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path: root/drivers/s390/scsi/zfcp_scsi.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_scsi.c')
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c24
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index abae2027f7e..b9daf5c0586 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -51,7 +51,6 @@ struct zfcp_data zfcp_data = {
.queuecommand = zfcp_scsi_queuecommand,
.eh_abort_handler = zfcp_scsi_eh_abort_handler,
.eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
- .eh_bus_reset_handler = zfcp_scsi_eh_host_reset_handler,
.eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler,
.can_queue = 4096,
.this_id = -1,
@@ -181,9 +180,6 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
if (unit) {
zfcp_erp_wait(unit->port->adapter);
- wait_event(unit->scsi_scan_wq,
- atomic_test_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING,
- &unit->status) == 0);
atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
sdpnt->hostdata = NULL;
unit->device = NULL;
@@ -262,8 +258,9 @@ zfcp_scsi_command_async(struct zfcp_adapter *adapter, struct zfcp_unit *unit,
goto out;
}
- if (unlikely(
- !atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &unit->status))) {
+ tmp = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, use_timer,
+ ZFCP_REQ_AUTO_CLEANUP);
+ if (unlikely(tmp == -EBUSY)) {
ZFCP_LOG_DEBUG("adapter %s not ready or unit 0x%016Lx "
"on port 0x%016Lx in recovery\n",
zfcp_get_busid_by_unit(unit),
@@ -272,9 +269,6 @@ zfcp_scsi_command_async(struct zfcp_adapter *adapter, struct zfcp_unit *unit,
goto out;
}
- tmp = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, use_timer,
- ZFCP_REQ_AUTO_CLEANUP);
-
if (unlikely(tmp < 0)) {
ZFCP_LOG_DEBUG("error: initiation of Send FCP Cmnd failed\n");
retval = SCSI_MLQUEUE_HOST_BUSY;
@@ -459,7 +453,9 @@ zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
retval = SUCCESS;
goto out;
}
- ZFCP_LOG_NORMAL("resetting unit 0x%016Lx\n", unit->fcp_lun);
+ ZFCP_LOG_NORMAL("resetting unit 0x%016Lx on port 0x%016Lx, adapter %s\n",
+ unit->fcp_lun, unit->port->wwpn,
+ zfcp_get_busid_by_adapter(unit->port->adapter));
/*
* If we do not know whether the unit supports 'logical unit reset'
@@ -542,7 +538,7 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags,
}
/**
- * zfcp_scsi_eh_host_reset_handler - handler for host and bus reset
+ * zfcp_scsi_eh_host_reset_handler - handler for host reset
*/
static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
{
@@ -552,8 +548,10 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
unit = (struct zfcp_unit*) scpnt->device->hostdata;
adapter = unit->port->adapter;
- ZFCP_LOG_NORMAL("host/bus reset because of problems with "
- "unit 0x%016Lx\n", unit->fcp_lun);
+ ZFCP_LOG_NORMAL("host reset because of problems with "
+ "unit 0x%016Lx on port 0x%016Lx, adapter %s\n",
+ unit->fcp_lun, unit->port->wwpn,
+ zfcp_get_busid_by_adapter(unit->port->adapter));
zfcp_erp_adapter_reopen(adapter, 0);
zfcp_erp_wait(adapter);