[S390] cio: Channel-path configure function.

Add a new attribute to the channel-path sysfs directory through which
channel-path configure operations can be triggered. Also listen for
hardware events requesting channel-path configure operations and
process them accordingly.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

1 files changed, 18 insertions, 2 deletions

diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h
index ac2b1a9c3bc2..862af69d9707 100644
--- a/drivers/s390/cio/chp.h
+++ b/drivers/s390/cio/chp.h
@@ -10,10 +10,23 @@
 
 #include <linux/types.h>
 #include <linux/device.h>
-
-#include "chpid.h"
+#include <asm/chpid.h>
 #include "chsc.h"
 
+#define CHP_STATUS_STANDBY              0
+#define CHP_STATUS_CONFIGURED           1
+#define CHP_STATUS_RESERVED             2
+#define CHP_STATUS_NOT_RECOGNIZED       3
+
+static inline int chp_test_bit(u8 *bitmap, int num)
+{
+        int byte = num >> 3;
+        int mask = 128 >> (num & 7);
+
+        return (bitmap[byte] & mask) ? 1 : 0;
+}
+
+
 struct channel_path {
         struct chp_id chpid;
         int state;
@@ -33,5 +46,8 @@ int chp_process_crw(int id, int available);
 void chp_remove_cmg_attr(struct channel_path *chp);
 int chp_add_cmg_attr(struct channel_path *chp);
 int chp_new(struct chp_id chpid);
+void chp_cfg_schedule(struct chp_id chpid, int configure);
+void chp_cfg_cancel_deconfigure(struct chp_id chpid);
+int chp_info_get_status(struct chp_id chpid);
 
 #endif /* S390_CHP_H */