2 * FiberChannel transport specific attributes exported to sysfs.
4 * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved.
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.
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.
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
22 * Copyright (C) 2004-2007 James Smart, Emulex Corporation
23 * Rewrite for host, target, device, and remote port attributes,
24 * statistics, and service functions...
27 #ifndef SCSI_TRANSPORT_FC_H
28 #define SCSI_TRANSPORT_FC_H
30 #include <linux/sched.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_netlink.h>
34 struct scsi_transport_template
;
38 * FC Port definitions - Following FC HBAAPI guidelines
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.
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
54 * fc_port_type: If you alter this, you also need to alter scsi_transport_fc.c
55 * (for the ascii descriptions).
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 FC_PORTTYPE_NPIV
, /* VPORT based on NPIV */
70 * fc_port_state: If you alter this, you also need to alter scsi_transport_fc.c
71 * (for the ascii descriptions).
75 FC_PORTSTATE_NOTPRESENT
,
77 FC_PORTSTATE_OFFLINE
, /* User has taken Port Offline */
79 FC_PORTSTATE_BYPASSED
,
80 FC_PORTSTATE_DIAGNOSTICS
,
81 FC_PORTSTATE_LINKDOWN
,
83 FC_PORTSTATE_LOOPBACK
,
89 * fc_vport_state: If you alter this, you also need to alter
90 * scsi_transport_fc.c (for the ascii descriptions).
97 FC_VPORT_INITIALIZING
,
98 FC_VPORT_NO_FABRIC_SUPP
,
99 FC_VPORT_NO_FABRIC_RSCS
,
100 FC_VPORT_FABRIC_LOGOUT
,
101 FC_VPORT_FABRIC_REJ_WWN
,
108 * FC Classes of Service
109 * Note: values are not enumerated, as they can be "or'd" together
110 * for reporting (e.g. report supported_classes). If you alter this list,
111 * you also need to alter scsi_transport_fc.c (for the ascii descriptions).
113 #define FC_COS_UNSPECIFIED 0
114 #define FC_COS_CLASS1 2
115 #define FC_COS_CLASS2 4
116 #define FC_COS_CLASS3 8
117 #define FC_COS_CLASS4 0x10
118 #define FC_COS_CLASS6 0x40
122 * Note: values are not enumerated, as they can be "or'd" together
123 * for reporting (e.g. report supported_speeds). If you alter this list,
124 * you also need to alter scsi_transport_fc.c (for the ascii descriptions).
126 #define FC_PORTSPEED_UNKNOWN 0 /* Unknown - transceiver
127 incapable of reporting */
128 #define FC_PORTSPEED_1GBIT 1
129 #define FC_PORTSPEED_2GBIT 2
130 #define FC_PORTSPEED_4GBIT 4
131 #define FC_PORTSPEED_10GBIT 8
132 #define FC_PORTSPEED_8GBIT 0x10
133 #define FC_PORTSPEED_16GBIT 0x20
134 #define FC_PORTSPEED_NOT_NEGOTIATED (1 << 15) /* Speed not established */
137 * fc_tgtid_binding_type: If you alter this, you also need to alter
138 * scsi_transport_fc.c (for the ascii descriptions).
140 enum fc_tgtid_binding_type
{
142 FC_TGTID_BIND_BY_WWPN
,
143 FC_TGTID_BIND_BY_WWNN
,
149 * Note: values are not enumerated, as they can be "or'd" together
150 * for reporting (e.g. report roles). If you alter this list,
151 * you also need to alter scsi_transport_fc.c (for the ascii descriptions).
153 #define FC_PORT_ROLE_UNKNOWN 0x00
154 #define FC_PORT_ROLE_FCP_TARGET 0x01
155 #define FC_PORT_ROLE_FCP_INITIATOR 0x02
156 #define FC_PORT_ROLE_IP_PORT 0x04
158 /* The following are for compatibility */
159 #define FC_RPORT_ROLE_UNKNOWN FC_PORT_ROLE_UNKNOWN
160 #define FC_RPORT_ROLE_FCP_TARGET FC_PORT_ROLE_FCP_TARGET
161 #define FC_RPORT_ROLE_FCP_INITIATOR FC_PORT_ROLE_FCP_INITIATOR
162 #define FC_RPORT_ROLE_IP_PORT FC_PORT_ROLE_IP_PORT
165 /* Macro for use in defining Virtual Port attributes */
166 #define FC_VPORT_ATTR(_name,_mode,_show,_store) \
167 struct device_attribute dev_attr_vport_##_name = \
168 __ATTR(_name,_mode,_show,_store)
172 * FC Virtual Port Attributes
174 * This structure exists for each FC port is a virtual FC port. Virtual
175 * ports share the physical link with the Physical port. Each virtual
176 * ports has a unique presense on the SAN, and may be instantiated via
177 * NPIV, Virtual Fabrics, or via additional ALPAs. As the vport is a
178 * unique presense, each vport has it's own view of the fabric,
179 * authentication privilege, and priorities.
181 * A virtual port may support 1 or more FC4 roles. Typically it is a
182 * FCP Initiator. It could be a FCP Target, or exist sole for an IP over FC
183 * roles. FC port attributes for the vport will be reported on any
184 * fc_host class object allocated for an FCP Initiator.
188 * Fixed attributes are not expected to change. The driver is
189 * expected to set these values after receiving the fc_vport structure
190 * via the vport_create() call from the transport.
191 * The transport fully manages all get functions w/o driver interaction.
193 * Dynamic attributes are expected to change. The driver participates
194 * in all get/set operations via functions provided by the driver.
196 * Private attributes are transport-managed values. They are fully
197 * managed by the transport w/o driver interaction.
200 #define FC_VPORT_SYMBOLIC_NAMELEN 64
202 /* Fixed Attributes */
204 /* Dynamic Attributes */
206 /* Private (Transport-managed) Attributes */
207 enum fc_vport_state vport_state
;
208 enum fc_vport_state vport_last_state
;
212 u32 vport_id
; /* Admin Identifier for the vport */
213 enum fc_port_type vport_type
;
214 char symbolic_name
[FC_VPORT_SYMBOLIC_NAMELEN
];
217 void *dd_data
; /* Used for driver-specific storage */
220 struct Scsi_Host
*shost
; /* Physical Port Parent */
221 unsigned int channel
;
224 struct list_head peers
;
226 struct work_struct vport_delete_work
;
227 } __attribute__((aligned(sizeof(unsigned long))));
229 /* bit field values for struct fc_vport "flags" field: */
230 #define FC_VPORT_CREATING 0x01
231 #define FC_VPORT_DELETING 0x02
232 #define FC_VPORT_DELETED 0x04
233 #define FC_VPORT_DEL 0x06 /* Any DELETE state */
235 #define dev_to_vport(d) \
236 container_of(d, struct fc_vport, dev)
237 #define transport_class_to_vport(dev) \
238 dev_to_vport(dev->parent)
239 #define vport_to_shost(v) \
241 #define vport_to_shost_channel(v) \
243 #define vport_to_parent(v) \
247 /* Error return codes for vport_create() callback */
248 #define VPCERR_UNSUPPORTED -ENOSYS /* no driver/adapter
250 #define VPCERR_BAD_WWN -ENOTUNIQ /* driver validation
252 #define VPCERR_NO_FABRIC_SUPP -EOPNOTSUPP /* Fabric connection
258 * fc_rport_identifiers: This set of data contains all elements
259 * to uniquely identify a remote FC port. The driver uses this data
260 * to report the existence of a remote FC port in the topology. Internally,
261 * the transport uses this data for attributes and to manage consistent
262 * target id bindings.
264 struct fc_rport_identifiers
{
272 /* Macro for use in defining Remote Port attributes */
273 #define FC_RPORT_ATTR(_name,_mode,_show,_store) \
274 struct device_attribute dev_attr_rport_##_name = \
275 __ATTR(_name,_mode,_show,_store)
279 * FC Remote Port Attributes
281 * This structure exists for each remote FC port that a LLDD notifies
282 * the subsystem of. A remote FC port may or may not be a SCSI Target,
283 * also be a SCSI initiator, IP endpoint, etc. As such, the remote
284 * port is considered a separate entity, independent of "role" (such
289 * Attributes are based on HBAAPI V2.0 definitions. Only those
290 * attributes that are determinable by the local port (aka Host)
293 * Fixed attributes are not expected to change. The driver is
294 * expected to set these values after successfully calling
295 * fc_remote_port_add(). The transport fully manages all get functions
296 * w/o driver interaction.
298 * Dynamic attributes are expected to change. The driver participates
299 * in all get/set operations via functions provided by the driver.
301 * Private attributes are transport-managed values. They are fully
302 * managed by the transport w/o driver interaction.
305 struct fc_rport
{ /* aka fc_starget_attrs */
306 /* Fixed Attributes */
308 u32 supported_classes
;
310 /* Dynamic Attributes */
311 u32 dev_loss_tmo
; /* Remote Port loss timeout in seconds. */
313 /* Private (Transport-managed) Attributes */
318 enum fc_port_state port_state
; /* Will only be ONLINE or UNKNOWN */
320 u32 fast_io_fail_tmo
;
323 void *dd_data
; /* Used for driver-specific storage */
326 unsigned int channel
;
329 struct list_head peers
;
331 struct delayed_work dev_loss_work
;
332 struct work_struct scan_work
;
333 struct delayed_work fail_io_work
;
334 struct work_struct stgt_delete_work
;
335 struct work_struct rport_delete_work
;
336 } __attribute__((aligned(sizeof(unsigned long))));
338 /* bit field values for struct fc_rport "flags" field: */
339 #define FC_RPORT_DEVLOSS_PENDING 0x01
340 #define FC_RPORT_SCAN_PENDING 0x02
342 #define dev_to_rport(d) \
343 container_of(d, struct fc_rport, dev)
344 #define transport_class_to_rport(dev) \
345 dev_to_rport(dev->parent)
346 #define rport_to_shost(r) \
347 dev_to_shost(r->dev.parent)
350 * FC SCSI Target Attributes
352 * The SCSI Target is considered an extention of a remote port (as
353 * a remote port can be more than a SCSI Target). Within the scsi
354 * subsystem, we leave the Target as a separate entity. Doing so
355 * provides backward compatibility with prior FC transport api's,
356 * and lets remote ports be handled entirely within the FC transport
357 * and independently from the scsi subsystem. The drawback is that
358 * some data will be duplicated.
361 struct fc_starget_attrs
{ /* aka fc_target_attrs */
362 /* Dynamic Attributes */
368 #define fc_starget_node_name(x) \
369 (((struct fc_starget_attrs *)&(x)->starget_data)->node_name)
370 #define fc_starget_port_name(x) \
371 (((struct fc_starget_attrs *)&(x)->starget_data)->port_name)
372 #define fc_starget_port_id(x) \
373 (((struct fc_starget_attrs *)&(x)->starget_data)->port_id)
375 #define starget_to_rport(s) \
376 scsi_is_fc_rport(s->dev.parent) ? dev_to_rport(s->dev.parent) : NULL
380 * FC Local Port (Host) Statistics
383 /* FC Statistics - Following FC HBAAPI v2.0 guidelines */
384 struct fc_host_statistics
{
385 /* port statistics */
386 u64 seconds_since_last_reset
;
395 u64 link_failure_count
;
396 u64 loss_of_sync_count
;
397 u64 loss_of_signal_count
;
398 u64 prim_seq_protocol_err_count
;
399 u64 invalid_tx_word_count
;
400 u64 invalid_crc_count
;
402 /* fc4 statistics (only FCP supported currently) */
403 u64 fcp_input_requests
;
404 u64 fcp_output_requests
;
405 u64 fcp_control_requests
;
406 u64 fcp_input_megabytes
;
407 u64 fcp_output_megabytes
;
412 * FC Event Codes - Polled and Async, following FC HBAAPI v2.0 guidelines
416 * fc_host_event_code: If you alter this, you also need to alter
417 * scsi_transport_fc.c (for the ascii descriptions).
419 enum fc_host_event_code
{
421 FCH_EVT_LINKUP
= 0x2,
422 FCH_EVT_LINKDOWN
= 0x3,
423 FCH_EVT_LIPRESET
= 0x4,
425 FCH_EVT_ADAPTER_CHANGE
= 0x103,
426 FCH_EVT_PORT_UNKNOWN
= 0x200,
427 FCH_EVT_PORT_OFFLINE
= 0x201,
428 FCH_EVT_PORT_ONLINE
= 0x202,
429 FCH_EVT_PORT_FABRIC
= 0x204,
430 FCH_EVT_LINK_UNKNOWN
= 0x500,
431 FCH_EVT_VENDOR_UNIQUE
= 0xffff,
436 * FC Local Port (Host) Attributes
438 * Attributes are based on HBAAPI V2.0 definitions.
439 * Note: OSDeviceName is determined by user-space library
441 * Fixed attributes are not expected to change. The driver is
442 * expected to set these values after successfully calling scsi_add_host().
443 * The transport fully manages all get functions w/o driver interaction.
445 * Dynamic attributes are expected to change. The driver participates
446 * in all get/set operations via functions provided by the driver.
448 * Private attributes are transport-managed values. They are fully
449 * managed by the transport w/o driver interaction.
452 #define FC_FC4_LIST_SIZE 32
453 #define FC_SYMBOLIC_NAME_SIZE 256
454 #define FC_VERSION_STRING_SIZE 64
455 #define FC_SERIAL_NUMBER_SIZE 80
457 struct fc_host_attrs
{
458 /* Fixed Attributes */
461 u64 permanent_port_name
;
462 u32 supported_classes
;
463 u8 supported_fc4s
[FC_FC4_LIST_SIZE
];
464 u32 supported_speeds
;
467 char serial_number
[FC_SERIAL_NUMBER_SIZE
];
469 /* Dynamic Attributes */
471 enum fc_port_type port_type
;
472 enum fc_port_state port_state
;
473 u8 active_fc4s
[FC_FC4_LIST_SIZE
];
476 char symbolic_name
[FC_SYMBOLIC_NAME_SIZE
];
477 char system_hostname
[FC_SYMBOLIC_NAME_SIZE
];
479 /* Private (Transport-managed) Attributes */
480 enum fc_tgtid_binding_type tgtid_bind_type
;
483 struct list_head rports
;
484 struct list_head rport_bindings
;
485 struct list_head vports
;
486 u32 next_rport_number
;
488 u32 next_vport_number
;
489 u16 npiv_vports_inuse
;
491 /* work queues for rport state manipulation */
492 char work_q_name
[20];
493 struct workqueue_struct
*work_q
;
494 char devloss_work_q_name
[20];
495 struct workqueue_struct
*devloss_work_q
;
498 #define shost_to_fc_host(x) \
499 ((struct fc_host_attrs *)(x)->shost_data)
501 #define fc_host_node_name(x) \
502 (((struct fc_host_attrs *)(x)->shost_data)->node_name)
503 #define fc_host_port_name(x) \
504 (((struct fc_host_attrs *)(x)->shost_data)->port_name)
505 #define fc_host_permanent_port_name(x) \
506 (((struct fc_host_attrs *)(x)->shost_data)->permanent_port_name)
507 #define fc_host_supported_classes(x) \
508 (((struct fc_host_attrs *)(x)->shost_data)->supported_classes)
509 #define fc_host_supported_fc4s(x) \
510 (((struct fc_host_attrs *)(x)->shost_data)->supported_fc4s)
511 #define fc_host_supported_speeds(x) \
512 (((struct fc_host_attrs *)(x)->shost_data)->supported_speeds)
513 #define fc_host_maxframe_size(x) \
514 (((struct fc_host_attrs *)(x)->shost_data)->maxframe_size)
515 #define fc_host_max_npiv_vports(x) \
516 (((struct fc_host_attrs *)(x)->shost_data)->max_npiv_vports)
517 #define fc_host_serial_number(x) \
518 (((struct fc_host_attrs *)(x)->shost_data)->serial_number)
519 #define fc_host_port_id(x) \
520 (((struct fc_host_attrs *)(x)->shost_data)->port_id)
521 #define fc_host_port_type(x) \
522 (((struct fc_host_attrs *)(x)->shost_data)->port_type)
523 #define fc_host_port_state(x) \
524 (((struct fc_host_attrs *)(x)->shost_data)->port_state)
525 #define fc_host_active_fc4s(x) \
526 (((struct fc_host_attrs *)(x)->shost_data)->active_fc4s)
527 #define fc_host_speed(x) \
528 (((struct fc_host_attrs *)(x)->shost_data)->speed)
529 #define fc_host_fabric_name(x) \
530 (((struct fc_host_attrs *)(x)->shost_data)->fabric_name)
531 #define fc_host_symbolic_name(x) \
532 (((struct fc_host_attrs *)(x)->shost_data)->symbolic_name)
533 #define fc_host_system_hostname(x) \
534 (((struct fc_host_attrs *)(x)->shost_data)->system_hostname)
535 #define fc_host_tgtid_bind_type(x) \
536 (((struct fc_host_attrs *)(x)->shost_data)->tgtid_bind_type)
537 #define fc_host_rports(x) \
538 (((struct fc_host_attrs *)(x)->shost_data)->rports)
539 #define fc_host_rport_bindings(x) \
540 (((struct fc_host_attrs *)(x)->shost_data)->rport_bindings)
541 #define fc_host_vports(x) \
542 (((struct fc_host_attrs *)(x)->shost_data)->vports)
543 #define fc_host_next_rport_number(x) \
544 (((struct fc_host_attrs *)(x)->shost_data)->next_rport_number)
545 #define fc_host_next_target_id(x) \
546 (((struct fc_host_attrs *)(x)->shost_data)->next_target_id)
547 #define fc_host_next_vport_number(x) \
548 (((struct fc_host_attrs *)(x)->shost_data)->next_vport_number)
549 #define fc_host_npiv_vports_inuse(x) \
550 (((struct fc_host_attrs *)(x)->shost_data)->npiv_vports_inuse)
551 #define fc_host_work_q_name(x) \
552 (((struct fc_host_attrs *)(x)->shost_data)->work_q_name)
553 #define fc_host_work_q(x) \
554 (((struct fc_host_attrs *)(x)->shost_data)->work_q)
555 #define fc_host_devloss_work_q_name(x) \
556 (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
557 #define fc_host_devloss_work_q(x) \
558 (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
561 /* The functions by which the transport class and the driver communicate */
562 struct fc_function_template
{
563 void (*get_rport_dev_loss_tmo
)(struct fc_rport
*);
564 void (*set_rport_dev_loss_tmo
)(struct fc_rport
*, u32
);
566 void (*get_starget_node_name
)(struct scsi_target
*);
567 void (*get_starget_port_name
)(struct scsi_target
*);
568 void (*get_starget_port_id
)(struct scsi_target
*);
570 void (*get_host_port_id
)(struct Scsi_Host
*);
571 void (*get_host_port_type
)(struct Scsi_Host
*);
572 void (*get_host_port_state
)(struct Scsi_Host
*);
573 void (*get_host_active_fc4s
)(struct Scsi_Host
*);
574 void (*get_host_speed
)(struct Scsi_Host
*);
575 void (*get_host_fabric_name
)(struct Scsi_Host
*);
576 void (*get_host_symbolic_name
)(struct Scsi_Host
*);
577 void (*set_host_system_hostname
)(struct Scsi_Host
*);
579 struct fc_host_statistics
* (*get_fc_host_stats
)(struct Scsi_Host
*);
580 void (*reset_fc_host_stats
)(struct Scsi_Host
*);
582 int (*issue_fc_host_lip
)(struct Scsi_Host
*);
584 void (*dev_loss_tmo_callbk
)(struct fc_rport
*);
585 void (*terminate_rport_io
)(struct fc_rport
*);
587 void (*set_vport_symbolic_name
)(struct fc_vport
*);
588 int (*vport_create
)(struct fc_vport
*, bool);
589 int (*vport_disable
)(struct fc_vport
*, bool);
590 int (*vport_delete
)(struct fc_vport
*);
592 /* target-mode drivers' functions */
593 int (* tsk_mgmt_response
)(struct Scsi_Host
*, u64
, u64
, int);
594 int (* it_nexus_response
)(struct Scsi_Host
*, u64
, int);
596 /* allocation lengths for host-specific data */
601 * The driver sets these to tell the transport class it
602 * wants the attributes displayed in sysfs. If the show_ flag
603 * is not set, the attribute will be private to the transport
607 /* remote port fixed attributes */
608 unsigned long show_rport_maxframe_size
:1;
609 unsigned long show_rport_supported_classes
:1;
610 unsigned long show_rport_dev_loss_tmo
:1;
613 * target dynamic attributes
614 * These should all be "1" if the driver uses the remote port
615 * add/delete functions (so attributes reflect rport values).
617 unsigned long show_starget_node_name
:1;
618 unsigned long show_starget_port_name
:1;
619 unsigned long show_starget_port_id
:1;
621 /* host fixed attributes */
622 unsigned long show_host_node_name
:1;
623 unsigned long show_host_port_name
:1;
624 unsigned long show_host_permanent_port_name
:1;
625 unsigned long show_host_supported_classes
:1;
626 unsigned long show_host_supported_fc4s
:1;
627 unsigned long show_host_supported_speeds
:1;
628 unsigned long show_host_maxframe_size
:1;
629 unsigned long show_host_serial_number
:1;
630 /* host dynamic attributes */
631 unsigned long show_host_port_id
:1;
632 unsigned long show_host_port_type
:1;
633 unsigned long show_host_port_state
:1;
634 unsigned long show_host_active_fc4s
:1;
635 unsigned long show_host_speed
:1;
636 unsigned long show_host_fabric_name
:1;
637 unsigned long show_host_symbolic_name
:1;
638 unsigned long show_host_system_hostname
:1;
640 unsigned long disable_target_scan
:1;
645 * fc_remote_port_chkready - called to validate the remote port state
646 * prior to initiating io to the port.
648 * Returns a scsi result code that can be returned by the LLDD.
650 * @rport: remote port to be checked
653 fc_remote_port_chkready(struct fc_rport
*rport
)
657 switch (rport
->port_state
) {
658 case FC_PORTSTATE_ONLINE
:
659 if (rport
->roles
& FC_PORT_ROLE_FCP_TARGET
)
661 else if (rport
->flags
& FC_RPORT_DEVLOSS_PENDING
)
662 result
= DID_IMM_RETRY
<< 16;
664 result
= DID_NO_CONNECT
<< 16;
666 case FC_PORTSTATE_BLOCKED
:
667 result
= DID_IMM_RETRY
<< 16;
670 result
= DID_NO_CONNECT
<< 16;
676 static inline u64
wwn_to_u64(u8
*wwn
)
678 return (u64
)wwn
[0] << 56 | (u64
)wwn
[1] << 48 |
679 (u64
)wwn
[2] << 40 | (u64
)wwn
[3] << 32 |
680 (u64
)wwn
[4] << 24 | (u64
)wwn
[5] << 16 |
681 (u64
)wwn
[6] << 8 | (u64
)wwn
[7];
684 static inline void u64_to_wwn(u64 inm
, u8
*wwn
)
686 wwn
[0] = (inm
>> 56) & 0xff;
687 wwn
[1] = (inm
>> 48) & 0xff;
688 wwn
[2] = (inm
>> 40) & 0xff;
689 wwn
[3] = (inm
>> 32) & 0xff;
690 wwn
[4] = (inm
>> 24) & 0xff;
691 wwn
[5] = (inm
>> 16) & 0xff;
692 wwn
[6] = (inm
>> 8) & 0xff;
697 * fc_vport_set_state() - called to set a vport's state. Saves the old state,
698 * excepting the transitory states of initializing and sending the ELS
699 * traffic to instantiate the vport on the link.
701 * Assumes the driver has surrounded this with the proper locking to ensure
702 * a coherent state change.
704 * @vport: virtual port whose state is changing
705 * @new_state: new state
708 fc_vport_set_state(struct fc_vport
*vport
, enum fc_vport_state new_state
)
710 if ((new_state
!= FC_VPORT_UNKNOWN
) &&
711 (new_state
!= FC_VPORT_INITIALIZING
))
712 vport
->vport_last_state
= vport
->vport_state
;
713 vport
->vport_state
= new_state
;
717 struct scsi_transport_template
*fc_attach_transport(
718 struct fc_function_template
*);
719 void fc_release_transport(struct scsi_transport_template
*);
720 void fc_remove_host(struct Scsi_Host
*);
721 struct fc_rport
*fc_remote_port_add(struct Scsi_Host
*shost
,
722 int channel
, struct fc_rport_identifiers
*ids
);
723 void fc_remote_port_delete(struct fc_rport
*rport
);
724 void fc_remote_port_rolechg(struct fc_rport
*rport
, u32 roles
);
725 int scsi_is_fc_rport(const struct device
*);
726 u32
fc_get_event_number(void);
727 void fc_host_post_event(struct Scsi_Host
*shost
, u32 event_number
,
728 enum fc_host_event_code event_code
, u32 event_data
);
729 void fc_host_post_vendor_event(struct Scsi_Host
*shost
, u32 event_number
,
730 u32 data_len
, char * data_buf
, u64 vendor_id
);
731 /* Note: when specifying vendor_id to fc_host_post_vendor_event()
732 * be sure to read the Vendor Type and ID formatting requirements
733 * specified in scsi_netlink.h
735 int fc_vport_terminate(struct fc_vport
*vport
);
737 #endif /* SCSI_TRANSPORT_FC_H */