xref: /openbmc/linux/drivers/scsi/lpfc/lpfc_vport.h (revision bef7a78d)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term *
5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
6  * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
7  * EMULEX and SLI are trademarks of Emulex.                        *
8  * www.broadcom.com                                                *
9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
10  *                                                                 *
11  * This program is free software; you can redistribute it and/or   *
12  * modify it under the terms of version 2 of the GNU General       *
13  * Public License as published by the Free Software Foundation.    *
14  * This program is distributed in the hope that it will be useful. *
15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
20  * more details, a copy of which can be found in the file COPYING  *
21  * included with this package.                                     *
22  *******************************************************************/
23 
24 #ifndef _H_LPFC_VPORT
25 #define _H_LPFC_VPORT
26 
27 /* API version values (each will be an individual bit) */
28 #define VPORT_API_VERSION_1	0x01
29 
30 /* Values returned via lpfc_vport_getinfo() */
31 struct vport_info {
32 
33 	uint32_t api_versions;
34 	uint8_t linktype;
35 #define  VPORT_TYPE_PHYSICAL	0
36 #define  VPORT_TYPE_VIRTUAL	1
37 
38 	uint8_t state;
39 #define  VPORT_STATE_OFFLINE	0
40 #define  VPORT_STATE_ACTIVE	1
41 #define  VPORT_STATE_FAILED	2
42 
43 	uint8_t fail_reason;
44 	uint8_t prev_fail_reason;
45 #define  VPORT_FAIL_UNKNOWN	0
46 #define  VPORT_FAIL_LINKDOWN	1
47 #define  VPORT_FAIL_FAB_UNSUPPORTED	2
48 #define  VPORT_FAIL_FAB_NORESOURCES	3
49 #define  VPORT_FAIL_FAB_LOGOUT	4
50 #define  VPORT_FAIL_ADAP_NORESOURCES	5
51 
52 	uint8_t node_name[8];	/* WWNN */
53 	uint8_t port_name[8];	/* WWPN */
54 
55 	struct Scsi_Host *shost;
56 
57 /* Following values are valid only on physical links */
58 	uint32_t vports_max;
59 	uint32_t vports_inuse;
60 	uint32_t rpi_max;
61 	uint32_t rpi_inuse;
62 #define  VPORT_CNT_INVALID	0xFFFFFFFF
63 };
64 
65 /* data used  in link creation */
66 struct vport_data {
67 	uint32_t api_version;
68 
69 	uint32_t options;
70 #define  VPORT_OPT_AUTORETRY	0x01
71 
72 	uint8_t node_name[8];	/* WWNN */
73 	uint8_t port_name[8];	/* WWPN */
74 
75 /*
76  *  Upon successful creation, vport_shost will point to the new Scsi_Host
77  *  structure for the new virtual link.
78  */
79 	struct Scsi_Host *vport_shost;
80 };
81 
82 /* API function return codes */
83 #define VPORT_OK	0
84 #define VPORT_ERROR	-1
85 #define VPORT_INVAL	-2
86 #define VPORT_NOMEM	-3
87 #define VPORT_NORESOURCES	-4
88 
89 int lpfc_vport_create(struct fc_vport *, bool);
90 int lpfc_vport_delete(struct fc_vport *);
91 int lpfc_vport_getinfo(struct Scsi_Host *, struct vport_info *);
92 int lpfc_vport_tgt_remove(struct Scsi_Host *, uint, uint);
93 struct lpfc_vport **lpfc_create_vport_work_array(struct lpfc_hba *);
94 void lpfc_destroy_vport_work_array(struct lpfc_hba *, struct lpfc_vport **);
95 int lpfc_alloc_vpi(struct lpfc_hba *phba);
96 
97 /*
98  *  queuecommand  VPORT-specific return codes. Specified in  the host byte code.
99  *  Returned when the virtual link has failed or is not active.
100  */
101 #define  DID_VPORT_ERROR	0x0f
102 
103 #define VPORT_INFO	0x1
104 #define VPORT_CREATE	0x2
105 #define VPORT_DELETE	0x4
106 
107 struct vport_cmd_tag {
108 	uint32_t cmd;
109 	struct vport_data cdata;
110 	struct vport_info cinfo;
111 	void *vport;
112 	int vport_num;
113 };
114 
115 void lpfc_vport_set_state(struct lpfc_vport *vport,
116 			  enum fc_vport_state new_state);
117 
118 void lpfc_vport_reset_stat_data(struct lpfc_vport *);
119 void lpfc_alloc_bucket(struct lpfc_vport *);
120 void lpfc_free_bucket(struct lpfc_vport *);
121 
122 #endif /* H_LPFC_VPORT */
123