1 // SPDX-License-Identifier: GPL-2.0-only
3 * Aic94xx SAS/SATA DDB management
5 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
6 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
8 * $Id: //depot/aic94xx/aic94xx_dev.c#21 $
12 #include "aic94xx_hwi.h"
13 #include "aic94xx_reg.h"
14 #include "aic94xx_sas.h"
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)
21 static int asd_get_ddb(struct asd_ha_struct *asd_ha)
25 ddb = FIND_FREE_DDB(asd_ha);
26 if (ddb >= asd_ha->hw_prof.max_ddbs) {
32 for (i = 0; i < sizeof(struct asd_ddb_ssp_smp_target_port); i+= 4)
33 asd_ddbsite_write_dword(asd_ha, ddb, i, 0);
38 #define INIT_CONN_TAG offsetof(struct asd_ddb_ssp_smp_target_port, init_conn_tag)
39 #define DEST_SAS_ADDR offsetof(struct asd_ddb_ssp_smp_target_port, dest_sas_addr)
40 #define SEND_QUEUE_HEAD offsetof(struct asd_ddb_ssp_smp_target_port, send_queue_head)
41 #define DDB_TYPE offsetof(struct asd_ddb_ssp_smp_target_port, ddb_type)
42 #define CONN_MASK offsetof(struct asd_ddb_ssp_smp_target_port, conn_mask)
43 #define DDB_TARG_FLAGS offsetof(struct asd_ddb_ssp_smp_target_port, flags)
44 #define DDB_TARG_FLAGS2 offsetof(struct asd_ddb_stp_sata_target_port, flags2)
45 #define EXEC_QUEUE_TAIL offsetof(struct asd_ddb_ssp_smp_target_port, exec_queue_tail)
46 #define SEND_QUEUE_TAIL offsetof(struct asd_ddb_ssp_smp_target_port, send_queue_tail)
47 #define SISTER_DDB offsetof(struct asd_ddb_ssp_smp_target_port, sister_ddb)
48 #define MAX_CCONN offsetof(struct asd_ddb_ssp_smp_target_port, max_concurrent_conn)
49 #define NUM_CTX offsetof(struct asd_ddb_ssp_smp_target_port, num_contexts)
50 #define ATA_CMD_SCBPTR offsetof(struct asd_ddb_stp_sata_target_port, ata_cmd_scbptr)
51 #define SATA_TAG_ALLOC_MASK offsetof(struct asd_ddb_stp_sata_target_port, sata_tag_alloc_mask)
52 #define NUM_SATA_TAGS offsetof(struct asd_ddb_stp_sata_target_port, num_sata_tags)
53 #define SATA_STATUS offsetof(struct asd_ddb_stp_sata_target_port, sata_status)
54 #define NCQ_DATA_SCB_PTR offsetof(struct asd_ddb_stp_sata_target_port, ncq_data_scb_ptr)
55 #define ITNL_TIMEOUT offsetof(struct asd_ddb_ssp_smp_target_port, itnl_timeout)
57 static void asd_free_ddb(struct asd_ha_struct *asd_ha, int ddb)
59 if (!ddb || ddb >= 0xFFFF)
61 asd_ddbsite_write_byte(asd_ha, ddb, DDB_TYPE, DDB_TYPE_UNUSED);
62 CLEAR_DDB(ddb, asd_ha);
65 static void asd_set_ddb_type(struct domain_device *dev)
67 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
68 int ddb = (int) (unsigned long) dev->lldd_dev;
70 if (dev->dev_type == SAS_SATA_PM_PORT)
71 asd_ddbsite_write_byte(asd_ha,ddb, DDB_TYPE, DDB_TYPE_PM_PORT);
73 asd_ddbsite_write_byte(asd_ha,ddb, DDB_TYPE, DDB_TYPE_TARGET);
75 asd_ddbsite_write_byte(asd_ha,ddb,DDB_TYPE,DDB_TYPE_INITIATOR);
78 static int asd_init_sata_tag_ddb(struct domain_device *dev)
80 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
83 ddb = asd_get_ddb(asd_ha);
87 for (i = 0; i < sizeof(struct asd_ddb_sata_tag); i += 2)
88 asd_ddbsite_write_word(asd_ha, ddb, i, 0xFFFF);
90 asd_ddbsite_write_word(asd_ha, (int) (unsigned long) dev->lldd_dev,
95 void asd_set_dmamode(struct domain_device *dev)
97 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
98 struct ata_device *ata_dev = sas_to_ata_dev(dev);
99 int ddb = (int) (unsigned long) dev->lldd_dev;
102 if (dev->dev_type == SAS_SATA_DEV || dev->dev_type == SAS_SATA_PM_PORT) {
103 if (ata_id_has_ncq(ata_dev->id))
104 qdepth = ata_id_queue_depth(ata_dev->id);
105 asd_ddbsite_write_dword(asd_ha, ddb, SATA_TAG_ALLOC_MASK,
107 asd_ddbsite_write_byte(asd_ha, ddb, NUM_SATA_TAGS, qdepth);
111 if (asd_init_sata_tag_ddb(dev) != 0) {
114 spin_lock_irqsave(dev->sata_dev.ap->lock, flags);
115 ata_dev->flags |= ATA_DFLAG_NCQ_OFF;
116 spin_unlock_irqrestore(dev->sata_dev.ap->lock, flags);
120 static int asd_init_sata(struct domain_device *dev)
122 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
123 int ddb = (int) (unsigned long) dev->lldd_dev;
125 asd_ddbsite_write_word(asd_ha, ddb, ATA_CMD_SCBPTR, 0xFFFF);
126 if (dev->dev_type == SAS_SATA_DEV || dev->dev_type == SAS_SATA_PM ||
127 dev->dev_type == SAS_SATA_PM_PORT) {
128 struct dev_to_host_fis *fis = (struct dev_to_host_fis *)
130 asd_ddbsite_write_byte(asd_ha, ddb, SATA_STATUS, fis->status);
132 asd_ddbsite_write_word(asd_ha, ddb, NCQ_DATA_SCB_PTR, 0xFFFF);
137 static int asd_init_target_ddb(struct domain_device *dev)
140 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
143 ddb = asd_get_ddb(asd_ha);
147 dev->lldd_dev = (void *) (unsigned long) ddb;
149 asd_ddbsite_write_byte(asd_ha, ddb, 0, DDB_TP_CONN_TYPE);
150 asd_ddbsite_write_byte(asd_ha, ddb, 1, 0);
151 asd_ddbsite_write_word(asd_ha, ddb, INIT_CONN_TAG, 0xFFFF);
152 for (i = 0; i < SAS_ADDR_SIZE; i++)
153 asd_ddbsite_write_byte(asd_ha, ddb, DEST_SAS_ADDR+i,
155 asd_ddbsite_write_word(asd_ha, ddb, SEND_QUEUE_HEAD, 0xFFFF);
156 asd_set_ddb_type(dev);
157 asd_ddbsite_write_byte(asd_ha, ddb, CONN_MASK, dev->port->phy_mask);
158 if (dev->port->oob_mode != SATA_OOB_MODE) {
159 flags |= OPEN_REQUIRED;
160 if ((dev->dev_type == SAS_SATA_DEV) ||
161 (dev->tproto & SAS_PROTOCOL_STP)) {
162 struct smp_resp *rps_resp = &dev->sata_dev.rps_resp;
163 if (rps_resp->frame_type == SMP_RESPONSE &&
164 rps_resp->function == SMP_REPORT_PHY_SATA &&
165 rps_resp->result == SMP_RESP_FUNC_ACC) {
166 if (rps_resp->rps.affil_valid)
167 flags |= STP_AFFIL_POL;
168 if (rps_resp->rps.affil_supp)
169 flags |= SUPPORTS_AFFIL;
172 flags |= CONCURRENT_CONN_SUPP;
174 (dev->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
175 dev->dev_type == SAS_FANOUT_EXPANDER_DEVICE))
176 asd_ddbsite_write_byte(asd_ha, ddb, MAX_CCONN,
179 asd_ddbsite_write_byte(asd_ha, ddb, MAX_CCONN,
181 asd_ddbsite_write_byte(asd_ha, ddb, NUM_CTX, 1);
184 if (dev->dev_type == SAS_SATA_PM)
185 flags |= SATA_MULTIPORT;
186 asd_ddbsite_write_byte(asd_ha, ddb, DDB_TARG_FLAGS, flags);
189 if (dev->tproto & SAS_PROTOCOL_STP)
190 flags |= STP_CL_POL_NO_TX;
191 asd_ddbsite_write_byte(asd_ha, ddb, DDB_TARG_FLAGS2, flags);
193 asd_ddbsite_write_word(asd_ha, ddb, EXEC_QUEUE_TAIL, 0xFFFF);
194 asd_ddbsite_write_word(asd_ha, ddb, SEND_QUEUE_TAIL, 0xFFFF);
195 asd_ddbsite_write_word(asd_ha, ddb, SISTER_DDB, 0xFFFF);
197 if (dev->dev_type == SAS_SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {
198 i = asd_init_sata(dev);
200 asd_free_ddb(asd_ha, ddb);
205 if (dev->dev_type == SAS_END_DEVICE) {
206 struct sas_end_device *rdev = rphy_to_end_device(dev->rphy);
207 if (rdev->I_T_nexus_loss_timeout > 0)
208 asd_ddbsite_write_word(asd_ha, ddb, ITNL_TIMEOUT,
209 min(rdev->I_T_nexus_loss_timeout,
210 (u16)ITNL_TIMEOUT_CONST));
212 asd_ddbsite_write_word(asd_ha, ddb, ITNL_TIMEOUT,
213 (u16)ITNL_TIMEOUT_CONST);
218 static int asd_init_sata_pm_table_ddb(struct domain_device *dev)
220 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
223 ddb = asd_get_ddb(asd_ha);
227 for (i = 0; i < 32; i += 2)
228 asd_ddbsite_write_word(asd_ha, ddb, i, 0xFFFF);
230 asd_ddbsite_write_word(asd_ha, (int) (unsigned long) dev->lldd_dev,
236 #define PM_PORT_FLAGS offsetof(struct asd_ddb_sata_pm_port, pm_port_flags)
237 #define PARENT_DDB offsetof(struct asd_ddb_sata_pm_port, parent_ddb)
240 * asd_init_sata_pm_port_ddb -- SATA Port Multiplier Port
241 * dev: pointer to domain device
243 * For SATA Port Multiplier Ports we need to allocate one SATA Port
244 * Multiplier Port DDB and depending on whether the target on it
245 * supports SATA II NCQ, one SATA Tag DDB.
247 static int asd_init_sata_pm_port_ddb(struct domain_device *dev)
249 int ddb, i, parent_ddb, pmtable_ddb;
250 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
253 ddb = asd_get_ddb(asd_ha);
257 asd_set_ddb_type(dev);
258 flags = (dev->sata_dev.port_no << 4) | PM_PORT_SET;
259 asd_ddbsite_write_byte(asd_ha, ddb, PM_PORT_FLAGS, flags);
260 asd_ddbsite_write_word(asd_ha, ddb, SISTER_DDB, 0xFFFF);
261 asd_ddbsite_write_word(asd_ha, ddb, ATA_CMD_SCBPTR, 0xFFFF);
264 parent_ddb = (int) (unsigned long) dev->parent->lldd_dev;
265 asd_ddbsite_write_word(asd_ha, ddb, PARENT_DDB, parent_ddb);
266 pmtable_ddb = asd_ddbsite_read_word(asd_ha, parent_ddb, SISTER_DDB);
267 asd_ddbsite_write_word(asd_ha, pmtable_ddb, dev->sata_dev.port_no,ddb);
269 if (asd_ddbsite_read_byte(asd_ha, ddb, NUM_SATA_TAGS) > 0) {
270 i = asd_init_sata_tag_ddb(dev);
272 asd_free_ddb(asd_ha, ddb);
279 static int asd_init_initiator_ddb(struct domain_device *dev)
285 * asd_init_sata_pm_ddb -- SATA Port Multiplier
286 * dev: pointer to domain device
288 * For STP and direct-attached SATA Port Multipliers we need
289 * one target port DDB entry and one SATA PM table DDB entry.
291 static int asd_init_sata_pm_ddb(struct domain_device *dev)
295 res = asd_init_target_ddb(dev);
298 res = asd_init_sata_pm_table_ddb(dev);
300 asd_free_ddb(dev->port->ha->lldd_ha,
301 (int) (unsigned long) dev->lldd_dev);
306 int asd_dev_found(struct domain_device *dev)
310 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
312 spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);
313 switch (dev->dev_type) {
315 res = asd_init_sata_pm_ddb(dev);
317 case SAS_SATA_PM_PORT:
318 res = asd_init_sata_pm_port_ddb(dev);
322 res = asd_init_target_ddb(dev);
324 res = asd_init_initiator_ddb(dev);
326 spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);
331 void asd_dev_gone(struct domain_device *dev)
335 struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
337 spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);
338 ddb = (int) (unsigned long) dev->lldd_dev;
339 sister_ddb = asd_ddbsite_read_word(asd_ha, ddb, SISTER_DDB);
341 if (sister_ddb != 0xFFFF)
342 asd_free_ddb(asd_ha, sister_ddb);
343 asd_free_ddb(asd_ha, ddb);
344 dev->lldd_dev = NULL;
345 spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);