mlx4_core: Add VLAN tag field to WQE control segment struct
[linux-2.6-block.git] / drivers / infiniband / hw / mlx4 / mlx4_ib.h
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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>
63019d93 38#include <linux/mutex.h>
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39
40#include <rdma/ib_verbs.h>
41#include <rdma/ib_umem.h>
42
43#include <linux/mlx4/device.h>
44#include <linux/mlx4/doorbell.h>
45
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46struct mlx4_ib_ucontext {
47 struct ib_ucontext ibucontext;
48 struct mlx4_uar uar;
49 struct list_head db_page_list;
50 struct mutex db_page_mutex;
51};
52
53struct mlx4_ib_pd {
54 struct ib_pd ibpd;
55 u32 pdn;
56};
57
58struct mlx4_ib_cq_buf {
59 struct mlx4_buf buf;
60 struct mlx4_mtt mtt;
61};
62
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63struct mlx4_ib_cq_resize {
64 struct mlx4_ib_cq_buf buf;
65 int cqe;
66};
67
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68struct mlx4_ib_cq {
69 struct ib_cq ibcq;
70 struct mlx4_cq mcq;
71 struct mlx4_ib_cq_buf buf;
bbf8eed1 72 struct mlx4_ib_cq_resize *resize_buf;
6296883c 73 struct mlx4_db db;
225c7b1f 74 spinlock_t lock;
bbf8eed1 75 struct mutex resize_mutex;
225c7b1f 76 struct ib_umem *umem;
bbf8eed1 77 struct ib_umem *resize_umem;
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78};
79
80struct mlx4_ib_mr {
81 struct ib_mr ibmr;
82 struct mlx4_mr mmr;
83 struct ib_umem *umem;
84};
85
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86struct mlx4_ib_fast_reg_page_list {
87 struct ib_fast_reg_page_list ibfrpl;
88 dma_addr_t map;
89};
90
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91struct mlx4_ib_fmr {
92 struct ib_fmr ibfmr;
93 struct mlx4_fmr mfmr;
94};
95
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96struct mlx4_ib_wq {
97 u64 *wrid;
98 spinlock_t lock;
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99 int wqe_cnt;
100 int max_post;
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101 int max_gs;
102 int offset;
103 int wqe_shift;
104 unsigned head;
105 unsigned tail;
106};
107
b832be1e 108enum mlx4_ib_qp_flags {
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109 MLX4_IB_QP_LSO = 1 << 0,
110 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = 1 << 1,
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111};
112
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113struct mlx4_ib_qp {
114 struct ib_qp ibqp;
115 struct mlx4_qp mqp;
116 struct mlx4_buf buf;
117
6296883c 118 struct mlx4_db db;
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119 struct mlx4_ib_wq rq;
120
121 u32 doorbell_qpn;
122 __be32 sq_signal_bits;
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123 unsigned sq_next_wqe;
124 int sq_max_wqes_per_wr;
0e6e7416 125 int sq_spare_wqes;
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126 struct mlx4_ib_wq sq;
127
128 struct ib_umem *umem;
129 struct mlx4_mtt mtt;
130 int buf_size;
131 struct mutex mutex;
b832be1e 132 u32 flags;
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133 u8 port;
134 u8 alt_port;
135 u8 atomic_rd_en;
136 u8 resp_depth;
0e6e7416 137 u8 sq_no_prefetch;
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138 u8 state;
139};
140
141struct mlx4_ib_srq {
142 struct ib_srq ibsrq;
143 struct mlx4_srq msrq;
144 struct mlx4_buf buf;
6296883c 145 struct mlx4_db db;
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146 u64 *wrid;
147 spinlock_t lock;
148 int head;
149 int tail;
150 u16 wqe_ctr;
151 struct ib_umem *umem;
152 struct mlx4_mtt mtt;
153 struct mutex mutex;
154};
155
156struct mlx4_ib_ah {
157 struct ib_ah ibah;
158 struct mlx4_av av;
159};
160
161struct mlx4_ib_dev {
162 struct ib_device ib_dev;
163 struct mlx4_dev *dev;
164 void __iomem *uar_map;
165
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166 struct mlx4_uar priv_uar;
167 u32 priv_pdn;
168 MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
169
170 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2];
171 struct ib_ah *sm_ah[MLX4_MAX_PORTS];
172 spinlock_t sm_lock;
173
174 struct mutex cap_mask_mutex;
175};
176
177static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
178{
179 return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
180}
181
182static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
183{
184 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
185}
186
187static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
188{
189 return container_of(ibpd, struct mlx4_ib_pd, ibpd);
190}
191
192static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
193{
194 return container_of(ibcq, struct mlx4_ib_cq, ibcq);
195}
196
197static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
198{
199 return container_of(mcq, struct mlx4_ib_cq, mcq);
200}
201
202static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
203{
204 return container_of(ibmr, struct mlx4_ib_mr, ibmr);
205}
206
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207static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl)
208{
209 return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl);
210}
211
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212static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
213{
214 return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
215}
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216static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
217{
218 return container_of(ibqp, struct mlx4_ib_qp, ibqp);
219}
220
221static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
222{
223 return container_of(mqp, struct mlx4_ib_qp, mqp);
224}
225
226static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
227{
228 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
229}
230
231static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
232{
233 return container_of(msrq, struct mlx4_ib_srq, msrq);
234}
235
236static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
237{
238 return container_of(ibah, struct mlx4_ib_ah, ibah);
239}
240
225c7b1f 241int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
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242 struct mlx4_db *db);
243void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
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244
245struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
246int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
247 struct ib_umem *umem);
248struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
249 u64 virt_addr, int access_flags,
250 struct ib_udata *udata);
251int mlx4_ib_dereg_mr(struct ib_mr *mr);
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252struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
253 int max_page_list_len);
254struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev,
255 int page_list_len);
256void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list);
225c7b1f 257
3fdcb97f 258int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
bbf8eed1 259int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
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260struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
261 struct ib_ucontext *context,
262 struct ib_udata *udata);
263int mlx4_ib_destroy_cq(struct ib_cq *cq);
264int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
265int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
266void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
267void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
268
269struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
270int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
271int mlx4_ib_destroy_ah(struct ib_ah *ah);
272
273struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
274 struct ib_srq_init_attr *init_attr,
275 struct ib_udata *udata);
276int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
277 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
65541cb7 278int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
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279int mlx4_ib_destroy_srq(struct ib_srq *srq);
280void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
281int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
282 struct ib_recv_wr **bad_wr);
283
284struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
285 struct ib_qp_init_attr *init_attr,
286 struct ib_udata *udata);
287int mlx4_ib_destroy_qp(struct ib_qp *qp);
288int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
289 int attr_mask, struct ib_udata *udata);
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290int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
291 struct ib_qp_init_attr *qp_init_attr);
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292int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
293 struct ib_send_wr **bad_wr);
294int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
295 struct ib_recv_wr **bad_wr);
296
297int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
298 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
299 void *in_mad, void *response_mad);
300int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
301 struct ib_wc *in_wc, struct ib_grh *in_grh,
302 struct ib_mad *in_mad, struct ib_mad *out_mad);
303int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
304void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
305
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306struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
307 struct ib_fmr_attr *fmr_attr);
308int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
309 u64 iova);
310int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
311int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
312
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313static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
314{
315 return !!(ah->av.g_slid & 0x80);
316}
317
318#endif /* MLX4_IB_H */