DPDK  22.11.0
examples/vm_power_manager/vm_power_cli.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <termios.h>
#include <errno.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 "vm_power_cli.h"
#include "channel_manager.h"
#include "channel_monitor.h"
#include "power_manager.h"
struct cmd_quit_result {
cmdline_fixed_string_t quit;
};
static void cmd_quit_parsed(__rte_unused void *parsed_result,
struct cmdline *cl,
__rte_unused void *data)
{
channel_monitor_exit();
channel_manager_exit();
power_manager_exit();
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_show_vm_result {
cmdline_fixed_string_t show_vm;
cmdline_fixed_string_t vm_name;
};
static void
cmd_show_vm_parsed(void *parsed_result, struct cmdline *cl,
__rte_unused void *data)
{
struct cmd_show_vm_result *res = parsed_result;
struct vm_info info;
unsigned i;
if (get_info_vm(res->vm_name, &info) != 0)
return;
cmdline_printf(cl, "VM: '%s', status = ", info.name);
if (info.status == CHANNEL_MGR_VM_ACTIVE)
cmdline_printf(cl, "ACTIVE\n");
else
cmdline_printf(cl, "INACTIVE\n");
cmdline_printf(cl, "Channels %u\n", info.num_channels);
for (i = 0; i < info.num_channels; i++) {
cmdline_printf(cl, " [%u]: %s, status = ", i,
info.channels[i].channel_path);
switch (info.channels[i].status) {
case CHANNEL_MGR_CHANNEL_CONNECTED:
cmdline_printf(cl, "CONNECTED\n");
break;
case CHANNEL_MGR_CHANNEL_DISCONNECTED:
cmdline_printf(cl, "DISCONNECTED\n");
break;
case CHANNEL_MGR_CHANNEL_DISABLED:
cmdline_printf(cl, "DISABLED\n");
break;
case CHANNEL_MGR_CHANNEL_PROCESSING:
cmdline_printf(cl, "PROCESSING\n");
break;
default:
cmdline_printf(cl, "UNKNOWN\n");
break;
}
}
cmdline_printf(cl, "Virtual CPU(s): %u\n", info.num_vcpus);
for (i = 0; i < info.num_vcpus; i++) {
cmdline_printf(cl, " [%u]: Physical CPU %d\n", i,
info.pcpu_map[i]);
}
}
cmdline_parse_token_string_t cmd_vm_show =
TOKEN_STRING_INITIALIZER(struct cmd_show_vm_result,
show_vm, "show_vm");
cmdline_parse_token_string_t cmd_show_vm_name =
TOKEN_STRING_INITIALIZER(struct cmd_show_vm_result,
vm_name, NULL);
cmdline_parse_inst_t cmd_show_vm_set = {
.f = cmd_show_vm_parsed,
.data = NULL,
.help_str = "show_vm <vm_name>, prints the information on the "
"specified VM(s), the information lists the number of vCPUS, the "
"pinning to pCPU(s) as a bit mask, along with any communication "
"channels associated with each VM",
.tokens = {
(void *)&cmd_vm_show,
(void *)&cmd_show_vm_name,
NULL,
},
};
/* *** vCPU to pCPU mapping operations *** */
struct cmd_set_pcpu_result {
cmdline_fixed_string_t set_pcpu;
cmdline_fixed_string_t vm_name;
uint8_t vcpu;
uint8_t core;
};
static void
cmd_set_pcpu_parsed(void *parsed_result, struct cmdline *cl,
__rte_unused void *data)
{
struct cmd_set_pcpu_result *res = parsed_result;
if (set_pcpu(res->vm_name, res->vcpu, res->core) == 0)
cmdline_printf(cl, "Pinned vCPU(%"PRId8") to pCPU core "
"%"PRId8")\n", res->vcpu, res->core);
else
cmdline_printf(cl, "Unable to pin vCPU(%"PRId8") to pCPU core "
"%"PRId8")\n", res->vcpu, res->core);
}
cmdline_parse_token_string_t cmd_set_pcpu =
TOKEN_STRING_INITIALIZER(struct cmd_set_pcpu_result,
set_pcpu, "set_pcpu");
cmdline_parse_token_string_t cmd_set_pcpu_vm_name =
TOKEN_STRING_INITIALIZER(struct cmd_set_pcpu_result,
vm_name, NULL);
cmdline_parse_token_num_t set_pcpu_vcpu =
TOKEN_NUM_INITIALIZER(struct cmd_set_pcpu_result,
vcpu, RTE_UINT8);
cmdline_parse_token_num_t set_pcpu_core =
TOKEN_NUM_INITIALIZER(struct cmd_set_pcpu_result,
core, RTE_UINT64);
cmdline_parse_inst_t cmd_set_pcpu_set = {
.f = cmd_set_pcpu_parsed,
.data = NULL,
.help_str = "set_pcpu <vm_name> <vcpu> <pcpu>, Set the binding "
"of Virtual CPU on VM to the Physical CPU.",
.tokens = {
(void *)&cmd_set_pcpu,
(void *)&cmd_set_pcpu_vm_name,
(void *)&set_pcpu_vcpu,
(void *)&set_pcpu_core,
NULL,
},
};
struct cmd_vm_op_result {
cmdline_fixed_string_t op_vm;
cmdline_fixed_string_t vm_name;
};
static void
cmd_vm_op_parsed(void *parsed_result, struct cmdline *cl,
__rte_unused void *data)
{
struct cmd_vm_op_result *res = parsed_result;
if (!strcmp(res->op_vm, "add_vm")) {
if (add_vm(res->vm_name) < 0)
cmdline_printf(cl, "Unable to add VM '%s'\n", res->vm_name);
} else if (remove_vm(res->vm_name) < 0)
cmdline_printf(cl, "Unable to remove VM '%s'\n", res->vm_name);
}
cmdline_parse_token_string_t cmd_vm_op =
TOKEN_STRING_INITIALIZER(struct cmd_vm_op_result,
op_vm, "add_vm#rm_vm");
cmdline_parse_token_string_t cmd_vm_name =
TOKEN_STRING_INITIALIZER(struct cmd_vm_op_result,
vm_name, NULL);
cmdline_parse_inst_t cmd_vm_op_set = {
.f = cmd_vm_op_parsed,
.data = NULL,
.help_str = "add_vm|rm_vm <name>, add a VM for "
"subsequent operations with the CLI or remove a previously added "
"VM from the VM Power Manager",
.tokens = {
(void *)&cmd_vm_op,
(void *)&cmd_vm_name,
NULL,
},
};
/* *** VM channel operations *** */
struct cmd_channels_op_result {
cmdline_fixed_string_t op;
cmdline_fixed_string_t vm_name;
cmdline_fixed_string_t channel_list;
};
static void
cmd_channels_op_parsed(void *parsed_result, struct cmdline *cl,
__rte_unused void *data)
{
unsigned num_channels = 0, channel_num, i;
int channels_added;
unsigned int channel_list[RTE_MAX_LCORE];
char *token, *remaining, *tail_ptr;
struct cmd_channels_op_result *res = parsed_result;
if (!strcmp(res->channel_list, "all")) {
channels_added = add_all_channels(res->vm_name);
cmdline_printf(cl, "Added %d channels for VM '%s'\n",
channels_added, res->vm_name);
return;
}
remaining = res->channel_list;
while (1) {
if (remaining == NULL || remaining[0] == '\0')
break;
token = strsep(&remaining, ",");
if (token == NULL)
break;
errno = 0;
channel_num = (unsigned)strtol(token, &tail_ptr, 10);
if ((errno != 0) || tail_ptr == NULL || (*tail_ptr != '\0'))
break;
if (channel_num == RTE_MAX_LCORE) {
cmdline_printf(cl, "Channel number '%u' exceeds the maximum number "
"of allowable channels(%u) for VM '%s'\n", channel_num,
RTE_MAX_LCORE, res->vm_name);
return;
}
channel_list[num_channels++] = channel_num;
}
for (i = 0; i < num_channels; i++)
cmdline_printf(cl, "[%u]: Adding channel %u\n", i, channel_list[i]);
channels_added = add_channels(res->vm_name, channel_list,
num_channels);
cmdline_printf(cl, "Enabled %d channels for '%s'\n", channels_added,
res->vm_name);
}
cmdline_parse_token_string_t cmd_channels_op =
TOKEN_STRING_INITIALIZER(struct cmd_channels_op_result,
op, "add_channels");
cmdline_parse_token_string_t cmd_channels_vm_name =
TOKEN_STRING_INITIALIZER(struct cmd_channels_op_result,
vm_name, NULL);
cmdline_parse_token_string_t cmd_channels_list =
TOKEN_STRING_INITIALIZER(struct cmd_channels_op_result,
channel_list, NULL);
cmdline_parse_inst_t cmd_channels_op_set = {
.f = cmd_channels_op_parsed,
.data = NULL,
.help_str = "add_channels <vm_name> <list>|all, add "
"communication channels for the specified VM, the "
"virtio channels must be enabled in the VM "
"configuration(qemu/libvirt) and the associated VM must be active. "
"<list> is a comma-separated list of channel numbers to add, using "
"the keyword 'all' will attempt to add all channels for the VM",
.tokens = {
(void *)&cmd_channels_op,
(void *)&cmd_channels_vm_name,
(void *)&cmd_channels_list,
NULL,
},
};
struct cmd_set_query_result {
cmdline_fixed_string_t set_query;
cmdline_fixed_string_t vm_name;
cmdline_fixed_string_t query_status;
};
static void
cmd_set_query_parsed(void *parsed_result,
__rte_unused struct cmdline *cl,
__rte_unused void *data)
{
struct cmd_set_query_result *res = parsed_result;
if (!strcmp(res->query_status, "enable")) {
if (set_query_status(res->vm_name, true) < 0)
cmdline_printf(cl, "Unable to allow query for VM '%s'\n",
res->vm_name);
} else if (!strcmp(res->query_status, "disable")) {
if (set_query_status(res->vm_name, false) < 0)
cmdline_printf(cl, "Unable to disallow query for VM '%s'\n",
res->vm_name);
}
}
cmdline_parse_token_string_t cmd_set_query =
TOKEN_STRING_INITIALIZER(struct cmd_set_query_result,
set_query, "set_query");
cmdline_parse_token_string_t cmd_set_query_vm_name =
TOKEN_STRING_INITIALIZER(struct cmd_set_query_result,
vm_name, NULL);
cmdline_parse_token_string_t cmd_set_query_status =
TOKEN_STRING_INITIALIZER(struct cmd_set_query_result,
query_status, "enable#disable");
cmdline_parse_inst_t cmd_set_query_set = {
.f = cmd_set_query_parsed,
.data = NULL,
.help_str = "set_query <vm_name> <enable|disable>, allow or disallow queries"
" for the specified VM",
.tokens = {
(void *)&cmd_set_query,
(void *)&cmd_set_query_vm_name,
(void *)&cmd_set_query_status,
NULL,
},
};
struct cmd_channels_status_op_result {
cmdline_fixed_string_t op;
cmdline_fixed_string_t vm_name;
cmdline_fixed_string_t channel_list;
cmdline_fixed_string_t status;
};
static void
cmd_channels_status_op_parsed(void *parsed_result, struct cmdline *cl,
__rte_unused void *data)
{
unsigned num_channels = 0, channel_num;
int changed;
unsigned int channel_list[RTE_MAX_LCORE];
char *token, *remaining, *tail_ptr;
struct cmd_channels_status_op_result *res = parsed_result;
enum channel_status status;
if (!strcmp(res->status, "enabled"))
status = CHANNEL_MGR_CHANNEL_CONNECTED;
else
status = CHANNEL_MGR_CHANNEL_DISABLED;
if (!strcmp(res->channel_list, "all")) {
changed = set_channel_status_all(res->vm_name, status);
cmdline_printf(cl, "Updated status of %d channels "
"for VM '%s'\n", changed, res->vm_name);
return;
}
remaining = res->channel_list;
while (1) {
if (remaining == NULL || remaining[0] == '\0')
break;
token = strsep(&remaining, ",");
if (token == NULL)
break;
errno = 0;
channel_num = (unsigned)strtol(token, &tail_ptr, 10);
if ((errno != 0) || tail_ptr == NULL || (*tail_ptr != '\0'))
break;
if (channel_num == RTE_MAX_LCORE) {
cmdline_printf(cl, "%u exceeds the maximum number of allowable "
"channels(%u) for VM '%s'\n", channel_num,
RTE_MAX_LCORE, res->vm_name);
return;
}
channel_list[num_channels++] = channel_num;
}
changed = set_channel_status(res->vm_name, channel_list, num_channels,
status);
cmdline_printf(cl, "Updated status of %d channels "
"for VM '%s'\n", changed, res->vm_name);
}
cmdline_parse_token_string_t cmd_channels_status_op =
TOKEN_STRING_INITIALIZER(struct cmd_channels_status_op_result,
op, "set_channel_status");
cmdline_parse_token_string_t cmd_channels_status_vm_name =
TOKEN_STRING_INITIALIZER(struct cmd_channels_status_op_result,
vm_name, NULL);
cmdline_parse_token_string_t cmd_channels_status_list =
TOKEN_STRING_INITIALIZER(struct cmd_channels_status_op_result,
channel_list, NULL);
cmdline_parse_token_string_t cmd_channels_status =
TOKEN_STRING_INITIALIZER(struct cmd_channels_status_op_result,
status, "enabled#disabled");
cmdline_parse_inst_t cmd_channels_status_op_set = {
.f = cmd_channels_status_op_parsed,
.data = NULL,
.help_str = "set_channel_status <vm_name> <list>|all enabled|disabled, "
" enable or disable the communication channels in "
"list(comma-separated) for the specified VM, alternatively "
"list can be replaced with keyword 'all'. "
"Disabled channels will still receive packets on the host, "
"however the commands they specify will be ignored. "
"Set status to 'enabled' to begin processing requests again.",
.tokens = {
(void *)&cmd_channels_status_op,
(void *)&cmd_channels_status_vm_name,
(void *)&cmd_channels_status_list,
(void *)&cmd_channels_status,
NULL,
},
};
/* *** CPU Frequency operations *** */
struct cmd_show_cpu_freq_result {
cmdline_fixed_string_t show_cpu_freq;
uint8_t core_num;
};
static void
cmd_show_cpu_freq_parsed(void *parsed_result, struct cmdline *cl,
__rte_unused void *data)
{
struct cmd_show_cpu_freq_result *res = parsed_result;
uint32_t curr_freq = power_manager_get_current_frequency(res->core_num);
if (curr_freq == 0) {
cmdline_printf(cl, "Unable to get frequency for core %u\n",
res->core_num);
return;
}
cmdline_printf(cl, "Core %u frequency: %"PRId32"\n", res->core_num,
curr_freq);
}
cmdline_parse_token_string_t cmd_show_cpu_freq =
TOKEN_STRING_INITIALIZER(struct cmd_show_cpu_freq_result,
show_cpu_freq, "show_cpu_freq");
cmdline_parse_token_num_t cmd_show_cpu_freq_core_num =
TOKEN_NUM_INITIALIZER(struct cmd_show_cpu_freq_result,
core_num, RTE_UINT8);
cmdline_parse_inst_t cmd_show_cpu_freq_set = {
.f = cmd_show_cpu_freq_parsed,
.data = NULL,
.help_str = "Get the current frequency for the specified core",
.tokens = {
(void *)&cmd_show_cpu_freq,
(void *)&cmd_show_cpu_freq_core_num,
NULL,
},
};
struct cmd_set_cpu_freq_result {
cmdline_fixed_string_t set_cpu_freq;
uint8_t core_num;
cmdline_fixed_string_t cmd;
};
static void
cmd_set_cpu_freq_parsed(void *parsed_result, struct cmdline *cl,
__rte_unused void *data)
{
int ret = -1;
struct cmd_set_cpu_freq_result *res = parsed_result;
if (!strcmp(res->cmd , "up"))
ret = power_manager_scale_core_up(res->core_num);
else if (!strcmp(res->cmd , "down"))
ret = power_manager_scale_core_down(res->core_num);
else if (!strcmp(res->cmd , "min"))
ret = power_manager_scale_core_min(res->core_num);
else if (!strcmp(res->cmd , "max"))
ret = power_manager_scale_core_max(res->core_num);
else if (!strcmp(res->cmd, "enable_turbo"))
ret = power_manager_enable_turbo_core(res->core_num);
else if (!strcmp(res->cmd, "disable_turbo"))
ret = power_manager_disable_turbo_core(res->core_num);
if (ret < 0) {
cmdline_printf(cl, "Error scaling core(%u) '%s'\n", res->core_num,
res->cmd);
}
}
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_num_t cmd_set_cpu_freq_core_num =
TOKEN_NUM_INITIALIZER(struct cmd_set_cpu_freq_result,
core_num, RTE_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 current "
"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,
},
};
cmdline_parse_ctx_t main_ctx[] = {
(cmdline_parse_inst_t *)&cmd_quit,
(cmdline_parse_inst_t *)&cmd_vm_op_set,
(cmdline_parse_inst_t *)&cmd_channels_op_set,
(cmdline_parse_inst_t *)&cmd_channels_status_op_set,
(cmdline_parse_inst_t *)&cmd_show_vm_set,
(cmdline_parse_inst_t *)&cmd_show_cpu_freq_set,
(cmdline_parse_inst_t *)&cmd_set_cpu_freq_set,
(cmdline_parse_inst_t *)&cmd_set_pcpu_set,
(cmdline_parse_inst_t *)&cmd_set_query_set,
NULL,
};
void
run_cli(__rte_unused void *arg)
{
struct cmdline *cl;
cl = cmdline_stdin_new(main_ctx, "vmpower> ");
if (cl == NULL)
return;
cmdline_interact(cl);
cmdline_stdin_exit(cl);
}