From patchwork Thu Mar 14 14:47:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcin Hajkowski X-Patchwork-Id: 51190 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id B8E184D27; Thu, 14 Mar 2019 15:51:52 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 4A28A4C9C for ; Thu, 14 Mar 2019 15:51:48 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Mar 2019 07:51:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,478,1544515200"; d="scan'208";a="151697828" Received: from mhajkowx-mobl.ger.corp.intel.com ([10.104.14.190]) by fmsmga002.fm.intel.com with ESMTP; 14 Mar 2019 07:51:46 -0700 From: Hajkowski To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski Date: Thu, 14 Mar 2019 15:47:51 +0100 Message-Id: <20190314144752.13812-4-marcinx.hajkowski@intel.com> X-Mailer: git-send-email 2.20.1.windows.1 In-Reply-To: <20190314144752.13812-1-marcinx.hajkowski@intel.com> References: <20190314144752.13812-1-marcinx.hajkowski@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH 3/4] power: process incoming confirmation cmds X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Marcin Hajkowski Extend vm_power_guest to check incoming confirmations of messages previously sent to host. Signed-off-by: Marcin Hajkowski --- examples/vm_power_manager/guest_cli/Makefile | 1 + .../guest_cli/vm_power_cli_guest.c | 65 +++++++++++++++---- 2 files changed, 54 insertions(+), 12 deletions(-) diff --git a/examples/vm_power_manager/guest_cli/Makefile b/examples/vm_power_manager/guest_cli/Makefile index a5634eacf..51a5010ab 100644 --- a/examples/vm_power_manager/guest_cli/Makefile +++ b/examples/vm_power_manager/guest_cli/Makefile @@ -18,6 +18,7 @@ SRCS-y := main.c vm_power_cli_guest.c parse.c CFLAGS += -O3 -I$(RTE_SDK)/lib/librte_power/ CFLAGS += $(WERROR_FLAGS) +CFLAGS += -DALLOW_EXPERIMENTAL_API # workaround for a gcc bug with noreturn attribute # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603 diff --git a/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c b/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c index 2d9e7689a..674d9d55f 100644 --- a/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c +++ b/examples/vm_power_manager/guest_cli/vm_power_cli_guest.c @@ -132,6 +132,26 @@ struct cmd_set_cpu_freq_result { cmdline_fixed_string_t cmd; }; +static int +check_response_cmd(unsigned int lcore_id, int *result) +{ + struct channel_packet pkt; + int ret; + + ret = rte_power_guest_channel_receive_msg(&pkt, lcore_id); + if (ret < 0) + return -1; + + if (pkt.command != CPU_POWER_CMD_ACK && + pkt.command != CPU_POWER_CMD_NAK) { + RTE_LOG(DEBUG, POWER, "Not expected command has been received.\n"); + return -1; + } + + *result = (pkt.command == CPU_POWER_CMD_ACK); + return 0; +} + static void cmd_set_cpu_freq_parsed(void *parsed_result, struct cmdline *cl, __attribute__((unused)) void *data) @@ -139,20 +159,31 @@ cmd_set_cpu_freq_parsed(void *parsed_result, struct cmdline *cl, int ret = -1; struct cmd_set_cpu_freq_result *res = parsed_result; - if (!strcmp(res->cmd , "up")) + if (!strcmp(res->cmd, "up")) ret = rte_power_freq_up(res->lcore_id); - else if (!strcmp(res->cmd , "down")) + else if (!strcmp(res->cmd, "down")) ret = rte_power_freq_down(res->lcore_id); - else if (!strcmp(res->cmd , "min")) + else if (!strcmp(res->cmd, "min")) ret = rte_power_freq_min(res->lcore_id); - else if (!strcmp(res->cmd , "max")) + else if (!strcmp(res->cmd, "max")) ret = rte_power_freq_max(res->lcore_id); else if (!strcmp(res->cmd, "enable_turbo")) ret = rte_power_freq_enable_turbo(res->lcore_id); else if (!strcmp(res->cmd, "disable_turbo")) ret = rte_power_freq_disable_turbo(res->lcore_id); - if (ret != 1) + + if (ret != 1) { cmdline_printf(cl, "Error sending message: %s\n", strerror(ret)); + return; + } + int result; + ret = check_response_cmd(res->lcore_id, &result); + if (ret < 0) { + RTE_LOG(DEBUG, POWER, "No confirmation for sent msg received\n"); + } else { + cmdline_printf(cl, "Ack for sent msg received with result: %s.\n", + result == 1 ? "SUCCESS" : "ERROR"); + } } cmdline_parse_token_string_t cmd_set_cpu_freq = @@ -185,16 +216,26 @@ struct cmd_send_policy_result { }; static inline int -send_policy(struct channel_packet *pkt) +send_policy(struct channel_packet *pkt, struct cmdline *cl) { int ret; ret = rte_power_guest_channel_send_msg(pkt, 1); - if (ret == 0) - return 1; - RTE_LOG(DEBUG, POWER, "Error sending message: %s\n", - ret > 0 ? strerror(ret) : "channel not connected"); - return -1; + if (ret < 0) { + RTE_LOG(DEBUG, POWER, "Error sending message: %s\n", + ret > 0 ? strerror(ret) : "channel not connected"); + return -1; + } + + int result; + ret = check_response_cmd(1, &result); + if (ret < 0) { + RTE_LOG(DEBUG, POWER, "No confirmation for sent policy received\n"); + } else { + cmdline_printf(cl, "Ack for sent policy received with result: %s.\n", + result == 1 ? "SUCCESS" : "ERROR"); + } + return 1; } static void @@ -206,7 +247,7 @@ cmd_send_policy_parsed(void *parsed_result, struct cmdline *cl, if (!strcmp(res->cmd, "now")) { printf("Sending Policy down now!\n"); - ret = send_policy(&policy); + ret = send_policy(&policy, cl); } if (ret != 1) cmdline_printf(cl, "Error sending message: %s\n",