From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id E156EA2EDB for ; Mon, 30 Sep 2019 15:01:25 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 159B458C4; Mon, 30 Sep 2019 15:01:06 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 1A1F944C3 for ; Mon, 30 Sep 2019 15:00:58 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Sep 2019 06:00:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,567,1559545200"; d="scan'208";a="220644330" Received: from silpixa00399952.ir.intel.com (HELO silpixa00399952.ger.corp.intel.com) ([10.237.222.38]) by fmsmga002.fm.intel.com with ESMTP; 30 Sep 2019 06:00:57 -0700 From: David Hunt To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski Date: Mon, 30 Sep 2019 14:00:43 +0100 Message-Id: <20190930130043.2885-4-david.hunt@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190930130043.2885-1-david.hunt@intel.com> References: <20190530161517.11916-2-marcinx.hajkowski@intel.com> <20190930130043.2885-1-david.hunt@intel.com> Subject: [dpdk-dev] [PATCH v2 3/3] examples/power_guest: send request for specified core capabilities 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 Send request to power manager for core id provided by user to get related capabilities. Signed-off-by: Marcin Hajkowski Tested-by: David Hunt Acked-by: Lee Daly --- .../guest_cli/vm_power_cli_guest.c | 119 +++++++++++++++++- 1 file changed, 117 insertions(+), 2 deletions(-) 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 0bdb2d0d0..096ecdc04 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 @@ -132,7 +132,7 @@ struct cmd_freq_list_result { }; static int -query_freq_list(struct channel_packet *pkt, unsigned int lcore_id) +query_data(struct channel_packet *pkt, unsigned int lcore_id) { int ret; ret = rte_power_guest_channel_send_msg(pkt, lcore_id); @@ -206,7 +206,7 @@ cmd_query_freq_list_parsed(void *parsed_result, pkt.resource_id = lcore_id; } - ret = query_freq_list(&pkt, lcore_id); + ret = query_data(&pkt, lcore_id); if (ret < 0) { cmdline_printf(cl, "Error during sending frequency list query.\n"); return; @@ -248,6 +248,120 @@ cmdline_parse_inst_t cmd_query_freq_list = { }, }; +struct cmd_query_caps_result { + cmdline_fixed_string_t query_caps; + cmdline_fixed_string_t cpu_num; +}; + +static int +receive_capabilities(struct channel_packet_caps_list *pkt_caps_list, + unsigned int lcore_id) +{ + int ret; + + ret = rte_power_guest_channel_receive_msg(pkt_caps_list, + sizeof(struct channel_packet_caps_list), + lcore_id); + if (ret < 0) { + RTE_LOG(ERR, GUEST_CLI, "Error receiving message.\n"); + return -1; + } + if (pkt_caps_list->command != CPU_POWER_CAPS_LIST) { + RTE_LOG(ERR, GUEST_CLI, "Unexpected message received.\n"); + return -1; + } + return 0; +} + +static void +cmd_query_caps_list_parsed(void *parsed_result, + __rte_unused struct cmdline *cl, + __rte_unused void *data) +{ + struct cmd_query_caps_result *res = parsed_result; + unsigned int lcore_id; + struct channel_packet_caps_list pkt_caps_list; + struct channel_packet pkt; + bool query_list = false; + int ret; + char *ep; + + memset(&pkt, 0, sizeof(struct channel_packet)); + memset(&pkt_caps_list, 0, sizeof(struct channel_packet_caps_list)); + + if (!strcmp(res->cpu_num, "all")) { + + /* Get first enabled lcore. */ + lcore_id = rte_get_next_lcore(-1, + 0, + 0); + if (lcore_id == RTE_MAX_LCORE) { + cmdline_printf(cl, "Enabled core not found.\n"); + return; + } + + pkt.command = CPU_POWER_QUERY_CAPS_LIST; + strlcpy(pkt.vm_name, policy.vm_name, sizeof(pkt.vm_name)); + query_list = true; + } else { + errno = 0; + lcore_id = (unsigned int)strtol(res->cpu_num, &ep, 10); + if (errno != 0 || lcore_id >= MAX_VCPU_PER_VM || + ep == res->cpu_num) { + cmdline_printf(cl, "Invalid parameter provided.\n"); + return; + } + pkt.command = CPU_POWER_QUERY_CAPS; + strlcpy(pkt.vm_name, policy.vm_name, sizeof(pkt.vm_name)); + pkt.resource_id = lcore_id; + } + + ret = query_data(&pkt, lcore_id); + if (ret < 0) { + cmdline_printf(cl, "Error during sending capabilities query.\n"); + return; + } + + ret = receive_capabilities(&pkt_caps_list, lcore_id); + if (ret < 0) { + cmdline_printf(cl, "Error during capabilities reception.\n"); + return; + } + if (query_list) { + unsigned int i; + for (i = 0; i < pkt_caps_list.num_vcpu; ++i) + cmdline_printf(cl, "Capabilities of [%d] vcore are:" + " turbo possibility: %ld, is priority core: %ld.\n", + i, + pkt_caps_list.turbo[i], + pkt_caps_list.priority[i]); + } else { + cmdline_printf(cl, "Capabilities of [%d] vcore are:" + " turbo possibility: %ld, is priority core: %ld.\n", + lcore_id, + pkt_caps_list.turbo[lcore_id], + pkt_caps_list.priority[lcore_id]); + } +} + +cmdline_parse_token_string_t cmd_query_caps_token = + TOKEN_STRING_INITIALIZER(struct cmd_query_caps_result, query_caps, "query_cpu_caps"); +cmdline_parse_token_string_t cmd_query_caps_cpu_num_token = + TOKEN_STRING_INITIALIZER(struct cmd_query_caps_result, cpu_num, NULL); + +cmdline_parse_inst_t cmd_query_caps_list = { + .f = cmd_query_caps_list_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "query_cpu_caps |all, request" + " information regarding virtual core capabilities." + " The keyword 'all' will query list of all vcores for the VM", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_query_caps_token, + (void *)&cmd_query_caps_cpu_num_token, + NULL, + }, +}; + static int check_response_cmd(unsigned int lcore_id, int *result) { @@ -408,6 +522,7 @@ cmdline_parse_ctx_t main_ctx[] = { (cmdline_parse_inst_t *)&cmd_send_policy_set, (cmdline_parse_inst_t *)&cmd_set_cpu_freq_set, (cmdline_parse_inst_t *)&cmd_query_freq_list, + (cmdline_parse_inst_t *)&cmd_query_caps_list, NULL, }; -- 2.17.1