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/* SPDX-License-Identifier: Apache-2.0
* Copyright (c) 2023 Cisco Systems, Inc.
*/
#include <vnet/vnet.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/dev/dev.h>
#include <vnet/dev/counters.h>
#include <vnet/dev/log.h>
#include <vnet/interface/rx_queue_funcs.h>
VLIB_REGISTER_LOG_CLASS (dev_log, static) = {
.class_name = "dev",
.subclass_name = "counters",
};
vnet_dev_counter_main_t *
vnet_dev_counters_alloc (vlib_main_t *vm, vnet_dev_counter_t *counters,
u16 n_counters, char *fmt, ...)
{
vnet_dev_counter_t *c;
vnet_dev_counter_main_t *cm;
u32 alloc_sz;
alloc_sz = sizeof (*cm) + n_counters * sizeof (*c);
cm = clib_mem_alloc_aligned (alloc_sz, CLIB_CACHE_LINE_BYTES);
clib_memset (cm, 0, sizeof (*cm));
cm->n_counters = n_counters;
if (fmt && strlen (fmt))
{
va_list va;
va_start (va, fmt);
cm->desc = va_format (0, fmt, &va);
va_end (va);
}
for (u32 i = 0; i < n_counters; i++)
{
cm->counters[i] = counters[i];
cm->counters[i].index = i;
}
vec_validate_aligned (cm->counter_data, n_counters - 1,
CLIB_CACHE_LINE_BYTES);
vec_validate_aligned (cm->counter_start, n_counters - 1,
CLIB_CACHE_LINE_BYTES);
return cm;
}
void
vnet_dev_counters_clear (vlib_main_t *vm, vnet_dev_counter_main_t *cm)
{
for (int i = 0; i < cm->n_counters; i++)
{
cm->counter_start[i] += cm->counter_data[i];
cm->counter_data[i] = 0;
}
}
void
vnet_dev_counters_free (vlib_main_t *vm, vnet_dev_counter_main_t *cm)
{
vec_free (cm->desc);
vec_free (cm->counter_data);
vec_free (cm->counter_start);
clib_mem_free (cm);
}
u8 *
format_vnet_dev_counter_name (u8 *s, va_list *va)
{
vnet_dev_counter_t *c = va_arg (*va, vnet_dev_counter_t *);
char *std_counters[] = {
[VNET_DEV_CTR_TYPE_RX_BYTES] = "total bytes received",
[VNET_DEV_CTR_TYPE_TX_BYTES] = "total bytes transmitted",
[VNET_DEV_CTR_TYPE_RX_PACKETS] = "total packets received",
[VNET_DEV_CTR_TYPE_TX_PACKETS] = "total packets transmitted",
[VNET_DEV_CTR_TYPE_RX_DROPS] = "total drops received",
[VNET_DEV_CTR_TYPE_TX_DROPS] = "total drops transmitted",
};
char *directions[] = {
[VNET_DEV_CTR_DIR_RX] = "received",
[VNET_DEV_CTR_DIR_TX] = "sent",
};
char *units[] = {
[VNET_DEV_CTR_UNIT_BYTES] = "bytes",
[VNET_DEV_CTR_UNIT_PACKETS] = "packets",
};
if (c->type == VNET_DEV_CTR_TYPE_VENDOR)
{
s = format (s, "%s", c->name);
if (c->unit < ARRAY_LEN (units) && units[c->unit])
s = format (s, " %s", units[c->unit]);
if (c->dir < ARRAY_LEN (directions) && directions[c->dir])
s = format (s, " %s", directions[c->dir]);
}
else if (c->type < ARRAY_LEN (std_counters) && std_counters[c->type])
s = format (s, "%s", std_counters[c->type]);
else
ASSERT (0);
return s;
}
u8 *
format_vnet_dev_counters (u8 *s, va_list *va)
{
vnet_dev_format_args_t *a = va_arg (*va, vnet_dev_format_args_t *);
vnet_dev_counter_main_t *cm = va_arg (*va, vnet_dev_counter_main_t *);
u32 line = 0, indent = format_get_indent (s);
foreach_vnet_dev_counter (c, cm)
{
if (a->show_zero_counters == 0 && cm->counter_data[c->index] == 0)
continue;
if (line++)
s = format (s, "\n%U", format_white_space, indent);
s = format (s, "%-45U%lu", format_vnet_dev_counter_name, c,
cm->counter_data[c->index]);
}
return s;
}
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