netdevsim: support ethtool ring and coalesce settings (a7fc6db0) · Commits · 戴 / test

drivers/net/netdevsim/ethtool.c

+63 −3

Original line number	Diff line number	Diff line
		@@ -42,18 +42,68 @@ nsim_set_pauseparam(struct net_device dev, struct ethtool_pauseparam pause)
		return 0;
		}

		static int nsim_get_coalesce(struct net_device *dev,
		struct ethtool_coalesce *coal)
		{
		struct netdevsim *ns = netdev_priv(dev);

		memcpy(coal, &ns->ethtool.coalesce, sizeof(ns->ethtool.coalesce));
		return 0;
		}

		static int nsim_set_coalesce(struct net_device *dev,
		struct ethtool_coalesce *coal)
		{
		struct netdevsim *ns = netdev_priv(dev);

		memcpy(&ns->ethtool.coalesce, coal, sizeof(ns->ethtool.coalesce));
		return 0;
		}

		static void nsim_get_ringparam(struct net_device *dev,
		struct ethtool_ringparam *ring)
		{
		struct netdevsim *ns = netdev_priv(dev);

		memcpy(ring, &ns->ethtool.ring, sizeof(ns->ethtool.ring));
		}

		static int nsim_set_ringparam(struct net_device *dev,
		struct ethtool_ringparam *ring)
		{
		struct netdevsim *ns = netdev_priv(dev);

		memcpy(&ns->ethtool.ring, ring, sizeof(ns->ethtool.ring));
		return 0;
		}

		static const struct ethtool_ops nsim_ethtool_ops = {
		.supported_coalesce_params = ETHTOOL_COALESCE_ALL_PARAMS,
		.get_pause_stats = nsim_get_pause_stats,
		.get_pauseparam = nsim_get_pauseparam,
		.set_pauseparam = nsim_set_pauseparam,
		.set_coalesce = nsim_set_coalesce,
		.get_coalesce = nsim_get_coalesce,
		.get_ringparam = nsim_get_ringparam,
		.set_ringparam = nsim_set_ringparam,
		};

		static void nsim_ethtool_ring_init(struct netdevsim *ns)
		{
		ns->ethtool.ring.rx_max_pending = 4096;
		ns->ethtool.ring.rx_jumbo_max_pending = 4096;
		ns->ethtool.ring.rx_mini_max_pending = 4096;
		ns->ethtool.ring.tx_max_pending = 4096;
		}

		void nsim_ethtool_init(struct netdevsim *ns)
		{
		struct dentry ethtool, dir;

		ns->netdev->ethtool_ops = &nsim_ethtool_ops;

		nsim_ethtool_ring_init(ns);

		ethtool = debugfs_create_dir("ethtool", ns->nsim_dev_port->ddir);

		dir = debugfs_create_dir("pause", ethtool);
		@@ -61,4 +111,14 @@ void nsim_ethtool_init(struct netdevsim *ns)
		&ns->ethtool.pauseparam.report_stats_rx);
		debugfs_create_bool("report_stats_tx", 0600, dir,
		&ns->ethtool.pauseparam.report_stats_tx);

		dir = debugfs_create_dir("ring", ethtool);
		debugfs_create_u32("rx_max_pending", 0600, dir,
		&ns->ethtool.ring.rx_max_pending);
		debugfs_create_u32("rx_jumbo_max_pending", 0600, dir,
		&ns->ethtool.ring.rx_jumbo_max_pending);
		debugfs_create_u32("rx_mini_max_pending", 0600, dir,
		&ns->ethtool.ring.rx_mini_max_pending);
		debugfs_create_u32("tx_max_pending", 0600, dir,
		&ns->ethtool.ring.tx_max_pending);
		}

drivers/net/netdevsim/netdevsim.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@

		#include <linux/debugfs.h>
		#include <linux/device.h>
		#include <linux/ethtool.h>
		#include <linux/kernel.h>
		#include <linux/list.h>
		#include <linux/netdevice.h>
		@@ -60,6 +61,8 @@ struct nsim_ethtool_pauseparam {

		struct nsim_ethtool {
		struct nsim_ethtool_pauseparam pauseparam;
		struct ethtool_coalesce coalesce;
		struct ethtool_ringparam ring;
		};

		struct netdevsim {

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