1 /* 2 * Broadcom NetXtreme-E RoCE driver. 3 * 4 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term 5 * Broadcom refers to Broadcom Limited and/or its subsidiaries. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in 21 * the documentation and/or other materials provided with the 22 * distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 26 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 31 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 33 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 34 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 * 36 * Description: IB Verbs interpreter (header) 37 */ 38 39 #ifndef __BNXT_RE_IB_VERBS_H__ 40 #define __BNXT_RE_IB_VERBS_H__ 41 42 struct bnxt_re_gid_ctx { 43 u32 idx; 44 u32 refcnt; 45 }; 46 47 #define BNXT_RE_FENCE_BYTES 64 48 struct bnxt_re_fence_data { 49 u32 size; 50 u8 va[BNXT_RE_FENCE_BYTES]; 51 dma_addr_t dma_addr; 52 struct bnxt_re_mr *mr; 53 struct ib_mw *mw; 54 struct bnxt_qplib_swqe bind_wqe; 55 u32 bind_rkey; 56 }; 57 58 struct bnxt_re_pd { 59 struct ib_pd ib_pd; 60 struct bnxt_re_dev *rdev; 61 struct bnxt_qplib_pd qplib_pd; 62 struct bnxt_re_fence_data fence; 63 }; 64 65 struct bnxt_re_ah { 66 struct ib_ah ib_ah; 67 struct bnxt_re_dev *rdev; 68 struct bnxt_qplib_ah qplib_ah; 69 }; 70 71 struct bnxt_re_srq { 72 struct ib_srq ib_srq; 73 struct bnxt_re_dev *rdev; 74 u32 srq_limit; 75 struct bnxt_qplib_srq qplib_srq; 76 struct ib_umem *umem; 77 spinlock_t lock; /* protect srq */ 78 }; 79 80 struct bnxt_re_qp { 81 struct ib_qp ib_qp; 82 struct list_head list; 83 struct bnxt_re_dev *rdev; 84 spinlock_t sq_lock; /* protect sq */ 85 spinlock_t rq_lock; /* protect rq */ 86 struct bnxt_qplib_qp qplib_qp; 87 struct ib_umem *sumem; 88 struct ib_umem *rumem; 89 /* QP1 */ 90 u32 send_psn; 91 struct ib_ud_header qp1_hdr; 92 struct bnxt_re_cq *scq; 93 struct bnxt_re_cq *rcq; 94 }; 95 96 struct bnxt_re_cq { 97 struct ib_cq ib_cq; 98 struct bnxt_re_dev *rdev; 99 spinlock_t cq_lock; /* protect cq */ 100 u16 cq_count; 101 u16 cq_period; 102 struct bnxt_qplib_cq qplib_cq; 103 struct bnxt_qplib_cqe *cql; 104 #define MAX_CQL_PER_POLL 1024 105 u32 max_cql; 106 struct ib_umem *umem; 107 }; 108 109 struct bnxt_re_mr { 110 struct bnxt_re_dev *rdev; 111 struct ib_mr ib_mr; 112 struct ib_umem *ib_umem; 113 struct bnxt_qplib_mrw qplib_mr; 114 u32 npages; 115 u64 *pages; 116 struct bnxt_qplib_frpl qplib_frpl; 117 }; 118 119 struct bnxt_re_frpl { 120 struct bnxt_re_dev *rdev; 121 struct bnxt_qplib_frpl qplib_frpl; 122 u64 *page_list; 123 }; 124 125 struct bnxt_re_mw { 126 struct bnxt_re_dev *rdev; 127 struct ib_mw ib_mw; 128 struct bnxt_qplib_mrw qplib_mw; 129 }; 130 131 struct bnxt_re_ucontext { 132 struct ib_ucontext ib_uctx; 133 struct bnxt_re_dev *rdev; 134 struct bnxt_qplib_dpi dpi; 135 void *shpg; 136 spinlock_t sh_lock; /* protect shpg */ 137 }; 138 139 static inline u16 bnxt_re_get_swqe_size(int nsge) 140 { 141 return sizeof(struct sq_send_hdr) + nsge * sizeof(struct sq_sge); 142 } 143 144 static inline u16 bnxt_re_get_rwqe_size(int nsge) 145 { 146 return sizeof(struct rq_wqe_hdr) + (nsge * sizeof(struct sq_sge)); 147 } 148 149 int bnxt_re_query_device(struct ib_device *ibdev, 150 struct ib_device_attr *ib_attr, 151 struct ib_udata *udata); 152 int bnxt_re_query_port(struct ib_device *ibdev, u32 port_num, 153 struct ib_port_attr *port_attr); 154 int bnxt_re_get_port_immutable(struct ib_device *ibdev, u32 port_num, 155 struct ib_port_immutable *immutable); 156 void bnxt_re_query_fw_str(struct ib_device *ibdev, char *str); 157 int bnxt_re_query_pkey(struct ib_device *ibdev, u32 port_num, 158 u16 index, u16 *pkey); 159 int bnxt_re_del_gid(const struct ib_gid_attr *attr, void **context); 160 int bnxt_re_add_gid(const struct ib_gid_attr *attr, void **context); 161 int bnxt_re_query_gid(struct ib_device *ibdev, u32 port_num, 162 int index, union ib_gid *gid); 163 enum rdma_link_layer bnxt_re_get_link_layer(struct ib_device *ibdev, 164 u32 port_num); 165 int bnxt_re_alloc_pd(struct ib_pd *pd, struct ib_udata *udata); 166 int bnxt_re_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata); 167 int bnxt_re_create_ah(struct ib_ah *ah, struct rdma_ah_init_attr *init_attr, 168 struct ib_udata *udata); 169 int bnxt_re_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); 170 int bnxt_re_destroy_ah(struct ib_ah *ah, u32 flags); 171 int bnxt_re_create_srq(struct ib_srq *srq, 172 struct ib_srq_init_attr *srq_init_attr, 173 struct ib_udata *udata); 174 int bnxt_re_modify_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr, 175 enum ib_srq_attr_mask srq_attr_mask, 176 struct ib_udata *udata); 177 int bnxt_re_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr); 178 int bnxt_re_destroy_srq(struct ib_srq *srq, struct ib_udata *udata); 179 int bnxt_re_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *recv_wr, 180 const struct ib_recv_wr **bad_recv_wr); 181 int bnxt_re_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *qp_init_attr, 182 struct ib_udata *udata); 183 int bnxt_re_modify_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, 184 int qp_attr_mask, struct ib_udata *udata); 185 int bnxt_re_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, 186 int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); 187 int bnxt_re_destroy_qp(struct ib_qp *qp, struct ib_udata *udata); 188 int bnxt_re_post_send(struct ib_qp *qp, const struct ib_send_wr *send_wr, 189 const struct ib_send_wr **bad_send_wr); 190 int bnxt_re_post_recv(struct ib_qp *qp, const struct ib_recv_wr *recv_wr, 191 const struct ib_recv_wr **bad_recv_wr); 192 int bnxt_re_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, 193 struct ib_udata *udata); 194 int bnxt_re_destroy_cq(struct ib_cq *cq, struct ib_udata *udata); 195 int bnxt_re_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc); 196 int bnxt_re_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags); 197 struct ib_mr *bnxt_re_get_dma_mr(struct ib_pd *pd, int mr_access_flags); 198 199 int bnxt_re_map_mr_sg(struct ib_mr *ib_mr, struct scatterlist *sg, int sg_nents, 200 unsigned int *sg_offset); 201 struct ib_mr *bnxt_re_alloc_mr(struct ib_pd *ib_pd, enum ib_mr_type mr_type, 202 u32 max_num_sg); 203 int bnxt_re_dereg_mr(struct ib_mr *mr, struct ib_udata *udata); 204 struct ib_mw *bnxt_re_alloc_mw(struct ib_pd *ib_pd, enum ib_mw_type type, 205 struct ib_udata *udata); 206 int bnxt_re_dealloc_mw(struct ib_mw *mw); 207 struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 208 u64 virt_addr, int mr_access_flags, 209 struct ib_udata *udata); 210 int bnxt_re_alloc_ucontext(struct ib_ucontext *ctx, struct ib_udata *udata); 211 void bnxt_re_dealloc_ucontext(struct ib_ucontext *context); 212 int bnxt_re_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); 213 214 unsigned long bnxt_re_lock_cqs(struct bnxt_re_qp *qp); 215 void bnxt_re_unlock_cqs(struct bnxt_re_qp *qp, unsigned long flags); 216 #endif /* __BNXT_RE_IB_VERBS_H__ */ 217