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authorSebastian Ott <sebott@linux.vnet.ibm.com>2011-01-05 12:47:56 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2011-01-05 12:47:28 +0100
commitce322ccd53f2505cf8b0ed204631d6ac054ac66a (patch)
treec3b9b9145d691b3c8a389be9299b96b574b8f69e /drivers/s390/cio/chsc.h
parent37e8952174c6c239d1c86125e032fd6ad107a3e6 (diff)
downloadvexpress-lsk-ce322ccd53f2505cf8b0ed204631d6ac054ac66a.tar.gz
[S390] cio: obtain mdc value per channel path
Add support to accumulate the number of 64K-bytes blocks all paths to a device at least support for a transport command. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/chsc.h')
-rw-r--r--drivers/s390/cio/chsc.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 6693f5e3176..3f15b2aaeae 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -35,6 +35,22 @@ struct channel_path_desc {
u8 chpp;
} __attribute__ ((packed));
+struct channel_path_desc_fmt1 {
+ u8 flags;
+ u8 lsn;
+ u8 desc;
+ u8 chpid;
+ u32:24;
+ u8 chpp;
+ u32 unused[3];
+ u16 mdc;
+ u16:13;
+ u8 r:1;
+ u8 s:1;
+ u8 f:1;
+ u32 zeros[2];
+} __attribute__ ((packed));
+
struct channel_path;
struct css_chsc_char {
@@ -92,6 +108,8 @@ int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
int c, int m, void *page);
int chsc_determine_base_channel_path_desc(struct chp_id chpid,
struct channel_path_desc *desc);
+int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
+ struct channel_path_desc_fmt1 *desc);
void chsc_chp_online(struct chp_id chpid);
void chsc_chp_offline(struct chp_id chpid);
int chsc_get_channel_measurement_chars(struct channel_path *chp);