From patchwork Tue Apr 2 08:21:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcin Hajkowski X-Patchwork-Id: 52058 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 2F8C44C90; Tue, 2 Apr 2019 10:22:23 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id E893D2E81; Tue, 2 Apr 2019 10:22:19 +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 orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Apr 2019 01:22:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,298,1549958400"; d="scan'208";a="160565130" Received: from mhajkowx-mobl.ger.corp.intel.com ([10.104.12.166]) by fmsmga001.fm.intel.com with ESMTP; 02 Apr 2019 01:22:18 -0700 From: Hajkowski To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski , stable@dpdk.org Date: Tue, 2 Apr 2019 10:21:18 +0200 Message-Id: <20190402082121.5472-2-marcinx.hajkowski@intel.com> X-Mailer: git-send-email 2.20.1.windows.1 In-Reply-To: <20190402082121.5472-1-marcinx.hajkowski@intel.com> References: <20190321105506.6656-1-marcinx.hajkowski@intel.com> <20190402082121.5472-1-marcinx.hajkowski@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v4 1/4] power: fix invalid socket indicator value 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 Currently 0 is being used for not connected slot indication. This is not consistent with linux doc which identifies 0 as valid (connected) slot, thus modification was done to change it. Fixes: cd0d5547 ("power: vm communication channels in guest") Cc: stable@dpdk.org Signed-off-by: Marcin Hajkowski --- lib/librte_power/guest_channel.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/lib/librte_power/guest_channel.c b/lib/librte_power/guest_channel.c index c17ea46b4..9cf7d2cb2 100644 --- a/lib/librte_power/guest_channel.c +++ b/lib/librte_power/guest_channel.c @@ -19,7 +19,7 @@ #define RTE_LOGTYPE_GUEST_CHANNEL RTE_LOGTYPE_USER1 -static int global_fds[RTE_MAX_LCORE]; +static int global_fds[RTE_MAX_LCORE] = { [0 ... RTE_MAX_LCORE-1] = -1 }; int guest_channel_host_connect(const char *path, unsigned int lcore_id) @@ -35,7 +35,7 @@ guest_channel_host_connect(const char *path, unsigned int lcore_id) return -1; } /* check if path is already open */ - if (global_fds[lcore_id] != 0) { + if (global_fds[lcore_id] != -1) { RTE_LOG(ERR, GUEST_CHANNEL, "Channel(%u) is already open with fd %d\n", lcore_id, global_fds[lcore_id]); return -1; @@ -84,7 +84,7 @@ guest_channel_host_connect(const char *path, unsigned int lcore_id) return 0; error: close(fd); - global_fds[lcore_id] = 0; + global_fds[lcore_id] = -1; return -1; } @@ -100,7 +100,7 @@ guest_channel_send_msg(struct channel_packet *pkt, unsigned int lcore_id) return -1; } - if (global_fds[lcore_id] == 0) { + if (global_fds[lcore_id] < 0) { RTE_LOG(ERR, GUEST_CHANNEL, "Channel is not connected\n"); return -1; } @@ -134,8 +134,8 @@ guest_channel_host_disconnect(unsigned int lcore_id) lcore_id, RTE_MAX_LCORE-1); return; } - if (global_fds[lcore_id] == 0) + if (global_fds[lcore_id] < 0) return; close(global_fds[lcore_id]); - global_fds[lcore_id] = 0; + global_fds[lcore_id] = -1; } From patchwork Tue Apr 2 08:21:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcin Hajkowski X-Patchwork-Id: 52059 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 4EAA64C96; Tue, 2 Apr 2019 10:22:25 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 234224C8D for ; Tue, 2 Apr 2019 10:22:22 +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 orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Apr 2019 01:22:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,298,1549958400"; d="scan'208";a="160565149" Received: from mhajkowx-mobl.ger.corp.intel.com ([10.104.12.166]) by fmsmga001.fm.intel.com with ESMTP; 02 Apr 2019 01:22:19 -0700 From: Hajkowski To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski Date: Tue, 2 Apr 2019 10:21:19 +0200 Message-Id: <20190402082121.5472-3-marcinx.hajkowski@intel.com> X-Mailer: git-send-email 2.20.1.windows.1 In-Reply-To: <20190402082121.5472-1-marcinx.hajkowski@intel.com> References: <20190321105506.6656-1-marcinx.hajkowski@intel.com> <20190402082121.5472-1-marcinx.hajkowski@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v4 2/4] power: extend guest channel api for reading 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 Added new experimental API rte_power_guest_channel_receive_msg which gives possibility to receive messages send to guest. Signed-off-by: Marcin Hajkowski --- lib/librte_power/channel_commands.h | 5 +++ lib/librte_power/guest_channel.c | 60 ++++++++++++++++++++++++++ lib/librte_power/guest_channel.h | 35 +++++++++++++++ lib/librte_power/rte_power_version.map | 1 + 4 files changed, 101 insertions(+) diff --git a/lib/librte_power/channel_commands.h b/lib/librte_power/channel_commands.h index e7b93a797..33fd53a6d 100644 --- a/lib/librte_power/channel_commands.h +++ b/lib/librte_power/channel_commands.h @@ -28,6 +28,11 @@ extern "C" { #define CPU_POWER_SCALE_MIN 4 #define CPU_POWER_ENABLE_TURBO 5 #define CPU_POWER_DISABLE_TURBO 6 + +/* Generic Power Command Response */ +#define CPU_POWER_CMD_ACK 1 +#define CPU_POWER_CMD_NACK 2 + #define HOURS 24 #define MAX_VFS 10 diff --git a/lib/librte_power/guest_channel.c b/lib/librte_power/guest_channel.c index 9cf7d2cb2..888423891 100644 --- a/lib/librte_power/guest_channel.c +++ b/lib/librte_power/guest_channel.c @@ -10,6 +10,7 @@ #include #include #include +#include #include @@ -19,6 +20,9 @@ #define RTE_LOGTYPE_GUEST_CHANNEL RTE_LOGTYPE_USER1 +/* Timeout for incoming message in milliseconds. */ +#define TIMEOUT 10 + static int global_fds[RTE_MAX_LCORE] = { [0 ... RTE_MAX_LCORE-1] = -1 }; int @@ -125,6 +129,62 @@ int rte_power_guest_channel_send_msg(struct channel_packet *pkt, return guest_channel_send_msg(pkt, lcore_id); } +int power_guest_channel_read_msg(struct channel_packet *pkt, + unsigned int lcore_id) +{ + int ret; + struct pollfd fds; + void *buffer = pkt; + int buffer_len = sizeof(*pkt); + + fds.fd = global_fds[lcore_id]; + fds.events = POLLIN; + + ret = poll(&fds, 1, TIMEOUT); + if (ret == 0) { + RTE_LOG(DEBUG, GUEST_CHANNEL, "Timeout occurred during poll function.\n"); + return -1; + } else if (ret < 0) { + RTE_LOG(ERR, GUEST_CHANNEL, "Error occurred during poll function: %s\n", + strerror(ret)); + return -1; + } + + if (lcore_id >= RTE_MAX_LCORE) { + RTE_LOG(ERR, GUEST_CHANNEL, "Channel(%u) is out of range 0...%d\n", + lcore_id, RTE_MAX_LCORE-1); + return -1; + } + + if (global_fds[lcore_id] < 0) { + RTE_LOG(ERR, GUEST_CHANNEL, "Channel is not connected\n"); + return -1; + } + + while (buffer_len > 0) { + ret = read(global_fds[lcore_id], + buffer, buffer_len); + if (ret < 0) { + if (errno == EINTR) + continue; + return -1; + } + if (ret == 0) { + RTE_LOG(ERR, GUEST_CHANNEL, "Expected more data, but connection has been closed.\n"); + return -1; + } + buffer = (char *)buffer + ret; + buffer_len -= ret; + } + + return 0; +} + +int rte_power_guest_channel_receive_msg(struct channel_packet *pkt, + unsigned int lcore_id) +{ + return power_guest_channel_read_msg(pkt, lcore_id); +} void guest_channel_host_disconnect(unsigned int lcore_id) diff --git a/lib/librte_power/guest_channel.h b/lib/librte_power/guest_channel.h index 373d39898..7c385df39 100644 --- a/lib/librte_power/guest_channel.h +++ b/lib/librte_power/guest_channel.h @@ -68,6 +68,41 @@ int guest_channel_send_msg(struct channel_packet *pkt, unsigned int lcore_id); int rte_power_guest_channel_send_msg(struct channel_packet *pkt, unsigned int lcore_id); +/** + * Read a message contained in pkt over the Virtio-Serial + * from the host endpoint. + * + * @param pkt + * Pointer to a populated struct channel_packet + * + * @param lcore_id + * lcore_id. + * + * @return + * - 0 on success. + * - Negative on error. + */ +int power_guest_channel_read_msg(struct channel_packet *pkt, + unsigned int lcore_id); + +/** + * Receive a message contained in pkt over the Virtio-Serial + * from the host endpoint. + * + * @param pkt + * Pointer to a populated struct channel_packet + * + * @param lcore_id + * lcore_id. + * + * @return + * - 0 on success. + * - Negative on error. + */ +int __rte_experimental +rte_power_guest_channel_receive_msg(struct channel_packet *pkt, + unsigned int lcore_id); + #ifdef __cplusplus } #endif diff --git a/lib/librte_power/rte_power_version.map b/lib/librte_power/rte_power_version.map index 042917360..69f5ea3f4 100644 --- a/lib/librte_power/rte_power_version.map +++ b/lib/librte_power/rte_power_version.map @@ -44,4 +44,5 @@ EXPERIMENTAL { rte_power_empty_poll_stat_update; rte_power_poll_stat_fetch; rte_power_poll_stat_update; + rte_power_guest_channel_receive_msg; }; From patchwork Tue Apr 2 08:21:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcin Hajkowski X-Patchwork-Id: 52060 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 61D564C8F; Tue, 2 Apr 2019 10:22:27 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 5D2784C99 for ; Tue, 2 Apr 2019 10:22:25 +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 orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Apr 2019 01:22:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,298,1549958400"; d="scan'208";a="160565160" Received: from mhajkowx-mobl.ger.corp.intel.com ([10.104.12.166]) by fmsmga001.fm.intel.com with ESMTP; 02 Apr 2019 01:22:22 -0700 From: Hajkowski To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski Date: Tue, 2 Apr 2019 10:21:20 +0200 Message-Id: <20190402082121.5472-4-marcinx.hajkowski@intel.com> X-Mailer: git-send-email 2.20.1.windows.1 In-Reply-To: <20190402082121.5472-1-marcinx.hajkowski@intel.com> References: <20190321105506.6656-1-marcinx.hajkowski@intel.com> <20190402082121.5472-1-marcinx.hajkowski@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v4 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 | 72 +++++++++++++++---- 2 files changed, 60 insertions(+), 13 deletions(-) diff --git a/examples/vm_power_manager/guest_cli/Makefile b/examples/vm_power_manager/guest_cli/Makefile index e35a68d0f..67cf08193 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..af49dfef8 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 @@ -27,7 +27,7 @@ #define CHANNEL_PATH "/dev/virtio-ports/virtio.serial.port.poweragent" -#define RTE_LOGTYPE_GUEST_CHANNEL RTE_LOGTYPE_USER1 +#define RTE_LOGTYPE_GUEST_CLI RTE_LOGTYPE_USER1 struct cmd_quit_result { cmdline_fixed_string_t quit; @@ -132,6 +132,31 @@ 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; + + switch (pkt.command) { + case(CPU_POWER_CMD_ACK): + *result = 1; + break; + case(CPU_POWER_CMD_NACK): + *result = 0; + break; + default: + RTE_LOG(DEBUG, GUEST_CLI, "Not expected command has been received.\n"); + return -1; + } + + return 0; +} + static void cmd_set_cpu_freq_parsed(void *parsed_result, struct cmdline *cl, __attribute__((unused)) void *data) @@ -139,20 +164,31 @@ 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, GUEST_CLI, "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 +221,26 @@ 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, GUEST_CLI, "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, GUEST_CLI, "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 +252,7 @@ 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", From patchwork Tue Apr 2 08:21:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcin Hajkowski X-Patchwork-Id: 52061 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 277E54CC0; Tue, 2 Apr 2019 10:22:29 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 25E013798 for ; Tue, 2 Apr 2019 10:22:25 +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 orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Apr 2019 01:22:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,298,1549958400"; d="scan'208";a="160565179" Received: from mhajkowx-mobl.ger.corp.intel.com ([10.104.12.166]) by fmsmga001.fm.intel.com with ESMTP; 02 Apr 2019 01:22:24 -0700 From: Hajkowski To: david.hunt@intel.com Cc: dev@dpdk.org, Marcin Hajkowski Date: Tue, 2 Apr 2019 10:21:21 +0200 Message-Id: <20190402082121.5472-5-marcinx.hajkowski@intel.com> X-Mailer: git-send-email 2.20.1.windows.1 In-Reply-To: <20190402082121.5472-1-marcinx.hajkowski@intel.com> References: <20190321105506.6656-1-marcinx.hajkowski@intel.com> <20190402082121.5472-1-marcinx.hajkowski@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v4 4/4] power: send confirmation cmd to vm guest 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 Use new guest channel API to send confirmation message for received power command. Signed-off-by: Marcin Hajkowski --- examples/vm_power_manager/channel_monitor.c | 68 +++++++++++++++++++-- 1 file changed, 62 insertions(+), 6 deletions(-) diff --git a/examples/vm_power_manager/channel_monitor.c b/examples/vm_power_manager/channel_monitor.c index 7892d75de..ed580b36a 100644 --- a/examples/vm_power_manager/channel_monitor.c +++ b/examples/vm_power_manager/channel_monitor.c @@ -627,6 +627,41 @@ apply_policy(struct policy *pol) apply_workload_profile(pol); } +static int +write_binary_packet(struct channel_packet *pkt, struct channel_info *chan_info) +{ + int ret, buffer_len = sizeof(*pkt); + void *buffer = pkt; + + if (chan_info->fd < 0) { + RTE_LOG(ERR, CHANNEL_MONITOR, "Channel is not connected\n"); + return -1; + } + + while (buffer_len > 0) { + ret = write(chan_info->fd, buffer, buffer_len); + if (ret == -1) { + if (errno == EINTR) + continue; + RTE_LOG(ERR, CHANNEL_MONITOR, "Write function failed due to %s.\n", + strerror(errno)); + return -1; + } + buffer = (char *)buffer + ret; + buffer_len -= ret; + } + return 0; +} + +static int +send_ack_for_received_cmd(struct channel_packet *pkt, + struct channel_info *chan_info, + uint32_t command) +{ + pkt->command = command; + return write_binary_packet(pkt, chan_info); +} + static int process_request(struct channel_packet *pkt, struct channel_info *chan_info) { @@ -650,33 +685,54 @@ process_request(struct channel_packet *pkt, struct channel_info *chan_info) RTE_LOG(DEBUG, CHANNEL_MONITOR, "Processing requested cmd for cpu:%d\n", core_num); + bool valid_unit = true; + int scale_res; + switch (pkt->unit) { case(CPU_POWER_SCALE_MIN): - power_manager_scale_core_min(core_num); + scale_res = power_manager_scale_core_min(core_num); break; case(CPU_POWER_SCALE_MAX): - power_manager_scale_core_max(core_num); + scale_res = power_manager_scale_core_max(core_num); break; case(CPU_POWER_SCALE_DOWN): - power_manager_scale_core_down(core_num); + scale_res = power_manager_scale_core_down(core_num); break; case(CPU_POWER_SCALE_UP): - power_manager_scale_core_up(core_num); + scale_res = power_manager_scale_core_up(core_num); break; case(CPU_POWER_ENABLE_TURBO): - power_manager_enable_turbo_core(core_num); + scale_res = power_manager_enable_turbo_core(core_num); break; case(CPU_POWER_DISABLE_TURBO): - power_manager_disable_turbo_core(core_num); + scale_res = power_manager_disable_turbo_core(core_num); break; default: + valid_unit = false; break; } + + if (valid_unit) { + ret = send_ack_for_received_cmd(pkt, + chan_info, + scale_res > 0 ? + CPU_POWER_CMD_ACK : + CPU_POWER_CMD_NACK); + if (ret < 0) + RTE_LOG(DEBUG, CHANNEL_MONITOR, "Error during sending ack command.\n"); + } else + RTE_LOG(DEBUG, CHANNEL_MONITOR, "Unexpected unit type.\n"); + } if (pkt->command == PKT_POLICY) { RTE_LOG(INFO, CHANNEL_MONITOR, "Processing policy request %s\n", pkt->vm_name); + int ret = send_ack_for_received_cmd(pkt, + chan_info, + CPU_POWER_CMD_ACK); + if (ret < 0) + RTE_LOG(DEBUG, CHANNEL_MONITOR, "Error during sending ack command.\n"); update_policy(pkt); policy_is_set = 1; }