1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5*ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6*ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 22*ea8dc4b6Seschrock * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 27fa9e4066Sahrens 28fa9e4066Sahrens #include <sys/zfs_context.h> 29fa9e4066Sahrens #include <sys/spa.h> 30fa9e4066Sahrens #include <sys/vdev_impl.h> 31fa9e4066Sahrens #include <sys/zio.h> 32fa9e4066Sahrens #include <sys/fs/zfs.h> 33fa9e4066Sahrens 34fa9e4066Sahrens /* 35fa9e4066Sahrens * Virtual device vector for the pool's root vdev. 36fa9e4066Sahrens */ 37fa9e4066Sahrens 38fa9e4066Sahrens static int 39fa9e4066Sahrens vdev_root_open(vdev_t *vd, uint64_t *asize, uint64_t *ashift) 40fa9e4066Sahrens { 41fa9e4066Sahrens vdev_t *cvd; 42fa9e4066Sahrens int c, error; 43fa9e4066Sahrens int lasterror = 0; 44fa9e4066Sahrens 45fa9e4066Sahrens if (vd->vdev_children == 0) { 46fa9e4066Sahrens vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL; 47fa9e4066Sahrens return (EINVAL); 48fa9e4066Sahrens } 49fa9e4066Sahrens 50fa9e4066Sahrens for (c = 0; c < vd->vdev_children; c++) { 51fa9e4066Sahrens cvd = vd->vdev_child[c]; 52fa9e4066Sahrens 53fa9e4066Sahrens if ((error = vdev_open(cvd)) != 0) { 54fa9e4066Sahrens lasterror = error; 55fa9e4066Sahrens continue; 56fa9e4066Sahrens } 57fa9e4066Sahrens 58fa9e4066Sahrens *asize += cvd->vdev_asize; 59fa9e4066Sahrens *ashift = MAX(*ashift, cvd->vdev_ashift); 60fa9e4066Sahrens } 61fa9e4066Sahrens 62fa9e4066Sahrens if (lasterror) 63fa9e4066Sahrens vd->vdev_stat.vs_aux = VDEV_AUX_NO_REPLICAS; 64fa9e4066Sahrens 65fa9e4066Sahrens return (lasterror); 66fa9e4066Sahrens } 67fa9e4066Sahrens 68fa9e4066Sahrens static void 69fa9e4066Sahrens vdev_root_close(vdev_t *vd) 70fa9e4066Sahrens { 71fa9e4066Sahrens int c; 72fa9e4066Sahrens 73fa9e4066Sahrens for (c = 0; c < vd->vdev_children; c++) 74fa9e4066Sahrens vdev_close(vd->vdev_child[c]); 75fa9e4066Sahrens } 76fa9e4066Sahrens 77fa9e4066Sahrens static void 78fa9e4066Sahrens vdev_root_state_change(vdev_t *vd, int faulted, int degraded) 79fa9e4066Sahrens { 80fa9e4066Sahrens if (faulted > 0) 81*ea8dc4b6Seschrock vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, 82*ea8dc4b6Seschrock VDEV_AUX_NO_REPLICAS); 83fa9e4066Sahrens else if (degraded != 0) 84*ea8dc4b6Seschrock vdev_set_state(vd, B_FALSE, VDEV_STATE_DEGRADED, VDEV_AUX_NONE); 85fa9e4066Sahrens else 86*ea8dc4b6Seschrock vdev_set_state(vd, B_FALSE, VDEV_STATE_HEALTHY, VDEV_AUX_NONE); 87fa9e4066Sahrens } 88fa9e4066Sahrens 89fa9e4066Sahrens vdev_ops_t vdev_root_ops = { 90fa9e4066Sahrens vdev_root_open, 91fa9e4066Sahrens vdev_root_close, 92fa9e4066Sahrens vdev_default_asize, 93fa9e4066Sahrens NULL, /* io_start - not applicable to the root */ 94fa9e4066Sahrens NULL, /* io_done - not applicable to the root */ 95fa9e4066Sahrens vdev_root_state_change, 96fa9e4066Sahrens VDEV_TYPE_ROOT, /* name of this vdev type */ 97fa9e4066Sahrens B_FALSE /* not a leaf vdev */ 98fa9e4066Sahrens }; 99