static bool sas_ata_qc_fill_rtf(struct ata_queued_cmd *qc)
{
struct domain_device *dev = qc->ap->private_data;
ata_tf_from_fis(dev->sata_dev.fis, &qc->result_tf);
return true;
}
static void sas_ata_task_done(struct sas_task *task)
{
struct ata_queued_cmd *qc = task->uldd_task;
struct domain_device *dev;
struct task_status_struct *stat = &task->task_status;
struct ata_task_resp *resp = (struct ata_task_resp *)stat->buf;
struct sas_ha_struct *sas_ha;
enum ata_completion_errors ac;
unsigned long flags;
if (!qc)
goto qc_already_gone;
dev = qc->ap->private_data;
sas_ha = dev->port->ha;
spin_lock_irqsave(dev->sata_dev.ap->lock, flags);
if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_GOOD) {
ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf);
qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command);
dev->sata_dev.sstatus = resp->sstatus;
dev->sata_dev.serror = resp->serror;
dev->sata_dev.scontrol = resp->scontrol;
} else if (stat->stat != SAM_STAT_GOOD) {
ac = sas_to_ata_err(stat);
if (ac) {
SAS_DPRINTK("%s: SAS error %x\n", __FUNCTION__,
stat->stat);
/* We saw a SAS error. Send a vague error. */
qc->err_mask = ac;
dev->sata_dev.tf.feature = 0x04; /* status err */
dev->sata_dev.tf.command = ATA_ERR;
}
}
qc->lldd_task = NULL;
if (qc->scsicmd)
ASSIGN_SAS_TASK(qc->scsicmd, NULL);
ata_qc_complete(qc);
spin_unlock_irqrestore(dev->sata_dev.ap->lock, flags);
/*
* If the sas_task has an ata qc, a scsi_cmnd and the aborted
* flag is set, then we must have come in via the libsas EH
* functions. When we exit this function, we need to put the
* scsi_cmnd on the list of finished errors. The ata_qc_complete
* call cleans up the libata side of things but we're protected
* from the scsi_cmnd going away because the scsi_cmnd is owned
* by the EH, making libata's call to scsi_done a NOP.
*/
spin_lock_irqsave(&task->task_state_lock, flags);
if (qc->scsicmd && task->task_state_flags & SAS_TASK_STATE_ABORTED)
scsi_eh_finish_cmd(qc->scsicmd, &sas_ha->eh_done_q);
spin_unlock_irqrestore(&task->task_state_lock, flags);
qc_already_gone:
list_del_init(&task->list);
sas_free_task(task);
}
static void sas_ata_task_done(struct sas_task *task)
{
struct ata_queued_cmd *qc = task->uldd_task;
struct domain_device *dev = task->dev;
struct task_status_struct *stat = &task->task_status;
struct ata_task_resp *resp = (struct ata_task_resp *)stat->buf;
struct sas_ha_struct *sas_ha = dev->port->ha;
enum ata_completion_errors ac;
unsigned long flags;
struct ata_link *link;
struct ata_port *ap;
spin_lock_irqsave(&dev->done_lock, flags);
if (test_bit(SAS_HA_FROZEN, &sas_ha->state))
task = NULL;
else if (qc && qc->scsicmd)
ASSIGN_SAS_TASK(qc->scsicmd, NULL);
spin_unlock_irqrestore(&dev->done_lock, flags);
if (unlikely(!task))
return;
if (!qc)
goto qc_already_gone;
ap = qc->ap;
link = &ap->link;
spin_lock_irqsave(ap->lock, flags);
if (unlikely(ap->pflags & ATA_PFLAG_FROZEN)) {
spin_unlock_irqrestore(ap->lock, flags);
if (qc->scsicmd)
goto qc_already_gone;
else {
return;
}
}
if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD ||
((stat->stat == SAM_STAT_CHECK_CONDITION &&
dev->sata_dev.command_set == ATAPI_COMMAND_SET))) {
ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf);
if (!link->sactive) {
qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command);
} else {
link->eh_info.err_mask |= ac_err_mask(dev->sata_dev.tf.command);
if (unlikely(link->eh_info.err_mask))
qc->flags |= ATA_QCFLAG_FAILED;
}
} else {
ac = sas_to_ata_err(stat);
if (ac) {
SAS_DPRINTK("%s: SAS error %x\n", __func__,
stat->stat);
if (!link->sactive) {
qc->err_mask = ac;
} else {
link->eh_info.err_mask |= AC_ERR_DEV;
qc->flags |= ATA_QCFLAG_FAILED;
}
dev->sata_dev.tf.feature = 0x04;
dev->sata_dev.tf.command = ATA_ERR;
}
}
qc->lldd_task = NULL;
ata_qc_complete(qc);
spin_unlock_irqrestore(ap->lock, flags);
qc_already_gone:
list_del_init(&task->list);
sas_free_task(task);
}
static void sas_ata_task_done(struct sas_task *task)
{
struct ata_queued_cmd *qc = task->uldd_task;
struct domain_device *dev = task->dev;
struct task_status_struct *stat = &task->task_status;
struct ata_task_resp *resp = (struct ata_task_resp *)stat->buf;
struct sas_ha_struct *sas_ha = dev->port->ha;
enum ata_completion_errors ac;
unsigned long flags;
struct ata_link *link;
struct ata_port *ap;
spin_lock_irqsave(&dev->done_lock, flags);
if (test_bit(SAS_HA_FROZEN, &sas_ha->state))
task = NULL;
else if (qc && qc->scsicmd)
ASSIGN_SAS_TASK(qc->scsicmd, NULL);
spin_unlock_irqrestore(&dev->done_lock, flags);
/* check if libsas-eh got to the task before us */
if (unlikely(!task))
return;
if (!qc)
goto qc_already_gone;
ap = qc->ap;
link = &ap->link;
spin_lock_irqsave(ap->lock, flags);
/* check if we lost the race with libata/sas_ata_post_internal() */
if (unlikely(ap->pflags & ATA_PFLAG_FROZEN)) {
spin_unlock_irqrestore(ap->lock, flags);
if (qc->scsicmd)
goto qc_already_gone;
else {
/* if eh is not involved and the port is frozen then the
* ata internal abort process has taken responsibility
* for this sas_task
*/
return;
}
}
if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD ||
((stat->stat == SAM_STAT_CHECK_CONDITION &&
dev->sata_dev.command_set == ATAPI_COMMAND_SET))) {
ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf);
if (!link->sactive) {
qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command);
} else {
link->eh_info.err_mask |= ac_err_mask(dev->sata_dev.tf.command);
if (unlikely(link->eh_info.err_mask))
qc->flags |= ATA_QCFLAG_FAILED;
}
} else {
ac = sas_to_ata_err(stat);
if (ac) {
SAS_DPRINTK("%s: SAS error %x\n", __func__,
stat->stat);
/* We saw a SAS error. Send a vague error. */
if (!link->sactive) {
qc->err_mask = ac;
} else {
link->eh_info.err_mask |= AC_ERR_DEV;
qc->flags |= ATA_QCFLAG_FAILED;
}
dev->sata_dev.tf.feature = 0x04; /* status err */
dev->sata_dev.tf.command = ATA_ERR;
}
}
qc->lldd_task = NULL;
ata_qc_complete(qc);
spin_unlock_irqrestore(ap->lock, flags);
qc_already_gone:
list_del_init(&task->list);
sas_free_task(task);
}
