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1 | /* |
2 | * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved. | |
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 MLX4_IB_H | |
34 | #define MLX4_IB_H | |
35 | ||
36 | #include <linux/compiler.h> | |
37 | #include <linux/list.h> | |
38 | ||
39 | #include <rdma/ib_verbs.h> | |
40 | #include <rdma/ib_umem.h> | |
41 | ||
42 | #include <linux/mlx4/device.h> | |
43 | #include <linux/mlx4/doorbell.h> | |
44 | ||
45 | enum { | |
46 | MLX4_IB_DB_PER_PAGE = PAGE_SIZE / 4 | |
47 | }; | |
48 | ||
49 | struct mlx4_ib_db_pgdir; | |
50 | struct mlx4_ib_user_db_page; | |
51 | ||
52 | struct mlx4_ib_db { | |
53 | __be32 *db; | |
54 | union { | |
55 | struct mlx4_ib_db_pgdir *pgdir; | |
56 | struct mlx4_ib_user_db_page *user_page; | |
57 | } u; | |
58 | dma_addr_t dma; | |
59 | int index; | |
60 | int order; | |
61 | }; | |
62 | ||
63 | struct mlx4_ib_ucontext { | |
64 | struct ib_ucontext ibucontext; | |
65 | struct mlx4_uar uar; | |
66 | struct list_head db_page_list; | |
67 | struct mutex db_page_mutex; | |
68 | }; | |
69 | ||
70 | struct mlx4_ib_pd { | |
71 | struct ib_pd ibpd; | |
72 | u32 pdn; | |
73 | }; | |
74 | ||
75 | struct mlx4_ib_cq_buf { | |
76 | struct mlx4_buf buf; | |
77 | struct mlx4_mtt mtt; | |
78 | }; | |
79 | ||
80 | struct mlx4_ib_cq { | |
81 | struct ib_cq ibcq; | |
82 | struct mlx4_cq mcq; | |
83 | struct mlx4_ib_cq_buf buf; | |
84 | struct mlx4_ib_db db; | |
85 | spinlock_t lock; | |
86 | struct ib_umem *umem; | |
87 | }; | |
88 | ||
89 | struct mlx4_ib_mr { | |
90 | struct ib_mr ibmr; | |
91 | struct mlx4_mr mmr; | |
92 | struct ib_umem *umem; | |
93 | }; | |
94 | ||
95 | struct mlx4_ib_wq { | |
96 | u64 *wrid; | |
97 | spinlock_t lock; | |
98 | int max; | |
99 | int max_gs; | |
100 | int offset; | |
101 | int wqe_shift; | |
102 | unsigned head; | |
103 | unsigned tail; | |
104 | }; | |
105 | ||
106 | struct mlx4_ib_qp { | |
107 | struct ib_qp ibqp; | |
108 | struct mlx4_qp mqp; | |
109 | struct mlx4_buf buf; | |
110 | ||
111 | struct mlx4_ib_db db; | |
112 | struct mlx4_ib_wq rq; | |
113 | ||
114 | u32 doorbell_qpn; | |
115 | __be32 sq_signal_bits; | |
116 | struct mlx4_ib_wq sq; | |
117 | ||
118 | struct ib_umem *umem; | |
119 | struct mlx4_mtt mtt; | |
120 | int buf_size; | |
121 | struct mutex mutex; | |
122 | u8 port; | |
123 | u8 alt_port; | |
124 | u8 atomic_rd_en; | |
125 | u8 resp_depth; | |
126 | u8 state; | |
127 | }; | |
128 | ||
129 | struct mlx4_ib_srq { | |
130 | struct ib_srq ibsrq; | |
131 | struct mlx4_srq msrq; | |
132 | struct mlx4_buf buf; | |
133 | struct mlx4_ib_db db; | |
134 | u64 *wrid; | |
135 | spinlock_t lock; | |
136 | int head; | |
137 | int tail; | |
138 | u16 wqe_ctr; | |
139 | struct ib_umem *umem; | |
140 | struct mlx4_mtt mtt; | |
141 | struct mutex mutex; | |
142 | }; | |
143 | ||
144 | struct mlx4_ib_ah { | |
145 | struct ib_ah ibah; | |
146 | struct mlx4_av av; | |
147 | }; | |
148 | ||
149 | struct mlx4_ib_dev { | |
150 | struct ib_device ib_dev; | |
151 | struct mlx4_dev *dev; | |
152 | void __iomem *uar_map; | |
153 | ||
154 | struct list_head pgdir_list; | |
155 | struct mutex pgdir_mutex; | |
156 | ||
157 | struct mlx4_uar priv_uar; | |
158 | u32 priv_pdn; | |
159 | MLX4_DECLARE_DOORBELL_LOCK(uar_lock); | |
160 | ||
161 | struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2]; | |
162 | struct ib_ah *sm_ah[MLX4_MAX_PORTS]; | |
163 | spinlock_t sm_lock; | |
164 | ||
165 | struct mutex cap_mask_mutex; | |
166 | }; | |
167 | ||
168 | static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev) | |
169 | { | |
170 | return container_of(ibdev, struct mlx4_ib_dev, ib_dev); | |
171 | } | |
172 | ||
173 | static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) | |
174 | { | |
175 | return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext); | |
176 | } | |
177 | ||
178 | static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd) | |
179 | { | |
180 | return container_of(ibpd, struct mlx4_ib_pd, ibpd); | |
181 | } | |
182 | ||
183 | static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq) | |
184 | { | |
185 | return container_of(ibcq, struct mlx4_ib_cq, ibcq); | |
186 | } | |
187 | ||
188 | static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq) | |
189 | { | |
190 | return container_of(mcq, struct mlx4_ib_cq, mcq); | |
191 | } | |
192 | ||
193 | static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr) | |
194 | { | |
195 | return container_of(ibmr, struct mlx4_ib_mr, ibmr); | |
196 | } | |
197 | ||
198 | static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp) | |
199 | { | |
200 | return container_of(ibqp, struct mlx4_ib_qp, ibqp); | |
201 | } | |
202 | ||
203 | static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp) | |
204 | { | |
205 | return container_of(mqp, struct mlx4_ib_qp, mqp); | |
206 | } | |
207 | ||
208 | static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq) | |
209 | { | |
210 | return container_of(ibsrq, struct mlx4_ib_srq, ibsrq); | |
211 | } | |
212 | ||
213 | static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq) | |
214 | { | |
215 | return container_of(msrq, struct mlx4_ib_srq, msrq); | |
216 | } | |
217 | ||
218 | static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah) | |
219 | { | |
220 | return container_of(ibah, struct mlx4_ib_ah, ibah); | |
221 | } | |
222 | ||
223 | int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int order); | |
224 | void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db); | |
225 | int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt, | |
226 | struct mlx4_ib_db *db); | |
227 | void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db *db); | |
228 | ||
229 | struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc); | |
230 | int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt, | |
231 | struct ib_umem *umem); | |
232 | struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, | |
233 | u64 virt_addr, int access_flags, | |
234 | struct ib_udata *udata); | |
235 | int mlx4_ib_dereg_mr(struct ib_mr *mr); | |
236 | ||
237 | struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector, | |
238 | struct ib_ucontext *context, | |
239 | struct ib_udata *udata); | |
240 | int mlx4_ib_destroy_cq(struct ib_cq *cq); | |
241 | int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); | |
242 | int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags); | |
243 | void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); | |
244 | void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); | |
245 | ||
246 | struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); | |
247 | int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr); | |
248 | int mlx4_ib_destroy_ah(struct ib_ah *ah); | |
249 | ||
250 | struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd, | |
251 | struct ib_srq_init_attr *init_attr, | |
252 | struct ib_udata *udata); | |
253 | int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, | |
254 | enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); | |
255 | int mlx4_ib_destroy_srq(struct ib_srq *srq); | |
256 | void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index); | |
257 | int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, | |
258 | struct ib_recv_wr **bad_wr); | |
259 | ||
260 | struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd, | |
261 | struct ib_qp_init_attr *init_attr, | |
262 | struct ib_udata *udata); | |
263 | int mlx4_ib_destroy_qp(struct ib_qp *qp); | |
264 | int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
265 | int attr_mask, struct ib_udata *udata); | |
266 | int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, | |
267 | struct ib_send_wr **bad_wr); | |
268 | int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, | |
269 | struct ib_recv_wr **bad_wr); | |
270 | ||
271 | int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey, | |
272 | int port, struct ib_wc *in_wc, struct ib_grh *in_grh, | |
273 | void *in_mad, void *response_mad); | |
274 | int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, | |
275 | struct ib_wc *in_wc, struct ib_grh *in_grh, | |
276 | struct ib_mad *in_mad, struct ib_mad *out_mad); | |
277 | int mlx4_ib_mad_init(struct mlx4_ib_dev *dev); | |
278 | void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev); | |
279 | ||
280 | static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah) | |
281 | { | |
282 | return !!(ah->av.g_slid & 0x80); | |
283 | } | |
284 | ||
285 | #endif /* MLX4_IB_H */ |