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 <neskovic@compeng.uni-frankfurt.de>. 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_col; 36 struct raidz_row; 37 struct raidz_map; 38 #if !defined(_KERNEL) 39 struct kernel_param {}; 40 #endif 41 42 /* 43 * vdev_raidz interface 44 */ 45 struct raidz_map *vdev_raidz_map_alloc(struct zio *, uint64_t, uint64_t, 46 uint64_t); 47 void vdev_raidz_map_free(struct raidz_map *); 48 void vdev_raidz_generate_parity_row(struct raidz_map *, struct raidz_row *); 49 void vdev_raidz_generate_parity(struct raidz_map *); 50 void vdev_raidz_reconstruct(struct raidz_map *, const int *, int); 51 void vdev_raidz_child_done(zio_t *); 52 void vdev_raidz_io_done(zio_t *); 53 void vdev_raidz_checksum_error(zio_t *, struct raidz_col *, abd_t *); 54 55 extern const zio_vsd_ops_t vdev_raidz_vsd_ops; 56 57 /* 58 * vdev_raidz_math interface 59 */ 60 void vdev_raidz_math_init(void); 61 void vdev_raidz_math_fini(void); 62 const struct raidz_impl_ops *vdev_raidz_math_get_ops(void); 63 int vdev_raidz_math_generate(struct raidz_map *, struct raidz_row *); 64 int vdev_raidz_math_reconstruct(struct raidz_map *, struct raidz_row *, 65 const int *, const int *, const int); 66 int vdev_raidz_impl_set(const char *); 67 68 typedef struct vdev_raidz { 69 int vd_logical_width; 70 int vd_nparity; 71 } vdev_raidz_t; 72 73 #ifdef __cplusplus 74 } 75 #endif 76 77 #endif /* _SYS_VDEV_RAIDZ_H */ 78