/* SPDX-License-Identifier: GPL-2.0+ */ /* Copyright (c) 2024 Hisilicon Limited. */ #ifndef __HBG_TXRX_H #define __HBG_TXRX_H #include <linux/etherdevice.h> #include "hbg_hw.h" static inline u32 hbg_spec_max_frame_len(struct hbg_priv *priv, enum hbg_dir dir) { return (dir == HBG_DIR_TX) ? priv->dev_specs.max_frame_len : priv->dev_specs.rx_buf_size; } static inline u32 hbg_get_spec_fifo_max_num(struct hbg_priv *priv, enum hbg_dir dir) { return (dir == HBG_DIR_TX) ? priv->dev_specs.tx_fifo_num : priv->dev_specs.rx_fifo_num; } static inline bool hbg_fifo_is_full(struct hbg_priv *priv, enum hbg_dir dir) { return hbg_hw_get_fifo_used_num(priv, dir) >= hbg_get_spec_fifo_max_num(priv, dir); } static inline u32 hbg_get_queue_used_num(struct hbg_ring *ring) { u32 len = READ_ONCE(ring->len); if (!len) return 0; return (READ_ONCE(ring->ntu) + len - READ_ONCE(ring->ntc)) % len; } netdev_tx_t hbg_net_start_xmit(struct sk_buff *skb, struct net_device *netdev); int hbg_txrx_init(struct hbg_priv *priv); void hbg_txrx_uninit(struct hbg_priv *priv); #endif