s390/zcryt: Handle AP configuration changes
Detect external AP bus configuration changes and request
an AP device rescan.
Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/crypto/zcrypt_debug.h b/drivers/s390/crypto/zcrypt_debug.h
new file mode 100644
index 0000000..841ea72
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_debug.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright IBM Corp. 2012
+ * Author(s): Holger Dengler (hd@linux.vnet.ibm.com)
+ */
+#ifndef ZCRYPT_DEBUG_H
+#define ZCRYPT_DEBUG_H
+
+#include <asm/debug.h>
+#include "zcrypt_api.h"
+
+/* that gives us 15 characters in the text event views */
+#define ZCRYPT_DBF_LEN 16
+
+/* sort out low debug levels early to avoid wasted sprints */
+static inline int zcrypt_dbf_passes(debug_info_t *dbf_grp, int level)
+{
+ return (level <= dbf_grp->level);
+}
+
+#define DBF_ERR 3 /* error conditions */
+#define DBF_WARN 4 /* warning conditions */
+#define DBF_INFO 6 /* informational */
+
+#define RC2WARN(rc) ((rc) ? DBF_WARN : DBF_INFO)
+
+#define ZCRYPT_DBF_COMMON(level, text...) \
+ do { \
+ if (zcrypt_dbf_passes(zcrypt_dbf_common, level)) { \
+ char debug_buffer[ZCRYPT_DBF_LEN]; \
+ snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+ debug_text_event(zcrypt_dbf_common, level, \
+ debug_buffer); \
+ } \
+ } while (0)
+
+#define ZCRYPT_DBF_DEVICES(level, text...) \
+ do { \
+ if (zcrypt_dbf_passes(zcrypt_dbf_devices, level)) { \
+ char debug_buffer[ZCRYPT_DBF_LEN]; \
+ snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+ debug_text_event(zcrypt_dbf_devices, level, \
+ debug_buffer); \
+ } \
+ } while (0)
+
+#define ZCRYPT_DBF_DEV(level, device, text...) \
+ do { \
+ if (zcrypt_dbf_passes(device->dbf_area, level)) { \
+ char debug_buffer[ZCRYPT_DBF_LEN]; \
+ snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
+ debug_text_event(device->dbf_area, level, \
+ debug_buffer); \
+ } \
+ } while (0)
+
+int zcrypt_debug_init(void);
+void zcrypt_debug_exit(void);
+
+#endif /* ZCRYPT_DEBUG_H */