linux/arch/s390/include/asm/diag.h
<<
>>
Prefs
   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
  15enum 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
  40void diag_stat_inc(enum diag_stat_enum nr);
  41void diag_stat_inc_norecursion(enum diag_stat_enum nr);
  42
  43/*
  44 * Diagnose 10: Release page range
  45 */
  46static 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 */
  65extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
  66
  67/*
  68 * Diagnose 210: Get information about a virtual device
  69 */
  70struct 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
  83extern 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 */
  91enum 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 */
  99enum diag204_format {
 100        DIAG204_INFO_SIMPLE = 0,
 101        DIAG204_INFO_EXT = 0x00010000
 102};
 103
 104enum diag204_cpu_flags {
 105        DIAG204_CPU_ONLINE = 0x20,
 106        DIAG204_CPU_CAPPED = 0x40,
 107};
 108
 109struct 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
 118struct 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
 129struct diag204_part_hdr {
 130        __u8 pn;
 131        __u8 cpus;
 132        char reserved[6];
 133        char part_name[DIAG204_LPAR_NAME_LEN];
 134} __packed;
 135
 136struct 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
 157struct 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
 167struct 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
 188struct diag204_phys_hdr {
 189        char reserved1[1];
 190        __u8 cpus;
 191        char reserved2[6];
 192        char mgm_name[8];
 193} __packed;
 194
 195struct 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
 203struct 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
 212struct 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
 222struct diag204_x_part_block {
 223        struct diag204_x_part_hdr hdr;
 224        struct diag204_x_cpu_info cpus[];
 225} __packed;
 226
 227struct diag204_x_phys_block {
 228        struct diag204_x_phys_hdr hdr;
 229        struct diag204_x_phys_cpu cpus[];
 230} __packed;
 231
 232enum diag26c_sc {
 233        DIAG26C_PORT_VNIC    = 0x00000024,
 234        DIAG26C_MAC_SERVICES = 0x00000030
 235};
 236
 237enum 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
 243struct 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. */
 256struct 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
 283struct 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
 291struct diag26c_mac_resp {
 292        u32     version;
 293        u8      mac[ETH_ALEN];
 294        u8      res[2];
 295} __aligned(8);
 296
 297#define CPNC_LINUX              0x4
 298union diag318_info {
 299        unsigned long val;
 300        struct {
 301                unsigned long cpnc : 8;
 302                unsigned long cpvc : 56;
 303        };
 304};
 305
 306int diag204(unsigned long subcode, unsigned long size, void *addr);
 307int diag224(void *ptr);
 308int diag26c(void *req, void *resp, enum diag26c_sc subcode);
 309
 310struct hypfs_diag0c_entry;
 311
 312struct diag_ops {
 313        int (*diag210)(struct diag210 *addr);
 314        int (*diag26c)(void *req, void *resp, enum diag26c_sc subcode);
 315        int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode);
 316        void (*diag0c)(struct hypfs_diag0c_entry *entry);
 317        void (*diag308_reset)(void);
 318};
 319
 320extern struct diag_ops diag_dma_ops;
 321extern struct diag210 *__diag210_tmp_dma;
 322#endif /* _ASM_S390_DIAG_H */
 323