1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * s390 diagnose functions 4 * 5 * Copyright IBM Corp. 2007 6 * Author(s): Michael Holzheu <holzheu@de.ibm.com> 7 */ 8 9 #ifndef _ASM_S390_DIAG_H 10 #define _ASM_S390_DIAG_H 11 12 #include <linux/if_ether.h> 13 #include <linux/percpu.h> 14 #include <asm/asm-extable.h> 15 #include <asm/cio.h> 16 17 enum diag_stat_enum { 18 DIAG_STAT_X008, 19 DIAG_STAT_X00C, 20 DIAG_STAT_X010, 21 DIAG_STAT_X014, 22 DIAG_STAT_X044, 23 DIAG_STAT_X064, 24 DIAG_STAT_X08C, 25 DIAG_STAT_X09C, 26 DIAG_STAT_X0DC, 27 DIAG_STAT_X204, 28 DIAG_STAT_X210, 29 DIAG_STAT_X224, 30 DIAG_STAT_X250, 31 DIAG_STAT_X258, 32 DIAG_STAT_X26C, 33 DIAG_STAT_X288, 34 DIAG_STAT_X2C4, 35 DIAG_STAT_X2FC, 36 DIAG_STAT_X304, 37 DIAG_STAT_X308, 38 DIAG_STAT_X318, 39 DIAG_STAT_X500, 40 NR_DIAG_STAT 41 }; 42 43 void diag_stat_inc(enum diag_stat_enum nr); 44 void diag_stat_inc_norecursion(enum diag_stat_enum nr); 45 46 /* 47 * Diagnose 10: Release page range 48 */ 49 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn) 50 { 51 unsigned long start_addr, end_addr; 52 53 start_addr = pfn_to_phys(start_pfn); 54 end_addr = pfn_to_phys(start_pfn + num_pfn - 1); 55 56 diag_stat_inc(DIAG_STAT_X010); 57 asm volatile( 58 "0: diag %0,%1,0x10\n" 59 "1: nopr %%r7\n" 60 EX_TABLE(0b, 1b) 61 EX_TABLE(1b, 1b) 62 : : "a" (start_addr), "a" (end_addr)); 63 } 64 65 /* 66 * Diagnose 14: Input spool file manipulation 67 */ 68 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode); 69 70 /* 71 * Diagnose 210: Get information about a virtual device 72 */ 73 struct diag210 { 74 u16 vrdcdvno; /* device number (input) */ 75 u16 vrdclen; /* data block length (input) */ 76 u8 vrdcvcla; /* virtual device class (output) */ 77 u8 vrdcvtyp; /* virtual device type (output) */ 78 u8 vrdcvsta; /* virtual device status (output) */ 79 u8 vrdcvfla; /* virtual device flags (output) */ 80 u8 vrdcrccl; /* real device class (output) */ 81 u8 vrdccrty; /* real device type (output) */ 82 u8 vrdccrmd; /* real device model (output) */ 83 u8 vrdccrft; /* real device feature (output) */ 84 } __packed __aligned(4); 85 86 extern int diag210(struct diag210 *addr); 87 88 struct diag8c { 89 u8 flags; 90 u8 num_partitions; 91 u16 width; 92 u16 height; 93 u8 data[]; 94 } __packed __aligned(4); 95 96 extern int diag8c(struct diag8c *out, struct ccw_dev_id *devno); 97 98 /* bit is set in flags, when physical cpu info is included in diag 204 data */ 99 #define DIAG204_LPAR_PHYS_FLG 0x80 100 #define DIAG204_LPAR_NAME_LEN 8 /* lpar name len in diag 204 data */ 101 #define DIAG204_CPU_NAME_LEN 16 /* type name len of cpus in diag224 name table */ 102 103 /* diag 204 subcodes */ 104 enum diag204_sc { 105 DIAG204_SUBC_STIB4 = 4, 106 DIAG204_SUBC_RSI = 5, 107 DIAG204_SUBC_STIB6 = 6, 108 DIAG204_SUBC_STIB7 = 7 109 }; 110 111 /* The two available diag 204 data formats */ 112 enum diag204_format { 113 DIAG204_INFO_SIMPLE = 0, 114 DIAG204_INFO_EXT = 0x00010000 115 }; 116 117 enum diag204_cpu_flags { 118 DIAG204_CPU_ONLINE = 0x20, 119 DIAG204_CPU_CAPPED = 0x40, 120 }; 121 122 struct diag204_info_blk_hdr { 123 __u8 npar; 124 __u8 flags; 125 __u16 tslice; 126 __u16 phys_cpus; 127 __u16 this_part; 128 __u64 curtod; 129 } __packed; 130 131 struct diag204_x_info_blk_hdr { 132 __u8 npar; 133 __u8 flags; 134 __u16 tslice; 135 __u16 phys_cpus; 136 __u16 this_part; 137 __u64 curtod1; 138 __u64 curtod2; 139 char reserved[40]; 140 } __packed; 141 142 struct diag204_part_hdr { 143 __u8 pn; 144 __u8 cpus; 145 char reserved[6]; 146 char part_name[DIAG204_LPAR_NAME_LEN]; 147 } __packed; 148 149 struct diag204_x_part_hdr { 150 __u8 pn; 151 __u8 cpus; 152 __u8 rcpus; 153 __u8 pflag; 154 __u32 mlu; 155 char part_name[DIAG204_LPAR_NAME_LEN]; 156 char lpc_name[8]; 157 char os_name[8]; 158 __u64 online_cs; 159 __u64 online_es; 160 __u8 upid; 161 __u8 reserved:3; 162 __u8 mtid:5; 163 char reserved1[2]; 164 __u32 group_mlu; 165 char group_name[8]; 166 char hardware_group_name[8]; 167 char reserved2[24]; 168 } __packed; 169 170 struct diag204_cpu_info { 171 __u16 cpu_addr; 172 char reserved1[2]; 173 __u8 ctidx; 174 __u8 cflag; 175 __u16 weight; 176 __u64 acc_time; 177 __u64 lp_time; 178 } __packed; 179 180 struct diag204_x_cpu_info { 181 __u16 cpu_addr; 182 char reserved1[2]; 183 __u8 ctidx; 184 __u8 cflag; 185 __u16 weight; 186 __u64 acc_time; 187 __u64 lp_time; 188 __u16 min_weight; 189 __u16 cur_weight; 190 __u16 max_weight; 191 char reseved2[2]; 192 __u64 online_time; 193 __u64 wait_time; 194 __u32 pma_weight; 195 __u32 polar_weight; 196 __u32 cpu_type_cap; 197 __u32 group_cpu_type_cap; 198 char reserved3[32]; 199 } __packed; 200 201 struct diag204_phys_hdr { 202 char reserved1[1]; 203 __u8 cpus; 204 char reserved2[6]; 205 char mgm_name[8]; 206 } __packed; 207 208 struct diag204_x_phys_hdr { 209 char reserved1[1]; 210 __u8 cpus; 211 char reserved2[6]; 212 char mgm_name[8]; 213 char reserved3[80]; 214 } __packed; 215 216 struct diag204_phys_cpu { 217 __u16 cpu_addr; 218 char reserved1[2]; 219 __u8 ctidx; 220 char reserved2[3]; 221 __u64 mgm_time; 222 char reserved3[8]; 223 } __packed; 224 225 struct diag204_x_phys_cpu { 226 __u16 cpu_addr; 227 char reserved1[2]; 228 __u8 ctidx; 229 char reserved2[1]; 230 __u16 weight; 231 __u64 mgm_time; 232 char reserved3[80]; 233 } __packed; 234 235 struct diag204_x_part_block { 236 struct diag204_x_part_hdr hdr; 237 struct diag204_x_cpu_info cpus[]; 238 } __packed; 239 240 struct diag204_x_phys_block { 241 struct diag204_x_phys_hdr hdr; 242 struct diag204_x_phys_cpu cpus[]; 243 } __packed; 244 245 enum diag26c_sc { 246 DIAG26C_PORT_VNIC = 0x00000024, 247 DIAG26C_MAC_SERVICES = 0x00000030 248 }; 249 250 enum diag26c_version { 251 DIAG26C_VERSION2 = 0x00000002, /* z/VM 5.4.0 */ 252 DIAG26C_VERSION6_VM65918 = 0x00020006 /* z/VM 6.4.0 + VM65918 */ 253 }; 254 255 #define DIAG26C_VNIC_INFO 0x0002 256 struct diag26c_vnic_req { 257 u32 resp_buf_len; 258 u32 resp_version; 259 u16 req_format; 260 u16 vlan_id; 261 u64 sys_name; 262 u8 res[2]; 263 u16 devno; 264 } __packed __aligned(8); 265 266 #define VNIC_INFO_PROT_L3 1 267 #define VNIC_INFO_PROT_L2 2 268 /* Note: this is the bare minimum, use it for uninitialized VNICs only. */ 269 struct diag26c_vnic_resp { 270 u32 version; 271 u32 entry_cnt; 272 /* VNIC info: */ 273 u32 next_entry; 274 u64 owner; 275 u16 devno; 276 u8 status; 277 u8 type; 278 u64 lan_owner; 279 u64 lan_name; 280 u64 port_name; 281 u8 port_type; 282 u8 ext_status:6; 283 u8 protocol:2; 284 u16 base_devno; 285 u32 port_num; 286 u32 ifindex; 287 u32 maxinfo; 288 u32 dev_count; 289 /* 3x device info: */ 290 u8 dev_info1[28]; 291 u8 dev_info2[28]; 292 u8 dev_info3[28]; 293 } __packed __aligned(8); 294 295 #define DIAG26C_GET_MAC 0x0000 296 struct diag26c_mac_req { 297 u32 resp_buf_len; 298 u32 resp_version; 299 u16 op_code; 300 u16 devno; 301 u8 res[4]; 302 }; 303 304 struct diag26c_mac_resp { 305 u32 version; 306 u8 mac[ETH_ALEN]; 307 u8 res[2]; 308 } __aligned(8); 309 310 #define CPNC_LINUX 0x4 311 union diag318_info { 312 unsigned long val; 313 struct { 314 unsigned long cpnc : 8; 315 unsigned long cpvc : 56; 316 }; 317 }; 318 319 int diag204(unsigned long subcode, unsigned long size, void *addr); 320 int diag224(void *ptr); 321 int diag26c(void *req, void *resp, enum diag26c_sc subcode); 322 323 struct hypfs_diag0c_entry; 324 325 /* 326 * This structure must contain only pointers/references into 327 * the AMODE31 text section. 328 */ 329 struct diag_ops { 330 int (*diag210)(struct diag210 *addr); 331 int (*diag26c)(void *req, void *resp, enum diag26c_sc subcode); 332 int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode); 333 int (*diag8c)(struct diag8c *addr, struct ccw_dev_id *devno, size_t len); 334 void (*diag0c)(struct hypfs_diag0c_entry *entry); 335 void (*diag308_reset)(void); 336 }; 337 338 extern struct diag_ops diag_amode31_ops; 339 extern struct diag210 *__diag210_tmp_amode31; 340 341 int _diag210_amode31(struct diag210 *addr); 342 int _diag26c_amode31(void *req, void *resp, enum diag26c_sc subcode); 343 int _diag14_amode31(unsigned long rx, unsigned long ry1, unsigned long subcode); 344 void _diag0c_amode31(struct hypfs_diag0c_entry *entry); 345 void _diag308_reset_amode31(void); 346 int _diag8c_amode31(struct diag8c *addr, struct ccw_dev_id *devno, size_t len); 347 348 #endif /* _ASM_S390_DIAG_H */ 349