LXR linux/drivers/infiniband/hw/amso1100/c2

   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
  51struct 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. */
  59struct c2_ucontext {
  60        struct ib_ucontext ibucontext;
  61};
  62
  63struct c2_mtt;
  64
  65/* All objects associated with a PD are kept in the
  66 * associated user context if present.
  67 */
  68struct c2_pd {
  69        struct ib_pd ibpd;
  70        u32 pd_id;
  71};
  72
  73struct c2_mr {
  74        struct ib_mr ibmr;
  75        struct c2_pd *pd;
  76        struct ib_umem *umem;
  77};
  78
  79struct c2_av;
  80
  81enum c2_ah_type {
  82        C2_AH_ON_HCA,
  83        C2_AH_PCI_POOL,
  84        C2_AH_KMALLOC
  85};
  86
  87struct c2_ah {
  88        struct ib_ah ibah;
  89};
  90
  91struct 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
 103struct c2_wq {
 104        spinlock_t lock;
 105};
 106struct iw_cm_id;
 107struct 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
 125struct c2_cr_query_attrs {
 126        u32 local_addr;
 127        u32 remote_addr;
 128        u16 local_port;
 129        u16 remote_port;
 130};
 131
 132static inline struct c2_pd *to_c2pd(struct ib_pd *ibpd)
 133{
 134        return container_of(ibpd, struct c2_pd, ibpd);
 135}
 136
 137static inline struct c2_ucontext *to_c2ucontext(struct ib_ucontext *ibucontext)
 138{
 139        return container_of(ibucontext, struct c2_ucontext, ibucontext);
 140}
 141
 142static inline struct c2_mr *to_c2mr(struct ib_mr *ibmr)
 143{
 144        return container_of(ibmr, struct c2_mr, ibmr);
 145}
 146
 147
 148static inline struct c2_ah *to_c2ah(struct ib_ah *ibah)
 149{
 150        return container_of(ibah, struct c2_ah, ibah);
 151}
 152
 153static inline struct c2_cq *to_c2cq(struct ib_cq *ibcq)
 154{
 155        return container_of(ibcq, struct c2_cq, ibcq);
 156}
 157
 158static inline struct c2_qp *to_c2qp(struct ib_qp *ibqp)
 159{
 160        return container_of(ibqp, struct c2_qp, ibqp);
 161}
 162
 163static 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 */
 183