drivers/infiniband/hw/ehca/ehca_mrmw.h

   1 /*
   2  *  IBM eServer eHCA Infiniband device driver for Linux on POWER
   3  *
   4  *  MR/MW declarations and inline functions
   5  *
   6  *  Authors: Dietmar Decker <ddecker@de.ibm.com>
   7  *           Christoph Raisch <raisch@de.ibm.com>
   8  *
   9  *  Copyright (c) 2005 IBM Corporation
  10  *
  11  *  All rights reserved.
  12  *
  13  *  This source code is distributed under a dual license of GPL v2.0 and OpenIB
  14  *  BSD.
  15  *
  16  * OpenIB BSD License
  17  *
  18  * Redistribution and use in source and binary forms, with or without
  19  * modification, are permitted provided that the following conditions are met:
  20  *
  21  * Redistributions of source code must retain the above copyright notice, this
  22  * list of conditions and the following disclaimer.
  23  *
  24  * Redistributions in binary form must reproduce the above copyright notice,
  25  * this list of conditions and the following disclaimer in the documentation
  26  * and/or other materials
  27  * provided with the distribution.
  28  *
  29  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  30  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  31  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  32  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  33  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  34  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  35  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  36  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  37  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  39  * POSSIBILITY OF SUCH DAMAGE.
  40  */
  41
  42 #ifndef _EHCA_MRMW_H_
  43 #define _EHCA_MRMW_H_
  44
  45 int ehca_reg_mr(struct ehca_shca *shca,
  46                 struct ehca_mr *e_mr,
  47                 u64 *iova_start,
  48                 u64 size,
  49                 int acl,
  50                 struct ehca_pd *e_pd,
  51                 struct ehca_mr_pginfo *pginfo,
  52                 u32 *lkey,
  53                 u32 *rkey);
  54
  55 int ehca_reg_mr_rpages(struct ehca_shca *shca,
  56                        struct ehca_mr *e_mr,
  57                        struct ehca_mr_pginfo *pginfo);
  58
  59 int ehca_rereg_mr(struct ehca_shca *shca,
  60                   struct ehca_mr *e_mr,
  61                   u64 *iova_start,
  62                   u64 size,
  63                   int mr_access_flags,
  64                   struct ehca_pd *e_pd,
  65                   struct ehca_mr_pginfo *pginfo,
  66                   u32 *lkey,
  67                   u32 *rkey);
  68
  69 int ehca_unmap_one_fmr(struct ehca_shca *shca,
  70                        struct ehca_mr *e_fmr);
  71
  72 int ehca_reg_smr(struct ehca_shca *shca,
  73                  struct ehca_mr *e_origmr,
  74                  struct ehca_mr *e_newmr,
  75                  u64 *iova_start,
  76                  int acl,
  77                  struct ehca_pd *e_pd,
  78                  u32 *lkey,
  79                  u32 *rkey);
  80
  81 int ehca_reg_internal_maxmr(struct ehca_shca *shca,
  82                             struct ehca_pd *e_pd,
  83                             struct ehca_mr **maxmr);
  84
  85 int ehca_reg_maxmr(struct ehca_shca *shca,
  86                    struct ehca_mr *e_newmr,
  87                    u64 *iova_start,
  88                    int acl,
  89                    struct ehca_pd *e_pd,
  90                    u32 *lkey,
  91                    u32 *rkey);
  92
  93 int ehca_dereg_internal_maxmr(struct ehca_shca *shca);
  94
  95 int ehca_mr_chk_buf_and_calc_size(struct ib_phys_buf *phys_buf_array,
  96                                   int num_phys_buf,
  97                                   u64 *iova_start,
  98                                   u64 *size);
  99
 100 int ehca_fmr_check_page_list(struct ehca_mr *e_fmr,
 101                              u64 *page_list,
 102                              int list_len);
 103
 104 int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo,
 105                      u32 number,
 106                      u64 *kpage);
 107
 108 int ehca_mr_is_maxmr(u64 size,
 109                      u64 *iova_start);
 110
 111 void ehca_mrmw_map_acl(int ib_acl,
 112                        u32 *hipz_acl);
 113
 114 void ehca_mrmw_set_pgsize_hipz_acl(u32 pgsize, u32 *hipz_acl);
 115
 116 void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl,
 117                                int *ib_acl);
 118
 119 void ehca_mr_deletenew(struct ehca_mr *mr);
 120
 121 #endif  /*_EHCA_MRMW_H_*/