2 * Copyright (c) 2015 Linaro Ltd.
3 * Copyright (c) 2015 Hisilicon Limited.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
13 #define DRV_NAME "hisi_sas"
15 #define DEV_IS_GONE(dev) \
16 ((!dev) || (dev->dev_type == SAS_PHY_UNUSED))
18 static int hisi_sas_debug_issue_ssp_tmf(struct domain_device
*device
,
19 u8
*lun
, struct hisi_sas_tmf_task
*tmf
);
21 hisi_sas_internal_task_abort(struct hisi_hba
*hisi_hba
,
22 struct domain_device
*device
,
23 int abort_flag
, int tag
);
24 static int hisi_sas_softreset_ata_disk(struct domain_device
*device
);
26 u8
hisi_sas_get_ata_protocol(u8 cmd
, int direction
)
29 case ATA_CMD_FPDMA_WRITE
:
30 case ATA_CMD_FPDMA_READ
:
31 case ATA_CMD_FPDMA_RECV
:
32 case ATA_CMD_FPDMA_SEND
:
33 case ATA_CMD_NCQ_NON_DATA
:
34 return HISI_SAS_SATA_PROTOCOL_FPDMA
;
36 case ATA_CMD_DOWNLOAD_MICRO
:
38 case ATA_CMD_PMP_READ
:
39 case ATA_CMD_READ_LOG_EXT
:
40 case ATA_CMD_PIO_READ
:
41 case ATA_CMD_PIO_READ_EXT
:
42 case ATA_CMD_PMP_WRITE
:
43 case ATA_CMD_WRITE_LOG_EXT
:
44 case ATA_CMD_PIO_WRITE
:
45 case ATA_CMD_PIO_WRITE_EXT
:
46 return HISI_SAS_SATA_PROTOCOL_PIO
;
49 case ATA_CMD_DOWNLOAD_MICRO_DMA
:
50 case ATA_CMD_PMP_READ_DMA
:
51 case ATA_CMD_PMP_WRITE_DMA
:
53 case ATA_CMD_READ_EXT
:
54 case ATA_CMD_READ_LOG_DMA_EXT
:
55 case ATA_CMD_READ_STREAM_DMA_EXT
:
56 case ATA_CMD_TRUSTED_RCV_DMA
:
57 case ATA_CMD_TRUSTED_SND_DMA
:
59 case ATA_CMD_WRITE_EXT
:
60 case ATA_CMD_WRITE_FUA_EXT
:
61 case ATA_CMD_WRITE_QUEUED
:
62 case ATA_CMD_WRITE_LOG_DMA_EXT
:
63 case ATA_CMD_WRITE_STREAM_DMA_EXT
:
64 case ATA_CMD_ZAC_MGMT_IN
:
65 return HISI_SAS_SATA_PROTOCOL_DMA
;
67 case ATA_CMD_CHK_POWER
:
68 case ATA_CMD_DEV_RESET
:
71 case ATA_CMD_FLUSH_EXT
:
73 case ATA_CMD_VERIFY_EXT
:
74 case ATA_CMD_SET_FEATURES
:
76 case ATA_CMD_STANDBYNOW1
:
77 case ATA_CMD_ZAC_MGMT_OUT
:
78 return HISI_SAS_SATA_PROTOCOL_NONDATA
;
80 if (direction
== DMA_NONE
)
81 return HISI_SAS_SATA_PROTOCOL_NONDATA
;
82 return HISI_SAS_SATA_PROTOCOL_PIO
;
85 EXPORT_SYMBOL_GPL(hisi_sas_get_ata_protocol
);
87 void hisi_sas_sata_done(struct sas_task
*task
,
88 struct hisi_sas_slot
*slot
)
90 struct task_status_struct
*ts
= &task
->task_status
;
91 struct ata_task_resp
*resp
= (struct ata_task_resp
*)ts
->buf
;
92 struct hisi_sas_status_buffer
*status_buf
=
93 hisi_sas_status_buf_addr_mem(slot
);
94 u8
*iu
= &status_buf
->iu
[0];
95 struct dev_to_host_fis
*d2h
= (struct dev_to_host_fis
*)iu
;
97 resp
->frame_len
= sizeof(struct dev_to_host_fis
);
98 memcpy(&resp
->ending_fis
[0], d2h
, sizeof(struct dev_to_host_fis
));
100 ts
->buf_valid_size
= sizeof(*resp
);
102 EXPORT_SYMBOL_GPL(hisi_sas_sata_done
);
104 int hisi_sas_get_ncq_tag(struct sas_task
*task
, u32
*tag
)
106 struct ata_queued_cmd
*qc
= task
->uldd_task
;
109 if (qc
->tf
.command
== ATA_CMD_FPDMA_WRITE
||
110 qc
->tf
.command
== ATA_CMD_FPDMA_READ
) {
117 EXPORT_SYMBOL_GPL(hisi_sas_get_ncq_tag
);
119 static struct hisi_hba
*dev_to_hisi_hba(struct domain_device
*device
)
121 return device
->port
->ha
->lldd_ha
;
124 struct hisi_sas_port
*to_hisi_sas_port(struct asd_sas_port
*sas_port
)
126 return container_of(sas_port
, struct hisi_sas_port
, sas_port
);
128 EXPORT_SYMBOL_GPL(to_hisi_sas_port
);
130 void hisi_sas_stop_phys(struct hisi_hba
*hisi_hba
)
134 for (phy_no
= 0; phy_no
< hisi_hba
->n_phy
; phy_no
++)
135 hisi_hba
->hw
->phy_disable(hisi_hba
, phy_no
);
137 EXPORT_SYMBOL_GPL(hisi_sas_stop_phys
);
139 static void hisi_sas_slot_index_clear(struct hisi_hba
*hisi_hba
, int slot_idx
)
141 void *bitmap
= hisi_hba
->slot_index_tags
;
143 clear_bit(slot_idx
, bitmap
);
146 static void hisi_sas_slot_index_free(struct hisi_hba
*hisi_hba
, int slot_idx
)
148 hisi_sas_slot_index_clear(hisi_hba
, slot_idx
);
151 static void hisi_sas_slot_index_set(struct hisi_hba
*hisi_hba
, int slot_idx
)
153 void *bitmap
= hisi_hba
->slot_index_tags
;
155 set_bit(slot_idx
, bitmap
);
158 static int hisi_sas_slot_index_alloc(struct hisi_hba
*hisi_hba
, int *slot_idx
)
161 void *bitmap
= hisi_hba
->slot_index_tags
;
163 index
= find_first_zero_bit(bitmap
, hisi_hba
->slot_index_count
);
164 if (index
>= hisi_hba
->slot_index_count
)
165 return -SAS_QUEUE_FULL
;
166 hisi_sas_slot_index_set(hisi_hba
, index
);
171 static void hisi_sas_slot_index_init(struct hisi_hba
*hisi_hba
)
175 for (i
= 0; i
< hisi_hba
->slot_index_count
; ++i
)
176 hisi_sas_slot_index_clear(hisi_hba
, i
);
179 void hisi_sas_slot_task_free(struct hisi_hba
*hisi_hba
, struct sas_task
*task
,
180 struct hisi_sas_slot
*slot
)
184 struct device
*dev
= hisi_hba
->dev
;
185 struct domain_device
*device
= task
->dev
;
186 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
188 if (!sas_protocol_ata(task
->task_proto
))
190 dma_unmap_sg(dev
, task
->scatter
, slot
->n_elem
,
193 task
->lldd_task
= NULL
;
196 atomic64_dec(&sas_dev
->running_req
);
200 dma_pool_free(hisi_hba
->buffer_pool
, slot
->buf
, slot
->buf_dma
);
203 list_del_init(&slot
->entry
);
206 hisi_sas_slot_index_free(hisi_hba
, slot
->idx
);
208 /* slot memory is fully zeroed when it is reused */
210 EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free
);
212 static int hisi_sas_task_prep_smp(struct hisi_hba
*hisi_hba
,
213 struct hisi_sas_slot
*slot
)
215 return hisi_hba
->hw
->prep_smp(hisi_hba
, slot
);
218 static int hisi_sas_task_prep_ssp(struct hisi_hba
*hisi_hba
,
219 struct hisi_sas_slot
*slot
, int is_tmf
,
220 struct hisi_sas_tmf_task
*tmf
)
222 return hisi_hba
->hw
->prep_ssp(hisi_hba
, slot
, is_tmf
, tmf
);
225 static int hisi_sas_task_prep_ata(struct hisi_hba
*hisi_hba
,
226 struct hisi_sas_slot
*slot
)
228 return hisi_hba
->hw
->prep_stp(hisi_hba
, slot
);
231 static int hisi_sas_task_prep_abort(struct hisi_hba
*hisi_hba
,
232 struct hisi_sas_slot
*slot
,
233 int device_id
, int abort_flag
, int tag_to_abort
)
235 return hisi_hba
->hw
->prep_abort(hisi_hba
, slot
,
236 device_id
, abort_flag
, tag_to_abort
);
240 * This function will issue an abort TMF regardless of whether the
241 * task is in the sdev or not. Then it will do the task complete
242 * cleanup and callbacks.
244 static void hisi_sas_slot_abort(struct work_struct
*work
)
246 struct hisi_sas_slot
*abort_slot
=
247 container_of(work
, struct hisi_sas_slot
, abort_slot
);
248 struct sas_task
*task
= abort_slot
->task
;
249 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(task
->dev
);
250 struct scsi_cmnd
*cmnd
= task
->uldd_task
;
251 struct hisi_sas_tmf_task tmf_task
;
253 struct device
*dev
= hisi_hba
->dev
;
254 int tag
= abort_slot
->idx
;
257 if (!(task
->task_proto
& SAS_PROTOCOL_SSP
)) {
258 dev_err(dev
, "cannot abort slot for non-ssp task\n");
262 int_to_scsilun(cmnd
->device
->lun
, &lun
);
263 tmf_task
.tmf
= TMF_ABORT_TASK
;
264 tmf_task
.tag_of_task_to_be_managed
= cpu_to_le16(tag
);
266 hisi_sas_debug_issue_ssp_tmf(task
->dev
, lun
.scsi_lun
, &tmf_task
);
268 /* Do cleanup for this task */
269 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
270 hisi_sas_slot_task_free(hisi_hba
, task
, abort_slot
);
271 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
273 task
->task_done(task
);
276 static int hisi_sas_task_prep(struct sas_task
*task
, struct hisi_sas_dq
277 *dq
, int is_tmf
, struct hisi_sas_tmf_task
*tmf
,
280 struct hisi_hba
*hisi_hba
= dq
->hisi_hba
;
281 struct domain_device
*device
= task
->dev
;
282 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
283 struct hisi_sas_port
*port
;
284 struct hisi_sas_slot
*slot
;
285 struct hisi_sas_cmd_hdr
*cmd_hdr_base
;
286 struct asd_sas_port
*sas_port
= device
->port
;
287 struct device
*dev
= hisi_hba
->dev
;
288 int dlvry_queue_slot
, dlvry_queue
, n_elem
= 0, rc
, slot_idx
;
292 struct task_status_struct
*ts
= &task
->task_status
;
294 ts
->resp
= SAS_TASK_UNDELIVERED
;
295 ts
->stat
= SAS_PHY_DOWN
;
297 * libsas will use dev->port, should
298 * not call task_done for sata
300 if (device
->dev_type
!= SAS_SATA_DEV
)
301 task
->task_done(task
);
305 if (DEV_IS_GONE(sas_dev
)) {
307 dev_info(dev
, "task prep: device %d not ready\n",
310 dev_info(dev
, "task prep: device %016llx not ready\n",
311 SAS_ADDR(device
->sas_addr
));
316 port
= to_hisi_sas_port(sas_port
);
317 if (port
&& !port
->port_attached
) {
318 dev_info(dev
, "task prep: %s port%d not attach device\n",
319 (dev_is_sata(device
)) ?
326 if (!sas_protocol_ata(task
->task_proto
)) {
327 if (task
->num_scatter
) {
328 n_elem
= dma_map_sg(dev
, task
->scatter
,
329 task
->num_scatter
, task
->data_dir
);
336 n_elem
= task
->num_scatter
;
338 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
339 if (hisi_hba
->hw
->slot_index_alloc
)
340 rc
= hisi_hba
->hw
->slot_index_alloc(hisi_hba
, &slot_idx
,
343 rc
= hisi_sas_slot_index_alloc(hisi_hba
, &slot_idx
);
345 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
348 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
350 rc
= hisi_hba
->hw
->get_free_slot(hisi_hba
, dq
);
354 dlvry_queue
= dq
->id
;
355 dlvry_queue_slot
= dq
->wr_point
;
356 slot
= &hisi_hba
->slot_info
[slot_idx
];
357 memset(slot
, 0, sizeof(struct hisi_sas_slot
));
359 slot
->idx
= slot_idx
;
360 slot
->n_elem
= n_elem
;
361 slot
->dlvry_queue
= dlvry_queue
;
362 slot
->dlvry_queue_slot
= dlvry_queue_slot
;
363 cmd_hdr_base
= hisi_hba
->cmd_hdr
[dlvry_queue
];
364 slot
->cmd_hdr
= &cmd_hdr_base
[dlvry_queue_slot
];
367 task
->lldd_task
= slot
;
368 INIT_WORK(&slot
->abort_slot
, hisi_sas_slot_abort
);
370 slot
->buf
= dma_pool_alloc(hisi_hba
->buffer_pool
,
371 GFP_ATOMIC
, &slot
->buf_dma
);
374 goto err_out_slot_buf
;
376 memset(slot
->cmd_hdr
, 0, sizeof(struct hisi_sas_cmd_hdr
));
377 memset(hisi_sas_cmd_hdr_addr_mem(slot
), 0, HISI_SAS_COMMAND_TABLE_SZ
);
378 memset(hisi_sas_status_buf_addr_mem(slot
), 0, HISI_SAS_STATUS_BUF_SZ
);
380 switch (task
->task_proto
) {
381 case SAS_PROTOCOL_SMP
:
382 rc
= hisi_sas_task_prep_smp(hisi_hba
, slot
);
384 case SAS_PROTOCOL_SSP
:
385 rc
= hisi_sas_task_prep_ssp(hisi_hba
, slot
, is_tmf
, tmf
);
387 case SAS_PROTOCOL_SATA
:
388 case SAS_PROTOCOL_STP
:
389 case SAS_PROTOCOL_SATA
| SAS_PROTOCOL_STP
:
390 rc
= hisi_sas_task_prep_ata(hisi_hba
, slot
);
393 dev_err(dev
, "task prep: unknown/unsupported proto (0x%x)\n",
400 dev_err(dev
, "task prep: rc = 0x%x\n", rc
);
404 list_add_tail(&slot
->entry
, &sas_dev
->list
);
405 spin_lock_irqsave(&task
->task_state_lock
, flags
);
406 task
->task_state_flags
|= SAS_TASK_AT_INITIATOR
;
407 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
409 dq
->slot_prep
= slot
;
411 atomic64_inc(&sas_dev
->running_req
);
417 dma_pool_free(hisi_hba
->buffer_pool
, slot
->buf
,
420 /* Nothing to be done */
422 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
423 hisi_sas_slot_index_free(hisi_hba
, slot_idx
);
424 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
426 dev_err(dev
, "task prep: failed[%d]!\n", rc
);
427 if (!sas_protocol_ata(task
->task_proto
))
429 dma_unmap_sg(dev
, task
->scatter
, n_elem
,
435 static int hisi_sas_task_exec(struct sas_task
*task
, gfp_t gfp_flags
,
436 int is_tmf
, struct hisi_sas_tmf_task
*tmf
)
441 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(task
->dev
);
442 struct device
*dev
= hisi_hba
->dev
;
443 struct domain_device
*device
= task
->dev
;
444 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
445 struct hisi_sas_dq
*dq
= sas_dev
->dq
;
447 if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT
, &hisi_hba
->flags
)))
450 /* protect task_prep and start_delivery sequence */
451 spin_lock_irqsave(&dq
->lock
, flags
);
452 rc
= hisi_sas_task_prep(task
, dq
, is_tmf
, tmf
, &pass
);
454 dev_err(dev
, "task exec: failed[%d]!\n", rc
);
457 hisi_hba
->hw
->start_delivery(dq
);
458 spin_unlock_irqrestore(&dq
->lock
, flags
);
463 static void hisi_sas_bytes_dmaed(struct hisi_hba
*hisi_hba
, int phy_no
)
465 struct hisi_sas_phy
*phy
= &hisi_hba
->phy
[phy_no
];
466 struct asd_sas_phy
*sas_phy
= &phy
->sas_phy
;
467 struct sas_ha_struct
*sas_ha
;
469 if (!phy
->phy_attached
)
472 sas_ha
= &hisi_hba
->sha
;
473 sas_ha
->notify_phy_event(sas_phy
, PHYE_OOB_DONE
);
476 struct sas_phy
*sphy
= sas_phy
->phy
;
478 sphy
->negotiated_linkrate
= sas_phy
->linkrate
;
479 sphy
->minimum_linkrate_hw
= SAS_LINK_RATE_1_5_GBPS
;
480 sphy
->maximum_linkrate_hw
=
481 hisi_hba
->hw
->phy_get_max_linkrate();
482 if (sphy
->minimum_linkrate
== SAS_LINK_RATE_UNKNOWN
)
483 sphy
->minimum_linkrate
= phy
->minimum_linkrate
;
485 if (sphy
->maximum_linkrate
== SAS_LINK_RATE_UNKNOWN
)
486 sphy
->maximum_linkrate
= phy
->maximum_linkrate
;
489 if (phy
->phy_type
& PORT_TYPE_SAS
) {
490 struct sas_identify_frame
*id
;
492 id
= (struct sas_identify_frame
*)phy
->frame_rcvd
;
493 id
->dev_type
= phy
->identify
.device_type
;
494 id
->initiator_bits
= SAS_PROTOCOL_ALL
;
495 id
->target_bits
= phy
->identify
.target_port_protocols
;
496 } else if (phy
->phy_type
& PORT_TYPE_SATA
) {
500 sas_phy
->frame_rcvd_size
= phy
->frame_rcvd_size
;
501 sas_ha
->notify_port_event(sas_phy
, PORTE_BYTES_DMAED
);
504 static struct hisi_sas_device
*hisi_sas_alloc_dev(struct domain_device
*device
)
506 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(device
);
507 struct hisi_sas_device
*sas_dev
= NULL
;
510 spin_lock(&hisi_hba
->lock
);
511 for (i
= 0; i
< HISI_SAS_MAX_DEVICES
; i
++) {
512 if (hisi_hba
->devices
[i
].dev_type
== SAS_PHY_UNUSED
) {
513 int queue
= i
% hisi_hba
->queue_count
;
514 struct hisi_sas_dq
*dq
= &hisi_hba
->dq
[queue
];
516 hisi_hba
->devices
[i
].device_id
= i
;
517 sas_dev
= &hisi_hba
->devices
[i
];
518 sas_dev
->dev_status
= HISI_SAS_DEV_NORMAL
;
519 sas_dev
->dev_type
= device
->dev_type
;
520 sas_dev
->hisi_hba
= hisi_hba
;
521 sas_dev
->sas_device
= device
;
523 INIT_LIST_HEAD(&hisi_hba
->devices
[i
].list
);
527 spin_unlock(&hisi_hba
->lock
);
532 static int hisi_sas_dev_found(struct domain_device
*device
)
534 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(device
);
535 struct domain_device
*parent_dev
= device
->parent
;
536 struct hisi_sas_device
*sas_dev
;
537 struct device
*dev
= hisi_hba
->dev
;
539 if (hisi_hba
->hw
->alloc_dev
)
540 sas_dev
= hisi_hba
->hw
->alloc_dev(device
);
542 sas_dev
= hisi_sas_alloc_dev(device
);
544 dev_err(dev
, "fail alloc dev: max support %d devices\n",
545 HISI_SAS_MAX_DEVICES
);
549 device
->lldd_dev
= sas_dev
;
550 hisi_hba
->hw
->setup_itct(hisi_hba
, sas_dev
);
552 if (parent_dev
&& DEV_IS_EXPANDER(parent_dev
->dev_type
)) {
554 u8 phy_num
= parent_dev
->ex_dev
.num_phys
;
557 for (phy_no
= 0; phy_no
< phy_num
; phy_no
++) {
558 phy
= &parent_dev
->ex_dev
.ex_phy
[phy_no
];
559 if (SAS_ADDR(phy
->attached_sas_addr
) ==
560 SAS_ADDR(device
->sas_addr
)) {
561 sas_dev
->attached_phy
= phy_no
;
566 if (phy_no
== phy_num
) {
567 dev_info(dev
, "dev found: no attached "
568 "dev:%016llx at ex:%016llx\n",
569 SAS_ADDR(device
->sas_addr
),
570 SAS_ADDR(parent_dev
->sas_addr
));
578 static int hisi_sas_slave_configure(struct scsi_device
*sdev
)
580 struct domain_device
*dev
= sdev_to_domain_dev(sdev
);
581 int ret
= sas_slave_configure(sdev
);
585 if (!dev_is_sata(dev
))
586 sas_change_queue_depth(sdev
, 64);
591 static void hisi_sas_scan_start(struct Scsi_Host
*shost
)
593 struct hisi_hba
*hisi_hba
= shost_priv(shost
);
595 hisi_hba
->hw
->phys_init(hisi_hba
);
598 static int hisi_sas_scan_finished(struct Scsi_Host
*shost
, unsigned long time
)
600 struct hisi_hba
*hisi_hba
= shost_priv(shost
);
601 struct sas_ha_struct
*sha
= &hisi_hba
->sha
;
603 /* Wait for PHY up interrupt to occur */
611 static void hisi_sas_phyup_work(struct work_struct
*work
)
613 struct hisi_sas_phy
*phy
=
614 container_of(work
, struct hisi_sas_phy
, phyup_ws
);
615 struct hisi_hba
*hisi_hba
= phy
->hisi_hba
;
616 struct asd_sas_phy
*sas_phy
= &phy
->sas_phy
;
617 int phy_no
= sas_phy
->id
;
619 hisi_hba
->hw
->sl_notify(hisi_hba
, phy_no
); /* This requires a sleep */
620 hisi_sas_bytes_dmaed(hisi_hba
, phy_no
);
623 static void hisi_sas_phy_init(struct hisi_hba
*hisi_hba
, int phy_no
)
625 struct hisi_sas_phy
*phy
= &hisi_hba
->phy
[phy_no
];
626 struct asd_sas_phy
*sas_phy
= &phy
->sas_phy
;
628 phy
->hisi_hba
= hisi_hba
;
630 init_timer(&phy
->timer
);
631 sas_phy
->enabled
= (phy_no
< hisi_hba
->n_phy
) ? 1 : 0;
632 sas_phy
->class = SAS
;
633 sas_phy
->iproto
= SAS_PROTOCOL_ALL
;
635 sas_phy
->type
= PHY_TYPE_PHYSICAL
;
636 sas_phy
->role
= PHY_ROLE_INITIATOR
;
637 sas_phy
->oob_mode
= OOB_NOT_CONNECTED
;
638 sas_phy
->linkrate
= SAS_LINK_RATE_UNKNOWN
;
639 sas_phy
->id
= phy_no
;
640 sas_phy
->sas_addr
= &hisi_hba
->sas_addr
[0];
641 sas_phy
->frame_rcvd
= &phy
->frame_rcvd
[0];
642 sas_phy
->ha
= (struct sas_ha_struct
*)hisi_hba
->shost
->hostdata
;
643 sas_phy
->lldd_phy
= phy
;
645 INIT_WORK(&phy
->phyup_ws
, hisi_sas_phyup_work
);
648 static void hisi_sas_port_notify_formed(struct asd_sas_phy
*sas_phy
)
650 struct sas_ha_struct
*sas_ha
= sas_phy
->ha
;
651 struct hisi_hba
*hisi_hba
= sas_ha
->lldd_ha
;
652 struct hisi_sas_phy
*phy
= sas_phy
->lldd_phy
;
653 struct asd_sas_port
*sas_port
= sas_phy
->port
;
654 struct hisi_sas_port
*port
= to_hisi_sas_port(sas_port
);
660 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
661 port
->port_attached
= 1;
662 port
->id
= phy
->port_id
;
664 sas_port
->lldd_port
= port
;
665 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
668 static void hisi_sas_do_release_task(struct hisi_hba
*hisi_hba
, struct sas_task
*task
,
669 struct hisi_sas_slot
*slot
)
673 struct task_status_struct
*ts
;
675 ts
= &task
->task_status
;
677 ts
->resp
= SAS_TASK_COMPLETE
;
678 ts
->stat
= SAS_ABORTED_TASK
;
679 spin_lock_irqsave(&task
->task_state_lock
, flags
);
680 task
->task_state_flags
&=
681 ~(SAS_TASK_STATE_PENDING
| SAS_TASK_AT_INITIATOR
);
682 task
->task_state_flags
|= SAS_TASK_STATE_DONE
;
683 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
686 hisi_sas_slot_task_free(hisi_hba
, task
, slot
);
689 /* hisi_hba.lock should be locked */
690 static void hisi_sas_release_task(struct hisi_hba
*hisi_hba
,
691 struct domain_device
*device
)
693 struct hisi_sas_slot
*slot
, *slot2
;
694 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
696 list_for_each_entry_safe(slot
, slot2
, &sas_dev
->list
, entry
)
697 hisi_sas_do_release_task(hisi_hba
, slot
->task
, slot
);
700 static void hisi_sas_release_tasks(struct hisi_hba
*hisi_hba
)
702 struct hisi_sas_device
*sas_dev
;
703 struct domain_device
*device
;
706 for (i
= 0; i
< HISI_SAS_MAX_DEVICES
; i
++) {
707 sas_dev
= &hisi_hba
->devices
[i
];
708 device
= sas_dev
->sas_device
;
710 if ((sas_dev
->dev_type
== SAS_PHY_UNUSED
) ||
714 hisi_sas_release_task(hisi_hba
, device
);
718 static void hisi_sas_dereg_device(struct hisi_hba
*hisi_hba
,
719 struct domain_device
*device
)
721 if (hisi_hba
->hw
->dereg_device
)
722 hisi_hba
->hw
->dereg_device(hisi_hba
, device
);
725 static void hisi_sas_dev_gone(struct domain_device
*device
)
727 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
728 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(device
);
729 struct device
*dev
= hisi_hba
->dev
;
731 dev_info(dev
, "found dev[%d:%x] is gone\n",
732 sas_dev
->device_id
, sas_dev
->dev_type
);
734 hisi_sas_internal_task_abort(hisi_hba
, device
,
735 HISI_SAS_INT_ABT_DEV
, 0);
737 hisi_sas_dereg_device(hisi_hba
, device
);
739 hisi_hba
->hw
->free_device(hisi_hba
, sas_dev
);
740 device
->lldd_dev
= NULL
;
741 memset(sas_dev
, 0, sizeof(*sas_dev
));
742 sas_dev
->dev_type
= SAS_PHY_UNUSED
;
745 static int hisi_sas_queue_command(struct sas_task
*task
, gfp_t gfp_flags
)
747 return hisi_sas_task_exec(task
, gfp_flags
, 0, NULL
);
750 static int hisi_sas_control_phy(struct asd_sas_phy
*sas_phy
, enum phy_func func
,
753 struct sas_ha_struct
*sas_ha
= sas_phy
->ha
;
754 struct hisi_hba
*hisi_hba
= sas_ha
->lldd_ha
;
755 int phy_no
= sas_phy
->id
;
758 case PHY_FUNC_HARD_RESET
:
759 hisi_hba
->hw
->phy_hard_reset(hisi_hba
, phy_no
);
762 case PHY_FUNC_LINK_RESET
:
763 hisi_hba
->hw
->phy_disable(hisi_hba
, phy_no
);
765 hisi_hba
->hw
->phy_enable(hisi_hba
, phy_no
);
768 case PHY_FUNC_DISABLE
:
769 hisi_hba
->hw
->phy_disable(hisi_hba
, phy_no
);
772 case PHY_FUNC_SET_LINK_RATE
:
773 hisi_hba
->hw
->phy_set_linkrate(hisi_hba
, phy_no
, funcdata
);
775 case PHY_FUNC_GET_EVENTS
:
776 if (hisi_hba
->hw
->get_events
) {
777 hisi_hba
->hw
->get_events(hisi_hba
, phy_no
);
781 case PHY_FUNC_RELEASE_SPINUP_HOLD
:
788 static void hisi_sas_task_done(struct sas_task
*task
)
790 if (!del_timer(&task
->slow_task
->timer
))
792 complete(&task
->slow_task
->completion
);
795 static void hisi_sas_tmf_timedout(unsigned long data
)
797 struct sas_task
*task
= (struct sas_task
*)data
;
800 spin_lock_irqsave(&task
->task_state_lock
, flags
);
801 if (!(task
->task_state_flags
& SAS_TASK_STATE_DONE
))
802 task
->task_state_flags
|= SAS_TASK_STATE_ABORTED
;
803 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
805 complete(&task
->slow_task
->completion
);
808 #define TASK_TIMEOUT 20
810 static int hisi_sas_exec_internal_tmf_task(struct domain_device
*device
,
811 void *parameter
, u32 para_len
,
812 struct hisi_sas_tmf_task
*tmf
)
814 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
815 struct hisi_hba
*hisi_hba
= sas_dev
->hisi_hba
;
816 struct device
*dev
= hisi_hba
->dev
;
817 struct sas_task
*task
;
820 for (retry
= 0; retry
< TASK_RETRY
; retry
++) {
821 task
= sas_alloc_slow_task(GFP_KERNEL
);
826 task
->task_proto
= device
->tproto
;
828 if (dev_is_sata(device
)) {
829 task
->ata_task
.device_control_reg_update
= 1;
830 memcpy(&task
->ata_task
.fis
, parameter
, para_len
);
832 memcpy(&task
->ssp_task
, parameter
, para_len
);
834 task
->task_done
= hisi_sas_task_done
;
836 task
->slow_task
->timer
.data
= (unsigned long) task
;
837 task
->slow_task
->timer
.function
= hisi_sas_tmf_timedout
;
838 task
->slow_task
->timer
.expires
= jiffies
+ TASK_TIMEOUT
*HZ
;
839 add_timer(&task
->slow_task
->timer
);
841 res
= hisi_sas_task_exec(task
, GFP_KERNEL
, 1, tmf
);
844 del_timer(&task
->slow_task
->timer
);
845 dev_err(dev
, "abort tmf: executing internal task failed: %d\n",
850 wait_for_completion(&task
->slow_task
->completion
);
851 res
= TMF_RESP_FUNC_FAILED
;
852 /* Even TMF timed out, return direct. */
853 if ((task
->task_state_flags
& SAS_TASK_STATE_ABORTED
)) {
854 if (!(task
->task_state_flags
& SAS_TASK_STATE_DONE
)) {
855 struct hisi_sas_slot
*slot
= task
->lldd_task
;
857 dev_err(dev
, "abort tmf: TMF task timeout\n");
865 if (task
->task_status
.resp
== SAS_TASK_COMPLETE
&&
866 task
->task_status
.stat
== TMF_RESP_FUNC_COMPLETE
) {
867 res
= TMF_RESP_FUNC_COMPLETE
;
871 if (task
->task_status
.resp
== SAS_TASK_COMPLETE
&&
872 task
->task_status
.stat
== TMF_RESP_FUNC_SUCC
) {
873 res
= TMF_RESP_FUNC_SUCC
;
877 if (task
->task_status
.resp
== SAS_TASK_COMPLETE
&&
878 task
->task_status
.stat
== SAS_DATA_UNDERRUN
) {
879 /* no error, but return the number of bytes of
882 dev_warn(dev
, "abort tmf: task to dev %016llx "
883 "resp: 0x%x sts 0x%x underrun\n",
884 SAS_ADDR(device
->sas_addr
),
885 task
->task_status
.resp
,
886 task
->task_status
.stat
);
887 res
= task
->task_status
.residual
;
891 if (task
->task_status
.resp
== SAS_TASK_COMPLETE
&&
892 task
->task_status
.stat
== SAS_DATA_OVERRUN
) {
893 dev_warn(dev
, "abort tmf: blocked task error\n");
898 dev_warn(dev
, "abort tmf: task to dev "
899 "%016llx resp: 0x%x status 0x%x\n",
900 SAS_ADDR(device
->sas_addr
), task
->task_status
.resp
,
901 task
->task_status
.stat
);
906 if (retry
== TASK_RETRY
)
907 dev_warn(dev
, "abort tmf: executing internal task failed!\n");
912 static void hisi_sas_fill_ata_reset_cmd(struct ata_device
*dev
,
913 bool reset
, int pmp
, u8
*fis
)
915 struct ata_taskfile tf
;
917 ata_tf_init(dev
, &tf
);
922 tf
.command
= ATA_CMD_DEV_RESET
;
923 ata_tf_to_fis(&tf
, pmp
, 0, fis
);
926 static int hisi_sas_softreset_ata_disk(struct domain_device
*device
)
929 struct ata_port
*ap
= device
->sata_dev
.ap
;
930 struct ata_link
*link
;
931 int rc
= TMF_RESP_FUNC_FAILED
;
932 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(device
);
933 struct device
*dev
= hisi_hba
->dev
;
934 int s
= sizeof(struct host_to_dev_fis
);
937 ata_for_each_link(link
, ap
, EDGE
) {
938 int pmp
= sata_srst_pmp(link
);
940 hisi_sas_fill_ata_reset_cmd(link
->device
, 1, pmp
, fis
);
941 rc
= hisi_sas_exec_internal_tmf_task(device
, fis
, s
, NULL
);
942 if (rc
!= TMF_RESP_FUNC_COMPLETE
)
946 if (rc
== TMF_RESP_FUNC_COMPLETE
) {
947 ata_for_each_link(link
, ap
, EDGE
) {
948 int pmp
= sata_srst_pmp(link
);
950 hisi_sas_fill_ata_reset_cmd(link
->device
, 0, pmp
, fis
);
951 rc
= hisi_sas_exec_internal_tmf_task(device
, fis
,
953 if (rc
!= TMF_RESP_FUNC_COMPLETE
)
954 dev_err(dev
, "ata disk de-reset failed\n");
957 dev_err(dev
, "ata disk reset failed\n");
960 if (rc
== TMF_RESP_FUNC_COMPLETE
) {
961 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
962 hisi_sas_release_task(hisi_hba
, device
);
963 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
969 static int hisi_sas_debug_issue_ssp_tmf(struct domain_device
*device
,
970 u8
*lun
, struct hisi_sas_tmf_task
*tmf
)
972 struct sas_ssp_task ssp_task
;
974 if (!(device
->tproto
& SAS_PROTOCOL_SSP
))
975 return TMF_RESP_FUNC_ESUPP
;
977 memcpy(ssp_task
.LUN
, lun
, 8);
979 return hisi_sas_exec_internal_tmf_task(device
, &ssp_task
,
980 sizeof(ssp_task
), tmf
);
983 static void hisi_sas_refresh_port_id(struct hisi_hba
*hisi_hba
,
984 struct asd_sas_port
*sas_port
, enum sas_linkrate linkrate
)
986 struct hisi_sas_device
*sas_dev
;
987 struct domain_device
*device
;
990 for (i
= 0; i
< HISI_SAS_MAX_DEVICES
; i
++) {
991 sas_dev
= &hisi_hba
->devices
[i
];
992 device
= sas_dev
->sas_device
;
993 if ((sas_dev
->dev_type
== SAS_PHY_UNUSED
)
994 || !device
|| (device
->port
!= sas_port
))
997 hisi_hba
->hw
->free_device(hisi_hba
, sas_dev
);
999 /* Update linkrate of directly attached device. */
1000 if (!device
->parent
)
1001 device
->linkrate
= linkrate
;
1003 hisi_hba
->hw
->setup_itct(hisi_hba
, sas_dev
);
1007 static void hisi_sas_rescan_topology(struct hisi_hba
*hisi_hba
, u32 old_state
,
1010 struct sas_ha_struct
*sas_ha
= &hisi_hba
->sha
;
1011 struct asd_sas_port
*_sas_port
= NULL
;
1014 for (phy_no
= 0; phy_no
< hisi_hba
->n_phy
; phy_no
++) {
1015 struct hisi_sas_phy
*phy
= &hisi_hba
->phy
[phy_no
];
1016 struct asd_sas_phy
*sas_phy
= &phy
->sas_phy
;
1017 struct asd_sas_port
*sas_port
= sas_phy
->port
;
1018 struct hisi_sas_port
*port
= to_hisi_sas_port(sas_port
);
1019 bool do_port_check
= !!(_sas_port
!= sas_port
);
1021 if (!sas_phy
->phy
->enabled
)
1024 /* Report PHY state change to libsas */
1025 if (state
& (1 << phy_no
)) {
1026 if (do_port_check
&& sas_port
) {
1027 struct domain_device
*dev
= sas_port
->port_dev
;
1029 _sas_port
= sas_port
;
1030 port
->id
= phy
->port_id
;
1031 hisi_sas_refresh_port_id(hisi_hba
,
1032 sas_port
, sas_phy
->linkrate
);
1034 if (DEV_IS_EXPANDER(dev
->dev_type
))
1035 sas_ha
->notify_port_event(sas_phy
,
1036 PORTE_BROADCAST_RCVD
);
1038 } else if (old_state
& (1 << phy_no
))
1039 /* PHY down but was up before */
1040 hisi_sas_phy_down(hisi_hba
, phy_no
, 0);
1044 drain_workqueue(hisi_hba
->shost
->work_q
);
1047 static int hisi_sas_controller_reset(struct hisi_hba
*hisi_hba
)
1049 struct sas_ha_struct
*sas_ha
= &hisi_hba
->sha
;
1050 struct device
*dev
= hisi_hba
->dev
;
1051 struct Scsi_Host
*shost
= hisi_hba
->shost
;
1052 u32 old_state
, state
;
1053 unsigned long flags
;
1056 if (!hisi_hba
->hw
->soft_reset
)
1059 if (test_and_set_bit(HISI_SAS_RESET_BIT
, &hisi_hba
->flags
))
1062 dev_dbg(dev
, "controller resetting...\n");
1063 old_state
= hisi_hba
->hw
->get_phys_state(hisi_hba
);
1065 scsi_block_requests(shost
);
1066 set_bit(HISI_SAS_REJECT_CMD_BIT
, &hisi_hba
->flags
);
1067 rc
= hisi_hba
->hw
->soft_reset(hisi_hba
);
1069 dev_warn(dev
, "controller reset failed (%d)\n", rc
);
1070 clear_bit(HISI_SAS_REJECT_CMD_BIT
, &hisi_hba
->flags
);
1073 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
1074 hisi_sas_release_tasks(hisi_hba
);
1075 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1077 sas_ha
->notify_ha_event(sas_ha
, HAE_RESET
);
1078 clear_bit(HISI_SAS_REJECT_CMD_BIT
, &hisi_hba
->flags
);
1080 /* Init and wait for PHYs to come up and all libsas event finished. */
1081 hisi_hba
->hw
->phys_init(hisi_hba
);
1083 drain_workqueue(hisi_hba
->wq
);
1084 drain_workqueue(shost
->work_q
);
1086 state
= hisi_hba
->hw
->get_phys_state(hisi_hba
);
1087 hisi_sas_rescan_topology(hisi_hba
, old_state
, state
);
1088 dev_dbg(dev
, "controller reset complete\n");
1091 scsi_unblock_requests(shost
);
1092 clear_bit(HISI_SAS_RESET_BIT
, &hisi_hba
->flags
);
1097 static int hisi_sas_abort_task(struct sas_task
*task
)
1099 struct scsi_lun lun
;
1100 struct hisi_sas_tmf_task tmf_task
;
1101 struct domain_device
*device
= task
->dev
;
1102 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
1103 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(task
->dev
);
1104 struct device
*dev
= hisi_hba
->dev
;
1105 int rc
= TMF_RESP_FUNC_FAILED
;
1106 unsigned long flags
;
1109 dev_warn(dev
, "Device has been removed\n");
1110 return TMF_RESP_FUNC_FAILED
;
1113 if (task
->task_state_flags
& SAS_TASK_STATE_DONE
) {
1114 rc
= TMF_RESP_FUNC_COMPLETE
;
1118 sas_dev
->dev_status
= HISI_SAS_DEV_EH
;
1119 if (task
->lldd_task
&& task
->task_proto
& SAS_PROTOCOL_SSP
) {
1120 struct scsi_cmnd
*cmnd
= task
->uldd_task
;
1121 struct hisi_sas_slot
*slot
= task
->lldd_task
;
1122 u32 tag
= slot
->idx
;
1125 int_to_scsilun(cmnd
->device
->lun
, &lun
);
1126 tmf_task
.tmf
= TMF_ABORT_TASK
;
1127 tmf_task
.tag_of_task_to_be_managed
= cpu_to_le16(tag
);
1129 rc
= hisi_sas_debug_issue_ssp_tmf(task
->dev
, lun
.scsi_lun
,
1132 rc2
= hisi_sas_internal_task_abort(hisi_hba
, device
,
1133 HISI_SAS_INT_ABT_CMD
, tag
);
1135 * If the TMF finds that the IO is not in the device and also
1136 * the internal abort does not succeed, then it is safe to
1138 * Note: if the internal abort succeeds then the slot
1139 * will have already been completed
1141 if (rc
== TMF_RESP_FUNC_COMPLETE
&& rc2
!= TMF_RESP_FUNC_SUCC
) {
1142 if (task
->lldd_task
) {
1143 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
1144 hisi_sas_do_release_task(hisi_hba
, task
, slot
);
1145 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1148 } else if (task
->task_proto
& SAS_PROTOCOL_SATA
||
1149 task
->task_proto
& SAS_PROTOCOL_STP
) {
1150 if (task
->dev
->dev_type
== SAS_SATA_DEV
) {
1151 hisi_sas_internal_task_abort(hisi_hba
, device
,
1152 HISI_SAS_INT_ABT_DEV
, 0);
1153 hisi_sas_dereg_device(hisi_hba
, device
);
1154 rc
= hisi_sas_softreset_ata_disk(device
);
1156 } else if (task
->lldd_task
&& task
->task_proto
& SAS_PROTOCOL_SMP
) {
1158 struct hisi_sas_slot
*slot
= task
->lldd_task
;
1159 u32 tag
= slot
->idx
;
1161 rc
= hisi_sas_internal_task_abort(hisi_hba
, device
,
1162 HISI_SAS_INT_ABT_CMD
, tag
);
1163 if (rc
== TMF_RESP_FUNC_FAILED
) {
1164 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
1165 hisi_sas_do_release_task(hisi_hba
, task
, slot
);
1166 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1171 if (rc
!= TMF_RESP_FUNC_COMPLETE
)
1172 dev_notice(dev
, "abort task: rc=%d\n", rc
);
1176 static int hisi_sas_abort_task_set(struct domain_device
*device
, u8
*lun
)
1178 struct hisi_sas_tmf_task tmf_task
;
1179 int rc
= TMF_RESP_FUNC_FAILED
;
1181 tmf_task
.tmf
= TMF_ABORT_TASK_SET
;
1182 rc
= hisi_sas_debug_issue_ssp_tmf(device
, lun
, &tmf_task
);
1187 static int hisi_sas_clear_aca(struct domain_device
*device
, u8
*lun
)
1189 int rc
= TMF_RESP_FUNC_FAILED
;
1190 struct hisi_sas_tmf_task tmf_task
;
1192 tmf_task
.tmf
= TMF_CLEAR_ACA
;
1193 rc
= hisi_sas_debug_issue_ssp_tmf(device
, lun
, &tmf_task
);
1198 static int hisi_sas_debug_I_T_nexus_reset(struct domain_device
*device
)
1200 struct sas_phy
*phy
= sas_get_local_phy(device
);
1201 int rc
, reset_type
= (device
->dev_type
== SAS_SATA_DEV
||
1202 (device
->tproto
& SAS_PROTOCOL_STP
)) ? 0 : 1;
1203 rc
= sas_phy_reset(phy
, reset_type
);
1204 sas_put_local_phy(phy
);
1209 static int hisi_sas_I_T_nexus_reset(struct domain_device
*device
)
1211 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
1212 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(device
);
1213 unsigned long flags
;
1214 int rc
= TMF_RESP_FUNC_FAILED
;
1216 if (sas_dev
->dev_status
!= HISI_SAS_DEV_EH
)
1217 return TMF_RESP_FUNC_FAILED
;
1218 sas_dev
->dev_status
= HISI_SAS_DEV_NORMAL
;
1220 hisi_sas_internal_task_abort(hisi_hba
, device
,
1221 HISI_SAS_INT_ABT_DEV
, 0);
1222 hisi_sas_dereg_device(hisi_hba
, device
);
1224 rc
= hisi_sas_debug_I_T_nexus_reset(device
);
1226 if (rc
== TMF_RESP_FUNC_COMPLETE
) {
1227 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
1228 hisi_sas_release_task(hisi_hba
, device
);
1229 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1234 static int hisi_sas_lu_reset(struct domain_device
*device
, u8
*lun
)
1236 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
1237 struct hisi_hba
*hisi_hba
= dev_to_hisi_hba(device
);
1238 struct device
*dev
= hisi_hba
->dev
;
1239 unsigned long flags
;
1240 int rc
= TMF_RESP_FUNC_FAILED
;
1242 sas_dev
->dev_status
= HISI_SAS_DEV_EH
;
1243 if (dev_is_sata(device
)) {
1244 struct sas_phy
*phy
;
1246 /* Clear internal IO and then hardreset */
1247 rc
= hisi_sas_internal_task_abort(hisi_hba
, device
,
1248 HISI_SAS_INT_ABT_DEV
, 0);
1249 if (rc
== TMF_RESP_FUNC_FAILED
)
1251 hisi_sas_dereg_device(hisi_hba
, device
);
1253 phy
= sas_get_local_phy(device
);
1255 rc
= sas_phy_reset(phy
, 1);
1258 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
1259 hisi_sas_release_task(hisi_hba
, device
);
1260 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1262 sas_put_local_phy(phy
);
1264 struct hisi_sas_tmf_task tmf_task
= { .tmf
= TMF_LU_RESET
};
1266 rc
= hisi_sas_debug_issue_ssp_tmf(device
, lun
, &tmf_task
);
1267 if (rc
== TMF_RESP_FUNC_COMPLETE
) {
1268 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
1269 hisi_sas_release_task(hisi_hba
, device
);
1270 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1274 if (rc
!= TMF_RESP_FUNC_COMPLETE
)
1275 dev_err(dev
, "lu_reset: for device[%d]:rc= %d\n",
1276 sas_dev
->device_id
, rc
);
1280 static int hisi_sas_clear_nexus_ha(struct sas_ha_struct
*sas_ha
)
1282 struct hisi_hba
*hisi_hba
= sas_ha
->lldd_ha
;
1284 return hisi_sas_controller_reset(hisi_hba
);
1287 static int hisi_sas_query_task(struct sas_task
*task
)
1289 struct scsi_lun lun
;
1290 struct hisi_sas_tmf_task tmf_task
;
1291 int rc
= TMF_RESP_FUNC_FAILED
;
1293 if (task
->lldd_task
&& task
->task_proto
& SAS_PROTOCOL_SSP
) {
1294 struct scsi_cmnd
*cmnd
= task
->uldd_task
;
1295 struct domain_device
*device
= task
->dev
;
1296 struct hisi_sas_slot
*slot
= task
->lldd_task
;
1297 u32 tag
= slot
->idx
;
1299 int_to_scsilun(cmnd
->device
->lun
, &lun
);
1300 tmf_task
.tmf
= TMF_QUERY_TASK
;
1301 tmf_task
.tag_of_task_to_be_managed
= cpu_to_le16(tag
);
1303 rc
= hisi_sas_debug_issue_ssp_tmf(device
,
1307 /* The task is still in Lun, release it then */
1308 case TMF_RESP_FUNC_SUCC
:
1309 /* The task is not in Lun or failed, reset the phy */
1310 case TMF_RESP_FUNC_FAILED
:
1311 case TMF_RESP_FUNC_COMPLETE
:
1314 rc
= TMF_RESP_FUNC_FAILED
;
1322 hisi_sas_internal_abort_task_exec(struct hisi_hba
*hisi_hba
, int device_id
,
1323 struct sas_task
*task
, int abort_flag
,
1326 struct domain_device
*device
= task
->dev
;
1327 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
1328 struct device
*dev
= hisi_hba
->dev
;
1329 struct hisi_sas_port
*port
;
1330 struct hisi_sas_slot
*slot
;
1331 struct asd_sas_port
*sas_port
= device
->port
;
1332 struct hisi_sas_cmd_hdr
*cmd_hdr_base
;
1333 struct hisi_sas_dq
*dq
= sas_dev
->dq
;
1334 int dlvry_queue_slot
, dlvry_queue
, n_elem
= 0, rc
, slot_idx
;
1335 unsigned long flags
, flags_dq
;
1337 if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT
, &hisi_hba
->flags
)))
1343 port
= to_hisi_sas_port(sas_port
);
1345 /* simply get a slot and send abort command */
1346 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
1347 rc
= hisi_sas_slot_index_alloc(hisi_hba
, &slot_idx
);
1349 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1352 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1354 spin_lock_irqsave(&dq
->lock
, flags_dq
);
1355 rc
= hisi_hba
->hw
->get_free_slot(hisi_hba
, dq
);
1359 dlvry_queue
= dq
->id
;
1360 dlvry_queue_slot
= dq
->wr_point
;
1362 slot
= &hisi_hba
->slot_info
[slot_idx
];
1363 memset(slot
, 0, sizeof(struct hisi_sas_slot
));
1365 slot
->idx
= slot_idx
;
1366 slot
->n_elem
= n_elem
;
1367 slot
->dlvry_queue
= dlvry_queue
;
1368 slot
->dlvry_queue_slot
= dlvry_queue_slot
;
1369 cmd_hdr_base
= hisi_hba
->cmd_hdr
[dlvry_queue
];
1370 slot
->cmd_hdr
= &cmd_hdr_base
[dlvry_queue_slot
];
1373 task
->lldd_task
= slot
;
1375 slot
->buf
= dma_pool_alloc(hisi_hba
->buffer_pool
,
1376 GFP_ATOMIC
, &slot
->buf_dma
);
1382 memset(slot
->cmd_hdr
, 0, sizeof(struct hisi_sas_cmd_hdr
));
1383 memset(hisi_sas_cmd_hdr_addr_mem(slot
), 0, HISI_SAS_COMMAND_TABLE_SZ
);
1384 memset(hisi_sas_status_buf_addr_mem(slot
), 0, HISI_SAS_STATUS_BUF_SZ
);
1386 rc
= hisi_sas_task_prep_abort(hisi_hba
, slot
, device_id
,
1387 abort_flag
, task_tag
);
1392 list_add_tail(&slot
->entry
, &sas_dev
->list
);
1393 spin_lock_irqsave(&task
->task_state_lock
, flags
);
1394 task
->task_state_flags
|= SAS_TASK_AT_INITIATOR
;
1395 spin_unlock_irqrestore(&task
->task_state_lock
, flags
);
1397 dq
->slot_prep
= slot
;
1399 atomic64_inc(&sas_dev
->running_req
);
1401 /* send abort command to the chip */
1402 hisi_hba
->hw
->start_delivery(dq
);
1403 spin_unlock_irqrestore(&dq
->lock
, flags_dq
);
1408 dma_pool_free(hisi_hba
->buffer_pool
, slot
->buf
,
1411 spin_lock_irqsave(&hisi_hba
->lock
, flags
);
1412 hisi_sas_slot_index_free(hisi_hba
, slot_idx
);
1413 spin_unlock_irqrestore(&hisi_hba
->lock
, flags
);
1414 spin_unlock_irqrestore(&dq
->lock
, flags_dq
);
1416 dev_err(dev
, "internal abort task prep: failed[%d]!\n", rc
);
1422 * hisi_sas_internal_task_abort -- execute an internal
1423 * abort command for single IO command or a device
1424 * @hisi_hba: host controller struct
1425 * @device: domain device
1426 * @abort_flag: mode of operation, device or single IO
1427 * @tag: tag of IO to be aborted (only relevant to single
1431 hisi_sas_internal_task_abort(struct hisi_hba
*hisi_hba
,
1432 struct domain_device
*device
,
1433 int abort_flag
, int tag
)
1435 struct sas_task
*task
;
1436 struct hisi_sas_device
*sas_dev
= device
->lldd_dev
;
1437 struct device
*dev
= hisi_hba
->dev
;
1440 if (!hisi_hba
->hw
->prep_abort
)
1443 task
= sas_alloc_slow_task(GFP_KERNEL
);
1448 task
->task_proto
= device
->tproto
;
1449 task
->task_done
= hisi_sas_task_done
;
1450 task
->slow_task
->timer
.data
= (unsigned long)task
;
1451 task
->slow_task
->timer
.function
= hisi_sas_tmf_timedout
;
1452 task
->slow_task
->timer
.expires
= jiffies
+ msecs_to_jiffies(110);
1453 add_timer(&task
->slow_task
->timer
);
1455 res
= hisi_sas_internal_abort_task_exec(hisi_hba
, sas_dev
->device_id
,
1456 task
, abort_flag
, tag
);
1458 del_timer(&task
->slow_task
->timer
);
1459 dev_err(dev
, "internal task abort: executing internal task failed: %d\n",
1463 wait_for_completion(&task
->slow_task
->completion
);
1464 res
= TMF_RESP_FUNC_FAILED
;
1466 /* Internal abort timed out */
1467 if ((task
->task_state_flags
& SAS_TASK_STATE_ABORTED
)) {
1468 if (!(task
->task_state_flags
& SAS_TASK_STATE_DONE
)) {
1469 struct hisi_sas_slot
*slot
= task
->lldd_task
;
1473 dev_err(dev
, "internal task abort: timeout.\n");
1477 if (task
->task_status
.resp
== SAS_TASK_COMPLETE
&&
1478 task
->task_status
.stat
== TMF_RESP_FUNC_COMPLETE
) {
1479 res
= TMF_RESP_FUNC_COMPLETE
;
1483 if (task
->task_status
.resp
== SAS_TASK_COMPLETE
&&
1484 task
->task_status
.stat
== TMF_RESP_FUNC_SUCC
) {
1485 res
= TMF_RESP_FUNC_SUCC
;
1490 dev_dbg(dev
, "internal task abort: task to dev %016llx task=%p "
1491 "resp: 0x%x sts 0x%x\n",
1492 SAS_ADDR(device
->sas_addr
),
1494 task
->task_status
.resp
, /* 0 is complete, -1 is undelivered */
1495 task
->task_status
.stat
);
1496 sas_free_task(task
);
1501 static void hisi_sas_port_formed(struct asd_sas_phy
*sas_phy
)
1503 hisi_sas_port_notify_formed(sas_phy
);
1506 static void hisi_sas_phy_disconnected(struct hisi_sas_phy
*phy
)
1508 phy
->phy_attached
= 0;
1513 void hisi_sas_phy_down(struct hisi_hba
*hisi_hba
, int phy_no
, int rdy
)
1515 struct hisi_sas_phy
*phy
= &hisi_hba
->phy
[phy_no
];
1516 struct asd_sas_phy
*sas_phy
= &phy
->sas_phy
;
1517 struct sas_ha_struct
*sas_ha
= &hisi_hba
->sha
;
1520 /* Phy down but ready */
1521 hisi_sas_bytes_dmaed(hisi_hba
, phy_no
);
1522 hisi_sas_port_notify_formed(sas_phy
);
1524 struct hisi_sas_port
*port
= phy
->port
;
1526 /* Phy down and not ready */
1527 sas_ha
->notify_phy_event(sas_phy
, PHYE_LOSS_OF_SIGNAL
);
1528 sas_phy_disconnected(sas_phy
);
1531 if (phy
->phy_type
& PORT_TYPE_SAS
) {
1532 int port_id
= port
->id
;
1534 if (!hisi_hba
->hw
->get_wideport_bitmap(hisi_hba
,
1536 port
->port_attached
= 0;
1537 } else if (phy
->phy_type
& PORT_TYPE_SATA
)
1538 port
->port_attached
= 0;
1540 hisi_sas_phy_disconnected(phy
);
1543 EXPORT_SYMBOL_GPL(hisi_sas_phy_down
);
1546 struct scsi_transport_template
*hisi_sas_stt
;
1547 EXPORT_SYMBOL_GPL(hisi_sas_stt
);
1549 static struct scsi_host_template _hisi_sas_sht
= {
1550 .module
= THIS_MODULE
,
1552 .queuecommand
= sas_queuecommand
,
1553 .target_alloc
= sas_target_alloc
,
1554 .slave_configure
= hisi_sas_slave_configure
,
1555 .scan_finished
= hisi_sas_scan_finished
,
1556 .scan_start
= hisi_sas_scan_start
,
1557 .change_queue_depth
= sas_change_queue_depth
,
1558 .bios_param
= sas_bios_param
,
1561 .sg_tablesize
= SG_ALL
,
1562 .max_sectors
= SCSI_DEFAULT_MAX_SECTORS
,
1563 .use_clustering
= ENABLE_CLUSTERING
,
1564 .eh_device_reset_handler
= sas_eh_device_reset_handler
,
1565 .eh_target_reset_handler
= sas_eh_target_reset_handler
,
1566 .target_destroy
= sas_target_destroy
,
1569 struct scsi_host_template
*hisi_sas_sht
= &_hisi_sas_sht
;
1570 EXPORT_SYMBOL_GPL(hisi_sas_sht
);
1572 static struct sas_domain_function_template hisi_sas_transport_ops
= {
1573 .lldd_dev_found
= hisi_sas_dev_found
,
1574 .lldd_dev_gone
= hisi_sas_dev_gone
,
1575 .lldd_execute_task
= hisi_sas_queue_command
,
1576 .lldd_control_phy
= hisi_sas_control_phy
,
1577 .lldd_abort_task
= hisi_sas_abort_task
,
1578 .lldd_abort_task_set
= hisi_sas_abort_task_set
,
1579 .lldd_clear_aca
= hisi_sas_clear_aca
,
1580 .lldd_I_T_nexus_reset
= hisi_sas_I_T_nexus_reset
,
1581 .lldd_lu_reset
= hisi_sas_lu_reset
,
1582 .lldd_query_task
= hisi_sas_query_task
,
1583 .lldd_clear_nexus_ha
= hisi_sas_clear_nexus_ha
,
1584 .lldd_port_formed
= hisi_sas_port_formed
,
1587 void hisi_sas_init_mem(struct hisi_hba
*hisi_hba
)
1589 int i
, s
, max_command_entries
= hisi_hba
->hw
->max_command_entries
;
1591 for (i
= 0; i
< hisi_hba
->queue_count
; i
++) {
1592 struct hisi_sas_cq
*cq
= &hisi_hba
->cq
[i
];
1593 struct hisi_sas_dq
*dq
= &hisi_hba
->dq
[i
];
1595 s
= sizeof(struct hisi_sas_cmd_hdr
) * HISI_SAS_QUEUE_SLOTS
;
1596 memset(hisi_hba
->cmd_hdr
[i
], 0, s
);
1599 s
= hisi_hba
->hw
->complete_hdr_size
* HISI_SAS_QUEUE_SLOTS
;
1600 memset(hisi_hba
->complete_hdr
[i
], 0, s
);
1604 s
= sizeof(struct hisi_sas_initial_fis
) * hisi_hba
->n_phy
;
1605 memset(hisi_hba
->initial_fis
, 0, s
);
1607 s
= max_command_entries
* sizeof(struct hisi_sas_iost
);
1608 memset(hisi_hba
->iost
, 0, s
);
1610 s
= max_command_entries
* sizeof(struct hisi_sas_breakpoint
);
1611 memset(hisi_hba
->breakpoint
, 0, s
);
1613 s
= max_command_entries
* sizeof(struct hisi_sas_breakpoint
) * 2;
1614 memset(hisi_hba
->sata_breakpoint
, 0, s
);
1616 EXPORT_SYMBOL_GPL(hisi_sas_init_mem
);
1618 int hisi_sas_alloc(struct hisi_hba
*hisi_hba
, struct Scsi_Host
*shost
)
1620 struct device
*dev
= hisi_hba
->dev
;
1621 int i
, s
, max_command_entries
= hisi_hba
->hw
->max_command_entries
;
1623 spin_lock_init(&hisi_hba
->lock
);
1624 for (i
= 0; i
< hisi_hba
->n_phy
; i
++) {
1625 hisi_sas_phy_init(hisi_hba
, i
);
1626 hisi_hba
->port
[i
].port_attached
= 0;
1627 hisi_hba
->port
[i
].id
= -1;
1630 for (i
= 0; i
< HISI_SAS_MAX_DEVICES
; i
++) {
1631 hisi_hba
->devices
[i
].dev_type
= SAS_PHY_UNUSED
;
1632 hisi_hba
->devices
[i
].device_id
= i
;
1633 hisi_hba
->devices
[i
].dev_status
= HISI_SAS_DEV_NORMAL
;
1636 for (i
= 0; i
< hisi_hba
->queue_count
; i
++) {
1637 struct hisi_sas_cq
*cq
= &hisi_hba
->cq
[i
];
1638 struct hisi_sas_dq
*dq
= &hisi_hba
->dq
[i
];
1640 /* Completion queue structure */
1642 cq
->hisi_hba
= hisi_hba
;
1644 /* Delivery queue structure */
1646 dq
->hisi_hba
= hisi_hba
;
1648 /* Delivery queue */
1649 s
= sizeof(struct hisi_sas_cmd_hdr
) * HISI_SAS_QUEUE_SLOTS
;
1650 hisi_hba
->cmd_hdr
[i
] = dma_alloc_coherent(dev
, s
,
1651 &hisi_hba
->cmd_hdr_dma
[i
], GFP_KERNEL
);
1652 if (!hisi_hba
->cmd_hdr
[i
])
1655 /* Completion queue */
1656 s
= hisi_hba
->hw
->complete_hdr_size
* HISI_SAS_QUEUE_SLOTS
;
1657 hisi_hba
->complete_hdr
[i
] = dma_alloc_coherent(dev
, s
,
1658 &hisi_hba
->complete_hdr_dma
[i
], GFP_KERNEL
);
1659 if (!hisi_hba
->complete_hdr
[i
])
1663 s
= sizeof(struct hisi_sas_slot_buf_table
);
1664 hisi_hba
->buffer_pool
= dma_pool_create("dma_buffer", dev
, s
, 16, 0);
1665 if (!hisi_hba
->buffer_pool
)
1668 s
= HISI_SAS_MAX_ITCT_ENTRIES
* sizeof(struct hisi_sas_itct
);
1669 hisi_hba
->itct
= dma_alloc_coherent(dev
, s
, &hisi_hba
->itct_dma
,
1671 if (!hisi_hba
->itct
)
1674 memset(hisi_hba
->itct
, 0, s
);
1676 hisi_hba
->slot_info
= devm_kcalloc(dev
, max_command_entries
,
1677 sizeof(struct hisi_sas_slot
),
1679 if (!hisi_hba
->slot_info
)
1682 s
= max_command_entries
* sizeof(struct hisi_sas_iost
);
1683 hisi_hba
->iost
= dma_alloc_coherent(dev
, s
, &hisi_hba
->iost_dma
,
1685 if (!hisi_hba
->iost
)
1688 s
= max_command_entries
* sizeof(struct hisi_sas_breakpoint
);
1689 hisi_hba
->breakpoint
= dma_alloc_coherent(dev
, s
,
1690 &hisi_hba
->breakpoint_dma
, GFP_KERNEL
);
1691 if (!hisi_hba
->breakpoint
)
1694 hisi_hba
->slot_index_count
= max_command_entries
;
1695 s
= hisi_hba
->slot_index_count
/ BITS_PER_BYTE
;
1696 hisi_hba
->slot_index_tags
= devm_kzalloc(dev
, s
, GFP_KERNEL
);
1697 if (!hisi_hba
->slot_index_tags
)
1700 s
= sizeof(struct hisi_sas_initial_fis
) * HISI_SAS_MAX_PHYS
;
1701 hisi_hba
->initial_fis
= dma_alloc_coherent(dev
, s
,
1702 &hisi_hba
->initial_fis_dma
, GFP_KERNEL
);
1703 if (!hisi_hba
->initial_fis
)
1706 s
= max_command_entries
* sizeof(struct hisi_sas_breakpoint
) * 2;
1707 hisi_hba
->sata_breakpoint
= dma_alloc_coherent(dev
, s
,
1708 &hisi_hba
->sata_breakpoint_dma
, GFP_KERNEL
);
1709 if (!hisi_hba
->sata_breakpoint
)
1711 hisi_sas_init_mem(hisi_hba
);
1713 hisi_sas_slot_index_init(hisi_hba
);
1715 hisi_hba
->wq
= create_singlethread_workqueue(dev_name(dev
));
1716 if (!hisi_hba
->wq
) {
1717 dev_err(dev
, "sas_alloc: failed to create workqueue\n");
1725 EXPORT_SYMBOL_GPL(hisi_sas_alloc
);
1727 void hisi_sas_free(struct hisi_hba
*hisi_hba
)
1729 struct device
*dev
= hisi_hba
->dev
;
1730 int i
, s
, max_command_entries
= hisi_hba
->hw
->max_command_entries
;
1732 for (i
= 0; i
< hisi_hba
->queue_count
; i
++) {
1733 s
= sizeof(struct hisi_sas_cmd_hdr
) * HISI_SAS_QUEUE_SLOTS
;
1734 if (hisi_hba
->cmd_hdr
[i
])
1735 dma_free_coherent(dev
, s
,
1736 hisi_hba
->cmd_hdr
[i
],
1737 hisi_hba
->cmd_hdr_dma
[i
]);
1739 s
= hisi_hba
->hw
->complete_hdr_size
* HISI_SAS_QUEUE_SLOTS
;
1740 if (hisi_hba
->complete_hdr
[i
])
1741 dma_free_coherent(dev
, s
,
1742 hisi_hba
->complete_hdr
[i
],
1743 hisi_hba
->complete_hdr_dma
[i
]);
1746 dma_pool_destroy(hisi_hba
->buffer_pool
);
1748 s
= HISI_SAS_MAX_ITCT_ENTRIES
* sizeof(struct hisi_sas_itct
);
1750 dma_free_coherent(dev
, s
,
1751 hisi_hba
->itct
, hisi_hba
->itct_dma
);
1753 s
= max_command_entries
* sizeof(struct hisi_sas_iost
);
1755 dma_free_coherent(dev
, s
,
1756 hisi_hba
->iost
, hisi_hba
->iost_dma
);
1758 s
= max_command_entries
* sizeof(struct hisi_sas_breakpoint
);
1759 if (hisi_hba
->breakpoint
)
1760 dma_free_coherent(dev
, s
,
1761 hisi_hba
->breakpoint
,
1762 hisi_hba
->breakpoint_dma
);
1765 s
= sizeof(struct hisi_sas_initial_fis
) * HISI_SAS_MAX_PHYS
;
1766 if (hisi_hba
->initial_fis
)
1767 dma_free_coherent(dev
, s
,
1768 hisi_hba
->initial_fis
,
1769 hisi_hba
->initial_fis_dma
);
1771 s
= max_command_entries
* sizeof(struct hisi_sas_breakpoint
) * 2;
1772 if (hisi_hba
->sata_breakpoint
)
1773 dma_free_coherent(dev
, s
,
1774 hisi_hba
->sata_breakpoint
,
1775 hisi_hba
->sata_breakpoint_dma
);
1778 destroy_workqueue(hisi_hba
->wq
);
1780 EXPORT_SYMBOL_GPL(hisi_sas_free
);
1782 static void hisi_sas_rst_work_handler(struct work_struct
*work
)
1784 struct hisi_hba
*hisi_hba
=
1785 container_of(work
, struct hisi_hba
, rst_work
);
1787 hisi_sas_controller_reset(hisi_hba
);
1790 int hisi_sas_get_fw_info(struct hisi_hba
*hisi_hba
)
1792 struct device
*dev
= hisi_hba
->dev
;
1793 struct platform_device
*pdev
= hisi_hba
->platform_dev
;
1794 struct device_node
*np
= pdev
? pdev
->dev
.of_node
: NULL
;
1797 if (device_property_read_u8_array(dev
, "sas-addr", hisi_hba
->sas_addr
,
1799 dev_err(dev
, "could not get property sas-addr\n");
1805 * These properties are only required for platform device-based
1806 * controller with DT firmware.
1808 hisi_hba
->ctrl
= syscon_regmap_lookup_by_phandle(np
,
1809 "hisilicon,sas-syscon");
1810 if (IS_ERR(hisi_hba
->ctrl
)) {
1811 dev_err(dev
, "could not get syscon\n");
1815 if (device_property_read_u32(dev
, "ctrl-reset-reg",
1816 &hisi_hba
->ctrl_reset_reg
)) {
1818 "could not get property ctrl-reset-reg\n");
1822 if (device_property_read_u32(dev
, "ctrl-reset-sts-reg",
1823 &hisi_hba
->ctrl_reset_sts_reg
)) {
1825 "could not get property ctrl-reset-sts-reg\n");
1829 if (device_property_read_u32(dev
, "ctrl-clock-ena-reg",
1830 &hisi_hba
->ctrl_clock_ena_reg
)) {
1832 "could not get property ctrl-clock-ena-reg\n");
1837 refclk
= devm_clk_get(dev
, NULL
);
1839 dev_dbg(dev
, "no ref clk property\n");
1841 hisi_hba
->refclk_frequency_mhz
= clk_get_rate(refclk
) / 1000000;
1843 if (device_property_read_u32(dev
, "phy-count", &hisi_hba
->n_phy
)) {
1844 dev_err(dev
, "could not get property phy-count\n");
1848 if (device_property_read_u32(dev
, "queue-count",
1849 &hisi_hba
->queue_count
)) {
1850 dev_err(dev
, "could not get property queue-count\n");
1856 EXPORT_SYMBOL_GPL(hisi_sas_get_fw_info
);
1858 static struct Scsi_Host
*hisi_sas_shost_alloc(struct platform_device
*pdev
,
1859 const struct hisi_sas_hw
*hw
)
1861 struct resource
*res
;
1862 struct Scsi_Host
*shost
;
1863 struct hisi_hba
*hisi_hba
;
1864 struct device
*dev
= &pdev
->dev
;
1866 shost
= scsi_host_alloc(hisi_sas_sht
, sizeof(*hisi_hba
));
1868 dev_err(dev
, "scsi host alloc failed\n");
1871 hisi_hba
= shost_priv(shost
);
1873 INIT_WORK(&hisi_hba
->rst_work
, hisi_sas_rst_work_handler
);
1875 hisi_hba
->dev
= dev
;
1876 hisi_hba
->platform_dev
= pdev
;
1877 hisi_hba
->shost
= shost
;
1878 SHOST_TO_SAS_HA(shost
) = &hisi_hba
->sha
;
1880 init_timer(&hisi_hba
->timer
);
1882 if (hisi_sas_get_fw_info(hisi_hba
) < 0)
1885 if (dma_set_mask_and_coherent(dev
, DMA_BIT_MASK(64)) &&
1886 dma_set_mask_and_coherent(dev
, DMA_BIT_MASK(32))) {
1887 dev_err(dev
, "No usable DMA addressing method\n");
1891 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
1892 hisi_hba
->regs
= devm_ioremap_resource(dev
, res
);
1893 if (IS_ERR(hisi_hba
->regs
))
1896 if (hisi_sas_alloc(hisi_hba
, shost
)) {
1897 hisi_sas_free(hisi_hba
);
1903 scsi_host_put(shost
);
1904 dev_err(dev
, "shost alloc failed\n");
1908 void hisi_sas_init_add(struct hisi_hba
*hisi_hba
)
1912 for (i
= 0; i
< hisi_hba
->n_phy
; i
++)
1913 memcpy(&hisi_hba
->phy
[i
].dev_sas_addr
,
1917 EXPORT_SYMBOL_GPL(hisi_sas_init_add
);
1919 int hisi_sas_probe(struct platform_device
*pdev
,
1920 const struct hisi_sas_hw
*hw
)
1922 struct Scsi_Host
*shost
;
1923 struct hisi_hba
*hisi_hba
;
1924 struct device
*dev
= &pdev
->dev
;
1925 struct asd_sas_phy
**arr_phy
;
1926 struct asd_sas_port
**arr_port
;
1927 struct sas_ha_struct
*sha
;
1928 int rc
, phy_nr
, port_nr
, i
;
1930 shost
= hisi_sas_shost_alloc(pdev
, hw
);
1934 sha
= SHOST_TO_SAS_HA(shost
);
1935 hisi_hba
= shost_priv(shost
);
1936 platform_set_drvdata(pdev
, sha
);
1938 phy_nr
= port_nr
= hisi_hba
->n_phy
;
1940 arr_phy
= devm_kcalloc(dev
, phy_nr
, sizeof(void *), GFP_KERNEL
);
1941 arr_port
= devm_kcalloc(dev
, port_nr
, sizeof(void *), GFP_KERNEL
);
1942 if (!arr_phy
|| !arr_port
) {
1947 sha
->sas_phy
= arr_phy
;
1948 sha
->sas_port
= arr_port
;
1949 sha
->lldd_ha
= hisi_hba
;
1951 shost
->transportt
= hisi_sas_stt
;
1952 shost
->max_id
= HISI_SAS_MAX_DEVICES
;
1953 shost
->max_lun
= ~0;
1954 shost
->max_channel
= 1;
1955 shost
->max_cmd_len
= 16;
1956 shost
->sg_tablesize
= min_t(u16
, SG_ALL
, HISI_SAS_SGE_PAGE_CNT
);
1957 shost
->can_queue
= hisi_hba
->hw
->max_command_entries
;
1958 shost
->cmd_per_lun
= hisi_hba
->hw
->max_command_entries
;
1960 sha
->sas_ha_name
= DRV_NAME
;
1961 sha
->dev
= hisi_hba
->dev
;
1962 sha
->lldd_module
= THIS_MODULE
;
1963 sha
->sas_addr
= &hisi_hba
->sas_addr
[0];
1964 sha
->num_phys
= hisi_hba
->n_phy
;
1965 sha
->core
.shost
= hisi_hba
->shost
;
1967 for (i
= 0; i
< hisi_hba
->n_phy
; i
++) {
1968 sha
->sas_phy
[i
] = &hisi_hba
->phy
[i
].sas_phy
;
1969 sha
->sas_port
[i
] = &hisi_hba
->port
[i
].sas_port
;
1972 hisi_sas_init_add(hisi_hba
);
1974 rc
= scsi_add_host(shost
, &pdev
->dev
);
1978 rc
= sas_register_ha(sha
);
1980 goto err_out_register_ha
;
1982 rc
= hisi_hba
->hw
->hw_init(hisi_hba
);
1984 goto err_out_register_ha
;
1986 scsi_scan_host(shost
);
1990 err_out_register_ha
:
1991 scsi_remove_host(shost
);
1993 hisi_sas_free(hisi_hba
);
1994 scsi_host_put(shost
);
1997 EXPORT_SYMBOL_GPL(hisi_sas_probe
);
1999 int hisi_sas_remove(struct platform_device
*pdev
)
2001 struct sas_ha_struct
*sha
= platform_get_drvdata(pdev
);
2002 struct hisi_hba
*hisi_hba
= sha
->lldd_ha
;
2003 struct Scsi_Host
*shost
= sha
->core
.shost
;
2005 sas_unregister_ha(sha
);
2006 sas_remove_host(sha
->core
.shost
);
2008 hisi_sas_free(hisi_hba
);
2009 scsi_host_put(shost
);
2012 EXPORT_SYMBOL_GPL(hisi_sas_remove
);
2014 static __init
int hisi_sas_init(void)
2016 hisi_sas_stt
= sas_domain_attach_transport(&hisi_sas_transport_ops
);
2023 static __exit
void hisi_sas_exit(void)
2025 sas_release_transport(hisi_sas_stt
);
2028 module_init(hisi_sas_init
);
2029 module_exit(hisi_sas_exit
);
2031 MODULE_LICENSE("GPL");
2032 MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
2033 MODULE_DESCRIPTION("HISILICON SAS controller driver");
2034 MODULE_ALIAS("platform:" DRV_NAME
);