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41 #include <rte_memory.h>
42 #include <rte_string_fns.h>
48 /* global var for number of clients - extern in header */
51 static const char *progname;
54 * Prints out usage information to stdout
60 "%s [EAL options] -- -p PORTMASK -n NUM_CLIENTS [-s NUM_SOCKETS]\n"
61 " -p PORTMASK: hexadecimal bitmask of ports to use\n"
62 " -n NUM_CLIENTS: number of client processes to use\n"
67 * The ports to be used by the application are passed in
68 * the form of a bitmask. This function parses the bitmask
69 * and places the port numbers to be used into the port[]
73 parse_portmask(uint8_t max_ports, const char *portmask)
79 if (portmask == NULL || *portmask == '\0')
82 /* convert parameter to a number and verify */
83 pm = strtoul(portmask, &end, 16);
84 if (end == NULL || *end != '\0' || pm == 0)
87 /* loop through bits of the mask and mark ports */
89 if (pm & 0x01){ /* bit is set in mask, use port */
90 if (count >= max_ports)
91 printf("WARNING: requested port %u not present"
92 " - ignoring\n", (unsigned)count);
94 ports->id[ports->num_ports++] = count;
104 * Take the number of clients parameter passed to the app
105 * and convert to a number to store in the num_clients variable
108 parse_num_clients(const char *clients)
113 if (clients == NULL || *clients == '\0')
116 temp = strtoul(clients, &end, 10);
117 if (end == NULL || *end != '\0' || temp == 0)
120 num_clients = (uint8_t)temp;
125 * The application specific arguments follow the DPDK-specific
126 * arguments which are stripped by the DPDK init. This function
127 * processes these application arguments, printing usage info
131 parse_app_args(uint16_t max_ports, int argc, char *argv[])
133 int option_index, opt;
134 char **argvopt = argv;
135 static struct option lgopts[] = { /* no long options */
140 while ((opt = getopt_long(argc, argvopt, "n:p:", lgopts,
141 &option_index)) != EOF){
144 if (parse_portmask(max_ports, optarg) != 0){
150 if (parse_num_clients(optarg) != 0){
156 printf("ERROR: Unknown option '%c'\n", opt);
162 if (ports->num_ports == 0 || num_clients == 0){
167 if (ports->num_ports % 2 != 0){
168 printf("ERROR: application requires an even number of ports to use\n");