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authorRadu Nicolau <radu.nicolau@intel.com>2018-06-11 11:03:23 +0100
committerThomas Monjalon <thomas@monjalon.net>2018-07-12 19:19:07 +0200
commitf88e7c175a68ed451d14c1bc379fef60fea07aff (patch)
tree43e024e65d9527a8b939c01980fbf90e4baec482 /examples
parent39e38d58307559d08c37495d589177350b8c8c6e (diff)
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examples/l3fwd-power: add high/regular perf cores options
Added high/regular performance core pinning configuration options that can be used in place of the existing 'config' option. '--high-perf-cores CORELIST' option allow the user to specify a high performance cores list; if this option is not used and the 'perf-config' option is used, the application will query the system using the rte_power library in order to get a list of available high performance cores. The cores that are considered high performance are the cores that have turbo enabled. '--perf-config (port,queue,hi_perf,lcore_index)' option is similar to the existing config option, the cores are specified as indices for bins containing high or regular performance cores. Example: l3fwd-power -l 6,7 -- -p 0xff \ --high-perf-cores 6 --perf-config="(0,0,0,0),(1,0,1,0)" cores 6 and 7 are used, core 6 is specified as a high performance core. port 0 queue 0 will use a regular performance core, index 0 (core 7) port 1 queue 0 will use a high performance core, index 0 (core 6) Signed-off-by: Radu Nicolau <radu.nicolau@intel.com> Acked-by: David Hunt <david.hunt@intel.com>
Diffstat (limited to 'examples')
-rw-r--r--examples/l3fwd-power/Makefile4
-rw-r--r--examples/l3fwd-power/main.c74
-rw-r--r--examples/l3fwd-power/main.h20
-rw-r--r--examples/l3fwd-power/meson.build4
-rw-r--r--examples/l3fwd-power/perf_core.c230
-rw-r--r--examples/l3fwd-power/perf_core.h12
6 files changed, 323 insertions, 21 deletions
diff --git a/examples/l3fwd-power/Makefile b/examples/l3fwd-power/Makefile
index f2fe746..d7e39a3 100644
--- a/examples/l3fwd-power/Makefile
+++ b/examples/l3fwd-power/Makefile
@@ -1,11 +1,11 @@
# SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2010-2014 Intel Corporation
+# Copyright(c) 2010-2018 Intel Corporation
# binary name
APP = l3fwd-power
# all source are stored in SRCS-y
-SRCS-y := main.c
+SRCS-y := main.c perf_core.c
# Build using pkg-config variables if possible
$(shell pkg-config --exists libdpdk)
diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index f6fabd9..d15cd52 100644
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -1,5 +1,5 @@
/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2016 Intel Corporation
+ * Copyright(c) 2010-2018 Intel Corporation
*/
#include <stdio.h>
@@ -44,6 +44,9 @@
#include <rte_power.h>
#include <rte_spinlock.h>
+#include "perf_core.h"
+#include "main.h"
+
#define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
#define MAX_PKT_BURST 32
@@ -155,14 +158,7 @@ struct lcore_rx_queue {
#define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
-#define MAX_LCORE_PARAMS 1024
-struct lcore_params {
- uint16_t port_id;
- uint8_t queue_id;
- uint8_t lcore_id;
-} __rte_cache_aligned;
-
-static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
+struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
static struct lcore_params lcore_params_array_default[] = {
{0, 0, 2},
{0, 1, 2},
@@ -175,8 +171,8 @@ static struct lcore_params lcore_params_array_default[] = {
{3, 1, 3},
};
-static struct lcore_params * lcore_params = lcore_params_array_default;
-static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
+struct lcore_params *lcore_params = lcore_params_array_default;
+uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
sizeof(lcore_params_array_default[0]);
static struct rte_eth_conf port_conf = {
@@ -1120,10 +1116,15 @@ print_usage(const char *prgname)
{
printf ("%s [EAL options] -- -p PORTMASK -P"
" [--config (port,queue,lcore)[,(port,queue,lcore]]"
+ " [--high-perf-cores CORELIST"
+ " [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
" [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
" -p PORTMASK: hexadecimal bitmask of ports to configure\n"
" -P : enable promiscuous mode\n"
" --config (port,queue,lcore): rx queues configuration\n"
+ " --high-perf-cores CORELIST: list of high performance cores\n"
+ " --perf-config: similar as config, cores specified as indices"
+ " for bins containing high or regular performance cores\n"
" --no-numa: optional, disable numa awareness\n"
" --enable-jumbo: enable jumbo frame"
" which max packet len is PKTLEN in decimal (64-9600)\n"
@@ -1233,6 +1234,8 @@ parse_args(int argc, char **argv)
char *prgname = argv[0];
static struct option lgopts[] = {
{"config", 1, 0, 0},
+ {"perf-config", 1, 0, 0},
+ {"high-perf-cores", 1, 0, 0},
{"no-numa", 0, 0, 0},
{"enable-jumbo", 0, 0, 0},
{CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
@@ -1271,6 +1274,26 @@ parse_args(int argc, char **argv)
}
if (!strncmp(lgopts[option_index].name,
+ "perf-config", 11)) {
+ ret = parse_perf_config(optarg);
+ if (ret) {
+ printf("invalid perf-config\n");
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ "high-perf-cores", 15)) {
+ ret = parse_perf_core_list(optarg);
+ if (ret) {
+ printf("invalid high-perf-cores\n");
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (!strncmp(lgopts[option_index].name,
"no-numa", 7)) {
printf("numa is disabled \n");
numa_on = 0;
@@ -1608,6 +1631,23 @@ static int check_ptype(uint16_t portid)
}
+static int
+init_power_library(void)
+{
+ int ret = 0, lcore_id;
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id)) {
+ /* init power management library */
+ ret = rte_power_init(lcore_id);
+ if (ret)
+ RTE_LOG(ERR, POWER,
+ "Library initialization failed on core %u\n",
+ lcore_id);
+ }
+ }
+ return ret;
+}
+
int
main(int argc, char **argv)
{
@@ -1642,6 +1682,12 @@ main(int argc, char **argv)
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
+ if (init_power_library())
+ rte_exit(EXIT_FAILURE, "init_power_library failed\n");
+
+ if (update_lcore_params() < 0)
+ rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
+
if (check_lcore_params() < 0)
rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
@@ -1783,12 +1829,6 @@ main(int argc, char **argv)
if (rte_lcore_is_enabled(lcore_id) == 0)
continue;
- /* init power management library */
- ret = rte_power_init(lcore_id);
- if (ret)
- RTE_LOG(ERR, POWER,
- "Library initialization failed on core %u\n", lcore_id);
-
/* init timer structures for each enabled lcore */
rte_timer_init(&power_timers[lcore_id]);
hz = rte_get_timer_hz();
diff --git a/examples/l3fwd-power/main.h b/examples/l3fwd-power/main.h
new file mode 100644
index 0000000..258de98
--- /dev/null
+++ b/examples/l3fwd-power/main.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#ifndef _MAIN_H_
+#define _MAIN_H_
+
+
+#define MAX_LCORE_PARAMS 1024
+struct lcore_params {
+ uint16_t port_id;
+ uint8_t queue_id;
+ uint8_t lcore_id;
+} __rte_cache_aligned;
+
+extern struct lcore_params *lcore_params;
+extern uint16_t nb_lcore_params;
+extern struct lcore_params lcore_params_array[];
+
+#endif /* _MAIN_H_ */
diff --git a/examples/l3fwd-power/meson.build b/examples/l3fwd-power/meson.build
index f633a0f..20c8054 100644
--- a/examples/l3fwd-power/meson.build
+++ b/examples/l3fwd-power/meson.build
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2018 Intel Corporation
# meson file, for building this example as part of a main DPDK build.
#
@@ -11,5 +11,5 @@ if host_machine.system() != 'linux'
endif
deps += ['power', 'timer', 'lpm', 'hash']
sources = files(
- 'main.c'
+ 'main.c', 'perf_core.c'
)
diff --git a/examples/l3fwd-power/perf_core.c b/examples/l3fwd-power/perf_core.c
new file mode 100644
index 0000000..83948ea
--- /dev/null
+++ b/examples/l3fwd-power/perf_core.c
@@ -0,0 +1,230 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <rte_common.h>
+#include <rte_memory.h>
+#include <rte_lcore.h>
+#include <rte_power.h>
+#include <rte_string_fns.h>
+
+#include "perf_core.h"
+#include "main.h"
+
+
+static uint16_t hp_lcores[RTE_MAX_LCORE];
+static uint16_t nb_hp_lcores;
+
+struct perf_lcore_params {
+ uint16_t port_id;
+ uint8_t queue_id;
+ uint8_t high_perf;
+ uint8_t lcore_idx;
+} __rte_cache_aligned;
+
+static struct perf_lcore_params prf_lc_prms[MAX_LCORE_PARAMS];
+static uint16_t nb_prf_lc_prms;
+
+int
+update_lcore_params(void)
+{
+ uint8_t non_perf_lcores[RTE_MAX_LCORE];
+ uint16_t nb_non_perf_lcores = 0;
+ int i, j, ret;
+
+ /* if perf-config option was not used do nothing */
+ if (nb_prf_lc_prms == 0)
+ return 0;
+
+ /* if high-perf-cores option was not used query every available core */
+ if (nb_hp_lcores == 0) {
+ for (i = 0; i < RTE_MAX_LCORE; i++) {
+ if (rte_lcore_is_enabled(i)) {
+ struct rte_power_core_capabilities caps;
+ ret = rte_power_get_capabilities(i, &caps);
+ if (ret == 0 && caps.turbo) {
+ hp_lcores[nb_hp_lcores] = i;
+ nb_hp_lcores++;
+ }
+ }
+ }
+ }
+
+ /* create a list on non high performance cores*/
+ for (i = 0; i < RTE_MAX_LCORE; i++) {
+ if (rte_lcore_is_enabled(i)) {
+ int hp = 0;
+ for (j = 0; j < nb_hp_lcores; j++) {
+ if (hp_lcores[j] == i) {
+ hp = 1;
+ break;
+ }
+ }
+ if (!hp)
+ non_perf_lcores[nb_non_perf_lcores++] = i;
+ }
+ }
+
+ /* update the lcore config */
+ for (i = 0; i < nb_prf_lc_prms; i++) {
+ int lcore = -1;
+ if (prf_lc_prms[i].high_perf) {
+ if (prf_lc_prms[i].lcore_idx < nb_hp_lcores)
+ lcore = hp_lcores[prf_lc_prms[i].lcore_idx];
+ } else {
+ if (prf_lc_prms[i].lcore_idx < nb_non_perf_lcores)
+ lcore =
+ non_perf_lcores[prf_lc_prms[i].lcore_idx];
+ }
+
+ if (lcore < 0) {
+ printf("Performance cores configuration error\n");
+ return -1;
+ }
+
+ lcore_params_array[i].lcore_id = lcore;
+ lcore_params_array[i].queue_id = prf_lc_prms[i].queue_id;
+ lcore_params_array[i].port_id = prf_lc_prms[i].port_id;
+ }
+
+ lcore_params = lcore_params_array;
+ nb_lcore_params = nb_prf_lc_prms;
+
+ printf("Updated performance core configuration\n");
+ for (i = 0; i < nb_prf_lc_prms; i++)
+ printf("\t(%d,%d,%d)\n", lcore_params[i].port_id,
+ lcore_params[i].queue_id,
+ lcore_params[i].lcore_id);
+
+ return 0;
+}
+
+int
+parse_perf_config(const char *q_arg)
+{
+ char s[256];
+ const char *p, *p0 = q_arg;
+ char *end;
+ enum fieldnames {
+ FLD_PORT = 0,
+ FLD_QUEUE,
+ FLD_LCORE_HP,
+ FLD_LCORE_IDX,
+ _NUM_FLD
+ };
+ unsigned long int_fld[_NUM_FLD];
+ char *str_fld[_NUM_FLD];
+ int i;
+ unsigned int size;
+
+ nb_prf_lc_prms = 0;
+
+ while ((p = strchr(p0, '(')) != NULL) {
+ ++p;
+ p0 = strchr(p, ')');
+ if (p0 == NULL)
+ return -1;
+
+ size = p0 - p;
+ if (size >= sizeof(s))
+ return -1;
+
+ snprintf(s, sizeof(s), "%.*s", size, p);
+ if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
+ _NUM_FLD)
+ return -1;
+ for (i = 0; i < _NUM_FLD; i++) {
+ errno = 0;
+ int_fld[i] = strtoul(str_fld[i], &end, 0);
+ if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
+ return -1;
+ }
+ if (nb_prf_lc_prms >= MAX_LCORE_PARAMS) {
+ printf("exceeded max number of lcore params: %hu\n",
+ nb_prf_lc_prms);
+ return -1;
+ }
+ prf_lc_prms[nb_prf_lc_prms].port_id =
+ (uint8_t)int_fld[FLD_PORT];
+ prf_lc_prms[nb_prf_lc_prms].queue_id =
+ (uint8_t)int_fld[FLD_QUEUE];
+ prf_lc_prms[nb_prf_lc_prms].high_perf =
+ !!(uint8_t)int_fld[FLD_LCORE_HP];
+ prf_lc_prms[nb_prf_lc_prms].lcore_idx =
+ (uint8_t)int_fld[FLD_LCORE_IDX];
+ ++nb_prf_lc_prms;
+ }
+
+ return 0;
+}
+
+int
+parse_perf_core_list(const char *corelist)
+{
+ int i, idx = 0;
+ unsigned int count = 0;
+ char *end = NULL;
+ int min, max;
+
+ if (corelist == NULL) {
+ printf("invalid core list\n");
+ return -1;
+ }
+
+
+ /* Remove all blank characters ahead and after */
+ while (isblank(*corelist))
+ corelist++;
+ i = strlen(corelist);
+ while ((i > 0) && isblank(corelist[i - 1]))
+ i--;
+
+ /* Get list of cores */
+ min = RTE_MAX_LCORE;
+ do {
+ while (isblank(*corelist))
+ corelist++;
+ if (*corelist == '\0')
+ return -1;
+ errno = 0;
+ idx = strtoul(corelist, &end, 10);
+ if (errno || end == NULL)
+ return -1;
+ while (isblank(*end))
+ end++;
+ if (*end == '-') {
+ min = idx;
+ } else if ((*end == ',') || (*end == '\0')) {
+ max = idx;
+ if (min == RTE_MAX_LCORE)
+ min = idx;
+ for (idx = min; idx <= max; idx++) {
+ hp_lcores[count] = idx;
+ count++;
+ }
+ min = RTE_MAX_LCORE;
+ } else {
+ printf("invalid core list\n");
+ return -1;
+ }
+ corelist = end + 1;
+ } while (*end != '\0');
+
+ if (count == 0) {
+ printf("invalid core list\n");
+ return -1;
+ }
+
+ nb_hp_lcores = count;
+
+ printf("Configured %d high performance cores\n", nb_hp_lcores);
+ for (i = 0; i < nb_hp_lcores; i++)
+ printf("\tHigh performance core %d %d\n",
+ i, hp_lcores[i]);
+
+ return 0;
+}
+
diff --git a/examples/l3fwd-power/perf_core.h b/examples/l3fwd-power/perf_core.h
new file mode 100644
index 0000000..7b7b747
--- /dev/null
+++ b/examples/l3fwd-power/perf_core.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#ifndef _PERF_CORE_H_
+#define _PERF_CORE_H_
+
+int parse_perf_config(const char *q_arg);
+int parse_perf_core_list(const char *corelist);
+int update_lcore_params(void);
+
+#endif /* _PERF_CORE_H_ */