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// SPDX-License-Identifier: GPL-2.0-or-later
#include "realtek.h"
int realtek_dsa_init_tagger(struct realtek_priv *priv)
{
const struct dsa_device_ops *tagger_ops = NULL;
struct dsa_switch_ops *ops;
/* TODO: Tagging can be configured per port in Linux. barebox DSA core
* will need some refactoring to do that. For now we just use the
* Linux default and leave ->change_tag_protocol unused and
* dsa-tag-protocol OF properties unheeded.
*/
switch (priv->ops->get_tag_protocol(priv)) {
case DSA_TAG_PROTO_RTL4_A:
if (IS_ENABLED(CONFIG_NET_DSA_TAG_RTL4_A))
tagger_ops = &rtl4a_netdev_ops;
break;
case DSA_TAG_PROTO_RTL8_4:
if (IS_ENABLED(CONFIG_NET_DSA_TAG_RTL8_4))
tagger_ops = &rtl8_4_netdev_ops;
break;
case DSA_TAG_PROTO_RTL8_4T:
if (IS_ENABLED(CONFIG_NET_DSA_TAG_RTL8_4))
tagger_ops = &rtl8_4t_netdev_ops;
break;
default:
break;
}
if (!tagger_ops)
return -EINVAL;
ops = memdup(priv->ds->ops, sizeof(*priv->ds->ops));
ops->xmit = tagger_ops->xmit;
ops->rcv = tagger_ops->rcv;
priv->ds->ops = ops;
priv->ds->needed_headroom = tagger_ops->needed_headroom;
priv->ds->needed_rx_tailroom = tagger_ops->needed_tailroom;
priv->ds->needed_tx_tailroom = tagger_ops->needed_tailroom;
return 0;
}
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