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s390/zcryt: Handle AP configuration changes

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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>
This commit is contained in:
Holger Dengler
2012-09-10 21:34:26 +02:00
committed by Martin Schwidefsky
parent 745e967a49
commit dabecb2933
6 changed files with 201 additions and 9 deletions
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59
drivers/s390/crypto/zcrypt_debug.h Normal file
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@@ -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 */