1 #ifndef S390_CHSC_H 2 #define S390_CHSC_H 3 4 #include <linux/types.h> 5 #include <linux/device.h> 6 #include <asm/css_chars.h> 7 #include <asm/chpid.h> 8 #include <asm/chsc.h> 9 #include <asm/schid.h> 10 #include <asm/qdio.h> 11 12 #define CHSC_SDA_OC_MSS 0x2 13 14 #define NR_MEASUREMENT_CHARS 5 15 struct cmg_chars { 16 u32 values[NR_MEASUREMENT_CHARS]; 17 } __attribute__ ((packed)); 18 19 #define NR_MEASUREMENT_ENTRIES 8 20 struct cmg_entry { 21 u32 values[NR_MEASUREMENT_ENTRIES]; 22 } __attribute__ ((packed)); 23 24 struct channel_path_desc { 25 u8 flags; 26 u8 lsn; 27 u8 desc; 28 u8 chpid; 29 u8 swla; 30 u8 zeroes; 31 u8 chla; 32 u8 chpp; 33 } __attribute__ ((packed)); 34 35 struct channel_path_desc_fmt1 { 36 u8 flags; 37 u8 lsn; 38 u8 desc; 39 u8 chpid; 40 u32:24; 41 u8 chpp; 42 u32 unused[2]; 43 u16 chid; 44 u32:16; 45 u16 mdc; 46 u16:13; 47 u8 r:1; 48 u8 s:1; 49 u8 f:1; 50 u32 zeros[2]; 51 } __attribute__ ((packed)); 52 53 struct channel_path; 54 55 struct css_chsc_char { 56 u64 res; 57 u64 : 20; 58 u32 secm : 1; /* bit 84 */ 59 u32 : 1; 60 u32 scmc : 1; /* bit 86 */ 61 u32 : 20; 62 u32 scssc : 1; /* bit 107 */ 63 u32 scsscf : 1; /* bit 108 */ 64 u32:7; 65 u32 pnso:1; /* bit 116 */ 66 u32:11; 67 }__attribute__((packed)); 68 69 extern struct css_chsc_char css_chsc_characteristics; 70 71 struct chsc_ssd_info { 72 u8 path_mask; 73 u8 fla_valid_mask; 74 struct chp_id chpid[8]; 75 u16 fla[8]; 76 }; 77 78 struct chsc_ssqd_area { 79 struct chsc_header request; 80 u16:10; 81 u8 ssid:2; 82 u8 fmt:4; 83 u16 first_sch; 84 u16:16; 85 u16 last_sch; 86 u32:32; 87 struct chsc_header response; 88 u32:32; 89 struct qdio_ssqd_desc qdio_ssqd; 90 } __packed; 91 92 struct chsc_scssc_area { 93 struct chsc_header request; 94 u16 operation_code; 95 u16:16; 96 u32:32; 97 u32:32; 98 u64 summary_indicator_addr; 99 u64 subchannel_indicator_addr; 100 u32 ks:4; 101 u32 kc:4; 102 u32:21; 103 u32 isc:3; 104 u32 word_with_d_bit; 105 u32:32; 106 struct subchannel_id schid; 107 u32 reserved[1004]; 108 struct chsc_header response; 109 u32:32; 110 } __packed; 111 112 struct chsc_scpd { 113 struct chsc_header request; 114 u32:2; 115 u32 m:1; 116 u32 c:1; 117 u32 fmt:4; 118 u32 cssid:8; 119 u32:4; 120 u32 rfmt:4; 121 u32 first_chpid:8; 122 u32:24; 123 u32 last_chpid:8; 124 u32 zeroes1; 125 struct chsc_header response; 126 u8 data[PAGE_SIZE - 20]; 127 } __attribute__ ((packed)); 128 129 130 extern int chsc_get_ssd_info(struct subchannel_id schid, 131 struct chsc_ssd_info *ssd); 132 extern int chsc_determine_css_characteristics(void); 133 extern int chsc_init(void); 134 extern void chsc_init_cleanup(void); 135 136 extern int chsc_enable_facility(int); 137 struct channel_subsystem; 138 extern int chsc_secm(struct channel_subsystem *, int); 139 int __chsc_do_secm(struct channel_subsystem *css, int enable); 140 141 int chsc_chp_vary(struct chp_id chpid, int on); 142 int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt, 143 int c, int m, void *page); 144 int chsc_determine_base_channel_path_desc(struct chp_id chpid, 145 struct channel_path_desc *desc); 146 int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid, 147 struct channel_path_desc_fmt1 *desc); 148 void chsc_chp_online(struct chp_id chpid); 149 void chsc_chp_offline(struct chp_id chpid); 150 int chsc_get_channel_measurement_chars(struct channel_path *chp); 151 int chsc_ssqd(struct subchannel_id schid, struct chsc_ssqd_area *ssqd); 152 int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc, 153 u64 summary_indicator_addr, u64 subchannel_indicator_addr); 154 int chsc_error_from_response(int response); 155 156 int chsc_siosl(struct subchannel_id schid); 157 158 /* Functions and definitions to query storage-class memory. */ 159 struct sale { 160 u64 sa; 161 u32 p:4; 162 u32 op_state:4; 163 u32 data_state:4; 164 u32 rank:4; 165 u32 r:1; 166 u32:7; 167 u32 rid:8; 168 u32:32; 169 } __packed; 170 171 struct chsc_scm_info { 172 struct chsc_header request; 173 u32:32; 174 u64 reqtok; 175 u32 reserved1[4]; 176 struct chsc_header response; 177 u64:56; 178 u8 rq; 179 u32 mbc; 180 u64 msa; 181 u16 is; 182 u16 mmc; 183 u32 mci; 184 u64 nr_scm_ini; 185 u64 nr_scm_unini; 186 u32 reserved2[10]; 187 u64 restok; 188 struct sale scmal[248]; 189 } __packed; 190 191 int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token); 192 193 struct chsc_brinfo_resume_token { 194 u64 t1; 195 u64 t2; 196 } __packed; 197 198 struct chsc_brinfo_naihdr { 199 struct chsc_brinfo_resume_token resume_token; 200 u32:32; 201 u32 instance; 202 u32:24; 203 u8 naids; 204 u32 reserved[3]; 205 } __packed; 206 207 struct chsc_pnso_area { 208 struct chsc_header request; 209 u8:2; 210 u8 m:1; 211 u8:5; 212 u8:2; 213 u8 ssid:2; 214 u8 fmt:4; 215 u16 sch; 216 u8:8; 217 u8 cssid; 218 u16:16; 219 u8 oc; 220 u32:24; 221 struct chsc_brinfo_resume_token resume_token; 222 u32 n:1; 223 u32:31; 224 u32 reserved[3]; 225 struct chsc_header response; 226 u32:32; 227 struct chsc_brinfo_naihdr naihdr; 228 union { 229 struct qdio_brinfo_entry_l3_ipv6 l3_ipv6[0]; 230 struct qdio_brinfo_entry_l3_ipv4 l3_ipv4[0]; 231 struct qdio_brinfo_entry_l2 l2[0]; 232 } entries; 233 } __packed; 234 235 int chsc_pnso_brinfo(struct subchannel_id schid, 236 struct chsc_pnso_area *brinfo_area, 237 struct chsc_brinfo_resume_token resume_token, 238 int cnc); 239 240 #ifdef CONFIG_SCM_BUS 241 int scm_update_information(void); 242 int scm_process_availability_information(void); 243 #else /* CONFIG_SCM_BUS */ 244 static inline int scm_update_information(void) { return 0; } 245 static inline int scm_process_availability_information(void) { return 0; } 246 #endif /* CONFIG_SCM_BUS */ 247 248 249 #endif 250