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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
45enum {
46 MLX4_IB_DB_PER_PAGE = PAGE_SIZE / 4
47};
48
49struct mlx4_ib_db_pgdir;
50struct mlx4_ib_user_db_page;
51
52struct 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
63struct 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
70struct mlx4_ib_pd {
71 struct ib_pd ibpd;
72 u32 pdn;
73};
74
75struct mlx4_ib_cq_buf {
76 struct mlx4_buf buf;
77 struct mlx4_mtt mtt;
78};
79
80struct 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
89struct mlx4_ib_mr {
90 struct ib_mr ibmr;
91 struct mlx4_mr mmr;
92 struct ib_umem *umem;
93};
94
95struct 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
106struct 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
129struct 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
144struct mlx4_ib_ah {
145 struct ib_ah ibah;
146 struct mlx4_av av;
147};
148
149struct 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
168static 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
173static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
174{
175 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
176}
177
178static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
179{
180 return container_of(ibpd, struct mlx4_ib_pd, ibpd);
181}
182
183static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
184{
185 return container_of(ibcq, struct mlx4_ib_cq, ibcq);
186}
187
188static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
189{
190 return container_of(mcq, struct mlx4_ib_cq, mcq);
191}
192
193static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
194{
195 return container_of(ibmr, struct mlx4_ib_mr, ibmr);
196}
197
198static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
199{
200 return container_of(ibqp, struct mlx4_ib_qp, ibqp);
201}
202
203static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
204{
205 return container_of(mqp, struct mlx4_ib_qp, mqp);
206}
207
208static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
209{
210 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
211}
212
213static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
214{
215 return container_of(msrq, struct mlx4_ib_srq, msrq);
216}
217
218static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
219{
220 return container_of(ibah, struct mlx4_ib_ah, ibah);
221}
222
223int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int order);
224void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db);
225int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
226 struct mlx4_ib_db *db);
227void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db *db);
228
229struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
230int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
231 struct ib_umem *umem);
232struct 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);
235int mlx4_ib_dereg_mr(struct ib_mr *mr);
236
237struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
238 struct ib_ucontext *context,
239 struct ib_udata *udata);
240int mlx4_ib_destroy_cq(struct ib_cq *cq);
241int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
242int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
243void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
244void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
245
246struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
247int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
248int mlx4_ib_destroy_ah(struct ib_ah *ah);
249
250struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
251 struct ib_srq_init_attr *init_attr,
252 struct ib_udata *udata);
253int 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);
255int mlx4_ib_destroy_srq(struct ib_srq *srq);
256void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
257int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
258 struct ib_recv_wr **bad_wr);
259
260struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
261 struct ib_qp_init_attr *init_attr,
262 struct ib_udata *udata);
263int mlx4_ib_destroy_qp(struct ib_qp *qp);
264int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
265 int attr_mask, struct ib_udata *udata);
266int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
267 struct ib_send_wr **bad_wr);
268int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
269 struct ib_recv_wr **bad_wr);
270
271int 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);
274int 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);
277int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
278void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
279
280static 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 */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-04 08:35:59 -0500