target: remove the always-noop ->new_cmd_failure method
[linux-2.6.git] / drivers / target / tcm_fc / tfc_conf.c
1 /*******************************************************************************
2  * Filename:  tcm_fc.c
3  *
4  * This file contains the configfs implementation for TCM_fc fabric node.
5  * Based on tcm_loop_configfs.c
6  *
7  * Copyright (c) 2010 Cisco Systems, Inc.
8  * Copyright (c) 2009,2010 Rising Tide, Inc.
9  * Copyright (c) 2009,2010 Linux-iSCSI.org
10  *
11  * Copyright (c) 2009,2010 Nicholas A. Bellinger <nab@linux-iscsi.org>
12  *
13  * This program is free software; you can redistribute it and/or modify
14  * it under the terms of the GNU General Public License as published by
15  * the Free Software Foundation; either version 2 of the License, or
16  * (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  * GNU General Public License for more details.
22  ****************************************************************************/
23
24 #include <linux/module.h>
25 #include <linux/moduleparam.h>
26 #include <linux/version.h>
27 #include <generated/utsrelease.h>
28 #include <linux/utsname.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/kthread.h>
32 #include <linux/types.h>
33 #include <linux/string.h>
34 #include <linux/configfs.h>
35 #include <linux/ctype.h>
36 #include <asm/unaligned.h>
37 #include <scsi/scsi.h>
38 #include <scsi/scsi_host.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_cmnd.h>
41 #include <scsi/libfc.h>
42
43 #include <target/target_core_base.h>
44 #include <target/target_core_transport.h>
45 #include <target/target_core_fabric_ops.h>
46 #include <target/target_core_fabric_configfs.h>
47 #include <target/target_core_fabric_lib.h>
48 #include <target/target_core_device.h>
49 #include <target/target_core_tpg.h>
50 #include <target/target_core_configfs.h>
51 #include <target/target_core_base.h>
52 #include <target/configfs_macros.h>
53
54 #include "tcm_fc.h"
55
56 struct target_fabric_configfs *ft_configfs;
57
58 LIST_HEAD(ft_lport_list);
59 DEFINE_MUTEX(ft_lport_lock);
60
61 unsigned int ft_debug_logging;
62 module_param_named(debug_logging, ft_debug_logging, int, S_IRUGO|S_IWUSR);
63 MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
64
65 /*
66  * Parse WWN.
67  * If strict, we require lower-case hex and colon separators to be sure
68  * the name is the same as what would be generated by ft_format_wwn()
69  * so the name and wwn are mapped one-to-one.
70  */
71 static ssize_t ft_parse_wwn(const char *name, u64 *wwn, int strict)
72 {
73         const char *cp;
74         char c;
75         u32 nibble;
76         u32 byte = 0;
77         u32 pos = 0;
78         u32 err;
79
80         *wwn = 0;
81         for (cp = name; cp < &name[FT_NAMELEN - 1]; cp++) {
82                 c = *cp;
83                 if (c == '\n' && cp[1] == '\0')
84                         continue;
85                 if (strict && pos++ == 2 && byte++ < 7) {
86                         pos = 0;
87                         if (c == ':')
88                                 continue;
89                         err = 1;
90                         goto fail;
91                 }
92                 if (c == '\0') {
93                         err = 2;
94                         if (strict && byte != 8)
95                                 goto fail;
96                         return cp - name;
97                 }
98                 err = 3;
99                 if (isdigit(c))
100                         nibble = c - '0';
101                 else if (isxdigit(c) && (islower(c) || !strict))
102                         nibble = tolower(c) - 'a' + 10;
103                 else
104                         goto fail;
105                 *wwn = (*wwn << 4) | nibble;
106         }
107         err = 4;
108 fail:
109         FT_CONF_DBG("err %u len %zu pos %u byte %u\n",
110                     err, cp - name, pos, byte);
111         return -1;
112 }
113
114 ssize_t ft_format_wwn(char *buf, size_t len, u64 wwn)
115 {
116         u8 b[8];
117
118         put_unaligned_be64(wwn, b);
119         return snprintf(buf, len,
120                  "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
121                  b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
122 }
123
124 static ssize_t ft_wwn_show(void *arg, char *buf)
125 {
126         u64 *wwn = arg;
127         ssize_t len;
128
129         len = ft_format_wwn(buf, PAGE_SIZE - 2, *wwn);
130         buf[len++] = '\n';
131         return len;
132 }
133
134 static ssize_t ft_wwn_store(void *arg, const char *buf, size_t len)
135 {
136         ssize_t ret;
137         u64 wwn;
138
139         ret = ft_parse_wwn(buf, &wwn, 0);
140         if (ret > 0)
141                 *(u64 *)arg = wwn;
142         return ret;
143 }
144
145 /*
146  * ACL auth ops.
147  */
148
149 static ssize_t ft_nacl_show_port_name(
150         struct se_node_acl *se_nacl,
151         char *page)
152 {
153         struct ft_node_acl *acl = container_of(se_nacl,
154                         struct ft_node_acl, se_node_acl);
155
156         return ft_wwn_show(&acl->node_auth.port_name, page);
157 }
158
159 static ssize_t ft_nacl_store_port_name(
160         struct se_node_acl *se_nacl,
161         const char *page,
162         size_t count)
163 {
164         struct ft_node_acl *acl = container_of(se_nacl,
165                         struct ft_node_acl, se_node_acl);
166
167         return ft_wwn_store(&acl->node_auth.port_name, page, count);
168 }
169
170 TF_NACL_BASE_ATTR(ft, port_name, S_IRUGO | S_IWUSR);
171
172 static ssize_t ft_nacl_show_node_name(
173         struct se_node_acl *se_nacl,
174         char *page)
175 {
176         struct ft_node_acl *acl = container_of(se_nacl,
177                         struct ft_node_acl, se_node_acl);
178
179         return ft_wwn_show(&acl->node_auth.node_name, page);
180 }
181
182 static ssize_t ft_nacl_store_node_name(
183         struct se_node_acl *se_nacl,
184         const char *page,
185         size_t count)
186 {
187         struct ft_node_acl *acl = container_of(se_nacl,
188                         struct ft_node_acl, se_node_acl);
189
190         return ft_wwn_store(&acl->node_auth.node_name, page, count);
191 }
192
193 TF_NACL_BASE_ATTR(ft, node_name, S_IRUGO | S_IWUSR);
194
195 static struct configfs_attribute *ft_nacl_base_attrs[] = {
196         &ft_nacl_port_name.attr,
197         &ft_nacl_node_name.attr,
198         NULL,
199 };
200
201 /*
202  * ACL ops.
203  */
204
205 /*
206  * Add ACL for an initiator.  The ACL is named arbitrarily.
207  * The port_name and/or node_name are attributes.
208  */
209 static struct se_node_acl *ft_add_acl(
210         struct se_portal_group *se_tpg,
211         struct config_group *group,
212         const char *name)
213 {
214         struct ft_node_acl *acl;
215         struct ft_tpg *tpg;
216         u64 wwpn;
217         u32 q_depth;
218
219         FT_CONF_DBG("add acl %s\n", name);
220         tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
221
222         if (ft_parse_wwn(name, &wwpn, 1) < 0)
223                 return ERR_PTR(-EINVAL);
224
225         acl = kzalloc(sizeof(struct ft_node_acl), GFP_KERNEL);
226         if (!(acl))
227                 return ERR_PTR(-ENOMEM);
228         acl->node_auth.port_name = wwpn;
229
230         q_depth = 32;           /* XXX bogus default - get from tpg? */
231         return core_tpg_add_initiator_node_acl(&tpg->se_tpg,
232                                 &acl->se_node_acl, name, q_depth);
233 }
234
235 static void ft_del_acl(struct se_node_acl *se_acl)
236 {
237         struct se_portal_group *se_tpg = se_acl->se_tpg;
238         struct ft_tpg *tpg;
239         struct ft_node_acl *acl = container_of(se_acl,
240                                 struct ft_node_acl, se_node_acl);
241
242         FT_CONF_DBG("del acl %s\n",
243                 config_item_name(&se_acl->acl_group.cg_item));
244
245         tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
246         FT_CONF_DBG("del acl %p se_acl %p tpg %p se_tpg %p\n",
247                     acl, se_acl, tpg, &tpg->se_tpg);
248
249         core_tpg_del_initiator_node_acl(&tpg->se_tpg, se_acl, 1);
250         kfree(acl);
251 }
252
253 struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata)
254 {
255         struct ft_node_acl *found = NULL;
256         struct ft_node_acl *acl;
257         struct se_portal_group *se_tpg = &tpg->se_tpg;
258         struct se_node_acl *se_acl;
259
260         spin_lock_bh(&se_tpg->acl_node_lock);
261         list_for_each_entry(se_acl, &se_tpg->acl_node_list, acl_list) {
262                 acl = container_of(se_acl, struct ft_node_acl, se_node_acl);
263                 FT_CONF_DBG("acl %p port_name %llx\n",
264                         acl, (unsigned long long)acl->node_auth.port_name);
265                 if (acl->node_auth.port_name == rdata->ids.port_name ||
266                     acl->node_auth.node_name == rdata->ids.node_name) {
267                         FT_CONF_DBG("acl %p port_name %llx matched\n", acl,
268                                     (unsigned long long)rdata->ids.port_name);
269                         found = acl;
270                         /* XXX need to hold onto ACL */
271                         break;
272                 }
273         }
274         spin_unlock_bh(&se_tpg->acl_node_lock);
275         return found;
276 }
277
278 struct se_node_acl *ft_tpg_alloc_fabric_acl(struct se_portal_group *se_tpg)
279 {
280         struct ft_node_acl *acl;
281
282         acl = kzalloc(sizeof(*acl), GFP_KERNEL);
283         if (!(acl)) {
284                 printk(KERN_ERR "Unable to allocate struct ft_node_acl\n");
285                 return NULL;
286         }
287         FT_CONF_DBG("acl %p\n", acl);
288         return &acl->se_node_acl;
289 }
290
291 static void ft_tpg_release_fabric_acl(struct se_portal_group *se_tpg,
292                                       struct se_node_acl *se_acl)
293 {
294         struct ft_node_acl *acl = container_of(se_acl,
295                                 struct ft_node_acl, se_node_acl);
296
297         FT_CONF_DBG(KERN_INFO "acl %p\n", acl);
298         kfree(acl);
299 }
300
301 /*
302  * local_port port_group (tpg) ops.
303  */
304 static struct se_portal_group *ft_add_tpg(
305         struct se_wwn *wwn,
306         struct config_group *group,
307         const char *name)
308 {
309         struct ft_lport_acl *lacl;
310         struct ft_tpg *tpg;
311         unsigned long index;
312         int ret;
313
314         FT_CONF_DBG("tcm_fc: add tpg %s\n", name);
315
316         /*
317          * Name must be "tpgt_" followed by the index.
318          */
319         if (strstr(name, "tpgt_") != name)
320                 return NULL;
321         if (strict_strtoul(name + 5, 10, &index) || index > UINT_MAX)
322                 return NULL;
323
324         lacl = container_of(wwn, struct ft_lport_acl, fc_lport_wwn);
325         tpg = kzalloc(sizeof(*tpg), GFP_KERNEL);
326         if (!tpg)
327                 return NULL;
328         tpg->index = index;
329         tpg->lport_acl = lacl;
330         INIT_LIST_HEAD(&tpg->lun_list);
331         transport_init_queue_obj(&tpg->qobj);
332
333         ret = core_tpg_register(&ft_configfs->tf_ops, wwn, &tpg->se_tpg,
334                                 tpg, TRANSPORT_TPG_TYPE_NORMAL);
335         if (ret < 0) {
336                 kfree(tpg);
337                 return NULL;
338         }
339
340         tpg->thread = kthread_run(ft_thread, tpg, "ft_tpg%lu", index);
341         if (IS_ERR(tpg->thread)) {
342                 kfree(tpg);
343                 return NULL;
344         }
345
346         mutex_lock(&ft_lport_lock);
347         list_add_tail(&tpg->list, &lacl->tpg_list);
348         mutex_unlock(&ft_lport_lock);
349
350         return &tpg->se_tpg;
351 }
352
353 static void ft_del_tpg(struct se_portal_group *se_tpg)
354 {
355         struct ft_tpg *tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
356
357         FT_CONF_DBG("del tpg %s\n",
358                     config_item_name(&tpg->se_tpg.tpg_group.cg_item));
359
360         kthread_stop(tpg->thread);
361
362         /* Wait for sessions to be freed thru RCU, for BUG_ON below */
363         synchronize_rcu();
364
365         mutex_lock(&ft_lport_lock);
366         list_del(&tpg->list);
367         if (tpg->tport) {
368                 tpg->tport->tpg = NULL;
369                 tpg->tport = NULL;
370         }
371         mutex_unlock(&ft_lport_lock);
372
373         core_tpg_deregister(se_tpg);
374         kfree(tpg);
375 }
376
377 /*
378  * Verify that an lport is configured to use the tcm_fc module, and return
379  * the target port group that should be used.
380  *
381  * The caller holds ft_lport_lock.
382  */
383 struct ft_tpg *ft_lport_find_tpg(struct fc_lport *lport)
384 {
385         struct ft_lport_acl *lacl;
386         struct ft_tpg *tpg;
387
388         list_for_each_entry(lacl, &ft_lport_list, list) {
389                 if (lacl->wwpn == lport->wwpn) {
390                         list_for_each_entry(tpg, &lacl->tpg_list, list)
391                                 return tpg; /* XXX for now return first entry */
392                         return NULL;
393                 }
394         }
395         return NULL;
396 }
397
398 /*
399  * target config instance ops.
400  */
401
402 /*
403  * Add lport to allowed config.
404  * The name is the WWPN in lower-case ASCII, colon-separated bytes.
405  */
406 static struct se_wwn *ft_add_lport(
407         struct target_fabric_configfs *tf,
408         struct config_group *group,
409         const char *name)
410 {
411         struct ft_lport_acl *lacl;
412         struct ft_lport_acl *old_lacl;
413         u64 wwpn;
414
415         FT_CONF_DBG("add lport %s\n", name);
416         if (ft_parse_wwn(name, &wwpn, 1) < 0)
417                 return NULL;
418         lacl = kzalloc(sizeof(*lacl), GFP_KERNEL);
419         if (!lacl)
420                 return NULL;
421         lacl->wwpn = wwpn;
422         INIT_LIST_HEAD(&lacl->tpg_list);
423
424         mutex_lock(&ft_lport_lock);
425         list_for_each_entry(old_lacl, &ft_lport_list, list) {
426                 if (old_lacl->wwpn == wwpn) {
427                         mutex_unlock(&ft_lport_lock);
428                         kfree(lacl);
429                         return NULL;
430                 }
431         }
432         list_add_tail(&lacl->list, &ft_lport_list);
433         ft_format_wwn(lacl->name, sizeof(lacl->name), wwpn);
434         mutex_unlock(&ft_lport_lock);
435
436         return &lacl->fc_lport_wwn;
437 }
438
439 static void ft_del_lport(struct se_wwn *wwn)
440 {
441         struct ft_lport_acl *lacl = container_of(wwn,
442                                 struct ft_lport_acl, fc_lport_wwn);
443
444         FT_CONF_DBG("del lport %s\n",
445                         config_item_name(&wwn->wwn_group.cg_item));
446         mutex_lock(&ft_lport_lock);
447         list_del(&lacl->list);
448         mutex_unlock(&ft_lport_lock);
449
450         kfree(lacl);
451 }
452
453 static ssize_t ft_wwn_show_attr_version(
454         struct target_fabric_configfs *tf,
455         char *page)
456 {
457         return sprintf(page, "TCM FC " FT_VERSION " on %s/%s on "
458                 ""UTS_RELEASE"\n",  utsname()->sysname, utsname()->machine);
459 }
460
461 TF_WWN_ATTR_RO(ft, version);
462
463 static struct configfs_attribute *ft_wwn_attrs[] = {
464         &ft_wwn_version.attr,
465         NULL,
466 };
467
468 static char *ft_get_fabric_name(void)
469 {
470         return "fc";
471 }
472
473 static char *ft_get_fabric_wwn(struct se_portal_group *se_tpg)
474 {
475         struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
476
477         return tpg->lport_acl->name;
478 }
479
480 static u16 ft_get_tag(struct se_portal_group *se_tpg)
481 {
482         struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
483
484         /*
485          * This tag is used when forming SCSI Name identifier in EVPD=1 0x83
486          * to represent the SCSI Target Port.
487          */
488         return tpg->index;
489 }
490
491 static u32 ft_get_default_depth(struct se_portal_group *se_tpg)
492 {
493         return 1;
494 }
495
496 static int ft_check_false(struct se_portal_group *se_tpg)
497 {
498         return 0;
499 }
500
501 static void ft_set_default_node_attr(struct se_node_acl *se_nacl)
502 {
503 }
504
505 static u16 ft_get_fabric_sense_len(void)
506 {
507         return 0;
508 }
509
510 static u16 ft_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_len)
511 {
512         return 0;
513 }
514
515 static u32 ft_tpg_get_inst_index(struct se_portal_group *se_tpg)
516 {
517         struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr;
518
519         return tpg->index;
520 }
521
522 static struct target_core_fabric_ops ft_fabric_ops = {
523         .get_fabric_name =              ft_get_fabric_name,
524         .get_fabric_proto_ident =       fc_get_fabric_proto_ident,
525         .tpg_get_wwn =                  ft_get_fabric_wwn,
526         .tpg_get_tag =                  ft_get_tag,
527         .tpg_get_default_depth =        ft_get_default_depth,
528         .tpg_get_pr_transport_id =      fc_get_pr_transport_id,
529         .tpg_get_pr_transport_id_len =  fc_get_pr_transport_id_len,
530         .tpg_parse_pr_out_transport_id = fc_parse_pr_out_transport_id,
531         .tpg_check_demo_mode =          ft_check_false,
532         .tpg_check_demo_mode_cache =    ft_check_false,
533         .tpg_check_demo_mode_write_protect = ft_check_false,
534         .tpg_check_prod_mode_write_protect = ft_check_false,
535         .tpg_alloc_fabric_acl =         ft_tpg_alloc_fabric_acl,
536         .tpg_release_fabric_acl =       ft_tpg_release_fabric_acl,
537         .tpg_get_inst_index =           ft_tpg_get_inst_index,
538         .check_stop_free =              ft_check_stop_free,
539         .release_cmd_to_pool =          ft_release_cmd,
540         .release_cmd_direct =           ft_release_cmd,
541         .shutdown_session =             ft_sess_shutdown,
542         .close_session =                ft_sess_close,
543         .stop_session =                 ft_sess_stop,
544         .fall_back_to_erl0 =            ft_sess_set_erl0,
545         .sess_logged_in =               ft_sess_logged_in,
546         .sess_get_index =               ft_sess_get_index,
547         .sess_get_initiator_sid =       NULL,
548         .write_pending =                ft_write_pending,
549         .write_pending_status =         ft_write_pending_status,
550         .set_default_node_attributes =  ft_set_default_node_attr,
551         .get_task_tag =                 ft_get_task_tag,
552         .get_cmd_state =                ft_get_cmd_state,
553         .queue_data_in =                ft_queue_data_in,
554         .queue_status =                 ft_queue_status,
555         .queue_tm_rsp =                 ft_queue_tm_resp,
556         .get_fabric_sense_len =         ft_get_fabric_sense_len,
557         .set_fabric_sense_len =         ft_set_fabric_sense_len,
558         .is_state_remove =              ft_is_state_remove,
559         /*
560          * Setup function pointers for generic logic in
561          * target_core_fabric_configfs.c
562          */
563         .fabric_make_wwn =              &ft_add_lport,
564         .fabric_drop_wwn =              &ft_del_lport,
565         .fabric_make_tpg =              &ft_add_tpg,
566         .fabric_drop_tpg =              &ft_del_tpg,
567         .fabric_post_link =             NULL,
568         .fabric_pre_unlink =            NULL,
569         .fabric_make_np =               NULL,
570         .fabric_drop_np =               NULL,
571         .fabric_make_nodeacl =          &ft_add_acl,
572         .fabric_drop_nodeacl =          &ft_del_acl,
573 };
574
575 int ft_register_configfs(void)
576 {
577         struct target_fabric_configfs *fabric;
578         int ret;
579
580         /*
581          * Register the top level struct config_item_type with TCM core
582          */
583         fabric = target_fabric_configfs_init(THIS_MODULE, "fc");
584         if (IS_ERR(fabric)) {
585                 printk(KERN_INFO "%s: target_fabric_configfs_init() failed!\n",
586                        __func__);
587                 return PTR_ERR(fabric);
588         }
589         fabric->tf_ops = ft_fabric_ops;
590
591         /* Allowing support for task_sg_chaining */
592         fabric->tf_ops.task_sg_chaining = 1;
593
594         /*
595          * Setup default attribute lists for various fabric->tf_cit_tmpl
596          */
597         TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = ft_wwn_attrs;
598         TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = NULL;
599         TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
600         TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
601         TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
602         TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs =
603                                                     ft_nacl_base_attrs;
604         TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
605         TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
606         TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
607         /*
608          * register the fabric for use within TCM
609          */
610         ret = target_fabric_configfs_register(fabric);
611         if (ret < 0) {
612                 FT_CONF_DBG("target_fabric_configfs_register() for"
613                             " FC Target failed!\n");
614                 printk(KERN_INFO
615                        "%s: target_fabric_configfs_register() failed!\n",
616                        __func__);
617                 target_fabric_configfs_free(fabric);
618                 return -1;
619         }
620
621         /*
622          * Setup our local pointer to *fabric.
623          */
624         ft_configfs = fabric;
625         return 0;
626 }
627
628 void ft_deregister_configfs(void)
629 {
630         if (!ft_configfs)
631                 return;
632         target_fabric_configfs_deregister(ft_configfs);
633         ft_configfs = NULL;
634 }
635
636 static struct notifier_block ft_notifier = {
637         .notifier_call = ft_lport_notify
638 };
639
640 static int __init ft_init(void)
641 {
642         if (ft_register_configfs())
643                 return -1;
644         if (fc_fc4_register_provider(FC_TYPE_FCP, &ft_prov)) {
645                 ft_deregister_configfs();
646                 return -1;
647         }
648         blocking_notifier_chain_register(&fc_lport_notifier_head, &ft_notifier);
649         fc_lport_iterate(ft_lport_add, NULL);
650         return 0;
651 }
652
653 static void __exit ft_exit(void)
654 {
655         blocking_notifier_chain_unregister(&fc_lport_notifier_head,
656                                            &ft_notifier);
657         fc_fc4_deregister_provider(FC_TYPE_FCP, &ft_prov);
658         fc_lport_iterate(ft_lport_del, NULL);
659         ft_deregister_configfs();
660         synchronize_rcu();
661 }
662
663 #ifdef MODULE
664 MODULE_DESCRIPTION("FC TCM fabric driver " FT_VERSION);
665 MODULE_LICENSE("GPL");
666 module_init(ft_init);
667 module_exit(ft_exit);
668 #endif /* MODULE */