Add nvmecontrol resv to handle NVMe reservations.
NVMe reservations are quite alike to SCSI persistent reservations and can be used in clustered setups with shared multiport storage. MFC after: 10 days Relnotes: yes Sponsored by: iXsystems, Inc.
This commit is contained in:
mav
parent
1df5865d89
commit
a90bd18f79
@ -4,7 +4,7 @@ PACKAGE=runtime
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PROG= nvmecontrol
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SRCS= comnd.c nvmecontrol.c
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SRCS+= devlist.c firmware.c format.c identify.c logpage.c ns.c nsid.c
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SRCS+= perftest.c power.c reset.c sanitize.c
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SRCS+= perftest.c power.c reset.c resv.c sanitize.c
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#SRCS+= passthru.c
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SRCS+= identify_ext.c nvme_util.c nc_util.c
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MAN= nvmecontrol.8
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@ -34,7 +34,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd August 3, 2019
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.Dd August 5, 2019
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.Dt NVMECONTROL 8
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.Os
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.Sh NAME
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@ -121,6 +121,33 @@
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.Aq device id
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.Aq namespace id
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.Nm
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.Ic resv acquire
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.Aq Fl c Ar crkey
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.Op Fl p Ar prkey
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.Aq Fl t Ar rtype
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.Aq Fl a Ar racqa
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.Aq namespace id
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.Nm
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.Ic resv register
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.Op Fl c Ar crkey
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.Aq Fl k Ar nrkey
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.Aq Fl r Ar rrega
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.Op Fl i Ar iekey
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.Op Fl p Ar cptpl
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.Aq namespace id
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.Nm
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.Ic resv release
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.Aq Fl c Ar crkey
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.Aq Fl t Ar rtype
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.Aq Fl a Ar rrela
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.Aq namespace id
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.Nm
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.Ic resv report
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.Op Fl e
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.Op Fl v
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.Op Fl x
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.Aq namespace id
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.Nm
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.Ic firmware
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.Op Fl s Ar slot
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.Op Fl f Ar path_to_firmware
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@ -140,9 +167,9 @@
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.Ic sanitize
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.Aq Fl a Ar sanact
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.Op Fl c Ar owpass
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.Op Fl d
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.Op Fl p Ar ovrpat
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.Op Fl r
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.Op Fl D
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.Op Fl I
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.Op Fl U
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.Aq device id
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@ -223,6 +250,96 @@ will set Retain Asynchronous Event.
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Various namespace management commands.
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If namespace management is supported by device, allow list, create and delete
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namespaces, list, attach and detach controllers to namespaces.
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.Ss resv acquire
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Acquire or preempt namespace reservation, using specified parameters:
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.Bl -tag -width 6n
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.It Fl a
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Acquire action:
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.Bl -tag -compact -width 6n
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.It Dv 0
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Acquire
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.It Dv 1
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Preempt
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.It Dv 2
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Preempt and abort
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.El
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.It Fl c
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Current reservation key.
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.It Fl p
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Preempt reservation key.
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.It Fl t
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Reservation type:
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.Bl -tag -compact -width 6n
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.It Dv 1
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Write Exclusive
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.It Dv 2
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Exclusive Access
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.It Dv 3
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Write Exclusive - Registrants Only
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.It Dv 4
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Exclusive Access - Registrants Only
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.It Dv 5
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Write Exclusive - All Registrants
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.It Dv 6
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Exclusive Access - All Registrants
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.El
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.El
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.Ss resv register
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Register, unregister or replace reservation key, using specified parameters:
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.Bl -tag -width 6n
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.It Fl c
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Current reservation key.
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.It Fl k
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New reservation key.
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.It Fl r
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Register action:
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.Bl -tag -compact -width 6n
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.It Dv 0
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Register
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.It Dv 1
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Unregister
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.It Dv 2
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Replace
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.El
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.It Fl i
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Ignore Existing Key
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.It Fl p
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Change Persist Through Power Loss State:
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.Bl -tag -compact -width 6n
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.It Dv 0
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No change to PTPL state
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.It Dv 2
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Set PTPL state to ‘0’.
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Reservations are released and registrants are cleared on a power on.
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.It Dv 3
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Set PTPL state to ‘1’.
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Reservations and registrants persist across a power loss.
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.El
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.El
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.Ss resv release
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Release or clear reservation, using specified parameters:
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.Bl -tag -width 6n
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.It Fl c
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Current reservation key.
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.It Fl t
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Reservation type.
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.It Fl a
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Release action:
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.Bl -tag -compact -width 6n
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.It Dv 0
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Release
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.It Dv 1
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Clean
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.El
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.El
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.Ss resv report
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Print reservation status, using specified parameters:
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.Bl -tag -width 6n
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.It Fl x
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Print reservation status in hex.
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.It Fl e
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Use Extended Data Structure.
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.El
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.Ss format
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Format either specified namespace, or all namespaces of specified controller,
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using specified parameters:
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@ -281,7 +398,7 @@ The number of passes when performing an
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operation.
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Valid values are between 1 and 16.
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The default is 1.
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.It Fl D
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.It Fl d
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No Deallocate After Sanitize.
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.It Fl I
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When performing an
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442
sbin/nvmecontrol/resv.c
Normal file
442
sbin/nvmecontrol/resv.c
Normal file
@ -0,0 +1,442 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2019 Alexander Motin <mav@FreeBSD.org>
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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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* without modification, immediately at the beginning of the file.
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 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 <sys/param.h>
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#include <sys/ioccom.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "nvmecontrol.h"
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/* Tables for command line parsing */
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static cmd_fn_t resv;
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static cmd_fn_t resvacquire;
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static cmd_fn_t resvregister;
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static cmd_fn_t resvrelease;
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static cmd_fn_t resvreport;
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#define NONE 0xffffffffu
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#define NONE64 0xffffffffffffffffull
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#define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
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#define OPT_END { NULL, 0, arg_none, NULL, NULL }
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static struct cmd resv_cmd = {
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.name = "resv",
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.fn = resv,
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.descr = "Reservation commands",
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.ctx_size = 0,
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.opts = NULL,
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.args = NULL,
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};
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CMD_COMMAND(resv_cmd);
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static struct acquire_options {
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uint64_t crkey;
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uint64_t prkey;
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uint8_t rtype;
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uint8_t racqa;
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const char *dev;
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} acquire_opt = {
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.crkey = 0,
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.prkey = 0,
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.rtype = 0,
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.racqa = 0,
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.dev = NULL,
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};
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static const struct opts acquire_opts[] = {
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OPT("crkey", 'c', arg_uint64, acquire_opt, crkey,
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"Current Reservation Key"),
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OPT("prkey", 'p', arg_uint64, acquire_opt, prkey,
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"Preempt Reservation Key"),
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OPT("rtype", 't', arg_uint8, acquire_opt, rtype,
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"Reservation Type"),
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OPT("racqa", 'a', arg_uint8, acquire_opt, racqa,
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"Acquire Action (0=acq, 1=pre, 2=pre+ab)"),
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{ NULL, 0, arg_none, NULL, NULL }
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};
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static const struct args acquire_args[] = {
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{ arg_string, &acquire_opt.dev, "namespace-id" },
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{ arg_none, NULL, NULL },
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};
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static struct cmd acquire_cmd = {
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.name = "acquire",
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.fn = resvacquire,
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.descr = "Acquire/preempt reservation",
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.ctx_size = sizeof(acquire_opt),
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.opts = acquire_opts,
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.args = acquire_args,
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};
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CMD_SUBCOMMAND(resv_cmd, acquire_cmd);
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static struct register_options {
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uint64_t crkey;
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uint64_t nrkey;
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uint8_t rrega;
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bool iekey;
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uint8_t cptpl;
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const char *dev;
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} register_opt = {
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.crkey = 0,
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.nrkey = 0,
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.rrega = 0,
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.iekey = false,
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.cptpl = 0,
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.dev = NULL,
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};
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static const struct opts register_opts[] = {
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OPT("crkey", 'c', arg_uint64, register_opt, crkey,
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"Current Reservation Key"),
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OPT("nrkey", 'k', arg_uint64, register_opt, nrkey,
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"New Reservation Key"),
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OPT("rrega", 'r', arg_uint8, register_opt, rrega,
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"Register Action (0=reg, 1=unreg, 2=replace)"),
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OPT("iekey", 'i', arg_none, register_opt, iekey,
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"Ignore Existing Key"),
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OPT("cptpl", 'p', arg_uint8, register_opt, cptpl,
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"Change Persist Through Power Loss State"),
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{ NULL, 0, arg_none, NULL, NULL }
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};
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static const struct args register_args[] = {
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{ arg_string, ®ister_opt.dev, "namespace-id" },
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{ arg_none, NULL, NULL },
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};
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static struct cmd register_cmd = {
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.name = "register",
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.fn = resvregister,
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.descr = "Register/unregister reservation",
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.ctx_size = sizeof(register_opt),
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.opts = register_opts,
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.args = register_args,
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};
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CMD_SUBCOMMAND(resv_cmd, register_cmd);
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static struct release_options {
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uint64_t crkey;
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uint8_t rtype;
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uint8_t rrela;
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const char *dev;
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} release_opt = {
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.crkey = 0,
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.rtype = 0,
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.rrela = 0,
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.dev = NULL,
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};
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static const struct opts release_opts[] = {
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OPT("crkey", 'c', arg_uint64, release_opt, crkey,
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"Current Reservation Key"),
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OPT("rtype", 't', arg_uint8, release_opt, rtype,
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"Reservation Type"),
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OPT("rrela", 'a', arg_uint8, release_opt, rrela,
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"Release Action (0=release, 1=clear)"),
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{ NULL, 0, arg_none, NULL, NULL }
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};
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static const struct args release_args[] = {
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{ arg_string, &release_opt.dev, "namespace-id" },
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{ arg_none, NULL, NULL },
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};
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static struct cmd release_cmd = {
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.name = "release",
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.fn = resvrelease,
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.descr = "Release/clear reservation",
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.ctx_size = sizeof(release_opt),
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.opts = release_opts,
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.args = release_args,
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};
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CMD_SUBCOMMAND(resv_cmd, release_cmd);
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static struct report_options {
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bool hex;
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bool verbose;
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bool eds;
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const char *dev;
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} report_opt = {
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.hex = false,
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.verbose = false,
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.eds = false,
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.dev = NULL,
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};
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static const struct opts report_opts[] = {
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OPT("hex", 'x', arg_none, report_opt, hex,
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"Print reservation status in hex"),
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OPT("verbose", 'v', arg_none, report_opt, verbose,
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"More verbosity"),
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OPT("eds", 'e', arg_none, report_opt, eds,
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"Extended Data Structure"),
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{ NULL, 0, arg_none, NULL, NULL }
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};
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static const struct args report_args[] = {
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{ arg_string, &report_opt.dev, "namespace-id" },
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{ arg_none, NULL, NULL },
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};
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static struct cmd report_cmd = {
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.name = "report",
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.fn = resvreport,
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.descr = "Print reservation status",
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.ctx_size = sizeof(report_opt),
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.opts = report_opts,
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.args = report_args,
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};
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CMD_SUBCOMMAND(resv_cmd, report_cmd);
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/* handles NVME_OPC_RESERVATION_* NVM commands */
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static void
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resvacquire(const struct cmd *f, int argc, char *argv[])
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{
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struct nvme_pt_command pt;
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uint64_t data[2];
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int fd;
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uint32_t nsid;
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if (arg_parse(argc, argv, f))
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return;
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open_dev(acquire_opt.dev, &fd, 1, 1);
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get_nsid(fd, NULL, &nsid);
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if (nsid == 0) {
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fprintf(stderr, "This command require namespace-id\n");
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arg_help(argc, argv, f);
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}
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data[0] = htole64(acquire_opt.crkey);
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data[1] = htole64(acquire_opt.prkey);
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc = NVME_OPC_RESERVATION_ACQUIRE;
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pt.cmd.cdw10 = htole32((acquire_opt.racqa & 7) |
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(acquire_opt.rtype << 8));
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pt.buf = &data;
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pt.len = sizeof(data);
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pt.is_read = 0;
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if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
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err(1, "acquire request failed");
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if (nvme_completion_is_error(&pt.cpl))
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errx(1, "acquire request returned error");
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close(fd);
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exit(0);
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}
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static void
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resvregister(const struct cmd *f, int argc, char *argv[])
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{
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struct nvme_pt_command pt;
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uint64_t data[2];
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int fd;
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uint32_t nsid;
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if (arg_parse(argc, argv, f))
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return;
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open_dev(register_opt.dev, &fd, 1, 1);
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get_nsid(fd, NULL, &nsid);
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if (nsid == 0) {
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fprintf(stderr, "This command require namespace-id\n");
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arg_help(argc, argv, f);
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}
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data[0] = htole64(register_opt.crkey);
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data[1] = htole64(register_opt.nrkey);
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc = NVME_OPC_RESERVATION_REGISTER;
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pt.cmd.cdw10 = htole32((register_opt.rrega & 7) |
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(register_opt.iekey << 3) | (register_opt.cptpl << 30));
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pt.buf = &data;
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pt.len = sizeof(data);
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pt.is_read = 0;
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if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
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err(1, "register request failed");
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if (nvme_completion_is_error(&pt.cpl))
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errx(1, "register request returned error");
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close(fd);
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exit(0);
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}
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static void
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resvrelease(const struct cmd *f, int argc, char *argv[])
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{
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struct nvme_pt_command pt;
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uint64_t data[1];
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int fd;
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uint32_t nsid;
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if (arg_parse(argc, argv, f))
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return;
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open_dev(release_opt.dev, &fd, 1, 1);
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get_nsid(fd, NULL, &nsid);
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if (nsid == 0) {
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fprintf(stderr, "This command require namespace-id\n");
|
||||
arg_help(argc, argv, f);
|
||||
}
|
||||
|
||||
data[0] = htole64(release_opt.crkey);
|
||||
|
||||
memset(&pt, 0, sizeof(pt));
|
||||
pt.cmd.opc = NVME_OPC_RESERVATION_RELEASE;
|
||||
pt.cmd.cdw10 = htole32((release_opt.rrela & 7) |
|
||||
(release_opt.rtype << 8));
|
||||
pt.buf = &data;
|
||||
pt.len = sizeof(data);
|
||||
pt.is_read = 0;
|
||||
|
||||
if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
|
||||
err(1, "release request failed");
|
||||
|
||||
if (nvme_completion_is_error(&pt.cpl))
|
||||
errx(1, "release request returned error");
|
||||
|
||||
close(fd);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
static void
|
||||
resvreport(const struct cmd *f, int argc, char *argv[])
|
||||
{
|
||||
struct nvme_pt_command pt;
|
||||
struct nvme_resv_status *s;
|
||||
struct nvme_resv_status_ext *e;
|
||||
uint8_t data[4096];
|
||||
int fd;
|
||||
u_int i, n;
|
||||
uint32_t nsid;
|
||||
|
||||
if (arg_parse(argc, argv, f))
|
||||
return;
|
||||
open_dev(report_opt.dev, &fd, 1, 1);
|
||||
get_nsid(fd, NULL, &nsid);
|
||||
if (nsid == 0) {
|
||||
fprintf(stderr, "This command require namespace-id\n");
|
||||
arg_help(argc, argv, f);
|
||||
}
|
||||
|
||||
bzero(data, sizeof(data));
|
||||
memset(&pt, 0, sizeof(pt));
|
||||
pt.cmd.opc = NVME_OPC_RESERVATION_REPORT;
|
||||
pt.cmd.cdw10 = htole32(sizeof(data) / 4 - 1);
|
||||
pt.cmd.cdw11 = htole32(report_opt.eds); /* EDS */
|
||||
pt.buf = &data;
|
||||
pt.len = sizeof(data);
|
||||
pt.is_read = 1;
|
||||
|
||||
if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
|
||||
err(1, "report request failed");
|
||||
|
||||
if (nvme_completion_is_error(&pt.cpl))
|
||||
errx(1, "report request returned error");
|
||||
|
||||
close(fd);
|
||||
|
||||
if (report_opt.eds)
|
||||
nvme_resv_status_ext_swapbytes((void *)data, sizeof(data));
|
||||
else
|
||||
nvme_resv_status_swapbytes((void *)data, sizeof(data));
|
||||
|
||||
if (report_opt.hex) {
|
||||
i = sizeof(data);
|
||||
if (!report_opt.verbose) {
|
||||
for (; i > 64; i--) {
|
||||
if (data[i - 1] != 0)
|
||||
break;
|
||||
}
|
||||
}
|
||||
print_hex(&data, i);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
s = (struct nvme_resv_status *)data;
|
||||
n = (s->regctl[1] << 8) | s->regctl[0];
|
||||
printf("Generation: %u\n", s->gen);
|
||||
printf("Reservation Type: %u\n", s->rtype);
|
||||
printf("Number of Registered Controllers: %u\n", n);
|
||||
printf("Persist Through Power Loss State: %u\n", s->ptpls);
|
||||
if (report_opt.eds) {
|
||||
e = (struct nvme_resv_status_ext *)data;
|
||||
n = MIN(n, (sizeof(data) - sizeof(e)) / sizeof(e->ctrlr[0]));
|
||||
for (i = 0; i < n; i++) {
|
||||
printf("Controller ID: 0x%04x\n",
|
||||
e->ctrlr[i].ctrlr_id);
|
||||
printf(" Reservation Status: %u\n",
|
||||
e->ctrlr[i].rcsts);
|
||||
printf(" Reservation Key: 0x%08jx\n",
|
||||
e->ctrlr[i].rkey);
|
||||
printf(" Host Identifier: 0x%08jx%08jx\n",
|
||||
e->ctrlr[i].hostid[0], e->ctrlr[i].hostid[1]);
|
||||
}
|
||||
} else {
|
||||
n = MIN(n, (sizeof(data) - sizeof(s)) / sizeof(s->ctrlr[0]));
|
||||
for (i = 0; i < n; i++) {
|
||||
printf("Controller ID: 0x%04x\n",
|
||||
s->ctrlr[i].ctrlr_id);
|
||||
printf(" Reservation Status: %u\n",
|
||||
s->ctrlr[i].rcsts);
|
||||
printf(" Host Identifier: 0x%08jx\n",
|
||||
s->ctrlr[i].hostid);
|
||||
printf(" Reservation Key: 0x%08jx\n",
|
||||
s->ctrlr[i].rkey);
|
||||
}
|
||||
}
|
||||
exit(0);
|
||||
}
|
||||
|
||||
static void
|
||||
resv(const struct cmd *nf __unused, int argc, char *argv[])
|
||||
{
|
||||
|
||||
cmd_dispatch(argc, argv, &resv_cmd);
|
||||
}
|
||||
@ -71,7 +71,7 @@ static const struct opts sanitize_opts[] = {
|
||||
#define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
|
||||
OPT("ause", 'U', arg_none, opt, ause,
|
||||
"Allow Unrestricted Sanitize Exit"),
|
||||
OPT("ndas", 'D', arg_none, opt, ndas,
|
||||
OPT("ndas", 'd', arg_none, opt, ndas,
|
||||
"No Deallocate After Sanitize"),
|
||||
OPT("oipbp", 'I', arg_none, opt, oipbp,
|
||||
"Overwrite Invert Pattern Between Passes"),
|
||||
|
||||
@ -1401,6 +1401,56 @@ struct intel_log_temp_stats
|
||||
|
||||
_Static_assert(sizeof(struct intel_log_temp_stats) == 13 * 8, "bad size for intel_log_temp_stats");
|
||||
|
||||
struct nvme_resv_reg_ctrlr
|
||||
{
|
||||
uint16_t ctrlr_id; /* Controller ID */
|
||||
uint8_t rcsts; /* Reservation Status */
|
||||
uint8_t reserved3[5];
|
||||
uint64_t hostid; /* Host Identifier */
|
||||
uint64_t rkey; /* Reservation Key */
|
||||
} __packed __aligned(4);
|
||||
|
||||
_Static_assert(sizeof(struct nvme_resv_reg_ctrlr) == 24, "bad size for nvme_resv_reg_ctrlr");
|
||||
|
||||
struct nvme_resv_reg_ctrlr_ext
|
||||
{
|
||||
uint16_t ctrlr_id; /* Controller ID */
|
||||
uint8_t rcsts; /* Reservation Status */
|
||||
uint8_t reserved3[5];
|
||||
uint64_t rkey; /* Reservation Key */
|
||||
uint64_t hostid[2]; /* Host Identifier */
|
||||
uint8_t reserved32[32];
|
||||
} __packed __aligned(4);
|
||||
|
||||
_Static_assert(sizeof(struct nvme_resv_reg_ctrlr_ext) == 64, "bad size for nvme_resv_reg_ctrlr_ext");
|
||||
|
||||
struct nvme_resv_status
|
||||
{
|
||||
uint32_t gen; /* Generation */
|
||||
uint8_t rtype; /* Reservation Type */
|
||||
uint8_t regctl[2]; /* Number of Registered Controllers */
|
||||
uint8_t reserved7[2];
|
||||
uint8_t ptpls; /* Persist Through Power Loss State */
|
||||
uint8_t reserved10[14];
|
||||
struct nvme_resv_reg_ctrlr ctrlr[0];
|
||||
} __packed __aligned(4);
|
||||
|
||||
_Static_assert(sizeof(struct nvme_resv_status) == 24, "bad size for nvme_resv_status");
|
||||
|
||||
struct nvme_resv_status_ext
|
||||
{
|
||||
uint32_t gen; /* Generation */
|
||||
uint8_t rtype; /* Reservation Type */
|
||||
uint8_t regctl[2]; /* Number of Registered Controllers */
|
||||
uint8_t reserved7[2];
|
||||
uint8_t ptpls; /* Persist Through Power Loss State */
|
||||
uint8_t reserved10[14];
|
||||
uint8_t reserved24[40];
|
||||
struct nvme_resv_reg_ctrlr_ext ctrlr[0];
|
||||
} __packed __aligned(4);
|
||||
|
||||
_Static_assert(sizeof(struct nvme_resv_status_ext) == 64, "bad size for nvme_resv_status_ext");
|
||||
|
||||
#define NVME_TEST_MAX_THREADS 128
|
||||
|
||||
struct nvme_io_test {
|
||||
@ -1861,4 +1911,34 @@ void intel_log_temp_stats_swapbytes(struct intel_log_temp_stats *s)
|
||||
s->est_offset = le64toh(s->est_offset);
|
||||
}
|
||||
|
||||
static inline
|
||||
void nvme_resv_status_swapbytes(struct nvme_resv_status *s, size_t size)
|
||||
{
|
||||
u_int i, n;
|
||||
|
||||
s->gen = le32toh(s->gen);
|
||||
n = (s->regctl[1] << 8) | s->regctl[0];
|
||||
n = MIN(n, (size - sizeof(s)) / sizeof(s->ctrlr[0]));
|
||||
for (i = 0; i < n; i++) {
|
||||
s->ctrlr[i].ctrlr_id = le16toh(s->ctrlr[i].ctrlr_id);
|
||||
s->ctrlr[i].hostid = le64toh(s->ctrlr[i].hostid);
|
||||
s->ctrlr[i].rkey = le64toh(s->ctrlr[i].rkey);
|
||||
}
|
||||
}
|
||||
|
||||
static inline
|
||||
void nvme_resv_status_ext_swapbytes(struct nvme_resv_status_ext *s, size_t size)
|
||||
{
|
||||
u_int i, n;
|
||||
|
||||
s->gen = le32toh(s->gen);
|
||||
n = (s->regctl[1] << 8) | s->regctl[0];
|
||||
n = MIN(n, (size - sizeof(s)) / sizeof(s->ctrlr[0]));
|
||||
for (i = 0; i < n; i++) {
|
||||
s->ctrlr[i].ctrlr_id = le16toh(s->ctrlr[i].ctrlr_id);
|
||||
s->ctrlr[i].rkey = le64toh(s->ctrlr[i].rkey);
|
||||
nvme_le128toh((void *)s->ctrlr[i].hostid);
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* __NVME_H__ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user