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42 #include <rte_memory.h>
43 #include <rte_string_fns.h>
49 /* global var for number of clients - extern in header */
52 static const char *progname;
55 * Prints out usage information to stdout
61 "%s [EAL options] -- -p PORTMASK -n NUM_CLIENTS [-s NUM_SOCKETS]\n"
62 " -p PORTMASK: hexadecimal bitmask of ports to use\n"
63 " -n NUM_CLIENTS: number of client processes to use\n"
68 * The ports to be used by the application are passed in
69 * the form of a bitmask. This function parses the bitmask
70 * and places the port numbers to be used into the port[]
74 parse_portmask(uint8_t max_ports, const char *portmask)
80 if (portmask == NULL || *portmask == '\0')
83 /* convert parameter to a number and verify */
84 pm = strtoul(portmask, &end, 16);
85 if (end == NULL || *end != '\0' || pm == 0)
88 /* loop through bits of the mask and mark ports */
90 if (pm & 0x01){ /* bit is set in mask, use port */
91 if (count >= max_ports)
92 printf("WARNING: requested port %u not present"
93 " - ignoring\n", (unsigned)count);
95 ports->id[ports->num_ports++] = count;
105 * Take the number of clients parameter passed to the app
106 * and convert to a number to store in the num_clients variable
109 parse_num_clients(const char *clients)
114 if (clients == NULL || *clients == '\0')
117 temp = strtoul(clients, &end, 10);
118 if (end == NULL || *end != '\0' || temp == 0)
121 num_clients = (uint8_t)temp;
126 * The application specific arguments follow the DPDK-specific
127 * arguments which are stripped by the DPDK init. This function
128 * processes these application arguments, printing usage info
132 parse_app_args(uint8_t max_ports, int argc, char *argv[])
134 int option_index, opt;
135 char **argvopt = argv;
136 static struct option lgopts[] = { /* no long options */
141 while ((opt = getopt_long(argc, argvopt, "n:p:", lgopts,
142 &option_index)) != EOF){
145 if (parse_portmask(max_ports, optarg) != 0){
151 if (parse_num_clients(optarg) != 0){
157 printf("ERROR: Unknown option '%c'\n", opt);
163 if (ports->num_ports == 0 || num_clients == 0){
168 if (ports->num_ports % 2 != 0){
169 printf("ERROR: application requires an even number of ports to use\n");