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4434a38c37
- Localize more of the init calls in init_channel_subsystem(). - Print a warning if init_channel_subsystem() failed. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
#ifndef S390_CHSC_H
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#define S390_CHSC_H
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#include <linux/types.h>
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#include <linux/device.h>
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#include <asm/chpid.h>
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#include "schid.h"
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#define CHSC_SDA_OC_MSS 0x2
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struct chsc_header {
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u16 length;
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u16 code;
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} __attribute__ ((packed));
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#define NR_MEASUREMENT_CHARS 5
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struct cmg_chars {
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u32 values[NR_MEASUREMENT_CHARS];
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} __attribute__ ((packed));
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#define NR_MEASUREMENT_ENTRIES 8
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struct cmg_entry {
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u32 values[NR_MEASUREMENT_ENTRIES];
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} __attribute__ ((packed));
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struct channel_path_desc {
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u8 flags;
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u8 lsn;
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u8 desc;
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u8 chpid;
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u8 swla;
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u8 zeroes;
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u8 chla;
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u8 chpp;
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} __attribute__ ((packed));
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struct channel_path;
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extern void chsc_process_crw(void);
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struct css_general_char {
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u64 : 41;
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u32 aif : 1; /* bit 41 */
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u32 : 3;
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u32 mcss : 1; /* bit 45 */
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u32 : 2;
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u32 ext_mb : 1; /* bit 48 */
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u32 : 7;
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u32 aif_tdd : 1; /* bit 56 */
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u32 : 1;
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u32 qebsm : 1; /* bit 58 */
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u32 : 8;
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u32 aif_osa : 1; /* bit 67 */
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u32 : 28;
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}__attribute__((packed));
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struct css_chsc_char {
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u64 res;
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u64 : 20;
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u32 secm : 1; /* bit 84 */
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u32 : 1;
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u32 scmc : 1; /* bit 86 */
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u32 : 20;
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u32 scssc : 1; /* bit 107 */
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u32 scsscf : 1; /* bit 108 */
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u32 : 19;
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}__attribute__((packed));
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extern struct css_general_char css_general_characteristics;
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extern struct css_chsc_char css_chsc_characteristics;
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struct chsc_ssd_info {
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u8 path_mask;
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u8 fla_valid_mask;
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struct chp_id chpid[8];
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u16 fla[8];
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};
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extern int chsc_get_ssd_info(struct subchannel_id schid,
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struct chsc_ssd_info *ssd);
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extern int chsc_determine_css_characteristics(void);
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extern int css_characteristics_avail;
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extern int chsc_alloc_sei_area(void);
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extern void chsc_free_sei_area(void);
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extern int chsc_enable_facility(int);
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struct channel_subsystem;
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extern int chsc_secm(struct channel_subsystem *, int);
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int chsc_chp_vary(struct chp_id chpid, int on);
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int chsc_determine_channel_path_description(struct chp_id chpid,
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struct channel_path_desc *desc);
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void chsc_chp_online(struct chp_id chpid);
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void chsc_chp_offline(struct chp_id chpid);
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int chsc_get_channel_measurement_chars(struct channel_path *chp);
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#endif
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