IB/core: Move CM_xxx_ATTR_ID macros from cm_msgs.h to ib_cm.h
[deliverable/linux.git] / drivers / infiniband / hw / mlx4 / mlx4_ib.h
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1/*
2 * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved.
51a379d0 3 * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
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4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
34#ifndef MLX4_IB_H
35#define MLX4_IB_H
36
37#include <linux/compiler.h>
38#include <linux/list.h>
63019d93 39#include <linux/mutex.h>
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40
41#include <rdma/ib_verbs.h>
42#include <rdma/ib_umem.h>
43
44#include <linux/mlx4/device.h>
45#include <linux/mlx4/doorbell.h>
46
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47#define MLX4_IB_DRV_NAME "mlx4_ib"
48
49#ifdef pr_fmt
50#undef pr_fmt
51#endif
52#define pr_fmt(fmt) "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
53
54#define mlx4_ib_warn(ibdev, format, arg...) \
55 dev_warn((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
56
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57enum {
58 MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
59 MLX4_IB_MAX_HEADROOM = 2048
60};
61
62#define MLX4_IB_SQ_HEADROOM(shift) ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
63#define MLX4_IB_SQ_MAX_SPARE (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
64
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65struct mlx4_ib_ucontext {
66 struct ib_ucontext ibucontext;
67 struct mlx4_uar uar;
68 struct list_head db_page_list;
69 struct mutex db_page_mutex;
70};
71
72struct mlx4_ib_pd {
73 struct ib_pd ibpd;
74 u32 pdn;
75};
76
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77struct mlx4_ib_xrcd {
78 struct ib_xrcd ibxrcd;
79 u32 xrcdn;
80 struct ib_pd *pd;
81 struct ib_cq *cq;
82};
83
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84struct mlx4_ib_cq_buf {
85 struct mlx4_buf buf;
86 struct mlx4_mtt mtt;
87};
88
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89struct mlx4_ib_cq_resize {
90 struct mlx4_ib_cq_buf buf;
91 int cqe;
92};
93
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94struct mlx4_ib_cq {
95 struct ib_cq ibcq;
96 struct mlx4_cq mcq;
97 struct mlx4_ib_cq_buf buf;
bbf8eed1 98 struct mlx4_ib_cq_resize *resize_buf;
6296883c 99 struct mlx4_db db;
225c7b1f 100 spinlock_t lock;
bbf8eed1 101 struct mutex resize_mutex;
225c7b1f 102 struct ib_umem *umem;
bbf8eed1 103 struct ib_umem *resize_umem;
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104};
105
106struct mlx4_ib_mr {
107 struct ib_mr ibmr;
108 struct mlx4_mr mmr;
109 struct ib_umem *umem;
110};
111
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112struct mlx4_ib_fast_reg_page_list {
113 struct ib_fast_reg_page_list ibfrpl;
2b6b7d4b 114 __be64 *mapped_page_list;
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115 dma_addr_t map;
116};
117
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118struct mlx4_ib_fmr {
119 struct ib_fmr ibfmr;
120 struct mlx4_fmr mfmr;
121};
122
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123struct mlx4_ib_wq {
124 u64 *wrid;
125 spinlock_t lock;
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126 int wqe_cnt;
127 int max_post;
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128 int max_gs;
129 int offset;
130 int wqe_shift;
131 unsigned head;
132 unsigned tail;
133};
134
b832be1e 135enum mlx4_ib_qp_flags {
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136 MLX4_IB_QP_LSO = 1 << 0,
137 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = 1 << 1,
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138};
139
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140struct mlx4_ib_gid_entry {
141 struct list_head list;
142 union ib_gid gid;
143 int added;
144 u8 port;
145};
146
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147struct mlx4_ib_qp {
148 struct ib_qp ibqp;
149 struct mlx4_qp mqp;
150 struct mlx4_buf buf;
151
6296883c 152 struct mlx4_db db;
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153 struct mlx4_ib_wq rq;
154
155 u32 doorbell_qpn;
156 __be32 sq_signal_bits;
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157 unsigned sq_next_wqe;
158 int sq_max_wqes_per_wr;
0e6e7416 159 int sq_spare_wqes;
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160 struct mlx4_ib_wq sq;
161
162 struct ib_umem *umem;
163 struct mlx4_mtt mtt;
164 int buf_size;
165 struct mutex mutex;
0a1405da 166 u16 xrcdn;
b832be1e 167 u32 flags;
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168 u8 port;
169 u8 alt_port;
170 u8 atomic_rd_en;
171 u8 resp_depth;
0e6e7416 172 u8 sq_no_prefetch;
225c7b1f 173 u8 state;
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174 int mlx_type;
175 struct list_head gid_list;
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176};
177
178struct mlx4_ib_srq {
179 struct ib_srq ibsrq;
180 struct mlx4_srq msrq;
181 struct mlx4_buf buf;
6296883c 182 struct mlx4_db db;
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183 u64 *wrid;
184 spinlock_t lock;
185 int head;
186 int tail;
187 u16 wqe_ctr;
188 struct ib_umem *umem;
189 struct mlx4_mtt mtt;
190 struct mutex mutex;
191};
192
193struct mlx4_ib_ah {
194 struct ib_ah ibah;
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195 union mlx4_ext_av av;
196};
197
198struct mlx4_ib_iboe {
199 spinlock_t lock;
200 struct net_device *netdevs[MLX4_MAX_PORTS];
201 struct notifier_block nb;
202 union ib_gid gid_table[MLX4_MAX_PORTS][128];
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203};
204
205struct mlx4_ib_dev {
206 struct ib_device ib_dev;
207 struct mlx4_dev *dev;
7ff93f8b 208 int num_ports;
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209 void __iomem *uar_map;
210
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211 struct mlx4_uar priv_uar;
212 u32 priv_pdn;
213 MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
214
215 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2];
216 struct ib_ah *sm_ah[MLX4_MAX_PORTS];
217 spinlock_t sm_lock;
218
219 struct mutex cap_mask_mutex;
3b4a8cd5 220 bool ib_active;
fa417f7b 221 struct mlx4_ib_iboe iboe;
cfcde11c 222 int counters[MLX4_MAX_PORTS];
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223 int *eq_table;
224 int eq_added;
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225};
226
227static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
228{
229 return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
230}
231
232static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
233{
234 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
235}
236
237static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
238{
239 return container_of(ibpd, struct mlx4_ib_pd, ibpd);
240}
241
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242static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
243{
244 return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
245}
246
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247static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
248{
249 return container_of(ibcq, struct mlx4_ib_cq, ibcq);
250}
251
252static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
253{
254 return container_of(mcq, struct mlx4_ib_cq, mcq);
255}
256
257static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
258{
259 return container_of(ibmr, struct mlx4_ib_mr, ibmr);
260}
261
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262static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl)
263{
264 return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl);
265}
266
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267static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
268{
269 return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
270}
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271static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
272{
273 return container_of(ibqp, struct mlx4_ib_qp, ibqp);
274}
275
276static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
277{
278 return container_of(mqp, struct mlx4_ib_qp, mqp);
279}
280
281static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
282{
283 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
284}
285
286static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
287{
288 return container_of(msrq, struct mlx4_ib_srq, msrq);
289}
290
291static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
292{
293 return container_of(ibah, struct mlx4_ib_ah, ibah);
294}
295
225c7b1f 296int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
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297 struct mlx4_db *db);
298void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
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299
300struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
301int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
302 struct ib_umem *umem);
303struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
304 u64 virt_addr, int access_flags,
305 struct ib_udata *udata);
306int mlx4_ib_dereg_mr(struct ib_mr *mr);
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307struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
308 int max_page_list_len);
309struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev,
310 int page_list_len);
311void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list);
225c7b1f 312
3fdcb97f 313int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
bbf8eed1 314int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
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315struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
316 struct ib_ucontext *context,
317 struct ib_udata *udata);
318int mlx4_ib_destroy_cq(struct ib_cq *cq);
319int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
320int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
321void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
322void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
323
324struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
325int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
326int mlx4_ib_destroy_ah(struct ib_ah *ah);
327
328struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
329 struct ib_srq_init_attr *init_attr,
330 struct ib_udata *udata);
331int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
332 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
65541cb7 333int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
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334int mlx4_ib_destroy_srq(struct ib_srq *srq);
335void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
336int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
337 struct ib_recv_wr **bad_wr);
338
339struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
340 struct ib_qp_init_attr *init_attr,
341 struct ib_udata *udata);
342int mlx4_ib_destroy_qp(struct ib_qp *qp);
343int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
344 int attr_mask, struct ib_udata *udata);
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345int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
346 struct ib_qp_init_attr *qp_init_attr);
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347int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
348 struct ib_send_wr **bad_wr);
349int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
350 struct ib_recv_wr **bad_wr);
351
352int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
353 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
354 void *in_mad, void *response_mad);
355int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
356 struct ib_wc *in_wc, struct ib_grh *in_grh,
357 struct ib_mad *in_mad, struct ib_mad *out_mad);
358int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
359void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
360
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361struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
362 struct ib_fmr_attr *fmr_attr);
363int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
364 u64 iova);
365int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
366int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
367
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368int mlx4_ib_resolve_grh(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah_attr,
369 u8 *mac, int *is_mcast, u8 port);
370
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371static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
372{
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373 u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
374
375 if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
376 return 1;
377
378 return !!(ah->av.ib.g_slid & 0x80);
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379}
380
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381int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
382 union ib_gid *gid);
383
225c7b1f 384#endif /* MLX4_IB_H */
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