4 * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of Intel Corporation nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * version: DPDK.L.1.2.3-3
43 #include <rte_memory.h>
44 #include <rte_string_fns.h>
50 /* global var for number of clients - extern in header */
53 static const char *progname;
56 * Prints out usage information to stdout
62 "%s [EAL options] -- -p PORTMASK -n NUM_CLIENTS [-s NUM_SOCKETS]\n"
63 " -p PORTMASK: hexadecimal bitmask of ports to use\n"
64 " -n NUM_CLIENTS: number of client processes to use\n"
69 * The ports to be used by the application are passed in
70 * the form of a bitmask. This function parses the bitmask
71 * and places the port numbers to be used into the port[]
75 parse_portmask(uint8_t max_ports, const char *portmask)
81 if (portmask == NULL || *portmask == '\0')
84 /* convert parameter to a number and verify */
85 pm = strtoul(portmask, &end, 16);
86 if (end == NULL || *end != '\0' || pm == 0)
89 /* loop through bits of the mask and mark ports */
91 if (pm & 0x01){ /* bit is set in mask, use port */
92 if (count >= max_ports)
93 printf("WARNING: requested port %u not present"
94 " - ignoring\n", (unsigned)count);
96 ports->id[ports->num_ports++] = count;
106 * Take the number of clients parameter passed to the app
107 * and convert to a number to store in the num_clients variable
110 parse_num_clients(const char *clients)
115 if (clients == NULL || *clients == '\0')
118 temp = strtoul(clients, &end, 10);
119 if (end == NULL || *end != '\0' || temp == 0)
122 num_clients = (uint8_t)temp;
127 * The application specific arguments follow the DPDK-specific
128 * arguments which are stripped by the DPDK init. This function
129 * processes these application arguments, printing usage info
133 parse_app_args(uint8_t max_ports, int argc, char *argv[])
135 int option_index, opt;
136 char **argvopt = argv;
137 static struct option lgopts[] = { /* no long options */
142 while ((opt = getopt_long(argc, argvopt, "n:p:", lgopts,
143 &option_index)) != EOF){
146 if (parse_portmask(max_ports, optarg) != 0){
152 if (parse_num_clients(optarg) != 0){
158 printf("ERROR: Unknown option '%c'\n", opt);
164 if (ports->num_ports == 0 || num_clients == 0){
169 if (ports->num_ports % 2 != 0){
170 printf("ERROR: application requires an even number of ports to use\n");