Changing SDEV Running state from interrupt context. Previously It was
handle in work queue thread. With this change It will not wait for work
queue thread to execute scsih_ublock_io_device to put SDEV into Running
state. This will reduce delay for Device becoming RUNNING.
---
Signed-off-by: Kashyap Desai <kashyap.desai@xxxxxxx>
Signed-off-by: Eric Moore <Eric.moore@xxxxxxx>
---
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index c0d5d5e..33ba2a4 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -2327,6 +2327,7 @@ _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
u16 handle;
u16 reason_code;
u8 phy_number;
+ u8 link_rate;
for (i = 0; i < event_data->NumEntries; i++) {
handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
@@ -2337,6 +2338,11 @@ _scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
MPI2_EVENT_SAS_TOPO_RC_MASK;
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
_scsih_block_io_device(ioc, handle);
+ if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
+ link_rate = event_data->PHY[i].LinkRate >> 4;
+ if (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)
+ _scsih_ublock_io_device(ioc, handle);
+ }
}
}
@@ -3871,10 +3877,6 @@ _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
link_rate_);
}
}
- if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
- if (link_rate_ >= MPI2_SAS_NEG_LINK_RATE_1_5)
- _scsih_ublock_io_device(ioc, handle);
- }
if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
break;
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
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