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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2014 by Chunwei Chen. All rights reserved.
* Copyright (c) 2016, 2019 by Delphix. All rights reserved.
*/
#ifndef _ABD_OS_H
#define _ABD_OS_H
#ifdef __cplusplus
extern "C" {
#endif
struct abd_scatter {
uint_t abd_offset;
uint_t abd_nents;
struct scatterlist *abd_sgl;
};
struct abd_linear {
void *abd_buf;
struct scatterlist *abd_sgl; /* for LINEAR_PAGE */
};
typedef struct abd abd_t;
typedef int abd_iter_page_func_t(struct page *, size_t, size_t, void *);
int abd_iterate_page_func(abd_t *, size_t, size_t, abd_iter_page_func_t *,
void *);
/*
* Linux ABD bio functions
* Note: these are only needed to support vdev_classic. See comment in
* vdev_disk.c.
*/
unsigned int abd_bio_map_off(struct bio *, abd_t *, unsigned int, size_t);
unsigned long abd_nr_pages_off(abd_t *, unsigned int, size_t);
#ifdef __cplusplus
}
#endif
#endif /* _ABD_H */
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