1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright 2021, Dario Binacchi <dariobin@libero.it> 4 */ 5 6 #include <linux/ethtool.h> 7 #include <linux/kernel.h> 8 #include <linux/platform_device.h> 9 #include <linux/netdevice.h> 10 #include <linux/can/dev.h> 11 12 #include "c_can.h" 13 14 static void c_can_get_ringparam(struct net_device *netdev, 15 struct ethtool_ringparam *ring, 16 struct kernel_ethtool_ringparam *kernel_ring, 17 struct netlink_ext_ack *extack) 18 { 19 struct c_can_priv *priv = netdev_priv(netdev); 20 21 ring->rx_max_pending = priv->msg_obj_num; 22 ring->tx_max_pending = priv->msg_obj_num; 23 ring->rx_pending = priv->msg_obj_rx_num; 24 ring->tx_pending = priv->msg_obj_tx_num; 25 } 26 27 const struct ethtool_ops c_can_ethtool_ops = { 28 .get_ringparam = c_can_get_ringparam, 29 .get_ts_info = ethtool_op_get_ts_info, 30 }; 31