From owner-svn-src-head@freebsd.org Sat Jan 30 06:18:38 2016 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D3114A72A2A; Sat, 30 Jan 2016 06:18:38 +0000 (UTC) (envelope-from imp@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 966781E6A; Sat, 30 Jan 2016 06:18:38 +0000 (UTC) (envelope-from imp@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u0U6IbKZ005069; Sat, 30 Jan 2016 06:18:37 GMT (envelope-from imp@FreeBSD.org) Received: (from imp@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u0U6Ibm8005064; Sat, 30 Jan 2016 06:18:37 GMT (envelope-from imp@FreeBSD.org) Message-Id: <201601300618.u0U6Ibm8005064@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: imp set sender to imp@FreeBSD.org using -f From: Warner Losh Date: Sat, 30 Jan 2016 06:18:37 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r295062 - head/sbin/nvmecontrol X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 30 Jan 2016 06:18:39 -0000 Author: imp Date: Sat Jan 30 06:18:37 2016 New Revision: 295062 URL: https://svnweb.freebsd.org/changeset/base/295062 Log: Implement power command to list all power modes, find out the power mode we're in and to set the power mode. Added: head/sbin/nvmecontrol/power.c (contents, props changed) Modified: head/sbin/nvmecontrol/Makefile head/sbin/nvmecontrol/nvmecontrol.8 head/sbin/nvmecontrol/nvmecontrol.c head/sbin/nvmecontrol/nvmecontrol.h Modified: head/sbin/nvmecontrol/Makefile ============================================================================== --- head/sbin/nvmecontrol/Makefile Sat Jan 30 06:12:03 2016 (r295061) +++ head/sbin/nvmecontrol/Makefile Sat Jan 30 06:18:37 2016 (r295062) @@ -2,7 +2,7 @@ PROG= nvmecontrol SRCS= nvmecontrol.c devlist.c firmware.c identify.c logpage.c \ - perftest.c reset.c nvme_util.c + perftest.c reset.c nvme_util.c power.c MAN= nvmecontrol.8 .PATH: ${.CURDIR}/../../sys/dev/nvme Modified: head/sbin/nvmecontrol/nvmecontrol.8 ============================================================================== --- head/sbin/nvmecontrol/nvmecontrol.8 Sat Jan 30 06:12:03 2016 (r295061) +++ head/sbin/nvmecontrol/nvmecontrol.8 Sat Jan 30 06:18:37 2016 (r295062) @@ -70,6 +70,11 @@ .Op Fl f Ar path_to_firmware .Op Fl a .Aq device id +.Nm +.Ic power +.Op Fl l +.Op Fl p power_state +.Op fl w workload_hint .Sh DESCRIPTION NVM Express (NVMe) is a storage protocol standard, for SSDs and other high-speed storage devices over PCI Express. @@ -120,6 +125,18 @@ Activate the firmware in slot 4 of the n .Pp Download the firmware image contained in "/tmp/nvme_firmware" to slot 7 of the nvme0 controller and activate it on the next reset. +.Pp +.Dl nvmecontrol power -l nvme0 +.Pp +List all the current power modes. +.Pp +.Dl nvmecontrol power -p 3 nvme0 +.Pp +Set the current power mode. +.Pp +.Dl nvmecontrol power nvme0 +.Pp +Get the current power mode. .Sh AUTHORS .An -nosplit .Nm Modified: head/sbin/nvmecontrol/nvmecontrol.c ============================================================================== --- head/sbin/nvmecontrol/nvmecontrol.c Sat Jan 30 06:12:03 2016 (r295061) +++ head/sbin/nvmecontrol/nvmecontrol.c Sat Jan 30 06:18:37 2016 (r295062) @@ -58,6 +58,7 @@ static struct nvme_function { {"reset", reset, RESET_USAGE}, {"logpage", logpage, LOGPAGE_USAGE}, {"firmware", firmware, FIRMWARE_USAGE}, + {"power", power, POWER_USAGE}, {NULL, NULL, NULL}, }; Modified: head/sbin/nvmecontrol/nvmecontrol.h ============================================================================== --- head/sbin/nvmecontrol/nvmecontrol.h Sat Jan 30 06:12:03 2016 (r295061) +++ head/sbin/nvmecontrol/nvmecontrol.h Sat Jan 30 06:18:37 2016 (r295062) @@ -55,12 +55,16 @@ #define FIRMWARE_USAGE \ " nvmecontrol firmware [-s slot] [-f path_to_firmware] [-a] \n" +#define POWER_USAGE \ +" nvmecontrol power [-l] [-p new-state [-w workload-hint]] \n" + void devlist(int argc, char *argv[]); void identify(int argc, char *argv[]); void perftest(int argc, char *argv[]); void reset(int argc, char *argv[]); void logpage(int argc, char *argv[]); void firmware(int argc, char *argv[]); +void power(int argc, char *argv[]); int open_dev(const char *str, int *fd, int show_error, int exit_on_error); void parse_ns_str(const char *ns_str, char *ctrlr_str, int *nsid); Added: head/sbin/nvmecontrol/power.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sbin/nvmecontrol/power.c Sat Jan 30 06:18:37 2016 (r295062) @@ -0,0 +1,185 @@ +/*- + * Copyright (c) 2016 Netflix, Inc + * All rights reserved. + * + * 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. + * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 +__FBSDID("$FreeBSD$"); + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "nvmecontrol.h" + +_Static_assert(sizeof(struct nvme_power_state) == 256 / NBBY, + "nvme_power_state size wrong"); + +static void +power_usage(void) +{ + fprintf(stderr, "usage:\n"); + fprintf(stderr, POWER_USAGE); + exit(1); +} + +static void +power_list_one(int i, struct nvme_power_state *nps) +{ + int mpower, apower, ipower; + + mpower = nps->mp; + if (nps->mps == 0) + mpower *= 100; + ipower = nps->idlp; + if (nps->ips == 1) + ipower *= 100; + apower = nps->actp; + if (nps->aps == 1) + apower *= 100; + printf("%2d: %2d.%04dW%c %3d.%03dms %3d.%03dms %2d %2d %2d %2d %2d.%04dW %2d.%04dW %d\n", + i, mpower / 10000, mpower % 10000, + nps->nops ? '*' : ' ', nps->enlat / 1000, nps->enlat % 1000, + nps->exlat / 1000, nps->exlat % 1000, nps->rrt, nps->rrl, + nps->rwt, nps->rwl, ipower / 10000, ipower % 10000, + apower / 10000, apower % 10000, nps->apw); +} + +static void +power_list(struct nvme_controller_data *cdata) +{ + int i; + + printf("\nPower States Supported: %d\n\n", cdata->npss + 1); + printf(" # Max pwr Enter Lat Exit Lat RT RL WT WL Idle Pwr Act Pwr Workloadd\n"); + printf("-- -------- --------- --------- -- -- -- -- -------- -------- --\n"); + for (i = 0; i <= cdata->npss; i++) + power_list_one(i, &cdata->power_state[i]); +} + +static void +power_set(int fd, int power, int workload, int perm) +{ + struct nvme_pt_command pt; + uint32_t p; + + p = perm ? (1u << 31) : 0; + memset(&pt, 0, sizeof(pt)); + pt.cmd.opc = NVME_OPC_SET_FEATURES; + pt.cmd.cdw10 = NVME_FEAT_POWER_MANAGEMENT | p; + pt.cmd.cdw11 = power | (workload << 5); + + if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) + err(1, "set feature power mgmt request failed"); + + if (nvme_completion_is_error(&pt.cpl)) + errx(1, "set feature power mgmt request returned error"); +} + +static void +power_show(int fd) +{ + struct nvme_pt_command pt; + + memset(&pt, 0, sizeof(pt)); + pt.cmd.opc = NVME_OPC_GET_FEATURES; + pt.cmd.cdw10 = NVME_FEAT_POWER_MANAGEMENT; + + if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) + err(1, "set feature power mgmt request failed"); + + if (nvme_completion_is_error(&pt.cpl)) + errx(1, "set feature power mgmt request returned error"); + + printf("Current Power Mode is %d\n", pt.cpl.cdw0); +} + +void +power(int argc, char *argv[]) +{ + struct nvme_controller_data cdata; + int ch, listflag = 0, powerflag = 0, power = 0, fd; + int workload = 0; + char *end; + + while ((ch = getopt(argc, argv, "lp:w:")) != -1) { + switch ((char)ch) { + case 'l': + listflag = 1; + break; + case 'p': + powerflag = 1; + power = strtol(optarg, &end, 0); + if (*end != '\0') { + fprintf(stderr, "Invalid power state number: %s\n", optarg); + power_usage(); + } + break; + case 'w': + workload = strtol(optarg, &end, 0); + if (*end != '\0') { + fprintf(stderr, "Invalid workload hint: %s\n", optarg); + power_usage(); + } + break; + default: + power_usage(); + } + } + + /* Check that a controller was specified. */ + if (optind >= argc) + power_usage(); + + if (listflag && powerflag) { + fprintf(stderr, "Can't set power and list power states\n"); + power_usage(); + } + + open_dev(argv[optind], &fd, 1, 1); + read_controller_data(fd, &cdata); + + if (listflag) { + power_list(&cdata); + goto out; + } + + if (powerflag) { + power_set(fd, power, workload, 0); + goto out; + } + power_show(fd); + +out: + close(fd); + exit(0); +}