qemu/hw/scsi/mptendian.c

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/*
* 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]);
}
}