drivers/infiniband/hw/amso1100/c2_provider.h

   1 /*
   2  * Copyright (c) 2005 Ammasso, Inc. All rights reserved.
   3  * Copyright (c) 2005 Open Grid Computing, Inc. 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
  35 #ifndef C2_PROVIDER_H
  36 #define C2_PROVIDER_H
  37 #include <linux/inetdevice.h>
  38
  39 #include <rdma/ib_verbs.h>
  40 #include <rdma/ib_pack.h>
  41
  42 #include "c2_mq.h"
  43 #include <rdma/iw_cm.h>
  44
  45 #define C2_MPT_FLAG_ATOMIC        (1 << 14)
  46 #define C2_MPT_FLAG_REMOTE_WRITE  (1 << 13)
  47 #define C2_MPT_FLAG_REMOTE_READ   (1 << 12)
  48 #define C2_MPT_FLAG_LOCAL_WRITE   (1 << 11)
  49 #define C2_MPT_FLAG_LOCAL_READ    (1 << 10)
  50
  51 struct c2_buf_list {
  52         void *buf;
  53         DEFINE_DMA_UNMAP_ADDR(mapping);
  54 };
  55
  56
  57 /* The user context keeps track of objects allocated for a
  58  * particular user-mode client. */
  59 struct c2_ucontext {
  60         struct ib_ucontext ibucontext;
  61 };
  62
  63 struct c2_mtt;
  64
  65 /* All objects associated with a PD are kept in the
  66  * associated user context if present.
  67  */
  68 struct c2_pd {
  69         struct ib_pd ibpd;
  70         u32 pd_id;
  71 };
  72
  73 struct c2_mr {
  74         struct ib_mr ibmr;
  75         struct c2_pd *pd;
  76         struct ib_umem *umem;
  77 };
  78
  79 struct c2_av;
  80
  81 enum c2_ah_type {
  82         C2_AH_ON_HCA,
  83         C2_AH_PCI_POOL,
  84         C2_AH_KMALLOC
  85 };
  86
  87 struct c2_ah {
  88         struct ib_ah ibah;
  89 };
  90
  91 struct c2_cq {
  92         struct ib_cq ibcq;
  93         spinlock_t lock;
  94         atomic_t refcount;
  95         int cqn;
  96         int is_kernel;
  97         wait_queue_head_t wait;
  98
  99         u32 adapter_handle;
 100         struct c2_mq mq;
 101 };
 102
 103 struct c2_wq {
 104         spinlock_t lock;
 105 };
 106 struct iw_cm_id;
 107 struct c2_qp {
 108         struct ib_qp ibqp;
 109         struct iw_cm_id *cm_id;
 110         spinlock_t lock;
 111         atomic_t refcount;
 112         wait_queue_head_t wait;
 113         int qpn;
 114
 115         u32 adapter_handle;
 116         u32 send_sgl_depth;
 117         u32 recv_sgl_depth;
 118         u32 rdma_write_sgl_depth;
 119         u8 state;
 120
 121         struct c2_mq sq_mq;
 122         struct c2_mq rq_mq;
 123 };
 124
 125 struct c2_cr_query_attrs {
 126         u32 local_addr;
 127         u32 remote_addr;
 128         u16 local_port;
 129         u16 remote_port;
 130 };
 131
 132 static inline struct c2_pd *to_c2pd(struct ib_pd *ibpd)
 133 {
 134         return container_of(ibpd, struct c2_pd, ibpd);
 135 }
 136
 137 static inline struct c2_ucontext *to_c2ucontext(struct ib_ucontext *ibucontext)
 138 {
 139         return container_of(ibucontext, struct c2_ucontext, ibucontext);
 140 }
 141
 142 static inline struct c2_mr *to_c2mr(struct ib_mr *ibmr)
 143 {
 144         return container_of(ibmr, struct c2_mr, ibmr);
 145 }
 146
 147
 148 static inline struct c2_ah *to_c2ah(struct ib_ah *ibah)
 149 {
 150         return container_of(ibah, struct c2_ah, ibah);
 151 }
 152
 153 static inline struct c2_cq *to_c2cq(struct ib_cq *ibcq)
 154 {
 155         return container_of(ibcq, struct c2_cq, ibcq);
 156 }
 157
 158 static inline struct c2_qp *to_c2qp(struct ib_qp *ibqp)
 159 {
 160         return container_of(ibqp, struct c2_qp, ibqp);
 161 }
 162
 163 static inline int is_rnic_addr(struct net_device *netdev, u32 addr)
 164 {
 165         struct in_device *ind;
 166         int ret = 0;
 167
 168         ind = in_dev_get(netdev);
 169         if (!ind)
 170                 return 0;
 171
 172         for_ifa(ind) {
 173                 if (ifa->ifa_address == addr) {
 174                         ret = 1;
 175                         break;
 176                 }
 177         }
 178         endfor_ifa(ind);
 179         in_dev_put(ind);
 180         return ret;
 181 }
 182 #endif                          /* C2_PROVIDER_H */