linux/drivers/net/can/kvaser_pciefd/kvaser_pciefd_devlink.c

// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
/* kvaser_pciefd devlink functions
 *
 * Copyright (C) 2025 KVASER AB, Sweden. All rights reserved.
 */
#include "kvaser_pciefd.h"

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

static int kvaser_pciefd_devlink_info_get(struct devlink *devlink,
					  struct devlink_info_req *req,
					  struct netlink_ext_ack *extack)
{
	struct kvaser_pciefd *pcie = devlink_priv(devlink);
	char buf[] = "xxx.xxx.xxxxx";
	int ret;

	if (pcie->fw_version.major) {
		snprintf(buf, sizeof(buf), "%u.%u.%u",
			 pcie->fw_version.major,
			 pcie->fw_version.minor,
			 pcie->fw_version.build);
		ret = devlink_info_version_running_put(req,
						       DEVLINK_INFO_VERSION_GENERIC_FW,
						       buf);
		if (ret)
			return ret;
	}

	return 0;
}

const struct devlink_ops kvaser_pciefd_devlink_ops = {
	.info_get = kvaser_pciefd_devlink_info_get,
};

int kvaser_pciefd_devlink_port_register(struct kvaser_pciefd_can *can)
{
	int ret;
	struct devlink_port_attrs attrs = {
		.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL,
		.phys.port_number = can->can.dev->dev_port,
	};
	devlink_port_attrs_set(&can->devlink_port, &attrs);

	ret = devlink_port_register(priv_to_devlink(can->kv_pcie),
				    &can->devlink_port, can->can.dev->dev_port);
	if (ret)
		return ret;

	SET_NETDEV_DEVLINK_PORT(can->can.dev, &can->devlink_port);

	return 0;
}

void kvaser_pciefd_devlink_port_unregister(struct kvaser_pciefd_can *can)
{
	devlink_port_unregister(&can->devlink_port);
}