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>
39 #include <rdma/ib_verbs.h>
40 #include <rdma/ib_umem.h>
42 #include <linux/mlx4/device.h>
43 #include <linux/mlx4/doorbell.h>
46 MLX4_IB_DB_PER_PAGE = PAGE_SIZE / 4
49 struct mlx4_ib_db_pgdir;
50 struct mlx4_ib_user_db_page;
55 struct mlx4_ib_db_pgdir *pgdir;
56 struct mlx4_ib_user_db_page *user_page;
63 struct mlx4_ib_ucontext {
64 struct ib_ucontext ibucontext;
66 struct list_head db_page_list;
67 struct mutex db_page_mutex;
75 struct mlx4_ib_cq_buf {
83 struct mlx4_ib_cq_buf buf;
111 struct mlx4_ib_db db;
112 struct mlx4_ib_wq rq;
115 __be32 sq_signal_bits;
116 struct mlx4_ib_wq sq;
118 struct ib_umem *umem;
131 struct mlx4_srq msrq;
133 struct mlx4_ib_db db;
139 struct ib_umem *umem;
150 struct ib_device ib_dev;
151 struct mlx4_dev *dev;
152 void __iomem *uar_map;
154 struct list_head pgdir_list;
155 struct mutex pgdir_mutex;
157 struct mlx4_uar priv_uar;
159 MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
161 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2];
162 struct ib_ah *sm_ah[MLX4_MAX_PORTS];
165 struct mutex cap_mask_mutex;
168 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
170 return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
173 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
175 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
178 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
180 return container_of(ibpd, struct mlx4_ib_pd, ibpd);
183 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
185 return container_of(ibcq, struct mlx4_ib_cq, ibcq);
188 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
190 return container_of(mcq, struct mlx4_ib_cq, mcq);
193 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
195 return container_of(ibmr, struct mlx4_ib_mr, ibmr);
198 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
200 return container_of(ibqp, struct mlx4_ib_qp, ibqp);
203 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
205 return container_of(mqp, struct mlx4_ib_qp, mqp);
208 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
210 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
213 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
215 return container_of(msrq, struct mlx4_ib_srq, msrq);
218 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
220 return container_of(ibah, struct mlx4_ib_ah, ibah);
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);
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);
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);
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);
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);
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);
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);
280 static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
282 return !!(ah->av.g_slid & 0x80);
285 #endif /* MLX4_IB_H */