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 2.1 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 } 205 206