MdePkg/Library/UefiScsiLib/UefiScsiLib.c

   1 /** @file
   2   UEFI SCSI Library implementation
   3
   4   Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15
  16 #include <Uefi.h>
  17 #include <Library/BaseLib.h>
  18 #include <Library/DebugLib.h>
  19 #include <Library/UefiScsiLib.h>
  20 #include <Library/BaseMemoryLib.h>
  21
  22 #include <IndustryStandard/Scsi.h>
  23
  24
  25   //
  26   // Max bytes needed to represent ID of a SCSI device
  27   //
  28 #define EFI_SCSI_TARGET_MAX_BYTES (0x10)
  29
  30   //
  31   // bit5..7 are for Logical unit number
  32   // 11100000b (0xe0)
  33   //
  34 #define EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK 0xe0
  35
  36   //
  37   // Scsi Command Length six or ten
  38   //
  39 #define EFI_SCSI_OP_LENGTH_SIX 0x6
  40 #define EFI_SCSI_OP_LENGTH_TEN 0xa
  41
  42
  43
  44 /**
  45   Execute Test Unit Ready SCSI command on a specific SCSI target.
  46
  47   Executes the Test Unit Ready command on the SCSI target specified by ScsiIo.
  48   If Timeout is zero, then this function waits indefinitely for the command to complete.
  49   If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
  50   If ScsiIo is NULL, then ASSERT().
  51   If SenseDataLength is NULL, then ASSERT().
  52   If HostAdapterStatus is NULL, then ASSERT().
  53   If TargetStatus is NULL, then ASSERT().
  54
  55
  56   @param[in]     ScsiIo             A pointer to the SCSI I/O Protocol instance
  57                                     for the specific SCSI target.
  58   @param[in]     Timeout            The timeout in 100 ns units to use for the execution
  59                                     of this SCSI Request Packet. A Timeout value of
  60                                     zero means that this function will wait indefinitely
  61                                     for the SCSI Request Packet to execute. If Timeout
  62                                     is greater than zero, then this function will return
  63                                     EFI_TIMEOUT if the time required to execute the SCSI
  64                                     Request Packet is greater than Timeout.
  65   @param[in, out] SenseData         A pointer to sense data that was generated by
  66                                     the execution of the SCSI Request Packet. This
  67                                     buffer must be allocated by the caller.
  68                                     If SenseDataLength is 0, then this parameter is
  69                                     optional and may be NULL.
  70   @param[in, out] SenseDataLength   On input, a pointer to the length in bytes of
  71                                     the SenseData buffer. On output, a pointer to
  72                                     the number of bytes written to the SenseData buffer.
  73   @param[out]     HostAdapterStatus The status of the SCSI Host Controller that produces
  74                                     the SCSI bus containing the SCSI target specified by
  75                                     ScsiIo when the SCSI Request Packet was executed.
  76                                     See the EFI SCSI I/O Protocol in the UEFI Specification
  77                                     for details on the possible return values.
  78   @param[out]     TargetStatus      The status returned by the SCSI target specified
  79                                     by ScsiIo when the SCSI Request Packet was executed
  80                                     on the SCSI Host Controller. See the EFI SCSI I/O
  81                                     Protocol in the UEFI Specification for details on
  82                                     the possible return values.
  83
  84   @retval EFI_SUCCESS          The command was executed successfully.
  85                                See HostAdapterStatus, TargetStatus, SenseDataLength,
  86                                and SenseData in that order for additional status
  87                                information.
  88   @retval EFI_NOT_READY        The SCSI Request Packet could not be sent because
  89                                there are too many SCSI Command Packets already
  90                                queued. The SCSI Request Packet was not sent, so
  91                                no additional status information is available.
  92                                The caller may retry again later.
  93   @retval EFI_DEVICE_ERROR     A device error occurred while attempting to send
  94                                SCSI Request Packet.  See HostAdapterStatus,
  95                                TargetStatus, SenseDataLength, and SenseData in that
  96                                order for additional status information.
  97   @retval EFI_UNSUPPORTED      The command described by the SCSI Request Packet
  98                                is not supported by the SCSI initiator(i.e., SCSI
  99                                Host Controller). The SCSI Request Packet was not
 100                                sent, so no additional status information is available.
 101   @retval EFI_TIMEOUT          A timeout occurred while waiting for the SCSI Request
 102                                Packet to execute.  See HostAdapterStatus, TargetStatus,
 103                                SenseDataLength, and SenseData in that order for
 104                                additional status information.
 105
 106 **/
 107 EFI_STATUS
 108 EFIAPI
 109 ScsiTestUnitReadyCommand (
 110   IN     EFI_SCSI_IO_PROTOCOL  *ScsiIo,
 111   IN     UINT64                Timeout,
 112   IN OUT VOID                  *SenseData,  OPTIONAL
 113   IN OUT UINT8                 *SenseDataLength,
 114      OUT UINT8                 *HostAdapterStatus,
 115      OUT UINT8                 *TargetStatus
 116   )
 117 {
 118   EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
 119   UINT64                          Lun;
 120   UINT8                           *Target;
 121   UINT8                           TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
 122   EFI_STATUS                      Status;
 123   UINT8                           Cdb[EFI_SCSI_OP_LENGTH_SIX];
 124
 125   ASSERT (SenseDataLength != NULL);
 126   ASSERT (HostAdapterStatus != NULL);
 127   ASSERT (TargetStatus != NULL);
 128   ASSERT (ScsiIo != NULL);
 129
 130   ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
 131   ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
 132
 133   CommandPacket.Timeout         = Timeout;
 134   CommandPacket.InDataBuffer    = NULL;
 135   CommandPacket.InTransferLength= 0;
 136   CommandPacket.OutDataBuffer    = NULL;
 137   CommandPacket.OutTransferLength= 0;
 138   CommandPacket.SenseData       = SenseData;
 139   CommandPacket.Cdb             = Cdb;
 140   //
 141   // Fill Cdb for Test Unit Ready Command
 142   //
 143   Target = &TargetArray[0];
 144   ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
 145
 146   Cdb[0]                        = EFI_SCSI_OP_TEST_UNIT_READY;
 147   Cdb[1]                        = (UINT8) (LShiftU64 (Lun, 5) & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
 148   CommandPacket.CdbLength       = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
 149   CommandPacket.SenseDataLength = *SenseDataLength;
 150
 151   Status                        = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
 152
 153   *HostAdapterStatus            = CommandPacket.HostAdapterStatus;
 154   *TargetStatus                 = CommandPacket.TargetStatus;
 155   *SenseDataLength              = CommandPacket.SenseDataLength;
 156
 157   return Status;
 158 }
 159
 160
 161 /**
 162   Execute Inquiry SCSI command on a specific SCSI target.
 163
 164   Executes the Inquiry command on the SCSI target specified by ScsiIo.
 165   If Timeout is zero, then this function waits indefinitely for the command to complete.
 166   If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
 167   If ScsiIo is NULL, then ASSERT().
 168   If SenseDataLength is NULL, then ASSERT().
 169   If HostAdapterStatus is NULL, then ASSERT().
 170   If TargetStatus is NULL, then ASSERT().
 171   If InquiryDataLength is NULL, then ASSERT().
 172
 173   @param[in]      ScsiIo                 A pointer to the SCSI I/O Protocol instance
 174                                          for the specific SCSI target.
 175   @param[in]      Timeout                The timeout in 100 ns units to use for the
 176                                          execution of this SCSI Request Packet. A Timeout
 177                                          value of zero means that this function will wait
 178                                          indefinitely for the SCSI Request Packet to execute.
 179                                          If Timeout is greater than zero, then this function
 180                                          will return EFI_TIMEOUT if the time required to
 181                                          execute the SCSI Request Packet is greater than Timeout.
 182   @param[in, out] SenseData              A pointer to sense data that was generated
 183                                          by the execution of the SCSI Request Packet.
 184                                          This buffer must be allocated by the caller.
 185                                          If SenseDataLength is 0, then this parameter
 186                                          is optional and may be NULL.
 187   @param[in, out] SenseDataLength        On input, the length in bytes of the SenseData buffer.
 188                                          On output, the number of bytes written to the SenseData buffer.
 189   @param[out]     HostAdapterStatus      The status of the SCSI Host Controller that
 190                                          produces the SCSI bus containing the SCSI
 191                                          target specified by ScsiIo when the SCSI
 192                                          Request Packet was executed.  See the EFI
 193                                          SCSI I/O Protocol in the UEFI Specification
 194                                          for details on the possible return values.
 195   @param[out]     TargetStatus           The status returned by the SCSI target specified
 196                                          by ScsiIo when the SCSI Request Packet was
 197                                          executed on the SCSI Host Controller.
 198                                          See the EFI SCSI I/O Protocol in the UEFI
 199                                          Specification for details on the possible
 200                                          return values.
 201   @param[in, out] InquiryDataBuffer      A pointer to inquiry data that was generated
 202                                          by the execution of the SCSI Request Packet.
 203                                          This buffer must be allocated by the caller.
 204                                          If InquiryDataLength is 0, then this parameter
 205                                          is optional and may be NULL.
 206   @param[in, out] InquiryDataLength      On input, a pointer to the length in bytes
 207                                          of the InquiryDataBuffer buffer.
 208                                          On output, a pointer to the number of bytes
 209                                          written to the InquiryDataBuffer buffer.
 210   @param[in]      EnableVitalProductData If TRUE, then the supported vital product
 211                                          data is returned in InquiryDataBuffer.
 212                                          If FALSE, then the standard inquiry data is
 213                                          returned in InquiryDataBuffer.
 214
 215   @retval EFI_SUCCESS          The command was executed successfully. See HostAdapterStatus,
 216                                TargetStatus, SenseDataLength, and SenseData in that order
 217                                for additional status information.
 218   @retval EFI_BAD_BUFFER_SIZE  The SCSI Request Packet was executed, but the entire
 219                                InquiryDataBuffer could not be transferred. The actual
 220                                number of bytes transferred is returned in InquiryDataLength.
 221   @retval EFI_NOT_READY        The SCSI Request Packet could not be sent because there
 222                                are too many SCSI Command Packets already queued.
 223                                The SCSI Request Packet was not sent, so no additional
 224                                status information is available. The caller may retry again later.
 225   @retval EFI_DEVICE_ERROR     A device error occurred while attempting to send SCSI
 226                                Request Packet.  See HostAdapterStatus, TargetStatus,
 227                                SenseDataLength, and SenseData in that order for additional
 228                                status information.
 229   @retval EFI_UNSUPPORTED      The command described by the SCSI Request Packet is not
 230                                supported by the SCSI initiator(i.e., SCSI  Host Controller).
 231                                The SCSI Request Packet was not sent, so no additional
 232                                status information is available.
 233   @retval EFI_TIMEOUT          A timeout occurred while waiting for the SCSI Request
 234                                Packet to execute.  See HostAdapterStatus, TargetStatus,
 235                                SenseDataLength, and SenseData in that order for
 236                                additional status information.
 237
 238 **/
 239 EFI_STATUS
 240 EFIAPI
 241 ScsiInquiryCommand (
 242   IN     EFI_SCSI_IO_PROTOCOL  *ScsiIo,
 243   IN     UINT64                Timeout,
 244   IN OUT VOID                  *SenseData,  OPTIONAL
 245   IN OUT UINT8                 *SenseDataLength,
 246      OUT UINT8                 *HostAdapterStatus,
 247      OUT UINT8                 *TargetStatus,
 248   IN OUT VOID                  *InquiryDataBuffer,    OPTIONAL
 249   IN OUT UINT32                *InquiryDataLength,
 250   IN     BOOLEAN               EnableVitalProductData
 251   )
 252 {
 253   EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
 254   UINT64                          Lun;
 255   UINT8                           *Target;
 256   UINT8                           TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
 257   EFI_STATUS                      Status;
 258   UINT8                           Cdb[EFI_SCSI_OP_LENGTH_SIX];
 259
 260   ASSERT (SenseDataLength != NULL);
 261   ASSERT (HostAdapterStatus != NULL);
 262   ASSERT (TargetStatus != NULL);
 263   ASSERT (InquiryDataLength != NULL);
 264   ASSERT (ScsiIo != NULL);
 265
 266   ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
 267   ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
 268
 269   CommandPacket.Timeout         = Timeout;
 270   CommandPacket.InDataBuffer    = InquiryDataBuffer;
 271   CommandPacket.InTransferLength= *InquiryDataLength;
 272   CommandPacket.SenseData       = SenseData;
 273   CommandPacket.SenseDataLength = *SenseDataLength;
 274   CommandPacket.Cdb             = Cdb;
 275
 276   Target = &TargetArray[0];
 277   ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
 278
 279   Cdb[0]  = EFI_SCSI_OP_INQUIRY;
 280   Cdb[1]  = (UINT8) (LShiftU64 (Lun, 5) & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
 281   if (EnableVitalProductData) {
 282     Cdb[1] |= 0x01;
 283   }
 284
 285   if (*InquiryDataLength > 0xff) {
 286     *InquiryDataLength = 0xff;
 287   }
 288
 289   Cdb[4]                      = (UINT8) (*InquiryDataLength);
 290   CommandPacket.CdbLength     = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
 291   CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
 292
 293   Status                      = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
 294
 295   *HostAdapterStatus          = CommandPacket.HostAdapterStatus;
 296   *TargetStatus               = CommandPacket.TargetStatus;
 297   *SenseDataLength            = CommandPacket.SenseDataLength;
 298   *InquiryDataLength          = CommandPacket.InTransferLength;
 299
 300   return Status;
 301 }
 302
 303
 304 /**
 305   Execute Mode Sense(10) SCSI command on a specific SCSI target.
 306
 307   Executes the SCSI Mode Sense(10) command on the SCSI target specified by ScsiIo.
 308   If Timeout is zero, then this function waits indefinitely for the command to complete.
 309   If Timeout is greater than zero, then the command is executed and will timeout
 310   after Timeout 100 ns units.  The DBDField, PageControl, and PageCode parameters
 311   are used to construct the CDB for this SCSI command.
 312   If ScsiIo is NULL, then ASSERT().
 313   If SenseDataLength is NULL, then ASSERT().
 314   If HostAdapterStatus is NULL, then ASSERT().
 315   If TargetStatus is NULL, then ASSERT().
 316   If DataLength is NULL, then ASSERT().
 317
 318
 319   @param[in]      ScsiIo             A pointer to the SCSI I/O Protocol instance
 320                                      for the specific SCSI target.
 321   @param[in]      Timeout            The timeout in 100 ns units to use for the
 322                                      execution of this SCSI Request Packet. A Timeout
 323                                      value of zero means that this function will wait
 324                                      indefinitely for the SCSI Request Packet to execute.
 325                                      If Timeout is greater than zero, then this function
 326                                      will return EFI_TIMEOUT if the time required to
 327                                      execute the SCSI Request Packet is greater than Timeout.
 328   @param[in, out]  SenseData         A pointer to sense data that was generated
 329                                      by the execution of the SCSI Request Packet.
 330                                      This buffer must be allocated by the caller.
 331                                      If SenseDataLength is 0, then this parameter
 332                                      is optional and may be NULL.
 333   @param[in, out]  SenseDataLength   On input, the length in bytes of the SenseData buffer.
 334                                      On output, the number of bytes written to the SenseData buffer.
 335   @param[out]     HostAdapterStatus  The status of the SCSI Host Controller that
 336                                      produces the SCSI bus containing the SCSI target
 337                                      specified by ScsiIo when the SCSI Request Packet
 338                                      was executed. See the EFI SCSI I/O Protocol in the
 339                                      UEFI Specification for details on the possible
 340                                      return values.
 341   @param[out]     TargetStatus       The status returned by the SCSI target specified
 342                                      by ScsiIo when the SCSI Request Packet was executed
 343                                      on the SCSI Host Controller.  See the EFI SCSI
 344                                      I/O Protocol in the UEFI Specification for details
 345                                      on the possible return values.
 346   @param[in, out]  DataBuffer        A pointer to data that was generated by the
 347                                      execution of the SCSI Request Packet.  This
 348                                      buffer must be allocated by the caller. If
 349                                      DataLength is 0, then this parameter is optional
 350                                      and may be NULL.
 351   @param[in, out]  DataLength        On input, a pointer to the length in bytes of
 352                                      the DataBuffer buffer.  On output, a pointer
 353                                      to the number of bytes written to the DataBuffer
 354                                      buffer.
 355   @param[in]      DBDField           Specifies the DBD field of the CDB for this SCSI Command.
 356   @param[in]      PageControl        Specifies the PC field of the CDB for this SCSI Command.
 357   @param[in]      PageCode           Specifies the Page Control field of the CDB for this SCSI Command.
 358
 359   @retval EFI_SUCCESS               The command was executed successfully.
 360                                     See HostAdapterStatus, TargetStatus, SenseDataLength,
 361                                     and SenseData in that order for additional status information.
 362   @retval EFI_BAD_BUFFER_SIZE       The SCSI Request Packet was executed, but the
 363                                     entire DataBuffer could not be transferred.
 364                                     The actual number of bytes transferred is returned
 365                                     in DataLength.
 366   @retval EFI_NOT_READY             The SCSI Request Packet could not be sent because
 367                                     there are too many SCSI Command Packets already queued.
 368                                     The SCSI Request Packet was not sent, so no additional
 369                                     status information is available.  The caller may retry
 370                                     again later.
 371   @retval EFI_DEVICE_ERROR          A device error occurred while attempting to send
 372                                     SCSI Request Packet.  See HostAdapterStatus, TargetStatus,
 373                                     SenseDataLength, and SenseData in that order for
 374                                     additional status information.
 375   @retval EFI_UNSUPPORTED           The command described by the SCSI Request Packet
 376                                     is not supported by the SCSI initiator(i.e., SCSI
 377                                     Host Controller). The SCSI Request Packet was not
 378                                     sent, so no additional status information is available.
 379   @retval EFI_TIMEOUT               A timeout occurred while waiting for the SCSI
 380                                     Request Packet to execute.  See HostAdapterStatus,
 381                                     TargetStatus, SenseDataLength, and SenseData in that
 382                                     order for additional status information.
 383
 384 **/
 385 EFI_STATUS
 386 EFIAPI
 387 ScsiModeSense10Command (
 388   IN     EFI_SCSI_IO_PROTOCOL    *ScsiIo,
 389   IN     UINT64                  Timeout,
 390   IN OUT VOID                    *SenseData,  OPTIONAL
 391   IN OUT UINT8                   *SenseDataLength,
 392      OUT UINT8                   *HostAdapterStatus,
 393      OUT UINT8                   *TargetStatus,
 394   IN OUT VOID                    *DataBuffer, OPTIONAL
 395   IN OUT UINT32                  *DataLength,
 396   IN     UINT8                   DBDField,    OPTIONAL
 397   IN     UINT8                   PageControl,
 398   IN     UINT8                   PageCode
 399   )
 400 {
 401   EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
 402   UINT64                          Lun;
 403   UINT8                           *Target;
 404   UINT8                           TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
 405   EFI_STATUS                      Status;
 406   UINT8                           Cdb[EFI_SCSI_OP_LENGTH_TEN];
 407
 408   ASSERT (SenseDataLength != NULL);
 409   ASSERT (HostAdapterStatus != NULL);
 410   ASSERT (TargetStatus != NULL);
 411   ASSERT (DataLength != NULL);
 412   ASSERT (ScsiIo != NULL);
 413
 414   ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
 415   ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
 416
 417   CommandPacket.Timeout         = Timeout;
 418   CommandPacket.InDataBuffer    = DataBuffer;
 419   CommandPacket.SenseData       = SenseData;
 420   CommandPacket.InTransferLength= *DataLength;
 421   CommandPacket.Cdb             = Cdb;
 422   //
 423   // Fill Cdb for Mode Sense (10) Command
 424   //
 425   Target = &TargetArray[0];
 426   ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
 427
 428   Cdb[0]                        = EFI_SCSI_OP_MODE_SEN10;
 429   //
 430   // DBDField is in Cdb[1] bit3 of (bit7..0)
 431   //
 432   Cdb[1]                        = (UINT8) ((LShiftU64 (Lun, 5) & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK) + ((DBDField << 3) & 0x08));
 433   //
 434   // PageControl is in Cdb[2] bit7..6, PageCode is in Cdb[2] bit5..0
 435   //
 436   Cdb[2]                        = (UINT8) (((PageControl << 6) & 0xc0) | (PageCode & 0x3f));
 437   Cdb[7]                        = (UINT8) (*DataLength >> 8);
 438   Cdb[8]                        = (UINT8) (*DataLength);
 439
 440   CommandPacket.CdbLength       = EFI_SCSI_OP_LENGTH_TEN;
 441   CommandPacket.DataDirection   = EFI_SCSI_DATA_IN;
 442   CommandPacket.SenseDataLength = *SenseDataLength;
 443
 444   Status                        = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
 445
 446   *HostAdapterStatus            = CommandPacket.HostAdapterStatus;
 447   *TargetStatus                 = CommandPacket.TargetStatus;
 448   *SenseDataLength              = CommandPacket.SenseDataLength;
 449   *DataLength                   = CommandPacket.InTransferLength;
 450
 451   return Status;
 452 }
 453
 454
 455 /**
 456   Execute Request Sense SCSI command on a specific SCSI target.
 457
 458   Executes the Request Sense command on the SCSI target specified by ScsiIo.
 459   If Timeout is zero, then this function waits indefinitely for the command to complete.
 460   If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
 461   If ScsiIo is NULL, then ASSERT().
 462   If SenseDataLength is NULL, then ASSERT().
 463   If HostAdapterStatus is NULL, then ASSERT().
 464   If TargetStatus is NULL, then ASSERT().
 465
 466   @param[in]       ScsiIo               A pointer to SCSI IO protocol.
 467   @param[in]       Timeout              The length of timeout period.
 468   @param[in, out]  SenseData            A pointer to output sense data.
 469   @param[in, out]  SenseDataLength      The length of output sense data.
 470   @param[out]      HostAdapterStatus    The status of Host Adapter.
 471   @param[out]      TargetStatus         The status of the target.
 472
 473   @retval EFI_SUCCESS                   Command is executed successfully.
 474   @retval EFI_NOT_READY                 The SCSI Request Packet could not be sent because there are
 475                                         too many SCSI Command Packets already queued.
 476   @retval EFI_DEVICE_ERROR              A device error occurred while attempting to send SCSI Request Packet.
 477   @retval EFI_UNSUPPORTED               The command described by the SCSI Request Packet is not supported by
 478                                         the SCSI initiator(i.e., SCSI  Host Controller)
 479   @retval EFI_TIMEOUT                   A timeout occurred while waiting for the SCSI Request Packet to execute.
 480
 481 **/
 482 EFI_STATUS
 483 EFIAPI
 484 ScsiRequestSenseCommand (
 485   IN     EFI_SCSI_IO_PROTOCOL  *ScsiIo,
 486   IN     UINT64                Timeout,
 487   IN OUT VOID                  *SenseData,  OPTIONAL
 488   IN OUT UINT8                 *SenseDataLength,
 489      OUT UINT8                 *HostAdapterStatus,
 490      OUT UINT8                 *TargetStatus
 491   )
 492 {
 493   EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
 494   UINT64                          Lun;
 495   UINT8                           *Target;
 496   UINT8                           TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
 497   EFI_STATUS                      Status;
 498   UINT8                           Cdb[EFI_SCSI_OP_LENGTH_SIX];
 499
 500   ASSERT (SenseDataLength != NULL);
 501   ASSERT (HostAdapterStatus != NULL);
 502   ASSERT (TargetStatus != NULL);
 503   ASSERT (ScsiIo != NULL);
 504
 505   ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
 506   ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
 507
 508   CommandPacket.Timeout         = Timeout;
 509   CommandPacket.InDataBuffer    = SenseData;
 510   CommandPacket.SenseData       = NULL;
 511   CommandPacket.InTransferLength= *SenseDataLength;
 512   CommandPacket.Cdb             = Cdb;
 513   //
 514   // Fill Cdb for Request Sense Command
 515   //
 516   Target = &TargetArray[0];
 517   ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
 518
 519   Cdb[0]                        = EFI_SCSI_OP_REQUEST_SENSE;
 520   Cdb[1]                        = (UINT8) (LShiftU64 (Lun, 5) & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
 521   Cdb[4]                        = (UINT8) (*SenseDataLength);
 522
 523   CommandPacket.CdbLength       = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
 524   CommandPacket.DataDirection   = EFI_SCSI_DATA_IN;
 525   CommandPacket.SenseDataLength = 0;
 526
 527   Status                        = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
 528
 529   *HostAdapterStatus            = CommandPacket.HostAdapterStatus;
 530   *TargetStatus                 = CommandPacket.TargetStatus;
 531   *SenseDataLength              = (UINT8) CommandPacket.InTransferLength;
 532
 533   return Status;
 534 }
 535
 536
 537 /**
 538   Execute Read Capacity SCSI command on a specific SCSI target.
 539
 540   Executes the SCSI Read Capacity command on the SCSI target specified by ScsiIo.
 541   If Timeout is zero, then this function waits indefinitely for the command to complete.
 542   If Timeout is greater than zero, then the command is executed and will timeout after
 543   Timeout 100 ns units.  The Pmi parameter is used to construct the CDB for this SCSI command.
 544   If ScsiIo is NULL, then ASSERT().
 545   If SenseDataLength is NULL, then ASSERT().
 546   If HostAdapterStatus is NULL, then ASSERT().
 547   If TargetStatus is NULL, then ASSERT().
 548   If DataLength is NULL, then ASSERT().
 549
 550   @param[in]      ScsiIo               A pointer to SCSI IO protocol.
 551   @param[in]      Timeout              The length of timeout period.
 552   @param[in, out] SenseData            A pointer to output sense data.
 553   @param[in, out] SenseDataLength      The length of output sense data.
 554   @param[out]     HostAdapterStatus    The status of Host Adapter.
 555   @param[out]     TargetStatus         The status of the target.
 556   @param[in, out] DataBuffer           A pointer to a data buffer.
 557   @param[in, out] DataLength           The length of data buffer.
 558   @param[in]      Pmi                  Partial medium indicator.
 559
 560   @retval  EFI_SUCCESS           Command is executed successfully.
 561   @retval  EFI_BAD_BUFFER_SIZE   The SCSI Request Packet was executed, but the entire
 562                                  DataBuffer could not be transferred. The actual
 563                                  number of bytes transferred is returned in DataLength.
 564   @retval  EFI_NOT_READY         The SCSI Request Packet could not be sent because
 565                                  there are too many SCSI Command Packets already queued.
 566   @retval  EFI_DEVICE_ERROR      A device error occurred while attempting to send SCSI Request Packet.
 567   @retval  EFI_UNSUPPORTED       The command described by the SCSI Request Packet
 568                                  is not supported by the SCSI initiator(i.e., SCSI  Host Controller)
 569   @retval  EFI_TIMEOUT           A timeout occurred while waiting for the SCSI Request Packet to execute.
 570
 571 **/
 572 EFI_STATUS
 573 EFIAPI
 574 ScsiReadCapacityCommand (
 575   IN     EFI_SCSI_IO_PROTOCOL  *ScsiIo,
 576   IN     UINT64                Timeout,
 577   IN OUT VOID                  *SenseData,    OPTIONAL
 578   IN OUT UINT8                 *SenseDataLength,
 579      OUT UINT8                 *HostAdapterStatus,
 580      OUT UINT8                 *TargetStatus,
 581   IN OUT VOID                  *DataBuffer,   OPTIONAL
 582   IN OUT UINT32                *DataLength,
 583   IN     BOOLEAN               Pmi
 584   )
 585 {
 586   EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
 587   UINT64                          Lun;
 588   UINT8                           *Target;
 589   UINT8                           TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
 590   EFI_STATUS                      Status;
 591   UINT8                           Cdb[EFI_SCSI_OP_LENGTH_TEN];
 592
 593   ASSERT (SenseDataLength != NULL);
 594   ASSERT (HostAdapterStatus != NULL);
 595   ASSERT (TargetStatus != NULL);
 596   ASSERT (DataLength != NULL);
 597   ASSERT (ScsiIo != NULL);
 598
 599   ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
 600   ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
 601
 602   CommandPacket.Timeout         = Timeout;
 603   CommandPacket.InDataBuffer    = DataBuffer;
 604   CommandPacket.SenseData       = SenseData;
 605   CommandPacket.InTransferLength= *DataLength;
 606   CommandPacket.Cdb             = Cdb;
 607   //
 608   // Fill Cdb for Read Capacity Command
 609   //
 610   Target = &TargetArray[0];
 611   ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
 612
 613   Cdb[0]  = EFI_SCSI_OP_READ_CAPACITY;
 614   Cdb[1]  = (UINT8) (LShiftU64 (Lun, 5) & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
 615   if (!Pmi) {
 616     //
 617     // Partial medium indicator,if Pmi is FALSE, the Cdb.2 ~ Cdb.5 MUST BE ZERO.
 618     //
 619     ZeroMem ((Cdb + 2), 4);
 620   } else {
 621     Cdb[8] |= 0x01;
 622   }
 623
 624   CommandPacket.CdbLength       = EFI_SCSI_OP_LENGTH_TEN;
 625   CommandPacket.DataDirection   = EFI_SCSI_DATA_IN;
 626   CommandPacket.SenseDataLength = *SenseDataLength;
 627
 628   Status                        = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
 629
 630   *HostAdapterStatus            = CommandPacket.HostAdapterStatus;
 631   *TargetStatus                 = CommandPacket.TargetStatus;
 632   *SenseDataLength              = CommandPacket.SenseDataLength;
 633   *DataLength                   = CommandPacket.InTransferLength;
 634
 635   return Status;
 636 }
 637
 638
 639 /**
 640   Execute Read Capacity SCSI 16 command on a specific SCSI target.
 641
 642   Executes the SCSI Read Capacity 16 command on the SCSI target specified by ScsiIo.
 643   If Timeout is zero, then this function waits indefinitely for the command to complete.
 644   If Timeout is greater than zero, then the command is executed and will timeout after
 645   Timeout 100 ns units.  The Pmi parameter is used to construct the CDB for this SCSI command.
 646   If ScsiIo is NULL, then ASSERT().
 647   If SenseDataLength is NULL, then ASSERT().
 648   If HostAdapterStatus is NULL, then ASSERT().
 649   If TargetStatus is NULL, then ASSERT().
 650   If DataLength is NULL, then ASSERT().
 651
 652   @param[in]      ScsiIo               A pointer to SCSI IO protocol.
 653   @param[in]      Timeout              The length of timeout period.
 654   @param[in, out] SenseData            A pointer to output sense data.
 655   @param[in, out] SenseDataLength      The length of output sense data.
 656   @param[out]     HostAdapterStatus    The status of Host Adapter.
 657   @param[out]     TargetStatus         The status of the target.
 658   @param[in, out] DataBuffer           A pointer to a data buffer.
 659   @param[in, out] DataLength           The length of data buffer.
 660   @param[in]      Pmi                  Partial medium indicator.
 661
 662   @retval  EFI_SUCCESS           Command is executed successfully.
 663   @retval  EFI_BAD_BUFFER_SIZE   The SCSI Request Packet was executed, but the entire
 664                                  DataBuffer could not be transferred. The actual
 665                                  number of bytes transferred is returned in DataLength.
 666   @retval  EFI_NOT_READY         The SCSI Request Packet could not be sent because
 667                                  there are too many SCSI Command Packets already queued.
 668   @retval  EFI_DEVICE_ERROR      A device error occurred while attempting to send SCSI Request Packet.
 669   @retval  EFI_UNSUPPORTED       The command described by the SCSI Request Packet
 670                                  is not supported by the SCSI initiator(i.e., SCSI  Host Controller)
 671   @retval  EFI_TIMEOUT           A timeout occurred while waiting for the SCSI Request Packet to execute.
 672
 673 **/
 674 EFI_STATUS
 675 EFIAPI
 676 ScsiReadCapacity16Command (
 677   IN     EFI_SCSI_IO_PROTOCOL  *ScsiIo,
 678   IN     UINT64                Timeout,
 679   IN OUT VOID                  *SenseData,  OPTIONAL
 680   IN OUT UINT8                 *SenseDataLength,
 681      OUT UINT8                 *HostAdapterStatus,
 682      OUT UINT8                 *TargetStatus,
 683   IN OUT VOID                  *DataBuffer, OPTIONAL
 684   IN OUT UINT32                *DataLength,
 685   IN     BOOLEAN               Pmi
 686   )
 687 {
 688   EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
 689   UINT64                          Lun;
 690   UINT8                           *Target;
 691   UINT8                           TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
 692   EFI_STATUS                      Status;
 693   UINT8                           Cdb[16];
 694
 695   ASSERT (SenseDataLength != NULL);
 696   ASSERT (HostAdapterStatus != NULL);
 697   ASSERT (TargetStatus != NULL);
 698   ASSERT (DataLength != NULL);
 699   ASSERT (ScsiIo != NULL);
 700
 701   ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
 702   ZeroMem (Cdb, 16);
 703
 704   CommandPacket.Timeout         = Timeout;
 705   CommandPacket.InDataBuffer    = DataBuffer;
 706   CommandPacket.SenseData       = SenseData;
 707   CommandPacket.InTransferLength= *DataLength;
 708   CommandPacket.Cdb             = Cdb;
 709   //
 710   // Fill Cdb for Read Capacity Command
 711   //
 712   Target = &TargetArray[0];
 713   ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
 714
 715   Cdb[0]  = EFI_SCSI_OP_READ_CAPACITY16;
 716   Cdb[1]  = 0x10;
 717   if (!Pmi) {
 718     //
 719     // Partial medium indicator,if Pmi is FALSE, the Cdb.2 ~ Cdb.9 MUST BE ZERO.
 720     //
 721     ZeroMem ((Cdb + 2), 8);
 722   } else {
 723     Cdb[14] |= 0x01;
 724   }
 725
 726   Cdb[13] = 0x20;
 727   CommandPacket.CdbLength       = 16;
 728   CommandPacket.DataDirection   = EFI_SCSI_DATA_IN;
 729   CommandPacket.SenseDataLength = *SenseDataLength;
 730
 731   Status                        = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
 732
 733   *HostAdapterStatus            = CommandPacket.HostAdapterStatus;
 734   *TargetStatus                 = CommandPacket.TargetStatus;
 735   *SenseDataLength              = CommandPacket.SenseDataLength;
 736   *DataLength                   = CommandPacket.InTransferLength;
 737
 738   return Status;
 739 }
 740
 741
 742 /**
 743   Execute Read(10) SCSI command on a specific SCSI target.
 744
 745   Executes the SCSI Read(10) command on the SCSI target specified by ScsiIo.
 746   If Timeout is zero, then this function waits indefinitely for the command to complete.
 747   If Timeout is greater than zero, then the command is executed and will timeout
 748   after Timeout 100 ns units.  The StartLba and SectorSize parameters are used to
 749   construct the CDB for this SCSI command.
 750   If ScsiIo is NULL, then ASSERT().
 751   If SenseDataLength is NULL, then ASSERT().
 752   If HostAdapterStatus is NULL, then ASSERT().
 753   If TargetStatus is NULL, then ASSERT().
 754   If DataLength is NULL, then ASSERT().
 755
 756
 757   @param[in]      ScsiIo               A pointer to SCSI IO protocol.
 758   @param[in]      Timeout              The length of timeout period.
 759   @param[in, out] SenseData            A pointer to output sense data.
 760   @param[in, out] SenseDataLength      The length of output sense data.
 761   @param[out]     HostAdapterStatus    The status of Host Adapter.
 762   @param[out]     TargetStatus         The status of the target.
 763   @param[in, out] DataBuffer           Read 10 command data.
 764   @param[in, out] DataLength           The length of data buffer.
 765   @param[in]      StartLba             The start address of LBA.
 766   @param[in]      SectorSize           The sector size.
 767
 768   @retval  EFI_SUCCESS          Command is executed successfully.
 769   @retval  EFI_BAD_BUFFER_SIZE  The SCSI Request Packet was executed, but the entire DataBuffer could
 770                                 not be transferred. The actual number of bytes transferred is returned in DataLength.
 771   @retval  EFI_NOT_READY        The SCSI Request Packet could not be sent because there are too many
 772                                 SCSI Command Packets already queued.
 773   @retval  EFI_DEVICE_ERROR     A device error occurred while attempting to send SCSI Request Packet.
 774   @retval  EFI_UNSUPPORTED      The command described by the SCSI Request Packet is not supported by
 775                                 the SCSI initiator(i.e., SCSI  Host Controller)
 776   @retval  EFI_TIMEOUT          A timeout occurred while waiting for the SCSI Request Packet to execute.
 777
 778 **/
 779 EFI_STATUS
 780 EFIAPI
 781 ScsiRead10Command (
 782   IN     EFI_SCSI_IO_PROTOCOL  *ScsiIo,
 783   IN     UINT64                Timeout,
 784   IN OUT VOID                  *SenseData,   OPTIONAL
 785   IN OUT UINT8                 *SenseDataLength,
 786      OUT UINT8                 *HostAdapterStatus,
 787      OUT UINT8                 *TargetStatus,
 788   IN OUT VOID                  *DataBuffer,  OPTIONAL
 789   IN OUT UINT32                *DataLength,
 790   IN     UINT32                StartLba,
 791   IN     UINT32                SectorSize
 792   )
 793 {
 794   EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
 795   UINT64                          Lun;
 796   UINT8                           *Target;
 797   UINT8                           TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
 798   EFI_STATUS                      Status;
 799   UINT8                           Cdb[EFI_SCSI_OP_LENGTH_TEN];
 800
 801   ASSERT (SenseDataLength != NULL);
 802   ASSERT (HostAdapterStatus != NULL);
 803   ASSERT (TargetStatus != NULL);
 804   ASSERT (DataLength != NULL);
 805   ASSERT (ScsiIo != NULL);
 806
 807   ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
 808   ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
 809
 810   CommandPacket.Timeout         = Timeout;
 811   CommandPacket.InDataBuffer    = DataBuffer;
 812   CommandPacket.SenseData       = SenseData;
 813   CommandPacket.InTransferLength= *DataLength;
 814   CommandPacket.Cdb             = Cdb;
 815   //
 816   // Fill Cdb for Read (10) Command
 817   //
 818   Target = &TargetArray[0];
 819   ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
 820
 821   Cdb[0]                        = EFI_SCSI_OP_READ10;
 822   Cdb[1]                        = (UINT8) (LShiftU64 (Lun, 5) & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
 823   Cdb[2]                        = (UINT8) (StartLba >> 24);
 824   Cdb[3]                        = (UINT8) (StartLba >> 16);
 825   Cdb[4]                        = (UINT8) (StartLba >> 8);
 826   Cdb[5]                        = (UINT8) (StartLba & 0xff);
 827   Cdb[7]                        = (UINT8) (SectorSize >> 8);
 828   Cdb[8]                        = (UINT8) (SectorSize & 0xff);
 829
 830   CommandPacket.CdbLength       = EFI_SCSI_OP_LENGTH_TEN;
 831   CommandPacket.DataDirection   = EFI_SCSI_DATA_IN;
 832   CommandPacket.SenseDataLength = *SenseDataLength;
 833
 834   Status                        = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
 835
 836   *HostAdapterStatus            = CommandPacket.HostAdapterStatus;
 837   *TargetStatus                 = CommandPacket.TargetStatus;
 838   *SenseDataLength              = CommandPacket.SenseDataLength;
 839   *DataLength                   = CommandPacket.InTransferLength;
 840
 841   return Status;
 842 }
 843
 844
 845 /**
 846   Execute Write(10) SCSI command on a specific SCSI target.
 847
 848   Executes the SCSI Write(10) command on the SCSI target specified by ScsiIo.
 849   If Timeout is zero, then this function waits indefinitely for the command to complete.
 850   If Timeout is greater than zero, then the command is executed and will timeout after
 851   Timeout 100 ns units.  The StartLba and SectorSize parameters are used to construct
 852   the CDB for this SCSI command.
 853   If ScsiIo is NULL, then ASSERT().
 854   If SenseDataLength is NULL, then ASSERT().
 855   If HostAdapterStatus is NULL, then ASSERT().
 856   If TargetStatus is NULL, then ASSERT().
 857   If DataLength is NULL, then ASSERT().
 858
 859   @param[in]      ScsiIo               SCSI IO Protocol to use
 860   @param[in]      Timeout              The length of timeout period.
 861   @param[in, out] SenseData            A pointer to output sense data.
 862   @param[in, out] SenseDataLength      The length of output sense data.
 863   @param[out]     HostAdapterStatus    The status of Host Adapter.
 864   @param[out]     TargetStatus         The status of the target.
 865   @param[in, out] DataBuffer           A pointer to a data buffer.
 866   @param[in, out] DataLength           The length of data buffer.
 867   @param[in]      StartLba             The start address of LBA.
 868   @param[in]      SectorSize           The sector size.
 869
 870   @retval  EFI_SUCCESS          Command is executed successfully.
 871   @retval  EFI_BAD_BUFFER_SIZE  The SCSI Request Packet was executed, but the entire DataBuffer could
 872                                 not be transferred. The actual number of bytes transferred is returned in DataLength.
 873   @retval  EFI_NOT_READY        The SCSI Request Packet could not be sent because there are too many
 874                                 SCSI Command Packets already queued.
 875   @retval  EFI_DEVICE_ERROR     A device error occurred while attempting to send SCSI Request Packet.
 876   @retval  EFI_UNSUPPORTED      The command described by the SCSI Request Packet is not supported by
 877                                 the SCSI initiator(i.e., SCSI  Host Controller)
 878   @retval  EFI_TIMEOUT          A timeout occurred while waiting for the SCSI Request Packet to execute.
 879
 880 **/
 881 EFI_STATUS
 882 EFIAPI
 883 ScsiWrite10Command (
 884   IN     EFI_SCSI_IO_PROTOCOL  *ScsiIo,
 885   IN     UINT64                Timeout,
 886   IN OUT VOID                  *SenseData,   OPTIONAL
 887   IN OUT UINT8                 *SenseDataLength,
 888      OUT UINT8                 *HostAdapterStatus,
 889      OUT UINT8                 *TargetStatus,
 890   IN OUT VOID                  *DataBuffer,  OPTIONAL
 891   IN OUT UINT32                *DataLength,
 892   IN     UINT32                StartLba,
 893   IN     UINT32                SectorSize
 894   )
 895 {
 896   EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
 897   UINT64                          Lun;
 898   UINT8                           *Target;
 899   UINT8                           TargetArray[EFI_SCSI_TARGET_MAX_BYTES];
 900   EFI_STATUS                      Status;
 901   UINT8                           Cdb[EFI_SCSI_OP_LENGTH_TEN];
 902
 903   ASSERT (SenseDataLength != NULL);
 904   ASSERT (HostAdapterStatus != NULL);
 905   ASSERT (TargetStatus != NULL);
 906   ASSERT (DataLength != NULL);
 907   ASSERT (ScsiIo != NULL);
 908
 909   ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
 910   ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
 911
 912   CommandPacket.Timeout         = Timeout;
 913   CommandPacket.OutDataBuffer    = DataBuffer;
 914   CommandPacket.SenseData       = SenseData;
 915   CommandPacket.OutTransferLength= *DataLength;
 916   CommandPacket.Cdb             = Cdb;
 917   //
 918   // Fill Cdb for Write (10) Command
 919   //
 920   Target = &TargetArray[0];
 921   ScsiIo->GetDeviceLocation (ScsiIo, &Target, &Lun);
 922
 923   Cdb[0]                        = EFI_SCSI_OP_WRITE10;
 924   Cdb[1]                        = (UINT8) (LShiftU64 (Lun, 5) & EFI_SCSI_LOGICAL_UNIT_NUMBER_MASK);
 925   Cdb[2]                        = (UINT8) (StartLba >> 24);
 926   Cdb[3]                        = (UINT8) (StartLba >> 16);
 927   Cdb[4]                        = (UINT8) (StartLba >> 8);
 928   Cdb[5]                        = (UINT8) StartLba;
 929   Cdb[7]                        = (UINT8) (SectorSize >> 8);
 930   Cdb[8]                        = (UINT8) SectorSize;
 931
 932   CommandPacket.CdbLength       = EFI_SCSI_OP_LENGTH_TEN;
 933   CommandPacket.DataDirection   = EFI_SCSI_DATA_OUT;
 934   CommandPacket.SenseDataLength = *SenseDataLength;
 935
 936   Status                        = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
 937
 938   *HostAdapterStatus            = CommandPacket.HostAdapterStatus;
 939   *TargetStatus                 = CommandPacket.TargetStatus;
 940   *SenseDataLength              = CommandPacket.SenseDataLength;
 941   *DataLength                   = CommandPacket.OutTransferLength;
 942
 943   return Status;
 944 }
 945