#include <asm/ebcdic.h>
#include "hypfs.h"
-#define LPAR_NAME_LEN 8 /* lpar name len in diag 204 data */
-#define CPU_NAME_LEN 16 /* type name len of cpus in diag224 name table */
#define TMP_SIZE 64 /* size of temporary buffers */
#define DBFS_D204_HDR_VERSION 0
-/* diag 204 subcodes */
-enum diag204_sc {
- SUBC_STIB4 = 4,
- SUBC_RSI = 5,
- SUBC_STIB6 = 6,
- SUBC_STIB7 = 7
-};
-
-/* The two available diag 204 data formats */
-enum diag204_format {
- INFO_SIMPLE = 0,
- INFO_EXT = 0x00010000
-};
-
-/* bit is set in flags, when physical cpu info is included in diag 204 data */
-#define LPAR_PHYS_FLG 0x80
-
static char *diag224_cpu_names; /* diag 224 name table */
static enum diag204_sc diag204_store_sc; /* used subcode for store */
static enum diag204_format diag204_info_type; /* used diag 204 data format */
static struct dentry *dbfs_d204_file;
/*
- * DIAG 204 data structures and member access functions.
+ * DIAG 204 member access functions.
*
* Since we have two different diag 204 data formats for old and new s390
* machines, we do not access the structs directly, but use getter functions for
/* Time information block */
-struct info_blk_hdr {
- __u8 npar;
- __u8 flags;
- __u16 tslice;
- __u16 phys_cpus;
- __u16 this_part;
- __u64 curtod;
-} __attribute__ ((packed));
-
-struct x_info_blk_hdr {
- __u8 npar;
- __u8 flags;
- __u16 tslice;
- __u16 phys_cpus;
- __u16 this_part;
- __u64 curtod1;
- __u64 curtod2;
- char reserved[40];
-} __attribute__ ((packed));
-
static inline int info_blk_hdr__size(enum diag204_format type)
{
- if (type == INFO_SIMPLE)
- return sizeof(struct info_blk_hdr);
- else /* INFO_EXT */
- return sizeof(struct x_info_blk_hdr);
+ if (type == DIAG204_INFO_SIMPLE)
+ return sizeof(struct diag204_info_blk_hdr);
+ else /* DIAG204_INFO_EXT */
+ return sizeof(struct diag204_x_info_blk_hdr);
}
static inline __u8 info_blk_hdr__npar(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct info_blk_hdr *)hdr)->npar;
- else /* INFO_EXT */
- return ((struct x_info_blk_hdr *)hdr)->npar;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_info_blk_hdr *)hdr)->npar;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_info_blk_hdr *)hdr)->npar;
}
static inline __u8 info_blk_hdr__flags(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct info_blk_hdr *)hdr)->flags;
- else /* INFO_EXT */
- return ((struct x_info_blk_hdr *)hdr)->flags;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_info_blk_hdr *)hdr)->flags;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_info_blk_hdr *)hdr)->flags;
}
static inline __u16 info_blk_hdr__pcpus(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct info_blk_hdr *)hdr)->phys_cpus;
- else /* INFO_EXT */
- return ((struct x_info_blk_hdr *)hdr)->phys_cpus;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_info_blk_hdr *)hdr)->phys_cpus;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_info_blk_hdr *)hdr)->phys_cpus;
}
/* Partition header */
-struct part_hdr {
- __u8 pn;
- __u8 cpus;
- char reserved[6];
- char part_name[LPAR_NAME_LEN];
-} __attribute__ ((packed));
-
-struct x_part_hdr {
- __u8 pn;
- __u8 cpus;
- __u8 rcpus;
- __u8 pflag;
- __u32 mlu;
- char part_name[LPAR_NAME_LEN];
- char lpc_name[8];
- char os_name[8];
- __u64 online_cs;
- __u64 online_es;
- __u8 upid;
- char reserved1[3];
- __u32 group_mlu;
- char group_name[8];
- char reserved2[32];
-} __attribute__ ((packed));
-
static inline int part_hdr__size(enum diag204_format type)
{
- if (type == INFO_SIMPLE)
- return sizeof(struct part_hdr);
- else /* INFO_EXT */
- return sizeof(struct x_part_hdr);
+ if (type == DIAG204_INFO_SIMPLE)
+ return sizeof(struct diag204_part_hdr);
+ else /* DIAG204_INFO_EXT */
+ return sizeof(struct diag204_x_part_hdr);
}
static inline __u8 part_hdr__rcpus(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct part_hdr *)hdr)->cpus;
- else /* INFO_EXT */
- return ((struct x_part_hdr *)hdr)->rcpus;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_part_hdr *)hdr)->cpus;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_part_hdr *)hdr)->rcpus;
}
static inline void part_hdr__part_name(enum diag204_format type, void *hdr,
char *name)
{
- if (type == INFO_SIMPLE)
- memcpy(name, ((struct part_hdr *)hdr)->part_name,
- LPAR_NAME_LEN);
- else /* INFO_EXT */
- memcpy(name, ((struct x_part_hdr *)hdr)->part_name,
- LPAR_NAME_LEN);
- EBCASC(name, LPAR_NAME_LEN);
- name[LPAR_NAME_LEN] = 0;
+ if (type == DIAG204_INFO_SIMPLE)
+ memcpy(name, ((struct diag204_part_hdr *)hdr)->part_name,
+ DIAG204_LPAR_NAME_LEN);
+ else /* DIAG204_INFO_EXT */
+ memcpy(name, ((struct diag204_x_part_hdr *)hdr)->part_name,
+ DIAG204_LPAR_NAME_LEN);
+ EBCASC(name, DIAG204_LPAR_NAME_LEN);
+ name[DIAG204_LPAR_NAME_LEN] = 0;
strim(name);
}
-struct cpu_info {
- __u16 cpu_addr;
- char reserved1[2];
- __u8 ctidx;
- __u8 cflag;
- __u16 weight;
- __u64 acc_time;
- __u64 lp_time;
-} __attribute__ ((packed));
-
-struct x_cpu_info {
- __u16 cpu_addr;
- char reserved1[2];
- __u8 ctidx;
- __u8 cflag;
- __u16 weight;
- __u64 acc_time;
- __u64 lp_time;
- __u16 min_weight;
- __u16 cur_weight;
- __u16 max_weight;
- char reseved2[2];
- __u64 online_time;
- __u64 wait_time;
- __u32 pma_weight;
- __u32 polar_weight;
- char reserved3[40];
-} __attribute__ ((packed));
-
/* CPU info block */
static inline int cpu_info__size(enum diag204_format type)
{
- if (type == INFO_SIMPLE)
- return sizeof(struct cpu_info);
- else /* INFO_EXT */
- return sizeof(struct x_cpu_info);
+ if (type == DIAG204_INFO_SIMPLE)
+ return sizeof(struct diag204_cpu_info);
+ else /* DIAG204_INFO_EXT */
+ return sizeof(struct diag204_x_cpu_info);
}
static inline __u8 cpu_info__ctidx(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct cpu_info *)hdr)->ctidx;
- else /* INFO_EXT */
- return ((struct x_cpu_info *)hdr)->ctidx;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_cpu_info *)hdr)->ctidx;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_cpu_info *)hdr)->ctidx;
}
static inline __u16 cpu_info__cpu_addr(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct cpu_info *)hdr)->cpu_addr;
- else /* INFO_EXT */
- return ((struct x_cpu_info *)hdr)->cpu_addr;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_cpu_info *)hdr)->cpu_addr;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_cpu_info *)hdr)->cpu_addr;
}
static inline __u64 cpu_info__acc_time(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct cpu_info *)hdr)->acc_time;
- else /* INFO_EXT */
- return ((struct x_cpu_info *)hdr)->acc_time;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_cpu_info *)hdr)->acc_time;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_cpu_info *)hdr)->acc_time;
}
static inline __u64 cpu_info__lp_time(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct cpu_info *)hdr)->lp_time;
- else /* INFO_EXT */
- return ((struct x_cpu_info *)hdr)->lp_time;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_cpu_info *)hdr)->lp_time;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_cpu_info *)hdr)->lp_time;
}
static inline __u64 cpu_info__online_time(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
+ if (type == DIAG204_INFO_SIMPLE)
return 0; /* online_time not available in simple info */
- else /* INFO_EXT */
- return ((struct x_cpu_info *)hdr)->online_time;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_cpu_info *)hdr)->online_time;
}
/* Physical header */
-struct phys_hdr {
- char reserved1[1];
- __u8 cpus;
- char reserved2[6];
- char mgm_name[8];
-} __attribute__ ((packed));
-
-struct x_phys_hdr {
- char reserved1[1];
- __u8 cpus;
- char reserved2[6];
- char mgm_name[8];
- char reserved3[80];
-} __attribute__ ((packed));
-
static inline int phys_hdr__size(enum diag204_format type)
{
- if (type == INFO_SIMPLE)
- return sizeof(struct phys_hdr);
- else /* INFO_EXT */
- return sizeof(struct x_phys_hdr);
+ if (type == DIAG204_INFO_SIMPLE)
+ return sizeof(struct diag204_phys_hdr);
+ else /* DIAG204_INFO_EXT */
+ return sizeof(struct diag204_x_phys_hdr);
}
static inline __u8 phys_hdr__cpus(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct phys_hdr *)hdr)->cpus;
- else /* INFO_EXT */
- return ((struct x_phys_hdr *)hdr)->cpus;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_phys_hdr *)hdr)->cpus;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_phys_hdr *)hdr)->cpus;
}
/* Physical CPU info block */
-struct phys_cpu {
- __u16 cpu_addr;
- char reserved1[2];
- __u8 ctidx;
- char reserved2[3];
- __u64 mgm_time;
- char reserved3[8];
-} __attribute__ ((packed));
-
-struct x_phys_cpu {
- __u16 cpu_addr;
- char reserved1[2];
- __u8 ctidx;
- char reserved2[3];
- __u64 mgm_time;
- char reserved3[80];
-} __attribute__ ((packed));
-
static inline int phys_cpu__size(enum diag204_format type)
{
- if (type == INFO_SIMPLE)
- return sizeof(struct phys_cpu);
- else /* INFO_EXT */
- return sizeof(struct x_phys_cpu);
+ if (type == DIAG204_INFO_SIMPLE)
+ return sizeof(struct diag204_phys_cpu);
+ else /* DIAG204_INFO_EXT */
+ return sizeof(struct diag204_x_phys_cpu);
}
static inline __u16 phys_cpu__cpu_addr(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct phys_cpu *)hdr)->cpu_addr;
- else /* INFO_EXT */
- return ((struct x_phys_cpu *)hdr)->cpu_addr;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_phys_cpu *)hdr)->cpu_addr;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_phys_cpu *)hdr)->cpu_addr;
}
static inline __u64 phys_cpu__mgm_time(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct phys_cpu *)hdr)->mgm_time;
- else /* INFO_EXT */
- return ((struct x_phys_cpu *)hdr)->mgm_time;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_phys_cpu *)hdr)->mgm_time;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_phys_cpu *)hdr)->mgm_time;
}
static inline __u64 phys_cpu__ctidx(enum diag204_format type, void *hdr)
{
- if (type == INFO_SIMPLE)
- return ((struct phys_cpu *)hdr)->ctidx;
- else /* INFO_EXT */
- return ((struct x_phys_cpu *)hdr)->ctidx;
+ if (type == DIAG204_INFO_SIMPLE)
+ return ((struct diag204_phys_cpu *)hdr)->ctidx;
+ else /* DIAG204_INFO_EXT */
+ return ((struct diag204_x_phys_cpu *)hdr)->ctidx;
}
/* Diagnose 204 functions */
-
-static inline int __diag204(unsigned long subcode, unsigned long size, void *addr)
-{
- register unsigned long _subcode asm("0") = subcode;
- register unsigned long _size asm("1") = size;
-
- asm volatile(
- " diag %2,%0,0x204\n"
- "0:\n"
- EX_TABLE(0b,0b)
- : "+d" (_subcode), "+d" (_size) : "d" (addr) : "memory");
- if (_subcode)
- return -1;
- return _size;
-}
-
-static int diag204(unsigned long subcode, unsigned long size, void *addr)
-{
- diag_stat_inc(DIAG_STAT_X204);
- return __diag204(subcode, size, addr);
-}
-
/*
* For the old diag subcode 4 with simple data format we have to use real
* memory. If we use subcode 6 or 7 with extended data format, we can (and
*pages = diag204_buf_pages;
return diag204_buf;
}
- if (fmt == INFO_SIMPLE) {
+ if (fmt == DIAG204_INFO_SIMPLE) {
*pages = 1;
return diag204_alloc_rbuf();
- } else {/* INFO_EXT */
- *pages = diag204((unsigned long)SUBC_RSI |
- (unsigned long)INFO_EXT, 0, NULL);
+ } else {/* DIAG204_INFO_EXT */
+ *pages = diag204((unsigned long)DIAG204_SUBC_RSI |
+ (unsigned long)DIAG204_INFO_EXT, 0, NULL);
if (*pages <= 0)
return ERR_PTR(-ENOSYS);
else
void *buf;
int pages, rc;
- buf = diag204_get_buffer(INFO_EXT, &pages);
+ buf = diag204_get_buffer(DIAG204_INFO_EXT, &pages);
if (!IS_ERR(buf)) {
- if (diag204((unsigned long)SUBC_STIB7 |
- (unsigned long)INFO_EXT, pages, buf) >= 0) {
- diag204_store_sc = SUBC_STIB7;
- diag204_info_type = INFO_EXT;
+ if (diag204((unsigned long)DIAG204_SUBC_STIB7 |
+ (unsigned long)DIAG204_INFO_EXT, pages, buf) >= 0) {
+ diag204_store_sc = DIAG204_SUBC_STIB7;
+ diag204_info_type = DIAG204_INFO_EXT;
goto out;
}
- if (diag204((unsigned long)SUBC_STIB6 |
- (unsigned long)INFO_EXT, pages, buf) >= 0) {
- diag204_store_sc = SUBC_STIB6;
- diag204_info_type = INFO_EXT;
+ if (diag204((unsigned long)DIAG204_SUBC_STIB6 |
+ (unsigned long)DIAG204_INFO_EXT, pages, buf) >= 0) {
+ diag204_store_sc = DIAG204_SUBC_STIB6;
+ diag204_info_type = DIAG204_INFO_EXT;
goto out;
}
diag204_free_buffer();
/* subcodes 6 and 7 failed, now try subcode 4 */
- buf = diag204_get_buffer(INFO_SIMPLE, &pages);
+ buf = diag204_get_buffer(DIAG204_INFO_SIMPLE, &pages);
if (IS_ERR(buf)) {
rc = PTR_ERR(buf);
goto fail_alloc;
}
- if (diag204((unsigned long)SUBC_STIB4 |
- (unsigned long)INFO_SIMPLE, pages, buf) >= 0) {
- diag204_store_sc = SUBC_STIB4;
- diag204_info_type = INFO_SIMPLE;
+ if (diag204((unsigned long)DIAG204_SUBC_STIB4 |
+ (unsigned long)DIAG204_INFO_SIMPLE, pages, buf) >= 0) {
+ diag204_store_sc = DIAG204_SUBC_STIB4;
+ diag204_info_type = DIAG204_INFO_SIMPLE;
goto out;
} else {
rc = -ENOSYS;
static int diag224_idx2name(int index, char *name)
{
- memcpy(name, diag224_cpu_names + ((index + 1) * CPU_NAME_LEN),
- CPU_NAME_LEN);
- name[CPU_NAME_LEN] = 0;
+ memcpy(name, diag224_cpu_names + ((index + 1) * DIAG204_CPU_NAME_LEN),
+ DIAG204_CPU_NAME_LEN);
+ name[DIAG204_CPU_NAME_LEN] = 0;
strim(name);
return 0;
}
pr_err("The hardware system does not support hypfs\n");
return -ENODATA;
}
- if (diag204_info_type == INFO_EXT) {
+ if (diag204_info_type == DIAG204_INFO_EXT) {
rc = hypfs_dbfs_create_file(&dbfs_file_d204);
if (rc)
return rc;
cpu_info__lp_time(diag204_info_type, cpu_info));
if (IS_ERR(rc))
return PTR_ERR(rc);
- if (diag204_info_type == INFO_EXT) {
+ if (diag204_info_type == DIAG204_INFO_EXT) {
rc = hypfs_create_u64(cpu_dir, "onlinetime",
cpu_info__online_time(diag204_info_type,
cpu_info));
{
struct dentry *cpus_dir;
struct dentry *lpar_dir;
- char lpar_name[LPAR_NAME_LEN + 1];
+ char lpar_name[DIAG204_LPAR_NAME_LEN + 1];
void *cpu_info;
int i;
part_hdr__part_name(diag204_info_type, part_hdr, lpar_name);
- lpar_name[LPAR_NAME_LEN] = 0;
+ lpar_name[DIAG204_LPAR_NAME_LEN] = 0;
lpar_dir = hypfs_mkdir(systems_dir, lpar_name);
if (IS_ERR(lpar_dir))
return lpar_dir;
goto err_out;
}
}
- if (info_blk_hdr__flags(diag204_info_type, time_hdr) & LPAR_PHYS_FLG) {
+ if (info_blk_hdr__flags(diag204_info_type, time_hdr) &
+ DIAG204_LPAR_PHYS_FLG) {
ptr = hypfs_create_phys_files(root, part_hdr);
if (IS_ERR(ptr)) {
rc = PTR_ERR(ptr);
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