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1/* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef _QED_OOO_H
34#define _QED_OOO_H
35#include <linux/types.h>
36#include <linux/list.h>
37#include <linux/slab.h>
38#include "qed.h"
39
40#define QED_MAX_NUM_ISLES 256
41#define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
42
43#define QED_OOO_LEFT_BUF 0
44#define QED_OOO_RIGHT_BUF 1
45
46struct qed_ooo_buffer {
47 struct list_head list_entry;
48 void *rx_buffer_virt_addr;
49 dma_addr_t rx_buffer_phys_addr;
50 u32 rx_buffer_size;
51 u16 packet_length;
52 u16 parse_flags;
53 u16 vlan;
54 u8 placement_offset;
55};
56
57struct qed_ooo_isle {
58 struct list_head list_entry;
59 struct list_head buffers_list;
60};
61
62struct qed_ooo_archipelago {
63 struct list_head isles_list;
64};
65
66struct qed_ooo_history {
67 struct ooo_opaque *p_cqes;
68 u32 head_idx;
69 u32 num_of_cqes;
70};
71
72struct qed_ooo_info {
73 struct list_head free_buffers_list;
74 struct list_head ready_buffers_list;
75 struct list_head free_isles_list;
76 struct qed_ooo_archipelago *p_archipelagos_mem;
77 struct qed_ooo_isle *p_isles_mem;
78 struct qed_ooo_history ooo_history;
79 u32 cur_isles_number;
80 u32 max_isles_number;
81 u32 gen_isles_number;
82 u16 max_num_archipelagos;
83 u16 cid_base;
84};
85
86#if IS_ENABLED(CONFIG_QED_OOO)
87void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
88 struct qed_ooo_info *p_ooo_info,
89 struct ooo_opaque *p_cqe);
90
91int qed_ooo_alloc(struct qed_hwfn *p_hwfn);
92
93void qed_ooo_setup(struct qed_hwfn *p_hwfn);
94
95void qed_ooo_free(struct qed_hwfn *p_hwfn);
96
97void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
98 struct qed_ooo_info *p_ooo_info,
99 u32 cid);
100
101void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
102 struct qed_ooo_info *p_ooo_info);
103
104void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
105 struct qed_ooo_info *p_ooo_info,
106 struct qed_ooo_buffer *p_buffer);
107
108struct qed_ooo_buffer *
109qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
110 struct qed_ooo_info *p_ooo_info);
111
112void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
113 struct qed_ooo_info *p_ooo_info,
114 struct qed_ooo_buffer *p_buffer, u8 on_tail);
115
116struct qed_ooo_buffer *
117qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
118 struct qed_ooo_info *p_ooo_info);
119
120void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
121 struct qed_ooo_info *p_ooo_info,
122 u32 cid, u8 drop_isle, u8 drop_size);
123
124void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
125 struct qed_ooo_info *p_ooo_info,
126 u32 cid,
127 u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
128
129void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
130 struct qed_ooo_info *p_ooo_info,
131 u32 cid,
132 u8 ooo_isle,
133 struct qed_ooo_buffer *p_buffer, u8 buffer_side);
134
135void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
136 struct qed_ooo_info *p_ooo_info, u32 cid,
137 u8 left_isle);
138#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
139static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
140 struct qed_ooo_info *p_ooo_info,
141 struct ooo_opaque *p_cqe) {}
142
143static inline int qed_ooo_alloc(struct qed_hwfn *p_hwfn)
144{
145 return -EINVAL;
146}
147
148static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn) {}
149
150static inline void qed_ooo_free(struct qed_hwfn *p_hwfn) {}
151
152static inline void
153qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
154 struct qed_ooo_info *p_ooo_info,
155 u32 cid) {}
156
157static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
158 struct qed_ooo_info *p_ooo_info)
159 {}
160
161static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
162 struct qed_ooo_info *p_ooo_info,
163 struct qed_ooo_buffer *p_buffer) {}
164
165static inline struct qed_ooo_buffer *
166qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
167 struct qed_ooo_info *p_ooo_info) { return NULL; }
168
169static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
170 struct qed_ooo_info *p_ooo_info,
171 struct qed_ooo_buffer *p_buffer,
172 u8 on_tail) {}
173
174static inline struct qed_ooo_buffer *
175qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
176 struct qed_ooo_info *p_ooo_info) { return NULL; }
177
178static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
179 struct qed_ooo_info *p_ooo_info,
180 u32 cid, u8 drop_isle, u8 drop_size) {}
181
182static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
183 struct qed_ooo_info *p_ooo_info,
184 u32 cid, u8 ooo_isle,
185 struct qed_ooo_buffer *p_buffer) {}
186
187static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
188 struct qed_ooo_info *p_ooo_info,
189 u32 cid, u8 ooo_isle,
190 struct qed_ooo_buffer *p_buffer,
191 u8 buffer_side) {}
192
193static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
194 struct qed_ooo_info *p_ooo_info, u32 cid,
195 u8 left_isle) {}
196#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
197
198#endif
1/* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef _QED_OOO_H
34#define _QED_OOO_H
35#include <linux/types.h>
36#include <linux/list.h>
37#include <linux/slab.h>
38#include "qed.h"
39
40#define QED_MAX_NUM_ISLES 256
41#define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
42
43#define QED_OOO_LEFT_BUF 0
44#define QED_OOO_RIGHT_BUF 1
45
46struct qed_ooo_buffer {
47 struct list_head list_entry;
48 void *rx_buffer_virt_addr;
49 dma_addr_t rx_buffer_phys_addr;
50 u32 rx_buffer_size;
51 u16 packet_length;
52 u16 parse_flags;
53 u16 vlan;
54 u8 placement_offset;
55};
56
57struct qed_ooo_isle {
58 struct list_head list_entry;
59 struct list_head buffers_list;
60};
61
62struct qed_ooo_archipelago {
63 struct list_head isles_list;
64};
65
66struct qed_ooo_history {
67 struct ooo_opaque *p_cqes;
68 u32 head_idx;
69 u32 num_of_cqes;
70};
71
72struct qed_ooo_info {
73 struct list_head free_buffers_list;
74 struct list_head ready_buffers_list;
75 struct list_head free_isles_list;
76 struct qed_ooo_archipelago *p_archipelagos_mem;
77 struct qed_ooo_isle *p_isles_mem;
78 struct qed_ooo_history ooo_history;
79 u32 cur_isles_number;
80 u32 max_isles_number;
81 u32 gen_isles_number;
82 u16 max_num_archipelagos;
83 u16 cid_base;
84};
85
86#if IS_ENABLED(CONFIG_QED_OOO)
87void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
88 struct qed_ooo_info *p_ooo_info,
89 struct ooo_opaque *p_cqe);
90
91int qed_ooo_alloc(struct qed_hwfn *p_hwfn);
92
93void qed_ooo_setup(struct qed_hwfn *p_hwfn);
94
95void qed_ooo_free(struct qed_hwfn *p_hwfn);
96
97void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
98 struct qed_ooo_info *p_ooo_info,
99 u32 cid);
100
101void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
102 struct qed_ooo_info *p_ooo_info);
103
104void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
105 struct qed_ooo_info *p_ooo_info,
106 struct qed_ooo_buffer *p_buffer);
107
108struct qed_ooo_buffer *
109qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
110 struct qed_ooo_info *p_ooo_info);
111
112void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
113 struct qed_ooo_info *p_ooo_info,
114 struct qed_ooo_buffer *p_buffer, u8 on_tail);
115
116struct qed_ooo_buffer *
117qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
118 struct qed_ooo_info *p_ooo_info);
119
120void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
121 struct qed_ooo_info *p_ooo_info,
122 u32 cid, u8 drop_isle, u8 drop_size);
123
124void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
125 struct qed_ooo_info *p_ooo_info,
126 u32 cid,
127 u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
128
129void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
130 struct qed_ooo_info *p_ooo_info,
131 u32 cid,
132 u8 ooo_isle,
133 struct qed_ooo_buffer *p_buffer, u8 buffer_side);
134
135void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
136 struct qed_ooo_info *p_ooo_info, u32 cid,
137 u8 left_isle);
138#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
139static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
140 struct qed_ooo_info *p_ooo_info,
141 struct ooo_opaque *p_cqe) {}
142
143static inline int qed_ooo_alloc(struct qed_hwfn *p_hwfn)
144{
145 return -EINVAL;
146}
147
148static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn) {}
149
150static inline void qed_ooo_free(struct qed_hwfn *p_hwfn) {}
151
152static inline void
153qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
154 struct qed_ooo_info *p_ooo_info,
155 u32 cid) {}
156
157static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
158 struct qed_ooo_info *p_ooo_info)
159 {}
160
161static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
162 struct qed_ooo_info *p_ooo_info,
163 struct qed_ooo_buffer *p_buffer) {}
164
165static inline struct qed_ooo_buffer *
166qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
167 struct qed_ooo_info *p_ooo_info) { return NULL; }
168
169static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
170 struct qed_ooo_info *p_ooo_info,
171 struct qed_ooo_buffer *p_buffer,
172 u8 on_tail) {}
173
174static inline struct qed_ooo_buffer *
175qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
176 struct qed_ooo_info *p_ooo_info) { return NULL; }
177
178static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
179 struct qed_ooo_info *p_ooo_info,
180 u32 cid, u8 drop_isle, u8 drop_size) {}
181
182static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
183 struct qed_ooo_info *p_ooo_info,
184 u32 cid, u8 ooo_isle,
185 struct qed_ooo_buffer *p_buffer) {}
186
187static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
188 struct qed_ooo_info *p_ooo_info,
189 u32 cid, u8 ooo_isle,
190 struct qed_ooo_buffer *p_buffer,
191 u8 buffer_side) {}
192
193static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
194 struct qed_ooo_info *p_ooo_info, u32 cid,
195 u8 left_isle) {}
196#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
197
198#endif