arch/s390/include/asm/diag.h

   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 int cpnc : 8;
 302                 unsigned int cpvc_linux : 24;
 303                 unsigned char cpvc_distro[3];
 304                 unsigned char zero;
 305         };
 306 };
 307
 308 int diag204(unsigned long subcode, unsigned long size, void *addr);
 309 int diag224(void *ptr);
 310 int diag26c(void *req, void *resp, enum diag26c_sc subcode);
 311
 312 struct hypfs_diag0c_entry;
 313
 314 struct diag_ops {
 315         int (*diag210)(struct diag210 *addr);
 316         int (*diag26c)(void *req, void *resp, enum diag26c_sc subcode);
 317         int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode);
 318         void (*diag0c)(struct hypfs_diag0c_entry *entry);
 319         void (*diag308_reset)(void);
 320 };
 321
 322 extern struct diag_ops diag_dma_ops;
 323 extern struct diag210 *__diag210_tmp_dma;
 324 #endif /* _ASM_S390_DIAG_H */