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-rw-r--r--cmd/ztest/ztest.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/cmd/ztest/ztest.c b/cmd/ztest/ztest.c
index 912a7f70e..1491e8734 100644
--- a/cmd/ztest/ztest.c
+++ b/cmd/ztest/ztest.c
@@ -332,6 +332,7 @@ ztest_func_t ztest_split_pool;
ztest_func_t ztest_reguid;
ztest_func_t ztest_spa_upgrade;
ztest_func_t ztest_fletcher;
+ztest_func_t ztest_fletcher_incr;
ztest_func_t ztest_verify_dnode_bt;
uint64_t zopt_always = 0ULL * NANOSEC; /* all the time */
@@ -379,6 +380,7 @@ ztest_info_t ztest_info[] = {
ZTI_INIT(ztest_vdev_add_remove, 1, &ztest_opts.zo_vdevtime),
ZTI_INIT(ztest_vdev_aux_add_remove, 1, &ztest_opts.zo_vdevtime),
ZTI_INIT(ztest_fletcher, 1, &zopt_rarely),
+ ZTI_INIT(ztest_fletcher_incr, 1, &zopt_rarely),
ZTI_INIT(ztest_verify_dnode_bt, 1, &zopt_sometimes),
};
@@ -5674,6 +5676,82 @@ ztest_fletcher(ztest_ds_t *zd, uint64_t id)
}
}
+void
+ztest_fletcher_incr(ztest_ds_t *zd, uint64_t id)
+{
+ void *buf;
+ size_t size;
+ int *ptr;
+ int i;
+ zio_cksum_t zc_ref;
+ zio_cksum_t zc_ref_bswap;
+
+ hrtime_t end = gethrtime() + NANOSEC;
+
+ while (gethrtime() <= end) {
+ int run_count = 100;
+
+ size = ztest_random_blocksize();
+ buf = umem_alloc(size, UMEM_NOFAIL);
+
+ for (i = 0, ptr = buf; i < size / sizeof (*ptr); i++, ptr++)
+ *ptr = ztest_random(UINT_MAX);
+
+ VERIFY0(fletcher_4_impl_set("scalar"));
+ fletcher_4_native(buf, size, NULL, &zc_ref);
+ fletcher_4_byteswap(buf, size, NULL, &zc_ref_bswap);
+
+ VERIFY0(fletcher_4_impl_set("cycle"));
+
+ while (run_count-- > 0) {
+ zio_cksum_t zc;
+ zio_cksum_t zc_bswap;
+ size_t pos = 0;
+
+ ZIO_SET_CHECKSUM(&zc, 0, 0, 0, 0);
+ ZIO_SET_CHECKSUM(&zc_bswap, 0, 0, 0, 0);
+
+ while (pos < size) {
+ size_t inc = 64 * ztest_random(size / 67);
+ /* sometimes add few bytes to test non-simd */
+ if (ztest_random(100) < 10)
+ inc += P2ALIGN(ztest_random(64),
+ sizeof (uint32_t));
+
+ if (inc > (size - pos))
+ inc = size - pos;
+
+ fletcher_4_incremental_native(buf + pos, inc,
+ &zc);
+ fletcher_4_incremental_byteswap(buf + pos, inc,
+ &zc_bswap);
+
+ pos += inc;
+ }
+
+ VERIFY3U(pos, ==, size);
+
+ VERIFY(ZIO_CHECKSUM_EQUAL(zc, zc_ref));
+ VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap, zc_ref_bswap));
+
+ /*
+ * verify if incremental on the whole buffer is
+ * equivalent to non-incremental version
+ */
+ ZIO_SET_CHECKSUM(&zc, 0, 0, 0, 0);
+ ZIO_SET_CHECKSUM(&zc_bswap, 0, 0, 0, 0);
+
+ fletcher_4_incremental_native(buf, size, &zc);
+ fletcher_4_incremental_byteswap(buf, size, &zc_bswap);
+
+ VERIFY(ZIO_CHECKSUM_EQUAL(zc, zc_ref));
+ VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap, zc_ref_bswap));
+ }
+
+ umem_free(buf, size);
+ }
+}
+
static int
ztest_check_path(char *path)
{