2 * Support for SATA devices on Serial Attached SCSI (SAS) controllers
4 * Copyright (C) 2006 IBM Corporation
6 * Written by: Darrick J. Wong <djwong@us.ibm.com>, IBM Corporation
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of the
11 * License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 #include <linux/scatterlist.h>
25 #include <linux/slab.h>
27 #include <scsi/sas_ata.h>
28 #include "sas_internal.h"
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_tcq.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_transport.h>
34 #include <scsi/scsi_transport_sas.h>
35 #include "../scsi_sas_internal.h"
36 #include "../scsi_transport_api.h"
37 #include <scsi/scsi_eh.h>
39 static enum ata_completion_errors
sas_to_ata_err(struct task_status_struct
*ts
)
41 /* Cheesy attempt to translate SAS errors into ATA. Hah! */
44 if (ts
->resp
== SAS_TASK_UNDELIVERED
)
45 return AC_ERR_ATA_BUS
;
47 /* ts->resp == SAS_TASK_COMPLETE */
48 /* task delivered, what happened afterwards? */
50 case SAS_DEV_NO_RESPONSE
:
51 return AC_ERR_TIMEOUT
;
56 return AC_ERR_ATA_BUS
;
59 case SAS_DATA_UNDERRUN
:
61 * Some programs that use the taskfile interface
62 * (smartctl in particular) can cause underrun
63 * problems. Ignore these errors, perhaps at our
68 case SAS_DATA_OVERRUN
:
70 case SAS_DEVICE_UNKNOWN
:
72 return AC_ERR_INVALID
;
74 case SAM_STAT_CHECK_CONDITION
:
77 SAS_DPRINTK("%s: Saw error %d. What to do?\n",
81 case SAS_ABORTED_TASK
:
84 case SAS_PROTO_RESPONSE
:
85 /* This means the ending_fis has the error
86 * value; return 0 here to collect it */
93 static void sas_ata_task_done(struct sas_task
*task
)
95 struct ata_queued_cmd
*qc
= task
->uldd_task
;
96 struct domain_device
*dev
;
97 struct task_status_struct
*stat
= &task
->task_status
;
98 struct ata_task_resp
*resp
= (struct ata_task_resp
*)stat
->buf
;
99 struct sas_ha_struct
*sas_ha
;
100 enum ata_completion_errors ac
;
104 goto qc_already_gone
;
106 dev
= qc
->ap
->private_data
;
107 sas_ha
= dev
->port
->ha
;
109 spin_lock_irqsave(dev
->sata_dev
.ap
->lock
, flags
);
110 if (stat
->stat
== SAS_PROTO_RESPONSE
|| stat
->stat
== SAM_STAT_GOOD
) {
111 ata_tf_from_fis(resp
->ending_fis
, &dev
->sata_dev
.tf
);
112 qc
->err_mask
|= ac_err_mask(dev
->sata_dev
.tf
.command
);
113 dev
->sata_dev
.sstatus
= resp
->sstatus
;
114 dev
->sata_dev
.serror
= resp
->serror
;
115 dev
->sata_dev
.scontrol
= resp
->scontrol
;
116 } else if (stat
->stat
!= SAM_STAT_GOOD
) {
117 ac
= sas_to_ata_err(stat
);
119 SAS_DPRINTK("%s: SAS error %x\n", __func__
,
121 /* We saw a SAS error. Send a vague error. */
123 dev
->sata_dev
.tf
.feature
= 0x04; /* status err */
124 dev
->sata_dev
.tf
.command
= ATA_ERR
;
128 qc
->lldd_task
= NULL
;
130 ASSIGN_SAS_TASK(qc
->scsicmd
, NULL
);
132 spin_unlock_irqrestore(dev
->sata_dev
.ap
->lock
, flags
);
135 * If the sas_task has an ata qc, a scsi_cmnd and the aborted
136 * flag is set, then we must have come in via the libsas EH
137 * functions. When we exit this function, we need to put the
138 * scsi_cmnd on the list of finished errors. The ata_qc_complete
139 * call cleans up the libata side of things but we're protected
140 * from the scsi_cmnd going away because the scsi_cmnd is owned
141 * by the EH, making libata's call to scsi_done a NOP.
143 spin_lock_irqsave(&task
->task_state_lock
, flags
);
144 if (qc
->scsicmd
&& task
->task_state_flags
& SAS_TASK_STATE_ABORTED
)
145 scsi_eh_finish_cmd(qc
->scsicmd
, &sas_ha
->eh_done_q
);
146 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
149 list_del_init(&task
->list
);
153 static unsigned int sas_ata_qc_issue(struct ata_queued_cmd
*qc
)
156 struct sas_task
*task
;
157 struct domain_device
*dev
= qc
->ap
->private_data
;
158 struct sas_ha_struct
*sas_ha
= dev
->port
->ha
;
159 struct Scsi_Host
*host
= sas_ha
->core
.shost
;
160 struct sas_internal
*i
= to_sas_internal(host
->transportt
);
161 struct scatterlist
*sg
;
162 unsigned int xfer
= 0;
165 /* If the device fell off, no sense in issuing commands */
167 return AC_ERR_SYSTEM
;
169 task
= sas_alloc_task(GFP_ATOMIC
);
171 return AC_ERR_SYSTEM
;
173 task
->task_proto
= SAS_PROTOCOL_STP
;
174 task
->task_done
= sas_ata_task_done
;
176 if (qc
->tf
.command
== ATA_CMD_FPDMA_WRITE
||
177 qc
->tf
.command
== ATA_CMD_FPDMA_READ
) {
178 /* Need to zero out the tag libata assigned us */
182 ata_tf_to_fis(&qc
->tf
, 1, 0, (u8
*)&task
->ata_task
.fis
);
183 task
->uldd_task
= qc
;
184 if (ata_is_atapi(qc
->tf
.protocol
)) {
185 memcpy(task
->ata_task
.atapi_packet
, qc
->cdb
, qc
->dev
->cdb_len
);
186 task
->total_xfer_len
= qc
->nbytes
;
187 task
->num_scatter
= qc
->n_elem
;
189 for_each_sg(qc
->sg
, sg
, qc
->n_elem
, si
)
192 task
->total_xfer_len
= xfer
;
193 task
->num_scatter
= si
;
196 task
->data_dir
= qc
->dma_dir
;
197 task
->scatter
= qc
->sg
;
198 task
->ata_task
.retry_count
= 1;
199 task
->task_state_flags
= SAS_TASK_STATE_PENDING
;
200 qc
->lldd_task
= task
;
202 switch (qc
->tf
.protocol
) {
204 task
->ata_task
.use_ncq
= 1;
208 task
->ata_task
.dma_xfer
= 1;
213 ASSIGN_SAS_TASK(qc
->scsicmd
, task
);
215 if (sas_ha
->lldd_max_execute_num
< 2)
216 res
= i
->dft
->lldd_execute_task(task
, 1, GFP_ATOMIC
);
218 res
= sas_queue_up(task
);
222 SAS_DPRINTK("lldd_execute_task returned: %d\n", res
);
225 ASSIGN_SAS_TASK(qc
->scsicmd
, NULL
);
227 return AC_ERR_SYSTEM
;
233 static bool sas_ata_qc_fill_rtf(struct ata_queued_cmd
*qc
)
235 struct domain_device
*dev
= qc
->ap
->private_data
;
237 memcpy(&qc
->result_tf
, &dev
->sata_dev
.tf
, sizeof(qc
->result_tf
));
241 static void sas_ata_phy_reset(struct ata_port
*ap
)
243 struct domain_device
*dev
= ap
->private_data
;
244 struct sas_internal
*i
=
245 to_sas_internal(dev
->port
->ha
->core
.shost
->transportt
);
246 int res
= TMF_RESP_FUNC_FAILED
;
248 if (i
->dft
->lldd_I_T_nexus_reset
)
249 res
= i
->dft
->lldd_I_T_nexus_reset(dev
);
251 if (res
!= TMF_RESP_FUNC_COMPLETE
)
252 SAS_DPRINTK("%s: Unable to reset I T nexus?\n", __func__
);
254 switch (dev
->sata_dev
.command_set
) {
255 case ATA_COMMAND_SET
:
256 SAS_DPRINTK("%s: Found ATA device.\n", __func__
);
257 ap
->link
.device
[0].class = ATA_DEV_ATA
;
259 case ATAPI_COMMAND_SET
:
260 SAS_DPRINTK("%s: Found ATAPI device.\n", __func__
);
261 ap
->link
.device
[0].class = ATA_DEV_ATAPI
;
264 SAS_DPRINTK("%s: Unknown SATA command set: %d.\n",
266 dev
->sata_dev
.command_set
);
267 ap
->link
.device
[0].class = ATA_DEV_UNKNOWN
;
271 ap
->cbl
= ATA_CBL_SATA
;
274 static void sas_ata_post_internal(struct ata_queued_cmd
*qc
)
276 if (qc
->flags
& ATA_QCFLAG_FAILED
)
277 qc
->err_mask
|= AC_ERR_OTHER
;
281 * Find the sas_task and kill it. By this point,
282 * libata has decided to kill the qc, so we needn't
283 * bother with sas_ata_task_done. But we still
284 * ought to abort the task.
286 struct sas_task
*task
= qc
->lldd_task
;
289 qc
->lldd_task
= NULL
;
291 /* Should this be a AT(API) device reset? */
292 spin_lock_irqsave(&task
->task_state_lock
, flags
);
293 task
->task_state_flags
|= SAS_TASK_NEED_DEV_RESET
;
294 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
296 task
->uldd_task
= NULL
;
297 __sas_task_abort(task
);
302 static int sas_ata_scr_write(struct ata_link
*link
, unsigned int sc_reg_in
,
305 struct domain_device
*dev
= link
->ap
->private_data
;
307 SAS_DPRINTK("STUB %s\n", __func__
);
310 dev
->sata_dev
.sstatus
= val
;
313 dev
->sata_dev
.scontrol
= val
;
316 dev
->sata_dev
.serror
= val
;
319 dev
->sata_dev
.ap
->link
.sactive
= val
;
327 static int sas_ata_scr_read(struct ata_link
*link
, unsigned int sc_reg_in
,
330 struct domain_device
*dev
= link
->ap
->private_data
;
332 SAS_DPRINTK("STUB %s\n", __func__
);
335 *val
= dev
->sata_dev
.sstatus
;
338 *val
= dev
->sata_dev
.scontrol
;
341 *val
= dev
->sata_dev
.serror
;
344 *val
= dev
->sata_dev
.ap
->link
.sactive
;
351 static struct ata_port_operations sas_sata_ops
= {
352 .phy_reset
= sas_ata_phy_reset
,
353 .post_internal_cmd
= sas_ata_post_internal
,
354 .qc_defer
= ata_std_qc_defer
,
355 .qc_prep
= ata_noop_qc_prep
,
356 .qc_issue
= sas_ata_qc_issue
,
357 .qc_fill_rtf
= sas_ata_qc_fill_rtf
,
358 .port_start
= ata_sas_port_start
,
359 .port_stop
= ata_sas_port_stop
,
360 .scr_read
= sas_ata_scr_read
,
361 .scr_write
= sas_ata_scr_write
364 static struct ata_port_info sata_port_info
= {
365 .flags
= ATA_FLAG_SATA
| ATA_FLAG_NO_LEGACY
| ATA_FLAG_SATA_RESET
|
366 ATA_FLAG_MMIO
| ATA_FLAG_PIO_DMA
| ATA_FLAG_NCQ
,
367 .pio_mask
= 0x1f, /* PIO0-4 */
368 .mwdma_mask
= 0x07, /* MWDMA0-2 */
369 .udma_mask
= ATA_UDMA6
,
370 .port_ops
= &sas_sata_ops
373 int sas_ata_init_host_and_port(struct domain_device
*found_dev
,
374 struct scsi_target
*starget
)
376 struct Scsi_Host
*shost
= dev_to_shost(&starget
->dev
);
377 struct sas_ha_struct
*ha
= SHOST_TO_SAS_HA(shost
);
380 ata_host_init(&found_dev
->sata_dev
.ata_host
,
382 sata_port_info
.flags
,
384 ap
= ata_sas_port_alloc(&found_dev
->sata_dev
.ata_host
,
388 SAS_DPRINTK("ata_sas_port_alloc failed.\n");
392 ap
->private_data
= found_dev
;
393 ap
->cbl
= ATA_CBL_SATA
;
394 ap
->scsi_host
= shost
;
395 found_dev
->sata_dev
.ap
= ap
;
400 void sas_ata_task_abort(struct sas_task
*task
)
402 struct ata_queued_cmd
*qc
= task
->uldd_task
;
403 struct completion
*waiting
;
405 /* Bounce SCSI-initiated commands to the SCSI EH */
407 struct request_queue
*q
= qc
->scsicmd
->device
->request_queue
;
410 spin_lock_irqsave(q
->queue_lock
, flags
);
411 blk_abort_request(qc
->scsicmd
->request
);
412 spin_unlock_irqrestore(q
->queue_lock
, flags
);
413 scsi_schedule_eh(qc
->scsicmd
->device
->host
);
417 /* Internal command, fake a timeout and complete. */
418 qc
->flags
&= ~ATA_QCFLAG_ACTIVE
;
419 qc
->flags
|= ATA_QCFLAG_FAILED
;
420 qc
->err_mask
|= AC_ERR_TIMEOUT
;
421 waiting
= qc
->private_data
;
425 static void sas_task_timedout(unsigned long _task
)
427 struct sas_task
*task
= (void *) _task
;
430 spin_lock_irqsave(&task
->task_state_lock
, flags
);
431 if (!(task
->task_state_flags
& SAS_TASK_STATE_DONE
))
432 task
->task_state_flags
|= SAS_TASK_STATE_ABORTED
;
433 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
435 complete(&task
->completion
);
438 static void sas_disc_task_done(struct sas_task
*task
)
440 if (!del_timer(&task
->timer
))
442 complete(&task
->completion
);
445 #define SAS_DEV_TIMEOUT 10
448 * sas_execute_task -- Basic task processing for discovery
449 * @task: the task to be executed
450 * @buffer: pointer to buffer to do I/O
451 * @size: size of @buffer
452 * @dma_dir: DMA direction. DMA_xxx
454 static int sas_execute_task(struct sas_task
*task
, void *buffer
, int size
,
455 enum dma_data_direction dma_dir
)
458 struct scatterlist
*scatter
= NULL
;
459 struct task_status_struct
*ts
= &task
->task_status
;
462 struct sas_internal
*i
=
463 to_sas_internal(task
->dev
->port
->ha
->core
.shost
->transportt
);
465 if (dma_dir
!= DMA_NONE
) {
466 scatter
= kzalloc(sizeof(*scatter
), GFP_KERNEL
);
470 sg_init_one(scatter
, buffer
, size
);
474 task
->task_proto
= task
->dev
->tproto
;
475 task
->scatter
= scatter
;
476 task
->num_scatter
= num_scatter
;
477 task
->total_xfer_len
= size
;
478 task
->data_dir
= dma_dir
;
479 task
->task_done
= sas_disc_task_done
;
480 if (dma_dir
!= DMA_NONE
&&
481 sas_protocol_ata(task
->task_proto
)) {
482 task
->num_scatter
= dma_map_sg(task
->dev
->port
->ha
->dev
,
488 for (retries
= 0; retries
< 5; retries
++) {
489 task
->task_state_flags
= SAS_TASK_STATE_PENDING
;
490 init_completion(&task
->completion
);
492 task
->timer
.data
= (unsigned long) task
;
493 task
->timer
.function
= sas_task_timedout
;
494 task
->timer
.expires
= jiffies
+ SAS_DEV_TIMEOUT
*HZ
;
495 add_timer(&task
->timer
);
497 res
= i
->dft
->lldd_execute_task(task
, 1, GFP_KERNEL
);
499 del_timer(&task
->timer
);
500 SAS_DPRINTK("executing SAS discovery task failed:%d\n",
504 wait_for_completion(&task
->completion
);
506 if (task
->task_state_flags
& SAS_TASK_STATE_ABORTED
) {
508 SAS_DPRINTK("task aborted, flags:0x%x\n",
509 task
->task_state_flags
);
510 res2
= i
->dft
->lldd_abort_task(task
);
511 SAS_DPRINTK("came back from abort task\n");
512 if (!(task
->task_state_flags
& SAS_TASK_STATE_DONE
)) {
513 if (res2
== TMF_RESP_FUNC_COMPLETE
)
514 continue; /* Retry the task */
519 if (task
->task_status
.stat
== SAM_STAT_BUSY
||
520 task
->task_status
.stat
== SAM_STAT_TASK_SET_FULL
||
521 task
->task_status
.stat
== SAS_QUEUE_FULL
) {
522 SAS_DPRINTK("task: q busy, sleeping...\n");
523 schedule_timeout_interruptible(HZ
);
524 } else if (task
->task_status
.stat
== SAM_STAT_CHECK_CONDITION
) {
525 struct scsi_sense_hdr shdr
;
527 if (!scsi_normalize_sense(ts
->buf
, ts
->buf_valid_size
,
529 SAS_DPRINTK("couldn't normalize sense\n");
532 if ((shdr
.sense_key
== 6 && shdr
.asc
== 0x29) ||
533 (shdr
.sense_key
== 2 && shdr
.asc
== 4 &&
535 SAS_DPRINTK("device %016llx LUN: %016llx "
536 "powering up or not ready yet, "
538 SAS_ADDR(task
->dev
->sas_addr
),
539 SAS_ADDR(task
->ssp_task
.LUN
));
541 schedule_timeout_interruptible(5*HZ
);
542 } else if (shdr
.sense_key
== 1) {
545 } else if (shdr
.sense_key
== 5) {
548 SAS_DPRINTK("dev %016llx LUN: %016llx "
549 "sense key:0x%x ASC:0x%x ASCQ:0x%x"
551 SAS_ADDR(task
->dev
->sas_addr
),
552 SAS_ADDR(task
->ssp_task
.LUN
),
554 shdr
.asc
, shdr
.ascq
);
556 } else if (task
->task_status
.resp
!= SAS_TASK_COMPLETE
||
557 task
->task_status
.stat
!= SAM_STAT_GOOD
) {
558 SAS_DPRINTK("task finished with resp:0x%x, "
560 task
->task_status
.resp
,
561 task
->task_status
.stat
);
569 if (dma_dir
!= DMA_NONE
) {
570 if (sas_protocol_ata(task
->task_proto
))
571 dma_unmap_sg(task
->dev
->port
->ha
->dev
,
572 task
->scatter
, task
->num_scatter
,
580 /* ---------- SATA ---------- */
582 static void sas_get_ata_command_set(struct domain_device
*dev
)
584 struct dev_to_host_fis
*fis
=
585 (struct dev_to_host_fis
*) dev
->frame_rcvd
;
587 if ((fis
->sector_count
== 1 && /* ATA */
593 (fis
->sector_count
== 0 && /* CE-ATA (mATA) */
597 (fis
->device
& ~0x10) == 0))
599 dev
->sata_dev
.command_set
= ATA_COMMAND_SET
;
601 else if ((fis
->interrupt_reason
== 1 && /* ATAPI */
603 fis
->byte_count_low
== 0x14 &&
604 fis
->byte_count_high
== 0xEB &&
605 (fis
->device
& ~0x10) == 0))
607 dev
->sata_dev
.command_set
= ATAPI_COMMAND_SET
;
609 else if ((fis
->sector_count
== 1 && /* SEMB */
615 (fis
->interrupt_reason
== 1 && /* SATA PM */
617 fis
->byte_count_low
== 0x69 &&
618 fis
->byte_count_high
== 0x96 &&
619 (fis
->device
& ~0x10) == 0))
621 /* Treat it as a superset? */
622 dev
->sata_dev
.command_set
= ATAPI_COMMAND_SET
;
626 * sas_issue_ata_cmd -- Basic SATA command processing for discovery
627 * @dev: the device to send the command to
628 * @command: the command register
629 * @features: the features register
630 * @buffer: pointer to buffer to do I/O
631 * @size: size of @buffer
632 * @dma_dir: DMA direction. DMA_xxx
634 static int sas_issue_ata_cmd(struct domain_device
*dev
, u8 command
,
635 u8 features
, void *buffer
, int size
,
636 enum dma_data_direction dma_dir
)
639 struct sas_task
*task
;
640 struct dev_to_host_fis
*d2h_fis
= (struct dev_to_host_fis
*)
644 task
= sas_alloc_task(GFP_KERNEL
);
650 task
->ata_task
.fis
.fis_type
= 0x27;
651 task
->ata_task
.fis
.command
= command
;
652 task
->ata_task
.fis
.features
= features
;
653 task
->ata_task
.fis
.device
= d2h_fis
->device
;
654 task
->ata_task
.retry_count
= 1;
656 res
= sas_execute_task(task
, buffer
, size
, dma_dir
);
663 #define ATA_IDENTIFY_DEV 0xEC
664 #define ATA_IDENTIFY_PACKET_DEV 0xA1
665 #define ATA_SET_FEATURES 0xEF
666 #define ATA_FEATURE_PUP_STBY_SPIN_UP 0x07
669 * sas_discover_sata_dev -- discover a STP/SATA device (SATA_DEV)
670 * @dev: STP/SATA device of interest (ATA/ATAPI)
672 * The LLDD has already been notified of this device, so that we can
673 * send FISes to it. Here we try to get IDENTIFY DEVICE or IDENTIFY
674 * PACKET DEVICE, if ATAPI device, so that the LLDD can fine-tune its
675 * performance for this device.
677 static int sas_discover_sata_dev(struct domain_device
*dev
)
683 identify_x
= kzalloc(512, GFP_KERNEL
);
687 if (dev
->sata_dev
.command_set
== ATA_COMMAND_SET
) {
688 dev
->sata_dev
.identify_device
= identify_x
;
689 command
= ATA_IDENTIFY_DEV
;
691 dev
->sata_dev
.identify_packet_device
= identify_x
;
692 command
= ATA_IDENTIFY_PACKET_DEV
;
695 res
= sas_issue_ata_cmd(dev
, command
, 0, identify_x
, 512,
700 /* lives on the media? */
701 if (le16_to_cpu(identify_x
[0]) & 4) {
702 /* incomplete response */
703 SAS_DPRINTK("sending SET FEATURE/PUP_STBY_SPIN_UP to "
704 "dev %llx\n", SAS_ADDR(dev
->sas_addr
));
705 if (!(identify_x
[83] & cpu_to_le16(1<<6)))
707 res
= sas_issue_ata_cmd(dev
, ATA_SET_FEATURES
,
708 ATA_FEATURE_PUP_STBY_SPIN_UP
,
713 schedule_timeout_interruptible(5*HZ
); /* More time? */
714 res
= sas_issue_ata_cmd(dev
, command
, 0, identify_x
, 512,
720 /* XXX Hint: register this SATA device with SATL.
721 When this returns, dev->sata_dev->lu is alive and
723 sas_satl_register_dev(dev);
726 sas_fill_in_rphy(dev
, dev
->rphy
);
730 dev
->sata_dev
.identify_packet_device
= NULL
;
731 dev
->sata_dev
.identify_device
= NULL
;
736 static int sas_discover_sata_pm(struct domain_device
*dev
)
742 * sas_discover_sata -- discover an STP/SATA domain device
743 * @dev: pointer to struct domain_device of interest
745 * First we notify the LLDD of this device, so we can send frames to
746 * it. Then depending on the type of device we call the appropriate
747 * discover functions. Once device discover is done, we notify the
748 * LLDD so that it can fine-tune its parameters for the device, by
749 * removing it and then adding it. That is, the second time around,
750 * the driver would have certain fields, that it is looking at, set.
751 * Finally we initialize the kobj so that the device can be added to
752 * the system at registration time. Devices directly attached to a HA
753 * port, have no parents. All other devices do, and should have their
754 * "parent" pointer set appropriately before calling this function.
756 int sas_discover_sata(struct domain_device
*dev
)
760 sas_get_ata_command_set(dev
);
762 res
= sas_notify_lldd_dev_found(dev
);
766 switch (dev
->dev_type
) {
768 res
= sas_discover_sata_dev(dev
);
771 res
= sas_discover_sata_pm(dev
);
776 sas_notify_lldd_dev_gone(dev
);
778 sas_notify_lldd_dev_found(dev
);
779 res
= sas_rphy_add(dev
->rphy
);