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-rw-r--r--examples/load_balancer/config.c1058
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diff --git a/examples/load_balancer/config.c b/examples/load_balancer/config.c
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--- /dev/null
+++ b/examples/load_balancer/config.c
@@ -0,0 +1,1058 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+
+#include <rte_common.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_launch.h>
+#include <rte_atomic.h>
+#include <rte_cycles.h>
+#include <rte_prefetch.h>
+#include <rte_lcore.h>
+#include <rte_per_lcore.h>
+#include <rte_branch_prediction.h>
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_random.h>
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_lpm.h>
+#include <rte_string_fns.h>
+
+#include "main.h"
+
+struct app_params app;
+
+static const char usage[] =
+" \n"
+" load_balancer <EAL PARAMS> -- <APP PARAMS> \n"
+" \n"
+"Application manadatory parameters: \n"
+" --rx \"(PORT, QUEUE, LCORE), ...\" : List of NIC RX ports and queues \n"
+" handled by the I/O RX lcores \n"
+" --tx \"(PORT, LCORE), ...\" : List of NIC TX ports handled by the I/O TX \n"
+" lcores \n"
+" --w \"LCORE, ...\" : List of the worker lcores \n"
+" --lpm \"IP / PREFIX => PORT; ...\" : List of LPM rules used by the worker \n"
+" lcores for packet forwarding \n"
+" \n"
+"Application optional parameters: \n"
+" --rsz \"A, B, C, D\" : Ring sizes \n"
+" A = Size (in number of buffer descriptors) of each of the NIC RX \n"
+" rings read by the I/O RX lcores (default value is %u) \n"
+" B = Size (in number of elements) of each of the SW rings used by the\n"
+" I/O RX lcores to send packets to worker lcores (default value is\n"
+" %u) \n"
+" C = Size (in number of elements) of each of the SW rings used by the\n"
+" worker lcores to send packets to I/O TX lcores (default value is\n"
+" %u) \n"
+" D = Size (in number of buffer descriptors) of each of the NIC TX \n"
+" rings written by I/O TX lcores (default value is %u) \n"
+" --bsz \"(A, B), (C, D), (E, F)\" : Burst sizes \n"
+" A = I/O RX lcore read burst size from NIC RX (default value is %u) \n"
+" B = I/O RX lcore write burst size to output SW rings (default value \n"
+" is %u) \n"
+" C = Worker lcore read burst size from input SW rings (default value \n"
+" is %u) \n"
+" D = Worker lcore write burst size to output SW rings (default value \n"
+" is %u) \n"
+" E = I/O TX lcore read burst size from input SW rings (default value \n"
+" is %u) \n"
+" F = I/O TX lcore write burst size to NIC TX (default value is %u) \n"
+" --pos-lb POS : Position of the 1-byte field within the input packet used by\n"
+" the I/O RX lcores to identify the worker lcore for the current \n"
+" packet (default value is %u) \n";
+
+void
+app_print_usage(void)
+{
+ printf(usage,
+ APP_DEFAULT_NIC_RX_RING_SIZE,
+ APP_DEFAULT_RING_RX_SIZE,
+ APP_DEFAULT_RING_TX_SIZE,
+ APP_DEFAULT_NIC_TX_RING_SIZE,
+ APP_DEFAULT_BURST_SIZE_IO_RX_READ,
+ APP_DEFAULT_BURST_SIZE_IO_RX_WRITE,
+ APP_DEFAULT_BURST_SIZE_WORKER_READ,
+ APP_DEFAULT_BURST_SIZE_WORKER_WRITE,
+ APP_DEFAULT_BURST_SIZE_IO_TX_READ,
+ APP_DEFAULT_BURST_SIZE_IO_TX_WRITE,
+ APP_DEFAULT_IO_RX_LB_POS
+ );
+}
+
+#ifndef APP_ARG_RX_MAX_CHARS
+#define APP_ARG_RX_MAX_CHARS 4096
+#endif
+
+#ifndef APP_ARG_RX_MAX_TUPLES
+#define APP_ARG_RX_MAX_TUPLES 128
+#endif
+
+static int
+str_to_unsigned_array(
+ const char *s, size_t sbuflen,
+ char separator,
+ unsigned num_vals,
+ unsigned *vals)
+{
+ char str[sbuflen+1];
+ char *splits[num_vals];
+ char *endptr = NULL;
+ int i, num_splits = 0;
+
+ /* copy s so we don't modify original string */
+ rte_snprintf(str, sizeof(str), "%s", s);
+ num_splits = rte_strsplit(str, sizeof(str), splits, num_vals, separator);
+
+ errno = 0;
+ for (i = 0; i < num_splits; i++) {
+ vals[i] = strtoul(splits[i], &endptr, 0);
+ if (errno != 0 || *endptr != '\0')
+ return -1;
+ }
+
+ return num_splits;
+}
+
+static int
+str_to_unsigned_vals(
+ const char *s,
+ size_t sbuflen,
+ char separator,
+ unsigned num_vals, ...)
+{
+ unsigned i, vals[num_vals];
+ va_list ap;
+
+ num_vals = str_to_unsigned_array(s, sbuflen, separator, num_vals, vals);
+
+ va_start(ap, num_vals);
+ for (i = 0; i < num_vals; i++) {
+ unsigned *u = va_arg(ap, unsigned *);
+ *u = vals[i];
+ }
+ va_end(ap);
+ return num_vals;
+}
+
+static int
+parse_arg_rx(const char *arg)
+{
+ const char *p0 = arg, *p = arg;
+ uint32_t n_tuples;
+
+ if (strnlen(arg, APP_ARG_RX_MAX_CHARS + 1) == APP_ARG_RX_MAX_CHARS + 1) {
+ return -1;
+ }
+
+ n_tuples = 0;
+ while ((p = strchr(p0,'(')) != NULL) {
+ struct app_lcore_params *lp;
+ uint32_t port, queue, lcore, i;
+
+ p0 = strchr(p++, ')');
+ if ((p0 == NULL) ||
+ (str_to_unsigned_vals(p, p0 - p, ',', 3, &port, &queue, &lcore) != 3)) {
+ return -2;
+ }
+
+ /* Enable port and queue for later initialization */
+ if ((port >= APP_MAX_NIC_PORTS) || (queue >= APP_MAX_RX_QUEUES_PER_NIC_PORT)) {
+ return -3;
+ }
+ if (app.nic_rx_queue_mask[port][queue] != 0) {
+ return -4;
+ }
+ app.nic_rx_queue_mask[port][queue] = 1;
+
+ /* Check and assign (port, queue) to I/O lcore */
+ if (rte_lcore_is_enabled(lcore) == 0) {
+ return -5;
+ }
+
+ if (lcore >= APP_MAX_LCORES) {
+ return -6;
+ }
+ lp = &app.lcore_params[lcore];
+ if (lp->type == e_APP_LCORE_WORKER) {
+ return -7;
+ }
+ lp->type = e_APP_LCORE_IO;
+ for (i = 0; i < lp->io.rx.n_nic_queues; i ++) {
+ if ((lp->io.rx.nic_queues[i].port == port) &&
+ (lp->io.rx.nic_queues[i].queue == queue)) {
+ return -8;
+ }
+ }
+ if (lp->io.rx.n_nic_queues >= APP_MAX_NIC_RX_QUEUES_PER_IO_LCORE) {
+ return -9;
+ }
+ lp->io.rx.nic_queues[lp->io.rx.n_nic_queues].port = (uint8_t) port;
+ lp->io.rx.nic_queues[lp->io.rx.n_nic_queues].queue = (uint8_t) queue;
+ lp->io.rx.n_nic_queues ++;
+
+ n_tuples ++;
+ if (n_tuples > APP_ARG_RX_MAX_TUPLES) {
+ return -10;
+ }
+ }
+
+ if (n_tuples == 0) {
+ return -11;
+ }
+
+ return 0;
+}
+
+#ifndef APP_ARG_TX_MAX_CHARS
+#define APP_ARG_TX_MAX_CHARS 4096
+#endif
+
+#ifndef APP_ARG_TX_MAX_TUPLES
+#define APP_ARG_TX_MAX_TUPLES 128
+#endif
+
+static int
+parse_arg_tx(const char *arg)
+{
+ const char *p0 = arg, *p = arg;
+ uint32_t n_tuples;
+
+ if (strnlen(arg, APP_ARG_TX_MAX_CHARS + 1) == APP_ARG_TX_MAX_CHARS + 1) {
+ return -1;
+ }
+
+ n_tuples = 0;
+ while ((p = strchr(p0,'(')) != NULL) {
+ struct app_lcore_params *lp;
+ uint32_t port, lcore, i;
+
+ p0 = strchr(p++, ')');
+ if ((p0 == NULL) ||
+ (str_to_unsigned_vals(p, p0 - p, ',', 2, &port, &lcore) != 2)) {
+ return -2;
+ }
+
+ /* Enable port and queue for later initialization */
+ if (port >= APP_MAX_NIC_PORTS) {
+ return -3;
+ }
+ if (app.nic_tx_port_mask[port] != 0) {
+ return -4;
+ }
+ app.nic_tx_port_mask[port] = 1;
+
+ /* Check and assign (port, queue) to I/O lcore */
+ if (rte_lcore_is_enabled(lcore) == 0) {
+ return -5;
+ }
+
+ if (lcore >= APP_MAX_LCORES) {
+ return -6;
+ }
+ lp = &app.lcore_params[lcore];
+ if (lp->type == e_APP_LCORE_WORKER) {
+ return -7;
+ }
+ lp->type = e_APP_LCORE_IO;
+ for (i = 0; i < lp->io.tx.n_nic_ports; i ++) {
+ if (lp->io.tx.nic_ports[i] == port) {
+ return -8;
+ }
+ }
+ if (lp->io.tx.n_nic_ports >= APP_MAX_NIC_TX_PORTS_PER_IO_LCORE) {
+ return -9;
+ }
+ lp->io.tx.nic_ports[lp->io.tx.n_nic_ports] = (uint8_t) port;
+ lp->io.tx.n_nic_ports ++;
+
+ n_tuples ++;
+ if (n_tuples > APP_ARG_TX_MAX_TUPLES) {
+ return -10;
+ }
+ }
+
+ if (n_tuples == 0) {
+ return -11;
+ }
+
+ return 0;
+}
+
+#ifndef APP_ARG_W_MAX_CHARS
+#define APP_ARG_W_MAX_CHARS 4096
+#endif
+
+#ifndef APP_ARG_W_MAX_TUPLES
+#define APP_ARG_W_MAX_TUPLES APP_MAX_WORKER_LCORES
+#endif
+
+static int
+parse_arg_w(const char *arg)
+{
+ const char *p = arg;
+ uint32_t n_tuples;
+
+ if (strnlen(arg, APP_ARG_W_MAX_CHARS + 1) == APP_ARG_W_MAX_CHARS + 1) {
+ return -1;
+ }
+
+ n_tuples = 0;
+ while (*p != 0) {
+ struct app_lcore_params *lp;
+ uint32_t lcore;
+
+ errno = 0;
+ lcore = strtoul(p, NULL, 0);
+ if ((errno != 0)) {
+ return -2;
+ }
+
+ /* Check and enable worker lcore */
+ if (rte_lcore_is_enabled(lcore) == 0) {
+ return -3;
+ }
+
+ if (lcore >= APP_MAX_LCORES) {
+ return -4;
+ }
+ lp = &app.lcore_params[lcore];
+ if (lp->type == e_APP_LCORE_IO) {
+ return -5;
+ }
+ lp->type = e_APP_LCORE_WORKER;
+
+ n_tuples ++;
+ if (n_tuples > APP_ARG_W_MAX_TUPLES) {
+ return -6;
+ }
+
+ p = strchr(p, ',');
+ if (p == NULL) {
+ break;
+ }
+ p ++;
+ }
+
+ if (n_tuples == 0) {
+ return -7;
+ }
+
+ if ((n_tuples & (n_tuples - 1)) != 0) {
+ return -8;
+ }
+
+ return 0;
+}
+
+#ifndef APP_ARG_LPM_MAX_CHARS
+#define APP_ARG_LPM_MAX_CHARS 4096
+#endif
+
+static int
+parse_arg_lpm(const char *arg)
+{
+ const char *p = arg, *p0;
+
+ if (strnlen(arg, APP_ARG_LPM_MAX_CHARS + 1) == APP_ARG_TX_MAX_CHARS + 1) {
+ return -1;
+ }
+
+ while (*p != 0) {
+ uint32_t ip_a, ip_b, ip_c, ip_d, ip, depth, if_out;
+ char *endptr;
+
+ p0 = strchr(p, '/');
+ if ((p0 == NULL) ||
+ (str_to_unsigned_vals(p, p0 - p, '.', 4, &ip_a, &ip_b, &ip_c, &ip_d) != 4)) {
+ return -2;
+ }
+
+ p = p0 + 1;
+ errno = 0;
+ depth = strtoul(p, &endptr, 0);
+ if (errno != 0 || *endptr != '=') {
+ return -3;
+ }
+ p = strchr(p, '>');
+ if (p == NULL) {
+ return -4;
+ }
+ if_out = strtoul(++p, &endptr, 0);
+ if (errno != 0 || (*endptr != '\0' && *endptr != ';')) {
+ return -5;
+ }
+
+ if ((ip_a >= 256) || (ip_b >= 256) || (ip_c >= 256) || (ip_d >= 256) ||
+ (depth == 0) || (depth >= 32) ||
+ (if_out >= APP_MAX_NIC_PORTS)) {
+ return -6;
+ }
+ ip = (ip_a << 24) | (ip_b << 16) | (ip_c << 8) | ip_d;
+
+ if (app.n_lpm_rules >= APP_MAX_LPM_RULES) {
+ return -7;
+ }
+ app.lpm_rules[app.n_lpm_rules].ip = ip;
+ app.lpm_rules[app.n_lpm_rules].depth = (uint8_t) depth;
+ app.lpm_rules[app.n_lpm_rules].if_out = (uint8_t) if_out;
+ app.n_lpm_rules ++;
+
+ p = strchr(p, ';');
+ if (p == NULL) {
+ return -8;
+ }
+ p ++;
+ }
+
+ if (app.n_lpm_rules == 0) {
+ return -9;
+ }
+
+ return 0;
+}
+
+static int
+app_check_lpm_table(void)
+{
+ uint32_t rule;
+
+ /* For each rule, check that the output I/F is enabled */
+ for (rule = 0; rule < app.n_lpm_rules; rule ++)
+ {
+ uint32_t port = app.lpm_rules[rule].if_out;
+
+ if (app.nic_tx_port_mask[port] == 0) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+app_check_every_rx_port_is_tx_enabled(void)
+{
+ uint8_t port;
+
+ for (port = 0; port < APP_MAX_NIC_PORTS; port ++) {
+ if ((app_get_nic_rx_queues_per_port(port) > 0) && (app.nic_tx_port_mask[port] == 0)) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+#ifndef APP_ARG_RSZ_CHARS
+#define APP_ARG_RSZ_CHARS 63
+#endif
+
+static int
+parse_arg_rsz(const char *arg)
+{
+ if (strnlen(arg, APP_ARG_RSZ_CHARS + 1) == APP_ARG_RSZ_CHARS + 1) {
+ return -1;
+ }
+
+ if (str_to_unsigned_vals(arg, APP_ARG_RSZ_CHARS, ',', 4,
+ &app.nic_rx_ring_size,
+ &app.ring_rx_size,
+ &app.ring_tx_size,
+ &app.nic_tx_ring_size) != 4)
+ return -2;
+
+
+ if ((app.nic_rx_ring_size == 0) ||
+ (app.nic_tx_ring_size == 0) ||
+ (app.ring_rx_size == 0) ||
+ (app.ring_tx_size == 0)) {
+ return -3;
+ }
+
+ return 0;
+}
+
+#ifndef APP_ARG_BSZ_CHARS
+#define APP_ARG_BSZ_CHARS 63
+#endif
+
+static int
+parse_arg_bsz(const char *arg)
+{
+ const char *p = arg, *p0;
+ if (strnlen(arg, APP_ARG_BSZ_CHARS + 1) == APP_ARG_BSZ_CHARS + 1) {
+ return -1;
+ }
+
+ p0 = strchr(p++, ')');
+ if ((p0 == NULL) ||
+ (str_to_unsigned_vals(p, p0 - p, ',', 2, &app.burst_size_io_rx_read, &app.burst_size_io_rx_write) != 2)) {
+ return -2;
+ }
+
+ p = strchr(p0, '(');
+ if (p == NULL) {
+ return -3;
+ }
+
+ p0 = strchr(p++, ')');
+ if ((p0 == NULL) ||
+ (str_to_unsigned_vals(p, p0 - p, ',', 2, &app.burst_size_worker_read, &app.burst_size_worker_write) != 2)) {
+ return -4;
+ }
+
+ p = strchr(p0, '(');
+ if (p == NULL) {
+ return -5;
+ }
+
+ p0 = strchr(p++, ')');
+ if ((p0 == NULL) ||
+ (str_to_unsigned_vals(p, p0 - p, ',', 2, &app.burst_size_io_tx_read, &app.burst_size_io_tx_write) != 2)) {
+ return -6;
+ }
+
+ if ((app.burst_size_io_rx_read == 0) ||
+ (app.burst_size_io_rx_write == 0) ||
+ (app.burst_size_worker_read == 0) ||
+ (app.burst_size_worker_write == 0) ||
+ (app.burst_size_io_tx_read == 0) ||
+ (app.burst_size_io_tx_write == 0)) {
+ return -7;
+ }
+
+ if ((app.burst_size_io_rx_read > APP_MBUF_ARRAY_SIZE) ||
+ (app.burst_size_io_rx_write > APP_MBUF_ARRAY_SIZE) ||
+ (app.burst_size_worker_read > APP_MBUF_ARRAY_SIZE) ||
+ (app.burst_size_worker_write > APP_MBUF_ARRAY_SIZE) ||
+ ((2 * app.burst_size_io_tx_read) > APP_MBUF_ARRAY_SIZE) ||
+ (app.burst_size_io_tx_write > APP_MBUF_ARRAY_SIZE)) {
+ return -8;
+ }
+
+ return 0;
+}
+
+#ifndef APP_ARG_NUMERICAL_SIZE_CHARS
+#define APP_ARG_NUMERICAL_SIZE_CHARS 15
+#endif
+
+static int
+parse_arg_pos_lb(const char *arg)
+{
+ uint32_t x;
+ char *endpt;
+
+ if (strnlen(arg, APP_ARG_NUMERICAL_SIZE_CHARS + 1) == APP_ARG_NUMERICAL_SIZE_CHARS + 1) {
+ return -1;
+ }
+
+ errno = 0;
+ x = strtoul(arg, &endpt, 10);
+ if (errno != 0 || endpt == arg || *endpt != '\0'){
+ return -2;
+ }
+
+ if (x >= 64) {
+ return -3;
+ }
+
+ app.pos_lb = (uint8_t) x;
+
+ return 0;
+}
+
+/* Parse the argument given in the command line of the application */
+int
+app_parse_args(int argc, char **argv)
+{
+ int opt, ret;
+ char **argvopt;
+ int option_index;
+ char *prgname = argv[0];
+ static struct option lgopts[] = {
+ {"rx", 1, 0, 0},
+ {"tx", 1, 0, 0},
+ {"w", 1, 0, 0},
+ {"lpm", 1, 0, 0},
+ {"rsz", 1, 0, 0},
+ {"bsz", 1, 0, 0},
+ {"pos-lb", 1, 0, 0},
+ {NULL, 0, 0, 0}
+ };
+ uint32_t arg_w = 0;
+ uint32_t arg_rx = 0;
+ uint32_t arg_tx = 0;
+ uint32_t arg_lpm = 0;
+ uint32_t arg_rsz = 0;
+ uint32_t arg_bsz = 0;
+ uint32_t arg_pos_lb = 0;
+
+ argvopt = argv;
+
+ while ((opt = getopt_long(argc, argvopt, "",
+ lgopts, &option_index)) != EOF) {
+
+ switch (opt) {
+ /* long options */
+ case 0:
+ if (!strcmp(lgopts[option_index].name, "rx")) {
+ arg_rx = 1;
+ ret = parse_arg_rx(optarg);
+ if (ret) {
+ printf("Incorrect value for --rx argument (%d)\n", ret);
+ return -1;
+ }
+ }
+ if (!strcmp(lgopts[option_index].name, "tx")) {
+ arg_tx = 1;
+ ret = parse_arg_tx(optarg);
+ if (ret) {
+ printf("Incorrect value for --tx argument (%d)\n", ret);
+ return -1;
+ }
+ }
+ if (!strcmp(lgopts[option_index].name, "w")) {
+ arg_w = 1;
+ ret = parse_arg_w(optarg);
+ if (ret) {
+ printf("Incorrect value for --w argument (%d)\n", ret);
+ return -1;
+ }
+ }
+ if (!strcmp(lgopts[option_index].name, "lpm")) {
+ arg_lpm = 1;
+ ret = parse_arg_lpm(optarg);
+ if (ret) {
+ printf("Incorrect value for --lpm argument (%d)\n", ret);
+ return -1;
+ }
+ }
+ if (!strcmp(lgopts[option_index].name, "rsz")) {
+ arg_rsz = 1;
+ ret = parse_arg_rsz(optarg);
+ if (ret) {
+ printf("Incorrect value for --rsz argument (%d)\n", ret);
+ return -1;
+ }
+ }
+ if (!strcmp(lgopts[option_index].name, "bsz")) {
+ arg_bsz = 1;
+ ret = parse_arg_bsz(optarg);
+ if (ret) {
+ printf("Incorrect value for --bsz argument (%d)\n", ret);
+ return -1;
+ }
+ }
+ if (!strcmp(lgopts[option_index].name, "pos-lb")) {
+ arg_pos_lb = 1;
+ ret = parse_arg_pos_lb(optarg);
+ if (ret) {
+ printf("Incorrect value for --pos-lb argument (%d)\n", ret);
+ return -1;
+ }
+ }
+ break;
+
+ default:
+ return -1;
+ }
+ }
+
+ /* Check that all mandatory arguments are provided */
+ if ((arg_rx == 0) || (arg_tx == 0) || (arg_w == 0) || (arg_lpm == 0)){
+ printf("Not all mandatory arguments are present\n");
+ return -1;
+ }
+
+ /* Assign default values for the optional arguments not provided */
+ if (arg_rsz == 0) {
+ app.nic_rx_ring_size = APP_DEFAULT_NIC_RX_RING_SIZE;
+ app.nic_tx_ring_size = APP_DEFAULT_NIC_TX_RING_SIZE;
+ app.ring_rx_size = APP_DEFAULT_RING_RX_SIZE;
+ app.ring_tx_size = APP_DEFAULT_RING_TX_SIZE;
+ }
+
+ if (arg_bsz == 0) {
+ app.burst_size_io_rx_read = APP_DEFAULT_BURST_SIZE_IO_RX_READ;
+ app.burst_size_io_rx_write = APP_DEFAULT_BURST_SIZE_IO_RX_WRITE;
+ app.burst_size_io_tx_read = APP_DEFAULT_BURST_SIZE_IO_TX_READ;
+ app.burst_size_io_tx_write = APP_DEFAULT_BURST_SIZE_IO_TX_WRITE;
+ app.burst_size_worker_read = APP_DEFAULT_BURST_SIZE_WORKER_READ;
+ app.burst_size_worker_write = APP_DEFAULT_BURST_SIZE_WORKER_WRITE;
+ }
+
+ if (arg_pos_lb == 0) {
+ app.pos_lb = APP_DEFAULT_IO_RX_LB_POS;
+ }
+
+ /* Check cross-consistency of arguments */
+ if ((ret = app_check_lpm_table()) < 0) {
+ printf("At least one LPM rule is inconsistent (%d)\n", ret);
+ return -1;
+ }
+ if (app_check_every_rx_port_is_tx_enabled() < 0) {
+ printf("On LPM lookup miss, packet is sent back on the input port.\n");
+ printf("At least one RX port is not enabled for TX.\n");
+ return -2;
+ }
+
+ if (optind >= 0)
+ argv[optind - 1] = prgname;
+
+ ret = optind - 1;
+ optind = 0; /* reset getopt lib */
+ return ret;
+}
+
+int
+app_get_nic_rx_queues_per_port(uint8_t port)
+{
+ uint32_t i, count;
+
+ if (port >= APP_MAX_NIC_PORTS) {
+ return -1;
+ }
+
+ count = 0;
+ for (i = 0; i < APP_MAX_RX_QUEUES_PER_NIC_PORT; i ++) {
+ if (app.nic_rx_queue_mask[port][i] == 1) {
+ count ++;
+ }
+ }
+
+ return count;
+}
+
+int
+app_get_lcore_for_nic_rx(uint8_t port, uint8_t queue, uint32_t *lcore_out)
+{
+ uint32_t lcore;
+
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ struct app_lcore_params_io *lp = &app.lcore_params[lcore].io;
+ uint32_t i;
+
+ if (app.lcore_params[lcore].type != e_APP_LCORE_IO) {
+ continue;
+ }
+
+ for (i = 0; i < lp->rx.n_nic_queues; i ++) {
+ if ((lp->rx.nic_queues[i].port == port) &&
+ (lp->rx.nic_queues[i].queue == queue)) {
+ *lcore_out = lcore;
+ return 0;
+ }
+ }
+ }
+
+ return -1;
+}
+
+int
+app_get_lcore_for_nic_tx(uint8_t port, uint32_t *lcore_out)
+{
+ uint32_t lcore;
+
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ struct app_lcore_params_io *lp = &app.lcore_params[lcore].io;
+ uint32_t i;
+
+ if (app.lcore_params[lcore].type != e_APP_LCORE_IO) {
+ continue;
+ }
+
+ for (i = 0; i < lp->tx.n_nic_ports; i ++) {
+ if (lp->tx.nic_ports[i] == port) {
+ *lcore_out = lcore;
+ return 0;
+ }
+ }
+ }
+
+ return -1;
+}
+
+int
+app_is_socket_used(uint32_t socket)
+{
+ uint32_t lcore;
+
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ if (app.lcore_params[lcore].type == e_APP_LCORE_DISABLED) {
+ continue;
+ }
+
+ if (socket == rte_lcore_to_socket_id(lcore)) {
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+uint32_t
+app_get_lcores_io_rx(void)
+{
+ uint32_t lcore, count;
+
+ count = 0;
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ struct app_lcore_params_io *lp_io = &app.lcore_params[lcore].io;
+
+ if ((app.lcore_params[lcore].type != e_APP_LCORE_IO) ||
+ (lp_io->rx.n_nic_queues == 0)) {
+ continue;
+ }
+
+ count ++;
+ }
+
+ return count;
+}
+
+uint32_t
+app_get_lcores_worker(void)
+{
+ uint32_t lcore, count;
+
+ count = 0;
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ if (app.lcore_params[lcore].type != e_APP_LCORE_WORKER) {
+ continue;
+ }
+
+ count ++;
+ }
+
+ if (count > APP_MAX_WORKER_LCORES) {
+ rte_panic("Algorithmic error (too many worker lcores)\n");
+ return 0;
+ }
+
+ return count;
+}
+
+void
+app_print_params(void)
+{
+ uint32_t port, queue, lcore, rule, i, j;
+
+ /* Print NIC RX configuration */
+ printf("NIC RX ports: ");
+ for (port = 0; port < APP_MAX_NIC_PORTS; port ++) {
+ uint32_t n_rx_queues = app_get_nic_rx_queues_per_port((uint8_t) port);
+
+ if (n_rx_queues == 0) {
+ continue;
+ }
+
+ printf("%u (", port);
+ for (queue = 0; queue < APP_MAX_RX_QUEUES_PER_NIC_PORT; queue ++) {
+ if (app.nic_rx_queue_mask[port][queue] == 1) {
+ printf("%u ", queue);
+ }
+ }
+ printf(") ");
+ }
+ printf(";\n");
+
+ /* Print I/O lcore RX params */
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ struct app_lcore_params_io *lp = &app.lcore_params[lcore].io;
+
+ if ((app.lcore_params[lcore].type != e_APP_LCORE_IO) ||
+ (lp->rx.n_nic_queues == 0)) {
+ continue;
+ }
+
+ printf("I/O lcore %u (socket %u): ", lcore, rte_lcore_to_socket_id(lcore));
+
+ printf("RX ports ");
+ for (i = 0; i < lp->rx.n_nic_queues; i ++) {
+ printf("(%u, %u) ",
+ (uint32_t) lp->rx.nic_queues[i].port,
+ (uint32_t) lp->rx.nic_queues[i].queue);
+ }
+ printf("; ");
+
+ printf("Output rings ");
+ for (i = 0; i < lp->rx.n_rings; i ++) {
+ printf("%p ", lp->rx.rings[i]);
+ }
+ printf(";\n");
+ }
+
+ /* Print worker lcore RX params */
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ struct app_lcore_params_worker *lp = &app.lcore_params[lcore].worker;
+
+ if (app.lcore_params[lcore].type != e_APP_LCORE_WORKER) {
+ continue;
+ }
+
+ printf("Worker lcore %u (socket %u) ID %u: ",
+ lcore,
+ rte_lcore_to_socket_id(lcore),
+ lp->worker_id);
+
+ printf("Input rings ");
+ for (i = 0; i < lp->n_rings_in; i ++) {
+ printf("%p ", lp->rings_in[i]);
+ }
+
+ printf(";\n");
+ }
+
+ printf("\n");
+
+ /* Print NIC TX configuration */
+ printf("NIC TX ports: ");
+ for (port = 0; port < APP_MAX_NIC_PORTS; port ++) {
+ if (app.nic_tx_port_mask[port] == 1) {
+ printf("%u ", port);
+ }
+ }
+ printf(";\n");
+
+ /* Print I/O TX lcore params */
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ struct app_lcore_params_io *lp = &app.lcore_params[lcore].io;
+ uint32_t n_workers = app_get_lcores_worker();
+
+ if ((app.lcore_params[lcore].type != e_APP_LCORE_IO) ||
+ (lp->tx.n_nic_ports == 0)) {
+ continue;
+ }
+
+ printf("I/O lcore %u (socket %u): ", lcore, rte_lcore_to_socket_id(lcore));
+
+ printf("Input rings per TX port ");
+ for (i = 0; i < lp->tx.n_nic_ports; i ++) {
+ port = lp->tx.nic_ports[i];
+
+ printf("%u (", port);
+ for (j = 0; j < n_workers; j ++) {
+ printf("%p ", lp->tx.rings[port][j]);
+ }
+ printf(") ");
+
+ }
+
+ printf(";\n");
+ }
+
+ /* Print worker lcore TX params */
+ for (lcore = 0; lcore < APP_MAX_LCORES; lcore ++) {
+ struct app_lcore_params_worker *lp = &app.lcore_params[lcore].worker;
+
+ if (app.lcore_params[lcore].type != e_APP_LCORE_WORKER) {
+ continue;
+ }
+
+ printf("Worker lcore %u (socket %u) ID %u: \n",
+ lcore,
+ rte_lcore_to_socket_id(lcore),
+ lp->worker_id);
+
+ printf("Output rings per TX port ");
+ for (port = 0; port < APP_MAX_NIC_PORTS; port ++) {
+ if (lp->rings_out[port] != NULL) {
+ printf("%u (%p) ", port, lp->rings_out[port]);
+ }
+ }
+
+ printf(";\n");
+ }
+
+ /* Print LPM rules */
+ printf("LPM rules: \n");
+ for (rule = 0; rule < app.n_lpm_rules; rule ++) {
+ uint32_t ip = app.lpm_rules[rule].ip;
+ uint8_t depth = app.lpm_rules[rule].depth;
+ uint8_t if_out = app.lpm_rules[rule].if_out;
+
+ printf("\t%u: %u.%u.%u.%u/%u => %u;\n",
+ rule,
+ (ip & 0xFF000000) >> 24,
+ (ip & 0x00FF0000) >> 16,
+ (ip & 0x0000FF00) >> 8,
+ ip & 0x000000FF,
+ (uint32_t) depth,
+ (uint32_t) if_out
+ );
+ }
+
+ /* Rings */
+ printf("Ring sizes: NIC RX = %u; Worker in = %u; Worker out = %u; NIC TX = %u;\n",
+ app.nic_rx_ring_size,
+ app.ring_rx_size,
+ app.ring_tx_size,
+ app.nic_tx_ring_size);
+
+ /* Bursts */
+ printf("Burst sizes: I/O RX (rd = %u, wr = %u); Worker (rd = %u, wr = %u); I/O TX (rd = %u, wr = %u)\n",
+ app.burst_size_io_rx_read,
+ app.burst_size_io_rx_write,
+ app.burst_size_worker_read,
+ app.burst_size_worker_write,
+ app.burst_size_io_tx_read,
+ app.burst_size_io_tx_write);
+}