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 struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
59 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
60 static void qeth_free_buffer_pool(struct qeth_card *);
61 static int qeth_qdio_establish(struct qeth_card *);
62 static void qeth_free_qdio_buffers(struct qeth_card *);
63 static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
64 struct qeth_qdio_out_buffer *buf,
65 enum iucv_tx_notify notification);
66 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
67 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
68 struct qeth_qdio_out_buffer *buf,
69 enum qeth_qdio_buffer_states newbufstate);
70 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
72 struct workqueue_struct *qeth_wq;
73 EXPORT_SYMBOL_GPL(qeth_wq);
75 int qeth_card_hw_is_reachable(struct qeth_card *card)
77 return (card->state == CARD_STATE_SOFTSETUP) ||
78 (card->state == CARD_STATE_UP);
80 EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable);
82 static void qeth_close_dev_handler(struct work_struct *work)
84 struct qeth_card *card;
86 card = container_of(work, struct qeth_card, close_dev_work);
87 QETH_CARD_TEXT(card, 2, "cldevhdl");
91 ccwgroup_set_offline(card->gdev);
94 void qeth_close_dev(struct qeth_card *card)
96 QETH_CARD_TEXT(card, 2, "cldevsubm");
97 queue_work(qeth_wq, &card->close_dev_work);
99 EXPORT_SYMBOL_GPL(qeth_close_dev);
101 static inline const char *qeth_get_cardname(struct qeth_card *card)
103 if (card->info.guestlan) {
104 switch (card->info.type) {
105 case QETH_CARD_TYPE_OSD:
106 return " Virtual NIC QDIO";
107 case QETH_CARD_TYPE_IQD:
108 return " Virtual NIC Hiper";
109 case QETH_CARD_TYPE_OSM:
110 return " Virtual NIC QDIO - OSM";
111 case QETH_CARD_TYPE_OSX:
112 return " Virtual NIC QDIO - OSX";
117 switch (card->info.type) {
118 case QETH_CARD_TYPE_OSD:
119 return " OSD Express";
120 case QETH_CARD_TYPE_IQD:
121 return " HiperSockets";
122 case QETH_CARD_TYPE_OSN:
124 case QETH_CARD_TYPE_OSM:
126 case QETH_CARD_TYPE_OSX:
135 /* max length to be returned: 14 */
136 const char *qeth_get_cardname_short(struct qeth_card *card)
138 if (card->info.guestlan) {
139 switch (card->info.type) {
140 case QETH_CARD_TYPE_OSD:
141 return "Virt.NIC QDIO";
142 case QETH_CARD_TYPE_IQD:
143 return "Virt.NIC Hiper";
144 case QETH_CARD_TYPE_OSM:
145 return "Virt.NIC OSM";
146 case QETH_CARD_TYPE_OSX:
147 return "Virt.NIC OSX";
152 switch (card->info.type) {
153 case QETH_CARD_TYPE_OSD:
154 switch (card->info.link_type) {
155 case QETH_LINK_TYPE_FAST_ETH:
157 case QETH_LINK_TYPE_HSTR:
159 case QETH_LINK_TYPE_GBIT_ETH:
161 case QETH_LINK_TYPE_10GBIT_ETH:
163 case QETH_LINK_TYPE_LANE_ETH100:
164 return "OSD_FE_LANE";
165 case QETH_LINK_TYPE_LANE_TR:
166 return "OSD_TR_LANE";
167 case QETH_LINK_TYPE_LANE_ETH1000:
168 return "OSD_GbE_LANE";
169 case QETH_LINK_TYPE_LANE:
170 return "OSD_ATM_LANE";
172 return "OSD_Express";
174 case QETH_CARD_TYPE_IQD:
175 return "HiperSockets";
176 case QETH_CARD_TYPE_OSN:
178 case QETH_CARD_TYPE_OSM:
180 case QETH_CARD_TYPE_OSX:
189 void qeth_set_recovery_task(struct qeth_card *card)
191 card->recovery_task = current;
193 EXPORT_SYMBOL_GPL(qeth_set_recovery_task);
195 void qeth_clear_recovery_task(struct qeth_card *card)
197 card->recovery_task = NULL;
199 EXPORT_SYMBOL_GPL(qeth_clear_recovery_task);
201 static bool qeth_is_recovery_task(const struct qeth_card *card)
203 return card->recovery_task == current;
206 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
207 int clear_start_mask)
211 spin_lock_irqsave(&card->thread_mask_lock, flags);
212 card->thread_allowed_mask = threads;
213 if (clear_start_mask)
214 card->thread_start_mask &= threads;
215 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
216 wake_up(&card->wait_q);
218 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
220 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
225 spin_lock_irqsave(&card->thread_mask_lock, flags);
226 rc = (card->thread_running_mask & threads);
227 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
230 EXPORT_SYMBOL_GPL(qeth_threads_running);
232 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
234 if (qeth_is_recovery_task(card))
236 return wait_event_interruptible(card->wait_q,
237 qeth_threads_running(card, threads) == 0);
239 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
241 void qeth_clear_working_pool_list(struct qeth_card *card)
243 struct qeth_buffer_pool_entry *pool_entry, *tmp;
245 QETH_CARD_TEXT(card, 5, "clwrklst");
246 list_for_each_entry_safe(pool_entry, tmp,
247 &card->qdio.in_buf_pool.entry_list, list){
248 list_del(&pool_entry->list);
251 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
253 static int qeth_alloc_buffer_pool(struct qeth_card *card)
255 struct qeth_buffer_pool_entry *pool_entry;
259 QETH_CARD_TEXT(card, 5, "alocpool");
260 for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
261 pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL);
263 qeth_free_buffer_pool(card);
266 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
267 ptr = (void *) __get_free_page(GFP_KERNEL);
270 free_page((unsigned long)
271 pool_entry->elements[--j]);
273 qeth_free_buffer_pool(card);
276 pool_entry->elements[j] = ptr;
278 list_add(&pool_entry->init_list,
279 &card->qdio.init_pool.entry_list);
284 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
286 QETH_CARD_TEXT(card, 2, "realcbp");
288 if ((card->state != CARD_STATE_DOWN) &&
289 (card->state != CARD_STATE_RECOVER))
292 /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
293 qeth_clear_working_pool_list(card);
294 qeth_free_buffer_pool(card);
295 card->qdio.in_buf_pool.buf_count = bufcnt;
296 card->qdio.init_pool.buf_count = bufcnt;
297 return qeth_alloc_buffer_pool(card);
299 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
301 static void qeth_free_qdio_queue(struct qeth_qdio_q *q)
306 qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
310 static struct qeth_qdio_q *qeth_alloc_qdio_queue(void)
312 struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
318 if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
323 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
324 q->bufs[i].buffer = q->qdio_bufs[i];
326 QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *));
330 static inline int qeth_cq_init(struct qeth_card *card)
334 if (card->options.cq == QETH_CQ_ENABLED) {
335 QETH_DBF_TEXT(SETUP, 2, "cqinit");
336 qdio_reset_buffers(card->qdio.c_q->qdio_bufs,
337 QDIO_MAX_BUFFERS_PER_Q);
338 card->qdio.c_q->next_buf_to_init = 127;
339 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
340 card->qdio.no_in_queues - 1, 0,
343 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
352 static inline int qeth_alloc_cq(struct qeth_card *card)
356 if (card->options.cq == QETH_CQ_ENABLED) {
358 struct qdio_outbuf_state *outbuf_states;
360 QETH_DBF_TEXT(SETUP, 2, "cqon");
361 card->qdio.c_q = qeth_alloc_qdio_queue();
362 if (!card->qdio.c_q) {
366 card->qdio.no_in_queues = 2;
367 card->qdio.out_bufstates =
368 kzalloc(card->qdio.no_out_queues *
369 QDIO_MAX_BUFFERS_PER_Q *
370 sizeof(struct qdio_outbuf_state), GFP_KERNEL);
371 outbuf_states = card->qdio.out_bufstates;
372 if (outbuf_states == NULL) {
376 for (i = 0; i < card->qdio.no_out_queues; ++i) {
377 card->qdio.out_qs[i]->bufstates = outbuf_states;
378 outbuf_states += QDIO_MAX_BUFFERS_PER_Q;
381 QETH_DBF_TEXT(SETUP, 2, "nocq");
382 card->qdio.c_q = NULL;
383 card->qdio.no_in_queues = 1;
385 QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues);
390 qeth_free_qdio_queue(card->qdio.c_q);
391 card->qdio.c_q = NULL;
393 dev_err(&card->gdev->dev, "Failed to create completion queue\n");
397 static inline void qeth_free_cq(struct qeth_card *card)
399 if (card->qdio.c_q) {
400 --card->qdio.no_in_queues;
401 qeth_free_qdio_queue(card->qdio.c_q);
402 card->qdio.c_q = NULL;
404 kfree(card->qdio.out_bufstates);
405 card->qdio.out_bufstates = NULL;
408 static inline enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
410 enum iucv_tx_notify n;
414 n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK;
420 n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE :
421 TX_NOTIFY_UNREACHABLE;
424 n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR :
425 TX_NOTIFY_GENERALERROR;
432 static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q,
433 int bidx, int forced_cleanup)
435 if (q->card->options.cq != QETH_CQ_ENABLED)
438 if (q->bufs[bidx]->next_pending != NULL) {
439 struct qeth_qdio_out_buffer *head = q->bufs[bidx];
440 struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending;
443 if (forced_cleanup ||
444 atomic_read(&c->state) ==
445 QETH_QDIO_BUF_HANDLED_DELAYED) {
446 struct qeth_qdio_out_buffer *f = c;
447 QETH_CARD_TEXT(f->q->card, 5, "fp");
448 QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f);
449 /* release here to avoid interleaving between
450 outbound tasklet and inbound tasklet
451 regarding notifications and lifecycle */
452 qeth_release_skbs(c);
455 WARN_ON_ONCE(head->next_pending != f);
456 head->next_pending = c;
457 kmem_cache_free(qeth_qdio_outbuf_cache, f);
465 if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) ==
466 QETH_QDIO_BUF_HANDLED_DELAYED)) {
467 /* for recovery situations */
468 q->bufs[bidx]->aob = q->bufstates[bidx].aob;
469 qeth_init_qdio_out_buf(q, bidx);
470 QETH_CARD_TEXT(q->card, 2, "clprecov");
475 static inline void qeth_qdio_handle_aob(struct qeth_card *card,
476 unsigned long phys_aob_addr) {
478 struct qeth_qdio_out_buffer *buffer;
479 enum iucv_tx_notify notification;
481 aob = (struct qaob *) phys_to_virt(phys_aob_addr);
482 QETH_CARD_TEXT(card, 5, "haob");
483 QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr);
484 buffer = (struct qeth_qdio_out_buffer *) aob->user1;
485 QETH_CARD_TEXT_(card, 5, "%lx", aob->user1);
487 if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED,
488 QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) {
489 notification = TX_NOTIFY_OK;
491 WARN_ON_ONCE(atomic_read(&buffer->state) !=
492 QETH_QDIO_BUF_PENDING);
493 atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ);
494 notification = TX_NOTIFY_DELAYED_OK;
497 if (aob->aorc != 0) {
498 QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc);
499 notification = qeth_compute_cq_notification(aob->aorc, 1);
501 qeth_notify_skbs(buffer->q, buffer, notification);
504 qeth_clear_output_buffer(buffer->q, buffer,
505 QETH_QDIO_BUF_HANDLED_DELAYED);
507 /* from here on: do not touch buffer anymore */
508 qdio_release_aob(aob);
511 static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
513 return card->options.cq == QETH_CQ_ENABLED &&
514 card->qdio.c_q != NULL &&
516 queue == card->qdio.no_in_queues - 1;
520 static int qeth_issue_next_read(struct qeth_card *card)
523 struct qeth_cmd_buffer *iob;
525 QETH_CARD_TEXT(card, 5, "issnxrd");
526 if (card->read.state != CH_STATE_UP)
528 iob = qeth_get_buffer(&card->read);
530 dev_warn(&card->gdev->dev, "The qeth device driver "
531 "failed to recover an error on the device\n");
532 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
533 "available\n", dev_name(&card->gdev->dev));
536 qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
537 QETH_CARD_TEXT(card, 6, "noirqpnd");
538 rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
541 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
542 "rc=%i\n", dev_name(&card->gdev->dev), rc);
543 atomic_set(&card->read.irq_pending, 0);
544 card->read_or_write_problem = 1;
545 qeth_schedule_recovery(card);
546 wake_up(&card->wait_q);
551 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
553 struct qeth_reply *reply;
555 reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
557 atomic_set(&reply->refcnt, 1);
558 atomic_set(&reply->received, 0);
564 static void qeth_get_reply(struct qeth_reply *reply)
566 WARN_ON(atomic_read(&reply->refcnt) <= 0);
567 atomic_inc(&reply->refcnt);
570 static void qeth_put_reply(struct qeth_reply *reply)
572 WARN_ON(atomic_read(&reply->refcnt) <= 0);
573 if (atomic_dec_and_test(&reply->refcnt))
577 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
578 struct qeth_card *card)
581 int com = cmd->hdr.command;
582 ipa_name = qeth_get_ipa_cmd_name(com);
584 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
586 ipa_name, com, dev_name(&card->gdev->dev),
587 QETH_CARD_IFNAME(card), rc,
588 qeth_get_ipa_msg(rc));
590 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
591 ipa_name, com, dev_name(&card->gdev->dev),
592 QETH_CARD_IFNAME(card));
595 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
596 struct qeth_cmd_buffer *iob)
598 struct qeth_ipa_cmd *cmd = NULL;
600 QETH_CARD_TEXT(card, 5, "chkipad");
601 if (IS_IPA(iob->data)) {
602 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
603 if (IS_IPA_REPLY(cmd)) {
604 if (cmd->hdr.command != IPA_CMD_SETCCID &&
605 cmd->hdr.command != IPA_CMD_DELCCID &&
606 cmd->hdr.command != IPA_CMD_MODCCID &&
607 cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
608 qeth_issue_ipa_msg(cmd,
609 cmd->hdr.return_code, card);
612 switch (cmd->hdr.command) {
613 case IPA_CMD_STOPLAN:
614 if (cmd->hdr.return_code ==
615 IPA_RC_VEPA_TO_VEB_TRANSITION) {
616 dev_err(&card->gdev->dev,
617 "Interface %s is down because the "
618 "adjacent port is no longer in "
619 "reflective relay mode\n",
620 QETH_CARD_IFNAME(card));
621 qeth_close_dev(card);
623 dev_warn(&card->gdev->dev,
624 "The link for interface %s on CHPID"
626 QETH_CARD_IFNAME(card),
628 qeth_issue_ipa_msg(cmd,
629 cmd->hdr.return_code, card);
631 card->lan_online = 0;
632 if (card->dev && netif_carrier_ok(card->dev))
633 netif_carrier_off(card->dev);
635 case IPA_CMD_STARTLAN:
636 dev_info(&card->gdev->dev,
637 "The link for %s on CHPID 0x%X has"
639 QETH_CARD_IFNAME(card),
641 netif_carrier_on(card->dev);
642 card->lan_online = 1;
643 if (card->info.hwtrap)
644 card->info.hwtrap = 2;
645 qeth_schedule_recovery(card);
647 case IPA_CMD_SETBRIDGEPORT_IQD:
648 case IPA_CMD_SETBRIDGEPORT_OSA:
649 case IPA_CMD_ADDRESS_CHANGE_NOTIF:
650 if (card->discipline->control_event_handler
655 case IPA_CMD_MODCCID:
657 case IPA_CMD_REGISTER_LOCAL_ADDR:
658 QETH_CARD_TEXT(card, 3, "irla");
660 case IPA_CMD_UNREGISTER_LOCAL_ADDR:
661 QETH_CARD_TEXT(card, 3, "urla");
664 QETH_DBF_MESSAGE(2, "Received data is IPA "
665 "but not a reply!\n");
673 void qeth_clear_ipacmd_list(struct qeth_card *card)
675 struct qeth_reply *reply, *r;
678 QETH_CARD_TEXT(card, 4, "clipalst");
680 spin_lock_irqsave(&card->lock, flags);
681 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
682 qeth_get_reply(reply);
684 atomic_inc(&reply->received);
685 list_del_init(&reply->list);
686 wake_up(&reply->wait_q);
687 qeth_put_reply(reply);
689 spin_unlock_irqrestore(&card->lock, flags);
690 atomic_set(&card->write.irq_pending, 0);
692 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
694 static int qeth_check_idx_response(struct qeth_card *card,
695 unsigned char *buffer)
700 QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
701 if ((buffer[2] & 0xc0) == 0xc0) {
702 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
703 "with cause code 0x%02x%s\n",
705 ((buffer[4] == 0x22) ?
706 " -- try another portname" : ""));
707 QETH_CARD_TEXT(card, 2, "ckidxres");
708 QETH_CARD_TEXT(card, 2, " idxterm");
709 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
710 if (buffer[4] == 0xf6) {
711 dev_err(&card->gdev->dev,
712 "The qeth device is not configured "
713 "for the OSI layer required by z/VM\n");
721 static struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
723 struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
724 dev_get_drvdata(&cdev->dev))->dev);
728 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
731 struct qeth_card *card;
733 card = CARD_FROM_CDEV(channel->ccwdev);
734 QETH_CARD_TEXT(card, 4, "setupccw");
735 if (channel == &card->read)
736 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
738 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
739 channel->ccw.count = len;
740 channel->ccw.cda = (__u32) __pa(iob);
743 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
747 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
748 index = channel->io_buf_no;
750 if (channel->iob[index].state == BUF_STATE_FREE) {
751 channel->iob[index].state = BUF_STATE_LOCKED;
752 channel->io_buf_no = (channel->io_buf_no + 1) %
754 memset(channel->iob[index].data, 0, QETH_BUFSIZE);
755 return channel->iob + index;
757 index = (index + 1) % QETH_CMD_BUFFER_NO;
758 } while (index != channel->io_buf_no);
763 void qeth_release_buffer(struct qeth_channel *channel,
764 struct qeth_cmd_buffer *iob)
768 QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
769 spin_lock_irqsave(&channel->iob_lock, flags);
770 memset(iob->data, 0, QETH_BUFSIZE);
771 iob->state = BUF_STATE_FREE;
772 iob->callback = qeth_send_control_data_cb;
774 spin_unlock_irqrestore(&channel->iob_lock, flags);
775 wake_up(&channel->wait_q);
777 EXPORT_SYMBOL_GPL(qeth_release_buffer);
779 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
781 struct qeth_cmd_buffer *buffer = NULL;
784 spin_lock_irqsave(&channel->iob_lock, flags);
785 buffer = __qeth_get_buffer(channel);
786 spin_unlock_irqrestore(&channel->iob_lock, flags);
790 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
792 struct qeth_cmd_buffer *buffer;
793 wait_event(channel->wait_q,
794 ((buffer = qeth_get_buffer(channel)) != NULL));
797 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
799 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
803 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
804 qeth_release_buffer(channel, &channel->iob[cnt]);
806 channel->io_buf_no = 0;
808 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
810 static void qeth_send_control_data_cb(struct qeth_channel *channel,
811 struct qeth_cmd_buffer *iob)
813 struct qeth_card *card;
814 struct qeth_reply *reply, *r;
815 struct qeth_ipa_cmd *cmd;
820 card = CARD_FROM_CDEV(channel->ccwdev);
821 QETH_CARD_TEXT(card, 4, "sndctlcb");
822 rc = qeth_check_idx_response(card, iob->data);
827 qeth_clear_ipacmd_list(card);
828 qeth_schedule_recovery(card);
834 cmd = qeth_check_ipa_data(card, iob);
835 if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
837 /*in case of OSN : check if cmd is set */
838 if (card->info.type == QETH_CARD_TYPE_OSN &&
840 cmd->hdr.command != IPA_CMD_STARTLAN &&
841 card->osn_info.assist_cb != NULL) {
842 card->osn_info.assist_cb(card->dev, cmd);
846 spin_lock_irqsave(&card->lock, flags);
847 list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
848 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
849 ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
850 qeth_get_reply(reply);
851 list_del_init(&reply->list);
852 spin_unlock_irqrestore(&card->lock, flags);
854 if (reply->callback != NULL) {
856 reply->offset = (__u16)((char *)cmd -
858 keep_reply = reply->callback(card,
862 keep_reply = reply->callback(card,
867 reply->rc = (u16) cmd->hdr.return_code;
871 spin_lock_irqsave(&card->lock, flags);
872 list_add_tail(&reply->list,
873 &card->cmd_waiter_list);
874 spin_unlock_irqrestore(&card->lock, flags);
876 atomic_inc(&reply->received);
877 wake_up(&reply->wait_q);
879 qeth_put_reply(reply);
883 spin_unlock_irqrestore(&card->lock, flags);
885 memcpy(&card->seqno.pdu_hdr_ack,
886 QETH_PDU_HEADER_SEQ_NO(iob->data),
888 qeth_release_buffer(channel, iob);
891 static int qeth_setup_channel(struct qeth_channel *channel)
895 QETH_DBF_TEXT(SETUP, 2, "setupch");
896 for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
897 channel->iob[cnt].data =
898 kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
899 if (channel->iob[cnt].data == NULL)
901 channel->iob[cnt].state = BUF_STATE_FREE;
902 channel->iob[cnt].channel = channel;
903 channel->iob[cnt].callback = qeth_send_control_data_cb;
904 channel->iob[cnt].rc = 0;
906 if (cnt < QETH_CMD_BUFFER_NO) {
908 kfree(channel->iob[cnt].data);
912 channel->io_buf_no = 0;
913 atomic_set(&channel->irq_pending, 0);
914 spin_lock_init(&channel->iob_lock);
916 init_waitqueue_head(&channel->wait_q);
920 static int qeth_set_thread_start_bit(struct qeth_card *card,
921 unsigned long thread)
925 spin_lock_irqsave(&card->thread_mask_lock, flags);
926 if (!(card->thread_allowed_mask & thread) ||
927 (card->thread_start_mask & thread)) {
928 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
931 card->thread_start_mask |= thread;
932 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
936 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
940 spin_lock_irqsave(&card->thread_mask_lock, flags);
941 card->thread_start_mask &= ~thread;
942 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
943 wake_up(&card->wait_q);
945 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
947 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
951 spin_lock_irqsave(&card->thread_mask_lock, flags);
952 card->thread_running_mask &= ~thread;
953 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
954 wake_up(&card->wait_q);
956 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
958 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
963 spin_lock_irqsave(&card->thread_mask_lock, flags);
964 if (card->thread_start_mask & thread) {
965 if ((card->thread_allowed_mask & thread) &&
966 !(card->thread_running_mask & thread)) {
968 card->thread_start_mask &= ~thread;
969 card->thread_running_mask |= thread;
973 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
977 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
981 wait_event(card->wait_q,
982 (rc = __qeth_do_run_thread(card, thread)) >= 0);
985 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
987 void qeth_schedule_recovery(struct qeth_card *card)
989 QETH_CARD_TEXT(card, 2, "startrec");
990 if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
991 schedule_work(&card->kernel_thread_starter);
993 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
995 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
999 struct qeth_card *card;
1001 sense = (char *) irb->ecw;
1002 cstat = irb->scsw.cmd.cstat;
1003 dstat = irb->scsw.cmd.dstat;
1004 card = CARD_FROM_CDEV(cdev);
1006 if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
1007 SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
1008 SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
1009 QETH_CARD_TEXT(card, 2, "CGENCHK");
1010 dev_warn(&cdev->dev, "The qeth device driver "
1011 "failed to recover an error on the device\n");
1012 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
1013 dev_name(&cdev->dev), dstat, cstat);
1014 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
1019 if (dstat & DEV_STAT_UNIT_CHECK) {
1020 if (sense[SENSE_RESETTING_EVENT_BYTE] &
1021 SENSE_RESETTING_EVENT_FLAG) {
1022 QETH_CARD_TEXT(card, 2, "REVIND");
1025 if (sense[SENSE_COMMAND_REJECT_BYTE] &
1026 SENSE_COMMAND_REJECT_FLAG) {
1027 QETH_CARD_TEXT(card, 2, "CMDREJi");
1030 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
1031 QETH_CARD_TEXT(card, 2, "AFFE");
1034 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
1035 QETH_CARD_TEXT(card, 2, "ZEROSEN");
1038 QETH_CARD_TEXT(card, 2, "DGENCHK");
1044 static long __qeth_check_irb_error(struct ccw_device *cdev,
1045 unsigned long intparm, struct irb *irb)
1047 struct qeth_card *card;
1049 card = CARD_FROM_CDEV(cdev);
1051 if (!card || !IS_ERR(irb))
1054 switch (PTR_ERR(irb)) {
1056 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
1057 dev_name(&cdev->dev));
1058 QETH_CARD_TEXT(card, 2, "ckirberr");
1059 QETH_CARD_TEXT_(card, 2, " rc%d", -EIO);
1062 dev_warn(&cdev->dev, "A hardware operation timed out"
1063 " on the device\n");
1064 QETH_CARD_TEXT(card, 2, "ckirberr");
1065 QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT);
1066 if (intparm == QETH_RCD_PARM) {
1067 if (card->data.ccwdev == cdev) {
1068 card->data.state = CH_STATE_DOWN;
1069 wake_up(&card->wait_q);
1074 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
1075 dev_name(&cdev->dev), PTR_ERR(irb));
1076 QETH_CARD_TEXT(card, 2, "ckirberr");
1077 QETH_CARD_TEXT(card, 2, " rc???");
1079 return PTR_ERR(irb);
1082 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
1087 struct qeth_cmd_buffer *buffer;
1088 struct qeth_channel *channel;
1089 struct qeth_card *card;
1090 struct qeth_cmd_buffer *iob;
1093 if (__qeth_check_irb_error(cdev, intparm, irb))
1095 cstat = irb->scsw.cmd.cstat;
1096 dstat = irb->scsw.cmd.dstat;
1098 card = CARD_FROM_CDEV(cdev);
1102 QETH_CARD_TEXT(card, 5, "irq");
1104 if (card->read.ccwdev == cdev) {
1105 channel = &card->read;
1106 QETH_CARD_TEXT(card, 5, "read");
1107 } else if (card->write.ccwdev == cdev) {
1108 channel = &card->write;
1109 QETH_CARD_TEXT(card, 5, "write");
1111 channel = &card->data;
1112 QETH_CARD_TEXT(card, 5, "data");
1114 atomic_set(&channel->irq_pending, 0);
1116 if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
1117 channel->state = CH_STATE_STOPPED;
1119 if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
1120 channel->state = CH_STATE_HALTED;
1122 /*let's wake up immediately on data channel*/
1123 if ((channel == &card->data) && (intparm != 0) &&
1124 (intparm != QETH_RCD_PARM))
1127 if (intparm == QETH_CLEAR_CHANNEL_PARM) {
1128 QETH_CARD_TEXT(card, 6, "clrchpar");
1129 /* we don't have to handle this further */
1132 if (intparm == QETH_HALT_CHANNEL_PARM) {
1133 QETH_CARD_TEXT(card, 6, "hltchpar");
1134 /* we don't have to handle this further */
1137 if ((dstat & DEV_STAT_UNIT_EXCEP) ||
1138 (dstat & DEV_STAT_UNIT_CHECK) ||
1140 if (irb->esw.esw0.erw.cons) {
1141 dev_warn(&channel->ccwdev->dev,
1142 "The qeth device driver failed to recover "
1143 "an error on the device\n");
1144 QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1145 "0x%X dstat 0x%X\n",
1146 dev_name(&channel->ccwdev->dev), cstat, dstat);
1147 print_hex_dump(KERN_WARNING, "qeth: irb ",
1148 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
1149 print_hex_dump(KERN_WARNING, "qeth: sense data ",
1150 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
1152 if (intparm == QETH_RCD_PARM) {
1153 channel->state = CH_STATE_DOWN;
1156 rc = qeth_get_problem(cdev, irb);
1158 qeth_clear_ipacmd_list(card);
1159 qeth_schedule_recovery(card);
1164 if (intparm == QETH_RCD_PARM) {
1165 channel->state = CH_STATE_RCD_DONE;
1169 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
1170 buffer->state = BUF_STATE_PROCESSED;
1172 if (channel == &card->data)
1174 if (channel == &card->read &&
1175 channel->state == CH_STATE_UP)
1176 qeth_issue_next_read(card);
1179 index = channel->buf_no;
1180 while (iob[index].state == BUF_STATE_PROCESSED) {
1181 if (iob[index].callback != NULL)
1182 iob[index].callback(channel, iob + index);
1184 index = (index + 1) % QETH_CMD_BUFFER_NO;
1186 channel->buf_no = index;
1188 wake_up(&card->wait_q);
1192 static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
1193 struct qeth_qdio_out_buffer *buf,
1194 enum iucv_tx_notify notification)
1196 struct sk_buff *skb;
1198 if (skb_queue_empty(&buf->skb_list))
1200 skb = skb_peek(&buf->skb_list);
1202 QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
1203 QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
1204 if (be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) {
1206 struct iucv_sock *iucv = iucv_sk(skb->sk);
1207 iucv->sk_txnotify(skb, notification);
1210 if (skb_queue_is_last(&buf->skb_list, skb))
1213 skb = skb_queue_next(&buf->skb_list, skb);
1219 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
1221 struct sk_buff *skb;
1222 struct iucv_sock *iucv;
1223 int notify_general_error = 0;
1225 if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
1226 notify_general_error = 1;
1228 /* release may never happen from within CQ tasklet scope */
1229 WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
1231 skb = skb_dequeue(&buf->skb_list);
1233 QETH_CARD_TEXT(buf->q->card, 5, "skbr");
1234 QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb);
1235 if (notify_general_error &&
1236 be16_to_cpu(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.performance_stats = 0;
1400 card->options.rx_sg_cb = QETH_RX_SG_CB;
1401 card->options.isolation = ISOLATION_MODE_NONE;
1402 card->options.cq = QETH_CQ_DISABLED;
1405 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1407 unsigned long flags;
1410 spin_lock_irqsave(&card->thread_mask_lock, flags);
1411 QETH_CARD_TEXT_(card, 4, " %02x%02x%02x",
1412 (u8) card->thread_start_mask,
1413 (u8) card->thread_allowed_mask,
1414 (u8) card->thread_running_mask);
1415 rc = (card->thread_start_mask & thread);
1416 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1420 static void qeth_start_kernel_thread(struct work_struct *work)
1422 struct task_struct *ts;
1423 struct qeth_card *card = container_of(work, struct qeth_card,
1424 kernel_thread_starter);
1425 QETH_CARD_TEXT(card , 2, "strthrd");
1427 if (card->read.state != CH_STATE_UP &&
1428 card->write.state != CH_STATE_UP)
1430 if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
1431 ts = kthread_run(card->discipline->recover, (void *)card,
1434 qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1435 qeth_clear_thread_running_bit(card,
1436 QETH_RECOVER_THREAD);
1441 static void qeth_buffer_reclaim_work(struct work_struct *);
1442 static int qeth_setup_card(struct qeth_card *card)
1445 QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1446 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1448 card->read.state = CH_STATE_DOWN;
1449 card->write.state = CH_STATE_DOWN;
1450 card->data.state = CH_STATE_DOWN;
1451 card->state = CARD_STATE_DOWN;
1452 card->lan_online = 0;
1453 card->read_or_write_problem = 0;
1455 spin_lock_init(&card->vlanlock);
1456 spin_lock_init(&card->mclock);
1457 spin_lock_init(&card->lock);
1458 spin_lock_init(&card->ip_lock);
1459 spin_lock_init(&card->thread_mask_lock);
1460 mutex_init(&card->conf_mutex);
1461 mutex_init(&card->discipline_mutex);
1462 card->thread_start_mask = 0;
1463 card->thread_allowed_mask = 0;
1464 card->thread_running_mask = 0;
1465 INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1466 INIT_LIST_HEAD(&card->cmd_waiter_list);
1467 init_waitqueue_head(&card->wait_q);
1468 /* initial options */
1469 qeth_set_intial_options(card);
1470 /* IP address takeover */
1471 INIT_LIST_HEAD(&card->ipato.entries);
1472 card->ipato.enabled = 0;
1473 card->ipato.invert4 = 0;
1474 card->ipato.invert6 = 0;
1475 /* init QDIO stuff */
1476 qeth_init_qdio_info(card);
1477 INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
1478 INIT_WORK(&card->close_dev_work, qeth_close_dev_handler);
1482 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1484 struct qeth_card *card = container_of(slr, struct qeth_card,
1485 qeth_service_level);
1486 if (card->info.mcl_level[0])
1487 seq_printf(m, "qeth: %s firmware level %s\n",
1488 CARD_BUS_ID(card), card->info.mcl_level);
1491 static struct qeth_card *qeth_alloc_card(void)
1493 struct qeth_card *card;
1495 QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1496 card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1499 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1500 if (qeth_setup_channel(&card->read))
1502 if (qeth_setup_channel(&card->write))
1504 card->options.layer2 = -1;
1505 card->qeth_service_level.seq_print = qeth_core_sl_print;
1506 register_service_level(&card->qeth_service_level);
1510 qeth_clean_channel(&card->read);
1517 static int qeth_determine_card_type(struct qeth_card *card)
1521 QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1523 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1524 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1525 while (known_devices[i][QETH_DEV_MODEL_IND]) {
1526 if ((CARD_RDEV(card)->id.dev_type ==
1527 known_devices[i][QETH_DEV_TYPE_IND]) &&
1528 (CARD_RDEV(card)->id.dev_model ==
1529 known_devices[i][QETH_DEV_MODEL_IND])) {
1530 card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
1531 card->qdio.no_out_queues =
1532 known_devices[i][QETH_QUEUE_NO_IND];
1533 card->qdio.no_in_queues = 1;
1534 card->info.is_multicast_different =
1535 known_devices[i][QETH_MULTICAST_IND];
1536 qeth_update_from_chp_desc(card);
1541 card->info.type = QETH_CARD_TYPE_UNKNOWN;
1542 dev_err(&card->gdev->dev, "The adapter hardware is of an "
1547 static int qeth_clear_channel(struct qeth_channel *channel)
1549 unsigned long flags;
1550 struct qeth_card *card;
1553 card = CARD_FROM_CDEV(channel->ccwdev);
1554 QETH_CARD_TEXT(card, 3, "clearch");
1555 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1556 rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1557 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1561 rc = wait_event_interruptible_timeout(card->wait_q,
1562 channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1563 if (rc == -ERESTARTSYS)
1565 if (channel->state != CH_STATE_STOPPED)
1567 channel->state = CH_STATE_DOWN;
1571 static int qeth_halt_channel(struct qeth_channel *channel)
1573 unsigned long flags;
1574 struct qeth_card *card;
1577 card = CARD_FROM_CDEV(channel->ccwdev);
1578 QETH_CARD_TEXT(card, 3, "haltch");
1579 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1580 rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1581 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1585 rc = wait_event_interruptible_timeout(card->wait_q,
1586 channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1587 if (rc == -ERESTARTSYS)
1589 if (channel->state != CH_STATE_HALTED)
1594 static int qeth_halt_channels(struct qeth_card *card)
1596 int rc1 = 0, rc2 = 0, rc3 = 0;
1598 QETH_CARD_TEXT(card, 3, "haltchs");
1599 rc1 = qeth_halt_channel(&card->read);
1600 rc2 = qeth_halt_channel(&card->write);
1601 rc3 = qeth_halt_channel(&card->data);
1609 static int qeth_clear_channels(struct qeth_card *card)
1611 int rc1 = 0, rc2 = 0, rc3 = 0;
1613 QETH_CARD_TEXT(card, 3, "clearchs");
1614 rc1 = qeth_clear_channel(&card->read);
1615 rc2 = qeth_clear_channel(&card->write);
1616 rc3 = qeth_clear_channel(&card->data);
1624 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1628 QETH_CARD_TEXT(card, 3, "clhacrd");
1631 rc = qeth_halt_channels(card);
1634 return qeth_clear_channels(card);
1637 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1641 QETH_CARD_TEXT(card, 3, "qdioclr");
1642 switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1643 QETH_QDIO_CLEANING)) {
1644 case QETH_QDIO_ESTABLISHED:
1645 if (card->info.type == QETH_CARD_TYPE_IQD)
1646 rc = qdio_shutdown(CARD_DDEV(card),
1647 QDIO_FLAG_CLEANUP_USING_HALT);
1649 rc = qdio_shutdown(CARD_DDEV(card),
1650 QDIO_FLAG_CLEANUP_USING_CLEAR);
1652 QETH_CARD_TEXT_(card, 3, "1err%d", rc);
1653 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1655 case QETH_QDIO_CLEANING:
1660 rc = qeth_clear_halt_card(card, use_halt);
1662 QETH_CARD_TEXT_(card, 3, "2err%d", rc);
1663 card->state = CARD_STATE_DOWN;
1666 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1668 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1674 struct qeth_channel *channel = &card->data;
1675 unsigned long flags;
1678 * scan for RCD command in extended SenseID data
1680 ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1681 if (!ciw || ciw->cmd == 0)
1683 rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1687 channel->ccw.cmd_code = ciw->cmd;
1688 channel->ccw.cda = (__u32) __pa(rcd_buf);
1689 channel->ccw.count = ciw->count;
1690 channel->ccw.flags = CCW_FLAG_SLI;
1691 channel->state = CH_STATE_RCD;
1692 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1693 ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1694 QETH_RCD_PARM, LPM_ANYPATH, 0,
1696 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1698 wait_event(card->wait_q,
1699 (channel->state == CH_STATE_RCD_DONE ||
1700 channel->state == CH_STATE_DOWN));
1701 if (channel->state == CH_STATE_DOWN)
1704 channel->state = CH_STATE_DOWN;
1710 *length = ciw->count;
1716 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1718 QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1719 card->info.chpid = prcd[30];
1720 card->info.unit_addr2 = prcd[31];
1721 card->info.cula = prcd[63];
1722 card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1723 (prcd[0x11] == _ascebc['M']));
1726 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1728 QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1730 if (prcd[74] == 0xF0 && prcd[75] == 0xF0 &&
1731 prcd[76] >= 0xF1 && prcd[76] <= 0xF4) {
1732 card->info.blkt.time_total = 0;
1733 card->info.blkt.inter_packet = 0;
1734 card->info.blkt.inter_packet_jumbo = 0;
1736 card->info.blkt.time_total = 250;
1737 card->info.blkt.inter_packet = 5;
1738 card->info.blkt.inter_packet_jumbo = 15;
1742 static void qeth_init_tokens(struct qeth_card *card)
1744 card->token.issuer_rm_w = 0x00010103UL;
1745 card->token.cm_filter_w = 0x00010108UL;
1746 card->token.cm_connection_w = 0x0001010aUL;
1747 card->token.ulp_filter_w = 0x0001010bUL;
1748 card->token.ulp_connection_w = 0x0001010dUL;
1751 static void qeth_init_func_level(struct qeth_card *card)
1753 switch (card->info.type) {
1754 case QETH_CARD_TYPE_IQD:
1755 card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
1757 case QETH_CARD_TYPE_OSD:
1758 case QETH_CARD_TYPE_OSN:
1759 card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
1766 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1767 void (*idx_reply_cb)(struct qeth_channel *,
1768 struct qeth_cmd_buffer *))
1770 struct qeth_cmd_buffer *iob;
1771 unsigned long flags;
1773 struct qeth_card *card;
1775 QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1776 card = CARD_FROM_CDEV(channel->ccwdev);
1777 iob = qeth_get_buffer(channel);
1780 iob->callback = idx_reply_cb;
1781 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1782 channel->ccw.count = QETH_BUFSIZE;
1783 channel->ccw.cda = (__u32) __pa(iob->data);
1785 wait_event(card->wait_q,
1786 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1787 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1788 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1789 rc = ccw_device_start(channel->ccwdev,
1790 &channel->ccw, (addr_t) iob, 0, 0);
1791 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1794 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1795 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1796 atomic_set(&channel->irq_pending, 0);
1797 wake_up(&card->wait_q);
1800 rc = wait_event_interruptible_timeout(card->wait_q,
1801 channel->state == CH_STATE_UP, QETH_TIMEOUT);
1802 if (rc == -ERESTARTSYS)
1804 if (channel->state != CH_STATE_UP) {
1806 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1807 qeth_clear_cmd_buffers(channel);
1813 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1814 void (*idx_reply_cb)(struct qeth_channel *,
1815 struct qeth_cmd_buffer *))
1817 struct qeth_card *card;
1818 struct qeth_cmd_buffer *iob;
1819 unsigned long flags;
1823 struct ccw_dev_id temp_devid;
1825 card = CARD_FROM_CDEV(channel->ccwdev);
1827 QETH_DBF_TEXT(SETUP, 2, "idxactch");
1829 iob = qeth_get_buffer(channel);
1832 iob->callback = idx_reply_cb;
1833 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1834 channel->ccw.count = IDX_ACTIVATE_SIZE;
1835 channel->ccw.cda = (__u32) __pa(iob->data);
1836 if (channel == &card->write) {
1837 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1838 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1839 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1840 card->seqno.trans_hdr++;
1842 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1843 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1844 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1846 tmp = ((__u8)card->info.portno) | 0x80;
1847 memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1848 memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1849 &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1850 memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1851 &card->info.func_level, sizeof(__u16));
1852 ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1853 memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1854 temp = (card->info.cula << 8) + card->info.unit_addr2;
1855 memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1857 wait_event(card->wait_q,
1858 atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1859 QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1860 spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1861 rc = ccw_device_start(channel->ccwdev,
1862 &channel->ccw, (addr_t) iob, 0, 0);
1863 spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1866 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1868 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1869 atomic_set(&channel->irq_pending, 0);
1870 wake_up(&card->wait_q);
1873 rc = wait_event_interruptible_timeout(card->wait_q,
1874 channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1875 if (rc == -ERESTARTSYS)
1877 if (channel->state != CH_STATE_ACTIVATING) {
1878 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1879 " failed to recover an error on the device\n");
1880 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1881 dev_name(&channel->ccwdev->dev));
1882 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1883 qeth_clear_cmd_buffers(channel);
1886 return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1889 static int qeth_peer_func_level(int level)
1891 if ((level & 0xff) == 8)
1892 return (level & 0xff) + 0x400;
1893 if (((level >> 8) & 3) == 1)
1894 return (level & 0xff) + 0x200;
1898 static void qeth_idx_write_cb(struct qeth_channel *channel,
1899 struct qeth_cmd_buffer *iob)
1901 struct qeth_card *card;
1904 QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1906 if (channel->state == CH_STATE_DOWN) {
1907 channel->state = CH_STATE_ACTIVATING;
1910 card = CARD_FROM_CDEV(channel->ccwdev);
1912 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1913 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
1914 dev_err(&card->write.ccwdev->dev,
1915 "The adapter is used exclusively by another "
1918 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1919 " negative reply\n",
1920 dev_name(&card->write.ccwdev->dev));
1923 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1924 if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1925 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1926 "function level mismatch (sent: 0x%x, received: "
1927 "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1928 card->info.func_level, temp);
1931 channel->state = CH_STATE_UP;
1933 qeth_release_buffer(channel, iob);
1936 static void qeth_idx_read_cb(struct qeth_channel *channel,
1937 struct qeth_cmd_buffer *iob)
1939 struct qeth_card *card;
1942 QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1943 if (channel->state == CH_STATE_DOWN) {
1944 channel->state = CH_STATE_ACTIVATING;
1948 card = CARD_FROM_CDEV(channel->ccwdev);
1949 if (qeth_check_idx_response(card, iob->data))
1952 if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1953 switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
1954 case QETH_IDX_ACT_ERR_EXCL:
1955 dev_err(&card->write.ccwdev->dev,
1956 "The adapter is used exclusively by another "
1959 case QETH_IDX_ACT_ERR_AUTH:
1960 case QETH_IDX_ACT_ERR_AUTH_USER:
1961 dev_err(&card->read.ccwdev->dev,
1962 "Setting the device online failed because of "
1963 "insufficient authorization\n");
1966 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1967 " negative reply\n",
1968 dev_name(&card->read.ccwdev->dev));
1970 QETH_CARD_TEXT_(card, 2, "idxread%c",
1971 QETH_IDX_ACT_CAUSE_CODE(iob->data));
1975 memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1976 if (temp != qeth_peer_func_level(card->info.func_level)) {
1977 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1978 "level mismatch (sent: 0x%x, received: 0x%x)\n",
1979 dev_name(&card->read.ccwdev->dev),
1980 card->info.func_level, temp);
1983 memcpy(&card->token.issuer_rm_r,
1984 QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1985 QETH_MPC_TOKEN_LENGTH);
1986 memcpy(&card->info.mcl_level[0],
1987 QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1988 channel->state = CH_STATE_UP;
1990 qeth_release_buffer(channel, iob);
1993 void qeth_prepare_control_data(struct qeth_card *card, int len,
1994 struct qeth_cmd_buffer *iob)
1996 qeth_setup_ccw(&card->write, iob->data, len);
1997 iob->callback = qeth_release_buffer;
1999 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
2000 &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
2001 card->seqno.trans_hdr++;
2002 memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
2003 &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
2004 card->seqno.pdu_hdr++;
2005 memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
2006 &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
2007 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
2009 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
2012 * qeth_send_control_data() - send control command to the card
2013 * @card: qeth_card structure pointer
2014 * @len: size of the command buffer
2015 * @iob: qeth_cmd_buffer pointer
2016 * @reply_cb: callback function pointer
2017 * @cb_card: pointer to the qeth_card structure
2018 * @cb_reply: pointer to the qeth_reply structure
2019 * @cb_cmd: pointer to the original iob for non-IPA
2020 * commands, or to the qeth_ipa_cmd structure
2021 * for the IPA commands.
2022 * @reply_param: private pointer passed to the callback
2024 * Returns the value of the `return_code' field of the response
2025 * block returned from the hardware, or other error indication.
2026 * Value of zero indicates successful execution of the command.
2028 * Callback function gets called one or more times, with cb_cmd
2029 * pointing to the response returned by the hardware. Callback
2030 * function must return non-zero if more reply blocks are expected,
2031 * and zero if the last or only reply block is received. Callback
2032 * function can get the value of the reply_param pointer from the
2033 * field 'param' of the structure qeth_reply.
2036 int qeth_send_control_data(struct qeth_card *card, int len,
2037 struct qeth_cmd_buffer *iob,
2038 int (*reply_cb)(struct qeth_card *cb_card,
2039 struct qeth_reply *cb_reply,
2040 unsigned long cb_cmd),
2044 unsigned long flags;
2045 struct qeth_reply *reply = NULL;
2046 unsigned long timeout, event_timeout;
2047 struct qeth_ipa_cmd *cmd;
2049 QETH_CARD_TEXT(card, 2, "sendctl");
2051 if (card->read_or_write_problem) {
2052 qeth_release_buffer(iob->channel, iob);
2055 reply = qeth_alloc_reply(card);
2059 reply->callback = reply_cb;
2060 reply->param = reply_param;
2061 if (card->state == CARD_STATE_DOWN)
2062 reply->seqno = QETH_IDX_COMMAND_SEQNO;
2064 reply->seqno = card->seqno.ipa++;
2065 init_waitqueue_head(&reply->wait_q);
2066 spin_lock_irqsave(&card->lock, flags);
2067 list_add_tail(&reply->list, &card->cmd_waiter_list);
2068 spin_unlock_irqrestore(&card->lock, flags);
2069 QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
2071 while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
2072 qeth_prepare_control_data(card, len, iob);
2074 if (IS_IPA(iob->data))
2075 event_timeout = QETH_IPA_TIMEOUT;
2077 event_timeout = QETH_TIMEOUT;
2078 timeout = jiffies + event_timeout;
2080 QETH_CARD_TEXT(card, 6, "noirqpnd");
2081 spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
2082 rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
2083 (addr_t) iob, 0, 0);
2084 spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
2086 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2087 "ccw_device_start rc = %i\n",
2088 dev_name(&card->write.ccwdev->dev), rc);
2089 QETH_CARD_TEXT_(card, 2, " err%d", rc);
2090 spin_lock_irqsave(&card->lock, flags);
2091 list_del_init(&reply->list);
2092 qeth_put_reply(reply);
2093 spin_unlock_irqrestore(&card->lock, flags);
2094 qeth_release_buffer(iob->channel, iob);
2095 atomic_set(&card->write.irq_pending, 0);
2096 wake_up(&card->wait_q);
2100 /* we have only one long running ipassist, since we can ensure
2101 process context of this command we can sleep */
2102 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2103 if ((cmd->hdr.command == IPA_CMD_SETIP) &&
2104 (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
2105 if (!wait_event_timeout(reply->wait_q,
2106 atomic_read(&reply->received), event_timeout))
2109 while (!atomic_read(&reply->received)) {
2110 if (time_after(jiffies, timeout))
2116 if (reply->rc == -EIO)
2119 qeth_put_reply(reply);
2124 spin_lock_irqsave(&reply->card->lock, flags);
2125 list_del_init(&reply->list);
2126 spin_unlock_irqrestore(&reply->card->lock, flags);
2127 atomic_inc(&reply->received);
2129 atomic_set(&card->write.irq_pending, 0);
2130 qeth_release_buffer(iob->channel, iob);
2131 card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
2133 qeth_put_reply(reply);
2136 EXPORT_SYMBOL_GPL(qeth_send_control_data);
2138 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2141 struct qeth_cmd_buffer *iob;
2143 QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
2145 iob = (struct qeth_cmd_buffer *) data;
2146 memcpy(&card->token.cm_filter_r,
2147 QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2148 QETH_MPC_TOKEN_LENGTH);
2149 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2153 static int qeth_cm_enable(struct qeth_card *card)
2156 struct qeth_cmd_buffer *iob;
2158 QETH_DBF_TEXT(SETUP, 2, "cmenable");
2160 iob = qeth_wait_for_buffer(&card->write);
2161 memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2162 memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2163 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2164 memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2165 &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2167 rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2168 qeth_cm_enable_cb, NULL);
2172 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2176 struct qeth_cmd_buffer *iob;
2178 QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
2180 iob = (struct qeth_cmd_buffer *) data;
2181 memcpy(&card->token.cm_connection_r,
2182 QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2183 QETH_MPC_TOKEN_LENGTH);
2184 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2188 static int qeth_cm_setup(struct qeth_card *card)
2191 struct qeth_cmd_buffer *iob;
2193 QETH_DBF_TEXT(SETUP, 2, "cmsetup");
2195 iob = qeth_wait_for_buffer(&card->write);
2196 memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2197 memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2198 &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2199 memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2200 &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2201 memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2202 &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2203 rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2204 qeth_cm_setup_cb, NULL);
2209 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
2211 switch (card->info.type) {
2212 case QETH_CARD_TYPE_UNKNOWN:
2214 case QETH_CARD_TYPE_IQD:
2215 return card->info.max_mtu;
2216 case QETH_CARD_TYPE_OSD:
2217 switch (card->info.link_type) {
2218 case QETH_LINK_TYPE_HSTR:
2219 case QETH_LINK_TYPE_LANE_TR:
2222 return card->options.layer2 ? 1500 : 1492;
2224 case QETH_CARD_TYPE_OSM:
2225 case QETH_CARD_TYPE_OSX:
2226 return card->options.layer2 ? 1500 : 1492;
2232 static inline int qeth_get_mtu_outof_framesize(int framesize)
2234 switch (framesize) {
2248 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
2250 switch (card->info.type) {
2251 case QETH_CARD_TYPE_OSD:
2252 case QETH_CARD_TYPE_OSM:
2253 case QETH_CARD_TYPE_OSX:
2254 case QETH_CARD_TYPE_IQD:
2255 return ((mtu >= 576) &&
2256 (mtu <= card->info.max_mtu));
2257 case QETH_CARD_TYPE_OSN:
2258 case QETH_CARD_TYPE_UNKNOWN:
2264 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2268 __u16 mtu, framesize;
2271 struct qeth_cmd_buffer *iob;
2273 QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
2275 iob = (struct qeth_cmd_buffer *) data;
2276 memcpy(&card->token.ulp_filter_r,
2277 QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2278 QETH_MPC_TOKEN_LENGTH);
2279 if (card->info.type == QETH_CARD_TYPE_IQD) {
2280 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2281 mtu = qeth_get_mtu_outof_framesize(framesize);
2284 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2287 if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
2288 /* frame size has changed */
2290 ((card->dev->mtu == card->info.initial_mtu) ||
2291 (card->dev->mtu > mtu)))
2292 card->dev->mtu = mtu;
2293 qeth_free_qdio_buffers(card);
2295 card->info.initial_mtu = mtu;
2296 card->info.max_mtu = mtu;
2297 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2299 card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
2301 card->info.initial_mtu = min(card->info.max_mtu,
2302 qeth_get_initial_mtu_for_card(card));
2303 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2306 memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2307 if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2309 QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2310 card->info.link_type = link_type;
2312 card->info.link_type = 0;
2313 QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
2314 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2318 static int qeth_ulp_enable(struct qeth_card *card)
2322 struct qeth_cmd_buffer *iob;
2324 /*FIXME: trace view callbacks*/
2325 QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
2327 iob = qeth_wait_for_buffer(&card->write);
2328 memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2330 *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2331 (__u8) card->info.portno;
2332 if (card->options.layer2)
2333 if (card->info.type == QETH_CARD_TYPE_OSN)
2334 prot_type = QETH_PROT_OSN2;
2336 prot_type = QETH_PROT_LAYER2;
2338 prot_type = QETH_PROT_TCPIP;
2340 memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
2341 memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2342 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2343 memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2344 &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2345 rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2346 qeth_ulp_enable_cb, NULL);
2351 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2354 struct qeth_cmd_buffer *iob;
2356 QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
2358 iob = (struct qeth_cmd_buffer *) data;
2359 memcpy(&card->token.ulp_connection_r,
2360 QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2361 QETH_MPC_TOKEN_LENGTH);
2362 if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2364 QETH_DBF_TEXT(SETUP, 2, "olmlimit");
2365 dev_err(&card->gdev->dev, "A connection could not be "
2366 "established because of an OLM limit\n");
2369 QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
2373 static int qeth_ulp_setup(struct qeth_card *card)
2377 struct qeth_cmd_buffer *iob;
2378 struct ccw_dev_id dev_id;
2380 QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2382 iob = qeth_wait_for_buffer(&card->write);
2383 memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2385 memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2386 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2387 memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2388 &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2389 memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2390 &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2392 ccw_device_get_id(CARD_DDEV(card), &dev_id);
2393 memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2394 temp = (card->info.cula << 8) + card->info.unit_addr2;
2395 memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2396 rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2397 qeth_ulp_setup_cb, NULL);
2401 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx)
2404 struct qeth_qdio_out_buffer *newbuf;
2407 newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC);
2412 newbuf->buffer = q->qdio_bufs[bidx];
2413 skb_queue_head_init(&newbuf->skb_list);
2414 lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key);
2417 newbuf->next_pending = q->bufs[bidx];
2418 atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY);
2419 q->bufs[bidx] = newbuf;
2421 q->bufstates[bidx].user = newbuf;
2422 QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx);
2423 QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf);
2424 QETH_CARD_TEXT_(q->card, 2, "%lx",
2425 (long) newbuf->next_pending);
2431 static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q *q)
2436 qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
2440 static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void)
2442 struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL);
2447 if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) {
2454 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2458 QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2460 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2461 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2464 QETH_DBF_TEXT(SETUP, 2, "inq");
2465 card->qdio.in_q = qeth_alloc_qdio_queue();
2466 if (!card->qdio.in_q)
2469 /* inbound buffer pool */
2470 if (qeth_alloc_buffer_pool(card))
2475 kzalloc(card->qdio.no_out_queues *
2476 sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2477 if (!card->qdio.out_qs)
2479 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2480 card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf();
2481 if (!card->qdio.out_qs[i])
2483 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2484 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2485 card->qdio.out_qs[i]->queue_no = i;
2486 /* give outbound qeth_qdio_buffers their qdio_buffers */
2487 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2488 WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
2489 if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
2490 goto out_freeoutqbufs;
2495 if (qeth_alloc_cq(card))
2503 kmem_cache_free(qeth_qdio_outbuf_cache,
2504 card->qdio.out_qs[i]->bufs[j]);
2505 card->qdio.out_qs[i]->bufs[j] = NULL;
2509 qeth_free_qdio_out_buf(card->qdio.out_qs[--i]);
2510 qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
2512 kfree(card->qdio.out_qs);
2513 card->qdio.out_qs = NULL;
2515 qeth_free_buffer_pool(card);
2517 qeth_free_qdio_queue(card->qdio.in_q);
2518 card->qdio.in_q = NULL;
2520 atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2524 static void qeth_free_qdio_buffers(struct qeth_card *card)
2528 if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
2529 QETH_QDIO_UNINITIALIZED)
2533 cancel_delayed_work_sync(&card->buffer_reclaim_work);
2534 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2535 if (card->qdio.in_q->bufs[j].rx_skb)
2536 dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
2538 qeth_free_qdio_queue(card->qdio.in_q);
2539 card->qdio.in_q = NULL;
2540 /* inbound buffer pool */
2541 qeth_free_buffer_pool(card);
2542 /* free outbound qdio_qs */
2543 if (card->qdio.out_qs) {
2544 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2545 qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
2546 qeth_free_qdio_out_buf(card->qdio.out_qs[i]);
2548 kfree(card->qdio.out_qs);
2549 card->qdio.out_qs = NULL;
2553 static void qeth_create_qib_param_field(struct qeth_card *card,
2557 param_field[0] = _ascebc['P'];
2558 param_field[1] = _ascebc['C'];
2559 param_field[2] = _ascebc['I'];
2560 param_field[3] = _ascebc['T'];
2561 *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card);
2562 *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card);
2563 *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card);
2566 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2569 param_field[16] = _ascebc['B'];
2570 param_field[17] = _ascebc['L'];
2571 param_field[18] = _ascebc['K'];
2572 param_field[19] = _ascebc['T'];
2573 *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total;
2574 *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet;
2575 *((unsigned int *) (¶m_field[28])) =
2576 card->info.blkt.inter_packet_jumbo;
2579 static int qeth_qdio_activate(struct qeth_card *card)
2581 QETH_DBF_TEXT(SETUP, 3, "qdioact");
2582 return qdio_activate(CARD_DDEV(card));
2585 static int qeth_dm_act(struct qeth_card *card)
2588 struct qeth_cmd_buffer *iob;
2590 QETH_DBF_TEXT(SETUP, 2, "dmact");
2592 iob = qeth_wait_for_buffer(&card->write);
2593 memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2595 memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2596 &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2597 memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2598 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2599 rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2603 static int qeth_mpc_initialize(struct qeth_card *card)
2607 QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2609 rc = qeth_issue_next_read(card);
2611 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2614 rc = qeth_cm_enable(card);
2616 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2619 rc = qeth_cm_setup(card);
2621 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2624 rc = qeth_ulp_enable(card);
2626 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2629 rc = qeth_ulp_setup(card);
2631 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2634 rc = qeth_alloc_qdio_buffers(card);
2636 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2639 rc = qeth_qdio_establish(card);
2641 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2642 qeth_free_qdio_buffers(card);
2645 rc = qeth_qdio_activate(card);
2647 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2650 rc = qeth_dm_act(card);
2652 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2658 qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2659 qdio_free(CARD_DDEV(card));
2663 void qeth_print_status_message(struct qeth_card *card)
2665 switch (card->info.type) {
2666 case QETH_CARD_TYPE_OSD:
2667 case QETH_CARD_TYPE_OSM:
2668 case QETH_CARD_TYPE_OSX:
2669 /* VM will use a non-zero first character
2670 * to indicate a HiperSockets like reporting
2671 * of the level OSA sets the first character to zero
2673 if (!card->info.mcl_level[0]) {
2674 sprintf(card->info.mcl_level, "%02x%02x",
2675 card->info.mcl_level[2],
2676 card->info.mcl_level[3]);
2680 case QETH_CARD_TYPE_IQD:
2681 if ((card->info.guestlan) ||
2682 (card->info.mcl_level[0] & 0x80)) {
2683 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2684 card->info.mcl_level[0]];
2685 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2686 card->info.mcl_level[1]];
2687 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2688 card->info.mcl_level[2]];
2689 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2690 card->info.mcl_level[3]];
2691 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2695 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2697 dev_info(&card->gdev->dev,
2698 "Device is a%s card%s%s%s\nwith link type %s.\n",
2699 qeth_get_cardname(card),
2700 (card->info.mcl_level[0]) ? " (level: " : "",
2701 (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2702 (card->info.mcl_level[0]) ? ")" : "",
2703 qeth_get_cardname_short(card));
2705 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2707 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2709 struct qeth_buffer_pool_entry *entry;
2711 QETH_CARD_TEXT(card, 5, "inwrklst");
2713 list_for_each_entry(entry,
2714 &card->qdio.init_pool.entry_list, init_list) {
2715 qeth_put_buffer_pool_entry(card, entry);
2719 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2720 struct qeth_card *card)
2722 struct list_head *plh;
2723 struct qeth_buffer_pool_entry *entry;
2727 if (list_empty(&card->qdio.in_buf_pool.entry_list))
2730 list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2731 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2733 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2734 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2740 list_del_init(&entry->list);
2745 /* no free buffer in pool so take first one and swap pages */
2746 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2747 struct qeth_buffer_pool_entry, list);
2748 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2749 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2750 page = alloc_page(GFP_ATOMIC);
2754 free_page((unsigned long)entry->elements[i]);
2755 entry->elements[i] = page_address(page);
2756 if (card->options.performance_stats)
2757 card->perf_stats.sg_alloc_page_rx++;
2761 list_del_init(&entry->list);
2765 static int qeth_init_input_buffer(struct qeth_card *card,
2766 struct qeth_qdio_buffer *buf)
2768 struct qeth_buffer_pool_entry *pool_entry;
2771 if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) {
2772 buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
2777 pool_entry = qeth_find_free_buffer_pool_entry(card);
2782 * since the buffer is accessed only from the input_tasklet
2783 * there shouldn't be a need to synchronize; also, since we use
2784 * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off
2788 buf->pool_entry = pool_entry;
2789 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2790 buf->buffer->element[i].length = PAGE_SIZE;
2791 buf->buffer->element[i].addr = pool_entry->elements[i];
2792 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2793 buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY;
2795 buf->buffer->element[i].eflags = 0;
2796 buf->buffer->element[i].sflags = 0;
2801 int qeth_init_qdio_queues(struct qeth_card *card)
2806 QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2809 qdio_reset_buffers(card->qdio.in_q->qdio_bufs,
2810 QDIO_MAX_BUFFERS_PER_Q);
2811 qeth_initialize_working_pool_list(card);
2812 /*give only as many buffers to hardware as we have buffer pool entries*/
2813 for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2814 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2815 card->qdio.in_q->next_buf_to_init =
2816 card->qdio.in_buf_pool.buf_count - 1;
2817 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2818 card->qdio.in_buf_pool.buf_count - 1);
2820 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2825 rc = qeth_cq_init(card);
2830 /* outbound queue */
2831 for (i = 0; i < card->qdio.no_out_queues; ++i) {
2832 qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs,
2833 QDIO_MAX_BUFFERS_PER_Q);
2834 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2835 qeth_clear_output_buffer(card->qdio.out_qs[i],
2836 card->qdio.out_qs[i]->bufs[j],
2837 QETH_QDIO_BUF_EMPTY);
2839 card->qdio.out_qs[i]->card = card;
2840 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2841 card->qdio.out_qs[i]->do_pack = 0;
2842 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2843 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2844 atomic_set(&card->qdio.out_qs[i]->state,
2845 QETH_OUT_Q_UNLOCKED);
2849 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2851 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2853 switch (link_type) {
2854 case QETH_LINK_TYPE_HSTR:
2861 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2862 struct qeth_ipa_cmd *cmd, __u8 command,
2863 enum qeth_prot_versions prot)
2865 memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2866 cmd->hdr.command = command;
2867 cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2868 cmd->hdr.seqno = card->seqno.ipa;
2869 cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2870 cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2871 if (card->options.layer2)
2872 cmd->hdr.prim_version_no = 2;
2874 cmd->hdr.prim_version_no = 1;
2875 cmd->hdr.param_count = 1;
2876 cmd->hdr.prot_version = prot;
2877 cmd->hdr.ipa_supported = 0;
2878 cmd->hdr.ipa_enabled = 0;
2881 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2882 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2884 struct qeth_cmd_buffer *iob;
2885 struct qeth_ipa_cmd *cmd;
2887 iob = qeth_get_buffer(&card->write);
2889 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2890 qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2892 dev_warn(&card->gdev->dev,
2893 "The qeth driver ran out of channel command buffers\n");
2894 QETH_DBF_MESSAGE(1, "%s The qeth driver ran out of channel command buffers",
2895 dev_name(&card->gdev->dev));
2900 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2902 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2905 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2906 memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2907 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2908 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2910 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2913 * qeth_send_ipa_cmd() - send an IPA command
2915 * See qeth_send_control_data() for explanation of the arguments.
2918 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2919 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2926 QETH_CARD_TEXT(card, 4, "sendipa");
2928 if (card->options.layer2)
2929 if (card->info.type == QETH_CARD_TYPE_OSN)
2930 prot_type = QETH_PROT_OSN2;
2932 prot_type = QETH_PROT_LAYER2;
2934 prot_type = QETH_PROT_TCPIP;
2935 qeth_prepare_ipa_cmd(card, iob, prot_type);
2936 rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2937 iob, reply_cb, reply_param);
2939 qeth_clear_ipacmd_list(card);
2940 qeth_schedule_recovery(card);
2944 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2946 static int qeth_send_startlan(struct qeth_card *card)
2949 struct qeth_cmd_buffer *iob;
2951 QETH_DBF_TEXT(SETUP, 2, "strtlan");
2953 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
2956 rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2960 static int qeth_default_setadapterparms_cb(struct qeth_card *card,
2961 struct qeth_reply *reply, unsigned long data)
2963 struct qeth_ipa_cmd *cmd;
2965 QETH_CARD_TEXT(card, 4, "defadpcb");
2967 cmd = (struct qeth_ipa_cmd *) data;
2968 if (cmd->hdr.return_code == 0)
2969 cmd->hdr.return_code =
2970 cmd->data.setadapterparms.hdr.return_code;
2974 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2975 struct qeth_reply *reply, unsigned long data)
2977 struct qeth_ipa_cmd *cmd;
2979 QETH_CARD_TEXT(card, 3, "quyadpcb");
2981 cmd = (struct qeth_ipa_cmd *) data;
2982 if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
2983 card->info.link_type =
2984 cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2985 QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
2987 card->options.adp.supported_funcs =
2988 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2989 return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2992 static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2993 __u32 command, __u32 cmdlen)
2995 struct qeth_cmd_buffer *iob;
2996 struct qeth_ipa_cmd *cmd;
2998 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
3001 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3002 cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
3003 cmd->data.setadapterparms.hdr.command_code = command;
3004 cmd->data.setadapterparms.hdr.used_total = 1;
3005 cmd->data.setadapterparms.hdr.seq_no = 1;
3011 int qeth_query_setadapterparms(struct qeth_card *card)
3014 struct qeth_cmd_buffer *iob;
3016 QETH_CARD_TEXT(card, 3, "queryadp");
3017 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
3018 sizeof(struct qeth_ipacmd_setadpparms));
3021 rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
3024 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
3026 static int qeth_query_ipassists_cb(struct qeth_card *card,
3027 struct qeth_reply *reply, unsigned long data)
3029 struct qeth_ipa_cmd *cmd;
3031 QETH_DBF_TEXT(SETUP, 2, "qipasscb");
3033 cmd = (struct qeth_ipa_cmd *) data;
3035 switch (cmd->hdr.return_code) {
3036 case IPA_RC_NOTSUPP:
3037 case IPA_RC_L2_UNSUPPORTED_CMD:
3038 QETH_DBF_TEXT(SETUP, 2, "ipaunsup");
3039 card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS;
3040 card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS;
3043 if (cmd->hdr.return_code) {
3044 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Unhandled "
3046 dev_name(&card->gdev->dev),
3047 cmd->hdr.return_code);
3052 if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
3053 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
3054 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
3055 } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) {
3056 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
3057 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
3059 QETH_DBF_MESSAGE(1, "%s IPA_CMD_QIPASSIST: Flawed LIC detected"
3060 "\n", dev_name(&card->gdev->dev));
3064 int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
3067 struct qeth_cmd_buffer *iob;
3069 QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
3070 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
3073 rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
3076 EXPORT_SYMBOL_GPL(qeth_query_ipassists);
3078 static int qeth_query_switch_attributes_cb(struct qeth_card *card,
3079 struct qeth_reply *reply, unsigned long data)
3081 struct qeth_ipa_cmd *cmd;
3082 struct qeth_switch_info *sw_info;
3083 struct qeth_query_switch_attributes *attrs;
3085 QETH_CARD_TEXT(card, 2, "qswiatcb");
3086 cmd = (struct qeth_ipa_cmd *) data;
3087 sw_info = (struct qeth_switch_info *)reply->param;
3088 if (cmd->data.setadapterparms.hdr.return_code == 0) {
3089 attrs = &cmd->data.setadapterparms.data.query_switch_attributes;
3090 sw_info->capabilities = attrs->capabilities;
3091 sw_info->settings = attrs->settings;
3092 QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities,
3095 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3100 int qeth_query_switch_attributes(struct qeth_card *card,
3101 struct qeth_switch_info *sw_info)
3103 struct qeth_cmd_buffer *iob;
3105 QETH_CARD_TEXT(card, 2, "qswiattr");
3106 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES))
3108 if (!netif_carrier_ok(card->dev))
3110 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES,
3111 sizeof(struct qeth_ipacmd_setadpparms_hdr));
3114 return qeth_send_ipa_cmd(card, iob,
3115 qeth_query_switch_attributes_cb, sw_info);
3117 EXPORT_SYMBOL_GPL(qeth_query_switch_attributes);
3119 static int qeth_query_setdiagass_cb(struct qeth_card *card,
3120 struct qeth_reply *reply, unsigned long data)
3122 struct qeth_ipa_cmd *cmd;
3125 cmd = (struct qeth_ipa_cmd *)data;
3126 rc = cmd->hdr.return_code;
3128 QETH_CARD_TEXT_(card, 2, "diagq:%x", rc);
3130 card->info.diagass_support = cmd->data.diagass.ext;
3134 static int qeth_query_setdiagass(struct qeth_card *card)
3136 struct qeth_cmd_buffer *iob;
3137 struct qeth_ipa_cmd *cmd;
3139 QETH_DBF_TEXT(SETUP, 2, "qdiagass");
3140 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3143 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3144 cmd->data.diagass.subcmd_len = 16;
3145 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY;
3146 return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL);
3149 static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
3151 unsigned long info = get_zeroed_page(GFP_KERNEL);
3152 struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info;
3153 struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info;
3154 struct ccw_dev_id ccwid;
3157 tid->chpid = card->info.chpid;
3158 ccw_device_get_id(CARD_RDEV(card), &ccwid);
3159 tid->ssid = ccwid.ssid;
3160 tid->devno = ccwid.devno;
3163 level = stsi(NULL, 0, 0, 0);
3164 if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0))
3165 tid->lparnr = info222->lpar_number;
3166 if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) {
3167 EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name));
3168 memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));
3174 static int qeth_hw_trap_cb(struct qeth_card *card,
3175 struct qeth_reply *reply, unsigned long data)
3177 struct qeth_ipa_cmd *cmd;
3180 cmd = (struct qeth_ipa_cmd *)data;
3181 rc = cmd->hdr.return_code;
3183 QETH_CARD_TEXT_(card, 2, "trapc:%x", rc);
3187 int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action)
3189 struct qeth_cmd_buffer *iob;
3190 struct qeth_ipa_cmd *cmd;
3192 QETH_DBF_TEXT(SETUP, 2, "diagtrap");
3193 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3196 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3197 cmd->data.diagass.subcmd_len = 80;
3198 cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP;
3199 cmd->data.diagass.type = 1;
3200 cmd->data.diagass.action = action;
3202 case QETH_DIAGS_TRAP_ARM:
3203 cmd->data.diagass.options = 0x0003;
3204 cmd->data.diagass.ext = 0x00010000 +
3205 sizeof(struct qeth_trap_id);
3206 qeth_get_trap_id(card,
3207 (struct qeth_trap_id *)cmd->data.diagass.cdata);
3209 case QETH_DIAGS_TRAP_DISARM:
3210 cmd->data.diagass.options = 0x0001;
3212 case QETH_DIAGS_TRAP_CAPTURE:
3215 return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL);
3217 EXPORT_SYMBOL_GPL(qeth_hw_trap);
3219 int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
3220 unsigned int qdio_error, const char *dbftext)
3223 QETH_CARD_TEXT(card, 2, dbftext);
3224 QETH_CARD_TEXT_(card, 2, " F15=%02X",
3225 buf->element[15].sflags);
3226 QETH_CARD_TEXT_(card, 2, " F14=%02X",
3227 buf->element[14].sflags);
3228 QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
3229 if ((buf->element[15].sflags) == 0x12) {
3230 card->stats.rx_dropped++;
3237 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
3239 static void qeth_buffer_reclaim_work(struct work_struct *work)
3241 struct qeth_card *card = container_of(work, struct qeth_card,
3242 buffer_reclaim_work.work);
3244 QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index);
3245 qeth_queue_input_buffer(card, card->reclaim_index);
3248 void qeth_queue_input_buffer(struct qeth_card *card, int index)
3250 struct qeth_qdio_q *queue = card->qdio.in_q;
3251 struct list_head *lh;
3257 count = (index < queue->next_buf_to_init)?
3258 card->qdio.in_buf_pool.buf_count -
3259 (queue->next_buf_to_init - index) :
3260 card->qdio.in_buf_pool.buf_count -
3261 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
3262 /* only requeue at a certain threshold to avoid SIGAs */
3263 if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
3264 for (i = queue->next_buf_to_init;
3265 i < queue->next_buf_to_init + count; ++i) {
3266 if (qeth_init_input_buffer(card,
3267 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
3274 if (newcount < count) {
3275 /* we are in memory shortage so we switch back to
3276 traditional skb allocation and drop packages */
3277 atomic_set(&card->force_alloc_skb, 3);
3280 atomic_add_unless(&card->force_alloc_skb, -1, 0);
3285 list_for_each(lh, &card->qdio.in_buf_pool.entry_list)
3287 if (i == card->qdio.in_buf_pool.buf_count) {
3288 QETH_CARD_TEXT(card, 2, "qsarbw");
3289 card->reclaim_index = index;
3290 schedule_delayed_work(
3291 &card->buffer_reclaim_work,
3292 QETH_RECLAIM_WORK_TIME);
3298 * according to old code it should be avoided to requeue all
3299 * 128 buffers in order to benefit from PCI avoidance.
3300 * this function keeps at least one buffer (the buffer at
3301 * 'index') un-requeued -> this buffer is the first buffer that
3302 * will be requeued the next time
3304 if (card->options.performance_stats) {
3305 card->perf_stats.inbound_do_qdio_cnt++;
3306 card->perf_stats.inbound_do_qdio_start_time =
3309 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
3310 queue->next_buf_to_init, count);
3311 if (card->options.performance_stats)
3312 card->perf_stats.inbound_do_qdio_time +=
3314 card->perf_stats.inbound_do_qdio_start_time;
3316 QETH_CARD_TEXT(card, 2, "qinberr");
3318 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
3319 QDIO_MAX_BUFFERS_PER_Q;
3322 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
3324 static void qeth_handle_send_error(struct qeth_card *card,
3325 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
3327 int sbalf15 = buffer->buffer->element[15].sflags;
3329 QETH_CARD_TEXT(card, 6, "hdsnderr");
3330 if (card->info.type == QETH_CARD_TYPE_IQD) {
3337 qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
3342 if ((sbalf15 >= 15) && (sbalf15 <= 31))
3345 QETH_CARD_TEXT(card, 1, "lnkfail");
3346 QETH_CARD_TEXT_(card, 1, "%04x %02x",
3347 (u16)qdio_err, (u8)sbalf15);
3351 * Switched to packing state if the number of used buffers on a queue
3352 * reaches a certain limit.
3354 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3356 if (!queue->do_pack) {
3357 if (atomic_read(&queue->used_buffers)
3358 >= QETH_HIGH_WATERMARK_PACK){
3359 /* switch non-PACKING -> PACKING */
3360 QETH_CARD_TEXT(queue->card, 6, "np->pack");
3361 if (queue->card->options.performance_stats)
3362 queue->card->perf_stats.sc_dp_p++;
3369 * Switches from packing to non-packing mode. If there is a packing
3370 * buffer on the queue this buffer will be prepared to be flushed.
3371 * In that case 1 is returned to inform the caller. If no buffer
3372 * has to be flushed, zero is returned.
3374 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3376 struct qeth_qdio_out_buffer *buffer;
3377 int flush_count = 0;
3379 if (queue->do_pack) {
3380 if (atomic_read(&queue->used_buffers)
3381 <= QETH_LOW_WATERMARK_PACK) {
3382 /* switch PACKING -> non-PACKING */
3383 QETH_CARD_TEXT(queue->card, 6, "pack->np");
3384 if (queue->card->options.performance_stats)
3385 queue->card->perf_stats.sc_p_dp++;
3387 /* flush packing buffers */
3388 buffer = queue->bufs[queue->next_buf_to_fill];
3389 if ((atomic_read(&buffer->state) ==
3390 QETH_QDIO_BUF_EMPTY) &&
3391 (buffer->next_element_to_fill > 0)) {
3392 atomic_set(&buffer->state,
3393 QETH_QDIO_BUF_PRIMED);
3395 queue->next_buf_to_fill =
3396 (queue->next_buf_to_fill + 1) %
3397 QDIO_MAX_BUFFERS_PER_Q;
3406 * Called to flush a packing buffer if no more pci flags are on the queue.
3407 * Checks if there is a packing buffer and prepares it to be flushed.
3408 * In that case returns 1, otherwise zero.
3410 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3412 struct qeth_qdio_out_buffer *buffer;
3414 buffer = queue->bufs[queue->next_buf_to_fill];
3415 if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3416 (buffer->next_element_to_fill > 0)) {
3417 /* it's a packing buffer */
3418 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3419 queue->next_buf_to_fill =
3420 (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3426 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
3429 struct qeth_qdio_out_buffer *buf;
3432 unsigned int qdio_flags;
3434 for (i = index; i < index + count; ++i) {
3435 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3436 buf = queue->bufs[bidx];
3437 buf->buffer->element[buf->next_element_to_fill - 1].eflags |=
3438 SBAL_EFLAGS_LAST_ENTRY;
3440 if (queue->bufstates)
3441 queue->bufstates[bidx].user = buf;
3443 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
3446 if (!queue->do_pack) {
3447 if ((atomic_read(&queue->used_buffers) >=
3448 (QETH_HIGH_WATERMARK_PACK -
3449 QETH_WATERMARK_PACK_FUZZ)) &&
3450 !atomic_read(&queue->set_pci_flags_count)) {
3451 /* it's likely that we'll go to packing
3453 atomic_inc(&queue->set_pci_flags_count);
3454 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3457 if (!atomic_read(&queue->set_pci_flags_count)) {
3459 * there's no outstanding PCI any more, so we
3460 * have to request a PCI to be sure the the PCI
3461 * will wake at some time in the future then we
3462 * can flush packed buffers that might still be
3463 * hanging around, which can happen if no
3464 * further send was requested by the stack
3466 atomic_inc(&queue->set_pci_flags_count);
3467 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3472 netif_trans_update(queue->card->dev);
3473 if (queue->card->options.performance_stats) {
3474 queue->card->perf_stats.outbound_do_qdio_cnt++;
3475 queue->card->perf_stats.outbound_do_qdio_start_time =
3478 qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3479 if (atomic_read(&queue->set_pci_flags_count))
3480 qdio_flags |= QDIO_FLAG_PCI_OUT;
3481 rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3482 queue->queue_no, index, count);
3483 if (queue->card->options.performance_stats)
3484 queue->card->perf_stats.outbound_do_qdio_time +=
3486 queue->card->perf_stats.outbound_do_qdio_start_time;
3487 atomic_add(count, &queue->used_buffers);
3489 queue->card->stats.tx_errors += count;
3490 /* ignore temporary SIGA errors without busy condition */
3493 QETH_CARD_TEXT(queue->card, 2, "flushbuf");
3494 QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
3495 QETH_CARD_TEXT_(queue->card, 2, " idx%d", index);
3496 QETH_CARD_TEXT_(queue->card, 2, " c%d", count);
3497 QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
3499 /* this must not happen under normal circumstances. if it
3500 * happens something is really wrong -> recover */
3501 qeth_schedule_recovery(queue->card);
3504 if (queue->card->options.performance_stats)
3505 queue->card->perf_stats.bufs_sent += count;
3508 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3512 int q_was_packing = 0;
3515 * check if weed have to switch to non-packing mode or if
3516 * we have to get a pci flag out on the queue
3518 if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3519 !atomic_read(&queue->set_pci_flags_count)) {
3520 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3521 QETH_OUT_Q_UNLOCKED) {
3523 * If we get in here, there was no action in
3524 * do_send_packet. So, we check if there is a
3525 * packing buffer to be flushed here.
3527 netif_stop_queue(queue->card->dev);
3528 index = queue->next_buf_to_fill;
3529 q_was_packing = queue->do_pack;
3530 /* queue->do_pack may change */
3532 flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3534 !atomic_read(&queue->set_pci_flags_count))
3536 qeth_flush_buffers_on_no_pci(queue);
3537 if (queue->card->options.performance_stats &&
3539 queue->card->perf_stats.bufs_sent_pack +=
3542 qeth_flush_buffers(queue, index, flush_cnt);
3543 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3548 void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
3549 unsigned long card_ptr)
3551 struct qeth_card *card = (struct qeth_card *)card_ptr;
3553 if (card->dev && (card->dev->flags & IFF_UP))
3554 napi_schedule(&card->napi);
3556 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
3558 int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
3562 if (card->options.cq == QETH_CQ_NOTAVAILABLE) {
3566 if (card->options.cq == cq) {
3571 if (card->state != CARD_STATE_DOWN &&
3572 card->state != CARD_STATE_RECOVER) {
3577 qeth_free_qdio_buffers(card);
3578 card->options.cq = cq;
3585 EXPORT_SYMBOL_GPL(qeth_configure_cq);
3588 static void qeth_qdio_cq_handler(struct qeth_card *card,
3589 unsigned int qdio_err,
3590 unsigned int queue, int first_element, int count) {
3591 struct qeth_qdio_q *cq = card->qdio.c_q;
3595 if (!qeth_is_cq(card, queue))
3598 QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element);
3599 QETH_CARD_TEXT_(card, 5, "qcqhc%d", count);
3600 QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err);
3603 netif_stop_queue(card->dev);
3604 qeth_schedule_recovery(card);
3608 if (card->options.performance_stats) {
3609 card->perf_stats.cq_cnt++;
3610 card->perf_stats.cq_start_time = qeth_get_micros();
3613 for (i = first_element; i < first_element + count; ++i) {
3614 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3615 struct qdio_buffer *buffer = cq->qdio_bufs[bidx];
3619 while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) &&
3620 buffer->element[e].addr) {
3621 unsigned long phys_aob_addr;
3623 phys_aob_addr = (unsigned long) buffer->element[e].addr;
3624 qeth_qdio_handle_aob(card, phys_aob_addr);
3625 buffer->element[e].addr = NULL;
3626 buffer->element[e].eflags = 0;
3627 buffer->element[e].sflags = 0;
3628 buffer->element[e].length = 0;
3633 buffer->element[15].eflags = 0;
3634 buffer->element[15].sflags = 0;
3636 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue,
3637 card->qdio.c_q->next_buf_to_init,
3640 dev_warn(&card->gdev->dev,
3641 "QDIO reported an error, rc=%i\n", rc);
3642 QETH_CARD_TEXT(card, 2, "qcqherr");
3644 card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init
3645 + count) % QDIO_MAX_BUFFERS_PER_Q;
3647 netif_wake_queue(card->dev);
3649 if (card->options.performance_stats) {
3650 int delta_t = qeth_get_micros();
3651 delta_t -= card->perf_stats.cq_start_time;
3652 card->perf_stats.cq_time += delta_t;
3658 void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
3659 unsigned int queue, int first_elem, int count,
3660 unsigned long card_ptr)
3662 struct qeth_card *card = (struct qeth_card *)card_ptr;
3664 QETH_CARD_TEXT_(card, 2, "qihq%d", queue);
3665 QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err);
3667 if (qeth_is_cq(card, queue))
3668 qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count);
3670 qeth_schedule_recovery(card);
3674 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
3676 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
3677 unsigned int qdio_error, int __queue, int first_element,
3678 int count, unsigned long card_ptr)
3680 struct qeth_card *card = (struct qeth_card *) card_ptr;
3681 struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3682 struct qeth_qdio_out_buffer *buffer;
3685 QETH_CARD_TEXT(card, 6, "qdouhdl");
3686 if (qdio_error & QDIO_ERROR_FATAL) {
3687 QETH_CARD_TEXT(card, 2, "achkcond");
3688 netif_stop_queue(card->dev);
3689 qeth_schedule_recovery(card);
3692 if (card->options.performance_stats) {
3693 card->perf_stats.outbound_handler_cnt++;
3694 card->perf_stats.outbound_handler_start_time =
3697 for (i = first_element; i < (first_element + count); ++i) {
3698 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3699 buffer = queue->bufs[bidx];
3700 qeth_handle_send_error(card, buffer, qdio_error);
3702 if (queue->bufstates &&
3703 (queue->bufstates[bidx].flags &
3704 QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) {
3705 WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
3707 if (atomic_cmpxchg(&buffer->state,
3708 QETH_QDIO_BUF_PRIMED,
3709 QETH_QDIO_BUF_PENDING) ==
3710 QETH_QDIO_BUF_PRIMED) {
3711 qeth_notify_skbs(queue, buffer,
3714 buffer->aob = queue->bufstates[bidx].aob;
3715 QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx);
3716 QETH_CARD_TEXT(queue->card, 5, "aob");
3717 QETH_CARD_TEXT_(queue->card, 5, "%lx",
3718 virt_to_phys(buffer->aob));
3719 if (qeth_init_qdio_out_buf(queue, bidx)) {
3720 QETH_CARD_TEXT(card, 2, "outofbuf");
3721 qeth_schedule_recovery(card);
3724 if (card->options.cq == QETH_CQ_ENABLED) {
3725 enum iucv_tx_notify n;
3727 n = qeth_compute_cq_notification(
3728 buffer->buffer->element[15].sflags, 0);
3729 qeth_notify_skbs(queue, buffer, n);
3732 qeth_clear_output_buffer(queue, buffer,
3733 QETH_QDIO_BUF_EMPTY);
3735 qeth_cleanup_handled_pending(queue, bidx, 0);
3737 atomic_sub(count, &queue->used_buffers);
3738 /* check if we need to do something on this outbound queue */
3739 if (card->info.type != QETH_CARD_TYPE_IQD)
3740 qeth_check_outbound_queue(queue);
3742 netif_wake_queue(queue->card->dev);
3743 if (card->options.performance_stats)
3744 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3745 card->perf_stats.outbound_handler_start_time;
3747 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
3749 /* We cannot use outbound queue 3 for unicast packets on HiperSockets */
3750 static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num)
3752 if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3))
3758 * Note: Function assumes that we have 4 outbound queues.
3760 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3761 int ipv, int cast_type)
3766 if (cast_type && card->info.is_multicast_different)
3767 return card->info.is_multicast_different &
3768 (card->qdio.no_out_queues - 1);
3770 switch (card->qdio.do_prio_queueing) {
3771 case QETH_PRIO_Q_ING_TOS:
3772 case QETH_PRIO_Q_ING_PREC:
3775 tos = ipv4_get_dsfield(ip_hdr(skb));
3778 tos = ipv6_get_dsfield(ipv6_hdr(skb));
3781 return card->qdio.default_out_queue;
3783 if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC)
3784 return qeth_cut_iqd_prio(card, ~tos >> 6 & 3);
3785 if (tos & IPTOS_MINCOST)
3786 return qeth_cut_iqd_prio(card, 3);
3787 if (tos & IPTOS_RELIABILITY)
3789 if (tos & IPTOS_THROUGHPUT)
3791 if (tos & IPTOS_LOWDELAY)
3794 case QETH_PRIO_Q_ING_SKB:
3795 if (skb->priority > 5)
3797 return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3);
3798 case QETH_PRIO_Q_ING_VLAN:
3799 tci = &((struct ethhdr *)skb->data)->h_proto;
3800 if (be16_to_cpu(*tci) == ETH_P_8021Q)
3801 return qeth_cut_iqd_prio(card,
3802 ~be16_to_cpu(*(tci + 1)) >> (VLAN_PRIO_SHIFT + 1) & 3);
3807 return card->qdio.default_out_queue;
3809 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
3812 * qeth_get_elements_for_frags() - find number of SBALEs for skb frags.
3815 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3816 * fragmented part of the SKB. Returns zero for linear SKB.
3818 int qeth_get_elements_for_frags(struct sk_buff *skb)
3820 int cnt, elements = 0;
3822 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3823 struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt];
3825 elements += qeth_get_elements_for_range(
3826 (addr_t)skb_frag_address(frag),
3827 (addr_t)skb_frag_address(frag) + skb_frag_size(frag));
3831 EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags);
3834 * qeth_get_elements_no() - find number of SBALEs for skb data, inc. frags.
3835 * @card: qeth card structure, to check max. elems.
3837 * @extra_elems: extra elems needed, to check against max.
3838 * @data_offset: range starts at skb->data + data_offset
3840 * Returns the number of pages, and thus QDIO buffer elements, needed to cover
3841 * skb data, including linear part and fragments. Checks if the result plus
3842 * extra_elems fits under the limit for the card. Returns 0 if it does not.
3843 * Note: extra_elems is not included in the returned result.
3845 int qeth_get_elements_no(struct qeth_card *card,
3846 struct sk_buff *skb, int extra_elems, int data_offset)
3848 int elements = qeth_get_elements_for_range(
3849 (addr_t)skb->data + data_offset,
3850 (addr_t)skb->data + skb_headlen(skb)) +
3851 qeth_get_elements_for_frags(skb);
3853 if ((elements + extra_elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3854 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3855 "(Number=%d / Length=%d). Discarded.\n",
3856 elements + extra_elems, skb->len);
3861 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3863 int qeth_hdr_chk_and_bounce(struct sk_buff *skb, struct qeth_hdr **hdr, int len)
3865 int hroom, inpage, rest;
3867 if (((unsigned long)skb->data & PAGE_MASK) !=
3868 (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
3869 hroom = skb_headroom(skb);
3870 inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
3871 rest = len - inpage;
3874 memmove(skb->data - rest, skb->data, skb_headlen(skb));
3877 *hdr = (struct qeth_hdr *)skb->data;
3878 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
3882 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
3884 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3885 struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3888 int length = skb_headlen(skb);
3893 struct skb_frag_struct *frag;
3895 element = *next_element_to_fill;
3897 first_lap = (is_tso == 0 ? 1 : 0);
3900 data = skb->data + offset;
3905 while (length > 0) {
3906 /* length_here is the remaining amount of data in this page */
3907 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3908 if (length < length_here)
3909 length_here = length;
3911 buffer->element[element].addr = data;
3912 buffer->element[element].length = length_here;
3913 length -= length_here;
3916 if (skb_shinfo(skb)->nr_frags)
3917 buffer->element[element].eflags =
3918 SBAL_EFLAGS_FIRST_FRAG;
3920 buffer->element[element].eflags = 0;
3922 buffer->element[element].eflags =
3923 SBAL_EFLAGS_MIDDLE_FRAG;
3926 buffer->element[element].eflags =
3927 SBAL_EFLAGS_FIRST_FRAG;
3929 buffer->element[element].eflags =
3930 SBAL_EFLAGS_MIDDLE_FRAG;
3932 data += length_here;
3937 for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3938 frag = &skb_shinfo(skb)->frags[cnt];
3939 data = (char *)page_to_phys(skb_frag_page(frag)) +
3941 length = frag->size;
3942 while (length > 0) {
3943 length_here = PAGE_SIZE -
3944 ((unsigned long) data % PAGE_SIZE);
3945 if (length < length_here)
3946 length_here = length;
3948 buffer->element[element].addr = data;
3949 buffer->element[element].length = length_here;
3950 buffer->element[element].eflags =
3951 SBAL_EFLAGS_MIDDLE_FRAG;
3952 length -= length_here;
3953 data += length_here;
3958 if (buffer->element[element - 1].eflags)
3959 buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG;
3960 *next_element_to_fill = element;
3963 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3964 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3965 struct qeth_hdr *hdr, int offset, int hd_len)
3967 struct qdio_buffer *buffer;
3968 int flush_cnt = 0, hdr_len, large_send = 0;
3970 buffer = buf->buffer;
3971 atomic_inc(&skb->users);
3972 skb_queue_tail(&buf->skb_list, skb);
3974 /*check first on TSO ....*/
3975 if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3976 int element = buf->next_element_to_fill;
3978 hdr_len = sizeof(struct qeth_hdr_tso) +
3979 ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3980 /*fill first buffer entry only with header information */
3981 buffer->element[element].addr = skb->data;
3982 buffer->element[element].length = hdr_len;
3983 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
3984 buf->next_element_to_fill++;
3985 skb->data += hdr_len;
3986 skb->len -= hdr_len;
3991 int element = buf->next_element_to_fill;
3992 buffer->element[element].addr = hdr;
3993 buffer->element[element].length = sizeof(struct qeth_hdr) +
3995 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
3996 buf->is_header[element] = 1;
3997 buf->next_element_to_fill++;
4000 __qeth_fill_buffer(skb, buffer, large_send,
4001 (int *)&buf->next_element_to_fill, offset);
4003 if (!queue->do_pack) {
4004 QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
4005 /* set state to PRIMED -> will be flushed */
4006 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4009 QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
4010 if (queue->card->options.performance_stats)
4011 queue->card->perf_stats.skbs_sent_pack++;
4012 if (buf->next_element_to_fill >=
4013 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4015 * packed buffer if full -> set state PRIMED
4016 * -> will be flushed
4018 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4025 int qeth_do_send_packet_fast(struct qeth_card *card,
4026 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
4027 struct qeth_hdr *hdr, int elements_needed,
4028 int offset, int hd_len)
4030 struct qeth_qdio_out_buffer *buffer;
4033 /* spin until we get the queue ... */
4034 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4035 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4036 /* ... now we've got the queue */
4037 index = queue->next_buf_to_fill;
4038 buffer = queue->bufs[queue->next_buf_to_fill];
4040 * check if buffer is empty to make sure that we do not 'overtake'
4041 * ourselves and try to fill a buffer that is already primed
4043 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4045 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4046 QDIO_MAX_BUFFERS_PER_Q;
4047 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4048 qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
4049 qeth_flush_buffers(queue, index, 1);
4052 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4055 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
4057 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4058 struct sk_buff *skb, struct qeth_hdr *hdr,
4059 int elements_needed)
4061 struct qeth_qdio_out_buffer *buffer;
4063 int flush_count = 0;
4068 /* spin until we get the queue ... */
4069 while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4070 QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4071 start_index = queue->next_buf_to_fill;
4072 buffer = queue->bufs[queue->next_buf_to_fill];
4074 * check if buffer is empty to make sure that we do not 'overtake'
4075 * ourselves and try to fill a buffer that is already primed
4077 if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4078 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4081 /* check if we need to switch packing state of this queue */
4082 qeth_switch_to_packing_if_needed(queue);
4083 if (queue->do_pack) {
4085 /* does packet fit in current buffer? */
4086 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
4087 buffer->next_element_to_fill) < elements_needed) {
4088 /* ... no -> set state PRIMED */
4089 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
4091 queue->next_buf_to_fill =
4092 (queue->next_buf_to_fill + 1) %
4093 QDIO_MAX_BUFFERS_PER_Q;
4094 buffer = queue->bufs[queue->next_buf_to_fill];
4095 /* we did a step forward, so check buffer state
4097 if (atomic_read(&buffer->state) !=
4098 QETH_QDIO_BUF_EMPTY) {
4099 qeth_flush_buffers(queue, start_index,
4101 atomic_set(&queue->state,
4102 QETH_OUT_Q_UNLOCKED);
4107 tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
4108 queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4109 QDIO_MAX_BUFFERS_PER_Q;
4112 qeth_flush_buffers(queue, start_index, flush_count);
4113 else if (!atomic_read(&queue->set_pci_flags_count))
4114 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4116 * queue->state will go from LOCKED -> UNLOCKED or from
4117 * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4118 * (switch packing state or flush buffer to get another pci flag out).
4119 * In that case we will enter this loop
4121 while (atomic_dec_return(&queue->state)) {
4123 start_index = queue->next_buf_to_fill;
4124 /* check if we can go back to non-packing state */
4125 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4127 * check if we need to flush a packing buffer to get a pci
4128 * flag out on the queue
4130 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4131 flush_count += qeth_flush_buffers_on_no_pci(queue);
4133 qeth_flush_buffers(queue, start_index, flush_count);
4135 /* at this point the queue is UNLOCKED again */
4136 if (queue->card->options.performance_stats && do_pack)
4137 queue->card->perf_stats.bufs_sent_pack += flush_count;
4141 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
4143 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
4144 struct qeth_reply *reply, unsigned long data)
4146 struct qeth_ipa_cmd *cmd;
4147 struct qeth_ipacmd_setadpparms *setparms;
4149 QETH_CARD_TEXT(card, 4, "prmadpcb");
4151 cmd = (struct qeth_ipa_cmd *) data;
4152 setparms = &(cmd->data.setadapterparms);
4154 qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
4155 if (cmd->hdr.return_code) {
4156 QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code);
4157 setparms->data.mode = SET_PROMISC_MODE_OFF;
4159 card->info.promisc_mode = setparms->data.mode;
4163 void qeth_setadp_promisc_mode(struct qeth_card *card)
4165 enum qeth_ipa_promisc_modes mode;
4166 struct net_device *dev = card->dev;
4167 struct qeth_cmd_buffer *iob;
4168 struct qeth_ipa_cmd *cmd;
4170 QETH_CARD_TEXT(card, 4, "setprom");
4172 if (((dev->flags & IFF_PROMISC) &&
4173 (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
4174 (!(dev->flags & IFF_PROMISC) &&
4175 (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
4177 mode = SET_PROMISC_MODE_OFF;
4178 if (dev->flags & IFF_PROMISC)
4179 mode = SET_PROMISC_MODE_ON;
4180 QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
4182 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
4183 sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8);
4186 cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
4187 cmd->data.setadapterparms.data.mode = mode;
4188 qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
4190 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
4192 int qeth_change_mtu(struct net_device *dev, int new_mtu)
4194 struct qeth_card *card;
4197 card = dev->ml_priv;
4199 QETH_CARD_TEXT(card, 4, "chgmtu");
4200 sprintf(dbf_text, "%8x", new_mtu);
4201 QETH_CARD_TEXT(card, 4, dbf_text);
4203 if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
4204 (!qeth_mtu_is_valid(card, new_mtu)))
4209 EXPORT_SYMBOL_GPL(qeth_change_mtu);
4211 struct net_device_stats *qeth_get_stats(struct net_device *dev)
4213 struct qeth_card *card;
4215 card = dev->ml_priv;
4217 QETH_CARD_TEXT(card, 5, "getstat");
4219 return &card->stats;
4221 EXPORT_SYMBOL_GPL(qeth_get_stats);
4223 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
4224 struct qeth_reply *reply, unsigned long data)
4226 struct qeth_ipa_cmd *cmd;
4228 QETH_CARD_TEXT(card, 4, "chgmaccb");
4230 cmd = (struct qeth_ipa_cmd *) data;
4231 if (!card->options.layer2 ||
4232 !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
4233 memcpy(card->dev->dev_addr,
4234 &cmd->data.setadapterparms.data.change_addr.addr,
4236 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
4238 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4242 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
4245 struct qeth_cmd_buffer *iob;
4246 struct qeth_ipa_cmd *cmd;
4248 QETH_CARD_TEXT(card, 4, "chgmac");
4250 iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
4251 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4252 sizeof(struct qeth_change_addr));
4255 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4256 cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
4257 cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
4258 memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
4259 card->dev->dev_addr, OSA_ADDR_LEN);
4260 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
4264 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
4266 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
4267 struct qeth_reply *reply, unsigned long data)
4269 struct qeth_ipa_cmd *cmd;
4270 struct qeth_set_access_ctrl *access_ctrl_req;
4271 int fallback = *(int *)reply->param;
4273 QETH_CARD_TEXT(card, 4, "setaccb");
4275 cmd = (struct qeth_ipa_cmd *) data;
4276 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4277 QETH_DBF_TEXT_(SETUP, 2, "setaccb");
4278 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4279 QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
4280 cmd->data.setadapterparms.hdr.return_code);
4281 if (cmd->data.setadapterparms.hdr.return_code !=
4282 SET_ACCESS_CTRL_RC_SUCCESS)
4283 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4284 card->gdev->dev.kobj.name,
4285 access_ctrl_req->subcmd_code,
4286 cmd->data.setadapterparms.hdr.return_code);
4287 switch (cmd->data.setadapterparms.hdr.return_code) {
4288 case SET_ACCESS_CTRL_RC_SUCCESS:
4289 if (card->options.isolation == ISOLATION_MODE_NONE) {
4290 dev_info(&card->gdev->dev,
4291 "QDIO data connection isolation is deactivated\n");
4293 dev_info(&card->gdev->dev,
4294 "QDIO data connection isolation is activated\n");
4297 case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
4298 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
4299 "deactivated\n", dev_name(&card->gdev->dev));
4301 card->options.isolation = card->options.prev_isolation;
4303 case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
4304 QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
4305 " activated\n", dev_name(&card->gdev->dev));
4307 card->options.isolation = card->options.prev_isolation;
4309 case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
4310 dev_err(&card->gdev->dev, "Adapter does not "
4311 "support QDIO data connection isolation\n");
4313 case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
4314 dev_err(&card->gdev->dev,
4315 "Adapter is dedicated. "
4316 "QDIO data connection isolation not supported\n");
4318 card->options.isolation = card->options.prev_isolation;
4320 case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
4321 dev_err(&card->gdev->dev,
4322 "TSO does not permit QDIO data connection isolation\n");
4324 card->options.isolation = card->options.prev_isolation;
4326 case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED:
4327 dev_err(&card->gdev->dev, "The adjacent switch port does not "
4328 "support reflective relay mode\n");
4330 card->options.isolation = card->options.prev_isolation;
4332 case SET_ACCESS_CTRL_RC_REFLREL_FAILED:
4333 dev_err(&card->gdev->dev, "The reflective relay mode cannot be "
4334 "enabled at the adjacent switch port");
4336 card->options.isolation = card->options.prev_isolation;
4338 case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED:
4339 dev_warn(&card->gdev->dev, "Turning off reflective relay mode "
4340 "at the adjacent switch failed\n");
4343 /* this should never happen */
4345 card->options.isolation = card->options.prev_isolation;
4348 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4352 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
4353 enum qeth_ipa_isolation_modes isolation, int fallback)
4356 struct qeth_cmd_buffer *iob;
4357 struct qeth_ipa_cmd *cmd;
4358 struct qeth_set_access_ctrl *access_ctrl_req;
4360 QETH_CARD_TEXT(card, 4, "setacctl");
4362 QETH_DBF_TEXT_(SETUP, 2, "setacctl");
4363 QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4365 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
4366 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4367 sizeof(struct qeth_set_access_ctrl));
4370 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4371 access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4372 access_ctrl_req->subcmd_code = isolation;
4374 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
4376 QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
4380 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback)
4384 QETH_CARD_TEXT(card, 4, "setactlo");
4386 if ((card->info.type == QETH_CARD_TYPE_OSD ||
4387 card->info.type == QETH_CARD_TYPE_OSX) &&
4388 qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
4389 rc = qeth_setadpparms_set_access_ctrl(card,
4390 card->options.isolation, fallback);
4393 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4394 card->gdev->dev.kobj.name,
4398 } else if (card->options.isolation != ISOLATION_MODE_NONE) {
4399 card->options.isolation = ISOLATION_MODE_NONE;
4401 dev_err(&card->gdev->dev, "Adapter does not "
4402 "support QDIO data connection isolation\n");
4407 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
4409 void qeth_tx_timeout(struct net_device *dev)
4411 struct qeth_card *card;
4413 card = dev->ml_priv;
4414 QETH_CARD_TEXT(card, 4, "txtimeo");
4415 card->stats.tx_errors++;
4416 qeth_schedule_recovery(card);
4418 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
4420 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4422 struct qeth_card *card = dev->ml_priv;
4426 case MII_BMCR: /* Basic mode control register */
4428 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
4429 (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4430 (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4431 rc |= BMCR_SPEED100;
4433 case MII_BMSR: /* Basic mode status register */
4434 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4435 BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4438 case MII_PHYSID1: /* PHYS ID 1 */
4439 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4441 rc = (rc >> 5) & 0xFFFF;
4443 case MII_PHYSID2: /* PHYS ID 2 */
4444 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4446 case MII_ADVERTISE: /* Advertisement control reg */
4449 case MII_LPA: /* Link partner ability reg */
4450 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4451 LPA_100BASE4 | LPA_LPACK;
4453 case MII_EXPANSION: /* Expansion register */
4455 case MII_DCOUNTER: /* disconnect counter */
4457 case MII_FCSCOUNTER: /* false carrier counter */
4459 case MII_NWAYTEST: /* N-way auto-neg test register */
4461 case MII_RERRCOUNTER: /* rx error counter */
4462 rc = card->stats.rx_errors;
4464 case MII_SREVISION: /* silicon revision */
4466 case MII_RESV1: /* reserved 1 */
4468 case MII_LBRERROR: /* loopback, rx, bypass error */
4470 case MII_PHYADDR: /* physical address */
4472 case MII_RESV2: /* reserved 2 */
4474 case MII_TPISTATUS: /* TPI status for 10mbps */
4476 case MII_NCONFIG: /* network interface config */
4483 EXPORT_SYMBOL_GPL(qeth_mdio_read);
4485 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
4486 struct qeth_cmd_buffer *iob, int len,
4487 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
4493 QETH_CARD_TEXT(card, 4, "sendsnmp");
4495 memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4496 memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4497 &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4498 /* adjust PDU length fields in IPA_PDU_HEADER */
4499 s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4501 memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4502 memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4503 memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4504 memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4505 return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4506 reply_cb, reply_param);
4509 static int qeth_snmp_command_cb(struct qeth_card *card,
4510 struct qeth_reply *reply, unsigned long sdata)
4512 struct qeth_ipa_cmd *cmd;
4513 struct qeth_arp_query_info *qinfo;
4514 struct qeth_snmp_cmd *snmp;
4515 unsigned char *data;
4518 QETH_CARD_TEXT(card, 3, "snpcmdcb");
4520 cmd = (struct qeth_ipa_cmd *) sdata;
4521 data = (unsigned char *)((char *)cmd - reply->offset);
4522 qinfo = (struct qeth_arp_query_info *) reply->param;
4523 snmp = &cmd->data.setadapterparms.data.snmp;
4525 if (cmd->hdr.return_code) {
4526 QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code);
4529 if (cmd->data.setadapterparms.hdr.return_code) {
4530 cmd->hdr.return_code =
4531 cmd->data.setadapterparms.hdr.return_code;
4532 QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code);
4535 data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
4536 if (cmd->data.setadapterparms.hdr.seq_no == 1)
4537 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4539 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
4541 /* check if there is enough room in userspace */
4542 if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4543 QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
4544 cmd->hdr.return_code = IPA_RC_ENOMEM;
4547 QETH_CARD_TEXT_(card, 4, "snore%i",
4548 cmd->data.setadapterparms.hdr.used_total);
4549 QETH_CARD_TEXT_(card, 4, "sseqn%i",
4550 cmd->data.setadapterparms.hdr.seq_no);
4551 /*copy entries to user buffer*/
4552 if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4553 memcpy(qinfo->udata + qinfo->udata_offset,
4555 data_len + offsetof(struct qeth_snmp_cmd, data));
4556 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4558 memcpy(qinfo->udata + qinfo->udata_offset,
4559 (char *)&snmp->request, data_len);
4561 qinfo->udata_offset += data_len;
4562 /* check if all replies received ... */
4563 QETH_CARD_TEXT_(card, 4, "srtot%i",
4564 cmd->data.setadapterparms.hdr.used_total);
4565 QETH_CARD_TEXT_(card, 4, "srseq%i",
4566 cmd->data.setadapterparms.hdr.seq_no);
4567 if (cmd->data.setadapterparms.hdr.seq_no <
4568 cmd->data.setadapterparms.hdr.used_total)
4573 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
4575 struct qeth_cmd_buffer *iob;
4576 struct qeth_ipa_cmd *cmd;
4577 struct qeth_snmp_ureq *ureq;
4578 unsigned int req_len;
4579 struct qeth_arp_query_info qinfo = {0, };
4582 QETH_CARD_TEXT(card, 3, "snmpcmd");
4584 if (card->info.guestlan)
4587 if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
4588 (!card->options.layer2)) {
4591 /* skip 4 bytes (data_len struct member) to get req_len */
4592 if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4594 if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE -
4595 sizeof(struct qeth_ipacmd_hdr) -
4596 sizeof(struct qeth_ipacmd_setadpparms_hdr)))
4598 ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
4600 QETH_CARD_TEXT(card, 2, "snmpnome");
4601 return PTR_ERR(ureq);
4603 qinfo.udata_len = ureq->hdr.data_len;
4604 qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
4609 qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4611 iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4612 QETH_SNMP_SETADP_CMDLENGTH + req_len);
4617 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4618 memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4619 rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4620 qeth_snmp_command_cb, (void *)&qinfo);
4622 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4623 QETH_CARD_IFNAME(card), rc);
4625 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4633 EXPORT_SYMBOL_GPL(qeth_snmp_command);
4635 static int qeth_setadpparms_query_oat_cb(struct qeth_card *card,
4636 struct qeth_reply *reply, unsigned long data)
4638 struct qeth_ipa_cmd *cmd;
4639 struct qeth_qoat_priv *priv;
4643 QETH_CARD_TEXT(card, 3, "qoatcb");
4645 cmd = (struct qeth_ipa_cmd *)data;
4646 priv = (struct qeth_qoat_priv *)reply->param;
4647 resdatalen = cmd->data.setadapterparms.hdr.cmdlength;
4648 resdata = (char *)data + 28;
4650 if (resdatalen > (priv->buffer_len - priv->response_len)) {
4651 cmd->hdr.return_code = IPA_RC_FFFF;
4655 memcpy((priv->buffer + priv->response_len), resdata,
4657 priv->response_len += resdatalen;
4659 if (cmd->data.setadapterparms.hdr.seq_no <
4660 cmd->data.setadapterparms.hdr.used_total)
4665 int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
4668 struct qeth_cmd_buffer *iob;
4669 struct qeth_ipa_cmd *cmd;
4670 struct qeth_query_oat *oat_req;
4671 struct qeth_query_oat_data oat_data;
4672 struct qeth_qoat_priv priv;
4675 QETH_CARD_TEXT(card, 3, "qoatcmd");
4677 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) {
4682 if (copy_from_user(&oat_data, udata,
4683 sizeof(struct qeth_query_oat_data))) {
4688 priv.buffer_len = oat_data.buffer_len;
4689 priv.response_len = 0;
4690 priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL);
4696 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT,
4697 sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4698 sizeof(struct qeth_query_oat));
4703 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4704 oat_req = &cmd->data.setadapterparms.data.query_oat;
4705 oat_req->subcmd_code = oat_data.command;
4707 rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb,
4710 if (is_compat_task())
4711 tmp = compat_ptr(oat_data.ptr);
4713 tmp = (void __user *)(unsigned long)oat_data.ptr;
4715 if (copy_to_user(tmp, priv.buffer,
4716 priv.response_len)) {
4721 oat_data.response_len = priv.response_len;
4723 if (copy_to_user(udata, &oat_data,
4724 sizeof(struct qeth_query_oat_data)))
4727 if (rc == IPA_RC_FFFF)
4735 EXPORT_SYMBOL_GPL(qeth_query_oat_command);
4737 static int qeth_query_card_info_cb(struct qeth_card *card,
4738 struct qeth_reply *reply, unsigned long data)
4740 struct qeth_ipa_cmd *cmd;
4741 struct qeth_query_card_info *card_info;
4742 struct carrier_info *carrier_info;
4744 QETH_CARD_TEXT(card, 2, "qcrdincb");
4745 carrier_info = (struct carrier_info *)reply->param;
4746 cmd = (struct qeth_ipa_cmd *)data;
4747 card_info = &cmd->data.setadapterparms.data.card_info;
4748 if (cmd->data.setadapterparms.hdr.return_code == 0) {
4749 carrier_info->card_type = card_info->card_type;
4750 carrier_info->port_mode = card_info->port_mode;
4751 carrier_info->port_speed = card_info->port_speed;
4754 qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4758 static int qeth_query_card_info(struct qeth_card *card,
4759 struct carrier_info *carrier_info)
4761 struct qeth_cmd_buffer *iob;
4763 QETH_CARD_TEXT(card, 2, "qcrdinfo");
4764 if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO))
4766 iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO,
4767 sizeof(struct qeth_ipacmd_setadpparms_hdr));
4770 return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb,
4771 (void *)carrier_info);
4774 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
4776 if (card->info.type == QETH_CARD_TYPE_IQD)
4777 return QDIO_IQDIO_QFMT;
4779 return QDIO_QETH_QFMT;
4782 static void qeth_determine_capabilities(struct qeth_card *card)
4787 struct ccw_device *ddev;
4788 int ddev_offline = 0;
4790 QETH_DBF_TEXT(SETUP, 2, "detcapab");
4791 ddev = CARD_DDEV(card);
4792 if (!ddev->online) {
4794 rc = ccw_device_set_online(ddev);
4796 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4801 rc = qeth_read_conf_data(card, (void **) &prcd, &length);
4803 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4804 dev_name(&card->gdev->dev), rc);
4805 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4808 qeth_configure_unitaddr(card, prcd);
4810 qeth_configure_blkt_default(card, prcd);
4813 rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
4815 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4817 QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt);
4818 QETH_DBF_TEXT_(SETUP, 2, "ac1:%02x", card->ssqd.qdioac1);
4819 QETH_DBF_TEXT_(SETUP, 2, "ac2:%04x", card->ssqd.qdioac2);
4820 QETH_DBF_TEXT_(SETUP, 2, "ac3:%04x", card->ssqd.qdioac3);
4821 QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt);
4822 if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) ||
4823 ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) ||
4824 ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) {
4825 dev_info(&card->gdev->dev,
4826 "Completion Queueing supported\n");
4828 card->options.cq = QETH_CQ_NOTAVAILABLE;
4833 if (ddev_offline == 1)
4834 ccw_device_set_offline(ddev);
4839 static inline void qeth_qdio_establish_cq(struct qeth_card *card,
4840 struct qdio_buffer **in_sbal_ptrs,
4841 void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) {
4844 if (card->options.cq == QETH_CQ_ENABLED) {
4845 int offset = QDIO_MAX_BUFFERS_PER_Q *
4846 (card->qdio.no_in_queues - 1);
4847 i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1);
4848 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4849 in_sbal_ptrs[offset + i] = (struct qdio_buffer *)
4850 virt_to_phys(card->qdio.c_q->bufs[i].buffer);
4853 queue_start_poll[card->qdio.no_in_queues - 1] = NULL;
4857 static int qeth_qdio_establish(struct qeth_card *card)
4859 struct qdio_initialize init_data;
4860 char *qib_param_field;
4861 struct qdio_buffer **in_sbal_ptrs;
4862 void (**queue_start_poll) (struct ccw_device *, int, unsigned long);
4863 struct qdio_buffer **out_sbal_ptrs;
4867 QETH_DBF_TEXT(SETUP, 2, "qdioest");
4869 qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
4871 if (!qib_param_field) {
4873 goto out_free_nothing;
4876 qeth_create_qib_param_field(card, qib_param_field);
4877 qeth_create_qib_param_field_blkt(card, qib_param_field);
4879 in_sbal_ptrs = kzalloc(card->qdio.no_in_queues *
4880 QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
4882 if (!in_sbal_ptrs) {
4884 goto out_free_qib_param;
4886 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4887 in_sbal_ptrs[i] = (struct qdio_buffer *)
4888 virt_to_phys(card->qdio.in_q->bufs[i].buffer);
4891 queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues,
4893 if (!queue_start_poll) {
4895 goto out_free_in_sbals;
4897 for (i = 0; i < card->qdio.no_in_queues; ++i)
4898 queue_start_poll[i] = card->discipline->start_poll;
4900 qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
4903 kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
4904 sizeof(void *), GFP_KERNEL);
4905 if (!out_sbal_ptrs) {
4907 goto out_free_queue_start_poll;
4909 for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
4910 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
4911 out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
4912 card->qdio.out_qs[i]->bufs[j]->buffer);
4915 memset(&init_data, 0, sizeof(struct qdio_initialize));
4916 init_data.cdev = CARD_DDEV(card);
4917 init_data.q_format = qeth_get_qdio_q_format(card);
4918 init_data.qib_param_field_format = 0;
4919 init_data.qib_param_field = qib_param_field;
4920 init_data.no_input_qs = card->qdio.no_in_queues;
4921 init_data.no_output_qs = card->qdio.no_out_queues;
4922 init_data.input_handler = card->discipline->input_handler;
4923 init_data.output_handler = card->discipline->output_handler;
4924 init_data.queue_start_poll_array = queue_start_poll;
4925 init_data.int_parm = (unsigned long) card;
4926 init_data.input_sbal_addr_array = (void **) in_sbal_ptrs;
4927 init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
4928 init_data.output_sbal_state_array = card->qdio.out_bufstates;
4929 init_data.scan_threshold =
4930 (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32;
4932 if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
4933 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
4934 rc = qdio_allocate(&init_data);
4936 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
4939 rc = qdio_establish(&init_data);
4941 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
4942 qdio_free(CARD_DDEV(card));
4946 switch (card->options.cq) {
4947 case QETH_CQ_ENABLED:
4948 dev_info(&card->gdev->dev, "Completion Queue support enabled");
4950 case QETH_CQ_DISABLED:
4951 dev_info(&card->gdev->dev, "Completion Queue support disabled");
4957 kfree(out_sbal_ptrs);
4958 out_free_queue_start_poll:
4959 kfree(queue_start_poll);
4961 kfree(in_sbal_ptrs);
4963 kfree(qib_param_field);
4968 static void qeth_core_free_card(struct qeth_card *card)
4971 QETH_DBF_TEXT(SETUP, 2, "freecrd");
4972 QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4973 qeth_clean_channel(&card->read);
4974 qeth_clean_channel(&card->write);
4976 free_netdev(card->dev);
4977 qeth_free_qdio_buffers(card);
4978 unregister_service_level(&card->qeth_service_level);
4982 void qeth_trace_features(struct qeth_card *card)
4984 QETH_CARD_TEXT(card, 2, "features");
4985 QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4));
4986 QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6));
4987 QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp));
4988 QETH_CARD_HEX(card, 2, &card->info.diagass_support,
4989 sizeof(card->info.diagass_support));
4991 EXPORT_SYMBOL_GPL(qeth_trace_features);
4993 static struct ccw_device_id qeth_ids[] = {
4994 {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
4995 .driver_info = QETH_CARD_TYPE_OSD},
4996 {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
4997 .driver_info = QETH_CARD_TYPE_IQD},
4998 {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
4999 .driver_info = QETH_CARD_TYPE_OSN},
5000 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
5001 .driver_info = QETH_CARD_TYPE_OSM},
5002 {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
5003 .driver_info = QETH_CARD_TYPE_OSX},
5006 MODULE_DEVICE_TABLE(ccw, qeth_ids);
5008 static struct ccw_driver qeth_ccw_driver = {
5010 .owner = THIS_MODULE,
5014 .probe = ccwgroup_probe_ccwdev,
5015 .remove = ccwgroup_remove_ccwdev,
5018 int qeth_core_hardsetup_card(struct qeth_card *card)
5023 QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
5024 atomic_set(&card->force_alloc_skb, 0);
5025 qeth_update_from_chp_desc(card);
5028 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
5029 dev_name(&card->gdev->dev));
5030 rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
5031 ccw_device_set_offline(CARD_DDEV(card));
5032 ccw_device_set_offline(CARD_WDEV(card));
5033 ccw_device_set_offline(CARD_RDEV(card));
5034 qdio_free(CARD_DDEV(card));
5035 rc = ccw_device_set_online(CARD_RDEV(card));
5038 rc = ccw_device_set_online(CARD_WDEV(card));
5041 rc = ccw_device_set_online(CARD_DDEV(card));
5045 if (rc == -ERESTARTSYS) {
5046 QETH_DBF_TEXT(SETUP, 2, "break1");
5049 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
5055 qeth_determine_capabilities(card);
5056 qeth_init_tokens(card);
5057 qeth_init_func_level(card);
5058 rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
5059 if (rc == -ERESTARTSYS) {
5060 QETH_DBF_TEXT(SETUP, 2, "break2");
5063 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
5069 rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
5070 if (rc == -ERESTARTSYS) {
5071 QETH_DBF_TEXT(SETUP, 2, "break3");
5074 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
5080 card->read_or_write_problem = 0;
5081 rc = qeth_mpc_initialize(card);
5083 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
5087 rc = qeth_send_startlan(card);
5089 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
5090 if (rc == IPA_RC_LAN_OFFLINE) {
5091 dev_warn(&card->gdev->dev,
5092 "The LAN is offline\n");
5093 card->lan_online = 0;
5099 card->lan_online = 1;
5101 card->options.ipa4.supported_funcs = 0;
5102 card->options.ipa6.supported_funcs = 0;
5103 card->options.adp.supported_funcs = 0;
5104 card->options.sbp.supported_funcs = 0;
5105 card->info.diagass_support = 0;
5106 rc = qeth_query_ipassists(card, QETH_PROT_IPV4);
5109 if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) {
5110 rc = qeth_query_setadapterparms(card);
5112 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
5116 if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) {
5117 rc = qeth_query_setdiagass(card);
5119 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
5125 dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
5126 "an error on the device\n");
5127 QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
5128 dev_name(&card->gdev->dev), rc);
5131 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
5133 static inline int qeth_create_skb_frag(struct qeth_qdio_buffer *qethbuffer,
5134 struct qdio_buffer_element *element,
5135 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
5137 struct page *page = virt_to_page(element->addr);
5138 if (*pskb == NULL) {
5139 if (qethbuffer->rx_skb) {
5140 /* only if qeth_card.options.cq == QETH_CQ_ENABLED */
5141 *pskb = qethbuffer->rx_skb;
5142 qethbuffer->rx_skb = NULL;
5144 *pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
5149 skb_reserve(*pskb, ETH_HLEN);
5150 if (data_len <= QETH_RX_PULL_LEN) {
5151 memcpy(skb_put(*pskb, data_len), element->addr + offset,
5155 memcpy(skb_put(*pskb, QETH_RX_PULL_LEN),
5156 element->addr + offset, QETH_RX_PULL_LEN);
5157 skb_fill_page_desc(*pskb, *pfrag, page,
5158 offset + QETH_RX_PULL_LEN,
5159 data_len - QETH_RX_PULL_LEN);
5160 (*pskb)->data_len += data_len - QETH_RX_PULL_LEN;
5161 (*pskb)->len += data_len - QETH_RX_PULL_LEN;
5162 (*pskb)->truesize += data_len - QETH_RX_PULL_LEN;
5167 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
5168 (*pskb)->data_len += data_len;
5169 (*pskb)->len += data_len;
5170 (*pskb)->truesize += data_len;
5178 static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale)
5180 return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY);
5183 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
5184 struct qeth_qdio_buffer *qethbuffer,
5185 struct qdio_buffer_element **__element, int *__offset,
5186 struct qeth_hdr **hdr)
5188 struct qdio_buffer_element *element = *__element;
5189 struct qdio_buffer *buffer = qethbuffer->buffer;
5190 int offset = *__offset;
5191 struct sk_buff *skb = NULL;
5199 /* qeth_hdr must not cross element boundaries */
5200 if (element->length < offset + sizeof(struct qeth_hdr)) {
5201 if (qeth_is_last_sbale(element))
5205 if (element->length < sizeof(struct qeth_hdr))
5208 *hdr = element->addr + offset;
5210 offset += sizeof(struct qeth_hdr);
5211 switch ((*hdr)->hdr.l2.id) {
5212 case QETH_HEADER_TYPE_LAYER2:
5213 skb_len = (*hdr)->hdr.l2.pkt_length;
5215 case QETH_HEADER_TYPE_LAYER3:
5216 skb_len = (*hdr)->hdr.l3.length;
5217 headroom = ETH_HLEN;
5219 case QETH_HEADER_TYPE_OSN:
5220 skb_len = (*hdr)->hdr.osn.pdu_length;
5221 headroom = sizeof(struct qeth_hdr);
5230 if (((skb_len >= card->options.rx_sg_cb) &&
5231 (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
5232 (!atomic_read(&card->force_alloc_skb))) ||
5233 (card->options.cq == QETH_CQ_ENABLED)) {
5236 skb = dev_alloc_skb(skb_len + headroom);
5240 skb_reserve(skb, headroom);
5243 data_ptr = element->addr + offset;
5245 data_len = min(skb_len, (int)(element->length - offset));
5248 if (qeth_create_skb_frag(qethbuffer, element,
5249 &skb, offset, &frag, data_len))
5252 memcpy(skb_put(skb, data_len), data_ptr,
5256 skb_len -= data_len;
5258 if (qeth_is_last_sbale(element)) {
5259 QETH_CARD_TEXT(card, 4, "unexeob");
5260 QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
5261 dev_kfree_skb_any(skb);
5262 card->stats.rx_errors++;
5267 data_ptr = element->addr;
5272 *__element = element;
5274 if (use_rx_sg && card->options.performance_stats) {
5275 card->perf_stats.sg_skbs_rx++;
5276 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
5280 if (net_ratelimit()) {
5281 QETH_CARD_TEXT(card, 2, "noskbmem");
5283 card->stats.rx_dropped++;
5286 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
5288 int qeth_setassparms_cb(struct qeth_card *card,
5289 struct qeth_reply *reply, unsigned long data)
5291 struct qeth_ipa_cmd *cmd;
5293 QETH_CARD_TEXT(card, 4, "defadpcb");
5295 cmd = (struct qeth_ipa_cmd *) data;
5296 if (cmd->hdr.return_code == 0) {
5297 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5298 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
5299 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5300 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
5301 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5305 EXPORT_SYMBOL_GPL(qeth_setassparms_cb);
5307 struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card,
5308 enum qeth_ipa_funcs ipa_func,
5309 __u16 cmd_code, __u16 len,
5310 enum qeth_prot_versions prot)
5312 struct qeth_cmd_buffer *iob;
5313 struct qeth_ipa_cmd *cmd;
5315 QETH_CARD_TEXT(card, 4, "getasscm");
5316 iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot);
5319 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5320 cmd->data.setassparms.hdr.assist_no = ipa_func;
5321 cmd->data.setassparms.hdr.length = 8 + len;
5322 cmd->data.setassparms.hdr.command_code = cmd_code;
5323 cmd->data.setassparms.hdr.return_code = 0;
5324 cmd->data.setassparms.hdr.seq_no = 0;
5329 EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd);
5331 int qeth_send_setassparms(struct qeth_card *card,
5332 struct qeth_cmd_buffer *iob, __u16 len, long data,
5333 int (*reply_cb)(struct qeth_card *,
5334 struct qeth_reply *, unsigned long),
5338 struct qeth_ipa_cmd *cmd;
5340 QETH_CARD_TEXT(card, 4, "sendassp");
5342 cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5343 if (len <= sizeof(__u32))
5344 cmd->data.setassparms.data.flags_32bit = (__u32) data;
5345 else /* (len > sizeof(__u32)) */
5346 memcpy(&cmd->data.setassparms.data, (void *) data, len);
5348 rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
5351 EXPORT_SYMBOL_GPL(qeth_send_setassparms);
5353 int qeth_send_simple_setassparms(struct qeth_card *card,
5354 enum qeth_ipa_funcs ipa_func,
5355 __u16 cmd_code, long data)
5359 struct qeth_cmd_buffer *iob;
5361 QETH_CARD_TEXT(card, 4, "simassp4");
5363 length = sizeof(__u32);
5364 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5365 length, QETH_PROT_IPV4);
5368 rc = qeth_send_setassparms(card, iob, length, data,
5369 qeth_setassparms_cb, NULL);
5372 EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms);
5374 static void qeth_unregister_dbf_views(void)
5377 for (x = 0; x < QETH_DBF_INFOS; x++) {
5378 debug_unregister(qeth_dbf[x].id);
5379 qeth_dbf[x].id = NULL;
5383 void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
5385 char dbf_txt_buf[32];
5388 if (!debug_level_enabled(id, level))
5390 va_start(args, fmt);
5391 vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
5393 debug_text_event(id, level, dbf_txt_buf);
5395 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
5397 static int qeth_register_dbf_views(void)
5402 for (x = 0; x < QETH_DBF_INFOS; x++) {
5403 /* register the areas */
5404 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
5408 if (qeth_dbf[x].id == NULL) {
5409 qeth_unregister_dbf_views();
5413 /* register a view */
5414 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
5416 qeth_unregister_dbf_views();
5420 /* set a passing level */
5421 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
5427 int qeth_core_load_discipline(struct qeth_card *card,
5428 enum qeth_discipline_id discipline)
5431 mutex_lock(&qeth_mod_mutex);
5432 switch (discipline) {
5433 case QETH_DISCIPLINE_LAYER3:
5434 card->discipline = try_then_request_module(
5435 symbol_get(qeth_l3_discipline), "qeth_l3");
5437 case QETH_DISCIPLINE_LAYER2:
5438 card->discipline = try_then_request_module(
5439 symbol_get(qeth_l2_discipline), "qeth_l2");
5442 if (!card->discipline) {
5443 dev_err(&card->gdev->dev, "There is no kernel module to "
5444 "support discipline %d\n", discipline);
5447 mutex_unlock(&qeth_mod_mutex);
5451 void qeth_core_free_discipline(struct qeth_card *card)
5453 if (card->options.layer2)
5454 symbol_put(qeth_l2_discipline);
5456 symbol_put(qeth_l3_discipline);
5457 card->discipline = NULL;
5460 static const struct device_type qeth_generic_devtype = {
5461 .name = "qeth_generic",
5462 .groups = qeth_generic_attr_groups,
5464 static const struct device_type qeth_osn_devtype = {
5466 .groups = qeth_osn_attr_groups,
5469 #define DBF_NAME_LEN 20
5471 struct qeth_dbf_entry {
5472 char dbf_name[DBF_NAME_LEN];
5473 debug_info_t *dbf_info;
5474 struct list_head dbf_list;
5477 static LIST_HEAD(qeth_dbf_list);
5478 static DEFINE_MUTEX(qeth_dbf_list_mutex);
5480 static debug_info_t *qeth_get_dbf_entry(char *name)
5482 struct qeth_dbf_entry *entry;
5483 debug_info_t *rc = NULL;
5485 mutex_lock(&qeth_dbf_list_mutex);
5486 list_for_each_entry(entry, &qeth_dbf_list, dbf_list) {
5487 if (strcmp(entry->dbf_name, name) == 0) {
5488 rc = entry->dbf_info;
5492 mutex_unlock(&qeth_dbf_list_mutex);
5496 static int qeth_add_dbf_entry(struct qeth_card *card, char *name)
5498 struct qeth_dbf_entry *new_entry;
5500 card->debug = debug_register(name, 2, 1, 8);
5502 QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
5505 if (debug_register_view(card->debug, &debug_hex_ascii_view))
5507 new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL);
5510 strncpy(new_entry->dbf_name, name, DBF_NAME_LEN);
5511 new_entry->dbf_info = card->debug;
5512 mutex_lock(&qeth_dbf_list_mutex);
5513 list_add(&new_entry->dbf_list, &qeth_dbf_list);
5514 mutex_unlock(&qeth_dbf_list_mutex);
5519 debug_unregister(card->debug);
5524 static void qeth_clear_dbf_list(void)
5526 struct qeth_dbf_entry *entry, *tmp;
5528 mutex_lock(&qeth_dbf_list_mutex);
5529 list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) {
5530 list_del(&entry->dbf_list);
5531 debug_unregister(entry->dbf_info);
5534 mutex_unlock(&qeth_dbf_list_mutex);
5537 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
5539 struct qeth_card *card;
5542 unsigned long flags;
5543 char dbf_name[DBF_NAME_LEN];
5545 QETH_DBF_TEXT(SETUP, 2, "probedev");
5548 if (!get_device(dev))
5551 QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
5553 card = qeth_alloc_card();
5555 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
5560 snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
5561 dev_name(&gdev->dev));
5562 card->debug = qeth_get_dbf_entry(dbf_name);
5564 rc = qeth_add_dbf_entry(card, dbf_name);
5569 card->read.ccwdev = gdev->cdev[0];
5570 card->write.ccwdev = gdev->cdev[1];
5571 card->data.ccwdev = gdev->cdev[2];
5572 dev_set_drvdata(&gdev->dev, card);
5574 gdev->cdev[0]->handler = qeth_irq;
5575 gdev->cdev[1]->handler = qeth_irq;
5576 gdev->cdev[2]->handler = qeth_irq;
5578 rc = qeth_determine_card_type(card);
5580 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
5583 rc = qeth_setup_card(card);
5585 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
5589 if (card->info.type == QETH_CARD_TYPE_OSN)
5590 gdev->dev.type = &qeth_osn_devtype;
5592 gdev->dev.type = &qeth_generic_devtype;
5594 switch (card->info.type) {
5595 case QETH_CARD_TYPE_OSN:
5596 case QETH_CARD_TYPE_OSM:
5597 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
5600 rc = card->discipline->setup(card->gdev);
5603 case QETH_CARD_TYPE_OSD:
5604 case QETH_CARD_TYPE_OSX:
5609 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5610 list_add_tail(&card->list, &qeth_core_card_list.list);
5611 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5613 qeth_determine_capabilities(card);
5617 qeth_core_free_discipline(card);
5619 qeth_core_free_card(card);
5625 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
5627 unsigned long flags;
5628 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5630 QETH_DBF_TEXT(SETUP, 2, "removedv");
5632 if (card->discipline) {
5633 card->discipline->remove(gdev);
5634 qeth_core_free_discipline(card);
5637 write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5638 list_del(&card->list);
5639 write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5640 qeth_core_free_card(card);
5641 dev_set_drvdata(&gdev->dev, NULL);
5642 put_device(&gdev->dev);
5646 static int qeth_core_set_online(struct ccwgroup_device *gdev)
5648 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5652 if (!card->discipline) {
5653 if (card->info.type == QETH_CARD_TYPE_IQD)
5654 def_discipline = QETH_DISCIPLINE_LAYER3;
5656 def_discipline = QETH_DISCIPLINE_LAYER2;
5657 rc = qeth_core_load_discipline(card, def_discipline);
5660 rc = card->discipline->setup(card->gdev);
5664 rc = card->discipline->set_online(gdev);
5669 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
5671 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5672 return card->discipline->set_offline(gdev);
5675 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
5677 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5678 if (card->discipline && card->discipline->shutdown)
5679 card->discipline->shutdown(gdev);
5682 static int qeth_core_prepare(struct ccwgroup_device *gdev)
5684 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5685 if (card->discipline && card->discipline->prepare)
5686 return card->discipline->prepare(gdev);
5690 static void qeth_core_complete(struct ccwgroup_device *gdev)
5692 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5693 if (card->discipline && card->discipline->complete)
5694 card->discipline->complete(gdev);
5697 static int qeth_core_freeze(struct ccwgroup_device *gdev)
5699 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5700 if (card->discipline && card->discipline->freeze)
5701 return card->discipline->freeze(gdev);
5705 static int qeth_core_thaw(struct ccwgroup_device *gdev)
5707 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5708 if (card->discipline && card->discipline->thaw)
5709 return card->discipline->thaw(gdev);
5713 static int qeth_core_restore(struct ccwgroup_device *gdev)
5715 struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5716 if (card->discipline && card->discipline->restore)
5717 return card->discipline->restore(gdev);
5721 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
5723 .owner = THIS_MODULE,
5726 .setup = qeth_core_probe_device,
5727 .remove = qeth_core_remove_device,
5728 .set_online = qeth_core_set_online,
5729 .set_offline = qeth_core_set_offline,
5730 .shutdown = qeth_core_shutdown,
5731 .prepare = qeth_core_prepare,
5732 .complete = qeth_core_complete,
5733 .freeze = qeth_core_freeze,
5734 .thaw = qeth_core_thaw,
5735 .restore = qeth_core_restore,
5738 static ssize_t qeth_core_driver_group_store(struct device_driver *ddrv,
5739 const char *buf, size_t count)
5743 err = ccwgroup_create_dev(qeth_core_root_dev,
5744 &qeth_core_ccwgroup_driver, 3, buf);
5746 return err ? err : count;
5748 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
5750 static struct attribute *qeth_drv_attrs[] = {
5751 &driver_attr_group.attr,
5754 static struct attribute_group qeth_drv_attr_group = {
5755 .attrs = qeth_drv_attrs,
5757 static const struct attribute_group *qeth_drv_attr_groups[] = {
5758 &qeth_drv_attr_group,
5763 const char str[ETH_GSTRING_LEN];
5764 } qeth_ethtool_stats_keys[] = {
5769 {"tx skbs no packing"},
5770 {"tx buffers no packing"},
5771 {"tx skbs packing"},
5772 {"tx buffers packing"},
5775 /* 10 */{"rx sg skbs"},
5777 {"rx sg page allocs"},
5778 {"tx large kbytes"},
5780 {"tx pk state ch n->p"},
5781 {"tx pk state ch p->n"},
5782 {"tx pk watermark low"},
5783 {"tx pk watermark high"},
5784 {"queue 0 buffer usage"},
5785 /* 20 */{"queue 1 buffer usage"},
5786 {"queue 2 buffer usage"},
5787 {"queue 3 buffer usage"},
5790 {"rx do_QDIO time"},
5791 {"rx do_QDIO count"},
5792 {"tx handler time"},
5793 {"tx handler count"},
5795 /* 30 */{"tx count"},
5796 {"tx do_QDIO time"},
5797 {"tx do_QDIO count"},
5801 {"cq handler count"},
5805 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
5807 switch (stringset) {
5809 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
5814 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
5816 void qeth_core_get_ethtool_stats(struct net_device *dev,
5817 struct ethtool_stats *stats, u64 *data)
5819 struct qeth_card *card = dev->ml_priv;
5820 data[0] = card->stats.rx_packets -
5821 card->perf_stats.initial_rx_packets;
5822 data[1] = card->perf_stats.bufs_rec;
5823 data[2] = card->stats.tx_packets -
5824 card->perf_stats.initial_tx_packets;
5825 data[3] = card->perf_stats.bufs_sent;
5826 data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
5827 - card->perf_stats.skbs_sent_pack;
5828 data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
5829 data[6] = card->perf_stats.skbs_sent_pack;
5830 data[7] = card->perf_stats.bufs_sent_pack;
5831 data[8] = card->perf_stats.sg_skbs_sent;
5832 data[9] = card->perf_stats.sg_frags_sent;
5833 data[10] = card->perf_stats.sg_skbs_rx;
5834 data[11] = card->perf_stats.sg_frags_rx;
5835 data[12] = card->perf_stats.sg_alloc_page_rx;
5836 data[13] = (card->perf_stats.large_send_bytes >> 10);
5837 data[14] = card->perf_stats.large_send_cnt;
5838 data[15] = card->perf_stats.sc_dp_p;
5839 data[16] = card->perf_stats.sc_p_dp;
5840 data[17] = QETH_LOW_WATERMARK_PACK;
5841 data[18] = QETH_HIGH_WATERMARK_PACK;
5842 data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
5843 data[20] = (card->qdio.no_out_queues > 1) ?
5844 atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
5845 data[21] = (card->qdio.no_out_queues > 2) ?
5846 atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
5847 data[22] = (card->qdio.no_out_queues > 3) ?
5848 atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
5849 data[23] = card->perf_stats.inbound_time;
5850 data[24] = card->perf_stats.inbound_cnt;
5851 data[25] = card->perf_stats.inbound_do_qdio_time;
5852 data[26] = card->perf_stats.inbound_do_qdio_cnt;
5853 data[27] = card->perf_stats.outbound_handler_time;
5854 data[28] = card->perf_stats.outbound_handler_cnt;
5855 data[29] = card->perf_stats.outbound_time;
5856 data[30] = card->perf_stats.outbound_cnt;
5857 data[31] = card->perf_stats.outbound_do_qdio_time;
5858 data[32] = card->perf_stats.outbound_do_qdio_cnt;
5859 data[33] = card->perf_stats.tx_csum;
5860 data[34] = card->perf_stats.tx_lin;
5861 data[35] = card->perf_stats.tx_linfail;
5862 data[36] = card->perf_stats.cq_cnt;
5863 data[37] = card->perf_stats.cq_time;
5865 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
5867 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
5869 switch (stringset) {
5871 memcpy(data, &qeth_ethtool_stats_keys,
5872 sizeof(qeth_ethtool_stats_keys));
5879 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
5881 void qeth_core_get_drvinfo(struct net_device *dev,
5882 struct ethtool_drvinfo *info)
5884 struct qeth_card *card = dev->ml_priv;
5886 strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
5887 sizeof(info->driver));
5888 strlcpy(info->version, "1.0", sizeof(info->version));
5889 strlcpy(info->fw_version, card->info.mcl_level,
5890 sizeof(info->fw_version));
5891 snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
5892 CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
5894 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
5896 /* Helper function to fill 'advertizing' and 'supported' which are the same. */
5897 /* Autoneg and full-duplex are supported and advertized uncondionally. */
5898 /* Always advertize and support all speeds up to specified, and only one */
5899 /* specified port type. */
5900 static void qeth_set_ecmd_adv_sup(struct ethtool_cmd *ecmd,
5901 int maxspeed, int porttype)
5903 int port_sup, port_adv, spd_sup, spd_adv;
5907 port_sup = SUPPORTED_TP;
5908 port_adv = ADVERTISED_TP;
5911 port_sup = SUPPORTED_FIBRE;
5912 port_adv = ADVERTISED_FIBRE;
5915 port_sup = SUPPORTED_TP;
5916 port_adv = ADVERTISED_TP;
5920 /* "Fallthrough" case'es ordered from high to low result in setting */
5921 /* flags cumulatively, starting from the specified speed and down to */
5922 /* the lowest possible. */
5927 spd_sup |= SUPPORTED_10000baseT_Full;
5928 spd_adv |= ADVERTISED_10000baseT_Full;
5930 spd_sup |= SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
5931 spd_adv |= ADVERTISED_1000baseT_Half |
5932 ADVERTISED_1000baseT_Full;
5934 spd_sup |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
5935 spd_adv |= ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
5937 spd_sup |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
5938 spd_adv |= ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
5941 spd_sup = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full;
5942 spd_adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full;
5945 ecmd->advertising = ADVERTISED_Autoneg | port_adv | spd_adv;
5946 ecmd->supported = SUPPORTED_Autoneg | port_sup | spd_sup;
5949 int qeth_core_ethtool_get_settings(struct net_device *netdev,
5950 struct ethtool_cmd *ecmd)
5952 struct qeth_card *card = netdev->ml_priv;
5953 enum qeth_link_types link_type;
5954 struct carrier_info carrier_info;
5958 if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
5959 link_type = QETH_LINK_TYPE_10GBIT_ETH;
5961 link_type = card->info.link_type;
5963 ecmd->transceiver = XCVR_INTERNAL;
5964 ecmd->duplex = DUPLEX_FULL;
5965 ecmd->autoneg = AUTONEG_ENABLE;
5967 switch (link_type) {
5968 case QETH_LINK_TYPE_FAST_ETH:
5969 case QETH_LINK_TYPE_LANE_ETH100:
5970 qeth_set_ecmd_adv_sup(ecmd, SPEED_100, PORT_TP);
5972 ecmd->port = PORT_TP;
5975 case QETH_LINK_TYPE_GBIT_ETH:
5976 case QETH_LINK_TYPE_LANE_ETH1000:
5977 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
5979 ecmd->port = PORT_FIBRE;
5982 case QETH_LINK_TYPE_10GBIT_ETH:
5983 qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
5984 speed = SPEED_10000;
5985 ecmd->port = PORT_FIBRE;
5989 qeth_set_ecmd_adv_sup(ecmd, SPEED_10, PORT_TP);
5991 ecmd->port = PORT_TP;
5993 ethtool_cmd_speed_set(ecmd, speed);
5995 /* Check if we can obtain more accurate information. */
5996 /* If QUERY_CARD_INFO command is not supported or fails, */
5997 /* just return the heuristics that was filled above. */
5998 if (!qeth_card_hw_is_reachable(card))
6000 rc = qeth_query_card_info(card, &carrier_info);
6001 if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */
6003 if (rc) /* report error from the hardware operation */
6005 /* on success, fill in the information got from the hardware */
6008 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
6009 carrier_info.card_type,
6010 carrier_info.port_mode,
6011 carrier_info.port_speed);
6013 /* Update attributes for which we've obtained more authoritative */
6014 /* information, leave the rest the way they where filled above. */
6015 switch (carrier_info.card_type) {
6016 case CARD_INFO_TYPE_1G_COPPER_A:
6017 case CARD_INFO_TYPE_1G_COPPER_B:
6018 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_TP);
6019 ecmd->port = PORT_TP;
6021 case CARD_INFO_TYPE_1G_FIBRE_A:
6022 case CARD_INFO_TYPE_1G_FIBRE_B:
6023 qeth_set_ecmd_adv_sup(ecmd, SPEED_1000, PORT_FIBRE);
6024 ecmd->port = PORT_FIBRE;
6026 case CARD_INFO_TYPE_10G_FIBRE_A:
6027 case CARD_INFO_TYPE_10G_FIBRE_B:
6028 qeth_set_ecmd_adv_sup(ecmd, SPEED_10000, PORT_FIBRE);
6029 ecmd->port = PORT_FIBRE;
6033 switch (carrier_info.port_mode) {
6034 case CARD_INFO_PORTM_FULLDUPLEX:
6035 ecmd->duplex = DUPLEX_FULL;
6037 case CARD_INFO_PORTM_HALFDUPLEX:
6038 ecmd->duplex = DUPLEX_HALF;
6042 switch (carrier_info.port_speed) {
6043 case CARD_INFO_PORTS_10M:
6046 case CARD_INFO_PORTS_100M:
6049 case CARD_INFO_PORTS_1G:
6052 case CARD_INFO_PORTS_10G:
6053 speed = SPEED_10000;
6056 ethtool_cmd_speed_set(ecmd, speed);
6060 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
6062 /* Callback to handle checksum offload command reply from OSA card.
6063 * Verify that required features have been enabled on the card.
6064 * Return error in hdr->return_code as this value is checked by caller.
6066 * Always returns zero to indicate no further messages from the OSA card.
6068 static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card *card,
6069 struct qeth_reply *reply,
6072 struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data;
6073 struct qeth_checksum_cmd *chksum_cb =
6074 (struct qeth_checksum_cmd *)reply->param;
6076 QETH_CARD_TEXT(card, 4, "chkdoccb");
6077 if (cmd->hdr.return_code)
6080 memset(chksum_cb, 0, sizeof(*chksum_cb));
6081 if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6082 chksum_cb->supported =
6083 cmd->data.setassparms.data.chksum.supported;
6084 QETH_CARD_TEXT_(card, 3, "strt:%x", chksum_cb->supported);
6086 if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_ENABLE) {
6087 chksum_cb->supported =
6088 cmd->data.setassparms.data.chksum.supported;
6089 chksum_cb->enabled =
6090 cmd->data.setassparms.data.chksum.enabled;
6091 QETH_CARD_TEXT_(card, 3, "supp:%x", chksum_cb->supported);
6092 QETH_CARD_TEXT_(card, 3, "enab:%x", chksum_cb->enabled);
6097 /* Send command to OSA card and check results. */
6098 static int qeth_ipa_checksum_run_cmd(struct qeth_card *card,
6099 enum qeth_ipa_funcs ipa_func,
6100 __u16 cmd_code, long data,
6101 struct qeth_checksum_cmd *chksum_cb)
6103 struct qeth_cmd_buffer *iob;
6106 QETH_CARD_TEXT(card, 4, "chkdocmd");
6107 iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6108 sizeof(__u32), QETH_PROT_IPV4);
6110 rc = qeth_send_setassparms(card, iob, sizeof(__u32), data,
6111 qeth_ipa_checksum_run_cmd_cb,
6116 static int qeth_send_checksum_on(struct qeth_card *card, int cstype)
6118 const __u32 required_features = QETH_IPA_CHECKSUM_IP_HDR |
6119 QETH_IPA_CHECKSUM_UDP |
6120 QETH_IPA_CHECKSUM_TCP;
6121 struct qeth_checksum_cmd chksum_cb;
6124 rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_START, 0,
6127 if ((required_features & chksum_cb.supported) !=
6130 else if (!(QETH_IPA_CHECKSUM_LP2LP & chksum_cb.supported) &&
6131 cstype == IPA_INBOUND_CHECKSUM)
6132 dev_warn(&card->gdev->dev,
6133 "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n",
6134 QETH_CARD_IFNAME(card));
6137 qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0);
6138 dev_warn(&card->gdev->dev,
6139 "Starting HW checksumming for %s failed, using SW checksumming\n",
6140 QETH_CARD_IFNAME(card));
6143 rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_ENABLE,
6144 chksum_cb.supported, &chksum_cb);
6146 if ((required_features & chksum_cb.enabled) !=
6151 qeth_send_simple_setassparms(card, cstype, IPA_CMD_ASS_STOP, 0);
6152 dev_warn(&card->gdev->dev,
6153 "Enabling HW checksumming for %s failed, using SW checksumming\n",
6154 QETH_CARD_IFNAME(card));
6158 dev_info(&card->gdev->dev, "HW Checksumming (%sbound) enabled\n",
6159 cstype == IPA_INBOUND_CHECKSUM ? "in" : "out");
6163 static int qeth_set_ipa_csum(struct qeth_card *card, int on, int cstype)
6165 int rc = (on) ? qeth_send_checksum_on(card, cstype)
6166 : qeth_send_simple_setassparms(card, cstype,
6167 IPA_CMD_ASS_STOP, 0);
6168 return rc ? -EIO : 0;
6171 static int qeth_set_ipa_tso(struct qeth_card *card, int on)
6175 QETH_CARD_TEXT(card, 3, "sttso");
6178 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6179 IPA_CMD_ASS_START, 0);
6181 dev_warn(&card->gdev->dev,
6182 "Starting outbound TCP segmentation offload for %s failed\n",
6183 QETH_CARD_IFNAME(card));
6186 dev_info(&card->gdev->dev, "Outbound TSO enabled\n");
6188 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6189 IPA_CMD_ASS_STOP, 0);
6194 /* try to restore device features on a device after recovery */
6195 int qeth_recover_features(struct net_device *dev)
6197 struct qeth_card *card = dev->ml_priv;
6198 netdev_features_t recover = dev->features;
6200 if (recover & NETIF_F_IP_CSUM) {
6201 if (qeth_set_ipa_csum(card, 1, IPA_OUTBOUND_CHECKSUM))
6202 recover ^= NETIF_F_IP_CSUM;
6204 if (recover & NETIF_F_RXCSUM) {
6205 if (qeth_set_ipa_csum(card, 1, IPA_INBOUND_CHECKSUM))
6206 recover ^= NETIF_F_RXCSUM;
6208 if (recover & NETIF_F_TSO) {
6209 if (qeth_set_ipa_tso(card, 1))
6210 recover ^= NETIF_F_TSO;
6213 if (recover == dev->features)
6216 dev_warn(&card->gdev->dev,
6217 "Device recovery failed to restore all offload features\n");
6218 dev->features = recover;
6221 EXPORT_SYMBOL_GPL(qeth_recover_features);
6223 int qeth_set_features(struct net_device *dev, netdev_features_t features)
6225 struct qeth_card *card = dev->ml_priv;
6226 netdev_features_t changed = dev->features ^ features;
6229 QETH_DBF_TEXT(SETUP, 2, "setfeat");
6230 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
6232 if ((changed & NETIF_F_IP_CSUM)) {
6233 rc = qeth_set_ipa_csum(card,
6234 features & NETIF_F_IP_CSUM ? 1 : 0,
6235 IPA_OUTBOUND_CHECKSUM);
6237 changed ^= NETIF_F_IP_CSUM;
6239 if ((changed & NETIF_F_RXCSUM)) {
6240 rc = qeth_set_ipa_csum(card,
6241 features & NETIF_F_RXCSUM ? 1 : 0,
6242 IPA_INBOUND_CHECKSUM);
6244 changed ^= NETIF_F_RXCSUM;
6246 if ((changed & NETIF_F_TSO)) {
6247 rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO ? 1 : 0);
6249 changed ^= NETIF_F_TSO;
6252 /* everything changed successfully? */
6253 if ((dev->features ^ features) == changed)
6255 /* something went wrong. save changed features and return error */
6256 dev->features ^= changed;
6259 EXPORT_SYMBOL_GPL(qeth_set_features);
6261 netdev_features_t qeth_fix_features(struct net_device *dev,
6262 netdev_features_t features)
6264 struct qeth_card *card = dev->ml_priv;
6266 QETH_DBF_TEXT(SETUP, 2, "fixfeat");
6267 if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM))
6268 features &= ~NETIF_F_IP_CSUM;
6269 if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM))
6270 features &= ~NETIF_F_RXCSUM;
6271 if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
6272 features &= ~NETIF_F_TSO;
6273 dev_info(&card->gdev->dev, "Outbound TSO not supported on %s\n",
6274 QETH_CARD_IFNAME(card));
6276 /* if the card isn't up, remove features that require hw changes */
6277 if (card->state == CARD_STATE_DOWN ||
6278 card->state == CARD_STATE_RECOVER)
6279 features = features & ~(NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
6281 QETH_DBF_HEX(SETUP, 2, &features, sizeof(features));
6284 EXPORT_SYMBOL_GPL(qeth_fix_features);
6286 static int __init qeth_core_init(void)
6290 pr_info("loading core functions\n");
6291 INIT_LIST_HEAD(&qeth_core_card_list.list);
6292 INIT_LIST_HEAD(&qeth_dbf_list);
6293 rwlock_init(&qeth_core_card_list.rwlock);
6294 mutex_init(&qeth_mod_mutex);
6296 qeth_wq = create_singlethread_workqueue("qeth_wq");
6298 rc = qeth_register_dbf_views();
6301 qeth_core_root_dev = root_device_register("qeth");
6302 rc = PTR_ERR_OR_ZERO(qeth_core_root_dev);
6305 qeth_core_header_cache = kmem_cache_create("qeth_hdr",
6306 sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
6307 if (!qeth_core_header_cache) {
6311 qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf",
6312 sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL);
6313 if (!qeth_qdio_outbuf_cache) {
6317 rc = ccw_driver_register(&qeth_ccw_driver);
6320 qeth_core_ccwgroup_driver.driver.groups = qeth_drv_attr_groups;
6321 rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
6328 ccw_driver_unregister(&qeth_ccw_driver);
6330 kmem_cache_destroy(qeth_qdio_outbuf_cache);
6332 kmem_cache_destroy(qeth_core_header_cache);
6334 root_device_unregister(qeth_core_root_dev);
6336 qeth_unregister_dbf_views();
6338 pr_err("Initializing the qeth device driver failed\n");
6342 static void __exit qeth_core_exit(void)
6344 qeth_clear_dbf_list();
6345 destroy_workqueue(qeth_wq);
6346 ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
6347 ccw_driver_unregister(&qeth_ccw_driver);
6348 kmem_cache_destroy(qeth_qdio_outbuf_cache);
6349 kmem_cache_destroy(qeth_core_header_cache);
6350 root_device_unregister(qeth_core_root_dev);
6351 qeth_unregister_dbf_views();
6352 pr_info("core functions removed\n");
6355 module_init(qeth_core_init);
6356 module_exit(qeth_core_exit);
6357 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
6358 MODULE_DESCRIPTION("qeth core functions");
6359 MODULE_LICENSE("GPL");