mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 04:11:49 +00:00
ce322ccd53
Add support to accumulate the number of 64K-bytes blocks all paths to a device at least support for a transport command. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
122 lines
2.5 KiB
C
122 lines
2.5 KiB
C
#ifndef S390_CHSC_H
|
|
#define S390_CHSC_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/device.h>
|
|
#include <asm/chpid.h>
|
|
#include <asm/chsc.h>
|
|
#include <asm/schid.h>
|
|
|
|
#define CHSC_SDA_OC_MSS 0x2
|
|
|
|
struct chsc_header {
|
|
u16 length;
|
|
u16 code;
|
|
} __attribute__ ((packed));
|
|
|
|
#define NR_MEASUREMENT_CHARS 5
|
|
struct cmg_chars {
|
|
u32 values[NR_MEASUREMENT_CHARS];
|
|
} __attribute__ ((packed));
|
|
|
|
#define NR_MEASUREMENT_ENTRIES 8
|
|
struct cmg_entry {
|
|
u32 values[NR_MEASUREMENT_ENTRIES];
|
|
} __attribute__ ((packed));
|
|
|
|
struct channel_path_desc {
|
|
u8 flags;
|
|
u8 lsn;
|
|
u8 desc;
|
|
u8 chpid;
|
|
u8 swla;
|
|
u8 zeroes;
|
|
u8 chla;
|
|
u8 chpp;
|
|
} __attribute__ ((packed));
|
|
|
|
struct channel_path_desc_fmt1 {
|
|
u8 flags;
|
|
u8 lsn;
|
|
u8 desc;
|
|
u8 chpid;
|
|
u32:24;
|
|
u8 chpp;
|
|
u32 unused[3];
|
|
u16 mdc;
|
|
u16:13;
|
|
u8 r:1;
|
|
u8 s:1;
|
|
u8 f:1;
|
|
u32 zeros[2];
|
|
} __attribute__ ((packed));
|
|
|
|
struct channel_path;
|
|
|
|
struct css_chsc_char {
|
|
u64 res;
|
|
u64 : 20;
|
|
u32 secm : 1; /* bit 84 */
|
|
u32 : 1;
|
|
u32 scmc : 1; /* bit 86 */
|
|
u32 : 20;
|
|
u32 scssc : 1; /* bit 107 */
|
|
u32 scsscf : 1; /* bit 108 */
|
|
u32 : 19;
|
|
}__attribute__((packed));
|
|
|
|
extern struct css_chsc_char css_chsc_characteristics;
|
|
|
|
struct chsc_ssd_info {
|
|
u8 path_mask;
|
|
u8 fla_valid_mask;
|
|
struct chp_id chpid[8];
|
|
u16 fla[8];
|
|
};
|
|
|
|
struct chsc_scpd {
|
|
struct chsc_header request;
|
|
u32:2;
|
|
u32 m:1;
|
|
u32 c:1;
|
|
u32 fmt:4;
|
|
u32 cssid:8;
|
|
u32:4;
|
|
u32 rfmt:4;
|
|
u32 first_chpid:8;
|
|
u32:24;
|
|
u32 last_chpid:8;
|
|
u32 zeroes1;
|
|
struct chsc_header response;
|
|
u8 data[PAGE_SIZE - 20];
|
|
} __attribute__ ((packed));
|
|
|
|
|
|
extern int chsc_get_ssd_info(struct subchannel_id schid,
|
|
struct chsc_ssd_info *ssd);
|
|
extern int chsc_determine_css_characteristics(void);
|
|
extern int chsc_init(void);
|
|
extern void chsc_init_cleanup(void);
|
|
|
|
extern int chsc_enable_facility(int);
|
|
struct channel_subsystem;
|
|
extern int chsc_secm(struct channel_subsystem *, int);
|
|
int __chsc_do_secm(struct channel_subsystem *css, int enable);
|
|
|
|
int chsc_chp_vary(struct chp_id chpid, int on);
|
|
int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
|
|
int c, int m, void *page);
|
|
int chsc_determine_base_channel_path_desc(struct chp_id chpid,
|
|
struct channel_path_desc *desc);
|
|
int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
|
|
struct channel_path_desc_fmt1 *desc);
|
|
void chsc_chp_online(struct chp_id chpid);
|
|
void chsc_chp_offline(struct chp_id chpid);
|
|
int chsc_get_channel_measurement_chars(struct channel_path *chp);
|
|
|
|
int chsc_error_from_response(int response);
|
|
|
|
int chsc_siosl(struct subchannel_id schid);
|
|
|
|
#endif
|