From: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
Register zfcp with the new /proc/service_level interface to report the
FCP microcode level. When the adapter goes offline or a channel path
disappears, zfcp unregisters, since the microcode version might change
and zfcp does not know about it.
Signed-off-by: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---
drivers/s390/scsi/zfcp_aux.c | 13 +++++++++++++
drivers/s390/scsi/zfcp_def.h | 2 ++
drivers/s390/scsi/zfcp_erp.c | 5 ++++-
3 files changed, 19 insertions(+), 1 deletion(-)
Index: quilt-2.6/drivers/s390/scsi/zfcp_aux.c
===================================================================
--- quilt-2.6.orig/drivers/s390/scsi/zfcp_aux.c
+++ quilt-2.6/drivers/s390/scsi/zfcp_aux.c
@@ -26,6 +26,7 @@
*/
#include <linux/miscdevice.h>
+#include <linux/seq_file.h>
#include "zfcp_ext.h"
static char *device;
@@ -436,6 +437,16 @@ static void _zfcp_status_read_scheduler(
stat_work));
}
+static void zfcp_print_sl(struct seq_file *m, struct service_level *sl)
+{
+ struct zfcp_adapter *adapter =
+ container_of(sl, struct zfcp_adapter, service_level);
+
+ seq_printf(m, "zfcp: %s microcode level %x\n",
+ dev_name(&adapter->ccw_device->dev),
+ adapter->fsf_lic_version);
+}
+
/**
* zfcp_adapter_enqueue - enqueue a new adapter to the list
* @ccw_device: pointer to the struct cc_device
@@ -500,6 +511,8 @@ int zfcp_adapter_enqueue(struct ccw_devi
INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler);
INIT_WORK(&adapter->scan_work, _zfcp_scan_ports_later);
+ adapter->service_level.seq_print = zfcp_print_sl;
+
/* mark adapter unusable as long as sysfs registration is not complete */
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
Index: quilt-2.6/drivers/s390/scsi/zfcp_def.h
===================================================================
--- quilt-2.6.orig/drivers/s390/scsi/zfcp_def.h
+++ quilt-2.6/drivers/s390/scsi/zfcp_def.h
@@ -33,6 +33,7 @@
#include <asm/qdio.h>
#include <asm/debug.h>
#include <asm/ebcdic.h>
+#include <asm/sysinfo.h>
#include "zfcp_dbf.h"
#include "zfcp_fsf.h"
@@ -515,6 +516,7 @@ struct zfcp_adapter {
struct fsf_qtcb_bottom_port *stats_reset_data;
unsigned long stats_reset;
struct work_struct scan_work;
+ struct service_level service_level;
atomic_t qdio_outb_full; /* queue full incidents */
};
Index: quilt-2.6/drivers/s390/scsi/zfcp_erp.c
===================================================================
--- quilt-2.6.orig/drivers/s390/scsi/zfcp_erp.c
+++ quilt-2.6/drivers/s390/scsi/zfcp_erp.c
@@ -1280,8 +1280,11 @@ static void zfcp_erp_action_cleanup(stru
break;
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
- if (result != ZFCP_ERP_SUCCEEDED)
+ if (result != ZFCP_ERP_SUCCEEDED) {
+ unregister_service_level(&adapter->service_level);
zfcp_erp_rports_del(adapter);
+ } else
+ register_service_level(&adapter->service_level);
zfcp_adapter_put(adapter);
break;
}
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
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