1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright IBM Corp. 2007 4 * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, 5 * Frank Pavlic <fpavlic@de.ibm.com>, 6 * Thomas Spatzier <tspat@de.ibm.com>, 7 * Frank Blaschka <frank.blaschka@de.ibm.com> 8 */ 9 10#define KMSG_COMPONENT "qeth" 11#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 12 13#include <linux/list.h> 14#include <linux/rwsem.h> 15#include <asm/ebcdic.h> 16 17#include "qeth_core.h" 18 19static ssize_t qeth_dev_state_show(struct device *dev, 20 struct device_attribute *attr, char *buf) 21{ 22 struct qeth_card *card = dev_get_drvdata(dev); 23 24 switch (card->state) { 25 case CARD_STATE_DOWN: 26 return sysfs_emit(buf, "DOWN\n"); 27 case CARD_STATE_SOFTSETUP: 28 if (card->dev->flags & IFF_UP) 29 return sysfs_emit(buf, "UP (LAN %s)\n", 30 netif_carrier_ok(card->dev) ? 31 "ONLINE" : "OFFLINE"); 32 return sysfs_emit(buf, "SOFTSETUP\n"); 33 default: 34 return sysfs_emit(buf, "UNKNOWN\n"); 35 } 36} 37 38static DEVICE_ATTR(state, 0444, qeth_dev_state_show, NULL); 39 40static ssize_t qeth_dev_chpid_show(struct device *dev, 41 struct device_attribute *attr, char *buf) 42{ 43 struct qeth_card *card = dev_get_drvdata(dev); 44 45 return sysfs_emit(buf, "%02X\n", card->info.chpid); 46} 47 48static DEVICE_ATTR(chpid, 0444, qeth_dev_chpid_show, NULL); 49 50static ssize_t qeth_dev_if_name_show(struct device *dev, 51 struct device_attribute *attr, char *buf) 52{ 53 struct qeth_card *card = dev_get_drvdata(dev); 54 55 return sysfs_emit(buf, "%s\n", netdev_name(card->dev)); 56} 57 58static DEVICE_ATTR(if_name, 0444, qeth_dev_if_name_show, NULL); 59 60static ssize_t qeth_dev_card_type_show(struct device *dev, 61 struct device_attribute *attr, char *buf) 62{ 63 struct qeth_card *card = dev_get_drvdata(dev); 64 65 return sysfs_emit(buf, "%s\n", qeth_get_cardname_short(card)); 66} 67 68static DEVICE_ATTR(card_type, 0444, qeth_dev_card_type_show, NULL); 69 70static const char *qeth_get_bufsize_str(struct qeth_card *card) 71{ 72 if (card->qdio.in_buf_size == 16384) 73 return "16k"; 74 else if (card->qdio.in_buf_size == 24576) 75 return "24k"; 76 else if (card->qdio.in_buf_size == 32768) 77 return "32k"; 78 else if (card->qdio.in_buf_size == 40960) 79 return "40k"; 80 else 81 return "64k"; 82} 83 84static ssize_t qeth_dev_inbuf_size_show(struct device *dev, 85 struct device_attribute *attr, char *buf) 86{ 87 struct qeth_card *card = dev_get_drvdata(dev); 88 89 return sysfs_emit(buf, "%s\n", qeth_get_bufsize_str(card)); 90} 91 92static DEVICE_ATTR(inbuf_size, 0444, qeth_dev_inbuf_size_show, NULL); 93 94static ssize_t qeth_dev_portno_show(struct device *dev, 95 struct device_attribute *attr, char *buf) 96{ 97 struct qeth_card *card = dev_get_drvdata(dev); 98 99 return sysfs_emit(buf, "%i\n", card->dev->dev_port); 100} 101 102static ssize_t qeth_dev_portno_store(struct device *dev, 103 struct device_attribute *attr, const char *buf, size_t count) 104{ 105 struct qeth_card *card = dev_get_drvdata(dev); 106 unsigned int portno, limit; 107 int rc = 0; 108 109 rc = kstrtouint(buf, 16, &portno); 110 if (rc) 111 return rc; 112 if (portno > QETH_MAX_PORTNO) 113 return -EINVAL; 114 115 mutex_lock(&card->conf_mutex); 116 if (card->state != CARD_STATE_DOWN) { 117 rc = -EPERM; 118 goto out; 119 } 120 121 limit = (card->ssqd.pcnt ? card->ssqd.pcnt - 1 : card->ssqd.pcnt); 122 if (portno > limit) { 123 rc = -EINVAL; 124 goto out; 125 } 126 card->dev->dev_port = portno; 127out: 128 mutex_unlock(&card->conf_mutex); 129 return rc ? rc : count; 130} 131 132static DEVICE_ATTR(portno, 0644, qeth_dev_portno_show, qeth_dev_portno_store); 133 134static ssize_t qeth_dev_portname_show(struct device *dev, 135 struct device_attribute *attr, char *buf) 136{ 137 return sysfs_emit(buf, "no portname required\n"); 138} 139 140static ssize_t qeth_dev_portname_store(struct device *dev, 141 struct device_attribute *attr, const char *buf, size_t count) 142{ 143 struct qeth_card *card = dev_get_drvdata(dev); 144 145 dev_warn_once(&card->gdev->dev, 146 "portname is deprecated and is ignored\n"); 147 return count; 148} 149 150static DEVICE_ATTR(portname, 0644, qeth_dev_portname_show, 151 qeth_dev_portname_store); 152 153static ssize_t qeth_dev_prioqing_show(struct device *dev, 154 struct device_attribute *attr, char *buf) 155{ 156 struct qeth_card *card = dev_get_drvdata(dev); 157 158 switch (card->qdio.do_prio_queueing) { 159 case QETH_PRIO_Q_ING_PREC: 160 return sysfs_emit(buf, "%s\n", "by precedence"); 161 case QETH_PRIO_Q_ING_TOS: 162 return sysfs_emit(buf, "%s\n", "by type of service"); 163 case QETH_PRIO_Q_ING_SKB: 164 return sysfs_emit(buf, "%s\n", "by skb-priority"); 165 case QETH_PRIO_Q_ING_VLAN: 166 return sysfs_emit(buf, "%s\n", "by VLAN headers"); 167 case QETH_PRIO_Q_ING_FIXED: 168 return sysfs_emit(buf, "always queue %i\n", 169 card->qdio.default_out_queue); 170 default: 171 return sysfs_emit(buf, "disabled\n"); 172 } 173} 174 175static ssize_t qeth_dev_prioqing_store(struct device *dev, 176 struct device_attribute *attr, const char *buf, size_t count) 177{ 178 struct qeth_card *card = dev_get_drvdata(dev); 179 int rc = 0; 180 181 if (IS_IQD(card) || IS_VM_NIC(card)) 182 return -EOPNOTSUPP; 183 184 mutex_lock(&card->conf_mutex); 185 if (card->state != CARD_STATE_DOWN) { 186 rc = -EPERM; 187 goto out; 188 } 189 190 /* check if 1920 devices are supported , 191 * if though we have to permit priority queueing 192 */ 193 if (card->qdio.no_out_queues == 1) { 194 card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; 195 rc = -EPERM; 196 goto out; 197 } 198 199 if (sysfs_streq(buf, "prio_queueing_prec")) { 200 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_PREC; 201 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 202 } else if (sysfs_streq(buf, "prio_queueing_skb")) { 203 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_SKB; 204 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 205 } else if (sysfs_streq(buf, "prio_queueing_tos")) { 206 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS; 207 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 208 } else if (sysfs_streq(buf, "prio_queueing_vlan")) { 209 if (IS_LAYER3(card)) { 210 rc = -EOPNOTSUPP; 211 goto out; 212 } 213 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_VLAN; 214 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 215 } else if (sysfs_streq(buf, "no_prio_queueing:0")) { 216 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_FIXED; 217 card->qdio.default_out_queue = 0; 218 } else if (sysfs_streq(buf, "no_prio_queueing:1")) { 219 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_FIXED; 220 card->qdio.default_out_queue = 1; 221 } else if (sysfs_streq(buf, "no_prio_queueing:2")) { 222 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_FIXED; 223 card->qdio.default_out_queue = 2; 224 } else if (sysfs_streq(buf, "no_prio_queueing:3")) { 225 card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_FIXED; 226 card->qdio.default_out_queue = 3; 227 } else if (sysfs_streq(buf, "no_prio_queueing")) { 228 card->qdio.do_prio_queueing = QETH_NO_PRIO_QUEUEING; 229 card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 230 } else 231 rc = -EINVAL; 232out: 233 mutex_unlock(&card->conf_mutex); 234 return rc ? rc : count; 235} 236 237static DEVICE_ATTR(priority_queueing, 0644, qeth_dev_prioqing_show, 238 qeth_dev_prioqing_store); 239 240static ssize_t qeth_dev_bufcnt_show(struct device *dev, 241 struct device_attribute *attr, char *buf) 242{ 243 struct qeth_card *card = dev_get_drvdata(dev); 244 245 return sysfs_emit(buf, "%i\n", card->qdio.in_buf_pool.buf_count); 246} 247 248static ssize_t qeth_dev_bufcnt_store(struct device *dev, 249 struct device_attribute *attr, const char *buf, size_t count) 250{ 251 struct qeth_card *card = dev_get_drvdata(dev); 252 unsigned int cnt; 253 int rc = 0; 254 255 rc = kstrtouint(buf, 10, &cnt); 256 if (rc) 257 return rc; 258 259 mutex_lock(&card->conf_mutex); 260 if (card->state != CARD_STATE_DOWN) { 261 rc = -EPERM; 262 goto out; 263 } 264 265 cnt = clamp(cnt, QETH_IN_BUF_COUNT_MIN, QETH_IN_BUF_COUNT_MAX); 266 rc = qeth_resize_buffer_pool(card, cnt); 267 268out: 269 mutex_unlock(&card->conf_mutex); 270 return rc ? rc : count; 271} 272 273static DEVICE_ATTR(buffer_count, 0644, qeth_dev_bufcnt_show, 274 qeth_dev_bufcnt_store); 275 276static ssize_t qeth_dev_recover_store(struct device *dev, 277 struct device_attribute *attr, const char *buf, size_t count) 278{ 279 struct qeth_card *card = dev_get_drvdata(dev); 280 bool reset; 281 int rc; 282 283 rc = kstrtobool(buf, &reset); 284 if (rc) 285 return rc; 286 287 if (!qeth_card_hw_is_reachable(card)) 288 return -EPERM; 289 290 if (reset) 291 rc = qeth_schedule_recovery(card); 292 293 return rc ? rc : count; 294} 295 296static DEVICE_ATTR(recover, 0200, NULL, qeth_dev_recover_store); 297 298static ssize_t qeth_dev_performance_stats_show(struct device *dev, 299 struct device_attribute *attr, char *buf) 300{ 301 return sysfs_emit(buf, "1\n"); 302} 303 304static ssize_t qeth_dev_performance_stats_store(struct device *dev, 305 struct device_attribute *attr, const char *buf, size_t count) 306{ 307 struct qeth_card *card = dev_get_drvdata(dev); 308 struct qeth_qdio_out_q *queue; 309 unsigned int i; 310 bool reset; 311 int rc; 312 313 rc = kstrtobool(buf, &reset); 314 if (rc) 315 return rc; 316 317 if (reset) { 318 memset(&card->stats, 0, sizeof(card->stats)); 319 for (i = 0; i < card->qdio.no_out_queues; i++) { 320 queue = card->qdio.out_qs[i]; 321 if (!queue) 322 break; 323 memset(&queue->stats, 0, sizeof(queue->stats)); 324 } 325 } 326 327 return count; 328} 329 330static DEVICE_ATTR(performance_stats, 0644, qeth_dev_performance_stats_show, 331 qeth_dev_performance_stats_store); 332 333static ssize_t qeth_dev_layer2_show(struct device *dev, 334 struct device_attribute *attr, char *buf) 335{ 336 struct qeth_card *card = dev_get_drvdata(dev); 337 338 return sysfs_emit(buf, "%i\n", card->options.layer); 339} 340 341static ssize_t qeth_dev_layer2_store(struct device *dev, 342 struct device_attribute *attr, const char *buf, size_t count) 343{ 344 struct qeth_card *card = dev_get_drvdata(dev); 345 struct net_device *ndev; 346 enum qeth_discipline_id newdis; 347 unsigned int input; 348 int rc; 349 350 rc = kstrtouint(buf, 16, &input); 351 if (rc) 352 return rc; 353 354 switch (input) { 355 case 0: 356 newdis = QETH_DISCIPLINE_LAYER3; 357 break; 358 case 1: 359 newdis = QETH_DISCIPLINE_LAYER2; 360 break; 361 default: 362 return -EINVAL; 363 } 364 365 mutex_lock(&card->discipline_mutex); 366 if (card->state != CARD_STATE_DOWN) { 367 rc = -EPERM; 368 goto out; 369 } 370 371 if (card->options.layer == newdis) 372 goto out; 373 if (card->info.layer_enforced) { 374 /* fixed layer, can't switch */ 375 rc = -EOPNOTSUPP; 376 goto out; 377 } 378 379 if (card->discipline) { 380 /* start with a new, pristine netdevice: */ 381 ndev = qeth_clone_netdev(card->dev); 382 if (!ndev) { 383 rc = -ENOMEM; 384 goto out; 385 } 386 387 qeth_remove_discipline(card); 388 free_netdev(card->dev); 389 card->dev = ndev; 390 } 391 392 rc = qeth_setup_discipline(card, newdis); 393 394out: 395 mutex_unlock(&card->discipline_mutex); 396 return rc ? rc : count; 397} 398 399static DEVICE_ATTR(layer2, 0644, qeth_dev_layer2_show, 400 qeth_dev_layer2_store); 401 402#define ATTR_QETH_ISOLATION_NONE ("none") 403#define ATTR_QETH_ISOLATION_FWD ("forward") 404#define ATTR_QETH_ISOLATION_DROP ("drop") 405 406static ssize_t qeth_dev_isolation_show(struct device *dev, 407 struct device_attribute *attr, char *buf) 408{ 409 struct qeth_card *card = dev_get_drvdata(dev); 410 411 switch (card->options.isolation) { 412 case ISOLATION_MODE_NONE: 413 return sysfs_emit(buf, "%s\n", ATTR_QETH_ISOLATION_NONE); 414 case ISOLATION_MODE_FWD: 415 return sysfs_emit(buf, "%s\n", ATTR_QETH_ISOLATION_FWD); 416 case ISOLATION_MODE_DROP: 417 return sysfs_emit(buf, "%s\n", ATTR_QETH_ISOLATION_DROP); 418 default: 419 return sysfs_emit(buf, "%s\n", "N/A"); 420 } 421} 422 423static ssize_t qeth_dev_isolation_store(struct device *dev, 424 struct device_attribute *attr, const char *buf, size_t count) 425{ 426 struct qeth_card *card = dev_get_drvdata(dev); 427 enum qeth_ipa_isolation_modes isolation; 428 int rc = 0; 429 430 mutex_lock(&card->conf_mutex); 431 if (!IS_OSD(card) && !IS_OSX(card)) { 432 rc = -EOPNOTSUPP; 433 dev_err(&card->gdev->dev, "Adapter does not " 434 "support QDIO data connection isolation\n"); 435 goto out; 436 } 437 438 /* parse input into isolation mode */ 439 if (sysfs_streq(buf, ATTR_QETH_ISOLATION_NONE)) { 440 isolation = ISOLATION_MODE_NONE; 441 } else if (sysfs_streq(buf, ATTR_QETH_ISOLATION_FWD)) { 442 isolation = ISOLATION_MODE_FWD; 443 } else if (sysfs_streq(buf, ATTR_QETH_ISOLATION_DROP)) { 444 isolation = ISOLATION_MODE_DROP; 445 } else { 446 rc = -EINVAL; 447 goto out; 448 } 449 450 if (qeth_card_hw_is_reachable(card)) 451 rc = qeth_setadpparms_set_access_ctrl(card, isolation); 452 453 if (!rc) 454 WRITE_ONCE(card->options.isolation, isolation); 455 456out: 457 mutex_unlock(&card->conf_mutex); 458 459 return rc ? rc : count; 460} 461 462static DEVICE_ATTR(isolation, 0644, qeth_dev_isolation_show, 463 qeth_dev_isolation_store); 464 465static ssize_t qeth_dev_switch_attrs_show(struct device *dev, 466 struct device_attribute *attr, char *buf) 467{ 468 struct qeth_card *card = dev_get_drvdata(dev); 469 struct qeth_switch_info sw_info; 470 int rc = 0; 471 472 if (!qeth_card_hw_is_reachable(card)) 473 return sysfs_emit(buf, "n/a\n"); 474 475 rc = qeth_query_switch_attributes(card, &sw_info); 476 if (rc) 477 return rc; 478 479 if (!sw_info.capabilities) 480 rc = sysfs_emit(buf, "unknown"); 481 482 if (sw_info.capabilities & QETH_SWITCH_FORW_802_1) 483 rc = sysfs_emit(buf, 484 (sw_info.settings & QETH_SWITCH_FORW_802_1 ? 485 "[802.1]" : "802.1")); 486 if (sw_info.capabilities & QETH_SWITCH_FORW_REFL_RELAY) 487 rc += sysfs_emit_at(buf, rc, 488 (sw_info.settings & 489 QETH_SWITCH_FORW_REFL_RELAY ? 490 " [rr]" : " rr")); 491 rc += sysfs_emit_at(buf, rc, "\n"); 492 493 return rc; 494} 495 496static DEVICE_ATTR(switch_attrs, 0444, 497 qeth_dev_switch_attrs_show, NULL); 498 499static ssize_t qeth_hw_trap_show(struct device *dev, 500 struct device_attribute *attr, char *buf) 501{ 502 struct qeth_card *card = dev_get_drvdata(dev); 503 504 if (card->info.hwtrap) 505 return sysfs_emit(buf, "arm\n"); 506 else 507 return sysfs_emit(buf, "disarm\n"); 508} 509 510static ssize_t qeth_hw_trap_store(struct device *dev, 511 struct device_attribute *attr, const char *buf, size_t count) 512{ 513 struct qeth_card *card = dev_get_drvdata(dev); 514 int rc = 0; 515 int state = 0; 516 517 mutex_lock(&card->conf_mutex); 518 if (qeth_card_hw_is_reachable(card)) 519 state = 1; 520 521 if (sysfs_streq(buf, "arm") && !card->info.hwtrap) { 522 if (state) { 523 if (qeth_is_diagass_supported(card, 524 QETH_DIAGS_CMD_TRAP)) { 525 rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_ARM); 526 if (!rc) 527 card->info.hwtrap = 1; 528 } else 529 rc = -EINVAL; 530 } else 531 card->info.hwtrap = 1; 532 } else if (sysfs_streq(buf, "disarm") && card->info.hwtrap) { 533 if (state) { 534 rc = qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 535 if (!rc) 536 card->info.hwtrap = 0; 537 } else 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); 541 else 542 rc = -EINVAL; 543 544 mutex_unlock(&card->conf_mutex); 545 return rc ? rc : count; 546} 547 548static DEVICE_ATTR(hw_trap, 0644, qeth_hw_trap_show, 549 qeth_hw_trap_store); 550 551static ssize_t qeth_dev_blkt_store(struct qeth_card *card, 552 const char *buf, size_t count, int *value, int max_value) 553{ 554 unsigned int input; 555 int rc; 556 557 rc = kstrtouint(buf, 10, &input); 558 if (rc) 559 return rc; 560 561 if (input > max_value) 562 return -EINVAL; 563 564 mutex_lock(&card->conf_mutex); 565 if (card->state != CARD_STATE_DOWN) 566 rc = -EPERM; 567 else 568 *value = input; 569 mutex_unlock(&card->conf_mutex); 570 return rc ? rc : count; 571} 572 573static ssize_t qeth_dev_blkt_total_show(struct device *dev, 574 struct device_attribute *attr, char *buf) 575{ 576 struct qeth_card *card = dev_get_drvdata(dev); 577 578 return sysfs_emit(buf, "%i\n", card->info.blkt.time_total); 579} 580 581static ssize_t qeth_dev_blkt_total_store(struct device *dev, 582 struct device_attribute *attr, const char *buf, size_t count) 583{ 584 struct qeth_card *card = dev_get_drvdata(dev); 585 586 return qeth_dev_blkt_store(card, buf, count, 587 &card->info.blkt.time_total, 5000); 588} 589 590static DEVICE_ATTR(total, 0644, qeth_dev_blkt_total_show, 591 qeth_dev_blkt_total_store); 592 593static ssize_t qeth_dev_blkt_inter_show(struct device *dev, 594 struct device_attribute *attr, char *buf) 595{ 596 struct qeth_card *card = dev_get_drvdata(dev); 597 598 return sysfs_emit(buf, "%i\n", card->info.blkt.inter_packet); 599} 600 601static ssize_t qeth_dev_blkt_inter_store(struct device *dev, 602 struct device_attribute *attr, const char *buf, size_t count) 603{ 604 struct qeth_card *card = dev_get_drvdata(dev); 605 606 return qeth_dev_blkt_store(card, buf, count, 607 &card->info.blkt.inter_packet, 1000); 608} 609 610static DEVICE_ATTR(inter, 0644, qeth_dev_blkt_inter_show, 611 qeth_dev_blkt_inter_store); 612 613static ssize_t qeth_dev_blkt_inter_jumbo_show(struct device *dev, 614 struct device_attribute *attr, char *buf) 615{ 616 struct qeth_card *card = dev_get_drvdata(dev); 617 618 return sysfs_emit(buf, "%i\n", card->info.blkt.inter_packet_jumbo); 619} 620 621static ssize_t qeth_dev_blkt_inter_jumbo_store(struct device *dev, 622 struct device_attribute *attr, const char *buf, size_t count) 623{ 624 struct qeth_card *card = dev_get_drvdata(dev); 625 626 return qeth_dev_blkt_store(card, buf, count, 627 &card->info.blkt.inter_packet_jumbo, 1000); 628} 629 630static DEVICE_ATTR(inter_jumbo, 0644, qeth_dev_blkt_inter_jumbo_show, 631 qeth_dev_blkt_inter_jumbo_store); 632 633static struct attribute *qeth_blkt_device_attrs[] = { 634 &dev_attr_total.attr, 635 &dev_attr_inter.attr, 636 &dev_attr_inter_jumbo.attr, 637 NULL, 638}; 639 640static const struct attribute_group qeth_dev_blkt_group = { 641 .name = "blkt", 642 .attrs = qeth_blkt_device_attrs, 643}; 644 645static struct attribute *qeth_dev_extended_attrs[] = { 646 &dev_attr_inbuf_size.attr, 647 &dev_attr_portno.attr, 648 &dev_attr_portname.attr, 649 &dev_attr_priority_queueing.attr, 650 &dev_attr_performance_stats.attr, 651 &dev_attr_layer2.attr, 652 &dev_attr_isolation.attr, 653 &dev_attr_hw_trap.attr, 654 &dev_attr_switch_attrs.attr, 655 NULL, 656}; 657 658static const struct attribute_group qeth_dev_extended_group = { 659 .attrs = qeth_dev_extended_attrs, 660}; 661 662static struct attribute *qeth_dev_attrs[] = { 663 &dev_attr_state.attr, 664 &dev_attr_chpid.attr, 665 &dev_attr_if_name.attr, 666 &dev_attr_card_type.attr, 667 &dev_attr_buffer_count.attr, 668 &dev_attr_recover.attr, 669 NULL, 670}; 671 672static const struct attribute_group qeth_dev_group = { 673 .attrs = qeth_dev_attrs, 674}; 675 676const struct attribute_group *qeth_dev_groups[] = { 677 &qeth_dev_group, 678 &qeth_dev_extended_group, 679 &qeth_dev_blkt_group, 680 NULL, 681}; 682