1 // SPDX-License-Identifier: GPL-2.0-only
3  * Aic94xx SAS/SATA DDB management
16 #define FIND_FREE_DDB(_ha) find_first_zero_bit((_ha)->hw_prof.ddb_bitmap, \
17 					       (_ha)->hw_prof.max_ddbs)
18 #define SET_DDB(_ddb, _ha) set_bit(_ddb, (_ha)->hw_prof.ddb_bitmap)
19 #define CLEAR_DDB(_ddb, _ha) clear_bit(_ddb, (_ha)->hw_prof.ddb_bitmap)
26 	if (ddb >= asd_ha->hw_prof.max_ddbs) {  in asd_get_ddb()
27 		ddb = -ENOMEM;  in asd_get_ddb()
67 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_set_ddb_type()
68 	int ddb = (int) (unsigned long) dev->lldd_dev;  in asd_set_ddb_type()
70 	if (dev->dev_type == SAS_SATA_PM_PORT)  in asd_set_ddb_type()
72 	else if (dev->tproto)  in asd_set_ddb_type()
80 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_init_sata_tag_ddb()
90 	asd_ddbsite_write_word(asd_ha, (int) (unsigned long) dev->lldd_dev,  in asd_init_sata_tag_ddb()
97 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_set_dmamode()
99 	int ddb = (int) (unsigned long) dev->lldd_dev;  in asd_set_dmamode()
102 	if (dev->dev_type == SAS_SATA_DEV || dev->dev_type == SAS_SATA_PM_PORT) {  in asd_set_dmamode()
103 		if (ata_id_has_ncq(ata_dev->id))  in asd_set_dmamode()
104 			qdepth = ata_id_queue_depth(ata_dev->id);  in asd_set_dmamode()
106 					(1ULL<<qdepth)-1);  in asd_set_dmamode()
114 			spin_lock_irqsave(dev->sata_dev.ap->lock, flags);  in asd_set_dmamode()
115 			ata_dev->flags |= ATA_DFLAG_NCQ_OFF;  in asd_set_dmamode()
116 			spin_unlock_irqrestore(dev->sata_dev.ap->lock, flags);  in asd_set_dmamode()
122 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_init_sata()
123 	int ddb = (int) (unsigned long) dev->lldd_dev;  in asd_init_sata()
126 	if (dev->dev_type == SAS_SATA_DEV || dev->dev_type == SAS_SATA_PM ||  in asd_init_sata()
127 	    dev->dev_type == SAS_SATA_PM_PORT) {  in asd_init_sata()
129 			dev->frame_rcvd;  in asd_init_sata()
130 		asd_ddbsite_write_byte(asd_ha, ddb, SATA_STATUS, fis->status);  in asd_init_sata()
140 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_init_target_ddb()
147 	dev->lldd_dev = (void *) (unsigned long) ddb;  in asd_init_target_ddb()
154 				       dev->sas_addr[i]);  in asd_init_target_ddb()
157 	asd_ddbsite_write_byte(asd_ha, ddb, CONN_MASK, dev->port->phy_mask);  in asd_init_target_ddb()
158 	if (dev->port->oob_mode != SATA_OOB_MODE) {  in asd_init_target_ddb()
160 		if ((dev->dev_type == SAS_SATA_DEV) ||  in asd_init_target_ddb()
161 		    (dev->tproto & SAS_PROTOCOL_STP)) {  in asd_init_target_ddb()
162 			struct smp_rps_resp *rps_resp = &dev->sata_dev.rps_resp;  in asd_init_target_ddb()
163 			if (rps_resp->frame_type == SMP_RESPONSE &&  in asd_init_target_ddb()
164 			    rps_resp->function == SMP_REPORT_PHY_SATA &&  in asd_init_target_ddb()
165 			    rps_resp->result == SMP_RESP_FUNC_ACC) {  in asd_init_target_ddb()
166 				if (rps_resp->rps.affil_valid)  in asd_init_target_ddb()
168 				if (rps_resp->rps.affil_supp)  in asd_init_target_ddb()
173 			if (!dev->parent && dev_is_expander(dev->dev_type))  in asd_init_target_ddb()
178 						       dev->pathways);  in asd_init_target_ddb()
182 	if (dev->dev_type == SAS_SATA_PM)  in asd_init_target_ddb()
187 	if (dev->tproto & SAS_PROTOCOL_STP)  in asd_init_target_ddb()
195 	if (dev->dev_type == SAS_SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {  in asd_init_target_ddb()
203 	if (dev->dev_type == SAS_END_DEVICE) {  in asd_init_target_ddb()
204 		struct sas_end_device *rdev = rphy_to_end_device(dev->rphy);  in asd_init_target_ddb()
205 		if (rdev->I_T_nexus_loss_timeout > 0)  in asd_init_target_ddb()
207 					       min(rdev->I_T_nexus_loss_timeout,  in asd_init_target_ddb()
218 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_init_sata_pm_table_ddb()
228 	asd_ddbsite_write_word(asd_ha, (int) (unsigned long) dev->lldd_dev,  in asd_init_sata_pm_table_ddb()
238  * asd_init_sata_pm_port_ddb -- SATA Port Multiplier Port
241  * For SATA Port Multiplier Ports we need to allocate one SATA Port
242  * Multiplier Port DDB and depending on whether the target on it
243  * supports SATA II NCQ, one SATA Tag DDB.
248 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_init_sata_pm_port_ddb()
256 	flags = (dev->sata_dev.port_no << 4) | PM_PORT_SET;  in asd_init_sata_pm_port_ddb()
262 	parent_ddb = (int) (unsigned long) dev->parent->lldd_dev;  in asd_init_sata_pm_port_ddb()
265 	asd_ddbsite_write_word(asd_ha, pmtable_ddb, dev->sata_dev.port_no,ddb);  in asd_init_sata_pm_port_ddb()
279 	return -ENODEV;  in asd_init_initiator_ddb()
283  * asd_init_sata_pm_ddb -- SATA Port Multiplier
286  * For STP and direct-attached SATA Port Multipliers we need
287  * one target port DDB entry and one SATA PM table DDB entry.
298 		asd_free_ddb(dev->port->ha->lldd_ha,  in asd_init_sata_pm_ddb()
299 			     (int) (unsigned long) dev->lldd_dev);  in asd_init_sata_pm_ddb()
308 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_dev_found()
310 	spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);  in asd_dev_found()
311 	switch (dev->dev_type) {  in asd_dev_found()
319 		if (dev->tproto)  in asd_dev_found()
324 	spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);  in asd_dev_found()
333 	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;  in asd_dev_gone()
335 	spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);  in asd_dev_gone()
336 	ddb = (int) (unsigned long) dev->lldd_dev;  in asd_dev_gone()
342 	dev->lldd_dev = NULL;  in asd_dev_gone()
343 	spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);  in asd_dev_gone()