1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright IBM Corp. 2007
10 #define KMSG_COMPONENT "qeth"
11 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
13 #include <linux/list.h>
14 #include <linux/rwsem.h>
15 #include <asm/ebcdic.h>
17 #include "qeth_core.h"
19 static ssize_t qeth_dev_state_show(struct device *dev,
20 struct device_attribute *attr, char *buf)
22 struct qeth_card *card = dev_get_drvdata(dev);
24 switch (card->state) {
26 return sprintf(buf, "DOWN\n");
27 case CARD_STATE_SOFTSETUP:
28 if (card->dev->flags & IFF_UP)
29 return sprintf(buf, "UP (LAN %s)\n",
30 netif_carrier_ok(card->dev) ? "ONLINE" :
32 return sprintf(buf, "SOFTSETUP\n");
34 return sprintf(buf, "UNKNOWN\n");
38 static DEVICE_ATTR(state, 0444, qeth_dev_state_show, NULL);
40 static ssize_t qeth_dev_chpid_show(struct device *dev,
41 struct device_attribute *attr, char *buf)
43 struct qeth_card *card = dev_get_drvdata(dev);
45 return sprintf(buf, "%02X\n", card->info.chpid);
48 static DEVICE_ATTR(chpid, 0444, qeth_dev_chpid_show, NULL);
50 static ssize_t qeth_dev_if_name_show(struct device *dev,
51 struct device_attribute *attr, char *buf)
53 struct qeth_card *card = dev_get_drvdata(dev);
55 return sprintf(buf, "%s\n", QETH_CARD_IFNAME(card));
58 static DEVICE_ATTR(if_name, 0444, qeth_dev_if_name_show, NULL);
60 static ssize_t qeth_dev_card_type_show(struct device *dev,
61 struct device_attribute *attr, char *buf)
63 struct qeth_card *card = dev_get_drvdata(dev);
65 return sprintf(buf, "%s\n", qeth_get_cardname_short(card));
68 static DEVICE_ATTR(card_type, 0444, qeth_dev_card_type_show, NULL);
70 static const char *qeth_get_bufsize_str(struct qeth_card *card)
72 if (card->qdio.in_buf_size == 16384)
74 else if (card->qdio.in_buf_size == 24576)
76 else if (card->qdio.in_buf_size == 32768)
78 else if (card->qdio.in_buf_size == 40960)
84 static ssize_t qeth_dev_inbuf_size_show(struct device *dev,
85 struct device_attribute *attr, char *buf)
87 struct qeth_card *card = dev_get_drvdata(dev);
89 return sprintf(buf, "%s\n", qeth_get_bufsize_str(card));
92 static DEVICE_ATTR(inbuf_size, 0444, qeth_dev_inbuf_size_show, NULL);
94 static ssize_t qeth_dev_portno_show(struct device *dev,
95 struct device_attribute *attr, char *buf)
97 struct qeth_card *card = dev_get_drvdata(dev);
99 return sprintf(buf, "%i\n", card->dev->dev_port);
102 static ssize_t qeth_dev_portno_store(struct device *dev,
103 struct device_attribute *attr, const char *buf, size_t count)
105 struct qeth_card *card = dev_get_drvdata(dev);
107 unsigned int portno, limit;
110 mutex_lock(&card->conf_mutex);
111 if (card->state != CARD_STATE_DOWN) {
116 portno = simple_strtoul(buf, &tmp, 16);
117 if (portno > QETH_MAX_PORTNO) {
121 limit = (card->ssqd.pcnt ? card->ssqd.pcnt - 1 : card->ssqd.pcnt);
122 if (portno > limit) {
126 card->dev->dev_port = portno;
128 mutex_unlock(&card->conf_mutex);
129 return rc ? rc : count;
132 static DEVICE_ATTR(portno, 0644, qeth_dev_portno_show, qeth_dev_portno_store);
134 static ssize_t qeth_dev_portname_show(struct device *dev,
135 struct device_attribute *attr, char *buf)
137 return sprintf(buf, "no portname required\n");
140 static ssize_t qeth_dev_portname_store(struct device *dev,
141 struct device_attribute *attr, const char *buf, size_t count)
143 struct qeth_card *card = dev_get_drvdata(dev);
145 dev_warn_once(&card->gdev->dev,
146 "portname is deprecated and is ignored\n");
150 static DEVICE_ATTR(portname, 0644, qeth_dev_portname_show,
151 qeth_dev_portname_store);
153 static ssize_t qeth_dev_prioqing_show(struct device *dev,
154 struct device_attribute *attr, char *buf)
156 struct qeth_card *card = dev_get_drvdata(dev);
158 switch (card->qdio.do_prio_queueing) {
159 case QETH_PRIO_Q_ING_PREC:
160 return sprintf(buf, "%s\n", "by precedence");
161 case QETH_PRIO_Q_ING_TOS:
162 return sprintf(buf, "%s\n", "by type of service");
163 case QETH_PRIO_Q_ING_SKB:
164 return sprintf(buf, "%s\n", "by skb-priority");
165 case QETH_PRIO_Q_ING_VLAN:
166 return sprintf(buf, "%s\n", "by VLAN headers");
168 return sprintf(buf, "always queue %i\n",
169 card->qdio.default_out_queue);
173 static ssize_t qeth_dev_prioqing_store(struct device *dev,
174 struct device_attribute *attr, const char *buf, size_t count)
176 struct qeth_card *card = dev_get_drvdata(dev);
179 if (IS_IQD(card) || IS_VM_NIC(card))
182 mutex_lock(&card->conf_mutex);
183 if (card->state != CARD_STATE_DOWN) {
188 /* check if 1920 devices are supported ,
189 * if though we have to permit priority queueing
191 if (card->qdio.no_out_queues == 1) {
192 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
197 if (sysfs_streq(buf, "prio_queueing_prec")) {
198 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_PREC;
199 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
200 } else if (sysfs_streq(buf, "prio_queueing_skb")) {
201 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_SKB;
202 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
203 } else if (sysfs_streq(buf, "prio_queueing_tos")) {
204 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS;
205 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
206 } else if (sysfs_streq(buf, "prio_queueing_vlan")) {
207 if (IS_LAYER3(card)) {
211 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_VLAN;
212 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
213 } else if (sysfs_streq(buf, "no_prio_queueing:0")) {
214 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_FIXED;
215 card->qdio.default_out_queue = 0;
216 } else if (sysfs_streq(buf, "no_prio_queueing:1")) {
217 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_FIXED;
218 card->qdio.default_out_queue = 1;
219 } else if (sysfs_streq(buf, "no_prio_queueing:2")) {
220 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_FIXED;
221 card->qdio.default_out_queue = 2;
222 } else if (sysfs_streq(buf, "no_prio_queueing:3")) {
223 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_FIXED;
224 card->qdio.default_out_queue = 3;
225 } else if (sysfs_streq(buf, "no_prio_queueing")) {
226 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING;
227 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
231 mutex_unlock(&card->conf_mutex);
232 return rc ? rc : count;
235 static DEVICE_ATTR(priority_queueing, 0644, qeth_dev_prioqing_show,
236 qeth_dev_prioqing_store);
238 static ssize_t qeth_dev_bufcnt_show(struct device *dev,
239 struct device_attribute *attr, char *buf)
241 struct qeth_card *card = dev_get_drvdata(dev);
243 return sprintf(buf, "%i\n", card->qdio.in_buf_pool.buf_count);
246 static ssize_t qeth_dev_bufcnt_store(struct device *dev,
247 struct device_attribute *attr, const char *buf, size_t count)
249 struct qeth_card *card = dev_get_drvdata(dev);
254 mutex_lock(&card->conf_mutex);
255 if (card->state != CARD_STATE_DOWN) {
260 cnt = simple_strtoul(buf, &tmp, 10);
261 cnt = (cnt < QETH_IN_BUF_COUNT_MIN) ? QETH_IN_BUF_COUNT_MIN :
262 ((cnt > QETH_IN_BUF_COUNT_MAX) ? QETH_IN_BUF_COUNT_MAX : cnt);
264 rc = qeth_resize_buffer_pool(card, cnt);
267 mutex_unlock(&card->conf_mutex);
268 return rc ? rc : count;
271 static DEVICE_ATTR(buffer_count, 0644, qeth_dev_bufcnt_show,
272 qeth_dev_bufcnt_store);
274 static ssize_t qeth_dev_recover_store(struct device *dev,
275 struct device_attribute *attr, const char *buf, size_t count)
277 struct qeth_card *card = dev_get_drvdata(dev);
281 rc = kstrtobool(buf, &reset);
285 if (!qeth_card_hw_is_reachable(card))
289 rc = qeth_schedule_recovery(card);
291 return rc ? rc : count;
294 static DEVICE_ATTR(recover, 0200, NULL, qeth_dev_recover_store);
296 static ssize_t qeth_dev_performance_stats_show(struct device *dev,
297 struct device_attribute *attr, char *buf)
299 return sprintf(buf, "1\n");
302 static ssize_t qeth_dev_performance_stats_store(struct device *dev,
303 struct device_attribute *attr, const char *buf, size_t count)
305 struct qeth_card *card = dev_get_drvdata(dev);
306 struct qeth_qdio_out_q *queue;
311 rc = kstrtobool(buf, &reset);
316 memset(&card->stats, 0, sizeof(card->stats));
317 for (i = 0; i < card->qdio.no_out_queues; i++) {
318 queue = card->qdio.out_qs[i];
321 memset(&queue->stats, 0, sizeof(queue->stats));
328 static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show,
329 qeth_dev_performance_stats_store);
331 static ssize_t qeth_dev_layer2_show(struct device *dev,
332 struct device_attribute *attr, char *buf)
334 struct qeth_card *card = dev_get_drvdata(dev);
336 return sprintf(buf, "%i\n", card->options.layer);
339 static ssize_t qeth_dev_layer2_store(struct device *dev,
340 struct device_attribute *attr, const char *buf, size_t count)
342 struct qeth_card *card = dev_get_drvdata(dev);
343 struct net_device *ndev;
346 enum qeth_discipline_id newdis;
348 mutex_lock(&card->discipline_mutex);
349 if (card->state != CARD_STATE_DOWN) {
354 i = simple_strtoul(buf, &tmp, 16);
357 newdis = QETH_DISCIPLINE_LAYER3;
360 newdis = QETH_DISCIPLINE_LAYER2;
367 if (card->options.layer == newdis)
369 if (card->info.layer_enforced) {
370 /* fixed layer, can't switch */
375 if (card->discipline) {
376 /* start with a new, pristine netdevice: */
377 ndev = qeth_clone_netdev(card->dev);
383 card->discipline->remove(card->gdev);
384 qeth_core_free_discipline(card);
385 free_netdev(card->dev);
389 rc = qeth_core_load_discipline(card, newdis);
393 rc = card->discipline->setup(card->gdev);
395 qeth_core_free_discipline(card);
397 mutex_unlock(&card->discipline_mutex);
398 return rc ? rc : count;
401 static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show,
402 qeth_dev_layer2_store);
404 #define ATTR_QETH_ISOLATION_NONE ("none")
405 #define ATTR_QETH_ISOLATION_FWD ("forward")
406 #define ATTR_QETH_ISOLATION_DROP ("drop")
408 static ssize_t qeth_dev_isolation_show(struct device *dev,
409 struct device_attribute *attr, char *buf)
411 struct qeth_card *card = dev_get_drvdata(dev);
413 switch (card->options.isolation) {
414 case ISOLATION_MODE_NONE:
415 return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_NONE);
416 case ISOLATION_MODE_FWD:
417 return snprintf(buf, 9, "%s\n", ATTR_QETH_ISOLATION_FWD);
418 case ISOLATION_MODE_DROP:
419 return snprintf(buf, 6, "%s\n", ATTR_QETH_ISOLATION_DROP);
421 return snprintf(buf, 5, "%s\n", "N/A");
425 static ssize_t qeth_dev_isolation_store(struct device *dev,
426 struct device_attribute *attr, const char *buf, size_t count)
428 struct qeth_card *card = dev_get_drvdata(dev);
429 enum qeth_ipa_isolation_modes isolation;
432 mutex_lock(&card->conf_mutex);
433 if (!IS_OSD(card) && !IS_OSX(card)) {
435 dev_err(&card->gdev->dev, "Adapter does not "
436 "support QDIO data connection isolation\n");
440 /* parse input into isolation mode */
441 if (sysfs_streq(buf, ATTR_QETH_ISOLATION_NONE)) {
442 isolation = ISOLATION_MODE_NONE;
443 } else if (sysfs_streq(buf, ATTR_QETH_ISOLATION_FWD)) {
444 isolation = ISOLATION_MODE_FWD;
445 } else if (sysfs_streq(buf, ATTR_QETH_ISOLATION_DROP)) {
446 isolation = ISOLATION_MODE_DROP;
452 if (qeth_card_hw_is_reachable(card))
453 rc = qeth_setadpparms_set_access_ctrl(card, isolation);
456 WRITE_ONCE(card->options.isolation, isolation);
459 mutex_unlock(&card->conf_mutex);
461 return rc ? rc : count;
464 static DEVICE_ATTR(isolation, 0644, qeth_dev_isolation_show,
465 qeth_dev_isolation_store);
467 static ssize_t qeth_dev_switch_attrs_show(struct device *dev,
468 struct device_attribute *attr, char *buf)
470 struct qeth_card *card = dev_get_drvdata(dev);
471 struct qeth_switch_info sw_info;
474 if (!qeth_card_hw_is_reachable(card))
475 return sprintf(buf, "n/a\n");
477 rc = qeth_query_switch_attributes(card, &sw_info);
481 if (!sw_info.capabilities)
482 rc = sprintf(buf, "unknown");
484 if (sw_info.capabilities & QETH_SWITCH_FORW_802_1)
485 rc = sprintf(buf, (sw_info.settings & QETH_SWITCH_FORW_802_1 ?
486 "[802.1]" : "802.1"));
487 if (sw_info.capabilities & QETH_SWITCH_FORW_REFL_RELAY)
488 rc += sprintf(buf + rc,
489 (sw_info.settings & QETH_SWITCH_FORW_REFL_RELAY ?
491 rc += sprintf(buf + rc, "\n");
496 static DEVICE_ATTR(switch_attrs, 0444,
497 qeth_dev_switch_attrs_show, NULL);
499 static ssize_t qeth_hw_trap_show(struct device *dev,
500 struct device_attribute *attr, char *buf)
502 struct qeth_card *card = dev_get_drvdata(dev);
504 if (card->info.hwtrap)
505 return snprintf(buf, 5, "arm\n");
507 return snprintf(buf, 8, "disarm\n");
510 static ssize_t qeth_hw_trap_store(struct device *dev,
511 struct device_attribute *attr, const char *buf, size_t count)
513 struct qeth_card *card = dev_get_drvdata(dev);
517 mutex_lock(&card->conf_mutex);
518 if (qeth_card_hw_is_reachable(card))
521 if (sysfs_streq(buf, "arm") && !card->info.hwtrap) {
523 if (qeth_is_diagass_supported(card,
524 QETH_DIAGS_CMD_TRAP)) {
525 rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM);
527 card->info.hwtrap = 1;
531 card->info.hwtrap = 1;
532 } else if (sysfs_streq(buf, "disarm") && card->info.hwtrap) {
534 rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
536 card->info.hwtrap = 0;
538 card->info.hwtrap = 0;
539 } else if (sysfs_streq(buf, "trap") && state && card->info.hwtrap)
540 rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_CAPTURE);
544 mutex_unlock(&card->conf_mutex);
545 return rc ? rc : count;
548 static DEVICE_ATTR(hw_trap, 0644, qeth_hw_trap_show,
551 static ssize_t qeth_dev_blkt_store(struct qeth_card *card,
552 const char *buf, size_t count, int *value, int max_value)
557 mutex_lock(&card->conf_mutex);
558 if (card->state != CARD_STATE_DOWN) {
562 i = simple_strtoul(buf, &tmp, 10);
568 mutex_unlock(&card->conf_mutex);
569 return rc ? rc : count;
572 static ssize_t qeth_dev_blkt_total_show(struct device *dev,
573 struct device_attribute *attr, char *buf)
575 struct qeth_card *card = dev_get_drvdata(dev);
577 return sprintf(buf, "%i\n", card->info.blkt.time_total);
580 static ssize_t qeth_dev_blkt_total_store(struct device *dev,
581 struct device_attribute *attr, const char *buf, size_t count)
583 struct qeth_card *card = dev_get_drvdata(dev);
585 return qeth_dev_blkt_store(card, buf, count,
586 &card->info.blkt.time_total, 5000);
589 static DEVICE_ATTR(total, 0644, qeth_dev_blkt_total_show,
590 qeth_dev_blkt_total_store);
592 static ssize_t qeth_dev_blkt_inter_show(struct device *dev,
593 struct device_attribute *attr, char *buf)
595 struct qeth_card *card = dev_get_drvdata(dev);
597 return sprintf(buf, "%i\n", card->info.blkt.inter_packet);
600 static ssize_t qeth_dev_blkt_inter_store(struct device *dev,
601 struct device_attribute *attr, const char *buf, size_t count)
603 struct qeth_card *card = dev_get_drvdata(dev);
605 return qeth_dev_blkt_store(card, buf, count,
606 &card->info.blkt.inter_packet, 1000);
609 static DEVICE_ATTR(inter, 0644, qeth_dev_blkt_inter_show,
610 qeth_dev_blkt_inter_store);
612 static ssize_t qeth_dev_blkt_inter_jumbo_show(struct device *dev,
613 struct device_attribute *attr, char *buf)
615 struct qeth_card *card = dev_get_drvdata(dev);
617 return sprintf(buf, "%i\n", card->info.blkt.inter_packet_jumbo);
620 static ssize_t qeth_dev_blkt_inter_jumbo_store(struct device *dev,
621 struct device_attribute *attr, const char *buf, size_t count)
623 struct qeth_card *card = dev_get_drvdata(dev);
625 return qeth_dev_blkt_store(card, buf, count,
626 &card->info.blkt.inter_packet_jumbo, 1000);
629 static DEVICE_ATTR(inter_jumbo, 0644, qeth_dev_blkt_inter_jumbo_show,
630 qeth_dev_blkt_inter_jumbo_store);
632 static struct attribute *qeth_blkt_device_attrs[] = {
633 &dev_attr_total.attr,
634 &dev_attr_inter.attr,
635 &dev_attr_inter_jumbo.attr,
638 const struct attribute_group qeth_device_blkt_group = {
640 .attrs = qeth_blkt_device_attrs,
642 EXPORT_SYMBOL_GPL(qeth_device_blkt_group);
644 static struct attribute *qeth_device_attrs[] = {
645 &dev_attr_state.attr,
646 &dev_attr_chpid.attr,
647 &dev_attr_if_name.attr,
648 &dev_attr_card_type.attr,
649 &dev_attr_inbuf_size.attr,
650 &dev_attr_portno.attr,
651 &dev_attr_portname.attr,
652 &dev_attr_priority_queueing.attr,
653 &dev_attr_buffer_count.attr,
654 &dev_attr_recover.attr,
655 &dev_attr_performance_stats.attr,
656 &dev_attr_layer2.attr,
657 &dev_attr_isolation.attr,
658 &dev_attr_hw_trap.attr,
659 &dev_attr_switch_attrs.attr,
662 const struct attribute_group qeth_device_attr_group = {
663 .attrs = qeth_device_attrs,
665 EXPORT_SYMBOL_GPL(qeth_device_attr_group);
667 const struct attribute_group *qeth_generic_attr_groups[] = {
668 &qeth_device_attr_group,
669 &qeth_device_blkt_group,
673 static struct attribute *qeth_osn_device_attrs[] = {
674 &dev_attr_state.attr,
675 &dev_attr_chpid.attr,
676 &dev_attr_if_name.attr,
677 &dev_attr_card_type.attr,
678 &dev_attr_buffer_count.attr,
679 &dev_attr_recover.attr,
682 static struct attribute_group qeth_osn_device_attr_group = {
683 .attrs = qeth_osn_device_attrs,
685 const struct attribute_group *qeth_osn_attr_groups[] = {
686 &qeth_osn_device_attr_group,