1  /* SPDX-License-Identifier: GPL-2.0-only */
2  /*
3   * Copyright (c) 2011-2012 Intel Corporation.  All rights reserved.
4   *
5   * Maintained at www.Open-FCoE.org
6   */
7  
8  #ifndef FCOE_SYSFS
9  #define FCOE_SYSFS
10  
11  #include <linux/if_ether.h>
12  #include <linux/device.h>
13  #include <scsi/fc/fc_fcoe.h>
14  
15  struct fcoe_ctlr_device;
16  struct fcoe_fcf_device;
17  
18  struct fcoe_sysfs_function_template {
19  	void (*get_fcoe_ctlr_link_fail)(struct fcoe_ctlr_device *);
20  	void (*get_fcoe_ctlr_vlink_fail)(struct fcoe_ctlr_device *);
21  	void (*get_fcoe_ctlr_miss_fka)(struct fcoe_ctlr_device *);
22  	void (*get_fcoe_ctlr_symb_err)(struct fcoe_ctlr_device *);
23  	void (*get_fcoe_ctlr_err_block)(struct fcoe_ctlr_device *);
24  	void (*get_fcoe_ctlr_fcs_error)(struct fcoe_ctlr_device *);
25  	void (*set_fcoe_ctlr_mode)(struct fcoe_ctlr_device *);
26  	int  (*set_fcoe_ctlr_enabled)(struct fcoe_ctlr_device *);
27  	void (*get_fcoe_fcf_selected)(struct fcoe_fcf_device *);
28  	void (*get_fcoe_fcf_vlan_id)(struct fcoe_fcf_device *);
29  };
30  
31  #define dev_to_ctlr(d)					\
32  	container_of((d), struct fcoe_ctlr_device, dev)
33  
34  enum fip_conn_type {
35  	FIP_CONN_TYPE_UNKNOWN,
36  	FIP_CONN_TYPE_FABRIC,
37  	FIP_CONN_TYPE_VN2VN,
38  };
39  
40  enum ctlr_enabled_state {
41  	FCOE_CTLR_ENABLED,
42  	FCOE_CTLR_DISABLED,
43  	FCOE_CTLR_UNUSED,
44  };
45  
46  struct fcoe_ctlr_device {
47  	u32				id;
48  
49  	struct device			dev;
50  	struct fcoe_sysfs_function_template *f;
51  
52  	struct list_head		fcfs;
53  	struct workqueue_struct		*work_q;
54  	struct workqueue_struct		*devloss_work_q;
55  	struct mutex			lock;
56  
57  	int                             fcf_dev_loss_tmo;
58  	enum fip_conn_type              mode;
59  
60  	enum ctlr_enabled_state         enabled;
61  
62  	/* expected in host order for displaying */
63  	struct fcoe_fc_els_lesb         lesb;
64  };
65  
fcoe_ctlr_device_priv(const struct fcoe_ctlr_device * ctlr)66  static inline void *fcoe_ctlr_device_priv(const struct fcoe_ctlr_device *ctlr)
67  {
68  	return (void *)(ctlr + 1);
69  }
70  
71  /* fcf states */
72  enum fcf_state {
73  	FCOE_FCF_STATE_UNKNOWN,
74  	FCOE_FCF_STATE_DISCONNECTED,
75  	FCOE_FCF_STATE_CONNECTED,
76  	FCOE_FCF_STATE_DELETED,
77  };
78  
79  struct fcoe_fcf_device {
80  	u32		    id;
81  	struct device	    dev;
82  	struct list_head    peers;
83  	struct work_struct  delete_work;
84  	struct delayed_work dev_loss_work;
85  	u32		    dev_loss_tmo;
86  	void                *priv;
87  	enum fcf_state      state;
88  
89  	u64                 fabric_name;
90  	u64                 switch_name;
91  	u32                 fc_map;
92  	u16                 vfid;
93  	u8                  mac[ETH_ALEN];
94  	u8                  priority;
95  	u32                 fka_period;
96  	u8                  selected;
97  	u16                 vlan_id;
98  };
99  
100  #define dev_to_fcf(d)					\
101  	container_of((d), struct fcoe_fcf_device, dev)
102  /* parentage should never be missing */
103  #define fcoe_fcf_dev_to_ctlr_dev(x)		\
104  	dev_to_ctlr((x)->dev.parent)
105  #define fcoe_fcf_device_priv(x)			\
106  	((x)->priv)
107  
108  struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
109  			    struct fcoe_sysfs_function_template *f,
110  			    int priv_size);
111  void fcoe_ctlr_device_delete(struct fcoe_ctlr_device *);
112  struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *,
113  					    struct fcoe_fcf_device *);
114  void fcoe_fcf_device_delete(struct fcoe_fcf_device *);
115  
116  int __init fcoe_sysfs_setup(void);
117  void __exit fcoe_sysfs_teardown(void);
118  
119  #endif /* FCOE_SYSFS */
120