FM / asm

/usr/src/linux-headers-5.15.0-181/arch/s390/include/uapi/asm/

/usr/src/linux-headers-5.15.0-181/arch/s390/include/uapi/asm

Name	Size	Mode	Actions
auxvec.h	214	0644	edit dl rm
bitsperlong.h	293	0644	edit dl rm
bpf_perf_event.h	250	0644	edit dl rm
byteorder.h	188	0644	edit dl rm
chpid.h	456	0644	edit dl rm
chsc.h	2903	0644	edit dl rm
clp.h	549	0644	edit dl rm
cmb.h	1919	0644	edit dl rm
dasd.h	12658	0644	edit dl rm
guarded_storage.h	1208	0644	edit dl rm
hwctrset.h	1689	0644	edit dl rm
hypfs.h	1382	0644	edit dl rm
ioctls.h	191	0644	edit dl rm
ipcbuf.h	770	0644	edit dl rm
ipl.h	3297	0644	edit dl rm
Kbuild	90	0644	edit dl rm
kvm.h	8269	0644	edit dl rm
kvm_para.h	224	0644	edit dl rm
kvm_perf.h	474	0644	edit dl rm
monwriter.h	939	0644	edit dl rm
perf_regs.h	887	0644	edit dl rm
pkey.h	20741	0644	edit dl rm
posix_types.h	1594	0644	edit dl rm
ptrace.h	11719	0644	edit dl rm
qeth.h	3119	0644	edit dl rm
runtime_instr.h	1424	0644	edit dl rm
schid.h	380	0644	edit dl rm
sclp_ctl.h	465	0644	edit dl rm
setup.h	256	0644	edit dl rm
sie.h	9469	0644	edit dl rm
sigcontext.h	1772	0644	edit dl rm
signal.h	3056	0644	edit dl rm
stat.h	2966	0644	edit dl rm
statfs.h	1058	0644	edit dl rm
sthyi.h	178	0644	edit dl rm
tape390.h	2830	0644	edit dl rm
termios.h	1170	0644	edit dl rm
types.h	525	0644	edit dl rm
ucontext.h	1207	0644	edit dl rm
unistd.h	326	0644	edit dl rm
uvdevice.h	1668	0644	edit dl rm
virtio-ccw.h	444	0644	edit dl rm
vmcp.h	737	0644	edit dl rm
vtoc.h	7539	0644	edit dl rm
zcrypt.h	11426	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/arch/s390/include/uapi/asm/tape390.h (2830B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*************************************************************************
 *
 *	   enables user programs to display messages and control encryption
 *	   on s390 tape devices
 *
 *	   Copyright IBM Corp. 2001, 2006
 *	   Author(s): Michael Holzheu <holzheu@de.ibm.com>
 *
 *************************************************************************/

#ifndef _TAPE390_H
#define _TAPE390_H

#define TAPE390_DISPLAY _IOW('d', 1, struct display_struct)

/*
 * The TAPE390_DISPLAY ioctl calls the Load Display command
 * which transfers 17 bytes of data from the channel to the subsystem:
 *     - 1 format control byte, and
 *     - two 8-byte messages
 *
 * Format control byte:
 *   0-2: New Message Overlay
 *     3: Alternate Messages
 *     4: Blink Message
 *     5: Display Low/High Message
 *     6: Reserved
 *     7: Automatic Load Request
 *
 */

typedef struct display_struct {
        char cntrl;
        char message1[8];
        char message2[8];
} display_struct;

/*
 * Tape encryption support
 */

struct tape390_crypt_info {
	char capability;
	char status;
	char medium_status;
} __attribute__ ((packed));

/* Macros for "capable" field */
#define TAPE390_CRYPT_SUPPORTED_MASK 0x01
#define TAPE390_CRYPT_SUPPORTED(x) \
	((x.capability & TAPE390_CRYPT_SUPPORTED_MASK))

/* Macros for "status" field */
#define TAPE390_CRYPT_ON_MASK 0x01
#define TAPE390_CRYPT_ON(x) (((x.status) & TAPE390_CRYPT_ON_MASK))

/* Macros for "medium status" field */
#define TAPE390_MEDIUM_LOADED_MASK 0x01
#define TAPE390_MEDIUM_ENCRYPTED_MASK 0x02
#define TAPE390_MEDIUM_ENCRYPTED(x) \
	(((x.medium_status) & TAPE390_MEDIUM_ENCRYPTED_MASK))
#define TAPE390_MEDIUM_LOADED(x) \
	(((x.medium_status) & TAPE390_MEDIUM_LOADED_MASK))

/*
 * The TAPE390_CRYPT_SET ioctl is used to switch on/off encryption.
 * The "encryption_capable" and "tape_status" fields are ignored for this ioctl!
 */
#define TAPE390_CRYPT_SET _IOW('d', 2, struct tape390_crypt_info)

/*
 * The TAPE390_CRYPT_QUERY ioctl is used to query the encryption state.
 */
#define TAPE390_CRYPT_QUERY _IOR('d', 3, struct tape390_crypt_info)

/* Values for "kekl1/2_type" and "kekl1/2_type_on_tape" fields */
#define TAPE390_KEKL_TYPE_NONE 0
#define TAPE390_KEKL_TYPE_LABEL 1
#define TAPE390_KEKL_TYPE_HASH 2

struct tape390_kekl {
	unsigned char type;
	unsigned char type_on_tape;
	char label[65];
} __attribute__ ((packed));

struct tape390_kekl_pair {
	struct tape390_kekl kekl[2];
} __attribute__ ((packed));

/*
 * The TAPE390_KEKL_SET ioctl is used to set Key Encrypting Key labels.
 */
#define TAPE390_KEKL_SET _IOW('d', 4, struct tape390_kekl_pair)

/*
 * The TAPE390_KEKL_QUERY ioctl is used to query Key Encrypting Key labels.
 */
#define TAPE390_KEKL_QUERY _IOR('d', 5, struct tape390_kekl_pair)

#endif

cmd: