024932aae9
Combined with earlier nstart/nend removal it allows to remove several locks from request path of GEOM and few other places. It would be cool if we had more SMP-friendly statistics, but this helps too. Sponsored by: iXsystems, Inc.
623 lines
16 KiB
C
623 lines
16 KiB
C
/*-
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* Copyright (c) 2017, 2018 The FreeBSD Foundation
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* All rights reserved.
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* Copyright (c) 2018, 2019 Intel Corporation
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*
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* This software was developed by Konstantin Belousov <kib@FreeBSD.org>
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_acpi.h"
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#include "opt_ddb.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bio.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/devicestat.h>
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#include <sys/disk.h>
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#include <sys/efi.h>
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#include <sys/kernel.h>
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#include <sys/kthread.h>
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#include <sys/limits.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/rwlock.h>
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#include <sys/sglist.h>
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#include <sys/uio.h>
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#include <sys/uuid.h>
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#include <geom/geom.h>
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#include <geom/geom_int.h>
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#include <machine/vmparam.h>
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#include <vm/vm.h>
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#include <vm/vm_object.h>
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#include <vm/vm_page.h>
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#include <vm/vm_pager.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/accommon.h>
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#include <contrib/dev/acpica/include/acuuid.h>
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#include <dev/acpica/acpivar.h>
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#include <dev/nvdimm/nvdimm_var.h>
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#define UUID_INITIALIZER_VOLATILE_MEMORY \
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{0x7305944f,0xfdda,0x44e3,0xb1,0x6c,{0x3f,0x22,0xd2,0x52,0xe5,0xd0}}
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#define UUID_INITIALIZER_PERSISTENT_MEMORY \
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{0x66f0d379,0xb4f3,0x4074,0xac,0x43,{0x0d,0x33,0x18,0xb7,0x8c,0xdb}}
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#define UUID_INITIALIZER_CONTROL_REGION \
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{0x92f701f6,0x13b4,0x405d,0x91,0x0b,{0x29,0x93,0x67,0xe8,0x23,0x4c}}
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#define UUID_INITIALIZER_DATA_REGION \
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{0x91af0530,0x5d86,0x470e,0xa6,0xb0,{0x0a,0x2d,0xb9,0x40,0x82,0x49}}
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#define UUID_INITIALIZER_VOLATILE_VIRTUAL_DISK \
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{0x77ab535a,0x45fc,0x624b,0x55,0x60,{0xf7,0xb2,0x81,0xd1,0xf9,0x6e}}
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#define UUID_INITIALIZER_VOLATILE_VIRTUAL_CD \
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{0x3d5abd30,0x4175,0x87ce,0x6d,0x64,{0xd2,0xad,0xe5,0x23,0xc4,0xbb}}
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#define UUID_INITIALIZER_PERSISTENT_VIRTUAL_DISK \
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{0x5cea02c9,0x4d07,0x69d3,0x26,0x9f,{0x44,0x96,0xfb,0xe0,0x96,0xf9}}
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#define UUID_INITIALIZER_PERSISTENT_VIRTUAL_CD \
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{0x08018188,0x42cd,0xbb48,0x10,0x0f,{0x53,0x87,0xd5,0x3d,0xed,0x3d}}
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static struct nvdimm_SPA_uuid_list_elm {
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const char *u_name;
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struct uuid u_id;
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const bool u_usr_acc;
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} nvdimm_SPA_uuid_list[] = {
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[SPA_TYPE_VOLATILE_MEMORY] = {
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.u_name = "VOLA MEM ",
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.u_id = UUID_INITIALIZER_VOLATILE_MEMORY,
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.u_usr_acc = true,
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},
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[SPA_TYPE_PERSISTENT_MEMORY] = {
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.u_name = "PERS MEM",
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.u_id = UUID_INITIALIZER_PERSISTENT_MEMORY,
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.u_usr_acc = true,
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},
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[SPA_TYPE_CONTROL_REGION] = {
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.u_name = "CTRL RG ",
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.u_id = UUID_INITIALIZER_CONTROL_REGION,
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.u_usr_acc = false,
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},
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[SPA_TYPE_DATA_REGION] = {
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.u_name = "DATA RG ",
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.u_id = UUID_INITIALIZER_DATA_REGION,
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.u_usr_acc = true,
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},
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[SPA_TYPE_VOLATILE_VIRTUAL_DISK] = {
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.u_name = "VIRT DSK",
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.u_id = UUID_INITIALIZER_VOLATILE_VIRTUAL_DISK,
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.u_usr_acc = true,
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},
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[SPA_TYPE_VOLATILE_VIRTUAL_CD] = {
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.u_name = "VIRT CD ",
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.u_id = UUID_INITIALIZER_VOLATILE_VIRTUAL_CD,
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.u_usr_acc = true,
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},
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[SPA_TYPE_PERSISTENT_VIRTUAL_DISK] = {
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.u_name = "PV DSK ",
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.u_id = UUID_INITIALIZER_PERSISTENT_VIRTUAL_DISK,
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.u_usr_acc = true,
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},
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[SPA_TYPE_PERSISTENT_VIRTUAL_CD] = {
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.u_name = "PV CD ",
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.u_id = UUID_INITIALIZER_PERSISTENT_VIRTUAL_CD,
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.u_usr_acc = true,
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},
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};
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enum SPA_mapping_type
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nvdimm_spa_type_from_name(const char *name)
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{
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int j;
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for (j = 0; j < nitems(nvdimm_SPA_uuid_list); j++) {
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if (strcmp(name, nvdimm_SPA_uuid_list[j].u_name) != 0)
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continue;
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return (j);
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}
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return (SPA_TYPE_UNKNOWN);
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}
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enum SPA_mapping_type
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nvdimm_spa_type_from_uuid(struct uuid *uuid)
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{
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int j;
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for (j = 0; j < nitems(nvdimm_SPA_uuid_list); j++) {
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if (uuidcmp(uuid, &nvdimm_SPA_uuid_list[j].u_id) != 0)
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continue;
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return (j);
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}
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return (SPA_TYPE_UNKNOWN);
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}
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bool
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nvdimm_spa_type_user_accessible(enum SPA_mapping_type spa_type)
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{
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if ((int)spa_type < 0 || spa_type >= nitems(nvdimm_SPA_uuid_list))
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return (false);
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return (nvdimm_SPA_uuid_list[spa_type].u_usr_acc);
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}
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static vm_memattr_t
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nvdimm_spa_memattr(uint64_t efi_mem_flags)
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{
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vm_memattr_t mode;
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if ((efi_mem_flags & EFI_MD_ATTR_WB) != 0)
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mode = VM_MEMATTR_WRITE_BACK;
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else if ((efi_mem_flags & EFI_MD_ATTR_WT) != 0)
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mode = VM_MEMATTR_WRITE_THROUGH;
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else if ((efi_mem_flags & EFI_MD_ATTR_WC) != 0)
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mode = VM_MEMATTR_WRITE_COMBINING;
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else if ((efi_mem_flags & EFI_MD_ATTR_WP) != 0)
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mode = VM_MEMATTR_WRITE_PROTECTED;
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else if ((efi_mem_flags & EFI_MD_ATTR_UC) != 0)
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mode = VM_MEMATTR_UNCACHEABLE;
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else {
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if (bootverbose)
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printf("SPA mapping attr %#lx unsupported\n",
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efi_mem_flags);
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mode = VM_MEMATTR_UNCACHEABLE;
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}
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return (mode);
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}
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static int
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nvdimm_spa_uio(struct nvdimm_spa_dev *dev, struct uio *uio)
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{
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struct vm_page m, *ma;
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off_t off;
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vm_memattr_t mattr;
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int error, n;
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error = 0;
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if (dev->spa_kva == NULL) {
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mattr = dev->spa_memattr;
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bzero(&m, sizeof(m));
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vm_page_initfake(&m, 0, mattr);
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ma = &m;
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while (uio->uio_resid > 0) {
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if (uio->uio_offset >= dev->spa_len)
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break;
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off = dev->spa_phys_base + uio->uio_offset;
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vm_page_updatefake(&m, trunc_page(off), mattr);
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n = PAGE_SIZE;
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if (n > uio->uio_resid)
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n = uio->uio_resid;
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error = uiomove_fromphys(&ma, off & PAGE_MASK, n, uio);
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if (error != 0)
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break;
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}
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} else {
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while (uio->uio_resid > 0) {
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if (uio->uio_offset >= dev->spa_len)
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break;
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n = INT_MAX;
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if (n > uio->uio_resid)
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n = uio->uio_resid;
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if (uio->uio_offset + n > dev->spa_len)
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n = dev->spa_len - uio->uio_offset;
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error = uiomove((char *)dev->spa_kva + uio->uio_offset,
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n, uio);
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if (error != 0)
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break;
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}
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}
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return (error);
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}
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static int
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nvdimm_spa_rw(struct cdev *dev, struct uio *uio, int ioflag)
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{
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return (nvdimm_spa_uio(dev->si_drv1, uio));
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}
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static int
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nvdimm_spa_ioctl(struct cdev *cdev, u_long cmd, caddr_t data, int fflag,
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struct thread *td)
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{
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struct nvdimm_spa_dev *dev;
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int error;
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dev = cdev->si_drv1;
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error = 0;
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switch (cmd) {
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case DIOCGSECTORSIZE:
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*(u_int *)data = DEV_BSIZE;
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break;
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case DIOCGMEDIASIZE:
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*(off_t *)data = dev->spa_len;
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break;
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default:
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error = ENOTTY;
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break;
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}
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return (error);
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}
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static int
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nvdimm_spa_mmap_single(struct cdev *cdev, vm_ooffset_t *offset, vm_size_t size,
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vm_object_t *objp, int nprot)
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{
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struct nvdimm_spa_dev *dev;
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dev = cdev->si_drv1;
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if (dev->spa_obj == NULL)
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return (ENXIO);
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if (*offset >= dev->spa_len || *offset + size < *offset ||
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*offset + size > dev->spa_len)
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return (EINVAL);
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vm_object_reference(dev->spa_obj);
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*objp = dev->spa_obj;
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return (0);
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}
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static struct cdevsw spa_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = D_DISK,
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.d_name = "nvdimm_spa",
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.d_read = nvdimm_spa_rw,
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.d_write = nvdimm_spa_rw,
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.d_ioctl = nvdimm_spa_ioctl,
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.d_mmap_single = nvdimm_spa_mmap_single,
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};
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static void
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nvdimm_spa_g_all_unmapped(struct nvdimm_spa_dev *dev, struct bio *bp, int rw)
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{
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struct vm_page maa[bp->bio_ma_n];
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vm_page_t ma[bp->bio_ma_n];
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vm_memattr_t mattr;
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int i;
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mattr = dev->spa_memattr;
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for (i = 0; i < nitems(ma); i++) {
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bzero(&maa[i], sizeof(maa[i]));
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vm_page_initfake(&maa[i], dev->spa_phys_base +
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trunc_page(bp->bio_offset) + PAGE_SIZE * i, mattr);
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ma[i] = &maa[i];
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}
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if (rw == BIO_READ)
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pmap_copy_pages(ma, bp->bio_offset & PAGE_MASK, bp->bio_ma,
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bp->bio_ma_offset, bp->bio_length);
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else
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pmap_copy_pages(bp->bio_ma, bp->bio_ma_offset, ma,
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bp->bio_offset & PAGE_MASK, bp->bio_length);
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}
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static void
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nvdimm_spa_g_thread(void *arg)
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{
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struct g_spa *sc;
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struct bio *bp;
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struct uio auio;
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struct iovec aiovec;
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int error;
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sc = arg;
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for (;;) {
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mtx_lock(&sc->spa_g_mtx);
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for (;;) {
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bp = bioq_takefirst(&sc->spa_g_queue);
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if (bp != NULL)
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break;
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msleep(&sc->spa_g_queue, &sc->spa_g_mtx, PRIBIO,
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"spa_g", 0);
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if (!sc->spa_g_proc_run) {
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sc->spa_g_proc_exiting = true;
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wakeup(&sc->spa_g_queue);
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mtx_unlock(&sc->spa_g_mtx);
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kproc_exit(0);
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}
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continue;
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}
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mtx_unlock(&sc->spa_g_mtx);
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if (bp->bio_cmd != BIO_READ && bp->bio_cmd != BIO_WRITE &&
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bp->bio_cmd != BIO_FLUSH) {
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error = EOPNOTSUPP;
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goto completed;
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}
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error = 0;
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if (bp->bio_cmd == BIO_FLUSH) {
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if (sc->dev->spa_kva != NULL) {
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pmap_large_map_wb(sc->dev->spa_kva,
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sc->dev->spa_len);
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} else {
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pmap_flush_cache_phys_range(
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(vm_paddr_t)sc->dev->spa_phys_base,
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(vm_paddr_t)sc->dev->spa_phys_base +
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sc->dev->spa_len, sc->dev->spa_memattr);
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}
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/*
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* XXX flush IMC
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*/
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goto completed;
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}
|
|
|
|
if ((bp->bio_flags & BIO_UNMAPPED) != 0) {
|
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if (sc->dev->spa_kva != NULL) {
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aiovec.iov_base = (char *)sc->dev->spa_kva +
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bp->bio_offset;
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aiovec.iov_len = bp->bio_length;
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auio.uio_iov = &aiovec;
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|
auio.uio_iovcnt = 1;
|
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auio.uio_resid = bp->bio_length;
|
|
auio.uio_offset = bp->bio_offset;
|
|
auio.uio_segflg = UIO_SYSSPACE;
|
|
auio.uio_rw = bp->bio_cmd == BIO_READ ?
|
|
UIO_WRITE : UIO_READ;
|
|
auio.uio_td = curthread;
|
|
error = uiomove_fromphys(bp->bio_ma,
|
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bp->bio_ma_offset, bp->bio_length, &auio);
|
|
bp->bio_resid = auio.uio_resid;
|
|
} else {
|
|
nvdimm_spa_g_all_unmapped(sc->dev, bp,
|
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bp->bio_cmd);
|
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bp->bio_resid = bp->bio_length;
|
|
error = 0;
|
|
}
|
|
} else {
|
|
aiovec.iov_base = bp->bio_data;
|
|
aiovec.iov_len = bp->bio_length;
|
|
auio.uio_iov = &aiovec;
|
|
auio.uio_iovcnt = 1;
|
|
auio.uio_resid = bp->bio_length;
|
|
auio.uio_offset = bp->bio_offset;
|
|
auio.uio_segflg = UIO_SYSSPACE;
|
|
auio.uio_rw = bp->bio_cmd == BIO_READ ? UIO_READ :
|
|
UIO_WRITE;
|
|
auio.uio_td = curthread;
|
|
error = nvdimm_spa_uio(sc->dev, &auio);
|
|
bp->bio_resid = auio.uio_resid;
|
|
}
|
|
bp->bio_bcount = bp->bio_length;
|
|
devstat_end_transaction_bio(sc->spa_g_devstat, bp);
|
|
completed:
|
|
bp->bio_completed = bp->bio_length;
|
|
g_io_deliver(bp, error);
|
|
}
|
|
}
|
|
|
|
static void
|
|
nvdimm_spa_g_start(struct bio *bp)
|
|
{
|
|
struct g_spa *sc;
|
|
|
|
sc = bp->bio_to->geom->softc;
|
|
if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) {
|
|
devstat_start_transaction_bio(sc->spa_g_devstat, bp);
|
|
}
|
|
mtx_lock(&sc->spa_g_mtx);
|
|
bioq_disksort(&sc->spa_g_queue, bp);
|
|
wakeup(&sc->spa_g_queue);
|
|
mtx_unlock(&sc->spa_g_mtx);
|
|
}
|
|
|
|
static int
|
|
nvdimm_spa_g_access(struct g_provider *pp, int r, int w, int e)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
|
|
static struct g_geom * nvdimm_spa_g_create(struct nvdimm_spa_dev *dev,
|
|
const char *name);
|
|
static g_ctl_destroy_geom_t nvdimm_spa_g_destroy_geom;
|
|
|
|
struct g_class nvdimm_spa_g_class = {
|
|
.name = "SPA",
|
|
.version = G_VERSION,
|
|
.start = nvdimm_spa_g_start,
|
|
.access = nvdimm_spa_g_access,
|
|
.destroy_geom = nvdimm_spa_g_destroy_geom,
|
|
};
|
|
DECLARE_GEOM_CLASS(nvdimm_spa_g_class, g_spa);
|
|
|
|
int
|
|
nvdimm_spa_init(struct SPA_mapping *spa, ACPI_NFIT_SYSTEM_ADDRESS *nfitaddr,
|
|
enum SPA_mapping_type spa_type)
|
|
{
|
|
char *name;
|
|
int error;
|
|
|
|
spa->spa_type = spa_type;
|
|
spa->spa_nfit_idx = nfitaddr->RangeIndex;
|
|
spa->dev.spa_domain =
|
|
((nfitaddr->Flags & ACPI_NFIT_PROXIMITY_VALID) != 0) ?
|
|
nfitaddr->ProximityDomain : -1;
|
|
spa->dev.spa_phys_base = nfitaddr->Address;
|
|
spa->dev.spa_len = nfitaddr->Length;
|
|
spa->dev.spa_efi_mem_flags = nfitaddr->MemoryMapping;
|
|
if (bootverbose) {
|
|
printf("NVDIMM SPA%d base %#016jx len %#016jx %s fl %#jx\n",
|
|
spa->spa_nfit_idx,
|
|
(uintmax_t)spa->dev.spa_phys_base,
|
|
(uintmax_t)spa->dev.spa_len,
|
|
nvdimm_SPA_uuid_list[spa_type].u_name,
|
|
spa->dev.spa_efi_mem_flags);
|
|
}
|
|
spa->dev.spa_memattr = nvdimm_spa_memattr(nfitaddr->MemoryMapping);
|
|
if (!nvdimm_SPA_uuid_list[spa_type].u_usr_acc)
|
|
return (0);
|
|
|
|
asprintf(&name, M_NVDIMM, "spa%d", spa->spa_nfit_idx);
|
|
error = nvdimm_spa_dev_init(&spa->dev, name, spa->spa_nfit_idx);
|
|
free(name, M_NVDIMM);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
nvdimm_spa_dev_init(struct nvdimm_spa_dev *dev, const char *name, int unit)
|
|
{
|
|
struct make_dev_args mda;
|
|
struct sglist *spa_sg;
|
|
char *devname;
|
|
int error, error1;
|
|
|
|
error1 = pmap_large_map(dev->spa_phys_base, dev->spa_len,
|
|
&dev->spa_kva, dev->spa_memattr);
|
|
if (error1 != 0) {
|
|
printf("NVDIMM %s cannot map into KVA, error %d\n", name,
|
|
error1);
|
|
dev->spa_kva = NULL;
|
|
}
|
|
|
|
spa_sg = sglist_alloc(1, M_WAITOK);
|
|
error = sglist_append_phys(spa_sg, dev->spa_phys_base,
|
|
dev->spa_len);
|
|
if (error == 0) {
|
|
dev->spa_obj = vm_pager_allocate(OBJT_SG, spa_sg, dev->spa_len,
|
|
VM_PROT_ALL, 0, NULL);
|
|
if (dev->spa_obj == NULL) {
|
|
printf("NVDIMM %s failed to alloc vm object", name);
|
|
sglist_free(spa_sg);
|
|
}
|
|
} else {
|
|
printf("NVDIMM %s failed to init sglist, error %d", name,
|
|
error);
|
|
sglist_free(spa_sg);
|
|
}
|
|
|
|
make_dev_args_init(&mda);
|
|
mda.mda_flags = MAKEDEV_WAITOK | MAKEDEV_CHECKNAME;
|
|
mda.mda_devsw = &spa_cdevsw;
|
|
mda.mda_cr = NULL;
|
|
mda.mda_uid = UID_ROOT;
|
|
mda.mda_gid = GID_OPERATOR;
|
|
mda.mda_mode = 0660;
|
|
mda.mda_si_drv1 = dev;
|
|
mda.mda_unit = unit;
|
|
asprintf(&devname, M_NVDIMM, "nvdimm_%s", name);
|
|
error = make_dev_s(&mda, &dev->spa_dev, "%s", devname);
|
|
free(devname, M_NVDIMM);
|
|
if (error != 0) {
|
|
printf("NVDIMM %s cannot create devfs node, error %d\n", name,
|
|
error);
|
|
if (error1 == 0)
|
|
error1 = error;
|
|
}
|
|
dev->spa_g = nvdimm_spa_g_create(dev, name);
|
|
if (dev->spa_g == NULL && error1 == 0)
|
|
error1 = ENXIO;
|
|
return (error1);
|
|
}
|
|
|
|
static struct g_geom *
|
|
nvdimm_spa_g_create(struct nvdimm_spa_dev *dev, const char *name)
|
|
{
|
|
struct g_geom *gp;
|
|
struct g_spa *sc;
|
|
int error;
|
|
|
|
gp = NULL;
|
|
sc = malloc(sizeof(struct g_spa), M_NVDIMM, M_WAITOK | M_ZERO);
|
|
sc->dev = dev;
|
|
bioq_init(&sc->spa_g_queue);
|
|
mtx_init(&sc->spa_g_mtx, "spag", NULL, MTX_DEF);
|
|
sc->spa_g_proc_run = true;
|
|
sc->spa_g_proc_exiting = false;
|
|
error = kproc_create(nvdimm_spa_g_thread, sc, &sc->spa_g_proc, 0, 0,
|
|
"g_spa");
|
|
if (error != 0) {
|
|
mtx_destroy(&sc->spa_g_mtx);
|
|
free(sc, M_NVDIMM);
|
|
printf("NVDIMM %s cannot create geom worker, error %d\n", name,
|
|
error);
|
|
} else {
|
|
g_topology_lock();
|
|
gp = g_new_geomf(&nvdimm_spa_g_class, "%s", name);
|
|
gp->softc = sc;
|
|
sc->spa_p = g_new_providerf(gp, "%s", name);
|
|
sc->spa_p->mediasize = dev->spa_len;
|
|
sc->spa_p->sectorsize = DEV_BSIZE;
|
|
sc->spa_p->flags |= G_PF_DIRECT_SEND | G_PF_DIRECT_RECEIVE |
|
|
G_PF_ACCEPT_UNMAPPED;
|
|
g_error_provider(sc->spa_p, 0);
|
|
sc->spa_g_devstat = devstat_new_entry("spa", -1, DEV_BSIZE,
|
|
DEVSTAT_ALL_SUPPORTED, DEVSTAT_TYPE_DIRECT,
|
|
DEVSTAT_PRIORITY_MAX);
|
|
g_topology_unlock();
|
|
}
|
|
return (gp);
|
|
}
|
|
|
|
void
|
|
nvdimm_spa_fini(struct SPA_mapping *spa)
|
|
{
|
|
|
|
nvdimm_spa_dev_fini(&spa->dev);
|
|
}
|
|
|
|
void
|
|
nvdimm_spa_dev_fini(struct nvdimm_spa_dev *dev)
|
|
{
|
|
|
|
if (dev->spa_g != NULL) {
|
|
g_topology_lock();
|
|
nvdimm_spa_g_destroy_geom(NULL, dev->spa_g->class, dev->spa_g);
|
|
g_topology_unlock();
|
|
}
|
|
if (dev->spa_dev != NULL) {
|
|
destroy_dev(dev->spa_dev);
|
|
dev->spa_dev = NULL;
|
|
}
|
|
vm_object_deallocate(dev->spa_obj);
|
|
if (dev->spa_kva != NULL) {
|
|
pmap_large_unmap(dev->spa_kva, dev->spa_len);
|
|
dev->spa_kva = NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
nvdimm_spa_g_destroy_geom(struct gctl_req *req, struct g_class *cp,
|
|
struct g_geom *gp)
|
|
{
|
|
struct g_spa *sc;
|
|
|
|
sc = gp->softc;
|
|
mtx_lock(&sc->spa_g_mtx);
|
|
sc->spa_g_proc_run = false;
|
|
wakeup(&sc->spa_g_queue);
|
|
while (!sc->spa_g_proc_exiting)
|
|
msleep(&sc->spa_g_queue, &sc->spa_g_mtx, PRIBIO, "spa_e", 0);
|
|
mtx_unlock(&sc->spa_g_mtx);
|
|
g_topology_assert();
|
|
g_wither_geom(gp, ENXIO);
|
|
sc->spa_p = NULL;
|
|
if (sc->spa_g_devstat != NULL) {
|
|
devstat_remove_entry(sc->spa_g_devstat);
|
|
sc->spa_g_devstat = NULL;
|
|
}
|
|
mtx_destroy(&sc->spa_g_mtx);
|
|
free(sc, M_NVDIMM);
|
|
return (0);
|
|
}
|