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 	dcb = NULL;
49 }
50 
51 static inline int qlcnic_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
52 {
53 	if (dcb && dcb->ops->get_hw_capability)
54 		return dcb->ops->get_hw_capability(dcb);
55 
56 	return 0;
57 }
58 
59 static inline void qlcnic_dcb_free(struct qlcnic_dcb *dcb)
60 {
61 	if (dcb && dcb->ops->free)
62 		dcb->ops->free(dcb);
63 }
64 
65 static inline int qlcnic_dcb_attach(struct qlcnic_dcb *dcb)
66 {
67 	if (dcb && dcb->ops->attach)
68 		return dcb->ops->attach(dcb);
69 
70 	return 0;
71 }
72 
73 static inline int
74 qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *dcb, char *buf)
75 {
76 	if (dcb && dcb->ops->query_hw_capability)
77 		return dcb->ops->query_hw_capability(dcb, buf);
78 
79 	return 0;
80 }
81 
82 static inline void qlcnic_dcb_get_info(struct qlcnic_dcb *dcb)
83 {
84 	if (dcb && dcb->ops->get_info)
85 		dcb->ops->get_info(dcb);
86 }
87 
88 static inline int
89 qlcnic_dcb_query_cee_param(struct qlcnic_dcb *dcb, char *buf, u8 type)
90 {
91 	if (dcb && dcb->ops->query_cee_param)
92 		return dcb->ops->query_cee_param(dcb, buf, type);
93 
94 	return 0;
95 }
96 
97 static inline int qlcnic_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
98 {
99 	if (dcb && dcb->ops->get_cee_cfg)
100 		return dcb->ops->get_cee_cfg(dcb);
101 
102 	return 0;
103 }
104 
105 static inline void qlcnic_dcb_aen_handler(struct qlcnic_dcb *dcb, void *msg)
106 {
107 	if (dcb && dcb->ops->aen_handler)
108 		dcb->ops->aen_handler(dcb, msg);
109 }
110 
111 static inline void qlcnic_dcb_init_dcbnl_ops(struct qlcnic_dcb *dcb)
112 {
113 	if (dcb && dcb->ops->init_dcbnl_ops)
114 		dcb->ops->init_dcbnl_ops(dcb);
115 }
116 
117 static inline void qlcnic_dcb_enable(struct qlcnic_dcb *dcb)
118 {
119 	if (dcb && qlcnic_dcb_attach(dcb))
120 		qlcnic_clear_dcb_ops(dcb);
121 }
122 #endif
123