mlx4_ib.h revision 3b4a8cd51e59c1c342c51b241bbb96c6ac24a147
1/* 2 * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved. 3 * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34#ifndef MLX4_IB_H 35#define MLX4_IB_H 36 37#include <linux/compiler.h> 38#include <linux/list.h> 39#include <linux/mutex.h> 40 41#include <rdma/ib_verbs.h> 42#include <rdma/ib_umem.h> 43 44#include <linux/mlx4/device.h> 45#include <linux/mlx4/doorbell.h> 46 47struct mlx4_ib_ucontext { 48 struct ib_ucontext ibucontext; 49 struct mlx4_uar uar; 50 struct list_head db_page_list; 51 struct mutex db_page_mutex; 52}; 53 54struct mlx4_ib_pd { 55 struct ib_pd ibpd; 56 u32 pdn; 57}; 58 59struct mlx4_ib_cq_buf { 60 struct mlx4_buf buf; 61 struct mlx4_mtt mtt; 62}; 63 64struct mlx4_ib_cq_resize { 65 struct mlx4_ib_cq_buf buf; 66 int cqe; 67}; 68 69struct mlx4_ib_cq { 70 struct ib_cq ibcq; 71 struct mlx4_cq mcq; 72 struct mlx4_ib_cq_buf buf; 73 struct mlx4_ib_cq_resize *resize_buf; 74 struct mlx4_db db; 75 spinlock_t lock; 76 struct mutex resize_mutex; 77 struct ib_umem *umem; 78 struct ib_umem *resize_umem; 79}; 80 81struct mlx4_ib_mr { 82 struct ib_mr ibmr; 83 struct mlx4_mr mmr; 84 struct ib_umem *umem; 85}; 86 87struct mlx4_ib_fast_reg_page_list { 88 struct ib_fast_reg_page_list ibfrpl; 89 __be64 *mapped_page_list; 90 dma_addr_t map; 91}; 92 93struct mlx4_ib_fmr { 94 struct ib_fmr ibfmr; 95 struct mlx4_fmr mfmr; 96}; 97 98struct mlx4_ib_wq { 99 u64 *wrid; 100 spinlock_t lock; 101 int wqe_cnt; 102 int max_post; 103 int max_gs; 104 int offset; 105 int wqe_shift; 106 unsigned head; 107 unsigned tail; 108}; 109 110enum mlx4_ib_qp_flags { 111 MLX4_IB_QP_LSO = 1 << 0, 112 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = 1 << 1, 113}; 114 115struct mlx4_ib_qp { 116 struct ib_qp ibqp; 117 struct mlx4_qp mqp; 118 struct mlx4_buf buf; 119 120 struct mlx4_db db; 121 struct mlx4_ib_wq rq; 122 123 u32 doorbell_qpn; 124 __be32 sq_signal_bits; 125 unsigned sq_next_wqe; 126 int sq_max_wqes_per_wr; 127 int sq_spare_wqes; 128 struct mlx4_ib_wq sq; 129 130 struct ib_umem *umem; 131 struct mlx4_mtt mtt; 132 int buf_size; 133 struct mutex mutex; 134 u32 flags; 135 u8 port; 136 u8 alt_port; 137 u8 atomic_rd_en; 138 u8 resp_depth; 139 u8 sq_no_prefetch; 140 u8 state; 141}; 142 143struct mlx4_ib_srq { 144 struct ib_srq ibsrq; 145 struct mlx4_srq msrq; 146 struct mlx4_buf buf; 147 struct mlx4_db db; 148 u64 *wrid; 149 spinlock_t lock; 150 int head; 151 int tail; 152 u16 wqe_ctr; 153 struct ib_umem *umem; 154 struct mlx4_mtt mtt; 155 struct mutex mutex; 156}; 157 158struct mlx4_ib_ah { 159 struct ib_ah ibah; 160 struct mlx4_av av; 161}; 162 163struct mlx4_ib_dev { 164 struct ib_device ib_dev; 165 struct mlx4_dev *dev; 166 int num_ports; 167 void __iomem *uar_map; 168 169 struct mlx4_uar priv_uar; 170 u32 priv_pdn; 171 MLX4_DECLARE_DOORBELL_LOCK(uar_lock); 172 173 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2]; 174 struct ib_ah *sm_ah[MLX4_MAX_PORTS]; 175 spinlock_t sm_lock; 176 177 struct mutex cap_mask_mutex; 178 bool ib_active; 179}; 180 181static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev) 182{ 183 return container_of(ibdev, struct mlx4_ib_dev, ib_dev); 184} 185 186static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) 187{ 188 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext); 189} 190 191static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd) 192{ 193 return container_of(ibpd, struct mlx4_ib_pd, ibpd); 194} 195 196static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq) 197{ 198 return container_of(ibcq, struct mlx4_ib_cq, ibcq); 199} 200 201static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq) 202{ 203 return container_of(mcq, struct mlx4_ib_cq, mcq); 204} 205 206static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr) 207{ 208 return container_of(ibmr, struct mlx4_ib_mr, ibmr); 209} 210 211static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl) 212{ 213 return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl); 214} 215 216static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr) 217{ 218 return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr); 219} 220static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp) 221{ 222 return container_of(ibqp, struct mlx4_ib_qp, ibqp); 223} 224 225static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp) 226{ 227 return container_of(mqp, struct mlx4_ib_qp, mqp); 228} 229 230static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq) 231{ 232 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq); 233} 234 235static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq) 236{ 237 return container_of(msrq, struct mlx4_ib_srq, msrq); 238} 239 240static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah) 241{ 242 return container_of(ibah, struct mlx4_ib_ah, ibah); 243} 244 245int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt, 246 struct mlx4_db *db); 247void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db); 248 249struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc); 250int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt, 251 struct ib_umem *umem); 252struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 253 u64 virt_addr, int access_flags, 254 struct ib_udata *udata); 255int mlx4_ib_dereg_mr(struct ib_mr *mr); 256struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd, 257 int max_page_list_len); 258struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev, 259 int page_list_len); 260void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list); 261 262int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); 263int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata); 264struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector, 265 struct ib_ucontext *context, 266 struct ib_udata *udata); 267int mlx4_ib_destroy_cq(struct ib_cq *cq); 268int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); 269int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags); 270void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); 271void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); 272 273struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); 274int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr); 275int mlx4_ib_destroy_ah(struct ib_ah *ah); 276 277struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd, 278 struct ib_srq_init_attr *init_attr, 279 struct ib_udata *udata); 280int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 281 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); 282int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr); 283int mlx4_ib_destroy_srq(struct ib_srq *srq); 284void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index); 285int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, 286 struct ib_recv_wr **bad_wr); 287 288struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd, 289 struct ib_qp_init_attr *init_attr, 290 struct ib_udata *udata); 291int mlx4_ib_destroy_qp(struct ib_qp *qp); 292int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 293 int attr_mask, struct ib_udata *udata); 294int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 295 struct ib_qp_init_attr *qp_init_attr); 296int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 297 struct ib_send_wr **bad_wr); 298int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 299 struct ib_recv_wr **bad_wr); 300 301int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey, 302 int port, struct ib_wc *in_wc, struct ib_grh *in_grh, 303 void *in_mad, void *response_mad); 304int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, 305 struct ib_wc *in_wc, struct ib_grh *in_grh, 306 struct ib_mad *in_mad, struct ib_mad *out_mad); 307int mlx4_ib_mad_init(struct mlx4_ib_dev *dev); 308void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev); 309 310struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags, 311 struct ib_fmr_attr *fmr_attr); 312int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages, 313 u64 iova); 314int mlx4_ib_unmap_fmr(struct list_head *fmr_list); 315int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr); 316 317static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah) 318{ 319 return !!(ah->av.g_slid & 0x80); 320} 321 322#endif /* MLX4_IB_H */ 323