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0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * s390 diagnose functions
0004  *
0005  * Copyright IBM Corp. 2007
0006  * Author(s): Michael Holzheu <holzheu@de.ibm.com>
0007  */
0008 
0009 #ifndef _ASM_S390_DIAG_H
0010 #define _ASM_S390_DIAG_H
0011 
0012 #include <linux/if_ether.h>
0013 #include <linux/percpu.h>
0014 #include <asm/asm-extable.h>
0015 
0016 enum diag_stat_enum {
0017     DIAG_STAT_X008,
0018     DIAG_STAT_X00C,
0019     DIAG_STAT_X010,
0020     DIAG_STAT_X014,
0021     DIAG_STAT_X044,
0022     DIAG_STAT_X064,
0023     DIAG_STAT_X09C,
0024     DIAG_STAT_X0DC,
0025     DIAG_STAT_X204,
0026     DIAG_STAT_X210,
0027     DIAG_STAT_X224,
0028     DIAG_STAT_X250,
0029     DIAG_STAT_X258,
0030     DIAG_STAT_X26C,
0031     DIAG_STAT_X288,
0032     DIAG_STAT_X2C4,
0033     DIAG_STAT_X2FC,
0034     DIAG_STAT_X304,
0035     DIAG_STAT_X308,
0036     DIAG_STAT_X318,
0037     DIAG_STAT_X500,
0038     NR_DIAG_STAT
0039 };
0040 
0041 void diag_stat_inc(enum diag_stat_enum nr);
0042 void diag_stat_inc_norecursion(enum diag_stat_enum nr);
0043 
0044 /*
0045  * Diagnose 10: Release page range
0046  */
0047 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
0048 {
0049     unsigned long start_addr, end_addr;
0050 
0051     start_addr = pfn_to_phys(start_pfn);
0052     end_addr = pfn_to_phys(start_pfn + num_pfn - 1);
0053 
0054     diag_stat_inc(DIAG_STAT_X010);
0055     asm volatile(
0056         "0: diag    %0,%1,0x10\n"
0057         "1: nopr    %%r7\n"
0058         EX_TABLE(0b, 1b)
0059         EX_TABLE(1b, 1b)
0060         : : "a" (start_addr), "a" (end_addr));
0061 }
0062 
0063 /*
0064  * Diagnose 14: Input spool file manipulation
0065  */
0066 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
0067 
0068 /*
0069  * Diagnose 210: Get information about a virtual device
0070  */
0071 struct diag210 {
0072     u16 vrdcdvno;   /* device number (input) */
0073     u16 vrdclen;    /* data block length (input) */
0074     u8 vrdcvcla;    /* virtual device class (output) */
0075     u8 vrdcvtyp;    /* virtual device type (output) */
0076     u8 vrdcvsta;    /* virtual device status (output) */
0077     u8 vrdcvfla;    /* virtual device flags (output) */
0078     u8 vrdcrccl;    /* real device class (output) */
0079     u8 vrdccrty;    /* real device type (output) */
0080     u8 vrdccrmd;    /* real device model (output) */
0081     u8 vrdccrft;    /* real device feature (output) */
0082 } __attribute__((packed, aligned(4)));
0083 
0084 extern int diag210(struct diag210 *addr);
0085 
0086 /* bit is set in flags, when physical cpu info is included in diag 204 data */
0087 #define DIAG204_LPAR_PHYS_FLG 0x80
0088 #define DIAG204_LPAR_NAME_LEN 8     /* lpar name len in diag 204 data */
0089 #define DIAG204_CPU_NAME_LEN 16     /* type name len of cpus in diag224 name table */
0090 
0091 /* diag 204 subcodes */
0092 enum diag204_sc {
0093     DIAG204_SUBC_STIB4 = 4,
0094     DIAG204_SUBC_RSI = 5,
0095     DIAG204_SUBC_STIB6 = 6,
0096     DIAG204_SUBC_STIB7 = 7
0097 };
0098 
0099 /* The two available diag 204 data formats */
0100 enum diag204_format {
0101     DIAG204_INFO_SIMPLE = 0,
0102     DIAG204_INFO_EXT = 0x00010000
0103 };
0104 
0105 enum diag204_cpu_flags {
0106     DIAG204_CPU_ONLINE = 0x20,
0107     DIAG204_CPU_CAPPED = 0x40,
0108 };
0109 
0110 struct diag204_info_blk_hdr {
0111     __u8  npar;
0112     __u8  flags;
0113     __u16 tslice;
0114     __u16 phys_cpus;
0115     __u16 this_part;
0116     __u64 curtod;
0117 } __packed;
0118 
0119 struct diag204_x_info_blk_hdr {
0120     __u8  npar;
0121     __u8  flags;
0122     __u16 tslice;
0123     __u16 phys_cpus;
0124     __u16 this_part;
0125     __u64 curtod1;
0126     __u64 curtod2;
0127     char reserved[40];
0128 } __packed;
0129 
0130 struct diag204_part_hdr {
0131     __u8 pn;
0132     __u8 cpus;
0133     char reserved[6];
0134     char part_name[DIAG204_LPAR_NAME_LEN];
0135 } __packed;
0136 
0137 struct diag204_x_part_hdr {
0138     __u8  pn;
0139     __u8  cpus;
0140     __u8  rcpus;
0141     __u8  pflag;
0142     __u32 mlu;
0143     char  part_name[DIAG204_LPAR_NAME_LEN];
0144     char  lpc_name[8];
0145     char  os_name[8];
0146     __u64 online_cs;
0147     __u64 online_es;
0148     __u8  upid;
0149     __u8  reserved:3;
0150     __u8  mtid:5;
0151     char  reserved1[2];
0152     __u32 group_mlu;
0153     char  group_name[8];
0154     char  hardware_group_name[8];
0155     char  reserved2[24];
0156 } __packed;
0157 
0158 struct diag204_cpu_info {
0159     __u16 cpu_addr;
0160     char  reserved1[2];
0161     __u8  ctidx;
0162     __u8  cflag;
0163     __u16 weight;
0164     __u64 acc_time;
0165     __u64 lp_time;
0166 } __packed;
0167 
0168 struct diag204_x_cpu_info {
0169     __u16 cpu_addr;
0170     char  reserved1[2];
0171     __u8  ctidx;
0172     __u8  cflag;
0173     __u16 weight;
0174     __u64 acc_time;
0175     __u64 lp_time;
0176     __u16 min_weight;
0177     __u16 cur_weight;
0178     __u16 max_weight;
0179     char  reseved2[2];
0180     __u64 online_time;
0181     __u64 wait_time;
0182     __u32 pma_weight;
0183     __u32 polar_weight;
0184     __u32 cpu_type_cap;
0185     __u32 group_cpu_type_cap;
0186     char  reserved3[32];
0187 } __packed;
0188 
0189 struct diag204_phys_hdr {
0190     char reserved1[1];
0191     __u8 cpus;
0192     char reserved2[6];
0193     char mgm_name[8];
0194 } __packed;
0195 
0196 struct diag204_x_phys_hdr {
0197     char reserved1[1];
0198     __u8 cpus;
0199     char reserved2[6];
0200     char mgm_name[8];
0201     char reserved3[80];
0202 } __packed;
0203 
0204 struct diag204_phys_cpu {
0205     __u16 cpu_addr;
0206     char  reserved1[2];
0207     __u8  ctidx;
0208     char  reserved2[3];
0209     __u64 mgm_time;
0210     char  reserved3[8];
0211 } __packed;
0212 
0213 struct diag204_x_phys_cpu {
0214     __u16 cpu_addr;
0215     char  reserved1[2];
0216     __u8  ctidx;
0217     char  reserved2[1];
0218     __u16 weight;
0219     __u64 mgm_time;
0220     char  reserved3[80];
0221 } __packed;
0222 
0223 struct diag204_x_part_block {
0224     struct diag204_x_part_hdr hdr;
0225     struct diag204_x_cpu_info cpus[];
0226 } __packed;
0227 
0228 struct diag204_x_phys_block {
0229     struct diag204_x_phys_hdr hdr;
0230     struct diag204_x_phys_cpu cpus[];
0231 } __packed;
0232 
0233 enum diag26c_sc {
0234     DIAG26C_PORT_VNIC    = 0x00000024,
0235     DIAG26C_MAC_SERVICES = 0x00000030
0236 };
0237 
0238 enum diag26c_version {
0239     DIAG26C_VERSION2     = 0x00000002,  /* z/VM 5.4.0 */
0240     DIAG26C_VERSION6_VM65918 = 0x00020006   /* z/VM 6.4.0 + VM65918 */
0241 };
0242 
0243 #define DIAG26C_VNIC_INFO   0x0002
0244 struct diag26c_vnic_req {
0245     u32 resp_buf_len;
0246     u32 resp_version;
0247     u16 req_format;
0248     u16 vlan_id;
0249     u64 sys_name;
0250     u8  res[2];
0251     u16 devno;
0252 } __packed __aligned(8);
0253 
0254 #define VNIC_INFO_PROT_L3   1
0255 #define VNIC_INFO_PROT_L2   2
0256 /* Note: this is the bare minimum, use it for uninitialized VNICs only. */
0257 struct diag26c_vnic_resp {
0258     u32 version;
0259     u32 entry_cnt;
0260     /* VNIC info: */
0261     u32 next_entry;
0262     u64 owner;
0263     u16 devno;
0264     u8  status;
0265     u8  type;
0266     u64 lan_owner;
0267     u64 lan_name;
0268     u64 port_name;
0269     u8  port_type;
0270     u8  ext_status:6;
0271     u8  protocol:2;
0272     u16 base_devno;
0273     u32 port_num;
0274     u32 ifindex;
0275     u32 maxinfo;
0276     u32 dev_count;
0277     /* 3x device info: */
0278     u8  dev_info1[28];
0279     u8  dev_info2[28];
0280     u8  dev_info3[28];
0281 } __packed __aligned(8);
0282 
0283 #define DIAG26C_GET_MAC 0x0000
0284 struct diag26c_mac_req {
0285     u32 resp_buf_len;
0286     u32 resp_version;
0287     u16 op_code;
0288     u16 devno;
0289     u8  res[4];
0290 };
0291 
0292 struct diag26c_mac_resp {
0293     u32 version;
0294     u8  mac[ETH_ALEN];
0295     u8  res[2];
0296 } __aligned(8);
0297 
0298 #define CPNC_LINUX      0x4
0299 union diag318_info {
0300     unsigned long val;
0301     struct {
0302         unsigned long cpnc : 8;
0303         unsigned long cpvc : 56;
0304     };
0305 };
0306 
0307 int diag204(unsigned long subcode, unsigned long size, void *addr);
0308 int diag224(void *ptr);
0309 int diag26c(void *req, void *resp, enum diag26c_sc subcode);
0310 
0311 struct hypfs_diag0c_entry;
0312 
0313 /*
0314  * This structure must contain only pointers/references into
0315  * the AMODE31 text section.
0316  */
0317 struct diag_ops {
0318     int (*diag210)(struct diag210 *addr);
0319     int (*diag26c)(void *req, void *resp, enum diag26c_sc subcode);
0320     int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode);
0321     void (*diag0c)(struct hypfs_diag0c_entry *entry);
0322     void (*diag308_reset)(void);
0323 };
0324 
0325 extern struct diag_ops diag_amode31_ops;
0326 extern struct diag210 *__diag210_tmp_amode31;
0327 
0328 int _diag210_amode31(struct diag210 *addr);
0329 int _diag26c_amode31(void *req, void *resp, enum diag26c_sc subcode);
0330 int _diag14_amode31(unsigned long rx, unsigned long ry1, unsigned long subcode);
0331 void _diag0c_amode31(struct hypfs_diag0c_entry *entry);
0332 void _diag308_reset_amode31(void);
0333 
0334 #endif /* _ASM_S390_DIAG_H */
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