1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (C) 2016 Gvozden Neskovic <[email protected]>. 23 */ 24 25 #ifndef _SYS_VDEV_RAIDZ_H 26 #define _SYS_VDEV_RAIDZ_H 27 28 #include <sys/types.h> 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 struct zio; 35 struct raidz_row; 36 struct raidz_map; 37 #if !defined(_KERNEL) 38 struct kernel_param {}; 39 #endif 40 41 /* 42 * vdev_raidz interface 43 */ 44 struct raidz_map *vdev_raidz_map_alloc(struct zio *, uint64_t, uint64_t, 45 uint64_t); 46 void vdev_raidz_map_free(struct raidz_map *); 47 void vdev_raidz_generate_parity_row(struct raidz_map *, struct raidz_row *); 48 void vdev_raidz_generate_parity(struct raidz_map *); 49 void vdev_raidz_reconstruct(struct raidz_map *, const int *, int); 50 void vdev_raidz_child_done(zio_t *); 51 void vdev_raidz_io_done(zio_t *); 52 53 /* 54 * vdev_raidz_math interface 55 */ 56 void vdev_raidz_math_init(void); 57 void vdev_raidz_math_fini(void); 58 const struct raidz_impl_ops *vdev_raidz_math_get_ops(void); 59 int vdev_raidz_math_generate(struct raidz_map *, struct raidz_row *); 60 int vdev_raidz_math_reconstruct(struct raidz_map *, struct raidz_row *, 61 const int *, const int *, const int); 62 int vdev_raidz_impl_set(const char *); 63 64 typedef struct vdev_raidz { 65 int vd_logical_width; 66 int vd_nparity; 67 } vdev_raidz_t; 68 69 #ifdef __cplusplus 70 } 71 #endif 72 73 #endif /* _SYS_VDEV_RAIDZ_H */ 74