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67#include <linux/blkdev.h>
68#include <linux/capability.h>
69#include <linux/ctype.h>
70#include <linux/device.h>
71#include <linux/err.h>
72#include <linux/init.h>
73#include <linux/iscsi_ibft.h>
74#include <linux/limits.h>
75#include <linux/module.h>
76#include <linux/pci.h>
77#include <linux/slab.h>
78#include <linux/stat.h>
79#include <linux/string.h>
80#include <linux/types.h>
81
82#define IBFT_ISCSI_VERSION "0.4.9"
83#define IBFT_ISCSI_DATE "2008-Mar-14"
84
85MODULE_AUTHOR("Peter Jones <pjones@redhat.com> and \
86Konrad Rzeszutek <ketuzsezr@darnok.org>");
87MODULE_DESCRIPTION("sysfs interface to BIOS iBFT information");
88MODULE_LICENSE("GPL");
89MODULE_VERSION(IBFT_ISCSI_VERSION);
90
91struct ibft_hdr {
92 u8 id;
93 u8 version;
94 u16 length;
95 u8 index;
96 u8 flags;
97} __attribute__((__packed__));
98
99struct ibft_control {
100 struct ibft_hdr hdr;
101 u16 extensions;
102 u16 initiator_off;
103 u16 nic0_off;
104 u16 tgt0_off;
105 u16 nic1_off;
106 u16 tgt1_off;
107} __attribute__((__packed__));
108
109struct ibft_initiator {
110 struct ibft_hdr hdr;
111 char isns_server[16];
112 char slp_server[16];
113 char pri_radius_server[16];
114 char sec_radius_server[16];
115 u16 initiator_name_len;
116 u16 initiator_name_off;
117} __attribute__((__packed__));
118
119struct ibft_nic {
120 struct ibft_hdr hdr;
121 char ip_addr[16];
122 u8 subnet_mask_prefix;
123 u8 origin;
124 char gateway[16];
125 char primary_dns[16];
126 char secondary_dns[16];
127 char dhcp[16];
128 u16 vlan;
129 char mac[6];
130 u16 pci_bdf;
131 u16 hostname_len;
132 u16 hostname_off;
133} __attribute__((__packed__));
134
135struct ibft_tgt {
136 struct ibft_hdr hdr;
137 char ip_addr[16];
138 u16 port;
139 char lun[8];
140 u8 chap_type;
141 u8 nic_assoc;
142 u16 tgt_name_len;
143 u16 tgt_name_off;
144 u16 chap_name_len;
145 u16 chap_name_off;
146 u16 chap_secret_len;
147 u16 chap_secret_off;
148 u16 rev_chap_name_len;
149 u16 rev_chap_name_off;
150 u16 rev_chap_secret_len;
151 u16 rev_chap_secret_off;
152} __attribute__((__packed__));
153
154
155
156
157
158enum ibft_id {
159 id_reserved = 0,
160 id_control = 1,
161 id_initiator = 2,
162 id_nic = 3,
163 id_target = 4,
164 id_extensions = 5,
165 id_end_marker,
166};
167
168
169
170
171
172static const char *ibft_id_names[] =
173 {NULL, NULL, "initiator", "ethernet%d", "target%d", NULL, NULL};
174
175
176
177
178enum ibft_eth_properties_enum {
179 ibft_eth_index,
180 ibft_eth_flags,
181 ibft_eth_ip_addr,
182 ibft_eth_subnet_mask,
183 ibft_eth_origin,
184 ibft_eth_gateway,
185 ibft_eth_primary_dns,
186 ibft_eth_secondary_dns,
187 ibft_eth_dhcp,
188 ibft_eth_vlan,
189 ibft_eth_mac,
190
191 ibft_eth_hostname,
192 ibft_eth_end_marker,
193};
194
195static const char *ibft_eth_properties[] =
196 {"index", "flags", "ip-addr", "subnet-mask", "origin", "gateway",
197 "primary-dns", "secondary-dns", "dhcp", "vlan", "mac", "hostname",
198 NULL};
199
200enum ibft_tgt_properties_enum {
201 ibft_tgt_index,
202 ibft_tgt_flags,
203 ibft_tgt_ip_addr,
204 ibft_tgt_port,
205 ibft_tgt_lun,
206 ibft_tgt_chap_type,
207 ibft_tgt_nic_assoc,
208 ibft_tgt_name,
209 ibft_tgt_chap_name,
210 ibft_tgt_chap_secret,
211 ibft_tgt_rev_chap_name,
212 ibft_tgt_rev_chap_secret,
213 ibft_tgt_end_marker,
214};
215
216static const char *ibft_tgt_properties[] =
217 {"index", "flags", "ip-addr", "port", "lun", "chap-type", "nic-assoc",
218 "target-name", "chap-name", "chap-secret", "rev-chap-name",
219 "rev-chap-name-secret", NULL};
220
221enum ibft_initiator_properties_enum {
222 ibft_init_index,
223 ibft_init_flags,
224 ibft_init_isns_server,
225 ibft_init_slp_server,
226 ibft_init_pri_radius_server,
227 ibft_init_sec_radius_server,
228 ibft_init_initiator_name,
229 ibft_init_end_marker,
230};
231
232static const char *ibft_initiator_properties[] =
233 {"index", "flags", "isns-server", "slp-server", "pri-radius-server",
234 "sec-radius-server", "initiator-name", NULL};
235
236
237
238
239
240struct ibft_kobject {
241 struct ibft_table_header *header;
242 union {
243 struct ibft_initiator *initiator;
244 struct ibft_nic *nic;
245 struct ibft_tgt *tgt;
246 struct ibft_hdr *hdr;
247 };
248 struct kobject kobj;
249 struct list_head node;
250};
251
252struct ibft_attribute {
253 struct attribute attr;
254 ssize_t (*show) (struct ibft_kobject *entry,
255 struct ibft_attribute *attr, char *buf);
256 union {
257 struct ibft_initiator *initiator;
258 struct ibft_nic *nic;
259 struct ibft_tgt *tgt;
260 struct ibft_hdr *hdr;
261 };
262 struct kobject *kobj;
263 int type;
264
265
266 struct list_head node;
267};
268
269static LIST_HEAD(ibft_attr_list);
270static LIST_HEAD(ibft_kobject_list);
271
272static const char nulls[16];
273
274
275
276
277static ssize_t sprintf_ipaddr(char *buf, u8 *ip)
278{
279 char *str = buf;
280
281 if (ip[0] == 0 && ip[1] == 0 && ip[2] == 0 && ip[3] == 0 &&
282 ip[4] == 0 && ip[5] == 0 && ip[6] == 0 && ip[7] == 0 &&
283 ip[8] == 0 && ip[9] == 0 && ip[10] == 0xff && ip[11] == 0xff) {
284
285
286
287 str += sprintf(buf, "%pI4", ip + 12);
288 } else {
289
290
291
292 str += sprintf(str, "%pI6", ip);
293 }
294 str += sprintf(str, "\n");
295 return str - buf;
296}
297
298static ssize_t sprintf_string(char *str, int len, char *buf)
299{
300 return sprintf(str, "%.*s\n", len, buf);
301}
302
303
304
305
306static int ibft_verify_hdr(char *t, struct ibft_hdr *hdr, int id, int length)
307{
308 if (hdr->id != id) {
309 printk(KERN_ERR "iBFT error: We expected the " \
310 "field header.id to have %d but " \
311 "found %d instead!\n", id, hdr->id);
312 return -ENODEV;
313 }
314 if (hdr->length != length) {
315 printk(KERN_ERR "iBFT error: We expected the " \
316 "field header.length to have %d but " \
317 "found %d instead!\n", length, hdr->length);
318 return -ENODEV;
319 }
320
321 return 0;
322}
323
324static void ibft_release(struct kobject *kobj)
325{
326 struct ibft_kobject *ibft =
327 container_of(kobj, struct ibft_kobject, kobj);
328 kfree(ibft);
329}
330
331
332
333
334static ssize_t ibft_attr_show_initiator(struct ibft_kobject *entry,
335 struct ibft_attribute *attr,
336 char *buf)
337{
338 struct ibft_initiator *initiator = entry->initiator;
339 void *ibft_loc = entry->header;
340 char *str = buf;
341
342 if (!initiator)
343 return 0;
344
345 switch (attr->type) {
346 case ibft_init_index:
347 str += sprintf(str, "%d\n", initiator->hdr.index);
348 break;
349 case ibft_init_flags:
350 str += sprintf(str, "%d\n", initiator->hdr.flags);
351 break;
352 case ibft_init_isns_server:
353 str += sprintf_ipaddr(str, initiator->isns_server);
354 break;
355 case ibft_init_slp_server:
356 str += sprintf_ipaddr(str, initiator->slp_server);
357 break;
358 case ibft_init_pri_radius_server:
359 str += sprintf_ipaddr(str, initiator->pri_radius_server);
360 break;
361 case ibft_init_sec_radius_server:
362 str += sprintf_ipaddr(str, initiator->sec_radius_server);
363 break;
364 case ibft_init_initiator_name:
365 str += sprintf_string(str, initiator->initiator_name_len,
366 (char *)ibft_loc +
367 initiator->initiator_name_off);
368 break;
369 default:
370 break;
371 }
372
373 return str - buf;
374}
375
376static ssize_t ibft_attr_show_nic(struct ibft_kobject *entry,
377 struct ibft_attribute *attr,
378 char *buf)
379{
380 struct ibft_nic *nic = entry->nic;
381 void *ibft_loc = entry->header;
382 char *str = buf;
383 __be32 val;
384
385 if (!nic)
386 return 0;
387
388 switch (attr->type) {
389 case ibft_eth_index:
390 str += sprintf(str, "%d\n", nic->hdr.index);
391 break;
392 case ibft_eth_flags:
393 str += sprintf(str, "%d\n", nic->hdr.flags);
394 break;
395 case ibft_eth_ip_addr:
396 str += sprintf_ipaddr(str, nic->ip_addr);
397 break;
398 case ibft_eth_subnet_mask:
399 val = cpu_to_be32(~((1 << (32-nic->subnet_mask_prefix))-1));
400 str += sprintf(str, "%pI4", &val);
401 break;
402 case ibft_eth_origin:
403 str += sprintf(str, "%d\n", nic->origin);
404 break;
405 case ibft_eth_gateway:
406 str += sprintf_ipaddr(str, nic->gateway);
407 break;
408 case ibft_eth_primary_dns:
409 str += sprintf_ipaddr(str, nic->primary_dns);
410 break;
411 case ibft_eth_secondary_dns:
412 str += sprintf_ipaddr(str, nic->secondary_dns);
413 break;
414 case ibft_eth_dhcp:
415 str += sprintf_ipaddr(str, nic->dhcp);
416 break;
417 case ibft_eth_vlan:
418 str += sprintf(str, "%d\n", nic->vlan);
419 break;
420 case ibft_eth_mac:
421 str += sprintf(str, "%pM\n", nic->mac);
422 break;
423 case ibft_eth_hostname:
424 str += sprintf_string(str, nic->hostname_len,
425 (char *)ibft_loc + nic->hostname_off);
426 break;
427 default:
428 break;
429 }
430
431 return str - buf;
432};
433
434static ssize_t ibft_attr_show_target(struct ibft_kobject *entry,
435 struct ibft_attribute *attr,
436 char *buf)
437{
438 struct ibft_tgt *tgt = entry->tgt;
439 void *ibft_loc = entry->header;
440 char *str = buf;
441 int i;
442
443 if (!tgt)
444 return 0;
445
446 switch (attr->type) {
447 case ibft_tgt_index:
448 str += sprintf(str, "%d\n", tgt->hdr.index);
449 break;
450 case ibft_tgt_flags:
451 str += sprintf(str, "%d\n", tgt->hdr.flags);
452 break;
453 case ibft_tgt_ip_addr:
454 str += sprintf_ipaddr(str, tgt->ip_addr);
455 break;
456 case ibft_tgt_port:
457 str += sprintf(str, "%d\n", tgt->port);
458 break;
459 case ibft_tgt_lun:
460 for (i = 0; i < 8; i++)
461 str += sprintf(str, "%x", (u8)tgt->lun[i]);
462 str += sprintf(str, "\n");
463 break;
464 case ibft_tgt_nic_assoc:
465 str += sprintf(str, "%d\n", tgt->nic_assoc);
466 break;
467 case ibft_tgt_chap_type:
468 str += sprintf(str, "%d\n", tgt->chap_type);
469 break;
470 case ibft_tgt_name:
471 str += sprintf_string(str, tgt->tgt_name_len,
472 (char *)ibft_loc + tgt->tgt_name_off);
473 break;
474 case ibft_tgt_chap_name:
475 str += sprintf_string(str, tgt->chap_name_len,
476 (char *)ibft_loc + tgt->chap_name_off);
477 break;
478 case ibft_tgt_chap_secret:
479 str += sprintf_string(str, tgt->chap_secret_len,
480 (char *)ibft_loc + tgt->chap_secret_off);
481 break;
482 case ibft_tgt_rev_chap_name:
483 str += sprintf_string(str, tgt->rev_chap_name_len,
484 (char *)ibft_loc +
485 tgt->rev_chap_name_off);
486 break;
487 case ibft_tgt_rev_chap_secret:
488 str += sprintf_string(str, tgt->rev_chap_secret_len,
489 (char *)ibft_loc +
490 tgt->rev_chap_secret_off);
491 break;
492 default:
493 break;
494 }
495
496 return str - buf;
497}
498
499
500
501
502static ssize_t ibft_show_attribute(struct kobject *kobj,
503 struct attribute *attr,
504 char *buf)
505{
506 struct ibft_kobject *dev =
507 container_of(kobj, struct ibft_kobject, kobj);
508 struct ibft_attribute *ibft_attr =
509 container_of(attr, struct ibft_attribute, attr);
510 ssize_t ret = -EIO;
511 char *str = buf;
512
513 if (!capable(CAP_SYS_ADMIN))
514 return -EACCES;
515
516 if (ibft_attr->show)
517 ret = ibft_attr->show(dev, ibft_attr, str);
518
519 return ret;
520}
521
522static const struct sysfs_ops ibft_attr_ops = {
523 .show = ibft_show_attribute,
524};
525
526static struct kobj_type ibft_ktype = {
527 .release = ibft_release,
528 .sysfs_ops = &ibft_attr_ops,
529};
530
531static struct kset *ibft_kset;
532
533static int __init ibft_check_device(void)
534{
535 int len;
536 u8 *pos;
537 u8 csum = 0;
538
539 len = ibft_addr->length;
540
541
542 if (ibft_addr->revision != 1) {
543 printk(KERN_ERR "iBFT module supports only revision 1, " \
544 "while this is %d.\n", ibft_addr->revision);
545 return -ENOENT;
546 }
547 for (pos = (u8 *)ibft_addr; pos < (u8 *)ibft_addr + len; pos++)
548 csum += *pos;
549
550 if (csum) {
551 printk(KERN_ERR "iBFT has incorrect checksum (0x%x)!\n", csum);
552 return -ENOENT;
553 }
554
555 return 0;
556}
557
558
559
560
561static int __init ibft_create_kobject(struct ibft_table_header *header,
562 struct ibft_hdr *hdr,
563 struct list_head *list)
564{
565 struct ibft_kobject *ibft_kobj = NULL;
566 struct ibft_nic *nic = (struct ibft_nic *)hdr;
567 struct pci_dev *pci_dev;
568 int rc = 0;
569
570 ibft_kobj = kzalloc(sizeof(*ibft_kobj), GFP_KERNEL);
571 if (!ibft_kobj)
572 return -ENOMEM;
573
574 ibft_kobj->header = header;
575 ibft_kobj->hdr = hdr;
576
577 switch (hdr->id) {
578 case id_initiator:
579 rc = ibft_verify_hdr("initiator", hdr, id_initiator,
580 sizeof(*ibft_kobj->initiator));
581 break;
582 case id_nic:
583 rc = ibft_verify_hdr("ethernet", hdr, id_nic,
584 sizeof(*ibft_kobj->nic));
585 break;
586 case id_target:
587 rc = ibft_verify_hdr("target", hdr, id_target,
588 sizeof(*ibft_kobj->tgt));
589 break;
590 case id_reserved:
591 case id_control:
592 case id_extensions:
593
594 rc = 1;
595 break;
596 default:
597 printk(KERN_ERR "iBFT has unknown structure type (%d). " \
598 "Report this bug to %.6s!\n", hdr->id,
599 header->oem_id);
600 rc = 1;
601 break;
602 }
603
604 if (rc) {
605
606 kfree(ibft_kobj);
607 goto out_invalid_struct;
608 }
609
610 ibft_kobj->kobj.kset = ibft_kset;
611
612 rc = kobject_init_and_add(&ibft_kobj->kobj, &ibft_ktype,
613 NULL, ibft_id_names[hdr->id], hdr->index);
614
615 if (rc) {
616 kfree(ibft_kobj);
617 goto out;
618 }
619
620 kobject_uevent(&ibft_kobj->kobj, KOBJ_ADD);
621
622 if (hdr->id == id_nic) {
623
624
625
626
627
628
629 pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
630 (nic->pci_bdf & 0xff));
631 if (pci_dev) {
632 rc = sysfs_create_link(&ibft_kobj->kobj,
633 &pci_dev->dev.kobj, "device");
634 pci_dev_put(pci_dev);
635 }
636 }
637
638
639 list_add_tail(&ibft_kobj->node, list);
640out:
641 return rc;
642out_invalid_struct:
643
644 return 0;
645}
646
647
648
649
650
651
652static int __init ibft_register_kobjects(struct ibft_table_header *header,
653 struct list_head *list)
654{
655 struct ibft_control *control = NULL;
656 void *ptr, *end;
657 int rc = 0;
658 u16 offset;
659 u16 eot_offset;
660
661 control = (void *)header + sizeof(*header);
662 end = (void *)control + control->hdr.length;
663 eot_offset = (void *)header + header->length - (void *)control;
664 rc = ibft_verify_hdr("control", (struct ibft_hdr *)control, id_control,
665 sizeof(*control));
666
667
668 rc |= ((control->hdr.index) ? -ENODEV : 0);
669 if (rc) {
670 printk(KERN_ERR "iBFT error: Control header is invalid!\n");
671 return rc;
672 }
673 for (ptr = &control->initiator_off; ptr < end; ptr += sizeof(u16)) {
674 offset = *(u16 *)ptr;
675 if (offset && offset < header->length && offset < eot_offset) {
676 rc = ibft_create_kobject(header,
677 (void *)header + offset,
678 list);
679 if (rc)
680 break;
681 }
682 }
683
684 return rc;
685}
686
687static void ibft_unregister(struct list_head *attr_list,
688 struct list_head *kobj_list)
689{
690 struct ibft_kobject *data = NULL, *n;
691 struct ibft_attribute *attr = NULL, *m;
692
693 list_for_each_entry_safe(attr, m, attr_list, node) {
694 sysfs_remove_file(attr->kobj, &attr->attr);
695 list_del(&attr->node);
696 kfree(attr);
697 };
698 list_del_init(attr_list);
699
700 list_for_each_entry_safe(data, n, kobj_list, node) {
701 list_del(&data->node);
702 if (data->hdr->id == id_nic)
703 sysfs_remove_link(&data->kobj, "device");
704 kobject_put(&data->kobj);
705 };
706 list_del_init(kobj_list);
707}
708
709static int __init ibft_create_attribute(struct ibft_kobject *kobj_data,
710 int type,
711 const char *name,
712 ssize_t (*show)(struct ibft_kobject *,
713 struct ibft_attribute*,
714 char *buf),
715 struct list_head *list)
716{
717 struct ibft_attribute *attr = NULL;
718 struct ibft_hdr *hdr = kobj_data->hdr;
719
720 attr = kmalloc(sizeof(*attr), GFP_KERNEL);
721 if (!attr)
722 return -ENOMEM;
723
724 attr->attr.name = name;
725 attr->attr.mode = S_IRUSR;
726
727 attr->hdr = hdr;
728 attr->show = show;
729 attr->kobj = &kobj_data->kobj;
730 attr->type = type;
731
732 list_add_tail(&attr->node, list);
733
734 return 0;
735}
736
737
738
739
740
741static int __init ibft_check_nic_for(struct ibft_nic *nic, int entry)
742{
743 int rc = 0;
744
745 switch (entry) {
746 case ibft_eth_index:
747 case ibft_eth_flags:
748 rc = 1;
749 break;
750 case ibft_eth_ip_addr:
751 if (memcmp(nic->ip_addr, nulls, sizeof(nic->ip_addr)))
752 rc = 1;
753 break;
754 case ibft_eth_subnet_mask:
755 if (nic->subnet_mask_prefix)
756 rc = 1;
757 break;
758 case ibft_eth_origin:
759 rc = 1;
760 break;
761 case ibft_eth_gateway:
762 if (memcmp(nic->gateway, nulls, sizeof(nic->gateway)))
763 rc = 1;
764 break;
765 case ibft_eth_primary_dns:
766 if (memcmp(nic->primary_dns, nulls,
767 sizeof(nic->primary_dns)))
768 rc = 1;
769 break;
770 case ibft_eth_secondary_dns:
771 if (memcmp(nic->secondary_dns, nulls,
772 sizeof(nic->secondary_dns)))
773 rc = 1;
774 break;
775 case ibft_eth_dhcp:
776 if (memcmp(nic->dhcp, nulls, sizeof(nic->dhcp)))
777 rc = 1;
778 break;
779 case ibft_eth_vlan:
780 case ibft_eth_mac:
781 rc = 1;
782 break;
783 case ibft_eth_hostname:
784 if (nic->hostname_off)
785 rc = 1;
786 break;
787 default:
788 break;
789 }
790
791 return rc;
792}
793
794static int __init ibft_check_tgt_for(struct ibft_tgt *tgt, int entry)
795{
796 int rc = 0;
797
798 switch (entry) {
799 case ibft_tgt_index:
800 case ibft_tgt_flags:
801 case ibft_tgt_ip_addr:
802 case ibft_tgt_port:
803 case ibft_tgt_lun:
804 case ibft_tgt_nic_assoc:
805 case ibft_tgt_chap_type:
806 rc = 1;
807 case ibft_tgt_name:
808 if (tgt->tgt_name_len)
809 rc = 1;
810 break;
811 case ibft_tgt_chap_name:
812 case ibft_tgt_chap_secret:
813 if (tgt->chap_name_len)
814 rc = 1;
815 break;
816 case ibft_tgt_rev_chap_name:
817 case ibft_tgt_rev_chap_secret:
818 if (tgt->rev_chap_name_len)
819 rc = 1;
820 break;
821 default:
822 break;
823 }
824
825 return rc;
826}
827
828static int __init ibft_check_initiator_for(struct ibft_initiator *init,
829 int entry)
830{
831 int rc = 0;
832
833 switch (entry) {
834 case ibft_init_index:
835 case ibft_init_flags:
836 rc = 1;
837 break;
838 case ibft_init_isns_server:
839 if (memcmp(init->isns_server, nulls,
840 sizeof(init->isns_server)))
841 rc = 1;
842 break;
843 case ibft_init_slp_server:
844 if (memcmp(init->slp_server, nulls,
845 sizeof(init->slp_server)))
846 rc = 1;
847 break;
848 case ibft_init_pri_radius_server:
849 if (memcmp(init->pri_radius_server, nulls,
850 sizeof(init->pri_radius_server)))
851 rc = 1;
852 break;
853 case ibft_init_sec_radius_server:
854 if (memcmp(init->sec_radius_server, nulls,
855 sizeof(init->sec_radius_server)))
856 rc = 1;
857 break;
858 case ibft_init_initiator_name:
859 if (init->initiator_name_len)
860 rc = 1;
861 break;
862 default:
863 break;
864 }
865
866 return rc;
867}
868
869
870
871
872static int __init ibft_register_attributes(struct list_head *kobject_list,
873 struct list_head *attr_list)
874{
875 int rc = 0, i = 0;
876 struct ibft_kobject *data = NULL;
877 struct ibft_attribute *attr = NULL, *m;
878
879 list_for_each_entry(data, kobject_list, node) {
880 switch (data->hdr->id) {
881 case id_nic:
882 for (i = 0; i < ibft_eth_end_marker && !rc; i++)
883 if (ibft_check_nic_for(data->nic, i))
884 rc = ibft_create_attribute(data, i,
885 ibft_eth_properties[i],
886 ibft_attr_show_nic, attr_list);
887 break;
888 case id_target:
889 for (i = 0; i < ibft_tgt_end_marker && !rc; i++)
890 if (ibft_check_tgt_for(data->tgt, i))
891 rc = ibft_create_attribute(data, i,
892 ibft_tgt_properties[i],
893 ibft_attr_show_target,
894 attr_list);
895 break;
896 case id_initiator:
897 for (i = 0; i < ibft_init_end_marker && !rc; i++)
898 if (ibft_check_initiator_for(
899 data->initiator, i))
900 rc = ibft_create_attribute(data, i,
901 ibft_initiator_properties[i],
902 ibft_attr_show_initiator,
903 attr_list);
904 break;
905 default:
906 break;
907 }
908 if (rc)
909 break;
910 }
911 list_for_each_entry_safe(attr, m, attr_list, node) {
912 rc = sysfs_create_file(attr->kobj, &attr->attr);
913 if (rc) {
914 list_del(&attr->node);
915 kfree(attr);
916 break;
917 }
918 }
919
920 return rc;
921}
922
923
924
925
926static int __init ibft_init(void)
927{
928 int rc = 0;
929
930 ibft_kset = kset_create_and_add("ibft", NULL, firmware_kobj);
931 if (!ibft_kset)
932 return -ENOMEM;
933
934 if (ibft_addr) {
935 printk(KERN_INFO "iBFT detected at 0x%llx.\n",
936 (u64)isa_virt_to_bus(ibft_addr));
937
938 rc = ibft_check_device();
939 if (rc)
940 goto out_firmware_unregister;
941
942
943 rc = ibft_register_kobjects(ibft_addr, &ibft_kobject_list);
944 if (rc)
945 goto out_free;
946
947
948 rc = ibft_register_attributes(&ibft_kobject_list,
949 &ibft_attr_list);
950 if (rc)
951 goto out_free;
952 } else
953 printk(KERN_INFO "No iBFT detected.\n");
954
955 return 0;
956
957out_free:
958 ibft_unregister(&ibft_attr_list, &ibft_kobject_list);
959out_firmware_unregister:
960 kset_unregister(ibft_kset);
961 return rc;
962}
963
964static void __exit ibft_exit(void)
965{
966 ibft_unregister(&ibft_attr_list, &ibft_kobject_list);
967 kset_unregister(ibft_kset);
968}
969
970module_init(ibft_init);
971module_exit(ibft_exit);
972
