examples/vm_power_manager/guest_cli/vm_power_cli_guest.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2014 Intel Corporation
 */


#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <termios.h>

#include <cmdline_rdline.h>
#include <cmdline_parse.h>
#include <cmdline_parse_string.h>
#include <cmdline_parse_num.h>
#include <cmdline_socket.h>
#include <cmdline.h>
#include <rte_log.h>
#include <rte_lcore.h>
#include <rte_ethdev.h>

#include <rte_power.h>
#include <guest_channel.h>

#include "vm_power_cli_guest.h"


#define CHANNEL_PATH "/dev/virtio-ports/virtio.serial.port.poweragent"


#define RTE_LOGTYPE_GUEST_CHANNEL RTE_LOGTYPE_USER1

struct cmd_quit_result {
    cmdline_fixed_string_t quit;
};

union PFID {
    struct rte_ether_addr addr;
    uint64_t pfid;
};

static struct channel_packet policy;

struct channel_packet *
get_policy(void)
{
    return &policy;
}

int
set_policy_mac(int port, int idx)
{
    struct channel_packet *policy;
    union PFID pfid;

    /* Use port MAC address as the vfid */
    rte_eth_macaddr_get(port, &pfid.addr);

    printf("Port %u MAC: %02" PRIx8 ":%02" PRIx8 ":%02" PRIx8 ":"
            "%02" PRIx8 ":%02" PRIx8 ":%02" PRIx8 "\n",
            port,
            pfid.addr.addr_bytes[0], pfid.addr.addr_bytes[1],
            pfid.addr.addr_bytes[2], pfid.addr.addr_bytes[3],
            pfid.addr.addr_bytes[4], pfid.addr.addr_bytes[5]);
    policy = get_policy();
    policy->vfid[idx] = pfid.pfid;
    return 0;
}

void
set_policy_defaults(struct channel_packet *pkt)
{
    set_policy_mac(0, 0);
    pkt->nb_mac_to_monitor = 1;

    pkt->t_boost_status.tbEnabled = false;

    pkt->vcpu_to_control[0] = 0;
    pkt->vcpu_to_control[1] = 1;
    pkt->num_vcpu = 2;
    /* Dummy Population. */
    pkt->traffic_policy.min_packet_thresh = 96000;
    pkt->traffic_policy.avg_max_packet_thresh = 1800000;
    pkt->traffic_policy.max_max_packet_thresh = 2000000;

    pkt->timer_policy.busy_hours[0] = 3;
    pkt->timer_policy.busy_hours[1] = 4;
    pkt->timer_policy.busy_hours[2] = 5;
    pkt->timer_policy.quiet_hours[0] = 11;
    pkt->timer_policy.quiet_hours[1] = 12;
    pkt->timer_policy.quiet_hours[2] = 13;

    pkt->timer_policy.hours_to_use_traffic_profile[0] = 8;
    pkt->timer_policy.hours_to_use_traffic_profile[1] = 10;

    pkt->core_type = CORE_TYPE_VIRTUAL;
    pkt->workload = LOW;
    pkt->policy_to_use = TIME;
    pkt->command = PKT_POLICY;
    strcpy(pkt->vm_name, "ubuntu2");
}

static void cmd_quit_parsed(__attribute__((unused)) void *parsed_result,
                __attribute__((unused)) struct cmdline *cl,
                __attribute__((unused)) void *data)
{
    unsigned lcore_id;

    RTE_LCORE_FOREACH(lcore_id) {
        rte_power_exit(lcore_id);
    }
    cmdline_quit(cl);
}

cmdline_parse_token_string_t cmd_quit_quit =
    TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit");

cmdline_parse_inst_t cmd_quit = {
    .f = cmd_quit_parsed,  /* function to call */
    .data = NULL,      /* 2nd arg of func */
    .help_str = "close the application",
    .tokens = {        /* token list, NULL terminated */
        (void *)&cmd_quit_quit,
        NULL,
    },
};

/* *** VM operations *** */

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)
{
    int ret = -1;
    struct cmd_set_cpu_freq_result *res = parsed_result;

    if (!strcmp(res->cmd , "up"))
        ret = rte_power_freq_up(res->lcore_id);
    else if (!strcmp(res->cmd , "down"))
        ret = rte_power_freq_down(res->lcore_id);
    else if (!strcmp(res->cmd , "min"))
        ret = rte_power_freq_min(res->lcore_id);
    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)
        cmdline_printf(cl, "Error sending message: %s\n", strerror(ret));
}

cmdline_parse_token_string_t cmd_set_cpu_freq =
    TOKEN_STRING_INITIALIZER(struct cmd_set_cpu_freq_result,
            set_cpu_freq, "set_cpu_freq");
cmdline_parse_token_string_t cmd_set_cpu_freq_core_num =
    TOKEN_NUM_INITIALIZER(struct cmd_set_cpu_freq_result,
            lcore_id, UINT8);
cmdline_parse_token_string_t cmd_set_cpu_freq_cmd_cmd =
    TOKEN_STRING_INITIALIZER(struct cmd_set_cpu_freq_result,
            cmd, "up#down#min#max#enable_turbo#disable_turbo");

cmdline_parse_inst_t cmd_set_cpu_freq_set = {
    .f = cmd_set_cpu_freq_parsed,
    .data = NULL,
    .help_str = "set_cpu_freq <core_num> "
            "<up|down|min|max|enable_turbo|disable_turbo>, "
            "adjust the frequency for the specified core.",
    .tokens = {
        (void *)&cmd_set_cpu_freq,
        (void *)&cmd_set_cpu_freq_core_num,
        (void *)&cmd_set_cpu_freq_cmd_cmd,
        NULL,
    },
};

struct cmd_send_policy_result {
    cmdline_fixed_string_t send_policy;
    cmdline_fixed_string_t cmd;
};

static inline int
send_policy(struct channel_packet *pkt)
{
    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;
}

static void
cmd_send_policy_parsed(void *parsed_result, struct cmdline *cl,
               __attribute__((unused)) void *data)
{
    int ret = -1;
    struct cmd_send_policy_result *res = parsed_result;

    if (!strcmp(res->cmd, "now")) {
        printf("Sending Policy down now!\n");
        ret = send_policy(&policy);
    }
    if (ret != 1)
        cmdline_printf(cl, "Error sending message: %s\n",
                strerror(ret));
}

cmdline_parse_token_string_t cmd_send_policy =
    TOKEN_STRING_INITIALIZER(struct cmd_send_policy_result,
            send_policy, "send_policy");
cmdline_parse_token_string_t cmd_send_policy_cmd_cmd =
    TOKEN_STRING_INITIALIZER(struct cmd_send_policy_result,
            cmd, "now");

cmdline_parse_inst_t cmd_send_policy_set = {
    .f = cmd_send_policy_parsed,
    .data = NULL,
    .help_str = "send_policy now",
    .tokens = {
        (void *)&cmd_send_policy,
        (void *)&cmd_send_policy_cmd_cmd,
        NULL,
    },
};

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,
        NULL,
};

void
run_cli(__attribute__((unused)) void *arg)
{
    struct cmdline *cl;

    cl = cmdline_stdin_new(main_ctx, "vmpower(guest)> ");
    if (cl == NULL)
        return;

    cmdline_interact(cl);
    cmdline_stdin_exit(cl);
}