drivers/infiniband/hw/nes/nes_verbs.h

   1 /*
   2  * Copyright (c) 2006 - 2009 Intel-NE, 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 NES_VERBS_H
  36 #define NES_VERBS_H
  37
  38 struct nes_device;
  39
  40 #define NES_MAX_USER_DB_REGIONS  4096
  41 #define NES_MAX_USER_WQ_REGIONS  4096
  42
  43 struct nes_ucontext {
  44         struct ib_ucontext ibucontext;
  45         struct nes_device  *nesdev;
  46         unsigned long      mmap_wq_offset;
  47         unsigned long      mmap_cq_offset; /* to be removed */
  48         int                index;               /* rnic index (minor) */
  49         unsigned long      allocated_doorbells[BITS_TO_LONGS(NES_MAX_USER_DB_REGIONS)];
  50         u16                mmap_db_index[NES_MAX_USER_DB_REGIONS];
  51         u16                first_free_db;
  52         unsigned long      allocated_wqs[BITS_TO_LONGS(NES_MAX_USER_WQ_REGIONS)];
  53         struct nes_qp      *mmap_nesqp[NES_MAX_USER_WQ_REGIONS];
  54         u16                first_free_wq;
  55         struct list_head   cq_reg_mem_list;
  56         struct list_head   qp_reg_mem_list;
  57         u32                mcrqf;
  58         atomic_t           usecnt;
  59 };
  60
  61 struct nes_pd {
  62         struct ib_pd ibpd;
  63         u16          pd_id;
  64         atomic_t     sqp_count;
  65         u16          mmap_db_index;
  66 };
  67
  68 struct nes_mr {
  69         union {
  70                 struct ib_mr  ibmr;
  71                 struct ib_mw  ibmw;
  72                 struct ib_fmr ibfmr;
  73         };
  74         struct ib_umem    *region;
  75         u16               pbls_used;
  76         u8                mode;
  77         u8                pbl_4k;
  78 };
  79
  80 struct nes_hw_pb {
  81         __le32 pa_low;
  82         __le32 pa_high;
  83 };
  84
  85 struct nes_vpbl {
  86         dma_addr_t       pbl_pbase;
  87         struct nes_hw_pb *pbl_vbase;
  88 };
  89
  90 struct nes_root_vpbl {
  91         dma_addr_t       pbl_pbase;
  92         struct nes_hw_pb *pbl_vbase;
  93         struct nes_vpbl  *leaf_vpbl;
  94 };
  95
  96 struct nes_fmr {
  97         struct nes_mr        nesmr;
  98         u32                  leaf_pbl_cnt;
  99         struct nes_root_vpbl root_vpbl;
 100         struct ib_qp         *ib_qp;
 101         int                  access_rights;
 102         struct ib_fmr_attr   attr;
 103 };
 104
 105 struct nes_av;
 106
 107 struct nes_cq {
 108         struct ib_cq     ibcq;
 109         struct nes_hw_cq hw_cq;
 110         u32              polled_completions;
 111         u32              cq_mem_size;
 112         spinlock_t       lock;
 113         u8               virtual_cq;
 114         u8               pad[3];
 115         u32              mcrqf;
 116 };
 117
 118 struct nes_wq {
 119         spinlock_t lock;
 120 };
 121
 122 struct disconn_work {
 123         struct work_struct    work;
 124         struct nes_qp         *nesqp;
 125 };
 126
 127 struct iw_cm_id;
 128 struct ietf_mpa_frame;
 129
 130 struct nes_qp {
 131         struct ib_qp          ibqp;
 132         void                  *allocated_buffer;
 133         struct iw_cm_id       *cm_id;
 134         struct workqueue_struct *wq;
 135         struct nes_cq         *nesscq;
 136         struct nes_cq         *nesrcq;
 137         struct nes_pd         *nespd;
 138         void *cm_node; /* handle of the node this QP is associated with */
 139         struct ietf_mpa_frame *ietf_frame;
 140         dma_addr_t            ietf_frame_pbase;
 141         wait_queue_head_t     state_waitq;
 142         struct ib_mr          *lsmm_mr;
 143         unsigned long         socket;
 144         struct nes_hw_qp      hwqp;
 145         struct work_struct    work;
 146         struct work_struct    ae_work;
 147         enum ib_qp_state      ibqp_state;
 148         u32                   iwarp_state;
 149         u32                   hte_index;
 150         u32                   last_aeq;
 151         u32                   qp_mem_size;
 152         atomic_t              refcount;
 153         atomic_t              close_timer_started;
 154         u32                   mmap_sq_db_index;
 155         u32                   mmap_rq_db_index;
 156         spinlock_t            lock;
 157         struct nes_qp_context *nesqp_context;
 158         dma_addr_t            nesqp_context_pbase;
 159         void                  *pbl_vbase;
 160         dma_addr_t            pbl_pbase;
 161         struct page           *page;
 162         wait_queue_head_t     kick_waitq;
 163         u16                   in_disconnect;
 164         u16                   private_data_len;
 165         u8                    active_conn;
 166         u8                    skip_lsmm;
 167         u8                    user_mode;
 168         u8                    hte_added;
 169         u8                    hw_iwarp_state;
 170         u8                    flush_issued;
 171         u8                    hw_tcp_state;
 172         u8                    destroyed;
 173 };
 174 #endif                  /* NES_VERBS_H */