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s390/ap: add error response code field for ap queue devices

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On AP instruction failures the last response code is now
kept in the struct ap_queue. There is also a new sysfs
attribute showing this field (enabled only on debug kernels).

Also slight rework of the AP_DBF macros to get some more
content into one debug feature message line.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Harald Freudenberger
2020-07-02 15:56:15 +02:00
committed by Vasily Gorbik
parent 0b641cbd24
commit 2ea2a6099a
4 changed files with 101 additions and 26 deletions
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8
drivers/s390/crypto/ap_debug.h
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@@ -20,6 +20,14 @@
#define AP_DBF(...) \
debug_sprintf_event(ap_dbf_info, ##__VA_ARGS__)
#define AP_DBF_ERR(...) \
debug_sprintf_event(ap_dbf_info, DBF_ERR, ##__VA_ARGS__)
#define AP_DBF_WARN(...) \
debug_sprintf_event(ap_dbf_info, DBF_WARN, ##__VA_ARGS__)
#define AP_DBF_INFO(...) \
debug_sprintf_event(ap_dbf_info, DBF_INFO, ##__VA_ARGS__)
#define AP_DBF_DBG(...) \
debug_sprintf_event(ap_dbf_info, DBF_DEBUG, ##__VA_ARGS__)
extern debug_info_t *ap_dbf_info;