mlx4_ib.h revision bbf8eed1a0f8949f7385146624f736f829992a70
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> 38#include <linux/mutex.h> 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 46enum { 47 MLX4_IB_DB_PER_PAGE = PAGE_SIZE / 4 48}; 49 50struct mlx4_ib_db_pgdir; 51struct mlx4_ib_user_db_page; 52 53struct mlx4_ib_db { 54 __be32 *db; 55 union { 56 struct mlx4_ib_db_pgdir *pgdir; 57 struct mlx4_ib_user_db_page *user_page; 58 } u; 59 dma_addr_t dma; 60 int index; 61 int order; 62}; 63 64struct mlx4_ib_ucontext { 65 struct ib_ucontext ibucontext; 66 struct mlx4_uar uar; 67 struct list_head db_page_list; 68 struct mutex db_page_mutex; 69}; 70 71struct mlx4_ib_pd { 72 struct ib_pd ibpd; 73 u32 pdn; 74}; 75 76struct mlx4_ib_cq_buf { 77 struct mlx4_buf buf; 78 struct mlx4_mtt mtt; 79}; 80 81struct mlx4_ib_cq_resize { 82 struct mlx4_ib_cq_buf buf; 83 int cqe; 84}; 85 86struct mlx4_ib_cq { 87 struct ib_cq ibcq; 88 struct mlx4_cq mcq; 89 struct mlx4_ib_cq_buf buf; 90 struct mlx4_ib_cq_resize *resize_buf; 91 struct mlx4_ib_db db; 92 spinlock_t lock; 93 struct mutex resize_mutex; 94 struct ib_umem *umem; 95 struct ib_umem *resize_umem; 96}; 97 98struct mlx4_ib_mr { 99 struct ib_mr ibmr; 100 struct mlx4_mr mmr; 101 struct ib_umem *umem; 102}; 103 104struct mlx4_ib_fmr { 105 struct ib_fmr ibfmr; 106 struct mlx4_fmr mfmr; 107}; 108 109struct mlx4_ib_wq { 110 u64 *wrid; 111 spinlock_t lock; 112 int wqe_cnt; 113 int max_post; 114 int max_gs; 115 int offset; 116 int wqe_shift; 117 unsigned head; 118 unsigned tail; 119}; 120 121enum mlx4_ib_qp_flags { 122 MLX4_IB_QP_LSO = 1 << 0 123}; 124 125struct mlx4_ib_qp { 126 struct ib_qp ibqp; 127 struct mlx4_qp mqp; 128 struct mlx4_buf buf; 129 130 struct mlx4_ib_db db; 131 struct mlx4_ib_wq rq; 132 133 u32 doorbell_qpn; 134 __be32 sq_signal_bits; 135 unsigned sq_next_wqe; 136 int sq_max_wqes_per_wr; 137 int sq_spare_wqes; 138 struct mlx4_ib_wq sq; 139 140 struct ib_umem *umem; 141 struct mlx4_mtt mtt; 142 int buf_size; 143 struct mutex mutex; 144 u32 flags; 145 u8 port; 146 u8 alt_port; 147 u8 atomic_rd_en; 148 u8 resp_depth; 149 u8 sq_no_prefetch; 150 u8 state; 151}; 152 153struct mlx4_ib_srq { 154 struct ib_srq ibsrq; 155 struct mlx4_srq msrq; 156 struct mlx4_buf buf; 157 struct mlx4_ib_db db; 158 u64 *wrid; 159 spinlock_t lock; 160 int head; 161 int tail; 162 u16 wqe_ctr; 163 struct ib_umem *umem; 164 struct mlx4_mtt mtt; 165 struct mutex mutex; 166}; 167 168struct mlx4_ib_ah { 169 struct ib_ah ibah; 170 struct mlx4_av av; 171}; 172 173struct mlx4_ib_dev { 174 struct ib_device ib_dev; 175 struct mlx4_dev *dev; 176 void __iomem *uar_map; 177 178 struct list_head pgdir_list; 179 struct mutex pgdir_mutex; 180 181 struct mlx4_uar priv_uar; 182 u32 priv_pdn; 183 MLX4_DECLARE_DOORBELL_LOCK(uar_lock); 184 185 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2]; 186 struct ib_ah *sm_ah[MLX4_MAX_PORTS]; 187 spinlock_t sm_lock; 188 189 struct mutex cap_mask_mutex; 190}; 191 192static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev) 193{ 194 return container_of(ibdev, struct mlx4_ib_dev, ib_dev); 195} 196 197static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) 198{ 199 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext); 200} 201 202static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd) 203{ 204 return container_of(ibpd, struct mlx4_ib_pd, ibpd); 205} 206 207static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq) 208{ 209 return container_of(ibcq, struct mlx4_ib_cq, ibcq); 210} 211 212static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq) 213{ 214 return container_of(mcq, struct mlx4_ib_cq, mcq); 215} 216 217static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr) 218{ 219 return container_of(ibmr, struct mlx4_ib_mr, ibmr); 220} 221 222static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr) 223{ 224 return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr); 225} 226static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp) 227{ 228 return container_of(ibqp, struct mlx4_ib_qp, ibqp); 229} 230 231static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp) 232{ 233 return container_of(mqp, struct mlx4_ib_qp, mqp); 234} 235 236static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq) 237{ 238 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq); 239} 240 241static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq) 242{ 243 return container_of(msrq, struct mlx4_ib_srq, msrq); 244} 245 246static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah) 247{ 248 return container_of(ibah, struct mlx4_ib_ah, ibah); 249} 250 251int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int order); 252void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db); 253int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt, 254 struct mlx4_ib_db *db); 255void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db *db); 256 257struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc); 258int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt, 259 struct ib_umem *umem); 260struct 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); 263int mlx4_ib_dereg_mr(struct ib_mr *mr); 264 265int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); 266int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata); 267struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector, 268 struct ib_ucontext *context, 269 struct ib_udata *udata); 270int mlx4_ib_destroy_cq(struct ib_cq *cq); 271int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); 272int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags); 273void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); 274void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); 275 276struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); 277int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr); 278int mlx4_ib_destroy_ah(struct ib_ah *ah); 279 280struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd, 281 struct ib_srq_init_attr *init_attr, 282 struct ib_udata *udata); 283int 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); 285int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr); 286int mlx4_ib_destroy_srq(struct ib_srq *srq); 287void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index); 288int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, 289 struct ib_recv_wr **bad_wr); 290 291struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd, 292 struct ib_qp_init_attr *init_attr, 293 struct ib_udata *udata); 294int mlx4_ib_destroy_qp(struct ib_qp *qp); 295int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 296 int attr_mask, struct ib_udata *udata); 297int 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); 299int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 300 struct ib_send_wr **bad_wr); 301int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 302 struct ib_recv_wr **bad_wr); 303 304int 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); 307int 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); 310int mlx4_ib_mad_init(struct mlx4_ib_dev *dev); 311void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev); 312 313struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags, 314 struct ib_fmr_attr *fmr_attr); 315int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages, 316 u64 iova); 317int mlx4_ib_unmap_fmr(struct list_head *fmr_list); 318int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr); 319 320static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah) 321{ 322 return !!(ah->av.g_slid & 0x80); 323} 324 325#endif /* MLX4_IB_H */ 326