From patchwork Mon Sep 22 18:34:33 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alan Carew X-Patchwork-Id: 442 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 58C9CB3AF; Mon, 22 Sep 2014 20:29:44 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 9C11868B8 for ; Mon, 22 Sep 2014 20:29:38 +0200 (CEST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 22 Sep 2014 11:35:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,573,1406617200"; d="scan'208";a="606714456" Received: from sie-lab-212-143.ir.intel.com (HELO silpixa00385294.ir.intel.com) ([10.237.212.143]) by orsmga002.jf.intel.com with ESMTP; 22 Sep 2014 11:35:21 -0700 From: Alan Carew To: dev@dpdk.org Date: Mon, 22 Sep 2014 19:34:33 +0100 Message-Id: <1411410879-28872-5-git-send-email-alan.carew@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1411410879-28872-1-git-send-email-alan.carew@intel.com> References: <1411410879-28872-1-git-send-email-alan.carew@intel.com> Subject: [dpdk-dev] [PATCH 04/10] CPU Frequency Power Management(Host). X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" A wrapper around librte_power, providing locking around the non-threadsafe library, allowing for frequency changes based on core masks and core numbers from both the CLI thread and epoll monitor thread. Signed-off-by: Alan Carew --- examples/vm_power_manager/Makefile | 57 +++++++++++++++++++ examples/vm_power_manager/main.c | 113 +++++++++++++++++++++++++++++++++++++ examples/vm_power_manager/main.h | 52 +++++++++++++++++ 3 files changed, 222 insertions(+) create mode 100644 examples/vm_power_manager/Makefile create mode 100644 examples/vm_power_manager/main.c create mode 100644 examples/vm_power_manager/main.h diff --git a/examples/vm_power_manager/Makefile b/examples/vm_power_manager/Makefile new file mode 100644 index 0000000..a2f00ea --- /dev/null +++ b/examples/vm_power_manager/Makefile @@ -0,0 +1,57 @@ +# BSD LICENSE +# +# Copyright(c) 2010-2014 Intel Corporation. All rights reserved. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * 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. +# * Neither the name of Intel Corporation nor the names of its +# contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT +# OWNER 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. + +ifeq ($(RTE_SDK),) +$(error "Please define RTE_SDK environment variable") +endif + +# Default target, can be overriden by command line or environment +RTE_TARGET ?= x86_64-default-linuxapp-gcc + +include $(RTE_SDK)/mk/rte.vars.mk + +# binary name +APP = vm_power_mgr + +# all source are stored in SRCS-y +SRCS-y := main.c vm_power_cli.c power_manager.c channel_manager.c +SRCS-y += channel_monitor.c + +CFLAGS += -O3 -lvirt -I$(RTE_SDK)/lib/librte_power_vm/ +CFLAGS += $(WERROR_FLAGS) + +# workaround for a gcc bug with noreturn attribute +# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603 +ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y) +CFLAGS_main.o += -Wno-return-type +endif + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/examples/vm_power_manager/main.c b/examples/vm_power_manager/main.c new file mode 100644 index 0000000..fdb9e73 --- /dev/null +++ b/examples/vm_power_manager/main.c @@ -0,0 +1,113 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT + * OWNER 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "channel_manager.h" +#include "channel_monitor.h" +#include "power_manager.h" +#include "vm_power_cli.h" +#include "main.h" + +static int +run_monitor(__attribute__((unused)) void *arg) +{ + if (channel_manager_init(DEFAULT_HV_PATH) < 0) { + printf("Unable to initialize channel manager\n"); + return -1; + } + if (channel_monitor_init() < 0) { + printf("Unable to initialize channel monitor\n"); + return -1; + } + run_channel_monitor(); + return 0; +} + +static void +sig_handler(int signo) +{ + printf("Received signal %d, exiting...\n", signo); + channel_monitor_exit(); + channel_manager_exit(); + power_manager_exit(); + +} + +int +MAIN(int argc, char **argv) +{ + int ret; + unsigned lcore_id; + + ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_panic("Cannot init EAL\n"); + + signal(SIGINT, sig_handler); + signal(SIGTERM, sig_handler); + + lcore_id = rte_get_next_lcore(-1, 1, 0); + if (lcore_id == RTE_MAX_LCORE) { + RTE_LOG(ERR, EAL, "A minimum of two cores are required to run " + "application\n"); + return 0; + } + rte_eal_remote_launch(run_monitor, NULL, lcore_id); + + run_cli(NULL); + + rte_eal_mp_wait_lcore(); + return 0; +} diff --git a/examples/vm_power_manager/main.h b/examples/vm_power_manager/main.h new file mode 100644 index 0000000..7b4c3da --- /dev/null +++ b/examples/vm_power_manager/main.h @@ -0,0 +1,52 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT + * OWNER 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. + */ + +#ifndef _MAIN_H_ +#define _MAIN_H_ + +#ifdef RTE_EXEC_ENV_BAREMETAL +#define MAIN _main +#else +#define MAIN main +#endif + +int MAIN(int argc, char **argv); + +#endif /* _MAIN_H_ */ + +#ifndef MAIN_H_ +#define MAIN_H_ + + + +#endif /* MAIN_H_ */