include/sys/ib/mgt/ibdma/ibdma_impl.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 #ifndef _IBDMA_IMPL_H
  27 #define _IBDMA_IMPL_H
  28
  29 /*
  30  * ibdma_impl.h
  31  *
  32  * Device Management Agent private prototypes and structures.
  33  */
  34
  35 #ifdef __cpluplus
  36 extern "C" {
  37 #endif
  38
  39 #include <sys/ib/ibtl/ibvti.h>          /* IB verrbs interfaces */
  40 #include <sys/ib/mgt/ib_dm_attr.h>      /* IB DM defines/structures */
  41 #include <sys/ib/mgt/ib_mad.h>          /* IB MAD defines/structures */
  42
  43 enum  {
  44         IBDMA_MAD_SIZE          = 256,
  45         IBDMA_DM_MAD_HDR_SIZE   = 40,
  46         IBDMA_DM_RESP_TIME      = 20,
  47         IBDMA_MAX_IOC           = 16
  48 };
  49
  50 /*
  51  * Implementation of handle returned to consumer.
  52  */
  53 typedef struct ibdma_hdl_impl_s {
  54         list_node_t             ih_node;
  55         ib_guid_t               ih_iou_guid;
  56         uint8_t                 ih_ioc_ndx;
  57 } ibdma_hdl_impl_t;
  58
  59 /*
  60  * Each I/O Controller slot for the I/O Unit.
  61  */
  62 typedef struct ibdma_ioc_s {
  63         uint8_t                         ii_inuse;
  64         /*
  65          * Just to map handle back to slot number and hca
  66          */
  67         int                             ii_slot;
  68         struct ibdma_hca_s              *ii_hcap;
  69
  70         /*
  71          * Profile provided by the I/O Controller, must be stored
  72          * in network order.  Note that the profile indicates the
  73          * number of service entries pointed to by ii_srvcs.
  74          */
  75         ib_dm_ioc_ctrl_profile_t        ii_profile;
  76         ib_dm_srv_t                     *ii_srvcs;
  77 } ibdma_ioc_t;
  78
  79 /*
  80  * The ibdma_hca_t structure is only used internally by the
  81  * IB DM Agent.  It is created when the associated HCA is
  82  * opened as part of initialization or as a result of a
  83  * notification via IBTF.  It is destroyed when the HCA
  84  * is closed as part of fini processing or as a result of
  85  * a notification via IBTF.  The structure is not directly
  86  * accessed by IBMF call-backs or the consumer API.
  87  */
  88 typedef struct ibdma_port_s {
  89         ibmf_handle_t           ip_ibmf_hdl;
  90         ibmf_register_info_t    ip_ibmf_reg;
  91         ibmf_impl_caps_t        ip_ibmf_caps;
  92         struct ibdma_hca_s      *ip_hcap;
  93 } ibdma_port_t;
  94
  95 typedef struct ibdma_hca_s {
  96         list_node_t             ih_node;
  97         ibt_hca_hdl_t           ih_ibt_hdl;
  98
  99         /*
 100          * Consumer handles associated with I/O Controllers
 101          * that have registered with this I/O Unit.
 102          */
 103         list_t                  ih_hdl_list;
 104
 105         /*
 106          * The I/O Unit that is presented to the IB Fabric.
 107          * It is stored in network order.
 108          */
 109         krwlock_t               ih_iou_rwlock;
 110         ib_guid_t               ih_iou_guid;
 111         ib_dm_io_unitinfo_t     ih_iou;
 112         ibdma_ioc_t             ih_ioc[IBDMA_MAX_IOC];
 113         uint8_t                 ih_nports;
 114         ibdma_port_t            ih_port[1];
 115 } ibdma_hca_t;
 116
 117
 118 /*
 119  * The IBDMA module state information created and initialized
 120  * at _init() and freed at _fini().
 121  */
 122 typedef struct ibdma_mod_state_s {
 123         ibt_clnt_hdl_t          ms_ibt_hdl;
 124
 125         /*
 126          * The HCA list lock is used protect the HCA list and
 127          * is held during consumer routines (in place of a
 128          * reference count) to ensure the HCA exists for the
 129          * duration of it's use in the routine.
 130          */
 131         kmutex_t                ms_hca_list_lock;
 132         list_t                  ms_hca_list;
 133         uint_t                  ms_num_hcas;
 134
 135 } ibdma_mod_state_t;
 136
 137
 138 /*
 139  * Client API internal helpers
 140  */
 141 typedef enum ibdma_ioc_state_e {
 142         IBDMA_IOC_NOT_INSTALLED = 0,
 143         IBDMA_IOC_PRESENT = 1,
 144         IBDMA_IOC_DOES_NOT_EXIST = 255,
 145         IBDMA_HDL_MAGIC = 0x00931000
 146 } ibdma_ioc_state_t;
 147
 148 static void
 149 ibdma_set_ioc_state(ibdma_hca_t *hca, int slot, ibdma_ioc_state_t state);
 150 static ibdma_ioc_state_t ibdma_get_ioc_state(ibdma_hca_t *hca, int slot);
 151
 152 #endif /* _IBDMA_IMPL_H */