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-rw-r--r--drivers/s390/cio/chp.c1
-rw-r--r--drivers/s390/cio/chp.h1
-rw-r--r--drivers/s390/cio/chsc.c3
-rw-r--r--drivers/s390/cio/chsc.h7
4 files changed, 12 insertions, 0 deletions
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c
index 34315e65c1c8..41ecc08b1cf7 100644
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -431,6 +431,7 @@ int chp_update_desc(struct channel_path *chp)
* hypervisors implement the required chsc commands.
*/
chsc_determine_fmt1_channel_path_desc(chp->chpid, &chp->desc_fmt1);
+ chsc_determine_fmt3_channel_path_desc(chp->chpid, &chp->desc_fmt3);
chsc_get_channel_measurement_chars(chp);
return 0;
diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h
index 6d2bfbbead66..20259f3fbf45 100644
--- a/drivers/s390/cio/chp.h
+++ b/drivers/s390/cio/chp.h
@@ -46,6 +46,7 @@ struct channel_path {
int state;
struct channel_path_desc_fmt0 desc;
struct channel_path_desc_fmt1 desc_fmt1;
+ struct channel_path_desc_fmt3 desc_fmt3;
/* Channel-measurement related stuff: */
int cmg;
int shared;
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 65290e5ac854..6652a49a49b1 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -915,6 +915,8 @@ int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
return -EINVAL;
if ((rfmt == 2) && !css_general_characteristics.cib)
return -EINVAL;
+ if ((rfmt == 3) && !css_general_characteristics.util_str)
+ return -EINVAL;
memset(page, 0, PAGE_SIZE);
scpd_area = page;
@@ -963,6 +965,7 @@ out: \
chsc_det_chp_desc(0, 0)
chsc_det_chp_desc(1, 1)
+chsc_det_chp_desc(3, 0)
static void
chsc_initialize_cmg_chars(struct channel_path *chp, u8 cmcv,
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index bdf2cc90e5ef..5c9f0dd33f4e 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -40,6 +40,11 @@ struct channel_path_desc_fmt1 {
u32 zeros[2];
} __attribute__ ((packed));
+struct channel_path_desc_fmt3 {
+ struct channel_path_desc_fmt1 fmt1_desc;
+ u8 util_str[64];
+};
+
struct channel_path;
struct css_chsc_char {
@@ -151,6 +156,8 @@ int chsc_determine_fmt0_channel_path_desc(struct chp_id chpid,
struct channel_path_desc_fmt0 *desc);
int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
struct channel_path_desc_fmt1 *desc);
+int chsc_determine_fmt3_channel_path_desc(struct chp_id chpid,
+ struct channel_path_desc_fmt3 *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);
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