#include <fcntl.h>
#include <string.h>
#include <assert.h>
+#include <pthread.h>
+#include <libgen.h>
#include "fio.h"
+#include "verify.h"
+#include "trim.h"
+#include "lib/rand.h"
+#include "lib/hweight.h"
+#include "lib/pattern.h"
-static void fill_random_bytes(struct thread_data *td,
- unsigned char *p, unsigned int len)
+#include "crc/md5.h"
+#include "crc/crc64.h"
+#include "crc/crc32.h"
+#include "crc/crc32c.h"
+#include "crc/crc16.h"
+#include "crc/crc7.h"
+#include "crc/sha256.h"
+#include "crc/sha512.h"
+#include "crc/sha1.h"
+#include "crc/xxhash.h"
+
+static void populate_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len);
+static void fill_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len, uint64_t rand_seed);
+static void __fill_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len, uint64_t rand_seed);
+
+void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len)
{
- unsigned int todo;
- int r;
+ (void)cpy_pattern(td->o.buffer_pattern, td->o.buffer_pattern_bytes, p, len);
+}
- while (len) {
- r = os_random_long(&td->verify_state);
+void __fill_buffer(struct thread_options *o, unsigned long seed, void *p,
+ unsigned int len)
+{
+ __fill_random_buf_percentage(seed, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
+}
- /*
- * lrand48_r seems to be broken and only fill the bottom
- * 32-bits, even on 64-bit archs with 64-bit longs
- */
- todo = sizeof(r);
- if (todo > len)
- todo = len;
+unsigned long fill_buffer(struct thread_data *td, void *p, unsigned int len)
+{
+ struct frand_state *fs = &td->verify_state;
+ struct thread_options *o = &td->o;
- memcpy(p, &r, todo);
+ return fill_random_buf_percentage(fs, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
+}
- len -= todo;
- p += todo;
+void fill_verify_pattern(struct thread_data *td, void *p, unsigned int len,
+ struct io_u *io_u, unsigned long seed, int use_seed)
+{
+ struct thread_options *o = &td->o;
+
+ if (!o->verify_pattern_bytes) {
+ dprint(FD_VERIFY, "fill random bytes len=%u\n", len);
+
+ if (use_seed)
+ __fill_buffer(o, seed, p, len);
+ else
+ io_u->rand_seed = fill_buffer(td, p, len);
+ return;
}
+
+ /* Skip if we were here and we do not need to patch pattern
+ * with format */
+ if (!td->o.verify_fmt_sz && io_u->buf_filled_len >= len) {
+ dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
+ o->verify_pattern_bytes, len);
+ return;
+ }
+
+ (void)paste_format(td->o.verify_pattern, td->o.verify_pattern_bytes,
+ td->o.verify_fmt, td->o.verify_fmt_sz,
+ p, len, io_u);
+ io_u->buf_filled_len = len;
+}
+
+static unsigned int get_hdr_inc(struct thread_data *td, struct io_u *io_u)
+{
+ unsigned int hdr_inc;
+
+ hdr_inc = io_u->buflen;
+ if (td->o.verify_interval && td->o.verify_interval <= io_u->buflen)
+ hdr_inc = td->o.verify_interval;
+
+ return hdr_inc;
+}
+
+static void fill_pattern_headers(struct thread_data *td, struct io_u *io_u,
+ unsigned long seed, int use_seed)
+{
+ unsigned int hdr_inc, header_num;
+ struct verify_header *hdr;
+ void *p = io_u->buf;
+
+ fill_verify_pattern(td, p, io_u->buflen, io_u, seed, use_seed);
+
+ hdr_inc = get_hdr_inc(td, io_u);
+ header_num = 0;
+ for (; p < io_u->buf + io_u->buflen; p += hdr_inc) {
+ hdr = p;
+ populate_hdr(td, io_u, hdr, header_num, hdr_inc);
+ header_num++;
+ }
+}
+
+static void memswp(void *buf1, void *buf2, unsigned int len)
+{
+ char swap[200];
+
+ assert(len <= sizeof(swap));
+
+ memcpy(&swap, buf1, len);
+ memcpy(buf1, buf2, len);
+ memcpy(buf2, &swap, len);
}
static void hexdump(void *buffer, int len)
int i;
for (i = 0; i < len; i++)
- log_info("%02x", p[i]);
- log_info("\n");
+ log_err("%02x", p[i]);
+ log_err("\n");
+}
+
+/*
+ * Prepare for separation of verify_header and checksum header
+ */
+static inline unsigned int __hdr_size(int verify_type)
+{
+ unsigned int len = 0;
+
+ switch (verify_type) {
+ case VERIFY_NONE:
+ case VERIFY_HDR_ONLY:
+ case VERIFY_NULL:
+ case VERIFY_PATTERN:
+ len = 0;
+ break;
+ case VERIFY_MD5:
+ len = sizeof(struct vhdr_md5);
+ break;
+ case VERIFY_CRC64:
+ len = sizeof(struct vhdr_crc64);
+ break;
+ case VERIFY_CRC32C:
+ case VERIFY_CRC32:
+ case VERIFY_CRC32C_INTEL:
+ len = sizeof(struct vhdr_crc32);
+ break;
+ case VERIFY_CRC16:
+ len = sizeof(struct vhdr_crc16);
+ break;
+ case VERIFY_CRC7:
+ len = sizeof(struct vhdr_crc7);
+ break;
+ case VERIFY_SHA256:
+ len = sizeof(struct vhdr_sha256);
+ break;
+ case VERIFY_SHA512:
+ len = sizeof(struct vhdr_sha512);
+ break;
+ case VERIFY_XXHASH:
+ len = sizeof(struct vhdr_xxhash);
+ break;
+ case VERIFY_SHA1:
+ len = sizeof(struct vhdr_sha1);
+ break;
+ case VERIFY_PATTERN_NO_HDR:
+ return 0;
+ default:
+ log_err("fio: unknown verify header!\n");
+ assert(0);
+ }
+
+ return len + sizeof(struct verify_header);
+}
+
+static inline unsigned int hdr_size(struct thread_data *td,
+ struct verify_header *hdr)
+{
+ if (td->o.verify == VERIFY_PATTERN_NO_HDR)
+ return 0;
+
+ return __hdr_size(hdr->verify_type);
+}
+
+static void *hdr_priv(struct verify_header *hdr)
+{
+ void *priv = hdr;
+
+ return priv + sizeof(struct verify_header);
+}
+
+/*
+ * Verify container, pass info to verify handlers and allow them to
+ * pass info back in case of error
+ */
+struct vcont {
+ /*
+ * Input
+ */
+ struct io_u *io_u;
+ unsigned int hdr_num;
+ struct thread_data *td;
+
+ /*
+ * Output, only valid in case of error
+ */
+ const char *name;
+ void *good_crc;
+ void *bad_crc;
+ unsigned int crc_len;
+};
+
+#define DUMP_BUF_SZ 255
+static int dump_buf_warned;
+
+static void dump_buf(char *buf, unsigned int len, unsigned long long offset,
+ const char *type, struct fio_file *f)
+{
+ char *ptr, fname[DUMP_BUF_SZ];
+ size_t buf_left = DUMP_BUF_SZ;
+ int ret, fd;
+
+ ptr = strdup(f->file_name);
+
+ memset(fname, 0, sizeof(fname));
+ if (aux_path)
+ sprintf(fname, "%s%s", aux_path, FIO_OS_PATH_SEPARATOR);
+
+ strncpy(fname + strlen(fname), basename(ptr), buf_left - 1);
+
+ buf_left -= strlen(fname);
+ if (buf_left <= 0) {
+ if (!dump_buf_warned) {
+ log_err("fio: verify failure dump buffer too small\n");
+ dump_buf_warned = 1;
+ }
+ free(ptr);
+ return;
+ }
+
+ snprintf(fname + strlen(fname), buf_left, ".%llu.%s", offset, type);
+
+ fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644);
+ if (fd < 0) {
+ perror("open verify buf file");
+ return;
+ }
+
+ while (len) {
+ ret = write(fd, buf, len);
+ if (!ret)
+ break;
+ else if (ret < 0) {
+ perror("write verify buf file");
+ break;
+ }
+ len -= ret;
+ buf += ret;
+ }
+
+ close(fd);
+ log_err(" %s data dumped as %s\n", type, fname);
+ free(ptr);
+}
+
+/*
+ * Dump the contents of the read block and re-generate the correct data
+ * and dump that too.
+ */
+static void __dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
+{
+ struct thread_data *td = vc->td;
+ struct io_u *io_u = vc->io_u;
+ unsigned long hdr_offset;
+ struct io_u dummy;
+ void *buf;
+
+ if (!td->o.verify_dump)
+ return;
+
+ /*
+ * Dump the contents we just read off disk
+ */
+ hdr_offset = vc->hdr_num * hdr->len;
+
+ dump_buf(io_u->buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
+ "received", vc->io_u->file);
+
+ /*
+ * Allocate a new buf and re-generate the original data
+ */
+ buf = malloc(io_u->buflen);
+ dummy = *io_u;
+ dummy.buf = buf;
+ dummy.rand_seed = hdr->rand_seed;
+ dummy.buf_filled_len = 0;
+ dummy.buflen = io_u->buflen;
+
+ fill_pattern_headers(td, &dummy, hdr->rand_seed, 1);
+
+ dump_buf(buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
+ "expected", vc->io_u->file);
+ free(buf);
+}
+
+static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
+{
+ struct thread_data *td = vc->td;
+ struct verify_header shdr;
+
+ if (td->o.verify == VERIFY_PATTERN_NO_HDR) {
+ __fill_hdr(td, vc->io_u, &shdr, 0, vc->io_u->buflen, 0);
+ hdr = &shdr;
+ }
+
+ __dump_verify_buffers(hdr, vc);
}
-static int verify_io_u_crc7(struct verify_header *hdr, struct io_u *io_u)
+static void log_verify_failure(struct verify_header *hdr, struct vcont *vc)
{
- unsigned char *p = io_u->buf;
+ unsigned long long offset;
+
+ offset = vc->io_u->offset;
+ offset += vc->hdr_num * hdr->len;
+ log_err("%.8s: verify failed at file %s offset %llu, length %u\n",
+ vc->name, vc->io_u->file->file_name, offset, hdr->len);
+
+ if (vc->good_crc && vc->bad_crc) {
+ log_err(" Expected CRC: ");
+ hexdump(vc->good_crc, vc->crc_len);
+ log_err(" Received CRC: ");
+ hexdump(vc->bad_crc, vc->crc_len);
+ }
+
+ dump_verify_buffers(hdr, vc);
+}
+
+/*
+ * Return data area 'header_num'
+ */
+static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc)
+{
+ return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(vc->td, hdr);
+}
+
+static int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc)
+{
+ struct thread_data *td = vc->td;
+ struct io_u *io_u = vc->io_u;
+ char *buf, *pattern;
+ unsigned int header_size = __hdr_size(td->o.verify);
+ unsigned int len, mod, i, pattern_size;
+ int rc;
+
+ pattern = td->o.verify_pattern;
+ pattern_size = td->o.verify_pattern_bytes;
+ assert(pattern_size != 0);
+
+ (void)paste_format_inplace(pattern, pattern_size,
+ td->o.verify_fmt, td->o.verify_fmt_sz, io_u);
+
+ buf = (void *) hdr + header_size;
+ len = get_hdr_inc(td, io_u) - header_size;
+ mod = (get_hdr_inc(td, io_u) * vc->hdr_num + header_size) % pattern_size;
+
+ rc = cmp_pattern(pattern, pattern_size, mod, buf, len);
+ if (!rc)
+ return 0;
+
+ /* Slow path, compare each byte */
+ for (i = 0; i < len; i++) {
+ if (buf[i] != pattern[mod]) {
+ unsigned int bits;
+
+ bits = hweight8(buf[i] ^ pattern[mod]);
+ log_err("fio: got pattern '%02x', wanted '%02x'. Bad bits %d\n",
+ (unsigned char)buf[i],
+ (unsigned char)pattern[mod],
+ bits);
+ log_err("fio: bad pattern block offset %u\n", i);
+ dump_verify_buffers(hdr, vc);
+ return EILSEQ;
+ }
+ mod++;
+ if (mod == td->o.verify_pattern_bytes)
+ mod = 0;
+ }
+
+ /* Unreachable line */
+ assert(0);
+ return EILSEQ;
+}
+
+static int verify_io_u_xxhash(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_xxhash *vh = hdr_priv(hdr);
+ uint32_t hash;
+ void *state;
+
+ dprint(FD_VERIFY, "xxhash verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ state = XXH32_init(1);
+ XXH32_update(state, p, hdr->len - hdr_size(vc->td, hdr));
+ hash = XXH32_digest(state);
+
+ if (vh->hash == hash)
+ return 0;
+
+ vc->name = "xxhash";
+ vc->good_crc = &vh->hash;
+ vc->bad_crc = &hash;
+ vc->crc_len = sizeof(hash);
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_sha512 *vh = hdr_priv(hdr);
+ uint8_t sha512[128];
+ struct fio_sha512_ctx sha512_ctx = {
+ .buf = sha512,
+ };
+
+ dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ fio_sha512_init(&sha512_ctx);
+ fio_sha512_update(&sha512_ctx, p, hdr->len - hdr_size(vc->td, hdr));
+
+ if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
+ return 0;
+
+ vc->name = "sha512";
+ vc->good_crc = vh->sha512;
+ vc->bad_crc = sha512_ctx.buf;
+ vc->crc_len = sizeof(vh->sha512);
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_sha256 *vh = hdr_priv(hdr);
+ uint8_t sha256[64];
+ struct fio_sha256_ctx sha256_ctx = {
+ .buf = sha256,
+ };
+
+ dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ fio_sha256_init(&sha256_ctx);
+ fio_sha256_update(&sha256_ctx, p, hdr->len - hdr_size(vc->td, hdr));
+ fio_sha256_final(&sha256_ctx);
+
+ if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
+ return 0;
+
+ vc->name = "sha256";
+ vc->good_crc = vh->sha256;
+ vc->bad_crc = sha256_ctx.buf;
+ vc->crc_len = sizeof(vh->sha256);
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_sha1 *vh = hdr_priv(hdr);
+ uint32_t sha1[5];
+ struct fio_sha1_ctx sha1_ctx = {
+ .H = sha1,
+ };
+
+ dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ fio_sha1_init(&sha1_ctx);
+ fio_sha1_update(&sha1_ctx, p, hdr->len - hdr_size(vc->td, hdr));
+ fio_sha1_final(&sha1_ctx);
+
+ if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
+ return 0;
+
+ vc->name = "sha1";
+ vc->good_crc = vh->sha1;
+ vc->bad_crc = sha1_ctx.H;
+ vc->crc_len = sizeof(vh->sha1);
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_crc7 *vh = hdr_priv(hdr);
unsigned char c;
- p += sizeof(*hdr);
- c = crc7(p, hdr->len - sizeof(*hdr));
+ dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
- if (c != hdr->crc7) {
- log_err("crc7: verify failed at %llu/%lu\n", io_u->offset, io_u->buflen);
- log_err("crc7: wanted %x, got %x\n", hdr->crc7, c);
- return 1;
+ c = fio_crc7(p, hdr->len - hdr_size(vc->td, hdr));
+
+ if (c == vh->crc7)
+ return 0;
+
+ vc->name = "crc7";
+ vc->good_crc = &vh->crc7;
+ vc->bad_crc = &c;
+ vc->crc_len = 1;
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_crc16 *vh = hdr_priv(hdr);
+ unsigned short c;
+
+ dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ c = fio_crc16(p, hdr->len - hdr_size(vc->td, hdr));
+
+ if (c == vh->crc16)
+ return 0;
+
+ vc->name = "crc16";
+ vc->good_crc = &vh->crc16;
+ vc->bad_crc = &c;
+ vc->crc_len = 2;
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_crc64 *vh = hdr_priv(hdr);
+ unsigned long long c;
+
+ dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ c = fio_crc64(p, hdr->len - hdr_size(vc->td, hdr));
+
+ if (c == vh->crc64)
+ return 0;
+
+ vc->name = "crc64";
+ vc->good_crc = &vh->crc64;
+ vc->bad_crc = &c;
+ vc->crc_len = 8;
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_crc32 *vh = hdr_priv(hdr);
+ uint32_t c;
+
+ dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ c = fio_crc32(p, hdr->len - hdr_size(vc->td, hdr));
+
+ if (c == vh->crc32)
+ return 0;
+
+ vc->name = "crc32";
+ vc->good_crc = &vh->crc32;
+ vc->bad_crc = &c;
+ vc->crc_len = 4;
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_crc32 *vh = hdr_priv(hdr);
+ uint32_t c;
+
+ dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ c = fio_crc32c(p, hdr->len - hdr_size(vc->td, hdr));
+
+ if (c == vh->crc32)
+ return 0;
+
+ vc->name = "crc32c";
+ vc->good_crc = &vh->crc32;
+ vc->bad_crc = &c;
+ vc->crc_len = 4;
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc)
+{
+ void *p = io_u_verify_off(hdr, vc);
+ struct vhdr_md5 *vh = hdr_priv(hdr);
+ uint32_t hash[MD5_HASH_WORDS];
+ struct fio_md5_ctx md5_ctx = {
+ .hash = hash,
+ };
+
+ dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
+
+ fio_md5_init(&md5_ctx);
+ fio_md5_update(&md5_ctx, p, hdr->len - hdr_size(vc->td, hdr));
+ fio_md5_final(&md5_ctx);
+
+ if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
+ return 0;
+
+ vc->name = "md5";
+ vc->good_crc = vh->md5_digest;
+ vc->bad_crc = md5_ctx.hash;
+ vc->crc_len = sizeof(hash);
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+/*
+ * Push IO verification to a separate thread
+ */
+int verify_io_u_async(struct thread_data *td, struct io_u **io_u_ptr)
+{
+ struct io_u *io_u = *io_u_ptr;
+
+ pthread_mutex_lock(&td->io_u_lock);
+
+ if (io_u->file)
+ put_file_log(td, io_u->file);
+
+ if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
+ td->cur_depth--;
+ io_u_clear(io_u, IO_U_F_IN_CUR_DEPTH);
}
+ flist_add_tail(&io_u->verify_list, &td->verify_list);
+ *io_u_ptr = NULL;
+ pthread_mutex_unlock(&td->io_u_lock);
+ pthread_cond_signal(&td->verify_cond);
return 0;
}
-static int verify_io_u_crc16(struct verify_header *hdr, struct io_u *io_u)
+/*
+ * Thanks Rusty, for spending the time so I don't have to.
+ *
+ * http://rusty.ozlabs.org/?p=560
+ */
+static int mem_is_zero(const void *data, size_t length)
{
- unsigned char *p = io_u->buf;
- unsigned short c;
+ const unsigned char *p = data;
+ size_t len;
- p += sizeof(*hdr);
- c = crc16(p, hdr->len - sizeof(*hdr));
+ /* Check first 16 bytes manually */
+ for (len = 0; len < 16; len++) {
+ if (!length)
+ return 1;
+ if (*p)
+ return 0;
+ p++;
+ length--;
+ }
- if (c != hdr->crc16) {
- log_err("crc16: verify failed at %llu/%lu\n", io_u->offset, io_u->buflen);
- log_err("crc16: wanted %x, got %x\n", hdr->crc16, c);
- return 1;
+ /* Now we know that's zero, memcmp with self. */
+ return memcmp(data, p, length) == 0;
+}
+
+static int mem_is_zero_slow(const void *data, size_t length, size_t *offset)
+{
+ const unsigned char *p = data;
+
+ *offset = 0;
+ while (length) {
+ if (*p)
+ break;
+ (*offset)++;
+ length--;
+ p++;
}
+ return !length;
+}
+
+static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u)
+{
+ size_t offset;
+
+ if (!td->o.trim_zero)
+ return 0;
+
+ if (mem_is_zero(io_u->buf, io_u->buflen))
+ return 0;
+
+ mem_is_zero_slow(io_u->buf, io_u->buflen, &offset);
+
+ log_err("trim: verify failed at file %s offset %llu, length %lu"
+ ", block offset %lu\n",
+ io_u->file->file_name, io_u->offset, io_u->buflen,
+ (unsigned long) offset);
+ return EILSEQ;
+}
+
+static int verify_header(struct io_u *io_u, struct thread_data *td,
+ struct verify_header *hdr, unsigned int hdr_num,
+ unsigned int hdr_len)
+{
+ void *p = hdr;
+ uint32_t crc;
+
+ if (hdr->magic != FIO_HDR_MAGIC) {
+ log_err("verify: bad magic header %x, wanted %x",
+ hdr->magic, FIO_HDR_MAGIC);
+ goto err;
+ }
+ if (hdr->len != hdr_len) {
+ log_err("verify: bad header length %u, wanted %u",
+ hdr->len, hdr_len);
+ goto err;
+ }
+ if (hdr->rand_seed != io_u->rand_seed) {
+ log_err("verify: bad header rand_seed %"PRIu64
+ ", wanted %"PRIu64,
+ hdr->rand_seed, io_u->rand_seed);
+ goto err;
+ }
+ if (hdr->offset != io_u->offset + hdr_num * td->o.verify_interval) {
+ log_err("verify: bad header offset %"PRIu64
+ ", wanted %llu",
+ hdr->offset, io_u->offset);
+ goto err;
+ }
+
+ /*
+ * For read-only workloads, the program cannot be certain of the
+ * last numberio written to a block. Checking of numberio will be
+ * done only for workloads that write data. For verify_only,
+ * numberio will be checked in the last iteration when the correct
+ * state of numberio, that would have been written to each block
+ * in a previous run of fio, has been reached.
+ */
+ if ((td_write(td) || td_rw(td)) && (td_min_bs(td) == td_max_bs(td)) &&
+ !td->o.time_based)
+ if (!td->o.verify_only || td->o.loops == 0)
+ if (hdr->numberio != io_u->numberio) {
+ log_err("verify: bad header numberio %"PRIu16
+ ", wanted %"PRIu16,
+ hdr->numberio, io_u->numberio);
+ goto err;
+ }
+
+ crc = fio_crc32c(p, offsetof(struct verify_header, crc32));
+ if (crc != hdr->crc32) {
+ log_err("verify: bad header crc %x, calculated %x",
+ hdr->crc32, crc);
+ goto err;
+ }
return 0;
+
+err:
+ log_err(" at file %s offset %llu, length %u\n",
+ io_u->file->file_name,
+ io_u->offset + hdr_num * hdr_len, hdr_len);
+ return EILSEQ;
+}
+
+int verify_io_u(struct thread_data *td, struct io_u **io_u_ptr)
+{
+ struct verify_header *hdr;
+ struct io_u *io_u = *io_u_ptr;
+ unsigned int header_size, hdr_inc, hdr_num = 0;
+ void *p;
+ int ret;
+
+ if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
+ return 0;
+ /*
+ * If the IO engine is faking IO (like null), then just pretend
+ * we verified everything.
+ */
+ if (td->io_ops->flags & FIO_FAKEIO)
+ return 0;
+
+ if (io_u->flags & IO_U_F_TRIMMED) {
+ ret = verify_trimmed_io_u(td, io_u);
+ goto done;
+ }
+
+ hdr_inc = get_hdr_inc(td, io_u);
+
+ ret = 0;
+ for (p = io_u->buf; p < io_u->buf + io_u->buflen;
+ p += hdr_inc, hdr_num++) {
+ struct vcont vc = {
+ .io_u = io_u,
+ .hdr_num = hdr_num,
+ .td = td,
+ };
+ unsigned int verify_type;
+
+ if (ret && td->o.verify_fatal)
+ break;
+
+ header_size = __hdr_size(td->o.verify);
+ if (td->o.verify_offset)
+ memswp(p, p + td->o.verify_offset, header_size);
+ hdr = p;
+
+ /*
+ * Make rand_seed check pass when have verifysort or
+ * verify_backlog.
+ */
+ if (td->o.verifysort || (td->flags & TD_F_VER_BACKLOG))
+ io_u->rand_seed = hdr->rand_seed;
+
+ if (td->o.verify != VERIFY_PATTERN_NO_HDR) {
+ ret = verify_header(io_u, td, hdr, hdr_num, hdr_inc);
+ if (ret)
+ return ret;
+ }
+
+ if (td->o.verify != VERIFY_NONE)
+ verify_type = td->o.verify;
+ else
+ verify_type = hdr->verify_type;
+
+ switch (verify_type) {
+ case VERIFY_HDR_ONLY:
+ /* Header is always verified, check if pattern is left
+ * for verification. */
+ if (td->o.verify_pattern_bytes)
+ ret = verify_io_u_pattern(hdr, &vc);
+ break;
+ case VERIFY_MD5:
+ ret = verify_io_u_md5(hdr, &vc);
+ break;
+ case VERIFY_CRC64:
+ ret = verify_io_u_crc64(hdr, &vc);
+ break;
+ case VERIFY_CRC32C:
+ case VERIFY_CRC32C_INTEL:
+ ret = verify_io_u_crc32c(hdr, &vc);
+ break;
+ case VERIFY_CRC32:
+ ret = verify_io_u_crc32(hdr, &vc);
+ break;
+ case VERIFY_CRC16:
+ ret = verify_io_u_crc16(hdr, &vc);
+ break;
+ case VERIFY_CRC7:
+ ret = verify_io_u_crc7(hdr, &vc);
+ break;
+ case VERIFY_SHA256:
+ ret = verify_io_u_sha256(hdr, &vc);
+ break;
+ case VERIFY_SHA512:
+ ret = verify_io_u_sha512(hdr, &vc);
+ break;
+ case VERIFY_XXHASH:
+ ret = verify_io_u_xxhash(hdr, &vc);
+ break;
+ case VERIFY_SHA1:
+ ret = verify_io_u_sha1(hdr, &vc);
+ break;
+ case VERIFY_PATTERN:
+ case VERIFY_PATTERN_NO_HDR:
+ ret = verify_io_u_pattern(hdr, &vc);
+ break;
+ default:
+ log_err("Bad verify type %u\n", hdr->verify_type);
+ ret = EINVAL;
+ }
+
+ if (ret && verify_type != hdr->verify_type)
+ log_err("fio: verify type mismatch (%u media, %u given)\n",
+ hdr->verify_type, verify_type);
+ }
+
+done:
+ if (ret && td->o.verify_fatal)
+ fio_mark_td_terminate(td);
+
+ return ret;
+}
+
+static void fill_xxhash(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_xxhash *vh = hdr_priv(hdr);
+ void *state;
+
+ state = XXH32_init(1);
+ XXH32_update(state, p, len);
+ vh->hash = XXH32_digest(state);
}
-static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u)
+static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
{
- unsigned char *p = io_u->buf;
- unsigned long c;
+ struct vhdr_sha512 *vh = hdr_priv(hdr);
+ struct fio_sha512_ctx sha512_ctx = {
+ .buf = vh->sha512,
+ };
- p += sizeof(*hdr);
- c = crc32(p, hdr->len - sizeof(*hdr));
+ fio_sha512_init(&sha512_ctx);
+ fio_sha512_update(&sha512_ctx, p, len);
+}
- if (c != hdr->crc32) {
- log_err("crc32: verify failed at %llu/%lu\n", io_u->offset, io_u->buflen);
- log_err("crc32: wanted %lx, got %lx\n", hdr->crc32, c);
- return 1;
- }
+static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_sha256 *vh = hdr_priv(hdr);
+ struct fio_sha256_ctx sha256_ctx = {
+ .buf = vh->sha256,
+ };
- return 0;
+ fio_sha256_init(&sha256_ctx);
+ fio_sha256_update(&sha256_ctx, p, len);
+ fio_sha256_final(&sha256_ctx);
}
-static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u)
+static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
{
- unsigned char *p = io_u->buf;
- struct md5_ctx md5_ctx;
+ struct vhdr_sha1 *vh = hdr_priv(hdr);
+ struct fio_sha1_ctx sha1_ctx = {
+ .H = vh->sha1,
+ };
- memset(&md5_ctx, 0, sizeof(md5_ctx));
- p += sizeof(*hdr);
- md5_update(&md5_ctx, p, hdr->len - sizeof(*hdr));
+ fio_sha1_init(&sha1_ctx);
+ fio_sha1_update(&sha1_ctx, p, len);
+ fio_sha1_final(&sha1_ctx);
+}
- if (memcmp(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash))) {
- log_err("md5: verify failed at %llu/%lu\n", io_u->offset, io_u->buflen);
- hexdump(hdr->md5_digest, sizeof(hdr->md5_digest));
- hexdump(md5_ctx.hash, sizeof(md5_ctx.hash));
- return 1;
- }
+static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_crc7 *vh = hdr_priv(hdr);
- return 0;
+ vh->crc7 = fio_crc7(p, len);
}
-int verify_io_u(struct thread_data *td, struct io_u *io_u)
+static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
{
- struct verify_header *hdr = (struct verify_header *) io_u->buf;
- int ret;
+ struct vhdr_crc16 *vh = hdr_priv(hdr);
- if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
- return 0;
+ vh->crc16 = fio_crc16(p, len);
+}
- if (hdr->fio_magic != FIO_HDR_MAGIC) {
- log_err("Bad verify header %x\n", hdr->fio_magic);
- return EIO;
- }
+static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_crc32 *vh = hdr_priv(hdr);
- switch (hdr->verify_type) {
- case VERIFY_MD5:
- ret = verify_io_u_md5(hdr, io_u);
- break;
- case VERIFY_CRC32:
- ret = verify_io_u_crc32(hdr, io_u);
- break;
- case VERIFY_CRC16:
- ret = verify_io_u_crc16(hdr, io_u);
- break;
- case VERIFY_CRC7:
- ret = verify_io_u_crc7(hdr, io_u);
- break;
- default:
- log_err("Bad verify type %u\n", hdr->verify_type);
- ret = 1;
- }
+ vh->crc32 = fio_crc32(p, len);
+}
- if (ret)
- return EIO;
+static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_crc32 *vh = hdr_priv(hdr);
- return 0;
+ vh->crc32 = fio_crc32c(p, len);
}
-static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
+static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
{
- hdr->crc7 = crc7(p, len);
+ struct vhdr_crc64 *vh = hdr_priv(hdr);
+
+ vh->crc64 = fio_crc64(p, len);
}
-static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
+static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
{
- hdr->crc16 = crc16(p, len);
+ struct vhdr_md5 *vh = hdr_priv(hdr);
+ struct fio_md5_ctx md5_ctx = {
+ .hash = (uint32_t *) vh->md5_digest,
+ };
+
+ fio_md5_init(&md5_ctx);
+ fio_md5_update(&md5_ctx, p, len);
+ fio_md5_final(&md5_ctx);
}
-static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
+static void __fill_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len, uint64_t rand_seed)
{
- hdr->crc32 = crc32(p, len);
+ void *p = hdr;
+
+ hdr->magic = FIO_HDR_MAGIC;
+ hdr->verify_type = td->o.verify;
+ hdr->len = header_len;
+ hdr->rand_seed = rand_seed;
+ hdr->offset = io_u->offset + header_num * td->o.verify_interval;
+ hdr->time_sec = io_u->start_time.tv_sec;
+ hdr->time_usec = io_u->start_time.tv_usec;
+ hdr->thread = td->thread_number;
+ hdr->numberio = io_u->numberio;
+ hdr->crc32 = fio_crc32c(p, offsetof(struct verify_header, crc32));
}
-static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
+
+static void fill_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len, uint64_t rand_seed)
{
- struct md5_ctx md5_ctx;
- memset(&md5_ctx, 0, sizeof(md5_ctx));
- md5_update(&md5_ctx, p, len);
- memcpy(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash));
+ if (td->o.verify != VERIFY_PATTERN_NO_HDR)
+ __fill_hdr(td, io_u, hdr, header_num, header_len, rand_seed);
}
-/*
- * fill body of io_u->buf with random data and add a header with the
- * crc32 or md5 sum of that data.
- */
-void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
+static void populate_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len)
{
- const unsigned int len = io_u->buflen - sizeof(struct verify_header);
- struct verify_header *hdr;
- unsigned char *p;
+ unsigned int data_len;
+ void *data, *p;
- if (td->o.verify == VERIFY_NULL)
- return;
+ p = (void *) hdr;
- hdr = (struct verify_header *) io_u->buf;
- hdr->fio_magic = FIO_HDR_MAGIC;
- hdr->len = io_u->buflen;
- hdr->verify_type = td->o.verify;
+ fill_hdr(td, io_u, hdr, header_num, header_len, io_u->rand_seed);
- p = io_u->buf + sizeof(*hdr);
- fill_random_bytes(td, p, len);
+ data_len = header_len - hdr_size(td, hdr);
+ data = p + hdr_size(td, hdr);
switch (td->o.verify) {
case VERIFY_MD5:
- fill_md5(hdr, p, len);
+ dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_md5(hdr, data, data_len);
+ break;
+ case VERIFY_CRC64:
+ dprint(FD_VERIFY, "fill crc64 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_crc64(hdr, data, data_len);
+ break;
+ case VERIFY_CRC32C:
+ case VERIFY_CRC32C_INTEL:
+ dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_crc32c(hdr, data, data_len);
break;
case VERIFY_CRC32:
- fill_crc32(hdr, p, len);
+ dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_crc32(hdr, data, data_len);
break;
case VERIFY_CRC16:
- fill_crc16(hdr, p, len);
+ dprint(FD_VERIFY, "fill crc16 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_crc16(hdr, data, data_len);
break;
case VERIFY_CRC7:
- fill_crc7(hdr, p, len);
+ dprint(FD_VERIFY, "fill crc7 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_crc7(hdr, data, data_len);
+ break;
+ case VERIFY_SHA256:
+ dprint(FD_VERIFY, "fill sha256 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_sha256(hdr, data, data_len);
+ break;
+ case VERIFY_SHA512:
+ dprint(FD_VERIFY, "fill sha512 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_sha512(hdr, data, data_len);
+ break;
+ case VERIFY_XXHASH:
+ dprint(FD_VERIFY, "fill xxhash io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_xxhash(hdr, data, data_len);
+ break;
+ case VERIFY_SHA1:
+ dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_sha1(hdr, data, data_len);
+ break;
+ case VERIFY_HDR_ONLY:
+ case VERIFY_PATTERN:
+ case VERIFY_PATTERN_NO_HDR:
+ /* nothing to do here */
break;
default:
log_err("fio: bad verify type: %d\n", td->o.verify);
assert(0);
}
+
+ if (td->o.verify_offset && hdr_size(td, hdr))
+ memswp(p, p + td->o.verify_offset, hdr_size(td, hdr));
+}
+
+/*
+ * fill body of io_u->buf with random data and add a header with the
+ * checksum of choice
+ */
+void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
+{
+ if (td->o.verify == VERIFY_NULL)
+ return;
+
+ io_u->numberio = td->io_issues[io_u->ddir];
+
+ fill_pattern_headers(td, io_u, 0, 0);
}
int get_next_verify(struct thread_data *td, struct io_u *io_u)
struct rb_node *n = rb_first(&td->io_hist_tree);
ipo = rb_entry(n, struct io_piece, rb_node);
+
+ /*
+ * Ensure that the associated IO has completed
+ */
+ read_barrier();
+ if (ipo->flags & IP_F_IN_FLIGHT)
+ goto nothing;
+
rb_erase(n, &td->io_hist_tree);
- } else if (!list_empty(&td->io_hist_list)) {
- ipo = list_entry(td->io_hist_list.next, struct io_piece, list);
- list_del(&ipo->list);
+ assert(ipo->flags & IP_F_ONRB);
+ ipo->flags &= ~IP_F_ONRB;
+ } else if (!flist_empty(&td->io_hist_list)) {
+ ipo = flist_first_entry(&td->io_hist_list, struct io_piece, list);
+
+ /*
+ * Ensure that the associated IO has completed
+ */
+ read_barrier();
+ if (ipo->flags & IP_F_IN_FLIGHT)
+ goto nothing;
+
+ flist_del(&ipo->list);
+ assert(ipo->flags & IP_F_ONLIST);
+ ipo->flags &= ~IP_F_ONLIST;
}
if (ipo) {
+ td->io_hist_len--;
+
io_u->offset = ipo->offset;
io_u->buflen = ipo->len;
+ io_u->numberio = ipo->numberio;
io_u->file = ipo->file;
+ io_u_set(io_u, IO_U_F_VER_LIST);
+
+ if (ipo->flags & IP_F_TRIMMED)
+ io_u_set(io_u, IO_U_F_TRIMMED);
- if ((io_u->file->flags & FIO_FILE_OPEN) == 0) {
+ if (!fio_file_open(io_u->file)) {
int r = td_io_open_file(td, io_u->file);
- if (r)
+ if (r) {
+ dprint(FD_VERIFY, "failed file %s open\n",
+ io_u->file->file_name);
return 1;
+ }
}
get_file(ipo->file);
- assert(io_u->file->flags & FIO_FILE_OPEN);
+ assert(fio_file_open(io_u->file));
io_u->ddir = DDIR_READ;
io_u->xfer_buf = io_u->buf;
io_u->xfer_buflen = io_u->buflen;
+
+ remove_trim_entry(td, ipo);
free(ipo);
+ dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u);
+
+ if (!td->o.verify_pattern_bytes) {
+ io_u->rand_seed = __rand(&td->verify_state);
+ if (sizeof(int) != sizeof(long *))
+ io_u->rand_seed *= __rand(&td->verify_state);
+ }
+ return 0;
+ }
+
+nothing:
+ dprint(FD_VERIFY, "get_next_verify: empty\n");
+ return 1;
+}
+
+void fio_verify_init(struct thread_data *td)
+{
+ if (td->o.verify == VERIFY_CRC32C_INTEL ||
+ td->o.verify == VERIFY_CRC32C) {
+ crc32c_intel_probe();
+ }
+}
+
+static void *verify_async_thread(void *data)
+{
+ struct thread_data *td = data;
+ struct io_u *io_u;
+ int ret = 0;
+
+ if (fio_option_is_set(&td->o, verify_cpumask) &&
+ fio_setaffinity(td->pid, td->o.verify_cpumask)) {
+ log_err("fio: failed setting verify thread affinity\n");
+ goto done;
+ }
+
+ do {
+ FLIST_HEAD(list);
+
+ read_barrier();
+ if (td->verify_thread_exit)
+ break;
+
+ pthread_mutex_lock(&td->io_u_lock);
+
+ while (flist_empty(&td->verify_list) &&
+ !td->verify_thread_exit) {
+ ret = pthread_cond_wait(&td->verify_cond,
+ &td->io_u_lock);
+ if (ret) {
+ pthread_mutex_unlock(&td->io_u_lock);
+ break;
+ }
+ }
+
+ flist_splice_init(&td->verify_list, &list);
+ pthread_mutex_unlock(&td->io_u_lock);
+
+ if (flist_empty(&list))
+ continue;
+
+ while (!flist_empty(&list)) {
+ io_u = flist_first_entry(&list, struct io_u, verify_list);
+ flist_del_init(&io_u->verify_list);
+
+ io_u_set(io_u, IO_U_F_NO_FILE_PUT);
+ ret = verify_io_u(td, &io_u);
+
+ put_io_u(td, io_u);
+ if (!ret)
+ continue;
+ if (td_non_fatal_error(td, ERROR_TYPE_VERIFY_BIT, ret)) {
+ update_error_count(td, ret);
+ td_clear_error(td);
+ ret = 0;
+ }
+ }
+ } while (!ret);
+
+ if (ret) {
+ td_verror(td, ret, "async_verify");
+ if (td->o.verify_fatal)
+ fio_mark_td_terminate(td);
+ }
+
+done:
+ pthread_mutex_lock(&td->io_u_lock);
+ td->nr_verify_threads--;
+ pthread_mutex_unlock(&td->io_u_lock);
+
+ pthread_cond_signal(&td->free_cond);
+ return NULL;
+}
+
+int verify_async_init(struct thread_data *td)
+{
+ int i, ret;
+ pthread_attr_t attr;
+
+ pthread_attr_init(&attr);
+ pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
+
+ td->verify_thread_exit = 0;
+
+ td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async);
+ for (i = 0; i < td->o.verify_async; i++) {
+ ret = pthread_create(&td->verify_threads[i], &attr,
+ verify_async_thread, td);
+ if (ret) {
+ log_err("fio: async verify creation failed: %s\n",
+ strerror(ret));
+ break;
+ }
+ ret = pthread_detach(td->verify_threads[i]);
+ if (ret) {
+ log_err("fio: async verify thread detach failed: %s\n",
+ strerror(ret));
+ break;
+ }
+ td->nr_verify_threads++;
+ }
+
+ pthread_attr_destroy(&attr);
+
+ if (i != td->o.verify_async) {
+ log_err("fio: only %d verify threads started, exiting\n", i);
+ td->verify_thread_exit = 1;
+ write_barrier();
+ pthread_cond_broadcast(&td->verify_cond);
+ return 1;
+ }
+
+ return 0;
+}
+
+void verify_async_exit(struct thread_data *td)
+{
+ td->verify_thread_exit = 1;
+ write_barrier();
+ pthread_cond_broadcast(&td->verify_cond);
+
+ pthread_mutex_lock(&td->io_u_lock);
+
+ while (td->nr_verify_threads)
+ pthread_cond_wait(&td->free_cond, &td->io_u_lock);
+
+ pthread_mutex_unlock(&td->io_u_lock);
+ free(td->verify_threads);
+ td->verify_threads = NULL;
+}
+
+int paste_blockoff(char *buf, unsigned int len, void *priv)
+{
+ struct io_u *io = priv;
+ unsigned long long off;
+
+ typecheck(typeof(off), io->offset);
+ off = cpu_to_le64((uint64_t)io->offset);
+ len = min(len, (unsigned int)sizeof(off));
+ memcpy(buf, &off, len);
+ return 0;
+}
+
+struct all_io_list *get_all_io_list(int save_mask, size_t *sz)
+{
+ struct all_io_list *rep;
+ struct thread_data *td;
+ size_t depth;
+ void *next;
+ int i, nr;
+
+ compiletime_assert(sizeof(struct all_io_list) == 8, "all_io_list");
+
+ /*
+ * Calculate reply space needed. We need one 'io_state' per thread,
+ * and the size will vary depending on depth.
+ */
+ depth = 0;
+ nr = 0;
+ for_each_td(td, i) {
+ if (save_mask != IO_LIST_ALL && (i + 1) != save_mask)
+ continue;
+ td->stop_io = 1;
+ td->flags |= TD_F_VSTATE_SAVED;
+ depth += td->o.iodepth;
+ nr++;
+ }
+
+ if (!nr)
+ return NULL;
+
+ *sz = sizeof(*rep);
+ *sz += nr * sizeof(struct thread_io_list);
+ *sz += depth * sizeof(uint64_t);
+ rep = malloc(*sz);
+
+ rep->threads = cpu_to_le64((uint64_t) nr);
+
+ next = &rep->state[0];
+ for_each_td(td, i) {
+ struct thread_io_list *s = next;
+ unsigned int comps;
+
+ if (save_mask != IO_LIST_ALL && (i + 1) != save_mask)
+ continue;
+
+ if (td->last_write_comp) {
+ int j, k;
+
+ if (td->io_blocks[DDIR_WRITE] < td->o.iodepth)
+ comps = td->io_blocks[DDIR_WRITE];
+ else
+ comps = td->o.iodepth;
+
+ k = td->last_write_idx - 1;
+ for (j = 0; j < comps; j++) {
+ if (k == -1)
+ k = td->o.iodepth - 1;
+ s->offsets[j] = cpu_to_le64(td->last_write_comp[k]);
+ k--;
+ }
+ } else
+ comps = 0;
+
+ s->no_comps = cpu_to_le64((uint64_t) comps);
+ s->depth = cpu_to_le64((uint64_t) td->o.iodepth);
+ s->numberio = cpu_to_le64((uint64_t) td->io_issues[DDIR_WRITE]);
+ s->index = cpu_to_le64((uint64_t) i);
+ if (td->random_state.use64) {
+ s->rand.state64.s[0] = cpu_to_le64(td->random_state.state64.s1);
+ s->rand.state64.s[1] = cpu_to_le64(td->random_state.state64.s2);
+ s->rand.state64.s[2] = cpu_to_le64(td->random_state.state64.s3);
+ s->rand.state64.s[3] = cpu_to_le64(td->random_state.state64.s4);
+ s->rand.state64.s[4] = cpu_to_le64(td->random_state.state64.s5);
+ s->rand.state64.s[5] = 0;
+ s->rand.use64 = cpu_to_le64((uint64_t)1);
+ } else {
+ s->rand.state32.s[0] = cpu_to_le32(td->random_state.state32.s1);
+ s->rand.state32.s[1] = cpu_to_le32(td->random_state.state32.s2);
+ s->rand.state32.s[2] = cpu_to_le32(td->random_state.state32.s3);
+ s->rand.state32.s[3] = 0;
+ s->rand.use64 = 0;
+ }
+ s->name[sizeof(s->name) - 1] = '\0';
+ strncpy((char *) s->name, td->o.name, sizeof(s->name) - 1);
+ next = io_list_next(s);
+ }
+
+ return rep;
+}
+
+static int open_state_file(const char *name, const char *prefix, int num,
+ int for_write)
+{
+ char out[64];
+ int flags;
+ int fd;
+
+ if (for_write)
+ flags = O_CREAT | O_TRUNC | O_WRONLY | O_SYNC;
+ else
+ flags = O_RDONLY;
+
+ verify_state_gen_name(out, sizeof(out), name, prefix, num);
+
+ fd = open(out, flags, 0644);
+ if (fd == -1) {
+ perror("fio: open state file");
+ return -1;
+ }
+
+ return fd;
+}
+
+static int write_thread_list_state(struct thread_io_list *s,
+ const char *prefix)
+{
+ struct verify_state_hdr hdr;
+ uint64_t crc;
+ ssize_t ret;
+ int fd;
+
+ fd = open_state_file((const char *) s->name, prefix, s->index, 1);
+ if (fd == -1)
+ return 1;
+
+ crc = fio_crc32c((void *)s, thread_io_list_sz(s));
+
+ hdr.version = cpu_to_le64((uint64_t) VSTATE_HDR_VERSION);
+ hdr.size = cpu_to_le64((uint64_t) thread_io_list_sz(s));
+ hdr.crc = cpu_to_le64(crc);
+ ret = write(fd, &hdr, sizeof(hdr));
+ if (ret != sizeof(hdr))
+ goto write_fail;
+
+ ret = write(fd, s, thread_io_list_sz(s));
+ if (ret != thread_io_list_sz(s)) {
+write_fail:
+ if (ret < 0)
+ perror("fio: write state file");
+ log_err("fio: failed to write state file\n");
+ ret = 1;
+ } else
+ ret = 0;
+
+ close(fd);
+ return ret;
+}
+
+void __verify_save_state(struct all_io_list *state, const char *prefix)
+{
+ struct thread_io_list *s = &state->state[0];
+ unsigned int i;
+
+ for (i = 0; i < le64_to_cpu(state->threads); i++) {
+ write_thread_list_state(s, prefix);
+ s = io_list_next(s);
+ }
+}
+
+void verify_save_state(int mask)
+{
+ struct all_io_list *state;
+ size_t sz;
+
+ state = get_all_io_list(mask, &sz);
+ if (state) {
+ char prefix[PATH_MAX];
+
+ if (aux_path)
+ sprintf(prefix, "%s%slocal", aux_path, FIO_OS_PATH_SEPARATOR);
+ else
+ strcpy(prefix, "local");
+
+ __verify_save_state(state, prefix);
+ free(state);
+ }
+}
+
+void verify_free_state(struct thread_data *td)
+{
+ if (td->vstate)
+ free(td->vstate);
+}
+
+static struct thread_io_list *convert_v1_list(struct thread_io_list_v1 *s)
+{
+ struct thread_io_list *til;
+ int i;
+
+ til = malloc(__thread_io_list_sz(s->no_comps));
+ til->no_comps = s->no_comps;
+ til->depth = s->depth;
+ til->numberio = s->numberio;
+ til->index = s->index;
+ memcpy(til->name, s->name, sizeof(til->name));
+
+ til->rand.use64 = 0;
+ for (i = 0; i < 4; i++)
+ til->rand.state32.s[i] = s->rand.s[i];
+
+ for (i = 0; i < s->no_comps; i++)
+ til->offsets[i] = s->offsets[i];
+
+ return til;
+}
+
+void verify_convert_assign_state(struct thread_data *td, void *p, int version)
+{
+ struct thread_io_list *til;
+ int i;
+
+ if (version == 1) {
+ struct thread_io_list_v1 *s = p;
+
+ s->no_comps = le64_to_cpu(s->no_comps);
+ s->depth = le64_to_cpu(s->depth);
+ s->numberio = le64_to_cpu(s->numberio);
+ for (i = 0; i < 4; i++)
+ s->rand.s[i] = le32_to_cpu(s->rand.s[i]);
+ for (i = 0; i < s->no_comps; i++)
+ s->offsets[i] = le64_to_cpu(s->offsets[i]);
+
+ til = convert_v1_list(s);
+ free(s);
+ } else {
+ struct thread_io_list *s = p;
+
+ s->no_comps = le64_to_cpu(s->no_comps);
+ s->depth = le64_to_cpu(s->depth);
+ s->numberio = le64_to_cpu(s->numberio);
+ s->rand.use64 = le64_to_cpu(s->rand.use64);
+
+ if (s->rand.use64) {
+ for (i = 0; i < 6; i++)
+ s->rand.state64.s[i] = le64_to_cpu(s->rand.state64.s[i]);
+ } else {
+ for (i = 0; i < 4; i++)
+ s->rand.state32.s[i] = le32_to_cpu(s->rand.state32.s[i]);
+ }
+ for (i = 0; i < s->no_comps; i++)
+ s->offsets[i] = le64_to_cpu(s->offsets[i]);
+
+ til = p;
+ }
+
+ td->vstate = til;
+}
+
+int verify_state_hdr(struct verify_state_hdr *hdr, struct thread_io_list *s,
+ int *version)
+{
+ uint64_t crc;
+
+ hdr->version = le64_to_cpu(hdr->version);
+ hdr->size = le64_to_cpu(hdr->size);
+ hdr->crc = le64_to_cpu(hdr->crc);
+
+ if (hdr->version != VSTATE_HDR_VERSION ||
+ hdr->version != VSTATE_HDR_VERSION_V1)
+ return 1;
+
+ crc = fio_crc32c((void *)s, hdr->size);
+ if (crc != hdr->crc)
+ return 1;
+
+ *version = hdr->version;
+ return 0;
+}
+
+int verify_load_state(struct thread_data *td, const char *prefix)
+{
+ struct verify_state_hdr hdr;
+ void *s = NULL;
+ uint64_t crc;
+ ssize_t ret;
+ int fd;
+
+ if (!td->o.verify_state)
return 0;
+
+ fd = open_state_file(td->o.name, prefix, td->thread_number - 1, 0);
+ if (fd == -1)
+ return 1;
+
+ ret = read(fd, &hdr, sizeof(hdr));
+ if (ret != sizeof(hdr)) {
+ if (ret < 0)
+ td_verror(td, errno, "read verify state hdr");
+ log_err("fio: failed reading verify state header\n");
+ goto err;
+ }
+
+ hdr.version = le64_to_cpu(hdr.version);
+ hdr.size = le64_to_cpu(hdr.size);
+ hdr.crc = le64_to_cpu(hdr.crc);
+
+ if (hdr.version != VSTATE_HDR_VERSION &&
+ hdr.version != VSTATE_HDR_VERSION_V1) {
+ log_err("fio: bad version in verify state header\n");
+ goto err;
+ }
+
+ s = malloc(hdr.size);
+ ret = read(fd, s, hdr.size);
+ if (ret != hdr.size) {
+ if (ret < 0)
+ td_verror(td, errno, "read verify state");
+ log_err("fio: failed reading verity state\n");
+ goto err;
+ }
+
+ crc = fio_crc32c(s, hdr.size);
+ if (crc != hdr.crc) {
+ log_err("fio: verify state is corrupt\n");
+ goto err;
}
+ close(fd);
+
+ verify_convert_assign_state(td, s, hdr.version);
+ return 0;
+err:
+ if (s)
+ free(s);
+ close(fd);
+ return 1;
+}
+
+/*
+ * Use the loaded verify state to know when to stop doing verification
+ */
+int verify_state_should_stop(struct thread_data *td, struct io_u *io_u)
+{
+ struct thread_io_list *s = td->vstate;
+ int i;
+
+ if (!s)
+ return 0;
+
+ /*
+ * If we're not into the window of issues - depth yet, continue. If
+ * issue is shorter than depth, do check.
+ */
+ if ((td->io_blocks[DDIR_READ] < s->depth ||
+ s->numberio - td->io_blocks[DDIR_READ] > s->depth) &&
+ s->numberio > s->depth)
+ return 0;
+
+ /*
+ * We're in the window of having to check if this io was
+ * completed or not. If the IO was seen as completed, then
+ * lets verify it.
+ */
+ for (i = 0; i < s->no_comps; i++)
+ if (io_u->offset == s->offsets[i])
+ return 0;
+
+ /*
+ * Not found, we have to stop
+ */
return 1;
}
projects / fio.git / blobdiff