Date: Mon, 5 Aug 2019 17:36:01 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r350599 - in head: sbin/nvmecontrol sys/dev/nvme Message-ID: <201908051736.x75Ha1a4092377@repo.freebsd.org>
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Author: mav Date: Mon Aug 5 17:36:00 2019 New Revision: 350599 URL: https://svnweb.freebsd.org/changeset/base/350599 Log: 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. Added: head/sbin/nvmecontrol/resv.c (contents, props changed) Modified: head/sbin/nvmecontrol/Makefile head/sbin/nvmecontrol/nvmecontrol.8 head/sbin/nvmecontrol/sanitize.c head/sys/dev/nvme/nvme.h Modified: head/sbin/nvmecontrol/Makefile ============================================================================== --- head/sbin/nvmecontrol/Makefile Mon Aug 5 17:32:16 2019 (r350598) +++ head/sbin/nvmecontrol/Makefile Mon Aug 5 17:36:00 2019 (r350599) @@ -4,7 +4,7 @@ PACKAGE=runtime PROG= nvmecontrol SRCS= comnd.c nvmecontrol.c SRCS+= devlist.c firmware.c format.c identify.c logpage.c ns.c nsid.c -SRCS+= perftest.c power.c reset.c sanitize.c +SRCS+= perftest.c power.c reset.c resv.c sanitize.c #SRCS+= passthru.c SRCS+= identify_ext.c nvme_util.c nc_util.c MAN= nvmecontrol.8 Modified: head/sbin/nvmecontrol/nvmecontrol.8 ============================================================================== --- head/sbin/nvmecontrol/nvmecontrol.8 Mon Aug 5 17:32:16 2019 (r350598) +++ head/sbin/nvmecontrol/nvmecontrol.8 Mon Aug 5 17:36:00 2019 (r350599) @@ -34,7 +34,7 @@ .\" .\" $FreeBSD$ .\" -.Dd August 3, 2019 +.Dd August 5, 2019 .Dt NVMECONTROL 8 .Os .Sh NAME @@ -121,6 +121,33 @@ .Aq device id .Aq namespace id .Nm +.Ic resv acquire +.Aq Fl c Ar crkey +.Op Fl p Ar prkey +.Aq Fl t Ar rtype +.Aq Fl a Ar racqa +.Aq namespace id +.Nm +.Ic resv register +.Op Fl c Ar crkey +.Aq Fl k Ar nrkey +.Aq Fl r Ar rrega +.Op Fl i Ar iekey +.Op Fl p Ar cptpl +.Aq namespace id +.Nm +.Ic resv release +.Aq Fl c Ar crkey +.Aq Fl t Ar rtype +.Aq Fl a Ar rrela +.Aq namespace id +.Nm +.Ic resv report +.Op Fl e +.Op Fl v +.Op Fl x +.Aq namespace id +.Nm .Ic firmware .Op Fl s Ar slot .Op Fl f Ar path_to_firmware @@ -140,9 +167,9 @@ .Ic sanitize .Aq Fl a Ar sanact .Op Fl c Ar owpass +.Op Fl d .Op Fl p Ar ovrpat .Op Fl r -.Op Fl D .Op Fl I .Op Fl U .Aq device id @@ -223,6 +250,96 @@ will set Retain Asynchronous Event. Various namespace management commands. If namespace management is supported by device, allow list, create and delete namespaces, list, attach and detach controllers to namespaces. +.Ss resv acquire +Acquire or preempt namespace reservation, using specified parameters: +.Bl -tag -width 6n +.It Fl a +Acquire action: +.Bl -tag -compact -width 6n +.It Dv 0 +Acquire +.It Dv 1 +Preempt +.It Dv 2 +Preempt and abort +.El +.It Fl c +Current reservation key. +.It Fl p +Preempt reservation key. +.It Fl t +Reservation type: +.Bl -tag -compact -width 6n +.It Dv 1 +Write Exclusive +.It Dv 2 +Exclusive Access +.It Dv 3 +Write Exclusive - Registrants Only +.It Dv 4 +Exclusive Access - Registrants Only +.It Dv 5 +Write Exclusive - All Registrants +.It Dv 6 +Exclusive Access - All Registrants +.El +.El +.Ss resv register +Register, unregister or replace reservation key, using specified parameters: +.Bl -tag -width 6n +.It Fl c +Current reservation key. +.It Fl k +New reservation key. +.It Fl r +Register action: +.Bl -tag -compact -width 6n +.It Dv 0 +Register +.It Dv 1 +Unregister +.It Dv 2 +Replace +.El +.It Fl i +Ignore Existing Key +.It Fl p +Change Persist Through Power Loss State: +.Bl -tag -compact -width 6n +.It Dv 0 +No change to PTPL state +.It Dv 2 +Set PTPL state to ‘0’. +Reservations are released and registrants are cleared on a power on. +.It Dv 3 +Set PTPL state to ‘1’. +Reservations and registrants persist across a power loss. +.El +.El +.Ss resv release +Release or clear reservation, using specified parameters: +.Bl -tag -width 6n +.It Fl c +Current reservation key. +.It Fl t +Reservation type. +.It Fl a +Release action: +.Bl -tag -compact -width 6n +.It Dv 0 +Release +.It Dv 1 +Clean +.El +.El +.Ss resv report +Print reservation status, using specified parameters: +.Bl -tag -width 6n +.It Fl x +Print reservation status in hex. +.It Fl e +Use Extended Data Structure. +.El .Ss format Format either specified namespace, or all namespaces of specified controller, using specified parameters: @@ -281,7 +398,7 @@ The number of passes when performing an operation. Valid values are between 1 and 16. The default is 1. -.It Fl D +.It Fl d No Deallocate After Sanitize. .It Fl I When performing an Added: head/sbin/nvmecontrol/resv.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sbin/nvmecontrol/resv.c Mon Aug 5 17:36:00 2019 (r350599) @@ -0,0 +1,442 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (C) 2019 Alexander Motin <mav@FreeBSD.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer, + * without modification, immediately at the beginning of the file. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/ioccom.h> + +#include <err.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "nvmecontrol.h" + +/* Tables for command line parsing */ + +static cmd_fn_t resv; +static cmd_fn_t resvacquire; +static cmd_fn_t resvregister; +static cmd_fn_t resvrelease; +static cmd_fn_t resvreport; + +#define NONE 0xffffffffu +#define NONE64 0xffffffffffffffffull +#define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc } +#define OPT_END { NULL, 0, arg_none, NULL, NULL } + +static struct cmd resv_cmd = { + .name = "resv", + .fn = resv, + .descr = "Reservation commands", + .ctx_size = 0, + .opts = NULL, + .args = NULL, +}; + +CMD_COMMAND(resv_cmd); + +static struct acquire_options { + uint64_t crkey; + uint64_t prkey; + uint8_t rtype; + uint8_t racqa; + const char *dev; +} acquire_opt = { + .crkey = 0, + .prkey = 0, + .rtype = 0, + .racqa = 0, + .dev = NULL, +}; + +static const struct opts acquire_opts[] = { + OPT("crkey", 'c', arg_uint64, acquire_opt, crkey, + "Current Reservation Key"), + OPT("prkey", 'p', arg_uint64, acquire_opt, prkey, + "Preempt Reservation Key"), + OPT("rtype", 't', arg_uint8, acquire_opt, rtype, + "Reservation Type"), + OPT("racqa", 'a', arg_uint8, acquire_opt, racqa, + "Acquire Action (0=acq, 1=pre, 2=pre+ab)"), + { NULL, 0, arg_none, NULL, NULL } +}; + +static const struct args acquire_args[] = { + { arg_string, &acquire_opt.dev, "namespace-id" }, + { arg_none, NULL, NULL }, +}; + +static struct cmd acquire_cmd = { + .name = "acquire", + .fn = resvacquire, + .descr = "Acquire/preempt reservation", + .ctx_size = sizeof(acquire_opt), + .opts = acquire_opts, + .args = acquire_args, +}; + +CMD_SUBCOMMAND(resv_cmd, acquire_cmd); + +static struct register_options { + uint64_t crkey; + uint64_t nrkey; + uint8_t rrega; + bool iekey; + uint8_t cptpl; + const char *dev; +} register_opt = { + .crkey = 0, + .nrkey = 0, + .rrega = 0, + .iekey = false, + .cptpl = 0, + .dev = NULL, +}; + +static const struct opts register_opts[] = { + OPT("crkey", 'c', arg_uint64, register_opt, crkey, + "Current Reservation Key"), + OPT("nrkey", 'k', arg_uint64, register_opt, nrkey, + "New Reservation Key"), + OPT("rrega", 'r', arg_uint8, register_opt, rrega, + "Register Action (0=reg, 1=unreg, 2=replace)"), + OPT("iekey", 'i', arg_none, register_opt, iekey, + "Ignore Existing Key"), + OPT("cptpl", 'p', arg_uint8, register_opt, cptpl, + "Change Persist Through Power Loss State"), + { NULL, 0, arg_none, NULL, NULL } +}; + +static const struct args register_args[] = { + { arg_string, ®ister_opt.dev, "namespace-id" }, + { arg_none, NULL, NULL }, +}; + +static struct cmd register_cmd = { + .name = "register", + .fn = resvregister, + .descr = "Register/unregister reservation", + .ctx_size = sizeof(register_opt), + .opts = register_opts, + .args = register_args, +}; + +CMD_SUBCOMMAND(resv_cmd, register_cmd); + +static struct release_options { + uint64_t crkey; + uint8_t rtype; + uint8_t rrela; + const char *dev; +} release_opt = { + .crkey = 0, + .rtype = 0, + .rrela = 0, + .dev = NULL, +}; + +static const struct opts release_opts[] = { + OPT("crkey", 'c', arg_uint64, release_opt, crkey, + "Current Reservation Key"), + OPT("rtype", 't', arg_uint8, release_opt, rtype, + "Reservation Type"), + OPT("rrela", 'a', arg_uint8, release_opt, rrela, + "Release Action (0=release, 1=clear)"), + { NULL, 0, arg_none, NULL, NULL } +}; + +static const struct args release_args[] = { + { arg_string, &release_opt.dev, "namespace-id" }, + { arg_none, NULL, NULL }, +}; + +static struct cmd release_cmd = { + .name = "release", + .fn = resvrelease, + .descr = "Release/clear reservation", + .ctx_size = sizeof(release_opt), + .opts = release_opts, + .args = release_args, +}; + +CMD_SUBCOMMAND(resv_cmd, release_cmd); + +static struct report_options { + bool hex; + bool verbose; + bool eds; + const char *dev; +} report_opt = { + .hex = false, + .verbose = false, + .eds = false, + .dev = NULL, +}; + +static const struct opts report_opts[] = { + OPT("hex", 'x', arg_none, report_opt, hex, + "Print reservation status in hex"), + OPT("verbose", 'v', arg_none, report_opt, verbose, + "More verbosity"), + OPT("eds", 'e', arg_none, report_opt, eds, + "Extended Data Structure"), + { NULL, 0, arg_none, NULL, NULL } +}; + +static const struct args report_args[] = { + { arg_string, &report_opt.dev, "namespace-id" }, + { arg_none, NULL, NULL }, +}; + +static struct cmd report_cmd = { + .name = "report", + .fn = resvreport, + .descr = "Print reservation status", + .ctx_size = sizeof(report_opt), + .opts = report_opts, + .args = report_args, +}; + +CMD_SUBCOMMAND(resv_cmd, report_cmd); + +/* handles NVME_OPC_RESERVATION_* NVM commands */ + +static void +resvacquire(const struct cmd *f, int argc, char *argv[]) +{ + struct nvme_pt_command pt; + uint64_t data[2]; + int fd; + uint32_t nsid; + + if (arg_parse(argc, argv, f)) + return; + open_dev(acquire_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); + } + + data[0] = htole64(acquire_opt.crkey); + data[1] = htole64(acquire_opt.prkey); + + memset(&pt, 0, sizeof(pt)); + pt.cmd.opc = NVME_OPC_RESERVATION_ACQUIRE; + pt.cmd.cdw10 = htole32((acquire_opt.racqa & 7) | + (acquire_opt.rtype << 8)); + pt.buf = &data; + pt.len = sizeof(data); + pt.is_read = 0; + + if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) + err(1, "acquire request failed"); + + if (nvme_completion_is_error(&pt.cpl)) + errx(1, "acquire request returned error"); + + close(fd); + exit(0); +} + +static void +resvregister(const struct cmd *f, int argc, char *argv[]) +{ + struct nvme_pt_command pt; + uint64_t data[2]; + int fd; + uint32_t nsid; + + if (arg_parse(argc, argv, f)) + return; + open_dev(register_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); + } + + data[0] = htole64(register_opt.crkey); + data[1] = htole64(register_opt.nrkey); + + memset(&pt, 0, sizeof(pt)); + pt.cmd.opc = NVME_OPC_RESERVATION_REGISTER; + pt.cmd.cdw10 = htole32((register_opt.rrega & 7) | + (register_opt.iekey << 3) | (register_opt.cptpl << 30)); + pt.buf = &data; + pt.len = sizeof(data); + pt.is_read = 0; + + if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) + err(1, "register request failed"); + + if (nvme_completion_is_error(&pt.cpl)) + errx(1, "register request returned error"); + + close(fd); + exit(0); +} + +static void +resvrelease(const struct cmd *f, int argc, char *argv[]) +{ + struct nvme_pt_command pt; + uint64_t data[1]; + int fd; + uint32_t nsid; + + if (arg_parse(argc, argv, f)) + return; + open_dev(release_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); + } + + 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); +} Modified: head/sbin/nvmecontrol/sanitize.c ============================================================================== --- head/sbin/nvmecontrol/sanitize.c Mon Aug 5 17:32:16 2019 (r350598) +++ head/sbin/nvmecontrol/sanitize.c Mon Aug 5 17:36:00 2019 (r350599) @@ -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"), Modified: head/sys/dev/nvme/nvme.h ============================================================================== --- head/sys/dev/nvme/nvme.h Mon Aug 5 17:32:16 2019 (r350598) +++ head/sys/dev/nvme/nvme.h Mon Aug 5 17:36:00 2019 (r350599) @@ -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 { @@ -1859,6 +1909,36 @@ void intel_log_temp_stats_swapbytes(struct intel_log_t s->max_oper_temp = le64toh(s->max_oper_temp); s->min_oper_temp = le64toh(s->min_oper_temp); 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__ */
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