Merge tag '5.2-smb3' of git://git.samba.org/sfrench/cifs-2.6
[sfrench/cifs-2.6.git] / include / scsi / fcoe_sysfs.h
1 /*
2  * Copyright (c) 2011-2012 Intel Corporation.  All rights reserved.
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms and conditions of the GNU General Public License,
6  * version 2, as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope it will be useful, but WITHOUT
9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11  * more details.
12  *
13  * You should have received a copy of the GNU General Public License along with
14  * this program; if not, write to the Free Software Foundation, Inc.,
15  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
16  *
17  * Maintained at www.Open-FCoE.org
18  */
19
20 #ifndef FCOE_SYSFS
21 #define FCOE_SYSFS
22
23 #include <linux/if_ether.h>
24 #include <linux/device.h>
25 #include <scsi/fc/fc_fcoe.h>
26
27 struct fcoe_ctlr_device;
28 struct fcoe_fcf_device;
29
30 struct fcoe_sysfs_function_template {
31         void (*get_fcoe_ctlr_link_fail)(struct fcoe_ctlr_device *);
32         void (*get_fcoe_ctlr_vlink_fail)(struct fcoe_ctlr_device *);
33         void (*get_fcoe_ctlr_miss_fka)(struct fcoe_ctlr_device *);
34         void (*get_fcoe_ctlr_symb_err)(struct fcoe_ctlr_device *);
35         void (*get_fcoe_ctlr_err_block)(struct fcoe_ctlr_device *);
36         void (*get_fcoe_ctlr_fcs_error)(struct fcoe_ctlr_device *);
37         void (*set_fcoe_ctlr_mode)(struct fcoe_ctlr_device *);
38         int  (*set_fcoe_ctlr_enabled)(struct fcoe_ctlr_device *);
39         void (*get_fcoe_fcf_selected)(struct fcoe_fcf_device *);
40         void (*get_fcoe_fcf_vlan_id)(struct fcoe_fcf_device *);
41 };
42
43 #define dev_to_ctlr(d)                                  \
44         container_of((d), struct fcoe_ctlr_device, dev)
45
46 enum fip_conn_type {
47         FIP_CONN_TYPE_UNKNOWN,
48         FIP_CONN_TYPE_FABRIC,
49         FIP_CONN_TYPE_VN2VN,
50 };
51
52 enum ctlr_enabled_state {
53         FCOE_CTLR_ENABLED,
54         FCOE_CTLR_DISABLED,
55         FCOE_CTLR_UNUSED,
56 };
57
58 struct fcoe_ctlr_device {
59         u32                             id;
60
61         struct device                   dev;
62         struct fcoe_sysfs_function_template *f;
63
64         struct list_head                fcfs;
65         char                            work_q_name[20];
66         struct workqueue_struct         *work_q;
67         char                            devloss_work_q_name[20];
68         struct workqueue_struct         *devloss_work_q;
69         struct mutex                    lock;
70
71         int                             fcf_dev_loss_tmo;
72         enum fip_conn_type              mode;
73
74         enum ctlr_enabled_state         enabled;
75
76         /* expected in host order for displaying */
77         struct fcoe_fc_els_lesb         lesb;
78 };
79
80 static inline void *fcoe_ctlr_device_priv(const struct fcoe_ctlr_device *ctlr)
81 {
82         return (void *)(ctlr + 1);
83 }
84
85 /* fcf states */
86 enum fcf_state {
87         FCOE_FCF_STATE_UNKNOWN,
88         FCOE_FCF_STATE_DISCONNECTED,
89         FCOE_FCF_STATE_CONNECTED,
90         FCOE_FCF_STATE_DELETED,
91 };
92
93 struct fcoe_fcf_device {
94         u32                 id;
95         struct device       dev;
96         struct list_head    peers;
97         struct work_struct  delete_work;
98         struct delayed_work dev_loss_work;
99         u32                 dev_loss_tmo;
100         void                *priv;
101         enum fcf_state      state;
102
103         u64                 fabric_name;
104         u64                 switch_name;
105         u32                 fc_map;
106         u16                 vfid;
107         u8                  mac[ETH_ALEN];
108         u8                  priority;
109         u32                 fka_period;
110         u8                  selected;
111         u16                 vlan_id;
112 };
113
114 #define dev_to_fcf(d)                                   \
115         container_of((d), struct fcoe_fcf_device, dev)
116 /* parentage should never be missing */
117 #define fcoe_fcf_dev_to_ctlr_dev(x)             \
118         dev_to_ctlr((x)->dev.parent)
119 #define fcoe_fcf_device_priv(x)                 \
120         ((x)->priv)
121
122 struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
123                             struct fcoe_sysfs_function_template *f,
124                             int priv_size);
125 void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *);
126 struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *,
127                                             struct fcoe_fcf_device *);
128 void fcoe_fcf_device_delete(struct fcoe_fcf_device *);
129
130 int __init fcoe_sysfs_setup(void);
131 void __exit fcoe_sysfs_teardown(void);
132
133 #endif /* FCOE_SYSFS */