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 {
81 struct mlx4_ib_cq_resize {
82 struct mlx4_ib_cq_buf buf;
89 struct mlx4_ib_cq_buf buf;
90 struct mlx4_ib_cq_resize *resize_buf;
93 struct mutex resize_mutex;
95 struct ib_umem *resize_umem;
101 struct ib_umem *umem;
106 struct mlx4_fmr mfmr;
121 enum mlx4_ib_qp_flags {
122 MLX4_IB_QP_LSO = 1 << 0
130 struct mlx4_ib_db db;
131 struct mlx4_ib_wq rq;
134 __be32 sq_signal_bits;
135 unsigned sq_next_wqe;
136 int sq_max_wqes_per_wr;
138 struct mlx4_ib_wq sq;
140 struct ib_umem *umem;
155 struct mlx4_srq msrq;
157 struct mlx4_ib_db db;
163 struct ib_umem *umem;
174 struct ib_device ib_dev;
175 struct mlx4_dev *dev;
176 void __iomem *uar_map;
178 struct list_head pgdir_list;
179 struct mutex pgdir_mutex;
181 struct mlx4_uar priv_uar;
183 MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
185 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2];
186 struct ib_ah *sm_ah[MLX4_MAX_PORTS];
189 struct mutex cap_mask_mutex;
192 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
194 return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
197 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
199 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
202 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
204 return container_of(ibpd, struct mlx4_ib_pd, ibpd);
207 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
209 return container_of(ibcq, struct mlx4_ib_cq, ibcq);
212 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
214 return container_of(mcq, struct mlx4_ib_cq, mcq);
217 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
219 return container_of(ibmr, struct mlx4_ib_mr, ibmr);
222 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
224 return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
226 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
228 return container_of(ibqp, struct mlx4_ib_qp, ibqp);
231 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
233 return container_of(mqp, struct mlx4_ib_qp, mqp);
236 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
238 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
241 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
243 return container_of(msrq, struct mlx4_ib_srq, msrq);
246 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
248 return container_of(ibah, struct mlx4_ib_ah, ibah);
251 int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int order);
252 void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db);
253 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
254 struct mlx4_ib_db *db);
255 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db *db);
257 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
258 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
259 struct ib_umem *umem);
260 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
261 u64 virt_addr, int access_flags,
262 struct ib_udata *udata);
263 int mlx4_ib_dereg_mr(struct ib_mr *mr);
265 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
266 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
267 struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
268 struct ib_ucontext *context,
269 struct ib_udata *udata);
270 int mlx4_ib_destroy_cq(struct ib_cq *cq);
271 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
272 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
273 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
274 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
276 struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
277 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
278 int mlx4_ib_destroy_ah(struct ib_ah *ah);
280 struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
281 struct ib_srq_init_attr *init_attr,
282 struct ib_udata *udata);
283 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
284 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
285 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
286 int mlx4_ib_destroy_srq(struct ib_srq *srq);
287 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
288 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
289 struct ib_recv_wr **bad_wr);
291 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
292 struct ib_qp_init_attr *init_attr,
293 struct ib_udata *udata);
294 int mlx4_ib_destroy_qp(struct ib_qp *qp);
295 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
296 int attr_mask, struct ib_udata *udata);
297 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
298 struct ib_qp_init_attr *qp_init_attr);
299 int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
300 struct ib_send_wr **bad_wr);
301 int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
302 struct ib_recv_wr **bad_wr);
304 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
305 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
306 void *in_mad, void *response_mad);
307 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
308 struct ib_wc *in_wc, struct ib_grh *in_grh,
309 struct ib_mad *in_mad, struct ib_mad *out_mad);
310 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
311 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
313 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
314 struct ib_fmr_attr *fmr_attr);
315 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
317 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
318 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
320 static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
322 return !!(ah->av.g_slid & 0x80);
325 #endif /* MLX4_IB_H */