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infiniband plugin: initial commit

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This commit is contained in:
Luke Yeager
2020-06-23 15:51:28 -07:00
parent f4349080e7
commit 2be4e190aa
8 changed files with 602 additions and 4 deletions
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213
COPYING
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@@ -2,11 +2,12 @@ collectd consists of a daemon and numerous plugins. The daemon is licensed
under the "MIT License"; its source files are located at src/daemon/. The
plugins are licenses individually, please check the top of the plugin's source
file(s) to see which license applies. The majority of plugins is licensed
either under the "MIT License" or the "GNU General Public License".
under the "MIT License" or the "GNU General Public License" or the "Apache
License".
The "MIT License" and "GNU General Public License" follow. Other licenses, not
included in this file, should be considered "as published by the Open Source
Initiative (OSI)".
The "MIT License", "GNU General Public License", and "Apache License" follow.
Other licenses, not included in this file, should be considered "as published
by the Open Source Initiative (OSI)".
MIT License
===========
@@ -369,3 +370,207 @@ proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.
Apache License
==============
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6
Makefile.am
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@@ -1131,6 +1131,12 @@ hugepages_la_SOURCES = src/hugepages.c
hugepages_la_LDFLAGS = $(PLUGIN_LDFLAGS)
endif
if BUILD_PLUGIN_INFINIBAND
pkglib_LTLIBRARIES += infiniband.la
infiniband_la_SOURCES = src/infiniband.c
infiniband_la_LDFLAGS = $(PLUGIN_LDFLAGS)
endif
if BUILD_PLUGIN_INTEL_PMU
pkglib_LTLIBRARIES += intel_pmu.la
intel_pmu_la_SOURCES = \

3
README
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@@ -172,6 +172,9 @@ Features
This plugin should be compiled with compiler defenses enabled, for
example -fstack-protector.
- infiniband
Attributes and counters for each port on each IB device.
- intel_pmu
The intel_pmu plugin reads performance counters provided by the Linux
kernel perf interface. The plugin uses jevents library to resolve named

4
configure.ac
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@@ -6595,6 +6595,7 @@ plugin_gps="no"
plugin_gpu_nvidia="no"
plugin_grpc="no"
plugin_hugepages="no"
plugin_infiniband="no"
plugin_intel_pmu="no"
plugin_intel_rdt="no"
plugin_interface="no"
@@ -6659,6 +6660,7 @@ if test "x$ac_system" = "xLinux"; then
plugin_fhcount="yes"
plugin_fscache="yes"
plugin_hugepages="yes"
plugin_infiniband="yes"
plugin_interface="yes"
plugin_ipc="yes"
plugin_irq="yes"
@@ -7057,6 +7059,7 @@ AC_PLUGIN([gpu_nvidia], [$with_cuda], [NVIDIA GPU plugin
AC_PLUGIN([grpc], [$plugin_grpc], [gRPC plugin])
AC_PLUGIN([hddtemp], [yes], [Query hddtempd])
AC_PLUGIN([hugepages], [$plugin_hugepages], [Hugepages statistics])
AC_PLUGIN([infiniband], [$plugin_infiniband], [Infiniband statistics])
AC_PLUGIN([intel_pmu], [$with_libjevents], [Intel performance monitor plugin])
AC_PLUGIN([intel_rdt], [$with_libpqos], [Intel RDT monitor plugin])
AC_PLUGIN([interface], [$plugin_interface], [Interface traffic statistics])
@@ -7502,6 +7505,7 @@ AC_MSG_RESULT([ gpu_nvidia . . . . . $enable_gpu_nvidia])
AC_MSG_RESULT([ grpc . . . . . . . . $enable_grpc])
AC_MSG_RESULT([ hddtemp . . . . . . . $enable_hddtemp])
AC_MSG_RESULT([ hugepages . . . . . . $enable_hugepages])
AC_MSG_RESULT([ infiniband . . . . . $enable_infiniband])
AC_MSG_RESULT([ intel_pmu . . . . . . $enable_intel_pmu])
AC_MSG_RESULT([ intel_rdt . . . . . . $enable_intel_rdt])
AC_MSG_RESULT([ interface . . . . . . $enable_interface])

1
src/collectd.conf.in
View File

@@ -136,6 +136,7 @@
#@BUILD_PLUGIN_GRPC_TRUE@LoadPlugin grpc
#@BUILD_PLUGIN_HDDTEMP_TRUE@LoadPlugin hddtemp
#@BUILD_PLUGIN_HUGEPAGES_TRUE@LoadPlugin hugepages
#@BUILD_PLUGIN_INFINIBAND_TRUE@LoadPlugin infiniband
#@BUILD_PLUGIN_INTEL_PMU_TRUE@LoadPlugin intel_pmu
#@BUILD_PLUGIN_INTEL_RDT_TRUE@LoadPlugin intel_rdt
@BUILD_PLUGIN_INTERFACE_TRUE@@BUILD_PLUGIN_INTERFACE_TRUE@LoadPlugin interface

33
src/collectd.conf.pod
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@@ -3710,6 +3710,39 @@ Defaults to B<false>.
=back
=head2 Plugin C<infiniband>
The C<infiniband> plugin collects information about IB ports. Metrics are
gathered from C</sys/class/infiniband/DEVICE/port/PORTNUM/*>, and I<Port> names
are formatted like C<DEVICE:PORTNUM> (see examples below).
B<Options:>
=over 4
=item B<Port> I<Port>
Select the port I<Port>. Whether it is collected or ignored depends on the
B<IgnoreSelected> setting, see below. As with other plugins that use the
daemon's ignorelist functionality, a string that starts and ends with a slash
is interpreted as a regular expression. Examples:
Port "mlx5_0:1"
Port "/mthca0:[0-9]/"
See F</"IGNORELISTS"> for details.
=item B<IgnoreSelected> I<true>|I<false>
Sets whether selected ports are ignored or if all other ports are ignored. The
behavior (hopefully) is intuitive: If no B<Port> option is configured, all
ports are collected. If at least one B<Port> option is given and
B<IgnoreSelected> is not given or set to I<false>, B<only> matching ports will
be collected. If B<IgnoreSelected> is set to B<true>, all ports are collected
B<except> the ones matched.
=back
=head2 Plugin C<intel_pmu>
The I<intel_pmu> plugin collects performance counters data on Intel CPUs using

333
src/infiniband.c Normal file
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@@ -0,0 +1,333 @@
/**
* collectd - src/infiniband.c
*
* Copyright 2002 NVIDIA Corporation
*
* 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.
*
* Authors:
* Luke Yeager <lyeager at nvidia.com>
**/
#include "collectd.h"
#include "plugin.h"
#include "utils/common/common.h"
#include "utils/ignorelist/ignorelist.h"
#if !KERNEL_LINUX
#error "No applicable input method."
#endif
#include <ctype.h>
#include <glob.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* Configuration settings ****************************************************/
static const char *config_keys[] = {
"Port",
"IgnoreSelected",
};
static int config_keys_num = STATIC_ARRAY_SIZE(config_keys);
static ignorelist_t *ignorelist;
/* Listing ports *************************************************************/
static int ib_glob_ports(glob_t *g) {
return glob("/sys/class/infiniband/*/ports/*/state", GLOB_NOSORT, NULL, g);
}
static int ib_parse_glob_port(char *path, char **device, char **port) {
char *tok, *saveptr = NULL;
int j = 0;
*device = NULL;
*port = NULL;
tok = strtok_r(path, "/", &saveptr);
while (tok != NULL) {
if (j == 3)
*device = tok;
else if (j == 5) {
*port = tok;
break;
}
j++;
tok = strtok_r(NULL, "/", &saveptr);
}
return (*device != NULL && *port != NULL) ? 0 : 1;
}
/* Core functions ************************************************************/
static int ib_read_value_file(const char *device, const char *port,
const char *filename, int ds_type, value_t *dst) {
char path[PATH_MAX];
if (snprintf(path, PATH_MAX, "/sys/class/infiniband/%s/ports/%s/%s", device,
port, filename) < 0)
return 1;
if (parse_value_file(path, dst, ds_type) != 0)
return 1;
return 0;
}
/*
* Used to parse files like this:
* rate: "100 Gb/sec"
* state: "4: ACTIVE"
* phys_state: "5: LinkUp"
*/
static int ib_read_value_file_num_only(const char *device, const char *port,
const char *filename, int ds_type,
value_t *dst) {
char path[PATH_MAX];
FILE *fh;
char buffer[256];
if (snprintf(path, PATH_MAX, "/sys/class/infiniband/%s/ports/%s/%s", device,
port, filename) < 0)
return 1;
// copied from parse_value_file()
fh = fopen(path, "r");
if (fh == NULL)
return 1;
if (fgets(buffer, sizeof(buffer), fh) == NULL) {
fclose(fh);
return 1;
}
fclose(fh);
strstripnewline(buffer);
// zero-out the first non-digit character
for (int i = 0; i < sizeof(buffer); i++) {
if (!isdigit(buffer[i])) {
buffer[i] = '\0';
break;
}
}
return parse_value(buffer, dst, ds_type);
}
static void ib_submit(const char *device, const char *port, value_t *vs, int vc,
const char *type, const char *type_instance) {
value_list_t vl = VALUE_LIST_INIT;
vl.values = vs;
vl.values_len = vc;
sstrncpy(vl.plugin, "infiniband", sizeof(vl.plugin));
snprintf(vl.plugin_instance, sizeof(vl.plugin_instance), "%s:%s", device,
port);
sstrncpy(vl.type, type, sizeof(vl.type));
sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
plugin_dispatch_values(&vl);
}
/**
* For further reading on the available sysfs files, see:
* - Linux: ./Documentation/infiniband/sysfs.txt
*
* For further reading on the meaning of each counter, see the InfiniBand
* Architecture Specification, sections 14.2.5.6 and 16.1.3.5.
**/
static int ib_read_port(const char *device, const char *port) {
value_t value, values[2];
/* PortInfo attributes */
if (ib_read_value_file_num_only(device, port, "state", DS_TYPE_GAUGE,
&value) == 0)
ib_submit(device, port, &value, 1, "ib_state", "");
if (ib_read_value_file_num_only(device, port, "phys_state", DS_TYPE_GAUGE,
&value) == 0)
ib_submit(device, port, &value, 1, "ib_phys_state", "");
if (ib_read_value_file_num_only(device, port, "rate", DS_TYPE_GAUGE,
&value) == 0)
ib_submit(device, port, &value, 1, "ib_rate", ""); // units are Gb/s
if (ib_read_value_file(device, port, "cap_mask", DS_TYPE_GAUGE, &value) == 0)
ib_submit(device, port, &value, 1, "ib_cap_mask", "");
if (ib_read_value_file(device, port, "lid", DS_TYPE_GAUGE, &value) == 0)
ib_submit(device, port, &value, 1, "ib_lid", "");
if (ib_read_value_file(device, port, "lid_mask_count", DS_TYPE_GAUGE,
&value) == 0)
ib_submit(device, port, &value, 1, "ib_lid_mask_count", "");
if (ib_read_value_file(device, port, "sm_lid", DS_TYPE_GAUGE, &value) == 0)
ib_submit(device, port, &value, 1, "ib_sm_lid", "");
if (ib_read_value_file(device, port, "sm_sl", DS_TYPE_GAUGE, &value) == 0)
ib_submit(device, port, &value, 1, "ib_sm_sl", "");
/* PortCounters */
// Total number of data octets, divided by 4, received on all VLs at the port
if ((ib_read_value_file(device, port, "counters/port_rcv_data",
DS_TYPE_DERIVE, &values[0]) == 0) &&
(ib_read_value_file(device, port, "counters/port_xmit_data",
DS_TYPE_DERIVE, &values[1]) == 0)) {
values[0].derive *= 4;
values[1].derive *= 4;
ib_submit(device, port, values, 2, "ib_octets", "");
}
// Total number of packets, including packets containing errors, and excluding
// link packets, received from all VLs on the port
if ((ib_read_value_file(device, port, "counters/port_rcv_packets",
DS_TYPE_DERIVE, &values[0]) == 0) &&
(ib_read_value_file(device, port, "counters/port_xmit_packets",
DS_TYPE_DERIVE, &values[1]) == 0))
ib_submit(device, port, values, 2, "ib_packets", "total");
// Total number of packets containing an error that were received on the port
if (ib_read_value_file(device, port, "counters/port_rcv_errors",
DS_TYPE_DERIVE, &values[0]) == 0) {
values[1].derive = 0;
ib_submit(device, port, values, 2, "ib_packets", "errors");
}
// Total number of packets marked with the EBP delimiter received on the port.
if (ib_read_value_file(device, port,
"counters/port_rcv_remote_physical_errors",
DS_TYPE_DERIVE, &values[0]) == 0) {
values[1].derive = 0;
ib_submit(device, port, values, 2, "ib_packets", "remote_physical_errors");
}
// Total number of packets received on the port that were discarded because
// they could not be forwarded by the switch relay
if (ib_read_value_file(device, port, "counters/port_rcv_switch_relay_errors",
DS_TYPE_DERIVE, &values[0]) == 0) {
values[1].derive = 0;
ib_submit(device, port, values, 2, "ib_packets", "switch_relay_errors");
}
// Total number of outbound packets discarded by the port because the port is
// down or congested.
if (ib_read_value_file(device, port, "counters/port_xmit_discards",
DS_TYPE_DERIVE, &values[1]) == 0) {
values[0].derive = 0;
ib_submit(device, port, values, 2, "ib_packets", "discards");
}
// Total number of packets not transmitted from the switch physical port
// Total number of packets received on the switch physical port that are
// discarded
if ((ib_read_value_file(device, port, "counters/port_rcv_constraint_errors",
DS_TYPE_DERIVE, &values[0]) == 0) &&
(ib_read_value_file(device, port, "counters/port_xmit_constraint_errors",
DS_TYPE_DERIVE, &values[1]) == 0))
ib_submit(device, port, values, 2, "ib_packets", "constraint_errors");
// Number of incoming VL15 packets dropped due to resource limitations (e.g.,
// lack of buffers) in the port
if (ib_read_value_file(device, port, "counters/VL15_dropped", DS_TYPE_DERIVE,
&values[0]) == 0) {
values[1].derive = 0;
ib_submit(device, port, values, 2, "ib_packets", "vl15_dropped");
}
// Total number of times the Port Training state machine has successfully
// completed the link error recovery process.
if (ib_read_value_file(device, port, "counters/link_error_recovery",
DS_TYPE_DERIVE, &value) == 0)
ib_submit(device, port, &value, 1, "ib_link_error_recovery", "recovered");
// Total number of times the Port Training state machine has failed the link
// error recovery process and downed the link.
if (ib_read_value_file(device, port, "counters/link_downed", DS_TYPE_DERIVE,
&value) == 0)
ib_submit(device, port, &value, 1, "ib_link_error_recovery", "downed");
// Total number of minor link errors detected on one or more physical lanes.
if (ib_read_value_file(device, port, "counters/symbol_error", DS_TYPE_DERIVE,
&value) == 0)
ib_submit(device, port, &value, 1, "ib_errors", "symbol_errors");
// The number of times that the count of local physical errors exceeded the
// threshold specified by LocalPhyErrors
if (ib_read_value_file(device, port, "counters/local_link_integrity_errors",
DS_TYPE_DERIVE, &value) == 0)
ib_submit(device, port, &value, 1, "ib_errors",
"local_link_integrity_errors");
// The number of times that OverrunErrors consecutive flow control update
// periods occurred, each having at least one overrun error
if (ib_read_value_file(device, port,
"counters/excessive_buffer_overrun_errors",
DS_TYPE_DERIVE, &value) == 0)
ib_submit(device, port, &value, 1, "ib_errors",
"excessive_buffer_overrun_errors");
// The number of ticks during which the port selected by PortSelect had data
// to transmit but no data was sent during the entire tick
if (ib_read_value_file(device, port, "counters/port_xmit_wait",
DS_TYPE_DERIVE, &value) == 0)
ib_submit(device, port, &value, 1, "ib_xmit_wait", "");
/* PortCountersExtended */
if ((ib_read_value_file(device, port, "counters/unicast_rcv_packets",
DS_TYPE_DERIVE, &values[0]) == 0) &&
(ib_read_value_file(device, port, "counters/unicast_xmit_packets",
DS_TYPE_DERIVE, &values[1]) == 0))
ib_submit(device, port, values, 2, "ib_packets", "unicast");
if ((ib_read_value_file(device, port, "counters/multicast_rcv_packets",
DS_TYPE_DERIVE, &values[0]) == 0) &&
(ib_read_value_file(device, port, "counters/multicast_xmit_packets",
DS_TYPE_DERIVE, &values[1]) == 0))
ib_submit(device, port, values, 2, "ib_packets", "multicast");
return 0;
}
/* Plugin entrypoints ********************************************************/
static int infiniband_config(const char *key, const char *value) {
if (ignorelist == NULL)
ignorelist = ignorelist_create(1);
if (strcasecmp(key, "Port") == 0) {
ignorelist_add(ignorelist, value);
} else if (strcasecmp(key, "IgnoreSelected") == 0) {
int invert = 1;
if (IS_TRUE(value))
invert = 0;
ignorelist_set_invert(ignorelist, invert);
} else {
return -1;
}
return 0;
}
static int infiniband_init(void) {
glob_t g;
if (ib_glob_ports(&g) != 0)
plugin_unregister_read("infiniband"); // no ports found
globfree(&g);
return 0;
}
static int infiniband_read(void) {
int rc = 0;
glob_t g;
char port_name[255];
if (ib_glob_ports(&g) == 0) {
for (int i = 0; i < g.gl_pathc; ++i) {
char *device = NULL, *port = NULL;
if (ib_parse_glob_port(g.gl_pathv[i], &device, &port) == 0) {
snprintf(port_name, sizeof(port_name), "%s:%s", device, port);
if (ignorelist_match(ignorelist, port_name) == 0)
rc &= ib_read_port(device, port);
}
}
}
globfree(&g);
return rc;
}
void module_register(void) {
plugin_register_config("infiniband", infiniband_config, config_keys,
config_keys_num);
plugin_register_init("infiniband", infiniband_init);
plugin_register_read("infiniband", infiniband_read);
}

13
src/types.db
View File

@@ -114,6 +114,19 @@ http_request_methods value:DERIVE:0:U
http_requests value:DERIVE:0:U
http_response_codes value:DERIVE:0:U
humidity value:GAUGE:0:100
ib_cap_mask value:GAUGE:0:U
ib_errors value:DERIVE:0:U
ib_lid value:GAUGE:0:U
ib_lid_mask_count value:GAUGE:0:U
ib_link_error_recovery value:DERIVE:0:U
ib_octets rx:DERIVE:0:U tx:DERIVE:0:U
ib_packets rx:DERIVE:0:U tx:DERIVE:0:U
ib_phys_state value:GAUGE:0:255
ib_rate value:GAUGE:0:U
ib_sm_lid value:GAUGE:0:U
ib_sm_sl value:GAUGE:0:U
ib_state value:GAUGE:0:255
ib_xmit_wait value:DERIVE:0:U
if_collisions value:DERIVE:0:U
if_dropped rx:DERIVE:0:U, tx:DERIVE:0:U
if_errors rx:DERIVE:0:U, tx:DERIVE:0:U