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netdevsim: support ethtool ring and coalesce settings 

Add ethtool ring and coalesce settings support for testing.

Signed-off-by: Antonio Cardace <acardace@redhat.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Antonio Cardace 2020-11-18 21:45:19 +01:00 committed by Jakub Kicinski
parent 77f9591b21
commit a7fc6db099
2 changed files with 66 additions and 3 deletions
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66
drivers/net/netdevsim/ethtool.c
View File

@ -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 = {
.get_pause_stats = nsim_get_pause_stats,
.get_pauseparam = nsim_get_pauseparam,
.set_pauseparam = nsim_set_pauseparam,
.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);
}

3
drivers/net/netdevsim/netdevsim.h
View File

@ -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 {