arch/s390/include/uapi/asm/qeth.h

Source file repositories/reference/linux-study-clean/arch/s390/include/uapi/asm/qeth.h

File Facts

System
Linux kernel
Corpus path
arch/s390/include/uapi/asm/qeth.h
Extension
.h
Size
3119 bytes
Lines
117
Domain
Architecture Layer
Bucket
arch/s390
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

struct qeth_arp_cache_entry {
	__u8  macaddr[6];
	__u8  reserved1[2];
	__u8  ipaddr[16]; /* for both  IPv4 and IPv6 */
	__u8  reserved2[32];
} __attribute__ ((packed));

enum qeth_arp_ipaddrtype {
	QETHARP_IP_ADDR_V4 = 1,
	QETHARP_IP_ADDR_V6 = 2,
};
struct qeth_arp_entrytype {
	__u8 mac;
	__u8 ip;
} __attribute__((packed));

#define QETH_QARP_MEDIASPECIFIC_BYTES 32
#define QETH_QARP_MACADDRTYPE_BYTES 1
struct qeth_arp_qi_entry7 {
	__u8 media_specific[QETH_QARP_MEDIASPECIFIC_BYTES];
	struct qeth_arp_entrytype type;
	__u8 macaddr[6];
	__u8 ipaddr[4];
} __attribute__((packed));

struct qeth_arp_qi_entry7_ipv6 {
	__u8 media_specific[QETH_QARP_MEDIASPECIFIC_BYTES];
	struct qeth_arp_entrytype type;
	__u8 macaddr[6];
	__u8 ipaddr[16];
} __attribute__((packed));

struct qeth_arp_qi_entry7_short {
	struct qeth_arp_entrytype type;
	__u8 macaddr[6];
	__u8 ipaddr[4];
} __attribute__((packed));

struct qeth_arp_qi_entry7_short_ipv6 {
	struct qeth_arp_entrytype type;
	__u8 macaddr[6];
	__u8 ipaddr[16];
} __attribute__((packed));

struct qeth_arp_qi_entry5 {
	__u8 media_specific[QETH_QARP_MEDIASPECIFIC_BYTES];
	struct qeth_arp_entrytype type;
	__u8 ipaddr[4];
} __attribute__((packed));

struct qeth_arp_qi_entry5_ipv6 {
	__u8 media_specific[QETH_QARP_MEDIASPECIFIC_BYTES];
	struct qeth_arp_entrytype type;
	__u8 ipaddr[16];
} __attribute__((packed));

struct qeth_arp_qi_entry5_short {
	struct qeth_arp_entrytype type;
	__u8 ipaddr[4];
} __attribute__((packed));

struct qeth_arp_qi_entry5_short_ipv6 {
	struct qeth_arp_entrytype type;
	__u8 ipaddr[16];
} __attribute__((packed));
/*
 * can be set by user if no "media specific information" is wanted
 * -> saves a lot of space in user space buffer
 */
#define QETH_QARP_STRIP_ENTRIES  0x8000
#define QETH_QARP_WITH_IPV6	 0x4000
#define QETH_QARP_REQUEST_MASK   0x00ff

/* data sent to user space as result of query arp ioctl */
#define QETH_QARP_USER_DATA_SIZE 20000
#define QETH_QARP_MASK_OFFSET    4
#define QETH_QARP_ENTRIES_OFFSET 6
struct qeth_arp_query_user_data {
	union {
		__u32 data_len;		/* set by user space program */
		__u32 no_entries;	/* set by kernel */
	} u;
	__u16 mask_bits;
	char *entries;
} __attribute__((packed));

struct qeth_query_oat_data {
	__u32 command;
	__u32 buffer_len;
	__u32 response_len;

Annotation

Implementation Notes