ctdb/ib/ibwrapper_internal.h

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * Wrap Infiniband calls.
   4  *
   5  * Copyright (C) Sven Oehme <oehmes@de.ibm.com> 2006
   6  *
   7  * Major code contributions by Peter Somogyi <psomogyi@gamax.hu>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 typedef struct _ibw_opts {
  25         int     max_send_wr;
  26         int     max_recv_wr;
  27         int     max_msg_size;
  28 } ibw_opts;
  29
  30 typedef struct _ibw_wr {
  31         char    *msg; /* initialized in ibw_init_memory once */
  32         ibw_conn *conn; /*valid only when in wr_list_used */
  33         int     wr_id; /* position in wr_index list; also used as wr id */
  34         struct _ibw_wr *next, *prev; /* in wr_list_avail or wr_list_used */
  35 } ibw_wr;
  36
  37 typedef enum {
  38         IWINT_INIT = 0,
  39         IWINT_ADDR_RESOLVED,
  40         IWINT_ROUTE_RESOLVED,
  41         IWINT_ERROR
  42 } ibw_state_ctx;
  43
  44 typedef struct _ibw_ctx_priv {
  45         struct event_context *ectx;
  46
  47         ibw_opts opts;
  48
  49         struct rdma_cm_id       *cm_id; /* server cm id */
  50
  51         struct rdma_event_channel *cm_channel;
  52         struct fd_event *cm_channel_event;
  53
  54         struct rdma_event_channel *cm_channel;
  55         struct fd_event *cm_channel_event;
  56         struct ibv_comp_channel *verbs_channel;
  57         struct fd_event *verbs_channel_event;
  58
  59         struct ibv_pd          *pd;
  60
  61         ibw_connstate_fn_t connstate_func;
  62         ibw_receive_fn_t receive_func;
  63
  64         long    pagesize; /* sysconf result for memalign */
  65 } ibw_ctx_priv;
  66
  67 typedef struct _ibw_conn_priv {
  68         struct rdma_cm_id *cm_id; /* client's cm id */
  69         int     is_accepted;
  70
  71         struct ibv_cq   *cq; /* qp is in cm_id */
  72         struct ibv_mr *mr;
  73         char *buf; /* fixed size (opts.bufsize) buffer for send/recv */
  74         ibw_wr *wr_list_avail;
  75         ibw_wr *wr_list_used;
  76         ibw_wr **wr_index; /* array[0..(max_send_wr + max_recv_wr)-1] of (ibw_wr *) */
  77 } ibw_conn_priv;
  78