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/pci/pci.h"
  25 #include "sysemu/dma.h"
  26 #include "hw/pci/msi.h"
  27 #include "qemu/iov.h"
  28 #include "hw/scsi/scsi.h"
  29 #include "scsi/constants.h"
  30 #include "trace.h"
  31
  32 #include "mptsas.h"
  33 #include "mpi.h"
  34
  35 static void mptsas_fix_sgentry_endianness(MPISGEntry *sge)
  36 {
  37     sge->FlagsLength = le32_to_cpu(sge->FlagsLength);
  38     if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
  39         sge->u.Address64 = le64_to_cpu(sge->u.Address64);
  40     } else {
  41         sge->u.Address32 = le32_to_cpu(sge->u.Address32);
  42     }
  43 }
  44
  45 static void mptsas_fix_sgentry_endianness_reply(MPISGEntry *sge)
  46 {
  47     if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
  48         sge->u.Address64 = cpu_to_le64(sge->u.Address64);
  49     } else {
  50         sge->u.Address32 = cpu_to_le32(sge->u.Address32);
  51     }
  52     sge->FlagsLength = cpu_to_le32(sge->FlagsLength);
  53 }
  54
  55 void mptsas_fix_scsi_io_endianness(MPIMsgSCSIIORequest *req)
  56 {
  57     req->MsgContext = le32_to_cpu(req->MsgContext);
  58     req->Control = le32_to_cpu(req->Control);
  59     req->DataLength = le32_to_cpu(req->DataLength);
  60     req->SenseBufferLowAddr = le32_to_cpu(req->SenseBufferLowAddr);
  61 }
  62
  63 void mptsas_fix_scsi_io_reply_endianness(MPIMsgSCSIIOReply *reply)
  64 {
  65     reply->MsgContext = cpu_to_le32(reply->MsgContext);
  66     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
  67     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
  68     reply->TransferCount = cpu_to_le32(reply->TransferCount);
  69     reply->SenseCount = cpu_to_le32(reply->SenseCount);
  70     reply->ResponseInfo = cpu_to_le32(reply->ResponseInfo);
  71     reply->TaskTag = cpu_to_le16(reply->TaskTag);
  72 }
  73
  74 void mptsas_fix_scsi_task_mgmt_endianness(MPIMsgSCSITaskMgmt *req)
  75 {
  76     req->MsgContext = le32_to_cpu(req->MsgContext);
  77     req->TaskMsgContext = le32_to_cpu(req->TaskMsgContext);
  78 }
  79
  80 void mptsas_fix_scsi_task_mgmt_reply_endianness(MPIMsgSCSITaskMgmtReply *reply)
  81 {
  82     reply->MsgContext = cpu_to_le32(reply->MsgContext);
  83     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
  84     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
  85     reply->TerminationCount = cpu_to_le32(reply->TerminationCount);
  86 }
  87
  88 void mptsas_fix_ioc_init_endianness(MPIMsgIOCInit *req)
  89 {
  90     req->MsgContext = le32_to_cpu(req->MsgContext);
  91     req->ReplyFrameSize = le16_to_cpu(req->ReplyFrameSize);
  92     req->HostMfaHighAddr = le32_to_cpu(req->HostMfaHighAddr);
  93     req->SenseBufferHighAddr = le32_to_cpu(req->SenseBufferHighAddr);
  94     req->ReplyFifoHostSignalingAddr =
  95         le32_to_cpu(req->ReplyFifoHostSignalingAddr);
  96     mptsas_fix_sgentry_endianness(&req->HostPageBufferSGE);
  97     req->MsgVersion = le16_to_cpu(req->MsgVersion);
  98     req->HeaderVersion = le16_to_cpu(req->HeaderVersion);
  99 }
 100
 101 void mptsas_fix_ioc_init_reply_endianness(MPIMsgIOCInitReply *reply)
 102 {
 103     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 104     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 105     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 106 }
 107
 108 void mptsas_fix_ioc_facts_endianness(MPIMsgIOCFacts *req)
 109 {
 110     req->MsgContext = le32_to_cpu(req->MsgContext);
 111 }
 112
 113 void mptsas_fix_ioc_facts_reply_endianness(MPIMsgIOCFactsReply *reply)
 114 {
 115     reply->MsgVersion = cpu_to_le16(reply->MsgVersion);
 116     reply->HeaderVersion = cpu_to_le16(reply->HeaderVersion);
 117     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 118     reply->IOCExceptions = cpu_to_le16(reply->IOCExceptions);
 119     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 120     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 121     reply->ReplyQueueDepth = cpu_to_le16(reply->ReplyQueueDepth);
 122     reply->RequestFrameSize = cpu_to_le16(reply->RequestFrameSize);
 123     reply->ProductID = cpu_to_le16(reply->ProductID);
 124     reply->CurrentHostMfaHighAddr = cpu_to_le32(reply->CurrentHostMfaHighAddr);
 125     reply->GlobalCredits = cpu_to_le16(reply->GlobalCredits);
 126     reply->CurrentSenseBufferHighAddr =
 127         cpu_to_le32(reply->CurrentSenseBufferHighAddr);
 128     reply->CurReplyFrameSize = cpu_to_le16(reply->CurReplyFrameSize);
 129     reply->FWImageSize = cpu_to_le32(reply->FWImageSize);
 130     reply->IOCCapabilities = cpu_to_le32(reply->IOCCapabilities);
 131     reply->HighPriorityQueueDepth = cpu_to_le16(reply->HighPriorityQueueDepth);
 132     mptsas_fix_sgentry_endianness_reply(&reply->HostPageBufferSGE);
 133     reply->ReplyFifoHostSignalingAddr =
 134         cpu_to_le32(reply->ReplyFifoHostSignalingAddr);
 135 }
 136
 137 void mptsas_fix_config_endianness(MPIMsgConfig *req)
 138 {
 139     req->ExtPageLength = le16_to_cpu(req->ExtPageLength);
 140     req->MsgContext = le32_to_cpu(req->MsgContext);
 141     req->PageAddress = le32_to_cpu(req->PageAddress);
 142     mptsas_fix_sgentry_endianness(&req->PageBufferSGE);
 143 }
 144
 145 void mptsas_fix_config_reply_endianness(MPIMsgConfigReply *reply)
 146 {
 147     reply->ExtPageLength = cpu_to_le16(reply->ExtPageLength);
 148     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 149     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 150     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 151 }
 152
 153 void mptsas_fix_port_facts_endianness(MPIMsgPortFacts *req)
 154 {
 155     req->MsgContext = le32_to_cpu(req->MsgContext);
 156 }
 157
 158 void mptsas_fix_port_facts_reply_endianness(MPIMsgPortFactsReply *reply)
 159 {
 160     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 161     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 162     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 163     reply->MaxDevices = cpu_to_le16(reply->MaxDevices);
 164     reply->PortSCSIID = cpu_to_le16(reply->PortSCSIID);
 165     reply->ProtocolFlags = cpu_to_le16(reply->ProtocolFlags);
 166     reply->MaxPostedCmdBuffers = cpu_to_le16(reply->MaxPostedCmdBuffers);
 167     reply->MaxPersistentIDs = cpu_to_le16(reply->MaxPersistentIDs);
 168     reply->MaxLanBuckets = cpu_to_le16(reply->MaxLanBuckets);
 169 }
 170
 171 void mptsas_fix_port_enable_endianness(MPIMsgPortEnable *req)
 172 {
 173     req->MsgContext = le32_to_cpu(req->MsgContext);
 174 }
 175
 176 void mptsas_fix_port_enable_reply_endianness(MPIMsgPortEnableReply *reply)
 177 {
 178     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 179     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 180     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 181 }
 182
 183 void mptsas_fix_event_notification_endianness(MPIMsgEventNotify *req)
 184 {
 185     req->MsgContext = le32_to_cpu(req->MsgContext);
 186 }
 187
 188 void mptsas_fix_event_notification_reply_endianness(MPIMsgEventNotifyReply *reply)
 189 {
 190     int length = reply->EventDataLength;
 191     int i;
 192
 193     reply->EventDataLength = cpu_to_le16(reply->EventDataLength);
 194     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 195     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 196     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 197     reply->Event = cpu_to_le32(reply->Event);
 198     reply->EventContext = cpu_to_le32(reply->EventContext);
 199
 200     /* Really depends on the event kind.  This will do for now.  */
 201     for (i = 0; i < length; i++) {
 202         reply->Data[i] = cpu_to_le32(reply->Data[i]);
 203     }
 204 }
 205