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Commit 65a15d65 authored by Brian King's avatar Brian King Committed by Martin K. Petersen
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scsi: ipr: Remove SATA support 

Linux SATA support in ipr has always been limited to SATA DVDs. The last
systems that had the option of including a SATA DVD was Power 8, which have
been withdrawn for some time now, so this support can be removed.
Signed-off-by: default avatarBrian King <brking@linux.vnet.ibm.com>
Link: https://lore.kernel.org/r/20230412174015.114764-1-brking@linux.vnet.ibm.comReviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
Reviewed-by: default avatarJohn Garry <john.g.garry@oracle.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 0c028b6a
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Showing with 11 additions and 830 deletions
drivers/scsi/Kconfig
View file @ 65a15d65
......@@ -971,8 +971,7 @@ config SCSI_SYM53C8XX_MMIO
config SCSI_IPR
tristate "IBM Power Linux RAID adapter support"
depends on PCI && SCSI && ATA
select SATA_HOST
depends on PCI && SCSI
select FW_LOADER
select IRQ_POLL
select SGL_ALLOC
......
drivers/scsi/ipr.c
View file @ 65a15d65
......@@ -58,7 +58,6 @@
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/libata.h>
#include <linux/hdreg.h>
#include <linux/reboot.h>
#include <linux/stringify.h>
......@@ -595,10 +594,6 @@ static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
trace_entry->time = jiffies;
trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
trace_entry->type = type;
if (ipr_cmd->ioa_cfg->sis64)
trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
else
trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
trace_entry->u.add_data = add_data;
......@@ -636,7 +631,6 @@ static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
{
struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
dma_addr_t dma_addr = ipr_cmd->dma_addr;
int hrrq_id;
......@@ -651,18 +645,15 @@ static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
if (ipr_cmd->ioa_cfg->sis64) {
ioarcb->u.sis64_addr_data.data_ioadl_addr =
cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
ioasa64->u.gata.status = 0;
} else {
ioarcb->write_ioadl_addr =
cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
ioasa->u.gata.status = 0;
}
ioasa->hdr.ioasc = 0;
ioasa->hdr.residual_data_len = 0;
ipr_cmd->scsi_cmd = NULL;
ipr_cmd->qc = NULL;
ipr_cmd->sense_buffer[0] = 0;
ipr_cmd->dma_use_sg = 0;
}
......@@ -806,48 +797,6 @@ static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
return 0;
}
/**
* __ipr_sata_eh_done - done function for aborted SATA commands
* @ipr_cmd: ipr command struct
*
* This function is invoked for ops generated to SATA
* devices which are being aborted.
*
* Return value:
* none
**/
static void __ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
{
struct ata_queued_cmd *qc = ipr_cmd->qc;
struct ipr_sata_port *sata_port = qc->ap->private_data;
qc->err_mask |= AC_ERR_OTHER;
sata_port->ioasa.status |= ATA_BUSY;
ata_qc_complete(qc);
if (ipr_cmd->eh_comp)
complete(ipr_cmd->eh_comp);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
}
/**
* ipr_sata_eh_done - done function for aborted SATA commands
* @ipr_cmd: ipr command struct
*
* This function is invoked for ops generated to SATA
* devices which are being aborted.
*
* Return value:
* none
**/
static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
{
struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
unsigned long hrrq_flags;
spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
__ipr_sata_eh_done(ipr_cmd);
spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
}
/**
* __ipr_scsi_eh_done - mid-layer done function for aborted ops
......@@ -920,8 +869,6 @@ static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
if (ipr_cmd->scsi_cmd)
ipr_cmd->done = __ipr_scsi_eh_done;
else if (ipr_cmd->qc)
ipr_cmd->done = __ipr_sata_eh_done;
ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
IPR_IOASC_IOA_WAS_RESET);
......@@ -1142,31 +1089,6 @@ static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
}
}
/**
* ipr_update_ata_class - Update the ata class in the resource entry
* @res: resource entry struct
* @proto: cfgte device bus protocol value
*
* Return value:
* none
**/
static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
{
switch (proto) {
case IPR_PROTO_SATA:
case IPR_PROTO_SAS_STP:
res->ata_class = ATA_DEV_ATA;
break;
case IPR_PROTO_SATA_ATAPI:
case IPR_PROTO_SAS_STP_ATAPI:
res->ata_class = ATA_DEV_ATAPI;
break;
default:
res->ata_class = ATA_DEV_UNKNOWN;
break;
}
}
/**
* ipr_init_res_entry - Initialize a resource entry struct.
* @res: resource entry struct
......@@ -1190,7 +1112,6 @@ static void ipr_init_res_entry(struct ipr_resource_entry *res,
res->resetting_device = 0;
res->reset_occurred = 0;
res->sdev = NULL;
res->sata_port = NULL;
if (ioa_cfg->sis64) {
proto = cfgtew->u.cfgte64->proto;
......@@ -1252,8 +1173,6 @@ static void ipr_init_res_entry(struct ipr_resource_entry *res,
res->lun = cfgtew->u.cfgte->res_addr.lun;
res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
}
ipr_update_ata_class(res, proto);
}
/**
......@@ -1383,8 +1302,6 @@ static void ipr_update_res_entry(struct ipr_resource_entry *res,
proto = cfgtew->u.cfgte->proto;
res->res_handle = cfgtew->u.cfgte->res_handle;
}
ipr_update_ata_class(res, proto);
}
/**
......@@ -4502,9 +4419,6 @@ static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
res = (struct ipr_resource_entry *)sdev->hostdata;
if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
qdepth = IPR_MAX_CMD_PER_ATA_LUN;
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
scsi_change_queue_depth(sdev, qdepth);
......@@ -4799,68 +4713,13 @@ static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
return NULL;
}
static struct ata_port_info sata_port_info;
/**
* ipr_target_alloc - Prepare for commands to a SCSI target
* @starget: scsi target struct
*
* If the device is a SATA device, this function allocates an
* ATA port with libata, else it does nothing.
*
* Return value:
* 0 on success / non-0 on failure
**/
static int ipr_target_alloc(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
struct ipr_sata_port *sata_port;
struct ata_port *ap;
struct ipr_resource_entry *res;
unsigned long lock_flags;
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
res = ipr_find_starget(starget);
starget->hostdata = NULL;
if (res && ipr_is_gata(res)) {
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
if (!sata_port)
return -ENOMEM;
ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
if (ap) {
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
sata_port->ioa_cfg = ioa_cfg;
sata_port->ap = ap;
sata_port->res = res;
res->sata_port = sata_port;
ap->private_data = sata_port;
starget->hostdata = sata_port;
} else {
kfree(sata_port);
return -ENOMEM;
}
}
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
return 0;
}
/**
* ipr_target_destroy - Destroy a SCSI target
* @starget: scsi target struct
*
* If the device was a SATA device, this function frees the libata
* ATA port, else it does nothing.
*
**/
static void ipr_target_destroy(struct scsi_target *starget)
{
struct ipr_sata_port *sata_port = starget->hostdata;
struct Scsi_Host *shost = dev_to_shost(&starget->dev);
struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
......@@ -4874,12 +4733,6 @@ static void ipr_target_destroy(struct scsi_target *starget)
clear_bit(starget->id, ioa_cfg->target_ids);
}
}
if (sata_port) {
starget->hostdata = NULL;
ata_sas_port_destroy(sata_port->ap);
kfree(sata_port);
}
}
/**
......@@ -4922,11 +4775,8 @@ static void ipr_slave_destroy(struct scsi_device *sdev)
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
res = (struct ipr_resource_entry *) sdev->hostdata;
if (res) {
if (res->sata_port)
res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
sdev->hostdata = NULL;
res->sdev = NULL;
res->sata_port = NULL;
}
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
}
......@@ -4944,7 +4794,6 @@ static int ipr_slave_configure(struct scsi_device *sdev)
{
struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
struct ipr_resource_entry *res;
struct ata_port *ap = NULL;
unsigned long lock_flags = 0;
char buffer[IPR_MAX_RES_PATH_LENGTH];
......@@ -4964,15 +4813,8 @@ static int ipr_slave_configure(struct scsi_device *sdev)
IPR_VSET_RW_TIMEOUT);
blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
}
if (ipr_is_gata(res) && res->sata_port)
ap = res->sata_port->ap;
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
if (ap) {
scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
ata_sas_slave_configure(sdev, ap);
}
if (ioa_cfg->sis64)
sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
ipr_format_res_path(ioa_cfg,
......@@ -4983,37 +4825,6 @@ static int ipr_slave_configure(struct scsi_device *sdev)
return 0;
}
/**
* ipr_ata_slave_alloc - Prepare for commands to a SATA device
* @sdev: scsi device struct
*
* This function initializes an ATA port so that future commands
* sent through queuecommand will work.
*
* Return value:
* 0 on success
**/
static int ipr_ata_slave_alloc(struct scsi_device *sdev)
{
struct ipr_sata_port *sata_port = NULL;
int rc = -ENXIO;
ENTER;
if (sdev->sdev_target)
sata_port = sdev->sdev_target->hostdata;
if (sata_port) {
rc = ata_sas_port_init(sata_port->ap);
if (rc == 0)
rc = ata_sas_sync_probe(sata_port->ap);
}
if (rc)
ipr_slave_destroy(sdev);
LEAVE;
return rc;
}
/**
* ipr_slave_alloc - Prepare for commands to a device.
* @sdev: scsi device struct
......@@ -5047,8 +4858,10 @@ static int ipr_slave_alloc(struct scsi_device *sdev)
res->needs_sync_complete = 1;
rc = 0;
if (ipr_is_gata(res)) {
sdev_printk(KERN_ERR, sdev, "SATA devices are no longer "
"supported by this driver. Skipping device.\n");
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
return ipr_ata_slave_alloc(sdev);
return -ENXIO;
}
}
......@@ -5091,23 +4904,6 @@ static bool ipr_cmnd_is_free(struct ipr_cmnd *ipr_cmd)
return false;
}
/**
* ipr_match_res - Match function for specified resource entry
* @ipr_cmd: ipr command struct
* @resource: resource entry to match
*
* Returns:
* 1 if command matches sdev / 0 if command does not match sdev
**/
static int ipr_match_res(struct ipr_cmnd *ipr_cmd, void *resource)
{
struct ipr_resource_entry *res = resource;
if (res && ipr_cmd->ioarcb.res_handle == res->res_handle)
return 1;
return 0;
}
/**
* ipr_wait_for_ops - Wait for matching commands to complete
* @ioa_cfg: ioa config struct
......@@ -5220,8 +5016,7 @@ static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
* This function issues a device reset to the affected device.
* If the device is a SCSI device, a LUN reset will be sent
* to the device first. If that does not work, a target reset
* will be sent. If the device is a SATA device, a PHY reset will
* be sent.
* will be sent.
*
* Return value:
* 0 on success / non-zero on failure
......@@ -5232,7 +5027,6 @@ static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
struct ipr_cmnd *ipr_cmd;
struct ipr_ioarcb *ioarcb;
struct ipr_cmd_pkt *cmd_pkt;
struct ipr_ioarcb_ata_regs *regs;
u32 ioasc;
ENTER;
......@@ -5240,86 +5034,21 @@ static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
ioarcb = &ipr_cmd->ioarcb;
cmd_pkt = &ioarcb->cmd_pkt;
if (ipr_cmd->ioa_cfg->sis64) {
regs = &ipr_cmd->i.ata_ioadl.regs;
if (ipr_cmd->ioa_cfg->sis64)
ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
} else
regs = &ioarcb->u.add_data.u.regs;
ioarcb->res_handle = res->res_handle;
cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
if (ipr_is_gata(res)) {
cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
}
ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
if (ipr_cmd->ioa_cfg->sis64)
memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
sizeof(struct ipr_ioasa_gata));
else
memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
sizeof(struct ipr_ioasa_gata));
}
LEAVE;
return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
}
/**
* ipr_sata_reset - Reset the SATA port
* @link: SATA link to reset
* @classes: class of the attached device
* @deadline: unused
*
* This function issues a SATA phy reset to the affected ATA link.
*
* Return value:
* 0 on success / non-zero on failure
**/
static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
unsigned long deadline)
{
struct ipr_sata_port *sata_port = link->ap->private_data;
struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
struct ipr_resource_entry *res;
unsigned long lock_flags = 0;
int rc = -ENXIO, ret;
ENTER;
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
while (ioa_cfg->in_reset_reload) {
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
}
res = sata_port->res;
if (res) {
rc = ipr_device_reset(ioa_cfg, res);
*classes = res->ata_class;
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ret = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
if (ret != SUCCESS) {
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
}
} else
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
LEAVE;
return rc;
}
/**
* __ipr_eh_dev_reset - Reset the device
* @scsi_cmd: scsi command struct
......@@ -5333,12 +5062,9 @@ static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
**/
static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
{
struct ipr_cmnd *ipr_cmd;
struct ipr_ioa_cfg *ioa_cfg;
struct ipr_resource_entry *res;
struct ata_port *ap;
int rc = 0, i;
struct ipr_hrr_queue *hrrq;
int rc = 0;
ENTER;
ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
......@@ -5354,36 +5080,10 @@ static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
return FAILED;
for_each_hrrq(hrrq, ioa_cfg) {
spin_lock(&hrrq->_lock);
for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
if (!ipr_cmd->qc)
continue;
if (ipr_cmnd_is_free(ipr_cmd))
continue;
ipr_cmd->done = ipr_sata_eh_done;
if (!(ipr_cmd->qc->flags & ATA_QCFLAG_EH)) {
ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
ipr_cmd->qc->flags |= ATA_QCFLAG_EH;
}
}
}
spin_unlock(&hrrq->_lock);
}
res->resetting_device = 1;
scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
if (ipr_is_gata(res) && res->sata_port) {
ap = res->sata_port->ap;
spin_unlock_irq(scsi_cmd->device->host->host_lock);
ata_std_error_handler(ap);
spin_lock_irq(scsi_cmd->device->host->host_lock);
} else
rc = ipr_device_reset(ioa_cfg, res);
rc = ipr_device_reset(ioa_cfg, res);
res->resetting_device = 0;
res->reset_occurred = 1;
......@@ -5407,12 +5107,8 @@ static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
rc = __ipr_eh_dev_reset(cmd);
spin_unlock_irq(cmd->device->host->host_lock);
if (rc == SUCCESS) {
if (ipr_is_gata(res) && res->sata_port)
rc = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
else
rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
}
if (rc == SUCCESS)
rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
return rc;
}
......@@ -6564,7 +6260,7 @@ static int ipr_queuecommand(struct Scsi_Host *shost,
struct ipr_resource_entry *res;
struct ipr_ioarcb *ioarcb;
struct ipr_cmnd *ipr_cmd;
unsigned long hrrq_flags, lock_flags;
unsigned long hrrq_flags;
int rc;
struct ipr_hrr_queue *hrrq;
int hrrq_id;
......@@ -6574,13 +6270,6 @@ static int ipr_queuecommand(struct Scsi_Host *shost,
scsi_cmd->result = (DID_OK << 16);
res = scsi_cmd->device->hostdata;
if (ipr_is_gata(res) && res->sata_port) {
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
return rc;
}
hrrq_id = ipr_get_hrrq_index(ioa_cfg);
hrrq = &ioa_cfg->hrrq[hrrq_id];
......@@ -6690,30 +6379,6 @@ static int ipr_queuecommand(struct Scsi_Host *shost,
return 0;
}
/**
* ipr_ioctl - IOCTL handler
* @sdev: scsi device struct
* @cmd: IOCTL cmd
* @arg: IOCTL arg
*
* Return value:
* 0 on success / other on failure
**/
static int ipr_ioctl(struct scsi_device *sdev, unsigned int cmd,
void __user *arg)
{
struct ipr_resource_entry *res;
res = (struct ipr_resource_entry *)sdev->hostdata;
if (res && ipr_is_gata(res)) {
if (cmd == HDIO_GET_IDENTITY)
return -ENOTTY;
return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
}
return -EINVAL;
}
/**
* ipr_ioa_info - Get information about the card/driver
* @host: scsi host struct
......@@ -6740,12 +6405,7 @@ static const struct scsi_host_template driver_template = {
.module = THIS_MODULE,
.name = "IPR",
.info = ipr_ioa_info,
.ioctl = ipr_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = ipr_ioctl,
#endif
.queuecommand = ipr_queuecommand,
.dma_need_drain = ata_scsi_dma_need_drain,
.eh_abort_handler = ipr_eh_abort,
.eh_device_reset_handler = ipr_eh_dev_reset,
.eh_host_reset_handler = ipr_eh_host_reset,
......@@ -6753,7 +6413,6 @@ static const struct scsi_host_template driver_template = {
.slave_configure = ipr_slave_configure,
.slave_destroy = ipr_slave_destroy,
.scan_finished = ipr_scan_finished,
.target_alloc = ipr_target_alloc,
.target_destroy = ipr_target_destroy,
.change_queue_depth = ipr_change_queue_depth,
.bios_param = ipr_biosparam,
......@@ -6767,418 +6426,6 @@ static const struct scsi_host_template driver_template = {
.proc_name = IPR_NAME,
};
/**
* ipr_ata_phy_reset - libata phy_reset handler
* @ap: ata port to reset
*
**/
static void ipr_ata_phy_reset(struct ata_port *ap)
{
unsigned long flags;
struct ipr_sata_port *sata_port = ap->private_data;
struct ipr_resource_entry *res = sata_port->res;
struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
int rc;
ENTER;
spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
while (ioa_cfg->in_reset_reload) {
spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
}
if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
goto out_unlock;
rc = ipr_device_reset(ioa_cfg, res);
if (rc) {
ap->link.device[0].class = ATA_DEV_NONE;
goto out_unlock;
}
ap->link.device[0].class = res->ata_class;
if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
ap->link.device[0].class = ATA_DEV_NONE;
out_unlock:
spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
LEAVE;
}
/**
* ipr_ata_post_internal - Cleanup after an internal command
* @qc: ATA queued command
*
* Return value:
* none
**/
static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
{
struct ipr_sata_port *sata_port = qc->ap->private_data;
struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
struct ipr_cmnd *ipr_cmd;
struct ipr_hrr_queue *hrrq;
unsigned long flags;
spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
while (ioa_cfg->in_reset_reload) {
spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
}
for_each_hrrq(hrrq, ioa_cfg) {
spin_lock(&hrrq->_lock);
list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
if (ipr_cmd->qc == qc) {
ipr_device_reset(ioa_cfg, sata_port->res);
break;
}
}
spin_unlock(&hrrq->_lock);
}
spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
}
/**
* ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
* @regs: destination
* @tf: source ATA taskfile
*
* Return value:
* none
**/
static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
struct ata_taskfile *tf)
{
regs->feature = tf->feature;
regs->nsect = tf->nsect;
regs->lbal = tf->lbal;
regs->lbam = tf->lbam;
regs->lbah = tf->lbah;
regs->device = tf->device;
regs->command = tf->command;
regs->hob_feature = tf->hob_feature;
regs->hob_nsect = tf->hob_nsect;
regs->hob_lbal = tf->hob_lbal;
regs->hob_lbam = tf->hob_lbam;
regs->hob_lbah = tf->hob_lbah;
regs->ctl = tf->ctl;
}
/**
* ipr_sata_done - done function for SATA commands
* @ipr_cmd: ipr command struct
*
* This function is invoked by the interrupt handler for
* ops generated by the SCSI mid-layer to SATA devices
*
* Return value:
* none
**/
static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
{
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
struct ata_queued_cmd *qc = ipr_cmd->qc;
struct ipr_sata_port *sata_port = qc->ap->private_data;
struct ipr_resource_entry *res = sata_port->res;
u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
spin_lock(&ipr_cmd->hrrq->_lock);
if (ipr_cmd->ioa_cfg->sis64)
memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
sizeof(struct ipr_ioasa_gata));
else
memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
sizeof(struct ipr_ioasa_gata));
ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
else
qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
spin_unlock(&ipr_cmd->hrrq->_lock);
ata_qc_complete(qc);
}
/**
* ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
* @ipr_cmd: ipr command struct
* @qc: ATA queued command
*
**/
static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
struct ata_queued_cmd *qc)
{
u32 ioadl_flags = 0;
struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
struct ipr_ioadl64_desc *last_ioadl64 = NULL;
int len = qc->nbytes;
struct scatterlist *sg;
unsigned int si;
dma_addr_t dma_addr = ipr_cmd->dma_addr;
if (len == 0)
return;
if (qc->dma_dir == DMA_TO_DEVICE) {
ioadl_flags = IPR_IOADL_FLAGS_WRITE;
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
} else if (qc->dma_dir == DMA_FROM_DEVICE)
ioadl_flags = IPR_IOADL_FLAGS_READ;
ioarcb->data_transfer_length = cpu_to_be32(len);
ioarcb->ioadl_len =
cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
ioarcb->u.sis64_addr_data.data_ioadl_addr =
cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
for_each_sg(qc->sg, sg, qc->n_elem, si) {
ioadl64->flags = cpu_to_be32(ioadl_flags);
ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
ioadl64->address = cpu_to_be64(sg_dma_address(sg));
last_ioadl64 = ioadl64;
ioadl64++;
}
if (likely(last_ioadl64))
last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
}
/**
* ipr_build_ata_ioadl - Build an ATA scatter/gather list
* @ipr_cmd: ipr command struct
* @qc: ATA queued command
*
**/
static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
struct ata_queued_cmd *qc)
{
u32 ioadl_flags = 0;
struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
struct ipr_ioadl_desc *last_ioadl = NULL;
int len = qc->nbytes;
struct scatterlist *sg;
unsigned int si;
if (len == 0)
return;
if (qc->dma_dir == DMA_TO_DEVICE) {
ioadl_flags = IPR_IOADL_FLAGS_WRITE;
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
ioarcb->data_transfer_length = cpu_to_be32(len);
ioarcb->ioadl_len =
cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
} else if (qc->dma_dir == DMA_FROM_DEVICE) {
ioadl_flags = IPR_IOADL_FLAGS_READ;
ioarcb->read_data_transfer_length = cpu_to_be32(len);
ioarcb->read_ioadl_len =
cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
}
for_each_sg(qc->sg, sg, qc->n_elem, si) {
ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
ioadl->address = cpu_to_be32(sg_dma_address(sg));
last_ioadl = ioadl;
ioadl++;
}
if (likely(last_ioadl))
last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
}
/**
* ipr_qc_defer - Get a free ipr_cmd
* @qc: queued command
*
* Return value:
* 0 if success
**/
static int ipr_qc_defer(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ipr_sata_port *sata_port = ap->private_data;
struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
struct ipr_cmnd *ipr_cmd;
struct ipr_hrr_queue *hrrq;
int hrrq_id;
hrrq_id = ipr_get_hrrq_index(ioa_cfg);
hrrq = &ioa_cfg->hrrq[hrrq_id];
qc->lldd_task = NULL;
spin_lock(&hrrq->_lock);
if (unlikely(hrrq->ioa_is_dead)) {
spin_unlock(&hrrq->_lock);
return 0;
}
if (unlikely(!hrrq->allow_cmds)) {
spin_unlock(&hrrq->_lock);
return ATA_DEFER_LINK;
}
ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
if (ipr_cmd == NULL) {
spin_unlock(&hrrq->_lock);
return ATA_DEFER_LINK;
}
qc->lldd_task = ipr_cmd;
spin_unlock(&hrrq->_lock);
return 0;
}
/**
* ipr_qc_issue - Issue a SATA qc to a device
* @qc: queued command
*
* Return value:
* 0 if success
**/
static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ipr_sata_port *sata_port = ap->private_data;
struct ipr_resource_entry *res = sata_port->res;
struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
struct ipr_cmnd *ipr_cmd;
struct ipr_ioarcb *ioarcb;
struct ipr_ioarcb_ata_regs *regs;
if (qc->lldd_task == NULL)
ipr_qc_defer(qc);
ipr_cmd = qc->lldd_task;
if (ipr_cmd == NULL)
return AC_ERR_SYSTEM;
qc->lldd_task = NULL;
spin_lock(&ipr_cmd->hrrq->_lock);
if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
ipr_cmd->hrrq->ioa_is_dead)) {
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
spin_unlock(&ipr_cmd->hrrq->_lock);
return AC_ERR_SYSTEM;
}
ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
ioarcb = &ipr_cmd->ioarcb;
if (ioa_cfg->sis64) {
regs = &ipr_cmd->i.ata_ioadl.regs;
ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
} else
regs = &ioarcb->u.add_data.u.regs;
memset(regs, 0, sizeof(*regs));
ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
ipr_cmd->qc = qc;
ipr_cmd->done = ipr_sata_done;
ipr_cmd->ioarcb.res_handle = res->res_handle;
ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
ipr_cmd->dma_use_sg = qc->n_elem;
if (ioa_cfg->sis64)
ipr_build_ata_ioadl64(ipr_cmd, qc);
else
ipr_build_ata_ioadl(ipr_cmd, qc);
regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
ipr_copy_sata_tf(regs, &qc->tf);
memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
switch (qc->tf.protocol) {
case ATA_PROT_NODATA:
case ATA_PROT_PIO:
break;
case ATA_PROT_DMA:
regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
break;
case ATAPI_PROT_PIO:
case ATAPI_PROT_NODATA:
regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
break;
case ATAPI_PROT_DMA:
regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
break;
default:
WARN_ON(1);
spin_unlock(&ipr_cmd->hrrq->_lock);
return AC_ERR_INVALID;
}
ipr_send_command(ipr_cmd);
spin_unlock(&ipr_cmd->hrrq->_lock);
return 0;
}
/**
* ipr_qc_fill_rtf - Read result TF
* @qc: ATA queued command
**/
static void ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
{
struct ipr_sata_port *sata_port = qc->ap->private_data;
struct ipr_ioasa_gata *g = &sata_port->ioasa;
struct ata_taskfile *tf = &qc->result_tf;
tf->feature = g->error;
tf->nsect = g->nsect;
tf->lbal = g->lbal;
tf->lbam = g->lbam;
tf->lbah = g->lbah;
tf->device = g->device;
tf->command = g->status;
tf->hob_nsect = g->hob_nsect;
tf->hob_lbal = g->hob_lbal;
tf->hob_lbam = g->hob_lbam;
tf->hob_lbah = g->hob_lbah;
}
static struct ata_port_operations ipr_sata_ops = {
.phy_reset = ipr_ata_phy_reset,
.hardreset = ipr_sata_reset,
.post_internal_cmd = ipr_ata_post_internal,
.qc_prep = ata_noop_qc_prep,
.qc_defer = ipr_qc_defer,
.qc_issue = ipr_qc_issue,
.qc_fill_rtf = ipr_qc_fill_rtf,
.port_start = ata_sas_port_start,
.port_stop = ata_sas_port_stop
};
static struct ata_port_info sata_port_info = {
.flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
ATA_FLAG_SAS_HOST,
.pio_mask = ATA_PIO4_ONLY,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &ipr_sata_ops
};
#ifdef CONFIG_PPC_PSERIES
static const u16 ipr_blocked_processors[] = {
PVR_NORTHSTAR,
......@@ -10181,7 +9428,6 @@ static int ipr_probe_ioa(struct pci_dev *pdev,
ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
......
drivers/scsi/ipr.h
View file @ 65a15d65
......@@ -16,7 +16,6 @@
#include <asm/unaligned.h>
#include <linux/types.h>
#include <linux/completion.h>
#include <linux/libata.h>
#include <linux/list.h>
#include <linux/kref.h>
#include <linux/irq_poll.h>
......@@ -35,7 +34,6 @@
* This can be adjusted at runtime through sysfs device attributes.
*/
#define IPR_MAX_CMD_PER_LUN 6
#define IPR_MAX_CMD_PER_ATA_LUN 1
/*
* IPR_NUM_BASE_CMD_BLKS: This defines the maximum number of
......@@ -197,7 +195,6 @@
#define IPR_LUN_RESET 0x40
#define IPR_TARGET_RESET 0x20
#define IPR_BUS_RESET 0x10
#define IPR_ATA_PHY_RESET 0x80
#define IPR_ID_HOST_RR_Q 0xC4
#define IPR_QUERY_IOA_CONFIG 0xC5
#define IPR_CANCEL_ALL_REQUESTS 0xCE
......@@ -521,7 +518,6 @@ struct ipr_cmd_pkt {
#define IPR_RQTYPE_SCSICDB 0x00
#define IPR_RQTYPE_IOACMD 0x01
#define IPR_RQTYPE_HCAM 0x02
#define IPR_RQTYPE_ATA_PASSTHRU 0x04
#define IPR_RQTYPE_PIPE 0x05
u8 reserved2;
......@@ -546,30 +542,6 @@ struct ipr_cmd_pkt {
__be16 timeout;
}__attribute__ ((packed, aligned(4)));
struct ipr_ioarcb_ata_regs { /* 22 bytes */
u8 flags;
#define IPR_ATA_FLAG_PACKET_CMD 0x80
#define IPR_ATA_FLAG_XFER_TYPE_DMA 0x40
#define IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION 0x20
u8 reserved[3];
__be16 data;
u8 feature;
u8 nsect;
u8 lbal;
u8 lbam;
u8 lbah;
u8 device;
u8 command;
u8 reserved2[3];
u8 hob_feature;
u8 hob_nsect;
u8 hob_lbal;
u8 hob_lbam;
u8 hob_lbah;
u8 ctl;
}__attribute__ ((packed, aligned(2)));
struct ipr_ioadl_desc {
__be32 flags_and_data_len;
#define IPR_IOADL_FLAGS_MASK 0xff000000
......@@ -591,15 +563,8 @@ struct ipr_ioadl64_desc {
__be64 address;
}__attribute__((packed, aligned (16)));
struct ipr_ata64_ioadl {
struct ipr_ioarcb_ata_regs regs;
u16 reserved[5];
struct ipr_ioadl64_desc ioadl64[IPR_NUM_IOADL_ENTRIES];
}__attribute__((packed, aligned (16)));
struct ipr_ioarcb_add_data {
union {
struct ipr_ioarcb_ata_regs regs;
struct ipr_ioadl_desc ioadl[5];
__be32 add_cmd_parms[10];
} u;
......@@ -665,21 +630,6 @@ struct ipr_ioasa_gpdd {
__be32 ioa_data[2];
}__attribute__((packed, aligned (4)));
struct ipr_ioasa_gata {
u8 error;
u8 nsect; /* Interrupt reason */
u8 lbal;
u8 lbam;
u8 lbah;
u8 device;
u8 status;
u8 alt_status; /* ATA CTL */
u8 hob_nsect;
u8 hob_lbal;
u8 hob_lbam;
u8 hob_lbah;
}__attribute__((packed, aligned (4)));
struct ipr_auto_sense {
__be16 auto_sense_len;
__be16 ioa_data_len;
......@@ -713,7 +663,6 @@ struct ipr_ioasa_hdr {
__be32 ioasc_specific; /* status code specific field */
#define IPR_ADDITIONAL_STATUS_FMT 0x80000000
#define IPR_AUTOSENSE_VALID 0x40000000
#define IPR_ATA_DEVICE_WAS_RESET 0x20000000
#define IPR_IOASC_SPECIFIC_MASK 0x00ffffff
#define IPR_FIELD_POINTER_VALID (0x80000000 >> 8)
#define IPR_FIELD_POINTER_MASK 0x0000ffff
......@@ -727,7 +676,6 @@ struct ipr_ioasa {
struct ipr_ioasa_vset vset;
struct ipr_ioasa_af_dasd dasd;
struct ipr_ioasa_gpdd gpdd;
struct ipr_ioasa_gata gata;
} u;
struct ipr_auto_sense auto_sense;
......@@ -741,7 +689,6 @@ struct ipr_ioasa64 {
struct ipr_ioasa_vset vset;
struct ipr_ioasa_af_dasd dasd;
struct ipr_ioasa_gpdd gpdd;
struct ipr_ioasa_gata gata;
} u;
struct ipr_auto_sense auto_sense;
......@@ -1279,13 +1226,6 @@ struct ipr_bus_attributes {
u32 max_xfer_rate;
};
struct ipr_sata_port {
struct ipr_ioa_cfg *ioa_cfg;
struct ata_port *ap;
struct ipr_resource_entry *res;
struct ipr_ioasa_gata ioasa;
};
struct ipr_resource_entry {
u8 needs_sync_complete:1;
u8 in_erp:1;
......@@ -1323,7 +1263,6 @@ struct ipr_resource_entry {
struct ipr_ioa_cfg *ioa_cfg;
struct scsi_device *sdev;
struct ipr_sata_port *sata_port;
struct list_head queue;
}; /* struct ipr_resource_entry */
......@@ -1582,7 +1521,6 @@ struct ipr_ioa_cfg {
struct ipr_cmnd *reset_cmd;
int (*reset) (struct ipr_cmnd *);
struct ata_host ata_host;
char ipr_cmd_label[8];
#define IPR_CMD_LABEL "ipr_cmd"
u32 max_cmds;
......@@ -1604,7 +1542,6 @@ struct ipr_cmnd {
union {
struct ipr_ioadl_desc ioadl[IPR_NUM_IOADL_ENTRIES];
struct ipr_ioadl64_desc ioadl64[IPR_NUM_IOADL_ENTRIES];
struct ipr_ata64_ioadl ata_ioadl;
} i;
union {
struct ipr_ioasa ioasa;
......@@ -1612,7 +1549,6 @@ struct ipr_cmnd {
} s;
struct list_head queue;
struct scsi_cmnd *scsi_cmd;
struct ata_queued_cmd *qc;
struct completion completion;
struct timer_list timer;
struct work_struct work;
......
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