*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2014 by Delphix. All rights reserved.
+ * Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+ * Copyright Saso Kiselkov 2013, All rights reserved.
*/
#ifndef _SYS_ZIO_CHECKSUM_H
#define _SYS_ZIO_CHECKSUM_H
#include <sys/zio.h>
+#include <zfeature_common.h>
+#include <zfs_fletcher.h>
#ifdef __cplusplus
extern "C" {
#endif
+struct abd;
+
/*
* Signature for checksum functions.
*/
-typedef void zio_checksum_func_t(const void *, uint64_t, zio_cksum_t *);
+typedef void zio_checksum_t(struct abd *abd, uint64_t size,
+ const void *ctx_template, zio_cksum_t *zcp);
+typedef void *zio_checksum_tmpl_init_t(const zio_cksum_salt_t *salt);
+typedef void zio_checksum_tmpl_free_t(void *ctx_template);
+
+typedef enum zio_checksum_flags {
+ /* Strong enough for metadata? */
+ ZCHECKSUM_FLAG_METADATA = (1 << 1),
+ /* ZIO embedded checksum */
+ ZCHECKSUM_FLAG_EMBEDDED = (1 << 2),
+ /* Strong enough for dedup (without verification)? */
+ ZCHECKSUM_FLAG_DEDUP = (1 << 3),
+ /* Uses salt value */
+ ZCHECKSUM_FLAG_SALTED = (1 << 4),
+ /* Strong enough for nopwrite? */
+ ZCHECKSUM_FLAG_NOPWRITE = (1 << 5)
+} zio_checksum_flags_t;
+
+typedef enum {
+ ZIO_CHECKSUM_NATIVE,
+ ZIO_CHECKSUM_BYTESWAP
+} zio_byteorder_t;
+
+typedef struct zio_abd_checksum_data {
+ zio_byteorder_t acd_byteorder;
+ fletcher_4_ctx_t *acd_ctx;
+ zio_cksum_t *acd_zcp;
+ void *acd_private;
+} zio_abd_checksum_data_t;
+
+typedef void zio_abd_checksum_init_t(zio_abd_checksum_data_t *);
+typedef void zio_abd_checksum_fini_t(zio_abd_checksum_data_t *);
+typedef int zio_abd_checksum_iter_t(void *, size_t, void *);
+
+typedef const struct zio_abd_checksum_func {
+ zio_abd_checksum_init_t *acf_init;
+ zio_abd_checksum_fini_t *acf_fini;
+ zio_abd_checksum_iter_t *acf_iter;
+} zio_abd_checksum_func_t;
/*
* Information about each checksum function.
*/
typedef const struct zio_checksum_info {
- zio_checksum_func_t *ci_func[2]; /* checksum function per byteorder */
- int ci_correctable; /* number of correctable bits */
- int ci_eck; /* uses zio embedded checksum? */
- boolean_t ci_dedup; /* strong enough for dedup? */
- char *ci_name; /* descriptive name */
+ /* checksum function for each byteorder */
+ zio_checksum_t *ci_func[2];
+ zio_checksum_tmpl_init_t *ci_tmpl_init;
+ zio_checksum_tmpl_free_t *ci_tmpl_free;
+ zio_checksum_flags_t ci_flags;
+ char *ci_name; /* descriptive name */
} zio_checksum_info_t;
typedef struct zio_bad_cksum {
/*
* Checksum routines.
*/
-extern zio_checksum_func_t zio_checksum_SHA256;
+extern zio_checksum_t abd_checksum_SHA256;
+extern zio_checksum_t abd_checksum_SHA512_native;
+extern zio_checksum_t abd_checksum_SHA512_byteswap;
+
+/* Skein */
+extern zio_checksum_t abd_checksum_skein_native;
+extern zio_checksum_t abd_checksum_skein_byteswap;
+extern zio_checksum_tmpl_init_t abd_checksum_skein_tmpl_init;
+extern zio_checksum_tmpl_free_t abd_checksum_skein_tmpl_free;
+
+/* Edon-R */
+extern zio_checksum_t abd_checksum_edonr_native;
+extern zio_checksum_t abd_checksum_edonr_byteswap;
+extern zio_checksum_tmpl_init_t abd_checksum_edonr_tmpl_init;
+extern zio_checksum_tmpl_free_t abd_checksum_edonr_tmpl_free;
+
+extern zio_abd_checksum_func_t fletcher_4_abd_ops;
+extern zio_checksum_t abd_fletcher_4_native;
+extern zio_checksum_t abd_fletcher_4_byteswap;
extern int zio_checksum_equal(spa_t *, blkptr_t *, enum zio_checksum,
void *, uint64_t, uint64_t, zio_bad_cksum_t *);
-extern void zio_checksum_compute(zio_t *zio, enum zio_checksum checksum,
- void *data, uint64_t size);
-extern int zio_checksum_error_impl(spa_t *, blkptr_t *, enum zio_checksum,
- void *, uint64_t, uint64_t, zio_bad_cksum_t *);
+extern void zio_checksum_compute(zio_t *, enum zio_checksum,
+ struct abd *, uint64_t);
+extern int zio_checksum_error_impl(spa_t *, const blkptr_t *, enum zio_checksum,
+ struct abd *, uint64_t, uint64_t, zio_bad_cksum_t *);
extern int zio_checksum_error(zio_t *zio, zio_bad_cksum_t *out);
extern enum zio_checksum spa_dedup_checksum(spa_t *spa);
+extern void zio_checksum_templates_free(spa_t *spa);
+extern spa_feature_t zio_checksum_to_feature(enum zio_checksum cksum);
#ifdef __cplusplus
}