#!/usr/bin/env python
import unittest
from framework import VppTestCase, VppTestRunner
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath
class TestTCP(VppTestCase):
""" TCP Test Case """
@classmethod
def setUpClass(cls):
super(TestTCP, cls).setUpClass()
def setUp(self):
super(TestTCP, self).setUp()
self.vapi.session_enable_disable(is_enabled=1)
self.create_loopback_interfaces(2)
table_id = 0
for i in self.lo_interfaces:
i.admin_up()
if table_id != 0:
tbl = VppIpTable(self, table_id)
tbl.add_vpp_config()
i.set_table_ip4(table_id)
i.config_ip4()
table_id += 1
# Configure namespaces
self.vapi.app_namespace_add(namespace_id="0",
sw_if_index=self.loop0.sw_if_index)
self.vapi.app_namespace_add(namespace_id="1",
sw_if_index=self.loop1.sw_if_index)
def tearDown(self):
for i in self.lo_interfaces:
i.unconfig_ip4()
i.set_table_ip4(0)
i.admin_down()
self.vapi.session_enable_disable(is_enabled=0)
super(TestTCP, self).tearDown()
def test_tcp_transfer(self):
""" TCP echo client/server transfer """
# Add inter-table routes
ip_t01 = VppIpRoute(self, self.loop1.local_ip4, 32,
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_table_id=1)])
ip_t10 = VppIpRoute(self, self.loop0.local_ip4, 32,
[VppRoutePath("0.0.0.0",
0xfffff/*
* Copyright (c) 2015 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.
*/
#define _GNU_SOURCE
#include <vppinfra/format.h>
#include <vlib/vlib.h>
#include <vlib/threads.h>
#include <vlib/unix/unix.h>
static u8 *
format_sched_policy_and_priority (u8 * s, va_list * args)
{
long i = va_arg (*args, long);
struct sched_param sched_param;
u8 *t = 0;
switch (sched_getscheduler (i))
{
#define _(v,f,str) case SCHED_POLICY_##f: t = (u8 *) str; break;
foreach_sched_policy
#undef _
}
if (sched_getparam (i, &sched_param) == 0)
return format (s, "%s (%d)", t, sched_param.sched_priority);
else
return format (s, "%s (n/a)", t);
}
static clib_error_t *
show_threads_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
vlib_worker_thread_t *w;
int i;
vlib_cli_output (vm, "%-7s%-20s%-12s%-8s%-25s%-7s%-7s%-7s%-10s",
"ID", "Name", "Type", "LWP", "Sched Policy (Priority)",
"lcore", "Core", "Socket", "State");
#if !defined(__powerpc64__)
for (i = 0; i < vec_len (vlib_worker_threads); i++)
{
w = vlib_worker_threads + i;
u8 *line = NULL;
line = format (line, "%-7d%-20s%-12s%-8d",
i,
w->name ? w->name : (u8 *) "",
w->registration ? w->registration->name : "", w->lwp);
line = format (line, "%-25U", format_sched_policy_and_priority, w->lwp);
int lcore = -1;
cpu_set_t cpuset;
CPU_ZERO (&cpuset);
int ret = -1;
ret =
pthread_getaffinity_np (w->thread_id, sizeof (cpu_set_t), &cpuset);
if (!ret)
{
int c;
for (c = 0; c < CPU_SETSIZE; c++)
if (CPU_ISSET (c, &cpuset))
{
if (lcore > -1)
{
lcore = -2;
break;
}
lcore = c;
}
}
else
{
lcore = w->lcore_id;
}
if (lcore > -1)
{
const char *sys_cpu_path = "/sys/devices/system/cpu/cpu";
int socket_id = -1;
int core_id = -1;
u8 *p = 0;
p = format (p, "%s%u/topology/core_id%c", sys_cpu_path, lcore, 0);
vlib_sysfs_read ((char *) p, "%d", &core_id);
vec_reset_length (p);
p =
format (p,
"%s%u/topology/physical_package_id%c",
sys_cpu_path, lcore, 0);
vlib_sysfs_read ((char *) p, "%d", &socket_id);
vec_free (p);
line = format (line, "%-7u%-7u%-7u%", lcore, core_id, socket_id);
}
else
{
line =
format (line, "%-7s%-7s%-7s%", (lcore == -2) ? "M" : "n/a", "n/a",
"n/a");
}
vlib_cli_output (vm, "%v", line);
vec_free (line);
}
#endif
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_threads_command, static) = {
.path = "show threads",
.short_help = "Show threads",
.function = show_threads_fn,
};
/* *INDENT-ON* */
/*
* Trigger threads to grab frame queue trace data
*/
static clib_error_t *
trace_frame_queue (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
clib_error_t *error = NULL;
frame_queue_trace_t *fqt;
frame_queue_nelt_counter_t *fqh;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_frame_queue_main_t *fqm;
u32 num_fq;
u32 fqix;
u32 enable = 2;
u32 index = ~(u32) 0;
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "on"))
enable = 1;
else if (unformat (line_input, "off"))
enable = 0;
else if (unformat (line_input, "index %u", &index))
;
else
{
error = clib_error_return (0, "parse error: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (enable > 1)
{
error = clib_error_return (0, "expecting on or off");
goto done;
}
if (vec_len (tm->frame_queue_mains) == 0)
{
error = clib_error_return (0, "no worker handoffs exist");
goto done;
}
if (index > vec_len (tm->frame_queue_mains) - 1)
{
error = clib_error_return (0,
"expecting valid worker handoff queue index");
goto done;
}
fqm = vec_elt_at_index (tm->frame_queue_mains, index);
num_fq = vec_len (fqm->vlib_frame_queues);
if (num_fq == 0)
{
vlib_cli_output (vm, "No frame queues exist\n");
goto done;
}
// Allocate storage for trace if necessary
vec_validate_aligned (fqm->frame_queue_traces, num_fq - 1,
CLIB_CACHE_LINE_BYTES);
vec_validate_aligned (fqm->frame_queue_histogram, num_fq - 1,
CLIB_CACHE_LINE_BYTES);
for (fqix = 0; fqix < num_fq; fqix++)
{
fqt = &fqm->frame_queue_traces[fqix];
fqh = &fqm->frame_queue_histogram[fqix];
memset (fqt->n_vectors, 0xff, sizeof (fqt->n_vectors));
fqt->written = 0;
memset (fqh, 0, sizeof (*fqh));
fqm->vlib_frame_queues[fqix]->trace = enable;
}
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_trace_frame_queue,static) = {
.path = "trace frame-queue",
.short_help = "trace frame-queue (on|off)",
.function = trace_frame_queue,
.is_mp_safe = 1,
};
/* *INDENT-ON* */
/*
* Adding two counters and compute percent of total
* Round up, e.g. 0.000001 => 1%
*/
static u32
compute_percent (u64 * two_counters, u64 total)
{
if (total == 0)
{
return 0;
}
else
{
return (((two_counters[0] + two_counters[1]) * 100) +
(total - 1)) / total;
}
}
/*
* Display frame queue trace data gathered by threads.
*/
static clib_error_t *
show_frame_queue_internal (vlib_main_t * vm,
vlib_frame_queue_main_t * fqm, u32 histogram)
{
clib_error_t *error = NULL;
frame_queue_trace_t *fqt;
frame_queue_nelt_counter_t *fqh;
u32 num_fq;
u32 fqix;
num_fq = vec_len (fqm->frame_queue_traces);
if (num_fq == 0)
{
vlib_cli_output (vm, "No trace data for frame queues\n");
return error;
}
if (histogram)
{
vlib_cli_output (vm, "0-1 2-3 4-5 6-7 8-9 10-11 12-13 14-15 "
"16-17 18-19 20-21 22-23 24-25 26-27 28-29 30-31\n");
}
for (fqix = 0; fqix < num_fq; fqix++)
{
fqt = &(fqm->frame_queue_traces[fqix]);
vlib_cli_output (vm, "Thread %d %v\n", fqix,
vlib_worker_threads[fqix].name);
if (fqt->written == 0)
{
vlib_cli_output (vm, " no trace data\n");
continue;
}
if (histogram)
{
fqh = &(fqm->frame_queue_histogram[fqix]);
u32 nelt;
u64 total = 0;
for (nelt = 0; nelt < FRAME_QUEUE_MAX_NELTS; nelt++)
{
total += fqh->count[nelt];
}
/*
* Print in pairs to condense the output.
* Allow entries with 0 counts to be clearly identified, by rounding up.
* Any non-zero value will be displayed as at least one percent. This
* also means the sum of percentages can be > 100, but that is fine. The
* histogram is counted from the last time "trace frame on" was issued.
*/
vlib_cli_output (vm,
"%3d%% %3d%% %3d%% %3d%% %3d%% %3d%% %3d%% %3d%% "
"%3d%% %3d%% %3d%% %3d%% %3d%% %3d%% %3d%% %3d%%\n",
compute_percent (&fqh->count[0], total),
compute_percent (&fqh->count[2], total),
compute_percent (&fqh->count[4], total),
compute_percent (&fqh->count[6], total),
compute_percent (&fqh->count[8], total),
compute_percent (&fqh->count[10], total),
compute_percent (&fqh->count[12], total),
compute_percent (&fqh->count[14], total),
compute_percent (&fqh->count[16], total),
compute_percent (&fqh->count[18], total),
compute_percent (&fqh->count[20], total),
compute_percent (&fqh->count[22], total),
compute_percent (&fqh->count[24], total),
compute_percent (&fqh->count[26], total),
compute_percent (&fqh->count[28], total),
compute_percent (&fqh->count[30], total));
}
else
{
vlib_cli_output (vm,
" vector-threshold %d ring size %d in use %d\n",
fqt->threshold, fqt->nelts, fqt->n_in_use);
vlib_cli_output (vm, " head %12d head_hint %12d tail %12d\n",
fqt->head, fqt->head_hint, fqt->tail);
vlib_cli_output (vm,
" %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d\n",
fqt->n_vectors[0], fqt->n_vectors[1],
fqt->n_vectors[2], fqt->n_vectors[3],
fqt->n_vectors[4], fqt->n_vectors[5],
fqt->n_vectors[6], fqt->n_vectors[7],
fqt->n_vectors[8], fqt->n_vectors[9],
fqt->n_vectors[10], fqt->n_vectors[11],
fqt->n_vectors[12], fqt->n_vectors[13],
fqt->n_vectors[14], fqt->n_vectors[15]);
if (fqt->nelts > 16)
{
vlib_cli_output (vm,
" %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d %3d\n",
fqt->n_vectors[16], fqt->n_vectors[17],
fqt->n_vectors[18], fqt->n_vectors[19],
fqt->n_vectors[20], fqt->n_vectors[21],
fqt->n_vectors[22], fqt->n_vectors[23],
fqt->n_vectors[24], fqt->n_vectors[25],
fqt->n_vectors[26], fqt->n_vectors[27],
fqt->n_vectors[28], fqt->n_vectors[29],
fqt->n_vectors[30], fqt->n_vectors[31]);
}
}
}
return error;
}
static clib_error_t *
show_frame_queue_trace (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_frame_queue_main_t *fqm;
clib_error_t *error;
vec_foreach (fqm, tm->frame_queue_mains)
{
vlib_cli_output (vm, "Worker handoff queue index %u (next node '%U'):",
fqm - tm->frame_queue_mains,
format_vlib_node_name, vm, fqm->node_index);
error = show_frame_queue_internal (vm, fqm, 0);
if (error)
return error;
}
return 0;
}
static clib_error_t *
show_frame_queue_histogram (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_frame_queue_main_t *fqm;
clib_error_t *error;
vec_foreach (fqm, tm->frame_queue_mains)
{
vlib_cli_output (vm, "Worker handoff queue index %u (next node '%U'):",
fqm - tm->frame_queue_mains,
format_vlib_node_name, vm, fqm->node_index);
error = show_frame_queue_internal (vm, fqm, 1);
if (error)
return error;
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_show_frame_queue_trace,static) = {
.path = "show frame-queue",
.short_help = "show frame-queue trace",
.function = show_frame_queue_trace,
};
/* *INDENT-ON* */
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_show_frame_queue_histogram,static) = {
.path = "show frame-queue histogram",
.short_help = "show frame-queue histogram",
.function = show_frame_queue_histogram,
};
/* *INDENT-ON* */
/*
* Modify the number of elements on the frame_queues
*/
static clib_error_t *
test_frame_queue_nelts (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_frame_queue_main_t *fqm;
clib_error_t *error = NULL;
u32 num_fq;
u32 fqix;
u32 nelts = 0;
u32 index = ~(u32) 0;
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "nelts %u", &nelts))
;
else if (unformat (line_input, "index %u", &index))
;
else
{
error = clib_error_return (0, "parse error: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (index > vec_len (tm->frame_queue_mains) - 1)
{
error = clib_error_return (0,
"expecting valid worker handoff queue index");
goto done;
}
fqm = vec_elt_at_index (tm->frame_queue_mains, index);
if ((nelts != 4) && (nelts != 8) && (nelts != 16) && (nelts != 32))
{
error = clib_error_return (0, "expecting 4,8,16,32");
goto done;
}
num_fq = vec_len (fqm->vlib_frame_queues);
if (num_fq == 0)
{
vlib_cli_output (vm, "No frame queues exist\n");
goto done;
}
for (fqix = 0; fqix < num_fq; fqix++)
{
fqm->vlib_frame_queues[fqix]->nelts = nelts;
}
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_test_frame_queue_nelts,static) = {
.path = "test frame-queue nelts",
.short_help = "test frame-queue nelts (4,8,16,32)",
.function = test_frame_queue_nelts,
};
/* *INDENT-ON* */
/*
* Modify the max number of packets pulled off the frame queues
*/
static clib_error_t *
test_frame_queue_threshold (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vlib_frame_queue_main_t *fqm;
clib_error_t *error = NULL;
u32 num_fq;
u32 fqix;
u32 threshold = ~(u32) 0;
u32 index = ~(u32) 0;
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "threshold %u", &threshold))
;
else if (unformat (line_input, "index %u", &index))
;
else
{
error = clib_error_return (0, "parse error: '%U'",
format_unformat_error, line_input);
goto done;
}
}
if (index > vec_len (tm->frame_queue_mains) - 1)
{
error = clib_error_return (0,
"expecting valid worker handoff queue index");
goto done;
}
fqm = vec_elt_at_index (tm->frame_queue_mains, index);
if (threshold == ~(u32) 0)
{
vlib_cli_output (vm, "expecting threshold value\n");
goto done;
}
if (threshold == 0)
threshold = ~0;
num_fq = vec_len (fqm->vlib_frame_queues);
if (num_fq == 0)
{
vlib_cli_output (vm, "No frame queues exist\n");
goto done;
}
for (fqix = 0; fqix < num_fq; fqix++)
{
fqm->vlib_frame_queues[fqix]->vector_threshold = threshold;
}
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_test_frame_queue_threshold,static) = {
.path = "test frame-queue threshold",
.short_help = "test frame-queue threshold N (0=no limit)",
.function = test_frame_queue_threshold,
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
