torvalds/linux
torvalds/linux
2
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Code

s390/ap: Unmask SLCF bit in card and queue ap functions sysfs

Browse Source 
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: d4c53ae8e4 ("s390/ap: store TAPQ hwinfo in struct ap_card")
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Harald Freudenberger 2025-07-23 15:39:12 +02:00 committed by Alexander Gordeev
parent bc46b7cbc5
commit 123b7c7c2b
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/s390/include/asm/ap.h
View File

@ -103,7 +103,7 @@ struct ap_tapq_hwinfo {
unsigned int accel : 1; /* A */ unsigned int accel : 1; /* A */
unsigned int ep11 : 1; /* X */ unsigned int ep11 : 1; /* X */
unsigned int apxa : 1; /* APXA */ unsigned int apxa : 1; /* APXA */
unsigned int : 1; unsigned int slcf : 1; /* Cmd filtering avail. */
unsigned int class : 8; unsigned int class : 8;
unsigned int bs : 2; /* SE bind/assoc */ unsigned int bs : 2; /* SE bind/assoc */
unsigned int : 14; unsigned int : 14;

2
drivers/s390/crypto/ap_bus.h
View File

@ -180,7 +180,7 @@ struct ap_card {
atomic64_t total_request_count; /* # requests ever for this AP device.*/ 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 ASSOC_IDX_INVALID 0x10000
#define to_ap_card(x) container_of((x), struct ap_card, ap_dev.device) #define to_ap_card(x) container_of((x), struct ap_card, ap_dev.device)