xref: /linux/drivers/scsi/lpfc/lpfc_vport.h (revision bb9707077b4ee5f77bc9939b057ff8a0d410296f)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
5  * EMULEX and SLI are trademarks of Emulex.                        *
6  * www.emulex.com                                                  *
7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
8  *                                                                 *
9  * This program is free software; you can redistribute it and/or   *
10  * modify it under the terms of version 2 of the GNU General       *
11  * Public License as published by the Free Software Foundation.    *
12  * This program is distributed in the hope that it will be useful. *
13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
18  * more details, a copy of which can be found in the file COPYING  *
19  * included with this package.                                     *
20  *******************************************************************/
21 
22 #ifndef _H_LPFC_VPORT
23 #define _H_LPFC_VPORT
24 
25 /* API version values (each will be an individual bit) */
26 #define VPORT_API_VERSION_1	0x01
27 
28 /* Values returned via lpfc_vport_getinfo() */
29 struct vport_info {
30 
31 	uint32_t api_versions;
32 	uint8_t linktype;
33 #define  VPORT_TYPE_PHYSICAL	0
34 #define  VPORT_TYPE_VIRTUAL	1
35 
36 	uint8_t state;
37 #define  VPORT_STATE_OFFLINE	0
38 #define  VPORT_STATE_ACTIVE	1
39 #define  VPORT_STATE_FAILED	2
40 
41 	uint8_t fail_reason;
42 	uint8_t prev_fail_reason;
43 #define  VPORT_FAIL_UNKNOWN	0
44 #define  VPORT_FAIL_LINKDOWN	1
45 #define  VPORT_FAIL_FAB_UNSUPPORTED	2
46 #define  VPORT_FAIL_FAB_NORESOURCES	3
47 #define  VPORT_FAIL_FAB_LOGOUT	4
48 #define  VPORT_FAIL_ADAP_NORESOURCES	5
49 
50 	uint8_t node_name[8];	/* WWNN */
51 	uint8_t port_name[8];	/* WWPN */
52 
53 	struct Scsi_Host *shost;
54 
55 /* Following values are valid only on physical links */
56 	uint32_t vports_max;
57 	uint32_t vports_inuse;
58 	uint32_t rpi_max;
59 	uint32_t rpi_inuse;
60 #define  VPORT_CNT_INVALID	0xFFFFFFFF
61 };
62 
63 /* data used  in link creation */
64 struct vport_data {
65 	uint32_t api_version;
66 
67 	uint32_t options;
68 #define  VPORT_OPT_AUTORETRY	0x01
69 
70 	uint8_t node_name[8];	/* WWNN */
71 	uint8_t port_name[8];	/* WWPN */
72 
73 /*
74  *  Upon successful creation, vport_shost will point to the new Scsi_Host
75  *  structure for the new virtual link.
76  */
77 	struct Scsi_Host *vport_shost;
78 };
79 
80 /* API function return codes */
81 #define VPORT_OK	0
82 #define VPORT_ERROR	-1
83 #define VPORT_INVAL	-2
84 #define VPORT_NOMEM	-3
85 #define VPORT_NORESOURCES	-4
86 
87 int lpfc_vport_create(struct fc_vport *, bool);
88 int lpfc_vport_delete(struct fc_vport *);
89 int lpfc_vport_getinfo(struct Scsi_Host *, struct vport_info *);
90 int lpfc_vport_tgt_remove(struct Scsi_Host *, uint, uint);
91 struct lpfc_vport **lpfc_create_vport_work_array(struct lpfc_hba *);
92 void lpfc_destroy_vport_work_array(struct lpfc_hba *, struct lpfc_vport **);
93 int lpfc_alloc_vpi(struct lpfc_hba *phba);
94 
95 /*
96  *  queuecommand  VPORT-specific return codes. Specified in  the host byte code.
97  *  Returned when the virtual link has failed or is not active.
98  */
99 #define  DID_VPORT_ERROR	0x0f
100 
101 #define VPORT_INFO	0x1
102 #define VPORT_CREATE	0x2
103 #define VPORT_DELETE	0x4
104 
105 struct vport_cmd_tag {
106 	uint32_t cmd;
107 	struct vport_data cdata;
108 	struct vport_info cinfo;
109 	void *vport;
110 	int vport_num;
111 };
112 
113 void lpfc_vport_set_state(struct lpfc_vport *vport,
114 			  enum fc_vport_state new_state);
115 
116 void lpfc_vport_reset_stat_data(struct lpfc_vport *);
117 void lpfc_alloc_bucket(struct lpfc_vport *);
118 void lpfc_free_bucket(struct lpfc_vport *);
119 
120 #endif /* H_LPFC_VPORT */
121