-#if !defined(__BLKTRACE_H__)
-#define __BLKTRACE_H__ 1
-
-#include <asm/types.h>
-
-enum {
- BLK_TC_READ = 1 << 0, /* reads */
- BLK_TC_WRITE = 1 << 1, /* writes */
- BLK_TC_BARRIER = 1 << 2, /* barrier */
- BLK_TC_SYNC = 1 << 3, /* barrier */
- BLK_TC_QUEUE = 1 << 4, /* queueing/merging */
- BLK_TC_REQUEUE = 1 << 5, /* requeueing */
- BLK_TC_ISSUE = 1 << 6, /* issue */
- BLK_TC_COMPLETE = 1 << 7, /* completions */
- BLK_TC_FS = 1 << 8, /* fs requests */
- BLK_TC_PC = 1 << 9, /* pc requests */
-
- BLK_TC_END = 1 << 15, /* only 16-bits, reminder */
+#ifndef BLKTRACE_H
+#define BLKTRACE_H
+
+#include <stdio.h>
+#include <limits.h>
+#include <byteswap.h>
+#include <endian.h>
+#include <sys/types.h>
+
+#include "blktrace_api.h"
+#include "rbtree.h"
+
+#define MINORBITS 20
+#define MINORMASK ((1U << MINORBITS) - 1)
+#define MAJOR(dev) ((unsigned int) ((dev) >> MINORBITS))
+#define MINOR(dev) ((unsigned int) ((dev) & MINORMASK))
+
+#define SECONDS(x) ((unsigned long long)(x) / 1000000000)
+#define NANO_SECONDS(x) ((unsigned long long)(x) % 1000000000)
+#define DOUBLE_TO_NANO_ULL(d) ((unsigned long long)((d) * 1000000000))
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#define max(a, b) ((a) > (b) ? (a) : (b))
+
+#define t_sec(t) ((t)->bytes >> 9)
+#define t_kb(t) ((t)->bytes >> 10)
+#define t_b(t) ((t)->bytes & 1023)
+
+typedef __u32 u32;
+typedef __u8 u8;
+
+struct io_stats {
+ unsigned long qreads, qwrites, creads, cwrites, mreads, mwrites;
+ unsigned long ireads, iwrites, rrqueue, wrqueue;
+ unsigned long long qread_kb, qwrite_kb, cread_kb, cwrite_kb;
+ unsigned long long qread_b, qwrite_b, cread_b, cwrite_b;
+ unsigned long long iread_kb, iwrite_kb;
+ unsigned long long mread_kb, mwrite_kb;
+ unsigned long long mread_b, mwrite_b, iread_b, iwrite_b;
+ unsigned long qreads_pc, qwrites_pc, ireads_pc, iwrites_pc;
+ unsigned long rrqueue_pc, wrqueue_pc, creads_pc, cwrites_pc;
+ unsigned long long qread_kb_pc, qwrite_kb_pc, iread_kb_pc, iwrite_kb_pc;
+ unsigned long long qread_b_pc, qwrite_b_pc, iread_b_pc, iwrite_b_pc;
+ unsigned long io_unplugs, timer_unplugs;
};
-#define BLK_TC_SHIFT (16)
-#define BLK_TC_ACT(act) ((act) << BLK_TC_SHIFT)
+struct per_cpu_info {
+ unsigned int cpu;
+ unsigned int nelems;
-/*
- * Basic trace actions
- */
-enum {
- __BLK_TA_QUEUE = 1, /* queued */
- __BLK_TA_BACKMERGE, /* back merged to existing rq */
- __BLK_TA_FRONTMERGE, /* front merge to existing rq */
- __BLK_TA_GETRQ, /* allocated new request */
- __BLK_TA_SLEEPRQ, /* sleeping on rq allocation */
- __BLK_TA_REQUEUE, /* request requeued */
- __BLK_TA_ISSUE, /* sent to driver */
- __BLK_TA_COMPLETE, /* completed by driver */
+ int fd;
+ int fdblock;
+ char fname[PATH_MAX];
+
+ struct io_stats io_stats;
+
+ struct rb_root rb_last;
+ unsigned long rb_last_entries;
+ unsigned long last_sequence;
+ unsigned long smallest_seq_read;
+
+ struct skip_info *skips_head;
+ struct skip_info *skips_tail;
};
+extern FILE *ofp;
+extern int data_is_native;
+extern struct timespec abs_start_time;
+
+#define CHECK_MAGIC(t) (((t)->magic & 0xffffff00) == BLK_IO_TRACE_MAGIC)
+#define SUPPORTED_VERSION (0x07)
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define be16_to_cpu(x) __bswap_16(x)
+#define be32_to_cpu(x) __bswap_32(x)
+#define be64_to_cpu(x) __bswap_64(x)
+#define cpu_to_be16(x) __bswap_16(x)
+#define cpu_to_be32(x) __bswap_32(x)
+#define cpu_to_be64(x) __bswap_64(x)
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define be16_to_cpu(x) (x)
+#define be32_to_cpu(x) (x)
+#define be64_to_cpu(x) (x)
+#define cpu_to_be16(x) (x)
+#define cpu_to_be32(x) (x)
+#define cpu_to_be64(x) (x)
+#else
+#error "Bad arch"
+#endif
+
+static inline int verify_trace(struct blk_io_trace *t)
+{
+ if (!CHECK_MAGIC(t)) {
+ fprintf(stderr, "bad trace magic %x\n", t->magic);
+ return 1;
+ }
+ if ((t->magic & 0xff) != SUPPORTED_VERSION) {
+ fprintf(stderr, "unsupported trace version %x\n",
+ t->magic & 0xff);
+ return 1;
+ }
+
+ return 0;
+}
+
+static inline void trace_to_cpu(struct blk_io_trace *t)
+{
+ if (data_is_native)
+ return;
+
+ t->magic = be32_to_cpu(t->magic);
+ t->sequence = be32_to_cpu(t->sequence);
+ t->time = be64_to_cpu(t->time);
+ t->sector = be64_to_cpu(t->sector);
+ t->bytes = be32_to_cpu(t->bytes);
+ t->action = be32_to_cpu(t->action);
+ t->pid = be32_to_cpu(t->pid);
+ t->device = be32_to_cpu(t->device);
+ t->cpu = be32_to_cpu(t->cpu);
+ t->error = be16_to_cpu(t->error);
+ t->pdu_len = be16_to_cpu(t->pdu_len);
+}
+
/*
- * Trace actions in full. Additionally, read or write is masked
+ * check whether data is native or not
*/
-#define BLK_TA_QUEUE (__BLK_TA_QUEUE | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_BACKMERGE (__BLK_TA_BACKMERGE | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_FRONTMERGE (__BLK_TA_FRONTMERGE | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_GETRQ (__BLK_TA_GETRQ | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_SLEEPRQ (__BLK_TA_SLEEPRQ | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_REQUEUE (__BLK_TA_REQUEUE | BLK_TC_ACT(BLK_TC_QUEUE))
-#define BLK_TA_ISSUE (__BLK_TA_ISSUE | BLK_TC_ACT(BLK_TC_ISSUE))
-#define BLK_TA_COMPLETE (__BLK_TA_COMPLETE| BLK_TC_ACT(BLK_TC_COMPLETE))
-
-#define BLK_IO_TRACE_MAGIC (0x65617400)
-#define CHECK_MAGIC(t) (((t)->magic & 0xffffff00) == BLK_IO_TRACE_MAGIC)
-#define SUPPORTED_VERSION (0x02)
-
-struct blk_io_trace {
- __u32 magic;
- __u32 sequence;
- __u64 time;
- __u64 sector;
- __u32 bytes;
- __u32 action;
- __u32 pid;
- __u16 error;
- __u16 pdu_len;
-};
+static inline int check_data_endianness(u32 magic)
+{
+ if ((magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) {
+ data_is_native = 1;
+ return 0;
+ }
-struct blk_user_trace_setup {
- char name[32];
- __u16 act_mask;
- __u32 buf_size;
- __u32 buf_nr;
-};
+ magic = __bswap_32(magic);
+ if ((magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) {
+ data_is_native = 0;
+ return 0;
+ }
+ return 1;
+}
-#ifndef BLKSTARTTRACE
-#define BLKSTARTTRACE _IOWR(0x12,115,struct blk_user_trace_setup)
-#define BLKSTOPTRACE _IO(0x12,116)
-#endif
+extern void set_all_format_specs(char *);
+extern int add_format_spec(char *);
+extern void process_fmt(char *, struct per_cpu_info *, struct blk_io_trace *,
+ unsigned long long, int, unsigned char *);
+extern int valid_act_opt(int);
+extern int find_mask_map(char *);
+extern char *find_process_name(pid_t);
#endif
projects / blktrace.git / blobdiff