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 "hw/pci/msi.h"
  28 #include "qemu/iov.h"
  29 #include "hw/scsi/scsi.h"
  30 #include "scsi/constants.h"
  31 #include "trace.h"
  32
  33 #include "mptsas.h"
  34 #include "mpi.h"
  35
  36 static void mptsas_fix_sgentry_endianness(MPISGEntry *sge)
  37 {
  38     sge->FlagsLength = le32_to_cpu(sge->FlagsLength);
  39     if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
  40         sge->u.Address64 = le64_to_cpu(sge->u.Address64);
  41     } else {
  42         sge->u.Address32 = le32_to_cpu(sge->u.Address32);
  43     }
  44 }
  45
  46 static void mptsas_fix_sgentry_endianness_reply(MPISGEntry *sge)
  47 {
  48     if (sge->FlagsLength & MPI_SGE_FLAGS_64_BIT_ADDRESSING) {
  49         sge->u.Address64 = cpu_to_le64(sge->u.Address64);
  50     } else {
  51         sge->u.Address32 = cpu_to_le32(sge->u.Address32);
  52     }
  53     sge->FlagsLength = cpu_to_le32(sge->FlagsLength);
  54 }
  55
  56 void mptsas_fix_scsi_io_endianness(MPIMsgSCSIIORequest *req)
  57 {
  58     req->MsgContext = le32_to_cpu(req->MsgContext);
  59     req->Control = le32_to_cpu(req->Control);
  60     req->DataLength = le32_to_cpu(req->DataLength);
  61     req->SenseBufferLowAddr = le32_to_cpu(req->SenseBufferLowAddr);
  62 }
  63
  64 void mptsas_fix_scsi_io_reply_endianness(MPIMsgSCSIIOReply *reply)
  65 {
  66     reply->MsgContext = cpu_to_le32(reply->MsgContext);
  67     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
  68     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
  69     reply->TransferCount = cpu_to_le32(reply->TransferCount);
  70     reply->SenseCount = cpu_to_le32(reply->SenseCount);
  71     reply->ResponseInfo = cpu_to_le32(reply->ResponseInfo);
  72     reply->TaskTag = cpu_to_le16(reply->TaskTag);
  73 }
  74
  75 void mptsas_fix_scsi_task_mgmt_endianness(MPIMsgSCSITaskMgmt *req)
  76 {
  77     req->MsgContext = le32_to_cpu(req->MsgContext);
  78     req->TaskMsgContext = le32_to_cpu(req->TaskMsgContext);
  79 }
  80
  81 void mptsas_fix_scsi_task_mgmt_reply_endianness(MPIMsgSCSITaskMgmtReply *reply)
  82 {
  83     reply->MsgContext = cpu_to_le32(reply->MsgContext);
  84     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
  85     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
  86     reply->TerminationCount = cpu_to_le32(reply->TerminationCount);
  87 }
  88
  89 void mptsas_fix_ioc_init_endianness(MPIMsgIOCInit *req)
  90 {
  91     req->MsgContext = le32_to_cpu(req->MsgContext);
  92     req->ReplyFrameSize = le16_to_cpu(req->ReplyFrameSize);
  93     req->HostMfaHighAddr = le32_to_cpu(req->HostMfaHighAddr);
  94     req->SenseBufferHighAddr = le32_to_cpu(req->SenseBufferHighAddr);
  95     req->ReplyFifoHostSignalingAddr =
  96         le32_to_cpu(req->ReplyFifoHostSignalingAddr);
  97     mptsas_fix_sgentry_endianness(&req->HostPageBufferSGE);
  98     req->MsgVersion = le16_to_cpu(req->MsgVersion);
  99     req->HeaderVersion = le16_to_cpu(req->HeaderVersion);
 100 }
 101
 102 void mptsas_fix_ioc_init_reply_endianness(MPIMsgIOCInitReply *reply)
 103 {
 104     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 105     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 106     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 107 }
 108
 109 void mptsas_fix_ioc_facts_endianness(MPIMsgIOCFacts *req)
 110 {
 111     req->MsgContext = le32_to_cpu(req->MsgContext);
 112 }
 113
 114 void mptsas_fix_ioc_facts_reply_endianness(MPIMsgIOCFactsReply *reply)
 115 {
 116     reply->MsgVersion = cpu_to_le16(reply->MsgVersion);
 117     reply->HeaderVersion = cpu_to_le16(reply->HeaderVersion);
 118     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 119     reply->IOCExceptions = cpu_to_le16(reply->IOCExceptions);
 120     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 121     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 122     reply->ReplyQueueDepth = cpu_to_le16(reply->ReplyQueueDepth);
 123     reply->RequestFrameSize = cpu_to_le16(reply->RequestFrameSize);
 124     reply->ProductID = cpu_to_le16(reply->ProductID);
 125     reply->CurrentHostMfaHighAddr = cpu_to_le32(reply->CurrentHostMfaHighAddr);
 126     reply->GlobalCredits = cpu_to_le16(reply->GlobalCredits);
 127     reply->CurrentSenseBufferHighAddr =
 128         cpu_to_le32(reply->CurrentSenseBufferHighAddr);
 129     reply->CurReplyFrameSize = cpu_to_le16(reply->CurReplyFrameSize);
 130     reply->FWImageSize = cpu_to_le32(reply->FWImageSize);
 131     reply->IOCCapabilities = cpu_to_le32(reply->IOCCapabilities);
 132     reply->HighPriorityQueueDepth = cpu_to_le16(reply->HighPriorityQueueDepth);
 133     mptsas_fix_sgentry_endianness_reply(&reply->HostPageBufferSGE);
 134     reply->ReplyFifoHostSignalingAddr =
 135         cpu_to_le32(reply->ReplyFifoHostSignalingAddr);
 136 }
 137
 138 void mptsas_fix_config_endianness(MPIMsgConfig *req)
 139 {
 140     req->ExtPageLength = le16_to_cpu(req->ExtPageLength);
 141     req->MsgContext = le32_to_cpu(req->MsgContext);
 142     req->PageAddress = le32_to_cpu(req->PageAddress);
 143     mptsas_fix_sgentry_endianness(&req->PageBufferSGE);
 144 }
 145
 146 void mptsas_fix_config_reply_endianness(MPIMsgConfigReply *reply)
 147 {
 148     reply->ExtPageLength = cpu_to_le16(reply->ExtPageLength);
 149     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 150     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 151     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 152 }
 153
 154 void mptsas_fix_port_facts_endianness(MPIMsgPortFacts *req)
 155 {
 156     req->MsgContext = le32_to_cpu(req->MsgContext);
 157 }
 158
 159 void mptsas_fix_port_facts_reply_endianness(MPIMsgPortFactsReply *reply)
 160 {
 161     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 162     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 163     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 164     reply->MaxDevices = cpu_to_le16(reply->MaxDevices);
 165     reply->PortSCSIID = cpu_to_le16(reply->PortSCSIID);
 166     reply->ProtocolFlags = cpu_to_le16(reply->ProtocolFlags);
 167     reply->MaxPostedCmdBuffers = cpu_to_le16(reply->MaxPostedCmdBuffers);
 168     reply->MaxPersistentIDs = cpu_to_le16(reply->MaxPersistentIDs);
 169     reply->MaxLanBuckets = cpu_to_le16(reply->MaxLanBuckets);
 170 }
 171
 172 void mptsas_fix_port_enable_endianness(MPIMsgPortEnable *req)
 173 {
 174     req->MsgContext = le32_to_cpu(req->MsgContext);
 175 }
 176
 177 void mptsas_fix_port_enable_reply_endianness(MPIMsgPortEnableReply *reply)
 178 {
 179     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 180     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 181     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 182 }
 183
 184 void mptsas_fix_event_notification_endianness(MPIMsgEventNotify *req)
 185 {
 186     req->MsgContext = le32_to_cpu(req->MsgContext);
 187 }
 188
 189 void mptsas_fix_event_notification_reply_endianness(MPIMsgEventNotifyReply *reply)
 190 {
 191     int length = reply->EventDataLength;
 192     int i;
 193
 194     reply->EventDataLength = cpu_to_le16(reply->EventDataLength);
 195     reply->MsgContext = cpu_to_le32(reply->MsgContext);
 196     reply->IOCStatus = cpu_to_le16(reply->IOCStatus);
 197     reply->IOCLogInfo = cpu_to_le32(reply->IOCLogInfo);
 198     reply->Event = cpu_to_le32(reply->Event);
 199     reply->EventContext = cpu_to_le32(reply->EventContext);
 200
 201     /* Really depends on the event kind.  This will do for now.  */
 202     for (i = 0; i < length; i++) {
 203         reply->Data[i] = cpu_to_le32(reply->Data[i]);
 204     }
 205 }
 206