version 1.1.1.2, 2010/02/27 22:31:11 |
version 1.1.1.3, 2018/05/28 20:52:58 |
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* CDDL HEADER END |
* CDDL HEADER END |
*/ |
*/ |
/* |
/* |
* Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
* Use is subject to license terms. |
* Copyright (c) 2012, 2015 by Delphix. All rights reserved. |
|
* Copyright 2013 Nexenta Systems, Inc. All rights reserved. |
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* Copyright (c) 2013 Joyent, Inc. All rights reserved. |
*/ |
*/ |
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#include <sys/zfs_context.h> |
#include <sys/zfs_context.h> |
#include <sys/spa.h> |
#include <sys/spa_impl.h> |
#include <sys/refcount.h> |
#include <sys/refcount.h> |
#include <sys/vdev_disk.h> |
#include <sys/vdev_disk.h> |
#include <sys/vdev_impl.h> |
#include <sys/vdev_impl.h> |
#include <sys/fs/zfs.h> |
#include <sys/fs/zfs.h> |
#include <sys/zio.h> |
#include <sys/zio.h> |
#include <sys/sunldi.h> |
#include <sys/sunldi.h> |
|
#include <sys/efi_partition.h> |
#include <sys/fm/fs/zfs.h> |
#include <sys/fm/fs/zfs.h> |
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/* |
/* |
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extern ldi_ident_t zfs_li; |
extern ldi_ident_t zfs_li; |
|
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typedef struct vdev_disk_buf { |
static void vdev_disk_close(vdev_t *); |
buf_t vdb_buf; |
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zio_t *vdb_io; |
typedef struct vdev_disk_ldi_cb { |
} vdev_disk_buf_t; |
list_node_t lcb_next; |
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ldi_callback_id_t lcb_id; |
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} vdev_disk_ldi_cb_t; |
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static void |
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vdev_disk_alloc(vdev_t *vd) |
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{ |
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vdev_disk_t *dvd; |
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|
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dvd = vd->vdev_tsd = kmem_zalloc(sizeof (vdev_disk_t), KM_SLEEP); |
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/* |
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* Create the LDI event callback list. |
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*/ |
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list_create(&dvd->vd_ldi_cbs, sizeof (vdev_disk_ldi_cb_t), |
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offsetof(vdev_disk_ldi_cb_t, lcb_next)); |
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} |
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static void |
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vdev_disk_free(vdev_t *vd) |
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{ |
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vdev_disk_t *dvd = vd->vdev_tsd; |
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vdev_disk_ldi_cb_t *lcb; |
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|
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if (dvd == NULL) |
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return; |
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|
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/* |
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* We have already closed the LDI handle. Clean up the LDI event |
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* callbacks and free vd->vdev_tsd. |
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*/ |
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while ((lcb = list_head(&dvd->vd_ldi_cbs)) != NULL) { |
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list_remove(&dvd->vd_ldi_cbs, lcb); |
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(void) ldi_ev_remove_callbacks(lcb->lcb_id); |
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kmem_free(lcb, sizeof (vdev_disk_ldi_cb_t)); |
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} |
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list_destroy(&dvd->vd_ldi_cbs); |
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kmem_free(dvd, sizeof (vdev_disk_t)); |
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vd->vdev_tsd = NULL; |
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} |
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/* ARGSUSED */ |
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static int |
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vdev_disk_off_notify(ldi_handle_t lh, ldi_ev_cookie_t ecookie, void *arg, |
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void *ev_data) |
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{ |
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vdev_t *vd = (vdev_t *)arg; |
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vdev_disk_t *dvd = vd->vdev_tsd; |
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/* |
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* Ignore events other than offline. |
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*/ |
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if (strcmp(ldi_ev_get_type(ecookie), LDI_EV_OFFLINE) != 0) |
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return (LDI_EV_SUCCESS); |
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/* |
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* All LDI handles must be closed for the state change to succeed, so |
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* call on vdev_disk_close() to do this. |
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* |
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* We inform vdev_disk_close that it is being called from offline |
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* notify context so it will defer cleanup of LDI event callbacks and |
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* freeing of vd->vdev_tsd to the offline finalize or a reopen. |
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*/ |
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dvd->vd_ldi_offline = B_TRUE; |
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vdev_disk_close(vd); |
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/* |
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* Now that the device is closed, request that the spa_async_thread |
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* mark the device as REMOVED and notify FMA of the removal. |
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*/ |
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zfs_post_remove(vd->vdev_spa, vd); |
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vd->vdev_remove_wanted = B_TRUE; |
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spa_async_request(vd->vdev_spa, SPA_ASYNC_REMOVE); |
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return (LDI_EV_SUCCESS); |
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} |
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/* ARGSUSED */ |
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static void |
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vdev_disk_off_finalize(ldi_handle_t lh, ldi_ev_cookie_t ecookie, |
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int ldi_result, void *arg, void *ev_data) |
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{ |
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vdev_t *vd = (vdev_t *)arg; |
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/* |
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* Ignore events other than offline. |
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*/ |
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if (strcmp(ldi_ev_get_type(ecookie), LDI_EV_OFFLINE) != 0) |
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return; |
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/* |
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* We have already closed the LDI handle in notify. |
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* Clean up the LDI event callbacks and free vd->vdev_tsd. |
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*/ |
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vdev_disk_free(vd); |
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|
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/* |
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* Request that the vdev be reopened if the offline state change was |
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* unsuccessful. |
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*/ |
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if (ldi_result != LDI_EV_SUCCESS) { |
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vd->vdev_probe_wanted = B_TRUE; |
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spa_async_request(vd->vdev_spa, SPA_ASYNC_PROBE); |
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} |
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} |
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static ldi_ev_callback_t vdev_disk_off_callb = { |
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.cb_vers = LDI_EV_CB_VERS, |
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.cb_notify = vdev_disk_off_notify, |
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.cb_finalize = vdev_disk_off_finalize |
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}; |
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/* ARGSUSED */ |
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static void |
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vdev_disk_dgrd_finalize(ldi_handle_t lh, ldi_ev_cookie_t ecookie, |
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int ldi_result, void *arg, void *ev_data) |
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{ |
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vdev_t *vd = (vdev_t *)arg; |
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|
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/* |
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* Ignore events other than degrade. |
|
*/ |
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if (strcmp(ldi_ev_get_type(ecookie), LDI_EV_DEGRADE) != 0) |
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return; |
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/* |
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* Degrade events always succeed. Mark the vdev as degraded. |
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* This status is purely informative for the user. |
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*/ |
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(void) vdev_degrade(vd->vdev_spa, vd->vdev_guid, 0); |
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} |
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static ldi_ev_callback_t vdev_disk_dgrd_callb = { |
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.cb_vers = LDI_EV_CB_VERS, |
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.cb_notify = NULL, |
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.cb_finalize = vdev_disk_dgrd_finalize |
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}; |
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static void |
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vdev_disk_hold(vdev_t *vd) |
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{ |
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ddi_devid_t devid; |
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char *minor; |
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|
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ASSERT(spa_config_held(vd->vdev_spa, SCL_STATE, RW_WRITER)); |
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/* |
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* We must have a pathname, and it must be absolute. |
|
*/ |
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if (vd->vdev_path == NULL || vd->vdev_path[0] != '/') |
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return; |
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|
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/* |
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* Only prefetch path and devid info if the device has |
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* never been opened. |
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*/ |
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if (vd->vdev_tsd != NULL) |
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return; |
|
|
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if (vd->vdev_wholedisk == -1ULL) { |
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size_t len = strlen(vd->vdev_path) + 3; |
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char *buf = kmem_alloc(len, KM_SLEEP); |
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|
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(void) snprintf(buf, len, "%ss0", vd->vdev_path); |
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(void) ldi_vp_from_name(buf, &vd->vdev_name_vp); |
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kmem_free(buf, len); |
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} |
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if (vd->vdev_name_vp == NULL) |
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(void) ldi_vp_from_name(vd->vdev_path, &vd->vdev_name_vp); |
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if (vd->vdev_devid != NULL && |
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ddi_devid_str_decode(vd->vdev_devid, &devid, &minor) == 0) { |
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(void) ldi_vp_from_devid(devid, minor, &vd->vdev_devid_vp); |
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ddi_devid_str_free(minor); |
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ddi_devid_free(devid); |
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} |
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} |
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static void |
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vdev_disk_rele(vdev_t *vd) |
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{ |
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ASSERT(spa_config_held(vd->vdev_spa, SCL_STATE, RW_WRITER)); |
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if (vd->vdev_name_vp) { |
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VN_RELE_ASYNC(vd->vdev_name_vp, |
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dsl_pool_vnrele_taskq(vd->vdev_spa->spa_dsl_pool)); |
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vd->vdev_name_vp = NULL; |
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} |
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if (vd->vdev_devid_vp) { |
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VN_RELE_ASYNC(vd->vdev_devid_vp, |
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dsl_pool_vnrele_taskq(vd->vdev_spa->spa_dsl_pool)); |
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vd->vdev_devid_vp = NULL; |
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} |
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} |
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/* |
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* We want to be loud in DEBUG kernels when DKIOCGMEDIAINFOEXT fails, or when |
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* even a fallback to DKIOCGMEDIAINFO fails. |
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*/ |
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#ifdef DEBUG |
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#define VDEV_DEBUG(...) cmn_err(CE_NOTE, __VA_ARGS__) |
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#else |
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#define VDEV_DEBUG(...) /* Nothing... */ |
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#endif |
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static int |
static int |
vdev_disk_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift) |
vdev_disk_open(vdev_t *vd, uint64_t *psize, uint64_t *max_psize, |
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uint64_t *ashift) |
{ |
{ |
spa_t *spa = vd->vdev_spa; |
spa_t *spa = vd->vdev_spa; |
vdev_disk_t *dvd; |
vdev_disk_t *dvd = vd->vdev_tsd; |
struct dk_minfo dkm; |
ldi_ev_cookie_t ecookie; |
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vdev_disk_ldi_cb_t *lcb; |
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union { |
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struct dk_minfo_ext ude; |
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struct dk_minfo ud; |
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} dks; |
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struct dk_minfo_ext *dkmext = &dks.ude; |
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struct dk_minfo *dkm = &dks.ud; |
int error; |
int error; |
dev_t dev; |
dev_t dev; |
int otyp; |
int otyp; |
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boolean_t validate_devid = B_FALSE; |
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ddi_devid_t devid; |
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uint64_t capacity = 0, blksz = 0, pbsize; |
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/* |
/* |
* We must have a pathname, and it must be absolute. |
* We must have a pathname, and it must be absolute. |
*/ |
*/ |
if (vd->vdev_path == NULL || vd->vdev_path[0] != '/') { |
if (vd->vdev_path == NULL || vd->vdev_path[0] != '/') { |
vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL; |
vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL; |
return (EINVAL); |
return (SET_ERROR(EINVAL)); |
} |
} |
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/* |
/* |
* Reopen the device if it's not currently open. Otherwise, |
* Reopen the device if it's not currently open. Otherwise, |
* just update the physical size of the device. |
* just update the physical size of the device. |
*/ |
*/ |
if (vd->vdev_tsd != NULL) { |
if (dvd != NULL) { |
ASSERT(vd->vdev_reopening); |
if (dvd->vd_ldi_offline && dvd->vd_lh == NULL) { |
dvd = vd->vdev_tsd; |
/* |
goto skip_open; |
* If we are opening a device in its offline notify |
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* context, the LDI handle was just closed. Clean |
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* up the LDI event callbacks and free vd->vdev_tsd. |
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*/ |
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vdev_disk_free(vd); |
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} else { |
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ASSERT(vd->vdev_reopening); |
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goto skip_open; |
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} |
} |
} |
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dvd = vd->vdev_tsd = kmem_zalloc(sizeof (vdev_disk_t), KM_SLEEP); |
/* |
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* Create vd->vdev_tsd. |
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*/ |
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vdev_disk_alloc(vd); |
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dvd = vd->vdev_tsd; |
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/* |
/* |
* When opening a disk device, we want to preserve the user's original |
* When opening a disk device, we want to preserve the user's original |
Line 94 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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Line 324 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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if (ddi_devid_str_decode(vd->vdev_devid, &dvd->vd_devid, |
if (ddi_devid_str_decode(vd->vdev_devid, &dvd->vd_devid, |
&dvd->vd_minor) != 0) { |
&dvd->vd_minor) != 0) { |
vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL; |
vd->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL; |
return (EINVAL); |
return (SET_ERROR(EINVAL)); |
} |
} |
} |
} |
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error = EINVAL; /* presume failure */ |
error = EINVAL; /* presume failure */ |
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if (vd->vdev_path != NULL) { |
if (vd->vdev_path != NULL) { |
ddi_devid_t devid; |
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if (vd->vdev_wholedisk == -1ULL) { |
if (vd->vdev_wholedisk == -1ULL) { |
size_t len = strlen(vd->vdev_path) + 3; |
size_t len = strlen(vd->vdev_path) + 3; |
char *buf = kmem_alloc(len, KM_SLEEP); |
char *buf = kmem_alloc(len, KM_SLEEP); |
ldi_handle_t lh; |
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(void) snprintf(buf, len, "%ss0", vd->vdev_path); |
(void) snprintf(buf, len, "%ss0", vd->vdev_path); |
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if (ldi_open_by_name(buf, spa_mode(spa), kcred, |
error = ldi_open_by_name(buf, spa_mode(spa), kcred, |
&lh, zfs_li) == 0) { |
&dvd->vd_lh, zfs_li); |
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if (error == 0) { |
spa_strfree(vd->vdev_path); |
spa_strfree(vd->vdev_path); |
vd->vdev_path = buf; |
vd->vdev_path = buf; |
vd->vdev_wholedisk = 1ULL; |
vd->vdev_wholedisk = 1ULL; |
(void) ldi_close(lh, spa_mode(spa), kcred); |
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} else { |
} else { |
kmem_free(buf, len); |
kmem_free(buf, len); |
} |
} |
} |
} |
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error = ldi_open_by_name(vd->vdev_path, spa_mode(spa), kcred, |
/* |
&dvd->vd_lh, zfs_li); |
* If we have not yet opened the device, try to open it by the |
|
* specified path. |
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*/ |
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if (error != 0) { |
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error = ldi_open_by_name(vd->vdev_path, spa_mode(spa), |
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kcred, &dvd->vd_lh, zfs_li); |
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} |
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/* |
/* |
* Compare the devid to the stored value. |
* Compare the devid to the stored value. |
Line 130 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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Line 364 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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if (error == 0 && vd->vdev_devid != NULL && |
if (error == 0 && vd->vdev_devid != NULL && |
ldi_get_devid(dvd->vd_lh, &devid) == 0) { |
ldi_get_devid(dvd->vd_lh, &devid) == 0) { |
if (ddi_devid_compare(devid, dvd->vd_devid) != 0) { |
if (ddi_devid_compare(devid, dvd->vd_devid) != 0) { |
error = EINVAL; |
error = SET_ERROR(EINVAL); |
(void) ldi_close(dvd->vd_lh, spa_mode(spa), |
(void) ldi_close(dvd->vd_lh, spa_mode(spa), |
kcred); |
kcred); |
dvd->vd_lh = NULL; |
dvd->vd_lh = NULL; |
Line 150 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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Line 384 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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* If we were unable to open by path, or the devid check fails, open by |
* If we were unable to open by path, or the devid check fails, open by |
* devid instead. |
* devid instead. |
*/ |
*/ |
if (error != 0 && vd->vdev_devid != NULL) |
if (error != 0 && vd->vdev_devid != NULL) { |
error = ldi_open_by_devid(dvd->vd_devid, dvd->vd_minor, |
error = ldi_open_by_devid(dvd->vd_devid, dvd->vd_minor, |
spa_mode(spa), kcred, &dvd->vd_lh, zfs_li); |
spa_mode(spa), kcred, &dvd->vd_lh, zfs_li); |
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} |
|
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/* |
/* |
* If all else fails, then try opening by physical path (if available) |
* If all else fails, then try opening by physical path (if available) |
Line 161 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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Line 396 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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* level vdev validation will prevent us from opening the wrong device. |
* level vdev validation will prevent us from opening the wrong device. |
*/ |
*/ |
if (error) { |
if (error) { |
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if (vd->vdev_devid != NULL) |
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validate_devid = B_TRUE; |
|
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if (vd->vdev_physpath != NULL && |
if (vd->vdev_physpath != NULL && |
(dev = ddi_pathname_to_dev_t(vd->vdev_physpath)) != NODEV) |
(dev = ddi_pathname_to_dev_t(vd->vdev_physpath)) != NODEV) |
error = ldi_open_by_dev(&dev, OTYP_BLK, spa_mode(spa), |
error = ldi_open_by_dev(&dev, OTYP_BLK, spa_mode(spa), |
Line 182 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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Line 420 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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} |
} |
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/* |
/* |
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* Now that the device has been successfully opened, update the devid |
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* if necessary. |
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*/ |
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if (validate_devid && spa_writeable(spa) && |
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ldi_get_devid(dvd->vd_lh, &devid) == 0) { |
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if (ddi_devid_compare(devid, dvd->vd_devid) != 0) { |
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char *vd_devid; |
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|
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vd_devid = ddi_devid_str_encode(devid, dvd->vd_minor); |
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zfs_dbgmsg("vdev %s: update devid from %s, " |
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"to %s", vd->vdev_path, vd->vdev_devid, vd_devid); |
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spa_strfree(vd->vdev_devid); |
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vd->vdev_devid = spa_strdup(vd_devid); |
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ddi_devid_str_free(vd_devid); |
|
} |
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ddi_devid_free(devid); |
|
} |
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|
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/* |
* Once a device is opened, verify that the physical device path (if |
* Once a device is opened, verify that the physical device path (if |
* available) is up to date. |
* available) is up to date. |
*/ |
*/ |
Line 206 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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Line 463 vdev_disk_open(vdev_t *vd, uint64_t *psi |
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kmem_free(physpath, MAXPATHLEN); |
kmem_free(physpath, MAXPATHLEN); |
} |
} |
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|
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/* |
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* Register callbacks for the LDI offline event. |
|
*/ |
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if (ldi_ev_get_cookie(dvd->vd_lh, LDI_EV_OFFLINE, &ecookie) == |
|
LDI_EV_SUCCESS) { |
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lcb = kmem_zalloc(sizeof (vdev_disk_ldi_cb_t), KM_SLEEP); |
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list_insert_tail(&dvd->vd_ldi_cbs, lcb); |
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(void) ldi_ev_register_callbacks(dvd->vd_lh, ecookie, |
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&vdev_disk_off_callb, (void *) vd, &lcb->lcb_id); |
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} |
|
|
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/* |
|
* Register callbacks for the LDI degrade event. |
|
*/ |
|
if (ldi_ev_get_cookie(dvd->vd_lh, LDI_EV_DEGRADE, &ecookie) == |
|
LDI_EV_SUCCESS) { |
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lcb = kmem_zalloc(sizeof (vdev_disk_ldi_cb_t), KM_SLEEP); |
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list_insert_tail(&dvd->vd_ldi_cbs, lcb); |
|
(void) ldi_ev_register_callbacks(dvd->vd_lh, ecookie, |
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&vdev_disk_dgrd_callb, (void *) vd, &lcb->lcb_id); |
|
} |
skip_open: |
skip_open: |
/* |
/* |
* Determine the actual size of the device. |
* Determine the actual size of the device. |
*/ |
*/ |
if (ldi_get_size(dvd->vd_lh, psize) != 0) { |
if (ldi_get_size(dvd->vd_lh, psize) != 0) { |
vd->vdev_stat.vs_aux = VDEV_AUX_OPEN_FAILED; |
vd->vdev_stat.vs_aux = VDEV_AUX_OPEN_FAILED; |
return (EINVAL); |
return (SET_ERROR(EINVAL)); |
} |
} |
|
|
|
*max_psize = *psize; |
|
|
/* |
/* |
* If we own the whole disk, try to enable disk write caching. |
* Determine the device's minimum transfer size. |
* We ignore errors because it's OK if we can't do it. |
* If the ioctl isn't supported, assume DEV_BSIZE. |
*/ |
*/ |
|
if ((error = ldi_ioctl(dvd->vd_lh, DKIOCGMEDIAINFOEXT, |
|
(intptr_t)dkmext, FKIOCTL, kcred, NULL)) == 0) { |
|
capacity = dkmext->dki_capacity - 1; |
|
blksz = dkmext->dki_lbsize; |
|
pbsize = dkmext->dki_pbsize; |
|
} else if ((error = ldi_ioctl(dvd->vd_lh, DKIOCGMEDIAINFO, |
|
(intptr_t)dkm, FKIOCTL, kcred, NULL)) == 0) { |
|
VDEV_DEBUG( |
|
"vdev_disk_open(\"%s\"): fallback to DKIOCGMEDIAINFO\n", |
|
vd->vdev_path); |
|
capacity = dkm->dki_capacity - 1; |
|
blksz = dkm->dki_lbsize; |
|
pbsize = blksz; |
|
} else { |
|
VDEV_DEBUG("vdev_disk_open(\"%s\"): " |
|
"both DKIOCGMEDIAINFO{,EXT} calls failed, %d\n", |
|
vd->vdev_path, error); |
|
pbsize = DEV_BSIZE; |
|
} |
|
|
|
*ashift = highbit64(MAX(pbsize, SPA_MINBLOCKSIZE)) - 1; |
|
|
if (vd->vdev_wholedisk == 1) { |
if (vd->vdev_wholedisk == 1) { |
int wce = 1; |
int wce = 1; |
|
|
|
if (error == 0) { |
|
/* |
|
* If we have the capability to expand, we'd have |
|
* found out via success from DKIOCGMEDIAINFO{,EXT}. |
|
* Adjust max_psize upward accordingly since we know |
|
* we own the whole disk now. |
|
*/ |
|
*max_psize = capacity * blksz; |
|
} |
|
|
|
/* |
|
* Since we own the whole disk, try to enable disk write |
|
* caching. We ignore errors because it's OK if we can't do it. |
|
*/ |
(void) ldi_ioctl(dvd->vd_lh, DKIOCSETWCE, (intptr_t)&wce, |
(void) ldi_ioctl(dvd->vd_lh, DKIOCSETWCE, (intptr_t)&wce, |
FKIOCTL, kcred, NULL); |
FKIOCTL, kcred, NULL); |
} |
} |
|
|
/* |
/* |
* Determine the device's minimum transfer size. |
|
* If the ioctl isn't supported, assume DEV_BSIZE. |
|
*/ |
|
if (ldi_ioctl(dvd->vd_lh, DKIOCGMEDIAINFO, (intptr_t)&dkm, |
|
FKIOCTL, kcred, NULL) != 0) |
|
dkm.dki_lbsize = DEV_BSIZE; |
|
|
|
*ashift = highbit(MAX(dkm.dki_lbsize, SPA_MINBLOCKSIZE)) - 1; |
|
|
|
/* |
|
* Clear the nowritecache bit, so that on a vdev_reopen() we will |
* Clear the nowritecache bit, so that on a vdev_reopen() we will |
* try again. |
* try again. |
*/ |
*/ |
Line 252 vdev_disk_close(vdev_t *vd) |
|
Line 559 vdev_disk_close(vdev_t *vd) |
|
if (vd->vdev_reopening || dvd == NULL) |
if (vd->vdev_reopening || dvd == NULL) |
return; |
return; |
|
|
if (dvd->vd_minor != NULL) |
if (dvd->vd_minor != NULL) { |
ddi_devid_str_free(dvd->vd_minor); |
ddi_devid_str_free(dvd->vd_minor); |
|
dvd->vd_minor = NULL; |
|
} |
|
|
if (dvd->vd_devid != NULL) |
if (dvd->vd_devid != NULL) { |
ddi_devid_free(dvd->vd_devid); |
ddi_devid_free(dvd->vd_devid); |
|
dvd->vd_devid = NULL; |
|
} |
|
|
if (dvd->vd_lh != NULL) |
if (dvd->vd_lh != NULL) { |
(void) ldi_close(dvd->vd_lh, spa_mode(vd->vdev_spa), kcred); |
(void) ldi_close(dvd->vd_lh, spa_mode(vd->vdev_spa), kcred); |
|
dvd->vd_lh = NULL; |
|
} |
|
|
kmem_free(dvd, sizeof (vdev_disk_t)); |
vd->vdev_delayed_close = B_FALSE; |
vd->vdev_tsd = NULL; |
/* |
|
* If we closed the LDI handle due to an offline notify from LDI, |
|
* don't free vd->vdev_tsd or unregister the callbacks here; |
|
* the offline finalize callback or a reopen will take care of it. |
|
*/ |
|
if (dvd->vd_ldi_offline) |
|
return; |
|
|
|
vdev_disk_free(vd); |
} |
} |
|
|
int |
int |
vdev_disk_physio(ldi_handle_t vd_lh, caddr_t data, size_t size, |
vdev_disk_physio(vdev_t *vd, caddr_t data, |
uint64_t offset, int flags) |
size_t size, uint64_t offset, int flags, boolean_t isdump) |
|
{ |
|
vdev_disk_t *dvd = vd->vdev_tsd; |
|
|
|
/* |
|
* If the vdev is closed, it's likely in the REMOVED or FAULTED state. |
|
* Nothing to be done here but return failure. |
|
*/ |
|
if (dvd == NULL || (dvd->vd_ldi_offline && dvd->vd_lh == NULL)) |
|
return (EIO); |
|
|
|
ASSERT(vd->vdev_ops == &vdev_disk_ops); |
|
|
|
/* |
|
* If in the context of an active crash dump, use the ldi_dump(9F) |
|
* call instead of ldi_strategy(9F) as usual. |
|
*/ |
|
if (isdump) { |
|
ASSERT3P(dvd, !=, NULL); |
|
return (ldi_dump(dvd->vd_lh, data, lbtodb(offset), |
|
lbtodb(size))); |
|
} |
|
|
|
return (vdev_disk_ldi_physio(dvd->vd_lh, data, size, offset, flags)); |
|
} |
|
|
|
int |
|
vdev_disk_ldi_physio(ldi_handle_t vd_lh, caddr_t data, |
|
size_t size, uint64_t offset, int flags) |
{ |
{ |
buf_t *bp; |
buf_t *bp; |
int error = 0; |
int error = 0; |
|
|
if (vd_lh == NULL) |
if (vd_lh == NULL) |
return (EINVAL); |
return (SET_ERROR(EINVAL)); |
|
|
ASSERT(flags & B_READ || flags & B_WRITE); |
ASSERT(flags & B_READ || flags & B_WRITE); |
|
|
Line 287 vdev_disk_physio(ldi_handle_t vd_lh, cad |
|
Line 636 vdev_disk_physio(ldi_handle_t vd_lh, cad |
|
error = ldi_strategy(vd_lh, bp); |
error = ldi_strategy(vd_lh, bp); |
ASSERT(error == 0); |
ASSERT(error == 0); |
if ((error = biowait(bp)) == 0 && bp->b_resid != 0) |
if ((error = biowait(bp)) == 0 && bp->b_resid != 0) |
error = EIO; |
error = SET_ERROR(EIO); |
freerbuf(bp); |
freerbuf(bp); |
|
|
return (error); |
return (error); |
Line 296 vdev_disk_physio(ldi_handle_t vd_lh, cad |
|
Line 645 vdev_disk_physio(ldi_handle_t vd_lh, cad |
|
static void |
static void |
vdev_disk_io_intr(buf_t *bp) |
vdev_disk_io_intr(buf_t *bp) |
{ |
{ |
vdev_disk_buf_t *vdb = (vdev_disk_buf_t *)bp; |
vdev_buf_t *vb = (vdev_buf_t *)bp; |
zio_t *zio = vdb->vdb_io; |
zio_t *zio = vb->vb_io; |
|
|
/* |
/* |
* The rest of the zio stack only deals with EIO, ECKSUM, and ENXIO. |
* The rest of the zio stack only deals with EIO, ECKSUM, and ENXIO. |
* Rather than teach the rest of the stack about other error |
* Rather than teach the rest of the stack about other error |
* possibilities (EFAULT, etc), we normalize the error value here. |
* possibilities (EFAULT, etc), we normalize the error value here. |
*/ |
*/ |
zio->io_error = (geterror(bp) != 0 ? EIO : 0); |
zio->io_error = (geterror(bp) != 0 ? SET_ERROR(EIO) : 0); |
|
|
if (zio->io_error == 0 && bp->b_resid != 0) |
if (zio->io_error == 0 && bp->b_resid != 0) |
zio->io_error = EIO; |
zio->io_error = SET_ERROR(EIO); |
|
|
kmem_free(vdb, sizeof (vdev_disk_buf_t)); |
kmem_free(vb, sizeof (vdev_buf_t)); |
|
|
zio_interrupt(zio); |
zio_delay_interrupt(zio); |
} |
} |
|
|
static void |
static void |
Line 335 vdev_disk_ioctl_done(void *zio_arg, int |
|
Line 684 vdev_disk_ioctl_done(void *zio_arg, int |
|
zio_interrupt(zio); |
zio_interrupt(zio); |
} |
} |
|
|
static int |
static void |
vdev_disk_io_start(zio_t *zio) |
vdev_disk_io_start(zio_t *zio) |
{ |
{ |
vdev_t *vd = zio->io_vd; |
vdev_t *vd = zio->io_vd; |
vdev_disk_t *dvd = vd->vdev_tsd; |
vdev_disk_t *dvd = vd->vdev_tsd; |
vdev_disk_buf_t *vdb; |
vdev_buf_t *vb; |
struct dk_callback *dkc; |
struct dk_callback *dkc; |
buf_t *bp; |
buf_t *bp; |
int error; |
int error; |
|
|
|
/* |
|
* If the vdev is closed, it's likely in the REMOVED or FAULTED state. |
|
* Nothing to be done here but return failure. |
|
*/ |
|
if (dvd == NULL || (dvd->vd_ldi_offline && dvd->vd_lh == NULL)) { |
|
zio->io_error = SET_ERROR(ENXIO); |
|
zio_interrupt(zio); |
|
return; |
|
} |
|
|
if (zio->io_type == ZIO_TYPE_IOCTL) { |
if (zio->io_type == ZIO_TYPE_IOCTL) { |
/* XXPOLICY */ |
/* XXPOLICY */ |
if (!vdev_readable(vd)) { |
if (!vdev_readable(vd)) { |
zio->io_error = ENXIO; |
zio->io_error = SET_ERROR(ENXIO); |
return (ZIO_PIPELINE_CONTINUE); |
zio_interrupt(zio); |
|
return; |
} |
} |
|
|
switch (zio->io_cmd) { |
switch (zio->io_cmd) { |
Line 360 vdev_disk_io_start(zio_t *zio) |
|
Line 720 vdev_disk_io_start(zio_t *zio) |
|
break; |
break; |
|
|
if (vd->vdev_nowritecache) { |
if (vd->vdev_nowritecache) { |
zio->io_error = ENOTSUP; |
zio->io_error = SET_ERROR(ENOTSUP); |
break; |
break; |
} |
} |
|
|
Line 380 vdev_disk_io_start(zio_t *zio) |
|
Line 740 vdev_disk_io_start(zio_t *zio) |
|
* and will call vdev_disk_ioctl_done() |
* and will call vdev_disk_ioctl_done() |
* upon completion. |
* upon completion. |
*/ |
*/ |
return (ZIO_PIPELINE_STOP); |
return; |
} |
} |
|
|
if (error == ENOTSUP || error == ENOTTY) { |
if (error == ENOTSUP || error == ENOTTY) { |
Line 398 vdev_disk_io_start(zio_t *zio) |
|
Line 758 vdev_disk_io_start(zio_t *zio) |
|
break; |
break; |
|
|
default: |
default: |
zio->io_error = ENOTSUP; |
zio->io_error = SET_ERROR(ENOTSUP); |
} |
} |
|
|
return (ZIO_PIPELINE_CONTINUE); |
zio_execute(zio); |
|
return; |
} |
} |
|
|
vdb = kmem_alloc(sizeof (vdev_disk_buf_t), KM_SLEEP); |
ASSERT(zio->io_type == ZIO_TYPE_READ || zio->io_type == ZIO_TYPE_WRITE); |
|
zio->io_target_timestamp = zio_handle_io_delay(zio); |
|
|
|
vb = kmem_alloc(sizeof (vdev_buf_t), KM_SLEEP); |
|
|
vdb->vdb_io = zio; |
vb->vb_io = zio; |
bp = &vdb->vdb_buf; |
bp = &vb->vb_buf; |
|
|
bioinit(bp); |
bioinit(bp); |
bp->b_flags = B_BUSY | B_NOCACHE | |
bp->b_flags = B_BUSY | B_NOCACHE | |
Line 422 vdev_disk_io_start(zio_t *zio) |
|
Line 786 vdev_disk_io_start(zio_t *zio) |
|
|
|
/* ldi_strategy() will return non-zero only on programming errors */ |
/* ldi_strategy() will return non-zero only on programming errors */ |
VERIFY(ldi_strategy(dvd->vd_lh, bp) == 0); |
VERIFY(ldi_strategy(dvd->vd_lh, bp) == 0); |
|
|
return (ZIO_PIPELINE_STOP); |
|
} |
} |
|
|
static void |
static void |
Line 452 vdev_disk_io_done(zio_t *zio) |
|
Line 814 vdev_disk_io_done(zio_t *zio) |
|
zfs_post_remove(zio->io_spa, vd); |
zfs_post_remove(zio->io_spa, vd); |
vd->vdev_remove_wanted = B_TRUE; |
vd->vdev_remove_wanted = B_TRUE; |
spa_async_request(zio->io_spa, SPA_ASYNC_REMOVE); |
spa_async_request(zio->io_spa, SPA_ASYNC_REMOVE); |
|
} else if (!vd->vdev_delayed_close) { |
|
vd->vdev_delayed_close = B_TRUE; |
} |
} |
} |
} |
} |
} |
Line 463 vdev_ops_t vdev_disk_ops = { |
|
Line 827 vdev_ops_t vdev_disk_ops = { |
|
vdev_disk_io_start, |
vdev_disk_io_start, |
vdev_disk_io_done, |
vdev_disk_io_done, |
NULL, |
NULL, |
|
vdev_disk_hold, |
|
vdev_disk_rele, |
VDEV_TYPE_DISK, /* name of this vdev type */ |
VDEV_TYPE_DISK, /* name of this vdev type */ |
B_TRUE /* leaf vdev */ |
B_TRUE /* leaf vdev */ |
}; |
}; |
Line 499 vdev_disk_read_rootlabel(char *devpath, |
|
Line 865 vdev_disk_read_rootlabel(char *devpath, |
|
|
|
if (ldi_get_size(vd_lh, &s)) { |
if (ldi_get_size(vd_lh, &s)) { |
(void) ldi_close(vd_lh, FREAD, kcred); |
(void) ldi_close(vd_lh, FREAD, kcred); |
return (EIO); |
return (SET_ERROR(EIO)); |
} |
} |
|
|
size = P2ALIGN_TYPED(s, sizeof (vdev_label_t), uint64_t); |
size = P2ALIGN_TYPED(s, sizeof (vdev_label_t), uint64_t); |
Line 511 vdev_disk_read_rootlabel(char *devpath, |
|
Line 877 vdev_disk_read_rootlabel(char *devpath, |
|
|
|
/* read vdev label */ |
/* read vdev label */ |
offset = vdev_label_offset(size, l, 0); |
offset = vdev_label_offset(size, l, 0); |
if (vdev_disk_physio(vd_lh, (caddr_t)label, |
if (vdev_disk_ldi_physio(vd_lh, (caddr_t)label, |
VDEV_SKIP_SIZE + VDEV_PHYS_SIZE, offset, B_READ) != 0) |
VDEV_SKIP_SIZE + VDEV_PHYS_SIZE, offset, B_READ) != 0) |
continue; |
continue; |
|
|
Line 541 vdev_disk_read_rootlabel(char *devpath, |
|
Line 907 vdev_disk_read_rootlabel(char *devpath, |
|
kmem_free(label, sizeof (vdev_label_t)); |
kmem_free(label, sizeof (vdev_label_t)); |
(void) ldi_close(vd_lh, FREAD, kcred); |
(void) ldi_close(vd_lh, FREAD, kcred); |
if (*config == NULL) |
if (*config == NULL) |
error = EIDRM; |
error = SET_ERROR(EIDRM); |
|
|
return (error); |
return (error); |
} |
} |