2 * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
36 #include <linux/compiler.h>
37 #include <linux/list.h>
38 #include <linux/mutex.h>
40 #include <rdma/ib_verbs.h>
41 #include <rdma/ib_umem.h>
43 #include <linux/mlx4/device.h>
44 #include <linux/mlx4/doorbell.h>
47 MLX4_IB_DB_PER_PAGE = PAGE_SIZE / 4
50 struct mlx4_ib_db_pgdir;
51 struct mlx4_ib_user_db_page;
56 struct mlx4_ib_db_pgdir *pgdir;
57 struct mlx4_ib_user_db_page *user_page;
64 struct mlx4_ib_ucontext {
65 struct ib_ucontext ibucontext;
67 struct list_head db_page_list;
68 struct mutex db_page_mutex;
76 struct mlx4_ib_cq_buf {
84 struct mlx4_ib_cq_buf buf;
118 struct mlx4_ib_db db;
119 struct mlx4_ib_wq rq;
122 __be32 sq_signal_bits;
123 unsigned sq_next_wqe;
124 int sq_max_wqes_per_wr;
126 struct mlx4_ib_wq sq;
128 struct ib_umem *umem;
142 struct mlx4_srq msrq;
144 struct mlx4_ib_db db;
150 struct ib_umem *umem;
161 struct ib_device ib_dev;
162 struct mlx4_dev *dev;
163 void __iomem *uar_map;
165 struct list_head pgdir_list;
166 struct mutex pgdir_mutex;
168 struct mlx4_uar priv_uar;
170 MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
172 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2];
173 struct ib_ah *sm_ah[MLX4_MAX_PORTS];
176 struct mutex cap_mask_mutex;
179 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
181 return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
184 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
186 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
189 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
191 return container_of(ibpd, struct mlx4_ib_pd, ibpd);
194 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
196 return container_of(ibcq, struct mlx4_ib_cq, ibcq);
199 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
201 return container_of(mcq, struct mlx4_ib_cq, mcq);
204 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
206 return container_of(ibmr, struct mlx4_ib_mr, ibmr);
209 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
211 return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
213 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
215 return container_of(ibqp, struct mlx4_ib_qp, ibqp);
218 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
220 return container_of(mqp, struct mlx4_ib_qp, mqp);
223 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
225 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
228 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
230 return container_of(msrq, struct mlx4_ib_srq, msrq);
233 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
235 return container_of(ibah, struct mlx4_ib_ah, ibah);
238 int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int order);
239 void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db);
240 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
241 struct mlx4_ib_db *db);
242 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db *db);
244 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
245 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
246 struct ib_umem *umem);
247 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
248 u64 virt_addr, int access_flags,
249 struct ib_udata *udata);
250 int mlx4_ib_dereg_mr(struct ib_mr *mr);
252 struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
253 struct ib_ucontext *context,
254 struct ib_udata *udata);
255 int mlx4_ib_destroy_cq(struct ib_cq *cq);
256 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
257 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
258 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
259 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
261 struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
262 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
263 int mlx4_ib_destroy_ah(struct ib_ah *ah);
265 struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
266 struct ib_srq_init_attr *init_attr,
267 struct ib_udata *udata);
268 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
269 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
270 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
271 int mlx4_ib_destroy_srq(struct ib_srq *srq);
272 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
273 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
274 struct ib_recv_wr **bad_wr);
276 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
277 struct ib_qp_init_attr *init_attr,
278 struct ib_udata *udata);
279 int mlx4_ib_destroy_qp(struct ib_qp *qp);
280 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
281 int attr_mask, struct ib_udata *udata);
282 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
283 struct ib_qp_init_attr *qp_init_attr);
284 int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
285 struct ib_send_wr **bad_wr);
286 int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
287 struct ib_recv_wr **bad_wr);
289 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
290 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
291 void *in_mad, void *response_mad);
292 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
293 struct ib_wc *in_wc, struct ib_grh *in_grh,
294 struct ib_mad *in_mad, struct ib_mad *out_mad);
295 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
296 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
298 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
299 struct ib_fmr_attr *fmr_attr);
300 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
302 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
303 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
305 static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
307 return !!(ah->av.g_slid & 0x80);
310 #endif /* MLX4_IB_H */