s390/zcrypt: New config switch CONFIG_ZCRYPT_DEBUG (0ae88ccf) · Commits · 戴 / test

Introduce a new config switch CONFIG_ZCRYPT_DEBUG which will be used to enable some features for debugging the zcrypt device driver and ap bus system: Another patch will use this for displaying ap card and ap queue state information via sysfs attribute. A furher patch will use this to enable some special treatment for some fields of an crypto request to be able to inject failures and so help debugging with regards to handling of failures. Signed-off-by:

Harald Freudenberger <freude@linux.ibm.com> Signed-off-by:

Vasily Gorbik <gor@linux.ibm.com>

drivers/crypto/Kconfig

+20 −4

Original line number	Diff line number	Diff line
		@@ -71,10 +71,26 @@ config ZCRYPT
		help
		Select this option if you want to enable support for
		s390 cryptographic adapters like:
		+ PCI-X Cryptographic Coprocessor (PCIXCC)
		+ Crypto Express 2,3,4 or 5 Coprocessor (CEXxC)
		+ Crypto Express 2,3,4 or 5 Accelerator (CEXxA)
		+ Crypto Express 4 or 5 EP11 Coprocessor (CEXxP)
		+ Crypto Express 2 up to 7 Coprocessor (CEXxC)
		+ Crypto Express 2 up to 7 Accelerator (CEXxA)
		+ Crypto Express 4 up to 7 EP11 Coprocessor (CEXxP)

		config ZCRYPT_DEBUG
		bool "Enable debug features for s390 cryptographic adapters"
		default n
		depends on DEBUG_KERNEL
		depends on ZCRYPT
		help
		Say 'Y' here to enable some additional debug features on the
		s390 cryptographic adapters driver.

		There will be some more sysfs attributes displayed for ap cards
		and queues and some flags on crypto requests are interpreted as
		debugging messages to force error injection.

		Do not enable on production level kernel build.

		If unsure, say N.

		config ZCRYPT_MULTIDEVNODES
		bool "Support for multiple zcrypt device nodes"

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