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 } 206 207