Function pcmd_eeprom_callback

dpdk/examples/ethtool/ethtool-app/ethapp.c:260–316

static void
pcmd_eeprom_callback(void *ptr_params,
	__rte_unused struct cmdline *ctx,
	__rte_unused void *ptr_data)
{
	struct pcmd_intstr_params *params = ptr_params;
	struct ethtool_eeprom info_eeprom;
	int len_eeprom;
	int pos_eeprom;
	int stat;
	unsigned char bytes_eeprom[EEPROM_DUMP_CHUNKSIZE];
	FILE *fp_eeprom;

	if (!rte_eth_dev_is_valid_port(params->port)) {
		printf("Error: Invalid port number %i\n", params->port);
		return;
	}
	len_eeprom = rte_ethtool_get_eeprom_len(params->port);
	if (len_eeprom > 0) {
		fp_eeprom = fopen(params->opt, "wb");
		if (fp_eeprom == NULL) {
			printf("Error opening '%s' for writing\n",
				params->opt);
			return;
		}
		printf("Total EEPROM length: %i bytes\n", len_eeprom);
		info_eeprom.len = EEPROM_DUMP_CHUNKSIZE;
		for (pos_eeprom = 0;
				pos_eeprom < len_eeprom;
				pos_eeprom += EEPROM_DUMP_CHUNKSIZE) {
			info_eeprom.offset = pos_eeprom;
			if (pos_eeprom + EEPROM_DUMP_CHUNKSIZE > len_eeprom)
				info_eeprom.len = len_eeprom - pos_eeprom;
			else
				info_eeprom.len = EEPROM_DUMP_CHUNKSIZE;
			stat = rte_ethtool_get_eeprom(
				params->port, &info_eeprom, bytes_eeprom
				);
			if (stat != 0) {
				printf("EEPROM read error %i\n", stat);
				break;
			}
			if (fwrite(bytes_eeprom,
					1, info_eeprom.len,
					fp_eeprom) != info_eeprom.len) {
				printf("Error writing '%s'\n", params->opt);
				break;
			}
		}
		fclose(fp_eeprom);
	} else if (len_eeprom == 0)
		printf("Port %i: Device does not have EEPROM\n", params->port);
	else if (len_eeprom == -ENOTSUP)
		printf("Port %i: Operation not supported\n", params->port);
	else
		printf("Port %i: Error getting EEPROM\n", params->port);
}