diff options
Diffstat (limited to 'drivers/net/realtek-dsa/tagger.c')
| -rw-r--r-- | drivers/net/realtek-dsa/tagger.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/realtek-dsa/tagger.c b/drivers/net/realtek-dsa/tagger.c new file mode 100644 index 0000000000..3a41f3b3c1 --- /dev/null +++ b/drivers/net/realtek-dsa/tagger.c @@ -0,0 +1,44 @@ +// 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; +} |