drivers/infiniband/hw/nes/nes_verbs.h

   1 /*
   2  * Copyright (c) 2006 - 2009 Intel Corporation.  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 #define NES_TERM_SENT            0x01
  44 #define NES_TERM_RCVD            0x02
  45 #define NES_TERM_DONE            0x04
  46
  47 struct nes_ucontext {
  48         struct ib_ucontext ibucontext;
  49         struct nes_device  *nesdev;
  50         unsigned long      mmap_wq_offset;
  51         unsigned long      mmap_cq_offset; /* to be removed */
  52         int                index;               /* rnic index (minor) */
  53         unsigned long      allocated_doorbells[BITS_TO_LONGS(NES_MAX_USER_DB_REGIONS)];
  54         u16                mmap_db_index[NES_MAX_USER_DB_REGIONS];
  55         u16                first_free_db;
  56         unsigned long      allocated_wqs[BITS_TO_LONGS(NES_MAX_USER_WQ_REGIONS)];
  57         struct nes_qp      *mmap_nesqp[NES_MAX_USER_WQ_REGIONS];
  58         u16                first_free_wq;
  59         struct list_head   cq_reg_mem_list;
  60         struct list_head   qp_reg_mem_list;
  61         u32                mcrqf;
  62         atomic_t           usecnt;
  63 };
  64
  65 struct nes_pd {
  66         struct ib_pd ibpd;
  67         u16          pd_id;
  68         atomic_t     sqp_count;
  69         u16          mmap_db_index;
  70 };
  71
  72 struct nes_mr {
  73         union {
  74                 struct ib_mr  ibmr;
  75                 struct ib_mw  ibmw;
  76                 struct ib_fmr ibfmr;
  77         };
  78         struct ib_umem    *region;
  79         u16               pbls_used;
  80         u8                mode;
  81         u8                pbl_4k;
  82 };
  83
  84 struct nes_hw_pb {
  85         __le32 pa_low;
  86         __le32 pa_high;
  87 };
  88
  89 struct nes_vpbl {
  90         dma_addr_t       pbl_pbase;
  91         struct nes_hw_pb *pbl_vbase;
  92 };
  93
  94 struct nes_root_vpbl {
  95         dma_addr_t       pbl_pbase;
  96         struct nes_hw_pb *pbl_vbase;
  97         struct nes_vpbl  *leaf_vpbl;
  98 };
  99
 100 struct nes_fmr {
 101         struct nes_mr        nesmr;
 102         u32                  leaf_pbl_cnt;
 103         struct nes_root_vpbl root_vpbl;
 104         struct ib_qp         *ib_qp;
 105         int                  access_rights;
 106         struct ib_fmr_attr   attr;
 107 };
 108
 109 struct nes_av;
 110
 111 struct nes_cq {
 112         struct ib_cq     ibcq;
 113         struct nes_hw_cq hw_cq;
 114         u32              polled_completions;
 115         u32              cq_mem_size;
 116         spinlock_t       lock;
 117         u8               virtual_cq;
 118         u8               pad[3];
 119         u32              mcrqf;
 120 };
 121
 122 struct nes_wq {
 123         spinlock_t lock;
 124 };
 125
 126 struct disconn_work {
 127         struct work_struct    work;
 128         struct nes_qp         *nesqp;
 129 };
 130
 131 struct iw_cm_id;
 132 struct ietf_mpa_frame;
 133
 134 struct nes_qp {
 135         struct ib_qp          ibqp;
 136         void                  *allocated_buffer;
 137         struct iw_cm_id       *cm_id;
 138         struct nes_cq         *nesscq;
 139         struct nes_cq         *nesrcq;
 140         struct nes_pd         *nespd;
 141         void *cm_node; /* handle of the node this QP is associated with */
 142         struct ietf_mpa_frame *ietf_frame;
 143         dma_addr_t            ietf_frame_pbase;
 144         struct ib_mr          *lsmm_mr;
 145         struct nes_hw_qp      hwqp;
 146         struct work_struct    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         struct timer_list     terminate_timer;
 163         enum ib_event_type    terminate_eventtype;
 164         u16                   active_conn:1;
 165         u16                   skip_lsmm:1;
 166         u16                   user_mode:1;
 167         u16                   hte_added:1;
 168         u16                   flush_issued:1;
 169         u16                   destroyed:1;
 170         u16                   sig_all:1;
 171         u16                   rsvd:9;
 172         u16                   private_data_len;
 173         u16                   term_sq_flush_code;
 174         u16                   term_rq_flush_code;
 175         u8                    hw_iwarp_state;
 176         u8                    hw_tcp_state;
 177         u8                    term_flags;
 178         u8                    sq_kmapped;
 179 };
 180 #endif                  /* NES_VERBS_H */