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