tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
netdevsim: add pause frame stats
Add minimal ethtool interface for testing ethtool pause stats.
v2: add missing static on nsim_ethtool_ops
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Jakub Kicinski
and committed by
David S. Miller
ff1f7c17
8c00bd93
+77
-1
+1
-1
drivers/net/netdevsim/Makefile
+1
-1
drivers/net/netdevsim/Makefile
+64
drivers/net/netdevsim/ethtool.c
+64
drivers/net/netdevsim/ethtool.c
···
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// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2020 Facebook
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#include <linux/debugfs.h>
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#include <linux/ethtool.h>
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#include <linux/random.h>
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#include "netdevsim.h"
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static void
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nsim_get_pause_stats(struct net_device *dev,
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struct ethtool_pause_stats *pause_stats)
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{
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struct netdevsim *ns = netdev_priv(dev);
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if (ns->ethtool.report_stats_rx)
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pause_stats->rx_pause_frames = 1;
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if (ns->ethtool.report_stats_tx)
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pause_stats->tx_pause_frames = 2;
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}
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static void
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nsim_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause)
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{
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struct netdevsim *ns = netdev_priv(dev);
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pause->autoneg = 0; /* We don't support ksettings, so can't pretend */
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pause->rx_pause = ns->ethtool.rx;
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pause->tx_pause = ns->ethtool.tx;
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}
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static int
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nsim_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause)
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{
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struct netdevsim *ns = netdev_priv(dev);
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if (pause->autoneg)
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return -EINVAL;
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ns->ethtool.rx = pause->rx_pause;
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ns->ethtool.tx = pause->tx_pause;
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return 0;
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}
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static const struct ethtool_ops nsim_ethtool_ops = {
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.get_pause_stats = nsim_get_pause_stats,
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.get_pauseparam = nsim_get_pauseparam,
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.set_pauseparam = nsim_set_pauseparam,
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};
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void nsim_ethtool_init(struct netdevsim *ns)
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{
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struct dentry *ethtool, *dir;
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ns->netdev->ethtool_ops = &nsim_ethtool_ops;
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ethtool = debugfs_create_dir("ethtool", ns->nsim_dev->ddir);
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dir = debugfs_create_dir("pause", ethtool);
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debugfs_create_bool("report_stats_rx", 0600, dir,
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&ns->ethtool.report_stats_rx);
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debugfs_create_bool("report_stats_tx", 0600, dir,
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&ns->ethtool.report_stats_tx);
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}
+1
drivers/net/netdevsim/netdev.c
+1
drivers/net/netdevsim/netdev.c
+11
drivers/net/netdevsim/netdevsim.h
+11
drivers/net/netdevsim/netdevsim.h
···
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u32 ok;
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};
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struct nsim_ethtool {
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bool rx;
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bool tx;
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bool report_stats_rx;
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bool report_stats_tx;
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};
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struct netdevsim {
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struct net_device *netdev;
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struct nsim_dev *nsim_dev;
···
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u32 ports[2][NSIM_UDP_TUNNEL_N_PORTS];
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struct debugfs_u32_array dfs_ports[2];
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} udp_ports;
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struct nsim_ethtool ethtool;
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};
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struct netdevsim *
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nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port);
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void nsim_destroy(struct netdevsim *ns);
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void nsim_ethtool_init(struct netdevsim *ns);
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void nsim_udp_tunnels_debugfs_create(struct nsim_dev *nsim_dev);
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int nsim_udp_tunnels_info_create(struct nsim_dev *nsim_dev,