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authorStefan Haberland <sth@linux.vnet.ibm.com>2017-12-19 15:18:38 (GMT)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2018-02-22 14:31:23 (GMT)
commitddc1c9453550eabd6284021b167f708982df3ca9 (patch)
treeb6d014c22cc3693ae1dc5a447459473cc890d022 /arch/s390/include/uapi/asm
parent66aec647216f129b8560dba738303a8486481c53 (diff)
s390/dasd: configurable IFCC handling
Make the behavior in case of constant IFCC/CCC errors configurable. Add a sysfs attribute to switch between path disabled after threshold exceeded (default) and message only. Reviewed-by: Jan Hoeppner <hoeppner@linux.vnet.ibm.com> Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/uapi/asm')
-rw-r--r--arch/s390/include/uapi/asm/dasd.h38
1 files changed, 20 insertions, 18 deletions
diff --git a/arch/s390/include/uapi/asm/dasd.h b/arch/s390/include/uapi/asm/dasd.h
index 451c601..832be5c 100644
--- a/arch/s390/include/uapi/asm/dasd.h
+++ b/arch/s390/include/uapi/asm/dasd.h
@@ -68,25 +68,27 @@ typedef struct dasd_information2_t {
#define DASD_FORMAT_CDL 2
/*
* values to be used for dasd_information_t.features
- * 0x00: default features
- * 0x01: readonly (ro)
- * 0x02: use diag discipline (diag)
- * 0x04: set the device initially online (internal use only)
- * 0x08: enable ERP related logging
- * 0x10: allow I/O to fail on lost paths
- * 0x20: allow I/O to fail when a lock was stolen
- * 0x40: give access to raw eckd data
- * 0x80: enable discard support
+ * 0x100: default features
+ * 0x001: readonly (ro)
+ * 0x002: use diag discipline (diag)
+ * 0x004: set the device initially online (internal use only)
+ * 0x008: enable ERP related logging
+ * 0x010: allow I/O to fail on lost paths
+ * 0x020: allow I/O to fail when a lock was stolen
+ * 0x040: give access to raw eckd data
+ * 0x080: enable discard support
+ * 0x100: enable autodisable for IFCC errors (default)
*/
-#define DASD_FEATURE_DEFAULT 0x00
-#define DASD_FEATURE_READONLY 0x01
-#define DASD_FEATURE_USEDIAG 0x02
-#define DASD_FEATURE_INITIAL_ONLINE 0x04
-#define DASD_FEATURE_ERPLOG 0x08
-#define DASD_FEATURE_FAILFAST 0x10
-#define DASD_FEATURE_FAILONSLCK 0x20
-#define DASD_FEATURE_USERAW 0x40
-#define DASD_FEATURE_DISCARD 0x80
+#define DASD_FEATURE_READONLY 0x001
+#define DASD_FEATURE_USEDIAG 0x002
+#define DASD_FEATURE_INITIAL_ONLINE 0x004
+#define DASD_FEATURE_ERPLOG 0x008
+#define DASD_FEATURE_FAILFAST 0x010
+#define DASD_FEATURE_FAILONSLCK 0x020
+#define DASD_FEATURE_USERAW 0x040
+#define DASD_FEATURE_DISCARD 0x080
+#define DASD_FEATURE_PATH_AUTODISABLE 0x100
+#define DASD_FEATURE_DEFAULT DASD_FEATURE_PATH_AUTODISABLE
#define DASD_PARTN_BITS 2

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