linux/drivers/net/ethernet/netronome/nfp/nfp_devlink.c

/*
 * Copyright (C) 2017 Netronome Systems, Inc.
 *
 * This software is dual licensed under the GNU General License Version 2,
 * June 1991 as shown in the file COPYING in the top-level directory of this
 * source tree or the BSD 2-Clause License provided below.  You have the
 * option to license this software under the complete terms of either license.
 *
 * The BSD 2-Clause License:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      1. Redistributions of source code must retain the above
 *         copyright notice, this list of conditions and the following
 *         disclaimer.
 *
 *      2. Redistributions in binary form must reproduce the above
 *         copyright notice, this list of conditions and the following
 *         disclaimer in the documentation and/or other materials
 *         provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/rtnetlink.h>
#include <net/devlink.h>

#include "nfpcore/nfp_nsp.h"
#include "nfp_app.h"
#include "nfp_main.h"
#include "nfp_port.h"

static int
nfp_devlink_fill_eth_port(struct nfp_port *port,
			  struct nfp_eth_table_port *copy)
{
	struct nfp_eth_table_port *eth_port;

	eth_port = __nfp_port_get_eth_port(port);
	if (!eth_port)
		return -EINVAL;

	memcpy(copy, eth_port, sizeof(*eth_port));

	return 0;
}

const struct devlink_ops nfp_devlink_ops = {
};

int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)
{
	struct nfp_eth_table_port eth_port;
	struct devlink *devlink;
	int ret;

	rtnl_lock();
	ret = nfp_devlink_fill_eth_port(port, &eth_port);
	rtnl_unlock();
	if (ret)
		return ret;

	devlink_port_type_eth_set(&port->dl_port, port->netdev);
	if (eth_port.is_split)
		devlink_port_split_set(&port->dl_port, eth_port.label_port);

	devlink = priv_to_devlink(app->pf);

	return devlink_port_register(devlink, &port->dl_port, port->eth_id);
}

void nfp_devlink_port_unregister(struct nfp_port *port)
{
	devlink_port_unregister(&port->dl_port);
}