hw/scsi/mptendian.c

   1 /*
   2  * QEMU LSI SAS1068 Host Bus Adapter emulation
   3  * Endianness conversion for MPI data structures
   4  *
   5  * Copyright (c) 2016 Red Hat, Inc.
   6  *
   7  * Authors: Paolo Bonzini <pbonzini@redhat.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This library 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 GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include "qemu/osdep.h"
  24 #include "hw/hw.h"
  25 #include "hw/pci/pci.h"
  26 #include "sysemu/dma.h"
  27 #include "sysemu/block-backend.h"
  28 #include "hw/pci/msi.h"
  29 #include "qemu/iov.h"
  30 #include "hw/scsi/scsi.h"
  31 #include "scsi/constants.h"
  32 #include "trace.h"
  33
  34 #include "mptsas.h"
  35 #include "mpi.h"
  36
  37 static void mptsas_fix_sgentry_endianness(MPISGEntry *sge)
  38 {
  39     le32_to_cpus(&sge->FlagsLength);
  40     if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
  41        le64_to_cpus(&sge->u.Address64);
  42     } else {
  43        le32_to_cpus(&sge->u.Address32);
  44     }
  45 }
  46
  47 static void mptsas_fix_sgentry_endianness_reply(MPISGEntry *sge)
  48 {
  49     if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
  50        cpu_to_le64s(&sge->u.Address64);
  51     } else {
  52        cpu_to_le32s(&sge->u.Address32);
  53     }
  54     cpu_to_le32s(&sge->FlagsLength);
  55 }
  56
  57 void mptsas_fix_scsi_io_endianness(MPIMsgSCSIIORequest *req)
  58 {
  59     le32_to_cpus(&req->MsgContext);
  60     le32_to_cpus(&req->Control);
  61     le32_to_cpus(&req->DataLength);
  62     le32_to_cpus(&req->SenseBufferLowAddr);
  63 }
  64
  65 void mptsas_fix_scsi_io_reply_endianness(MPIMsgSCSIIOReply *reply)
  66 {
  67     cpu_to_le32s(&reply->MsgContext);
  68     cpu_to_le16s(&reply->IOCStatus);
  69     cpu_to_le32s(&reply->IOCLogInfo);
  70     cpu_to_le32s(&reply->TransferCount);
  71     cpu_to_le32s(&reply->SenseCount);
  72     cpu_to_le32s(&reply->ResponseInfo);
  73     cpu_to_le16s(&reply->TaskTag);
  74 }
  75
  76 void mptsas_fix_scsi_task_mgmt_endianness(MPIMsgSCSITaskMgmt *req)
  77 {
  78     le32_to_cpus(&req->MsgContext);
  79     le32_to_cpus(&req->TaskMsgContext);
  80 }
  81
  82 void mptsas_fix_scsi_task_mgmt_reply_endianness(MPIMsgSCSITaskMgmtReply *reply)
  83 {
  84     cpu_to_le32s(&reply->MsgContext);
  85     cpu_to_le16s(&reply->IOCStatus);
  86     cpu_to_le32s(&reply->IOCLogInfo);
  87     cpu_to_le32s(&reply->TerminationCount);
  88 }
  89
  90 void mptsas_fix_ioc_init_endianness(MPIMsgIOCInit *req)
  91 {
  92     le32_to_cpus(&req->MsgContext);
  93     le16_to_cpus(&req->ReplyFrameSize);
  94     le32_to_cpus(&req->HostMfaHighAddr);
  95     le32_to_cpus(&req->SenseBufferHighAddr);
  96     le32_to_cpus(&req->ReplyFifoHostSignalingAddr);
  97     mptsas_fix_sgentry_endianness(&req->HostPageBufferSGE);
  98     le16_to_cpus(&req->MsgVersion);
  99     le16_to_cpus(&req->HeaderVersion);
 100 }
 101
 102 void mptsas_fix_ioc_init_reply_endianness(MPIMsgIOCInitReply *reply)
 103 {
 104     cpu_to_le32s(&reply->MsgContext);
 105     cpu_to_le16s(&reply->IOCStatus);
 106     cpu_to_le32s(&reply->IOCLogInfo);
 107 }
 108
 109 void mptsas_fix_ioc_facts_endianness(MPIMsgIOCFacts *req)
 110 {
 111     le32_to_cpus(&req->MsgContext);
 112 }
 113
 114 void mptsas_fix_ioc_facts_reply_endianness(MPIMsgIOCFactsReply *reply)
 115 {
 116     cpu_to_le16s(&reply->MsgVersion);
 117     cpu_to_le16s(&reply->HeaderVersion);
 118     cpu_to_le32s(&reply->MsgContext);
 119     cpu_to_le16s(&reply->IOCExceptions);
 120     cpu_to_le16s(&reply->IOCStatus);
 121     cpu_to_le32s(&reply->IOCLogInfo);
 122     cpu_to_le16s(&reply->ReplyQueueDepth);
 123     cpu_to_le16s(&reply->RequestFrameSize);
 124     cpu_to_le16s(&reply->ProductID);
 125     cpu_to_le32s(&reply->CurrentHostMfaHighAddr);
 126     cpu_to_le16s(&reply->GlobalCredits);
 127     cpu_to_le32s(&reply->CurrentSenseBufferHighAddr);
 128     cpu_to_le16s(&reply->CurReplyFrameSize);
 129     cpu_to_le32s(&reply->FWImageSize);
 130     cpu_to_le32s(&reply->IOCCapabilities);
 131     cpu_to_le16s(&reply->HighPriorityQueueDepth);
 132     mptsas_fix_sgentry_endianness_reply(&reply->HostPageBufferSGE);
 133     cpu_to_le32s(&reply->ReplyFifoHostSignalingAddr);
 134 }
 135
 136 void mptsas_fix_config_endianness(MPIMsgConfig *req)
 137 {
 138     le16_to_cpus(&req->ExtPageLength);
 139     le32_to_cpus(&req->MsgContext);
 140     le32_to_cpus(&req->PageAddress);
 141     mptsas_fix_sgentry_endianness(&req->PageBufferSGE);
 142 }
 143
 144 void mptsas_fix_config_reply_endianness(MPIMsgConfigReply *reply)
 145 {
 146     cpu_to_le16s(&reply->ExtPageLength);
 147     cpu_to_le32s(&reply->MsgContext);
 148     cpu_to_le16s(&reply->IOCStatus);
 149     cpu_to_le32s(&reply->IOCLogInfo);
 150 }
 151
 152 void mptsas_fix_port_facts_endianness(MPIMsgPortFacts *req)
 153 {
 154     le32_to_cpus(&req->MsgContext);
 155 }
 156
 157 void mptsas_fix_port_facts_reply_endianness(MPIMsgPortFactsReply *reply)
 158 {
 159     cpu_to_le32s(&reply->MsgContext);
 160     cpu_to_le16s(&reply->IOCStatus);
 161     cpu_to_le32s(&reply->IOCLogInfo);
 162     cpu_to_le16s(&reply->MaxDevices);
 163     cpu_to_le16s(&reply->PortSCSIID);
 164     cpu_to_le16s(&reply->ProtocolFlags);
 165     cpu_to_le16s(&reply->MaxPostedCmdBuffers);
 166     cpu_to_le16s(&reply->MaxPersistentIDs);
 167     cpu_to_le16s(&reply->MaxLanBuckets);
 168 }
 169
 170 void mptsas_fix_port_enable_endianness(MPIMsgPortEnable *req)
 171 {
 172     le32_to_cpus(&req->MsgContext);
 173 }
 174
 175 void mptsas_fix_port_enable_reply_endianness(MPIMsgPortEnableReply *reply)
 176 {
 177     cpu_to_le32s(&reply->MsgContext);
 178     cpu_to_le16s(&reply->IOCStatus);
 179     cpu_to_le32s(&reply->IOCLogInfo);
 180 }
 181
 182 void mptsas_fix_event_notification_endianness(MPIMsgEventNotify *req)
 183 {
 184     le32_to_cpus(&req->MsgContext);
 185 }
 186
 187 void mptsas_fix_event_notification_reply_endianness(MPIMsgEventNotifyReply *reply)
 188 {
 189     int length = reply->EventDataLength;
 190     int i;
 191
 192     cpu_to_le16s(&reply->EventDataLength);
 193     cpu_to_le32s(&reply->MsgContext);
 194     cpu_to_le16s(&reply->IOCStatus);
 195     cpu_to_le32s(&reply->IOCLogInfo);
 196     cpu_to_le32s(&reply->Event);
 197     cpu_to_le32s(&reply->EventContext);
 198
 199     /* Really depends on the event kind.  This will do for now.  */
 200     for (i = 0; i < length; i++) {
 201         cpu_to_le32s(&reply->Data[i]);
 202     }
 203 }
 204