2034 * field 'param' of the structure qeth_reply.
2037 int qeth_send_control_data(struct qeth_card *card, int len,
2038 struct qeth_cmd_buffer *iob,
2039 int (*reply_cb)(struct qeth_card *cb_card,
2040 struct qeth_reply *cb_reply,
2041 unsigned long cb_cmd),
2045 unsigned long flags;
2046 struct qeth_reply *reply = NULL;
2047 unsigned long timeout, event_timeout;
2048 struct qeth_ipa_cmd *cmd;
2050 QETH_CARD_TEXT(card, 2, "sendctl");
2052 if (card->read_or_write_problem) {
2053 qeth_release_buffer(iob->channel, iob);
2056 reply = qeth_alloc_reply(card);
2060 reply->callback = reply_cb;
2061 reply->param = reply_param;
2062 if (card->state == CARD_STATE_DOWN)
2063 reply->seqno = QETH_IDX_COMMAND_SEQNO;
2065 reply->seqno = card->seqno.ipa++;
2066 init_waitqueue_head(&reply->wait_q);
2067 spin_lock_irqsave(&card->lock, flags);
2068 list_add_tail(&reply->list, &card->cmd_waiter_list);
2069 spin_unlock_irqrestore(&card->lock, flags);
2070 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
2072 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
2073 qeth_prepare_control_data(card, len, iob);
2075 if (IS_IPA(iob->data))
2076 event_timeout = QETH_IPA_TIMEOUT;
2078 event_timeout = QETH_TIMEOUT;
2079 timeout = jiffies + event_timeout;
2081 QETH_CARD_TEXT(card, 6, "noirqpnd");
2082 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
2083 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
2084 (addr_t) iob, 0, 0);
2085 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
2087 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2088 "ccw_device_start rc = %i\n",
2089 dev_name(&card->write.ccwdev->dev), rc);
2090 QETH_CARD_TEXT_(card, 2, " err%d", rc);
2091 spin_lock_irqsave(&card->lock, flags);
2092 list_del_init(&reply->list);
2093 qeth_put_reply(reply);
2094 spin_unlock_irqrestore(&card->lock, flags);
2095 qeth_release_buffer(iob->channel, iob);
2096 atomic_set(&card->write.irq_pending, 0);
2097 wake_up(&card->wait_q);
2101 /* we have only one long running ipassist, since we can ensure
2102 process context of this command we can sleep */
2103 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2104 if ((cmd->hdr.command == IPA_CMD_SETIP) &&
2105 (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
2106 if (!wait_event_timeout(reply->wait_q,
2107 atomic_read(&reply->received), event_timeout))
2110 while (!atomic_read(&reply->received)) {
2111 if (time_after(jiffies, timeout))
2117 if (reply->rc == -EIO)
2120 qeth_put_reply(reply);
2125 spin_lock_irqsave(&reply->card->lock, flags);
2126 list_del_init(&reply->list);
2127 spin_unlock_irqrestore(&reply->card->lock, flags);
2128 atomic_inc(&reply->received);
2130 atomic_set(&card->write.irq_pending, 0);
2131 qeth_release_buffer(iob->channel, iob);
2132 card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
2134 qeth_put_reply(reply);
2137 EXPORT_SYMBOL_GPL(qeth_send_control_data);
2139 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2142 struct qeth_cmd_buffer *iob;
2144 QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
2146 iob = (struct qeth_cmd_buffer *) data;
2147 memcpy(&card->token.cm_filter_r,
2148 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2149 QETH_MPC_TOKEN_LENGTH);
2150 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2154 static int qeth_cm_enable(struct qeth_card *card)
2157 struct qeth_cmd_buffer *iob;
2159 QETH_DBF_TEXT(SETUP, 2, "cmenable");
2161 iob = qeth_wait_for_buffer(&card->write);
2162 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2163 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2164 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2165 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2166 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2168 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2169 qeth_cm_enable_cb, NULL);
2173 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2177 struct qeth_cmd_buffer *iob;
2179 QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
2181 iob = (struct qeth_cmd_buffer *) data;
2182 memcpy(&card->token.cm_connection_r,
2183 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2184 QETH_MPC_TOKEN_LENGTH);
2185 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2189 static int qeth_cm_setup(struct qeth_card *card)
2192 struct qeth_cmd_buffer *iob;
2194 QETH_DBF_TEXT(SETUP, 2, "cmsetup");
2196 iob = qeth_wait_for_buffer(&card->write);
2197 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2198 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2199 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2200 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2201 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2202 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2203 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2204 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2205 qeth_cm_setup_cb, NULL);
2210 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
2212 switch (card->info.type) {
2213 case QETH_CARD_TYPE_UNKNOWN:
2215 case QETH_CARD_TYPE_IQD:
2216 return card->info.max_mtu;
2217 case QETH_CARD_TYPE_OSD:
2218 switch (card->info.link_type) {
2219 case QETH_LINK_TYPE_HSTR:
2220 case QETH_LINK_TYPE_LANE_TR:
2223 return card->options.layer2 ? 1500 : 1492;
2225 case QETH_CARD_TYPE_OSM:
2226 case QETH_CARD_TYPE_OSX:
2227 return card->options.layer2 ? 1500 : 1492;
2233 static inline int qeth_get_mtu_outof_framesize(int framesize)
2235 switch (framesize) {
2249 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
2251 switch (card->info.type) {
2252 case QETH_CARD_TYPE_OSD:
2253 case QETH_CARD_TYPE_OSM:
2254 case QETH_CARD_TYPE_OSX:
2255 case QETH_CARD_TYPE_IQD:
2256 return ((mtu >= 576) &&
2257 (mtu <= card->info.max_mtu));
2258 case QETH_CARD_TYPE_OSN:
2259 case QETH_CARD_TYPE_UNKNOWN:
2265 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2269 __u16 mtu, framesize;
2272 struct qeth_cmd_buffer *iob;
2274 QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
2276 iob = (struct qeth_cmd_buffer *) data;
2277 memcpy(&card->token.ulp_filter_r,
2278 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2279 QETH_MPC_TOKEN_LENGTH);
2280 if (card->info.type == QETH_CARD_TYPE_IQD) {
2281 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2282 mtu = qeth_get_mtu_outof_framesize(framesize);
2285 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2288 if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
2289 /* frame size has changed */
2291 ((card->dev->mtu == card->info.initial_mtu) ||
2292 (card->dev->mtu > mtu)))
2293 card->dev->mtu = mtu;
2294 qeth_free_qdio_buffers(card);
2296 card->info.initial_mtu = mtu;
2297 card->info.max_mtu = mtu;
2298 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2300 card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
2302 card->info.initial_mtu = min(card->info.max_mtu,
2303 qeth_get_initial_mtu_for_card(card));
2304 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2307 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2308 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2310 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2311 card->info.link_type = link_type;
2313 card->info.link_type = 0;
2314 QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
2315 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2319 static int qeth_ulp_enable(struct qeth_card *card)
2323 struct qeth_cmd_buffer *iob;
2325 /*FIXME: trace view callbacks*/
2326 QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
2328 iob = qeth_wait_for_buffer(&card->write);
2329 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2331 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2332 (__u8) card->info.portno;
2333 if (card->options.layer2)
2334 if (card->info.type == QETH_CARD_TYPE_OSN)
2335 prot_type = QETH_PROT_OSN2;
2337 prot_type = QETH_PROT_LAYER2;
2339 prot_type = QETH_PROT_TCPIP;
2341 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
2342 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2343 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2344 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2345 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2346 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2347 qeth_ulp_enable_cb, NULL);
2352 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2355 struct qeth_cmd_buffer *iob;
2357 QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
2359 iob = (struct qeth_cmd_buffer *) data;
2360 memcpy(&card->token.ulp_connection_r,
2361 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2362 QETH_MPC_TOKEN_LENGTH);
2363 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2365 QETH_DBF_TEXT(SETUP, 2, "olmlimit");
2366 dev_err(&card->gdev->dev, "A connection could not be "
2367 "established because of an OLM limit\n");
2370 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2374 static int qeth_ulp_setup(struct qeth_card *card)
2378 struct qeth_cmd_buffer *iob;
2379 struct ccw_dev_id dev_id;
2381 QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2383 iob = qeth_wait_for_buffer(&card->write);
2384 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2386 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2387 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2388 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2389 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2390 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2391 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2393 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2394 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2395 temp = (card->info.cula << 8) + card->info.unit_addr2;
2396 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2397 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2398 qeth_ulp_setup_cb, NULL);
2402 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx)
2405 struct qeth_qdio_out_buffer *newbuf;
2408 newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC);
2413 newbuf->buffer = q->qdio_bufs[bidx];
2414 skb_queue_head_init(&newbuf->skb_list);
2415 lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key);
2418 newbuf->next_pending = q->bufs[bidx];
2419 atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY);
2420 q->bufs[bidx] = newbuf;
2422 q->bufstates[bidx].user = newbuf;
2423 QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx);
2424 QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf);
2425 QETH_CARD_TEXT_(q->card, 2, "%lx",
2426 (long) newbuf->next_pending);
2432 static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q *q)
2437 qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
2441 static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void)
2443 struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
2448 if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
2455 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2459 QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2461 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2462 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2465 QETH_DBF_TEXT(SETUP, 2, "inq");
2466 card->qdio.in_q = qeth_alloc_qdio_queue();
2467 if (!card->qdio.in_q)
2470 /* inbound buffer pool */
2471 if (qeth_alloc_buffer_pool(card))
2476 kzalloc(card->qdio.no_out_queues *
2477 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2478 if (!card->qdio.out_qs)
2480 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2481 card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf();
2482 if (!card->qdio.out_qs[i])
2484 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2485 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2486 card->qdio.out_qs[i]->queue_no = i;
2487 /* give outbound qeth_qdio_buffers their qdio_buffers */
2488 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2489 WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
2490 if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
2491 goto out_freeoutqbufs;
2496 if (qeth_alloc_cq(card))
2504 kmem_cache_free(qeth_qdio_outbuf_cache,
2505 card->qdio.out_qs[i]->bufs[j]);
2506 card->qdio.out_qs[i]->bufs[j] = NULL;
2510 qeth_free_qdio_out_buf(card->qdio.out_qs[--i]);
2511 qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
2513 kfree(card->qdio.out_qs);
2514 card->qdio.out_qs = NULL;
2516 qeth_free_buffer_pool(card);
2518 qeth_free_qdio_queue(card->qdio.in_q);
2519 card->qdio.in_q = NULL;
2521 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2525 static void qeth_free_qdio_buffers(struct qeth_card *card)
2529 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
2530 QETH_QDIO_UNINITIALIZED)
2534 cancel_delayed_work_sync(&card->buffer_reclaim_work);
2535 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2536 if (card->qdio.in_q->bufs[j].rx_skb)
2537 dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
2539 qeth_free_qdio_queue(card->qdio.in_q);
2540 card->qdio.in_q = NULL;
2541 /* inbound buffer pool */
2542 qeth_free_buffer_pool(card);
2543 /* free outbound qdio_qs */
2544 if (card->qdio.out_qs) {
2545 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2546 qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
2547 qeth_free_qdio_out_buf(card->qdio.out_qs[i]);
2549 kfree(card->qdio.out_qs);
2550 card->qdio.out_qs = NULL;
2554 static void qeth_create_qib_param_field(struct qeth_card *card,
2558 param_field[0] = _ascebc['P'];
2559 param_field[1] = _ascebc['C'];
2560 param_field[2] = _ascebc['I'];
2561 param_field[3] = _ascebc['T'];
2562 *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card);
2563 *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card);
2564 *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card);
2567 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2570 param_field[16] = _ascebc['B'];
2571 param_field[17] = _ascebc['L'];
2572 param_field[18] = _ascebc['K'];
2573 param_field[19] = _ascebc['T'];
2574 *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total;
2575 *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet;
2576 *((unsigned int *) (¶m_field[28])) =
2577 card->info.blkt.inter_packet_jumbo;
2580 static int qeth_qdio_activate(struct qeth_card *card)
2582 QETH_DBF_TEXT(SETUP, 3, "qdioact");
2583 return qdio_activate(CARD_DDEV(card));
2586 static int qeth_dm_act(struct qeth_card *card)
2589 struct qeth_cmd_buffer *iob;
2591 QETH_DBF_TEXT(SETUP, 2, "dmact");
2593 iob = qeth_wait_for_buffer(&card->write);
2594 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2596 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2597 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2598 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2599 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2600 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2604 static int qeth_mpc_initialize(struct qeth_card *card)
2608 QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2610 rc = qeth_issue_next_read(card);
2612 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2615 rc = qeth_cm_enable(card);
2617 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2620 rc = qeth_cm_setup(card);
2622 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2625 rc = qeth_ulp_enable(card);
2627 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2630 rc = qeth_ulp_setup(card);
2632 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2635 rc = qeth_alloc_qdio_buffers(card);
2637 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2640 rc = qeth_qdio_establish(card);
2642 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2643 qeth_free_qdio_buffers(card);
2646 rc = qeth_qdio_activate(card);
2648 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2651 rc = qeth_dm_act(card);
2653 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2659 qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2660 qdio_free(CARD_DDEV(card));
2664 void qeth_print_status_message(struct qeth_card *card)
2666 switch (card->info.type) {
2667 case QETH_CARD_TYPE_OSD:
2668 case QETH_CARD_TYPE_OSM:
2669 case QETH_CARD_TYPE_OSX:
2670 /* VM will use a non-zero first character
2671 * to indicate a HiperSockets like reporting
2672 * of the level OSA sets the first character to zero
2674 if (!card->info.mcl_level[0]) {
2675 sprintf(card->info.mcl_level, "%02x%02x",
2676 card->info.mcl_level[2],
2677 card->info.mcl_level[3]);
2681 case QETH_CARD_TYPE_IQD:
2682 if ((card->info.guestlan) ||
2683 (card->info.mcl_level[0] & 0x80)) {
2684 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2685 card->info.mcl_level[0]];
2686 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2687 card->info.mcl_level[1]];
2688 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2689 card->info.mcl_level[2]];
2690 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2691 card->info.mcl_level[3]];
2692 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2696 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2698 dev_info(&card->gdev->dev,
2699 "Device is a%s card%s%s%s\nwith link type %s.\n",
2700 qeth_get_cardname(card),
2701 (card->info.mcl_level[0]) ? " (level: " : "",
2702 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2703 (card->info.mcl_level[0]) ? ")" : "",
2704 qeth_get_cardname_short(card));
2706 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2708 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2710 struct qeth_buffer_pool_entry *entry;
2712 QETH_CARD_TEXT(card, 5, "inwrklst");
2714 list_for_each_entry(entry,
2715 &card->qdio.init_pool.entry_list, init_list) {
2716 qeth_put_buffer_pool_entry(card, entry);
2720 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2721 struct qeth_card *card)
2723 struct list_head *plh;
2724 struct qeth_buffer_pool_entry *entry;
2728 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2731 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2732 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2734 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2735 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2741 list_del_init(&entry->list);
2746 /* no free buffer in pool so take first one and swap pages */
2747 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2748 struct qeth_buffer_pool_entry, list);
2749 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2750 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2751 page = alloc_page(GFP_ATOMIC);
2755 free_page((unsigned long)entry->elements[i]);
2756 entry->elements[i] = page_address(page);
2757 if (card->options.performance_stats)
2758 card->perf_stats.sg_alloc_page_rx++;
2762 list_del_init(&entry->list);
2766 static int qeth_init_input_buffer(struct qeth_card *card,
2767 struct qeth_qdio_buffer *buf)
2769 struct qeth_buffer_pool_entry *pool_entry;
2772 if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) {
2773 buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
2778 pool_entry = qeth_find_free_buffer_pool_entry(card);
2783 * since the buffer is accessed only from the input_tasklet
2784 * there shouldn't be a need to synchronize; also, since we use
2785 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2789 buf->pool_entry = pool_entry;
2790 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2791 buf->buffer->element[i].length = PAGE_SIZE;
2792 buf->buffer->element[i].addr = pool_entry->elements[i];
2793 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2794 buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY;
2796 buf->buffer->element[i].eflags = 0;
2797 buf->buffer->element[i].sflags = 0;
2802 int qeth_init_qdio_queues(struct qeth_card *card)
2807 QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2810 qdio_reset_buffers(card->qdio.in_q->qdio_bufs,
2811 QDIO_MAX_BUFFERS_PER_Q);
2812 qeth_initialize_working_pool_list(card);
2813 /*give only as many buffers to hardware as we have buffer pool entries*/
2814 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2815 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2816 card->qdio.in_q->next_buf_to_init =
2817 card->qdio.in_buf_pool.buf_count - 1;
2818 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2819 card->qdio.in_buf_pool.buf_count - 1);
2821 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2826 rc = qeth_cq_init(card);
2831 /* outbound queue */
2832 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2833 qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs,
2834 QDIO_MAX_BUFFERS_PER_Q);
2835 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2836 qeth_clear_output_buffer(card->qdio.out_qs[i],
2837 card->qdio.out_qs[i]->bufs[j],
2838 QETH_QDIO_BUF_EMPTY);
2840 card->qdio.out_qs[i]->card = card;
2841 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2842 card->qdio.out_qs[i]->do_pack = 0;
2843 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2844 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2845 atomic_set(&card->qdio.out_qs[i]->state,
2846 QETH_OUT_Q_UNLOCKED);
2850 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2852 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2854 switch (link_type) {
2855 case QETH_LINK_TYPE_HSTR:
2862 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2863 struct qeth_ipa_cmd *cmd, __u8 command,
2864 enum qeth_prot_versions prot)
2866 memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2867 cmd->hdr.command = command;
2868 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2869 cmd->hdr.seqno = card->seqno.ipa;
2870 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2871 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2872 if (card->options.layer2)
2873 cmd->hdr.prim_version_no = 2;
2875 cmd->hdr.prim_version_no = 1;
2876 cmd->hdr.param_count = 1;
2877 cmd->hdr.prot_version = prot;
2878 cmd->hdr.ipa_supported = 0;
2879 cmd->hdr.ipa_enabled = 0;
2882 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2883 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2885 struct qeth_cmd_buffer *iob;
2886 struct qeth_ipa_cmd *cmd;
2888 iob = qeth_get_buffer(&card->write);
2890 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2891 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2893 dev_warn(&card->gdev->dev,
2894 "The qeth driver ran out of channel command buffers\n");
2895 QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers",
2896 dev_name(&card->gdev->dev));
2901 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2903 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2906 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2907 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2908 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2909 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2911 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2914 * qeth_send_ipa_cmd() - send an IPA command
2916 * See qeth_send_control_data() for explanation of the arguments.
2919 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2920 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2927 QETH_CARD_TEXT(card, 4, "sendipa");
2929 if (card->options.layer2)
2930 if (card->info.type == QETH_CARD_TYPE_OSN)
2931 prot_type = QETH_PROT_OSN2;
2933 prot_type = QETH_PROT_LAYER2;
2935 prot_type = QETH_PROT_TCPIP;
2936 qeth_prepare_ipa_cmd(card, iob, prot_type);
2937 rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2938 iob, reply_cb, reply_param);
2940 qeth_clear_ipacmd_list(card);
2941 qeth_schedule_recovery(card);
2945 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2947 int qeth_send_startlan(struct qeth_card *card)
2950 struct qeth_cmd_buffer *iob;
2952 QETH_DBF_TEXT(SETUP, 2, "strtlan");
2954 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
2957 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2960 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2962 static int qeth_default_setadapterparms_cb(struct qeth_card *card,
2963 struct qeth_reply *reply, unsigned long data)
2965 struct qeth_ipa_cmd *cmd;
2967 QETH_CARD_TEXT(card, 4, "defadpcb");
2969 cmd = (struct qeth_ipa_cmd *) data;
2970 if (cmd->hdr.return_code == 0)
2971 cmd->hdr.return_code =
2972 cmd->data.setadapterparms.hdr.return_code;
2976 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2977 struct qeth_reply *reply, unsigned long data)
2979 struct qeth_ipa_cmd *cmd;
2981 QETH_CARD_TEXT(card, 3, "quyadpcb");
2983 cmd = (struct qeth_ipa_cmd *) data;
2984 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
2985 card->info.link_type =
2986 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2987 QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
2989 card->options.adp.supported_funcs =
2990 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2991 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2994 static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2995 __u32 command, __u32 cmdlen)
2997 struct qeth_cmd_buffer *iob;
2998 struct qeth_ipa_cmd *cmd;
3000 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
3003 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3004 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
3005 cmd->data.setadapterparms.hdr.command_code = command;
3006 cmd->data.setadapterparms.hdr.used_total = 1;
3007 cmd->data.setadapterparms.hdr.seq_no = 1;
3013 int qeth_query_setadapterparms(struct qeth_card *card)
3016 struct qeth_cmd_buffer *iob;
3018 QETH_CARD_TEXT(card, 3, "queryadp");
3019 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
3020 sizeof(struct qeth_ipacmd_setadpparms));
3023 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
3026 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
3028 static int qeth_query_ipassists_cb(struct qeth_card *card,
3029 struct qeth_reply *reply, unsigned long data)
3031 struct qeth_ipa_cmd *cmd;
3033 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
3035 cmd = (struct qeth_ipa_cmd *) data;
3037 switch (cmd->hdr.return_code) {
3038 case IPA_RC_NOTSUPP:
3039 case IPA_RC_L2_UNSUPPORTED_CMD:
3040 QETH_DBF_TEXT(SETUP, 2, "ipaunsup");
3041 card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS;
3042 card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS;
3045 if (cmd->hdr.return_code) {
3046 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
3048 dev_name(&card->gdev->dev),
3049 cmd->hdr.return_code);
3054 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
3055 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
3056 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
3057 } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) {
3058 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
3059 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
3061 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
3062 "\n", dev_name(&card->gdev->dev));
3066 int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
3069 struct qeth_cmd_buffer *iob;
3071 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
3072 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
3075 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
3078 EXPORT_SYMBOL_GPL(qeth_query_ipassists);
3080 static int qeth_query_switch_attributes_cb(struct qeth_card *card,
3081 struct qeth_reply *reply, unsigned long data)
3083 struct qeth_ipa_cmd *cmd;
3084 struct qeth_switch_info *sw_info;
3085 struct qeth_query_switch_attributes *attrs;
3087 QETH_CARD_TEXT(card, 2, "qswiatcb");
3088 cmd = (struct qeth_ipa_cmd *) data;
3089 sw_info = (struct qeth_switch_info *)reply->param;
3090 if (cmd->data.setadapterparms.hdr.return_code == 0) {
3091 attrs = &cmd->data.setadapterparms.data.query_switch_attributes;
3092 sw_info->capabilities = attrs->capabilities;
3093 sw_info->settings = attrs->settings;
3094 QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities,
3097 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3102 int qeth_query_switch_attributes(struct qeth_card *card,
3103 struct qeth_switch_info *sw_info)
3105 struct qeth_cmd_buffer *iob;
3107 QETH_CARD_TEXT(card, 2, "qswiattr");
3108 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES))
3110 if (!netif_carrier_ok(card->dev))
3112 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES,
3113 sizeof(struct qeth_ipacmd_setadpparms_hdr));
3116 return qeth_send_ipa_cmd(card, iob,
3117 qeth_query_switch_attributes_cb, sw_info);
3119 EXPORT_SYMBOL_GPL(qeth_query_switch_attributes);
3121 static int qeth_query_setdiagass_cb(struct qeth_card *card,
3122 struct qeth_reply *reply, unsigned long data)
3124 struct qeth_ipa_cmd *cmd;
3127 cmd = (struct qeth_ipa_cmd *)data;
3128 rc = cmd->hdr.return_code;
3130 QETH_CARD_TEXT_(card, 2, "diagq:%x", rc);
3132 card->info.diagass_support = cmd->data.diagass.ext;
3136 static int qeth_query_setdiagass(struct qeth_card *card)
3138 struct qeth_cmd_buffer *iob;
3139 struct qeth_ipa_cmd *cmd;
3141 QETH_DBF_TEXT(SETUP, 2, "qdiagass");
3142 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3145 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3146 cmd->data.diagass.subcmd_len = 16;
3147 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY;
3148 return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL);
3151 static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
3153 unsigned long info = get_zeroed_page(GFP_KERNEL);
3154 struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info;
3155 struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info;
3156 struct ccw_dev_id ccwid;
3159 tid->chpid = card->info.chpid;
3160 ccw_device_get_id(CARD_RDEV(card), &ccwid);
3161 tid->ssid = ccwid.ssid;
3162 tid->devno = ccwid.devno;
3165 level = stsi(NULL, 0, 0, 0);
3166 if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0))
3167 tid->lparnr = info222->lpar_number;
3168 if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) {
3169 EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name));
3170 memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));
3176 static int qeth_hw_trap_cb(struct qeth_card *card,
3177 struct qeth_reply *reply, unsigned long data)
3179 struct qeth_ipa_cmd *cmd;
3182 cmd = (struct qeth_ipa_cmd *)data;
3183 rc = cmd->hdr.return_code;
3185 QETH_CARD_TEXT_(card, 2, "trapc:%x", rc);
3189 int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action)
3191 struct qeth_cmd_buffer *iob;
3192 struct qeth_ipa_cmd *cmd;
3194 QETH_DBF_TEXT(SETUP, 2, "diagtrap");
3195 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3198 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3199 cmd->data.diagass.subcmd_len = 80;
3200 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP;
3201 cmd->data.diagass.type = 1;
3202 cmd->data.diagass.action = action;
3204 case QETH_DIAGS_TRAP_ARM:
3205 cmd->data.diagass.options = 0x0003;
3206 cmd->data.diagass.ext = 0x00010000 +
3207 sizeof(struct qeth_trap_id);
3208 qeth_get_trap_id(card,
3209 (struct qeth_trap_id *)cmd->data.diagass.cdata);
3211 case QETH_DIAGS_TRAP_DISARM:
3212 cmd->data.diagass.options = 0x0001;
3214 case QETH_DIAGS_TRAP_CAPTURE:
3217 return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL);
3219 EXPORT_SYMBOL_GPL(qeth_hw_trap);
3221 int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
3222 unsigned int qdio_error, const char *dbftext)
3225 QETH_CARD_TEXT(card, 2, dbftext);
3226 QETH_CARD_TEXT_(card, 2, " F15=%02X",
3227 buf->element[15].sflags);
3228 QETH_CARD_TEXT_(card, 2, " F14=%02X",
3229 buf->element[14].sflags);
3230 QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
3231 if ((buf->element[15].sflags) == 0x12) {
3232 card->stats.rx_dropped++;
3239 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
3241 static void qeth_buffer_reclaim_work(struct work_struct *work)
3243 struct qeth_card *card = container_of(work, struct qeth_card,
3244 buffer_reclaim_work.work);
3246 QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index);
3247 qeth_queue_input_buffer(card, card->reclaim_index);
3250 void qeth_queue_input_buffer(struct qeth_card *card, int index)
3252 struct qeth_qdio_q *queue = card->qdio.in_q;
3253 struct list_head *lh;
3259 count = (index < queue->next_buf_to_init)?
3260 card->qdio.in_buf_pool.buf_count -
3261 (queue->next_buf_to_init - index) :
3262 card->qdio.in_buf_pool.buf_count -
3263 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
3264 /* only requeue at a certain threshold to avoid SIGAs */
3265 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
3266 for (i = queue->next_buf_to_init;
3267 i < queue->next_buf_to_init + count; ++i) {
3268 if (qeth_init_input_buffer(card,
3269 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
3276 if (newcount < count) {
3277 /* we are in memory shortage so we switch back to
3278 traditional skb allocation and drop packages */
3279 atomic_set(&card->force_alloc_skb, 3);
3282 atomic_add_unless(&card->force_alloc_skb, -1, 0);
3287 list_for_each(lh, &card->qdio.in_buf_pool.entry_list)
3289 if (i == card->qdio.in_buf_pool.buf_count) {
3290 QETH_CARD_TEXT(card, 2, "qsarbw");
3291 card->reclaim_index = index;
3292 schedule_delayed_work(
3293 &card->buffer_reclaim_work,
3294 QETH_RECLAIM_WORK_TIME);
3300 * according to old code it should be avoided to requeue all
3301 * 128 buffers in order to benefit from PCI avoidance.
3302 * this function keeps at least one buffer (the buffer at
3303 * 'index') un-requeued -> this buffer is the first buffer that
3304 * will be requeued the next time
3306 if (card->options.performance_stats) {
3307 card->perf_stats.inbound_do_qdio_cnt++;
3308 card->perf_stats.inbound_do_qdio_start_time =
3311 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
3312 queue->next_buf_to_init, count);
3313 if (card->options.performance_stats)
3314 card->perf_stats.inbound_do_qdio_time +=
3316 card->perf_stats.inbound_do_qdio_start_time;
3318 QETH_CARD_TEXT(card, 2, "qinberr");
3320 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
3321 QDIO_MAX_BUFFERS_PER_Q;
3324 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
3326 static int qeth_handle_send_error(struct qeth_card *card,
3327 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
3329 int sbalf15 = buffer->buffer->element[15].sflags;
3331 QETH_CARD_TEXT(card, 6, "hdsnderr");
3332 if (card->info.type == QETH_CARD_TYPE_IQD) {
3339 qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
3342 return QETH_SEND_ERROR_NONE;
3344 if ((sbalf15 >= 15) && (sbalf15 <= 31))
3345 return QETH_SEND_ERROR_RETRY;
3347 QETH_CARD_TEXT(card, 1, "lnkfail");
3348 QETH_CARD_TEXT_(card, 1, "%04x %02x",
3349 (u16)qdio_err, (u8)sbalf15);
3350 return QETH_SEND_ERROR_LINK_FAILURE;
3354 * Switched to packing state if the number of used buffers on a queue
3355 * reaches a certain limit.
3357 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3359 if (!queue->do_pack) {
3360 if (atomic_read(&queue->used_buffers)
3361 >= QETH_HIGH_WATERMARK_PACK){
3362 /* switch non-PACKING -> PACKING */
3363 QETH_CARD_TEXT(queue->card, 6, "np->pack");
3364 if (queue->card->options.performance_stats)
3365 queue->card->perf_stats.sc_dp_p++;
3372 * Switches from packing to non-packing mode. If there is a packing
3373 * buffer on the queue this buffer will be prepared to be flushed.
3374 * In that case 1 is returned to inform the caller. If no buffer
3375 * has to be flushed, zero is returned.
3377 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3379 struct qeth_qdio_out_buffer *buffer;
3380 int flush_count = 0;
3382 if (queue->do_pack) {
3383 if (atomic_read(&queue->used_buffers)
3384 <= QETH_LOW_WATERMARK_PACK) {
3385 /* switch PACKING -> non-PACKING */
3386 QETH_CARD_TEXT(queue->card, 6, "pack->np");
3387 if (queue->card->options.performance_stats)
3388 queue->card->perf_stats.sc_p_dp++;
3390 /* flush packing buffers */
3391 buffer = queue->bufs[queue->next_buf_to_fill];
3392 if ((atomic_read(&buffer->state) ==
3393 QETH_QDIO_BUF_EMPTY) &&
3394 (buffer->next_element_to_fill > 0)) {
3395 atomic_set(&buffer->state,
3396 QETH_QDIO_BUF_PRIMED);
3398 queue->next_buf_to_fill =
3399 (queue->next_buf_to_fill + 1) %
3400 QDIO_MAX_BUFFERS_PER_Q;
3409 * Called to flush a packing buffer if no more pci flags are on the queue.
3410 * Checks if there is a packing buffer and prepares it to be flushed.
3411 * In that case returns 1, otherwise zero.
3413 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3415 struct qeth_qdio_out_buffer *buffer;
3417 buffer = queue->bufs[queue->next_buf_to_fill];
3418 if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3419 (buffer->next_element_to_fill > 0)) {
3420 /* it's a packing buffer */
3421 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3422 queue->next_buf_to_fill =
3423 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3429 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
3432 struct qeth_qdio_out_buffer *buf;
3435 unsigned int qdio_flags;
3437 for (i = index; i < index + count; ++i) {
3438 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3439 buf = queue->bufs[bidx];
3440 buf->buffer->element[buf->next_element_to_fill - 1].eflags |=
3441 SBAL_EFLAGS_LAST_ENTRY;
3443 if (queue->bufstates)
3444 queue->bufstates[bidx].user = buf;
3446 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
3449 if (!queue->do_pack) {
3450 if ((atomic_read(&queue->used_buffers) >=
3451 (QETH_HIGH_WATERMARK_PACK -
3452 QETH_WATERMARK_PACK_FUZZ)) &&
3453 !atomic_read(&queue->set_pci_flags_count)) {
3454 /* it's likely that we'll go to packing
3456 atomic_inc(&queue->set_pci_flags_count);
3457 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3460 if (!atomic_read(&queue->set_pci_flags_count)) {
3462 * there's no outstanding PCI any more, so we
3463 * have to request a PCI to be sure the the PCI
3464 * will wake at some time in the future then we
3465 * can flush packed buffers that might still be
3466 * hanging around, which can happen if no
3467 * further send was requested by the stack
3469 atomic_inc(&queue->set_pci_flags_count);
3470 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3475 netif_trans_update(queue->card->dev);
3476 if (queue->card->options.performance_stats) {
3477 queue->card->perf_stats.outbound_do_qdio_cnt++;
3478 queue->card->perf_stats.outbound_do_qdio_start_time =
3481 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3482 if (atomic_read(&queue->set_pci_flags_count))
3483 qdio_flags |= QDIO_FLAG_PCI_OUT;
3484 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3485 queue->queue_no, index, count);
3486 if (queue->card->options.performance_stats)
3487 queue->card->perf_stats.outbound_do_qdio_time +=
3489 queue->card->perf_stats.outbound_do_qdio_start_time;
3490 atomic_add(count, &queue->used_buffers);
3492 queue->card->stats.tx_errors += count;
3493 /* ignore temporary SIGA errors without busy condition */
3496 QETH_CARD_TEXT(queue->card, 2, "flushbuf");
3497 QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
3498 QETH_CARD_TEXT_(queue->card, 2, " idx%d", index);
3499 QETH_CARD_TEXT_(queue->card, 2, " c%d", count);
3500 QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
3502 /* this must not happen under normal circumstances. if it
3503 * happens something is really wrong -> recover */
3504 qeth_schedule_recovery(queue->card);
3507 if (queue->card->options.performance_stats)
3508 queue->card->perf_stats.bufs_sent += count;
3511 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3515 int q_was_packing = 0;
3518 * check if weed have to switch to non-packing mode or if
3519 * we have to get a pci flag out on the queue
3521 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3522 !atomic_read(&queue->set_pci_flags_count)) {
3523 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3524 QETH_OUT_Q_UNLOCKED) {
3526 * If we get in here, there was no action in
3527 * do_send_packet. So, we check if there is a
3528 * packing buffer to be flushed here.
3530 netif_stop_queue(queue->card->dev);
3531 index = queue->next_buf_to_fill;
3532 q_was_packing = queue->do_pack;
3533 /* queue->do_pack may change */
3535 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3537 !atomic_read(&queue->set_pci_flags_count))
3539 qeth_flush_buffers_on_no_pci(queue);
3540 if (queue->card->options.performance_stats &&
3542 queue->card->perf_stats.bufs_sent_pack +=
3545 qeth_flush_buffers(queue, index, flush_cnt);
3546 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3551 void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
3552 unsigned long card_ptr)
3554 struct qeth_card *card = (struct qeth_card *)card_ptr;
3556 if (card->dev && (card->dev->flags & IFF_UP))
3557 napi_schedule(&card->napi);
3559 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
3561 int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
3565 if (card->options.cq == QETH_CQ_NOTAVAILABLE) {
3569 if (card->options.cq == cq) {
3574 if (card->state != CARD_STATE_DOWN &&
3575 card->state != CARD_STATE_RECOVER) {
3580 qeth_free_qdio_buffers(card);
3581 card->options.cq = cq;
3588 EXPORT_SYMBOL_GPL(qeth_configure_cq);
3591 static void qeth_qdio_cq_handler(struct qeth_card *card,
3592 unsigned int qdio_err,
3593 unsigned int queue, int first_element, int count) {
3594 struct qeth_qdio_q *cq = card->qdio.c_q;
3598 if (!qeth_is_cq(card, queue))
3601 QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element);
3602 QETH_CARD_TEXT_(card, 5, "qcqhc%d", count);
3603 QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err);
3606 netif_stop_queue(card->dev);
3607 qeth_schedule_recovery(card);
3611 if (card->options.performance_stats) {
3612 card->perf_stats.cq_cnt++;
3613 card->perf_stats.cq_start_time = qeth_get_micros();
3616 for (i = first_element; i < first_element + count; ++i) {
3617 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3618 struct qdio_buffer *buffer = cq->qdio_bufs[bidx];
3622 while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) &&
3623 buffer->element[e].addr) {
3624 unsigned long phys_aob_addr;
3626 phys_aob_addr = (unsigned long) buffer->element[e].addr;
3627 qeth_qdio_handle_aob(card, phys_aob_addr);
3628 buffer->element[e].addr = NULL;
3629 buffer->element[e].eflags = 0;
3630 buffer->element[e].sflags = 0;
3631 buffer->element[e].length = 0;
3636 buffer->element[15].eflags = 0;
3637 buffer->element[15].sflags = 0;
3639 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue,
3640 card->qdio.c_q->next_buf_to_init,
3643 dev_warn(&card->gdev->dev,
3644 "QDIO reported an error, rc=%i\n", rc);
3645 QETH_CARD_TEXT(card, 2, "qcqherr");
3647 card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init
3648 + count) % QDIO_MAX_BUFFERS_PER_Q;
3650 netif_wake_queue(card->dev);
3652 if (card->options.performance_stats) {
3653 int delta_t = qeth_get_micros();
3654 delta_t -= card->perf_stats.cq_start_time;
3655 card->perf_stats.cq_time += delta_t;
3661 void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
3662 unsigned int queue, int first_elem, int count,
3663 unsigned long card_ptr)
3665 struct qeth_card *card = (struct qeth_card *)card_ptr;
3667 QETH_CARD_TEXT_(card, 2, "qihq%d", queue);
3668 QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err);
3670 if (qeth_is_cq(card, queue))
3671 qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count);
3673 qeth_schedule_recovery(card);
3677 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
3679 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
3680 unsigned int qdio_error, int __queue, int first_element,
3681 int count, unsigned long card_ptr)
3683 struct qeth_card *card = (struct qeth_card *) card_ptr;
3684 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3685 struct qeth_qdio_out_buffer *buffer;
3688 QETH_CARD_TEXT(card, 6, "qdouhdl");
3689 if (qdio_error & QDIO_ERROR_FATAL) {
3690 QETH_CARD_TEXT(card, 2, "achkcond");
3691 netif_stop_queue(card->dev);
3692 qeth_schedule_recovery(card);
3695 if (card->options.performance_stats) {
3696 card->perf_stats.outbound_handler_cnt++;
3697 card->perf_stats.outbound_handler_start_time =
3700 for (i = first_element; i < (first_element + count); ++i) {
3701 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3702 buffer = queue->bufs[bidx];
3703 qeth_handle_send_error(card, buffer, qdio_error);
3705 if (queue->bufstates &&
3706 (queue->bufstates[bidx].flags &
3707 QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) {
3708 WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
3710 if (atomic_cmpxchg(&buffer->state,
3711 QETH_QDIO_BUF_PRIMED,
3712 QETH_QDIO_BUF_PENDING) ==
3713 QETH_QDIO_BUF_PRIMED) {
3714 qeth_notify_skbs(queue, buffer,
3717 buffer->aob = queue->bufstates[bidx].aob;
3718 QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx);
3719 QETH_CARD_TEXT(queue->card, 5, "aob");
3720 QETH_CARD_TEXT_(queue->card, 5, "%lx",
3721 virt_to_phys(buffer->aob));
3722 if (qeth_init_qdio_out_buf(queue, bidx)) {
3723 QETH_CARD_TEXT(card, 2, "outofbuf");
3724 qeth_schedule_recovery(card);
3727 if (card->options.cq == QETH_CQ_ENABLED) {
3728 enum iucv_tx_notify n;
3730 n = qeth_compute_cq_notification(
3731 buffer->buffer->element[15].sflags, 0);
3732 qeth_notify_skbs(queue, buffer, n);
3735 qeth_clear_output_buffer(queue, buffer,
3736 QETH_QDIO_BUF_EMPTY);
3738 qeth_cleanup_handled_pending(queue, bidx, 0);
3740 atomic_sub(count, &queue->used_buffers);
3741 /* check if we need to do something on this outbound queue */
3742 if (card->info.type != QETH_CARD_TYPE_IQD)
3743 qeth_check_outbound_queue(queue);
3745 netif_wake_queue(queue->card->dev);
3746 if (card->options.performance_stats)
3747 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3748 card->perf_stats.outbound_handler_start_time;
3750 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
3752 /* We cannot use outbound queue 3 for unicast packets on HiperSockets */
3753 static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num)
3755 if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3))
3761 * Note: Function assumes that we have 4 outbound queues.
3763 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3764 int ipv, int cast_type)
3769 if (cast_type && card->info.is_multicast_different)
3770 return card->info.is_multicast_different &
3771 (card->qdio.no_out_queues - 1);
3773 switch (card->qdio.do_prio_queueing) {
3774 case QETH_PRIO_Q_ING_TOS:
3775 case QETH_PRIO_Q_ING_PREC:
3778 tos = ipv4_get_dsfield(ip_hdr(skb));
3781 tos = ipv6_get_dsfield(ipv6_hdr(skb));
3784 return card->qdio.default_out_queue;
3786 if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC)
3787 return qeth_cut_iqd_prio(card, ~tos >> 6 & 3);
3788 if (tos & IPTOS_MINCOST)
3789 return qeth_cut_iqd_prio(card, 3);
3790 if (tos & IPTOS_RELIABILITY)
3792 if (tos & IPTOS_THROUGHPUT)
3794 if (tos & IPTOS_LOWDELAY)
3797 case QETH_PRIO_Q_ING_SKB:
3798 if (skb->priority > 5)
3800 return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3);
3801 case QETH_PRIO_Q_ING_VLAN:
3802 tci = &((struct ethhdr *)skb->data)->h_proto;
3803 if (*tci == ETH_P_8021Q)
3804 return qeth_cut_iqd_prio(card, ~*(tci + 1) >>
3805 (VLAN_PRIO_SHIFT + 1) & 3);
3810 return card->qdio.default_out_queue;
3812 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
3815 * qeth_get_elements_for_frags() - find number of SBALEs for skb frags.
3818 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3819 * fragmented part of the SKB. Returns zero for linear SKB.
3821 int qeth_get_elements_for_frags(struct sk_buff *skb)
3823 int cnt, elements = 0;
3825 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3826 struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt];
3828 elements += qeth_get_elements_for_range(
3829 (addr_t)skb_frag_address(frag),
3830 (addr_t)skb_frag_address(frag) + skb_frag_size(frag));
3834 EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags);
3837 * qeth_get_elements_no() - find number of SBALEs for skb data, inc. frags.
3838 * @card: qeth card structure, to check max. elems.
3840 * @extra_elems: extra elems needed, to check against max.
3842 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3843 * skb data, including linear part and fragments. Checks if the result plus
3844 * extra_elems fits under the limit for the card. Returns 0 if it does not.
3845 * Note: extra_elems is not included in the returned result.
3847 int qeth_get_elements_no(struct qeth_card *card,
3848 struct sk_buff *skb, int extra_elems)
3850 int elements = qeth_get_elements_for_range(
3852 (addr_t)skb->data + skb_headlen(skb)) +
3853 qeth_get_elements_for_frags(skb);
3855 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3856 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3857 "(Number=%d / Length=%d). Discarded.\n",
3858 elements + extra_elems, skb->len);
3863 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3865 int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len)
3867 int hroom, inpage, rest;
3869 if (((unsigned long)skb->data & PAGE_MASK) !=
3870 (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
3871 hroom = skb_headroom(skb);
3872 inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
3873 rest = len - inpage;
3876 memmove(skb->data - rest, skb->data, skb_headlen(skb));
3879 *hdr = (struct qeth_hdr *)skb->data;
3880 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
3884 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
3886 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3887 struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3890 int length = skb_headlen(skb);
3895 struct skb_frag_struct *frag;
3897 element = *next_element_to_fill;
3899 first_lap = (is_tso == 0 ? 1 : 0);
3902 data = skb->data + offset;
3907 while (length > 0) {
3908 /* length_here is the remaining amount of data in this page */
3909 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3910 if (length < length_here)
3911 length_here = length;
3913 buffer->element[element].addr = data;
3914 buffer->element[element].length = length_here;
3915 length -= length_here;
3918 if (skb_shinfo(skb)->nr_frags)
3919 buffer->element[element].eflags =
3920 SBAL_EFLAGS_FIRST_FRAG;
3922 buffer->element[element].eflags = 0;
3924 buffer->element[element].eflags =
3925 SBAL_EFLAGS_MIDDLE_FRAG;
3928 buffer->element[element].eflags =
3929 SBAL_EFLAGS_FIRST_FRAG;
3931 buffer->element[element].eflags =
3932 SBAL_EFLAGS_MIDDLE_FRAG;
3934 data += length_here;
3939 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3940 frag = &skb_shinfo(skb)->frags[cnt];
3941 data = (char *)page_to_phys(skb_frag_page(frag)) +
3943 length = frag->size;
3944 while (length > 0) {
3945 length_here = PAGE_SIZE -
3946 ((unsigned long) data % PAGE_SIZE);
3947 if (length < length_here)
3948 length_here = length;
3950 buffer->element[element].addr = data;
3951 buffer->element[element].length = length_here;
3952 buffer->element[element].eflags =
3953 SBAL_EFLAGS_MIDDLE_FRAG;
3954 length -= length_here;
3955 data += length_here;
3960 if (buffer->element[element - 1].eflags)
3961 buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG;
3962 *next_element_to_fill = element;
3965 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3966 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3967 struct qeth_hdr *hdr, int offset, int hd_len)
3969 struct qdio_buffer *buffer;
3970 int flush_cnt = 0, hdr_len, large_send = 0;
3972 buffer = buf->buffer;
3973 atomic_inc(&skb->users);
3974 skb_queue_tail(&buf->skb_list, skb);
3976 /*check first on TSO ....*/
3977 if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3978 int element = buf->next_element_to_fill;
3980 hdr_len = sizeof(struct qeth_hdr_tso) +
3981 ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3982 /*fill first buffer entry only with header information */
3983 buffer->element[element].addr = skb->data;
3984 buffer->element[element].length = hdr_len;
3985 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
3986 buf->next_element_to_fill++;
3987 skb->data += hdr_len;
3988 skb->len -= hdr_len;
3993 int element = buf->next_element_to_fill;
3994 buffer->element[element].addr = hdr;
3995 buffer->element[element].length = sizeof(struct qeth_hdr) +
3997 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
3998 buf->is_header[element] = 1;
3999 buf->next_element_to_fill++;
4002 __qeth_fill_buffer(skb, buffer, large_send,
4003 (int *)&buf->next_element_to_fill, offset);
4005 if (!queue->do_pack) {
4006 QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
4007 /* set state to PRIMED -> will be flushed */
4008 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4011 QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
4012 if (queue->card->options.performance_stats)
4013 queue->card->perf_stats.skbs_sent_pack++;
4014 if (buf->next_element_to_fill >=
4015 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4017 * packed buffer if full -> set state PRIMED
4018 * -> will be flushed
4020 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4027 int qeth_do_send_packet_fast(struct qeth_card *card,
4028 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
4029 struct qeth_hdr *hdr, int elements_needed,
4030 int offset, int hd_len)
4032 struct qeth_qdio_out_buffer *buffer;
4035 /* spin until we get the queue ... */
4036 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4037 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4038 /* ... now we've got the queue */
4039 index = queue->next_buf_to_fill;
4040 buffer = queue->bufs[queue->next_buf_to_fill];
4042 * check if buffer is empty to make sure that we do not 'overtake'
4043 * ourselves and try to fill a buffer that is already primed
4045 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4047 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4048 QDIO_MAX_BUFFERS_PER_Q;
4049 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4050 qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
4051 qeth_flush_buffers(queue, index, 1);
4054 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4057 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
4059 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4060 struct sk_buff *skb, struct qeth_hdr *hdr,
4061 int elements_needed)
4063 struct qeth_qdio_out_buffer *buffer;
4065 int flush_count = 0;
4070 /* spin until we get the queue ... */
4071 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4072 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4073 start_index = queue->next_buf_to_fill;
4074 buffer = queue->bufs[queue->next_buf_to_fill];
4076 * check if buffer is empty to make sure that we do not 'overtake'
4077 * ourselves and try to fill a buffer that is already primed
4079 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4080 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4083 /* check if we need to switch packing state of this queue */
4084 qeth_switch_to_packing_if_needed(queue);
4085 if (queue->do_pack) {
4087 /* does packet fit in current buffer? */
4088 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
4089 buffer->next_element_to_fill) < elements_needed) {
4090 /* ... no -> set state PRIMED */
4091 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
4093 queue->next_buf_to_fill =
4094 (queue->next_buf_to_fill + 1) %
4095 QDIO_MAX_BUFFERS_PER_Q;
4096 buffer = queue->bufs[queue->next_buf_to_fill];
4097 /* we did a step forward, so check buffer state
4099 if (atomic_read(&buffer->state) !=
4100 QETH_QDIO_BUF_EMPTY) {
4101 qeth_flush_buffers(queue, start_index,
4103 atomic_set(&queue->state,
4104 QETH_OUT_Q_UNLOCKED);
4109 tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
4110 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4111 QDIO_MAX_BUFFERS_PER_Q;
4114 qeth_flush_buffers(queue, start_index, flush_count);
4115 else if (!atomic_read(&queue->set_pci_flags_count))
4116 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4118 * queue->state will go from LOCKED -> UNLOCKED or from
4119 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4120 * (switch packing state or flush buffer to get another pci flag out).
4121 * In that case we will enter this loop
4123 while (atomic_dec_return(&queue->state)) {
4125 start_index = queue->next_buf_to_fill;
4126 /* check if we can go back to non-packing state */
4127 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4129 * check if we need to flush a packing buffer to get a pci
4130 * flag out on the queue
4132 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4133 flush_count += qeth_flush_buffers_on_no_pci(queue);
4135 qeth_flush_buffers(queue, start_index, flush_count);
4137 /* at this point the queue is UNLOCKED again */
4138 if (queue->card->options.performance_stats && do_pack)
4139 queue->card->perf_stats.bufs_sent_pack += flush_count;
4143 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
4145 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
4146 struct qeth_reply *reply, unsigned long data)
4148 struct qeth_ipa_cmd *cmd;
4149 struct qeth_ipacmd_setadpparms *setparms;
4151 QETH_CARD_TEXT(card, 4, "prmadpcb");
4153 cmd = (struct qeth_ipa_cmd *) data;
4154 setparms = &(cmd->data.setadapterparms);
4156 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
4157 if (cmd->hdr.return_code) {
4158 QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code);
4159 setparms->data.mode = SET_PROMISC_MODE_OFF;
4161 card->info.promisc_mode = setparms->data.mode;
4165 void qeth_setadp_promisc_mode(struct qeth_card *card)
4167 enum qeth_ipa_promisc_modes mode;
4168 struct net_device *dev = card->dev;
4169 struct qeth_cmd_buffer *iob;
4170 struct qeth_ipa_cmd *cmd;
4172 QETH_CARD_TEXT(card, 4, "setprom");
4174 if (((dev->flags & IFF_PROMISC) &&
4175 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
4176 (!(dev->flags & IFF_PROMISC) &&
4177 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
4179 mode = SET_PROMISC_MODE_OFF;
4180 if (dev->flags & IFF_PROMISC)
4181 mode = SET_PROMISC_MODE_ON;
4182 QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
4184 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
4185 sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8);
4188 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
4189 cmd->data.setadapterparms.data.mode = mode;
4190 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
4192 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
4194 int qeth_change_mtu(struct net_device *dev, int new_mtu)
4196 struct qeth_card *card;
4199 card = dev->ml_priv;
4201 QETH_CARD_TEXT(card, 4, "chgmtu");
4202 sprintf(dbf_text, "%8x", new_mtu);
4203 QETH_CARD_TEXT(card, 4, dbf_text);
4207 if (new_mtu > 65535)
4209 if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
4210 (!qeth_mtu_is_valid(card, new_mtu)))
4215 EXPORT_SYMBOL_GPL(qeth_change_mtu);
4217 struct net_device_stats *qeth_get_stats(struct net_device *dev)
4219 struct qeth_card *card;
4221 card = dev->ml_priv;
4223 QETH_CARD_TEXT(card, 5, "getstat");
4225 return &card->stats;
4227 EXPORT_SYMBOL_GPL(qeth_get_stats);
4229 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
4230 struct qeth_reply *reply, unsigned long data)
4232 struct qeth_ipa_cmd *cmd;
4234 QETH_CARD_TEXT(card, 4, "chgmaccb");
4236 cmd = (struct qeth_ipa_cmd *) data;
4237 if (!card->options.layer2 ||
4238 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
4239 memcpy(card->dev->dev_addr,
4240 &cmd->data.setadapterparms.data.change_addr.addr,
4242 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
4244 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4248 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
4251 struct qeth_cmd_buffer *iob;
4252 struct qeth_ipa_cmd *cmd;
4254 QETH_CARD_TEXT(card, 4, "chgmac");
4256 iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
4257 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4258 sizeof(struct qeth_change_addr));
4261 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4262 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
4263 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
4264 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
4265 card->dev->dev_addr, OSA_ADDR_LEN);
4266 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
4270 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
4272 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
4273 struct qeth_reply *reply, unsigned long data)
4275 struct qeth_ipa_cmd *cmd;
4276 struct qeth_set_access_ctrl *access_ctrl_req;
4277 int fallback = *(int *)reply->param;
4279 QETH_CARD_TEXT(card, 4, "setaccb");
4281 cmd = (struct qeth_ipa_cmd *) data;
4282 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4283 QETH_DBF_TEXT_(SETUP, 2, "setaccb");
4284 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4285 QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
4286 cmd->data.setadapterparms.hdr.return_code);
4287 if (cmd->data.setadapterparms.hdr.return_code !=
4288 SET_ACCESS_CTRL_RC_SUCCESS)
4289 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4290 card->gdev->dev.kobj.name,
4291 access_ctrl_req->subcmd_code,
4292 cmd->data.setadapterparms.hdr.return_code);
4293 switch (cmd->data.setadapterparms.hdr.return_code) {
4294 case SET_ACCESS_CTRL_RC_SUCCESS:
4295 if (card->options.isolation == ISOLATION_MODE_NONE) {
4296 dev_info(&card->gdev->dev,
4297 "QDIO data connection isolation is deactivated\n");
4299 dev_info(&card->gdev->dev,
4300 "QDIO data connection isolation is activated\n");
4303 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
4304 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
4305 "deactivated\n", dev_name(&card->gdev->dev));
4307 card->options.isolation = card->options.prev_isolation;
4309 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
4310 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
4311 " activated\n", dev_name(&card->gdev->dev));
4313 card->options.isolation = card->options.prev_isolation;
4315 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
4316 dev_err(&card->gdev->dev, "Adapter does not "
4317 "support QDIO data connection isolation\n");
4319 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
4320 dev_err(&card->gdev->dev,
4321 "Adapter is dedicated. "
4322 "QDIO data connection isolation not supported\n");
4324 card->options.isolation = card->options.prev_isolation;
4326 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
4327 dev_err(&card->gdev->dev,
4328 "TSO does not permit QDIO data connection isolation\n");
4330 card->options.isolation = card->options.prev_isolation;
4332 case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED:
4333 dev_err(&card->gdev->dev, "The adjacent switch port does not "
4334 "support reflective relay mode\n");
4336 card->options.isolation = card->options.prev_isolation;
4338 case SET_ACCESS_CTRL_RC_REFLREL_FAILED:
4339 dev_err(&card->gdev->dev, "The reflective relay mode cannot be "
4340 "enabled at the adjacent switch port");
4342 card->options.isolation = card->options.prev_isolation;
4344 case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED:
4345 dev_warn(&card->gdev->dev, "Turning off reflective relay mode "
4346 "at the adjacent switch failed\n");
4349 /* this should never happen */
4351 card->options.isolation = card->options.prev_isolation;
4354 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4358 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
4359 enum qeth_ipa_isolation_modes isolation, int fallback)
4362 struct qeth_cmd_buffer *iob;
4363 struct qeth_ipa_cmd *cmd;
4364 struct qeth_set_access_ctrl *access_ctrl_req;
4366 QETH_CARD_TEXT(card, 4, "setacctl");
4368 QETH_DBF_TEXT_(SETUP, 2, "setacctl");
4369 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4371 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
4372 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4373 sizeof(struct qeth_set_access_ctrl));
4376 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4377 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4378 access_ctrl_req->subcmd_code = isolation;
4380 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
4382 QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
4386 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback)
4390 QETH_CARD_TEXT(card, 4, "setactlo");
4392 if ((card->info.type == QETH_CARD_TYPE_OSD ||
4393 card->info.type == QETH_CARD_TYPE_OSX) &&
4394 qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
4395 rc = qeth_setadpparms_set_access_ctrl(card,
4396 card->options.isolation, fallback);
4399 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4400 card->gdev->dev.kobj.name,
4404 } else if (card->options.isolation != ISOLATION_MODE_NONE) {
4405 card->options.isolation = ISOLATION_MODE_NONE;
4407 dev_err(&card->gdev->dev, "Adapter does not "
4408 "support QDIO data connection isolation\n");
4413 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
4415 void qeth_tx_timeout(struct net_device *dev)
4417 struct qeth_card *card;
4419 card = dev->ml_priv;
4420 QETH_CARD_TEXT(card, 4, "txtimeo");
4421 card->stats.tx_errors++;
4422 qeth_schedule_recovery(card);
4424 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
4426 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4428 struct qeth_card *card = dev->ml_priv;
4432 case MII_BMCR: /* Basic mode control register */
4434 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
4435 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4436 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4437 rc |= BMCR_SPEED100;
4439 case MII_BMSR: /* Basic mode status register */
4440 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4441 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4444 case MII_PHYSID1: /* PHYS ID 1 */
4445 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4447 rc = (rc >> 5) & 0xFFFF;
4449 case MII_PHYSID2: /* PHYS ID 2 */
4450 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4452 case MII_ADVERTISE: /* Advertisement control reg */
4455 case MII_LPA: /* Link partner ability reg */
4456 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4457 LPA_100BASE4 | LPA_LPACK;
4459 case MII_EXPANSION: /* Expansion register */
4461 case MII_DCOUNTER: /* disconnect counter */
4463 case MII_FCSCOUNTER: /* false carrier counter */
4465 case MII_NWAYTEST: /* N-way auto-neg test register */
4467 case MII_RERRCOUNTER: /* rx error counter */
4468 rc = card->stats.rx_errors;
4470 case MII_SREVISION: /* silicon revision */
4472 case MII_RESV1: /* reserved 1 */
4474 case MII_LBRERROR: /* loopback, rx, bypass error */
4476 case MII_PHYADDR: /* physical address */
4478 case MII_RESV2: /* reserved 2 */
4480 case MII_TPISTATUS: /* TPI status for 10mbps */
4482 case MII_NCONFIG: /* network interface config */
4489 EXPORT_SYMBOL_GPL(qeth_mdio_read);
4491 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
4492 struct qeth_cmd_buffer *iob, int len,
4493 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
4499 QETH_CARD_TEXT(card, 4, "sendsnmp");
4501 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4502 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4503 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4504 /* adjust PDU length fields in IPA_PDU_HEADER */
4505 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4507 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4508 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4509 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4510 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4511 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4512 reply_cb, reply_param);
4515 static int qeth_snmp_command_cb(struct qeth_card *card,
4516 struct qeth_reply *reply, unsigned long sdata)
4518 struct qeth_ipa_cmd *cmd;
4519 struct qeth_arp_query_info *qinfo;
4520 struct qeth_snmp_cmd *snmp;
4521 unsigned char *data;
4524 QETH_CARD_TEXT(card, 3, "snpcmdcb");
4526 cmd = (struct qeth_ipa_cmd *) sdata;
4527 data = (unsigned char *)((char *)cmd - reply->offset);
4528 qinfo = (struct qeth_arp_query_info *) reply->param;
4529 snmp = &cmd->data.setadapterparms.data.snmp;
4531 if (cmd->hdr.return_code) {
4532 QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code);
4535 if (cmd->data.setadapterparms.hdr.return_code) {
4536 cmd->hdr.return_code =
4537 cmd->data.setadapterparms.hdr.return_code;
4538 QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code);
4541 data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
4542 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4543 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4545 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
4547 /* check if there is enough room in userspace */
4548 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4549 QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
4550 cmd->hdr.return_code = IPA_RC_ENOMEM;
4553 QETH_CARD_TEXT_(card, 4, "snore%i",
4554 cmd->data.setadapterparms.hdr.used_total);
4555 QETH_CARD_TEXT_(card, 4, "sseqn%i",
4556 cmd->data.setadapterparms.hdr.seq_no);
4557 /*copy entries to user buffer*/
4558 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4559 memcpy(qinfo->udata + qinfo->udata_offset,
4561 data_len + offsetof(struct qeth_snmp_cmd, data));
4562 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4564 memcpy(qinfo->udata + qinfo->udata_offset,
4565 (char *)&snmp->request, data_len);
4567 qinfo->udata_offset += data_len;
4568 /* check if all replies received ... */
4569 QETH_CARD_TEXT_(card, 4, "srtot%i",
4570 cmd->data.setadapterparms.hdr.used_total);
4571 QETH_CARD_TEXT_(card, 4, "srseq%i",
4572 cmd->data.setadapterparms.hdr.seq_no);
4573 if (cmd->data.setadapterparms.hdr.seq_no <
4574 cmd->data.setadapterparms.hdr.used_total)
4579 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
4581 struct qeth_cmd_buffer *iob;
4582 struct qeth_ipa_cmd *cmd;
4583 struct qeth_snmp_ureq *ureq;
4584 unsigned int req_len;
4585 struct qeth_arp_query_info qinfo = {0, };
4588 QETH_CARD_TEXT(card, 3, "snmpcmd");
4590 if (card->info.guestlan)
4593 if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
4594 (!card->options.layer2)) {
4597 /* skip 4 bytes (data_len struct member) to get req_len */
4598 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4600 if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE -
4601 sizeof(struct qeth_ipacmd_hdr) -
4602 sizeof(struct qeth_ipacmd_setadpparms_hdr)))
4604 ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
4606 QETH_CARD_TEXT(card, 2, "snmpnome");
4607 return PTR_ERR(ureq);
4609 qinfo.udata_len = ureq->hdr.data_len;
4610 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
4615 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4617 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4618 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4623 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4624 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4625 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4626 qeth_snmp_command_cb, (void *)&qinfo);
4628 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4629 QETH_CARD_IFNAME(card), rc);
4631 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4639 EXPORT_SYMBOL_GPL(qeth_snmp_command);
4641 static int qeth_setadpparms_query_oat_cb(struct qeth_card *card,
4642 struct qeth_reply *reply, unsigned long data)
4644 struct qeth_ipa_cmd *cmd;
4645 struct qeth_qoat_priv *priv;
4649 QETH_CARD_TEXT(card, 3, "qoatcb");
4651 cmd = (struct qeth_ipa_cmd *)data;
4652 priv = (struct qeth_qoat_priv *)reply->param;
4653 resdatalen = cmd->data.setadapterparms.hdr.cmdlength;
4654 resdata = (char *)data + 28;
4656 if (resdatalen > (priv->buffer_len - priv->response_len)) {
4657 cmd->hdr.return_code = IPA_RC_FFFF;
4661 memcpy((priv->buffer + priv->response_len), resdata,
4663 priv->response_len += resdatalen;
4665 if (cmd->data.setadapterparms.hdr.seq_no <
4666 cmd->data.setadapterparms.hdr.used_total)
4671 int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
4674 struct qeth_cmd_buffer *iob;
4675 struct qeth_ipa_cmd *cmd;
4676 struct qeth_query_oat *oat_req;
4677 struct qeth_query_oat_data oat_data;
4678 struct qeth_qoat_priv priv;
4681 QETH_CARD_TEXT(card, 3, "qoatcmd");
4683 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) {
4688 if (copy_from_user(&oat_data, udata,
4689 sizeof(struct qeth_query_oat_data))) {
4694 priv.buffer_len = oat_data.buffer_len;
4695 priv.response_len = 0;
4696 priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL);
4702 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT,
4703 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4704 sizeof(struct qeth_query_oat));
4709 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4710 oat_req = &cmd->data.setadapterparms.data.query_oat;
4711 oat_req->subcmd_code = oat_data.command;
4713 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb,
4716 if (is_compat_task())
4717 tmp = compat_ptr(oat_data.ptr);
4719 tmp = (void __user *)(unsigned long)oat_data.ptr;
4721 if (copy_to_user(tmp, priv.buffer,
4722 priv.response_len)) {
4727 oat_data.response_len = priv.response_len;
4729 if (copy_to_user(udata, &oat_data,
4730 sizeof(struct qeth_query_oat_data)))
4733 if (rc == IPA_RC_FFFF)
4741 EXPORT_SYMBOL_GPL(qeth_query_oat_command);
4743 static int qeth_query_card_info_cb(struct qeth_card *card,
4744 struct qeth_reply *reply, unsigned long data)
4746 struct qeth_ipa_cmd *cmd;
4747 struct qeth_query_card_info *card_info;
4748 struct carrier_info *carrier_info;
4750 QETH_CARD_TEXT(card, 2, "qcrdincb");
4751 carrier_info = (struct carrier_info *)reply->param;
4752 cmd = (struct qeth_ipa_cmd *)data;
4753 card_info = &cmd->data.setadapterparms.data.card_info;
4754 if (cmd->data.setadapterparms.hdr.return_code == 0) {
4755 carrier_info->card_type = card_info->card_type;
4756 carrier_info->port_mode = card_info->port_mode;
4757 carrier_info->port_speed = card_info->port_speed;
4760 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4764 static int qeth_query_card_info(struct qeth_card *card,
4765 struct carrier_info *carrier_info)
4767 struct qeth_cmd_buffer *iob;
4769 QETH_CARD_TEXT(card, 2, "qcrdinfo");
4770 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO))
4772 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO,
4773 sizeof(struct qeth_ipacmd_setadpparms_hdr));
4776 return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb,
4777 (void *)carrier_info);
4780 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
4782 switch (card->info.type) {
4783 case QETH_CARD_TYPE_IQD:
4790 static void qeth_determine_capabilities(struct qeth_card *card)
4795 struct ccw_device *ddev;
4796 int ddev_offline = 0;
4798 QETH_DBF_TEXT(SETUP, 2, "detcapab");
4799 ddev = CARD_DDEV(card);
4800 if (!ddev->online) {
4802 rc = ccw_device_set_online(ddev);
4804 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4809 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
4811 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4812 dev_name(&card->gdev->dev), rc);
4813 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4816 qeth_configure_unitaddr(card, prcd);
4818 qeth_configure_blkt_default(card, prcd);
4821 rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
4823 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4825 QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt);
4826 QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac1);
4827 QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac3);
4828 QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt);
4829 if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) ||
4830 ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) ||
4831 ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) {
4832 dev_info(&card->gdev->dev,
4833 "Completion Queueing supported\n");
4835 card->options.cq = QETH_CQ_NOTAVAILABLE;
4840 if (ddev_offline == 1)
4841 ccw_device_set_offline(ddev);
4846 static inline void qeth_qdio_establish_cq(struct qeth_card *card,
4847 struct qdio_buffer **in_sbal_ptrs,
4848 void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) {
4851 if (card->options.cq == QETH_CQ_ENABLED) {
4852 int offset = QDIO_MAX_BUFFERS_PER_Q *
4853 (card->qdio.no_in_queues - 1);
4854 i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1);
4855 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4856 in_sbal_ptrs[offset + i] = (struct qdio_buffer *)
4857 virt_to_phys(card->qdio.c_q->bufs[i].buffer);
4860 queue_start_poll[card->qdio.no_in_queues - 1] = NULL;
4864 static int qeth_qdio_establish(struct qeth_card *card)
4866 struct qdio_initialize init_data;
4867 char *qib_param_field;
4868 struct qdio_buffer **in_sbal_ptrs;
4869 void (**queue_start_poll) (struct ccw_device *, int, unsigned long);
4870 struct qdio_buffer **out_sbal_ptrs;
4874 QETH_DBF_TEXT(SETUP, 2, "qdioest");
4876 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
4878 if (!qib_param_field) {
4880 goto out_free_nothing;
4883 qeth_create_qib_param_field(card, qib_param_field);
4884 qeth_create_qib_param_field_blkt(card, qib_param_field);
4886 in_sbal_ptrs = kzalloc(card->qdio.no_in_queues *
4887 QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
4889 if (!in_sbal_ptrs) {
4891 goto out_free_qib_param;
4893 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4894 in_sbal_ptrs[i] = (struct qdio_buffer *)
4895 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
4898 queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues,
4900 if (!queue_start_poll) {
4902 goto out_free_in_sbals;
4904 for (i = 0; i < card->qdio.no_in_queues; ++i)
4905 queue_start_poll[i] = card->discipline->start_poll;
4907 qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
4910 kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
4911 sizeof(void *), GFP_KERNEL);
4912 if (!out_sbal_ptrs) {
4914 goto out_free_queue_start_poll;
4916 for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
4917 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
4918 out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
4919 card->qdio.out_qs[i]->bufs[j]->buffer);
4922 memset(&init_data, 0, sizeof(struct qdio_initialize));
4923 init_data.cdev = CARD_DDEV(card);
4924 init_data.q_format = qeth_get_qdio_q_format(card);
4925 init_data.qib_param_field_format = 0;
4926 init_data.qib_param_field = qib_param_field;
4927 init_data.no_input_qs = card->qdio.no_in_queues;
4928 init_data.no_output_qs = card->qdio.no_out_queues;
4929 init_data.input_handler = card->discipline->input_handler;
4930 init_data.output_handler = card->discipline->output_handler;
4931 init_data.queue_start_poll_array = queue_start_poll;
4932 init_data.int_parm = (unsigned long) card;
4933 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
4934 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
4935 init_data.output_sbal_state_array = card->qdio.out_bufstates;
4936 init_data.scan_threshold =
4937 (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32;
4939 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
4940 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
4941 rc = qdio_allocate(&init_data);
4943 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
4946 rc = qdio_establish(&init_data);
4948 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
4949 qdio_free(CARD_DDEV(card));
4953 switch (card->options.cq) {
4954 case QETH_CQ_ENABLED:
4955 dev_info(&card->gdev->dev, "Completion Queue support enabled");
4957 case QETH_CQ_DISABLED:
4958 dev_info(&card->gdev->dev, "Completion Queue support disabled");
4964 kfree(out_sbal_ptrs);
4965 out_free_queue_start_poll:
4966 kfree(queue_start_poll);
4968 kfree(in_sbal_ptrs);
4970 kfree(qib_param_field);
4975 static void qeth_core_free_card(struct qeth_card *card)
4978 QETH_DBF_TEXT(SETUP, 2, "freecrd");
4979 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4980 qeth_clean_channel(&card->read);
4981 qeth_clean_channel(&card->write);
4983 free_netdev(card->dev);
4984 qeth_free_qdio_buffers(card);
4985 unregister_service_level(&card->qeth_service_level);
4989 void qeth_trace_features(struct qeth_card *card)
4991 QETH_CARD_TEXT(card, 2, "features");
4992 QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4));
4993 QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6));
4994 QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp));
4995 QETH_CARD_HEX(card, 2, &card->info.diagass_support,
4996 sizeof(card->info.diagass_support));
4998 EXPORT_SYMBOL_GPL(qeth_trace_features);
5000 static struct ccw_device_id qeth_ids[] = {
5001 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
5002 .driver_info = QETH_CARD_TYPE_OSD},
5003 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
5004 .driver_info = QETH_CARD_TYPE_IQD},
5005 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
5006 .driver_info = QETH_CARD_TYPE_OSN},
5007 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
5008 .driver_info = QETH_CARD_TYPE_OSM},
5009 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
5010 .driver_info = QETH_CARD_TYPE_OSX},
5013 MODULE_DEVICE_TABLE(ccw, qeth_ids);
5015 static struct ccw_driver qeth_ccw_driver = {
5017 .owner = THIS_MODULE,
5021 .probe = ccwgroup_probe_ccwdev,
5022 .remove = ccwgroup_remove_ccwdev,
5025 int qeth_core_hardsetup_card(struct qeth_card *card)
5030 QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
5031 atomic_set(&card->force_alloc_skb, 0);
5032 qeth_update_from_chp_desc(card);
5035 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
5036 dev_name(&card->gdev->dev));
5037 rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
5038 ccw_device_set_offline(CARD_DDEV(card));
5039 ccw_device_set_offline(CARD_WDEV(card));
5040 ccw_device_set_offline(CARD_RDEV(card));
5041 qdio_free(CARD_DDEV(card));
5042 rc = ccw_device_set_online(CARD_RDEV(card));
5045 rc = ccw_device_set_online(CARD_WDEV(card));
5048 rc = ccw_device_set_online(CARD_DDEV(card));
5052 if (rc == -ERESTARTSYS) {
5053 QETH_DBF_TEXT(SETUP, 2, "break1");
5056 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
5062 qeth_determine_capabilities(card);
5063 qeth_init_tokens(card);
5064 qeth_init_func_level(card);
5065 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
5066 if (rc == -ERESTARTSYS) {
5067 QETH_DBF_TEXT(SETUP, 2, "break2");
5070 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
5076 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
5077 if (rc == -ERESTARTSYS) {
5078 QETH_DBF_TEXT(SETUP, 2, "break3");
5081 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
5087 card->read_or_write_problem = 0;
5088 rc = qeth_mpc_initialize(card);
5090 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
5094 card->options.ipa4.supported_funcs = 0;
5095 card->options.ipa6.supported_funcs = 0;
5096 card->options.adp.supported_funcs = 0;
5097 card->options.sbp.supported_funcs = 0;
5098 card->info.diagass_support = 0;
5099 rc = qeth_query_ipassists(card, QETH_PROT_IPV4);
5102 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
5103 rc = qeth_query_setadapterparms(card);
5105 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
5109 if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
5110 rc = qeth_query_setdiagass(card);
5112 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
5118 dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
5119 "an error on the device\n");
5120 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
5121 dev_name(&card->gdev->dev), rc);
5124 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
5126 static inline int qeth_create_skb_frag(struct qeth_qdio_buffer *qethbuffer,
5127 struct qdio_buffer_element *element,
5128 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
5130 struct page *page = virt_to_page(element->addr);
5131 if (*pskb == NULL) {
5132 if (qethbuffer->rx_skb) {
5133 /* only if qeth_card.options.cq == QETH_CQ_ENABLED */
5134 *pskb = qethbuffer->rx_skb;
5135 qethbuffer->rx_skb = NULL;
5137 *pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
5142 skb_reserve(*pskb, ETH_HLEN);
5143 if (data_len <= QETH_RX_PULL_LEN) {
5144 memcpy(skb_put(*pskb, data_len), element->addr + offset,
5148 memcpy(skb_put(*pskb, QETH_RX_PULL_LEN),
5149 element->addr + offset, QETH_RX_PULL_LEN);
5150 skb_fill_page_desc(*pskb, *pfrag, page,
5151 offset + QETH_RX_PULL_LEN,
5152 data_len - QETH_RX_PULL_LEN);
5153 (*pskb)->data_len += data_len - QETH_RX_PULL_LEN;
5154 (*pskb)->len += data_len - QETH_RX_PULL_LEN;
5155 (*pskb)->truesize += data_len - QETH_RX_PULL_LEN;
5160 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
5161 (*pskb)->data_len += data_len;
5162 (*pskb)->len += data_len;
5163 (*pskb)->truesize += data_len;
5171 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
5173 return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
5176 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
5177 struct qeth_qdio_buffer *qethbuffer,
5178 struct qdio_buffer_element **__element, int *__offset,
5179 struct qeth_hdr **hdr)
5181 struct qdio_buffer_element *element = *__element;
5182 struct qdio_buffer *buffer = qethbuffer->buffer;
5183 int offset = *__offset;
5184 struct sk_buff *skb = NULL;
5192 /* qeth_hdr must not cross element boundaries */
5193 if (element->length < offset + sizeof(struct qeth_hdr)) {
5194 if (qeth_is_last_sbale(element))
5198 if (element->length < sizeof(struct qeth_hdr))
5201 *hdr = element->addr + offset;
5203 offset += sizeof(struct qeth_hdr);
5204 switch ((*hdr)->hdr.l2.id) {
5205 case QETH_HEADER_TYPE_LAYER2:
5206 skb_len = (*hdr)->hdr.l2.pkt_length;
5208 case QETH_HEADER_TYPE_LAYER3:
5209 skb_len = (*hdr)->hdr.l3.length;
5210 headroom = ETH_HLEN;
5212 case QETH_HEADER_TYPE_OSN:
5213 skb_len = (*hdr)->hdr.osn.pdu_length;
5214 headroom = sizeof(struct qeth_hdr);
5223 if (((skb_len >= card->options.rx_sg_cb) &&
5224 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
5225 (!atomic_read(&card->force_alloc_skb))) ||
5226 (card->options.cq == QETH_CQ_ENABLED)) {
5229 skb = dev_alloc_skb(skb_len + headroom);
5233 skb_reserve(skb, headroom);
5236 data_ptr = element->addr + offset;
5238 data_len = min(skb_len, (int)(element->length - offset));
5241 if (qeth_create_skb_frag(qethbuffer, element,
5242 &skb, offset, &frag, data_len))
5245 memcpy(skb_put(skb, data_len), data_ptr,
5249 skb_len -= data_len;
5251 if (qeth_is_last_sbale(element)) {
5252 QETH_CARD_TEXT(card, 4, "unexeob");
5253 QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
5254 dev_kfree_skb_any(skb);
5255 card->stats.rx_errors++;
5260 data_ptr = element->addr;
5265 *__element = element;
5267 if (use_rx_sg && card->options.performance_stats) {
5268 card->perf_stats.sg_skbs_rx++;
5269 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
5273 if (net_ratelimit()) {
5274 QETH_CARD_TEXT(card, 2, "noskbmem");
5276 card->stats.rx_dropped++;
5279 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
5281 int qeth_setassparms_cb(struct qeth_card *card,
5282 struct qeth_reply *reply, unsigned long data)
5284 struct qeth_ipa_cmd *cmd;
5286 QETH_CARD_TEXT(card, 4, "defadpcb");
5288 cmd = (struct qeth_ipa_cmd *) data;
5289 if (cmd->hdr.return_code == 0) {
5290 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5291 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
5292 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5293 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
5294 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5296 if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
5297 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
5298 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
5299 QETH_CARD_TEXT_(card, 3, "csum:%d", card->info.csum_mask);
5301 if (cmd->data.setassparms.hdr.assist_no == IPA_OUTBOUND_CHECKSUM &&
5302 cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
5303 card->info.tx_csum_mask =
5304 cmd->data.setassparms.data.flags_32bit;
5305 QETH_CARD_TEXT_(card, 3, "tcsu:%d", card->info.tx_csum_mask);
5310 EXPORT_SYMBOL_GPL(qeth_setassparms_cb);
5312 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
5313 enum qeth_ipa_funcs ipa_func,
5314 __u16 cmd_code, __u16 len,
5315 enum qeth_prot_versions prot)
5317 struct qeth_cmd_buffer *iob;
5318 struct qeth_ipa_cmd *cmd;
5320 QETH_CARD_TEXT(card, 4, "getasscm");
5321 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
5324 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5325 cmd->data.setassparms.hdr.assist_no = ipa_func;
5326 cmd->data.setassparms.hdr.length = 8 + len;
5327 cmd->data.setassparms.hdr.command_code = cmd_code;
5328 cmd->data.setassparms.hdr.return_code = 0;
5329 cmd->data.setassparms.hdr.seq_no = 0;
5334 EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd);
5336 int qeth_send_setassparms(struct qeth_card *card,
5337 struct qeth_cmd_buffer *iob, __u16 len, long data,
5338 int (*reply_cb)(struct qeth_card *,
5339 struct qeth_reply *, unsigned long),
5343 struct qeth_ipa_cmd *cmd;
5345 QETH_CARD_TEXT(card, 4, "sendassp");
5347 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5348 if (len <= sizeof(__u32))
5349 cmd->data.setassparms.data.flags_32bit = (__u32) data;
5350 else /* (len > sizeof(__u32)) */
5351 memcpy(&cmd->data.setassparms.data, (void *) data, len);
5353 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
5356 EXPORT_SYMBOL_GPL(qeth_send_setassparms);
5358 int qeth_send_simple_setassparms(struct qeth_card *card,
5359 enum qeth_ipa_funcs ipa_func,
5360 __u16 cmd_code, long data)
5364 struct qeth_cmd_buffer *iob;
5366 QETH_CARD_TEXT(card, 4, "simassp4");
5368 length = sizeof(__u32);
5369 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5370 length, QETH_PROT_IPV4);
5373 rc = qeth_send_setassparms(card, iob, length, data,
5374 qeth_setassparms_cb, NULL);
5377 EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms);
5379 static void qeth_unregister_dbf_views(void)
5382 for (x = 0; x < QETH_DBF_INFOS; x++) {
5383 debug_unregister(qeth_dbf[x].id);
5384 qeth_dbf[x].id = NULL;
5388 void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
5390 char dbf_txt_buf[32];
5393 if (!debug_level_enabled(id, level))
5395 va_start(args, fmt);
5396 vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
5398 debug_text_event(id, level, dbf_txt_buf);
5400 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
5402 static int qeth_register_dbf_views(void)
5407 for (x = 0; x < QETH_DBF_INFOS; x++) {
5408 /* register the areas */
5409 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
5413 if (qeth_dbf[x].id == NULL) {
5414 qeth_unregister_dbf_views();
5418 /* register a view */
5419 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
5421 qeth_unregister_dbf_views();
5425 /* set a passing level */
5426 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
5432 int qeth_core_load_discipline(struct qeth_card *card,
5433 enum qeth_discipline_id discipline)
5436 mutex_lock(&qeth_mod_mutex);
5437 switch (discipline) {
5438 case QETH_DISCIPLINE_LAYER3:
5439 card->discipline = try_then_request_module(
5440 symbol_get(qeth_l3_discipline), "qeth_l3");
5442 case QETH_DISCIPLINE_LAYER2:
5443 card->discipline = try_then_request_module(
5444 symbol_get(qeth_l2_discipline), "qeth_l2");
5447 if (!card->discipline) {
5448 dev_err(&card->gdev->dev, "There is no kernel module to "
5449 "support discipline %d\n", discipline);
5452 mutex_unlock(&qeth_mod_mutex);
5456 void qeth_core_free_discipline(struct qeth_card *card)
5458 if (card->options.layer2)
5459 symbol_put(qeth_l2_discipline);
5461 symbol_put(qeth_l3_discipline);
5462 card->discipline = NULL;
5465 static const struct device_type qeth_generic_devtype = {
5466 .name = "qeth_generic",
5467 .groups = qeth_generic_attr_groups,
5469 static const struct device_type qeth_osn_devtype = {
5471 .groups = qeth_osn_attr_groups,
5474 #define DBF_NAME_LEN 20
5476 struct qeth_dbf_entry {
5477 char dbf_name[DBF_NAME_LEN];
5478 debug_info_t *dbf_info;
5479 struct list_head dbf_list;
5482 static LIST_HEAD(qeth_dbf_list);
5483 static DEFINE_MUTEX(qeth_dbf_list_mutex);
5485 static debug_info_t *qeth_get_dbf_entry(char *name)
5487 struct qeth_dbf_entry *entry;
5488 debug_info_t *rc = NULL;
5490 mutex_lock(&qeth_dbf_list_mutex);
5491 list_for_each_entry(entry, &qeth_dbf_list, dbf_list) {
5492 if (strcmp(entry->dbf_name, name) == 0) {
5493 rc = entry->dbf_info;
5497 mutex_unlock(&qeth_dbf_list_mutex);
5501 static int qeth_add_dbf_entry(struct qeth_card *card, char *name)
5503 struct qeth_dbf_entry *new_entry;
5505 card->debug = debug_register(name, 2, 1, 8);
5507 QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
5510 if (debug_register_view(card->debug, &debug_hex_ascii_view))
5512 new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL);
5515 strncpy(new_entry->dbf_name, name, DBF_NAME_LEN);
5516 new_entry->dbf_info = card->debug;
5517 mutex_lock(&qeth_dbf_list_mutex);
5518 list_add(&new_entry->dbf_list, &qeth_dbf_list);
5519 mutex_unlock(&qeth_dbf_list_mutex);
5524 debug_unregister(card->debug);
5529 static void qeth_clear_dbf_list(void)
5531 struct qeth_dbf_entry *entry, *tmp;
5533 mutex_lock(&qeth_dbf_list_mutex);
5534 list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) {
5535 list_del(&entry->dbf_list);
5536 debug_unregister(entry->dbf_info);
5539 mutex_unlock(&qeth_dbf_list_mutex);
5542 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
5544 struct qeth_card *card;
5547 unsigned long flags;
5548 char dbf_name[DBF_NAME_LEN];
5550 QETH_DBF_TEXT(SETUP, 2, "probedev");
5553 if (!get_device(dev))
5556 QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
5558 card = qeth_alloc_card();
5560 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
5565 snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
5566 dev_name(&gdev->dev));
5567 card->debug = qeth_get_dbf_entry(dbf_name);
5569 rc = qeth_add_dbf_entry(card, dbf_name);
5574 card->read.ccwdev = gdev->cdev[0];
5575 card->write.ccwdev = gdev->cdev[1];
5576 card->data.ccwdev = gdev->cdev[2];
5577 dev_set_drvdata(&gdev->dev, card);
5579 gdev->cdev[0]->handler = qeth_irq;
5580 gdev->cdev[1]->handler = qeth_irq;
5581 gdev->cdev[2]->handler = qeth_irq;
5583 rc = qeth_determine_card_type(card);
5585 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
5588 rc = qeth_setup_card(card);
5590 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
5594 if (card->info.type == QETH_CARD_TYPE_OSN)
5595 gdev->dev.type = &qeth_osn_devtype;
5597 gdev->dev.type = &qeth_generic_devtype;
5599 switch (card->info.type) {
5600 case QETH_CARD_TYPE_OSN:
5601 case QETH_CARD_TYPE_OSM:
5602 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
5605 rc = card->discipline->setup(card->gdev);
5608 case QETH_CARD_TYPE_OSD:
5609 case QETH_CARD_TYPE_OSX:
5614 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5615 list_add_tail(&card->list, &qeth_core_card_list.list);
5616 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5618 qeth_determine_capabilities(card);
5622 qeth_core_free_discipline(card);
5624 qeth_core_free_card(card);
5630 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
5632 unsigned long flags;
5633 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5635 QETH_DBF_TEXT(SETUP, 2, "removedv");
5637 if (card->discipline) {
5638 card->discipline->remove(gdev);
5639 qeth_core_free_discipline(card);
5642 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5643 list_del(&card->list);
5644 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5645 qeth_core_free_card(card);
5646 dev_set_drvdata(&gdev->dev, NULL);
5647 put_device(&gdev->dev);
5651 static int qeth_core_set_online(struct ccwgroup_device *gdev)
5653 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5657 if (!card->discipline) {
5658 if (card->info.type == QETH_CARD_TYPE_IQD)
5659 def_discipline = QETH_DISCIPLINE_LAYER3;
5661 def_discipline = QETH_DISCIPLINE_LAYER2;
5662 rc = qeth_core_load_discipline(card, def_discipline);
5665 rc = card->discipline->setup(card->gdev);
5669 rc = card->discipline->set_online(gdev);
5674 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
5676 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5677 return card->discipline->set_offline(gdev);
5680 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
5682 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5683 if (card->discipline && card->discipline->shutdown)
5684 card->discipline->shutdown(gdev);
5687 static int qeth_core_prepare(struct ccwgroup_device *gdev)
5689 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5690 if (card->discipline && card->discipline->prepare)
5691 return card->discipline->prepare(gdev);
5695 static void qeth_core_complete(struct ccwgroup_device *gdev)
5697 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5698 if (card->discipline && card->discipline->complete)
5699 card->discipline->complete(gdev);
5702 static int qeth_core_freeze(struct ccwgroup_device *gdev)
5704 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5705 if (card->discipline && card->discipline->freeze)
5706 return card->discipline->freeze(gdev);
5710 static int qeth_core_thaw(struct ccwgroup_device *gdev)
5712 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5713 if (card->discipline && card->discipline->thaw)
5714 return card->discipline->thaw(gdev);
5718 static int qeth_core_restore(struct ccwgroup_device *gdev)
5720 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5721 if (card->discipline && card->discipline->restore)
5722 return card->discipline->restore(gdev);
5726 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
5728 .owner = THIS_MODULE,
5731 .setup = qeth_core_probe_device,
5732 .remove = qeth_core_remove_device,
5733 .set_online = qeth_core_set_online,
5734 .set_offline = qeth_core_set_offline,
5735 .shutdown = qeth_core_shutdown,
5736 .prepare = qeth_core_prepare,
5737 .complete = qeth_core_complete,
5738 .freeze = qeth_core_freeze,
5739 .thaw = qeth_core_thaw,
5740 .restore = qeth_core_restore,
5743 static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv,
5744 const char *buf, size_t count)
5748 err = ccwgroup_create_dev(qeth_core_root_dev,
5749 &qeth_core_ccwgroup_driver, 3, buf);
5751 return err ? err : count;
5753 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
5755 static struct attribute *qeth_drv_attrs[] = {
5756 &driver_attr_group.attr,
5759 static struct attribute_group qeth_drv_attr_group = {
5760 .attrs = qeth_drv_attrs,
5762 static const struct attribute_group *qeth_drv_attr_groups[] = {
5763 &qeth_drv_attr_group,
5768 const char str[ETH_GSTRING_LEN];
5769 } qeth_ethtool_stats_keys[] = {
5774 {"tx skbs no packing"},
5775 {"tx buffers no packing"},
5776 {"tx skbs packing"},
5777 {"tx buffers packing"},
5780 /* 10 */{"rx sg skbs"},
5782 {"rx sg page allocs"},
5783 {"tx large kbytes"},
5785 {"tx pk state ch n->p"},
5786 {"tx pk state ch p->n"},
5787 {"tx pk watermark low"},
5788 {"tx pk watermark high"},
5789 {"queue 0 buffer usage"},
5790 /* 20 */{"queue 1 buffer usage"},
5791 {"queue 2 buffer usage"},
5792 {"queue 3 buffer usage"},
5795 {"rx do_QDIO time"},
5796 {"rx do_QDIO count"},
5797 {"tx handler time"},
5798 {"tx handler count"},
5800 /* 30 */{"tx count"},
5801 {"tx do_QDIO time"},
5802 {"tx do_QDIO count"},
5806 {"cq handler count"},
5810 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
5812 switch (stringset) {
5814 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
5819 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
5821 void qeth_core_get_ethtool_stats(struct net_device *dev,
5822 struct ethtool_stats *stats, u64 *data)
5824 struct qeth_card *card = dev->ml_priv;
5825 data[0] = card->stats.rx_packets -
5826 card->perf_stats.initial_rx_packets;
5827 data[1] = card->perf_stats.bufs_rec;
5828 data[2] = card->stats.tx_packets -
5829 card->perf_stats.initial_tx_packets;
5830 data[3] = card->perf_stats.bufs_sent;
5831 data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
5832 - card->perf_stats.skbs_sent_pack;
5833 data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
5834 data[6] = card->perf_stats.skbs_sent_pack;
5835 data[7] = card->perf_stats.bufs_sent_pack;
5836 data[8] = card->perf_stats.sg_skbs_sent;
5837 data[9] = card->perf_stats.sg_frags_sent;
5838 data[10] = card->perf_stats.sg_skbs_rx;
5839 data[11] = card->perf_stats.sg_frags_rx;
5840 data[12] = card->perf_stats.sg_alloc_page_rx;
5841 data[13] = (card->perf_stats.large_send_bytes >> 10);
5842 data[14] = card->perf_stats.large_send_cnt;
5843 data[15] = card->perf_stats.sc_dp_p;
5844 data[16] = card->perf_stats.sc_p_dp;
5845 data[17] = QETH_LOW_WATERMARK_PACK;
5846 data[18] = QETH_HIGH_WATERMARK_PACK;
5847 data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
5848 data[20] = (card->qdio.no_out_queues > 1) ?
5849 atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
5850 data[21] = (card->qdio.no_out_queues > 2) ?
5851 atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
5852 data[22] = (card->qdio.no_out_queues > 3) ?
5853 atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
5854 data[23] = card->perf_stats.inbound_time;
5855 data[24] = card->perf_stats.inbound_cnt;
5856 data[25] = card->perf_stats.inbound_do_qdio_time;
5857 data[26] = card->perf_stats.inbound_do_qdio_cnt;
5858 data[27] = card->perf_stats.outbound_handler_time;
5859 data[28] = card->perf_stats.outbound_handler_cnt;
5860 data[29] = card->perf_stats.outbound_time;
5861 data[30] = card->perf_stats.outbound_cnt;
5862 data[31] = card->perf_stats.outbound_do_qdio_time;
5863 data[32] = card->perf_stats.outbound_do_qdio_cnt;
5864 data[33] = card->perf_stats.tx_csum;
5865 data[34] = card->perf_stats.tx_lin;
5866 data[35] = card->perf_stats.tx_linfail;
5867 data[36] = card->perf_stats.cq_cnt;
5868 data[37] = card->perf_stats.cq_time;
5870 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
5872 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
5874 switch (stringset) {
5876 memcpy(data, &qeth_ethtool_stats_keys,
5877 sizeof(qeth_ethtool_stats_keys));
5884 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
5886 void qeth_core_get_drvinfo(struct net_device *dev,
5887 struct ethtool_drvinfo *info)
5889 struct qeth_card *card = dev->ml_priv;
5891 strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
5892 sizeof(info->driver));
5893 strlcpy(info->version, "1.0", sizeof(info->version));
5894 strlcpy(info->fw_version, card->info.mcl_level,
5895 sizeof(info->fw_version));
5896 snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
5897 CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
5899 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
5901 /* Helper function to fill 'advertizing' and 'supported' which are the same. */
5902 /* Autoneg and full-duplex are supported and advertized uncondionally. */
5903 /* Always advertize and support all speeds up to specified, and only one */
5904 /* specified port type. */
5905 static void qeth_set_ecmd_adv_sup(struct ethtool_cmd *ecmd,
5906 int maxspeed, int porttype)
5908 int port_sup, port_adv, spd_sup, spd_adv;
5912 port_sup = SUPPORTED_TP;
5913 port_adv = ADVERTISED_TP;
5916 port_sup = SUPPORTED_FIBRE;
5917 port_adv = ADVERTISED_FIBRE;
5920 port_sup = SUPPORTED_TP;
5921 port_adv = ADVERTISED_TP;
5925 /* "Fallthrough" case'es ordered from high to low result in setting */
5926 /* flags cumulatively, starting from the specified speed and down to */
5927 /* the lowest possible. */
5932 spd_sup |= SUPPORTED_10000baseT_Full;
5933 spd_adv |= ADVERTISED_10000baseT_Full;
5935 spd_sup |= SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
5936 spd_adv |= ADVERTISED_1000baseT_Half |
5937 ADVERTISED_1000baseT_Full;
5939 spd_sup |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
5940 spd_adv |= ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
5942 spd_sup |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
5943 spd_adv |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
5946 spd_sup = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
5947 spd_adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
5950 ecmd->advertising = ADVERTISED_Autoneg | port_adv | spd_adv;
5951 ecmd->supported = SUPPORTED_Autoneg | port_sup | spd_sup;
5954 int qeth_core_ethtool_get_settings(struct net_device *netdev,
5955 struct ethtool_cmd *ecmd)
5957 struct qeth_card *card = netdev->ml_priv;
5958 enum qeth_link_types link_type;
5959 struct carrier_info carrier_info;
5963 if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
5964 link_type = QETH_LINK_TYPE_10GBIT_ETH;
5966 link_type = card->info.link_type;
5968 ecmd->transceiver = XCVR_INTERNAL;
5969 ecmd->duplex = DUPLEX_FULL;
5970 ecmd->autoneg = AUTONEG_ENABLE;
5972 switch (link_type) {
5973 case QETH_LINK_TYPE_FAST_ETH:
5974 case QETH_LINK_TYPE_LANE_ETH100:
5975 qeth_set_ecmd_adv_sup(ecmd, SPEED_100, PORT_TP);
5977 ecmd->port = PORT_TP;
5980 case QETH_LINK_TYPE_GBIT_ETH:
5981 case QETH_LINK_TYPE_LANE_ETH1000:
5982 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
5984 ecmd->port = PORT_FIBRE;
5987 case QETH_LINK_TYPE_10GBIT_ETH:
5988 qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
5989 speed = SPEED_10000;
5990 ecmd->port = PORT_FIBRE;
5994 qeth_set_ecmd_adv_sup(ecmd, SPEED_10, PORT_TP);
5996 ecmd->port = PORT_TP;
5998 ethtool_cmd_speed_set(ecmd, speed);
6000 /* Check if we can obtain more accurate information. */
6001 /* If QUERY_CARD_INFO command is not supported or fails, */
6002 /* just return the heuristics that was filled above. */
6003 if (!qeth_card_hw_is_reachable(card))
6005 rc = qeth_query_card_info(card, &carrier_info);
6006 if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */
6008 if (rc) /* report error from the hardware operation */
6010 /* on success, fill in the information got from the hardware */
6013 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
6014 carrier_info.card_type,
6015 carrier_info.port_mode,
6016 carrier_info.port_speed);
6018 /* Update attributes for which we've obtained more authoritative */
6019 /* information, leave the rest the way they where filled above. */
6020 switch (carrier_info.card_type) {
6021 case CARD_INFO_TYPE_1G_COPPER_A:
6022 case CARD_INFO_TYPE_1G_COPPER_B:
6023 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_TP);
6024 ecmd->port = PORT_TP;
6026 case CARD_INFO_TYPE_1G_FIBRE_A:
6027 case CARD_INFO_TYPE_1G_FIBRE_B:
6028 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
6029 ecmd->port = PORT_FIBRE;
6031 case CARD_INFO_TYPE_10G_FIBRE_A:
6032 case CARD_INFO_TYPE_10G_FIBRE_B:
6033 qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
6034 ecmd->port = PORT_FIBRE;
6038 switch (carrier_info.port_mode) {
6039 case CARD_INFO_PORTM_FULLDUPLEX:
6040 ecmd->duplex = DUPLEX_FULL;
6042 case CARD_INFO_PORTM_HALFDUPLEX:
6043 ecmd->duplex = DUPLEX_HALF;
6047 switch (carrier_info.port_speed) {
6048 case CARD_INFO_PORTS_10M:
6051 case CARD_INFO_PORTS_100M:
6054 case CARD_INFO_PORTS_1G:
6057 case CARD_INFO_PORTS_10G:
6058 speed = SPEED_10000;
6061 ethtool_cmd_speed_set(ecmd, speed);
6065 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
6067 static int qeth_send_checksum_on(struct qeth_card *card, int cstype)
6072 rc = qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_START, 0);
6074 dev_warn(&card->gdev->dev,
6075 "Starting HW checksumming for %s failed, using SW checksumming\n",
6076 QETH_CARD_IFNAME(card));
6079 rxtx_arg = (cstype == IPA_OUTBOUND_CHECKSUM) ? card->info.tx_csum_mask
6080 : card->info.csum_mask;
6081 rc = qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_ENABLE,
6084 dev_warn(&card->gdev->dev,
6085 "Enabling HW checksumming for %s failed, using SW checksumming\n",
6086 QETH_CARD_IFNAME(card));
6090 dev_info(&card->gdev->dev, "HW Checksumming (%sbound) enabled\n",
6091 cstype == IPA_INBOUND_CHECKSUM ? "in" : "out");
6095 static int qeth_set_ipa_csum(struct qeth_card *card, int on, int cstype)
6100 rc = qeth_send_checksum_on(card, cstype);
6104 rc = qeth_send_simple_setassparms(card, cstype,
6105 IPA_CMD_ASS_STOP, 0);
6112 static int qeth_set_ipa_tso(struct qeth_card *card, int on)
6116 QETH_CARD_TEXT(card, 3, "sttso");
6119 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6120 IPA_CMD_ASS_START, 0);
6122 dev_warn(&card->gdev->dev,
6123 "Starting outbound TCP segmentation offload for %s failed\n",
6124 QETH_CARD_IFNAME(card));
6127 dev_info(&card->gdev->dev, "Outbound TSO enabled\n");
6129 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6130 IPA_CMD_ASS_STOP, 0);
6135 /* try to restore device features on a device after recovery */
6136 int qeth_recover_features(struct net_device *dev)
6138 struct qeth_card *card = dev->ml_priv;
6139 netdev_features_t recover = dev->features;
6141 if (recover & NETIF_F_IP_CSUM) {
6142 if (qeth_set_ipa_csum(card, 1, IPA_OUTBOUND_CHECKSUM))
6143 recover ^= NETIF_F_IP_CSUM;
6145 if (recover & NETIF_F_RXCSUM) {
6146 if (qeth_set_ipa_csum(card, 1, IPA_INBOUND_CHECKSUM))
6147 recover ^= NETIF_F_RXCSUM;
6149 if (recover & NETIF_F_TSO) {
6150 if (qeth_set_ipa_tso(card, 1))
6151 recover ^= NETIF_F_TSO;
6154 if (recover == dev->features)
6157 dev_warn(&card->gdev->dev,
6158 "Device recovery failed to restore all offload features\n");
6159 dev->features = recover;
6162 EXPORT_SYMBOL_GPL(qeth_recover_features);
6164 int qeth_set_features(struct net_device *dev, netdev_features_t features)
6166 struct qeth_card *card = dev->ml_priv;
6167 netdev_features_t changed = dev->features ^ features;
6170 QETH_DBF_TEXT(SETUP, 2, "setfeat");
6171 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
6173 if ((changed & NETIF_F_IP_CSUM)) {
6174 rc = qeth_set_ipa_csum(card,
6175 features & NETIF_F_IP_CSUM ? 1 : 0,
6176 IPA_OUTBOUND_CHECKSUM);
6178 changed ^= NETIF_F_IP_CSUM;
6180 if ((changed & NETIF_F_RXCSUM)) {
6181 rc = qeth_set_ipa_csum(card,
6182 features & NETIF_F_RXCSUM ? 1 : 0,
6183 IPA_INBOUND_CHECKSUM);
6185 changed ^= NETIF_F_RXCSUM;
6187 if ((changed & NETIF_F_TSO)) {
6188 rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO ? 1 : 0);
6190 changed ^= NETIF_F_TSO;
6193 /* everything changed successfully? */
6194 if ((dev->features ^ features) == changed)
6196 /* something went wrong. save changed features and return error */
6197 dev->features ^= changed;
6200 EXPORT_SYMBOL_GPL(qeth_set_features);
6202 netdev_features_t qeth_fix_features(struct net_device *dev,
6203 netdev_features_t features)
6205 struct qeth_card *card = dev->ml_priv;
6207 QETH_DBF_TEXT(SETUP, 2, "fixfeat");
6208 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
6209 features &= ~NETIF_F_IP_CSUM;
6210 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
6211 features &= ~NETIF_F_RXCSUM;
6212 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
6213 features &= ~NETIF_F_TSO;
6214 dev_info(&card->gdev->dev, "Outbound TSO not supported on %s\n",
6215 QETH_CARD_IFNAME(card));
6217 /* if the card isn't up, remove features that require hw changes */
6218 if (card->state == CARD_STATE_DOWN ||
6219 card->state == CARD_STATE_RECOVER)
6220 features = features & ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
6222 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
6225 EXPORT_SYMBOL_GPL(qeth_fix_features);
6227 static int __init qeth_core_init(void)
6231 pr_info("loading core functions\n");
6232 INIT_LIST_HEAD(&qeth_core_card_list.list);
6233 INIT_LIST_HEAD(&qeth_dbf_list);
6234 rwlock_init(&qeth_core_card_list.rwlock);
6235 mutex_init(&qeth_mod_mutex);
6237 qeth_wq = create_singlethread_workqueue("qeth_wq");
6239 rc = qeth_register_dbf_views();
6242 qeth_core_root_dev = root_device_register("qeth");
6243 rc = PTR_ERR_OR_ZERO(qeth_core_root_dev);
6246 qeth_core_header_cache = kmem_cache_create("qeth_hdr",
6247 sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
6248 if (!qeth_core_header_cache) {
6252 qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf",
6253 sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL);
6254 if (!qeth_qdio_outbuf_cache) {
6258 rc = ccw_driver_register(&qeth_ccw_driver);
6261 qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups;
6262 rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
6269 ccw_driver_unregister(&qeth_ccw_driver);
6271 kmem_cache_destroy(qeth_qdio_outbuf_cache);
6273 kmem_cache_destroy(qeth_core_header_cache);
6275 root_device_unregister(qeth_core_root_dev);
6277 qeth_unregister_dbf_views();
6279 pr_err("Initializing the qeth device driver failed\n");
6283 static void __exit qeth_core_exit(void)
6285 qeth_clear_dbf_list();
6286 destroy_workqueue(qeth_wq);
6287 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
6288 ccw_driver_unregister(&qeth_ccw_driver);
6289 kmem_cache_destroy(qeth_qdio_outbuf_cache);
6290 kmem_cache_destroy(qeth_core_header_cache);
6291 root_device_unregister(qeth_core_root_dev);
6292 qeth_unregister_dbf_views();
6293 pr_info("core functions removed\n");
6296 module_init(qeth_core_init);
6297 module_exit(qeth_core_exit);
6298 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
6299 MODULE_DESCRIPTION("qeth core functions");
6300 MODULE_LICENSE("GPL");