blob: 798f7c7ee426d72033321d55af20594a53c865fc [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * FiberChannel transport specific attributes exported to sysfs.
3 *
4 * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 * ========
21 *
22 * Copyright (C) 2004-2005 James Smart, Emulex Corporation
23 * Rewrite for host, target, device, and remote port attributes,
24 * statistics, and service functions...
25 *
26 */
27#ifndef SCSI_TRANSPORT_FC_H
28#define SCSI_TRANSPORT_FC_H
29
Tim Schmielau4e57b682005-10-30 15:03:48 -080030#include <linux/sched.h>
James.Smart@Emulex.Com19a7b4a2005-10-18 12:03:35 -040031#include <scsi/scsi.h>
James Smart84314fd2006-08-18 17:30:09 -040032#include <scsi/scsi_netlink.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
34struct scsi_transport_template;
35
36
37/*
38 * FC Port definitions - Following FC HBAAPI guidelines
39 *
40 * Note: Not all binary values for the different fields match HBAAPI.
41 * Instead, we use densely packed ordinal values or enums.
42 * We get away with this as we never present the actual binary values
43 * externally. For sysfs, we always present the string that describes
44 * the value. Thus, an admin doesn't need a magic HBAAPI decoder ring
45 * to understand the values. The HBAAPI user-space library is free to
46 * convert the strings into the HBAAPI-specified binary values.
47 *
48 * Note: Not all HBAAPI-defined values are contained in the definitions
49 * below. Those not appropriate to an fc_host (e.g. FCP initiator) have
50 * been removed.
51 */
52
53/*
54 * fc_port_type: If you alter this, you also need to alter scsi_transport_fc.c
55 * (for the ascii descriptions).
56 */
57enum fc_port_type {
58 FC_PORTTYPE_UNKNOWN,
59 FC_PORTTYPE_OTHER,
60 FC_PORTTYPE_NOTPRESENT,
61 FC_PORTTYPE_NPORT, /* Attached to FPort */
62 FC_PORTTYPE_NLPORT, /* (Public) Loop w/ FLPort */
63 FC_PORTTYPE_LPORT, /* (Private) Loop w/o FLPort */
64 FC_PORTTYPE_PTP, /* Point to Point w/ another NPort */
65};
66
67/*
68 * fc_port_state: If you alter this, you also need to alter scsi_transport_fc.c
69 * (for the ascii descriptions).
70 */
71enum fc_port_state {
72 FC_PORTSTATE_UNKNOWN,
73 FC_PORTSTATE_NOTPRESENT,
74 FC_PORTSTATE_ONLINE,
75 FC_PORTSTATE_OFFLINE, /* User has taken Port Offline */
76 FC_PORTSTATE_BLOCKED,
77 FC_PORTSTATE_BYPASSED,
78 FC_PORTSTATE_DIAGNOSTICS,
79 FC_PORTSTATE_LINKDOWN,
80 FC_PORTSTATE_ERROR,
81 FC_PORTSTATE_LOOPBACK,
James.Smart@Emulex.Com42e33142005-12-15 09:56:22 -050082 FC_PORTSTATE_DELETED,
Linus Torvalds1da177e2005-04-16 15:20:36 -070083};
84
85
86/*
87 * FC Classes of Service
88 * Note: values are not enumerated, as they can be "or'd" together
89 * for reporting (e.g. report supported_classes). If you alter this list,
90 * you also need to alter scsi_transport_fc.c (for the ascii descriptions).
91 */
92#define FC_COS_UNSPECIFIED 0
93#define FC_COS_CLASS1 2
94#define FC_COS_CLASS2 4
95#define FC_COS_CLASS3 8
96#define FC_COS_CLASS4 0x10
97#define FC_COS_CLASS6 0x40
98
99/*
100 * FC Port Speeds
101 * Note: values are not enumerated, as they can be "or'd" together
102 * for reporting (e.g. report supported_speeds). If you alter this list,
103 * you also need to alter scsi_transport_fc.c (for the ascii descriptions).
104 */
105#define FC_PORTSPEED_UNKNOWN 0 /* Unknown - transceiver
106 incapable of reporting */
107#define FC_PORTSPEED_1GBIT 1
108#define FC_PORTSPEED_2GBIT 2
Andreas Herrmann1832a582005-09-16 11:01:14 +0200109#define FC_PORTSPEED_4GBIT 4
110#define FC_PORTSPEED_10GBIT 8
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111#define FC_PORTSPEED_NOT_NEGOTIATED (1 << 15) /* Speed not established */
112
113/*
114 * fc_tgtid_binding_type: If you alter this, you also need to alter
115 * scsi_transport_fc.c (for the ascii descriptions).
116 */
117enum fc_tgtid_binding_type {
118 FC_TGTID_BIND_NONE,
119 FC_TGTID_BIND_BY_WWPN,
120 FC_TGTID_BIND_BY_WWNN,
121 FC_TGTID_BIND_BY_ID,
122};
123
124/*
125 * FC Remote Port Roles
126 * Note: values are not enumerated, as they can be "or'd" together
127 * for reporting (e.g. report roles). If you alter this list,
128 * you also need to alter scsi_transport_fc.c (for the ascii descriptions).
129 */
130#define FC_RPORT_ROLE_UNKNOWN 0x00
131#define FC_RPORT_ROLE_FCP_TARGET 0x01
132#define FC_RPORT_ROLE_FCP_INITIATOR 0x02
133#define FC_RPORT_ROLE_IP_PORT 0x04
134
135
136/*
137 * fc_rport_identifiers: This set of data contains all elements
138 * to uniquely identify a remote FC port. The driver uses this data
139 * to report the existence of a remote FC port in the topology. Internally,
140 * the transport uses this data for attributes and to manage consistent
141 * target id bindings.
142 */
143struct fc_rport_identifiers {
144 u64 node_name;
145 u64 port_name;
146 u32 port_id;
147 u32 roles;
148};
149
150/* Macro for use in defining Remote Port attributes */
151#define FC_RPORT_ATTR(_name,_mode,_show,_store) \
152struct class_device_attribute class_device_attr_rport_##_name = \
153 __ATTR(_name,_mode,_show,_store)
154
155
156/*
157 * FC Remote Port Attributes
158 *
159 * This structure exists for each remote FC port that a LLDD notifies
160 * the subsystem of. A remote FC port may or may not be a SCSI Target,
161 * also be a SCSI initiator, IP endpoint, etc. As such, the remote
162 * port is considered a separate entity, independent of "role" (such
163 * as scsi target).
164 *
165 * --
166 *
167 * Attributes are based on HBAAPI V2.0 definitions. Only those
168 * attributes that are determinable by the local port (aka Host)
169 * are contained.
170 *
171 * Fixed attributes are not expected to change. The driver is
172 * expected to set these values after successfully calling
173 * fc_remote_port_add(). The transport fully manages all get functions
174 * w/o driver interaction.
175 *
176 * Dynamic attributes are expected to change. The driver participates
177 * in all get/set operations via functions provided by the driver.
178 *
179 * Private attributes are transport-managed values. They are fully
180 * managed by the transport w/o driver interaction.
181 */
182
183struct fc_rport { /* aka fc_starget_attrs */
184 /* Fixed Attributes */
185 u32 maxframe_size;
186 u32 supported_classes;
187
188 /* Dynamic Attributes */
189 u32 dev_loss_tmo; /* Remote Port loss timeout in seconds. */
190
191 /* Private (Transport-managed) Attributes */
192 u64 node_name;
193 u64 port_name;
194 u32 port_id;
195 u32 roles;
196 enum fc_port_state port_state; /* Will only be ONLINE or UNKNOWN */
197 u32 scsi_target_id;
James Smart0f29b962006-08-18 17:33:29 -0400198 u32 fast_io_fail_tmo;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199
200 /* exported data */
201 void *dd_data; /* Used for driver-specific storage */
202
203 /* internal data */
204 unsigned int channel;
205 u32 number;
James Smartaedf3492006-04-10 10:14:05 -0400206 u8 flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 struct list_head peers;
208 struct device dev;
David Howellsc4028952006-11-22 14:57:56 +0000209 struct delayed_work dev_loss_work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210 struct work_struct scan_work;
David Howellsc4028952006-11-22 14:57:56 +0000211 struct delayed_work fail_io_work;
James Smartaedf3492006-04-10 10:14:05 -0400212 struct work_struct stgt_delete_work;
213 struct work_struct rport_delete_work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214} __attribute__((aligned(sizeof(unsigned long))));
215
James Smartaedf3492006-04-10 10:14:05 -0400216/* bit field values for struct fc_rport "flags" field: */
217#define FC_RPORT_DEVLOSS_PENDING 0x01
218#define FC_RPORT_SCAN_PENDING 0x02
219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220#define dev_to_rport(d) \
221 container_of(d, struct fc_rport, dev)
222#define transport_class_to_rport(classdev) \
223 dev_to_rport(classdev->dev)
224#define rport_to_shost(r) \
225 dev_to_shost(r->dev.parent)
226
227/*
228 * FC SCSI Target Attributes
229 *
230 * The SCSI Target is considered an extention of a remote port (as
231 * a remote port can be more than a SCSI Target). Within the scsi
232 * subsystem, we leave the Target as a separate entity. Doing so
233 * provides backward compatibility with prior FC transport api's,
234 * and lets remote ports be handled entirely within the FC transport
235 * and independently from the scsi subsystem. The drawback is that
236 * some data will be duplicated.
237 */
238
239struct fc_starget_attrs { /* aka fc_target_attrs */
240 /* Dynamic Attributes */
241 u64 node_name;
242 u64 port_name;
243 u32 port_id;
244};
245
246#define fc_starget_node_name(x) \
247 (((struct fc_starget_attrs *)&(x)->starget_data)->node_name)
248#define fc_starget_port_name(x) \
249 (((struct fc_starget_attrs *)&(x)->starget_data)->port_name)
250#define fc_starget_port_id(x) \
251 (((struct fc_starget_attrs *)&(x)->starget_data)->port_id)
252
253#define starget_to_rport(s) \
254 scsi_is_fc_rport(s->dev.parent) ? dev_to_rport(s->dev.parent) : NULL
255
256
257/*
258 * FC Local Port (Host) Statistics
259 */
260
261/* FC Statistics - Following FC HBAAPI v2.0 guidelines */
262struct fc_host_statistics {
263 /* port statistics */
264 u64 seconds_since_last_reset;
265 u64 tx_frames;
266 u64 tx_words;
267 u64 rx_frames;
268 u64 rx_words;
269 u64 lip_count;
270 u64 nos_count;
271 u64 error_frames;
272 u64 dumped_frames;
273 u64 link_failure_count;
274 u64 loss_of_sync_count;
275 u64 loss_of_signal_count;
276 u64 prim_seq_protocol_err_count;
277 u64 invalid_tx_word_count;
278 u64 invalid_crc_count;
279
280 /* fc4 statistics (only FCP supported currently) */
281 u64 fcp_input_requests;
282 u64 fcp_output_requests;
283 u64 fcp_control_requests;
284 u64 fcp_input_megabytes;
285 u64 fcp_output_megabytes;
286};
287
288
289/*
James Smart84314fd2006-08-18 17:30:09 -0400290 * FC Event Codes - Polled and Async, following FC HBAAPI v2.0 guidelines
291 */
292
293/*
294 * fc_host_event_code: If you alter this, you also need to alter
295 * scsi_transport_fc.c (for the ascii descriptions).
296 */
297enum fc_host_event_code {
298 FCH_EVT_LIP = 0x1,
299 FCH_EVT_LINKUP = 0x2,
300 FCH_EVT_LINKDOWN = 0x3,
301 FCH_EVT_LIPRESET = 0x4,
302 FCH_EVT_RSCN = 0x5,
303 FCH_EVT_ADAPTER_CHANGE = 0x103,
304 FCH_EVT_PORT_UNKNOWN = 0x200,
305 FCH_EVT_PORT_OFFLINE = 0x201,
306 FCH_EVT_PORT_ONLINE = 0x202,
307 FCH_EVT_PORT_FABRIC = 0x204,
308 FCH_EVT_LINK_UNKNOWN = 0x500,
309 FCH_EVT_VENDOR_UNIQUE = 0xffff,
310};
311
312
313/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 * FC Local Port (Host) Attributes
315 *
316 * Attributes are based on HBAAPI V2.0 definitions.
317 * Note: OSDeviceName is determined by user-space library
318 *
319 * Fixed attributes are not expected to change. The driver is
320 * expected to set these values after successfully calling scsi_add_host().
321 * The transport fully manages all get functions w/o driver interaction.
322 *
323 * Dynamic attributes are expected to change. The driver participates
324 * in all get/set operations via functions provided by the driver.
325 *
326 * Private attributes are transport-managed values. They are fully
327 * managed by the transport w/o driver interaction.
328 */
329
330#define FC_FC4_LIST_SIZE 32
331#define FC_SYMBOLIC_NAME_SIZE 256
332#define FC_VERSION_STRING_SIZE 64
333#define FC_SERIAL_NUMBER_SIZE 80
334
335struct fc_host_attrs {
336 /* Fixed Attributes */
337 u64 node_name;
338 u64 port_name;
Andreas Herrmann6b7281d2006-01-13 02:16:54 +0100339 u64 permanent_port_name;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 u32 supported_classes;
341 u8 supported_fc4s[FC_FC4_LIST_SIZE];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 u32 supported_speeds;
343 u32 maxframe_size;
344 char serial_number[FC_SERIAL_NUMBER_SIZE];
345
346 /* Dynamic Attributes */
347 u32 port_id;
348 enum fc_port_type port_type;
349 enum fc_port_state port_state;
350 u8 active_fc4s[FC_FC4_LIST_SIZE];
351 u32 speed;
352 u64 fabric_name;
James Smartb8d08212006-08-17 08:00:43 -0400353 char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
354 char system_hostname[FC_SYMBOLIC_NAME_SIZE];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355
356 /* Private (Transport-managed) Attributes */
357 enum fc_tgtid_binding_type tgtid_bind_type;
358
359 /* internal data */
360 struct list_head rports;
361 struct list_head rport_bindings;
362 u32 next_rport_number;
363 u32 next_target_id;
James Smartaedf3492006-04-10 10:14:05 -0400364
365 /* work queues for rport state manipulation */
366 char work_q_name[KOBJ_NAME_LEN];
367 struct workqueue_struct *work_q;
368 char devloss_work_q_name[KOBJ_NAME_LEN];
369 struct workqueue_struct *devloss_work_q;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370};
371
James Smartaedf3492006-04-10 10:14:05 -0400372#define shost_to_fc_host(x) \
373 ((struct fc_host_attrs *)(x)->shost_data)
James.Smart@Emulex.Com42e33142005-12-15 09:56:22 -0500374
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375#define fc_host_node_name(x) \
376 (((struct fc_host_attrs *)(x)->shost_data)->node_name)
377#define fc_host_port_name(x) \
378 (((struct fc_host_attrs *)(x)->shost_data)->port_name)
Andreas Herrmann6b7281d2006-01-13 02:16:54 +0100379#define fc_host_permanent_port_name(x) \
380 (((struct fc_host_attrs *)(x)->shost_data)->permanent_port_name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381#define fc_host_supported_classes(x) \
382 (((struct fc_host_attrs *)(x)->shost_data)->supported_classes)
383#define fc_host_supported_fc4s(x) \
384 (((struct fc_host_attrs *)(x)->shost_data)->supported_fc4s)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385#define fc_host_supported_speeds(x) \
386 (((struct fc_host_attrs *)(x)->shost_data)->supported_speeds)
387#define fc_host_maxframe_size(x) \
388 (((struct fc_host_attrs *)(x)->shost_data)->maxframe_size)
389#define fc_host_serial_number(x) \
390 (((struct fc_host_attrs *)(x)->shost_data)->serial_number)
391#define fc_host_port_id(x) \
392 (((struct fc_host_attrs *)(x)->shost_data)->port_id)
393#define fc_host_port_type(x) \
394 (((struct fc_host_attrs *)(x)->shost_data)->port_type)
395#define fc_host_port_state(x) \
396 (((struct fc_host_attrs *)(x)->shost_data)->port_state)
397#define fc_host_active_fc4s(x) \
398 (((struct fc_host_attrs *)(x)->shost_data)->active_fc4s)
399#define fc_host_speed(x) \
400 (((struct fc_host_attrs *)(x)->shost_data)->speed)
401#define fc_host_fabric_name(x) \
402 (((struct fc_host_attrs *)(x)->shost_data)->fabric_name)
James Smartb8d08212006-08-17 08:00:43 -0400403#define fc_host_symbolic_name(x) \
404 (((struct fc_host_attrs *)(x)->shost_data)->symbolic_name)
405#define fc_host_system_hostname(x) \
406 (((struct fc_host_attrs *)(x)->shost_data)->system_hostname)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407#define fc_host_tgtid_bind_type(x) \
408 (((struct fc_host_attrs *)(x)->shost_data)->tgtid_bind_type)
409#define fc_host_rports(x) \
410 (((struct fc_host_attrs *)(x)->shost_data)->rports)
411#define fc_host_rport_bindings(x) \
412 (((struct fc_host_attrs *)(x)->shost_data)->rport_bindings)
413#define fc_host_next_rport_number(x) \
414 (((struct fc_host_attrs *)(x)->shost_data)->next_rport_number)
415#define fc_host_next_target_id(x) \
416 (((struct fc_host_attrs *)(x)->shost_data)->next_target_id)
James Smartaedf3492006-04-10 10:14:05 -0400417#define fc_host_work_q_name(x) \
418 (((struct fc_host_attrs *)(x)->shost_data)->work_q_name)
419#define fc_host_work_q(x) \
420 (((struct fc_host_attrs *)(x)->shost_data)->work_q)
421#define fc_host_devloss_work_q_name(x) \
422 (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
423#define fc_host_devloss_work_q(x) \
424 (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
426
427/* The functions by which the transport class and the driver communicate */
428struct fc_function_template {
429 void (*get_rport_dev_loss_tmo)(struct fc_rport *);
430 void (*set_rport_dev_loss_tmo)(struct fc_rport *, u32);
431
432 void (*get_starget_node_name)(struct scsi_target *);
433 void (*get_starget_port_name)(struct scsi_target *);
434 void (*get_starget_port_id)(struct scsi_target *);
435
436 void (*get_host_port_id)(struct Scsi_Host *);
437 void (*get_host_port_type)(struct Scsi_Host *);
438 void (*get_host_port_state)(struct Scsi_Host *);
439 void (*get_host_active_fc4s)(struct Scsi_Host *);
440 void (*get_host_speed)(struct Scsi_Host *);
441 void (*get_host_fabric_name)(struct Scsi_Host *);
James Smart016131b2006-08-14 08:20:25 -0400442 void (*get_host_symbolic_name)(struct Scsi_Host *);
James Smartb8d08212006-08-17 08:00:43 -0400443 void (*set_host_system_hostname)(struct Scsi_Host *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444
445 struct fc_host_statistics * (*get_fc_host_stats)(struct Scsi_Host *);
446 void (*reset_fc_host_stats)(struct Scsi_Host *);
447
Andrew Vasquez91ca7b02005-10-27 16:03:37 -0700448 int (*issue_fc_host_lip)(struct Scsi_Host *);
449
James Smart0f29b962006-08-18 17:33:29 -0400450 void (*dev_loss_tmo_callbk)(struct fc_rport *);
451 void (*terminate_rport_io)(struct fc_rport *);
452
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 /* allocation lengths for host-specific data */
454 u32 dd_fcrport_size;
455
456 /*
457 * The driver sets these to tell the transport class it
458 * wants the attributes displayed in sysfs. If the show_ flag
459 * is not set, the attribute will be private to the transport
460 * class
461 */
462
463 /* remote port fixed attributes */
464 unsigned long show_rport_maxframe_size:1;
465 unsigned long show_rport_supported_classes:1;
466 unsigned long show_rport_dev_loss_tmo:1;
467
468 /*
469 * target dynamic attributes
470 * These should all be "1" if the driver uses the remote port
471 * add/delete functions (so attributes reflect rport values).
472 */
473 unsigned long show_starget_node_name:1;
474 unsigned long show_starget_port_name:1;
475 unsigned long show_starget_port_id:1;
476
477 /* host fixed attributes */
478 unsigned long show_host_node_name:1;
479 unsigned long show_host_port_name:1;
Andreas Herrmann6b7281d2006-01-13 02:16:54 +0100480 unsigned long show_host_permanent_port_name:1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 unsigned long show_host_supported_classes:1;
482 unsigned long show_host_supported_fc4s:1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 unsigned long show_host_supported_speeds:1;
484 unsigned long show_host_maxframe_size:1;
485 unsigned long show_host_serial_number:1;
486 /* host dynamic attributes */
487 unsigned long show_host_port_id:1;
488 unsigned long show_host_port_type:1;
489 unsigned long show_host_port_state:1;
490 unsigned long show_host_active_fc4s:1;
491 unsigned long show_host_speed:1;
492 unsigned long show_host_fabric_name:1;
James Smart016131b2006-08-14 08:20:25 -0400493 unsigned long show_host_symbolic_name:1;
James Smartb8d08212006-08-17 08:00:43 -0400494 unsigned long show_host_system_hostname:1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495};
496
497
James.Smart@Emulex.Com19a7b4a2005-10-18 12:03:35 -0400498/**
499 * fc_remote_port_chkready - called to validate the remote port state
500 * prior to initiating io to the port.
501 *
502 * Returns a scsi result code that can be returned by the LLDD.
503 *
504 * @rport: remote port to be checked
505 **/
506static inline int
507fc_remote_port_chkready(struct fc_rport *rport)
508{
509 int result;
510
511 switch (rport->port_state) {
512 case FC_PORTSTATE_ONLINE:
James Smartaedf3492006-04-10 10:14:05 -0400513 if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
514 result = 0;
515 else if (rport->flags & FC_RPORT_DEVLOSS_PENDING)
516 result = DID_IMM_RETRY << 16;
517 else
518 result = DID_NO_CONNECT << 16;
James.Smart@Emulex.Com19a7b4a2005-10-18 12:03:35 -0400519 break;
520 case FC_PORTSTATE_BLOCKED:
James Smartaedf3492006-04-10 10:14:05 -0400521 result = DID_IMM_RETRY << 16;
James.Smart@Emulex.Com19a7b4a2005-10-18 12:03:35 -0400522 break;
523 default:
524 result = DID_NO_CONNECT << 16;
525 break;
526 }
527 return result;
528}
529
James Smartb8d08212006-08-17 08:00:43 -0400530static inline u64 wwn_to_u64(u8 *wwn)
531{
532 return (u64)wwn[0] << 56 | (u64)wwn[1] << 48 |
533 (u64)wwn[2] << 40 | (u64)wwn[3] << 32 |
534 (u64)wwn[4] << 24 | (u64)wwn[5] << 16 |
535 (u64)wwn[6] << 8 | (u64)wwn[7];
536}
537
538static inline void u64_to_wwn(u64 inm, u8 *wwn)
539{
540 wwn[0] = (inm >> 56) & 0xff;
541 wwn[1] = (inm >> 48) & 0xff;
542 wwn[2] = (inm >> 40) & 0xff;
543 wwn[3] = (inm >> 32) & 0xff;
544 wwn[4] = (inm >> 24) & 0xff;
545 wwn[5] = (inm >> 16) & 0xff;
546 wwn[6] = (inm >> 8) & 0xff;
547 wwn[7] = inm & 0xff;
548}
James.Smart@Emulex.Com19a7b4a2005-10-18 12:03:35 -0400549
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550struct scsi_transport_template *fc_attach_transport(
551 struct fc_function_template *);
552void fc_release_transport(struct scsi_transport_template *);
553void fc_remove_host(struct Scsi_Host *);
554struct fc_rport *fc_remote_port_add(struct Scsi_Host *shost,
555 int channel, struct fc_rport_identifiers *ids);
556void fc_remote_port_delete(struct fc_rport *rport);
557void fc_remote_port_rolechg(struct fc_rport *rport, u32 roles);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558int scsi_is_fc_rport(const struct device *);
James Smart84314fd2006-08-18 17:30:09 -0400559u32 fc_get_event_number(void);
560void fc_host_post_event(struct Scsi_Host *shost, u32 event_number,
561 enum fc_host_event_code event_code, u32 event_data);
562void fc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number,
James Smartf14e2e22006-08-22 09:55:23 -0400563 u32 data_len, char * data_buf, u64 vendor_id);
James Smart84314fd2006-08-18 17:30:09 -0400564 /* Note: when specifying vendor_id to fc_host_post_vendor_event()
565 * be sure to read the Vendor Type and ID formatting requirements
566 * specified in scsi_netlink.h
567 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569#endif /* SCSI_TRANSPORT_FC_H */