can/c_can/c_can_ethtool.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Copyright 2021, Dario Binacchi <dariobin@libero.it>
0004  */
0005
0006 #include <linux/ethtool.h>
0007 #include <linux/kernel.h>
0008 #include <linux/platform_device.h>
0009 #include <linux/netdevice.h>
0010 #include <linux/can/dev.h>
0011
0012 #include "c_can.h"
0013
0014 static void c_can_get_ringparam(struct net_device *netdev,
0015                 struct ethtool_ringparam *ring,
0016                 struct kernel_ethtool_ringparam *kernel_ring,
0017                 struct netlink_ext_ack *extack)
0018 {
0019     struct c_can_priv *priv = netdev_priv(netdev);
0020
0021     ring->rx_max_pending = priv->msg_obj_num;
0022     ring->tx_max_pending = priv->msg_obj_num;
0023     ring->rx_pending = priv->msg_obj_rx_num;
0024     ring->tx_pending = priv->msg_obj_tx_num;
0025 }
0026
0027 const struct ethtool_ops c_can_ethtool_ops = {
0028     .get_ringparam = c_can_get_ringparam,
0029     .get_ts_info = ethtool_op_get_ts_info,
0030 };