1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, v.1, (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://opensource.org/licenses/CDDL-1.0.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2014-2017 Cavium, Inc.
24 * The contents of this file are subject to the terms of the Common Development
25 * and Distribution License, v.1, (the "License").
26
27 * You may not use this file except in compliance with the License.
28
29 * You can obtain a copy of the License at available
30 * at http://opensource.org/licenses/CDDL-1.0
31
32 * See the License for the specific language governing permissions and
33 * limitations under the License.
34 */
35
36 #ifndef _QEDE_LIST_H
37 #define _QEDE_LIST_H
38
39 typedef struct qede_list_s {
40 struct qede_list_s *next;
41 struct qede_list_s *prev;
42 }qede_list_t;
43
44 typedef struct qede_mem_list_entry {
45 void *buf;
46 size_t size;
47 qede_list_t mem_entry;
48 } qede_mem_list_entry_t;
49
50 typedef struct qede_mem_list {
51 qede_list_t mem_list_head;
52 kmutex_t mem_list_lock;
53 } qede_mem_list_t;
54
55 typedef struct phys_mem_entry {
56 qede_list_t list_entry;
57 ddi_dma_handle_t dma_handle;
58 ddi_acc_handle_t dma_acc_handle;
59 size_t size;
60 void *virt_addr;
61 void *paddr;
62 } qede_phys_mem_entry_t;
63
64 typedef struct qede_phys_mem_list {
65 qede_list_t head;
66 kmutex_t lock;
67 } qede_phys_mem_list_t;
68
69 typedef struct qede_mcast_list_entry {
70 qede_list_t mclist_entry;
71 u8 *mac;
72 } qede_mcast_list_entry_t;
73
74 typedef struct qede_mcast_list {
75 qede_list_t head;
76 } qede_mcast_list_t;
77
78 typedef qede_list_t osal_list_t;
79 typedef qede_list_t osal_list_entry_t;
80
81 /*
82 * Linked list helpers
83 */
84 static inline void
85 QEDE_INIT_LIST_HEAD(qede_list_t *list)
86 {
87 list->next = list;
88 list->prev = list;
89 }
90
91 #define OSAL_LIST_INIT(_list_) QEDE_INIT_LIST_HEAD(_list_)
92
93 static inline void
94 qede_list_add(qede_list_t *new,
95 qede_list_t *prev,
96 qede_list_t *next)
97 {
98 next->prev = new;
99 new->next = next;
100 new->prev = prev;
101 prev->next = new;
102 }
103
104 static inline bool
105 qede_list_empty(qede_list_t *entry)
106 {
107 return (entry->next == entry);
108 }
109
110 static inline void
111 qede_list_del(qede_list_t *prev, qede_list_t *next)
112 {
113 next->prev = prev;
114 prev->next = next;
115 }
116
117 static inline void
118 QEDE_LIST_ADD(qede_list_t *new, qede_list_t *head)
119 {
120 qede_list_add(new, head, head->next);
121 }
122
123 static inline void
124 QEDE_LIST_ADD_TAIL(qede_list_t *new, qede_list_t *head)
125 {
126 qede_list_add(new, head->prev, head);
127 }
128
129 static inline void
130 QEDE_LIST_REMOVE(qede_list_t *entry, qede_list_t *head)
131 {
132 qede_list_del(entry->prev, entry->next);
133 }
134
135 static inline void
136 list_splice(const qede_list_t *list,
137 qede_list_t *prev,
138 qede_list_t *next)
139 {
140 qede_list_t *first = list->next;
141 qede_list_t *last = list->prev;
142
143 first->prev = prev;
144 prev->next = first;
145
146 last->next = next;
147 next->prev = last;
148 }
149
150 static inline void
151 qede_list_splice(qede_list_t *list,
152 qede_list_t *head)
153 {
154 if (!qede_list_empty(list)) {
155 list_splice(list, head, head->next);
156 }
157 }
158
159 static inline void
160 qede_list_splice_tail(qede_list_t *list,
161 qede_list_t *head)
162 {
163 if (!qede_list_empty(list)) {
164 list_splice(list, head->prev, head);
165 }
166 }
167
168 #define QEDE_LIST_IS_EMPTY qede_list_empty
169 #define QEDE_LIST_SPLICE qede_list_splice
170 #define QEDE_LIST_SPLICE_TAIL qede_list_splice_tail
171 #define QEDE_LIST_ENTRY qede_list_entry
172 #define QEDE_LIST_FIRST_ENTRY OSAL_LIST_FIRST_ENTRY
173 #define QEDE_LIST_EMPTY OSAL_LIST_IS_EMPTY
174 #define QEDE_LIST_FOR_EACH_ENTRY(_entry_, _list_, _type_, _member_) \
175 OSAL_LIST_FOR_EACH_ENTRY(_entry_, _list_, _member_, _type_)
176 #define QEDE_LIST_FOR_EACH_ENTRY_SAFE OSAL_LIST_FOR_EACH_ENTRY_SAFE
177
178 #endif /* !_QEDE_LIST_H */
179