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
fcoe_ctlr_device_priv(const struct fcoe_ctlr_device * ctlr)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 */
134