ethsw.c

/* find all the keywords in the command */
static int keywords_find(int argc, char * const argv[],
			 struct ethsw_command_def *parsed_cmd)
{
	int i;
	int j;
	int argc_val;
	int rc = CMD_RET_SUCCESS;

	for (i = 1; i < argc; i++) {
		for (j = 0; j < ethsw_id_count; j++) {
			if (keyword[j].match(j, argc, argv, &i, parsed_cmd))
				break;
		}
	}

	/* if there is no keyword match for a word, the command is invalid */
	for (i = 1; i < argc; i++)
		if (parsed_cmd->cmd_to_keywords[i] == ethsw_id_key_end)
			rc = CMD_RET_USAGE;

	parsed_cmd->cmd_keywords_nr = argc;
	argc_val = 1;

	/* get optional parameters first */
	cmd_keywords_opt_check(parsed_cmd, &argc_val);

	if (argc_val == parsed_cmd->cmd_keywords_nr)
		return CMD_RET_USAGE;

	/*
	 * check the keywords and if a match is found,
	 * get the function to call
	 */
	cmd_keywords_check(parsed_cmd, &argc_val);

	/* error if not all commands' parameters were matched */
	if (argc_val == parsed_cmd->cmd_keywords_nr) {
		if (!parsed_cmd->cmd_function) {
			printf("Command not available for: %s\n", ethsw_name);
			rc = CMD_RET_FAILURE;
		}
	} else {
		rc = CMD_RET_USAGE;
	}

	return rc;
}

static void command_def_init(struct ethsw_command_def *parsed_cmd)
{
	int i;

	for (i = 0; i < ETHSW_MAX_CMD_PARAMS; i++)
		parsed_cmd->cmd_to_keywords[i] = ethsw_id_key_end;

	parsed_cmd->port = ETHSW_CMD_PORT_ALL;
	parsed_cmd->vid = ETHSW_CMD_VLAN_ALL;
	parsed_cmd->aggr_grp = ETHSW_CMD_AGGR_GRP_NONE;
	parsed_cmd->cmd_function = NULL;

	/* We initialize the MAC address with the Broadcast address */
	memset(parsed_cmd->ethaddr, 0xff, sizeof(parsed_cmd->ethaddr));
}

/* function to interpret commands starting with "ethsw " */
static int do_ethsw(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct ethsw_command_def parsed_cmd;
	int rc = CMD_RET_SUCCESS;

	if (argc == 1 || argc >= ETHSW_MAX_CMD_PARAMS)
		return CMD_RET_USAGE;

	command_def_init(&parsed_cmd);

	rc = keywords_find(argc, argv, &parsed_cmd);

	if (rc == CMD_RET_SUCCESS)
		rc = parsed_cmd.cmd_function(&parsed_cmd);

	return rc;
}

#define ETHSW_PORT_CONF_HELP "[port <port_no>] { enable | disable | show } " \
"- enable/disable a port; show a port's configuration"

U_BOOT_CMD(ethsw, ETHSW_MAX_CMD_PARAMS, 0, do_ethsw,
	   "Ethernet l2 switch commands",
	   ETHSW_PORT_CONF_HELP"\n"
	   ETHSW_PORT_STATS_HELP"\n"
	   ETHSW_LEARN_HELP"\n"
	   ETHSW_FDB_HELP"\n"
	   ETHSW_PVID_HELP"\n"
	   ETHSW_VLAN_HELP"\n"
	   ETHSW_PORT_UNTAG_HELP"\n"
	   ETHSW_EGR_VLAN_TAG_HELP"\n"
	   ETHSW_VLAN_FDB_HELP"\n"
	   ETHSW_PORT_INGR_FLTR_HELP"\n"
	   ETHSW_PORT_AGGR_HELP"\n"
);