1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015 QLogic Corporation
4 * This software is available under the terms of the GNU General Public License
5 * (GPL) Version 2, available from the file COPYING in the main directory of
11 #include <linux/types.h>
12 #include <linux/list.h>
13 #include <linux/slab.h>
16 #define QED_MAX_NUM_ISLES 256
17 #define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
19 #define QED_OOO_LEFT_BUF 0
20 #define QED_OOO_RIGHT_BUF 1
22 struct qed_ooo_buffer {
23 struct list_head list_entry;
24 void *rx_buffer_virt_addr;
25 dma_addr_t rx_buffer_phys_addr;
34 struct list_head list_entry;
35 struct list_head buffers_list;
38 struct qed_ooo_archipelago {
39 struct list_head list_entry;
40 struct list_head isles_list;
44 struct qed_ooo_history {
45 struct ooo_opaque *p_cqes;
51 struct list_head free_buffers_list;
52 struct list_head ready_buffers_list;
53 struct list_head free_isles_list;
54 struct list_head free_archipelagos_list;
55 struct list_head archipelagos_list;
56 struct qed_ooo_archipelago *p_archipelagos_mem;
57 struct qed_ooo_isle *p_isles_mem;
58 struct qed_ooo_history ooo_history;
64 #if IS_ENABLED(CONFIG_QED_ISCSI)
65 void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
66 struct qed_ooo_info *p_ooo_info,
67 struct ooo_opaque *p_cqe);
69 struct qed_ooo_info *qed_ooo_alloc(struct qed_hwfn *p_hwfn);
71 void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
72 struct qed_ooo_info *p_ooo_info,
75 void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
76 struct qed_ooo_info *p_ooo_info);
78 void qed_ooo_setup(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info);
80 void qed_ooo_free(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info);
82 void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
83 struct qed_ooo_info *p_ooo_info,
84 struct qed_ooo_buffer *p_buffer);
86 struct qed_ooo_buffer *
87 qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
88 struct qed_ooo_info *p_ooo_info);
90 void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
91 struct qed_ooo_info *p_ooo_info,
92 struct qed_ooo_buffer *p_buffer, u8 on_tail);
94 struct qed_ooo_buffer *
95 qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
96 struct qed_ooo_info *p_ooo_info);
98 void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
99 struct qed_ooo_info *p_ooo_info,
100 u32 cid, u8 drop_isle, u8 drop_size);
102 void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
103 struct qed_ooo_info *p_ooo_info,
105 u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
107 void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
108 struct qed_ooo_info *p_ooo_info,
111 struct qed_ooo_buffer *p_buffer, u8 buffer_side);
113 void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
114 struct qed_ooo_info *p_ooo_info, u32 cid,
116 #else /* IS_ENABLED(CONFIG_QED_ISCSI) */
117 static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
118 struct qed_ooo_info *p_ooo_info,
119 struct ooo_opaque *p_cqe) {}
121 static inline struct qed_ooo_info *qed_ooo_alloc(
122 struct qed_hwfn *p_hwfn) { return NULL; }
125 qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
126 struct qed_ooo_info *p_ooo_info,
129 static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
130 struct qed_ooo_info *p_ooo_info)
133 static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn,
134 struct qed_ooo_info *p_ooo_info) {}
136 static inline void qed_ooo_free(struct qed_hwfn *p_hwfn,
137 struct qed_ooo_info *p_ooo_info) {}
139 static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
140 struct qed_ooo_info *p_ooo_info,
141 struct qed_ooo_buffer *p_buffer) {}
143 static inline struct qed_ooo_buffer *
144 qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
145 struct qed_ooo_info *p_ooo_info) { return NULL; }
147 static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
148 struct qed_ooo_info *p_ooo_info,
149 struct qed_ooo_buffer *p_buffer,
152 static inline struct qed_ooo_buffer *
153 qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
154 struct qed_ooo_info *p_ooo_info) { return NULL; }
156 static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
157 struct qed_ooo_info *p_ooo_info,
158 u32 cid, u8 drop_isle, u8 drop_size) {}
160 static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
161 struct qed_ooo_info *p_ooo_info,
162 u32 cid, u8 ooo_isle,
163 struct qed_ooo_buffer *p_buffer) {}
165 static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
166 struct qed_ooo_info *p_ooo_info,
167 u32 cid, u8 ooo_isle,
168 struct qed_ooo_buffer *p_buffer,
171 static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
172 struct qed_ooo_info *p_ooo_info, u32 cid,
174 #endif /* IS_ENABLED(CONFIG_QED_ISCSI) */