354 lines
11 KiB
C
354 lines
11 KiB
C
/*
|
|
* Aic94xx SAS/SATA DDB management
|
|
*
|
|
* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
|
|
* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
|
|
*
|
|
* This file is licensed under GPLv2.
|
|
*
|
|
* This file is part of the aic94xx driver.
|
|
*
|
|
* The aic94xx driver is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; version 2 of the
|
|
* License.
|
|
*
|
|
* The aic94xx driver is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with the aic94xx driver; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
* $Id: //depot/aic94xx/aic94xx_dev.c#21 $
|
|
*/
|
|
|
|
#include "aic94xx.h"
|
|
#include "aic94xx_hwi.h"
|
|
#include "aic94xx_reg.h"
|
|
#include "aic94xx_sas.h"
|
|
|
|
#define FIND_FREE_DDB(_ha) find_first_zero_bit((_ha)->hw_prof.ddb_bitmap, \
|
|
(_ha)->hw_prof.max_ddbs)
|
|
#define SET_DDB(_ddb, _ha) set_bit(_ddb, (_ha)->hw_prof.ddb_bitmap)
|
|
#define CLEAR_DDB(_ddb, _ha) clear_bit(_ddb, (_ha)->hw_prof.ddb_bitmap)
|
|
|
|
static inline int asd_get_ddb(struct asd_ha_struct *asd_ha)
|
|
{
|
|
int ddb, i;
|
|
|
|
ddb = FIND_FREE_DDB(asd_ha);
|
|
if (ddb >= asd_ha->hw_prof.max_ddbs) {
|
|
ddb = -ENOMEM;
|
|
goto out;
|
|
}
|
|
SET_DDB(ddb, asd_ha);
|
|
|
|
for (i = 0; i < sizeof(struct asd_ddb_ssp_smp_target_port); i+= 4)
|
|
asd_ddbsite_write_dword(asd_ha, ddb, i, 0);
|
|
out:
|
|
return ddb;
|
|
}
|
|
|
|
#define INIT_CONN_TAG offsetof(struct asd_ddb_ssp_smp_target_port, init_conn_tag)
|
|
#define DEST_SAS_ADDR offsetof(struct asd_ddb_ssp_smp_target_port, dest_sas_addr)
|
|
#define SEND_QUEUE_HEAD offsetof(struct asd_ddb_ssp_smp_target_port, send_queue_head)
|
|
#define DDB_TYPE offsetof(struct asd_ddb_ssp_smp_target_port, ddb_type)
|
|
#define CONN_MASK offsetof(struct asd_ddb_ssp_smp_target_port, conn_mask)
|
|
#define DDB_TARG_FLAGS offsetof(struct asd_ddb_ssp_smp_target_port, flags)
|
|
#define DDB_TARG_FLAGS2 offsetof(struct asd_ddb_stp_sata_target_port, flags2)
|
|
#define EXEC_QUEUE_TAIL offsetof(struct asd_ddb_ssp_smp_target_port, exec_queue_tail)
|
|
#define SEND_QUEUE_TAIL offsetof(struct asd_ddb_ssp_smp_target_port, send_queue_tail)
|
|
#define SISTER_DDB offsetof(struct asd_ddb_ssp_smp_target_port, sister_ddb)
|
|
#define MAX_CCONN offsetof(struct asd_ddb_ssp_smp_target_port, max_concurrent_conn)
|
|
#define NUM_CTX offsetof(struct asd_ddb_ssp_smp_target_port, num_contexts)
|
|
#define ATA_CMD_SCBPTR offsetof(struct asd_ddb_stp_sata_target_port, ata_cmd_scbptr)
|
|
#define SATA_TAG_ALLOC_MASK offsetof(struct asd_ddb_stp_sata_target_port, sata_tag_alloc_mask)
|
|
#define NUM_SATA_TAGS offsetof(struct asd_ddb_stp_sata_target_port, num_sata_tags)
|
|
#define SATA_STATUS offsetof(struct asd_ddb_stp_sata_target_port, sata_status)
|
|
#define NCQ_DATA_SCB_PTR offsetof(struct asd_ddb_stp_sata_target_port, ncq_data_scb_ptr)
|
|
#define ITNL_TIMEOUT offsetof(struct asd_ddb_ssp_smp_target_port, itnl_timeout)
|
|
|
|
static inline void asd_free_ddb(struct asd_ha_struct *asd_ha, int ddb)
|
|
{
|
|
if (!ddb || ddb >= 0xFFFF)
|
|
return;
|
|
asd_ddbsite_write_byte(asd_ha, ddb, DDB_TYPE, DDB_TYPE_UNUSED);
|
|
CLEAR_DDB(ddb, asd_ha);
|
|
}
|
|
|
|
static inline void asd_set_ddb_type(struct domain_device *dev)
|
|
{
|
|
struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
|
|
int ddb = (int) (unsigned long) dev->lldd_dev;
|
|
|
|
if (dev->dev_type == SATA_PM_PORT)
|
|
asd_ddbsite_write_byte(asd_ha,ddb, DDB_TYPE, DDB_TYPE_PM_PORT);
|
|
else if (dev->tproto)
|
|
asd_ddbsite_write_byte(asd_ha,ddb, DDB_TYPE, DDB_TYPE_TARGET);
|
|
else
|
|
asd_ddbsite_write_byte(asd_ha,ddb,DDB_TYPE,DDB_TYPE_INITIATOR);
|
|
}
|
|
|
|
static int asd_init_sata_tag_ddb(struct domain_device *dev)
|
|
{
|
|
struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
|
|
int ddb, i;
|
|
|
|
ddb = asd_get_ddb(asd_ha);
|
|
if (ddb < 0)
|
|
return ddb;
|
|
|
|
for (i = 0; i < sizeof(struct asd_ddb_sata_tag); i += 2)
|
|
asd_ddbsite_write_word(asd_ha, ddb, i, 0xFFFF);
|
|
|
|
asd_ddbsite_write_word(asd_ha, (int) (unsigned long) dev->lldd_dev,
|
|
SISTER_DDB, ddb);
|
|
return 0;
|
|
}
|
|
|
|
static inline int asd_init_sata(struct domain_device *dev)
|
|
{
|
|
struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
|
|
int ddb = (int) (unsigned long) dev->lldd_dev;
|
|
u32 qdepth = 0;
|
|
int res = 0;
|
|
|
|
asd_ddbsite_write_word(asd_ha, ddb, ATA_CMD_SCBPTR, 0xFFFF);
|
|
if ((dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM_PORT) &&
|
|
dev->sata_dev.identify_device &&
|
|
dev->sata_dev.identify_device[10] != 0) {
|
|
u16 w75 = le16_to_cpu(dev->sata_dev.identify_device[75]);
|
|
u16 w76 = le16_to_cpu(dev->sata_dev.identify_device[76]);
|
|
|
|
if (w76 & 0x100) /* NCQ? */
|
|
qdepth = (w75 & 0x1F) + 1;
|
|
asd_ddbsite_write_dword(asd_ha, ddb, SATA_TAG_ALLOC_MASK,
|
|
(1ULL<<qdepth)-1);
|
|
asd_ddbsite_write_byte(asd_ha, ddb, NUM_SATA_TAGS, qdepth);
|
|
}
|
|
if (dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM ||
|
|
dev->dev_type == SATA_PM_PORT) {
|
|
struct dev_to_host_fis *fis = (struct dev_to_host_fis *)
|
|
dev->frame_rcvd;
|
|
asd_ddbsite_write_byte(asd_ha, ddb, SATA_STATUS, fis->status);
|
|
}
|
|
asd_ddbsite_write_word(asd_ha, ddb, NCQ_DATA_SCB_PTR, 0xFFFF);
|
|
if (qdepth > 0)
|
|
res = asd_init_sata_tag_ddb(dev);
|
|
return res;
|
|
}
|
|
|
|
static int asd_init_target_ddb(struct domain_device *dev)
|
|
{
|
|
int ddb, i;
|
|
struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
|
|
u8 flags = 0;
|
|
|
|
ddb = asd_get_ddb(asd_ha);
|
|
if (ddb < 0)
|
|
return ddb;
|
|
|
|
dev->lldd_dev = (void *) (unsigned long) ddb;
|
|
|
|
asd_ddbsite_write_byte(asd_ha, ddb, 0, DDB_TP_CONN_TYPE);
|
|
asd_ddbsite_write_byte(asd_ha, ddb, 1, 0);
|
|
asd_ddbsite_write_word(asd_ha, ddb, INIT_CONN_TAG, 0xFFFF);
|
|
for (i = 0; i < SAS_ADDR_SIZE; i++)
|
|
asd_ddbsite_write_byte(asd_ha, ddb, DEST_SAS_ADDR+i,
|
|
dev->sas_addr[i]);
|
|
asd_ddbsite_write_word(asd_ha, ddb, SEND_QUEUE_HEAD, 0xFFFF);
|
|
asd_set_ddb_type(dev);
|
|
asd_ddbsite_write_byte(asd_ha, ddb, CONN_MASK, dev->port->phy_mask);
|
|
if (dev->port->oob_mode != SATA_OOB_MODE) {
|
|
flags |= OPEN_REQUIRED;
|
|
if ((dev->dev_type == SATA_DEV) ||
|
|
(dev->tproto & SAS_PROTOCOL_STP)) {
|
|
struct smp_resp *rps_resp = &dev->sata_dev.rps_resp;
|
|
if (rps_resp->frame_type == SMP_RESPONSE &&
|
|
rps_resp->function == SMP_REPORT_PHY_SATA &&
|
|
rps_resp->result == SMP_RESP_FUNC_ACC) {
|
|
if (rps_resp->rps.affil_valid)
|
|
flags |= STP_AFFIL_POL;
|
|
if (rps_resp->rps.affil_supp)
|
|
flags |= SUPPORTS_AFFIL;
|
|
}
|
|
} else {
|
|
flags |= CONCURRENT_CONN_SUPP;
|
|
if (!dev->parent &&
|
|
(dev->dev_type == EDGE_DEV ||
|
|
dev->dev_type == FANOUT_DEV))
|
|
asd_ddbsite_write_byte(asd_ha, ddb, MAX_CCONN,
|
|
4);
|
|
else
|
|
asd_ddbsite_write_byte(asd_ha, ddb, MAX_CCONN,
|
|
dev->pathways);
|
|
asd_ddbsite_write_byte(asd_ha, ddb, NUM_CTX, 1);
|
|
}
|
|
}
|
|
if (dev->dev_type == SATA_PM)
|
|
flags |= SATA_MULTIPORT;
|
|
asd_ddbsite_write_byte(asd_ha, ddb, DDB_TARG_FLAGS, flags);
|
|
|
|
flags = 0;
|
|
if (dev->tproto & SAS_PROTOCOL_STP)
|
|
flags |= STP_CL_POL_NO_TX;
|
|
asd_ddbsite_write_byte(asd_ha, ddb, DDB_TARG_FLAGS2, flags);
|
|
|
|
asd_ddbsite_write_word(asd_ha, ddb, EXEC_QUEUE_TAIL, 0xFFFF);
|
|
asd_ddbsite_write_word(asd_ha, ddb, SEND_QUEUE_TAIL, 0xFFFF);
|
|
asd_ddbsite_write_word(asd_ha, ddb, SISTER_DDB, 0xFFFF);
|
|
|
|
if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {
|
|
i = asd_init_sata(dev);
|
|
if (i < 0) {
|
|
asd_free_ddb(asd_ha, ddb);
|
|
return i;
|
|
}
|
|
}
|
|
|
|
if (dev->dev_type == SAS_END_DEV) {
|
|
struct sas_end_device *rdev = rphy_to_end_device(dev->rphy);
|
|
if (rdev->I_T_nexus_loss_timeout > 0)
|
|
asd_ddbsite_write_word(asd_ha, ddb, ITNL_TIMEOUT,
|
|
min(rdev->I_T_nexus_loss_timeout,
|
|
(u16)ITNL_TIMEOUT_CONST));
|
|
else
|
|
asd_ddbsite_write_word(asd_ha, ddb, ITNL_TIMEOUT,
|
|
(u16)ITNL_TIMEOUT_CONST);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int asd_init_sata_pm_table_ddb(struct domain_device *dev)
|
|
{
|
|
struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
|
|
int ddb, i;
|
|
|
|
ddb = asd_get_ddb(asd_ha);
|
|
if (ddb < 0)
|
|
return ddb;
|
|
|
|
for (i = 0; i < 32; i += 2)
|
|
asd_ddbsite_write_word(asd_ha, ddb, i, 0xFFFF);
|
|
|
|
asd_ddbsite_write_word(asd_ha, (int) (unsigned long) dev->lldd_dev,
|
|
SISTER_DDB, ddb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define PM_PORT_FLAGS offsetof(struct asd_ddb_sata_pm_port, pm_port_flags)
|
|
#define PARENT_DDB offsetof(struct asd_ddb_sata_pm_port, parent_ddb)
|
|
|
|
/**
|
|
* asd_init_sata_pm_port_ddb -- SATA Port Multiplier Port
|
|
* dev: pointer to domain device
|
|
*
|
|
* For SATA Port Multiplier Ports we need to allocate one SATA Port
|
|
* Multiplier Port DDB and depending on whether the target on it
|
|
* supports SATA II NCQ, one SATA Tag DDB.
|
|
*/
|
|
static int asd_init_sata_pm_port_ddb(struct domain_device *dev)
|
|
{
|
|
int ddb, i, parent_ddb, pmtable_ddb;
|
|
struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
|
|
u8 flags;
|
|
|
|
ddb = asd_get_ddb(asd_ha);
|
|
if (ddb < 0)
|
|
return ddb;
|
|
|
|
asd_set_ddb_type(dev);
|
|
flags = (dev->sata_dev.port_no << 4) | PM_PORT_SET;
|
|
asd_ddbsite_write_byte(asd_ha, ddb, PM_PORT_FLAGS, flags);
|
|
asd_ddbsite_write_word(asd_ha, ddb, SISTER_DDB, 0xFFFF);
|
|
asd_ddbsite_write_word(asd_ha, ddb, ATA_CMD_SCBPTR, 0xFFFF);
|
|
asd_init_sata(dev);
|
|
|
|
parent_ddb = (int) (unsigned long) dev->parent->lldd_dev;
|
|
asd_ddbsite_write_word(asd_ha, ddb, PARENT_DDB, parent_ddb);
|
|
pmtable_ddb = asd_ddbsite_read_word(asd_ha, parent_ddb, SISTER_DDB);
|
|
asd_ddbsite_write_word(asd_ha, pmtable_ddb, dev->sata_dev.port_no,ddb);
|
|
|
|
if (asd_ddbsite_read_byte(asd_ha, ddb, NUM_SATA_TAGS) > 0) {
|
|
i = asd_init_sata_tag_ddb(dev);
|
|
if (i < 0) {
|
|
asd_free_ddb(asd_ha, ddb);
|
|
return i;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int asd_init_initiator_ddb(struct domain_device *dev)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
/**
|
|
* asd_init_sata_pm_ddb -- SATA Port Multiplier
|
|
* dev: pointer to domain device
|
|
*
|
|
* For STP and direct-attached SATA Port Multipliers we need
|
|
* one target port DDB entry and one SATA PM table DDB entry.
|
|
*/
|
|
static int asd_init_sata_pm_ddb(struct domain_device *dev)
|
|
{
|
|
int res = 0;
|
|
|
|
res = asd_init_target_ddb(dev);
|
|
if (res)
|
|
goto out;
|
|
res = asd_init_sata_pm_table_ddb(dev);
|
|
if (res)
|
|
asd_free_ddb(dev->port->ha->lldd_ha,
|
|
(int) (unsigned long) dev->lldd_dev);
|
|
out:
|
|
return res;
|
|
}
|
|
|
|
int asd_dev_found(struct domain_device *dev)
|
|
{
|
|
unsigned long flags;
|
|
int res = 0;
|
|
struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
|
|
|
|
spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);
|
|
switch (dev->dev_type) {
|
|
case SATA_PM:
|
|
res = asd_init_sata_pm_ddb(dev);
|
|
break;
|
|
case SATA_PM_PORT:
|
|
res = asd_init_sata_pm_port_ddb(dev);
|
|
break;
|
|
default:
|
|
if (dev->tproto)
|
|
res = asd_init_target_ddb(dev);
|
|
else
|
|
res = asd_init_initiator_ddb(dev);
|
|
}
|
|
spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);
|
|
|
|
return res;
|
|
}
|
|
|
|
void asd_dev_gone(struct domain_device *dev)
|
|
{
|
|
int ddb, sister_ddb;
|
|
unsigned long flags;
|
|
struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
|
|
|
|
spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);
|
|
ddb = (int) (unsigned long) dev->lldd_dev;
|
|
sister_ddb = asd_ddbsite_read_word(asd_ha, ddb, SISTER_DDB);
|
|
|
|
if (sister_ddb != 0xFFFF)
|
|
asd_free_ddb(asd_ha, sister_ddb);
|
|
asd_free_ddb(asd_ha, ddb);
|
|
dev->lldd_dev = NULL;
|
|
spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);
|
|
}
|