drivers/net/can/c_can/c_can_ethtool.c

Source file repositories/reference/linux-study-clean/drivers/net/can/c_can/c_can_ethtool.c

File Facts

System
Linux kernel
Corpus path
drivers/net/can/c_can/c_can_ethtool.c
Extension
.c
Size
803 bytes
Lines
31
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright 2021, Dario Binacchi <dariobin@libero.it>
 */

#include <linux/ethtool.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/netdevice.h>
#include <linux/can/dev.h>

#include "c_can.h"

static void c_can_get_ringparam(struct net_device *netdev,
				struct ethtool_ringparam *ring,
				struct kernel_ethtool_ringparam *kernel_ring,
				struct netlink_ext_ack *extack)
{
	struct c_can_priv *priv = netdev_priv(netdev);

	ring->rx_max_pending = priv->msg_obj_num;
	ring->tx_max_pending = priv->msg_obj_num;
	ring->rx_pending = priv->msg_obj_rx_num;
	ring->tx_pending = priv->msg_obj_tx_num;
}

const struct ethtool_ops c_can_ethtool_ops = {
	.get_ringparam = c_can_get_ringparam,
	.get_ts_info = ethtool_op_get_ts_info,
};

Annotation

Implementation Notes