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fcoe_sysfs.h
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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 (*get_fcoe_ctlr_mode)(struct fcoe_ctlr_device *);
38  void (*get_fcoe_fcf_selected)(struct fcoe_fcf_device *);
39  void (*get_fcoe_fcf_vlan_id)(struct fcoe_fcf_device *);
40 };
41 
42 #define dev_to_ctlr(d) \
43  container_of((d), struct fcoe_ctlr_device, dev)
44 
45 enum fip_conn_type {
46  FIP_CONN_TYPE_UNKNOWN,
47  FIP_CONN_TYPE_FABRIC,
48  FIP_CONN_TYPE_VN2VN,
49 };
50 
51 struct fcoe_ctlr_device {
52  u32 id;
53 
54  struct device dev;
55  struct fcoe_sysfs_function_template *f;
56 
57  struct list_head fcfs;
58  char work_q_name[20];
59  struct workqueue_struct *work_q;
60  char devloss_work_q_name[20];
61  struct workqueue_struct *devloss_work_q;
62  struct mutex lock;
63 
64  int fcf_dev_loss_tmo;
65  enum fip_conn_type mode;
66 
67  /* expected in host order for displaying */
68  struct fcoe_fc_els_lesb lesb;
69 };
70 
71 static inline void *fcoe_ctlr_device_priv(const struct fcoe_ctlr_device *ctlr)
72 {
73  return (void *)(ctlr + 1);
74 }
75 
76 /* fcf states */
77 enum fcf_state {
78  FCOE_FCF_STATE_UNKNOWN,
79  FCOE_FCF_STATE_DISCONNECTED,
80  FCOE_FCF_STATE_CONNECTED,
81  FCOE_FCF_STATE_DELETED,
82 };
83 
84 struct fcoe_fcf_device {
85  u32 id;
86  struct device dev;
87  struct list_head peers;
88  struct work_struct delete_work;
89  struct delayed_work dev_loss_work;
90  u32 dev_loss_tmo;
91  void *priv;
92  enum fcf_state state;
93 
94  u64 fabric_name;
95  u64 switch_name;
96  u32 fc_map;
97  u16 vfid;
98  u8 mac[ETH_ALEN];
99  u8 priority;
100  u32 fka_period;
101  u8 selected;
102  u16 vlan_id;
103 };
104 
105 #define dev_to_fcf(d) \
106  container_of((d), struct fcoe_fcf_device, dev)
107 /* parentage should never be missing */
108 #define fcoe_fcf_dev_to_ctlr_dev(x) \
109  dev_to_ctlr((x)->dev.parent)
110 #define fcoe_fcf_device_priv(x) \
111  ((x)->priv)
112 
113 struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
114  struct fcoe_sysfs_function_template *f,
115  int priv_size);
116 void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *);
117 struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *,
118  struct fcoe_fcf_device *);
119 void fcoe_fcf_device_delete(struct fcoe_fcf_device *);
120 
121 int __init fcoe_sysfs_setup(void);
122 void __exit fcoe_sysfs_teardown(void);
123 
124 #endif /* FCOE_SYSFS */
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