1 /*
2  * QLogic qlcnic NIC Driver
3  * Copyright (c)  2009-2013 QLogic Corporation
4  *
5  * See LICENSE.qlcnic for copyright and licensing details.
6  */
7 
8 #ifndef __QLCNIC_DCBX_H
9 #define __QLCNIC_DCBX_H
10 
11 #define QLCNIC_DCB_STATE	0
12 #define QLCNIC_DCB_AEN_MODE	1
13 
14 #ifdef CONFIG_QLCNIC_DCB
15 int qlcnic_register_dcb(struct qlcnic_adapter *);
16 #else
17 static inline int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
18 { return 0; }
19 #endif
20 
21 struct qlcnic_dcb;
22 
23 struct qlcnic_dcb_ops {
24 	int (*query_hw_capability) (struct qlcnic_dcb *, char *);
25 	int (*get_hw_capability) (struct qlcnic_dcb *);
26 	int (*query_cee_param) (struct qlcnic_dcb *, char *, u8);
27 	void (*init_dcbnl_ops) (struct qlcnic_dcb *);
28 	void (*aen_handler) (struct qlcnic_dcb *, void *);
29 	int (*get_cee_cfg) (struct qlcnic_dcb *);
30 	void (*get_info) (struct qlcnic_dcb *);
31 	int (*attach) (struct qlcnic_dcb *);
32 	void (*free) (struct qlcnic_dcb *);
33 };
34 
35 struct qlcnic_dcb {
36 	struct qlcnic_dcb_mbx_params	*param;
37 	struct qlcnic_adapter		*adapter;
38 	struct delayed_work		aen_work;
39 	struct workqueue_struct		*wq;
40 	const struct qlcnic_dcb_ops	*ops;
41 	struct qlcnic_dcb_cfg		*cfg;
42 	unsigned long			state;
43 };
44 
45 static inline void qlcnic_clear_dcb_ops(struct qlcnic_dcb *dcb)
46 {
47 	kfree(dcb);
48 }
49 
50 static inline int qlcnic_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
51 {
52 	if (dcb && dcb->ops->get_hw_capability)
53 		return dcb->ops->get_hw_capability(dcb);
54 
55 	return 0;
56 }
57 
58 static inline void qlcnic_dcb_free(struct qlcnic_dcb *dcb)
59 {
60 	if (dcb && dcb->ops->free)
61 		dcb->ops->free(dcb);
62 }
63 
64 static inline int qlcnic_dcb_attach(struct qlcnic_dcb *dcb)
65 {
66 	if (dcb && dcb->ops->attach)
67 		return dcb->ops->attach(dcb);
68 
69 	return 0;
70 }
71 
72 static inline int
73 qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *dcb, char *buf)
74 {
75 	if (dcb && dcb->ops->query_hw_capability)
76 		return dcb->ops->query_hw_capability(dcb, buf);
77 
78 	return 0;
79 }
80 
81 static inline void qlcnic_dcb_get_info(struct qlcnic_dcb *dcb)
82 {
83 	if (dcb && dcb->ops->get_info)
84 		dcb->ops->get_info(dcb);
85 }
86 
87 static inline int
88 qlcnic_dcb_query_cee_param(struct qlcnic_dcb *dcb, char *buf, u8 type)
89 {
90 	if (dcb && dcb->ops->query_cee_param)
91 		return dcb->ops->query_cee_param(dcb, buf, type);
92 
93 	return 0;
94 }
95 
96 static inline int qlcnic_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
97 {
98 	if (dcb && dcb->ops->get_cee_cfg)
99 		return dcb->ops->get_cee_cfg(dcb);
100 
101 	return 0;
102 }
103 
104 static inline void qlcnic_dcb_aen_handler(struct qlcnic_dcb *dcb, void *msg)
105 {
106 	if (dcb && dcb->ops->aen_handler)
107 		dcb->ops->aen_handler(dcb, msg);
108 }
109 
110 static inline void qlcnic_dcb_init_dcbnl_ops(struct qlcnic_dcb *dcb)
111 {
112 	if (dcb && dcb->ops->init_dcbnl_ops)
113 		dcb->ops->init_dcbnl_ops(dcb);
114 }
115 
116 static inline void qlcnic_dcb_enable(struct qlcnic_dcb *dcb)
117 {
118 	if (dcb && qlcnic_dcb_attach(dcb))
119 		qlcnic_clear_dcb_ops(dcb);
120 }
121 #endif
122