text: /*
   * QEMU LSI SAS1068 Host Bus Adapter emulation
   * Endianness conversion for MPI data structures
   *
   * Copyright (c) 2016 Red Hat, Inc.
   *
   * Authors: Paolo Bonzini <pbonzini@redhat.com>
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, see <http://www.gnu.org/licenses/>.
   */
  
  #include "qemu/osdep.h"
  #include "hw/hw.h"
  #include "hw/pci/pci.h"
  #include "sysemu/dma.h"
  #include "sysemu/block-backend.h"
  #include "hw/pci/msi.h"
  #include "qemu/iov.h"
  #include "hw/scsi/scsi.h"
  #include "block/scsi.h"
  #include "trace.h"
  
  #include "mptsas.h"
  #include "mpi.h"
  
  static void mptsas_fix_sgentry_endianness(MPISGEntry *sge)
  {
      le32_to_cpus(&sge->FlagsLength);
      if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
         le64_to_cpus(&sge->u.Address64);
      } else {
         le32_to_cpus(&sge->u.Address32);
      }
  }
  
  static void mptsas_fix_sgentry_endianness_reply(MPISGEntry *sge)
  {
      if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
         cpu_to_le64s(&sge->u.Address64);
      } else {
         cpu_to_le32s(&sge->u.Address32);
      }
      cpu_to_le32s(&sge->FlagsLength);
  }
  
  void mptsas_fix_scsi_io_endianness(MPIMsgSCSIIORequest *req)
  {
      le32_to_cpus(&req->MsgContext);
      le32_to_cpus(&req->Control);
      le32_to_cpus(&req->DataLength);
      le32_to_cpus(&req->SenseBufferLowAddr);
  }
  
  void mptsas_fix_scsi_io_reply_endianness(MPIMsgSCSIIOReply *reply)
  {
      cpu_to_le32s(&reply->MsgContext);
      cpu_to_le16s(&reply->IOCStatus);
      cpu_to_le32s(&reply->IOCLogInfo);
      cpu_to_le32s(&reply->TransferCount);
      cpu_to_le32s(&reply->SenseCount);
      cpu_to_le32s(&reply->ResponseInfo);
      cpu_to_le16s(&reply->TaskTag);
  }
  
  void mptsas_fix_scsi_task_mgmt_endianness(MPIMsgSCSITaskMgmt *req)
  {
      le32_to_cpus(&req->MsgContext);
      le32_to_cpus(&req->TaskMsgContext);
  }
  
  void mptsas_fix_scsi_task_mgmt_reply_endianness(MPIMsgSCSITaskMgmtReply *reply)
  {
      cpu_to_le32s(&reply->MsgContext);
      cpu_to_le16s(&reply->IOCStatus);
      cpu_to_le32s(&reply->IOCLogInfo);
      cpu_to_le32s(&reply->TerminationCount);
  }
  
  void mptsas_fix_ioc_init_endianness(MPIMsgIOCInit *req)
  {
      le32_to_cpus(&req->MsgContext);
      le16_to_cpus(&req->ReplyFrameSize);
      le32_to_cpus(&req->HostMfaHighAddr);
      le32_to_cpus(&req->SenseBufferHighAddr);
      le32_to_cpus(&req->ReplyFifoHostSignalingAddr);
      mptsas_fix_sgentry_endianness(&req->HostPageBufferSGE);
      le16_to_cpus(&req->MsgVersion);
      le16_to_cpus(&req->HeaderVersion);
  }
  
  void mptsas_fix_ioc_init_reply_endianness(MPIMsgIOCInitReply *reply)
  {
      cpu_to_le32s(&reply->MsgContext);
      cpu_to_le16s(&reply->IOCStatus);
      cpu_to_le32s(&reply->IOCLogInfo);
  }
  
  void mptsas_fix_ioc_facts_endianness(MPIMsgIOCFacts *req)
  {
      le32_to_cpus(&req->MsgContext);
  }
  
  void mptsas_fix_ioc_facts_reply_endianness(MPIMsgIOCFactsReply *reply)
  {
      cpu_to_le16s(&reply->MsgVersion);
      cpu_to_le16s(&reply->HeaderVersion);
      cpu_to_le32s(&reply->MsgContext);
      cpu_to_le16s(&reply->IOCExceptions);
      cpu_to_le16s(&reply->IOCStatus);
      cpu_to_le32s(&reply->IOCLogInfo);
      cpu_to_le16s(&reply->ReplyQueueDepth);
      cpu_to_le16s(&reply->RequestFrameSize);
      cpu_to_le16s(&reply->ProductID);
      cpu_to_le32s(&reply->CurrentHostMfaHighAddr);
      cpu_to_le16s(&reply->GlobalCredits);
      cpu_to_le32s(&reply->CurrentSenseBufferHighAddr);
      cpu_to_le16s(&reply->CurReplyFrameSize);
      cpu_to_le32s(&reply->FWImageSize);
      cpu_to_le32s(&reply->IOCCapabilities);
      cpu_to_le16s(&reply->HighPriorityQueueDepth);
      mptsas_fix_sgentry_endianness_reply(&reply->HostPageBufferSGE);
      cpu_to_le32s(&reply->ReplyFifoHostSignalingAddr);
  }
  
  void mptsas_fix_config_endianness(MPIMsgConfig *req)
  {
      le16_to_cpus(&req->ExtPageLength);
      le32_to_cpus(&req->MsgContext);
      le32_to_cpus(&req->PageAddress);
      mptsas_fix_sgentry_endianness(&req->PageBufferSGE);
  }
  
  void mptsas_fix_config_reply_endianness(MPIMsgConfigReply *reply)
  {
      cpu_to_le16s(&reply->ExtPageLength);
      cpu_to_le32s(&reply->MsgContext);
      cpu_to_le16s(&reply->IOCStatus);
      cpu_to_le32s(&reply->IOCLogInfo);
  }
  
  void mptsas_fix_port_facts_endianness(MPIMsgPortFacts *req)
  {
      le32_to_cpus(&req->MsgContext);
  }
  
  void mptsas_fix_port_facts_reply_endianness(MPIMsgPortFactsReply *reply)
  {
      cpu_to_le32s(&reply->MsgContext);
      cpu_to_le16s(&reply->IOCStatus);
      cpu_to_le32s(&reply->IOCLogInfo);
      cpu_to_le16s(&reply->MaxDevices);
      cpu_to_le16s(&reply->PortSCSIID);
      cpu_to_le16s(&reply->ProtocolFlags);
      cpu_to_le16s(&reply->MaxPostedCmdBuffers);
      cpu_to_le16s(&reply->MaxPersistentIDs);
      cpu_to_le16s(&reply->MaxLanBuckets);
  }
  
  void mptsas_fix_port_enable_endianness(MPIMsgPortEnable *req)
  {
      le32_to_cpus(&req->MsgContext);
  }
  
  void mptsas_fix_port_enable_reply_endianness(MPIMsgPortEnableReply *reply)
  {
      cpu_to_le32s(&reply->MsgContext);
      cpu_to_le16s(&reply->IOCStatus);
      cpu_to_le32s(&reply->IOCLogInfo);
  }
  
  void mptsas_fix_event_notification_endianness(MPIMsgEventNotify *req)
  {
      le32_to_cpus(&req->MsgContext);
  }
  
  void mptsas_fix_event_notification_reply_endianness(MPIMsgEventNotifyReply *reply)
  {
      int length = reply->EventDataLength;
      int i;
  
      cpu_to_le16s(&reply->EventDataLength);
      cpu_to_le32s(&reply->MsgContext);
      cpu_to_le16s(&reply->IOCStatus);
      cpu_to_le32s(&reply->IOCLogInfo);
      cpu_to_le32s(&reply->Event);
      cpu_to_le32s(&reply->EventContext);
  
      /* Really depends on the event kind.  This will do for now.  */
      for (i = 0; i < length; i++) {
          cpu_to_le32s(&reply->Data[i]);
      }
  }
  
  