41 	struct ata_port *ap = link->ap;  in sata_scr_valid()  local
43 	return (ap->flags & ATA_FLAG_SATA) && ap->ops->scr_read;  in sata_scr_valid()
54  *	guaranteed to succeed if @link is ap->link, the cable type of
58  *	None if @link is ap->link.  Kernel thread context otherwise.
67 			return link->ap->ops->scr_read(link, reg, val);  in sata_scr_read()
82  *	guaranteed to succeed if @link is ap->link, the cable type of
86  *	None if @link is ap->link.  Kernel thread context otherwise.
95 			return link->ap->ops->scr_write(link, reg, val);  in sata_scr_write()
113  *	None if @link is ap->link.  Kernel thread context otherwise.
124 			rc = link->ap->ops->scr_write(link, reg, val);  in sata_scr_write_flush()
126 				rc = link->ap->ops->scr_read(link, reg, &val);  in sata_scr_write_flush()
254 		ata_msleep(link->ap, interval);  in sata_link_debounce()
321 			ata_msleep(link->ap, 200);  in sata_link_resume()
426 	struct ata_link *host_link = &link->ap->link;  in __sata_set_spd_needed()
570 	ata_msleep(link->ap, 1);  in sata_link_hardreset()
584 	if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) {  in sata_link_hardreset()
620  *	@ap: port in question
625  *	requests normally.  ap->qc_active and @qc_active is compared
638 int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active)  in ata_qc_complete_multiple()  argument
640 	u64 done_mask, ap_qc_active = ap->qc_active;  in ata_qc_complete_multiple()
644 	 * If the internal tag is set on ap->qc_active, then we care about  in ata_qc_complete_multiple()
656 		ata_port_err(ap, "illegal qc_active transition (%08llx->%08llx)\n",  in ata_qc_complete_multiple()
657 			     ap->qc_active, qc_active);  in ata_qc_complete_multiple()
665 		qc = ata_qc_from_tag(ap, tag);  in ata_qc_complete_multiple()
679  *	@ap: port to initialize slave link for
681  *	Create and initialize slave link for @ap.  This enables slave
704  *	handling, separate @ap->slave_link is used.  All dirty details
723 int ata_slave_link_init(struct ata_port *ap)  in ata_slave_link_init()  argument
727 	WARN_ON(ap->slave_link);  in ata_slave_link_init()
728 	WARN_ON(ap->flags & ATA_FLAG_PMP);  in ata_slave_link_init()
734 	ata_link_init(ap, link, 1);  in ata_slave_link_init()
735 	ap->slave_link = link;  in ata_slave_link_init()
786 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_store()  local
803 	spin_lock_irqsave(ap->lock, flags);  in ata_scsi_lpm_store()
805 	ata_for_each_link(link, ap, EDGE) {  in ata_scsi_lpm_store()
806 		ata_for_each_dev(dev, &ap->link, ENABLED) {  in ata_scsi_lpm_store()
814 	ap->target_lpm_policy = policy;  in ata_scsi_lpm_store()
815 	ata_port_schedule_eh(ap);  in ata_scsi_lpm_store()
817 	spin_unlock_irqrestore(ap->lock, flags);  in ata_scsi_lpm_store()
825 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_lpm_show()  local
827 	if (ap->target_lpm_policy >= ARRAY_SIZE(ata_lpm_policy_names))  in ata_scsi_lpm_show()
831 			ata_lpm_policy_names[ap->target_lpm_policy]);  in ata_scsi_lpm_show()
842 	struct ata_port *ap;  in ata_ncq_prio_enable_show()  local
847 	ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_enable_show()
849 	spin_lock_irq(ap->lock);  in ata_ncq_prio_enable_show()
850 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_enable_show()
859 	spin_unlock_irq(ap->lock);  in ata_ncq_prio_enable_show()
869 	struct ata_port *ap;  in ata_ncq_prio_enable_store()  local
880 	ap = ata_shost_to_port(sdev->host);  in ata_ncq_prio_enable_store()
881 	dev = ata_scsi_find_dev(ap, sdev);  in ata_ncq_prio_enable_store()
885 	spin_lock_irq(ap->lock);  in ata_ncq_prio_enable_store()
893 	ata_port_schedule_eh(ap);  in ata_ncq_prio_enable_store()
894 	spin_unlock_irq(ap->lock);  in ata_ncq_prio_enable_store()
896 	ata_port_wait_eh(ap);  in ata_ncq_prio_enable_store()
899 		spin_lock_irq(ap->lock);  in ata_ncq_prio_enable_store()
904 		spin_unlock_irq(ap->lock);  in ata_ncq_prio_enable_store()
926 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_store()  local
927 	if (ap->ops->em_store && (ap->flags & ATA_FLAG_EM))  in ata_scsi_em_message_store()
928 		return ap->ops->em_store(ap, buf, count);  in ata_scsi_em_message_store()
937 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_show()  local
939 	if (ap->ops->em_show && (ap->flags & ATA_FLAG_EM))  in ata_scsi_em_message_show()
940 		return ap->ops->em_show(ap, buf);  in ata_scsi_em_message_show()
952 	struct ata_port *ap = ata_shost_to_port(shost);  in ata_scsi_em_message_type_show()  local
954 	return snprintf(buf, 23, "%d\n", ap->em_message_type);  in ata_scsi_em_message_type_show()
965 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_activity_show()  local
966 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);  in ata_scsi_activity_show()
968 	if (atadev && ap->ops->sw_activity_show &&  in ata_scsi_activity_show()
969 	    (ap->flags & ATA_FLAG_SW_ACTIVITY))  in ata_scsi_activity_show()
970 		return ap->ops->sw_activity_show(atadev, buf);  in ata_scsi_activity_show()
979 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_activity_store()  local
980 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);  in ata_scsi_activity_store()
984 	if (atadev && ap->ops->sw_activity_store &&  in ata_scsi_activity_store()
985 	    (ap->flags & ATA_FLAG_SW_ACTIVITY)) {  in ata_scsi_activity_store()
989 			rc = ap->ops->sw_activity_store(atadev, val);  in ata_scsi_activity_store()
1004  *	@ap: ATA port to which the device change the queue depth
1012 int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev,  in __ata_change_queue_depth()  argument
1021 	dev = ata_scsi_find_dev(ap, sdev);  in __ata_change_queue_depth()
1026 	spin_lock_irqsave(ap->lock, flags);  in __ata_change_queue_depth()
1032 	spin_unlock_irqrestore(ap->lock, flags);  in __ata_change_queue_depth()
1063 	struct ata_port *ap = ata_shost_to_port(sdev->host);  in ata_scsi_change_queue_depth()  local
1065 	return __ata_change_queue_depth(ap, sdev, queue_depth);  in ata_scsi_change_queue_depth()
1086 	struct ata_port *ap;  in ata_sas_port_alloc()  local
1088 	ap = ata_port_alloc(host);  in ata_sas_port_alloc()
1089 	if (!ap)  in ata_sas_port_alloc()
1092 	ap->port_no = 0;  in ata_sas_port_alloc()
1093 	ap->lock = &host->lock;  in ata_sas_port_alloc()
1094 	ap->pio_mask = port_info->pio_mask;  in ata_sas_port_alloc()
1095 	ap->mwdma_mask = port_info->mwdma_mask;  in ata_sas_port_alloc()
1096 	ap->udma_mask = port_info->udma_mask;  in ata_sas_port_alloc()
1097 	ap->flags |= port_info->flags;  in ata_sas_port_alloc()
1098 	ap->ops = port_info->port_ops;  in ata_sas_port_alloc()
1099 	ap->cbl = ATA_CBL_SATA;  in ata_sas_port_alloc()
1101 	return ap;  in ata_sas_port_alloc()
1107  *	@ap: Port to initialize
1117 int ata_sas_port_start(struct ata_port *ap)  in ata_sas_port_start()  argument
1123 	if (!ap->ops->error_handler)  in ata_sas_port_start()
1124 		ap->pflags &= ~ATA_PFLAG_FROZEN;  in ata_sas_port_start()
1131  *	@ap: Port to shut down
1139 void ata_sas_port_stop(struct ata_port *ap)  in ata_sas_port_stop()  argument
1146  * @ap: Port to probe
1151 void ata_sas_async_probe(struct ata_port *ap)  in ata_sas_async_probe()  argument
1153 	__ata_port_probe(ap);  in ata_sas_async_probe()
1157 int ata_sas_sync_probe(struct ata_port *ap)  in ata_sas_sync_probe()  argument
1159 	return ata_port_probe(ap);  in ata_sas_sync_probe()
1166  *	@ap: SATA port to initialize
1175 int ata_sas_port_init(struct ata_port *ap)  in ata_sas_port_init()  argument
1177 	int rc = ap->ops->port_start(ap);  in ata_sas_port_init()
1181 	ap->print_id = atomic_inc_return(&ata_print_id);  in ata_sas_port_init()
1186 int ata_sas_tport_add(struct device *parent, struct ata_port *ap)  in ata_sas_tport_add()  argument
1188 	return ata_tport_add(parent, ap);  in ata_sas_tport_add()
1192 void ata_sas_tport_delete(struct ata_port *ap)  in ata_sas_tport_delete()  argument
1194 	ata_tport_delete(ap);  in ata_sas_tport_delete()
1200  *	@ap: SATA port to destroy
1204 void ata_sas_port_destroy(struct ata_port *ap)  in ata_sas_port_destroy()  argument
1206 	if (ap->ops->port_stop)  in ata_sas_port_destroy()
1207 		ap->ops->port_stop(ap);  in ata_sas_port_destroy()
1208 	kfree(ap);  in ata_sas_port_destroy()
1215  *	@ap: ATA port to which SCSI device is attached
1221 int ata_sas_slave_configure(struct scsi_device *sdev, struct ata_port *ap)  in ata_sas_slave_configure()  argument
1224 	ata_scsi_dev_config(sdev, ap->link.device);  in ata_sas_slave_configure()
1232  *	@ap:	ATA port to which the command is being sent
1239 int ata_sas_queuecmd(struct scsi_cmnd *cmd, struct ata_port *ap)  in ata_sas_queuecmd()  argument
1243 	ata_scsi_dump_cdb(ap, cmd);  in ata_sas_queuecmd()
1245 	if (likely(ata_dev_enabled(ap->link.device)))  in ata_sas_queuecmd()
1246 		rc = __ata_scsi_queuecmd(cmd, ap->link.device);  in ata_sas_queuecmd()
1255 int ata_sas_allocate_tag(struct ata_port *ap)  in ata_sas_allocate_tag()  argument
1257 	unsigned int max_queue = ap->host->n_tags;  in ata_sas_allocate_tag()
1260 	for (i = 0, tag = ap->sas_last_tag + 1; i < max_queue; i++, tag++) {  in ata_sas_allocate_tag()
1267 		if (!test_and_set_bit(tag, &ap->sas_tag_allocated)) {  in ata_sas_allocate_tag()
1268 			ap->sas_last_tag = tag;  in ata_sas_allocate_tag()
1275 void ata_sas_free_tag(unsigned int tag, struct ata_port *ap)  in ata_sas_free_tag()  argument
1277 	clear_bit(tag, &ap->sas_tag_allocated);  in ata_sas_free_tag()
1282  *	@ap: ATA port where async notification is received
1293 int sata_async_notification(struct ata_port *ap)  in sata_async_notification()  argument
1298 	if (!(ap->flags & ATA_FLAG_AN))  in sata_async_notification()
1301 	rc = sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf);  in sata_async_notification()
1303 		sata_scr_write(&ap->link, SCR_NOTIFICATION, sntf);  in sata_async_notification()
1305 	if (!sata_pmp_attached(ap) || rc) {  in sata_async_notification()
1307 		if (!sata_pmp_attached(ap)) {  in sata_async_notification()
1312 			struct ata_device *dev = ap->link.device;  in sata_async_notification()
1324 			ata_port_schedule_eh(ap);  in sata_async_notification()
1332 		ata_for_each_link(link, ap, EDGE) {  in sata_async_notification()
1345 			ata_port_schedule_eh(ap);  in sata_async_notification()
1372 	u8 *buf = dev->link->ap->sector_buf;  in ata_eh_read_log_10h()
1424 	struct ata_port *ap = link->ap;  in ata_eh_analyze_ncq_error()  local
1432 	if (ap->pflags & ATA_PFLAG_FROZEN)  in ata_eh_analyze_ncq_error()
1440 	ata_qc_for_each_raw(ap, qc, tag) {  in ata_eh_analyze_ncq_error()
1464 	qc = __ata_qc_from_tag(ap, tag);  in ata_eh_analyze_ncq_error()