1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
3 *
4 * This file is provided under a dual BSD/GPLv2 license. When using or
5 * redistributing this file, you may do so under either license.
6 *
7 * GPL LICENSE SUMMARY
8 *
9 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
23 * The full GNU General Public License is included in this distribution
24 * in the file called LICENSE.GPL.
25 *
26 * BSD LICENSE
27 *
28 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
29 * All rights reserved.
30 *
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
33 * are met:
34 *
35 * * Redistributions of source code must retain the above copyright
36 * notice, this list of conditions and the following disclaimer.
37 * * Redistributions in binary form must reproduce the above copyright
38 * notice, this list of conditions and the following disclaimer in
39 * the documentation and/or other materials provided with the
40 * distribution.
41 *
42 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53 */
54
55 #include <sys/cdefs.h>
56 /**
57 * @file
58 * @brief This file contains the method implementations common to
59 * translations that move data (i.e. read, write). It has code for
60 * the various different size CDBs (6, 10, 12, 16).
61 */
62
63 #include <dev/isci/scil/sati_move.h>
64 #include <dev/isci/scil/sati_callbacks.h>
65 #include <dev/isci/scil/sati_translator_sequence.h>
66 #include <dev/isci/scil/sati_util.h>
67 #include <dev/isci/scil/intel_ata.h>
68 #include <dev/isci/scil/intel_scsi.h>
69 #include <dev/isci/scil/intel_sat.h>
70
71 //******************************************************************************
72 //* P R I V A T E M E T H O D S
73 //******************************************************************************
74
75 /**
76 * @brief This method simply sets the command register based upon the
77 * supplied opcodes and the data direction.
78 * For more information on the parameters passed to this method,
79 * please reference sati_translate_command()
80 *
81 * @param[in] write_opcode This parameter specifies the value to be written
82 * to the ATA command register for a write (data out) operation.
83 * @param[in] read_opcode This parameter specifies the value to be written
84 * to the ATA command register for a read (data in) operation.
85 *
86 * @return none.
87 */
88 static
sati_move_set_ata_command(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * ata_io,U8 write_opcode,U8 read_opcode)89 void sati_move_set_ata_command(
90 SATI_TRANSLATOR_SEQUENCE_T * sequence,
91 void * ata_io,
92 U8 write_opcode,
93 U8 read_opcode
94 )
95 {
96 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
97
98 if (sequence->data_direction == SATI_DATA_DIRECTION_OUT)
99 sati_set_ata_command(register_fis, write_opcode);
100 else
101 sati_set_ata_command(register_fis, read_opcode);
102 }
103
104 /**
105 * @brief This method will translate the SCSI transfer count from the 6-byte
106 * CDB into the appropriate amount in the ATA register FIS. Please
107 * note for 48-bit UDMA requests, the caller must set the sector
108 * count extended field. This method also sets protocol and
109 * command fields.
110 * For more information on the parameters passed to this method,
111 * please reference sati_translate_command()
112 *
113 * @param[in] write_opcode This parameter specifies the value to be written
114 * to the ATA command register for a write (data out) operation.
115 * @param[in] read_opcode This parameter specifies the value to be written
116 * to the ATA command register for a read (data in) operation.
117 *
118 * @return none
119 */
120 static
sati_move_small_udma_translate_command(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io,U8 write_opcode,U8 read_opcode)121 void sati_move_small_udma_translate_command(
122 SATI_TRANSLATOR_SEQUENCE_T * sequence,
123 void * scsi_io,
124 void * ata_io,
125 U8 write_opcode,
126 U8 read_opcode
127 )
128 {
129 U8 * cdb = sati_cb_get_cdb_address(scsi_io);
130 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
131
132 sati_move_set_ata_command(sequence, ata_io, write_opcode, read_opcode);
133 sati_set_ata_sector_count(register_fis, sati_get_cdb_byte(cdb, 4));
134
135 if (sequence->data_direction == SATI_DATA_DIRECTION_IN)
136 sequence->protocol = SAT_PROTOCOL_UDMA_DATA_IN;
137 else
138 sequence->protocol = SAT_PROTOCOL_UDMA_DATA_OUT;
139 }
140
141 /**
142 * @brief This method will translate the SCSI transfer count from the
143 * supplied sector_count parameter into the ATA register FIS.
144 * The translation is specific to 10,12, 16 byte CDBs.
145 * This method also sets protocol and command fields.
146 * For more information on the parameters passed to this method,
147 * please reference sati_translate_command()
148 *
149 * @param[in] sector_count This parameter specifies the number of sectors
150 * to be transferred.
151 * @param[in] write_opcode This parameter specifies the value to be written
152 * to the ATA command register for a write (data out) operation.
153 * @param[in] read_opcode This parameter specifies the value to be written
154 * to the ATA command register for a read (data in) operation.
155 *
156 * @return Please reference sati_move_set_sector_count() for information
157 * on return codes from this method.
158 */
159 static
sati_move_large_udma_translate_command(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io,U32 sector_count,U8 write_opcode,U8 read_opcode)160 SATI_STATUS sati_move_large_udma_translate_command(
161 SATI_TRANSLATOR_SEQUENCE_T * sequence,
162 void * scsi_io,
163 void * ata_io,
164 U32 sector_count,
165 U8 write_opcode,
166 U8 read_opcode
167 )
168 {
169 sati_move_set_ata_command(sequence, ata_io, write_opcode, read_opcode);
170
171 if (sequence->data_direction == SATI_DATA_DIRECTION_IN)
172 sequence->protocol = SAT_PROTOCOL_UDMA_DATA_IN;
173 else
174 sequence->protocol = SAT_PROTOCOL_UDMA_DATA_OUT;
175
176 return sati_move_set_sector_count(
177 sequence, scsi_io, ata_io, sector_count, FALSE
178 );
179 }
180
181 /**
182 * @brief This method will translate the SCSI transfer count from the 6-byte
183 * CDB into the appropriate amount in the ATA register FIS.
184 * This is only used for translation of 6-byte SCSI CDBs.
185 * For more information on the parameters passed to this method,
186 * please reference sati_translate_command()
187 *
188 * @return none
189 */
190 static
sati_move_ncq_translate_8_bit_sector_count(void * scsi_io,void * ata_io)191 void sati_move_ncq_translate_8_bit_sector_count(
192 void * scsi_io,
193 void * ata_io
194 )
195 {
196 U8 * cdb = sati_cb_get_cdb_address(scsi_io);
197 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
198
199 sati_set_ata_features(register_fis, sati_get_cdb_byte(cdb, 4));
200
201 // A read 6 with a 0 sector count indicates a transfer of 256 sectors.
202 // As a result update the MSB (features expanded register) to indicate
203 // 256 sectors (0x100).
204 if (sati_get_cdb_byte(cdb, 4) == 0)
205 sati_set_ata_features_exp(register_fis, 1);
206 }
207
208 //******************************************************************************
209 //* P U B L I C M E T H O D S
210 //******************************************************************************
211
212 /**
213 * @brief This method will process a 32-bit sector into the appropriate fields
214 * in a register FIS. This method works for both 8-bit and 16-bit sector
215 * counts.
216 * This is used for translation of 10, 12, and 16-byte SCSI CDBs.
217 * For more information on the parameters passed to this method,
218 * please reference sati_translate_command().
219 *
220 * @note This method should only be called for CDB sizes of 10-bytes or larger.
221 *
222 * @param[in] sector_count This parameter specifies the number of sectors
223 * to be transferred.
224 * @param[in] is_fpdma_command This parameter indicates if the supplied
225 * ata_io is a first party DMA request (NCQ).
226 *
227 * @return none
228 */
sati_move_set_sector_count(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io,U32 sector_count,U8 is_fpdma_command)229 SATI_STATUS sati_move_set_sector_count(
230 SATI_TRANSLATOR_SEQUENCE_T * sequence,
231 void * scsi_io,
232 void * ata_io,
233 U32 sector_count,
234 U8 is_fpdma_command
235 )
236 {
237 U32 max_sector_count;
238 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
239
240 if (sequence->device->capabilities & SATI_DEVICE_CAP_48BIT_ENABLE)
241 max_sector_count = 65536;
242 else
243 max_sector_count = 256;
244
245 // Check the CDB transfer length count and set the register FIS sector
246 // count fields
247 if (0 == sector_count)
248 {
249 // A SCSI sector count of 0 for 10-byte CDBs and larger indicate no data
250 // transfer, so simply complete the command immediately.
251 return SATI_COMPLETE;
252 }
253 else if (sector_count >= max_sector_count)
254 {
255 // We have to perform multiple SATA commands to satisfy the sector
256 // count specified in the SCSI command.
257 sequence->command_specific_data.move_sector_count =
258 sector_count - max_sector_count;
259
260 // In ATA a sector count of 0 indicates use the maximum allowed for
261 // the command (i.e. 0 == 2^16 or 2^8).
262 sector_count = 0;
263 }
264
265 if (is_fpdma_command)
266 {
267 sati_set_ata_features(register_fis, sector_count & 0xFF);
268 sati_set_ata_features_exp(register_fis, (sector_count >> 8) & 0xFF);
269 }
270 else
271 {
272 sati_set_ata_sector_count(register_fis, sector_count & 0xFF);
273 sati_set_ata_sector_count_exp(register_fis, (sector_count >> 8) & 0xFF);
274 }
275
276 return SATI_SUCCESS;
277 }
278
279 /**
280 * @brief This method simply translates the 32-bit logical block address
281 * field from the SCSI CDB (10 or 12-byte) into the ATA task
282 * file (register FIS).
283 * For more information on the parameters passed to this method,
284 * please reference sati_translate_command()
285 *
286 * @return none
287 */
sati_move_translate_32_bit_lba(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io)288 void sati_move_translate_32_bit_lba(
289 SATI_TRANSLATOR_SEQUENCE_T * sequence,
290 void * scsi_io,
291 void * ata_io
292 )
293 {
294 U8 * cdb = sati_cb_get_cdb_address(scsi_io);
295 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
296
297 sati_set_ata_lba_low(register_fis, sati_get_cdb_byte(cdb, 5));
298 sati_set_ata_lba_mid(register_fis, sati_get_cdb_byte(cdb, 4));
299 sati_set_ata_lba_high(register_fis, sati_get_cdb_byte(cdb, 3));
300 sati_set_ata_lba_low_exp(register_fis, sati_get_cdb_byte(cdb, 2));
301 sati_set_ata_lba_mid_exp(register_fis, 0);
302 sati_set_ata_lba_high_exp(register_fis, 0);
303 }
304
305 /**
306 * @brief This method simply translates the 64-bit logical block address
307 * field from the SCSI CDB (16 byte) into the ATA task
308 * file (register FIS). The 2 most significant bytes must be 0,
309 * since ATA devices can, at most, support 48-bits of LBA.
310 * For more information on the parameters passed to this method,
311 * please reference sati_translate_command()
312 *
313 * @return Indicate if the LBA translation succeeded.
314 * @return SATI_SUCCESS This is returned if translation was successful.
315 * @return SATI_FAILURE_CHECK_RESPONSE_DATA This is returned if either
316 * of the 2 most significant bytes contain a non-zero value.
317 */
sati_move_translate_64_bit_lba(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io)318 SATI_STATUS sati_move_translate_64_bit_lba(
319 SATI_TRANSLATOR_SEQUENCE_T * sequence,
320 void * scsi_io,
321 void * ata_io
322 )
323 {
324 U8 * cdb = sati_cb_get_cdb_address(scsi_io);
325 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
326
327 // Ensure we receive a logical block address that is within range of
328 // addressibility per the ATA specification (i.e. 48-bit or 28-bit).
329 if ( (sati_get_cdb_byte(cdb, 2) == 0) && (sati_get_cdb_byte(cdb, 3) == 0) )
330 {
331 sati_set_ata_lba_low(register_fis, sati_get_cdb_byte(cdb, 9));
332 sati_set_ata_lba_mid(register_fis, sati_get_cdb_byte(cdb, 8));
333 sati_set_ata_lba_high(register_fis, sati_get_cdb_byte(cdb, 7));
334 sati_set_ata_lba_low_exp(register_fis, sati_get_cdb_byte(cdb, 6));
335 sati_set_ata_lba_mid_exp(register_fis, sati_get_cdb_byte(cdb, 5));
336 sati_set_ata_lba_high_exp(register_fis, sati_get_cdb_byte(cdb, 4));
337 return SATI_SUCCESS;
338 }
339 else
340 {
341 sati_scsi_sense_data_construct(
342 sequence,
343 scsi_io,
344 SCSI_STATUS_CHECK_CONDITION,
345 SCSI_SENSE_ILLEGAL_REQUEST,
346 SCSI_ASC_LBA_OUT_OF_RANGE,
347 SCSI_ASCQ_LBA_OUT_OF_RANGE
348 );
349 return SATI_FAILURE_CHECK_RESPONSE_DATA;
350 }
351 }
352
353 /**
354 * @brief This method will translate the pieces common to SCSI read and
355 * write 6 byte commands. Depending upon the capabilities
356 * supported by the target different ATA commands can be selected.
357 * For more information on the parameters passed to this method,
358 * please reference sati_translate_command().
359 *
360 * @return Indicate if the command translation succeeded.
361 * @retval SCI_SUCCESS This is returned if the command translation was
362 * successful.
363 */
sati_move_6_translate_command(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io)364 SATI_STATUS sati_move_6_translate_command(
365 SATI_TRANSLATOR_SEQUENCE_T * sequence,
366 void * scsi_io,
367 void * ata_io
368 )
369 {
370 U8 * cdb = sati_cb_get_cdb_address(scsi_io);
371 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
372
373 // Translate the logical block address information from the SCSI CDB.
374 // There is only 5 bits of MSB located in byte 1 of the CDB.
375 sati_set_ata_lba_low(register_fis, sati_get_cdb_byte(cdb, 3));
376 sati_set_ata_lba_mid(register_fis, sati_get_cdb_byte(cdb, 2));
377 sati_set_ata_lba_high(register_fis, sati_get_cdb_byte(cdb, 1) & 0x1F);
378
379 sati_move_translate_command(sequence, scsi_io, ata_io, 0);
380
381 return SATI_SUCCESS;
382 }
383
384 /**
385 * @brief This method will translate the pieces common to SCSI read and
386 * write 10/12 byte commands. Depending upon the capabilities
387 * supported by the target different ATA commands can be selected.
388 * For more information on the parameters passed to this method,
389 * please reference sati_translate_command().
390 *
391 * @param[in] device_head This parameter specifies the contents to be
392 * written to the device head register.
393 *
394 * @return Indicate if the command translation succeeded.
395 * @retval SCI_SUCCESS This is returned if the command translation was
396 * successful.
397 */
sati_move_32_bit_lba_translate_command(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io,U8 device_head)398 SATI_STATUS sati_move_32_bit_lba_translate_command(
399 SATI_TRANSLATOR_SEQUENCE_T * sequence,
400 void * scsi_io,
401 void * ata_io,
402 U8 device_head
403 )
404 {
405 sati_move_translate_32_bit_lba(sequence, scsi_io, ata_io);
406 sati_move_translate_command(sequence, scsi_io, ata_io, device_head);
407
408 return SATI_SUCCESS;
409 }
410
411 /**
412 * @brief This method provides the common translation functionality for
413 * the 6-byte move command descriptor blocks (CDBs).
414 * This method will ensure that the following is performed:
415 * - command register is set
416 * - the SATI_TRANSLATOR_SEQUENCE::protocol field is set
417 * - the sector count field(s) are set
418 * - sati_move_6_translate_command() is invoked.
419 * For more information on the parameters passed to this method,
420 * please reference sati_translate_command().
421 *
422 * @pre The caller must ensure that the
423 * SATI_TRANSLATOR_SEQUENCE::data_direction field has already been set.
424 *
425 * @return Indicate if the command translation succeeded.
426 * @see sati_move_6_translate_command() for additional return codes.
427 */
sati_move_small_translate_command(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io)428 SATI_STATUS sati_move_small_translate_command(
429 SATI_TRANSLATOR_SEQUENCE_T * sequence,
430 void * scsi_io,
431 void * ata_io
432 )
433 {
434 // Translation of the sector count is performed differently for NCQ vs.
435 // other protocols.
436 if (sequence->device->capabilities & SATI_DEVICE_CAP_NCQ_SUPPORTED_ENABLE)
437 {
438 sati_move_set_ata_command(
439 sequence, ata_io, ATA_WRITE_FPDMA, ATA_READ_FPDMA
440 );
441 sati_move_ncq_translate_8_bit_sector_count(scsi_io, ata_io);
442 sequence->protocol = SAT_PROTOCOL_FPDMA;
443 }
444 else if (sequence->device->capabilities & SATI_DEVICE_CAP_48BIT_ENABLE)
445 {
446 U8 * cdb = sati_cb_get_cdb_address(scsi_io);
447
448 sati_move_small_udma_translate_command(
449 sequence, scsi_io, ata_io, ATA_WRITE_DMA_EXT, ATA_READ_DMA_EXT
450 );
451
452 // A read/write 6 with a 0 sector count indicates a transfer of 256
453 // sectors. As a result update the MSB (features expanded register)
454 // to indicate 256 sectors (0x100).
455 if (sati_get_cdb_byte(cdb, 4) == 0)
456 {
457 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
458 sati_set_ata_sector_count_exp(register_fis, 1);
459 }
460 }
461 else if (sequence->device->capabilities & SATI_DEVICE_CAP_UDMA_ENABLE)
462 {
463 sati_move_small_udma_translate_command(
464 sequence, scsi_io, ata_io, ATA_WRITE_DMA, ATA_READ_DMA
465 );
466 }
467 else
468 {
469 /**
470 * Currently the translation does not support devices incapable of
471 * handling the 48-bit feature set (i.e. 16 bits of sector count).
472 */
473 sati_scsi_sense_data_construct(
474 sequence,
475 scsi_io,
476 SCSI_STATUS_CHECK_CONDITION,
477 SCSI_SENSE_ILLEGAL_REQUEST,
478 SCSI_ASC_INVALID_FIELD_IN_CDB,
479 SCSI_ASCQ_INVALID_FIELD_IN_CDB
480 );
481 return SATI_FAILURE_CHECK_RESPONSE_DATA;
482 }
483
484 return sati_move_6_translate_command(sequence, scsi_io, ata_io);
485 }
486
487 /**
488 * @brief This method provides the common translation functionality for
489 * the larger command descriptor blocks (10, 12, 16-byte CDBs).
490 * For more information on the parameters passed to this method,
491 * please reference sati_translate_command().
492 *
493 * @param[in] sector_count This parameter specifies the number of sectors
494 * to be transferred.
495 * @param[in] device_head This parameter specifies the contents to be
496 * written to the device head register.
497 *
498 * @return Indicate if the command translation succeeded.
499 * @retval SATI_FAILURE This value is returned if neither NCQ or DMA is
500 * supported by the target device.
501 * @see sati_move_set_sector_count() for additional return codes.
502 */
sati_move_large_translate_command(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io,U32 sector_count,U8 * ata_device_head)503 SATI_STATUS sati_move_large_translate_command(
504 SATI_TRANSLATOR_SEQUENCE_T * sequence,
505 void * scsi_io,
506 void * ata_io,
507 U32 sector_count,
508 U8 * ata_device_head
509 )
510 {
511 SATI_STATUS status = SATI_SUCCESS;
512 U8 * cdb = sati_cb_get_cdb_address(scsi_io);
513
514 // Parts of translation (e.g. sector count) is performed differently
515 // for NCQ vs. other protocols.
516 if (sequence->device->capabilities & SATI_DEVICE_CAP_NCQ_SUPPORTED_ENABLE)
517 {
518 // if the user did not request to ignore FUA
519 if((sequence->device->capabilities & SATI_DEVICE_CAP_IGNORE_FUA)==0)
520 {
521 // Is the Force Unit Access bit set?
522 if (sati_get_cdb_byte(cdb, 1) & SCSI_MOVE_FUA_BIT_ENABLE)
523 *ata_device_head = ATA_DEV_HEAD_REG_FUA_ENABLE;
524 }
525
526 sati_move_set_ata_command(
527 sequence, ata_io, ATA_WRITE_FPDMA, ATA_READ_FPDMA
528 );
529 status = sati_move_set_sector_count(
530 sequence, scsi_io, ata_io, sector_count, TRUE
531 );
532 sequence->protocol = SAT_PROTOCOL_FPDMA;
533 }
534 else if (sequence->device->capabilities & SATI_DEVICE_CAP_48BIT_ENABLE)
535 {
536 // Is the Force Unit Access bit set? If it is, then error. We
537 // aren't supporting this yet for normal DMA.
538 if (sati_get_cdb_byte(cdb, 1) & SCSI_MOVE_FUA_BIT_ENABLE)
539 {
540 sati_scsi_sense_data_construct(
541 sequence,
542 scsi_io,
543 SCSI_STATUS_CHECK_CONDITION,
544 SCSI_SENSE_ILLEGAL_REQUEST,
545 SCSI_ASC_INVALID_FIELD_IN_CDB,
546 SCSI_ASCQ_INVALID_FIELD_IN_CDB
547 );
548 return SATI_FAILURE_CHECK_RESPONSE_DATA;
549 }
550
551 status = sati_move_large_udma_translate_command(
552 sequence,
553 scsi_io,
554 ata_io,
555 sector_count,
556 ATA_WRITE_DMA_EXT,
557 ATA_READ_DMA_EXT
558 );
559 }
560 else if (sequence->device->capabilities & SATI_DEVICE_CAP_UDMA_ENABLE)
561 {
562 status = sati_move_large_udma_translate_command(
563 sequence,
564 scsi_io,
565 ata_io,
566 sector_count,
567 ATA_WRITE_DMA,
568 ATA_READ_DMA
569 );
570 }
571 else
572 {
573 /**
574 * Currently the translation does not support devices incapable of
575 * handling the 48-bit feature set (i.e. 16 bits of sector count).
576 */
577 sati_scsi_sense_data_construct(
578 sequence,
579 scsi_io,
580 SCSI_STATUS_CHECK_CONDITION,
581 SCSI_SENSE_ILLEGAL_REQUEST,
582 SCSI_ASC_INVALID_FIELD_IN_CDB,
583 SCSI_ASCQ_INVALID_FIELD_IN_CDB
584 );
585 return SATI_FAILURE_CHECK_RESPONSE_DATA;
586 }
587
588 return status;
589 }
590
591 /**
592 * @brief This method simply performs the functionality common to all
593 * payload data movement translations (i.e. READ/WRITE).
594 * For more information on the parameters passed to this method,
595 * please reference sati_translate_command().
596 *
597 * @param[in] device_head This parameter specifies the current contents
598 * to be written to the ATA task file (register FIS) device
599 * head register.
600 *
601 * @return none
602 */
sati_move_translate_command(SATI_TRANSLATOR_SEQUENCE_T * sequence,void * scsi_io,void * ata_io,U8 device_head)603 void sati_move_translate_command(
604 SATI_TRANSLATOR_SEQUENCE_T * sequence,
605 void * scsi_io,
606 void * ata_io,
607 U8 device_head
608 )
609 {
610 U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
611
612 sati_set_ata_device_head(
613 register_fis, device_head | ATA_DEV_HEAD_REG_LBA_MODE_ENABLE
614 );
615 }
616
617