[PATCH v2 11/18] scsi: libsas: Add TMF handler exec complete callback

John Garry
2022-02-17T15:49:36Z

The pm8001 TMF handler has some special processing when the TMF completes,
so add a callback and fill it in for the pm8001 driver.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Yihang Li <liyihang6@hisilicon.com>
---
drivers/scsi/libsas/sas_scsi_host.c | 3 +++
drivers/scsi/pm8001/pm8001_init.c | 1 +
drivers/scsi/pm8001/pm8001_sas.c | 14 ++++++++++++++
drivers/scsi/pm8001/pm8001_sas.h | 1 +
include/scsi/libsas.h | 3 +++
5 files changed, 22 insertions(+)

diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index af2dd95a2b28..0f599744738d 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -957,6 +957,9 @@ int sas_execute_tmf(struct domain_device *device, void *parameter,

wait_for_completion(&task->slow_task->completion);

+ if (i->dft->lldd_tmf_exec_complete)
+ i->dft->lldd_tmf_exec_complete(device);
+
res = TMF_RESP_FUNC_FAILED;

if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index b8cf1bae4040..8eef8f4de42f 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -128,6 +128,7 @@ static struct sas_domain_function_template pm8001_transport_ops = {
.lldd_lu_reset = pm8001_lu_reset,
.lldd_query_task = pm8001_query_task,
.lldd_port_formed = pm8001_port_formed,
+ .lldd_tmf_exec_complete = pm8001_setds_completion,
};

/**
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index a53e4b54154f..69da7246ea20 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1376,3 +1376,17 @@ void pm8001_port_formed(struct asd_sas_phy *sas_phy)
}
sas_port->lldd_port = port;
}
+
+void pm8001_setds_completion(struct domain_device *dev)
+{
+ struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
+ struct pm8001_device *pm8001_dev = dev->lldd_dev;
+ DECLARE_COMPLETION_ONSTACK(completion_setstate);
+
+ if (pm8001_ha->chip_id != chip_8001) {
+ pm8001_dev->setds_completion = &completion_setstate;
+ PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
+ pm8001_dev, DS_OPERATIONAL);
+ wait_for_completion(&completion_setstate);
+ }
+}
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 0b1086042ca6..c19c9c80206c 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -742,6 +742,7 @@ pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha,
smp_mb(); /*in order to force CPU ordering*/
task->task_done(task);
}
+void pm8001_setds_completion(struct domain_device *dev);

#endif

diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 9c181ebccfee..dd6551e809a0 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -652,6 +652,9 @@ struct sas_domain_function_template {
int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
int (*lldd_query_task)(struct sas_task *);

+ /* Special TMF callbacks */
+ void (*lldd_tmf_exec_complete)(struct domain_device *dev);
+
/* Port and Adapter management */
int (*lldd_clear_nexus_port)(struct asd_sas_port *);
int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
--
2.26.2