Commit 0d7f76dc authored by Jakub Kicinski's avatar Jakub Kicinski Committed by David S. Miller
Browse files

netdevsim: add FEC settings support 



Add support for ethtool FEC and some ethtool error injection.

Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1e5d1f69

drivers/net/netdevsim/ethtool.c

+36 −0
Original line number Diff line number Diff line
@@ -77,6 +77,34 @@ static int nsim_set_ringparam(struct net_device *dev, 
	return 0;

}



static int

nsim_get_fecparam(struct net_device *dev, struct ethtool_fecparam *fecparam)

{

	struct netdevsim *ns = netdev_priv(dev);



	if (ns->ethtool.get_err)

		return -ns->ethtool.get_err;

	memcpy(fecparam, &ns->ethtool.fec, sizeof(ns->ethtool.fec));

	return 0;

}



static int

nsim_set_fecparam(struct net_device *dev, struct ethtool_fecparam *fecparam)

{

	struct netdevsim *ns = netdev_priv(dev);

	u32 fec;



	if (ns->ethtool.set_err)

		return -ns->ethtool.set_err;

	memcpy(&ns->ethtool.fec, fecparam, sizeof(ns->ethtool.fec));

	fec = fecparam->fec;

	if (fec == ETHTOOL_FEC_AUTO)

		fec |= ETHTOOL_FEC_OFF;

	fec |= ETHTOOL_FEC_NONE;

	ns->ethtool.fec.active_fec = 1 << (fls(fec) - 1);

	return 0;

}



static const struct ethtool_ops nsim_ethtool_ops = {

	.supported_coalesce_params	= ETHTOOL_COALESCE_ALL_PARAMS,

	.get_pause_stats	        = nsim_get_pause_stats,
@@ -86,6 +114,8 @@ static const struct ethtool_ops nsim_ethtool_ops = { 
	.get_coalesce			= nsim_get_coalesce,

	.get_ringparam			= nsim_get_ringparam,

	.set_ringparam			= nsim_set_ringparam,

	.get_fecparam			= nsim_get_fecparam,

	.set_fecparam			= nsim_set_fecparam,

};



static void nsim_ethtool_ring_init(struct netdevsim *ns)
@@ -104,8 +134,14 @@ void nsim_ethtool_init(struct netdevsim *ns) 


	nsim_ethtool_ring_init(ns);



	ns->ethtool.fec.fec = ETHTOOL_FEC_NONE;

	ns->ethtool.fec.active_fec = ETHTOOL_FEC_NONE;



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



	debugfs_create_u32("get_err", 0600, ethtool, &ns->ethtool.get_err);

	debugfs_create_u32("set_err", 0600, ethtool, &ns->ethtool.set_err);



	dir = debugfs_create_dir("pause", ethtool);

	debugfs_create_bool("report_stats_rx", 0600, dir,

			    &ns->ethtool.pauseparam.report_stats_rx);

drivers/net/netdevsim/netdevsim.h

+3 −0
Original line number Diff line number Diff line
@@ -60,9 +60,12 @@ struct nsim_ethtool_pauseparam { 
};



struct nsim_ethtool {

	u32 get_err;

	u32 set_err;

	struct nsim_ethtool_pauseparam pauseparam;

	struct ethtool_coalesce coalesce;

	struct ethtool_ringparam ring;

	struct ethtool_fecparam fec;

};



struct netdevsim {