From: Viswas G <viswa...@pmcs.com>
In Nexus reset the device state set to DS_IN_RECOVERY before doing
phy reset and internal cleanup. Once internal cleanup finishes,
the device state will set to DS_OPERATIONAL.
Signed-off-by: Viswas G <viswa...@pmcs.com>
Signed-off-by: Suresh Thiagarajan <suresh.thiagara...@pmcs.com>
---
drivers/scsi/pm8001/pm8001_sas.c | 14 +++++++++++---
drivers/scsi/pm8001/pm8001_sas.h | 8 ++++++++
2 files changed, 19 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index b93f289..4e6955f 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -980,13 +980,21 @@ int pm8001_I_T_nexus_reset(struct domain_device *dev)
rc = 0;
goto out;
}
+ pm8001_dev->setds_completion = &completion_setstate;
+ PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
+ pm8001_dev, DS_IN_RECOVERY);
+ wait_for_completion(&completion_setstate);
rc = sas_phy_reset(phy, 1);
msleep(2000);
+ if (rc) {
+ PM8001_EH_DBG(pm8001_ha,
+ pm8001_printk("phy reset failed for device %x\n"
+ "with rc %d\n", pm8001_dev->device_id, rc));
+ }
rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev ,
dev, 1, 0);
- pm8001_dev->setds_completion = &completion_setstate;
- rc = PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
- pm8001_dev, 0x01);
+ PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
+ pm8001_dev, DS_OPERATIONAL);
wait_for_completion(&completion_setstate);
} else {
rc = sas_phy_reset(phy, 1);
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 8dd8b78..c9736cc 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -569,6 +569,14 @@ struct pm8001_fw_image_header {
#define NCQ_READ_LOG_FLAG 0x80000000
#define NCQ_ABORT_ALL_FLAG 0x40000000
#define NCQ_2ND_RLE_FLAG 0x20000000
+
+/* Device states */
+#define DS_OPERATIONAL 0x01
+#define DS_PORT_IN_RESET 0x02
+#define DS_IN_RECOVERY 0x03
+#define DS_IN_ERROR 0x04
+#define DS_NON_OPERATIONAL 0x07
+
/**
* brief param structure for firmware flash update.
*/
--
1.7.1
--
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