[PATCH] s390: channel path measurements
Gather extended measurements for channel paths from the channel subsystem and
expose them to userspace via a sysfs attribute.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 3e75095..a259245 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -12,6 +12,16 @@
u16 code;
};
+#define NR_MEASUREMENT_CHARS 5
+struct cmg_chars {
+ u32 values[NR_MEASUREMENT_CHARS];
+};
+
+#define NR_MEASUREMENT_ENTRIES 8
+struct cmg_entry {
+ u32 values[NR_MEASUREMENT_ENTRIES];
+};
+
struct channel_path_desc {
u8 flags;
u8 lsn;
@@ -27,6 +37,10 @@
int id;
int state;
struct channel_path_desc desc;
+ /* Channel-measurement related stuff: */
+ int cmg;
+ int shared;
+ void *cmg_chars;
struct device dev;
};
@@ -52,7 +66,11 @@
struct css_chsc_char {
u64 res;
- u64 : 43;
+ u64 : 20;
+ u32 secm : 1; /* bit 84 */
+ u32 : 1;
+ u32 scmc : 1; /* bit 86 */
+ u32 : 20;
u32 scssc : 1; /* bit 107 */
u32 scsscf : 1; /* bit 108 */
u32 : 19;
@@ -67,6 +85,8 @@
extern void *chsc_get_chp_desc(struct subchannel*, int);
extern int chsc_enable_facility(int);
+struct channel_subsystem;
+extern int chsc_secm(struct channel_subsystem *, int);
#define to_channelpath(device) container_of(device, struct channel_path, dev)