Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / s390 / cio / chp.h

diff --git a/kernel/drivers/s390/cio/chp.h b/kernel/drivers/s390/cio/chp.h
new file mode 100644 (file)
index 0000000..4efd5b8
--- /dev/null
+++ b/kernel/drivers/s390/cio/chp.h
@@ -0,0 +1,72 @@
+/*
+ *    Copyright IBM Corp. 2007, 2010
+ *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef S390_CHP_H
+#define S390_CHP_H S390_CHP_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <asm/chpid.h>
+#include "chsc.h"
+#include "css.h"
+
+#define CHP_STATUS_STANDBY             0
+#define CHP_STATUS_CONFIGURED          1
+#define CHP_STATUS_RESERVED            2
+#define CHP_STATUS_NOT_RECOGNIZED      3
+
+#define CHP_ONLINE 0
+#define CHP_OFFLINE 1
+#define CHP_VARY_ON 2
+#define CHP_VARY_OFF 3
+
+struct chp_link {
+       struct chp_id chpid;
+       u32 fla_mask;
+       u16 fla;
+};
+
+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 device dev;
+       struct chp_id chpid;
+       struct mutex lock; /* Serialize access to below members. */
+       int state;
+       struct channel_path_desc desc;
+       struct channel_path_desc_fmt1 desc_fmt1;
+       /* Channel-measurement related stuff: */
+       int cmg;
+       int shared;
+       void *cmg_chars;
+};
+
+/* Return channel_path struct for given chpid. */
+static inline struct channel_path *chpid_to_chp(struct chp_id chpid)
+{
+       return channel_subsystems[chpid.cssid]->chps[chpid.id];
+}
+
+int chp_get_status(struct chp_id chpid);
+u8 chp_get_sch_opm(struct subchannel *sch);
+int chp_is_registered(struct chp_id chpid);
+struct channel_path_desc *chp_get_chp_desc(struct chp_id chpid);
+void chp_remove_cmg_attr(struct channel_path *chp);
+int chp_add_cmg_attr(struct channel_path *chp);
+int chp_update_desc(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);
+int chp_ssd_get_mask(struct chsc_ssd_info *, struct chp_link *);
+#endif /* S390_CHP_H */