vipqueryvi.c

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/********************************************************
 * Myricom VI-GM  networking software and documentation *
 * Copyright (c) 2001 by Myricom, Inc.                  *
 * All rights reserved.                                 *
 * See the file `COPYING' for copyright notice.         *
 ********************************************************/

#include "vipl_priv.h"


VIP_ENTRY_POINT VIP_RETURN
VipQueryVi (VIP_VI_HANDLE ViHandle,
            VIP_VI_STATE * State,
            VIP_VI_ATTRIBUTES * ViAttribs,
            VIP_BOOLEAN * ViSendQEmpty, VIP_BOOLEAN * ViRecvQEmpty)
{
  VIP_VI *vip_vi_ptr;
  VIP_DEBUG_LABEL (("VipQueryVi"));

  if (State == NULL)
    {
      VIP_DEBUG (("State is NULL"));
      return VIP_INVALID_PARAMETER;
    }

  if (ViAttribs == NULL)
    {
      VIP_DEBUG (("ViAttribs is NULL"));
      return VIP_INVALID_PARAMETER;
    }

  if (ViSendQEmpty == NULL)
    {
      VIP_DEBUG (("ViSendQEmpty is NULL"));
      return VIP_INVALID_PARAMETER;
    }

  if (ViRecvQEmpty == NULL)
    {
      VIP_DEBUG (("ViRecvQEmpty is NULL"));
      return VIP_INVALID_PARAMETER;
    }

  /* check vi handle */
  vip_vi_ptr = (VIP_VI *) ViHandle;
  if (VIP_INVALID_VI_HANDLE (vip_vi_ptr))
    {
      VIP_DEBUG (("Invalid NIC handle"));
      return VIP_INVALID_PARAMETER;
    }
  VIP_MUTEX_LOCK (&(vip_vi_ptr->handle.vip_nic_ptr->lock));

  *State = vip_vi_ptr->state;
  ViAttribs->ReliabilityLevel = vip_vi_ptr->reliability;
  ViAttribs->MaxTransferSize = vip_vi_ptr->mtu;
  ViAttribs->QoS = vip_vi_ptr->qos;
  ViAttribs->Ptag = vip_vi_ptr->vip_ptag_ptr;
  ViAttribs->EnableRdmaWrite = vip_vi_ptr->rdma_write;
  ViAttribs->EnableRdmaRead = VI_GM_ENABLE_RDMAREAD;

  if (vip_vi_ptr->send_queue.total_count == 0)
    {
      *ViSendQEmpty = VIP_TRUE;
    }
  else
    {
      *ViSendQEmpty = VIP_FALSE;
    }

  if (vip_vi_ptr->recv_queue.total_count == 0)
    {
      *ViRecvQEmpty = VIP_TRUE;
    }
  else
    {
      *ViRecvQEmpty = VIP_FALSE;
    }

  VIP_DEBUG (("Success"));
  VIP_MUTEX_UNLOCK (&(vip_vi_ptr->handle.vip_nic_ptr->lock));
  return VIP_SUCCESS;
}