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/*
* Copyright (c) 2021 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vnet/vnet.h>
#include <vlib/vlib.h>
static clib_error_t *
monitor_interface_command_fn (vlib_main_t *vm, unformat_input_t *input,
vlib_cli_command_t *cmd)
{
const vnet_main_t *vnm = vnet_get_main ();
const vlib_combined_counter_main_t *counters =
vnm->interface_main.combined_sw_if_counters;
f64 refresh_interval = 1.0;
u32 refresh_count = ~0;
clib_error_t *error = 0;
vlib_counter_t vrx[2], vtx[2];
f64 ts[2];
u32 hw_if_index = ~0;
u8 spin = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "%U", unformat_vnet_hw_interface, vnm,
&hw_if_index))
;
else if (unformat (input, "interval %f", &refresh_interval))
;
else if (unformat (input, "count %u", &refresh_count))
;
else
{
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
goto done;
}
}
if (hw_if_index == ~0)
{
error = clib_error_return (0, "no interface passed");
goto done;
}
vlib_get_combined_counter (counters + VNET_INTERFACE_COUNTER_RX, hw_if_index,
&vrx[spin]);
vlib_get_combined_counter (counters + VNET_INTERFACE_COUNTER_TX, hw_if_index,
&vtx[spin]);
ts[spin] = vlib_time_now (vm);
while (refresh_count--)
{
f64 sleep_interval, tsd;
while (((sleep_interval =
ts[spin] + refresh_interval - vlib_time_now (vm)) > 0.0))
{
uword event_type, *event_data = 0;
vlib_process_wait_for_event_or_clock (vm, sleep_interval);
event_type = vlib_process_get_events (vm, &event_data);
switch (event_type)
{
case ~0: /* no events => timeout */
break;
default:
/* someone pressed a key, abort */
vlib_cli_output (vm, "Aborted due to a keypress.");
goto done;
}
vec_free (event_data);
}
spin ^= 1;
vlib_get_combined_counter (counters + VNET_INTERFACE_COUNTER_RX,
hw_if_index, &vrx[spin]);
vlib_get_combined_counter (counters + VNET_INTERFACE_COUNTER_TX,
hw_if_index, &vtx[spin]);
ts[spin] = vlib_time_now (vm);
tsd = ts[spin] - ts[spin ^ 1];
vlib_cli_output (
vm, "rx: %Upps %Ubps tx: %Upps %Ubps%c", format_base10,
(u32) ((vrx[spin].packets - vrx[spin ^ 1].packets) / tsd),
format_base10, (u32) ((vrx[spin].bytes - vrx[spin ^ 1].bytes) / tsd),
format_base10,
(u32) ((vtx[spin].packets - vtx[spin ^ 1].packets) / tsd),
format_base10, (u32) ((vtx[spin].bytes - vtx[spin ^ 1].bytes) / tsd));
}
done:
return error;
}
VLIB_CLI_COMMAND (monitor_interface_command, static) = {
.path = "monitor interface",
.short_help =
"monitor interface <interface> [interval <intv>] [count <count>]",
.function = monitor_interface_command_fn,
.is_mp_safe = 1,
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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