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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 char *mac;
384 int val;
385
386 if (!nic)
387 return 0;
388
389 switch (attr->type) {
390 case ibft_eth_index:
391 str += sprintf(str, "%d\n", nic->hdr.index);
392 break;
393 case ibft_eth_flags:
394 str += sprintf(str, "%d\n", nic->hdr.flags);
395 break;
396 case ibft_eth_ip_addr:
397 str += sprintf_ipaddr(str, nic->ip_addr);
398 break;
399 case ibft_eth_subnet_mask:
400 val = ~((1 << (32-nic->subnet_mask_prefix))-1);
401 str += sprintf(str, NIPQUAD_FMT,
402 (u8)(val >> 24), (u8)(val >> 16),
403 (u8)(val >> 8), (u8)(val));
404 break;
405 case ibft_eth_origin:
406 str += sprintf(str, "%d\n", nic->origin);
407 break;
408 case ibft_eth_gateway:
409 str += sprintf_ipaddr(str, nic->gateway);
410 break;
411 case ibft_eth_primary_dns:
412 str += sprintf_ipaddr(str, nic->primary_dns);
413 break;
414 case ibft_eth_secondary_dns:
415 str += sprintf_ipaddr(str, nic->secondary_dns);
416 break;
417 case ibft_eth_dhcp:
418 str += sprintf_ipaddr(str, nic->dhcp);
419 break;
420 case ibft_eth_vlan:
421 str += sprintf(str, "%d\n", nic->vlan);
422 break;
423 case ibft_eth_mac:
424 mac = nic->mac;
425 str += sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x\n",
426 (u8)mac[0], (u8)mac[1], (u8)mac[2],
427 (u8)mac[3], (u8)mac[4], (u8)mac[5]);
428 break;
429 case ibft_eth_hostname:
430 str += sprintf_string(str, nic->hostname_len,
431 (char *)ibft_loc + nic->hostname_off);
432 break;
433 default:
434 break;
435 }
436
437 return str - buf;
438};
439
440static ssize_t ibft_attr_show_target(struct ibft_kobject *entry,
441 struct ibft_attribute *attr,
442 char *buf)
443{
444 struct ibft_tgt *tgt = entry->tgt;
445 void *ibft_loc = entry->header;
446 char *str = buf;
447 int i;
448
449 if (!tgt)
450 return 0;
451
452 switch (attr->type) {
453 case ibft_tgt_index:
454 str += sprintf(str, "%d\n", tgt->hdr.index);
455 break;
456 case ibft_tgt_flags:
457 str += sprintf(str, "%d\n", tgt->hdr.flags);
458 break;
459 case ibft_tgt_ip_addr:
460 str += sprintf_ipaddr(str, tgt->ip_addr);
461 break;
462 case ibft_tgt_port:
463 str += sprintf(str, "%d\n", tgt->port);
464 break;
465 case ibft_tgt_lun:
466 for (i = 0; i < 8; i++)
467 str += sprintf(str, "%x", (u8)tgt->lun[i]);
468 str += sprintf(str, "\n");
469 break;
470 case ibft_tgt_nic_assoc:
471 str += sprintf(str, "%d\n", tgt->nic_assoc);
472 break;
473 case ibft_tgt_chap_type:
474 str += sprintf(str, "%d\n", tgt->chap_type);
475 break;
476 case ibft_tgt_name:
477 str += sprintf_string(str, tgt->tgt_name_len,
478 (char *)ibft_loc + tgt->tgt_name_off);
479 break;
480 case ibft_tgt_chap_name:
481 str += sprintf_string(str, tgt->chap_name_len,
482 (char *)ibft_loc + tgt->chap_name_off);
483 break;
484 case ibft_tgt_chap_secret:
485 str += sprintf_string(str, tgt->chap_secret_len,
486 (char *)ibft_loc + tgt->chap_secret_off);
487 break;
488 case ibft_tgt_rev_chap_name:
489 str += sprintf_string(str, tgt->rev_chap_name_len,
490 (char *)ibft_loc +
491 tgt->rev_chap_name_off);
492 break;
493 case ibft_tgt_rev_chap_secret:
494 str += sprintf_string(str, tgt->rev_chap_secret_len,
495 (char *)ibft_loc +
496 tgt->rev_chap_secret_off);
497 break;
498 default:
499 break;
500 }
501
502 return str - buf;
503}
504
505
506
507
508static ssize_t ibft_show_attribute(struct kobject *kobj,
509 struct attribute *attr,
510 char *buf)
511{
512 struct ibft_kobject *dev =
513 container_of(kobj, struct ibft_kobject, kobj);
514 struct ibft_attribute *ibft_attr =
515 container_of(attr, struct ibft_attribute, attr);
516 ssize_t ret = -EIO;
517 char *str = buf;
518
519 if (!capable(CAP_SYS_ADMIN))
520 return -EACCES;
521
522 if (ibft_attr->show)
523 ret = ibft_attr->show(dev, ibft_attr, str);
524
525 return ret;
526}
527
528static struct sysfs_ops ibft_attr_ops = {
529 .show = ibft_show_attribute,
530};
531
532static struct kobj_type ibft_ktype = {
533 .release = ibft_release,
534 .sysfs_ops = &ibft_attr_ops,
535};
536
537static struct kset *ibft_kset;
538
539static int __init ibft_check_device(void)
540{
541 int len;
542 u8 *pos;
543 u8 csum = 0;
544
545 len = ibft_addr->length;
546
547
548 if (ibft_addr->revision != 1) {
549 printk(KERN_ERR "iBFT module supports only revision 1, " \
550 "while this is %d.\n", ibft_addr->revision);
551 return -ENOENT;
552 }
553 for (pos = (u8 *)ibft_addr; pos < (u8 *)ibft_addr + len; pos++)
554 csum += *pos;
555
556 if (csum) {
557 printk(KERN_ERR "iBFT has incorrect checksum (0x%x)!\n", csum);
558 return -ENOENT;
559 }
560
561 return 0;
562}
563
564
565
566
567static int __init ibft_create_kobject(struct ibft_table_header *header,
568 struct ibft_hdr *hdr,
569 struct list_head *list)
570{
571 struct ibft_kobject *ibft_kobj = NULL;
572 struct ibft_nic *nic = (struct ibft_nic *)hdr;
573 struct pci_dev *pci_dev;
574 int rc = 0;
575
576 ibft_kobj = kzalloc(sizeof(*ibft_kobj), GFP_KERNEL);
577 if (!ibft_kobj)
578 return -ENOMEM;
579
580 ibft_kobj->header = header;
581 ibft_kobj->hdr = hdr;
582
583 switch (hdr->id) {
584 case id_initiator:
585 rc = ibft_verify_hdr("initiator", hdr, id_initiator,
586 sizeof(*ibft_kobj->initiator));
587 break;
588 case id_nic:
589 rc = ibft_verify_hdr("ethernet", hdr, id_nic,
590 sizeof(*ibft_kobj->nic));
591 break;
592 case id_target:
593 rc = ibft_verify_hdr("target", hdr, id_target,
594 sizeof(*ibft_kobj->tgt));
595 break;
596 case id_reserved:
597 case id_control:
598 case id_extensions:
599
600 rc = 1;
601 break;
602 default:
603 printk(KERN_ERR "iBFT has unknown structure type (%d). " \
604 "Report this bug to %.6s!\n", hdr->id,
605 header->oem_id);
606 rc = 1;
607 break;
608 }
609
610 if (rc) {
611
612 kfree(ibft_kobj);
613 goto out_invalid_struct;
614 }
615
616 ibft_kobj->kobj.kset = ibft_kset;
617
618 rc = kobject_init_and_add(&ibft_kobj->kobj, &ibft_ktype,
619 NULL, ibft_id_names[hdr->id], hdr->index);
620
621 if (rc) {
622 kfree(ibft_kobj);
623 goto out;
624 }
625
626 kobject_uevent(&ibft_kobj->kobj, KOBJ_ADD);
627
628 if (hdr->id == id_nic) {
629
630
631
632
633
634
635 pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
636 (nic->pci_bdf & 0xff));
637 if (pci_dev) {
638 rc = sysfs_create_link(&ibft_kobj->kobj,
639 &pci_dev->dev.kobj, "device");
640 pci_dev_put(pci_dev);
641 }
642 }
643
644
645 list_add_tail(&ibft_kobj->node, list);
646out:
647 return rc;
648out_invalid_struct:
649
650 return 0;
651}
652
653
654
655
656
657
658static int __init ibft_register_kobjects(struct ibft_table_header *header,
659 struct list_head *list)
660{
661 struct ibft_control *control = NULL;
662 void *ptr, *end;
663 int rc = 0;
664 u16 offset;
665 u16 eot_offset;
666
667 control = (void *)header + sizeof(*header);
668 end = (void *)control + control->hdr.length;
669 eot_offset = (void *)header + header->length - (void *)control;
670 rc = ibft_verify_hdr("control", (struct ibft_hdr *)control, id_control,
671 sizeof(*control));
672
673
674 rc |= ((control->hdr.index) ? -ENODEV : 0);
675 if (rc) {
676 printk(KERN_ERR "iBFT error: Control header is invalid!\n");
677 return rc;
678 }
679 for (ptr = &control->initiator_off; ptr < end; ptr += sizeof(u16)) {
680 offset = *(u16 *)ptr;
681 if (offset && offset < header->length && offset < eot_offset) {
682 rc = ibft_create_kobject(header,
683 (void *)header + offset,
684 list);
685 if (rc)
686 break;
687 }
688 }
689
690 return rc;
691}
692
693static void ibft_unregister(struct list_head *attr_list,
694 struct list_head *kobj_list)
695{
696 struct ibft_kobject *data = NULL, *n;
697 struct ibft_attribute *attr = NULL, *m;
698
699 list_for_each_entry_safe(attr, m, attr_list, node) {
700 sysfs_remove_file(attr->kobj, &attr->attr);
701 list_del(&attr->node);
702 kfree(attr);
703 };
704 list_del_init(attr_list);
705
706 list_for_each_entry_safe(data, n, kobj_list, node) {
707 list_del(&data->node);
708 if (data->hdr->id == id_nic)
709 sysfs_remove_link(&data->kobj, "device");
710 kobject_put(&data->kobj);
711 };
712 list_del_init(kobj_list);
713}
714
715static int __init ibft_create_attribute(struct ibft_kobject *kobj_data,
716 int type,
717 const char *name,
718 ssize_t (*show)(struct ibft_kobject *,
719 struct ibft_attribute*,
720 char *buf),
721 struct list_head *list)
722{
723 struct ibft_attribute *attr = NULL;
724 struct ibft_hdr *hdr = kobj_data->hdr;
725
726 attr = kmalloc(sizeof(*attr), GFP_KERNEL);
727 if (!attr)
728 return -ENOMEM;
729
730 attr->attr.name = name;
731 attr->attr.mode = S_IRUSR;
732
733 attr->hdr = hdr;
734 attr->show = show;
735 attr->kobj = &kobj_data->kobj;
736 attr->type = type;
737
738 list_add_tail(&attr->node, list);
739
740 return 0;
741}
742
743
744
745
746
747static int __init ibft_check_nic_for(struct ibft_nic *nic, int entry)
748{
749 int rc = 0;
750
751 switch (entry) {
752 case ibft_eth_index:
753 case ibft_eth_flags:
754 rc = 1;
755 break;
756 case ibft_eth_ip_addr:
757 if (memcmp(nic->ip_addr, nulls, sizeof(nic->ip_addr)))
758 rc = 1;
759 break;
760 case ibft_eth_subnet_mask:
761 if (nic->subnet_mask_prefix)
762 rc = 1;
763 break;
764 case ibft_eth_origin:
765 rc = 1;
766 break;
767 case ibft_eth_gateway:
768 if (memcmp(nic->gateway, nulls, sizeof(nic->gateway)))
769 rc = 1;
770 break;
771 case ibft_eth_primary_dns:
772 if (memcmp(nic->primary_dns, nulls,
773 sizeof(nic->primary_dns)))
774 rc = 1;
775 break;
776 case ibft_eth_secondary_dns:
777 if (memcmp(nic->secondary_dns, nulls,
778 sizeof(nic->secondary_dns)))
779 rc = 1;
780 break;
781 case ibft_eth_dhcp:
782 if (memcmp(nic->dhcp, nulls, sizeof(nic->dhcp)))
783 rc = 1;
784 break;
785 case ibft_eth_vlan:
786 case ibft_eth_mac:
787 rc = 1;
788 break;
789 case ibft_eth_hostname:
790 if (nic->hostname_off)
791 rc = 1;
792 break;
793 default:
794 break;
795 }
796
797 return rc;
798}
799
800static int __init ibft_check_tgt_for(struct ibft_tgt *tgt, int entry)
801{
802 int rc = 0;
803
804 switch (entry) {
805 case ibft_tgt_index:
806 case ibft_tgt_flags:
807 case ibft_tgt_ip_addr:
808 case ibft_tgt_port:
809 case ibft_tgt_lun:
810 case ibft_tgt_nic_assoc:
811 case ibft_tgt_chap_type:
812 rc = 1;
813 case ibft_tgt_name:
814 if (tgt->tgt_name_len)
815 rc = 1;
816 break;
817 case ibft_tgt_chap_name:
818 case ibft_tgt_chap_secret:
819 if (tgt->chap_name_len)
820 rc = 1;
821 break;
822 case ibft_tgt_rev_chap_name:
823 case ibft_tgt_rev_chap_secret:
824 if (tgt->rev_chap_name_len)
825 rc = 1;
826 break;
827 default:
828 break;
829 }
830
831 return rc;
832}
833
834static int __init ibft_check_initiator_for(struct ibft_initiator *init,
835 int entry)
836{
837 int rc = 0;
838
839 switch (entry) {
840 case ibft_init_index:
841 case ibft_init_flags:
842 rc = 1;
843 break;
844 case ibft_init_isns_server:
845 if (memcmp(init->isns_server, nulls,
846 sizeof(init->isns_server)))
847 rc = 1;
848 break;
849 case ibft_init_slp_server:
850 if (memcmp(init->slp_server, nulls,
851 sizeof(init->slp_server)))
852 rc = 1;
853 break;
854 case ibft_init_pri_radius_server:
855 if (memcmp(init->pri_radius_server, nulls,
856 sizeof(init->pri_radius_server)))
857 rc = 1;
858 break;
859 case ibft_init_sec_radius_server:
860 if (memcmp(init->sec_radius_server, nulls,
861 sizeof(init->sec_radius_server)))
862 rc = 1;
863 break;
864 case ibft_init_initiator_name:
865 if (init->initiator_name_len)
866 rc = 1;
867 break;
868 default:
869 break;
870 }
871
872 return rc;
873}
874
875
876
877
878static int __init ibft_register_attributes(struct list_head *kobject_list,
879 struct list_head *attr_list)
880{
881 int rc = 0, i = 0;
882 struct ibft_kobject *data = NULL;
883 struct ibft_attribute *attr = NULL, *m;
884
885 list_for_each_entry(data, kobject_list, node) {
886 switch (data->hdr->id) {
887 case id_nic:
888 for (i = 0; i < ibft_eth_end_marker && !rc; i++)
889 if (ibft_check_nic_for(data->nic, i))
890 rc = ibft_create_attribute(data, i,
891 ibft_eth_properties[i],
892 ibft_attr_show_nic, attr_list);
893 break;
894 case id_target:
895 for (i = 0; i < ibft_tgt_end_marker && !rc; i++)
896 if (ibft_check_tgt_for(data->tgt, i))
897 rc = ibft_create_attribute(data, i,
898 ibft_tgt_properties[i],
899 ibft_attr_show_target,
900 attr_list);
901 break;
902 case id_initiator:
903 for (i = 0; i < ibft_init_end_marker && !rc; i++)
904 if (ibft_check_initiator_for(
905 data->initiator, i))
906 rc = ibft_create_attribute(data, i,
907 ibft_initiator_properties[i],
908 ibft_attr_show_initiator,
909 attr_list);
910 break;
911 default:
912 break;
913 }
914 if (rc)
915 break;
916 }
917 list_for_each_entry_safe(attr, m, attr_list, node) {
918 rc = sysfs_create_file(attr->kobj, &attr->attr);
919 if (rc) {
920 list_del(&attr->node);
921 kfree(attr);
922 break;
923 }
924 }
925
926 return rc;
927}
928
929
930
931
932static int __init ibft_init(void)
933{
934 int rc = 0;
935
936 ibft_kset = kset_create_and_add("ibft", NULL, firmware_kobj);
937 if (!ibft_kset)
938 return -ENOMEM;
939
940 if (ibft_addr) {
941 printk(KERN_INFO "iBFT detected at 0x%llx.\n",
942 (u64)virt_to_phys((void *)ibft_addr));
943
944 rc = ibft_check_device();
945 if (rc)
946 goto out_firmware_unregister;
947
948
949 rc = ibft_register_kobjects(ibft_addr, &ibft_kobject_list);
950 if (rc)
951 goto out_free;
952
953
954 rc = ibft_register_attributes(&ibft_kobject_list,
955 &ibft_attr_list);
956 if (rc)
957 goto out_free;
958 } else
959 printk(KERN_INFO "No iBFT detected.\n");
960
961 return 0;
962
963out_free:
964 ibft_unregister(&ibft_attr_list, &ibft_kobject_list);
965out_firmware_unregister:
966 kset_unregister(ibft_kset);
967 return rc;
968}
969
970static void __exit ibft_exit(void)
971{
972 ibft_unregister(&ibft_attr_list, &ibft_kobject_list);
973 kset_unregister(ibft_kset);
974}
975
976module_init(ibft_init);
977module_exit(ibft_exit);
978
