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223 lines
4.7 KiB
223 lines
4.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#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/css_chars.h> |
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#include <asm/chpid.h> |
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#include <asm/chsc.h> |
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#include <asm/schid.h> |
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#include <asm/qdio.h> |
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#define CHSC_SDA_OC_MSS 0x2 |
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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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}; |
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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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}; |
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struct channel_path_desc_fmt1 { |
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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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u32:16; |
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u8 esc; |
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u8 chpp; |
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u32 unused[2]; |
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u16 chid; |
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u32:16; |
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u16 mdc; |
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u16:13; |
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u8 r:1; |
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u8 s:1; |
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u8 f:1; |
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u32 zeros[2]; |
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}; |
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struct channel_path_desc_fmt3 { |
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struct channel_path_desc_fmt1 fmt1_desc; |
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u8 util_str[64]; |
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}; |
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struct channel_path; |
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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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u32:7; |
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u32 pnso:1; /* bit 116 */ |
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u32:11; |
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} __packed; |
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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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struct chsc_ssqd_area { |
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struct chsc_header request; |
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u16:10; |
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u8 ssid:2; |
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u8 fmt:4; |
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u16 first_sch; |
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u16:16; |
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u16 last_sch; |
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u32:32; |
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struct chsc_header response; |
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u32:32; |
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struct qdio_ssqd_desc qdio_ssqd; |
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} __packed __aligned(PAGE_SIZE); |
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struct chsc_scssc_area { |
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struct chsc_header request; |
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u16 operation_code; |
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u16:16; |
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u32:32; |
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u32:32; |
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u64 summary_indicator_addr; |
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u64 subchannel_indicator_addr; |
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u32 ks:4; |
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u32 kc:4; |
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u32:21; |
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u32 isc:3; |
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u32 word_with_d_bit; |
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u32:32; |
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struct subchannel_id schid; |
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u32 reserved[1004]; |
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struct chsc_header response; |
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u32:32; |
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} __packed __aligned(PAGE_SIZE); |
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struct chsc_scpd { |
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struct chsc_header request; |
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u32:2; |
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u32 m:1; |
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u32 c:1; |
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u32 fmt:4; |
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u32 cssid:8; |
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u32:4; |
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u32 rfmt:4; |
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u32 first_chpid:8; |
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u32:24; |
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u32 last_chpid:8; |
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u32 zeroes1; |
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struct chsc_header response; |
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u32:32; |
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u8 data[0]; |
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} __packed __aligned(PAGE_SIZE); |
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struct chsc_sda_area { |
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struct chsc_header request; |
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u8 :4; |
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u8 format:4; |
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u8 :8; |
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u16 operation_code; |
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u32 :32; |
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u32 :32; |
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u32 operation_data_area[252]; |
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struct chsc_header response; |
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u32 :4; |
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u32 format2:4; |
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u32 :24; |
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} __packed __aligned(PAGE_SIZE); |
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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 chsc_init(void); |
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extern void chsc_init_cleanup(void); |
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int __chsc_enable_facility(struct chsc_sda_area *sda_area, int operation_code); |
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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_do_secm(struct channel_subsystem *css, int enable); |
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int chsc_chp_vary(struct chp_id chpid, int on); |
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int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt, |
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int c, int m, void *page); |
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int chsc_determine_fmt0_channel_path_desc(struct chp_id chpid, |
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struct channel_path_desc_fmt0 *desc); |
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int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid, |
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struct channel_path_desc_fmt1 *desc); |
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int chsc_determine_fmt3_channel_path_desc(struct chp_id chpid, |
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struct channel_path_desc_fmt3 *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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int chsc_ssqd(struct subchannel_id schid, struct chsc_ssqd_area *ssqd); |
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int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc, |
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u64 summary_indicator_addr, u64 subchannel_indicator_addr, |
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u8 isc); |
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int chsc_sgib(u32 origin); |
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int chsc_error_from_response(int response); |
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int chsc_siosl(struct subchannel_id schid); |
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/* Functions and definitions to query storage-class memory. */ |
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struct sale { |
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u64 sa; |
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u32 p:4; |
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u32 op_state:4; |
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u32 data_state:4; |
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u32 rank:4; |
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u32 r:1; |
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u32:7; |
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u32 rid:8; |
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u32:32; |
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} __packed; |
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struct chsc_scm_info { |
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struct chsc_header request; |
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u32:32; |
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u64 reqtok; |
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u32 reserved1[4]; |
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struct chsc_header response; |
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u64:56; |
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u8 rq; |
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u32 mbc; |
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u64 msa; |
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u16 is; |
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u16 mmc; |
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u32 mci; |
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u64 nr_scm_ini; |
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u64 nr_scm_unini; |
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u32 reserved2[10]; |
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u64 restok; |
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struct sale scmal[248]; |
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} __packed __aligned(PAGE_SIZE); |
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int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token); |
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int chsc_pnso(struct subchannel_id schid, struct chsc_pnso_area *pnso_area, |
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u8 oc, struct chsc_pnso_resume_token resume_token, int cnc); |
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int __init chsc_get_cssid_iid(int idx, u8 *cssid, u8 *iid); |
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#ifdef CONFIG_SCM_BUS |
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int scm_update_information(void); |
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int scm_process_availability_information(void); |
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#else /* CONFIG_SCM_BUS */ |
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static inline int scm_update_information(void) { return 0; } |
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static inline int scm_process_availability_information(void) { return 0; } |
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#endif /* CONFIG_SCM_BUS */ |
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#endif
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