From patchwork Wed Apr 3 17:16:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcin Hajkowski X-Patchwork-Id: 52220 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 BE21D1B567; Wed, 3 Apr 2019 19:16:48 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id B0FF31B513 for ; Wed, 3 Apr 2019 19:16:24 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Apr 2019 10:16:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,305,1549958400"; d="scan'208";a="161086745" Received: from mhajkowx-mobl.ger.corp.intel.com ([10.104.116.180]) by fmsmga001.fm.intel.com with ESMTP; 03 Apr 2019 10:16:23 -0700 From: Hajkowski To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski Date: Wed, 3 Apr 2019 19:16:00 +0200 Message-Id: <20190403171601.9788-5-marcinx.hajkowski@intel.com> X-Mailer: git-send-email 2.20.1.windows.1 In-Reply-To: <20190403171601.9788-1-marcinx.hajkowski@intel.com> References: <20190403171601.9788-1-marcinx.hajkowski@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH 4/4] power: add cmd to query CPU freq. 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 Add command and related logic to query CPU frequencies either for specified CPU or all cores. Signed-off-by: Marcin Hajkowski Acked-by: Lee Daly --- .../guest_cli/vm_power_cli_guest.c | 150 ++++++++++++++++-- 1 file changed, 138 insertions(+), 12 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 af49dfef8..d1b4ac2aa 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 @@ -99,9 +99,9 @@ set_policy_defaults(struct channel_packet *pkt) strcpy(pkt->vm_name, "ubuntu2"); } -static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result, - __attribute__((unused)) struct cmdline *cl, - __attribute__((unused)) void *data) +static void cmd_quit_parsed(__rte_unused void *parsed_result, + __rte_unused struct cmdline *cl, + __rte_unused void *data) { unsigned lcore_id; @@ -126,10 +126,126 @@ cmdline_parse_inst_t cmd_quit = { /* *** VM operations *** */ -struct cmd_set_cpu_freq_result { - cmdline_fixed_string_t set_cpu_freq; - uint8_t lcore_id; - cmdline_fixed_string_t cmd; +struct cmd_freq_list_result { + cmdline_fixed_string_t query_freq; + cmdline_fixed_string_t cpu_num; +}; + +static int +query_freq_list(struct channel_packet *pkt, unsigned int lcore_id) +{ + int ret; + ret = rte_power_guest_channel_send_msg(pkt, lcore_id); + if (ret < 0) { + RTE_LOG(ERR, GUEST_CLI, "Error sending message.\n"); + return -1; + } + return 0; +} + +static int +receive_freq_list(struct channel_packet_freq_list *pkt_freq_list, + unsigned int lcore_id) +{ + int ret; + + ret = rte_power_guest_channel_receive_msg(pkt_freq_list, + sizeof(struct channel_packet_freq_list), + lcore_id); + if (ret < 0) { + RTE_LOG(ERR, GUEST_CLI, "Error receiving message.\n"); + return -1; + } + if (pkt_freq_list->command != CPU_POWER_FREQ_LIST) { + RTE_LOG(ERR, GUEST_CLI, "Unexpected message received.\n"); + return -1; + } + return 0; +} + +static void +cmd_query_freq_list_parsed(void *parsed_result, + __rte_unused struct cmdline *cl, + __rte_unused void *data) +{ + struct cmd_freq_list_result *res = parsed_result; + unsigned int lcore_id; + struct channel_packet_freq_list pkt_freq_list; + struct channel_packet pkt; + bool query_list = false; + int ret; + char *ep; + + memset(&pkt, 0, sizeof(struct channel_packet)); + memset(&pkt_freq_list, 0, sizeof(struct channel_packet_freq_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_FREQ_LIST; + strcpy(pkt.vm_name, policy.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_FREQ; + strcpy(pkt.vm_name, policy.vm_name); + pkt.resource_id = lcore_id; + } + + ret = query_freq_list(&pkt, lcore_id); + if (ret < 0) { + cmdline_printf(cl, "Error during sending frequency list query.\n"); + return; + } + + ret = receive_freq_list(&pkt_freq_list, lcore_id); + if (ret < 0) { + cmdline_printf(cl, "Error during frequency list reception.\n"); + return; + } + if (query_list) { + unsigned int i; + for (i = 0; i < pkt_freq_list.num_vcpu; ++i) + cmdline_printf(cl, "Frequency of [%d] vcore is %d.\n", + i, + pkt_freq_list.freq_list[i]); + } else { + cmdline_printf(cl, "Frequency of [%d] vcore is %d.\n", + lcore_id, + pkt_freq_list.freq_list[lcore_id]); + } +} + +cmdline_parse_token_string_t cmd_query_freq_token = + TOKEN_STRING_INITIALIZER(struct cmd_freq_list_result, query_freq, "query_cpu_freq"); +cmdline_parse_token_string_t cmd_query_freq_cpu_num_token = + TOKEN_STRING_INITIALIZER(struct cmd_freq_list_result, cpu_num, NULL); + +cmdline_parse_inst_t cmd_query_freq_list = { + .f = cmd_query_freq_list_parsed, /* function to call */ + .data = NULL, /* 2nd arg of func */ + .help_str = "query_cpu_freq |all, request" + " information regarding virtual core frequencies." + " The keyword 'all' will query list of all vcores for the VM", + .tokens = { /* token list, NULL terminated */ + (void *)&cmd_query_freq_token, + (void *)&cmd_query_freq_cpu_num_token, + NULL, + }, }; static int @@ -138,7 +254,10 @@ 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); + ret = rte_power_guest_channel_receive_msg(&pkt, + sizeof(pkt), + lcore_id); + if (ret < 0) return -1; @@ -150,16 +269,22 @@ check_response_cmd(unsigned int lcore_id, int *result) *result = 0; break; default: - RTE_LOG(DEBUG, GUEST_CLI, "Not expected command has been received.\n"); + RTE_LOG(ERR, GUEST_CLI, "Not expected command has been received.\n"); return -1; } return 0; } +struct cmd_set_cpu_freq_result { + cmdline_fixed_string_t set_cpu_freq; + uint8_t lcore_id; + cmdline_fixed_string_t cmd; +}; + static void cmd_set_cpu_freq_parsed(void *parsed_result, struct cmdline *cl, - __attribute__((unused)) void *data) + __rte_unused void *data) { int ret = -1; struct cmd_set_cpu_freq_result *res = parsed_result; @@ -245,7 +370,7 @@ send_policy(struct channel_packet *pkt, struct cmdline *cl) static void cmd_send_policy_parsed(void *parsed_result, struct cmdline *cl, - __attribute__((unused)) void *data) + __rte_unused void *data) { int ret = -1; struct cmd_send_policy_result *res = parsed_result; @@ -281,11 +406,12 @@ cmdline_parse_ctx_t main_ctx[] = { (cmdline_parse_inst_t *)&cmd_quit, (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, NULL, }; void -run_cli(__attribute__((unused)) void *arg) +run_cli(__rte_unused void *arg) { struct cmdline *cl;