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Use fletcher_4 routines natively with abd_iterate_func()

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This patch adds the necessary infrastructure for ABD to make use
of the vectorized fletcher 4 routines.

- export ABD compatible interface from fletcher_4
- add ABD fletcher_4 tests for data and metadata ABD types.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Original-patch-by: Gvozden Neskovic <neskovic@gmail.com>
Signed-off-by: David Quigley <david.quigley@intel.com>
Closes #5589
This commit is contained in:
David Quigley
2017-02-01 10:34:22 -07:00
committed by Brian Behlendorf
parent 544b8053db
commit 2fe36b0bfb
4 changed files with 167 additions and 8 deletions
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include/sys/zio_checksum.h
+27
View File
@@ -29,6 +29,7 @@
#include <sys/zio.h>
#include <zfeature_common.h>
#include <zfs_fletcher.h>
#ifdef __cplusplus
extern "C" {
@@ -57,6 +58,28 @@ typedef enum zio_checksum_flags {
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.
*/
@@ -99,6 +122,10 @@ 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 *, enum zio_checksum,