From: Maxim Shchetynin <maxim@xxxxxxxxxx>
[PATCH] zfcp: handle unsolicited status notification lost
Handle unsolicited adapter status that informs about loss of
previous unsolicited status notification(s).
Signed-off-by: Maxim Shchetynin <maxim@xxxxxxxxxx>
Signed-off-by: Andreas Herrmann <aherrman@xxxxxxxxxx>
---
drivers/s390/scsi/zfcp_fsf.c | 35 +++++++++++++++++++++++++++++++++++
drivers/s390/scsi/zfcp_fsf.h | 12 ++++++++++++
2 files changed, 47 insertions(+), 0 deletions(-)
80c65f35dc67575864cc6aae70508575b61a093d
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 5958795..bf859c9 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -964,6 +964,40 @@ zfcp_fsf_status_read_handler(struct zfcp
| ZFCP_STATUS_COMMON_ERP_FAILED);
break;
+ case FSF_STATUS_READ_NOTIFICATION_LOST:
+ ZFCP_LOG_NORMAL("Unsolicited status notification(s) lost: "
+ "adapter %s%s%s%s%s%s%s%s%s\n",
+ zfcp_get_busid_by_adapter(adapter),
+ (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_INCOMING_ELS) ?
+ ", incoming ELS" : "",
+ (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_SENSE_DATA) ?
+ ", sense data" : "",
+ (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_LINK_STATUS) ?
+ ", link status change" : "",
+ (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_PORT_CLOSED) ?
+ ", port close" : "",
+ (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_BIT_ERROR_THRESHOLD) ?
+ ", bit error exception" : "",
+ (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_ACT_UPDATED) ?
+ ", ACT update" : "",
+ (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_ACT_HARDENED) ?
+ ", ACT hardening" : "",
+ (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_FEATURE_UPDATE_ALERT) ?
+ ", adapter feature change" : "");
+
+ if (status_buffer->status_subtype &
+ FSF_STATUS_READ_SUB_ACT_UPDATED)
+ zfcp_erp_adapter_access_changed(adapter);
+ break;
+
case FSF_STATUS_READ_CFDC_UPDATED:
ZFCP_LOG_NORMAL("CFDC has been updated on the adapter %s\n",
zfcp_get_busid_by_adapter(adapter));
@@ -1954,6 +1988,7 @@ zfcp_fsf_exchange_config_data(struct zfc
erp_action->fsf_req->qtcb->bottom.config.feature_selection =
FSF_FEATURE_CFDC |
FSF_FEATURE_LUN_SHARING |
+ FSF_FEATURE_NOTIFICATION_LOST |
FSF_FEATURE_UPDATE_ALERT;
/* start QDIO request for this FSF request */
diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h
index 48719f0..39475db 100644
--- a/drivers/s390/scsi/zfcp_fsf.h
+++ b/drivers/s390/scsi/zfcp_fsf.h
@@ -166,6 +166,7 @@
#define FSF_STATUS_READ_BIT_ERROR_THRESHOLD 0x00000004
#define FSF_STATUS_READ_LINK_DOWN 0x00000005
#define FSF_STATUS_READ_LINK_UP 0x00000006
+#define FSF_STATUS_READ_NOTIFICATION_LOST 0x00000009
#define FSF_STATUS_READ_CFDC_UPDATED 0x0000000A
#define FSF_STATUS_READ_CFDC_HARDENED 0x0000000B
#define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C
@@ -179,6 +180,16 @@
#define FSF_STATUS_READ_SUB_FDISC_FAILED 0x00000001
#define FSF_STATUS_READ_SUB_FIRMWARE_UPDATE 0x00000002
+/* status subtypes for unsolicited status notification lost */
+#define FSF_STATUS_READ_SUB_INCOMING_ELS 0x00000001
+#define FSF_STATUS_READ_SUB_SENSE_DATA 0x00000002
+#define FSF_STATUS_READ_SUB_LINK_STATUS 0x00000004
+#define FSF_STATUS_READ_SUB_PORT_CLOSED 0x00000008
+#define FSF_STATUS_READ_SUB_BIT_ERROR_THRESHOLD 0x00000010
+#define FSF_STATUS_READ_SUB_ACT_UPDATED 0x00000020
+#define FSF_STATUS_READ_SUB_ACT_HARDENED 0x00000040
+#define FSF_STATUS_READ_SUB_FEATURE_UPDATE_ALERT 0x00000080
+
/* status subtypes for CFDC */
#define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE 0x00000002
#define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE2 0x0000000F
@@ -211,6 +222,7 @@
/* channel features */
#define FSF_FEATURE_CFDC 0x00000002
#define FSF_FEATURE_LUN_SHARING 0x00000004
+#define FSF_FEATURE_NOTIFICATION_LOST 0x00000008
#define FSF_FEATURE_HBAAPI_MANAGEMENT 0x00000010
#define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020
#define FSF_FEATURE_UPDATE_ALERT 0x00000100
--
0.99.9n-g58e3
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