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gerrit-public.fairphone.software / kernel / msm-5.4 / 1d6cff4fca4366d0529dbce170e0f33cfe213790 / . / drivers / net / ethernet / qlogic / qed / qed_ooo.h
blob: 7a0670a9a07486502c493cafa8d16779db71e733 [file] [log] [blame]
Yuval Mintz1d6cff42016-12-01 00:21:07 -0800[diff] [blame^]1/* QLogic qed NIC Driver
2 * Copyright (c) 2015 QLogic Corporation
3 *
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
6 * this source tree.
7 */
8
9#ifndef _QED_OOO_H
10#define _QED_OOO_H
11#include <linux/types.h>
12#include <linux/list.h>
13#include <linux/slab.h>
14#include "qed.h"
15
16#define QED_MAX_NUM_ISLES 256
17#define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
18
19#define QED_OOO_LEFT_BUF 0
20#define QED_OOO_RIGHT_BUF 1
21
22struct qed_ooo_buffer {
23 struct list_head list_entry;
24 void *rx_buffer_virt_addr;
25 dma_addr_t rx_buffer_phys_addr;
26 u32 rx_buffer_size;
27 u16 packet_length;
28 u16 parse_flags;
29 u16 vlan;
30 u8 placement_offset;
31};
32
33struct qed_ooo_isle {
34 struct list_head list_entry;
35 struct list_head buffers_list;
36};
37
38struct qed_ooo_archipelago {
39 struct list_head list_entry;
40 struct list_head isles_list;
41 u32 cid;
42};
43
44struct qed_ooo_history {
45 struct ooo_opaque *p_cqes;
46 u32 head_idx;
47 u32 num_of_cqes;
48};
49
50struct qed_ooo_info {
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;
59 u32 cur_isles_number;
60 u32 max_isles_number;
61 u32 gen_isles_number;
62};
63
64#if IS_ENABLED(CONFIG_QED_ISCSI)
65void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
66 struct qed_ooo_info *p_ooo_info,
67 struct ooo_opaque *p_cqe);
68
69struct qed_ooo_info *qed_ooo_alloc(struct qed_hwfn *p_hwfn);
70
71void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
72 struct qed_ooo_info *p_ooo_info,
73 u32 cid);
74
75void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
76 struct qed_ooo_info *p_ooo_info);
77
78void qed_ooo_setup(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info);
79
80void qed_ooo_free(struct qed_hwfn *p_hwfn, struct qed_ooo_info *p_ooo_info);
81
82void 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);
85
86struct qed_ooo_buffer *
87qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
88 struct qed_ooo_info *p_ooo_info);
89
90void 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);
93
94struct qed_ooo_buffer *
95qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
96 struct qed_ooo_info *p_ooo_info);
97
98void 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);
101
102void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
103 struct qed_ooo_info *p_ooo_info,
104 u32 cid,
105 u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
106
107void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
108 struct qed_ooo_info *p_ooo_info,
109 u32 cid,
110 u8 ooo_isle,
111 struct qed_ooo_buffer *p_buffer, u8 buffer_side);
112
113void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
114 struct qed_ooo_info *p_ooo_info, u32 cid,
115 u8 left_isle);
116#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
117static 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) {}
120
121static inline struct qed_ooo_info *qed_ooo_alloc(
122 struct qed_hwfn *p_hwfn) { return NULL; }
123
124static inline void
125qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
126 struct qed_ooo_info *p_ooo_info,
127 u32 cid) {}
128
129static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
130 struct qed_ooo_info *p_ooo_info)
131 {}
132
133static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn,
134 struct qed_ooo_info *p_ooo_info) {}
135
136static inline void qed_ooo_free(struct qed_hwfn *p_hwfn,
137 struct qed_ooo_info *p_ooo_info) {}
138
139static 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) {}
142
143static inline struct qed_ooo_buffer *
144qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
145 struct qed_ooo_info *p_ooo_info) { return NULL; }
146
147static 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,
150 u8 on_tail) {}
151
152static inline struct qed_ooo_buffer *
153qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
154 struct qed_ooo_info *p_ooo_info) { return NULL; }
155
156static 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) {}
159
160static 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) {}
164
165static 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,
169 u8 buffer_side) {}
170
171static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
172 struct qed_ooo_info *p_ooo_info, u32 cid,
173 u8 left_isle) {}
174#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
175
176#endif