Commit 123b7c7c authored by Harald Freudenberger's avatar Harald Freudenberger Committed by Alexander Gordeev
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s390/ap: Unmask SLCF bit in card and queue ap functions sysfs 



The SLCF bit ("stateless command filtering") introduced with
CEX8 cards was because of the function mask's default value
suppressed when user space read the ap function for an AP
card or queue. Unmask this bit so that user space applications
like lszcrypt can evaluate and list this feature.

Fixes: d4c53ae8 ("s390/ap: store TAPQ hwinfo in struct ap_card")
Signed-off-by: default avatarHarald Freudenberger <freude@linux.ibm.com>
Reviewed-by: default avatarHolger Dengler <dengler@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
parent bc46b7cb

arch/s390/include/asm/ap.h

+1 −1
Original line number Diff line number Diff line
@@ -103,7 +103,7 @@ struct ap_tapq_hwinfo { 
			unsigned int accel :  1; /* A */

			unsigned int ep11  :  1; /* X */

			unsigned int apxa  :  1; /* APXA */

			unsigned int	   :  1;

			unsigned int slcf  :  1; /* Cmd filtering avail. */

			unsigned int class :  8;

			unsigned int bs	   :  2; /* SE bind/assoc */

			unsigned int	   : 14;

drivers/s390/crypto/ap_bus.h

+1 −1
Original line number Diff line number Diff line
@@ -180,7 +180,7 @@ struct ap_card { 
	atomic64_t total_request_count;	/* # requests ever for this AP device.*/

};



#define TAPQ_CARD_HWINFO_MASK 0xFEFF0000FFFF0F0FUL

#define TAPQ_CARD_HWINFO_MASK 0xFFFF0000FFFF0F0FUL

#define ASSOC_IDX_INVALID 0x10000



#define to_ap_card(x) container_of((x), struct ap_card, ap_dev.device)